CN104454788A - Test platform used for energy conversion unit - Google Patents
Test platform used for energy conversion unit Download PDFInfo
- Publication number
- CN104454788A CN104454788A CN201410590104.2A CN201410590104A CN104454788A CN 104454788 A CN104454788 A CN 104454788A CN 201410590104 A CN201410590104 A CN 201410590104A CN 104454788 A CN104454788 A CN 104454788A
- Authority
- CN
- China
- Prior art keywords
- oil
- pressure
- valve
- outlet
- pipeline
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses a test platform used for an energy conversion unit. The test platform comprises a hydraulic oil tank, an external pump station, a proportional flow control valve, a back pressure valve A, a back pressure valve B, an alternating-current motor, a boosting oil pump, an overflow valve A, an overflow valve B, an overflow valve C and a two-position four-way reversing valve. An oil suction opening in the motor side of the energy conversion unit is connected with an oil outlet of the boosting oil pump in series, and the overflow valve A and the overflow valve B are connected in parallel and used for regulating the pressure of the system. An oil inlet in the pump side of the energy conversion unit is connected with the external pump station in series. An oil outlet in the motor side of the energy conversion unit is connected with the proportional flow control valve in series, and the proportional flow control valve is used for simulating the load of the motor. The test platform realizes simultaneous testing of the performance of the double sides of the energy conversion unit.
Description
Technical field
The present invention relates to a kind of test platform of oil hydraulic pump, particularly a kind of test platform for energy conversion unit.
Background technique
The pumping function test platform that Present Domestic is commonly used outward is generally filtered by hydraulic oil container, one-way valve, proportional velocity regulating valve, variable-frequency motor, pressure gauge, pressure transducer, temperature transducer, flowmeter, the filter of oil suction oil, the filter of oil return oil and high pressure oil and is formed, variable-frequency motor drives and is rotated by pump testing, by pump testing oil suction from hydraulic oil container, be converted into high pressure oil, high pressure oil gets back to hydraulic oil container after entering proportional velocity regulating valve.Proportional velocity regulating valve can change openings of sizes to simulate different loads according to demand.The maximum deficiency of existing pump function test platform is the performance can only testing energy conversion unit pump side, cannot test the performance of energy conversion unit pump side and motor-side simultaneously.
Summary of the invention
The object of the invention is to provide a kind of test platform for energy conversion unit, solves the performance that existing pump function test platform can only test energy conversion unit pump side, the problem simultaneously cannot tested the performance of energy conversion unit pump side and motor-side.
A kind of test platform for energy conversion unit, comprise: hydraulic oil container, proportional velocity regulating valve, one-way valve A, one-way valve B, one-way valve C, one-way valve D, one-way valve E, one-way valve F, one-way valve G, pressure gauge A, pressure gauge B, pressure gauge C, pressure gauge D, pressure transducer A, pressure transducer B, pressure transducer C, pressure transducer D, pressure transducer E, temperature transducer, flowmeter A, flowmeter B, flowmeter C, oil suction oil filter A, oil suction oil filter B, high pressure oil filter A, high pressure oil filter B and the filter of oil return oil, also comprise: external pumping plant, back pressure valve A, back pressure valve B, AC motor, pressure oil pump, relief valve A, relief valve B, relief valve C, manual ball valve A, manual ball valve B, manual ball valve C, manual ball valve D, manual ball valve E, manual ball valve F and two position and four-way reversing valves.The filler opening that hydraulic oil container filters A with oil suction oil is threaded by pipeline, and the oil suction oil filter oil outlet of A is connected by hard tube with the inlet port of pressure oil pump.AC motor output shaft is connected by coupling with pressure oil pump input shaft.The high-pressure mouth of pressure oil pump is threaded by pipeline with the filler opening of one-way valve A, one-way valve B respectively, the oil outlet of one-way valve A is connected by pipeline with hydraulic oil container, the entry sequence that oil outlet and two high pressure oils of one-way valve B are filtered is connected by pipeline, the filler opening of relief valve A is connected by pipe joint screw thread with the high-pressure mouth of pressure oil pump, and the oil outlet that the filler opening of pressure gauge A, pressure transducer A, relief valve B filters A with high pressure oil successively by pipeline is threaded.The oil outlet of high pressure oil filter B is connected by pipeline with the filler opening of manual ball valve A, and the oil outlet of manual ball valve A is connected by pipeline with the pump side inlet port of tested energy conversion unit.The pump side oil outlet of tested energy conversion unit is connected by pipeline with the filler opening of manual ball valve E, the oil outlet of manual ball valve E, the oil inlet and outlet of one-way valve F, temperature transducer, pressure transducer C, pressure gauge C, the oil inlet and outlet of proportional velocity regulating valve and the filler opening of flowmeter A are sequentially connected in series by pipe joint and pipeline, the filler opening that oil outlet and the oil return oil of flowmeter A are filtered is connected by pipeline, and the oil outlet of oil return oil filter is connected by pipeline with hydraulic oil container; The oil outlet of the oil outlet of one-way valve C, the oil inlet and outlet of one-way valve F, relief valve C is sequentially connected in series by pipe joint, and the filler opening that oil outlet and the oil return oil of relief valve C are filtered is connected by pipeline.Oil suction oil filter B is placed in hydraulic oil container inside and connects with screw, the oil outlet of oil suction oil filter B is connected by pipeline with the inlet port of external pumping plant, and the oil inlet and outlet of the high pressure hydraulic fluid port of external pumping plant, pressure transducer E, pressure gauge D, manual ball valve B is connected with pipeline by pipe joint successively with the filler opening of the motor-side of tested energy conversion unit.The oil outlet of the motor-side of tested energy conversion unit is connected by pipeline with the filler opening of manual ball valve F, and oil inlet and outlet and the flowmeter B filler opening of the oil outlet of manual ball valve F, the oil inlet and outlet of one-way valve G, pressure transducer D, back pressure valve A are sequentially connected in series by pipe joint and pipeline.The bilateral drain tap of tested energy conversion unit is connected by pipeline with the oil inlet and outlet of manual ball valve C, the filler opening of manual ball valve D respectively, the oil outlet of manual ball valve C is connected by pipeline with the A hydraulic fluid port of two position and four-way reversing valves, the oil outlet of manual ball valve D is connected with the B hydraulic fluid port of two position and four-way reversing valves, and oil inlet and outlet and the flowmeter C filler opening of the P mouth of two position and four-way reversing valves, pressure gauge B, pressure transducer B, one-way valve E are sequentially connected in series by pipe joint and pipeline; The T mouth of two position and four-way reversing valves is connected by pipeline with the filler opening of one-way valve D; The oil outlet of flowmeter C, the oil outlet of one-way valve D are connected in parallel by pipe joint, and be connected in series by pipeline with the filler opening of back pressure valve B afterwards, the oil outlet of back pressure valve B is connected by pipeline with hydraulic oil container.
This hydraulic pressure system is two loop compositions altogether, loop one is motor-side test loop, loop two is pump side test loop, loop one and loop two working connection separate, pressure transducer B, the pressure gauge B of tested energy conversion unit bilateral drain tap, flowmeter C are that two loops are public, are switched by two-position three-way valve.Loop one, motor-side provides high pressure oil by external pumping plant, and the motor promoting motor-side rotates, and by transmission shaft, drives pump side to rotate, produces high pressure oil, complete transformation of energy.Motor-side outlet fluid gets back to hydraulic oil container by back pressure valve, and in loop, each pressure gauge, pressure transducer, flowmeter are for testing properties data.Loop two, by pressure oil pump, the filter of oil suction oil, supercharging and filtration are carried out to pump side inlet port fluid, two relief valves are used for pressure regulation and guarantee that system pressure is in below safety pressure, its set pressure is regulated, one-way valve A in parallel be with it used for facilitating when preventing suction booster output flow not enough energy conversion unit pump side directly from hydraulic oil container oil suction to prevent suction.Hydraulic oil container is got back in the load that pump side outlet high pressure oil forms through proportional velocity regulating valve and relief valve C, and in loop, each pressure, temperature transducer, flowmeter are for testing properties data.
This test platform is achieved by two separate loops and completes energy conversion unit two-sided test simultaneously, can the properties of disposable test energy conversion unit.Meanwhile, pressure oil pump is used to coordinate relief valve to carry out supercharging to pump side inlet port fluid, to prevent the suction of pump side.Manual ball valve is all installed by each pipeline place of tested energy conversion unit, facilitates its dismounting; In system each relief valve and proportional velocity regulating valve load all adjustable, to facilitate the test to different performance Parameter Energy converting unit, there is very strong flexibility and versatility.
Accompanying drawing explanation
The schematic diagram of a kind of test platform for energy conversion unit of Fig. 1.
1. AC motor 2. pressure oil pump 3. oil suction oil filter A 4. oil suction oil filter B 5. relief valve A 6. relief valve B 7. relief valve C 8. one-way valve A 9. one-way valve B 10. one-way valve C 11. one-way valve D 12. one-way valve E 13. one-way valve F 14. one-way valve G 15. high pressure oil filter A
16. high pressure oil filter B
17. proportional velocity regulating valve 18. back pressure valve A 19. back pressure valve B 20. flowmeter A 21. flowmeter B 22. flowmeter C 23. manual ball valve A 24. manual ball valve B 25. manual ball valve C 26. manual ball valve D 27. manual ball valve E 28. manual ball valve F 29. oil return oil filter 30. hydraulic oil containers, the 31. liang of tested energy conversion unit of position and four-way reversing valve 32. 33. external pumping plant 34. pressure transducer A 35. pressure transducer B 36. pressure transducer C 37. pressure transducer D 38. pressure transducer E 39. pressure gauge A 40. pressure gauge B 41. pressure gauge C 42. pressure gauge D 43. temperature transducers.
Embodiment
A kind of test platform for energy conversion unit, comprise: hydraulic oil container 30, proportional velocity regulating valve 17, one-way valve A8, one-way valve B9, one-way valve C10, one-way valve D11, one-way valve E12, one-way valve F13, one-way valve G14, pressure gauge A39, pressure gauge B40, pressure gauge C41, pressure gauge D42, pressure transducer A34, pressure transducer B35, pressure transducer C36, pressure transducer D37, pressure transducer E38, temperature transducer 43, flowmeter A20, flowmeter B21, flowmeter C22, oil suction oil filter A3, oil suction oil filter B4, oil return oil filter 29, high pressure oil filter A15, high pressure oil filter B16, also comprise tested energy conversion unit 32, external pumping plant 33, back pressure valve A18, back pressure valve B19, AC motor 1, pressure oil pump 2, relief valve A5, relief valve B6, relief valve C7, two position and four-way reversing valves 31, manual ball valve A23, manual ball valve B24, manual ball valve C25, manual ball valve D26, manual ball valve E27, manual ball valve F28.The filler opening that hydraulic oil container 30 filters A3 with oil suction oil is threaded by pipeline, and the oil outlet of oil suction oil filter A3 is connected by hard tube with the inlet port of pressure oil pump 2.AC motor 1 output shaft is connected by coupling with pressure oil pump 2 input shaft.The high-pressure mouth of pressure oil pump 2 is threaded by pipeline with the filler opening of one-way valve A8, one-way valve B9 respectively, the oil outlet of one-way valve A8 is connected by pipeline with hydraulic oil container 30, the entry sequence that oil outlet and two high pressure oils of one-way valve B9 filter 15,16 is connected by pipeline, the filler opening of relief valve A5 is connected by pipe joint screw thread with the high-pressure mouth of pressure oil pump 2, and the oil outlet that the filler opening of pressure gauge A39, pressure transducer A34, relief valve B6 filters A15 with high pressure oil successively by pipeline is threaded.The oil outlet of high pressure oil filter B16 is connected by pipeline with the filler opening of manual ball valve A23, and the oil outlet of manual ball valve A23 is threaded by pipeline with the pump side inlet port of tested energy conversion unit 32.The pump side oil outlet of tested energy conversion unit 32 is connected by pipeline with the filler opening of manual ball valve E27, oil inlet and outlet and the flowmeter A20 filler opening of the oil outlet of manual ball valve E27, the oil inlet and outlet of one-way valve F13, temperature transducer 43, pressure transducer C36, pressure gauge C41, proportional velocity regulating valve 17 are sequentially connected in series by pipe joint and pipeline, the filler opening that the oil outlet of flowmeter A20 filters 29 by pipeline and oil return oil is threaded, and the oil outlet of oil return oil filter 29 is connected by pipeline with hydraulic oil container 30; The oil outlet of the oil outlet of one-way valve C10, the oil inlet and outlet of one-way valve F13, relief valve C7 is sequentially connected in series by pipe joint, and the filler opening that the oil outlet of relief valve C7 filters 29 by pipeline and oil return oil is threaded.Oil suction oil filter B4 is placed in hydraulic oil container 30 inside and connects with screw, the B4 oil outlet of oil suction oil filter is connected by pipeline with the inlet port of external pumping plant 33, and the oil inlet and outlet of the high pressure hydraulic fluid port of external pumping plant 33, pressure transducer E38, pressure gauge D42, manual ball valve B24 is connected with pipeline by pipe joint successively with the motor-side filler opening of tested energy conversion unit 32.The motor-side oil outlet of tested energy conversion unit 32 is connected by pipeline with the filler opening of manual ball valve F28, and oil inlet and outlet and the flowmeter B21 filler opening of the oil outlet of manual ball valve F28, the oil inlet and outlet of one-way valve G14, pressure transducer D37, back pressure valve A18 are sequentially connected in series by pipe joint and pipeline.The bilateral drain tap of tested energy conversion unit 32 is connected by pipeline with the oil inlet and outlet of manual ball valve C25, the filler opening of manual ball valve D26 respectively, the oil outlet of manual ball valve C25 is connected by pipeline with the A hydraulic fluid port of two position and four-way reversing valves 31, manual ball valve D26 oil outlet is connected with the B hydraulic fluid port of two position and four-way reversing valves 31, and the P mouth of two position and four-way reversing valves 31, pressure gauge B40, pressure transducer B35, the oil inlet and outlet of one-way valve E12 and the filler opening of flowmeter C22 are sequentially connected in series by pipe joint and pipeline; The T mouth of two position and four-way reversing valves 31 is connected by pipeline with the filler opening of one-way valve D11; The oil outlet of flowmeter C22, the oil outlet of one-way valve D11 are connected in parallel by pipe joint, are connected in series afterwards with the filler opening of back pressure valve B19 by pipe joint, and the oil outlet of back pressure valve B19 is connected by pipeline with hydraulic oil container 30.
When doing efficiency test, open manual ball valve A23, manual ball valve B24, manual ball valve C25, manual ball valve D26, manual ball valve E27, manual ball valve F28, by performance parameter value setting pump side filler opening relief valve B6, housing return opening back pressure valve B19, the motor return oil pressure valve A18 of tested energy conversion unit 32.Start AC motor 1 and external pumping source 33 successively, regulate proportional velocity regulating valve 17 parameter, draw efficiency, flow, the pressure-dependent characteristic curve of power.All the other tests, according to energy conversion unit design parameter, can be tested by similar procedure.
Claims (1)
1. for a test platform for energy conversion unit, comprising: hydraulic oil container (30), proportional velocity regulating valve (17), one-way valve A(8), one-way valve B(9), one-way valve C(10), one-way valve D(11), one-way valve E(12), one-way valve F(13), one-way valve G(14), pressure gauge A(39), pressure gauge B(40), pressure gauge C(41), pressure gauge D(42), pressure transducer A(34), pressure transducer B(35), pressure transducer C(36), pressure transducer D(37), pressure transducer E(38), temperature transducer (43), flowmeter A(20), flowmeter B(21), flowmeter C(22), oil suction oil filter A(3), oil suction oil filter B(4), high pressure oil filter A(15), high pressure oil filter B(16) and oil return oil filter (29), characterized by further comprising: external pumping plant (33), back pressure valve A(18), back pressure valve B(19), AC motor (1), pressure oil pump (2), relief valve A(5), relief valve B(6), relief valve C(7), manual ball valve A(23), manual ball valve B(24), manual ball valve C(25), manual ball valve D(26), manual ball valve E(27), manual ball valve F(28) and two position and four-way reversing valves (31), A(3 filter by hydraulic oil container (30) and oil suction oil) filler opening be threaded by pipeline, A(3 filtered by oil suction oil) oil outlet be connected by hard tube with the inlet port of pressure oil pump (2), AC motor (1) output shaft is connected by coupling with pressure oil pump (2) input shaft, the high-pressure mouth of pressure oil pump (2) respectively with one-way valve A(8), one-way valve B(9) filler opening be threaded by pipeline, one-way valve A(8) oil outlet be connected by pipeline with hydraulic oil container (30), one-way valve B(9) oil outlet be connected by pipeline with the entry sequence that two high pressure oils are filtered, relief valve A(5) filler opening be connected by pipe joint screw thread with the high-pressure mouth of pressure oil pump (2), pressure gauge A(39), pressure transducer A(34), relief valve B(6) filler opening filter A(15 with high pressure oil successively by pipeline) oil outlet be threaded, high pressure oil filter B(16) oil outlet and manual ball valve A(23) filler opening be connected by pipeline, manual ball valve A(23) oil outlet be connected by pipeline with the pump side inlet port of tested energy conversion unit (32), pump side oil outlet and the manual ball valve E(27 of tested energy conversion unit (32)) filler opening be connected by pipeline, manual ball valve E(27) oil outlet, one-way valve F(13) oil inlet and outlet, temperature transducer (43), pressure transducer C(36), pressure gauge C(41), the oil inlet and outlet of proportional velocity regulating valve (17) and flowmeter A(20) filler opening be sequentially connected in series by pipe joint and pipeline, flowmeter A(20) oil outlet and the oil return oil filler opening of filtering (29) be connected by pipeline, the oil outlet of oil return oil filter (29) is connected by pipeline with hydraulic oil container (30), one-way valve C(10) oil outlet, one-way valve F(13) oil inlet and outlet, relief valve C(7) oil outlet be sequentially connected in series by pipe joint, relief valve C(7) oil outlet and the oil return oil filler opening of filtering (29) be connected by pipeline, oil suction oil filter B(4) be placed in hydraulic oil container (30) inside and be connected by screw, oil suction oil filter B(4) oil outlet be connected by pipeline with the inlet port of external pumping plant (33), the high pressure hydraulic fluid port of external pumping plant (33), pressure transducer E(38), pressure gauge D(42), manual ball valve B(24) oil inlet and outlet be connected successively with pipeline by pipe joint with the filler opening of the motor-side of tested energy conversion unit, oil outlet and the manual ball valve F(28 of the motor-side of tested energy conversion unit) filler opening be connected by pipeline, manual ball valve F(28) oil outlet, one-way valve G(14) oil inlet and outlet, pressure transducer D(37), back pressure valve A(18) oil inlet and outlet and flowmeter B(21) filler opening be sequentially connected in series by pipe joint and pipeline, the bilateral drain tap of tested energy conversion unit (32) respectively with manual ball valve C(25) oil inlet and outlet, manual ball valve D(26) filler opening connected by pipeline, manual ball valve C(25) oil outlet be connected by pipeline with the A hydraulic fluid port of two position and four-way reversing valves (31), manual ball valve D(26) oil outlet be connected with the B hydraulic fluid port of two position and four-way reversing valves (31), the P mouth of two position and four-way reversing valves (31), pressure gauge B(40), pressure transducer B(35), one-way valve E(12) oil inlet and outlet and flowmeter C(22) filler opening is sequentially connected in series by pipe joint and pipeline, T mouth and the one-way valve D(11 of two position and four-way reversing valves (31)) filler opening be connected by pipeline, flowmeter C(22) oil outlet, one-way valve D(11) oil outlet be connected in parallel by pipe joint, afterwards with back pressure valve B(19) filler opening be connected in series by pipeline, back pressure valve B(19) oil outlet be connected by pipeline with hydraulic oil container (30),
This hydraulic pressure system is two loop compositions altogether, loop one is motor-side test loop, loop two is pump side test loop, loop one and loop two working connection separate, the pressure transducer B(35 of tested energy conversion unit (32) bilateral drain tap), pressure gauge B(40), flowmeter C(22) be that two loops are public, switched by two-position three-way valve; Loop one, motor-side provides high pressure oil by external pumping plant (33), and the motor promoting motor-side rotates, and by transmission shaft, drives pump side to rotate, produces high pressure oil, complete transformation of energy; Motor-side outlet fluid gets back to hydraulic oil container (30) by back pressure valve, and in loop, each pressure gauge, pressure transducer, flowmeter are for testing properties data; Loop two, by pressure oil pump (2), the filter of oil suction oil, supercharging and filtration are carried out to pump side inlet port fluid, two relief valves are used for pressure regulation and guarantee that system pressure is in below safety pressure, its set pressure is regulated, one-way valve A(8 in parallel with it) for preventing suction booster output flow not enough time facilitate energy conversion unit pump side directly from hydraulic oil container (30) oil suction to prevent suction; Pump side outlet high pressure oil is through proportional velocity regulating valve (17) and relief valve C(7) load that forms gets back to hydraulic oil container (30), and in loop, each pressure, temperature transducer (43), flowmeter are for testing properties data.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201410590104.2A CN104454788B (en) | 2014-10-29 | 2014-10-29 | A kind of test platform for energy conversion unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201410590104.2A CN104454788B (en) | 2014-10-29 | 2014-10-29 | A kind of test platform for energy conversion unit |
Publications (2)
Publication Number | Publication Date |
---|---|
CN104454788A true CN104454788A (en) | 2015-03-25 |
CN104454788B CN104454788B (en) | 2016-10-12 |
Family
ID=52901363
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201410590104.2A Active CN104454788B (en) | 2014-10-29 | 2014-10-29 | A kind of test platform for energy conversion unit |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN104454788B (en) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1500133A (en) * | 1975-12-30 | 1978-02-08 | Secr Defence | Hydraulic test equipment |
JPH02278137A (en) * | 1989-04-19 | 1990-11-14 | Kobe Steel Ltd | Method and apparatus for testing characteristic of hydraulic valve |
CN200964977Y (en) * | 2006-11-10 | 2007-10-24 | 山西太钢不锈钢股份有限公司 | Hydraulic spare parts pressurization station |
CN103867533A (en) * | 2014-03-26 | 2014-06-18 | 上海电气液压气动有限公司 | Hydraulic test system of railway tamping device |
CN203717534U (en) * | 2013-12-30 | 2014-07-16 | 北京经纬恒润科技有限公司 | Test experiment table for ESP hydraulic system |
CN104019083A (en) * | 2014-06-23 | 2014-09-03 | 镇江杭川机械制造有限公司 | Hydraulic testing system |
-
2014
- 2014-10-29 CN CN201410590104.2A patent/CN104454788B/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1500133A (en) * | 1975-12-30 | 1978-02-08 | Secr Defence | Hydraulic test equipment |
JPH02278137A (en) * | 1989-04-19 | 1990-11-14 | Kobe Steel Ltd | Method and apparatus for testing characteristic of hydraulic valve |
CN200964977Y (en) * | 2006-11-10 | 2007-10-24 | 山西太钢不锈钢股份有限公司 | Hydraulic spare parts pressurization station |
CN203717534U (en) * | 2013-12-30 | 2014-07-16 | 北京经纬恒润科技有限公司 | Test experiment table for ESP hydraulic system |
CN103867533A (en) * | 2014-03-26 | 2014-06-18 | 上海电气液压气动有限公司 | Hydraulic test system of railway tamping device |
CN104019083A (en) * | 2014-06-23 | 2014-09-03 | 镇江杭川机械制造有限公司 | Hydraulic testing system |
Also Published As
Publication number | Publication date |
---|---|
CN104454788B (en) | 2016-10-12 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN204226308U (en) | A kind of ultrahigh-pressure hydraulic pressurization system | |
CN102607960A (en) | Measurement and control system for hydraulic test | |
CN206960072U (en) | A kind of device for valve pressure testing | |
CN104100581B (en) | Pressurized cylinder and pressure testing supercharging device | |
CN208653742U (en) | It is a kind of sealing and the testing integrated machine of pulse | |
CN202793688U (en) | Pressure gage calibrating device with air as medium | |
CN202554795U (en) | Test-control system for hydraulic test | |
RU191468U1 (en) | Water treatment device for washing and disinfecting plants | |
CN105890845A (en) | Pipeline high strength and tightness test fixture and method | |
CN104359695B (en) | Nuclear-grade check valve dynamic reverse flow test device | |
CN104454788A (en) | Test platform used for energy conversion unit | |
CN104575639B (en) | A kind of full-automatic water compression testing device of nuclear power container | |
CN203809416U (en) | Hydraulic power source supply system | |
CN106555784A (en) | A kind of hydraulic air oil pump device | |
CN202229797U (en) | Novel control device for measuring tank | |
CN204025017U (en) | A kind of high-pressure water pump Testing Platform | |
CN201615835U (en) | Water supply equipment performance test bed | |
CN205370542U (en) | Double, two closed -loop type fracturing blender truck of double suction | |
CN201835552U (en) | Automatic water compensation device of circulating pond | |
CN203551382U (en) | Hydraulic test and airtight test device of full-digital pressure-bearing type equipment | |
CN203809415U (en) | Integral hydraulic test bed | |
CN104679039A (en) | Water level automatic control system of water storage tank | |
CN112082794A (en) | Double-power-source gas cylinder fatigue experiment device | |
CN203981368U (en) | Water pipe tightness measuring device | |
CN206943061U (en) | The regulation and control system of compound compressor |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant |