CN113701521A - Heat exchanger with backwashing function and using method thereof - Google Patents

Heat exchanger with backwashing function and using method thereof Download PDF

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Publication number
CN113701521A
CN113701521A CN202111004951.2A CN202111004951A CN113701521A CN 113701521 A CN113701521 A CN 113701521A CN 202111004951 A CN202111004951 A CN 202111004951A CN 113701521 A CN113701521 A CN 113701521A
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China
Prior art keywords
filter
pipe
box
water
heat exchange
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Application number
CN202111004951.2A
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Chinese (zh)
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CN113701521B (en
Inventor
刘红军
张凌霞
张志峰
胡西芹
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Anhui Propellent Heat Transfer Technology Co ltd
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Anhui Propellent Heat Transfer Technology Co ltd
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Publication of CN113701521A publication Critical patent/CN113701521A/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/053Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D29/00Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/11Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D29/00Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/50Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
    • B01D29/56Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D29/00Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/62Regenerating the filter material in the filter
    • B01D29/66Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
    • B01D29/68Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles
    • B01D29/688Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles with backwash arms or shoes acting on the cake side
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D29/00Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/62Regenerating the filter material in the filter
    • B01D29/70Regenerating the filter material in the filter by forces created by movement of the filter element
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F13/00Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/06Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
    • F28F13/12Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by creating turbulence, e.g. by stirring, by increasing the force of circulation
    • F28F13/125Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by creating turbulence, e.g. by stirring, by increasing the force of circulation by stirring
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F17/00Removing ice or water from heat-exchange apparatus
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F19/00Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
    • F28F19/01Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using means for separating solid materials from heat-exchange fluids, e.g. filters

Abstract

The invention relates to the technical field of heat exchangers, in particular to a heat exchanger with a backwashing function and a using method thereof, the heat exchanger comprises a heat exchange box, a hot water pipe is arranged in the heat exchange box, one end of the hot water pipe is communicated with a first filter box, the bottom of the heat exchange box is communicated with a second filter box, a filter mechanism is arranged in the second filter box, a backwashing mechanism is arranged in the first filter box, the bottoms of the first filter box and the second filter box are respectively provided with a drain pipe and a water outlet pipe, one group of water outlet pipes are communicated with the hot water pipe, the hot water is filtered and then output, after long-term use, the drain pipe at the bottom of the second filter box is opened, the water outlet pipe is closed, the filter element is driven to rotate by a turntable, a clamping block is clamped with a clamping groove by an elastic belt, the overturned filter element is fixed, the water in the heat exchange box carries out the filter element, and the backwashed water is discharged through the drain pipe, therefore, the filtering device can be cleaned well, and the filtering device can keep good filtering performance.

Description

Heat exchanger with backwashing function and using method thereof
Technical Field
The invention relates to the technical field of heat exchangers, in particular to a heat exchanger with a back washing function and a using method thereof.
Background
The heat exchanger is an energy-saving device for transferring heat between materials between two or more fluids with different temperatures, and is also called a heat exchanger, and is one of main devices for improving the energy utilization rate, wherein the heat is transferred from the fluid with higher temperature to the fluid with lower temperature, and the temperature of the fluid reaches the index specified by the process so as to meet the requirements of process conditions. The heat exchanger plays an important role in chemical industry, petroleum industry, power industry, food industry and other industrial production, can be used as a heater, a cooler, a condenser, an evaporator, a reboiler and the like in chemical industry production, and is widely applied;
the heat exchanger industry relates to more than 30 industries such as heating ventilation, pressure vessels, reclaimed water treatment equipment, chemical industry, petroleum and the like, and an industrial chain is formed mutually. Data show that the market scale of the heat exchanger industry in China in 2010 is about 500 million yuan, and the heat exchanger industry is mainly focused in the fields of petroleum, chemical engineering, metallurgy, electric power, ships, central heating, refrigeration and air conditioning, machinery, food, pharmacy and the like;
heat exchangers are often used in petroleum, chemical, light industry, pharmaceutical, energy and other industrial processes to heat a low temperature fluid or to cool a high temperature fluid, to vaporize a liquid into a vapor, or to condense a vapor into a liquid. The heat exchanger can be a unit device such as a heater, a cooler, a condenser and the like; or may be an integral part of a piece of process equipment, such as a heat exchanger in an ammonia synthesis column. The heat exchanger is an important unit device in chemical production, and according to statistics, the tonnage of the heat exchanger accounts for about 20 percent of the whole process equipment and even reaches 30 percent, and the importance of the heat exchanger can be thought of;
the heat exchanger is suitable for heat exchangers with different media, different working conditions, different temperatures and different pressures, and has different structural types, and the heat exchangers are specifically classified as follows; firstly, classifying according to a heat transfer principle: dividing wall type heat exchanger, heat accumulating type heat exchanger, indirect heat exchanger of fluid connection, direct contact type heat exchanger, duplex heat exchanger; II, classifying according to purposes: the system comprises a heater, a preheater, a heat exchanger, a superheater and an evaporator; thirdly, classifying according to the structure: floating head heat exchangers, fixed tube-plate heat exchangers, U-shaped tube-plate heat exchangers, and the like.
The existing heat exchanger cannot well clean the filter element after filtering water, after long-term use, the filter element has poor filtering effect, and heat transfer is slow when heat exchange is carried out, so that the heat exchange efficiency is low.
Disclosure of Invention
Aiming at the existing problems, the invention provides the heat exchanger with the back washing function and the use method thereof, the filtering device is better cleaned, the filtering device keeps better filtering performance, the heat transfer is accelerated through the reciprocating sliding of the mixing plate, the heat exchange efficiency is improved, and the stirring shaft drives the plurality of groups of stirring blades to rotate, so that the mobility of water is increased, and the water is better and faster filtered by the filtering core.
In order to achieve the above object, the present invention adopts the following technical solutions:
the heat exchanger with the back flushing function comprises a heat exchange box, wherein a hot water pipe is arranged inside the heat exchange box, one end of the hot water pipe is communicated with a first filter box, the bottom of the heat exchange box is communicated with a second filter box, a filter mechanism is arranged in the second filter box, a back flushing mechanism is arranged in the first filter box, a drain pipe and a water outlet pipe are arranged at the bottoms of the first filter box and the second filter box, and a group of water outlet pipes are communicated with the hot water pipe.
Preferably, the back washing mechanism comprises a filter cylinder, a rotating pipe, a cleaning brush, an external gear, an internal gear ring, a first motor, a transmission gear, a water inlet pipe and a washing pipe;
the filter cartridge is connected to the first filter box in a rotating mode, a rotating pipe is connected to the filter cartridge in a rotating mode, a group of water outlet pipes correspond to the interior of the filter cartridge, an inner gear ring is fixedly arranged at the top of the filter cartridge, a cleaning brush attached to the inner wall of the filter cartridge is fixedly arranged on one side of the rotating pipe, an outer gear is fixedly arranged on the outer side of the rotating pipe penetrating through the filter cartridge, the bottom of the first filter box is communicated with a water inlet pipe, the top of the water inlet pipe is communicated with a flushing pipe, the flushing pipe is rotatably connected with the rotating pipe, a first motor is installed at the top of the first filter box, and the output end of the first motor is connected with a transmission gear meshed with the outer gear and the inner gear ring.
Preferably, the filtering mechanism comprises a filtering core, a rotary disc, an elastic belt, a clamping block and a clamping groove;
the second rose box rotates in and is connected with the rose core, and the outside of second rose box rotates and is connected with the carousel, and the carousel is connected with the rose core, and the top of carousel all opens the draw-in groove with the bottom, and the outside of second rose box is fixed and is provided with the elastic webbing, and the bottom of elastic webbing is fixed be provided with draw-in groove matched with fixture block.
Preferably, a heat mixing mechanism is further arranged in the heat exchange box, and the heat mixing mechanism comprises a screw rod, a mixing plate, a stirring shaft, a stirring blade, a bevel pinion, a rotating rod, a first bevel gear and a second bevel gear;
the heat exchange box is characterized in that screw rods are rotatably connected in the heat exchange box, one side, away from each other, of each of the two sets of screw rods is connected with a mixing plate in a threaded manner, a mixing shaft is rotatably connected in the second filtering box, a plurality of groups of mixing blades are fixedly arranged on the outer side of the mixing shaft, the two sets of screw rods and one side of the mixing shaft all extend out of the heat exchange box and are fixedly provided with small bevel gears in the second filtering box, the outer side of the heat exchange box is rotatably connected with a rotating rod, a first large bevel gear is fixedly arranged on the outer side of the rotating rod and is meshed with the tops of the two sets of small bevel gears, a second large bevel gear is fixedly arranged on the outer side of the rotating rod and is meshed with the bottom of one of the small bevel gears, and a reciprocating power mechanism connected with the heat mixing mechanism is arranged on the top of the heat exchange box.
Preferably, the reciprocating power mechanism comprises a second motor, an eccentric frame, a connecting rod, a rack and a straight gear;
the top of the heat exchange box is rotatably connected with an eccentric frame, the outer side of the eccentric frame is rotatably connected with a connecting rod, one side of the top of the heat exchange box is slidably connected with a rack, one side of the rack is rotatably connected with the connecting rod, a second motor is installed at the top of the heat exchange box, the output end of the second motor is connected with the eccentric frame, and a straight gear meshed with the rack is fixedly arranged at the top of the rotating rod.
Preferably, the inside of mixing plate is opened has the multiunit through-hole, and the inside fixed brush that is provided with and hot-water line matched with of mixing plate, the fixed guide bar that is provided with in the heat transfer case, mixing plate and guide bar sliding connection.
Preferably, the inside of the sewage draining pipe is also provided with a water draining valve, one side of the water draining valve extends out of the sewage draining pipe and is fixedly connected with a first valve bevel gear, a water passing valve is arranged in the water outlet pipe, one side of the water passing valve extends out of the water outlet pipe and is fixedly connected with a second valve bevel gear, and the bottoms of the first filtering tank and the second filtering tank are both rotatably connected with a top gear meshed with the first valve bevel gear and the second valve bevel gear.
Preferably, the outside of cartridge filter still fixedly is provided with the multiunit mount, and the cartridge filter rotates through the mount and is connected with the clean gyro wheel of multiunit, and clean gyro wheel and the laminating of filter cartridge outer wall and first rose box inner wall mutually.
Preferably, the filter cartridge and the aperture of filtering the core decrease progressively from top to bottom, and one side of changeing the pipe is provided with the multiunit apopore.
A use method of a heat exchanger with a back washing function comprises the following steps:
step 1: opening a water inlet pipe and a water outlet pipe, closing a flushing pipe and a blow-off pipe, injecting cold water into a heat exchange tank, allowing hot water to enter a hot water pipe through a first filter tank, filtering the hot water by using a filter cartridge, performing heat exchange on the cold water in the heat exchange tank by using the hot water pipe, discharging the water after heat exchange through a second filter tank, and filtering the water by using a filter element;
step 2: when the filter cartridge and the filter element need to be cleaned, the water outlet pipes and the water inlet pipes of the first filter tank and the second filter tank are closed, the flushing pipe and the blow-off pipe are opened, and water in the flushing pipe enters the filter cartridge through the rotating pipe for back flushing;
and step 3: starting a first motor, driving a transmission gear to rotate by the first motor, driving a filter cartridge and a rotating pipe to rotate in opposite directions by the transmission gear through an inner gear ring and an outer gear ring, fully cleaning the inner wall of the filter cartridge by a cleaning brush in a backwashing process, and discharging the cleaned sewage through a discharge pipe;
and 4, step 4: the filter element is driven to rotate by the turntable, the clamping block is clamped with the clamping groove by the elastic belt to fix the overturned filter element, the filter element is backwashed by water in the heat exchange box, and the water after being flushed is discharged by a drain pipe;
and 5: after the cleaning is finished, the filter element is reset through the rotary table, the first motor stops, the water outlet pipe and the water inlet pipe of the first filter box and the second filter box are opened, the flushing pipe and the blow-off pipe are closed, and the heat exchange box can be normally used.
Due to the adoption of the technical scheme, the invention has the beneficial effects that: the invention hot water enters a hot water pipe through a first filter box, the filter cylinder filters the hot water, the hot water pipe exchanges heat with the hot water in the heat exchange box, when the filter cylinder needs to be cleaned, a water outlet pipe and a water inlet pipe of the first filter box are closed, a flushing pipe and a drain pipe are opened, the water in the flushing pipe enters the filter cylinder through a rotating pipe for back flushing, a first motor drives a transmission gear to rotate, the transmission gear drives the filter cylinder and the rotating pipe to rotate towards opposite directions through an inner gear ring and an outer gear, so that a cleaning brush fully cleans the inner wall of the filter cylinder in the process of back flushing, and the cleaned sewage is discharged through the drain pipe. The second motor drives the connecting rod through the rotation of the eccentric frame, the connecting rod drives the rack to slide back and forth due to the sliding connection of the rack and the heat exchange box, the rack drives the rotating rod to rotate back and forth through a straight gear, the rotating rod drives one group of screw rods and the stirring shaft to rotate through a first big bevel gear, the second big bevel gear drives the other group of screw rods to rotate, the two groups of screw rods rotate in opposite directions, the two groups of mixing plates slide back and forth in opposite directions under the driving of the screw rods due to the limit of the guide rod, the through holes on the mixing plates enable water to be extruded and mixed better, so that the mixing plates slide back and forth to accelerate heat transfer and improve the heat exchange efficiency, and the stirring shafts drive the stirring blades to rotate, the fluidity of the water is increased, so that the water is filtered by the filter element better and faster.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only for the present invention and protect some embodiments, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of example 1 of the present invention;
FIG. 2 is a schematic structural diagram of example 2 of the present invention;
fig. 3 is a schematic structural view of a first filter tank in embodiment 3 of the present invention;
FIG. 4 is a schematic structural view of a second filtering tank in embodiment 3 of the present invention;
FIG. 5 is a side view of the secondary filter tank of the present invention;
FIG. 6 is a schematic view of the structure of the mixing plate of the present invention.
In the figure: 1. a heat exchange box; 2. a hot water pipe; 3. a first filter tank; 4. a filter cartridge; 5. pipe rotation; 6. a cleaning brush; 7. an outer gear; 8. an inner gear ring; 9. a first motor; 10. a transmission gear; 11. a water inlet pipe; 12. a flush tube; 13. a blow-off pipe; 14. a water outlet pipe; 15. a second filter tank; 16. a filter element; 17. a turntable; 18. an elastic band; 19. a clamping block; 20. a card slot; 21. a drain valve; 22. a water valve; 23. a screw rod; 24. a mixing plate; 25. a stirring shaft; 26. stirring blades; 27. a bevel pinion gear; 28. a rotating rod; 29. a first big bevel gear; 30. a second big bevel gear; 31. a second motor; 32. an eccentric frame; 33. a connecting rod; 34. a rack; 35. a spur gear; 36. a first valve bevel gear; 37. a second valve bevel gear; 38. a top gear; 39. a fixed mount; 40. cleaning the roller; 41. a through hole; 42. a brush; 43. a guide rod.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention.
Example 1
The utility model provides a heat exchanger with back flush function, includes heat transfer case 1, and the inside of heat transfer case 1 is provided with hot-water line 2, and the one end intercommunication of hot-water line 2 has first rose box 3, and the bottom intercommunication of heat transfer case 1 has second rose box 15, and is provided with filtering mechanism in the second rose box 15, is provided with back flush mechanism in the first rose box 3, and the bottom of first rose box 3 and second rose box 15 all is provided with blow off pipe 13 and outlet pipe 14, and one of them group's outlet pipe 14 is linked together with hot-water line 2.
The back washing mechanism comprises a filter cartridge 4, a rotating pipe 5, a cleaning brush 6, an external gear 7, an internal gear ring 8, a first motor 9, a transmission gear 10, a water inlet pipe 11 and a washing pipe 12;
the filter cartridge 4 is rotatably connected to the first filter box 3, the rotating pipe 5 is rotatably connected to the filter cartridge 4, a group of water outlet pipes 14 correspond to the interior of the filter cartridge 4, an inner gear ring 8 is fixedly arranged at the top of the filter cartridge 4, a cleaning brush 6 attached to the inner wall of the filter cartridge 4 is fixedly arranged on one side of the rotating pipe 5, an outer gear 7 is fixedly arranged on the outer side of the rotating pipe 5 penetrating through the filter cartridge 4, a water inlet pipe 11 is communicated with the bottom of the first filter box 3, a flushing pipe 12 is communicated with the top of the water inlet pipe 11, the flushing pipe 12 is rotatably connected with the rotating pipe 5, a first motor 9 is installed at the top of the first filter box 3, and the output end of the first motor 9 is connected with a transmission gear 10 meshed with the outer gear 7 and the inner gear ring 8.
The filtering mechanism comprises a filtering core 16, a turntable 17, an elastic belt 18, a clamping block 19 and a clamping groove 20;
the second filtering tank 15 is rotatably connected with a filtering core 16, the outer side of the second filtering tank 15 is rotatably connected with a rotating disc 17, the rotating disc 17 is connected with the filtering core 16, the top and the bottom of the rotating disc 17 are both provided with clamping grooves 20, the outer side of the second filtering tank 15 is fixedly provided with an elastic belt 18, and the bottom of the elastic belt 18 is fixedly provided with clamping blocks 19 matched with the clamping grooves 20.
The bore diameters of the filter cartridge 4 and the filter element 16 decrease progressively from top to bottom, and one side of the rotating pipe 5 is provided with a plurality of groups of water outlets.
A use method of a heat exchanger with a back washing function comprises the following steps:
step 1: opening a water inlet pipe 11 and a water outlet pipe 14, closing a flushing pipe 12 and a sewage discharge pipe 13, injecting cold water into the heat exchange tank 1, enabling hot water to enter a hot water pipe 2 through a first filter tank 3, filtering the hot water through a filter cartridge 4, enabling the hot water pipe 2 to carry out heat exchange on the cold water in the heat exchange tank 1, discharging the heat-exchanged water through a second filter tank 15, and filtering the heat-exchanged water through a filter element 16;
step 2: when the filter cartridge 4 and the filter element 16 need to be cleaned, the water outlet pipe 14 and the water inlet pipe 11 of the first filter tank 3 and the second filter tank 15 are closed, the flushing pipe 12 and the sewage discharge pipe 13 are opened, and water in the flushing pipe 12 enters the filter cartridge 4 through the rotating pipe 5 for backwashing;
and step 3: starting a first motor 9, driving a transmission gear 10 to rotate by the first motor 9, driving the filter cartridge 4 and the rotating pipe 5 to rotate in opposite directions by the transmission gear 10 through the inner gear ring 8 and the outer gear 7, fully cleaning the inner wall of the filter cartridge 4 by the cleaning brush 6 in the back flushing process, and discharging the cleaned sewage through a discharge pipe 13;
and 4, step 4: the filter element 16 is driven to rotate by the rotary table 17, the elastic belt 18 enables the clamping block 19 to be clamped with the clamping groove 20, the overturned filter element 16 is fixed, the filter element 16 is backwashed by water in the heat exchange box 1, and the water after being flushed is discharged through the drain pipe 13;
and 5: after the cleaning is finished, the filter element 16 is reset through the rotary table 17, the first motor 9 is stopped, the water outlet pipe 14 and the water inlet pipe 11 of the first filter tank 3 and the second filter tank 15 are opened, the flushing pipe 12 and the sewage discharge pipe 13 are closed, and the heat exchange box 1 can be normally used.
First motor 9 drives cartridge filter 4 and changes 5 relative direction rotations of orientation of pipe for better carry out the backwashing to cartridge filter 4, thereby can be better carry out regular cleaning to filter equipment, make filter equipment keep better filtering quality, the water to the heat exchanger that can last filters.
Example 2
On the basis of the example 1, the method comprises the following steps of,
the heat exchange box 1 is also provided with a heat mixing mechanism, and the heat mixing mechanism comprises a screw rod 23, a mixing plate 24, a stirring shaft 25, a stirring blade 26, a small bevel gear 27, a rotating rod 28, a first big bevel gear 29 and a second big bevel gear 30;
the screw rod 23 is rotatably connected in the heat exchange box 1, one side, far away from the two screw rods 23, of each screw rod is in threaded connection with a mixing plate 24, the second filter box 15 is rotatably connected with a stirring shaft 25, a plurality of groups of stirring blades 26 are fixedly arranged on the outer side of the stirring shaft 25, the two screw rods 23 and one side of the stirring shaft 25 extend out of the heat exchange box 1 and are fixedly provided with small bevel gears 27 with the second filter box 15, the outer side of the heat exchange box 1 is rotatably connected with a rotating rod 28, a first large bevel gear 29 is fixedly arranged on the outer side of the rotating rod 28, the first large bevel gear 29 is meshed with the tops of the two groups of small bevel gears 27, a second large bevel gear 30 is fixedly arranged on the outer side of the rotating rod 28, the second large bevel gear 30 is meshed with the bottom of one group of the small bevel gears 27, and a reciprocating power mechanism connected with the heat mixing mechanism is arranged on the top of the heat exchange box 1.
The reciprocating power mechanism comprises a second motor 31, an eccentric frame 32, a connecting rod 33, a rack 34 and a straight gear 35;
the top of the heat exchange box 1 is rotatably connected with an eccentric frame 32, the outer side of the eccentric frame 32 is rotatably connected with a connecting rod 33, one side of the top of the heat exchange box 1 is slidably connected with a rack 34, one side of the rack 34 is rotatably connected with the connecting rod 33, the second motor 31 is installed at the top of the heat exchange box 1, the output end of the second motor 31 is connected with the eccentric frame 32, and a straight gear 35 meshed with the rack 34 is fixedly arranged at the top of the rotating rod 28.
A plurality of groups of through holes 41 are formed in the mixing plate 24, a brush 42 matched with the hot water pipe 2 is fixedly arranged in the mixing plate 24, a guide rod 43 is fixedly arranged in the heat exchange box 1, and the mixing plate 24 is connected with the guide rod 43 in a sliding manner.
The use method of the invention also comprises the following steps: the second motor 31 is started, the second motor 31 rotates through the eccentric frame 32 to drive the connecting rod 33, the rack 34 is connected with the heat exchange box 1 in a sliding mode, the connecting rod 33 drives the rack 34 to slide in a reciprocating mode, the rack 34 drives the rotating rod 28 to rotate in a reciprocating mode through the straight gear 35, the rotating rod 28 drives one group of screw rods 23 and the stirring shaft 25 to rotate through the first big bevel gear 29, the second big bevel gear 30 drives the other group of screw rods 23 to rotate, the two groups of screw rods 23 rotate in opposite directions, due to the limiting of the guide rod 43, the two groups of mixing plates 24 slide in the opposite directions in a reciprocating mode under the driving of the screw rods 23, the water is extruded and mixed better through the through holes 41 in the mixing plates 24, and therefore the heat transfer is accelerated through the reciprocating sliding of the mixing plates 24, the heat exchange efficiency is improved, and the stirring shaft 25 drives the groups of stirring blades 26 to rotate, the mobility of the water is increased, and the water is filtered by the filter core 16 better and faster.
Example 3
On the basis of the example 2, the method comprises the following steps of,
the inside of the sewage draining pipe 13 is also provided with a water draining valve 21, one side of the water draining valve 21 extends out of the sewage draining pipe 13 and is fixedly connected with a first valve bevel gear 36, the water outlet pipe 14 is internally provided with a water passing valve 22, one side of the water passing valve 22 extends out of the water outlet pipe 14 and is fixedly connected with a second valve bevel gear 37, and the bottoms of the first filtering tank 3 and the second filtering tank 15 are both rotatably connected with a top gear 38 which is meshed with the first valve bevel gear 36 and the second valve bevel gear 37.
The outside of cartridge filter 4 still fixedly is provided with multiunit mount 39, and cartridge filter 4 rotates through mount 39 and is connected with multiunit clean gyro wheel 40, and clean gyro wheel 40 and 4 outer walls of cartridge filter and 3 inner walls of first rose box laminate mutually.
The use method of the invention also comprises the following steps: when the drainage valve 21 and the water valve 22 need to be opened and closed, the drainage valve 21 is rotated, the first valve bevel gear 36 drives the top gear 38 to rotate, the top gear 38 drives the second valve bevel gear 37 to rotate towards the direction opposite to the direction of the first valve bevel gear 36, so that when the drainage pipe 13 and the water outlet pipe 14 are opened and closed, the drainage valve 21 is rotated to close the drainage pipe 13, the water outlet pipe 14 is opened, when the drainage pipe 13 is opened, the water outlet pipe 14 is closed, the use is more convenient, when the filter cartridge 4 rotates, the multiple groups of cleaning rollers 40 passively rotate, the outer wall of the filter cartridge 4 and the inner wall of the first filter box 3 are cleaned, and the backwashing effect is better.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims (10)

1. The utility model provides a heat exchanger with back flush function, includes heat exchange case (1), its characterized in that: the inside of heat transfer case (1) is provided with hot-water line (2), and the one end intercommunication of hot-water line (2) has first rose box (3), the bottom intercommunication of heat transfer case (1) has second rose box (15), and is provided with filtering mechanism in second rose box (15), be provided with back flush mechanism in first rose box (3), and the bottom of first rose box (3) and second rose box (15) all is provided with blow off pipe (13) and outlet pipe (14), and one of them is a set of outlet pipe (14) are linked together with hot-water line (2).
2. The heat exchanger with backwashing function according to claim 1, wherein: the back washing mechanism comprises a filter cylinder (4), a rotating pipe (5), a cleaning brush (6), an external gear (7), an internal gear ring (8), a first motor (9), a transmission gear (10), a water inlet pipe (11) and a washing pipe (12);
a filter cylinder (4) is rotatably connected in the first filter box (3), a rotating pipe (5) is rotatably connected in the filter cylinder (4), wherein one group of the water outlet pipes (14) corresponds to the inside of the filter cartridge (4), the top of the filter cartridge (4) is fixedly provided with an inner gear ring (8), a cleaning brush (6) which is attached to the inner wall of the filter cylinder (4) is fixedly arranged on one side of the rotating pipe (5), an external gear (7) is fixedly arranged on the rotating pipe (5) through the outer side of the filter cylinder (4), the bottom of the first filter box (3) is communicated with a water inlet pipe (11), the top of the water inlet pipe (11) is communicated with a flushing pipe (12), the flushing pipe (12) is rotationally connected with the rotating pipe (5), a first motor (9) is arranged at the top of the first filter tank (3), and the output end of the first motor (9) is connected with a transmission gear (10) which is meshed with the external gear (7) and the internal gear ring (8).
3. The heat exchanger with backwashing function according to claim 1, wherein: the filtering mechanism comprises a filtering core (16), a rotating disc (17), an elastic belt (18), a clamping block (19) and a clamping groove (20);
the filter core (16) is connected to the second filter box (15) in a rotating mode, the rotary table (17) is connected to the outer side of the second filter box (15) in a rotating mode, the rotary table (17) is connected with the filter core (16), the clamping grooves (20) are formed in the top and the bottom of the rotary table (17), the elastic belt (18) is fixedly arranged on the outer side of the second filter box (15), and the clamping blocks (19) matched with the clamping grooves (20) are fixedly arranged at the bottom of the elastic belt (18).
4. The heat exchanger with a back flushing function according to claim 3, characterized in that: the heat exchange box (1) is also internally provided with a heat mixing mechanism, and the heat mixing mechanism comprises a screw rod (23), a mixing plate (24), a stirring shaft (25), a stirring blade (26), a small bevel gear (27), a rotating rod (28), a first big bevel gear (29) and a second big bevel gear (30);
the heat exchange box (1) is rotatably connected with screw rods (23), one side, far away from the two groups of screw rods (23), of the heat exchange box (1) is in threaded connection with a mixing plate (24), the second filter box (15) is rotatably connected with a stirring shaft (25), a plurality of groups of stirring blades (26) are fixedly arranged on the outer side of the stirring shaft (25), the two groups of screw rods (23) and one side of the stirring shaft (25) extend out of the heat exchange box (1) and are fixedly provided with small bevel gears (27) with the second filter box (15), the outer side of the heat exchange box (1) is rotatably connected with a rotating rod (28), the outer side of the rotating rod (28) is fixedly provided with a first large bevel gear (29), the first large bevel gear (29) is meshed with the tops of the two groups of small bevel gears (27), the outer side of the rotating rod (28) is fixedly provided with a second large bevel gear (30), and the second large bevel gear (30) is meshed with the bottom of one group of small bevel gears (27), and a reciprocating power mechanism connected with the heat mixing mechanism is arranged at the top of the heat exchange box (1).
5. The heat exchanger with backwashing function as claimed in claim 4, wherein: the reciprocating power mechanism comprises a second motor (31), an eccentric frame (32), a connecting rod (33), a rack (34) and a straight gear (35);
the top of heat exchange box (1) is rotated and is connected with eccentric bracket (32), and the outside of eccentric bracket (32) is rotated and is connected with connecting rod (33), one side sliding connection at heat exchange box (1) top has rack (34), and one side of rack (34) rotates with connecting rod (33) and is connected, second motor (31) is installed at heat exchange box (1) top, and the output of second motor (31) is connected with eccentric bracket (32), the fixed spur gear (35) that are provided with and rack (34) mesh in top of bull stick (28).
6. The heat exchanger with backwashing function as claimed in claim 5, wherein: the inside of mixing plate (24) is opened has multiunit through-hole (41), and the inside of mixing plate (24) is fixed be provided with hot-water line (2) matched with brush (42), the fixed guide bar (43) that is provided with in heat exchange box (1), mixing plate (24) and guide bar (43) sliding connection.
7. The heat exchanger with backwashing function according to claim 1, wherein: the inside of blow off pipe (13) still is provided with drain valve (21), and one side of drain valve (21) extends first valve bevel gear (36) of blow off pipe (13) fixedly connected with, be provided with in outlet pipe (14) water service valve (22), and one side of water service valve (22) extends outlet pipe (14) fixedly connected with second valve bevel gear (37), first rose box (3) all rotate with the bottom of second rose box (15) and be connected with top gear (38) with first valve bevel gear (36) and second valve bevel gear (37) engaged with.
8. The heat exchanger with backwashing function according to claim 2, wherein: the outer side of the filter cartridge (4) is fixedly provided with a plurality of groups of fixing frames (39), the filter cartridge (4) is rotatably connected with a plurality of groups of cleaning rollers (40) through the fixing frames (39), and the cleaning rollers (40) are attached to the outer wall of the filter cartridge (4) and the inner wall of the first filter box (3).
9. The heat exchanger with a back flushing function according to claim 3, characterized in that: the aperture of cartridge filter (4) and filter core (16) from top to bottom steadilys decrease, one side of runner (5) is provided with the multiunit apopore.
10. A use method of a heat exchanger with a back washing function is characterized in that: the method comprises the following steps:
step 1: opening a water inlet pipe (11) and a water outlet pipe (14), closing a flushing pipe (12) and a sewage discharge pipe (13), injecting cold water into a heat exchange box (1), enabling hot water to enter a hot water pipe (2) through a first filter box (3), filtering the hot water through a filter cartridge (4), performing heat exchange on the cold water in the heat exchange box (1) through the hot water pipe (2), discharging the heat-exchanged water through a second filter box (15), and filtering the heat-exchanged water through a filter element (16);
step 2: when the filter cartridge (4) and the filter element (16) need to be cleaned, the water outlet pipe (14) and the water inlet pipe (11) of the first filter tank (3) and the second filter tank (15) are closed, the flushing pipe (12) and the sewage discharge pipe (13) are opened, and water in the flushing pipe (12) enters the filter cartridge (4) through the rotating pipe (5) for backwashing;
and step 3: the cleaning device is characterized in that a first motor (9) is started, the first motor (9) drives a transmission gear (10) to rotate, the transmission gear (10) drives a filter cylinder (4) and a rotating pipe (5) to rotate towards opposite directions through an inner gear ring (8) and an outer gear (7), so that a cleaning brush (6) can fully clean the inner wall of the filter cylinder (4) in the back flushing process, and the cleaned sewage is discharged through a sewage discharge pipe (13);
and 4, step 4: the filter element (16) is driven to rotate by the rotary table (17), the elastic belt (18) enables the clamping block (19) to be clamped with the clamping groove (20) to fix the overturned filter element (16), the filter element (16) is backwashed by water in the heat exchange box (1), and the flushed water is discharged through the drain pipe (13);
and 5: after the cleaning is finished, the filter element (16) is reset through the rotary disc (17), the first motor (9) is stopped, the water outlet pipe (14) and the water inlet pipe (11) of the first filter box (3) and the second filter box (15) are opened, the flushing pipe (12) and the sewage discharge pipe (13) are closed, and the heat exchange box (1) can be normally used.
CN202111004951.2A 2021-08-30 2021-08-30 Heat exchanger with back flushing function and use method thereof Active CN113701521B (en)

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JPH1183363A (en) * 1997-09-16 1999-03-26 Mitsubishi Materials Corp Heat exchanger and method for heat exchanging
KR101985292B1 (en) * 2018-08-21 2019-06-05 주식회사 에스케이에프엠 Water purification device with filter automatic cleaning function
CN210521940U (en) * 2019-06-24 2020-05-15 河南天亿环保科技有限公司 Sewage filtering device with automatic cleaning function
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Publication number Priority date Publication date Assignee Title
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CN115193258B (en) * 2022-07-26 2023-10-27 江苏真蒡生物科技有限公司 Burdock polysaccharide processing is with microfiltration membrane filter equipment

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Application publication date: 20211126

Assignee: Beijing Hua'enzhongshi Energy Technology Co.,Ltd.

Assignor: ANHUI PROPELLENT HEAT TRANSFER TECHNOLOGY Co.,Ltd.

Contract record no.: X2024980002983

Denomination of invention: A heat exchanger with backwashing function and its usage method

Granted publication date: 20230818

License type: Common License

Record date: 20240322