A gas-liquid separation device for a self-priming pump

Abstract

The present invention provides a gas-liquid separation device for a self-priming pump, comprising a pump body, in which a water inlet channel, a water outlet channel and an impeller chamber are arranged; the water inlet channel and the water outlet channel are respectively connected to the impeller chamber; a partition, a connecting rod and a telescopic mechanism are arranged in the water outlet channel; one end of the connecting rod is rotatably connected to the telescopic mechanism, and the other end is rotatably connected to one end of the partition; a first guide column is arranged through the other end of the partition, and the two ends of the first guide column protrude from the two side surfaces of the partition respectively; two parallel first guide grooves are arranged in the water outlet channel; the two ends of the first guide column are respectively arranged in a first guide groove; a second guide groove is arranged in the middle of the partition, and a second guide column is fixedly arranged in the water outlet channel, and the second guide column is arranged in the second guide groove. The gas-liquid separation device for a self-priming pump of the present invention; in the self-priming stage, the liquid is blocked by the partition so that the liquid falls back to the impeller chamber; in the use stage, the partition moves to a vertical position without affecting the water outlet efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of gas-liquid separation devices, and in particular to a gas-liquid separation device of a self-priming pump. Background Art

[0002] Existing self-priming pumps generally have two water outlets, namely a vertical water outlet and a parallel water outlet. In order to prevent the liquid in the impeller chamber from being thrown out directly from the parallel water outlet by the impeller during use, the parallel water outlet needs to be closed and only the vertical water outlet is used. When the gas in the pump body is discharged and the liquid fills the pump body, only the vertical water outlet works, which will seriously affect the working efficiency of the self-priming pump. At the same time, the closing of the parallel water outlet not only reduces the working efficiency of the self-priming pump, but also reduces the installation conditions of the self-priming pump.

[0003] The existing patent CN201820198460.3 is a gas-liquid separation device of a self-priming pump, in which a motor drives the impeller in the pump body to rotate, and the liquid stored in the impeller chamber is thrown out into the water outlet channel through the rotation of the impeller, thereby sucking the liquid at the pump water inlet and the gas in the water inlet channel into the impeller chamber, and throwing them into the water outlet channel through the rotation of the impeller, and the liquid naturally falls back into the impeller chamber due to gravity after being blocked by the gas-liquid separation partition, and the gas enters the exhaust area and is discharged from the pump body through the vertical water outlet and the parallel water outlet, and the cycle repeats until the liquid outside the pump water inlet is sucked into the pump body, the air in the pump body becomes less and less, and the liquid becomes more and more, until the liquid fills the pump body and is discharged through the vertical water outlet and the parallel water outlet, thereby completing the self-priming function; however, an internal water outlet is formed between the gas-liquid separator and the water outlet channel, which limits the water outlet efficiency during the use stage. Summary of the invention

[0004] One of the purposes of the present invention is to provide a gas-liquid separation device for a self-priming pump; in the self-priming stage, the liquid is blocked by a partition so that the liquid falls back into the impeller chamber; in the use stage, the partition is moved to a vertical position without affecting the water discharge efficiency.

[0005] An embodiment of the present invention provides a gas-liquid separation device for a self-priming pump, comprising a pump body, wherein a water inlet channel, a water outlet channel and an impeller chamber are arranged in the pump body; the water inlet channel and the water outlet channel are respectively communicated with the impeller chamber; an impeller is arranged in the impeller chamber; a water inlet, a vertical water outlet and a horizontal water outlet are arranged on the outside of the pump body; the water inlet is communicated with the water inlet channel; the vertical water outlet and the horizontal water outlet are respectively communicated with the water outlet channel;

[0006] A partition, a connecting rod and a telescopic mechanism are arranged in the water outlet channel; the telescopic mechanism is fixedly connected to the pump body; one end of the connecting rod is rotatably connected to the telescopic mechanism, and the other end is rotatably connected to one end of the partition; a first guide column is arranged through the other end of the partition, and the two ends of the first guide column respectively protrude from the two side surfaces of the partition; two parallel first guide grooves are arranged in the water outlet channel; the two ends of the first guide column are respectively arranged in one of the first guide grooves; a second guide groove is arranged in the middle of the partition, a second guide column is fixedly arranged in the water outlet channel, and the second guide column is arranged in the second guide groove.

[0007] Preferably, the first guide groove is arc-shaped.

[0008] Preferably, the width of the partition is adapted to the width of the water outlet channel.

[0009] Preferably, the shortest distance from the first guide groove to the inner wall of the water outlet channel is equal to the distance from the first guide column to the end of the partition close to the first guide column.

[0010] Preferably, when the position of the first guide column in the first guide groove is the inner wall of the first guide groove closest to the water outlet channel, the partition blocks the vertical water outlet in the vertical direction, so that water coming out of the impeller chamber cannot directly enter the vertical water outlet.

[0011] Preferably, the second guide column is located directly below the telescopic mechanism and in the telescopic direction of the telescopic mechanism; the telescopic mechanism contracts and drives the partition to rotate through the connecting rod; the partition moves to a vertical position under the action of the first guide groove and the first guide column, the second guide groove and the second guide column, so that water coming out of the impeller chamber can directly enter the vertical water outlet.

[0012] Preferably, the telescopic mechanism comprises:

[0013] The shell is fixedly connected to the pump body; a through cavity is provided at both ends of the shell;

[0014] A coil is disposed in the through cavity;

[0015] The telescopic body is arranged in the through cavity and in the coil; the two ends of the through cavity are sealed and connected to the telescopic body; one end of the telescopic body is T-shaped, and the other end is rotatably connected to the connecting rod;

[0016] The spring is sleeved on one end of the T-shaped telescopic body and is located between the telescopic body and the shell.

[0017] Preferably, the gas-liquid separator device of the self-priming pump further comprises:

[0018] A liquid level sensor is vertically arranged in the water outlet channel;

[0019] The controller is arranged in the pump body and is electrically connected to the liquid level sensor and the coil respectively; the controller is used to control the on and off of the current in the coil.

[0020] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description, claims, and drawings.

[0021] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0023] Figure 1 A schematic diagram of a gas-liquid separation device of a self-priming pump in an embodiment of the present invention;

[0024] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0025] Figure 3 is a schematic diagram of a telescopic mechanism in an embodiment of the present invention;

[0026] Figure 4 Schematic diagram of a gas-liquid separation device of another self-priming pump in an embodiment of the present invention.

[0027] In the figure:

[0028] 1. Pump body; 2. Water inlet channel; 3. Water outlet channel; 4. Impeller chamber; 5. Impeller; 6. Water inlet; 7. Vertical water outlet; 8. Horizontal water outlet; 9. Telescopic mechanism; 10. Connecting rod; 11. Partition; 12. First guide groove; 13. First guide column; 14. Second guide groove; 15. Second guide column; 16. Controller; 17. Liquid level sensor; 9-1. Housing; 9-2. Coil; 9-3. Telescopic body; 9-4. Spring. DETAILED DESCRIPTION

[0029] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0030] The embodiment of the present invention provides a gas-liquid separation device for a self-priming pump, such as Figure 1 and Figure 2As shown, it includes a pump body 1, in which a water inlet channel 2, a water outlet channel 3 and an impeller chamber 4 are arranged; the water inlet channel 2 and the water outlet channel 3 are respectively communicated with the impeller chamber 4; an impeller 5 is arranged in the impeller chamber 4; a water inlet 6, a vertical water outlet 7 and a horizontal water outlet 8 are arranged on the outside of the pump body 1; the water inlet 6 is communicated with the water inlet channel 2; the vertical water outlet 7 and the horizontal water outlet 8 are respectively communicated with the water outlet channel 3;

[0031] A partition 11, a connecting rod 10, and a telescopic mechanism 9 are arranged in the water outlet channel 3; the telescopic mechanism 9 is fixedly connected to the pump body 1; one end of the connecting rod 10 is rotatably connected to the telescopic mechanism 9, and the other end is rotatably connected to one end of the partition 11; a first guide column 13 is arranged through the other end of the partition 11, and the two ends of the first guide column 13 protrude from the two side surfaces of the partition 11 respectively; two parallel first guide grooves 12 are arranged in the water outlet channel 3; the two ends of the first guide column 13 are respectively arranged in one first guide groove 12; a second guide groove 14 is arranged in the middle of the partition 11, and a second guide column 15 is fixedly arranged in the water outlet channel 3, and the second guide column 15 is arranged in the second guide groove 14. The first guide groove 12 is arc-shaped. The width of the partition 11 is adapted to the width of the water outlet channel 3. The shortest distance from the first guide groove 12 to the inner wall of the water outlet channel 3 is equal to the distance from the first guide column 13 to the end of the partition 11 close to the first guide column 13. When the first guide column 13 is located in the first guide groove 12 at the inner wall of the first guide groove 12 closest to the water outlet channel 3, the vertical direction of the partition 11 blocks the vertical water outlet 7, so that the water coming out of the impeller chamber 4 cannot directly enter the vertical water outlet 7. The second guide column 15 is located directly below the telescopic mechanism 9 and in the telescopic direction of the telescopic mechanism 9; the telescopic mechanism 9 contracts and drives the partition 11 to rotate through the connecting rod 10; the partition 11 moves to a vertical position under the action of the first guide groove 12 and the first guide column 13, the second guide groove 14 and the second guide column 15, so that the water coming out of the impeller chamber 4 can directly enter the vertical water outlet 7.

[0032] The working principle and beneficial effects of the above technical solution are:

[0033] Because the partition 11 is restricted by the first guide column 13 and the second guide column 15, the telescopic mechanism 9 extends, and the partition 11 rotates in the water outlet channel 3, and finally blocks the vertical water outlet 7 and the horizontal water outlet 8. At this time, the angle between the position of the partition 11 and the horizontal position is about negative 15 degrees. When the impeller 5 in the pump body 1 rotates, the liquid stored in the impeller chamber 4 is thrown into the water outlet channel 3 through the rotation of the impeller 5, so that the liquid at the water inlet 6 and the gas in the water inlet channel 2 are sucked into the impeller chamber 4 and thrown into the water outlet channel 3 through the rotation of the impeller 5. After the liquid is blocked by the air partition 11, it naturally falls back into the impeller chamber 4 due to gravity, and the gas enters the upper part of the water outlet channel 3 and is discharged from the pump body 1 through the vertical water outlet 7 and the horizontal water outlet 8. This cycle repeats until the liquid outside the water inlet 6 is The liquid is sucked into the pump body 1, and the air in the pump body 1 becomes less and less, while the liquid becomes more and more, until the liquid fills the pump body 1 and is discharged through the vertical water outlet 7 and the horizontal water outlet 8, thereby completing the self-priming function; but after the liquid fills the pump body 1, the telescopic mechanism 9 contracts, driving the partition 11 to rotate to a vertical position, so that the partition 11 is moved away from the horizontal water outlet 8 and the vertical water outlet 7, ensuring that the water outlet channel 3 is unobstructed to the horizontal water outlet 8 and the vertical water outlet 7, thereby not affecting the water outlet efficiency of the self-priming pump.

[0034] The gas-liquid separation device of the self-priming pump of the present invention; in the self-priming stage, the liquid is blocked by the partition 11 so that the liquid falls back into the impeller chamber 4; in the use stage, the partition 11 moves to a vertical position without affecting the water discharge efficiency.

[0035] In one embodiment, Figure 3 As shown, the telescopic mechanism 9 includes:

[0036] The housing 9-1 is fixedly connected to the pump body 1; through cavities are provided at both ends of the housing 9-1;

[0037] Coil 9-2, arranged in the through cavity;

[0038] The telescopic body 9-3 is arranged in the through cavity and in the coil 9-2; the two ends of the through cavity are sealed and connected to the telescopic body 9-3; one end of the telescopic body 9-3 is T-shaped, and the other end is rotatably connected to the connecting rod 10;

[0039] The spring 9-4 is sleeved on one end of the T-shaped telescopic body 9-3 and is located between the telescopic body 9-3 and the housing 9-1.

[0040] The working principle and beneficial effects of the above technical solution are:

[0041] When the coil 9-2 is energized, a magnetic field is generated. The telescopic body 9-3 is made of iron and moves downward under the action of the magnetic field to complete the extension of the telescopic mechanism 9. When the current in the coil 9-2 is cut off, the magnetic field disappears, and the telescopic body 9-3 is reset under the action of the spring 9-4 to complete the contraction of the telescopic mechanism 9.

[0042] In one embodiment, Figure 4 As shown, the gas-liquid separator device of the self-priming pump also includes:

[0043] A liquid level sensor 17 is vertically arranged in the water outlet channel 3;

[0044] The controller 16 is disposed in the pump body 1 and is electrically connected to the liquid level sensor 17 and the coil 9 - 2 respectively; the controller 16 is used to control the on and off of the current in the coil 9 - 2.

[0045] The working principle and beneficial effects of the above technical solution are:

[0046] The controller 16 detects the liquid level in the water channel 3 through the liquid level sensor 17, thereby determining whether the pump body 1 is full of liquid. When the pump body 1 is full of liquid, the current in the coil 9-2 is disconnected, so that the partition 11 rotates to a vertical position.

[0047] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A gas-liquid separation device for a self-priming pump, comprising a pump body (1), wherein a water inlet channel (2), a water outlet channel (3) and an impeller chamber (4) are arranged in the pump body (1); the water inlet channel (2) and the water outlet channel (3) are respectively communicated with the impeller chamber (4); an impeller (5) is arranged in the impeller chamber (4); a water inlet (6), a vertical water outlet (7) and a horizontal water outlet (8) are arranged on the outside of the pump body (1); the water inlet (6) is communicated with the water inlet channel (2); the vertical water outlet (7) and the horizontal water outlet (8) are respectively communicated with the water outlet channel (3); characterized in that: A partition (11), a connecting rod (10), and a telescopic mechanism (9) are arranged in the water outlet channel (3); the telescopic mechanism (9) is fixedly connected to the pump body (1); one end of the connecting rod (10) is rotatably connected to the telescopic mechanism (9), and the other end is rotatably connected to one end of the partition (11); a first guide column (13) is arranged through the other end of the partition (11), and the two ends of the first guide column (13) respectively protrude from the two side surfaces of the partition (11); two parallel first guide grooves (12) are arranged in the water outlet channel (3); the two ends of the first guide column (13) are respectively arranged in one of the first guide grooves (12); a second guide groove (14) is arranged in the middle of the partition (11), and a second guide column (15) is fixedly arranged in the water outlet channel (3), and the second guide column (15) is arranged in the second guide groove (14); Wherein, the first guide groove (12) is arc-shaped; The width of the partition plate (11) is adapted to the width of the water outlet channel (3).

2. The gas-liquid separation device of the self-priming pump according to claim 1, characterized in that: The shortest distance from the first guide groove (12) to the inner wall of the water outlet channel (3) is equal to the distance from the first guide column (13) to the end of the partition plate (11) close to the first guide column (13).

3. The gas-liquid separation device of the self-priming pump according to claim 2, characterized in that: When the position of the first guide column (13) in the first guide groove (12) is such that the first guide groove (12) is closest to the inner wall of the water outlet channel (3), the partition plate (11) blocks the vertical water outlet (7) in the vertical direction, so that water coming out of the impeller chamber (4) cannot directly enter the vertical water outlet (7).

4. The gas-liquid separation device of the self-priming pump according to claim 1, characterized in that: The second guide column (15) is located directly below the telescopic mechanism (9) and in the telescopic direction of the telescopic mechanism (9); the telescopic mechanism (9) contracts to drive the partition (11) to rotate via the connecting rod (10); the partition (11) moves to a vertical position under the action of the first guide groove (12) and the first guide column (13), the second guide groove (14) and the second guide column (15), so that water coming out of the impeller chamber (4) can directly enter the vertical water outlet (7).

5. The gas-liquid separation device of the self-priming pump according to claim 1, characterized in that: The telescopic mechanism (9) comprises: A shell (9-1) is fixedly connected to the pump body (1); through cavities are provided at both ends of the shell (9-1); A coil (9-2) is arranged in the through cavity; A telescopic body (9-3) is disposed inside the through cavity and inside the coil (9-2); both ends of the through cavity are sealedly connected to the telescopic body (9-3); one end of the telescopic body (9-3) is T-shaped, and the other end is rotatably connected to the connecting rod (10); The spring (9-4) is sleeved on one end of the T-shape of the telescopic body (9-3) and is located between the telescopic body (9-3) and the housing (9-1).

6. The gas-liquid separation device of the self-priming pump according to claim 5, characterized in that: Also includes: A liquid level sensor (17) vertically arranged in the water outlet channel (3); A controller (16) is arranged in the pump body (1) and is electrically connected to the liquid level sensor (17) and the coil (9-2) respectively; the controller (16) is used to control the on and off of the current in the coil (9-2).

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