CN202302124U - High-pressure swing check valve - Google Patents
High-pressure swing check valve Download PDFInfo
- Publication number
- CN202302124U CN202302124U CN2011203504100U CN201120350410U CN202302124U CN 202302124 U CN202302124 U CN 202302124U CN 2011203504100 U CN2011203504100 U CN 2011203504100U CN 201120350410 U CN201120350410 U CN 201120350410U CN 202302124 U CN202302124 U CN 202302124U
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- valve
- valve body
- gland
- diameter
- valve disc
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- Expired - Fee Related
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Abstract
The utility model belongs to the field of check valves and particularly relates to a high-pressure swing check valve. The high-pressure swing check valve comprises a valve body with a hollow inner cavity. Both sides of the valve body are provided with a liquid inlet and a liquid outlet respectively. A rocker arm is hinged in the hollow inner cavity of the valve body. The lower end of the rocker arm is provided with a valve clack rotating along with the rocker arm. The valve clack is matched with a sealing surface which is obliquely arranged in the valve body. A gland and a sealing device are sequentially arranged at an opening at the upper side of the valve body from top to bottom in a sealing manner. The sealing device is composed of a valve cap and a high-pressure seal assembly matched with the valve cap. The high-pressure seal assembly consists of a four-piece ring, a spacing ring and a self-sealing ring. When the check valve works under the high pressure working condition, a high-pressure medium applies pressure to the lower bottom surface of a valve disc, the pressure is transferred to the self-sealing ring, the spacing ring and the four-piece ring by the valve disc, and at the time, the self-sealing ring and the spacing ring are deformed, so that the excellent sealing performance is achieved. Meanwhile, due to the combination of the gland and the valve cap, the check valve is ensured to continuously and stably work under the high pressure.
Description
Technical field
The utility model belongs to field of check valves, is specifically related to a kind of high pressure Swing check valve.
Background technique
Safety check is the valve that can stop fluid to flow backwards automatically.The flap of safety check is opened under fluid pressure action, and fluid flows to outlet side from suction side.When suction side pressure was lower than outlet side, flap automatic close preventing fluid under factor effects such as fluid pressure difference, gravity own flow backwards.Safety check generally is divided into several types such as rise-fall type, rotary-open type, butterfly and diaphragm type.
The flap of Swing check valve rotates around the shaft, and it is applicable to the occasion of larger caliber.The sealing configuration of the valve body upside opening of existing Swing check valve is comparatively simple, is difficult to be applicable to the high pressure operating mode, demands urgently improving.
The model utility content
The purpose of the utility model provides a kind of high pressure Swing check valve, this high pressure Swing check valve simple structure, good airproof performance and can be applicable to the high pressure operating mode.
For realizing above-mentioned purpose; The utility model has adopted following technological scheme: a kind of high pressure Swing check valve, comprise the valve body that is provided with hollow cavity, and the both sides of valve body are provided with liquid entering hole and liquid outlet; Be hinged with rocking arm in the hollow cavity of valve body; the lower end of rocking arm is provided with follows the flap that rocking arm rotates, and flap matches with being the skewed sealing surface that is arranged in the valve body, it is characterized in that: the upside opening of said valve body seals successively and is provided with gland and seal arrangement from top to bottom.
The utility model can also be able to further realization through following measure simultaneously:
Described seal arrangement comprises valve gap, and the downside of valve gap is provided with valve disc, and valve disc is arranged on the gland downside, and the internal face of valve disc and valve body upside opening constitutes and to be slidingly matched, and the upside of valve gap is provided with pull bar; One end of said pull bar is fixedly connected with the middle part of valve disc, and the perforate that the other end passes on the gland is stretched out in the valve body outside, and the termination portion that said pull bar stretches out in the valve body outside constitutes screw-thread fit with the nut that is arranged on the gland upside; Described seal arrangement also comprises the high-pressure sealing component that matches with said valve disc.
It is cylindric that the opening of described valve body upside is the different two-segment type of size diameter; Described gland is stepped platen; The larger-diameter platen portion of gland is pressed against valve body upside opening; Gland insert the larger-diameter cylindrical part of side opening on the valve body than the platen portion of minor diameter, and this matches than the external diameter of the platen portion of minor diameter and the internal diameter of larger-diameter cylindrical part, the platen portion than minor diameter of said gland is provided with cavity towards a side of valve disc; Described valve disc is that to be the different two-segment type of size diameter discoid, and the cylindrical part than minor diameter of side opening constitutes and is slidingly matched on the larger-diameter round plate of valve disc and the valve body; The round plate and the constituting than the cavity in the minor diameter platen portion of gland than minor diameter of valve disc are slidingly matched; Said high-pressure sealing component is folded between the larger-diameter round plate than the platen portion of minor diameter and valve disc of gland.
Described high-pressure sealing component comprises the pendant collet that is pressed against together, circle and selfsealings circle from top to bottom, described circle and selfsealings circle chuck valve disc than the round plate of minor diameter and valve body between the cylindrical part than minor diameter of side opening; Described pendant collet be set in valve disc than the round plate of the minor diameter outside, and pendant collet is embedded the groove between the two-segment type cylinder of side opening on the valve body, the lower end surface than minor diameter platen portion of the upper-end surface of pendant collet and gland is abutted together.
Two different joints of the size diameter of said valve disc are provided with reducing portion between the round plates, and the bottom of said selfsealings circle is wedge shape and is embedded the reducing portion place at valve disc.
The beneficial effect of the utility model is: the utility model the upside opening of valve body from top to bottom successively envelope be provided with gland and seal arrangement; Described seal arrangement is made up of valve gap and the high-pressure sealing component that matches with valve gap, and high-pressure sealing component is made up of the pendant collet, a circle and the selfsealings circle that are pressed against from top to bottom together.Then be operated in high pressure operating mode following time when safety check; High-pressure medium brings pressure to bear on the bottom surface of valve disc; To selfsealings circle, circle and pendant collet, this moment, deformation took place to valve disc in a selfsealings circle and a circle, thereby had realized excellent sealing performance with propagation of pressure; Combine gland and valve gap simultaneously, guaranteed the work that safety check under high pressure can be continual and steady.
Description of drawings
Fig. 1 is the structural representation of the utility model.
The implication of mark is following among the figure:
The sealing surface 3-flap 4-rocking arm of 1-valve body 2-valve body
Enclose between 9-gland 10-valve gap 11-selfsealings circle 12-
13-pendant collet 16-valve disc 17-pull bar 18-nut
The reducing portion of 19-valve disc
Embodiment
As shown in Figure 1; A kind of high pressure Swing check valve comprises the valve body 1 that is provided with hollow cavity, and the both sides of valve body 1 are provided with liquid entering hole and liquid outlet; Be hinged with Rocker arm 4 in the hollow cavity of valve body 1; lower end of Rocker arm 4 is provided with follows the flap 3 that Rocker arm 4 rotates, and flap 3 matches with being the skewed sealing surface 2 that is arranged in the valve body 1, and the upside opening of said valve body 1 seals successively and is provided with gland 9 and seal arrangement from top to bottom.
As the preferred version of the utility model, as shown in Figure 1, described seal arrangement comprises valve gap 10; The downside of valve gap 10 is provided with valve disc 16; Valve disc 16 is arranged on gland 9 downsides, and the internal face of valve disc 16 and valve body 1 upside opening constitutes and be slidingly matched, and the upside of valve gap 10 is provided with pull bar 17; One end of said pull bar 17 is fixedly connected with the middle part of valve disc 16, and the perforate that the other end passes on the gland 9 is stretched out in valve body 1 outside, and the termination portion that said pull bar 17 stretches out in valve body 1 outside constitutes screw-thread fit with the nut that is arranged on gland 9 upsides 18; Described seal arrangement also comprises the high-pressure sealing component that matches with said valve disc 16.
Further; It is cylindric that the opening of described valve body 1 upside is the different two-segment type of size diameter; Described gland 9 is stepped platen; The larger-diameter platen portion of gland 9 is pressed against valve body 1 upside opening; Gland 9 insert the larger-diameter cylindrical part of side opening on the valve body 1 than the platen portion of minor diameter, and this matches than the external diameter of the platen portion of minor diameter and the internal diameter of larger-diameter cylindrical part, the platen portion than minor diameter of said gland 9 is provided with cavity towards a side of valve disc 16; Described valve disc 16 is discoid for being the different two-segment type of size diameter, and the cylindrical part formation than minor diameter of side opening is slidingly matched on the larger-diameter round plate of valve disc 16 and the valve body 1; The round plate and the constituting than the cavity in the minor diameter platen portion of gland 9 than minor diameter of valve disc 16 are slidingly matched; Said high-pressure sealing component is folded between the larger-diameter round plate than the platen portion of minor diameter and valve disc 16 of gland 9.
Because it is cylindric that the opening of valve body 1 upside is the different two-segment type of size diameter; Therefore the clamping that the larger-diameter cylindrical part of side opening is convenient to gland 9 on the valve body 1 is installed; The cylindrical part than minor diameter of side opening then is convenient to match with the larger-diameter round plate of valve disc 16 on the valve body 1; And high-pressure sealing component is arranged between the larger-diameter round plate than the platen portion of minor diameter and valve disc 16 of gland 9; Avoided high-pressure sealing component to receive the direct impact of high-pressure medium, guaranteed that high-pressure sealing component can bring into play its sealing function normally.
Preferred version as the utility model; As shown in Figure 1; Described high-pressure sealing component comprises the pendant collet 13 that is pressed against together, circle 12 and selfsealings circle 11 from top to bottom, described circle 12 and selfsealings circle 11 chucks valve disc 16 than the round plate of minor diameter and valve body 1 between the cylindrical part than minor diameter of side opening; Described pendant collet 13 is set in the round plate outside than minor diameter of valve disc 16; And pendant collet 13 is embedded the groove between the two-segment type cylinder of side opening on the valve body 1, and the lower end surface than minor diameter platen portion of the upper-end surface of pendant collet 13 and gland 9 is abutted together.
Why the seal ring that described pendant collet 13 also promptly is made up of four 1/4th identical ring bodies is divided into four ring bodies, is comparatively efficient and convenient in order to install, and operator also can be chosen as six open loops or octavo ring certainly.11 main deformation with itself of described circle 12 and selfsealings circle realize sealing effect.
Further, two different joints of the size diameter of said valve disc 16 are provided with reducing portion 19 between the round plates, and the bottom of said selfsealings circle 11 is wedge shape and is embedded reducing portion 19 places at valve disc 16.
Reducing portion 19 is provided with, and circle 12 combines more closely with valve disc 16 with selfsealings circle 11 under the high pressure operating mode between making, has more effectively guaranteed the sealing effect of safety check.
Claims (5)
1. high pressure Swing check valve; Comprise the valve body (1) that is provided with hollow cavity; The both sides of valve body (1) are provided with liquid entering hole and liquid outlet, are hinged with rocking arm (4) in the hollow cavity of valve body (1), and the lower end of rocking arm (4) is provided with follows the flap (3) that rocking arm (4) rotates; Flap (3) matches with being the skewed sealing surface (2) that is arranged in the valve body (1), it is characterized in that: the upside opening of said valve body (1) seals successively from top to bottom and is provided with gland (9) and seal arrangement.
2. high pressure Swing check valve according to claim 1; It is characterized in that: described seal arrangement comprises valve gap (10); The downside of valve gap (10) is provided with valve disc (16); Valve disc (16) is arranged on gland (9) downside, and the internal face of valve disc (16) and valve body (1) upside opening constitutes and be slidingly matched, and the upside of valve gap (10) is provided with pull bar (17); One end of said pull bar (17) is fixedly connected with the middle part of valve disc (16); The perforate that the other end passes on the gland (9) is stretched out in valve body (1) outside, and the termination portion that said pull bar (17) stretches out in valve body (1) outside constitutes screw-thread fit with the nut (18) that is arranged on gland (9) upside; Described seal arrangement also comprises the high-pressure sealing component that matches with said valve disc (16).
3. high pressure Swing check valve according to claim 2; It is characterized in that: it is cylindric that the opening of described valve body (1) upside is the different two-segment type of size diameter; Described gland (9) is stepped platen; The larger-diameter platen portion of gland (9) is pressed against valve body (1) upside opening; Gland (9) insert the larger-diameter cylindrical part that valve body (1) is gone up side opening than the platen portion of minor diameter, and this matches than the external diameter of the platen portion of minor diameter and the internal diameter of larger-diameter cylindrical part, the platen portion than minor diameter of said gland (9) is provided with cavity towards a side of valve disc (16); Described valve disc (16) is discoid for being the different two-segment type of size diameter, and the cylindrical part formation than minor diameter that the larger-diameter round plate of valve disc (16) and valve body (1) are gone up side opening is slidingly matched; The round plate and the constituting than the cavity in the minor diameter platen portion of gland (9) than minor diameter of valve disc (16) are slidingly matched; Said high-pressure sealing component is folded between the larger-diameter round plate than the platen portion of minor diameter and valve disc (16) of gland (9).
4. high pressure Swing check valve according to claim 3; It is characterized in that: described high-pressure sealing component comprises pendant collet (13), circle (12) and the selfsealings circle (11) that is pressed against together from top to bottom, and described circle (12) and selfsealings circle (11) chuck are gone up between the cylindrical part than minor diameter of side opening at the round plate and the valve body (1) than minor diameter of valve disc (16); Described pendant collet (13) is set in the round plate outside than minor diameter of valve disc (16); And pendant collet (13) is embedded the groove between the two-segment type cylinder of the last side opening of valve body (1), and the lower end surface than minor diameter platen portion of the upper-end surface of pendant collet (13) and gland (9) is abutted together.
5. high pressure Swing check valve according to claim 4; It is characterized in that: two different joints of the size diameter of said valve disc (16) are provided with reducing portion (19) between the round plates, and the bottom of said selfsealings circle (11) is wedge shape and is embedded the reducing portion place at valve disc (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203504100U CN202302124U (en) | 2011-08-13 | 2011-08-13 | High-pressure swing check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203504100U CN202302124U (en) | 2011-08-13 | 2011-08-13 | High-pressure swing check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202302124U true CN202302124U (en) | 2012-07-04 |
Family
ID=46371020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203504100U Expired - Fee Related CN202302124U (en) | 2011-08-13 | 2011-08-13 | High-pressure swing check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202302124U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103411003A (en) * | 2013-08-07 | 2013-11-27 | 兰州高压阀门有限公司 | High-pressure, high-alloy and large-diameter hydrocracking check valve and casting technology thereof |
| CN104197051A (en) * | 2014-09-26 | 2014-12-10 | 上海沪东造船阀门有限公司 | Ultralow temperature flange-type stainless steel swing check valve for liquefied natural gas ship |
-
2011
- 2011-08-13 CN CN2011203504100U patent/CN202302124U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103411003A (en) * | 2013-08-07 | 2013-11-27 | 兰州高压阀门有限公司 | High-pressure, high-alloy and large-diameter hydrocracking check valve and casting technology thereof |
| CN103411003B (en) * | 2013-08-07 | 2016-02-17 | 兰州高压阀门有限公司 | Hydrocracking high pressure, high alloy, heavy caliber safety check and casting technique thereof |
| CN104197051A (en) * | 2014-09-26 | 2014-12-10 | 上海沪东造船阀门有限公司 | Ultralow temperature flange-type stainless steel swing check valve for liquefied natural gas ship |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20140813 |
|
| EXPY | Termination of patent right or utility model |