Hydrogen-oxygen mixed gas generator Specification Technical Field The present invention is the hydrogen-oxygen generator that produces hydrogen-oxygen mixture effectively from water. Background A hydrogen-oxygen mixture mixed gas generator is to produce hydrogen and oxygen from electrolyzed water; direct electric current is transferred to water containing small amount of electrolytes placed in electrolytic cell with positive and negative electrodes producing hydrogen-oxygen mixed gas, the pollution-free energy source. The mixed gas produced has a molecular ratio of hydrogen and oxygen in 2:1, and hydrogen is generated on the surface of (-) electrode in a bubble form and oxygen on the surface of (+) electrode. Hydrogen and oxygen produced can be mixed and ignited. Also, the ignition of the gas mixture does not produce any pollutant, raising itself as the new eco friendly energy source. However, because the amount of hydrogen-oxygen produced is relatively small compared to the amount of electric current transferred to (-) and (+) electrodes, additional gas, such as propane gas, is added and combusted which would result in low economical efficiency. Content of the Invention Problem to solve The invention is created to solve the above mentioned problem; to provide economical hydrogen-oxygen mixed gas generator by expanding the produced amount of hydrogen oxygen mixture compared to the amount of electricity provided. The means to solve The hydrogen-oxygen generator produced to solve the above problem contains a caliber, a metal thin walled tube (10), an insulation tube(20) inside the thin walled tube (10), 1 electrolyte plate unit(30) composed of multiple electrolyte plates(31) with multiple holes and loops with certain thickness(32) placed in the insulation tube (20) in alternative order; at the lower front for the thin walled tube (10), frontal cover(40) which contains frontal inlet(41) is formed and at upper front, frontal outlet(42); The frontal insulator (45) which disconnects electricity between the frontal cover (40) and the thin walled tube (10); the rear cover (50) containing rear inlet (51) at the lower rear of the thin walled tube(10) and rear outlet(52) at the upper rear of the thin walled tube; the rear insulator (55) to disconnect the electricity between the rear cover (50) and the thin walled tube (10); heat-protective plate (60) covered in multiple heat-protective pins(62). The Effect According to the developed hydrogen-oxygen mixed gas generator, the thin walled tube with the insulator, the multiple electrolyte plates with multiple holes in the insulator, the front and rear covers at the front and rear of the thin walled tube, and the heat-protective plate in the insulator can increase the amount of hydrogen-oxygen mixed gas produced relative to the amount of electricity provided; therefore, the gas can be combusted without adding any additional gas, such as propane gas, increasing the economical efficiency. Also, hydrogen and oxygen are formed in bubble forms, making them easy to remove from the electrodes. As a result, the surface area of the electrodes is enlarged, amplifying the electrolysis efficiency. The specific content for the practice of the invention The following explanations are based on the diagrams attached. Diagram 1 is the whole picture of the hydrogen-oxygen generator, the diagram 2 is the disjointed picture of the generator, and the diagram 3 is the sectional view along the diagram l's III-III. As pictured, the invention contains a caliber, a metal thin walled tube (10), an insulation 2 tube(20) inside the thin walled tube (10), electrolyte plate unit(30) composed of multiple electrolyte plates(3 1) with multiple holes and loops with certain thickness(32) placed in the insulation tube (20) in alternative order; at the lower front for the thin walled tube (10), frontal cover(40) which contains frontal inlet(41) is formed and at upper front, frontal outlet(42); The frontal insulator (45) which disconnects electricity between the frontal cover (40) and the thin walled tube (10); the rear cover (50) containing rear inlet (51) at the lower rear of the thin walled tube(10) and rear outlet(52) at the upper rear of the thin walled tube; the rear insulator (55) to disconnect the electricity between the rear cover (50) and the thin walled tube (10); heat-protective plate (60) covered in multiple heat-protective pins(62). The 1" thermal conduction plate (70) is formed between the thin walled tube (10) and the insulator (20) to transfer the heat produced by electrolysis is effectively to the thin walled tube (10) through the insulator (20). The 2 thermal conduction plate (80) is also formed between the heat protective plate (60) and the thin walled tube (10) to deliver the heat from the thin walled tube (10) to the heat-protective plate (60). The thin walled tube (10) can be in any shape, circular, rectangular, hexagonal and so on, and can be formed by metals such as stainless or alloy steel. In the invention explained above, the thin walled tube (10) is in a circular shape and has frontal and rear flanges (1Oa) (1Ob) on both sides. This tube (10) would be the body of the product. The insulator (20), adhered inside the thin walled tube (10), insulates the insulator (20) and the electrolyte plate (30). The insulator is favorably composed of materials unaltered by water, such as Teflon rubber, acetal, or PP, PE substances. In the product, the electrolyte plate (31) on the electrolyte unit (30) has separately formed upper holes (31a) and lower holes (31b) on the upper and lower side on the electrolyte plate. Also the loops (32) has same diameter as the electrolyte unit and the multiple electrolyte units are separated. In our example, the diameter for both components is 3mm. Above mentioned the upper holes (31a) and the lower holes (31b) reciprocally placed to 3 each other and each form a cylinder on the electrolyte plates. The electrolyte plate (31) should be made of material that can effectively perform electrolysis. An example would be carbon nanotube alloy steel. Carbon nanotube alloy steel is made from powered carbon nanotube mixed with nickel, tourmaline in powder form, and is compressed in electrolyte plate form before firing processes. At this phase of process, decarboxylase sodium compound can be added and the firing process is processed at about 1300'C. The electrolyte plate (31) can be formed by stainless steel and goes through nano polishing to help electrolysis and separate produced hydrogen-oxygen bubbles. The electrolyte plate (31) is made of stainless steel or alloy steels. Nano-polishing means polishing the surface of electrolyte plate (31) by nano-units. Through nano-polishing, the friction on the electrolyte plate (31) surface can be minimized, making hydrogen and oxygen bubbles to be easily separated. Especially when the substances decrease from bulk status to nano-unit, technical, thermal, electrical, magnetic, and optical properties are altered, making electrolysis on water easier. Tourmaline catalyst can be attached on the surface of electrolyte plate (31). Tourmaline catalyst is made when tourmaline is powdered in to micro to nano- units, fired at about 1300'C and glued on the electrolyte plate (31). Tourmaline is a mineral under hexagonal system that has same structure as crystal; it produces massive amount of anion and electricity through friction, and catalyzes the electrolysis resulting in greater amount in hydrogen and oxygen. The tourmaline is materialized as a catalyst the can expand its area to contact with water, and this tourmaline catalyst can catalyze the water's electrolysis by attaching it to the electrolyte plate (31). The frontal cover (40) is jointed with frontal flange (1Oa) by the frontal insulator (45), bolts (B), and nuts (N) place on the thin walled tube (10). Water flows inward through the frontal inlet (41) at the lower part of the frontal cover (40) and hydrogen-oxygen 4 mixed gas goes out through the frontal outlet (42) on the upper part of the frontal cover (40). Also, the terminal (40a) is formed on the frontal cover (40) to connect wires to turn the generator on and off. The rear cover (40) is jointed with rear flange (10b) by the rear insulator (55), bolts (B), and nuts (N) place on the thin walled tube (10). Water flows inward through the rear inlet (51) at the lower part of the rear cover (50) and hydrogen-oxygen mixed gas goes out through the rear outlet (52) on the upper part of the rear cover (40). Also, the terminal (40b) is formed on the rear cover (50) to connect wires to turn the generator on and off. The frontal and rear covers (40) (50) seals the both sides of the thin walled tube (10) and plays a negative and a positive poles. To accomplish these roles, frontal and rear covers (40) (50) each should be insulated wit the metal thin walled tube (10), the frontal and the rear insulators, insulate the covers (40) (50), from the tube (10). The frontal insulator (45), as drawn in diagram 2 and 3, includes frontal insulating gaskets (45a) between the frontal cover (40) and the frontal flange (10a), the multiple frontal insulating tubes (45b) in the tubes formed on the frontal cover (40) and frontal flange (10a), and the frontal insulating loop (45c) adhered to the frontal cover (40) and frontal flange (1Oa) by bolts (B) and nuts (N). The rear insulator (55), as drawn in diagram 2 and 3, includes rear insulating gaskets (55a) between the rear cover (50) and the rear flange (10b), the multiple rear insulating tubes (55b) in the tubes formed on the rear cover (50) and rear flange (10b), and the rear insulating loop (55c) adhered to the rear cover (50) and rear flange (10b) by bolts (B) and nuts (N). The heat-protective plate (60) is composed of the heat-protective tube (61) on the thin walled tube (10) between the frontal and rear cover (40) (50) and the multiple heat protective pins (62) placed on the heat-protective tube (61) separately. The heat protective tube (61) and heat-protective pins (62) are made from whole aluminum tube 5 or stainless tube processed by machines such as NC, castling, or by forming heat resistant plastic or ceramic. However, in forming the heat-protective plate (60), the heat protective tube (61) and heat-protective pins (62) can be made separately and combined later. Further, to increase the heat resistant, carbon nano-tube and tourmaline catalyst can be applied alone or together on the surface of heat-protective pins (62). The 1" thermal conduction plate (70) helps the heat produced through electrolysis can be delivered to the thin walled tube (10) through the insulator (20). The 2"d thermal conduction plate (80) helps the transferred heat to the thin walled tube (10) can be conducted to the heat-protective plate (60). To go through these steps, the 1" and 2 nd thermal conduction plate are materialized by carbon nano-tube and tourmaline catalyst in nanometer size, preferably 10-60 nanometer, are applied alone or together. According to the structure, if more than 200V of electric current is injected to the terminals (40a) (50a) on frontal and rear cover (40) (50) while the water flows inward through the frontal inlet 941) and the rear inlet (51), then the + and - electric charges on separated electrolytic plates (31) come together and the magnetic field occurs on the electrolytic plate (31). The electrolyzing space at the time is magnetic, so the size of the electrolyzing space will enlarge relative to the number of the electrolyte plate (31), which would electrolyze effectively, producing more hydrogen and oxygen. The hydrogen and oxygen produced is mixed and exhausted through upper holes (3 1b) and front and rear outlets (42) (52). The invention is explained through the example on diagrams, however, is just an example, and anyone with appropriate knowledge in the field would understand that there can be many variations may apply. Simple explanations on diagrams Diagram 1 is the whole sketch of the hydrogen-oxygen mixed gas generator. Diagram 2 is the more detailed and disassembly of diagram 1 Diagram 3 is the sectional view along the diagram l's III-III 6 The important symbols on the diagrams 10 - Thin walled tube 10a - frontal flange 1 Ob - rear flange 20 - Insulator 30 - Electrolyte unit 31 - Electrolyte plate 32 - Separated loops 40 - Frontal cover 41 - Frontal inlet 42 - Frontal outlet 45 - Frontal insulator 45a - frontal insulating gasket 45b - frontal insulating tube 45c - frontal insulting ring 50 - Rear cover 51 - Rear inlet 52 - Rear outlet 55 - Rear insulator 55a - rear insulating gasket 55b - rear insulating tube+ 55c - rear insulting ring 60 - heat-protective plate 61 - heat-protective tube 62 - heat-protective pin 70 - 1" thermal conduction plate 80 - 2 "d thermal conduction plate 7