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Novel jet-type heat exchanger unit

A technology of heat exchange unit and jet heat pump, which is applied in the field of industrial waste heat recovery and solar energy, can solve the problems of high investment in pipe network, high energy consumption of pipe network transportation, and high cost of central heating, so as to reduce the temperature of return water and improve the efficiency of pipe network. The effect of increasing the transmission capacity of the road and increasing the temperature difference between the supply and return water

Inactive Publication Date: 2012-07-04
北京建筑工程学院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the limitation of environmental protection factors in urban areas, newly-built centralized heat sources are generally located in the suburbs far away from the urban area. higher cost

Method used

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  • Novel jet-type heat exchanger unit
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  • Novel jet-type heat exchanger unit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1: The first kind of system composition and connection mode, such as figure 1 As shown, a new jet heat exchange unit is mainly composed of a jet heat pump, a water-to-water heat exchanger WEX and a waterway system. The jet heat pump is mainly composed of a generator G, a condenser C, an evaporator E, an ejector EJ, Working fluid circulation pump P R , regenerator IEX, liquid storage tank S, throttling device V R and connecting pipelines.

[0025] Heat pump working fluid process: The heat pump liquid working medium is heated by the water supply of the primary side pipeline in the generator G to become the heat pump working medium vapor, and then enters the ejector EJ to speed up and reduce pressure, and injects the low-pressure superheating work from the regenerator IEX After the steam of the two working fluids is combined, decelerated and pressurized, it enters the condenser C and is condensed into a liquid by the return water from the secondary side pipeli...

Embodiment 2

[0029] Embodiment 2: the second kind of system composition and connection mode, such as figure 2 As shown, a new jet heat exchange unit is mainly composed of a jet heat pump, a water-to-water heat exchanger WEX and a waterway system. The jet heat pump is mainly composed of a generator G, a condenser C, an evaporator E, an ejector EJ, Working fluid circulation pump P R , regenerator IEX, liquid storage tank S, throttling device V R and connecting pipelines.

[0030] Heat pump working fluid process: After the heat pump liquid working fluid is heated by the water supply in the primary side pipeline in the generator G and turned into working fluid vapor, it enters the ejector EJ to speed up and reduce pressure, and injects the low-pressure superheating working fluid from the regenerator IEX. After the two-way working medium steam merges, decelerates and pressurizes, it enters the condenser C and is condensed into a liquid by the return water from the secondary side pipeline, an...

Embodiment 3

[0034] Embodiment 3: the third kind of system composition and connection mode, such as image 3 As shown, a new jet heat exchange unit is mainly composed of a jet heat pump, a water-to-water heat exchanger WEX and a waterway system. The jet heat pump is mainly composed of a generator G, a condenser C, an evaporator E, an ejector EJ, Working fluid circulation pump P R , regenerator IEX, liquid storage tank S, throttling device V R and connecting pipelines.

[0035] Heat pump working fluid process: After the heat pump liquid working fluid is heated by the water supply in the primary side pipeline in the generator G and turned into working fluid vapor, it enters the ejector EJ to speed up and reduce pressure, and injects the low-pressure superheating working fluid from the regenerator IEX. After the steam of the two working fluids merges, decelerates and pressurizes, it enters the condenser C and is condensed into a liquid by the hot water from the secondary side pipeline, and ...

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Abstract

The invention discloses a novel jet-type heat exchanger unit belonging to the technical field of energy sources. The unit mainly consists of a jet-type heat pump, a water-water heat exchanger and a waterway system, wherein the jet-type heat pump consists of a generator, a condenser, an evaporator, an injector, a working medium circulating pump, a heat regenerator, a liquid storage tank, a throttling device and a connecting pipeline; the waterway system of the jet-type heat exchanger unit is divided into a primary side pipeline and a secondary side pipeline. By means of a jet-type refrigeration technology, the heat of hot water of the primary side pipeline is utilized in a cascade manner, the temperature of return water of the primary side pipeline is reduced greatly, the temperature difference between supply water and return water of the primary side pipeline is increased, the heat transmission capacity of the primary side pipeline is improved by a large margin, and the heat transfer capacity of hot water in the primary side pipeline and the secondary side pipeline is improved greatly. The novel jet-type heat exchanger unit provided by the invention can be used for recovering industrial exhaust heat, solar energy and the like, and is also applicable to the substations of a central heating system so as to improve the delivery capacity of a primary heat supply network pipeline.

Description

technical field [0001] The invention relates to a heat exchange unit for heating and hot water supply, which greatly increases the temperature difference between the primary network supply and the return water of the central heating system, and improves the primary network delivery capacity. It belongs to the field of energy technology and is mainly used for central heating. The heating system can also be used in fields such as industrial waste heat recovery and solar energy, greatly improving the heat utilization rate. Background technique [0002] The rapid development of the urbanization process in the north has led to a sharp increase in the demand for heating loads in northern cities and towns. Due to the limitation of environmental protection factors in urban areas, newly-built centralized heat sources are generally located in the suburbs far away from the urban area. higher cost. In addition, with the continuous increase of urban floor area ratio, the heating area o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24D3/18F24D3/10
CPCY02B30/12
Inventor 孙方田王娜李德英王瑞祥史永征
Owner 北京建筑工程学院
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