Ejector with heat exchange function

Abstract

The utility model discloses an ejector with a heat exchange function, which is characterized in that one end of a suction chamber is provided with a throat pipe, the periphery of the throat pipe is provided with a thickened bulge, the thickened bulge is internally provided with a spiral heat exchange channel, two ends of the heat exchange channel are respectively provided with a through hole, and the through holes are communicated with the outside of the thickened bulge; two through holes are formed in the throat pipe, a thickened protrusion is arranged on the throat pipe, heat exchange pipeline connectors are arranged at the positions, located at the two through holes, of the thickened protrusion, the nozzle is inserted into the suction chamber, the end, away from the suction chamber, of the throat pipe is connected with the diffuser pipe, and a driving fluid inlet is formed in one side of the suction chamber. The two ends of the heat exchange channel are provided with the heat exchange pipeline connectors so as to be communicated with the heat exchange pipeline, through the heat exchange channel at the throat pipe, when the ejector works, heat exchange can be conducted on the throat pipe through the heat exchange medium, and therefore heat exchange with ejected mixed liquid is achieved, and the flexibility and applicability of the ejection technology with the temperature requirement are greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of ejector technology, specifically to an ejector with heat exchange function. Background Technology

[0002] A jet injector is a vacuum-generating device that uses fluid to transfer energy and mass. It employs a pressurized water stream ejected through symmetrically distributed nozzles at a certain angle, converging at a single focal point. Due to the extremely high velocity of the jetting water, pressure energy is converted into velocity energy, causing a decrease in pressure in the suction zone and creating a vacuum, thus forming an even higher vacuum within the chamber.

[0003] Ejectors can be used with liquids, gases, and even some solid particles. However, most current ejectors cannot control the temperature of the internal liquid / gas mixture. When temperature control is critical, external heat exchange mechanisms are necessary, significantly reducing the ejector's flexibility. Therefore, an improved technology is urgently needed to address this problem in existing technologies. Utility Model Content

[0004] The purpose of this invention is to provide an injector with heat exchange function, which can use a heat exchange medium to exchange heat at the throat, thereby achieving heat exchange with the ejected mixed liquid. For injection processes with temperature requirements, the flexibility and applicability are greatly improved, thus solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an injector with heat exchange function, comprising an intake chamber, a nozzle, a throat, and a diffuser. The intake chamber has a throat at one end, and a thickened protrusion is provided around the throat. A spiral heat exchange channel is formed inside the thickened protrusion, and through holes are provided at both ends of the heat exchange channel. These through holes communicate with the outside of the thickened protrusion. Heat exchange pipeline interfaces are provided at the two through holes on the thickened protrusion. The end of the intake chamber away from the throat is open, and the nozzle is inserted into the open end of the intake chamber. The end of the throat away from the intake chamber is connected to the diffuser. An ejector fluid inlet is provided on one side of the intake chamber.

[0006] Preferably, the present invention provides an injector with heat exchange function, wherein the nozzle is provided with a main fluid inlet.

[0007] Preferably, the present invention provides an injector with heat exchange function, wherein the suction chamber is provided with a first flange at the open end.

[0008] Preferably, the present invention provides an injector with heat exchange function, wherein a second flange is provided at the end of the throat tube away from the suction chamber.

[0009] Preferably, the present invention provides an injector with heat exchange function, wherein the diffuser tube is provided with a third flange and a fourth flange at both ends, and the third flange is connected to the second flange.

[0010] Preferably, the present invention provides an ejector with heat exchange function, wherein the ejector fluid inlet is provided with a fifth flange.

[0011] Preferably, the present invention provides an injector with heat exchange function, wherein the nozzle is conical, a baffle is provided at the outer end of the nozzle, and a gasket is provided between the baffle and the first flange.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] The throat section is equipped with a thickened protrusion, and a heat exchange channel is set inside the thickened protrusion. Both ends of the heat exchange channel are equipped with heat exchange pipeline interfaces to achieve interconnection with the heat exchange pipeline. Through the heat exchange channel at the throat, heat exchange medium can be used to exchange heat at the throat when the ejector is working, thereby achieving heat exchange with the ejected mixed liquid. For injection processes with temperature requirements, the flexibility and applicability are greatly improved. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the cross-sectional structure of the present invention;

[0015] Figure 2 This is a schematic diagram of the appearance and structure of this utility model.

[0016] In the diagram: 1. Suction chamber; 2. Nozzle; 3. Throat; 4. Diffuser tube; 5. Thickened protrusion; 6. Heat exchange channel; 7. Through hole; 8. Heat exchange pipeline interface; 9. Ejector fluid inlet; 10. Main fluid inlet; 11. First flange; 12. Second flange; 13. Third flange; 14. Fourth flange; 15. Fifth flange; 16. Bending plate; 17. Gasket. Detailed Implementation

[0017] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0018] It should be noted that in the description of this utility model, the terms "inner", "outer", "upper", "lower", "both sides", "one end", "the other end", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0019] Please see Figure 1-2 This utility model provides a technical solution: an injector with heat exchange function, including an intake chamber 1, a nozzle 2, a throat 3, and a diffuser 4. The throat 3 is located at one end of the intake chamber 1, and a thickened protrusion 5 is located around the throat 3. A spiral heat exchange channel 6 is formed inside the thickened protrusion 5. Through holes 7 are located at both ends of the heat exchange channel 6, and the through holes 7 are interconnected with the outside of the thickened protrusion 5. Heat exchange pipeline interfaces 8 are located at the two through holes 7 on the thickened protrusion 5. The end of the intake chamber 1 away from the throat 3 is open, and the nozzle 2 is inserted into the open end of the intake chamber 1. The nozzle 2 is provided with a main fluid inlet 10 to allow the main fluid to enter. The nozzle 2 is conical, and a baffle 16 is provided at the outer end of the nozzle 2. A flange 16 is provided between the baffle 16 and the first flange 11. Gasket 17 is used to ensure the sealing between baffle 16 and suction chamber 1. The end of throat 3 away from suction chamber 1 is connected to diffuser 4. A jet fluid inlet 9 is provided on one side of suction chamber 1. A fifth flange 15 is provided on jet fluid inlet 9 to connect with the jet fluid storage device. A first flange 11 is provided at the open end of suction chamber 1 to connect with the pumping device of the main body. A second flange 12 is provided at the end of throat 3 away from suction chamber 1 to connect with diffuser 4. A third flange 13 and a fourth flange 14 are provided at both ends of diffuser 4. The third flange 13 is connected to the second flange 12. The fourth flange 14 is connected to the inlet of the mixed liquid receiving device.

[0020] Installation method and operating principle: The entire structure can be made of carbon steel. When casting the suction chamber 1 and throat 3, a spiral core is used to prefabricate the heat exchange channel 6. During assembly, insert the nozzle 2 into the suction chamber 1, and secure the diffuser 4 to the second flange 12 of the throat 3 via the third flange 13. Before use, connect the two heat exchange pipeline interfaces 8 to the heat exchange pipeline. When used as a mixed-bed acid or alkali injector, the entire unit is securely connected to the condensate injection equipment via the first flange 11. At this time, the baffle 16 of the nozzle 2 is clamped between the first flange 11 and the flange at the outlet of the condensate injection equipment. Condensate is ejected at high speed from the main fluid inlet 10. Through Bernoulli's principle, the acid / alkali solution is introduced into the suction chamber 1 from the ejector fluid inlet 9 and mixed with the condensate before being ejected from the diffuser 4. Similarly, when used for gases, water vapor is ejected at high speed from the main fluid inlet 10, and the ejector gas is introduced into the suction chamber 1 through the ejector fluid inlet 9, mixed with the water vapor, and then ejected from the diffuser 4. During operation, heat exchange occurs between the heat exchange medium in the heat exchange channel 6 and the mixed solution at the throat 3, allowing for slight adjustment of the ejection temperature of the mixed gas / liquid, thus saving production time. This utility model has a reasonable structure. The throat tube 3 is provided with a thickened protrusion 5, and a heat exchange channel 6 is provided inside the thickened protrusion 5. Heat exchange pipeline interfaces 8 are provided at both ends of the heat exchange channel 6 to achieve interconnection with the heat exchange pipeline. Through the heat exchange channel 6 at the throat tube 3, heat exchange can be carried out at the throat tube 3 by the heat exchange medium when the ejector is working, thereby achieving heat exchange with the ejected mixed liquid. For the injection process with temperature requirements, the flexibility and applicability are greatly improved.

[0021] Any aspects of this utility model not described in detail are well-known technologies to those skilled in the art.

[0022] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications and equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An injector with heat exchange function, characterized in that: The device includes an intake chamber (1), a nozzle (2), a throat (3), and a diffuser (4). The intake chamber (1) is provided with a throat (3) at one end. A thickened protrusion (5) is provided around the throat (3). A spiral heat exchange channel (6) is opened inside the thickened protrusion (5). Through holes (7) are provided at both ends of the heat exchange channel (6). The through holes (7) are connected to the outside of the thickened protrusion (5). Heat exchange pipeline interfaces (8) are provided at the two through holes (7) of the thickened protrusion (5). The end of the intake chamber (1) away from the throat (3) is open. The nozzle (2) is inserted into the open end of the intake chamber (1). The end of the throat (3) away from the intake chamber (1) is connected to the diffuser (4). An ejector fluid inlet (9) is provided on one side of the intake chamber (1).

2. The ejector with heat exchange function according to claim 1, characterized in that: The nozzle (2) is provided with a main fluid inlet (10).

3. The ejector with heat exchange function according to claim 1, characterized in that: The suction chamber (1) is provided with a first flange (11) at one of its open ends.

4. The ejector with heat exchange function according to claim 1, characterized in that: A second flange (12) is provided at the end of the trachea (3) away from the inhalation chamber (1).

5. The ejector with heat exchange function according to claim 1, characterized in that: The diffuser tube (4) is provided with a third flange (13) and a fourth flange (14) at both ends, and the third flange (13) is connected to the second flange (12).

6. The ejector with heat exchange function according to claim 1, characterized in that: The ejector fluid inlet (9) is provided with a fifth flange (15).

7. The ejector with heat exchange function according to claim 1, characterized in that: The nozzle (2) is conical, and a baffle (16) is provided at the outer end of the nozzle (2). A gasket (17) is provided between the baffle (16) and the first flange (11).

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