CN214743534U - Novel three-way automatic reversing bypass valve - Google Patents
Novel three-way automatic reversing bypass valve Download PDFInfo
- Publication number
- CN214743534U CN214743534U CN202022727828.0U CN202022727828U CN214743534U CN 214743534 U CN214743534 U CN 214743534U CN 202022727828 U CN202022727828 U CN 202022727828U CN 214743534 U CN214743534 U CN 214743534U
- Authority
- CN
- China
- Prior art keywords
- valve
- novel
- cover
- automatic reversing
- way automatic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Valve Housings (AREA)
Abstract
This novel reversing valve that belongs to, concretely relates to novel bypass tee bend automatic reversing valve. The utility model provides a novel bypass tee bend automatic reversing valve, includes the valve body, sets up in the inside cavity of valve body and presses the cover, sets up the switching-over valve clack in pressing the cavity that the cover encloses, presses and sets up the through-hole on the cover, communicates inside cavity and outside, sets up the valve clack in the through-hole of pressing the cover, valve clack and valve rod fixed connection, valve rod and hand wheel fixed connection. This neotype effect that is showing is: the three-way automatic reversing valve structure can be provided with a three-way pressure balancing device between the upstream of the valve, the downstream of the valve and the inner cavity of the valve body, and can be automatically controlled according to the pressure of the two-way fluid so as to meet the requirement of the localization of nuclear power plant equipment and realize the national replacement.
Description
Technical Field
This novel reversing valve that belongs to, concretely relates to novel tee bend automatic reversing bypass valve.
Background
The boiler effect of the gate valve is essentially a temperature effect, and some heat sources will heat the medium in the space inside the gate valve in the closed state and cause a large pressure rise in this space. This pressure increase will make the gate valve unable to open or the gate plate deformed and unable to guarantee its tightness. In order to prevent the boiler effect, a balance hole is opened on a gate plate on the high-pressure side of the valve or a bypass valve is added in the valve design.
With the continuous increase of energy demand in China, nuclear power enters a new stage of batch development and technology updating in China, and higher technical requirements are put forward on valves. In some system valves, fluid pressure may occur upstream or downstream of the valve, and the prior art bypass valve structure cannot meet the requirements of the system, so that a new structure needs to be developed to meet the requirements.
Novel content
The novel content is to provide a novel three-way automatic reversing bypass valve aiming at the defects of the prior art.
This is novel to realize like this: the utility model provides a novel tee bend automatic reversing bypass valve, includes the valve body, sets up in the inside cavity of valve body and presses the cover, sets up the switching-over valve clack in pressing the cavity that the cover encloses, presses and sets up the through-hole on the cover, communicates inside cavity and outside, sets up the valve clack in the through-hole of pressing the cover, valve clack and valve rod fixed connection, valve rod and hand wheel fixed connection.
The novel three-way automatic reversing bypass valve further comprises a valve cover assembly, and the valve cover assembly is used for supporting and fixing the valve rod.
The novel three-way automatic reversing bypass valve comprises a valve cover fixedly connected with a valve body, a valve rod nut sleeved on a valve rod and a gland nut sleeved on the valve rod nut and fixedly connected with the valve cover.
The novel three-way automatic reversing bypass valve comprises a valve body, a pressure sleeve and a gasket, wherein the pressure sleeve is arranged on the valve body, and the gasket is arranged between the pressure sleeve and the valve body.
The novel three-way automatic reversing bypass valve comprises a valve body, a pressure sleeve and a valve body, wherein the pressure sleeve is fixed on the valve body through a flange.
According to the novel three-way automatic reversing bypass valve, the valve cover is sealed in a thread and graphite gasket composite sealing mode.
The novel three-way automatic reversing bypass valve has the advantages that the reversing valve clack adopts a middle guide structure, and the sealing surface adopts spherical sealing.
This neotype effect that is showing is: the three-way automatic reversing valve structure can be provided with a three-way pressure balancing device between the upstream of the valve, the downstream of the valve and the inner cavity of the valve body, and can be automatically controlled according to the pressure of the two-way fluid so as to meet the requirement of the localization of nuclear power plant equipment and realize the national replacement.
Drawings
FIG. 1 is a structural diagram of a three-way automatic reversing valve;
FIG. 2 is a schematic diagram of the AA-oriented structure of FIG. 1.
In the figure: 1. a valve body; 2. a reversing valve flap; 3. a gasket; 4. pressing the sleeve; 5. a flange; 6. a valve flap; 7. a valve cover; 8. a gland nut; 9. a valve stem; 10. a valve stem nut; 11. hand wheel
I, II and III are three ports connected with the valve
Detailed Description
The port I is connected with the inlet end of the main valve, the port II is connected with the outlet end of the main valve, and the port III is connected with the middle cavity of the main valve; the reversing valve clack automatically controls the sealing direction in the inner cavity of the valve body according to the system pressure; if the pressure of the inlet end is higher than that of the outlet end, the reversing valve clack is sealed with the outlet end, and the middle cavity is communicated with the inlet end to keep pressure balance; and vice versa.
The novel bypass valve structure adopts a middle guide structure, and the reversing valve clack moves horizontally in the inner cavity of the valve body; and a reliable seal is established by adopting spherical seal.
According to the novel bypass valve structure, the pressure sleeve is provided with two seals, the gasket is a wound gasket, and the sealing performance is good under high temperature and high pressure.
According to the novel bypass valve structure, the valve cover is in a sealing structure of a large nut and a graphite gasket, and the thread of the valve cover is prevented from rotating by a structure of a tooth-shaped gasket and a screw.
The three-way automatic reversing valve structure has I and II ports connected separately to the inlet and outlet of the main valve and III port connected to the middle cavity of the main valve.
The reversing valve clack moves horizontally in the valve cavity, and a seal is established between the fluid pressure and a pressure sleeve at the low-pressure end. Two seals are arranged at the pressing sleeve and are pressed tightly through a flange.
The valve body and the valve cover adopt a sealing structure of threads and a graphite gasket, and the sealing is reliable. The screw thread adopts a structure of a tooth-shaped pad and a screw to prevent rotation.
Through this is novel, tee bend automatic reversing valve structure can set up tee bend pressure equaliser between valve upper reaches, valve low reaches and the valve body inner chamber, according to two-way fluid pressure automatic control to satisfy the needs of nuclear power station equipment localization, realize advancing with the country.
Claims (7)
1. The utility model provides a novel tee bend automatic reversing bypass valve which characterized in that: including valve body (1), set up in the inside cavity of valve body (1) and press cover (4), set up switching-over valve clack (2) in the cavity that pressure cover (4) enclose, set up the through-hole on pressing cover (4), communicate inside cavity and outside, set up valve clack (6) in the through-hole of pressing cover (4), valve clack (6) and valve rod (9) fixed connection, valve rod (9) and hand wheel (11) fixed connection.
2. The novel three-way automatic reversing bypass valve as claimed in claim 1, wherein: the valve cover assembly is used for supporting and fixing the valve rod (9).
3. The novel three-way automatic reversing bypass valve as claimed in claim 2, wherein: the valve cover component comprises a valve cover (7) fixedly connected with the valve body (1), a valve rod nut (10) sleeved on the valve rod (9), and a gland nut (8) sleeved on the valve rod nut (10) and fixedly connected with the valve cover (7).
4. The novel three-way automatic reversing bypass valve as claimed in claim 3, characterized in that: a gasket (3) is arranged between the pressing sleeve (4) and the valve body (1).
5. The novel three-way automatic reversing bypass valve as claimed in claim 4, wherein: the pressing sleeve (4) is fixed on the valve body (1) through a flange (5).
6. The novel three-way automatic reversing bypass valve as claimed in claim 5, wherein: the valve cover (7) is sealed in a screw thread and graphite gasket composite sealing mode.
7. The novel three-way automatic reversing bypass valve as claimed in claim 6, wherein: the reversing valve clack (2) adopts a middle guide structure, and a sealing surface adopts spherical surface sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022727828.0U CN214743534U (en) | 2020-11-23 | 2020-11-23 | Novel three-way automatic reversing bypass valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022727828.0U CN214743534U (en) | 2020-11-23 | 2020-11-23 | Novel three-way automatic reversing bypass valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214743534U true CN214743534U (en) | 2021-11-16 |
Family
ID=78618064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022727828.0U Active CN214743534U (en) | 2020-11-23 | 2020-11-23 | Novel three-way automatic reversing bypass valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214743534U (en) |
-
2020
- 2020-11-23 CN CN202022727828.0U patent/CN214743534U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN214743534U (en) | Novel three-way automatic reversing bypass valve | |
| CN202327194U (en) | Seal regulating ball valve | |
| CN202937823U (en) | Zero leakage regulating valve with double valve seats | |
| CN204004559U (en) | A kind of sampling T-way valve | |
| CN114526358A (en) | Novel three-way automatic reversing bypass valve | |
| CN209654621U (en) | A kind of novel two-way high sealing double eccentric butterfly valve | |
| CN214838417U (en) | Stop valve | |
| CN210890162U (en) | Low-temperature pressure reduction regulating valve | |
| CN208605637U (en) | A kind of high flow capacity remote control float valve | |
| CN208595286U (en) | A kind of overall diameter through type mud valve | |
| CN105729688A (en) | Valve with integrated valve island | |
| CN208365206U (en) | A kind of gas pipeline pressure adjusting pressure control device | |
| CN111706681A (en) | Butterfly valve structure for fine adjustment of small flow of large-diameter pipeline | |
| CN221034002U (en) | High-performance bidirectional sealing spherical butterfly valve | |
| CN207796110U (en) | A kind of smoke valve lock | |
| CN206257324U (en) | A kind of valve for pressure difference | |
| CN206738670U (en) | A kind of sleeve axial flow control valve | |
| CN216200576U (en) | Manual stop valve for spaceflight | |
| CN220910597U (en) | Flashboard type regulating valve for heat supply | |
| CN213575577U (en) | Butterfly valve structure for fine adjustment of small flow of large-diameter pipeline | |
| CN212509583U (en) | High-pressure zero-leakage double-sealing auxiliary stop valve | |
| CN219221277U (en) | Low-torque stop valve | |
| CN213393575U (en) | Right-angle stop valve for refrigeration | |
| CN221145498U (en) | Angular travel flow control valve | |
| CN211975907U (en) | Two-way self-supporting low temperature butterfly valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |