CN114922867A - Multi-channel combined jet pump - Google Patents

Abstract

The invention discloses a multi-channel combined jet pump, which relates to the technical field of jet pumps, comprising: a casing; chamber and mixing chamber, and the first partition has a through hole communicating with the suction chamber and the mixing chamber; the high-pressure fluid inlet pipe is provided with a plurality of high-pressure fluid inlet pipes, and the plurality of high-pressure fluid inlet pipes are distributed in the suction chamber at intervals, each One end of the high-pressure fluid inlet pipe is connected with the first end of the casing, and the other end of each high-pressure fluid inlet pipe penetrates the first partition plate and extends into the mixing chamber; the first low-pressure fluid inlet pipe, the first low-pressure fluid inlet pipe Connected with the suction chamber; the second low-pressure fluid inlet pipe, the second low-pressure fluid inlet pipe is communicated with the mixing chamber; the medium-pressure fluid outlet pipe, the medium-pressure fluid outlet pipe is arranged at the second end of the casing, and the medium-pressure fluid outlet pipe is connected to the mixing chamber room is connected. The invention can realize multi-stage energization of the jet pump.

Description

Multi-channel combined jet pump

technical field

The invention relates to the technical field of jet pumps, in particular to a multi-channel combined jet pump.

Background technique

At present, the existing jet pump can only achieve one-stage energization, and the high-pressure fluid inlet pipe and the low-pressure fluid inlet pipe connected to the suction chamber are respectively one, which leads to the poor energizing effect of the existing jet pump, so that the The velocity of the ejected fluid is relatively low.

Therefore, how to provide a jet pump capable of realizing multi-stage energization is an urgent problem to be solved by those skilled in the art.

SUMMARY OF THE INVENTION

In view of this, the present invention provides a multi-channel combined jet pump, aiming at one of the above-mentioned problems in the background art, to realize multi-stage energization of the jet pump.

In order to achieve the above object, the present invention adopts the following technical solutions:

A multi-channel combined jet pump, comprising:

case;

a first partition, the first partition is fixedly connected with the inner wall of the housing, the first partition divides the housing into a suction chamber and a mixing chamber, and the first partition has a communication the through holes of the suction chamber and the mixing chamber;

A plurality of high-pressure fluid inlet pipes are provided, and the plurality of high-pressure fluid inlet pipes are distributed in the suction chamber at intervals, and one end of each of the high-pressure fluid inlet pipes is connected to the first end of the casing. one end is connected, and the other end of each of the high-pressure fluid inlet pipes penetrates through the first partition plate and extends into the mixing chamber;

a first low-pressure fluid inlet pipe, the first low-pressure fluid inlet pipe is disposed on the casing, and the first low-pressure fluid inlet pipe is communicated with the suction chamber;

a second low-pressure fluid inlet pipe, the second low-pressure fluid inlet pipe is disposed on the housing, and the second low-pressure fluid inlet pipe communicates with the mixing chamber;

A medium-pressure fluid outlet pipe, the medium-pressure fluid outlet pipe is disposed at the second end of the housing, and the medium-pressure fluid outlet pipe communicates with the mixing chamber.

Further, the multi-channel combined jet pump further includes a guide casing, the guide casing is arranged in the mixing chamber, and one end of the guide casing facing the first baffle is fixedly connected to the inner wall of the casing , the cross-sectional area of the inner cavity of the guide shell gradually decreases from the first baffle to the other end.

Further, the medium pressure fluid outlet pipe includes a straight arm tube and an expansion tube, the small mouth end of the expansion tube is connected to one end of the straight arm tube, and the other end of the straight arm tube is communicated with the mixing chamber.

Further, one end of the straight-arm pipe close to the mixing chamber extends into the mixing chamber.

Further, the straight arm tube extends into the guide casing, and the outer diameter of the straight arm tube is smaller than the inner diameter of the smaller end of the opening of the guide casing.

Further, the number of the through holes on the first separator is the same as the number of the high-pressure fluid inlet pipes, the positions of the through holes correspond to the positions of the high-pressure fluid inlet pipes, and the high-pressure fluid One end of the inlet pipe close to the first partition plate extends into the mixing chamber through the through hole, and there is a gap between the inner wall of the through hole and the outer wall of the high-pressure fluid inlet pipe.

Further, the multi-channel combined jet pump further includes a baffle plate, a plurality of the baffle plates are arranged in each of the gaps, and the multiple baffle plates divide the gap into a plurality of baffle plates which are respectively connected to the Channels for suction chamber and mixing chamber.

As can be seen from the above technical solutions, compared with the prior art, the present disclosure provides a multi-channel combined jet pump, the interior of the housing is divided into a suction chamber and a mixing chamber by a first partition, and the low-pressure fluid is pumped by the first partition. The suction chamber entered by the low-pressure fluid inlet pipe enters the mixing chamber through the through hole on the first baffle plate, and performs first-level mixing with the high-pressure fluid introduced by the high-pressure fluid inlet pipe. , the mixed fluid is mixed with the low-pressure fluid introduced by the second low-pressure fluid inlet pipe, and finally ejected from the medium-pressure fluid outlet pipe. Level boost.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only It is an embodiment of the present invention. For those of ordinary skill in the art, other drawings can also be obtained according to the provided drawings without creative work.

Fig. 1 is the structural representation of the multi-channel combined jet pump provided by the present invention;

FIG. 2 is a cross-sectional view along the A-A direction in FIG. 1 according to the present invention.

3 is the suction chamber; 4 is the mixing chamber; 5 is the high-pressure fluid inlet pipe; 6 is the first low-pressure fluid inlet pipe; 7 is the second low-pressure fluid inlet pipe; 8 81 is a straight arm pipe; 82 is an expansion pipe; 9 is a second partition; 10 is a guide shell; 11 is a through hole; 12 is a guide plate.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

1 and 2, an embodiment of the present invention discloses a multi-channel combined jet pump, including:

shell 1;

The first partition 2, the first partition 2 is fixedly connected with the inner wall of the housing 1, the first partition 2 divides the housing 1 into a suction chamber 3 and a mixing chamber 4, and the first partition 2 has a communicating suction chamber. 3 and the through hole 11 of the mixing chamber 4;

The high-pressure fluid inlet pipe 5 is provided with a plurality of high-pressure fluid inlet pipes 5, and the plurality of high-pressure fluid inlet pipes 5 are distributed in the suction chamber 3 at intervals, and one end of each high-pressure fluid inlet pipe 5 is connected to the first end of the housing 1 , the other end of each high-pressure fluid inlet pipe 5 penetrates the first partition 2 and extends into the mixing chamber 4;

The first low-pressure fluid inlet pipe 6, the first low-pressure fluid inlet pipe 6 is arranged on the housing 1, and the first low-pressure fluid inlet pipe 6 is communicated with the suction chamber 3;

The second low-pressure fluid inlet pipe 7, the second low-pressure fluid inlet pipe 7 is arranged on the housing 1, and the second low-pressure fluid inlet pipe 7 is communicated with the mixing chamber 4;

The medium-pressure fluid outlet pipe 8 is disposed at the second end of the housing 1 , and the medium-pressure fluid outlet pipe 8 communicates with the mixing chamber 4 .

Wherein, in this embodiment, the casing 1 is a cylindrical casing 1, both ends of the casing 1 are closed blind ends, the first partition 2 is arranged along the radial direction of the first casing 1, and the casing 1 is divided into a suction chamber 3 and a mixing chamber 4, five high-pressure fluid inlet pipes 5 are arranged in the suction chamber 3, one of which is arranged on the central axis of the housing 1, and the remaining four high-pressure fluid inlet pipes are 5 are evenly distributed around the high-pressure fluid inlet pipe 5 at the central position, one end of each high-pressure fluid inlet pipe 5 penetrates the first end of the housing 1, and the other end of each high-pressure fluid inlet pipe 5 penetrates the first partition 2 Extending into the mixing chamber 4, in other embodiments, the number of high-pressure fluid inlet pipes 5 can be specifically set according to actual needs, and at the same time, in other embodiments, the second end of the housing 1 can also be set as an opening Structure, a first separator 2 and a second separator 9 are arranged in the housing 1, the mixing chamber 4 is enclosed by the first separator 2, the second separator 9 and the inner wall of the housing 1, and the medium pressure fluid The outlet pipe 8 is arranged on the second partition plate 9, the second partition plate 9 and the open end of the casing 1 form an open cavity, and the outlet of the medium pressure fluid outlet pipe 8 is located in the open cavity.

According to some embodiments of the present invention, a plurality of partitions can also be provided in the casing 1, and each partition is provided with a communication hole 11 for communicating with the cavities on both sides of the partition. The setting of , can realize the further energization of the fluid.

In this embodiment, preferably, the multi-channel combined jet pump further includes a guide casing 10 , the guide casing 10 is arranged in the mixing chamber 4 , and one end of the guide casing 10 facing the first partition plate 2 is connected with the casing 1 . The inner walls are fixedly connected, and the cross-sectional area of the inner cavity of the guide shell 10 gradually decreases from the first partition 2 to the other end. Specifically, the guide shell 10 is a funnel-shaped structure. By the arrangement of the guide shell 10 , the high-pressure fluid ejected from the plurality of high-pressure fluid inlet pipes 5 can be collected and guided, and the high-pressure fluid can be discharged in the guide shell 10 . The high-pressure fluid introduced by the inlet pipe 5 is mixed with the low-pressure fluid introduced by the first low-pressure fluid inlet pipe 6. In this process, the first-stage energy of the fluid is realized, and the fluid after the first-stage energy is finally released by the guide shell. 10. The smaller end of the open end is ejected and mixed with the low-pressure fluid introduced by the second low-pressure fluid inlet pipe 7, and the mixed fluid is ejected through the medium-pressure fluid outlet pipe 8. Step-by-step energy is added to increase the ejection speed of the mixed fluid.

In the above embodiment, preferably, the medium-pressure fluid outlet pipe 8 includes a straight arm pipe 81 and an expansion pipe 82, the small mouth end of the expansion pipe 82 is connected to one end of the straight arm pipe 81, and the other end of the straight arm pipe 81 is connected to the mixing chamber 4 Connected. Specifically, one end of the straight-arm pipe 81 close to the mixing chamber 4 extends into the mixing chamber 4 . The straight arm tube 81 extends into the guide casing 10 , and the outer diameter of the straight arm tube 81 is smaller than the inner diameter of the smaller end of the opening of the guide casing 10 . By extending the straight-arm pipe 81 into the guide casing 10 , the low-pressure fluid entered from the second low-pressure fluid inlet pipe 7 can enter the guide casing 10 , and a turbulent flow is formed in the guide casing 10 , and finally the medium-pressure fluid enters the guide casing 10 . The fluid outlet pipe 8 is ejected, thereby enhancing the ejection speed of the fluid.

In this embodiment, preferably, the number of the through holes 11 on the first separator 2 is the same as the number of the high pressure fluid inlet pipes 5 , the positions of the through holes 11 correspond to the positions of the high pressure fluid inlet pipes 5 , and the high pressure fluid inlet One end of the pipe 5 close to the first separator 2 extends into the mixing chamber 4 through a through hole 11 , and there is a gap between the inner wall of the through hole 11 and the outer wall of the high-pressure fluid inlet pipe 5 . The low-pressure fluid introduced by the first low-pressure fluid inlet pipe 6 enters the mixing chamber 4 through the gap between the through hole 11 and the high-pressure fluid inlet pipe 5, and the high-pressure fluid introduced from the high-pressure fluid inlet pipe 5 is mixed with the gap entering the mixing chamber 4. When the low-pressure fluid in the chamber 4 collides with the inner wall of the guide casing 10 , it rebounds, and the mixing degree of the high-pressure fluid and the low-pressure fluid in the guide casing 10 is enhanced.

In the above-mentioned embodiment, the multi-channel combined jet pump further includes a guide plate 12, and each gap is provided with a plurality of guide plates 12, and the plurality of guide plates 12 divide the gap into a plurality of guide plates respectively communicating with the suction chamber 3 and the suction chamber 3. Access to mixing chamber 4. Through the arrangement of the deflector 12, the low-pressure fluid entering the mixing chamber 4 from the suction chamber 3 can be divided into a diversion effect. The flow plate 12 can disturb the flow of the low-pressure fluid, thereby enhancing the disturbance of the mixed airflow and enhancing the mixing degree of the high-pressure fluid and the low-pressure fluid.

The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments, and the same and similar parts between the various embodiments can be referred to each other. As for the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant part can be referred to the description of the method.

The above description of the disclosed embodiments enables any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (7)

1. A multi-channel combination jet pump, comprising:

a housing;

the first partition plate is fixedly connected with the inner wall of the shell and divides the shell into a suction chamber and a mixing chamber, and a through hole for communicating the suction chamber and the mixing chamber is formed in the first partition plate;

a plurality of high-pressure fluid inlet pipes which are distributed in the suction chamber at intervals, wherein one end of each high-pressure fluid inlet pipe is connected with the first end of the shell, and the other end of each high-pressure fluid inlet pipe penetrates through the first partition plate and extends into the mixing chamber;

a first low-pressure fluid inlet pipe that is provided on the housing and that communicates with the suction chamber;

a second low-pressure fluid inlet pipe provided on the housing and communicating with the mixing chamber;

an intermediate pressure fluid outlet tube disposed at the second end of the housing, the intermediate pressure fluid outlet tube communicating with the mixing chamber.

2. The multi-channel combined jet pump as claimed in claim 1, further comprising a guide shell, wherein the guide shell is disposed in the mixing chamber, one end of the guide shell facing the first partition is fixedly connected to an inner wall of the casing, and a cross-sectional area of an inner cavity of the guide shell is gradually reduced from the first partition to the other end.

3. The multi-channel combined jet pump according to claim 2, wherein the medium-pressure fluid outlet pipe comprises a straight-arm pipe and an expansion pipe, a small end of the expansion pipe is connected with one end of the straight-arm pipe, and the other end of the straight-arm pipe is communicated with the mixing chamber.

4. The multi-channel combined jet pump as claimed in claim 3, wherein an end of the straight arm tube near the mixing chamber protrudes into the mixing chamber.

5. The multi-channel combined jet pump as claimed in claim 4, wherein the straight arm pipe extends into the guide shell, and the outer diameter of the straight arm pipe is smaller than the inner diameter of the smaller opening end of the guide shell.

6. The multi-channel combined jet pump as claimed in claim 1, wherein the number of the through holes on the first partition plate is the same as the number of the high-pressure fluid inlet pipes, the positions of the through holes correspond to the positions of the high-pressure fluid inlet pipes, one ends of the high-pressure fluid inlet pipes close to the first partition plate extend into the mixing chamber from the through holes, and a gap exists between the inner walls of the through holes and the outer walls of the high-pressure fluid inlet pipes.

7. The multi-channel combined jet pump of claim 6 further comprising a plurality of baffles disposed within each gap, the plurality of baffles dividing the gap into a plurality of channels communicating with the suction chamber and the mixing chamber, respectively.

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