CN209197429U - A kind of airflow heating device - Google Patents
A kind of airflow heating device Download PDFInfo
- Publication number
- CN209197429U CN209197429U CN201821986671.XU CN201821986671U CN209197429U CN 209197429 U CN209197429 U CN 209197429U CN 201821986671 U CN201821986671 U CN 201821986671U CN 209197429 U CN209197429 U CN 209197429U
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- CN
- China
- Prior art keywords
- heating device
- cylinder
- fever tablet
- ptc ceramics
- ring body
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Abstract
A kind of airflow heating device, including cylinder and heating device, heating device is set in cylinder, it is characterized by: the heating device includes cooling stand and at least one PTC ceramics fever tablet, cooling stand is mounted on the inner wall of cylinder, cooling stand is equipped with the airspace that multiple gas supply streams pass through, and PTC ceramics fever tablet is mounted on cooling stand.The utility model uses PTC ceramics fever tablet heating power, and is heated by cooling stand to by the air-flow of cylinder, and the hot stream temperature of the thermal current of formation, submitting is relatively stable, and can be effectively reduced energy consumption, is conducive to the utilization efficiency for improving electric energy.
Description
Technical field
The utility model relates to heating devices, and in particular to a kind of airflow heating device.
Background technique
Currently, airflow heating device provisioned in dryer generally comprises cylinder and heating device, heating device is set to
In cylinder.When work, heating device operation, after cold air enters in cylinder from cylinder one end, after heated device heating, from cylinder
The body other end sends out thermal current, blows to article to be dried and is heated, dried to it.Heating device mostly uses greatly resistance
Silk, the disadvantage is that own power can not be adjusted, power consumption is larger, reduces the utilization efficiency of electric energy, and the hot stream temperature sent out
It is unstable；In addition, cylinder is generally made of metal material, the capacity of heat transmission is stronger, airflow heating device for a period of time after cylinder
Body is too warm, and there are the risks of accidental scalding staff.
Summary of the invention
The technical problem to be solved by the utility model is to provide a kind of airflow heating device, this airflow heating device energy
It is enough that air-flow is heated, the relatively stable thermal current of temperature is sent out, and be conducive to improve the utilization efficiency of electric energy.The technical side of use
Case is as follows:
A kind of airflow heating device, including cylinder and heating device, heating device are set in cylinder, it is characterised in that: institute
Stating heating device includes cooling stand and at least one PTC ceramics fever tablet, and cooling stand is mounted on the inner wall of cylinder, heat dissipation
Bracket is equipped with the airspace that multiple gas supply streams pass through, and PTC ceramics fever tablet is mounted on cooling stand.
When work, heating device operation, wherein PTC ceramics fever tablet is generated heat after being powered, and is heated to cooling stand；Cold sky
After gas enters in cylinder from cylinder one end, it is heated by carrying out heat exchange with cooling stand when airspace, the heat of formation
Air-flow is sent out from the cylinder other end.PTC ceramics fever tablet have constant temperature warming characteristic, after power-up self-heating heating make resistance value increase into
Enter transition area, surface temperature keeps constant value, so that cooling stand temperature be made to keep constant, and then makes the thermal current temperature sent out
Degree is kept constant；And due to the adjustment effect of PTC ceramics fever tablet itself, it can be effectively reduced energy consumption, improve the benefit of electric energy
Use efficiency.
In general, above-mentioned PTC ceramics fever tablet includes PTC ceramics piece and two electrodes, two electrodes are respectively arranged on PTC ceramics
On the two sides of piece.Two electrodes, can be (conductive by conductive glue connection or welding between electrode and conducting wire by conducting wire external power supply
Glue should use conducting resinl resistant to high temperature).
It is preferred that above-mentioned heating device includes multiple PTC ceramics fever tablets.This multiple PTC ceramics fever tablet is generally around cylinder
The center line of body is uniformly distributed.
Above-mentioned cooling stand is made of Heat Conduction Material (such as stainless steel, aluminium alloy, copper, copper alloy).
Above-mentioned cooling stand generallys use metal material and is made, and leaks electricity in order to prevent, in preferred embodiment, above-mentioned PTC ceramics
Fever tablet surface is coated with insulation sleeve.Insulation sleeve is to the insulation between PTC ceramics fever tablet and cooling stand.
In a kind of concrete scheme, above-mentioned insulation sleeve includes the polyimides being coated on the lateral surface of PTC ceramics fever tablet
Film cylinder (is wound into tubular by polyimide film), and filled with insulating cement, (insulating cement is answered in the opening at polyimide film cylinder both ends
Using insulating cement resistant to high temperature, such as 958 glue).The insulating cement filled is by the closure of openings at polyimide film cylinder both ends, with polyamides
Closed insulation sleeve is collectively formed in imines film cylinder, and PTC ceramics fever tablet is sealed.
In preferred embodiment, it is successively coated with layer of silica gel and polyimide film, silicon from the inside to the outside on the outside of above-mentioned cooling stand
Polyimide film is connect by glue-line with cooling stand, and the inner wall of polyimide film and cylinder is in close contact.Above-mentioned layer of silica gel
Play the role of heat-insulated and insulation, polyimide film plays insulation, to weaken between cooling stand and cylinder
Heat transmitting, keeps barrel temperature not too high, and cylinder can be effectively prevent to leak electricity, enhances the safety of airflow heating device.In addition,
Utilize the elasticity of layer of silica gel itself, it can be ensured that the inner wall of polyimide film and cylinder is in close contact, and keeps cooling stand more firm
Admittedly be mounted on cylinder.
In preferred embodiment, insulation material layer is coated on the lateral surface of above-mentioned cylinder.Insulation material layer can by glass-fiber-fabric or
Quartz glass fibre cloth is constituted.By the way that insulation material layer is arranged, it on the one hand can reduce airflow heating device and radiate and generate outward
Heat energy loss, on the other hand can reduce the temperature on airflow heating device surface, prevent from scalding, enhance safety.
In preferred embodiment, above-mentioned cooling stand includes circular radiating unit and central heat sink unit, and central heat sink unit is set
In the inside of circular radiating unit, each PTC ceramics fever tablet is set between circular radiating unit and central heat sink unit；Annular dissipates
Hot cell includes multiple outer cooling fins of outer ring body and the circumferential array along outer ring body, and each outer cooling fin inner end is and outer ring body
Lateral surface connection, form airspace between two neighboring outer cooling fin；Central heat sink unit includes inner ring body and along interior
Multiple interior cooling fins of the circumferential array of ring body, each interior cooling fin inner end are connect with the lateral surface of inner ring body, two neighboring interior
Airspace is formed between cooling fin.In general, each outer cooling fin is evenly distributed along the circumferential direction of outer ring body, each interior cooling fin is along inner ring
The circumferential direction of body is evenly distributed.PTC ceramics fever tablet is set between circular radiating unit and central heat sink unit, so that PTC makes pottery
The heat that porcelain fever tablet generates can transmit outer two sides respectively inwards, keep entire cooling stand Temperature Distribution more uniform；Moreover,
It is logical that the airspace between the airspace and outer cooling fin between through-hole, interior cooling fin in inner ring body is available for air-flow
Cross, the interior lateral surface of inner ring body, interior fin surface, the lateral surface of outer ring body, outer cooling fin surface can be connect with air-flow
Heat exchange is touched and carried out, the contact area of cooling stand and air-flow is increased, improves heat exchanger effectiveness.
In more preferable scheme, the medial surface of above-mentioned outer ring body is equipped at least one limiting slot, and limiting slot and PTC ceramics are sent out
Backing quantity is identical and corresponds, and PTC ceramics fever tablet is in corresponding limiting slot.By the way that limiting slot is arranged, it is more convenient for
The positioning and installation of PTC ceramics fever tablet.
In preferred embodiment, above-mentioned cylinder is made of stainless steel.Other heat-resisting materials can also be used in cylinder, and (such as aluminium closes
Gold, copper, copper alloy etc.) it is made.
In preferred embodiment, above-mentioned cylinder one end is equipped with flange.Flange is set accordingly for airflow heating device to be installed to
Standby upper (being such as installed on the air outlet of blower).In general, flange and barrel soldering；Material system identical with cylinder can be used in flange
At.
The utility model uses PTC ceramics fever tablet heating power, and is added by cooling stand to by the air-flow of cylinder
The hot stream temperature of heat, the thermal current of formation, submitting is relatively stable, and can be effectively reduced energy consumption, is conducive to improve electric energy
Utilization efficiency.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the preferred embodiment in the utility model；
Fig. 2 is the bottom view of Fig. 1；
Fig. 3 is the structural schematic diagram of PTC ceramics fever tablet in the preferred embodiment in the utility model.
Specific embodiment
As depicted in figs. 1 and 2, this airflow heating device includes cylinder 1 and heating device, and heating device is set to cylinder 1
In；Heating device includes cooling stand 2 and this multiple PTC ceramics fever tablet 3 of multiple PTC ceramics fever tablet 3(around cylinder 1
Center line is uniformly distributed), cooling stand 2 is mounted on the inner wall of cylinder 1, and cooling stand 2 is equipped with what multiple gas supply streams passed through
Airspace 4, PTC ceramics fever tablet 3 are mounted on cooling stand 2.
With reference to Fig. 3, PTC ceramics fever tablet 3 includes PTC ceramics piece 31 and two electrodes 32, and two electrodes 32 are respectively arranged on
On the two sides of PTC ceramics piece 31.Two electrodes 32 can pass through conducting resinl by 5 external power supply of conducting wire between electrode 32 and conducting wire 5
6 connections (conducting resinl uses conducting resinl resistant to high temperature).In the present embodiment, 3 surface of PTC ceramics fever tablet is coated with insulation sleeve 7.
The polyimide film cylinder 71(that insulation sleeve 7 is coated on the lateral surface of PTC ceramics fever tablet 3 is wound by polyimide film
At tubular), insulating cement resistant to high temperature is used filled with insulating cement 72(insulating cement in the opening at 71 both ends of polyimide film cylinder, such as
958 glue).The insulating cement 72 filled is by the closure of openings at 71 both ends of polyimide film cylinder, with the common shape of polyimide film cylinder 71
At closed insulation sleeve 7, PTC ceramics fever tablet 3 is sealed.
In the present embodiment, cooling stand 2 includes circular radiating unit 21 and central heat sink unit 22, central heat sink unit 22
Set on the inside of circular radiating unit 21, each PTC ceramics fever tablet 3 be set to circular radiating unit 21 and central heat sink unit 22 it
Between；Circular radiating unit 21 includes multiple outer cooling fins 212 of outer ring body 211 and the circumferential array along outer ring body 211, each outer
211 inner end of cooling fin is connect with the lateral surface of outer ring body 211, and airspace 4 is formed between two neighboring outer cooling fin 212
(4-1)；Central heat sink unit 22 includes multiple interior cooling fins 222 of inner ring body 221 and the circumferential array along inner ring body 221,
Each 222 inner end of interior cooling fin is connect with the lateral surface of inner ring body 221, is formed between ventilation between two neighboring interior cooling fin 222
Gap 4(4-2).Each outer cooling fin 212 is evenly distributed along the circumferential direction of outer ring body 211, week of each interior cooling fin 222 along inner ring body 221
To evenly distributed.The airspace 4(4-2 between through-hole 223, interior cooling fin 222 in inner ring body 221) and outer cooling fin
Airspace 4(4-1 between 212) it is available for air-flow and passes through, it is the interior lateral surface of inner ring body 221,222 surface of interior cooling fin, outer
The lateral surface of ring body 211, outer cooling fin 212 surface can with air flow contacts and carry out heat exchange.Circular radiating unit 21
Heat Conduction Material (such as stainless steel, aluminium alloy, copper or copper alloy) is all made of with central heat sink unit 22 to be made.
The medial surface of outer ring body 211 is equipped with multiple limiting slots 213, limiting slot 213 and 3 quantity phase of PTC ceramics fever tablet
Same and one-to-one correspondence (PTC ceramics fever tablet 3 and limiting slot 213 are respectively equipped with six in the present embodiment), PTC ceramics fever tablet 3
It is in corresponding limiting slot 213.
2 outside of cooling stand is successively coated with layer of silica gel 8 and polyimide film 9 from the inside to the outside, and layer of silica gel 8 is sub- by polyamides
Amine film layer 9 connect (polyimide film 9 is connect by layer of silica gel 8 with circular radiating unit 21 in the present embodiment) with cooling stand 2,
The inner wall of polyimide film 9 and cylinder 1 is in close contact.
Insulation material layer 10 is coated on the lateral surface of cylinder 1.Insulation material layer 10 can be fine by glass-fiber-fabric or quartz glass
Wei Bu is constituted.
The present embodiment middle cylinder body 1 is made of stainless steel.Cylinder 1 can also be used other heat-resisting materials (such as aluminium alloy,
Copper, copper alloy etc.) it is made.
1 one end of cylinder is equipped with flange 11.Flange 11 and cylinder 1 weld；Flange 11 uses material system identical with cylinder 1
At.
The working principle of brief description once this airflow heating device:
When work, heating device operation, wherein PTC ceramics fever tablet 3 is generated heat after being powered, and is heated to cooling stand 2；It is cold
After air enters in cylinder 1 from 1 one end of cylinder, it is heated by carrying out heat exchange with cooling stand 2 when airspace 4, shape
At thermal current from 1 other end of cylinder send out (airflow direction is as denoted by the arrows in fig. 2).PTC ceramics fever tablet 3 has constant temperature
Heat generation characteristic, self-heating heating increases resistance value and enters transition area after power-up, and surface temperature keeps constant value, to make heat dissipation branch
2 temperature of frame is kept constant, and then keeps constant the hot stream temperature sent out；And due to the tune of PTC ceramics fever tablet 3 itself
Section effect, can be effectively reduced energy consumption, improves the utilization efficiency of electric energy.
Claims (10)
1. a kind of airflow heating device, including cylinder and heating device, heating device is set in cylinder, it is characterised in that: described
Heating device includes cooling stand and at least one PTC ceramics fever tablet, and cooling stand is mounted on the inner wall of cylinder, heat dissipation branch
Frame is equipped with the airspace that multiple gas supply streams pass through, and PTC ceramics fever tablet is mounted on cooling stand.
2. airflow heating device according to claim 1, it is characterized in that: the heating device includes multiple PTC ceramics
Fever tablet.
3. airflow heating device according to claim 1 or 2, it is characterized in that: PTC ceramics fever tablet surface is coated with
Insulation sleeve.
4. airflow heating device according to claim 3, it is characterized in that: the insulation sleeve is coated on PTC ceramics hair
Polyimide film cylinder on the lateral surface of backing is filled with insulating cement in the opening at polyimide film cylinder both ends.
5. airflow heating device according to claim 1 or 2, it is characterized in that: the outside of the cooling stand is from the inside to the outside
It is successively coated with layer of silica gel and polyimide film, polyimide film is connect by layer of silica gel with cooling stand, polyimide film
The inner wall of layer and cylinder is in close contact.
6. airflow heating device according to claim 1 or 2, it is characterized in that: be coated on the lateral surface of the cylinder every
Hot material layer.
7. airflow heating device according to claim 6, it is characterized in that: the insulation material layer is by glass-fiber-fabric or quartzy glass
Glass fiber cloth is constituted.
8. airflow heating device according to claim 1 or 2, it is characterized in that: the cooling stand includes circular radiating list
Member and central heat sink unit, central heat sink unit are set to the inside of circular radiating unit, and each PTC ceramics fever tablet is set to annular and dissipates
Between hot cell and central heat sink unit；Circular radiating unit include outer ring body and along outer ring body circumferential array it is multiple outer
Cooling fin, each outer cooling fin inner end are connect with the lateral surface of outer ring body, form airspace between two neighboring outer cooling fin；
Central heat sink unit includes multiple interior cooling fins of inner ring body and the circumferential array along inner ring body, each interior cooling fin inner end with
The lateral surface of inner ring body connects, and forms airspace between two neighboring interior cooling fin.
9. airflow heating device according to claim 8, it is characterized in that: the medial surface of the outer ring body is equipped at least one
A limiting slot, limiting slot is identical as PTC ceramics fever tablet quantity and corresponds, and PTC ceramics fever tablet is in corresponding limit
In slot.
10. airflow heating device according to claim 1 or 2, it is characterized in that: described cylinder one end is equipped with flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821986671.XU CN209197429U (en) | 2018-11-29 | 2018-11-29 | A kind of airflow heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821986671.XU CN209197429U (en) | 2018-11-29 | 2018-11-29 | A kind of airflow heating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209197429U true CN209197429U (en) | 2019-08-02 |
Family
ID=67426708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821986671.XU Expired - Fee Related CN209197429U (en) | 2018-11-29 | 2018-11-29 | A kind of airflow heating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209197429U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112728626A (en) * | 2021-01-05 | 2021-04-30 | 北京旭碳新材料科技有限公司 | Heating system |
-
2018
- 2018-11-29 CN CN201821986671.XU patent/CN209197429U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112728626A (en) * | 2021-01-05 | 2021-04-30 | 北京旭碳新材料科技有限公司 | Heating system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190802 Termination date: 20211129 |