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Direct cooling machine

A technology of direct cooling and chiller, which is applied in refrigerators, adsorption machines, refrigeration and liquefaction, etc. It can solve the problems that the heat of sewage and waste water cannot be effectively used, and the heat source cannot be driven by industrial sewage and waste water, so as to achieve easy deposition and realization The effect of concentration reduction

Pending Publication Date: 2020-09-04
HIT HARBIN INST OF TECH KINT TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to solve the problem that the existing absorption refrigerating units cannot use high-temperature industrial waste water as the driving heat source, resulting in the problem that the heat in the waste water cannot be effectively utilized, and further provides a direct cooling machine

Method used

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specific Embodiment approach 1

[0025] Specific implementation mode one: combine Figure 1~6 Describe this embodiment, direct cooling machine, it comprises condenser 1, generator 2, evaporator 3 and absorber 4, and the first vapor channel 5 is opened between condenser 1 and generator 2,

[0026] Described generator 2 comprises the lithium bromide solution cavity 2-1 that is positioned at the top and is positioned at the flash chamber 2-2 of lithium bromide solution cavity 2-1 below, and the top of generator 2 is communicated with and is provided with vacuum pump 6, by vacuum pump 6 generator 2 The interior is vacuumed, and the upper part of the lithium bromide solution chamber 2-1 is communicated with the lower part of the absorber 4 through the dilute lithium bromide solution pipe 7, and the dilute lithium bromide solution in the absorber 4 is transported to the lithium bromide solution chamber 2- through the dilute lithium bromide solution pipe 7. 1, the lower part of the lithium bromide solution chamber 2...

specific Embodiment approach 2

[0040] Specific implementation mode two: combination image 3 and 4 To illustrate this embodiment, the sewage water inlet pipe 9 is arranged vertically and its bottom end is located in the flash chamber 2-2. In this state, the sewage water inlet pipe 9 can pass through the lithium bromide solution chamber 2-1 and enter the flash chamber 2-2, or can be located on the side of the lithium bromide solution chamber 2-1, as long as it does not affect the steam entering the lithium bromide solution chamber 2 The first heat exchange tube 2-3 in -1 is sufficient.

[0041] The number of lithium bromide solution chambers 2-1 is two, and they are relatively arranged on both sides of the sewage water inlet pipe 9, and the flash steam enters the lithium bromide solution chamber 2-1 through the opposite sides of the two lithium bromide solution chambers 2-1. heat exchange.

[0042] Other compositions and connections are the same as those in the first embodiment.

specific Embodiment approach 3

[0043] Specific implementation mode three: combination Figure 1-4 To illustrate this embodiment, the waste water can be blast furnace slag flushing water, which is used as a heat source for refrigeration, and the cold water produced can be used for blast furnace blast cooling nearby, so as to condense the water vapor in the blast furnace blast to achieve blast furnace blast dehumidification. Purpose. Because there are a lot of salts dissolved in the blast furnace slag washing water, when the slag washing water releases heat to the outside, it is easy to crystallize and precipitate and adhere to the surface of the heat exchange wall, causing problems such as corrosion and blockage of the heat exchange face. The lithium bromide refrigerating unit of the present invention cannot utilize the residual heat of the slag flushing water to refrigerate, causing this part of heat to be wasted in vain. The direct cooler of the application can effectively solve the problems existing in th...

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Abstract

The invention discloses a direct cooling machine and belongs to the technical field of waste heat utilization. Through the direct cooling machine, the problems that high-temperature industrial wastewater cannot be utilized as a driving heat source of an existing absorption type refrigeration unit, and consequently heat in the wastewater cannot be effectively utilized are solved. A dilute lithium bromide solution in an absorber is conveyed into a lithium bromide solution cavity through a dilute lithium bromide solution pipe, the lower portion of the lithium bromide solution cavity communicateswith the upper portion of the absorber through a strong lithium bromide solution pipe, a strong lithium bromide solution formed in the lithium bromide solution cavity is conveyed into the absorber through the strong lithium bromide solution pipe, wastewater enters a flash evaporation chamber through communication of a wastewater inlet pipe, flash evaporation is conducted, steam obtained after flash evaporation moves upwards, heat exchange is conducted between the steam and the dilute lithium bromide solution in the lithium bromide solution cavity, a refrigerant water falling film of the dilutelithium bromide solution evaporates, evaporated steam enters the condenser through a first steam channel, and the wastewater obtained after flash evaporation is discharged from an evaporator througha wastewater withdrawing pipe.

Description

technical field [0001] The invention relates to a direct cooler and belongs to the technical field of waste heat utilization. Background technique [0002] In a variety of industrial production, refrigeration is required to cool certain process sections, and in summer or hot weather, it is necessary to provide cooling for buildings. Most of the refrigeration equipment used in industrial production with large cooling capacity and centralized cooling of buildings is Lithium bromide absorption refrigeration unit, due to the structural limitation of the traditional absorption refrigeration unit generator, the driving heat source of the existing absorption refrigeration unit is positive pressure steam or high-temperature clean hot water, instead of high-temperature industrial waste water As a driving heat source; however, there is a large amount of unclean high-temperature sewage in industrial production, and the heat in this part of the waste water is wasted because it cannot be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B15/06C02F1/06
CPCF25B15/06C02F1/048C02F1/06Y02A30/27Y02B30/62
Inventor 李金峰宋乃秋李伟张勇尚德敏黄伟成
Owner HIT HARBIN INST OF TECH KINT TECH
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