189results about How to "Improve heat storage effect" patented technology

A mortar powder containing paraffin wax for phase-change insulating is prepared from cement, light aggregate, fibres and paraffin wax through fusing paraffin wax or preparing the microcrystal powder of paraffin wax, and proportionally mixing it with others. Its advantages are low hydroscopicity and high water-proof performance and softening coefficient.

A device for warming a human body. The device is a gown that has a body with a thorax portion and a leg portion. One embodiment prevents redistribution hypothermia with a distributor attached to the inside of the leg portion. The sleeves, leg portion, and posterior of the gown are heat reflective. The anterior of the thorax portion of the gown is non-reflective. The distributor inflates when heated air is supplied. The distributor exhausts air into the gown. Temperature is maintained at a desired level for the extremities, while preventing the thorax area from being elevated to an uncomfortable level. Another embodiment is a perioperative warming device. The device is a gown that has a thorax portion and a leg portion. Each portion has an independent air chamber and inlet. The two portions are releasably connected. The sleeves, leg portion, and anterior of the gown are heat reflective.

The invention provides a fluorine salt-based nano high temperature phase change heat storage composite material, which is characterized by compounding nano material and fluorine salt material to form uniform and stable compound. The synthetic method comprises the following steps: stirring evenly fluorine salt and placing into a vacuum electric furnace; heating to a temperature which is above the phase change temperature by 50-100 DEG C; degassing and dehydrating to lead the fluorine salt in a melting state; adding nano metal particles which account for 1%-5% of the total mass to molten salt crystals; magnetically stirring the molten material for 10-60min with the heat preservation ultrasound of 10-120min; and preparing the uniform and stable fluorine salt-based nano high temperature phase change heat storage composite material. The prepared fluorine salt-based nano high temperature phase change heat storage composite material has the advantages of rapid heat storage and heat release, high heat storage density and good heat-conducting property, can be used in various fields like space station solar energy thermo-motive power generating system, solar power generation, high temperature residue heat recycling and the like, and is in particular applicable to a heat absorber of the space solar energy thermo-motive power generating system.

In a semiconductor device having a fuse 11 which makes connection between a first interconnection 10 and a second interconnection 12, and a first low heat-conductive section 13 which makes connection between the first interconnection 10 and a third interconnection 14 at a site of the first interconnection 10 where the fuse 11 is not connected, the first low heat-conductive section 13 is fabricated from a material having a heat conductivity lower than that of the material to form the first interconnection 10. When the fuse is blown with the laser beam irradiation, the heat dissipation through the heat conduction along the fuse and the interconnection is to be suppressed, and thereby a satisfactory disconnection at the fuse is to be achieved.

The invention discloses a foam heat storage regenerator and a preparation method thereof. The existing heat storage regenerators are all of direct type network structures or honeycomb structures, thereby having small surface area and non-ideal thermal storage effect, besides, due to the limitation of product forming, the shape of products cannot be too large, which has a higher requirement to application environment, therefore, the existing heat storage regenerators generally have the disadvantages of large difficulty of processing, high cost, low yield and narrow application range. The invention takes kaolin, aluminum oxide, spodumene and organic material as raw materials, the raw materials are first coated and adhered by polymer cavernous mode and then burnt and the finished products are produced. The invention has the advantages of large surface area, which is over 2000m2 / m3, good heat storage effect, large application efficiency, which is more than 90 percent, small product water absorption, which is less than 1 percent, high anti-pressure strength, large heat capacity, wide application, no limitation of system waste gas types, long service life, small processing difficulty and low cost and materials can be fully applied and comply with the environmental protection requirements.

A mortar powder containing paraffin wax for phase-change insulating is prepared from cement, light aggregate, fibres and paraffin wax through fusing paraffin wax or preparing the microcrystal powder of paraffin wax, and proportionally mixing it with others. Its advantages are low hydroscopicity and high water-proof performance and softening coefficient.

The invention discloses a graphene modified energy pile, and relates to the technical field of ground source heat pumps and pile foundations. The graphene modified energy pile comprises a pile body poured by a graphene and concrete mixture, and a hole is formed in the inner center of the pile body; a spiral pipe-shaped heat transfer pipe is arranged in the hole in the pile body, and the bottom ofthe heat transfer pipe is connected with a return pipe; the positions between the interior of the pile body and the heat transfer pipe as well as between the interior of the pile body and the return pipe are fully filled with filler, and the middle sections of the heat transfer pipe and the return pipe are bound on a reinforcement cage; heat conducting liquid is loaded in the heat transfer pipe and the return pipe, and a pile cap is arranged at the top of the pile body in a sealed mode; the heat transfer pipe and the return pipe vertically extend out of the pile cap, and ports, outside the pile cap, of the heat transfer pipe and the return pipe communicate through a connecting pipe and a heat collector; and the return pipe is connected with a geothermal pump. According to the graphene modified energy pile, the heat transfer pipe is designed into the spiral type to be fixed into the pile body, the return pipe is designed, thus the contact area between the heat transfer pipe and the filler can be effectively increased, and the heat transfer capacity of the pile body is improved.