CN205029901U

CN205029901U - Novel explosion -proof energy -conserving electromagnetic heating stick

Info

Publication number: CN205029901U
Application number: CN201520767146.9U
Authority: CN
Inventors: 田源; 乔书勇; 宋元礼; 王永军
Original assignee: HENAN OILFIELD YASHENG ELECTRICAL APPLIANCE CO Ltd
Current assignee: Henan Yasheng Electric Co.,Ltd.
Priority date: 2015-09-30
Filing date: 2015-09-30
Publication date: 2016-02-10
Anticipated expiration: 2025-09-30

Abstract

The utility model provides a novel explosion -proof energy -conserving electromagnetic heating stick. Electromagnetic heating stick is including leading electrical pillar, stainless steel substrate, adopt glass as insulating material through high temperature sintering process, with glass, lead electrical pillar, stainless steel substrate and melt as an organic wholely, weld it in the flange of anti -explosion terminal box bottom, formation seal chamber is connected with the barred body after passing through the bolt -up to the anti -explosion terminal box, the electromagnetic wire is arranged in wherein, is filled with heat -conducting medium in the stick, and skin weld has the heat dissipation rib, can increase hot area of contact, reduces excellent core temperature and reduces heat time, increase of service life. Through the application of synthesizing of above technological means, overcome effectively that current electromagnetic heating stick life is short, heat time is long, the shortcoming and defect of terminal oil leak, compare with prior art, the utility model has the advantages of electromagnetic heating stick terminal is difficult ageing, long service life, heating efficiency are high, and the energy consumption is low.

Description

New type explosion proof energy-saving electromagnetic heating rod

Technical field

The utility model relates to electric heating equipment, is specifically related to a kind of new type explosion proof energy-saving electromagnetic heating rod.

Background technology

The feature of current electromagnetic heating rod used is that solenoid generates an electromagnetic field the spontaneous heating of induction metal bar wall eddy current, is improve security reliability when coil runs, usually in rod, is marked with heat-conducting medium; During the work of this type of electromagnetic heating rod, inner heat-conducting medium temperature is usually at 100 ~ 200 DEG C, and ambient temperature is at-30 ~ 45 DEG C, and therefore working temperature changes between-30 DEG C ~ 200 DEG C; For market conventional electromagnetic heating rod, as shown in Figure 1, left side is the wiring of interstar connection room power supply source to its structure as shown in Figure 1, and right side is barred body heating chamber is heat-conducting medium and solenoid.

Problem both ways deposited by conventional electromagnetic heating rod, one is electrical connection arrangement and binding post between two Room, the usual way of binding post is employing is the processing technology of watering closure material with high-temperature-resistant epoxy resin, be packaged as a whole as Fig. 2 by resin is exhausted, conductive pole, base plate sleeve pipe, epoxy resin due to its physical characteristic be subject to temperature, pressure change and aging, cracking, cohesive force decline and even make that conductive pole loosens, heat-conducting medium reveals the bad phenomenon such as leakage, thus reduce product useful life, increase product later maintenance cost; Two is barred body heat dissipation problem, and electromagnetic heating rod is static firing equipment, and in rod, temperature affects very large by barred body heat transfer area, heat medium type, conductive coefficient; Because its special packaging technology is when heating dissimilar medium; in rod, heat-conducting medium volume varies with temperature and changes, and when heat medium conductive coefficient is low, heat transmission speed is slow; present high temperature, high pressure conditions pressure in rod at more than 2MPa, during shutdown, present again negative-pressure vacuum shape.

From above some, the condition of work of electromagnetic heating rod, environment for use pairs of posts, radiating mode requires higher, and therefore must meet can reliability service and Long-Time Service when pressure, temperature, mechanical strength etc. require simultaneously for binding post insulating material.

Summary of the invention

For solving and overcoming the deficiency of above-mentioned technology, the purpose of this utility model is to provide a kind of novel, reliable, efficient, long-life electromagnetic heating rod.

For this reason, the technical scheme that the utility model is taked is that described electromagnetic heating rod comprises conductive pole, stainless steel substrate, adopt glass as insulating material through high-sintering process, glass, conductive pole, stainless steel substrate are fused into one, be welded in anti-explosion terminal box flange in the bottom, anti-explosion terminal box is fastened by bolts afterwards and barred body is connected to form seal chamber; Electromagnetic wire is placed in one, and is filled with heat-conducting medium in rod, and surface soldered has cooling fin, can increase thermocontact area, reduces excellent core temperature and reduces heating time, increasing the service life.

Above-mentioned electromagnetic heating rod can be operated in the power utilization environment of power frequency 50HZ voltage AC220 ~ 1140V or intermediate frequency 100HZ ~ 40KHZ.

The utility model provides a kind of bar-shaped electromagnetic heating apparatus of efficient oil-filled type being heating principle with electromagnetic induction eddy current spontaneous heating, be specially a kind of barred body band fin (cooling fin), long-life bar-shaped electromagnetic heating rod, can be used for the new and effective electric heating equipment of all kinds of storage tank, groove pond or pipeline heating, insulation.By the integrated use of above technological means, effectively overcome that existing electromagnetic heating rod useful life is short, heating time long, the shortcoming and defect of binding post leakage of oil, compared with prior art, the utility model have electromagnetic heating rod binding post not easily aging, long service life, the efficiency of heating surface are high, the advantage that energy consumption is low.

Accompanying drawing explanation

Below in conjunction with accompanying drawing, the utility model is described further.

Fig. 1 is current electromagnetic heating rod schematic diagram.

Fig. 2 is current encapsulation binding post structure schematic diagram.

Fig. 3 is the utility model glass sintering one group of three binding post schematic diagram.

Fig. 4 is the utility model glass sintering one group of six roots of sensation binding post schematic diagram.

Fig. 5 is the utility model storage tank explosion-proof energy-saving electromagnetic heating rod barred body structural representation.

Fig. 6 is the utility model storage tank explosion-proof energy-saving electromagnetic heating bar structure schematic diagram.

In each accompanying drawing, 1. anti-explosion terminal box, 2. terminal box mounting flange, 3. heat-conducting medium, 4. barred body, 5. solenoid, 6. binding post sleeve pipe, 7. resin encapsulation block, 8. conductive pole, 9. temperature tube, 10. stainless steel substrate, 11. high temp glass bodies, the first ring flange of 12. rods, 13. oilings are chewed, 14. cooling fins, 15. coil tubes, 16. glass binding posts, 17. mounting flanges, 18. install pipe nipple, 19. cable entries.

Embodiment

As shown in Figure 6, the utility model mainly contains following 4 incorporating aspects and forms: anti-explosion terminal box 1, stainless steel glass insulating terminal 16, band cooling fin barred body 4,14, solenoid 5, heat-conducting medium 3.

Described electromagnetic heating rod comprises conductive pole, stainless steel substrate, adopt glass as insulating material through high-sintering process, glass, conductive pole, stainless steel substrate are fused into one, be welded in anti-explosion terminal box flange in the bottom during use, anti-explosion terminal box is fastened by bolts afterwards and barred body is connected to form seal chamber; Electromagnetic wire is placed in one, and is filled with heat-conducting medium in rod, and surface soldered has cooling fin, can increase thermocontact area, reduces excellent core temperature and reduces heating time, increasing the service life.

Its concrete technical scheme is as follows:

1. adopt novel encapsulated technique glass, stainless steel conductive pole, circular stainless steel substrate, fuse into one through 1050 DEG C of high-temperature oxydations, sintering in vacuum high temperature furnace after being fixed by graphite jig, and after through naturally cooling to normal temperature, adopt gas shielded arc welding to be soldered in wire connection cavity flange in the bottom during use, use as two interventricular septums and electrical connection; Novel seal, conduction are drawn connection device and are often overlapped patchboard and have 2 ~ 9 conductive poles such as not, and common wiring pattern dish is 3.

2. heater firing rate, time are from heat transfer rate formula q=-λ S (dt/dx), wherein λ is conductive coefficient, S is heat-transfer area, t is temperature x is the coordinate on thermal conductive surface, q is the density of heat flow rate transmitted in the x-direction, dt/dx is that object rate of temperature change in the x-direction (is directly proportional to temperature difference, be inversely proportional to length),-represent heat direction of transfer λ S (dt/dx) contrary to rate of temperature change direction, the speed of heat trnasfer and transmission object length is inversely proportional to, cross-sectional area is directly proportional, be directly proportional to temperature difference.Therefore increase under identical parameters and effectively can reduce heating time with the contact area of medium, and the reduction of excellent core temperature effectively can extend heating rod useful life.

3. material requirements: conductive pole, substrate all adopt the high strength of identical material, weak magnetic, corrosion-resistant technical grade 316L stainless steel, form through processes such as car, brill, milling, weldering, high temperature sinterings.The CrMn steel alloy that barred body shell adopts anti-halophile to corrode or stainless steel.

Novel storage tank explosion-proof energy-saving electromagnetic heating rod process: 1, by the explosion-proof or non-anti-explosion terminal box of standard processing, and heating barred body; 2, the terminal block after sintering is welded in and connects in box flange in the bottom; 3, cooling fin is welded by design power density outward at barred body; 4, barred body inside is fixed in by design drawing coiling solenoid.5, terminal box annex and barred body is assembled; 6, filling heat-conducting medium; 7, energizing test.

Anti-explosion terminal box 1: the connection that introducing and coil as power cable of the present utility model are drawn, stainless steel glass insulating terminal 16 and terminal box mounting flange 3 are welded as a whole, left side is power supply source wiring, and right side connects solenoid, and box body is by explosion-proof criteria design.

Stainless steel glass insulating terminal 16: the electrical connection sealed as the utility model patented product terminal box room and barred body heat-conducting medium, can bear the thermal deformation of pressure, high temperature and the self electromagnetism induction generation that in barred body, heat-conducting medium produces.

Band cooling fin barred body 4,14: as main heating, the heat transfer component of the utility model patented product, outside contacts with heat medium, and inside is high temperature heat conducting medium, solenoid magnetic field produces eddy current heat and barred body is generated heat, by cooling fin to dielectric heating.

Solenoid 5: as important electric energy, the magnetic energy conversion element of the utility model patented product, its effect power frequency or intermediate frequency power supply carry the current conversion of coming to be the AC magnetic field that changes at a high speed and to produce induction with heating tube to make its eddy-current heating.

Heat-conducting medium 3: as the heat-conducting medium of the utility model patented product, can increase coil insulation ability, prevents coil temperature too high, balance coil room temperature, make barred body generate heat evenly.

Claims

1. a new type explosion proof energy-saving electromagnetic heating rod, described electromagnetic heating rod comprises conductive pole, stainless steel substrate, it is characterized in that adopting glass as insulating material through high-sintering process, glass, conductive pole, stainless steel substrate are fused into one, be welded in anti-explosion terminal box flange in the bottom, anti-explosion terminal box is fastened by bolts afterwards and barred body is connected to form seal chamber; Solenoid is placed in one, and is filled with heat-conducting medium in rod, and surface soldered has cooling fin.