CN214837526U - Oil return protection device of large-flow static oil separator control unit - Google Patents
Oil return protection device of large-flow static oil separator control unit Download PDFInfo
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- CN214837526U CN214837526U CN202120946235.5U CN202120946235U CN214837526U CN 214837526 U CN214837526 U CN 214837526U CN 202120946235 U CN202120946235 U CN 202120946235U CN 214837526 U CN214837526 U CN 214837526U
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Abstract
The utility model relates to a hydraulic test equipment technical field discloses a large-traffic static oil separator the control unit's oil return protection device, including the control unit valve body, the control unit valve body lower part is provided with the passageway diverter valve, the passageway diverter valve divide into two parts, and partly is located inside the control unit valve body, and another part is located the control unit valve body outside, the part that the passageway diverter valve is located the control unit valve body is provided with oil inlet, oil-out and oil return opening, the control unit valve body lower part is equipped with oil feed passageway and oil return passageway, oil inlet and oil feed passageway swing joint, oil return opening and oil return passageway one end swing joint, oil return passageway's the other end and oil tank are connected. The utility model discloses a under non-control and non-operating condition, the hydraulic oil of the inside clearance seepage of hydraulic pressure spare can flow away through return passage water conservancy diversion, can not cause the phenomenon that the actuator piston continues slowly to stretch out or retract, reaches the purpose of protection test.
Description
Technical Field
The utility model relates to a hydraulic test equipment technical field especially relates to a large-traffic static oil separator control unit's oil return protection device.
Background
In a large multifunctional structure test system, a plurality of servo actuators are needed to complete the test, so that a large-flow oil source, a large-flow pipeline and a plurality of large-flow static oil separators connected to the pipeline are needed to complete the multi-channel test, and each oil separator needs to be controlled by a different controller. In practice, typically, many tests require only part of the oil separator to operate.
Because clearance leakage exists in the hydraulic part in the oil separator, in a non-control and non-working state, leaked hydraulic oil can reach the servo actuator through the control units in the oil separator which do not need to work, so that the piston of the actuator continuously extends out or retracts slowly, the test process is interfered, and the test result is damaged.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a large-traffic static oil separator control unit's oil return protection device.
The utility model provides a pair of large-traffic static oil separator control unit's oil return protection device adopts following technical scheme:
the utility model provides a large-traffic static oil separator control unit's oil return protection device, includes the control unit valve body, control unit valve body lower part is provided with the passageway diverter valve, the passageway diverter valve divide into two parts, and one part is located inside the control unit valve body, and another part is located the control unit valve body outside, the part that the passageway diverter valve is located the control unit valve body is provided with oil inlet, oil-out and oil return opening, control unit valve body lower part is equipped with oil feed passageway and oil return passageway, oil inlet and oil feed passageway swing joint, oil return opening and oil return passageway one end swing joint, oil return passageway's the other end and oil tank are connected.
By adopting the technical scheme, the hydraulic oil leaking from the gap inside the hydraulic part can be guided away through the oil return channel under the non-control and non-working states, the phenomenon that the piston of the actuator slowly extends out or retracts cannot be caused, and the purpose of a protection test is achieved.
Preferably, a servo valve is arranged on the top of the control unit valve body.
Preferably, a first channel interface and a second channel interface are arranged on the side wall of the valve body of the control unit.
Preferably, the first channel interface and the second channel interface are both connected with the actuator, the first channel interface is an oil inlet interface, and the second channel interface is an oil return interface.
Preferably, a check valve is arranged in the control unit valve body.
Preferably, the check valve is disposed on a reverse flow passage in the control unit valve body.
Through adopting above-mentioned technical scheme, prevent that hydraulic oil from returning to the actuator.
To sum up, the utility model discloses a beneficial technological effect:
1. the utility model discloses can realize under non-control and non-operating condition, the hydraulic oil of the inside clearance seepage of hydraulic part can flow away through return channel water conservancy diversion, can not cause the phenomenon that the actuator piston continues slowly to stretch out or retract, reaches the purpose of protection test.
2. The utility model discloses well check valve's application, great reduction the inside clearance leakage volume of hydraulic pressure spare.
Drawings
Fig. 1 is a schematic structural diagram of an oil return protection device of a large-flow static oil separator control unit in the present invention;
fig. 2 is a side view of fig. 1.
Wherein: 1. a control unit valve body; 2. a channel switching valve; 3. an oil inlet channel; 4. an oil return passage; 5. a servo valve; 6. a one-way valve; 7. a first channel interface; 8. an oil inlet; 9. an oil return port; 10. an oil outlet; 11. an oil tank; 12. a second channel interface; 13. an actuator.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The embodiment of the utility model discloses large-traffic static oil separator control unit's oil return protection device. Referring to fig. 1, including the control unit valve body 1, the top of the control unit valve body 1 is provided with servo valve 5, be provided with passageway interface 7 and passageway interface two 12 on the control unit valve body 1 lateral wall, be provided with check valve 6 in the control unit valve body 1, check valve 6 sets up on the backward flow passageway in the control unit valve body 1.
Referring to fig. 2, 1 lower part of the control unit valve body is provided with the passageway diverter valve 2, the passageway diverter valve 2 divide into two parts, and one part is located inside the control unit valve body 1, and another part is located outside the control unit valve body 1, the part that the passageway diverter valve 2 is located the control unit valve body 1 is provided with oil inlet 8, oil-out 10 and oil return opening 9, 1 lower part of the control unit valve body is equipped with oil feed passageway 3 and oil return passageway 4, oil inlet 8 and 3 swing joint of oil feed passageway, oil return opening 9 and 4 one end swing joint of oil return passageway, the other end and the oil tank 11 of oil return passageway 4 are connected, channel interface one 7 and channel interface two 12 all are connected with actuator 13, channel interface one 7 is the oil feed interface, channel interface two 12 is the oil return interface.
The embodiment of the utility model provides a large-traffic static oil separator control unit's oil return protection device: hydraulic oil from an oil source reaches the control unit through the oil separator, the hydraulic oil enters the control unit valve body 1 from the oil inlet channel 3 of the control unit valve body 1 and enters the channel switching valve 2 through the oil inlet 8 of the channel switching valve 2, the channel switching valve 2 enables the hydraulic oil to enter the servo valve 5 from the oil outlet 10 through reversing, and the servo valve 5 enables the hydraulic oil to reach the actuator 13 through the channel interface I7 through control of the controller. The hydraulic oil returned from the actuator 13 passes through the second port 12, the servo valve 5, and the check valve 6 in this order, and is returned to the oil tank 11. When the channel switching valve 2 is closed, the oil separator is in a non-control and non-working state, the oil inlet 8 is not communicated with the oil inlet channel 3, the oil outlet 10 is in a closed state, the oil return port 9 is communicated with the oil return channel 4, hydraulic oil leaked from a gap of a hydraulic part enters the oil return channel 4 of the control unit valve body 1 through the oil return port 9 of the channel switching valve 2 and flows back to the oil tank 11, the situation that the hydraulic oil reaches the actuator 13 through the servo valve 5 and the channel interface I7 to cause the piston of the actuator 13 to continuously extend or retract is avoided, and the purpose of a protection test is achieved. The control unit is arranged on a large-flow static oil separator, normal work of the control unit is realized through control of an external servo controller, and DC24V electric power needs to be provided from the outside to ensure normal work of the control unit.
Above is the preferred embodiment of the utility model, not limit according to this the utility model discloses a protection scope, the event: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (6)
1. An oil return protection device of a large-flow static oil separator control unit is characterized in that: including the control unit valve body (1), the control unit valve body (1) lower part is provided with passageway diverter valve (2), passageway diverter valve (2) divide into two parts, and partly is located inside the control unit valve body (1), and another part is located the outside of the control unit valve body (1), the part that passageway diverter valve (2) is located the control unit valve body (1) is provided with oil inlet (8), oil-out (10) and oil return opening (9), the control unit valve body (1) lower part is equipped with oil feed passageway (3) and oil return passageway (4), oil inlet (8) and oil feed passageway (3) swing joint, oil return opening (9) and oil return passageway (4) one end swing joint, the other end and oil tank (11) of oil return passageway (4) are connected.
2. The oil return protection device of the high-flow static oil separator control unit according to claim 1, characterized in that: and a servo valve (5) is arranged at the top of the control unit valve body (1).
3. The oil return protection device of the high-flow static oil separator control unit according to claim 1 or 2, characterized in that: and a first channel interface (7) and a second channel interface (12) are arranged on the side wall of the control unit valve body (1).
4. The oil return protection device of the high-flow static oil separator control unit according to claim 3, characterized in that: the first channel interface (7) and the second channel interface (12) are both connected with the actuator (13), the first channel interface (7) is an oil inlet interface, and the second channel interface (12) is an oil return interface.
5. The oil return protection device of the high-flow static oil separator control unit according to claim 1 or 2, characterized in that: a check valve (6) is arranged in the control unit valve body (1).
6. The oil return protection device of the high-flow static oil separator control unit according to claim 5, characterized in that: the check valve (6) is arranged on a reverse flow channel in the control unit valve body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120946235.5U CN214837526U (en) | 2021-05-06 | 2021-05-06 | Oil return protection device of large-flow static oil separator control unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120946235.5U CN214837526U (en) | 2021-05-06 | 2021-05-06 | Oil return protection device of large-flow static oil separator control unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214837526U true CN214837526U (en) | 2021-11-23 |
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ID=78772120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120946235.5U Active CN214837526U (en) | 2021-05-06 | 2021-05-06 | Oil return protection device of large-flow static oil separator control unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214837526U (en) |
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2021
- 2021-05-06 CN CN202120946235.5U patent/CN214837526U/en active Active
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