368results about How to "Increase heat conduction area" patented technology

The invention discloses a precession-type backfill grouting ground source thermal energy conversion precast pile device, which comprises a plurality of precession-type backfill grouting prefabricated screw piles respectively embedded into pile holes, wherein a vertical heat exchanger is embedded in each screw pile; the inlet end and the outlet end of each vertical heat exchanger respectively extend out of an opening at the upper end of the screw pile to be respectively connected with a horizontal liquid-feeding collecting pipe and a horizontal liquid outlet collecting pipe in a bearing platform or a cushion layer; centring brackets are arranged at an interval of 1-3 m along the length direction of each vertical heat exchanger; each precession-type backfill grouting prefabricated screw pile comprises a hollow pile core, wherein the bottom of the pile core is provided with a cone-shaped pile head; a screw blade is arranged on the position far away1-3m from the lower part of the outer wall of the pile core; and a post grouting reinforcing layer is poured between the middle upper part of the outer wall of the pile core and a pile hole wall. The precession-type backfill grouting ground source thermal energy conversion precast pile device comprises a plurality of precession-type backfill grouting prefabricated screw piles, and the vertical heat exchanger is embedded in each screw pile; the pile foundation construction and the ground source heat pump construction are integrated so as to avoid a drilling and pipe-laying program of a ground source heat pump system on the ground, greatly lower the front-end investment cost and save the land use area; and the post grouting reinforcing layer is poured between the middle upper part of the outer wall of the pile core and the pile hole wall so as to enlarge a heat conduction area, improve the heat conduction performance and simultaneously improve the pile body bearing capacity.

The invention discloses a magnetic phase transition microcapsule and a preparation method thereof. Nanometer magnetic powder is filled in a microcapsule material to form a shell, and a core material is wrapped in the shell. The magnetic phase transition microcapsule is prepared by the following steps: firstly, adding urea to a formaldehyde solution to dissolve or adding melamine to the formaldehyde solution, or adding the urea to the formaldehyde solution and adding melamine after fully dissolving the urea; then, reacting under stirring at a constant temperature to obtain a prepolymer solution; adding the nanometer magnetic powder to the prepolymer solution and dispersing the solution under ultrasound; dissolving an emulsifying agent in the water, adding an organic phase transition material and cutting and emulsifying the organic phase transition material at a high speed to prepare an emulsion; and uniformly mixing the emulsion and the prepolymer solution after ultrasonic dispersion and reacting under stirring at the constant temperature to obtain the magnetic phase transition microcapsule. The magnetic phase transition microcapsule has magnetism and can reach specific parts under the guide of an external magnetic field while the magnetic phase transition microcapsule is applied to a latent heat type functional fluid so as to control the flow of the fluid.

An electric heater for pipeline is an electric heater used for heating the pipeline or the medium therein. A temperature control unit is composed of a SCM and a temperature sensor, also has two bush-shape metal endoconches. On the inwall side of the two metal endoconches is fixed with an electric heating pipe, also has two bush-shape molding heat-conducting layers made of heat conducting materials used in shrinking on the pipeline. The outerwall side of the molding heat-conducting layers is joint with the inwall side of two metal endoconches. Also provided are two bush-shape molding insulating layers joint with the outerwall side of the two metal endoconches, two bush-shape shell on the external surface of the two molding insulating layers. Also provided are the fixed links joining the heating module on the pipeline. The invention has the advantages of high thermal efficiency, convenient to assemble and disassemble and is widely used in a variety of pipeline heating occasions.

A method for manufacturing a substrate for a light emitting element package provided with a thick metal section formed under a mounting position of a light emitting element, having a lamination step of laminating and integrating a laminate having an insulating adhesive agent which is composed of a resin containing heat conductive fillers and has a heat conductivity of 1.0 W/mK or more and a metal layer member, with a metal layer member having a thick metal section while drawing out each member.

The invention relates to a heat-protective varistor which has simple and compact structure, high reaction speed and wide application range and self failure protection function. An insulation bracket is arranged on a main body of the varistor component, and a heat fuse and a contact pin are mutually and electrically connected and are arranged on the insulation bracket. When the main body is affected by various excessive voltages to result in an abnormal temperature rising, the heat conduction area can be enlarged with the help of the insulation bracket so as to quickly transmit heat to the heat fuse and then the temperature of the heat fuse rises in virtue of the excessive heat; once the temperature is above a melting point the fuse forms a melted liquid state. A plurality of grooves are arranged on the insulation bracket, and the capillary force generated by the grooves can further promote the melted liquid fuse to diffuse quickly. And the quick melting-diffusion and separation of the heat fuse can reflect the excessive heat state in time to avoid the burning of the main body, so as to reach the aim of cutting the circuit in time to protect the electronic components of a current loop from being damaged.

The invention relates to heat pipe. It is set evaporating part and condensing part. It includes the following structure: circulation fluid storage space, box type shell, capillary structure in shell inner wall, passage supplied for gas state circulation fluid to flow, and heat exchange unsmooth in the evaporating part. It has the advantages that it can maximize exchange area to relatively increase heat exchange efficiency; it can prevent bubble to increase heat exchange efficiency when the phase of the heat tube is changed.

The invention relates to the field of tail gas treatment of engineering machinery, in particular to a selective catalytic reduction (SCR) urea heating/cooling system and method. The system comprises an engine and a radiator and further comprises a heating and cooling pipe disposed in a urea tank. The heating and cooling pipe is provided with a first water inlet port and a first water outlet port. The engine is provided with a second water inlet port and a second water outlet port. The radiator is provided with a third water inlet port and a third water outlet port. In addition, the second water outlet port is connected with the third water inlet port in a communicating mode, and the third water outlet port is connected with the second water inlet port in a communicating mode, so that heat dissipation is performed on the engine. The first water inlet port is connected with the second water outlet port and the third water inlet port in a communicating mode, and the first water outlet port is connected with the second water inlet port, so that urea is heated through hot water discharged from the engine and the urea is cooled through warm water discharged from the radiator. By means of the scheme, control can be performed according to the real-time temperature of the urea, so that the urea works at the appropriate temperature all the time, and the emission performance of a machine is guaranteed.

The invention discloses a non-contact liquid cooling system for high-power charging and a liquid cooling method of the non-contact liquid cooling system, the non-contact liquid cooling system comprises a liquid cooling cable, a cable built-in pipeline is arranged in the center of the liquid cooling cable, a quick connector is arranged at the rear end of the cable built-in pipeline, and the cable built-in pipeline is coated with a cable conductor. A cable outer insulating layer is arranged on the outer side of the cable conductor, a power terminal is connected to the rear end of the cable conductor in a pressing mode, the quick connector is fixedly installed on a liquid cooling cavity, and an insulating heat conduction piece is arranged in the liquid cooling cavity. According to the non-contact liquid cooling system for high-power charging and the liquid cooling method of the non-contact liquid cooling system, heat generated on the power terminals during charging is transmitted to and exchanged to the cooling liquid through the insulating heat conduction piece, the rapid circulating cooling liquid transmits heat, the cooling is rapid, a non-contact mode is adopted, the cooling liquid is safer, the short-circuit risk is eliminated, and through the I-shaped design of the insulating heat conduction piece, the heat dissipation is more comprehensive and effective.

A projector comprises a case, an illuminant heat source, a thermal module, and an equalizing temperature module. The equalizing temperature module is disposed between the illuminant heat source and the thermal module. When the fluid flows from the illuminant heat source to the equalizing temperature module, the fluid flows through a relative high temperature region more than that of flowing through a relative low temperature region. The equalizing temperature module at least comprises a heat pipe and a plurality of heat sinks. The heat pipe has a first end located in the relative low temperature region and a second end located in the relative high temperature region. The heat pipe transfers heat from the relative high temperature region to the relative low temperature region by a cold fluid in the heat pipe. The plurality of heat sinks are disposed on the heat pipe to increase the area of heat conduction. The projector can uniform the fluid temperature by means of the equalizing temperature module so as to increase life time and reliability of the thermal module.

The invention relates to a heat dissipation system for an LED lamp, comprising a circulation pipe (1) and a pump (2), and also includes an LED heat dissipation module (3) and a power supply heat dissipation module (4), the LED heat dissipation module (3) ) is a fluid cooling device for the LED lamp (5), and the power cooling module (4) is a fluid cooling device for the LED lamp power module (6); the circulation pipe (1) is connected to the LED cooling module (3) and the power supply A heat dissipation module (4); the pump (2) is installed on the circulation pipe (1), so that the fluid in the circulation pipe (1) passes through the LED heat dissipation module (3) and the power supply heat dissipation module (4) to form a circulating type flow, thereby simultaneously realizing the heat dissipation and cooling functions of the LED lamp (5) and the power module (6). The invention not only effectively guarantees the heat dissipation effect of the whole LED lamp equipment, improves the lighting effect and quality of the LED lamp, but also prevents the power module from being damaged by heat, so that the service life can be effectively prolonged.

A radiator suitable to carry out Ni anticorrosion on internal cavity of aluminium alloy is prepared as setting T shaped radiation fin on two surfaces of radiation plate of aluminium alloy, setting connection water channel on top and bottom connection units, inserting aluminium alloy seal cover into internal cavity at two ends of said radiation plate and applying argon arc welding to weld them together, reserving internal thread at two ends for connecting with two said connection units and water inlet and outlet as well as using chemical plating to plate Ni-P anticorrosion at internal cavity of said radiation plate.

A manufacturing method of heat conductive device for an LED has steps of forming a heat sink and an engagement recess in the heat sink by cold forge, punching a heat-conducting disc to form an LED carrier having a mounting portion and a heat-conducting wall formed around the mounting portion, soldering multiple LEDs on the LED carrier, and heating the heat sink to thermally expand the heat sink and assembling the LED carrier and the heat sink so that the heat-conducting wall is assembled with the engagement recess and further chilling the heat sink to thermally retract and tightly hold the LED carrier. The manufacturing method increases contact area and reduces air gaps between the LED carrier and the heat sink to effectively enhance the heat-conducting efficiency of the LED carrier so that the LEDs are operated at a suitable operating temperature to secure a prolonged life duration.

The invention discloses a new energy automobile water-cooled condenser which comprises a condenser body and a draught fan assembly. The condenser body comprises an outer pipe and an inner pipe which are fixedly installed in a sleeve manner, a refrigerant flowing channel is formed in an inner cavity of the inner pipe, a water flowing channel is formed in a space between the inner pipe and the outerpipe, the two ends of the outer pipe are provided with a water inlet connector and a water outlet connector, the two ends of the inner pipe are provided with a refrigerant inlet connector and a refrigerant outlet connector, the water inlet connector and the water outlet connector both communicate with the water flowing channel, the refrigerant inlet connector and the refrigerant outlet connectorboth communicate with the refrigerant flowing channel, heat conduction fins are arranged outside the outer pipe, and the draught fan assembly is arranged on one side of the condenser body to be used for blowing air to or sucking air from the condenser body. By means of the water-cooled condenser, the inner pipe and the outer pipe which are installed in the sleeve manner are used for achieving heatexchange between medium water and a high temperature refrigerant, heat in the high temperature refrigerant is conveniently recovered, utilization of thermal energy in a new energy automobile is morereasonable, and the aim of energy saving is achieved.

A solar thermoelectric power generation movable refrigerator comprises a refrigerator body. A solar thermoelectric power generation device is arranged on the surface of the refrigerator body. A refrigerating device is arranged in the refrigerator body. A semiconductor thermoelectric power generation slice is directly or indirectly fixed to the surface of a heat source in the solar thermoelectric power generation device and/or the refrigerating device. The solar thermoelectric power generation movable refrigerator has the beneficial effects that a solar thermoelectric power generation module carries out photovoltaic power generation through the solar energy and further carries out power generation through the temperature difference, and the utilization efficiency of the solar energy is improved. The thermoelectric power generation chip is fixed to the hot end of a condenser or a semiconductor chilling plate, and therefore recycling power generation of surplus heat is achieved.

The invention relates to a vertical gas fired boiler, comprising a chimney, a smoke venting cover, an outer boiler furnace, water jackets, a fire tube, hearths and a boiler door tube, wherein the chimney is welded on the smoke venting cover; the smoke venting cover is installed at the top of the outer boiler furnace; an upper hearth is formed between the lower part of the smoke venting cover and each of an upper side plate and an upper embossed plate; the outer boiler furnace is internally provided with the fire tube; a lower hearth is positioned in an inner boiler furnace; the boiler door tube is communicated with the lower hearth; the gap between the periphery of the inner boiler furnace and the outer boiler furnace forms a lower interlayer water jacket; an upper interlayer water jacketis communicated with the upper part of a water containing cavity; and the lower part of the water containing cavity is communicated with the lower interlayer water jacket. The vertical gas fired boiler is characterized in that the fire tube is internally provided with a water tube, the upper hearth is internally provided with an upper horizontal water tube, the lower hearth is internally providedwith a lower horizontal water tube, the upper end of the water tube is welded on the through hole of the upper horizontal water tube, and the lower end of the water tube is welded on the through holeof the lower horizontal water tube. A water interlayer and a horizontal water tank can also be arranged on the smoke venting cover. The vertical gas fired boiler has large heat exchange area and highthermal efficiency.

The present invention proposes a finned tube main heat exchanger for a gas heating water heater, which includes a collector, a heat exchange flat tube and fins, and the collector includes two water boxes separated by a heat exchange body section The two ends of several heat exchange flat tubes are respectively inserted into the heat exchange flat tube sockets of two water boxes to connect with the current collector. There is a partition plate in the water box, and the heat exchange flat tubes pass through the fin perforations and connect with several The fins are connected, the heat exchange body area is covered with fins, the collector has a water inlet and a water outlet, and is respectively connected to the water inlet joint and the water outlet joint; the heat exchange flat tube is a single-channel straight tube, and its cross-sectional size is 2 to 6 ×10~30mm, at least 10 heat exchange flat tubes are arranged in parallel. 1) The heat exchange tube per unit mass of the present invention has a large heat exchange area, and the heat exchange efficiency of the main heat exchanger is high. 2) The main heat exchanger has a highly compact structure and light overall weight, which can save a lot of material costs. 3) The water resistance and pressure loss of the main heat exchanger are small. 4) The main heat exchanger has the characteristics of simple manufacturing process, easy manufacturing, and low manufacturing cost.

The invention relates to an integrated liquid cooling machine box based on two-phase heat transfer and a two-phase heat transfer method thereof. The integrated liquid cooling machine box comprises a machine box shell, a two-phase liquid cooling source and a plug-in cold guide plate, wherein flow channels which are communicated with each other are arranged in the top wall and the bottom wall of themachine box shell; the upper end and the lower end of the plug-in cold guide plate are fixedly connected with the top wall and the bottom wall of the machine box shell respectively, and are used forfixing electronic plug-in components; the two-phase liquid cooling source is fixedly connected with the machine box shell; and each flow channel has a flow channel inlet and a flow channel outlet which are communicated with the two-phase liquid cooling source through pipelines. The two-phase liquid cooling source is fixedly connected with the machine box shell and does not need to depend on an external liquid cooling source. The two-phase liquid cooling source is adopted, and a working medium is subjected to liquid state and gaseous state conversion in a pipeline system; the cooling working medium absorbs the heat of electronic equipment in the flow channels and is changed from the liquid state into the gaseous state, so that heat exchange efficiency is far higher than that of single-phasefluid heat exchange; and the cooling working medium phase change is performed in an isothermal process, so that the isothermal performance of the top wall and the bottom wall of the machine box shellis superior to that of the single-phase fluid heat exchange.

The invention discloses a seat structure and manufacturing method of diode irradiance device, thereinto the irradiance device includes seat structure, diode chip, light getting layer and lens, the seat structure possesses heat-conducting noumenon, plastic insulator and lead rack. Thereinto the plastic insulator is combined with the heat-conducting noumenon via the first mould, and then it is produced via the heat-conducting noumenon or the first sprue of the first mould in effluence moulding mode and the lead rack is coated in the plastic insulator. The lens are produced by combining the heat-conducting noumenon which is after connection from diode chip to lead rack and coating of light getting layer with the second mould.