Multi-energy complementary heat storage heating device based on solid-liquid phase change / vapor-liquid phase change coupling heat transfer and storage

Abstract

The utility model discloses a multi-energy complementary heat storage heating device based on solid-liquid phase change / vapor-liquid phase change coupling heat transfer and storage. The multi-energy complementary heat storage heating device comprises a shell, a control part, universal wheels and a plurality of single modules. Each single module is composed of a heating part, a heat transfer and storage part and a heat dissipation part. The heat transfer and storage component comprises a novel gravity assisted heat pipe and a phase change material, the novel gravity assisted heat pipe is composed of a heat absorption cavity and a heat transfer vertical pipe, the heat transfer vertical pipe is embedded in the phase change material, and the heat absorption cavity contains a heat transfer working medium. The heating part is composed of a heating piece, a temperature-resistant heat conduction material and a power line. The heating piece is attached to the bottom of the heat absorption cavity and coated with the temperature-resistant heat conduction material. The heat dissipation component comprises a heat dissipation cylinder with inner and outer heat dissipation fins and a top end cover. The device utilizes the phase change material to efficiently store heat, quickly transfers heat through the gravity assisted heat pipe, realizes lasting heat supply in combination with an optimized heat dissipation structure, and has the characteristics of modularization, extensibility, convenience in movement, safety, stability and the like.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of high heat flux density heat transfer in limited space, and particularly relates to a multi-energy complementary heat storage heating device based on solid-liquid phase change / vapor-liquid phase change coupling heat transfer and storage. BACKGROUND

[0002] Existing heat storage heating devices mostly adopt sensible heat storage mode, and their heat energy utilization efficiency is limited, and they often need to rely on municipal heating pipe networks to play a role. Such systems not only have complex structure and harsh installation conditions, but also have obvious limitations in distributed heating and multi-energy complementary energy utilization, and are difficult to meet the growing energy saving and independent heating demand.

[0003] Combining phase change materials with building heating can effectively realize building energy saving, and the heat storage technology can utilize the peak-valley difference of electricity by shifting peak load, so as to achieve the purpose of energy storage. However, the existing heat storage heating devices on the market need to cooperate with the heating pipe network system, and have the disadvantages of complex system, large initial investment, wide land occupation, etc., and it is necessary to comprehensively consider designing a better electric heat storage heating device. Therefore, we design a multi-energy complementary heat storage heating device which can solve the above problems. CONTENT OF THE INVENTION

[0004] The application aims to overcome the difficulty of winter heating in areas without heating pipe network infrastructure, and provides a multi-energy complementary heat storage heating device based on solid-liquid phase change / vapor-liquid phase change coupling heat transfer and storage, which has the advantages of large heat storage capacity, efficient heat storage, long-lasting heat supply, easy movement, high safety, good stability, etc. The new gravity heat pipe, phase change material, box and other components can provide convenient heat storage heating function for daily traffic, military tents and other scenes.

[0005] To achieve the above purpose, the technical scheme adopted by the application is as follows:

[0006] A multi-energy complementary heat storage heating device based on solid-liquid phase change / vapor-liquid phase change coupling heat transfer and storage, which comprises a shell, a control component, universal wheels and a plurality of single modules.

[0007] The single module is composed of a heating component, a heat transfer and storage component, and a heat dissipation component.

[0008] The new gravity heat pipe, phase change material heat storage and release, and fin heat dissipation are combined to realize stable and efficient heat storage and release function.

[0009] Preferably, the control component comprises a temperature sensor, a thermocouple and a power switch.

[0010] Preferably, the heat transfer and storage component comprises a new gravity heat pipe and a phase change material.

[0011] Preferably, the phase change material is filled in the heat dissipation cylinder, the heat transfer pipe is embedded in the phase change material, and the heat generated by the heating component is transmitted and stored in the phase change material by the high thermal conductivity of the heat pipe.

[0012] Preferably, the heating component comprises a heating sheet, a temperature-resistant heat-conducting material and a power line.

[0013] Preferably, the upper surface of the heating sheet is attached to the bottom of the heat absorption cavity, and the upper surface is coated with a temperature-resistant heat-conducting material.

[0014] Preferably, the power line is connected to the heating sheet, and the heat absorption cavity is heated at night by using valley electricity, and the working medium in the heat absorption cavity is evaporated and heats the heat transfer pipe.

[0015] Preferably, the heat dissipation component is a heat dissipation cylinder with heat dissipation fins uniformly arranged inside and outside.

[0016] Preferably, the heat dissipation fins are longitudinal strip fins, which can enhance convective heat transfer. The entire heating is realized by natural convection heat dissipation.

[0017] The beneficial effects of the present application are as follows:

[0018] The present application provides a multi-energy complementary heat storage heating device based on solid-liquid phase change / vapor-liquid phase change coupling heat transfer and storage, which reasonably combines the high thermal conductivity advantage of the new gravity heat pipe and the high latent heat advantage of the phase change material. The new gravity heat pipe serves as a bridge connecting the heat source, the phase change material and the user, and plays a role in efficient heat transfer.

[0019] The present application adopts heat transfer and storage component coupling, which can add or reduce the coupling module as needed, and can be longitudinally elongated in the case of insufficient transverse space, effectively meeting the customer demand.

[0020] The longitudinal strip fins uniformly distributed inside and outside the heat dissipation cylinder can enhance convective heat transfer. DETAILED DESCRIPTION

[0021] In order to make the present application clearer and more intuitive, the drawings described herein are used to provide further understanding of the present application, and form a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application, and do not constitute an improper limitation on the present application. In the drawings:

[0022] Figure 1 It is an overall external structure of the present application.

[0023] Figure 2 It is the structure schematic view of the heat transfer and storage and heat dissipation component of the embodiment case one of the utility model;

[0024] Figure 3 It is the structure schematic view of the heat transfer and storage and heat dissipation component of the embodiment case two of the utility model;

[0025] Figure 4 It is the structure schematic view of the heating and heat transfer component of the utility model;

[0026] Figure 5 It is the structure schematic view of the heating component of the utility model;

[0027] Marked explanation in drawing: 1 shell, 2 controller, 3 heat dissipation cylinder, 31 phase change material, 4 heat transfer vertical pipe, 5 universal wheel, 6 heat absorption cavity, 7 heating device, 71 temperature-resistant heat-conducting material, 72 heating sheet, 8 top end cover. DETAILED DESCRIPTION

[0028] The technical scheme in the embodiment of the utility model will be clearly and completely described in combination with the drawings in the embodiment of the utility model, and obviously, the described embodiment is only used to illustrate the technical scheme of the utility model and is not limited, and based on the embodiment in the utility model, equivalent changes or modifications made according to the spirit of the utility model should be covered in the claim scope of the utility model.

[0029] Embodiment case one

[0030] As shown in Figure 2 , 4 , the heat transfer and storage component includes heat transfer vertical pipe 4, heat absorption cavity 6, phase change material 31, the heat transfer vertical pipe 4 of novel gravity heat pipe is welded with heat absorption cavity 6, phase change material 31 is filled in heat dissipation cylinder 3, heat transfer vertical pipe 4 is embedded in phase change material 31, and heat dissipation cylinder 3 is sealed with top end cover 8 on the top.

[0031] As shown in Figure 4 , 5 , the lower surface of heat absorption cavity 6 is attached with heating sheet 72, the upper surface of heating sheet 72 is coated with temperature-resistant heat-conducting material 71, and the lower surface of heating sheet 72 is connected with power line, and the whole heating device 7 can be freely disassembled.

[0032] The working medium of the heat transfer vertical pipe 4 can be a single substance, such as water, ethanol, low-melting-point metal, etc., can be a mixture of multiple substances, such as water / glycol solution, etc., can be a micro-nano capsule phase change material emulsion or nanofluid, etc. The heat transfer vertical pipe 4 and the heat absorption cavity 6 form a new type of gravity heat pipe, and the pipe material can be copper, stainless steel and other metals, alloys, etc. The phase change material 31 can be an organic phase change material, such as paraffin, fatty acid, etc., can be an inorganic phase change material, such as molten salt phase change material, etc., can be a phase change material or microcapsule phase change material composed of high thermal conductivity material such as expanded graphite and ordinary organic phase change material.

[0033] The fins can be made of high-thermal-conductivity stainless steel, copper, aluminum alloy, etc.

[0034] The working principle of the device of the present application is as follows.

[0035] The heat transfer working medium is added through the heat transfer vertical pipe 4, and the heat transfer working medium is contained in the heat absorption cavity 6;

[0036] The heating sheet 72 heats the heat absorption cavity 6, and the working medium in the heat absorption cavity 6 evaporates and heats the heat transfer vertical pipe 4, and the heat transfer vertical pipe 4 transfers part of the heat to the phase change material 31 by virtue of its high thermal conductivity, and the phase change material 31 stores heat through latent heat or sensible heat, and the heat transfer vertical pipe 4 directly dissipates another part of the heat for heating;

[0037] The stored heat is dissipated through the longitudinal strip fins.

[0038] Case two

[0039] As Figure 3 A multi-energy complementary heat storage heating device based on solid-liquid phase change / vapor-liquid phase change coupling heat storage can reduce the number of single modules horizontally and extend the height of single modules vertically to meet different needs, and the implementation principle is the same as that of case one.

[0040] The above is only the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled persons in the technical field, some improvements and refinements can be made without departing from the principles of the present application, and these improvements and refinements should also be regarded as the protection scope of the present application.

Claims

1. A multi-energy complementary thermal storage heating device based on solid-liquid phase change / vapor-liquid phase change coupled heat transfer and storage, characterized in that: It comprises a shell, a control component, universal wheels and several single modules. The control component comprises a temperature sensor, a thermocouple and a power switch. The single module is composed of a heating component, a heat transfer and storage component and a heat dissipation component. The heat transfer and storage component is composed of a new gravity heat pipe and a phase change material. The new gravity heat pipe is composed of a heat absorption cavity and a heat transfer riser. The heat transfer riser is embedded in the phase change material.

2. The multi-energy complementary heat storage heating device based on solid-liquid phase change / vapor-liquid phase change coupled heat storage according to claim 1, characterized in that: The lower end of the heat transfer riser is connected with the heat absorption cavity. 3.The multi-energy complementary heat storage heating device based on the solid-liquid phase change / vapor-liquid phase change coupled heat storage of claim 1, characterized in that: The heat absorption cavity contains heat transfer working medium.

4. The multi-energy complementary heat storage heating device based on solid-liquid phase change / vapor-liquid phase change coupled heat storage according to claim 1, characterized in that: The heating component is composed of a heating sheet, a temperature-resistant heat-conductive material and a power line.

5. The multi-energy complementary heat storage heating device based on solid-liquid phase change / vapor-liquid phase change coupled heat storage according to claim 1, characterized in that: The heating sheet is attached to the bottom of the heat absorption cavity and coated with the temperature-resistant heat-conductive material on the upper surface. The heating sheet is connected with the power line. The heat dissipation component is composed of a heat dissipation cylinder with heat dissipation fins arranged uniformly inside and outside and a top cover. The heating component uses an independent heating device. The heating sheet can be detached and installed. The upper end of the heat transfer riser is sealed. The lower end of the heat transfer riser is welded to the heat absorption cavity and connected therewith. The heat dissipation fins are longitudinal strip fins. The phase change material is filled inside the heat dissipation cylinder.

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