Glass melting furnace combustion-supporting fan space temperature collection device and heat collection method

Abstract

The present invention discloses a spatial temperature collection device for a combustion-supporting blower of a glass melting furnace and a heat collection method thereof, comprising a heat collection component and two groups of blowers, the two groups of blowers being respectively arranged at the front and rear sides of the bottom of the heat collection component, the two groups of blowers being connected to each other on the outside with an air duct, the outer side of the air duct being laterally provided with a positioning tube and a heat storage tube, the outer side of the heat storage tube being coaxially sleeved with an insulating tube; the two groups of blowers being provided with air inlet covers on opposite sides thereof, and the heat collection component comprising a bottom pipe longitudinally connecting the two groups of air inlet covers in sequence. The beneficial effect is that the present invention connects the heat collection component at the air inlet end of the combustion-supporting blower, extends to the top of the glass melting furnace through the air collecting hopper of the heat collection component, utilizes the heat diffused outward from the top wall of the glass melting furnace to heat the outside air, and then discharges it into the air collecting hopper, thereby absorbing the air on the top side of the glass melting furnace, so as to recover the wasted heat after diffusion, thereby improving the heat recovery effect, thereby facilitating the adjustment of the glass furnace temperature according to the different stages of glass melting, and saving energy.

Description

Technical Field

[0001] The present invention relates to the field of glass production equipment, and in particular to a temperature collection device for a combustion-supporting fan space of a glass melting furnace and a heat collection method thereof. Background Art

[0002] In the process of melting glass in a glass melting furnace according to the temperature curve, there are five stages from the batch material entering the furnace to the formed glass liquid. Each stage has strict temperature requirements and needs to go through a certain period of melting process. The five stages are: 1. Silicate formation stage. After the batch material enters the melting furnace through the feeder, a series of physical and chemical reactions occur in the temperature range of 800-1000℃. Most of the decomposed gases escape and become an opaque sinter composed of silicate and silicon dioxide; 2. Glass formation stage. When the temperature rises to 1200℃, the low eutectic in the sinter is The material begins to melt, and as the temperature continues to rise, it becomes a glass liquid containing a large number of visible bubbles and streaks; 3. In the glass liquid clarification stage, when the temperature reaches 1400-1500℃, all bubbles are discharged; 4. In the glass liquid homogenization stage, when the glass liquid continues to maintain the temperature of the clarification stage, due to convection, diffusion, dissolution and other effects, the streaks in the glass liquid gradually disappear. At the end of homogenization, the temperature is lower than that of the clarification stage; 5. In the glass liquid cooling stage, the clarified and homogenized glass liquid is evenly cooled so that the glass liquid has the viscosity required for forming. The temperature at the end of the cooling stage is about 1100℃.

[0003] Since the temperature control in the glass melting furnace depends on the combustion temperature of the fuel, and combustion air needs to be continuously input during the combustion process, and since the combustion air is usually extracted directly from the external environment, in order to avoid a significant reduction in the melting furnace temperature after the combustion air is input and affecting glass production, a heat storage chamber is usually set on the air duct where the combustion fan inputs the glass melting furnace to recover the waste heat of the combustion flue gas. The waste heat of the flue gas is transferred to the combustion air through the checker bricks of the heat storage chamber. In order to increase the residence time of the waste heat of the flue gas in the heat storage chamber and thus improve the heating effect, the volume of the heat storage chamber can only be continuously increased, which takes up a large space. The glass melting furnace needs to continuously adjust the temperature according to the five stages of product production during use. The current fixed heat storage method cannot adjust the furnace temperature by changing the combustion air temperature, but can only adjust the temperature by changing the fuel combustion amount. The energy waste is serious, the heat exchange recovery efficiency outside the furnace is low, and the control is difficult. Summary of the Invention

[0004] The purpose of the present invention is to provide a glass melting furnace combustion-supporting fan space temperature collection device and its heat collection method in order to solve the above problems. The heat collecting component is connected to the air inlet end of the combustion-supporting fan, and the wind collecting hopper of the heat collecting component extends to the top of the glass melting furnace. The heat diffused outward from the top wall of the glass melting furnace is used to heat the outside air and then discharged into the wind collecting hopper, thereby absorbing the air on the top side of the glass melting furnace to recover the wasted heat after diffusion, improve the heat recovery effect, and facilitate the adjustment of the glass furnace temperature according to the different stages of glass melting, saving energy. See the following for details.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] The glass melting furnace combustion-supporting fan space temperature collection device provided by the present invention includes a heat collection component and two sets of air supply fans, the two sets of air supply fans are respectively arranged at the front and rear sides of the bottom of the heat collection component, and the two sets of air supply fans are connected to the outside of a common air duct, and a positioning tube and a heat storage tube are sequentially arranged laterally on the outside of the air duct, and an insulating tube is coaxially sleeved on the outside of the heat storage tube;

[0007] Air inlet covers are provided on opposite sides of the two groups of air supply fans. The heat collecting assembly includes a bottom pipe longitudinally connecting the two groups of air inlet covers in sequence. The top side of the bottom pipe is vertically connected to a vertical pipe. A wind collecting hopper with a vertical through-structure is provided above the vertical pipe. The top opening of the wind collecting hopper is covered with a filter, and a bendable corrugated pipe is connected between the wind collecting hopper and the vertical pipe.

[0008] Preferably, butterfly valves for controlling the opening and closing state of the internal passage of the bottom pipe are provided at the connection points between the two ends of the bottom pipe and the air inlet cover, and an air outlet cover is provided on the outside of the air supply fan.

[0009] Preferably, the air duct is a "human" shaped hollow structure, and the forked ends of the air duct on the same side are respectively connected to the air outlet hoods of the two groups of air supply fans. A rack for supporting and installing the air supply fan is provided under the air supply fan, and a motor serving as a driving component of the air supply fan is fixed to the top side of the rack outside the bottom tube.

[0010] Preferably, both ends of the positioning tube are fixed with outwardly extending annular retaining edges, and the positioning tube is respectively connected to the air duct and the heat storage tube through two sets of retaining edges. The heat storage tube is fixed with an inner joint near one end of the positioning tube, and the inner joint is fixedly connected to the retaining edge at the end of the positioning tube by bolts.

[0011] Preferably, a circular outer joint is fixed to the outer side of one end of the heat storage tube away from the positioning tube, and a cylindrical heat storage chamber is formed between the outer joint, the inner joint, the heat storage tube and the insulation tube.

[0012] Preferably, two exhaust pipes are arranged transversely at the bottom of the insulation tube, both of which are inserted into the heat storage chamber at their top ends, and the two exhaust pipes serve as exhaust gas inlet pipes and exhaust gas outlet pipes respectively. Spiral leaves extending spirally along the length direction of the heat storage chamber are fixed to the outside of the heat storage tubes, the outer sides of the spiral leaves are tightly pressed against the inner wall of the insulation tube, and multiple groups of air holes are distributed in the middle of the spiral leaves.

[0013] Preferably, a storage cover is fixed to the outside of the middle part of the positioning tube, and an adjustment component is provided on the outside of the air duct. The adjustment component includes a transverse actuator with both ends respectively fixed to the upper and lower sides of the outside of the air duct. The transverse actuator can be a cylinder, an oil cylinder or an electric push rod. The telescopic end of the transverse actuator passes through the storage cover horizontally, and the telescopic ends of the two groups of transverse actuators are fixed with a synchronization ring mounted on the outside of the positioning tube.

[0014] Preferably, a plurality of support rods are fixed on the outside of the synchronization ring and penetrate into the heat storage chamber transversely, and a plurality of groups of sealing plates corresponding to the air holes are fixed on the outside of the support rods. A circular piston disk is fixed on the telescopic end of the transverse actuator inside the storage cover, and the piston disk is laterally slidably sealed with the inside of the storage cover.

[0015] Preferably, the insulation cylinder is a double-layer hollow shell with a cavity inside, an air pipe connected to the storage cover is provided at the top of the insulation cylinder, and a coolant pipe connected to the storage cover is provided at the bottom of the insulation cylinder, and the coolant pipe and the air pipe are respectively provided on both sides of the piston disk.

[0016] The heat collection method of the glass melting furnace combustion-supporting fan space temperature collection device comprises the following steps:

[0017] a. The air collecting scoop above the riser is set just above the glass melting furnace. The air in the surrounding environment heated by the waste heat of the glass melting furnace enters the air supply fan along the air collecting scoop, bellows, riser and bottom pipe. The air supply fan draws the hot air above the glass melting furnace along the air duct and inputs it into the heat storage tube. The external joint at the outer end of the heat storage tube is connected to the heating fuel combustion position of the glass melting furnace, thereby collecting the hot air above the glass melting furnace and using the combustion-supporting fan to introduce air temperature to improve the heating efficiency of the glass melting furnace.

[0018] b. Connect a set of exhaust pipes near the external joint to the exhaust gas generated at the combustion position of the glass melting furnace, and input the high-temperature exhaust gas into the heat storage chamber along the exhaust pipe. At this time, the exhaust gas is spirally transported in the heat storage chamber along the spiral blades extending in a spiral shape, thereby heating the combustion air in the heat storage pipe through the exhaust gas, thereby utilizing the residual heat of the exhaust gas and promoting the preheating speed of the combustion air;

[0019] c. When it is necessary to slow down the heating speed of the combustion air, the lateral actuator drives the synchronization ring and multiple support rods to move horizontally, and the sealing plate on the outside of the support rod is shifted horizontally to the air holes on the spiral blade. At this time, the closed state of the air holes is released, so that the spiral output channel of the waste heat exhaust gas is replaced by a horizontal direct output channel, thereby shortening the residence time of the waste heat exhaust gas in the heat storage chamber, thereby slowing down the heating speed of the combustion air, preventing the temperature of the glass melting furnace from exceeding the normal range, and facilitating the control of the temperature of the glass melting furnace to be in a normal state;

[0020] d. When the lateral actuator drives the synchronizer ring, the support rod and the sealing plate to move horizontally to open the air hole, the telescopic end of the lateral actuator drives the piston disc to move horizontally synchronously, and then uses the piston disc to inject the coolant on the side of the coolant pipe in the storage cover into the inner cavity of the heat insulation cylinder, so as to accelerate the outward conduction speed of the temperature inside the heat storage cavity through the coolant, thereby accelerating the cooling process. Later, when it is necessary to increase the temperature of the combustion air, the lateral actuator drives the synchronizer ring, the support rod, the sealing plate and the piston disc to reset, and uses the sealing plate to close the air hole again. At this time, the waste heat exhaust gas is discharged along the spiral The heat storage chamber output is extended, thereby extending the residence speed of the waste heat exhaust gas in the heat storage chamber, and continuing to heat the combustion air inside the heat storage tube through the waste heat exhaust gas. At this time, the piston disc moves horizontally and resets, and the piston disc cooperates with the coolant pipe to again suck the coolant in the internal cavity of the insulation cylinder into the storage cover, and the air in the storage cover on one side of the air pipe is injected into the insulation cylinder along the air pipe, realizing the exchange of air and coolant, thereby improving the insulation effect of the insulation cylinder, making it easier to heat the combustion air in this state, and further improving the convenience of temperature control of the combustion air in the glass melting furnace.

[0021] The beneficial effect is that the present invention connects the heat collecting assembly to the air inlet end of the combustion-supporting blower, and extends the heat collecting hopper of the heat collecting assembly to the top of the glass melting furnace. The heat diffused outward from the top wall of the glass melting furnace is used to heat the outside air and then discharged into the heat collecting hopper, thereby absorbing the air on the top side of the glass melting furnace to recover the wasted heat after diffusion, thereby improving the temperature collection effect.

[0022] In addition, an insulating cylinder is provided to cooperate with the heat storage tube to form an adjustable combustion exhaust gas heat storage structure. The spiral blades are used to extend the heat exchange time of the combustion exhaust gas in the heat storage chamber, thereby further heating the combustion-supporting air inside the heat storage tube and improving the heat recovery effect.

[0023] And when the furnace temperature needs to be adjusted, the opening and closing states of the air holes on the spiral blades can be adjusted to change the heating effect of the combustion air and thus change the temperature of the combustion air input into the glass furnace, thereby facilitating the adjustment of the glass furnace temperature according to different stages of glass melting, and assisting in controlling the temperature by increasing or decreasing fuel, thus saving energy;

[0024] At the same time, when cooling is required, the air holes are opened and the piston disc can be used to move horizontally to inject coolant into the insulation tube along the coolant pipe. The heat conductivity of the insulation tube is changed by the exchange of coolant and air, thereby changing the heat preservation capacity of the insulation tube under heating or cooling working conditions, further improving the accuracy and convenience of combustion air temperature adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 It is a main structural diagram of the present invention;

[0027] Figure 2 It is a three-dimensional structural diagram of the present invention;

[0028] Figure 3 It is a partial structural breakdown diagram of the present invention;

[0029] Figure 4 It is a disassembled diagram of the overall structure of the present invention;

[0030] Figure 5 It is a three-dimensional structural diagram of the adjustment component of the present invention;

[0031] Figure 6 It is a three-dimensional structural diagram of the heat insulation cylinder of the present invention;

[0032] Figure 7 It is a front cross-sectional view of the present invention.

[0033] The following are the descriptions of the reference numerals:

[0034] 1. Air supply fan; 101. Air inlet cover; 102. Frame; 103. Motor; 104. Air outlet cover; 2. Heat collection assembly; 201. Bottom pipe; 202. Vertical pipe; 203. Bellows; 204. Air collecting scoop; 205. Filter; 3. Air duct; 4. Positioning pipe; 5. Heat storage tube; 501. External joint; 502. Internal joint; 503. Spiral blade; 503a. Air hole; 6. Storage cover; 7. Adjustment assembly; 701. Transverse actuator; 702. Piston disc; 703. Synchronizing ring; 704. Strut; 704a. Sealing plate; 8. Heat insulation tube; 801. Receiving hole; 9. Exhaust pipe; 10. Air pipe; 11. Coolant pipe; 12. Heat storage chamber. DETAILED DESCRIPTION

[0035] To make the objectives, technical solutions, and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other implementations obtained by those of ordinary skill in the art without inventive effort are within the scope of protection of the present invention.

[0036] See also Figure 1-Figure 7 As shown, the present invention provides a glass melting furnace combustion-supporting fan space temperature collection device, including a heat collection component 2 and two sets of air supply fans 1. The air supply fans 1 are centrifugal ventilation combustion-supporting fans commonly used in the field, with a power selected to be 90KW. The two sets of air supply fans 1 are respectively arranged at the front and rear sides of the bottom of the heat collection component 2. The two sets of air supply fans 1 are connected to the outside of a common air duct 3. A positioning tube 4 and a heat storage tube 5 are sequentially arranged laterally on the outside of the air duct 3. An insulating tube 8 is coaxially sleeved on the outside of the heat storage tube 5. A combustion flue gas waste heat recovery cavity is formed between the insulating tube 8 and the heat storage tube 5.

[0037] Air inlet covers 101 are provided on opposite sides of the two groups of air supply fans 1. The heat collecting assembly 2 includes a bottom pipe 201 longitudinally connecting the two groups of air inlet covers 101 in sequence. The top side of the bottom pipe 201 is vertically connected to a vertical pipe 202. A wind collecting hopper 204 with a vertical through structure is provided above the vertical pipe 202. The top opening of the wind collecting hopper 204 is covered with a filter 205 to prevent large particles of impurities from entering the air supply fan 1 to damage the equipment and affect the subsequent fuel combustion of the glass melting furnace. A bendable bellows 203 is connected between the wind collecting hopper 204 and the vertical pipe 202, which is convenient for bending the bellows 203 to guide the wind collecting hopper 204 to extend to a position above the glass melting furnace to collect hot air above the kiln body for use as combustion-supporting air.

[0038] As an optional embodiment, butterfly valves for controlling the opening and closing state of the internal passage of the bottom pipe 201 are provided at the connection points between the two ends of the bottom pipe 201 and the air inlet cover 101, so that the two sets of air supply fans 1 can be set as one for use and one for backup, thereby alternating the use of the two sets of air supply fans 1 to ensure continuous operation of the kiln. An air outlet cover 104 is provided on the outside of the air supply fans 1. The air duct 3 is a hollow structure in the shape of a "human". The bifurcated ends of the air duct 3 on the same side are respectively connected to the air outlet covers 104 of the two sets of air supply fans 1. A frame 102 for supporting and installing the air supply fans 1 is provided below the air supply fans 1. A motor 103 serving as a driving component of the air supply fans 1 is fixed on the top side of the frame 102 outside the bottom pipe 201.

[0039] Both ends of the positioning tube 4 are fixed with an outwardly extending annular retaining edge, and the positioning tube 4 is connected to the air duct 3 and the heat storage tube 5 respectively through two sets of retaining edges. An inner joint 502 is fixed to the end of the heat storage tube 5 close to the positioning tube 4. The inner joint 502 is fixed to the retaining edge of the end of the positioning tube 4 by bolts. An annular outer joint 501 is fixed to the outer side of the end of the heat storage tube 5 away from the positioning tube 4. A cylindrical heat storage chamber 12 is formed between the outer joint 501, the inner joint 502, the heat storage tube 5 and the insulation tube 8.

[0040] Two exhaust pipes 9 are arranged horizontally at the bottom of the heat insulation tube 8, and the top ends of the two exhaust pipes 9 are inserted into the heat storage chamber 12, and the two exhaust pipes 9 serve as the exhaust inlet pipe and the exhaust outlet pipe respectively. The exhaust inlet pipe is close to the outer end side. A spiral leaf 503 is fixed on the outside of the heat storage tube 5 and extends spirally along the length direction of the heat storage chamber 12. The outer side of the spiral leaf 503 is tightly pressed against the inner wall of the heat insulation tube 8. The spiral leaf 503 is used to extend the flow channel of the residual heat flue gas after combustion inside the heat storage chamber 12 to improve the heat exchange effect. In addition, multiple groups of wind turbines are evenly distributed in the middle of the spiral leaf 503. Hole 503a, a storage cover 6 is fixed to the outside of the middle of the positioning tube 4, and an adjustment component 7 is provided on the outside of the air duct 3. The adjustment component 7 includes a transverse actuator 701 whose two ends are respectively fixed to the upper and lower sides of the outside of the air duct 3. The transverse actuator 701 can be a pneumatic cylinder, an oil cylinder, or an electric push rod, preferably an oil cylinder, which can meet the needs of larger equipment. The telescopic end of the transverse actuator 701 transversely penetrates the storage cover 6. The telescopic ends of the two sets of transverse actuators 701 are fixed with a synchronization ring 703 sleeved on the outside of the positioning tube 4;

[0041] A plurality of struts 704 are fixed to the outside of the synchronization ring 703, which are laterally inserted into the heat storage chamber 12, and a plurality of sealing plates 704a corresponding to the closed air holes 503a are fixed to the outside of the plurality of struts 704. The sealing plates 704a are disc structures that can be inserted into the air holes 503a to close the air holes 503a. The telescopic end of the transverse actuator 701 inside the storage cover 6 is fixed with a ring-shaped piston disk 702. The piston disk 702 is laterally slidably sealed with the inside of the storage cover 6. The insulation tube 8 is a double-layer hollow shell with a cavity inside. An air pipe 10 connected to the storage cover 6 is provided on the top of the insulation tube 8, and a coolant pipe 11 connected to the storage cover 6 is provided at the bottom of the insulation tube 8. The coolant pipe 11 and The air pipes 10 are respectively arranged on both sides of the piston disc 702. Coolant is injected into the storage cover 6 separated by the piston disc 702 and close to the coolant pipe 11. The coolant has better thermal conductivity than air. When it is necessary to reduce the temperature of the combustion-supporting air to control the air inside the glass furnace, the coolant can be injected into the insulation tube 8 while the air hole 503a is opened, thereby accelerating the heat conduction speed of the insulation tube 8 and stopping the continuous input of combustion flue gas into the heat storage chamber 12. After the flue gas in the heat storage chamber 12 is directly discharged, the insulation tube 8 injected with coolant is used as a heat conduction and cooling structure to conduct heat and cool the combustion-supporting air in the heat storage tube 5, thereby facilitating the control of the temperature of the combustion-supporting air inside the heat storage tube 5.

[0042] The heat collection method of a glass melting furnace combustion-supporting fan space temperature collection device comprises the following steps:

[0043] a. The air collecting scoop 204 above the vertical pipe 202 is arranged directly above the glass melting furnace. The ambient air heated by the waste heat of the glass melting furnace enters the interior of the air supply fan 1 along the air collecting scoop 204, the bellows 203, the vertical pipe 202 and the bottom pipe 201. The air supply fan 1 draws the hot air above the glass melting furnace along the air duct 3 and inputs it into the heat storage tube 5. The external connector 501 at the outer end of the heat storage tube 5 is connected to the heating fuel combustion position of the glass melting furnace, thereby collecting the hot air above the glass melting furnace and using the combustion-supporting fan to introduce air temperature to improve the heating efficiency of the glass melting furnace.

[0044] b. Connect a set of exhaust pipes 9 near the external connector 501 to the combustion exhaust gas generated at the combustion position of the glass melting furnace, and input the high-temperature exhaust gas into the heat storage chamber 12 along the exhaust pipes 9. At this time, the exhaust gas is spirally transported in the heat storage chamber 12 along the spiral blades 503 extending in a spiral shape, thereby heating the combustion-supporting air in the heat storage pipe 5 through the exhaust gas, thereby utilizing the residual heat of the exhaust gas and accelerating the preheating speed of the combustion-supporting air;

[0045] c. When the heating speed of the combustion air needs to be slowed down, the synchronizing ring 703 and the plurality of struts 704 are driven to move horizontally by the transverse actuator 701, so that the sealing plate 704a on the outer side of the strut 704 and the air hole 503a on the spiral blade 503 are shifted horizontally. At this time, the closed state of the air hole 503a is released, so that the spiral output channel of the waste heat exhaust gas is replaced by a transverse direct output channel, thereby shortening the residence time of the waste heat exhaust gas in the heat storage chamber 12, thereby slowing down the heating speed of the combustion air, preventing the temperature of the glass melting furnace from exceeding the normal range, and facilitating the control of the temperature of the glass melting furnace to be in a normal state;

[0046] d. When the lateral actuator 701 drives the synchronizer ring 703, the strut 704 and the sealing plate 704a to move horizontally, thereby opening the air hole 503a, the telescopic end of the lateral actuator 701 drives the piston disc 702 to move horizontally synchronously, and then uses the piston disc 702 to inject the coolant on the side of the coolant pipe 11 in the storage cover 6 into the internal cavity of the heat insulation cylinder 8, thereby accelerating the outward conduction speed of the temperature inside the heat storage chamber 12 through the coolant, thereby accelerating the cooling process. Later, when it is necessary to increase the temperature of the combustion air, the lateral actuator 701 drives the synchronizer ring 703, the strut 704, the sealing plate 704a and the piston disc 702 to reset, and uses the sealing plate 704a to close the air hole again. 503a is closed, and the waste heat exhaust gas is output along the spiral heat storage chamber 12 at this time, thereby extending the residence speed of the waste heat exhaust gas in the heat storage chamber 12, and continuing to heat the combustion air inside the heat storage tube 5 through the waste heat exhaust gas, and at this time the piston disc 702 is horizontally moved back to its original position, and the piston disc 702 is used to cooperate with the coolant pipe 11 to again suck the coolant in the internal cavity of the insulation tube 8 into the storage cover 6, and the air in the storage cover 6 on one side of the air pipe 10 is injected into the insulation tube 8 along the air pipe 10, realizing the exchange action of air and coolant, thereby improving the insulation effect of the insulation tube 8, facilitating the heating of the combustion air in this state, and further improving the convenience of temperature control of the combustion air of the glass melting furnace.

[0047] By connecting the heat collecting assembly 2 at the air inlet end of the combustion-supporting blower, and extending the air collecting hopper 204 of the heat collecting assembly 2 to the top of the glass melting furnace, the heat diffused outward from the top wall of the glass melting furnace is used to heat the outside air and then discharged into the air collecting hopper 204, thereby absorbing the air on the top side of the glass melting furnace to recover the wasted heat after diffusion, thereby improving the temperature collection effect;

[0048] In addition, a heat-insulating cylinder 8 is provided to cooperate with the heat storage tube 5 to form an adjustable combustion exhaust gas heat storage structure. The spiral blades 503 are used to extend the heat exchange time of the combustion exhaust gas in the heat storage chamber 12, thereby further heating the combustion-supporting air inside the heat storage tube 5 and improving the heat recovery effect.

[0049] When the furnace temperature needs to be adjusted, the opening and closing states of the air holes 503a on the spiral blades 503 can be adjusted to change the heating effect of the combustion-supporting air and thus change the temperature of the combustion-supporting air input into the glass furnace, thereby facilitating the adjustment of the glass furnace temperature according to different stages of glass melting, assisting in temperature control by increasing or decreasing fuel, and saving energy.

[0050] At the same time, when the air hole 503a is opened during the cooling process, the piston disk 702 can be used to move horizontally to inject the coolant into the insulation tube 8 along the coolant pipe 11. The thermal conductivity of the insulation tube 8 is changed by the exchange of coolant and air, thereby changing the thermal insulation capacity of the insulation tube 8 under the heating or cooling working state, further improving the accuracy and convenience of the combustion air temperature adjustment.

[0051] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. Glass melting furnace combustion fan space temperature collection device, characterized by: The invention comprises a heat collection component (2) and two groups of air supply fans (1), wherein the two groups of air supply fans (1) are respectively arranged at the front and rear sides of the bottom of the heat collection component (2), and the outsides of the two groups of air supply fans (1) are connected to a common air duct (3), and the outside of the air duct (3) is provided with a positioning tube (4) and a heat storage tube (5) in sequence in a transverse direction, and the heat storage tube (5) is provided with a heat insulation tube (8) on the outside of the coaxial sleeve; An air inlet cover (101) is provided on opposite sides of the two groups of air supply fans (1), and the heat collecting assembly (2) comprises a bottom pipe (201) longitudinally connected to the two groups of air inlet covers (101) in sequence, the top side of the bottom pipe (201) is vertically connected to a vertical pipe (202), a vertical through-structured air collecting hopper (204) is provided above the vertical pipe (202), the top opening of the air collecting hopper (204) is covered with a filter (205), and a bendable corrugated pipe (203) is connected between the air collecting hopper (204) and the vertical pipe (202); Both ends of the positioning tube (4) are fixed with annular retaining edges extending outward, and the positioning tube (4) is respectively connected to the air duct (3) and the heat storage tube (5) through two sets of retaining edges. An inner joint (502) is fixed to one end of the heat storage tube (5) close to the positioning tube (4), and the inner joint (502) is fixedly connected to the retaining edge at the end of the positioning tube (4) by bolts. A circular outer joint (501) is fixed to the outer side of one end of the heat storage tube (5) away from the positioning tube (4), and a cylindrical heat storage chamber (12) is formed between the outer joint (501), the inner joint (502), the heat storage tube (5) and the heat insulation tube (8); Two exhaust pipes (9) are transversely arranged at the bottom of the heat-insulating tube (8), both of which have their top ends inserted into the heat storage chamber (12), and the two exhaust pipes (9) serve as an exhaust inlet pipe and an exhaust outlet pipe, respectively. A spiral blade (503) extending spirally along the length direction of the heat storage chamber (12) is fixed on the outside of the heat storage tube (5), the outside of the spiral blade (503) is tightly pressed against the inner wall of the heat-insulating tube (8), and a plurality of groups of air holes (503a) are uniformly distributed in the middle of the spiral blade (503); A storage cover (6) is fixed on the outside of the middle of the positioning tube (4), and an adjustment component (7) is provided on the outside of the air duct (3). The adjustment component (7) includes a transverse actuator (701) whose two ends are respectively fixed to the upper and lower sides of the outside of the air duct (3). The transverse actuator (701) is an air cylinder, an oil cylinder or an electric push rod. The telescopic end of the transverse actuator (701) passes through the storage cover (6) transversely. The telescopic ends of the two groups of transverse actuators (701) are fixed with a synchronization ring (703) sleeved on the outside of the positioning tube (4); A plurality of support rods (704) that laterally penetrate into the heat storage chamber (12) are fixed on the outside of the synchronization ring (703), and a plurality of sealing plates (704a) that correspondingly close the air holes (503a) are fixed on the outside of the plurality of support rods (704). A circular piston disc (702) is fixed to the telescopic end of the transverse actuator (701) inside the storage cover (6), and the piston disc (702) and the inside of the storage cover (6) are laterally slidably sealed. The insulating cylinder (8) is a double-layer hollow shell with a cavity inside. An air pipe (10) connected to the storage cover (6) is provided at the top of the insulating cylinder (8), and a coolant pipe (11) connected to the storage cover (6) is provided at the bottom of the insulating cylinder (8). The coolant pipe (11) and the air pipe (10) are respectively provided on both sides of the piston disc (702).

2. The glass melting furnace combustion-supporting fan space temperature collection device according to claim 1, characterized in that: The connection points between the two ends of the bottom pipe (201) and the air inlet cover (101) are both provided with butterfly valves for controlling the opening and closing state of the internal channel of the bottom pipe (201), and an air outlet cover (104) is provided outside the air supply fan (1).

3. The glass melting furnace combustion-supporting fan space temperature collection device according to claim 2, characterized in that: The air duct (3) is a "human"-shaped hollow structure. The forked ends of the air duct (3) on the same side are respectively connected to the air outlet covers (104) of the two groups of air supply fans (1). A frame (102) supporting and installing the air supply fans (1) is provided below the air supply fans (1). A motor (103) serving as a driving component of the air supply fans (1) is fixed to the top side of the frame (102) outside the bottom tube (201).

4. The heat collection method of the glass melting furnace combustion-supporting fan space temperature collection device according to claim 3, characterized in that: The following steps are involved: a. The air collecting scoop (204) above the vertical pipe (202) is arranged at a position directly above the glass melting furnace. The air in the surrounding environment heated by the waste heat of the glass melting furnace enters the interior of the air supply fan (1) along the air collecting scoop (204), the bellows (203), the vertical pipe (202) and the bottom pipe (201). The hot air above the glass melting furnace is sucked by the air supply fan (1) and input into the heat storage pipe (5) along the air duct (3). The external joint (501) at the outer end of the heat storage pipe (5) is connected to the heating fuel combustion position of the glass melting furnace, thereby collecting the hot air above the glass melting furnace and using the combustion-supporting blower to introduce the air temperature to improve the heating efficiency of the glass melting furnace; b. Connecting a set of exhaust pipes (9) near the external connector (501) to the combustion exhaust gas generated at the combustion position of the glass melting furnace, and inputting the high-temperature exhaust gas into the heat storage chamber (12) along the exhaust pipe (9). At this time, the combustion exhaust gas is spirally transported in the heat storage chamber (12) along the spiral blades (503) extending in a spiral shape, thereby heating the combustion-supporting air in the heat storage pipe (5) through the combustion exhaust gas, thereby utilizing the residual heat of the combustion exhaust gas and promoting the preheating speed of the combustion-supporting air; c. When the heating speed of the combustion-supporting air needs to be slowed down, the synchronous ring (703) and the plurality of support rods (704) are driven to move horizontally by the horizontal actuator (701), and the sealing plate (704a) outside the support rod (704) and the air hole (503a) on the spiral blade (503) are moved horizontally and staggered. At this time, the closed state of the air hole (503a) is released, so that the spiral output channel of the waste heat exhaust gas is replaced by a horizontal direct output channel, thereby shortening the residence time of the waste heat exhaust gas in the heat storage chamber (12), thereby slowing down the heating speed of the combustion-supporting air, preventing the temperature of the glass melting furnace from exceeding the normal range, and facilitating the control of the temperature of the glass melting furnace to be in a normal state; d. When the lateral actuator (701) drives the synchronous ring (703), the support rod (704) and the sealing plate (704a) to move horizontally, thereby opening the air hole (503a), the telescopic end of the lateral actuator (701) drives the piston disc (702) to move horizontally synchronously, and then uses the piston disc (702) to inject the coolant on the side of the storage cover (6) connected to the coolant pipe (11) into the internal cavity of the insulation cylinder (8), thereby accelerating the outward conduction speed of the internal temperature of the heat storage chamber (12) through the coolant, thereby accelerating the cooling process. Afterwards, when it is necessary to increase the temperature of the combustion-supporting air, the lateral actuator (701) drives the synchronous ring (703), the support rod (704), the sealing plate (704a) and the piston disc (702) to reset, and uses the sealing plate (704a) to re-open. The air hole (503a) is closed again, and the waste heat exhaust gas is output along the spiral heat storage chamber (12), thereby extending the residence speed of the waste heat exhaust gas in the heat storage chamber (12), and the combustion air inside the heat storage tube (5) is continuously heated by the waste heat exhaust gas. At this time, the piston disc (702) is horizontally moved and reset, and the piston disc (702) is used to cooperate with the coolant pipe (11) to again suck the coolant in the cavity inside the insulation tube (8) into the storage cover (6), and the air in the storage cover (6) on one side of the air pipe (10) is injected into the insulation tube (8) along the air pipe (10), realizing the exchange of air and coolant, thereby improving the heat insulation effect of the insulation tube (8), facilitating the heating of the combustion air in this state, and further improving the convenience of temperature control of the combustion air in the glass melting furnace.

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