CN110985715A - Y-shaped two-body ball sealing check valve for nuclear power island core - Google Patents
Y-shaped two-body ball sealing check valve for nuclear power island core Download PDFInfo
- Publication number
- CN110985715A CN110985715A CN201911265225.9A CN201911265225A CN110985715A CN 110985715 A CN110985715 A CN 110985715A CN 201911265225 A CN201911265225 A CN 201911265225A CN 110985715 A CN110985715 A CN 110985715A
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- Prior art keywords
- valve
- sealing
- valve body
- ball
- shaped
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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
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/04—Check valves with guided rigid valve members shaped as balls
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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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
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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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
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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
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0209—Check valves or pivoted 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0245—Construction of housing; Use of materials therefor of lift valves with ball-shaped valve 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
- F16K27/08—Guiding yokes for spindles; Means for closing housings; Dust caps, e.g. for tyre valves
Abstract
The invention relates to a Y-shaped two-body ball sealing check valve for a nuclear power island core, which comprises a valve body and a valve cover, wherein the valve cover is arranged on the valve body to form a valve cavity; the lower side of the valve body is obliquely provided with an inlet, the upper side of the valve body is obliquely provided with an outlet, the inlet is opposite to the outlet and is respectively communicated with the valve cavity to form an oblique main runner; the check valve further comprises a valve seat and a sealing ball, the valve seat is arranged in the valve cavity and detachably connected with the valve body, and the sealing ball is arranged in the valve cavity, moves up and down along the valve cavity and is in sealing contact with or separated from the valve seat. The problem that the sealing element is damaged and not easy to disassemble and replace is solved, the problems that the straight-through Y-shaped valve body is large in fluid resistance and slag is easy to accumulate at the bent part are solved, the valve is beneficial to cleaning, and the damaged sealing element is convenient to disassemble and replace.
Description
Technical Field
The invention relates to a valve, in particular to a Y-shaped two-body ball sealing check valve for a nuclear power island core.
Background
Conventional check valve bodies are monolithic. The combination of the valve body and the valve seat mainly has two forms; firstly, the sealing surface of the valve seat is directly welded on the sealing part of the valve body to be processed. Secondly, after the valve seat is made of selected materials according to different media, the valve seat is fixed on the sealing part of the valve body by adopting methods of expanding, threaded connection, pressing, welding and the like. After both forms of valve seat damage, it is difficult to remove the valve seat for repair or replace it with a new valve seat.
Disclosure of Invention
The invention provides a Y-shaped two-body ball sealing check valve for a nuclear power island core.
The technical scheme of the invention is as follows:
a Y-shaped two-body ball sealing check valve for a nuclear power island core comprises a valve body and a valve cover, wherein the valve cover is arranged on the valve body to form a valve cavity; the lower side of the valve body is obliquely provided with an inlet, the upper side of the valve body is obliquely provided with an outlet, the inlet is opposite to the outlet and is respectively communicated with the valve cavity to form an oblique main runner; the check valve further comprises a valve seat and a sealing ball, the valve seat is arranged in the valve cavity and detachably connected with the valve body, and the sealing ball is arranged in the valve cavity, moves up and down along the valve cavity and is in sealing contact with or separated from the valve seat.
The main flow passage is formed in a Y-shape by making an oblique line with the flow passage of the valve body, so that the degree of damage of the flow state is smaller than that of the conventional check valve, and the pressure loss through the valve is correspondingly smaller. And (3) normal operation of the valve: the medium enters from the inlet, overcomes the automatic effect of the sealing ball under the medium pressure, pushes the sealing ball to move upwards, separates from the valve seat and opens the valve; no medium passes through, and the sealing ball moves downwards under the action of the dead weight of the sealing ball and is in sealing contact with the valve seat to close the valve. Stopping: the medium flows back and enters from the outlet, and under the combined action of the medium pressure and the self weight of the sealing ball, the sealing ball moves downwards to be in sealing contact with the valve seat, the valve is closed, and the purpose of non-return is realized; when the valve is opened or closed, the sealing ball moves up and down in the valve cavity and rotates randomly, fixed abrasion points do not exist, the spherical surface is abraded uniformly in the working process, good shape precision is kept all the time, the service performance cannot be reduced along with time, and the service life of the sealing element is prolonged.
Furthermore, a cylindrical leakage net is also arranged in the valve cavity, the cylindrical leakage net is covered on the sealing ball, the upper end of the cylindrical leakage net is arc-shaped, and the lower end of the cylindrical leakage net is contacted with the valve seat to form a channel for accommodating the sealing ball to move up and down; the function of guiding and protecting the sealing ball is achieved.
Furthermore, the upper end of the cylindrical drain net extends into the valve cover and is in contact with the valve cover; the installation is more stable; preferably, the cylindrical drain net is a stainless steel wire net.
Further, a valve cover mounting opening is formed in the upper end of the valve body, is located right above the valve cavity and is connected with the valve cavity, and a step is arranged at the connecting position of the valve cover mounting opening and the valve cavity; the valve gap sets up in the valve gap installing port, and the valve gap lower extreme supports on the step, and has set gradually four ring-opening, clamping ring, hard self-sealing ring from top to bottom between valve gap and valve body.
Further, still set up the apron on the valve gap installing port, the apron supports on the valve body, is provided with a plurality of bolts on it, and the bolt stretches into valve gap installing port, fixed connection apron and valve gap.
Furthermore, the cover plate is also provided with a lifting bolt; the valve is convenient to disassemble and assemble.
Further, the valve body comprises an upper valve body and a lower valve body, the upper valve body and the lower valve body are fixedly connected through nuts and bolts, and a sealing ring is arranged between the upper valve body and the lower valve body; the disassembly and maintenance are convenient.
The valve has the advantages of being reasonable in design and simple in structure, solving the problems that a sealing element is damaged and is not easy to detach and replace, solving the problems that a straight-through Y-shaped valve body is large in fluid resistance and easy to accumulate slag at a bend, being beneficial to cleaning the valve and being convenient to detach and replace the damaged sealing element.
Drawings
FIG. 1 is a schematic structural view of a Y-shaped two-body ball-sealing check valve for a nuclear power island core.
In the figure, an upper valve body 1-1 of a valve cover 2, a lower valve body 1-2, a sealing ring 1-3, an inlet 4, an outlet 4, a valve seat 6, a sealing ball 7, a cylindrical leakage net 8, four open rings 9, a pressing ring 10, a hard self-sealing ring 11, a cover plate 12 and an eye bolt 13 are arranged on the valve cover 2.
Detailed Description
As shown in the figure, the Y-shaped two-body ball sealing check valve for the nuclear power island core comprises a valve body and a valve cover 2, wherein the valve body comprises an upper valve body 1-1 and a lower valve body 1-2, the upper valve body 1-1 and the lower valve body 1-2 are fixedly connected through nuts and bolts, and a sealing ring 1-3 is arranged between the upper valve body 1-1 and the lower valve body 1-2; the valve cover 2 is arranged on the valve body to form a valve cavity 3; the lower side of the valve body is obliquely provided with an inlet 4, the upper side of the valve body is obliquely provided with an outlet 5, the inlet 4 is opposite to the outlet 5 and is respectively communicated with the valve cavity 3 to form an oblique main runner; the check valve also comprises a valve seat 6 and a sealing ball 7, wherein the valve seat 6 is arranged in the valve cavity 3 and is detachably connected with the valve body 1, and the sealing ball 7 is arranged in the valve cavity 1, moves up and down along the valve cavity 3 and is in sealing contact with or separated from the valve seat 6; a cylindrical leakage net 8 is further arranged in the valve cavity 3, the cylindrical leakage net 8 covers the sealing ball 7, the upper end of the cylindrical leakage net 7 is arc-shaped, and the lower end of the cylindrical leakage net is in contact with the valve seat 6 to form a channel for accommodating the sealing ball 7 to move up and down; the upper end of the cylindrical leakage net 7 extends into the valve cover 2 and is in contact with the valve cover 2; a valve cover mounting opening is formed in the upper end of the valve body 1, is positioned right above the valve cavity 3 and is connected with the valve cavity 3, and a step is formed at the connecting position of the valve cover mounting opening and the valve cavity 3; the valve cover 2 is arranged in the valve cover mounting opening, the lower end of the valve cover 2 abuts against the step, and a four-open ring 9, a pressure ring 10 and a hard self-sealing ring 11 are sequentially arranged between the valve cover 2 and the valve body 1 from top to bottom; the valve cover mounting opening is also provided with a cover plate 12, the cover plate 12 is supported on the valve body, a plurality of bolts are arranged on the cover plate 12, and the bolts extend into the valve cover mounting opening to fixedly connect the cover plate 12 and the valve cover 2; the cover plate 12 is also provided with an eye bolt 13.
Although the preferred embodiments of the present invention have been described above with reference to the accompanying drawings, the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and those skilled in the art can make many modifications without departing from the spirit and scope of the present invention as defined in the appended claims.
Claims (7)
1. A Y-shaped two-body ball sealing check valve for a nuclear power island core comprises a valve body and a valve cover, wherein the valve cover is arranged on the valve body to form a valve cavity; the valve is characterized in that an inlet is obliquely arranged at the lower side of the valve body, an outlet is obliquely arranged at the upper side of the valve body, the inlet is opposite to the outlet and is respectively communicated with the valve cavity to form an oblique main runner; the check valve further comprises a valve seat and a sealing ball, the valve seat is arranged in the valve cavity and detachably connected with the valve body, and the sealing ball is arranged in the valve cavity, moves up and down along the valve cavity and is in sealing contact with or separated from the valve seat.
2. The Y-shaped two-body ball-sealing check valve for the nuclear power island core as claimed in claim 1, wherein a cylindrical leakage net is further arranged in the valve cavity, the cylindrical leakage net is covered on the sealing ball, the upper end of the cylindrical leakage net is arc-shaped, and the lower end of the cylindrical leakage net is in contact with the valve seat to form a channel for accommodating the sealing ball to move up and down.
3. The Y-shaped two-body ball sealing check valve for the nuclear power island core as claimed in claim 1, wherein the upper end of the cylindrical drain net extends into the valve cover and is in contact with the valve cover.
4. The Y-shaped two-body ball sealing check valve for the nuclear power island core as claimed in claim 1, wherein a valve cover mounting port is arranged at the upper end of the valve body, the valve cover mounting port is positioned right above the valve cavity and connected with the valve cavity, and a step is arranged at the connection part of the valve cover mounting port and the valve cavity; the valve gap sets up in the valve gap installing port, and the valve gap lower extreme supports on the step, and has set gradually four ring-opening, clamping ring, hard self-sealing ring from top to bottom between valve gap and valve body.
5. The Y-shaped two-body ball sealing check valve for the nuclear power island core as claimed in claim 3, wherein a cover plate is further arranged on the valve cover mounting opening, the cover plate is supported on the valve body, a plurality of bolts are arranged on the cover plate, the bolts extend into the valve cover mounting opening, and the cover plate and the valve cover are fixedly connected.
6. The Y-shaped two-body ball sealing check valve for the nuclear power island core according to claim 4, wherein an eyebolt is further arranged on the cover plate.
7. The Y-shaped two-body ball sealing check valve for the nuclear power island core as claimed in claim 1, wherein the valve body comprises an upper valve body and a lower valve body, the upper valve body and the lower valve body are fixedly connected through nuts and bolts, and a sealing ring is arranged between the upper valve body and the lower valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911265225.9A CN110985715A (en) | 2019-12-11 | 2019-12-11 | Y-shaped two-body ball sealing check valve for nuclear power island core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911265225.9A CN110985715A (en) | 2019-12-11 | 2019-12-11 | Y-shaped two-body ball sealing check valve for nuclear power island core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110985715A true CN110985715A (en) | 2020-04-10 |
Family
ID=70092254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911265225.9A Pending CN110985715A (en) | 2019-12-11 | 2019-12-11 | Y-shaped two-body ball sealing check valve for nuclear power island core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110985715A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113588539A (en) * | 2021-09-26 | 2021-11-02 | 南通国电阀门科技有限公司 | Wear-resisting slag discharge valve corrosion resistance detection device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5593292A (en) * | 1994-05-04 | 1997-01-14 | Ivey; Ray K. | Valve cage for a rod drawn positive displacement pump |
| CN200949689Y (en) * | 2006-07-31 | 2007-09-19 | 广州聚能生物科技有限公司 | One-way valve with easy changing valve seat |
| CN102878331A (en) * | 2012-10-13 | 2013-01-16 | 南通国电电站阀门有限公司 | Self seal guiding type stop check valve |
| CN103398201A (en) * | 2013-08-20 | 2013-11-20 | 南通国电电站阀门有限公司 | High-temperature and high-pressure stop valve with Y-shaped threaded connection valve body |
| CN105864468A (en) * | 2016-05-19 | 2016-08-17 | 南通国电电站阀门股份有限公司 | Ultra-supercritical tape bypass spherical sealing check valve |
-
2019
- 2019-12-11 CN CN201911265225.9A patent/CN110985715A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5593292A (en) * | 1994-05-04 | 1997-01-14 | Ivey; Ray K. | Valve cage for a rod drawn positive displacement pump |
| CN200949689Y (en) * | 2006-07-31 | 2007-09-19 | 广州聚能生物科技有限公司 | One-way valve with easy changing valve seat |
| CN102878331A (en) * | 2012-10-13 | 2013-01-16 | 南通国电电站阀门有限公司 | Self seal guiding type stop check valve |
| CN103398201A (en) * | 2013-08-20 | 2013-11-20 | 南通国电电站阀门有限公司 | High-temperature and high-pressure stop valve with Y-shaped threaded connection valve body |
| CN105864468A (en) * | 2016-05-19 | 2016-08-17 | 南通国电电站阀门股份有限公司 | Ultra-supercritical tape bypass spherical sealing check valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113588539A (en) * | 2021-09-26 | 2021-11-02 | 南通国电阀门科技有限公司 | Wear-resisting slag discharge valve corrosion resistance detection device |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200410 |