JP2000193228A - Combustion type deodorizer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To economically and assuredly deodorize a high concentration gas while suppressing a cost. SOLUTION: A deodorizer 1 comprises an exhaust gas distributing part 2 in a lower stage part, a heat storage part 3 in an intermediate stage part and a combustion chamber 4 in an upper stage. In the heat storage part 3, an exhaust gas communicating chamber 23 partitioned by a partition wall 22 is formed in the periphery of a shaft 21 so that an opening part 23b in a lower end side communicates with the distributing chamber 6 of the exhaust gas distributing part 2. The exhaust gas distributing part 2 is provided with a combustion exhaust gas distributing valve 15 through which the opening part 23b in the lower end side of a part of the exhaust gas communicating chamber 23 communicates with a combustion exhaust gas exhaust pipe 11. The combustion exhaust gas distributing valve 15 is rotated to change the flow of the exhaust gas in the exhaust gas communicating chamber 23. In the combustion chamber 4, a plurality of cooling pipes 32 of U-shape in plan view are provided. When combustion temperature in the combustion chamber 4 rises higher than target combustion chamber, cooling air is supplied to the cooling pipes 32 to suppress the combustion temperature.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combustion type deodorizing apparatus for purifying odorous exhaust gas discharged from a paint factory, a chemical factory, etc., and processing the odorous exhaust gas into odorless exhaust gas.

[0002]

2. Description of the Related Art In general, there are various methods of purifying odorous exhaust gas discharged from a paint factory or a chemical factory and treating it as odorless exhaust gas, such as a combustion method, a cleaning method, and an adsorption method. The deodorization technology by the combustion method has been practically used for a long time. The odor components contained in the odorous exhaust gas are usually organic substances, and when they reach a high temperature of about 800 ° C., they burn and then decompose. That is, when the odorous exhaust gas is burned at a high temperature, the odorous component is decomposed and purified into an odorless exhaust gas. And, the combustion method is
It is based on this idea.

[0003] The deodorizing treatment by the above-mentioned combustion method is a reliable method having high deodorizing performance, but on the other hand, it is economically disadvantageous because a large amount of fuel is required to raise the temperature. Therefore, in order to solve this drawback, a regenerative combustion type deodorizing method has recently been developed. This regenerative combustion type deodorizing method is an economical method that has high deodorizing performance and uses a small amount of fuel, and is extremely superior to conventional methods.

Here, a description will be given of a combustion type deodorizing apparatus using the regenerative combustion type deodorizing method. This device is generally composed of three parts, an exhaust gas distribution part, a heat storage part, and a combustion chamber, and these parts are generally arranged vertically and integrated. In addition, even if they are integrated in appearance, they may be divided into several units. In a vertically integrated device, the lower portion of the device is an exhaust gas distribution portion, the middle portion is a heat storage portion, and the upper portion is a combustion chamber.

In such an apparatus, the exhaust gas to be treated enters the lower exhaust gas distribution section, and is then distributed and supplied to the upper heat storage section. The heat storage section is provided with a plurality of chambers along the flow of gas, and at the lower part of these chambers, about half of the plurality of chambers are used as exhaust gas passages flowing upward, and other chambers are provided. A flue gas distribution valve is provided which makes a half of the chambers a passage for exhaust gas flowing downward. By rotating the combustion exhaust gas distribution valve, the flow direction of the exhaust gas in the chamber is changed one by one.

In a normal case, the direction of the flow of exhaust gas in the chamber changes at a speed of one rotation per minute. Therefore, the exhaust gas flows upward in the chamber of the heat storage unit for several tens of seconds, and thereafter stops flowing, and then flows downward. Exhaust gas usually enters at normal temperature, is heated by the heat storage chamber of the heat storage unit when flowing upward, and 80 when reaching the upper part of the heat storage unit.
The temperature becomes high near 0 ° C. The high temperature exhaust gas enters the upper combustion chamber, is further heated by the combustion burner, and rises to a target exhaust gas combustion temperature. The odor components in the exhaust gas are all decomposed at this combustion temperature.

Next, the exhaust gas after the combustion is directed downward, enters another chamber of the heat storage section, and flows downward. At this time, since the temperature of the exhaust gas is higher than the temperature of the heat storage unit, heat is applied to the heat storage unit to cool itself. Thereafter, the exhaust gas is cooled to about 60 ° C. at the outlet of the heat storage unit in the downward direction, and is discharged to the outside by a distribution mechanism provided below. In other words, when viewed from the heat storage unit side, in the chamber where the exhaust gas flows upward, the heat storage unit is cooled by the exhaust gas,
In the chamber in which the exhaust gas flows downward, the heat storage section is heated by the exhaust gas to store heat.

As described above, in the above-mentioned apparatus, the chamber in which the exhaust gas flows upward and the chamber in which the exhaust gas flows downward are sequentially replaced by the rotation of the combustion exhaust gas distribution valve. Exhaust gas is constantly heated, burned and cooled to be continuously processed. That is, this is the basic principle of the regenerative combustion type deodorizer.

However, this type of combustion type deodorizer can perform reasonable treatment when the odor component in the exhaust gas has a low concentration, but cannot treat it when the odor component is high. The reason is as follows. The odor component is usually an organic substance, which generates heat of combustion when it is decomposed by combustion, and this heat raises the exhaust gas to a target high temperature. If the combustion heat is low,
Furthermore, it is heated by a burner in the combustion chamber. When the concentration is high, the combustion heat increases, so that the temperature of the combustion exhaust gas in the upper combustion chamber may be higher than the target temperature.

[0010] At this time, the burner is stopped, but the temperature may still be high and the safety limit may be exceeded. The temperature inside the combustion chamber is usually set at about 820 ° C.
Operation in a state exceeding a high temperature of 1000C or 1000C is dangerous in terms of the structure of the apparatus. When the temperature in the combustion chamber becomes high as described above, the temperature of the combustion exhaust gas is not sufficiently cooled at the outlet of the heat storage unit and comes out, and the combustion exhaust gas directly enters the exhaust gas distribution mechanism at the lower portion of the apparatus. . Then, the exhaust gas distribution mechanism is heated to a normal operating temperature or more by the high-temperature combustion exhaust gas that cannot be completely cooled, and thermally expands, which may cause various troubles in each part of the exhaust gas distribution mechanism. This problem is an unavoidable problem in principle of the regenerative combustion type deodorizing device, and is a problem that requires ingenuity.

Therefore, conventionally, as a countermeasure in such a case, a method of blowing a large amount of air from the outside into the upper combustion chamber and simultaneously discharging high-temperature combustion exhaust gas from the combustion chamber to the outside has been implemented. ing.

[0012]

However, in the above method, the operation becomes unstable, the operation sequence becomes complicated, and an expensive heat-resistant steel control valve is provided in a duct for discharging high-temperature combustion exhaust gas. There is a disadvantage that must be installed. As another method, there is a method in which high-concentration exhaust gas is diluted in advance with air and supplied to a deodorizing device. However, in this method, the amount of exhaust gas increases, which is economically disadvantageous and is not practical. As described above, the conventional technique does not sufficiently solve a major problem in treating a high-concentration exhaust gas containing a large amount of organic substances.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and is a regenerative combustion type deodorizer capable of reliably deodorizing high-concentration exhaust gas economically and stably while suppressing costs. It is intended to provide.

[0014]

According to a first aspect of the present invention, there is provided a combustion-type deodorizing apparatus, comprising: a combustion chamber for deodorizing by burning an odor component of an odorous exhaust gas; A plurality of exhaust gas communication paths are provided through which the odorous exhaust gas is passed and the combustion gas discharged from the combustion chamber is passed, and the heat of the combustion exhaust gas is switched by sequentially switching the flow of the exhaust gas in the exhaust gas communication path. Heat storage in the exhaust gas communication passage in order, thereafter, passing the odorous exhaust gas through the heat-stored exhaust gas communication passage, heating the odorous exhaust gas and sending it to the combustion chamber; A cooling gas is passed through the chamber, and a cooling pipe for cooling the combustion chamber by the cooling gas is provided.

As described above, since the cooling pipe through which the cooling gas is passed is provided in the combustion chamber, since the odor component in the exhaust gas is high in concentration, the odor component is burned and decomposed to generate combustion heat. When the temperature in the combustion chamber becomes higher than the target combustion temperature, the temperature in the combustion chamber can be reduced to the target combustion temperature by passing the cooling gas through the cooling pipe. As a result, the combustion chamber becomes higher than the target combustion temperature due to the large combustion heat generated by the combustion decomposition of the odor component, and the heat generated by exceeding the design temperature by the combustion exhaust gas in each part such as the combustion chamber and the heat storage section. Occurrence of an obstacle due to deformation or thermal stress can be reliably prevented, and the odorous exhaust gas can be deodorized in a stable and favorable state at all times.

That is, what can be applied only to the treatment of low-concentration exhaust gas can be applied to the treatment of medium- and high-concentration exhaust gas. That is, the application range of the device can be widened while utilizing the advantage of the heat storage type having extremely excellent thermal efficiency. Also, compared with the case where a large amount of air is blown into the combustion chamber from the outside and the high temperature combustion exhaust gas is simultaneously discharged from the combustion chamber to the outside and cooling is performed, the operation sequence is not complicated, and the high temperature No expensive heat-resistant steel control valve or the like used for releasing the combustion gas is required. Moreover, unlike the case where the concentration of the odor component is reduced by previously diluting the exhaust gas with air, the amount of the exhaust gas to be subjected to the odor treatment is not increased, which is extremely economically advantageous.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A combustion type deodorizing apparatus according to an embodiment of the present invention will be described with reference to the drawings. In FIG. 1, reference numeral 1 denotes
It is a regenerative combustion deodorizer. The deodorizing apparatus 1 has an exhaust gas distribution unit 2 at the lower stage, a heat storage unit 3 at the middle stage, and a combustion chamber 4 at the upper stage. An exhaust gas inlet 5 is provided on the side of the exhaust gas distributor 2, and the odorous exhaust gas flows into the distribution chamber 6 of the exhaust gas distributor 2 from the exhaust gas inlet 5.

The exhaust gas distribution section 2 is provided with a combustion exhaust gas inflow chamber 7 at the center at the bottom thereof, and a combustion exhaust gas inflow pipe 8 is provided above the combustion exhaust gas inflow chamber 7 by a bearing 9. It is rotatably supported. Further, a flue gas exhaust pipe 11 is connected to a side of the flue gas inflow chamber 7, and the flue gas exhaust pipe 11 is guided to a side of the flue gas distribution unit 2 of the deodorizing device 1. The exhaust gas after combustion is sent out from the exhaust gas exhaust pipe 11 to the outside.

The combustion exhaust gas inflow pipe 8 is provided with a driven gear 12 at an intermediate portion thereof. The driven gear 12 has a driving gear 14 provided on a rotating shaft of a driving motor 13.
Are engaged. That is, when the drive motor 13 is driven, the rotational force of the rotation shaft of the drive motor 13 is transmitted from the drive gear 14 to the driven gear 12, and thereby,
The flue gas inflow pipe 8 is configured to rotate about the axis of the deodorizer 1.

The combustion gas inflow pipe 8 is provided at the upper end thereof with a combustion exhaust gas distribution valve 15. As shown in FIG. 2, the combustion exhaust gas distribution valve 15 is formed of a fan-shaped box having an open upper surface, and has a combustion exhaust gas inflow space 16 formed therein.
The flue gas inflow space 16 of the flue gas distribution valve 15 is in communication with the flue gas inflow pipe 8.

As shown in FIG. 3, the heat storage unit 3 in the middle stage
Is provided with a shaft 21 at the center thereof, and a plurality of partition plates 22 are provided around the shaft 21 at intervals in the circumferential direction. Thereby, the heat storage section 3 is provided with the partition plate 22.
A plurality of exhaust gas communication chambers 23 having a fan-shaped cross section are thus formed. The exhaust gas communication chamber 23 of the heat storage unit 3 is
An opening 23a at the upper end thereof communicates with the combustion chamber 4 at the upper stage, and a part of the opening 23b at the lower end communicates with the flue gas inflow space 16 of the flue gas distribution valve 15 of the flue gas distributor 2. The other part communicates with the distribution chamber 6.

Here, the flue gas inflow space 16 of the flue gas distribution valve 15 has two exhaust gas communication chambers 23.
And the cross-sectional area is substantially the same. The upper combustion chamber 4 is provided with a combustion burner 31 at an upper portion thereof, and the combustion burner 31 heats the exhaust gas sent into the combustion chamber 4.

In the lower part of the combustion chamber 4,
As shown in FIG. 4, a plurality of cooling pipes 32 are horizontally arranged. These cooling pipes 32 are formed in a U-shape in plan view, and both ends thereof are fixed to the side wall of the combustion chamber 4. The cooling pipe 32 has a diameter of about 50 mm.
Four pipes are used and the total length of the four pipes is about 1
0 m.

One end of the cooling pipe 32 has an air supply pipe 3
3 is connected, and the other end is connected to an air discharge pipe 34. The air supply pipe 33 is provided with an air supply source (not shown), and cooling air (cooling gas) is sent from the air supply source to the air supply pipe 33.
Then, the air sent into the air supply pipe 33 is supplied to the cooling pipe 32, passes through the cooling pipe 32, is sent out to the air discharge pipe 34, and is discharged. The inside of the combustion chamber 4 is cooled by the air sent into the cooling pipe 32. As the cooling air, room temperature air is sent at a flow rate of about 500 Nm ³ / H.

In the deodorizing apparatus 1 having the above structure, a thermometer 35 is provided in each of the exhaust gas distribution section 2, the heat storage section 3 and the combustion chamber 4, and the temperature of each section is detected by the thermometer 35. I have. The driving of the drive motor 13, the combustion burner 31, the air supply source, and the like is controlled based on the detection signals from the thermometers 35.

Next, the case where the exhaust gas is burned by the combustion type deodorizing apparatus 1 having the above structure will be described. When the odorous exhaust gas is sent from the exhaust gas inlet 5 to the distribution chamber 6 of the exhaust gas distribution unit 2, the odorous exhaust gas is sent from the distribution chamber 6 to each exhaust gas communication chamber 23 of the heat storage unit 3 from the opening 23 b on the lower end side. It is. The odorous exhaust gas does not flow into the exhaust gas communication chamber 23 in which the opening 23b on the lower end side is closed by the combustion exhaust gas distribution valve 15.

The odorous exhaust gas sent into the exhaust gas communication chamber 23 flows into the combustion chamber 4 through the exhaust gas communication chamber 23. And, in this combustion chamber 4, the combustion burner 31
Accordingly, the exhaust gas is heated to a target exhaust gas combustion temperature. As a result, the odorous exhaust gas is converted to an odorless combustion exhaust gas by the odor components in the exhaust gas being burned and decomposed.

Thereafter, the flue gas is sent to the flue gas communication chamber 23 in which the flue gas distribution valve 15 is disposed at the lower end side opening 23b. The flue gas flows into the flue gas distribution valve 15 through the flue gas communication chamber 23. It is sent to the space 16 and sent out to the flue gas inflow chamber 7 via the flue gas inflow pipe 8. Then, the fuel is discharged from the combustion exhaust gas inflow chamber 7 to the outside of the deodorization device 1 through the combustion exhaust gas discharge pipe 11.

Note that the combustion exhaust gas distribution valve 15 is rotated by the drive motor 13, whereby the position of the combustion exhaust gas distribution valve 15 is shifted in the circumferential direction. Thereby, the exhaust gas communication chamber 23 on the rotation direction front side of the combustion exhaust gas distribution valve 15 is sequentially closed by the combustion exhaust gas distribution valve 15, and the exhaust gas communication chamber 23 on the rotation direction rear side of the combustion exhaust gas distribution valve 15 is It will be communicated with the distribution chamber 6 in order.

Here, in the combustion type deodorizing apparatus 1, when the combustion exhaust gas heated in the combustion chamber 4 passes through the exhaust gas communication chamber 23 of the heat storage section 3, the heat is transmitted to the periphery of the exhaust gas communication chamber 23. By doing so, heat is stored. Thus, the high-temperature combustion exhaust gas is cooled and discharged by passing through the exhaust gas communication chamber 23.

Therefore, when the flue gas distribution valve 15 is disengaged from the lower end side and the exhaust gas communication chamber 23 communicates with the distribution chamber 6, the odorous exhaust gas flows from the distribution chamber 6 into the exhaust gas communication chamber 23, Will be flowed toward the combustion chamber 4, and if flown toward the combustion chamber 4 in this way,
This odorous exhaust gas is heated by the heat stored in the exhaust gas communication chamber 23, and when reaching the combustion chamber 4, is heated to near the target combustion temperature. Thereby, heating by the combustion burner 31 in the combustion chamber 4 can be suppressed, fuel can be largely saved, and deodorization can be performed economically.

Here, in the above deodorizing apparatus 1, when the content of the odorous organic substance in the exhaust gas to be sent is 600 ppm or less and the temperature is 20 ° C., the exhaust gas is stored in the heat storage unit 3 at about 780 ° C. Until it reaches about 820 ° C. in the combustion chamber 4. This temperature is
This is a desirable temperature for decomposing odorous organic substances in exhaust gas, and this is a design temperature.

Also, unlike this case, when the content of the odorous organic substance in the exhaust gas is as low as 600 ppm or less, for example, 300 ppm, the combustion heat is small even if the fuel is self-combusted in the combustion chamber 4. Temperature rises only to ° C. Therefore, in such a case, the exhaust gas is heated to a temperature of about 820 ° C. using the combustion burner 31 of the combustion chamber 4.

The deodorizing apparatus 1 is thus operated while controlling the temperature in the combustion chamber 4 to about 820 ° C., which is preferable for decomposing odorous organic substances. When the temperature of the combustion chamber 4 is set to about 820 ° C., the heat is cooled to about 60 ° C. in the heat storage unit 3 and then discharged from the combustion exhaust gas discharge pipe 11.

However, as described above, when the odor component in the exhaust gas has a high concentration (about 1800 ppm), a large combustion heat is generated when the odor component is decomposed by combustion.
This heat may cause the temperature in the combustion chamber 4 to become higher than the target combustion temperature.

In such a case, even if the heating by the combustion burner 31 is stopped, the temperature in the combustion chamber 4 rises to about 900
It reaches a high temperature of ℃. When the high-temperature combustion exhaust gas flows into the exhaust gas communication chamber 23 of the heat storage unit 3,
The heat storage section 3 is designed to have a design temperature (approximately 800
° C) or higher (about 880 ° C). Then, this combustion exhaust gas is then discharged at the outlet of the heat storage unit 3.
It is sent out at a temperature (about 140 ° C.) higher than the design temperature (about 60 ° C.). As described above, when the temperature is high, each part of the apparatus may be damaged by thermal deformation or thermal stress.

Here, in the combustion type deodorizing apparatus 1 of the present embodiment, when the combustion temperature in the combustion chamber 4 rises too much,
Cooling air is supplied from the air supply source to the plurality of cooling pipes 32 disposed in the combustion chamber 4 via the air supply pipe 33. Then, the temperature inside the combustion chamber 4 is reduced by the cooling pipe 32 through which the cooling air is passed, and the temperature is suppressed to the target combustion temperature. The cooling air passed through the cooling pipe 32 absorbs the heat in the combustion chamber 4 and is sent out to the air discharge pipe 34,
The air is discharged from the air discharge pipe 34 to the outside.

Here, when the cooling air supplied to the cooling pipe 32 flows at a flow rate of 500 Nm ³ / H at normal temperature, the air discharged from the air discharging pipe 34 becomes about 320 ° C. Then, the temperature reached about 820 ° C. And the heat storage unit 3
The outlet temperature of the combustion exhaust gas cooled down and sent downward was about 60 ° C.

As described above, the combustion type deodorizer 1 of the above example is used.
According to this, the cooling pipe 32 through which the cooling air is passed through the combustion chamber 4
Is provided, the odor component in the exhaust gas is so concentrated that the odor component is burned and decomposed to generate combustion heat, and the temperature in the combustion chamber 4 becomes higher than the target combustion temperature. Then, by passing the cooling air through the cooling pipe 32, the temperature in the combustion chamber 4 can be reduced to a target combustion temperature.

As a result, the combustion chamber 4 becomes higher than the target combustion temperature due to the heat of combustion generated by the combustion and decomposition of the odor component. Can reliably prevent the occurrence of failure due to thermal deformation and thermal stress caused by exceeding
The odorous exhaust gas can be always deodorized in a stable and favorable state.

As described above, according to the deodorizing apparatus 1 of the present embodiment, what could be conventionally applied only to the treatment of low-concentration (about 600 ppm) exhaust gas,
The present invention can also be applied to the treatment of high-concentration (eg, 1800 ppm) exhaust gas. In other words, the device 1 can be used in a wide range of applications, while making use of the advantage of the heat storage type, which has extremely excellent thermal efficiency.

Further, compared with the case where a large amount of air is blown into the combustion chamber 4 from the outside and the high temperature combustion exhaust gas is simultaneously discharged from the combustion chamber 4 and cooled, the operation sequence is not complicated. Moreover, an expensive heat-resistant steel control valve or the like used for discharging high-temperature combustion gas is not required. Moreover, unlike the case where the concentration of the odor component is reduced by previously diluting the exhaust gas with air, the amount of the exhaust gas to be subjected to the odor treatment is not increased, which is extremely economically advantageous.

In the above example, air is used as the gas flowing through the cooling pipe 32. However, the gas flowing through the cooling pipe 32 is not limited to air. For example, an inert gas such as argon may be used. May be used.

[0044]

As described above, according to the combustion type deodorizing apparatus of the present invention, the following effects can be obtained. According to the combustion type deodorizing device of the first aspect, since the cooling pipe through which the cooling gas is passed is provided in the combustion chamber, since the odor component in the exhaust gas is high in concentration, the odor component is burned and decomposed. In the case where the combustion heat is generated and the temperature inside the combustion chamber becomes higher than the target combustion temperature, the temperature inside the combustion chamber is lowered by passing cooling gas through the cooling pipe to reach the target combustion temperature. Can be suppressed. As a result, the combustion chamber becomes higher than the target combustion temperature due to the combustion heat generated by the decomposition and decomposition of the odor component. In addition, it is possible to reliably prevent the occurrence of an obstacle due to heat or thermal stress, and it is possible to always deodorize odorous exhaust gas in a stable and favorable state.

That is, what can be applied only to the treatment of low concentration exhaust gas can be applied to the treatment of medium and high concentration exhaust gas. That is, the application range of the device can be widened while utilizing the advantage of the heat storage type having extremely excellent thermal efficiency. Also, compared with the case where a large amount of air is blown into the combustion chamber from the outside and the high temperature combustion exhaust gas is simultaneously discharged from the combustion chamber to the outside and cooling is performed, the operation sequence is not complicated, and the high temperature No expensive heat-resistant steel control valve or the like used for releasing the combustion gas is required. Moreover, unlike the case where the concentration of the odor component is reduced by previously diluting the exhaust gas with air, the amount of the exhaust gas to be subjected to the odor treatment is not increased, which is extremely economically advantageous.

[Brief description of the drawings]

FIG. 1 is a side sectional view of a combustion-type deodorizing device for explaining a configuration and a structure of a combustion-type deodorizing device according to an embodiment of the present invention.

FIG. 2 is a cross-sectional plan view of an exhaust gas distribution section of the combustion type deodorizing device, illustrating the configuration and structure of the combustion type deodorizing device according to the embodiment of the present invention.

FIG. 3 is a plan cross-sectional view of a heat storage unit of the combustion type deodorizing device, illustrating a configuration and a structure of the combustion type deodorizing device according to the embodiment of the present invention.

FIG. 4 is a plan cross-sectional view of a combustion chamber of the combustion type deodorizing device, illustrating the configuration and structure of the combustion type deodorizing device according to the embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Combustion type deodorizing device 3 Heat storage part 4 Combustion chamber 23 Exhaust gas communication passage 32 Cooling pipe

Claims (1)

[Claims] 1. A combustion chamber for deodorizing by burning an odor component of an odorous exhaust gas, and a plurality of odorous exhaust gases sent to the combustion chamber are passed therethrough and a combustion gas discharged from the combustion chamber is passed therethrough. The exhaust gas communication path is provided, and by sequentially switching the flow of the exhaust gas in the exhaust gas communication path, the heat of the combustion exhaust gas is sequentially stored in the exhaust gas communication path, and thereafter, the odorous exhaust gas is passed through the heat-stored exhaust gas communication path. A combustion type deodorizer having a heat storage unit for heating odorous exhaust gas and sending it to the combustion chamber, wherein a cooling gas is passed through the combustion chamber, and the combustion gas is used to cool the combustion chamber. A combustion type deodorizing device, wherein a pipe is provided.