CN215808548U

CN215808548U - Direct combustion type waste gas incineration device

Info

Publication number: CN215808548U
Application number: CN202121931422.2U
Authority: CN
Inventors: 廖精华; 何升宝; 李中源; 辛爱琴
Original assignee: Fujian Aierpu Environmental Protection Co ltd
Current assignee: Fujian Aierpu Environmental Protection Co ltd
Priority date: 2021-08-18
Filing date: 2021-08-18
Publication date: 2022-02-11
Anticipated expiration: 2031-08-18

Abstract

The application provides a direct combustion formula waste gas burns device, including furnace body, the inside first heat accumulation wall and the second heat accumulation wall that sets gradually according to the air current direction of furnace body, combustor, temperature sensor, the furnace body is inside to be established unique whirl structure, and under the effect of continuous twice heat accumulation wall, can increase waste gas and be in the inside turbulence degree of furnace body for it is more abundant, more even to be heated, improves the device treatment effeciency.

Description

Direct combustion type waste gas incineration device

Technical Field

The application relates to a direct-fired waste gas incineration device, which belongs to the technical field of organic waste gas treatment.

Background

The direct combustion type waste gas incineration (TO) is a technology of heating the organic mixed waste gas TO a temperature above the spontaneous combustion temperature (e.g., 800 ℃) by using heat generated by combustion of an auxiliary fuel (e.g., natural gas), so that pollutants and oxygen undergo an oxidation reaction TO be decomposed into CO2 and H2O and release reaction heat. Because the device is simple and easy, advantages such as treatment effeciency height are widely used in the VOCs-containing waste gas treatment of industrial enterprises, especially the enterprises that need a large amount of heat source utilization.

The conventional TO device is prone TO the following problems during use: 1. the waste gas has bias flow and dead angle in the TO device, effective turbulence is not formed, high temperature is concentrated, heating is uneven, and therefore the waste gas is not completely combusted. 2. The concentration or air volume fluctuation of the treated waste gas easily causes temperature fluctuation in the TO device, and in order TO maintain a specific temperature, the auxiliary fuel quantity needs TO be adjusted correspondingly, so that great heat loss is caused. The above conditions all affect the processing effect and the use cost of the device to different degrees.

Disclosure of Invention

The application provides a direct combustion formula waste gas burns device can ensure that the waste gas gets into device back fully to be heated evenly, improves device treatment effeciency.

In order to achieve the above object, the technical solution of the present application is as follows.

A direct combustion type waste gas incineration device comprises a furnace body, a first heat storage wall and a second heat storage wall which are sequentially arranged in the furnace body according to the airflow direction, a burner and a temperature sensor, wherein the furnace body comprises a shell, a first heat preservation layer and a second heat preservation layer which are sequentially lined on the inner wall of the shell, a burner mounting seat, an air inlet, an air outlet, an explosion venting port, a temperature measuring port and a saddle-type support, the shell is a tubular barrel which is formed by rolling steel plates, a left circular sealing plate and a right circular sealing plate are respectively welded at the two ends of the tubular barrel, the shell is horizontally supported and fixed by the saddle-type support which is not less than 2, the burner mounting seat is vertically arranged in the center of the left circular sealing plate, one end of the burner mounting seat extends into the shell and exceeds 1/2 flame length, the other end of the burner is provided with the burner, the air inlet is arranged between the left circular sealing plate and the first heat storage wall and is tangentially arranged on the outer wall of the tubular barrel, the gas outlet is vertically arranged in the center of the right circular sealing plate in a penetrating mode, the explosion venting port is located between the first heat storage wall and the second heat storage wall and penetrates through the outer wall of the tubular barrel, the temperature measuring port is located between the second heat storage wall and the right circular sealing plate and penetrates through the outer wall of the tubular barrel, and the temperature sensor is arranged in the temperature measuring port in a penetrating mode.

Furthermore, the first heat storage wall is an annular wall formed by stacking porous refractory bricks, the wall surface of the annular wall is perpendicular to the airflow direction, the overflowing area of the central hole of the annular wall is not larger than that of the air inlet, the second heat storage wall is a circular wall formed by stacking porous refractory bricks, the wall surface of the circular wall is perpendicular to the airflow direction, and the directions of the through holes of the porous refractory bricks are consistent with the airflow direction.

Furthermore, the first heat preservation layer is made of ceramic fibers, the second heat preservation layer is made of refractory castable, and the first heat preservation layer and the second heat preservation layer are fixed on the inner surface of the shell through heat preservation nails.

Further, the combustor has an output power 0-100% proportion adjusting function, and an electric signal of the combustor is interlocked with an electric signal of the temperature sensor.

The beneficial effect of this application does: the device is got into by the processing waste gas tangential inside the furnace body, with come from the high-temperature gas whirl that the combustor produced mixes, and waste gas does not directly impact flame center, has avoided local overheated problem, is heated more evenly, first heat accumulation wall and second heat accumulation wall can the heat storage on the one hand, can carry out the heat exchange with the gas that passes its through-hole, avoid the heat loss too fast, and on the other hand can produce effective torrent to gas, make heat distribution is more even in the furnace body, consequently, can reach higher treatment effeciency.

Drawings

Fig. 1 is a schematic structural view (front sectional view) of the present application.

Fig. 2 is a left side view of the present application.

Fig. 3 is an enlarged view of a portion of fig. 1 of the present application.

Detailed Description

The present application is further described with reference to the following examples in conjunction with the accompanying drawings.

As shown in figures 1 and 2, a direct combustion type waste gas incineration device comprises a furnace body 1, a first heat storage wall 2 and a second heat storage wall 3 which are sequentially arranged in the furnace body according to the airflow direction, a combustor 4 and a temperature sensor 5, wherein the furnace body 1 comprises a shell 11, a first heat insulation layer 12 and a second heat insulation layer 13 which are sequentially lined on the inner wall of the shell 11, a combustor mounting seat 14, an air inlet 15, an air outlet 16, an explosion relief port 17, a temperature measurement port 18 and a saddle type support 19, the shell 11 is a tubular cylinder 111 which is formed by rolling a steel plate, a left circular seal plate 112 and a right circular seal plate 113 are respectively welded at two ends of the shell 11, the shell 11 is horizontally supported and fixed by the saddle type support 19 which is not less than 2, the combustor mounting seat 4 vertically penetrates through the center of the left circular seal plate 112, one end of the combustor mounting seat extends into the shell 11 to exceed 1/2 flame length, the combustor 4 is mounted at the other end of the combustor, the air inlet 15 is positioned between the left circular seal plate 112 and the first heat storage wall 2 and tangentially penetrates through the outer wall 111 The air outlet 16 vertically penetrates through the center of the right circular sealing plate 113, the explosion venting port 17 is positioned between the first heat storage wall 2 and the second heat storage wall 3 and penetrates through the outer wall of the tubular cylinder 111, the temperature measuring port 18 is positioned between the second heat storage wall 3 and the right circular sealing plate 113 and penetrates through the outer wall of the tubular cylinder 111, and the temperature sensor 5 is installed at the temperature measuring port 18 in a penetrating manner.

Specifically, as shown in fig. 1, the first heat storage wall 2 is an annular wall formed by stacking porous refractory bricks, the wall surface of the annular wall is perpendicular to the airflow direction, the overflowing area of the central hole of the annular wall is not larger than that of the air inlet 15, the second heat storage wall 3 is a circular wall formed by stacking porous refractory bricks, the wall surface of the circular wall is perpendicular to the airflow direction, and the directions of the through holes of the porous refractory bricks are all consistent with the airflow direction.

Specifically, as shown in fig. 1 and 3, the first insulating layer 12 is made of ceramic fiber, the second insulating layer 13 is made of refractory castable, and both the first insulating layer 12 and the second insulating layer 13 are fixed on the inner surface of the housing 11 by insulating nails (not shown).

Specifically, as shown in fig. 1, the burner 4 has a function of adjusting the output power by a ratio of 0% to 100%, and its electric signal is interlocked with the electric signal of the temperature sensor 5.

The utility model provides a direct combustion formula waste gas burns device, its key one lies in furnace body 1 inside unique whirl structure and built-in twice heat accumulation wall, it is inside by the quick tangential entering furnace body 1 of air inlet 15 under the use of peripheral hardware fan to be handled waste gas, produce the whirl and mix with it around the high-temperature gas that combustor 4 produced, receive the effect of first heat accumulation wall 2, partly gaseous compelled flow to flame just to the position then passes the centre bore of first heat accumulation wall 2, another part is gaseous then passes first heat accumulation wall 2 through the through-hole of porous resistant firebrick, pollutant in the waste gas is heated back and takes place the burning with oxygen, release the reaction heat, then gaseous through-hole by porous resistant firebrick passes second heat accumulation wall 3, high-temperature gas after the purification is finally discharged from gas outlet 16. The key point of the application is that the detection value of the temperature sensor 5 is automatically controlled at a set temperature value through a PLC control system, and the control system automatically adjusts the output power of the combustor 4 according to the difference value PID between the detection value of the temperature sensor 5 and the set temperature value; when the difference increases, the output power of the combustor 4 is reduced; conversely, when the difference value decreases, the output power of the combustor 4 is increased; when the difference is 0, the current output power of the combustor 4 is maintained. Because the heat accumulation wall has the heat storage function, when waste gas concentration or amount of wind change, can alleviate the temperature fluctuation range in furnace body 1 to a certain extent for the waste gas burning is more complete, more stable, and the device treatment effeciency is higher.

It should be noted that the above-mentioned embodiments are only examples of the present application and are not intended to limit the scope of the claims of the present application, and all modifications, equivalents, improvements and the like that are made within the spirit and principle of the present application should be included in the scope of the present application.

Claims

1. A direct combustion type waste gas incineration device is characterized by comprising a furnace body (1), a first heat storage wall (2) and a second heat storage wall (3) which are sequentially arranged in the furnace body according to the airflow direction, a burner (4) and a temperature sensor (5), wherein the furnace body (1) comprises a shell (11), a first heat insulation layer (12) and a second heat insulation layer (13) which are sequentially lined on the inner wall of the shell (11), a burner mounting seat (14), an air inlet (15), an air outlet (16), an explosion venting port (17), a temperature measuring port (18) and a saddle-type support seat (19), the shell (11) is a tubular barrel (111) which is formed by rolling a steel plate, a left circular sealing plate (112) and a right circular sealing plate (113) are respectively welded at the two ends of the shell (11), the saddle-type support seat (19) is horizontally supported and fixed, the burner mounting seat (14) vertically penetrates through the center of the left circular sealing plate (112), one end of the temperature measuring port extends into the shell (11) and exceeds 1/2 flame length, the other end of the temperature measuring port is provided with the combustor (4), the air inlet (15) is positioned between the left circular sealing plate (112) and the first heat storage wall (2) and tangentially penetrates through the outer wall of the tubular cylinder (111), the air outlet (16) vertically penetrates through the center of the right circular sealing plate (113), the explosion venting port (17) is positioned between the first heat storage wall (2) and the second heat storage wall (3) and penetrates through the outer wall of the tubular cylinder (111), the temperature measuring port (18) is positioned between the second heat storage wall (3) and the right circular sealing plate (113) and penetrates through the outer wall of the tubular cylinder (111), and the temperature sensor (5) is installed in the temperature measuring port (18) in a penetrating manner.

2. A direct combustion type waste gas incinerator according to claim 1, wherein said first heat accumulating wall (2) is an annular wall constructed by stacking porous refractory bricks, the wall surface of said annular wall is perpendicular to the direction of air flow, the flow area of the central hole is not larger than the flow area of said air inlet (15), said second heat accumulating wall (3) is a circular wall constructed by stacking porous refractory bricks, the wall surface of said circular wall is perpendicular to the direction of air flow, and the direction of the through holes of said porous refractory bricks is the same as the direction of air flow.

3. A direct combustion type waste gas incinerator according to claim 1, wherein said first insulating layer (12) is made of ceramic fiber, said second insulating layer (13) is made of refractory castable, and said first insulating layer (12) and said second insulating layer (13) are fixed to the inner surface of said housing (11) by insulating nails.

4. A direct combustion type exhaust gas incineration apparatus as claimed in claim 1, characterized in that said combustion engine (4) has a proportional regulation function of output power of 0-100%, and its electric signal is interlocked with the electric signal of said temperature sensor (5).