Gas-liquid two-phase pump capable of reducing gas content

Abstract

The invention relates to the technical field of pump bodies, in particular to a gas-liquid two-phase pump capable of reducing gas content, which comprises a motor main body, a motor shaft is rotatably mounted in the motor main body, a shell is mounted at the front end of the motor main body, a sealing rear cover is fixedly mounted on the rear side of the shell, and the sealing rear cover is fixedly connected with the front end of the motor main body. The motor comprises a motor main body, a motor shaft is arranged in the motor main body, a motor shaft is arranged in the motor main body, one end of the motor shaft penetrates through the sealing rear cover and extends into the shell, a liquid outlet pipe is fixedly connected to the upper end of the shell in an inserted mode, and a communicating pipeline is fixedly connected to the front end of the shell. At the moment, the liquid flows into the inner cavity of the communicating pipeline along the liquid inlet end, the liquid is filtered through the filtering silk screen, impurities and the like in the liquid are filtered out, the filtered liquid flows into the shell along the inner cavity of the communicating pipeline, and then the liquid is conveyed away through the liquid outlet pipe through rotation of the impeller plate.

Description

Technical Field

[0001] The invention relates to the technical field of pump bodies, in particular to a gas-liquid two-phase pump capable of reducing gas content. Background Art

[0002] When a centrifugal pump is transmitting a gas-liquid two-phase medium, cavitation is prone to occur, causing the impeller to be damaged and fail. Existing embodiments include using positive displacement pumps such as plunger pumps, gear pumps, and diaphragm pumps to replace centrifugal pumps. These positive displacement pumps have pressure pulsations, wear parts, and limited lifespans. Some other embodiments separate gas and liquid by adding orifice plates, but the orifice plates will greatly increase flow resistance and reduce hydraulic efficiency. In addition, some embodiments solve the problem by adding inducers, adding air holes to the impeller, etc. These measures have limited effects on the transportation of liquids with high gas content.

[0003] Existing gas-liquid two-phase pumps lack effective filtering mechanisms. Some gas-liquid two-phase pumps simply install a filter at the water inlet. Impurities that appear after long-term use will directly cause blockage of pipes, filters, etc., thereby affecting the inlet and outlet efficiency of the gas-liquid two-phase pump water flow, which is not conducive to practical use. Summary of the invention

[0004] The object of the present invention is to provide a gas-liquid two-phase pump capable of reducing the gas content, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a gas-liquid two-phase pump capable of reducing gas content, comprising a motor body, a motor shaft rotatably installed in the motor body, a shell installed at the front end of the motor body, a sealed rear cover fixedly installed on the rear side of the shell, the sealed rear cover is fixedly connected to the front end of the motor body, one end of the motor shaft passes through the sealed rear cover and extends into the shell, a liquid outlet pipe is fixedly plugged into the upper end of the shell, a connecting pipe is fixedly connected to the front end of the shell, a liquid inlet end is integrally formed at the front end of the connecting pipe, an air guide pipe is fixedly plugged into the upper end of the connecting pipe, an impeller seat is rotatably installed in the inner cavity of the shell, a raised cylinder is integrally formed on the front side of the impeller seat, a plurality of impeller plates are fixedly connected to the front side of the impeller seat in an annular array, and the motor shaft is connected to the impeller seat; A filtering mechanism is installed in the inner cavity of the connecting pipe for sliding back and forth, a connecting shaft is installed at the front end of the raised cylinder, a spirally distributed inducer is fixedly sleeved on the connecting shaft, a driving mechanism is installed at the front end of the connecting shaft, and a cleaning mechanism is installed on the filtering mechanism.

[0006] As a further solution of the present invention, a guide curved surface is provided at the connection between the inner cavity of the connecting pipe and the inner cavity of the liquid inlet end, and a circular hole matching the inner cavity of the connecting pipe is penetrated through the front side of the shell, and the inner cavity of the connecting pipe is connected with the inner cavity of the shell through the circular hole.

[0007] As a further solution of the present invention, one end of the motor shaft in the casing is fixedly sleeved with a circular docking joint, a clamping block is protruding from the side of the circular docking joint, the rear side of the impeller seat is recessed forward and provided with a circular docking groove, a clamping groove is provided on the side of the circular docking groove, the circular docking joint is plugged into the circular docking groove, and the clamping block on the side of the circular docking joint is clamped into the clamping groove.

[0008] As a further scheme of the present invention, the inner cavity of the connecting pipe is symmetrically provided with sliding grooves up and down, the filtering mechanism includes a circular bracket slidably installed in the inner cavity of the connecting pipe, the side of the circular bracket is provided with a plurality of fan-shaped flow grooves in an annular array, a circular groove is provided in the center position of the side of the circular bracket, a filter screen is fixedly installed on the front side of the circular bracket, a plurality of transmission hemispherical blocks are fixedly connected to the rear side of the circular bracket in an annular array, a slider is fixedly connected to the side of the circular bracket symmetrically up and down, a reset spring is fixedly installed on the front side of the slider, and the cleaning mechanism is installed on the circular bracket.

[0009] As a further solution of the present invention, the sliding block is connected to the sliding slot in a front-rear sliding manner, and one end of the reset spring is in contact with the front side of the sliding slot.

[0010] As a further solution of the present invention, baffles are symmetrically installed on the front side of the circular bracket, and an arc-shaped baffle is fixedly installed on the front end of the baffle. The arc-shaped baffle is fixedly connected to the inner wall of the connecting pipe, and the baffle is a completely corrugated plate.

[0011] As a further solution of the present invention, the front end of the raised cylinder is recessed backward to form a first regular polygonal groove, the rear end of the connecting shaft is fixedly connected with a first regular polygonal column, the first regular polygonal column is plugged into the first regular polygonal groove, the rear end of the connecting shaft is fixedly sleeved with a connecting ring, and the connecting ring is connected to the front end of the raised cylinder by bolts.

[0012] As a further scheme of the present invention, the cleaning mechanism includes a rotating column inserted into the circular groove, the front end of the rotating column is symmetrically fixedly connected with a cleaning brush, the brush end of the cleaning brush is in contact with the filter screen, the rear end of the rotating column is fixedly sleeved with two limiting rings, the two limiting rings are symmetrically distributed on the front and rear sides of the circular bracket, the two limiting rings are in rotational contact with the circular bracket, the front end of the rotating column is provided with a second regular polygonal groove extending backward, and the driving mechanism is installed at the rear end of the rotating column.

[0013] As a further solution of the present invention, the driving mechanism includes a second regular polygonal column which is slidably inserted into the second regular polygonal groove, the rear end of the second regular polygonal column is fixedly connected to a circular block, the front side of the circular block is fixedly connected to a plurality of rotating hemispherical blocks in a circular array, and the rear side of the circular block is fixedly connected to the front end of the connecting shaft.

[0014] The beneficial effects of the present invention are: 1. During operation, the impeller seat is driven to rotate by the motor shaft of the motor body, and the impeller seat drives the raised cylinder and the impeller plate to rotate synchronously. At this time, the liquid flows into the inner cavity of the connecting pipe along the liquid inlet end, and the liquid is filtered through the filter mesh to filter out impurities in the liquid. The filtered liquid flows into the shell along the inner cavity of the connecting pipe, and then the impeller plate rotates to transport the liquid through the liquid outlet pipe; when the raised cylinder rotates, it drives the first regular polygonal column to rotate synchronously, and the first regular polygonal column drives the connecting shaft and the inducer to rotate synchronously. The liquid is drained by the set inducer, so that the liquid can flow in a spiral, and then the liquid can be evenly mixed with the gas.

[0015] 2. When the connecting shaft rotates, it drives the driving mechanism to rotate, and the driving mechanism drives the cleaning brush in the cleaning mechanism to rotate, and the impurities filtered out from the front side of the filter screen are cleaned by the cleaning brush; through the cooperation of the set driving mechanism, slider and reset spring, the circular bracket can be reciprocated back and forth, and the filter screen is driven to shake back and forth through the circular bracket. The filter screen that shakes back and forth can not only separate it from the impurities, but also the shaking of the filter screen back and forth can mix the gas and liquid well, thereby avoiding a large amount of gas in a certain section of liquid.

[0016] 3. When the circular bracket shakes back and forth, it drives the cleaning mechanism to shake back and forth synchronously. At the same time, the rotation of the driving mechanism can drive the cleaning mechanism to rotate synchronously, so that the cleaning brush in the cleaning mechanism can continuously clean the filter screen. Through the cooperation of the set driving mechanism and the cleaning mechanism, it can effectively prevent impurities from causing blockage of the filter screen, ensuring the smooth flow of liquid.

[0017] 4. The circular bracket moves forward and backward to push the baffle to expand and contract. At this time, the inner side of the baffle bulges inward and contracts, and this reciprocates, thereby guiding the liquid in multiple directions, thereby achieving a good mixing of the liquid and the gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of a gas-liquid two-phase pump capable of reducing gas content according to the present invention; Figure 2 It is a side cross-sectional view of the local structure of the gas-liquid two-phase pump capable of reducing the gas content of the present invention; Figure 3 An exploded view of the motor shaft, housing, sealing back cover and impeller seat structure of the present invention; Figure 4 It is an exploded view of the impeller seat, the connecting shaft, the inducer and the first regular polygonal column structure of the present invention; Figure 5 A side cross-sectional view of the gas-liquid two-phase pump structure capable of reducing gas content of the present invention; Figure 6 for Figure 6 A schematic diagram of the structure enlargement in the middle; Figure 7 It is an exploded view of the connecting pipe, filtering mechanism, baffle, driving mechanism and cleaning mechanism of the present invention; Figure 8 It is an exploded view of the driving mechanism and cleaning mechanism structure of the present invention.

[0019] In the figure: 1. motor body; 11. motor shaft; 12. circular docking joint; 2. housing; 21. sealing back cover; 22. liquid outlet pipe; 3. connecting pipe; 31. liquid inlet end; 32. guide surface; 33. slide groove; 34. air guide pipe; 4. impeller seat; 41. raised cylinder; 42. circular docking groove; 43. card slot; 44. first regular polygonal groove; 45. impeller plate; 5. circular bracket; 51. fan-shaped flow groove; 52. circular groove; 53. filter screen; 54. transmission hemispherical block; 55. slider; 56. reset spring; 6. baffle; 61. arc-shaped baffle; 7. connecting shaft; 71. inducer; 72. first regular polygonal column; 73. circular block; 74. second regular polygonal column; 75. rotating hemispherical block; 8. rotating column; 81. second regular polygonal groove; 82. limit ring; 83. cleaning brush. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] See also Figures 1 to 8The present invention provides a technical solution: a gas-liquid two-phase pump capable of reducing gas content, comprising a motor body 1, characterized in that: a motor shaft 11 is rotatably installed in the motor body 1, a shell 2 is installed at the front end of the motor body 1, a sealed rear cover 21 is fixedly installed on the rear side of the shell 2, the sealed rear cover 21 is fixedly connected to the front end of the motor body 1, one end of the motor shaft 11 passes through the sealed rear cover 21 and extends into the shell 2, the motor shaft 11 is rotatably connected to the sealed rear cover 21, a liquid outlet pipe 22 is fixedly inserted at the upper end of the shell 2, and the inner cavity of the liquid outlet pipe 22 is connected to the shell 2 The inner cavity of the housing 2 is connected, the front end of the housing 2 is fixedly connected with a connecting pipe 3, the front end of the connecting pipe 3 is integrally formed with a liquid inlet end 31, the upper end of the connecting pipe 3 is fixedly plugged with an air guide pipe 34, the inner cavity of the air guide pipe 34 is connected with the inner cavity of the connecting pipe 3, the inner cavity of the housing 2 is rotatably mounted with an impeller seat 4, the rear side of the impeller seat 4 is in rotational contact with the front side of the sealing rear cover 21, the front side of the impeller seat 4 is integrally formed with a raised cylinder 41, the front side of the impeller seat 4 is fixedly connected with a plurality of impeller plates 45 in an annular array, and the motor shaft 11 is connected to the impeller seat 4; A filtering mechanism is installed in the inner cavity of the connecting pipe 3 for sliding back and forth. A connecting shaft 7 is installed at the front end of the raised cylinder 41. A spirally distributed inducer 71 is fixedly sleeved on the connecting shaft 7. A driving mechanism is installed at the front end of the connecting shaft 7. A cleaning mechanism is installed on the filtering mechanism.

[0022] See also Figure 2 , Figure 3 , Figure 5 and Figure 7 A guide curved surface 32 is provided at the connection between the inner cavity of the connecting pipe 3 and the inner cavity of the liquid inlet end 31, and a circular hole matching the inner cavity of the connecting pipe 3 is opened through the front side of the shell 2, and the inner cavity of the connecting pipe 3 is connected with the inner cavity of the shell 2 through the circular hole.

[0023] The liquid flows into the connecting pipe 3 along the liquid inlet end 31 , and the liquid is well guided by the provided guide curved surface 32 .

[0024] See also Figure 2 and Figure 3 A circular docking joint 12 is fixedly sleeved at one end of the motor shaft 11 in the housing 2, a clamping block is protruding from the side of the circular docking joint 12, the rear side of the impeller seat 4 is recessed forward and provided with a circular docking groove 42, a clamping groove 43 is provided on the side of the circular docking groove 42, the circular docking joint 12 is plugged into the circular docking groove 42, and the clamping block on the side of the circular docking joint 12 is clamped into the clamping groove 43.

[0025] The circular docking head 12 and the block thereon are driven to rotate synchronously through the motor shaft 11 , the impeller seat 4 is driven to rotate synchronously through the circular docking head 12 and the block, the impeller seat 4 drives the raised cylinder 41 and the impeller plate 45 to rotate synchronously, and the liquid is transported through the rotating impeller plate 45 .

[0026] See also Figure 2 , Figure 5 and Figure 7 The inner cavity of the connecting pipe 3 is symmetrically provided with slide grooves 33, and the filtering mechanism includes a circular bracket 5 slidably installed in the inner cavity of the connecting pipe 3. The side of the circular bracket 5 is provided with a plurality of fan-shaped flow grooves 51 in an annular array, and a circular groove 52 is provided in the center position of the side of the circular bracket 5. A filter screen 53 is fixedly installed on the front side of the circular bracket 5, and a plurality of transmission hemispherical blocks 54 are fixedly connected to the rear side of the circular bracket 5 in an annular array. A slider 55 is fixedly connected to the side of the circular bracket 5 symmetrically, and a reset spring 56 is fixedly installed on the front side of the slider 55. The cleaning mechanism is installed on the circular bracket 5.

[0027] The slider 55 is connected to the slide slot 33 for forward and backward sliding movement, and one end of the reset spring 56 abuts against the front side of the slide slot 33 .

[0028] The liquid flows into the inner cavity of the connecting pipe 3 along the liquid inlet end 31, and the liquid is filtered through the filter mesh 53 to filter out impurities in the liquid. The filtered liquid flows into the shell 2 along the inner cavity of the connecting pipe 3, and then the impeller plate 45 rotates to transport the liquid through the liquid outlet pipe 22.

[0029] The circular bracket 5 is shaken back and forth to drive the filter screen 53 to shake back and forth. The filter screen 53 shakes back and forth to shake off the impurities filtered out from the front side of the filter screen 53, thereby preventing the filter screen 53 from being blocked by the impurities. At the same time, the filter screen 53 shakes back and forth to mix the gas and liquid well, thereby preventing a certain section of the liquid from having a large amount of gas. When the circular bracket 5 shakes back and forth, it drives the slider 55 to slide back and forth along the slide groove 33, so that the circular bracket 5 can drive the filter screen 53 to shake back and forth stably.

[0030] When the circular bracket 5 is pushed forward by an external force, the circular bracket 5 drives the slider 55 to slide forward along the slide groove 33. At this time, the slider 55 squeezes the reset spring piece 56. When the external thrust releases the push on the circular bracket 5, the slider 55 slides backward under the action of the elastic force of the reset spring piece 56. The slider 55 drives the circular bracket 5 to slide backward, and so on, so that the circular bracket 5 can shake back and forth.

[0031] The front side of the circular bracket 5 is symmetrically installed with a baffle 6, and the front end of the baffle 6 is fixedly installed with an arc-shaped retaining bar 61, which is fixedly connected to the inner wall of the connecting pipe 3. The baffle 6 is a completely corrugated plate.

[0032] The baffle 6 is made of foldable and resilient rubber or other materials. The circular bracket 5 moves back and forth to push the baffle 6 to expand and contract. At this time, the inner side of the baffle 6 bulges inward and contracts, and so on, thereby guiding the liquid in multiple directions, thereby making the liquid and gas mix well.

[0033] See also Figure 2 , Figure 4 and Figure 5 The front end of the raised cylinder 41 is recessed backward to form a first regular polygonal groove 44, the rear end of the connecting shaft 7 is fixedly connected with a first regular polygonal column 72, the first regular polygonal column 72 is plugged into the first regular polygonal groove 44, the rear end of the connecting shaft 7 is fixedly sleeved with a connecting ring, and the connecting ring is connected to the front end of the raised cylinder 41 by bolts.

[0034] When the raised cylinder 41 rotates, it drives the first regular polygonal column 72 to rotate synchronously, and the first regular polygonal column 72 drives the connecting shaft 7 and the inducer wheel 71 to rotate synchronously.

[0035] The baffle separation theory uses the baffle plate 6 for coarse separation to reduce the gas content. The wire mesh separation theory uses the filter wire mesh 53 for fine separation to further reduce the gas content. The inducer 71 theory uses the inducer 71 for low-gas liquid transportation to increase the head and efficiency and reduce the cavitation margin.

[0036] See also Figures 5 to 8 The cleaning mechanism includes a rotating column 8 that is inserted into the circular groove 52, and the rotating column 8 is rotatably connected to the circular groove 52. A cleaning brush 83 is symmetrically fixedly connected to the front end of the rotating column 8, and the brush end of the cleaning brush 83 is in contact with the filter screen 53. Two limit rings 82 are fixedly sleeved on the rear end of the rotating column 8. The two limit rings 82 are symmetrically distributed on the front and rear sides of the circular bracket 5. The two limit rings 82 are both in rotational contact with the circular bracket 5. A rotating groove matching the limit ring 82 is opened in the middle position of the filter screen 53, and the limit ring 82 is arranged in the rotating groove. A second regular polygonal groove 81 is opened through the front end of the rotating column 8 backwards, and the driving mechanism is installed at the rear end of the rotating column 8.

[0037] The driving mechanism includes a second regular polygonal column 74 which is slidably inserted into the second regular polygonal groove 81. The rear end of the second regular polygonal column 74 is fixedly connected to a circular block 73. The front side of the circular block 73 is fixedly connected to a plurality of rotating hemispherical blocks 75 in a ring array. The rear side of the circular block 73 is fixedly connected to the front end of the connecting shaft 7.

[0038] The spherical surface of the rotating hemispherical block 75 contacts the rear side of the circular bracket 5, and the spherical surface of the transmission hemispherical block 54 contacts the front side of the circular block 73. Multiple transmission hemispherical blocks 54 and multiple rotating hemispherical blocks 75 are alternately distributed.

[0039] The circular block 73 is driven to rotate through the connecting shaft 7 , and the circular block 73 drives the multiple rotating hemispherical blocks 75 and the second regular polygonal column 74 to rotate, and the second regular polygonal column 74 drives the rotating column 8 to rotate along the circular groove 52 .

[0040] Working principle: When working, the motor shaft 11 of the motor body 1 drives the impeller seat 4 to rotate, and the impeller seat 4 drives the raised cylinder 41 and the impeller plate 45 to rotate synchronously. At this time, the liquid flows into the inner cavity of the connecting pipe 3 along the liquid inlet end 31, and the liquid is filtered through the filter mesh 53 to filter out impurities in the liquid. The filtered liquid flows into the shell 2 along the inner cavity of the connecting pipe 3, and then the impeller plate 45 rotates to transport the liquid through the liquid outlet pipe 22.

[0041] When the raised cylinder 41 rotates, it drives the first regular polygonal column 72 to rotate synchronously, and the first regular polygonal column 72 drives the connecting shaft 7 and the inducer wheel 71 to rotate synchronously. The inducer wheel 71 is set to drain the liquid so that the liquid can flow in a spiral, thereby allowing the liquid to be evenly mixed with the gas.

[0042] When the connecting shaft 7 rotates, it drives the circular block 73 to rotate, and the circular block 73 drives multiple rotating hemispherical blocks 75 and the second regular polygonal column 74 to rotate. When the second regular polygonal column 74 rotates, it drives the rotating column 8 to rotate along the circular groove 52. When the rotating column 8 rotates, it drives two cleaning brushes 83 to rotate along the front side of the filter screen 53. The impurities filtered out from the front side of the filter screen 53 are cleaned by the cleaning brushes 83.

[0043] When the rotating hemispherical block 75 rotates and approaches the transmission hemispherical block 54, the spherical surface of the rotating hemispherical block 75 contacts the spherical surface of the transmission hemispherical block 54. At this time, the rotating hemispherical block 75 continues to rotate, and the spherical surface of the rotating hemispherical block 75 slides along the spherical surface of the transmission hemispherical block 54 until the front end of the rotating hemispherical block 75 contacts the rear end of the transmission hemispherical block 54. At this time, the rotating hemispherical block 75 pushes the transmission hemispherical block 54 to move forward, and the transmission hemispherical block 54 pushes the circular bracket 5 to move forward.

[0044] The circular bracket 5 drives the filter screen 53 and the slider 55 to move forward. At this time, the slider 55 squeezes the reset spring piece 56. When the rotating hemispherical block 75 is separated from the transmission hemispherical block 54, the slider 55 slides backward under the elastic force of the reset spring piece 56, and the slider 55 drives the circular bracket 5 to slide backward, and so on. Therefore, the circular bracket 5 can reciprocate back and forth and shake the filter screen 53 back and forth through the circular bracket 5. The filter screen 53 that shakes back and forth can not only separate it from impurities, but also the filter screen 53 can mix gas and liquid well by shaking back and forth, so as to avoid a certain section of liquid with a large gas content. When the circular bracket 5 shakes back and forth, it drives the rotating column 8 to slide back and forth along the second regular polygonal column 74. The circular bracket 5 drives the cleaning mechanism to shake back and forth synchronously. At the same time, the second regular polygonal column 74 can drive the rotating column 8 to rotate synchronously, so that the cleaning brush 83 in the cleaning mechanism can continuously clean the filter screen 53. Although the flowing liquid will continue to drive impurities to move onto the filter screen 53, through the cooperation of the set driving mechanism and the cleaning mechanism, the impurities can be moved to the side of the circular bracket 5 to prevent the impurities from clogging the filter screen 53 and ensure the smooth flow of the liquid.

[0045] The circular bracket 5 moves forward and backward to push the baffle 6 to expand and contract. At this time, the inner side of the baffle 6 bulges inward and contracts, and this reciprocates, thereby guiding the liquid in multiple directions, thereby making the liquid and gas mix well.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gas-liquid two-phase pump capable of reducing gas content, comprising a motor body (1), characterized in that: A motor shaft (11) is rotatably mounted in the motor body (1), a housing (2) is mounted at the front end of the motor body (1), a sealing rear cover (21) is fixedly mounted on the rear side of the housing (2), the sealing rear cover (21) is fixedly connected to the front end of the motor body (1), one end of the motor shaft (11) passes through the sealing rear cover (21) and extends into the housing (2), a liquid outlet pipe (22) is fixedly plugged into the upper end of the housing (2), a connecting pipe (3) is fixedly connected to the front end of the housing (2), a liquid inlet end (31) is integrally formed at the front end of the connecting pipe (3), an air guide pipe (34) is fixedly plugged into the upper end of the connecting pipe (3), an impeller seat (4) is rotatably mounted in the inner cavity of the housing (2), a protruding cylinder (41) is integrally formed on the front side of the impeller seat (4), a plurality of impeller plates (45) are fixedly connected to the front side of the impeller seat (4) in the form of a ring array, and the motor shaft (11) is connected to the impeller seat (4); A filtering mechanism is slidably mounted in the inner cavity of the communicating pipe (3) forward and backward, a connecting shaft (7) is mounted at the front end of the raised cylinder (41), an inducer wheel (71) arranged in a spiral shape is fixedly sleeved on the connecting shaft (7), a driving mechanism is mounted at the front end of the connecting shaft (7), and a cleaning mechanism is mounted on the filtering mechanism.

2. A gas-liquid two-phase pump capable of reducing gas content according to claim 1, characterized in that: A flow-guiding curved surface (32) is provided at the connection between the inner cavity of the connecting pipe (3) and the inner cavity of the liquid inlet end (31); a circular hole matching the inner cavity of the connecting pipe (3) is provided through the front side of the shell (2); and the inner cavity of the connecting pipe (3) is connected to the inner cavity of the shell (2) via the circular hole.

3. A gas-liquid two-phase pump capable of reducing gas content according to claim 1, characterized in that: One end of the motor shaft (11) located in the housing (2) is fixedly sleeved with a circular butt joint (12); a clamping block is protruding from the side of the circular butt joint (12); a rear side of the impeller seat (4) is recessed forward and provided with a circular butt joint groove (42); a clamping groove (43) is provided on the side of the circular butt joint (42); the circular butt joint (12) is plugged into the circular butt joint groove (42); and the clamping block on the side of the circular butt joint (12) is clamped into the clamping groove (43).

4. A gas-liquid two-phase pump capable of reducing gas content according to claim 1, characterized in that: The inner cavity of the connecting pipe (3) is provided with sliding grooves (33) symmetrically in the upper and lower parts. The filtering mechanism comprises a circular bracket (5) slidably mounted in the inner cavity of the connecting pipe (3) in the front and rear parts. The side surface of the circular bracket (5) is provided with a plurality of fan-shaped flow grooves (51) in an annular array. A circular groove (52) is provided in the center of the side surface of the circular bracket (5). A filtering screen (53) is fixedly mounted on the front side of the circular bracket (5). A plurality of transmission hemispherical blocks (54) are fixedly connected in an annular array on the rear side surface of the circular bracket (5). A sliding block (55) is fixedly connected to the side surface of the circular bracket (5) in the upper and lower parts. A reset spring (56) is fixedly mounted on the front side surface of the sliding block (55). The cleaning mechanism is mounted on the circular bracket (5).

5. A gas-liquid two-phase pump capable of reducing gas content according to claim 4, characterized in that: The sliding block (55) is connected to the sliding groove (33) in a forward and backward sliding manner, and one end of the reset spring sheet (56) abuts against the front side of the sliding groove (33).

6. A gas-liquid two-phase pump capable of reducing gas content according to claim 4, characterized in that: A baffle (6) is symmetrically mounted on the front side of the circular bracket (5), an arc-shaped retaining strip (61) is fixedly mounted on the front end of the baffle (6), the arc-shaped retaining strip (61) is fixedly connected to the inner side wall of the connecting pipe (3), and the baffle (6) is a completely corrugated plate.

7. A gas-liquid two-phase pump capable of reducing gas content according to claim 1, characterized in that: The front end of the raised cylinder (41) is recessed backwards to form a first regular polygonal groove (44); the rear end of the connecting shaft (7) is fixedly connected to a first regular polygonal column (72); the first regular polygonal column (72) is plugged into the first regular polygonal groove (44); the rear end of the connecting shaft (7) is fixedly sleeved with a connecting ring; the connecting ring is connected to the front end of the raised cylinder (41) via bolts.

8. The gas-liquid two-phase pump capable of reducing gas content according to claim 4, characterized in that: The cleaning mechanism comprises a rotating column (8) inserted into the circular groove (52), a cleaning brush (83) is symmetrically fixedly connected to the front end of the rotating column (8), the brush end of the cleaning brush (83) is in contact with the filter screen (53), and two limiting rings (82) are fixedly sleeved on the rear end of the rotating column (8), the two limiting rings (82) are symmetrically distributed on the front and rear sides of the circular bracket (5), and the two limiting rings (82) are both in rotational contact with the circular bracket (5), and a second regular polygonal groove (81) is opened through the front end of the rotating column (8) and is arranged backward, and the driving mechanism is installed at the rear end of the rotating column (8).

9. A gas-liquid two-phase pump capable of reducing gas content according to claim 8, characterized in that: The driving mechanism comprises a second regular polygonal column (74) which is slidably inserted into a second regular polygonal groove (81) in a forward and backward manner; a circular block (73) is fixedly connected to the rear end of the second regular polygonal column (74); a plurality of rotating hemispherical blocks (75) are fixedly connected to the front side of the circular block (73) in a ring array; and the rear side of the circular block (73) is fixedly connected to the front end of the connecting shaft (7).

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