JP2008185267A - Heat storage type deodorizer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a heat storage type deodorizer capable of lowering costs by carrying out heat treatment by heating gas to be treated in a heat treatment area to a predetermined temperature without using a heating means such as a burner. <P>SOLUTION: The heat storage type deodorizer 1 is provided with a plurality of heat storage areas 3 housing heat storage material 31, and the heat treatment area 2 carrying out heat treatment of the gas to be treated supplied via at least one of the plurality of heat storage areas 3. A mixing means 5 is provided for mixing an inflammable combustion agent into the gas to be treated. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention mainly relates to a heat storage type deodorization apparatus for deodorizing a gas to be processed discharged from a factory or the like, and in particular, a gas to be processed containing an organic substance such as a volatile organic compound (hereinafter referred to as “VOC”). The present invention relates to a heat storage deodorizing apparatus suitable for deodorization.

  2. Description of the Related Art Conventionally, as a deodorizing apparatus for a gas to be processed discharged from a factory or the like and containing VOC, for example, a heat treatment region for heat treating the gas to be treated and a plurality of gas for preheating the gas to be treated introduced into the heat treatment region There is known a heat storage region in which, for example, a honeycomb-shaped heat storage material is accommodated as a heat storage material for preheating the gas to be processed.

  Such a heat storage type deodorizing apparatus is configured to introduce a gas to be treated through any one heat storage region into the heat treatment region, heat-treat in the heat treatment region, and then discharge the other heat storage region as an outlet. In the heat treatment region, for example, a burner is provided as a heating means for raising the gas to be treated in the heat treatment region to a predetermined temperature (see Patent Document 1 below). ).

Such a heating means raises the temperature of the gas to be treated in the heat treatment region to a predetermined temperature by burning a mixture of air and combustion gas.
JP 2000-171021 A

  However, in the conventional heat storage deodorizing apparatus, in order to raise the temperature of the gas to be treated in the heat treatment region to a predetermined temperature, a large amount of air is used as the combustion gas due to the characteristics of the burner as the heating means. It must be mixed and burned at a high air ratio, and for this purpose, for example, an air supply blower must be used. If it does so, it will become difficult to hold down cost, for example in the installation expense of the thermal storage type deodorizing device itself, an operating cost, etc.

  Accordingly, the present invention has been made in view of the above-described conventional problems, and enables heat treatment by raising the gas to be processed in the heat treatment region to a predetermined temperature without using a heating means such as a burner. Thus, it is an object to provide a heat storage type deodorizing apparatus capable of reducing the cost.

  The present invention has been made to solve the above problems, and a heat storage deodorization apparatus according to the present invention includes a plurality of heat storage regions in which a heat storage material is accommodated and at least one of the plurality of heat storage regions. A regenerative deodorization apparatus comprising a heat treatment region for heat-treating a supplied gas to be treated, comprising a mixing means for mixing a combustible combustion agent with the gas to be treated.

  In the heat storage type deodorizing apparatus having such a configuration, the combustible combustible is mixed with the gas to be processed by the mixing means, and therefore the gas to be processed and the combustible combustible are mixed in advance and supplied to the heat treatment region. Then, the combustible combustion agent burns in the heat treatment region, and the gas to be treated in the heat treatment region can be heated to a predetermined temperature and heat treated.

  The heat storage deodorization apparatus according to the present invention includes a plurality of heat storage regions in which a heat storage material is accommodated, a supply-side duct that supplies a gas to be treated to at least one of the plurality of heat storage regions, and the plurality of heat storage regions. A heat storage deodorizing device that is in communication with a heat treatment region for heat-treating the gas to be treated, and is a mixing unit that sprays a liquid combustible combustible into the supply-side duct and mixes it with the gas to be treated. It is characterized by providing.

  In the heat storage type deodorizing apparatus having the above configuration, since it includes a mixing means for mixing the combustible combustible agent with the gas to be processed by spraying the liquid combustible combustible agent in the supply side duct, The gas and the combustible combustion agent are mixed in advance and supplied from the supply side duct to the heat treatment region through the heat storage region. Then, the combustible combustion agent burns in the heat treatment region, and the gas to be treated in the heat treatment region can be heated to a predetermined temperature and heat treated.

  The heat storage deodorization apparatus according to the present invention includes a plurality of heat storage regions in which a heat storage material is accommodated, a supply-side duct that supplies a gas to be treated to at least one of the plurality of heat storage regions, and the plurality of heat storage regions. A heat storage deodorizing device that is in communication with a heat treatment region that heat-treats the gas to be treated, and is a mixing unit that introduces a combustible combustor that is vaporized into the supply-side duct and mixes it with the gas to be treated It is characterized by providing.

  The regenerative deodorization apparatus having the above configuration includes mixing means for introducing the combustible combustible vaporized into the supply side duct and mixing the combustible combustible with the gas to be treated. The processing gas and the combustible combustion agent are mixed in advance and supplied from the supply side duct to the heat treatment region via the heat storage region. Then, the combustible combustion agent burns in the heat treatment region, and the gas to be treated in the heat treatment region can be heated to a predetermined temperature and heat treated.

  Moreover, the heat storage deodorizing apparatus according to the present invention includes a plurality of heat storage regions in which a heat storage material is accommodated, and a heat treatment region for heat-treating a gas to be processed supplied via at least one of the plurality of heat storage regions. A thermal storage type deodorizing device comprising: spraying the combustible combustible so that the liquid combustible combustible is diffused throughout the heat treatment region, whereby the combustible combustible and the gas to be treated are It is characterized by comprising mixing means for mixing.

  In the heat storage type deodorizing apparatus having the above configuration, the combustible combustible and the object to be burned are sprayed by spraying the combustible combustible so that the liquid combustible combustible is diffused throughout the heat treatment region. Since the mixing means for mixing the processing gas is provided, the gas to be processed and the combustible combustion agent are mixed in the heat treatment region, and the combustible combustion agent burns. Here, since the liquid combustible combustion agent is sprayed so as to diffuse throughout the heat treatment region, the gas to be treated and the combustible combustion agent are uniformly mixed throughout the heat treatment region. It becomes a state. As a result, the combustible combustor burns in the entire heat treatment region, the temperature distribution in the heat treatment region becomes uniform, and the gas to be treated can be efficiently heated to a predetermined temperature for heat treatment.

  Thus, in the regenerative deodorization apparatus according to the present invention, the combustible combustible is mixed with the gas to be treated by the mixing means, so the gas to be treated and the combustible combustible are mixed in advance and the heat treatment region. The combustible combustible is combusted. Therefore, the gas to be processed in the heat treatment region can be heated to a predetermined temperature and heat-treated without using a heating means such as a burner as in the prior art, and the cost can be reduced. .

  Further, the heat storage deodorization apparatus according to the present invention includes a mixing means for mixing the combustible combustion agent with the gas to be treated by spraying a liquid combustible combustion agent in the supply side duct. The gas to be treated and the combustible combustion agent are mixed in advance and supplied from the supply side duct to the heat treatment region via the heat storage region, and the combustible combustion agent burns. Therefore, the gas to be processed in the heat treatment region can be heated to a predetermined temperature without using a heating means such as a burner as in the prior art, and the cost can be reduced.

  The heat storage deodorizing apparatus according to the present invention further includes a mixing means for introducing the combustible combustible vaporized into the supply side duct and mixing the combustible combustible with the gas to be treated. Therefore, the gas to be treated and the combustible combustion agent are mixed in advance and supplied from the supply duct through the heat storage region to the heat treatment region, and the combustible combustion agent burns. Therefore, the gas to be processed in the heat treatment region can be heated to a predetermined temperature without using a heating means such as a burner as in the prior art, and the cost can be reduced.

  Further, in the heat storage type deodorizing apparatus according to the present invention, the combustible combustor is sprayed by spraying the combustible combustible so that the liquid combustible combustible is diffused throughout the heat treatment region. And the above-mentioned gas to be treated are provided, so that the gas to be treated and the combustible combustor are uniformly mixed over the entire heat treatment region, and the combustible combustor is burned. . Accordingly, the temperature distribution in the heat treatment region becomes uniform, and the gas to be treated can be efficiently heated to a predetermined temperature and heat treated without using a heating means such as a burner as in the prior art, thereby reducing the cost. There is an effect that can be.

Hereinafter, the heat storage deodorizing apparatus according to the present invention will be described in detail with reference to the drawings.
FIG. 1 is a flow diagram showing an aspect of the flow of the gas to be treated in the heat storage deodorization apparatus 1 of the first embodiment of the present invention.

  The heat storage deodorizer 1 includes a plurality of heat storage regions 3 in which a heat storage material 31 is accommodated, a supply-side duct 4 that supplies a gas to be treated to at least one of the plurality of heat storage regions 3, and the plurality of heat storage regions. 3, a heat treatment region 2 that heat-treats the gas to be treated supplied from the supply side duct 4 through the heat storage region 3, and a mixing unit 5 that mixes a combustible combustion agent with the gas to be treated. Thus, the first embodiment is configured as a so-called three-column heat storage deodorizing device including three heat storage regions 3.

  The heat storage deodorizer 1 oxidizes organic substances such as VOC contained in the gas to be processed by heating the gas to be processed supplied from the supply duct 4 through the heat storage region 3 and into the heat treatment region 2. By decomposing, the gas to be treated can be deodorized.

  The heat treatment area 2 is an internal area of the heat resistant casing 21. The casing 21 is provided with a heating means 6 such as a burner at the top 211, and the inside of the casing 21 can be heated by the heating means 6. In the first embodiment, the heating means 6 is configured to raise the temperature inside the heat treatment region 2 by burning the combustion gas introduced from the gas path 61.

  The heat storage region 3 has a supply state in which the gas to be treated is introduced from the supply side duct 4 through the inside thereof to the heat treatment region 2, and the gas to be treated which is heat-treated in the heat treatment region 2 passes through the inside. It is configured such that the discharged state can be changed.

  The heat storage material 31 accommodated in the heat storage region 3 preheats the gas to be processed that passes through the interior when the heat storage region 3 is in the supply state, and the high temperature material that passes through the interior when the heat storage region 3 is in the discharge state. It is configured to absorb heat from the gas to be processed. In addition, as the heat storage material 31, for example, a metal or ceramic material formed in a honeycomb shape may be used in order to partition a plurality of gas flow paths and improve heat transfer efficiency with the gas to be processed. it can.

  The supply side duct 4 is arranged so that the gas to be treated in a gas tank (not shown) can be supplied to each heat storage region 3. The supply side duct 4 includes a pipe 41 and a plurality of opening / closing valves 42 interposed in the middle of the pipe 41. In the first embodiment, a supply fan F that forms a flow for supplying the gas to be processed to each heat storage region 3 is interposed. The supply fan F is disposed upstream of the plurality of opening / closing valves 42. Further, by operating the on-off valve 42, the heat storage region 3 is in a supply state or the state is released.

  The said mixing means 5 is comprised so that a combustible combustion agent can be mixed with the to-be-processed gas supplied to the heat processing area | region 2 through the heat storage area | region 3 of the supply state from the supply side duct 4. FIG. . Specifically, the mixing means 5 in the first embodiment is configured such that a liquid combustible combustion agent can be sprayed into the supply side duct 4 and mixed with the gas to be processed. In the first embodiment, the mixing means 5 is arranged so that the combustible combustion agent can be sprayed into the supply side duct 4 on the upstream side of the supply fan F. The mixing means 5 may be disposed so that the combustible combustion agent can be sprayed into the supply side duct 4 on the downstream side of the supply fan F and on the upstream side of the opening / closing valve 42. Further, it may be arranged such that the combustible combustion agent can be sprayed into the supply side duct 4 on the downstream side of the opening / closing valve 42.

  The mixing means 5 communicates the combustion agent tank 51 in which the liquid combustible combustion agent is stored, the combustion agent tank 51 and the supply side duct 4, and the combustible combustion agent is atomized in the supply side duct 4. And a spray pump P1 that forms a flow for spraying the combustible combustion agent in the heat treatment region 2 and is provided in the middle of the spray path 52. It is configured. The mixing means 5 is not particularly limited as long as it can spray the combustible combustion agent into the supply-side duct 4, and for example, a spray fan can be used instead of the spray pump P1. Moreover, as a combustible combustion agent, combustible liquids, such as heavy oil and oil, are employable, for example.

  In addition, the heat storage deodorization apparatus 1 has a discharge side duct arranged so that the gas to be treated heat-treated in the heat treatment region 2 can be discharged from the heat storage region 3 in the discharged state to the outside of the system (for example, in the atmosphere). 7 and the treated gas accumulated in the heat storage region 3 in a state where the flow of the treated gas between the supply side duct 4 and the discharge side duct 7 is interrupted is returned to the supply side duct 4 or the gas tank. The purge return duct 8 is provided. The discharge side duct 7 and the purge return duct 8 are respectively provided with pipes 71, 81 and a plurality of on-off valves 72, 82 interposed in the middle of the pipes 71, 81. The purge return duct 8 is configured to return the gas to be processed to at least the supply side duct 4 or the gas tank upstream of the supply fan F. Further, by operating the open / close valve 72 of the discharge side duct 7, the heat storage region 3 can be discharged or released.

  In the heat storage deodorization apparatus 1 of the first embodiment, in order to deodorize the gas to be treated by normal operation, first, as a first step, the supply side duct 4, the discharge side duct 7, and the purge return duct By opening / closing the open / close valves 42, 72, and 82 provided in FIG. 8, any one or more of the heat storage regions 3 (hereinafter sometimes referred to as a first heat storage unit) is supplied. And any other one or more heat storage regions 3 (hereinafter sometimes referred to as second heat storage portions) are set in a discharged state, and another heat storage region 3 (hereinafter may be referred to as third heat storage portions). Then, a purge state is established in which the gas to be processed inside is returned to the supply-side duct 4 and thereafter the inflow and outflow of the gas to be processed are prohibited. Next, as the second step, the first heat storage unit is set to the purge state, the second heat storage unit is set to the supply state, and the third heat storage unit is set to the discharge state. Next, as the third step, the first heat storage unit is set to the discharge state, the second heat storage unit is set to the purge state, and the third heat storage unit is set to the supply state.

  In each step, the gas to be treated flows through the supply side duct 4 in a state where the combustible combustor is sprayed in the supply side duct 4 by the mixing means 5 and is mixed in advance with the combustible combustion agent, thereby storing heat. 3 is introduced. And the to-be-processed gas and the combustible combustion agent which were mixed are preheated to 750-930 degreeC normally by receiving heat from the preheated heat storage material 31 in the heat storage area | region 3, and this heat storage area | region 3 is made. It passes through and is supplied into the heat treatment region 2, and the combustible combustion agent burns in the heat treatment region 2, and the gas to be treated in the heat treatment region 2 is heated to a predetermined temperature and oxidized to deodorize it. can do. Therefore, even if the heating means 6 such as a burner is not used as in the prior art, the gas to be processed in the heat treatment region 2 can be deodorized by heat treatment, and the cost can be reduced.

  Moreover, in the case of using a conventional burner, there is a tendency that the temperature distribution in the heat treatment region 2 becomes biased due to local heating, and the deodorization of the gas to be treated may be insufficient. By adopting a configuration in which the gas to be treated and the combustible combustion agent are supplied into the heat treatment region 2 in a premixed state, the temperature distribution in the heat treatment region 2 becomes uniform and can be deodorized reliably.

  Thus, the deodorized high-temperature gas to be treated is absorbed by the heat storage material 31 inside when passing through the discharged heat storage region 3, and is usually cooled to 20 to 120 ° C. in the atmosphere. To be discharged. In the heat storage region 3 in the purge state, the gas to be processed therein is returned to the supply side duct 4 via the purge return duct 8, and thereafter the inflow and outflow of the gas to be processed are prohibited.

  Moreover, by providing the heat storage material 31, the gas to be processed can be efficiently preheated using the heat of the gas to be processed that has been heat-treated, and the processing cost and the like can be further reduced. In addition, since the heat storage region 3 in the supply state is set to the purge state in the next step, it is possible to reduce a problem that the gas to be processed remaining in the heat storage region 3 is discharged into the atmosphere without being heat-treated.

  In order to bake out the heat storage region 3, any one or more of the heat storage regions 3 (for example, the first heat storage unit) is set in a supply state by opening / closing the opening / closing valves 42, 72, and 82, One or more heat storage regions 3 (for example, the second heat storage unit) are set in an exhausted state, and another heat storage region 3 (for example, the third heat storage unit) is set in an air-burning state to perform heat treatment in the heat treatment region 2. The heat storage region 3 set in the supply state and the heat storage region 3 set in the discharge state are operated so that the set state alternates at predetermined intervals. As a result of such a series of operations, the heat storage region 3 set in the air-burning state receives heat from the heat treatment region 2 for a relatively long time, and attached organic matter and the like are removed.

  In such a series of operations, the switching of the setting state is not particularly limited, but is normally performed at a timing when the introduction side temperature of the heat storage region 3 in the supply state is lowered to 20 to 120 ° C. In addition, when switching, the to-be-processed gas in the heat storage area | region 3 made into a discharge | emission state from a supply state is returned to the supply side duct 4 via the return duct 8 for a purge. By performing such an operation, it is possible to prevent the gas to be processed in the heat storage region 3 from being discharged into the atmosphere without being processed at the switching timing.

  FIG. 2 is a flow diagram showing an aspect of the flow of the gas to be treated in the heat storage deodorization apparatus 1 of the second embodiment of the present invention. In addition, about the structure similar to the heat storage type deodorizing apparatus 1 which concerns on said 1st embodiment, the same code | symbol shall be attached | subjected and the description is abbreviate | omitted.

  The heat storage deodorizer 1 includes a plurality of heat storage regions 3 in which a heat storage material 31 is accommodated, a supply-side duct 4 that supplies a gas to be treated to at least one of the plurality of heat storage regions 3, and the plurality of heat storage regions. 3, a heat treatment region 2 that heat-treats the gas to be treated supplied from the supply side duct 4 through the heat storage region 3, and a mixing unit 5 that mixes a combustible combustion agent with the gas to be treated. It becomes.

  The said mixing means 5 is comprised so that a combustible combustion agent can be mixed with the to-be-processed gas supplied to the heat processing area | region 2 through the heat storage area | region 3 of the supply state from the supply side duct 4. FIG. . Specifically, the mixing means 5 in the second embodiment is configured such that a combustible combustible vaporized in the supply side duct 4 can be introduced and mixed with the gas to be processed. The mixing means 5 is arranged so that the combustible combustible vaporized in the supply duct 4 can be fed upstream from the supply fan F. The mixing means 5 may be disposed so that the combustible combustion agent can be sprayed into the supply side duct 4 on the downstream side of the supply fan F and on the upstream side of the opening / closing valve 42. Further, it may be arranged such that the combustible combustion agent can be sprayed into the supply side duct 4 on the downstream side of the opening / closing valve 42.

  The mixing means 5 is not particularly limited as long as the combustible combustible vaporized in the supply-side duct 4 can be fed into the supply-side duct 4, but for example, combustion in which liquid combustible combustible is stored. A vaporizer tank 51, vaporization means 53 for vaporizing the liquid combustible combustion agent, and a vaporization path 54 communicating the combustion agent tank 51 and the supply side duct 4. And an introduction pump P <b> 2 for introducing a combustible combustion agent into the supply-side duct 4. In addition, as a combustible combustion agent, combustible liquids, such as heavy oil and oil, are employable, for example.

  As shown in FIG. 3, the vaporizing means 53 includes a vaporizing unit 531 that vaporizes a liquid combustible combustion agent, and a heating unit 532 that heats the vaporizing unit 531. The vaporization unit 531 is, for example, a metal evaporation plate, and is attached to one end of the heating unit 532. The heating unit 532 includes a heating wire 532a therein, and is configured to heat the vaporizing unit 531 by energizing the heating wire 532a. The vaporizing means 53 is attached by fitting one end of the heating unit 532 into the pipe 41 so as to face the vaporizing path 54. Therefore, the vaporization unit 531 is disposed inside the pipe 41 and is disposed to face the vaporization path 54.

  When the vaporizing means 53 having such a configuration is employed, the vaporization path 54, the introduction pump P2, and the like are adjusted so that the combustible combustion agent is introduced into the pipe 41 in the form of droplets. If it does so, the droplet of the combustible combustion agent introduce | transduced in the piping 41 from the vaporization path | route 54 will fall on the surface of the vaporization part 531, will evaporate with the heat | fever of the vaporization part 531, and will become gas, and will mix with to-be-processed gas. Note that the arrow X shown in FIG. 3 indicates the direction in which the gas to be processed flows.

  As the vaporization means 53, for example, a heating wire disposed around or inside the vaporization path 54 may be employed, or a pipe for flowing a heat medium may be employed. As the heat medium, a heated fluid can be used. For example, a gas to be processed heated in the heat treatment region 2 can be preferably used. Further, the introduction pump P2 may be built in the vaporizing means 53.

  In the regenerative deodorization apparatus 1 of the second embodiment, in order to deodorize the gas to be treated by normal operation, the first step, the second step, and the third step are performed. In each process, the gas to be treated is introduced into the supply side duct 4 in a state of being preliminarily mixed with the combustible combustion agent by introducing the combustible combustion agent vaporized into the supply side duct 4 by the mixing means 5. And is introduced into the heat storage region 3 in the supply state. And the to-be-processed gas and the combustible combustion agent which were mixed are preheated to 750-930 degreeC normally by receiving heat from the preheated heat storage material 31 in the heat storage area | region 3, and this heat storage area | region 3 is made. It passes through and is supplied into the heat treatment region 2. Then, the combustible combustion agent burns in the heat treatment region 2, and the gas to be treated in the heat treatment region 2 is heated to a predetermined temperature and oxidized to deodorize it. Therefore, the gas to be treated in the heat treatment region 2 can be deodorized by heat treatment without using a burner as in the prior art, and the cost can be reduced.

  Moreover, in the case of using a conventional burner, there is a tendency that the temperature distribution in the heat treatment region 2 becomes biased due to local heating, and the deodorization of the gas to be treated may be insufficient. By adopting a configuration in which the gas to be treated and the vaporized combustible combustion agent are supplied into the heat treatment region 2 in a state of being mixed in advance, the temperature distribution becomes uniform and the deodorization can be reliably performed.

  The deodorized high-temperature gas to be treated is absorbed by the heat storage material 31 inside when passing through the discharged heat storage region 3, and is usually cooled to 20 to 120 ° C and discharged into the atmosphere. Is done. In the heat storage region 3 in the purge state, the gas to be processed therein is returned to the supply side duct 4 via the purge return duct 8, and thereafter the inflow and outflow of the gas to be processed are prohibited.

  FIG. 4 is a flow diagram showing an aspect of the flow of the gas to be processed in the heat storage deodorizer 1 according to the third embodiment of the present invention. In addition, about the structure similar to the thermal storage deodorizing apparatus 1 which concerns on said 1st and 2nd embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  The heat storage deodorizer 1 includes a plurality of heat storage regions 3 in which a heat storage material 31 is accommodated, a supply-side duct 4 that supplies a gas to be treated to at least one of the plurality of heat storage regions 3, and the plurality of heat storage regions. 3, a heat treatment region 2 that heat-treats the gas to be treated supplied from the supply side duct 4 through the heat storage region 3, and a mixing unit 5 that mixes a combustible combustion agent with the gas to be treated. It becomes.

  The said mixing means 5 can mix the said combustible combustion agent and the said to-be-processed gas by spraying so that a liquid combustible combustion agent may diffuse in the said heat processing area | region 2 whole. It is configured. Specifically, the mixing means 5 in the third embodiment includes a plurality of sprays provided in a combustion agent tank 51 in which a liquid combustible combustion agent is stored and a casing 21 that forms the heat treatment region 2. A nozzle 55, a spray path 56 connected to each of the plurality of spray nozzles 55 and communicating the combustion agent tank 51 and the heat treatment region 2; And a spray pump P1 that forms a flow for spraying the combustible combustion agent. The mixing means 5 is capable of mixing the combustible combustion agent and the gas to be treated by spraying the liquid combustible combustion agent so as to diffuse throughout the heat treatment region 2. There is no particular limitation. Moreover, as a combustible combustion agent, combustible liquids, such as heavy oil and oil, are employable, for example.

  The spray nozzle 55 is configured to be able to eject the liquid combustible combustion agent flowing through the spray path 56 in the form of a mist, and at least the circumferential direction (lateral direction) of the casing 21. A plurality are provided at predetermined intervals along the entire circumference. In the third embodiment, the spray nozzle 55 is provided not only on the side wall portion 212 of the housing 21 but also on the top portion 211, and the spray nozzle 55 provided on the top portion 211 has a side wall portion rather than the burner. It is provided on the 212 side.

  In addition, a plurality of spray nozzles 55 provided in the side wall portion 212 are arranged not only in the circumferential direction but also in the vertical direction, and the spray direction of each spray nozzle 55 is slightly upward or downward with respect to the horizontal direction or the horizontal direction. It has become the direction.

  Moreover, the spray nozzle 55 provided in the top part 211 has its spray direction so that it can spray toward the top part 211 of the said housing | casing 21, ie, the outer peripheral side of the heat processing area | region 2, toward a center side. Is set. That is, the combustible combustion agent sprayed from the spray nozzle 55 provided in the top portion 211 is ejected inward from the outer peripheral side to the center side of the heat treatment region 2.

  In this way, by providing a plurality of spray nozzles 55 at predetermined intervals over the entire circumference of at least the circumferential direction (lateral direction) of the casing 21, combustibility from the periphery toward the center of the heat treatment region 2. The combustion agent can be sprayed, and the combustible combustion agent can be diffused throughout the heat treatment region 2.

  In the heat storage deodorization apparatus 1 of the third embodiment, in order to deodorize the gas to be treated by normal operation, the above-described first step, second step, and third step are performed. In each step, the gas to be treated that has flowed through the supply-side duct 4 is preheated to 750 to 930 ° C. by receiving heat from the preheated heat storage material 31 in the heat storage region 3 and is usually stored in the heat storage region. 3 is supplied into the heat treatment region 2. Then, the liquid combustible combustion agent is sprayed by the mixing means 5 so as to diffuse throughout the heat treatment region 2, whereby the gas to be treated and the combustible combustion agent are spread over the entire heat treatment region 2. A uniformly mixed state is obtained. And the combustible combustion agent burns in the entire heat treatment region 2, the temperature distribution in the heat treatment region 2 becomes uniform, and the gas to be treated can be efficiently heated to a predetermined temperature to be oxidized and deodorized. . Therefore, even if the heating means 6 such as a burner is not used as in the prior art, the gas to be processed in the heat treatment region 2 can be deodorized by heat treatment, and the cost can be reduced.

  Moreover, in the case of using a conventional burner, there is a tendency that the temperature distribution in the heat treatment region 2 becomes biased due to local heating, and the deodorization of the gas to be treated may be insufficient. By adopting a configuration in which the gas to be treated and the vaporized combustible combustion agent are supplied into the heat treatment region 2 in a state of being mixed in advance, the temperature distribution becomes uniform and the deodorization can be reliably performed.

  The deodorized high-temperature gas to be treated is absorbed by the heat storage material 31 inside when passing through the discharged heat storage region 3, and is usually cooled to 20 to 120 ° C and discharged into the atmosphere. Is done. In the heat storage region 3 in the purge state, the gas to be processed therein is returned to the supply side duct 4 via the purge return duct 8, and thereafter the inflow and outflow of the gas to be processed are prohibited.

  The regenerative deodorization apparatus 1 of the first to third embodiments is configured as described above and has the effects as described above. However, the regenerative deodorization apparatus 1 of the present invention is limited to the above configuration. However, the design can be appropriately changed within the range intended by the present invention.

  For example, in the first to third embodiments, the three-column heat storage deodorizing apparatus has been described as an example. However, the present invention is not limited to this, and other methods such as a two-column type and a rotary type are also used. It is also possible to use a heat storage deodorizing device of the type Moreover, you may employ | adopt combining 1 or 2 or more structures among the structures demonstrated in said 1st thru | or 3rd embodiment.

  Moreover, in the heat storage deodorizing apparatus 1 of the first to third embodiments, the purge return duct is provided and the gas to be treated is returned to the upstream side. When switching from the supply state to the discharge state, for example, by introducing outside air or the like through the supply side duct, the gas to be processed in the heat storage region is pushed into the heat treatment region and heat treated. May be. In such a heat storage type deodorizing apparatus 1, the possibility of untreated gas being discharged into the atmosphere is reduced even if a separate return duct for purging is not provided, so that the configuration of the apparatus is simplified. It will be a thing.

The flowchart which showed 1st embodiment of the thermal storage type deodorizing apparatus which concerns on this invention. The flowchart which showed 2nd embodiment of the thermal storage type deodorizing apparatus which concerns on this invention. Schematic which shows the vaporization means concerning 2nd embodiment. The flowchart which showed 3rd embodiment of the thermal storage type deodorizing apparatus which concerns on this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Thermal storage deodorizing device, 2 ... Heat processing area, 3 ... Heat storage area, 4 ... Supply side duct, 5 ... Mixing means, 6 ... Heating means, 7 ... Discharge side duct, 8 ... Returning duct for purge, 21 ... Housing Body, 31 ... heat storage material, 41, 71, 81 ... piping, 42, 72, 82 ... open / close valve, 51 ... combustion agent tank, 52, 56 ... spray path, 53 ... vaporization means, 54 ... vaporization path, 55 ... spray Nozzle, 61 ... gas path, 211 ... top part, 212 ... side wall part, 531 ... vaporization part, 532 ... heating part, F ... supply fan, P1 ... spray pump, P2 ... introduction pump

Claims (4)

  A heat storage deodorizing apparatus comprising: a plurality of heat storage regions in which a heat storage material is housed; and a heat treatment region for heat-treating a gas to be treated supplied through at least one of the plurality of heat storage regions. A regenerative deodorizing apparatus comprising a mixing means for mixing a combustible combustion agent with gas.   A plurality of heat storage regions in which a heat storage material is accommodated, a supply-side duct that supplies a gas to be processed to at least one of the plurality of heat storage regions, and a heat treatment that communicates with the plurality of heat storage regions and heat-treats the gas to be processed A regenerative deodorization apparatus comprising: a heat storage deodorization apparatus including a mixing unit that sprays a liquid combustible combustion agent into the supply duct and mixes it with the gas to be treated.   A plurality of heat storage regions in which a heat storage material is accommodated, a supply-side duct that supplies a gas to be processed to at least one of the plurality of heat storage regions, and a heat treatment that communicates with the plurality of heat storage regions and heat-treats the gas to be processed A regenerative deodorization apparatus comprising: a heat storage deodorization apparatus including a mixing unit that introduces a combustible combustible vaporized into the supply-side duct and mixes it with the gas to be treated.   A heat storage deodorizing apparatus comprising a plurality of heat storage regions in which a heat storage material is accommodated and a heat treatment region for heat-treating a gas to be treated supplied via at least one of the plurality of heat storage regions, It comprises mixing means for mixing the combustible combustible and the gas to be treated by spraying the combustible combustible so that the combustible combustible is diffused throughout the heat treatment region. Thermal storage deodorizer.

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