CN115434919A

CN115434919A - Self-priming pump

Info

Publication number: CN115434919A
Application number: CN202211220594.8A
Authority: CN
Inventors: 任兵; 常浩; 王师; 莫巧平; 沈忠夫; 孙涛; 胡杰; 宋巍巍; 张规化
Original assignee: Zhejiang Shimge Pump Co Ltd
Current assignee: Zhejiang Shimge Pump Co Ltd
Priority date: 2022-10-08
Filing date: 2022-10-08
Publication date: 2022-12-06
Anticipated expiration: 2042-10-08
Also published as: CN115434919B

Abstract

The utility model relates to a self priming pump relates to the technical field of water pump, which comprises a pump body, the pump body in be equipped with the pump chamber, the pump chamber in be equipped with air pressure adjusting device, the pump body on still be equipped with import and export, the import with the export all with the pump chamber be linked together, the import with the exit all be equipped with the check valve, the check valve of import department by external to pump chamber one-way switch on, the check valve of exit by pump chamber to external one-way switch on, air pressure adjusting device be used for making the pump chamber internal gas pressure periodicity reduce and increase. This application has the advantage that can anhydrous start.

Description

Self-priming pump

Technical Field

The application relates to the technical field of water pumps, in particular to a self-sucking pump.

Background

The self-priming pump has the advantages of compact structure, convenient operation, stable operation, high efficiency, long service life, stronger self-priming capability and the like, thereby being widely applied to the fields of petrochemical industry, agricultural irrigation, urban environmental protection and the like. In use, the self-priming pump started for the first time needs to be irrigated, so that the starting time is greatly prolonged, and the working efficiency of the self-priming pump is seriously restricted. If adopt the mode of external auxiliary pump with the gas outgoing in the self priming pump, not only can cause great noise, make whole unit transportation difficulty moreover, reduced holistic mobility to two supporting motors at least have increased energy resource consumption.

Disclosure of Invention

To the deficiencies that exist in the prior art, one of the objectives of the present application is to provide a self-priming pump that has the advantage of being able to be started without water.

The above object of the present application is achieved by the following technical solutions:

the utility model provides a self priming pump, includes the pump body, the pump body in be equipped with the pump chamber, the pump chamber in be equipped with air pressure adjusting device, the pump body on still be equipped with import and export, the import with the export all with the pump chamber be linked together, the import with the exit all be equipped with the check valve, the check valve of import department by external one-way switch on to the pump chamber, the check valve of exit by pump chamber one-way switch on to external, air pressure adjusting device be used for making the pump chamber internal gas pressure periodicity reduce and increase.

Through adopting above-mentioned technical scheme, in use, the import is linked together through pipeline and external water source, under pressure adjusting device's effect, the periodic reduction of atmospheric pressure in the pump chamber and increase, at this in-process, when the atmospheric pressure in the pump chamber reduces, the check valve of import department opens, gas in the pipeline can enter into in the pump chamber, external water source can enter into in the pipeline under the effect of atmospheric pressure, when the atmospheric pressure in the pump chamber increases, the check valve of import department closes, the check valve of exit is opened, gas in the pump chamber is discharged from the export, consequently, when the periodic reduction of atmospheric pressure in the pump chamber and increase, can realize the evacuation of gas and the suction to external liquid, thereby realize anhydrous start-up.

The present application may be further configured in a preferred example to: the air pressure adjusting device comprises a driving assembly and a compression piece, wherein the compression piece comprises a compression pipeline and a reciprocating piston, the outer surface of the reciprocating piston is attached to the inner surface of the compression pipeline, the compression pipeline is communicated with the pump cavity, and the driving assembly is used for driving the reciprocating piston to reciprocate along the axial direction of the compression pipeline.

Through adopting above-mentioned technical scheme, when using promptly, when reciprocating piston reciprocating motion, can realize carrying out the purpose of sucking to the gas in the pump chamber.

The present application may be further configured in a preferred example to: the driving assembly comprises a transmission rod and a driving piece, one end of the transmission rod is connected with the reciprocating piston, the other end of the transmission rod is connected with the driving piece, and the driving piece drives the transmission rod to move so as to drive the reciprocating piston to reciprocate.

By adopting the technical scheme, in use, the driving piece drives the transmission rod to move, and the purpose of driving the reciprocating piston to move is further achieved.

The present application may be further configured in a preferred example to: the driving part comprises a driving wheel and a driving rod, one end of the driving rod is fixedly connected with a rotating shaft of the driving wheel, the other end of the driving rod is hinged with the transmission rod, and the other end of the transmission rod is hinged with the reciprocating piston.

By adopting the technical scheme, when the driving wheel rotates, the driving rod can be driven to rotate, and the purpose of driving the transmission rod to reciprocate can be achieved because one end of the driving rod is hinged with the rotating shaft of the driving wheel and the other end of the driving rod is hinged with the transmission rod.

The application may be further configured in a preferred example to: the pump body is also provided with a gas-liquid separation chamber which is communicated with the outlet.

Through adopting above-mentioned technical scheme, in use promptly, gas-liquid mixture can enter into in the gas-liquid separation room, and then plays better gas-liquid separation effect.

The present application may be further configured in a preferred example to: and an air outlet pipe is arranged in the gas-liquid separation chamber, one end of the air outlet pipe extends out of the gas-liquid separation chamber, and the other end of the air outlet pipe is communicated with the gas-liquid separation chamber.

Through adopting above-mentioned technical scheme, when using, gas can be followed the outlet duct and discharged to reduce gas content.

The application may be further configured in a preferred example to: the gas-liquid separation chamber is also internally provided with an adsorption pad which is positioned below the gas outlet pipe.

Through adopting above-mentioned technical scheme, the existence of adsorption pad for at the initial stage of operation, liquid in the gas-liquid mixture can be adsorbed by the adsorption pad, and then can reduce from the intraductal exhaust gas of outlet pipe in, the content of liquid.

The present application may be further configured in a preferred example to: the gas-liquid separation indoor still be equipped with the centrifuging tube, the centrifuging tube one end with the export be linked together, the centrifuging tube be the heliciform winding on the outlet duct.

Through adopting above-mentioned technical scheme, in use promptly, under the effect of centrifugal force, the separation effect of liquid and gas is better.

The application may be further configured in a preferred example to: the tail end of the centrifugal tube is positioned below the air outlet pipe.

Through adopting above-mentioned technical scheme, in use for gas is changeed and is discharged from the outlet duct.

The present application may be further configured in a preferred example to: the air pressure adjusting device comprises an adjusting ring, the adjusting ring is connected with the inner wall of the pump cavity to form an installation cavity, the driving piece is installed in the installation cavity, the compression assemblies are at least two groups, one end of the compression pipeline is communicated with the pump cavity, and the other end of the compression pipeline is communicated with the installation cavity.

Through adopting above-mentioned technical scheme, when using, the existence of two sets of compression subassemblies can make the atmospheric pressure regulation effect in the pump chamber better.

Drawings

Fig. 1 is a schematic structural diagram of the present application.

Fig. 2 is a schematic structural diagram of the air pressure adjusting device of the present application.

Reference numerals: 1. a pump body; 11. a pump cavity; 12. an inlet; 13. an outlet; 14. a one-way valve; 2. an air pressure adjusting device; 21. a compression member; 211. compressing the pipeline; 212. a reciprocating piston; 22. a drive assembly; 221. a drive wheel; 222. a drive rod; 223. a transmission rod; 23. an adjusting ring; 24. a mounting cavity; 3. a flow passage is communicated; 4. a gas-liquid separation chamber; 41. an air outlet pipe; 42. centrifuging the tube; 43. an adsorption pad.

Detailed Description

The present application is described in further detail below with reference to the attached drawings.

Refer to fig. 1 and fig. 2, for the self priming pump that this application discloses, including the pump body 1, be equipped with pump chamber 11, import 12 and export 13 on the pump body 1, import 12 and export 13 all are linked together with pump chamber 11, and one-way valve 14 is all installed in

import

12 and 13 departments of export, and the one-way valve 14 of import 12 department is by external to pump chamber 11 one-way conduction, and the one-way valve 14 of 13 departments of export is by pump chamber 11 to external one-way conduction.

The pump cavity 11 is also provided with an air pressure adjusting device 2 used for periodically reducing and increasing the air pressure in the pump cavity 11, the air pressure adjusting device 2 comprises a driving assembly 22, an adjusting ring 23 and a compression piece 21, the adjusting ring 23 is positioned in the pump cavity 11 and connected with the inner wall of the pump cavity 11 to form a mounting cavity 24, and the mounting cavity 24 can be communicated with the outside through holes. The compression members 21 are provided in four sets and circumferentially disposed on the adjustment ring 23, and the driving assemblies 22 are provided in four sets and correspond to the four compression members 21 one by one.

The compressing member 21 includes a compressing pipe 211 and a reciprocating piston 212, the compressing pipe 211 and the adjusting ring 23 are fixedly connected and penetrate through the adjusting ring 23 to communicate the mounting chamber 24 with the pump chamber 11, and the reciprocating piston 212 is located in the compressing pipe 211 and is engaged with the inner wall of the compressing pipe 211 to form a sealing structure.

The driving assembly 22 includes a driving member and a transmission rod 223, the driving member includes a driving wheel 221 and a driving rod 222, a rotation shaft is fixedly connected to the driving wheel 221, one end of the driving rod 222 is fixedly connected to the rotation shaft of the driving wheel 221, and the other end is hinged to the transmission rod 223, in another embodiment, one end of the driving rod 222 can also be hinged to the driving wheel 221, and the other end is hinged to the driving rod 222. The other end of the transmission rod 223 is hinged to the reciprocating piston 212. In this embodiment, the driving wheels 221 are gears, the driving wheels 221 of the four sets of driving assemblies 22 are all located in the installation cavity 24 and are arranged in a rectangular shape, and the adjacent driving wheels 221 are engaged with each other. The rotating shaft of a driving wheel 221 is connected to an external motor. Referring to fig. 2, in the present application, the rotating shaft of the driving wheel 221 at the upper left corner is connected with an external motor and is driven to rotate by the external motor.

The pump body 1 is also provided with a gas-liquid separation chamber 4 and a communication flow passage 3, one end of the communication flow passage 3 is communicated with an outlet 13, and the other end is communicated with the gas-liquid separation chamber 4. An air outlet pipe 41 is arranged in the gas-liquid separation chamber 4, the lower end of the air outlet pipe 41 is positioned in the gas-liquid separation chamber 4, and the upper end of the air outlet pipe extends out of the gas-liquid separation chamber 4. A centrifugal tube 42 is further arranged in the gas-liquid separation chamber 4, the centrifugal tube 42 is spiral and wound on the gas outlet pipe 41, the head end of the centrifugal tube 42 is communicated with the communication flow passage 3, and the tail end of the centrifugal tube 42 is positioned below the gas outlet pipe 41. That is, the communication flow path 3 communicates with the gas-liquid separation chamber 4 through the centrifugal tube 42. An adsorption pad 43 is also arranged in the gas-liquid separation chamber 4, and the adsorption pad 43 is positioned below the tail end of the centrifugal tube 42. The absorbent pad 43 is made of cotton or other materials with water absorption property. The adsorption pad 43 is fixedly installed in the gas-liquid separation chamber 4.

The implementation principle of the embodiment is as follows: when the reciprocating piston 212 moves to one side close to the driving wheel 221, the pressure in the pump cavity 11 is reduced, at the moment, the air pressure in the pipeline connected with the inlet 12 is higher than the air pressure in the pump cavity 11, the check valve 14 at the inlet 12 is conducted under the action of the pressure, the air in the pipeline connected with the inlet 12 enters the pump cavity 11, the water at the water source enters the pipeline connected with the inlet 12, when the reciprocating piston 212 moves to the side far away from the driving wheel 221, the pressure in the pump cavity 11 increases and is greater than the pressure at the connection position of the outlet 13 and the outside, so that the check valve 14 at the outlet 13 is conducted, meanwhile, the check valve 14 at the inlet 12 is closed, and further, the gas in the pump cavity 11 is discharged from the outlet 13, so that in the process of reciprocating movement of the reciprocating piston 212, the gas in the pump cavity 11 and the gas in the pipeline communicated with the inlet 12 can be discharged, and the liquid in the outside water source is pumped into the pump cavity 11, in the process of pumping, there is a stage of mixing the gas and the liquid, in which the gas and the liquid can enter the communicating flow passage 3 through the check valve 14 at the outlet 13 and enter the centrifuge tube 42 through the communicating flow passage 3, and because the centrifuge tube 42 is spirally arranged, the liquid in the gas and liquid mixed liquid passing through the centrifuge tube 42 can be under the action of centrifugal force, because the centrifugal force that the liquid receives is greater than the gas, and then realize the separation of gas and liquid, and when liquid discharges from centrifuging tube 42, there is certain speed, when it contacts with adsorption pad 43, can be adsorbed by adsorption pad 43, thus reduce the liquid volume discharged from the blast pipe, when the external electrical machinery stops operating, the drive wheel 221 loses power, stop rotating, and then make the pressure of the inlet 12 place and the pressure in the pump cavity 11 balanced, the pressure of the outlet 13 place and the pressure in the pump cavity 11 balanced, the check valve 14 of the inlet 12 and outlet 13 place is in the closed state at this moment, the pump cavity 11 is full of liquid, therefore can reduce the injury that the water hammer causes when shutting down effectively, has lengthened the service life of the pump, when starting again, can enter the normal operating mode directly, has obviously raised the working efficiency.

The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A self-priming pump is characterized in that: including the pump body (1), the pump body (1) in be equipped with pump chamber (11), pump chamber (11) in be equipped with air pressure adjusting device (2), the pump body (1) on still be equipped with import (12) and export (13), import (12) with export (13) all with pump chamber (11) be linked together, import (12) with export (13) department all be equipped with check valve (14), check valve (14) of import (12) department by external to pump chamber (11) one-way conduction, check valve (14) of export (13) department by pump chamber (11) outside one-way conduction, air pressure adjusting device (2) be used for making pump chamber (11) internal gas pressure periodicity reduce and increase.

2. The self-primer pump of claim 1 wherein: the air pressure adjusting device (2) comprises a driving assembly (22) and a compression piece (21), wherein the compression piece (21) comprises a compression pipeline (211) and a reciprocating piston (212), the outer surface of the reciprocating piston (212) is attached to the inner surface of the compression pipeline (211), the compression pipeline (211) is communicated with the pump cavity (11), and the driving assembly (22) is used for driving the reciprocating piston (212) to reciprocate along the axial direction of the compression pipeline (211).

3. The self-primer pump of claim 2 wherein: the driving assembly (22) comprises a driving rod (223) and a driving piece, one end of the driving rod (223) is connected with the reciprocating piston (212), the other end of the driving rod is connected with the driving piece, and the driving piece drives the driving rod (223) to move so as to drive the reciprocating piston (212) to move in a reciprocating mode.

4. The self-primer pump of claim 3 wherein: the driving piece comprises a driving wheel (221) and a driving rod (222), one end of the driving rod (222) is fixedly connected with a rotating shaft of the driving wheel (221), the other end of the driving rod is hinged with the driving rod (223), and the other end of the driving rod (223) is hinged with the reciprocating piston (212).

5. The self-primer pump of claim 1 wherein: the pump body (1) is also provided with a gas-liquid separation chamber (4), and the gas-liquid separation chamber (4) is communicated with the outlet (13).

6. The self-primer pump of claim 5 wherein: an air outlet pipe (41) is arranged in the gas-liquid separation chamber (4), one end of the air outlet pipe (41) extends out of the gas-liquid separation chamber (4), and the other end of the air outlet pipe is communicated with the gas-liquid separation chamber (4).

7. The self-primer pump of claim 6 wherein: an adsorption pad (43) is further arranged in the gas-liquid separation chamber (4), and the adsorption pad (43) is positioned below the gas outlet pipe (41).

8. The self-primer pump of claim 6 wherein: the gas-liquid separation room (4) in still be equipped with centrifuging tube (42), centrifuging tube (42) one end with export (13) be linked together, centrifuging tube (42) be the heliciform winding on outlet duct (41).

9. The self-primer pump of claim 8 wherein: the tail end of the centrifugal tube (42) is positioned below the air outlet tube (41).

10. The self-primer pump of claim 4 wherein: the air pressure adjusting device (2) comprises an adjusting ring (23), the adjusting ring (23) is connected with the inner wall of the pump cavity (11) to form an installation cavity (24), the driving piece is installed in the installation cavity (24), the compression assemblies are at least two groups, one end of the compression pipeline (211) is communicated with the pump cavity (11), and the other end of the compression pipeline is communicated with the installation cavity (24).