CN207761935U - A kind of anti-flyash bolt special pump of coal-bed gas exploitation - Google Patents
A kind of anti-flyash bolt special pump of coal-bed gas exploitation Download PDFInfo
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- CN207761935U CN207761935U CN201820040080.7U CN201820040080U CN207761935U CN 207761935 U CN207761935 U CN 207761935U CN 201820040080 U CN201820040080 U CN 201820040080U CN 207761935 U CN207761935 U CN 207761935U
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- flyash
- coal
- screw pump
- liquid feed
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Abstract
A kind of anti-flyash bolt special pump of coal-bed gas exploitation, including oil pipe, outlet connector, annular desilting connector, screw pump rotor, screw pump stator, outer tube, rotor spacer pin, liquid feed valve, lower reducer union and tail pipe；The oil pipe, outlet connector, annular desilting connector, screw pump stator, rotor spacer pin, liquid feed valve, lower reducer union and tail pipe are sequentially connected from top to bottom；The outer tube sleeve is mounted between liquid feed valve and annular desilting connector outside screw pump stator and rotor spacer pin, toroidal cavity is formed between outer tube and screw pump stator, rotor spacer pin；The first sedimentation cavity is equipped in the annular desilting connector tube wall；The second sedimentation cavity is equipped in the liquid feed valve tube wall；The first sedimentation cavity, toroidal cavity and the second sedimentation cavity up and down, form flyash and settle channel.The utility model can efficiently separate away flyash during coal bed gas extraction, achieve the purpose that solve the problems, such as rod parting and holddown.
Description
Technical field
The utility model is related to a kind of anti-flyash bolt special pumps of coal-bed gas exploitation, belong to screw pump technology field.
Background technology
Coal bed gas is commonly called as " gas ", and main component is CH4 (methane), it with coal association, be to be stored with adsorbed state
In the Unconventional gas in coal seam.It is the comparatively inexpensive clean type energy almost without pollutant after being burnt due to coal bed gas,
It can be used as domestic fuel, industrial fuel, fuel used to generate electricity, motor vehicle fuel and important industrial chemicals.When coal seam gas concentration in air
When reaching 5%-16%, meeting open fire will explode, this is the root of Gas Explosion Accidents in Coal Mines, if first exploited before coal mining
Coal bed gas, coal mine gas from explosion rate will reduce by 70% to 85%.It achieves many things at one stroke it can be seen that the utilization of coal bed gas have
Effect.
Screw pump is to form a series of airtight chamber by stator and rotor close fit, these chambers are constantly formed, transported
It moves, disappear, achieve the purpose that pump liquid.Currently, the exploitation of coal bed gas is realized by drainage gas recovery, screw rod is utilized
The effective means that pump completes oil pipe draining, casing aerogenesis is exploiting coal bed methane.And flyash is the distinctive product of coal bed gas field, it
During coal bed gas extraction, enter oil pipe with well liquid, sucker rod that not only can be in rail causes to impact, and causes to pump
The disconnected de- problem of bar, and after screw pump shuts down, since the deposition of flyash can also cause holddown phenomenon.It needs thus
Flyash is efficiently separated away during coal bed gas extraction.
Utility model content
The utility model provides a kind of anti-flyash bolt special pump of coal-bed gas exploitation, to realize in coal bed gas extraction process
It is middle to efficiently separate away flyash, achieve the purpose that solve the problems, such as rod parting and holddown.
To achieve the above object, the utility model adopts the following technical solution：
A kind of anti-flyash bolt special pump of coal-bed gas exploitation, including oil pipe, outlet connector, annular desilting connector, screw rod
Pump rotor, screw pump stator, outer tube, rotor spacer pin, liquid feed valve, lower reducer union and tail pipe；The oil pipe, outlet connector,
Annular desilting connector, screw pump stator, rotor spacer pin, liquid feed valve, lower reducer union and tail pipe are sequentially connected from top to bottom；Institute
Screw pump rotor is stated to be sleeved in screw pump stator inner cavity, axial support positioning is realized in lower end by rotor spacer pin, upper end with
The sucker rod of coal-bed gas exploitation equipment connects；The outer tube sleeve outside screw pump stator and rotor spacer pin, be mounted on into
Between liquid valve and annular desilting connector, toroidal cavity is formed between outer tube and screw pump stator, rotor spacer pin；The annular
The first sedimentation cavity is equipped in desilting connector tube wall；The second sedimentation cavity is equipped in the liquid feed valve tube wall；First sedimentation
Cavity, toroidal cavity and the second sedimentation cavity up and down, it is logical to form the flyash sedimentation being connect with lower reducer union and tail pipe
Road.
The above-mentioned anti-flyash bolt special pump of coal-bed gas exploitation, the screw pump rotor upper end passes through in annular desilting connector
Chamber stretches in oil pipe.
The above-mentioned anti-flyash bolt special pump of coal-bed gas exploitation, the liquid feed valve are equipped with lateral inlet opening.
The above-mentioned anti-flyash bolt special pump of coal-bed gas exploitation, the oil pipe, outlet connector, annular desilting connector, screw rod
Pump stator, rotor spacer pin, liquid feed valve, lower reducer union pass sequentially through helicitic texture with tail pipe and connect from top to bottom；It is described outer
Pipe is connected through a screw thread structure between liquid feed valve and annular desilting connector.
The utility model is a kind of coal-bed gas exploitation anti-flyash bolt special pump, it be equipped with upper end connection outlet connector,
The flyash of the lower reducer union of lower end connection and tail pipe settles channel, therefore can make to enter the powder in outlet connector with well liquid
Coal ash settles channel under self gravitation effect, by flyash and drop in tail pipe, avoids bulky grain flyash and enters oil
Pipe is impacted caused by sucker rod；The screw pump rotor upper end of the utility model passes through annular desilting connector inner cavity, stretches to oil
The sucker rod of Guan Zhongyu coal-bed gas exploitation equipment connects, therefore well liquid is made to be constantly in screw shape before entering outlet connector
State ensures that flyash enters with well liquid in outlet connector, avoids fine coal in well liquid in the case where the vortex of fluid perturbs effect
Deposition of the ash between screw pump rotor and screw pump stator；The liquid feed valve of the utility model settles channel using evacuation flyash
Lateral feed liquor pore structure, sediment can be prevented to be again sucked into well liquid.It can be seen that the utility model can be in coal seam
Flyash is efficiently separated away during gas extraction, has achieved the purpose that solve the problems, such as rod parting and holddown.
Description of the drawings
Fig. 1 is the utility model structure diagram；
Fig. 2 is A-A cross-sectional views in Fig. 1；
Fig. 3 is B-B cross-sectional views in Fig. 1；
Fig. 4 is utility model works principle schematic.
Each list of reference numerals is in figure：
1, lower reducer union, 2, liquid feed valve, 2-1, lateral inlet, 2-2, the second sedimentation cavity, 3, rotor spacer pin, 4,
Screw pump stator, 5, screw pump rotor, 6, outer tube, 7, annular desilting connector, 7-1, the first sedimentation cavity, 8, outlet connector, 9,
Oil pipe, 10, tail pipe, 11, flyash, 12, well liquid；
T, flyash settles channel.
Specific implementation mode
Below in conjunction with the accompanying drawings and specific embodiment the utility model is described in further detail.
Referring to Fig. 1, Fig. 2, Fig. 3, the utility model is a kind of anti-flyash bolt special pump of coal-bed gas exploitation, it includes oil
Pipe 9, outlet connector 8, annular desilting connector 7, screw pump rotor 5, screw pump stator 4, outer tube 6, rotor spacer pin 3, liquid feed valve
2, lower reducer union 1 and tail pipe 10；The oil pipe 9, outlet connector 8, annular desilting connector 7, screw pump stator 4, rotor limit
Pin 3, liquid feed valve 2, lower reducer union 1 and tail pipe 10 pass sequentially through helicitic texture and connect from top to bottom；5 sets of the screw pump rotor
In 4 inner cavity of screw pump stator, lower end realizes that axial support positioning, upper end pass through annular desilting to connect by rotor spacer pin 3
First 7 inner cavity, stretches in oil pipe 9 and is connect with the sucker rod of coal-bed gas exploitation equipment；The outer tube 6 is sleeved on screw pump stator 4
And the outside of rotor spacer pin 3, be connected through a screw thread structure between liquid feed valve 2 and annular desilting connector 7, outer tube 6 with
Toroidal cavity is formed between screw pump stator 4, rotor spacer pin 3；It is empty it to be equipped with the first sedimentation in 7 tube wall of annular desilting connector
Chamber 7-1；The second sedimentation cavity 2-2 and lateral inlet opening 2-1 is equipped in 2 tube wall of the liquid feed valve；The first sedimentation cavity 7-
1, toroidal cavity and the second sedimentation cavity 2-2 up and down, form the flyash sedimentation being connect with lower reducer union 1 and tail pipe 10
Channel T.
Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, the anti-flyash bolt special pump of coal-bed gas exploitation described in the utility model, in coal seam
In gas recovery process, it can make with well liquid 12 into the flyash 11 at outlet connector 8 under self gravitation effect, pass through powder
Sootfall channel T is drop in tail pipe 10；Since 5 upper end of screw pump rotor of the utility model passes through annular desilting connector 7
Inner cavity stretches in oil pipe 9 and is connect with the sucker rod of coal-bed gas exploitation equipment, so that well liquid 12 is entering outlet connector 8
Before be constantly in screw state, in the case where the vortex of fluid perturbs effect, ensure flyash 11 with well liquid 12 enter
In liquid connector 8, so as to avoid caused by flyash 11 deposits between screw pump rotor 5 and screw pump stator 4 in well liquid 12
Holddown phenomenon；The liquid feed valve 2 of the utility model can be prevented using the lateral inlet opening 2-1 structures of evacuation flyash sedimentation channel T
The flyash 11 only settled is again sucked into well liquid 12.
Claims (4)
1. a kind of anti-flyash bolt special pump of coal-bed gas exploitation, characterized in that the special spiral shell of the anti-flyash of coal-bed gas exploitation
Bar pump includes oil pipe (9), outlet connector (8), annular desilting connector (7), screw pump rotor (5), screw pump stator (4), outer tube
(6), rotor spacer pin (3), liquid feed valve (2), lower reducer union (1) and tail pipe (10)；The oil pipe (9), outlet connector (8),
Annular desilting connector (7), screw pump stator (4), rotor spacer pin (3), liquid feed valve (2), lower reducer union (1) and tail pipe (10)
It is sequentially connected from top to bottom；The screw pump rotor (5) is sleeved in screw pump stator (4) inner cavity, and lower end is limited by rotor
It sells (3) and realizes axial support positioning, upper end is connect with the sucker rod of coal-bed gas exploitation equipment；The outer tube (6) is sleeved on screw rod
Outside pump stator (4) and rotor spacer pin (3), be mounted between liquid feed valve (2) and annular desilting connector (7), in outer tube (6) and
Screw pump stator (4), rotor spacer pin form toroidal cavity between (3)；It is equipped with first in described annular desilting connector (7) tube wall
Settle cavity (7-1)；The second sedimentation cavity (2-2) is equipped in liquid feed valve (2) tube wall；The first sedimentation cavity (7-1),
Toroidal cavity and the second sedimentation cavity (2-2) up and down, form the flyash being connect with lower reducer union (1) and tail pipe (10)
It settles channel (T).
2. the anti-flyash bolt special pump of coal-bed gas exploitation according to claim 1, characterized in that the screw pump rotor
(5) upper end passes through annular desilting connector (7) inner cavity, stretches in oil pipe (9).
3. the anti-flyash bolt special pump of coal-bed gas exploitation according to claim 2, characterized in that the liquid feed valve (2)
Equipped with lateral inlet opening (2-1).
4. the anti-flyash bolt special pump of coal-bed gas exploitation according to claim 1 or 2 or 3, characterized in that the oil pipe
(9), outlet connector (8), annular desilting connector (7), screw pump stator (4), rotor spacer pin (3), liquid feed valve (2), lower reducing
Connector (1) passes sequentially through helicitic texture with tail pipe (10) and connects from top to bottom；The outer tube (6) is connected through a screw thread structure installation
Between liquid feed valve (2) and annular desilting connector (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820040080.7U CN207761935U (en) | 2018-01-10 | 2018-01-10 | A kind of anti-flyash bolt special pump of coal-bed gas exploitation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820040080.7U CN207761935U (en) | 2018-01-10 | 2018-01-10 | A kind of anti-flyash bolt special pump of coal-bed gas exploitation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207761935U true CN207761935U (en) | 2018-08-24 |
Family
ID=63183966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820040080.7U Active CN207761935U (en) | 2018-01-10 | 2018-01-10 | A kind of anti-flyash bolt special pump of coal-bed gas exploitation |
Country Status (1)
| Country | Link |
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| CN (1) | CN207761935U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116201728A (en) * | 2022-12-22 | 2023-06-02 | 华创机器人制造有限公司 | Special screw pump for submersible screw pump oil extraction machine and manufacturing method |
-
2018
- 2018-01-10 CN CN201820040080.7U patent/CN207761935U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116201728A (en) * | 2022-12-22 | 2023-06-02 | 华创机器人制造有限公司 | Special screw pump for submersible screw pump oil extraction machine and manufacturing method |
| CN116201728B (en) * | 2022-12-22 | 2024-02-13 | 华创机器人制造有限公司 | Special screw pump for submersible screw pump oil extraction machine and manufacturing method |
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