Water chilling unit

A technology of water chiller and refrigerant, which is applied in the direction of refrigerators, refrigeration components, compressors, etc., can solve the problems of poor energy saving, and achieve the effect of satisfying perennial refrigeration, good energy saving effect, and reduced output

Active Publication Date: 2013-04-10
EMERSON NETWORK POWER CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The technical problem to be solved by the pres...

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Embodiment Construction

[0035] The water chiller of the present invention is suitable for various application occasions such as computer room, medical treatment, food production, operating room, pharmaceutical manufacturing, chemical production and the like. The water chiller of the present invention comprises a brine main circuit and a refrigerant circuit, wherein the brine main circuit includes a dry cooler connected in series by a brine pipeline, a brine heat-absorbing heat exchanger, a first booster pump, and a number of control valves; the refrigerant circuit includes a compressor, an evaporator, an expansion valve and a condenser connected in series by the refrigerant pipeline, wherein the evaporator and the condenser are double-inlet and double-out heat exchangers, each of which includes a refrigeration A refrigerant channel and a brine channel, when the refrigerant and the brine flow in it, heat exchange can be performed, wherein, in the evaporator, the refrigerant expands and absorbs heat to ...

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Abstract

The invention relates to a water chilling unit. The water chilling unit comprises a refrigerating medium major loop, a freezing medium loop, a refrigerating medium bypass, a control module, and at least one transition season mode. A dry cooler, a refrigerating medium absorbing heat exchanger, a first booster pump, a control valve and the like are connected through a refrigerating medium pipeline in series to form the refrigerating medium major loop. A compressor, an evaporimeter, an expanding valve, a condenser and the like are connected through a freezing medium pipeline in series to form the freezing medium loop. The refrigerating medium bypass which is connected with the refrigerating medium major loop is provided with a second booster pump. The control module controls operation of the water chilling unit. In the transition season mode, the freezing medium loop runs, the refrigerating medium bypass runs, one part of refrigerating medium flowing from the refrigerating medium absorbing heat exchanger flows through the refrigerating medium bypass and then is mixed with the other part of the refrigerating medium. The mixture flows through the dry cooler and the evaporimeter, and returns to the refrigerating medium absorbing heat exchanger. The water chilling unit has the advantages of taking full advantage of outdoor environment as a cold source, reducing output of the compressor, having good energy-saving effect, and meeting requirements of perennial refrigeration.

Description

technical field [0001] The present invention relates to a refrigeration system, more specifically, to a chiller. Background technique [0002] Chillers are a common cooling source for air conditioning. With the development of economy and social progress, some applications put forward higher requirements for this type of units, requiring them to operate all year round and provide sufficient cooling capacity. These applications are mainly in computer rooms, medical treatment, food production, operating rooms, pharmaceutical manufacturing, chemical production, etc. Usually, the room needs to be refrigerated when the outdoor temperature is -20°C, which affects whether the chiller can operate at low temperature for a long time. normal operation presents challenges. Especially for water-cooled chillers, which use a cooling tower to cool the water and then cool the refrigerant, which is greatly affected by the climate and environment, and cannot guarantee operation in an outdoor l...

Claims

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Application Information

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IPC IPC(8): F25B1/00F25B41/00F25B49/02
Inventor 王峰马臻任冰
Owner EMERSON NETWORK POWER CO LTD
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