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Magnetic suspension water cooling unit and lithium bromide cold and heat pump unit double running system and method

A technology of water chiller and operation method, which is applied in the direction of machine operation, refrigerator, refrigeration and liquefaction, etc., and can solve the problem of low heating temperature of magnetic levitation water chiller, inability to provide cooling and hot water at the same time, and low energy efficiency ratio of rated load and other issues, to achieve the effect of large-scale adjustable cooling capacity and heating capacity, remarkable energy-saving effect, and saving electricity and water.

Inactive Publication Date: 2017-02-15
BROAD AIR CONDITIONING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Existing maglev chillers have a very high part-load energy efficiency ratio, usually at part-load IPLV, the energy efficiency ratio COP is over 10, but the rated load energy efficiency ratio (COP=6 or so) is not outstanding
In addition, the heating temperature of the magnetic levitation chiller is low (generally not exceeding 60°C), and it cannot provide cooling and hot water at the same time
[0003] The lithium bromide absorption chiller and warm water unit can cool and supply heat at the same time, the heating temperature is high, but the heating efficiency is low, usually the COP is around 0.93

Method used

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  • Magnetic suspension water cooling unit and lithium bromide cold and heat pump unit double running system and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Such as figure 1 Shown: a dual-operation system of a magnetic levitation chiller and a lithium bromide cooling and heat pump unit, including a magnetic levitation chiller and a lithium bromide absorption heat pump unit, the lithium bromide absorption heat pump unit includes a first evaporator and an absorber, and the magnetic levitation chiller includes a second evaporator and the condenser; the heat exchange tube of the first evaporator enters the return water of the cooling tower, the water outlet of the heat exchange tube in the first evaporator is connected to the water inlet of the heat exchange tube in the condenser, and the outlet of the heat exchange tube in the condenser The cooling water output from the nozzle returns to the cooling tower again for recycling. The air outlet of the first evaporator is connected to the air inlet of the absorber; hot water is input into the heat exchange tube of the absorber for return or replenishment.

[0026] The water inlet ...

Embodiment 2

[0034] The difference from Example 1 is that the lithium bromide absorption heat pump unit is replaced by a lithium bromide absorption cold and warm water unit.

[0035] The specific principle is the same as that in Embodiment 1, and will not be repeated here.

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Abstract

The invention discloses a magnetic suspension water cooling unit and lithium bromide cold and heat pump unit double running system and method. The method includes the steps that return water of a cooling tower enters a heat exchange pipe of a first evaporator of a lithium bromide cold and heat pump unit; cryogen water of the lithium bromide cold and heat pump unit suddenly evaporates, and cooling water in the heat exchange pipe in the first evaporator is cooled; the cooled cooling water enters a condenser heat exchange pipe of a magnetic suspension water cooling unit; and refrigerant steam in a condenser generates heat and is liquefied, the cooling water is heated and returns to the cooling tower again, and circulating refrigerating is performed in this way. The invention further discloses the magnetic suspension water cooling unit and lithium bromide cold and heat pump unit double running system. By means of the magnetic suspension water cooling unit and lithium bromide cold and heat pump unit double running system and method, the cooling efficiency is improved, heat in the cooling process is also utilized, and the purpose of performing refrigerating and heating at the same time is achieved.

Description

technical field [0001] The invention relates to the technical field of air-conditioning equipment, in particular to a dual-operation system and method of a magnetic levitation chiller unit and a lithium bromide cold-heat pump unit. Background technique [0002] Existing maglev chillers have a very high part-load energy efficiency ratio. Usually, the energy efficiency ratio COP is more than 10 at part-load IPLV, but the rated load energy efficiency ratio (COP=6 or so) is not outstanding. In addition, the heating temperature of the maglev chiller is low (generally not exceeding 60°C), and it cannot provide cooling and hot water at the same time. [0003] The lithium bromide absorption chiller and warm water unit can cool and supply heat at the same time. The heating temperature is high, but the heating efficiency is low, and the COP is usually around 0.93. Contents of the invention [0004] The purpose of the present invention is to overcome the above-mentioned deficiencies...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B29/00F25B15/06
CPCF25B15/06F25B29/006Y02B30/62Y02A30/27
Inventor 张跃
Owner BROAD AIR CONDITIONING CO LTD
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