RTO waste gas purification device

Abstract

The utility model discloses an RTO (Regenerative Thermal Oxidation) waste gas purification device, which belongs to the technical field of RTO waste gas purification and comprises a shell I, a shell II arranged in the middle of the interior of the shell I, a combustion oxidation chamber arranged at the upper end of the interior of the shell II, a heater arranged in the middle of the shell II, and heat accumulators arranged at the lower ends of the two sides of the shell II, the bottom of the second shell is connected with an air inlet pipe, the two sides of the second shell are provided with air outlet pipes, the upper ends of the air outlet pipes are connected with exhaust pipes, and switching valves are arranged between the air outlet pipes and the second shell and between the air inlet pipe and the second shell. The waste gas flows into the heating cylinder through the first connecting pipe, gas in the gas inlet pipe flows to take away heat of hot water in the heating cylinder, the gas in the gas inlet pipe is preheated, the water pump sucks the gas, the water is conveyed to the cooling cylinder through the second connecting pipe, the water in the cooling cylinder continuously absorbs heat, and recycling of the heat of the waste gas is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of RTO waste gas purification, and specifically relates to an RTO waste gas purification device. Background Art

[0002] In recent years, people have gradually realized the great harm of waste gas to the environment and human health. Therefore, the treatment of waste gas in the field of environmental engineering has received more and more attention. The main treatment technologies for unorganized waste gas at home and abroad are: thermal oxidation method, physical and chemical method, low-temperature plasma method, plant extract method, biological filtration method, etc.

[0003] Chinese patent application No. 202023236857.3 discloses an RTO exhaust gas purification device, including a shell, a heat accumulator is provided in the middle of the first shell and the second shell, a combustion oxidation chamber is provided on the top of the first shell and the second shell, the left bottom of the first shell is fixedly connected to the right side of the first switching valve through a first connecting pipe, the right bottom of the second shell is fixedly connected to the left side of the second switching valve through a second connecting pipe, and the middle top of the intake pipe is fixedly connected to a third connecting pipe, and the top of the third connecting pipe is fixedly connected to the bottom of the first switching valve. In the utility model, the bottom of the heat accumulator is respectively connected to the intake pipe and the exhaust pipe, and the heat of the high-temperature gas in the combustion chamber is stored through the valve alternating direction. The heat of the high-temperature gas in the combustion chamber will preheat the organic waste gas that is about to enter the combustion oxidation chamber, which has advantages in heat exchange efficiency over direct combustion and catalytic combustion, and is worthy of vigorous promotion.

[0004] The above-mentioned patent has the following problems when in use: when the exhaust gas is discharged, the temperature is high, causing environmental pollution, the waste heat of the exhaust gas cannot be utilized, resulting in waste, and at the same time, there is no filtering structure at the air inlet, and impurities in the exhaust gas are prone to cause blockage, affecting use. Utility Model Content

[0005] In order to solve the problems raised in the above background technology, the utility model provides an RTO waste gas purification device, which has the characteristics of utilizing waste heat of waste gas and filtering gas at the air inlet.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an RTO waste gas purification device, comprising a shell one, a shell two is arranged in the middle of the interior of the shell one, a combustion oxidation chamber is arranged at the upper end of the interior of the shell two, a heater is arranged in the middle of the shell two, heat accumulators are arranged at the lower ends of both sides of the shell two, an air inlet pipe is connected to the bottom of the shell two, an air outlet pipe is arranged on both sides of the shell two, an exhaust pipe is connected to the upper end of the air outlet pipe, switching valves are arranged between the air outlet pipe and the shell two and between the air inlet pipe and the shell two, a waste heat utilization component is arranged between the exhaust pipe and the air inlet pipe, and a filter component is arranged at the air inlet of the air inlet pipe.

[0007] Preferably, the waste heat utilization component includes connecting pipe one, a heating cylinder, connecting pipe two, a water pump, a transit cooling component, connecting pipe three and a cooling cylinder, wherein a heating cylinder is provided on the surface of the intake pipe, a cooling cylinder is provided on the surface of the exhaust pipe, connecting pipe one is provided between the water outlet of the cooling cylinder and the water inlet of the heating cylinder, the water outlet of the heating cylinder is connected to connecting pipe two, the other end of connecting pipe two is connected to the water pump, connecting pipe three is connected between the water outlet of the water pump and the water inlet of the cooling cylinder, and a transit cooling component is provided in the middle of connecting pipe three.

[0008] Preferably, the transfer cooling component includes a semiconductor refrigeration sheet and a cooling water tank, wherein the cooling water tank is connected to the middle of the connecting pipe three, and semiconductor refrigeration sheets are arranged around the surface of the cooling water tank.

[0009] Preferably, the filter assembly includes a cover plate, a filter plate, a slot, a vent, a side sealing door and a filter box, wherein vents are provided at both ends of the filter box, a plurality of slots are provided at the upper end of the filter box, a filter plate is inserted in the middle of the slot, a cover plate is provided at the upper end of the filter plate, and a side sealing door is provided on the side of the filter box.

[0010] Preferably, the side sealing door is connected to the filter box via a hinge, and a transparent observation window is provided on the surface of the side sealing door.

[0011] Preferably, a sealing ring is provided at the connection between the side of the filter plate and the slot, and the cover plate is connected to the filter box by magnetic adsorption.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model is provided with a waste heat utilization component, which is collected through a cooling cylinder. The water in the cooling cylinder absorbs heat and heats up, and flows into the heating cylinder through a connecting pipe 1. The gas flow in the intake pipe takes away the heat of the hot water in the heating cylinder, so that the gas in the intake pipe is preheated. The water pump sucks, and the water is sent to the cooling cylinder through a connecting pipe 2. The water in the cooling cylinder continues to absorb heat, so as to realize the recovery and reuse of waste gas heat;

[0014] 2. The utility model is provided with a filter assembly. The gas enters the filter box and is filtered through multiple groups of filter plates to filter out impurities in the gas. The situation inside the filter box can be observed through a transparent observation window. The side sealing door can be opened to clean the internal impurities, thereby ensuring stable gas filtration and avoiding blockage caused by the combustion of gas containing impurities. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 It is a cross-sectional view of the utility model;

[0017] Figure 3This is a schematic diagram of the structure of the waste heat utilization component of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the transfer cooling assembly of the utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the filter assembly of the utility model.

[0020] In the figure: 1. Shell 1; 2. Exhaust pipe; 3. Inlet pipe; 4. Filter assembly; 41. Cover plate; 42. Filter plate; 43. Slot; 44. Vent; 45. Side sealing door; 46. Transparent observation window; 47. Filter box; 5. Waste heat utilization assembly; 51. Connecting pipe 1; 52. Heating tube; 53. Connecting pipe 2; 54. Water pump; 55. Transfer cooling assembly; 551. Semiconductor refrigeration plate; 552. Cooling water tank; 56. Connecting pipe 3; 57. Cooling tube; 6. Combustion oxidation chamber; 7. Heat accumulator; 8. Heater; 9. Shell 2; 10. Switching valve; 11. Exhaust pipe. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example 1

[0023] See also Figure 1-5 The utility model provides the following technical solutions: an RTO waste gas purification device, comprising a shell 1, a shell 2 9 is arranged in the middle of the shell 1, a combustion oxidation chamber 6 is arranged at the upper end of the shell 2 9, a heater 8 is arranged in the middle of the shell 2 9, and heat accumulators 7 are arranged at the lower ends of both sides of the shell 2 9. The bottom of the shell 2 9 is connected to an air inlet pipe 3, and air outlet pipes 11 are arranged on both sides of the shell 2 9. The upper end of the air outlet pipe 11 is connected to the exhaust pipe 2, and switching valves 10 are arranged between the air outlet pipe 11 and the shell 2 9 and between the air inlet pipe 3 and the shell 2 9. A waste heat utilization component 5 is arranged between the exhaust pipe 2 and the air inlet pipe 3, and a filter component 4 is arranged at the air inlet of the air inlet pipe 3.

[0024] Specifically, the waste heat utilization component 5 includes a connecting pipe 1 51, a heating cylinder 52, a connecting pipe 2 53, a water pump 54, a transit cooling component 55, a connecting pipe 3 56 and a cooling cylinder 57, wherein a heating cylinder 52 is provided on the surface of the intake pipe 3, a cooling cylinder 57 is provided on the surface of the exhaust pipe 2, a connecting pipe 1 51 is provided between the water outlet of the cooling cylinder 57 and the water inlet of the heating cylinder 52, a connecting pipe 2 53 is connected to the water outlet of the heating cylinder 52, the other end of the connecting pipe 2 53 is connected to the water pump 54, a connecting pipe 3 56 is connected between the water outlet of the water pump 54 and the water inlet of the cooling cylinder 57, and a transit cooling component 55 is provided in the middle of the connecting pipe 3 56.

[0025] By adopting the above technical solution, the water is collected by the cooling cylinder 57, the water in the cooling cylinder 57 absorbs heat and rises in temperature, and flows into the heating cylinder 52 through the connecting pipe 1 51. The gas flow in the intake pipe 3 takes away the heat of the hot water in the heating cylinder 52, so that the gas in the intake pipe 3 is preheated. The water pump 54 sucks the water, and the water is sent to the cooling cylinder 57 through the connecting pipe 2 53. The water in the cooling cylinder 57 continues to absorb heat, thereby realizing the recovery and reuse of the waste gas heat.

[0026] Specifically, the transfer cooling component 55 includes a semiconductor cooling sheet 551 and a cooling water tank 552 , wherein the cooling water tank 552 is connected to the middle of the connecting pipe 3 56 , and the semiconductor cooling sheets 551 are arranged around the surface of the cooling water tank 552 .

[0027] By adopting the above technical solution, the semiconductor refrigeration sheet 551 performs cooling, thereby preventing the influence of excessively high water temperature on cooling the gas in the exhaust pipe 2 .

[0028] When the present embodiment is used, the gas is transported from the air inlet pipe 3 into the shell 2 9, and the waste gas enters the heat accumulator 7 for preheating. After the waste gas enters the heat accumulator 7, the waste gas temperature almost reaches the set temperature of the combustion oxidation chamber 6, and some pollutants are oxidized, and then introduced into the combustion oxidation chamber 6 for heating, and maintained at the set temperature to achieve a predetermined removal efficiency. The waste gas after combustion treatment is transported through the outlet pipe 11 and discharged from the exhaust pipe 2. The gas discharged from the exhaust pipe 2 carries heat and is collected by the cooling tube 57. The water in the cooling tube 57 absorbs heat and heats up. The gas flows into the heating tube 52 through the connecting tube 1 51. The gas flow in the air inlet pipe 3 takes away the heat of the hot water in the heating tube 52, so that the gas in the air inlet pipe 3 is preheated. The water pump 54 sucks, and the water is sent to the cooling tube 57 through the connecting tube 2 53. The water in the cooling tube 57 continues to absorb heat, so as to realize the recovery and reuse of waste gas heat, and the cooled gas is discharged from the exhaust pipe 2.

[0029] Example 2

[0030] The present embodiment is different from the embodiment 1 in that the filter assembly 4 includes a cover plate 41, a filter plate 42, a slot 43, a vent 44, a side sealing door 45 and a filter box 47, wherein vents 44 are provided at both ends of the filter box 47, a plurality of slots 43 are provided at the upper end of the filter box 47, a filter plate 42 is inserted in the middle of the slot 43, a cover plate 41 is provided at the upper end of the filter plate 42, and a side sealing door 45 is provided on the side of the filter box 47.

[0031] By adopting the above technical solution, the gas enters the filter box 47 and is filtered through multiple groups of filter plates 42 to filter impurities in the gas. The side sealing door 45 can be opened to clean the internal impurities, ensuring stable gas filtration and avoiding blockage caused by combustion of gas containing impurities.

[0032] Specifically, the side sealing door 45 is connected to the filter box 47 via a hinge, and a transparent observation window 46 is provided on the surface of the side sealing door 45 .

[0033] By adopting the above technical solution, the situation inside the filter box 47 can be observed through the transparent observation window 46, and the internal impurities can be cleaned by opening the side sealing door 45 to ensure stable gas filtration.

[0034] Specifically, a sealing ring is provided at the connection between the side of the filter plate 42 and the slot 43 , and the cover plate 41 is connected to the filter box 47 by magnetic adsorption.

[0035] By adopting the above technical solution, the connection between the side of the filter plate 42 and the slot 43 is sealed to avoid leakage.

[0036] When this embodiment is used, the gas enters the filter box 47 and is filtered through multiple groups of filter plates 42 to filter impurities in the gas. The situation inside the filter box 47 is observed through the transparent observation window 46, and the side sealing door 45 is opened to clean the internal impurities, thereby ensuring stable gas filtration and avoiding blockage caused by the combustion of gas containing impurities.

[0037] The structure and use principle of the combustion oxidation chamber 6, the heat accumulator 7, the heater 8 and the switching valve 10 in the utility model have been disclosed in an RTO exhaust gas purification device disclosed in Chinese patent application number 202023236857.3.

[0038] Working principle and use process of the utility model: When the utility model is used, the gas is transported from the air inlet pipe 3 into the shell 2 9, and the waste gas enters the heat accumulator 7 and is preheated. The waste gas temperature almost reaches the set temperature of the combustion oxidation chamber 6, and some pollutants are oxidized, and then introduced into the combustion oxidation chamber 6 to increase the temperature and maintain it at the set temperature to achieve a predetermined removal efficiency. The waste gas after combustion treatment is transported through the air outlet pipe 11 and discharged from the exhaust pipe 2. The gas discharged from the exhaust pipe 2 carries heat and is collected by the cooling tube 57. The water in the cooling tube 57 absorbs heat and increases in temperature. The waste gas flows through the connecting pipe 51. After entering the heating cylinder 52, the gas flow in the intake pipe 3 takes away the heat of the hot water in the heating cylinder 52, so that the gas in the intake pipe 3 is preheated, and the water pump 54 sucks, and the water is sent to the cooling cylinder 57 through the connecting pipe 53. The water in the cooling cylinder 57 continues to absorb heat, so that the heat of the exhaust gas is recovered and reused, and the cooled gas is discharged from the exhaust pipe 2; the gas enters the filter box 47, and is filtered through multiple groups of filter plates 42 to filter out impurities in the gas. The situation in the filter box 47 is observed through the transparent observation window 46, and the side sealing door 45 can be opened to clean the internal impurities to ensure the stability of gas filtration and avoid blockage caused by the combustion of gas containing impurities.

[0039] 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. An RTO waste gas purification device, comprising a shell (1), a shell (9) is arranged in the middle of the shell (1), a combustion oxidation chamber (6) is arranged at the upper end of the shell (9), a heater (8) is arranged in the middle of the shell (9), heat accumulators (7) are arranged at the lower ends of both sides of the shell (9), an air inlet pipe (3) is connected to the bottom of the shell (9), an air outlet pipe (11) is arranged on both sides of the shell (9), an exhaust pipe (2) is connected to the upper end of the air outlet pipe (11), and a switching valve (10) is arranged between the air outlet pipe (11) and the shell (9) and between the air inlet pipe (3) and the shell (9), characterized in that: A waste heat utilization component (5) is provided between the exhaust pipe (2) and the intake pipe (3), and a filter component (4) is provided at the air inlet of the intake pipe (3).

2. The RTO waste gas purification device according to claim 1, characterized in that: The waste heat utilization component (5) comprises a connecting pipe one (51), a heating cylinder (52), a connecting pipe two (53), a water pump (54), a transfer cooling component (55), a connecting pipe three (56) and a cooling cylinder (57), wherein a heating cylinder (52) is arranged on the surface of the air inlet pipe (3), a cooling cylinder (57) is arranged on the surface of the exhaust pipe (2), a connecting pipe one (51) is arranged between the water outlet of the cooling cylinder (57) and the water inlet of the heating cylinder (52), the water outlet of the heating cylinder (52) is connected to a connecting pipe two (53), the other end of the connecting pipe two (53) is connected to a water pump (54), a connecting pipe three (56) is connected between the water outlet of the water pump (54) and the water inlet of the cooling cylinder (57), and a transfer cooling component (55) is arranged in the middle of the connecting pipe three (56).

3. The RTO waste gas purification device according to claim 2, characterized in that: The transfer cooling component (55) comprises a semiconductor cooling sheet (551) and a cooling water tank (552), wherein the cooling water tank (552) is connected in the middle of the connecting pipe (56), and semiconductor cooling sheets (551) are arranged around the surface of the cooling water tank (552).

4. The RTO waste gas purification device according to claim 1, characterized in that: The filter assembly (4) comprises a cover plate (41), a filter plate (42), a slot (43), a vent (44), a side sealing door (45) and a filter box (47), wherein the vents (44) are arranged at both ends of the filter box (47), a plurality of slots (43) are arranged at the upper end of the filter box (47), the filter plate (42) is inserted in the middle of the slot (43), the cover plate (41) is arranged at the upper end of the filter plate (42), and the side of the filter box (47) is arranged with a side sealing door (45).

5. The RTO waste gas purification device according to claim 4, characterized in that: The side sealing door (45) is connected to the filter box (47) via a hinge, and a transparent observation window (46) is provided on the surface of the side sealing door (45).

6. The RTO waste gas purification device according to claim 4, characterized in that: A sealing ring is provided at the connection between the side of the filter plate (42) and the slot (43), and the cover plate (41) is connected to the filter box (47) by magnetic adsorption.

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