Vertical type oil separator

Abstract

The invention provides a vertical type oil separator which comprises a vertical type barrel (4), an air inlet pipe (2), an air outlet pipe (7) and an oil separation assembly. The air inlet pipe (2) is arranged at the upper end of the vertical type barrel (4), the air outlet pipe (7) is arranged at the lower end of the vertical type barrel (4), and therefore a stroke from top to bottom is formed inside the vertical type barrel (4). The oil separation assembly comprises a centrifugal oil separator body and a filtration type oil separator body, wherein the centrifugal oil separator body and the filtration type oil separator body are arranged in an up-and-down mode. According to the vertical type oil separator, the treatment process combining rotation centrifugal force with refined filtration is comprehensively utilized, the kinetic energy of gas is utilized fully, most large-diameter oil drops are removed under the condition that resistance is not augmented, the requirement for a fine filtration period is lowered, the oil-gas separation process is thorough, and the oil separation effect is improved under the condition that the size of the barrel and the resistance are not increased.

Description

technical field [0001] The invention belongs to the structural field of oil separators for air-conditioning and refrigeration system accessories, in particular to a vertical oil separator. Background technique [0002] In the refrigeration system, when the compressor is working, a small amount of refrigerated oil must be continuously pressed out together with the refrigerant and enter the pipeline of the refrigeration system, the condenser and the evaporator. When the refrigerating oil cannot be continuously returned to the compressor, the oil level of the compressor will drop, until the refrigerating oil is exhausted, and the compressor will burn due to lack of oil. Therefore, it is one of the most important issues in the design of the refrigeration system to ensure that the refrigerated oil is continuously returned to the compressor, and reducing the amount of refrigerated oil entering the system can improve the refrigeration efficiency of the unit and ensure the safe ...

AI Technical Summary

Problems solved by technology

In addition, in the practical process, the mixture of refrigeration oil and refrigerant gas is unevenly distributed when it enters and exits the oil separator, resulting in a high flow rate of the mixed gas in some areas, which affects the separation effect

[0005] Chinese Patent Publication No. CN101738034 discloses an invention patent application for "high-efficiency vertical oil separator device and its use method", which proposes a vertical oil separator combining centrifugal and fine filtration, but its centrifugal oil separation and The main operating space for filtering and separating oil overlaps, which makes the treatment process of oil-gas mixture shorter, which is not conducive to the separation of refrigerated oil as a whole, and the inlet of this oil separator is very close to the fine filter device, and the gas is easy to short circuit, resulting in the separation effect becomes worse, and when the load decreases and the gas flow rate decreases, the centrifugal force is obviously insufficient, resulting in the deterioration of the separation effect

The oil separator of this utility model adopts secondary oil separation, that is, filter oil separation and block oil separation, and the processing space of the secondary oil separation is staggered, that is, the filter device and the oil retaining device are arranged up and down, and there is enough space to a certain extent. The oil separation treatment space makes the oil separation effect more obvious, but because the filter device is set at the upper end, that is, the oil-gas mixture enters the filter device immediately after entering the intake pipe, and the inlet of the oil separator is also very close to the filter device, so the gas It is easy to short circuit, leading to defects such as poor separation effect, and because the filter device is often suitable for separating relatively small oil droplets, and the gas-oil mixture that has just entered from the intake pipe contains more refrigerated oil, the filter device is used directly Oil separation, firstly affects the overall oil separation effect, and secondly, after a period of use, more impurities such as oil film will adhere to the filter device, which not only aggravates the gas short circuit, but also further affects the oil separation effect

[0007] And some other patents of centrifugal oil separators are also equipped with filter layers, but usually their volume is small, the cross-sectional flow velocity is high, and it only plays the role of stabilizing the air flow and controlling the flow direction of the gas, and its ability to separate small-diameter oil droplets is very good. limited

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