CN207634706U - A kind of industrial refrigeration screw down nonreturn valve - Google Patents
A kind of industrial refrigeration screw down nonreturn valve Download PDFInfo
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- CN207634706U CN207634706U CN201721456357.6U CN201721456357U CN207634706U CN 207634706 U CN207634706 U CN 207634706U CN 201721456357 U CN201721456357 U CN 201721456357U CN 207634706 U CN207634706 U CN 207634706U
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- valve
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- valve seat
- sealing
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Abstract
The utility model is related to valve technology field, especially a kind of industrial refrigeration screw down nonreturn valve.A kind of industrial refrigeration screw down nonreturn valve, the valve seat is equipped with inlet tube, outlet, valve seat flange and sealing surface of seat, the valve deck is equipped with directed cavity, bonnet flange, valve stem sleeve and seal chamber, the valve seat is connected with valve deck by flange screw, centre flange gasket seal, the directed cavity bottom is equipped with cushion pad, the second anti-sealing element and sealing cover are equipped in the seal chamber, three seals washer is equipped in sealing cover, sealing cover is threadedly coupled with seal chamber, and the valve rod top is equipped with the hand gear of controlled valve.When valve rod is opened completely, check-valves use can be made, when valve rod is closed, shut-off valve use can be made, multi-purpose valve can make pipeline compact, lower pressure drop, reduce cost, adapt to valve development trend.
Description
Technical field
The utility model is related to valve technology field more particularly to a kind of industrial refrigeration screw down nonreturn valves.
Background technology
Valve on the host valve or container and refrigerator pipeline of China's either refrigeration machine is largely a valve
It is special.If the main exhaust valve of refrigeration machine is exactly single shut-off valve.By refrigeration machine operating instruction, when compressor start, start electricity
Machine need to open rapidly high pressure air exhaust valve, and slowly open inlet valve, and pressure at expulsion is made to be no more than 1.5MPa.In addition, ammonia pump works
When be first turned on cycle liquid receiver supplying valve and ammonia pump liquid feed valve, make to fill ammoniacal liquor in ammonia pump, be then turned on liquid valve.Ammonia
When pump shuts down, liquid valve should be closed, or check-valves is set in ammonia pump entrance, the refluence of liquid medium be prevented, so needing
Design a kind of screw down nonreturn valve.
Utility model content
The utility model provides a kind of industrial refrigeration screw down nonreturn valve to solve the above-mentioned deficiency of the prior art.
The above-mentioned purpose of the utility model is realized by technical solution below：A kind of industrial refrigeration cut-off non-return
Valve, including valve seat, valve deck, valve rod, flap, the first anti-sealing element, flange gasket, cushion pad, the second anti-sealing element, sealing cover,
The hand gear of seal washer, flange screw and controlled valve, the valve seat are equipped with inlet tube, outlet, valve seat flange and valve
Seat sealing surface, the valve deck are equipped with directed cavity, bonnet flange, valve stem sleeve and seal chamber, and the valve seat and valve deck are by flange screw
Connection, centre flange gasket seal, the directed cavity bottom are equipped with cushion pad, the second anti-sealing element are equipped in the seal chamber
And sealing cover, sealing cover is interior to be equipped with three seals washer, and sealing cover is threadedly coupled with seal chamber, and the valve rod top is equipped with switch
The hand gear of valve.
Further, the hand gear is metal cap, and metal cap side is equipped with the slot for grafting valve rod.
Further, it is equipped with several sealing rings in the metal cap, effective sealing is formed with valve stem sleeve.
Further, the hand gear is the bonnet being threadedly coupled with valve stem sleeve.
Further, the valve seat is right-angle type valve seat, inlet tube and outlet median perpendicular, sealing surface of seat
The center line of center line and outlet angle in 90 °.
Further, the valve seat is through type valve seat, and inlet tube is overlapped with outlet center line, in sealing surface of seat
The center line of line and outlet angle at 45 °.
Further, the valve seat flange and bonnet flange are round flange or square flange.
When valve rod is opened completely, check-valves use can be made, when valve rod is closed, shut-off valve use, multi-purpose valve can be made.
The utility model has the beneficial effects that：Multi-purpose valve can make pipeline compact, lower pressure drop, reduce cost, adapt to valve
Door development trend.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model embodiment one.
Fig. 2 is the structural schematic diagram of the utility model embodiment two.
In figure：1. valve seat, 2. valve decks, 3. valve rods, 4. flaps, 5. first anti-sealing elements, 6. flange gaskets, 7. cushion pads,
8. the second anti-sealing element, 9. slots, 10. sealing covers, 11. seal washers, 12. flange screws, 13. metal caps, 14. valves
Cap, 1.1. is into nozzle, 1.2. outlet spouts, 1.3. valve seat flanges, 1.4. sealing surface of seats, 2.1. directed cavities, 2.2. bonnet flanges,
2.3. valve stem sleeve, 2.4. seal chambers.
Specific implementation mode
The utility model is described in further detail with reference to embodiment.
As shown in Figure 1, a kind of industrial refrigeration right-angle type screw down nonreturn valve, including valve seat 1, valve deck 2, valve rod 3, flap 4,
First anti-sealing element 5, flange gasket 6, cushion pad 7, the second anti-sealing element 8, sealing cover 10, seal washer 11, flange screw 12
With metal cap 13, valve seat 1 is equipped with inlet tube 1.1, outlet 1.2, valve seat flange 1.3 and sealing surface of seat 1.4, and valve deck 2 is equipped with
Directed cavity 2.1, bonnet flange 2.2, valve stem sleeve 2.3 and seal chamber 2.4, valve seat 1 and valve deck 2 are connected by flange screw 12, intermediate
It is sealed with flange gasket 6,2.1 bottom of directed cavity is equipped with cushion pad 7, and the second anti-sealing element 8 and sealing cover are equipped in seal chamber 2.4
10, sealing cover 10 is interior to be equipped with three seals washer 11, and sealing cover 10 is threadedly coupled with seal chamber 2.4, and 3 top of valve rod is equipped with switch
The metal cap 13 of valve, 13 side of metal cap are equipped with the slot 9 for grafting valve rod 3；It is equipped with several in the metal cap 13
Sealing ring forms effective sealing with valve stem sleeve 2.3.
In the present embodiment, valve seat 1 is right-angle type valve seat, inlet tube 1.1 and 1.2 median perpendicular of outlet, valve seat
The center line of sealing surface 1.4 and the center line angle in 90 ° of outlet 1.2.
As shown in Fig. 2, a kind of industrial refrigeration through type screw down nonreturn valve, including valve seat 1, valve deck 2, valve rod 3, flap 4,
First anti-sealing element 5, flange gasket 6, cushion pad 7, the second anti-sealing element 8, sealing cover 9, seal washer 11,12 and of flange screw
Bonnet 14, valve seat 1 are equipped with inlet tube 1.1, outlet 1.2, valve seat flange 1.3 and sealing surface of seat 1.4, and valve deck 2, which is equipped with, to be oriented to
Chamber 2.1, bonnet flange 2.2, valve stem sleeve 2.3 and seal chamber 2.4, valve seat 1 and valve deck 2 are connected by flange screw 12, intermediate usage
Blue gasket 6 seals, and 2.1 bottom of directed cavity is equipped with cushion pad 7, and the second anti-sealing element 8 and sealing cover 10 are equipped in seal chamber 2.4,
Three seals washer 11 is equipped in sealing cover 10, sealing cover 10 is threadedly coupled with seal chamber 2.4, and valve rod top is equipped with controlled valve
The bonnet 14 being threadedly coupled with valve stem sleeve 2.3.
In the present embodiment, valve seat 1 is through type valve seat, and inlet tube 1.1 is overlapped with 1.2 center line of outlet, and valve seat is close
The center line of cover 1.4 and the center line angle at 45 ° of outlet 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, check-valves use can be made, when valve rod 3 is closed, shut-off valve use can be made, a valve is more
With.
The above specific embodiments are only exemplary, is to preferably make skilled artisans appreciate that originally
Patent, be not to be construed as include to this patent range limitation；As long as appointing according to made by spirit disclosed in this patent
How with change or modification, the range that this patent includes is each fallen within.
Claims (7)
1. a kind of industrial refrigeration screw down nonreturn valve, including valve seat (1), valve deck (2), valve rod (3), flap (4), the first anti-sealing
Part (5), flange gasket (6), cushion pad (7), the second anti-sealing element（8）, sealing cover (10), seal washer (11), flange screw
(12) and the hand gear of controlled valve, it is characterised in that：The valve seat (1) is equipped with inlet tube (1.1), outlet (1.2), valve
Seat flange (1.3) and sealing surface of seat (1.4), the valve deck (2) are equipped with directed cavity (2.1), bonnet flange (2.2), valve stem sleeve
(2.3) it is connected by flange screw (12) with seal chamber (2.4), the valve seat (1) and valve deck (2), intermediate flange gasket (6) is close
Envelope, directed cavity (2.1) bottom are equipped with cushion pad (7), the second anti-sealing element are equipped in the seal chamber (2.4)（8）With it is close
It covers (10), three seals washer (11) is equipped in sealing cover (10), sealing cover (10) is threadedly coupled with seal chamber (2.4), institute
State the hand gear that valve rod (3) top is equipped with controlled valve.
2. industrial refrigeration screw down nonreturn valve according to claim 1, it is characterised in that：The hand gear is metal cap
(13), metal cap (13) side is equipped with the slot for grafting valve rod (3)（9）.
3. industrial refrigeration screw down nonreturn valve according to claim 1, it is characterised in that：The metal cap (13) is if interior be equipped with
Dry sealing ring.
4. industrial refrigeration screw down nonreturn valve according to claim 1, it is characterised in that：The hand gear is and valve stem sleeve
(2.3) bonnet (14) being threadedly coupled.
5. industrial refrigeration screw down nonreturn valve according to claim 1, it is characterised in that：The valve seat (1) is right-angle type valve
Seat, inlet tube (1.1) and outlet (1.2) median perpendicular, center line and the outlet (1.2) of sealing surface of seat (1.4)
Center line angle in 90 °.
6. industrial refrigeration screw down nonreturn valve according to claim 1, it is characterised in that：The valve seat (1) is through type valve
Seat, inlet tube (1.1) are overlapped with outlet (1.2) center line, in the center line and outlet (1.2) of sealing surface of seat (1.4)
Line angle at 45 °.
7. industrial refrigeration screw down nonreturn valve according to claim 1, it is characterised in that：The valve seat flange (1.3) and valve
Lid flange (2.2) is round flange or square flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721456357.6U CN207634706U (en) | 2017-11-04 | 2017-11-04 | A kind of industrial refrigeration screw down nonreturn valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721456357.6U CN207634706U (en) | 2017-11-04 | 2017-11-04 | A kind of industrial refrigeration screw down nonreturn valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207634706U true CN207634706U (en) | 2018-07-20 |
Family
ID=62859617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721456357.6U Active CN207634706U (en) | 2017-11-04 | 2017-11-04 | A kind of industrial refrigeration screw down nonreturn valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207634706U (en) |
-
2017
- 2017-11-04 CN CN201721456357.6U patent/CN207634706U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 200000 building 3, No. 7693, Daye Road, Fengcheng Town, Fengxian District, Shanghai Patentee after: Shanghai Youfu Technology Co.,Ltd. Address before: 200000 room 5128, No. 868, Jinqi Road, Fengxian District, Shanghai Patentee before: SHANGHAI YOUFU ADSORPTION REFRIGERATION Co.,Ltd. |
|
| CP03 | Change of name, title or address |