A heat storage incinerator

Abstract

The present invention provides a regenerative incinerator, which relates to the technical field of waste gas treatment, and includes an integrated tank, in which a burner, a catalyst chamber, and an evaporator are sequentially arranged from one end to the other end. The present invention, by designing the structure of the integrated tank, the catalyst chamber, the burner, and the evaporator, skillfully combines the catalytic combustion treatment of harmful tail gas containing organic matter with the heating process of the evaporator, and uses the burner to mix the harmful tail gas containing organic matter with natural gas and then burn it, so as to achieve heating of the harmful tail gas containing organic matter. This process heats the gas to form heated secondary tail gas, and the heated secondary tail gas passes through the catalyst chamber, and the catalytic oxidation process continues to consume the organic matter in the heated secondary tail gas, so that more heat can be provided for the subsequent heat exchange at the evaporator. Compared with the use of regenerative catalytic combustion and steam generator alone, the whole process has higher heat utilization, and is more economical and environmentally friendly.

Description

Technical Field

[0001] The invention relates to the technical field of waste gas treatment, in particular to a heat storage incinerator. Background Art

[0002] The thermal storage catalytic combustion treatment process is a high-efficiency waste gas treatment process that combines thermal storage technology and catalytic combustion principles. It is mainly used to treat organic waste gases such as volatile organic compounds (VOCs); the traditional process includes: pretreatment stage: the waste gas first passes through the pretreatment facility to remove particulate matter, moisture and catalyst poisons to prevent catalyst poisoning and blockage; preheating stage: the pretreated waste gas enters the thermal storage chamber, absorbs heat through the ceramic thermal storage body, and raises the waste gas temperature to a temperature close to that required for catalytic combustion; catalytic combustion stage: the preheated waste gas enters the catalytic combustion chamber, and under the action of the catalyst (such as platinum, palladium and other precious metal catalysts), the organic matter undergoes oxidation reaction with oxygen at a lower temperature (usually 200-400°C) to generate carbon dioxide and water; heat recovery stage: the high-temperature gas after the reaction passes through another thermal storage chamber to transfer heat to the cold waste gas that is about to enter the system, completing the heat recovery cycle.

[0003] The heat utilization rate of the heat storage catalytic combustion treatment process is not high, and some factories also need to be equipped with steam generators to provide high-temperature steam for production. The present invention designs a new and efficient heat storage incinerator based on the actual needs of the factory. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides a heat storage incinerator, which solves the problem that the heat utilization rate generated by the traditional heat storage catalytic combustion treatment process is low, and some factories also need to be equipped with steam generators to provide high-temperature steam for production. The use of heat storage catalytic combustion and steam generator alone is not conducive to the efficient utilization of heat.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: A regenerative incinerator comprises a horizontally placed integrated tank, wherein a burner, a catalytic chamber and an evaporator are sequentially arranged in the integrated tank from one end to the other end; Among them, the burner mixes harmful exhaust gas containing organic matter with natural gas and burns it. The heated secondary exhaust gas produced by the combustion is catalytically oxidized in the catalyst chamber, and the exhaust gas produced by the catalytic oxidation is heat-exchanged in the evaporator.

[0006] Preferably, it also includes: Heat exchanger: the tail gas generated by catalytic oxidation passes through the evaporator to form superheated tail gas. The heat exchanger is used to exchange heat between the superheated tail gas and the harmful tail gas containing organic matter before entering the burner.

[0007] Preferably, the burner comprises: An annular guide housing, wherein the annular guide housing is mounted on the outer end of the integrated tank, and the inner cavity of the annular guide housing is communicated with the interior of the integrated tank, and the annular guide housing is connected to the gas outlet end of the exhaust system; A natural gas supply pipeline, wherein the gas outlet end of the natural gas supply pipeline is connected to the end of the annular guide shell, and the natural gas supply pipeline is in communication with the inner cavity of the annular guide shell; An annular fire cover grid frame, wherein the annular fire cover grid frame is installed at the inner end of the integrated tank, and an igniter is fixedly installed at the center of the annular fire cover grid frame; A heat-resistant lining is fixedly installed in the integrated tank at a position corresponding to the combustion area of ​​the burner; The exhaust system comprises: Heat exchangers, air filters, transfer fans, and A first short pipe connected between the harmful exhaust gas outlet of the heat exchanger and the air filter, a second short pipe connected between the air filter and the transfer fan, and an exhaust pipe group connected between the transfer fan and the annular guide shell.

[0008] Preferably, it also includes: An oxygen supply pipe group, wherein an oxygen increase port corresponding to the combustion area of ​​the burner is fixedly arranged on the side of the integrated tank, and the oxygen supply pipe group comprises: a first fan and a first pipeline, wherein the air outlet end of the first fan is fixedly installed with the first end of the first pipeline, and the second end of the first pipeline is fixedly connected with the oxygen increase port; A mixing branch pipe is connected to the side of the exhaust pipe group through a three-way joint, a regulating valve is installed on the mixing branch pipe, and one end of the mixing branch pipe is connected to the first pipeline.

[0009] Preferably, the heat exchanger comprises: A quadrilateral shell, wherein four sides of the quadrilateral shell are respectively provided with a harmful exhaust gas inlet and a harmful exhaust gas outlet along a first direction and a common exhaust gas inlet and a common exhaust gas outlet along a second direction; A heat exchange core, the heat exchange core is fixedly installed on the inner side of the quadrilateral shell, and the heat exchange core comprises: a first plate body and a second plate body arranged in parallel, and a plurality of heat exchange air pipes are connected between the first plate body and the second plate body; The common exhaust gas inlet is connected to the inside of the integrated tank and is used to guide the overheated exhaust gas into the heat exchanger. The common exhaust gas outlet is connected to a harmful exhaust gas guiding pipe group.

[0010] Preferably, the harmful exhaust gas guiding pipe group includes: an air intake pipe, a second fan, an air outlet pipe, and a mixing air pipe, one end of the air intake pipe is connected to the air inlet of the second fan, one end of the air outlet pipe is connected to the air outlet of the second fan, one end of the mixing air pipe is connected to the ordinary exhaust gas outlet, and the other end of the mixing air pipe is connected to the side of the air intake pipe through a three-way interface.

[0011] Preferably, the catalyst chamber comprises: a porous refractory heat storage body, the porous refractory heat storage body is fixedly installed in the integrated tank, a plurality of fine holes are opened at the end of the porous refractory heat storage body, and the inner walls of the fine holes are fixedly bonded with a catalyst.

[0012] Preferably, the evaporator comprises: An evaporation chamber, which is annular and fixedly connected to the integrated tank; A preheating chamber, the preheating chamber is fixedly connected in the integrated tank, the preheating chamber is arranged at one end of the evaporation chamber away from the catalytic chamber, the preheating chamber comprises a hollow cylinder and a preheating shell, the preheating shell is arranged inside the hollow cylinder, and the hollow cylinder and the preheating shell are connected through a plurality of branch water pipes; A plurality of spiral heat exchange tubes distributed in an annular manner are connected between the evaporation chamber and the preheating chamber; A steam outlet is arranged on the side of the evaporation chamber, and a cold water inlet is arranged on the side of the preheating chamber.

[0013] Preferably, the evaporation chamber comprises: an evaporation chamber shell, an annular end plate is fixedly connected to one end of the evaporation chamber shell facing the catalyst chamber, a plurality of heat exchange blades are fixedly connected to the end surface of the annular end plate, a heat exchange column is fixedly connected to the inner side of the evaporation chamber shell, and the heat exchange column has a first section located at the center of the evaporation chamber shell and a second section located inside the evaporation chamber shell; The evaporation chamber shell comprises: a cylindrical outer shell, a first end portion is fixedly connected to one end of the cylindrical outer shell away from the catalytic chamber, a first cylindrical inner shell is fixedly connected to the inner side of the first end portion, a second end portion is fixedly connected to the end of the first cylindrical inner shell, and a second cylindrical inner shell is fixedly connected to the inner side of the second end portion; The side surface of the second end is provided with a liquid inlet interface portion corresponding to the end of the spiral heat exchange tube; The heat exchange column is fixedly connected to the second cylindrical inner shell.

[0014] Preferably, a first liquid outlet interface is provided on the inner side of the hollow cylinder, and the preheating shell comprises: a hollow disc, an end of the hollow disc is provided with a second liquid outlet interface corresponding to the end of the spiral heat exchange tube, and one end of the hollow disc away from the spiral heat exchange tube is fixedly connected to a plurality of heat exchange plate cavities arranged at intervals; The end of the integrated tank is provided with a flat top, the heat exchange plate cavity comprises a first part and a second part, the first parts of several heat exchange plate cavities form a cylindrical profile, and the second parts of several heat exchange plate cavities form a flat top profile.

[0015] The present invention provides a regenerative incinerator having the following beneficial effects: The present invention adopts a horizontally placed integrated tank, a catalyst chamber is installed in the middle section of the integrated tank, and a burner and an evaporator are respectively designed at both ends of the catalyst chamber. In this way, the catalytic combustion treatment of harmful tail gas containing organic matter is cleverly combined with the heating process of the evaporator. The harmful tail gas containing organic matter is mixed with natural gas by the burner and then burned to achieve heating of the harmful tail gas containing organic matter (it will also involve the combustion of a part of the gas). This process achieves the heating of the gas to form heated secondary tail gas. The temperature of the heated secondary tail gas can be regulated according to the mixing ratio of the harmful tail gas containing organic matter and the natural gas. Specifically, the higher the natural gas content, the more intense the combustion. The oxygen in the harmful tail gas containing organic matter provides a combustion environment. The temperature of the heated secondary tail gas passes through the catalyst chamber at a temperature above 750°C (in the catalyst chamber, the catalytic oxidation process can be carried out when the temperature is generally higher than 225°C). The catalytic oxidation process continues to consume the organic matter in the heated secondary tail gas and generates a heat release process, so that more heat can be provided for the subsequent heat exchange at the evaporator. Compared with the use of heat storage catalytic combustion and steam generator alone, the whole process has higher heat utilization and is more economical and environmentally friendly.

[0016] In the present invention, the catalytic oxidation process of the heated secondary exhaust gas through the catalyst chamber does not completely rely on the heating of the porous refractory heat storage body in the catalyst chamber, and its start-up process is relatively convenient. For example, in the early stage of system operation, the mixture ratio of the harmful exhaust gas containing organic matter and natural gas is relatively small (the natural gas content is relatively high), and the heated secondary exhaust gas can be fully heated. When the subsequent system is running stably, the mixing ratio of the harmful exhaust gas containing organic matter and natural gas can be appropriately increased to give full play to the heat in the catalytic oxidation process of the harmful exhaust gas containing organic matter. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional diagram of a regenerative incinerator proposed by the present invention; Figure 2 A front view of a regenerative incinerator proposed by the present invention; Figure 3 A top view of a regenerative incinerator proposed by the present invention; Figure 4 A side view of a regenerative incinerator proposed by the present invention; Figure 5 for Figure 3 Section view of the section line at AA; Figure 6 A three-dimensional diagram of a steam generator of a regenerative incinerator proposed by the present invention; Figure 7 This is an exploded view of a steam generator of a regenerative incinerator proposed by the present invention; Figure 8A three-dimensional diagram of an evaporation chamber shell of a regenerative incinerator proposed by the present invention; Fig. 9 A three-dimensional diagram of a spiral heat exchange tube and a preheating chamber of a regenerative incinerator proposed by the present invention; Fig.10 A three-dimensional diagram of a preheating shell of a regenerative incinerator proposed by the present invention; Fig.11 A three-dimensional diagram of a heat exchange plate cavity of a regenerative incinerator proposed by the present invention; Fig.12 This is a three-dimensional diagram of a heat exchange core of a thermal storage incinerator proposed by the present invention.

[0018] Among them, 1. burner; 101. annular guide shell; 102. natural gas supply pipeline; 103. annular fire cover grid; 104. igniter; 105. heat-resistant lining; 106. oxygen increase port; 2. catalyst chamber; 201. porous refractory heat storage body; 20101. pores; 20102. catalyst; 3. evaporator; 301. evaporation chamber; 30101. evaporation chamber shell; 301011. cylindrical shell; 301012. first end; 301013, first cylindrical inner shell; 301014, second end; 301015, second cylindrical inner shell; 301016, liquid inlet interface; 30102, annular end plate; 30103, heat exchange blade; 30104, steam outlet; 30105, heat exchange column; 302, preheating chamber; 30201, hollow cylinder; 30202, cold water inlet; 30203, first liquid outlet interface; 30204, preheating Shell; 302041, hollow disc; 302042, second liquid outlet interface; 302043, heat exchange plate cavity; 3020431, first part; 3020432, second part; 30205, branch pipe; 303, spiral heat exchange tube; 4, heat exchanger; 401, quadrilateral shell; 402, heat exchange core; 40201, first plate body; 40202, second plate body; 40203, heat exchange air pipe; 403, harmful exhaust gas inlet ; 404, harmful exhaust gas outlet; 405, ordinary exhaust gas inlet; 406, ordinary exhaust gas outlet; 5, harmful exhaust gas guide pipe group; 501, air inlet pipe; 502, second fan; 503, air outlet pipe; 504, mixed gas pipe; 6, oxygen supply pipe group; 601, first fan; 602, first pipeline; 7, exhaust pipe group; 701, mixing branch pipe; 7011, regulating valve; 8, first short pipe; 9, transfer fan; 10, air filter. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0020] like Figure 1-Figure 12 As shown, an embodiment of the present invention provides a regenerative incinerator, including a horizontally placed integrated tank, in which a burner 1, a catalyst chamber 2, and an evaporator 3 are arranged in sequence from one end to the other end. The integrated tank adopts a horizontal structure that is conducive to the airflow flowing horizontally through the catalyst chamber 2 and the evaporator 3. The burner 1 is used to burn a mixture of harmful exhaust gas and natural gas. The heated secondary exhaust gas formed after combustion is above 750°C, and then passes through the catalyst chamber 2. Under the action of the catalyst, the organic matter remaining in the heated secondary exhaust gas is further oxidized and releases heat, and part of the heat is retained in the catalyst chamber 2, which is conducive to the subsequent catalytic oxidation of the heated secondary exhaust gas. The exhaust gas generated after catalytic oxidation is ordinary combustion exhaust gas (after simple treatment, exhaust gas with emission standards can be obtained). The exhaust gas generated after catalytic oxidation passes through the evaporator 3 to heat the liquid in the evaporator 3 (exchange heat with the liquid in the evaporator 3). The liquid in the evaporator 3 is heated and evaporated to generate steam, and the steam can be used in the factory after drying.

[0021] The process of gas passing through the integrated tank mainly includes: the burner 1 mixes the harmful exhaust gas containing organic matter with natural gas and burns it, the heated secondary exhaust gas generated by the combustion passes through the catalyst chamber 2 for catalytic oxidation, and the exhaust gas generated by the catalytic oxidation passes through the evaporator 3 for heat exchange.

[0022] In this embodiment, a horizontal integrated tank is selected, the catalyst chamber 2 is installed in the middle section of the integrated tank, and a burner 1 and an evaporator 3 are respectively designed at both ends of the catalyst chamber 2. In this way, the catalytic combustion treatment of the harmful exhaust gas containing organic matter is cleverly combined with the heating process of the evaporator 3. The harmful exhaust gas containing organic matter is mixed with natural gas by the burner 1 and then burned to achieve heating of the harmful exhaust gas containing organic matter (which will also involve the combustion of a part of the gas). This process heats the gas to form heated secondary exhaust gas. The temperature of the heated secondary exhaust gas can be adjusted according to the temperature of the harmful exhaust gas containing organic matter. The mixing ratio with natural gas is regulated. The higher the natural gas content is, the more intense the combustion is. The oxygen in the harmful exhaust gas containing organic matter provides a combustion environment. The temperature of the heated secondary exhaust gas is above 750°C and passes through the catalyst chamber 2 (in the catalyst chamber 2, the catalytic oxidation process can generally be carried out at a temperature higher than 225°). The catalytic oxidation process continues to consume the organic matter in the heated secondary exhaust gas and produces an exothermic process, which can provide more heat for the subsequent heat exchange at the evaporator 3. Compared with the use of heat storage catalytic combustion and steam generator alone, the whole process has higher heat utilization, is more economical and environmentally friendly.

[0023] Since the catalytic oxidation process of the heated secondary exhaust gas through the catalyst chamber 2 in the present scheme does not completely rely on the heating of the porous refractory heat storage body 201 in the catalyst chamber 2, its startup process is relatively convenient. For example, in the early stage of system operation, the mixture of harmful exhaust gas containing organic matter and natural gas is relatively small (the natural gas content is relatively high), which can fully heat the heated secondary exhaust gas. When the subsequent system is running stably, the mixing ratio of harmful exhaust gas containing organic matter and natural gas can be appropriately increased to give full play to the heat in the catalytic oxidation process of harmful exhaust gas containing organic matter.

[0024] In one embodiment, in order to further utilize the heat in the superheated exhaust gas formed by the exhaust gas generated by catalytic oxidation after passing through the evaporator 3, a heat exchanger 4 is also designed. The heat exchanger 4 is used to exchange heat between the superheated exhaust gas and the harmful exhaust gas containing organic matter before entering the burner 1. It can cool the superheated exhaust gas, which is beneficial for subsequent discharge, and heat the harmful exhaust gas containing organic matter before entering the burner 1, thereby improving the efficiency of subsequent system operation.

[0025] In one embodiment, the burner 1 specifically includes: an annular guide shell 101 , a natural gas supply pipeline 102 , an annular fire cover grid 103 , an igniter 104 and a heat-resistant lining 105 .

[0026] A heat-resistant lining 105 is fixedly installed in the integrated tank at a position corresponding to the combustion area of ​​the burner 1. The heat-resistant lining 105 is made of heat-resistant ceramic material and is used to protect the inner wall of the integrated tank. The annular guide shell 101 is installed at the outer end of the integrated tank, and the inner cavity of the annular guide shell 101 is connected to the interior of the integrated tank. The annular guide shell 101 is connected to the outlet end of the exhaust system. The exhaust system is used to guide harmful exhaust gas containing organic matter. The harmful exhaust gas containing organic matter first enters the annular guide shell 101. The outlet end of the natural gas supply pipeline 102 is connected to the annular guide shell. The end of the annular guide shell 101 is connected, and the natural gas supply pipeline 102 is connected to the inner cavity of the annular guide shell 101. The natural gas is mixed with harmful exhaust gas containing organic matter in the annular guide shell 101. The annular fire cover grid 103 is installed at the inner end of the integrated tank, and the center of the annular fire cover grid 103 is fixedly installed with an igniter 104. The function of the annular fire cover grid 103 is to disperse the mixed gas of natural gas and harmful exhaust gas containing organic matter, and to install the igniter 104. The igniter 104 is used to ignite the mixed gas of natural gas and harmful exhaust gas containing organic matter.

[0027] The exhaust system includes: a heat exchanger 4, an air filter 10, a transfer fan 9, a first short pipe 8 connected between the harmful exhaust gas outlet 404 of the heat exchanger 4 and the air filter 10, a second short pipe connected between the air filter 10 and the transfer fan 9, and an exhaust pipe group 7 connected between the transfer fan 9 and the annular guide shell 101. The flow process of the harmful exhaust gas containing organic matter inside the exhaust system is as follows: it enters through the harmful exhaust gas inlet 403 of the heat exchanger 4, then is preheated by the heat exchanger 4, flows out from the harmful exhaust gas outlet 404, and then passes through the first short pipe 8, the air filter 10, the second short pipe, the transfer fan 9, and the exhaust pipe group 7 to enter the annular guide shell 101, wherein the air filter 10 is used to filter solid particles in the harmful exhaust gas containing organic matter, and the transfer fan 9 provides airflow driving force.

[0028] In one embodiment, in order to ensure that the oxygen content inside the integrated tank is controllable, the process of over-oxygen combustion and over-oxygen catalytic oxidation can be realized (from another perspective, it can be understood that the oxygen content in the harmful exhaust gas containing organic matter is insufficient and further oxygen needs to be provided), and the oxygen supply pipe group 6 is also designed. The side of the integrated tank is fixedly provided with an oxygen increase port 106 corresponding to the combustion area of ​​the burner 1, so that the oxygen provided by the oxygen supply pipe group 6 enters the combustion area of ​​the burner 1 of the integrated tank through the oxygen increase port 106. The oxygen supply pipe group 6 specifically includes: a first fan 601 and a first pipeline 602. The air outlet end of the first fan 601 is fixedly installed with the first end of the first pipeline 602, and the second end of the first pipeline 602 is fixedly connected to the oxygen increase port 106. The first fan 601 sends air into the first pipeline 602, and the first pipeline 602 guides the air into the oxygen increase port 106.

[0029] A mixing branch pipe 701 is connected to the side of the exhaust pipe group 7 via a three-way joint. A regulating valve 7011 is installed on the mixing branch pipe 701 . One end of the mixing branch pipe 701 is connected to the first pipeline 602 .

[0030] The mixing branch pipe 701 is used to premix some harmful exhaust gas containing organic matter with the air in the first pipeline 602. The specific mixing ratio can be adjusted by the regulating valve 7011. The mixed gas entering the combustion area of ​​the burner 1 from the oxygen increase port 106 can be heated by the combustion process of the burner 1.

[0031] In one embodiment, the heat exchanger 4 includes: a quadrilateral shell 401 and a heat exchange core 402, and the four sides of the quadrilateral shell 401 are respectively provided with a harmful exhaust gas inlet 403 and a harmful exhaust gas outlet 404 along a first direction and a common exhaust gas inlet 405 and a common exhaust gas outlet 406 along a second direction, and the heat exchange core 402 is fixedly installed on the inner side of the quadrilateral shell 401, and the heat exchange core 402 includes: a first plate body 40201 and a second plate body 40202 arranged in parallel, and a plurality of heat exchange air pipes 40203 are connected between the first plate body 40201 and the second plate body 40202, the first direction is a direction passing through the inside of the heat exchange air pipe 40203, and the second direction is a direction perpendicular to the heat exchange air pipe 40203 and flowing through the gap of the heat exchange air pipe 40203.

[0032] The common exhaust gas inlet 405 is connected to the integrated tank to guide the superheated exhaust gas into the heat exchanger 4. The common exhaust gas outlet 406 is connected to the harmful exhaust gas guide pipe group 5, which is used to discharge / guide the cooled common exhaust gas to the next step of processing.

[0033] In one embodiment, the harmful exhaust gas guide pipe group 5 includes: an intake pipe 501, a second fan 502, an outlet pipe 503, and a mixing gas pipe 504, one end of the intake pipe 501 is connected to the air inlet of the second fan 502, one end of the outlet pipe 503 is connected to the air outlet of the second fan 502, one end of the mixing gas pipe 504 is connected to the common exhaust gas outlet 406, and the other end of the mixing gas pipe 504 is connected to the side of the intake pipe 501 through a three-way interface.

[0034] The second fan 502 works to draw the gas in the air inlet pipe 501 into the second fan 502, and then discharge it from the air outlet pipe 503. This process forms a negative pressure at the end of the mixed gas pipe 504, thereby sucking the exhaust liquid inside the mixed gas pipe 504 into the air inlet pipe 501, flowing into the second fan 502 with the air, and then discharged from the air outlet pipe 503.

[0035] In one embodiment, the catalyst chamber 2 includes: a porous refractory heat storage body 201, which is fixedly installed in the integrated tank, and a plurality of fine holes 20101 are opened at the end of the porous refractory heat storage body 201, and the inner wall of the fine hole 20101 is fixedly bonded with a catalyst 20102.

[0036] The porous refractory heat storage body 201 is made of ceramic material. The heated secondary exhaust gas above 750°C passes through the pores 20101 of the porous refractory heat storage body 201. Under the action of the catalyst 20102 bonded in the pores 20101, a catalytic oxidation process occurs, further consuming organic matter in the heated secondary exhaust gas and generating heat.

[0037] Part of this heat is used to maintain / heat the porous refractory heat storage body 201 at a high temperature, and the other part is used to heat the gas to provide more heat for the subsequent evaporator 3.

[0038] In one embodiment, the evaporator 3 includes: an evaporation chamber 301 , a preheating chamber 302 , and a plurality of spiral heat exchange tubes 303 distributed in an annular shape.

[0039] The evaporation chamber 301 is annular and fixedly connected in the integrated tank. The superheated exhaust gas flows through the center of the evaporation chamber 301. The preheating chamber 302 is fixedly connected in the integrated tank. The preheating chamber 302 is arranged at the end of the evaporation chamber 301 away from the catalyst chamber 2. The preheating chamber 302 includes a hollow cylinder 30201 and a preheating shell 30204. The preheating shell 30204 is arranged inside the hollow cylinder 30201. The hollow cylinder 30201 and the preheating shell 30204 form an annular air flow area, and the hollow cylinder 30201 is connected to the preheating shell 30204 through a plurality of branch water pipes 30205. A plurality of annularly distributed spiral heat exchange tubes 303 are connected between the evaporation chamber 301 and the preheating chamber 302. A steam outlet 30104 is arranged on the side of the evaporation chamber 301, and a cold water inlet 30202 is arranged on the side of the preheating chamber 302.

[0040] The use process of the evaporator 3 is as follows: cold water is pumped into the preheating chamber 302 from the cold water inlet 30202, and the cold water is preheated into warm water in the preheating chamber 302. Under the action of the pump pressure, the warm water passes through a plurality of annularly distributed spiral heat exchange tubes 303, and the warm water is further heated to high-temperature water in the plurality of annularly distributed spiral heat exchange tubes 303, and then enters the evaporation chamber 301, and the high-temperature water is further heated in the evaporation chamber 301 to generate steam. In the process, the pumping pressure at the cold water inlet 30202 is controlled so that the high-temperature water in the evaporation chamber 301 is not filled with liquid, so that the evaporation An air cavity with a certain pressure is formed above the high-temperature water in the cavity 301, and steam is generated at the interface between the air cavity and the high-temperature water. The steam is discharged from the steam outlet 30104 as needed for further processing and utilization; from the perspective of superheated exhaust gas, it is described as follows: the superheated exhaust gas is discharged from the fine hole 20101, contacts the end of the evaporation cavity 301, and then passes through the central hole of the evaporation cavity 301, flows through the annularly distributed spiral heat exchange tube 303, and then passes through the annular air flow area formed by the hollow cylinder 30201 and the preheating shell 30204, and then passes through the gap between the preheating shell 30204.

[0041] In one embodiment, the evaporation chamber 301 includes: an evaporation chamber shell 30101, an annular end plate 30102 is fixedly connected to one end of the evaporation chamber shell 30101 facing the catalyst chamber 2, a plurality of heat exchange blades 30103 are fixedly connected to the end surface of the annular end plate 30102, the heat exchange blades 30103 are used to improve the heat exchange efficiency, a heat exchange column 30105 is fixedly connected to the inner side of the evaporation chamber shell 30101, the heat exchange column 30105 has a first section located at the center of the evaporation chamber shell 30101 and a second section located inside the evaporation chamber shell 30101, and the heat exchange column 30105 is also used to improve the heat exchange efficiency.

[0042] The evaporation chamber shell 30101 includes: a cylindrical outer shell 301011, an end of the cylindrical outer shell 301011 away from the catalyst chamber 2 is fixedly connected to a first end 301012, the inner side of the first end 301012 is fixedly connected to a first cylindrical inner shell 301013, the end of the first cylindrical inner shell 301013 is fixedly connected to a second end 301014, and the inner side of the second end 301014 is fixedly connected to a second cylindrical inner shell 301015.

[0043] This structure allows the cylindrical outer shell 301011 to be designed to be longer, and a number of annularly distributed spiral heat exchange tubes 303 are arranged on the inner side of the first cylindrical inner shell 301013, so that the contact portion between the evaporation chamber shell 30101 and the integrated tank is larger, and the portion of the inner side of the integrated tank directly in contact with the superheated exhaust gas is smaller, thereby reducing the heat loss transferred to the outside through the side wall of the integrated tank.

[0044] Specifically, a liquid inlet interface portion 301016 corresponding to the end of the spiral heat exchange tube 303 is provided on the side of the second end portion 301014 , and the heat exchange column 30105 is fixedly connected to the second cylindrical inner shell 301015 .

[0045] In one embodiment, a first liquid outlet interface 30203 is provided on the inner side of the hollow cylinder 30201, and the preheating shell 30204 includes: a hollow disk 302041, a second liquid outlet interface 302042 corresponding to the end of the spiral heat exchange tube 303 is provided at the end of the hollow disk 302041, and a plurality of spaced heat exchange plate cavities 302043 are fixedly connected to one end of the hollow disk 302041 away from the spiral heat exchange tube 303, and an annular area is formed between the hollow cylinder 30201 and the hollow disk 302041, and the heat exchange column 30105 is used to connect the inner cavity of the hollow cylinder 30201 with the inner cavity of the hollow disk 302041.

[0046] A flat top is provided at the end of the integrated tank. The flat top is a portion of the top of the horizontally placed integrated tank cut off to form a top horizontal structure. The heat exchange plate cavity 302043 includes a first part 3020431 and a second part 3020432. The first parts 3020431 of several heat exchange plate cavities 302043 form a cylindrical outline, and the second parts 3020432 of several heat exchange plate cavities 302043 form a flat top outline.

[0047] like Figure 1 As shown in , in order to ensure the arrangement of each pipeline system, this embodiment also designs multiple groups of support members for supporting the pipeline system.

[0048] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A regenerative incinerator, comprising a horizontally placed integrated tank, characterized in that: The integrated tank is provided with a burner (1), a catalyst chamber (2), and an evaporator (3) in sequence from one end to the other end; A heat exchanger (4), wherein the tail gas generated by catalytic oxidation passes through the evaporator (3) to form superheated tail gas, and the heat exchanger (4) is used to exchange heat between the superheated tail gas and the harmful tail gas containing organic matter before entering the burner (1); The burner (1) mixes harmful exhaust gas containing organic matter with natural gas and then burns the mixture. The heated secondary exhaust gas generated by the combustion passes through the catalyst chamber (2) for catalytic oxidation. The exhaust gas generated by the catalytic oxidation passes through the evaporator (3) for heat exchange. The burner (1) comprises: An annular guide housing (101), the annular guide housing (101) being mounted on the outer end of the integrated tank, the inner cavity of the annular guide housing (101) being in communication with the interior of the integrated tank, and the annular guide housing (101) being connected to the gas outlet end of the exhaust system; A natural gas supply pipeline (102), wherein a gas outlet end of the natural gas supply pipeline (102) is connected to an end of the annular guide shell (101), and the natural gas supply pipeline (102) is in communication with an inner cavity of the annular guide shell (101); An annular fire cover grid frame (103), wherein the annular fire cover grid frame (103) is installed at the inner end of the integrated tank, and an igniter (104) is fixedly installed at the center of the annular fire cover grid frame (103); A heat-resistant lining (105) is fixedly installed in the integrated tank at a position corresponding to the combustion area of ​​the burner (1); The exhaust system comprises: A heat exchanger (4), an air filter (10), a transfer fan (9), and A first short pipe (8) connected between the harmful exhaust gas outlet (404) of the heat exchanger (4) and the air filter (10), a second short pipe connected between the air filter (10) and the transfer fan (9), and an exhaust pipe group (7) connected between the transfer fan (9) and the annular guide housing (101).

2. A regenerative incinerator according to claim 1, characterized in that: Also includes: An oxygen supply pipe group (6), wherein an oxygen increase port (106) corresponding to the combustion area of ​​the burner (1) is fixedly arranged on the side of the integrated tank, and the oxygen supply pipe group (6) comprises: a first fan (601) and a first pipeline (602), wherein the air outlet end of the first fan (601) is fixedly mounted to the first end of the first pipeline (602), and the second end of the first pipeline (602) is fixedly connected to the oxygen increase port (106); A mixing branch pipe (701) is connected to the side of the exhaust pipe group (7) via a three-way joint, a regulating valve (7011) is installed on the mixing branch pipe (701), and one end of the mixing branch pipe (701) is connected to the first pipeline (602).

3. A regenerative incinerator according to claim 1, characterized in that: The heat exchanger (4) comprises: A quadrilateral shell (401), wherein four sides of the quadrilateral shell (401) are respectively provided with a harmful exhaust gas inlet (403) and a harmful exhaust gas outlet (404) along a first direction, and a normal exhaust gas inlet (405) and a normal exhaust gas outlet (406) along a second direction; A heat exchange core (402), the heat exchange core (402) being fixedly mounted on the inner side of the quadrilateral shell (401), and the heat exchange core (402) comprising: a first plate body (40201) and a second plate body (40202) arranged in parallel, a plurality of heat exchange air pipes (40203) being connected between the first plate body (40201) and the second plate body (40202); The common exhaust gas inlet (405) is connected to the inside of the integrated tank and is used to guide the overheated exhaust gas into the heat exchanger (4). The common exhaust gas outlet (406) is connected to a harmful exhaust gas guide pipe group (5).

4. A regenerative incinerator according to claim 3, characterized in that: The harmful exhaust gas guiding pipe group (5) comprises: an air intake pipe (501), a second fan (502), an air outlet pipe (503), and a mixed gas pipe (504); one end of the air intake pipe (501) is connected to the air intake port of the second fan (502); one end of the air outlet pipe (503) is connected to the air outlet port of the second fan (502); one end of the mixed gas pipe (504) is connected to the common exhaust gas outlet (406); and the other end of the mixed gas pipe (504) is connected to the side of the air intake pipe (501) via a three-way interface.

5. The regenerative thermal incinerator according to claim 1, characterized in that: The catalytic chamber (2) comprises: a porous refractory heat storage body (201), the porous refractory heat storage body (201) being fixedly installed in the integrated tank, a plurality of fine holes (20101) being opened at the end of the porous refractory heat storage body (201), and a catalyst (20102) being fixedly bonded to the inner wall of the fine hole (20101).

6. A regenerative thermal incinerator according to claim 1, characterized in that: The evaporator (3) comprises: An evaporation chamber (301), the evaporation chamber (301) is annular and fixedly connected in the integrated tank; A preheating chamber (302), the preheating chamber (302) being fixedly connected in the integrated tank, the preheating chamber (302) being arranged at one end of the evaporation chamber (301) away from the catalytic chamber (2), the preheating chamber (302) comprising a hollow cylinder (30201) and a preheating shell (30204), the preheating shell (30204) being arranged inside the hollow cylinder (30201), and the hollow cylinder (30201) and the preheating shell (30204) being connected via a plurality of branch water pipes (30205); A plurality of spiral heat exchange tubes (303) distributed in an annular manner are connected between the evaporation chamber (301) and the preheating chamber (302); A steam outlet (30104) is provided on the side of the evaporation chamber (301), and a cold water inlet (30202) is provided on the side of the preheating chamber (302).

7. A regenerative thermal incinerator according to claim 6, characterized in that: The evaporation chamber (301) comprises: an evaporation chamber shell (30101), an annular end plate (30102) being fixedly connected to one end of the evaporation chamber shell (30101) facing the catalyst chamber (2), a plurality of heat exchange blades (30103) being fixedly connected to the end surface of the annular end plate (30102), a heat exchange column (30105) being fixedly connected to the inner side of the evaporation chamber shell (30101), the heat exchange column (30105) comprising a first section located at the center of the evaporation chamber shell (30101) and a second section located inside the evaporation chamber shell (30101); The evaporation chamber shell (30101) comprises: a cylindrical outer shell (301011), an end of the cylindrical outer shell (301011) away from the catalytic chamber (2) being fixedly connected to a first end portion (301012), an inner side of the first end portion (301012) being fixedly connected to a first cylindrical inner shell (301013), an end of the first cylindrical inner shell (301013) being fixedly connected to a second end portion (301014), and an inner side of the second end portion (301014) being fixedly connected to a second cylindrical inner shell (301015); A liquid inlet interface portion (301016) corresponding to the end of the spiral heat exchange tube (303) is provided on the side of the second end portion (301014); The heat exchange column (30105) is fixedly connected to the second cylindrical inner shell (301015).

8. A regenerative thermal incinerator according to claim 7, characterized in that: A first liquid outlet interface (30203) is provided on the inner side of the hollow cylinder (30201); the preheating shell (30204) comprises: a hollow disk (302041); a second liquid outlet interface (302042) corresponding to the end of the spiral heat exchange tube (303) is provided at the end of the hollow disk (302041); and a plurality of heat exchange plate cavities (302043) arranged at intervals are fixedly connected to one end of the hollow disk (302041) away from the spiral heat exchange tube (303); A flat top is provided at the end of the integrated tank, and the heat exchange plate cavity (302043) comprises a first part (3020431) and a second part (3020432), the first parts (3020431) of a plurality of heat exchange plate cavities (302043) form a cylindrical profile, and the second parts (3020432) of a plurality of heat exchange plate cavities (302043) form a flat top profile.

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