CN105758235B - A kind of hollow board-like air cooling compressor and its control method - Google Patents
A kind of hollow board-like air cooling compressor and its control method Download PDFInfo
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- CN105758235B CN105758235B CN201610105939.3A CN201610105939A CN105758235B CN 105758235 B CN105758235 B CN 105758235B CN 201610105939 A CN201610105939 A CN 201610105939A CN 105758235 B CN105758235 B CN 105758235B
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- 238000001816 cooling Methods 0.000 title claims abstract description 89
- 238000000034 method Methods 0.000 title claims abstract description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 167
- 230000009471 action Effects 0.000 claims abstract description 24
- 238000005070 sampling Methods 0.000 claims abstract description 7
- 239000000498 cooling water Substances 0.000 claims description 35
- 229910001220 stainless steel Inorganic materials 0.000 claims description 21
- 239000010935 stainless steel Substances 0.000 claims description 21
- 238000005507 spraying Methods 0.000 claims description 19
- 238000003466 welding Methods 0.000 claims description 8
- 239000007921 spray Substances 0.000 claims description 6
- 230000000750 progressive effect Effects 0.000 description 9
- 230000008569 process Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D9/0062—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by spaced plates with inserted elements
- F28D9/0068—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by spaced plates with inserted elements with means for changing flow direction of one heat exchange medium, e.g. using deflecting zones
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
- F28F27/003—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus specially adapted for cooling towers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2250/00—Arrangements for modifying the flow of the heat exchange media, e.g. flow guiding means; Particular flow patterns
- F28F2250/10—Particular pattern of flow of the heat exchange media
- F28F2250/102—Particular pattern of flow of the heat exchange media with change of flow direction
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A kind of hollow board-like air cooling compressor, include the outer loop runner of inner cold water and the cooling unit with the outer loop runner progress heat exchange of inner cold water, the air multiplier that the cooling unit includes centered on the position where the central axes of the outer loop runner of inner cold water, is arranged at below the outer loop runner of inner cold water, current branch formed with multi-channel parallel between the water outlet of inner cold system and the water inlet of inner cold system, forms ripple type air flow channel between each current branch；And by cooperating between the sampling unit in corresponding control method, control unit and action execution unit, outside air is introduced by air multiplier, is sent into the ripple type air flow channel extended from inlet channel to outlet conduit direction.Complete heat exchange operation.The hollow board-like air cooling compressor of one kind provided by the invention and its control method, there is provided one kind completes heat exchange operation in the case where not depending on water cooling, meets outer cold structure and its correlation method.
Description
Technical Field
The invention belongs to an external cooling system in the field of refrigeration, and particularly relates to a hollow plate type air cooling tower and a control method thereof.
Background
The direct-current transmission converter valve cooling system is generally divided into an inner cooling water circulation system and an outer cooling circulation system. After heat exchange with the heating element is completed, the inner cooling water enters the outer cooling circulation system to exchange heat with an outer cooling medium, and is pressurized by the circulating pump to enter the main water pipeline after being cooled.
In the prior art, a snakelike radiating pipe is used for circulating external cooling, and the whole radiating pipeline only has one water outlet and one water inlet, so that the requirement of different cooling capacities cannot be flexibly met; the whole process is only provided with one flow channel, the heat transfer coefficient of the radiating pipe is low, heat exchange can be realized only by spraying, a large amount of external cold water resources for cooling are required, waste of water resources is caused, and the cooling response under water shortage and water-free environments cannot be adapted. In addition, the cooling control in the prior art is only provided with one stage, has graduality, cannot respond to the change of water and air temperature better, and causes resource waste.
The utility model with the application number of '201320691023.2' discloses a name is direct current valve cold system cooling tower antisludging test device, includes the step of carrying out the electromagnetism scale removal to spray water among cooling tower make-up water and the water-collecting tray. Still provide anti-scaling test device, including looping through the internal circulation pump, cooling tower and the water tank that the pipe connection becomes the internal circulation return circuit: the cooling tower adopts two groups of independent heat exchange coil pipes and two groups of spraying loops, the two groups of independent manned coil pipes are connected into the internal circulation loop in parallel, and one of the two groups of spraying loops adopts on-site cooling tower spraying water for spraying. According to the technical scheme, the influence of various scaling factors on the scaling of the cooling tower can be detected and analyzed, and the spraying technology is also used.
Disclosure of Invention
In order to solve the problems, the invention provides a structure and a corresponding method for completing heat exchange operation without depending on water cooling and meeting external cooling requirements, and the invention provides a hollow plate type air cooling tower and a control method thereof, wherein the technical scheme is as follows:
the utility model provides a cavity plate-type air cooling tower, is including the outside circulation runner of interior cold water and the cooling unit who carries out the heat exchange with the outside circulation runner of interior cold water which characterized in that:
a water outlet pipeline (1) is led out from a water outlet of the internal cooling system, a water inlet pipeline (2) is led out from a water inlet of the internal cooling system,
the water outlet pipeline and the water inlet pipeline are longitudinally arranged in parallel,
a plurality of water flow branches (3) connected in parallel are formed between the water outlet pipeline and the water inlet pipeline,
the water outlet pipeline, the water inlet pipeline and the multiple water flow branches connected in parallel form an external circulating flow passage (4) of the internal cooling water,
a corrugated air flow channel (5) is formed between each water flow branch;
the cooling unit which exchanges heat with the external circulating flow passage of the internal cooling water comprises an air doubling machine (6) which is arranged below the external circulating flow passage of the internal cooling water and takes the position of the central axis of the external circulating flow passage of the internal cooling water as the center,
the inner cooling water flows from the water outlet pipeline to the water inlet pipeline through each water flow branch,
the air doubling machine introduces outside air and sends the air into a corrugated air flow channel extending from the water inlet pipeline to the water outlet pipeline.
Further, the air conditioner is provided with a fan,
the water flow branch is formed by connecting a plurality of groups of detachable hollow plate-type water ways (7) in series,
each group of hollow plate type water channels is formed by cross welding of four stainless steel hollow plates with the thickness of 0.6 mm-1 mm, and the four welded stainless steel hollow plates form a snake-shaped flow channel.
Further, the air conditioner is provided with a fan,
a plurality of fins are evenly arranged on the stainless steel hollow plate body,
each rib is arranged in a V shape,
5-7 welding spots are welded at equal intervals along the central axis of the stainless steel hollow plate.
Further, the air conditioner is provided with a fan,
the cooling unit which exchanges heat with the external circulation flow channel of the inner cooling water also comprises a centrifugal fan (8) which is connected with the pipeline of the air doubling machine in parallel,
the centrifugal fan is arranged at the position where the space of the external circulation flow channel of the inner cooling water extends longitudinally and transversely.
Further, the air conditioner is provided with a fan,
the cooling unit which exchanges heat with the external circulation flow channel of the inner cooling water also comprises a spraying pipeline (9) arranged below the air doubling machine, and a plurality of spraying heads internally embedded with stainless steel guide vanes are uniformly arranged on the spraying pipeline.
A control method of a hollow plate type air cooling tower is completed through mutual cooperation among a sampling unit, a control unit and an action execution unit, and is characterized in that:
the sampling unit comprises: a first water temperature sensor (10) arranged at the inner cooling water outlet, a second water temperature sensor (11) arranged at the inner cooling water inlet and a temperature sensor (12) arranged outside,
the control unit is a PLC (13),
the action execution unit comprises an air doubling machine, a centrifugal fan and a spraying pipeline,
the control method is completed by the following components:
s1: the first water temperature sensor, the second water temperature sensor and the temperature sensor transmit each temperature signal to a corresponding signal receiving end of the PLC in real time through respective channels between the first water temperature sensor, the second water temperature sensor and the PLC;
s2: when the PLC signal receiving end receives the temperature value T of the first water temperature sensor1When the temperature is more than or equal to 36 ℃, issuing a starting instruction to an action signal receiving end of the air doubling machine;
s3: when the PLC signal receiving end receives the temperature value T of the second water temperature sensor2∈[36℃，49℃]When the fan is started, a starting instruction is issued to a centrifugal fan action signal receiving end;
s4: when the PLC signal receiving end receives the temperature value T of the second water temperature sensor2And when the temperature is more than or equal to 50 ℃, issuing a starting instruction to a spray pipeline action signal receiving end.
Further, the air conditioner is provided with a fan,
in step S3, when the PLC signal receiving terminal receives the temperature value T of the second water temperature sensor2∈[36℃，49℃]And delaying for 1 minute 30 seconds to 2 minutes 30 seconds, and sending a starting instruction to a centrifugal fan action signal receiving end.
According to the hollow plate type air cooling tower and the control method thereof, firstly, a cooling structure capable of greatly reducing the dependence on water is designed through structural improvement; secondly, in the heat exchange, the water channel and the air channel are directly subjected to heat exchange through structural design, and finally, a three-level gradient progressive mode is formed through corresponding devices and equipment components in the heat exchange control process, so that the heat exchange requirements of different water temperatures and environment temperatures are met in a progressive mode. The invention provides a hollow plate type air cooling tower and a control method thereof, which can complete heat exchange operation without depending on water cooling, meet the structure of external cooling and a corresponding method thereof, design the control method into a three-level gradient progressive mode by taking optimal cost as a guiding idea, and respond to different operation requirements in a low-energy consumption mode.
Drawings
FIG. 1 is a block diagram of an air cooling tower embodying the present invention;
FIG. 2 is a block diagram of a water flow branch according to the present invention;
fig. 3 is a block diagram of a hollow plate type waterway structure in the present application;
fig. 4 is a flowchart illustrating a control method according to the present invention.
In the figure, 1 is a water outlet pipeline; 2 is a water inlet pipeline; 3 is a water flow branch; 4 is an external circulation flow channel; 5 is a corrugated air flow channel; 6 is an air doubling machine; 7 is a hollow plate type waterway; 8 is a centrifugal fan; 9 is a spray pipeline; 10 is a first water temperature sensor; 11 is a second water temperature sensor; 12 is a temperature sensor; 13 is PLC.
Detailed Description
Hereinafter, a hollow plate type air cooling tower and a control method thereof according to the present invention will be described in further detail with reference to the drawings and embodiments.
As shown in fig. 1, a hollow plate type air cooling tower comprises an external circulation flow channel of internal cooling water and a cooling unit for heat exchange with the external circulation flow channel of the internal cooling water, wherein a water outlet pipeline 1 is led out from a water outlet of an internal cooling system, a water inlet pipeline 2 is led out from a water inlet of the internal cooling system, the water outlet pipeline and the water inlet pipeline are longitudinally arranged in parallel, a plurality of parallel water flow branches 3 are formed between the water outlet pipeline and the water inlet pipeline, the water outlet pipeline, the water inlet pipeline and the plurality of parallel water flow branches form an external circulation flow channel 4 of the internal cooling water, and a corrugated air flow channel 5 is formed between each water flow branch; the cooling unit which exchanges heat with the external circulation flow channel of the internal cooling water comprises an air doubling machine 6 which is arranged below the external circulation flow channel of the internal cooling water and takes the position of the central axis of the external circulation flow channel of the internal cooling water as the center, the internal cooling water flows from the water outlet pipeline to the water inlet pipeline through each water flow branch, the air doubling machine introduces the external air and sends the air into a corrugated air flow channel which extends from the water inlet pipeline to the direction of the water outlet pipeline.
Wherein,
the water flow branch is formed by connecting a plurality of groups of detachable hollow plate-type water ways 7 in series (as shown in figure 2),
each group of hollow plate type water channels is formed by cross welding four stainless steel hollow plates with the thickness of 0.6 mm-1 mm (as shown in figure 3, an arrow in figure 3 indicates the water flow direction), and the four welded stainless steel hollow plates form a snake-shaped flow channel.
Wherein,
a plurality of fins are evenly arranged on the stainless steel hollow plate body,
each rib is arranged in a V shape,
5-7 welding spots are welded at equal intervals along the central axis of the stainless steel hollow plate.
Wherein,
the cooling unit which exchanges heat with the external circulation flow channel of the inner cooling water also comprises a centrifugal fan 8 which is connected with the pipeline of the air doubling machine in parallel,
the centrifugal fan is arranged at the position where the space of the external circulation flow channel of the inner cooling water extends longitudinally and transversely.
Wherein,
the cooling unit which exchanges heat with the external circulation flow channel of the inner cooling water also comprises a spraying pipeline 9 arranged below the air doubling machine, and a plurality of spraying heads internally embedded with stainless steel guide vanes are uniformly arranged on the spraying pipeline.
The control method of the hollow plate type air cooling tower shown in fig. 4 is completed through mutual cooperation among the sampling unit, the control unit and the action execution unit, and is characterized in that:
the sampling unit comprises: a first water temperature sensor (10) arranged at the inner cooling water outlet, a second water temperature sensor (11) arranged at the inner cooling water inlet and a temperature sensor (12) arranged outside,
the control unit is a PLC (13),
the action execution unit comprises an air doubling machine, a centrifugal fan and a spraying pipeline,
the control method is completed by the following components:
s1: the first water temperature sensor, the second water temperature sensor and the temperature sensor transmit each temperature signal to a corresponding signal receiving end of the PLC in real time through respective channels between the first water temperature sensor, the second water temperature sensor and the PLC;
s2: when the PLC signal receiving end receives the temperature value T of the first water temperature sensor1When the temperature is more than or equal to 36 ℃, issuing a starting instruction to an action signal receiving end of the air doubling machine; and the negative pressure area at the lower part of the air doubling machine sucks external cooling air into the cooling tower, amplified vortex cooling air is formed at the upper part of the air doubling machine, and the cooling air flows to the direction of the water outlet pipeline from the water inlet pipeline and exchanges heat with the external circulation flow channel.
S3: when the PLC signal receiving end receives the temperature value T of the second water temperature sensor2∈[36℃，49℃]When the temperature value is larger than 35 ℃, or the temperature value of a temperature sensor arranged outside is larger than 35 ℃, a starting instruction with the appropriate frequency is sent to a centrifugal fan action signal receiving end according to the current temperature value; the centrifugal fan rotates according to a starting instruction, air is fed by the air doubling machine, and the cooling air flows towards the water outlet pipeline from the water inlet pipeline and exchanges heat with the external circulation flow channel.
S4: when the PLC signal receiving end receives the temperature value T of the second water temperature sensor2And when the temperature is more than or equal to 50 ℃, issuing a starting instruction to a spray pipeline action signal receiving end.
Wherein,
in step S3, when the PLC signal receiving terminal receives the temperature value T of the second water temperature sensor2∈[36℃，49℃]And delaying for 1 minute 30 seconds to 2 minutes 30 seconds, and sending a starting instruction to a centrifugal fan action signal receiving end.
Wherein,
in step S3, when the PLC signal receiving terminal receives a temperature value of a temperature sensor disposed outside and is greater than 35 ℃, a start instruction with a suitable frequency is issued to the centrifugal fan operation signal receiving terminal according to the current temperature value; the centrifugal fan rotates according to a starting instruction, air is fed by the air doubling machine, and the cooling air flows towards the water outlet pipeline from the water inlet pipeline and exchanges heat with the external circulation flow channel.
Examples
The present embodiment is described in the order of the structure of the external circulation flow path → the structure of the cooling tower → the control of the cooling tower.
The external circulation flow channel is composed of a plurality of parallel water flow branches connected between the water outlet pipeline and the water inlet pipeline, wherein the water flow branches are formed by connecting a plurality of groups of detachable hollow plate type water channels 7 in series, each group of hollow plate type water channels is formed by cross welding of four stainless steel hollow plates with the thickness of 0.6 mm-1 mm, and the thickness is comprehensively designed from the two aspects of water pressure and heat conduction and can well respond to heat exchange; the welded four stainless steel hollow plates form a snake-shaped flow channel, the length of the flow channel can be increased by the snake-shaped flow channel, and sufficient time is provided for heat exchange; a plurality of fins are uniformly arranged on the stainless steel hollow plate body and are used for increasing the contact surface of heat exchange; each rib is arranged in a V shape, each rib protrudes out of the stainless steel hollow plate body by 4.9-5.1 mm, and the distance between every two ribs is 9.9-10.1 mm; the welding of the axis equidistance along the hollow board of stainless steel has 5-7 solder joints, the solder joint is used for increasing the holding capacity of hollow board in the stainless steel.
The cooling tower structure is characterized in that firstly, the arrangement and the structure of an external circulation flow channel of the internal cooling water are improved, the former arrangement of the coiled pipes is improved into a matrix arrangement, and a reasonable occasion is provided for the subsequent heat exchange on the basis of saving the space layout;
secondly, the tubular member which forms the coiled pipe in the prior art is improved into a water flow branch which is formed by connecting independent hollow plates in series, and the hollow plates are more beneficial to water heat exchange compared with the prior tubular member, wherein the water flow branch is arranged in an S shape, so that the stroke of an air channel is prolonged, the time of a heat exchange process is increased, and the full heat exchange is facilitated;
thirdly, an air source is formed by connecting the air doubling machine and the centrifugal fan in parallel, so that the gradual sequential progressive of the cooling capacity is realized, the centrifugal fan is closed during general cooling, only the air doubling machine is started, and the centrifugal fan is started again on the basis of starting the air doubling machine when the cooling capacity lags behind the actual water temperature or the actual outdoor environment temperature so as to increase the driving force and meet the requirement of the cooling capacity; according to the invention, by arranging the replaceable water flow branches (namely, the number of the water flow branches can be respectively adapted according to actual conditions), cooling circulating water with different capacities can be flexibly adapted, and optimal matching on capacity is realized structurally; according to the invention, the hollow plate type single-way water channel is arranged into the snake-shaped water channel with three bends connected with three straight channels, so that the water flow passing time is prolonged, and sufficient exchange time is provided for cooling; the air doubling machine, the centrifugal fan and the spraying pipeline form a three-level gradient progressive mode, and the heat exchange requirements of different water temperatures and environment temperatures are met in a progressive mode.
The control method comprises the following steps:
s1: the first water temperature sensor, the second water temperature sensor and the temperature sensor transmit each temperature signal to a corresponding signal receiving end of the PLC in real time through respective channels between the first water temperature sensor, the second water temperature sensor and the PLC;
s2: when the PLC signal receiving end receives the temperature value T of the first water temperature sensor1When the temperature is more than or equal to 36 ℃, issuing a starting instruction to an action signal receiving end of the air doubling machine; and the negative pressure area at the lower part of the air doubling machine sucks external cooling air into the cooling tower, amplified vortex cooling air is formed at the upper part of the air doubling machine, and the cooling air flows to the direction of the water outlet pipeline from the water inlet pipeline and exchanges heat with the external circulation flow channel.
S3: when the PLC signal receiving end receives the temperature value T of the second water temperature sensor2∈[36℃，49℃]When the temperature value is larger than 35 ℃, or the temperature value of a temperature sensor arranged outside is larger than 35 ℃, a starting instruction with the appropriate frequency is sent to a centrifugal fan action signal receiving end according to the current temperature value; the centrifugal fan rotates according to the starting instruction to double the airAnd when the machine is fed, the cooling air flows to the water outlet pipeline from the water inlet pipeline and exchanges heat with the external circulating flow channel.
S4: when the PLC signal receiving end receives the temperature value T of the second water temperature sensor3And when the temperature is more than or equal to 50 ℃, issuing a starting instruction to a spray pipeline action signal receiving end.
In step S3, when the PLC signal receiving end receives the temperature value T of the second water temperature sensor2∈[36℃，49℃]And delaying for 1 minute 30 seconds to 2 minutes 30 seconds, and sending a starting instruction to a centrifugal fan action signal receiving end.
In step S3, when the PLC signal receiving terminal receives a temperature value of a temperature sensor disposed outside and is greater than 35 ℃, a start instruction with a suitable frequency is issued to the centrifugal fan operation signal receiving terminal according to the current temperature value; the centrifugal fan rotates according to a starting instruction, air is fed by the air doubling machine, and the cooling air flows towards the water outlet pipeline from the water inlet pipeline and exchanges heat with the external circulation flow channel.
According to the hollow plate type air cooling tower and the control method thereof, firstly, a cooling structure capable of greatly reducing the dependence on water is designed through structural improvement; secondly, in the heat exchange, the water channel and the air channel are directly subjected to heat exchange through structural design, and finally, a three-level gradient progressive mode is formed through corresponding devices and equipment components in the heat exchange control process, so that the heat exchange requirements of different water temperatures and environment temperatures are met in a progressive mode. The invention provides a hollow plate type air cooling tower and a control method thereof, which can complete heat exchange operation without depending on water cooling, meet the structure of external cooling and a corresponding method thereof, design the control method into a three-level gradient progressive mode by taking optimal cost as a guiding idea, and respond to different operation requirements in a low-energy consumption mode.
Claims (4)
1. The utility model provides a cavity plate-type air cooling tower, is including the outside circulation runner of interior cold water and the cooling unit who carries out the heat exchange with the outside circulation runner of interior cold water which characterized in that:
a water outlet pipeline (1) is led out from a water outlet of the internal cooling system, a water inlet pipeline (2) is led out from a water inlet of the internal cooling system,
the water outlet pipeline and the water inlet pipeline are longitudinally arranged in parallel,
a plurality of water flow branches (3) connected in parallel are formed between the water outlet pipeline and the water inlet pipeline,
the water outlet pipeline, the water inlet pipeline and the multiple water flow branches connected in parallel form an external circulating flow passage (4) of the internal cooling water,
a corrugated air flow channel (5) is formed between each water flow branch;
the cooling unit which exchanges heat with the external circulating flow passage of the internal cooling water comprises an air doubling machine (6) which is arranged below the external circulating flow passage of the internal cooling water and takes the position of the central axis of the external circulating flow passage of the internal cooling water as the center,
the inner cooling water flows from the water outlet pipeline to the water inlet pipeline through each water flow branch,
the air doubling machine introduces outside air and sends the air into a corrugated air flow channel extending from the water inlet pipeline to the water outlet pipeline;
the water flow branch is formed by connecting a plurality of groups of detachable hollow plate-type water ways (7) in series,
each group of hollow plate type water paths is formed by cross welding of four stainless steel hollow plates with the thickness of 0.6 mm-1 mm, and the four welded stainless steel hollow plates form a snake-shaped flow passage;
a plurality of fins are uniformly arranged on the stainless steel hollow plate body, each fin is arranged in a V shape,
5-7 welding spots are welded at equal intervals along the central axis of the stainless steel hollow plate;
the cooling unit which exchanges heat with the external circulation flow channel of the inner cooling water also comprises a centrifugal fan (8) which is connected with the pipeline of the air doubling machine in parallel,
the centrifugal fan is arranged at the position where the space of the external circulation flow channel of the internal cooling water extends longitudinally and transversely;
the cooling unit which exchanges heat with the external circulation flow channel of the inner cooling water also comprises a spraying pipeline (9) arranged below the air doubling machine, and a plurality of spraying heads internally embedded with stainless steel guide vanes are uniformly arranged on the spraying pipeline.
2. A control method of a hollow plate type air cooling tower is completed through mutual cooperation among a sampling unit, a control unit and an action execution unit, and is characterized in that:
the sampling unit comprises: a first water temperature sensor (10) arranged at the inner cooling water outlet, a second water temperature sensor (11) arranged at the inner cooling water inlet and a temperature sensor (12) arranged outside,
the control unit is a PLC (13),
the action execution unit comprises an air doubling machine, a centrifugal fan and a spraying pipeline,
the control method is completed by the following components:
s1: the first water temperature sensor, the second water temperature sensor and the temperature sensor transmit each temperature signal to a corresponding signal receiving end of the PLC in real time through respective channels between the first water temperature sensor, the second water temperature sensor and the PLC;
s2: when the PLC signal receiving end receives the temperature value T of the first water temperature sensor1When the temperature is more than or equal to 36 ℃, issuing a starting instruction to an action signal receiving end of the air doubling machine; the negative pressure area at the lower part of the air doubling machine sucks external cooling air into the cooling tower, amplified vortex cooling air is formed at the upper part of the air doubling machine, and the cooling air flows to the direction of the water outlet pipeline from the water inlet pipeline and exchanges heat with an external circulation flow channel;
s3: when the PLC signal receiving end receives the temperature value T of the second water temperature sensor2∈[36℃，49℃]When the temperature value is larger than 35 ℃, or the temperature value of a temperature sensor arranged outside is larger than 35 ℃, a starting instruction with the appropriate frequency is sent to a centrifugal fan action signal receiving end according to the current temperature value; the centrifugal fan rotates according to a starting instruction, air is fed by the air doubling machine, and the cooling air flows towards the water outlet pipeline from the water inlet pipeline and exchanges heat with the external circulating flow channel;
s4: when the PLC signal receiving end receives the temperature value T of the second water temperature sensor2And when the temperature is more than or equal to 50 ℃, issuing a starting instruction to a spray pipeline action signal receiving end.
3. The method of claim 2, further comprising the steps of:
in step S3, when the PLC signal is connectedThe receiving end receives the temperature value T of the second water temperature sensor2∈[36℃，49℃]And delaying for 1 minute 30 seconds to 2 minutes 30 seconds, and sending a starting instruction to a centrifugal fan action signal receiving end.
4. The method of claim 2, further comprising the steps of:
in step S3, when the temperature value received by the PLC signal receiving terminal and set in the outside temperature sensor is more than 35 ℃, a start instruction with a suitable frequency is issued to the centrifugal fan action signal receiving terminal according to the current temperature value; the centrifugal fan rotates according to a starting instruction, air is fed by the air doubling machine, and the cooling air flows towards the water outlet pipeline from the water inlet pipeline and exchanges heat with the external circulation flow channel.
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| CN201610105939.3A CN105758235B (en) | 2016-02-26 | 2016-02-26 | A kind of hollow board-like air cooling compressor and its control method |
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| CN201610105939.3A CN105758235B (en) | 2016-02-26 | 2016-02-26 | A kind of hollow board-like air cooling compressor and its control method |
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| CN105758235B true CN105758235B (en) | 2018-05-08 |
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| CN1092857A (en) * | 1993-03-20 | 1994-09-28 | 魏仕英 | Ventilation cooling tower using secondary injection air to spray |
| FR2710370B1 (en) * | 1993-09-21 | 1995-12-08 | Air Liquide | Method and assembly for compressing a gas. |
| CN1455221A (en) * | 2003-06-03 | 2003-11-12 | 广州市华德工业有限公司 | Plate-type heat exchange tube gill and its manufacturing method and application |
| KR20060101481A (en) * | 2003-10-28 | 2006-09-25 | 베헤르 게엠베하 운트 콤파니 카게 | Flow channel for a heat exchanger, and heat exchanger having flow passage of this type |
| CN2692611Y (en) * | 2004-01-12 | 2005-04-13 | 张跃 | Full counterflow type cooling tower |
| CA2686455C (en) * | 2007-05-09 | 2015-04-21 | Mcnnnac Energy Services, Inc. | Cooling system |
| US9377207B2 (en) * | 2010-05-25 | 2016-06-28 | 7Ac Technologies, Inc. | Water recovery methods and systems |
| CN202734663U (en) * | 2012-08-23 | 2013-02-13 | 中国南方电网有限责任公司超高压输电公司 | Control system for external cooling water system of valve cooling system |
| CN203615815U (en) * | 2013-11-04 | 2014-05-28 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Cooling tower scale inhibition testing device of direct-flow valve cold system |
| CN203790765U (en) * | 2014-04-12 | 2014-08-27 | 佛山市顺德区高美空调设备有限公司 | Explosion-proof-type non-splashing mute water curtain machine |
| CN203811026U (en) * | 2014-05-08 | 2014-09-03 | 国家电网公司 | Novel water baffle for cooling tower |
-
2016
- 2016-02-26 CN CN201610105939.3A patent/CN105758235B/en active Active
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