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a chiller

A water chiller and condensate technology, which is applied in the direction of refrigerators, refrigeration components, mechanical equipment, etc., can solve the problems of unusable medium and low temperature heat sources, underutilized heat, and reduced energy utilization, so as to achieve easy access and improve cooling Efficiency, cleaning effect of combustion products

Active Publication Date: 2021-08-24
TENENG NATURAL GAS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The lithium bromide absorption chiller in the prior art has the following problems. First, it has high requirements on the grade of heat sources of high-temperature steam pipelines, and medium and low-temperature heat sources are often unusable, which means that the energy utilization rate will be greatly reduced; secondly, , after the internal lithium bromide of the chiller is condensed by circulation, it enters the absorber with temperature, and is cooled by the cooling water in the absorber, causing the heat to be not fully utilized; in addition, the condenser of the existing chiller uses the cooling water to cool the internal condensed water. Cooling, this cooling method requires a larger cooling tower, which has the problems of large footprint and high cost

Method used

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Experimental program
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Effect test

Embodiment 1

[0025] Such as figure 1 As shown, this embodiment provides a water chiller, including an evaporator 1, an absorber 2, a high-temperature generator 3, a low-temperature generator 4, and a cooling device 5. The specific structure is that the evaporator 1 is located inside the absorber 2, and The evaporator 1 communicates with the absorber 2 .

[0026] The absorber 2 of the water chiller communicates with the high-temperature generator 3 through the first circulation pipeline 6, the high-temperature generator 3 communicates with the low-temperature generator 4 through the second circulation pipeline 7, and the low-temperature generator 4 communicates with the third circulation pipeline 8 communicates with the absorber 2, and the above circulation constitutes a lithium bromide solution circulation pipeline.

[0027] Specifically, the evaporator 1 is provided with a cold water pipe 9, and the absorber 2 is provided with a cooling water pipe 10. The cold water pipe communicates wit...

Embodiment 2

[0040] On the basis of Embodiment 1, in this embodiment, two ends of the cooling water pipe 10 are connected to a set of cooling devices for cooling the cooling water. It can ensure that the chiller can continue to work without a large cooling tower.

[0041] Specifically, such as image 3 As shown, a second water pump 40 is added to the cooling water pipe 10 , and its two ends are respectively connected with the cooling coil 28 of the cooling device 5 .

[0042] It is well known that the lithium bromide solution in the absorber 2 will generate a large amount of heat after absorbing and diluting, and its water absorption effect will be reduced under high temperature environment. The cooling water pipe 10 is just used for cooling the diluted lithium bromide solution. In the present embodiment, the cooling water pipe 10 After the water absorbs heat, it is circulated to the cooling device 5 for cooling, and there is no need to configure a large cooling tower.

Embodiment 3

[0044] On the basis of Example 2, such as Figure 4 As shown, this embodiment is suitable for working conditions without an external heat source, and the heat supply pipeline is set as a circulation pipeline, and the heating device 15 is used to heat the heat supply pipeline. The details are as follows:

[0045] On the basis of Embodiment 2, the end of the water outlet pipe 13 away from the high-temperature heat dissipation pipe 11 is communicated with the water inlet pipe 12, and a third water pump 41 is provided on the water inlet pipe 12. In addition, the water inlet pipe 12 is also provided with a liquid replenishment port 18 .

[0046] The principle is that when there is a shortage of water, add liquid to the pipeline through the liquid replenishment port 42, the liquid flows in through the water inlet pipe 12, and dissipates heat at the high-temperature heat dissipation pipe 11, heats and concentrates the dilute solution in the high-temperature generator 3, and flows th...

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Abstract

The invention discloses a chiller, which belongs to the technical field of chillers, and includes an evaporator, an absorber, a high-temperature generator, a low-temperature generator, a cooling device, and a heating device; the invention is provided with a gas heating device, so that the chiller can adapt to different The driving heat source in the temperature range; for recycling the driving heat source containing a large amount of waste heat after heat exchange, the heating device only needs to provide a small amount of heat to increase the temperature of the driving heat source again, which is used for heating and concentrating the solution in the high-temperature generator; the present invention optimizes Four heat exchangers are added to the internal circulation pipeline of the chiller, and the heat of the concentrated solution is used to preheat the dilute solution in the first circulation pipeline, and the temperature of the solution to be cooled is also reduced, which improves the efficiency of the chiller; The invention is equipped with a cooling device, which reduces the configuration requirements of the cooling tower. The cooling device is equipped with a negative pressure device, and the low-pressure environment makes water evaporate and absorb heat at a lower temperature, thereby improving the cooling efficiency.

Description

technical field [0001] The invention relates to the technical field of chillers, in particular to a chiller. Background technique [0002] Chillers are also known as refrigerators, refrigeration units, ice water units, cooling equipment, etc. In the prior art, a Chinese invention patent (CN102748890B) discloses a water-cooled chiller system, which uses a condenser heat exchange tube and an evaporator The heat exchange tube completes the heat exchange during the condensation and evaporation process of the refrigerant, which is expected to improve the heat exchange efficiency of the water-cooled chiller; water is used as the refrigerant, and the heat exchange efficiency is low; in recent years, with the development of absorption refrigerators, the exchange Lithium bromide is mostly used as heat medium. [0003] The traditional lithium bromide absorption chiller includes generators, condensers, evaporators, absorbers, solution pumps and other components. The traditional lithiu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B15/06F25B41/42F25B41/40
CPCF25B15/06F25B41/40Y02B30/62Y02A30/27
Inventor 张继亮
Owner TENENG NATURAL GAS CO LTD