Heat recovery energy-saving treatment device
By combining heat exchange components and dust removal components, the problems of low waste heat recovery efficiency and high maintenance difficulty in metal parts processing are solved, achieving efficient and long-life waste heat recovery and purification effects.
Patent Information
- Application Number
- CN202511819206.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-04
- Publication Date
- 2026-02-27
AI Technical Summary
In existing technologies, the waste heat recovery efficiency generated during metal processing is low, and conventional heat exchangers have limited efficiency and service life in high-temperature, dusty, and corrosive gas environments, resulting in high maintenance difficulty and cost.
It adopts a combination of heat exchange components, dust removal components and thermal energy storage components, including a cyclone separator, filter screen, heat exchanger, thermal storage tank and circulation pump. Large dust particles are removed by the cyclone separator, further purified by the filter screen, and the heat exchanged medium is stored in the thermal storage tank. The filter screen has a self-cleaning function by combining an adaptive mesh support structure and a drive structure.
It improves heat recovery efficiency, extends the service life of the device, reduces maintenance difficulty, and achieves long-term, stable and efficient waste heat recovery and dust removal and purification.
Smart Images
Figure CN121576804A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of energy-saving devices, in particular to a heat recovery energy-saving treatment device. BACKGROUND
[0002] In the process of metal part processing, especially in the process links of high-temperature forging, heat treatment, etc., a large amount of waste heat will be generated. At present, the industry generally adopts the way of cooling tower or direct discharge to deal with these waste heat, which leads to serious energy waste.
[0003] With the increasing strictness of environmental protection regulations and the rise of energy costs, how to efficiently recover and utilize these waste heat has become a problem to be solved in the industry.
[0004] In recent years, some enterprises have tried to recover waste heat through heat exchangers, but due to the particularity of the metal part processing environment (such as high temperature, dust, corrosive gas, etc.), the efficiency and service life of conventional heat exchangers are greatly limited, and the maintenance difficulty and cost of conventional heat exchangers are also significantly increased.
[0005] Therefore, there is an urgent need for a device for recovering waste heat with high recovery efficiency, long service life and easy installation and maintenance. SUMMARY
[0006] The present application provides a heat recovery energy-saving treatment device, which can effectively improve the heat recovery efficiency, has a long service life and is easy to install and maintain, so as to effectively recover waste heat for a long time.
[0007] The present application provides a heat recovery energy-saving treatment device, which adopts the following technical scheme: A heat recovery energy-saving treatment device, comprising a heat exchange assembly, a dust removal assembly and a heat energy storage assembly; The heat exchange assembly comprises a heat exchanger and a flow guide cover; the flow guide cover is arranged at one end of the heat exchanger and is used for guiding cold material into the heat exchanger while reducing the impact force of the cold material on the heat exchanger; The dust removal assembly comprises a cyclone separator and a filter screen; the cyclone separator is arranged vertically, the inlet of the cyclone separator is provided for hot material to enter and the outlet thereof is connected and communicated with the heat exchanger; the filter screen is arranged between the cyclone separator and the heat exchanger, and the dust removal effect of the filter screen is higher than that of the cyclone separator; The heat energy storage assembly comprises a heat storage tank and a circulating pump; a pipeline is connected between the heat storage tank and the heat exchanger, and the space inside the heat storage tank is communicated with the outlet through which the cold material leaves the heat exchanger through the pipeline; the circulating pump is arranged on the heat storage tank and is used for driving the cold material to flow between the inside of the heat storage tank and the inside of the heat exchanger.
[0008] By adopting the above technical solution, the hot material (i.e., high-temperature waste gas) first enters the cyclone separator to remove large particles of dust, and then passes through the filter screen for further purification; the purified waste gas enters the heat exchanger to exchange heat with the cold material (i.e., the circulating medium, such as water or heat transfer oil); the cold material after heat exchange is then transported by the circulating pump to the heat storage tank for storage and backup; it can effectively improve the heat recovery efficiency, has a long service life and is easy to install and maintain, thus enabling long-term and effective waste heat recovery.
[0009] Optionally, the dust removal assembly includes a housing, a mesh support structure, and a drive structure; The housing is disposed between the cyclone separator and the heat exchanger. The interior of the housing has a ventilation space and a clearance space. The two ends of the ventilation space are respectively connected to the outlet of the cyclone separator and the inlet of the hot material of the heat exchanger. The clearance space is located on one side of the ventilation space and is connected to the ventilation space. The support mesh structure is disposed in the clearance space and includes a rotating ring; the rotating ring is rotatably connected to the housing, and its rotation axis coincides with its own axis and is parallel to the axis of the cyclone separator; the filter screen is disposed in the inner space of the rotating ring, and the filter screen remains to separate the ventilation space during the rotation of the rotating ring; The drive structure is disposed on the housing and located above the filter screen, and includes a rotating wheel; the rotating wheel is rotatably connected to the housing, and its rotation axis coincides with its own axis and is parallel to the rotation axis of the rotating ring; the rotating wheel is located above the rotating ring, and its bottom has a toothed ring structure distributed along its own circumference, and the top of the rotating ring also has a toothed ring structure distributed along its own circumference, and the toothed ring structure of the rotating wheel and the toothed ring structure of the rotating ring are engaged.
[0010] By adopting the above technical solution, when the filter screen in the ventilation space is blocked by dust while purifying exhaust gas, controlling the rotation of the rotating wheel can drive the rotating ring to rotate, thereby changing the area of the filter screen that purifies exhaust gas. This allows the filter screen to restore its purification effect on exhaust gas, reduces the maintenance difficulty of the dust removal components, and enables the dust removal components to operate stably for a long time.
[0011] Optionally, the drive structure may further include a moving part and a ball bearing; The movable component is vertically connected to the rotating wheel, located in the ventilation space, and its bottom contacts and abuts against the filter screen; the ball bearing is rolled on the movable component, and part of it is located on one side of the movable component in the radial direction. The inner side of the rotating wheel is provided with a spiral groove that is adapted to the ball, and the axis of the spiral trajectory of the spiral groove coincides with the axis of the rotating wheel. When the filter screen becomes clogged, the force of the heated material causes it to bulge upwards and deform, which in turn causes the movable part to move upwards. As the ball moves upwards with the movable part, it drives the rotating wheel to rotate, thereby driving the rotating ring to rotate.
[0012] By adopting the above technical solution, when the filter screen in the ventilation space is blocked by dust while purifying exhaust gas, the filter screen will bulge upward and deform under the action of exhaust gas, which can drive the moving parts to move and thus drive the rotating wheel to rotate. This allows the filter screen to automatically change the area it is used to purify exhaust gas according to the blockage situation.
[0013] Optionally, the drive structure further includes a filter element with a higher dust removal efficiency than the filter screen; the filter element is disposed at the bottom of the movable part and is adapted to the ventilation space.
[0014] By adopting the above technical solution, the purification effect of the dust removal component on the exhaust gas can be further improved, and the effect of the upward deformation of the filter screen driving the movement of the moving parts can be improved.
[0015] Optionally, the dust removal assembly further includes a resilient dust-removing blade; the dust-removing blade is fixedly connected to the housing and distributed in the clearance space near the ventilation space, the dust-removing blade is located above the filter screen and contacts and abuts against the filter screen.
[0016] By adopting the above technical solution, as the filter screen rotates with the rotating ring, the dust-removing plate can effectively reduce the probability of exhaust gas leaking into the clearance space. At the same time, it can help the dust clogging the filter screen fall off when the filter screen bulges and deforms upwards, thus having a certain unclogging effect.
[0017] Optionally, the edge portion of the filter sheet is magnetic, the interior of the dust removal plate has a magnetic layer, and the filter sheet and the dust removal plate are magnetically attracted to each other; The rotating wheel drives the rotating ring to rotate in one direction, causing the rotating wheel to rotate relative to the housing during the upward movement of the movable member; when the movable member moves downward to its limit position and the filter sheet comes into contact with the filter screen, the filter sheet comes into contact with the dust removal plate, causing the dust removal plate to remain in contact with the filter screen.
[0018] By adopting the above technical solution, when the filter moves downward to its limit position, the dust removal plate can be reset by magnetic attraction, so that the dust removal plate can restore its sealing and dust removal effect, and reduce the probability that the dust removal plate is difficult to recover after being bent and deformed by the force of the filter screen.
[0019] Optionally, the support structure further includes a rotating column, multiple elastic sheets, and elastic elements; The rotating column is rotatably mounted on the housing and located in the clearance space, and the axis of the rotating column coincides with the axis of the rotating ring; the elastic sheet is elastic, and its two ends are respectively connected to the rotating column and the rotating ring, and multiple elastic sheets are arranged in a circumferential array on the inner side of the rotating ring with the axis of the rotating ring as the axis; the filter screen is divided into multiple parts, and each part of the filter screen fills the space formed between adjacent elastic sheets; The two ends of the elastic element are connected to the rotating column and the housing, respectively, and it has the tendency to drive the rotating column to rotate relative to the rotating ring, causing the elastic sheet to stretch and bend and the filter screen to tighten.
[0020] By adopting the above technical solution, the upward deformation of the filter screen due to blockage will drive the rotating column to rotate relative to the rotating ring, thereby reducing the tension of the filter screen. When the filter screen changes its area for purifying exhaust gas and the deformation is released, the filter screen will tighten again. During this process, the dust blocking the filter screen can fall off easily, thereby further achieving the effect of clearing blockage.
[0021] Optionally, the support structure further includes a frame; the frame is fixedly connected to the rotating ring, and the rotating column is rotatably connected to the frame.
[0022] By adopting the above technical solution, the process of the rotating ring rotating as the filter screen bulges and deforms upwards is not contradictory to the process of the filter screen loosening and then tightening again due to local upward deformation. This improves the stability of the filter screen in achieving the unclogging effect during the above process.
[0023] Optionally, the dust removal assembly further includes a dust collection pipe; The dust collection pipe is located on one side of the cyclone separator in the radial direction. Its two ends are connected to the shell and the ash hopper at the bottom of the cyclone separator, respectively. Its two ends are connected to the bottom of the clearance space away from the ventilation space and the internal space of the ash hopper, respectively.
[0024] By adopting the above technical solution, the dust that gets clogged by the filter screen can be collected in the ash hopper of the cyclone separator through the dust collection pipe, which makes it convenient for staff to handle the dust in a unified manner.
[0025] Optionally, the top of the dust collection pipe is flared upwards, and the opening at the top of the dust collection pipe is adapted to the bottom of the clearance space.
[0026] By adopting the above technical solution, dust that has become clogged by the filter screen can be easily collected in the ash hopper of the cyclone separator through the dust collection pipe, effectively reducing the dead zones of dust collection.
[0027] In summary, this application includes at least one of the following beneficial effects: 1. It can effectively improve heat recovery efficiency, has a long service life and is easy to install and maintain, thus enabling long-term and effective waste heat recovery; 2. It enables the filter screen of the dust removal component to maintain long-term stability and further purify the exhaust gas, while effectively reducing its maintenance difficulty; 3. It can easily achieve self-adjustment and unclogging of the filter screen, and at the same time, it can easily collect the dust obtained after unclogging and the dust obtained from the cyclone separator for subsequent unified processing. Attached Figure Description
[0028] Figure 1 This is a schematic diagram of the structure of a heat recovery energy-saving treatment device according to Example 1; Figure 2 This is a schematic diagram of the internal structure of the dust removal component in Example 1; Figure 3 This is a schematic diagram of the dust removal component in Example 2; Figure 4 This is a schematic diagram of the internal structure of the dust removal component in Example 2; Figure 5 This is a schematic diagram of the structure of the internal filter of the housing in Example 2 when it is not clogged; Figure 6 This is a schematic diagram of the structure when the filter inside the housing is clogged in Example 2; Figure 7 This is a schematic diagram of the shell structure in the clearance space in Embodiment 2; Figure 8 yes Figure 5 Enlarged view of point A in the middle; Figure 9 yes Figure 5 Enlarged view of point B in the middle; Figure 10 yes Figure 6 Enlarged view of point C in the middle.
[0029] Explanation of reference numerals in the attached drawings: 1. Heat exchange assembly; 11. Heat exchanger; 12. Flow guide shroud; 2. Dust removal assembly; 21. Cyclone separator; 211. Ash hopper; 22. Filter screen; 221. Filter screen plate; 23. Shell; 231. Ventilation space; 232. Clearance space; 24. Support structure; 241. Rotating ring; 242. Frame; 243. Rotating column; 244. Elastic plate; 245. Elastic element; 25. Drive structure; 251. Rotating wheel; 2511. Spiral groove; 252. Moving part; 253. Ball bearing; 26. Dust removal plate; 27. Dust collection pipe; 3. Thermal energy storage assembly; 31. Thermal storage tank; 32. Circulation pump; 4. Filter plate. Detailed Implementation
[0030] The following is in conjunction with the appendix Figures 1-10 This application will be described in further detail.
[0031] This application discloses a heat recovery and energy-saving treatment device for recovering a large amount of waste heat (high-temperature waste gas) generated during the processing of metal parts, and effectively utilizing its thermal energy.
[0032] Example 1: Reference Figure 1 and Figure 2 The heat recovery and energy-saving treatment device includes a heat exchange component 1, a dust removal component 2, and a thermal energy storage component 3. The heat exchange component 1 is used to transfer heat from hot materials (i.e., waste heat) to cold materials; the dust removal component 2 is used to filter dust from the hot materials before heat exchange, reducing the impact of dust entering the heat exchange component 1; and the thermal energy storage component 3 is used to store the cold materials after heat exchange, thereby storing the thermal energy obtained from the heat exchange.
[0033] The heat exchange assembly 1 includes a heat exchanger 11 and a flow guide shroud 12.
[0034] The heat exchanger 11 has internal structures for guiding the flow of hot materials and structures for guiding the flow of cold materials, and the inlet and outlet of the hot materials are different from those of the cold materials. In this embodiment, the heat exchanger 11 is preferably a shell-and-tube heat exchanger 11, and preferably made of 316L stainless steel, which can withstand high temperatures up to 800°C; in other embodiments, the heat exchanger 11 may also adopt a plate-fin structure or a heat pipe array structure (when using a heat pipe array structure, the evaporation section of the heat pipe is placed in the hot materials and the condensation section is placed in the cold materials); since the shell-and-tube heat exchanger 11 is prior art in the art, it will not be described in detail here, and it is only briefly shown in the accompanying drawings.
[0035] The flow guide shroud 12 is fixedly installed at one end of the heat exchanger 11. Its internal space is divided into two spaces, which are respectively connected to the inlet and outlet of the heat exchanger 11 for the cold material. The cold material can be buffered in the flow guide shroud 12 before entering the heat exchanger 11 and after leaving the heat exchanger 11, thereby effectively reducing the impact of the cold material flow on the heat exchanger 11. In this embodiment, since the above-mentioned flow guide shroud 12 is prior art in the art, it will not be described in detail here, and it is only briefly shown in the accompanying drawings.
[0036] The dust removal assembly 2 includes a cyclone separator 21 and a filter screen 22. The cyclone separator 21 is used to remove large dust particles from the waste heat, while the filter screen 22 is used to filter and prevent small dust particles from the waste heat from entering the interior of the heat exchanger 11.
[0037] Cyclone separator 21 is fixedly installed vertically below heat exchanger 11. The outlet of cyclone separator 21 is located at its top and is connected to the inlet of the heat exchanger 11 for the heating material. A pipe extends outward from one side of cyclone separator 21, through which waste heat enters cyclone separator 21. The bottom of cyclone separator 21 has a dust hopper 211 for collecting large dust particles. Large dust particles in the waste heat entering cyclone separator 21 are separated from the waste heat under the action of centrifugal force and finally fall into dust hopper 211 for collection under gravity. Dust hopper 211 is detachably connected to the cyclone separator 21 body, which is convenient for personnel to dismantle it later and process the collected dust. In this embodiment, the cyclone separator 21 and the heat exchanger 11 are preferably fixedly connected by a flange connection, and the cyclone separator 21 is preferably a ceramic-lined model with excellent wear resistance. Since the cyclone separator 21 is the prior art in this field, it will not be described in detail here, and it is only briefly shown in the accompanying drawings.
[0038] A filter screen 22 is installed between the cyclone separator 21 and the heat exchanger 11. A pipe extends outward from the heat exchanger 11 for the installation of the cyclone separator 21, and the filter screen 22 is detachably connected to this pipe. After installation, the filter screen 22 forms an interception within the internal space of the pipe, positioned above the cyclone separator 21, and its dust removal efficiency is higher than that of the cyclone separator 21. In this embodiment, preferably, a slot communicating with its internal space is provided on the pipe, and the filter screen 22 is detachably connected via a snap-fit mechanism, facilitating timely replacement and cleaning of the filter screen 22 by personnel and protecting the dust removal assembly 2. Since the filter screen 22 and its detachable connection method are common existing technologies, they will not be described in detail here, and only a brief representation is given in the accompanying drawings.
[0039] The thermal energy storage component 3 includes a heat storage tank 31 and a circulation pump 32. The heat storage tank 31 is used to store the cold material after heat exchange, so as to store the heat energy obtained from the heat exchange; the circulation pump 32 is used to drive the cold material to circulate between the heat storage tank 31 and the heat exchanger 11. In this embodiment, the cold material is preferably the circulation medium (such as water or heat transfer oil).
[0040] Both the inlet and outlet of the heat storage tank 31 have pipes extending outwards, and both pipes are fixedly connected to the flow guide shroud 12 and communicate with two spaces inside the flow guide shroud 12 respectively. In this embodiment, it is preferred that the outlet of the heat storage tank 31 is located at the bottom of the heat storage tank 31 and the inlet of the heat storage tank 31 is located at the top of the heat storage tank 31; and it is preferred that the pipes are sealed with high-temperature gaskets.
[0041] The circulating pump 32 is fixedly installed at the bottom of the heat storage tank 31. It is used to drive the cold material in the heat storage tank 31 through the pipe into the guide shroud 12 and then into the heat exchanger 11, and then back into the guide shroud 12 and back into the heat storage tank 31 through the pipe, so as to realize the continuous heat exchange between the cold material and the hot material in the heat exchanger 11. In this embodiment, the circulating pump 32 is preferably a high-temperature resistant magnetic pump with good sealing performance. Before starting the circulating pump 32, it is necessary to check the liquid level of the circulating medium and the status of the pipe valves. Since the heat storage tank 31 and the circulating pump 32 are both existing technologies in the art, they will not be described in detail here, and they are only briefly shown in the drawings.
[0042] In practical applications, the heat storage component 3 recovers and stores heat, which can be used to preheat the fresh air entering the processing furnace, so that the waste heat can be utilized nearby.
[0043] The implementation principle of a heat recovery energy-saving treatment device according to an embodiment of this application is as follows: Waste heat (i.e., hot material) first enters the cyclone separator 21 through a pipeline for preliminary purification, removing large dust particles from the waste heat; then it passes through the filter screen 22 for secondary purification, removing small dust particles from the waste heat; next, the purified waste heat will flow into the heat exchanger 11; at the same time, the circulating pump 32 will drive the circulating medium (i.e., cold material) in the heat storage tank 31 to flow through the pipeline into the heat exchanger 11 and then flow back into the heat storage tank 31 through the pipeline; during the flow of the circulating medium in the heat exchanger 11, heat exchange will be completed between the circulating medium and the waste heat flowing in the heat exchanger 11. The circulating medium after heat exchange can be stored in the heat storage tank 31 or continue to circulate for heat exchange, thereby storing the thermal energy of the waste heat in the circulating medium.
[0044] Example 2: Reference Figure 3 and Figure 4 The difference between this embodiment and embodiment 1 is that the dust removal component 2 can effectively reduce the maintenance difficulty of the dust removal component 2, and at the same time effectively improve the dust removal effect of the dust removal component 2 on the dust in the waste heat.
[0045] The dust removal assembly 2 includes a housing 23, a filter screen 22, a support structure 24, a drive structure 25, and a dust collection pipe 27. The housing 23 allows the cyclone separator 21 to discharge filtered hot material and serves as the mounting carrier for other structures. The filter screen 22 further purifies the waste heat by filtering and intercepting small particulate dust particles. The support structure 24 supports and tightens the filter screen 22, ensuring it maintains a high filtration efficiency for small particulate dust. The drive structure 25 ensures the stability of the filter screen 22's filtration of small particulate dust. The dust collection pipe 27 guides the small particulate dust filtered and intercepted by the filter screen 22 into the ash hopper 211 of the cyclone separator 21 for collection, facilitating subsequent unified processing by personnel.
[0046] Reference Figure 4 and Figure 5 The housing 23 is fixedly installed on the top of the cyclone separator 21, and its interior has a ventilation space 231 for waste heat to pass through and a clearance space 232 for the installation of the support mesh structure 24.
[0047] Reference Figure 5 and Figure 6 The ventilation space 231 is cylindrical in shape. It extends through the shell 23 along the axis parallel to the cyclone separator 21 to form an opening, and its axis coincides with the axis of the cyclone separator 21, so that the opening of the cyclone separator 21 for discharging heated material can communicate with the outside.
[0048] The clearance space 232 has an overall shape close to a disc shape. Its radial dimension is larger than that of the ventilation space 231 and it is located on one side of the ventilation space 231 in the radial direction. Its axis is parallel to the axis of the ventilation space 231. In this embodiment, the clearance space 232 is preferably located on the side of the ventilation space 231 away from the inlet of the cyclone separator 21.
[0049] Reference Figure 5 and Figure 7 The support structure 24 includes a rotating ring 241, a frame 242, a rotating column 243, multiple elastic plates 244, and elastic elements 245.
[0050] The rotating ring 241 has an overall ring structure. It is rotatably connected to the shell 23 and distributed on the edge of the radial direction of the clearance space 232. Its rotation axis coincides with its own axis and the axis of the clearance space 232.
[0051] The frame 242 is fixedly installed on the rotating ring 241 and located in the inner space of the rotating ring 241, and the frame 242 has a hollowed-out area for waste heat to pass through.
[0052] The rotating column 243 supports a cylindrical structure, which is rotatably mounted on the frame 242 and located inside the rotating ring 241. Its rotation axis coincides with its own axis and the axis of the rotating ring 241. In this embodiment, it is preferable that the axis of the rotating ring 241 is located on one side of the radial direction of the ventilation space 231, and it is preferable that the rotating column 243 is located in the clearance space 232 near the ventilation space 231.
[0053] The elastic sheet 244 is generally rectangular in shape and is installed between the rotating column 243 and the rotating ring 241 with its width direction parallel to the axis of the rotating column 243. Its two ends along its length are fixedly connected to the outer side of the rotating column 243 and the inner side of the rotating ring 241, respectively. The elastic sheet 244 is elastic, exhibiting a tendency to stretch and deform along its length and to recover its original shape, as well as a tendency to bend and deform along its thickness and to recover its original shape. In this embodiment, since the elastic sheet 244 is a common prior art, it will not be described in detail here.
[0054] Multiple elastic sheets 244 are arranged in a circular array on the inner side of the rotating ring 241 with the axis of the rotating ring 241 as the axis, so that adjacent elastic sheets 244 form a space for the filter screen 22 to be installed in the space between the rotating ring 241 and the rotating column 243.
[0055] The filter screen 22 has a circular sheet structure, consisting of multiple filter sheets 221 of the same size, which are respectively installed in multiple spaces formed by multiple elastic sheets 244. At this time, the two ends of the filter sheet 221 along its length are fixedly connected to the inner side of the rotating ring 241 and the outer side of the rotating column 243, respectively, and both sides are fixedly connected to adjacent elastic sheets 244. In this embodiment, preferably, the cross-sectional area of the filter sheets 221 is larger than the cross-sectional area of the ventilation space 231, and the filter sheets 221 can completely cover the cross-section of the ventilation space 231 along its axial direction as the rotating ring 241 rotates towards the ventilation space 231.
[0056] The elastic element 245 is installed at the rotatable connection position between the rotating column 243 and the frame 242. Its two ends are fixedly connected to the rotating column 243 and the frame 242 respectively, and it has the tendency to drive the rotating column 243 to rotate relative to the frame 242 in one direction to its limit position and maintain it there. In this embodiment, the elastic element 245 is preferably a torsion spring; since torsion springs are common prior art, they will not be described in detail here, and only its installation position is shown in the accompanying drawings, with its structure omitted.
[0057] After the rotating column 243 rotates relative to the frame 242 under the action of the elastic element 245, multiple elastic sheets 244 will be in a state of being stretched and bent along their own length direction. At this time, the filter screen 221 between adjacent elastic sheets 244 will be in a taut state, which can effectively filter and intercept small particulate dust in waste heat.
[0058] Reference Figure 5 and Figure 8 The drive structure 25 is mounted on the housing 23 and located above the filter screen 22, and includes a rotating wheel 251, a moving part 252 and a ball bearing 253.
[0059] The rotating wheel 251 has a circular plate-like structure. It is rotatably mounted on the housing 23 and is located in the ventilation space 231. Its rotation axis coincides with its own axis and the axis of the ventilation space 231. In this embodiment, the rotating wheel 251 preferably has multiple hollowed-out areas to allow waste heat to pass through the rotating wheel 251 when it flows along the ventilation space 231.
[0060] The bottom edge of the rotating wheel 251 has toothed ring structures distributed along its own circumference, and the top edge of the rotating ring 241 also has toothed ring structures along its own circumference, with the toothed ring structures of the rotating wheel 251 meshing with each other. At this time, the rotation of the rotating wheel 251 relative to the housing 23 can drive the rotating ring 241 to rotate relative to the housing 23.
[0061] The movable component 252 is generally a cylindrical rod-shaped structure, which is installed in the ventilation space 231 and passes through and engages with the rotating wheel 251 along the axial direction of the ventilation space 231, with its axis coinciding with the axis of the rotating wheel 251. In this embodiment, preferably, the top of the movable component 252 extends outward along the axial direction with a rod-shaped structure with a square cross-section. The housing 23 has a structure in the ventilation space 231 for the rod-shaped structure to pass through and engage, which has a hollowed-out area for waste heat to pass through, and restricts the movable component 252 from rotating relative to the housing 23 about its own axis.
[0062] The ball bearing 253 has a spherical structure and is rolled on one side of the movable part 252 in the radial direction. Part of it is located inside the movable part 252 and part of it is exposed on the outside of the movable part 252.
[0063] The movable component 252 is movable relative to the housing 23 along its own axis. Its inner side has a helical groove 2511 adapted to the ball bearing 253, and the axis of the helical trajectory of the helical groove 2511 coincides with the axis of the rotating wheel 251. When the movable component 252 passes through the rotating wheel 251, the portion of the ball bearing 253 protruding from the movable component 252 will be located in the helical groove 2511. During the movement of the movable component 252 relative to the housing 23, the ball bearing 253 remains located in the helical groove 2511, and the rod-like structure of the movable component 252 will maintain its engagement with the frame structure 242 of the housing 23.
[0064] The movable component 252 is restricted in its movement relative to the housing 23. When the movable component 252 moves downward to its limit position, the ball bearing 253 is located at the bottom of the spiral groove 2511, and the bottom of the movable component 252 is in contact with the portion of the filter screen 221 located in the ventilation space 231, with the portion of the filter screen 221 in the ventilation space 231 perpendicular to the axis of the ventilation space 231. In this embodiment, it is preferable that the movable component 252 remains in the state of moving downward to its limit position under its own weight alone.
[0065] Reference Figure 5 and Figure 6 When the movable part 252 is in the downward movement to the limit position, if the part of the filter screen 221 located in the ventilation space 231 is blocked to a certain extent due to the filtration and interception of small dust particles, the force exerted on the part of the filter screen 221 located in the ventilation space 231 during the process of the exhaust gas entering the ventilation space 231 from the inside of the cyclone separator 21 will drive the filter screen 221 to bulge upward and deform, thereby driving the movable part 252 to move upward relative to the housing 23 by a certain distance; during the process of the movable part 252 moving from bottom to top, the rotating wheel 251 will be driven to rotate relative to the housing 23 through the ball bearing 253.
[0066] Furthermore, preferably, the rotating wheel 251 drives the rotating ring 241 to rotate in one direction. During the process of the rotating wheel 251 driving the rotating ring 241 to rotate, the direction of rotation of the rotating ring 241 relative to the housing 23 is opposite to the direction of rotation of the rotating column 243 driven by the elastic element 245. Moreover, the moving element 252 can only drive the rotating ring 241 to rotate relative to the housing 23 through the rotating wheel 251 during its upward movement. In this embodiment, the toothed ring structure between the rotating wheel 251 and the rotating ring 241 is preferably a ratchet structure to achieve the effect of the rotating wheel 251 driving the rotating ring 241 to rotate in one direction. Since the ratchet structure is a common prior art, it will not be described in detail here, and it is only briefly shown in the accompanying drawings.
[0067] At this time, as the movable part 252 moves upward with the upward deformation of the filter screen 221, it can drive the rotating wheel 251 to rotate, thereby driving the rotating ring 241 to rotate, causing the part of the filter screen 221 located in the ventilation space 231 to change, so that the part of the filter screen 221 located in the ventilation space 231 can continue to have a further purification effect on waste heat; after the part of the filter screen 221 located in the ventilation space 231 restores its purification effect, the movable part 252 will move downward under its own gravity and drive the rotating wheel 251 to rotate relative to the housing 23, and during this process, the relative position of the rotating ring 241 relative to the housing 23 is fixed.
[0068] Reference Figure 6 and Figure 7Furthermore, during the process of the filter screen 221 returning to a state perpendicular to the axis of the ventilation space 231 after its upward convex deformation, the upward convex deformation of the filter screen 221 drives the rotating column 243 to rotate against the force of the elastic element 245, reducing the degree of stretching and bending deformation of the multiple elastic pieces 244, thus making the filter screen 221 relatively relaxed. Then, when the filter screen 221 returns to a state perpendicular to the axis of the ventilation space 231, the rotating column 243 will rotate to its limit position under the force of the elastic element 245 and maintain it, and the degree of stretching and bending deformation of the multiple elastic pieces 244 will be restored, and the filter screen 221 will return to tension. This process helps small dust particles that have formed blockages on the filter screen 221 to leave the filter screen 221, thereby achieving a certain degree of unclogging effect.
[0069] Reference Figure 3 and Figure 4 The dust collection pipe 27 is installed on one side of the cyclone separator 21 in the radial direction, with its two ends fixedly connected to the housing 23 and the ash hopper 211, respectively, and its two ends communicating with the bottom of the clearance space 232 and the internal space of the ash hopper 211, respectively. In this embodiment, the dust collection pipe 27 is preferably located on the side of the cyclone separator 21 away from its own inlet.
[0070] Furthermore, the top of the dust collection pipe 27 is preferably flared upwards, and the opening at the top of the dust collection pipe 27 is preferably the same as the bottom cross section of the clearance space 232.
[0071] At this time, the small dust particles on the filter screen 221 can fall off under their own gravity after leaving the filter screen 221. The small dust particles on the part of the filter screen 221 located in the ventilation space 231 can re-enter the interior of the cyclone separator 21. The small dust particles on the filter screen 22 located above the dust collection pipe 27 can enter the ash hopper 211 through the dust collection pipe 27, thereby achieving a clearing effect on the filter screen 22 as a whole.
[0072] Reference Figure 5 and Figure 9 Inside the housing 23, a dust-removing plate 26 is also fixedly installed. This plate is elastic and has a certain elastic deformation capability. It is located in the clearance space 232 near the ventilation space 231, above the filter screen 22, with its bottom contacting and abutting against the upper surface of the filter screen 22. In this embodiment, preferably, the dust-removing plate 26 forms a certain sealing effect between the clearance space 232 and the ventilation space 231; and preferably, after the filter screen 221 is installed between adjacent elastic plates 244, the upper surface of the filter screen 221 is flush with the upper surface of the elastic plate 244.
[0073] Reference Figure 6 and Figure 10At this time, when the part of the filter screen 221 located in the ventilation space 231 bulges upward and deforms, and the rotating ring 241 rotates relative to the housing 23, the dust removal plate 26 can apply a downward force to the part of the filter screen 221 that bulges upward, thereby further helping the small dust particles that have formed blockages on the filter screen 221 to leave the filter screen 221, and further achieving the effect of clearing blockages.
[0074] Reference Figure 5 and Figure 6 Furthermore, in order to reduce the damage to the filter screen 221 caused by direct contact between the movable part 252 and the filter screen 221 located in the ventilation space 231, and at the same time to reduce the probability of the dust removal plate 26 deforming during the process of clearing blockage of the filter screen 221 and affecting its sealing effect, it is preferable that a filter screen 4 is also fixedly installed at the bottom of the movable part 252.
[0075] The filter 4 has a circular sheet structure, and its axial direction coincides with the axial direction of the movable part 252. Its radial dimension is equal to the radial dimension of the ventilation space 231. The movable part 252 contacts and abuts against the filter screen 221 through the filter 4. Multiple filter holes are evenly distributed on the filter 4, and the dust removal effect of the filter 4 is higher than that of the filter screen 22.
[0076] Reference Figure 9 and Figure 10 The filter 4 has a magnetic edge, the dust removal plate 26 has a magnetic layer inside, and there is a magnetic attraction between the filter 4 and the dust removal plate 26. In this embodiment, it is preferable that the position of the filter 4 adjacent to the dust removal plate 26 is magnetic.
[0077] When the movable part 252 moves downward to its limit position, the filter sheet 4 and the dust removal plate 26 can maintain contact and resist each other under the action of magnetic attraction. At this time, the dust removal plate 26 can play a certain sealing effect between the clearance space 232 and the ventilation space 231. At this time, the filter screen 221 is blocked by the force of waste heat, which can overcome the magnetic attraction between the filter sheet 4 and the dust removal part, causing the part of the filter screen 221 in the ventilation space 231 to bulge upward and deform. When the movable part 252 moves from top to bottom to its limit position, if the dust removal plate 26 is deformed excessively during the previous cleaning process and cannot recover on its own, the magnetic attraction between the filter plate 4 and the dust removal plate 26 can help the dust removal plate 26 recover from deformation.
[0078] The implementation principle of a heat recovery energy-saving treatment device according to an embodiment of this application is as follows: When the portion of the filter screen 221 located in the ventilation space 231 becomes clogged due to filtering and intercepting small dust particles in the waste heat, the waste heat flowing from the inside of the cyclone separator 21 into the ventilation space 231 will exert a force on the portion of the filter screen 221 located in the ventilation space 231, causing it to bulge upwards and deform, thereby causing the movable part 252 to move upwards relative to the housing 23. During this process, the rotating wheel 251 will drive the rotating ring 241 to rotate, thereby changing the position of the filter screen 221 in the ventilation space 231, so that the unblocked filter screen 221 can continue to further purify the waste heat. At the same time, during this process, the filter screen 221 will go from a taut state to a slack state and then be taut again, which helps the small dust particles filtered and intercepted by the filter screen 221 to fall off. In addition, the dust removal plate 26 can also apply a downward force to the filter screen 221 during the rotation of the rotating ring 241, causing the small dust particles that have formed blockages on the filter screen 221 to fall off, thus achieving the effect of clearing blockages. Furthermore, some of the small dust particles that fall can be collected in the dust hopper 211 through the dust collection pipe 27, which makes it easier for staff to uniformly process the dust removed by the dust removal component 2 and effectively reduce the maintenance difficulty of the dust removal component 2.
[0079] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A heat recovery energy saving treatment device, characterized by, The heat exchange assembly (1), the dust removal assembly (2) and the heat energy storage assembly (3) are included. The heat exchange assembly (1) includes a heat exchanger (11) and a flow guide cover (12); the flow guide cover (12) is arranged at one end of the heat exchanger (11) and is used for guiding cold materials into the heat exchanger (11) and reducing the impact force of the cold materials on the heat exchanger (11); The dust removal assembly (2) includes a cyclone separator (21) and a filter screen (22); the cyclone separator (21) is arranged vertically, the inlet of the cyclone separator (21) is used for feeding hot materials, and the outlet of the cyclone separator (21) is connected with the heat exchanger (11) and communicates with the heat exchanger (11); the filter screen (22) is arranged between the cyclone separator (21) and the heat exchanger (11), and the dust removal effect of the filter screen (22) is higher than that of the cyclone separator (21); The heat energy storage assembly (3) includes a heat storage tank (31) and a circulating pump (32); a pipeline is connected between the heat storage tank (31) and the heat exchanger (11), and the space in the heat storage tank (31) communicates with the outlet through which the cold materials leave the heat exchanger (11) through the pipeline; the circulating pump (32) is arranged on the heat storage tank (31) and is used for driving the cold materials to flow between the inside of the heat storage tank (31) and the inside of the heat exchanger (11).
2. The heat-recovery energy-saving treatment device according to claim 1, characterized in that, The dust removal assembly (2) includes a shell (23), a supporting screen structure (24) and a driving structure (25); The shell (23) is arranged between the cyclone separator (21) and the heat exchanger (11), the inside of the shell (23) has a ventilation space (231) and a space (232) for accommodating the filter screen (22), the two ends of the ventilation space (231) respectively communicate with the outlet of the cyclone separator (21) and the inlet of the heat exchanger (11) for hot materials, and the space (232) for accommodating the filter screen (22) is located on one side of the ventilation space (231) and communicates with the ventilation space (231); The supporting screen structure (24) is arranged in the space (232) for accommodating the filter screen (22) and includes a rotating ring (241); the rotating ring (241) is rotationally connected with the shell (23), the rotating axis of the rotating ring (241) coincides with the axis of the rotating ring (241) and is parallel to the axis of the cyclone separator (21); the filter screen (22) is arranged in the inside space of the rotating ring (241), and the filter screen (22) keeps separating the ventilation space (231) in the process of rotation of the rotating ring (241); The driving structure (25) is arranged on the shell (23) and located above the filter screen (22) and includes a rotating wheel (251); the rotating wheel (251) is rotationally connected with the shell (23), the rotating axis of the rotating wheel (251) coincides with the axis of the rotating wheel (251) and is parallel to the rotating axis of the rotating ring (241); the rotating wheel (251) is located above the rotating ring (241) and has a gear ring structure distributed along the circumferential track of the rotating wheel (251) at the bottom of the rotating wheel (251); the top of the rotating ring (241) also has a gear ring structure distributed along the circumferential track of the rotating ring (241), and the gear ring structure of the rotating wheel (251) is in engagement with the gear ring structure of the rotating ring (241).
3. The heat-recovery energy-saving treatment device according to claim 2, characterized in that, The driving structure (25) further comprises a movable piece (252) and a ball (253); The movable piece (252) is vertically arranged with the rotating wheel (251) and is located in the ventilation space (231) and has its bottom in contact with the filter screen (22); the ball (253) is arranged on the movable piece (252) and is partially located on one side of the movable piece (252) in the radial direction; The inner side of the rotating wheel (251) is provided with a spiral groove (2511) matched with the ball (253), and the axis of the spiral track of the spiral groove (2511) coincides with the axis of the rotating wheel (251); When the filter screen (22) is blocked, the force of the heated material drives the movable piece (252) to move upwards, and the ball (253) drives the rotating wheel (251) to rotate during the upward movement of the movable piece (252), thereby driving the rotating ring (241) to rotate.
4. The heat-recovery energy-saving treatment device according to claim 3, wherein The driving structure (25) further comprises a filter sheet (4) with higher dust removal effect than the filter screen (22); the filter sheet (4) is arranged at the bottom of the movable piece (252), and the filter sheet (4) is matched with the ventilation space (231).
5. The heat-recovery energy-saving treatment device according to claim 4, wherein The dust removal assembly (2) further comprises an elastic dust removing sheet (26); the dust removing sheet (26) is fixedly connected with the shell (23) and is distributed near the ventilation space (231) in the accommodation space (232), and the dust removing sheet (26) is located above the filter screen (22) and is in contact with the filter screen (22).
6. The heat-recovery energy-saving treatment device according to claim 5, wherein The edge portion of the filter sheet (4) has magnetism, the inside of the dust removing sheet (26) has a magnetic layer, and the filter sheet (4) and the dust removing sheet (26) are magnetically attracted to each other; The rotating wheel (251) drives the rotating ring (241) to rotate in one direction, so that the movable piece (252) drives the rotating wheel (251) to rotate relative to the shell (23) during the upward movement of the movable piece (252); when the movable piece (252) moves downward to the limit position and the filter sheet (4) is in contact with the filter screen (22), the filter sheet (4) is in contact with the dust removing sheet (26) to drive the dust removing sheet (26) to keep in contact with the filter screen (22).
7. The heat-recovery energy-saving treatment device according to claim 2, wherein The net supporting structure (24) further comprises a rotating column (243), a plurality of elastic sheets (244) and an elastic piece (245). The rotating column (243) is rotatably installed in the shell (23) and located in the space (232), and the axis of the rotating column (243) coincides with the axis of the rotating ring (241); the elastic sheet (244) is elastic, and its two ends are connected with the rotating column (243) and the rotating ring (241) respectively, and a plurality of elastic sheets (244) are distributed in a circumferential array on the inner side of the rotating ring (241) with the axis of the rotating ring (241) as the axis; the filter screen (22) is divided into multiple parts, and each part of the filter screen (22) fills the space formed between adjacent elastic sheets (244). The two ends of the elastic member (245) are connected with the rotating column (243) and the shell (23) respectively, and the elastic member (245) has a tendency to drive the rotating column (243) to rotate relative to the rotating ring (241) to stretch and bend the elastic sheet (244) and tighten the filter screen (22).
8. The heat-recovering energy-saving treatment apparatus according to claim 7, wherein The supporting net structure (24) further comprises a frame body (242); the frame body (242) is fixedly connected with the rotating ring (241), and the rotating column (243) is rotatably connected with the frame body (242).
9. The heat-recovery energy-saving treatment device according to claim 2, characterized by The dust removal assembly (2) further comprises a dust collecting pipe (27). The dust collecting pipe (27) is arranged on one side in the radial direction of the cyclone separator (21), and its two ends are connected with the shell (23) and the dust hopper (211) at the bottom of the cyclone separator (21) respectively, and the two ends of the dust collecting pipe (27) are communicated with the bottom of the space (232) away from the air passage space (231) and the internal space of the dust hopper (211) respectively.
10. The heat-recovering energy-saving treatment apparatus according to claim 9, wherein The top of the dust collecting pipe (27) is flared upward, and the opening of the top of the dust collecting pipe (27) is matched with the bottom of the space (232).