Efficient acid liquor dilution ejector with self-adaptive flow regulation function

Abstract

The invention belongs to the technical field of acid liquor dilution, and discloses a self-adaptive flow regulation efficient acid liquor dilution ejector which comprises an ejector body and further comprises a self-adaptive flow regulation assembly mounted in the ejector body. According to the scheme, acid liquid and dilution liquid are input into the three-way pipeline and the low-pressure dilution liquid input pipe respectively, the acid liquid enters the three-way pipeline to extrude the piston core rod to move downwards and enable the spring to be compressed in an accumulated force mode, when the piston core rod moves downwards, the top end of the piston core rod gradually relieves blocking of the top end of the communicating pipe, and the acid liquid is guided to the expansion face through the conical flow guide plate; the liquid on the expansion surface covers the surface of the funnel surface and is mixed with the acid liquid output from the bottom end of the three-way pipeline, the mixed liquid is discharged through the bottom end of the throat pipe piece, when the flow of the three-way pipeline is increased, the descending distance of the piston core rod is increased, and meanwhile, the communication between the low-pressure diluent input pipe and the communicating pipe is increased; therefore, the self-adaptive adjustment of the injection amount of the acid liquid and the dilution liquid is realized.

Description

Technical Field

[0001] This invention belongs to the field of acid dilution technology, specifically a high-efficiency acid dilution injector with adaptive flow rate adjustment. Background Technology

[0002] Acids (such as hydrochloric acid and sulfuric acid) are important chemical raw materials and are widely used in chemical production. However, in industrial applications, highly concentrated acids are generally not used directly. Therefore, acids usually need to be diluted before use.

[0003] In acid dilution, the ratio of the liquid to be diluted (e.g., water) to the acid is usually determined beforehand. The diluent is then placed in a tank, and the acid is slowly injected while a stirrer within the tank ensures thorough mixing and uniform heat and concentration. However, mixing acid by stirring typically requires prolonged agitation, resulting in low mixing efficiency. Using an ejector to mix acid allows for rapid micro-mixing of the acid and diluent using a high-speed jet, significantly improving mixing efficiency and uniformity. However, the mixing effect of an ejector is highly dependent on the stability of its inlet flow rate; its structure and operating principle prevent it from adaptively adjusting to fluctuations in the upstream acid input.

[0004] Therefore, in order to solve the above problems, a high-efficiency acid dilution injector with adaptive flow regulation is proposed. Summary of the Invention

[0005] To address the problems mentioned in the background section, this invention provides a high-efficiency acid dilution injector with adaptive flow regulation, which solves the problem that the injector cannot adaptively adjust according to fluctuations in upstream acid input.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an adaptive flow rate regulating high-efficiency acid dilution injector, comprising an injector body, and further comprising: an adaptive flow rate regulating component installed in the injector body; The injector body includes a three-way pipe, a throat fitting is fixedly sleeved at the bottom of the three-way pipe, the other two ends of the three-way pipe are located outside the throat fitting, and a low-pressure diluent input pipe is fixedly connected to one end of the top of the three-way pipe. The adaptive flow regulation component includes a piston rod vertically and movably installed in a tee pipe. The bottom end of the piston rod can initially block the bottom end of the tee pipe. The top end of the piston rod extends into the low-pressure diluent input pipe and is fitted with a spring. The top and bottom ends of the spring are fixedly connected to the top end of the piston rod and the top end of the tee pipe, respectively. A connecting rod is fixedly connected to the top end of the piston rod, and the bottom end of the connecting rod extends through the low-pressure diluent input pipe into the throat fitting and is fixedly connected to a conical guide plate movably fitted outside the low-pressure diluent input pipe. A gap is left between the bottom outer edge of the conical guide plate and the inner wall of the throat fitting. A set of connecting pipes is fixedly connected to the low-pressure diluent input pipe. The bottom end of the connecting pipe is fixedly connected to the top of the throat fitting. Initially, the outer periphery of the piston rod can block the top of the connecting pipe.

[0007] Preferably, the bottom end of the tee pipe is flared, and the bottom of the piston rod is conical. In the initial state, the bottom end of the piston rod can block the flared part at the bottom of the tee pipe.

[0008] Preferably, the piston rod located inside the tee pipe has a plurality of supporting ribs arranged in an annular array on its outer periphery, and the outer periphery of the supporting ribs can contact the inner wall of the tee pipe.

[0009] Preferably, the inner wall of the cavity at the top of the larynx is an expansion surface, and a funnel surface is provided below the expansion surface; when the conical guide plate descends, the gap between its bottom outer edge and the expansion surface will increase.

[0010] Preferably, a funnel-shaped component is fixedly connected to the top of the cavity of the throat fitting, located above the conical guide plate, and a gap is left between the inner ring of the funnel-shaped component and the outer circumference of the three-way pipe, with the bottom end of the connecting pipe located above the funnel-shaped component.

[0011] Preferably, the throat fitting has a plurality of curved guide vanes fixedly connected in an annular array below the conical guide plate, and the curved guide vanes are arranged at an inclined direction at the junction of the expansion surface and the funnel surface.

[0012] Preferably, the piston rod has a vertical channel, and the bottom of the piston rod has a ring array of inclined channels that can communicate with the bottom of the vertical channel; in the initial state, the communication between the inclined channels and the throat cavity can be blocked by the bottom of the tee pipe.

[0013] Preferably, the bottom of the piston rod is rotatably connected to a diffuser plate located below the three-way pipe. The upper surface of the diffuser plate is a conical slope, and several arc-shaped guide ribs are provided on the conical slope. The tilt angle of the inclined channel is greater than the tilt angle of the diffuser plate, and the diluted liquid sprayed from the inclined channel can be output to the diffuser plate.

[0014] Preferably, a counterweight ring is fixed to the bottom of the diffusion disk.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: The above scheme involves introducing acid and diluent into a three-way pipe and a low-pressure diluent inlet pipe, respectively. The acid entering the three-way pipe forces the piston rod downwards and compresses the spring. As the piston rod descends, its tip gradually releases the seal on the top of the connecting pipe. At this point, the liquid in the low-pressure diluent inlet pipe enters the top of the throat fitting through the connecting pipe and is guided to the expansion surface by a conical guide plate. Subsequently, the liquid on the expansion surface covers the funnel surface and mixes with the acid output from the bottom of the three-way pipe. The mixed liquid is discharged through the bottom of the throat fitting. When the flow rate in the three-way pipe increases, the distance the piston rod descends increases, and the connection between the low-pressure diluent inlet pipe and the connecting pipe increases, thus achieving adaptive adjustment of the amount of acid and diluent injected. The above solution works by having the diluent injected into the throat pipe flow from the expansion surface to the funnel surface 112, passing through the curved guide plate and being guided by it, so that the diluent is spiral and covers the funnel surface. When the acid flows from the bottom of the three-way pipe to the funnel surface, the spirally flowing diluent will stir the acid, thus achieving a good mixing and dilution effect on the acid. When the acid is ejected from the bottom of the piston rod, it first impacts the diffuser plate and is guided by the arc-shaped guide ribs above the diffuser plate. The impact force of the ejected acid drives the diffuser plate to rotate, thereby dispersing the acid and allowing the dispersed acid to come into contact with the downward-flowing diluent, further improving the mixing effect and dilution efficiency of the acid. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the frontal planar structure of the present invention; Figure 3 This is a frontal perspective view of the present invention; Figure 4 This is a partial frontal cross-sectional view of the injector body of the present invention; Figure 5 This is a side cross-sectional view of the present invention; Figure 6 for Figure 5 Enlarged view of point A in the middle; Figure 7 for Figure 5 Enlarged view of point B in the middle; Figure 8 This is a schematic diagram of the adaptive flow regulation component and diffuser disk of the present invention.

[0017] In the diagram: 1. Injector body; 11. Throat fitting; 111. Expansion surface; 112. Funnel surface; 113. Funnel fitting; 114. Curved guide vane; 12. Low-pressure dilution liquid inlet pipe; 121. Connecting pipe; 13. T-junction pipe; 2. Adaptive flow regulation component; 21. Piston rod; 211. Support rib; 212. Vertical channel; 213. Inclined channel; 22. Spring; 23. Connecting rod; 24. Conical guide plate; 3. Diffuser disk; 31. Counterweight ring. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] like Figures 1 to 8 As shown, the present invention provides an adaptive flow rate regulation high-efficiency acid dilution injector, including an injector body 1, and further including: an adaptive flow rate regulation component 2 installed in the injector body 1; the injector body 1 includes a three-way pipe 13, a throat fitting 11 is fixedly sleeved at the bottom of the three-way pipe 13, the other two ends of the three-way pipe 13 are located outside the throat fitting 11, and a low-pressure diluent input pipe 12 is fixedly connected to one end of the top of the three-way pipe 13. The adaptive flow regulation component 2 includes a piston rod 21 vertically movably installed in a three-way pipe 13. Initially, the bottom end of the piston rod 21 can block the bottom end of the three-way pipe 13. The top end of the piston rod 21 extends into the low-pressure diluent input pipe 12 and is fitted with a spring 22. The top and bottom ends of the spring 22 are fixedly connected to the top ends of the piston rod 21 and the three-way pipe 13, respectively. A connecting rod 23 is fixedly connected to the top end of the piston rod 21, and the bottom end of the connecting rod 23 extends through the low-pressure diluent input pipe 12 into the throat component 11 and is fixedly fitted with a conical guide plate 24 movably fitted outside the low-pressure diluent input pipe 12. A gap is left between the bottom outer edge of the conical guide plate 24 and the inner wall of the throat component 11. A set of connecting pipes 121 is fixedly connected to the low-pressure diluent input pipe 12. The bottom end of the connecting pipe 121 is fixedly connected to the top of the throat fitting 11. Initially, the outer periphery of the top end of the piston rod 21 can block the top end of the connecting pipe 121. The bottom end of the tee pipe 13 is flared, and the bottom of the piston rod 21 is conical. In the initial state, the bottom end of the piston rod 21 can block the flared part at the bottom of the tee pipe 13. The piston rod 21 located inside the tee pipe 13 has a number of supporting ribs 211 arranged in a ring array on its outer periphery. The outer periphery of the supporting ribs 211 can contact the inner wall of the tee pipe 13.

[0020] Using the above scheme, acid and diluent are respectively introduced into the three-way pipe 13 and the low-pressure diluent input pipe 12. When the acid enters the three-way pipe 13, it will squeeze the piston rod 21 downward and cause the spring 22 to store and compress. When the piston rod 21 moves downward, its top will gradually release the blockage on the top of the connecting pipe 121. At this time, the liquid in the low-pressure diluent input pipe 12 will enter the top of the throat fitting 11 through the connecting pipe 121 and be guided to the expansion surface 111 by the conical guide plate 24. Then, the liquid on the expansion surface 111 will cover the surface of the funnel surface 112 and mix with the acid output from the bottom of the three-way pipe 13. The mixed liquid will be discharged through the bottom of the throat fitting 11. When the flow rate of the three-way pipe 13 increases, the downward distance of the piston rod 21 will increase, and the connection between the low-pressure diluent input pipe 12 and the connecting pipe 121 will increase, thereby realizing the adaptive adjustment of the amount of acid and diluent injected. It is worth noting that the elastic force of the spring 22 can support the piston rod 21 to maintain an upward trend and block the connection between the spring 22 and the connecting pipe 121.

[0021] like Figures 3-5 As shown, the inner wall of the cavity at the top of the throat fitting 11 is an expansion surface 111, and a funnel surface 112 is provided below the expansion surface 111; when the conical guide plate 24 moves downward, the gap between its bottom outer edge and the expansion surface 111 will increase. By adopting the above scheme, the expansion surface 111 is set so that when the conical guide plate 24 is descending, the gap between the bottom outer edge of the conical guide plate 24 and the expansion surface 111 will increase. Correspondingly, the amount of acid discharged from the bottom end of the three-way pipe 13 and the amount of spring 22 injected into the throat fitting 11 through the connecting pipe 121 will also increase. This will increase the thickness of the diluent flowing downward on the inner wall of the throat fitting 11 to ensure that the acid can be mixed better.

[0022] like Figures 3-5 As shown, a funnel 113 is fixed to the top of the cavity of the throat fitting 11, which is located above the conical guide plate 24. A gap is left between the inner ring of the funnel 113 and the outer circumference of the three-way pipe 13 to ensure that the diluted liquid can more stably cover the surface of the conical guide plate 24 when it flows to the conical guide plate 24. The bottom end of the connecting pipe 121 is located above the funnel 113. The throat fitting 11 has a number of curved guide vanes 114 fixed in an annular array below the conical guide plate 24. The curved guide vanes 114 are arranged at an inclined direction at the junction of the expansion surface 111 and the funnel surface 112. Using the above scheme, when the diluent injected into the throat fitting 11 flows from the expansion surface 111 to the funnel surface 112, it will first pass through the curved guide plate 114 and be guided by it, so that the diluent is spiral and covers the funnel surface 112. When the acid flows from the bottom of the three-way pipe 13 to the funnel surface 112, the diluent flowing downward in a spiral will play a stirring role on the acid, thereby achieving a good mixing and dilution effect on the acid.

[0023] like Figures 3-8 As shown, a vertical channel 212 is provided on the piston rod 21, and a number of inclined channels 213 that can communicate with the bottom of the vertical channel 212 are arranged in an annular array at the bottom of the piston rod 21; in the initial state, the communication between the inclined channel 213 and the cavity of the throat fitting 11 can be blocked by the bottom of the three-way pipe 13. The bottom of the piston rod 21 is rotatably connected to a diffuser 3 located below the three-way pipe 13. The upper surface of the diffuser 3 is a conical slope, and several arc-shaped guide ribs are provided on the conical slope. The tilt angle of the inclined channel 213 is greater than that of the diffuser 3, and the diluted liquid sprayed out in the inclined channel 213 can be output onto the diffuser 3; a counterweight ring 31 is fixed to the bottom of the diffuser 3. Using the above scheme, when the acid is sprayed out through the bottom of the piston rod 21, the acid will first hit the diffuser 3 and be guided by the arc-shaped guide ribs above the diffuser 3. At this time, the impact force of the acid spray will drive the diffuser 3 to rotate, thereby dispersing the acid and allowing the dispersed acid to come into contact with the diluent flowing downwards, further improving the mixing effect and dilution efficiency of the acid. Furthermore, the vertical channel 212 allows some of the diluted liquid in the spring 22 to be sprayed onto the diffuser plate 3 through the inclined channel 213. During this process, some of the diluted liquid will first be pre-mixed with the acid liquid gap discharged from the bottom of the three-way pipe 13, and then mixed with the diluted liquid injected into the throat fitting 11 through the connecting pipe 121 after being rotated and dispersed by the diffuser plate 3. This method effectively improves the mixing effect of the acid liquid.

[0024] Working principle and usage process of this invention: In use, acid and diluent are introduced into the three-way pipe 13 and the low-pressure diluent inlet pipe 12, respectively. When the acid enters the three-way pipe 13, it will squeeze the piston rod 21 downward and cause the spring 22 to store and compress. When the piston rod 21 moves downward, its top will gradually release the blockage on the top of the connecting pipe 121. At this time, the liquid in the low-pressure diluent inlet pipe 12 will enter the top of the throat fitting 11 through the connecting pipe 121 and be guided to the expansion surface 111 by the conical guide plate 24. Then, the liquid on the expansion surface 111 will cover the surface of the funnel surface 112 and mix with the acid output from the bottom of the three-way pipe 13. The mixed liquid will be discharged through the bottom of the throat fitting 11. When the flow rate of the three-way pipe 13 increases, the distance that the piston rod 21 moves downward will increase. At the same time, the connection between the low-pressure diluent inlet pipe 12 and the connecting pipe 121 will increase, thereby realizing the adaptive adjustment of the amount of acid and diluent injected. When the diluent injected into the throat fitting 11 flows from the expansion surface 111 to the funnel surface 112, it first passes through the curved guide plate 114 and is guided by it, which causes the diluent to form a spiral shape and cover the funnel surface 112. When the acid flows from the bottom of the three-way pipe 13 to the funnel surface 112, the diluent flowing downward in a spiral shape will play a stirring role on the acid, thereby achieving a good mixing and dilution effect on the acid. When the acid is ejected from the bottom of the piston rod 21, it will first hit the diffuser 3 and be guided by the arc-shaped guide ribs above the diffuser 3. At this time, the impact force of the acid will drive the diffuser 3 to rotate, thereby dispersing the acid and allowing the dispersed acid to come into contact with the diluent flowing downwards, further improving the mixing effect and dilution efficiency of the acid.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0026] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency acid dilution injector with adaptive flow rate regulation, comprising an injector body (1), characterized in that, Also includes: Adaptive flow control component (2) installed in the injector body (1); The injector body (1) includes a three-way pipe (13), a throat fitting (11) is fixedly sleeved at the bottom of the three-way pipe (13), the other two ends of the three-way pipe (13) are located outside the throat fitting (11), and a low-pressure diluent input pipe (12) is fixedly connected to one end of the top of the three-way pipe (13). The adaptive flow regulating component (2) includes a piston rod (21) vertically movably installed in a three-way pipe (13). Initially, the bottom end of the piston rod (21) can block the bottom end of the three-way pipe (13). The top end of the piston rod (21) extends into the low-pressure diluent input pipe (12) and is fitted with a spring (22). The top and bottom ends of the spring (22) are fixedly connected to the top ends of the piston rod (21) and the three-way pipe (13), respectively. A connecting rod (23) is fixedly connected to the top end of the piston rod (21), and the bottom end of the connecting rod (23) extends through the low-pressure diluent input pipe (12) into the throat fitting (11) and is fixedly fitted with a conical guide plate (24) movably fitted outside the low-pressure diluent input pipe (12). A gap is left between the bottom outer edge of the conical guide plate (24) and the inner wall of the throat fitting (11). A set of connecting pipes (121) is fixedly connected to the low-pressure diluent input pipe (12). The bottom end of the connecting pipe (121) is fixedly connected to the top of the throat fitting (11). Initially, the outer periphery of the piston rod (21) can block the top end of the connecting pipe (121).

2. The high-efficiency acid dilution injector with adaptive flow rate regulation according to claim 1, characterized in that: The bottom end of the three-way pipe (13) is flared, and the bottom of the piston rod (21) is conical. In the initial state, the bottom end of the piston rod (21) can block the flared part at the bottom of the three-way pipe (13).

3. The high-efficiency acid dilution injector with adaptive flow rate regulation according to claim 1, characterized in that: The piston rod (21) located inside the tee pipe (13) has a number of supporting ribs (211) arranged in an annular array on its outer periphery. The outer periphery of the supporting ribs (211) can contact the inner wall of the tee pipe (13).

4. The high-efficiency acid dilution injector with adaptive flow regulation according to claim 1, characterized in that: The inner wall of the cavity at the top of the larynx (11) is an expansion surface (111), and a funnel surface (112) is provided below the expansion surface (111). When the conical guide plate (24) moves downward, the gap between its bottom outer edge and the expansion surface (111) will increase.

5. The high-efficiency acid dilution injector with adaptive flow regulation according to claim 4, characterized in that: The top of the cavity of the throat fitting (11) is fixedly connected to a funnel fitting (113) located above the conical guide plate (24). There is a gap between the inner ring of the funnel fitting (113) and the outer circumference of the three-way pipe (13). The bottom end of the connecting pipe (121) is located above the funnel fitting (113).

6. The high-efficiency acid dilution injector with adaptive flow regulation according to claim 4, characterized in that: The throat component (11) has a number of curved guide vanes (114) fixed in an annular array below the conical guide plate (24). The curved guide vanes (114) are arranged at an inclined direction at the junction of the expansion surface (111) and the funnel surface (112).

7. The high-efficiency acid dilution injector with adaptive flow regulation according to claim 6, characterized in that: The piston rod (21) has a vertical channel (212) and the bottom of the piston rod (21) has a number of inclined channels (213) that can communicate with the bottom of the vertical channel (212). In the initial state, the connection between the inclined channel (213) and the cavity of the throat fitting (11) can be blocked by the bottom of the three-way pipe (13).

8. The high-efficiency acid dilution injector with adaptive flow regulation according to claim 7, characterized in that: The bottom of the piston rod (21) is rotatably connected to a diffuser (3) located below the three-way pipe (13). The upper surface of the diffuser (3) is a conical slope, and several arc-shaped guide ribs are provided on the conical slope. The tilt angle of the inclined channel (213) is greater than that of the diffuser (3), and the diluted liquid sprayed from the inclined channel (213) can be output to the diffuser (3).

9. The high-efficiency acid dilution injector with adaptive flow regulation according to claim 8, characterized in that: A counterweight ring (31) is fixed to the bottom of the diffusion disk (3).

Images