Novel ejector

Abstract

The utility model discloses a novel ejector, and relates to the technical field of ejectors, the novel ejector comprises an ejector main body and an ejector pipe connected to the ejector main body, the ejector main body comprises a receiving chamber, a mixing chamber and a diffusion chamber which are connected in sequence, and the receiving chamber, the mixing chamber and the diffusion chamber are on the same axis; the injection pipe comprises a first vertical pipe, a first horizontal pipe and a nozzle which are sequentially connected, one end of the first vertical pipe is located on the outer side of the receiving chamber, the other end of the first vertical pipe penetrates through the receiving chamber to be connected with one end of the first horizontal pipe in the receiving chamber, and the other end of the first horizontal pipe is connected with the nozzle; due to the fact that the injection pipe, the receiving chamber, the mixing chamber and the diffusion chamber are located on the same axis, the injection efficiency of the injector is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of ejectors, and particularly relates to a novel ejector. Background Art

[0002] An ejector is a device that uses a high-speed and high-energy flow (liquid flow, gas flow or other material flow) to eject another low-speed and low-energy flow. The ejecting flow enters the mixing chamber through a converging nozzle, and the entrained flow is around it; through the mixing action at the boundary, the ejecting flow transfers energy to the entrained flow; the mixing zone formed by mixing gradually expands and fills the entire mixing chamber, and after a further mixing process, at the outlet of the mixing chamber, the flow almost becomes a uniform flow; usually there is a diffuser behind to reduce the flow velocity and increase the static pressure.

[0003] Currently, ejectors are widely used in industrial production and laboratories; however, in existing ejectors, the entrained flow enters from the side of the ejector at a 90-degree angle to the axis of the ejector, resulting in the problem of low ejecting efficiency.

[0004] Therefore, it is necessary to design an ejector with higher ejecting efficiency. Content of the Utility Model

[0005] The purpose of this utility model is to provide a novel ejector to solve the problem of low ejecting efficiency existing in the prior art.

[0006] To achieve the above purpose, this utility model adopts the following technical solutions:

[0007] A novel ejector includes an ejector body and an ejecting pipe connected to the ejector body. The ejector body includes a receiving chamber, a mixing chamber and a diffusing chamber connected in sequence, and the receiving chamber, the mixing chamber and the diffusing chamber are on the same axis; the ejecting pipe includes a first vertical pipe, a first horizontal pipe and a nozzle connected in sequence. One end of the first vertical pipe is located outside the receiving chamber, and the other end passes through the receiving chamber and is connected to one end of the first horizontal pipe inside the receiving chamber, and the other end of the first horizontal pipe is connected to the nozzle.

[0008] The novel ejector of the present utility model separately provides an ejector pipe connected to the ejector body. The ejector pipe includes a first vertical pipe, a first horizontal pipe and a nozzle connected in sequence. The ejecting air flow enters from one end of the first vertical pipe, passes through the first horizontal pipe and sprays out from the nozzle. The entrained air flow enters from one end of the receiving chamber, and then the ejecting air flow and the entrained air flow are mixed in the mixing chamber. Through the arrangement of the ejector pipe, the ejecting air flow enters from the ejector pipe, the entrained air flow enters from one end of the receiving chamber, and the receiving chamber, the mixing chamber and the diffuser chamber are on the same axis, so that the entrained gas and the whole ejector body are coaxial, without turning resistance, reducing the energy loss in the process of the entrained gas entering, improving the ejecting efficiency, and solving the problem of low efficiency of the ejector in the prior art.

[0009] Optionally, the ejector body, the first horizontal pipe and the nozzle are on the same axis.

[0010] By coaxially arranging the ejector body, the first horizontal pipe and the nozzle, when the ejecting gas sprays out through the nozzle, it is coaxial with the ejector body, further improving the ejecting efficiency.

[0011] Optionally, the first vertical pipe is perpendicular to the ejector body.

[0012] Optionally, one end of the receiving chamber is cylindrical and the other end is conical.

[0013] Through the arrangement of the conical end of the receiving chamber, the resistance when the entrained air flow enters is reduced, further improving the ejecting efficiency.

[0014] Optionally, the mixing chamber is cylindrical; the ejecting air flow and the entrained air flow are fully mixed in the mixing chamber for momentum exchange, so that before the ejecting air flow and the entrained air flow enter the diffuser chamber, the velocity field, temperature field and concentration field are uniformly distributed.

[0015] Optionally, the diffuser chamber is conical; in the diffuser chamber, the flow velocity of the mixed gas decreases, the static pressure increases, so that the pressure of the gas at the outlet of the diffuser chamber is greater than the pressure of the entrained gas.

[0016] Optionally, the nozzle is conical; the ejecting gas converts the static pressure energy into kinetic energy through the nozzle, so as to obtain sufficient kinetic energy.

[0017] Beneficial effects: The novel ejector of the present utility model separately provides an ejector pipe connected to the ejector body. The ejector pipe includes a first vertical pipe, a first horizontal pipe, and a nozzle connected in sequence. The ejector airflow enters from one end of the first vertical pipe, passes through the first horizontal pipe, and sprays out from the nozzle. The entrained airflow enters from one end of the receiving chamber, and then the ejector airflow and the entrained airflow are mixed in the mixing chamber. Through the setting of the ejector pipe, the ejector airflow enters from the ejector pipe, the entrained airflow enters from one end of the receiving chamber, and the receiving chamber, the mixing chamber, and the diffuser chamber are on the same axis, so that the entrained gas and the entire ejector body are coaxial, without turning resistance, reducing the energy loss during the entry of the entrained gas, improving the ejector efficiency, and solving the problem of low efficiency of the ejector in the prior art. Brief Description of the Drawings

[0018] Figure 1 It is a schematic diagram of the overall structure of the novel ejector in the embodiment.

[0019] In the figure: 1. Ejector body; 11. Receiving chamber; 12. Mixing chamber; 13. Diffuser chamber; 2. Ejector pipe; 21. First vertical pipe; 22. First horizontal pipe; 23. Nozzle. Detailed Embodiments

[0020] Embodiment

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the present utility model in combination with the drawings and the descriptions of the embodiments or the prior art. Obviously, the following descriptions of the structures of the drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. It should be noted here that the descriptions of these embodiment modes are used to help understand the present utility model, but do not constitute a limitation to the present utility model.

[0022] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by orientation words such as "front, rear, upper, lower, left, right", "horizontal, vertical, perpendicular, horizontal", and "top, bottom" are usually based on the orientation or positional relationships shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description. Without contrary explanations, these orientation words do not indicate and imply that the devices or elements referred to must have specific orientations or be constructed and operated in specific orientations. Therefore, they should not be construed as limiting the protection scope of the present utility model; the orientation words "inside, outside" refer to the inside and outside relative to the contours of the respective components.

[0023] In the description of the present utility model, it should be understood that the use of terms such as "first" and "second" to limit components is only for the convenience of differentiating the corresponding components. Without additional statements, the above terms have no special meanings, so they cannot be understood as limiting the protection scope of the present utility model.

[0024] As Figure 1 shown, this embodiment provides a new type of ejector, which includes an ejector body 1 and an ejector tube 2 connected to the ejector body 1. The ejector body 1 includes a receiving chamber 11, a mixing chamber 12, and a diffuser chamber 13 connected in sequence, and the receiving chamber 11, the mixing chamber 12, and the diffuser chamber 13 are on the same axis; in this embodiment, one end of the receiving chamber 11 is cylindrical and the other end is conical. By setting the conical end of the receiving chamber 11, the resistance when the entrained air flow enters can be reduced, and the ejection efficiency can be improved; the ejector tube 2 includes a first vertical tube 21, a first horizontal tube 22, and a nozzle 23 connected in sequence. Specifically, the first vertical tube 21 is vertically arranged with respect to the receiving chamber 11, and the first horizontal tube 22 and the nozzle 23 are located inside the receiving chamber 11 and horizontally arranged with respect to the receiving chamber 11; one end of the first vertical tube 21 is located outside the receiving chamber 11, and the other end passes through the receiving chamber 11 and is connected to one end of the first horizontal tube 22 inside the receiving chamber 11, and the other end of the first horizontal tube 22 is connected to the nozzle 23.

[0025] In the new type of ejector of this embodiment, an ejector tube 2 connected to the ejector body 1 is separately provided. The ejector tube 2 includes a first vertical tube 21, a first horizontal tube 22, and a nozzle 23 connected in sequence; the entrained air flow enters from one end of the first vertical tube 21, passes through the first horizontal tube 22, and is ejected from the nozzle 23; the entrained air flow enters from one end of the receiving chamber 11, and then the entrained air flow and the entrained air flow are mixed in the mixing chamber 12; through the setting of the ejector tube 2, the entrained air flow enters from the ejector tube 2, the entrained air flow enters from one end of the receiving chamber 11, and the receiving chamber 11, the mixing chamber 12, and the diffuser chamber 13 are on the same axis, so that the entrained gas is coaxial with the entire ejector body 1, there is no turning resistance, the energy loss during the entry of the entrained gas is reduced, the ejection efficiency is improved, and the problem of low efficiency of the ejector in the prior art is solved.

[0026] In an alternative embodiment, a novel ejector is provided, which includes an ejector body 1 and an ejector pipe 2 connected to the ejector body 1. The ejector body 1 includes a receiving chamber 11, a mixing chamber 12, and a diffuser chamber 13 that are connected in sequence, and the receiving chamber 11, the mixing chamber 12, and the diffuser chamber 13 are on the same axis; in this embodiment, one end of the receiving chamber 11 is cylindrical and the other end is conical. By setting the conical end of the receiving chamber 11, the resistance when the entrained air flow enters can be reduced, and the entrainment efficiency can be improved; the ejector pipe 2 includes a first vertical pipe 21, a first horizontal pipe 22, and a nozzle 23 that are connected in sequence. Specifically, the first vertical pipe 21 is perpendicularly arranged with respect to the receiving chamber 11, and the first horizontal pipe 22 and the nozzle 23 are located inside the receiving chamber 11 and are horizontally arranged with respect to the receiving chamber 11; one end of the first vertical pipe 21 is located outside the receiving chamber 11, and the other end passes through the receiving chamber 11 and is connected to one end of the first horizontal pipe 22 inside the receiving chamber 11, and the other end of the first horizontal pipe 22 is connected to the nozzle 23.

[0027] The ejector body 1, the first horizontal pipe 22, and the nozzle 23 are on the same axis; the first vertical pipe 21 is perpendicular to the ejector body 1.

[0028] By coaxially arranging the ejector body 1, the first horizontal pipe 22, and the nozzle 23, when the entraining gas is ejected through the nozzle 23, it is coaxial with the ejector body 1, further improving the entrainment efficiency.

[0029] In an alternative embodiment, the mixing chamber 12 is cylindrical; the entraining air flow and the entrained air flow are fully mixed in the mixing chamber 12, and momentum exchange occurs, so that before the entraining air flow and the entrained air flow enter the diffuser chamber 13, the velocity field, temperature field, and concentration field are evenly distributed.

[0030] In an alternative embodiment, the diffuser chamber 13 is conical; in the diffuser chamber 13, the velocity of the mixed gas decreases, and the static pressure increases, so that the pressure of the gas at the outlet of the diffuser chamber 13 is greater than the pressure of the entrained gas.

[0031] In an alternative embodiment, the nozzle 23 is conical; the entraining gas converts the static pressure energy into kinetic energy through the nozzle 23, thereby obtaining sufficient kinetic energy.

[0032] Working principle: When the novel ejector of this embodiment is in use, the ejecting air flow enters from the ejecting pipe 2, sprays out at high speed through the nozzle 23, generates a negative pressure around it, sucks in the external sucked air flow, mixes fully in the mixing chamber 12, and conducts energy exchange, so that before the ejecting air flow and the sucked air flow enter the diffuser chamber 13, the velocity field, temperature field and concentration field are uniformly distributed to form a uniform flow. The uniform flow passes through the diffuser chamber 13, the flow velocity decreases, and the static pressure increases, so that the pressure of the gas at the outlet of the diffuser chamber 13 is greater than the pressure of the sucked gas. The novel ejector of this embodiment enables the sucked air flow to enter from the inlet of the receiving chamber 11 through the ejecting pipe 2 arranged on the side, and the receiving chamber 11, the mixing chamber 12 and the diffuser chamber 13 are coaxially arranged, so that the sucked air flow is not affected by the turning resistance and the energy loss is reduced. Compared with the existing situation where the sucked air flow enters the ejector at a 90-degree angle, the ejecting efficiency of the ejector is improved.

[0033] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the protection scope of the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A new type of ejector, comprising an ejector body (1) and an ejector pipe (2) connected to the ejector body (1), characterized in that, The ejector body (1) includes a receiving chamber (11), a mixing chamber (12), and a diffuser chamber (13) connected in sequence, and the receiving chamber (11), the mixing chamber (12), and the diffuser chamber (13) are on the same axis; the ejector pipe (2) includes a first vertical pipe (21), a first horizontal pipe (22), and a nozzle (23) connected in sequence. One end of the first vertical pipe (21) is located outside the receiving chamber (11), and the other end passes through the receiving chamber (11) and is connected to one end of the first horizontal pipe (22) inside the receiving chamber (11), and the other end of the first horizontal pipe (22) is connected to the nozzle (23).

2. The novel ejector according to claim 1, characterized in that, The ejector body, the first horizontal pipe (22), and the nozzle (23) are on the same axis.

3. The novel ejector according to claim 1, characterized in that, The first vertical pipe (21) is perpendicular to the ejector body (1).

4. The novel ejector according to claim 1, characterized in that, One end of the receiving chamber (11) is cylindrical, and the other end is conical.

5. The novel ejector according to claim 1, characterized in that, The mixing chamber (12) is cylindrical.

6. The novel ejector according to claim 1, characterized in that, The diffuser chamber (13) is conical.

7. The novel ejector according to claim 1, characterized in that, The nozzle (23) is conical.

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