Heat exchange device for high-temperature flue gas emission purification of glass furnace

Abstract

The utility model relates to glass furnace kiln technical field especially relates to a kind of heat exchange devices for glass furnace kiln high-temperature flue gas emission purification, including exhaust main pipe and deflector, deflector is provided with multiple and fixed in exhaust main pipe, for extending the flow distance of high-temperature flue gas in exhaust main pipe, enhance heat exchange efficiency. Exhaust main pipe is fixed with multiple heat conduction plates, heat conduction plate passes through exhaust main pipe and is located between adjacent two deflectors, can absorb the high-temperature flue gas heat flowing through deflector and export exhaust main pipe;Heat conduction plate both ends are fixed with heat collection plate, for concentrating the heat absorbed by heat conduction plate export. The utility model improves heat exchange efficiency by extending flue gas flow path, and realizes the heat dissipation effect of flue gas high efficiency in combination with air cooling and water cooling double heat dissipation system;Trigger mechanism automatically switches cooling mode according to temperature, improves system stability and energy utilization, prolongs equipment life, overall structure is compact, applicable to a variety of glass furnace kiln scene.

Description

Technical Field

[0001] This utility model relates to the field of glass furnace technology, specifically to a heat exchange device for purifying high-temperature flue gas emissions from glass furnaces. Background Technology

[0002] Glass furnaces generate large amounts of high-temperature flue gas during production. This flue gas not only carries significant heat energy, but its direct emission results in severe energy waste. Furthermore, if this high-temperature flue gas is released directly into the atmosphere without heat exchange treatment, it will raise ambient temperatures, exacerbate thermal pollution, and make harmful substances in the flue gas more difficult to purify at high temperatures, increasing the difficulty of meeting environmental standards. In addition, direct contact between high-temperature flue gas and emission pipes can cause equipment overheating and damage, shortening its service life. Therefore, heat exchange treatment of high-temperature flue gas has significant energy-saving benefits, environmental value, and equipment protection effects.

[0003] In the glass furnace production process, high-temperature flue gas carries a large amount of waste heat during emission. Traditional heat exchange devices suffer from insufficient heat dissipation, easily leading to overheating and equipment damage. Existing devices have simple heat exchange structures with short flue gas flow paths, resulting in inadequate heat exchange. Furthermore, the cooling systems often employ single air or water cooling methods, failing to automatically adjust according to temperature changes, leading to unstable heat dissipation efficiency and impacting equipment lifespan and operational safety. Therefore, a device integrating efficient heat exchange and intelligent heat dissipation control is needed to solve these problems. Utility Model Content

[0004] The purpose of this utility model embodiment is to provide a heat exchange device for purifying high-temperature flue gas emissions from glass furnaces, aiming to solve the problems mentioned in the background art and improve heat exchange efficiency and operational stability.

[0005] This utility model embodiment is implemented as follows: a heat exchange device for purifying high-temperature flue gas emissions from a glass furnace includes a main exhaust pipe and guide plates. Multiple guide plates are disposed and fixed within the main exhaust pipe to extend the flow distance of the high-temperature flue gas within the main exhaust pipe, thereby enhancing heat exchange efficiency. Multiple heat-conducting plates are fixed on the main exhaust pipe, passing through it and positioned between adjacent guide plates. These heat-conducting plates absorb heat from the high-temperature flue gas flowing through the guide plates and discharge it into the main exhaust pipe. Heat-collecting plates are fixed at both ends of the heat-conducting plates to concentrate and absorb the heat discharged by the heat-conducting plates.

[0006] Preferably, the main exhaust pipe has two protective covers fixedly mounted on it. Each cover has through holes for air circulation. A heat collection plate is disposed inside the protective cover, and a wind-cooled heat dissipation mechanism is fixedly installed inside the cover to dissipate heat from the heat collection plate. The wind-cooled heat dissipation mechanism includes a support plate, a first power component, and fan blades. Both ends of the support plate are fixedly connected to the inner wall of the protective cover. Multiple first power components are fixedly mounted on the support plate. The fan blades are connected to the output shaft of the first power components. The first power components can drive the fan blades to rotate, thereby driving directional airflow and carrying away heat from the heat collection plate.

[0007] Preferably, the protective cover is equipped with a water-cooling heat dissipation mechanism that passes through the heat collector plate for water-cooling heat dissipation of the heat collector plate. The water-cooling heat dissipation mechanism includes a water tank, an outlet pipe, a pump body, a condenser pipe, an inlet pipe, a heat-conducting block, and a cooling fan. The water tank is fixedly installed on the protective cover, and an outlet pipe is connected to the lower side of the water tank. The pump body is installed on the outlet pipe, and the water outlet extends into the protective cover. The water inlet of the condenser pipe is connected to the water outlet of the outlet pipe for further absorbing the heat dissipated by the heat collector plate. The water outlet of the condenser pipe is connected to the inlet pipe, and the water outlet of the inlet pipe is connected to the upper side of the water tank. A heat-conducting block is fixed on the water tank, and a cooling fan is installed on the heat-conducting block for dissipating and quickly dissipating the heat of the cooling water.

[0008] Preferably, a triggering mechanism is installed on the heat collection plate. When the temperature of the heat collection plate is too high, the triggering mechanism can activate the water-cooling heat dissipation mechanism. The triggering mechanism is used to control the opening and closing of the water-cooling heat dissipation mechanism. The triggering mechanism includes a heat absorption box, a sliding plate, an expansion liquid, a reset component, and a trigger switch. The heat absorption box is fixed to the heat collection plate. A sliding plate is slidably arranged inside the heat absorption box. An expansion liquid filled in the heat absorption box is arranged on the left side of the sliding plate. The expansion liquid can absorb heat and expand to push the sliding plate to move to the right. The reset component is fixedly connected to the inner wall of the heat absorption box. The sliding plate and the reset component are connected. The reset component is used to push the sliding plate to move to the left to reset. A trigger switch is installed inside the heat absorption box. The trigger switch has a corresponding pressure rod fixed on the sliding plate. When the sliding plate moves to the right, the pressure rod can press the trigger switch to open the pump body and generate a reset spring force in the reset component. The reset component includes a sleeve, a sleeve rod, and a reset spring. The end of the sleeve is fixedly connected to the inner wall of the heat absorption box. A sleeve rod is slidably arranged on the sleeve. The sliding plate and the sleeve rod are fixedly connected. The two ends of the reset spring are fixedly connected to the sleeve and the sliding plate respectively and are sleeved on the sleeve rod. It is used to push the sliding plate to move to the left to reset.

[0009] Beneficial effects: This utility model improves heat exchange efficiency by extending the flue gas flow path, and achieves efficient heat dissipation of flue gas by combining a dual heat dissipation system of air cooling and water cooling; the triggering mechanism automatically switches the heat dissipation mode according to the temperature, improving system stability and energy utilization, extending equipment life, and the overall structure is compact and suitable for various glass furnace scenarios. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a partial schematic diagram of the water-cooling heat dissipation mechanism; Figure 3 To trigger the sectional view of the internal structure of the mechanism; In the attached diagram: 1-exhaust pipe, 2-guide plate, 3-heat conduction plate, 4-heat collector plate, 5-protective cover, 6-air-cooled heat dissipation mechanism, 61-support plate, 62-first power component, 63-fan blade, 7-water-cooled heat dissipation mechanism, 71-water tank, 72-outlet pipe, 73-pump body, 74-condenser pipe, 75-inlet pipe, 76-heat conduction block, 77-cooling fan, 8-trigger mechanism, 81-heat absorption box, 82-slide plate, 83-expansion fluid, 84-reset assembly, 841-sleeve, 842-rod, 843-reset spring, 85-trigger switch, 86-pressure rod. Detailed Implementation

[0011] To make the purpose, technical solution, and effects of this utility model clearer and more explicit, the following description is provided in conjunction with the appendix. Figure 1-3 The present invention will be further described in detail below with reference to the embodiments. It should be understood that the specific embodiments described herein are only for explaining the present invention and are not intended to limit the present invention.

[0012] like Figure 1 As shown, this embodiment provides a heat exchange device for purifying high-temperature flue gas emissions from a glass furnace, including a main exhaust pipe 1 and guide plates 2. Multiple guide plates 2 are provided and fixed inside the main exhaust pipe 1 by welding, arranged in an alternating pattern to extend the flow distance of the high-temperature flue gas within the main exhaust pipe 1. The guide plates 2 are made of high-temperature resistant stainless steel, and the spacing between adjacent guide plates 2 is the same to ensure sufficient contact and heat exchange of the flue gas. The main exhaust pipe 1 is a circular pipe, and its inner wall is coated with a high-temperature anti-corrosion coating.

[0013] Multiple heat-conducting plates 3 are fixed on the main exhaust pipe 1. The heat-conducting plates 3 pass through the main exhaust pipe 1 and are located between two adjacent guide plates 2. They are made of copper and extend to the outside of the main exhaust pipe 1 at both ends, and are sealed to the main exhaust pipe 1 through flanges. Heat-collecting plates 4 are welded to both ends of the heat-conducting plates 3, and heat dissipation fins are provided on the surface to enhance the heat dissipation efficiency.

[0014] Two protective covers 5 are bolted to the main exhaust pipe 1. The protective covers 5 have ventilation holes, and the heat collection plate 4 is placed inside the protective covers 5. The air-cooled heat dissipation mechanism 6 is installed inside the protective covers 5, including a support plate 61, a first power component 62, and a fan blade 63: the two ends of the support plate 61 are bolted to the inner wall of the protective cover 5, and multiple first power components 62 (model YWF4E-300 axial flow fans) are fixed on it. The fan blade 63 is keyed to the output shaft. When started, the driven air flows in through the holes and carries away the heat from the heat collection plate 4.

[0015] A water-cooled heat dissipation mechanism 7, which passes through the heat collection plate 4, is installed on the protective cover 5. This mechanism includes a water tank 71, an outlet pipe 72, a pump body 73, a condenser pipe 74, an inlet pipe 75, a heat-conducting block 76, and a cooling fan 77. The water tank 71 is fixed to the top of the protective cover 5, with the outlet pipe 72 connected to its lower side. The pump body 73 (model DBY-10, flow rate 10L / min) is installed on the pipe, and its outlet extends into the protective cover 5 and connects to the condenser pipe 74, which is a serpentine copper pipe. The outlet of the condenser pipe 74 is connected to the inlet pipe 75, allowing the water to flow back to the water tank 71 to form a circulation. A heat-conducting block 76 is welded to the side of the water tank 71, and a cooling fan 77 is fixed on it to accelerate the cooling water's heat dissipation.

[0016] A triggering mechanism 8 is installed on the heat collection plate 4, including a heat absorption box 81, a sliding plate 82, an expansion liquid 83, a reset assembly 84, and a trigger switch 85. The heat absorption box 81 is fixed to the heat collection plate 4, and the sliding plate 82 is slidably installed inside it. The left side is filled with expansion liquid 83, which is methyl silicone oil with an expansion coefficient of 0.0012 / ℃. The heat absorption and expansion push the sliding plate 82 to the right. The reset assembly 84 includes a sleeve 841 (the end of which is welded to the inner wall of the heat absorption box 81), a sleeve rod 842 (slidably installed on the sleeve 841 and welded to the sliding plate 82), and a reset spring 843 (fitted on the sleeve rod 842, with the sleeve 841 and the sliding plate 82 welded at both ends), which is used to reset the sliding plate. The trigger switch 85 is installed inside the heat absorption box 81, corresponding to the pressure rod 86 on the sliding plate 82. The sliding plate moves to the right, causing the pressure rod to trigger the switch 85, starting the pump body 73 and accumulating energy in the reset assembly 84.

[0017] Working principle: After the high-temperature flue gas enters the main exhaust pipe 1, it forms a tortuous flow path through the guide plate 2, prolonging the heat exchange time; the heat is transferred to the heat collection plate 4 through the heat conduction plate 3. At this time, the air-cooled heat dissipation mechanism 6 is activated, and the fan blades 63 rotate to remove the heat; when the temperature of the heat collection plate 4 exceeds 80℃, the expansion liquid 83 in the heat absorption box 81 expands due to heat, pushing the slide plate 82 to the right. The pressure rod 86 triggers the switch 85, starting the pump body 73. The cooling water absorbs heat through the outlet pipe 72 and the condenser pipe 74 and then flows back to the water tank 71. The heat conduction block 76 and the cooling fan 77 accelerate the cooling water heat dissipation; after the temperature drops, the expansion liquid 83 contracts, the reset component 84 drives the slide plate 82 to the left to reset, the trigger switch 85 is disconnected, the pump body 73 stops, and the air-cooled heat dissipation is restored. The number and spacing of the guide vanes 2 can be adjusted to accommodate different flue gas flow rates; the operating temperature of the trigger switch 85 can be adjusted to regulate the water-cooled start-up threshold; the condenser tube 74 can be replaced with a microchannel heat exchanger to improve efficiency; the protective cover 5 integrates an insulation layer to reduce heat loss, making it suitable for high-temperature flue gas waste heat recovery scenarios such as machining and metallurgy.

[0018] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural or procedural transformations made based on the content of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are similarly included within the protection scope of the present utility model.

Claims

1. A heat exchange device for purifying high-temperature flue gas emissions from a glass furnace, comprising a main exhaust pipe (1) and a guide plate (2), characterized in that, The guide plate (2) is provided in multiple and fixed inside the exhaust pipe (1) to extend the flow distance of the high temperature flue gas inside the exhaust pipe (1); Heat-conducting plate (3), which is fixed on the flue gas main pipe (1) and passes through the flue gas main pipe (1), the heat-conducting plate (3) is provided in multiple and located between two adjacent guide plates (2), for absorbing the heat of the high temperature flue gas flowing through the guide plate (2) and discharging it out of the flue gas main pipe (1). The heat collection plate (4) has two parts and is fixed at both ends of the heat conduction plate (3) to absorb the heat conducted by the heat conduction plate (3); The protective cover (5) is fixed on the exhaust pipe (1) and there are two of them. Both of the protective covers (5) have through holes for air circulation. The heat collection plate (4) is set inside the protective cover (5). The protective cover (5) is fixedly installed with a wind-cooled heat dissipation mechanism (6) for dissipating the heat on the heat collection plate (4). A water-cooled heat dissipation mechanism (7) is installed on the protective cover (5) and passes through the heat collection plate (4) to dissipate heat on the heat collection plate (4) by water cooling. The trigger mechanism (8) is installed on the heat collection plate (4). When the temperature of the heat collection plate (4) is too high, the trigger mechanism (8) can start the water cooling heat dissipation mechanism (7). The trigger mechanism (8) is used to control the opening and closing of the water cooling heat dissipation mechanism (7).

2. The heat exchange device for purifying high-temperature flue gas emissions from glass furnaces according to claim 1, characterized in that, The air-cooled heat dissipation mechanism (6) includes: The support plate (61) is fixedly connected to the inner wall of the protective cover (5) at both ends. A first power component (62) is fixedly installed on the support plate (61), and multiple first power components (62) are provided. The fan blade (63) is connected to the output shaft of the first power component (62), which is used to drive the fan blade (63) to rotate so as to drive the air to flow in a directional manner and carry away the heat on the heat collection plate (4).

3. The heat exchange device for purifying high-temperature flue gas emissions from glass furnaces according to claim 1, characterized in that, The water-cooled heat dissipation mechanism (7) includes: A water tank (71) is fixedly installed on a protective cover (5). A drain pipe (72) is connected to the lower side of the water tank (71). A pump body (73) is installed on the drain pipe (72) and the outlet end of the drain pipe (72) extends into the protective cover (5). A triggering mechanism (8) can control the opening and closing of the pump body (73). The condenser tube (74) has its inlet end connected to the outlet end of the outlet tube (72) for further absorbing the heat discharged by the heat collection plate (4). The outlet end of the condenser tube (74) is connected to the inlet tube (75), and the outlet end of the inlet tube (75) is connected to the upper side of the water tank (71). A heat-conducting block (76), which is fixed on the water tank (71), is used to conduct heat out of the cooling water. A cooling fan (77) is provided on the heat-conducting block (76) to dissipate heat quickly.

4. The heat exchange device for purifying high-temperature flue gas emissions from glass furnaces according to claim 3, characterized in that, The triggering mechanism (8) includes: A heat-absorbing box (81) is fixed on a heat-collecting plate (4). A sliding plate (82) is slidably arranged inside the heat-absorbing box (81). An expansion liquid (83) filled in the heat-absorbing box (81) is arranged on the left side of the sliding plate (82). The expansion liquid (83) can absorb heat and expand to push the sliding plate (82) to the right. The reset assembly (84) is fixedly connected to the inner wall of the heat absorption box (81), the slide plate (82) is connected to the reset assembly (84), and the reset assembly (84) is used to push the slide plate (82) to the left to reset; A trigger switch (85) is installed inside the heat absorption box (81). The trigger switch (85) has a corresponding pressure rod (86) fixed on the slide plate (82). When the slide plate (82) moves to the right, the pressure rod (86) presses the trigger switch (85) to open the pump body (73) and cause the reset assembly (84) to generate a reset spring force.

5. The heat exchange device for purifying high-temperature flue gas emissions from glass furnaces according to claim 4, characterized in that, The reset component (84) includes: A sleeve (841) is fixedly connected at its end to the inner wall of the heat absorption box (81). A sleeve rod (842) is slidably provided on the sleeve (841). A sliding plate (82) is fixedly connected to the sleeve rod (842). The reset spring (843) is fixedly connected to the sleeve (841) and the slide plate (82) at both ends and is sleeved on the sleeve rod (842) to push the slide plate (82) to move to the left to reset.

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