Jet device of dissolved air tank of air flotation machine

Abstract

The utility model discloses an air floatation machine dissolved air tank jet device which comprises a nozzle, a filter pipe is fixedly installed at the water inlet end of the nozzle, a fixing ring is integrally arranged in the filter pipe, an abutting frame located on one side of the fixing ring is integrally arranged in the filter pipe, an installation ring is fixedly installed in the middle of the fixing ring in a sealed mode, and the installation ring is provided with an air inlet. A water inlet pipe is integrally arranged in the middle of the mounting ring, an inner supporting pipe is integrally arranged at the other end of the water inlet pipe, the inner supporting pipe is sleeved with filter cotton, the filter cotton is sleeved with a sleeve, the tail end of the sleeve and the tail end of the inner supporting pipe are integrally connected with a backflow cylinder, and a filter plate is fixedly mounted at the tail end of the backflow cylinder. After being filtered by the filter cotton arranged between the inner supporting pipe and the sleeve, the water flows into the reflux cylinder, the reflux cylinder buffers the water flow and filters the water flow again by the filter plate, and then the water flow is sprayed out through the nozzle, so that blockage is avoided, and normal operation of the sewage treatment system is not influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of ejectors, in particular to an ejector for a dissolved air tank of a dissolved air flotation machine. Background Technique

[0002] In the field of sewage treatment, whether it is domestic sewage, reclaimed water treatment, or the treatment of various industrial wastewaters, most of them are organic wastewaters. And the treatment of organic wastewaters is inseparable from the biochemical process. The biochemical process, whether it is the traditional activated sludge method or other various aerobic processes, is inseparable from aeration equipment.

[0003] Jet aeration uses a high-pressure water pump to generate jet flow and negative pressure through a throat pipe to suck air into the water. When the diameter of the throat pipe is smaller, the aeration effect is good and the efficiency is high. However, in the process of use, the too-thin throat pipe is easily blocked by impurities, which in turn causes the ejector to fail.

[0004] Therefore, we propose an ejector for a dissolved air tank of a dissolved air flotation machine. Content of the Utility Model

[0005] The purpose of the utility model is to provide an ejector for a dissolved air tank of a dissolved air flotation machine to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: An ejector for a dissolved air tank of a dissolved air flotation machine includes a nozzle. A filter pipe is fixedly installed at the water inlet end of the nozzle. A fixing ring is integrally arranged inside the filter pipe. A pressing frame is integrally arranged inside the filter pipe on one side of the fixing ring. An installation ring is hermetically and fixedly installed in the middle of the fixing ring. A water inlet pipe is integrally arranged in the middle of the installation ring. The other end of the water inlet pipe is integrally provided with an inner support pipe. A filter cotton is sleeved outside the inner support pipe. A sleeve is sleeved outside the filter cotton. The ends of the sleeve and the inner support pipe are integrally connected to a reflux cylinder. A filter plate is fixedly installed at the end of the reflux cylinder. The end of the filter plate is tightly pressed against the pressing frame.

[0007] Optionally, an inhalation chamber is fixedly installed outside the water outlet of the nozzle. An air suction pipe is integrally arranged at the top of the inhalation chamber. The other end of the inhalation chamber is integrally provided with a throat pipe. The end of the throat pipe is integrally provided with a diffuser pipe.

[0008] Optionally, the fixing ring, the water inlet pipe, the sleeve and the filter plate are coaxially arranged. A plurality of uniformly distributed through holes are provided on the sides of the inner support pipe and the sleeve.

[0009] Optionally, one end of the sleeve close to the installation ring is integrally connected to the end of the water inlet pipe. The ends of the sleeve and the inner support pipe are integrally connected to the bottom of the reflux cylinder.

[0010] Optionally, a connecting column is integrally provided at the end of the backflow cylinder, and the backflow cylinder is fixedly installed with the filter plate through the provided connecting column.

[0011] Optionally, the length of the backflow cylinder is less than the length of the sleeve, and the length of the sleeve is the same as the length of the inner support pipe.

[0012] Optionally, the outer peripheral surface of the filter plate is in sealed and tightly abutted contact with the inner wall of the filter pipe. The inner diameter of the fixing ring is greater than the diameter of the filter plate, and the diameter of the filter plate is greater than the diameter of the backflow cylinder.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] For this air flotation machine dissolved air tank injector, by providing a filter pipe, when water flows through the filter pipe, it first enters the water inlet pipe, then enters the inner support pipe, and after being filtered by the filter cotton provided between the inner support pipe and the sleeve, it flows into the backflow cylinder. The backflow cylinder buffers the water flow, and the filtered water flow is filtered again by the filter plate and then sprayed out through the nozzle. The impurities in the filtered water flow are reduced, and blockage will not occur under normal operation, without affecting the normal operation of the sewage treatment system. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of an air flotation machine dissolved air tank injector of the present utility model;

[0016] Figure 2 It is a schematic diagram of the structure of the filter pipe of an air flotation machine dissolved air tank injector of the present utility model;

[0017] Figure 3 It is a schematic diagram of the structure of the water inlet pipe of an air flotation machine dissolved air tank injector of the present utility model.

[0018] In the figure: 1, nozzle; 2, suction chamber; 3, suction pipe; 4, throat pipe; 5, diffuser pipe; 6, filter pipe; 7, fixing ring; 8, abutting frame; 9, mounting ring; 10, water inlet pipe; 11, inner support pipe; 12, sleeve; 13, filter cotton; 14, backflow cylinder; 15, filter plate; 16, through hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0020] Please refer to Figures 1 to 3, the present utility model provides an air flotation machine dissolved air tank injector, which includes a nozzle 1. A filter pipe 6 is fixedly installed at the water inlet end of the nozzle 1. An inhalation chamber 2 is fixedly installed outside the water outlet of the nozzle 1. An air suction pipe 3 is integrally provided at the top of the inhalation chamber 2. The other end of the inhalation chamber 2 is integrally provided with a throat pipe 4. The end of the throat pipe 4 is integrally provided with a diffuser pipe 5. A fixing ring 7 is integrally provided inside the filter pipe 6. A pressing frame 8 is integrally provided inside the filter pipe 6 on one side of the fixing ring 7. An installation ring 9 is hermetically and fixedly installed in the middle of the fixing ring 7. A water inlet pipe 10 is integrally provided in the middle of the installation ring 9. The other end of the water inlet pipe 10 is integrally provided with an inner support pipe 11. A filter cotton 13 is sleeved outside the inner support pipe 11. A sleeve 12 is sleeved outside the filter cotton 13. The ends of the sleeve 12 and the inner support pipe 11 are integrally connected to a reflux cylinder 14. A filter plate 15 is fixedly installed at the end of the reflux cylinder 14. One end of the sleeve 12 close to the installation ring 9 is integrally connected to the end of the water inlet pipe 10. The ends of the sleeve 12 and the inner support pipe 11 are integrally connected to the bottom of the reflux cylinder 14. A connecting column is integrally provided at the end of the reflux cylinder 14. The reflux cylinder 14 is fixedly installed with the filter plate 15 through the provided connecting column. The length of the reflux cylinder 14 is less than the length of the sleeve 12. The length of the sleeve 12 is the same as the length of the inner support pipe 11. The end of the filter plate 15 is in pressing contact with the pressing frame 8. The fixing ring 7, the water inlet pipe 10, the sleeve 12 and the filter plate 15 are coaxially arranged. A plurality of uniformly distributed through holes 16 are provided on the side surfaces of the inner support pipe 11 and the sleeve 12. The outer peripheral surface of the filter plate 15 is in hermetic pressing contact with the inner wall of the filter pipe 6. The inner diameter of the fixing ring 7 is greater than the diameter of the filter plate 15. The diameter of the filter plate 15 is greater than the diameter of the reflux cylinder 14. By providing the filter pipe 6, when water flows through the filter pipe 6, it first enters the water inlet pipe 10, then enters the inner support pipe 11, and after being filtered by the filter cotton 13 provided between the inner support pipe 11 and the sleeve 12, it flows into the reflux cylinder 14. The reflux cylinder 14 buffers the water flow. The filtered water flow is filtered again by the filter plate 15 and then sprayed out through the nozzle 1. The impurities in the filtered water flow are reduced, and blockage will not occur under normal operation, which does not affect the normal operation of the sewage treatment system.

[0021] Working principle:

[0022] When water flows through the filter pipe 6, it first enters the water inlet pipe 10, then enters the inner support pipe 11, and after being filtered by the filter cotton 13 provided between the inner support pipe 11 and the sleeve 12, it flows into the reflux cylinder 14. The reflux cylinder 14 buffers the water flow. The filtered water flow is filtered again by the filter plate 15 and then sprayed out through the nozzle 1. The impurities in the filtered water flow are reduced, and blockage will not occur under normal operation, which does not affect the normal operation of the sewage treatment system.

[0023] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An air flotation machine dissolved air tank ejector, comprising a nozzle (1), characterized in that: A filter tube (6) is fixedly mounted on the water inlet end of the nozzle (1), a fixing ring (7) is integrally arranged inside the filter tube (6), a clamping frame (8) is integrally arranged inside the filter tube (6) and is located on one side of the fixing ring (7), a mounting ring (9) is sealingly fixedly mounted in the middle of the fixing ring (7), a water inlet pipe (10) is integrally arranged in the middle of the mounting ring (9), an inner support tube (11) is integrally mounted on the other end of the water inlet pipe (10), a filter cotton (13) is sleeved on the outside of the inner support tube (11), a sleeve (12) is sleeved on the outside of the filter cotton (13), a backflow tube (14) is integrally connected to the ends of the sleeve (12) and the inner support tube (11), a filter plate (15) is fixedly mounted on the end of the backflow tube (14), and the end of the filter plate (15) is tightly mounted on the clamping frame (8).

2. The air flotation machine dissolved air tank ejector according to claim 1, characterized in that: A suction chamber (2) is fixedly mounted outside the water outlet of the nozzle (1); an air intake pipe (3) is integrally provided at the top of the suction chamber (2); a throat pipe (4) is integrally provided at the other end of the suction chamber (2); and a diffusion pipe (5) is integrally provided at the end of the throat pipe (4).

3. The air flotation machine dissolved gas tank ejector according to claim 1, characterized in that: The fixing ring (7), the water inlet pipe (10), the sleeve (12) and the filter plate (15) are coaxially arranged, and the side surfaces of the inner support tube (11) and the sleeve (12) are provided with a plurality of evenly distributed through holes (16).

4. The air flotation machine dissolved air tank ejector according to claim 1, characterized in that: One end of the sleeve (12) close to the mounting ring (9) is integrally connected to the end of the water inlet pipe (10), and the ends of the sleeve (12) and the inner support pipe (11) are integrally connected to the bottom of the reverse flow cylinder (14).

5. The air flotation machine dissolved gas tank ejector according to claim 1, characterized in that: A connecting column is integrally provided at the end of the backflow cylinder (14), and the backflow cylinder (14) is fixedly mounted to the filter plate (15) via the provided connecting column.

6. The air flotation machine dissolved air tank ejector according to claim 1, characterized in that: The length of the reverse flow tube (14) is smaller than the length of the sleeve (12), and the length of the sleeve (12) is the same as the length of the inner support tube (11).

7. The air flotation machine dissolved gas tank ejector according to claim 1, characterized in that: The outer peripheral surface of the filter plate (15) is in sealing contact with the inner wall of the filter tube (6), the inner diameter of the fixing ring (7) is larger than the diameter of the filter plate (15), and the diameter of the filter plate (15) is larger than the diameter of the reflux tube (14).

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