CN107255424B - A kind of dust-laden hot exhaust gas heat recovering heat exchanger with self-cleaning function - Google Patents
A kind of dust-laden hot exhaust gas heat recovering heat exchanger with self-cleaning function Download PDFInfo
- Publication number
- CN107255424B CN107255424B CN201710470250.5A CN201710470250A CN107255424B CN 107255424 B CN107255424 B CN 107255424B CN 201710470250 A CN201710470250 A CN 201710470250A CN 107255424 B CN107255424 B CN 107255424B
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- Prior art keywords
- core
- dust
- self
- cleaning
- heat
- Prior art date
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Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 45
- 239000003351 stiffener Substances 0.000 claims abstract description 14
- 239000000428 dust Substances 0.000 claims abstract description 11
- 238000003466 welding Methods 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 4
- 238000004064 recycling Methods 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000005192 partition Methods 0.000 abstract description 6
- 206010044565 Tremor Diseases 0.000 abstract description 2
- 238000009987 spinning Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 6
- 238000001035 drying Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000037237 body shape Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G3/00—Rotary appliances
- F28G3/10—Rotary appliances having scrapers, hammers, or cutters, e.g. rigidly mounted
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention belongs to technical field of heat exchangers, are related to a kind of dust-laden hot exhaust gas heat recovering heat exchanger with self-cleaning function.Channel interior installs self-cleaning core, and core is arc triangle structure, and the stiffener plate inside core is bent plate component, tangential force is generated after the choke of windward side, so that entire core be pushed to do spinning campaign inside heat exchanger.The eccentric structure on core top limits and guides core rotary road line, prevents the appearance of the strong collision and stuck problem of core and wooden partition in wind speed shakiness situation.The dust of attachment wooden partition is scraped by self-cleaning core, is attached to the dust of dead angle and core itself slightly touching to bestir oneself and voluntarily fall off under in core and wooden partition.The present invention during the work time voluntarily complete from beginning to end by cleanup action, the driving power for generating self-cleaning is flowed using air-flow, without additionaling power source.Flow-disturbing is also played the role of in the rotation of cleaning core, comes into full contact with the siding of recuperated gas and heat exchanging body, improves heat exchange efficiency.
Description
Technical field
The invention belongs to technical field of heat exchangers, are related to a kind of dust-laden hot exhaust gas recuperation of heat heat exchange with self-cleaning function
Device.
Background technique:
The drying process of material widely appears in the raw material preliminary working stage in the fields such as food, drug and the energy.It is dry
Dry process is exactly that the process of contained humidity in material is taken away with high-temperature hot-air.Hot blast temperature drops to 70 DEG C~80 after drying
℃.Currently, these are directly discharged in air containing the hot exhaust gas with this large amount of moisture and a small amount of dust.This year, with state
The further control that family uses fire coal in various industries, many enterprises are required that changing coal-fired heat source is heat source gas, this is big
Big improves specific gravity shared in heat source workinprocess cost.Production cost can be greatly reduced in the recycling of hot exhaust gas, so
Many enterprises are all in the feasibility for actively inquiring into hot exhaust gas recycling.Dust-containing tail gas is exchanging heat under conditions of high humility, high wind speed
Attachment grit and quick fouling are easy to inside device, especially serious generation is on plate heat exchanger.
Summary of the invention
In order to overcome problems of the prior art, the recuperation of heat of dust-laden hot exhaust gas is realized using plate heat exchanger, is kept away
Exempt from dust accumulation fouling inside plate heat exchanger, prevents blocking inside heat exchanger, improve rate of heat exchange, realize self-cleaning function.
The specific technical solution of the present invention is a kind of dust-laden hot exhaust gas heat recovering heat exchanger with self-cleaning function, packet
The heat exchanging body of rubbing board type cross-flow heat exchange, which includes dusty gas channel and the air duct of interlaced arrangement, dusty gas
Channel and the section of air duct are equal and be square；Self-cleaning core knot is set in the dusty gas channel of heat exchanging body
Structure, the structure include cleaning core, frame body, connection rod set；Wherein, cleaning core is connect by connection rod set with frame body, frame body welding
It is welded on frame body in the upper end of heat exchanging body internal upper part, connection rod set, welding position corresponds to the center in dusty gas channel, even
The lower end of bar group is welded in the center of cleaning core；The connection rod set includes three connecting rods, is connected respectively with flexural pivot between connecting rod；
The cleaning core includes three groups of torsion stiffener plates and core arc siding, and one end of three torsion stiffener plates is welded on one
It rises, node is the center for clearing up core, and the other end is welded on corresponding core arc siding, and three torsion stiffener plates are equal
It is even to be distributed in inside core；It is 120 ° that each core arc siding, which corresponds to angle of circumference, three core arc sidings sequentially company of sealing
The outer wall to form cleaning core is connect, opens up one group of rectangular opening on each core arc siding；Wherein, every two core arc siding
Handover seam connect respectively with dusty gas channel one side, while a core arc siding and dusty gas channel is another
Side is tangent.
Three groups of torsion stiffener plates not only increase core intensity；And blade function is played, in the recuperated gas process of circulation
Peripheral force is generated on it, so that core be driven to rotate in channel.Core arc siding mainly rises in rotary course scrapes wall
With touch use of bestirring oneself.
Further, in the corresponding circumferential hexagonal angle degree of each arc siding, the windup-degree for reversing gusset is 30 °,
The corresponding angle [alpha] of rectangular opening aperture is 90 °.
Further, three connecting rods of connection rod set are isometric, and two end links are parallel to each other vertically, intermediate connecting rod and vertical side
To at greater than 10 ° of angles less than 15 °.
Further, each arc siding opens up rectangular opening from top to bottom, between two holes between be divided into 10~15mm.
Further, the outlet end in heat exchanging body lower part dusty gas channel is equipped with dust discharge or mud discharging device；Air duct
Outlet end connects circulation line, for recycling the net air after heat absorption as warmed-up gas.
Further, the square that dusty gas channel and the section of air duct are 20~50mm of side length.
Channel interior designs and is mounted with self-cleaning core, and the stiffener plate inside core is bent plate component, meets
Tangential force is generated after the choke of wind face, so that entire core be pushed to do spinning campaign inside heat exchanger.The bias on core top
Structure plays limit and core is guided to advance according to rotation route shown in Fig. 3, prevents core and wooden partition in wind speed shakiness situation
Strong collision and stuck problem appearance.The dust of most of attachment wooden partition can be scraped by self-cleaning core at once, be adhered to
In the dust of dead angle and core itself slightly touching to bestir oneself and voluntarily fall off under in core and wooden partition.
The invention has the benefit that the presence of cleaning core makes cleanup action in the course of work voluntarily complete from beginning to end
At using the driving power of air-flow flowing generation self-cleaning, without additionaling power source.Flow-disturbing is also played in the rotation of cleaning core
Effect, comes into full contact with the siding of recuperated gas and heat exchanging body, improves heat exchange efficiency.
Detailed description of the invention
Fig. 1 is heat exchange principle schematic diagram in heat exchanging body.
Fig. 2 heat exchanging body inner core-body arrangement schematic diagram.
Fig. 3 clears up core schematic diagram.
Fig. 4 connection rod set schematic diagram.
Fig. 5 clears up core cross-sectional configuration schematic diagram.
Fig. 6 clears up core working space schematic diagram；(a)~(e) respectively corresponds cleaning core and rotates 120 ° of mistakes by initial position
Cheng Zhong is often separated by 30 ° of state；(f) extreme position that can be actually swept in channel for cleaning core.
In figure: 1-1 dust-laden Hot wet air heating；Dust-laden Hot wet air heating after 1-2 heat exchange；The net cold air of 1-3；It is net after 1-4 heat exchange
Air；Arrow indicates the direction of motion of fluid, and α is the corresponding angle of rectangular opening aperture；
1 cleaning core；2 dusty gas channels；3 air ducts；4 frame bodies；5 connection rod sets；5-1 connecting rod A；5-2 connecting rod B；5-3
Connecting rod C；6 torsion stiffener plates；7 core arc sidings.
Specific embodiment
In conjunction with attached drawing 1-6, a kind of dust-laden hot exhaust gas heat recovering heat exchanger with self-cleaning function, including board-like cross-flow are changed
The heat exchanging body of heat, which includes dusty gas channel 2 and the air duct 3 of interlaced arrangement, dusty gas channel and air
The section in channel is equal and is square；Self-cleaning core, the structure packet are set in the dusty gas channel of heat exchanging body
Include cleaning core, 1, frame body 4, connection rod set 5；Wherein, cleaning core is connect by connection rod set with frame body, and frame body is welded in heat exchanging body
The upper end on top, connection rod set is welded on frame body, and welding position corresponds to the center in dusty gas channel, the lower end of connection rod set
It is welded in the center of cleaning core；The connection rod set includes three connecting rods, is connected respectively with flexural pivot between connecting rod；The cleaning core
Body includes three groups of torsion stiffener plates 6 and core arc siding 7, and one end of three torsion stiffener plates welds together, node
The center of core is as cleared up, the other end is welded on corresponding core arc siding, and three torsion stiffener plates are uniformly distributed
Inside core；It is 120 ° that each core arc siding, which corresponds to angle of circumference, and three core arc sidings sequentially are tightly connected to be formed
The outer wall of core is cleared up, opens up one group of rectangular opening on each core arc siding；Wherein, the handover of every two core arc siding
Seam connects with dusty gas channel one side respectively, while the another side phase of a core arc siding and dusty gas channel
It cuts.
Embodiment 1
Working condition: hot exhaust gas dustiness is 10 grams, humidity 90%, and temperature is 80 DEG C, air quantity 1600m3/h。
By analytical calculation, heat exchanging body shape is the cube of 500mm side length, and heat exchanging body internal channel is 25mm square hole；Clearly
The long 500mm of core is managed, core wall thickness 1mm is cleared up, uniformly opens 5 groups of holes in core axial direction, be divided into 10mm between every group；Connection rod set 3
Connecting rod is all 30mm long, and bar diameter is
Embodiment 2
Working condition: hot exhaust gas dustiness is 5 grams, humidity 90%, and temperature is 90 DEG C, air quantity 3600m3/h。
By analytical calculation, heat exchanging body shape is the cube of 800mm side length, and heat exchanging body internal channel is 40mm square hole；Clearly
The long 800mm of core is managed, core wall thickness 1mm is cleared up, uniformly opens 5 groups of holes on core, be divided into 15mm between every group；3 connecting rods of connection rod set
It is all 40mm long, bar diameter is
Claims (10)
1. a kind of dust-laden hot exhaust gas heat recovering heat exchanger with self-cleaning function, the heat exchanging body including board-like cross-flow heat exchange should
Heat exchanging body includes dusty gas channel and the air duct of interlaced arrangement, which is characterized in that dusty gas channel and air duct
Section it is equal and be square；Self-cleaning core is set in the dusty gas channel of heat exchanging body, which includes clear
Manage core, frame body, connection rod set；Wherein, cleaning core is connect by connection rod set with frame body, and frame body is welded on heat exchanging body internal upper part,
The upper end of connection rod set is welded on frame body, and welding position corresponds to the center in dusty gas channel, the lower end welding of connection rod set
In the center of cleaning core；The connection rod set includes three connecting rods, is connected respectively with flexural pivot between connecting rod；The cleaning core packet
Three groups of torsion stiffener plates and core arc siding are included, one end of three torsion stiffener plates welds together, and node is as clear
The center of core is managed, the other end is welded on corresponding core arc siding, and three torsion stiffener plates are uniformly distributed in core
It is internal；It is 120 ° that each core arc siding, which corresponds to angle of circumference, and three core arc sidings are sequentially tightly connected formation cleaning core
The outer wall of body opens up one group of rectangular opening on each core arc siding；Wherein, difference is stitched in the handover of every two core arc siding
Connect with dusty gas channel one side, while a core arc siding and the another side in dusty gas channel are tangent.
2. a kind of dust-laden hot exhaust gas heat recovering heat exchanger with self-cleaning function according to claim 1, feature exist
In in the corresponding circumferential hexagonal angle degree of each arc siding, the windup-degree for reversing stiffener plate is 30 °, rectangular opening aperture
Corresponding angle [alpha] is 90 °.
3. a kind of dust-laden hot exhaust gas heat recovering heat exchanger with self-cleaning function according to claim 1 or 2, feature
It is, three connecting rods of connection rod set are isometric, and two end links are parallel to each other vertically, and intermediate connecting rod is in vertical direction with greater than 10 °
Angle less than 15 °.
4. a kind of dust-laden hot exhaust gas heat recovering heat exchanger with self-cleaning function according to claim 1 or 2, feature
Be, each arc siding opens up rectangular opening from top to bottom, between two holes between be divided into 10~15mm.
5. a kind of dust-laden hot exhaust gas heat recovering heat exchanger with self-cleaning function according to claim 3, feature exist
Open up rectangular opening from top to bottom in, each arc siding, between two holes between be divided into 10~15mm.
6. a kind of dust-laden hot exhaust gas heat recovering heat exchanger with self-cleaning function described according to claim 1 or 2 or 5,
It is characterized in that, the outlet end in heat exchanging body lower part dusty gas channel is equipped with dust discharge or mud discharging device；The outlet end of air duct connects
Circulation line is connect, for recycling net air after heat exchange as warmed-up gas.
7. a kind of dust-laden hot exhaust gas heat recovering heat exchanger with self-cleaning function according to claim 3, feature exist
In the outlet end in heat exchanging body lower part dusty gas channel is equipped with dust discharge or mud discharging device；The outlet end of air duct connects circulation
Pipeline, for being recycled net air after heat exchange as warmed-up gas.
8. a kind of dust-laden hot exhaust gas heat recovering heat exchanger with self-cleaning function according to claim 4, feature exist
In the outlet end in heat exchanging body lower part dusty gas channel is equipped with dust discharge or mud discharging device；The outlet end of air duct connects circulation
Pipeline, for being recycled net air after heat exchange as warmed-up gas.
9. a kind of dust-laden hot exhaust gas recuperation of heat heat exchange with self-cleaning function described according to claim 1 or 2 or 5 or 7 or 8
Device, which is characterized in that the square that dusty gas channel and the section of air duct are 20~50mm of side length.
10. a kind of dust-laden hot exhaust gas heat recovering heat exchanger with self-cleaning function according to claim 3, feature exist
In the section of dusty gas channel and air duct is the square of 20~50mm of side length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710470250.5A CN107255424B (en) | 2017-06-20 | 2017-06-20 | A kind of dust-laden hot exhaust gas heat recovering heat exchanger with self-cleaning function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710470250.5A CN107255424B (en) | 2017-06-20 | 2017-06-20 | A kind of dust-laden hot exhaust gas heat recovering heat exchanger with self-cleaning function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107255424A CN107255424A (en) | 2017-10-17 |
| CN107255424B true CN107255424B (en) | 2019-01-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710470250.5A Expired - Fee Related CN107255424B (en) | 2017-06-20 | 2017-06-20 | A kind of dust-laden hot exhaust gas heat recovering heat exchanger with self-cleaning function |
Country Status (1)
| Country | Link |
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| CN (1) | CN107255424B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113091337B (en) * | 2021-05-26 | 2022-07-08 | 青海中煤地质工程有限责任公司 | Geothermal conversion equipment based on geothermal utilization |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001014038A1 (en) * | 1999-08-22 | 2001-03-01 | Semyon Etlender | Method and device for continuous production of ice-solution suspension |
| CN101762203A (en) * | 2008-12-23 | 2010-06-30 | 北京化工大学 | Inner boundary layer cutting disturbing radial mixed flow device of heat exchange pipe |
| CN201589575U (en) * | 2009-11-23 | 2010-09-22 | 绍兴永利环保科技有限公司 | Self-cleaning burn-proof device of heat exchanger |
| CN103673746A (en) * | 2013-12-21 | 2014-03-26 | 北京化工大学 | Inner turbulent flow dirt cleaning rotor of heat exchanging pipe |
| CN204301441U (en) * | 2014-11-13 | 2015-04-29 | 江苏志远节能炉业设备有限公司 | There is the environment-friendly type rotary drying stove of self-cleaning function |
-
2017
- 2017-06-20 CN CN201710470250.5A patent/CN107255424B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001014038A1 (en) * | 1999-08-22 | 2001-03-01 | Semyon Etlender | Method and device for continuous production of ice-solution suspension |
| CN101762203A (en) * | 2008-12-23 | 2010-06-30 | 北京化工大学 | Inner boundary layer cutting disturbing radial mixed flow device of heat exchange pipe |
| CN201589575U (en) * | 2009-11-23 | 2010-09-22 | 绍兴永利环保科技有限公司 | Self-cleaning burn-proof device of heat exchanger |
| CN103673746A (en) * | 2013-12-21 | 2014-03-26 | 北京化工大学 | Inner turbulent flow dirt cleaning rotor of heat exchanging pipe |
| CN204301441U (en) * | 2014-11-13 | 2015-04-29 | 江苏志远节能炉业设备有限公司 | There is the environment-friendly type rotary drying stove of self-cleaning function |
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| Publication number | Publication date |
|---|---|
| CN107255424A (en) | 2017-10-17 |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20190122 |