CN110206510A - A kind of oil-field oil pumper oil pipe electromagnetic heater - Google Patents

A kind of oil-field oil pumper oil pipe electromagnetic heater Download PDF

Info

Publication number
CN110206510A
CN110206510A CN201910596775.2A CN201910596775A CN110206510A CN 110206510 A CN110206510 A CN 110206510A CN 201910596775 A CN201910596775 A CN 201910596775A CN 110206510 A CN110206510 A CN 110206510A
Authority
CN
China
Prior art keywords
oil
water tank
electromagnetic heater
telescopic rod
electric telescopic
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.)
Pending
Application number
CN201910596775.2A
Other languages
Chinese (zh)
Inventor
周封
任冬冬
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Harbin University of Science and Technology
Original Assignee
Harbin University of Science and Technology
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Harbin University of Science and Technology filed Critical Harbin University of Science and Technology
Priority to CN201910596775.2A priority Critical patent/CN110206510A/en
Publication of CN110206510A publication Critical patent/CN110206510A/en
Pending legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B36/00Heating, cooling, insulating arrangements for boreholes or wells, e.g. for use in permafrost zones
    • E21B36/04Heating, cooling, insulating arrangements for boreholes or wells, e.g. for use in permafrost zones using electrical heaters
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17DPIPE-LINE SYSTEMS; PIPE-LINES
    • F17D1/00Pipe-line systems
    • F17D1/08Pipe-line systems for liquids or viscous products
    • F17D1/16Facilitating the conveyance of liquids or effecting the conveyance of viscous products by modification of their viscosity
    • F17D1/18Facilitating the conveyance of liquids or effecting the conveyance of viscous products by modification of their viscosity by heating

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Water Supply & Treatment (AREA)
  • Public Health (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Thermotherapy And Cooling Therapy Devices (AREA)

Abstract

The invention discloses a kind of oil-field oil pumper oil pipe electromagnetic heaters, including device noumenon, the middle part of described device ontology is equipped with water tank, the bottom end of the water tank is equipped with battery, the top of the water tank is equipped with brake box, the side of the water tank is equipped with the first electromagnetic heater box, the device can wrap up oil transportation oil pipe, and both ends are sealed, pass through electromagnetic-heating water case, device inside is allowed to generate heat, pass through the transfer principle of heat, the heat of water tank is allowed to be transmitted to inside oil pipe, to which viscous crude is carried out high-temperature process, to reduce the viscosity of viscous crude, it is quickly conveyed on oil pipeline convenient for crude oil, reduce the power of pumping unit, improve the service life of pumping unit, and it will not influence production, ensure economic benefit, the device can also be fixed in oil well by electric telescopic rod, oil can not only be reduced The weight bearing of pipe, and oil pipe can also be protected.

Description

A kind of oil-field oil pumper oil pipe electromagnetic heater
Technical field
The present invention relates to pumping unit oil pipe field, specially a kind of oil-field oil pumper oil pipe electromagnetic heater.
Background technique
When oil field is pumped using pumping unit, often cause to increase in line clogging because oil is too sticky The power of pumping unit, and also cause that pumping efficiency is low, and speed is slow, viscosity reduction cannot be carried out to the viscous crude in pumping unit oil pipe, taken out Oil it is at high cost, be used for a long time this kind of mode carry out oil pumping will cause pumping unit service life it is low, influence manufacturing schedule, cause through Ji loss, for existing petroleum pipeline in oil well during oil conveying, the weight bearing of petroleum pipeline is overweight, increases the negative of pumping unit Weight.
Summary of the invention
The purpose of the present invention is in view of the drawbacks of the prior art, providing a kind of oil-field oil pumper oil pipe electromagnetic heater, To solve the problems, such as that above-mentioned background technique proposes.
To achieve the above object, the invention provides the following technical scheme: a kind of oil-field oil pumper oil pipe electromagnetic heater, Including device noumenon, the middle part of described device ontology is equipped with water tank, and the bottom end of the water tank is equipped with battery, the top of the water tank End is equipped with brake box, and the side of the water tank is equipped with the first electromagnetic heater box, and the other side of the water tank is equipped with the second electromagnetism and adds Hot tank, one end of the water tank are welded with feed pipe, and one end of the feed pipe is fixed with the second rubber pneumatic bag set, and described second Rubber pneumatic bag is put on equipped with the second appendix, and the other end of the water tank is welded with discharge nozzle, and one end of the discharge nozzle is fixed There is the first rubber pneumatic bag set, first rubber pneumatic bag is put on equipped with the first appendix, and the top of the brake box is equipped with top cover, The both ends of the top cover are equipped with loose slot, and the both ends top of the loose slot is equipped with bolt, and the inside of the brake box is equipped with Power switch, the side of the power switch are equipped with the first micro air pump, and it is miniature that the other side of the power switch is equipped with second Air pump, the battery are equipped with power supply line, and the corner of bottom end four of the battery is equipped with the first electric telescopic rod, institute Four, the top corner for stating top cover is respectively and fixedly provided with the second electric telescopic rod, first electric telescopic rod and described second electronic The top of telescopic rod is fixed with foot pad steel plate, and oil pipe is interspersed on the discharge nozzle and the feed pipe, and first electromagnetism adds Electromagnetic coil is equipped in hot tank and second electromagnetic heater box.
As a preferred technical solution of the present invention, first electromagnetic heater box, second electromagnetic heater box and The brake box is connected with the tank weld, and the top cover and the loose slot are movably connected and pass through the bolt and consolidate It is fixed.
As a preferred technical solution of the present invention, first micro air pump and second micro air pump pass through Bolt is fixed in the brake box, and first micro air pump passes through first appendix and the first rubber pneumatic bag set It is connected, second micro air pump is connected by second appendix with second rubber pneumatic bag set.
As a preferred technical solution of the present invention, the middle part of the water tank is equipped with cavity, and the two of the water tank cavity End is weldingly connected with the feed pipe and the discharge nozzle respectively, and the first rubber pneumatic bag set passes through bolt with the discharge nozzle It is fixedly linked, the second rubber pneumatic bag set is bolted with the feed pipe to be connected.
As a preferred technical solution of the present invention, the battery is bolted on the bottom of the water tank, First electric telescopic rod is bolted on the bottom of the battery, and second electric telescopic rod passes through bolt Be fixed on the top cover, first electric telescopic rod and second electric telescopic rod with the foot pad Interal fixation phase Even.
As a preferred technical solution of the present invention, the water tank is made of stainless steel, the battery with The power switch is electrically connected, and the power switch is electrical with first micro air pump and second micro air pump respectively One end of connection, the power supply line is equipped with switch, and the switch adds with first electromagnetic heater box, second electromagnetism respectively Hot tank, first electric telescopic rod and second electric telescopic rod are electrically connected.
The beneficial effects of the present invention are: the device can wrap up oil transportation oil pipe, and both ends are sealed, and are passed through Electromagnetic-heating water case allows device inside to generate heat and allows the heat of water tank to be transmitted in oil pipe by the transfer principle of heat Portion, to reduce the viscosity of viscous crude, quickly conveys on oil pipeline so that viscous crude is carried out high-temperature process convenient for crude oil, The power for reducing pumping unit, improves the service life of pumping unit, and will not influence production, ensures economic benefit, the device is also It can be fixed in oil well by electric telescopic rod, can not only reduce the weight bearing of oil pipe, but also oil pipe can also be protected, tied Structure is simple, convenient for promoting.
Detailed description of the invention:
Fig. 1 is deployed configuration schematic diagram of the invention;
Fig. 2 is overall structure diagram of the invention;
Fig. 3 is side view of the invention;
Fig. 4 is the schematic diagram of internal structure of electromagnetic heater box of the present invention;
In figure: 1, device noumenon;2, water tank;3, the first electromagnetic heater box;4, the second electromagnetic heater box;5, brake box;6, top cover; 7, bolt;8, loose slot;9, the first micro air pump;10, the first appendix;11, discharge nozzle;12, the first rubber pneumatic bag set;13, Power switch;14, battery;15, power supply line;16, the first electric telescopic rod;17, the second electric telescopic rod;18, foot pad steel plate; 19, the second rubber pneumatic bag set;20, feed pipe;21, the second appendix;22, the second micro air pump;23, oil pipe;24, electromagnetic wire Circle.
Specific embodiment:
The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawing, so that advantages and features of the invention can be easier to Understood by those skilled in the art, so as to make a clearer definition of the protection scope of the present invention.
Embodiment 1
Fig. 1-4 is please referred to, the present invention provides a kind of technical solution: a kind of oil-field oil pumper oil pipe electromagnetic heater, including dress Ontology 1 is set, the middle part of device noumenon 1 is equipped with water tank 2, and the bottom end of water tank 2 is equipped with battery 14, and the top of water tank 2 is equipped with braking Case 5, the side of water tank 2 are equipped with the first electromagnetic heater box 3, and the other side of water tank 2 is equipped with the second electromagnetic heater box 4, and the one of water tank 2 End is welded with feed pipe 20, and one end of feed pipe 20 is fixed with the second rubber pneumatic bag set 19, and the second rubber pneumatic bag set 19 is equipped with Second appendix 21, the other end of water tank 2 are welded with discharge nozzle 11, and one end of discharge nozzle 11 is fixed with the first rubber pneumatic bag set 12, the first rubber pneumatic bag set 12 is equipped with the first appendix 10, and the top of brake box 5 is equipped with top cover 6, and the both ends of top cover 6 are all provided with There is loose slot 8, the both ends top of loose slot 8 is equipped with bolt 7, and the inside of brake box 5 is equipped with power switch 13, power switch 13 Side is equipped with the first micro air pump 9, and the other side of power switch 13 is equipped with the second micro air pump 22, and battery 14 is equipped with power supply Line 15, the corner of bottom end four of battery 14 are equipped with the first electric telescopic rod 16, and four, the top corner of top cover 6 is solid Surely there is the second electric telescopic rod 17, the top of the first electric telescopic rod 16 and the second electric telescopic rod 17 is fixed with foot pad steel plate 18, oil pipe 23 is interspersed on discharge nozzle 11 and feed pipe 20, is equipped in the first electromagnetic heater box 3 and the second electromagnetic heater box 4 Electromagnetic coil 24.
First electromagnetic heater box 3, the second electromagnetic heater box 4 and brake box 5 are weldingly connected with water tank 2, top cover 6 and activity Slot 8 is movably connected and is fixed by bolt 7.
First micro air pump 9 and the second micro air pump 22 are bolted in brake box 5, the first micro air pump 9 It is connected by the first appendix 10 with the first rubber pneumatic bag set 12, the second micro air pump 22 passes through the second appendix 21 and the second rubber Glue Air sac cover 19 is connected.
The middle part of water tank 2 is equipped with cavity, and the both ends of 2 cavity of water tank are weldingly connected with feed pipe 20 and discharge nozzle 11 respectively, First rubber pneumatic bag set 12 is bolted with discharge nozzle 11 to be connected, and the second rubber pneumatic bag set 19 passes through bolt with feed pipe 20 It is fixedly linked.
Battery 14 is bolted on the bottom of water tank 2, and the first electric telescopic rod 16 is bolted on electric power storage On the bottom in pond 14, the second electric telescopic rod 17 is bolted on top cover 6, and the first electric telescopic rod 16 and second is electronic Telescopic rod 17 is fixedly linked with foot pad steel plate 18.
Water tank 2 is made of stainless steel, and battery 14 and power switch 13 are electrically connected, power switch 13 respectively with First micro air pump 9 and the second micro air pump 22 are electrically connected, and one end of power supply line 15 is equipped with switch, and switch is electric with first respectively Magnetic heater box 3, the second electromagnetic heater box 4, the first electric telescopic rod 16 and the second electric telescopic rod 17 are electrically connected.
Working principle: a kind of oil-field oil pumper oil pipe electromagnetic heater, including device noumenon 1, water tank 2, the first electromagnetism Heater box 3, the second electromagnetic heater box 4, brake box 5, top cover 6, bolt 7, loose slot 8, the first micro air pump 9, the first appendix 10, discharge nozzle 11, the first rubber pneumatic bag set 12, power switch 13, battery 14, power supply line 15, the first electric telescopic rod 16, the Two electric telescopic rods 17, foot pad steel plate 18, the second rubber pneumatic bag cover 19, feed pipe 20, the second appendix 21, the second micro air pump 22, oil pipe 23 and electromagnetic coil 24, when use, oil pipe 23 passes through water tank 2 by feed pipe 20, from 2 other end of water tank Discharge nozzle 11 is pierced by and is connected with pumping unit, and device noumenon 1 is equipped with several, depending on the length of petroleum pipeline, every two The distance between a device noumenon 1 is 1 meter, and top cover 6 is released by demounting bolt 7 out of loose slot 8 then, then passes through electricity Source switch 13 opens the power switch of the first micro air pump 9 and the second micro air pump 22 respectively, allows the first micro air pump 9 and second Micro air pump 22 is respectively by the first appendix 10 and the second appendix 21 to the first rubber pneumatic bag set 12 and the second rubber pneumatic bag Set 19 carries out injection gas, so that the first rubber pneumatic bag set 12 and 19 expansion of the second rubber pneumatic bag set be allowed to squeeze petroleum pipeline, plays Fixed function is sealed, then petroleum pipeline is put into oil well, by external switch, opens the first electric expansion using switch The power switch of bar 16 and the second electric telescopic rod 17 is stretched out using the first electric telescopic rod 16, the second electric telescopic rod 17, Device noumenon 1 is fixed on oil well inner wall, then again by external switch, opens the first electromagnetic heater box 3, the second electromagnetism adds The power switch of hot tank 4 allows the first electromagnetic heater box 3, the electromagnetic coil 24 in the second electromagnetic heater box 4 to generate magnetic field, utilizes Alternating current generates the changing alternating magnetic field in direction by coil, and the inside of the conductor in alternating magnetic field will will appear Vortex current, this is that eddy electric field pushes caused by carrier in conductor (being electronics of water tank and absolutely not iron atom) movement;It is vortexed The joule heating effect of electric current makes conductor heat up, to realize heating, the water in water tank 2 is allowed to be heated, and the heat in water tank is logical It crosses petroleum pipeline to be transmitted in viscous crude, allows viscous crude is heated to become sparse, aspirated convenient for oil well pump.
The device can wrap up oil transportation oil pipe, and both ends are sealed, and by electromagnetic-heating water case, allow device Inside generates heat allows the heat of water tank to be transmitted to inside oil pipe by the transfer principle of heat, so that viscous crude is carried out high temperature Processing, to reduce the viscosity of viscous crude, quickly conveys on oil pipeline convenient for crude oil, reduces the power of pumping unit, improves The service life of pumping unit, and will not influence production, ensure economic benefit, which can also be by electric telescopic rod in oil It is fixed in well, can not only reduce the weight bearing of oil pipe, but also oil pipe can also be protected, structure is simple, convenient for promoting.
Only several embodiments of the present invention are expressed for above embodiments, and the description thereof is more specific and detailed, but can not Therefore it is construed as limiting the scope of the patent.It should be pointed out that for those of ordinary skill in the art, Under the premise of not departing from present inventive concept, various modifications and improvements can be made, and these are all within the scope of protection of the present invention.

Claims (6)

1. a kind of oil-field oil pumper oil pipe electromagnetic heater, including device noumenon (1), which is characterized in that described device ontology (1) middle part is equipped with water tank (2), and the bottom end of the water tank (2) is equipped with battery (14), and the top of the water tank (2) is equipped with system The side of dynamic case (5), the water tank (2) is equipped with the first electromagnetic heater box (3), and the other side of the water tank (2) is equipped with the second electricity One end of magnetic heater box (4), the water tank (2) is welded with feed pipe (20), and one end of the feed pipe (20) is fixed with second Rubber pneumatic bag set (19), the second rubber pneumatic bag set (19) are equipped with the second appendix (21), the other end of the water tank (2) It is welded with discharge nozzle (11), one end of the discharge nozzle (11) is fixed with the first rubber pneumatic bag set (12), the first rubber gas Cuff (12) is equipped with the first appendix (10), and the top of the brake box (5) is equipped with top cover (6), the both ends of the top cover (6) It is equipped with loose slot (8), the both ends top of the loose slot (8) is equipped with bolt (7), and the inside of the brake box (5) is equipped with electricity The side of source switch (13), the power switch (13) is equipped with the first micro air pump (9), the other side of the power switch (13) Equipped with the second micro air pump (22), the battery (14) is equipped with power supply line (15), the bottom end four of the battery (14) Corner is equipped with the first electric telescopic rod (16), and four, the top corner of the top cover (6) is respectively and fixedly provided with second and electronic stretches The top of contracting bar (17), first electric telescopic rod (16) and second electric telescopic rod (17) is fixed with foot pad steel plate (18), it is interspersed with oil pipe (23) on the discharge nozzle (11) and the feed pipe (20), first electromagnetic heater box (3) and institute It states in the second electromagnetic heater box (4) and is equipped with electromagnetic coil (24).
2. a kind of oil-field oil pumper oil pipe electromagnetic heater according to claim 1, it is characterised in that: first electricity Magnetic heater box (3), second electromagnetic heater box (4) and the brake box (5) are weldingly connected with the water tank (2), described Top cover (6) and the loose slot (8) are movably connected and are fixed by the bolt (7).
3. a kind of oil-field oil pumper oil pipe electromagnetic heater according to claim 1, it is characterised in that: described first is micro- Type air pump (9) and second micro air pump (22) are bolted in the brake box (5), the first miniature gas Pump (9) is connected by first appendix (10) with the first rubber pneumatic bag set (12), second micro air pump (22) It is connected by second appendix (21) with the second rubber pneumatic bag set (19).
4. a kind of oil-field oil pumper oil pipe electromagnetic heater according to claim 1, it is characterised in that: the water tank (2) middle part is equipped with cavity, and the both ends of water tank (2) cavity are welded with the feed pipe (20) and the discharge nozzle (11) respectively Connect connected, the first rubber pneumatic bag set (12) is bolted with the discharge nozzle (11) to be connected, the second rubber gas Cuff (19) is bolted with the feed pipe (20) to be connected.
5. a kind of oil-field oil pumper oil pipe electromagnetic heater according to claim 1, it is characterised in that: the battery (14) it is bolted on the bottom of the water tank (2), first electric telescopic rod (16) is bolted on described On the bottom of battery (14), second electric telescopic rod (17) is bolted on the top cover (6), and described first Electric telescopic rod (16) and second electric telescopic rod (17) are fixedly linked with the foot pad steel plate (18).
6. a kind of oil-field oil pumper oil pipe electromagnetic heater according to claim 1, it is characterised in that: the water tank (2) it is made of stainless steel, the battery (14) and the power switch (13) are electrically connected, the power switch (13) it is electrically connected respectively with first micro air pump (9) and second micro air pump (22), the power supply line (15) One end is equipped with switch, the switch respectively with first electromagnetic heater box (3), second electromagnetic heater box (4), described the One electric telescopic rod (16) and second electric telescopic rod (17) are electrically connected.
CN201910596775.2A 2019-07-04 2019-07-04 A kind of oil-field oil pumper oil pipe electromagnetic heater Pending CN110206510A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910596775.2A CN110206510A (en) 2019-07-04 2019-07-04 A kind of oil-field oil pumper oil pipe electromagnetic heater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910596775.2A CN110206510A (en) 2019-07-04 2019-07-04 A kind of oil-field oil pumper oil pipe electromagnetic heater

Publications (1)

Publication Number Publication Date
CN110206510A true CN110206510A (en) 2019-09-06

Family

ID=67796095

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910596775.2A Pending CN110206510A (en) 2019-07-04 2019-07-04 A kind of oil-field oil pumper oil pipe electromagnetic heater

Country Status (1)

Country Link
CN (1) CN110206510A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116658121A (en) * 2023-07-31 2023-08-29 大庆世明达机械制造有限公司 Oil pipe heating blocking removing device special for oil field

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4720263A (en) * 1986-06-04 1988-01-19 Green Robert S Transportable system for providing heat to flowing materials
CN2183444Y (en) * 1993-10-19 1994-11-23 刘犹斌 Electromagnetic heating device for deep-well petroleum
CN101634219A (en) * 2009-07-08 2010-01-27 山东电力研究院 Electromagnetic heating device for oil well
CN203515479U (en) * 2013-09-11 2014-04-02 中国石油天然气股份有限公司 Well site crude oil heating device and system
CN107387022A (en) * 2017-09-11 2017-11-24 山东聊城金泰节能科技有限公司 A kind of gas well Special electromagnetic circulation tubing and casing anti-block apparatus and its application
CN107781644A (en) * 2017-11-20 2018-03-09 王珏 One kind heating oil pipeline
CN208441796U (en) * 2018-04-24 2019-01-29 福建金东矿业股份有限公司 A kind of down-hole drilling water blockoff equipment

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4720263A (en) * 1986-06-04 1988-01-19 Green Robert S Transportable system for providing heat to flowing materials
CN2183444Y (en) * 1993-10-19 1994-11-23 刘犹斌 Electromagnetic heating device for deep-well petroleum
CN101634219A (en) * 2009-07-08 2010-01-27 山东电力研究院 Electromagnetic heating device for oil well
CN203515479U (en) * 2013-09-11 2014-04-02 中国石油天然气股份有限公司 Well site crude oil heating device and system
CN107387022A (en) * 2017-09-11 2017-11-24 山东聊城金泰节能科技有限公司 A kind of gas well Special electromagnetic circulation tubing and casing anti-block apparatus and its application
CN107781644A (en) * 2017-11-20 2018-03-09 王珏 One kind heating oil pipeline
CN208441796U (en) * 2018-04-24 2019-01-29 福建金东矿业股份有限公司 A kind of down-hole drilling water blockoff equipment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116658121A (en) * 2023-07-31 2023-08-29 大庆世明达机械制造有限公司 Oil pipe heating blocking removing device special for oil field
CN116658121B (en) * 2023-07-31 2023-10-10 大庆世明达机械制造有限公司 Oil pipe heating blocking removing device special for oil field

Similar Documents

Publication Publication Date Title
CN110206510A (en) A kind of oil-field oil pumper oil pipe electromagnetic heater
CN106764214A (en) Liquid-transport pipe-line skin effect current tracing system device
CN201476264U (en) Electromagnetic induction heating component
CN113237369A (en) Electrothermal transducing device and transducing method of integrated heat storage unit
CN202188733U (en) Electromagnetic vibration microwave drying equipment
CN204648634U (en) Electromagnetic pipeline heater
CN201331129Y (en) Directly-heated type solar electromagnetic-induction intelligent heat-storage heat source device
CN202792499U (en) Preheating device for oil tank
CN202182570U (en) Electromagnetic heater
CN206310146U (en) Liquid-transport pipe-line skin effect current tracing system device
CN206884104U (en) A kind of injection machine heater
CN203757992U (en) Screw magnetic field instant water heater
CN207420774U (en) A kind of new-type hydroenergy storage station water supply installation
CN110345385A (en) A kind of oil pipeline electromagnetic heater
CN106523331B (en) Bellows hot and cold alternation electromagnetic pump
CN204384121U (en) Refinery oil tank heating device
CN206629292U (en) A kind of electromagnetic heating device
CN202018114U (en) Heat energy converter
CN211600649U (en) Intermediate frequency heating steam generating device
CN208831341U (en) A kind of anti-freezing water pump
CN2203351Y (en) Combined line-frequency skin electrothermal pumping rod
CN210951868U (en) Multipurpose electric heater
CN203257375U (en) High intermediate frequency electric heating device
CN203677980U (en) Crude phthalic anhydride preheating system
CN205227769U (en) Electromagnetism pipeline formula heating device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20190906

WD01 Invention patent application deemed withdrawn after publication