Oil separator capable of filtering smaller oil drops

Abstract

The utility model provides an oil separator capable of filtering smaller oil drops, which comprises an oil separator body, a separation cavity is arranged in the oil separator body, an oil return pipe is vertically arranged in the separation cavity, and a needle valve is arranged at the bottom of the oil return pipe. According to the scheme, through the arrangement of the multiple layers of filter screens, the number of holes in the surfaces of the filter screens and the number of layers can be changed, refrigeration oil contained in a refrigerant can be filtered more thoroughly, through the changeable filter screens, the adaptability and the universality of the device are wider, oil liquid with smaller particles can be filtered, and the device is more convenient to use. The refrigerant oil separation efficiency is improved, and meanwhile refrigerant oil separation is more thorough.

Description

Technical Field

[0001] The utility model relates to the technical field of oil separators, in particular to an oil separator capable of filtering even smaller oil droplets. Background Art

[0002] The size of liquid particles that can be carried by the steam flow is related to the speed of the steam flow. If the steam flow speed when the lift generated by the vertical upward movement of the steam flow is balanced with the weight of the particles is called the equilibrium speed, and is represented by the symbol ω. Obviously, when the steam flow speed is equal to the equilibrium speed, the particles remain motionless in the steam flow; if the steam flow speed is greater than the equilibrium speed, the particles will be taken away; and when the steam flow speed is less than the equilibrium speed, the particles will fall down, thereby separating the oil droplets from the refrigerant steam flow.

[0003] When the high-pressure refrigerant gas discharged from the compressor enters the separator, due to the large flow cross-section, the gas flow rate suddenly decreases and changes direction. In addition, the filtering effect of several layers of metal wire mesh during air intake separates the lubricating oil mixed in the gas refrigerant and drips down to gather at the bottom of the container. When the amount of accumulated lubricating oil reaches a certain height, it returns to the compressor crankcase through the automatic oil return valve.

[0004] The key to precision purification in the oil separator lies in the filter installed inside it. The setting of the filter can directly affect the working efficiency of the oil separator. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the deficiencies of the prior art, the utility model provides an oil separator capable of filtering even smaller oil droplets, thereby solving the problems raised in the above-mentioned background technology.

[0007] (II) Technical solution

[0008] To achieve the above objectives, the utility model is implemented through the following technical solutions: an oil separator capable of filtering even smaller oil droplets, comprising an oil separator body, a separation chamber being provided in the oil separator body, an oil return pipe being vertically provided in the separation chamber, and a needle valve being provided at the bottom of the oil return pipe.

[0009] Preferably, a floating ball that can be raised and lowered is provided in the separation chamber.

[0010] Preferably, a top cover for sealing is installed on the top of the oil separator body.

[0011] Preferably, two guide tubes are fixedly provided at the top end of the top cover, and an inlet and an outlet are welded at the top end of the guide tubes.

[0012] Preferably, a filter screen is installed at the lower part of the guide tube.

[0013] Preferably, a plurality of the filter screens are arranged in the guide tube, and the plurality of filter screens are connected by supporting rods.

[0014] Preferably, the filter screen is provided with a plurality of small holes which are connected vertically.

[0015] (III) Beneficial effects

[0016] The utility model provides an oil separator capable of filtering even smaller oil droplets. It has the following beneficial effects:

[0017] 1. This solution uses a multi-layer filter screen, and can filter the refrigerant oil more thoroughly by changing the number of holes on the filter screen surface and the number of layers. The changeable filter screen makes the device more adaptable and versatile, and can filter smaller particles of oil, thereby improving the efficiency of refrigerant oil separation and making the refrigerant oil separation more thorough. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the appearance structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the main structure of the utility model;

[0020] Figure 3 This is a front view structural schematic diagram of the utility model;

[0021] Figure 4 For this utility model Figure 3 Sectional view in the AA direction;

[0022] Figure 5 This is a schematic diagram of the appearance structure of the filter screen component of the utility model;

[0023] Figure 6 This is the front view of the appearance structure of the filter screen component of the utility model.

[0024] In the figure: 101, oil separator body; 102, inlet and outlet; 103, filter screen; 104, oil return pipe; 105, float; 106, needle valve; 107, guide pipe; 108, support rod; 109, separation chamber; 110, top cover. DETAILED DESCRIPTION

[0025] The utility model provides an oil separator capable of filtering even smaller oil droplets, such as Figure 1-6 As shown, it includes an oil separator body 101 , a separation chamber 109 is arranged in the oil separator body 101 , an oil return pipe 104 is vertically arranged in the separation chamber 109 , and a needle valve 106 is arranged at the bottom of the oil return pipe 104 .

[0026] Furthermore, a floating ball 105 capable of rising and falling is provided in the separation chamber 109 .

[0027] Furthermore, a top cover 110 for sealing is installed on the top of the oil separator body 101 .

[0028] Furthermore, two guide tubes 107 are fixedly provided at the top of the top cover 110 , and an inlet and outlet 102 are welded at the top of the guide tubes 107 .

[0029] Furthermore, a filter screen 103 is installed at the lower part of the guide tube 107 .

[0030] Furthermore, a plurality of filter screens 103 are disposed in the guide tube 107 , and the plurality of filter screens 103 are connected via a supporting rod 108 .

[0031] Furthermore, the filter screen 103 is provided with a plurality of small holes that are connected to each other vertically.

[0032] It should be further explained that a plurality of filter screens 103 can be installed on the outer end of the support rod 108 , and the oil separation and filtration effect can be promoted through the small holes of different densities on the surface of the filter screen 103 .

[0033] It is worth noting that the filter 103 is a three-layer filter with 40 meshes, which is different from the traditional one-layer filter with 100 meshes, and can further enhance the oil separation effect of blocking the oil.

[0034] When using this solution, first connect the oil separator to the output pipeline of the lubricating oil, and the high-pressure refrigerant gas discharged from the compressor enters the separator. At this time, due to the different densities of the lubricating oil and the refrigerant vapor, and the sudden expansion of the channel cross-section during input, the air flow velocity drops sharply. Since the diameter of the oil separator is 3 to 15 times larger than the diameter of the high-pressure exhaust pipe, the flow velocity of the vapor after entering the oil separator drops from the original 10 to 25 m / s to 0.8 to 1 m / s, and the flow direction is changed at the same time, so that the lubricating oil with a higher density is separated and deposited at the bottom of the oil separator. In this process, when the flow velocity of the internal gas suddenly decreases and changes direction, when the gas enters through the guide pipe 107, the multi-layer filter screen 103 in the guide pipe 107 is set to filter, that is, the lubricating oil mixed in the gas refrigerant is separated, and drips downward and gathers at the bottom of the separation chamber 109. When the amount of gathered lubricating oil reaches a certain height, the lubricating oil is returned to the compressor crankcase through the needle valve 106.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An oil separator capable of filtering even smaller oil droplets, characterized in that: The oil separator comprises an oil separator body (101), wherein a separation chamber (109) is arranged in the oil separator body (101), an oil return pipe (104) is vertically arranged in the separation chamber (109), and a needle valve (106) is arranged at the bottom of the oil return pipe (104).

2. An oil separator capable of filtering even smaller oil droplets according to claim 1, characterized in that: A floating ball (105) is arranged in the separation chamber (109).

3. The oil separator capable of filtering even smaller oil droplets according to claim 1, characterized in that: A top cover (110) for sealing is installed on the top of the oil separator body (101).

4. The oil separator capable of filtering even smaller oil droplets according to claim 3, characterized in that: Two guide tubes (107) are fixedly provided at the top end of the top cover (110), and an inlet and outlet (102) are welded at the top end of the guide tubes (107).

5. The oil separator capable of filtering even smaller oil droplets according to claim 4, characterized in that: A filter screen (103) is installed at the lower part of the guide tube (107).

6. The oil separator capable of filtering even smaller oil droplets according to claim 5, characterized in that: A plurality of the filter screens (103) are arranged below the guide tube (107), and the plurality of filter screens (103) are connected via a supporting rod (108).

7. An oil separator capable of filtering even smaller oil droplets according to claim 6, characterized in that: The filter screen (103) is provided with a plurality of small holes that are connected to each other vertically.

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