38results about How to "Improve heat conversion rate" patented technology

The invention discloses a metal deposition forming method based on an ultra-high frequency induction heating technology. An ultra-high frequency induction heating power supply is utilized to generatea high frequency alternating magnetic field near an induction coil, a metal wire material is fed into the center of the induction coil, induction eddy current is generated in the metal wire material under the action of the alternating magnetic field, and the metal wire material is melted by the action of eddy current heat and is stacked layer by layer to form a metal deposition forming part. The invention further discloses a metal deposition forming device based on the ultra-high frequency induction heating technology. The metal deposition forming device based on the ultra-high frequency induction heating technology comprises an ultra-high frequency induction heating power supply, an induction coil, a wire feeding device, a metal wire material, a moving sliding block, a deposition formingpiece, a base plate, a moving platform, a guide rail, a protective atmosphere box, a protective gas cylinder, a cooler and a control system. By adopting the metal deposition forming method and devicebased on the ultra-high frequency induction heating technology, metal parts with complex structures can be rapidly formed, the heat energy conversion rate of equipment is high, the cost is low, the cost of the additive manufacturing technology can be greatly reduced, and the large-scale popularization of the additive manufacturing technology in the industrial field is facilitated.

The invention discloses an energy-saving engine and an exhaust control method for the same. The engine comprises a cylinder body and a cylinder cover, wherein the cylinder cover is arranged on the cylinder body; a main valve corresponding to the cylinder body is arranged on the cylinder cover; an intake passage and an exhaust passage are communicated at the main valve in the cylinder cover; an intake valve is arranged in the intake passage; an exhaust valve is arranged in the exhaust passage; an auxiliary exhaust valve is arranged in the main valve; an air vent corresponding to the auxiliary exhaust valve is formed in the main valve, and is communicated with the exhaust passage. According to the engine and the method, the area of the exhaust valves is enlarged, the exhaust valves are sequentially opened, and the auxiliary exhaust valve is opened first to reduce pressure, so that the opening energy consumption and the exhaust resistance of the main valve are reduced, the heat power conversion rate of the engine is increased, and a fuel is saved.

The invention belongs to the field of gas-driven air source heat pump heat supply, and in particular relates to a full heat recovery type integrated gas heat pump heat supply unit and its application. Including: internal combustion engine, transmission coupling, compressor, condenser, evaporator, flue gas waste heat recovery device, flue gas and air mixing chamber, etc.; the internal combustion engine, transmission coupling, compressor, and condenser are connected in sequence, and The evaporator is connected back to the compressor; the flue gas waste heat recovery device is arranged on the flue gas pipeline of the internal combustion engine, and the flue gas and air mixing chamber communicates with the evaporator; the heating water pipeline is divided into two paths, and the first path is sequentially connected with the condenser 1. Heat exchange is performed between the flue gas waste heat recovery devices, and after heat exchange between the second road and the internal combustion engine, it merges with the first road to supply high-temperature water to the user. The present invention abandons the limitation of gas-fired heat pump research in pursuit of comprehensive energy efficiency ratio of multi-purpose and multi-working conditions, no longer considers summer refrigeration performance coefficient and cold-heat conversion, and successfully enables the existing GHP technology to be used in the heating system with radiator as the end.

The invention belongs to the technical field of floors and discloses a preparation method and a paving process of a novel thermal floor. The novel thermal floor is composed of, sequentially from top to bottom, a UV (ultraviolet) curing layer, a wearing layer, a pattern layer, floor base materials, a bottom wire layer, a reflecting layer and a sound insulating layer, wherein the surface of the bottom wire layer is uniformly provided with a plurality of grooves filled with soft materials. The novel thermal floor is good in surface wearing resistance, impact resistance, waterproofness, cracking resistance, pollution and corrosion resistance, fire resistance and the like, and meanwhile achieves good thermal insulation to meet the demands of practical application.

The invention discloses a metal deposition forming method based on ultra-high-frequency induction heating technology, which uses an ultra-high-frequency induction heating power supply to generate a high-frequency alternating magnetic field near an induction coil, and sends a metal wire into the center of the induction coil, and the metal wire Under the action of an alternating magnetic field, an induced eddy current is generated inside the material, and the metal wire is melted by the heat of the eddy current, and piled up layer by layer to form a metal deposition molding. The invention also discloses a metal deposition forming device based on ultra-high-frequency induction heating technology, including an ultra-high-frequency induction heating power supply, an induction coil, a wire feeding device, a wire material, a moving slider, a deposition forming part, a substrate, a moving Platform, guide rail, protective atmosphere box, protective gas cylinder, cooling machine, control system. By adopting the method and device of the present invention, metal parts with complex structures can be rapidly formed, the equipment has high thermal energy conversion rate and low cost, and can greatly reduce the cost of additive manufacturing technology, which is beneficial to the large-scale promotion of additive manufacturing technology in the industrial field .

The invention provides a high temperature heat transfer oil thermal energy conversion system comprising a heat transfer oil return line, a heat transfer oil output line, a cooling water output line, acooling water return line, a cooling water output pipe branch, a cooling water return pipe branch, a cold heat transfer oil output line, a cold heat transfer oil return line, an expanded heat transfer oil output line, an expanded heat transfer oil return line, a heating system, a heat exchanger, a three-way proportional valve, an oil storage tank, an expansion oil tank, a central controller, a cooling water tower, a solenoid valve, a filter, a pressure sensor, a temperature sensor, a flow sensor and an overflow pipe. The heat exchanger includes a first heat exchanger, a second heat exchangerand a third heat exchanger. According to the high temperature heat transfer oil thermal energy conversion system, through a technology of cooling low temperature oil by cold water and then cooling high temperature oil by the low temperature oil, the technical problem of how to cool 400 DEG C low temperature heat transfer oil is solved, the flow of the high temperature oil and the low temperature oil is controlled through the three-way proportional valve, and the temperature precision at the high temperature reaches + / -1 DEG C.