CN204717073U - Industrial refrigeration screw down nonreturn valve - Google Patents
Industrial refrigeration screw down nonreturn valve Download PDFInfo
- Publication number
- CN204717073U CN204717073U CN201520395224.7U CN201520395224U CN204717073U CN 204717073 U CN204717073 U CN 204717073U CN 201520395224 U CN201520395224 U CN 201520395224U CN 204717073 U CN204717073 U CN 204717073U
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- China
- Prior art keywords
- valve
- flange
- seat
- valve seat
- industrial refrigeration
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- 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
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- Lift Valve (AREA)
- Valve Housings (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The utility model relates to valve technology field, especially a kind of industrial refrigeration screw down nonreturn valve.A kind of industrial refrigeration screw down nonreturn 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.When valve rod is opened completely, can make safety check and use, when valve rod is closed, can make stop valve and use, multi-purpose valve, can make pipeline compact, lowers pressure drop, reduces costs, and adapts to valve development trend.
Description
Technical field
The utility model 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.
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 screw down nonreturn valve of multi-purpose valve.
The utility model solves the technological scheme that its technical problem adopts: 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 beneficial effects of the utility model are: multi-purpose valve, and pipeline can be made compact, lower pressure drop, reduce costs, and adapt to valve development trend.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the structural representation of the utility model embodiment 1.
Fig. 2 is the structural representation of the utility model embodiment 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
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 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 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 (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. industrial refrigeration screw down nonreturn valve according to claim 1, is characterized in that: described manual operating device is handwheel (15).
3. 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. 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. 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. 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 |
|---|---|---|---|
| CN201520395224.7U CN204717073U (en) | 2015-06-09 | 2015-06-09 | Industrial refrigeration screw down nonreturn valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520395224.7U CN204717073U (en) | 2015-06-09 | 2015-06-09 | Industrial refrigeration screw down nonreturn valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204717073U true CN204717073U (en) | 2015-10-21 |
Family
ID=54316073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520395224.7U Expired - Fee Related CN204717073U (en) | 2015-06-09 | 2015-06-09 | Industrial refrigeration screw down nonreturn valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204717073U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104896155A (en) * | 2015-06-09 | 2015-09-09 | 许炎章 | Stop check valve for industrial refrigeration |
-
2015
- 2015-06-09 CN CN201520395224.7U patent/CN204717073U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104896155A (en) * | 2015-06-09 | 2015-09-09 | 许炎章 | Stop check valve for industrial refrigeration |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151021 Termination date: 20160609 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |