CN213540901U - Novel mechanical reset hydraulic control valve - Google Patents
Novel mechanical reset hydraulic control valve Download PDFInfo
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- CN213540901U CN213540901U CN202022600917.9U CN202022600917U CN213540901U CN 213540901 U CN213540901 U CN 213540901U CN 202022600917 U CN202022600917 U CN 202022600917U CN 213540901 U CN213540901 U CN 213540901U
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- hydraulic control
- reversing valve
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Abstract
The utility model provides a novel mechanical reset hydraulic control valve, including a manual reversing valve, a hydraulic control reversing valve and a reset valve, wherein, both ends of a valve body of the manual reversing valve are respectively provided with an inflow port and an outflow port, the inflow port is communicated with a safety oil pipeline of a hydraulic system, the outflow port is communicated with an oil return pipeline, both ends of a valve core of the manual reversing valve are respectively provided with a through end and a cut end, both ends of a valve body of the hydraulic control reversing valve are respectively provided with an oil inlet port and an oil outlet port, the oil inlet port is communicated with the safety oil pipeline of the hydraulic system, both ends of the valve core of the hydraulic control reversing valve are respectively provided with a through end body and a cut end body, the safety oil pipeline is connected into the valve body of the hydraulic control reversing valve and corresponds to the cut end body position, the oil return pipeline is connected into the valve body of the hydraulic control reversing valve and corresponds to the through end body position, one end of the reset valve is connected with an oil return pipeline of the hydraulic system, and the other end of the reset valve is connected with an oil outlet port of the hydraulic control reversing valve.
Description
Technical Field
The utility model relates to a liquid accuse equipment especially relates to a novel mechanical reset liquid accuse valve.
Background
The method is characterized in that on-site manual brake opening or hanging (safety oil releasing or building) is required to be completed when all valves in a steam turbine control system are closed or opened, on-site manual brake opening or hanging is realized by only installing one manual change valve on a safety oil pipeline in the early stage, when the manual change valve is in a hanging state, other safety devices can be remotely controlled to hang a brake through electricity so as to build the safety oil, a secondary safety confirmation function is lacked on the site, and a site manual secondary confirmation reset function is required to be added.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a novel mechanical reset liquid accuse valve to promote the security.
The utility model discloses a solve the technical scheme that its technical problem adopted and be:
a novel mechanical reset hydraulic control valve comprises:
the manual reversing valve is arranged in a hydraulic system, a flow inlet port and a flow outlet port are respectively formed in two ends of a valve body of the manual reversing valve, the flow inlet port is communicated with a safety oil pipeline of the hydraulic system, the flow outlet port is communicated with an oil return pipeline, two ends of a valve core of the manual reversing valve are respectively provided with a through end and a cut-off end, when the through end corresponds to the positions of the flow inlet port and the flow outlet port, a channel between the flow inlet port and the flow outlet port is through, and when the cut-off end corresponds to the positions of the flow inlet port and the flow outlet port, the channel between the flow inlet port and the flow outlet port is cut off;
the hydraulic control reversing valve is arranged in a hydraulic system, an oil inlet port and an oil outlet port are respectively formed in two ends of a valve body of the hydraulic control reversing valve, the oil inlet port is communicated with a safety oil pipeline of the hydraulic system, a through end body and a blocking end body are respectively arranged at two ends of a valve core of the hydraulic control reversing valve, the safety oil pipeline is connected into the valve body of the hydraulic control reversing valve and corresponds to the blocking end body in position, an oil return pipeline is connected into the valve body of the hydraulic control reversing valve and corresponds to the through end body in position, when the through end body corresponds to the oil inlet port and the oil outlet port in position, a channel between the oil inlet port and the oil outlet port is communicated, when the blocking end body corresponds to the oil inlet port and the oil outlet port in position, the channel between the oil inlet port and the oil outlet port is blocked, and the safety oil pipeline is;
and one end of the reset valve is connected with an oil return pipeline of the hydraulic system, and the other end of the reset valve is connected with an oil outlet port of the hydraulic control reversing valve.
The manual reversing valve is provided with an operating handle, the operating handle is connected with a valve core of the manual reversing valve, and the valve core of the manual reversing valve is driven to move through the operating handle.
The manual reversing valve, the hydraulic control reversing valve and the reset valve are respectively arranged on the valve block.
The hydraulic control valve is respectively connected with a system safety oil pipe and an oil return pipe through two pipelines, so that the safety oil pressure of the system can be established only after a reset valve is operated on the spot after the system trips every time, namely, the system is not only unloaded or uploaded through a manual reversing valve when switching on or switching off, but also needs to be secondarily confirmed through the reset valve, and the electric misoperation in the system is ensured.
The utility model has the advantages that:
in order to avoid that the gate is hung by mistake by electricity in a remote place under the condition of not carrying out safety confirmation, a hydraulic control spring reset reversing valve is designed on the original basis, even if the safety oil cannot be established after the gate is hung by electricity in the remote place, the valve cannot be normally opened and closed, and after secondary safety confirmation needs to be carried out on the spot, the safety oil can be established after the hydraulic control spring reset valve is reset by manually closing a reset stop valve.
Drawings
Fig. 1 is a working schematic diagram of a mechanical reset hydraulic control valve provided by the utility model;
FIG. 2 is a perspective view of the pilot operated valve;
FIG. 3 is a front view of the pilot operated valve;
fig. 4 is a plan view of the pilot operated valve.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention will be further described with reference to the drawings and the specific embodiments.
As shown in fig. 1 to 4, the novel mechanical reset hydraulic control valve provided by the present invention comprises a manual directional control valve 100, a hydraulic directional control valve 200 and a reset valve 300, wherein the manual directional control valve is installed in a hydraulic system, two ends of a valve body of the manual directional control valve are respectively provided with an inlet port and an outlet port, the inlet port is communicated with a safety oil pipeline of the hydraulic system, the outlet port is communicated with an oil return pipeline, two ends of a valve core of the manual directional control valve are respectively provided with a through end and a cut end, when the through end corresponds to the inlet port and the outlet port, a passage between the inlet port and the outlet port is through, when the cut end corresponds to the inlet port and the outlet port, the passage between the inlet port and the outlet port is cut off, the hydraulic directional control valve is installed in the hydraulic system, two ends of the valve body of the hydraulic directional control valve are respectively provided with the inlet port and the outlet port, the inlet port is communicated with the safety oil pipeline, the two ends of a valve core of the hydraulic control reversing valve are respectively provided with a through end body and a cut-off end body, a safety oil pipeline is connected into a valve body of the hydraulic control reversing valve and corresponds to the position of the cut-off end body, an oil return pipeline is connected into the valve body of the hydraulic control reversing valve and corresponds to the position of the through end body, when the through end body corresponds to the positions of an oil inlet port and an oil outlet port, a channel between the oil inlet port and the oil outlet port is communicated, when the cut-off end body corresponds to the positions of the oil inlet port and the oil outlet port, the channel between the oil inlet port and the oil outlet port is cut off, the safety oil pipeline is connected with the oil inlet port of the hydraulic control reversing valve, one end of a reset valve is connected with an oil return pipeline of. The manual reversing valve is provided with an operating handle 110, the operating handle is connected with a valve core of the manual reversing valve, and the valve core of the manual reversing valve is driven to move by the operating handle. The manual directional control valve, the hydraulic directional control valve and the reset valve are respectively installed on the valve block 400. The hydraulic control valve is respectively connected with a system safety oil pipe and an oil return pipe through two pipelines, so that the safety oil pressure of the system can be established only after a reset valve is operated on the spot after the system trips every time, namely, the system is not only unloaded or uploaded through a manual reversing valve when switching on or switching off, but also needs to be secondarily confirmed through the reset valve, and the electric misoperation in the system is ensured. In order to avoid that the gate is hung by mistake by electricity in a remote place under the condition of not carrying out safety confirmation, a hydraulic control spring reset reversing valve is designed on the original basis, even if the safety oil cannot be established after the gate is hung by electricity in the remote place, the valve cannot be normally opened and closed, and after secondary safety confirmation needs to be carried out on the spot, the safety oil can be established after the hydraulic control spring reset valve is reset by manually closing a reset stop valve.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to let the technical personnel in the field understand the contents of the present invention and implement the present invention, and the protection scope of the present invention can not be limited thereby, and all equivalent changes or modifications made according to the spirit of the present invention should be covered in the protection scope of the present invention.
Claims (3)
1. The utility model provides a novel mechanical reset liquid accuse valve which characterized in that includes:
the manual reversing valve is arranged in a hydraulic system, a flow inlet port and a flow outlet port are respectively formed in two ends of a valve body of the manual reversing valve, the flow inlet port is communicated with a safety oil pipeline of the hydraulic system, the flow outlet port is communicated with an oil return pipeline, two ends of a valve core of the manual reversing valve are respectively provided with a through end and a cut-off end, when the through end corresponds to the positions of the flow inlet port and the flow outlet port, a channel between the flow inlet port and the flow outlet port is through, and when the cut-off end corresponds to the positions of the flow inlet port and the flow outlet port, the channel between the flow inlet port and the flow outlet port is cut off;
the hydraulic control reversing valve is arranged in a hydraulic system, an oil inlet port and an oil outlet port are respectively formed in two ends of a valve body of the hydraulic control reversing valve, the oil inlet port is communicated with a safety oil pipeline of the hydraulic system, a through end body and a blocking end body are respectively arranged at two ends of a valve core of the hydraulic control reversing valve, the safety oil pipeline is connected into the valve body of the hydraulic control reversing valve and corresponds to the blocking end body in position, an oil return pipeline is connected into the valve body of the hydraulic control reversing valve and corresponds to the through end body in position, when the through end body corresponds to the oil inlet port and the oil outlet port in position, a channel between the oil inlet port and the oil outlet port is communicated, when the blocking end body corresponds to the oil inlet port and the oil outlet port in position, the channel between the oil inlet port and the oil outlet port is blocked, and the safety oil pipeline is;
and one end of the reset valve is connected with an oil return pipeline of the hydraulic system, and the other end of the reset valve is connected with an oil outlet port of the hydraulic control reversing valve.
2. The novel mechanical reset hydraulic control valve as claimed in claim 1, wherein:
the manual reversing valve is provided with an operating handle, the operating handle is connected with a valve core of the manual reversing valve, and the valve core of the manual reversing valve is driven to move through the operating handle.
3. The novel mechanical reset hydraulic control valve as claimed in claim 1, wherein: the manual reversing valve, the hydraulic control reversing valve and the reset valve are respectively arranged on the valve block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022600917.9U CN213540901U (en) | 2020-11-11 | 2020-11-11 | Novel mechanical reset hydraulic control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022600917.9U CN213540901U (en) | 2020-11-11 | 2020-11-11 | Novel mechanical reset hydraulic control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213540901U true CN213540901U (en) | 2021-06-25 |
Family
ID=76481492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022600917.9U Active CN213540901U (en) | 2020-11-11 | 2020-11-11 | Novel mechanical reset hydraulic control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213540901U (en) |
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2020
- 2020-11-11 CN CN202022600917.9U patent/CN213540901U/en active Active
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