CN212960864U - Novel vacuum breaking valve - Google Patents
Novel vacuum breaking valve Download PDFInfo
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- CN212960864U CN212960864U CN202021695174.1U CN202021695174U CN212960864U CN 212960864 U CN212960864 U CN 212960864U CN 202021695174 U CN202021695174 U CN 202021695174U CN 212960864 U CN212960864 U CN 212960864U
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Abstract
The application discloses a novel vacuum breaking valve which comprises a valve body, a valve cover, a sealing ring and a valve core; the valve body is arranged on the air distributing cylinder, and an upper cavity and a first channel which are distributed from top to bottom and are communicated with each other are arranged in the valve body; the first channel is communicated with the interior of the branch cylinder; the valve cover is sleeved at the top of the valve body, and the top surface of the valve cover is provided with a through second channel; the valve core comprises a chassis and a guide pipe; one end of the guide pipe is vertically connected with the chassis, and the other end of the guide pipe movably extends out of the second channel to be in sliding fit with the second channel and is provided with a through hole for communicating the outside with the upper cavity; the chassis is arranged in the upper cavity in a sliding manner and is provided with a through hole for communicating the upper cavity with the first channel; the sealing ring surrounds and sets up in the stand pipe bottom for sealed second passageway. This application is through setting up the sealing ring and with the stand pipe and the second passageway sliding connection of case, the sealing ring up seals the second passageway when receiving steam impulsive force. After the steam supply is stopped, the valve core falls back to the first channel and keeps a communication state, so that the condensed water in the cylinder can be smoothly discharged.
Description
Technical Field
The application relates to the field of pressure regulating valves, in particular to a novel vacuum breaking valve.
Background
After the steam cylinder is stopped supplying steam, the high-temperature high-pressure steam left in the steam cylinder is liquefied into condensed water; in order to improve the steam conveying dryness, condensed water needs to be discharged. After the high-temperature high-pressure steam is liquefied, the volume of gas in the cylinder is reduced to form vacuum negative pressure; the condensed water is difficult to be discharged under the action of negative pressure, which is not beneficial to improving the dryness of the steam. Therefore, it is necessary to take measures to solve the problem.
SUMMERY OF THE UTILITY MODEL
In view of the above, an object of the present invention is to provide a novel vacuum breaker capable of sealing steam in a branch cylinder and breaking vacuum in the branch cylinder.
In order to achieve the technical purpose, the application provides a novel vacuum breaking valve which comprises a valve body, a valve cover, a sealing ring and a valve core;
the valve body is arranged on the air distributing cylinder, and an upper cavity and a first channel which are distributed from top to bottom and are communicated with each other are arranged in the valve body;
the first channel is communicated with the interior of the branch cylinder;
the valve cover is sleeved at the top of the valve body, and a second channel penetrating through the top surface of the valve cover is arranged on the top surface of the valve cover;
the valve core comprises a chassis and a guide pipe;
one end of the guide pipe is vertically connected with the chassis, the other end of the guide pipe movably extends out of the second channel to be in sliding fit with the second channel, and a through hole for communicating the outside with the upper cavity is formed;
the chassis is arranged in the upper cavity in a sliding manner and is provided with at least one through hole which is communicated with the upper cavity and the first channel under the condition that the chassis is not subjected to steam impact force;
the sealing ring is arranged around a vertical connecting part of the guide pipe and the chassis and used for sealing the second channel under the steam impact force of the valve core in a steam supply state of the steam distributing cylinder.
Further, the second channel is arranged in the center of the valve cover and is a cylindrical channel.
Furthermore, the guide pipe is a hollow cylindrical pipe, and holes are symmetrically formed in the pipe wall above the sealing ring and communicated with the inner hollow cavity and the upper cavity.
Furthermore, the upper cavity and the base plate are both cylindrical, and the diameter of the bottom surface of the upper cavity cylinder is larger than that of the bottom surface of the base plate cylinder.
Further, the first channel is cylindrical, and the diameter of the bottom surface of the cylinder of the first channel is smaller than that of the bottom surface of the cylinder of the chassis.
Further, the valve body also comprises a lower cavity arranged below the first channel;
the lower cavity is cylindrical, one end of the lower cavity is communicated with the first channel, the other end of the lower cavity is communicated with the interior of the air distributing cylinder, and the diameter of the bottom surface of the lower cavity cylinder is larger than that of the bottom surface of the first channel cylinder.
Further, the inner side wall of the valve cover is in threaded connection with the outer side wall of the top of the valve body.
Further, the device also comprises a sealing ring;
the sealing ring is arranged between the inner top surface of the valve cover and the top of the valve body.
Furthermore, the chassis is provided with two through holes which are communicated with the upper cavity and the first channel.
Furthermore, the valve cover and the valve body are provided with symmetrically distributed plane cutting platforms on the respective peripheral surfaces.
According to the technical scheme, the guide pipe vertically connected to the chassis on the valve core is arranged in the second channel, when the chassis placed on the first channel is impacted by steam from the first channel, the guide pipe moves upwards along the second channel, and the sealing ring seals a gap between the second channel and the guide pipe, so that the sealing effect is achieved, and the steam cannot overflow the steam distributing cylinder; after the steam supply is stopped, the pressure in the branch cylinder is gradually reduced until the pressure is insufficient to support the valve core, the valve core falls back to the first channel, the outside and the inside of the branch cylinder are kept in a communicated state through the guide pipe and the through hole in the chassis, air outside the cylinder can still flow into the cylinder, the vacuum negative pressure formed in the branch cylinder is avoided, and therefore the condensed water in the cylinder can be smoothly discharged.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
FIG. 1 is a semi-sectional view of a novel vacuum break valve in an embodiment provided herein;
FIG. 2 is an exploded view of a novel vacuum break valve in an embodiment provided herein;
in the figure: 1. a valve body; 2. a valve cover; 3. a seal ring; 4. a seal ring; 11. an upper chamber; 12. a first channel; 13. a lower cavity; 21. a second channel; 21. a chassis; 52. a guide tube.
Detailed Description
The technical solutions of the embodiments of the present application will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without any creative effort belong to the protection scope of the embodiments in the present application.
In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the embodiments of the present application and simplifying the description, but do not indicate or imply that the referred devices or elements must have specific orientations, be configured in specific orientations, and operate, and thus, should not be construed as limiting the embodiments of the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present application, it should be noted that the terms "mounted," "connected," and "connected" are used broadly and are defined as, for example, a fixed connection, an exchangeable connection, an integrated connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, and a communication between two elements, unless otherwise explicitly stated or limited. Specific meanings of the above terms in the embodiments of the present application can be understood in specific cases by those of ordinary skill in the art.
The embodiment of the application discloses a novel vacuum breaking valve.
Referring to fig. 1, an embodiment of a novel vacuum breaker provided in an embodiment of the present application includes: the valve comprises a valve body 1, a valve cover 2, a sealing ring 4 and a valve core; the valve body 1 is arranged on the air distributing cylinder, and an upper cavity 11 and a first channel 12 which are distributed from top to bottom and are communicated with each other are arranged in the valve body; wherein the first channel 12 is communicated with the inside of the branch cylinder; the valve cover 2 is sleeved on the top of the valve body 1, and a second channel 21 penetrating through the top surface of the valve cover 2 is arranged on the top surface; the valve core comprises a base plate 51 and a guide pipe 52; one end of the guide pipe 52 is vertically connected with the chassis 51, and the other end movably extends out of the second channel 21 to be in sliding fit with the second channel 21 and is provided with a through hole for communicating the outside with the upper cavity 11; the chassis 51 is arranged in the upper cavity 11 in a sliding manner and is provided with at least one through hole which is communicated with the upper cavity 11 and the first channel 12 under the condition that the chassis 51 is not subjected to steam impact force; the sealing ring 4 is arranged around the vertical connection part of the guide pipe 52 and the chassis 51 and is used for sealing the second channel 21 under the steam impact force state of the valve core.
The chassis 51 is statically arranged on the first channel 12 under the state of not bearing external force, and the outside is communicated with the inside of the air distributing cylinder through a through hole on the chassis 51 and a through hole on the guide pipe 52; specifically, the bottom plate 51 may be configured into various shapes, such as a square cylinder, a cylinder, etc., and accordingly, in order to make the sliding effect of the bottom plate 51 in the upper chamber 11 more ideal, the upper chamber 11 may be configured into a square cylinder chamber, a cylinder chamber, etc., and at this time, the first channel 12 may have various shapes, and the bottom plate is allowed to not completely cover the first channel 12; specifically, the first channel 12 can receive the bottom plate 51 without corresponding to the shape of the bottom plate 51. Similarly, the guide tube 52 and the second passage 21 may be provided in various shapes.
The guide tube 52 is provided with a through hole for communicating the outside with the upper cavity 11, and can be a hollow tube and is provided with a through hole with the side wall; alternatively, the outer wall of the guide tube 52 may be slightly smaller than the second channel 21, that is, a gap exists between the guide tube 52 and the second channel 21 to keep the exterior communicated with the upper chamber, so that the sealing ring 4 can cover and seal the gap when the chassis moves upward under the impact of steam.
The sealing ring 4 is arranged around the vertical connection part of the guide pipe 52 and the chassis 51, and specifically, a cavity for the sealing ring 4 to be embedded is arranged on the chassis 51 at the connection part of the guide pipe 52.
The above is the first embodiment provided in the present application, and the following is the second embodiment provided in the present application, specifically referring to fig. 1.
A novel vacuum breaking valve comprises a valve body 1, a valve cover 2, a sealing ring 4 and a valve core; the valve body 1 is arranged on the air distributing cylinder, and an upper cavity 11 and a first channel 12 which are distributed from top to bottom and are communicated with each other are arranged in the valve body; wherein the first channel 12 is communicated with the inside of the branch cylinder; the valve cover 2 is sleeved on the top of the valve body 1, and a second channel 21 penetrating through the top surface of the valve cover 2 is arranged on the top surface; the valve core comprises a base plate 51 and a guide pipe 52; one end of the guide pipe 52 is vertically connected with the chassis 51, and the other end movably extends out of the second channel 21 to be in sliding fit with the second channel 21 and is provided with a through hole for communicating the outside with the upper cavity 11; the chassis 51 is arranged in the upper cavity 11 in a sliding manner and is provided with at least one through hole which is communicated with the upper cavity 11 and the first channel 12 when the chassis 51 is not subjected to external force; the sealing ring 4 is arranged around the vertical connection part of the guide pipe 52 and the chassis 51 and is used for sealing the second channel 21 when the valve core is under the external force state.
Further, the second passage 21 is disposed at a central position of the valve cover 2, and is a cylindrical passage.
Correspondingly, the guiding tube 52 is a hollow cylindrical tube, and the tube wall is perforated at a symmetrical position above the sealing ring 4 to communicate the internal hollow cavity with the upper cavity 11.
Further, in the present embodiment, the upper chamber 11 and the bottom plate 51 are both cylindrical, and the diameter of the cylindrical bottom surface of the upper chamber 11 is larger than that of the cylindrical bottom surface of the bottom plate.
Further, in the present embodiment, the first passage 12 is cylindrical, and the diameter of the cylindrical bottom surface of the first passage 12 is smaller than that of the bottom plate 51.
Further, the valve body 1 further comprises a lower cavity 13 disposed below the first passage 12; the lower cavity 13 is cylindrical, one end of the lower cavity is communicated with the first channel 12, the other end of the lower cavity is communicated with the inside of the gas-distributing cylinder, and the diameter of the cylindrical bottom surface of the lower cavity 13 is larger than that of the cylindrical bottom surface of the first channel 12.
Further, the inner side wall of the valve cover 2 is in threaded connection with the outer side wall of the top of the valve body 1.
Further, the device also comprises a sealing ring 3; the sealing ring 3 is arranged between the inner top surface of the valve cover 2 and the top of the valve body 1.
Specifically, in order to ensure the sealing of the valve cap 2 and the valve body 1 after the connection, a seam may be welded or the threads may be provided as sealing type labyrinth threads.
Further, the number of the through holes for communicating the upper chamber 11 and the first channel 12 is two on the bottom plate 51.
Furthermore, the valve cover 2 and the valve body 1 are provided with symmetrically distributed plane cutting platforms on the respective peripheral surfaces, and the plane cutting platforms are used as acting points during installation.
It should be noted that the above-mentioned embodiments are only preferred embodiments of the present application, and not intended to limit the present invention, and although the present application has been described in detail with reference to the examples, it will be apparent to those skilled in the art that modifications can be made to the technical solutions described in the foregoing examples, or equivalent substitutions of some technical features can be made, any modifications, equivalents, improvements, etc. within the spirit and principle of the present application shall be included in the scope of the present application.
Claims (10)
1. A novel vacuum breaking valve is characterized by comprising a valve body, a valve cover, a sealing ring and a valve core;
the valve body is arranged on the air distributing cylinder, and an upper cavity and a first channel which are distributed from top to bottom and are communicated with each other are arranged in the valve body;
the first channel is communicated with the interior of the branch cylinder;
the valve cover is sleeved at the top of the valve body, and a second channel penetrating through the top surface of the valve cover is arranged on the top surface of the valve cover;
the valve core comprises a chassis and a guide pipe;
one end of the guide pipe is vertically connected with the chassis, the other end of the guide pipe movably extends out of the second channel to be in sliding fit with the second channel, and a through hole for communicating the outside with the upper cavity is formed;
the chassis is arranged in the upper cavity in a sliding manner and is provided with at least one through hole which is communicated with the upper cavity and the first channel under the condition that the chassis is not subjected to steam impact force;
the sealing ring is arranged around a vertical connecting part of the guide pipe and the chassis and used for sealing the second channel by the impact force of steam on the valve core in the steam supply state of the steam distributing cylinder.
2. The novel vacuum breaking valve as claimed in claim 1, wherein the second channel is disposed at a central position of the valve cover and is a cylindrical channel.
3. The novel vacuum breaking valve as claimed in claim 2, wherein the guide tube is a hollow cylindrical tube, and holes are symmetrically formed in the tube wall above the sealing ring to communicate the inner hollow cavity with the upper cavity.
4. The novel vacuum breaking valve according to claim 3, wherein the upper cavity and the bottom plate are both cylindrical, and the diameter of the bottom surface of the upper cavity cylinder is larger than that of the bottom surface of the bottom plate cylinder.
5. The novel vacuum breaking valve according to claim 4, wherein the first passage is cylindrical, and the diameter of the cylindrical bottom surface of the first passage is smaller than that of the cylindrical bottom surface of the chassis.
6. The novel vacuum breaking valve according to claim 5, wherein the valve body further comprises a lower cavity disposed below the first passage;
the lower cavity is cylindrical, one end of the lower cavity is communicated with the first channel, the other end of the lower cavity is communicated with the interior of the air distributing cylinder, and the diameter of the bottom surface of the lower cavity cylinder is larger than that of the bottom surface of the first channel cylinder.
7. The novel vacuum breaking valve as claimed in claim 1, wherein the inner side wall of the valve cover is in threaded connection with the outer side wall of the top of the valve body.
8. The novel vacuum breaking valve according to claim 1, further comprising a sealing ring;
the sealing ring is arranged between the inner top surface of the valve cover and the top of the valve body.
9. The novel vacuum breaking valve according to claim 1, wherein the number of through holes which are arranged on the chassis and are communicated with the upper cavity and the first channel is two.
10. The novel vacuum breaking valve as claimed in claim 1, wherein the valve cover and the valve body are provided with symmetrically distributed plane cutting platforms on respective outer peripheral surfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021695174.1U CN212960864U (en) | 2020-08-14 | 2020-08-14 | Novel vacuum breaking valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021695174.1U CN212960864U (en) | 2020-08-14 | 2020-08-14 | Novel vacuum breaking valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212960864U true CN212960864U (en) | 2021-04-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021695174.1U Active CN212960864U (en) | 2020-08-14 | 2020-08-14 | Novel vacuum breaking valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212960864U (en) |
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2020
- 2020-08-14 CN CN202021695174.1U patent/CN212960864U/en active Active
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