CN209761712U - Can water-gas separation prevent buggy screw pump device - Google Patents
Can water-gas separation prevent buggy screw pump device Download PDFInfo
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- CN209761712U CN209761712U CN201920610744.3U CN201920610744U CN209761712U CN 209761712 U CN209761712 U CN 209761712U CN 201920610744 U CN201920610744 U CN 201920610744U CN 209761712 U CN209761712 U CN 209761712U
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Abstract
The utility model relates to a coal dust prevention screw pump device capable of separating water and gas, which comprises a sleeve, wherein an oil pipe, a screw pump, a torque anchor, a water-gas separator and a sieve pipe which are sequentially communicated are arranged in the sleeve; the oil pipe is internally provided with a sucker rod which is fixedly connected with a rotor of the screw pump. The water-gas separator comprises a tubular body, an upper joint is arranged at the upper end of the body, and a lower joint is arranged at the lower end of the body; a columnar rod body is arranged inside the body; a spiral diversion trench is arranged on the outer circumference of the rod body; the lower end of the rod body is fixedly connected with the lower joint; a first channel which is vertically arranged is arranged in the middle of the upper joint, and a second channel which is vertically arranged is arranged at the edge of the upper joint; the side part of the upper joint is provided with a gas outlet communicated with the first channel, and the top part of the upper joint is provided with a water outlet communicated with the second channel. The water pump device separates water from air in the water pumping process, and has the advantages of simple structure, convenient installation, air lock generation due to the fact that air is prevented from entering a pump body, good water-air separation effect, high water pumping efficiency and the like.
Description
Technical Field
The utility model relates to a can water-gas separation prevent buggy screw pump device belongs to oil machinery and equips technical field.
Background
A screw pump is a positive displacement rotary pump which sucks and discharges a liquid by a change in the volume of a sealed chamber formed by a screw and a liner. The screw pumps are divided into single screw pumps, double, triple and quintuple screw pumps according to the number of screws. The screw pump has the characteristics of stable flow, small pressure pulsation, self-suction capability, low noise, high efficiency, long service life and reliable work; the device has the outstanding advantages that no vortex is formed when the medium is conveyed, the device is not sensitive to the viscosity of the medium, and the device can convey high-viscosity medium. Screw pumps are a common oil production device.
In recent years, with the further development of screw pump oil extraction technology, screw oil pump oil extraction equipment is not only widely applied to oil field crude oil extraction, but also increasingly deepens into the coal bed methane development field. However, a series of problems exist in coal bed gas development, and currently, the following main problems exist in coal bed gas development in China: 1. the coal bed gas contains a large amount of coal dust, and after the coal bed gas is mined for a period of time, the coal dust is deposited at the outlet of the pump to cause pump blockage. 2. The coal-bed gas well has high requirement on the liquid level, the pump submergence is generally required to be 5-10 meters, and the precision error of the liquid level is required to be below 1 meter. 3. The difference between the initial drainage of the coal-bed gas well and the drainage after gas outlet is large, and the displacement range of the pump is large. 4. Air lock is easily generated when a large amount of air enters the pump cylinder.
When the screw pump is used on site, a water-gas separator is additionally arranged in some screw pump equipment, but the screw pump equipment has the defects of poor separation effect, complex structure, high manufacturing cost and the like.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to above not enough, provide a can water-gas separation prevent buggy screw pump device, pump water in-process can separate the aqueous vapor, has simple structure, simple to operate, water-gas separation are effectual, advantage such as pump water is efficient.
For solving the above problem, the utility model discloses a technical scheme as follows:
a coal dust prevention screw pump device capable of separating water from gas comprises a water-gas separator, wherein the water-gas separator comprises a tubular body, a detachable upper joint is mounted at the upper end of the body, and a detachable lower joint is mounted at the lower end of the body; a columnar rod body is arranged inside the body, and the outer diameter of the rod body is matched with the inner diameter of the body; a spiral diversion trench is arranged on the outer circumference of the rod body; the lower end of the rod body is fixedly connected with the lower joint; the lower joint is provided with a cavity with an opening at the lower part, the upper end of the cavity is provided with a through hole which is obliquely and upwards arranged, and the upper end of the through hole is close to the peripheral edge of the lower joint; the middle part of the lower end of the upper joint is provided with a first channel which is vertically arranged, and the edge of the lower end of the upper joint is provided with a second channel which is vertically arranged; the lateral part of the upper joint is provided with a gas outlet communicated with the first channel, and the top part of the upper joint is provided with a water outlet communicated with the second channel.
according to an optimized scheme, a cylindrical section with the diameter smaller than that of the rod body is arranged at the upper end of the rod body, and the upper end and the conical top of the cylindrical section are arranged; the conical top is positioned below the first channel, and the lower end of the first channel is provided with a flaring.
According to an optimized scheme, the upper joint is detachably connected with the body through threads, and a fastening screw or a bolt is further arranged between the upper joint and the body; the upper end of the upper joint is provided with an internal thread for connection.
According to an optimized scheme, the lower joint is detachably connected with the body through threads, and a fastening screw or a bolt is further arranged between the lower joint and the body; the lower end of the lower joint is provided with an external thread for connection.
According to an optimized scheme, the coal dust prevention screw pump device capable of separating water from gas further comprises a sleeve, wherein an oil pipe, a screw pump, a torque anchor, the water-gas separator and a sieve pipe are arranged in the sleeve and sequentially communicated from top to bottom; the screw pump comprises a stator and a rotor, a sucker rod is arranged in the oil pipe, and the lower end of the sucker rod is fixedly connected with the upper end of the rotor.
According to the optimization scheme, the lower end of the sieve tube is connected with a tail tube, and the lower end of the tail tube is provided with a plug which is detachably connected.
According to the optimization scheme, a pressure gauge device is arranged between the screw pump and the torque anchor.
The utility model adopts the above technical scheme, compare with prior art, have following advantage:
1. The utility model discloses a can water-gas separation prevent buggy screw pump device can separate the aqueous vapor at the pump water in-process, has simple structure, and simple to operate, aqueous vapor separation are effectual, pump water advantage such as efficient, low in manufacturing cost.
2. due to the structural design of the water-gas separator, water with high density flows out from the water outlet through the second channel at the edge after the water-gas mixture passes through the spirally arranged diversion trench, and continues to go upwards and is pumped out. The gas with lower density can go upwards along the cylindrical section and the conical top in the middle part and is discharged from the gas outlet, and the discharged gas can go upwards along the inner cavity of the sleeve or go downwards to return to the underground water layer. When the water-gas mixture passes through the water-gas separator, the water and the gas are effectively separated, most of the gas can be separated and does not enter the pump barrel, the pumping efficiency is improved, the problems of air lock and pump burning are prevented, and the water pumping efficiency of the coal dust prevention screw pump device capable of separating water from gas is improved.
3. The bottom of the device is provided with a sieve tube which can block sand and stone and prevent the sand and stone from entering the pump body, so that the pump body is prevented from being blocked by coal powder. The present invention will be described in detail with reference to the accompanying drawings and examples.
Drawings
FIG. 1 is a schematic structural view of a pulverized coal-proof screw pump device capable of water-gas separation according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of the water-gas separator in FIG. 1;
FIG. 3 is a schematic diagram of the pressure gauge apparatus of FIG. 1;
In the figure, 1-casing pipe, 2-oil pipe, 3-screw pump, 4-torque anchor, 5-moisture separator, 6-sieve pipe, 7-tail pipe, 8-plug, 9-pressure gauge device, 10-stator, 11-rotor, 12-sucker rod, 13-body, 14-upper connector, 15-lower connector, 16-rod body, 17-diversion groove, 18-chamber, 19-through hole, 20-water outlet, 21-first channel, 22-second channel, 23-cylindrical section, 24-conical top, 25-flaring, 26-supporting cylinder, 27-sensor, 28-cable and 29-gas outlet.
Detailed Description
Examples
as shown in the figures 1, 2 and 3, the water-gas separation coal dust prevention screw pump device comprises a sleeve 1, and an oil pipe 2, a screw pump 3, a torsion anchor 4, a water-gas separator 5 and a sieve pipe 6 which are sequentially communicated from top to bottom are arranged in the sleeve 1. The screw pump 3 comprises a stator 10 and a rotor 11, a sucker rod 12 is arranged in the oil pipe 2, and the lower end of the sucker rod 12 is fixedly connected with the upper end of the rotor 11. A common fixing device for oil extraction machinery is used as the torsion anchor 4, the torsion anchor 4 and components fixed together with the torsion anchor 4 can be fixed on the inner wall of the casing 1 in the implementation, the fixing effect is achieved, the torsion and the sliding of equipment in the use process are prevented, the impact on the equipment is reduced, and the service life of the equipment is prolonged. Any torsion anchor 4 with internal through-flow and securing action known in the art can be used in this embodiment and its construction will not be described in detail here.
As shown in figures 1, 2 and 3, the lower end of the sieve tube 6 is connected with a tail tube 7, and the lower end of the tail tube 7 is provided with a plug 8 which is detachably connected. The sieve tube 6 has the function of filtering impurities such as sand, and the tail tube 7 is arranged at the lower end of the sieve tube 6, so that the sieve tube 6 of the device can be effectively prevented from being placed in a water area with high sand impurity content at the bottom of a groundwater layer when in use. A pressure gauge device 9 is arranged between the screw pump 3 and the torsion anchor 4. The pressure gauge device 9 comprises a support cylinder 26, and two ends of the support cylinder 26 are respectively fixedly connected with the screw pump 3 and the torsion anchor 4. A sensor 27 is arranged in the support cylinder 26, and a cable 28 of the sensor 27 penetrates out of the support cylinder 26 and then is led out upwards through a gap between the support cylinder 26 and the sleeve 1. The sensors 27 can measure pressure, temperature and liquid level. With this installed sensor 27, downhole pressure and temperature can be monitored. During practical use, the rotating speed can be adjusted according to the monitoring data of the sensor 27, and the continuous, slow, long-term and stable fine mining and discharging target is realized.
As shown in fig. 1, 2 and 3, the moisture separator 5 includes a tubular body 13, a detachable upper joint 14 is mounted at the upper end of the body 13, and a detachable lower joint 15 is mounted at the lower end of the body 13. A columnar rod body 16 is arranged inside the body 13, and the outer diameter of the rod body 16 is matched with the inner diameter of the body 13; the outer circumference of the rod body 16 is provided with a spiral diversion trench 17. The lower end of the rod body 16 is fixedly connected with the lower joint 15. The lower joint 15 is provided with a cavity 18 with a lower opening, the upper end of the cavity 18 is provided with a through hole 19 which is obliquely and upwards arranged, and the upper end of the through hole 19 is close to the peripheral side edge of the lower joint 15. The middle part of the lower end of the upper joint 14 is provided with a first channel 21 which is vertically arranged, and the edge is provided with a second channel 22 which is vertically arranged. The upper joint 14 is provided at a side thereof with a gas outlet 29 communicating with the first passage 21 and at a top thereof with a water outlet 20 communicating with the second passage 22. The upper end of the rod body 16 is provided with a cylindrical section 23 with the diameter smaller than that of the rod body 16, and the upper end of the cylindrical section 23 and a conical top 24. The conical tip 24 is located below the first channel 21, and the lower end of the first channel 21 is provided with a flared opening 25.
As shown in fig. 1, 2 and 3, the upper joint 14 is detachably connected to the body 13 through a screw, and a fastening screw is further provided between the upper joint 14 and the body 13, but a bolt connection may be adopted. The upper end of the upper joint 14 is provided with an internal thread for connection. The lower joint 15 is detachably connected with the body 13 through threads, and a fastening screw is further arranged between the lower joint 15 and the body 13, and of course, the lower joint and the body can be connected through bolts. The lower end of the lower joint 15 is provided with external threads for connection.
When the device is used, an external power device drives the rotor 11 of the screw pump 3 to rotate through the sucker rod 12, and the water-gas mixture in the water layer is sucked in through the sieve tube 6. When the water-gas mixture ascends to the water-gas separator 5, the water passes through the spirally arranged diversion trench 17, and at the outlet position of the diversion trench 17, the water with higher density flows out from the edge second channel 22 to the water outlet 20 and continues to ascend to be pumped out. The less dense gas will travel up the middle cylindrical section 23 and conical tip 24 to be discharged through the gas outlet 19, and the discharged gas will travel up the interior of the casing or travel back down the casing into the groundwater table. When the water-gas mixture passes through the water-gas separator 5, the water and the gas are effectively separated, and the water pumping efficiency of the coal dust prevention screw pump device capable of separating water from gas is improved.
The utility model discloses a can water-gas separation prevent buggy screw pump device can separate the aqueous vapor at the pump water in-process, has simple structure, and simple to operate, aqueous vapor separation are effectual, advantage such as pump water is efficient.
finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A coal dust prevention screw pump device capable of separating water from gas, which is characterized by comprising a water-gas separator (5),
The water-gas separator (5) comprises a tubular body (13), a detachable upper joint (14) is installed at the upper end of the body (13), and a detachable lower joint (15) is installed at the lower end of the body (13);
A columnar rod body (16) is arranged inside the body (13), and the outer diameter of the rod body (16) is matched with the inner diameter of the body (13); a spiral diversion trench (17) is arranged on the outer circumference of the rod body (16); the lower end of the rod body (16) is fixedly connected with the upper end of the lower joint (15);
a cavity (18) with an opening at the lower part is arranged on the lower joint (15), a through hole (19) which is obliquely and upwards arranged is arranged at the upper end of the cavity (18), and the upper end of the through hole (19) is close to the peripheral side edge of the lower joint (15);
A first channel (21) which is vertically arranged is arranged in the middle of the lower end of the upper joint (14), and a second channel (22) which is vertically arranged is arranged at the edge of the upper joint; the side part of the upper joint (14) is provided with a gas outlet (29) communicated with the first channel (21), and the top part is provided with a water outlet (20) communicated with the second channel (22).
2. The water-gas separable coal dust prevention screw pump device according to claim 1, wherein: a cylindrical section (23) with the diameter smaller than that of the rod body (16) is arranged at the upper end of the rod body (16), and the upper end of the cylindrical section (23) and a conical top (24) are arranged; the conical top (24) is positioned below the first channel (21), and the lower end of the first channel (21) is provided with a flaring (25).
3. The water-gas separable coal dust prevention screw pump device according to claim 1, wherein: the upper joint (14) is detachably connected with the body (13) through threads, and a fastening screw or a bolt is arranged between the upper joint (14) and the body (13); the upper end of the upper joint (14) is provided with internal threads for connection.
4. The water-gas separable coal dust prevention screw pump device according to claim 1, wherein: the lower joint (15) is detachably connected with the body (13) through threads, and a fastening screw or a bolt is arranged between the lower joint (15) and the body (13); the lower end of the lower joint (15) is provided with an external thread for connection.
5. The water-gas separable coal dust prevention screw pump device according to claim 1, wherein: the coal dust prevention screw pump device capable of separating water from gas further comprises a sleeve (1), wherein an oil pipe (2), a screw pump (3), a torsion anchor (4), a water-gas separator (5) and a sieve pipe (6) which are sequentially communicated from top to bottom are arranged in the sleeve (1);
The screw pump (3) comprises a stator (10) and a rotor (11), a sucker rod (12) is arranged in the oil pipe (2), and the lower end of the sucker rod (12) is fixedly connected with the upper end of the rotor (11).
6. The pulverized coal-proof screw pump device capable of water-gas separation according to claim 5, characterized in that: the lower end of the sieve tube (6) is connected with a tail tube (7), and the lower end of the tail tube (7) is provided with a plug (8) which is detachably connected.
7. The pulverized coal-proof screw pump device capable of water-gas separation according to claim 5, characterized in that: and a pressure gauge device (9) is arranged between the screw pump (3) and the torque anchor (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920610744.3U CN209761712U (en) | 2019-04-30 | 2019-04-30 | Can water-gas separation prevent buggy screw pump device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920610744.3U CN209761712U (en) | 2019-04-30 | 2019-04-30 | Can water-gas separation prevent buggy screw pump device |
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| CN209761712U true CN209761712U (en) | 2019-12-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114033338A (en) * | 2021-11-18 | 2022-02-11 | 应急管理部信息研究院 | Device and method for testing self-suction pressure of coal bed gas underground screw pump |
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2019
- 2019-04-30 CN CN201920610744.3U patent/CN209761712U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114033338A (en) * | 2021-11-18 | 2022-02-11 | 应急管理部信息研究院 | Device and method for testing self-suction pressure of coal bed gas underground screw pump |
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