CN201155601Y - Unidirectional stop type automatic air discharging valve - Google Patents
Unidirectional stop type automatic air discharging valve Download PDFInfo
- Publication number
- CN201155601Y CN201155601Y CNU2007200939960U CN200720093996U CN201155601Y CN 201155601 Y CN201155601 Y CN 201155601Y CN U2007200939960 U CNU2007200939960 U CN U2007200939960U CN 200720093996 U CN200720093996 U CN 200720093996U CN 201155601 Y CN201155601 Y CN 201155601Y
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- China
- Prior art keywords
- central shaft
- valve
- air
- pipeline
- valve body
- 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.)
- Expired - Fee Related
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- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Abstract
The utility model provides a one-way non-return type automatic exhaust steam valve arranged in a heating system pipeline end or a position in which freezing air condensates easily. In the utility model, the spacing bracket and the spacer sleeve of a central shaft are respectively arranged in the air inlet and the air outlet of a valve body; the central shaft is arranged in the valve body; a floating body is fixed on the central shaft; moving valve plugs consisting of a packing plate are respectively arranged on the central shaft and a link block on the top of the central shaft. The automatic exhaust steam valve is capable of not only discharging cold air in the valve in time and being closed automatically for reliable air discharge and water stop when the hot water reaches and after the cold air is discharged; and the air inlet also can be closed quickly under the action of the gravity of the valve plug and the packing plate to prevent the cold air from entering into the pipeline when the pressure is reduced in the pipeline. By utilizing the one-way non-return characteristic of the valve, water level depression and even water emptying in the pipeline and the heating pipeline can be avoided effectively so as to guarantee the reliability of the heat supply of the heating system. The one-way non-return type automatic exhaust steam valve has also the advantages of rational structure, flexible control, reliable performance, stable running, economy, practicability,easy popularization, etc.
Description
Technical field
The utility model relates to the easily automatic exhaust device of cohesion place installation of heating system duct end or cool air.
Background technique
In the pipeline of hot-water heating heating system, the time regular meeting produce cool air, if cool air can not in time be discharged, it will stop thermodynamic cycle, directly influence heating effect.Duct end or cool air in heating system all is equipped with automatic control pressure vent in the place of cohesion easily for this reason.This valve can in time be discharged cool air when meeting cool air, discharges when cool air and closes automatically again when back hot water arrives, to reach the purpose of exhaust sealing.Guarantee the reliability of heating system heat supply.The automatic control pressure vent of domestic present use is various in style, mainly is to be made of the stylus structure that is provided with ball float and link rod in the housing.Though the automatic control pressure vent of this structure has been brought into play active and effective effect in the hot-water heating heating system, but because the air intake of this valve does not have seal arrangement, in being interrupted the heating system of air feed when stopping air feed, when just manifold pressure reduces, this valve air gate can be opened automatically, cool air just can be along with air intake enters in the pipeline, under the pressure of air, certainly will cause drawdown even emptying in pipeline and even the heating installation, and in next time again during air feed, can air feed after must earlier the cool air in pipeline and the heating installation being discharged again.Directly influence heating effect.
Summary of the invention
The purpose of this utility model is for a kind of unidirectional reverse-stop type automatic control pressure vent is provided, in order to solve that outlet valve in the present hot-water heating heating system exists when manifold pressure reduces, cool air enters pipeline from air intake, cause drawdown even emptying in pipeline and even the heating installation, influence the problem of heating effect.
The utility model will take following technical measures to realize: this automatic control pressure vent comprises the valve body of being made up of upper half-shell, housing lower half, seal ring, clamping bolt, air intake on the valve body, relief opening, also comprise buoyancy aid, central shaft, sealing gasket, air-water separation net, nut, metallic shim and contiguous block, it is to take to be provided with respectively in valve body air intake, relief opening central shaft limiting bracket and spacing interstage sleeve, in valve body, establish by being fixed with buoyancy aid on central shaft, the central shaft, the moving valve core that sealing gasket is formed is set respectively on central shaft and top contiguous block thereof.
Because this automatic control pressure vent is provided with described structure, compares with existing other automatic control pressure vent, not only when meeting cool air, put set through hole cool air is in time discharged through limiting block, discharge when cool air and close reliable exhaust sealing when back hot water arrives automatically.And when manifold pressure reduces, can be under spool action of gravity and sealing gasket effect, rapidly with the air intake shutoff, make cool air can't enter in the pipeline, utilize its distinctive unidirectional check characteristic, effectively avoid drawdown even emptying in pipeline and the heating installation, guarantee the reliability of heating system heat supply.Moreover, this outlet valve also has rational in infrastructure, advantages such as control is flexible, reliable performance, stable, economical and practical, suitable popularization.
Description of drawings
Fig. 1 is the structural representation of unidirectional reverse-stop type automatic control pressure vent.1-upper half-shell, 2-housing lower half, 3-seal ring, 4-bolt, 5-air intake, 6-relief opening, 7-limiting bracket, the spacing interstage sleeve of 8-, 9-radial direction through hole, 10-air-water separation net, 11-central shaft, 12-sealing gasket, 13-metallic shim, 14-nut, 15-contiguous block, 16-buoyancy aid, 17-sealing gasket, 18-sealing gasket, 19-metallic shim, 20-nut, 21-nut, 22-sealing gasket, 23-nut among Fig. 1.
Embodiment
Unidirectional reverse-stop type automatic control pressure vent among Fig. 1 is a kind of novel exhaust valve that designs on the prior art basis.Valve body is formed by upper half-shell 1, housing lower half 2 in the outside of valve.It is fixing through bolt 4 to be provided with seal ring 3 between upper and lower half housing 1,2.The bottom of valve body is an air intake 5, and top is relief opening 6, is respectively equipped with central shaft limiting bracket 7 and spacing interstage sleeve 8 in air intake 5, relief opening 6, and limiting bracket 7 is individual supports that link with the air intake passage and be provided with the central shaft corresponding aperture.And spacing interstage sleeve 8 is individual and relief opening 6 connects, and interior is the sleeve of limiting block, is provided with through hole 9 on sleeve, also is provided with air-water separation net 10 in the outside of sleeve.Spacing interstage sleeve 8 can constitute with relief opening 6 one, also can be made into split type again through being threaded.And be fixed on valve body top through sealing gasket 22 and nut 23.The center is provided with a central shaft 11 in valve body, on the central shaft 11 through the fixing buoyancy aid 16 of sealing gasket 12, metallic shim 13, nut 14 and contiguous block 15, (being corresponding air intake 5, relief opening 6 positions) is respectively equipped with sealing gasket 18,17 on central shaft 11 and top contiguous block 15 thereof, and the centre bulge of sealing gasket 17 places in the contiguous block 15 and is fixedly clamped.Sealing gasket 18 is connected and fixed the common moving valve core of forming by metallic shim 19, nut 20,21.This spool can move up and down along the valve body symmetry center between limiting bracket 7 and spacing interstage sleeve 8.During this valve work, as meet cool air, when the pressure of cool air surpasses the spool deadweight, spool is along moving on the valve body symmetry center, sealing gasket 18 break away from air intakes 5 make cool air from buoyancy aid 16 outsides to air-water separation net 10, pass air-water separation net 10 and enter in the spacing interstage sleeve 8, through relief opening 6 cool air is discharged again from through hole 9.When cool air was discharged back hot water arrival, under the big pressure effect, sealing gasket 17 was closed relief opening 6 shutoff rapidly automatically in pipe, reliable exhaust sealing.If when manifold pressure reduces, move down at the action of gravity lower valve core, sealing gasket 18 reliably ends air intake 5 shutoff rapidly.Cool air can't be entered in the pipeline, thereby effectively avoid drawdown even emptying in pipeline and the heating installation, guarantee the reliability of heating system heat supply.
Claims (3)
1, a kind of unidirectional reverse-stop type automatic control pressure vent, comprise by upper half-shell (1), housing lower half (2) seal ring (3), the valve body that bolt (4) is formed, air intake on the valve body (5), relief opening (6), also comprise buoyancy aid (16), central shaft (11), sealing gasket (12,17,18,22), air-water separation net (10), nut (14,20,21,23), metallic shim (13,19) and contiguous block (15), it is characterized in that: at the valve body air intake, be respectively equipped with central shaft limiting bracket (7) in the relief opening, spacing interstage sleeve (8), in valve body, be provided with by central shaft (11), be fixed with buoyancy aid (16) on the central shaft (11), on central shaft (11) and top contiguous block (15) thereof, be respectively equipped with sealing gasket (18,17) moving valve core of Zu Chenging.
2, unidirectional reverse-stop type automatic control pressure vent according to claim 1 is characterized in that: limiting bracket (7) is the individual support that links with air intake (5) passage and be provided with the central shaft corresponding aperture.
3, unidirectional reverse-stop type automatic control pressure vent according to claim 1, it is characterized in that: spacing interstage sleeve (8) is individual and relief opening (6) connects, interior is the sleeve of limiting block, on sleeve, be provided with through hole (9), also be provided with air-water separation net (10) in the outside of sleeve, described spacing interstage sleeve (8) can be made integral type or split-type structural with relief opening (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200939960U CN201155601Y (en) | 2007-06-25 | 2007-06-25 | Unidirectional stop type automatic air discharging valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200939960U CN201155601Y (en) | 2007-06-25 | 2007-06-25 | Unidirectional stop type automatic air discharging valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201155601Y true CN201155601Y (en) | 2008-11-26 |
Family
ID=40103384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200939960U Expired - Fee Related CN201155601Y (en) | 2007-06-25 | 2007-06-25 | Unidirectional stop type automatic air discharging valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201155601Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485411A (en) * | 2016-01-20 | 2016-04-13 | 吉林大学 | Automatic floating ball type vacuum liquid level controller |
| CN109506032A (en) * | 2019-01-09 | 2019-03-22 | 任丘市瑞华星水暖器材有限公司 | A kind of floating ball of exhaust valve |
-
2007
- 2007-06-25 CN CNU2007200939960U patent/CN201155601Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485411A (en) * | 2016-01-20 | 2016-04-13 | 吉林大学 | Automatic floating ball type vacuum liquid level controller |
| CN105485411B (en) * | 2016-01-20 | 2017-12-12 | 吉林大学 | Float-ball type vacuum liquid level self-controller |
| CN109506032A (en) * | 2019-01-09 | 2019-03-22 | 任丘市瑞华星水暖器材有限公司 | A kind of floating ball of exhaust valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Jiang Hong Document name: Notification of Termination of Patent Right |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081126 Termination date: 20090727 |