Heat exchanger and heat exchanger system

A heat exchanger and thermal conductivity technology, applied in indirect heat exchangers, heat exchanger types, heat sinks, etc., can solve the problems of long liquefaction time and large loss of cooling capacity, so as to increase the cooling capacity and improve the heat transfer capacity. Thermal efficiency, the effect of increasing the heat exchange area

Pending Publication Date: 2020-12-15
GUANGZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this liquefaction time is often relatively long, which results in a large loss of cooling capacity for transmission

Method used

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  • Heat exchanger and heat exchanger system
  • Heat exchanger and heat exchanger system
  • Heat exchanger and heat exchanger system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Such as Figure 1-Figure 3 As shown, this embodiment provides a heat exchanger. The heat exchanger 1 includes a heat exchange assembly, and the heat exchange assembly includes a row tube 11 and fins 12. The row tube 11 can be filled with brine or heat carrier. The fins 12 are arranged on the outer wall of the row tube 11 , and the height of the fin 12 extends along the radial direction of the row tube 11 . The fins 12 include first fins and second fins, the plate surface of the first fin is parallel to the axis of the row pipe 11, which is equivalent to the longitudinal fin of the first fin position, and the plate surface of the second fin is parallel to the axis of the row pipe The axis of 11 is vertical, which is equivalent to that the second fin is a transverse fin. The first fin includes a first heat conduction part 121 and a second heat conduction part 122 sequentially connected to the row pipe 11 , and the thermal conductivity of the second heat transfer part 122...

Embodiment 2

[0066] Such as Figure 4 As shown, this embodiment provides a heat exchanger system, including the heat exchanger 1 provided in Embodiment 1, and also includes a switching valve 5, a low-temperature cold source and a high-temperature heat source 6, and the low-temperature cold source and high-temperature heat source 6 pass through the switching valve 5 It communicates with the row pipe 11 to feed brine or heat transfer agent into the row pipe 11. Specifically, in this embodiment, the switching valve 5 is a four-way valve. In the de-icing working condition, the low-temperature cooling source is communicated with the exhaust pipe 11 by switching the switching valve 5, so as to pass the brine into the exhaust pipe 11; in the deicing working condition, by switching the switching valve 5, the The high-temperature heat source communicates with the row pipe 11 to feed heat carrier into the row pipe 11 .

Embodiment 3

[0068] Such as Figure 5 As shown, this embodiment provides a heat exchanger system, including the heat exchanger 1 provided in Embodiment 1, and also includes a cold storage tank 2, a filter screen 3, a circulation assembly 4, a switching valve 5, and a low-temperature cold source and a high-temperature heat source 6 . Water and ice are housed in the cold storage tank 2 . The filter screen 3 is installed on the top of the cold storage tank 2 and immersed in water. The circulation assembly 4 comprises a circulation pipeline 41, a valve 42, a water pump 43 and a water distributor nozzle 44. The inlet 411 of the circulation pipeline 41 is inserted in the water of the cold storage tank 2, and the inlet 411 is positioned above the filter screen 3. The valve 42 and The water pumps 43 are installed on the circulation pipeline 41 , and the outlet 412 of the circulation pipeline 41 communicates with the water distributor nozzle 44 , and the water distributor nozzle 44 is arranged at...

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Abstract

The invention relates to the technical field of heat exchangers, and discloses a heat exchanger and a heat exchanger system. The heat exchanger comprises calandrias and fins, wherein the fins are arranged on the outer walls of the calandrias, the height of the fins extends in the radial direction of the calandrias, the fins comprise the first fin and the second fin, the plate face of the first finis parallel to the axis of the calandrias, the plate face of the second fin is perpendicular to the axis of the calandrias, the first fin comprises a first heat conduction part and a second heat conduction part which are sequentially connected with the calandrias, the heat conduction coefficient of the second heat conduction part is less than that of the first heat conduction part and that of thecalandrias, the second fin comprises a third heat conduction part and a fourth heat conduction part which are sequentially connected with the calandrias, and the heat conduction coefficient of the fourth heat conduction part is less than that of the third heat conduction part and that of the calandrias. According to the heat exchanger and the heat exchanger system, the heat conduction coefficients of the second heat conduction part and the fourth heat conduction part are lower, phase-change solid substances can be prevented from annularly wrapping around the calandrias, the separation time ofthe phase-change solid substances is shortened, and the heat exchange efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of heat exchangers, in particular to a heat exchanger and a heat exchanger system. Background technique [0002] With the improvement of people's living standards, the demand for energy is also increasing, such as central air-conditioning refrigeration, heating in northern winter, logistics cold supply chain, large-scale heat storage and cold storage, etc. The transmission of cold and heat here involves the use of heat exchangers. For conventional fluid medium heat transfer, high heat transfer efficiency can be achieved by increasing the thermal conductivity of heat exchanger materials, increasing the heat transfer area, and increasing the flow velocity of conventional fluids, which can respond to the national requirements for energy saving and emission reduction . However, some heat exchanger systems involve the phase change of the medium, especially the heat transfer system of gas-solid and liquid-solid ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28D1/053F28F1/12F28F21/08F28F21/06F28D20/02
CPCF28D1/053F28D20/021F28F1/12F28F21/062F28F21/081F28F2215/10Y02E60/14
Inventor 陈奇良周孝清李峰郝海青姜恒毛凯
Owner GUANGZHOU UNIVERSITY
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