CN108224776A - A kind of electric heater for heat conduction oil - Google Patents
A kind of electric heater for heat conduction oil Download PDFInfo
- Publication number
- CN108224776A CN108224776A CN201810183543.XA CN201810183543A CN108224776A CN 108224776 A CN108224776 A CN 108224776A CN 201810183543 A CN201810183543 A CN 201810183543A CN 108224776 A CN108224776 A CN 108224776A
- Authority
- CN
- China
- Prior art keywords
- oil
- electric heater
- heat conduction
- conduction oil
- oil pump
- 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.)
- Granted
Links
- 238000007789 sealing Methods 0.000 claims abstract description 32
- 238000001816 cooling Methods 0.000 claims description 24
- 239000000498 cooling water Substances 0.000 claims description 19
- 239000007788 liquid Substances 0.000 claims description 10
- 238000005485 electric heating Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- 239000000945 filler Substances 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 238000004321 preservation Methods 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims 1
- 238000004939 coking Methods 0.000 abstract description 6
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 238000010438 heat treatment Methods 0.000 description 9
- 230000001681 protective effect Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000012774 insulation material Substances 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 206010020852 Hypertonia Diseases 0.000 description 1
- 206010037660 Pyrexia Diseases 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H7/00—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release
- F24H7/002—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release using electrical energy supply
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
The present invention relates to a kind of electric heater for heat conduction oil, the electric heater includes oil storage housing, oil pump and electric heater, the oil storage enclosure interior defines the oil pocket equipped with conduction oil, the electric heater is set in the oil pocket, oil pump oil inlet is connected with the oil pocket, it is provided with the conduction oil oil return opening connected with the oil pocket on the oil storage housing, the electric heater is around the periphery of the oil pump oil inlet.The oil storage housing includes oil storage barrel and is installed on the sealing cover of the oil storage barrel upper port, oil pump shaft mounting hole is provided on the sealing cover, the oil pump is fixedly installed on the sealing cover, the blade drive shaft of the oil pump is rotatably installed in the oil pump shaft mounting hole and extends downwardly, to ensure that oil pump oil inlet is in the lower part of the oil storage barrel.The electric heater of the present invention has that the thermal efficiency is high, temperature control precision height and the advantages of low energy consumption, the phenomenon that can effectively avoid conduction oil coking.
Description
Technical field
The present invention relates to electric-heating technology fields, and in particular to a kind of electric heater for heat conduction oil.
Background technology
With industrial development and the progress of science and technology, organic heat carrier furnace has obtained continuous development and should
With.Although the operating pressure of organic heat carrier furnace, than relatively low, stove heat conduction liquid temperature is high, and has mostly inflammable and explosive
Characteristic, once it leaks in operation, it will cause the accidents such as fire, explosion or even cause casualties and property loss.
Therefore, to the safe operation of organic heat carrier furnace and management, it is necessary to pay much attention to.Electric heater for heat conduction oil is a kind of novel, peace
Entirely, energy-efficient, low pressure (under normal pressure or lower pressure) and the special industrial stove that can provide high temperature heat are carried by heat of conduction oil
Body recycles conduction oil by hot oil pump, transfers heat to heating equipment.
Existing electric heater for heat conduction oil finds that there are following problems in long-term use：1st, the thermal efficiency is low；2、
The easy coking of conduction oil is susceptible in heating liner, damages heater；3rd, temperature control precision is low and high energy consumption.
Invention content
The purpose of the present invention is to provide a kind of electric heater for heat conduction oil, are deposited to solve existing electric heater for heat conduction oil
It is low in the thermal efficiency；The easy coking of conduction oil is susceptible in heating liner, damages heater；And temperature control precision is low and high energy consumption
The problem of.
To achieve the above object, the present invention provides a kind of electric heater for heat conduction oil, and the electric heater for heat conduction oil includes storage
Oilcan body, oil pump and electric heater, the oil storage enclosure interior define the oil pocket equipped with conduction oil, the electric heater setting
In in the oil pocket, oil pump oil inlet is connected with the oil pocket, is provided on the oil storage housing and is led with what the oil pocket connected
Deep fat oil return opening, the electric heater is around the periphery of the oil pump oil inlet.
Preferably, the oil storage housing includes oil storage barrel and is installed on the sealing cover of the oil storage barrel upper port, described close
Oil pump shaft mounting hole is provided in capping, the oil pump is fixedly installed on the sealing cover, the blade drive shaft of the oil pump
It is rotatably installed in the oil pump shaft mounting hole and extends downwardly, to ensure that oil pump oil inlet is under the oil storage barrel
Portion.
Preferably, the electric heater is electric heating coil heater.
Preferably, the electric heater for heat conduction oil further includes manual oiling slot, is offered at the top of the manual oiling slot
Oil filler, the lower part of the manual oiling slot offer the oil outlet connected with the oil pocket.
Preferably, the temperature measuring equipment for measuring heat conduction oil temperature is additionally provided on the sealing cover.
Preferably, the liquid level detector for measuring conduction oil liquid level in oil pocket is additionally provided on the sealing cover.
Preferably, oil pump cooling chamber is set on the housing of the Oil pump electrical machinery, and the oil pump cooling chamber is respectively arranged with oil
Pump cooling water inlet pipe and oil pump cooling water outlet pipe.
Preferably, conduction oil cooling chamber is additionally provided in the oil storage housing, the conduction oil cooling chamber is respectively arranged with
Conduction oil cools down water inlet pipe and conduction oil cooling water outlet pipe.
Preferably, the bottom of the oil storage housing is provided with hollow base.
Preferably, it is enclosed with one layer of heat preservation material on the peripheral surface of the oil storage barrel.
The invention has the advantages that：
1. the electric heater for heat conduction oil of the present invention makes structure compacter, reduces volume, so as to save by optimization design
Material and space.
2. the electric heater for heat conduction oil of the present invention is directly connected to, therefore reduce mechanical biography using oil pump with blade drive shaft
Dynamic loss.
3. the components such as oil storage barrel make by using stainless steel material, make electric heater for heat conduction oil more beautiful, durable.
4. conduction oil is heated by using electric heating coil heater, so as to improve heat transfer efficiency.
5. electric heater for heat conduction oil uses electric energy as the fever energy, cleanliness without any pollution.
6. measuring the temperature of conduction oil in real time by temperature measuring equipment, the work of electric heater is controlled, is led so as to improve
The temperature-controlled precision of deep fat electric heater allows fuel-displaced temperature to control at positive and negative 1 degree.
7. detecting the height of heat conduction oil level in real time by liquid level detector, conduction oil coking problem can effectively avoid.
8. electric heater for heat conduction oil utilizes intelligent control system, using advanced electrical control pattern-modulator, adjustment
Voltage and current realizes minimum power consumption, and a large amount of electricity costs are saved for user.
Description of the drawings
Fig. 1 is the side elevational cross-section structure diagram of electric heater for heat conduction oil of the present invention.
Fig. 2 is the overlooking the structure diagram of electric heater for heat conduction oil of the present invention.
Specific embodiment
The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention..
As illustrated in fig. 1 and 2, which includes oil storage housing 1, oil pump 2 and electric heater 3, oil storage housing 1
Inside define oil pocket 11, conduction oil is housed in oil pocket 11.Oil storage housing 1 includes oil storage barrel 14 and sealing cover 15, oil storage barrel
14 and sealing cover 15 be made of stainless steel, thus make its appearance more beautiful, while oil storage can be effectively prevent using stainless steel
Corrosion occurs for bucket 14 and sealing cover 15, prolongs the service life.The upper end opening of oil storage barrel 14, the edge of 14 upper port of oil storage barrel are set
Flange is equipped with, the top of the peripheral surface of oil storage barrel 14 is provided with the conduction oil oil return opening 12 connected with oil pocket 11, further, storage
The lower part of oil drum 14 is additionally provided with the sewage draining exit 23 for discharge impurities.The outer edge of sealing cover 15 offers multiple through-holes, close
Capping 15 is installed on the upper port of oil storage barrel 14 by the bolt in through-hole.Further, the upper surface of flange and sealing cover 15
Lower surface between gasket is installed, gasket can effectively prevent conduction oil pass through the upper surface of flange under sealing cover 15
Gap between surface leaks.Oil pump shaft mounting hole is provided on sealing cover 15, the internal diameter of oil pump shaft mounting hole is slightly larger than
The diameter of the blade drive shaft of oil pump 2.Oil pump 2 is fixedly installed on sealing cover 15, and the blade drive shaft of oil pump 2 is rotationally pacified
Loaded in oil pump shaft mounting hole and extending downwardly, to ensure that the oil inlet of oil pump 2 is in the lower part of oil storage barrel 14.Further,
The upper surface of sealing cover 15 is also installed with protective cover 22, and protective cover 22 is set in Oil pump electrical machinery is wrapped on protective cover 22
Cable-through hole is equipped with, motor and the conducting wire of other equipment can be made to draw protective cover 22.Gas vent 24 is additionally provided on sealing cover 15, is arranged
Stomata 24 prevents hypertonia in oil storage barrel 14 for gas of releasing.Further, it is also installed on the inner wall of oil pump shaft mounting hole
There is sealing ring, sealing ring can prevent for the gap between the blade drive shaft of sealing oil pump 2 and oil pump shaft mounting hole, sealing ring
Conduction oil overflows oil storage barrel 14 along high-speed rotating blade drive shaft.
Electric heater 3 is in the present embodiment for electric heating coil heater, and electric heating coil heater is around oil pump oil inlet
Periphery, conduction oil is heated by using electric heating coil heater, electric energy conversion efficiency can be effectively improved.Electric heater
3 are electrically connected with main control device, change the power of electric heater 3 by adjusting voltage and current, and then change the temperature of conduction oil
Degree.
In use, oil pump out of the mouth 13 is connect with the oil inlet of heating tube, by conduction oil oil return opening 12 and heating tube
Oil outlet connects, and electric heater for heat conduction oil forms a circuit with heating tube, is delivered to the conduction oil of high temperature by oil pump 2 and adds
In heat pipe, heating tube is treated heating member using the heat that conduction oil discharges and is heated.
In one embodiment of the invention, electric heater for heat conduction oil 3 further includes manual oiling slot 4, and manual oiling slot 4 is in
Top offers the barrel-like structure of oil filler, it is of course also possible in funnel-form or other shapes, the lower part of manual oiling slot 4 is opened
Equipped with the oil outlet connected with 11 top of oil pocket.When the height of heat conduction oil level in oil pocket 11 is less than the height of 3 upper end of electric heater
When spending, conduction oil coking phenomenon easily occurs, therefore, it is necessary to add conduction oil into manual oiling slot 4, conduction oil passes through fuel-displaced
Mouth enters in oil pocket 11, so as to improve the height of heat conduction oil level in oil pocket 11.Further, the oil filler of manual oiling slot 4
Oiling slot sealing cover 41 is installed, oiling slot sealing cover 41 and the oil filler of manual oiling slot 4 connect by socket, screw thread or hingedly
It connects.In use, opening oiling slot sealing cover 41, conduction oil is added to oiling slot, after use, covers oiling slot sealing cover 41
Oiling slot is made to be isolated from the outside world.
In one embodiment of the invention, temperature measuring equipment 16, temperature measuring equipment are additionally provided on sealing cover 15
16 for measuring heat conduction oil temperature, and temperature measuring equipment 16 is electrically connected with main control device, and temperature measuring equipment 16 will measure in real time
Temperature value be converted into electric signal and be sent to main control device, the real time temperature that main control device is measured according to temperature measuring equipment 16,
Change the power of electric heater 3, and then change the temperature of conduction oil, by closed-loop control, so as to improve electric heater for heat conduction oil
Temperature-controlled precision, fuel-displaced temperature is allow to control at positive and negative 1 degree.
In one embodiment of the invention, be additionally provided with liquid level detector 17 on sealing cover 15, liquid level detector 17 with
Main control device is electrically connected, and liquid level detector 17 is used to measure the height of heat conduction oil level in oil pocket 11, and the liquid level is turned
It turns to electric signal and is sent to main control device, when the height of heat conduction oil level is less than preset value, main control device control electric heater 3
Stop heating, so as to effectively avoid the problem that conduction oil coking.
In one embodiment of the invention, oil pump cooling chamber 18, oil pump cooling chamber 18 are set on the housing of Oil pump electrical machinery
Can be integrally formed with the housing of Oil pump electrical machinery, can also be individually present and pass through bolt and the housing of Oil pump electrical machinery connect.Oil pump
Cooling chamber 18 is respectively arranged with oil pump cooling water inlet pipe 181 and oil pump cooling water outlet pipe, oil pump cooling chamber 18 is built-in be useful for
The cooling water of Oil pump electrical machinery cooling, cooling water cool down water inlet pipe 181 by oil pump and enter in oil pump cooling chamber 18, oil supply pump motor
It is flowed out again by oil pump cooling water outlet pipe after cooling.
In one embodiment of the invention, the lower part of oil storage housing 1 is additionally provided with conduction oil cooling chamber 19, heat conduction oil cooling
But chamber 19 is separated with oil pocket 11 by partition board, and conduction oil cooling chamber 19 is respectively arranged with conduction oil cooling water inlet pipe 191 and leads
Deep fat cooling water outlet pipe 192, the built-in cooling water for being useful for cooling down to conduction oil of conduction oil cooling chamber 19.When conduction oil needs soon
During prompt drop temperature, water inlet pipe 191 is cooled down by conduction oil and injects cooling water into conduction oil cooling chamber 19, cooling water is to conduction oil
It is flowed out again by conduction oil cooling water outlet pipe 192 after cooling, under the cooling of cooling water, cooling oil can be down to room temperature quickly
Or target temperature.Further, the bottom of oil storage housing 1 is provided with hollow base 20, and hollow base 20 can effectively prevent heat conduction
Scattering and disappearing for heat entrained by oil, reduces the energy consumption of electric heater for heat conduction oil 3.Further, it is wrapped up on the peripheral surface of oil storage barrel 14
There is one layer of heat preservation material 21, thermal insulation material 21 can be heat-preservation cotton, phenol formaldehyde foam or other materials.Thermal insulation material 21 equally also may be used
Scattering and disappearing for heat entrained by conduction oil is prevented, further reduces the energy consumption of electric heater for heat conduction oil 3.
Although above having used general explanation and specific embodiment, the present invention is described in detail, at this
On the basis of invention, it can be modified or improved, this will be apparent to those skilled in the art.Therefore,
These modifications or improvements without departing from theon the basis of the spirit of the present invention belong to the scope of protection of present invention.
Claims (10)
1. a kind of electric heater for heat conduction oil, the electric heater for heat conduction oil includes oil storage housing, oil pump and electric heater, feature
It is, the oil storage enclosure interior defines the oil pocket equipped with conduction oil, and the electric heater is set in the oil pocket, oil pump
Oil inlet is connected with the oil pocket, and the conduction oil oil return opening connected with the oil pocket, the electricity are provided on the oil storage housing
Heater is around the periphery of the oil pump oil inlet.
2. electric heater for heat conduction oil according to claim 1, which is characterized in that the oil storage housing includes oil storage barrel and peace
Sealing cover loaded on the oil storage barrel upper port is provided with oil pump shaft mounting hole, the oil pump fixed setting on the sealing cover
In on the sealing cover, the blade drive shaft of the oil pump is rotatably installed in the oil pump shaft mounting hole and to downward
It stretches, to ensure that oil pump oil inlet is in the lower part of the oil storage barrel.
3. electric heater for heat conduction oil according to claim 2, which is characterized in that the electric heater is heated for electric heating coil
Device.
4. electric heater for heat conduction oil according to claim 3, which is characterized in that the electric heater for heat conduction oil further includes hand
Oiling slot is moved, offers oil filler at the top of the manual oiling slot, the lower part of the manual oiling slot offers and the oil
The oil outlet of chamber connection.
5. electric heater for heat conduction oil according to claim 4, which is characterized in that be additionally provided with to survey on the sealing cover
Measure the temperature measuring equipment of heat conduction oil temperature.
6. electric heater for heat conduction oil according to claim 4, which is characterized in that be additionally provided with to survey on the sealing cover
Measure the liquid level detector of conduction oil liquid level in oil pocket.
7. electric heater for heat conduction oil according to claim 6, which is characterized in that oil is set on the housing of the Oil pump electrical machinery
Cooling chamber is pumped, the oil pump cooling chamber is respectively arranged with oil pump cooling water inlet pipe and oil pump cooling water outlet pipe.
8. electric heater for heat conduction oil according to claim 7, which is characterized in that be additionally provided with heat conduction in the oil storage housing
Oily cooling chamber, the conduction oil cooling chamber are respectively arranged with conduction oil cooling water inlet pipe and conduction oil cooling water outlet pipe.
9. electric heater for heat conduction oil according to claim 7, which is characterized in that the bottom setting of the oil storage housing is free
Heart pedestal.
10. electric heater for heat conduction oil according to claim 9, which is characterized in that wrapped up on the peripheral surface of the oil storage barrel
There is one layer of heat preservation material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810183543.XA CN108224776B (en) | 2018-03-06 | 2018-03-06 | Conduction oil electric heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810183543.XA CN108224776B (en) | 2018-03-06 | 2018-03-06 | Conduction oil electric heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108224776A true CN108224776A (en) | 2018-06-29 |
| CN108224776B CN108224776B (en) | 2024-03-19 |
Family
ID=62666877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810183543.XA Active CN108224776B (en) | 2018-03-06 | 2018-03-06 | Conduction oil electric heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108224776B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114061145A (en) * | 2021-11-12 | 2022-02-18 | 盐城市中然机械有限公司 | Protective device for heat conduction oil heater |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202101407U (en) * | 2011-06-03 | 2012-01-04 | 上海中锂实业有限公司 | Heating and cooling integrating heat-conducting oil electric heating equipment |
| CN102518589A (en) * | 2012-01-10 | 2012-06-27 | 合肥通用机械研究院 | Leakless high-temperature hot oil medium delivery pump |
| CN203586528U (en) * | 2013-12-12 | 2014-05-07 | 龙山红日锅炉有限公司 | Heat transfer oil electric heating furnace for cooking use |
| CN204460715U (en) * | 2015-02-09 | 2015-07-08 | 南阳医学高等专科学校 | A kind of chemical laboratory heating boiler |
| CN205279439U (en) * | 2015-12-30 | 2016-06-01 | 石家庄合汇化工有限公司 | Conduction oil electromagnetic heating device is used in ethylenediamine heating |
| CN107560182A (en) * | 2017-10-09 | 2018-01-09 | 荆门宏图特种飞行器制造有限公司 | Hotline heater |
| CN206959337U (en) * | 2017-06-15 | 2018-02-02 | 天津滨海新区大港圣益油脂有限公司 | A kind of hot oil heater of anti-coking |
| CN207922566U (en) * | 2018-03-06 | 2018-09-28 | 哈尔滨千安庆防爆电热电气有限公司 | A kind of electric heater for heat conduction oil |
-
2018
- 2018-03-06 CN CN201810183543.XA patent/CN108224776B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202101407U (en) * | 2011-06-03 | 2012-01-04 | 上海中锂实业有限公司 | Heating and cooling integrating heat-conducting oil electric heating equipment |
| CN102518589A (en) * | 2012-01-10 | 2012-06-27 | 合肥通用机械研究院 | Leakless high-temperature hot oil medium delivery pump |
| CN203586528U (en) * | 2013-12-12 | 2014-05-07 | 龙山红日锅炉有限公司 | Heat transfer oil electric heating furnace for cooking use |
| CN204460715U (en) * | 2015-02-09 | 2015-07-08 | 南阳医学高等专科学校 | A kind of chemical laboratory heating boiler |
| CN205279439U (en) * | 2015-12-30 | 2016-06-01 | 石家庄合汇化工有限公司 | Conduction oil electromagnetic heating device is used in ethylenediamine heating |
| CN206959337U (en) * | 2017-06-15 | 2018-02-02 | 天津滨海新区大港圣益油脂有限公司 | A kind of hot oil heater of anti-coking |
| CN107560182A (en) * | 2017-10-09 | 2018-01-09 | 荆门宏图特种飞行器制造有限公司 | Hotline heater |
| CN207922566U (en) * | 2018-03-06 | 2018-09-28 | 哈尔滨千安庆防爆电热电气有限公司 | A kind of electric heater for heat conduction oil |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114061145A (en) * | 2021-11-12 | 2022-02-18 | 盐城市中然机械有限公司 | Protective device for heat conduction oil heater |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108224776B (en) | 2024-03-19 |
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