CN109404306B - Centrifugal hot air circulating fan capable of cooling inside kiln - Google Patents
Centrifugal hot air circulating fan capable of cooling inside kiln Download PDFInfo
- Publication number
- CN109404306B CN109404306B CN201811629893.0A CN201811629893A CN109404306B CN 109404306 B CN109404306 B CN 109404306B CN 201811629893 A CN201811629893 A CN 201811629893A CN 109404306 B CN109404306 B CN 109404306B
- Authority
- CN
- China
- Prior art keywords
- centrifugal impeller
- motor
- air inlet
- air
- connecting plate
- 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.)
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Links
- 238000001816 cooling Methods 0.000 title claims abstract description 10
- 238000009413 insulation Methods 0.000 claims description 12
- 239000012774 insulation material Substances 0.000 claims description 6
- 238000007789 sealing Methods 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/08—Centrifugal pumps
- F04D17/16—Centrifugal pumps for displacing without appreciable compression
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/4226—Fan casings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
- F04D29/5853—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps heat insulation or conduction
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Furnace Details (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to a centrifugal hot air circulating fan capable of cooling the interior of a kiln, which comprises a motor and a motor shaft, wherein a front centrifugal impeller and a rear centrifugal impeller are rotatably sleeved on the motor shaft, a connecting plate is sleeved on the motor shaft between the rear centrifugal impeller and the motor, an air inlet of the front centrifugal impeller is positioned at one side far away from the motor, an air inlet of the rear centrifugal impeller is positioned at one side facing the connecting plate, a plurality of air holes corresponding to the air inlet of the rear centrifugal impeller are formed in the connecting plate, and a cover plate capable of sealing the air holes is connected to one side of the connecting plate positioned on the motor. Through set up preceding centrifugal impeller and back centrifugal impeller on the motor shaft, offer back centrifugal impeller's air intake towards the connecting plate, set up the wind hole on the connecting plate simultaneously and can seal the apron of wind hole, like this, when the inside cooling of kiln is needed, can open the wind hole, make kiln outside cold wind be inhaled inside the kiln by back centrifugal impeller through the wind hole to reduce kiln inside temperature.
Description
Technical Field
The invention belongs to the technical field of fans, and particularly relates to a centrifugal hot air circulating fan capable of cooling the interior of a kiln.
Background
The centrifugal hot air circulating fan installed on the kiln is only provided with the function of circulating hot air in the kiln, when the temperature in the kiln is too high, a cooling fan is usually arranged on the kiln when the temperature in the kiln is required to be reduced, so that a pipeline is required to be increased, and the purchase cost and the maintenance cost of the cooling fan are increased.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: the centrifugal hot air circulating fan can cool the interior of the kiln, so that the kiln configuration requirement and the production and maintenance cost are reduced.
In order to solve the technical problems, the invention adopts the following technical scheme: can carry out refrigerated centrifugal hot air circulation fan to kiln inside, including motor and motor shaft, rotation has cup jointed a preceding centrifugal impeller and a back centrifugal impeller on the motor shaft, and back centrifugal impeller is located between preceding centrifugal impeller and the motor, has cup jointed a connecting plate on the motor shaft between back centrifugal impeller and the motor, preceding centrifugal impeller's air intake is located one side of keeping away from the motor, and back centrifugal impeller's air intake is located one side towards the connecting plate, a plurality of wind hole corresponding with back centrifugal impeller's air intake has been seted up on the connecting plate, and the connecting plate is located motor one side and is connected with the apron that can seal the wind hole.
As a preferable scheme, the front centrifugal impeller and the rear centrifugal impeller are mutually attached, and the end plate of the front centrifugal impeller, which faces the motor, and the end plate of the rear centrifugal impeller, which is far away from the motor, are the same end plate.
As a preferable scheme, the cover plate is annular, the wind holes are fan-shaped and axially uniformly distributed around the motor shaft, the included angle between two adjacent wind holes is larger than the included angle between two straight edges of the wind holes, fan-shaped through holes corresponding to the wind holes one by one are formed in the cover plate, and the wind holes can be opened or closed by rotating the cover plate or the opening size of the wind holes can be adjusted.
As a preferable scheme, a side face of one side of the connecting plate, which faces the rear centrifugal impeller, is connected with an insulation box body sleeved on a motor shaft, insulation materials are filled in the insulation box body, one side of the insulation box body, which faces away from the connecting plate, is opposite to the rear centrifugal impeller, a cold air inlet corresponding to an air inlet of the rear centrifugal impeller is formed in the surface of the insulation box body, which faces the rear centrifugal impeller, and a cold air channel which is communicated with the cold air inlet and each air hole is formed in the insulation material.
As a preferable scheme, the cold air inlet is slightly smaller than the air inlet of the rear centrifugal impeller, a guide pipe extending towards the air inlet of the rear centrifugal impeller is connected to the cold air inlet, and the guide pipe is inserted into the air inlet of the rear centrifugal impeller.
As a preferred solution, a gap exists between the duct and the air inlet of the rear centrifugal impeller.
The beneficial effects of the invention are as follows: the air inlet of the rear centrifugal impeller is formed towards the connecting plate through the front centrifugal impeller and the rear centrifugal impeller arranged on the motor shaft, and meanwhile, the air hole and the cover plate capable of sealing the air hole are arranged on the connecting plate, so that when the interior of the kiln is required to be cooled, the cover plate can be removed, the air hole is opened, cold air outside the kiln is sucked into the interior of the kiln through the air hole by the rear centrifugal impeller, and heat exchange is carried out with high-temperature gas inside the kiln to reduce the temperature inside the kiln.
Drawings
The invention is described in further detail below with reference to the attached drawing figures, wherein:
FIG. 1 is a schematic diagram of the structure of the present invention;
fig. 2 is a top view of fig. 1.
In fig. 1 and 2: 1. the heat-insulating box comprises a motor, a motor shaft, a motor 3, a front centrifugal impeller, a rear centrifugal impeller, a connecting plate, a 6, an air inlet, a 7, an air hole, a 8, a cover plate, a 9, an end plate, a 10, an insulating box body, a 11, an insulating material, a 12, a cold air inlet, a 13, a cold air channel, a 14, a conduit, a 15, a gap, a 16, a through hole, a 17 and a furnace wall.
Detailed Description
Specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.
As shown in fig. 1 and 2, a centrifugal hot air circulating fan capable of cooling the interior of a kiln comprises a motor 1 and a motor shaft 2, and is characterized in that a front centrifugal impeller 3 and a rear centrifugal impeller 4 are rotatably sleeved on the motor shaft 2, the rear centrifugal impeller 4 is positioned between the front centrifugal impeller 3 and the motor 1, a connecting plate 5 is sleeved on the motor shaft 2 between the rear centrifugal impeller 4 and the motor 1, an air inlet 6 of the front centrifugal impeller 3 is positioned at one side far away from the motor 1, an air inlet 6 of the rear centrifugal impeller 4 is positioned at one side facing the connecting plate 5, a plurality of air holes 7 corresponding to the air inlets 6 of the rear centrifugal impeller 4 are formed in the connecting plate 5, and a cover plate 8 capable of sealing the air holes 7 is connected to one side of the motor 1.
The front centrifugal impeller 3 and the rear centrifugal impeller 4 are arranged on the motor shaft 2, the air inlet 6 of the rear centrifugal impeller 4 is formed towards the connecting plate 5, and meanwhile, the air hole 7 and the cover plate 8 capable of sealing the air hole 7 are arranged on the connecting plate 5, so that when the interior of the kiln is required to be cooled, the air hole 7 can be opened, cold air outside the kiln is sucked into the interior of the kiln through the air hole 7 by the rear centrifugal impeller 4, and heat exchange is carried out with high-temperature gas inside the kiln to reduce the temperature inside the kiln.
The front centrifugal impeller 3 and the rear centrifugal impeller 4 are mutually attached, the end plate 9 of the front centrifugal impeller 3 facing the motor 1 and the end plate 9 of the rear centrifugal impeller 4 far away from the motor 1 are the same end plate 9, so that the total weight of the front centrifugal impeller 3 and the rear centrifugal impeller 4 is reduced, the load of the motor 1 is reduced, electric energy is saved, and the rotation stability of the front centrifugal impeller 3 and the rear centrifugal impeller is improved.
The cover plate 8 is annular, the wind holes 7 are fan-shaped and are axially and uniformly distributed around the motor shaft 2, the included angle between every two adjacent wind holes 7 is larger than the included angle between two straight edges of the wind holes 7, fan-shaped through holes 16 corresponding to the wind holes 7 one by one are formed in the cover plate 8, the positions of the through holes 16 can be moved by rotating the cover plate 8, the through holes 16 are opposite to the wind holes 7 or are partially opposite to or completely staggered, accordingly, the wind holes 7 are opened or closed, the operation is convenient, and the air inlet quantity of cold wind can be adjusted according to actual needs.
The side face of one side of the connecting plate 5, which faces the rear centrifugal impeller 4, is connected with an insulation box body 10 sleeved on the motor shaft 2, insulation materials 11 are filled in the insulation box body 10, one side of the insulation box body 10, which faces away from the connecting plate 5, is opposite to the rear centrifugal impeller 4, a cold air inlet 12 corresponding to an air inlet 6 of the rear centrifugal impeller 4 is formed in the face of the insulation box body 10, which faces the rear centrifugal impeller 4, and a cold air channel 13 for communicating the cold air inlet 12 with each air hole 7 is formed in the insulation material 11.
The heat preservation box 10 can isolate the high temperature inside the kiln, and avoid the motor 1 from being damaged by the high temperature.
The cold air inlet 12 is slightly smaller than the air inlet 6 of the rear centrifugal impeller 4, the cold air inlet 12 is connected with a guide pipe 14 extending towards the air inlet 6 of the rear centrifugal impeller 4, and the guide pipe 14 is inserted into the air inlet 6 of the rear centrifugal impeller 4, so that when the rear centrifugal impeller 4 rotates, negative pressure generated by the air inlet 6 is directly positioned in the guide pipe 14, and external cold air is guided to enter the rear centrifugal impeller 4.
A gap 15 is formed between the guide pipe 14 and the air inlet 6 of the rear centrifugal impeller 4, and when the cover plate 8 seals the air hole 7, hot air in the kiln can enter the rear centrifugal impeller 4 through the gap 15 to circulate.
The working process of the invention is as follows: as shown in figures 1 and 2, the centrifugal hot air circulating fan is arranged on a furnace wall 17 through a connecting plate 5, a motor 1 is positioned outside a furnace, when the internal temperature of the furnace is in a normal range, a cover plate 8 seals all air holes 7, the motor 1 drives a motor shaft 2 to rotate, the motor shaft 2 drives a front centrifugal fan 3 and a rear centrifugal fan 4 to rotate, the front centrifugal fan 3 and the rear centrifugal fan 4 suck hot air from respective air inlets 6 and discharge the hot air from air outlets on the side surfaces, so that
The hot air in the kiln forms circulation, wherein the hot air enters the rear centrifugal fan 4 from a gap 15 between the air inlet 6 of the rear centrifugal fan 4 and the guide pipe 14.
When the temperature inside the kiln is too high, the cover plate 8 is rotated, so that the through holes 16 on the cover plate 8 are partially opposite to or completely opposite to the air holes 7, because negative pressure is formed at the air inlet 6 of the rear centrifugal fan 4 when the rear centrifugal fan 4 rotates, and the guide pipe 14 is inserted into the air inlet 6 of the rear centrifugal fan 4, cold air outside the kiln is directly sucked into the rear centrifugal fan 4 through the cold air channel 13, the cold air inlet and the guide pipe 14, is directly discharged into the kiln from the air outlet on the side face of the rear centrifugal fan 4 through the inner channel of the rear centrifugal fan 4, exchanges heat with high-temperature air inside the kiln, and reduces the temperature inside the kiln.
When the temperature in the kiln is reduced to the normal range, the cover plate 8 is rotated again to close the air hole 7, and the centrifugal fan 4 recovers the hot air circulation function.
The above embodiments are merely illustrative of the principles and effects of the present invention, and some of the applied embodiments, and are not intended to limit the invention; it should be noted that modifications and improvements can be made by those skilled in the art without departing from the inventive concept, and these are all within the scope of the present invention.
Claims (3)
1. The utility model provides a can carry out refrigerated centrifugal hot air circulation fan to kiln inside, includes motor (1) and motor shaft (2), its characterized in that, rotating on motor shaft (2) has cup jointed a preceding centrifugal impeller (3) and a back centrifugal impeller (4), and back centrifugal impeller (4) are located between preceding centrifugal impeller (3) and motor (1), cup jointed a connecting plate (5) on motor shaft (2) between back centrifugal impeller (4) and motor (1), air intake (6) of preceding centrifugal impeller (3) are located the one side that keeps away from motor (1), and air intake (6) of back centrifugal impeller (4) are located the one side towards connecting plate (5), offer a plurality of wind hole (7) corresponding with air intake (6) of back centrifugal impeller (4) on connecting plate (5), connecting plate (5) are located motor (1) one side and are connected with apron (8) that can seal wind hole (7);
the side face of one side of the connecting plate (5) facing the rear centrifugal impeller (4) is connected with an insulation box body (10) sleeved on the motor shaft (2), insulation materials (11) are filled in the insulation box body (10), one side of the insulation box body (10) facing away from the connecting plate (5) is opposite to the rear centrifugal impeller (4), a cold air inlet (12) corresponding to an air inlet (6) of the rear centrifugal impeller (4) is formed in the face of the insulation box body (10) facing the rear centrifugal impeller (4), and a cold air channel (13) for communicating the cold air inlet (12) with each air hole (7) is formed in the insulation material (11);
the cold air inlet (12) is slightly smaller than the air inlet (6) of the rear centrifugal impeller (4), a guide pipe (14) extending towards the air inlet (6) of the rear centrifugal impeller (4) is connected to the cold air inlet (12), and the guide pipe (14) is inserted into the air inlet (6) of the rear centrifugal impeller (4);
a gap (15) is formed between the guide pipe (14) and the air inlet (6) of the rear centrifugal impeller (4).
2. The centrifugal hot air circulating fan capable of cooling the interior of the kiln according to claim 1, wherein the front centrifugal impeller (3) and the rear centrifugal impeller (4) are mutually attached, and an end plate (9) on the side of the front centrifugal impeller (3) facing the motor (1) and an end plate (9) on the side of the rear centrifugal impeller (4) away from the motor (1) are the same end plate (9).
3. The centrifugal hot air circulating fan capable of cooling the interior of the kiln according to claim 1, wherein the cover plate (8) is annular, the air holes (7) are fan-shaped and axially uniformly distributed around the motor shaft (2), the included angle between every two adjacent air holes (7) is larger than the included angle between two straight edges of the air holes (7), fan-shaped through holes (16) which are in one-to-one correspondence with the air holes (7) are formed in the cover plate (8), and the air holes (7) can be opened or closed by rotating the cover plate (8) or the opening size of the air holes (7) can be adjusted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811629893.0A CN109404306B (en) | 2018-12-29 | 2018-12-29 | Centrifugal hot air circulating fan capable of cooling inside kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811629893.0A CN109404306B (en) | 2018-12-29 | 2018-12-29 | Centrifugal hot air circulating fan capable of cooling inside kiln |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109404306A CN109404306A (en) | 2019-03-01 |
| CN109404306B true CN109404306B (en) | 2024-04-12 |
Family
ID=65462563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811629893.0A Active CN109404306B (en) | 2018-12-29 | 2018-12-29 | Centrifugal hot air circulating fan capable of cooling inside kiln |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109404306B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114320976A (en) * | 2022-03-09 | 2022-04-12 | 南京深度***工程有限公司 | Centrifugal fan with flow and temperature regulation |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865155A (en) * | 2010-03-25 | 2010-10-20 | 南通大通宝富风机有限公司 | Heat resistant centrifugal fan |
| CN201762405U (en) * | 2010-06-28 | 2011-03-16 | 莱芜钢铁股份有限公司 | High-efficient annealing furnace capable of preventing cold-rolled strip steel from adhering |
| CN202612153U (en) * | 2012-06-15 | 2012-12-19 | 楚天科技股份有限公司 | Centrifugal fan for high-temperature environment and oven with same |
| JP2015001176A (en) * | 2013-06-14 | 2015-01-05 | アネスト岩田株式会社 | Scroll type fluid machine |
| CN104314847A (en) * | 2014-10-15 | 2015-01-28 | 洛阳北玻台信风机技术有限责任公司 | High-speed high-temperature fan for kiln furnace heating circulation |
| CN107524620A (en) * | 2017-09-25 | 2017-12-29 | 张家港保税区创典炉窑通风设备有限公司 | A kind of centrifugal hot air circulation blower |
| CN207202696U (en) * | 2017-03-30 | 2018-04-10 | 九阳股份有限公司 | A kind of air fryer of good heat dissipation |
| CN209398593U (en) * | 2018-12-29 | 2019-09-17 | 张家港保税区创典炉窑通风设备有限公司 | Cooling centrifugal hot air circulation blower can be carried out to stove inside |
-
2018
- 2018-12-29 CN CN201811629893.0A patent/CN109404306B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865155A (en) * | 2010-03-25 | 2010-10-20 | 南通大通宝富风机有限公司 | Heat resistant centrifugal fan |
| CN201762405U (en) * | 2010-06-28 | 2011-03-16 | 莱芜钢铁股份有限公司 | High-efficient annealing furnace capable of preventing cold-rolled strip steel from adhering |
| CN202612153U (en) * | 2012-06-15 | 2012-12-19 | 楚天科技股份有限公司 | Centrifugal fan for high-temperature environment and oven with same |
| JP2015001176A (en) * | 2013-06-14 | 2015-01-05 | アネスト岩田株式会社 | Scroll type fluid machine |
| CN104314847A (en) * | 2014-10-15 | 2015-01-28 | 洛阳北玻台信风机技术有限责任公司 | High-speed high-temperature fan for kiln furnace heating circulation |
| CN207202696U (en) * | 2017-03-30 | 2018-04-10 | 九阳股份有限公司 | A kind of air fryer of good heat dissipation |
| CN107524620A (en) * | 2017-09-25 | 2017-12-29 | 张家港保税区创典炉窑通风设备有限公司 | A kind of centrifugal hot air circulation blower |
| CN209398593U (en) * | 2018-12-29 | 2019-09-17 | 张家港保税区创典炉窑通风设备有限公司 | Cooling centrifugal hot air circulation blower can be carried out to stove inside |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109404306A (en) | 2019-03-01 |
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