CN2295949Y - Honeycomb heat exchanging fan - Google Patents
Honeycomb heat exchanging fan Download PDFInfo
- Publication number
- CN2295949Y CN2295949Y CN 96241312 CN96241312U CN2295949Y CN 2295949 Y CN2295949 Y CN 2295949Y CN 96241312 CN96241312 CN 96241312 CN 96241312 U CN96241312 U CN 96241312U CN 2295949 Y CN2295949 Y CN 2295949Y
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- CN
- China
- Prior art keywords
- fan
- impeller
- waste gas
- hot
- stream splitter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model relates to a honeycomb heat exchanging fan. A heat exchanger is composed of a stream splitter and a tube bundle box. The stream splitter is a cone, and the stream splitter is divided into a plurality of big sector lattices by a partition plate in the radial direction. A clockwise guiding sheet and an anti-clockwise guiding sheet are arranged in turn in contiguous sector lattices. The stream splitter is installed between a hot exhaust gas inlet and the impeller, and the stream splitter is installed between a cold air inlet and the impeller. A plurality of rows of pipes are arranged in the tube bundle box, the pipes are bent into U shape, the pipes are form a round back-transfer arrangement around a mainshaft, two end port of the pipes are installed on the corresponding sector lattices, and the integral tube bundle box forms like a comb. The utility model has the advantages of high thermal efficiency, compact structure, smaller volume, material saving, etc.
Description
The utility model relates to air preheater (heat exchanger), refers in particular to a kind of cellular heat-exchange fan.
Boiler of power plant, Industrial Boiler in use, need in the combustion chamber of boiler, be blown into air-breathing with air blast, but the temperature in the boiler is very high, if air directly injected furnace temperature is descended, therefore needing to use heat-exchange fan, heat-exchange fan is that the hot waste gas that utilizes boiler to discharge comes the heats cold air, the air after the preheating is blown in the stove again.
At present, commercially available heat-exchange fan, the main tube bank case that uses straight pipe type, the instant heating waste vapour flows in interior pipe, air flows in outer tube, and the various flows inside and outside pipe is to carrying out the tube wall heat exchange by hot waste vapour and air like this, and the heat-exchange fan of this straight pipe type is bulky, the tubing consumption is many, and heat exchange efficiency is low.
The purpose of this utility model is to provide a kind of cellular heat-exchange fan, and its tube bank case integral body is honeycomb, each tube row array structure compactness, and volume is little, heat exchange efficiency is high.
The purpose of this utility model is achieved in that
A kind of cellular heat-exchange fan, comprise main shaft, impeller, casing, hot waste gas air inlet, hot waste gas outlet, cold air air inlet, hot-air outlet and heat exchanger, it is characterized in that: described heat exchanger is made up of stream splitter and tube bank case, wherein:
Stream splitter is a cone, radially be divided into several big fan-shaped lattice with dividing plate, one arcuate guide sheet is installed in each fan-shaped lattice, and prerotation vane has two kinds of left-handed and dextrorotation, in the adjacent fan-shaped lattice, left-handed and prerotation vane dextrorotation is arranged alternately, make the gas channel that forms different directions in the fan-shaped lattice, between hot waste gas air inlet and impeller, a stream splitter is housed respectively between cold air air inlet and the impeller, described two stream splitters are coaxial with main shaft, and described impeller is the reversible impeller;
Be provided with the plurality of rows pipe in the tube bank case, its quantity is identical with the quantity of above-mentioned fan-shaped lattice, each tube bending becomes U-shaped, described each array of pipes is arranged around the rounded revolution of main shaft, the two-port of each pipe is installed in respectively in two above-mentioned stream splitters on the corresponding fan-shaped lattice, make tube bank case integral body be honeycomb, and make the middle cavity that forms of tube bank case, described pipe is made with the material of good thermal conduction;
Cavity in the middle of the tube bank case is an induction chamber, above-mentioned reversible impeller is installed on the main shaft in the induction chamber, one dividing plate is relative with the mid-game of this reversible impeller, induction chamber is divided into left and right two Room, chamber, a left side is used to compile hot-air, the right ventricle is used to compile hot waste gas, and left chamber has pipeline to communicate with the hot-air outlet, and the right ventricle has pipeline to communicate with the hot waste gas outlet.
The purpose of this utility model can also realize by following measure:
Fan-shaped lattice in the described stream splitter are 12, and the pipe in the described tube bank case is 12 rows.
Be provided with cutoff board in described each pipe.
Described casing is the opposite opened shell.
All be provided with the stream pressure autobalance wing in described hot waste gas outlet and the hot-air outlet.
The utility model compared with prior art has following good effect:
1, each pipe takes the shape of the letter U, and gas flows in annular channel like this, can form turbulent flow, experiment shows that turbulent flow can make heat transfer coefficient improve half times to 2 times, and flows in straight tube, can not form turbulent flow, therefore, cellular heat-exchange fan heat transfer efficiency height of the present utility model.
2, compact conformation is saved tubing, the tube bank case of cellular layout, and volume is little, and heat transfer area is big, compares with the tube bank case of straight pipe type, has under the identical heat transfer efficiency situation, than the steel saved about 1/3 of straight pipe type.
Below in conjunction with the drawings and specific embodiments the utility model is further described:
Fig. 1 is a structure cutaway view of the present utility model.
Fig. 2 is the right view of Fig. 1.
Fig. 3 is the cutaway view of Fig. 2.
Fig. 4 is the structure principle chart of a stream splitter among Fig. 1.
Fig. 5 is along the cutaway view of I-I line among Fig. 4.
Fig. 6 is along the cutaway view of II-II line among Fig. 4.
Fig. 7 is the structure principle chart of another stream splitter among Fig. 1.
Fig. 8 is along the cutaway view of III-III line among Fig. 7.
Fig. 9 is along the cutaway view of IV-IV line among Fig. 7.
Figure 10 and Figure 11 are fundamental diagrams.
Referring to Fig. 1, Fig. 2, cellular heat-exchange fan of the present utility model comprises main shaft 1, impeller 2, dividing plate 3, tube bank case 4, stream splitter 5,6, hot waste gas air inlet 7, cold air air inlet 8, hot waste gas outlet 9, hot-air outlet 10, hot-air induction chamber 11, hot waste gas induction chamber 12, referring to Fig. 3, stream splitter 6 is a cone, radially be divided into several for example 12 big fan-shaped lattice with dividing plate, impeller 2 is the reversible impeller, be installed on the main shaft 1, adopt the reversible impeller, purpose is when reversible impeller 2 rotates, one side inspiration cold air, another side inspiration hot waste gas.Between hot waste gas air inlet 7 and impeller 2, stream splitter 5 is installed, between cold air air inlet 8 and impeller 2, stream splitter 6 is installed, 12 array of pipes that are provided with in the tube bank case 4 are arranged around impeller 2 revolutions, each pipe is a U-shaped, the chamber of the hollow of tube bank case forms induction chamber, dividing plate 3 aligns with the mid-game 13 of reversible impeller 2, and two Room about the mid-game 13 of dividing plate 3 and reversible impeller is separated into induction chamber, left chamber are that hot-air induction chamber 11, right ventricle are hot waste gas induction chamber 12.12 array of pipes of tube bank in the case 4, the two-port of each pipe be installed in respectively corresponding fan-shaped lattice in two stream splitters 5,6 on.See also Fig. 4, Fig. 4 is the structure principle chart of stream splitter 5 among Fig. 1.The fan-shaped lattice representative that indicates M interlinks with the hot waste gas pipeline, indicate and in the fan-shaped lattice of M prerotation vane 15 is housed and sees Fig. 5, the A face and the hot waste gas pipeline of fan-shaped lattice join, B face and hot-air induction chamber 11 join, C face and hot waste gas air inlet 7 join, as seen from the figure, at this moment be communicated with between A, the C face, seal between A, the B face; Fig. 7 is the structure principle chart of stream splitter 6 among Fig. 1, indicate in the fan-shaped lattice of M prerotation vane 16 is housed, see Fig. 8, the A face and the hot waste gas pipeline of fan-shaped lattice join, B face and hot waste gas induction chamber 12 join, and C face and cold air air inlet 8 join, visible A at this moment, be communicated with between the B face, A, seal between the C face, when rotating under the drive of main shaft 1 at motor, reversible impeller 2 rotates, and sucks hot waste gas, therefore arrow indicates among the runner of hot waste gas such as Figure 10, hot waste gas enters from hot waste gas air inlet 7, advances by the path shown in the arrow among Figure 10, and hot waste gas carries out heat exchange with cold air in pipeline, at last, hot waste gas is discharged from hot waste gas outlet 9.In like manner, please consult Fig. 4 again, Fig. 4 is the structure principle chart of stream splitter 5, and the fan-shaped lattice representative that indicates N is connected with air duct.Indicate and in the fan-shaped lattice of N prerotation vane 17 is housed and sees Fig. 6, fan-shaped lattice A face and air duct join, and B face and hot-air induction chamber 11 join, and C face and hot waste gas air inlet 7 join, and as seen, at this moment are communicated with between A, the B face, seal between A, the C face.Please consult Fig. 7 again, Fig. 7 is the schematic diagram of stream splitter 6, indicate and in the fan-shaped lattice of N prerotation vane 18 is housed and sees Fig. 9, the A face and the air duct of fan-shaped lattice join, B face and hot waste gas induction chamber 12 join, C face and cold air air inlet 8 join, as seen from the figure, A at this moment, be communicated with A between the C face, seal between the B face, at this moment arrow indicates among the runner of air such as Figure 11, cold air enters from cold air air inlet 8, advances by the path shown in the arrow among Figure 11, and cold air is heated as hot-air through heat exchange in pipeline, at last, hot-air is discharged from hot-air outlet 10.Please consult Fig. 3 again, indicate the pipeline representative hot waste gas pipeline of M, indicate the pipeline representative cold-air duct of N, as seen from the figure, air duct and exhaust piping are alternately to be circumgyration to arrange, therefore, when rotating under the drive of main shaft 1 at motor, reversible impeller 2 rotates, and sucks cold air and hot waste gas, thereby the reverse flow in pipeline of cold air and hot waste gas realizes the heat exchange between tube wall.
In preferred embodiment, be provided with cutoff board 14 in described each pipeline, purpose is that pipe is divided into the multithread road, when heat-exchange fan turns round, can reduce to take place the possibility of suck-back or gas leakage like this.
Described casing 19 is seen Fig. 2 for splitting the shell shell, and casing 19 is split up and down, and described hot waste gas outlet 9 and hot-air outlet all are provided with the stream pressure autobalance wing 20 for 10 li and see Fig. 1, and the described pressure autobalance wing is a prior art.
Claims (5)
1, a kind of cellular heat-exchange fan, comprise main shaft, impeller, casing, hot waste gas air inlet, hot waste gas outlet, cold air air inlet, hot-air outlet and heat exchanger, it is characterized in that: described heat exchanger is made up of stream splitter and tube bank case, wherein:
Stream splitter is a cone, radially be divided into several big fan-shaped lattice with dividing plate, one arcuate guide sheet is installed in each fan-shaped lattice, and prerotation vane has two kinds of left-handed and dextrorotation, in the adjacent fan-shaped lattice, left-handed and prerotation vane dextrorotation is arranged alternately, make the gas channel that forms different directions in the fan-shaped lattice, between hot waste gas air inlet and impeller, a stream splitter is housed respectively between cold air air inlet and the impeller, described two stream splitters are coaxial with main shaft, and described impeller is the reversible impeller;
Be provided with the plurality of rows pipe in the tube bank case, its quantity is identical with the quantity of above-mentioned fan-shaped lattice, each tube bending becomes U-shaped, described each array of pipes is arranged around the rounded revolution of main shaft, the two-port of each pipe is installed in respectively in two above-mentioned stream splitters on the corresponding fan-shaped lattice, make tube bank case integral body be honeycomb, and make the middle cavity that forms of tube bank case, described pipe is made with the material of good thermal conduction;
Cavity in the middle of the tube bank case is an induction chamber, above-mentioned reversible impeller is installed on the main shaft in the induction chamber, one dividing plate is relative with the mid-game of this reversible impeller, induction chamber is divided into left and right two Room, chamber, a left side is used to compile hot-air, the right ventricle is used to compile hot waste gas, and left chamber has pipeline to communicate with the hot-air outlet, and the right ventricle has pipeline to communicate with the hot waste gas outlet.
2, cellular heat-exchange fan according to claim 1 is characterized in that: the fan-shaped lattice in the described stream splitter are 12, and the pipe in the described tube bank case is 12 rows.
3, cellular heat-exchange fan according to claim 1 is characterized in that: be provided with cutoff board in described each pipe.
4, cellular heat-exchange fan according to claim 1 is characterized in that: described casing is the opposite opened shell.
5, cellular heat-exchange fan according to claim 1 is characterized in that: all be provided with the stream pressure autobalance wing in described hot waste gas outlet and the hot-air outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96241312 CN2295949Y (en) | 1996-10-25 | 1996-10-25 | Honeycomb heat exchanging fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96241312 CN2295949Y (en) | 1996-10-25 | 1996-10-25 | Honeycomb heat exchanging fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2295949Y true CN2295949Y (en) | 1998-10-28 |
Family
ID=33915742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96241312 Expired - Fee Related CN2295949Y (en) | 1996-10-25 | 1996-10-25 | Honeycomb heat exchanging fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2295949Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100374791C (en) * | 2002-12-06 | 2008-03-12 | Lg电子株式会社 | Heat exchanging system of ventilating equipment |
-
1996
- 1996-10-25 CN CN 96241312 patent/CN2295949Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100374791C (en) * | 2002-12-06 | 2008-03-12 | Lg电子株式会社 | Heat exchanging system of ventilating equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |