High-temperature flue gas waste heat recovery device

Abstract

The high-temperature flue gas waste heat recovery device comprises a smoke exhaust mechanism and a heat recovery mechanism, the smoke exhaust mechanism comprises a smoke exhaust assembly, a smoke exhaust pipe and supports, the smoke exhaust pipe communicates with the smoke exhaust mechanism, and the supports are installed at the four corners of the bottom end of the smoke exhaust assembly; the heat recovery mechanism is arranged on the smoke exhaust assembly and comprises water storage pipes, a sealing assembly, a water drainage pipe and a water outlet pipe, the smoke exhaust pipe is sleeved with the water storage pipes, the sealing assembly is installed at the top ends of the water storage pipes, the water drainage pipe is communicated with the water storage pipes, and the water storage pipes are communicated with one another; and the water storage pipe is communicated with the smoke exhaust assembly. Therefore, while the flue gas waste heat is efficiently recovered, the direct contact between the flue gas and the internal structure can be obviously reduced, so that the influence of dust deposition on the heat recovery efficiency is effectively relieved; and meanwhile, non-stop maintenance and rapid cleaning can be conveniently achieved, the labor burden of operators is effectively relieved, and continuous and stable operation of a boiler system is guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of waste heat recovery, and particularly relates to a high-temperature flue gas waste heat recovery device. BACKGROUND

[0002] In the field of industrial production, thermal equipment such as boilers, kilns and smelting furnaces is the core carrier of energy consumption, and a large amount of high-temperature flue gas with a temperature of 300-1800 DEG C will be generated in the operation process.

[0003] At present, in order to avoid energy waste caused by direct emission, a waste heat recovery device (heat exchanger) is usually used to recover the heat in the flue gas. When recovering, the flue gas directly contacts the recovery device, thereby heating the air or water in the device. The heated air or water can be used for heating or combustion support.

[0004] However, in order to improve the heat exchange efficiency of waste heat recovery, it is usually necessary to increase the contact area between the flue gas and the heat exchange medium and to strengthen the heat exchange process, but this objectively aggravates the problems of dust accumulation, corrosion and wear. After long-term operation, the accumulated dust will form an insulating layer on the heat exchange surface, which will significantly reduce the heat exchange efficiency and affect the waste heat recovery effect; at the same time, the corrosive components such as sulfides contained in the flue gas will gradually corrode the equipment materials, resulting in structural damage or even failure. Therefore, the recovery device needs to be cleaned regularly. When cleaning and maintaining, the recovery device needs to be disassembled, which not only increases the labor burden of the operator, but also must be stopped before disassembly and cleaning operation to avoid the risk of scalding caused by high-temperature flue gas, which results in a long cleaning time and seriously restricts the continuous and stable operation of the boiler system. SUMMARY

[0005] The present application aims to at least solve one of the technical problems in the related art to some extent.

[0006] To this end, one purpose of the present application is to provide a high-temperature flue gas waste heat recovery device, which can efficiently recover the waste heat of flue gas while significantly reducing the direct contact between flue gas and internal structure, thereby effectively alleviating the influence of dust accumulation on heat recovery efficiency; at the same time, it is convenient to realize non-stop maintenance and rapid cleaning, effectively reducing the labor burden of the operator and ensuring the continuous and stable operation of the boiler system.

[0007] To achieve the above object, the first aspect of the present application proposes a high-temperature flue gas waste heat recovery device, comprising a flue gas discharging mechanism and a heat recovery mechanism, wherein the flue gas discharging mechanism comprises a flue gas discharging assembly, a flue gas discharging pipe and a support, wherein the flue gas discharging pipe is connected to the flue gas discharging mechanism, and the support is installed at the bottom end of the four corners of the flue gas discharging assembly; the heat recovery mechanism is arranged on the flue gas discharging assembly, and comprises a water storage pipe, a sealing assembly, a drain pipe and a water outlet pipe, wherein the water storage pipe is sleeved on the outside of the flue gas discharging pipe, the sealing assembly is installed at the top end of the water storage pipe, the drain pipe is connected to the water storage pipe, the water storage pipe is provided with multiple groups, the multiple groups of water storage pipes are connected to each other, the water storage pipe is connected to the flue gas discharging assembly, and the water outlet pipe is connected to the bottom of the flue gas discharging assembly.

[0008] The high-temperature flue gas waste heat recovery device of the present application can realize heat conduction through the flue gas discharging pipe during flue gas discharging, and then the conducted heat is absorbed by water or air in the water storage pipe, thereby realizing the recovery and treatment of flue gas waste heat. During waste heat recovery, the smoke dust in the flue gas can be prevented from directly contacting the recovery device and adhering to the recovery device, so that the recovery device can be prevented from being contaminated by the smoke dust, thereby reducing the cleaning frequency of the recovery device and fully ensuring the stable operation of the boiler system.

[0009] In addition, the high-temperature flue gas waste heat recovery device according to the present application can have the following additional technical features: In one embodiment of the present application, the flue gas discharging assembly comprises a flue gas discharging box, a flue gas inlet pipe and a flue gas valve, wherein the flue gas inlet pipe is connected to the flue gas discharging box through the flue gas valve.

[0010] In one embodiment of the present application, the sealing assembly comprises an abutting part, a sealing ring, a sealing clamping plate, a connecting plate and a connecting bolt, wherein the abutting part is sleeved on the flue gas discharging pipe, the sealing ring is clamped on the water storage pipe through the sealing clamping plate, the connecting plate is installed on the sealing ring through the connecting bolt, and the abutting part abuts against the connecting plate.

[0011] In one embodiment of the present application, the abutting part comprises a fixing ring and an abutting bolt, wherein the fixing ring is connected to the flue gas discharging pipe, a heat insulation pad is installed between the fixing ring and the flue gas discharging pipe, and the abutting bolt is threaded through the fixing ring and abuts against the connecting plate.

[0012] In an embodiment of the present application, the smoke exhaust assembly is provided with an ash exhaust assembly, the ash exhaust assembly comprising a baffle, a scraper and a sealing plate, wherein the baffle is hinged at one end of the smoke exhaust assembly, the scraper is slidingly installed at the end of the smoke exhaust assembly away from the baffle, the sealing plate is installed at one end of the scraper, and the sealing plate abuts against the smoke exhaust assembly.

[0013] In an embodiment of the present application, the support is provided with a climbing assembly, the climbing assembly comprising a fixed plate and a climbing ladder, wherein the fixed plate is installed on the support, the climbing ladder is obliquely installed on the fixed plate, and the bottom of the climbing ladder is clamped to the fixed plate through an auxiliary plate.

[0014] Compared with the prior art, the present application has the following advantages: 1. The present application discharges and treats flue gas through the smoke exhaust assembly, and the water or air in the heat recovery mechanism is heated during the discharge process. In the heating process, the flue dust is prevented from directly contacting the heat recovery mechanism, thereby reducing the cleaning frequency of impurities in the heat recovery mechanism and ensuring the continuous and stable operation of the boiler system. 2. The climbing assembly of the present application can facilitate the staff to climb to the smoke exhaust pipe to clean the attached flue dust. In the cleaning process, the flue dust falls into the smoke exhaust assembly, and then the flue dust falling and adhering in the smoke exhaust assembly is cleaned by the action of the ash exhaust assembly, thereby improving the efficiency of flue dust cleaning. 3. The present application can also discharge water containing sodium citrate to the water storage pipe through the drain pipe, use the flue gas waste heat to warm up, accelerate the cleaning of the scale in the water storage pipe, and after cleaning, directly discharge from the water outlet pipe, thereby completing the cleaning of impurities in the water storage pipe. At the same time, the operation of the boiler system does not need to be stopped during the cleaning process, thereby reducing the cleaning cost of the heat recovery mechanism.

[0015] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 Fig. 1 is a perspective view of a high-temperature flue gas waste heat recovery device according to the present application; Figure 2 Fig. 2 is a schematic view of a smoke exhaust mechanism of the high-temperature flue gas waste heat recovery device according to the present application; Figure 3 Fig. 3 is a schematic view of a heat recovery mechanism of the high-temperature flue gas waste heat recovery device according to the present application; Figure 4 Fig. 4 is a schematic view of a sealing assembly structure of the high-temperature flue gas waste heat recovery device according to the present application; Figure 5This is a schematic diagram of the ash removal component of the high-temperature flue gas waste heat recovery device of this application.

[0017] As shown in the figure: 1. Smoke exhaust mechanism; 11. Smoke exhaust assembly; 111. Smoke exhaust box; 112. Smoke inlet pipe; 113. Smoke exhaust valve; 12. Smoke exhaust pipe; 13. Bracket; 2. Heat recovery mechanism; 21. Water storage pipe; 22. Sealing assembly; 221. Abutting component; 2211. Fixing ring; 2212. Abutting bolt; 222. Sealing ring; 223. Sealing plate; 224. Connecting plate; 225. Connecting bolt; 23. Drain pipe; 24. Water outlet pipe; 3. Ash removal assembly; 31. Baffle; 32. Scraper; 33. Sealing plate; 4. Climbing assembly; 41. Fixing plate; 42. Climbing ladder. Detailed Implementation

[0018] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0019] The high-temperature flue gas waste heat recovery device of this application embodiment will be described below with reference to the accompanying drawings.

[0020] like Figures 1-5 As shown, the high-temperature flue gas waste heat recovery device in this application embodiment may include a flue gas exhaust mechanism 1 and a heat recovery mechanism 2.

[0021] The smoke exhaust mechanism 1 may include a smoke exhaust assembly 11, a smoke exhaust pipe 12, and a bracket 13.

[0022] It should be noted that the exhaust pipe 12 described in the above embodiment is connected to a dust treatment device (not shown in the figure), which can filter the dust in the cooled flue gas and thus ensure that the emitted flue gas meets environmental protection requirements.

[0023] Furthermore, the dust treatment device may include cyclone dust collectors and bag filters.

[0024] The cyclone dust collector is connected to the exhaust pipe 12 via a transfer pipe, and the end of the cyclone dust collector away from the exhaust pipe 12 is connected to the bag filter.

[0025] Understandably, the cyclone dust collector pre-treats the dust in the cooled flue gas, and after pre-treatment, the flue gas is discharged into the bag filter again, where the dust is further filtered to ensure that the flue gas meets environmental protection requirements during exhaust.

[0026] It should be noted that the smoke exhaust assembly 11 described in the above embodiment is connected with an auxiliary smoke pipe (not shown in the figure), and a forced air cooler is installed on the auxiliary smoke pipe. The smoke exhaust end of the auxiliary smoke pipe is connected with the smoke dust treatment device, so that when the smoke exhaust pipe 12 and the smoke exhaust assembly 11 are cleaned, the operation of the boiler does not need to be stopped, and the cleaning cost is saved.

[0027] The smoke exhaust pipe 12 is connected to the smoke exhaust mechanism 1, and the support 13 is installed at the bottom end of the smoke exhaust assembly 11.

[0028] It should be noted that the inside of the smoke exhaust pipe 12 described in the above embodiment is coated with a high-radiation coating, thereby improving the anti-dust capacity of the smoke exhaust pipe 12 and reducing the adhesion of smoke dust.

[0029] It can be understood that the smoke exhaust assembly 11 facilitates the discharge of flue gas, and the smoke exhaust pipe 12 realizes the heating of water or air, and the support 13 realizes the support of the smoke exhaust assembly 11.

[0030] Further, as shown in Figure 1 The smoke exhaust assembly 11 can include a smoke exhaust box 111, a smoke inlet pipe 112, and a smoke exhaust valve 113.

[0031] It should be noted that during the cleaning of the smoke dust, the smoke exhaust valve 113 can be closed to prevent the smoke dust in the smoke inlet pipe 112 from being discharged into the smoke exhaust valve 113, and the auxiliary smoke pipe is opened when the smoke exhaust valve 113 is closed to realize the continuous discharge of flue gas, thereby ensuring the stable operation of the boiler system during the cleaning of the smoke dust.

[0032] The smoke inlet pipe 112 is connected to the smoke exhaust box 111 through the smoke exhaust valve 113.

[0033] It should be noted that the inside of the smoke exhaust box 111 described in the above embodiment is provided with a water storage groove, which realizes the storage of water and improves the heat recovery effect.

[0034] Specifically, the smoke exhaust valve 113 is connected to the flue gas discharge pipeline under the action of the smoke inlet pipe 112, and then the discharged flue gas is discharged into the smoke exhaust pipe 12 through the smoke exhaust box 111 under the action of the smoke exhaust valve 113, thereby realizing the discharge of flue gas and achieving the effect of heat recovery in flue gas. At the same time, since the smoke exhaust pipe 12 and the smoke dust treatment device are not provided with any components, the system resistance of the flue gas discharge system is small, thereby fully ensuring the smoothness of the smoke exhaust effect.

[0035] The heat recovery mechanism 2 is arranged on the smoke exhaust assembly 11, and the heat recovery mechanism 2 can include a water storage pipe 21, a sealing assembly 22, a drain pipe 23, and a water outlet pipe 24.

[0036] It should be noted that the outer side of the water storage pipe 21 described in the above embodiment can be wrapped with a heat preservation layer, thereby reducing heat loss, fully realizing heat recovery processing, and reducing heat energy leakage.

[0037] The water storage pipe 21 is sleeved on the outer side of the smoke exhaust pipe 12, the sealing assembly 22 is installed at the top end of the water storage pipe 21, the drain pipe 23 is connected with the water storage pipe 21, and the water storage pipe 21 is provided in multiple groups, the multiple groups of water storage pipes 21 are connected with each other, the water storage pipe 21 is connected with the smoke exhaust assembly 11, and the water outlet pipe 24 is connected at the bottom of the smoke exhaust assembly 11.

[0038] It can be understood that water or air is injected into the water storage pipe 21 and the smoke exhaust assembly 11 under the action of the drain pipe 23, and the storage of water is completed under the action of the water storage pipe 21 and the smoke exhaust assembly 11, and the water or air is heated through the smoke exhaust pipe 12 in the storage process. Since the water passes through the water storage pipe 21 first, the flue gas in the water storage pipe 21 is preheated, and the heated water is discharged into the smoke exhaust assembly 11 again through the water storage pipe 21. Since the smoke exhaust assembly 11 is the first group of pipes in contact with the flue gas, the heated water is further heated under the action of the smoke exhaust assembly 11, so as to fully recover the heat energy, so as to make the exhaust temperature as low as possible. 120℃ below, fully improve the energy saving effect, and after heating, the water or air is discharged through the water outlet pipe 24 for heating or combustion support of the boiler.

[0039] Further, as shown in Figure 4 The sealing assembly 22 can include an abutting component 221, a sealing ring 222, a sealing clamping plate 223, a connecting plate 224 and a connecting bolt 225.

[0040] It should be noted that the sealing ring 222 and the sealing clamping plate 223 on each group of water storage pipes 21 are provided in two groups, so as to facilitate the disassembly of the sealing ring 222 from the water storage pipe 21, and to facilitate the physical cleaning of the water scale in the water storage pipe 21.

[0041] It should be noted that the two sides of the sealing clamping plate 223 described in the above embodiment respectively abut against the water storage pipe 21 and the smoke exhaust pipe 12, thereby increasing the sealing property of the water storage pipe 21 and avoiding water or air loss.

[0042] The abutting component 221 is sleeved on the smoke exhaust pipe 12, the sealing ring 222 is clamped on the water storage pipe 21 through the sealing clamping plate 223, the connecting plate 224 is installed on the sealing ring 222 through the connecting bolt 225, and the abutting component 221 abuts against the connecting plate 224.

[0043] It can be understood that the sealing of the top space of the water storage pipe 21 is completed under the action of the sealing ring 222 and the sealing clamping plate 223, and the connection between the two groups of sealing rings 222 is realized through the connecting plate 224 and the connecting bolt 225 after sealing. After connection, the abutment of the connecting plate 224 is completed by the abutment component 221, so as to avoid that the hot gas generated when the water in the water storage pipe 21 is heated will push the sealing ring 222 and the sealing clamping plate 223 away from the water storage pipe 21, and ensure that the heat will not leak out.

[0044] Specifically, as shown in Figure 4 The abutment component 221 can include a fixed ring 2211 and an abutment bolt 2212.

[0045] The fixed ring 2211 is connected with the smoke exhaust pipe 12, and a heat insulation pad is installed between the fixed ring 2211 and the smoke exhaust pipe 12. The abutment bolt 2212 is threaded through the fixed ring 2211 and abuts against the connecting plate 224.

[0046] It can be understood that the installation of the abutment bolt 2212 is completed under the action of the fixed ring 2211, and the connecting plate 224 is abutted on the sealing ring 222 under the action of the abutment bolt 2212, so as to realize the limiting treatment of the sealing ring 222 on the water storage pipe 21 and increase the firmness of the sealing ring 222 on the water storage pipe 21.

[0047] Specifically, the high-temperature flue gas waste heat recovery device provided by the present application can be used for recycling the heat in the flue gas generated in the boiler and the like. In actual operation, the relevant personnel first connects the smoke exhaust assembly 11 with the flue gas exhaust pipeline of the boiler to ensure that the smoke inlet pipe 112 can stably receive the flue gas discharged by the boiler. When the boiler is running, the high-temperature flue gas enters the smoke exhaust box 111 through the smoke inlet pipe 112, and then the smoke exhaust box 111 guides the flue gas into the smoke exhaust pipe 12. In the process of the flue gas passing through the smoke exhaust pipe 12, since the smoke exhaust pipe 12 is sleeved with a plurality of water storage pipes 21 on the outside, the heat in the flue gas will be conducted to the water or air in the water storage pipes 21 and the smoke exhaust box 111 through the pipe wall of the smoke exhaust pipe 12. The heat insulation layer wrapped on the outside of the water storage pipe 21 can effectively reduce the loss of heat to the outside, so as to ensure that as much heat as possible is absorbed by the medium in the water storage pipe 21 and the smoke exhaust box 111. As the water or air in the water storage pipe 21 continuously absorbs heat, the temperature gradually rises. The heated water or air can be discharged through the water outlet pipe 24 according to actual needs, used for heating or transported to the boiler through the pipeline as combustion-supporting air, so as to realize the recycling of the flue gas waste heat.

[0048] After the device runs for a period of time, the attached soot in the smoke exhaust pipe 12 and the smoke exhaust box 111 can be cleaned following a cleaning cycle of the smoke exhaust chimney (for example, 6 months). At this time, the relevant personnel can close the smoke exhaust valve 113 to prevent the flue gas from continuing to pass through the smoke exhaust box 111 and the smoke exhaust pipe 12, and open the auxiliary smoke pipe to ensure that the flue gas generated by the boiler is discharged through the auxiliary smoke pipe, thereby ensuring the continuous and stable operation of the boiler system. For the soot attached to the smoke exhaust pipe 12, the worker can clean the inner surface of the smoke exhaust pipe 12 by using a special cleaning tool. The cleaned soot falls into the smoke exhaust box 111. Then, the smoke exhaust box 111 is opened, and the tool is used to clean the soot that falls and adheres in the smoke exhaust box 111. When it is necessary to clean the scale in the water storage pipe 21, the worker can inject water containing a descaling agent such as sodium citrate into the water storage pipe 21 through the drain pipe 23. The water is heated by the flue gas waste heat. The heated water can accelerate the dissolution and cleaning of the scale on the inner wall of the water storage pipe 21 by the descaling agent. After cleaning, the sewage containing the scale is directly discharged through the water outlet pipe 24. When the scale in the water storage pipe 21 is thick, the water storage pipe 21 can be opened by the sealing assembly 22. The scale is cleaned by physical cleaning. After cleaning, the scale is in the form of powder and accumulates in the water storage pipe 21. Then, the sealing assembly 22 is reinstalled on the water storage pipe 21. Water is injected into the water storage pipe 21 through the drain pipe 23. Thus, the scale in the water storage pipe 21 is cleaned by flushing. The entire cleaning process does not need to stop the operation of the boiler system, greatly reducing the cleaning cost and the influence on the system operation.

[0049] The above embodiment can significantly reduce the direct contact between the flue gas and the internal structure while efficiently recovering the flue gas waste heat, thereby effectively alleviating the influence of the accumulated ash on the heat recovery efficiency. Meanwhile, the embodiment facilitates non-stop maintenance and rapid cleaning, effectively reduces the labor burden of the operator, and ensures the continuous and stable operation of the boiler system.

[0050] In one embodiment of the present application, as shown in Figure 5 The ash removal assembly 3 can include a baffle 31, a scraper 32, and a sealing plate 33.

[0051] It should be noted that in the above embodiment, one side of the smoke exhaust assembly 11 is provided with a driving member (not shown in the figure). The driving member can be an electric slide rod. The extension end of the electric slide rod is connected with the scraper 32. Thus, the cleaning of the soot that falls and adheres in the smoke exhaust box 111 is realized by driving the scraper 32.

[0052] The baffle 31 is hinged at one end of the smoke exhaust assembly 11. The scraper 32 is slidingly installed at the end of the smoke exhaust assembly 11 away from the baffle 31. The sealing plate 33 is installed at one end of the scraper 32. The sealing plate 33 abuts against the smoke exhaust assembly 11.

[0053] Specifically, in the process of cleaning the soot, the exhaust valve 113 is closed, and the auxiliary smoke pipe is opened, so that the flue gas is forced to be discharged through the auxiliary smoke pipe. After the temperature in the exhaust pipe 12 is reduced, the soot attached to the inner surface of the exhaust pipe 12 is cleaned by the cleaning tool. During the cleaning process, the soot falls into the exhaust box 111. Subsequently, the baffle 31 is opened, and the sealing plate 33 is removed from the scraper 32. The scraper 32 is driven by the driving member, thereby achieving the effect of cleaning the soot falling and attached in the exhaust box 111.

[0054] In an embodiment of the present application, as shown in Figure 5 The support 13 is provided with a climbing assembly 4, which can include a fixed plate 41 and a climbing ladder 42.

[0055] It should be noted that the climbing ladder 42 in the above embodiment is provided with a dust suction assembly (not shown in the figure), which can include a dust suction pump, a filter box, and a dust suction cover.

[0056] The dust suction pump and the filter box are both installed on the climbing ladder 42. The outlet end of the dust suction pump is in communication with the filter box. The dust suction cover is installed on the climbing ladder 42 through a fixing bracket. The inlet end of the dust suction pump is in communication with the dust suction cover.

[0057] It should be noted that the fixing bracket in the above embodiment can rotate on the climbing ladder 42, thereby adjusting the orientation of the dust suction cover, avoiding obstruction during flue gas discharge, and changing the orientation of the dust suction cover during cleaning to extract the scattered soot, avoiding the impact of soot on the environment. After changing the orientation of the dust suction cover, the fixing bracket can be limited by bolts and other parts, avoiding rotation of the fixing bracket.

[0058] The fixed plate 41 is installed on the support 13. The climbing ladder 42 is installed on the fixed plate 41 in an inclined manner. The bottom of the climbing ladder 42 is clamped to the fixed plate 41 through an auxiliary plate.

[0059] Specifically, during cleaning, the staff climbs to the top of the smoke exhaust mechanism 1 through the climbing ladder 42 on the fixed plate 41. Then, the exhaust pipe 12 is disassembled from the filter device. The orientation of the dust suction cover is changed by rotating the fixing bracket, so that the dust suction cover is above the exhaust pipe 12. Then, the exhaust pipe 12 is cleaned by a tool. During cleaning, the dust suction pump is turned on to extract the scattered soot through the dust suction cover, and the filter box is used to filter the soot, reducing the diffusion of the soot, thereby meeting the environmental protection requirements.

[0060] In summary, the high-temperature flue gas waste heat recovery device of the embodiment of the present application can significantly reduce the direct contact between the flue gas and the internal structure while efficiently recovering the waste heat of the flue gas, thereby effectively alleviating the influence of the accumulated ash on the heat recovery efficiency; meanwhile, it is convenient to realize the non-stop maintenance and rapid cleaning, effectively reducing the labor burden of the operating personnel, and ensuring the continuous and stable operation of the boiler system.

[0061] In the description of the present specification, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0062] In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples without contradiction.

[0063] Although the embodiments of the present application have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary and cannot be understood as limiting the present application, and the person skilled in the art can make changes, modifications, replacements and deformations to the above-mentioned embodiments within the scope of the present application.

Claims

1. A high-temperature flue gas waste heat recovery device, characterized in that, This includes smoke extraction and heat recovery systems, among which, The smoke exhaust mechanism includes a smoke exhaust assembly, a smoke exhaust pipe, and a support frame, wherein, The exhaust pipe is connected to the exhaust mechanism, and the bracket is installed at the four bottom corners of the exhaust assembly; The heat recovery mechanism is installed on the smoke exhaust assembly. The heat recovery mechanism includes a water storage pipe, a sealing assembly, a drain pipe, and a water outlet pipe. The water storage pipe is sleeved on the outside of the exhaust pipe, the sealing component is installed at the top of the water storage pipe, the drain pipe is connected to the water storage pipe, and multiple sets of water storage pipes are provided, which are connected to each other. The water storage pipe is connected to the exhaust component, and the outlet pipe is connected to the bottom of the exhaust component.

2. The high-temperature flue gas waste heat recovery device according to claim 1, characterized in that, The smoke exhaust assembly includes a smoke exhaust box, a smoke inlet pipe, and a smoke exhaust valve, wherein... The smoke inlet pipe is connected to the smoke exhaust box via the smoke exhaust valve.

3. The high-temperature flue gas waste heat recovery device according to claim 1, characterized in that, The sealing assembly includes an abutment component, a sealing ring, a sealing plate, a connecting plate, and connecting bolts, wherein, The abutting component is sleeved on the exhaust pipe, the sealing ring is snapped onto the water storage pipe by the sealing plate, the connecting plate is installed on the sealing ring by the connecting bolts, and the abutting component abuts against the connecting plate.

4. The high-temperature flue gas waste heat recovery device according to claim 3, characterized in that, The abutting component includes a retaining ring and an abutting bolt, wherein, The fixing ring is connected to the exhaust pipe, and a heat insulation pad is installed between the fixing ring and the exhaust pipe. The abutting bolt passes through the fixing ring and abuts against the connecting plate.

5. The high-temperature flue gas waste heat recovery device according to claim 1, characterized in that, The smoke exhaust assembly is equipped with an ash removal assembly, which includes a baffle, a scraper, and a sealing plate. The baffle is hinged to one end of the smoke exhaust assembly, the scraper is slidably mounted on the end of the smoke exhaust assembly away from the baffle, the sealing plate is mounted on one end of the scraper, and the sealing plate abuts against the smoke exhaust assembly.

6. The high-temperature flue gas waste heat recovery device according to claim 1, characterized in that, The support frame is equipped with a climbing assembly, which includes a fixing plate and a climbing ladder. The fixing plate is installed on the bracket, the climbing ladder is installed at an angle on the fixing plate, and the bottom of the climbing ladder is engaged with the fixing plate through an auxiliary plate.

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