CN211401967U - Pressure drop test system - Google Patents
Pressure drop test system Download PDFInfo
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- CN211401967U CN211401967U CN201922177256.0U CN201922177256U CN211401967U CN 211401967 U CN211401967 U CN 211401967U CN 201922177256 U CN201922177256 U CN 201922177256U CN 211401967 U CN211401967 U CN 211401967U
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Abstract
The utility model discloses a pressure drop test system, which comprises a medium box for storing liquid medium; the circulating pipeline is connected between the medium box and the test piece; the temperature adjusting module is arranged in the medium box and used for detecting and adjusting the temperature of the liquid medium in the circulating pipeline; the flow regulating module is connected to the circulating pipeline between the medium box and the test piece and is used for circularly flowing the liquid medium in the medium box through the test piece and detecting and regulating the flow of the liquid medium in the circulating pipeline; the pressure adjusting module is used for detecting the pressure of the liquid medium in the circulating pipeline and adjusting the pressure of the liquid medium in the circulating pipeline in a way of being matched with the flow adjusting module; and the pressure drop detection module is connected with the inlet end and the outlet end of the test piece and is used for detecting the pressure difference of the liquid medium flowing through the inlet end and the outlet end of the test piece. The utility model relates to a rationally, the principle is simple, accuse pressure precision is high, accuse pressure is stable, the practicality is strong.
Description
Technical Field
The utility model relates to a pressure drop test technical field especially relates to a pressure drop test system.
Background
In order to improve the use safety of the automobile pipe fitting, after the automobile pipe fitting is produced, various performances of the automobile pipe fitting can be tested, and a pressure drop test of the pipe fitting (test piece) is one mode, wherein a liquid medium with certain pressure, flow and temperature circularly flows into the test piece to simulate a real use scene so as to test the pressure difference (pressure drop test) at two ends of the test piece. Most of the existing devices for detecting the pressure difference at two ends of the test piece adopt a circulating pump or a booster pump to control the pressure of a liquid medium, so that the pressure is unstable, the pressure control precision is poor, meanwhile, the working principle of the device is complex, the pressure difference detection data is inaccurate, the occupied area of the device is large, and the test cost is high.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a pressure drop test system, this system reasonable in design, principle are simple, can carry out dual regulation to the pressure of the liquid medium through the test piece through mutually supporting of air feed unit and circulating pump, and the accuse is pressed the precision height, the accuse and is pressed stably, simultaneously, still can realize the accurate regulation to the temperature of liquid medium and flow, and then can improve experimental precision, and area is little, with low costs, the practicality is strong.
In order to realize the purpose, the following technical scheme is adopted:
a pressure drop test system includes a media tank for storing a liquid media; the circulating pipeline is connected between the outlet end of the medium box and the inlet end of the test piece, and between the outlet end of the test piece and the inlet end of the medium box; the temperature adjusting module is arranged in the medium box and used for detecting and adjusting the temperature of the liquid medium in the circulating pipeline; the flow regulating module is connected to the circulating pipeline between the medium box and the test piece and is used for circularly flowing the liquid medium in the medium box through the test piece and detecting and regulating the flow of the liquid medium in the circulating pipeline; the pressure adjusting module is used for detecting the pressure of the liquid medium in the circulating pipeline and adjusting the pressure of the liquid medium in the circulating pipeline in a way of being matched with the flow adjusting module; and the pressure drop detection module is connected with the inlet end and the outlet end of the test piece and is used for detecting the pressure difference of the liquid medium flowing through the inlet end and the outlet end of the test piece.
Further, the pressure drop detection module comprises a differential pressure sensor connected between an inlet end and an outlet end of the test piece; and a valve block is respectively connected between the inlet end of the test piece and the outlet end of the medium box and between the outlet end of the test piece and the inlet end of the medium box.
Further, the pressure adjusting module comprises an air supply unit communicated with the medium box and a first pressure sensor connected between the outlet end of the medium box and the inlet end of the test piece; the air supply unit is used for applying air pressure to the liquid medium in the medium box so as to adjust the pressure of the liquid medium in the circulating pipeline; the first pressure sensor is used for detecting the pressure of the liquid medium flowing through the test piece.
Further, the air supply unit comprises an air source, a first filter and an electric proportional valve which are sequentially connected between the air source and the medium box; the first filter is used for filtering the gas medium provided by the gas source, and the electric proportional valve is used for regulating the pressure of the gas medium and outputting the gas medium into the medium box.
Further, the pressure regulating module further comprises a diverter valve, one end of the diverter valve is connected between the first pressure sensor and the outlet end of the medium box, and the other end of the diverter valve is connected between the outlet end of the test piece and the inlet end of the medium box.
Further, the flow regulating module comprises a circulating pump and a flowmeter which are sequentially connected between the outlet end of the medium box and the inlet end of the test piece; the circulating pump is used for enabling the liquid medium in the medium box to circularly flow through the test piece and adjusting the pressure of the liquid medium in the circulating pipeline in a manner of being matched with the pressure adjusting module, and the flowmeter is used for detecting the flow of the liquid medium flowing through the test piece.
Furthermore, the temperature adjusting module comprises a heater and a first temperature sensor which are arranged in the medium box, and a second temperature sensor which is connected to the inlet end of the test piece.
Further, a liquid level meter is further arranged in the medium box and used for detecting the residual storage amount of the medium liquid in the medium box.
Furthermore, the pressure drop test system also comprises a test bin, the test piece is arranged in the test bin, and a first stop valve and a second filter are sequentially connected between the test bin and the medium box.
Adopt above-mentioned scheme, the beneficial effects of the utility model are that:
reasonable in design, principle are simple, can carry out dual regulation to the pressure of the liquid medium through the test piece through mutually supporting of air feed unit and circulating pump, and accuse pressure precision is high, accuse pressure is stable, simultaneously, still can realize the accurate regulation to the temperature and the flow of liquid medium, and then can improve experimental precision, and area is little, with low costs, the practicality is strong.
Drawings
FIG. 1 is a schematic diagram of the present invention;
wherein the figures identify the description:
1-a media box; 2-a circulation pipeline;
3-temperature regulating module; 4-a pressure regulation module;
5-flow regulating module; 6, a pressure drop detection module;
7, testing a sample; 8-a liquid level meter;
9-a test bin; 10-a first stop valve;
11 — a second filter; 12-a third filter;
13-a fourth filter; 31-a heater;
32 — a first temperature sensor; 33 — a second temperature sensor;
41-a gas source; 42 — a first filter;
43-electric proportional valve; 44 — a first pressure sensor;
45-a diverter valve; 51-a circulation pump;
52-a flow meter; 61-differential pressure sensor;
62-valve block.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1, the present invention provides a pressure drop test system, which includes a medium tank 1 for storing a liquid medium; the circulating pipeline 2 is connected between the medium box 1 and the test piece 7; the temperature adjusting module 3 is arranged in the medium box 1 and used for detecting and adjusting the temperature of the liquid medium in the circulating pipeline 2; the flow regulating module 5 is connected to the circulating pipeline 2 between the medium box 1 and the test piece 7 and is used for circularly flowing the liquid medium in the medium box 1 through the test piece 7 and detecting and regulating the flow of the liquid medium in the circulating pipeline 2; the pressure adjusting module 4 is used for detecting and adjusting the pressure of the liquid medium in the circulating pipeline 2 and is matched with the flow adjusting module 5 to adjust the pressure of the liquid medium in the circulating pipeline 2; and the pressure drop detection module 6 is connected with the inlet end and the outlet end of the test piece 7 and is used for detecting the pressure difference of the liquid medium flowing through the inlet end and the outlet end of the test piece 7.
In the embodiment, the pressure of the liquid medium flowing through the test piece 7 is doubly regulated by the mutual matching of the pressure regulating module 4 and the flow regulating module 5, so that the pressure control precision is high, and the pressure control is stable; meanwhile, the temperature and the flow of the liquid medium in the circulating pipeline 2 can be adjusted to meet the real use scene of the simulated test piece 7, and the test precision is improved; the pressure drop detection module 6 is connected to two ends (inlet end and outlet end) of the test piece 7, so that the pressure difference of the liquid medium flowing through the inlet end and the outlet end of the test piece 7 can be detected in real time, the detection effect is good, and the detection precision is high; in order to avoid leakage of the liquid medium, the circulating pipeline 2 is made of rustproof and anticorrosive stainless steel materials, a first stop valve 10 and a second filter 11 are sequentially arranged between a test bin 9 for placing a test piece 7 and the medium box 1, when the liquid medium leaks from the test piece 7 or after a test is finished, the leaked liquid medium can be recycled to the medium box 1 through the first stop valve 10, the second filter 11 can filter the liquid medium, impurities are prevented from flowing back to the medium box 1, the liquid medium is recycled, and the resource utilization rate is improved; in addition, medium case 1 bottom still is connected with the blowoff valve, and after the experiment, accessible blowoff valve discharges liquid medium to the external world.
Preferably, the pressure drop detection module 6 comprises a differential pressure sensor 61 connected between the inlet end and the outlet end of the test piece 7; and a valve block 62 is respectively connected between the inlet end of the test piece 7 and the outlet end of the medium box 1, and between the outlet end of the test piece 7 and the inlet end of the medium box 1. The differential pressure sensor 61 is a sensor for measuring a difference between two pressures, is generally used for measuring a pressure difference between the front end and the rear end of a certain device or component, is convenient to install, has high detection precision, can accurately detect the pressure difference between the two ends of the test piece 7 by connecting the differential pressure sensor between the two ends (inlet end and outlet end) of the test piece 7, and has good detection effect and high detection precision; meanwhile, a valve block 62 is respectively connected between the inlet end and the outlet end of the test piece 7 and the medium box 1, and the valve block 62 can effectively avoid test errors caused by the flow resistance of the circulating pipeline 2, so that the test precision is further improved.
Preferably, the pressure regulating module 4 comprises an air supply unit communicated with the medium box 1, and a first pressure sensor 44 connected between the outlet end of the medium box 1 and the inlet end of the test piece 7; the air supply unit is used for applying air pressure to the liquid medium in the medium box 1 so as to adjust the pressure of the liquid medium in the circulating pipeline 2; the first pressure sensor 44 is used for detecting the pressure of the liquid medium flowing through the test piece 7; the air supply unit comprises an air source 41, a first filter 42 and an electric proportional valve 43, wherein the first filter 42 and the electric proportional valve 43 are sequentially connected between the air source 41 and the medium box 1; the first filter 42 is used for filtering the gas medium provided by the gas source 41, and the electric proportional valve 43 is used for regulating the pressure of the gas medium and outputting the gas medium into the medium box 1.
In the embodiment, the air supply unit applies air pressure to the liquid medium in the medium box 1 so as to adjust the pressure of the liquid medium in the circulating pipeline 2, so that the pressure adjustment is more stable; specifically, the air source 41 may be an air compressor or the like, and the gas medium is compressed air; the air source 41 is connected with an electric proportional valve 43 through a first filter 42, and the electric proportional valve 43 is hermetically connected with the medium box 1 through an air supply port of the medium box 1; the first filter 42 can filter the gas medium provided by the gas source 41, so as to prevent impurities from entering the electric proportional valve 43 and causing blockage; the pressure of the gas medium is regulated (the stability of the air pressure is ensured) through the electric proportional valve 43, the gas medium after pressure regulation flows into the medium box 1 through the air supply port, so that the pressure is generated on the liquid medium in the medium box 1, and the pressure regulation on the liquid medium in the test piece 7 can be realized because the medium box 1 and the circulating pipeline 2 are completely sealed; meanwhile, the pressure of the liquid medium flowing into the test piece 7 can be detected in real time by the first pressure sensor 44 at the inlet end of the test piece 7, and the detection result is fed back to the background, so that the background can perform real-time pressure regulation through the electric proportional valve 43, and the pressure stability of the liquid medium is ensured.
In order to further ensure the pressure stability of the liquid medium, the pressure regulating module 4 further includes a diverter valve 45, one end of the diverter valve 45 is connected between the first pressure sensor 44 and the outlet end of the medium box 1, and the other end of the diverter valve 45 is connected between the outlet end of the test piece 7 and the inlet end of the medium box 1. When the pressure of the liquid medium flowing through the test piece 7 is too large or unstable, the liquid medium flowing into the test piece 7 can be divided by the dividing valve 45, so that the purpose of adjusting the pressure of the liquid medium is achieved, and the pressure stability of the liquid medium is further ensured.
Preferably, the flow regulating module 5 comprises a circulating pump 51 and a flow meter 52 which are sequentially connected between the outlet end of the medium box 1 and the inlet end of the test piece 7; the circulating pump 51 is used for enabling the liquid medium in the medium box 1 to circularly flow through the test piece 7 and is matched with the pressure adjusting module 4 to adjust the pressure of the liquid medium in the circulating pipeline 2, and the flow meter 52 is used for detecting the flow rate of the liquid medium flowing through the test piece 7; the circulating pump 51 can enable the liquid medium in the medium box 1 to circularly flow through the test piece 7 and is matched with the pressure adjusting module 4 to realize double adjustment of the pressure of the liquid medium, so that the pressure adjustment is more stable; the flowmeter 52 can detect the flow rate of the liquid medium flowing into the test piece 7 and feed back the detection result to the background so as to control the power of the circulating pump 51 by the background and further adjust the flow rate of the liquid medium in the circulating pipeline 2, meanwhile, a third filter 12 is connected between the outlet end of the test piece 7 and the inlet end of the medium box 1, and the third filter 12 can filter the liquid medium in the circulating pipeline 2 to prevent impurities from flowing into the medium box 1; still be connected with fourth filter 13 between the exit end of circulating pump 51 and medium tank 1, fourth filter 13 can avoid impurity to flow into circulating pump 51, leads to blockking up, influences the test result.
Preferably, the temperature adjustment module 3 includes a heater 31 and a first temperature sensor 32 built in the medium box 1, and a second temperature sensor 33 connected to the inlet end of the test piece 7. In the embodiment, the heater 31 adopts a heating wire, the heating wire is uniform in heating, good in heating effect, energy-saving and electricity-saving, and can realize rapid heating of the liquid medium, the first temperature sensor 32 can detect the temperature of the liquid medium in the medium box 1 in real time and feed back the temperature to the background, and when the temperature of the liquid medium is higher than a preset value, the background controls the heating wire to stop heating, so that the test safety is improved; the second temperature sensor 33 can detect the temperature of the liquid medium flowing into the test piece 7 in real time, and feed back the detection result to the background, and the background can realize the temperature adjustment of the liquid medium by controlling the heating power of the heater 31, so that the working scene that the liquid medium at different temperatures flows through the test piece 7 can be simulated; in addition, still be equipped with level gauge 8 in the medium box 1, level gauge 8 adopts capacitanc level gauge 8, and capacitanc level gauge 8 simple to operate, detection precision are high to the surplus of the liquid medium in the observable medium box 1 that can be directly perceived, so that the staff in time supplements.
In addition, the system control is controlled by the existing PLC, and the improvement of the computer software technology is not involved.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. A pressure drop test system is characterized by comprising
A medium tank for storing a liquid medium;
the circulating pipeline is connected between the outlet end of the medium box and the inlet end of the test piece, and between the outlet end of the test piece and the inlet end of the medium box;
the temperature adjusting module is arranged in the medium box and used for detecting and adjusting the temperature of the liquid medium in the circulating pipeline;
the flow regulating module is connected to the circulating pipeline between the medium box and the test piece and is used for circularly flowing the liquid medium in the medium box through the test piece and detecting and regulating the flow of the liquid medium in the circulating pipeline;
the pressure adjusting module is used for detecting the pressure of the liquid medium in the circulating pipeline and adjusting the pressure of the liquid medium in the circulating pipeline in a way of being matched with the flow adjusting module;
and the pressure drop detection module is connected with the inlet end and the outlet end of the test piece and is used for detecting the pressure difference of the liquid medium flowing through the inlet end and the outlet end of the test piece.
2. A pressure drop test system as set forth in claim 1 wherein said pressure drop sensing module includes a differential pressure sensor connected between the inlet end and the outlet end of the test piece; and a valve block is respectively connected between the inlet end of the test piece and the outlet end of the medium box and between the outlet end of the test piece and the inlet end of the medium box.
3. The pressure drop test system of claim 2, wherein the pressure regulation module comprises a gas supply unit in communication with the media tank, and a first pressure sensor connected between the outlet end of the media tank and the inlet end of the test piece; the air supply unit is used for applying air pressure to the liquid medium in the medium box so as to adjust the pressure of the liquid medium in the circulating pipeline; the first pressure sensor is used for detecting the pressure of the liquid medium flowing through the test piece.
4. The pressure drop test system of claim 3, wherein the gas supply unit comprises a gas source, a first filter sequentially connected between the gas source and the media tank, and an electric proportional valve; the first filter is used for filtering the gas medium provided by the gas source, and the electric proportional valve is used for regulating the pressure of the gas medium and outputting the gas medium into the medium box.
5. A pressure drop test system as claimed in claim 4, wherein the pressure regulation module further comprises a diverter valve, one end of the diverter valve being connected between the first pressure sensor and the outlet end of the media tank, the other end of the diverter valve being connected between the outlet end of the test piece and the inlet end of the media tank.
6. The pressure drop test system of claim 5, wherein the flow regulation module comprises a circulation pump and a flow meter sequentially connected between the outlet end of the media tank and the inlet end of the test piece; the circulating pump is used for enabling the liquid medium in the medium box to circularly flow through the test piece and adjusting the pressure of the liquid medium in the circulating pipeline in a manner of being matched with the pressure adjusting module, and the flowmeter is used for detecting the flow of the liquid medium flowing through the test piece.
7. A pressure drop test system as set forth in claim 6, wherein said temperature conditioning module includes a heater and a first temperature sensor built into the media tank, and a second temperature sensor connected to the inlet end of the test piece.
8. A pressure drop test system as set forth in claim 1, wherein a liquid level gauge is further disposed in the media tank for sensing a remaining reserve of media liquid in the media tank.
9. A pressure drop test system as claimed in claim 1, further comprising a test chamber, wherein the test piece is placed in the test chamber, and a first stop valve and a second filter are sequentially connected between the test chamber and the media box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922177256.0U CN211401967U (en) | 2019-12-05 | 2019-12-05 | Pressure drop test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922177256.0U CN211401967U (en) | 2019-12-05 | 2019-12-05 | Pressure drop test system |
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| CN211401967U true CN211401967U (en) | 2020-09-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114720087A (en) * | 2022-03-22 | 2022-07-08 | 山东核电设备制造有限公司 | Real current testing device and method for high-voltage throttling device for nuclear power |
-
2019
- 2019-12-05 CN CN201922177256.0U patent/CN211401967U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114720087A (en) * | 2022-03-22 | 2022-07-08 | 山东核电设备制造有限公司 | Real current testing device and method for high-voltage throttling device for nuclear power |
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