CN204187111U - A kind of ammonia valve for refrigeration system - Google Patents
A kind of ammonia valve for refrigeration system Download PDFInfo
- Publication number
- CN204187111U CN204187111U CN201420671737.1U CN201420671737U CN204187111U CN 204187111 U CN204187111 U CN 204187111U CN 201420671737 U CN201420671737 U CN 201420671737U CN 204187111 U CN204187111 U CN 204187111U
- Authority
- CN
- China
- Prior art keywords
- valve
- gap
- valve rod
- rod
- ammonia
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a kind of ammonia valve for refrigeration system, relate to valve technology field, valve body is provided with valve gap, also comprise the valve head stretched to through valve gap on the valve rod of valve body and valve rod, be provided with the spool coordinated with threaded stem in valve body, the top of valve rod is provided with handwheel, and valve head is provided with spring ring, arrange a back seal pad in valve rod side relative to valve gap, on valve gap, side relative to valve rod arranges the back seal projection with sealing process.The utility model improves seal degree when valve rod and valve gap close, and solves the problem of ammonia leakage during plant maintenance maintenance.
Description
Technical field
The utility model relates to valve technology field, specifically a kind of valving for ammonia refrigeration system.
Background technique
Ammonia valve is a kind of valve be widely used on fluid circuit, especially for the ammonia valve of refrigeration system, be made up of parts such as valve body, valve gap, valve rod, valve head, valve seat, screw rod and handwheels, its using method is very simple, staff rotates handwheel, the rise and fall of valve rod are realized by the screw-thread fit between valve rod and valve gap, and then realize the rise and fall of being fixed on the valve head of valve rod bottom, carry out opening and closing valve seat by valve head, complete the operation of the through and off of ammonia valve., easily there is ammonia when the Maintenance and Repair of equipment and reveal in existing ammonia valve many employings taper sealing.
Technical problem to be solved in the utility model is: provide a kind of ammonia valve, prevent the leakage of ammonia when being convenient to overhaul of the equipments.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of ammonia valve for refrigeration system, comprise valve body and be arranged on the valve seat in valve body, described valve body is provided with valve gap, also comprise the valve head stretched to through described valve gap on the valve rod of described valve body and valve rod, the spool coordinated with described threaded stem is provided with in described valve body, the top of described valve rod is provided with handwheel, described valve head is provided with spring ring, on described valve rod, side relative to valve gap arranges a back seal pad, on valve gap, side relative to valve rod arranges the back seal projection with sealing process.
As a preferred implementation, the material of described back seal pad is teflon.
After adopting technique scheme, originally benefiting from novel beneficial effect is: owing to arranging a back seal pad in valve rod side relative to valve gap, on valve gap, side relative to valve rod arranges the projection with sealing process, improve seal degree when valve rod and valve gap close, solve the problem of ammonia leakage during plant maintenance maintenance.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model for the ammonia valve of refrigeration system;
Fig. 2 is the partial enlarged drawing of the valve of ammonia shown in Fig. 1.
Embodiment
Below in conjunction with accompanying drawing, the utility model is elaborated:
As shown in Figure 1 and Figure 2, in figure: 1, valve gap, 2, back seal is protruding, 3, back seal pad, 4, spool, 5, valve rod, 6, spring ring, 7, valve head.
It comprises valve body and is arranged on the valve seat in valve body, described valve body is provided with valve gap, also comprise the valve head 7 stretched to through described valve gap on the valve rod 5 of described valve body and valve rod 5, the spool 3 with described valve rod 5 screw-thread fit is provided with in described valve body, the top of described valve rod 5 is provided with handwheel, described valve head 7 is provided with spring ring 6, and arrange a back seal pad 4 in described valve rod 5 side relative to valve gap 1, on valve gap 1, side relative to valve rod 5 arranges the back seal projection 2 with sealing process.
When equipment needs repairing, for preventing ammonia from revealing, in Fig. 2, operated by personnel's valve rod 5 contacts closed with valve gap 1, and the back seal pad 4 on valve rod 5 fits tightly with the back seal projection 2 on valve gap 6, reaches the effect preventing ammonia from revealing.
The utility model is not limited to above-mentioned embodiment, and all are based on technical conceive of the present utility model, and done structural improvement, all falls among protection domain of the present utility model.
Claims (2)
1. the ammonia valve for refrigeration system, comprise valve body and be arranged on the valve seat in described valve body, described valve body is provided with valve gap, also comprise the valve head stretched to through described valve gap on the valve rod of described valve body and valve rod, the spool coordinated with described threaded stem is provided with in described valve body, the top of described valve rod is provided with handwheel, it is characterized in that: on described valve head, spring ring is set, on described valve rod, side relative to valve gap arranges back seal pad, and on described valve gap, side relative to valve rod arranges back seal projection.
2. the ammonia valve for refrigeration system according to claim 1, is characterized in that: the material of described back seal pad is teflon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420671737.1U CN204187111U (en) | 2014-11-12 | 2014-11-12 | A kind of ammonia valve for refrigeration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420671737.1U CN204187111U (en) | 2014-11-12 | 2014-11-12 | A kind of ammonia valve for refrigeration system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204187111U true CN204187111U (en) | 2015-03-04 |
Family
ID=52619113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420671737.1U Expired - Fee Related CN204187111U (en) | 2014-11-12 | 2014-11-12 | A kind of ammonia valve for refrigeration system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204187111U (en) |
-
2014
- 2014-11-12 CN CN201420671737.1U patent/CN204187111U/en not_active Expired - Fee Related
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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: 20150304 Termination date: 20161112 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |