CN220059916U

CN220059916U - Multi-vane wheel type jet pump

Info

Publication number: CN220059916U
Application number: CN202320724686.3U
Authority: CN
Inventors: 陈江枫
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-04-04
Filing date: 2023-04-04
Publication date: 2023-11-21
Anticipated expiration: 2033-04-04

Abstract

The utility model belongs to the technical field of water pumps and discloses a multi-impeller type jet pump which comprises a motor, a large connection and a pump body, wherein the large connection is arranged on the front wall surface of the motor, the pump body is arranged on the front wall surface of the large connection, the motor is connected with a motor shaft, the outer wall surface of the motor shaft connected with the motor is sleeved with a guide disc structure, the outer wall surface of the motor shaft connected with the motor is sleeved with a multi-centrifugal impeller structure, and the inner wall surface of the pump body is provided with a water channel structure.

Description

Multi-vane wheel type jet pump

Technical Field

The utility model belongs to the technical field of water pumps, and particularly relates to a multi-impeller type jet pump.

Background

A water pump is a machine that delivers or pressurizes a liquid. It transmits mechanical energy or other external energy of prime mover to liquid to increase energy of liquid, and is mainly used for conveying liquid including water, oil, acid-alkali liquor, emulsion, suspension emulsion and liquid metal.

People cannot leave water in daily life, the improvement of the living conditions of people is accompanied with the shortage of water sources, the suction lift and the lift height of the conventional water pump cannot be used for deep well water taking and high-level water supply at present, when the water supply height exceeds 50M, a plurality of water pumps are required to be used for delivering or using a high-power water pump, and the cost is high, the construction is complex and the energy consumption is high, so that a multi-impeller type jet pump is needed to solve the problems.

Disclosure of Invention

The utility model aims to provide a multi-impeller type jet pump, which aims to solve the problems that the suction lift and the lift height of the conventional water pump in the background art cannot be used for deep well water taking and high-level water supply, and when the water supply height exceeds 50M, a plurality of water pumps are required to be used for delivering or using a high-power water pump, so that the cost is high, the construction is complex and the energy consumption is high.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a multi-impeller type jet pump, includes motor, big connection and the pump body, big connection is installed in the front wall of motor, the front wall at big connection is installed to the pump body, the motor is connected with the motor shaft, motor shaft outer wall cover that the motor is connected is equipped with the water conservancy diversion dish structure, motor shaft outer wall cover that the motor is connected is equipped with many centrifugal impeller structures, the water course structure is installed to the internal face of the pump body.

Preferably, the baffle structure includes: the device comprises a mechanical sealing piece, a primary flow guide disc, a secondary flow guide disc and a mixing cavity; the mechanical sealing piece is sleeved on a motor shaft connected with the motor, the primary flow guide disc is arranged in the pump body, the secondary flow guide disc is arranged in the pump body, and the mixing cavity is arranged on the front end face of the primary flow guide disc.

Preferably, the multi-centrifugal impeller structure comprises: a primary centrifugal impeller; the primary centrifugal impeller is arranged in the primary guide disc, and the secondary centrifugal impeller is arranged in the secondary guide disc.

Preferably, the waterway structure includes: a high-pressure spray water channel, an anti-frost crack water discharge screw hole, a high-pressure spray nozzle, a negative-pressure water channel, a water inlet connector and a negative-pressure high-pressure mixing pipe; the high-pressure injection water channel is arranged on the front end face of the pump body, the frost crack prevention water drain screw hole is arranged on the front end face of the pump body, the high-pressure injection nozzle is connected to the rear end face of the high-pressure injection water channel, the negative-pressure water channel is connected to the rear end face of the water inlet connector, and the high-pressure mixing pipe is connected to the rear end face of the negative-pressure water channel.

Preferably, a pump cavity is formed in the pump body.

Preferably, the outer wall surface of the pump body is respectively connected with a water filling port and a water outlet port.

Preferably, the outer circles of the primary flow guide disc and the secondary flow guide disc are provided with a water channel for high-pressure backflow into the pump cavity.

Preferably, a rubber O-shaped sealing ring is arranged at the joint of the large connection and the pump body 2.

Compared with the prior art, the utility model has the beneficial effects that: the utility model relates to a multi-impeller type jet pump.

The utility model achieves the purpose of increasing suction and pressurization under the action of the multi-impeller working and the injection nozzle and the negative high-pressure mixing pipe, solves the problems of suction lift and lift height, and has the advantages of saving energy by about one third under the conditions that the vertical height of the suction lift exceeds 9M, the height of the lift exceeds 75M and the water delivery is at the same height, along with simple structure, low energy consumption, low manufacturing cost, convenient maintenance and the like.

Drawings

Fig. 1 is a partial cross-sectional view of the present utility model.

In the figure: 1. a motor; 2. a pump body; 3. frost crack prevention waterproof screw holes; 4. high-pressure jet water channel; 5. a spray nozzle; 6. negative pressure water channel; 7. a water inlet port; 8. a negative high pressure mixing tube; 9. a pump chamber; 10. a water filling port; 11. a water outlet interface; 12. a mixing chamber; 13. a primary deflector disc; 14. a primary centrifugal impeller; 15. a secondary baffle; 16. a secondary centrifugal impeller; 17. a mechanical seal; 18. large connections.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1, the present utility model provides a technical solution:

embodiment 1, please refer to fig. 1, a multi-impeller jet pump, including motor 1, big connection 18 and pump body 2, big connection 18 is installed at the front wall of motor 1, and pump body 2 is installed at the front wall of big connection 18, and motor 1 is connected with the motor shaft, and the motor shaft outer wall cover that motor 1 connects is equipped with the water conservancy diversion dish structure, and the motor shaft outer wall cover that motor 1 connects is equipped with many centrifugal impeller structures, and water course structure is installed to the inner wall of pump body 2.

The baffle structure includes: a mechanical seal 17, a primary diaphragm 13, a secondary diaphragm 15, and a mixing chamber 12; the mechanical sealing element 17 is sleeved on a motor shaft connected with the motor 1, the primary flow guide disk 13 is arranged inside the pump body 2, the secondary flow guide disk 15 is arranged inside the pump body 2, and the mixing cavity 12 is arranged on the front end face of the primary flow guide disk 13.

The multiple centrifugal impeller configuration includes a primary centrifugal impeller 14 and a secondary centrifugal impeller 16; a primary centrifugal impeller 14 is mounted in the primary diaphragm 13 and a secondary centrifugal impeller 16 is mounted in the secondary diaphragm 15.

The water course structure includes: the high-pressure spray water channel 4, an anti-frost crack water discharge screw hole 3, a high-pressure spray nozzle 5, a negative pressure water channel 6, a water inlet joint 7 and a negative high-pressure mixing pipe 8; the high-pressure injection water channel 4 is arranged on the front end face of the pump body 2, the frost crack prevention water drain screw hole 3 is arranged on the front end face of the pump body 2, the high-pressure injection nozzle 5 is connected on the rear end face of the high-pressure injection water channel 4, the negative-pressure water channel 6 is connected on the rear end face of the water inlet connector 7, and the high-pressure mixing pipe 8 is connected on the rear end face of the negative-pressure water channel 6.

The pump cavity 9 has been seted up to the inside of the pump body 2, and the outer wall of the pump body 2 is connected with water filling port 10 and water outlet 11 respectively, and the water course in the pump cavity 9 has been designed to the excircle of primary water conservancy diversion dish 13 and secondary water conservancy diversion dish 15 to high pressure backward flow, and big connection 18 is equipped with rubber O type sealing washer with the pump body 2 junction.

In this embodiment, the large connection 18 is installed on the end of the motor 1, the mechanical seal 17 is installed on the shaft of the motor 1, the secondary centrifugal impeller 16 is installed on the shaft of the motor 1, the secondary flow guiding disk 15 is installed afterwards, the primary centrifugal impeller 14 is installed afterwards, the primary flow guiding disk 13 is installed again, the negative high pressure mixing pipe 8 is installed on the mixing cavity 12, the injection nozzle 5 is installed on the high pressure injection water channel 4, and then the pump body 2 is installed. The water filling port 10 is used in the pump cavity 9, and is used when filling working residual water before working in the absence of water, and the frost crack prevention waterproof screw hole 3 is used for preventing the pump body 2 from being frozen and cracked at low temperature and is used for discharging residual water. When the water pump is used again, the screw plug is screwed on, the injection nozzle 5 has the function of injecting water of the negative pressure water channel 6 into the negative high pressure mixing pipe 8 for pressurizing through the high pressure injection water channel 4 and the injection nozzle 5 by utilizing the water pressure in the pump body 2, the water pump is equal to the water pump in relay work, the water outlet port 11 is used for connecting a water outlet pipe, and the water inlet port 7 is used for connecting a water inlet pipe.

Specifically, when the water filling port 10 is filled with water into the pump cavity 9 before use, a screw plug is screwed after the water filling port is filled, the primary centrifugal impeller 14 and the secondary centrifugal impeller 16 simultaneously rotate when the motor 1 starts to operate, and the rotating impellers throw the water in the impellers into the flow guiding disc under the action of a centrifugal principle. At the same time, a vacuum suction force is formed in the impeller cavity, the suction force sucks water in the negative pressure water channel 6 through the negative high pressure mixing pipe 8, the primary centrifugal impeller 14 sends the sucked water into the secondary centrifugal impeller 16 through the primary guide disc 13, the secondary centrifugal impeller 16 sends the water into the pump cavity 9, and the water in the pump cavity 9 is mixed in the mixing cavity 12 through the injection nozzle 5 together with the water in the negative pressure water channel 6 in a sucking way in the negative high pressure mixing pipe 8, and then sucked into the centrifugal impeller. The principle is that the purpose of increasing suction and pressurization is achieved by the multi-impeller work and the action of the injection nozzle 5 and the negative high pressure mixing pipe 8.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The utility model provides a multi-impeller type jet pump, includes motor (1), big connection (18) and pump body (2), its characterized in that, big connection (18) are installed in the front wall of motor (1), pump body (2) are installed in the front wall of big connection (18), motor (1) are connected with the motor shaft, motor shaft outer wall cover that motor (1) are connected is equipped with the water conservancy diversion dish structure, motor shaft outer wall cover that motor (1) are connected is equipped with many centrifugal impeller structures, water course structure is installed to the inner wall of pump body (2);

the waterway structure includes: the high-pressure spray water channel (4), an anti-frost crack water discharge screw hole (3), a high-pressure spray nozzle (5), a negative pressure water channel (6), a water inlet interface (7) and a negative high-pressure mixing pipe (8);

the high-pressure injection water channel (4) is arranged on the front end face of the pump body (2), the frost crack prevention water drain screw hole (3) is arranged on the front end face of the pump body (2), the high-pressure injection nozzle (5) is connected to the rear end face of the high-pressure injection water channel (4), the negative-pressure water channel (6) is connected to the rear end face of the water inlet interface (7), and the high-pressure mixing pipe (8) is connected to the rear end face of the negative-pressure water channel (6);

a pump cavity (9) is formed in the pump body (2).

2. The multi-lobe jet pump of claim 1 wherein the diaphragm structure comprises: a mechanical seal (17), a primary baffle (13), a secondary baffle (15) and a mixing chamber (12);

the mechanical sealing piece (17) is sleeved on a motor shaft connected with the motor (1), the primary guide disc (13) is installed inside the pump body (2), the secondary guide disc (15) is installed inside the pump body (2), and the mixing cavity (12) is installed on the front end face of the primary guide disc (13).

3. The multi-lobe jet pump of claim 2 wherein the multi-centrifugal impeller structure comprises: the multi-centrifugal impeller structure includes: a primary centrifugal impeller (14) and a secondary centrifugal impeller (16);

the primary centrifugal impeller (14) is arranged in the primary guide disc (13), and the secondary centrifugal impeller (16) is arranged in the secondary guide disc (15).

4. The multi-impeller type jet pump according to claim 1, wherein the outer wall surface of the pump body (2) is respectively connected with a water filling port (10) and a water outlet port (11).

5. A multi-vane ejector pump according to claim 2, characterized in that the outer circles of the primary and secondary diaphragms (13, 15) are provided with a water channel for high-pressure return flow into the pump chamber (9).

6. A multi-lobe jet pump according to claim 1, characterised in that the large connection (18) is provided with a rubber O-ring at the junction with the pump body 2.