Cooling device for air outlet of heat storage combustion furnace

Abstract

The utility model discloses a heat storage combustion furnace air outlet cooling device which comprises a machine box, a rotating rod is rotationally connected to the bottom of the machine box, a driving mechanism for driving the rotating rod to rotate is arranged on one side of the machine box, and a heat exchange assembly is arranged above a base. A first gas chamber, a second gas chamber and a water tank are respectively fixed at the bottom of an inner cavity of the case; by arranging the heat storage ceramics capable of being rotatably switched, after gas is introduced into one heat storage ceramic for heat exchange, the gas is re-pumped into the other heat storage ceramic through the circulating pipe and the circulating air pump, so that the contact time of the gas and heat exchange equipment can be prolonged, and the temperature of the gas can be reduced; and by arranging the water spraying mechanism, the ceramic subjected to heat storage sprays water to the internal through groove through the upper portion, the heat storage ceramic is cooled, water subjected to heat exchange is discharged from the bottom of the machine box, and the cooled heat storage ceramic rotates, and gas is introduced again for heat exchange.

Description

Technical Field

[0001] The utility model relates to the technical field of regenerative combustion equipment, in particular to a temperature reduction device for the air outlet of a regenerative combustion furnace. Background Technique

[0002] A regenerative combustion furnace is a device that heats organic waste gas to above 760 degrees Celsius to oxidize and decompose VOC in the waste gas into carbon dioxide and water. The high-temperature gas generated by oxidation flows through a special ceramic regenerator to heat up the ceramic body and store heat, and this stored heat is used to preheat the subsequent incoming organic waste gas. Thereby saving the fuel consumption for heating the waste gas. The ceramic regenerator should be divided into two (including two) or more zones or chambers, and each regenerator chamber successively undergoes procedures such as heat storage - heat release - cleaning, etc., and works continuously in a cycle.

[0003] The temperature of the gas after heat exchange decreases and is discharged through an exhaust pipe. Even though the temperature of the gas will decrease after heat exchange, the discharged gas temperature is still relatively high and needs to be cooled during discharge.

[0004] Chinese Patent CN115234928A discloses an exhaust gas cooling device for the outlet of an RTO regenerative combustion furnace, including a spray cooling structure. The spray cooling structure includes a spray cooling outer shell, and two maintenance holes are provided on the front surface of the spray cooling outer shell; through the air duct extension mechanism, not only can the flow path of the cooling absorption liquid be further extended, but also the flow path of the exhaust gas can be extended, so that the exhaust gas and the cooling absorption liquid travel a longer distance in full contact, which helps to further increase the contact time between the exhaust gas and the cooling absorption liquid, and the effect of the cooling absorption liquid on cooling the exhaust gas and absorbing inorganic compounds inside it is more significant.

[0005] This device extends the contact time between the gas and the cooling equipment by setting an air duct extension mechanism in the spray tower to achieve the effect of improving the cooling effect. The air duct extension mechanism is mainly realized by setting a partition layer, opening through holes at the bottom of the partition layer, and fixing a water absorption component inside that can reduce the water flow, but this method is likely to affect the gas circulation, and dust is more likely to accumulate and cause air duct blockage after the device has been used for a period of time. Content of the Utility Model

[0006] The purpose of the utility model is to provide a temperature reduction device for the air outlet of a regenerative combustion furnace to solve the problems in the prior art that the air duct extension mechanism of the existing temperature reduction equipment at the air outlet of the regenerative combustion furnace is likely to affect the gas circulation and the equipment is prone to blockage as mentioned in the background technique.

[0007] To achieve the above object, the present utility model provides the following technical solutions: A temperature reduction device for the air outlet of a regenerative combustion furnace, including a chassis, a rotating rod is rotatably connected to the bottom of the chassis, a base is rotatably connected above the rotating rod, a driving mechanism for driving the rotation of the rotating rod is arranged on one side of the chassis, a heat exchange component is arranged above the base, and a first gas chamber, a second gas chamber and a water pool are respectively fixed to the bottom of the inner cavity of the chassis; an air supply component for introducing the gas to be cooled and a water spraying mechanism for cooling the gas are respectively arranged on the top of the chassis;

[0008] The heat exchange component includes a heat insulation plate and regenerative ceramics, the regenerative ceramics are fixedly connected to the inner wall of the heat insulation plate, and there are four regenerative ceramics.

[0009] Preferably, the heat insulation plate is arranged in a cross shape, the bottom end of the heat insulation plate is fixedly connected to the base, the cross section of the regenerative ceramics is in a fan shape, and a plurality of through grooves for the passage of gas and water are arranged in the inner cavity of the regenerative ceramics.

[0010] Preferably, the air supply component includes a circulation pipe, one side of the first gas chamber is communicated with a first air outlet pipe, the first air outlet pipe is fixedly connected to one end of the circulation pipe, and the other end of the circulation pipe penetrates through the top of the chassis and is located above one of the regenerative ceramics.

[0011] Preferably, the air supply component further includes a circulation air pump, the circulation air pump is installed in the pipeline connecting the first air outlet pipe and the circulation pipe, and one end of the second gas chamber is communicated with a second air outlet pipe.

[0012] Preferably, the air supply component further includes an air inlet pipe, one end of the air inlet pipe and the other end of the circulation pipe are both communicated with an air supply branch pipe, there are a plurality of air supply branch pipes, and the air outlet ends of the plurality of air supply branch pipes are all located above the regenerative ceramics.

[0013] Preferably, the water spraying mechanism includes a cylinder and a spraying plate, the cylinder is fixedly connected to the chassis, the spraying plate is fixed to the telescopic end of the cylinder, and a water inlet pipe is communicated with the top of the spraying plate.

[0014] Preferably, there are two groups of the cylinder, the spraying plate and the water inlet pipe, and the two groups of spraying plates are respectively located above two groups of the regenerative ceramics.

[0015] Preferably, the driving mechanism includes a driving motor, synchronous pulleys are fixedly arranged on the output end of the driving motor and the outer wall of the rotating rod, and the two groups of synchronous pulleys are connected by a synchronous belt.

[0016] Compared with the prior art, the beneficial effects of the present utility model are:

[0017] The utility model prolongs the contact time between the gas and the heat exchange device and reduces the gas temperature by arranging heat storage ceramics that can be rotated and switched, so that after the gas passes through one of the heat storage ceramics for heat exchange, the gas is pumped back into the other heat storage ceramic through the circulation pipe and the circulation air pump. By arranging a water spraying mechanism, water is sprayed into the internal through groove of the heat storage ceramic from above to cool the heat storage ceramic, and the water after heat exchange is discharged from the bottom of the chassis. After the heat storage ceramic is cooled, it is rotated and the gas is reintroduced for heat exchange. This method can cool another group of heat storage ceramics while the heat storage ceramics store heat, and perform cyclic heat exchange to improve the cooling effect. The through groove is set as a straight groove, so that the dust in the through groove can be washed out while spraying water, reducing the possibility of equipment blockage. Description of the Drawings

[0018] Figure 1 is a schematic position diagram of the heat storage ceramic of the utility model;

[0019] Figure 2 is a schematic internal structure diagram of the chassis of the utility model;

[0020] Figure 3 is a schematic position diagram of the first gas chamber and the second gas chamber of the present utility model;

[0021] Figure 4 is a schematic position diagram of the second air outlet pipe of the present utility model.

[0022] In the figure: 1, chassis; 2, rotating rod; 3, base; 4, driving mechanism; 5, first gas chamber; 6, second gas chamber; 7, water tank; 8, ventilation assembly; 9, water spraying mechanism; 10, heat insulation board; 11, heat storage ceramic; 12, through groove; 801, circulation pipe; 802, first air outlet pipe; 803, circulation air pump; 804, second air outlet pipe; 805, air inlet pipe; 806, ventilation branch pipe; 901, cylinder; 902, spraying plate; 903, water inlet pipe; 401, driving motor; 402, synchronous pulley. Detailed Embodiment

[0023] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0024] Please refer to Figures 1-4, the utility model provides a technical solution: a temperature reduction device for the air outlet of a regenerative combustion furnace, which includes a chassis 1. A rotating rod 2 is rotatably connected to the bottom of the chassis 1, and a base 3 is rotatably connected above the rotating rod 2. A driving mechanism 4 for driving the rotation of the rotating rod 2 is arranged on one side of the chassis 1. A heat exchange component is arranged above the base 3. At the bottom of the inner cavity of the chassis 1, a first gas chamber 5, a second gas chamber 6 and a water pool 7 are respectively fixed. An air venting component 8 for introducing the gas to be cooled and a water spraying mechanism 9 for cooling the gas are respectively arranged at the top of the chassis 1;

[0025] The heat exchange component includes a heat insulation plate 10 and regenerative ceramics 11. The regenerative ceramics 11 are fixedly connected to the inner wall of the heat insulation plate 10, and there are four regenerative ceramics 11.

[0026] By setting the regenerative ceramics 11 to exchange heat with the incoming gas, the purpose of cooling the gas is achieved. The regenerative ceramics 11 are cooled by rotation and then by spraying cold water. After cooling, the regenerative ceramics 11 rotate to below the intake pipe 805 to cool the gas.

[0027] The heat insulation plate 10 is arranged in a cross shape, the bottom end of the heat insulation plate 10 is fixedly connected to the base 3, the cross section of the regenerative ceramics 11 is fan-shaped, and a number of through grooves 12 for gas and water to pass through are opened in the inner cavity of the regenerative ceramics 11.

[0028] The through grooves 12 are set as a number of circular straight holes for gas to pass through. When cooling the regenerative ceramics 11, water is sprayed into the through grooves 12. The cold water exchanges heat with the regenerative ceramics 11 and flushes out the dust generated when the gas passes through the through grooves 12, reducing the possibility of equipment blockage.

[0029] The air venting component 8 includes a circulation pipe 801. One side of the first gas chamber 5 is communicated with a first air outlet pipe 802. The first air outlet pipe 802 is fixedly connected to one end of the circulation pipe 801. The other end of the circulation pipe 801 penetrates through the top of the chassis 1 and is located above one of the regenerative ceramics 11. By setting the first gas chamber 5, the gas exchanges heat with the regenerative ceramics 11 for the first time and then enters the first gas chamber 5, and is pumped out by a circulation pump.

[0030] The air venting component 8 further includes a circulation air pump 803. The circulation air pump 803 is installed in the pipeline connecting the first air outlet pipe 802 and the circulation pipe 801. One end of the second gas chamber 6 is communicated with a second air outlet pipe 804.

[0031] By setting the second gas chamber 6, the extracted gas re-enters another regenerative ceramics 11 in the heat insulation plate 10, and the gas cooled by heat exchange again is introduced into the second gas chamber 6 and discharged from the second air outlet pipe 804.

[0032] The ventilation assembly 8 further includes an intake pipe 805. One end of the intake pipe 805 and the other end of the circulation pipe 801 are both connected to a ventilation branch pipe 806. A plurality of ventilation branch pipes 806 are provided. The outlet ends of the plurality of ventilation branch pipes 806 are all located above the regenerative ceramic 11. By providing the intake pipe 805, the gas discharged from the regenerative combustion furnace is discharged into the cooling device through the intake pipe 805. By providing the ventilation branch pipes 806, the gas is dispersed into multiple outlets and evenly sprayed into the regenerative ceramic 11.

[0033] The water spraying mechanism 9 includes a cylinder 901 and a spraying plate 902. The cylinder 901 is fixedly connected to the chassis 1. The spraying plate 902 is fixed to the telescopic end of the cylinder 901. A water inlet pipe 903 is connected to the top of the spraying plate 902. By providing the cylinder 901, when the spraying plate 902 needs to spray water, the cylinder 901 drives the spraying plate 902 to move downward and closely adhere to the top of the regenerative ceramic 11 to wash and cool the through slots 12 of the regenerative ceramic 11.

[0034] Two sets of the cylinder 901, the spraying plate 902 and the water inlet pipe 903 are provided. The two sets of spraying plates 902 are respectively located above two sets of the regenerative ceramics 11. By providing the two sets of spraying plates 902, the regenerative ceramic 11 is cooled twice by rotation.

[0035] The driving mechanism 4 includes a driving motor 401. Synchronous wheels 402 are fixedly provided on the output end of the driving motor 401 and the outer wall of the rotating rod 2. The two sets of synchronous wheels 402 are connected by a synchronous belt. After starting the driving motor 401, the two synchronous wheels 402 are rotated by the synchronous belt.

[0036] During use, the gas discharged from the regenerative combustion furnace is discharged into the cooling device through the intake pipe 805. By providing the ventilation branch pipes 806, the gas is dispersed into multiple outlets and evenly sprayed into one of the regenerative ceramics 11. After the gas exchanges heat with the regenerative ceramic 11 for the first time, it enters the first gas chamber 5 and is pumped out by a circulation pump. The pumped gas re-enters another regenerative ceramic 11 in the heat insulation plate 10, and the gas that has been cooled by heat exchange again is introduced into the second gas chamber 6 and discharged through the second outlet pipe 804. This process can extend the contact time of the gas with the heat exchange and cooling equipment and improve the cooling effect; the temperature of the regenerative ceramic 11 above the first gas chamber 5 is higher than that of the regenerative ceramic 11 above the second first gas chamber 5.

[0037] After the heat storage ceramic 11 above the first gas chamber 5 is heated up, the drive motor 401 is started, and the two synchronous pulleys 402 are rotated through the synchronous belt, so that the rotating rod 2 rotates, and the base 3 drives the four heat storage ceramics 11 to rotate counterclockwise. The heat storage ceramic 11 above the first gas chamber 5 rotates to below one of the spray plates 902. Then the cylinder 901 is started, and the cylinder 901 drives the spray plate 902 to move downward to closely adhere to the top of the heat storage ceramic 11, and flushes and cools the through groove 12 of the heat storage ceramic 11; at this time, the heat storage ceramic 11 located below the circulation pump rotates to above the first gas chamber 5 and is heated up again by exchanging heat with the gas. After two sprays, the cooled heat storage ceramic 11 rotates back to below the intake pipe 805 to achieve cyclic cooling.

[0038] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A temperature reduction device for the gas outlet of a regenerative combustion furnace, characterized in that: It includes a chassis (1), a rotating rod (2) is rotatably connected to the bottom of the chassis (1), a base (3) is rotatably connected above the rotating rod (2), a driving mechanism (4) for driving the rotating rod (2) to rotate is arranged on one side of the chassis (1), a heat exchange component is arranged above the base (3), a first gas chamber (⑤), a second gas chamber (⑥) and a water pool (⑦) are respectively fixed to the bottom of the inner cavity of the chassis (1), and a ventilation component (⑧) for introducing the gas to be cooled and a water spraying mechanism (⑨) for cooling the gas are respectively arranged on the top of the chassis (1); The heat exchange component includes a heat insulation plate (⑩) and heat storage ceramics (⑪), the heat storage ceramics (⑪) are fixedly connected to the inner wall of the heat insulation plate (⑩), and there are four heat storage ceramics (⑪).

2. The cooling device for the air outlet of a regenerative combustion furnace according to claim 1, wherein: The heat insulation plate (⑩) is arranged in a cross shape, the bottom end of the heat insulation plate (⑩) is fixedly connected to the base (3), the cross section of the heat storage ceramics (⑪) is in a fan shape, and a plurality of through grooves (⑫) for gas and water to pass through are arranged in the inner cavity of the heat storage ceramics (⑪).

3. The gas outlet temperature reduction device of a regenerative combustion furnace according to claim 2, characterized in that: The ventilation component (⑧) includes a circulation pipe (⑧01), a first air outlet pipe (⑧02) is communicated with one side of the first gas chamber (⑤), the first air outlet pipe (⑧02) is fixedly connected to one end of the circulation pipe (⑧01), and the other end of the circulation pipe (⑧01) penetrates through the top of the chassis (1) and is located above one of the heat storage ceramics (⑪).

4. The outlet temperature reduction device of a regenerative combustion furnace according to claim 3, characterized in that: The ventilation component (⑧) further includes a circulation air pump (⑧03), the circulation air pump (⑧03) is installed in the pipeline connecting the first air outlet pipe (⑧02) and the circulation pipe (⑧01), and one end of the second gas chamber (⑥) is communicated with a second air outlet pipe (⑧04).

5. The cooling device for the air outlet of the regenerative combustion furnace according to claim 4, characterized in that: The ventilation component (⑧) further includes an air inlet pipe (⑧05), one end of the air inlet pipe (⑧05) and the other end of the circulation pipe (⑧01) are both communicated with ventilation branch pipes (⑧06), there are a plurality of ventilation branch pipes (⑧06), and the air outlet ends of the plurality of ventilation branch pipes (⑧06) are all located above the heat storage ceramics (⑪).

6. The cooling device for the air outlet of the regenerative combustion furnace according to claim 1, wherein: The water spraying mechanism (⑨) includes a cylinder (⑨01) and a spraying plate (⑨02), the cylinder (⑨01) is fixedly connected to the chassis (1), the spraying plate (⑨02) is fixed to the telescopic end of the cylinder (⑨01), and a water inlet pipe (⑨03) is communicated with the top of the spraying plate (⑨02).

7. A temperature reduction device for the air outlet of a regenerative combustion furnace according to claim 6, characterized in that: There are two groups of the cylinder (⑨01), the spraying plate (⑨02) and the water inlet pipe (⑨03), and the two groups of spraying plates (⑨02) are respectively located above two groups of the heat storage ceramics (⑪).

8. The temperature reduction device for the air outlet of the regenerative combustion furnace according to claim 7, characterized in that: The driving mechanism (4) includes a driving motor (401), synchronous pulleys (402) are respectively fixed to the output end of the driving motor (401) and the outer wall of the rotating rod (2), and the two groups of synchronous pulleys (402) are connected by a synchronous belt.

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