CN210004414U

CN210004414U - waste incineration exhaust-heat boiler with front-mounted air preheater

Info

Publication number: CN210004414U
Application number: CN201920585660.9U
Authority: CN
Inventors: 陈玉村; 焦志武; 余期升; 陈晗霞; 陈丽华; 佘宏飞
Original assignee: Jiang Lian Heavy Industry Group Ltd By Share Ltd
Current assignee: Jiang Lian Heavy Industry Group Ltd By Share Ltd
Priority date: 2019-04-26
Filing date: 2019-04-26
Publication date: 2020-01-31
Anticipated expiration: 2029-04-26

Abstract

The utility model discloses an kind are equipped with leading-type air heater's msw incineration exhaust-heat boiler, including the air heater air-supply line, air heater heat transfer pipe fitting, air heater goes out the tuber pipe, air heater supports and air heater supports two, air heater supports and air heater supports two horizontal intervals and sets up the entry at exhaust-heat boiler's furnace room, air heater heat transfer pipe fitting is installed and is supporting the up end that and air heater supported two at air heater, air heater heat transfer pipe fitting is crooked snakelike setting, air heater heat transfer pipe fitting's air inlet and gas outlet all set up the exhaust-heat boiler outside, air heater heat transfer pipe fitting's air inlet and air heater air-supply line are linked together, air heater heat transfer pipe fitting's gas outlet and air heater go out the tuber pipe and are linked together, the utility model discloses an it is between reasonable smoke temperature range to arrange this device in, high, low temperature corrosion has been.

Description

waste incineration exhaust-heat boiler with front-mounted air preheater

Technical Field

The utility model relates to a boiler technical field, concretely relates to kinds of waste incineration exhaust-heat boilers who are equipped with forward type air heater.

Background

In order to prevent low-temperature corrosion of the tail part, a steam air preheater is adopted like in the waste incineration exhaust-heat boiler, so that the heat exchange effect is poor, the hot air temperature is not high, and when the heat value of the waste is low and the moisture is high, the combustion-supporting effect is poor.

Disclosure of Invention

The utility model aims to solve the problems that waste incineration exhaust-heat boilers with prepositive air preheaters are provided, high and low temperature corrosion is prevented by arranging the device in a reasonable smoke temperature range, and the waste incineration exhaust-heat boilers have good heat exchange effect, simple structure and economic materials.

kinds of waste incineration exhaust-heat boilers who is equipped with leading-type air heater, go out tuber pipe, air heater support and air heater including exhaust-heat boiler, air heater air-supply line, air heater heat transfer pipe fitting, air heater and support two, air heater supports and air heater supports two horizontal intervals and sets up the entry at exhaust-heat boiler's furnace room, air heater heat transfer pipe fitting is in air heater supports and air heater supports the up end of two, air heater heat transfer pipe fitting is crooked snakelike setting, air heater heat transfer pipe fitting's air inlet and gas outlet all set up exhaust-heat boiler is outside, air heater heat transfer pipe fitting's air inlet with the air heater air-supply line is linked together, air heater heat transfer pipe fitting's gas outlet with air heater goes out the tuber pipe and is linked together.

Preferably, the furnace chamber of the waste heat boiler is divided into a furnace chamber , a furnace chamber II and a furnace chamber III, and the furnace chamber , the furnace chamber II and the furnace chamber III are sequentially communicated with each other.

Preferably, the position, close to the heat exchange pipe fitting of the air preheater, of the outer wall of the waste heat boiler is provided with a third air preheater support, and an air inlet pipe of the air preheater is arranged on the lower end face of the third air preheater support.

① compared with the prior art, the utility model has the advantages that the utility model discloses a front-mounted air heater in the stove has avoided air heater to arrange in afterbody low temperature corrosion's problem, arranges air heater in the entry of furnace chamber simultaneously, and the smoke temperature is not high, has prevented high temperature corrosion, ② air heater heat transfer pipe fitting adopts snakelike heat transfer tubular form, and the heat transfer effect is good, and the material consumption is few, and hot-blast temperature is high, ③ the utility model discloses simple structure, the material does not need special anticorrosive material, ④ direct flue gas air heat transfer, the front-mounted is in the stove, and the difference in temperature is big, and the flue gas is outside the pipe, and the air is intraductal, and coefficient of heat transfer.

Drawings

The drawings described herein are for providing an understanding of the invention at and constitute a part of the invention, and the exemplary embodiments and descriptions thereof are illustrative of the invention and do not constitute undue limitations on the invention.

Fig. 1 is a schematic view of the overall structure of the present invention;

the attached drawings are marked with 1, , 2, three and 3 furnace chambers, 4, three and 5 air preheater supports, 6 air inlet pipes, 6 air outlet pipes, 7, two and 8 air preheater supports, and 9 air preheater supports and two furnace chambers.

Detailed Description

The following detailed description will be made with reference to the accompanying drawings and examples, so that how to implement the technical means of the present invention to solve the technical problems and achieve the technical effects can be fully understood and implemented.

The utility model discloses a concrete embodiment is shown in figure 1, kinds of waste incineration exhaust-heat boiler who is equipped with leading-type air heater, go out tuber pipe 6, air heater support 8 and air heater including exhaust-heat boiler, air heater air-supply line 5, air heater heat transfer pipe fitting 3, air heater and support two 7, air heater supports 8 and air heater and supports two 7 horizontal intervals and set up the entry at exhaust-heat boiler's furnace room, air heater heat transfer pipe fitting 3 installs air heater supports 8 and air heater and supports the up end of two 7, air heater heat transfer pipe fitting 3 is crooked snakelike setting, air heater heat transfer pipe fitting 3's air inlet and gas outlet all set up exhaust-heat boiler is outside, air heater heat transfer pipe fitting 3's air inlet with air heater air-supply line 5 is linked together, air heater heat transfer pipe fitting 3's gas outlet with air heater goes out tuber pipe 6 and is linked together.

The furnace chamber of the waste heat boiler is divided into three parts, namely a furnace chamber 1, a furnace chamber II 9 and a furnace chamber III 2, and the furnace chamber 1, the furnace chamber II 9 and the furnace chamber III 2 are communicated with one another in sequence.

And an air preheater support III 4 is arranged at the position, close to the air preheater heat exchange pipe fitting 3, of the outer wall of the waste heat boiler, and an air inlet pipe 5 of the air preheater is arranged on the lower end face of the air preheater support III 4.

The flue gas temperature at the inlet of the furnace chamber III 2 is ℃ in the range of 500-600 ℃, in the temperature region, the pipe wall temperature of the heat exchange pipe fitting of the air preheater is higher than the dew point temperature of low-temperature corrosion and lower than the node temperature of high-temperature corrosion, air passes through the air inlet pipe 5 of the air preheater and then passes through the heat exchange pipe fitting 3 of the air preheater ( is arranged in a countercurrent manner), and high-temperature air is generated and is conveyed to the waste incineration for combustion supporting through the air outlet pipe 6 of the air preheater.

① the utility model has the advantages that the utility model discloses a front-mounted air heater has avoided air heater to arrange the problem of afterbody low temperature corrosion in the stove, arranges air heater in the entry of furnace chamber simultaneously, and the smoke temperature is not high, has prevented high temperature corrosion, ② air heater heat transfer pipe fitting adopts snakelike heat transfer tubular form, and the heat transfer is effectual, and material consumption is few, and hot-blast temperature is high, ③ the utility model discloses simple structure, the material does not need special anticorrosive material, heat transfer between ④ direct flue gas air, and the front-mounted is in the stove, and the difference in temperature is big, and the flue gas is outside the pipe, and the air is intraductal, and coefficient of heat transfer is high.

The foregoing is illustrative of the preferred embodiments of the present invention only, and is not to be construed as limiting the claims. The present invention is not limited to the above embodiments, and the specific structure thereof is allowed to be changed. All changes which come within the scope of the independent claims of the invention are to be embraced within their scope.

Claims

The waste incineration waste heat boiler with the front-mounted air preheater is characterized by comprising a waste heat boiler, an air preheater air inlet pipe (5), an air preheater heat exchange pipe fitting (3), an air preheater air outlet pipe (6), an air preheater support (8) and an air preheater support two (7), wherein the air preheater support (8) and the air preheater support two (7) horizontal intervals to be arranged at an inlet of a furnace chamber of the waste heat boiler, the air preheater heat exchange pipe fitting (3) is installed on the upper end face of the air preheater support (8) and the air preheater support two (7), the air preheater heat exchange pipe fitting (3) is arranged in a bent snake shape, an air inlet and an air outlet of the air preheater heat exchange pipe fitting (3) are arranged outside the waste heat boiler, the air inlet of the air preheater heat exchange pipe fitting (3) is communicated with the air inlet pipe (5), and the air outlet of the air preheater heat exchange pipe fitting (3) is communicated with the air outlet pipe (6).
2. waste incineration waste heat boiler with front air preheater as claimed in claim 1, wherein the waste heat boiler chamber is divided into three parts of chamber (1), chamber two (9) and chamber three (2), the chamber (1), chamber two (9) and chamber three (2) are connected with each other in turn.
3. waste incineration waste heat boiler with a front-mounted air preheater according to claim 1, wherein an air preheater support III (4) is arranged on the outer wall of the waste heat boiler near the heat exchange pipe (3) of the air preheater, and the air preheater air inlet pipe (5) is arranged on the lower end face of the air preheater support III (4).