346results about How to "Increase heat absorption area" patented technology

The invention discloses a tower type solar thermal power generation system for a heat absorber of vacuum heat absorption pipes, which is characterized in that water/steam is taken a heat transfer fluid, and fusion salt is taken as a heat storage medium. The tower type solar thermal power generation system comprises a heliostat (1), a support tower (2), a heat absorber (3), a steam turbine (4), a generator (5), a deaerator (6), a condenser (7), a water feed pump (8), a high-temperature fusion salt storage tank (9), a low-temperature fusion salt storage tank (10), a water/steam-fusion salt heat exchanger (11), a fusion salt steam generator (12) and a control valve (13). The heat absorber (3) is formed by connecting the vacuum heat absorption pipes (18) in series and in parallel. According to the invention, the heliostat is arranged in a fan-shaped manner, a rectangular manner or a circumferential manner, the high-temperature and high-pressure overheating steam is obtained, and the solar thermal power generation system is suitable for a large installed capacity tower type solar thermal power generation station.

An open type communication and heat-absorption heat exchanger with headers and double-channel cold water pipes comprises the two headers, wherein ends of the two headers are in welding connection with end cover plates respectively; two or more heat supply pipes are in welding connection between the two headers; a porous middle plate is arranged in each header along the longitudinal direction; each header is divided into two half headers by the corresponding porous middle plate; the half header, which is in welding connection with the heat supply pipes, of each header is an inner half header, and correspondingly, the other half header of the header is an outer half header; one or more cold water pipes penetrates or penetrate through each heat supply pipe; one or more cold water pipe mounting holes is or are formed in a position, which corresponds to an opening of each heat supply pipe, of each porous middle plate; two end openings of each cold water pipe are in welding connection with the pore walls of the corresponding porous middle plate; the cold water pipes penetrate through the inner half headers and are communicated with cavities of the outer half headers; a heat inlet and a heat outlet are in welding communication with the inner half headers respectively; and a cold water inlet and a cold water outlet are in welding communication with the outer half headers respectively. The heat exchanger is a high-efficiency heat exchanger, and by the heat exchanger, multi-dividing-wall absorbed heat and water storage type internally stored heat are transmitted in a stepped manner, heat absorption area is increased, heat is absorbed quickly, heat loss is reduced, and the temperature is changed in a stepped manner.

The invention provides a vacuum low-temperature thermostat, which comprises a vacuum chamber for maintaining a vacuum state, a first cavity (4) and a second cavity (5), wherein the first cavity (4) is suspended in the vacuum chamber, and is used for containing a first refrigerant; at least two first conduits (2) for introducing and/or discharging fluid are connected to the first cavity (4); a cooling area is below the first cavity (4); the second cavity (5) is suspended in a way of surrounding the first cavity (4) in the vacuum chamber, and is used for containing a second refrigerant; the boiling point of the second refrigerant under standard atmospheric pressure is higher than that of the first refrigerant; at least two second conduits (3) for introducing and/or discharging the fluid are connected to the second cavity (5); the second cavity (5) can be used for externally cooling the first cavity (4), and is spaced from the first cavity (4) through vacuum. The vacuum low-temperature thermostat has the characteristics of low consumption of refrigerants with low boiling points and slight vibration.

The invention relates to a cooling structure of a permanent magnet motor, in particular to a fully-sealed forced air ventilating cooling structure of the permanent magnet motor, which solves the problems of poor cooling property and limited application range of the existing permanent magnet motor. The fully-sealed forced air ventilating cooling structure of the permanent magnet motor comprises a machine base, a front end cap, a back end cap, a front bearing, a back bearing, a stator structure and a rotor structure; a radial air inlet hole, a third air ventilating gap, an axial air ventilating hole, a first air ventilating gap and a radial air outlet hole form a main cooling air path structure; an axial front air inlet hole, a second air ventilating gap and an axial front air outlet hole form a front auxiliary cooling air path structure; an axial back air inlet hole, a fourth air ventilating gap and an axial back air outlet hole form a back auxiliary cooling air path structure; front fan blades are fixedly arranged at the front end surface of a rotor iron core; back fan blades are fixedly arranged at the back end surface of the rotor iron core. The fully-sealed forced air ventilating cooling structure is suitable for the permanent magnet motor.

The present invention discloses a combined type preform taking and cooling manipulator and a method thereof. A cooling cylinder is arranged on the preform taking manipulator. A bottle preform pushed out by an ejector in a die cavity is cooled in the cooling cylinder on the manipulator for the first stage. When the manipulator moves to a position corresponding to a cooling pin, the cooling pin extends into the bottle preform and sprays gas (air) to carry out forced convection cooling for the inner surface of the bottle preform. The adoption of the novel combined cooling mode not only can ensure uniform cooling for the interior and the exterior of the bottle preform, but also can largely improve cooling efficiency. Meanwhile, the present invention adopts the design that the inner circulating pipe of the cooling cylinder integrates arch-shaped grooves and spiral grooves. The design improves the heat absorption area of the cooling cylinder, the volume of cooling fluid passing through the cooling cylinder and the cooling efficiency of the bottle preform, makes the integral cooling of the bottle preform more uniform, and improves the integral quality of the bottle preform.

The invention relates to a solar thermal collector and a heating system applying the thermal collector. The solar thermal collector can be used for drying clothes or heating water and comprises a solar thermal collecting tube, a unifying device and a heating system; wherein the solar thermal collecting tube is a duplicature vacuum tube, the two ends of the solar thermal collecting tube are all connected with the unifying device and are communicated with a semi-ring channel, thus forming a solar thermal collector; the heating system can be a clothes-drying system composed of a clothes-drying case, a condenser, a hanger, a fan and an air pipe and also can be a water heating system composed of a thermal storage tank, a steam outlet, a heating coil tube, a water tube, a tap and a superconductive liquid tube. The invention overcomes the defects of the existing solar thermal collector and provides a solar thermal collector capable of drying cloths or heating water as well as a heating system applying the solar thermal collector, manufacturing process is simple, starting is fast, cost is lower, use is reliable, thermal absorption area is wide, thermal utilization factor is high, and corrosion resistance can be achieved.

The invention discloses a header cold water pipe open communication heat absorption heat exchanger and a manufacturing process of the header cold water pipe open communication heat absorption heat exchanger. The header cold water pipe open communication heat absorption heat exchanger at least comprises two heat supply pipes, wherein two ends of the heat supply heats are respectively welded with a header, at least one cold water channel is arranged inside a heat supply pipe cavity, ports at two ends of the cold water pipe channel are communicated in open cavity mode, and deposited scales in a cold water pipe can be conveniently cleaned by poured acid liquor. The cold water pipe stores water and absorbs heat, effective heat sources can be fully utilized, the heat is quickly absorbed through multiple dividing walls, the heat is transmitted in step mode, a heat absorption area is enlarged, and due to the fact that water is stored in the headers, the length of flow path of cold liquor is increased, the time of heat exchange is prolonged, heat loss is reduced, and heat exchange efficiency is improved. Longitudinal or transverse flexible installation is achieved by reasonable utilization of space, requirements of users can be met, materials are saved, and production cost is reduced. Product quality is stable and reliable, and service life is prolonged. The same kind of metal material is adopted, the weight is light, transportation is convenient, and logistics transportation cost is saved.

The invention discloses a water drain type electric cabinet dehumidifier which comprises a shell and a semiconductor refrigerating assembly and a control circuit installed inside the shell, wherein the semiconductor refrigerating assembly is installed at the left side of the shell, and the control circuit is installed at the right side of the shell; and the semiconductor refrigerating assembly comprises a heat radiating fan, a heat radiating aluminum sheet, a semiconductor refrigerating sheet, a heat isolating cushion, a heat absorbing aluminum sheet and a temperature sensor, and the control circuit comprises a switching power board and a control board. The water drain type electric cabinet dehumidifier provided by the invention overcomes the defects of the prior art and is an electric special dehumidifier having thorough dehumidification and ensuring the safe operation of electrical equipment.

The invention discloses a power density adjustable film reflecting and condensing space solar energy collecting station, which comprises a spacecraft platform, an optical system and a light path adjusting mechanism, wherein the optical system comprises a main condenser, an auxiliary condenser and a plane mirror; the main condenser and the auxiliary condenser are arranged in opposite directions, optical axes of the main condenser and the auxiliary condenser are overlapped, and a normal distance between the main condenser and the auxiliary condenser is adjusted through the light path adjusting mechanism to change the power density of output light beams; the angle of the plane mirror is adjusted through the light path adjusting mechanism to change the direction of the output light beams; sunlight is condensed and reflected to the auxiliary condenser through the main condenser, the reflected light rays are condensed and reflected to the plane mirror through the auxiliary condenser, and the light beams are reflected to a target through the plane mirror.

The invention discloses a two-phase separation micro-channel heat sink. The heat sink comprises a microchannel array, a bottom plate and a cover plate. The bottom plate and the cover plate are connected through a boding mode to form a main body structure of the heat sink. The microchannel array is etched on the bottom plate. The microchannel array is formed by gas channels and liquid channels, wherein the gas channels and the liquid channels are arranged alternately, and the side walls of the gas channels and the liquid channels are respectively in a multi-through-hole structure. The heat sinkadopts the two-phase separation transmission channels, which are formed by the gas channels and the liquid channels; and the gas channels and the liquid channels realize separate transmission to allow working liquid and gas to be transmitted separately, thereby enhancing phase change process of fluid in the micro-channel heat sink, solving the problems of too large fluid pressure drop and flow instability in the liquid channels and enhancing heat exchange capability.

A vacuum heat collector of solar energy uses the oscillating flow tube as the heat collecting tube. It includes: the out oscillating flow tube, the inner oscillating flow tube, the thermal insulating block cover and the glass vacuum tube. The oscillating heat flow tube is distributed for 2-3 layers on the circle of the glass vacuum tube which is made up of the inner glass tube, the out glass tube, the spring shelf and the getter; one end of the glass vacuum tube is open and one end of the inner and out tube mouth is fused, the other end is the half ball head. The inner glass tube is supported by the spring shelf which is set with the getter to absorb the gas when the glass vacuum tube works to keep the vacuum. The open end of the glass vacuum tube is set with the thermal insulating block cover to decrease the heat loss. So the invention has the big heat absorbing area and high heat collecting efficiency.

The invention relates to an equalizing plate structure, in particular to an equalizing plate structure capable of rapidly conducting heat energy produced by a heating element. The equalizing plate ismade by the steps that proper amount of soldering flux is coated in the containing space concavely arranged on the surface of a metal plate (copper plate or aluminium plate), a heat pipe is made intogeometry shape close to the containing space in advance, each heat pipe is placed into the concavely arranged containing space coated with soldering flux, the metal plate is heated in a reflow oven tobe heated, so that the heat pipe and the metal plate can be adhered tightly by soldering flux, the upper surface and the lower surface of the metal plate are milled or ground to be flat, the plane ofthe heat pipe respectively exposes out of the surface of the metal plate, and the plane of the heat pipe is parallel with the surface of the metal plate, thus, the heat absorption area of the equalizing plate is directly contacted with heat source, efficiency of heat conduction and heat diffusivity is improved, and further the heat energy continuously produced by the heating element can be conducted to distal end by the equalizing plate continuously, so as to maintain that the heating element normally operates at allowable temperature.

A fixed ridge style solar vacuum tubular focusing water heater consists of a triangular frame, a tank on its top, a heat-conducing cylinder beneath and connected with the tank, two sets of vacuum heat-collecting tubes installed on both side of the said cylinder, and focusing strips installed under the said heat-collecting tubes. The cylinder is little higher than the both edges of the frame to form a ridge. The declination of the ridge depends on direction of sunshine to make it perpendicular to the cylinder in the noon in the winter. It can produce hot water in winter and prevent from boiling in summer at anywhere.

The invention relates to a vacuum collector tube with sealing heat pipe, belonging to solar heat utilization technology area. The collector tube comprises glass outer tube and heat pipe. Upper-middle part of heat pipe inserts in the central hole of metal flange plate and is welded in sealing. Cooling jacket with water inlet and outlet ports are welded at the upper in sealing. Kovar alloy ring is welded with glass outer pipe port in sealing round the metal flange plate. Vacuum cavity is formed between glass outer tube and hot tube. Protective cover for covering the sealing connection seam is set on the hot pipe. It is provided with simple structure and feasible producing process. All sealing connection seams can not be irradiated by sun light directly. So overhigh temperature can be avoided. Fitting suit between protective cover and glass outer pipe can take the effect of assistant support and over-collection of stress at the sealing welding seam is avoided. It is especially applied in middle-high large specification vacuum collector tube with sealing heat pipe.

The invention relates to a linear Fresnel solar heat collector device comprising a receiver and an optical concentration module, wherein the optical concentration module is used for reflecting sunlight to the receiver, and the receiver is arranged above the optical concentration module by a bracket. The receiver comprises a series of heat absorption pipes which mutually extend in parallel, the heat absorption pipes form a cavity body together, an opening is arranged at one end of the cavity body facing to the optical concentration module, the outside of the opening is covered by a transparent cover body, a sealing cover body is arranged at one end of the receiver which is far away from the opening, a vacuum chamber is formed between the transparent cover body and the sealing cover body, the heat absorption pipes are contained in the vacuum chamber, and the sunlight focused by the optical concentration module enters the cavity body from the opening, is reflected for many times in the cavity body and is absorbed. Meanwhile, vacuum is arranged between the transparent cover body and the sealing cover body, so that the convection heat loss can be effectively reduced, and the heat absorption efficiency of the receiver is enhanced.

The invention relates to a heat collector utilizing solar energy, in particular to a flat-plate-type air solar heat collector and a production method for a heat absorption plate thereof. The heat collector comprises a frame, a transparent cover plate, a heat absorption plate and a heat preserving layer, wherein the transparent cover plate, the heat absorption plate and the heat preserving layer are sequentially installed inside the frame. The heat collector is characterized in that the heat absorption plate is in a wave shape, a separation plate, the heat preserving layer and a rear panel are sequentially installed on the back surface of the heat absorption plate, two ends of the wave-shaped heat absorption plate are respectively provided with a baffle plate for sealing, each baffle plate is provided with a hole through which air passes in and out, a certain distance is reserved between each of the two baffle plates and the correspondent frame to respectively form an air distribution passage, the frame is respectively provided with a cold air inlet pipe and a hot air exhaust pipe, and the cold air inlet pipe and the hot air exhaust pipe are communicated with the air distribution passages. The production method for the heat absorption plate comprises the steps of sand blasting and spraying of a solar absorption coating. The flat-plate-type air solar heat collector has the characteristics of large heat absorption area, reasonable structure, low production cost, high heat efficiency, capability of effectively improving the heat energy conversion rate of the flat-plate-type solar heat collector, and the like.

A decorative heat-preserved wall board with solar and air heat collection is provided, which comprises a back board, a panel, a rim and an inner cavity. The back board is a shallow box-like heat-preservation sandwich board, an air inlet is provided at the lower part of the box bottom, an air outlet is provided at the upper part of the box bottom, at the air outlet, a solar fan is installed. The power supply of the fan is a solar photovoltaic power generating board at inner side at front of the panel. The panel is a flat glass. Between the panel and the back board, the rim is connected. On the rim, some concave ports for connecting are provided. In the inner cavity enclosed by the panel, back board and the rim, a corrugated heat-absorbing board is fixedly connected on the inner bottom side of the shallow box-like heat-preservation sandwich board. The outer surface of the corrugated heat-absorbing board is provided with a heat-absorbing coating. The inner wall of the corrugated heat-absorbing board is connected with heat-exchanging fins. The inside of the corrugated heat-absorbing board forms a heat-exchanging cavity, which is communicated with the air inlet and the air outlet. The invention greatly reduces the cost of the wall board integrating solar with a building, is easy to maintain, improves the service life and is easy to spread and apply in large area.

The invention relates to a heat exchanger structure, comprising a heat exchanger casing and a combustion chamber, wherein the peripheral face of the combustion chamber is provided with a plurality of positioning bosses which are fixed with an inner wall of the heat exchanger casing; and heat transfer medium passages are formed between adjacent positioning bosses and are spirally shaped along the axis of the combustion chamber. In the heat exchanger structure, the heat transfer medium passages are formed between adjacent positioning bosses and are spirally shaped along the axis of the combustion chamber; the positioning bosses are fixed in a sealing manner with the inner wall of the heat exchanger casing; heat energy inside a cavity of the combustion chamber can achieve direct heat exchange with heat transfer media, thus the efficiency of heat exchange is enhanced; the heat absorption area of the media is enlarged, the heat conversion efficiency is enhanced, the number of laminar flow layer decreases, the number of turbulent flow layer increases and the heat conversion coefficient is raised; and simultaneously, the particles inside the heat transfer medium passages are hardly deposited and scale-formed, the maintenance times is reduced, the service life is prolonged and the using cost is lowered.