CN219736439U - Multi-data acquisition and multi-parameter variable output pressure differential pressure transmitter - Google Patents
Multi-data acquisition and multi-parameter variable output pressure differential pressure transmitter Download PDFInfo
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- CN219736439U CN219736439U CN202320549007.3U CN202320549007U CN219736439U CN 219736439 U CN219736439 U CN 219736439U CN 202320549007 U CN202320549007 U CN 202320549007U CN 219736439 U CN219736439 U CN 219736439U
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- 238000004364 calculation method Methods 0.000 claims abstract description 11
- 238000004891 communication Methods 0.000 claims abstract description 11
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 6
- 238000012545 processing Methods 0.000 claims abstract description 6
- 229910021421 monocrystalline silicon Inorganic materials 0.000 claims description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 238000005259 measurement Methods 0.000 abstract description 18
- 239000012530 fluid Substances 0.000 abstract description 16
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005773 Enders reaction Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000001739 density measurement Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
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- Measuring Fluid Pressure (AREA)
- Measuring Volume Flow (AREA)
Abstract
The utility model relates to the technical field of flow measuring devices, in particular to a multi-data acquisition and multi-parameter variable output pressure differential pressure transmitter, which comprises a converter, a junction box and a differential pressure sensor which are sequentially arranged from top to bottom; the converter comprises a shell, wherein a power module, a communication module, a signal processing module, a temperature and pressure compensation calculation module, a liquid crystal display module and an analog signal output module which are electrically connected are installed in the shell. The method can meet the field fluid multi-parameter measurement, and can perform temperature and pressure compensation calculation of the medium, so that the stable, reliable and accurate measurement of the fluid medium flow is realized, meanwhile, the multi-parameter field display and remote transmission output can be realized, and the measured data can be stored for a long time and can be called.
Description
Technical Field
The utility model relates to the technical field of flow measurement devices, in particular to a multi-data acquisition and multi-parameter variable output pressure differential pressure transmitter.
Background
The industrial fluid has more technological parameters, mainly including parameters of flow, pressure, temperature and the like, and the measurement of the technological parameters is generally carried out by selecting corresponding measuring instruments, and the technological parameters are displayed on site and transmitted to a distributed control system DCS or corresponding signal receiving equipment remotely, so that the technological process control or metering and trade settlement are carried out according to corresponding measurement results. Therefore, the number of the on-site meters is large, the laying amount of the power supply lines and the signal acquisition lines is large and complex, and the purchase, installation and maintenance costs of the meters are high. In addition, if the temperature and pressure of the fluid are unstable, especially if the density of the gas and steam medium is changed greatly, a large additional error is generated when the flow meter without the density measurement function or the temperature and pressure compensation function is used for measuring the flow of the fluid, even the measured value loses the reference value, so that serious consequences are caused for the control of the process, and further, the trade metering cannot be performed.
Disclosure of Invention
In order to solve the technical problems, the utility model provides the multi-data acquisition and multi-parameter variable output pressure differential pressure transmitter which can meet the requirement of on-site fluid multi-parameter measurement, and can perform temperature and pressure compensation calculation of media, so that the stable, reliable and accurate measurement of the flow of the fluid media is realized, meanwhile, the multi-parameter on-site display and remote transmission output can be realized, and the measured data can be stored and called for a long time.
The utility model relates to a multi-data acquisition and multi-parameter variable output pressure differential pressure transmitter, which comprises: the converter, the junction box and the differential pressure sensor are sequentially arranged from top to bottom; the converter comprises a shell, wherein a power module, a communication module, a signal processing module, a temperature and pressure compensation calculation module, a liquid crystal display module and an analog signal output module which are electrically connected are installed in the shell.
Preferably, the junction box is a stainless steel junction box.
Preferably, the differential pressure sensor is a monocrystalline silicon differential pressure sensor, including a pressure sensor and a temperature sensor.
Preferably, the junction box is connected with the converter and the differential pressure sensor through a threaded structure.
Preferably, the power supply with the power supply module is 24VDC.
Compared with the prior art, the utility model has the beneficial effects that:
1. the utility model aims to provide a multi-data acquisition and multi-parameter variable output pressure differential pressure transmitter which is suitable for simultaneously measuring, displaying and remotely transmitting and outputting multi-parameters (flow, differential pressure, temperature and the like) of on-site pipeline fluid.
2. The utility model aims to provide a multi-data acquisition and multi-parameter variable output pressure differential pressure transmitter which can perform temperature and pressure compensation calculation in real time and realize stable, reliable and accurate measurement of flow.
3. The utility model aims to provide a multi-data acquisition and multi-parameter variable output pressure differential pressure transmitter which can receive measurement signals of an external pressure sensor and measurement signals of a temperature sensor.
4. The utility model aims to provide a multi-data acquisition and multi-parameter variable output pressure differential pressure transmitter which is provided with a flow measuring unit, and the stable, reliable and accurate measurement of medium flow is realized by measuring differential pressure values.
5. The utility model aims to provide a multi-data acquisition and multi-parameter variable output pressure differential pressure transmitter which has a flow accumulation calculation function and can store and call measured data for a long time.
6. The utility model aims to provide a multi-data acquisition and multi-parameter variable output pressure differential pressure transmitter which is intelligently designed and can carry out parameter setting, data browsing and calling in site and remote communication.
7. The utility model aims to provide a multi-data acquisition and multi-parameter variable output pressure differential pressure transmitter, wherein a flow measuring unit adopts a monocrystalline silicon measuring principle, so that the measuring precision is high, and the working is stable and reliable.
8. The utility model aims to provide a multi-data acquisition and multi-parameter variable output pressure differential pressure transmitter, wherein a temperature sensor is arranged in a flow measurement unit to automatically compensate the temperature, so that the temperature characteristic of an instrument is improved, and the occurrence probability of temperature drift and the measurement influence on a measurement zero point and a full range are reduced.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
The reference numerals in the drawings: 1. a converter; 2. a junction box; 3. a differential pressure sensor.
Detailed Description
The following describes in further detail the embodiments of the present utility model with reference to the drawings and examples. The following examples are illustrative of the utility model and are not intended to limit the scope of the utility model.
As shown in fig. 1, the multi-data acquisition and multi-parameter variable output pressure differential pressure transmitter provided by the utility model comprises: a converter 1, a junction box 2 and a differential pressure sensor 3 which are sequentially arranged from top to bottom; the converter 1 comprises a shell, and a power module, a communication module, a signal processing module, a temperature and pressure compensation calculation module, a liquid crystal display module and an analog signal output module which are electrically connected are installed in the shell.
Preferably, the junction box 2 is a stainless steel junction box 2.
Preferably, the differential pressure sensor 3 is specifically a monocrystalline silicon differential pressure sensor 3, including a pressure sensor and a temperature sensor.
Preferably, the junction box 2 is connected with the transducer 1 and the differential pressure sensor 3 through a screw structure.
Preferably, the power supply with the power supply module is 24VDC.
The converter 1 comprises a shell, a power supply module, a signal processing module, a temperature and pressure compensation calculation module, a liquid crystal display module, an analog signal output module, a communication module and the like, wherein the power supply is 24VDC, and can receive a differential pressure signal DeltaP of a differential pressure sensor 3 carried by the converter and amplify, filter, temper and calculate the differential pressure signal DeltaP to obtain a flow value of the measured fluid; meanwhile, the pressure signal P of the pressure sensor and the temperature signal T of the temperature sensor can be received, and the pressure value and the temperature value of the measured fluid can be obtained by signal amplification, filtering and tempering; the signal processing module and the temperature and pressure compensation calculation module complete temperature and pressure compensation correction of the fluid flow value in real time together to obtain an accurate flow value. The liquid crystal display unit can display the measured values of flow, differential pressure, temperature, accumulated flow and the like on site, the analog signal output module is responsible for completing remote transmission output of flow, differential pressure, pressure and temperature signals, generally 4-20 mA analog signals, and the communication module is used for completing site or remote communication work, generally adopts a HART communication form or an RS485 communication form.
The junction box 2 is made of stainless steel, is connected with the converter 1 and the differential pressure sensor 3 into a whole by using a threaded structure, is hollow, and is provided with a static pressure signal wire, a temperature signal wire and a flow (differential pressure delta P) signal wire which are gathered, and then enters the converter 1, so that the junction box is equivalent to a signal wire junction box between the pressure sensor, the temperature sensor, the differential pressure sensor 3 and the converter 1.
The differential pressure sensor 3 adopts a monocrystalline silicon measurement principle to measure the differential pressure value delta P of the high and low pressure sides of the pipeline fluid, derives and calculates the flow value according to the mass conservation law (continuity equation) and the energy conservation law (Bai ender equation) in the fluid mechanics, and has high measurement precision and stable and reliable work. The built-in temperature sensor carries out automatic temperature compensation, so that the temperature characteristic of the instrument is improved.
The multi-data acquisition and multi-parameter variable output pressure differential pressure transmitter provided by the utility model can simultaneously measure the technological parameters such as fluid flow, differential pressure, temperature, pressure and the like, satisfies the multi-parameter measurement of the fluid on site, and can simultaneously perform the temperature and pressure compensation calculation of the medium, thereby realizing the stable, reliable and accurate measurement of the fluid medium flow, simultaneously realizing the multi-parameter on-site display and remote transmission output and communication, and storing and calling the measured data for a long time. The intelligent energy-saving intelligent control system has the advantages of reducing the purchase, installation and maintenance costs of the user instrument, simplifying the laying of a power supply line and a signal acquisition line, realizing high intelligent and integrated degree and compact structure, facilitating the installation and maintenance of a user, carrying out data acquisition and analysis, improving the process, improving the production efficiency, reducing the cost and adapting to the energy social control requirements.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present utility model, and these modifications and variations should also be regarded as the scope of the utility model.
Claims (5)
1. A multiple data acquisition, multiple parameter variable output pressure differential pressure transmitter, comprising: the converter, the junction box and the differential pressure sensor are sequentially arranged from top to bottom; the converter comprises a shell, wherein a power module, a communication module, a signal processing module, a temperature and pressure compensation calculation module, a liquid crystal display module and an analog signal output module which are electrically connected are installed in the shell.
2. The multiple data acquisition, multiple parameter variable output differential pressure transmitter of claim 1, wherein the junction box is a stainless steel junction box.
3. The multiple data acquisition, multiple parameter variable output pressure differential pressure transmitter of claim 1, wherein the differential pressure sensor is embodied as a single crystal silicon differential pressure sensor, including a pressure sensor and a temperature sensor.
4. The multiple data acquisition, multiple parameter variable output differential pressure transmitter of claim 1, wherein the junction box is connected to the transducer and differential pressure sensor by a threaded structure.
5. The multiple data acquisition, multiple parameter variable output differential pressure transmitter of claim 1, wherein the power supply to the power module is 24VDC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320549007.3U CN219736439U (en) | 2023-03-21 | 2023-03-21 | Multi-data acquisition and multi-parameter variable output pressure differential pressure transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320549007.3U CN219736439U (en) | 2023-03-21 | 2023-03-21 | Multi-data acquisition and multi-parameter variable output pressure differential pressure transmitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219736439U true CN219736439U (en) | 2023-09-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320549007.3U Active CN219736439U (en) | 2023-03-21 | 2023-03-21 | Multi-data acquisition and multi-parameter variable output pressure differential pressure transmitter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219736439U (en) |
-
2023
- 2023-03-21 CN CN202320549007.3U patent/CN219736439U/en active Active
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