CN204692595U - Industrial refrigeration right-angle type screw down nonreturn valve - Google Patents

Industrial refrigeration right-angle type screw down nonreturn valve Download PDF

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Publication number
CN204692595U
CN204692595U CN201520355569.XU CN201520355569U CN204692595U CN 204692595 U CN204692595 U CN 204692595U CN 201520355569 U CN201520355569 U CN 201520355569U CN 204692595 U CN204692595 U CN 204692595U
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CN
China
Prior art keywords
valve
endoporus
flap
nonreturn
angle type
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
Application number
CN201520355569.XU
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Chinese (zh)
Inventor
许炎章
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.)
CHANGZHOU AMG REFRIGERATION EQUIPMENT Co Ltd
Original Assignee
CHANGZHOU AMG REFRIGERATION EQUIPMENT 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 CHANGZHOU AMG REFRIGERATION EQUIPMENT Co Ltd filed Critical CHANGZHOU AMG REFRIGERATION EQUIPMENT Co Ltd
Priority to CN201520355569.XU priority Critical patent/CN204692595U/en
Application granted granted Critical
Publication of CN204692595U publication Critical patent/CN204692595U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to valve technology field, especially a kind of industrial refrigeration right-angle type screw down nonreturn valve.A kind of industrial refrigeration right-angle type screw down nonreturn valve, comprise valve body, valve gap and valve rod, described valve body has the endoporus of T font, flap is equipped with in described endoporus, described flap is connected with valve rod by spring, valve stem casing is provided with outside valve rod, the top of described valve body is provided with pressure control cavity, the side of valve body is provided with a unicom pipeline from pressure control cavity bottom to endoporus sidewall, the top of described valve rod is connected with spanner, is provided with the indicator of this Stress control cavity pressure of display below described spanner.Screw down nonreturn valve of the present utility model is more laborsaving than common screw down nonreturn valve in closing process.After valve closing, the counterpressure Auxiliary valves flap seal of generation, sealing effect is better.

Description

Industrial refrigeration right-angle type screw down nonreturn valve
Technical field
The utility model relates to valve technology field, especially a kind of industrial refrigeration right-angle type screw down nonreturn valve.
Background technique
Screw down nonreturn valve because of its structure simple, reliable in action, opens and closes rapidly, is widely used in boats and ships, oil, chemical industry and power station etc.Sealing force needed for high-pressure stop safety check is comparatively large, opens and closes moment large, is not easy to operation, makes it apply and be restricted.
Model utility content
The technical problems to be solved in the utility model is: based on the problems referred to above, provides a kind of industrial refrigeration right-angle type screw down nonreturn valve under elevated pressure conditions with good sealing and operating characteristics.
The utility model solves the technological scheme that its technical problem adopts: a kind of industrial refrigeration right-angle type screw down nonreturn valve, comprise valve body, valve gap and valve rod, described valve body has the endoporus of T font, flap is equipped with in described endoporus, described flap is connected with valve rod by spring, valve stem casing is provided with outside valve rod, the top of described valve body is provided with pressure control cavity, the side of valve body is provided with a unicom pipeline from pressure control cavity bottom to endoporus sidewall, the top of described valve rod is connected with spanner, the indicator of this Stress control cavity pressure of display is provided with below described spanner.
Further, the endoporus of described flap and valve body adopts Spielpassung.The endoporus of flap and valve body adopts Spielpassung, in flap inside, spring is housed, and make the non-return stable performance of valve, sealing surface is not easily damaged.
Further, between described valve stem casing and valve body, be provided with O RunddichtringO, between described valve stem casing and valve rod, be provided with two O RunddichtringOs.
The beneficial effects of the utility model are: screw down nonreturn valve of the present utility model is more laborsaving than common screw down nonreturn valve in closing process.After valve closing, the counterpressure Auxiliary valves flap seal of generation, sealing effect is better.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is structural representation of the present utility model.
In figure: 1. valve body, 2. valve gap, 3. valve rod, 4. endoporus, 5. flap, 6. spring, 7. valve stem casing, 8. pressure control cavity, 9. unicom pipeline, 10. spanner, 11. indicators.
Embodiment
By reference to the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present utility model are described in a schematic way, and therefore it only shows the formation relevant with the utility model.
As shown in Figure 1, a kind of industrial refrigeration right-angle type screw down nonreturn valve, comprise valve body 1, valve gap 2 and valve rod 3, valve body 1 has the endoporus 4 of T font, flap 5 is equipped with in endoporus 4, flap 5 is connected with valve rod 3 by spring 6, valve stem casing 7 is provided with outside valve rod 3, the top of valve body 1 is provided with pressure control cavity 8, the side of valve body 1 is provided with a unicom pipeline 9 from pressure control cavity 8 bottom to endoporus 4 sidewall, the top of valve rod 3 is connected with spanner 10, is provided with the indicator 11 of this pressure control cavity 8 pressure of display below spanner 10.
The present embodiment increases a pressure control cavity 8 on common cut-off non-return valve body top, and communicate with valve body 1 inlet channel through unicom pipeline 9.During closedown, because flowing medium enters pressure control cavity 8, mineralization pressure, is delivered to flap 5 top by valve rod 3, overcomes flowing medium to the active force bottom flap 5, makes the active force that valve rod 3 need are less, just can reach sealing.Due to the active force that the spring 6 taking full advantage of its inlet pressure and flap 5 top produces, thus make closedown and the labor-saving opening of valve body 1, operate steadily, sealing is reliable, and working life extends.
Further, flap 5 adopts Spielpassung with the endoporus of valve body 1.
Further, between valve stem casing 7 and valve body 1, be provided with O RunddichtringO, between valve stem casing 7 and valve rod 3, be provided with two O RunddichtringOs.Sealing between valve stem casing 7 and valve body 1 adopts O RunddichtringO, arranges a notch-cut type back-up ring at its compression-side.Sealing between valve stem casing 7 and valve rod 1 arranges two O RunddichtringOs, also arranges a notch-cut type back-up ring in its pressurized side, to prevent medium to valve gap place seepage, guarantees sealing effect.
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this model utility technological thought, can carry out various change and amendment completely.The technical scope of this model utility is not limited to the content on specification, must determine its technical scope according to right.

Claims (3)

1. an industrial refrigeration right-angle type screw down nonreturn valve, comprise valve body (1), valve gap (2) and valve rod (3), it is characterized in that: described valve body (1) has the endoporus (4) of T font, flap (5) is equipped with in described endoporus (4), described flap (5) is connected with valve rod (3) by spring (6), valve stem casing (7) is provided with outside valve rod (3), the top of described valve body (1) is provided with pressure control cavity (8), the side of valve body (1) is provided with a unicom pipeline (9) from pressure control cavity (8) bottom to endoporus (4) sidewall, the top of described valve rod (1) is connected with spanner (10), described spanner (10) below is provided with the indicator (11) of display this pressure control cavity (8) pressure.
2. industrial refrigeration right-angle type screw down nonreturn valve according to claim 1, is characterized in that: described flap (5) adopts Spielpassung with the endoporus of valve body (1).
3. industrial refrigeration right-angle type screw down nonreturn valve according to claim 1, it is characterized in that: between described valve stem casing (7) and valve body (1), be provided with O RunddichtringO, between described valve stem casing (7) and valve rod (3), be provided with two O RunddichtringOs.
CN201520355569.XU 2015-05-28 2015-05-28 Industrial refrigeration right-angle type screw down nonreturn valve Expired - Fee Related CN204692595U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520355569.XU CN204692595U (en) 2015-05-28 2015-05-28 Industrial refrigeration right-angle type screw down nonreturn valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520355569.XU CN204692595U (en) 2015-05-28 2015-05-28 Industrial refrigeration right-angle type screw down nonreturn valve

Publications (1)

Publication Number Publication Date
CN204692595U true CN204692595U (en) 2015-10-07

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520355569.XU Expired - Fee Related CN204692595U (en) 2015-05-28 2015-05-28 Industrial refrigeration right-angle type screw down nonreturn valve

Country Status (1)

Country Link
CN (1) CN204692595U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104976392A (en) * 2015-06-04 2015-10-14 许炎章 Right-angled type stop check valve for industrial refrigeration
CN106051171A (en) * 2016-06-08 2016-10-26 中国船舶重工集团公司第七二五研究所 Pressure self-balanced type stop check valve
CN110081189A (en) * 2019-05-15 2019-08-02 李琼 A kind of two-way three-eccentric-butterfly-valve
CN110081190A (en) * 2019-05-15 2019-08-02 徐国华 A kind of bidirectional sealed butterfly valve

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104976392A (en) * 2015-06-04 2015-10-14 许炎章 Right-angled type stop check valve for industrial refrigeration
CN106051171A (en) * 2016-06-08 2016-10-26 中国船舶重工集团公司第七二五研究所 Pressure self-balanced type stop check valve
CN110081189A (en) * 2019-05-15 2019-08-02 李琼 A kind of two-way three-eccentric-butterfly-valve
CN110081190A (en) * 2019-05-15 2019-08-02 徐国华 A kind of bidirectional sealed butterfly valve
CN110081190B (en) * 2019-05-15 2021-04-30 上海沪工阀门厂(集团)有限公司 Bidirectional sealing butterfly valve

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GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20151007

Termination date: 20160528

CF01 Termination of patent right due to non-payment of annual fee