CN104501412A - Indirect type oil heater - Google Patents
Indirect type oil heater Download PDFInfo
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- CN104501412A CN104501412A CN201410853547.6A CN201410853547A CN104501412A CN 104501412 A CN104501412 A CN 104501412A CN 201410853547 A CN201410853547 A CN 201410853547A CN 104501412 A CN104501412 A CN 104501412A
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- heating
- heating tube
- type oil
- indirect type
- oil heater
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- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
Abstract
The invention discloses an indirect type oil heater. The indirect type oil heater comprises a heating barrel body of which an opening is sealed through a sealing plate; the heating barrel body is filled with oil; a plurality of sleeves are all of a closed barrel shaped structure are uniformly distributed in the heating barrel body; the opened ends of the sleeves are connected to the sealing plate; the plurality of sleeves are sleeved with the heating pipes by a clearance manner; the heating pipes are used for heating the sleeves by a radiating manner; the sleeves are used for heating oil in the heating barrel body by a convection manner. According to the indirect type oil heater, the sleeves internally equipped with the heating pipes are provided and used as secondary heat transfer structures to avoid direct contact of the heating pipes and the oil, and therefore, the safety and reliability are ensured; in addition, the solid heat transfer speed of the sleeves is more than the convection speed of oil; the oil can be uniformly and reliably heated after the heat transfer of the sleeves; the heating pipes do not contact with the oil, so that the convenience of dismounting and maintaining is ensured; the labor intensity of overall maintenance is reduced.
Description
Technical field
The present invention relates to the heater of transformer oil, especially relevant with the structure of indirect type oil heater.
Background technology
Usually, transformer oil needs to heat.Current is be immersed in transformer oil by heating tube directly to heat to the heating of transformer oil.Although this structure is easy to operate, there is following problem:
If the insulating materials wearing and tearing etc. on 1 heating tube surface, can cause heating tube to conduct electricity, and then make transformer oil also may conduct electricity, generation danger and temperature sharply raise.Though transformer oil is not easy fuel oil, be also flammable liquid, its flash-point is about about 160 DEG C, if heter temperature superelevation, can there is the danger of blast when transformer oil runs into naked light.
2, because heating tube is directly immersed in transformer oil, need the oil in tank body all to discharge and can dismantle heating tube when needing replacing heating tube, efficiency is very low.
If 3 heating tubes are bad or sealing leak with the sealing of heating tank body, so transformer oil will leak out, impact safety etc.
4, contact near oil product temperature with heating tube silk high, contact oil product temperature far away low, cause heating so uneven, hot-spot, oil product is easily aging, produces the harmful components etc. such as acetylene.
5, wayward oil temperature, temperature of oil in transformer is actually above 80 DEG C, the boiling point of some the volatile light components so in oil will be reduced to less than 80 DEG C under vacuum, these light components just evaporate, taken away by vacuum, such transformer oil viscosity can raise, and just becomes thickness time serious, the normal use of mobility variation influence transformer oil.
Summary of the invention
For problems of the prior art, object of the present invention for provide a kind of can the indirect type oil heater safeguarded of safe and reliable, uniform, controllable and being convenient to.
For achieving the above object, technical scheme of the present invention is as follows:
A kind of indirect type oil heater, comprise heating cylinder, the nozzle of described heating cylinder is by sealing plate block, fluid is filled with in described heating cylinder, multiple sleeve is evenly laid with in described heating cylinder, described multiple sleeve is for closing tubular structure, one end connection of opening is arranged on described sealing plate, described multiple sleeve internal clearance is arranged with heating tube, described heating tube is heated described sleeve by radiation mode, and described sleeve is heated the fluid in described heating cylinder by convection type.
Preferably, be evenly laid with deflection plate in described heating cylinder, to make, described fluid is tortuous in described heating cylinder to advance.
Preferably, the spacing of described heating tube and described sleeve is 1-2 millimeter.
Preferably, described heating tube is supported by ceramic skeleton.
Preferably, described heating cylinder connection is provided with inlet duct and outlet conduit, described outlet conduit is communicated with and is provided with fluid flow switch, to detect the flow regime of described fluid in described heating cylinder.
Preferably, on described outlet conduit, also connection is provided with temperature switch.
Preferably, on described outlet conduit, also connection is provided with pressure safety valve.
Preferably, the quantity of described sleeve and described heating tube is even number, and described multiple heating tube is all electrically connected a control system, and described control system is carried out grouping to described multiple heating tube and controlled.
Preferably, described control system controls to be divided into three phases to the heating power of described heating tube, this three phases is respectively starting stage, transition stage and stabilization sub stage, wherein during this starting stage, the heating power of described heating tube is maximum, during this transition stage, the heating power of described heating tube reduces gradually, and during this stabilization sub stage, the heating power of described heating tube is minimum.
Preferably, described heating tube is heater strip pattern heating tube.
Beneficial effect of the present invention is, the present invention compared with prior art, in the present invention, sleeve is set, in sleeve, heating tube is set, sleeve is made to serve as second heat conducting structure, heating tube is avoided directly to contact with fluid, very safe and reliable, and the solid thermal conduction of velocity of sleeve is faster than the convection velocity of fluid, by sleeve hanker turn after more evenly reliable to the heating of fluid, finally because heating tube will not fluid contact, very convenient demolition and maintenance, reduce the overall labour intensity safeguarded, the present invention has very high economy, is suitable for promoting the use of.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is described in further detail:
Fig. 1 is the structural representation of indirect type oil heater one preferred embodiment of the present invention;
Fig. 2 is the A portion structure for amplifying schematic diagram in Fig. 1.
Detailed description of the invention
The exemplary embodiments embodying feature & benefits of the present invention will describe in detail in the following description.Be understood that the present invention can have various changes in different embodiments, it neither departs from the scope of the present invention, and explanation wherein and accompanying drawing are the use when explain in itself, and is not used to limit the present invention.
As depicted in figs. 1 and 2, indirect type oil heater of the present invention comprises heating cylinder 1, and heating cylinder 1 is sealed shell of tank, and the nozzle of heating cylinder 1, by sealing plate 11 block, is filled with fluid in heating cylinder 1.
In the present invention, be evenly laid with multiple sleeve 2 in heating cylinder 1, multiple sleeve 2 is for closing tubular structure, and one end connection of opening is arranged on sealing plate 11.Be arranged in parallel between each sleeve, and all extended along tank body axial direction.
In the present invention, be arranged with heating tube 3 at multiple sleeve 2 internal clearance, heating tube 3 is 1-2 millimeter with the spacing of sleeve 2.Heating tube 3 is heater strip pattern heating tube in addition, is supported by ceramic skeleton, even if the insulating coating of heating tube silk comes off like this, disruptive conduction occurs, and heater strip also can not arrive with sleeve 2 contact internal walls, avoids fluid to conduct electricity.Every root heating tube 3 power is 3.34kW, and heating tube 3 is by radiation mode to cover, and 2 heat, and sleeve 2 is heated the fluid in heating cylinder 1 by convection type.
In a preferred embodiment, 1.5m is grown,
the process such as seamless pipe inwall wiping clean after, one end is sealed with blind plate welding, just above-mentioned sleeve 2 is defined, sleeve 2 is through in heating cylinder 1, do sealing between one end end face that it does not seal and the sealing plate 11 of heating cylinder 1 to weld, and air pressure test, complete after guaranteeing No leakage, so just the inside of guarantee heating cylinder 1 is with external environment condition without directly contacting, and is finally through in sleeve 2 by heating tube 3.In the preferred embodiment, heat flow density only 0.2W/cm in sleeve 2
2.
In the present invention, be evenly laid with deflection plate 4 in heating cylinder 1, to make, fluid is tortuous in heating cylinder 1 to advance, and makes the heating of fluid more even.
In the present invention, heating cylinder 1 connection is provided with inlet duct 10 and outlet conduit 9, outlet conduit 9 is communicated with and is provided with fluid flow switch 5, to detect the flow regime of heating cylinder 1 inner fluid.Fluid flow switch 5 detects the flowing of heating cylinder 1 inner fluid, and when being static without oil or liquid, prompting stops heating, prevents dry combustion method.
In the present invention, outlet conduit 9 is also communicated with and is provided with temperature switch 6.Temperature switch 6 setting value is generally high than required heating-up temperature 5 ~ 10 DEG C, and when RTD fault, system temperature controls to lose efficacy, and now temperature switch 6 can detect temperature exceeding standard, sends instruction and stops heating, ensure the safety of oil product and equipment.
In the present invention, outlet conduit 9 is also communicated with and is provided with pressure safety valve 7.When heating is stopped, fluid stops flowing, has thermal inertia in heating cylinder 1, and static fluid can by continuation heating, and sharply thermal expansion, the pressure now exceeded can be discharged by safety valve.
In the present invention, outlet conduit 9 is also communicated with and is provided with temperature sensor 8 to detect the oil temperature in heating cylinder 1.This temperature sensor 8 can communicate with control system, thinks that this control system provides information, and this control system carries out computer heating control to heating tube 3.
In the present invention, the quantity of sleeve 2 and heating tube 3 is even number, and multiple heating tube 3 is all electrically connected a control system, and this control system is carried out grouping to multiple heating tube 3 and controlled.Both can control the heating power often organizing heating tube 3, and also can control its heating or stop heating.
In the present invention, control system controls to be divided into three phases to the heating power of heating tube 3, this three phases is respectively starting stage, transition stage and stabilization sub stage, wherein during this starting stage, the heating power of heating tube 3 is maximum, during this transition stage, the heating power of heating tube 3 reduces gradually, and during this stabilization sub stage, the heating power of heating tube 3 is minimum.
The advantage that the present invention has and beneficial effect as described below:
1, safer.In the present invention, heating tube 3 is except set temperature sensor 8 and control system control heating power and temperature, also add the multiple protectives such as temperature switch 6, fluid flow switch 5, safety valve 7, ensures the safety of oil product and equipment.
2, heat flow density is little.Its heat flow density only 0.2W/cm
2, avoid in transformer oil heating process because hot-spot causes cracking.
3, homogeneous heating.During work, the first heating muff 2 of heating tube 3, through sleeve 2 heating transformer oil again.Sleeve 2 adopts the materials such as steel, its surface heat transfer homogeneous temperature, therefore the transformer oil contacted with it is also uniform intensification.
4, change, detect heating tube 3 convenience.Because sleeve pipe 2 and the housing of heating tube 3 prop up seal welding, heating tube 3 itself without sealing relationship, so when changing, as long as remove power supply, extracts heating tube 3 out with heating cylinder 1.
5, grouping controls heating and more saves the energy.Detect oil temperature by temperature sensor 8, control system controls the size of heating tube 3 heating power in real time according to temperature parameter, can heating with full power in the firm incipient stage, after system temperature is stable, progressively can reduce heating power.
Technical scheme of the present invention is disclosed as above by preferred embodiment.The change that those skilled in the art do when should recognize the scope and spirit of the present invention disclosed in the claim do not departed from appended by the present invention and retouching, within the protection domain all belonging to claim of the present invention.
Claims (10)
1. an indirect type oil heater, comprise heating cylinder, the nozzle of described heating cylinder is by sealing plate block, fluid is filled with in described heating cylinder, it is characterized in that, multiple sleeve is evenly laid with in described heating cylinder, described multiple sleeve is for closing tubular structure, one end connection of opening is arranged on described sealing plate, described multiple sleeve internal clearance is arranged with heating tube, described heating tube is heated described sleeve by radiation mode, and described sleeve is heated the fluid in described heating cylinder by convection type.
2. indirect type oil heater as claimed in claim 1, is characterized in that, be evenly laid with deflection plate in described heating cylinder, and to make, described fluid is tortuous in described heating cylinder to advance.
3. indirect type oil heater as claimed in claim 1, it is characterized in that, the spacing of described heating tube and described sleeve is 1-2 millimeter.
4. indirect type oil heater as claimed in claim 3, it is characterized in that, described heating tube is supported by ceramic skeleton.
5. indirect type oil heater as claimed in claim 1, is characterized in that, described heating cylinder connection is provided with inlet duct and outlet conduit, described outlet conduit is communicated with and is provided with fluid flow switch, to detect the flow regime of described fluid in described heating cylinder.
6. indirect type oil heater as claimed in claim 5, is characterized in that, described outlet conduit is also communicated with and is provided with temperature switch.
7. indirect type oil heater as claimed in claim 5, is characterized in that, described outlet conduit is also communicated with and is provided with pressure safety valve.
8. the indirect type oil heater as described in as arbitrary in claim 1-7, it is characterized in that, the quantity of described sleeve and described heating tube is even number, and described multiple heating tube is all electrically connected a control system, and described control system is carried out grouping to described multiple heating tube and controlled.
9. indirect type oil heater as claimed in claim 8, it is characterized in that, described control system controls to be divided into three phases to the heating power of described heating tube, this three phases is respectively starting stage, transition stage and stabilization sub stage, wherein during this starting stage, the heating power of described heating tube is maximum, during this transition stage, the heating power of described heating tube reduces gradually, and during this stabilization sub stage, the heating power of described heating tube is minimum.
10. indirect type oil heater as claimed in claim 1, it is characterized in that, described heating tube is heater strip pattern heating tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410853547.6A CN104501412A (en) | 2014-12-29 | 2014-12-29 | Indirect type oil heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410853547.6A CN104501412A (en) | 2014-12-29 | 2014-12-29 | Indirect type oil heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104501412A true CN104501412A (en) | 2015-04-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410853547.6A Pending CN104501412A (en) | 2014-12-29 | 2014-12-29 | Indirect type oil heater |
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| CN (1) | CN104501412A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111594118A (en) * | 2020-06-30 | 2020-08-28 | 西南石油大学 | Electromagnetic heating method for improving recovery ratio of thickened oil |
| CN111594119A (en) * | 2020-06-30 | 2020-08-28 | 西南石油大学 | Method for producing oil shale through microwave step-down in-situ heating |
| CN111928489A (en) * | 2020-08-07 | 2020-11-13 | 樱花卫厨（中国）股份有限公司 | Self-adaptive method for temperature rise of gas water heater in circulating start-stop mode |
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| US4129178A (en) * | 1975-07-23 | 1978-12-12 | Hans Hucke | Heat exchange installation for heating and cooling a liquid heat carrier medium |
| CN2324939Y (en) * | 1998-05-25 | 1999-06-23 | 陆绪民 | Electric water heater |
| CN2614328Y (en) * | 2002-12-27 | 2004-05-05 | 李江生 | Oil well pipeline heater |
| CN201373573Y (en) * | 2009-03-06 | 2009-12-30 | 南阳市一通防爆电气有限公司 | Energy-saving and explosion-proof electric heater for pipelines |
| CN202126087U (en) * | 2011-03-28 | 2012-01-25 | 天津盛大电热设备有限公司 | Electric heater |
| CN202166190U (en) * | 2011-06-30 | 2012-03-14 | 韩秀峰 | Electric heating conduction oil furnace |
-
2014
- 2014-12-29 CN CN201410853547.6A patent/CN104501412A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4129178A (en) * | 1975-07-23 | 1978-12-12 | Hans Hucke | Heat exchange installation for heating and cooling a liquid heat carrier medium |
| CN2324939Y (en) * | 1998-05-25 | 1999-06-23 | 陆绪民 | Electric water heater |
| CN2614328Y (en) * | 2002-12-27 | 2004-05-05 | 李江生 | Oil well pipeline heater |
| CN201373573Y (en) * | 2009-03-06 | 2009-12-30 | 南阳市一通防爆电气有限公司 | Energy-saving and explosion-proof electric heater for pipelines |
| CN202126087U (en) * | 2011-03-28 | 2012-01-25 | 天津盛大电热设备有限公司 | Electric heater |
| CN202166190U (en) * | 2011-06-30 | 2012-03-14 | 韩秀峰 | Electric heating conduction oil furnace |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111594118A (en) * | 2020-06-30 | 2020-08-28 | 西南石油大学 | Electromagnetic heating method for improving recovery ratio of thickened oil |
| CN111594119A (en) * | 2020-06-30 | 2020-08-28 | 西南石油大学 | Method for producing oil shale through microwave step-down in-situ heating |
| CN111594118B (en) * | 2020-06-30 | 2022-04-19 | 西南石油大学 | Electromagnetic heating method for improving recovery ratio of thickened oil |
| CN111928489A (en) * | 2020-08-07 | 2020-11-13 | 樱花卫厨（中国）股份有限公司 | Self-adaptive method for temperature rise of gas water heater in circulating start-stop mode |
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Application publication date: 20150408 |
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