CN217953768U - Static pressure calibration device for differential pressure transmitter - Google Patents
Static pressure calibration device for differential pressure transmitter Download PDFInfo
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- CN217953768U CN217953768U CN202222353445.0U CN202222353445U CN217953768U CN 217953768 U CN217953768 U CN 217953768U CN 202222353445 U CN202222353445 U CN 202222353445U CN 217953768 U CN217953768 U CN 217953768U
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Abstract
The utility model relates to a static pressure calibration technical field, and a differential pressure transmitter static pressure calibrating device is disclosed, including detecting the body, differential pressure transmitter, detect the top fixedly connected with display screen of body, detect the inside fixedly connected with static pressure sensor of body, the scavenge port has been seted up to the rear end of detecting the body, the other end fixedly connected with vacuum pump of scavenge port, detect the side fixedly connected with aspiration pump of body, differential pressure transmitter's one end has been seted up the air inlet, the other end fixedly connected with air inlet of aspiration pump, be connected with the display screen wire through static pressure sensor, pass to the display screen through the wire after making static pressure sensor acquire the inside static pressure data of detection body, carry out the digital display with the detected data by the display screen, the convenience is observed the detected data, thereby make things convenient for the static pressure data contrast with differential pressure transmitter detects, in order to reach calibration differential pressure transmitter's purpose, the equipment that uses is few, moreover, the steam generator is simple structure, great reduction makes required cost.
Description
Technical Field
The utility model relates to a static pressure calibration technical field specifically is a differential pressure transmitter static pressure calibrating device.
Background
The differential pressure transmitter is a typical self-balancing detecting instrument, and utilizes the working principle of negative feedback to overcome the influence of adverse factors of element material and processing technology, etc. the differential pressure transmitter is used for preventing medium in the pipeline from directly entering into the transmitter, and the pressure sensing diaphragm is connected with the transmitter by means of fluid-filled capillary tube. It is used to measure the liquid level, flow and pressure of liquid, gas or steam, and then convert it into 4-20 mADC signal output.
In view of the above, chinese patent No. CN208902338U proposes a high static pressure differential pressure transmitter detection device, but when the detection device of the above patent is used for detection, many devices are required in the detection process, which is complicated and has high manufacturing cost, and meanwhile, the good air tightness at the connection of the detection device cannot be ensured, and detection is prone to generate errors.
SUMMERY OF THE UTILITY MODEL
The utility model provides a to prior art not enough, the utility model provides a differential pressure transmitter static pressure calibrating device possesses simple structure low in manufacturing cost, connects the leakproofness good, advantages such as easy operation.
For realizing above-mentioned simple structure low in manufacturing cost, it is good to connect the leakproofness, easy operation's purpose, the utility model provides a following technical scheme: the utility model provides a differential pressure transmitter static pressure calibrating device, includes and detects the body, differential pressure transmitter, the top fixedly connected with display screen of detecting the body, the inside fixedly connected with static pressure sensor of detecting the body, the scavenge port has been seted up to the rear end of detecting the body, and the other end fixedly connected with vacuum pump of scavenge port, the side fixedly connected with aspiration pump of detecting the body, the air inlet has been seted up to differential pressure transmitter's one end, the other end fixedly connected with air inlet of aspiration pump.
Further, the bottom end of the detection body is fixedly connected with a first supporting rod.
Further, a first electromagnetic valve is arranged inside the scavenging port.
Further, a second electromagnetic valve is arranged inside the air inlet.
Furthermore, the bottom end of the differential pressure transmitter is fixedly connected with a flat plate, and the bottom end of the flat plate is fixedly connected with a hydraulic telescopic rod.
To sum up, the utility model has the advantages of simple structure low in manufacturing cost connects the leakproofness good, easy operation etc
Compared with the prior art, the utility model provides a differential pressure transmitter static pressure calibrating device possesses following beneficial effect:
1. this differential pressure transmitter static pressure calibrating device, through static pressure sensor and display screen electric connection, its electric connection mode is the wire connection, pass to the display screen through the wire after making static pressure sensor obtain the inside static pressure data of detection body, carry out the digital display by the display screen with the data detected, the convenience is observed the data detected, thereby the static pressure data contrast that convenient and differential pressure transmitter detected, in order to reach calibration differential pressure transmitter's purpose, the equipment that uses is few, moreover, the steam generator is simple in structure, great reduction makes required cost.
2. This differential pressure transmitter static pressure calibrating device, through opening the vacuum pump, the vacuum pump will detect the inside gas of body and discharge to change the inside static pressure state of detection body, inside the gas extraction pump will detect the inside gas after being taken out from by the vacuum pump of body and extract to differential pressure transmitter inside, make things convenient for differential pressure transmitter to measure, simple structure, thereby easy operation reaches the purpose that the check-up detected static pressure.
Drawings
FIG. 1 is a schematic view of the present invention;
fig. 2 is a schematic structural diagram of the present invention.
In the figure: 1. detecting a body; 2. a display screen; 3. a ventilation port; 4. a first solenoid valve; 5. a vacuum pump; 6. an air pump; 7. a second solenoid valve; 8. a differential pressure transmitter; 9. a static pressure sensor; 10. an air inlet; 11. a flat plate; 12. a first support bar; 13. a hydraulic telescopic rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-2, a static pressure calibration device for a differential pressure transmitter comprises a detection body 1, a differential pressure transmitter 8, and a first support rod 12 fixedly connected to the bottom end of the detection body 1, wherein the detection body 1 can be more firmly and conveniently placed without occupying ground space by fixing the first support rod 12.
The top fixedly connected with display screen 2 of detecting body 1, the inside fixedly connected with static pressure sensor 9 of detecting body 1, static pressure sensor 9 is the indoor static pressure sensor of siemens QBM2030-5 of common sale on the market, do not do too much to describe here, static pressure sensor 9 and 2 electric connection of display screen, its electric connection mode is the wire connection, make static pressure sensor 9 obtain and pass to display screen 2 through the wire behind the inside static pressure data of detecting body 1, carry out the digital display with the detected data by display screen 2, conveniently observe the detected data, thereby conveniently compare with the static pressure data that differential pressure transmitter 8 detected, in order to reach the purpose of calibration differential pressure transmitter 8, the equipment of use is few, moreover, the steam generator is simple in structure, great reduction the required cost of manufacturing.
Detect the rear end of body 1 and seted up the scavenge port 3, the inside of scavenge port 3 is provided with first solenoid valve 4, set up the scavenge port 3 and make things convenient for taking out and getting into the inside gas of detection body 1, also conveniently detect body 1 dress and connect other devices, the switch of scavenge port 3 is controlled to first solenoid valve 4 circular telegram back, thereby can conveniently detect the inside gas outgoing of body 1 and get into, it is better to need not too much complicated structure to make and detect 1 internal seal nature of body, let the detection data more accurate.
The other end fixedly connected with vacuum pump 5 of scavenge port 3, when opening vacuum pump 5, vacuum pump 5 will detect the inside gas of body 1 and discharge to change the inside static pressure state of detecting body 1.
Side fixedly connected with aspiration pump 6 of detection body 1, aspiration pump 6 can be with the inside gas after being taken out from by vacuum pump 5 of detection body 1 inside extract to differential pressure transmitter 8 inside, make things convenient for differential pressure transmitter 8 to measure.
Air inlet 10 has been seted up to differential pressure transmitter 8's one end, the inside of air inlet 10 is provided with second solenoid valve 7, the other end fixedly connected with air inlet 10 of aspiration pump 6, second solenoid valve 7 can the gaseous business turn over of controlled gas, it is better to let differential pressure transmitter 8 internal seal nature, it is more accurate to measure, difficult production error, aspiration pump 6 and air inlet 10 fixed connection make things convenient for directly to detect other transmission to differential pressure transmitter 8 insidely, save the time that the check-up was spent.
Differential pressure transmitter 8's bottom fixedly connected with is dull and stereotyped 11, dull and stereotyped 11 bottom fixedly connected with hydraulic telescoping rod 13, place differential pressure transmitter 8 through dull and stereotyped 11, let differential pressure transmitter 8 place more stable, also conveniently remove differential pressure transmitter 8, easy operation promotes check efficiency, hydraulic telescoping rod 13 controls dull and stereotyped 11 height, thereby can place the differential pressure transmitter 8 of multiple model size, let the device can check up multiple differential pressure transmitter 8, the usability of the device is put forward.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a differential pressure transmitter static pressure calibrating device, includes detection body (1), differential pressure transmitter (8), its characterized in that: the air exhaust device is characterized in that a display screen (2) is fixedly connected to the top end of the detection body (1), a static pressure sensor (9) is fixedly connected to the inside of the detection body (1), a scavenging port (3) is formed in the rear end of the detection body (1), a vacuum pump (5) is fixedly connected to the other end of the scavenging port (3), an air inlet (10) is formed in the side end of the detection body (1), and an air inlet (10) is formed in one end of a differential pressure transmitter (8) and is fixedly connected to the other end of the air pump (6).
2. The differential transmitter static pressure calibration device of claim 1, wherein: the bottom end of the detection body (1) is fixedly connected with a first supporting rod (12).
3. The differential transmitter static pressure calibration device of claim 1, wherein: and a first electromagnetic valve (4) is arranged in the scavenging port (3).
4. The differential transmitter static pressure calibration device of claim 1, wherein: and a second electromagnetic valve (7) is arranged in the air inlet (10).
5. The differential transmitter static pressure calibration device of claim 1, wherein: the bottom end of the differential pressure transmitter (8) is fixedly connected with a flat plate (11), and the bottom end of the flat plate (11) is fixedly connected with a hydraulic telescopic rod (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222353445.0U CN217953768U (en) | 2022-09-05 | 2022-09-05 | Static pressure calibration device for differential pressure transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222353445.0U CN217953768U (en) | 2022-09-05 | 2022-09-05 | Static pressure calibration device for differential pressure transmitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217953768U true CN217953768U (en) | 2022-12-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222353445.0U Active CN217953768U (en) | 2022-09-05 | 2022-09-05 | Static pressure calibration device for differential pressure transmitter |
Country Status (1)
| Country | Link |
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| CN (1) | CN217953768U (en) |
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2022
- 2022-09-05 CN CN202222353445.0U patent/CN217953768U/en active Active
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