Industrial waste heat recovery and utilization system and energy storage method

Abstract

The present invention relates to the technical field of industrial waste heat recovery and utilization equipment, and discloses an industrial waste heat recovery and utilization system and an energy storage method, including a flue gas channel, the flue gas channel is arranged in an industrial waste gas emission system; a primary heat conducting mechanism, the primary heat conducting mechanism is arranged at one side of the flue gas channel, the primary heat conducting mechanism exchanges heat with the flue gas through a plurality of heat conducting plates and a first heat exchange tube therein; a secondary heat conducting mechanism, the secondary heat conducting mechanism is arranged at the central part of the primary heat conducting mechanism; the secondary heat conducting mechanism of the present invention is arranged at the central position of the primary heat conducting mechanism, and can exchange and transport the heat dissipated to the center by the heat conducting plate, thereby increasing the utilization efficiency of the waste heat of the flue gas; the third-level heat conducting mechanism can block the heat dissipated to the periphery by the primary heat conducting mechanism and exchange heat through the heat exchange input tube and the heat exchange output tube therein, and the temperature of different areas is exchanged by multiple levels, thereby improving the utilization efficiency of the waste heat in the flue gas.

Description

Technical Field

[0001] The present invention relates to the technical field of industrial waste heat recovery equipment, and in particular to an industrial waste heat recovery system and an energy storage method. Background Art

[0002] Industrial production processes are often accompanied by the generation of a large amount of waste heat. If this waste heat is not effectively utilized, it will not only cause energy waste, but also may cause thermal pollution to the environment. Traditional waste heat recovery methods often have problems such as low recovery efficiency and large heat energy loss. Therefore, the development of an efficient, multi-level heat conduction mechanism is of great significance to improving the recovery and utilization rate of industrial waste heat.

[0003] In an industrial waste heat recovery and utilization device and method with Chinese patent application number 202310495633.3, this invention includes a heat exchange mechanism, a compression mechanism, a buffer mechanism, a heat utilization mechanism, a storage mechanism and a generator connected in sequence on the medium pipeline, and the heat exchange mechanism includes a first-stage air heat exchanger and a second-stage waste heat exchanger. One end of the first-stage air heat exchanger is connected to the generator, and the other end of the first-stage air heat exchanger is connected to one end of the second-stage waste heat exchanger. The other end of the second-stage waste heat exchanger is connected to the compression mechanism. At the same time, a method for industrial waste heat recovery and utilization based on the above-mentioned device is disclosed. The above-mentioned industrial waste heat recovery and utilization device and method are used to preheat the medium using air temperature to improve the waste heat utilization rate in the later stage, and the high-pressure and low-temperature medium after heat utilization is used to generate electricity through a generator to improve energy utilization.

[0004] Nowadays, when high-temperature exhaust gas is discharged in industrial production, the exhaust gas is usually discharged through a heat exchanger, and the high-temperature heat of the exhaust gas is recovered and utilized through convective heat transfer methods such as heat exchange fluid. The recovered heat is stored in a heat pump and then output for reuse. However, when the flue gas is heat exchanged, the heat is dissipated and the heat energy loss is large, which affects the utilization efficiency of the waste heat. Summary of the invention

[0005] The object of the present invention is to provide an industrial waste heat recovery system and an energy storage method to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A flue gas channel, wherein the flue gas channel is arranged in an industrial waste gas emission system;

[0008] A primary heat conduction mechanism, the primary heat conduction mechanism is arranged on one side of the flue gas channel, the primary heat conduction mechanism comprises a side cover, a plurality of heat conduction plates, a plurality of connecting holes, a second mounting hole, a plurality of first heat exchange tubes and a flue gas outlet; the primary heat conduction mechanism exchanges heat with the flue gas through the plurality of heat conduction plates and the first heat exchange tubes;

[0009] A secondary heat-conducting mechanism, which is arranged at the center of the primary heat-conducting mechanism, and which diverts and conducts part of the heat of the primary heat-conducting mechanism through a heat-conducting frame therein, and performs heat exchange with the heat-conducting oil inside the heat-conducting frame and the second heat exchange pipe to improve the utilization rate of the flue gas heat;

[0010] A three-stage heat-conducting mechanism, wherein the three-stage heat-conducting mechanism is arranged on the outer ring of the first-stage heat-conducting mechanism, wherein the three-stage heat-conducting mechanism collects the heat radiated to the outside by the first-stage heat-conducting mechanism through the heat-conducting fins therein, and keeps the outside of the first-stage heat-conducting mechanism warm, wherein the three-stage heat-conducting mechanism comprises a heat-conducting cylinder, wherein the heat-conducting cylinder is fixedly mounted on the outer wall of the heat-conducting plate through a steel frame, wherein the heat-conducting cylinder wraps the heat-conducting plate and the side cover inside thereof, and wherein the heat-conducting fins are integrally formed on the inner wall and the outer wall of the heat-conducting cylinder;

[0011] A cleaning mechanism is arranged on the outer ring of the primary heat-conducting mechanism, and the cleaning mechanism cleans the inside of the primary heat-conducting mechanism through a high-pressure nozzle therein.

[0012] Optionally, the side cover is installed at one end of the flue gas channel, several heat conduction plates are fixedly installed at one end of the side cover, and the heat conduction plate adjacent to the side cover is welded to the side cover, and the adjacent heat conduction plates are fixed by welding, several connecting holes are opened at one end of the heat conduction plate, and the positions of the connecting holes on adjacent heat conduction plates are staggered with each other, the second mounting hole is opened at the center of one end of the heat conduction plate, several first heat exchange tubes are arranged on the heat conduction plate, and the flue gas outlet is fixedly installed at one end of one of the heat conduction plates, and the flue gas outlet corresponds to the position of the connecting hole on the connected heat conduction plate.

[0013] Optionally, a plurality of shunt connecting pipes are fixedly installed at one end of the smoke channel, and the other end of the shunt connecting pipe is fixedly installed on one end of the side cover, the shunt connecting pipe is connected to the smoke channel, and the shunt connecting pipe is connected to the side cover and the space between the heat conduction plate, and a plurality of first mounting holes are fixedly installed at one end of the heat conduction plate, and the first heat exchange tube is fixedly installed on the heat conduction plate through the corresponding first mounting holes.

[0014] Optionally, both ends of the inlet and outlet of the first heat exchange tube extend to one side of the end surface of one of the heat conduction plates, and heat exchange tube connecting frames are fixedly installed at both ends of the inlet and outlet of the first heat exchange tube, and a heat conductive ring is fixedly installed in the middle of the inner wall of the heat exchange tube connecting frame, and the interior of the heat exchange tube connecting frame is separated by the heat conductive ring to form a first cavity and a second cavity, one end of the first heat exchange tube inlet extends to the interior of the second cavity, and one end of the first heat exchange tube outlet extends to the interior of the first cavity, and a first tube body and a second tube body are fixedly installed at one end of the heat exchange tube connecting frame, the first tube body extends to the interior of the second cavity, and the second tube body extends to the interior of the first cavity.

[0015] Optionally, the secondary heat conducting mechanism includes a mounting cover, a heat insulating sealing cover, an inlet pipe and an outlet pipe, the mounting cover is arranged at one end of the side cover, the mounting cover is fixedly installed on one side of the side cover by welding or bolting, the heat conducting frame is fixedly installed on one end of the mounting cover, the heat conducting frame is fixedly installed on the inner wall of the second mounting hole, the heat conducting oil is filled in the heat conducting frame, the heat insulating sealing cover is fixedly installed at one end of the heat conducting frame, the inlet pipe and the outlet pipe are fixedly installed on the outer end surface of the heat insulating sealing cover, and one end of the inlet pipe and the outlet pipe extends into the heat conducting frame, the second heat exchange tube is arranged in the heat conducting frame, the heat conducting frame is in a threaded shape, and both ends of the heat conducting frame are respectively fixedly installed on one end of the inlet pipe and the outlet pipe extending to the inside of the heat conducting frame.

[0016] Optionally, the three-stage heat conduction mechanism also includes a heat exchange input pipe, a plurality of water tanks, a plurality of heat exchange output pipes, an exhaust valve, a steam output pipe and a heat-insulating outer shell, the heat-insulating outer shell is fixedly installed on the outer wall of the heat-conducting tube, a plurality of the water tanks are fixedly installed on the inner wall of the heat-insulating outer shell, a plurality of the heat exchange output pipes are fixedly installed on the heat-conducting fins on the outer wall of the heat-conducting tube, the heat exchange output pipe is fixedly installed on the bottom of the water tank, the exhaust valve is fixedly installed on the top of the water tank, the steam output pipe is fixedly installed on one end of the exhaust valve, a mounting plate is fixedly installed on one end of the outer wall of the heat-conducting tube, and the heat-insulating outer shell is fixedly installed on one end of the mounting plate by means of a flange connection.

[0017] Optionally, one end of the heat exchange input pipe extends to the outside of the insulating shell, the other end of the heat exchange input pipe passes through a plurality of the heat conductive fins and is fixedly installed on the top of the water tank, one end of the heat exchange output pipe extends to the outside of the insulating shell, and one end of the steam output pipe extends to the outside of the insulating shell.

[0018] Optionally, the cleaning mechanism includes a plurality of mounting slots, a plurality of first fixed plates, a water inlet pipe, a drain pipe, a branch pipe, and a second fixed plate, wherein the plurality of mounting slots are opened on the outer wall of the heat conducting plate, and the plurality of first fixed plates are welded and fixed to the outer wall of the heat conducting plate, the first fixed plate is opposite to the mounting slot, the water inlet pipe is fixedly mounted on the inner wall of the first fixed plate, the outer wall of the water inlet pipe is provided with a plurality of water outlets, and the plurality of water outlets extend to the corresponding mounting slots on the outer wall of the heat conducting plate, the high-pressure nozzle is fixedly mounted on the slot wall of the mounting slot, one end of the water outlet on the outer wall of the water inlet pipe is engaged with the inlet end of the high-pressure nozzle, the second fixed plate is welded and fixedly mounted on the outer wall of the heat conducting plate, the drain pipe is fixedly mounted on the inner wall of the second fixed plate, and the plurality of branch pipes are fixedly mounted on the outer wall of the drain pipe, and the branch pipes extend between adjacent heat conducting plates.

[0019] Optionally, the first fixing plate is located at the upper part of the outer wall of the heat conducting plate, the second fixing plate is located at the bottom of the heat conducting plate, one end of the water inlet pipe and the drain pipe extends to the outside of the insulation shell, and one end of the high-pressure nozzle extends to the inside of the corresponding connecting hole.

[0020] An energy storage method for an industrial waste heat recovery and utilization system comprises the following steps:

[0021] S1, the flue gas outlet is connected to the purifier, the purifier is connected to the flue gas channel through a pipeline, and the flue gas passes through the gap between the heat conduction plates;

[0022] S2, the first heat exchange tube is connected to the heat exchange tube connection frame, and one end of the first tube body and the second tube body are respectively connected to two ends of the circulating water pump in the prior art;

[0023] S3, circulating the internal heat exchange fluid through the operation of the circulating water pump;

[0024] S4. The outer wall of the outlet pipe is in the heat pump system in the prior art. The heat exchange fluid flows through the evaporator system in the heat pump, and the heat in the heat exchange fluid is replaced by the refrigerant in the evaporator system, and energy is stored by the heat pump.

[0025] The present invention has at least the following beneficial effects:

[0026] (1) In this scheme, heat is exchanged through the heat exchange liquid circulating inside the first heat exchange tube. The secondary heat conduction mechanism is arranged at the center of the primary heat conduction mechanism, which can heat exchange and transport the heat dissipated to the center by the heat conduction plate, thereby increasing the utilization efficiency of the waste heat of the flue gas. The third-level heat conduction mechanism can block the heat dissipated to the periphery by the primary heat conduction mechanism and exchange heat through the heat exchange input pipe and the heat exchange output pipe therein, so that the water inside the water tank boils and produces steam, which is output from the steam output pipe for heat exchange. By exchanging the temperatures of different areas at multiple levels, the utilization efficiency of the waste heat in the flue gas can be improved.

[0027] (2) This solution uses a water pump to transport hot water, which is sprayed out through a high-pressure nozzle to directly clean the heat transfer plate. The waste water is discharged through the drain pipe at the bottom, which can prevent the impurities in the flue gas from adhering to and clogging between the heat transfer plates and affecting the transmission of the flue gas.

[0028] (3) In this scheme, by providing a heat exchange tube connection frame and a heat conduction ring, the heat exchange fluid flowing through the first heat exchange tube conducts heat through the heat conduction ring and the already heated heat exchange fluid when it flows in, so that the heat exchange fluid when it flows in can be initially heated, so that the heat exchange fluid can be heated more quickly, thereby increasing the heat exchange efficiency of the heat exchange fluid;

[0029] (4) This solution realizes rapid heat transfer of waste heat dissipated to the outside by setting the three-stage heat transfer mechanism as steam heat exchange, which is convenient for collecting low-temperature waste heat and highly efficient and energy-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0031] Figure 1 It is a schematic diagram of the structure of the present invention;

[0032] Figure 2 It is a cross-sectional view of the heat-insulating housing of the present invention;

[0033] Figure 3 It is a cross-sectional view of the heat-conducting tube of the present invention;

[0034] Figure 4 It is a side sectional view of the present invention;

[0035] Figure 5 This is the installation diagram of the water inlet pipe of the present invention;

[0036] Figure 6 This is a diagram of the installation of the drainage pipe of the present invention;

[0037] Figure 7 It is a cross-sectional view of the heat-conducting frame of the present invention;

[0038] Figure 8 This is the installation diagram of the first heat exchange tube of the present invention;

[0039] Fig. 9 For the present invention Figure 4 Enlarged view of point A in the middle;

[0040] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0041] 1. Smoke channel; 101. Diversion connecting pipe; 102. Side cover; 103. Heat conducting plate; 104. Connecting hole; 105. First mounting hole; 106. Second mounting hole; 107. First heat exchange tube; 108. Smoke outlet; 2. Heat conducting tube; 201. Heat conducting fin; 202. Heat exchange input pipe; 203. Water tank; 204. Heat exchange output pipe; 205. Exhaust valve; 206. Steam output pipe; 207. Heat insulation shell; 208. Mounting plate; 3. Mounting cover; 3 01. Heat transfer frame; 302. Heat transfer oil; 303. Second heat exchange tube; 304. Heat insulation sealing cover; 305. Inlet pipe; 306. Outlet pipe; 4. Heat exchange tube connection frame; 401. First cavity; 402. Second cavity; 403. Heat transfer ring; 404. First tube body; 405. Second tube body; 5. Installation notch; 501. First fixing plate; 502. Water inlet pipe; 503. High-pressure nozzle; 504. Drain pipe; 505. Branch pipe; 506. Second fixing plate. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] See also Figure 1-Figure 9The present invention provides an industrial waste heat recovery and utilization system and an energy storage method, comprising a flue gas channel 1, the flue gas channel 1 is arranged in an industrial waste gas emission system; a primary heat conduction mechanism, the primary heat conduction mechanism is arranged on one side of the flue gas channel 1, and the primary heat conduction mechanism exchanges heat with the flue gas through a plurality of heat conduction plates 103 and a first heat exchange tube 107 therein; a secondary heat conduction mechanism, the secondary heat conduction mechanism is arranged in the central part of the primary heat conduction mechanism, and the secondary heat conduction mechanism improves the utilization rate of the flue gas heat through the heat conduction frame 301 therein; a tertiary heat conduction mechanism, the tertiary heat conduction mechanism is arranged on the outer ring of the primary heat conduction mechanism, and the tertiary heat conduction mechanism collects the heat radiated to the outside by the primary heat conduction mechanism through the heat conduction fins 201 therein; a cleaning mechanism, the cleaning mechanism is arranged on the outer ring of the primary heat conduction mechanism, and the cleaning mechanism cleans the inside of the primary heat conduction mechanism through the high-pressure nozzle 503 therein; by arranging the primary heat conduction mechanism, the secondary heat conduction mechanism and the tertiary heat conduction mechanism, multi-level heat conduction is performed on the high-temperature exhaust gas, and the primary heat conduction mechanism The mechanism is in direct contact with the high-temperature exhaust gas, and the heat is conducted out through the heat conduction plate 103, and the heat is exchanged through the heat exchange liquid circulating in the first heat exchange tube 107. The secondary heat conduction mechanism is arranged at the center of the primary heat conduction mechanism, and the heat dissipated to the center by the heat conduction plate 103 can be exchanged and transported, thereby increasing the utilization efficiency of the waste heat of the flue gas. The tertiary heat conduction mechanism can collect the heat dissipated to the periphery by the primary heat conduction mechanism, and insulate the outside of the primary heat conduction mechanism, and exchange heat through the heat exchange input pipe 202 and the heat exchange output pipe 204, so that the water in the water tank 203 boils and produces steam, which is output from the steam output pipe 206 for heat exchange. By exchanging the temperatures of different areas at multiple levels, the utilization efficiency of the waste heat in the flue gas can be improved. In this example, by arranging the heat conduction plate 103 and the flue gas passing through the gaps between the heat conduction plates 103, the gaps between the heat conduction plates 103 can be filled more quickly, so that the heat conduction plates 103 can conduct heat more quickly.

[0044] In some embodiments, see Figure 2 , Figure 3 , Figure 4 , Figure 8The primary heat conduction mechanism includes a side cover 102, a plurality of communication holes 104, a second mounting hole 106, a plurality of first heat exchange tubes 107 and a smoke outlet 108. The side cover 102 is mounted at one end of the smoke channel 1. A plurality of heat conduction plates 103 are fixedly mounted at one end of the side cover 102. The heat conduction plates 103 adjacent to the side cover 102 are welded to the side cover 102. Adjacent heat conduction plates 103 are fixed by welding. A plurality of communication holes 104 are opened at one end of the heat conduction plates 103. The positions of the communication holes 104 on adjacent heat conduction plates 103 are staggered. The second mounting hole 106 is opened at the center of one end of the heat conduction plate 103. A plurality of first heat exchange tubes 107 are arranged on the heat conduction plates 103. The smoke outlet 108 is fixedly mounted at one end of one of the heat conduction plates 103. , and the smoke outlet 108 corresponds to the position of the connecting hole 104 on the connected heat conduction plate 103, the secondary heat conduction mechanism includes a mounting cover 3, heat conduction oil 302, a second heat exchange tube 303, a heat insulation sealing cover 304, an inlet pipe 305 and an outlet pipe 306, the mounting cover 3 is arranged at one end of the side cover 102, the mounting cover 3 is installed on one side of the side cover 102 by welding or bolting, the heat conduction frame 301 is fixedly installed at one end of the mounting cover 3, the heat conduction frame 301 is fixedly installed on the inner wall of the second mounting hole 106, the heat conduction oil 302 is filled in the heat conduction frame 301, the heat insulation sealing cover 304 is fixedly installed at one end of the heat conduction frame 301, the inlet pipe 305 and the outlet pipe 306 are fixedly installed on the outer end surface of the heat insulation sealing cover 304, and the inlet pipe 305 and One end of the outlet pipe 306 extends to the inside of the heat-conducting frame 301, and the second heat exchange pipe 303 is arranged inside the heat-conducting frame 301. The heat-conducting frame 301 is in a threaded shape. The two ends of the heat-conducting frame 301 are respectively fixedly installed on the inlet pipe 305 and the outlet pipe 306 extending to one end of the inside of the heat-conducting frame 301. The three-stage heat-conducting mechanism includes a heat-conducting tube 2, a heat-exchange input pipe 202, a plurality of water tanks 203, a plurality of heat-exchange output pipes 204, an exhaust valve 205, a steam output pipe 206 and a heat-insulating shell 207. The heat-conducting tube 2 is fixedly installed on the outer wall of the heat-conducting plate 103 through a steel frame. The heat-conducting tube 2 wraps the heat-conducting plate 103, the side cover 102 and the heat-exchange tube connecting frame 4 inside it. A plurality of heat-conducting fins 201 are integrally formed on the inner wall and the outer wall of the heat-conducting tube 2. The heat-insulating shell 207 is fixedly installed on the outer wall of the heat-conducting plate 103. The heat-conducting tube 2 is fixedly mounted on the outer wall of the heat-conducting tube 2, a plurality of water tanks 203 are fixedly mounted on the inner wall of the heat-insulating shell 207, a plurality of heat-exchange output pipes 204 are fixedly mounted on the heat-conducting fins 201 on the outer wall of the heat-conducting tube 2, the heat-exchange output pipe 204 is fixedly mounted on the bottom of the water tank 203, the exhaust valve 205 is fixedly mounted on the top of the water tank 203, the steam output pipe 206 is fixedly mounted on one end of the exhaust valve 205, a mounting plate 208 is fixedly mounted on one end of the outer wall of the heat-conducting tube 2, and the heat-insulating shell 207 is fixedly mounted on one end of the mounting plate 208 by means of a flange connection. In this example, the first heat-exchange tube 107 is connected through a heat-exchange tube connecting frame 4, and one end of the first tube body 404 and the second tube body 405 are respectively connected to the two ends of the circulating water pump in the prior art to circulate the internal heat-exchange fluid.And the outer wall of the outlet pipe 306 is in the heat pump system in the prior art, the heat exchange liquid flows through the evaporator system in the heat pump, and the heat in the heat exchange liquid is replaced by the refrigerant in the evaporator system to achieve heat exchange. The heat exchange principle of the inlet pipe 305, the outlet pipe 306, and the steam output pipe 206 is similar to the above. The high-temperature steam in the steam output pipe 206 is directly input into the evaporator system of the heat pump without a circulation process. By setting the three-stage heat conduction mechanism as steam heat exchange, the rapid heat transfer of the waste heat dissipated to the outside is realized, which is convenient for collecting low-temperature waste heat and highly efficient and energy-saving.

[0045] In some embodiments, see Figure 4 , Figure 7 , Fig. 9 A plurality of shunt connecting pipes 101 are fixedly installed at one end of the flue gas channel 1, and the other end of the shunt connecting pipe 101 is fixedly installed at one end of the side cover 102. The shunt connecting pipe 101 is connected to the flue gas channel 1, and the shunt connecting pipe 101 is connected to the space between the side cover 102 and the heat conducting plate 103. A plurality of first mounting holes 105 are fixedly installed at one end of the heat conducting plate 103. The first heat exchange pipe 107 is fixedly installed on the heat conducting plate 103 through the corresponding first mounting holes 105. Both the inlet and outlet ends of the first heat exchange pipe 107 extend to one side of the end face of one of the heat conducting plates 103. Both the inlet and outlet ends of the first heat exchange pipe 107 are fixedly installed with a heat exchange pipe connecting frame 4. A heat conducting ring 403 is fixedly installed in the middle of the inner wall of the heat exchange pipe connecting frame 4. The interior of the heat exchange pipe connecting frame 4 is connected by heat conduction. The ring 403 separates the first cavity 401 and the second cavity 402, the inlet end of the first heat exchange tube 107 extends to the inside of the second cavity 402, and the outlet end of the first heat exchange tube 107 extends to the inside of the first cavity 401, and the first tube body 404 and the second tube body 405 are fixedly installed on one end of the heat exchange tube connection frame 4, the first tube body 404 extends to the inside of the second cavity 402, and the second tube body 405 extends to the inside of the first cavity 401; by setting the heat exchange tube connection frame 4 and the heat conductive ring 403, the heat exchange fluid flowing through the first heat exchange tube 107 conducts heat through the heat conductive ring 403 and the already heated heat exchange fluid when flowing in, so that the heat exchange fluid when flowing in has preliminary waste heat, so that the heat exchange fluid can be heated more quickly, thereby increasing the heat exchange efficiency of the heat exchange fluid.

[0046] In some embodiments, see Figure 2 , Figure 4 One end of the heat exchange input pipe 202 extends to the outside of the heat insulation shell 207, and the other end of the heat exchange input pipe 202 passes through a plurality of heat-conducting fins 201 and is fixedly installed on the top of the water tank 203. One end of the heat exchange output pipe 204 extends to the outside of the heat insulation shell 207, and one end of the steam output pipe 206 extends to the outside of the heat insulation shell 207. One end of the heat exchange output pipe 204 and the heat exchange input pipe 202 are connected to a water pump in the prior art to realize the rapid flow and addition of water.

[0047] In some embodiments, see Figure 5 , Figure 6 The cleaning mechanism includes a plurality of mounting slots 5, a plurality of first fixing plates 501, a water inlet pipe 502, a drain pipe 504, a branch pipe 505 and a second fixing plate 506. The plurality of mounting slots 5 are provided on the outer wall of the heat conducting plate 103. The plurality of first fixing plates 501 are welded and fixed to the outer wall of the heat conducting plate 103. The first fixing plates 501 are opposite to the mounting slots 5. The water inlet pipe 502 is fixedly installed on the inner wall of the first fixing plates 501. The outer wall of the water inlet pipe 502 is provided with a plurality of water flow outlets. The plurality of water flow outlets extend to the corresponding mounting slots 5 on the outer wall of the heat conducting plate 103. The high-pressure nozzle 503 is fixedly installed on the groove wall of the mounting slot 5. One end of the water flow outlet on the outer wall of the water inlet pipe 502 is engaged with the inlet end of the high-pressure nozzle 503. The second fixing plate 506 is welded and fixedly installed on the outer wall of the heat conducting plate 103. The drain pipe 504 is fixedly installed on the outer wall of the heat conducting plate 103. It is installed on the inner wall of the second fixed plate 506, and several branch pipes 505 are fixedly installed on the outer wall of the drain pipe 504. The branch pipes 505 extend between adjacent heat conducting plates 103. The first fixed plate 501 is located at the upper part of the outer wall of the heat conducting plate 103, and the second fixed plate 506 is located at the bottom of the heat conducting plate 103. One end of the water inlet pipe 502 and the drain pipe 504 extend to the outside of the heat insulating shell 207, and one end of the high-pressure nozzle 503 extends to the inside of the corresponding connecting hole 104; by setting the water inlet pipe 502, a water pump in the prior art is set at one end of the water inlet pipe 502, and hot water is transported by the water pump. The hot water is sprayed through the high-pressure nozzle 503, and the heat conducting plates 103 can be cleaned. The waste water is discharged through the drain pipe 504 at the bottom, which can prevent the impurities in the flue gas that are not completely purified from adhering to and clogging between the heat conducting plates 103, thereby affecting the transmission of the flue gas.

[0048] Energy storage method of the present invention: In this example, the flue gas exhaust port is connected to the purifier, and the purifier is connected to the flue gas channel 1 through a pipeline. The flue gas passes through the gap between the heat conduction plates 103, and can fill the gap between the heat conduction plates 103 more quickly. The first heat exchange tube 107 is connected to the heat exchange tube connection frame 4, and one end of the first tube body 404 and the second tube body 405 are respectively connected to the two ends of the circulating water pump in the prior art to circulate the internal heat exchange fluid, and the outer wall of the outlet pipe 306 is in the heat pump system in the prior art. The heat exchange fluid flows through the evaporator system in the heat pump, and the heat in the heat exchange fluid is replaced by the refrigerant in the evaporator system to achieve heat exchange.

[0049] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0050] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An industrial waste heat recovery and utilization system, characterized in that: include: A smoke channel (1), wherein the smoke channel (1) is arranged in an industrial waste gas emission system; A primary heat-conducting mechanism, the primary heat-conducting mechanism being arranged at one side of the flue gas passage (1), the primary heat-conducting mechanism comprising a side cover (102), a plurality of heat-conducting plates (103), a plurality of communicating holes (104), a second mounting hole (106), a plurality of first heat-exchange tubes (107) and a flue gas outlet (108), the primary heat-conducting mechanism exchanging heat with the flue gas through the plurality of heat-conducting plates (103) and the first heat-exchange tubes (107); the side cover (102) being installed at one end of the flue gas passage (1), the plurality of communicating holes (104), a second mounting hole (106), a plurality of first heat-exchange tubes (107) and a flue gas outlet (108); A heat conducting plate (103) is fixedly mounted on one end of the side cover (102); a plurality of the communication holes (104) are opened at one end of the heat conducting plate (103); the communication holes (104) on adjacent heat conducting plates (103) are staggered; the second mounting hole (106) is opened at the center of one end of the heat conducting plate (103); a plurality of the first heat exchange tubes (107) are arranged on the heat conducting plate (103); the smoke outlet (108) is fixedly mounted on one end of one of the heat conducting plates (103); and the The smoke outlet (108) corresponds to the position of the connecting hole (104) on the connected heat conducting plate (103); both ends of the inlet and outlet of the first heat exchange tube (107) extend to one side of the end surface of one of the heat conducting plates (103); a heat exchange tube connecting frame (4) is fixedly installed at both ends of the inlet and outlet of the first heat exchange tube (107); a heat conduction ring (403) is fixedly installed in the middle of the inner wall of the heat exchange tube connecting frame (4); the interior of the heat exchange tube connecting frame (4) is separated by the heat conduction ring (403) to form a first heat exchange tube. A cavity (401) and a second cavity (402), wherein an inlet end of the first heat exchange tube (107) extends into the interior of the second cavity (402), and an outlet end of the first heat exchange tube (107) extends into the interior of the first cavity (401); a first tube body (404) and a second tube body (405) are fixedly mounted on one end of the heat exchange tube connection frame (4), the first tube body (404) extends into the interior of the second cavity (402), and the second tube body (405) extends into the interior of the first cavity (401); A secondary heat conducting mechanism, the secondary heat conducting mechanism being arranged at the central part of the primary heat conducting mechanism, the secondary heat conducting mechanism diverting and exporting part of the heat of the primary heat conducting mechanism through a heat conducting frame (301) therein, and performing heat exchange through the internal heat conducting oil (302) of the heat conducting frame (301) and the second heat exchange tube (303) to improve the utilization rate of the heat of the flue gas; The secondary heat conduction mechanism comprises a mounting cover (3), an inlet pipe (305) and an outlet pipe (306); the heat conduction frame (301) is fixedly mounted on one end of the mounting cover (3); the heat conduction frame (301) is fixedly mounted on the inner wall of the second mounting hole (106); the heat conduction oil (302) is filled in the heat conduction frame (301); one end of the inlet pipe (305) and the outlet pipe (306) extend into the heat conduction frame (301); and the second heat exchange pipe (303) is arranged in the heat conduction frame (301); A three-stage heat-conducting mechanism, wherein the three-stage heat-conducting mechanism is arranged on the outer ring of the first-stage heat-conducting mechanism, wherein the three-stage heat-conducting mechanism collects heat radiated to the outside by the first-stage heat-conducting mechanism through the heat-conducting fins (201) therein, and insulates the outside of the first-stage heat-conducting mechanism, wherein the three-stage heat-conducting mechanism comprises a heat-conducting cylinder (2), a plurality of water tanks (203), a plurality of heat-exchange output pipes (204), an exhaust valve (205) and a steam output pipe (206), wherein the three-stage heat-conducting mechanism further comprises a heat-exchange input pipe (202), wherein one end of the heat-exchange input pipe (202) passes through a plurality of the heat-conducting fins (201) and is fixedly installed on the top of the water tank (203), wherein the heat-exchange input pipe (202) is provided at a position which is close to the heat-conducting fins (201) and is provided at a position which is close to the heat-conducting fins (201). The heat-conducting tube (2) is fixedly mounted on the outer wall of the heat-conducting plate (103) via a steel frame; the heat-conducting tube (2) wraps the heat-conducting plate (103) and the side cover (102) inside; a plurality of heat-exchange output pipes (204) are fixedly mounted on the heat-conducting fins (201) on the outer wall of the heat-conducting tube (2); the heat-exchange output pipes (204) are fixedly mounted on the bottom of the water tank (203); the exhaust valve (205) is fixedly mounted on the top of the water tank (203); the steam output pipe (206) is fixedly mounted on one end of the exhaust valve (205); and the heat-conducting fins (201) are integrally formed on the inner wall and the outer wall of the heat-conducting tube (2); A cleaning mechanism, wherein the cleaning mechanism is arranged on the outer ring of the primary heat conducting mechanism, and the cleaning mechanism cleans the interior of the primary heat conducting mechanism through a high-pressure nozzle (503) therein.

2. The industrial waste heat recovery system according to claim 1, characterized in that: The heat conducting plates (103) adjacent to the side cover (102) are connected to the side cover (102) by welding, and the adjacent heat conducting plates (103) are fixed by welding.

3. The industrial waste heat recovery system according to claim 2, characterized in that: A plurality of flow-dividing connecting pipes (101) are fixedly mounted on one end of the flue gas channel (1), and the other end of the flow-dividing connecting pipe (101) is fixedly mounted on one end of the side cover (102). The flow-dividing connecting pipe (101) is in communication with the flue gas channel (1), and the flow-dividing connecting pipe (101) is in communication with the side cover (102) and the space between the heat conducting plate (103). A plurality of first mounting holes (105) are fixedly mounted on one end of the heat conducting plate (103), and the first heat exchange pipe (107) passes through the corresponding first mounting holes (105) and is fixedly mounted on the heat conducting plate (103).

4. The industrial waste heat recovery and utilization system according to claim 1, characterized in that: The secondary heat conduction mechanism further comprises a heat-insulating sealing cover (304), the mounting cover (3) being arranged at one end of the side cover (102), the mounting cover (3) being fixedly mounted on one side of the side cover (102) by welding or bolt connection, the heat-insulating sealing cover (304) being fixedly mounted on one end of the heat-conducting frame (301), and the inlet pipe (305) and the outlet pipe (306) being fixedly mounted on the outer end surface of the heat-insulating sealing cover (304).

5. The industrial waste heat recovery system according to claim 1, characterized in that: The three-stage heat conduction mechanism further comprises a heat-insulating outer shell (207), the heat-insulating outer shell (207) being fixedly mounted on the outer wall of the heat-conducting cylinder (2), a plurality of water tanks (203) being fixedly mounted on the inner wall of the heat-insulating outer shell (207), a mounting plate (208) being fixedly mounted on one end of the outer wall of the heat-conducting cylinder (2), and the heat-insulating outer shell (207) being fixedly mounted on one end of the mounting plate (208) by means of a flange connection.

6. The industrial waste heat recovery and utilization system according to claim 5, characterized in that: The other end of the heat exchange input pipe (202) extends to the outside of the heat insulation shell (207), one end of the heat exchange output pipe (204) extends to the outside of the heat insulation shell (207), and one end of the steam output pipe (206) extends to the outside of the heat insulation shell (207).

7. The industrial waste heat recovery and utilization system according to claim 5, characterized in that: The cleaning mechanism comprises a plurality of mounting notches (5), a plurality of first fixing plates (501), a water inlet pipe (502), a drain pipe (504), a branch pipe (505) and a second fixing plate (506); a plurality of the mounting notches (5) are provided on the outer wall of the heat conducting plate (103); a plurality of the first fixing plates (501) are welded and fixed to the outer wall of the heat conducting plate (103); the first fixing plates (501) and the mounting notches (5) are positioned opposite to each other; the water inlet pipe (502) is fixedly mounted on the inner wall of the first fixing plate (501); a plurality of water outlets are provided on the outer wall of the water inlet pipe (502); a plurality of water outlets are provided on the outer wall of the water inlet pipe (502); The outlet of the water inlet pipe (502) extends to the inside of the installation slot (5) corresponding to the outer wall of the heat conducting plate (103); the high-pressure nozzle (503) is fixedly mounted on the slot wall of the installation slot (5); one end of the water outlet on the outer wall of the water inlet pipe (502) is engaged with the inlet end of the high-pressure nozzle (503); the second fixing plate (506) is welded and fixedly mounted on the outer wall of the heat conducting plate (103); the drainage pipe (504) is fixedly mounted on the inner wall of the second fixing plate (506); a plurality of branch pipes (505) are fixedly mounted on the outer wall of the drainage pipe (504); and the branch pipes (505) extend between adjacent heat conducting plates (103).

8. The industrial waste heat recovery system according to claim 7, characterized in that: The first fixing plate (501) is located at the upper portion of the outer wall of the heat conducting plate (103), the second fixing plate (506) is located at the bottom of the heat conducting plate (103), one end of the water inlet pipe (502) and the drain pipe (504) extend to the outside of the heat insulating shell (207), and one end of the high-pressure nozzle (503) extends to the inside of the corresponding connecting hole (104).

9. An energy storage method for an industrial waste heat recovery system, characterized in that: The method is implemented based on an industrial waste heat recovery and utilization system according to any one of claims 1 to 8, and the method comprises the following steps: S1, the flue gas outlet is connected to the purifier, the purifier is connected to the flue gas channel through a pipeline, and the flue gas passes through the gap between the heat conduction plates; S2, the first heat exchange tube is connected to the heat exchange tube connection frame, and one end of the first tube body and the second tube body are respectively connected to two ends of the circulating water pump; S3, circulating the internal heat exchange fluid through the operation of the circulating water pump; S4. The outer wall of the outlet pipe is placed in the heat pump system. The heat exchange fluid flows through the evaporator system in the heat pump. The heat in the heat exchange fluid is replaced by the refrigerant in the evaporator system, and energy is stored through the heat pump.

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