CN204459190U - Electronic single-seat adjusting valve - Google Patents
Electronic single-seat adjusting valve Download PDFInfo
- Publication number
- CN204459190U CN204459190U CN201520121967.5U CN201520121967U CN204459190U CN 204459190 U CN204459190 U CN 204459190U CN 201520121967 U CN201520121967 U CN 201520121967U CN 204459190 U CN204459190 U CN 204459190U
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- valve
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- slit
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Abstract
The utility model discloses a kind of electronic single-seat adjusting valve, comprise valve body, valve seat, spool, sleeve and valve rod, described valve body has valve pocket, the entrance and exit be communicated with valve pocket, described valve seat is located at the entry position in valve pocket, described sleeve arranges in described valve pocket and pushes down described valve seat, described spool is located in sleeve, selectively combine with described valve seat bottom it and be separated, side face and described sleeve lining are fitted, described valve rod one end is connected with described spool, the other end stretches out outside housing, described sleeve side face has communication port, the slit of the structure of described communication port to be bottom be even width, top is for width with highly much larger than the window of slit width.The utility model have can carry out Flow-rate adjustment in proportion to impure medium and do not occur block advantage, can adapt to work under severe working condition.
Description
Technical field
The utility model belongs to valve technology field, is specifically related to a kind of electronic single-seat adjusting valve.
Background technique
Modulating valve has another name called control valve, in industrial automation process control field, by accepting the control signal that regulation unit exports, removes by power operation the final control unit changing the process parameters such as rate-of flow, pressure, temperature, liquid level.
For realizing the adjustment to steam flow, claimant once developed a kind of electronic single-seat adjusting valve, with the aperture of the 3mm that electronic single-seat adjusting valve is distributed with on valve cage, changed according to moving up and down of spool by the spool little hole number making valve cage circulates that moves up and down in valve cage, the amount of the steam of outflow is just change thus play steam flow regulating action thereupon also.
But find in actual application, the requirement of this electronic single-seat adjusting valve to medium is higher, the medium of the cleaning that can only circulate.Water vapour due to scene is actual be salt, easily crystallization containing a little sand and molten state containing sewage steam, therefore, above-mentioned electronic single-seat adjusting valve has occurred after being installed to scene that indivedual valve blocks gradually, the problem that flow is more and more less.
Model utility content
Technical problem to be solved in the utility model is to provide a kind of non-clean medium and not easily blocking and the electronic single-seat adjusting valve that can regulate in proportion of circulating, to overcome the deficiency that prior art exists.
For solving the problems of the technologies described above, the utility model adopts following technological scheme:
A kind of electronic single-seat adjusting valve, comprise valve body, valve seat, spool, sleeve and valve rod, described valve body has valve pocket, the entrance and exit be communicated with valve pocket, described valve seat is located at the entry position in valve pocket, described sleeve arranges in described valve pocket and pushes down described valve seat, described spool is located in sleeve, selectively combine with described valve seat bottom it and be separated, side face and described sleeve lining are fitted, described valve rod one end is connected with described spool, the other end stretches out outside housing, described sleeve side face has communication port, it is characterized in that: the slit of the structure of described communication port to be bottom be even width, top is for width with highly much larger than the window of slit width.
Described communication port has the changeover portion from slit smooth transition to described window in centre.
The width of described slit is 2-3mm; The height of described window is 6-10mm, and width is 16-20mm.
The height of described slit and the height of window respectively account for 1/3 of whole described communication port.
In embodiment of the present utility model, described valve body top is provided with upper cover, has valve rod hole and packing cavity in described upper cover, and described valve rod is through described valve rod hole and packing cavity, be filled with filler in described packing cavity, described upper tops is provided with the pressing plate compressing described filler.
In addition, the compensating cylinder being also provided with above described sleeve and being compressed and then compress described sleeve by described upper cover is positioned in described valve pocket.
Adopt said structure, communication port is designed to the slit of even width in bottom, so just can carry out flow to regulate in proportion, upper design becomes width and the window of height much larger than slit width, larger fragment or fouling and clogging slit is had if encountered like this, valve flow reduces, at this moment valve controls spool according to PLC configuration mode and rises to top, exceed window, the flow of communication port far is increased, such fragment or fouling are gone out from large window, and valve restPoses automatically, avoid the blocking of valve.
Therefore, the utility model have can carry out Flow-rate adjustment in proportion to impure medium and do not occur block advantage, can adapt to work under severe working condition.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of sleeve.
Embodiment
As shown in Figure 1, electronic single-seat adjusting valve of the present utility model, comprises valve body 100, valve seat 200, spool 300, sleeve 400, valve rod 500, compensating cylinder 600 and upper cover 700.
Wherein, valve body 100 inside has valve pocket 101, the entrance 102 be communicated with valve pocket 101 and exports 103.
Valve seat 200 is located at the entry position in valve pocket 101, and sleeve 400 is arranged in valve pocket 101 and pushes down valve seat 200.Spool 300 is located in sleeve 400, and selectively combine with valve seat 200 bottom it and be separated, side face and sleeve 400 inwall are fitted.
Upper cover 700 is arranged on the top of valve body 100, and inside has valve rod hole 701 and packing cavity 702.Be positioned in valve pocket 101 to be also provided with above sleeve 400 and compressed by upper cover 700 and then the compensating cylinder 600 of clamp sleeve 400.
Valve rod 500 one end is connected with spool 300, and the other end passes from valve body 100, stretches out through valve rod hole 701 and packing cavity 702.Be filled with filler 703 in packing cavity 702, upper cover 700 top is provided with the pressing plate 704 compressing filler 703.
Shown in composition graphs 2, sleeve 400 side face has respectively a communication port 410 around.The slit 411 of the structure of this communication port 410 to be bottom be even width, top is width and the height window 412 much larger than slit width, and centre has the changeover portion 413 from slit 411 smooth transition to window 412.
The height of slit 411 and the height of window 412 respectively account for 1/3 of whole communication port.
Gather at the present embodiment, the width of slit 411 is 2mm, and the width of window 412 is 18mm, is highly 9mm.
It is exactly more than electronic single-seat adjusting valve of the present utility model, adopt said structure, communication port 410 is designed to the slit 411 of even width in bottom, so just can carry out flow to regulate in proportion, upper design becomes width and the window 412 of height much larger than slit 411 width, larger fragment or fouling and clogging slit is had if encountered like this, valve flow reduces, at this moment valve controls spool 300 according to PLC configuration mode and rises to top, exceed window 412, the flow of communication port far is increased, such fragment or fouling are gone out from large window 412, valve restPoses automatically, avoid the blocking of valve.
Can be found out by foregoing detailed description, the utility model have can carry out Flow-rate adjustment in proportion to impure medium and do not occur block advantage, can adapt to work under severe working condition.
The above; it is only preferred embodiment of the present utility model; not any pro forma restriction is done to the utility model; have in any art and usually know the knowledgeable; if in the protection domain not departing from the claim that the utility model proposes; the Equivalent embodiments that local done by the technology contents utilizing the utility model to disclose is changed or modified, and do not depart from technical characteristics content of the present utility model, all still belong in the scope of the utility model technical characteristics.
Claims (6)
1. an electronic single-seat adjusting valve, comprise valve body, valve seat, spool, sleeve and valve rod, described valve body has valve pocket, the entrance and exit be communicated with valve pocket, described valve seat is located at the entry position in valve pocket, described sleeve arranges in described valve pocket and pushes down described valve seat, described spool is located in sleeve, selectively combine with described valve seat bottom it and be separated, side face and described sleeve lining are fitted, described valve rod one end is connected with described spool, the other end stretches out outside housing, described sleeve side face has communication port, it is characterized in that: the slit of the structure of described communication port to be bottom be even width, top is for width with highly much larger than the window of slit width.
2. electronic single-seat adjusting valve according to claim 1, is characterized in that: described communication port has the changeover portion from slit smooth transition to described window in centre.
3. electronic single-seat adjusting valve according to claim 1, is characterized in that: the width of described slit is 2-3mm; The height of described window is 6-10mm, and width is 16-20mm.
4. electronic single-seat adjusting valve according to claim 2, is characterized in that: the height of described slit and the height of window respectively account for 1/3 of whole described communication port.
5. electronic single-seat adjusting valve according to claim 1 and 2, it is characterized in that: described valve body top is provided with upper cover, there is in described upper cover valve rod hole and packing cavity, described valve rod is through described valve rod hole and packing cavity, be filled with filler in described packing cavity, described upper tops is provided with the pressing plate compressing described filler.
6. electronic single-seat adjusting valve according to claim 5, is characterized in that: be positioned at the compensating cylinder being also provided with above described sleeve and being compressed and then compress described sleeve by described upper cover in described valve pocket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520121967.5U CN204459190U (en) | 2015-03-02 | 2015-03-02 | Electronic single-seat adjusting valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520121967.5U CN204459190U (en) | 2015-03-02 | 2015-03-02 | Electronic single-seat adjusting valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204459190U true CN204459190U (en) | 2015-07-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520121967.5U Active CN204459190U (en) | 2015-03-02 | 2015-03-02 | Electronic single-seat adjusting valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204459190U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106763835A (en) * | 2015-11-24 | 2017-05-31 | 浙江三花制冷集团有限公司 | Electric expansion valve and its valve component, valve seat core |
| CN108061171A (en) * | 2017-12-28 | 2018-05-22 | 上海自动化仪表有限公司 | Sleeve adjusting valve |
-
2015
- 2015-03-02 CN CN201520121967.5U patent/CN204459190U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106763835A (en) * | 2015-11-24 | 2017-05-31 | 浙江三花制冷集团有限公司 | Electric expansion valve and its valve component, valve seat core |
| CN108061171A (en) * | 2017-12-28 | 2018-05-22 | 上海自动化仪表有限公司 | Sleeve adjusting valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |