CN204664505U - Industrial refrigeration straight-through type screw down nonreturn valve - Google Patents
Industrial refrigeration straight-through type screw down nonreturn valve Download PDFInfo
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- CN204664505U CN204664505U CN201520358183.4U CN201520358183U CN204664505U CN 204664505 U CN204664505 U CN 204664505U CN 201520358183 U CN201520358183 U CN 201520358183U CN 204664505 U CN204664505 U CN 204664505U
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- valve
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- valve rod
- type screw
- screw down
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Abstract
The utility model relates to valve technology field, especially a kind of industrial refrigeration straight-through type screw down nonreturn valve.A kind of industrial refrigeration straight-through type screw down nonreturn valve, comprise valve seat, valve gap, valve rod and handwheel, described valve seat has horizontal pipeline and oblique pipeline, and one end of described horizontal pipeline is import, and the other end is outlet, flap is provided with between described oblique pipeline and horizontal pipeline, flap connects valve rod by spring, and valve rod overcoat has valve stem casing, and the top of valve rod connects handwheel, described valve gap and valve seat Flange joint, valve gap top is provided with the lock of locking valve rod.Multi-purpose valve, adapts to valve development trend, pipeline can be made compact, simple to operate, reduce costs, and is the desirable alternative of part refrigeration valve.
Description
Technical field
The utility model relates to valve technology field, especially a kind of industrial refrigeration straight-through type 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, action when avoiding refrigeration compressor to start, reduce ammonia pump work time be prevent medium from flowing backwards use valve quantity.
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 straight-through type 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 straight-through type screw down nonreturn valve, comprise valve seat, valve gap, valve rod and handwheel, described valve seat has horizontal pipeline and oblique pipeline, one end of described horizontal pipeline is import, the other end is outlet, flap is provided with between described oblique pipeline and horizontal pipeline, flap connects valve rod by spring, valve rod overcoat has valve stem casing, valve rod, top connect handwheel, described valve gap and valve seat Flange joint, valve gap top is provided with locks the lock of valve rod.
Further, the angle between described horizontal pipeline and oblique pipeline is 45 °.
The beneficial effects of the utility model are: multi-purpose valve, adapt to valve development trend, pipeline can be made compact, simple to operate, reduce costs, and are the desirable alternatives of part refrigeration valve.
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 seat, 2. valve gap, 3. valve rod, 4. handwheel, 5. flap, 6. spring, 7. valve stem casing, 8. lock, 11. horizontal pipelines, 12. oblique pipelines, 11a. import, 11b. exports.
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 straight-through type screw down nonreturn valve, comprise valve seat 1, valve gap 2, valve rod 3 and handwheel 4, valve seat 1 has horizontal pipeline 11 and oblique pipeline 12, one end of horizontal pipeline 11 is import 11a, the other end is outlet 11b, is provided with flap 5, flap 5 connects valve rod 3 by spring 6 between oblique pipeline 12 and horizontal pipeline 11, valve rod 3 overcoat has valve stem casing 7, the top of valve rod 3 connects handwheel 4, and valve gap 2 and valve seat 1 Flange joint, valve gap 2 top is provided with the lock 8 of locking valve rod 3.
Further, the angle between horizontal pipeline 11 and oblique pipeline 12 is 45 °.
When this valve is used as safety valve, flap 5 is formed with valve seat 1 and seals under spring 6 acts on, and adjustment spring force and medium active force balance each other, and lock valve rod with lock 8, valve is opened under pressure.
When this valve is used as screw down nonreturn valve, unclamp lock 8, make valve rod 3 not by the active force of lock 8.Rotate counterclockwise handwheel 4, valve makes flap 5 and valve seat 1 seal by back pressure active force, and now valve plays the effect of safety check.Clockwise direction rotation hand wheel 4, valve rod 3 moves down, and spring 6 is compression under valve rod 3 acts on, and block media flow, this valve plays again the effect of stop valve.
When this valve is used as stop safety valve, valve is adjusted to the opened by pressure of regulation, and marks on valve rod 3 and lock 8 are fixed, back out lock 8, valve rod 3 can be moved up and down.When this valve is installed on pipeline or container, when pipeline or container work pressure are less than authorized pressure, rotation hand wheel 4, namely circulation valve rod 3 being moved down block medium is valve-closed state.Now valve rod 3 is in the mark position of the valve rod 3 mixed up with lock 8, valve seal.When pipeline or container are due under some operating conditions, pressure exceedes specified value, and valve just opens pressure release automatically, and under pipeline or container return to nominal situation, valve is just closed automatically, and this valve plays again the effect of safety valve.Rotation hand wheel 4, valve rod 3 is moved up, and spring 6 is in free state, and now medium is just flowed to area of low pressure by high-pressure area, and valve is in opening state again.
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 (2)
1. an industrial refrigeration straight-through type screw down nonreturn valve, comprise valve seat (1), valve gap (2), valve rod (3) and handwheel (4), it is characterized in that: described valve seat (1) has horizontal pipeline (11) and oblique pipeline (12), one end of described horizontal pipeline (11) is import (11a), the other end is outlet (11b), flap (5) is provided with between described oblique pipeline (12) and horizontal pipeline (11), flap (5) connects valve rod (3) by spring (6), valve rod (3) overcoat has valve stem casing (7), the top of valve rod (3) connects handwheel (4), described valve gap (2) and valve seat (1) Flange joint, valve gap (2) top is provided with the lock (8) of locking valve rod (3).
2. industrial refrigeration straight-through type screw down nonreturn valve according to claim 1, is characterized in that: the angle between described horizontal pipeline (11) and oblique pipeline (12) is 45 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520358183.4U CN204664505U (en) | 2015-05-28 | 2015-05-28 | Industrial refrigeration straight-through type screw down nonreturn valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520358183.4U CN204664505U (en) | 2015-05-28 | 2015-05-28 | Industrial refrigeration straight-through type screw down nonreturn valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204664505U true CN204664505U (en) | 2015-09-23 |
Family
ID=54134888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520358183.4U Expired - Fee Related CN204664505U (en) | 2015-05-28 | 2015-05-28 | Industrial refrigeration straight-through type screw down nonreturn valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204664505U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105042128A (en) * | 2015-06-04 | 2015-11-11 | 许炎章 | Straight-through type stop check valve for industrial refrigeration |
-
2015
- 2015-05-28 CN CN201520358183.4U patent/CN204664505U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105042128A (en) * | 2015-06-04 | 2015-11-11 | 许炎章 | Straight-through type 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150923 Termination date: 20160528 |