CN210322165U - A check-up experimental apparatus for pressure transmitter - Google Patents
A check-up experimental apparatus for pressure transmitter Download PDFInfo
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- CN210322165U CN210322165U CN201921481843.2U CN201921481843U CN210322165U CN 210322165 U CN210322165 U CN 210322165U CN 201921481843 U CN201921481843 U CN 201921481843U CN 210322165 U CN210322165 U CN 210322165U
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- pipeline
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- pressure transmitter
- pipe
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Abstract
The utility model discloses a check-up experimental apparatus for pressure transmitter, including the intake pipe, the feed liquor pipe, advance steam pipe and cavity, the cavity be connected with pipeline one, pipeline one is connected with temperature control device, temperature control device is connected with pipeline two, the middle-end of pipeline two is provided with the air-vent valve, pipeline two is connected with three-way first end, three-way second end is connected with the standard table, three-way third end is connected with the one end of pipeline three, the other end and the pressure transmitter of pipeline three are connected, the inside top of cavity is provided with cylinder one, the bottom of cylinder one has set gradually piston one, the baffle, the central point of baffle puts and is provided with the gas pocket, the bottom of cavity is provided with cylinder two, the bottom of cylinder two has set gradually piston two, O type circle. Has the advantages that: the utility model discloses recoverable fluid medium during the check-up avoids causing accident with the pressure release in the pipeline simultaneously, and can detect the temperature of medium, protective apparatus.
Description
Technical Field
The utility model relates to a pressure transmitter field particularly, relates to a check-up experimental apparatus for pressure transmitter.
Background
The pressure transmitter is a meter which converts pressure variation into standard output signal. Existing pressure transmitters are typically tested before shipment and then installed directly on the measurement circuit, by default being accurate. However, the accuracy of the transmitter may be affected during transportation, so a verification experiment device of the pressure transmitter is needed to verify the pressure transmitter. Usually, the calibration device of the pressure transmitter does not recover fluid medium after calibration is completed, the pressure in the pipeline is high, accidents are easy to happen, the temperature of gas is not detected, and if the temperature is too high or too low, the pressure transmitter is damaged, and errors also occur in detection.
An effective solution to the problems in the related art has not been proposed yet.
SUMMERY OF THE UTILITY MODEL
To the problem among the correlation technique, the utility model provides a check-up experimental apparatus for pressure transmitter to overcome the above-mentioned technical problem that current correlation technique exists.
Therefore, the utility model discloses a specific technical scheme as follows:
a checking experiment device for a pressure transmitter comprises an air inlet pipe, wherein the air inlet pipe is connected with a cavity, a liquid inlet pipe is arranged on the cavity and on the side surface adjacent to the air inlet pipe, a steam inlet pipe is arranged on the cavity and on the side surface opposite to the liquid inlet pipe, the cavity is connected with one end of a first pipeline on the opposite side of the air inlet pipe, the other end of the first pipeline is connected with one end of a temperature control device, the other end of the temperature control device is connected with one end of a second pipeline, the middle end of the second pipeline is provided with a pressure regulating valve, the other end of the second pipeline is connected with the first end of a tee joint, the second end of the tee joint is connected with a standard meter, the third end of the tee joint is connected with one end of a third pipeline, the other end of the third pipeline is connected with the pressure transmitter, the top end of the cavity is provided with a first air, the bottom of the first piston is provided with a partition plate, an air hole is formed in the center of the partition plate, a second air cylinder is arranged at the bottom of the cavity, a second piston is arranged on an output shaft of the second air cylinder, and an O-shaped ring is arranged between the second piston and the inner wall of the cavity.
Furthermore, in order to ensure that the medium cannot flow back to cause accidents, the air inlet pipe, the liquid inlet pipe and the joint of the steam inlet pipe and the cavity are provided with one-way valves.
Further, in order to control the medium with the temperature out of a reasonable range to a reasonable temperature, the temperature control device comprises a shell, and a PLC (programmable logic controller) is arranged at the top end of the shell.
Further, in order to detect the temperature of the medium before entering the temperature control device, an LCD-110 type thermometer is arranged between the shell and the first pipeline.
Furthermore, in order to automatically control whether the medium can be led to the second pipeline, an electromagnetic valve is arranged between the shell and the second pipeline.
Further, in order to prevent that impurity from getting into pipeline one to influence check-up precision and equipment life, be provided with the filter screen between cavity and the pipeline one.
The utility model has the advantages that:
(1) according to the actual use environment, an air inlet pipe or a liquid inlet pipe or a steam inlet pipe is selected to lead a medium to a pipeline I through a cavity, the medium sequentially leads to the pipeline I, a temperature control device and a pipeline II, the medium reaches a standard meter and a pressure transmitter after passing through a tee joint, the pressure is regulated through a pressure regulating valve, the standard meter and the pressure transmitter are compared, the checking effect is achieved, the temperature of the medium can be detected, and equipment is protected.
(2) After the check-up was accomplished, when having gas in the pipeline, cylinder one was retrieved through retrieving drive piston one, through the gas recovery of air pressure difference in with the pipeline, reduced the pressure in the pipeline, when having liquid in the pipeline, cylinder two was retrieved through retrieving drive piston two, and liquid alright get into the bottom part of cavity, has retrieved liquid and has reduced the pressure in the pipeline.
(3) Through setting up check valve to guarantee that the medium can not flow back, cause the accident to take place.
(4) Through the temperature control device, the medium with the temperature out of a reasonable range is controlled to be at a reasonable temperature.
(5) A sensing unit is arranged between the shell and the first pipeline, so that the temperature of the medium can be detected before entering the temperature control device.
(6) And an electromagnetic valve is arranged between the shell and the second pipeline, so that whether the medium can be led to the second pipeline or not can be automatically controlled.
(7) Through be provided with the filter screen between cavity and the pipeline one to prevent that impurity from getting into pipeline one, and then influence check-up precision and equipment life.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is one of schematic structural diagrams of a calibration experiment device for a pressure transmitter according to an embodiment of the present invention;
fig. 2 is a second schematic structural diagram of a calibration experiment apparatus for a pressure transmitter according to an embodiment of the present invention;
fig. 3 is a partially enlarged view of a portion a of fig. 1.
In the figure:
1. an air inlet pipe; 2. a liquid inlet pipe; 3. a steam inlet pipe; 4. a cavity; 5. a one-way valve; 6. a first pipeline; 7. a temperature control device 701, a shell 702, a PLC 703, an LCD-110 thermometer 704 and an electromagnetic valve; 8. a second pipeline; 9. a pressure regulating valve 10 and a tee; 11. the system comprises a standard meter 12, a pipeline III 13, a pressure transmitter 14 and a cylinder I; 15. a first piston; 16. a partition plate; 17. air holes; 18. a second air cylinder; 19. a second piston 20 and an O-shaped ring; 21. and (5) filtering by using a filter screen.
Detailed Description
For further explanation of the embodiments, the drawings are provided as part of the disclosure and serve primarily to illustrate the embodiments and, together with the description, to explain the principles of operation of the embodiments, and to provide further explanation of the invention and advantages thereof, it will be understood by those skilled in the art that various other embodiments and advantages of the invention are possible, and that elements in the drawings are not to scale and that like reference numerals are generally used to designate like elements.
According to the utility model discloses an embodiment provides a check-up experimental apparatus for pressure transmitter.
Referring now to the drawings and the detailed description, as shown in fig. 1-3, a calibration experiment device for a pressure transmitter according to an embodiment of the present invention includes an air inlet pipe 1, the air inlet pipe 1 is connected to a chamber 4, a liquid inlet pipe 2 is disposed on the chamber 4 and adjacent to the air inlet pipe 1, a vapor inlet pipe 3 is disposed on the chamber 4 and opposite to the liquid inlet pipe 2, the chamber is connected to one end of a first pipe 6 at an opposite side of the air inlet pipe 1, the other end of the first pipe 6 is connected to one end of a temperature control device 7, the other end of the temperature control device 7 is connected to one end of a second pipe 8, a pressure regulating valve 9 is disposed at a middle end of the second pipe 8, the other end of the second pipe 8 is connected to a first end of a tee joint 10, and a second end of the tee joint 10 is connected to a standard meter 11, the third end of the tee joint 10 is connected with one end of a third pipeline 12, the other end of the third pipeline 12 is connected with a pressure transmitter 13, a first cylinder 14 is arranged at the top end of the cavity 4, a first piston 15 is arranged on an output shaft of the first cylinder 14, a partition plate 16 is arranged at the bottom end of the first piston 15, an air hole 17 is formed in the center of the partition plate 16, a second cylinder 18 is arranged at the bottom end of the cavity 4, a second piston 19 is arranged on an output shaft of the second cylinder 18, and an O-shaped ring 20 is arranged between the second piston 19 and the inner wall of the cavity 4.
With the help of the above technical scheme, the utility model discloses recoverable fluid medium avoids causing accident with the pressure release in the pipeline simultaneously, and can detect the temperature of medium, protective apparatus.
In one embodiment, the check valve 5 is arranged to ensure that the medium does not flow back and cause accidents.
In one embodiment, for the temperature control means 7 described above, the temperature control means 7 is arranged so as to control a medium whose temperature is not within a reasonable range to a reasonable temperature.
In one embodiment, for the above-mentioned housing 701, an LCD-110 type thermometer 703 is provided between the housing 701 and the first pipe 6, so that the temperature of the medium can be detected before entering the temperature control device 7.
In one embodiment, the housing 701 is provided with an electromagnetic valve 704 between the housing 701 and the second pipe 8, so that whether the medium can be led to the second pipe 8 can be automatically controlled.
In one embodiment, for the chamber 4, a filter screen 21 is arranged between the chamber 4 and the first pipeline 6, so that impurities are prevented from entering the first pipeline 6, and further the verification precision and the service life of the equipment are influenced.
The working principle is as follows: the utility model discloses when using, according to actual service environment, select intake pipe 1 or feed liquor pipe 2 or advance steam pipe 3 and lead to pipeline 6 to the medium through cavity 4, because of the blockking of check valve 5, the medium can not flow back, the medium is detecting the back by LCD-110 type thermometer 703, the temperature is suitable just can get into pipeline two 8 through solenoid valve 704, otherwise PLC controller 702 makes the medium close solenoid valve 704, the temperature reaches suitable number of degrees, PLC controller 702 controls solenoid valve 704 and opens, the medium reaches standard table 11 and pressure transmitter 13 after tee bend 10, through the pressure regulating valve 9 pressure regulating, compare standard table 11 and pressure transmitter 13, reach the effect of check-up.
To sum up, with the aid of the above technical scheme of the utility model, recoverable fluid medium avoids causing accident with the pressure release in the pipeline simultaneously, and can detect the temperature of medium, protective apparatus.
In addition, the one-way valve 5 is arranged, so that the medium is prevented from flowing back, and accidents are avoided. By arranging the temperature control device 7, the medium with the temperature out of a reasonable range is controlled to be at a reasonable temperature. An LCD-110 type thermometer 703 is arranged between the shell 701 and the first pipeline 6, so that the temperature of the medium can be detected before entering the temperature control device 7. By providing the solenoid 704 between the housing 701 and the second pipe 8, whether the medium can be introduced into the second pipe 8 can be automatically controlled. Through be provided with filter screen 21 between cavity 4 and pipeline 6 to prevent that impurity from getting into pipeline 6, and then influence check-up precision and equipment life.
In the present application, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed," and the like are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a check-up experimental apparatus for pressure transmitter, includes intake pipe (1), its characterized in that, intake pipe (1) is connected with cavity (4), on cavity (4) and be in intake pipe (1) adjacent side is provided with feed liquor pipe (2), on cavity (4) and with the side relative of feed liquor pipe (2) is provided with into steam pipe (3), on the cavity and in the relative one side of intake pipe (1) is connected with the one end of pipeline (6), the other end of pipeline (6) is connected with the one end of temperature control device (7), the other end of temperature control device (7) is connected with the one end of pipeline two (8), the middle-end of pipeline two (8) is provided with air-vent valve (9), the other end of pipeline two (8) is connected with the first end of tee bend (10), the second end and the standard table (11) of tee bend (10) are connected, the third end of tee bend (10) is connected with the one end of pipeline three (12), the other end and pressure transmitter (13) of pipeline three (12) are connected, the top of cavity (4) is provided with cylinder one (14), be provided with piston one (15) on the output shaft of cylinder one (14), the bottom of piston one (15) is provided with baffle (16), the central point of baffle (16) puts and is provided with gas pocket (17), the bottom of cavity (4) is provided with cylinder two (18), be provided with piston two (19) on the output shaft of cylinder two (18), piston two (19) with be provided with O type circle (20) between the inner wall of cavity (4).
2. The verification experiment device for the pressure transmitter as claimed in claim 1, wherein the connection parts of the air inlet pipe (1), the liquid inlet pipe (2) and the steam inlet pipe (3) and the cavity (4) are all provided with one-way valves (5).
3. Calibration experiment device for a pressure transmitter according to claim 1, characterized in that the temperature control device (7) comprises a housing (701), and the top end of the housing (701) is provided with a PLC controller (702).
4. A proof test device for a pressure transmitter according to claim 3, characterized in that a LCD-110 type thermometer (703) is arranged between the housing (701) and the first pipe (6).
5. A proof test device for a pressure transmitter according to claim 3, characterized in that a solenoid valve (704) is arranged between the housing (701) and the second conduit (8).
6. A verification experiment device for a pressure transmitter according to claim 1, characterized in that a filter screen (21) is arranged between the chamber (4) and the first pipe (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921481843.2U CN210322165U (en) | 2019-09-07 | 2019-09-07 | A check-up experimental apparatus for pressure transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921481843.2U CN210322165U (en) | 2019-09-07 | 2019-09-07 | A check-up experimental apparatus for pressure transmitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210322165U true CN210322165U (en) | 2020-04-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921481843.2U Expired - Fee Related CN210322165U (en) | 2019-09-07 | 2019-09-07 | A check-up experimental apparatus for pressure transmitter |
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| Country | Link |
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| CN (1) | CN210322165U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111649869A (en) * | 2020-06-23 | 2020-09-11 | 西安航天计量测试研究所 | Non-contact pressure measuring method and system based on strain and temperature sensors |
-
2019
- 2019-09-07 CN CN201921481843.2U patent/CN210322165U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111649869A (en) * | 2020-06-23 | 2020-09-11 | 西安航天计量测试研究所 | Non-contact pressure measuring method and system based on strain and temperature sensors |
| CN111649869B (en) * | 2020-06-23 | 2021-10-15 | 西安航天计量测试研究所 | Non-contact pressure measuring method and system based on strain and temperature sensors |
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| Date | Code | Title | Description |
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| 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: 20200414 Termination date: 20210907 |