CN2110768U - Differential pressure float type drain valve - Google Patents
Differential pressure float type drain valve Download PDFInfo
- Publication number
- CN2110768U CN2110768U CN 91231157 CN91231157U CN2110768U CN 2110768 U CN2110768 U CN 2110768U CN 91231157 CN91231157 CN 91231157 CN 91231157 U CN91231157 U CN 91231157U CN 2110768 U CN2110768 U CN 2110768U
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- Prior art keywords
- valve
- differential pressure
- hole
- main valve
- main
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Abstract
The utility model relates to a differential pressure float cylinder type drain valve, comprising a valve cover, a valve body, a main valve, and a pilot valve integrally connected with a float cylinder. The middle part of the main valve is provided with a through hole, and the edge is provided with one or a plurality of small holes; a differential pressure chamber comprises the main valve, a valve sleeve, and a pilot valve sleeve; the upper part of the valve sleeve and the bottom of the pilot valve sleeve are respectively provided with holes. The utility model has the advantages of small size, light weight, large discharge, etc., and the pressure change of the differential pressure chamber is great.
Description
The utility model relates to a kind of universal machine autocontrol valve, especially a kind of differential pressure Open bucket steam trap.
In the prior art, the differential pressure Open bucket steam trap is by valve body, valve gap, and floating gear and water guider are formed, and its differential pressure chamber is made of main valve, valve pocket and pilot valve, relies on the motion of pilot valve to change its gap with the valve pocket hole, to reach the purpose that pressure reduction changes.Because this differential pressure cell structure is unreasonable, causes variation in pressure little, and unstable, therefore, can not satisfy the needs in the production reality.
It is big that the purpose of this utility model is to design a kind of not only differential pressure chamber discharge capacity, and variation in pressure is big and stable, and little, the lightweight differential pressure Open bucket steam trap of volume.
The utility model is by valve gap, valve body, main valve and constitute with pilot valve that keg float connects as one.The main valve middle part has through hole, and its edge has one or more aperture, and the total sectional area of these apertures is less than the sectional area of through hole.The differential pressure chamber is by main valve, and valve pocket and guide valve bushing are formed, and valve pocket is fixed in the guide pin bushing, and the top of valve pocket and the bottom of guide pin bushing have the hole.Enter and flow out flow velocity, the difference in flow of differential pressure chamber by above-mentioned hole can regulate fluid, the differential pressure chamber pressure is changed greatly and stable effect thereby play.
Compared with prior art, the utlity model has that the differential pressure chamber pressure changes greatly and reliable and stable, and characteristics such as volume is little, in light weight, and discharge capacity is big.
Accompanying drawing is a structural representation of the present utility model.
Valve pocket 2 is fixed in the guide pin bushing 4, and guide valve bushing 6 is fixed in the valve pocket 2.Main valve 3 tops are coniform, in the valve pocket 2 of packing into, and keep movingly with valve pocket 2.Valve pocket 2 and guide valve bushing 4 remain static in drain valve, and 7 of main valve 3 and pilot valves can be in the axial direction to-and-fro motion of valve pocket 2.Pilot valve 7, keg float 8 and the fastening formation keg float of balancing weight 9 usefulness nuts assembly, valve pocket 2 and guide pin bushing 4 move up and down relatively.Guide pin bushing 4 usefulness fastening pieces are fixed on the valve gap 1.
Before the drain valve operation, no water of condensation in it, the keg float assembly falls by deadweight, be in valve body 5 bottom positions, at this moment pilot valve 7 breakdown B holes, the indoor fluid pressure of differential pressure are far longer than place, A hole atmospheric pressure, so the aperture B of indoor fluid autonomous valve 3 bottoms of differential pressure flows out; Because main valve 3 edges have one or several aperture C, its total sectional area is less than the sectional area in B hole, the differential pressure chamber is communicated with valve body 5 by the C hole again, when pilot valve 7 firm breakdown B holes, the indoor fluid pressure of differential pressure differs very little with the fluid pressure in the valve body 5, the variation that causes the fluid in the valve body 5 to have little time to replenish differential pressure chamber fluid so the pressure of differential pressure chamber sharply descends, causes less than the pressure above the C hole.Therefore, the pressure that the pressure that main valve 3 tops are subjected to is suffered much larger than its underpart then forces main valve 3 breakdown A holes, and this moment, drain valve was in hull-borne.When the water in the keg float 8 is discharged to certain position, the suffered buoyancy of water effect of keg float assembly and floating, the pilot valve 7 that links to each other with the keg float assembly promptly cuts out the B hole on the main valve 3 earlier; When the keg float assembly continues come-up, just promote main valve 3 and close A hole on the gland 1, make drain valve stop draining.So far finished the one action circulation.
Claims (3)
1, a kind of pressure reduction Open bucket steam trap, constituted by valve gap 1, valve body 5, main valve 3 and with pilot valve 7 that keg float 8 connects as one, it is characterized in that main valve 3 middle parts have through hole B, edge has the aperture C of one or more its total sectional areas less than through hole B sectional area, differential pressure chamber 12 is made up of main valve 3, valve pocket 2 and guide valve bushing 6, the top of valve pocket 2 has hole D, and valve pocket 2 is fixed in the guide pin bushing 4, and guide pin bushing 4 bottoms have hole E.
2, pressure reduction Open bucket steam trap according to claim 1, the top that it is characterized in that main valve 3 is coniform, main valve 3 is packed in the valve pocket 2, and keeps movingly with it.
3, pressure reduction Open bucket steam trap according to claim 1 and 2 is characterized in that guide pin bushing 4 usefulness fastening pieces are fixed on the valve gap 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91231157 CN2110768U (en) | 1991-12-21 | 1991-12-21 | Differential pressure float type drain valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91231157 CN2110768U (en) | 1991-12-21 | 1991-12-21 | Differential pressure float type drain valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2110768U true CN2110768U (en) | 1992-07-22 |
Family
ID=4936399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91231157 Granted CN2110768U (en) | 1991-12-21 | 1991-12-21 | Differential pressure float type drain valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2110768U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106051449A (en) * | 2016-07-22 | 2016-10-26 | 中国船舶重工集团公司第七〇九研究所 | Integrated draining device |
-
1991
- 1991-12-21 CN CN 91231157 patent/CN2110768U/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106051449A (en) * | 2016-07-22 | 2016-10-26 | 中国船舶重工集团公司第七〇九研究所 | Integrated draining device |
| CN106051449B (en) * | 2016-07-22 | 2018-08-31 | 中国船舶重工集团公司第七一九研究所 | Integrated form steam trap connection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |