CN208313246U - A kind of fluid pressure type measuring instrument - Google Patents
A kind of fluid pressure type measuring instrument Download PDFInfo
- Publication number
- CN208313246U CN208313246U CN201820742727.0U CN201820742727U CN208313246U CN 208313246 U CN208313246 U CN 208313246U CN 201820742727 U CN201820742727 U CN 201820742727U CN 208313246 U CN208313246 U CN 208313246U
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- Prior art keywords
- measuring instrument
- type measuring
- differential pressure
- fluid pressure
- pressure type
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Abstract
The utility model belongs to field of measuring technique, specifically discloses a kind of fluid pressure type measuring instrument, including fluid reservoir, differential pressure probe, catheter and gas-guide tube；The fluid reservoir includes the liquid storing part and superposed gas storage portion positioned at lower part；Twoport pressure difference chip is equipped in the differential pressure probe, the twoport pressure difference chip includes the first detection mouth and the second detection mouth；Described catheter one end is connected to the liquid storing part, and the other end is connect with first detection mouth；Described gas-guide tube one end is connected to the gas storage portion, and the other end is connect with second detection mouth.Fluid pressure type measuring instrument disclosed by the utility model can hole, dell etc. to irregular shape measure, and measurement result is not influenced by hole, dell internal environment, and influence of the atmospheric pressure to pressure measurements is eliminated, measurement is convenient, and measurement accuracy is high.
Description
Technical field
The utility model relates to field of measuring technique more particularly to a kind of fluid pressure type measuring instruments.
Background technique
Durings geological exploration, oil exploitation etc., often it is related to carrying out depth to geographical features such as hole, dells
The case where measurement.
Generally measure the depth of hole, dell using laser range sensor etc. in the prior art, but when hole, dell
When in irregular shape, the laser of laser range sensor transmitting can be blocked by hole, the isoclinal wall body of dell and can not be obtained
Effective measurement result is obtained, and artificially enters in hole or dell and measures, labour cost is not only increased, can also there is one
Fixed security risk is unfavorable for measuring the execution of work.
Utility model content
The purpose of this utility model is to provide a kind of fluid pressure type measuring instruments, are surveyed with being suitable for the depth of hole, dell etc.
Amount, and influence measurement result by hole, dell internal environment, measurement is convenient, manpower and money needed for saving measurement
Source cost, measurement accuracy are high.
To achieve the above object, the utility model adopts the following technical solutions:
Fluid reservoir, the fluid reservoir include the liquid storing part and superposed gas storage portion positioned at lower part；
Differential pressure probe, interior to be equipped with twoport pressure difference chip, the twoport pressure difference chip includes the first detection mouth and the second detection
Mouthful；
Catheter, one end are connected to the liquid storing part, and the other end is connect with first detection mouth；And
Gas-guide tube, one end are connected to the gas storage portion, and the other end is connect with second detection mouth.
Further, further includes: protection sleeve pipe, one end are connect with the fluid reservoir, and the other end and the differential pressure probe connect
It connects, the catheter and the gas-guide tube are located in the protection sleeve pipe.
Further, the fluid pressure type measuring instrument further include:
Controlling terminal；And
Communication cable is at least partially disposed in the protection sleeve pipe, and communication interface is provided in the differential pressure probe, described
Communication cable one end is connect with the communication interface, and the other end is connect with the controlling terminal.
Further, the differential pressure probe includes shell and upper capping, and described upper capping one end and described shell one end are close
Envelope connection, the other end and the protection sleeve pipe are tightly connected, and the twoport pressure difference chip is located at the enclosure interior.
Further, the enclosure interior is additionally provided with AD sampling module and microprocessor, AD sampling module one end
It is connect with the twoport pressure difference chip, the other end is connect with the microprocessor.
Further, the enclosure interior is additionally provided with memory, and the memory is connect with the microprocessor.
Further, the differential pressure probe further includes lower head, and the other end of the lower head and the shell, which seals, to be connected
It connects.
Further, the differential pressure probe is made of stainless steel material.
Further, the differential pressure probe is made of metal, and erosion-resisting rubber is coated with outside the differential pressure probe
Material.
Further, the fluid pressure type measuring instrument further include:
Cylindrical protective shell, the differential pressure probe are located in the cylindrical protective shell, and the protection sleeve pipe passes through described
Cylindrical protective shell, and be tightly connected with the cylindrical protective shell.
The utility model has the beneficial effects that:
Fluid pressure type measuring instrument provided by the utility model, by the way that fluid reservoir, differential pressure probe and catheter and gas-guide tube is arranged,
Fluid reservoir can be placed on to the adjacent ground surface of hole or dell to be measured during measuring to hole, dell, it will
Differential pressure probe protrudes into hole, dell inside carries out the measurement of hole, dell depth, and measurement is simple to operate, and measurement result
It is not influenced by hole, dell internal environment, measurement accuracy is high.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the fluid pressure type measuring instrument provided by the embodiment of the utility model under measuring state；
Fig. 2 is the structure sectional view of differential pressure probe provided by the embodiment of the utility model and protection sleeve pipe；
Fig. 3 is the circuit block diagram inside differential pressure probe provided by the embodiment of the utility model.
It is marked in figure as follows:
20- palisades；30- hole；
1- fluid reservoir；2- protection sleeve pipe；3- differential pressure probe；4- catheter；5- gas-guide tube；6- communication cable；
31- shell；32- upper cover；33- lower head；
311- twoport pressure difference chip；313-AD sampling module；314- microprocessor；315- memory；316- power supply；317-
Communication interface.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples.It is understood that herein
Described specific embodiment is used only for explaining the utility model, rather than the restriction to the utility model.It further needs exist for
It is bright, part relevant to the utility model is illustrated only for ease of description, in attached drawing rather than entire infrastructure.
Fig. 1 is structural schematic diagram of the fluid pressure type measuring instrument provided by the embodiment of the utility model under measuring state, and Fig. 2 is
The structure sectional view of differential pressure probe 3 and protection sleeve pipe 2 provided by the embodiment of the utility model, Fig. 3 is the utility model embodiment
Circuit block diagram inside the differential pressure probe 3 of offer.With reference to shown in Fig. 1-Fig. 3, a kind of fluid pressure type measuring instrument is present embodiments provided,
For measuring the depth of hole 30, dell etc., it is used especially for measuring the depth of irregular inclined hole etc..It is provided in this embodiment
Fluid pressure type measuring instrument includes fluid reservoir 1, differential pressure probe 3, catheter 4 and gas-guide tube 5.1 storage inside of fluid reservoir has liquid, and wraps
Include the liquid storing part positioned at lower part and superposed gas storage portion；Twoport pressure difference chip 311, twoport pressure difference are set in differential pressure probe 3
Chip 311 includes the first detection mouth and the second detection mouth；4 one end of catheter is connect with liquid storing part, the other end and the first detection mouth
311 connections, for by the fluid connection in fluid reservoir 1 to the first detection mouth and making liquid pressure squeezing action in catheter 11
In the first detection mouth；5 one end of gas-guide tube is connect with gas storage portion, and the other end is connect with the second detection mouth, for will be in fluid reservoir 1
Gas connection makes the gas pressure intensity in gas-guide tube 5 act on the second detection mouth to the second detection mouth.
Using fluid pressure type measuring instrument carry out depth measurement when, fluid reservoir 1 is located on ground surface, differential pressure probe 3 positioned to
The lowest point for measuring hole 30, is connected to fluid reservoir 1 and differential pressure probe 3 with gas-guide tube 5 using catheter 4, the liquid in catheter 4
Pressure acts on the first detection mouth, and the gas pressure in gas-guide tube 5 acts on the second detection mouth.Due to the pressure and fluid of fluid
Vertical depth it is related, and fluid pressure variation is affected by vertical depth, and gas pressure change is by vertical depth
It influences smaller (since density is smaller), the gas pressure that gas-guide tube 5 acts on the second detection mouth can be approximately fluid reservoir 1
Gas storage portion in gas pressure, the pressure difference of the fluid pressure of 4 end of catheter and 5 end gas pressure of gas-guide tube is to eliminate gas
The absolute pressure of the 4 end fluid pressure of catheter of body pressure influence.
In the present embodiment, the gas storage portion in fluid reservoir 1 is connected to atmosphere, i.e. the pressure of 5 end of gas-guide tube is atmospheric pressure,
4 end fluid pressure of catheter and the pressure difference of 5 end gas pressure of gas-guide tube be eliminate atmospheric pressure influence liquid it is absolute
Pressure, the absolute pressure intensity values are directly proportional to liquid depth value in catheter 4, can get fluid reservoir by calculating the absolute pressure intensity values
Vertical distance between 1 liquid level and differential pressure probe 3, which, which subtracts liquid depth in fluid reservoir 1, can be obtained band measurement
The depth value of hole 30.
Specifically, twoport pressure difference chip 311, AD sampling module 313 and microprocessor 314 are set inside differential pressure probe 3.Its
In, 4 end liquid pressure of catheter, which acts on the first detection mouth, makes the first detection mouth generate the microbit directly proportional to liquid pressure
It moves, 5 end gas pressure of gas-guide tube, which acts on the second detection mouth, makes the second detection mouth generate the microbit directly proportional to gas pressure
It moves, so that the capacitance of twoport pressure difference chip 311 be made to change.AD sampling module 313 collects twoport pressure difference chip 311
Capacitance, and digital signal is converted analog signals into, it is transmitted to microprocessor 314 and carries out processing calculating, according to twoport pressure difference
The pressure difference of liquid pressure intensity values Yu gas pressure intensity value, i.e. 4 end liquid of catheter is calculated in the capacitance variations value of chip 311
The absolute pressure intensity values of body can be obtained hanging down between 1 liquid level of differential pressure probe 3 and fluid reservoir after the density of liquid and conversion pressure
To height value, which is subtracted in fluid reservoir 1 after liquid depth height, the depth value of hole 30 as to be measured.
Band measurement hole 30 is measured using above-mentioned fluid pressure type measuring instrument, measurement is simple to operate, and measures knot
Fruit eliminates the influence of atmospheric pressure, and accuracy is high.
For measurement of the differential pressure probe 3 to pressure is better achieved, memory 314 and electricity are additionally provided with inside differential pressure probe 3
Source 316, memory 314 are connect with microprocessor 314, for recording and saving measurement data；Power supply 316 is first with each electronics respectively
Part is connected, for providing electric power support to each electronic component.
To realize external controling and operating to differential pressure probe 3, and timely understanding differential pressure probe 3 to hole to be measured
30 Measurement situation, fluid pressure type measuring instrument further include the controlling terminal being arranged in above earth's surface when measurement, are set inside differential pressure probe 3
It is equipped with communication interface 317, communication interface 317 is connect with microprocessor 314, and communication interface 317 passes through communication cable 6 and control
Terminal connection, for measurement result to be delivered to controlling terminal by communication cable 124, and the instruction that controlling terminal is sent passes
It transports in microprocessor 13, realizes the information communication between controlling terminal and differential pressure probe 3.
In the present embodiment, communication interface 317 is 485 communication interfaces, and in other embodiments, communication interface 317 can also
Think other interface forms for realizing information transmission.
Differential pressure probe 3 specifically includes shell 31 and the upper cover 32 and lower head 33 that are separately positioned on 31 both ends of shell.It is double
The electronic components such as mouth pressure difference chip 311, microprocessor 314, AD sampling module 313, power supply 316, memory 315 are arranged at shell
Inside body 31.Upper cover 32 and lower head 33 are respectively used to the upper and lower ends of seal casinghousing 31, prevent external environment to shell 31
Internal electronic component has an impact, and avoids external environment influence measurement accuracy.
In the present embodiment, shell 31, upper cover 32 and lower head 33 use split-type design, upper cover 32 and shell 31
Between and lower head 33 and shell 31 between be provided with sealing device.In other embodiments, shell 31 and lower head 33 can
To use integrated design, and upper cover 32 and shell 31 use detachable connection, facilitate the maintenance and more of differential pressure probe 3
It changes.
In the present embodiment, shell 31 is made of wear-resisting and corrosion resistant stainless steel material, prevents differential pressure probe 3 from stretching
The palisades 20 that collide with during entering hole 30 to be measured cause to damage to differential pressure probe 3, and can prevent in hole 30 to be measured
There are mordant liquid differential pressure probe 3 is caused it is corrosion-damaged.Differential pressure probe 3 can also use other metal material systems
At coating corrosion resistant rubber material outside, metal material, can while preventing corrosion, buffering differential pressure probe 3 protrude into
It collides with when measuring hole 30 influence of the vibration to 3 internal electronic element of differential pressure probe of the generation of palisades 20.
To protect to catheter 4, gas-guide tube 5 and communication cable 6, fluid pressure type measuring instrument is provided with protection sleeve pipe 2, leads
Liquid pipe 4, gas-guide tube 5 and communication cable 6 are at least most of in protection sleeve pipe 2.In the present embodiment, 2 lower end of protection sleeve pipe
It is tightly connected with upper cover 32, prevents extraneous gas or liquid from entering shell by the gap between protection sleeve pipe 2 and upper cover 32
Inside body 31, catheter 4, gas-guide tube 5 and communication cable 6 protrude into 31 inside of shell and connect with corresponding electronic component.Protective case
The other end of pipe 2 extends to above earth's surface, for by catheter 4, gas-guide tube 5 and communication cable 6 be delivered to above earth's surface with it is right
Each component connection answered.
On the one hand the setting of protection sleeve pipe 2 can protect catheter 4, gas-guide tube 5 and communication cable 6, prevent from leading
When liquid pipe 4, gas-guide tube 5 and communication cable 6 protrude into hole 30 or be recycled to earth's surface, scrapes palisades 20 and generate damage.Meanwhile it protecting
The setting of casing 2 can store catheter 4, gas-guide tube 5 and communication cable 6, prevent the in disorder setting of measure traverse line, unfavorable
In the arrangement and recycling of equipment, and each catheter 4, gas-guide tube 5 and communication cable 6 can be made not to wind in use
Phenomena such as knotting.
To protrude into differential pressure probe 3 in hole 30 more conveniently, protection sleeve pipe 2, catheter 4 and gas-guide tube 5 are soft
Pipe.The bottommost of hole 30 is more effectively protruded into for convenience of differential pressure probe 3, fluid pressure type measuring instrument can also include a cylinder
Shape protective shell, differential pressure probe 3 are located inside cylindrical protective shell, protection sleeve pipe 2 protrude into cylindrical protective shell and with cylinder
Protective shell is tightly connected.By the way that cylindrical protective shell is arranged, when can reduce differential pressure probe and protruding into hole 30, irregular rock
Obstruction of the wall 20 to differential pressure probe 3.
Fluid pressure type measuring instrument provided by the utility model can effectively measure irregular holes 30 using simple mode
Depth, measurement efficiency is high, and measurement is convenient, and measurement result is not influenced by 30 shape of hole to be measured and internal environment, can be disappeared
Influence except atmospheric pressure to hydraulic pressure measurement, measurement accuracy are high.
Note that above are only the preferred embodiment and institute's application technology principle of the utility model.Those skilled in the art's meeting
Understand, the utility model is not limited to specific embodiment described here, is able to carry out for a person skilled in the art various bright
Aobvious variation, readjustment and substitution is without departing from the protection scope of the utility model.Therefore, although passing through above embodiments
The utility model is described in further detail, but the utility model is not limited only to above embodiments, is not departing from
It can also include more other equivalent embodiments in the case that the utility model is conceived, and the scope of the utility model is by appended
Scope of the claims determine.
Claims (10)
1. a kind of fluid pressure type measuring instrument characterized by comprising
Fluid reservoir (1), the fluid reservoir (1) include the liquid storing part and superposed gas storage portion positioned at lower part；
Differential pressure probe (3), it is interior be equipped with twoport pressure difference chip (311), the twoport pressure difference chip (311) include the first detection mouth and
Second detection mouth；
Catheter (4), one end are connected to the liquid storing part, and the other end is connect with first detection mouth；And
Gas-guide tube (5), one end are connected to the gas storage portion, and the other end is connect with second detection mouth.
2. fluid pressure type measuring instrument according to claim 1, which is characterized in that further include:
Protection sleeve pipe (2), one end are connect with the fluid reservoir (1), and the other end is connect with the differential pressure probe (3), the drain
Pipe (4) and the gas-guide tube (5) are located in the protection sleeve pipe (2).
3. fluid pressure type measuring instrument according to claim 2, which is characterized in that the fluid pressure type measuring instrument further include:
Controlling terminal；And
Communication cable (6) is at least partially disposed in the protection sleeve pipe (2), is provided with communication interface in the differential pressure probe (3)
(317), described communication cable (6) one end is connect with the communication interface (317), and the other end is connect with the controlling terminal.
4. fluid pressure type measuring instrument according to claim 2, which is characterized in that the differential pressure probe (3) includes shell (31)
With upper cover (32), described upper cover (32) one end and the shell (31) one end are tightly connected, the other end and the protective case
It manages (2) to be tightly connected, it is internal that the twoport pressure difference chip (311) is located at the shell (31).
5. fluid pressure type measuring instrument according to claim 4, which is characterized in that be additionally provided with AD inside the shell (31) and adopt
Egf block (313) and microprocessor (314), described AD sampling module (313) one end and the twoport pressure difference chip (311) are even
It connects, the other end is connect with the microprocessor (314).
6. fluid pressure type measuring instrument according to claim 5, which is characterized in that be additionally provided with storage inside the shell (31)
Device (315), the memory (315) connect with the microprocessor (314).
7. fluid pressure type measuring instrument according to claim 4, which is characterized in that the differential pressure probe (3) further includes lower head
(133), the other end of the lower head (133) and the shell (31) is tightly connected.
8. fluid pressure type measuring instrument according to claim 1, which is characterized in that the differential pressure probe (3) is by stainless steel material
It is made.
9. fluid pressure type measuring instrument according to claim 1, which is characterized in that the differential pressure probe (3) is made of metal, and
Erosion-resisting rubber material is coated with outside the differential pressure probe (3).
10. fluid pressure type measuring instrument according to claim 2, which is characterized in that the fluid pressure type measuring instrument further include:
Cylindrical protective shell, the differential pressure probe (3) are located in the cylindrical protective shell, and the protection sleeve pipe (2) passes through institute
Cylindrical protective shell is stated, and is tightly connected with the cylindrical protective shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820742727.0U CN208313246U (en) | 2018-05-18 | 2018-05-18 | A kind of fluid pressure type measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820742727.0U CN208313246U (en) | 2018-05-18 | 2018-05-18 | A kind of fluid pressure type measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208313246U true CN208313246U (en) | 2019-01-01 |
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ID=64711756
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820742727.0U Expired - Fee Related CN208313246U (en) | 2018-05-18 | 2018-05-18 | A kind of fluid pressure type measuring instrument |
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| CN (1) | CN208313246U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110553609A (en) * | 2019-10-21 | 2019-12-10 | 中国人民解放军61540部队 | Method and system for determining sea depth measurement precision of deep sea pressure instrument |
-
2018
- 2018-05-18 CN CN201820742727.0U patent/CN208313246U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110553609A (en) * | 2019-10-21 | 2019-12-10 | 中国人民解放军61540部队 | Method and system for determining sea depth measurement precision of deep sea pressure instrument |
| CN110553609B (en) * | 2019-10-21 | 2021-07-23 | 中国人民解放军61540部队 | Method and system for determining sea depth measurement precision of deep sea pressure instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190101 Termination date: 20190518 |