CN101674687B - Inner membrane tubular electrothermal device and production method - Google Patents
Inner membrane tubular electrothermal device and production method Download PDFInfo
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- CN101674687B CN101674687B CN2008102122703A CN200810212270A CN101674687B CN 101674687 B CN101674687 B CN 101674687B CN 2008102122703 A CN2008102122703 A CN 2008102122703A CN 200810212270 A CN200810212270 A CN 200810212270A CN 101674687 B CN101674687 B CN 101674687B
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Abstract
The invention discloses an inner membrane tubular electrothermal device and a production method. The structure of the electrothermal device comprises a nonmetal tubular electrothermal tube, an external connecting piece, a sealing element, an extruding nut, an electrode leading-out component, an annular heat insulating part, an elastic electrode squeezing part, butterfly expansion parts, an expansion nut, an expansion screw, a damp-proof sealing element, a sealing nut, a temperature controller, an electrode wire and the like. The production method thereof comprises: after placing an electrode leading-out assembly comprising two butterfly expansion parts, the elastic electrode squeezing part, the annular heat insulating part, the electrode leading-out component, the expansion screw, the expansion nut, the temperature controller and the electrode wire in a tubular electrothermal tube, inserting the electrode leading-out assembly into an externally connecting part accommodated with the sealing element, and screwing the sealing element with the extruding nut; and sealing a wire outlet of the electrode wire with the damp-proof sealing element and the sealing nut. The inner membrane tubular electrothermal device has the advantages of saving energy, protecting environment, generating no scales, along with acid and alkali resistance, safety, reliability and long service life, and can substitute for conventional metal heating elements and be widely applied to home appliances and products and equipment used for heating liquid in the industrial field.
Description
Affiliated technical field
Inner membrane tubular electrothermal device of the present invention and production method thereof are to belong to add hot water and heating electroplating bath, printing and dyeing groove in the household electrical appliances series such as civilian electric boiler, electric water boiler, electric heater, cold, hot two-purpose water dispenser, and other fill energy-efficient, rational in infrastructure, not scaling, acid-alkali-corrosive-resisting, safe and reliable, long service life, new-type heat power supply device of environment-friendly type that manufacturing cost is moderate and preparation method thereof of corrosive liquids in the industrial equipments such as acid, akaline liquid groove.
Background technology
Have more than 100 year historical heating wire element; So far monopolizing resistance-type heater industry; Particularly in heating liquid state object industry, account for the empery status; About electric boiler, electric heater, boiler, water dispenser, electroplating bath, printing and dyeing groove more than 96%, and other fill in the equipment such as acid, akaline liquid groove, adopting heating wire is that the electrothermal tube processed of electric heating body is as heater.The power density of this heater is usually up to 30-80 watt/square centimeter; Energising heating under high like this power density; A series of performance deficiencies that are difficult to overcome have been caused; As: power consumption is high, the life-span is lacked (working life only 2000-5000 hour), the porcelain incrustation scale is tied on the electrothermal tube surface when adding hot water, and the heat that the porcelain incrustation scale stops Electrothermic wire to send is dispersed into rapidly in the heated water, makes heating wire working temperature excess load; Cause fracture of heating wire overtemperature or the explosion of electrothermal tube overtemperature, cause the electric leakage accident simultaneously.
From the heating principle and the structural analysis of resistance-type heater, the power density of its performance, life-span and heater is inversely proportional to, in other words " power density of electric heating body is low more, and its performance, life-span are just good more ".But the power density that reduces electrothermal wire heating's body just means the raising heater cost and the heater volume of several times.Production firm is in order to solve the defective on electrothermal wire heating's body performance both at home and abroad; Employing contains the special steel grade and the high hot candied fabrication techniques heating wire of heating wire of precision of refractory metal tungsten, molybdenum, nickel etc.; Reach under the superhigh temperature state purpose that small size electrothermal wire heating body also can use for a long time.Though the calandria volume has lowered, the calandria cost exceeds tens times than common electrical heated filament heater, and when adding hot water the electrothermal tube surface constantly scaling be used to heat the difficult problem that coat of metal is corroded when having corrosive liquids and still can't solve.This is the electricity heating industry unsolved always technical barrier that continues into the present.Provided a kind of novel electric boiler heating element that does not adopt heating wire as electric heating body in order to solve this difficult problem patent ZL200520011790.X; Adopted heat-resistant glass tube as the tubulose ground; Outer surface at the tubulose ground prepares interface combination electrode, the compound porcelain electrothermal layer of face in succession; Be connected with power supply through electrode retaining collar card, electrode retaining collar card screw, be intended to obtain energy-conservation (more than 30%), long-life (more than 100,000 hours), start fast, rational in infrastructure, electric boiler glass tube heating element that manufacturing cost is extremely low.But this electric boiler heating element can only be in the heating element body is flow through in heating use in the device systems of liquid (body in to be heated liquid mobile; The heat that heating tube sends can't in time dispel the heat; Do not reach the intended purposes of heating whole liquid); And the temperature that is heated water can not surpass 80 degree, and (temperature that is heated water in the body surpasses 80 when spending, and the instant water that contact with tube wall heats up and produces great amount of bubbles, and the pressure in the body is moment sharp increase thereupon; Finally cause the body breakage); Can't use in the equipment that does not have forced circulation system or place, more can not replace traditional electrothermal wire heating's body, be immersed in and use in the water that (outer surface of electric boiler heating element tubulose ground is provided with conductive structure bodies such as electrothermal layer, electrode; Can't guarantee safe handling), so the electric boiler heating element can't replace traditional electrothermal wire heating's body to be widely used in the electric heating industry fully.
In a word, do not change the device structure and the mode of heating (be immersed in to be heated in the liquid and heat) of original installation electrothermal wire heating body, the novel electric heating device of alternative traditional electrical heated filament heater, heating liquid shape object still fails to develop so far.
Summary of the invention
In view of the problem that exists in the above-mentioned prior art; The objective of the invention is to develop a kind of energy-efficient, non-environmental-pollution, simple in structure, cost is moderate, safe and reliable, life-span length, sanitation and hygiene, acidproof, alkaline-resisting and AC and DC electricity all can use, the brand-new type inner membrane tubular electrothermal device and the production method thereof of solid-state dirty body do not tied on the heater surface when particularly adding hot water or other liquid object.Thereby, increase a kind of electric heater unit of brand new for paddle electric heating household electrical appliances and need electroplating bath, printing and dyeing groove and other of thermal source to fill industrial equipments such as acid, akaline liquid groove such as electric boiler, electric water boiler, electric heater, cold/hot shot water machine.
Inner membrane tubular electrothermal device of the present invention; Its structure by be shaped on Electric radiant Heating Film (2) on the inwall and be arranged at that conductive electrode (3) and high temperature resistant nonmetal tubulose body electrothermal tube (1) that seals, outer connector (4), seal (5), extruding nut (6), electrode on the Electric radiant Heating Film draws that part (7), annular thermal insulation barriers (8), elastic electrode jam-packed spare (9), butterfly squeeze the part (10,11) that expands, squeeze expansion nut (17), squeeze the screw rod (12) that expands, moisture seal spare (13), sealing nut (14), thermostat (15), electrode wires (16) form; Be coated with Electric radiant Heating Film (2) on the tubular body inwall of tubular body electrothermal tube (1), Electric radiant Heating Film (2) is provided with the silver conductive electrode of the ring-type that is no less than two (3); Install additional under the room temperature environment then with the electrode of conductive electrode (3) equal number and draw assembly; It is by squeezing the crowded part (10) that expands of the butterfly fixing with squeezing the screw rod (12) that expands that the screw rod (12) that expands is upward installed that electrode is drawn assembly; Squeeze expand part (11) and two crowded parts (10 that expand of butterflies with a unfixed butterfly; 11) the elastic electrode jam-packed spare of placing in the middle of (9), go up cover at elastic electrode jam-packed spare (9) and put annular thermal insulation barriers (8) and go up the cover discharge electrode at annular thermal insulation barriers (8) and draw part (7) and be used for the crowded expansion nut (17) that the unfixed butterfly of jam-packed is squeezed the part (11) that expands; With draw the thermostat (15) that part (7) is connected with high temperature resistant wire and electrode, and the method that is extended for electrode wires (16) is made; Seal (5) is installed in outer connector (4); Draw the opening end of an assembly and a high temperature resistant tubulose body electrothermal tube (1) that seals installing electrode, be inserted in the seal (5); Twist densification sealing (5) with extruding nut (6) again, that strengthens tubular body electrothermal tube (1) and outer connector (4) is connected dynamics and sealing ability; Be through at electrode wires (16) to moisture seal spare (13), be installed in the line outlet of outer connector (4) then; Use fastening and pressurization moisture seal spare (13) sealed electrical polar curve (16) line outlet of sealing nut (14) again; Electrode wires (16) is connected with power supply; Electric current converts electric energy to heat energy through Electric radiant Heating Film (2) acting during energising, and heat energy is transmitted to the desire liquid heated that contacts with tubular body electrothermal tube (1) outer wall surface through the large tracts of land tube wall of tubular body electrothermal tube (1), and the temperature of liquid is risen rapidly; Both accomplished electric energy and transformed heat energy, thermal energy conduction is heated the rapid process that heats up of temperature of liquid to being heated liquid.
Tubular body in the tubular body electrothermal tube of the present invention (1) is shaped as a tubular structure that seals, and its material can be high-purity silicon dioxide (high silica glass or quartz), can be high-purity alpha-alumina (99 porcelain); The two ends of its tubular body structure can be isometrical or waney; Its overall diameter size range be greater than
less than
length dimension scope for greater than 50mm less than 1000mm, the pipe thickness size range is less than 8mm greater than 0.5mm.Its effect is: carry Electric radiant Heating Film (2) with conductive electrode (3), isolate and be heated mustard seed (water or other liquid) and contact with electrified body, and isolated electric current leaks into and is heated mustard seed (water or other liquid), while and efficiently is transmitted to heat energy with homalographic with Electric radiant Heating Film (2) and is heated mustard seed.
The front cover shape of sealing of tubular body electrothermal tube of the present invention (1) can be a convex spherical, can be the plane, also can be the spill sphere.
The material of outer connector of the present invention (4) comprises metal material, high temperature resistant (180 degree) nonmetal macromolecular material, installs on the internal chamber wall of tubular body electrothermal tube (1), is shaped on the internal thread screw thread that is used to screw extruding nut (6); The outer wall shape that can be shaped on the screw thread screw thread district (18) that is connected with the internal thread connector of external container on the outer wall and be convenient to tighten on the container externally the polygon afterburning district (19) that is not less than 4 limits of outer connector (4) is light face cylindric (20).Its effect is: airtight connection tubular body electrothermal tube (1), and with fill the container or the equipment that are heated mustard seed (water or other liquid) and be connected.
Fixing making with crowded part (10,11) the employing stainless steel material that expands of unfixed butterfly of the present invention, more than the little 0.5mm of internal diameter of its external diameter than tubular body electrothermal tube (1), thickness range is less than 3mm greater than 0.3mm.Its effect is: crushing clamp two butterflies squeeze to expand elastic electrode jam-packed spare (9) between the part (10,11), the external diameter of elastic electrode jam-packed spare (9) expanded and push annular thermal insulation barriers (8) and electrode is drawn part (7); Making electrode draw part (7) is connected (under the acting environment higher 1.5 times than rated voltage with the tight contact of conductive electrode (3); The virtual connection spark phenomenon does not take place), and guarantee the inconvenience for a long time of contact dynamics.
Elastic electrode jam-packed spare of the present invention (9) adopts high temperature resistant scope to make at the elastomeric material that is not less than 180 degree, and its structure can be totally enclosed annular solid, also can be the annular solid that does not seal.Its effect is: the extruding wide cut that receives two butterflies to squeeze bloated part (10,11) narrows down; External diameter expands and pushes annular thermal insulation barriers (8) and electrode is drawn part (7) with elastic force; Making electrode draw part (7) is connected (under the acting environment higher 1.5 times than rated voltage with the tight contact of conductive electrode (3); The virtual connection spark phenomenon does not take place), and guarantee that the contact dynamics remains unchanged for a long period of time.
The screw rod (12) that expands that squeezes of the present invention adopts stainless steel tube or metallic copper pipe to make.Its effect is at it crowded part (10,11) and crowded expansion nut (17) of expanding of two butterflies to be installed on one's body, and draws part (7), annular thermal insulation barriers (8), elastic electrode jam-packed spare (9), the crowded part (10,11) that expands of butterfly, squeezes expansion nut (17), thermostat (15), electrode wires (16) composition electrode assemblies with electrode.
Crowded expansion nut of the present invention (17) adopts stainless steel or metallic copper to make.Its effect is to push butterfly movable on the electrode assemblies with the mode of tightening to squeeze expand part (10) and elastic electrode jam-packed spare (9); Force that elastic electrode jam-packed spare (9) wide cut narrows down, external diameter expands and push annular thermal insulation barriers (8) and electrode is drawn part (7), make electrode draw part (7) and conductive electrode (3) closely contact be connected.
The thermostat that thermostat of the present invention (15) adopts limit for height/low temperature to close automatically/open.Its effect is thermostat (15) outage automatically when the temperature of tubular body electrothermal tube (1) self surpasses the temperature of setting; Thermostat (15) automatic recovery of power supply when the temperature of tubular body electrothermal tube (1) self drops to the temperature of setting guarantees that overtemperature fault (resistance of Electric radiant Heating Film changes during superhigh temperature) does not take place tubular body electrothermal tube (1).
Annular thermal insulation barriers of the present invention (8) adopts high temperature resistant scope to make in the inorganic heat insulation cloth that is being not less than 180 degree, thickness range be greater than 0.5mm less than 5mm., its structure can be totally enclosed annular solid, also can be the annular solid that does not seal.Its effect is: prevent that elastic electrode jam-packed spare (9) from directly contacting with the tubular body electrothermal tube (1) of the condition of high temperature, reduce the contact-making surface temperature that itself and electrode are drawn part (7), guarantee that the elastic force of elastic electrode jam-packed spare (9) does not go down.
The material that electrode of the present invention is drawn part (7) can be copper mesh or silver-plated non-non-ferrous metal silk screen.Its effect is: the mode with face contact links to each other with conductive electrode, and through electrode wires (16) be connected with external power source (alternating current or direct current, high-tension electricity or low-tension supply).
The elastomeric material that moisture seal spare of the present invention (13) adopts high temperature resistant scope to be not less than 180 degree is made; Be shaped as non-isometrical cylinder; Its large head external diameter is than the big 0.2mm-4mm of internal diameter of electrode wires (16) port of export of outer connector (4); Small head external diameter is than the little 0.1mm-1mm of internal diameter of outer connector (4) electrode wires (16) port of export; Establish get lines crossed hole and steam vent along the length direction of moisture seal spare (13), get lines crossed hole and steam vent the two add up and be no less than 2 and diameter and be not less than electrode wires (16) diameter.Its effect is: electrode wires (16) outlet of sealing outer connector (4) prevents that moisture, water and other materials that might damage Electric radiant Heating Film (2) from getting in the tubulose electro-heat equipment body, simultaneously the releaser internal pressure.
Electrode wires of the present invention (16) adopts high temperature resistant silica gel insulated hull, copper core conductor wire, and its effect is to connect external power source.
Sealing nut of the present invention (14) is adopting stainless steel or metallic copper or alloy to make, and its effect is an extruding moisture seal spare (13), compressing moisture seal spare (13), electrode wires (16) outlet of sealing outer connector (4) and the hole of getting lines crossed on the moisture seal spare (13).
The production method of inner membrane tubular electrothermal device of the present invention is characterized in that being accomplished by following step:
The first step: the selection wall thickness is that 1.5-6mm, diameter and length suit the requirements, be coated with Electric radiant Heating Film (2) on the inwall; Respectively be provided with the wide conductive electrode of 5-15mm (3) and a high temperature resistant nonmetal tubulose body electrothermal tube (1) that seals at the two ends of Electric radiant Heating Film (2), the roundness tolerance ± 0.8mm of pipe;
Second step: go up two butterflies of installation at the crowded screw rod (12) that expands and squeeze bloated part (10,11), one of them is fixed on an end that squeezes the screw rod (12) that expands, and another is not fixed;, two butterflies place elastic electrode jam-packed spare (9) in the middle of squeezing the part (10,11) that expands; On elastic electrode jam-packed spare (9), cover is put annular thermal insulation barriers (8), on annular thermal insulation barriers (8); The cover discharge electrode is drawn part (7); Squeeze the part (11) that expands with squeezing the movable butterfly of expansion nut (17) jam-packed, be connected electrode to thermostat (15) with the heatproof lead and draw between part (7) and the electrode wires (16), being combined into electrode, to draw assembly some.
The 3rd step: draw assembly to the electrode of a combination and be placed in the tubular body electrothermal tube (1); Be positioned at the conductive electrode (3) that closes on tubular body electrothermal tube (1) sealing part; Tighten crowded expansion nut (11) with special-purpose long-armed nut casing; The external diameter of elastic electrode jam-packed spare (9) is expanded and push annular thermal insulation barriers (8), make electrode draw part (7) and closely contact with conductive electrode (3) and be connected while power taking polar curve (16) suitable length to tubular body electrothermal tube (1) opening end with electrode is drawn part (7); Drawing assembly to the electrode of combination with same procedure is installed on interior other electrodes of tubular body electrothermal tube (1) in succession.
The 4th step: seal (5) is installed in outer connector (4); Draw the opening end of a tubular body electrothermal tube (1) that seals of assembly installing electrode, be inserted in seal (5) chamber, pass the line outlet of electrode wires (16) simultaneously from outer connector (4); With extruding nut (6) compressing sealing element (5), strengthen the bonding strength and the sealing ability of tubular body electrothermal tube (1) and outer connector (4) again; The hole get lines crossed to moisture seal spare (13) utilization through electrode wires (16), be installed in the line outlet of outer connector (4) then; Use sealing nut (14) to press moisture seal spare (13) again, sealed electrical polar curve (16) line outlet; Electrode wires (16) gives over to power supply and is connected.
The beneficial effect of the utility model
The invention provides a kind of production method of inner membrane tubular electrothermal device, the present invention has following distinguishing feature:
1, the present invention adopts high-purity silicon dioxide (more than 99%) to be the tubular body material of tubular body electrothermal tube (1); Have that heat-resistant impact ability is strong, good insulating, high voltage withstanding property are extremely strong, anticorrosive property by force, characteristics (adopt structures such as antidetonation, protecting against shock, can avoid the frangible weakness of tubular body) such as scaling not;
2. maximum characteristics of the present invention are; Be converted into electric energy the Electric radiant Heating Film (2) of heat energy; Be plated in only having on the tubular body inwall high temperature resistant, that insulating capacity is strong of sealing; Electric radiant Heating Film (2) is provided with the silver conductive electrode of the ring-type that is no less than two (3), and electrode is drawn assembly and is installed in the tubulose body cavity of tubular body electrothermal tube (1), and electrode wires (16) is drawn in the cavity by locking and closed tubular body electrothermal tube (1) that is connected of seal (5) and sealing metal nut (6) and outer connector (4); Line outlet through outer connector (4) passes, and seals line outlet with the mode that sealing nut (14) presses moisture seal spare (13).The element that Electric radiant Heating Film, conductive electrode, electrode wires etc. with electric current are easy to generate leakage current isolates with the tube wall that needs liquid heated (water or other liquid object) to be insulated the tubular body electrothermal tube (1) that ability is high, physical and chemical performance stable, temperature tolerance is extremely strong fully that (Electric radiant Heating Film does not have puncture flashover phenomenon when 3000V/min/50HZ; Under the environment of 1.5 times of rated voltages, hot leakage current is no more than 0.5mA; Cold insulation resistance is not less than 1000M Ω, and hot insulation resistance is not less than 100M Ω; Voltage endurance capability is not less than 2.5MPa; Receive+the interior high/low-temperature impact of 800 degree/-20 degree scopes, do not produce destructive material resources and change), guarantee its safe handling.
3, the electric membranous layer that is coated with on the required internal chamber wall of the tubular body of the present invention's employing; Be heating surface be again thermal conductive surface; When electric current passes through; Electric radiant Heating Film directly converts electric energy to heat energy, and through the interface (tube wall of tubular body) heat conducting mode, with heat energy directly conduction be heated liquid for the outer static or dynamic water of pipe or other; The present invention has that heating surface (area) (HS is big, power density is little, and thermally-conductive interface is big, little (idle work is few for thermal conduction resistance; Unglazed when both doing work, noiseless, electromagnetism induction reactance is few) etc. technical advantage; This is that (heating wire belongs to the point/line heat mode of non-tight contact to the incorporate efficient composite surface mode of heating that at all can't realize of electrothermal wire heating's body; The heat efficiency is lower); Realize not changing occupation mode, also can substitute traditional condition of high temperature (800 degree more than) acting down, scaling, the security performance purpose of weak traditional electrical heated filament heater relatively very easily.Above-mentioned unique technique advantage makes the present invention realize important breakthrough in overall structure and aspect of performance, and up to more than 15%, working life reached more than 100,000 hours integrated heat efficiency than traditional electrothermal wire heating's body, electrothermal tube, electric heating iron etc.
4, the present invention can realize standardization frock part; Even can make equipment and the place use that has international connected mode and size, is compatible with use traditional electrical heated filament heat-generating pipe, but also can make the serial electric heating device of different heating power, different specification size, different purposes.
5, manufacturing cost of the present invention is moderate, and 10 yuan of-18 yuan of/kilowatt elements of average out to have the extremely strong market competitiveness (can compete with traditional electrothermal wire heating's body fully in price and aspect of performance); Unique technique, superior performance, moderate manufacturing cost make the present invention in the electric heating body industry, possess the extremely strong market competitiveness and vast market prospect.The present invention will extensively substitute traditional electrothermal wire heating's body, the safety of new generation of heating liquid, the core electric heating device of energy-saving and environmental protection on industrial circles such as household appliances such as civilian electric boiler, electric heater, electric water dispenser, electric water boiler and electroplating industry, dyeing, chemical industry, food service industry.
6, manufacture process of the present invention is pollution-free; The raw material of making the tubular body electrothermal tube do not contain rare precious metal, also (traditional metal electric heated filament heater is made insulator with magnesia without the magnesia of manufacture process serious environment pollution; Produce the waste gas that magnesia need discharge serious environment pollutions such as a large amount of carbon dioxide, sulfur oxide); The raw material consumption of formation Electric radiant Heating Film is few (1kw standard electric hotting mask is only used the 2-5g raw material) also, and does not contain the goods and materials thing of contaminated environment.
In sum, in field of household appliances and commercial production field, adopt the product of manufacturing of the present invention should belong to a kind of up-to-the-minute environmental protection, energy-conservation, safety-type product, it is used widely and will produce huge economic benefit and positive social benefit:
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Fig. 1: the structural representation of inner membrane tubular electrothermal device.
Fig. 2: screw connected outer connector (4) structural representation.
Fig. 3: non-threaded interconnection system outer connector (4) structural representation.
Fig. 4: seal (5) structural representation.
Fig. 5: extruding nut (6) part structural representation.
Fig. 6: electrode is drawn part (7) part structural representation.
Fig. 7: annular thermal insulation barriers (8) part structural representation.
Fig. 8: elastic electrode jam-packed spare (9) part structural representation.
Fig. 9: butterfly is squeezed part (10,11) the part structural representation that expands.
Figure 10; Squeeze screw rod (12) the part structural representation that expands.
Figure 11: squeeze expansion nut (17) nut
Figure 12: moisture seal spare (13) part structural representation.
Among the figure: 1. tubular body electrothermal tube, 2. Electric radiant Heating Film 3. conductive electrodes, 4. outer connector, 5. seal, 6. extruding nut; 7. electrode is drawn part, 8. annular thermal insulation barriers, and 9. elastic electrode jam-packed spare, 10. butterfly is squeezed the part that expands, and 11. butterflies are squeezed the part that expands; 12. squeeze the screw rod that expands, 13. moisture seal spares, 14. sealing nuts, 15. thermostats, 16. electrode wires; 17. squeeze expansion nut, 18. screw thread screw thread districts, 19. polygon afterburning districts, 20. outer connectors.
Embodiment of the present invention such as accompanying drawing 1 are depicted as the structural representation of the preferential embodiment of an inner membrane tubular electrothermal device; Its structure is that the tubular body electrothermal tube (1) of tubular electrothermal device is made tubular body, Electric radiant Heating Film (2) by a high-purity with ability degree high temperature of sealing (more than 99%) earth silicon material, and the silver conductive electrode of ring-type (3) that is no less than two is formed; In tubular body electrothermal tube (1) cavity, install additional and conductive electrode (3) equal number, and the electrode at its placement location and the same place of conductive electrode (3) is drawn assembly.It is by squeezing a crowded part (10) and the crowded part of fixing with the crowded screw rod (12) that expands (11) that expands of another unfixed butterfly of expanding of butterfly that bloated screw rod (12) is upward installed that this electrode is drawn assembly; Squeeze the elastic electrode jam-packed spare of placing in the middle of the part (10) that expands (9) with these two butterflies; Overlap the annular thermal insulation barriers of putting (8) with going up at elastic electrode jam-packed spare (9); Draw part (7) with the electrode of putting at the last cover of annular thermal insulation barriers (8); Movable butterfly is squeezed the crowded expansion nut (17) of the part (11) that expands with being used for jam-packed, and draws the thermostat (15) that part (7) is connected with high temperature resistant wire and electrode, and is connected with thermostat (15) and extends to electrode wires (16) composition outside outer connector (4) line outlet.The wherein crowded screw rod (12) that expands, fixing butterfly are squeezed the part (10 11) that expands, crowded expansion nut (17) is made with stainless steel; Elastic electrode jam-packed spare (9) is made with the high temperature resistant silicon glue material; Annular thermal insulation barriers (8) is made with glass fabric, and electrode is drawn part (7) and made with 300 order copper mesh; Seal (5) is installed in the outer connector made from stainless steel (4); Draw the opening end of the tubular body electrothermal tube (1) of assembly installing electrode, be inserted in the seal (5); The extruding nut made from stainless steel again (6) is twisted densification sealing (5), and that strengthens tubular body electrothermal tube (1) and outer connector (4) is connected dynamics and sealability; Be through electrode wires (16) to moisture seal spare (13), be installed in the line outlet of outer connector (4) then, use sealing nut (14) pressurization moisture seal spare (13) sealed electrical polar curve (16) line outlet again with the high-temperature resistant rubber material; Electrode wires (16) is connected with power supply.
Operation principle of the present invention; When electrode wires (16) when being connected with external power source; Electric current makes electric energy convert heat energy to through Electric radiant Heating Film (2) and acting, and heat energy is through the large tracts of land tube wall of tubular body electrothermal tube (1); Be transmitted to the desire liquid heated that contacts with tubular body electrothermal tube (1) outer wall surface, the temperature of liquid is risen rapidly.Both accomplished electric energy and be converted into heat energy, thermal energy conduction is heated the rapid process that heats up of temperature of liquid to being heated liquid.
Claims (11)
1. inner membrane tubular electrothermal device; It is characterized in that by be shaped on Electric radiant Heating Film (2) on the inwall and be arranged at that conductive electrode (3) and high temperature resistant nonmetal tubulose body electrothermal tube (1) that seals, outer connector (4), seal (5), extruding nut (6), electrode on the Electric radiant Heating Film draws that part (7), annular thermal insulation barriers (8), elastic electrode jam-packed spare (9), butterfly squeeze the part (10,11) that expands, squeeze expansion nut (17), squeeze the screw rod (12) that expands, moisture seal spare (13), sealing nut (14), thermostat (15), electrode wires (16) form; Be coated with Electric radiant Heating Film (2) on the tubular body inwall of nonmetal tubulose body electrothermal tube (1), establish the silver conductive electrode of the ring-type that is no less than two (3) on the Electric radiant Heating Film (2); Install additional under the room temperature environment then with the electrode of conductive electrode (3) equal number and draw assembly; Electrode is drawn assembly and is squeezed the part (10) that expands and be installed on the crowded bloated screw rod (12) with one by go up a butterfly fixing with squeezing the screw rod (12) that expands of installing at the screw rod (12) that squeeze to expand; But unfixed butterfly is squeezed the part (11) that expands; Squeeze the middle elastic electrode jam-packed spare of placing (9) of the part (10,11) that expands and go up the annular thermal insulation barriers (8) that cover is put with two butterflies at elastic electrode jam-packed spare (9); Draw part (7) with the electrode of putting at the last cover of annular thermal insulation barriers (8); Be used for squeeze the to expand crowded expansion nut (17) of part (11) of the unfixed butterfly of jam-packed, and draw thermostat (15) that part (7) is connected with high temperature resistant wire and electrode and lead to external electrode wires (16) composition of outer connector (4) from thermostat; Seal (5) is installed in outer connector (4); Draw the opening end of the nonmetal tubulose body electrothermal tube (1) of assembly installing electrode, be inserted in the seal (5); Twist densification sealing (5) with extruding nut (6) again; Be installed in the moisture seal spare that passes electrode wires (16) (13) line outlet of outer connector (4); Use sealing nut (14) pressurization moisture seal spare (13) sealed electrical polar curve (16) line outlet again; Electrode wires (16) is connected with power supply; When energising; Electric current converts electric energy to heat energy through Electric radiant Heating Film (2) acting, and heat energy is through the large tracts of land tube wall of nonmetal tubulose body electrothermal tube (1); Be transmitted to the desire liquid heated that contacts with nonmetal tubulose body electrothermal tube (1) outer wall surface, the temperature of liquid is risen rapidly; Accomplish electric energy and transform heat energy, thermal energy conduction is heated the rapid process that heats up of temperature of liquid to being heated liquid.
2. inner membrane tubular electrothermal device according to claim 1; It is characterized in that tubular body electrothermal tube (1) is shaped as a tubular structure that seals, the material of the tubular body structure of tubular body electrothermal tube (1) is silicon dioxide or is aluminium oxide; The two ends of the tubular body structure of tubular body electrothermal tube (1) are isometrical or waney; The overall diameter size range of tubular body electrothermal tube (1) be greater than
less than
length dimension scope for greater than 50mm less than 1000mm, the pipe thickness size range is less than 8mm greater than 0.5mm.
3. inner membrane tubular electrothermal device according to claim 1; The front cover that seals that it is characterized in that tubular body electrothermal tube (1) is shaped as convex spherical, or is the plane, or is the spill sphere.
4. inner membrane tubular electrothermal device according to claim 1; The material that it is characterized in that outer connector (4) is a metal material, or the nonmetal macromolecular material of anti-180 degree high temperature.
5. inner membrane tubular electrothermal device according to claim 1; It is characterized in that in the outer connector (4); Tubular body electrothermal tube (1) is installed; Be shaped on the internal thread screw thread that is used to screw extruding nut (6) on the internal chamber wall of outer connector (4); The polygon afterburning district (19) that is not less than 4 limits that is shaped on the screw thread screw thread district (18) that is connected with the internal thread connector of external container on the outer wall of outer connector (4) and is convenient to tighten on the container externally outer connector (4), the outer wall shape in afterburning district (19) is light face cylindric (20).
6. inner membrane tubular electrothermal device according to claim 1; It is characterized in that: the elastic electrode jam-packed spare of holding under the arm in the middle of two butterflies squeeze to expand part (10,11) (9) outwards pushes annular thermal insulation barriers (8) with electrode is drawn part (7), and silver conductive electrode (3) is drawn part (7) with electrode and closely overlapped.
7. inner membrane tubular electrothermal device according to claim 1; It is characterized in that: fixing squeezes part (10,11) the employing stainless steel material making of expanding with unfixed butterfly; More than the little 0.5mm of internal diameter of its external diameter than tubular body electrothermal tube (1), thickness range is less than 3mm greater than 0.3mm.
8. inner membrane tubular electrothermal device according to claim 1 is characterized in that: elastic electrode jam-packed spare (9) adopts high temperature resistant scope to make at the elastomeric material that is not less than 180 degree; Elastic electrode jam-packed spare (9) is totally enclosed annular solid, or the annular solid that does not seal.
9. inner membrane tubular electrothermal device according to claim 1; It is characterized in that: annular thermal insulation barriers (8) adopts high temperature resistant scope to make in the inorganic heat insulation cloth that is not less than 180 degree; The thickness range of inorganic heat insulation cloth is less than 5mm. greater than 0.5mm; Annular thermal insulation barriers (8) is totally enclosed annular solid, or the annular solid that does not seal.
10. inner membrane tubular electrothermal device according to claim 1 is characterized in that: the material that electrode is drawn part (7) is copper mesh or silver-plated non-non-ferrous metal silk screen.
11. the production method of inner membrane tubular electrothermal device according to claim 1 is characterized in that being accomplished by following step:
The first step: the selection wall thickness is that 1.5-6mm, diameter and length suit the requirements, be coated with Electric radiant Heating Film (2) and be arranged on conductive electrode (3) and the high temperature resistant nonmetal tubulose body electrothermal tube (1) that seals on the Electric radiant Heating Film (2), the roundness tolerance ± 0.8mm of pipe on the inwall;
Second step: go up two butterflies of installation at the crowded screw rod (12) that expands and squeeze bloated part (10,11), one of them is fixed on an end that squeezes the screw rod (12) that expands, and another is not fixed;, two corresponding butterflies of protrusion direction place elastic electrode jam-packed spare (9) in the middle of squeezing the part (10,11) that expands; On elastic electrode jam-packed spare (9), cover is put annular thermal insulation barriers (8), on annular thermal insulation barriers (8); The cover discharge electrode is drawn part (7); Squeeze the part (11) that expands with squeezing the movable butterfly of expansion nut (17) jam-packed, be connected electrode to thermostat (15) with high temperature resistant wire and draw between part (7) and the electrode wires (16), being combined into electrode, to draw assembly some; The 3rd step: draw the electrode (3) that closes on sealing end that is positioned at that assembly is placed in the tubular body electrothermal tube (1) to the electrode of first combination and locate; Tighten crowded expansion nut (17) with special-purpose long-armed nut casing; Let the wide cut of elastic electrode jam-packed spare (9) narrow down; External diameter expands; The elastic electrode jam-packed spare (9) that distortion is expanded pushes annular thermal insulation barriers (8) and electrode is drawn part (7), and electrode is drawn part (7) and is connected with the tight contact of electrode (3), simultaneously power taking polar curve (16) suitable length to tubular body electrothermal tube (1) opening end; Drawing assembly to the electrode of combination with same procedure is installed on interior other electrodes of electrothermal tube (1) in succession;
The 4th step: seal (5) is installed in outer connector (4); Draw the opening end of a high temperature resistant nonmetal tubulose body electrothermal tube (1) that seals of assembly installing electrode, be inserted in seal (5) chamber, pass the line outlet of electrode wires (16) simultaneously from outer connector (4); With extruding nut (6) compressing sealing element (5), strengthen the bonding strength and the sealing ability of tubular body electrothermal tube (1) and outer connector (4) again;
The 5th step: the line outlet that is installed in the moisture seal spare that passes electrode wires (16) (13) outer connector (4); Use sealing nut (14) to press moisture seal spare (13) sealed electrical polar curve (16) line outlet again; Electrode wires (16) gives over to power supply and is connected.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102122703A CN101674687B (en) | 2008-09-08 | 2008-09-08 | Inner membrane tubular electrothermal device and production method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102122703A CN101674687B (en) | 2008-09-08 | 2008-09-08 | Inner membrane tubular electrothermal device and production method |
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| CN101674687A CN101674687A (en) | 2010-03-17 |
| CN101674687B true CN101674687B (en) | 2012-11-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008102122703A Active CN101674687B (en) | 2008-09-08 | 2008-09-08 | Inner membrane tubular electrothermal device and production method |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101856198A (en) * | 2010-04-12 | 2010-10-13 | 上海山源电子电气科技发展有限公司 | Method for prolonging service life of electrical heated tube of water dispenser under coal mine |
| CN103428910A (en) * | 2013-07-12 | 2013-12-04 | 罗日良 | Heating pipe |
| CN104270843B (en) * | 2014-09-16 | 2016-06-08 | 镇江东方电热科技股份有限公司 | Nonmetal internal spray type electric heating tube |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0056834A2 (en) * | 1981-01-22 | 1982-08-04 | Elpag Ag Chur | Method of manufacturing a module comprising a tubular heating element |
| CN2412346Y (en) * | 1999-12-22 | 2000-12-27 | 王庆琏 | Cold end tube electrothermal appts. |
-
2008
- 2008-09-08 CN CN2008102122703A patent/CN101674687B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0056834A2 (en) * | 1981-01-22 | 1982-08-04 | Elpag Ag Chur | Method of manufacturing a module comprising a tubular heating element |
| CN2412346Y (en) * | 1999-12-22 | 2000-12-27 | 王庆琏 | Cold end tube electrothermal appts. |
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| CN101674687A (en) | 2010-03-17 |
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