CN211013376U - Testing device for universal use of multiple valves - Google Patents
Testing device for universal use of multiple valves Download PDFInfo
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- CN211013376U CN211013376U CN201921804093.8U CN201921804093U CN211013376U CN 211013376 U CN211013376 U CN 211013376U CN 201921804093 U CN201921804093 U CN 201921804093U CN 211013376 U CN211013376 U CN 211013376U
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Abstract
The utility model discloses a test device that many valves were general, test device includes the test bench, the switch board, the plummer, the nitrogen gas jar, the air input interface, the nitrogen gas input interface, control oil supply hose, sealed oil supply hose, the gas reveals the detection bottle, the gas reveals the test tube and sets up the oil gas control system in the switch board, set up the three fixing base that supplies to treat the check valve on the plummer, oil gas control system includes control oil circuit, sealed oil circuit, and nitrogen gas flow path, can the splendid matching sweep the valve, the simulation test is realized to the leakproofness of window valve and jet-propelled valve, test bench or work platform lead to joining in marriage well, moreover, the steam generator is simple in structure, and is low in cost, and convenient for popularize and apply.
Description
Technical Field
The utility model relates to a marine engine valve detects the technique, especially relates to a test device that many valves are general.
Background
For the ME-GI dual fuel two-stroke low speed diesel engine of MAN-ES, the jet valve, the window valve and the purge valve are the main components of the gas supply and injection system. When the ME-GI diesel engine stops, the window valve closes the gas supply of the gas control block through the hydraulic oil controlled by the electronic valve, and the electromagnetic valve controls the purging valve of the hydraulic oil to replace the residual gas by inert gas.
The operation of the air injection valve, the window valve and the purge valve of the ME-GI diesel engine is controlled by hydraulic oil controlled by a solenoid valve, and each valve is connected with high-pressure control oil of 300bar and a low-pressure oil supply pipeline to ensure the operation of a corresponding control system of each valve. The valves are operated and controlled by combustible gas, and high tightness is required, so that the valves are provided with a high-pressure sealing oil system of 340bar, the tightness of each part is ensured, and the gas is prevented from leaking. Each valve is provided with a discharge pipeline and a gas leakage channel.
The operation of the jet valve, the window valve and the blow-down valve on the ME-GI diesel engine is provided with various pipeline channels and is suitable for the environment of high-pressure oil and gas, and a functional test before installation is necessary for ensuring the installation and operation correctness.
However, the prior art has not provided a test stand for common use with the air blast valve, the window valve and the purge valve, and therefore, there is a high necessity for a test stand for common or simultaneous test of the air blast valve, the window valve and the purge valve.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a universal testing device for multiple valves, which can solve the problem that a testing platform cannot be universal for three valves.
The purpose of the invention is realized by adopting the following technical scheme:
the utility model provides a test device that many valves are general, test device includes test bench, switch board, plummer, nitrogen gas jar, air input interface, nitrogen gas input interface, control oil supply hose, sealed oil supply hose, gas leak detection bottle, gas leak detection tube and set up and be in oil gas control system in the switch board, the plummer closes on the test bench sets up, set up on the plummer and supply to detect three fixing base that blow valve, window valve and jet-propelled valve put, air input interface, nitrogen gas input interface, control oil supply hose, sealed oil supply hose, gas supply hose all set up on the outer wall of switch board, set up a plurality of manometer and start-stop switch in the front of switch board, through oil gas control system in the switch board to control oil supply hose transport detection with control oil supply hose, The detection device comprises a bearing table, a sealing oil supply hose, a gas supply hose and a gas supply hose, wherein the sealing oil and the gas supply hose are used for conveying detection sealing.
Preferably, the oil-gas control system comprises a control oil path, a sealing oil path and a nitrogen gas flow path,
the control oil circuit comprises an oil filter, a first oil pump, a first oil meter, a control oil electromagnetic valve and a control oil supply hose which are sequentially connected with the hydraulic oil tank, and a power source of the first oil pump is provided by a high-pressure pump through a first low-pressure control valve, a first air pressure meter and a first high-pressure control valve;
the sealing oil circuit comprises an oil filter, a second oil pump, a second oil meter, a sealing oil electromagnetic valve and a sealing oil supply hose which are sequentially connected with the hydraulic oil tank, and a power source of the second oil pump is provided by a high-pressure pump through a second low-pressure control valve, a second air pressure meter and a second high-pressure control valve;
the nitrogen gas flow path comprises a nitrogen gas tank, a nitrogen gas input interface, a nitrogen gas pump, a nitrogen gas stop valve, a gas supply hose, a gas leakage detection bottle, an air tightness detection control valve and a silencer which are connected through a gas pipe, and nitrogen gas after detection of the gas leakage detection bottle is discharged through the silencer.
Preferably, the bottom ends of the first oil pump, the second oil pump and the hydraulic oil tank are provided with oil drainage paths, the oil drainage path of the first oil pump is provided with an oil control safety valve, the oil drainage path of the second oil pump is provided with a sealing oil safety valve, and the overpressure oil of the first oil pump, the second oil pump and the hydraulic oil tank is discharged to a hydraulic oil discharge tank below the bearing platform through the oil drainage paths.
Preferably, a filter cover is arranged at the top of the hydraulic oil tank.
Preferably, the control oil from the first oil pump flows into the control oil solenoid valve after passing through the nitrogen pump.
Preferably, the inlet pressure of the first low-pressure control valve and the inlet pressure of the second low-pressure control valve are controlled to be between 7 and 10 bar.
Preferably, the nitrogen pressure of the nitrogen tank is 30 bar-300 bar, and the nitrogen is pressurized to 300bar by a nitrogen pump.
Preferably, a nitrogen safety valve and a nitrogen supply pressure gauge are arranged on a pipeline at the downstream of the nitrogen stop valve, check valves are arranged at the air inlet end and the air outlet end of the nitrogen pump, and the pressure measurement range of the nitrogen supply pressure gauge is 0-600 bar.
Preferably, the control oil pressure after being boosted by the first oil pump is 300bar, the sealing oil pressure after being boosted by the second oil pump is 340bar, and the oil inlet and outlet ends of the first oil pump and the second oil pump are provided with one-way valves.
Preferably, the gauge heads of the first oil gauge, the first air pressure gauge, the second oil gauge, the second air pressure gauge and the nitrogen supply pressure gauge are arranged on a panel of the control cabinet, and the control oil electromagnetic valve, the first low-pressure control valve, the first high-pressure control valve, the sealing oil electromagnetic valve, the second low-pressure control valve and the second high-pressure control valve are controlled by the control cabinet to be opened, closed and supplied with power.
Preferably, the control oil solenoid valve and the sealing oil solenoid valve are two-position two-way solenoid valves.
Preferably, the control voltage of the two-position two-way electromagnetic valve is 24V direct current.
Compared with the prior art, the invention has the beneficial effects that: the air injection valve, the purging valve and the window valve are mounted to the working platform to simulate the mounting environment of a diesel engine, the simulation test is realized through hydraulic oil (control oil and sealing oil) supplied by a pump station and high-pressure nitrogen supplied by a nitrogen tank, the test bed or the working platform is good in compatibility, simple in structure, low in cost and convenient to popularize and apply.
Drawings
FIG. 1 is a schematic structural diagram of a testing apparatus for multiple valve applications according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of an oil and gas control system of the test rig;
FIG. 3 is a schematic view of a purge valve check connection;
FIG. 4 is a schematic view of a window valve detection connection;
fig. 5 is a schematic view of a jet valve detection connection.
In the figure: 40. a test bed; 41. a control cabinet; 47. a bearing table; 43. controlling an oil supply hose; 48. a seal oil supply hose; 42. a gas supply hose; 45. a gas leakage detection bottle; 46. a gas leakage detection pipe; 90. a hydraulic oil relief tank; 51. a purge valve; 52. a window valve; 53. an air blast valve; 1. a sealed oil safety valve; 2. a second low pressure control valve; 3. a control oil relief valve; 4. a first low pressure control valve; 6. a second barometer; 7. a nitrogen safety valve; 8. a first barometer; 9. a second oil meter; 10. nitrogen is supplied to a pressure gauge; 11. a first oil meter; 12. A nitrogen stop valve; 13. a three-way valve; 14. a first oil pump; 15. a second oil pump; 16. a hydraulic oil tank; 17. a second high pressure control valve; 18. a first high pressure control valve; 19. a check valve; 20. A filter cover; 21. an oil filter; 22. a muffler; 23. a nitrogen input interface; 24. controlling an oil solenoid valve; 25. an air input interface; 26. a nitrogen tank; 27. a valve body gas connecting port; 28. A gas stop valve; 29. a silencing stop valve; 31. a nitrogen pump; 32. and sealing the oil solenoid valve.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Referring to fig. 1 to 5, the testing device for multiple valves in general comprises a test bench 40, a control cabinet 41, a bearing table 47, a nitrogen tank 26, an air input interface 25, a filter cover 20, a nitrogen input interface 23, a control oil supply hose 43, a sealing oil supply hose 48, a gas supply hose 42, a gas leakage detection bottle 45, a gas leakage detection pipe 46, a hydraulic oil discharge tank 90 and an oil and gas control system arranged in the control cabinet 41, wherein the bearing table 47 is arranged adjacent to the test bench 40, three fixed seats for placing a purge valve 51 to be detected, a window valve 52 and an air injection valve 53 are arranged on the bearing table 47, the air input interface 25, the nitrogen input interface 23, the control oil supply hose 43, the sealing oil supply hose 48 and the gas supply hose 42 are all arranged on the outer wall of the control cabinet 41, a plurality of pressure meters and start and stop switches are arranged on the front face of the control cabinet 41, control oil for detection is supplied to the control oil supply hose 43, seal oil for detection is supplied to the seal oil supply hose 48, and substitute nitrogen gas for detection is supplied to the gas supply hose 42 by the oil-gas control system in the control cabinet 41, and three corresponding silencers 22 are provided below the three fixing seats of the plummer 47.
The oil and gas control system includes a control oil passage, a seal oil passage, and a nitrogen gas flow path, as shown in fig. 2-5, and described in detail below.
Control oil circuit
The control oil path includes an oil filter 21, a first oil pump 14, a first oil gauge 11, a control oil solenoid valve 24, and a control oil supply hose 43, which are connected to the hydraulic oil tank 16 in this order, and the power source of the first oil pump 14 is supplied from a high-pressure pump via the first low-pressure control valve 4, the first air pressure gauge 8, and the first high-pressure control valve 18.
A filter cover 20 is disposed on the top of the hydraulic oil tank 16, and referring to fig. 1, the upper portion of the filter cover 20 is protrudingly disposed on the top surface of the control cabinet 41. The filter is used for filtering hydraulic oil.
Sealed oil circuit
The sealed oil circuit comprises an oil filter 21, a second oil pump 15, a second oil meter 9, a sealed oil electromagnetic valve 32 and a sealed oil supply hose 48 which are sequentially connected with a hydraulic oil tank 16, and a power source of the second oil pump 15 is provided by a high-pressure pump through a second low-pressure control valve 2, a second air pressure meter 6 and a second high-pressure control valve 17;
further, the control oil from the first oil pump 14 flows into the control oil solenoid valve 24 after passing through the nitrogen pump 31. The control oil solenoid valve 24 and the seal oil solenoid valve 32 are two-position, two-way solenoid valves.
The heads of the first oil gauge 11, the first air pressure gauge 8, the second oil gauge 9, the second air pressure gauge 6 and the nitrogen gas supply pressure gauge 10 are arranged on the panel of the control cabinet 41, and the control oil electromagnetic valve 24, the first low-pressure control valve 4, the first high-pressure control valve 18, the sealing oil electromagnetic valve 32, the second low-pressure control valve 2 and the second high-pressure control valve 17 are controlled by the control cabinet 41 to be opened and closed and supplied with power.
Further, control oil circuit and sealed oil circuit all include after detecting and overvoltage protection's hydraulic oil draining oil circuit, specifically do: the bottom ends of the first oil pump 14, the second oil pump 15 and the hydraulic oil tank 16 are provided with oil drainage paths, the oil drainage path of the first oil pump 14 is provided with an oil control safety valve 3, the oil drainage path of the second oil pump 15 is provided with a sealed oil safety valve 1, and the overpressure oil of the first oil pump 14, the second oil pump 15 and the hydraulic oil tank 16 is discharged to a hydraulic oil discharge tank 90 below the bearing platform 47 through the oil drainage paths.
Nitrogen gas flow path
The nitrogen gas flow path includes a nitrogen gas tank 26, a nitrogen gas input port 23, a nitrogen gas pump 31, a nitrogen gas stop valve 12, a gas supply hose 42, a gas leakage detection bottle 45, an air tightness detection control valve, and a muffler 22, which are connected by a gas pipe, and the detected nitrogen gas discharged from the gas leakage detection bottle 45 is discharged via the muffler 22.
Pressure control parameter
The air inlet pressure of the first low-pressure control valve 4 and the second low-pressure control valve 2 is controlled to be between 7 and 10 bar.
The control oil pressure after being boosted by the first oil pump 14 is 300bar, the sealing oil pressure after being boosted by the second oil pump 15 is 340bar, and the oil inlet and outlet ends of the first oil pump 14 and the second oil pump 15 are provided with one-way valves.
The nitrogen pressure of the nitrogen tank 26 is 30 to 300bar, and the nitrogen is pressurized to 300bar by a nitrogen pump 31.
A nitrogen safety valve 7 and a nitrogen supply pressure gauge 10 are arranged on a pipeline at the downstream of the nitrogen stop valve 12, check valves 19 are arranged at the air inlet end and the air outlet end of the nitrogen pump 31, and the pressure measuring range of the nitrogen supply pressure gauge 10 is 0-600 bar.
The control voltage of the two-position two-way electromagnetic valve is 24V DC.
Principle of operation
For the purge valve detection, referring to fig. 3, firstly fixing a purge valve 51 on a purge valve fixing seat of the plummer 47, connecting the purge valve 51 with a sealing oil supply hose 48, connecting a valve body gas connecting port 27 of the purge valve 51 with a gas supply hose 42, and connecting an air tightness detection end to a gas leakage detection bottle 45 through a gas leakage detection pipe 46; the nozzle end of the purge valve 51 is connected to the muffler 22 through the three-way valve 13, and one end is connected to the gas leakage detecting bottle 45 through the gas stop valve 28. The tightness of the sealing oil and the tightness of the gas can be respectively detected through the control cabinet 41 or the tightness of the sealing oil and the tightness of the gas can be simultaneously detected, and the pressure gauge on the panel of the control cabinet 41 is used for observing and recording the air pressure and oil pressure conditions.
Window valve detection, referring to fig. 4, a window valve 52 is fixed on a window valve fixing seat of a bearing table 47, a sealing oil supply hose 48 and a control oil supply hose 43 are connected to the window valve 52, a valve body gas connecting port 27 of the window valve 52 is connected with a gas supply hose 42, and an air tightness detection end is connected to a gas leakage detection bottle 45 through a gas leakage detection pipe 46; the nozzle end of the window valve 52 is divided into two paths, one path is communicated to the silencer 22 through the silencing stop valve 29, and the other path is communicated to the gas leakage detection bottle 45 through the gas stop valve 28. The control cabinet 41 can be used for respectively detecting the sealing performance of control oil, sealing oil and gas or simultaneously detecting the sealing performance of the control oil, the sealing oil and the gas, and the pressure gauge on the panel of the control cabinet 41 is used for observing and recording the air pressure and oil pressure conditions.
For the air injection valve detection, referring to fig. 5, firstly fixing an air injection valve 53 on a purge valve fixing seat of a bearing table 47, connecting a sealing oil supply hose 48 to the air injection valve 53, connecting a valve body gas connecting port 27 of the air injection valve 53 with a gas supply hose 42, and connecting an air tightness detection end to a gas leakage detection bottle 45 through a gas leakage detection pipe 46; the nozzle end of the air injection valve 53 is connected to the silencer 22 through one end of the three-way valve 13, and one end of the air injection valve is communicated to the gas leakage detection bottle 45 through the gas stop valve 28. The tightness of the sealing oil and the tightness of the gas can be respectively detected through the control cabinet 41 or the tightness of the sealing oil and the tightness of the gas can be simultaneously detected, and the pressure gauge on the panel of the control cabinet 41 is used for observing and recording the air pressure and oil pressure conditions.
The over-pressure oil of the purge valve 51, the window valve 52 and the air injection valve 53 is discharged to the hydraulic oil drain tank 90 through the over-pressure oil pipe.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. The utility model provides a test device that many valves were general, test device include test bench (40), switch board (41), plummer (47), nitrogen gas jar (26), air input interface (25), nitrogen gas input interface (23), control oil supply hose (43), sealed oil supply hose (48), gas supply hose (42), gas are revealed and are detected bottle (45), gas are revealed and are detected pipe (46) and set up and be in oil gas control system in switch board (41), its characterized in that: the bearing table (47) is arranged close to the test bed (40), three fixed seats for placing a purge valve (51) to be detected, a window valve (52) and an air injection valve (53) are arranged on the bearing table (47), the air input interface (25), the nitrogen input interface (23), the control oil supply hose (43), the sealing oil supply hose (48) and the fuel gas supply hose (42) are all arranged on the outer wall of the control cabinet (41), a plurality of pressure meters and start-stop switches are arranged on the front surface of the control cabinet (41), control oil for detection is conveyed to a control oil supply hose (43), sealing oil for detection is conveyed to a sealing oil supply hose (48) and nitrogen for substitution detection is conveyed to a gas supply hose (42) through an oil-gas control system in the control cabinet (41), and three corresponding silencers (22) are arranged below the three fixed seats of the bearing table (47).
2. The test device of claim 1, wherein: the oil-gas control system comprises a control oil path, a sealing oil path and a nitrogen flow path,
the control oil path comprises an oil filter (21), a first oil pump (14), a first oil meter (11), a control oil electromagnetic valve (24) and a control oil supply hose (43) which are sequentially connected with a hydraulic oil tank (16), and a power source of the first oil pump (14) is provided by a high-pressure pump through a first low-pressure control valve (4), a first air pressure meter (8) and a first high-pressure control valve (18);
the sealing oil path comprises an oil filter (21), a second oil pump (15), a second oil meter (9), a sealing oil electromagnetic valve (32) and a sealing oil supply hose (48) which are sequentially connected with a hydraulic oil tank (16), and a power source of the second oil pump (15) is provided by a high-pressure pump through a second low-pressure control valve (2), a second air pressure meter (6) and a second high-pressure control valve (17);
the nitrogen gas flow path comprises a nitrogen gas tank (26), a nitrogen gas input interface (23), a nitrogen gas pump (31), a nitrogen gas stop valve (12), a gas supply hose (42), a gas leakage detection bottle (45), an air tightness detection control valve and a silencer (22), wherein the nitrogen gas after detection from the gas leakage detection bottle (45) is discharged through the silencer (22).
3. The test device of claim 2, wherein: the bottom of first oil pump (14), second oil pump (15) and hydraulic oil tank (16) sets up the draining oil circuit to set up control oil relief valve (3) on the draining oil circuit of first oil pump (14), set up sealed oil relief valve (1) on the draining oil circuit of second oil pump (15), the excessive pressure oil of first oil pump (14), second oil pump (15) and hydraulic oil tank (16) is discharged to hydraulic oil relief tank (90) of plummer (47) below through the draining oil circuit.
4. The test device of claim 2, wherein: and a filter cover (20) is arranged at the top of the hydraulic oil tank (16).
5. The test device of claim 2, wherein: and the control oil from the first oil pump (14) flows into the control oil electromagnetic valve (24) after passing through the nitrogen pump (31).
6. The test device of claim 2, wherein: and the inlet pressure of the first low-pressure control valve (4) and the second low-pressure control valve (2) is controlled to be between 7 and 10 bar.
7. The test device of claim 2, wherein: the nitrogen pressure of the nitrogen tank (26) is 30-300 bar, and the nitrogen is pressurized to 300bar by a nitrogen pump (31).
8. The testing device of claim 7, wherein: a nitrogen safety valve (7) and a nitrogen supply pressure gauge (10) are arranged on a pipeline at the downstream of the nitrogen stop valve (12), check valves (19) are arranged at the air inlet end and the air outlet end of the nitrogen pump (31), and the pressure measuring range of the nitrogen supply pressure gauge (10) is 0-600 bar.
9. The test device of claim 2, wherein: the oil pressure of the control oil boosted by the first oil pump (14) is 300bar, the oil pressure of the sealing oil boosted by the second oil pump (15) is 340bar, and the oil inlet end and the oil outlet end of the first oil pump (14) and the second oil pump (15) are provided with one-way valves.
10. The testing device of claim 8, wherein: the gauge heads of the first oil gauge (11), the first air pressure gauge (8), the second oil gauge (9), the second air pressure gauge (6) and the nitrogen supply pressure gauge (10) are arranged on a panel of the control cabinet (41), and the control oil electromagnetic valve (24), the first low-pressure control valve (4), the first high-pressure control valve (18), the sealing oil electromagnetic valve (32), the second low-pressure control valve (2) and the second high-pressure control valve (17) are controlled by the control cabinet (41) to be opened, closed and supplied with power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921804093.8U CN211013376U (en) | 2019-10-25 | 2019-10-25 | Testing device for universal use of multiple valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921804093.8U CN211013376U (en) | 2019-10-25 | 2019-10-25 | Testing device for universal use of multiple valves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211013376U true CN211013376U (en) | 2020-07-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921804093.8U Active CN211013376U (en) | 2019-10-25 | 2019-10-25 | Testing device for universal use of multiple valves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211013376U (en) |
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- 2019-10-25 CN CN201921804093.8U patent/CN211013376U/en active Active
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