CN216242488U - Novel bypass pressure relief system of gate valve - Google Patents
Novel bypass pressure relief system of gate valve Download PDFInfo
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- CN216242488U CN216242488U CN202122784449.XU CN202122784449U CN216242488U CN 216242488 U CN216242488 U CN 216242488U CN 202122784449 U CN202122784449 U CN 202122784449U CN 216242488 U CN216242488 U CN 216242488U
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- pressure relief
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- relief system
- gate valve
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Abstract
The utility model relates to a novel bypass pressure relief system of a gate valve, which comprises a valve body, wherein a middle cavity of the valve body is externally connected with a three-way reversing valve, sealing valves are externally connected at the upper and lower streams of the valve body, a pressure gauge is arranged between a main pipe of the three-way reversing valve and the middle cavity of the valve body, and two branch pipes of the pressure gauge are respectively connected with two sealing valves. The novel bypass pressure relief system of the gate valve can realize the pressure relief of the middle cavity of the valve only by simply changing the prior valve; the pressure relief path of the valve middle cavity is selectable, and the double-pipeline switching type design is more reliable in use; the pressure of the cavity in the valve can be monitored in real time, and the pressure relief operation is convenient.
Description
Technical Field
The utility model relates to the field of gates, in particular to a novel bypass pressure relief system of a gate valve.
Background
The gate valve is used as a valve for controlling the on-off of a pipeline, and is widely applied to various fields due to the advantages of small flow resistance, good sealing performance and the like. However, under the working condition of some high-temperature steam, the valve is not provided with a pressure relief device, and the valve cannot be opened again after being closed due to steam overpressure in the middle cavity, so that the use is influenced.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is as follows: in order to overcome the defects of the prior art, the novel bypass pressure relief system of the gate valve is provided.
In order to achieve the technical effects, the utility model adopts the technical scheme that: the utility model provides a novel bypass pressure release system of gate valve, includes the valve body, the lumen of valve body is external to have three-way switching-over valve, and the upper and lower reaches of valve body are all external to have a seal valve, be provided with the manometer between being responsible for of three-way switching-over valve and the valve body lumen, two seal valves are connected respectively to its two branch pipes.
Further, the surface of the valve body is provided with a heat insulation layer.
Further, the thermal insulation layer comprises a polyurethane thermal insulation layer.
Furthermore, the middle cavity of the valve body is connected with a main pipe of the three-way reversing valve through a first pipeline, and the two sealing valves are respectively connected with two branch pipes of the three-way reversing valve through two second pipelines.
Further, the first pipeline and the second pipeline are both made of steel pipes.
Further, the three-way reversing valve and the sealing valve are both stop valves.
Compared with the prior art, the utility model has the beneficial effects that:
1. the pressure relief of the cavity in the valve can be realized only by simply changing the existing valve;
2. the pressure relief path of the valve middle cavity is selectable, and the double-pipeline switching type design is more reliable in use;
3. the pressure of the cavity in the valve can be monitored in real time, and the pressure relief operation is convenient.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and the embodiments, and it is apparent that the described embodiments are some, but not all embodiments of the present invention.
Drawings
FIG. 1 is a schematic structural view of a novel by-pass pressure relief system of a gate valve according to the present invention;
FIG. 2 is a schematic structural view of another perspective of the novel bypass pressure relief system of the gate valve of the present invention;
the reference numbers and corresponding designations in the drawings are: 1. the valve comprises a valve body, 2 parts of a three-way reversing valve, 3 parts of a sealing valve, 4 parts of a pressure gauge, 5 parts of a first pipeline and 6 parts of a second pipeline.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
As shown in fig. 1-2, the present embodiment provides a novel bypass pressure relief system of a gate valve, which includes a valve body 1, a three-way reversing valve 2 is externally connected to a middle cavity of the valve body 1, and sealing valves 3 are externally connected to both the upstream and downstream of the valve body 1; wherein, the three-way reversing valve 2 and the sealing valve 3 are stop valves; a pressure gauge 4 is arranged between the main pipe of the three-way reversing valve 2 and the middle cavity of the valve body 1, and two branch pipes of the pressure gauge are respectively connected with two sealing valves 3; the middle cavity of the valve body 1 is connected with a main pipe of the three-way reversing valve 2 through a first pipeline 5, and the two sealing valves 3 are respectively connected with two branch pipes of the three-way reversing valve 2 through two second pipelines 6.
A three-way reversing valve 2 is additionally arranged in a middle cavity of a valve body 1, sealing valves 3 are additionally arranged on the upstream and the downstream of the valve body 1 respectively, and a first pipeline 5 and a second pipeline 6 are connected to form a bypass pressure relief system. When the valve needs to be opened from a closed state, the sealing valve 3 at the upstream/downstream of the valve body 1 is opened, and the three-way reversing valve 2 switches the corresponding pipeline, so that the pressure of the middle cavity can be released, the pressure of the middle cavity is ensured to be consistent with the pressure at the upstream/downstream of the valve body 1, and the valve can be smoothly opened. In the pressure relief process, the pressure gauge 4 is used for monitoring the pressure of the middle cavity of the valve body 1 in real time, and the sealing valve 3 can be closed to facilitate pressure relief operation when the pressure of the middle cavity of the valve is recovered to be normal.
In order to avoid scalding accidents caused by high-temperature media, a heat insulation layer is arranged on the surface of the valve body 1; preferably, the thermal insulation layer comprises a polyurethane thermal insulation layer which has good thermal insulation performance and low cost.
In order to ensure the structural strength and service life requirements of the pipelines, the first pipeline 5 and the second pipeline 6 are both made of steel pipes.
The present invention is not limited to the above-described embodiments, and various modifications made without inventive step from the above-described concept will fall within the scope of the present invention for those skilled in the art.
Claims (6)
1. The utility model provides a novel bypass pressure release system of gate valve, includes valve body (1), its characterized in that, the lumen of valve body (1) is external to have three-way switching-over valve (2), and the upper and lower reaches of valve body (1) are all external to have seal valve (3), be provided with between the person in charge of three-way switching-over valve (2) and valve body (1) lumen manometer (4), two seal valve (3) are connected respectively to its two branch pipes.
2. The novel gate valve bypass pressure relief system according to claim 1, characterized in that the surface of the valve body (1) is provided with a thermal insulation layer.
3. The novel gate valve bypass relief system of claim 2, wherein said insulation comprises polyurethane insulation.
4. The novel gate valve bypass pressure relief system according to claim 1, characterized in that the middle cavity of the valve body (1) is connected to the main pipe of the three-way directional valve (2) through a first pipeline (5), and the two sealing valves (3) are respectively connected to the two branch pipes of the three-way directional valve (2) through two second pipelines (6).
5. The new gate valve bypass pressure relief system according to claim 4, characterized in that the first (5) and second (6) lines are made of steel pipe.
6. The novel gate valve bypass pressure relief system according to claim 1, characterized in that the three-way directional valve (2) and the sealing valve (3) are both stop valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122784449.XU CN216242488U (en) | 2021-11-15 | 2021-11-15 | Novel bypass pressure relief system of gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122784449.XU CN216242488U (en) | 2021-11-15 | 2021-11-15 | Novel bypass pressure relief system of gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216242488U true CN216242488U (en) | 2022-04-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122784449.XU Active CN216242488U (en) | 2021-11-15 | 2021-11-15 | Novel bypass pressure relief system of gate valve |
Country Status (1)
| Country | Link |
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| CN (1) | CN216242488U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116255467A (en) * | 2023-05-10 | 2023-06-13 | 成都成高阀门有限公司 | Double-cutoff forced sealing valve and control method thereof |
-
2021
- 2021-11-15 CN CN202122784449.XU patent/CN216242488U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116255467A (en) * | 2023-05-10 | 2023-06-13 | 成都成高阀门有限公司 | Double-cutoff forced sealing valve and control method thereof |
| CN116255467B (en) * | 2023-05-10 | 2023-07-21 | 成都成高阀门有限公司 | Double-cutoff forced sealing valve and control method thereof |
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