CN103591368A - Anti-return-air automatic exhaust valve - Google Patents
Anti-return-air automatic exhaust valve Download PDFInfo
- Publication number
- CN103591368A CN103591368A CN201310486850.2A CN201310486850A CN103591368A CN 103591368 A CN103591368 A CN 103591368A CN 201310486850 A CN201310486850 A CN 201310486850A CN 103591368 A CN103591368 A CN 103591368A
- Authority
- CN
- China
- Prior art keywords
- vent
- thimble
- bonnet
- valve body
- ejector pin
- 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.)
- Pending
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/18—Actuating devices; Operating means; Releasing devices actuated by fluid actuated by a float
- F16K31/20—Actuating devices; Operating means; Releasing devices actuated by fluid actuated by a float actuating a lift valve
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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
- F16K15/06—Check valves with guided rigid valve members with guided stems
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Valve Housings (AREA)
Abstract
The invention relates to an anti-return-air automatic exhaust valve. A valve body and a bonnet in the anti-return-air automatic exhaust valve are integrally connected in a threaded manner. The lower end of the valve body is connected with a pipe joint connected with a system. The bonnet is provided with an upper cover and an exhaust hole. The float ball changing the position with water level is disposed inside the valve body and connected with a lower ejector pin and an upper ejector pin through a connecting rod. A soft rubber pad is fixed to the upper and lower ejector pins. The upper and lower end faces of a central vent of the bonnet are also made in cone shapes, so that sealing of upper ejector pin and the lower ejector pin is facilitated. The upper and lower ejector pins are mounted above and below the vent. The space between the valve body and the bonnet is sealed through a seal gasket. Two sides of the vent are both made in cone shapes, so that the vent can be closed with the ejector pins conveniently. The upper ejector pin is connected with the connecting rod in a threaded manner, so that spacing between the upper ejector pin and the vent can be adjusted. The anti-return-air automatic exhaust valve exhausts smoothly and is fine in sealing performance, long in service life, and flexible to open and close.
Description
Technical field
The present invention relates to for warm air-conditioning system technical field.The suitable eminence that is installed on building hot water system or air-conditioning system, the gas in automatic removal system, and stop ambient air to enter system.
Background technique
In prior art, a kind of basic mode of automatic control pressure vent is, valve inner is equipped with the venting gas appliance connecting together with ball float, and when outlet valve upper-part centralized is deposited gas, ball float declines with water level, drives venting gas appliance to open exhaust port exhaust.After exhaust finishes, in valve, water level rises, and ball float drives lifting exhaust valve closure on venting gas appliance.But due to sealing and transmission reason, not exhaust often occurs, relief opening can not be closed and be leaked, and during system dehydration negative pressure, atmosphere enters in system through outlet valve, cause that water supply is smooth, flood, dehydration seriously, the harm such as corrosive pipeline.
Summary of the invention
For problem set forth above, the object of this invention is to provide a kind of small volume, reliable in function, prevent the anti feedback automatic control pressure vent of suck-back air, object is to solve the defect of original automatic control pressure vent, improves system effectiveness, reaches energy-saving effect.
Technological scheme: the present invention is achieved through the following technical solutions:
This anti feedback automatic control pressure vent, main structure is to be threaded connection and to be integrated by valve body 1 and bonnet 2.The lower end of valve body 1 is connected with the interface tube 5 being connected with system, and bonnet 2 is equipped with upper cover 3 and relief opening 4; Valve inner has can be with the ball float 6 of SEA LEVEL VARIATION position, and ball float 6 is connected with lower thimble 7 and upper thimble 9 by connecting rod 8; On lower thimble 7 and upper thimble 9, be fixed with flexible rubber pad, taper is also made in the vent upper and lower end face at bonnet 2 centers, is convenient to and upper thimble 9 and 7 sealings of lower thimble.Lower thimble 7 and upper thimble 9 are installed on respectively the upper and lower both sides of vent; Between valve body 1 and bonnet 2, by sealing gasket 10, seal.Its special way is there are two thimbles the both sides of vent, play thimble 7 and upper thimble 9; Taper is all made in vent both sides, is convenient to thimble airtight; Upper thimble 9 is connected with connecting rod 8 by engage thread, the spacing of adjustable thimble between vent.
The advantage of anti feedback automatic control pressure vent of the present invention is:
(1) simple in structure, movable part is few, and rate of breakdown is low, long service life.
(2) can effectively prevent return-air, reduce fluid loss, alleviate pipeline, equipment oxygen corrosion.
(3) valve body interface needs tight place all to carry seal washer, can guarantee assembling quality and airtight performance.
(4) reliable operation, volume is little, and not air inlet during negative pressure can be widely used in the liquid system without specific (special) requirements.
Accompanying drawing explanation
Fig. 1 is the structural representation of anti feedback automatic control pressure vent.
Embodiment
The present invention in use, its interface tube 5 is connected with the peak of heating or air-conditioner water system, while there is no gas in system, in valve body 1, there is water to enter and ball float 6 is floated, drive comprises together with the float mechanism of lower thimble 7 and upper thimble 9 and connecting rod 8 rises, and lower thimble 7 withstands the vent downside at bonnet 2 centers, owing to being fixed with flexible rubber pad on lower thimble 7, coordinate with the vent of taper, played reliable airtight effect.While isolating gas in system, air accumulation, in exhaust valve 1, declines the interior water level of valve body 1 and float mechanism, and lower thimble 7 departs from vent, opens vent, and gas drains in atmosphere through relief opening 4 by vent.When negative pressure Shi， float mechanism appears in system, fall, upper thimble 9 falls into the upside of vent, because upper thimble 9 is fixed with flexible rubber pad above, under the effect of gravity and atmospheric pressure, vent can be sealed, atmosphere is isolated, prevents that air from entering system from the present invention.Like this, the present invention has played the effect of reliable exhaust, can prevent that again atmosphere from entering system, has effectively controlled the fluid loss of system, has alleviated the corrosion of air to pipe-line system and equipment.
Claims (2)
1. an anti feedback automatic control pressure vent, is characterized in that: by valve body (1) and bonnet (2), be threaded connection and be integrated, the lower end of valve body (1) is connected with the interface tube (5) being connected with system, and bonnet (2) is equipped with upper cover (3) and relief opening (4); Valve inner has can be with the ball float (6) of SEA LEVEL VARIATION position, and ball float (6) is connected with lower thimble (7) and upper thimble (9) by connecting rod (8); On lower thimble (7) and upper thimble (9), be fixed with flexible rubber pad, taper is also made in the vent upper and lower end face at bonnet (2) center, be convenient to and upper thimble (9) and lower thimble (7) sealing, lower thimble (7) and upper thimble (9) are installed on respectively the upper and lower both sides of vent; Between valve body (1) and bonnet (2), by sealing gasket (10), seal.
2. anti feedback automatic control pressure vent according to claim 1, is characterized in that: taper is all made in vent both sides, is convenient to thimble airtight; Upper thimble (9) is connected with connecting rod (8) by engage thread, the spacing of adjustable thimble between vent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310486850.2A CN103591368A (en) | 2013-10-17 | 2013-10-17 | Anti-return-air automatic exhaust valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310486850.2A CN103591368A (en) | 2013-10-17 | 2013-10-17 | Anti-return-air automatic exhaust valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103591368A true CN103591368A (en) | 2014-02-19 |
Family
ID=50081613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310486850.2A Pending CN103591368A (en) | 2013-10-17 | 2013-10-17 | Anti-return-air automatic exhaust valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103591368A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104026526A (en) * | 2014-05-23 | 2014-09-10 | 徐正昌 | Negative pressure type dual-purpose pool for pickles and sauce pickles |
| CN106352152A (en) * | 2016-11-03 | 2017-01-25 | 常州港华燃气有限公司 | Water check valve of gas pipeline |
| CN111043439A (en) * | 2019-12-05 | 2020-04-21 | 福建鑫远建工有限公司 | Exhaust device of water supply pipeline |
| GB2586247A (en) * | 2019-08-13 | 2021-02-17 | Edwards Ltd | Non-return check valve for vacuum system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03163279A (en) * | 1989-11-20 | 1991-07-15 | Kubota Corp | Sealing structure of air valve |
| JPH0492172A (en) * | 1990-08-03 | 1992-03-25 | Kubota Corp | Float fitting structure of air valve |
| CN2278134Y (en) * | 1996-06-21 | 1998-04-08 | 王时正 | Pressure intensity balance type water level valve for roof water tank |
| CN2325711Y (en) * | 1998-06-05 | 1999-06-23 | 安学茂 | Automatic inlet/outlet air valve for double floatation hot water boiler |
| CN201206646Y (en) * | 2008-06-06 | 2009-03-11 | 宝山钢铁股份有限公司 | Water-level control apparatus of gas pipeline water-sealed valve |
-
2013
- 2013-10-17 CN CN201310486850.2A patent/CN103591368A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03163279A (en) * | 1989-11-20 | 1991-07-15 | Kubota Corp | Sealing structure of air valve |
| JPH0492172A (en) * | 1990-08-03 | 1992-03-25 | Kubota Corp | Float fitting structure of air valve |
| CN2278134Y (en) * | 1996-06-21 | 1998-04-08 | 王时正 | Pressure intensity balance type water level valve for roof water tank |
| CN2325711Y (en) * | 1998-06-05 | 1999-06-23 | 安学茂 | Automatic inlet/outlet air valve for double floatation hot water boiler |
| CN201206646Y (en) * | 2008-06-06 | 2009-03-11 | 宝山钢铁股份有限公司 | Water-level control apparatus of gas pipeline water-sealed valve |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104026526A (en) * | 2014-05-23 | 2014-09-10 | 徐正昌 | Negative pressure type dual-purpose pool for pickles and sauce pickles |
| CN106352152A (en) * | 2016-11-03 | 2017-01-25 | 常州港华燃气有限公司 | Water check valve of gas pipeline |
| GB2586247A (en) * | 2019-08-13 | 2021-02-17 | Edwards Ltd | Non-return check valve for vacuum system |
| CN111043439A (en) * | 2019-12-05 | 2020-04-21 | 福建鑫远建工有限公司 | Exhaust device of water supply pipeline |
| CN111043439B (en) * | 2019-12-05 | 2020-12-01 | 福建鑫远建工有限公司 | Exhaust device of water supply pipeline |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | 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 |
Application publication date: 20140219 |
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| RJ01 | Rejection of invention patent application after publication |