A separator in a refrigeration system and its refrigeration system

A refrigeration system and separator technology, which is applied in refrigerators, refrigeration components, refrigeration and liquefaction, etc., can solve the problems of reducing the heat exchange effect of condensers and evaporators, affecting refrigeration effects, and large fluctuations in liquid level, etc., to avoid Effects of dry grinding phenomenon, improved service life, and reduced filling volume

Active Publication Date: 2019-09-06
哈尔滨雪谷制冷设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In various fields such as production, life, refrigeration, etc., refrigeration systems are often involved. In the refrigeration cycle system of compressors, lubricating oil needs to be added to lubricate, seal and cool down the compressor. It is a mixture of refrigerant and lubricating oil. The presence of lubricating oil will reduce the heat transfer effect of the condenser and evaporator, thereby affecting the cooling effect. If the amount of lubricating oil is insufficient, the compressor will stop or even be damaged. ; Therefore, the refrigeration system at this stage is equipped with an oil separator or a low-pressure circulation barrel, and a part of the lubricating oil in the oil or oil-vapor mixture can be diverted back to the compressor by using the low-pressure circulation barrel to achieve the purpose of returning oil to the compressor , but because the specific gravity of the lubricating oil is smaller than that of the refrigerant (such as Freon), the lubricating oil floats on the upper layer of the liquid refrigerant. Therefore, the existing separator or low-pressure circulation barrel generally uses the oil-rich layer in the barrel to extract oil, that is, in the One or more oil return holes with different heights are set on the outer wall of the container. When the oil level is just at the corresponding oil return hole, the oil in the container is led out to the compressor through the oil return pipeline to realize the oil return. For example, the document "Freon barrel pump combination unit" (application number 201420215173.0), "a Freon circulation barrel combination device" (application number 201620446732.8), "carbon dioxide, Freon refrigeration system barrel pump unit combined oil return device" (application number 201720133359.5), etc.; However, when the low-pressure circulation barrel is in normal operation, various factors will cause the liquid level in the barrel to fluctuate greatly. For example, Freon will produce a "boiling" physical effect from high pressure to low pressure, and the mixed liquid in the barrel will not appear relative Stable state, and due to the fixed position of the oil return hole, when the liquid level of the oil layer is lower or higher than the oil return hole, the oil cannot be returned or the purity of the oil return is low, and it cannot provide enough lubricating oil for the compressor Therefore, it is very easy for the refrigeration system to stop refrigeration or the compressor to be damaged, which increases the work intensity of the personnel, and the use of lubricating oil remains high and the refrigeration effect is not satisfactory.

Method used

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  • A separator in a refrigeration system and its refrigeration system
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  • A separator in a refrigeration system and its refrigeration system

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Experimental program
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specific Embodiment approach 1

[0034] Specific implementation mode 1, such as figure 1 As shown, the separator in a refrigeration system of the present invention and its refrigeration system include a main body 1, which is provided with an oil-liquid mixture inlet 101, a refrigerant liquid outlet 102, and a liquid level controller. The main body 1 is equipped with The first separation chamber 2, the upper end surface of the first separation chamber 2 is flared, the bottom end surface of the first separation chamber 2 is provided with a liquid outlet 202 and an oil return pipe 3 is installed, and one end of the oil return pipe 3 is suspended on the first In the separation chamber 2, the other end is directly or indirectly connected to the oil-using equipment; the "flare" is a relatively large opening, such as the relatively large entrance at the upper end of the funnel, the notch at the upper end of the rectangular tank, the upper opening of the bucket, etc. In short, the upper end of the first separation ch...

specific Embodiment approach 2

[0035] Specific implementation mode 2, such as figure 2 As shown, the first separation chamber 2 is a rectangular oil collection tank, which can adapt to the internal shape of the main body 1 and maximize the oil storage capacity of the first separation chamber 2. In addition, it can also be designed differently according to the shape and operation mode of the main body 1. The shape of the first separation chamber 2, for example, the first separation chamber 2 in the vertical oil separator can be changed to a cylindrical shape.

specific Embodiment approach 3

[0036] Specific implementation mode 3, such as image 3 As shown, the difference from the specific embodiment 1 is that: the first separation chamber 2 also includes a liquid outlet pipe 203, and the liquid outlet pipe 203 is installed at the lower end of the liquid outlet 202; wherein the liquid outlet pipe 203 is used for the first The refrigerant liquid at the bottom layer in the separation chamber 2 is preferentially discharged, and directly mixed with the refrigerant liquid in the main body 1, so that the refrigerant liquid at the bottom layer in the first separation chamber 2 can be preferentially discharged from the first separation chamber 2, so that the oil return pipe can The lubricating oil in the upper layer is sucked preferentially, and the boiling oil-liquid mixture is prevented from being poured into the first separation chamber 2.

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Abstract

The invention relates to a separator in a refrigerating system and a refrigerating system thereof, belongs to the technical field of refrigerating equipment, and aims to solve the problems that an existing oil separator which returns oil at points cannot return oil continuously and stably and is low in oil return purity. A first separation room is mounted in a main body, the upper end surface of the first separation room is a flaring, a liquid outlet is formed in the bottom end surface of the first separation room and an oil return pipe is mounted on the bottom end surface, and one end of theoil return pipe is suspended in the first separation room while the other end of the oil return pipe is directly or indirectly connected to oil consumption equipment. The separator in the refrigerating system and the refrigerating system thereof provided by the invention can achieve oil return all around, and the oil return amount tends to be stable and the oil return purity is high.

Description

technical field [0001] The invention relates to a separator, in particular to a separator in a refrigeration system and the refrigeration system thereof, and belongs to the technical field of refrigeration equipment. Background technique [0002] In various fields such as production, life, refrigeration, etc., refrigeration systems are often involved. In the refrigeration cycle system of compressors, lubricating oil needs to be added to lubricate, seal and cool down the compressor. It is a mixture of refrigerant and lubricating oil. The presence of lubricating oil will reduce the heat transfer effect of the condenser and evaporator, thereby affecting the cooling effect. If the amount of lubricating oil is insufficient, the compressor will stop or even be damaged. ; Therefore, the refrigeration system at this stage is equipped with an oil separator or a low-pressure circulation barrel, and a part of the lubricating oil in the oil or oil-vapor mixture can be diverted back to t...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): F25B43/00
Inventor初海涛
Owner哈尔滨雪谷制冷设备有限公司