CN205401842U - Y type swing check valve - Google Patents
Y type swing check valve Download PDFInfo
- Publication number
- CN205401842U CN205401842U CN201620189732.4U CN201620189732U CN205401842U CN 205401842 U CN205401842 U CN 205401842U CN 201620189732 U CN201620189732 U CN 201620189732U CN 205401842 U CN205401842 U CN 205401842U
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- valve
- flap
- valve body
- seat
- plastic button
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Abstract
The utility model relates to a Y type swing check valve, including valve body, disk seat, valve clack, valve gap, the valve seat seal face advances the exit channel central line with the valve body and becomes 45 jiaos, mainly that valve clack back system has the connection lug, should connect the lug and articulate on the support by the round pin axle that support fixed mounting has reduced the leakage point on the boss of valve pocket inner wall, sealed off -plate side at the valve clack front end sets up buffer, with the disk seat impact when reducing to close, set up between valve gap and the valve body from sealing device, improve lumen sealing performance. Have close fast, strike when closing little, the noise low, little, the energy consumption low grade advantage of flow resistance when opening. Be applicable to the valve that trade medium pipelines such as oil and natural gas, chemical industry, thermal power prevented the medium refluence.
Description
Technical field
This utility model belongs to valve field, especially with regard to a kind of swing check valve.This utility model is applicable to the valve that the industry medium pipelines such as petroleum gas, chemical industry, thermal power generation prevent medium from flowing backwards.
Background technology
Swing check valve is mostly installed on the medium conveyance conduit of the industries such as petroleum gas, chemical industry, thermal power generation; it is constantly in opening under normal operating conditions, when urgent or orderly shutdown, acts as quick non-return shutoff effect; prevent medium from flowing backwards, protect system equipment safety.Especially at high pressure oxygen, hydrogen and other flammable explosive gas mixture condition, impact the huge heat brought with flow resistance and produce bigger peril, it is easy to accident of blasting；In the urgent protection of power station steam turbine, it is desirable to valve is closed rapidly according to working conditions change, also want that flow resistance is little, close rapidly, impact little, noise is little, the particularly other check-valves of steam turbine, close during shutdown and easily cause blade damage slowly.Impact during common closure of check ring big, noise is big, turn off slowly, flow resistance is big, and the pressure loss is serious, thus increasing energy consumption.
Summary of the invention
The purpose of this utility model is the shortcoming existed for prior art, it is provided that a kind of closing velocity is fast, it is little to impact, noise is low, the Y type swing check valve that during unlatching, flow resistance is little, energy consumption is low.
The technical solution of the utility model includes valve body, valve seat, flap, valve gap, and flap and valve seat have the sealing surface cooperated, and sealing surface of seat imports and exports channel centerline angle at 45 ° with valve body；Mainly the flap back side is shaped with connection lug, and this connection lug is by hinge on support, and support is fixedly mounted on the boss of valve pocket inwall；Sealing surface arranged outside buffer unit in flap front end, this buffer unit is become with buffering groups of springs by plastic button, plastic button and buffer spring are arranged in the axial hole of flap by plug screw, and the front end face of plastic button protrudes from valve clack sealing surface, and the rear end face of plastic button and buffer spring contact；Self-seal device is set between valve gap and valve body, this self-seal device is made up of sealing ring, pendant collet and pressing plate, sealing ring bottom inner round wall is shaped with the taper seat cooperated with valve gap periphery, in the cannelure that pendant collet is inlaid in valve body cavity wall, the upper surface of sealing ring is fitted in the lower anchor ring of pendant collet, pressing plate is fitted in the upper surface of pendant collet, and bolt is threadeded through the through hole on pressing plate with valve gap.
The utility model has the advantages that flap is arranged on the boss of body cavity, decrease leakage point, and buffer unit is set in its front end, reduce when closing and valve seat impact force, self-seal device is set between valve gap and valve body, improve lumen sealing property.Have that closing velocity is fast, impact the features such as little, noise is low, and during unlatching, flow resistance is little, energy consumption is low when closing.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
1 valve body, 2 flaps, 3 bearing pins, 4 boss, 5 supports, 6 screws, 7 valve gaps, 8 sealing rings, 9 pendant collets, 10 pressing plates, 11 bolts, 12 plastic buttons, 13 buffer springs, 14 plug screws.
Detailed description of the invention
Y type swing check valve as shown in Figure 1, including valve body 1, valve seat, flap 2, valve gap 7, valve seat is arranged on valve body 1 and imports and exports between passage, flap 2 and valve seat have the sealing surface cooperated, sealing surface of seat and valve body 1 import and export channel centerline angle at 45 °, namely when valve body 1 is arranged on horizontal pipe, angle at 45 ° between sealing surface of seat and horizontal plane；Flap 2 back side is shaped with connection lug, and this connection lug is hinged on support 5 by bearing pin 3, and support 5 is fixedly mounted on the boss 4 of valve pocket inwall, adopts screw 6 to fixedly mount between support 5 and boss 4；Sealing surface arranged outside buffer unit in flap 2 front end, described flap 2 front end is the other end of flap 2 and support 5 hinged place, this buffer unit is made up of plastic button 12 and buffer spring 13, plastic button 12 and buffer spring 13 are arranged in the axial hole of flap 2 by plug screw 14, the front end face of plastic button 12 protrudes from valve clack sealing surface, the rear end face of plastic button 12 and buffer spring 13 one end contact, pad is installed between buffer spring 13 other end and plug screw 14, before flap 2 contacts with valve seat, first plastic button 12 contacts with valve body 1, reduce the impact force of flap 2 and valve seat, when maximum elastic force when buffer spring 13 compresses is closed less than flap 2 in the horizontal direction gravity 50%；Between valve gap 7 and valve body 1, self-seal device is set, this self-seal device is made up of sealing ring 8, pendant collet 9 and pressing plate 10, sealing ring 8 bottom inner round wall is shaped with the taper seat cooperated with valve gap 7 periphery, pendant collet 9 is inlaid in valve body 1 in the cannelure of cavity wall, the upper surface of sealing ring 8 is fitted in the lower anchor ring of pendant collet 9, pressing plate 10 is fitted in the upper surface of pendant collet 9, bolt 11 is threadeded through the through hole on pressing plate 10 with valve gap 7, valve body 1 lumen pressure medium promotes valve gap 7 to seal with sealing ring 8 wedging, first lumen pressure medium self sealss.
Claims (1)
1. a Y type swing check valve, including valve body (1), valve seat, flap (2), valve gap (7), flap (2) and valve seat have the sealing surface cooperated, and sealing surface of seat imports and exports channel centerline angle at 45 ° with valve body (1)；It is characterized in that flap (2) back side is shaped with connection lug, this connection lug is hinged on support (5) by bearing pin (3), and support (5) is fixedly mounted on the boss (4) of valve pocket inwall；Sealing surface arranged outside buffer unit in flap (2) front end, this buffer unit is made up of plastic button (12) and buffer spring (13), plastic button (12) and buffer spring (13) are arranged in the axial hole of flap (2) by plug screw (14), the front end face of plastic button (12) protrudes from valve clack sealing surface, and the rear end face of plastic button (12) and buffer spring (13) one end contact；Between valve gap (7) and valve body (1), self-seal device is set, this self-seal device is by sealing ring (8), pendant collet (9) and pressing plate (10) composition, sealing ring (8) bottom inner round wall is shaped with the taper seat cooperated with valve gap (7) periphery, pendant collet (9) is inlaid in valve body (1) in the cannelure of cavity wall, the upper surface of sealing ring (8) is fitted in the lower anchor ring of pendant collet (9), pressing plate (10) is fitted in the upper surface of pendant collet (9), bolt (11) is threadeded through the through hole on pressing plate (10) with valve gap (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620189732.4U CN205401842U (en) | 2016-03-10 | 2016-03-10 | Y type swing check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620189732.4U CN205401842U (en) | 2016-03-10 | 2016-03-10 | Y type swing check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205401842U true CN205401842U (en) | 2016-07-27 |
Family
ID=56440323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620189732.4U Active CN205401842U (en) | 2016-03-10 | 2016-03-10 | Y type swing check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205401842U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109751438A (en) * | 2017-11-03 | 2019-05-14 | 中核苏阀科技实业股份有限公司 | Oblique flap valve built in a kind of high pressure |
| CN109764164A (en) * | 2019-01-31 | 2019-05-17 | 苏州纽威阀门股份有限公司 | A kind of oblique flap valve |
-
2016
- 2016-03-10 CN CN201620189732.4U patent/CN205401842U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109751438A (en) * | 2017-11-03 | 2019-05-14 | 中核苏阀科技实业股份有限公司 | Oblique flap valve built in a kind of high pressure |
| CN109764164A (en) * | 2019-01-31 | 2019-05-17 | 苏州纽威阀门股份有限公司 | A kind of oblique flap valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |