A liquid phase ejector annular gap inlet two-stage ejector

Abstract

This invention belongs to the field of jet ejectors, specifically a liquid-phase ejector with annular gap air inlet and a two-stage jet ejector. Addressing the limitation of existing jet ejectors with fixed internal structures that cannot adjust the air inlet flow rate according to operational needs, the following solution is proposed: A mounting pipe is included, with a mixing outlet pipe fixedly connected to one end. A first mounting ring, a second mounting ring, and a third mounting ring are sequentially fixed along the axial direction on the inner wall of the mounting pipe. A nozzle is fixedly mounted on the inner wall of the first mounting ring, and a throat is fixedly connected between the second and third mounting rings. In this invention, the actual flow area within the flow channel can be adjusted as needed, making it suitable for various operating conditions and avoiding the energy waste caused by traditional fixed structures. It also extends the fluid mixing path, allowing the fluid and gas to undergo two mixing processes, ensuring uniform mixing.

Description

Technical Field

[0001] This utility model relates to the field of jet ejector technology, and in particular to a liquid phase ejector annular gap air inlet two-stage jet ejector. Background Technology

[0002] The liquid phase ejector annular gap air inlet dual-stage jet generator is a dual-stage fluid mixing and energy transfer device that combines liquid phase ejection and annular gap air inlet technologies. Its core function is to use high-pressure working fluid to entrain and accelerate low-pressure fluid, thereby achieving full mixing, energy exchange and pressure increase of two-phase or multi-phase fluids.

[0003] However, in the existing technology, the internal structure of the jet injector is fixed and cannot be adjusted according to the working requirements, which limits its use.

[0004] Therefore, we propose a liquid phase ejector annular gap two-stage ejector. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing jet ejectors, which have a fixed internal structure and cannot adjust the air intake flow according to working needs, thus limiting their use. In response, this invention proposes a liquid phase ejector annular gap air intake dual-stage jet ejector.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A liquid-phase ejector annular gap inlet two-stage ejector includes:

[0008] The installation tube has a mixing outlet tube fixedly connected to one end, and the inner wall of the installation tube is sequentially fixed with a first installation ring, a second installation ring and a third installation ring along the axial direction.

[0009] A nozzle is fixedly installed on the inner wall of the first mounting ring, and a throat is fixedly connected between the second and third mounting rings. A first mixing chamber and a second mixing chamber are formed at both ends of the throat.

[0010] The outer walls of the first mounting ring, the second mounting ring, and the third mounting ring are all provided with drainage grooves. The outer wall of the mounting tube is provided with multiple circumferentially distributed sliding grooves. Each sliding groove is slidably provided with an adjusting block that can adjust the drainage area. One end of the adjusting block slides into the drainage groove. The outer wall of the mounting tube is provided with an adjusting mechanism that drives the adjusting block to move axially.

[0011] In one possible design, the adjustment mechanism includes two mounting seats, which are symmetrically fixed to the outer wall of the mounting tube. A movable ring is rotatably connected between the two mounting seats. One side of the movable ring has multiple guide grooves. A rotating rod passes through the guide grooves and engages with them. A bolt is threaded through the outer wall of the movable ring. One of the mounting seats has multiple positioning grooves on its outer wall, and one end of the bolt is located in one of the positioning grooves.

[0012] In one possible design, an indicator block is fixed on one side of the movable ring, and multiple indicator slots are provided on the surface of the mounting base. The indicator slots correspond to the positioning slots, and the indicator block and indicator slots are used in conjunction.

[0013] In one possible design, the second mounting ring has a first guide surface on both the end face of the throat tube and the inlet end of the throat tube, and the first guide surface is a tapered flared structure.

[0014] In one possible design, the inlet edge of the drainage channel and the contact end of the adjustment block are both provided with a second guiding surface, which is a circular arc transition surface.

[0015] In one possible design, two triangular blocks are integrally formed on one side of the adjusting block, the triangular blocks cooperate with the second guide surface, and two relief grooves are formed on one side of the slide groove, the relief grooves and the triangular blocks slide together.

[0016] In this application, during use, high-pressure working fluid forms a high-speed jet through the nozzle, generating negative pressure in the first mixing chamber. Low-pressure fluid is introduced into the outer wall of the entrainment mounting pipe through the drainage groove. After initial mixing in the first mixing chamber, the two-phase fluids enter the throat. The high-speed flow in the throat intensifies fluid shearing and turbulence, and some of the entrained fluid passes through the second and third mounting rings into the second mixing chamber. The mixed fluid undergoes secondary mixing with the entrained fluid in the second mixing chamber and is finally output through the mixed outlet pipe.

[0017] When adjusting the drainage area, rotate the bolt to disengage it from the corresponding positioning groove, then rotate the movable ring. The movable block drives the guide groove to rotate, which in turn moves the rotating rod and the adjusting block, thereby changing the size of the drainage area that can pass through the drainage groove. After adjustment, align the indicator block with the corresponding indicator groove, and then rotate the bolt into the corresponding positioning groove.

[0018] Beneficial effects: In this utility model, the liquid phase ejector annular gap air inlet dual-stage ejector, through the setting of multiple structures such as the flow channel, adjusting block and movable ring, can adjust the actual flow area in the flow channel as needed, and is suitable for the flow requirements of various working conditions, avoiding the energy waste caused by the traditional fixed structure;

[0019] In this invention, the liquid phase ejector annular gap air inlet dual-stage jet device, through the arrangement of multiple structures such as the first mixing chamber, the second mixing chamber and the throat, can extend the fluid mixing path, so that the fluid and gas are mixed twice, ensuring the uniformity of the mixing;

[0020] In this invention, the actual flow area in the flow channel can be adjusted as needed, which is suitable for the flow requirements of various working conditions. It avoids the energy waste caused by traditional fixed structures, and can extend the fluid mixing path so that the fluid and gas are mixed twice, ensuring the uniformity of the mixture. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a liquid phase ejector annular gap air inlet dual-stage ejector proposed in this utility model.

[0022] Figure 2 This is a schematic diagram of the internal structure of the mounting pipe of a liquid phase ejector annular gap air inlet dual-stage ejector proposed in this utility model;

[0023] Figure 3 This is a partial three-dimensional structural schematic diagram from a first perspective of a liquid phase ejector annular gap air inlet dual-stage jet ejector proposed in this utility model.

[0024] Figure 4 This is a partial three-dimensional structural schematic diagram from a second perspective of a liquid phase ejector annular gap air inlet dual-stage jet ejector proposed in this utility model.

[0025] Figure 5 This is a partial three-dimensional structural schematic diagram from the third perspective of a liquid phase ejector annular gap air inlet dual-stage ejector proposed in this utility model.

[0026] In the diagram: 1. Mounting pipe; 2. Mixing outlet pipe; 3. First mounting ring; 4. Second mounting ring; 5. Third mounting ring; 6. Nozzle; 7. Throat; 8. First mixing chamber; 9. Second mixing chamber; 10. First guide surface; 11. Drainage groove; 12. Slide groove; 13. Relief groove; 14. Mounting base; 15. Movable ring; 16. Adjusting block; 17. Rotating rod; 18. Guide groove; 19. Bolt; 20. Positioning groove; 21. Indicator groove; 22. Indicator block; 23. Second guide surface; 24. Triangular block. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0028] Example 1: Refer to Figures 1-5 An ejector, comprising:

[0029] Installation tube 1, one end of which is fixedly connected to a mixing outlet tube 2, and the inner wall of installation tube 1 is sequentially fixedly provided with a first installation ring 3, a second installation ring 4 and a third installation ring 5 along the axial direction;

[0030] A nozzle 6 is fixedly installed on the inner wall of the first mounting ring 3. A throat 7 is fixedly connected between the second mounting ring 4 and the third mounting ring 5. A first mixing chamber 8 and a second mixing chamber 9 are formed at both ends of the throat 7. The first mixing chamber 8 is located on the outlet side of the nozzle 6, and the second mixing chamber 9 is located on the inlet side of the mixing outlet pipe 2.

[0031] The outer walls of the first mounting ring 3, the second mounting ring 4, and the third mounting ring 5 are all provided with drainage grooves 11. The outer wall of the mounting tube 1 is provided with multiple circumferentially distributed sliding grooves 12. Each sliding groove 12 has an adjustable block 16 with an adjustable drainage area slidably disposed therein. One end of the adjustable block 16 slides into the drainage groove 11. The outer wall of the mounting tube 1 is provided with an adjustment mechanism for driving the adjustable block 16 to move axially. The adjustment mechanism includes two mounting seats 14, which are symmetrically fixed to the outer wall of the mounting tube 1. A movable connecting element is rotatably connected between the two mounting seats 14. The movable ring 15 has multiple guide grooves 18 through one side. The rotating rod 17 passes through the guide grooves 18 and cooperates with them. By rotating the movable ring 15, the position of each adjusting block 16 can be adjusted synchronously, thereby changing the size of the drainage area. The outer wall of the movable ring 15 has a threaded bolt 19 through it. The outer wall of one of the mounting bases 14 has multiple positioning grooves 20. One end of the bolt 19 is located in one of the positioning grooves 20. The bolt 19 and the multiple positioning grooves 20 cooperate to precisely adjust the change of the drainage area.

[0032] This application can be used in the field of jet injectors, or in other fields applicable to this application.

[0033] Example 2: An improved liquid-phase ejector annular gap inlet two-stage ejector based on Example 1, which is applied to the field of ejectors;

[0034] In another aspect of this embodiment, an indicator block 22 is fixedly provided on one side of the movable ring 15, and a plurality of indicator grooves 21 are provided on the surface of the mounting base 14. The indicator grooves 21 correspond to the positioning grooves 20. The indicator block 22 and the indicator grooves 21 work together to provide assistance to the workers and facilitate the alignment of the bolts 19 and the positioning grooves 20.

[0035] In another aspect of this embodiment, the second mounting ring 4 is provided with a first guide surface 10 on the end face of the throat 7 and the inlet end of the throat 7. The first guide surface 10 is a conical flared structure with a cone angle of 30°-60° to reduce the local resistance when the fluid enters the throat 7.

[0036] In another aspect of this embodiment, the inlet edge of the flow channel 11 and the contact end of the adjustment block 16 are both provided with a second flow guide surface 23. The second flow guide surface 23 is a circular arc transition surface with a radius of curvature of 2-5mm, so as to reduce the local resistance when the fluid passes through the flow channel 11.

[0037] In another aspect of this embodiment, two triangular blocks 24 are integrally formed on one side of the adjusting block 16. The triangular blocks 24 cooperate with the second guide surface 23, so that the second guide surface 23 on the mounting ring and the second guide surface 23 on the adjusting block 16 can be connected to form a complete guide channel. Two clearance grooves 13 are provided on one side of the slide groove 12. The clearance grooves 13 and the triangular blocks 24 slide to ensure that there is no interference when the adjusting block 16 moves axially.

[0038] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A liquid-phase ejector annular gap inlet two-stage ejector, characterized in that, include: The installation tube (1) is fixedly connected to a mixing outlet tube (2) at one end. The inner wall of the installation tube (1) is sequentially fixed with a first installation ring (3), a second installation ring (4) and a third installation ring (5) along the axial direction. A nozzle (6) is fixedly installed on the inner wall of the first mounting ring (3), and a throat (7) is fixedly connected between the second mounting ring (4) and the third mounting ring (5). A first mixing chamber (8) and a second mixing chamber (9) are formed at both ends of the throat (7); The outer walls of the first mounting ring (3), the second mounting ring (4) and the third mounting ring (5) are all provided with drainage grooves (11). The outer wall of the mounting tube (1) is provided with multiple circumferentially distributed sliding grooves (12). Each sliding groove (12) is slidably provided with an adjustable block (16) with an adjustable drainage area. One end of the adjustable block (16) extends slidably into the drainage groove (11). The outer wall of the mounting tube (1) is provided with an adjustment mechanism to drive the adjustable block (16) to move axially.

2. The liquid-phase ejector annular gap inlet dual-stage jet ejector according to claim 1, characterized in that, The adjustment mechanism includes two mounting seats (14), which are symmetrically fixed on the outer wall of the mounting tube (1). A movable ring (15) is rotatably connected between the two mounting seats (14). Multiple guide grooves (18) are opened through one side of the movable ring (15). A rotating rod (17) passes through the guide groove (18) and cooperates with the guide groove (18). A bolt (19) is threaded through the outer wall of the movable ring (15). Multiple positioning grooves (20) are opened on the outer wall of one of the mounting seats (14). One end of the bolt (19) is located in one of the positioning grooves (20).

3. A liquid-phase ejector annular gap inlet dual-stage jet ejector according to claim 2, characterized in that, An indicator block (22) is fixed on one side of the movable ring (15), and a plurality of indicator grooves (21) are opened on the surface of the mounting base (14). The indicator grooves (21) and the positioning grooves (20) correspond to each other, and the indicator block (22) and the indicator grooves (21) are used together.

4. A liquid-phase ejector annular gap inlet dual-stage jet injector according to claim 3, characterized in that, The second mounting ring (4) is provided with a first guide surface (10) on the end face facing the throat (7) and the inlet end of the throat (7), and the first guide surface (10) is a conical flared structure.

5. A liquid-phase ejector annular gap inlet dual-stage jet injector according to claim 4, characterized in that, The inlet edge of the diversion channel (11) and the contact end of the adjustment block (16) are both provided with a second guide surface (23), which is a circular arc transition surface.

6. A liquid-phase ejector annular gap inlet dual-stage jet injector according to claim 5, characterized in that, The adjusting block (16) has two triangular blocks (24) integrally formed on one side. The triangular blocks (24) cooperate with the second guide surface (23). The sliding groove (12) has two relief grooves (13) on one side. The relief grooves (13) and the triangular blocks (24) slide together.

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