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Evaporator for recovering exhaust heats and heat pump device using the same

A technology of exhaust heat recovery and evaporator, which is used in evaporators/condensers, lighting and heating equipment, sustainable manufacturing/processing, etc. problem, to achieve the effect of low manufacturing cost

Inactive Publication Date: 2012-10-03
YANTAI EBARA AIR CONDITIONER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The above-mentioned evaporator structure can only correspond to one kind of exhaust heat source, and cannot recover exhaust heat from multiple heat exhaust sources at the same time
And when a large amount of low-temperature exhaust heat (such as: steam turbine exhaust, low-temperature heat source water, etc.) flows to the evaporator, these low-temperature heat sources have the characteristics of low pressure, large specific volume, and increased volume flow. The evaporator with standard structure, due to the limitation of flow velocity and pressure loss in the heat transfer tube of the heat exchanger, cannot

Method used

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  • Evaporator for recovering exhaust heats and heat pump device using the same
  • Evaporator for recovering exhaust heats and heat pump device using the same
  • Evaporator for recovering exhaust heats and heat pump device using the same

Examples

Experimental program
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Effect test

Embodiment 1

[0034] Such as figure 2 As shown, the evaporator for exhaust heat recovery of the present invention includes first and second two heat exchangers, and a common low-temperature heat source supply box is arranged between the first and second heat exchangers, and the low-temperature heat sources enter from the supply box respectively. The first and second heat exchangers on both sides exchange heat and flow to the two ends, and the outlets of the two ends are respectively equipped with low-temperature heat source return boxes, and the low-temperature heat sources after heat exchange flow into the return boxes.

[0035] When the low-temperature heat source is a gaseous substance, there may still be some non-condensable gas in the return box of the low-temperature heat source after heat exchange, so an air extraction device is installed on the return box of the low-temperature heat source. The air extraction device can be water Pressure driven ejector or water ring vacuum pump. I...

Embodiment 2

[0046] Such as image 3 As shown, the difference between this embodiment and Embodiment 1 is that the low-temperature heat source return box is shared between the first and second heat exchangers, and the low-temperature heat source enters the first and second heat exchangers from both ends of the evaporator respectively. The heat exchanger carries out heat exchange and flows to the middle part, and flows into the low-temperature heat source return box arranged between the two heat exchangers.

[0047] With such arrangement, different low-temperature heat sources can be input at both ends at the same time. When the low-temperature heat source is a gaseous substance, an air extraction device is arranged on the return box of the low-temperature heat source as in Embodiment 1.

[0048] The working process of the evaporator for waste heat recovery in this embodiment is as follows: the low-temperature heat source is transported from both ends to the first and second exchangers resp...

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Abstract

The invention relates to an evaporator for recovering a large number of low-temperature exhaust heats. The aim is to provide an evaporator which is low in cost and can simultaneously recover and utilize a lot of various low-temperature heat sources, at the same time, provide a heat pump device using the evaporator. According to the invention, the evaporator for recovering exhaust heats comprises a plurality of heat exchangers, and can simultaneously and respectively provide one or more than two low-temperature heat sources to the plurality of heat exchangers.

Description

technical field [0001] The invention relates to an evaporator structure in the field of heat pumps, in particular to an evaporator for recovery of low-temperature waste heat and a heat pump device using the evaporator. Background technique [0002] The evaporator structure of the heat pump in the prior art is as follows figure 1 As shown, water is generally used as a low-temperature heat source, which enters from one end of the evaporator, and flows out from the other end after exchanging heat through a heat exchanger. [0003] The above-mentioned evaporator structure can only correspond to one kind of exhaust heat source, and cannot recover exhaust heat from multiple exhaust heat sources at the same time. And when a large amount of low-temperature exhaust heat (such as: steam turbine exhaust, low-temperature heat source water, etc.) flows to the evaporator, these low-temperature heat sources have the characteristics of low pressure, large specific volume, and increased vol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B39/02
CPCY02P80/15
Inventor 刘志清
Owner YANTAI EBARA AIR CONDITIONER