Rotary heat accumulating type heat exchanger

Abstract

The invention discloses a rotary heat accumulating type heat exchanger, which comprises a heat accumulating body (10), a rotating shaft (4) and disk rotary valves, wherein the rotating shaft movably penetrates through the heat accumulating body, two ends of the heat accumulating body are respectively provided with a cold air box (2) and a hot air box (21), the cold air box is provided with a cold air waste chamber (17) and a combustion air chamber (18), the hot air box is provided with a hot air waste chamber (19) and a high-temperature air chamber (20), the cold air box and the hot air box are internally provided with the disk rotary valves, each disk rotary valve comprises a radial current divider (8) provided with inner current division holes (16) and outer current division holes (15) at intervals, and a circumferential current divider (13); and a valve seat is fixedly arranged on the rotating shaft between the radial current divider and the circumferential current divider. According to the invention, the heat efficiency can be improved to above 90 percent, fuel consumption can be reduced, operation cost of an industrial furnace is reduced, and the quality of combustion air is improved. The rotary heat accumulating type heat exchanger has the advantages of compact structure, stable and reliable use, convenience for installation and maintenance, and long service life.

Description

technical field

[0001] The invention relates to industrial heating furnaces such as boilers, in particular to a heat exchanger for high-temperature exhaust gas. Background technique

[0002] As we all know, industrial heating furnaces, such as boilers, industrial furnaces, incinerators, drying furnaces and other heating furnaces, will emit high-temperature exhaust gas. This exhaust gas has a high temperature and can generate heat. If it is fully recycled, it can save fuel and reduce costs. 2. Reduce fuel consumption and reduce pollutant emissions. Therefore, for industrial high-temperature gas, the heat exchanger is fully utilized to use high-temperature exhaust gas as a heat source to heat the combustion-supporting air, thereby saving fuel. At present, although there are many types of heat exchangers, the main types of heat exchangers are mainly metal heat exchangers, and most metal heat exchangers use U-shaped tubes, fins and other structures for heat exchange. Metal heat...

Examples

Embodiment Construction

[0020] in figure 1 , figure 2 , image 3 , Figure 4 with Figure 5 in, figure 2 Indicates the cross section of the heat storage body 10, image 3 Indicates the cross section of the circumferential divider 13, Figure 4 Represents the cross section of the valve seat 9 of the cold end, Figure 5 Shows the cross section of the valve seat 9 of the hot end. The rotary regenerative heat exchanger includes a heat storage body 10, a rotating shaft 4 and a disc-type rotary valve. The heat storage body 10 is a heat storage body made of honeycomb ceramics. Of course, the heat storage body is preferably an alumina-based honeycomb. It is made of ceramics. The honeycomb ceramic heat storage body has the characteristics of high temperature resistance, acid and alkali resistance and corrosion resistance and large specific surface area. The heat storage body is cubic, or cylindrical or other shapes. The upper end of the heat storage body is the cold end. The lower end is the hot end. The ro...

technical field

[0001] The invention relates to industrial heating furnaces such as boilers, in particular to a heat exchanger for high-temperature exhaust gas. Background technique

[0002] As we all know, industrial heating furnaces, such as boilers, industrial furnaces, incinerators, drying furnaces and other heating furnaces, will emit high-temperature exhaust gas. This exhaust gas has a high temperature and can generate heat. If it is fully recycled, it can save fuel and reduce costs. 2. Reduce fuel consumption and reduce pollutant emissions. Therefore, for industrial high-temperature gas, the heat exchanger is fully utilized to use high-temperature exhaust gas as a heat source to heat the combustion-supporting air, thereby saving fuel. At present, although there are many types of heat exchangers, the main types of heat exchangers are mainly metal heat exchangers, and most metal heat exchangers use U-shaped tubes, fins and other structures for heat exchange. Metal heat...

Examples

Embodiment Construction

[0020] in figure 1 , figure 2 , image 3 , Figure 4 with Figure 5 in, figure 2 Indicates the cross section of the heat storage body 10, image 3 Indicates the cross section of the circumferential divider 13, Figure 4 Represents the cross section of the valve seat 9 of the cold end, Figure 5 Shows the cross section of the valve seat 9 of the hot end. The rotary regenerative heat exchanger includes a heat storage body 10, a rotating shaft 4 and a disc-type rotary valve. The heat storage body 10 is a heat storage body made of honeycomb ceramics. Of course, the heat storage body is preferably an alumina-based honeycomb. It is made of ceramics. The honeycomb ceramic heat storage body has the characteristics of high temperature resistance, acid and alkali resistance and corrosion resistance and large specific surface area. The heat storage body is cubic, or cylindrical or other shapes. The upper end of the heat storage body is the cold end. The lower end is the hot end. The ro...

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