Oil separator capable of improving oil return reliability of press and reducing noise

Abstract

The oil separator comprises an oil separation pipe, an air inlet pipe, an exhaust pipe and an oil return pipe, one end of the air inlet pipe is inserted into the side face of the upper portion of the oil separation pipe and fixedly connected with the oil separation pipe, and one end of the exhaust pipe is inserted into the top of the oil separation pipe and fixedly connected with the oil separation pipe. One end of the oil return pipe is inserted into the side surface of the lower part of the oil separator and is fixedly connected with the oil separation pipe, the filter screen clamp is fixed in the middle of the oil separator, the filter screen is clamped on the filter screen clamp, the depth of the exhaust pipe inserted into the oil separator is L1, the length of L1 is 1 / 4L2, 1 / 3L2 or 1 / 2L2, and L2 is the length of the oil separator. The oil separator is small in size and high in oil separation efficiency, and has a good filtering function and a function of reducing flowing sound of a refrigerant.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning oil separator technology, and in particular to an oil separator that improves the reliability of compressor oil return and reduces noise. Background Technology

[0002] Current air conditioner oil separators are generally made of circular tubes with a certain diameter, and their length is selected according to the amount of oil output from the compressor. The oil-gas mixture enters the oil separator at high speed through the inlet, where it rotates rapidly. The liquid oil slows down and settles against the inner wall of the separator, while the gaseous refrigerant exits from the top. However, this type of oil separator does not filter impurities. Furthermore, when the gaseous refrigerant exits from the top, the abrupt change in cross-section creates vortices near the pipe opening, generating noise. Utility Model Content

[0003] This utility model provides an oil separator that improves the reliability of oil return from the press and reduces noise, mainly solving the problems of existing oil separators lacking filtration function and easily generating noise.

[0004] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: an oil separator for improving the reliability of oil return and reducing noise in a compressor, comprising an oil separation pipe, an air inlet pipe, an exhaust pipe, and an oil return pipe. One end of the air inlet pipe is inserted into the upper side of the oil separation pipe and fixedly connected to it. One end of the exhaust pipe is inserted into the top of the oil separation pipe and fixedly connected to it. One end of the oil return pipe is inserted into the lower side of the oil separation pipe and fixedly connected to it. Based on the existing technology, this utility model makes further improvements: it also includes a filter screen clamp and a filter screen. The filter screen clamp is made of a magnetic circular metal material and is fixed in the middle of the oil separation pipe. The filter screen is clipped onto the filter screen clamp. The exhaust pipe is inserted into the oil separation pipe to a depth of L1, and the length of L1 is 1 / 4L2, 1 / 3L2, or 1 / 2L2, where L2 is the length of the oil separation pipe.

[0005] Preferably, the diameter D2 of the intake pipe is 12.7-19.05 mm, and the end of the intake pipe inserted into the oil separator pipe is tapered.

[0006] Preferably, the welding angle A between the air intake pipe and the oil separator pipe is 5 to 45°.

[0007] Preferably, the diameter D4 of the exhaust pipe is 12.7-22.02 mm.

[0008] Preferably, the diameter D3 of the oil separator pipe is 45-66.68 mm.

[0009] Preferably, the mesh size of the filter screen is 60-100, and the distance L5 between the filter screen clamp and the end of the exhaust pipe inserted into the oil separator pipe is 20-40mm.

[0010] Preferably, the insertion depth of the intake pipe is L4, where L4 = D2 - 1 / 2D1, D2 is the diameter of the intake pipe 2, and D1 is the diameter of the oil separator pipe.

[0011] Compared with the prior art, the beneficial effects of this utility model are: the oil separator of this utility model is small in size, has high oil separation efficiency, and has a good filtering effect and reduces the noise of refrigerant flow. Attached Figure Description

[0012] Figure 1 This is a cross-sectional view of the oil separator of this utility model.

[0013] Figure 2 This is a top view of the oil separator of this utility model.

[0014] The diagram is labeled as follows: 1. Oil separator pipe; 2. Air inlet pipe; 3. Exhaust pipe; 4. Oil return pipe; 5. Filter clamp; 6. Filter. Detailed Implementation

[0015] The technical solutions of the present 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 the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Example

[0017] Please see Figure 1-2This utility model provides the following technical solution: an oil separator for improving the reliability of oil return and reducing noise in a compressor, comprising an oil separation pipe 1, an air inlet pipe 2, an exhaust pipe 3, an oil return pipe 4, a filter clamp 5, and a filter 6. One end of the air inlet pipe 2 is inserted into the upper side of the oil separation pipe 1 and fixedly connected to it. One end of the exhaust pipe 3 is inserted into the top of the oil separation pipe 1 and fixedly connected to it. One end of the oil return pipe 4 is inserted into the lower side of the oil separation pipe 1 and fixedly connected to it. The filter clamp 5 is fixed in the middle of the oil separation pipe 1, and the filter 6 is clamped onto the filter clamp 5. 5 is made of a magnetic circular metal material. If there are iron filings or other impurities in the refrigerant circulation system, they will first pass through the oil separator. If there are iron filings or other impurities in the gaseous refrigerant, they will be attracted to the clamps. The filter screen 6 will also filter out other impurities. Due to the large filtration area, the filter will not be completely clogged, preventing oil return and ultimately causing the compressor to be damaged due to lack of oil. According to fluid mechanics, swirling flow will occur at locations where the cross-section changes abruptly. The filter clamps 5 and filter screen 6 are positioned at a certain distance from the inlet of the exhaust pipe 2, which can reduce the vortex at the inlet and effectively reduce the refrigerant flow noise. The exhaust pipe 3 is inserted into the oil separator pipe 1 to a depth of L1, where L1 is 1 / 4L2, 1 / 3L2, or 1 / 2L2, and L2 is the length of the oil separator pipe 1. This not only avoids the compressor oil being directly discharged due to insufficient insertion depth, reducing oil separation efficiency, but also has a noise-dampening effect on the compressor exhaust system due to different insertion depths.

[0018] The diameter D2 of the intake pipe 2 is 12.7-19.05mm. The end of the intake pipe 2 that is inserted into the oil separator pipe 1 is a cone shape with a 45° angle. This shape allows more of the oil-gas mixture discharged from the compressor to flow out along the tip of the cone.

[0019] The insertion depth of the intake pipe 2 is L4, where L4 = D2 - 1 / 2D1, D2 is the diameter of the intake pipe 2, and D1 is the diameter of the oil separator pipe 1.

[0020] The welding angle A between the intake pipe and the oil separator pipe is 5 to 45°.

[0021] The diameter D4 of the exhaust pipe is 12.7-22.02mm, and the welding length L3 is 5-10mm.

[0022] The diameter D3 of the oil separator 1 ranges from 45 to 66.68 mm. The two ends of the oil separator 1 are tapered, and the side openings allow for pipe insertion and welding. The length L2 is 200-500 mm, and both the upper and lower ends are flat.

[0023] The diameter D3 of the oil return pipe 4 is 6.35-9.52mm, and the welding length L3 is 5-10mm. The oil return hole connecting the oil separator pipe 1 and the oil return pipe 4 is opened as low as possible in the oil separator pipe 1 to facilitate better oil return to the press.

[0024] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An oil separator for improving the reliability of oil return and reducing noise in a compressor, comprising an oil separation pipe, an inlet pipe, an outlet pipe, and an oil return pipe, wherein one end of the inlet pipe is inserted into the upper side of the oil separation pipe and fixedly connected to it; one end of the outlet pipe is inserted into the top of the oil separation pipe and fixedly connected to it; and one end of the oil return pipe is inserted into the lower side of the oil separation pipe and fixedly connected to it, characterized in that: It also includes a filter clamp and a filter. The filter clamp is made of a magnetic circular metal material. The filter clamp is fixed in the middle of the oil separator pipe. The filter is clipped onto the filter clamp. The depth to which the exhaust pipe is inserted into the oil separator pipe is L1. The length of L1 is 1 / 4L2, 1 / 3L2 or 1 / 2L2. L2 is the length of the oil separator pipe.

2. The oil separator for improving the reliability of press oil return and reducing noise according to claim 1, characterized in that: The diameter D2 of the intake pipe is 12.7-19.05mm, and the end of the intake pipe that is inserted into the oil separator pipe is tapered.

3. The oil separator for improving the reliability of press oil return and reducing noise according to claim 2, characterized in that: The welding angle A between the intake pipe and the oil separator pipe is 5~45°.

4. The oil separator for improving the reliability of press oil return and reducing noise according to claim 1, characterized in that: The diameter D4 of the exhaust pipe is 12.7-22.02 mm.

5. The oil separator for improving the reliability of press oil return and reducing noise according to claim 1, characterized in that: The diameter D3 of the oil separator pipe is 45-66.68 mm.

6. The oil separator for improving the reliability of press oil return and reducing noise according to claim 1, characterized in that: The mesh size of the filter screen is 60-100, and the distance L5 between the filter screen clamp and the end of the exhaust pipe inserted into the oil separator pipe is 20-40mm.

7. The oil separator for improving the reliability of press oil return and reducing noise according to claim 2, characterized in that: The insertion depth of the intake pipe is L4, where L4 = D2 - 1 / 2D1, D2 is the diameter of the intake pipe, and D1 is the diameter of the oil separator pipe.

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