CN104896155A - Stop check valve for industrial refrigeration - Google Patents
Stop check valve for industrial refrigeration Download PDFInfo
- Publication number
- CN104896155A CN104896155A CN201510311668.2A CN201510311668A CN104896155A CN 104896155 A CN104896155 A CN 104896155A CN 201510311668 A CN201510311668 A CN 201510311668A CN 104896155 A CN104896155 A CN 104896155A
- Authority
- CN
- China
- Prior art keywords
- valve
- flange
- seat
- valve seat
- industrial refrigeration
- 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
- F16K15/18—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
- 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
- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/08—Guiding yokes for spindles; Means for closing housings; Dust caps, e.g. for tyre valves
Abstract
The invention relates to the technical field of valves, and specifically relates to a stop check valve for industrial refrigeration. According to the stop check valve for industrial refrigeration, a valve seat is provided with an inlet pipe, an outlet pipe, a valve seat flange, and valve seat sealing surfaces, a valve cover is provided with a guiding chamber, a valve cover flange, a valve stem sleeve, and a filling box, the valve seat is connected with the valve cover via flange screws, the middle of the valve seat and the valve cover is sealed via a flange gasket, a spring capable of performing opening and closing movement up and down in the guiding chamber is arranged in a valve disc, the bottom of the guiding chamber is provided with cushions, a filling material gasket, a filling material, and a sealing cover are arranged in the filling box, two sealing rings are arranged in the sealing cover, the sealing cover is threadingly connected with the filling box, and the upper part of a valve stem is provided with a hand-operated device for opening and closing the valve. When the valve stem is completely opened, the valve can be used as a check valve; when the valve stem is closed, the valve can be used as a stop valve, one valve can be used for many purposes, the pipeline is compact, the pressure drop is reduced, the cost is lowered, and the stop check valve is applicable to the development trend of the valves.
Description
Technical field
The present invention relates to valve technology field, especially a kind of industrial refrigeration screw down nonreturn valve.
Background technique
At the main frame valve no matter China be refrigerator, or the valve major part on container and refrigerator pipeline is that a valve is special.Main exhaust valve as refrigerator is exactly single stop valve.By refrigerator working specification, during compressor start, starting electrical machinery need open high pressure air exhaust valve rapidly, and slowly opens Aspirating valves, makes exhaust pressure be no more than 1.5MPa.In addition, first open the liquid supply valve of circulation liquid receiver and the liquid feed valve of ammonia pump during ammonia pump work, make to fill ammoniacal liquor in ammonia pump, then open liquid valve.When ammonia pump shuts down, should liquid valve be closed, or safety check is set in ammonia pump inlet, prevent the refluence of liquid medium, so need to design a kind of screw down nonreturn valve.
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 screw down nonreturn valve of multi-purpose valve.
The technical solution adopted for the present invention to solve the technical problems is: provide a kind of industrial refrigeration screw down nonreturn valve, comprise valve seat, valve gap, valve rod, flap, flap pad, pressing plate, spring, flange gasket, cushion pad, filler pad, filler, sealing cover, seal washer, the manual operating device of flange screw and switch valve, described valve seat is provided with inlet tube, outer pipe, valve seat flange and sealing surface of seat, described valve gap is provided with directed cavity, bonnet flange, valve stem casing and Stuffing box, described valve seat is connected by flange screw with valve gap, flange gasket seal is used in centre, spring is provided with in described flap, motion is opened and closed up and down in directed cavity, cushion pad is provided with bottom directed cavity, filler pad is provided with in described Stuffing box, filler and sealing cover, two road seal rings are provided with in sealing cover, sealing cover is threaded with Stuffing box, described valve rod top is provided with the manual operating device of switch valve.
Further, described manual operating device is handwheel.
Further, described manual operating device is that the valve be threaded with valve stem casing emits.
Further, described valve seat is right-angle type valve seat, its inlet tube and outer pipe median perpendicular, the center line of its sealing surface of seat and the center line of outer pipe angle in 90 °.
Further, described valve seat is straight-through type valve seat, and its inlet tube overlaps with outer pipe center line, the center line of sealing surface of seat and the center line of outer pipe angle at 45 °.
Further, described valve seat flange and bonnet flange are round flange or square flange.
When valve rod is opened completely, safety check can be made and use, when valve rod is closed, stop valve can be made and use, multi-purpose valve.
The invention has the beneficial effects as follows: multi-purpose valve, pipeline can be made compact, lower pressure drop, reduce costs, adapt to valve development trend.
Accompanying drawing explanation
Below in conjunction with accompanying drawing embodiment, the present invention is further described.
Fig. 1 is the structural representation of the embodiment of the present invention 1.
Fig. 2 is the structural representation of the embodiment of the present invention 2.
In figure: 1. valve seat, 2. valve gap, 3. valve rod, 4. flap, 5. flap pad, 6. pressing plate, 7. spring, 8. flange gasket, 9. cushion pad, 10. filler pad, 11. fillers, 12. sealing covers, 13. seal washers, 14. flange screws, 15. handwheels, 16. valves emit, 1.1. inlet pipe mouth, 1.2. outlet spout, 1.3. valve seat flange, 1.4. sealing surface of seat, 2.1. directed cavity, 2.2. bonnet flange, 2.3. valve stem casing, 2.4. Stuffing box.
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 seat 1, valve gap 2, valve rod 3, flap 4, flap pad 5, pressing plate 6, spring 7, flange gasket 8, cushion pad 9, filler pad 10, filler 11, sealing cover 12, seal washer 13, flange screw 14 and handwheel 15, valve seat 1 is provided with inlet tube 1.1, outer pipe 1.2, valve seat flange 1.3 and sealing surface of seat 1.4, valve gap 2 is provided with directed cavity 2.1, bonnet flange 2.2, valve stem casing 2.3 and Stuffing box 2.4, valve seat 1 is connected by flange screw 14 with valve gap 2, centre flange gasket 8 seals, spring 7 is provided with in flap 4, motion is opened and closed up and down in directed cavity 2.1, cushion pad 9 is provided with bottom directed cavity 2.1, filler pad 10 is provided with in Stuffing box 2.4, filler 11 and sealing cover 12, two road seal rings 13 are provided with in sealing cover 12, sealing cover 12 is threaded with Stuffing box 2.4, valve rod 3 top is provided with the handwheel 15 of switch valve.
In the present embodiment, valve seat 1 is right-angle type valve seat, its inlet tube 1.1 and outer pipe 1.2 median perpendicular, the center line of its sealing surface of seat 1.4 and the center line angle in 90 ° of outer pipe 1.2.
As shown in Figure 2, a kind of industrial refrigeration straight-through type screw down nonreturn valve, comprise valve seat 1, valve gap 2, valve rod 3, flap 4, flap pad 5, pressing plate 6, spring 7, flange gasket 8, cushion pad 9, filler pad 10, filler 11, sealing cover 12, seal washer 13, flange screw 14 and valve emit 16, valve seat 1 is provided with inlet tube 1.1, outer pipe 1.2, valve seat flange 1.3 and sealing surface of seat 1.4, valve gap 2 is provided with directed cavity 2.1, bonnet flange 2.2, valve stem casing 2.3 and Stuffing box 2.4, valve seat 1 is connected by flange screw 14 with valve gap 2, centre flange gasket 8 seals, spring 7 is provided with in flap 4, motion is opened and closed up and down in directed cavity 2.1, cushion pad 9 is provided with bottom directed cavity 2.1, filler pad 10 is provided with in Stuffing box 2.4, filler 11 and sealing cover 12, two road seal rings 13 are provided with in sealing cover 12, sealing cover 12 is threaded with Stuffing box 2.4, the valve be threaded with valve stem casing 2.3 that valve rod top is provided with switch valve emits 16.
In the present embodiment, valve seat 1 is straight-through type valve seat, and its inlet tube 1.1 overlaps with outer pipe 1.2 center line, the center line of sealing surface of seat 1.4 and the center line angle at 45 ° of outer pipe 1.2.
In addition, valve seat flange 1.3 and bonnet flange 2.2 are round flange or square flange.
When valve rod 3 is opened completely, safety check can be made and use, when valve rod 3 is closed, stop valve can be made and use, multi-purpose valve.
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 (6)
1. an industrial refrigeration screw down nonreturn valve, comprises valve seat (1), valve gap (2), valve rod (3), flap (4), flap pad (5), pressing plate (6), spring (7), flange gasket (8), cushion pad (9), filler pad (10), filler (11), sealing cover (12), seal washer (13), the manual operating device of flange screw (14) and switch valve, is characterized in that: described valve seat (1) is provided with inlet tube (1.1), outer pipe (1.2), valve seat flange (1.3) and sealing surface of seat (1.4), described valve gap (2) is provided with directed cavity (2.1), bonnet flange (2.2), valve stem casing (2.3) and Stuffing box (2.4), described valve seat (1) is connected by flange screw (14) with valve gap (2), middle flange gasket (8) seals, spring (7) is provided with in described flap (4), motion is opened and closed up and down in directed cavity (2.1), directed cavity (2.1) bottom is provided with cushion pad (9), is provided with filler pad (10) in described Stuffing box (2.4), filler (11) and sealing cover (12), two road seal rings (13) are provided with in sealing cover (12), sealing cover (12) is threaded with Stuffing box (2.4), and described valve rod (3) top is provided with the manual operating device of switch valve.
2. a kind of industrial refrigeration screw down nonreturn valve according to claim 1, is characterized in that: described manual operating device is handwheel (15).
3. a kind of industrial refrigeration screw down nonreturn valve according to claim 1, is characterized in that: described manual operating device is that the valve be threaded with valve stem casing (2.3) emits (16).
4. a kind of industrial refrigeration screw down nonreturn valve according to claim 1, it is characterized in that: described valve seat (1) is right-angle type valve seat, its inlet tube (1.1) and outer pipe (1.2) median perpendicular, the center line of its sealing surface of seat (1.4) and the center line angle in 90 ° of outer pipe (1.2).
5. a kind of industrial refrigeration screw down nonreturn valve according to claim 1, it is characterized in that: described valve seat (1) is straight-through type valve seat, its inlet tube (1.1) overlaps with outer pipe (1.2) center line, the center line of sealing surface of seat (1.4) and the center line angle at 45 ° of outer pipe (1.2).
6. a kind of industrial refrigeration screw down nonreturn valve according to claim 1, is characterized in that: described valve seat flange (1.3) and bonnet flange (2.2) are round flange or square flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510311668.2A CN104896155A (en) | 2015-06-09 | 2015-06-09 | Stop check valve for industrial refrigeration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510311668.2A CN104896155A (en) | 2015-06-09 | 2015-06-09 | Stop check valve for industrial refrigeration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104896155A true CN104896155A (en) | 2015-09-09 |
Family
ID=54029007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510311668.2A Pending CN104896155A (en) | 2015-06-09 | 2015-06-09 | Stop check valve for industrial refrigeration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104896155A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104896152A (en) * | 2015-06-11 | 2015-09-09 | 许炎章 | Check valve for industrial refrigeration |
| CN107035899A (en) * | 2017-04-28 | 2017-08-11 | 武汉武船机电模块有限责任公司 | A kind of kingston valve with check function |
| CN108593283A (en) * | 2018-07-05 | 2018-09-28 | 中国海洋石油集团有限公司 | A kind of test device and method of the connection transmission of simulation deep-sea ROV drive motors |
| CN111237535A (en) * | 2020-03-26 | 2020-06-05 | 一重集团大连工程技术有限公司 | Multifunctional one-way valve capable of being opened and closed actively and function adjusting method thereof |
| CN111271507A (en) * | 2020-03-26 | 2020-06-12 | 一重集团大连工程技术有限公司 | Single-valve-element multifunctional valve and function adjusting method thereof |
| US11598435B2 (en) | 2019-05-08 | 2023-03-07 | Parker-Hannifin Corporation | Stop/check/expansion plug valve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009121611A (en) * | 2007-11-15 | 2009-06-04 | Tlv Co Ltd | Vacuum break valve |
| CN202708220U (en) * | 2012-05-30 | 2013-01-30 | 中国船舶重工集团公司第七一九研究所 | Noise reduction structure of pump pipeline valve applied to water supplying and draining system |
| CN204140970U (en) * | 2014-09-19 | 2015-02-04 | 宁波埃美柯铜阀门有限公司 | Cast iron screw down nonreturn valve |
| CN204284553U (en) * | 2014-10-26 | 2015-04-22 | 彭芹 | A kind of novel stop check valve |
| CN204717073U (en) * | 2015-06-09 | 2015-10-21 | 常州埃姆基冷冻设备有限公司 | Industrial refrigeration screw down nonreturn valve |
-
2015
- 2015-06-09 CN CN201510311668.2A patent/CN104896155A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009121611A (en) * | 2007-11-15 | 2009-06-04 | Tlv Co Ltd | Vacuum break valve |
| CN202708220U (en) * | 2012-05-30 | 2013-01-30 | 中国船舶重工集团公司第七一九研究所 | Noise reduction structure of pump pipeline valve applied to water supplying and draining system |
| CN204140970U (en) * | 2014-09-19 | 2015-02-04 | 宁波埃美柯铜阀门有限公司 | Cast iron screw down nonreturn valve |
| CN204284553U (en) * | 2014-10-26 | 2015-04-22 | 彭芹 | A kind of novel stop check valve |
| CN204717073U (en) * | 2015-06-09 | 2015-10-21 | 常州埃姆基冷冻设备有限公司 | Industrial refrigeration screw down nonreturn valve |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104896152A (en) * | 2015-06-11 | 2015-09-09 | 许炎章 | Check valve for industrial refrigeration |
| CN107035899A (en) * | 2017-04-28 | 2017-08-11 | 武汉武船机电模块有限责任公司 | A kind of kingston valve with check function |
| CN108593283A (en) * | 2018-07-05 | 2018-09-28 | 中国海洋石油集团有限公司 | A kind of test device and method of the connection transmission of simulation deep-sea ROV drive motors |
| US11598435B2 (en) | 2019-05-08 | 2023-03-07 | Parker-Hannifin Corporation | Stop/check/expansion plug valve |
| CN111237535A (en) * | 2020-03-26 | 2020-06-05 | 一重集团大连工程技术有限公司 | Multifunctional one-way valve capable of being opened and closed actively and function adjusting method thereof |
| CN111271507A (en) * | 2020-03-26 | 2020-06-12 | 一重集团大连工程技术有限公司 | Single-valve-element multifunctional valve and function adjusting method thereof |
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| 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: 20150909 |