An exhaust gas purification combustion device

Abstract

The utility model discloses a kind of waste gas purification combustion devices, comprising: air inlet base, combustion chamber is fixedly installed at its top end, the outer wall of the combustion chamber is fixedly sleeved with temperature insulation protective sleeve, and the inner wall of the combustion chamber is equidistantly provided with multiple heat-collecting spiral grooves, maintain the temperature inside combustion chamber, improve waste gas combustion effect.The utility model is through the flame of spiral distribution and the flame of the flame projector towards central axis, form high-temperature vortex area, force waste gas to flow to high-temperature area, ensure sufficient combustion;Fuel spiral pipe covers combustion chamber inner wall, eliminates combustion dead angle, cooperate heat-collecting spiral groove to maintain chamber temperature, improve combustion efficiency;Temperature insulation protective sleeve covers combustion chamber and exhaust pipe, reduce heat loss, maintain high-temperature environment, strengthen waste gas decomposition effect;Spiral air guide pipe penetrates circulating water tank, when high-temperature waste gas passes, quickly transfer heat to water flow, reduce waste gas temperature, avoid waste gas high temperature influence gas filter.

Description

Technical Field

[0001] This utility model relates to the field of waste gas purification technology, and in particular to a waste gas purification combustion device. Background Technology

[0002] In existing technologies, waste gas purification mainly refers to the treatment of industrial waste gases generated in industrial sites, such as particulate matter, flue gas, odorous gases, and toxic and harmful gases. Common waste gas purification methods include factory flue gas purification, workshop dust gas purification, organic waste gas purification, odor removal, acid and alkali waste gas purification, and chemical waste gas purification. Combustion is a method that uses thermal oxidation to convert combustible and harmful components in waste gases into harmless substances or substances that are easily further treated and recycled.

[0003] A search revealed Chinese patent application number 202420941248.7, which discloses a waste gas purification combustion device. By controlling a drive motor, the output of the motor rotates a gear, which in turn moves a geared track plate. This gear moves a limiting plate, which in turn moves two sealing gaskets. The geared track plate opens one channel created by a partition plate while simultaneously closing another, allowing only one channel to be used at a time. This facilitates filter plate replacement and continuous operation. While this device uses combustion to purify waste gas, the heat generated during combustion is dissipated, leading to heat waste. Furthermore, directly purifying the waste gas after combustion can negatively impact the filter plates due to the heat, affecting their lifespan. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a waste gas purification and combustion device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A waste gas purification and combustion device, comprising:

[0007] An air intake base has a combustion chamber fixedly installed at its top. The outer wall of the combustion chamber is fixedly fitted with a heat-insulating protective sleeve, and the inner wall of the combustion chamber is provided with multiple heat-gathering spiral grooves at equal intervals to maintain the temperature inside the combustion chamber and improve the exhaust gas combustion effect.

[0008] A gas delivery ring pipe is fitted onto the bottom of the outer wall of the combustion chamber, and multiple diversion pipe heads inserted into the combustion chamber are welded at equal intervals on the inner wall of the gas delivery ring pipe. A fuel spiral pipe is fixedly installed at the top of the diversion pipe head, and multiple flamethrowers are installed at equal intervals on the outer wall of the fuel spiral pipe on the side close to the axis of the combustion chamber.

[0009] A circulating water tank has a spiral air guide pipe fixedly installed inside it. The top end of the spiral air guide pipe is connected to the air outlet of the combustion chamber, and a scrubbing box is installed at the air outlet of the spiral air guide pipe. A multi-head water sprayer supplied with water from the circulating water tank is fixedly installed at the top end of the scrubbing box, and a heat dissipation circulating water tank that supplies water to the circulating water tank is fixedly installed at the bottom end of the scrubbing box.

[0010] As a further embodiment of this utility model: an exhaust duct covered by a heat-insulating protective sleeve is fixedly installed at the top of the combustion chamber, and a connecting duct is fixedly installed at the top of the exhaust duct.

[0011] As a further embodiment of this utility model: a connecting pipe head is fixedly installed at one end of the connecting conduit, the bottom end of the connecting pipe head is fixedly installed at the top end of the spiral air guide pipe, and a water tank support base is fixedly installed at the bottom end of the circulating water tank.

[0012] As a further embodiment of this utility model: a water outlet head is fixedly installed on the top side of the circulating water tank, a water outlet conduit is fixedly installed at the end of the water outlet head, and one end of the water outlet conduit is fixedly installed on the top of the multi-head water sprayer.

[0013] As a further embodiment of this utility model: an inlet pipe head is fixedly installed on the bottom of the same side of the circulating water tank, a control valve is fixedly installed at the end of the inlet pipe head, and an inlet conduit is fixedly installed at the end of the control valve.

[0014] As a further embodiment of this utility model: a water pump is fixedly installed at one end of the water inlet pipe, and the water pump is fixedly installed at the top of the heat dissipation circulation water tank.

[0015] As a further improvement of this utility model: an exhaust pipe is fixedly installed at the tail end of the air washing box, and a gas filter is fixedly installed at the tail end of the exhaust pipe.

[0016] As a further improvement of this utility model: the top of the air intake base is provided with a connecting guide groove, the bottom inner wall of the connecting guide groove is provided with an air intake guide groove, and an exhaust gas duct connected to the air intake guide groove is welded to the middle of the outer wall of one side of the air intake base.

[0017] Compared with the prior art, the present invention provides a waste gas purification and combustion device, which has the following beneficial effects:

[0018] 1. This exhaust gas purification and combustion device uses a spirally distributed burner with the flame pointing towards the central axis to create a high-temperature vortex zone, forcing the exhaust gas to flow towards the high-temperature area to ensure complete combustion; the fuel spiral tube covers the inner wall of the combustion chamber to eliminate combustion dead zones, and works with the heat-concentrating spiral groove to maintain the chamber temperature and improve combustion efficiency; the heat-insulating protective sleeve covers the combustion chamber and exhaust pipe to reduce heat loss, maintain a high-temperature environment, and enhance the decomposition effect of exhaust gas; the spiral air guide pipe runs through the circulating water tank, and when the high-temperature exhaust gas passes through, it quickly transfers heat to the water flow, reduces the exhaust gas temperature, and prevents the high temperature of the exhaust gas from affecting the gas filter.

[0019] 2. This exhaust gas purification and combustion device stabilizes the internal temperature of the combustion chamber through the heat-gathering spiral groove, reducing fuel consumption; the heat insulation jacket further reduces heat loss and improves the energy efficiency ratio; the multi-head water sprayer sprays hot water into the gas washing box in a cone-shaped water mist, covering the entire exhaust gas passage and efficiently adsorbing combustion dust; the water pump draws filtered clean water to replenish the circulating water tank, forming a closed-loop water circulation and reducing water waste.

[0020] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description

[0021] Figure 1 Schematic diagram of the three-dimensional structure of the overall assembly of this utility model Figure 1 ;

[0022] Figure 2 Schematic diagram of the three-dimensional structure of the overall assembly of this utility model Figure 2 ;

[0023] Figure 3 This is a partial cross-sectional view of the overall assembly of this utility model.

[0024] Figure 4 This utility model Figure 3 A magnified schematic diagram of the structure at point A in the middle.

[0025] In the diagram: 1. Intake base; 2. Exhaust gas duct; 3. Combustion chamber; 4. Gas delivery ring pipe; 5. Fuel injection pipe; 6. Thermal insulation sleeve; 7. Exhaust duct; 8. Connecting duct; 9. Connecting pipe head; 10. Circulating water tank; 11. Water outlet pipe head; 12. Water outlet duct; 13. Water inlet pipe head; 14. Control valve; 15. Water inlet duct; 16. Multi-head water sprayer; 17. Water pump; 18. Cooling circulating water tank; 19. Air washing box; 20. Exhaust gas duct; 21. Gas filter; 22. Water tank support; 23. Spiral air guide pipe; 24. Filter screen; 25. Diverter pipe head; 26. Fuel spiral pipe; 27. Flamethrower; 28. Heat-gathering spiral groove; 29. ​​Connecting guide groove; 30. Intake guide groove; 31. Mounting base; 32. Control panel. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] A waste gas purification and combustion device, such as Figures 1 to 4 As shown, it includes: a combustion chamber 3 fixedly installed on the top of the intake base 1, a heat exchange structure consisting of a circulating water tank 10 and a spiral air guide pipe 23, and a scrubbing box 19 that uses circulating hot water for scrubbing.

[0028] The air intake base 1 includes a frustum-shaped base for supporting the overall device and a cylinder for introducing exhaust gas. The top of the cylinder is provided with an inverted frustum-shaped connecting guide groove 29, and the bottom inner wall of the connecting guide groove 29 is provided with an air intake guide groove 30. An exhaust gas duct 2 connected to the air intake guide groove 30 is welded to the middle of the outer wall of one side of the air intake base 1. The exhaust gas duct 2 is used to introduce a mixture of exhaust gas and air.

[0029] The bottom wall of the air intake guide groove 30 is integrally formed with a mounting base 31. The top of the mounting base 31 is fixedly installed with a control guide 32. A gap for introducing exhaust gas is provided between the side wall of the control guide 32 and the side wall of the connecting guide groove 29, so that the exhaust gas can approach the inner wall of the combustion chamber 3 and be fully combusted.

[0030] An exhaust duct 7 is fixedly installed at the top of the combustion chamber 3, and multiple heat-gathering spiral grooves 28 are equidistantly opened on the inner wall of the combustion chamber 3 to maintain the temperature inside the combustion chamber 3 and improve the combustion effect of exhaust gas. A heat-insulating protective sleeve 6 is fixedly fitted on the outer wall of the combustion chamber 3. The heat-insulating protective sleeve 6 covers the outer wall of the exhaust duct 7, prolonging the heat preservation time inside the combustion chamber 3, so that the exhaust gas can be burned more completely.

[0031] A gas supply ring pipe 4 is sleeved at the bottom of the outer wall of the combustion chamber 3. Multiple diversion pipe heads 25 inserted into the combustion chamber 3 are welded at equal intervals on the inner wall of the gas supply ring pipe 4. A fuel spiral pipe 26 is fixedly installed at the top of the diversion pipe head 25. Multiple flamethrowers 27 are installed at equal intervals on the outer wall of the fuel spiral pipe 26 on the side close to the axis of the combustion chamber 3.

[0032] The fuel spiral tube 26, together with multiple burners 27, ensures the combustion effect of the exhaust gas. The multiple fuel spiral tubes 26 ensure that there are no dead corners in the combustion chamber 3. At the same time, the spray direction of the multiple burners 27 is close to the axis of the combustion chamber 3, which makes the temperature at the axis of the combustion chamber 3 rise rapidly. Combined with the airflow generated by the burners 27, the exhaust gas quickly approaches the high-temperature area, ensuring the combustion effect of the exhaust gas.

[0033] The burner 27 uses an electric arc igniter to ignite gas combustion. The electric arc igniter is located at the bottom of one of the fuel spiral tubes 26 to reduce the influence of the internal temperature of the combustion chamber 3 on the electric arc igniter (for example, refer to the electric arc igniter used in existing household integrated stoves, where only the arc generating end is inside the combustion chamber 3). It directly ignites only the burner 27 closest to the electric arc igniter, and other burners 27 are ignited by the burner 27 that is ignited first. The top of the gas supply ring pipe 4 has an integrally formed fuel injection pipe 5 to facilitate continuous injection of gaseous combustion, such as natural gas.

[0034] An inverted U-shaped connecting pipe 8 is fixedly installed at the top of the exhaust pipe 7. A connecting pipe head 9 is fixedly installed at the bottom of the other end of the connecting pipe 8. A circulating water tank 10 is provided at the bottom of the connecting pipe head 9. A spiral air guide pipe 23 is fixedly installed inside the circulating water tank 10. The diameter of the spiral air guide pipe 23 is smaller than the diameter of the connecting pipe head 9. After the high-temperature and high-pressure exhaust gas after combustion enters the spiral air guide pipe 23, it flows rapidly.

[0035] The bottom end of the connecting pipe head 9 is welded with an installation pipe head 1. The top end of the spiral air guide pipe 23 passes through the circulating water tank 10 and is fixedly connected to the installation pipe head 1. The bottom end of the spiral air guide pipe 23 passes through the circulating water tank 10 and extends to one side. A water tank support base 22 is fixedly installed at the bottom end of the circulating water tank 10.

[0036] A water outlet head 11 is fixedly installed on the top side of the circulating water tank 10. A water outlet conduit 12 is fixedly installed at the end of the water outlet head 11. A multi-head water sprayer 16 is fixedly installed at the bottom of the water outlet conduit 12. The multi-head water sprayer 16 sprays the hot water flowing out of the circulating water tank 10. The spray is in a cone shape and can cover the exhaust gas flow channel.

[0037] A water inlet pipe head 13 is fixedly installed on the bottom of the same side of the circulating water tank 10. A control valve 14 is fixedly installed at the end of the water inlet pipe head 13. A water inlet conduit 15 is fixedly installed at the end of the control valve 14. A water pump 17 is fixedly installed at the bottom of the water inlet conduit 15. The water inside the circulating water tank 10 absorbs the heat of the high-temperature and high-pressure exhaust gas after combustion through the spiral air guide pipe 23, thereby reducing the temperature of the exhaust gas after combustion.

[0038] The outlet of the spiral air guide pipe 23 is equipped with a gas washing box 19. A second mounting pipe head is fixedly connected to one side of the gas washing box 19. The second mounting pipe head is fixed to the bottom end of the spiral air guide pipe 23. A multi-head water sprayer 16 is fixedly installed at the top of the gas washing box 19. The water mist sprayed by the multi-head water sprayer 16 washes the exhaust gas after combustion, removes the combustion dust carried in the exhaust gas after combustion, and facilitates subsequent treatment.

[0039] On the other side of the gas washing box 19, an installation pipe head three is fixedly installed. An outlet pipe 20 is fixedly installed at the end of the installation pipe head three. A gas filter 21 is fixedly installed at the end of the outlet pipe 20. The gas filter 21 fully filters the cleaned combustion exhaust gas and removes harmful substances remaining in the exhaust gas.

[0040] The bottom of the air washing box 19 is fixedly installed with a heat dissipation circulation water tank 18 that supplies water to the circulating water tank 10. The bottom of the air washing box 19 has an integrally formed insert, which is inserted into the top of the heat dissipation circulation water tank 18 to facilitate the flow of cleaning water into the heat dissipation circulation water tank 18 and dissipate heat from the cleaning water. The heat dissipation method can be selected from heat dissipation fins, cooler cooling, cooling fan, etc.

[0041] A filter screen 24 is fixedly installed in the middle of the inner cavity of the heat dissipation circulating water tank 18. The filter screen 24 filters the incoming cleaning water flow, so that the washed dust is concentrated and collected and treated at regular intervals. The water pump 17 is fixedly installed at the top of the heat dissipation circulating water tank 18, and a water pump pipe is fixedly installed at its bottom end. The water pump pipe is inserted into the heat dissipation circulating water tank 18 to draw out the clean water filtered by the filter screen 24 and refill it into the circulating water tank 10.

[0042] Working principle:

[0043] Reference Figures 1 to 4 Assemble the device as shown in the figure;

[0044] When using this device, firstly, the water pump 17 is started and the control valve 14 is opened. The water pump 17 draws water from the cooling circulation tank 18 and replenishes the circulating water tank 10. The replenished water compresses the water flow at the top, causing it to flow through the outlet pipe 12 into the multi-head sprayer 16. The multi-head sprayer 16 sprays the water into the air washing tank 19, and then concentrates it into the cooling circulation tank 18. After being filtered by the filter screen 24, it is then drawn away by the water pump 17. Next, the external fuel supply device is started, and fuel is continuously supplied to the air delivery ring pipe 4 through the fuel injection pipe 5. The fuel is distributed to multiple fuel screws. Inside the spiral tube 26, the fuel is sprayed out by the flamethrower 27, and then the electric arc igniter is activated to ignite the fuel and preheat the combustion chamber 3. Finally, the mixture of exhaust gas and air is introduced through the exhaust gas duct 2. The mixture enters the combustion chamber 3 and is burned by the high-temperature flame. The high-temperature and high-pressure exhaust gas after combustion enters the exhaust duct 7, and then enters the spiral air guide tube 23 through the connecting duct 8 and the connecting pipe head 9. The heat is absorbed by the water flow inside the circulating water tank 10 to reduce the temperature. Then it enters the air washing tank 19, where the solid waste after combustion is washed by the water flow sprayed by the multi-head water sprayer 16. After being filtered by the gas filter 21, it is discharged.

[0045] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A waste gas purification and combustion device, characterized in that, include: An air intake base (1) is fixedly installed with a combustion chamber (3) at its top. The outer wall of the combustion chamber (3) is fixedly fitted with a heat insulation protective sleeve (6), and the inner wall of the combustion chamber (3) is provided with multiple heat-gathering spiral grooves (28) at equal intervals to maintain the temperature inside the combustion chamber (3) and improve the exhaust gas combustion effect. Gas delivery ring pipe (4) is sleeved at the bottom of the outer wall of combustion chamber (3), and multiple diversion pipe heads (25) inserted into the combustion chamber (3) are welded at equal intervals on the inner wall of gas delivery ring pipe (4). A fuel spiral pipe (26) is fixedly installed at the top of the diversion pipe head (25), and multiple flamethrowers (27) are installed at equal intervals on the outer wall of the fuel spiral pipe (26) on the side close to the axis of combustion chamber (3). A circulating water tank (10) has a spiral air guide pipe (23) fixedly installed inside it. The top end of the spiral air guide pipe (23) is connected to the air outlet of the combustion chamber (3). A scrubbing box (19) is installed at the air outlet of the spiral air guide pipe (23). A multi-head water sprayer (16) supplied with water from the circulating water tank (10) is fixedly installed at the top end of the scrubbing box (19). A heat dissipation circulating water tank (18) that supplies water to the circulating water tank (10) is fixedly installed at the bottom end of the scrubbing box (19).

2. The waste gas purification and combustion device according to claim 1, characterized in that: An exhaust duct (7) covered by a heat-insulating protective sleeve (6) is fixedly installed at the top of the combustion chamber (3), and a connecting duct (8) is fixedly installed at the top of the exhaust duct (7).

3. The waste gas purification and combustion device according to claim 2, characterized in that: One end of the connecting conduit (8) is fixedly installed with a connecting pipe head (9), the bottom end of the connecting pipe head (9) is fixedly installed at the top end of the spiral air guide pipe (23), and the bottom end of the circulating water tank (10) is fixedly installed with a water tank support base (22).

4. The waste gas purification and combustion device according to claim 1, characterized in that: A water outlet head (11) is fixedly installed on the top of one side of the circulating water tank (10), and a water outlet conduit (12) is fixedly installed at the end of the water outlet head (11). One end of the water outlet conduit (12) is fixedly installed at the top of the multi-head water sprayer (16).

5. The waste gas purification and combustion device according to claim 1, characterized in that: A water inlet pipe head (13) is fixedly installed on the bottom of the same side of the circulating water tank (10), and a control valve (14) is fixedly installed at the end of the water inlet pipe head (13), and a water inlet conduit (15) is fixedly installed at the end of the control valve (14).

6. The waste gas purification and combustion device according to claim 5, characterized in that: A water pump (17) is fixedly installed at one end of the water inlet pipe (15), and the water pump (17) is fixedly installed at the top of the heat dissipation circulating water tank (18).

7. The waste gas purification and combustion device according to claim 1, characterized in that: An exhaust pipe (20) is fixedly installed at the tail end of the air washing box (19), and a gas filter (21) is fixedly installed at the tail end of the exhaust pipe (20).

8. The waste gas purification and combustion device according to claim 1, characterized in that: The top of the air intake base (1) is provided with a connecting guide groove (29), the bottom inner wall of the connecting guide groove (29) is provided with an air intake guide groove (30), and an exhaust gas duct (2) connected to the air intake guide groove (30) is welded to the middle of the outer wall of one side of the air intake base (1).

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