CN210601657U

CN210601657U - Novel high-efficient heat accumulation formula heating power burn burning furnace

Info

Publication number: CN210601657U
Application number: CN201921149519.0U
Authority: CN
Inventors: 杨少康
Original assignee: Ruiqi Shanghai Environmental Engineering Technology Co ltd
Current assignee: Ruiqi Shanghai Environmental Engineering Technology Co ltd
Priority date: 2019-07-22
Filing date: 2019-07-22
Publication date: 2020-05-22
Anticipated expiration: 2029-07-22

Abstract

The utility model belongs to the technical field of exhaust-gas treatment. The current common regenerative thermal incinerator has low treatment efficiency on VOCs waste gas. Problem to prior art, the utility model discloses a novel high-efficient heat accumulation formula thermal incinerator, including the first regenerator that communicates in proper order, combustion chamber and second regenerator, be formed with the weir crest between first regenerator and the second regenerator, be equipped with a plurality of perforated plate on the weir crest, the equal vertical setting of each perforated plate all is equipped with a plurality of through-hole on each perforated plate, the height of perforated plate is 1/3 ~ 2/3 of combustion chamber height, all is provided with the heat accumulator in first regenerator and the second regenerator. The utility model discloses simple structure can prolong the VOCs waste gas air current that is close to weir crest position department and flow through the required time of combustion chamber to shorten the VOCs waste gas air current that keeps away from weir crest position department and flow through the required time of combustion chamber, thereby improve the homogeneity of VOCs waste gas dwell time in the combustion chamber, improve and burn the treatment effeciency of burning furnace to VOCs waste gas.

Description

Novel high-efficient heat accumulation formula heating power burn burning furnace

Technical Field

The invention relates to a heat accumulating type thermal incinerator, in particular to a novel efficient heat accumulating type thermal incinerator, and belongs to the technical field of waste gas treatment.

Background

The current engineering application design is used for volatile organic waste gasThe heat accumulation formula thermal incinerator (RTO) of administering, its structure is shown in figure 1, including first regenerator 01, combustion chamber 02 and the second regenerator 03 that communicates in proper order, is formed with weir mouth 04 between first regenerator 01 and the second regenerator 03, all is provided with regenerator 05 in first regenerator and the second regenerator, and its theory of operation is: after absorbing heat and raising temperature by the regenerator, the organic waste gas enters a combustion chamber for high-temperature incineration (800-1000 ℃) so that the organic matters are oxidized into CO₂And H₂And inorganic components such as O and the like are discharged at low temperature after passing through another heat storage chamber to store heat, the stored heat is used for preheating newly-entered organic waste gas, and the temperature of the hearth is kept stable by periodically changing the airflow direction. Compared with the traditional incineration process, the heat accumulating type thermal incinerator has the advantages of high purification rate and heat recovery rate (more than 95%), low operation cost and the like, and is mature and practical equipment for treating organic waste gas. However, when the equipment is used for treating the waste gas containing the VOCs, the flow track of the gas flow close to the weir notch 04 in the combustion chamber is much shorter than that of the gas flow far away from the weir notch, so that the retention time of the gas flow close to the weir notch 04 in the combustion chamber is much shorter than that of the gas flow far away from the weir notch, the retention time of the gas flow of the VOCs waste gas far away from the weir notch at different positions in the combustion chamber is very uneven, and the overall treatment efficiency of the Regenerative Thermal Oxidizer (RTO) on the waste gas containing the VOCs is seriously influenced.

In addition, when VOCS waste gas is reversed, a certain amount of VOCs waste gas can remain in the last heat-releasing regenerator, and the part of waste gas can be directly discharged out of the furnace body when the VOCs waste gas newly entering is treated next time, so that the treatment efficiency of the furnace body on the waste gas of VOCs can be reduced.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a novel high-efficiency heat accumulating type thermal incinerator, which can prolong the time required for VOCs waste gas airflow close to a weir port to flow through a combustion chamber and shorten the time required for VOCs waste gas airflow far away from the weir port to flow through the combustion chamber by additionally arranging a porous plate, thereby improving the uniformity of the retention time of the VOCs waste gas in the combustion chamber and improving the treatment efficiency of the incinerator on the VOCs waste gas.

In order to achieve the technical purpose, the technical scheme of the invention is as follows:

the utility model provides a novel high-efficient heat accumulation formula thermal incinerator, includes the first regenerator that communicates in proper order, combustion chamber and second regenerator, is formed with the weir crest between first regenerator and the second regenerator, is equipped with a plurality of perforated plate on the weir crest, and the equal vertical setting of each perforated plate all is equipped with a plurality of through-hole on each perforated plate, and the height of perforated plate is 1/3 ~ 2/3 of combustion chamber height, all is provided with the heat accumulator in first regenerator and the second regenerator.

As the preferred scheme, be equipped with the through-hole group that a plurality of rows evenly arranged along the perforated plate is horizontal on the perforated plate, the interval between the adjacent through-hole in every row of through-hole group increases in proper order from the adjacent through-hole in perforated plate top to the adjacent through-hole in bottom.

As the preferred scheme, be equipped with the through-hole group that a plurality of rows evenly arranged along the perforated plate is horizontal on the perforated plate, the through-hole aperture in every row of through-hole group reduces from perforated plate top through-hole to bottom through-hole in proper order.

Preferably, the through hole is square or round.

Preferably, the perforated plate has an aperture ratio of 20 to 65%.

Preferably, the incinerator further comprises a blowing device, a first air supply pipe and a second air supply pipe, the first air supply pipe is communicated with the first heat storage chamber, a first valve used for controlling the opening and closing of the first air supply pipe is arranged on the first air supply pipe, the second air supply pipe is communicated with the second heat storage chamber, a second valve used for controlling the opening and closing of the second air supply pipe is arranged on the second air supply pipe, the blowing device is communicated with the first air supply pipe and the second air supply pipe through air outlet pipes, and the blowing device is used for blowing gas in the first heat storage chamber or the second heat storage chamber into the combustion chamber.

As a further preferable scheme, the blowing device is a blower.

As a further preferable scheme, the gas outlet pipe is provided with a heating pipe for heating the gas passing through the gas outlet pipe.

Drawings

Fig. 1 is a schematic structural view of a conventional regenerative thermal oxidizer;

FIG. 2 is a schematic structural view of the present invention;

FIG. 3 is a schematic view of the structure of a multi-well plate according to the present invention;

FIG. 4 is a schematic diagram II of the structure of the multi-well plate of the present invention;

FIG. 5 is a schematic view III of the structure of the multi-well plate of the present invention;

reference numerals:

10. first regenerator 20, combustion chamber 30, second regenerator 40, weir 50, perforated plate 51, through hole 60, first air feed pipe 61, first valve 70, second air feed pipe 71, second valve 80, blowing device 90, air outlet pipe 91, heating pipe

Detailed Description

Several embodiments of the present invention are described in detail with reference to fig. 2 to 5, but the present invention is not limited in any way by the claims.

Example 1:

as shown in fig. 2 to 3, a novel efficient heat accumulating type thermal incinerator comprises a first heat accumulating chamber 10, a combustion chamber 20, a second heat accumulating chamber 30, a first air supply pipe 60, a second air supply pipe 70, an air blowing device 80 and an air outlet pipe 90;

the first heat storage chamber 10, the combustion chamber 20 and the second heat storage chamber 30 are sequentially communicated, heat accumulators are arranged in the first heat storage chamber 10 and the second heat storage chamber 30, a weir 40 is formed between the first heat storage chamber 10 and the second heat storage chamber 30, a plurality of porous plates 50 are arranged on the weir 40, each porous plate 50 is vertically arranged, the height of each porous plate 50 is 1/3-2/3 of the height of the combustion chamber 20, a plurality of rows of through hole groups which are uniformly distributed along the transverse direction of the porous plate 50 are arranged on each porous plate 50, each row of through hole groups comprises a plurality of through holes 51 which are vertically arranged, each through hole 51 can be square or circular, the distance between every two adjacent through holes 51 in each row of through hole groups is sequentially increased from the adjacent through hole 51 at the top of the porous plate 50 to the adjacent through hole 51 at the bottom of the porous plate 50, the opening condition on each porous plate 50 is the same, and the;

the first air supply pipe 60 is communicated with the first heat storage chamber 10, the first air supply pipe 60 is provided with a first valve 61 for controlling the opening and closing of the first air supply pipe 60, the second air supply pipe 70 is communicated with the second heat storage chamber 30, the second air supply pipe 70 is provided with a second valve for controlling the opening and closing of the second air supply pipe 70, the air blowing device 80 can be an air blower, the air blower is communicated with the first air supply pipe 60 and the second air supply pipe 70 through an air outlet pipe 90, the air blower is used for blowing gas in the first heat storage chamber 10 or the second heat storage chamber 30 into the combustion chamber 20, and the air outlet pipe 90 is provided with a heating pipe 91 for heating the gas passing through the air outlet pipe 90.

Example 2:

as shown in fig. 2 and 4, the present embodiment is different from embodiment 1 in that the perforated plate 50 of the present embodiment is provided with a plurality of rows of through-hole sets uniformly arranged along the transverse direction of the perforated plate 50, and the through-holes 51 in each row of through-hole sets decrease in diameter from the top through-holes 51 to the bottom through-holes 51 of the perforated plate 50.

Example 3:

as shown in fig. 2 and 5, the present embodiment is different from embodiment 1 in that a plurality of rows of through hole sets are uniformly arranged along the lateral direction of the perforated plate 50 on the perforated plate 50 in the present embodiment, the distance between adjacent through holes 51 in each row of through hole sets increases from the top adjacent through hole 51 to the bottom adjacent through hole 51 of the perforated plate 50, and the diameter of the through hole 51 in each row of through hole sets decreases from the top through hole 51 to the bottom through hole 51 of the perforated plate 50.

In summary, the invention has the following advantages:

1. according to the invention, the perforated plate 50 is arranged, and the perforated plate 50 is used for limiting the flow of the air flow flowing through the weir crest 40, so that the flow of the VOCs waste gas flow flowing through the weir crest 40 can be reduced, the flow velocity of the air is reduced, the time required by the VOCs waste gas flow flowing through the combustion chamber 20 at the position near the weir crest 40 is prolonged, meanwhile, the flow of the VOCS waste gas flow far away from the weir crest 40 is increased, the flow velocity of the air is increased, the time required by the VOCs waste gas flow far away from the weir crest 40 flowing through the combustion chamber 20 is shortened, the residence time uniformity of the VOCs waste gas in the combustion chamber 20 is improved, and the treatment efficiency of the incinerator on the VOCs waste gas is.

2. In the present invention, by providing blowers respectively communicated with the first regenerator 10 and the second regenerator 30 through the first air feed pipe 60 and the second air feed pipe 70, when the first round of purification of VOCs exhaust gas is finished (the VOCs exhaust gas firstly enters the first regenerator 10, then flows into the combustion chamber 20 to be combusted, and then flows out through the second regenerator 30, and simultaneously the VOCs exhaust gas is combusted to release heat so that the gas flowing into the second regenerator 30 has a higher temperature, and the heat accumulator in the second regenerator 30 is heated and then flows out to the outside), the blower is started, the first air feed valve 61 is opened, the blower blows gas into the first regenerator 10 through the first air feed pipe 60 and blows the VOCs exhaust gas remaining in the first regenerator 10 into the combustion chamber 20, and the VOCs exhaust gas can be combusted at the next purification, the blower and the first control valve are closed, and then the VOCs exhaust gas is purified for the second round, VOCS waste gas is blown into the second heat storage chamber 30, the part of VOCS waste gas enters the combustion chamber 20 after being heated by the heat accumulator in the second heat storage chamber 10, the VOCS waste gas is combusted and purified, then the VOCS waste gas flows to the outside through the first heat storage chamber 10, meanwhile, the heat accumulator in the first heat storage chamber is heated, then, an air blower is started, a second valve 71 is opened, the air blower blows into the second heat storage chamber 30 through the second air supply pipe 70, waste gas remained in the second heat storage chamber is blown into the combustion chamber 20, the part of organic waste gas can be combusted and purified next time, all discharged gas can be purified, and therefore the treatment efficiency of the furnace body on the VOCS waste gas can be improved.

3. According to the invention, the heating body is arranged on the gas outlet pipe 90, and heats the gas passing through the gas outlet pipe 90, so that the gas driving the residual VOCS waste gas into the combustion chamber 20 has higher temperature, and the part of gas with higher temperature can preheat the residual VOCS waste gas, thereby facilitating the combustion and purification of the VOCS waste gas in the combustion chamber 20.

It should be understood that the detailed description of the invention is merely illustrative of the invention and is not intended to limit the invention to the specific embodiments described. It will be appreciated by those skilled in the art that the present invention may be modified or substituted equally as well to achieve the same technical result; as long as the use requirements are met, the method is within the protection scope of the invention.

Claims

1. The utility model provides a novel high-efficient heat accumulation formula thermal incinerator, a serial communication port, including the first regenerator that communicates in proper order, combustion chamber and second regenerator, be formed with the weir crest between first regenerator and the second regenerator, be equipped with a plurality of perforated plate on the weir crest, the equal vertical setting of each perforated plate all is equipped with a plurality of through-hole on each perforated plate, the height of perforated plate is 1/3 ~ 2/3 of combustion chamber height, all is provided with the heat accumulator in first regenerator and the second regenerator.

2. The incinerator according to claim 1, wherein said perforated plate is provided with a plurality of rows of through-hole groups uniformly arranged in the transverse direction of the perforated plate, and the pitch between adjacent through-holes in each row of the through-hole groups increases in order from the top adjacent through-hole to the bottom adjacent through-hole of the perforated plate.

3. The incinerator according to claim 1, wherein said perforated plate is provided with a plurality of rows of through-hole groups uniformly arranged in the transverse direction of the perforated plate, and the diameter of the through-holes in each row of the through-hole groups decreases from the top through-hole to the bottom through-hole of the perforated plate.

4. The incinerator according to claim 1, wherein said through-holes are square or circular.

5. The incinerator according to claim 1, wherein the perforated plate has an opening ratio of 20 to 65%.

6. The incinerator according to claim 1, further comprising a blowing device, a first air supply pipe and a second air supply pipe, the first air supply pipe being communicated with the first heat storage chamber, the first air supply pipe being provided with a first valve for controlling opening and closing of the first air supply pipe, the second air supply pipe being communicated with the second heat storage chamber, the second air supply pipe being provided with a second valve for controlling opening and closing of the second air supply pipe, the blowing device being communicated with both the first air supply pipe and the second air supply pipe through an air outlet pipe, the blowing device being configured to blow gas in the first heat storage chamber or the second heat storage chamber into the combustion chamber.

7. An incinerator as claimed in claim 6, wherein said air blowing means is a blower.

8. An incinerator as claimed in claim 6, wherein said outlet duct is provided with heating tubes for heating the gas passing through the outlet duct.