Middle ring of air suction ring

Abstract

The utility model relates to the technical field of exhaust devices, and provides an air suction ring middle ring which comprises a ring middle ring body, a mounting groove is formed in the top of the ring middle ring body, an exhaust groove is formed in the ring middle ring body at the bottom end of the mounting groove, and exhaust holes are evenly formed in the ring middle ring body at the bottom end of the exhaust groove. According to the utility model, the 54 exhaust holes are uniformly distributed, the exhaust holes are arc waist holes with the diameter of 6mm, and compared with the previous 108 arc waist holes with the diameter of 4mm, the research and development cost and the manufacturing time are saved, the research and development of lower pressure of the reaction chamber are realized, the exhaust pipeline of equipment is also stable, the exhaust efficiency of the main suction pump is greatly improved, and the service life of the main suction pump is prolonged. The air suction ring middle ring has the functions of stably exhausting air and improving the air extraction efficiency, and the working efficiency of the air suction ring middle ring in the using process is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of exhaust devices, and particularly relates to a middle ring of an air suction ring. Background Art

[0002] With the continuous development of industries, medical treatment, aerospace and other fields, the demand for air suction flow technology is increasing day by day. Traditional exhaust hoods mainly rely on simple air suction flow, but the suction speed decays relatively fast and the control effect is limited. The middle ring of the air suction ring can optimize the air flow distribution, improve the air suction efficiency and make the exhaust pipe more stable. Therefore, it is necessary to design a middle ring of an air suction ring.

[0003] The existing middle ring of the air suction ring has more exhaust round holes. When in use, the exhaust pipe is affected by the air flow and is not stable enough. Therefore, it is necessary to design a middle ring of an air suction ring. Content of the Utility Model

[0004] The purpose of the utility model is to provide a middle ring of an air suction ring to solve the defect that the existing middle ring of the air suction ring has more exhaust round holes and the exhaust pipe is affected by the air flow and is not stable enough when in use.

[0005] To solve the above technical problems, the utility model provides the following technical solution: a middle ring of an air suction ring, including a middle ring body;

[0006] An installation groove is opened at the top of the middle ring body;

[0007] An exhaust groove is opened inside the middle ring body at the bottom end of the installation groove, and exhaust holes are evenly opened inside the middle ring body at the bottom end of the exhaust groove;

[0008] An anti-corrosion structure is fixed on the outer wall of the middle ring body. The anti-corrosion structure includes an adhesive layer, a first anti-corrosion layer and a second anti-corrosion layer. The adhesive layer is fixed on the outer wall of the middle ring body, the first anti-corrosion layer is fixed on the outer side of the adhesive layer, and the second anti-corrosion layer is fixed on the outer side of the first anti-corrosion layer.

[0009] Further, a limiting groove is opened at one side of the bottom of the middle ring body far away from the exhaust holes.

[0010] Further, the exhaust holes are evenly distributed inside the middle ring body, and there are fifty-four groups of exhaust holes.

[0011] Further, the top view section of the exhaust hole is designed in a kidney shape, and the inner diameter size of the exhaust hole is 6mm.

[0012] Further, the first anti-corrosion layer is an epoxy resin anti-corrosion coating layer.

[0013] Further, the second anti-corrosion layer is a polyurethane anti-corrosion coating layer.

[0014] Furthermore, the front view cross-section of the exhaust groove is designed in an arc shape.

[0015] An advantage of the middle ring of the suction ring provided by the present utility model is as follows:

[0016] By providing exhaust holes, the exhaust holes are arc waist holes with a diameter of 6 mm, and there are a total of 54 evenly distributed. Compared with the previous 108 arc waist holes with a diameter of 4 mm, the R & D cost and manufacturing time are saved, the R & D of a lower pressure in the reaction chamber is solved, the exhaust pipeline of the equipment is stable, the air extraction efficiency of the main air extraction pump is greatly improved, the functions of stable exhaust and improved air extraction efficiency of the device are realized, and the working efficiency of the middle ring of the suction ring during use is improved;

[0017] By providing an anti-corrosion structure, the first anti-corrosion layer is an epoxy resin anti-corrosion coating layer, which has the characteristics of strong adhesion, acid resistance, alkali resistance and low shrinkage rate. The second anti-corrosion layer is a polyurethane anti-corrosion coating layer, which has the characteristics of acid resistance, alkali resistance, oil resistance, water resistance and good wear resistance. The function of preventing the outer wall of the middle ring body from being corroded is realized, and the service life of the middle ring of the suction ring is improved. Description of the Drawings

[0018] Figure 1 It is a three-dimensional overall structure schematic diagram of the present utility model;

[0019] Figure 2 It is a front view sectional structure schematic diagram of the present utility model;

[0020] Figure 3 For the present utility model Figure 2 The enlarged structure schematic diagram at A;

[0021] Figure 4 It is a three-dimensional front view sectional structure schematic diagram of the present utility model;

[0022] Figure 5 It is a top view sectional structure schematic diagram of the present utility model.

[0023] Explanation of the reference numerals in the drawings: 1. Middle ring body; 2. Exhaust hole; 3. Limit groove; 4. Anti-corrosion structure; 41. Adhesive layer; 42. First anti-corrosion layer; 43. Second anti-corrosion layer; 5. Exhaust groove; 6. Installation groove. Detailed Embodiment

[0024] 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 the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0025] Please refer to Figures 1-5 , an inner ring of an air suction ring provided by the present utility model includes an inner ring body 1.

[0026] Referring to Figures 1-5 , an installation groove 6 is opened at the top of the inner ring body 1. An exhaust groove 5 is opened inside the inner ring body 1 at the bottom end of the installation groove 6. Exhaust holes 2 are evenly opened inside the inner ring body 1 at the bottom end of the exhaust groove 5. The exhaust holes 2 are equally spaced inside the inner ring body 1. There are fifty-four groups of exhaust holes 2. The top view cross-section of the exhaust holes 2 is designed in a waist shape. The inner diameter of the exhaust holes 2 is 6 mm. A limiting groove 3 is opened on one side of the bottom of the inner ring body 1 away from the exhaust holes 2. The front view cross-section of the exhaust groove 5 is designed in an arc shape.

[0027] The exhaust holes 2 are arc waist holes with a diameter of 6 mm, a total of 54 evenly distributed. Compared with the previous 108 arc waist holes with a diameter of 4 mm, it saves the R & D cost and manufacturing time, solves the R & D of lower pressure in the reaction chamber, the equipment exhaust pipeline is also stable, and the pumping efficiency of the main pump is greatly improved.

[0028] Referring to Figures 1-5 , an anti-corrosion structure 4 is fixed on the outer wall of the inner ring body 1. The anti-corrosion structure 4 includes an adhesive layer 41, a first anti-corrosion layer 42 and a second anti-corrosion layer 43. The adhesive layer 41 is fixed on the outer wall of the inner ring body 1. The first anti-corrosion layer 42 is fixed on the outer side of the adhesive layer 41. The second anti-corrosion layer 43 is fixed on the outer side of the first anti-corrosion layer 42. The first anti-corrosion layer 42 is an epoxy resin anti-corrosion coating layer, and the second anti-corrosion layer 43 is a polyurethane anti-corrosion coating layer.

[0029] The first anti-corrosion layer 42 is an epoxy resin anti-corrosion coating layer, which has the characteristics of strong adhesion, acid resistance, alkali resistance and low shrinkage rate. The second anti-corrosion layer 43 is a polyurethane anti-corrosion coating layer, which has the characteristics of acid resistance, alkali resistance, oil resistance, water resistance and good wear resistance.

[0030] Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. An air intake ring-in-ring, comprising a ring-in-ring body (1); Features: The top of the ring-in-ring body (1) is provided with a mounting groove (6); An exhaust groove (5) is provided inside the ring-in-ring body (1) at the bottom end of the installation groove (6), and exhaust holes (2) are evenly provided inside the ring-in-ring body (1) at the bottom end of the exhaust groove (5); An anti-corrosion structure (4) is fixed on the outer wall of the ring-in-ring body (1), and the anti-corrosion structure (4) includes an adhesive layer (41), a first anti-corrosion layer (42) and a second anti-corrosion layer (43). The adhesive layer (41) is fixed on the outer wall of the ring-in-ring body (1), the first anti-corrosion layer (42) is fixed on the outer side of the adhesive layer (41), and the second anti-corrosion layer (43) is fixed on the outer side of the first anti-corrosion layer (42).

2. The suction ring according to claim 1, characterized in that: A limiting groove (3) is provided on a side of the bottom of the ring-in-ring body (1) away from the exhaust hole (2).

3. The suction ring according to claim 1, characterized in that: The exhaust holes (2) are distributed at equal intervals inside the ring-in-ring body (1), and fifty-four groups of the exhaust holes (2) are provided.

4. The suction ring according to claim 1, characterized in that: The top-view cross-section of the exhaust hole (2) is waist-shaped, and the inner diameter of the exhaust hole (2) is 6 mm.

5. The suction ring according to claim 1, characterized in that: The first anti-corrosion layer (42) is an epoxy resin anti-corrosion coating layer.

6. The suction ring according to claim 1, characterized in that: The second anti-corrosion layer (43) is a polyurethane anti-corrosion coating layer.

7. The suction ring according to claim 1, characterized in that: The main cross-section of the exhaust groove (5) is designed to be arc-shaped.

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