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A controller for a vapour compression system and a method for controlling a vapour compression system

A vapor compression and controller technology, applied in the field of controllers, can solve problems such as inability to obtain evaporation temperature, pressure sensor falling off, hindering control, etc.

Inactive Publication Date: 2015-01-28
DANFOSS AS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because such a pressure sensor may fall off or fail, the evaporating temperature may not be available, which may further impede control of the refrigerant supply to the evaporator until the pressure sensor returns to normal

Method used

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  • A controller for a vapour compression system and a method for controlling a vapour compression system
  • A controller for a vapour compression system and a method for controlling a vapour compression system
  • A controller for a vapour compression system and a method for controlling a vapour compression system

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Embodiment Construction

[0049] It should be understood that the detailed description and specific examples, while indicating embodiments of the invention, are given by way of illustration only, since those skilled in the art will understand the spirit and scope of the invention from this detailed description. various changes and modifications.

[0050] figure 1 A vapor compression system 1 for cooling a refrigerated space is shown. The system 1 comprises a circuit in which refrigerant circulates between a compressor 2 , a condenser 3 and an evaporator 4 . The system 1 also comprises an expansion valve 5 for controlling the flow of the refrigerant into the evaporator and thereby controlling the cooling of the refrigerated space.

[0051] The system 1 comprises a controller 6 adapted to control the expansion based on a first temperature T1 between the evaporator 4 and the compressor 2 in the circuit and a second temperature T2 determined in the refrigerated space valve 5. The second temperature T2 ...

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PUM

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Abstract

The invention discloses a controller for a vapour compression system for cooling a refrigerated space. The system comprises a circuit for circulation of a refrigerant between a compressor (2), a condenser (3), and an evaporator (4). An expansion valve (5) controls a flow of the refrigerant into the evaporator (4) and thereby cooling of the refrigerated space. The control system is adapted to control the expansion valve (5) based on a first temperature (Tl) in the circuit between the evaporator (4) and the compressor (2) and a second temperature (T2) determined in the refrigerated space.

Description

technical field [0001] The present invention relates to a controller for a vapor compression system for cooling a refrigerated space. The system includes a circuit for circulating refrigerant between the compressor, condenser and evaporator. An expansion valve is provided to control the flow of the refrigerant into the evaporator and thereby control the cooling of the refrigerated space. Background technique [0002] Vapor compression systems, such as refrigeration systems, air conditioning systems or heat pumps, usually consist of a compressor, a condenser, an expansion device and an evaporator installed in a refrigerant circuit. Refrigerant circulates in the refrigerant circuit, is alternately expanded and compressed, and heat exchange occurs in the condenser and evaporator. The expanded refrigerant enters the evaporator as a gas-liquid mixed refrigerant. As the refrigerant passes through the evaporator, it evaporates while exchanging heat with a second fluid flow (eg, ...

Claims

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Application Information

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IPC IPC(8): F25B41/06
CPCF25B2700/21173F25B2600/01F25B2600/2513F25B2700/21151F25B41/062F25B2700/2104F25B41/34F25B49/02
Inventor 罗兹贝·伊扎迪-扎马纳巴迪哈拉尔德·阿尔诺尔
Owner DANFOSS AS