CN114414100A - Synchronous operation type natural gas energy metering device and Internet of things system - Google Patents

Abstract

The invention discloses a synchronous operation type natural gas energy metering device which comprises a management platform and a shell, wherein a data preprocessing module and an energy calculating module are arranged in the shell, and the data preprocessing module is used for carrying out data classification and storage on perception information of natural gas and transmitting the perception information to the energy calculating module; the energy calculation module calculates standard condition flow in a set time period through the sensing information transmitted by the data preprocessing module, matches natural gas unit heating value corresponding to the standard condition flow through the data preprocessing module, and realizes natural gas energy measurement through the product of the natural gas unit heating value and the standard condition flow; the data preprocessing module can transmit the processed information to the management platform, and the management platform realizes remote energy metering accounting. The invention realizes the integrated design of the natural gas energy metering device, and has good parameter matching of each functional module and more accurate metering.

Description

Synchronous computing natural gas energy metering device and Internet of things system

technical field

The invention relates to the technical field of natural gas energy measurement, in particular to a synchronous arithmetic natural gas energy measurement device and an Internet of Things system.

Background technique

As a high-quality, high-efficiency and clean energy and an important chemical raw material, natural gas has been widely valued and used preferentially in all countries of the world, accounting for 35% of the energy structure. With the rising status of natural gas as an environmentally friendly energy source, accurate, fair and impartial measurement of natural gas is an important technical task for scientific management of natural gas, which is related to the interests of many parties. At the same time, when natural gas is used as a fuel, its actual value should be its calorific value rather than its volume. Foreign natural gas measurement methods generally use the energy measurement method, so it is inevitable that unnecessary disputes will arise in the process of natural gas trade handover with other countries. Therefore, it is of great significance to carry out research on natural gas energy metering equipment.

Existing natural gas gathering and transportation stations are equipped with metering equipment, but traditional metering equipment not only has low response speed, but also has poor measurement accuracy.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to overcome the deficiencies in the prior art, and the purpose is to provide a synchronous operation type natural gas energy metering device to realize the integrated design of the natural gas energy metering device, with good parameter matching of each functional module and more accurate measurement.

The present invention is realized by the following technical solutions: comprising a management platform and a casing, wherein a data preprocessing module and an energy calculation module are arranged in the casing, and the data preprocessing module is used for data classification and storage of the perception information of natural gas, The perception information is transmitted to the energy calculation module; the energy calculation module calculates the standard flow rate within the set time period through the perception information transmitted by the data preprocessing module, and matches the natural gas unit discharge corresponding to the standard flow rate through the data preprocessing module. The energy measurement of natural gas is realized through the product of the two; the data preprocessing module can transmit the processed information to the management platform, and the management platform can realize remote energy measurement and accounting.

Further, it also includes a flow sensor, a pressure sensor and a temperature sensor arranged in the casing, the flow sensor, pressure sensor and temperature sensor are used to collect the sensing information of natural gas, and transmit the collected sensing information to the data preprocessing module ; Also includes a touch display screen and a communication module arranged in the casing, the touch screen display is respectively connected with the data preprocessing module and the energy calculation module, and the communication module is electrically connected to the energy calculation module and the data preprocessing module respectively. connection to realize two-way communication; the data preprocessing module also transmits the acquired perception information of natural gas to the communication module, and the communication module realizes external information exchange.

Further, it also includes a calorific value analysis and processing module arranged in the casing, the output end of the calorific value analysis and processing module is connected to the data preprocessing module, and the input end of the calorific value analysis and processing module is provided with a sample gas processing system and The calorific value analysis and processing module of the standard gas treatment system calculates the calorific value of the standard gas after removing impurities from the standard gas treatment system, and compares the calculation result with the standard value of the calorific value of the standard gas to realize the calorific value analysis and processing module. calibration; the calorific value analysis and processing module calculates the calorific value of the sample gas after the impurity removal of the sample gas processing system, and transmits the calorific value information per unit of natural gas corresponding to the calculated standard flow rate to the data preprocessing module;

The input end of the sample gas processing system is also provided with a sample gas controller, the input end of the sample gas controller is further provided with a sample gas acquisition interface, and the input end of the standard gas processing system is also provided with a standard gas acquisition interface . Further, the sample gas collection interface also includes a sampling pipe arranged in the casing and communicated with the gas pipe, the outer wall of the sampling pipe is also provided with an air pump communicated with the sampling pipe, and the sampling pipe is provided with a first telescopic tube. The movable end of the first telescopic piece is provided with an impurity-removing element for discharging the fluid in the sampling pipe; it also includes a third telescopic piece arranged in the casing, and the movable end of the third telescopic piece is provided with an impurity-removing element for discharging the fluid in the sampling pipe; For the blocked blocking plate, the gas pipe is also provided with a limiting member for fixing the blocking plate, and when the impurity removing element extends into the gas pipe, the limiting member can remove the fixing to the blocking plate.

For the natural gas energy metering device in the prior art, when measuring the natural gas in the gas pipe, since the traditional sample gas collection interface adopts the connection method between the sampling pipe and the gas pipe, when the natural gas in the gas pipe needs to be collected, use the setting The gas pump in the gas pump generates suction in the sampling pipe, and sucks the natural gas in the gas pipe into the sampling pipe for subsequent energy analysis. However, when sampling natural gas in different periods, part of the sample gas collected in the previous period will always remain in the sampling pipe. , resulting in the collection of natural gas in the gas pipe in a later period, the natural gas collected in the two periods will be mixed together, resulting in an error in measuring the energy value of the natural gas in this period. A first telescopic piece and an impurity-removing element are arranged in the pipe. When the first telescopic element moves along the axial direction of the sampling pipe in the sampling pipe, it can drive the impurity-removing element to move in the sampling pipe, so that the collection of the previous period is left in the sampling pipe. The natural gas collected in the sampling pipe is discharged into the gas pipe, so as to achieve the purpose of removing impurities in the sampling pipe, which ensures that the natural gas collected into the sampling pipe in this period will not have the remaining natural gas in the previous period, thus ensuring that the natural gas measured in this period will not exist. Energy values are more accurate.

At the same time, when the natural gas in the gas pipe is actually collected, it will be encountered that the natural gas in the gas pipe is in a flowing state. When the natural gas flow rate in the gas pipe is fast, the natural gas collected before and after a certain period of time has a large span. The reasonable energy value of the gas pipe in this period cannot be accurately reflected. Therefore, in this technical solution, a blocking plate for blocking the gas pipe is also provided in the casing. After the natural gas for a certain period of time is discharged into the gas pipe, the impurity removing element can be inserted into the gas pipe. The blocking plate is inserted into the gas pipe, and the gas pipe is blocked, so that the natural gas in the gas pipe at this time stops flowing under the action of the blocking plate. Therefore, in the subsequent process of collecting the natural gas in the gas pipe, It can ensure that the collected natural gas has a small span before and after, thus ensuring that the natural gas collected during this period is within a reasonable range, and avoiding the large interval between the collected natural gas due to the natural gas circulating in the gas pipe, which eventually leads to the measurement of this period. The natural gas energy value is not accurate enough.

Further, a fixing rod is arranged in the sampling pipe, and one end of the fixing rod extends into the first telescopic piece, and the other end can extend into the gas pipe; A movable block and a second movable block, the first movable block and the second movable block are both sleeved on the fixed rod, and the movable end of the first telescopic piece is connected with the first movable block; the fixed rod is also provided with There is a vent hole for discharging the fluid in the sampling pipe, and the vent hole can be opened when the first movable block moves toward the direction of the second movable block.

In this technical solution, a first movable block and a second movable block are arranged in the existing sampling pipe, and both the first movable block and the second movable block can move along the axial direction of the sampling pipe in the sampling pipe, and a The fixed rods are respectively slidably connected with the first movable block and the second movable block. The fixed rod is also provided with an exhaust hole for discharging the fluid in the sampling pipe. When the natural gas in the gas pipe needs to be collected during this period, the first The movable block moves in the direction of the second movable block. Since the outer diameter of the first movable block is the same as the inner diameter of the sampling pipe, the first movable block can compress the natural gas remaining in the sampling pipe in the previous period during the movement, and is located in the fixed position. The exhaust hole on the rod is in the open state, so when the first movable block compresses the natural gas remaining in the sampling pipe, it can quickly discharge it from the exhaust hole into the gas pipe, thus realizing the collection of natural gas in the previous period. During the process, the natural gas remaining in the sampling pipe is discharged for the purpose.

When the natural gas in the gas pipe is collected, since the fixed rod can move in the sampling pipe along its axial direction, the first movable block and the second movable block are moved closer together to exhaust all the natural gas remaining in the sampling pipe. Then, use the set fixing rod to extend the first movable block and the second movable block that are close to each other into the gas pipe together, and then return the first movable block to the sampling pipe first. During the process of returning to the sampling pipe, the generated negative pressure can suck the natural gas in the gas pipe for this period of time into the sampling pipe, and realize the rapid collection of natural gas in this period. The second movable block is also returned to the sampling pipe, and the nozzle of the sampling pipe is blocked, which ensures that the natural gas in different periods can be accurately collected in the sampling pipe, so that the energy value of the natural gas measured in each period is more accurate.

Further, the first telescopic piece is also provided with a second telescopic piece, one end of the second telescopic piece is connected with the inner top surface of the first telescopic piece, and the other end is connected with the fixing rod; the first telescopic piece and the The second telescopic piece and the third telescopic piece are both bellows, the first telescopic piece is communicated with the third telescopic piece through a connecting pipe, and the first telescopic piece and the second telescopic piece are respectively connected to the pump body through an air pipe.

The provided first telescopic part is used to drive the normal movement of the first movable block in the sampling tube.

The provided second telescopic piece is used to drive the normal movement of the fixed rod in the sampling tube. The first telescopic piece, the second telescopic piece and the third telescopic piece set in this technical solution are all bellows pipes, which are connected to the casing through the air pipe. The pump body in the body is connected, and the first telescopic piece and the second telescopic piece are filled with gas by the provided pump body. Since the bellows can expand and stretch along its axial direction after being inflated, the first telescopic piece and the second telescopic piece are used. The two telescopic parts can respectively adjust the position of the first movable block and the fixed rod in the sampling pipe; at the same time, because the technical solution uses a connecting pipe to connect the first telescopic part and the third telescopic part, the initial state is in the direction of the first telescopic part. During internal ventilation, the blocking plate is in a locked state at this time, so the gas entering the first telescopic piece can preferentially force the first telescopic piece to collide in the sampling tube, drive the first movable block to move in the sampling tube, and move the upper The residual natural gas is discharged for a period of time, and when the fixed rod, the first movable block and the second movable block are inserted into the gas pipe together, the restriction of the stopper on the blocking plate is removed, so that the first telescopic block is filled to the The gas in the piece enters into the third telescopic piece through the connecting pipe, forcing the third telescopic piece to collide and stretch along its axial direction, and push the blocking plate into the gas pipe to realize the blocking of the gas pipe and prevent the gas inside the gas pipe. The natural gas collected during this period is for the purpose of plugging, thus ensuring a large span before and after the natural gas collected during this period.

Further, a channel is also provided in the fixing rod, one end of the channel is communicated with the exhaust hole, and the other end is communicated with the side wall of the fixing rod; the second movable block is provided with an inner diameter matching the outer diameter of the fixing rod. A connecting hole, the fixing rod is inserted into the connecting hole, the inner wall of the connecting hole is provided with a first accommodating cavity, and the first accommodating cavity is provided with a first elastic member and a blocking block, and the first elastic member produces The elastic force can push the blocking block into the channel and block the channel.

In order to ensure that when the first telescopic element drives the first movable block to move in the direction of the second movable block, the exhaust hole close to the lower end of the fixing rod can be opened, and at the same time, it is also ensured that the first movable block moves away from the second movable block. During the movement of the second movable block in the direction, the exhaust hole is in a blocked state, so a channel with an inverted "T" structure is set in the fixed rod. The upper end of the channel is in communication with the exhaust hole, while the other two The ends are respectively communicated with both sides of the fixed rod. When the blocking block on the inner wall of the connecting hole of the second movable block is flush with the channel, under the action of the first elastic member, the blocking block is pushed into the channel, and the channel is adjusted. Blocking, so as to achieve the blocking of the exhaust hole.

When the first movable block moves toward the second movable block, the first movable block compresses the natural gas remaining in the sampling pipe, forcing the natural gas to enter the channel through the exhaust hole, and acts on the seal in the channel. The blocking block, as the pressure generated by the first movable block in the process of moving gradually increases, when the pressure is greater than the elastic force of the first elastic member, the blocking block is forced to compress the first elastic member and retract to the first accommodating cavity Inside, the fixed rod at this time removes the constraining force of the blocking block on it, and the second telescopic part is a bellows. When the first movable block moves in the sampling pipe, the air pressure generated by compressing the natural gas can force the fixed rod to take the initiative. Moving towards the gas pipe, the channel on the fixing rod is dislocated from the first accommodating cavity, and finally the passages on both sides of the fixing rod are extended into the gas pipe to realize the communication between the gas pipe and the exhaust hole, thereby making the The natural gas remaining in the sampling pipe can finally enter into the gas pipe through the exhaust hole and the channel in sequence, and the gas remaining in the sampling pipe sampled in the previous period is discharged.

When the first movable block and the second movable block are close together, the exhaust hole is blocked under the action of the first movable block. At this time, under the action of the second telescopic piece, the fixing rod can be pulled toward the When the channel on the fixed rod is retracted to be flush with the blocking block, under the action of the first elastic member, the blocking block is reinserted into the channel, and the second movable block is re-fixed on the fixed rod , to ensure that the exhaust hole is in a closed state.

Further, the limiting member includes a locking member and an L-shaped connecting plate; the gas pipe is a square pipe, and the gas pipe is provided with a guide hole and a bar-shaped port matching the blocking plate, and the bar-shaped port and the guide The holes are all communicated with the inside of the gas pipe, the blocking plate can be inserted into the gas pipe through the bar-shaped port and block the gas pipe, the side wall of the blocking plate is also provided with a limit hole; one end of the connecting plate is It is connected with the end of the fixing rod facing the direction of the gas pipe, and the other end can be inserted into the guide hole. The inner wall of the bar-shaped mouth is provided with a limit cavity that communicates with the guide hole, and the locking member is located in the limit cavity. And when the connecting plate is inserted into the guide hole, the connecting plate can push the locking member to be inserted into the limiting hole on the blocking plate.

In the initial state, when the set fixing rod does not extend into the gas pipe, the L-shaped connecting plate set at this time is inserted into the guide hole, forcing the locking member located in the limit cavity to be inserted into the limit hole on the blocking plate Inside, the blocking plate is fixed; and after the fixing rod is inserted into the gas pipe, the set connecting plate moves with the fixing rod, so that the connecting plate moves out of the limit hole, and the binding force on the blocking plate is removed. , so that the third telescopic piece can push the blocking plate to be inserted into the gas pipe to block the gas pipe.

Further, the locking piece includes a first limit block, a second limit block and a fourth elastic piece, and the first limit block, the second limit block and the fourth elastic piece are all located in the limit cavity , and the two ends of the fourth elastic member are respectively connected with the first limit block and the second limit block, the second limit block can be inserted into the limit hole; the first limit block is square toward the guide hole The end is also provided with a beveled edge.

Specifically, in the initial state, since the connecting plate is inserted into the guide hole, a pressing force is generated on the first limit block, which forces the first limit block to compress the fourth elastic member, and pushes the second limit block to be inserted into the block. In the limiting hole of the plate, the blocking plate is fixed; and when the connecting plate moves with the fixing rod and moves out of the guide hole, under the action of the fourth elastic member, the first limiting block can be pushed from the limiting block. The position cavity is moved into the guide hole, and at the same time, the second limit block is pulled out of the limit hole of the blocking plate, thereby removing the constraint on the blocking plate; and when the fixing rod drives the connecting plate to re-insert into the guide hole , the end of the connecting plate acts on the hypotenuse of the first limit block, forcing the first limit block to move from the guide hole to the limit cavity again, and exerts pressure on the fourth elastic piece, while the fourth elastic piece In the process of applying elastic force to the second limit block, and the third retractable member pulls the blocking plate to return to the housing, when the limit hole on the blocking plate moves to be flush with the second limit block, the fourth elastic Under the action of the moving parts, push the second limit block to re-insert into the limit hole, and continue to fix the blocking plate.

The casing is also provided with a fixing plate, one end of the third telescopic piece is sealed with the fixing plate, and the other end is sealed with the blocking plate; a placement groove is also provided on the inner wall of the gas pipe, and the placement groove is A fifth elastic piece is also provided, one end of the fifth elastic piece is connected with the inner bottom of the placing groove, and the other end is connected with the end of the blocking plate facing the gas pipe.

The provided fixing plate is used for fixing the third telescopic piece, so as to ensure that the third telescopic piece can only be stretched in the direction of the blocking plate after inflating the inside thereof.

In order to improve the response speed of the blocking plate, a fifth elastic member is provided. When the limiting member fixes the blocking plate, the fifth elastic member is in a stretched state. Therefore, when the limiting member is unlocked, the fifth elastic member is in a stretched state. Then, under the action of the fifth elastic member, the blocking plate can be pulled to quickly block the gas pipe.

Further, a second accommodating cavity is also provided on both sides of the inner wall of the sampling tube, and the second accommodating cavity is provided with a second elastic member and a limit block; both sides of the second movable block are provided with There is a third accommodating cavity, when the third accommodating cavity on the second movable block moves to be flush with the second accommodating cavity, the elastic force generated by the second elastic member can push the limiting block to be inserted into the third accommodating cavity.

In this technical solution, when the exhaust hole needs to be connected to the gas pipe, the second movable block needs to be separated from the fixed rod, and at the same time, the second movable block needs to be fixed with the inner wall of the sampling pipe, so as to ensure that the fixed rod can be smoothly The second movable block moves up, therefore, a second elastic member and a limit block are arranged on the inner wall of the sampling tube, and the elastic force generated by the second elastic member is used to push the limit block to be inserted into the third accommodating cavity of the second movable block , realizing the fixation between the second movable block and the adopting tube.

Further, the end of the first movable block facing the direction of the second movable block is provided with a first unlocking block, the end of the first unlocking block facing the direction of the second movable block is provided with a gap, and the gap is provided with a third unlocking block. an elastic piece and a second unlocking block; the end face of the second movable block facing the direction of the first movable block is provided with a groove, the first unlocking block can be inserted into the groove, and the groove is communicated with the third accommodating cavity; The elastic force of the third elastic member is greater than that of the second elastic member.

When the natural gas in the gas pipe needs to be sampled, in order to ensure that the second movable block can be separated from the adopting pipe smoothly, the first movable block is also provided with a first unlocking block, a third elastic member and a second unlocking block. When the first movable block and the second movable block are close together, the first unlocking block on the first movable block can be inserted into the groove on the second movable block, and when the first movable block and the second movable block are completely close together , the set second unlocking block is flush with the limiting block, and under the action of the third elastic member, the second unlocking block is used to push the limiting block back into the second accommodating cavity, so that the second The removal of the movable block constraint enables the second movable block to move smoothly in the sampling tube following the fixed rod.

Further, the limiting block and the second unlocking block are both conical structures, and the cone tips of the limiting block and the second unlocking block face each other.

Since the provided second unlocking block needs to return the limiting block to the second accommodating cavity, when the first movable block moves back in the direction away from the second movable block, in order to ensure the second unlocking located in the third accommodating cavity The block can be smoothly removed from the groove of the second movable block, so the second unlocking block is set to a conical structure, so that the second unlocking block is used to force the second unlocking block during the upward movement process. The block can be retracted toward the direction of the third elastic piece, so that the second unlocking block can smoothly pass through the groove;

Similarly, when the first unlocking block on the first movable block is inserted into the groove, the upper surface of the second movable block acts on the conical surface of the second unlocking block, forcing the second unlocking block to compress the third elastic member, So that it can be inserted into the groove smoothly.

When the fixed rod drives the second movable block and the first movable block to extend into the gas pipe together, when the first movable block and the second movable block need to be returned to the sampling pipe in turn, in order to ensure the first movable block and the second movable block The movable block can pass through the limit block smoothly, so the limit block is also set into a conical structure, and the second movable block and the first movable block are used to act on the conical surface of the limit block, so that the limit block is retracted to the second in the receiving cavity.

A synchronous computing natural gas energy metering Internet of Things system, including a user platform, a service platform, a management platform, a sensor network platform and a sensor control platform that interact in sequence;

The perception control platform is the above-mentioned natural gas energy metering device, and the perception control platform transmits the acquired perception information to the management platform through the sensor network platform; the management platform includes an energy metering management system, and the The energy metering management system comprehensively analyzes and processes the received perception information, transmits user demand information to the user platform through the service platform, and issues control instructions to the perception control platform through the sensor network platform.

Compared with the prior art, the present invention has the following advantages and beneficial effects:

1. The present invention realizes the integrated design of the natural gas energy metering device, the parameters of each functional module are well matched, and the metering is more accurate; the integrated design is conducive to improving the purchasing efficiency of customers, and at the same time improving the efficiency of equipment management, and at the same time, it can realize the measurement device and management. The platform measures the natural gas energy synchronously, and realizes the intelligent management and operation of natural gas energy measurement by establishing the Internet of Things operation system;

2. When the present invention collects the natural gas in the gas pipe, the first movable block can be driven to move in the sampling pipe by the first telescopic member, and the natural gas remaining in the sampling pipe in the previous period can be quickly exhausted from the fixed rod. The hole is discharged into the gas pipeline, and then the second movable block is inserted into the gas pipe from the nozzle of the sampling pipe, and the natural gas in this period is pumped into the sampling pipe by the negative pressure generated when the first movable block is moved back. This ensures that the natural gas in different time periods can be accurately collected in the sampling pipe, thereby making the energy value of natural gas measured in each time period more accurate;

3. In the present invention, in the process of using the first movable block to discharge the natural gas remaining in the sampling pipe, the compressed natural gas enters the channel and acts on the blocking block, forcing the blocking block to move out of the channel, thereby making the fixed rod. It can extend into the gas pipe and connect the exhaust hole with the gas pipe, so as to realize the purpose of quickly discharging the natural gas remaining in the sampling pipe. The exhaust hole is blocked, and the stable connection between the second movable block and the fixed rod is ensured;

4. When the present invention collects the natural gas in the gas pipe, the third telescopic piece can be used to drive the plugging plate to be inserted into the gas pipe to temporarily block the gas pipe, so that the natural gas collected during this period has a longer front and rear span. This ensures that the collected natural gas is within a reasonable range, and further improves the accuracy of measuring the energy value of natural gas during this period.

Description of drawings

The accompanying drawings described herein are used to provide further understanding of the embodiments of the present invention, and constitute a part of the present application, and do not constitute limitations to the embodiments of the present invention. In the attached image:

Fig. 1 is the structural representation of the present invention;

2 is a schematic diagram of the internal structure of the housing of the present invention;

3 is a schematic structural diagram of the interior of the casing of the present invention in one state;

4 is a schematic structural diagram of the inside of the casing of the present invention in another state;

Fig. 5 is the enlarged structural schematic diagram of part A in Fig. 2 of the present invention;

Fig. 6 is the enlarged structural schematic diagram of part B in Fig. 3 of the present invention;

Fig. 7 is the enlarged structural schematic diagram of C part in Fig. 4 of the present invention;

Fig. 8 is the enlarged structural schematic diagram of part D in Fig. 6 of the present invention;

Fig. 9 is the enlarged structural schematic diagram of E part in Fig. 3 of the present invention;

FIG. 10 is a schematic diagram of the system architecture in the third embodiment.

The marks in the attached drawings and the corresponding parts names:

1-Housing, 2-Gas pipe, 3-Sampling pipe, 4-Air pump, 5-First telescopic piece, 7-First movable block, 8-Fixed rod, 9-Exhaust hole, 10-Second movable block , 11-channel, 12-first elastic piece, 13-blocking block, 14-groove, 15-second telescopic piece, 16-second elastic piece, 17-limiting block, 18-blocking plate, 19 -Third telescopic part, 20-Fifth elastic part, 21-Second unlocking block, 22-Third elastic part, 23-First unlocking block, 24-Connecting pipe, 25-Fixing plate, 26-Connecting plate, 27 - The first limit block, 28 - the second limit block, 29 - the fourth elastic piece.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the embodiments and the accompanying drawings. as a limitation of the present invention.

Example 1

As shown in FIG. 1 , the present invention includes a casing 1, and a data preprocessing module and an energy calculation module are arranged in the casing 1. The data preprocessing module is used for data classification and storage of the sensing information of natural gas, and The sensing information is transmitted to the energy calculation module; the energy calculation module calculates the natural gas instantaneous working condition flow through the sensing information transmitted by the data preprocessing module, so as to realize the conversion to the instantaneous standard condition flow and the calculation of the standard condition flow in the set time period, And through the data preprocessing module, the unit calorific value of natural gas corresponding to the standard flow rate is matched, and the natural gas energy measurement is realized by the product of the two.

It also includes a flow sensor, a pressure sensor and a temperature sensor arranged in the housing 1, the flow sensor, the pressure sensor and the temperature sensor are used to collect the sensing information of the natural gas (respectively corresponding to the flow, pressure and temperature information of the collected natural gas), and The collected perceptual information is transmitted to the data preprocessing module; it also includes a touch display screen and a communication module arranged in the housing 1, the touch screen display is respectively connected with the data preprocessing module and the energy calculation module, and the communication module The modules are respectively connected with the energy calculation module and the data preprocessing module, and the communication module is also connected with the gateway outside the device to realize the external communication of the device.

Obtain the instantaneous flow information of natural gas through the flow sensor and transmit it to the data preprocessing module; obtain the real-time pressure information of natural gas through the pressure sensor and transmit it to the data preprocessing module; obtain the real-time temperature information of natural gas through the temperature sensor and transmit it to the data preprocessing module .

It also includes a calorific value analysis and processing module arranged in the housing 1, the output end of the calorific value analysis and processing module is connected to the data preprocessing module, and the input end of the calorific value analysis and processing module is provided with a sample gas processing system and a standard. A gas processing system, the input end of the sample gas processing system is provided with a sample gas controller, the input end of the sample gas controller is also provided with a sample gas collection interface, and the sample gas controller is connected with the gas pump 4; the standard gas The input end of the processing system is provided with a standard gas collection interface.

The natural gas sample gas enters the calorific value analysis and processing module through the sample gas collection interface, the sample gas controller, and the sample gas processing system in turn. The heat information is sent to the data preprocessing module.

The sensing information is preprocessed by data classification, storage, and transmission through the data preprocessing module; the data preprocessing module is electrically connected to the energy calculation module, the touch display screen, the communication module, and the calorific value analysis and processing module to realize two-way communication.

The energy calculation module obtains sensory information such as natural gas flow, pressure, temperature, etc. through the data preprocessing module, calculates the instantaneous working condition flow, and realizes the conversion to the instantaneous standard condition flow and the calculation of the standard condition flow within the set time period.

The energy calculation module matches the unit calorific value of natural gas corresponding to the standard condition flow rate through the data preprocessing module, and realizes the natural gas energy measurement by multiplying the standard condition flow rate and the unit calorific value of natural gas corresponding to the standard condition flow rate within the set time period.

In addition, the standard gas can be collected through the standard gas collection interface and the standard gas processing system and entered into the calorific value analysis and processing module. , to realize the calibration of the calorific value analysis and processing module.

The touch display screen is electrically connected with the data preprocessing module and the energy calculation module respectively to realize two-way communication. The data preprocessing module sends the natural gas working condition pressure, temperature, sample gas calorific value and other information to the touch screen, and the energy calculation module sends the natural gas working condition flow, standard flow, energy and other information to the touch screen. The control display screen realizes the display and monitoring of the above information at the on-site end; it is also possible to operate the touch screen display on site to send relevant control commands to the data preprocessing module and the energy calculation module respectively to adjust the parameters within the authority.

The data preprocessing module can also send the sensing information such as the working condition pressure, temperature, sample gas calorific value, etc. of the natural gas directly to the system management platform through the sensor network platform through the communication module of the device. Synchronous metering of metering device and management platform.

The energy metering device of this technical solution adopts an integrated design, and sets each functional module in the housing 1. The parameters of each functional module are well matched and the measurement is more accurate, which is not only conducive to improving customer procurement efficiency, but also improving equipment management efficiency. .

At the same time, the synchronous calculation method between each module can improve the measurement efficiency of the metering device, can quickly measure the natural gas energy value, and can also realize the synchronous measurement of natural gas energy by the object platform and the management platform.

Example 2

As shown in FIG. 2 to FIG. 9 , on the basis of Embodiment 1, the sample gas collection interface further includes a sampling pipe 3 arranged in the casing 1 and communicating with the gas pipe 2 , and the outer wall of the sampling pipe 3 is There is also an air pump 4 communicating with the sampling pipe 3, the air pump 4 is connected with the sample gas controller, and the sample gas controller is connected with the sample gas processing system. The movable end of the telescopic piece 5 is provided with an impurity-removing element for discharging the fluid in the sampling pipe 3; it also includes a third telescopic piece 19 arranged in the casing 1, and the movable end of the third telescopic piece 19 is provided with The blocking plate 18 blocked by the pipe 2, the gas pipe 2 is also provided with a limiting member for fixing the blocking plate 18. When the impurity removing element extends into the gas pipe 2, the limiting member can be removed Fixing of the blocking plate 18.

For the natural gas energy metering device in the prior art, when measuring the natural gas in the gas pipe, since the traditional sample gas collection interface adopts the connection method between the sampling pipe and the gas pipe, when the natural gas in the gas pipe needs to be collected, use the setting The gas pump in the gas pump generates suction in the sampling pipe, and sucks the natural gas in the gas pipe into the sampling pipe for subsequent energy analysis. However, when sampling natural gas in different periods, part of the sample gas collected in the previous period will always remain in the sampling pipe. , resulting in the collection of natural gas in the gas pipe in a later period, the natural gas collected in the two periods will be mixed together, resulting in an error in measuring the energy value of the natural gas in this period. A first telescopic element 5 and an impurity removing element are arranged in the pipe 3. When the first telescopic element 5 moves in the sampling pipe 3 along the axial direction of the sampling pipe 3, the impurity removing element can be driven to move in the sampling pipe 3, thereby removing the impurities. The natural gas remaining in the sampling pipe 3 collected in the previous period is discharged into the gas pipe 2, so as to achieve the purpose of removing impurities in the sampling pipe 3, thus ensuring that the natural gas collected in the sampling pipe 3 in this period does not exist on the gas pipe 2. The remaining natural gas in a period of time ensures that the energy value of natural gas measured in this period is more accurate.

At the same time, when the natural gas in the gas pipe 2 is actually collected, the natural gas in the gas pipe 2 will be in a flowing state. Natural gas has a large span and cannot accurately reflect the reasonable energy value of the gas pipe in this period. Therefore, in this technical solution, a blocking plate 18 for blocking the gas pipe 2 is also provided in the casing. After the impurity element discharges the natural gas in the sampling pipe 3 in the previous period into the gas pipe 2, the impurity removing element is inserted into the gas pipe 2, and the impurity removing element can remove the restriction of the stopper on the blocking plate 18, so that the impurity removing element can be removed. Under the action of the third telescopic element 19 , the blocking plate 18 can be driven to be inserted into the gas pipe 2 and block the gas pipe 2 , so that the natural gas in the gas pipe 2 at this time is under the action of the blocking plate 18 Therefore, in the subsequent process of collecting the natural gas in the gas pipe 2, it can be ensured that the front and back span of the collected natural gas is not large, so as to ensure that the natural gas collected during this period is within a reasonable range, avoiding the The natural gas circulating in the gas pipe 2 results in a large interval between the natural gas collected before and after, which eventually leads to the inaccuracy of the natural gas energy value measured in this period.

Further, the sampling pipe 3 is provided with a fixing rod 8, one end of the fixing rod 8 extends into the first telescopic member 5, and the other end can extend into the gas pipe 2; the impurity removal element includes an outer diameter The first movable block 7 and the second movable block 10 matching the inner diameter of the sampling tube 3 are both sleeved on the fixed rod 8, and the movable end of the first telescopic member 5 It is connected with the first movable block 7; the fixing rod 8 is also provided with an exhaust hole 9 for discharging the fluid in the sampling pipe 3. When the first movable block 7 moves towards the direction of the second movable block 10, the The vent hole 9 can be opened.

In this technical solution, a first movable block 7 and a second movable block 10 are provided in the existing sampling tube 3 , and both the first movable block 7 and the second movable block 10 can be arranged in the sampling tube 3 along the axial direction of the sampling tube 3 . moving, and a fixed rod 8 slidably connected to the first movable block 7 and the second movable block 10 is also provided in the sampling pipe 3, and the fixed rod 8 is also provided with an exhaust hole 9 for discharging the fluid in the sampling pipe 3 , when it is necessary to collect the natural gas in the gas pipe 2 during this period, first move the first movable block 7 towards the direction of the second movable block 10. Since the outer diameter of the first movable block 7 is the same as the inner diameter of the sampling pipe 3, the first movable block 7 is During the movement of a movable block 7, it can compress the natural gas remaining in the sampling pipe 3 for a period of time, and at the same time, the exhaust hole 9 located on the fixed rod 8 is in an open state, so the first movable block 7 can compress the residual natural gas before sampling. When the natural gas in the pipe 3 is removed, it can be quickly discharged into the gas pipe 2 from the exhaust hole 9, thereby realizing the purpose of discharging the natural gas remaining in the sampling pipe 3 during the natural gas collection process in the previous period.

When the natural gas in the gas pipe 2 is collected, the fixed rod 8 can move in the sampling pipe 3 along its axial direction. Therefore, when the first movable block 7 and the second movable block 10 are moved closer together, there will be residues in the sampling pipe 3 . After all the natural gas in the sampling pipe 3 is exhausted, the first movable block 7 and the second movable block 10 located close to the fixed rods 8 are extended into the gas pipe 2 by using the fixed rods 8 provided, and then The first movable block 7 is retracted into the sampling pipe 3, and in the process of returning the first movable block 7 to the sampling pipe 3, the negative pressure generated can suck the natural gas in the gas pipe 2 during the period into the sampling pipe 3, so as to realize In order to quickly collect natural gas in this period, at the same time, when the natural gas collection in this period is completed, the second movable block 10 is also returned to the sampling pipe 3, and the nozzle of the sampling pipe 3 is blocked, which ensures that the The natural gas in different time periods can be accurately collected in the sampling pipe 3, so that the energy value of the natural gas measured in each time period is more accurate.

It also includes a first telescopic piece 5 arranged in the sampling tube 3, one end of the first telescopic piece 5 is connected with the inner wall of the housing 1, and the other end is connected with the first movable block 7 along the axial direction of the sampling tube 3; the fixed The rod 8 is inserted into the first telescopic element 5 along the axial direction of the first telescopic element 5 .

The provided first telescopic member 5 is used to drive the normal movement of the first movable block 7 in the sampling tube 3 .

The first telescopic element 5 is also provided with a second telescopic element 15, one end of the second telescopic element 15 is connected with the inner top surface of the first telescopic element 5, and the other end is connected with the fixing rod 8; The first telescopic element 5 is connected to the third telescopic element 19 through the connecting pipe 24, and the first telescopic element 5 and the second telescopic element 15 pass through the The air pipe is connected with the pump body.

The provided second telescopic piece 15 is used to drive the normal movement of the fixed rod 8 in the sampling tube 3. The first telescopic piece 5 and the second telescopic piece 15 provided in this technical solution are both bellows pipes, which pass through the air pipe and are connected to the sampling tube 3. The pump body in the casing is connected, and the first telescopic piece 5 and the second telescopic piece 15 are filled with gas by the provided pump body. Since the bellows can expand and stretch along its axial direction after being inflated, the first telescopic piece 15 can be expanded and stretched by using the provided first telescopic piece. The component 5 and the second telescopic component 15 can respectively adjust the positions of the first movable block 7 and the fixed rod 8 in the sampling tube 3 .

At the same time, since this technical solution uses the connecting pipe 24 to connect the first telescopic element 5 with the third telescopic element 19 , when the first telescopic element 5 is ventilated in the initial state, the blocking plate 18 is in a locked state at this time, so The gas entering the first telescopic element 5 can preferentially force the first telescopic element 5 to collide in the sampling pipe 3, drive the first movable block 7 to move in the sampling pipe 3, and discharge the natural gas remaining in the previous period, and when When the fixed rod 8 , the first movable block 7 and the second movable block 10 are extended into the gas pipe 2 together, the restriction of the stopper on the blocking plate 18 is removed, so that the first telescopic element 5 is filled The gas enters into the third telescopic member 19 through the connecting pipe 24, forcing the third telescopic member 19 to collide and stretch along its axial direction, and push the blocking plate 18 into the gas pipe 2 to realize the sealing of the gas pipe 2. Blocking, the purpose of blocking the natural gas in the gas pipe 2, thus ensuring that the natural gas collected during this period has a large front and rear span.

The fixing rod 8 is also provided with a channel 11, one end of the channel 11 is communicated with the exhaust hole 9, and the other end is communicated with the side wall of the fixing rod 8; the second movable block 10 is provided with an inner diameter and the fixing rod 8 A connecting hole with a matching outer diameter, the fixing rod 8 is inserted into the connecting hole, the inner wall of the connecting hole is provided with a first accommodating cavity, and the first accommodating cavity is provided with a first elastic member 12 and a blocking block 13, The elastic force generated by the first elastic member 12 can push the blocking block 13 to be inserted into the channel 11 and block the channel 11 .

In order to ensure that when the first telescopic member 5 drives the first movable block 7 to move toward the second movable block 10, the exhaust hole 9 close to the lower end of the fixed rod 8 can be opened, and at the same time to ensure that the first movable block 7 is moved toward the second movable block 10. When the block 7 moves away from the second movable block 10, the exhaust hole 9 is in a blocked state, so the fixed rod 8 is provided with a channel 11 with an inverted "T" structure. The air hole 9 is in a connected state, and the other two ends of the channel 11 are connected to both sides of the fixed rod 8 respectively. When the blocking block 13 on the inner wall of the connecting hole of the second movable block 10 is flush with the channel 11, the first elastic The blocking block 13 is pushed to be inserted into the channel 11 under the action of the component 12 to block the channel 11 , thereby realizing the blocking of the exhaust hole 9 .

When the first movable block 7 moves toward the second movable block 10, the first movable block 7 compresses the natural gas remaining in the sampling pipe 3, forcing the natural gas to enter the channel 11 through the exhaust hole 9, and The blocking block 13 acting on the channel 11 gradually increases with the pressure generated by the first movable block 7 during the movement. When the pressure is greater than the elastic force of the first elastic member 12, the blocking block 13 is forced to compress the first block 13. An elastic member 12 is retracted into the first accommodating cavity. At this time, the fixing rod 8 removes the restraining force of the blocking block 13 on it, and the second telescopic member 15 is a corrugated tube. When the first movable block 7 is in the The air pressure generated by the compressed natural gas during the movement of the sampling pipe 3 can force the fixed rod 8 to actively move toward the gas pipe 2, and cause the channel 11 on the fixed rod 8 to be dislocated from the first accommodating cavity, and finally the two fixed rods 8 are displaced. The channel 11 on the side extends into the gas pipe 2, realizing the communication between the gas pipe 2 and the exhaust hole 9, so that the natural gas remaining in the sampling pipe 3 can finally enter the gas pipe through the exhaust hole 9 and the channel 11 in sequence. 2, discharge the gas remaining in the sampling tube 3 sampled in the previous period.

When the first movable block 7 and the second movable block 10 are close together, under the action of the first movable block 7, the exhaust hole 9 is blocked. The fixing rod 8 can be pulled back and retracted. When the channel 11 on the fixing rod 8 is retracted to be flush with the blocking block 13, the blocking block 13 is reinserted into the channel 11 under the action of the first elastic member 12. , the second movable block 10 is re-fixed on the fixed rod 8 to ensure that the exhaust hole 9 is in a closed state.

A second accommodating cavity is also provided on both sides of the inner wall of the sampling tube 3, and the second accommodating cavity is provided with a second elastic member 16 and a limit block 17; both sides of the second movable block 10 are provided. A third accommodating cavity is provided. When the third accommodating cavity on the second movable block 10 moves to be flush with the second accommodating cavity, the elastic force generated by the second elastic member 16 can push the limiting block 17 to be inserted into the third accommodating cavity. .

In this technical solution, when the exhaust hole 9 needs to be communicated with the gas pipe 2, the second movable block 10 needs to be separated from the fixed rod 8, and the second movable block 10 also needs to be fixed with the inner wall of the sampling pipe 3, so that the To ensure that the fixed rod 8 can move smoothly on the second movable block 10, a second elastic member 16 and a limit block 7 are arranged on the inner wall of the sampling tube 3, and the limit block is pushed by the elastic force generated by the second elastic member 16. 7 is inserted into the third accommodating cavity of the second movable block 10 to realize the fixation between the second movable block 10 and the adopting tube 3 .

The end of the first movable block 7 facing the second movable block 10 is provided with a first unlocking block 23 , the end of the first unlocking block 23 facing the second movable block 10 is provided with a gap, and the gap is provided with a gap. The third elastic member 22 and the second unlocking block 21; the end face of the second movable block 10 facing the first movable block 7 is provided with a groove 14, and the first unlocking block 21 can be inserted into the groove 14, and The groove 14 communicates with the third accommodating cavity; the elastic force of the third elastic member 22 is greater than that of the second elastic member 16 .

When the natural gas in the gas pipe 2 needs to be sampled, in order to ensure that the second movable block 10 can be separated from the adopting pipe 3 smoothly, the first movable block 7 is also provided with a first unlocking block 23 and a third elastic member 22 and the second unlocking block 21, when the first moving block 7 is close to the second moving block 10, the first unlocking block 23 on the first moving block 7 can be inserted into the groove 14 on the second moving block 10, and the When the first movable block 7 and the second movable block 10 are completely close together, the second unlocking block 21 is set flush with the limiting block 17 , and under the action of the third elastic member 22 , the second unlocking block 21 is used to lock the limiting block 21 . The position block 17 is pushed back into the second accommodating cavity, realizing the removal of the restraint of the second movable block 10 by the position block 17 , so that the second movable block 10 can smoothly follow the fixed rod 8 to move in the sampling tube 3 .

The limiting block 17 and the second unlocking block 21 are both conical structures, and the conical tips of the limiting block 17 and the second unlocking block 21 face each other.

Since the provided second unlocking block 21 needs to return the limiting block 17 to the second accommodating cavity, when the first movable block 7 moves back in the direction away from the second movable block 10, in order to ensure that it is located in the third accommodating cavity The second unlocking block 21 can be moved out of the groove 14 of the second movable block 10 smoothly, so the second unlocking block 21 is set as a conical structure, so that the second unlocking block 21 is moved upwards. The tapered surface of the unlocking block 21 forces the second unlocking block 21 to retract toward the third elastic member 22, so that the second unlocking block 21 can smoothly pass through the groove 14;

Similarly, when the first unlocking block 23 on the first movable block 7 is inserted into the groove 14, the upper surface of the second movable block 10 acts on the conical surface of the second unlocking block 21, forcing the second unlocking block 21 The third elastic member 22 is compressed so as to be smoothly inserted into the groove 14 .

When the fixed rod 8 drives the second movable block 10 and the first movable block 7 to extend into the gas pipe 2 together, the first movable block 7 and the second movable block 10 need to be returned to the sampling pipe 3 in turn. In order to ensure that the first movable block 7 and the second movable block 10 can pass the limit block 17 smoothly, the limit block 17 is also set into a conical structure, and the second movable block 10 and the first movable block 7 are used to act on the limit. the conical surface of the block 17, so that the limiting block 17 is retracted into the second accommodating cavity.

In the process of using the first movable block 7 to discharge the natural gas collected in the sampling pipe 3 in the previous period, when the first movable block 7 and the second movable block 10 are completely close to each other, although the natural gas in the sampling pipe 3 is completely Although the miscellaneous gas is completely exhausted, a part of the miscellaneous gas still stays in the exhaust hole 9 and the channel 11, and this part of the miscellaneous gas cannot be exhausted. The negative pressure generated in the process of moving will preferentially collect the miscellaneous gas remaining in the exhaust hole 9 and the channel 11 into the sampling pipe, which affects the sampling accuracy. Direction valve (not shown in the figure), so that in the process of discharging the miscellaneous gas in the sampling pipe 3, the gas in the sampling pipe 3 can only enter the gas pipe 2 through the exhaust hole 9 and the channel 11 through the one-way valve in turn. In order to realize the discharge of miscellaneous gas, and when it is necessary to collect natural gas, first move the fixed rod 8 back, use the blocking block 13 to re-block the channel 11, and then connect the first movable block 7 and the second movable block 7. The movable block 10 extends into the gas pipe 2 together, because the blocking block 13 on the second movable block 10 blocks the passage 11, and under the action of the one-way valve located at the exhaust hole 9, at this time The channel 11 and the exhaust hole 9 are in a blocked state, so the gas remaining in the channel 11 and the exhaust hole 9 cannot be sucked into the sampling pipe 3 during the process of the first movable block 7 returning to the sampling pipe 3 , while the natural gas in the gas pipe 2 in this period is quickly sucked into the sampling pipe 3, which realizes the rapid sampling of the natural gas in a certain period.

In addition, in this technical solution, the first movable block 7 and the second movable block 10 are inserted into the gas pipe 2 together. Compared with the channel 11 , the diameter of the natural gas entering the gas pipe 3 is enlarged, and the collection efficiency of natural gas is improved.

At the same time, in this technical solution, when the gas in the pipe 3 is passed into the exhaust hole 9, under the action of the air pressure, the blocking block 13 in the channel 11 is forced to retract into the first accommodating cavity, so that the fixed The rod 8 can extend into the gas pipe 2 to connect the channel 11 with the gas pipe 2, and after the exhaust is completed, the fixed rod 8 can be moved back again, and the blocking block 13 is used to block the channel 11 on the one hand. Blocking, the other side can re-fix the second movable block 10 with the fixed rod 8 to ensure that the second movable block 10 can be inserted into the gas pipe 2 along with the fixed rod 8. The reason why this technical solution adopts the above method , because there are certain solid impurities in the natural gas in some gas pipes 2, such as sediment and rock particles, if the channel 11 is always in the state of communication with the gas pipe 2 during the use process, after a long time, the solid in the natural gas will Impurities easily enter the channel 11, which is easy to cause blockage of the channel 11, resulting in the subsequent failure to discharge the miscellaneous gas in the sampling tube 3 through the channel 11. Therefore, this technical solution needs to discharge the miscellaneous gas in the sampling tube 3. At this time, the fixing rod 8 can automatically extend into the gas pipe 2 to realize the communication between the gas pipe 2 and the channel 11. After the exhaust gas is completed, the fixing rod 8 can be retracted to remove the channel 11 from the gas pipe 2. It is retracted into the second movable block 10, so as to avoid the situation that the channel 11 is always exposed in the gas pipe 2, which may easily cause the channel 11 to be blocked for a long time.

The limiting member includes a locking member and an L-shaped connecting plate 26; the gas pipe 2 is a square pipe, and the gas pipe 2 is provided with a guide hole, a bar-shaped port matching the blocking plate 18, and the bar-shaped port and The guide holes are all communicated with the inside of the gas pipe 2. The blocking plate 18 can be inserted into the gas pipe 2 through the strip opening and block the gas pipe 2. The side wall of the blocking plate 18 is also provided with a limit One end of the connecting plate 26 is connected to the end of the fixing rod 8 facing the direction of the gas pipe 2, and the other end can be inserted into the guide hole. The locking member is located in the limiting cavity, and when the connecting plate 26 is inserted into the guide hole, the connecting plate 26 can push the locking member to be inserted into the limiting hole on the blocking plate 18 .

In the initial state, when the set fixing rod 8 does not extend into the gas pipe 2, the L-shaped connecting plate 26 set at this time is inserted into the guide hole, forcing the locking member located in the limiting cavity to be inserted into the blocking plate 18 In the limiting hole above, the blocking plate 18 is fixed; and after the fixing rod 8 is extended into the gas pipe 2, the connecting plate 26 provided moves with the fixing rod 8, so that the connecting plate 26 is removed from the limiting hole. When removed, the binding force on the blocking plate 18 is removed, so that the third telescopic element 19 can push the blocking plate 18 to be inserted into the gas pipe 2 to block the gas pipe 2 .

Further, the locking member includes a first limit block 27 , a second limit block 28 and a fourth elastic member 29 . The first limit block 27 , the second limit block 28 and the fourth elastic member 29 are located in the limit cavity, and the two ends of the fourth elastic member 29 are respectively connected with the first limit block 27 and the second limit block 28, and the second limit block 28 can be inserted into the limit hole; so The first limiting block 27 is further provided with a beveled edge toward the square end of the guide hole.

Specifically, in the initial state, since the connecting plate 26 is inserted into the guide hole, a pressing force is generated on the first limit block 27, forcing the first limit block 27 to compress the fourth elastic member 29, and pushes the second limit block 28 is inserted into the limiting hole of the blocking plate 18 to realize the fixing of the blocking plate 18; and when the connecting plate 26 moves with the fixing rod 8 and moves out of the guide hole, under the action of the fourth elastic member 29 , the first limit block 27 can be pushed from the limit cavity to the guide hole, and the second limit block 28 can be pulled out from the limit hole of the blocking plate 18 at the same time, thereby removing the restriction on the blocking plate 18 When the fixing rod 8 drives the connecting plate 26 to be reinserted into the guide hole, the end of the connecting plate 26 acts on the hypotenuse of the first limit block 27, forcing the first limit block 27 to move from the guide hole to the In the limiting cavity, and exert pressure on the fourth elastic member 29, and the fourth elastic member 29 exerts elastic force on the second limiting block 28, and the third telescopic member 19 pulls the blocking plate 18 to return to the housing 1 during the process , when the limit hole on the blocking plate 18 moves to be flush with the second limit block 28, under the action of the fourth elastic member 29, push the second limit block 28 to re-insert into the limit hole, and continue to The blocking plate 18 is fixed.

The housing 1 is also provided with a fixing plate 25, one end of the third telescopic member 19 is sealed with the fixing plate 25, and the other end is sealed with the blocking plate 18; There is also a fifth elastic member 20 in the placement slot. One end of the fifth elastic member 20 is connected to the bottom of the placement slot, and the other end is connected to the end of the blocking plate 18 facing the gas pipe 2 .

The provided fixing plate 25 is used to fix the third telescopic element 19 to ensure that the third telescopic element 19 can only be stretched in the direction of the blocking plate 18 after inflating the inside thereof.

In order to improve the response speed of the blocking plate 18, a fifth elastic member 20 is provided. When the limiting member fixes the blocking plate 18, the fifth elastic member 20 is in a stretched state. After the positioning member is unlocked, under the action of the fifth elastic member 20 , the blocking plate 18 can be pulled to quickly block the gas pipe 2 .

Example 3

As shown in Figure 10, the synchronous computing natural gas energy metering IoT system includes a user platform, a service platform, a management platform, a sensor network platform and a sensor control platform that interact in sequence;

The perception control platform is the above-mentioned natural gas energy metering device, and the perception control platform transmits the acquired perception information to the management platform through the sensor network platform; the management platform includes an energy metering management system, and the The energy metering management system comprehensively analyzes and processes the received perception information, transmits user demand information to the user platform through the service platform, and issues control instructions to the perception control platform through the sensor network platform. The specific embodiments described above further describe the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above descriptions are only specific embodiments of the present invention, and are not intended to limit the scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims (10)

1. The synchronous operation type natural gas energy metering device is characterized by comprising a management platform and a shell (1), wherein a data preprocessing module and an energy calculating module are arranged in the shell (1), and the data preprocessing module is used for carrying out data classification and storage on perception information of natural gas and transmitting the perception information to the energy calculating module;

the energy calculation module calculates the standard condition flow in a set time period through the sensing information transmitted by the data preprocessing module, matches the natural gas unit heating value corresponding to the standard condition flow through the data preprocessing module, and realizes natural gas energy measurement through the product of the natural gas unit heating value and the standard condition flow;

the data preprocessing module can transmit the processed information to the management platform, and the management platform realizes remote energy metering accounting.

2. The synchronous arithmetic formula natural gas energy metering device according to claim 1, further comprising a flow sensor, a pressure sensor and a temperature sensor arranged in the housing (1), wherein the flow sensor, the pressure sensor and the temperature sensor are used for collecting sensing information of natural gas and transmitting the collected sensing information to the data preprocessing module;

the energy storage device is characterized by further comprising a touch display screen and a communication module, wherein the touch display screen and the communication module are arranged in the shell (1), the touch display screen is respectively connected with the data preprocessing module and the energy calculating module, and the communication module is respectively electrically connected with the energy calculating module and the data preprocessing module to realize bidirectional communication;

the data preprocessing module is also used for transmitting the acquired sensing information of the natural gas to the communication module, and the communication module is used for realizing external information interaction.

3. The synchronous operation type natural gas energy metering device according to claim 1, further comprising a calorific value analysis processing module arranged in the housing (1), wherein an output end of the calorific value analysis processing module is connected with the data preprocessing module, and an input end of the calorific value analysis processing module is provided with a sample gas processing system and a standard gas processing system;

the calorific value analysis processing module is used for calculating the calorific value of the standard gas after impurity removal of the standard gas processing system, and comparing the calculation result with the standard value of the calorific value of the standard gas to realize the calibration of the calorific value analysis processing module;

the calorific value analysis processing module is used for calculating the calorific value of the sample gas subjected to impurity removal by the sample gas processing system and transmitting the calculated calorific value information of the natural gas unit corresponding to the standard condition flow to the data preprocessing module;

the input of sample gas processing system still is equipped with sample gas controller, sample gas controller's input still is equipped with sample gas and gathers the interface, standard gas processing system's input still is equipped with standard gas and gathers the interface.

4. The synchronous operation type natural gas energy metering device according to claim 3, wherein the sample gas collecting interface further comprises a sampling pipe (3) which is arranged in the housing (1) and communicated with the gas pipe (2), an air pump (4) which is communicated with the sampling pipe (3) is further arranged on the outer wall of the sampling pipe (3), a first telescopic piece (5) is arranged in the sampling pipe (3), and an impurity removing element which is used for discharging fluid in the sampling pipe (3) is arranged at the movable end of the first telescopic piece (5);

still including setting up third extensible member (19) in casing (1), the expansion end of third extensible member (19) is equipped with and is used for shutoff board (18) to gas pipe (2), still be equipped with in gas pipe (2) and be used for the locating part fixed to shutoff board (18), when the edulcoration component stretches into in gas pipe (2), the locating part can remove the fixed to shutoff board (18).

5. The synchronous operation type natural gas energy metering device according to claim 4, wherein a fixing rod (8) is arranged in the sampling pipe (3), one end of the fixing rod (8) extends into the first telescopic piece (5), and the other end of the fixing rod can extend into the gas pipe (2);

the impurity removing element comprises a first movable block (7) and a second movable block (10) of which the outer diameter is matched with the inner diameter of the sampling pipe (3), the first movable block (7) and the second movable block (10) are sleeved on the fixed rod (8), and the movable end of the first telescopic piece (5) is connected with the first movable block (7);

the fixing rod (8) is further provided with an exhaust hole (9) used for discharging fluid in the sampling pipe (3), and when the first fixing block (7) moves towards the second fixing block (10), the exhaust hole (9) can be opened.

6. The synchronous computing type natural gas energy metering device according to claim 5, wherein a second telescopic member (15) is further arranged in the first telescopic member (5), one end of the second telescopic member (15) is connected with the inner top surface of the first telescopic member (5), and the other end of the second telescopic member is connected with the fixing rod (8);

first extensible member (5) and second extensible member (15), third extensible member (19) are the bellows, and first extensible member (5) communicate with third extensible member (19) through connecting pipe (24), and first extensible member (5) and second extensible member (15) are connected with the pump body through trachea respectively.

7. The synchronous operation formula natural gas energy metering device according to claim 5, wherein a channel (11) is further arranged in the fixing rod (8), one end of the channel (11) is communicated with the exhaust hole (9), and the other end of the channel is communicated with the side wall of the fixing rod (8);

be equipped with the connecting hole that internal diameter and dead lever (8) external diameter match on second fixed block (10), dead lever (8) insert to the connecting hole in, be equipped with the first chamber that holds on the inner wall of connecting hole, the first intracavity that holds is equipped with first elastic component (12) and plugging block (13), the elasticity that first elastic component (12) produced can promote plugging block (13) and insert to passageway (11) in to carry out the shutoff to passageway (11).

8. The synchronously operated natural gas energy metering device according to claim 4, wherein the limiting member includes a locking member and an L-shaped connecting plate (26);

the gas pipe (2) is a square pipe, a guide hole and a strip-shaped opening matched with the blocking plate (18) are formed in the gas pipe (2), the strip-shaped opening and the guide hole are communicated with the interior of the gas pipe (2), the blocking plate (18) can be inserted into the gas pipe (2) through the strip-shaped opening and blocks the gas pipe (2), and a limiting hole is further formed in the side wall of the blocking plate (18);

connecting plate (26) one end and dead lever (8) are towards the end connection of gas pipe (2) direction, and the other end can insert in the guiding hole, be equipped with the spacing chamber with the guiding hole intercommunication on the bar mouth inner wall, the retaining member is located spacing intracavity, and when connecting plate (26) inserted in the guiding hole, connecting plate (26) can promote the retaining member and insert to spacing downthehole on shutoff board (18).

9. The synchronous operation type natural gas energy metering device according to claim 8, wherein the locking member comprises a first limiting block (27), a second limiting block (28) and a fourth elastic member (29), the first limiting block (27), the second limiting block (28) and the fourth elastic member (29) are all located in a limiting cavity, two ends of the fourth elastic member (29) are respectively connected with the first limiting block (27) and the second limiting block (28), and the second limiting block (28) can be inserted into the limiting hole;

the first limiting block (27) is also provided with a bevel edge towards the square end of the guide hole.

10. A synchronous operation type natural gas energy measurement Internet of things system is characterized in that,

the system comprises a user platform, a service platform, a sensing network platform and a perception control platform which are sequentially interacted;

the perception control platform is the natural gas energy metering device of any one of claims 1 to 9, and transmits acquired perception information to the management platform through the sensing network platform;

the management platform comprises an energy metering management system, the energy metering management system carries out comprehensive analysis processing on the received perception information, transmits user demand information to the user platform through the service platform, and issues a control instruction to the perception control platform through the sensing network platform.

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