CN219953311U - Drainage pressure reducing device of coalbed methane exploration well - Google Patents

Abstract

The utility model provides a drainage and pressure-reducing device for coalbed methane exploration wells, which includes: a base; and an electric pump main body, which is fixedly installed on the right side of the top of the base. The input pipe of the electric pump main body is fixedly connected to a pumping pipe. The output pipe of the electric pump main body is fixedly connected to a drainage pipe; a control box is fixedly installed on the top of the base near the side of the electric pump main body, and the output end of the control box is electrically connected to the input end of the electric pump main body. Sexual connection; four hydraulic pumps are equidistantly installed at the four corners of the bottom of the base. When the utility model is in use, the staff energizes the power motor through an external power supply when using the device. The first bevel gear The meshing connection with the second bevel gear causes the fan blades to rotate at high speed at the bottom of the filter plate, generating centrifugal force to move the solid impurities blocked on the filter plate to the vicinity of the edge baffle without causing any loss to the equipment, thus increasing the equipment service life.

Description

A drainage and pressure reducing device for coalbed methane exploration wells

Technical field

The utility model relates to the technical field of coalbed methane mining equipment, and in particular to a drainage and pressure reducing device for coalbed methane exploration wells.

Background technique

Coalbed methane and natural gas have always been an important energy source. Compared with coal and petroleum, coalbed methane and natural gas do not pollute the environment and are designated as clean energy. However, one of the biggest problems that hinders the full exploitation of natural gas is water production from gas wells, which often causes gas wells to Water flooding means that the water in the wellbore blocks the natural gas in the formation from flowing into the well, making it impossible to extract natural gas to the surface. The drainage methods currently used can be roughly summarized into these three categories: The first type of foam drainage is to put energy and water into the bottom of the well. Chemicals that react with water or generate foam in water fill the wellbore with foam. On the one hand, it can increase the pressure at the bottom of the well and achieve the purpose of drainage. At the same time, the foam itself can also carry water. The second needle plunger drains water. This method is through Place a plunger in the wellbore and use the energy of the gas well itself to drain water intermittently. The third method uses an electric pump (piston pump or submersible pump) to pump the water from the bottom of the well to the surface.

In the existing technology, for example, the Chinese patent number is: CN206737893U, a drainage and pressure reduction device for coalbed methane exploration wells, which belongs to the technical field of coalbed methane mining equipment. The utility model is specifically a drainage and depressurization device for coalbed methane exploration wells. An electric pump main body is fixedly installed on the top of the device main body. The input pipe of the electric pump main body is connected to a water pumping pipe. The water pumping pipe is The outer sleeve is equipped with a soundproof casing, the liquid inlet end of the soundproof casing is connected to a crushing barrel, the output pipe of the electric pump main body is connected to a drainage pipe, a control box is fixedly installed above the device main body, and the electric pump The input end of the main body is electrically connected to the output end of the control box, and a barrel cover is connected to the top of the crushing barrel. The utility model describes a drainage and pressure reducing device for coalbed methane exploration wells, which can achieve more precise and efficient drainage, effectively improve the stability of the operation of the device, and bring better use prospects.

The beneficial effect of the above technical solution is that in the process of depressurizing and draining coalbed methane wells through this device, coal sludge is often released from the coal seam, thereby blocking the water pipes used for drainage, resulting in a reduction in water output or even no water output, which may seriously damage the coalbed methane well. It is more inconvenient to shut down the machine and stop production. However, during the drainage process, the solid impurities in the coal seam are not only coal slurry, but also some hard solid impurities including stones, etc. that are broken through the crushing barrel, which will cause the loss of the crushing barrel and even damage the crushing barrel. Reduce work efficiency and reduce the service life of equipment.

Utility model content

The purpose of this utility model is to solve the problem in the prior art that during the drainage process, the solid impurities in the coal seam are not only coal powder and slime, but some hard solid impurities including stones are broken through the crushing barrel, which will cause the loss of the crushing barrel. , seriously even damaging the crushing barrel, reducing work efficiency, and reducing the service life of the equipment.

In order to achieve the above purpose, the utility model adopts the following technical solution: a drainage and pressure reducing device for coal bed methane exploration wells, including:

base;

The electric pump main body is fixedly installed on the right side of the top of the base. The input pipe of the electric pump main body is fixedly connected to a water pumping pipe, and the output pipe of the electric pump main body is fixedly connected to a drainage pipe;

A control box is fixedly installed on one side of the top of the base close to the main body of the electric pump, and the output end of the control box is electrically connected to the input end of the main body of the electric pump;

Four hydraulic pumps are fixedly installed at the four corners of the bottom of the base at the same distance.

Preferably, a water outlet is provided at the bottom of the water pump, a filter plate is fixedly installed on the inner wall of the water pump close to the water outlet, and three equally spaced baffles are fixedly installed on the outer wall of the water pump away from the water outlet. .

Preferably, two fixed blocks are fixedly connected to one side of the bottom of the water pumping pipe, and a power motor is fixedly installed on the other side of the two fixed blocks. The input end of the power motor is electrically connected to the output end of the control box. Connection, a waterproof vacuum tube is fixedly connected at the center of the top of the filter plate, the other end of the waterproof vacuum tube is fixedly connected in the middle of the two fixed blocks, and the waterproof vacuum tube is fixed through the outer wall of the water pumping pipe.

Preferably, the output shaft of the power motor is fixedly connected to a first rotating shaft, the other side of the first rotating shaft is fixedly connected to a first bevel gear, and the first bevel gear is meshed with a second bevel gear. , the second rotating shaft is fixedly connected to the bottom of the second bevel gear.

Preferably, a plurality of equally spaced fan blades are fixedly mounted on the bottom of the second rotating shaft, and a limiting plate is fixedly mounted on the bottom of the second rotating shaft away from the fan blades.

Preferably, a plurality of equidistant drain outlets are provided at the bottom of the drain pipe away from the main body of the electric pump.

Compared with the existing technology, the advantages and positive effects of this utility model are:

1. In this utility model, when the staff is using the device, they control the main body of the electric pump to work through the control box. When the main body of the electric pump pumps water through the water pumping pipe, the filter plate on the water pumping port is used to separate the solid and liquid of the water flow, and then through The external power supply energizes the power motor, and the forward rotation of the power motor drives the first rotating shaft to rotate in the same direction as the first bevel gear. Through the meshing connection between the first bevel gear and the second bevel gear, the second bevel gear and the second bevel gear are driven to rotate. The shaft rotates, causing the fan blades to rotate at high speed on the filter plate, generating centrifugal force to move the solid impurities blocked on the filter plate to the vicinity of the edge baffle. Since there is no suction inside the water pipe at the position of the baffle, the solid impurities will not return The filter plate blocks the water inlet without causing any loss to the equipment, thereby increasing the service life of the equipment.

2. In this utility model, when workers use the device, they first place the device base steadily on the ground, and adjust the appropriate angle of the device by raising or lowering the four hydraulic pumps to make it more stable and convenient during work. It is more practical for users to use.

Description of the drawings

Figure 1 is a schematic three-dimensional structural diagram of a drainage and pressure reducing device for a coalbed methane exploration well according to the present invention;

Figure 2 is a schematic three-dimensional structural diagram of a drainage and pressure reducing device for a coalbed methane exploration well according to the present invention;

Figure 3 is a partial three-dimensional structural schematic diagram of a drainage and pressure reducing device for a coalbed methane exploration well according to the present invention;

Figure 4 is a partial cross-sectional three-dimensional structural schematic diagram of a drainage and pressure reducing device for a coalbed methane exploration well according to the present invention.

Legend: 1. Base; 2. Main body of electric pump; 3. Water pipe; 4. Drainage pipe; 401. Drainage outlet; 5. Control box; 6. Hydraulic pump; 7. Power motor; 701. Fixing block; 702. The first rotating shaft; 703. The first bevel gear; 704. Waterproof vacuum tube; 705. The second rotating shaft; 706. The second bevel gear; 707. Fan blade; 708. Limiting plate; 8. Water suction port; 801. Filter Plate; 802, baffle.

Detailed ways

In order to understand the above-mentioned objects, features and advantages of the present invention more clearly, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments. It should be noted that, as long as there is no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

Many specific details are set forth in the following description in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described here. Therefore, the present utility model is not limited to the specific disclosure of the specification below. Limitations of Examples.

Embodiment 1, as shown in Figures 1-4, the utility model provides a drainage and pressure reducing device for coalbed methane exploration wells, including:

Base 1;

The electric pump main body 2 is fixedly installed on the right side of the top of the base 1. The input pipe of the electric pump main body 2 is fixedly connected to the suction pipe 3, and the output pipe of the electric pump main body 2 is fixedly connected to the drainage pipe 4;

The control box 5 is fixedly installed on the side of the top of the base 1 close to the electric pump main body 2, and the output end of the control box 5 is electrically connected to the input end of the electric pump main body 2;

Four hydraulic pumps 6 are fixedly installed at the four corners of the bottom of the base 1 at the same distance.

Further, as shown in Figure 1-4, a water outlet 8 is provided at the bottom of the water pipe 3, a filter plate 801 is fixedly installed on the inner wall of the water pipe 3 close to the water outlet 8, and three filter plates 801 are fixedly installed on the outer wall of the water pipe 3 away from the water outlet 8. Two equidistant baffles 802 are fixedly installed on the water suction port 8 through the filter plate 801. The solids and moisture in the coal seam can be separated through filtration. The aqueous solution is passed through the water suction port 8 through the water suction pipe 3 through the electric pump body 2. Pumped into the ground, and then discharged through the drainage pipe 4, the function of the filter plate 801 is to filter and separate, and the function of the baffle 802 is to block solid impurities, stones, etc., to prevent them from flying out of the scope of the baffle 802 too quickly through centrifugal force and causing harm.

Further, as shown in Figure 1-4, two fixed blocks 701 are fixedly connected to one side of the bottom of the water pumping pipe 3, and a power motor 7 is fixedly installed on the other side of the two fixed blocks 701. The input end of the power motor 7 is connected to The output end of the control box 5 is electrically connected, a waterproof vacuum tube 704 is fixedly connected to the top center of the filter plate 801, the other end of the waterproof vacuum tube 704 is fixedly connected between the two fixed blocks 701, and the waterproof vacuum tube 704 is fixed through the water pumping pipe 3 On the outer wall, the function of the two fixed blocks 701 is to maintain the stability of the power motor 7. The function of the power motor 7 is to provide initial power for the internal rotating shaft, bevel gear, etc. The function of the waterproof vacuum tube 704 is mainly to provide the internal working rotating shaft. , bevel gears, etc. are provided with waterproofing to prevent water flow from reducing their working efficiency and protect the service life of the parts.

Further, as shown in Figures 1-4, the output shaft of the power motor 7 is fixedly connected to a first rotating shaft 702, and the other side of the first rotating shaft 702 is fixedly connected to a first bevel gear 703. The first bevel gear 703 is The second bevel gear 706 is meshed and connected, and the second rotating shaft 705 is fixedly connected to the bottom of the second bevel gear 706. The function of this structure is to make the first rotation through the meshing connection of the first bevel gear 703 and the second bevel gear 706. The shaft 702 and the second rotation shaft 705 keep rotating synchronously.

Further, as shown in Figure 1-4, a plurality of fan blades 707 with equal distances are fixedly installed on the bottom of the second rotating shaft 705, and a limiting plate 708 is fixedly installed on the bottom of the second rotating shaft 705 away from the fan blades 707. The main function of the leaf 707 is to separate solid impurities such as stones and stones from the water flow through the centrifugal force caused by its high-speed rotation, preventing the filter plate 801 from being blocked during the drainage process, and the solid impurities gradually move away from the center through the centrifugal force and approach the baffle 802, and in The position of the baffle 802 loses the suction during the drainage process and leaves the vicinity of the water suction port 8. The function of the limiting plate 708 is mainly to limit the fan blade 707 to prevent it from falling off during high-speed rotation.

Further, as shown in Figure 1-4, a plurality of equidistant drain outlets 401 are provided at the bottom of the drain pipe 4 on the side away from the electric pump body 2. Through the multiple equidistant drain outlets 401, the drain pipe can be connected The water flow in 4 is discharged separately according to the water pressure to reduce drainage pressure.

Working principle: When using the device, the staff first places the device base 1 stably on the ground, and adjusts the appropriate angle of the device by raising or lowering the four hydraulic pumps 6 to make it more stable during work. Through the control box 5. Control the electric pump main body 2 to work. When the electric pump main body 2 pumps water through the water pumping pipe 3, the filter plate 801 on the water pumping port 8 is used to separate the solid and liquid of the water flow, and then the power motor 7 is energized through an external power supply. The forward rotation of the motor 7 drives the first rotating shaft 702 and the first bevel gear 703 to rotate in the same direction. Through the meshing connection between the first bevel gear 703 and the second bevel gear 706, the second bevel gear 706 and the second rotating shaft 705 are driven to rotate. , causing the fan blade 707 to rotate at high speed at the bottom of the filter plate 801, generating centrifugal force to move the solid impurities blocked on the filter plate 801 to the vicinity of the edge baffle 802. Since the position of the baffle 802 has no suction inside the water pipe 3, the solid impurities, etc. It will not return to the filter plate 801 to block the water outlet 8, and will not cause any loss to the equipment, thereby increasing the service life of the equipment. At the same time, the multiple drainage outlets 401 on the drainage pipe 4 can divert the water flow in the drainage pipe 4 It is discharged separately according to the water pressure to reduce the drainage pressure and is convenient for users to use, which is more practical.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in other forms. Any skilled person familiar with the art may make changes or modifications to equivalent changes using the technical contents disclosed above. Equivalent embodiments can be used in other fields, but any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solutions of the present utility model still belong to the technical solutions of the present utility model. scope of protection.

Claims (6)

1. Drainage pressure reducing device of coalbed methane exploration well, characterized by comprising:

a base (1);

the electric pump main body (2) is fixedly arranged on the right side of the top of the base (1), an input pipe of the electric pump main body (2) is fixedly connected with a water pumping pipe (3), and an output pipe of the electric pump main body (2) is fixedly connected with a drain pipe (4);

the control box (5) is fixedly arranged at one side, close to the electric pump main body (2), of the top of the base (1), and the output end of the control box (5) is electrically connected with the input end of the electric pump main body (2);

the four hydraulic pumps (6) are fixedly arranged at four corners of the bottom of the base (1) at equal intervals.

2. The drainage and depressurization device for a coalbed methane exploration well according to claim 1, wherein: the bottom of the water pumping pipe (3) is provided with a water pumping port (8), the inner wall of the water pumping pipe (3) is close to the water pumping port (8), a filter plate (801) is fixedly installed on the water pumping port, and three baffle plates (802) with the same equal distance are fixedly installed on the outer wall of the water pumping pipe (3) and away from the water pumping port (8).

3. The drainage and depressurization device of a coalbed methane exploration well according to claim 2, wherein: one side fixedly connected with two fixed blocks (701) of condenser tube (3) bottom, two opposite side fixed mounting of fixed block (701) has motor power (7), the input of motor power (7) and the output electric connection of control box (5), the department fixedly connected with waterproof vacuum tube (704) in the top center of filter (801), the other end fixed connection of waterproof vacuum tube (704) is in the centre of two fixed blocks (701), just the fixed of waterproof vacuum tube (704) runs through the outer wall of condenser tube (3).

4. A drainage and depressurization device for a coalbed methane exploration well according to claim 3 and characterized in that: the output shaft of the power motor (7) is fixedly connected with a first rotating shaft (702), the other side of the first rotating shaft (702) is fixedly connected with a first bevel gear (703), a second bevel gear (706) is connected to the first bevel gear (703) in a meshed mode, and a second rotating shaft (705) is fixedly connected to the bottom of the second bevel gear (706).

5. The drainage and depressurization device for a coalbed methane exploration well of claim 4, wherein: the bottom of the second rotating shaft (705) is fixedly provided with a plurality of equally spaced fan blades (707), and a limiting plate (708) is fixedly arranged on the second rotating shaft (705) far away from the bottom of the fan blades (707).

6. The drainage and depressurization device for a coalbed methane exploration well according to claim 1, wherein: the bottom of one side of the drain pipe (4) far away from the electric pump main body (2) is provided with a plurality of drain outlets (401) with the same equidistance.