CN205743834U - A kind of heavy caliber expansion valve - Google Patents

A kind of heavy caliber expansion valve Download PDF

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Publication number
CN205743834U
CN205743834U CN201620428763.0U CN201620428763U CN205743834U CN 205743834 U CN205743834 U CN 205743834U CN 201620428763 U CN201620428763 U CN 201620428763U CN 205743834 U CN205743834 U CN 205743834U
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CN
China
Prior art keywords
valve
cavity
housing
barrier film
heavy caliber
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
Application number
CN201620428763.0U
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Chinese (zh)
Inventor
刘爱武
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Puffett Oil and Gas Engineering (Jiangsu) Co., Ltd.
Original Assignee
Pufeite Oil And Gas Engineering (jiangsu) Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Pufeite Oil And Gas Engineering (jiangsu) Co Ltd filed Critical Pufeite Oil And Gas Engineering (jiangsu) Co Ltd
Priority to CN201620428763.0U priority Critical patent/CN205743834U/en
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Publication of CN205743834U publication Critical patent/CN205743834U/en
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Abstract

The utility model discloses a kind of heavy caliber expansion valve, including valve body and the valve rod that stretches out valve body, also include the headstock gear that surges, described in the headstock gear that surges include: housing: its one end is connected with valve seal;Barrier film: it is positioned at housing and housing is divided into cavity A and cavity B, in described valve rod is placed in cavity A and top and membrane contacts;Back-moving spring: its be socketed on valve rod and two ends respectively with barrier film and valve body contact;Inlet: it is located on cavity B and is communicated to expansion valve valve pocket by pipeline 4, and described pipeline is provided with liquid feed valve;Bleed outlet: it is located on cavity B, and described bleed outlet is provided with bleeder valve.Expansion valve of the present utility model, installs the headstock gear that surges additional, utilizes self medium and pressure, realizes the unlatching of valve, utilizes the tension force of spring quickly to realize the closedown of valve, it is not necessary to outside power source, reduces configuration, cost-effective.

Description

A kind of heavy caliber expansion valve
Technical field
This utility model relates to a kind of heavy caliber expansion valve.
Background technology
Existing most oil and gas wellhead expansion valve, opening/shutting mode is manual, pneumatic and electronic, and this is required for by certain external force, in the environment of some are special, it is impossible to keying promptly and accurately, cause heavy losses, and processing and assembly difficulty are relatively big, running cost is more.
Summary of the invention
The purpose of this utility model is: provides a kind of and utilizes self medium and pressure to realize the expansion valve opened and closed.
This utility model is achieved through the following technical solutions: a kind of heavy caliber expansion valve, including valve body and the valve rod that stretches out valve body, also includes the headstock gear that surges, described in the headstock gear that surges include:
Housing: its one end is connected with valve seal;
Barrier film: it is positioned at housing and housing is divided into cavity A and cavity B, in described valve rod is placed in cavity A and top and membrane contacts;
Back-moving spring: its be socketed on valve rod and two ends respectively with barrier film and valve body contact;
Inlet: it is located on cavity B and is communicated to expansion valve valve pocket by pipeline 4, and described pipeline is provided with liquid feed valve;
Bleed outlet: it is located on cavity B, and described bleed outlet is provided with bleeder valve.
Further, also including that spring bumper cover, described spring bumper cover are located between back-moving spring and barrier film, the top of described valve rod contacts with spring bumper cover and the axis of valve rod is vertical with spring bumper cover place plane.
Further, also including that indicating arm, the bottom of described indicating arm are fixed on barrier film, head end stretches out housing, and its axis is positioned at same straight line with the axis of valve rod, and it contacts with housing seal.
Further, described valve rod and the center that contact point is spring bumper cover of spring bumper cover.
Further, described liquid feed valve is ball valve.
Compared with prior art, this utility model has the advantages that
Expansion valve of the present utility model, installs the headstock gear that surges additional, utilizes self medium and pressure, realizes the unlatching of valve, utilizes the tension force of spring quickly to realize the closedown of valve, it is not necessary to outside power source, reduces configuration, cost-effective.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
Below in conjunction with the accompanying drawings, this utility model is described in detail.
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, this utility model is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain this utility model, is not used to limit this utility model.
As it is shown in figure 1,1, a kind of heavy caliber expansion valve, including valve body 1 and the valve rod 2 that stretches out valve body 1, also include the headstock gear 3 that surges, described in the headstock gear 3 that surges include: housing 31: its one end is tightly connected with valve body 1;Barrier film 32: it is positioned at housing 31 and housing 31 is divided into cavity A33 and cavity B34, in described valve rod 2 is placed in cavity A33 and top contacts with barrier film 32;Back-moving spring 35: it is socketed on valve rod 2 and two ends contact with barrier film 32 and valve body 1 respectively;Inlet 36: it is located on cavity B34 and is communicated to expansion valve valve pocket by pipeline 4, and described pipeline 4 is provided with liquid feed valve 41;Bleed outlet 37: it is located on cavity B34, described bleed outlet 37 is provided with bleeder valve 42.Also including that spring bumper cover 38, described spring bumper cover 38 are located between back-moving spring 35 and barrier film 32, the top of described valve rod 2 contacts with spring bumper cover 38 and the axis of valve rod 2 is vertical with spring bumper cover 38 place plane.Also including that indicating arm 39, the bottom of described indicating arm 39 are fixed on barrier film 32, head end stretches out housing 31, and its axis is positioned at same straight line with the axis of valve rod 2, and it is in sealing contact with housing 31.Described valve rod 2 and the center that contact point is spring bumper cover 38 of spring bumper cover 38.Described liquid feed valve 41 is ball valve.
During valve closing, open liquid feed valve 41, medium flows into cavity B34 by pipeline 4, when in cavity B34, pressure medium is more than the working tension of back-moving spring 35, i.e. compressing barrier film 32 deforms, and pressuring spring cover plate 38 moves down, band ovable valve stem 2 moves down, valve realizes opening, and turns off liquid feed valve 41, then valve will be always maintained at opening;If desired by valve closing, opening bleeder valve 42, the medium in release cavity B34, empty the pressure in cavity B34, back-moving spring 35 is upspring, and the reduction of jack-up barrier film 32 deformation simultaneously moves on spring bumper cover 38, and valve rod 6 is upper together to be moved, valve closing.

Claims (5)

1. a heavy caliber expansion valve, including valve body (1) and the valve rod (2) that stretches out valve body (1), it is characterised in that: also include the headstock gear (3) that surges, described in the headstock gear (3) that surges including:
Housing (31): its one end is tightly connected with valve body (1);
Barrier film (32): it is positioned at housing (31) and housing (31) is divided into cavity A(33) with cavity B(34), described valve rod (2) is placed in cavity A(33) in and top contact with barrier film (32);
Back-moving spring (35): it is socketed on, and valve rod (2) is upper and two ends contact with barrier film (32) and valve body (1) respectively;
Inlet (36): it is located at cavity B(34) above and it is communicated to expansion valve valve pocket by pipeline (4), described pipeline (4) is provided with liquid feed valve (41);
Bleed outlet (37): it is located at cavity B(34) on, described bleed outlet (37) is provided with bleeder valve (42).
A kind of heavy caliber expansion valve the most according to claim 1, it is characterized in that: also include spring bumper cover (38), described spring bumper cover (38) is located between back-moving spring (35) and barrier film (32), and the top of described valve rod (2) contacts with spring bumper cover (38) and the axis of valve rod (2) is vertical with spring bumper cover (38) place plane.
A kind of heavy caliber expansion valve the most according to claim 1, it is characterized in that: also include indicating arm (39), the bottom of described indicating arm (39) is fixed on barrier film (32), head end stretches out housing (31), its axis is positioned at same straight line with the axis of valve rod (2), and it is in sealing contact with housing (31).
A kind of heavy caliber expansion valve the most according to claim 2, it is characterised in that: described valve rod (2) and the center that contact point is spring bumper cover (38) of spring bumper cover (38).
A kind of heavy caliber expansion valve the most according to claim 1, it is characterised in that: described liquid feed valve (41) is ball valve.
CN201620428763.0U 2016-05-11 2016-05-11 A kind of heavy caliber expansion valve Active CN205743834U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620428763.0U CN205743834U (en) 2016-05-11 2016-05-11 A kind of heavy caliber expansion valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620428763.0U CN205743834U (en) 2016-05-11 2016-05-11 A kind of heavy caliber expansion valve

Publications (1)

Publication Number Publication Date
CN205743834U true CN205743834U (en) 2016-11-30

Family

ID=57369160

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201620428763.0U Active CN205743834U (en) 2016-05-11 2016-05-11 A kind of heavy caliber expansion valve

Country Status (1)

Country Link
CN (1) CN205743834U (en)

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GR01 Patent grant
CP01 Change in the name or title of a patent holder
CP01 Change in the name or title of a patent holder

Address after: 223000 No. 345 Daxing Road, Licheng Town, Jinhu County, Huaian City, Jiangsu Province

Patentee after: Puffett Oil and Gas Engineering (Jiangsu) Co., Ltd.

Address before: 223000 No. 345 Daxing Road, Licheng Town, Jinhu County, Huaian City, Jiangsu Province

Patentee before: Pufeite oil and Gas Engineering (Jiangsu) Co., Ltd.