CN201546977U - Downhole drainage pump pressure release valve - Google Patents
Downhole drainage pump pressure release valve Download PDFInfo
- Publication number
- CN201546977U CN201546977U CN2009202766414U CN200920276641U CN201546977U CN 201546977 U CN201546977 U CN 201546977U CN 2009202766414 U CN2009202766414 U CN 2009202766414U CN 200920276641 U CN200920276641 U CN 200920276641U CN 201546977 U CN201546977 U CN 201546977U
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- CN
- China
- Prior art keywords
- valve
- valve body
- valve rod
- supporting frame
- pressure release
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- 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
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Abstract
The utility model discloses a downhole drainage pump pressure release valve, which comprises a valve body, a valve cover, a supporting frame, a valve stem and a hand wheel. The upper end of the valve body is connected with the valve cover which is connected to the lower end of the supporting frame, a stuffing box filled with stuffing is arranged on the valve cover, the valve stem penetrates through the center of the stuffing, the upper end of the valve stem is screwed with a nut fixed on the supporting frame while the lower end thereof extends into the valve body, the hand wheel is arranged at the top end of the valve stem, a bottom hole is arranged on a base plate of the screw body, pressure release holes are arranged on the lateral wall of the valve body, and a tongue plate arranged in an inner cavity of the valve body consists of a cover plate and a pin which penetrates out of the bottom hole. Besides, a sealing ring is arranged on the base plate to enhance sealing performance of the cover plate and the base plate. The downhole drainage pump pressure release valve is simple in structure, convenient for regulation and control and fine in economical benefit, can automatically release pressure and guarantee start and stop safety of water pumps and can be popularized in all coal mines widely.
Description
One, technical field: the utility model relates to a kind of Decompression valves, particularly relates to a kind of drainage underground pump Decompression valves.
Two, background technique: complicated geologic conditions under my mine, water yield is bigger, each exploiting field pump drainage water conservancy project is as every trouble free service most important thing, each exploiting field pump house mainly adopts large-scale multistage pump to carry out draining, because the general drop height of exploiting field draining, flow is big, and it is long to lay discharge pipe line, and backwater causes bad bottom valve of seat or water pump accident easily during water pump is out of service.
Three, model utility content
Technical problem to be solved in the utility model is: overcome the deficiencies in the prior art, provide a kind of simple in structure, regulation and control are convenient, the drainage underground pump Decompression valves of release pressure and assurance water pump start and stop safety automatically.
The technical solution of the utility model is: a kind of drainage underground pump Decompression valves, contain valve body, valve gap, supporting frame, valve rod and handwheel, wherein, the valve body upper end is connected with valve gap, valve gap is connected with the supporting frame lower end, and valve gap is provided with Stuffing box, is provided with filler in the Stuffing box, valve rod passes from the filler center, and valve rod upper end screws mutually with nut on being fixed on supporting frame, and its lower end extend in the body cavity, the top of valve rod is equipped with handwheel, the chassis of described valve body is provided with bottom outlet, and its sidewall is provided with relief hole, places a hyoplastron in the described body cavity, this hyoplastron is made up of cover plate and bearing pin, and bearing pin runs through described bottom outlet and goes out.
The chassis of described valve body is provided with seal ring, to increase the sealing on cover plate and chassis.Described valve rod top is provided with limiting stopper, and this limiting stopper is positioned on the described valve rod of described nut below, the height that the restriction valve rod rises.
The beneficial effects of the utility model are:
1, the utility model is installed in multistage pump near the suction sleeve horizontal position of water absorbing section, and water pump can seal when opening, but releasing pressure automatically when stopping, reach the purpose of automatic release pressure, through on-the-spot test of many times, using effect is good, has guaranteed the start and stop safety of water pump.
2, the chassis of the utility model valve body is provided with seal ring, under pipeline internal differential pressure and the effect of valve rod pressure, makes between cover plate and the chassis and forms sealing state, effectively prevents to leak.
3, the utility model valve rod top is provided with limiting stopper, and this limiting stopper is positioned on the valve rod of nut below, can limit the height of carrying on the valve rod, prevents that hyoplastron and bearing pin break away from bottom outlet.
4, the utility model using scope is wide, can promote in all colliery large size, has good economic benefit.
Four, description of drawings
Fig. 1 is the Facad structure schematic representation of drainage underground pump Decompression valves.
Five, embodiment
Embodiment one: referring to Fig. 1, among the figure, 1-is equipped with jack panel, 2-handwheel, 3-valve rod, 4-limiting stopper, 5-supporting frame, 6-Stuffing box, 7-valve gap, 8-valve body, 9-active chamber, 10-relief hole, 11-cover plate, 12-bottom outlet, 13-bearing pin.
The chassis of valve body 8 is provided with seal ring (not drawing among the figure), to increase the sealing on cover plate 11 and chassis.Valve rod 3 tops are provided with limiting stopper 4, and this limiting stopper 4 is positioned on the valve rod 3 of nut below, the height that restriction valve rod 3 rises.
During use, the utility model is installed in multistage pump near the suction sleeve horizontal position of water absorbing section, and water pump can seal when opening, but releasing pressure automatically when stopping.When starting water pump, the staff makes valve rod 3 whereabouts holddown plates 11 by operation handwheel 2, and cover plate 11 seals (on the chassis rubber seal can be set) with the chassis of valve body 8, under pipeline internal differential pressure and valve rod 3 pressure effects, Decompression valves forms sealing state, prevents to leak.When stopping water pump, at first open Decompression valves, reverse operating handwheel 2 is mentioned valve rod 3, and (limiting stopper 4 on the valve rod 3 positions according to bearing pin 13 positions, prevent that bearing pin 13 breaks away from bottom outlet 12), the waste pipe press water returns seat, enters suction sleeve and reaches certain pressure, and cover plate 11 rises under hydraulic action, current are entered in the valve body 8, drain in the suction The Small Well through relief hole 10.
The specific constructive form that changes the specific constructive form (such as adopting caging bolt) of limiting stopper, the specific constructive form that changes hyoplastron and change valve body can be formed a plurality of embodiments, is common variation of the present utility model, does not describe in detail one by one at this.
Claims (3)
1. drainage underground pump Decompression valves, contain valve body, valve gap, supporting frame, valve rod and handwheel, wherein, the valve body upper end is connected with valve gap, valve gap is connected with the supporting frame lower end, and valve gap is provided with Stuffing box, is provided with filler in the Stuffing box, valve rod passes from the filler center, and valve rod upper end screws mutually with nut on being fixed on supporting frame, and its lower end extend in the body cavity, the top of valve rod is equipped with handwheel, it is characterized in that: the chassis of described valve body is provided with bottom outlet, and its sidewall is provided with relief hole, places a hyoplastron in the described body cavity, this hyoplastron is made up of cover plate and bearing pin, and bearing pin runs through described bottom outlet and goes out.
2. drainage underground pump Decompression valves according to claim 1, it is characterized in that: the chassis of described valve body is provided with seal ring, to increase the sealing on cover plate and chassis.
3. drainage underground pump Decompression valves according to claim 1 and 2 is characterized in that: described valve rod top is provided with limiting stopper, and this limiting stopper is positioned on the described valve rod of described nut below, the height that the restriction valve rod rises.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202766414U CN201546977U (en) | 2009-12-08 | 2009-12-08 | Downhole drainage pump pressure release valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202766414U CN201546977U (en) | 2009-12-08 | 2009-12-08 | Downhole drainage pump pressure release valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201546977U true CN201546977U (en) | 2010-08-11 |
Family
ID=42602148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202766414U Expired - Fee Related CN201546977U (en) | 2009-12-08 | 2009-12-08 | Downhole drainage pump pressure release valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201546977U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2479620A (en) * | 2011-03-21 | 2011-10-19 | Jamie Nightingale | Bicycle roof |
-
2009
- 2009-12-08 CN CN2009202766414U patent/CN201546977U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2479620A (en) * | 2011-03-21 | 2011-10-19 | Jamie Nightingale | Bicycle roof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100811 Termination date: 20101208 |