Waste heat recovery equipment of high-temperature furnace

By designing a gas flow direction mechanism in the waste heat recovery equipment of high-temperature furnaces and dynamically adjusting the flow direction of the flue gas, the problem of reducing the subsequent heat exchange effect of condensate in existing equipment is solved, and the waste heat recovery rate and heat exchange effect are improved.

CN119983838AInactive Publication Date: 2025-05-13ANHUI XIONGCHU ENERGY TECH CO LTD
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Patent Information

Application Number
CN202510335898.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-20
Publication Date
2025-05-13
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Due to the constant flow direction of the flue gas in the existing high-temperature furnace waste heat recovery equipment, the condensate has the highest heat exchange efficiency when it first comes into contact with the flue gas, and the subsequent heat exchange effect is gradually reduced, resulting in a decrease in the waste heat recovery effect.

Method used

A waste heat recovery equipment for a high-temperature furnace is designed, including a lower condensation box, an intermediate channel and an upper condensation box. A gas flow direction mechanism is provided in the intermediate channel. Through the coordination of the driving motor and the rotary driving plate, the flow direction of the flue gas under the guide layered plate is adjusted to avoid the accumulation of flue gas and increase the contact rate between the flue gas and the condensate.

Benefits of technology

By dynamically adjusting the flow direction of the flue gas, the overall heat exchange effect between the flue gas and the condensate is improved, the waste heat recovery rate is enhanced, and the increase in the circulation pressure of the condensate is avoided.

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Abstract

The invention discloses waste heat recovery equipment of a high-temperature furnace, and relates to the technical field of waste heat recovery, the waste heat recovery equipment comprises a lower condensation box, a middle channel and an upper condensation box, and a gas flow pointing mechanism is arranged in the middle channel. According to the waste heat recovery equipment of the high-temperature furnace, after smoke is guided into the middle channel, the smoke flows to all the rotating driving plates along the gap between the lower limiting pressing plate and the lower condensation box, the driving motor operates once every one minute and operates by 180 degrees each time, and therefore the smoke can be recycled. A first hydraulic cylinder is adjusted to drive a sealing isolation cover to be separated, the smoke is guided by all the guide layering plates to move to all positions of an upper condensation box, and the situation that the partial heat exchange effect is poor due to smoke accumulation is avoided; and the condensate circulating pressure in the upper condensing box is relieved, the overall heat exchange effect of the flue gas is improved, and then the waste heat recovery rate is improved.
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Description

Technical Field

[0001] The invention relates to the technical field of waste heat recovery, and in particular to waste heat recovery equipment for a high-temperature furnace. Background Art

[0002] High temperature furnaces are mainly used for heating and heat treatment in laboratories of industrial and mining enterprises, scientific research institutions, and laboratories. They are indispensable instruments and equipment in various laboratories. During the use of high temperature furnaces, the flue gas they produce carries a large amount of heat. If this heat is discharged, it will cause energy consumption and pose certain safety hazards.

[0003] During the use of existing high-temperature furnace waste heat recovery equipment, the flow direction of the flue gas is constant, which will result in the condensate that initially contacts the flue gas having the highest heat exchange efficiency and the highest heat absorption efficiency, thereby causing the condensate in this part to gradually reduce the subsequent flue gas heat exchange effect, resulting in incomplete heat exchange in the subsequent flue gas heat exchange process, reducing the waste heat recovery effect. Summary of the invention

[0004] The present invention discloses a waste heat recovery device for a high-temperature furnace, aiming to solve the technical problem that during the use of the existing waste heat recovery device for a high-temperature furnace, the flow direction of the flue gas is constant, which will result in the condensate that initially contacts the flue gas having the highest heat exchange efficiency, thereby causing the condensate in this part to gradually reduce the subsequent flue gas heat exchange effect, thereby resulting in incomplete heat exchange in the subsequent flue gas heat exchange process, thereby reducing the waste heat recovery effect.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A waste heat recovery device for a high-temperature furnace comprises a lower condensing box, an intermediate channel and an upper condensing box, wherein a gas flow directing mechanism is arranged inside the intermediate channel, and the gas flow directing mechanism comprises an upper limit pressure plate and a lower limit pressure plate, wherein the upper limit pressure plate is fixedly connected to the inner walls on both sides of the intermediate channel close to the upper condensing box, and the lower limit pressure plate is fixedly connected to the inner walls on both sides of the intermediate channel close to the lower condensing box, a plurality of guide layering plates are fixedly connected to the bottom of the upper condensing box, and the upper limit pressure plate is in contact with adjacent guide layering plates, a motor frame is fixedly connected to one side of the intermediate channel, and a driving motor is fixedly connected to the motor frame, the output shaft of the driving motor is fixedly connected to a rotating shaft through a coupling, and a rotating driving plate is fixedly connected to the outer side wall of the rotating shaft at an equal distance, and the rotating driving plate located above corresponds to the pointing angle of each guiding layering plate.

[0007] By providing a gas flow directing mechanism, after the flue gas is introduced into the middle channel, it flows along the gap between the lower limit pressure plate and the lower condensation box to each rotating driving plate. The driving motor runs once every one minute, and each time runs 180°, so as to rotate each rotating driving plate carrying the flue gas to dock with the guide layering plate. The hydraulic cylinder is adjusted to drive the sealing baffle to separate, and the flue gas moves to various positions of the upper condensation box under the guidance of each guide layering plate, so as to avoid poor heat exchange effect caused by smoke accumulation. At the same time, it also relieves the circulation pressure of the condensate inside the upper condensation box, improves the overall heat exchange effect of the flue gas, and then improves the waste heat recovery rate.

[0008] In a preferred embodiment, the intermediate channel is located between the guide layering plate and the rotating driving plate and has docking holes on both sides, and the intermediate channel is fixedly connected to a hydraulic cylinder 1 near the two docking holes, and the output ends of the two hydraulic cylinders 1 are fixedly connected to sealing covers, which are fitted with the guide layering plate and the rotating driving plate.

[0009] In a preferred solution, the upper condenser box is fixedly connected to the top of the middle channel, and the middle channel is fixedly connected to the top of the lower condenser box. Two connecting holes are opened on one side of the lower condenser box. Inlet and outlet pipes are fixedly connected to the inside of the two connecting holes. Inlet and outlet pipes are connected to the two inlet and outlet pipes through flanges.

[0010] In a preferred embodiment, an outlet hole is formed on one side of the intermediate channel located between the upper limit pressure plate and the upper condensation box, and an outlet pipe is fixedly connected to the inside of the outlet hole, and an outer wall of the outlet pipe is connected to an outlet valve via a flange; an inlet hole is formed on one side of the intermediate channel located below the lower limit pressure plate, an inlet pipe is fixedly connected to the inside of the inlet hole, and an outer wall of the inlet pipe is connected to the inlet valve via a flange.

[0011] In a preferred embodiment, a circulating heat exchange mechanism is provided inside the middle channel near the outlet pipe, and the circulating heat exchange mechanism includes an upper long tube, which is fixedly connected to the inner walls on both sides of the middle channel, and has air inlet holes at equal distances on the upper long tube.

[0012] By providing a circulating heat exchange mechanism, after the flue gas moves to the cavity where the upper long tube is located through the guide plate, the air pump is switched on and off regularly. When the air pump is turned on, the air pump extracts the flue gas located inside the upper cavity and discharges it to the lower cavity through the exhaust pipe, thereby accelerating the flow of flue gas inside the cavity, increasing the contact frequency between the flue gas and the upper condensation box, and accelerating the heat exchange efficiency of the flue gas. When the temperature sensor detects that the flue gas inside the cavity has dropped to the standard emission value, the outlet valve is opened and the flue gas is discharged, ensuring that the heat carried by the discharged flue gas is completely recovered.

[0013] In a preferred scheme, the upper limit pressure plate is fixedly connected to a pump ring frame at the groove, and the inside of the pump ring frame is fixedly connected to an air pump, the air inlet end of the air pump is connected to the inside of the upper long tube through a pipeline, and the air delivery end of the air pump is fixedly connected to an exhaust pipe, and the exhaust pipe has exhaust holes at both ends, and both ends of the upper long tube are fixedly connected to end mounting rings, and the opposite sides of the two end mounting rings are fixedly connected to adjustment rails, and the insides of the two adjustment rails are slidably connected to sliding blocks, and the bottoms of the two sliding blocks are fixedly connected to temperature sensors, and the opposite sides of the two sliding blocks are fixedly connected to connecting springs, and one end of the connecting spring is fixedly connected to the inner wall of the adjusting rail away from the sliding block.

[0014] In a preferred embodiment, the upper limit pressure plate is fixedly connected to the top near the upper long tube with two guide plates, and both guide plates are in contact with the bottom of the upper condensation box, and the two guide plates are connected to the same adjustment plate by a hinge, and the bottom of the upper condensation box located between the upper long tube and the adjustment plate is fixedly connected to an integration rod, and the bottom of the integration rod is fixedly connected to an extrusion spring rod at an equal distance, and one end of the extrusion spring rod is fixedly connected to one side of the adjustment plate.

[0015] In a preferred embodiment, an accelerating flow mechanism is provided inside the upper condensing box, and the accelerating flow mechanism includes a partition inner plate, which is fixedly connected to the inner walls on both sides of the upper condensing box. Liquid inlet holes are opened on the tops of the upper condensing box and the partition inner plate, and the insides of the two liquid inlet holes are fixedly connected with the same liquid inlet pipe.

[0016] In a preferred solution, the upper condensing box is provided with two circulating liquid outlet holes at the periphery of the liquid inlet pipe, and the insides of the two circulating liquid outlet holes are fixedly connected with circulating liquid outlet pipes.

[0017] In a preferred solution, two groups of hydraulic cylinders 2 are provided on the top of the upper condensing box, and the output end of each group of hydraulic cylinders 2 is fixedly connected to the same local pressure frame, and semicircular plates are fixedly connected to the opposite sides of the two local pressure frames, and mounting holes are opened on the two semicircular plates at equal distances, and an end block is fixedly connected to the inside of each mounting hole, and a connecting shaft is connected to each end block through a bearing, and a flip leaf is fixedly connected to the outer wall of each connecting shaft, and two partitions are fixedly connected to the top inner wall of the partition inner plate, and the two partitions are located between the two local pressure frames, and flow holes are opened on the two partitions, and flow pipes are fixedly connected to the inside of the two flow holes, and the outer walls of the two flow pipes are connected to one-way valves through flanges, and the one-way valves point from between the two partitions to the local pressure frames.

[0018] By providing an accelerating flow mechanism, during the waste heat recovery process, the second hydraulic cylinder is regularly adjusted to drive the local pressing frame to squeeze the condensate inside the upper condensation box, so that this part of the condensate flows upward, thereby accelerating the circulation of the condensate inside the upper condensation box and improving the waste heat recovery effect. At the same time, during the downward pressing process of the local pressing frame, the squeezing between the flipping leaves and the condensate causes the flipping leaves to rotate, thereby driving the condensate at the bottom of the upper condensation box toward the upper layer, flipping the condensate that carries heat and is gradually saturated to the upper layer, and the unsaturated condensate flows to the lower layer, thereby improving the heat exchange effect.

[0019] The waste heat recovery equipment of a high-temperature furnace provided by the present invention has the following characteristics: after the flue gas is introduced into the middle channel, it flows along the gap between the lower limit pressure plate and the lower condensation box to each rotating driving plate, and the driving motor runs once every one minute, and runs 180° each time, so as to rotate each rotating driving plate carrying the flue gas to dock with the guide layering plate, and adjust the hydraulic cylinder to drive the sealing baffle to separate, so that the flue gas moves to various positions of the upper condensation box under the guidance of each guide layering plate, so as to avoid the accumulation of flue gas and cause poor heat exchange effect in some parts. At the same time, it also relieves the circulation pressure of the condensate inside the upper condensation box, improves the overall heat exchange effect of the flue gas, and further improves the technical effect of the waste heat recovery rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of a waste heat recovery device for a high-temperature furnace proposed by the present invention.

[0021] Figure 2 for Figure 1 The main view of the overall structure.

[0022] Figure 3 This is a schematic diagram of the gas flow direction mechanism of the waste heat recovery equipment of a high-temperature furnace proposed by the present invention.

[0023] Figure 4 This is a schematic diagram of a circulating heat exchange mechanism of a waste heat recovery device for a high-temperature furnace proposed by the present invention.

[0024] Figure 5 for Figure 4 Flip diagram of the overall structure.

[0025] Figure 6 This is a schematic diagram of the internal structure of an upper condensing box of a waste heat recovery device for a high-temperature furnace proposed by the present invention.

[0026] Figure 7 This is a schematic diagram of the accelerating flow mechanism of the waste heat recovery equipment of a high-temperature furnace proposed by the present invention.

[0027] In the figure: 1, lower condenser box; 2, gas flow directing mechanism; 201, guide layered plate; 202, sealing cover; 203, motor frame; 204, driving motor; 205, hydraulic cylinder 1; 206, rotating shaft; 207, rotating driving plate; 208, upper limit pressure plate; 209, lower limit pressure plate; 3, upper condenser box; 4, circulating liquid outlet pipe; 5, liquid inlet pipe; 6, circulating heat exchange mechanism; 601, upper long pipe; 602, air inlet hole; 603, exhaust pipe; 604, pump ring frame; 605, air pump; 606, adjustment rail; 607, end mounting ring; 60 8. Guide vane; 609. Adjustment plate; 610. Connecting spring; 611. Sliding block; 612. Temperature sensor; 613. Extrusion spring rod; 614. Exhaust hole; 615. Integration rod; 7. Intermediate channel; 8. Flow acceleration mechanism; 801. Local pressure frame; 802. Partition inner plate; 803. Hydraulic cylinder 2; 804. Semicircular plate; 805. End block; 806. Connecting shaft; 807. Flip leaf; 9. Outlet pipe; 10. Inlet valve; 11. Inlet pipe; 12. Inlet and outlet pipes; 13. Partition plate; 14. Flow pipe; 15. One-way valve; 16. Outlet valve. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0029] A waste heat recovery device for a high-temperature furnace disclosed in the present invention is mainly applied to the existing waste heat recovery device for a high-temperature furnace. During use, the flow direction of the flue gas is constant, which will result in the condensate that initially contacts the flue gas having the highest heat exchange efficiency, thereby causing the condensate in this part to gradually decrease in the subsequent flue gas heat exchange effect, resulting in incomplete heat exchange in the subsequent flue gas heat exchange process, thereby reducing the waste heat recovery effect.

[0030] Reference Figure 1-Figure 7, a waste heat recovery device for a high-temperature furnace, comprising a lower condensing box 1, an intermediate channel 7 and an upper condensing box 3, a gas flow directing mechanism 2 is arranged inside the intermediate channel 7, and the gas flow directing mechanism 2 comprises an upper limit pressing plate 208 and a lower limit pressing plate 209, the upper limit pressing plate 208 is fixedly connected to the inner walls on both sides of the intermediate channel 7 close to the upper condensing box 3, and the lower limit pressing plate 209 is fixedly connected to the inner walls on both sides of the intermediate channel 7 close to the lower condensing box 1, a plurality of guide layering plates 201 are fixedly connected to the bottom of the upper condensing box 3, the upper limit pressing plate 208 contacts the adjacent guide layering plates 201, a motor frame 203 is fixedly connected to one side of the intermediate channel 7, and a driving motor 204 is fixedly connected to the motor frame 203, the output shaft of the driving motor 204 is fixedly connected to a rotating shaft 206 through a coupling, and a rotating driving plate 207 is fixedly connected to the outer wall of the rotating shaft 206 at an equal distance, and the rotating driving plate 207 located above corresponds to the pointing angle of each guiding layering plate 201.

[0031] In a specific application scenario, after the flue gas is introduced into the middle channel 7, it flows along the gap between the lower limit pressure plate 209 and the lower condensation box 1 to each rotating driving plate 207, and the driving motor 204 runs once every minute, 180 degrees each time, so as to rotate each rotating driving plate 207 carrying the flue gas to dock with the guide layering plate 201, and adjust the hydraulic cylinder 1 205 to drive the sealing baffle 202 to separate, and the flue gas moves to various positions of the upper condensation box 3 under the guidance of each guide layering plate 201, so as to avoid poor heat exchange effect caused by smoke accumulation, and at the same time, relieve the circulation pressure of the condensate inside the upper condensation box 3, improve the overall heat exchange effect of the flue gas, and thus improve the waste heat recovery rate.

[0032] Specifically, when the flue gas flows inside the middle channel 7, the lower limit plate 209 and the upper limit plate 208 limit its flow range to spread it out, thereby increasing the contact rate between the flue gas and the lower condensation box 1 and the upper condensation box 3, and further increasing the flue gas waste heat recovery rate.

[0033] Reference Figure 1-Figure 3 In a preferred embodiment, docking holes are opened on both sides of the middle channel 7 between the guide layering plate 201 and the rotating driving plate 207, and the middle channel 7 is fixedly connected with a hydraulic cylinder 205 near the two docking holes, and the output ends of the two hydraulic cylinders 205 are fixedly connected with a sealing cover 202, and the sealing cover 202 is in contact with the guide layering plate 201 and the rotating driving plate 207.

[0034] Reference Figure 1 and Figure 2In a preferred embodiment, the upper condenser tank 3 is fixedly connected to the top of the middle channel 7, and the middle channel 7 is fixedly connected to the top of the lower condenser tank 1. Two connecting holes are opened on one side of the lower condenser tank 1, and the inlet and outlet pipes 12 are fixedly connected inside the two connecting holes. The inlet and outlet pipes 12 are both connected to the inlet and outlet pipe 12 valves through flanges. An outlet hole is opened on one side of the middle channel 7 located between the upper limit pressure plate 208 and the upper condenser tank 3, and the outlet pipe 9 is fixedly connected inside the outlet hole, and the outer wall of the outlet pipe 9 is connected to the outlet valve 16 through a flange. An inlet hole is opened on one side of the middle channel 7 located below the lower limit pressure plate 209, and the inlet pipe 11 is fixedly connected inside the inlet hole, and the outer wall of the inlet pipe 11 is connected to the inlet valve 10 through a flange.

[0035] Reference Figure 1 , Figure 4 and Figure 5 In a preferred embodiment, a circulating heat exchange mechanism 6 is provided inside the middle channel 7 near the outlet pipe 9, and the circulating heat exchange mechanism 6 includes an upper long tube 601, the upper long tube 601 is fixedly connected to the inner walls on both sides of the middle channel 7, and air inlet holes 602 are opened on the upper long tube 601 at equal distances, the upper limit pressure plate 208 is fixedly connected to a pump ring frame 604 at the groove, and the inside of the pump ring frame 604 is fixedly connected to an air pump 605, the air inlet end of the air pump 605 is connected to the inside of the upper long tube 601 through a pipeline, the air delivery end of the air pump 605 is fixedly connected to an exhaust pipe 603, and the exhaust pipe 603 is provided with exhaust holes 614 at both ends, and both ends of the upper long tube 601 are fixedly connected to end mounting rings 607, and the opposite sides of the two end mounting rings 607 are fixedly connected to adjustment rails 606, and the inner sides of the two adjustment rails 606 The two sliding blocks 611 are slidably connected to the upper and lower parts of the upper condensing box 3, and the bottoms of the two sliding blocks 611 are fixedly connected to temperature sensors 612. The opposite sides of the two sliding blocks 611 are fixedly connected to connecting springs 610, and one end of the connecting spring 610 is fixedly connected to the inner wall of the adjusting rail 606 away from the sliding block 611. The top of the upper limit pressure plate 208 near the upper long tube 601 is fixedly connected to two guide plates 608, and the two guide plates 608 are in contact with the bottom of the upper condensing box 3. The two guide plates 608 are connected to the same adjusting plate 609 through hinges. The bottom of the upper condensing box 3 located between the upper long tube 601 and the adjusting plate 609 is fixedly connected to an integration rod 615, and the bottom of the integration rod 615 is fixedly connected to an extrusion spring rod 613 at an equal distance, and one end of the extrusion spring rod 613 is fixedly connected to one side of the adjusting plate 609.

[0036] In a specific application scenario, after the flue gas moves to the cavity where the upper long tube 601 is located through the guide plate 608, the air pump 605 is switched on and off regularly. When the air pump 605 is turned on, the air pump 605 extracts the flue gas inside the upper cavity and discharges it to the lower cavity through the exhaust pipe 603, thereby accelerating the flow of flue gas inside the cavity, increasing the frequency of contact between the flue gas and the upper condensation box 3, and accelerating the heat exchange efficiency of the flue gas. When the temperature sensor 612 detects that the flue gas inside the cavity has cooled to the standard emission value, the outlet valve 16 is opened and the flue gas is discharged, ensuring that the heat carried by the discharged flue gas is completely recovered.

[0037] Specifically, during the circulation of smoke inside the cavity, the smoke pushes the temperature sensor 612, so that the temperature sensor 612 monitors the smoke temperature at various positions inside the cavity in real time. During the smoke pushing process, after the connecting spring 610 is compressed to a certain extent, the sliding block 611 stops moving. When the air pump 605 is turned off, the connecting spring 610 drives the temperature sensor 612 to gradually reset and continue monitoring the smoke temperature.

[0038] It should be noted that when the amount of smoke accumulated inside the cavity where the upper long tube 601 is located is large, the air pressure squeezes the adjustment plate 609, and the flowing smoke can no longer continue to enter the cavity, thereby giving the smoke accumulated inside the cavity a certain amount of time for heat exchange.

[0039] Reference Figure 1 , Figure 2 , Figure 6 and Figure 7In a preferred embodiment, an accelerating flow mechanism 8 is provided inside the upper condensing box 3, and the accelerating flow mechanism 8 includes a partition inner plate 802, and the partition inner plate 802 is fixedly connected to the inner walls on both sides of the upper condensing box 3. The upper condensing box 3 and the partition inner plate 802 are both provided with liquid inlet holes on the top, and the two liquid inlet holes are internally fixedly connected with the same liquid inlet pipe 5. The upper condensing box 3 is provided with two circulating liquid outlet holes at the periphery of the liquid inlet pipe 5, and the two circulating liquid outlet holes are internally fixedly connected with the circulating liquid outlet pipe 4. Two groups of hydraulic cylinders 803 are provided on the top of the upper condensing box 3, and the output end of each group of hydraulic cylinders 803 is fixedly connected with the same local pressure frame 801, and the opposite sides of the two local pressure frames 801 are A semicircular plate 804 is fixedly connected, and mounting holes are opened at equal distances on the two semicircular plates 804. An end block 805 is fixedly connected to the inside of each mounting hole. A connecting shaft 806 is connected to each end block 805 through a bearing. A flap leaf 807 is fixedly connected to the outer wall of each connecting shaft 806. Two partitions 13 are fixedly connected to the top inner wall of the partition inner plate 802. The two partitions 13 are located between the two local pressure frames 801. Flow holes are opened on the two partitions 13. Flow pipes 14 are fixedly connected to the inside of the two flow holes. The outer walls of the two flow pipes 14 are connected to one-way valves 15 through flanges. The one-way valve 15 points from between the two partitions 13 to the local pressure frame 801.

[0040] Specifically, during the waste heat recovery process, the hydraulic cylinder 803 is regularly adjusted to drive the local pressure frame 801 to squeeze the condensate inside the upper condensation box 3, so that part of the condensate flows upward, accelerating the circulation of the condensate inside the upper condensation box 3 and improving the waste heat recovery effect. At the same time, during the downward pressing process of the local pressure frame 801, the squeezing between the flipping leaves 807 and the condensate causes the flipping leaves 807 to rotate, thereby driving the condensate at the bottom of the upper condensation box 3 toward the upper layer, flipping the condensate that carries heat and is gradually saturated to the upper layer, and the unsaturated condensate flows to the lower layer, thereby improving the heat exchange effect.

[0041] Working principle: When in use, the smoke enters the middle channel 7 through the inlet pipe 11, and flows along the gap between the lower limit plate 209 and the lower condensation box 1 to each rotating driving plate 207. The driving motor 204 runs once every minute, and each time it runs 180 degrees, so that each rotating driving plate 207 carrying smoke is rotated to dock with the guide layer plate 201, and the hydraulic cylinder 205 is adjusted to drive the sealing cover 202 to separate, and then the smoke moves to various positions of the upper condensation box 3 under the guidance of each guide layer plate 201, and the smoke contacts the upper condensation box 3. After heat exchange, it gradually flows along the upper limit pressure plate 208 to the guide plate 608, and then moves to the cavity where the upper long tube 601 is located, and regularly switches the air pump 605. When the air pump 605 is turned on, the air pump 605 extracts the flue gas inside the upper cavity and discharges it to the lower cavity through the exhaust pipe 603, thereby accelerating the flow of flue gas inside the cavity, increasing the contact frequency between the flue gas and the upper condensation box 3, and accelerating the heat exchange efficiency of the flue gas. When the temperature sensor 612 detects that the flue gas inside the cavity has cooled to the standard emission value, the outlet valve 16 is opened and the flue gas is discharged.

[0042] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A waste heat recovery device for a high temperature furnace, comprising a lower condenser box (1), an intermediate channel (7) and an upper condenser box (3), characterized in that: A gas flow directing mechanism (2) is provided inside the middle channel (7), and the gas flow directing mechanism (2) comprises an upper limit pressure plate (208) and a lower limit pressure plate (209), wherein the upper limit pressure plate (208) is fixedly connected to the inner walls on both sides of the middle channel (7) close to the upper condensation box (3), and the lower limit pressure plate (209) is fixedly connected to the inner walls on both sides of the middle channel (7) close to the lower condensation box (1), and a plurality of guide layered plates (201) are fixedly connected to the bottom of the upper condensation box (3), and the upper limit pressure plate (208) is fixedly connected to the inner walls on both sides of the middle channel (7) close to the lower condensation box (1). 208) contacts with the adjacent guide layering plates (201), one side of the middle channel (7) is fixedly connected with a motor frame (203), and the motor frame (203) is fixedly connected with a driving motor (204), the output shaft of the driving motor (204) is fixedly connected with a rotating shaft (206) through a coupling, and the outer side wall of the rotating shaft (206) is fixedly connected with a rotating driving plate (207) at an equal distance, and the rotating driving plate (207) located at the top corresponds to the pointing angle of each guide layering plate (201).

2. The waste heat recovery device for a high temperature furnace according to claim 1, characterized in that: The middle channel (7) is located between the guide layered plate (201) and the rotating drive plate (207) and has docking holes on both sides. The middle channel (7) is fixedly connected to a hydraulic cylinder (205) near the two docking holes. The output ends of the two hydraulic cylinders (205) are fixedly connected to a sealing diaphragm (202). The sealing diaphragm (202) is in close contact with the guide layered plate (201) and the rotating drive plate (207).

3. The waste heat recovery device for a high temperature furnace according to claim 1, characterized in that: The upper condenser box (3) is fixedly connected to the top of the middle channel (7), and the middle channel (7) is fixedly connected to the top of the lower condenser box (1). Two connection holes are opened on one side of the lower condenser box (1), and the insides of the two connection holes are fixedly connected to the inlet and outlet pipes (12), and the two inlet and outlet pipes (12) are connected to the inlet and outlet pipe (12) valves through flanges.

4. The waste heat recovery device for a high temperature furnace according to claim 2, characterized in that: The middle channel (7) is provided with an outlet hole on one side located between the upper limit pressure plate (208) and the upper condenser box (3), and an outlet pipe (9) is fixedly connected to the inside of the outlet hole, and an outer wall of the outlet pipe (9) is connected to an outlet valve (16) via a flange; the middle channel (7) is provided with an inlet hole on one side located below the lower limit pressure plate (209), and an inlet pipe (11) is fixedly connected to the inside of the inlet hole, and an outer wall of the inlet pipe (11) is connected to an inlet valve (10) via a flange.

5. The waste heat recovery device for a high temperature furnace according to claim 4, characterized in that: A circulating heat exchange mechanism (6) is provided inside the intermediate channel (7) near the outlet pipe (9), and the circulating heat exchange mechanism (6) comprises an upper long tube (601), the upper long tube (601) is fixedly connected to the inner walls on both sides of the intermediate channel (7), and air inlet holes (602) are opened on the upper long tube (601) at equal distances.

6. The waste heat recovery device for a high temperature furnace according to claim 5, characterized in that: The upper limit pressure plate (208) is fixedly connected to a pump ring frame (604) at the groove, and the inside of the pump ring frame (604) is fixedly connected to an air pump (605), the air inlet end of the air pump (605) is connected to the inside of the upper long tube (601) through a pipeline, and the air delivery end of the air pump (605) is fixedly connected to an exhaust pipe (603), and the exhaust pipe (603) is provided with exhaust holes (614) at both ends, and both ends of the upper long tube (601) are fixedly connected to end mounting rings (607 ), the two end mounting rings (607) are fixedly connected to the opposite side with an adjustment rail (606), the interiors of the two adjustment rails (606) are slidably connected with a sliding block (611), the bottoms of the two sliding blocks (611) are fixedly connected with a temperature sensor (612), the two sliding blocks (611) are fixedly connected to the opposite side with a connecting spring (610), and one end of the connecting spring (610) is fixedly connected to the inner wall of the adjustment rail (606) away from the sliding block (611).

7. The waste heat recovery device for a high temperature furnace according to claim 6, characterized in that: The upper limit pressure plate (208) is fixedly connected to the top of the upper long tube (601) with two guide plates (608), and the two guide plates (608) are in contact with the bottom of the upper condensation box (3). The two guide plates (608) are connected to the same adjustment plate (609) via a hinge. The bottom of the upper condensation box (3) located between the upper long tube (601) and the adjustment plate (609) is fixedly connected to an integration rod (615), and the bottom of the integration rod (615) is fixedly connected to an extrusion spring rod (613) at an equal distance, and one end of the extrusion spring rod (613) is fixedly connected to one side of the adjustment plate (609).

8. The waste heat recovery device for a high temperature furnace according to claim 1, characterized in that: The upper condensation box (3) is provided with an accelerating flow mechanism (8) inside, and the accelerating flow mechanism (8) comprises a partition inner plate (802), the partition inner plate (802) is fixedly connected to the inner walls on both sides of the upper condensation box (3), and the tops of the upper condensation box (3) and the partition inner plate (802) are both provided with liquid inlet holes, and the insides of the two liquid inlet holes are fixedly connected to the same liquid inlet pipe (5).

9. The waste heat recovery device for a high temperature furnace according to claim 8, characterized in that: The upper condensing box (3) is provided with two circulating liquid outlet holes at the periphery of the liquid inlet pipe (5), and the insides of the two circulating liquid outlet holes are fixedly connected with circulating liquid outlet pipes (4).

10. The waste heat recovery device for a high temperature furnace according to claim 9, characterized in that: Two groups of hydraulic cylinders (803) are provided on the top of the upper condensing box (3), and the output end of each group of hydraulic cylinders (803) is fixedly connected to the same local pressing frame (801), and the two local pressing frames (801) are fixedly connected to the opposite sides thereof with semicircular plates (804), and mounting holes are evenly spaced on the two semicircular plates (804), and an end block (805) is fixedly connected inside each mounting hole, and each end block (805) is connected to a connecting shaft (806) via a bearing, and each connecting shaft (80 6) are fixedly connected with flap leaves (807), the top inner wall of the partition inner plate (802) is fixedly connected with two partitions (13), the two partitions (13) are located between the two local pressure frames (801), the two partitions (13) are opened with flow holes, the inside of the two flow holes are fixedly connected with flow pipes (14), the outer walls of the two flow pipes (14) are connected with one-way valves (15) through flanges, and the one-way valves (15) are directed from between the two partitions (13) to the local pressure frame (801).