Adjusting device for fully utilizing flue gas heat of heat accumulating type heating furnace

Abstract

The utility model discloses an adjusting device for fully utilizing flue gas heat of a heat accumulating type heating furnace, which comprises a three-way sealing box, an inverted T-shaped partition plate is welded inside the three-way sealing box, and the inverted T-shaped partition plate divides the inside of the three-way sealing box into a coal gas cavity, a flue gas cavity and a transition cavity. According to the heat accumulating type heating furnace, the burner is controlled by the three-way valve to periodically and alternately switch the burning state and the smoke discharging state, coal gas enters the burner pipe to be burnt, if generated smoke meets the discharging requirement, the smoke enters the smoke cavity and then is discharged through the third through opening and the smoke discharging pipe, and if the temperature does not meet the discharging requirement, the smoke is discharged through the third through opening and the smoke discharging pipe. The high-temperature flue gas is fed into the burner pipe, high-temperature heat in the flue gas is fully utilized until the flue gas meets emission requirements, the flue gas is exhausted, the exhaust gas temperature is balanced, automatic control is achieved through the device, adjustment is convenient, the treatment precision is high, forced reversing is carried out without manual intervention, and the device is suitable for large-scale popularization and application. And the safety is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas treatment in heating furnaces, in particular to a regulating device which can fully utilize the heat of flue gas in a heat storage type heating furnace. Background Art

[0002] During the combustion adjustment process of the regenerative heating furnace, the gas and air supply of each section will change, and the corresponding exhaust volume must change accordingly to ensure that the cold entering the burner and the heat of the exhaust gas are relatively balanced. Otherwise, the exhaust temperature of some burners will be too high and that of some burners will be too low. Usually, a three-way valve is used to transport gas and flue gas.

[0003] At present, the exhaust temperature of the flue gas in the rod and wire mill is generally high, up to 270℃; the exhaust temperature is uneven: as high as 240℃, as low as 80℃. The high temperature does not meet the emission standards, and there is also the problem of heat source waste. In the existing technology, the three-way valve often needs to be forced to change direction, and the number of manual interventions in the boiler operation is high, resulting in fire, gas alarm, and reduced furnace equipment life; on the other hand, it also causes gas alarms around the furnace body, which brings safety hazards. In addition, when the three-way valve is in operation, if the sealing is not good, it will cause gas to flow into the flue gas pipeline or cause incomplete combustion.

[0004] Therefore, the utility model develops a regulating device which can fully utilize the heat of the flue gas of the regenerative heating furnace to solve the above problems. Utility Model Content

[0005] The technical problem to be solved by the utility model is to address the deficiencies of the above-mentioned prior art and to provide a regulating device for fully utilizing the heat of the flue gas of a heat storage type heating furnace. The heat storage type heating furnace controls the burner through a three-way valve to periodically switch between the combustion and exhaust states, and the coal gas enters the burner tube for combustion. If the generated flue gas meets the emission requirements, the flue gas enters the flue gas cavity and is subsequently discharged through the third port and the exhaust gas pipe. If the temperature does not meet the emission requirements, the circular through-channel between the flue gas cavity and the transition cavity is controlled to be closed, and the high-temperature flue gas is sent into the burner tube again, so as to fully utilize the high-temperature heat in the flue gas until it is discharged in accordance with the emission requirements, thereby solving the problems raised in the background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A regulating device for making full use of the heat of flue gas in a regenerative heating furnace, comprising a three-way sealed box, an inverted T-shaped partition is welded inside the three-way sealed box, and the inverted T-shaped partition divides the inside of the three-way sealed box into a gas chamber, a smoke chamber and a transition chamber, the outer wall of the three-way sealed box is provided with a first opening, a second opening and a third opening, and the first opening, the second opening and the third opening are respectively connected to the gas chamber, the transition chamber and the smoke chamber, and the outer sides of the first opening, the second opening and the third opening are respectively connected to a gas supply pipe, a burner pipe and a smoke exhaust pipe through flanges;

[0008] Circular through-channels are provided on both side transverse plates of the inverted T-shaped partition, and the gas chamber and the smoke chamber are respectively connected with the transition chamber through the two circular through-channels, and the tops of the gas chamber and the smoke chamber are respectively provided with a first cylinder and a second cylinder, and the output ends of the first cylinder and the second cylinder are both transmission-connected with a plugging assembly, and the two plugging assemblies are respectively used for opening and closing the two circular through-channels;

[0009] The plugging assembly includes a conical valve flap and an elastic protective gasket, the elastic protective gasket is sleeved on both sides of the circular through-channel and covers the inner wall thereof, the first cylinder and the second cylinder are respectively connected to the two conical valve flaps by transmission, and the conical valve flap matches the inner top of the elastic protective gasket;

[0010] The input ends of the first cylinder and the second cylinder are respectively connected to the first pneumatic mechanism and the second pneumatic mechanism for kinetic energy control of the first cylinder and the second cylinder. The connecting ends of the first pneumatic mechanism and the second pneumatic mechanism are electrically connected to a control machine for controlling the operation of the first cylinder and the second cylinder to achieve alternating lifting and lowering of the two sealing components.

[0011] Preferably, the output ends of the first cylinder and the second cylinder are both fixedly connected with short rods, and the conical valve flap is mounted on the short rods through a clamping assembly, so that the conical valve flap can be replaced.

[0012] Preferably, the clamping assembly comprises an upper clamping plate and a lower clamping plate, the upper clamping plate and the lower clamping plate are buckled and connected to both sides of the conical valve flap, and the short rod passes through the combined structure of the upper clamping plate, the lower clamping plate and the conical valve flap.

[0013] Preferably, an inner buckle ring is integrally provided at the bottom axis of the upper clamping plate, an outer buckle ring is provided at the top axis of the lower clamping plate, and the inner buckle ring is buckled inside the outer buckle ring, and the outer buckle ring is inserted into the axial through hole of the conical valve disc.

[0014] Preferably, a sleeve pile is integrally provided at the axis center of the top of the upper splint, and the sleeve pile matches the output end of the first cylinder or the second cylinder. A first plug hole penetrates the outer side of the output end of the first cylinder or the second cylinder, and a second plug hole penetrates the outer side of the sleeve pile. The first plug hole and the second plug hole are butt-jointed and are jointly plugged with a pin.

[0015] Preferably, the diameter of the short rod is smaller than the output end diameter of the first cylinder or the second cylinder;

[0016] An adjusting notch is provided on the surface of the short rod, and a wedge plate is inserted into the adjusting notch to tighten the combined structure of the upper clamping plate, the lower clamping plate and the conical valve flap.

[0017] Preferably, the first cylinder and the second cylinder are both fixedly mounted on the outer wall of the three-way sealing box, and the output ends of the first cylinder and the second cylinder pass through the three-way sealing box, and linear bearings are installed between the output ends of the first cylinder and the second cylinder and the through hole.

[0018] Preferably, a sealing gasket and a spring member are movably sleeved on the outer sides of the output ends of the first cylinder and the second cylinder, and the spring member is located between the sealing gasket and the conical valve flap.

[0019] Preferably, the conical valve flap, the elastic protective gasket and the sealing gasket are all made of high temperature resistant rubber material.

[0020] Preferably, the input end and output end of the control machine are respectively provided with an A / D converter and a D / A converter, a temperature sensor is installed in the transition chamber, the temperature sensor is electrically connected to the A / D converter, the first pneumatic mechanism and the second pneumatic mechanism are both electrically connected to the D / A converter, and the connection end of the control machine is provided with a display screen.

[0021] The utility model has the following beneficial effects:

[0022] 1. The regenerative heating furnace controls the burner through the three-way valve to periodically switch between the combustion and exhaust states. The coal gas enters the burner tube for combustion. If the generated flue gas meets the emission requirements, the flue gas enters the flue gas cavity and is then discharged through the third port and the exhaust gas pipe. If the temperature does not meet the emission requirements, the circular through-channel between the flue gas cavity and the transition cavity is closed, and the high-temperature flue gas is sent to the burner tube again to make full use of the high-temperature heat in the flue gas until it meets the emission requirements for discharge, so that the exhaust temperature is balanced. The device is automatically controlled, easy to adjust, and has high processing accuracy. There is no need for manual intervention for forced reversing, and the safety is greatly improved;

[0023] 2. Through the cooperation of the conical valve disc and the elastic protective gasket, when the conical valve disc is pressed against the inner side of the elastic protective gasket, a sealing effect is achieved, solving the problem of poor sealing of the traditional vertical piston valve disc after closing under the state of wear or thermal expansion and contraction, overcoming the defect of incomplete combustion caused by the direct flow of gas into the flue gas pipeline, and using the outward tension of the spring part to always press the sealing gasket at the connection position, thereby improving the airtightness of the three-way sealing box, avoiding the leakage of gas and flue gas, and improving the safety of the working environment;

[0024] 3. By optimizing the installation structure of the conical valve disc, a clamping assembly is designed to clamp the conical valve disc and effectively support it. The structure is easy to install, and the conical valve disc is structurally stable after installation, and is less affected by high temperature environment and smoke. The conical valve disc is easy to disassemble, maintain and replace after long-term use in a high temperature environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0026] Figure 2 For this utility model Figure 1 A magnified view of the structure of the middle part A;

[0027] Figure 3 This is an exploded view from the first perspective of the installation structure of the clamping assembly, the conical valve disc and the short rod in the utility model;

[0028] Figure 4 This is an exploded view from a second perspective of the mounting structure of the clamping assembly, the conical valve disc and the short rod in the utility model;

[0029] Figure 5 This is a control flow chart of the intelligent control system provided by the utility model.

[0030] Among them are:

[0031] Three-way sealing box-1; inverted T-shaped partition-2; gas chamber-3; smoke chamber-4; transition chamber-5; first port-6; second port-7; third port-8; gas supply pipe-9; burner pipe-10; smoke exhaust pipe-11; first cylinder-12; second cylinder-13; blocking assembly-14; first pneumatic mechanism-15; second pneumatic mechanism-16; control machine-17; short rod-18; clamping assembly-19; adjusting notch-20; wedge plate-21; linear bearing-22; sealing pad-23; spring member-24; temperature sensor-25; display screen-26;

[0032] Conical valve disc-141; elastic protective gasket-142;

[0033] Upper clamping plate 191; lower clamping plate 192; inner buckle ring 193; outer buckle ring 194; sleeve pile 195; first plug-in hole 196; second plug-in hole 197. DETAILED DESCRIPTION

[0034] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific preferred embodiments.

[0035] In the description of the present invention, it should be understood that the terms "left side", "right side", "upper part", "lower part", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. "First", "second", etc. do not indicate the importance of the components, and therefore cannot be understood as a limitation on the present invention. The specific dimensions used in this embodiment are only for illustrating the technical solution, and do not limit the scope of protection of the present invention.

[0036] like Figure 1-5 As shown, a regulating device for making full use of the heat of flue gas in a regenerative heating furnace comprises a three-way sealed box 1, an inverted T-shaped partition 2 is welded inside the three-way sealed box 1, and the inverted T-shaped partition 2 divides the inside of the three-way sealed box 1 into a gas chamber 3, a smoke chamber 4 and a transition chamber 5, and the outer wall of the three-way sealed box 1 is provided with a first opening 6, a second opening 7 and a third opening 8, and the first opening 6, the second opening 7 and the third opening 8 are respectively connected to the gas chamber 3, the transition chamber 5 and the smoke chamber 4, and the outer sides of the first opening 6, the second opening 7 and the third opening 8 are respectively connected to a gas supply pipe 9, a burner pipe 10 and a smoke exhaust pipe 11 through flanges, wherein a one-way valve is installed in the gas supply pipe 9 and the smoke exhaust pipe 11 to make the transmission direction of the gas and the smoke different from that of the transition chamber 5. Figure 1 As shown in the direction of the middle arrow, an air pump is installed outside the three-way sealing box 1, and the output end of the air pump extends to the inside of the transition chamber 5. The air pump is used to blow air to increase the pressure inside the transition chamber 5, and the gas or smoke in the transition chamber 5 is blown out;

[0037] Circular through-channels are provided on both side transverse plates of the inverted T-shaped partition 2. The gas chamber 3 and the smoke chamber 4 are respectively connected to the transition chamber 5 through the two circular through-channels. The tops of the gas chamber 3 and the smoke chamber 4 are respectively provided with a first cylinder 12 and a second cylinder 13. The output ends of the first cylinder 12 and the second cylinder 13 are both transmission-connected with a plugging assembly 14. The two plugging assemblies 14 are respectively used for opening and closing the two circular through-channels.

[0038] The plugging assembly 14 includes a conical valve flap 141 and an elastic protective gasket 142. The elastic protective gasket 142 is sleeved on both sides of the circular through-channel and covers the inner wall thereof. The elastic protective gasket 142 is tightly fitted on the inverted T-shaped partition 2 by means of the clamping ring shape at the bottom of the circular through-channel and the bonding method. When subjected to the extrusion thrust of the conical valve flap 141, it will not be separated from the installation position. The first cylinder 12 and the second cylinder 13 are respectively connected to the two conical valve flaps 141 by transmission, and the conical valve flaps 141 Matching with the top of the inner side of the elastic protective gasket 142, the bottom diameter of the conical valve disc 141 is smaller than the inner diameter of the elastic protective gasket 142, and the top diameter of the conical valve disc 141 is larger than the inner diameter of the elastic protective gasket 142. When the conical valve disc 141 is pressed against the inner side of the elastic protective gasket 142, a sealing effect is achieved, solving the problem of poor sealing of the traditional vertical piston valve disc after closing under the state of wear or thermal expansion and contraction, and overcoming the defect of incomplete combustion caused by the direct flow of coal gas into the flue gas pipeline;

[0039] The input ends of the first cylinder 12 and the second cylinder 13 are respectively connected with the first pneumatic mechanism 15 and the second pneumatic mechanism 16 for controlling the kinetic energy of the first cylinder 12 and the second cylinder 13. The connection ends of the first pneumatic mechanism 15 and the second pneumatic mechanism 16 are electrically connected to the control machine 17 for controlling the operation of the first cylinder 12 and the second cylinder 13 to realize the alternating lifting and lowering of the two blocking components 14. When the circular through-channel between the coal gas chamber 3 and the transition chamber 5 is opened, the circular through-channel between the smoke chamber 4 and the transition chamber 5 is closed, and the coal gas from the coal gas supply pipe 9 can enter the burner pipe 10 for combustion. On the contrary, when the circular through-channel between the coal gas chamber 4 and the transition chamber 5 is opened, the circular through-channel between the coal gas chamber 3 and the transition chamber 5 is closed, and the smoke meeting the emission requirements can enter the smoke chamber 4 and then be discharged through the third port 8 and the smoke exhaust pipe 11.

[0040] The first cylinder 12 and the second cylinder 13 are both fixedly mounted on the outer wall of the three-way sealing box 1, and the output ends of the first cylinder 12 and the second cylinder 13 penetrate the three-way sealing box 1, and a linear bearing 22 is installed between the output ends of the first cylinder 12 and the second cylinder 13 and the through hole; the outer sides of the output ends of the first cylinder 12 and the second cylinder 13 are movably sleeved with a sealing gasket 23 and a spring member 24, and the spring member 24 is located between the sealing gasket 23 and the conical valve disc 141;

[0041] During the extension and retraction process, the output ends of the first cylinder 12 and the second cylinder 13 use the linear bearing 22 to improve flexibility and reduce wear between the devices. At the connection port, the outward tension of the spring member 24 is used to always press the sealing gasket 23 at the connection port, thereby improving the airtightness of the three-way sealing box 1, avoiding leakage of gas and smoke, and improving the safety of the working environment.

[0042] After the conical valve flap 141 is used for a long time in a high temperature environment, there will inevitably be wear and impurities attached to its surface, which will affect the airtightness of the circular through-channel after it is closed. At this time, it needs to be maintained and replaced. Due to the high temperature environment and the attachment of smoke in the flue gas, the conical valve flap 141 is often unable to be disassembled. If it is fixed with screws, the screw bite teeth are prone to rust or be blocked by smoke. Therefore, the present application makes the following improvements to the installation structure of the conical valve flap 141:

[0043] The output ends of the first cylinder 12 and the second cylinder 13 are both fixedly connected with a short rod 18, and the conical valve flap 141 is installed on the short rod 18 through a clamping assembly 19, so that the conical valve flap 141 can be replaced. The diameter of the short rod 18 is smaller than the output end diameter of the first cylinder 12 or the second cylinder 13, which facilitates the installation and positioning of the clamping assembly 19 and the conical valve flap 141;

[0044] The clamping assembly 19 includes an upper clamping plate 191 and a lower clamping plate 192. The upper clamping plate 191 and the lower clamping plate 192 are buckled and connected to the two sides of the conical valve disc 141, and the short rod 18 penetrates the combined structure of the upper clamping plate 191, the lower clamping plate 192 and the conical valve disc 141. The diameter of the upper clamping plate 191 is greater than the diameter of the lower clamping plate 192. The conical valve disc 141 is clamped by the upper clamping plate 191 and the lower clamping plate 192, which has a certain supporting effect on the conical valve disc 141.

[0045] An inner buckle ring 193 is integrally provided at the axis center of the bottom of the upper clamping plate 191, and an outer buckle ring 194 is provided at the axis center of the top of the lower clamping plate 192, and the inner buckle ring 193 is buckled inside the outer buckle ring 194, and the outer buckle ring 194 is plugged into the axis through hole of the conical valve disc 141; a sleeve pile 195 is integrally provided at the axis center of the top of the upper clamping plate 191, and the sleeve pile 195 matches the output end of the first cylinder 12 or the second cylinder 13, and a first plug hole 196 is penetrated on the outer side of the output end of the first cylinder 12 or the second cylinder 13, and a second plug hole 197 is penetrated on the outer side of the sleeve pile 195, and the first plug hole 196 and the second plug hole 197 are butt-jointed and pins are inserted together; an adjustment notch 20 is provided on the surface of the short rod 18, and a wedge plate 21 is inserted in the adjustment notch 20, which is used to tighten the combined structure of the upper clamping plate 191, the lower clamping plate 192 and the conical valve disc 141;

[0046] When installing the conical valve flap 141, place it between the upper clamping plate 191 and the lower clamping plate 192, and complete the buckling of the upper clamping plate 191 and the lower clamping plate 192 to clamp the conical valve flap 141. At this time, the clamping assembly 19 containing the conical valve flap 141 has a mounting hole matching the outer diameter of the short rod 18 at the axis center. The corresponding mounting hole is inserted into the short rod 18, and the flat surface of the wedge plate 21 is attached to the lower clamping plate 192 and inserted into the adjusting slot 20. The end of the wedge plate 21 is gently tapped to make it interference fit with the adjusting slot 20. At this time, the output end of the first cylinder 12 or the second cylinder 13 contacts the bottom surface of the sleeve 195, and the first plug hole 196 corresponds to the second plug hole 197. Then, the pin is inserted into the first plug hole 196 and the second plug hole 197 to complete the installation of the conical valve flap 141. This structure is less affected by high temperature environment and smoke and dust, and is convenient for later maintenance and replacement.

[0047] In order to adapt to use in high temperature environments and ensure the airtightness of the structure, the conical valve flap 141, the elastic protective gasket 142 and the sealing gasket 23 are all made of high temperature resistant rubber material.

[0048] In addition, the utility model also designs an intelligent control system, the input end and output end of the control machine 17 are respectively provided with an A / D converter and a D / A converter, a temperature sensor 25 is installed in the transition chamber 5, the temperature sensor 25 is electrically connected to the A / D converter, the first pneumatic mechanism 15 and the second pneumatic mechanism 16 are both electrically connected to the D / A converter, a display screen 26 is provided at the connection end of the control machine 17, the temperature sensor 25 senses the flue gas temperature in the transition chamber 5, and displays the temperature information on the display screen 26 in real time, so that the staff can intuitively understand the flue gas temperature, and set the temperature emission threshold value through the control machine 17. When the temperature is higher than the emission threshold value, the circular through channel between the flue gas chamber 4 and the transition chamber 5 is controlled to be closed, and the high-temperature flue gas is sent into the burner tube 10 again, so as to make full use of the high-temperature heat in the flue gas. When the temperature is lower than the emission threshold value, the flue gas is discharged to make the exhaust gas temperature balanced.

[0049] When the utility model is working, the regenerative heating furnace controls the burner through the three-way valve to periodically switch between the combustion and smoke exhaust states, so that the transmission direction of the coal gas and the smoke is as follows: Figure 1 As shown in the direction of the middle arrow, when the circular through-channel between the gas chamber 3 and the transition chamber 5 is opened, the circular through-channel between the smoke chamber 4 and the transition chamber 5 is closed, and the gas enters the burner tube 10 for combustion. When the circular through-channel between the smoke chamber 4 and the transition chamber 5 is opened, the circular through-channel between the gas chamber 3 and the transition chamber 5 is closed, and the smoke that meets the emission requirements enters the smoke chamber 4, and is then discharged through the third port 8 and the smoke exhaust pipe 11. When the smoke temperature is too high and does not meet the emission requirements, the circular through-channel between the smoke chamber 4 and the transition chamber 5 is controlled to be closed, and the high-temperature smoke is then sent to the burner tube 10 to make full use of the high-temperature heat in the smoke.

[0050] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. A regulating device for making full use of the heat of flue gas from a regenerative heating furnace, characterized in that: The invention comprises a three-way sealed box (1), wherein an inverted T-shaped partition (2) is welded inside the three-way sealed box (1), and the inverted T-shaped partition (2) divides the inside of the three-way sealed box (1) into a gas chamber (3), a smoke chamber (4) and a transition chamber (5); the outer wall of the three-way sealed box (1) is provided with a first opening (6), a second opening (7) and a third opening (8), and the first opening (6), the second opening (7) and the third opening (8) are respectively connected to the gas chamber (3), the transition chamber (5) and the smoke chamber (4); the outer sides of the first opening (6), the second opening (7) and the third opening (8) are respectively connected to a gas supply pipe (9), a burner pipe (10) and a smoke exhaust pipe (11) through flanges; Circular through-channels are provided on both side transverse plates of the inverted T-shaped partition (2); the gas chamber (3) and the smoke chamber (4) are respectively connected to the transition chamber (5) through the two circular through-channels; a first cylinder (12) and a second cylinder (13) are respectively provided on the top of the gas chamber (3) and the smoke chamber (4); and the output ends of the first cylinder (12) and the second cylinder (13) are both drivingly connected to a plugging assembly (14); the two plugging assemblies (14) are respectively used for opening and closing the two circular through-channels; The plugging assembly (14) comprises a conical valve flap (141) and an elastic protective gasket (142), wherein the elastic protective gasket (142) is sleeved on both sides of the circular through-channel and covers the inner wall thereof, and the first cylinder (12) and the second cylinder (13) are respectively connected to the two conical valve flaps (141) in a transmission manner, and the conical valve flap (141) matches the inner top end of the elastic protective gasket (142); The input ends of the first cylinder (12) and the second cylinder (13) are respectively connected to a first pneumatic mechanism (15) and a second pneumatic mechanism (16) for controlling the kinetic energy of the first cylinder (12) and the second cylinder (13); the connection ends of the first pneumatic mechanism (15) and the second pneumatic mechanism (16) are electrically connected to a control machine (17) for controlling the operation of the first cylinder (12) and the second cylinder (13) to achieve alternating lifting and lowering of the two blocking components (14).

2. The regulating device for fully utilizing the heat of flue gas from a regenerative heating furnace according to claim 1, characterized in that: The output ends of the first cylinder (12) and the second cylinder (13) are both fixedly connected to a short rod (18), and the conical valve flap (141) is mounted on the short rod (18) via a clamping assembly (19), so that the conical valve flap (141) can be replaced.

3. The regulating device for fully utilizing the heat of flue gas from a regenerative heating furnace according to claim 2, characterized in that: The clamping assembly (19) comprises an upper clamping plate (191) and a lower clamping plate (192), the upper clamping plate (191) and the lower clamping plate (192) being snap-fitted and connected to two sides of the conical valve flap (141), and the short rod (18) passes through the combined structure of the upper clamping plate (191), the lower clamping plate (192) and the conical valve flap (141).

4. The regulating device for fully utilizing the heat of flue gas from a regenerative heating furnace according to claim 3 is characterized in that: An inner buckle ring (193) is integrally provided at the axis center of the bottom of the upper clamping plate (191), and an outer buckle ring (194) is provided at the axis center of the top of the lower clamping plate (192), wherein the inner buckle ring (193) is buckled inside the outer buckle ring (194), and the outer buckle ring (194) is plugged into the axis center through hole of the conical valve flap (141).

5. The regulating device for fully utilizing the heat of flue gas from a regenerative heating furnace according to claim 3, characterized in that: A sleeve pile (195) is integrally provided at the axis center of the top of the upper clamping plate (191), and the sleeve pile (195) matches the output end of the first cylinder (12) or the second cylinder (13). A first plug hole (196) is passed through the outer side of the output end of the first cylinder (12) or the second cylinder (13), and a second plug hole (197) is passed through the outer side of the sleeve pile (195). The first plug hole (196) and the second plug hole (197) are butt-jointed and are plugged with a pin.

6. The regulating device for fully utilizing the heat of flue gas from a regenerative heating furnace according to claim 3, characterized in that: The diameter of the short rod (18) is smaller than the diameter of the output end of the first cylinder (12) or the second cylinder (13); An adjustment notch (20) is provided on the surface of the short rod (18), and a wedge-shaped plate (21) is inserted into the adjustment notch (20) for tightening the combined structure of the upper clamping plate (191), the lower clamping plate (192) and the conical valve flap (141).

7. The regulating device for fully utilizing the heat of flue gas from a regenerative heating furnace according to claim 1, characterized in that: The first cylinder (12) and the second cylinder (13) are both fixedly mounted on the outer wall of the three-way sealing box (1), and the output ends of the first cylinder (12) and the second cylinder (13) penetrate the three-way sealing box (1), and linear bearings (22) are mounted between the output ends of the first cylinder (12) and the second cylinder (13) and the through holes.

8. The regulating device for fully utilizing the heat of flue gas from a regenerative heating furnace according to claim 7, characterized in that: A sealing gasket (23) and a spring member (24) are movably sleeved on the outer sides of the output ends of the first cylinder (12) and the second cylinder (13), and the spring member (24) is located between the sealing gasket (23) and the conical valve flap (141).

9. The regulating device for fully utilizing the heat of flue gas from a regenerative heating furnace according to claim 8, characterized in that: The conical valve flap (141), the elastic protective gasket (142) and the sealing gasket (23) are all made of high-temperature resistant rubber material.

10. The regulating device for fully utilizing the heat of flue gas from a regenerative heating furnace according to claim 1, characterized in that: The input end and output end of the control machine (17) are respectively provided with an A / D converter and a D / A converter, a temperature sensor (25) is installed in the transition chamber (5), the temperature sensor (25) is electrically connected to the A / D converter, the first pneumatic mechanism (15) and the second pneumatic mechanism (16) are both electrically connected to the D / A converter, and a display screen (26) is provided at the connection end of the control machine (17).

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