158results about How to "Improve heat transfer rate" patented technology

A process for crystallizing a polyester polymer by introducing a molten polyester polymer, such as a polyethylene terephthalate polymer, into a liquid medium at a liquid medium temperature greater than the Tg of the polyester polymer, such as at a temperature ranging from 100° C. to 190° C., and allowing the molten polyester polymer to reside in the liquid medium for a time sufficient to crystallize the polymer under a pressure equal to or greater than the vapor pressure of the liquid medium. A process flow, underwater cutting process, crystallization in a pipe, and a separator are also described.

The invention relates to a method for producing vanadium trioxide by adopting a fluidized bed reactor, belonging to the field of the chemical industry and metallurgy. Heat is provided for reaction by a mode of preheating the materials containing vanadium to be 400-550 DEG C, the materials containing vanadium are preheated by adopting a two-stage cyclonic preheater, and high-temperature smoke generated by a combustion chamber provides heat. Gas with heat value of being larger than 1250kcal / Nm<3> is adopted to be reduced for 5-20 minutes at the temperature of 700-850 DEG C, and a vanadium trioxide product with vanadium grade of being more than 66% can be obtained. The method has the advantages of high reduction efficiency, good energy utilization and suitability for large-scale production of vanadium trioxide.

A solid state lighting apparatus characterized by its compact, predominately axial form factor, utilizes an axial thermal transfer member constructed of Highly Oriented Pyrolytic Graphite (HOPG) to aid in the dissipation of waste heat generated during its operation. The lighting apparatus is chiefly comprised of a Light Emitting Diode (LED) die array and circuit structure assembly affixed to one end of the axial thermal transfer member and further includes a transversely mounted heat sink structure, running the length of, and being affixed to, opposite sides of the axial member. The axial member serves to distribute waste heat down its length, and simultaneously, into a transverse plane where the waste heat is dissipated into the transversely mounted heat sink structure. A fan may be utilized to evacuate the waste heat out of the lighting apparatus and into the ambient environment.

The invention discloses a header tank divided-flow heat-storage counter flow heat exchanger, which comprises a left header tank and a right header tank which are connected with a warm air water inlet, a warm air water outlet, a tap water inlet and a tap water outlet, wherein, a plurality of tap water heat-absorbing pipes are connected with the left and right header tanks; warm air heat supply pipes are connected through tap water heat-absorbing pipes; the warm air heat supply pipes are serially communicated with each other by heat supply communicating pipes; one end of each warm air heat supply pipe is connected with the warm air water inlet, while the other end is connected with the warm air water outlet; and a plurality of water insulation boards is alternatively connected the inside of the left and the right header tanks in order to separate the left and right header tanks to obtain the oriented flow channel. The counter flow heat exchanger of the invention has the advantages that: firstly the heat exchange efficiency is high and the temperature of the outlet water is high; secondly the joints of the heat supply pipes are arranged on the same level of axis line, which is suitably installed in household-measured users of the new heat supply pipe network unit, in particular to the needs of the three northeast provinces; thirdly the users can take a shower in the heat supply region of low temperature, and the heat-absorbing pipes at heat supply region of high temperature is free from scale formation; finally the counter flow heat exchanger is totally made of stainless steel, thereby saving brass pipe, reducing the cost and producing the clean water by exchange.

The invention provides an inoxidable sludge stripping agent and a preparation method thereof. The inoxidable sludge stripping agent is composed of an organic inoxidable biocide, a surfactant, a dispersing agent and water, wherein the mass ratio of the organic inoxidable biocide to the surfactant to the dispersing agent to the water is (10-30) to (5-15) to (1-10) to (40-60). The invention also provides the preparation method of the inoxidable sludge stripping agent. The preparation method comprises the steps of sequentially adding the organic inoxidable biocide, the surfactant, the dispersing agent and the water into a reactor with a stirring device according to the mass part, and stirring to dissolve all the components to obtain the inoxidable sludge stripping agent. The inoxidable sludge stripping agent provided by the invention is an efficient liquid agent and can be used when a circulating cooling water system is polluted by sludge. The inoxidable sludge stripping agent provided by the invention has a favorable function for stripping and removing sludge and dead microorganisms attached on the inner walls of equipment and pipelines, can also be used for killing various microorganisms such as bacteria and fungi in a circulating water system and can be widely applied to the field of circulating cooling water treatment.

The invention relates to a dehumidification device with a rotating wheel. The dehumidification device comprises a fan, a heater, the rotating wheel, a regeneration air outlet, a regeneration air inlet pipeline and a regeneration air outlet pipeline. A working area of the rotating wheel is divided into three sealed areas including a moisture absorption area, a waste heat recovery area and a regeneration area; a regeneration air course is formed at an air outlet of the fan, sequentially flows through the regeneration air inlet pipeline, the waste heat recovery area, the regeneration air outlet pipeline, the heater and the regeneration area and then is exhausted to the atmosphere via the regeneration air outlet; and a dehumidification air course is further formed at the air outlet of the fan, sequentially flows through a clean air pipeline, the moisture absorption area and a clean and dry air pipeline and then flows into an indoor environment from a clean and dry air outlet. The dehumidification device has the advantages that the dehumidification device is further provided with an activated carbon filter and an air filter, toxic chemical gas such as formaldehyde in air can be adsorbed by the activated carbon filter, fine dust in the air can be filtered, and the quantity of harmful germs can be reduced; and on the basis that the air is dehumidified and dried, aldehyde, the dust and the germs can be removed, and the indoor air can be purified.

The present invention pertains to an in-bed heat transfer tube installed in the fluidized bed of a fluidized bed boiler that burns fuels such as refuse-derived fuel (RDF) and waste with a high calorific value, including biomass and plastic, and recovers combustion heat. This in-bed heat transfer tube (5) for a fluidized bed boiler is installed in the fluidized bed (3) of the fluidized bed boiler (1), and the in-bed heat transfer tube (5) consists of: a water tube (6) through which a fluid flows; a protector (8) for protecting the water tube (6), said protector (8) being disposed on the outer circumferential side of the water tube (6); and a filler layer (7) disposed between the water tube (6) and the protector (8).

The invention provides an integrated cavity type conductive fluid heat spreader which includes a cavity (1), the heat absorbing end, flow, liquid, fluid pool, driving pump and a heat radiating end together in one room, the internal cavity structure, and the inner surface is an insulating layer (12); runner type electrode for (31, 32), arranged on the cavity surface, which is used as a channel and the direction of fluid flow regulator; a magnet for (41, 42), in the cavity body and the direction of the magnetic poles and the electrode is arranged on the current direction is vertical range setting; conductive fluid (2), the filling in the cavity; power supply chip (7) which is arranged in the cavity, the outer surface of the electrodes used to provide the input current. According to the heat spreader is provided by the invention greatly reduces the production and packaging process, completely avoid the fluid leakage; the compact volume, heat transfer capacity significantly; the cavity electrode on the position can be set flexibly, significantly enhance the electromagnetic driving force, resulting in the enhancement of heat transfer and flow effect is strong; between different parts of the body temperature of the fluid cavity different mixing efficiency is high, the heat transport capability is strong.

The invention discloses a shape memory alloy baffle heat exchanger. The heat exchanger comprises a barrel body, pipe boxes, baffles and a heat exchange pipe bundle. The pipe boxes are arranged on the two sides or one side of the barrel body. The upper baffles are attached to the top of the barrel body, the lower baffles are attached to the bottom of the barrel body, and the upper baffles and the lower baffles are arranged at intervals. The heat exchange pipe bundle is connected in connecting holes of the baffles in a penetrating mode. In addition, structural parameters and a preparation method for the shape memory alloy in the heat exchanger are provided.

The invention discloses a binary ice transport box for pseudosciaena crocea, which comprises an outer box body and a sealing cover. The outer box body and the sealing cover can be closed together in a covering manner, a supporting convex plate is manufactured on the lower side of the outer box body, a storage box is further disposed in the outer box body, a gap is reserved between a lower edge opening of the storage box and the bottom of the outer box due to the effect of the supporting convex plate, an upper edge opening of the storage box exactly matches with the inner side of an edge opening of the outer box body, and at least two through holes are further manufactured on the outer box body. The supporting convex plate is manufactured on the lower side of the outer box, accordingly, the storage box is arranged aerially, heat exchange liquid can flow between the bottom of the outer box and the storage box, and the purpose of exchanging heat is achieved. In addition, the upper edge opening of the storage box exactly matches with the inner side of the edge opening of the outer box, so that the heat exchange liquid can be prevented from flowing into the storage box to affect frozen storage quality. Furthermore, the through holes are used for filling and draining the heat exchange liquid, and accordingly the purpose of circulatory refrigeration is realized. Besides, the binary ice transport box has the advantages of novel structure, high heat exchange efficiency, fast cooling, easiness in quick packaging, convenience in stacking and simplicity in manufacture.

The invention discloses an LED automobile lamp comprising a lamp housing, an LED device and a heat conducting substrate, wherein the LED device and the heat conducting substrate are arranged in the lamp housing. The LED automobile lamp is characterized in that the LED device is mated with one face of the heat conducting substrate, the other face of the heat conducting substrate is provided with a pin fin integrated with the heat conducting substrate, and the pin fin is arranged outside the lamp housing. In the pin fin type LED automobile lamp, heat generated by the LED device is directly transmitted to the outside of the automobile lamp through the heat conducting substrate and is then radiated through heat convection with the air outside the automobile lamp through the bent pin fin. The heat conducting substrate and the pin fin are formed by being cut wholly without thermal contact resistance, therefore, high heat transfer efficiency is achieved; in addition, the bent pin fin effectively expands the heat transfer area and improves the heat radiating performance.

The invention relates to a novel high-power LED radiating device which comprises a base plate, a finned radiator, a miniature pump, a fan and a liquid delivery tube. An inlet and an outlet which are used for being communicated with the liquid delivery tube are formed in two ends of the base plate, the liquid delivery tube is communicated with the miniature pump and the finned radiator and is filled with cooling liquid, the miniature pump provides power for the cooling liquid to form a circulating circuit, the fan is arranged below the finned radiator, the base plate is filled with porous media, and the finned radiator is free of location limitation and can be placed at a required position according to actual conditions. The novel high-power LED radiating device has the advantages that LED heat can be transferred by the aid of characteristics of large contact area and high heat transfer rate of the porous media, the miniature pump provides the power for the cooling liquid to form the circulating circuit, the flow rate of the liquid can be changed, and accordingly the LED heat can be radiated under the control.

The invention discloses an immersion-type heat exchanger which comprises a shell, wherein a fluid inlet A and a fluid inlet B are formed in the top of the shell; a fluid outlet A is formed in the bottom of the shell; a fluid outlet B is formed in the upper part of the side surface of the shell; a heat exchanging pipe is arranged in the shell; the upper end of the heat exchanging pipe is communicated with the fluid A inlet; the lower end of the heat exchanging pipe is communicated with the fluid A outlet; a fluid dispersion plate is arranged in the shell at the fluid A inlet; a plurality of electrical heated tubes are arranged in the spiral channel of the heat exchanging pipe; a heating drying plate is arranged at the bottom of the shell at the fluid A outlet end. The fluid dispersion plate can effectively disperse fluid A entering from the fluid A inlet and fully exchanges heat with the heat generated by the fluid in the heat exchanging pipe, and at the same time, the electrical heated pipes in the spiral channel of the heat exchanging pipe are heated to reduce heat loss, so that the heat exchanging efficiency is greatly improved.