CN211401653U - Refrigerating valve performance testing device - Google Patents
Refrigerating valve performance testing device Download PDFInfo
- Publication number
- CN211401653U CN211401653U CN202020108183.XU CN202020108183U CN211401653U CN 211401653 U CN211401653 U CN 211401653U CN 202020108183 U CN202020108183 U CN 202020108183U CN 211401653 U CN211401653 U CN 211401653U
- Authority
- CN
- China
- Prior art keywords
- valve
- interface
- pipeline
- flowmeter
- exhaust
- 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.)
- Expired - Fee Related
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 36
- 238000005057 refrigeration Methods 0.000 claims abstract description 20
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000005259 measurement Methods 0.000 claims abstract description 7
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 7
- 239000007789 gas Substances 0.000 description 6
- 239000003507 refrigerant Substances 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 210000003437 trachea Anatomy 0.000 description 1
Images
Landscapes
- Examining Or Testing Airtightness (AREA)
Abstract
A performance testing device for a refrigeration valve comprises an air inlet unit, an air exhaust unit, a valve fixing base, a thermal expansion valve setting unit and a flow measuring unit; the air inlet unit comprises a nitrogen cylinder, a first stop valve, a pressure reducing valve, an air storage tank, a first pressure gauge, a second stop valve and a first connector which are sequentially connected through a pipeline; the exhaust unit comprises an exhaust valve, and the exhaust valve is connected to a pipeline between the first pressure gauge and the second stop valve of the air inlet unit through a pipeline; the valve fixing base is used for fixing a refrigeration valve except the thermostatic expansion valve; the thermostatic expansion valve setting unit comprises a thermostatic expansion valve fixing base, a thermostatic bath, a second interface, a third stop valve, a second pressure gauge and an adjusting needle valve which are sequentially connected through pipelines; the flow measurement unit comprises more than two interfaces and more than two flowmeters with different measuring ranges, and each interface is connected with one flowmeter through a pipeline. The test required in various refrigeration valve standards can be completed by adopting a set of device; the operation is convenient.
Description
Technical Field
The utility model belongs to the physical field relates to detection device, especially relates to a refrigeration valve capability test device.
Background
The refrigerating valve is an important component of a refrigerating system and mainly comprises a thermal expansion valve, a four-way reversing valve, an electronic expansion valve and a refrigerating electromagnetic valve.
The thermostatic expansion valve is an automatic expansion valve, which utilizes the superheat degree of the refrigerant vapor at the outlet of the evaporator to adjust the opening degree of a valve hole so as to adjust the liquid supply amount and the superheat degree of the refrigerant gas at the outlet of the evaporator to act. The four-way reversing valve is a valve part used for changing the flow direction of a refrigerant in a heat pump type air conditioner refrigerating device and performs the switching between refrigeration and heating. The electronic expansion valve controls the voltage or current applied to the expansion valve by using the electric signal generated by the regulated parameter, thereby achieving the purpose of regulating the liquid supply amount. The refrigeration electromagnetic valve is suitable for a system without pressure difference or low pressure, the pulse electromagnetic valve inputs a positive pulse signal to a coil in the electromagnetic valve body through a lead, and the working magnetic flux generated by the coil causes the movable core to be attracted and opens the valve.
The tests involved with such valves typically include high and low pressure differentials, internal leakage, and the like. The thermal expansion valve for JB/T3548 refrigeration, the electromagnetic valve for JB/T4119 refrigeration, the four-way electromagnetic reversing valve for JB/T7230 heat pump, the stop valve for JB/T7245 refrigeration device and the direct-acting electronic expansion valve for JB/T10212 refrigeration air conditioner respectively define devices required by different valve elements for testing. It is necessary to design a kit to perform the tests required in the relevant valve standards.
SUMMERY OF THE UTILITY MODEL
The utility model provides an above-mentioned problem, a refrigeration valve capability test device is provided.
The purpose of the utility model can be realized by the following technical scheme: a performance testing device for a refrigeration valve comprises an air inlet unit, an air exhaust unit, a valve fixing base, a thermal expansion valve setting unit and a flow measuring unit; the air inlet unit comprises a nitrogen cylinder, a first stop valve, a pressure reducing valve, an air storage tank, a first pressure gauge, a second stop valve and a first connector which are sequentially connected through a pipeline; the exhaust unit comprises an exhaust valve, and the exhaust valve is connected to a pipeline between a first pressure gauge and a second stop valve of the air inlet unit through a pipeline; the valve fixing base is used for fixing a refrigeration valve except the thermostatic expansion valve; the thermostatic expansion valve setting unit comprises a thermostatic expansion valve fixing base, a thermostatic bath, a second interface, a third stop valve, a second pressure gauge and an adjusting needle valve which are sequentially connected through pipelines; the flow measurement unit comprises more than two interfaces and more than two flowmeters with different measuring ranges, and each interface is connected with one flowmeter through a pipeline.
Furthermore, the flow measurement unit comprises a third interface, a fourth interface, a fifth interface, a first flowmeter, a second flowmeter and a third flowmeter, wherein the third interface is connected with the first flowmeter through a pipeline, the fourth interface is connected with the second flowmeter through a pipeline, and the fifth interface is connected with the third flowmeter through a pipeline.
Compared with the prior art, the beneficial effects of the utility model are that: the method can be completed by adopting a set of devices: a thermal expansion valve static superheat degree adjusting range test, a factory static superheat degree adjusting test, a choke inner leakage test and an outer balance pipe inner leakage test; the hot four-way reversing valve is subjected to a maximum reversing differential pressure test, a minimum reversing differential pressure test and an internal leakage test; an electronic expansion valve leakage test, a valve opening pulse test, an air flow characteristic test and a maximum action pressure difference test are used for refrigeration; the method comprises a refrigeration solenoid valve internal leakage amount test, a maximum valve opening differential pressure test and a minimum valve opening differential pressure test. The connection of the interface adopts the quick connector connection of the air pipe, and the operation is convenient.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
The components in the figures are labeled as follows:
1 Nitrogen cylinder
2 pressure reducing valve
3 gas storage tank
4 exhaust valve
5 valve fixing base
6 thermal expansion valve unable adjustment base
7 constant temperature bath
8-regulating needle valve
First interface J1
Second interface J2
Third interface J3
Fourth interface J4
Fifth interface J5
First cut-off valve V1
Second stop valve V2
Third stop valve V3
First pressure gauge P1
Second pressure gauge P2
First flowmeter Q1
Second flow meter Q2
And a third flow meter Q3.
Detailed Description
The following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings to make it clear to those skilled in the art how to practice the invention. While the invention has been described in connection with its preferred embodiments, these embodiments are intended to be illustrative, and not to limit the scope of the invention.
Referring to fig. 1, a performance testing device for a refrigeration valve includes an air inlet unit, an air outlet unit, a valve fixing base 5, a thermal expansion valve setting unit, and a flow measuring unit.
The air inlet unit comprises a nitrogen cylinder 1, a first stop valve V1, a pressure reducing valve 2, an air storage tank 3, a first pressure gauge P1, a second stop valve V2 and a first connector J1 which are sequentially connected through pipelines.
The exhaust unit comprises an exhaust valve 4, and the exhaust valve 4 is connected to a pipeline between a first pressure gauge P1 and a second stop valve V2 of the air inlet unit through a pipeline.
The valve fixing base 5 is used for fixing various refrigeration valves except for the thermal expansion valve.
The thermostatic expansion valve setting unit comprises a thermostatic expansion valve fixing base 6, a thermostatic bath 7, a second interface J2, a third stop valve V3, a second pressure gauge P2 and an adjusting needle valve 8 which are sequentially connected through pipelines.
The flow measurement unit comprises more than two interfaces and more than two flowmeters with different measuring ranges, and each interface is connected with one flowmeter through a pipeline. In this embodiment, the flow measurement unit includes a third interface J3, a fourth interface J4, a fifth interface J5, a first flowmeter Q1, a second flowmeter Q2, and a third flowmeter Q3, where the third interface J3 is connected to the first flowmeter Q1 through a pipeline, the fourth interface J4 is connected to the second flowmeter Q2 through a pipeline, and the fifth interface J5 is connected to the third flowmeter Q3 through a pipeline.
Wherein, the connection of kneck adopts trachea quick-operation joint to connect, convenient operation.
Before testing the high-low action pressure difference and the internal leakage flow of various refrigeration valves (except a thermal expansion valve), the valve to be tested is fixed on the valve fixing base 5, the first interface J1 is connected with the air inlet side of the valve to be tested through a hose, the air outlet side of the valve to be tested is connected with one of the third interface J3, the fourth interface J4 and the fifth interface J5 through an air pipe, a flow meter which is consistent with the flow range is specifically selected according to the flow of the valve to be tested, and the interface connected with the flow meter is the interface to be connected. During testing, the exhaust valve 4 is closed, the first stop valve V1 is opened, the pressure reducing valve 2 is adjusted, the reading of the first pressure gauge P1 is observed, the pressure of gas is kept at the parameter required by the standard, then the second stop valve V2 is opened, nitrogen flows through the tested valve and the corresponding flowmeter, and the test is carried out according to the standard requirement. After the test is finished, the first stop valve V1 is closed, the exhaust valve 4 is opened, the gas in the pipeline and the valve part behind the second stop valve V2 is exhausted through the exhaust valve 4, and finally the tested valve part is detached.
Before a radial thermal expansion valve superheat degree adjusting test and an inner leakage test, a tested thermal expansion valve is fixed on a thermal expansion valve fixing base 6, a first interface J1 is connected with an air inlet side of the tested thermal expansion valve through a hose, an air outlet side of the tested thermal expansion valve is connected with a second interface J2, an output end of an adjusting needle valve 8 is connected with one of a third interface J3, a fourth interface J4 and a fifth interface J5 through an air pipe, a flow meter which is consistent in measuring range is specifically selected according to the flow of the tested thermal expansion valve, and the interface connected with the flow meter is an interface to be connected. During testing, the exhaust valve 4 is closed, the thermostatic bath 7 is set to the temperature specified in the standard, then the temperature sensing bulb of the tested thermal expansion valve is placed in the thermostatic bath 7, the first stop valve V1 is opened after the thermostatic bath temperature is controlled to reach the working condition specified in the standard, the pressure reducing valve 2 is adjusted, the reading of the first pressure gauge P1 is observed, the pressure of gas is kept at the parameter required by the standard, then the third stop valve V3 is opened, the adjusting needle valve 8 is adjusted, and the display value of the second pressure gauge P2 reaches the specified pressure. And then, opening and opening the second stop valve V2 to enable the nitrogen to flow through the tested thermal expansion valve, the third stop valve V3, the regulating needle valve 8 and the corresponding flow meter, and testing according to standard requirements. After the test is finished, the first stop valve V1 is closed, the exhaust valve 4 is opened, the gas in the pipeline behind the second stop valve V2 and the tested thermal expansion valve is discharged through the exhaust valve 4, and finally the tested thermal expansion valve is detached.
It should be noted that many variations and modifications of the embodiments of the present invention are possible, which are fully described, and are not limited to the specific examples of the above embodiments. The above embodiments are merely illustrative of the present invention and are not intended to limit the present invention. In conclusion, the scope of the present invention shall include those changes or substitutions and modifications which are obvious to those of ordinary skill in the art, and shall be subject to the appended claims.
Claims (2)
1. A performance testing device for a refrigeration valve is characterized by comprising an air inlet unit, an air exhaust unit, a valve fixing base, a thermal expansion valve setting unit and a flow measurement unit; the air inlet unit comprises a nitrogen cylinder, a first stop valve, a pressure reducing valve, an air storage tank, a first pressure gauge, a second stop valve and a first connector which are sequentially connected through a pipeline; the exhaust unit comprises an exhaust valve, and the exhaust valve is connected to a pipeline between a first pressure gauge and a second stop valve of the air inlet unit through a pipeline; the valve fixing base is used for fixing a refrigeration valve except the thermostatic expansion valve; the thermostatic expansion valve setting unit comprises a thermostatic expansion valve fixing base, a thermostatic bath, a second interface, a third stop valve, a second pressure gauge and an adjusting needle valve which are sequentially connected through pipelines; the flow measurement unit comprises more than two interfaces and more than two flowmeters with different measuring ranges, and each interface is connected with one flowmeter through a pipeline.
2. A performance testing device for a refrigerating valve according to claim 1, wherein the flow measuring unit comprises a third interface, a fourth interface, a fifth interface, a first flowmeter, a second flowmeter and a third flowmeter, the third interface is connected with the first flowmeter through a pipeline, the fourth interface is connected with the second flowmeter through a pipeline, and the fifth interface is connected with the third flowmeter through a pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020108183.XU CN211401653U (en) | 2020-01-17 | 2020-01-17 | Refrigerating valve performance testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020108183.XU CN211401653U (en) | 2020-01-17 | 2020-01-17 | Refrigerating valve performance testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211401653U true CN211401653U (en) | 2020-09-01 |
Family
ID=72233420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020108183.XU Expired - Fee Related CN211401653U (en) | 2020-01-17 | 2020-01-17 | Refrigerating valve performance testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211401653U (en) |
-
2020
- 2020-01-17 CN CN202020108183.XU patent/CN211401653U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2021258550A1 (en) | Automatic pressure control type internal pressure creep blasting test device and method | |
| CN108332958B (en) | Multifunctional electromagnetic pneumatic stop valve test bed | |
| CN209992873U (en) | Semiconductor temperature control device test platform | |
| CN107062538B (en) | A kind of air conditioner intelligent detecting method | |
| CN110553835B (en) | Expansion valve performance test system and refrigeration valve performance test system | |
| CN102635990A (en) | Refrigerating output control device and test device and control method using the refrigerating output control device | |
| CN211401653U (en) | Refrigerating valve performance testing device | |
| CN102538326B (en) | Automatic liquid mixing and filling system for commercial thermal expansion valve and automatic liquid mixing and filling method for same | |
| US11781936B2 (en) | Airtightness evaluation device | |
| CN202946354U (en) | Control device of compressor liquid jet and air conditioning system | |
| CN107024039A (en) | Throttling arrangement and the air conditioner with it | |
| CN110553834B (en) | Accelerated life test system for refrigeration valve | |
| CN210244185U (en) | Four-way reversing valve performance test system | |
| CN212621440U (en) | High-temperature valve closed type detection test device based on gas heating system | |
| CN209624024U (en) | A kind of refrigerating capillary calibrating installation | |
| CN106644440A (en) | Thermostatic expansion valve detection method and device | |
| CN110500269B (en) | Volumetric compressor test system | |
| CN206920116U (en) | A kind of detection means of heating power expansion valve | |
| CN208254746U (en) | Pressure test tool | |
| CN215719428U (en) | Automobile electronic water pump testing device | |
| CN112414700A (en) | Electromagnetic valve performance testing device and testing method | |
| CN216622235U (en) | Performance test platform for transcritical carbon dioxide heat exchanger | |
| CN114720847A (en) | High-voltage accelerated aging test device and test method thereof | |
| CN109116115A (en) | The detection method of engine electromagnetic valve | |
| CN104019842B (en) | Calibration tool and calibration steps |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200901 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |