CN109781337A - A kind of differential pressure transmitter for hot-gas channel pressure measurement - Google Patents
A kind of differential pressure transmitter for hot-gas channel pressure measurement Download PDFInfo
- Publication number
- CN109781337A CN109781337A CN201910019465.4A CN201910019465A CN109781337A CN 109781337 A CN109781337 A CN 109781337A CN 201910019465 A CN201910019465 A CN 201910019465A CN 109781337 A CN109781337 A CN 109781337A
- Authority
- CN
- China
- Prior art keywords
- pressure
- measurement
- capillary
- hot
- gas channel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
The present invention relates to pressure transmitter technical fields, more particularly to a kind of differential pressure transmitter for hot-gas channel pressure measurement, including the display screen built in watchcase and watchcase, the watchcase is equipped with signal output terminal, ground terminal and measurement interface, capillary is respectively connected on the low pressure, input end and high voltage input terminal of the measurement interface, the other end of the capillary is connect by ring flange with measurement pipeline, is equipped with condensing unit on the capillary.The present invention overcomes the deficiencies in the prior art, design is rationally, compact-sized, and high temperature brought by effective solution gas will affect the induction precision of sensor, the problem of causing measurement error larger, influence the judgement of testing staff, cause security risk.
Description
Technical field
The present invention relates to pressure transmitter technical fields, and in particular to a kind of difference for hot-gas channel pressure measurement
Pressure transmitter.
Background technique
Differential pressure transmitter is used to measure liquid level, flow and the pressure of liquid, gas or steam, then it is converted into 4~
The DC signal of 20mA exports.Differential pressure transmitter is the transmitter of the difference of measuring transducer pressure at two ends, with general pressure inverting
It has 2 pressure interfaces unlike device, is divided into positive pressure side and negative pressure end, under normal circumstances, the pressure of the positive pressure side of differential pressure transmitter
Power should be greater than negative pressure section pressure and just be capable of measuring.
Differential pressure transmitter working principle: the differential pressure from bilateral connecting pipe directly acts on the isolation of transmitter sensor bilateral
It on diaphragm, is conducted by the sealing fluid in diaphragm to measuring cell, measuring cell is converted to the differential pressure signal measured therewith
Corresponding electric signal passes to converter, becomes the output of standard electric signal by processing such as amplifications.
Not only structure is complicated for differential pressure transmitter currently on the market, but also has a single function, and in the measurement of high-temperature gas,
The gas of high temperature is easy direct shock transducer diaphragm, to damage sensor diaphragm, and high temperature brought by gas will affect
The induction precision of sensor causes measurement error larger, influences the judgement of testing staff, causes security risk.
The patent of Publication No. CN206573251U discloses a kind of high temperature teletransmission pressure difference transmitter, it includes height
Temperature charges region, high temp sensitive region, signal transmitting apparatus, teletransmission pressure difference transmitter ontology, the high temp sensitive region
Including circuit signal conversion equipment and fixed connection apparatus, the signal transmitting apparatus is high temperature communication cable, is believed by circuit
Testing pressure is converted to electric signal by number conversion equipment, then electric signal is passed to pressure differential pressure transporting by high temperature communication cable
Device ontology realizes the transmission and measurement of high-temperature medium, but the cost of the device is excessively high, is not suitable for promoting the use of, for this purpose,
We have proposed a kind of differential pressure transmitters for hot-gas channel pressure measurement.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, the present invention provides a kind of differential pressure transportings for hot-gas channel pressure measurement
Device, overcomes the deficiencies in the prior art, design is rationally, compact-sized, and high temperature brought by effective solution gas will affect
The problem of induction precision of sensor causes measurement error larger, influences the judgement of testing staff, cause security risk.
(2) technical solution
In order to achieve the above object, the present invention is achieved by the following technical programs:
A kind of differential pressure transmitter for hot-gas channel pressure measurement, including the display screen built in watchcase and watchcase,
The watchcase is equipped with signal output terminal, ground terminal and measurement interface, the low pressure, input end and high pressure of the measurement interface
Capillary is respectively connected on input terminal, the other end of the capillary is connect by ring flange with measurement pipeline, the capillary
On condensing unit is installed；
The condensing unit includes two drainers being arranged on two capillaries respectively, and the capillary is located at drainer
Multi-turn liquid cooling pipe is wound on one section of inner cavity, one end of the liquid cooling pipe is connected by perfusion tube with condensation liquid case, and two
The other end of a liquid cooling pipe is penetrated through by communicating pipe and is connected, and perforation is equipped with heat dissipation plate on one of them described perfusion tube, and another
One perfusion tube extends to the inner cavity of condensation liquid case and is connected with water pump, and pressure release component is equipped on the drainer.
Further, the watchcase is mounted on mounting rack by fastening screw, and mounting rack is vertical with horizontal plane holding
Setting.
Further, pressure balancing tank is installed on the capillary.
Further, the other end of the capillary connected in the measurement interface high voltage input terminal is connected to measurement pipeline
On high pressure pressure tappings, the other end of the capillary connected on the measurement interface low pressure, input end is connected to the low pressure of measurement pipeline
On pressure tappings.
Further, valve is installed, and valve is between pressure balancing tank and watchcase on the capillary.
Further, the pressure release component includes U-shaped sleeve, and the U-shaped sleeve is mounted on the inner wall of drainer, and U
Two stabilizer blades of shape sleeve extend the inner cavity of drainer, and the U-shaped sleeve is located at one section of upper perforation connection of drainer inner cavity
There is pressure release interface, the both ends inner cavity that the U-shaped sleeve is located at the same side is mounted on annular baffle, one of them described annular gear
Piece is connected with steelie by adjustable spring, and steelie contradicts another described annular baffle on the inner wall of U-shaped sleeve
Upper conflict has steelie, and the other end of steelie is mounted on the inner wall of U-shaped sleeve by adjustable spring.
Further, the heat dissipation plate is hollow structure inside, and the upper surface of heat dissipation plate is equipped with multiple heat dissipation bend pipes.
Further, the caliber of the capillary is more than or equal to 20 millimeters, and the material of capillary is iron-base superalloy.
(3) beneficial effect
The embodiment of the invention provides a kind of differential pressure transmitters for hot-gas channel pressure measurement.Having following has
Beneficial effect:
1, by watchcase, display screen, signal output terminal, ground terminal and the setting for measuring interface, the low of interface is measured
Testing pressure is effectively converted to electric signal by pressure input terminal and high voltage input terminal access capillary, then electric signal is passed through high temperature
Communication cable shows on a display screen from pressure difference transmitter ontology is passed to, meanwhile, signal output terminal can be passed through
Signal is passed into remote terminal, the transmission, measurement and monitoring of high-temperature medium are realized in cooperation data analysis.
2, by drainer, perfusion tube, liquid cooling pipe, communicating pipe, water pump and the composite structure for condensing liquid case, water pump starts,
The condensate liquid in liquid case will be condensed to input in the liquid cooling pipe in drainer by perfusion tube, realized to capillary high temperature gas
It is cooling, the induction precision for influencing sensor is prevented, causes measurement error larger, influences the judgement of testing staff, causes safety hidden
Suffer from.
3, installing valve and pressure balancing tank, pressure balancing tank additional on the capillary prevents high-temperature gas shock transducer film
Piece, to damage sensor diaphragm, valve can close the gas transport in capillary, on the measurement pipeline being not frequently used
When installation, valve can be closed at any time, protects sensor diaphragm, extend service life of equipment.
4, it by U-shaped sleeve, pressure release interface, annular baffle, the composite structure of steelie and adjustable spring, is filled in condensation
It sets when cooling down to the high-temperature gas in capillary, condensing unit air pressure inside increases, at this point, the gas inside condensing unit
It is communicated with the outside world by two oppositely arranged steelies and adjustable spring realization, realizes air pressure balance, protect equipment.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is schematic structural view of the invention；
Fig. 2 is the schematic diagram of internal structure of drainer in the present invention；
Fig. 3 is the combining structure schematic diagram of heat dissipation plate and heat dissipation bend pipe in the present invention；
Fig. 4 is the structural schematic diagram of pressure release component in the present invention；
Fig. 5 is the schematic diagram of internal structure that liquid case is condensed in the present invention.
In figure: watchcase 1, display screen 2, signal output terminal 3, ground terminal 4, measurement interface 5, capillary 6, mounting rack 7,
Condensing unit 8, drainer 81, perfusion tube 82, liquid cooling pipe 83, communicating pipe 84, pressure release component 85, U-shaped sleeve 851, pressure release interface
852, annular baffle 853, steelie 854, adjustable spring 855, heat dissipation plate 86, heat dissipation bend pipe 87, water pump 88, condensation liquid case
89, ring flange 9, valve 10, pressure balancing tank 11, measurement pipeline 12.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
A kind of differential pressure transporting for hot-gas channel pressure measurement provided referring to attached drawing 1, one embodiment of the invention
Device, including the display screen 2 built in watchcase 1 and watchcase 1, display screen 2 can show that differential pressure transmitter measures as a result, convenient for personnel
Observation, the watchcase 1 are equipped with signal output terminal 3, ground terminal 4 and measurement interface 5, measure the low pressure, input end of interface 5
Testing pressure is effectively converted into electric signal with high voltage input terminal access capillary 6, then electric signal is communicated into electricity by high temperature
Cable shows on the display screen 2 from pressure difference transmitter ontology is passed to, meanwhile, it can will be believed by signal output terminal 3
Remote terminal number is passed to, the transmission, measurement and monitoring of high-temperature medium, the measurement interface 5 are realized in cooperation data analysis
Low pressure, input end and high voltage input terminal on be respectively connected with capillary 6, the other end of the capillary 6 by ring flange 9 and is surveyed
Buret road 12 connects, and imports high-low pressure measuring medium by two capillaries 6, guarantees accurately measuring for differential pressure transmitter, described
Condensing unit 8 is installed on capillary 6.
In the present embodiment, as shown in Fig. 1,2 and 5, the condensing unit 8 includes two and is arranged on two capillaries 6 respectively
Drainer 81, the capillary 6, which is located on one section of 81 inner cavity of drainer, is wound with multi-turn liquid cooling pipe 83, the liquid cooling pipe 83
One end by perfusion tube 82 with condensation liquid case 89 be connected, and the other end of two liquid cooling pipes 83 by communicating pipe 84 perforation company
It connects, perforation is equipped with heat dissipation plate 86 on one of them described perfusion tube 82, and another perfusion tube 82 extends to condensation liquid case 89
Inner cavity and be connected with water pump 88, pressure release component 85 is installed, water pump 88 starts, will be in condensation liquid case 89 on the drainer 81
Condensate liquid inputted in the liquid cooling pipe 83 in drainer 81 by perfusion tube 82, realize cooling to 6 high temperature gas of capillary,
The induction precision for preventing from influencing sensor, causes measurement error larger, influences the judgement of testing staff, cause security risk.
In the present embodiment, as shown in Figure 1, the watchcase 1 is mounted on mounting rack 7 by fastening screw, and mounting rack 7 with
Horizontal plane holding is vertically arranged, and differential pressure pick-up during installation, needs to guarantee plumbness, if installation out of plumb, will lead to
Its non-return-to-zero, and if zero point non-return-to-zero, the result of measurement can show inaccurate.
In the present embodiment, as shown in Figure 1, being equipped with pressure balancing tank 11 on the capillary 6, pressure balancing tank 11 is prevented
High-temperature gas shock transducer diaphragm, to damage sensor diaphragm.
In the present embodiment, as shown in Figure 1, the other end of the capillary 6 connected in measurement 5 high voltage input terminal of interface connects
It connects on the high pressure pressure tappings of measurement pipeline 12, the other end of the capillary 6 connected on measurement 5 low pressure, input end of interface connects
It connects on the low pressure pressure tappings of measurement pipeline 12, under normal circumstances, the pressure of the positive pressure side of differential pressure transmitter should be greater than negative pressure section pressure
Power is just capable of measuring, and the pressure of precise measurement high-temperature gas is convenient in the design of high pressure pressure tappings and low pressure pressure tappings.
In the present embodiment, as shown in Figure 1, being equipped with valve 10 on the capillary 6, and valve 10 is located at pressure balancing tank
Between 11 and watchcase 1, valve 10 can close the gas transport in capillary 6, install on the measurement pipeline being not frequently used
When, valve 10 can be closed at any time, protects sensor diaphragm, extend service life of equipment.
In the present embodiment, as shown in figure 4, the pressure release component 85 includes U-shaped sleeve 851, the U-shaped sleeve 851 is installed
On the inner wall of drainer 81, and two stabilizer blades of U-shaped sleeve 851 extend the inner cavity of drainer 81, the U-shaped sleeve 851
One section of upper penetrates through positioned at 81 inner cavity of drainer is connected with pressure release interface 852, and the U-shaped sleeve 851 is located at the both ends of the same side
Inner cavity is mounted on annular baffle 853, one of them described annular baffle 853 is connected with steelie by adjustable spring 855
854, steelie 854 contradicts on the inner wall of U-shaped sleeve 851, and contradicting in another described annular baffle 853 has steelie
854, and the other end of steelie 854 is mounted on the inner wall of U-shaped sleeve 851 by adjustable spring 855, in condensing unit 8
When cooling down to the high-temperature gas in capillary 6,8 air pressure inside of condensing unit is increased, at this point, the gas inside condensing unit 8
Body is communicated with the outside world by two oppositely arranged steelies 854 and the realization of adjustable spring 855, realizes air pressure balance, protection
Equipment.
In the present embodiment, as shown in figure 3, the heat dissipation plate 86 is hollow structure inside, and the upper surface of heat dissipation plate 86 is pacified
Equipped with multiple heat dissipation bend pipes 87, increase the contact area of condensate liquid and outside air, heat dissipation effect by multiple heat dissipation bend pipes 87
More preferably, condensate circulation constantly cools down to the high-temperature gas of capillary 6, protects the internal element of differential pressure transmitter.
In the present embodiment, the caliber of the capillary 6 is more than or equal to 20 millimeters, and the material of capillary 6 is iron-based high temp
Alloy, the caliber of capillary 6, which is more than or equal to 20 millimeters, can effectively guarantee gas transport, while avoid the particle in gas miscellaneous
Matter blocks pipeline, while iron-base superalloy high temperature resistance is good, long service life.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
Invention is explained in detail, those skilled in the art should understand that: it still can be to aforementioned each implementation
Technical solution documented by example is modified or equivalent replacement of some of the technical features；And these modification or
Replacement, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (8)
1. a kind of differential pressure transmitter for hot-gas channel pressure measurement, including the display screen built in watchcase and watchcase,
Be characterized in that: the watchcase is equipped with signal output terminal, ground terminal and measurement interface, the low pressure input of the measurement interface
Capillary is respectively connected on end and high voltage input terminal, the other end of the capillary is connect by ring flange with measurement pipeline, institute
It states and condensing unit is installed on capillary；
The condensing unit includes two drainers being arranged on two capillaries respectively, and the capillary is located at drainer inner cavity
One section on be wound with multi-turn liquid cooling pipe, one end of the liquid cooling pipe is connected by perfusion tube with condensation liquid case, and two liquid
The other end of cold pipe is penetrated through by communicating pipe and is connected, and perforation is equipped with heat dissipation plate, and another on one of them described perfusion tube
Perfusion tube extends to the inner cavity of condensation liquid case and is connected with water pump, and pressure release component is equipped on the drainer.
2. a kind of differential pressure transmitter for hot-gas channel pressure measurement as described in claim 1, it is characterised in that: institute
It states watchcase to be mounted on mounting rack by fastening screw, and mounting rack is vertically arranged with horizontal plane holding.
3. a kind of differential pressure transmitter for hot-gas channel pressure measurement as described in claim 1, it is characterised in that: institute
It states and pressure balancing tank is installed on capillary.
4. a kind of differential pressure transmitter for hot-gas channel pressure measurement as described in claim 1, it is characterised in that: institute
The other end for stating the capillary connected in measurement interface high voltage input terminal is connected on the high pressure pressure tappings of measurement pipeline, the survey
The other end of the capillary connected on amount interface low pressure, input end is connected on the low pressure pressure tappings of measurement pipeline.
5. a kind of differential pressure transmitter for hot-gas channel pressure measurement as described in claim 1, it is characterised in that: institute
It states and valve is installed on capillary, and valve is between pressure balancing tank and watchcase.
6. a kind of differential pressure transmitter for hot-gas channel pressure measurement as described in claim 1, it is characterised in that: institute
Stating pressure release component includes U-shaped sleeve, and the U-shaped sleeve is mounted on the inner wall of drainer, and two stabilizer blades of U-shaped sleeve extend
The inner cavity of drainer out, one section of upper perforation that the U-shaped sleeve is located at drainer inner cavity are connected with pressure release interface, the U-shaped set
The both ends inner cavity that cylinder is located at the same side is mounted on annular baffle, one of them described annular baffle is connected with by adjustable spring
Steelie, steelie contradict on the inner wall of U-shaped sleeve, and contradicting in another described annular baffle has steelie, and
The other end of steelie is mounted on the inner wall of U-shaped sleeve by adjustable spring.
7. a kind of differential pressure transmitter for hot-gas channel pressure measurement as described in claim 1, it is characterised in that: institute
Stating heat dissipation plate is hollow structure inside, and the upper surface of heat dissipation plate is equipped with multiple heat dissipation bend pipes.
8. a kind of differential pressure transmitter for hot-gas channel pressure measurement as described in claim 1, it is characterised in that: institute
The caliber for stating capillary is more than or equal to 20 millimeters, and the material of capillary is iron-base superalloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910019465.4A CN109781337A (en) | 2019-01-09 | 2019-01-09 | A kind of differential pressure transmitter for hot-gas channel pressure measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910019465.4A CN109781337A (en) | 2019-01-09 | 2019-01-09 | A kind of differential pressure transmitter for hot-gas channel pressure measurement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109781337A true CN109781337A (en) | 2019-05-21 |
Family
ID=66500070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910019465.4A Pending CN109781337A (en) | 2019-01-09 | 2019-01-09 | A kind of differential pressure transmitter for hot-gas channel pressure measurement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109781337A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112284604A (en) * | 2020-11-05 | 2021-01-29 | 南京沃天科技有限公司 | High-temperature-resistant pressure transmitter |
| CN114635687A (en) * | 2022-05-18 | 2022-06-17 | 东营佰旺商贸有限公司 | Differential pressure transmitter with high sealing performance for oil field |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993007100A1 (en) * | 1991-09-30 | 1993-04-15 | Electric Power Research Institute, Inc. | Use and selection of coating and surface materials to control surface fouling and corrosion using zeta potential measurement |
| GB2398880A (en) * | 2003-02-27 | 2004-09-01 | Gen Electric | Dynamic pressure probe holder for combustor with damping tube arranged to avoid condensation |
| CN1868860A (en) * | 2006-06-26 | 2006-11-29 | 山东新华医疗器械股份有限公司 | Constant pressure filling system |
| US20080141780A1 (en) * | 2006-12-01 | 2008-06-19 | Wavering Thomas A | Sensors, methods and systems for determining physical effects of a fluid |
| CA2561527C (en) * | 2004-03-29 | 2009-09-22 | Praxair Technology, Inc. | Cryocooler operation using temperature trending monitoring |
| CN202931081U (en) * | 2012-10-15 | 2013-05-08 | 浙江东音泵业股份有限公司 | Diving generator inner chamber pressure balancing device for well |
| CN203044458U (en) * | 2012-09-11 | 2013-07-10 | 绿田机械股份有限公司 | Non-loaded starting high-pressure pipeline pressure relief mechanism of high-pressure cleaning machine |
| CN205841343U (en) * | 2016-06-29 | 2016-12-28 | 浙江科力车辆控制系统有限公司 | Fuel tank with breathing equipment |
| CN206573251U (en) * | 2017-03-16 | 2017-10-20 | 重庆市南孝君科技有限公司 | High temperature teletransmission pressure difference transmitter |
| CN206683701U (en) * | 2016-12-13 | 2017-11-28 | 上海孚凌自动化控制系统有限公司 | The throttling arrangement of available buffer pressure |
| CN206695945U (en) * | 2017-03-15 | 2017-12-01 | 常州市宏大电气有限公司 | Atmosphere pressures on-line measurement device in high-temperature cabinet |
-
2019
- 2019-01-09 CN CN201910019465.4A patent/CN109781337A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993007100A1 (en) * | 1991-09-30 | 1993-04-15 | Electric Power Research Institute, Inc. | Use and selection of coating and surface materials to control surface fouling and corrosion using zeta potential measurement |
| GB2398880A (en) * | 2003-02-27 | 2004-09-01 | Gen Electric | Dynamic pressure probe holder for combustor with damping tube arranged to avoid condensation |
| CA2561527C (en) * | 2004-03-29 | 2009-09-22 | Praxair Technology, Inc. | Cryocooler operation using temperature trending monitoring |
| CN1868860A (en) * | 2006-06-26 | 2006-11-29 | 山东新华医疗器械股份有限公司 | Constant pressure filling system |
| US20080141780A1 (en) * | 2006-12-01 | 2008-06-19 | Wavering Thomas A | Sensors, methods and systems for determining physical effects of a fluid |
| CN203044458U (en) * | 2012-09-11 | 2013-07-10 | 绿田机械股份有限公司 | Non-loaded starting high-pressure pipeline pressure relief mechanism of high-pressure cleaning machine |
| CN202931081U (en) * | 2012-10-15 | 2013-05-08 | 浙江东音泵业股份有限公司 | Diving generator inner chamber pressure balancing device for well |
| CN205841343U (en) * | 2016-06-29 | 2016-12-28 | 浙江科力车辆控制系统有限公司 | Fuel tank with breathing equipment |
| CN206683701U (en) * | 2016-12-13 | 2017-11-28 | 上海孚凌自动化控制系统有限公司 | The throttling arrangement of available buffer pressure |
| CN206695945U (en) * | 2017-03-15 | 2017-12-01 | 常州市宏大电气有限公司 | Atmosphere pressures on-line measurement device in high-temperature cabinet |
| CN206573251U (en) * | 2017-03-16 | 2017-10-20 | 重庆市南孝君科技有限公司 | High temperature teletransmission pressure difference transmitter |
Non-Patent Citations (2)
| Title |
|---|
| 计量培训实用教程编委会: "《计量培训实用教程》", 30 June 2013 * |
| 郭育林等: "热气冷却器液位测量改造", 《川化》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112284604A (en) * | 2020-11-05 | 2021-01-29 | 南京沃天科技有限公司 | High-temperature-resistant pressure transmitter |
| CN114635687A (en) * | 2022-05-18 | 2022-06-17 | 东营佰旺商贸有限公司 | Differential pressure transmitter with high sealing performance for oil field |
| CN114635687B (en) * | 2022-05-18 | 2022-07-26 | 东营佰旺商贸有限公司 | Differential pressure transmitter with high sealing performance for oil field |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109781337A (en) | A kind of differential pressure transmitter for hot-gas channel pressure measurement | |
| CN103808911A (en) | Lubricating oil detection device | |
| CN2901271Y (en) | Flange diaphragm sealed liquid level and pressure transmitter | |
| CN103727995B (en) | Self-calibration liquid level sensor | |
| CN108225448A (en) | A kind of fiber F-P many reference amounts Intelligent Flowing Sensor and measuring method | |
| CN105352558B (en) | A kind of downhole optic fiber vortex-shedding meter | |
| CN208458835U (en) | The measuring device of conservator liquid level for project of transmitting and converting electricity | |
| CN208043152U (en) | A kind of mass flowmenter for chemicals production | |
| CN206450473U (en) | COLLECTING GAS SET OF FLOATING for seismic monitoring | |
| CN204388957U (en) | A kind of fluid level transmitter | |
| CN208634059U (en) | A kind of submersible electric pump exit parameter measuring apparatus | |
| CN209541846U (en) | Intelligent transformer oil level detection system based on pressure capsule system | |
| CN211042335U (en) | Jacket heating and temperature and pressure compensation type integrated wedge-shaped flowmeter | |
| CN210893282U (en) | Industrial steam is measured with preventing scalding flowmeter | |
| CN104215360B (en) | Calorimeter based on novel movable differential pressure type flowmeter | |
| CN203083620U (en) | Optical fiber two-phase flow-meter | |
| CN209244562U (en) | A kind of continuous measurement oil well liquid level device | |
| CN210322165U (en) | A check-up experimental apparatus for pressure transmitter | |
| CN203132607U (en) | Flow meter provided with magnetic pointer | |
| CN203705439U (en) | Lubricating oil detecting device | |
| CN102944269A (en) | Optical fiber laser flow meter | |
| CN101210836A (en) | Steam quality flowmeter and its measurement method | |
| CN107727164B (en) | Self-adjusting precession vortex flowmeter under abrasion of rotor blade | |
| CN210688753U (en) | Heat conduction oil expansion tank | |
| CN208937112U (en) | A kind of balanced flow measuring device and Flow Measuring System |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190521 |
|
| RJ01 | Rejection of invention patent application after publication |