Box type condensing unit
By designing a box-type condensing unit and using flow control valves and other components to regulate the pressure at the compressor inlet and outlet, the problem of improper refrigerant charging under special operating conditions was solved, thus improving the adaptability and operational stability of the equipment.
Patent Information
- Application Number
- CN202520130794.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-20
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2035-01-20
AI Technical Summary
Existing refrigeration equipment has difficulty balancing the refrigerant charge under special operating conditions, resulting in a small pressure difference between high and low pressures, which affects the stable operation of the compressor. At the same time, excessive refrigerant under high-temperature conditions leads to insufficient cooling capacity and increased power consumption.
Design a box-type condensing unit. By installing flow control valves at the compressor inlet and outlet, combined with an oil-gas separator, condenser, and storage tank, the pressure at the inlet and outlet can be regulated to adapt to different operating conditions.
It enables the adjustment of compressor inlet and outlet pressures without adding extra burden, adapting to more operating conditions and improving the stability and efficiency of refrigeration equipment.
Smart Images
Figure CN223755599U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of refrigeration equipment, concretely relates to a box type condensing unit. BACKGROUND
[0002] At present, the refrigeration of refrigeration equipment is mostly applied to ordinary working conditions, and the charging amount of refrigerant is only for charging under normal temperature or high temperature working condition refrigeration. When encountering special working conditions, for example, when the cold liquid unit is low temperature refrigeration, due to the high water temperature of the evaporation side, the low pressure is high, and the condensing side environment temperature is very low, so that the high pressure is low, at this time, the high and low pressure difference is small, which is not conducive to the stable operation of the compressor refrigeration system. At this time, some measures need to be taken to increase the refrigeration high pressure to increase the high and low pressure difference of the refrigeration system, and artificial charging of refrigerant during low temperature refrigeration has become a common practice, but when the equipment is in high temperature working condition, the refrigerant in the system is more, which will also bring the problems of insufficient refrigerating capacity and increased power consumption, etc. Therefore, it is necessary to design a refrigeration equipment with automatic refrigerant charging amount balance for application in wide working condition environment. SUMMARY
[0003] The utility model aims at providing a box type condensing unit, and the specific technical scheme is as follows:
[0004] A box type condensing unit, comprising: a compressor, a low pressure gauge is arranged at the inlet end of the compressor, a high pressure gauge is arranged at the outlet end of the compressor, the inlet end and the outlet end of the compressor are communicated through a flow control valve outside, and the flow control valve is used for adjusting the pressure of the inlet end and the outlet end of the compressor; an oil-gas separator, the inlet end of the oil-gas separator is communicated with the outlet end of the compressor, and the oil-gas separator is used for separating high-temperature and high-pressure gas-phase coolant discharged from the outlet end of the compressor; a condenser, the inlet end of the condenser is communicated with the gas-phase outlet end of the oil-gas separator, and the condenser is used for condensing the separated high-temperature and high-pressure gas-phase coolant; and a storage tank, the inlet end of the storage tank is communicated with the outlet end of the condenser, and the storage tank is used for storing the refrigerant condensed.
[0005] An inlet stop valve is arranged between the inlet end of the compressor and the connection position of the inlet end of the compressor and the outlet end in external communication, and an outlet stop valve is arranged between the outlet end of the compressor and the connection position of the outlet end of the compressor and the inlet end in external communication. A sight glass is arranged at the outlet end of the storage tank and used for observing the liquid level in the storage tank. A drying filter is arranged at the outlet end of the storage tank and used for filtering impurities in the refrigerant discharged from the storage tank.
[0006] The above technical scheme of the utility model has the following beneficial technical effects: the inlet end and the outlet end of the compressor are communicated through the flow control valve outside, so that the pressure of the inlet end and the outlet end can be adjusted without increasing additional burden, and the refrigeration equipment can adapt to more working conditions. BRIEF DESCRIPTION OF DRAWINGS
[0007] Figure 1 is a structural schematic view of the utility model;
[0008] Among them: 1-compressor, 2-oil-gas separator, 3-condenser, 4-storage tank, 5-low pressure gauge, 6-high pressure gauge, 7-flow control valve, 8-inlet stop valve, 9-outlet stop valve, 10-liquid mirror, 11-dry filter. DETAILED DESCRIPTION
[0009] In order to make the purpose, technical scheme and advantages of the utility model more clear and obvious, the utility model is further explained in detail below in combination with specific implementation manners and with reference to the drawings. It should be understood that these descriptions are only exemplary, and are not intended to limit the scope of the utility model. In addition, in the following description, the description of the known structure and technology is omitted to avoid unnecessary confusion of the concept of the utility model.
[0010] A box type condensing unit, comprising: compressor 1, the compressor 1 import end is provided with low pressure gauge 5, the compressor 1 export end is provided with high pressure gauge 6, the compressor 1 import end and export end are communicated outside through flow control valve 7, for adjusting the pressure of the import end and export end of compressor 1;Oil-gas separator 2, the import end of oil-gas separator 2 is communicated with the export end of compressor 1, for separating out the high-temperature high-pressure gas phase coolant discharged from the export end of compressor 1;Condenser 3, the import end of condenser 3 is communicated with the gas phase export end of oil-gas separator 2, for condensing the separated high-temperature high-pressure gas phase coolant;Storage tank 4, the import end of storage tank 4 is communicated with the export end of condenser 3, for storing the condensed refrigerant. By connecting the import end and export end of compressor 1 outside through flow control valve 7, the pressure of the import end and export end can be adjusted without increasing additional burden, so that the refrigeration equipment can adapt to more working conditions.
[0011] The import end of compressor 1 is provided with inlet stop valve 8 between the import end and the import end connecting position of the import end and export end communicated outside, and the export end of compressor 1 is provided with outlet stop valve 9 between the export end and the export end connecting position of the import end and export end communicated outside. The export end of storage tank 4 is provided with liquid mirror 10 for observing the liquid level in storage tank 4. The export end of storage tank 4 is provided with dry filter 11 for filtering impurities in the refrigerant discharged from storage tank 4.
Claims
1. A packaged condensing unit characterized by, Comprise: A compressor (1) provided with a low pressure gauge (5) at the inlet end, a high pressure gauge (6) at the outlet end, and a flow control valve (7) at the inlet end and the outlet end for adjusting the pressure at the inlet end and the outlet end of the compressor (1); An oil-gas separator (2) connected to the outlet end of the compressor (1) for separating the high temperature and high pressure gas phase coolant discharged from the outlet end of the compressor (1); A condenser (3) connected to the gas phase outlet end of the oil-gas separator (2) for condensing the separated high temperature and high pressure gas phase coolant; A storage tank (4) connected to the outlet end of the condenser (3) for storing the condensed refrigerant.
2. The packaged condensing unit of claim 1, wherein, An inlet stop valve (8) is provided between the inlet end of the compressor (1) and the connection position of the inlet end of the compressor (1) and the outlet end of the compressor (1) for external communication; 3. The packaged condensing unit of claim 1, wherein, An outlet stop valve (9) is provided between the outlet end of the compressor (1) and the connection position of the outlet end of the compressor (1) and the inlet end of the compressor (1) for external communication.
4. The packaged condensing unit of claim 1, wherein, A sight glass (10) is provided at the outlet end of the storage tank (4) for observing the liquid level in the storage tank (4). A drying filter (11) is provided at the outlet end of the storage tank (4) for filtering impurities in the refrigerant discharged from the storage tank (4).