Preheating body for preheating combustion-supporting air by using flame radiation and heat energy equipment with preheating body

A technology of combustion-supporting air and flame radiation, which is applied in the field of combustion equipment and components, and can solve problems such as large heat loss, low thermal efficiency, and low thermal efficiency

Pending Publication Date: 2017-11-03
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

because figure 1 The basic way of heating an object with a flame as shown has many paths of heat loss as mentioned above, so it is not thermally efficient
At present, there are still many industrial and civil combustion heating equipment (such as Bunsen burners, blowtorches, household gas cookers, commercial gas cookers, fuel oil cookers, radiant heaters) with different heating methods. figure 1 Similarly, the common problem is large heat loss and low thermal efficiency

Method used

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  • Preheating body for preheating combustion-supporting air by using flame radiation and heat energy equipment with preheating body
  • Preheating body for preheating combustion-supporting air by using flame radiation and heat energy equipment with preheating body
  • Preheating body for preheating combustion-supporting air by using flame radiation and heat energy equipment with preheating body

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Such as figure 2 Shown is a schematic diagram of a spiral-wound preheater in the present invention. see figure 2 , The spiral-wound preheater 1 includes a spiral-wound portion 11 and a cylinder 12 . The height of the spiral coil portion 11 is slightly lower than the height of the applied burner head; the height of the cylinder 12 is greater than or equal to the height of the object to be heated away from the burner head. The height of the spiral-wound preheater 1 is the sum of the height of the spiral-wound portion 11 and the height of the cylinder 12 . The spiral coil portion 11 has a through hole in the middle, and the through hole in the middle is adapted to the outer diameter of the burner head.

[0052] The spiral-wound preheater 1 is made of copper foil according to the following method:

[0053] (1) Buy copper foil from the market. The thickness specification of the copper foil sheet can be selected from single zero foil (0.1 to 0.01mm); the width specific...

Embodiment 2

[0079] The space around the burner head of many combustion heating equipment is narrow, and it is difficult to install the spiral-wound preheater given in Example 1. The most common of these combustion heating equipment is the gas stove used in ordinary household kitchens. There is very little space between the head and the bottom of the pan.

[0080] Aiming at these heating equipments where it is difficult to install a spiral-wound preheater, the present invention provides another flat radiation-finned preheater that utilizes flame radiation to preheat the combustion-supporting air, such as Figure 5 with 6 shown. The flat radiation-finned preheater 2 includes a cylinder 22, the bottom of which is supported on the cooking range, and the top of which supports a round-bottomed frying pan. A series of air inlets 23 are evenly opened on the wall of the bottom edge of the cylinder 22 around the circumference direction, and a series of smoke outlets 24 are evenly opened around t...

Embodiment 3

[0097] This embodiment is a high-position radiation-finned preheater used for a frying pan. see Figure 7 , The high-position radiating finned preheater 3 includes a cylinder 32, the bottom of which is supported on the cooktop, and the top of which is fixedly or detachably mounted with an annular plate 35. The middle part of the ring plate 35 has an opening matched with the outer diameter of the frying pan, and the two ears of the frying pan are supported on the edge of the opening in the middle part of the ring plate 35 . A series of air inlets 33 are evenly opened around the circumference on the wall at the bottom edge of the cylinder 32 , and a series of smoke outlets 34 are evenly opened around the circumference on the wall at the middle of the cylinder 32 . A series of long radiation fins 311 and short radiation fins 312 are arranged inside the cylinder 32 . The radial arrangement mode of these radial fins is identical with embodiment 2 ( Figure 7 The A-A sectional vi...

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Abstract

The invention discloses a preheating body for preheating combustion-supporting air by using flame radiation. The preheating body is characterized by being provided with a series of heat absorption and transfer surfaces for absorbing the flame radiation, wherein a combustion-supporting air channel is formed between every two adjacent heat absorption and transfer surfaces; the preheating body transmits heat energy, which is obtained by conversion of flame radiation energy, to the combustion-supporting air which flows through and is in direct with the heat absorption and transfer surfaces; and the structural form of the preheating body is that the preheating body has a blackbody effect on the flame radiation towards the preheating body. The preheating body is in the following specific forms: a spiral winding sheet form, a radiation fin form, a multihole breathable form, a vortex fin form and the like. The invention further discloses heat energy equipment with the preheating body for preheating the combustion-supporting air by using the flame radiation. The preheating body absorbs and converts the outwards emitted flame radiation energy in basic modes for heating an object with flame into heat energy, and then preheats the combustion-supporting air by using the heat energy, so that flame radiation heat loss is avoided, and the heat efficiency is improved.

Description

technical field [0001] The present invention relates to combustion equipment and components, more particularly to a preheater that uses flame radiation to preheat combustion-supporting air and thermal energy equipment with it. Background technique [0002] The case of finding traces of hominids using fire in prehistoric sites one million years ago has been reported in archaeological research. There are charcoal shavings. It is speculated that primitive humans obtained fire from forest fires caused by lightning, and then gradually mastered the method of artificial fire. Only with fire can food be cooked, and primitive people can eat cooked food, which promotes the development of the human brain and the evolution of the production and living system. Deli food also significantly expanded the sources and variety of food available. The heat provided by the fire also helped people keep warm and survive the winter, expanding the range of activities in high latitudes. [0003] I...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23L15/00F24C3/00F24C15/24
CPCF23L15/00F24C3/008F24C15/24Y02E20/34
Inventor 黄海涛
Owner GUANGDONG UNIV OF TECH
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