CN114526358A - A new type of three-way automatic reversing bypass valve - Google Patents
A new type of three-way automatic reversing bypass valve Download PDFInfo
- Publication number
- CN114526358A CN114526358A CN202011324349.2A CN202011324349A CN114526358A CN 114526358 A CN114526358 A CN 114526358A CN 202011324349 A CN202011324349 A CN 202011324349A CN 114526358 A CN114526358 A CN 114526358A
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- China
- Prior art keywords
- valve
- automatic reversing
- novel
- cover
- way automatic
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
- F16K11/20—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/08—Guiding yokes for spindles; Means for closing housings; Dust caps, e.g. for tyre valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/60—Handles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K41/00—Spindle sealings
- F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Valve Housings (AREA)
Abstract
本发明属于换向阀，具体涉及一种新型的三通自动换向旁通阀。一种新型的三通自动换向旁通阀，包括阀体，在阀体内部的空腔内设置压套，在压套围成的空腔内设置换向阀瓣，压套上设置通孔，连通内部空腔与外部，在压套的通孔中设置阀瓣，阀瓣与阀杆固定连接，阀杆与手轮固定连接。本发明的显著效果是：三通自动换向阀结构可以在阀门上游、阀门下游和阀体内腔之间设置三通压力平衡装置，根据双向流体压力自动控制，以满足核电站设备国产化的需要，实现以国代进。
The invention belongs to a reversing valve, in particular to a novel three-way automatic reversing bypass valve. A new type of three-way automatic reversing bypass valve includes a valve body, a pressure sleeve is arranged in a cavity inside the valve body, a reversing valve disc is arranged in the cavity enclosed by the pressure sleeve, and a through hole is arranged on the pressure sleeve , which communicates the inner cavity and the outside, a valve flap is arranged in the through hole of the pressing sleeve, the valve flap is fixedly connected with the valve stem, and the valve stem is fixedly connected with the handwheel. The remarkable effect of the invention is that 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, which can be automatically controlled according to the two-way fluid pressure to meet the needs of localization of nuclear power plant equipment, Realize the advancement of the country.
Description
Technical Field
The invention belongs to reversing valves, and particularly relates to a novel three-way 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.
Disclosure of Invention
The invention aims at the defects of the prior art and provides a novel three-way automatic reversing bypass valve.
The invention is realized by the following steps: 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, a valve rod nut and a gland nut, wherein the valve cover assembly is fixedly connected with a valve body, the valve rod nut is sleeved on a valve rod, and the gland nut is sleeved on the valve rod nut and is 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.
The invention has the following remarkable effects: 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 view of the structure in the direction of a-a in 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.
According to the invention, the three-way pressure balancing device can be arranged between the upstream of the valve, the downstream of the valve and the inner cavity of the valve body in the three-way automatic reversing valve structure, and the three-way pressure balancing device is automatically controlled according to the pressure of the two-way fluid, so that the requirement of the nuclear power station equipment for localization is met, and the national development is realized.
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 bypass three-way automatic reversing valve as claimed in claim 5, characterized in that: 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 |
|---|---|---|---|
| CN202011324349.2A CN114526358A (en) | 2020-11-23 | 2020-11-23 | A new type of three-way automatic reversing bypass valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011324349.2A CN114526358A (en) | 2020-11-23 | 2020-11-23 | A new type of three-way automatic reversing bypass valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114526358A true CN114526358A (en) | 2022-05-24 |
Family
ID=81619465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011324349.2A Pending CN114526358A (en) | 2020-11-23 | 2020-11-23 | A new type of three-way automatic reversing bypass valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114526358A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110232320A1 (en) * | 2010-03-24 | 2011-09-29 | Fujikoki Corporation | Flow reversing valve and heat pump device using same |
| CN202790698U (en) * | 2012-08-09 | 2013-03-13 | 北京神雾环境能源科技集团股份有限公司 | Small-size dual-switch three-way reversing valve |
| CN108374914A (en) * | 2018-04-23 | 2018-08-07 | 大连大高阀门股份有限公司 | Bidirectional non-return valve |
| CN210600226U (en) * | 2019-07-16 | 2020-05-22 | 中核苏阀科技实业股份有限公司 | A double block bottom valve |
| CN214743534U (en) * | 2020-11-23 | 2021-11-16 | 中核苏阀科技实业股份有限公司 | Novel three-way automatic reversing bypass valve |
-
2020
- 2020-11-23 CN CN202011324349.2A patent/CN114526358A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110232320A1 (en) * | 2010-03-24 | 2011-09-29 | Fujikoki Corporation | Flow reversing valve and heat pump device using same |
| CN202790698U (en) * | 2012-08-09 | 2013-03-13 | 北京神雾环境能源科技集团股份有限公司 | Small-size dual-switch three-way reversing valve |
| CN108374914A (en) * | 2018-04-23 | 2018-08-07 | 大连大高阀门股份有限公司 | Bidirectional non-return valve |
| CN210600226U (en) * | 2019-07-16 | 2020-05-22 | 中核苏阀科技实业股份有限公司 | A double block bottom valve |
| CN214743534U (en) * | 2020-11-23 | 2021-11-16 | 中核苏阀科技实业股份有限公司 | Novel three-way automatic reversing bypass valve |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220524 |
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| RJ01 | Rejection of invention patent application after publication |