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Mobile heat storage vehicle based on phase-change materials

A phase change material and heat storage technology, which is applied in the direction of freight vehicles, motor vehicles, heat storage equipment, etc., can solve the trouble of installing or dismantling heat storage devices, the difficulty of recycling phase change separation heat storage devices, barium hydroxide High toxicity and other problems, to achieve good heat insulation effect, simple structure, good heat preservation effect

Pending Publication Date: 2017-07-28
齐齐哈尔市丰华节能环保发展有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] It has been proposed to use barium hydroxide as a phase change heat storage medium, but barium hydroxide has problems such as high toxicity, supercooling, poor cycle stability, phase change separation, and difficulty in recycling after the heat storage device is scrapped.
[0008] In addition, the above-mentioned prior art also has the disadvantages of troublesome installation or disassembly of the heat storage device and inflexible operation.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

manufacture example 1

[0092] Manufacture Example 1 Manufacture of heat exchange devices with different structures

[0093] Design and manufacture respectively as figure 1 , 2 Three heat exchange devices of the heat storage device shown in and 3, the spiral tube, the circular tube and the spiral plate, they have the following structural parameters:

[0094] Table 1: Structural parameters of three heat exchange devices

[0095]

[0096] The above-mentioned heat exchange device was tested using a thermally conductive phase change material. The performance parameters of the material are as follows: the phase transition point is 120°C; the latent heat of phase transition is 250kJ / kg; the thermal conductivity at room temperature is 5W / mK; the density is 1000kg / m 3 ; Specific heat at constant pressure is 2kJ / kgK.

[0097] It is found through experiments that the heat storage performance of the spiral tube heat exchange device or the spiral plate heat exchange device is relatively better, and the ph...

Embodiment 1

[0108] The exhaust gas temperature of a thermal power plant boiler is 220-250°C, the pressure is 0.6MPa, and the flow rate is 8000m 3 / h~9000m 3 / h. The heat exchange device of the mobile energy storage device of the present invention has a spiral plate structure, and erythritol with a melting point of 120°C is selected as the phase change material, and expanded graphite is used as the thermally conductive filler, and the thermally conductive phase change material is composed of erythritol and thermally conductive filler. Formed, the mass percentage of the thermally conductive filler in the thermally conductive phase change material is 10%, the phase change latent heat of the thermally conductive phase change material is 250kJ / kg, and the thermal conductivity is (10W / m·K); the shell sandwich structure contains The insulation material is airgel insulation material, and the thickness of the sandwich structure is 30mm. With the mobile heat storage vehicle of the present inventi...

Embodiment 2-6

[0110] Except the content shown in the following table, it carried out in the same manner as Example 1.

[0111]

[0112] It can be seen from the results in the table that the mobile heat storage vehicle of the present invention may have high heat storage efficiency and low heat transportation loss.

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Abstract

The invention relates to a mobile heat storage vehicle based on phase-change materials. The mobile heat storage vehicle comprises a transport device, a heat storage device and a control system, wherein the heat storage device is fixed to the transport device in an operating mode, and the control system can display in time or monitor in time the situation selected from the flow rate, temperature, pressure, heat storage capacity, GPS positioning, travel speed and / or operating mileage; and the heat storage device comprises a housing, heat conduction phase-change materials and a heat exchange device, wherein the heat conduction phase-change materials and the heat exchange device are filled in the housing. The mobile heat storage vehicle is filled with a large amount of high performance phase-change materials to serve as heat storage mediums, the heat storage mediums, belongs to heat transfer between heat source ends and client ends rather than the transfer with no medium, and is obviously superior to the heat storage performance of the mobile heat storage vehicle which uses water mediums of the hot source ends or is filled with a small amount of phase-change materials; the control system can realize real-time monitoring and background monitoring; and the heat storage device can further comprise a heated fluid pipeline independent of a heating fluid pipeline, the waste heat recovery for non-clean high temperature flow is achieved, and using of lone time does not produce pollutions such as water pipes.

Description

technical field [0001] The invention belongs to the field of energy saving and heat supply, and in particular relates to a mobile heat storage vehicle based on phase change materials. Background technique [0002] my country's industrial production process consumes a lot of energy, the main reason being that the exhausted waste heat and waste heat cannot be recycled reasonably. The thermal efficiency of industrial furnaces is relatively low, and about 50% of the heat is taken away by high-temperature flue gas and high-temperature slag. Therefore, recycling waste heat and reducing energy consumption are of great practical significance to my country's energy-saving, emission-reduction, and environmental-friendly development strategies. [0003] However, there are time and regional differences between the recovery and utilization of waste heat, especially for high-energy-consuming industries such as chemical industry and smelting, where there is both excess heat energy, abunda...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60P3/00F28D20/00F24D15/02
CPCF24D15/02F28D20/0056B60P3/00Y02E60/14
Inventor 王增长金兆国薛维君张靖驰谭化琪党广洲张雅倩张天翔雷雨
Owner 齐齐哈尔市丰华节能环保发展有限公司
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