CN103542139A - Boiler check valve with drain pipe - Google Patents
Boiler check valve with drain pipe Download PDFInfo
- Publication number
- CN103542139A CN103542139A CN201310515056.6A CN201310515056A CN103542139A CN 103542139 A CN103542139 A CN 103542139A CN 201310515056 A CN201310515056 A CN 201310515056A CN 103542139 A CN103542139 A CN 103542139A
- Authority
- CN
- China
- Prior art keywords
- liquid
- valve
- valve body
- check valve
- boiler check
- 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.)
- Withdrawn
Links
Classifications
-
- 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
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
- F16K1/38—Valve members of conical shape
-
- 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
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/46—Attachment of sealing rings
-
- 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
- F16K15/06—Check valves with guided rigid valve members with guided stems
- F16K15/063—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Check Valves (AREA)
Abstract
The invention relates to a boiler check valve with a drain pipe. Existing check valves applied to industrial boiler water supply all adopt rigidity contact between a copper-made valve clack and a cast-iron valve body for sealing, due to frequent crashes and impacts of the check valves during working, sealing effect is not ideal, leakage appears between working faces, and inconvenience in use is caused. In addition, a certain amount of hazardous liquid is still left between an outlet valve and the check valve, and the hazardous liquid brings personal injury to maintenance workers. A method includes that an action valve clack (2) is mounted in a valve body (1), a liquid outlet is arranged at a position of the valve body corresponding to the action valve clack, the liquid outlet is communicated with a liquid discharge pipeline (3), and a safety valve door (4) is arranged on the liquid discharge pipeline. A sealing groove is arranged at the bottom of the action valve clack, and an elastic sealing gasket (5) is mounted in the sealing ring groove. The boiler check valve is used for a power station boiler supply system.
Description
technical field:
the present invention relates to a kind of boiler check valve with liquid-discharging tube.
background technique:
the existing industrial boiler water-supply safety check that is applied to is all to adopt rigidity between the valve body of copper flap and cast iron contact realization to seal, due to the impact that often bumps in safety check working procedure, cause sealing effect undesirable, make to occur causing leakage phenomenon and use inconvenience between working surface.
in addition; because safety check is widely used in fluid system process; the general exit of pump that is all mounted in is sentenced and is realized protection water pump and suffer the effect of impact of water hammer; but device maintenance need to be closed outlet valve in dangerous fluid application; but between outlet valve and safety check, still retain a certain amount of dangerous liquid, this part liquid can bring personal injury to service worker.
summary of the invention:
the object of this invention is to provide a kind of boiler check valve with liquid-discharging tube.
above-mentioned object realizes by following technological scheme:
a kind of boiler check valve with liquid-discharging tube, its composition comprises: valve body, and installation action flap in described valve body, on described valve body, the position of respective action flap has liquid port, described liquid port is communicated with Drainage pipe, described Drainage pipe mounting safety valve door; Wherein, described flap bottom has seal groove, and elastic sealing gasket is installed in described closure gasket groove.
the described boiler check valve with liquid-discharging tube, described elastic sealing gasket adopts fluorine rubber to make, and the cross section of described elastic sealing gasket is ring or polygonal.
the described boiler check valve with liquid-discharging tube, described action flap is by being arranged on spring compression between guide pin bushing seat and valve body on the sealing surface of valve body.
the described boiler check valve with liquid-discharging tube, described action flap is arranged on valve body by guide pin bushing and guide pin bushing seat.
the described boiler check valve with liquid-discharging tube, described spring is located by the convex shoulder on guide pin bushing and action flap, and by pressing plate, described action flap is pressed on valve body.
the described boiler check valve with liquid-discharging tube, described guide pin bushing is fixed by screws on guide pin bushing seat.
the described boiler check valve with liquid-discharging tube, described action flap bottom also has a circle conical surface, and the described conical surface is positioned at around the outer eaves of described seal groove.
beneficial effect:
1. the present invention is provided with sealing gasket between valve body and flap, and sealing gasket is arranged in the seal groove of flap bottom, and the sealing gasket that is positioned at seal groove is being relied on the conical surface of flap bottom, and the conical surface can play a protective role to sealing gasket again.And sealing gasket is setting-in and is pressed between valve body and flap by pressing plate, the sealability of valve integral body improves greatly like this, has avoided leakage completely.
2. the liquid port that the position of the present invention's respective action flap on valve body is offered has connected Drainage pipe, this is the dangerous liquid between low emission outlet valve and safety check effectively, and it is recovered send out in the situation that not dismantling, and the performance of outlet valve is checked, convenient and strength-saving.Avoid the potential safety hazard in maintenance process, increase work efficiency and the Security of working environment.
accompanying drawing explanation:
accompanying drawing 1 is structural representation of the present invention.
in figure, 1 is valve body, and 2 is action flap, and 3 is Drainage pipe, and 4 is Safety valve, and 5 is elastic sealing gasket, and 6 is guide pin bushing seat, and 7 is spring, and 8 is guide pin bushing, and 9 is pressing plate.
embodiment:
embodiment 1:
a kind of boiler check valve with liquid-discharging tube, its composition comprises: valve body 1, and installation action flap 2 in described valve body, on described valve body, the position of respective action flap has liquid port, described liquid port is communicated with Drainage pipe 3, described Drainage pipe mounting safety valve door 4; Wherein, described action flap bottom has seal groove, and elastic sealing gasket 5 is installed in described closure gasket groove.
embodiment 2:
the boiler check valve with liquid-discharging tube described in embodiment 1, described elastic sealing gasket adopts fluorine rubber to make, and the cross section of described elastic sealing gasket is ring or polygonal.
embodiment 3:
the boiler check valve with liquid-discharging tube described in embodiment 1 or 2, described action flap is pressed on the sealing surface of valve body by the spring 7 being arranged between guide pin bushing seat 6 and valve body.
embodiment 4:
the boiler check valve with liquid-discharging tube described in embodiment 1 or 2, described action flap is arranged on valve body by guide pin bushing 8 and guide pin bushing seat.
embodiment 5:
the boiler check valve with liquid-discharging tube described in embodiment 1 or 2, described spring is located by the convex shoulder on guide pin bushing and action flap, and by pressing plate 9, described action flap is pressed on valve body.
embodiment 6:
the boiler check valve with liquid-discharging tube described in embodiment 1 or 2, described guide pin bushing is fixed by screws on guide pin bushing seat.
embodiment 7:
the boiler check valve with liquid-discharging tube described in embodiment 1 or 2, described action flap bottom also has a circle conical surface, and the described conical surface is positioned at around the outer eaves of described seal groove.
Claims (7)
1. the boiler check valve with liquid-discharging tube, its composition comprises: valve body, is characterized in that: installation action flap in described valve body, and on described valve body, the position of respective action flap has liquid port, described liquid port is communicated with Drainage pipe, described Drainage pipe mounting safety valve door; Wherein, described flap bottom has seal groove, and elastic sealing gasket is installed in described closure gasket groove.
2. the boiler check valve with liquid-discharging tube according to claim 1, is characterized in that: described elastic sealing gasket adopts fluorine rubber to make, and the cross section of described elastic sealing gasket is ring or polygonal.
3. the boiler check valve with liquid-discharging tube according to claim 1 and 2, is characterized in that: described action flap is by being arranged on spring compression between guide pin bushing seat and valve body on the sealing surface of valve body.
4. the boiler check valve with liquid-discharging tube according to claim 1 and 2, is characterized in that: described action flap is arranged on valve body by guide pin bushing and guide pin bushing seat.
5. the boiler check valve with liquid-discharging tube according to claim 1 and 2, is characterized in that: described spring is located by the convex shoulder on guide pin bushing and action flap, and by pressing plate, described action flap is pressed on valve body.
6. the boiler check valve with liquid-discharging tube according to claim 1 and 2, is characterized in that: described guide pin bushing is fixed by screws on guide pin bushing seat.
7. the boiler check valve with liquid-discharging tube according to claim 1 and 2, is characterized in that: described action flap bottom also has a circle conical surface, and the described conical surface is positioned at around the outer eaves of described seal groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310515056.6A CN103542139A (en) | 2013-10-28 | 2013-10-28 | Boiler check valve with drain pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310515056.6A CN103542139A (en) | 2013-10-28 | 2013-10-28 | Boiler check valve with drain pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103542139A true CN103542139A (en) | 2014-01-29 |
Family
ID=49965878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310515056.6A Withdrawn CN103542139A (en) | 2013-10-28 | 2013-10-28 | Boiler check valve with drain pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103542139A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265958A (en) * | 2014-04-21 | 2015-01-07 | 株式会社产经技研 | Stop Valve Structure |
| CN105736388A (en) * | 2016-02-29 | 2016-07-06 | 蒋燕群 | Automatic control type efficient self sucking pump |
| CN105756948A (en) * | 2016-02-29 | 2016-07-13 | 蒋燕群 | Efficient intelligent self-control self-sucking pump |
-
2013
- 2013-10-28 CN CN201310515056.6A patent/CN103542139A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265958A (en) * | 2014-04-21 | 2015-01-07 | 株式会社产经技研 | Stop Valve Structure |
| US9541209B2 (en) | 2014-04-21 | 2017-01-10 | Sankei Giken Co., Ltd. | Structure of check valve |
| CN105736388A (en) * | 2016-02-29 | 2016-07-06 | 蒋燕群 | Automatic control type efficient self sucking pump |
| CN105756948A (en) * | 2016-02-29 | 2016-07-13 | 蒋燕群 | Efficient intelligent self-control self-sucking pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C04 | Withdrawal of patent application after publication (patent law 2001) | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20140129 |