CN2240040Y - Electrical heating film type crude oil heater - Google Patents
Electrical heating film type crude oil heater Download PDFInfo
- Publication number
- CN2240040Y CN2240040Y CN 95220546 CN95220546U CN2240040Y CN 2240040 Y CN2240040 Y CN 2240040Y CN 95220546 CN95220546 CN 95220546 CN 95220546 U CN95220546 U CN 95220546U CN 2240040 Y CN2240040 Y CN 2240040Y
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- CN
- China
- Prior art keywords
- heating film
- insulating layer
- electrical heating
- layer
- radiant heating
- 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.)
- Expired - Fee Related
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 50
- 239000010779 crude oil Substances 0.000 title claims abstract description 23
- 239000003208 petroleum Substances 0.000 claims description 14
- 238000009413 insulation Methods 0.000 claims description 8
- 239000012528 membrane Substances 0.000 claims description 7
- 230000005855 radiation Effects 0.000 claims description 6
- 238000004078 waterproofing Methods 0.000 claims description 6
- 238000009830 intercalation Methods 0.000 claims description 3
- 230000002687 intercalation Effects 0.000 claims description 3
- 230000011218 segmentation Effects 0.000 claims description 3
- 239000003921 oil Substances 0.000 abstract description 15
- 239000004020 conductor Substances 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 24
- 238000000034 method Methods 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000003129 oil well Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 3
- 230000008021 deposition Effects 0.000 description 3
- 238000005485 electric heating Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012774 insulation material Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
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- Resistance Heating (AREA)
Abstract
The utility model relates to an electrical heating film type crude oil heater, which directly heat the oil delivery pipe 2 of the producing well of an oilfield. The utility model has the advantages of high efficiency and less investment. An insulating layer 5 is painted on the oil delivery pipe 2 which is used as a circuit zero line. The upper segment of the insulating layer 5 is painted with an electrical heating film 6. The two ends of the electrical heating film 6 are mutually contacted with the body of the oil delivery pipe 2. The body of the electrical heating film is orderly covered (painted) with an insulating layer 3, a radiant heat reflecting layer 10, an insulating heat insulating layer 13 and a waterproof layer 12. The end part of each layer is provided with a waterproof cap 4. An electrode 7 which is accessed into an electrical source control box 16 by a conductor is embedded into the electrical heating film 6. A temperature sensor is inserted into the body of the oil delivery pipe 2 and is accessed into the electrical source control box 16 by a feeder line. The utility model can realize the self control of a heating temperature. When a power is switched on, current enters an electrical heating film to convert into a heat energy to heat crude oil in a pipe by an electrode.
Description
The utility model relates in oilfield exploitation and the defeated process of collection, for avoiding the heater of wax deposition and reduction flow resistance.
The oil field is in the exploitation and the defeated process of collection of crude oil (oil), for avoiding wax deposition and reducing flow resistance, the normal method that adopts two-tube companion's heat to mix hot water, promptly build the water heater of combustion gas (oil) at terminal, water is heated to 85～90 ℃, transports to fuel-displaced well head, add in the oil pipeline through the water mixing valve by pipe special, improving crude oil temperature to more than the wax deposition point, but there is following problems in this technology:
1. adopt water heater and transmission pipeline network, increase initial investment;
2. owing to the delivery distance, thermal loss is many on the way, and energy waste is big;
3. flow process complexity, on-the-spot use and management inconvenience;
4. expend height.
The purpose of this utility model is to avoid above-mentioned deficiency of the prior art, and a kind of outer electrothermal membrane type Crude oil heater of petroleum pipeline that is wrapped in is provided, and makes crude oil obtain heating when carrying, and can save investment.
The purpose of this utility model can reach by the following technical programs: have making on the oil transportation body of circuit zero line bag to scribble insulating layer, segmentation is with the tubular Electric radiant Heating Film on this insulating layer, and the two ends of Electric radiant Heating Film contact with above-mentioned oil transportation body; The external bag in regular turn of Electric radiant Heating Film scribbles insulating layer, reflect radiation heat layer, thermal insulation layer and waterproofing course, and there is tarpaulin each layer end; Intercalation electrode inserts in the power controling box with lead in the above-mentioned Electric radiant Heating Film, is inserted with temperature pick up in the outlet of oil transportation body, inserts in the power controling box with feeder line.
Embed 2 in the above-mentioned Electric radiant Heating Film and be connected in parallel on the lead, be added on the petroleum pipeline when energising back Electric radiant Heating Film is converted into heat energy with electric energy with top electrode, at other under each layer safeguard measure, with the heating crude oil in the petroleum pipeline, the realization purpose of design.
The utility model is compared with above-mentioned prior art can have following effect: owing to adopt directly heating, simple in structure, intermediate link is few, reduces energy consumption, has only the former 40%, saves investment.
Accompanying drawing 1 is the utility model complete section face diagrammatic sketch.
Below in conjunction with accompanying drawing will the utility model is described in further detail:
By shown in Figure 1, petroleum pipeline 2 is arranged, as the oil pipe in the oil well, the petroleum pipeline of surface gathering and transferring; Have to wrap on petroleum pipeline 2 bodies of making circuit zero wire electrode 8 to scribble insulating layer 5, segmentation scribbles Electric radiant Heating Film 6 on the insulating layer 5, and it is converted into heat energy with electric energy, by insulating layer 5, petroleum pipeline 2 heat is conducted to the crude oil in the pipe, and the oil temperature is risen.The two ends of Electric radiant Heating Film are in pipe 2 bodies contact (between do not have insulating layer 5); Electric radiant Heating Film 6 inside and outsides are wrapped in regular turn and are scribbled insulating layer 5,9, reflect radiation heat layer 10, thermal insulation layer 13 and waterproofing course 12, there is tarpaulin 4 end of each layer, 6 li intercalation electrodes 7 of Electric radiant Heating Film, insert power controling box 16 with lead 11, be inserted with temperature pick up on petroleum pipeline 2 bodies, insert power controling box 16 with feeder line 14.
6 li of above-mentioned Electric radiant Heating Film embed 2 and are connected in parallel on the lead with the level 7 that powers on.This lead can be embedded in 13 li on thermal insulation layer, and import and export 15,1 is arranged on the petroleum pipeline 2; The external insulating layer 9 of Electric radiant Heating Film makes and the external electrical insulation, prevents that also outside moisture content from entering simultaneously; Reflect radiation heat layer 10 be prevent heat with the form of radiation to external diffusion; Insulating interlayer 13 has outside the heat-insulation and heat-preservation effect, can also cushion external force, avoids inner impaired, and is simultaneously that the ampere wires protection is fixing; Outermost layer waterproofing course 12 also is the shell of electric heater, and there is protective effect inside; Temperature pick up is the port of export that inserts petroleum pipeline 2, makes this outer crude oil temperature value be converted to the corresponding signal of telecommunication and sends into control cabinet 16; Power controling box 16 has the display temperature controller table, and is furnished with the wireless remotecontrol electronic password lock, reaches the antitheft standard of A level, shows to be heated crude oil temperature the break-make that control enters the electric heater electric current.
The Electric radiant Heating Film of using in the electrothermal membrane type Crude oil heater is a kind of compound semiconductor resistor exothermic material, and its heating commercial weight is followed the universal law of resistance heating, according to Ohm's law I (electric current=U (voltage)/R (resistance) and electrical power definition P (power)=U
2/ R as can be known, at Electric radiant Heating Film supply voltage one regularly, the own resistance of heating power and Electric radiant Heating Film is inversely proportional to, this is to determine and adjust the Electric radiant Heating Film peak power and the foundation of high heating temp, in conjunction with oil well output (flow), the electrothermal membrane type Crude oil heater that selection is complementary directly connects (or welding) on the oil pipe of oil well down-hole or near the ground petroleum pipeline the well head, send electricity by power controling box to heater, and adjust the heating-up temperature value of setting.When the crude oil temperature at heater outlet place was lower than setting value, power controling box was opened heating current, and electric current is evenly sent into (going out) Electric radiant Heating Film by electrode, be converted to heat energy after, through inner insulating layer, the steel pipe tube wall, the crude oil that flows in the pipe is given in conduction, and its temperature is raise; When the crude oil temperature at the heater outlet place that flows through is higher than design temperature, power controling box turn-offs heater current, Electric radiant Heating Film quits work, the crude oil temperature in exit begins to descend, after the crude oil temperature in the exit of flowing through is lower than set temperature value, power controling box is opened heater current again, makes Electric radiant Heating Film get electric work.So go round and begin again, crude oil is heated to design temperature in the process of carrying, and for ensureing electrothermal membrane type Crude oil heater operate as normal, use and the used raw material to following technology carry out careful selection emphatically:
The selection of 1 Electric radiant Heating Film and film-forming process
Use obtains the electric-heating coatings of national inventing patent (patent No. 94106064.0), this coating film-forming process is simple, heating efficiency reaches more than 90%, heating temp low (below 300 ℃), long service life, reach more than 20000 hours, its heating power and heating temp can after electric-heating coatings prepares, spray to the steel tube surface after insulation is handled at normal temperatures by prescription and film forming thickness adjustment, dry back Electric radiant Heating Film, thickness is between 0.1～0.5mm.
2 electrode manufacturing and mounting processs, the firewire electrode material uses the Copper Foil of 0.1～0.2mm thickness, and making width is the circular of 5～10mm, is sleeved on the surface of the inner insulating layer of adjacent two zero wire electrodes center, and the fixing back source of welding current goes between to current feed lines; In steel tube surface, go up along its length every 80～200cm, it is wide to leave 5～10mm, is not coated with the steel pipe endless belt of insulation materials, as zero wire electrode.
3 heater performance quality, the quality that depends on insulation effect to a great extent, according to the highest heating temp of Electric radiant Heating Film is 160 ℃, so select the above insulation materials of H level, be the heat that Electric radiant Heating Film is produced, crude oil is given in conduction easily, and under the prerequisite that guarantees insulation effect, inner insulating layer thickness should be less than 0.25mm.
4 steel pipes are selected the steel pipe of oil field all size model commonly used.
5 reflect radiation heat layers use the glass fabric of metal-coated membrane to make.
6 insulatings use foamed plastic.
7 waterproofing courses use steel pipe or plastic pipe.
8 tarpaulins adopt the thermal contractible plastic of moulding to make.
In 9 power controling boxs, use electronics to transfer device, it is temp autocontrolled to realize to adjust heating current; Temperature pick up is installed in electric heater crude exports place; Because control cabinet is operated in the field, unmanned nurse, casing reaches the anti-money standard of A level, and chamber door is controlled by the wireless remotecontrol electronic password lock.
10 because the sealing function of insulating layer, waterproofing course, tarpaulin has realized that sealing is explosion-proof, and the zero wire electrode of this heater is a petroleum pipeline itself, by oil well and wellhead assembly, makes ground connection functional, does not have differential earth potential, so Electrical Safety is reliable.
Claims (2)
1 one kinds of electrothermal membrane type Crude oil heaters is characterized in that:
A has on the petroleum pipeline of making the circuit zero line (2) body bag scribble insulating layer (5), and insulating layer (5) is gone up segmentation and scribbled Electric radiant Heating Film (6), and the two ends of Electric radiant Heating Film (6) contact with pipe (2) body; Electric radiant Heating Film (6) inside and outside side is wrapped in regular turn and is scribbled insulating layer (5), (9), reflect radiation heat layer (10), thermal insulation layer (13) and waterproofing course (12), and there is tarpaulin (4) each layer end; Insulating layer (3) is connected as a single entity with (9).
B Electric radiant Heating Film (6) lining intercalation electrode (7) inserts power controling box (16) with lead (11), is inserted with temperature pick up (14) on petroleum pipeline (2) body, inserts power controling box (16) with feeder line.
2 heaters according to claim 1 is characterized in that: Electric radiant Heating Film (6) lining embeds 2 with top electrode (7), is connected in parallel on the lead (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95220546 CN2240040Y (en) | 1995-08-29 | 1995-08-29 | Electrical heating film type crude oil heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95220546 CN2240040Y (en) | 1995-08-29 | 1995-08-29 | Electrical heating film type crude oil heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2240040Y true CN2240040Y (en) | 1996-11-13 |
Family
ID=33868398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95220546 Expired - Fee Related CN2240040Y (en) | 1995-08-29 | 1995-08-29 | Electrical heating film type crude oil heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2240040Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075129A (en) * | 2013-01-25 | 2013-05-01 | 常州易控汽车电子有限公司 | Heating control system for coalbed gas wellhead pipeline |
| CN103836295A (en) * | 2014-02-24 | 2014-06-04 | 北京三兴汽车有限公司 | All-weather heat-preservation composite heating pad |
| CN104675363A (en) * | 2015-02-06 | 2015-06-03 | 常州维航节能科技有限公司 | Functional energy-saving and heat-preserving device for oil pumping pipe of oil field |
| CN106488590A (en) * | 2016-11-03 | 2017-03-08 | 江阴市国豪电热电器制造有限公司 | A kind of high anti-explosion electric heater of security performance |
-
1995
- 1995-08-29 CN CN 95220546 patent/CN2240040Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075129A (en) * | 2013-01-25 | 2013-05-01 | 常州易控汽车电子有限公司 | Heating control system for coalbed gas wellhead pipeline |
| CN103836295A (en) * | 2014-02-24 | 2014-06-04 | 北京三兴汽车有限公司 | All-weather heat-preservation composite heating pad |
| CN104675363A (en) * | 2015-02-06 | 2015-06-03 | 常州维航节能科技有限公司 | Functional energy-saving and heat-preserving device for oil pumping pipe of oil field |
| CN106488590A (en) * | 2016-11-03 | 2017-03-08 | 江阴市国豪电热电器制造有限公司 | A kind of high anti-explosion electric heater of security performance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |