Boiler flue gas waste heat recycling system

Abstract

The utility model relates to the technical field of boiler flue gas waste heat utilization, and discloses a boiler flue gas waste heat recycling system which comprises a temporary storage box, a heat insulation assembly is arranged in the temporary storage box, an air inlet is fixedly connected to the bottom of the temporary storage box, a connecting pipe is fixedly connected to the top of the temporary storage box, and a valve switch is arranged on the periphery of the connecting pipe. A water tank is fixedly connected to the top of the connecting pipe, an air outlet is fixedly connected to the top of the water tank, a filter plate is slidably connected to the interior of the temporary storage tank, and a handle is fixedly connected to the front side of the filter plate. According to the utility model, the fixing of the filter plate can be relieved by lifting the connecting plate, then the filter plate is pulled out by pulling the handle, dust particles adhered to the filter plate can be cleaned after the filter plate is pulled out, the flue gas circulation is prevented from being influenced by blockage, and the temporary storage box has good heat insulation performance by coating the interior of the temporary storage box with the ceramic coating; therefore, heat loss is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of boiler flue gas waste heat utilization, in particular to a boiler flue gas waste heat recovery and utilization system. Background Art

[0002] The waste heat in the flue gas discharged by industrial kilns can reach several hundred degrees. The boiler flue gas waste heat recovery system can capture the heat energy in the flue gas discharged by the boiler and convert it into useful energy to achieve efficient energy utilization;

[0003] The boiler flue gas waste heat recovery system includes a heat exchanger, which is a device that transfers the heat energy in the flue gas to other media. Sometimes, the heat energy is not used immediately, but needs to be used at some point in the future. In order to make full use of the recovered heat energy, the system includes a heat energy storage device.

[0004] In the existing utilization of boiler flue gas waste heat, the filter device is not easy to clean. When dust particles in the flue gas accumulate on the filter plate, it is easy to cause blockage, thereby affecting the flow of flue gas. Therefore, a boiler flue gas waste heat recovery and utilization system is proposed to solve the above problem. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a boiler flue gas waste heat recovery and utilization system, which aims to improve the problem in the prior art that the filter system is difficult to clean and causes blockage, thereby affecting the flow of flue gas.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A boiler flue gas waste heat recovery and utilization system comprises a temporary storage box, a heat insulation assembly is provided inside the temporary storage box, an air inlet is fixedly connected to the bottom of the temporary storage box, a connecting pipe is fixedly connected to the top of the temporary storage box, a valve switch is provided on the outer periphery of the connecting pipe, a water tank is fixedly connected to the top of the connecting pipe, an air outlet is fixedly connected to the top of the water tank, a filter plate is slidably connected to the interior of the temporary storage box, a handle is fixedly connected to the front side of the filter plate, two springs are fixedly connected to the interior of the front of the temporary storage box, a fixing bolt is fixedly connected to the bottom end of the spring, a fixing bolt is slidably connected to the interior of the temporary storage box, and the bottom end of the fixing bolt is slidably connected to the interior of the filter plate;

[0008] As a further description of the above technical solution:

[0009] The thermal insulation component includes a ceramic coating, the ceramic coating is applied inside the temporary storage box, and a vacuum layer is provided inside the temporary storage box;

[0010] As a further description of the above technical solution:

[0011] The two fixing bolts are fixedly connected to each other on one side with a connecting plate;

[0012] As a further description of the above technical solution:

[0013] The rear side of the filter plate is fixedly connected to a limit plate, and the periphery of the limit plate is slidably connected to the interior of the temporary storage box;

[0014] As a further description of the above technical solution:

[0015] The top of one side of the water tank is fixedly connected to a water inlet pipe, and the bottom of one side of the water tank is fixedly connected to a water outlet pipe;

[0016] As a further description of the above technical solution:

[0017] A plurality of evenly distributed heat conducting pipes are fixedly connected to the interior of the water tank;

[0018] As a further description of the above technical solution:

[0019] Gas collecting chambers are provided on both the upper and lower sides of the water tank;

[0020] As a further description of the above technical solution:

[0021] The bottom end of the water tank is fixedly connected to a plurality of evenly distributed fixing rods, and the bottom ends of the fixing rods are fixedly connected to the top of the temporary storage box.

[0022] The utility model has the following beneficial effects:

[0023] In the utility model, the fixing bolt can be driven to move by lifting the connecting plate, and the fixing bolt can release the fixation of the filter plate by moving. After releasing the fixation of the filter plate, the filter plate can be pulled out by pulling the handle. After pulling out the filter plate, the dust particles adhering to the filter plate can be cleaned to prevent the accumulation and blockage of dust particles, thereby affecting the circulation of smoke. After cleaning, the filter plate is pushed back and the fixing bolt can be driven to reset by the elastic force of the spring. The fixing bolt can fix the filter plate by resetting. Installing the filter plate can filter solid particles, gaseous pollutants or other harmful substances in the smoke.

[0024] In the present invention, by applying a ceramic coating on the inside of the temporary storage box, it can have good high temperature resistance and heat insulation performance, thereby reducing heat loss. By opening a vacuum layer inside the temporary storage box, heat conduction can be effectively prevented, thereby improving the thermal insulation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a three-dimensional schematic diagram of a boiler flue gas waste heat recovery and utilization system proposed in the utility model;

[0026] Figure 2 This is a structural diagram of a temporary storage box of a boiler flue gas waste heat recovery and utilization system proposed in the utility model;

[0027] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0028] Figure 4 This is a structural schematic diagram of a water tank of a boiler flue gas waste heat recovery and utilization system proposed in the utility model.

[0029] Legend:

[0030] 1. Temporary storage box; 2. Air inlet; 3. Connecting pipe; 4. Water tank; 5. Air outlet; 6. Filter plate; 7. Handle; 8. Spring; 9. Fixing bolt; 10. Ceramic coating; 11. Vacuum layer; 12. Connecting plate; 13. Limiting plate; 14. Water inlet pipe; 15. Water outlet pipe; 16. Heat transfer pipe; 17. Fixing rod. DETAILED DESCRIPTION

[0031] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0032] Reference Figure 1 - Figure 3 The utility model provides an embodiment of a boiler flue gas waste heat recovery and utilization system, including a temporary storage box 1, the bottom of the temporary storage box 1 is fixedly connected to an air inlet 2, the top of the temporary storage box 1 is fixedly connected to a connecting pipe 3, the outer periphery of the connecting pipe 3 is provided with a valve switch, the top of the connecting pipe 3 is fixedly connected to a water tank 4, the top of the water tank 4 is fixedly connected to an air outlet 5, the interior of the temporary storage box 1 is slidably connected to a filter plate 6, the front side of the filter plate 6 is fixedly connected to a handle 7, two springs 8 are fixedly connected to the interior of the front of the temporary storage box 1, the bottom end of the spring 8 is fixedly connected to a fixing bolt 9, the rear side of the fixing bolt 9 is slidably connected to the interior of the temporary storage box 1, and the bottom end of the fixing bolt 9 is slidably connected to the interior of the filter plate 6. The temporary storage box 1 is used to store flue gas, the air inlet 2 is used to discharge the flue gas into the temporary storage box 1, the connecting pipe 3 is used to discharge the flue gas inside the temporary storage box 1 into the water tank 4, the valve switch is used to control the switch of the connecting pipe 3, the water tank 4 is used to store liquid, the air outlet 5 is used to discharge the flue gas from the inside of the water tank 4, the filter plate 6 is used to filter dust particles in the flue gas, the handle 7 is used to pull out the filter plate 6, the spring 8 can drive the fixing bolt 9 to reset through elastic force, and the fixing bolt 9 is used to fix the filter plate 6.

[0033] Reference Figure 1 - Figure 3 Temporary storage box 1 is internally provided with a thermal insulation assembly, which includes a ceramic coating 10. Ceramic coating 10 is applied to the interior of temporary storage box 1, and a vacuum layer 11 is provided inside temporary storage box 1. Ceramic coating 10 has excellent high-temperature resistance and thermal insulation properties, thereby reducing heat loss. Vacuum layer 11 can effectively prevent heat conduction, thereby improving the thermal insulation effect.

[0034] Reference Figure 1 、 Figure 2 and Figure 4 The two fixing bolts 9 are fixedly connected to a connecting plate 12 on one side facing each other. The rear side of the filter plate 6 is fixedly connected to a limit plate 13. The outer periphery of the limit plate 13 is slidably connected to the interior of the temporary storage box 1. The top of one side of the water tank 4 is fixedly connected to a water inlet pipe 14. The bottom of one side of the water tank 4 is fixedly connected to a water outlet pipe 15. A plurality of evenly distributed heat pipes 16 are fixedly connected to the interior of the water tank 4. Gas collecting chambers are provided on both the upper and lower sides of the interior of the water tank 4. A plurality of evenly distributed fixing rods 17 are fixedly connected to the bottom end of the water tank 4. The bottom ends of the fixing rods 17 are fixedly connected to the top of the temporary storage box 1. The connecting plate 12 is used to connect the two fixing bolts 9. The limit plate 13 prevents the filter plate 6 from falling off from the interior of the temporary storage box 1. The water inlet pipe 14 is used to drain liquid into the interior of the water tank 4. The water outlet pipe 15 is used to discharge liquid from the interior of the water tank 4. The heat pipe 16 is used to heat the liquid inside the water tank 4. The fixing rod 17 is used to fix the water tank 4.

[0035] Working principle: The liquid can be discharged into the water tank 4 through the water inlet pipe 14, and the flue gas generated by the boiler enters the temporary storage box 1 through the air inlet 2. The flue gas inside the temporary storage box 1 can be discharged into the air collecting chamber inside the water tank 4 through the connecting pipe 3 by opening the valve switch. The air collecting chamber is connected to a heat conducting pipe 16. The flue gas can heat the liquid inside the water tank 4 evenly and quickly through the heat conducting pipe 16, and the heated liquid inside the water tank 4 can be discharged through the water outlet pipe 15. In order to avoid energy waste during the drainage process, the valve switch on the connecting pipe 3 can be closed to store the flue gas inside the temporary storage box 1. The ceramic coating 10 inside the temporary storage box 1 can make it have good high temperature resistance and heat insulation performance, thereby reducing heat loss. By opening a vacuum layer 11 inside the temporary storage box 1, heat conduction can be effectively prevented, thereby improving the thermal insulation effect. By lifting the connecting plate 12, the fixing bolt 9 can be driven to move, and the fixing bolt 9 can release the fixation of the filter plate 6 by moving. After releasing the fixation of the filter plate 6, the filter plate 6 can be pulled out by pulling the handle 7. After pulling out the filter plate 6, the dust particles adhering to the filter plate 6 can be cleaned to prevent dust particles from accumulating and clogging, thereby affecting the circulation of flue gas. After cleaning, the filter plate 6 is pushed back, and the fixing bolt 9 can be driven to reset by the elastic force of the spring 8. The fixing bolt 9 can fix the filter plate 6 by resetting. Installing the filter plate 6 can filter solid particles, gaseous pollutants or other harmful substances in the flue gas.

[0036] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A boiler flue gas waste heat recovery and utilization system, comprising a temporary storage box (1), characterized in that: The temporary storage box (1) is provided with a heat insulation component inside, the bottom of the temporary storage box (1) is fixedly connected to an air inlet (2), the top of the temporary storage box (1) is fixedly connected to a connecting pipe (3), the outer periphery of the connecting pipe (3) is provided with a valve switch, the top of the connecting pipe (3) is fixedly connected to a water tank (4), the top of the water tank (4) is fixedly connected to an air outlet (5), the interior of the temporary storage box (1) is slidably connected to a filter plate (6), the front side of the filter plate (6) is fixedly connected to a handle (7), the front side of the temporary storage box (1) is fixedly connected to two springs (8), the bottom end of the spring (8) is fixedly connected to a fixing bolt (9), the rear side of the fixing bolt (9) is slidably connected to the interior of the temporary storage box (1), and the bottom end of the fixing bolt (9) is slidably connected to the interior of the filter plate (6); The heat insulation component comprises a ceramic coating (10), the ceramic coating (10) is applied inside the temporary storage box (1), and a vacuum layer (11) is provided inside the temporary storage box (1).

2. The boiler flue gas waste heat recovery system according to claim 1, characterized in that: The two fixing bolts (9) are fixedly connected to each other on one side with a connecting plate (12).

3. The boiler flue gas waste heat recovery system according to claim 1, characterized in that: The rear side of the filter plate (6) is fixedly connected to a limiting plate (13), and the outer periphery of the limiting plate (13) is slidably connected to the interior of the temporary storage box (1).

4. The boiler flue gas waste heat recovery system according to claim 1, characterized in that: A water inlet pipe (14) is fixedly connected to the top of one side of the water tank (4), and a water outlet pipe (15) is fixedly connected to the bottom of one side of the water tank (4).

5. The boiler flue gas waste heat recovery system according to claim 1, characterized in that: A plurality of evenly distributed heat conducting pipes (16) are fixedly connected to the interior of the water tank (4).

6. The boiler flue gas waste heat recovery system according to claim 1, characterized in that: Gas collecting chambers are provided on both the upper and lower sides of the water tank (4).

7. The boiler flue gas waste heat recovery system according to claim 1, characterized in that: The bottom end of the water tank (4) is fixedly connected to a plurality of evenly distributed fixing rods (17), and the bottom ends of the fixing rods (17) are fixedly connected to the top of the temporary storage box (1).

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