CN206350181U - Oil heater - Google Patents
Oil heater Download PDFInfo
- Publication number
- CN206350181U CN206350181U CN201720054476.2U CN201720054476U CN206350181U CN 206350181 U CN206350181 U CN 206350181U CN 201720054476 U CN201720054476 U CN 201720054476U CN 206350181 U CN206350181 U CN 206350181U
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- China
- Prior art keywords
- heating rod
- oil heater
- heat
- sleeve pipe
- inner sleeve
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Abstract
The utility model is related to a kind of oil heater, including sleeve pipe, the heating rod being arranged in described sleeve pipe, described sleeve pipe includes outer tube, the inner sleeve being arranged in described outer tube, described heating rod is arranged in described inner sleeve, and heat-conducting layer is provided with one of between described inner sleeve and described heating rod between at least described outer tube and described inner sleeve.The utility model reduces its thermal resistance by improving the structure of sleeve pipe and heating rod, greatly improves heat conduction heat, and reduction heating rod surface temperature can not only reduce cost, can also significantly increase the service life, improve reliability.
Description
Technical field
The utility model is related to a kind of oil heater, more particularly to a kind of oil heater for being used in air-conditioning centrifuge.
Background technology
Existing centrifuge typically uses sleeve pipe radiant heating form with oil heater, and it includes sleeve pipe, is arranged on sleeve pipe
Interior oily heating rod.Heating rod and sleeve pipe are spaced a distance, and sleeve pipe is directly contacted with oil and heated.What heating rod was produced
Heat adds radiation heat transfer to pass to sleeve pipe through air conduction, because the thermal resistance of air is big, heat conduction heat is smaller, so that radiation heat transfer
As main heat exchange form.Under such a setting, cause the temperature difference between heating rod and sleeve pipe very big, the surface temperature meeting of heating rod
Very high, this requires comparison high for the quality of heating rod, if such as heating rod surfacing temperature resistant grade not enough, just than
It is easier to failure.
As shown in figure 1, be provided with certain spacing between heating rod 2 and sleeve pipe 1, such as distance therebetween can be with
Reach more than ten millimeter.In the case of larger spacing, when heating oil temperature, heating rod is in dry-fire condition in atmosphere, and
And the thermal conductivity factor very little of air, heating rod surface temperature can be very high, such as when sleeve surface temperature is 100 degree or so, plus
Hot pin surface temperature can reach 600 degree or so, now, and heat radiation is main radiating mode.This is for the efficiency of heating surface and heating rod
Performance adversely affect.
The content of the invention
The purpose of this utility model is to provide a kind of oil heater, particularly a kind of oil heater applied on air-conditioning.
To reach above-mentioned purpose, the technical solution adopted in the utility model is：
A kind of oil heater, including sleeve pipe, the heating rod that is arranged in described sleeve pipe, described sleeve pipe include overcoat
The inner sleeve managed, be arranged in described outer tube, described heating rod is arranged in described inner sleeve, and at least described is outer
Heat-conducting layer is provided with one of between described inner sleeve and described heating rod between sleeve pipe and described inner sleeve.
Preferably, described heat-conducting layer includes the first heat conduction being arranged between described outer tube and described inner sleeve
Layer, the second heat-conducting layer being arranged between described inner sleeve and described heating rod.
It is further preferred that the material of the first described heat-conducting layer is magnesia powder.
It is further preferred that the material of the second described heat-conducting layer is heat-conducting silicone grease.
It is further preferred that the second described heat-conducting layer is applied on the outer peripheral face of described heating rod.
Preferably, it is smaller than 2mm between described inner sleeve and described heating rod.
Preferably, the material of described sleeve pipe is stainless steel.
Preferably, described sleeve pipe and the heating rod are cylindric.
Preferably, described oil heater is used to heat oil in compressor.
Because above-mentioned technical proposal is used, the utility model has following advantages compared with prior art：
The utility model reduces its thermal resistance by improving the structure of sleeve pipe and heating rod, greatly improves heat conduction heat simultaneously
Radiation heat transfer is reduced, heating rod surface temperature is all greatly reduced, cost can be not only greatly reduced, such as can reduce by 50%
Cost, can also significantly increase the service life, and improve reliability.
Brief description of the drawings
Accompanying drawing 1 is the structural representation of oil heater in the prior art；
Accompanying drawing 2 is the structural representation of oil heater in the present embodiment.
Wherein：1st, sleeve pipe；10th, outer tube；11st, inner sleeve；2nd, heating rod；3rd, the first heat-conducting layer；4th, the second heat-conducting layer.
Embodiment
Below in conjunction with the accompanying drawings and embodiment is further described to the utility model：
For the ease of description, element similar with identical label mark in Fig. 2 Fig. 1.One kind oil heating as shown in Figure 2
Device, including sleeve pipe 1, the heating rod 2 that is arranged in sleeve pipe 1, the material of sleeve pipe 1 can use stainless steel.In the present embodiment, it is oily
Heater is used to heat the oil in compressor of air conditioner, to ensure that unit can be run at a normal temperature.Certainly, the utility model oil
Heater can be used with other any possible compressors.
Sleeve pipe 1 specifically includes outer tube 10, the inner sleeve being arranged in outer tube 10 11, and heating rod 2 is arranged on inner sleeve
In 11.In the present embodiment, sleeve pipe 1 and heating rod 2 are cylindric, and it can be respectively other shapes, and according to specific need
Will, the shape of the two also can be different.There is the first heat-conducting layer 3 between outer tube 10 and inner sleeve 11.In a non-limiting implementation
In example：First heat-conducting layer 3 can use magnesium oxide material；There is the second heat-conducting layer 4, second leads between inner sleeve 11 and heating rod 2
Thermosphere 4 can use heat-conducting silicone grease.Certain first heat-conducting layer 3, the second heat-conducting layer 4 can also be using other heat-conductings.At it
In his example, the first heat-conducting layer 3 and the second heat-conducting layer 4 also can the two select one to set.In a non-limiting examples, inner sleeve
Spacing between pipe 11 and heating rod 2 is smaller than 2mm, such as 1mm.
After tested, it is interior when the surface of outer tube 10 maintains the temperature of more than 100 degree for the oil heater after improved structure
The surface temperature of sleeve pipe 11 is more than 130, and the surface temperature of heating rod 2 is more than 160 degree.It can be seen that, compared to adding for traditional oil heater
The surface temperature that hot pin more than 600 is spent, the surface temperature of the heating rod 2 after improvement is greatly reduced, and now radiation heat transfer accounts for total radiating
The proportion of amount is also reduced a lot.Therefore, the type selecting temperature resistant grade of the material of heating rod 2 can be reduced, and cost can also be reduced accordingly；
And compared with the design of prior art, maintenanceability can keep constant, only need individually to extract heating rod 2 out and outside it during replacing
Heat-conducting silicone grease is smeared on side face.
Above-described embodiment is only to illustrate technical concepts and features of the present utility model, and its object is to allow be familiar with technique
Personage can understand content of the present utility model and implement according to this, protection domain of the present utility model can not be limited with this.
All equivalent change or modifications made according to the utility model Spirit Essence, should all cover protection domain of the present utility model it
It is interior.
Claims (9)
1. a kind of oil heater, including sleeve pipe, the heating rod that is arranged in described sleeve pipe, it is characterised in that：Described sleeve pipe
Including outer tube, the inner sleeve being arranged in described outer tube, described heating rod is arranged in described inner sleeve, at least
Heat conduction is provided with one of between described inner sleeve and described heating rod between described outer tube and described inner sleeve
Layer.
2. oil heater according to claim 1, it is characterised in that：Described heat-conducting layer includes being arranged on described overcoat
Manage and the first heat-conducting layer between described inner sleeve, second leading of being arranged between described inner sleeve and described heating rod
Thermosphere.
3. oil heater according to claim 2, it is characterised in that：The material of the first described heat-conducting layer is magnesia material
Material.
4. oil heater according to claim 2, it is characterised in that：The material of the second described heat-conducting layer is thermal conductive silicon
Fat.
5. oil heater according to claim 2, it is characterised in that：The second described heat-conducting layer is applied to described heating
On the outer peripheral face of rod.
6. oil heater according to claim 1, it is characterised in that：Between described inner sleeve and described heating rod
It is smaller than 2mm.
7. oil heater according to claim 1, it is characterised in that：The material of described sleeve pipe is stainless steel.
8. oil heater according to claim 1, it is characterised in that：Described sleeve pipe and the heating rod are cylinder
Shape.
9. oil heater according to claim 1, it is characterised in that：Described oil heater is used for compressor
Middle oil is heated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720054476.2U CN206350181U (en) | 2017-01-18 | 2017-01-18 | Oil heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720054476.2U CN206350181U (en) | 2017-01-18 | 2017-01-18 | Oil heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206350181U true CN206350181U (en) | 2017-07-21 |
Family
ID=59324203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720054476.2U Active CN206350181U (en) | 2017-01-18 | 2017-01-18 | Oil heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206350181U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111623822A (en) * | 2020-05-25 | 2020-09-04 | 西安交通大学 | Cylindrical heating rod test section with cavity and parameter measurement method thereof |
-
2017
- 2017-01-18 CN CN201720054476.2U patent/CN206350181U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111623822A (en) * | 2020-05-25 | 2020-09-04 | 西安交通大学 | Cylindrical heating rod test section with cavity and parameter measurement method thereof |
| CN111623822B (en) * | 2020-05-25 | 2021-07-27 | 西安交通大学 | Cylindrical heating rod test section with cavity and parameter measurement method thereof |
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|---|---|---|---|
| GR01 | Patent grant |