CN117781613A - Waste heat recovery and recycling drying system - Google Patents
Waste heat recovery and recycling drying system Download PDFInfo
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- CN117781613A CN117781613A CN202410207910.0A CN202410207910A CN117781613A CN 117781613 A CN117781613 A CN 117781613A CN 202410207910 A CN202410207910 A CN 202410207910A CN 117781613 A CN117781613 A CN 117781613A
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- 238000001035 drying Methods 0.000 title claims abstract description 66
- 239000002918 waste heat Substances 0.000 title claims abstract description 49
- 238000004064 recycling Methods 0.000 title claims abstract description 12
- 238000011084 recovery Methods 0.000 title claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 78
- 238000010438 heat treatment Methods 0.000 claims abstract description 24
- 238000010981 drying operation Methods 0.000 claims abstract description 7
- 238000004140 cleaning Methods 0.000 claims description 98
- 230000007246 mechanism Effects 0.000 claims description 23
- 238000007790 scraping Methods 0.000 claims description 19
- 239000000428 dust Substances 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 18
- 239000007789 gas Substances 0.000 abstract description 11
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 239000003570 air Substances 0.000 description 106
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 8
- 239000002689 soil Substances 0.000 description 8
- 239000003673 groundwater Substances 0.000 description 4
- 238000007493 shaping process Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000012080 ambient air Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000002285 radioactive effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000010405 clearance mechanism Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a waste heat recycling and drying system, which relates to the technical field of drying equipment and comprises a drying chamber, wherein one end of the drying chamber is connected with the rear end of an air inlet pipe, and the other end of the drying chamber is connected with the front end of an air outlet pipe; the front end of the air inlet pipe is communicated with an external air source through an air inlet pump, and a geothermal energy air heat exchanger, a waste heat exchanger and a heating device are sequentially connected in series from front to back on the air inlet pipe between the air inlet pump and the drying chamber; the newly-entered cold air in the air inlet pipe can exchange heat with the underground water in the heat exchange water pipe in the box body of the geothermal energy air heat exchanger to perform the first preheating operation; and the air after the first preheating operation enters the waste heat exchanger to exchange heat with the hot tail gas, so that the second preheating operation is realized. The twice preheating basically makes up the working difference in cold regions or climates, and can improve the heating efficiency of the drying gas and further improve the overall working efficiency of the drying operation on the premise of realizing small energy consumption.
Description
Technical Field
The invention relates to the technical field of drying equipment, in particular to a waste heat recycling and drying system.
Background
The drying system can utilize heat energy to evaporate moisture contained in the material, and is applied to the industrial field to achieve the purpose of drying the material. The drying operation itself needs to consume a large amount of heat energy to heat and dehumidify the drying gas, so that the drying gas can circularly flow to take away the moisture in the material. In cold climates, the ambient air is often below zero, and the use of direct heating of the ambient air to dry the air tends to consume more heat energy than in conventional climates. In the field of drying, technicians often utilize the air which is used by a previous round of drying materials and has waste heat to preheat the newly-entered external air so as to raise the basic temperature of the external air, and then perform conventional heating operation on the preheated air. However, the air used in the previous drying process is generally maintained at 50-60 ℃ so that the air is directly contacted with cold outside air, the heat exchange rate in unit time is constant, and the heating effect of the outside air is limited. Therefore, the applicant proposes a drying system for performing two-round preheating and temperature rising by using soil heat energy and drying waste heat, which can fully preheat the external air at a lower temperature, so that the temperature of the external air is raised as soon as possible under the condition of low energy consumption, and the drying efficiency is improved.
The soil heat energy mainly comes from solar radiation energy, heat released during decomposition of soil organic matters, heat released in the atmosphere, geothermal energy in the earth, radioactive energy of radioactive elements and the like, and has the characteristics of high stability and reliability, high space utilization rate, environmental protection and energy saving. In the existing soil heat utilization process, the underground surplus heat is generally conducted through an air heat exchanger. In a specific use process of the air heat exchanger, soil heat is drawn and conducted through groundwater (the temperature of the groundwater is within the range of 10-22 ℃ and has certain small change along with different seasons and regions, and the temperature of the groundwater which is far away from the ground surface is higher), and heat is transferred through a heat exchange water pipe, so that the operation of heat exchange of air passing through the heat exchanger is realized.
However, in the use process of the existing waste heat utilization heat exchanger, because heat exchange occurs when heat medium (namely air with waste heat used by the last round of drying materials) meets with air with relatively low temperature, water vapor in the hot air is condensed into water and is attached to the surfaces of the heat exchange tubes and the heat exchange plates, heat energy in the hot air is prevented from being absorbed by the heat exchange tubes and the heat exchange plates and transferred to low-temperature gas in the heat exchange tubes, preheating and heating efficiency is affected, and therefore the efficiency of drying materials is indirectly reduced.
Based on the above problems, in order to further improve the efficiency of drying materials, we propose a waste heat recovery and recycling drying system for this purpose.
Disclosure of Invention
The invention aims at: in order to further improve the efficiency of drying the materials, a waste heat recovery and recycling drying system is provided.
In order to achieve the above purpose, the present invention provides the following technical solutions: a waste heat recycling and drying system comprises a drying chamber, wherein one end of the drying chamber is connected with the rear end of an air inlet pipe, and the other end of the drying chamber is connected with the front end of an air outlet pipe; the front end of the air inlet pipe is communicated with an external air source through an air inlet pump, and a geothermal energy air heat exchanger, a waste heat exchanger and a heating device are sequentially connected in series from front to back on the air inlet pipe between the air inlet pump and the drying chamber; the geothermal energy air heat exchanger comprises a box body, wherein a heat exchange water pipe is arranged in the box body, the front end of the heat exchange water pipe is connected with one end of a water inlet pipe through a water pump, the other end of the water inlet pipe is inserted into a first geothermal water well, the rear end of the heat exchange pipe is connected with one end of a water outlet pipe, and the other end of the water outlet pipe is inserted into a second geothermal water well; the front end and the rear end of the box body are respectively provided with a through hole, the box body is connected into the air inlet pipe through the front through hole and the rear through hole, and cold air newly entering the air inlet pipe can exchange heat with underground water in the heat exchange water pipe in the box body of the geothermal energy air heat exchanger to perform primary preheating operation; the air after the first preheating operation enters the waste heat exchanger through the air inlet pipe to exchange heat with the air with waste heat used by the drying materials, so as to realize the second preheating operation; the air after the second preheating operation enters a heating device, is heated to the required drying temperature, enters a drying chamber to carry out flowing drying operation on materials, and enters an air outlet pipe to participate in the second preheating operation;
the waste heat exchanger comprises a shell, wherein heat exchange pipes are arranged in the shell, the outer walls of the heat exchange pipes are transversely and equidistantly fixedly connected with a plurality of heat exchange plates, the upper end of one end of the shell is fixedly connected with an input pipe, the lower end of one end of the shell is fixedly connected with an output pipe, and the waste heat exchanger is connected into an air inlet pipe in series through the input pipe and the output pipe; the shell is connected in series into the air outlet pipe through the air inlet and the air outlet, and dust screens are respectively arranged on the air inlet and the air outlet; the tail end of the air outlet pipe is inserted into the first geothermal well; the shell is provided with a cleaning mechanism which is used for improving the heating efficiency of the heat exchange tube and the heat exchange plate on the air; the cleaning mechanism comprises: a pushing assembly, a scraping assembly; the scraping component is arranged in the shell and positioned on the heat exchange tube and is used for removing dust and water drops on the dustproof net, the heat exchange tube and the outer wall of the heat exchange plate; the pushing component is arranged on the shell and used for driving the scraping component to move; the inside of shell is provided with drainage mechanism, drainage mechanism is used for discharging unnecessary drop of water.
As still further aspects of the invention: the pushing component comprises: install the motor on shell top, the output fixedly connected with of motor is located the inside eccentric disc of shell, the one end of eccentric disc bottom is rotated through the pivot and is connected with the rotation ejector pad, the top sliding connection of shell inner wall cup joints the removal roof at the rotation ejector pad outer wall, set up on the removal roof and supply to rotate the gliding spacing groove of pushing away of ejector pad, the top symmetry of removal roof is provided with two sets of balls, a set of the ball is provided with a plurality of, a plurality of the longitudinal equidistance rotation of ball is connected on the top of removal roof, and contacts with the top of shell inner wall.
As still further aspects of the invention: the scraping component comprises: the two fixing plates are symmetrically and fixedly connected to the upper end of the inner wall of the shell, the two fixing plates are respectively positioned at two sides of the movable top plate, the outer walls of the two fixing plates are respectively and slidably sleeved with the movable sleeve frame, one side of the movable top plate is symmetrically provided with two connecting pushing plates, the two connecting pushing plates penetrate through the outer side of the other side of the movable top plate and are fixedly connected with the movable sleeve frame on the outer walls of the two fixing plates, a plurality of second cleaning scraping plates are transversely and equidistantly formed at the bottom end of the movable sleeve frame, a plurality of cleaning brushes are vertically and equidistantly fixedly connected to the outer wall of one side of the second cleaning scraping plates, which is close to the dust screen, and the cleaning brushes are respectively contacted with the outer surfaces of the two dust screens, the bottom transverse equidistant shaping of removal roof has a plurality of first cleaning scraper blades of cup jointing on the heat exchange tube outer wall, and is a plurality of all vertical equidistance has seted up multiunit slip cover groove on the first cleaning scraper blade, a set of slip cover groove is provided with a plurality ofly, a plurality of slip cover groove transverse equidistant is seted up on first cleaning scraper blade, a plurality of the inner wall of slip cover groove has all slidingly cup jointed the connection lantern ring, the inner wall fixedly connected with of connection lantern ring cup joints the first cleaning sponge on the heat exchange tube outer wall, the equal vertical fixedly connected with of both ends outer wall of first cleaning scraper blade a plurality of second cleaning sponge, a plurality of second cleaning sponge and multiunit slip cover groove crisscross each other.
As still further aspects of the invention: the drainage mechanism comprises: the guide slide of sliding connection in shell inner wall bottom, the guide slide contacts with the bottom outer wall of a plurality of first cleaning scraper blades, one side integrated into one piece on guide slide top has the connecting block, the top integrated into one piece of connecting block has the guide bar, a plurality of wash ports have been seted up to the one end that the guide slide is close to the connecting block top horizontal equidistance, a plurality of the wash port runs through to the bottom outside of guide slide.
As still further aspects of the invention: the output pipe and the input pipe are respectively and fixedly connected with the end parts of the two ends of the heat exchange pipe and are communicated with the inner cavity of the heat exchange pipe, and one end of the input pipe far away from the shell is fixedly connected with the output end of the input pump.
As still further aspects of the invention: the limit pushing groove comprises: offer the first spout on removal roof top, the second spout that link up each other with first spout inner chamber has been seted up to one side that removes the roof and is located first spout, one side inner wall that the second spout was kept away from to first spout is circular-arc, one side inner wall that the second spout was kept away from to the second spout is the inclined plane form of mutual symmetry.
As still further aspects of the invention: the outer wall symmetry shaping of connecting the lantern ring has two spacing sliders, the upper and lower both sides of the inner wall in slip cap groove have been seted up respectively and have been supplied spacing slider gliding sharp spout.
As still further aspects of the invention: the upper surface of the flow guiding slide plate is in an inclined plane shape, and the outer wall of the bottom end of the first cleaning scraping plate is mutually attached to the outer surface of the upper surface of the flow guiding slide plate.
As still further aspects of the invention: the outer wall of the top end of the guide rod is cylindrical, and a plurality of limit sleeve grooves which are mutually matched with the connecting block and the outer wall of the guide rod are formed in the first cleaning scraping plates.
As still further aspects of the invention: the drainage chute is characterized in that a drain pipe is fixedly connected to one end of the shell, a drain chute which is communicated with the inner cavity of the drain pipe is arranged in the shell, and a water inlet which is communicated with the inner cavity of the drain hole is arranged at the top end of the drain chute.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, by aiming at external cold air, the soil heat energy and the drying tail gas waste heat are utilized to realize twice preheating operation, so that the energy consumption of drying operation in cold areas or cold climates is less, even if the outdoor temperature is below zero, the temperature can be raised to the room temperature level through twice preheating, and the operation time and the energy consumption of the heating device are reduced. When the first round of preheating is carried out, the used soil heat energy has the advantages of strong energy stability and small occupied area of the heat exchange device, the overground and underground space can be fully utilized, and the soil heat energy is extracted by utilizing the groundwater with relatively constant temperature to carry out heat exchange operation with cold air; after the first round of preheating, the temperature of the cold air can be raised by 5-10 ℃; the secondary preheating heat exchange is carried out on the tail gas left in the previous round of drying, and the temperature of the air used for the previous round of drying materials is generally maintained at about 50-60 ℃, so that the air after the secondary preheating can basically reach the room temperature. The twice preheating basically makes up the working difference in cold regions or climates, and can improve the heating efficiency of the drying gas and further improve the overall working efficiency of the drying operation on the premise of realizing small energy consumption.
2. The temperature of air in the air outlet pipe after the second preheating operation is still 25-30 ℃, the tail end of the air outlet pipe is inserted into the first geothermal well, and the residual temperature of tail gas after the second preheating operation can be led into the first geothermal well, so that the water temperature in the first geothermal well is further compensated, and the mechanism is more stable and efficient to operate.
3. According to the waste heat exchanger disclosed by the invention, cold air in the air inlet pipe is conveyed into the heat exchange pipe after the first round of preheating is finished, exchanges heat with hot air passing through the shell, further increases the temperature of air in the heat exchange pipe, then finishes the second round of waste heat operation, and then enters the heating device to perform final heating operation. During this period, because waste heat exchanger is provided with clearance mechanism, the starter motor drives the eccentric disc and rotates, this moment through removing the roof, spacing groove, the ball, rotate the ejector pad, remove the cover frame, the fixed plate, connect the push pedal, first cleaning scraper blade, the second cleaning scraper blade, sliding sleeve groove, straight line spout, connect the lantern ring, first cleaning sponge, the second cleaning sponge, cleaning brush, mutually support of parts such as spacing slider, can realize repeatedly cleaning dust screen, the heat exchange tube, the outer wall of heat exchange plate, at the in-process of cleaning heat exchange tube, the heat exchange plate, the drop of water and dust etc. on the heat exchange tube, the heat exchange plate outer wall can discharge along with the rivers through drainage mechanism, thereby promote the heat exchange efficiency of secondary preheating, thereby further improve the efficiency to the material stoving.
Drawings
FIG. 1 is a schematic view of a device connection structure of the present invention;
FIG. 2 is a schematic diagram of a waste heat exchanger according to the present invention;
FIG. 3 is a schematic cross-sectional view of the housing of the present invention;
FIG. 4 is a schematic view of the connection structure of the water discharge chute and the water inlet;
FIG. 5 is a schematic cross-sectional view of a cleaning mechanism according to the present invention;
FIG. 6 is a schematic view of the connection collar and first cleaning sponge connection structure of the present invention;
FIG. 7 is a schematic diagram of a limiting push slot structure according to the present invention;
fig. 8 is a schematic view of a partial enlarged structure at a in fig. 5 according to the present invention.
In the figure: 1. a housing; 2. a cleaning mechanism; 201. a motor; 202. moving the top plate; 203. limiting pushing grooves; 2031. a first chute; 2032. a second chute; 204. a ball; 205. an eccentric disc; 206. rotating the pushing block; 207. moving the sleeve frame; 208. a fixing plate; 209. the connecting push plate; 2010. a first cleaning blade; 2011. a second cleaning blade; 2012. a sliding sleeve groove; 2013. a straight line chute; 2014. a connecting collar; 2015. a first cleaning sponge; 2016. a second cleaning sponge; 2017. cleaning a brush; 2018. a limit sliding block; 3. a drainage mechanism; 301. a drain pipe; 302. a drainage chute; 303. a diversion slide plate; 304. a drain hole; 305. a connecting block; 306. a water inlet; 307. a guide rod; 308. a limit sleeve groove; 4. an output pipe; 5. an input tube; 6. a dust screen; 7. a heat exchange tube; 8. a heat exchange plate; 9. an air outlet pipe; 10. an air inlet pipe; 11. a geothermal energy air heat exchanger; 12. a drying chamber; 13. a heating device; 14. a waste heat exchanger; 15. a water outlet pipe; 16. a first geothermal well; 17. a water inlet pipe; 18. a water pump; 19. a second geothermal well; 20. and an air inlet pump.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "configured" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art. Hereinafter, an embodiment of the present invention will be described in accordance with its entire structure.
Referring to fig. 1 to 8, in an embodiment of the present invention, a waste heat recycling and drying system includes a drying chamber 12, one end of the drying chamber 12 is connected to a rear end of an air inlet pipe 10, and the other end of the drying chamber 12 is connected to a front end of an air outlet pipe 9 (in fig. 1, a thick dash-dot line is identified as an air inlet pipe 10, and a thin two-dot dash line is identified as an air outlet pipe 9); the front end of the air inlet pipe 10 is communicated with an external air source through an air inlet pump 20, and a geothermal energy air heat exchanger 11, a waste heat exchanger 14 and a heating device 13 are sequentially connected in series from front to back on the air inlet pipe 10 between the air inlet pump 20 and the drying chamber 12.
The geothermal energy air heat exchanger 11 comprises a box body, wherein a heat exchange water pipe is arranged in the box body, the front end of the heat exchange water pipe is connected with one end of a water inlet pipe 17 through a water pump 18, the other end of the water inlet pipe 17 is inserted into a first geothermal well 16, the rear end of the heat exchange pipe is connected with one end of a water outlet pipe 15, and the other end of the water outlet pipe 15 is inserted into a second geothermal well 19; through holes are respectively formed in the front end and the rear end of the box body, the box body is connected into the air inlet pipe 10 through the front through holes and the rear through holes, and cold air newly entering the air inlet pipe 10 can exchange heat with underground water in a heat exchange water pipe in the box body of the geothermal energy air heat exchanger 11 to perform primary preheating operation. In order to avoid the interaction between the first geothermal well 16 and the second geothermal well 19, the two wells should be spaced as far apart as possible during the site selection.
The air after the first preheating operation enters the waste heat exchanger 14 through the air inlet pipe 10 to exchange heat with the air with waste heat used by the last round of drying materials, so as to realize the second preheating operation; the air after the second preheating operation enters the heating device 13, is heated to the required drying temperature, enters the drying chamber 12 to carry out flowing drying operation on the materials, and enters the air outlet pipe 9 and participates in the second preheating operation.
The waste heat exchanger 14 comprises a shell 1, heat exchange tubes 7 are arranged in the shell 1, a plurality of heat exchange plates 8 are transversely and equidistantly fixedly connected to the outer walls of the heat exchange tubes 7, an input tube 5 is fixedly connected to the upper end of one end of the shell 1, an output tube 4 is fixedly connected to the lower end of one end of the shell 1, and the waste heat exchanger 14 is connected into an air inlet tube 10 in series through the input tube 5 and the output tube 4; the two ends of the shell 1 are respectively provided with an air inlet and an air outlet, the shell is connected in series into an air outlet pipe 9 through the air inlet and the air outlet, and dust screens 6 are respectively arranged on the air inlet and the air outlet; the tail end of the air outlet pipe 9 is inserted into the first geothermal well 16; the shell 1 is provided with a cleaning mechanism 2, and the cleaning mechanism 2 is used for improving the heating efficiency of the heat exchange tubes 7 and the heat exchange plates 8 on air; the cleaning mechanism 2 comprises: a pushing assembly, a scraping assembly; the scraping component is arranged in the shell 1 and positioned on the heat exchange tube 7 and is used for removing dust and water drops on the dustproof net 6, the heat exchange tube 7 and the outer walls of the heat exchange plates 8; the pushing component is arranged on the shell 1 and used for driving the scraping component to move; a drainage mechanism 3 is arranged in the shell 1, and the drainage mechanism 3 is used for draining redundant water drops.
The pushing component comprises: the motor 201 is arranged at the top end of the shell 1, the output end of the motor 201 is fixedly connected with an eccentric disc 205 positioned in the shell 1, one end of the bottom end of the eccentric disc 205 is rotationally connected with a rotary push block 206 through a rotating shaft, the top end of the inner wall of the shell 1 is slidingly connected with a movable top plate 202 sleeved on the outer wall of the rotary push block 206, a limiting push groove 203 for the rotary push block 206 to slide is formed in the movable top plate 202, two groups of balls 204 are symmetrically arranged at the top end of the movable top plate 202, a plurality of balls 204 are arranged, and the balls 204 are longitudinally and equidistantly rotationally connected to the top end of the movable top plate 202 and are in contact with the top end of the inner wall of the shell 1.
The limit pushing groove 203 comprises: a first chute 2031 is formed at the top end of the movable top plate 202, a second chute 2032 which is communicated with the inner cavity of the first chute 2031 is formed on one side of the movable top plate 202, the inner wall of one side of the first chute 2031, which is far away from the second chute 2032, is arc-shaped, and the inner wall of one side of the second chute 2032, which is far away from the first chute 2031, is in a mutually symmetrical inclined plane shape.
The scraping component comprises: the two fixed plates 208 of symmetry fixed connection in shell 1 inner wall upper end, two fixed plates 208 are located the both sides of removing roof 202 respectively, the outer wall of two fixed plates 208 has all been sliding sleeve and has been put in frame 207, one side symmetry of removing roof 202 is provided with two connection push pedal 209, two connection push pedal 209 all run through to the opposite side outside of removing roof 202, and with the removal cover frame 207 fixed connection on two fixed plate 208 outer walls, the bottom horizontal equidistance shaping of removal cover frame 207 has a plurality of second cleaning scraper 2011, a plurality of second cleaning scraper 2011 is close to the vertical equidistance fixedly connected with a plurality of cleaning brush 2017 of one side outer wall of dust screen 6, a plurality of cleaning brush 2017 contact with the exometer of two dust screen 6 respectively, a plurality of first cleaning scraper 2010 of cup joints on the heat transfer pipe 7 outer wall of bottom horizontal equidistance shaping of roof 202, a plurality of first cleaning scraper 2010 have all vertically equidistance set up multiunit sliding sleeve groove 2012, a set of sliding sleeve 2012 is provided with a plurality, a plurality of sliding sleeve grooves 2012 transversely set up on first cleaning scraper 2010, a plurality of second cleaning sponge 2012 have all been set up on the inner wall of first cleaning sponge 2012, a plurality of inner wall connection of second cleaning sponge 2014 have a plurality of groups of inner wall connection rings 2015 fixedly connected with the inner wall 2015, a plurality of cleaning sponge 2014 are all connected with the second cleaning sponge 2015.
In this embodiment: when the device is used, cold air in the air inlet pipe 10 is pumped by the air inlet pump 20, the cold air is conveyed into the heat exchange pipe 7 after the first round of preheating is finished in the geothermal energy air heat exchanger 11, the heat exchange is carried out between the heat exchange pipe 7 and tail gas with waste heat conveyed by the air outlet pipe 9 in the shell 1, the second round of waste heat operation is finished after the temperature of the air in the heat exchange pipe 7 is further improved, and the air enters the heating device 13 for final heating operation.
In this process, the motor 201 is started to drive the eccentric disc 205 to rotate, at this time, the rotating push block 206 is driven by the eccentric disc 205 to slide along the inner wall of the first chute 2031, when the rotating push block 206 contacts with the inner wall of one side of the second chute 2032, the moving top plate 202 slides along the outer wall of the connecting push plate 209 under the pushing of the rotating push block 206, and meanwhile, the moving top plate 202 slides along the inner wall of the housing 1 through the balls 204, at this time, the plurality of first cleaning scrapers 2010 are driven by the moving top plate 202 to drive the second cleaning sponge 2016 to slide along the outer wall of the heat exchange plate 8, so that one end outer walls of the plurality of heat exchange plates 8 can be scraped and cleaned, and meanwhile, the connecting collar 2014 slides along the inner wall of the sliding sleeve groove 2012 and the linear chute 2013 through the limiting slide 2018 under the blocking of the heat exchange tube 7.
When the rotating push block 206 contacts with the inner wall of one end of the second sliding groove 2032, the moving top plate 202 drives the moving sleeve frame 207 to slide along the outer wall of the fixed plate 208 through the connecting push plate 209 under the pushing of the rotating push block 206, and meanwhile, the plurality of second cleaning scrapers 2011 can scrape and clean the outer wall of the dust screen 6 through the cleaning brushes 2017 under the driving of the moving sleeve frame 207.
Meanwhile, the plurality of first cleaning scrapers 2010 are driven by the moving top plate 202 and drive the limit sliding blocks 2018 to move through the linear sliding grooves 2013, at the moment, the connecting lantern rings 2014 are driven by the limit sliding blocks 2018, the outer walls of the heat exchange tubes 7 can be scraped and cleaned through the first cleaning sponge 2015 until the first cleaning scrapers 2010 are contacted with the outer walls of the next heat exchange tubes 8, when the rotating push block 206 is contacted with the inner walls of the first sliding grooves 2031, the operation is repeated, the outer walls of the next heat exchange tubes 8 can be scraped and cleaned, when the moving top plate 202 is reset under the pushing of the rotating push block 206 through the first sliding grooves 2031, the outer walls of the heat exchange tubes 7 and the dustproof mesh 6 can be cleaned again through the first cleaning sponge 2015 and the cleaning brushes 2017 respectively, and then the operation is repeated through the rotation of the eccentric disc 205, and the repeated cleaning of the dustproof mesh 6, the heat exchange tubes 7 and the outer walls of the heat exchange tubes 8 can be realized.
In the process of cleaning the heat exchange tube 7 and the heat exchange plate 8, water drops, dust and the like on the outer walls of the heat exchange tube 7 and the heat exchange plate 8 can be discharged along with water flow through the water discharging mechanism 3, so that water vapor generated in the shell 1 is effectively reduced, and the efficiency of drying materials is further improved.
The drainage mechanism 3 comprises: the guide slide 303 of sliding connection in shell 1 inner wall bottom, guide slide 303 contacts with the bottom outer wall of a plurality of first cleaning scraping plates 2010, one side integrated into one piece on guide slide 303 top has connecting block 305, the top integrated into one piece of connecting block 305 has guide bar 307, a plurality of wash ports 304 have been seted up to the horizontal equidistance of one end that guide slide 303 is close to connecting block 305 top, a plurality of wash ports 304 run through to the bottom outside of guide slide 303, the top outer wall of guide bar 307 is cylindrically, all seted up on a plurality of first cleaning scraping plates 2010 with connecting block 305, the stop collar groove 308 of guide bar 307 outer wall mutual coincide.
In this embodiment: when the plurality of first cleaning blades 2010 are driven by the moving top plate 202 to move longitudinally, the guide rods 307 can be driven by the plurality of first cleaning blades 2010 through the connecting blocks 305 to drive the guide sliding plates 303 to slide along the inner wall of the shell 1, when the plurality of first cleaning blades 2010 are driven by the moving top plate 202 to move transversely, the plurality of first cleaning blades 2010 can slide along the guide sliding plates 303, the connecting blocks 305 and the outer walls of the guide rods 307 through the limit sleeve grooves 308, and when the plurality of first cleaning blades 2010 are driven by the moving top plate 202 to slide and reset, the guide rods 307 can be driven by the plurality of first cleaning blades 2010 through the connecting blocks 305 to drive the guide sliding plates 303 to slide and reset along the inner wall of the shell 1, the upper surfaces of the guide sliding plates 303 are in inclined surfaces, and the outer walls at the bottom ends of the first cleaning blades 2010 are mutually attached to the outer surfaces of the guide sliding plates 303.
In the process of cleaning the heat exchange tube 7 and the heat exchange plate 8, water drops, dust and the like on the outer walls of the heat exchange tube 7 and the heat exchange plate 8 can contact with the upper surface of the diversion slide plate 303 along with the flowing or splashing mode of water flow, then the water flow slides along the upper surface of the diversion slide plate 303, when the water flow flows to the port of the drain hole 304, the water flow passes through the drain hole 304, the water inlet 306 to the inner wall of the drain chute 302, then the water flow flows to the inner wall of the drain pipe 301 along the inner wall of the drain chute 302, and then the water flow can be discharged through the drain pipe 301, so that the water vapor generated in the shell 1 is effectively reduced, and the efficiency of drying materials is further improved.
As a preferred embodiment of the present invention, two limit blocks 2018 are symmetrically formed on the outer wall of the connecting collar 2014, and a linear chute 2013 for sliding the limit blocks 2018 is formed on the upper and lower sides of the inner wall of the sliding sleeve 2012.
In this embodiment: through the mutual matching of the two limit sliding blocks 2018 and the linear sliding groove 2013, the connecting lantern ring 2014 can be always sleeved on the outer wall of the heat exchange tube 7.
As a preferred embodiment of the present invention, a drain pipe 301 is fixedly connected to one end of the housing 1, a drain chute 302 is provided in the housing 1 and is communicated with the inner cavity of the drain pipe 301, and a water inlet 306 is provided in the top end of the housing 1 and is communicated with the inner cavity of the drain hole 304.
In this embodiment: by the cooperation of the drain chute 302 with the water inlet 306, the collected water flow can be directed to the interior of the drain pipe 301, after which the water flow is discharged through the drain pipe 301.
The working principle of the invention is as follows: specific explanation is required: one end of the output pipe 4 far away from the shell 1 is fixedly connected with a heat absorption water pipe buried underground, and one end of the heat absorption water pipe far away from the output pipe 4 is fixedly connected with the input end of the output water pump.
When the device is used, cold air in the air inlet pipe 10 is pumped by the air inlet pump 20, the cold air is conveyed into the heat exchange pipe 7 after the first round of preheating is finished in the geothermal energy air heat exchanger 11, the heat exchange is carried out between the heat exchange pipe 7 and tail gas with waste heat conveyed by the air outlet pipe 9 in the shell 1, the second round of waste heat operation is finished after the temperature of the air in the heat exchange pipe 7 is further improved, and the air enters the heating device 13 for final heating operation.
In this process, the start motor 201 drives the eccentric disc 205 to rotate, at this time, the rotating push block 206 is driven by the eccentric disc 205 to slide along the inner wall of the first chute 2031, when the rotating push block 206 contacts with the inner wall of one side of the second chute 2032, at this time, the moving top plate 202 slides along the outer wall of the connecting push plate 209 under the pushing of the rotating push block 206, and at the same time, the moving top plate 202 slides along the inner wall of the housing 1 through the balls 204, at this time, the plurality of first cleaning scrapers 2010 are driven by the moving top plate 202 to drive the second cleaning sponge 2016 to slide along the outer wall of the heat exchange plate 8, so that one end outer walls of the plurality of heat exchange plates 8 can be scraped and cleaned, and meanwhile, the connecting collar 2014 slides along the inner wall of the sliding sleeve groove 2012 and the linear chute 2013 through the limiting slide 2018 under the blocking of the heat exchange tube 7, and the connecting block 305 is driven by the plurality of first cleaning scrapers 2010 through the guide rods 307 to drive the guiding slide 303 along the inner wall of the housing 1.
When the rotating push block 206 contacts with the inner wall of one end of the second sliding groove 2032, the moving top plate 202 drives the moving sleeve frame 207 to slide along the outer wall of the fixed plate 208 through the connecting push plate 209 under the pushing of the rotating push block 206, and meanwhile, the plurality of second cleaning scrapers 2011 can scrape and clean the outer wall of the dust screen 6 through the cleaning brushes 2017 under the driving of the moving sleeve frame 207.
Meanwhile, the plurality of first cleaning scrapers 2010 slide along the outer walls of the diversion slide plate 303, the connecting block 305 and the guide rod 307 through the limit sleeve grooves 308 under the driving of the movable top plate 202, the limit slide blocks 2018 are driven to move through the linear slide grooves 2013, at the moment, the connecting sleeve rings 2014 can scrape and clean the outer walls of the heat exchange tubes 7 through the first cleaning sponge 2015 under the driving of the limit slide blocks 2018 until the first cleaning scrapers 2010 are contacted with the outer walls of the next heat exchange plates 8, when the rotary push block 206 is contacted with the inner walls of the first slide grooves 2031, the operation is repeated at the moment, the outer walls of the next heat exchange plates 8 can be scraped and cleaned, when the movable top plate 202 is reset under the rotary push block 206 through the first slide grooves 2031, the outer walls of the heat exchange tubes 7 and the dustproof nets 6 can be cleaned again through the first cleaning sponge 2015 and the cleaning brushes 2017 respectively, the connecting block 305 can be driven by the plurality of first cleaning scrapers 2010 until the first cleaning scrapers 2010 are contacted with the outer walls of the next heat exchange plates 8, and then the operation is repeated through the rotation of the eccentric disc 205 to clean the outer walls of the heat exchange plates 6 and the dustproof plates 6.
In the process of cleaning the heat exchange tube 7 and the heat exchange plate 8, water drops and dust on the outer walls of the heat exchange tube 7 and the heat exchange plate 8 contact with the upper surface of the diversion slide plate 303 along with the flowing or splashing mode of water flow, then the water flow slides down along the upper surface of the diversion slide plate 303, when the water flow flows to the port of the drain hole 304, the water flow passes through the drain hole 304 and the water inlet 306 to the inner wall of the drain chute 302, then the water flow flows to the inner wall of the drain pipe 301 along the inner wall of the drain chute 302, and then the water flow can be discharged through the drain pipe 301.
The foregoing description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical solution of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (10)
1. A waste heat recycling and drying system comprises a drying chamber (12), wherein one end of the drying chamber (12) is connected with the rear end of an air inlet pipe (10), and the other end of the drying chamber (12) is connected with the front end of an air outlet pipe (9); the front end of the air inlet pipe (10) is communicated with an external air source through an air inlet pump (20), and a geothermal energy air heat exchanger (11), a waste heat exchanger (14) and a heating device (13) are sequentially connected in series from front to back on the air inlet pipe (10) between the air inlet pump (20) and the drying chamber (12); the geothermal energy air heat exchanger (11) is characterized by comprising a box body, wherein a heat exchange water pipe is arranged in the box body, the front end of the heat exchange water pipe is connected with one end of a water inlet pipe (17) through a water pump (18), the other end of the water inlet pipe (17) is inserted into a first geothermal well (16), the rear end of the heat exchange pipe is connected with one end of a water outlet pipe (15), and the other end of the water outlet pipe (15) is inserted into a second geothermal well (19); the front end and the rear end of the box body are respectively provided with a through hole, the box body is connected into the air inlet pipe (10) through the front through hole and the rear through hole, and cold air newly entering the air inlet pipe (10) can exchange heat with underground water in the heat exchange water pipe in the box body of the geothermal energy air heat exchanger (11) to perform primary preheating operation; the air after the first preheating operation enters the waste heat exchanger (14) along the air inlet pipe (10) to exchange heat with the air with waste heat used by the dried materials, so as to realize the second preheating operation; the air after the second preheating operation enters a heating device (13), is heated to the required drying temperature, enters a drying chamber (12) to carry out flowing drying operation on materials, and enters an air outlet pipe (9) and participates in the second preheating operation;
the waste heat exchanger (14) comprises a shell (1), heat exchange pipes (7) are arranged in the shell (1), a plurality of heat exchange plates (8) are transversely and equidistantly fixedly connected to the outer wall of the heat exchange pipes (7), an input pipe (5) is fixedly connected to the upper end of one end of the shell (1), an output pipe (4) is fixedly connected to the lower end of one end of the shell (1), and the waste heat exchanger (14) is connected into an air inlet pipe (10) in series through the input pipe (5) and the output pipe (4); the two ends of the shell (1) are respectively provided with an air inlet and an air outlet, the shell is connected in series into an air outlet pipe (9) through the air inlet and the air outlet, and dust screens (6) are respectively arranged on the air inlet and the air outlet; the tail end of the air outlet pipe (9) is inserted into the first geothermal well (16); the shell (1) is provided with a cleaning mechanism (2), and the cleaning mechanism (2) is used for improving the heating efficiency of the heat exchange tube (7) and the heat exchange plate (8) on air; the cleaning mechanism (2) comprises: a pushing assembly, a scraping assembly; the scraping component is arranged in the shell (1) and positioned on the heat exchange tube (7) and is used for removing dust and water drops on the dustproof net (6), the heat exchange tube (7) and the outer wall of the heat exchange plate (8); the pushing component is arranged on the shell (1) and used for driving the scraping component to move; the novel water-saving device is characterized in that a drainage mechanism (3) is arranged in the shell (1), and the drainage mechanism (3) is used for draining redundant water drops.
2. The waste heat recovery and reuse drying system according to claim 1, wherein said pushing assembly comprises: install motor (201) on shell (1) top, the output fixedly connected with of motor (201) is located eccentric disc (205) of shell (1) inside, the one end of eccentric disc (205) bottom is rotated through the pivot and is connected with rotation ejector pad (206), the top sliding connection of shell (1) inner wall has cup jointed on the removal roof (202) of rotation ejector pad (206) outer wall, offer on removal roof (202) and supply to rotate gliding spacing push groove (203) of ejector pad (206), the top symmetry of removal roof (202) is provided with two sets of balls (204), a set of ball (204) are provided with a plurality ofly, a plurality of ball (204) vertical equidistance rotate connect on the top of removal roof (202), and contact with the top of shell (1) inner wall.
3. The waste heat recovery and reuse drying system according to claim 2, wherein said scraping assembly comprises: two fixed plates (208) which are symmetrically and fixedly connected to the upper end of the inner wall of the shell (1), wherein the two fixed plates (208) are respectively positioned at two sides of the movable top plate (202), the outer walls of the two fixed plates (208) are respectively and fixedly connected with a movable sleeve frame (207) in a sliding manner, two connecting push plates (209) are symmetrically arranged at one side of the movable top plate (202), the two connecting push plates (209) penetrate through the outer side of the movable top plate (202) and are fixedly connected with the movable sleeve frame (207) on the outer walls of the two fixed plates (208), a plurality of second cleaning scrapers (2011) are transversely and equidistantly formed at the bottom end of the movable sleeve frame (207), a plurality of cleaning brushes (2017) are vertically and equidistantly connected to the outer walls of one side, close to the dustproof nets (6), of the plurality of cleaning brushes (2017) are respectively contacted with the outer surfaces of the two dustproof nets (6), a plurality of first cleaning scrapers (2010) sleeved on the outer walls of the heat exchange tubes (7) are transversely and equidistantly formed at the bottom end of the movable top plate (202), a plurality of cleaning scrapers (2010) are transversely and are respectively provided with a plurality of groups of cleaning scrapers (2012) of groups of cleaning sleeves (2012) which are transversely and equidistantly arranged on the plurality of groups of cleaning grooves (2012), the inner walls of a plurality of slip cap grooves (2012) are all slipped and are sleeved with a connecting collar (2014), the inner wall fixedly connected with of connecting collar (2014) is sleeved with a first cleaning sponge (2015) on the outer wall of a heat exchange tube (7), a plurality of second cleaning sponges (2016) are vertically fixedly connected with the outer walls of the two ends of a first cleaning scraper (2010), and a plurality of second cleaning sponges (2016) are arranged in a mutually staggered mode with a plurality of groups of slip cap grooves (2012).
4. Waste heat recovery and reuse drying system according to claim 1, characterized in that said drainage mechanism (3) comprises: the guide slide (303) of sliding connection in shell (1) inner wall bottom, guide slide (303) are contacted with the bottom outer wall of a plurality of first cleaning scraping plates (2010), one side integrated into one piece on guide slide (303) top has connecting block (305), the top integrated into one piece of connecting block (305) has guide bar (307), a plurality of wash port (304) have been seted up to the one end that guide slide (303) is close to connecting block (305) top horizontal equidistance, a plurality of wash port (304) run through to the bottom outside of guide slide (303).
5. The waste heat recycling and drying system according to claim 1, wherein the output pipe (4) and the input pipe (5) are fixedly connected with the end parts of the two ends of the heat exchange pipe (7) respectively and are communicated with the inner cavity of the heat exchange pipe (7), and one end of the input pipe (5) far away from the shell (1) is fixedly connected with the output end of the input pump.
6. The waste heat recovery and reuse drying system according to claim 2, wherein the limit pushing groove (203) comprises: the movable top plate comprises a first sliding groove (2031) formed in the top end of the movable top plate (202), a second sliding groove (2032) which is communicated with the inner cavity of the first sliding groove (2031) is formed in one side of the movable top plate (202), the inner wall of one side, far away from the second sliding groove (2032), of the first sliding groove (2031) is arc-shaped, and the inner wall of one side, far away from the first sliding groove (2031), of the second sliding groove (2032) is in a mutually symmetrical inclined plane shape.
7. The waste heat recovery and recycling drying system according to claim 3, wherein two limit sliding blocks (2018) are symmetrically formed on the outer wall of the connecting collar (2014), and linear sliding grooves (2013) for sliding the limit sliding blocks (2018) are respectively formed on the upper side and the lower side of the inner wall of the sliding sleeve groove (2012).
8. The waste heat recovery and reuse drying system according to claim 4, wherein the upper surface of the guide sliding plate (303) is inclined, and the outer wall of the bottom end of the first cleaning blade (2010) is attached to the outer surface of the upper surface of the guide sliding plate (303).
9. The waste heat recovery and reuse drying system according to claim 4, wherein the outer wall of the top end of the guide rod (307) is cylindrical, and the plurality of first cleaning scrapers (2010) are provided with limit sleeve grooves (308) which are mutually matched with the outer walls of the connecting block (305) and the guide rod (307).
10. The waste heat recovery and recycling drying system according to claim 4, wherein one end of the shell (1) is fixedly connected with a drain pipe (301), a drain chute (302) communicated with an inner cavity of the drain pipe (301) is arranged in the shell (1), and a water inlet (306) communicated with the inner cavity of the drain hole (304) is arranged at the top end of the drain chute (302) of the shell (1).
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| CN116123861A (en) * | 2023-04-11 | 2023-05-16 | 山东桑瑞斯新能源股份有限公司 | Waste heat recycling drying equipment |
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| JPH109660A (en) * | 1996-06-20 | 1998-01-16 | Mitsubishi Denki Bill Techno Service Kk | Air conditioner |
| CN104789711A (en) * | 2015-04-03 | 2015-07-22 | 成都力鑫科技有限公司 | Double-side air blowing type leather processing equipment |
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| CN117781613B (en) | 2024-05-07 |
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Denomination of invention: A waste heat recovery and reuse drying system Granted publication date: 20240507 Pledgee: Shandong Zhoucun Rural Commercial Bank Co.,Ltd. Pledgor: SHANDONG YICUN AIR CONDITIONING Co.,Ltd. Registration number: Y2024980030477 |
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