CN219827306U - High-pressure medium pressure reducing device - Google Patents
High-pressure medium pressure reducing device Download PDFInfo
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- CN219827306U CN219827306U CN202321172877.XU CN202321172877U CN219827306U CN 219827306 U CN219827306 U CN 219827306U CN 202321172877 U CN202321172877 U CN 202321172877U CN 219827306 U CN219827306 U CN 219827306U
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- 230000002093 peripheral effect Effects 0.000 claims abstract description 7
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 5
- 239000003921 oil Substances 0.000 claims 33
- 239000010720 hydraulic oil Substances 0.000 claims 1
- 230000008901 benefit Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 6
- 230000007547 defect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
The utility model discloses a high-pressure medium pressure reducing device which comprises a pressure oil tank, an oil supply pipeline, a servomotor, an oil supply valve, a pressure reducing valve, a first shutoff valve and a second shutoff valve, wherein the oil supply pipeline is communicated with the pressure oil tank and the servomotor, the servomotor is in driving connection with a barrel valve body, the oil supply valve is arranged on the oil supply pipeline so as to control the on-off of the oil supply pipeline, a first interface positioned at the upstream of the oil supply valve and a second interface positioned at the downstream of the oil supply valve are arranged on the peripheral wall of the oil supply pipeline, the pressure reducing valve is provided with an oil inlet, an oil outlet and an oil return port positioned between the oil inlet and the oil outlet, the oil inlet of the pressure reducing valve is communicated with the first interface through the first shutoff valve, the oil outlet of the pressure reducing valve is communicated with the pressure oil tank through the second shutoff valve and the second interface, and the oil return port of the pressure reducing valve is communicated with the pressure oil tank. The high-pressure medium pressure reducing device provided by the utility model has the advantage of saving labor and time.
Description
Technical Field
The utility model relates to the technical field of hydraulic systems, in particular to a high-pressure medium pressure reducing device.
Background
At present, the normal oil pressure of a pressure oil tank of a hydraulic system of a tail power station barrel valve is 5.8-6.3MPa, and when a hydraulic system pipeline or a barrel valve servomotor of the barrel valve is overhauled, maintained or subjected to defect treatment, air is mixed in the inner space of the hydraulic system pipeline or the barrel valve servomotor, so that the hydraulic system pipeline or the barrel valve servomotor is required to be exhausted after the overhauled, maintained or subjected to defect treatment. In the related art, the oil pressure of a pressure oil tank is generally released to a safe oil pressure through a relief valve, and then the oil in the pressure oil tank is led into a cylinder valve hydraulic system pipeline or a cylinder valve servomotor, so that the purpose of exhausting is achieved. However, the above-mentioned safety oil pressure is 0.8 to 1.2MPa, the pressure relief takes a long time, and the pressure tank needs to be re-pressurized after the end of the air discharge, which takes a lot of labor and time.
Disclosure of Invention
The present utility model aims to solve at least one of the technical problems in the related art to some extent. To this end, embodiments of the present utility model provide a high pressure medium pressure reducing device that has the advantage of saving labor and time.
The high-pressure medium pressure reducing device comprises a pressure oil tank, an oil supply pipeline, a servomotor, an oil supply valve, a pressure reducing valve, a first shutoff valve and a second shutoff valve, wherein the oil supply pipeline is communicated with the pressure oil tank and the servomotor, and the servomotor is in driving connection with a barrel valve body; the oil supply valve is arranged on the oil supply pipeline so as to control the on-off of the oil supply pipeline; the periphery wall of the oil supply pipeline is provided with a first interface positioned at the upstream of the oil supply valve and a second interface positioned at the downstream of the oil supply valve, the pressure reducing valve is provided with an oil inlet, an oil outlet and an oil return port positioned between the oil inlet and the oil outlet, the oil inlet of the pressure reducing valve is communicated with the first interface through the first shutoff valve, the oil outlet of the pressure reducing valve is communicated with the second interface through the second shutoff valve, and the oil return port of the pressure reducing valve is communicated with the pressure oil tank.
According to the high-pressure medium pressure reducing device disclosed by the embodiment of the utility model, when air exists in the servomotor and needs to be emptied, the oil supply valve is closed, the first shutoff valve and the second shutoff valve are opened, the oil in the pressure oil tank flows into the pressure reducing valve through the first interface and the oil inlet, the pressure of the oil is reduced by the pressure reducing valve, and then the oil flows into the downstream of the oil supply pipeline through the oil outlet and the second interface, flows into the servomotor and presses the air in the servomotor, so that the air in the servomotor is discharged.
From the above, the pressure of the oil liquid is reduced through the pressure reducing valve, so that the pressure reducing valve is simple, convenient and easy to operate, and has high pressure reducing speed and short time consumption. In addition, the design of the pressure reducing valve avoids the pressure relief process of the pressure oil tank, so that the pressure oil tank is free from being pressurized again, and labor and time are saved.
In some embodiments, the high-pressure medium pressure reducing device further comprises an oil return tank and an oil pump, wherein the oil return tank is communicated with the oil return port and the pressure oil tank; the oil return tank is communicated with the pressure oil tank through the oil pump.
In some embodiments, the high-pressure medium pressure reducing device further includes a third shut-off valve, and the oil return port communicates with the oil return tank through the third shut-off valve.
In some embodiments, the number of the relays is plural and is distributed at intervals in the circumferential direction of the spool valve body, and each of the plural relays is in communication with the oil supply pipe.
In some embodiments, the servomotor includes a cylinder having an inner cavity, a piston, and a piston rod; the piston is slidably matched with the inner cavity and divides the inner cavity into a first cavity and a second cavity, a first air hole communicated with the first cavity and the outside and a second air hole communicated with the second cavity and the outside are formed in the peripheral wall of the cylinder barrel, the first air hole is positioned at one end of the first cavity, which is away from the piston, the second air hole is positioned at one end of the second cavity, which is away from the piston, and the first cavity and the second cavity are both communicated with the oil supply pipeline; the first end wall of the cylinder barrel is provided with a through hole communicated with the first cavity and the outside, the first end of the piston rod is positioned in the first cavity and connected with the piston, and the second end of the piston rod protrudes out of the cylinder barrel from the through hole and is connected with the cylinder valve body.
In some embodiments, the servomotor further comprises a first threaded plug and a second threaded plug, the first air hole being a threaded hole, the first threaded plug being threadedly engaged with the first air hole; the second air hole is a threaded hole, and the second threaded plug is in threaded fit with the second air hole.
In some embodiments, the servomotor further comprises a valve block, wherein the first cavity and the second cavity are connected with the oil supply pipeline through the valve block, and the valve block is suitable for controlling on-off of oil flow of the oil supply pipeline to the first cavity and the second cavity.
In some embodiments, the high-pressure medium pressure reducing device further comprises a pressure reducing pipeline, two ends of the pressure reducing pipeline are respectively connected with the first interface and the second interface, and the first shutoff valve, the oil supply valve and the second shutoff valve are sequentially connected in series with the pressure reducing pipeline.
In some embodiments, the high pressure medium pressure relief device further comprises a pressure gas tank and a gas transfer line, a first end of the gas transfer line is in communication with the pressure gas tank, and a second end of the gas transfer line is in communication with the pressure tank and above a liquid level in the pressure tank.
In some embodiments, the high pressure medium pressure reducing device further comprises an air compressor, the air compressor being connected to the pressure gas tank.
Drawings
Fig. 1 is a schematic view of a high pressure medium pressure reducing device according to an embodiment of the present utility model.
Reference numerals: 1. a pressure oil tank; 2. an oil supply pipe; 3. a servomotor; 31. a cylinder; 32. a piston; 33. a piston rod; 34. a first chamber; 35. a second chamber; 4. an oil supply valve; 5. a pressure reducing valve; 51. a first shut-off valve; 52. a second shut-off valve; 53. a third shut-off valve; 6. a cartridge valve body; 7. a pressure reducing pipe; 8. a pressure gas tank; 9. and a gas pipeline.
Detailed Description
Reference will now be made in detail to embodiments of the present utility model, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.
A high-pressure medium pressure reducing device according to an embodiment of the present utility model is described below with reference to fig. 1.
As shown in fig. 1, the high-pressure medium pressure reducing device according to the embodiment of the utility model comprises a pressure oil tank 1, an oil supply pipeline 2, a servomotor 3, an oil supply valve 4, a pressure reducing valve 5, a first shut-off valve 51 and a second shut-off valve 52, wherein the oil supply pipeline 2 is in driving connection with the pressure oil tank 1 and the servomotor 3, and the servomotor 3 is in driving connection with a barrel valve body 6. The oil supply valve 4 is installed on the oil supply pipe 2 to control on-off of the oil supply pipe 2. The peripheral wall of the oil supply pipeline 2 is provided with a first interface positioned at the upstream of the oil supply valve 4 and a second interface positioned at the downstream of the oil supply valve 4, the pressure reducing valve 5 is provided with an oil inlet, an oil outlet and an oil return port positioned between the oil inlet and the oil outlet, the oil inlet of the pressure reducing valve 5 is communicated with the first interface through a first shut-off valve 51, the oil outlet of the pressure reducing valve 5 is communicated with the second interface through a second shut-off valve 52, and the oil return port of the pressure reducing valve 5 is communicated with the pressure oil tank 1.
According to the high-pressure medium pressure reducing device provided by the embodiment of the utility model, the first shutoff valve 51 and the second shutoff valve 52 are normally closed, the oil supply valve 4 is opened, the oil in the pressure oil tank flows into the servomotor 3 through the oil supply pipeline 2, the servomotor 3 is pushed to operate, and the servomotor 3 pushes the barrel valve body 6 to move.
When air exists in the servomotor 3 and the air needs to be emptied, the oil supply valve 4 is closed, the first shutoff valve 51 and the second shutoff valve 52 are opened, oil in the pressure oil tank flows into the pressure reducing valve 5 through the first interface and the oil inlet, the pressure of the oil is reduced by the pressure reducing valve 5, then the oil flows into the downstream of the oil supply pipeline 2 through the oil outlet and the second interface, flows into the servomotor 3 and presses the air in the servomotor 3, and accordingly the air in the servomotor 3 is discharged.
From the above, the pressure of the oil is reduced through the pressure reducing valve 5, so that the method is simple, convenient, easy to operate, high in pressure reducing speed and short in time consumption. In addition, the design of the pressure reducing valve 5 avoids the pressure relief process of the pressure oil tank 1, so that the pressure oil tank 1 is free from being re-pressurized, and labor and time are saved.
When the pressure reducing valve 5 reduces the pressure of the oil, the oil is split, and part of the split oil flows back into the pressure oil tank 1 through the oil return port.
Wherein the oil pressure in the pressure oil tank 1 is 5.8-6.3Mpa, and the pressure of the oil after the pressure reduction valve 5 reduces is 0.8-1.2 Mpa.
Specifically, the oil supply valve 4 is a shut-off valve.
In some embodiments, as shown in fig. 1, the high-pressure medium pressure reducing device further comprises an oil return tank and an oil pump, wherein the oil return tank is communicated with the oil return port and the pressure oil tank 1. The return tank is communicated with the pressure oil tank 1 through an oil pump.
Thus, the oil return tank realizes the accumulation of the oil which is separated from the oil return port, and the oil pump is used for pumping the oil in the oil return tank into the pressure oil tank 1, thereby realizing the backflow of the oil.
In some embodiments, as shown in fig. 1, the high-pressure medium pressure reducing device further includes a third shut-off valve 53, and the oil return port communicates with the oil return tank through the third shut-off valve 53.
The third shutoff valve 53 is used to control the on-off of the flow of oil flowing out from the oil return port to the oil return tank.
Specifically, the high-pressure medium pressure reducing device further comprises a backflow pipeline, a third interface is arranged on the peripheral wall of the pressure oil tank 1, two ends of the backflow pipeline are respectively connected with the oil return port and the third interface, and a third shut-off valve 53, the oil return tank and the oil pump are sequentially connected in series with the backflow pipeline. The return pipeline is used for guiding the oil in the oil return port into the pressure oil tank 1.
In some embodiments, as shown in fig. 1, the number of the relays 3 is plural and is distributed at intervals in the circumferential direction of the spool valve body 6, and each of the plural relays 3 is in communication with the oil supply pipe 2.
Thereby, the oil supply pipe 2 is used for supplying oil to the plurality of relays 3, so that the synchronous operation of the plurality of relays 3 is realized, and further, the movement of the cylinder valve body 6 is realized. In addition, the distribution mode of the plurality of the servomotors 3 improves the stress uniformity of the barrel valve body 6, and the servomotors 3 can drive the barrel valve body 6 to move conveniently.
Specifically, the plurality of relays 3 are equally spaced in the circumferential direction of the spool valve body 6.
In some embodiments, as shown in fig. 1, the servomotor 3 includes a cylinder 31, a piston 32, and a piston rod 33, the cylinder 31 having an interior cavity. The piston 32 is slidably fitted in the inner cavity and divides the inner cavity into a first cavity 34 and a second cavity 35, the peripheral wall of the cylinder 31 is provided with a first air hole communicating the first cavity 34 with the outside and a second air hole communicating the second cavity 35 with the outside, the first air hole is positioned at one end of the first cavity 34 away from the piston 32, the second air hole is positioned at one end of the second cavity 35 away from the piston 32, and both the first cavity 34 and the second cavity 35 are communicated with the oil supply pipeline 2. The first end wall of the cylinder 31 is provided with a through hole communicating the first cavity 34 with the outside, the first end of the piston rod 33 is positioned in the first cavity 34 and connected with the piston 32, and the second end of the piston rod 33 protrudes from the cylinder 31 through the through hole and is connected with the cylinder valve body 6.
The oil supply pipeline 2 can supply oil to the first cavity 34 and the second cavity 35, the oil in the first cavity 34 and the second cavity 35 drives the piston 32 to slide in the inner cavity, and the piston 32 drives the piston rod 33 to stretch and retract, so that the cylinder valve body 6 moves.
In addition, when air is required to be exhausted from the first chamber 34 of the relay 3, the oil lowered by the pressure reducing valve 5 flows into the first chamber 34 through the oil supply pipe 2 and accumulates in the first chamber 34, thereby compressing the air in the first chamber 34 and forcing the air to be exhausted through the first air hole, thereby realizing the exhaustion of the first chamber 34 of the relay 3.
When air in the second cavity 35 of the servomotor 3 needs to be emptied, the oil liquid lowered by the pressure reducing valve 5 flows into the second cavity 35 through the oil supply pipeline 2 and accumulates in the second cavity 35, so that the air in the second cavity 35 is extruded and forced to be discharged outwards through the second air hole, and the second cavity 35 of the servomotor 3 is exhausted.
In some embodiments, as shown in fig. 1, the servomotor 3 further includes a first threaded plug and a second threaded plug, the first air hole being a threaded hole, the first threaded plug being threadedly engaged with the first air hole. The second air hole is a threaded hole, and the second threaded plug is in threaded fit with the second air hole.
The first threaded plug is used for blocking the first air hole, so that oil in the first cavity 34 is prevented from overflowing from the first air hole when the servomotor 3 operates. The second screw plug is used for blocking the second air hole, so that oil in the second cavity 35 is prevented from overflowing from the second air hole when the servomotor 3 operates. In addition, the first threaded plug is in threaded fit with the first air hole, so that the effect that the first threaded plug is detachable from the first air hole is achieved; the second thread plug is in threaded fit with the second air hole, so that the effect that the second thread plug is detachable from the second air hole is achieved.
In some embodiments, as shown in fig. 1, the relay 3 further comprises a valve block, wherein the first cavity 34 and the second cavity 35 are connected to the oil supply pipeline 2 through the valve block, and the valve block is adapted to control the on-off of the oil flow of the oil supply pipeline 2 to the first cavity 34 and the second cavity 35.
In other words, the oil supply pipeline 2, the valve group and the first cavity 34 form a first oil path, the oil supply pipeline 2, the valve group and the second cavity 35 form a second oil path, and the valve group is used for controlling the on-off of the first oil path and the second oil path, so that the oil supply effect of the oil supply pipeline 2 to the first cavity 34/the second cavity 35 is achieved, and the effect that the oil drives the piston 32 to slide is achieved.
In some embodiments, as shown in fig. 1, the high-pressure medium pressure reducing device further includes a pressure reducing pipeline 7, two ends of the pressure reducing pipeline 7 are respectively connected with the first interface and the second interface, and the first shutoff valve 51, the pressure reducing valve 5 and the second shutoff valve 52 are sequentially connected in series with the pressure reducing pipeline 7.
The pressure reducing pipeline 7 is used for guiding oil liquid, and achieves the effect that the oil liquid flows to the pressure reducing valve 5.
In some embodiments, as shown in fig. 1, the high-pressure medium pressure reducing device further includes a pressure gas tank 8 and a gas pipe 9. The first end of the gas transmission pipeline 9 is communicated with the pressure gas tank 8, and the second end of the gas transmission pipeline 9 is communicated with the pressure oil tank 1 and is positioned above the liquid level in the pressure oil tank 1.
The pressure gas tank 8 supplies high-pressure air to the pressure oil tank 1 through the gas transmission pipeline 9, the high-pressure air presses down the liquid level of the oil in the pressure oil tank 1, and the oil in the pressure oil tank 1 is forced to flow outwards through the oil supply pipeline 2, so that the oil in the pressure oil tank 1 is discharged outwards.
In some embodiments, as shown in fig. 1, the high pressure medium pressure reducing device further comprises an air compressor, which is connected to the pressure gas tank 8.
The air compressor is used for compressing air and inputting high-pressure air into the pressure air tank 8, so that the pressure of the high-pressure air in the pressure air tank 8 is constant, the pressure of oil discharged into the oil supply pipeline 2 by the pressure oil tank 1 is constant, and the stability of the pressure air tank 8 and the pressure oil tank 1 is improved.
In summary, the high-pressure medium pressure reducing device provided by the embodiment of the utility model has the following technical effects:
1. after the pressure reducing valve 5 is applied, when the cylinder valve hydraulic system pipeline or the servomotor 3 needs to be exhausted due to overhauling, maintenance and defect treatment, the pressure oil tank 1 does not need to be decompressed, so that the operation time, workload and labor are greatly saved, the operation risk is reduced by 90.5%, and the operation time is reduced from 420min to 5min.
2. The high-pressure medium pressure reducing device has the advantages of simple structure, stable and reliable functions, convenient operation, adjustable secondary pressure of the pressure reducing valve 5 between 0.3 and 6.3MPa, and the staff can select proper safety pressure according to the actual situation of the site so as to ensure personal safety.
3. The pressure reducing valve 5 and the oil supply valve 4 are arranged in parallel, so that the pressure reducing link and the oil supply link are mutually independent and are not influenced.
4. After the pressure reducing valve 5 is applied, the pressure oil tank 1 does not need to be re-pressurized, so that the use frequency of the air compressor is reduced, and the service life of the air compressor is prolonged.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
For purposes of this disclosure, the terms "one embodiment," "some embodiments," "example," "a particular example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While the above embodiments have been shown and described, it should be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives, and variations of the above embodiments may be made by those of ordinary skill in the art without departing from the scope of the utility model.
Claims (10)
1. A high pressure medium pressure reducing device, comprising:
the hydraulic oil tank is connected with the servomotor through the oil supply pipeline, and the servomotor is connected with the barrel valve body through a driving mode;
the oil supply valve is arranged on the oil supply pipeline so as to control the on-off of the oil supply pipeline; and
the oil supply pipeline is characterized by comprising a pressure reducing valve, a first shut-off valve and a second shut-off valve, wherein a first interface positioned at the upstream of the oil supply valve and a second interface positioned at the downstream of the oil supply valve are arranged on the peripheral wall of the oil supply pipeline, the pressure reducing valve is provided with an oil inlet, an oil outlet and an oil return port positioned between the oil inlet and the oil outlet, the oil inlet of the pressure reducing valve is communicated with the first interface through the first shut-off valve, the oil outlet of the pressure reducing valve is communicated with the second interface through the second shut-off valve, and the oil return port of the pressure reducing valve is communicated with the pressure oil tank.
2. The high-pressure medium pressure reducing device according to claim 1, further comprising:
the oil return tank is communicated with the oil return port and the pressure oil tank; and
the oil return tank is communicated with the pressure oil tank through the oil pump.
3. The high-pressure medium pressure reducing device according to claim 2, further comprising a third shut-off valve, wherein the oil return port communicates with the oil return tank through the third shut-off valve.
4. The high pressure medium pressure reducing device according to claim 1, wherein a plurality of said relays are provided and are arranged at intervals in a circumferential direction of said cylinder valve body, and each of a plurality of said relays is in communication with said oil supply pipe.
5. The high pressure medium pressure relief device as set forth in claim 4, wherein said servomotor comprises:
a cylinder having an inner cavity;
the piston is slidably matched with the inner cavity and divides the inner cavity into a first cavity and a second cavity, a first air hole communicated with the first cavity and the outside and a second air hole communicated with the second cavity and the outside are formed in the peripheral wall of the cylinder barrel, the first air hole is positioned at one end of the first cavity, which is away from the piston, the second air hole is positioned at one end of the second cavity, which is away from the piston, and the first cavity and the second cavity are both communicated with the oil supply pipeline; and
the first end wall of the cylinder barrel is provided with a through hole communicated with the first cavity and the outside, the first end of the piston rod is located in the first cavity and connected with the piston, and the second end of the piston rod protrudes out of the cylinder barrel through the through hole and is connected with the barrel valve body.
6. The high pressure medium pressure relief device as set forth in claim 5, wherein said servomotor further comprises:
the first air hole is a threaded hole, and the first threaded plug is in threaded fit with the first air hole; and
the second air hole is a threaded hole, and the second threaded plug is in threaded fit with the second air hole.
7. The high pressure medium pressure relief device as set forth in claim 5, wherein said relay further comprises a valve block, said first and second chambers each being connected to said oil supply line by said valve block, said valve block being adapted to control the flow of oil from said oil supply line to said first and second chambers.
8. The high-pressure medium pressure reducing device according to claim 1, further comprising a pressure reducing pipeline, wherein two ends of the pressure reducing pipeline are respectively connected with the first interface and the second interface, and the first shut-off valve, the oil supply valve and the second shut-off valve are sequentially connected in series with the pressure reducing pipeline.
9. The high-pressure medium pressure reducing device according to claim 1, characterized in that the high-pressure medium pressure reducing device further comprises:
a pressure gas tank; and
the first end of the gas transmission pipeline is communicated with the pressure gas tank, and the second end of the gas transmission pipeline is communicated with the pressure oil tank and is positioned above the liquid level in the pressure oil tank.
10. The high pressure medium pressure reducing device according to claim 9, further comprising an air compressor, wherein the air compressor is connected to the pressure gas tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321172877.XU CN219827306U (en) | 2023-05-15 | 2023-05-15 | High-pressure medium pressure reducing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321172877.XU CN219827306U (en) | 2023-05-15 | 2023-05-15 | High-pressure medium pressure reducing device |
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| Publication Number | Publication Date |
|---|---|
| CN219827306U true CN219827306U (en) | 2023-10-13 |
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| CN202321172877.XU Active CN219827306U (en) | 2023-05-15 | 2023-05-15 | High-pressure medium pressure reducing device |
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| CN (1) | CN219827306U (en) |
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- 2023-05-15 CN CN202321172877.XU patent/CN219827306U/en active Active
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