Auxiliary equipment for refrigerating system
By designing auxiliary equipment in the steam refrigeration system, including oil separator, hot fluorine bypass valve and gas-liquid separator, the safety damage caused by high-temperature refrigerant steam drives lubricant oil discharge is solved, and the safe and efficient operation of the refrigeration system is achieved.
Patent Information
- Application Number
- CN202420370909.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-28
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-02-28
AI Technical Summary
During operation of the steam refrigeration system, the high-temperature refrigerant steam drives the discharge of lubricant oil, resulting in safety damage to the refrigeration system.
Design an auxiliary equipment for refrigeration systems, including an oil separator, a hot fluorine bypass valve and a gas-liquid separator, to separate oil in a steam refrigeration system, maintain the evaporator suction pressure, prevent icing, and provide additional Internal volume to store excess refrigerant liquid.
Through the use of the oil separator, ensure that there is no large amount of lubricating oil mixed in the refrigeration system to avoid safety damage; the hot fluorine bypass valve maintains the evaporator suction pressure to prevent icing; the gas-liquid separator provides additional volume to prevent refrigerant dilution, The overall guarantees the safe and efficient operation of the refrigeration system.
Smart Images
Figure CN222438210U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of refrigeration systems, in particular to auxiliary equipment for refrigeration systems. Background Art
[0002] A refrigeration system is a system that uses external energy to transfer heat from a substance (or environment) with a higher temperature to a substance (or environment) with a lower temperature. Its working principle is to exchange heat through state changes. A refrigeration system is generally composed of a refrigerant, a compressor, a condenser, an expansion valve, and an evaporator. It can be divided into a steam refrigeration system, an air refrigeration system, and a thermoelectric refrigeration system.
[0003] In a steam refrigeration system, the physical state of the refrigerant is generally adjusted through the cooperation between the compressor, condenser, expansion valve and evaporator, and the refrigeration function is realized by heat exchange. However, this steam refrigeration system has some defects during operation. For example, the refrigerant vapor after compression is in an overheated state of high pressure and high temperature. Due to its fast flow rate and high temperature when discharged, part of the lubricating oil on the cylinder wall of the compressor will inevitably become oil vapor and oil droplets due to the high temperature and be discharged together with the refrigerant vapor. The higher the exhaust temperature and the faster the flow rate, the more lubricating oil will be discharged. If a large amount of lubricating oil is mixed in the refrigerant, it will cause safety damage to the refrigeration system in the subsequent operation of the refrigeration system.
[0004] In view of the problems in the above background technology, the utility model aims to provide an auxiliary device for a refrigeration system. Utility Model Content
[0005] The purpose of the utility model is to provide an auxiliary device for a refrigeration system to solve the problems raised in the above background technology.
[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0007] A refrigeration system auxiliary device, the refrigeration system auxiliary device comprising:
[0008] A base, with shock-absorbing frames arranged and installed around the lower end of the base; a liquid reservoir, an oil separator, a gas-liquid separator and a compressor are installed on the upper end of the base, the outlet end of the compressor is connected to a pipeline, and the pipeline connected to the outlet end of the compressor extends into the oil separator;
[0009] The exhaust port at the upper end of the oil separator is connected to three pipelines respectively, two of which are equipped with solenoid valves; a hot fluorine bypass valve is also provided on the pipeline equipped with the solenoid valve.
[0010] As a further solution of the utility model: the pipeline equipped with the hot fluorine bypass valve is also connected to the inside of the liquid reservoir through a pipeline, and a drying filter is provided on the pipeline connected to the upper end of the liquid reservoir by the pipeline equipped with the hot fluorine bypass valve; one end of the pipeline equipped with the hot fluorine bypass valve extends into the gas-liquid separator.
[0011] Compared with the prior art, the beneficial effects of the utility model are:
[0012] The auxiliary equipment for the refrigeration system is provided with an oil separator during the operation of the steam refrigeration system through the following technical innovations. The installed oil separator is used to separate the oil and liquid of the high-temperature refrigerant vapor after being compressed and discharged by the compressor, so as to ensure the safe and efficient operation of the entire refrigeration system; at the same time, a hot fluorine bypass valve is provided. When the evaporator of the refrigeration system is under low load, the installed hot fluorine bypass valve can maintain the suction pressure, prevent the evaporator from freezing, and maintain better oil return performance; in addition, one end of the pipeline on which the hot fluorine bypass valve is installed is extended into the gas-liquid separator. The provided gas-liquid separator provides additional internal volume for the low-pressure side of the entire system, which can temporarily store excess refrigerant liquid and prevent excess refrigerant from flowing into the crankcase of the compressor to cause oil dilution;
[0013] Therefore, the auxiliary equipment for the refrigeration system can perform multiple protection functions during the operation of the entire refrigeration system, thereby ensuring the normal operation of the refrigeration system. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention.
[0015] Figure 1 The present invention is a schematic structural diagram of an auxiliary device for a refrigeration system according to an embodiment of the present invention.
[0016] In the figure: 1- shock absorber frame, 2- base, 3- liquid reservoir, 4- oil separator, 5- drying filter, 6- gas-liquid separator, 7- compressor, 8- solenoid valve, 9- hot fluorine bypass valve. DETAILED DESCRIPTION
[0017] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.
[0018] Example
[0019] See also Figure 1, an auxiliary device for a refrigeration system provided in an embodiment of the utility model, the auxiliary device for a refrigeration system comprising:
[0020] A base 2, the base 2 is used to support the auxiliary equipment for the entire refrigeration system; wherein shock-absorbing frames 1 are arranged and installed around the lower end of the base 2, and the installed shock-absorbing frames 1 are used to achieve buffering and shock absorption when the auxiliary equipment for the entire refrigeration system is running;
[0021] A liquid accumulator 3, an oil separator 4, a gas-liquid separator 6 and a compressor 7 are installed at the upper end of the base 2. The outlet end of the compressor 7 is connected to a pipeline, and the pipeline connected to the outlet end of the compressor 7 extends into the oil separator 4. The installed oil separator 4 is used to separate the oil and liquid of the high-temperature refrigerant vapor compressed and discharged by the compressor 7 to ensure the safe and efficient operation of the entire refrigeration system. In a steam compression refrigeration system, the compressed refrigerant vapor is in a high-pressure and high-temperature overheated state. Due to its fast flow rate and high temperature when discharged, part of the lubricating oil on the cylinder wall of the compressor will inevitably become oil vapor and oil droplets and particles discharged together with the refrigerant vapor due to the high temperature. The higher the exhaust temperature and the faster the flow rate, the more lubricating oil will be discharged. If a large amount of lubricating oil is mixed in the refrigerant, it will cause safety damage to the refrigeration system in the subsequent operation of the refrigeration system.
[0022] The exhaust port position at the upper end of the oil separator 4 is connected to three pipelines respectively, and solenoid valves 8 are installed on two of the pipelines. The installed solenoid valves 8 are used to control the discharge flow rate of refrigerant vapor after oil separation; at the same time, a hot fluorine bypass valve 9 is also provided on the pipeline installed with the solenoid valve 8. The set hot fluorine bypass valve 9 is suitable for a compressor refrigeration system without its own energy regulating device. When the evaporator of the refrigeration system is under low load, the installed hot fluorine bypass valve 9 can maintain the suction pressure, prevent the evaporator from freezing, and maintain better oil return performance; in addition, the pipeline installed with the hot fluorine bypass valve 9 is also connected to the inside of the liquid reservoir 3 through one pipeline, and a drying filter 5 is provided on the pipeline connected to the upper end of the liquid reservoir 3 by the pipeline installed with the hot fluorine bypass valve 9 ; The refrigerant vapor bypassed by the hot fluorine bypass valve 9 then enters the oil separator 4 for drying, and after drying, enters the liquid reservoir 3 through the pipeline, and is temporarily stored in the liquid reservoir 3 and the pressure of the entire pipeline is stabilized before being transported back to the refrigeration system for secondary use; at the same time, one end of the pipeline equipped with the hot fluorine bypass valve 9 extends into the gas-liquid separator 6, and the installed gas-liquid separator 6 is used to separate the refrigerant re-entering the compressor 7 through the return pipe and preserve the cooled refrigerant liquid; the set gas-liquid separator 6 provides additional internal volume for the low-pressure side of the entire system, which can temporarily store excess refrigerant liquid and also prevents excess refrigerant from flowing into the crankcase of the compressor 7 to cause oil dilution;
[0023] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0024] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. An auxiliary device for a refrigeration system, comprising: The base (2) has shock-absorbing frames (1) arranged and distributed around the lower end of the base (2); the characteristics are: A liquid storage device (3), an oil separator (4), a gas-liquid separator (6) and a compressor (7) are installed on the upper end of the base (2); the outlet end of the compressor (7) is connected to a pipeline, and the pipeline connected to the outlet end of the compressor (7) extends into the oil separator (4); the exhaust port position on the upper end of the oil separator (4) is respectively connected to three pipelines, wherein two pipelines are installed with electromagnetic valves (8); and a hot fluorine bypass valve (9) is also provided on the pipeline on which the electromagnetic valve (8) is installed.
2. The auxiliary device for a refrigeration system according to claim 1, characterized in that: The pipeline on which the hot fluorine bypass valve (9) is installed is also connected to the interior of the liquid reservoir (3) through a pipeline, and a drying filter (5) is provided on the pipeline connected to the upper end of the liquid reservoir (3) by the pipeline on which the hot fluorine bypass valve (9) is installed; one end of the pipeline on which the hot fluorine bypass valve (9) is installed extends into the interior of the gas-liquid separator (6).