CN213954516U - Diaphragm type hydraulic control valve for preventing water hammer - Google Patents
Diaphragm type hydraulic control valve for preventing water hammer Download PDFInfo
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- CN213954516U CN213954516U CN202022572076.5U CN202022572076U CN213954516U CN 213954516 U CN213954516 U CN 213954516U CN 202022572076 U CN202022572076 U CN 202022572076U CN 213954516 U CN213954516 U CN 213954516U
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Abstract
The utility model discloses a waterproof hammer diaphragm formula hydraulic control valve. A diaphragm type hydraulic control valve for preventing water hammer comprises a valve body, a valve cover and a diaphragm, wherein a through hole A and a through hole B are respectively arranged on the valve body wall of the valve body, which is a water inlet end and a water outlet end, the left side and the right side of the top surface of the valve cover are respectively provided with a left through hole and a right through hole, and the diaphragm type hydraulic control valve also comprises a water hammer device arranged on the valve body; the water hammer preventing device installed on the valve body comprises a high-pressure pilot valve, a low-pressure pilot valve, a pipeline section A, a pipeline section B, a pipeline section C and a filter. The utility model discloses both solved the superpressure phenomenon of system's pipeline and solved the water hammer problem that the pump that stops caused again, eliminated system's pipeline potential safety hazard, reduced system's pipeline installation cost, improved system's pipeline installation effectiveness.
Description
Technical Field
The utility model belongs to a diaphragm formula hydraulic control valve especially belongs to a waterproof hammer diaphragm formula hydraulic control valve.
Background
The diaphragm type hydraulic control valve in the current market automatically releases pressure when overpressure occurs to a system pipeline, so that the safety of pipeline equipment is protected. However, the existing diaphragm type hydraulic control valve only solves the phenomenon of pipeline overpressure and cannot solve the problem of water hammer caused by pump stop, and a water hammer eliminator needs to be additionally installed to absorb instantaneous pipeline pressure fluctuation caused by pump stop, so that the use and installation cost of the pipeline is increased; in addition, pipeline pressure fluctuation is too fast, and the diaphragm type hydraulic control valve cannot respond timely sometimes, so that potential safety hazards of pipelines are caused; and thirdly, the pressure relief value and the water hammer absorption volume can be realized only by carrying out strict calculation and field debugging, the pipeline installation time is prolonged, and the pipeline installation efficiency is low. How to prepare a water hammer prevention diaphragm type hydraulic control valve can solve the overpressure phenomenon of a system pipeline and solve a water hammer caused by pump stop, eliminates the potential safety hazard of the system pipeline, reduces the use and installation cost of the system pipeline, and improves the installation efficiency of the system pipeline.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: a diaphragm type hydraulic control valve for preventing water hammer is provided. The diaphragm type hydraulic control valve for preventing the water hammer can solve the overpressure phenomenon of a system pipeline and the water hammer caused by stopping a pump, eliminate the potential safety hazard of the system pipeline, reduce the installation cost of the system pipeline and improve the installation efficiency of the system pipeline.
The utility model provides a technical scheme of above-mentioned technical problem is: the utility model provides a waterproof hammer diaphragm formula hydraulic control valve, includes valve body, valve gap, diaphragm, this valve body has into water end, play water end, characterized by: the valve body is characterized in that a through hole A and a through hole B are respectively arranged on the valve body wall of the water inlet end and the water outlet end of the valve body, a left through hole and a right through hole are respectively arranged on the left side and the right side of the top surface of the valve cover, and the water hammer preventing device is arranged on the valve body;
the water hammer preventing device arranged on the valve body comprises a high-pressure pilot valve, a low-pressure pilot valve, a pipeline section A, a pipeline section B and a pipeline section C, wherein the starting end of the pipeline section A is fixedly connected with a through hole A arranged on the wall of the valve body at the water inlet end in a penetrating and sealing manner, the tail end of the pipeline section A is connected with the low-pressure pilot valve, the starting end of the pipeline section A is fixedly connected with the through hole A arranged on the wall of the valve body at the water inlet end in a penetrating and sealing manner, and the pipeline section A, the tail end of which is connected with the low-pressure pilot valve, is also sequentially provided with a ball valve A, a filter and a high-pressure pilot valve; the starting end of the pipeline section B is fixedly connected with a left through hole arranged on the top surface of the valve cover in a penetrating and sealing way, the tail end of the pipeline section B is fixedly connected with a through hole B arranged on the wall of the valve body at the water outlet end of the valve body in a penetrating and sealing way, the starting end of the pipeline section C is fixedly connected with a right through hole arranged on the top surface of the valve cover in a penetrating and sealing way, the tail end of the pipeline section C is fixedly connected with a through hole B arranged on the wall of the valve body at the water outlet end of the valve body in a penetrating and sealing way, a high-pressure pilot valve is sequentially connected on the pipeline section B, a ball valve B is installed on the pipeline section B, the starting end of the pipeline section C is fixedly connected with a through hole B arranged on the wall of the valve body at the water outlet end of the valve body in a penetrating and sealing way, the C pipeline section with the starting end fixedly connected with the right through hole arranged on the top surface of the valve cover in a penetrating and sealing way and the tail end fixedly connected with the through hole B arranged on the valve body wall of the water outlet end of the valve body in a penetrating and sealing way is also sequentially connected with a low-pressure pilot valve and provided with a ball valve C; the filter is a built-in self-cleaning filter;
the waterproof hammer diaphragm type hydraulic control valve is one of a Y-shaped flange waterproof hammer diaphragm type hydraulic control valve, a Y-shaped groove waterproof hammer diaphragm type hydraulic control valve, a T-shaped flange waterproof hammer diaphragm type hydraulic control valve and a T-shaped groove waterproof hammer diaphragm type hydraulic control valve.
The low-pressure pilot valve and the installation thereof at the tail end of the pipeline A, the connection of the pipeline C section on the low-pressure pilot valve, the high-pressure pilot valve and the installation thereof on the pipeline A section, and the connection of the pipeline B section on the high-pressure pilot valve are the prior art; built-in self-cleaning filters are prior art.
The utility model discloses a use and principle are: in the use process of the utility model, the A ball valve arranged on the A pipeline section, the B ball valve arranged on the B pipeline section and the C ball valve arranged on the C pipeline section are in a normally open state; the utility model is a waterproof hammer diaphragm type hydraulic control valve driven by the medium of the pipeline, and the opening and closing pressure is lower than 0.05 Mpa; the high pressure relief value set by the high pressure pilot valve is 0.15-0.2 MPa higher than the normal set pressure of a system pipeline: the low pressure relief value set by the low pressure pilot valve is 0.15-0.2 MPa lower than the normal set pressure of a system pipeline;
the utility model discloses waterproof hammer diaphragm formula hydraulic control valve passes through high pressure pilot valve and low pressure pilot valve control, because the pump stop can cause the pipeline pressure fluctuation in the twinkling of an eye, pipeline pressure can reduce before the water hammer arrives after the pump stop, when pipeline pressure is less than the pressure release value that the low pressure pilot valve set for, low pressure pilot valve control the utility model discloses waterproof hammer diaphragm formula hydraulic control valve opens the pressure release, and keeps when the interior sharp high pressure of pipeline reaches before the utility model discloses waterproof hammer diaphragm formula hydraulic control valve is the open mode; when the water hammer arrives, the main valve still keeps an open state when the pipeline pressure is increased to be higher than the pressure relief value set by the high-pressure pilot valve; when the pipeline pressure value is less than the pressure release value that the high pressure pilot valve set for and is higher than the pressure release value that the low pressure pilot valve set for the utility model discloses waterproof hammer diaphragm formula hydraulic control valve is closed, and the pipeline pressure fluctuation that produces when dealing with equipment trouble and stopping the pump eliminates the water hammer, has realized system's pipeline safe operation.
The utility model has the advantages that: because the utility model is provided with the valve body, the valve cover and the diaphragm, the valve body wall of the valve body, which is the water inlet end and the water outlet end, is respectively provided with the through hole A and the through hole B, the left and the right sides on the top surface of the valve cover are respectively provided with the left through hole and the right through hole, and the water hammer preventing device arranged on the valve body is also arranged; the water hammer preventing device installed on the valve body comprises a high-pressure pilot valve, a low-pressure pilot valve, a pipeline section A, a pipeline section B, a pipeline section C and a filter. The utility model discloses both solve the overpressure phenomenon of system's pipeline and solved the water hammer problem that the pump stopped to cause again, eliminated system's pipeline potential safety hazard, reduced system's pipeline installation cost, improved system's pipeline installation effectiveness.
And because the starting end is fixedly connected with the A through hole arranged on the valve body wall of the water inlet end of the valve body in a sealing way, and the part of the pipeline section A with the tail end connected with the low-pressure pilot valve is also provided with a filter which is a built-in self-cleaning filter. A steady operation for filtering the impurity in the pipeline, prevented that high pressure pilot valve, low pressure pilot valve blocking phenomenon from taking place, realized the utility model discloses a steady operation.
Drawings
Fig. 1 is a schematic structural diagram of a Y-shaped flange waterproof hammer diaphragm type hydraulic control valve according to embodiment 1 of the present invention;
fig. 2 is a schematic structural view of a Y-shaped groove waterproof hammer diaphragm type hydraulic control valve according to embodiment 2 of the present invention;
fig. 3 is a schematic structural diagram of a T-shaped flange waterproof hammer diaphragm type hydraulic control valve according to embodiment 3 of the present invention;
fig. 4 is a schematic structural view of a T-shaped groove waterproof hammer diaphragm type hydraulic control valve according to embodiment 4 of the present invention;
in the drawings: 1. the valve comprises a valve body, a valve cover 2, a diaphragm 3, a water inlet end 4, a water outlet end 5, a through hole 6.A, a through hole 7.B, a through hole 8, a left through hole 9, a right through hole, a high-pressure pilot valve 10, a low-pressure pilot valve 11, a pipeline section 12.A, a pipeline section 13.B, a pipeline section 14.C, a ball valve 15.A, a filter 16, a ball valve 17.B and a ball valve 18. C.
Detailed Description
The present invention will be described in further detail with reference to the following examples.
Example 1
As shown in fig. 1, a waterproof hammer diaphragm type hydraulic control valve is a Y-type flange waterproof hammer diaphragm type hydraulic control valve, which includes a valve body 1, a valve cover 2, and a diaphragm 3, wherein the valve body 1 has a water inlet end 4 and a water outlet end 5, and is characterized in that: the valve body 1 is provided with a through hole A6 and a through hole B7 on the valve body wall of the water inlet end and the water outlet end respectively, and the left side and the right side on the top surface of the valve cover 2 are provided with a left through hole 8 and a right through hole 9 respectively (the left side of an observer is the left side of the top surface of the valve cover, and the right side of the observer is the right side of the top surface of the valve cover when facing the utility model), and the water hammer preventing device is arranged on the valve body;
the water hammer preventing device arranged on the valve body comprises a high-pressure pilot valve 10, a low-pressure pilot valve 11, an A pipeline section 12, a B pipeline section 13 and a C pipeline section 14, wherein the starting end of the A pipeline section 12 is communicated, sealed and fixedly connected with an A through hole 6 arranged on the valve body wall of the valve body 1 serving as a water inlet end, the tail end of the A pipeline section is connected with the low-pressure pilot valve 11, the starting end of the A pipeline section is communicated, sealed and fixedly connected with the A through hole 6 arranged on the valve body wall of the valve body 1 serving as the water inlet end, and an A ball valve 15, a filter 16 and the high-pressure pilot valve 10 are sequentially arranged on the part of the A pipeline section 12, the tail end of which is connected with the low-pressure pilot valve 11; the starting end of the B pipeline section 13 is communicated, sealed and fixedly connected with a left through hole 8 arranged on the top surface of the valve cover 2, the tail end of the B pipeline section 13 is communicated, sealed and fixedly connected with a B through hole 7 arranged on the valve body wall of the valve body 1 serving as the water outlet end, the starting end is communicated, sealed and fixedly connected with the left through hole 8 arranged on the top surface of the valve cover 2, the tail end of the C pipeline section 14 is communicated, sealed and fixedly connected with a right through hole 9 arranged on the top surface of the valve cover 2, the tail end of the C pipeline section 14 is communicated, sealed and fixedly connected with the B through hole 7 arranged on the valve body wall of the valve body 1 serving as the water outlet end, the starting end is communicated, sealed and fixedly connected with a right through hole 9 arranged on the top surface of the valve cover 2, and the tail end of the C pipeline section 14 communicated, sealed and fixedly connected with the B through hole 7 arranged on the valve body wall of the valve body 1 serving as the water outlet end is sequentially connected with a low-pressure pilot valve 11, A C ball valve 18 is installed; the filter 16 is an in-line self-cleaning filter.
The utility model discloses in the use, the C ball valve 18 of installing on the B ball valve 17 of installing on A ball valve 15, the B pipeline section 13 of installing on the A pipeline section 12, the C pipeline section 14 is normally open state.
Example 2
As shown in fig. 2, a waterproof hammer diaphragm type hydraulic control valve is a Y-shaped groove waterproof hammer diaphragm type hydraulic control valve, which includes a valve body 1, a valve cover 2, and a diaphragm 3, wherein the valve body 1 has a water inlet end 4 and a water outlet end 5, and is characterized in that: the valve body 1 is provided with a through hole A6 and a through hole B7 on the valve body wall of the water inlet end and the water outlet end respectively, and the left side and the right side on the top surface of the valve cover 2 are provided with a left through hole 8 and a right through hole 9 respectively (the left side of an observer is the left side of the top surface of the valve cover, and the right side of the observer is the right side of the top surface of the valve cover when facing the utility model), and the water hammer preventing device is arranged on the valve body;
the water hammer preventing device arranged on the valve body comprises a high-pressure pilot valve 10, a low-pressure pilot valve 11, an A pipeline section 12, a B pipeline section 13 and a C pipeline section 14, wherein the starting end of the A pipeline section 12 is communicated, sealed and fixedly connected with an A through hole 6 arranged on the valve body wall of the valve body 1 serving as a water inlet end, the tail end of the A pipeline section is connected with the low-pressure pilot valve 11, the starting end of the A pipeline section is communicated, sealed and fixedly connected with the A through hole 6 arranged on the valve body wall of the valve body 1 serving as the water inlet end, and an A ball valve 15, a filter 16 and the high-pressure pilot valve 10 are sequentially arranged on the part of the A pipeline section 12, the tail end of which is connected with the low-pressure pilot valve 11; the starting end of the B pipeline section 13 is communicated, sealed and fixedly connected with a left through hole 8 arranged on the top surface of the valve cover 2, the tail end of the B pipeline section 13 is communicated, sealed and fixedly connected with a B through hole 7 arranged on the valve body wall of the valve body 1 serving as the water outlet end, the starting end is communicated, sealed and fixedly connected with the left through hole 8 arranged on the top surface of the valve cover 2, the tail end of the C pipeline section 14 is communicated, sealed and fixedly connected with a right through hole 9 arranged on the top surface of the valve cover 2, the tail end of the C pipeline section 14 is communicated, sealed and fixedly connected with the B through hole 7 arranged on the valve body wall of the valve body 1 serving as the water outlet end, the starting end is communicated, sealed and fixedly connected with a right through hole 9 arranged on the top surface of the valve cover 2, and the tail end of the C pipeline section 14 communicated, sealed and fixedly connected with the B through hole 7 arranged on the valve body wall of the valve body 1 serving as the water outlet end, A C ball valve 18 is installed; the filter 16 is an in-line self-cleaning filter.
The utility model discloses in the use, the C ball valve 18 of installing on the B ball valve 17 of installing on A ball valve 15, the B pipeline section 13 of installing on the A pipeline section 12, the C pipeline section 14 is normally open state.
Example 3
As shown in fig. 3, a waterproof hammer diaphragm type hydraulic control valve is a T-shaped flange waterproof hammer diaphragm type hydraulic control valve, and the T-shaped flange waterproof hammer diaphragm type hydraulic control valve includes a valve body 1, a valve cover 2, and a diaphragm 3, where the valve body 1 has a water inlet end 4 and a water outlet end 5, and is characterized in that: the valve body 1 is provided with a through hole A6 and a through hole B7 on the valve body wall of the water inlet end and the water outlet end respectively, and the left side and the right side on the top surface of the valve cover 2 are provided with a left through hole 8 and a right through hole 9 respectively (the left side of an observer is the left side of the top surface of the valve cover, and the right side of the observer is the right side of the top surface of the valve cover when facing the utility model), and the water hammer preventing device is arranged on the valve body;
the water hammer preventing device arranged on the valve body comprises a high-pressure pilot valve 10, a low-pressure pilot valve 11, an A pipeline section 12, a B pipeline section 13 and a C pipeline section 14, wherein the starting end of the A pipeline section 12 is communicated, sealed and fixedly connected with an A through hole 6 arranged on the valve body wall of the valve body 1 serving as a water inlet end, the tail end of the A pipeline section is connected with the low-pressure pilot valve 11, the starting end of the A pipeline section is communicated, sealed and fixedly connected with the A through hole 6 arranged on the valve body wall of the valve body 1 serving as the water inlet end, and an A ball valve 15, a filter 16 and the high-pressure pilot valve 10 are sequentially arranged on the part of the A pipeline section 12, the tail end of which is connected with the low-pressure pilot valve 11; the starting end of the B pipeline section 13 is communicated, sealed and fixedly connected with a left through hole 8 arranged on the top surface of the valve cover 2, the tail end of the B pipeline section 13 is communicated, sealed and fixedly connected with a B through hole 7 arranged on the valve body wall of the valve body 1 serving as the water outlet end, the starting end is communicated, sealed and fixedly connected with the left through hole 8 arranged on the top surface of the valve cover 2, the tail end of the C pipeline section 14 is communicated, sealed and fixedly connected with a right through hole 9 arranged on the top surface of the valve cover 2, the tail end of the C pipeline section 14 is communicated, sealed and fixedly connected with the B through hole 7 arranged on the valve body wall of the valve body 1 serving as the water outlet end, the starting end is communicated, sealed and fixedly connected with a right through hole 9 arranged on the top surface of the valve cover 2, and the tail end of the C pipeline section 14 communicated, sealed and fixedly connected with the B through hole 7 arranged on the valve body wall of the valve body 1 serving as the water outlet end is sequentially connected with a low-pressure pilot valve 11, A C ball valve 18 is installed; the filter 16 is an in-line self-cleaning filter.
The utility model discloses in the use, the C ball valve 18 of installing on the B ball valve 17 of installing on A ball valve 15, the B pipeline section 13 of installing on the A pipeline section 12, the C pipeline section 14 is normally open state.
Example 4
As shown in fig. 4, a waterproof hammer diaphragm type hydraulic control valve is a T-shaped groove waterproof hammer diaphragm type hydraulic control valve, and the T-shaped groove waterproof hammer diaphragm type hydraulic control valve includes a valve body 1, a valve cover 2, and a diaphragm 3, where the valve body 1 has a water inlet end 4 and a water outlet end 5, and is characterized in that: the valve body 1 is provided with a through hole A6 and a through hole B7 on the valve body wall of the water inlet end and the water outlet end respectively, and the left side and the right side on the top surface of the valve cover 2 are provided with a left through hole 8 and a right through hole 9 respectively (the left side of an observer is the left side of the top surface of the valve cover, and the right side of the observer is the right side of the top surface of the valve cover when facing the utility model), and the water hammer preventing device is arranged on the valve body;
the water hammer preventing device arranged on the valve body comprises a high-pressure pilot valve 10, a low-pressure pilot valve 11, an A pipeline section 12, a B pipeline section 13 and a C pipeline section 14, wherein the starting end of the A pipeline section 12 is communicated, sealed and fixedly connected with an A through hole 6 arranged on the valve body wall of the valve body 1 serving as a water inlet end, the tail end of the A pipeline section is connected with the low-pressure pilot valve 11, the starting end of the A pipeline section is communicated, sealed and fixedly connected with the A through hole 6 arranged on the valve body wall of the valve body 1 serving as the water inlet end, and an A ball valve 15, a filter 16 and the high-pressure pilot valve 10 are sequentially arranged on the part of the A pipeline section 12, the tail end of which is connected with the low-pressure pilot valve 11; the starting end of the B pipeline section 13 is communicated, sealed and fixedly connected with a left through hole 8 arranged on the top surface of the valve cover 2, the tail end of the B pipeline section 13 is communicated, sealed and fixedly connected with a B through hole 7 arranged on the valve body wall of the valve body 1 serving as the water outlet end, the starting end is communicated, sealed and fixedly connected with the left through hole 8 arranged on the top surface of the valve cover 2, the tail end of the C pipeline section 14 is communicated, sealed and fixedly connected with a right through hole 9 arranged on the top surface of the valve cover 2, the tail end of the C pipeline section 14 is communicated, sealed and fixedly connected with the B through hole 7 arranged on the valve body wall of the valve body 1 serving as the water outlet end, the starting end is communicated, sealed and fixedly connected with a right through hole 9 arranged on the top surface of the valve cover 2, and the tail end of the C pipeline section 14 communicated, sealed and fixedly connected with the B through hole 7 arranged on the valve body wall of the valve body 1 serving as the water outlet end is sequentially connected with a low-pressure pilot valve 11, A C ball valve 18 is installed; the filter 16 is an in-line self-cleaning filter.
The utility model discloses in the use, the C ball valve 18 of installing on the B ball valve 17 of installing on A ball valve 15, the B pipeline section 13 of installing on the A pipeline section 12, the C pipeline section 14 is normally open state.
From the above description, those skilled in the art can make various changes and modifications without departing from the technical spirit of the present invention, and the present invention is within the protection scope of the present invention. The present invention is not to be considered as the best thing, and belongs to the common general knowledge of the technicians in the field.
Claims (1)
1. The utility model provides a waterproof hammer diaphragm formula hydraulic control valve, waterproof hammer diaphragm formula hydraulic control valve includes valve body, valve gap, diaphragm, and this valve body has into water end, play water end, characterized by: the valve body is characterized in that a through hole A and a through hole B are respectively arranged on the valve body wall of the water inlet end and the water outlet end of the valve body, a left through hole and a right through hole are respectively arranged on the left side and the right side of the top surface of the valve cover, and the water hammer preventing device is arranged on the valve body;
the water hammer preventing device arranged on the valve body comprises a high-pressure pilot valve, a low-pressure pilot valve, a pipeline section A, a pipeline section B and a pipeline section C, wherein the starting end of the pipeline section A is fixedly connected with a through hole A arranged on the wall of the valve body at the water inlet end in a penetrating and sealing manner, the tail end of the pipeline section A is connected with the low-pressure pilot valve, the starting end of the pipeline section A is fixedly connected with the through hole A arranged on the wall of the valve body at the water inlet end in a penetrating and sealing manner, and the pipeline section A, the tail end of which is connected with the low-pressure pilot valve, is also sequentially provided with a ball valve A, a filter and a high-pressure pilot valve; the starting end of the pipeline section B is fixedly connected with a left through hole arranged on the top surface of the valve cover in a penetrating and sealing way, the tail end of the pipeline section B is fixedly connected with a through hole B arranged on the wall of the valve body at the water outlet end of the valve body in a penetrating and sealing way, the starting end of the pipeline section C is fixedly connected with a right through hole arranged on the top surface of the valve cover in a penetrating and sealing way, the tail end of the pipeline section C is fixedly connected with a through hole B arranged on the wall of the valve body at the water outlet end of the valve body in a penetrating and sealing way, a high-pressure pilot valve is sequentially connected on the pipeline section B, a ball valve B is installed on the pipeline section B, the, the C pipeline section with the starting end fixedly connected with the right through hole arranged on the top surface of the valve cover in a penetrating and sealing way and the tail end fixedly connected with the through hole B arranged on the valve body wall of the water outlet end of the valve body in a penetrating and sealing way is also sequentially connected with a low-pressure pilot valve and provided with a ball valve C; the filter is a built-in self-cleaning filter;
the waterproof hammer diaphragm type hydraulic control valve is one of a Y-shaped flange waterproof hammer diaphragm type hydraulic control valve, a Y-shaped groove waterproof hammer diaphragm type hydraulic control valve, a T-shaped flange waterproof hammer diaphragm type hydraulic control valve and a T-shaped groove waterproof hammer diaphragm type hydraulic control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022572076.5U CN213954516U (en) | 2020-11-09 | 2020-11-09 | Diaphragm type hydraulic control valve for preventing water hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022572076.5U CN213954516U (en) | 2020-11-09 | 2020-11-09 | Diaphragm type hydraulic control valve for preventing water hammer |
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| Publication Number | Publication Date |
|---|---|
| CN213954516U true CN213954516U (en) | 2021-08-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022572076.5U Active CN213954516U (en) | 2020-11-09 | 2020-11-09 | Diaphragm type hydraulic control valve for preventing water hammer |
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| CN (1) | CN213954516U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113731172A (en) * | 2021-08-17 | 2021-12-03 | 沈阳芯源微电子设备股份有限公司 | High pressure filter |
-
2020
- 2020-11-09 CN CN202022572076.5U patent/CN213954516U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113731172A (en) * | 2021-08-17 | 2021-12-03 | 沈阳芯源微电子设备股份有限公司 | High pressure filter |
| CN113731172B (en) * | 2021-08-17 | 2024-01-30 | 沈阳芯源微电子设备股份有限公司 | High-pressure filter |
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