CN214247820U

CN214247820U - Jet pump with inner flow guide structure

Info

Publication number: CN214247820U
Application number: CN202120120998.4U
Authority: CN
Inventors: 黄宇斌; 吴登昊
Original assignee: Taizhou Zhongji Intelligent Equipment Co ltd
Current assignee: Taizhou Zhongji Intelligent Equipment Co ltd
Priority date: 2021-01-18
Filing date: 2021-01-18
Publication date: 2021-09-21
Anticipated expiration: 2031-01-18

Abstract

The utility model relates to an injection pump with interior water conservancy diversion structure is equipped with sprayer, preceding whirlpool lid, annular drainage, impeller chamber and back whirlpool lid in the past after to in proper order in the pump body. The utility model discloses a design is: an inner flow guide part is arranged between the ejector and the front vortex cover; a connecting channel is arranged at the center of the inner flow guide piece, a partition plate is arranged in the connecting channel, and a plurality of spiral flow guide blades are arranged between the connecting channel and the outer wall of the inner flow guide piece; the spray pipe at the rear end of the sprayer is internally connected with the connecting channel of the inner flow guide piece; the impeller chamber is communicated with the spray pipe and the connecting channel. The utility model discloses an excellent effect is: the fluid ordered flow, fluid pressure fluctuation tends to be steady, and is less to the unordered impact of pump body inside, reduces the loss, and efficiency is higher, and the noise is lower, and mechanical parts life-span is longer.

Description

Jet pump with inner flow guide structure

Technical Field

The utility model relates to a mechanical structure of pump specifically is an inside jet pump that is equipped with water conservancy diversion structure.

Background

The ejector pump is applied to various fields by virtue of the characteristic of high lift, the principle is that an ejector is additionally arranged on the basis of a common centrifugal pump, and partial fluid is subjected to secondary pressurization, so that the purpose of improving the lift is achieved, meanwhile, the fluid flow direction is relatively disordered due to the complication of an internal cavity, the efficiency is reduced, and more noises are brought. Traditional jet pump does not have interior water conservancy diversion facility, and some fluid directly flows to pump body delivery port, and another part is unordered towards pump body inside everywhere, and wherein unordered towards everywhere fluid has some again to pass through the nozzle, gets into the inside fluid that enters into people by the sprayer water inlet of sprayer of mixing of sprayer, accomplishes to mix with higher speed, gets into the impeller chamber and carries out the secondary pressure boost. In the whole process, due to the disordered impact of the fluid, large energy loss is caused, and noise caused by the impact of the fluid on the pump body 1 is brought.

Disclosure of Invention

The utility model aims at providing a mechanical scheme improves the inside runner environment of jet pump, improves jet pump efficiency, noise reduction.

The utility model aims at realizing through the following technical scheme:

a jet pump with an internal flow guide structure is characterized in that a pump body is cylindrical with an opening at the rear end, a pump body water inlet is formed in the front end of the pump body, and a pump body water outlet is formed in the rear end of the pump body; an ejector, a front vortex cover, an annular liquid guide, an impeller chamber and a rear vortex cover are sequentially arranged in the pump body from front to back; the ejector consists of an ejector water inlet, a nozzle and a spray pipe; the ejector is fixed by an ejector water inlet of the head part and internally connected with a water inlet of the pump body; the lower end of the water inlet of the ejector is provided with a conical nozzle, and the rear end of the nozzle is provided with a cylindrical spray pipe concentric with the nozzle; the front vortex cover is sequentially connected with the annular liquid guide and the rear vortex cover at the rear end; the annular liquid guide is arranged between the front vortex cover and the rear vortex cover, the front vortex cover and the rear vortex cover are tightly attached, and the rear vortex cover is tightly buckled on the front vortex cover and seals the front vortex cover in the pump body; an impeller chamber is formed in the center between the annular liquid guide front vortex cover and the annular liquid guide rear vortex cover, and an impeller is arranged in the impeller chamber;

an inner flow guide part is arranged between the ejector and the front vortex cover; the inner flow guide part is in a tapered cylinder shape, the front end with a small caliber faces the ejector, a connecting channel is arranged at the center of the inner flow guide part, a partition plate is arranged inside the connecting channel, and a plurality of spiral flow guide blades are arranged between the connecting channel and the outer wall of the inner flow guide part; the spray pipe at the rear end of the sprayer is internally connected with the connecting channel of the inner flow guide piece; the impeller chamber is communicated with the spray pipe and the connecting channel.

The water inlet of the pump body is positioned at the position close to the upper part of the front end of the pump body, and the water outlet of the pump body is positioned at the position above the rear end of the pump body.

The front end of the inner flow guide part is connected with the back of the ejector in a fastening way.

A flow passage is formed between the outer wall of the inner flow guide part and the inner wall of the pump body.

The front vortex cover is concentrically fixed by the top of the front vortex cover propping against the partition plate.

The utility model discloses an excellent effect is:

1. the fluid flows orderly, the loss is reduced, the efficiency is higher, and the noise is lower;

2. the disorder impact of the fluid on the interior of the pump body is less, so that the service life of mechanical accessories is longer;

3. the fluid pressure fluctuation tends to be stable, and intelligent control is easier to realize;

4. the back of the annular liquid guide is provided with an O-shaped ring, so that the sealing effect of the impeller chamber is enhanced.

Description of the drawings:

FIG. 1 is a sectional view of the structure of the present invention;

FIG. 2 is a front view of the inner baffle of the present invention;

fig. 3 is a fluid movement flow diagram inside the pump body during operation of the present invention.

In the figure: 1. a pump body; 1.1, a water inlet of a pump body; 1.2, a water outlet of the pump body; 2. an ejector; 2.1, a water inlet of the ejector; 2.2, a nozzle; 2.3, spraying a pipe; 3. an inner flow guide member; 3.1, connecting a channel; 3.2, guide vanes; 3.3, a partition plate; 4. a front vortex cover; 5. an impeller chamber; 6. annular drainage; 7. and a rear vortex cover.

Detailed Description

Referring to fig. 1, a jet pump with an internal flow guiding structure, a pump body 1 is a cylinder with an opening at the rear end. In the pump body 1, an ejector 2, an inner flow guide part 3, a front vortex cover 4, an annular liquid guide 6, an impeller chamber 5 and a rear vortex cover 7 are arranged in sequence from front to back. The position that the front end of the pump body 1 is close to the top is equipped with the pump body water inlet 1.1, and pump body delivery port 1.2 is equipped with above the pump body 1 rear end.

The ejector 2 consists of an ejector water inlet 2.1, a nozzle 2.2 and a spray pipe 2.3, the ejector 2 is fixedly connected with a pump body water inlet 1.1 through the ejector water inlet 2.1 at the head part, the lower end of the ejector water inlet 2.1 is provided with the conical nozzle 2.2, and the rear end of the nozzle 2.2 is provided with the cylindrical spray pipe 2.3 concentric with the nozzle. The end of the nozzle 2.3 is connected with the connecting channel 3.1 of the inner flow guide part 3.

As shown in fig. 2, the inner flow guiding member 3 is a tapered cylinder, the front end with a small caliber faces the ejector 2, a connecting channel 3.1 is arranged at the center of the inner flow guiding member 3, and a partition plate 3.3 is arranged inside the connecting channel 3.1. A plurality of spiral guide vanes 3.2 are arranged between the connecting channel 3.1 and the outer wall of the inner guide member 3. Referring to fig. 1 again, the front end of the inner diversion piece 3 is connected with the back of the ejector 2 in a fastening way, and the nozzle 2.3 at the rear end of the ejector 2 is internally connected with the connecting channel 3.1 of the inner diversion piece 3. A flow passage is formed between the outer wall of the inner flow guide part 3 and the inner wall of the pump body 1. The front vortex cover 4 is concentrically fixed by the top against the partition 3.3. The front vortex cover 4 is sequentially connected with an annular liquid guide 6 at the rear end and a rear vortex cover 7, and the rear vortex cover 7 is tightly buckled on the front vortex cover 4 and seals the front vortex cover and the rear vortex cover in the pump body 1. The annular guide liquid 6 is arranged between the front vortex cover 4 and the rear vortex cover 7, the three are tightly attached, an impeller chamber 5 is formed in the center, and the impeller chamber 5 is communicated with the spray pipe 2.3 and the connecting channel 3.1. An impeller is provided in the impeller chamber 5.

An O-shaped ring groove is arranged at the back of the annular liquid guide 6.

The utility model discloses with the key technology of current jet pump difference be in the pump body in increased water conservancy diversion spare, make the orderly output of the fluid that gets into the pump body. Now introduce the utility model discloses the work brief of jet pump states:

as shown by arrows in figure 3, fluid enters the ejector 2 through the water inlet 1.1 of the pump body and then enters the impeller chamber 5 through the spray pipe 2.3 to complete pressurization and is thrown out of the impeller. The utility model discloses in, interior water conservancy diversion spare 3 has been add, throw away after 5 inside pressure boost of impeller when the fluid, lead liquid 6 with fluid guide interior water conservancy diversion spare 3 by the annular (O type circle groove has been set up to the liquid back has been led to the annular, sealed effect has further been strengthened, make fluid flow guide interior water conservancy diversion spare 3 in more orderly flow direction), shunt by spiral guide vane 3.2 direction nozzle 2.2 population department again, some gets into nozzle 2.2 and sprays the pressure boost, another some fluid flow is through the runner direct outflow pump body delivery port 1.2 of 3 outer walls of interior water conservancy diversion spare and the formation of 1 inner wall of the pump body.

Claims

1. A jet pump with an inner flow guide structure is characterized in that a pump body (1) is cylindrical with an opening at the rear end, a pump body water inlet (1.1) is formed in the front end of the pump body (1), and a pump body water outlet (1.2) is formed in the rear end of the pump body; an ejector (2), a front vortex cover (4), an annular liquid guide (6), an impeller chamber (5) and a rear vortex cover (7) are sequentially arranged in the pump body (1) from front to back; the ejector (2) consists of an ejector water inlet (2.1), a nozzle (2.2) and a spray pipe (2.3); the ejector (2) is fixed by an ejector water inlet (2.1) at the head part and internally connected with a pump body water inlet (1.1); the lower end of the water inlet (2.1) of the ejector is provided with a conical nozzle (2.2), and the rear end of the nozzle (2.2) is provided with a cylindrical spray pipe (2.3) concentric with the nozzle; the front vortex cover (4) is sequentially connected with an annular liquid guide (6) at the rear end and a rear vortex cover (7); the annular liquid guide (6) is arranged between the front vortex cover (4) and the rear vortex cover (7), the front vortex cover and the rear vortex cover are tightly attached to each other, and the rear vortex cover (7) is tightly buckled on the front vortex cover (4) and seals the front vortex cover and the rear vortex cover in the pump body (1); an impeller chamber (5) is formed in the center between the front vortex cover (4) and the rear vortex cover (7) of the annular liquid guide (6), and an impeller is arranged in the impeller chamber (5); the method is characterized in that:

an inner flow guide part (3) is arranged between the ejector (2) and the front vortex cover (4); the inner flow guide piece (3) is cylindrical with a taper, the front end with a small caliber faces the ejector (2), a connecting channel (3.1) is arranged at the center of the inner flow guide piece (3), a partition plate (3.3) is arranged inside the connecting channel (3.1), and a plurality of spiral flow guide blades (3.2) are arranged between the connecting channel (3.1) and the outer wall of the inner flow guide piece (3); a spray pipe (2.3) at the rear end of the ejector (2) is internally connected with a connecting channel (3.1) of the inner flow guide piece (3); the impeller chamber (5) is communicated with the spray pipe (2.3) and the connecting channel (3.1).

2. The injection pump provided with the inner guide structure as set forth in claim 1, wherein: the water inlet (1.1) of the pump body is positioned at the position close to the upper part of the front end of the pump body (1), and the water outlet (1.2) of the pump body is positioned at the position above the rear end of the pump body (1).

3. The injection pump provided with the inner guide structure as set forth in claim 1, wherein: the front end of the inner flow guide piece (3) is connected with the back of the ejector (2) in a fastening way.

4. The ejector pump provided with the inner guide structure as set forth in claim 1 or 3, wherein: a flow channel is formed between the outer wall of the inner flow guide part (3) and the inner wall of the pump body (1).

5. The ejector pump provided with the inner guide structure as set forth in claim 1 or 3, wherein: the front vortex cover (4) is concentrically fixed by the top of the front vortex cover propping against the partition plate (3.3).