Flue gas waste heat utilization device of garbage incinerator

Abstract

The utility model relates to the technical field of garbage incinerators, in particular to a flue gas waste heat utilization device of a garbage incinerator, which comprises an incinerator body, a water tank is fixedly connected to the outer wall of one side of the incinerator body, and heat preservation cotton is arranged on the inner wall of the water tank. The waste heat utilization mechanism is arranged in the water tank; the waste heat utilization mechanism comprises a spiral pipe fixedly connected to the inner wall of the water tank, a ventilation pipe is fixedly connected to the outer wall of the bottom of the spiral pipe, a flow dividing pipe is fixedly connected to the inner wall of the bottom of the water tank and communicates with the ventilation pipe, and a plurality of air outlet holes are formed in the outer wall of the top end of the flow dividing pipe. According to the flue gas waste heat utilization device for the garbage incinerator, a flue gas flowing path is longer, the flue gas is in uniform contact with a water source to ensure waste heat absorption, the flue gas rises to the top from the bottom of the water source to drive the water source to flow, the water source is uniformly heated, the flue gas can be filtered by the water source, and the use efficiency of the flue gas waste heat utilization device for the garbage incinerator is improved.

Description

Technical Field

[0001] This utility model relates to the field of waste incinerator technology, specifically a waste incinerator flue gas waste heat utilization device. Background Technology

[0002] When an incinerator burns, the flue gas contains a large amount of heat energy. This heat energy is directly emitted along with the flue gas and cannot be recovered or utilized, resulting in a waste of resources. Furthermore, the directly emitted flue gas contains harmful gases that pollute the environment.

[0003] A search of Chinese patent CN217635666U reveals an RTO incinerator utilizing flue gas waste heat recovery. This incinerator employs a structure where a heat sink and a connecting trough are integrally formed and connected by a connecting pipe. Flue gas enters the heat sink through the inlet pipe, and the temperature of the flue gas heats the water in the tank. A booster pump then delivers the heated water through the outlet pipe, thus providing heating and enabling the collection and utilization of heat from the flue gas, preventing resource waste.

[0004] Based on the above search and existing technology, it was found that the above patent has certain defects. It is difficult for the flue gas to come into uniform contact with the water source in the water tank. The waste heat absorption effect of the flue gas is poor. The water source in the water tank remains stable and still, and cannot be heated evenly. The water source near the pipe has a higher temperature. In addition, the water source in the water tank cannot filter the flue gas, resulting in poor overall filtration effect and reducing the utilization efficiency of the waste heat utilization device for flue gas incinerator. Utility Model Content

[0005] The purpose of this invention is to provide a waste heat recovery device for flue gas from a waste incinerator to solve the problems mentioned in the background art.

[0006] The technical solution of this utility model is: a waste gas waste heat utilization device for a waste incinerator, including an incinerator body, a water tank fixedly connected to one side outer wall of the incinerator body, and heat insulation cotton provided on the inner wall of the water tank, and also including;

[0007] Waste heat utilization mechanism, wherein the waste heat utilization mechanism is disposed inside the water tank;

[0008] The waste heat utilization mechanism includes a spiral tube fixedly connected to the inner wall of the water tank. A ventilation pipe is fixedly connected to the bottom outer wall of the spiral tube. A diversion pipe is fixedly connected to the bottom inner wall of the water tank. The diversion pipe is connected to the ventilation pipe. Several air outlets are opened on the top outer wall of the diversion pipe. Air jet pipes are inserted into the inner wall of the air outlets. A fan is installed on the top outer wall of the incinerator body. An exhaust pipe is provided on the top outer wall of the incinerator body. The exhaust pipe is connected to the fan. An air inlet pipe is inserted into the output end of the fan. The air inlet pipe is connected to the spiral tube. A filter screen is fixedly connected to the bottom outer wall of the diversion pipe. The filter screen is fixedly connected to the inner wall of the water tank.

[0009] Preferably, a booster pump is installed on one inner wall of the bottom of the water tank, and the output end of the booster pump is connected to a water outlet pipe. The booster pump is located below the filter screen.

[0010] Preferably, an inlet pipe is provided on one side of the outer wall of the top of the water tank, a one-way valve is installed on the inner wall of the diversion pipe, and the jet pipes are distributed in a ring array.

[0011] Preferably, a plurality of vent holes are provided on one side of the outer wall of the top of the water tank, and a purifier is installed on one side of the outer wall of the top of the water tank. The input end of the purifier is connected to an exhaust pipe, which is inserted into the inner wall of the vent hole.

[0012] Preferably, a fixing rod is fixedly connected to the outer wall of the top end of the diversion pipe, and a plurality of guide rods are fixedly connected to the outer wall of the fixing rod, the guide rods being distributed in a linear array.

[0013] This utility model provides an improved waste gas waste heat recovery device for a waste incinerator, which has the following improvements and advantages compared with the prior art:

[0014] Firstly, this utility model, by incorporating an incinerator body, water tank, fan, spiral tube, diversion pipe, and jet pipe, increases the flue gas flow path. The flue gas fully contacts the water source in the water tank along the spiral tube, allowing the water source to absorb the heat from the flue gas. The flue gas then enters the diversion pipe through the bottom ventilation pipe and is finally sprayed into the water source through the annular array of jet pipes. The flue gas rises inside the water tank, effectively removing some particulate matter and soluble pollutants. Finally, the flue gas enters the purifier and is purified to meet emission standards before being discharged. The rising flue gas drives the water source to flow, resulting in a more even distribution of heat absorbed by the water source. The longer flue gas flow path ensures uniform contact with the water source, guaranteeing the absorption of residual heat. Furthermore, the flue gas rises from the bottom to the top of the water source, driving the water source to flow and ensuring even heating. The water source can also filter the flue gas, improving the efficiency of the waste incinerator flue gas waste heat utilization device.

[0015] Secondly, this utility model, by setting up a diversion pipe, a fixing rod, and a guide rod, with the fixing rod and guide rod set at the top of the diversion pipe, guides the flue gas ejected from the jet pipe, further optimizing the flow of water source to assist in the absorption of flue gas waste heat, thus improving the practicality of the waste gas waste heat utilization device for waste incinerators. Attached Figure Description

[0016] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 This is a schematic cross-sectional view of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the spiral tube of this utility model;

[0019] Figure 3 This is a schematic diagram of the diversion tube of this utility model;

[0020] Figure 4 This is a schematic diagram of the guide rod of this utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Incinerator body; 2. Water tank; 3. Insulation cotton; 4. Fan; 5. Air inlet pipe; 6. Spiral pipe; 7. Purifier; 8. Water inlet pipe; 9. Booster pump; 10. Water outlet pipe; 11. Filter screen; 12. Diverter pipe; 13. Fixing rod; 14. Ventilation pipe; 15. Jet pipe; 16. Guide rod. Detailed Implementation

[0023] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0024] This utility model provides an improved waste gas waste heat recovery device for a waste incinerator. The technical solution of this utility model is as follows:

[0025] like Figures 1-4 As shown, a waste incinerator flue gas waste heat utilization device includes an incinerator body 1, a water tank 2 fixedly connected to one side outer wall of the incinerator body 1, and a heat insulation cotton 3 provided on the inner wall of the water tank 2, and also includes;

[0026] Waste heat utilization mechanism, which is installed inside water tank 2;

[0027] The waste heat utilization mechanism includes a spiral tube 6 fixedly connected to the inner wall of the water tank 2. A ventilation pipe 14 is fixedly connected to the bottom outer wall of the spiral tube 6. A diversion pipe 12 is fixedly connected to the bottom inner wall of the water tank 2. The diversion pipe 12 is connected to the ventilation pipe 14. Several air outlets are opened on the top outer wall of the diversion pipe 12. A jet pipe 15 is inserted into the inner wall of the air outlet. A fan 4 is installed on the top outer wall of the incinerator body 1. An exhaust pipe is provided on the top outer wall of the incinerator body 1. The exhaust pipe is connected to the fan 4. An air inlet pipe 5 is inserted into the output end of the fan 4. The air inlet pipe 5 is connected to the spiral tube 6. A filter screen 11 is fixedly connected to the bottom outer wall of the diversion pipe 12. The filter screen 11 is fixedly connected to the inner wall of the water tank 2.

[0028] Furthermore, a booster pump 9 is installed on one inner wall of the bottom of the water tank 2, and the output end of the booster pump 9 is connected to the water outlet pipe 10. The booster pump 9 is located below the filter screen 11. A water inlet pipe 8 is provided on one outer wall of the top of the water tank 2. A one-way valve is installed on the inner wall of the diversion pipe 12. The jet pipes 15 are distributed in a ring array.

[0029] Furthermore, several vent holes are provided on one side of the outer wall at the top of the water tank 2. A purifier 7 is installed on one side of the outer wall at the top of the water tank 2. An exhaust pipe is inserted into the input end of the purifier 7 and inserted into the inner wall of the exhaust hole. A fixing rod 13 is fixedly connected to the outer wall at the top of the diversion pipe 12. Several guide rods 16 are fixedly connected to the outer wall of the fixing rod 13. The guide rods 16 are arranged in a straight array. The fixing rod 13 and guide rods 16 are set at the top of the diversion pipe 12 to guide the flue gas ejected from the jet pipe 15, further optimizing the flow of water and assisting in the absorption of waste heat from the flue gas.

[0030] Working principle: During the recovery of waste heat from the incinerator flue gas, the flue gas generated by the incinerator body 1 enters the spiral tube 6 of the water tank 2 through the fan 4 and the air inlet pipe 5. It descends along the spiral tube 6 to the bottom of the water tank 2, increasing the flue gas flow path. Along the spiral tube 6, it fully contacts the water source in the water tank 2, and the heat of the flue gas is absorbed by the water source. The flue gas then enters the diversion pipe 12 through the bottom ventilation pipe 14, and finally is sprayed into the water source through the annular array of jet pipes 15. The flue gas rises inside the water tank 2, effectively removing some particulate matter and soluble pollutants from the flue gas. Finally, the flue gas enters the purification system. The purified flue gas inside the device 7 is discharged in accordance with emission standards. The rising flue gas can drive the water source to flow, thereby making the heat absorbed by the water source more evenly distributed. The insulation cotton 3 installed on the outside of the water tank 2 maintains the temperature and slows down the heat loss. The filter screen 11 installed at the bottom of the water tank 2 filters impurities. The booster pump 9 works with the water outlet pipe 10 to output the heated water. The heating water source meets the heating needs. The fixed rod 13 and the guide rod 16 are installed on the top of the diversion pipe 12 to guide the flue gas ejected from the jet pipe 15, further optimizing the flow of the water source and assisting in the absorption of waste heat from the flue gas.

[0031] The technical means disclosed in this utility model are not limited to those described above, but also include technical solutions composed of equivalent substitutions of the above technical features. Matters not covered in this utility model are common knowledge to those skilled in the art.

Claims

1. A waste gas waste heat utilization device for a waste incinerator, comprising an incinerator body (1), wherein a water tank (2) is fixedly connected to one outer wall of the incinerator body (1), and the inner wall of the water tank (2) is provided with heat insulation cotton (3), characterized in that: Also includes; Waste heat utilization mechanism, wherein the waste heat utilization mechanism is disposed inside the water tank (2); The waste heat utilization mechanism includes a spiral tube (6) fixedly connected to the inner wall of the water tank (2). A ventilation pipe (14) is fixedly connected to the bottom outer wall of the spiral tube (6). A diversion pipe (12) is fixedly connected to the bottom inner wall of the water tank (2). The diversion pipe (12) is connected to the ventilation pipe (14). Several air outlets are opened on the top outer wall of the diversion pipe (12). A jet pipe (15) is inserted into the inner wall of the air outlet. A fan (4) is installed on the top outer wall of the incinerator body (1). An exhaust pipe is provided on the top outer wall of the incinerator body (1). The exhaust pipe is connected to the fan (4). An air inlet pipe (5) is inserted into the output end of the fan (4). The air inlet pipe (5) is connected to the spiral tube (6). A filter screen (11) is fixedly connected to the bottom outer wall of the diversion pipe (12). The filter screen (11) is fixedly connected to the inner wall of the water tank (2).

2. The waste gas waste heat utilization device for a waste incinerator according to claim 1, characterized in that: A booster pump (9) is installed on one side of the inner wall of the bottom of the water tank (2). The output end of the booster pump (9) is connected to a water outlet pipe (10). The booster pump (9) is located below the filter screen (11).

3. The waste gas waste heat utilization device for a waste incinerator according to claim 1, characterized in that: The water tank (2) has an inlet pipe (8) on one side of its top outer wall, a one-way valve is installed on the inner wall of the diversion pipe (12), and the jet pipes (15) are arranged in a ring array.

4. The waste gas waste heat utilization device for a waste incinerator according to claim 1, characterized in that: The water tank (2) has several vent holes on one side of its top outer wall. A purifier (7) is installed on one side of the top outer wall of the water tank (2). The purifier (7) has an exhaust pipe inserted into its input end and the exhaust pipe is inserted into the inner wall of the exhaust hole.

5. The waste gas waste heat utilization device for a waste incinerator according to claim 1, characterized in that: A fixing rod (13) is fixedly connected to the outer wall of the top end of the diversion pipe (12), and a number of guide rods (16) are fixedly connected to the outer wall of the fixing rod (13), and the guide rods (16) are distributed in a linear array.

Images