CN104806505A - Method for testing low-temperature and high-pressure plunger pump - Google Patents
Method for testing low-temperature and high-pressure plunger pump Download PDFInfo
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- CN104806505A CN104806505A CN201510185428.2A CN201510185428A CN104806505A CN 104806505 A CN104806505 A CN 104806505A CN 201510185428 A CN201510185428 A CN 201510185428A CN 104806505 A CN104806505 A CN 104806505A
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Abstract
The invention relates to a method for testing a low-temperature and high-pressure plunger pump, which mainly solves the problem of lower trueness in the prior art. The method for testing the low-temperature and high-pressure plunger pump comprises the following steps of (1) enabling a testing liquid to enter an inlet of a tested pump (11) from a low-temperature storage tank (13), and then return into the low-temperature storage tank (13), to perform inner circulation flowing; (b) during formal testing, pressurizing the testing liquid by the tested pump (11), enabling the testing liquid to firstly enter a buffer tank (8) and then enter a high-pressure gasifier (1), and finally sending the testing liquid into a high-pressure air storage cylinder (7) to be stored; in the testing process, adjusting the pressure of an overflow valve (3), so as to test various parameters at different working pressures; (c) collecting, processing, storing and outputting the testing data through a control system, and forming a testing report of the tested pump (11). By adopting the technical scheme, the method has the advantages that the problem is solved, and the method can be applied to the testing of the low-temperature and high-pressure plunger pump.
Description
Technical field
The present invention relates to a kind of low-temperature high-pressure plunger pump test method.
Background technique
Along with the development of national economy and the raising of living standards of the people, environmental protection more and more comes into one's own, and the rock gas as one of clean energy resource is widely used in automotive fuel.Current rock gas is mainly in the majority with the energy form of compressed natural gas CNG, but some areas are not owing to covering urban pipe network, and the price advantage of CNG then cannot embody.These areas are general adopts liquefaction compressed natural gas LCNG gas station form, by producing CNG to the mode of liquefied petroleum gas (LPG) LNG pressurized gasification.Low-temperature high-pressure plunger pump is then the key equipment of pressurizing system in LCNG, and there is important impact the aspects such as its Security, stability, energy consumption on LCNG gas station.
CN201310281933.8 discloses a kind of plunger pump characteristic test system and test method, it is characterized in that arranging test system is: on the output shaft of drive motor, arrange torque rotary speed testing instrument, for detecting input torque and the angular velocity of plunger pump; Two-way plug-in valve is provided with in the export pipeline of plunger pump, the filler opening of two-way plug-in valve and the outlet end connecting pipeline of plunger pump arrange pressure transducer, for detecting the delivery pressure of plunger pump, flow transducer is set at the oil outlet of two-way plug-in valve, for detecting the output flow of plunger pump; Restriction is provided with in the connecting pipeline between the control mouth and the filler opening of two-way plug-in valve of two-way plug-in valve; Guide proportion relief valve and Normally closed type bi-bit bi-pass solenoid directional control valve has been arranged in parallel between the control mouth and the filler opening of flow transducer of two-way plug-in valve; Guide proportion relief valve is for setting the delivery pressure of test system.
The basic dependence on import of low temperature plunger pump of current domestic gas station, price is high, and after sales service is delayed, and domestic also do not have ripe production domesticization plunger pump product.Tracing it to its cause is domesticly do not have perfect high-pressure plunger pump Testing Platform, therefore cannot evaluate its performance index, thus constrain its technical development.This plunger pump test platform relates to the extreme environment of high pressure, low temperature, and on the impact of test effect greatly, construction cost is also higher in addition for corollary equipment and technique.
The present invention solves this problem targetedly.
Summary of the invention
Technical problem to be solved by this invention is the problem that in prior art, validity is lower, provides a kind of new low-temperature high-pressure plunger pump test method.The method is used for, in low-temperature high-pressure plunger pump test, having the advantage that validity is higher.
For solving the problem, the technical solution used in the present invention is as follows: a kind of low-temperature high-pressure plunger pump test method, comprise the steps: that (a) first carries out precooling treatment, test fluid enters tested pump (11) entrance from low-temperature storage tank (13), then return in low-temperature storage tank (13) through bypass outlet, carry out internal circulation flow, until reach the temperature met the demands; During (b) official testing, first test fluid enters knock out drum (8) after tested pump (11) pressurization, carry out voltage stabilizing and gas-liquid separation, then enter in high-pressure carburetor (1) and be vaporized, finally enter in high-pressure gas cylinder group (7) and be stored, high-pressure carburetor (1) outlet is provided with flowmeter (2) and relief valve (3), by the pressure of regulation relief valve (3) in test process, realize all kinds of parameters under test different operating pressure; C () test data is undertaken gathering by control system, process, stores, is exported, form the test report of tested pump (11).
In technique scheme, preferably, described tested pump (11) suction line is provided with pressure gauge, cryogenic globe valve and test tank (12).
In technique scheme, preferably, the pipeline that the outlet of described tested pump (11) is connected with low-temperature storage tank (13) is provided with bellows and safety valve.
In technique scheme, preferably, the pipeline between described tested pump (11) outlet and knock out drum (8) is provided with bellows.
In technique scheme, preferably, described branch road is connected with high-pressure carburetor (1) entrance and is provided with one-way valve (9), vibration damper (10) and safety valve.
In technique scheme, preferably, described high-pressure carburetor (1) exports the pipeline be connected with high-pressure gas cylinder group (7) and is provided with cryogenic globe valve, safety valve and pressure gauge.
This patent proposes a kind of test method mainly for the test of low temperature plunger pump performance and assessment, it is supporting that this platform has carried out relevant device according to the actual operating mode of plunger pump, therefore can evaluate and test out the performance in immersed pump actual moving process to greatest extent.This test testing apparatus is equipped with integrating control cabinet and corresponding testing software, the operation such as can carry out that the transmission of data, process, storage and report are shown efficiently.Crucial pipeline possesses open interface in addition, is convenient to the expansion of later stage test function.This testing apparatus possesses the corollary equipment meeting field working conditions, more effectively can reflect the actual performance feature of high-pressure plunger pump, and equipment adopts open by design in addition, structure is simple, safe and reliable, automaticity is higher, achieves good technique effect.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of the method for the invention.
In Fig. 1,1. high-pressure carburetor; 2. flowmeter; 3. relief valve; 4. cryogenic globe valve; 5. safety valve; 6. pressure gauge; 7. high-pressure gas cylinder group; 8. knock out drum; 9. one-way valve; 10. vibration damper; 11. tested pumps; 12. test tank; 13. low-temperature storage tanks; 14. bellowss.
Below by embodiment, the invention will be further elaborated, but be not limited only to the present embodiment.
Embodiment
[embodiment 1]
A kind of low-temperature high-pressure plunger pump test method, as shown in Figure 1, tested pump (11) suction line is connected with low-temperature storage tank (13), tested pump (11) outlet line one tunnel is connected with low-temperature storage tank (13), another road is connected with knock out drum (8), pipeline between tested pump (11) and knock out drum (8) is provided with branch road, branch road is connected with high-pressure carburetor (1) entrance, and high-pressure carburetor (1) outlet line is connected with high-pressure gas cylinder group (7).
Tested pump (11) suction line is provided with pressure gauge, cryogenic globe valve and test tank (12).Tested pump (11) exports the pipeline be connected with low-temperature storage tank (13) and is provided with bellows and safety valve.Pipeline between tested pump (11) outlet and knock out drum (8) is provided with bellows.Branch road is connected with high-pressure carburetor (1) entrance and is provided with one-way valve (9), vibration damper (10) and safety valve.The empty warm vaporizer (1) of high pressure exports the pipeline be connected with high-pressure gas cylinder group (7) and is provided with relief valve (3), cryogenic globe valve, safety valve and pressure gauge.
Store pump test medium in low-temperature storage tank, be mainly used in the pre-cold-peace proper testing of tested pump self-loopa; The effect of high-pressure carburetor is that high pressure low temperature test fluid is vaporized into high pressure compressed gas; High-pressure gas cylinder group is mainly used in the pressurized gas after storing vaporization, and the outlet of this bottle of group is equipped with interface, can connect other equipment, be convenient to making full use of of pressurized gas, thus the object reaching energy efficient, reduce costs; The effect of control system is the dynamic Control to test platform, and carries out data acquisition and processing (DAP).Gather the flow of pump under each pressure, electric current by program control, thus draw pressure-flow characteristic, pressure-volume efficiency characteristic, the pressure-total efficiency characteristic of pump, the overload performance of inspection pump, impact property, external leakage situation, the contents such as electric machine temperature rise.Export required form by program control, judge the superiority of tested pump performance; Pipe-line system comprises buffer, one-way valve, safety valve, stop valve, highi degree of accuracy mass flowmenter, relief valve etc.By ensureing the Security of test platform to working pressure, the isoparametric control of flow.
Embodiment:
Before tested pump testing (11) is tested, first need to carry out precooling treatment, test fluid from low-temperature storage tank (13) self-pressure by entering tested pump (11) entrance, then again return in low-temperature storage tank (13) through bypass outlet, carry out internal circulation flow, until reach the temperature value met the demands.The pressure gauge (6) wherein entrance pipe is equipped with is for monitoring loine pressure, and system can adjust control action according to force value, and filter (12) carries out filtration treatment to the test fluid entered in tested pump (11).During official testing, first test fluid enters knock out drum (8) after tested pump (11) pressurization, carry out voltage stabilizing and gas-liquid separation, then enter in high-pressure carburetor (1) and be vaporized, finally enter in high-pressure gas cylinder group (7) and be stored.High-pressure carburetor (1) outlet is equipped with flowmeter (2) and relief valve (3), can the pressure of regulation relief valve (3) as required in test process, thus test all kinds of parameter values such as the flow under different operating pressure, all data, finally by control system collection, process, storage, output, form the test report of tested pump (11).
Claims (6)
1. a low-temperature high-pressure plunger pump test method, comprise the steps: that (a) first carries out precooling treatment, test fluid enters tested pump (11) entrance from low-temperature storage tank (13), then return in low-temperature storage tank (13) through bypass outlet, carry out internal circulation flow, until reach the temperature met the demands; During (b) official testing, first test fluid enters knock out drum (8) after tested pump (11) pressurization, carry out voltage stabilizing and gas-liquid separation, then enter in high-pressure carburetor (1) and be vaporized, finally enter in high-pressure gas cylinder group (7) and be stored, high-pressure carburetor (1) outlet is provided with flowmeter (2) and relief valve (3), by the pressure of regulation relief valve (3) in test process, realize all kinds of parameters under test different operating pressure; C () test data is undertaken gathering by control system, process, stores, is exported, form the test report of tested pump (11); Tested pump (11) suction line is connected with low-temperature storage tank (13), tested pump (11) outlet line one tunnel is connected with low-temperature storage tank (13), another road is connected with knock out drum (8), pipeline between tested pump (11) and knock out drum (8) is provided with branch road, branch road is connected with high-pressure carburetor (1) entrance, and high-pressure carburetor (1) outlet line is connected with high-pressure gas cylinder group (7).
2. low-temperature high-pressure plunger pump test method according to claim 1, is characterized in that described tested pump (11) suction line is provided with pressure gauge, cryogenic globe valve and test tank (12).
3. low-temperature high-pressure plunger pump test method according to claim 1, is characterized in that the pipeline that the outlet of described tested pump (11) is connected with low-temperature storage tank (13) is provided with bellows and safety valve.
4. low-temperature high-pressure plunger pump test method according to claim 1, is characterized in that the outlet of described tested pump (11) is provided with bellows with the pipeline between knock out drum (8).
5. low-temperature high-pressure plunger pump test method according to claim 1, is characterized in that described branch road is connected with high-pressure carburetor (1) entrance and is provided with one-way valve (9), vibration damper (10) and safety valve.
6. low-temperature high-pressure plunger pump test method according to claim 1, is characterized in that described high-pressure carburetor (1) exports the pipeline be connected with high-pressure gas cylinder group (7) and is provided with cryogenic globe valve, safety valve and pressure gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510185428.2A CN104806505A (en) | 2015-04-20 | 2015-04-20 | Method for testing low-temperature and high-pressure plunger pump |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510185428.2A CN104806505A (en) | 2015-04-20 | 2015-04-20 | Method for testing low-temperature and high-pressure plunger pump |
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| CN104806505A true CN104806505A (en) | 2015-07-29 |
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| CN201510185428.2A Pending CN104806505A (en) | 2015-04-20 | 2015-04-20 | Method for testing low-temperature and high-pressure plunger pump |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115247643A (en) * | 2021-04-25 | 2022-10-28 | 中国科学院理化技术研究所 | Liquid hydrogen booster pump performance test platform and test method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1183712A (en) * | 1998-07-15 | 1999-03-26 | Kakiuchi:Kk | Method and device for testing non-water bath type pressure-proof expansion for high-pressure gas vessel |
| CN1763417A (en) * | 2005-10-19 | 2006-04-26 | 马磊 | Liquefied natural gas charging device with automatic pressure regulation and gasification functions |
| CN202149833U (en) * | 2011-06-10 | 2012-02-22 | 浙江省工业设备安装集团有限公司 | Air pressure tester |
| CN102501793A (en) * | 2011-10-26 | 2012-06-20 | 新兴能源装备股份有限公司 | Moving detection vehicle |
| CN102589823A (en) * | 2012-02-16 | 2012-07-18 | 新兴能源装备股份有限公司 | Airtightness test and nitrogen replacement device used for high-pressure air cylinder |
-
2015
- 2015-04-20 CN CN201510185428.2A patent/CN104806505A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1183712A (en) * | 1998-07-15 | 1999-03-26 | Kakiuchi:Kk | Method and device for testing non-water bath type pressure-proof expansion for high-pressure gas vessel |
| CN1763417A (en) * | 2005-10-19 | 2006-04-26 | 马磊 | Liquefied natural gas charging device with automatic pressure regulation and gasification functions |
| CN202149833U (en) * | 2011-06-10 | 2012-02-22 | 浙江省工业设备安装集团有限公司 | Air pressure tester |
| CN102501793A (en) * | 2011-10-26 | 2012-06-20 | 新兴能源装备股份有限公司 | Moving detection vehicle |
| CN102589823A (en) * | 2012-02-16 | 2012-07-18 | 新兴能源装备股份有限公司 | Airtightness test and nitrogen replacement device used for high-pressure air cylinder |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115247643A (en) * | 2021-04-25 | 2022-10-28 | 中国科学院理化技术研究所 | Liquid hydrogen booster pump performance test platform and test method |
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Application publication date: 20150729 |