CN213627948U - Underground special drainage and production pump for coal bed gas - Google Patents
Underground special drainage and production pump for coal bed gas Download PDFInfo
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- CN213627948U CN213627948U CN202022111635.2U CN202022111635U CN213627948U CN 213627948 U CN213627948 U CN 213627948U CN 202022111635 U CN202022111635 U CN 202022111635U CN 213627948 U CN213627948 U CN 213627948U
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- bed gas
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Abstract
The utility model discloses a coal bed gas is special arranges in pit and adopts pump utilizes this row to adopt the pump can be in the pump barrel, produce the intraductal buggy of liquid and wash ground, can solve coal bed gas well and produce the in-process down, because of the buggy blocks up fixed valve and causes conventional oil-well pump can not normally work, the frequent problem of well workover pump inspection. The drainage pump comprises a pump barrel (1), a pull rod (2), a plunger (3), a traveling valve (4) and a fixed valve (5), wherein the lower end of the plunger (3) is connected with a guide barrel (11), and a pump collision rod (10), an upper guide (9), a lower guide (8), a telescopic spring (7) and a pump collision stirrer (6) are arranged in the guide barrel (11).
Description
Technical Field
The utility model relates to a coal bed gas exploitation equipment specifically is a special pump that adopts of arranging in coal bed gas pit.
Background
In the process of discharging and extracting the drainage of the coal bed gas well by using the existing coal bed gas discharging and extracting equipment, along with the reduction of coal bed water, the coal bed produced water is less and less, the coal dust content of the produced water is higher and higher, in addition, after the coal bed gas production well is fractured, the coal dust content in the coal bed water is also increased, and fine coal particles (sand) in an oil pipe can be continuously deposited under the action of self weight, so that the phenomena of pump valve blockage or pump blockage and the like are caused. The method is usually solved only by a measure of frequently detecting the pump in well repairing operation, so that the time for normally draining water and producing gas is reduced, and the well repairing cost is increased.
Disclosure of Invention
The utility model aims at: the utility model discloses aim at solving the technical problem who exists among the prior art or the correlation technique. In view of this, the utility model aims at providing a can arrange the special pump of adopting of coal bed gas underground that adopts coal bed gas underground aquatic buggy.
The technical scheme of the utility model:
in order to realize the purpose, the technical scheme of the utility model a can arrange the coal bed gas of adopting coal bed gas underground water buggy special row in pit and adopt pump is provided. The underground special drainage and production pump for the coal bed gas consists of a pump barrel, a pull rod, a plunger, a traveling valve, a fixed valve, a collision pump stirrer, a telescopic spring, a lower guide, an upper guide, a collision pump rod, a guide barrel and the like.
In the pump cylinder, the upper end of the plunger is connected with a pull rod; a traveling valve is arranged inside the plunger; the lower end of the plunger is connected with the guide cylinder. The guide cylinder is internally provided with an upper guide, a lower guide and a pump bumping rod, the telescopic spring is sleeved on the pump bumping rod, and the lower part of the pump bumping rod is connected with a pump bumping stirrer. The collision pump stirrer is provided with a spiral groove. The lower end of the pump cylinder is connected with a fixed valve.
The utility model has the advantages that:
(1) compared with a conventional oil well pump, the discharging and extracting pump is additionally provided with the telescopic elastic pump bumping mechanism, each stroke realizes that the pump bumping stirrer and the fixed valve generate flexible slight pump bumping, and under the condition of impurities, the valve ball can be completely closed due to vibration, so that the problem that the fixed valve ball cannot be closed due to the fact that pulverized coal is accumulated at the fixed valve is solved.
(2) The pump bumping mechanism of the discharge mining pump is provided with an underground pump bumping stirrer, the mixing and stirring of liquid at the lower part of the plunger piston are realized in each stroke, the sedimentation of pulverized coal and sand powder is reduced, so that as much pulverized coal impurities as possible are discharged to the ground, and the pump blockage caused by the impurities entering the gap between the plunger piston and the pump barrel is avoided. The pump detection period is prolonged, the operation times are reduced, the continuous and stable operation of discharge and production is promoted, and the discharge and production cost is reduced.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of the working process of the present invention.
In the figure: pump cylinder 1, pull rod 2, plunger 3, traveling valve 4, fixed valve 5, pump stirrer 6, telescopic spring 7, lower guide 8, upper guide 9, pump rod 10, guide cylinder 11
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1, the underground coal bed methane special drainage and production pump is composed of a pump barrel 1, a pull rod 2, a plunger 3, a traveling valve 4, a fixed valve 5, a touch pump stirrer 6, a telescopic spring 7, a lower guide 8, an upper guide 9, a touch pump rod 10, a guide barrel 11 and the like.
In the pump barrel 1, the upper end of a plunger 3 is connected with a pull rod 2; a traveling valve 4 is arranged inside the plunger 3; the lower end of the plunger 3 is connected with a guide cylinder 11. The lower end of the pump cylinder 1 is connected with a fixed valve 5.
An upper guide 9 and a lower guide 8 are arranged in the guide cylinder 11; the pump collision rod 10 passes through the upper guide 9, the lower guide 8, the telescopic spring 7 and the pump collision stirrer 6. The collision pump stirrer 6 is provided with a spiral groove which can stir liquid at the lower part of the plunger when in motion.
The working process of the underground special drainage and production pump for the coal bed gas is shown in figure 2:
an upstroke: the pull rod 2 drives the plunger 3 to move upwards, the traveling valve 4 is closed, the volume of a working cavity under the pump collision stirrer 6 is increased at the moment, a low-pressure cavity is formed, the fixed valve 5 is opened, and the liquid is fed into the pump cavity.
A down stroke: the plunger 3 moves downwards under the push of the pull rod 2, the volume of the working cavity is reduced, a high-pressure cavity is formed, the traveling valve 4 is opened, the fixed valve 5 is closed, and the pump cavity discharges liquid. When the plunger 3 reaches the bottom dead center, the collision pump stirrer 6 and the fixed valve 5 generate flexible collision pump under the elastic force action of the telescopic spring 7 on the collision pump rod 10, the fixed valve 5 ball can be completely closed by vibration, and meanwhile, the coal powder-containing output liquid in the working cavity below the collision pump stirrer 6 is stirred to prevent the precipitation of coal powder.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or replaced by other means, without departing from the spirit of the invention, which is intended to cover the scope of the invention as claimed.
Claims (5)
1. The utility model provides a coal bed gas is special arranges mining pump in pit, includes pump barrel, pull rod, plunger, valve that moves about, fixed valve, its characterized in that, the plunger lower extreme be connected with the guide cylinder, be equipped with in the guide cylinder and bump pump pole, go up direction, down direction, expanding spring, bump the pump agitator.
2. The underground coal bed methane production pump special for the coal bed methane according to claim 1, wherein the upper end of the plunger is connected with a pull rod.
3. The underground special drainage and production pump for coal bed gas according to claim 1, wherein the lower end of the pump cylinder is connected with a fixed valve.
4. The underground coal bed methane mining pump special for the coal bed methane according to claim 1, wherein the collision pump stirrer is provided with a spiral groove.
5. The underground coal bed methane discharging and extracting pump special for the coal bed methane well as defined in claim 1, wherein the pump bumping rod inside the guide cylinder passes through the upper guide, the lower guide, the expansion spring and then is connected with the pump bumping stirrer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022111635.2U CN213627948U (en) | 2020-09-24 | 2020-09-24 | Underground special drainage and production pump for coal bed gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022111635.2U CN213627948U (en) | 2020-09-24 | 2020-09-24 | Underground special drainage and production pump for coal bed gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213627948U true CN213627948U (en) | 2021-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022111635.2U Active CN213627948U (en) | 2020-09-24 | 2020-09-24 | Underground special drainage and production pump for coal bed gas |
Country Status (1)
| Country | Link |
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| CN (1) | CN213627948U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116220632A (en) * | 2023-04-11 | 2023-06-06 | 大庆瑞福佳石油科技有限公司 | Oil well eccentric wear prevention stretcher |
-
2020
- 2020-09-24 CN CN202022111635.2U patent/CN213627948U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116220632A (en) * | 2023-04-11 | 2023-06-06 | 大庆瑞福佳石油科技有限公司 | Oil well eccentric wear prevention stretcher |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211223 Address after: 710-2, floor 7, building 4, yard 1, Shangdi 10th Street, Haidian District, Beijing 100085 Patentee after: Beijing Hongye Ruida Technology Co.,Ltd. Address before: 072550 2-401, building 5, instrument factory, 360 Fuxing West Road, ansu Town, Xushui County, Baoding City, Hebei Province Patentee before: Li Shujiang |