CN2211521Y - Automatic inlet-outlet valve for transferring pipe - Google Patents
Automatic inlet-outlet valve for transferring pipe Download PDFInfo
- Publication number
- CN2211521Y CN2211521Y CN 95202526 CN95202526U CN2211521Y CN 2211521 Y CN2211521 Y CN 2211521Y CN 95202526 CN95202526 CN 95202526 CN 95202526 U CN95202526 U CN 95202526U CN 2211521 Y CN2211521 Y CN 2211521Y
- Authority
- CN
- China
- Prior art keywords
- valve
- gap
- discharge
- float
- air intake
- 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
Images
Landscapes
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Abstract
The utility model relates to an automatic air inlet and discharge valve for a transferring pipe, which is suitable for discharging air for a slurry or fluid transferring pipeline with high pressure. The utility model is characterized in that the inner part of an air accumulating chamber formed by a valve casing is provided with a solid cylinder float which is supported by a valve stem and a spring, and the gravity of the float is smaller than the sum of the buoyancy and the elastic force; a valve handle and the gap of the valve stem form small holes for the air discharge in the operation of the pipeline, a valve seat and the gap of the valve handle form big holes for air inlet and discharge when the pipeline is emptied and is filled with the slurry, and the seal after the air discharge uses the contact extrusion of an O-shaped sealing ring. Experiments proves that the utility model can bear the high pressure which is more than 32 megapascals, and corrosion resistance and abrasion resistance are high, the utility model can be in very good condition after a long run, the double air discharge holes are combined into a whole, the structure is simplified, and the weight is reduced.
Description
The present invention relates to a kind of intake and exhaust device of conveyance conduit, particularly be applicable to high-pressure delivery slurry or fluid pipeline exhaust.
The automatic air intake and discharge valve is used for the automatic air intake and discharge of slurry material conveying pipe or municipal aqueduct etc., avoid the vapour lock, vibration and the water hammer that are produced because of the pipeline pneumatosis, eliminate because the negative pressure of termination of pumping, local pipeline section that pipe evacuation caused, and by the cavitation erosion that negative pressure produced, it is the visual plant that guarantees the conveyance conduit safe operation.
Be to adopt valve exhaust manually in early days, not only inconvenience but also inaccurate, untimely.In recent years, Chinese patent on October 14th, 1992 disclosed a kind of patent No. 92203650.0, name is called " hot water heating pipeline automatic control pressure vent ", it is that the hollow ball shape float is done spool, and the structure of a microstome exhaust, the exhaust of the liquid conveyance conduit that can only be used for that working pressure is little, short distance is dried up.It is 86206248 that Chinese patent disclosed a kind of patent No. on May 13rd, 1987, name is called " high speed air inlet and exhaust valve ", it is the combination by a big aperture air inlet and exhaust valve and a microstome air inlet and exhaust valve, each air inlet and exhaust valve is done the structural type of spool respectively with the hollow ball shape float, air inlet when wherein big aperture air inlet and exhaust valve is used as pipeline emptying, exhaust when preventing negative pressure and blank pipe water-filling, microstome air inlet and exhaust valve are used as the operating exhaust of pipeline.This air inlet and exhaust valve is because the combination of two valve bodies, its complex structure, coarse, and weight is big; Do spool with the hollow ball shape float,, very easily make the hollow ball shape float be subjected to shear action to produce distortion, even leak, cause the accident, lose intake and exhaust functions because of being subjected to the big influence of pipeline inside and outside differential pressure.
The objective of the invention is to avoid deficiency of the prior art, and provide a kind of solid cylinder float with withstand voltage function to do spool, big aperture exhaust and microstome exhaust banks are combined in the automatic air intake and discharge device in the valve body.
Its technological scheme is as follows:
Conveyance conduit automatic air intake and discharge valve, comprise valve casing 1, the valve gap 5 that the connection lid flange 18 of this valve casing upper end connects, the exhaust hood 8 that valve gap top connects firmly, and formed by the pneumatosis chamber 20 that valve casing surrounds, it is characterized in that pneumatosis chamber central authorities are provided with a solid cylinder float 2, this hinged valve rod 7 in float upper end, valve rod passes valve handle 3, the top of valve rod connects firmly spring capping 17, the upper tip of spring 6 embeds in this spring capping, and lower end embeds on the valve gap, connects firmly valve seat 4 on the middle hole wall of valve gap.The root of valve rod 7 embeds path " O " shape O-ring seal 10, and the gap between valve handle 3 and the valve rod 7 constitutes the microstome exhaust gear; Embed big footpath " O " shape O-ring seal 11 on the conical surface of valve handle 3, the gap that valve handle 3 valve seats 4 corresponding with it are surrounded constitutes big aperture exhaust gear.
Describe structure of the present invention and mode of execution in detail below in conjunction with accompanying drawing.
Fig. 1 represents front section view of the present invention.
Fig. 2 presentation graphs 1 is along the A-A sectional view.
Fig. 3 presentation graphs 1 is along the B-B sectional view.
The local amplification view of Fig. 4 presentation graphs 1C portion.
Conveyance conduit automatic air intake and discharge valve as Fig. 1 represents comprises valve casing 1, the connection pipe flange 14 that the lower end of this valve casing connects firmly, the connection lid flange 18 that the upper end connects firmly, valve gap covers flange with connection and is connected with bolt, and its contacting point is with 19 sealings of " O " shape O-ring seal, and the top of valve gap connects firmly exhaust hood 8.The top of the exhaust hood plurality of rows pore 15(Fig. 2 that is uniformly distributed along the circumference).Valve casing and valve gap generally adopt the high-quality thick-walled seamless steel pipes rolling, to improve its voltage endurance capability.The inner chamber that valve casing 1 surrounds is pneumatosis chamber 20, and the central authorities in the pneumatosis chamber are provided with a solid cylinder float 2, and this float is generally used the engineering plastics manufacturing, and it has withstand voltage erosion resistance.When the pipeline inoperative, the conical surface of solid cylinder float lower end contacts with the inclined-plane that connects firmly the bearing rib 9 on the valve casing inwall and locatees, generally along three bearing rib 9(of valve casing inwall circumference uniform distribution Fig. 3).The upper end of solid cylinder float is to connect pin 13 hinged valve rod 7(Fig. 4), this hinging structure is convenient to regulate float maintenance perpendicularity in service, valve rod passes the mesopore of valve handle 3, embed path " O " shape O-ring seal 10 along the valve rod root, the gap between the mesopore of valve handle and valve rod, path " O " the shape O-ring seal constitutes the microstome exhaust gear.Occupy on the valve rod at position, top of valve handle and screw in stop nut 12.Embed big footpath " O " shape O-ring seal 11 on the outer rim conical surface of valve handle 3, it with the middle hole wall of corresponding valve gap 5 on connect firmly valve seat 4, valve seat 4 and the outer rim conical surface of valve handle 3, greatly directly the gap that surrounded of " O " shape O-ring seal 11 constitutes big aperture exhaust gear.The tip portion of valve rod 7 connects firmly a spring capping 17 with solid spring nut 16, and the upper tip of spring 6 embeds in the spring capping, and lower end embeds on the valve gap.The said solid cylinder float 2 in front, valve rod 7, valve handle 3, spring capping 17, stop nut 12 and solid spring nut 16 constitute and are the float spool, when conveyance conduit operation working state, the gravity of this float spool should be less than the elastic force sum of buoyancy and spring 6, fibrous root calculates the parameter of required spring according to the aperture size of valve port 21 during design, in order to the spring of appropriate design specification.
The conveyance conduit automatic air intake and discharge valve that Fig. 1 is represented with connection pipe flange 14 and Bolt Connection on conveyance conduit, before the conveyance conduit operation, solid cylinder float 2 drops to extreme lower position, promptly the conical surface of this float lower end contacts with the inclined-plane of bearing rib 9, this moment, path " O " the shape O-ring seal 10 of valve rod 7 roots contacted with the middle hole wall of valve handle 3, valve handle 3 is separated with valve seat 4, and pneumatosis chamber 20 communicates with atmosphere.When conveyance conduit brings into operation, for example begin slurry body or water, the gas in the pipeline charges into the pneumatosis chamber through valve port 21, and between valve handle and valve seat crack (big aperture), drains into atmosphere by exhaust hood 8 and exhaust port 15.Liquid level rises thereupon, make elastic force effect vertical float of solid cylinder float 2 at buoyancy and spring 6, when the bottom that the indoor liquid level of pneumatosis floods the solid cylinder float makes progress about 2/3rds position, big footpath " O " shape O-ring seal 11 on the valve handle is contacted with valve seat and compress, isolated big aperture exhaust, pneumatosis chamber and atmospheric isolation, guarantee that conveyance conduit normally moves, indoor liquid level and the microstome of pneumatosis this moment, form one section air barrier between the sealing part in big aperture, its sealing part is not contacted with slurry or water, to reduce wearing and tearing, improve working life.In the conveyance conduit running, occur if any gas, this gas will charge into top, pneumatosis chamber at any time and gather, and simultaneously pneumatosis indoor slurry or water be replaced away, liquid level is descended, buoyancy reduces, and the solid cylinder float moves downward under action of gravity, until the middle hole wall disengaging of path " O " shape O-ring seal and valve handle, gas is discharged from microstome, liquid level rises thereupon, solid cylinder float come-up, and path " O " shape O-ring seal contacts and compresses with valve handle.So, realize the microstome automatic air intake and discharge.
Advantage of the present invention:
1, do spool with the solid cylinder float, more can bear high pressure, when bearing pressure more than 32 MPas through testing this float, long-term operation is excellent.
2, big aperture and microstome exhaust gear are combined in the same valve body, make its structure greatly simplify weight saving.
3, big aperture, microstome adopt the sealing of " O " shape O-ring seal more can be withstand voltage, through examination Test and when valve inside and outside differential pressure 50 MPa, do not occur leaking.
4, owing to adopt the structure of spring reaction float,, can adjust the elastic force of spring at any time, make the automatic air intake and discharge valve adapt to the discharge characteristic of various pipelines though float quality and volume are definite.
5, because the design of solid cylinder float, consider that the indoor liquid level of pneumatosis floods when making progress about 2/3rds position from the bottom of solid cylinder float, big aperture, microstome are closed, slurries do not contact with sealing part, to reduce its wearing and tearing have been improved working life.
Claims (5)
1, a kind of conveyance conduit automatic air intake and discharge valve, comprise valve casing 1, the valve gap 5 that the connection lid flange 18 of this valve casing upper end connects, the exhaust hood 8 that valve gap top connects firmly, and formed by the pneumatosis chamber 20 that valve casing surrounds, it is characterized in that pneumatosis chamber central authorities are provided with a solid cylinder float 2, this hinged valve rod 7 in float upper end, valve rod wore valve handle 3, the top of valve rod connects firmly spring capping 17, the upper tip of spring 6 embeds in this spring capping, and lower end embeds on the valve gap, connects firmly valve seat 4 on the middle hole wall of valve gap.
2,, it is characterized in that the root of valve rod 7 embeds path " O " shape O-ring seal 10 according to the described automatic air intake and discharge valve of claim 1.
3,, it is characterized in that the gap between the mesopore of valve handle and valve rod, path " O " the shape O-ring seal constitutes the microstome exhaust gear according to claim 1 or 2 described automatic air intake and discharge valves.
4,, it is characterized in that embedding on the outer rim conical surface of valve handle 3 big footpath " O " shape O-ring seal 11 according to the described automatic air intake and discharge valve of claim 1.
5,, it is characterized in that valve seat 4 and the gap that the outer rim conical surface of valve handle 3, big footpath " O " shape O-ring seal 11 are surrounded constitute big aperture exhaust gear according to claim 1 or 4 described automatic air intake and discharge valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95202526 CN2211521Y (en) | 1995-02-21 | 1995-02-21 | Automatic inlet-outlet valve for transferring pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95202526 CN2211521Y (en) | 1995-02-21 | 1995-02-21 | Automatic inlet-outlet valve for transferring pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2211521Y true CN2211521Y (en) | 1995-11-01 |
Family
ID=33855661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95202526 Expired - Fee Related CN2211521Y (en) | 1995-02-21 | 1995-02-21 | Automatic inlet-outlet valve for transferring pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2211521Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100460733C (en) * | 2007-04-12 | 2009-02-11 | 安东石油技术（集团）有限公司 | Automatic high-pressure exhaust valve |
| CN105675288A (en) * | 2016-04-06 | 2016-06-15 | 辽宁省水利水电科学研究院 | Inlet/exhaust valve performance test device |
| CN107218397A (en) * | 2017-05-19 | 2017-09-29 | 蓝衍（郑州)环保有限公司 | Automatic inlet-outlet valve with liquid-level switch |
| CN107300040A (en) * | 2017-07-14 | 2017-10-27 | 安徽红星阀门有限公司 | A kind of direct-burried air bleeding valve |
-
1995
- 1995-02-21 CN CN 95202526 patent/CN2211521Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100460733C (en) * | 2007-04-12 | 2009-02-11 | 安东石油技术（集团）有限公司 | Automatic high-pressure exhaust valve |
| CN105675288A (en) * | 2016-04-06 | 2016-06-15 | 辽宁省水利水电科学研究院 | Inlet/exhaust valve performance test device |
| CN107218397A (en) * | 2017-05-19 | 2017-09-29 | 蓝衍（郑州)环保有限公司 | Automatic inlet-outlet valve with liquid-level switch |
| CN107300040A (en) * | 2017-07-14 | 2017-10-27 | 安徽红星阀门有限公司 | A kind of direct-burried air bleeding valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101787702A (en) | Effective vacuum dewatering method | |
| CN2211521Y (en) | Automatic inlet-outlet valve for transferring pipe | |
| US4535800A (en) | Valve system for vacuum sewage collection system | |
| CN219221431U (en) | Novel sewage well drainage structure for negative pressure sewage collection system | |
| CN111075947A (en) | Simple cut-off device, using method thereof and pipeline provided with device | |
| CN201028118Y (en) | Full-automatic discharging and gas leakage proof device | |
| CN214118958U (en) | Adjustable gas leakage prevention device | |
| CN207162135U (en) | A kind of coal gas drainer of reliable operation | |
| CN114877078A (en) | Negative pressure angle seat valve for vacuum sewage pipeline | |
| CN103899807A (en) | Low-maintenance type pressure relief/holding valve with spring arranged externally | |
| CN208152132U (en) | A kind of integrated water supply device | |
| CN201802879U (en) | Highly-sealed cylindrical quick exhaust valve | |
| CN214221591U (en) | MVR vapor compressor is with sealed automatic water supply device | |
| CN206329779U (en) | A kind of magnetic suspension air bleeding valve | |
| CN2355199Y (en) | Water discharge valve with float bowl | |
| CN108825860B (en) | Automatic accumulated water release device for vacuum pump oil tank | |
| CN215059498U (en) | Multifunctional valve based on artificial intelligence | |
| CN213390421U (en) | Full duct flow pipeline unloading desilting device of low pressure | |
| CN101059277A (en) | Solar energy water heater | |
| CN219841224U (en) | Pressure reducing device for boiler sewage pipeline | |
| CN200996553Y (en) | Leakage-proof device of gas pipeline drainer | |
| CN216952581U (en) | Combined sealed drainage stop valve | |
| CN214466495U (en) | Combined type discharge valve of adjustable displacement and drainage | |
| CN2222937Y (en) | Automatic liquid level control valve | |
| CN220185302U (en) | Blowdown equipment of air compressor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |