CN202673235U - Reversible type high pressure check valve - Google Patents
Reversible type high pressure check valve Download PDFInfo
- Publication number
- CN202673235U CN202673235U CN 201220128300 CN201220128300U CN202673235U CN 202673235 U CN202673235 U CN 202673235U CN 201220128300 CN201220128300 CN 201220128300 CN 201220128300 U CN201220128300 U CN 201220128300U CN 202673235 U CN202673235 U CN 202673235U
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- CN
- China
- Prior art keywords
- valve
- plug
- sealing
- high pressure
- voltage
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- Expired - Fee Related
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- Safety Valves (AREA)
Abstract
The utility model relates to an oil-water well valve device, in particular to a high pressure check valve. The reversible type high pressure check valve comprises a valve body, a valve seat, a valve plug, and a sealing plug, wherein the lower end of the valve body is provided with a water inlet, a side wall of the valve body is provided with a water outlet, the valve seat is arranged at the lower end of the valve body, the valve plug is arranged above the valve seat, the upper end of the valve plug is connected with a adjusting threaded rod, and the upper end of the adjusting threaded rod penetrates through the sealing plug and is connected with the sealing plug in thread mode. The reversible type high pressure check valve has the advantages of being high in safety factor, long in service life, low in cost, and capable of enabling impurities being convenient to clean. Due to the fact that stratum conditioning can be avoided caused by the loose valve seat, major overhaul in the well can be avoided. Due to the fact that reversed flow of the check valve is achieved, operation in site technical process is simplified, and labor intensity of workers is reduced.
Description
Technical field
The utility model relates to a kind of oil-water well valving, relates in particular to a kind of high-voltage one-way valve.
Background technology
People utilize installation high-voltage ball-and-seat in the water injection well technological process at present, be used for preventing that the water injection through tubing and casing well from pouring in down a chimney phenomenon because of the oil jacket that the difference of pressure causes, perhaps because of reasons such as conduit wiring piercing, the terminations of pumping of ground augmented injection system, the water phenomenon is returned on the stratum of causing, but high-voltage one-way valve can not make the liquid reverse flow when changing water flooding regime or other measure construction, and the valve seat of high-voltage one-way valve often blocks by foreign matter, can't clear up, and causes valve block not playback high-voltage one-way valve was lost efficacy.
Summary of the invention
The purpose of this utility model is to provide the reversible high-voltage one-way valve that a kind of safety factor is high, easy to operate, can realize the liquid reverse flow.
The technical solution of the utility model is:
The reversible high-voltage one-way valve, include valve body, valve seat, valve plug, sealing plug, valve body lower end has water inlet, body wall has delivery port, valve seat is positioned at valve body lower end, valve plug is positioned at the valve seat top, and the valve plug upper end connects adjusting screw(rod), and the adjusting screw(rod) upper end is passed the sealing plug and is threaded with the sealing plug.
Described sealing filament blocks in section and the formed annular space of adjusting screw(rod) the high pressure sealing pad is set, and high pressure sealing pad upper end connects the sealing ring gland, and sealing ring gland top connects pressure cap.
The top of described valve plug has the hole that the bottom internal diameter is large, the top internal diameter is little, and the sidewall in hole is jagged, and the lower end of sealing screw rod is positioned at the hole, and the diameter of sealing screw rod lower end is greater than the internal diameter on top, hole.
Between described valve plug and the sealing plug spring is set, spring housing is on adjusting screw(rod).
Described sealing plug adopts taper pipe thread to be connected with valve body.
Normal mounting with the time come water pipeline to be installed in import department of the present utility model the high pressure, delivery port links to each other with shaft collar, the bottom pressure pressure that is above the ground level when water injection well stops annotating, water jets under high pressure promotes valve plug and valve seat close contact, the current loop is cut extremely, thereby prevented from telling a series of down-hole accidents such as causing formation sand production because down-hole liquid returns; When needs are emitted ground with the down-hole liquid release, be rotated counterclockwise adjusting screw(rod) and make on the valve plug and move, can make down-hole liquid return out ground; When delivery port of the present utility model links to each other with the high pressure water; water inlet links to each other by oil jacket connected well port strobe; when shaft collar is full-gear; open sluice gate; the utility model can the setting water of damming make it to flow to the shaft bottom; make the shaft collar flashboard be in the state of not stressing, thereby open the effect of protection gate.
The utility model safety factor is high, long service life, and cost is low, cleaning impurity is convenient, can avoid not telling sand because valve seat does not sternly make the stratum, the down-hole overhaul accident that causes, realize the reverse flow of ball-and-seat, made things convenient for the operation on the site technique flow process, reduce workman's labour intensity.
Description of drawings
Fig. 1 is the utility model structural representation.
1 valve body, 2 valve seats, 3 valve plugs, 4 adjusting screw(rod)s, 5 sealing plugs
6 high pressure sealing pads, 7 sealing ring glands, 8 pressure caps, 9 springs, 10 delivery ports.
The specific embodiment
The reversible high-voltage one-way valve, include valve body 1, valve seat 2, valve plug 3, sealing plug 5, valve body 1 top is connected with sealing plug 5 taper pipe threads, there is water inlet valve body 1 lower end, valve body 1 sidewall has delivery port 10, and valve seat 2 is positioned at valve body 1 lower end, and valve plug 3 is positioned at valve seat 2 tops, valve plug 3 upper ends connect adjusting screw(rod) 4, and adjusting screw(rod) 4 upper ends are passed sealing plug 5 and are threaded with sealing plug 5.
In sealing plug 5 tops and the adjusting screw(rod) 4 formed annular spaces high pressure sealing pad 6 is set, high pressure sealing pad 6 upper ends connect sealing ring gland 7, and sealing ring gland 7 tops connect pressure cap 8.
The top of valve plug 3 has the hole that the bottom internal diameter is large, the top internal diameter is little, the sidewall in hole is jagged, and the lower end of sealing screw rod is positioned at the hole, and the diameter of sealing screw rod lower end is greater than the internal diameter on top, hole, between valve plug 3 and the sealing plug 5 spring 9 is set, spring 9 is enclosed within on the adjusting screw(rod) 4.
Should be noted that at last: above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit; Although with reference to preferred embodiment the utility model is had been described in detail, those of ordinary skill in the field are to be understood that: still can make amendment or the part technical characterictic is equal to replacement the specific embodiment of the present utility model; And not breaking away from the spirit of technical solutions of the utility model, it all should be encompassed in the middle of the technical scheme scope that the utility model asks for protection.
Claims (5)
1. the reversible high-voltage one-way valve includes valve body, valve seat, valve plug, sealing plug, it is characterized in that, the valve plug upper end connects adjusting screw(rod), and the adjusting screw(rod) upper end is passed the sealing plug and is threaded with the sealing plug.
2. described reversible high-voltage one-way valve according to claim 1 is characterized in that, sealing filament blocks section and adjusting
In the formed annular space of screw rod the high pressure sealing pad is set, high pressure sealing pad upper end connects the sealing ring gland, and the gland top connects pressure cap.
3. described reversible high-voltage one-way valve according to claim 1, it is characterized in that, the top of valve plug has the hole that the bottom internal diameter is large, the top internal diameter is little, and the sidewall in hole is jagged, the lower end of sealing screw rod is positioned at the hole, and the diameter of sealing screw rod lower end is greater than the internal diameter on top, hole.
4. described reversible high-voltage one-way valve according to claim 3 is characterized in that, between valve plug and the sealing plug spring is set, and spring housing is on adjusting screw(rod).
5. described reversible high-voltage one-way valve according to claim 1 is characterized in that, the sealing plug is connected with valve body employing taper pipe thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220128300 CN202673235U (en) | 2012-03-30 | 2012-03-30 | Reversible type high pressure check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220128300 CN202673235U (en) | 2012-03-30 | 2012-03-30 | Reversible type high pressure check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202673235U true CN202673235U (en) | 2013-01-16 |
Family
ID=47494145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220128300 Expired - Fee Related CN202673235U (en) | 2012-03-30 | 2012-03-30 | Reversible type high pressure check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202673235U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112963563A (en) * | 2021-02-22 | 2021-06-15 | 大庆市天德忠石油科技有限公司 | Anti-backflow high-pressure water well valve for oil field |
-
2012
- 2012-03-30 CN CN 201220128300 patent/CN202673235U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112963563A (en) * | 2021-02-22 | 2021-06-15 | 大庆市天德忠石油科技有限公司 | Anti-backflow high-pressure water well valve for oil field |
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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: 20130116 Termination date: 20150330 |
|
| EXPY | Termination of patent right or utility model |