High-efficiency energy-saving heating pipe and preparation method thereof
阅读说明：本技术 一种高效节能型加热管及其制备方法 (High-efficiency energy-saving heating pipe and preparation method thereof ) 是由 蒋旭 田瑞雪 李健昱 于 2018-07-11 设计创作，主要内容包括：本发明公开一种高效节能型加热管及其制备方法,加热管包括发热膜以及在发热膜的两端分别设置有铜片、钼片、卯定螺丝和导线,其中铜片、发热膜、钼片、铜片通过卯定螺丝卯定在一起形成发热膜组合结构,两端均采用导线与钼片连接；发热膜组合结构封装于封装管中,导线穿过陶瓷接头后引出。制备方法为在发热膜两侧涂刷银浆后固化,然后将铜片、发热膜、钼片、铜片通过卯定螺丝卯定得到发热膜组合结构；两端采用导线与钼片连接；最后将发热膜组合结构放置于封装管内,采用陶瓷接头将封装管两头实现真空封装,并将导线穿过陶瓷封头引出封装管外。本发明提供的高效节能型加热管具有低电压、低能耗、环保、使用寿命长、加热速度快等优点。(The invention discloses a high-efficiency energy-saving heating pipe and a preparation method thereof, wherein the heating pipe comprises a heating film, and two ends of the heating film are respectively provided with a copper sheet, a molybdenum sheet, a riveting screw and a lead, wherein the copper sheet, the heating film, the molybdenum sheet and the copper sheet are riveted together through the riveting screw to form a heating film combined structure, and the two ends are connected with the molybdenum sheet through leads; the heating film combined structure is packaged in a packaging tube, and the lead passes through the ceramic joint and then is led out. The preparation method comprises the steps of coating silver paste on two sides of the heating film, then solidifying, and then riveting and fixing copper sheets, the heating film, molybdenum sheets and copper sheets through riveting and fixing screws to obtain a heating film combined structure; two ends of the molybdenum sheet are connected with the molybdenum sheet by adopting a lead; and finally, placing the heating film combined structure in a packaging tube, realizing vacuum packaging of two ends of the packaging tube by adopting a ceramic joint, and leading the lead out of the packaging tube by penetrating through a ceramic seal head. The high-efficiency energy-saving heating pipe provided by the invention has the advantages of low voltage, low energy consumption, environmental protection, long service life, high heating speed and the like.)
1. A high-efficiency energy-saving heating pipe is characterized by comprising a heating film, and copper sheets, molybdenum sheets, riveting screws and wires are arranged at two ends of the heating film respectively, wherein the arrangement mode is that the copper sheets, the heating film, the molybdenum sheets and the copper sheets are sequentially arranged according to the sequence, and then the copper sheets, the heating film, the molybdenum sheets and the copper sheets are riveted together through the riveting screws to form a heating film combined structure, and the two ends of the heating film combined structure are connected with the molybdenum sheets through the wires; the heating film combined structure is packaged in a packaging tube, two ends of the packaging tube are respectively subjected to vacuum packaging through ceramic joints, and the lead passes through the ceramic joints and then is led out.
2. The efficient and energy-saving heating pipe according to claim 1, wherein the heating film is a carbon material heating film.
3. The efficient energy-saving heating pipe according to claim 1, wherein the portions of the two ends of the heating film, which are combined with the copper sheet and the molybdenum sheet, are coated with silver paste layers.
4. The efficient and energy-saving heating tube according to claim 1, wherein the ceramic joint is vacuum-sealed and then a protective gas is filled in the sealed tube.
5. The efficient and energy-saving heating pipe according to claim 2, wherein the carbon material heating film is selected from any one of a graphene film, a carbon nanotube film, a carbon fiber film and a graphene-carbon fiber-carbon nanotube composite film.
6. The efficient energy-saving heating tube according to claim 1, wherein the packaging tube is any one of a quartz tube, a glass tube, a ceramic tube or an alumina tube.
7. The economizer heating tube of claim 4, wherein the protective gas is nitrogen or an inert gas.
8. The efficient and energy-saving heating pipe of claim 1, wherein the diameter of the packaging pipe is 10-100mm, and the wall thickness is 2 ~ 10 mm.
9. The high efficiency energy saving heating pipe of any one of claims 1 to 8, which is applied in the fields of electric oven, electric heating furnace, bath heater, baking varnish far infrared heating lamp, chemical heating or medical heating and disinfection.
10. A method for manufacturing a high-efficiency energy-saving heating pipe according to any one of claims 1 to 8, which comprises the following steps:
step 1, coating silver paste on two sides of a heating film and then curing;
step 2, respectively attaching two ends of the heating film solidified by the silver paste together according to the sequence of the copper sheet, the heating film, the molybdenum sheet and the copper sheet, and then riveting and fixing screws to form a whole to obtain a heating film combined structure;
step 3, connecting two ends of the heating film combined structure with molybdenum sheets by adopting wires;
and 4, placing the heating film combined structure in a packaging tube, packaging two ends of the packaging tube by adopting a ceramic joint, leading a lead out of the packaging tube by penetrating through a ceramic seal head, vacuumizing the packaging tube and filling inert gas in the packaging process.
Technical Field
The invention belongs to the field of electric heating, and particularly relates to an efficient energy-saving heating pipe and a preparation method thereof.
Background
The surface temperature of the high-temperature heating rod is 400-500 ℃, and the traditional high-temperature heating rod is made of tungsten wires and graphite. Tungsten filament heating and graphite rod heating are the main material that generates heat in the quartz heating tube at present, and voltage and power are higher, and two-dimensional graphene is novel material, has better conductivity and electric heat conversion efficiency, makes the film with graphite alkene have the texture light, intensity is high, generate heat advantage such as fast. The conventional tungsten filament heating and graphite rod heating generally need 220V voltage and 350-450W power, the voltage and the energy consumption are large, meanwhile, the heating temperature is low, the heating process time is long, the thermoelectric conversion efficiency is low, and further the service life of the material is low by adopting the method, generally about 5000 hours, so that the material utilization rate is low, and the cost is increased.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide an efficient energy-saving heating pipe and a preparation method thereof.
The invention is realized by the following technical scheme:
a high-efficiency energy-saving heating pipe comprises a heating film, and copper sheets, molybdenum sheets, riveting screws and wires are arranged at two ends of the heating film respectively, wherein the arrangement mode is that the copper sheets, the heating film, the molybdenum sheets and the copper sheets are arranged in sequence and then are riveted together through the riveting screws to form a heating film combined structure, and two ends of the heating film combined structure are connected with the molybdenum sheets through the wires; the heating film combined structure is packaged in a packaging tube, two ends of the packaging tube are respectively subjected to vacuum packaging through ceramic joints, and the lead passes through the ceramic joints and then is led out.
Furthermore, the heating film of the high-efficiency energy-saving heating pipe is a carbon material heating film.
Furthermore, the parts of the two ends of the heating film, which are combined with the copper sheet and the molybdenum sheet, are coated with silver paste layers.
Furthermore, the ceramic joint of the high-efficiency energy-saving heating pipe is vacuum-packaged, and then protective gas is filled into the packaging pipe.
Furthermore, the carbon material heating film of the high-efficiency energy-saving heating pipe can be any one of a graphene film, a carbon nanotube film, a carbon fiber film or a graphene-carbon fiber-carbon nanotube composite film.
Further, the high-efficiency energy-saving heating tube, the packaging tube is any one of a quartz tube, a glass tube, a ceramic tube or an alumina tube.
Furthermore, the protective gas is nitrogen or inert gas.
Furthermore, the diameter of the packaging pipe is 10-100mm, and the wall thickness is 2 ~ 10 mm.
The high-efficiency energy-saving heating pipe is applied to the fields of electric ovens, electric heating furnaces, bath heaters, baking varnish far infrared heating lamps, chemical heating or medical heating and disinfection.
The preparation method of the high-efficiency energy-saving heating pipe comprises the following steps:
and 4, placing the heating film combined structure in a packaging tube, packaging two ends of the packaging tube by adopting a ceramic joint, leading a lead out of the packaging tube by penetrating through a ceramic seal head, vacuumizing the packaging tube and filling inert gas in the packaging process.
According to the high-efficiency energy-saving heating pipe provided by the invention, the operation of coating silver paste on the surfaces of the copper sheet, the molybdenum sheet and the heating film is adopted, the heating film combined structure is formed together, the molybdenum sheet is used as a power-on connecting piece, good integration is realized, insulation protection at two ends of the heating pipe is realized through the ceramic joint, a specific joint power connection structure is formed through the silver paste, the copper sheet, the molybdenum sheet and the riveting screw, the effect of fixing the heating film is realized, meanwhile, the whole heating pipe can be well formed, and good heating performance is cooperatively exerted.
The heating film in the high-efficiency energy-saving heating pipe provided by the invention adopts any one of a graphene film, a carbon nano-tube film, a graphene-carbon nano-tube composite film, a graphene-carbon fiber composite film and a graphene-carbon fiber-carbon nano-tube composite film to replace the traditional tungsten wire and graphite rod, the conditions in the use process are 60-80V voltage and 150-plus-200W power, the energy consumption is effectively reduced, and the service life is more than 10000 hours.
The high-efficiency energy-saving heating pipe heating film provided by the invention has the advantages of low voltage, low power and low energy consumption, and can be rapidly heated within 10 seconds and reach a specified heating temperature (such as 400 ℃) within 20 seconds.
At present, the thermoelectric conversion efficiency of the conventional tungsten wire and graphite rod is about 70%, and the film thermoelectric conversion efficiency of the high-efficiency energy-saving heating tube provided by the invention reaches about 98%. The invention can be well applied to the fields of electric ovens, electric heating furnaces, baking varnish far infrared heating lamps, chemical heating industry, medical heating disinfection and the like.
Drawings
Fig. 1 is a schematic view of an energy-efficient heating pipe provided in
fig. 2 is a schematic view of a connection structure at one end of a heating film combination structure in the high-efficiency energy-saving heating pipe provided in
fig. 3 is a side view of a connecting structure at one end of a heating film composite structure in the high-efficiency energy-saving heating pipe provided in
in the above fig. 1-3, 1 is a heating film, 2 is a packaging tube, 3 is a ceramic joint, 4 is a silver paste layer, 5 is a copper sheet, 6 is a molybdenum sheet, 7 is a rivet screw, and 8 is a lead.
The specific implementation mode is as follows:
the following examples are provided to further assist those skilled in the art in understanding the present invention, but are not intended to limit the invention to the modifications and variations of the invention provided they do not depart from the scope of the invention.
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