CN213272647U

CN213272647U - Heat accumulating type waste gas combustion furnace convenient for low-temperature discharge

Info

Publication number: CN213272647U
Application number: CN202022150379.8U
Authority: CN
Inventors: 赵艳; 赵志远; 胡飞
Original assignee: Jiangsu Youshang Environmental Engineering Co ltd
Current assignee: Jiangsu Youshang Environmental Engineering Co ltd
Priority date: 2020-09-25
Filing date: 2020-09-25
Publication date: 2021-05-25
Anticipated expiration: 2030-09-25

Abstract

The application relates to a heat accumulating type waste gas combustion furnace convenient for low-temperature emission, which relates to the technical field of waste gas combustion oxidation and comprises a furnace body, an air inlet pipe, an air outlet box and a chimney, wherein the furnace body comprises a combustion chamber and a heat accumulating chamber which are sequentially arranged from top to bottom; the gas outlet box is positioned below the heat storage chamber, the heat storage chamber is provided with at least one gas outlet pipe, the gas outlet pipe is connected with a gas outlet valve, and one end of the gas outlet pipe extends into the gas outlet box; a plurality of cooling pieces are arranged in the gas outlet box, and the side wall of the gas outlet box is communicated with the chimney. The gas cooling furnace has the advantages that discharged gas in the furnace body is fully cooled, and the influence of gas emission after combustion treatment on the temperature of the surrounding environment is reduced.

Description

Heat accumulating type waste gas combustion furnace convenient for low-temperature discharge

Technical Field

The application relates to the field of waste gas combustion oxidation, in particular to a heat accumulating type waste gas combustion furnace convenient for low-temperature discharge.

Background

At present, the Regenerative Thermal Oxidizer (RTO) is a Regenerative Thermal Oxidizer (RTO) which heats the waste gas to a temperature above 700 ℃ to oxidize and decompose VOCs in the waste gas into CO₂And H₂And O. High-temperature gas generated by oxidation flows through the ceramic heat accumulator to ensure thatThe waste gas preheating device heats and stores heat, and is used for preheating subsequently entering organic waste gas, thereby saving fuel consumed by heating the waste gas.

Chinese patent publication No. CN108386851A discloses a three-chamber RTO regenerative burner body with a purging pipeline, which comprises a burner body, a combustion chamber, and a first regenerative chamber; the combustion chamber is arranged inside the furnace body; the combustor is arranged at the top of the combustion chamber and connected with the combustion chamber in an embedding manner; the first regenerative chamber is arranged below one side of the combustion chamber; the second regenerative chamber is arranged in the middle position below the combustion chamber; the third regenerative chamber is arranged below the other side of the combustion chamber; the supporting legs are arranged at the bottom of the furnace body and are connected with the furnace body in a welding mode; the main fan is arranged on one side of the furnace body. One end of the exhaust pipeline is connected with the chimney, and the other end of the exhaust pipeline is connected with the furnace body.

In view of the above-mentioned related art, the inventor believes that the RTO furnace in the related art discharges clean air subjected to combustion and oxidation treatment out of the furnace body through the exhaust duct and into the air through the chimney, but since the discharged air is just subjected to high-temperature combustion, the temperature of the air just discharged from the furnace body is high, and the surrounding environment is easily in a state of continuous high temperature, which is relatively unfavorable for the surrounding ecological environment.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that the temperature of the gas just discharged from the furnace body is high, and the surrounding environment is easy to be in a continuous high-temperature state, the application provides a regenerative waste gas combustion furnace convenient for low-temperature discharge.

The application provides a heat accumulation formula waste gas fires burning furnace convenient to low temperature is discharged adopts following technical scheme:

a heat accumulating type waste gas combustion furnace convenient for low-temperature discharge comprises a furnace body, an air inlet pipe, an air outlet box and a chimney, wherein the furnace body comprises a combustion chamber and a heat accumulation chamber which are sequentially arranged from top to bottom, and the air inlet pipe is introduced into the heat accumulation chamber; the gas outlet box is positioned below the regenerative chamber, the regenerative chamber is provided with at least one gas outlet pipe, the gas outlet pipe is connected with a gas outlet valve, and one end of the gas outlet pipe extends into the gas outlet box; and a plurality of cooling pieces are arranged in the gas outlet box, and the side wall of the gas outlet box is communicated with the chimney.

Through adopting above-mentioned technical scheme, the gas through combustion oxidation discharges from outlet duct and gets into in the gas-out case to discharge after being fully cooled off by the cooling part in the gas-out case, have the effect that reduces just from the internal combustion gas temperature of furnace, the too high condition of temperature that can reduce all ring edge borders takes place, the ecological environment construction of the periphery of being convenient for.

Optionally, the cooling element includes a grid frame and a plurality of mounting blocks, and the grid frame is placed in the air outlet box; the mounting blocks are arranged on the grid frame at intervals, and the mounting blocks are hollow and are communicated with each other through pipelines; and the cooling medium inlet pipe and the cooling medium outlet pipe are respectively communicated with one mounting block.

Through adopting above-mentioned technical scheme, the grid frame can be convenient for the interval and place the installation piece, and the gas that gets into in the gas-out case can flow in the interval of installation piece to be convenient for prolong gaseous heat transfer route. And because the grid frame makes the arrangement of the high-low dislocation of the mounting block, can be convenient for the gas fully cooled.

Optionally, a spoiler is connected in the accommodating space where the mounting block is not placed in the grid frame.

Through adopting above-mentioned technical scheme, vortex piece can prolong the time that gas stayed in the case of giving vent to anger to be convenient for strengthen the cooling effect of combustion gas.

Optionally, the spoiler is including installation pipe and the spoiler of connecting on the installation pipe periphery wall, the installation breach has been seted up to the one end of installation pipe, the axial of installation pipe is link up along the installation breach, the installation pipe is installed on the pillar that forms the grid frame through the installation breach.

Through adopting above-mentioned technical scheme, the installation pipe can be installed on the pillar of grid frame through the installation breach, and the dismouting is comparatively simple and convenient and be convenient for change the position of vortex piece and the orientation of spoiler. The spoiler on the mounting pipe can be enabled to face the grid space which is spaced according to the position of the mounting block, and the spoiler is used for prolonging the staying time of the gas in the gas outlet box, so that the gas can be sufficiently cooled.

Optionally, one end of the cooling medium inlet pipe and one end of the cooling medium outlet pipe extending out of the air outlet tank are connected with a circulating pump.

Through adopting above-mentioned technical scheme, the circulating pump is used for cooling medium circulation for the medium in the installation piece can keep at suitable cooling temperature.

Optionally, the edge of the mounting block is connected with a shock pad.

By adopting the technical scheme, the damping pad is used for reducing the noise generated by collision of the grid frame and the mounting block when the gas flow is not smooth.

Optionally, the grid frame comprises a plurality of stacked grid layers.

Through adopting above-mentioned technical scheme, the grid frame piles up through the grid layer and forms, can be more convenient for connect installation piece and vortex piece.

Optionally, the inner wall of the gas outlet box and the outer wall of the heat storage box facing the gas outlet box are connected with heat insulation pieces.

Through adopting above-mentioned technical scheme, the heat insulating part is used for reducing the influence of the inside low temperature of the case of giving vent to anger to the temperature in the heat accumulation chamber, and also can reduce the influence of outside temperature and the high temperature in the heat accumulation chamber to the inside temperature of the case of giving vent to anger, has heat retaining effect.

In summary, the present application includes at least one of the following beneficial technical effects:

1. through the arrangement of the gas outlet box and the cooling piece, the effects of fully cooling gas discharged from the furnace body and reducing the influence of gas discharge after combustion treatment on the temperature of the surrounding environment can be achieved;

2. through the arrangement of the grid frame and the mounting block containing the cooling medium, the cooling path of the gas in the gas outlet box can be prolonged, and the gas can be sufficiently cooled;

3. through the setting of installation pipe, installation breach, spoiler, can play and make the time that the gas that gets into in the gas box stops in the case of giving vent to anger longer to be convenient for the gas by abundant refrigerated effect.

Drawings

Fig. 1 is a schematic sectional view of a regenerative waste gas burner according to the present application.

Fig. 2 is a schematic view of the overall structure of the cooling member according to the embodiment of the present application.

Fig. 3 is a partially enlarged schematic view of a portion a in fig. 2.

Description of reference numerals: 1. a furnace body; 11. a combustion chamber; 111. a burner; 12. a first regenerator; 13. a second regenerator; 14. a third regenerator; 15. a heat accumulator; 2. an air inlet pipe; 21. purging the fan; 22. a blowpipe; 3. an air outlet pipe; 31. an air outlet valve; 32. an air outlet box; 33. a thermal insulation member; 4. a grid frame; 41. a grid layer; 42. mounting blocks; 43. a shock pad; 5. a circulation pump; 51. a cooling medium inlet pipe; 52. a cooling medium outlet pipe; 6. a spoiler; 61. installing a pipe; 611. installing a notch; 62. a spoiler; 7. and (4) a chimney.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses heat accumulation formula waste gas fires burning furnace convenient to low temperature is discharged. Referring to fig. 1, a regenerative waste gas burner for facilitating low-temperature discharge includes a furnace body 1, an outlet box 32, and a chimney 7 connected to each other, and an inlet pipe 2 and a blowing pipe 22 are connected to the furnace body 1. The air inlet pipe 2 is used for introducing waste gas into the furnace body 1, and the blowing pipe 22 is connected with a purging fan 21 and purges the furnace body 1 through the purging fan 21. The exhaust gas is subjected to combustion oxidation treatment in the furnace body 1, then enters the gas outlet box 32 for cooling, and the cooled clean gas is discharged through the chimney 7.

Referring to fig. 1, a combustion chamber 11 and a heat storage chamber are sequentially arranged in a furnace body 1 from top to bottom, a burner 111 is connected to the top of the furnace body 1 in the combustion chamber 11, the heat storage chamber is communicated with the combustion chamber 11 and is divided into a first heat storage chamber 12, a second heat storage chamber 13 and a third heat storage chamber 14 which are arranged in parallel, and heat storage bodies 15 are arranged in the first heat storage chamber 12, the second heat storage chamber 13 and the third heat storage chamber 14. The air inlet pipe 2 is sequentially communicated with the first heat storage chamber 12, the second heat storage chamber 13 and the third heat storage chamber 14 from one side, the air blowing pipe 22 is sequentially communicated with the third heat storage chamber 14, the second heat storage chamber 13 and the first heat storage chamber 12 from the other side, and valves are connected to branch pipes, located in the first heat storage chamber 12, the second heat storage chamber 13 and the third heat storage chamber 14, of the air inlet pipe 2 and the air blowing pipe 22 and used for controlling circulation of waste gas and blowing air.

Referring to fig. 1, the bottom of each of the first regenerator 12, the second regenerator 13 and the third regenerator 14 is connected with an air outlet pipe 3, and the air outlet pipe 3 is connected with an air outlet valve 31. The gas outlet box 32 is positioned below the regenerator, and the gas outlet pipe 3 is communicated into the gas outlet box 32. A cooling part is arranged in the gas outlet box 32 and is used for cooling the clean gas discharged from the gas outlet pipe 3. The inner wall of the gas outlet box 32 and the outer wall of the furnace body 1 facing one side of the gas outlet box 32 are both connected with heat insulation pieces 33, and the heat insulation pieces 33 can adopt heat insulation cotton, so that the mutual influence of the temperature between the gas outlet box 32 and the furnace body 1 can be reduced.

Referring to fig. 1 and 2, the cooling member includes a grid frame 4 formed by stacking grid layers 41 and a mounting block 42 mounted in the grid frame 4. The mounting blocks 42 are hollow and communicated with each other through a pipeline, one of the mounting blocks 42 on one side of the grid frame 4 is connected with a cooling medium inlet pipe 51, one of the mounting blocks 42 on the other side of the grid frame 4 is connected with a cooling medium outlet pipe 52, and the cooling medium inlet pipe 51 and the cooling medium outlet pipe 52 extend out of the air outlet tank 32 and are connected with a circulating pump 5. The cooling liquid is introduced into the mounting block 42 through the cooling medium inlet pipe 51 and is periodically circulated by the circulation pump 5, so that the cooling liquid in the mounting block 42 can be maintained at a stable cooling temperature. The clean gas introduced into the outlet pipe 3 circulates in the space of the mounting block 42 and flows out of the outlet box 32 after being sufficiently cooled.

Referring to fig. 2 and 3, when the outlet pipe 3 discharges gas into the outlet box 32, the grating frame 4 is vibrated by the impact and disturbance of the gas flow, and a shock pad 43 is connected to the edge of the mounting block 42 to reduce the noise generated by the collision between the grating frame 4 and the mounting block 42.

Referring to fig. 2 and 3, in order to better prolong the circulation time of the clean gas in the outlet box 32, the spoiler 6 is connected in the accommodating space of the grid frame 4 where the mounting block 42 is not placed, the spoiler 6 includes a mounting pipe 61 and a spoiler 62 connected to the outer peripheral wall of the mounting pipe 61, a mounting notch 611 is formed in one end of the mounting pipe 61, the mounting notch 611 penetrates through the mounting pipe 61 in the axial direction, and the mounting pipe 61 is mounted on the pillars forming the grid frame 4 through the mounting notch 611. The clean gas may be more sufficiently cooled by the longer path that the clean gas flows in the space between the mounting blocks 42 under the turbulence of the spoiler 62.

The implementation principle of the heat accumulating type waste gas combustion furnace convenient for low-temperature discharge in the embodiment of the application is as follows: the exhaust gas enters the first regenerator 12 through the gas inlet pipe 2, and contacts the heat storage body 15 in the first regenerator 12, and the heat storage body 15 is heated in the previous cycle, so that the exhaust gas can absorb heat and raise the temperature of the exhaust gas when contacting the heat storage body 15. The exhaust gas continues to rise into the combustion chamber 11, and the burner 111 burns the fuel to release heat, so that the exhaust gas rises to a predetermined oxidation temperature, and organic matter in the exhaust gas is decomposed into carbon dioxide and water. Since the exhaust gas is preheated by the first regenerator 12 and the exhaust gas is oxidized to release a certain amount of heat, the amount of fuel used in the burner 111 is small.

Waste gas enters the second heat storage chamber 13 after being purified and contacts with the heat storage body 15 in the second heat storage chamber 134, and the heat storage body 15 is cooled by back flushing in the last cycle, so that heat carried by clean gas can be absorbed in the contact process, and the heat is stored and used for preheating waste gas in the next cycle. One part of the cooled clean gas is discharged through the gas outlet pipe 3, and the other part of the cooled clean gas is conveyed to the blowpipe 22 through the purging fan 21 to be used as a blowback gas source. Compared with air, the back-blowing air source is relatively clean after purification, and the removal rate of VOCs is improved.

The blowback air source enters the third heat storage chamber 14, and the third heat storage chamber 14 is subjected to blowback cooling in the cycle. After the circulation is finished, the valve is switched, so that the second heat storage chamber 13 is filled with air, the third heat storage chamber 14 is exhausted with air, and the first heat storage chamber 12 is subjected to back flushing; and after the operation is finished, the next cycle is carried out, the air is fed into the third heat storage chamber 14, the air is discharged from the first heat storage chamber 12, and the second heat storage chamber 13 is subjected to back blowing, so that the operation is continuously alternated, and the waste gas purification operation of the RTO furnace can be finished. The treated gas enters the gas outlet box 32 through the gas outlet pipe 3, flows in the gap of the mounting block 42, is fully cooled and then is discharged through the chimney 7.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a heat accumulation formula waste gas fires burning furnace convenient to low temperature emission which characterized in that: the furnace comprises a furnace body (1), an air inlet pipe (2), an air outlet box (32) and a chimney (7), wherein the furnace body (1) comprises a combustion chamber (11) and a heat storage chamber which are sequentially arranged from top to bottom, and the air inlet pipe (2) is introduced into the heat storage chamber; the gas outlet box (32) is positioned below the regenerative chamber, the regenerative chamber is provided with at least one gas outlet pipe (3), the gas outlet pipe (3) is connected with a gas outlet valve (31), and one end of the gas outlet pipe (3) extends into the gas outlet box (32); a plurality of cooling pieces are arranged in the air outlet box (32), and the side wall of the air outlet box (32) is communicated with the chimney (7).

2. A regenerative exhaust gas combustion furnace facilitating low temperature discharge as set forth in claim 1, wherein: the cooling part comprises a grid frame (4) and a plurality of mounting blocks (42), and the grid frame (4) is placed in the air outlet box (32); the mounting blocks (42) are arranged on the grid frame (4) at intervals, and the mounting blocks (42) are hollow and are communicated with each other through pipelines; and a cooling medium inlet pipe (51) and a cooling medium outlet pipe (52) are connected to the outer part of the air outlet box (32), and the cooling medium inlet pipe (51) and the cooling medium outlet pipe (52) are respectively communicated with one mounting block (42).

3. A regenerative exhaust gas combustion furnace facilitating low temperature discharge as set forth in claim 2, wherein: and a spoiler (6) is connected in the accommodating space of the grid frame (4) where the mounting block (42) is not arranged.

4. A regenerative exhaust gas combustion furnace facilitating low temperature discharge as set forth in claim 3 wherein: spoiler (6) are including installation pipe (61) and spoiler (62) of being connected on installation pipe (61) periphery wall, installation breach (611) have been seted up to the one end of installation pipe (61), installation breach (611) link up along the axial of installation pipe (61), installation pipe (61) are installed on the pillar that forms grid frame (4) through installation breach (611).

5. A regenerative exhaust gas combustion furnace facilitating low temperature discharge as set forth in claim 2, wherein: one end of the cooling medium inlet pipe (51) and one end of the cooling medium outlet pipe (52) extending out of the air outlet tank (32) are connected with a circulating pump (5).

6. A regenerative exhaust gas combustion furnace facilitating low temperature discharge as set forth in claim 2, wherein: the edge of the mounting block (42) is connected with a shock pad (43).

7. A regenerative exhaust gas combustion furnace facilitating low temperature discharge as set forth in claim 2, wherein: the grid frame (4) comprises a plurality of stacked grid layers (41).

8. A regenerative exhaust gas combustion furnace facilitating low temperature discharge as set forth in claim 1, wherein: and a heat insulation piece (33) is connected to the inner wall of the gas outlet box (32) and the outer wall of one side of the heat storage box, which faces the gas outlet box (32).