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Heating plate

A heat plate and cover plate technology, applied in heat exchange equipment, indirect heat exchangers, lighting and heating equipment, etc., can solve the problems of difficult popularization of high-temperature heat pipes, complicated production process, high production cost, etc., and achieve convenient space layout, structural The effect of high strength and low cost

Inactive Publication Date: 2008-02-13
NANJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, high-temperature heat pipes are generally made of high-temperature resistant metals, which are expensive, and the working medium of high-temperature heat pipes is generally liquid metal (sodium, potassium, lithium, cesium, etc.), which are mostly solid at room temperature, and high-temperature heating is required during production (> 500°C) to melting before filling, the production process is complex, difficult, waste of energy, and high production cost
Due to the little success in finding new cheap high-temperature heat-carrying media, the promotion of high-temperature heat pipes is also very difficult.

Method used

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Embodiment 1

[0017] Referring to accompanying drawing 1, Fig. 1 is a schematic diagram of the shape and structure of the hot plate. The hot plate is composed of two parts, a connecting pipe 101 and a core body 102. The upper end of the core body 102 is provided with an opening 104, and the inner space of the core body 102 forms a vacuum liquid-filled channel 103. The connecting pipe 101 is connected to the core body 102 by welding at the opening 104, so as to evacuate the vacuum liquid-filled channel 103 and fill it with working liquid. The sealing method of the connecting pipe 101 can be welding or sealing pliers.

[0018] Referring to FIG. 2 , FIG. 2 is a cross-sectional view of the space structure of the hot plate, and fins 201 are provided in the vacuum liquid-filled channel 103 inside the core body 102 . The core body 102 is composed of a cover plate 211 and a cover plate 212 which are hermetically connected, and the fins 201 are hermetically connected to the inner wall of the core bod...

Embodiment 2

[0022] Referring to accompanying drawing 3, another appearance structure diagram of the hot plate. The difference between this embodiment and the previous example is that there are ribs 301 on the outer surface of the core 102 , and the ribs 301 are perpendicular to the surface of the core 102 where they are located. The fins 301 can enhance the heat transfer between the evaporating section and the condensing section. The arrows in the figure indicate the flow direction of the conduction medium, the upper end is the cold medium, and the lower end is the hot medium. The working medium turns into steam after absorbing heat in the heat medium section, moves along the vacuum liquid-filled channel 103, and condenses into a liquid after releasing heat in the cold medium section, and naturally flows back to the heat medium section, where the ribs 301 in the hot plate structure play a role To enhance the effect of heat transfer, the arrangement of several fins 301 increases the heat ...

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Abstract

The invention relates to a hot plate, aiming at providing a hot plate which has the advantages of large heat transmission, good uniform temperature performance, simple manufacturing process, good sealing performance, high structure strength, low cost, etc. The aim of the invention is realized through a technical scheme mentioned below. A core of the heat plate is a column body, of which the end is equipped with an opening. A nozzle is arranged on the opening. The inner space of the core forms into a vacuum fluid filling channel.

Description

technical field [0001] The invention relates to a heat exchange device, in particular to a heat plate. Background technique [0002] Existing high-temperature flue gas waste heat recovery devices generally use heat pipe heat exchangers. Due to the high temperature of the flue gas, which can reach up to 800-1000°C, it is generally necessary to use a high-temperature heat pipe as a heat transfer element at the inlet end of the heat exchanger to realize heat transfer between cold and hot fluids. High-temperature heat pipes can solve the problems of ordinary heat pipes without temperature difference stress, high-temperature creep of materials, and high-temperature corrosion, which brings great convenience. However, high-temperature heat pipes are generally made of high-temperature resistant metals, which are expensive, and the working medium of high-temperature heat pipes is generally liquid metal (sodium, potassium, lithium, cesium, etc.), which are mostly solid at room temper...

Claims

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Application Information

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IPC IPC(8): F28D15/02F28F1/42
Inventor 凌祥彭浩
Owner NANJING UNIV OF TECH