CN104500797B - A kind of underwater drainage air valve - Google Patents
A kind of underwater drainage air valve Download PDFInfo
- Publication number
- CN104500797B CN104500797B CN201410830408.1A CN201410830408A CN104500797B CN 104500797 B CN104500797 B CN 104500797B CN 201410830408 A CN201410830408 A CN 201410830408A CN 104500797 B CN104500797 B CN 104500797B
- Authority
- CN
- China
- Prior art keywords
- elastic component
- level
- section
- valve
- air valve
- 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.)
- Active
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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/06—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with special arrangements for adjusting the opening pressure
- F16K17/065—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with special arrangements for adjusting the opening pressure with differential piston
-
- 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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/164—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side and remaining closed after return of the normal pressure
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
- Control Of Fluid Pressure (AREA)
Abstract
The present invention provides a kind of underwater drainage air valve, including body, offers through hole in described body, and through hole is provided with the first elastic component construction section, the first seal section, lumen, the second seal section, the second elastic component construction section from the bottom to top；This underwater drainage air valve includes one-level valve rod, one-level elastic component, one-level pressure regulation part, one-level valve rod has the first seal head and first connecting rod, first connecting rod is provided with abutment, one-level elastic component is connected between body and abutment, and one-level pressure regulation part can move up and down being connected on first connecting rod and supporting abutment of regulation；This underwater drainage air valve includes secondary valve bar, two grades of elastic components, second voltage regulation parts, and secondary valve bar has the second seal head, and second voltage regulation part can move up and down and adjustably be connected to body upper end, and two grades of elastic components are connected between the second seal head and second voltage regulation part.The present invention uses secondary exhaust structure, uses relatively reliable, easy for installation, is applicable in underwater environment.
Description
Technical field
The present invention relates to a kind of for regulating the pressure balanced air bleeding valve of natural-gas transfer pipeline outer layer under water, a kind of underwater drainage air valve using secondary exhaust structure.
Background technology
Air bleeding valve is a kind of for being arranged on pipeline with the equipment of gas in quick discharge line.In existing air bleeding valve mainly application pipeline on land, and being all single-stage exhaust structure, its pressure at expulsion has set before dispatching from the factory, and scene cannot regulate.Therefore, can there is following defect in existing air bleeding valve when being applied under water in natural-gas transfer pipeline:
(1) air bleeding valve of the prior art is single step arrangement, only inside and outside with the combination of spring isolation by a valve rod, under micro-open/close states, once spring fatigue or valve rod lost efficacy with valve seal, gas medium will be leaked in the external world, causes adverse consequences.
(2) the exhaust pressure reduction of air bleeding valve of the prior art is fixing uncontrollable, and once work on the spot pressure environment occurs micro-change, and air bleeding valve is the most ineffective, can only reinstall new air bleeding valve.
(3) air bleeding valve of the prior art is mainly used in land, is not suitable for the underwater environment extremely harsh to environmental requirement.
Summary of the invention
In order to overcome the defect of prior art, it is an object of the invention to provide a kind of be applicable under water, more safety and can be conveniently adjusted exhaust pressure reduction air bleeding valve.
In order to achieve the above object, the present invention provides a kind of underwater drainage air valve, including body, it is characterised in that:
Described body offers the through hole of up/down perforation, described through hole be provided with from the bottom to top the first elastic component construction section for installing one-level elastic component, for be tightly connected the first seal section of one-level valve rod, lumen, for be tightly connected secondary valve bar the second seal section, for install two grades of elastic components the second elastic component construction section；
Described underwater drainage air valve includes one-level valve rod, one-level elastic component, one-level pressure regulation part, described one-level valve rod can be arranged on described lumen up and down, in described first seal section and described first elastic component construction section, described one-level valve rod has the first seal head matched with described first seal section and the first connecting rod downwardly extended, described first connecting rod is provided with abutment moving up and down, described one-level elastic component is connected between described body and described abutment, described one-level pressure regulation part can move up and down being connected on described first connecting rod and supporting described abutment of regulation；
Described underwater drainage air valve includes secondary valve bar, two grades of elastic components, second voltage regulation parts, described secondary valve bar can be arranged in described second elastic component construction section and described second seal section up and down, described secondary valve bar has the second seal head matched with described second seal section, described second voltage regulation part can move up and down and adjustably be connected to described body upper end, and described two grades of elastic components are connected between described second seal head and described second voltage regulation part.
The present invention, by using secondary exhaust structure, is effectively improved the reliability of air bleeding valve, it can be avoided that the inwelling of outside enters gas pipeline when making to work in the air bleeding valve natural-gas transfer pipeline in the sea.Accordingly, with respect to prior art, the underwater drainage air valve work of the present invention is more reliable, and service life is longer, more can be applicable to underwater environment.
Preferably, described first seal section is the first conical section that aperture becomes larger from the bottom to top, described first seal head be outer circumference surface be the first conical head of taper surface；Described second seal section is the second conical section that aperture becomes larger from the bottom to top, described second seal head be outer circumference surface be the second conical head of taper surface.Use this design, the conical surface seal between conical head and conical section, make valve rod have self-aligning function, the center of through hole can be positioned at all the time, it is ensured that fixing seal pressure, so that it is guaranteed that realize fixing pressure at expulsion rated value.
It is further preferred that the aperture, upper end of described first conical section is less than or equal to the aperture, lower end of described second conical section.Use this design, when installing one-level valve rod, can install very convenient during directly the upper opening of through hole puts into middle cavity, the first conical section and the first elastic component construction section from body.
Wherein, described one-level pressure regulation part is adjusting nut, and the outer circumference surface of described first connecting rod has external screw thread, and described adjusting nut is threadeded with described first connecting rod.By tightening or loosening adjusting nut, it is possible to be conveniently adjusted the thrust of the first elastic component, thus regulate the pressure at expulsion of one-level valve rod.
Described second voltage regulation part is regulation pressure cap, and it has external screw thread, and described second elastic component construction section has internal thread, and described regulation pressure cap is threadeded with described second elastic component construction section.The upper shed of the second elastic component construction section is not only closed by regulation pressure cap, and tightens or loosen regulation pressure cap and just can regulate the thrust of the second elastic component, thus regulates the pressure at expulsion of secondary valve bar.
The present invention can be adjusted according to operating mode, it is respectively provided with and regulates firsts and seconds pressure at expulsion rated value by one-level pressure regulation part and second voltage regulation part, it it not single fixing exhaust pressure value, the underwater drainage air valve making the present invention has versatility in the range of certain pressure, it is achieved the function of multi-purpose valve.
Wherein, the most threaded on described regulation pressure cap have also cap nut fixing to described regulation pressure cap and described body.And cap nut can by regulation pressure cap fix, prevent regulate pressure cap be adjusted to setting position after be moved.
Described secondary valve bar also has the second connecting rod extended upward in described second elastic component construction section, is provided with the fairlead downwardly extended in described regulation pressure cap, and the upper end of described second connecting rod can slide up and down to be inserted in described fairlead.The up and down motion of second connecting rod is played guide effect by fairlead, it is to avoid produce radial-play when secondary valve bar moves up and down.
In one embodiment, described first elastic component and described second elastic component are spring.
Further, being provided with connecting hole in described abutment, described first connecting rod passes described connecting hole.
Owing to using technique scheme, the underwater drainage air valve of the present invention has the advantage that (1) uses secondary exhaust structure, is applicable to underwater operation, more safe and reliable, it is possible to prevent the water of outside from pouring in down a chimney in gas pipeline；(2) at the scene one-level pressure at expulsion rated value and secondary exhaust pressure nominal value can be adjusted respectively, make air bleeding valve have versatility in the range of certain pressure, can multi-purpose valve.
Accompanying drawing explanation
Fig. 1 is the axial cross-sectional views of underwater drainage air valve of the present invention.
In accompanying drawing: 1-two-level spring；2-secondary valve bar；21-the second conical head；22-second connecting rod；3-one-level spring；4-spring shim；5-adjusting nut；6-regulates pressure cap；7-cap nut；8-body；81-the first elastic component construction section；82-the first seal section；83-lumen；84-the second seal section；85-the second elastic component construction section；9-one-level valve rod；91-the first conical head；92-first connecting rod.
Detailed description of the invention
Below in conjunction with the accompanying drawings the preferred embodiment of the present invention is described in detail.
Refer to Fig. 1, the present invention provides a kind of underwater drainage air valve, including body 8, body 8 offers the through hole of up/down perforation, described through hole be provided with from the bottom to top the first elastic component construction section 81 for installing one-level spring 3, for be tightly connected the first seal section 82 of one-level valve rod 9, lumen 83, for being tightly connected the second seal section 84 of secondary valve bar 2, for installing the second elastic component construction section 85 of two-level spring 1.
Being provided with two-stage exhaust structure in described underwater drainage air valve, two-stage exhaust structure is arranged from the bottom to top along body 8 all through holes.Wherein, one-level exhaust structure includes one-level valve rod 9, one-level spring 3, one-level pressure regulation part, one-level valve rod 9 can be arranged in lumen the 83, first seal section 82 and the first elastic component construction section 81 up and down, and one-level valve rod 9 has the first seal head 91 matched with the first seal section 82 and extends down into the first connecting rod 92 in the first elastic component construction section 81.In the present embodiment, the first conical section that the first seal section 82 becomes larger from the bottom to top for aperture, the first seal head 91 be outer circumference surface be the first conical head of taper surface.First conical section and the first conical head pass through conical surface seal.
First connecting rod 92 is provided with abutment moving up and down, and in the present embodiment, this abutment is spring shim 4, is provided with connecting hole in spring shim 4, and first connecting rod 92 is through described connecting hole.One-level spring 3 is connected between body 8 and spring shim 4.Described one-level pressure regulation part can move up and down being connected on first connecting rod 92 and supporting spring shim 4 of regulation.In the present embodiment, described one-level pressure regulation part is adjusting nut 5, and the outer circumference surface of first connecting rod 92 has external screw thread, and adjusting nut 5 is threadeded with first connecting rod 92.Tightening adjusting nut 5, spring shim 4 can be promoted to move upward, compressed by one-level spring 3, increase the elastic pre-stress of one-level spring 3, under the effect of one-level spring 3, the first seal head 91 of one-level screw rod 9 seals and is pressed on the first seal section 82.
Secondary exhaust structure in the underwater drainage air valve of the present embodiment includes secondary valve bar 2, two-level spring 1, second voltage regulation part, secondary valve bar 2 can be arranged in the second elastic component construction section 85 and the second seal section 84 up and down, secondary valve bar 2 has the second seal head 21 matched with the second seal section 84 and extends upward into the second connecting rod 22 in the second elastic component construction section 82, described second voltage regulation part can move up and down the upper end being adjustably connected to body 8, and two-level spring 1 is connected between the second seal head and described second voltage regulation part.
Wherein, the second conical section that the second seal section 84 becomes larger from the bottom to top for aperture, the second seal head 21 be outer circumference surface be the second conical head of taper surface.Second conical section and the second conical head pass through conical surface seal.
In the present embodiment, the aperture, upper end of described first conical section is equal to the aperture, lower end of described second conical section, and now lumen 83 is isometrical cylindrical shape.So it is easy to one-level valve rod 9 is installed after the second conical section enters lumen 83 and the first conical section from the upper end open of body 8 put in place.Certainly, the aperture, upper end of the first conical section can also realize less than the aperture, lower end of described second conical section.
Wherein, described second voltage regulation part is regulation pressure cap 6, it has external screw thread, the most threaded on described regulation pressure cap have also cap nut 7 fixing with body 8 for regulation pressure cap 6, being provided with, in regulation pressure cap 6, the fairlead 61 downwardly extended, the upper end of second connecting rod 22 can slide up and down to be inserted in fairlead 61.The up and down motion of second connecting rod 22 is played guide effect by fairlead 61, it is to avoid produce radial-play when secondary valve bar 2 moves up and down.Second elastic component construction section 85 has internal thread, and regulation pressure cap 6 is threadeded with the second elastic component construction section 85.During the pressure at expulsion rated value of secondary valve bar 2 to be regulated, as long as unscrewing and cap nut 7, then tightening or unscrewing regulation pressure cap 6, the pretightning force of two-level spring 1 can be regulated.
The operation principle of the underwater drainage air valve of the present embodiment is: as shown in Figure 1, this underwater drainage air valve is unidirectional two-layer configuration, whole air bleeding valve is threadedly attached on device, and when air bleeding valve upstream pressure is more than the first setup pressure value, one-level valve rod 9 is beated unlatching, pressure enters lumen 83, when air bleeding valve upstream pressure is more than the second setup pressure value, secondary valve bar 2 is beated unlatching, and pressure releasing is to downstream, now pressure declines, exhaust valve closure.The unlatching pressure of beating of one-level valve rod 9 and secondary valve bar 2 can be set by adjusting nut 5 and regulation pressure cap 6 respectively.
Relative to prior art, the underwater drainage air valve of the present embodiment has the advantage that
(1) by using secondary exhaust structure, being effectively improved the reliability of air bleeding valve, service life is longer, more can be applicable to underwater environment.
(2) one-level valve rod 9 and secondary valve bar 2 all use conical surface seal, make valve rod have self-aligning function, can be positioned at the center of through hole all the time, it is ensured that fixing seal pressure, so that it is guaranteed that realize fixing pressure at expulsion rated value.
(3) when installing one-level valve rod 9, can install very convenient during directly from body 8, the upper opening of through hole puts into lumen the 83, first conical section and the first elastic component construction section 81.
(4) by tightening or loosen adjusting nut 5, regulation pressure cap 6, it is possible to be conveniently adjusted the pressure at expulsion rated value of one-level valve rod and secondary valve bar so that the underwater drainage air valve of the present invention has versatility in the range of certain pressure, it is achieved the function of multi-purpose valve.
Above-described embodiment is only for technology design and the feature of the explanation present invention; its object is to allow person skilled in the art will appreciate that present disclosure and to implement according to this; can not limit the scope of the invention with this; all equivalence changes made according to spirit of the invention or modification, all should contain within protection scope of the present invention.
Claims (9)
1. a underwater drainage air valve, including body, it is characterised in that:
Described body offers the through hole of up/down perforation, described through hole be provided with from the bottom to top the first elastic component construction section for installing one-level elastic component, for be tightly connected the first seal section of one-level valve rod, lumen, for be tightly connected secondary valve bar the second seal section, for install two grades of elastic components the second elastic component construction section；
Described underwater drainage air valve includes one-level valve rod, one-level elastic component, one-level pressure regulation part, described one-level valve rod can be arranged on described lumen up and down, in described first seal section and described first elastic component construction section, described one-level valve rod has the first seal head matched with described first seal section and the first connecting rod downwardly extended, described first connecting rod is provided with abutment moving up and down, described one-level elastic component is connected between described body and described abutment, described one-level pressure regulation part can move up and down being connected on described first connecting rod and supporting described abutment of regulation；
Described underwater drainage air valve includes secondary valve bar, two grades of elastic components, second voltage regulation parts, described secondary valve bar can be arranged in described second elastic component construction section and described second seal section up and down, described secondary valve bar has the second seal head matched with described second seal section, described second voltage regulation part can move up and down and adjustably be connected to described body upper end, and described two grades of elastic components are connected between described second seal head and described second voltage regulation part.
A kind of underwater drainage air valve the most according to claim 1, it is characterised in that: described first seal section is the first conical section that aperture becomes larger from the bottom to top, described first seal head be outer circumference surface be the first conical head of taper surface；Described second seal section is the second conical section that aperture becomes larger from the bottom to top, described second seal head be outer circumference surface be the second conical head of taper surface.
A kind of underwater drainage air valve the most according to claim 2, it is characterised in that: the aperture, upper end of described first conical section is less than or equal to the aperture, lower end of described second conical section.
A kind of underwater drainage air valve the most according to claim 1, it is characterised in that: described one-level pressure regulation part is adjusting nut, and the outer circumference surface of described first connecting rod has external screw thread, and described adjusting nut is threadeded with described first connecting rod.
A kind of underwater drainage air valve the most according to claim 1, it is characterised in that: described second voltage regulation part is regulation pressure cap, and it has external screw thread, and described second elastic component construction section has internal thread, and described regulation pressure cap is threadeded with described second elastic component construction section.
A kind of underwater drainage air valve the most according to claim 5, it is characterised in that: the most threaded on described regulation pressure cap have also cap nut fixing to described regulation pressure cap and described body.
A kind of underwater drainage air valve the most according to claim 5, it is characterized in that: described secondary valve bar also has the second connecting rod extended upward in described second elastic component construction section, being provided with the fairlead downwardly extended in described regulation pressure cap, the upper end of described second connecting rod can slide up and down to be inserted in described fairlead.
A kind of underwater drainage air valve the most according to claim 1, it is characterised in that: described first elastic component and described second elastic component are spring.
A kind of underwater drainage air valve the most according to claim 1, it is characterised in that: being provided with connecting hole in described abutment, described first connecting rod passes described connecting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410830408.1A CN104500797B (en) | 2014-12-26 | 2014-12-26 | A kind of underwater drainage air valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410830408.1A CN104500797B (en) | 2014-12-26 | 2014-12-26 | A kind of underwater drainage air valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104500797A CN104500797A (en) | 2015-04-08 |
| CN104500797B true CN104500797B (en) | 2016-08-24 |
Family
ID=52942229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410830408.1A Active CN104500797B (en) | 2014-12-26 | 2014-12-26 | A kind of underwater drainage air valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104500797B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106594329A (en) * | 2016-11-30 | 2017-04-26 | 中国船舶重工集团公司第七〇九研究所 | Underwater variable depth gas exhausting system outlet side valve protecting system |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE645436C (en) * | 1936-01-30 | 1937-05-27 | Hessenwerk Rudolf Majert Komm | Safety valve for high-tension gases such as natural gas and coke oven gas |
| US20080047613A1 (en) * | 2006-08-22 | 2008-02-28 | Tien-Tsai Huang | Multifunctional two-way fluid check valve |
| CN101275685B (en) * | 2008-03-25 | 2010-06-02 | 北京天地玛珂电液控制系统有限公司 | Emulsifiable solution medium large flow safety valve |
| CN203703284U (en) * | 2014-01-20 | 2014-07-09 | 奉化市必达机械制造有限公司 | Pressure relief valve |
| CN204345011U (en) * | 2014-12-26 | 2015-05-20 | 纽威石油设备（苏州）有限公司 | A kind of underwater drainage air valve |
-
2014
- 2014-12-26 CN CN201410830408.1A patent/CN104500797B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104500797A (en) | 2015-04-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9879799B2 (en) | Pressure regulator | |
| CN202360829U (en) | Novel one-way overflow valve | |
| CN104500797B (en) | A kind of underwater drainage air valve | |
| CN204345011U (en) | A kind of underwater drainage air valve | |
| CN105156040A (en) | Splash-proof joint of square drill rod | |
| CN207621439U (en) | Totally-enclosed steam flange form safety valve | |
| CN105650314B (en) | A kind of self-operated type voltage stabilizing balanced valve | |
| CN105673903B (en) | A kind of self-balancing valve | |
| CN104315155A (en) | Improvement method for internal bypass structure of cut-off valve | |
| CN204083312U (en) | A kind of temperature-decreased pressure reducer improveing spool | |
| CN106286918A (en) | Ultra-high-pressure overflow valve | |
| CN107477246A (en) | A kind of easy-maintaining spray desuperheating valve of high-performance | |
| CN103145084B (en) | Emergency pull-off device | |
| CN205840852U (en) | Constant current open flow reducer after a kind of well fracturing | |
| CN101559829A (en) | Float-type water level regulator | |
| CN204573230U (en) | A kind of piston type decompression constant-voltage equipment | |
| CN203836304U (en) | High-pressure safety pilot valve | |
| CN202914763U (en) | Guiding deflation valve used for hydraulic device | |
| CN207864889U (en) | A kind of pipeline patching device | |
| CN207578318U (en) | A kind of novel dismounting valve seat tool | |
| CN205780958U (en) | Combination bore blockage resisting pilot operated compound relief valve | |
| CN204004752U (en) | A kind ofly be with fool proof switch valve | |
| CN209244545U (en) | A kind of anti-pumpingh well fueling injection equipment | |
| CN206093330U (en) | Pipe clamp for drilling under pressure of pipeline | |
| CN204164474U (en) | Separator float liquid level controlling mechanism damping device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |