CN202691192U - Combined type exhaust valve - Google Patents
Combined type exhaust valve Download PDFInfo
- Publication number
- CN202691192U CN202691192U CN 201220345745 CN201220345745U CN202691192U CN 202691192 U CN202691192 U CN 202691192U CN 201220345745 CN201220345745 CN 201220345745 CN 201220345745 U CN201220345745 U CN 201220345745U CN 202691192 U CN202691192 U CN 202691192U
- Authority
- CN
- China
- Prior art keywords
- valve
- sealing
- valve gap
- relief opening
- 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
Links
- 238000007789 sealing Methods 0.000 claims abstract description 71
- 239000002131 composite material Substances 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 19
- 238000010587 phase diagram Methods 0.000 description 5
- 238000007872 degassing Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
Images
Landscapes
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Abstract
The utility model relates to the technical field of valves, in particular to a combined type exhaust valve which is simple in structure, can buffer airflow during exhausting, cannot cause gas blockage, has a good exhausting effect, can ensure the safety of a water conveying pipeline and is long in service life. The combined type exhaust valve comprises a valve body, a valve cover, a floater and a sealing pair which is arranged on a valve cover flow channel, wherein a valve body air inlet is formed on the valve body; a valve cover air outlet is formed on the valve cover; a sealed buffer platform is arranged between the floater and the sealing pair, and comprises a platform body, a sealing cover which is in opening-closing connection with the sealing pair, and a guide rod; a sealed buffer platform air outlet which is communicated with the valve cover air outlet, and a sealed buffer platform air inlet which is communicated with the valve body air inlet are formed on the platform body; the sealing cover penetrates through the platform body; one end of the guide rod is fixedly connected to the platform body, and the other end of the guide rod extends upwards and can be arranged in the valve cover air outlet in an up-down slippage mode; and a sealing seat which is in opening-closing connection with the sealed buffer platform air inlet is arranged on the floater.
Description
Technical field
The utility model relates to valve technology field, relates in particular to a kind of composite exhaust valve that prevents that the stifled phenomenon of gas from producing.
Background technique
The height point place that outlet valve mainly is installed in aqueduct is used for having arranged ducted gas, when on the waterline gas overflowing being arranged, gas can be climb along pipeline and be entered the top that the outlet valve valve pocket is gathered in outlet valve, along with increasing of gas in the valve, pressure rise, when gas pressure during greater than system pressure, gas can make that the water surface descends in the chamber, float descends with water level, opens relief opening; After gas drained, water level rose, and floating drum also rises thereupon, closes relief opening.Same reason produces negative pressure in system, the water surface descends in the valve pocket, and Exhaust Open because this moment, external atmosphere pressure force rate system pressure was large, so atmosphere can enter system by relief opening, prevents the harm of negative pressure.
Existing outlet valve generally comprises the valve body that is vertically to runner, be located at the valve gap on the valve body, be located at float in the valve body, described valve gap is provided with relief opening, and the runner hole wall of valve gap is provided with the sealing pair that is connected with the float folding, and it is executive component that above-mentioned outlet valve directly adopts float, very fast owing to gas flow rate when starting water pump, float easily is stuck on the sealing pair of valve gap runner hole wall when rising, thereby forms the stifled phenomenon of gas, affects degassing function.
Summary of the invention
Therefore, for above-mentioned problem, available buffer air-flow when the utility model proposes a kind of simple in structure, exhaust, gas stifled phenomenon, good exhaust effect can not occur, can ensure the composite exhaust valve of waterline safety, long service life.
For achieving the above object, the utility model has adopted following technological scheme: a kind of composite exhaust valve, comprise valve body, valve gap, float and be located at sealing pair on the valve gap runner, described valve body is provided with the valve body suction port, described valve gap is provided with the valve gap relief opening, also be provided with the sealing buffer table between described float and the sealing pair, described sealing buffer table comprises stage body, the sealing cover that is connected with the sealing pair folding, guide rod, described stage body is provided with the sealing buffer table relief opening that is communicated with the valve gap relief opening, the sealing buffer table suction port that is communicated with the valve body suction port, described sealing cover is arranged on the stage body, described guide rod one end is fixed on the stage body, the other end extends upward and can be located at slippingly up and down in the valve gap relief opening, and described float is provided with and the sealing seat that seals the folding of buffer table suction port and be connected.
Further, be provided with some valve gap guide rails by valve gap relief opening circumferential inner wall on the described valve gap relief opening, described valve gap guide rail infinite approach ground is near guide rod with extending internally.
Further, described valve gap guide rail quantity is 4, and described valve gap guide rail is located on the valve gap relief opening circumferential inner wall in uniform way.
Further, be provided with some valve body guide rails by circumferential inner wall on the described valve body, described float and sealing cover outer circumferential walls be the close valve body guide rail in infinite approach ground respectively with extending internally.
Further, the quantity of described valve body guide rail is 4.
By adopting the aforementioned techniques scheme, the beneficial effects of the utility model are: compare with existing outlet valve, this composite exhaust valve has been set up the sealing buffer table, during starting mode of pump, a large amount of gases are by the air flue between valve body and the float, air flue between valve body and the sealing buffer table is discharged from relief opening, when gas flow rate is accelerated, sealing buffer table upwards action cooperates with sealing pair, at this moment since the sealing seat on the float separate with the suction port of sealing on the buffer table, air enters from sealing buffer table suction port, sealing buffer table relief opening flows out, finally discharge from the valve gap relief opening, when liquid level raise, buoyancy rose by sealing seat plug for seal buffer table suction port, so that exhaust valve closure float; When water pump stops, producing vacuum in the pipeline, float falls rapidly under action of gravitation with the sealing buffer table, and simultaneously a large amount of gases are from the outlet valve suction line, equalizing line pressure.By setting up the sealing buffer table, the buffer function by the sealing buffer table so that float make can be not stuck on sealing pair sharply rising, can prevent effectively that gas is stifled, degassing function is good, can ensure the safety of pipeline.
Description of drawings
Fig. 1 is the utility model embodiment's structural representation.
Fig. 2 is the structural representation of sealing buffer table.
Fig. 3 is the structural representation of valve seat relief opening.
Fig. 4 is that the A-A of Fig. 1 is to sectional view.
Fig. 5 is the plan view of Fig. 2.
Use phase diagram when Fig. 6 is the composite exhaust valve exhaust.
Use phase diagram when Fig. 7 is the composite exhaust valve air return.
Embodiment
Now with embodiment the utility model is further specified by reference to the accompanying drawings.
Referring to figs. 1 to Fig. 5, a kind of composite exhaust valve of the present utility model, comprise valve body 1, valve gap 2, float 3 and be located at sealing pair 4 on valve gap 2 runners, described valve body 1 is provided with valve body suction port 11, described valve gap 2 is provided with valve gap relief opening 21, also be provided with sealing buffer table 5 between described float 3 and the sealing pair 4, described sealing buffer table 5 comprises stage body 51, the sealing cover 52 that is connected with sealing pair 4 foldings, guide rod 53, described stage body 51 is provided with the sealing buffer table relief opening 54 that is communicated with valve gap relief opening 21, the sealing buffer table suction port 55 that is communicated with valve body suction port 11, described sealing cover 52 is arranged on the stage body 51, described guide rod 53 1 ends are fixed on the stage body 51, the other end extends upward and can be located at slippingly up and down in the valve gap relief opening 21, described float 3 is provided with and the sealing seat 31 that seals 55 foldings of buffer table suction port and be connected, be provided with some valve gap guide rails 22 by valve gap relief opening 21 circumferential inner walls on the described valve gap relief opening 21 with extending internally, described valve gap guide rail 22 infinite approach ground are near guide rod 53, described valve gap guide rail 22 quantity are 4, and described valve gap guide rail 22 is located on valve gap relief opening 21 circumferential inner walls in uniform way.
Be provided with some valve body guide rails 12 by circumferential inner wall on the described valve body 1, infinite approach ground is near the valve body guide rail respectively with sealing cover 52 outer circumferential walls for described float 3 with extending internally, and the quantity of described valve body guide rail 12 is 4.
The use phase diagram of not exhaust when Fig. 1 is work seals buffer table this moment and sealing pair is closed, and float rises and makes the suction port of sealing seat plug for seal buffer table, exhaust valve closure; The use phase diagram of exhaust when Fig. 6 is work, air pressure is greater than the buoyancy to float at this moment, and float descends, and other enter by sealing buffer table suction port, finally discharge exhaust valve opening from the valve gap relief opening; Fig. 7 is the use phase diagram that air passes back into pipeline when not working, because liquid backflow in the pipeline, so that the pipeline vacuum, float decline exhaust valve opening, in the outside air suction line, equalizing line pressure.
Compare with existing outlet valve, this composite exhaust valve has been set up the sealing buffer table, during starting mode of pump, a large amount of gases are by the air flue between valve body and the float, air flue between valve body and the sealing buffer table is discharged from relief opening, when gas flow rate is accelerated, sealing buffer table upwards action cooperates with sealing pair, at this moment since the sealing seat on the float separate with the suction port of sealing on the buffer table, air enters from sealing buffer table suction port, sealing buffer table relief opening flows out, and finally discharges from the valve gap relief opening, when liquid level raises, buoyancy rises by sealing seat plug for seal buffer table suction port, so that exhaust valve closure float; When water pump stops, producing vacuum in the pipeline, float falls rapidly under action of gravitation with the sealing buffer table, and simultaneously a large amount of gases are from the outlet valve suction line, equalizing line pressure.By setting up the sealing buffer table, the buffer function by the sealing buffer table so that float make can be not stuck on sealing pair sharply rising, can prevent effectively that gas is stifled, degassing function is good, can ensure the safety of pipeline.
Although specifically show and introduced the utility model in conjunction with preferred embodiment; but the those skilled in the art should be understood that; within not breaking away from the spirit and scope of the present utility model that appended claims limits; can make a variety of changes the utility model in the form and details, be the utility model protection domain.
Claims (5)
1. composite exhaust valve, comprise valve body, valve gap, float and be located at sealing pair on the valve gap runner, described valve body is provided with the valve body suction port, described valve gap is provided with the valve gap relief opening, it is characterized in that: also be provided with the sealing buffer table between described float and the sealing pair, described sealing buffer table comprises stage body, the sealing cover that is connected with the sealing pair folding, guide rod, described stage body is provided with the sealing buffer table relief opening that is communicated with the valve gap relief opening, the sealing buffer table suction port that is communicated with the valve body suction port, described sealing cover is arranged on the stage body, described guide rod one end is fixed on the stage body, the other end extends upward and can be located at slippingly up and down in the valve gap relief opening, and described float is provided with and the sealing seat that seals the folding of buffer table suction port and be connected.
2. composite exhaust valve according to claim 1 is characterized in that: be provided with some valve gap guide rails by valve gap relief opening circumferential inner wall on the described valve gap relief opening, the close guide rod in described valve gap guide rail infinite approach ground with extending internally.
3. composite exhaust valve according to claim 2, it is characterized in that: described valve gap guide rail quantity is 4, and described valve gap guide rail is located on the valve gap relief opening circumferential inner wall in uniform way.
4. according to claim 1 and 2 or 3 described composite exhaust valves, it is characterized in that: be provided with some valve body guide rails by circumferential inner wall on the described valve body, described float and sealing cover outer circumferential walls be the close valve body guide rail in infinite approach ground respectively with extending internally.
5. composite exhaust valve according to claim 4, it is characterized in that: the quantity of described valve body guide rail is 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220345745 CN202691192U (en) | 2012-07-13 | 2012-07-13 | Combined type exhaust valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220345745 CN202691192U (en) | 2012-07-13 | 2012-07-13 | Combined type exhaust valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202691192U true CN202691192U (en) | 2013-01-23 |
Family
ID=47546816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220345745 Expired - Fee Related CN202691192U (en) | 2012-07-13 | 2012-07-13 | Combined type exhaust valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202691192U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105736811A (en) * | 2016-05-09 | 2016-07-06 | 铁岭特种阀门股份有限公司 | Quick exhaust valve |
| CN106678430A (en) * | 2016-11-30 | 2017-05-17 | 中国船舶重工集团公司第七〇九研究所 | Seawater isolation device |
| CN111396577A (en) * | 2020-04-17 | 2020-07-10 | 上海司若智能科技有限公司 | A dynamic micro air valve |
| CN111911487A (en) * | 2020-06-24 | 2020-11-10 | 燕山大学 | an exhaust valve |
-
2012
- 2012-07-13 CN CN 201220345745 patent/CN202691192U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105736811A (en) * | 2016-05-09 | 2016-07-06 | 铁岭特种阀门股份有限公司 | Quick exhaust valve |
| CN105736811B (en) * | 2016-05-09 | 2017-12-01 | 铁岭特种阀门股份有限公司 | A kind of rapid escape valve |
| CN106678430A (en) * | 2016-11-30 | 2017-05-17 | 中国船舶重工集团公司第七〇九研究所 | Seawater isolation device |
| CN111396577A (en) * | 2020-04-17 | 2020-07-10 | 上海司若智能科技有限公司 | A dynamic micro air valve |
| CN111911487A (en) * | 2020-06-24 | 2020-11-10 | 燕山大学 | an exhaust valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107387849B (en) | Double-control-chamber double-floating-body exhaust valve | |
| CN202158201U (en) | Buffering exhaust valve | |
| CN203129292U (en) | Low-flow started siphon water tank with water levels adjustable | |
| CN202691192U (en) | Combined type exhaust valve | |
| CN204082565U (en) | Vacuum water diversion centrifugal pump device | |
| CN202561178U (en) | Exhaust valve | |
| CN204828917U (en) | Waterproof hammer air valve | |
| CN201106454Y (en) | Firedamp pipeline slagoff drainage device | |
| CN202215795U (en) | Drainage device | |
| CN202733132U (en) | Novel composite exhaust valve | |
| CN210716015U (en) | Exhaust valve | |
| CN104132179A (en) | Anti-blocking composite-type sewage discharge valve | |
| CN204879015U (en) | Row of closing air valve group slowly | |
| CN201582451U (en) | Vacuum one-way gas valve | |
| CN201056717Y (en) | Vacuum eliminator for water supply system | |
| CN204852549U (en) | Multi -functional open/close valve door | |
| CN204176101U (en) | A kind of high pressure inhalation valve | |
| CN103243780A (en) | Anti-pollution closed water tank | |
| CN203940102U (en) | Anti-blocking Combined sewage drain valve | |
| CN202012649U (en) | One-way automatic air inlet valve | |
| CN202691156U (en) | Dual-port exhaust valve | |
| CN204003490U (en) | Vertical-type axial-flow pump | |
| CN102777426B (en) | Self-cleaning type water suction bottom valve | |
| CN205171614U (en) | Anti -return closestool water intaking valve | |
| CN206320395U (en) | A kind of tubule road air bleeding valve |
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: 20130123 Termination date: 20150713 |
|
| EXPY | Termination of patent right or utility model |