CN104976392A - Right-angled type stop check valve for industrial refrigeration - Google Patents
Right-angled type stop check valve for industrial refrigeration Download PDFInfo
- Publication number
- CN104976392A CN104976392A CN201510304330.4A CN201510304330A CN104976392A CN 104976392 A CN104976392 A CN 104976392A CN 201510304330 A CN201510304330 A CN 201510304330A CN 104976392 A CN104976392 A CN 104976392A
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- valve rod
- pressure control
- control cavity
- 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.)
- Pending
Links
Classifications
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- 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
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/06—Check valves with guided rigid valve members with guided stems
- F16K15/063—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring
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- 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
- F16K15/00—Check valves
- F16K15/18—Check valves with actuating mechanism; Combined check valves and actuated valves
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- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0209—Check valves or pivoted valves
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- 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
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
Abstract
The invention relates to the technical field of valves, in particular to a right-angled type stop check valve for industrial refrigeration. The right-angled type stop check valve for industrial refrigeration comprises a valve body, a valve deck and a valve rod. A T-shaped inner hole is formed in the valve body and is internally provided with a valve clack in a matched mode. The valve clack is connected with the valve rod through a spring. A valve rod sleeve is arranged outside the valve rod. A pressure control cavity is arranged in the upper portion of the valve body. A communication pipeline is arranged on one side of the valve body from the lower portion of the pressure control cavity to the lateral wall of the inner hole. The top end of the valve rod is connected with a spanner. An indicator for displaying pressure of the pressure control cavity is arranged below the spanner. The stop check valve saves much labor compared with an ordinary stop check valve in the closing process. After the valve is closed, generated backpressure assists the valve clack in sealing, and the sealing effect is better.
Description
Technical field
The present invention 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.
Summary of the invention
The technical problem to be solved in the present invention is: based on the problems referred to above, the invention provides a kind of industrial refrigeration right-angle type screw down nonreturn valve under elevated pressure conditions with good sealing and operating characteristics.
The technical solution adopted for the present invention to solve the technical problems is: provide 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 invention has the beneficial effects as follows: screw down nonreturn valve of the present invention 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 accompanying drawing embodiment, the present invention is further described.
Fig. 1 is structural representation of the present invention.
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
The invention will be further described in conjunction with specific embodiments now, and following examples are intended to the present invention instead of limitation of the invention further are described.
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 invention for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this invention technological thought, can carry out various change and amendment completely.The technical scope of this invention 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. a kind of 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. a kind of 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510304330.4A CN104976392A (en) | 2015-06-04 | 2015-06-04 | Right-angled type stop check valve for industrial refrigeration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510304330.4A CN104976392A (en) | 2015-06-04 | 2015-06-04 | Right-angled type stop check valve for industrial refrigeration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104976392A true CN104976392A (en) | 2015-10-14 |
Family
ID=54273187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510304330.4A Pending CN104976392A (en) | 2015-06-04 | 2015-06-04 | Right-angled type stop check valve for industrial refrigeration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104976392A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0867245A (en) * | 1994-08-30 | 1996-03-12 | Jidosha Kiki Co Ltd | Brake pressure control valve |
| CN202284664U (en) * | 2011-11-01 | 2012-06-27 | 良精集团有限公司 | Stop type pressure stabilizing check valve |
| CN202597719U (en) * | 2012-04-24 | 2012-12-12 | 福建海洋铜业有限公司 | Novel energy-saving regulating valve |
| CN202659991U (en) * | 2012-05-31 | 2013-01-09 | 福建海洋铜业有限公司 | Slow-closing check valve |
| CN103542142A (en) * | 2012-07-11 | 2014-01-29 | 上海神通企业发展有限公司 | Self-operated check valve |
| CN204692595U (en) * | 2015-05-28 | 2015-10-07 | 常州埃姆基冷冻设备有限公司 | Industrial refrigeration right-angle type screw down nonreturn valve |
-
2015
- 2015-06-04 CN CN201510304330.4A patent/CN104976392A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0867245A (en) * | 1994-08-30 | 1996-03-12 | Jidosha Kiki Co Ltd | Brake pressure control valve |
| CN202284664U (en) * | 2011-11-01 | 2012-06-27 | 良精集团有限公司 | Stop type pressure stabilizing check valve |
| CN202597719U (en) * | 2012-04-24 | 2012-12-12 | 福建海洋铜业有限公司 | Novel energy-saving regulating valve |
| CN202659991U (en) * | 2012-05-31 | 2013-01-09 | 福建海洋铜业有限公司 | Slow-closing check valve |
| CN103542142A (en) * | 2012-07-11 | 2014-01-29 | 上海神通企业发展有限公司 | Self-operated check valve |
| CN204692595U (en) * | 2015-05-28 | 2015-10-07 | 常州埃姆基冷冻设备有限公司 | Industrial refrigeration right-angle type screw down nonreturn valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151014 |