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523results about How to "High work pressure" patented technology

Energy storage and generation

The present invention concerns systems for storing energy and using the stored energy to generate electrical energy or drive a propeller (505). In particular, the present invention provides a method of storing energy comprising: providing a gaseous input, producing a cryogen from the gaseous input; storing the cryogen; expanding the cryogen; using the expanded cryogen to drive a turbine (320) and recovering cold energy from the expansion of the cryogen. The present invention also provides a cryogenic energy storage system comprising: a source of cryogen; a cryogen storage facility (370); means for expanding the cryogen; a turbine (320) capable of being driven by the expanding cryogen; and means (340, 350) for recovering cold energy released during expansion of the cryogen.
Owner:HIGHVIEW ENTERPRISES LTD

Mixing system of fracturing fluid and mixing method thereof

The invention provides a mixing system of fracturing fluid, which comprises a first mixer, a base fluid supply piece and a powder supply piece; the first mixer is a jet mixer, and a base fluid input end of the first mixer is connected with the base fluid supply piece; a powder input end of the first mixer is connected with the powder supply piece, and the first mixer is linked in parallel with a parallel pipeline capable of conveying the base fluid; the base fluid input end of the parallel pipeline is connected with the base fluid output end of the base fluid supplier, and the first mixer is linked with a second mixer in series; the second mixer is a variable flow jet type mixer, a fracturing fluid input end of the second mixer is connected with a fracturing fluid output end of the first mixer; the base fluid input end of the second mixer is connected with the base fluid output end of the parallel pipeline. The mixing system of fracturing fluid can meet the emission and fluid viscosity of the fracturing fluid simultaneously.
Owner:YANTAI JEREH PETROLEUM EQUIP & TECH CO LTD +1

Light five-cylinder plunger pump

PendingCN111441925AIncreased stroke distanceIncrease rated input powerCrankshaftsPositive displacement pump componentsCrankGear wheel
The invention discloses a light five-cylinder plunger pump. The light five-cylinder plunger pump comprises a power end assembly and a hydraulic end assembly, wherein the power end assembly is connected with the hydraulic end assembly; the cylinder spacing of the light five-cylinder plunger pump is 9in; the power end assembly comprises a crank shaft, the crank shaft comprises six crank necks and five crank throws, the crank necks and the crank throws are fixedly connected, the distance between rotating centers of the crank necks and the crank throws is 101.6 mm, and the stroke distance of the light five-cylinder plunger pump is 203.2 mm. According to the light five-cylinder plunger pump, power is increased by increasing stroke, reducing transmission ratio and improving bearing capacity, andmeanwhile, dead weight is reduced by reducing the cylinder spacing, the tooth number of a big gear and the tooth thickness of the big gear and a pinion. The light five-cylinder plunger pump meets conditions of working in the area with severe well cementing operation conditions in aspects of weight and power simultaneously, and working efficiency is increased.
Owner:YANTAI JEREH PETROLEUM EQUIP & TECH CO LTD

Method to package multiple MEMS sensors and actuators at different gases and cavity pressures

A method for fabricating a multiple MEMS device. A semiconductor substrate having a first and second MEMS device, and an encapsulation wafer with a first cavity and a second cavity, which includes at least one channel, can be provided. The first MEMS can be encapsulated within the first cavity and the second MEMS device can be encapsulated within the second cavity. These devices can be encapsulated within a provided first encapsulation environment at a first air pressure, encapsulating the first MEMS device within the first cavity at the first air pressure. The second MEMS device within the second cavity can then be subjected to a provided second encapsulating environment at a second air pressure via the channel of the second cavity.
Owner:MOVELLA INC

2D hydraulic-power-assisted electro-hydraulic proportional reversing valve

The invention provides a 2D (2-dimensional) hydraulic-power-assisted electro-hydraulic proportional reversing valve, which comprises a valve body, a valve core, a valve sleeve, a linear electro-mechanical converter and a compressive-torsional coupling, wherein the valve core, the compressive-torsional coupling and the linear electro-mechanical converter are coaxially connected; an output shaft of the linear electro-mechanical converter is fixedly connected with an input end of the compressive-torsional coupling; an output end of the compressive-torsional coupling is fixedly connected with the right end of the valve core; a sensitive cavity is formed by the left end of the valve core, the valve sleeve and a left cover plate; a pair of axisymmetric high pressure holes and a pair of axisymmetric low pressure holes are respectively formed on the surfaces of shoulders of the valve core in the sensitive cavity; a pair of axisymmetric sensing channels are arranged on the inner surface of the valve sleeve outside the sensitive cavity; and one end of each receptive channel is communicated with the sensitive cavity, and the other ends of the receptive channels cover areas between adjacent high pressure holes and low pressure holes. The 2D hydraulic-power-assisted electro-hydraulic proportional reversing valve not only has the characteristics of high flow rate, high working pressure, and the like of an ordinary pilot-control type electro-hydraulic proportional valve, but also fulfils a proportional control function like a direct-actuated proportional valve under the circumstance of zero pressure (pressure loss).
Owner:ZHEJIANG UNIV OF TECH

Irrigated finned ablation head

An irrigated finned ablation head that provides enhanced cooling. The irrigated finned ablation head comprises a plurality of radial fins that are distributed about a central axis and that extend axially from a common base. The plurality of fins are arranged to define a central passageway along the central axis, as well as a plurality of slots therebetween, the slots extending in an axial direction along the irrigated finned ablation head. In one embodiment, the central passageway extends through the irrigated finned ablation head, defining an opening at the distal extremity, with the slots extending from the base to the opening. In another embodiment, the irrigated finned ablation head includes a cap portion at a distal portion that is common to all the radial fins, so that the slots are terminated at the distal portion of the irrigated finned ablation head. The radial flow distribution along the central axis can be tailored by the configuration of the central passageway.
Owner:ST JUDE MEDICAL INT HLDG SARL

Coupling for coaxial connection of fluid conduits

A coupling is designed for sealingly connecting two fluid conduits such as automotive fluid lines in axial end-to-end relationship. The conduits have respective telescopically interengaging male and female end sections and the coupling comprises a base member to be carried on one of the fluid conduits and a retaining structure mounted on the base member and having two C-shaped arms which can be interconnected around the other conduit end section. A releasable lock acts between the arms to lock the retaining structure in engagement. In the locked condition the axially oriented abutment surfaces in the retaining structure engage peripheral shoulders on the conduits to prevent axial separation of the latter. The coupling can be fabricated from integral plastic components and preferably includes a guard arrangement to shield the releasable lock against inadvertent disengagement.
Owner:HALLA CLIMATE CONTROL CANADA

Thermal energy storage and recovery arrangement

A thermal energy storage and recovery arrangement is provided. The arrangement has a first thermal energy storage, a compression and expansion unit coupled thereto, and a second thermal energy storage coupled to the compression and expansion unit. The first and second thermal energy storage are adapted to work at a temperature equal to or higher than ambient temperature. In a charging mode, the first thermal energy storage is adapted for receiving and releasing thermal energy to a received working medium. The compression and expansion unit is adapted for receiving and compressing the working medium from the first thermal energy storage. The second thermal energy storage is adapted for receiving the compressed working medium and thermal energy therefrom and storing at least part of this energy. The compression and expansion unit is adapted for receiving the compressed working medium from the second thermal energy storage and expanding the compressed working medium.
Owner:SIEMENS AG

Absorption refrigeration cycles using a lgwp refrigerant

An absorptive refrigeration method that employs a refrigerant comprising one or more hydrofluoroolefin or hydrochlorofluoroolefin refrigerants, and an oil selected from the group consisting of a polyalkyene glycol oil, a poly alpha olefin oil, a mineral oil and a polyolester oil.
Owner:HONEYWELL INT INC

Bidirectional oil discharge type buoyancy regulating device for underwater robot

The invention relates to a buoyancy regulating device for an underwater robot, in particular to a bidirectional oil discharge type buoyancy regulating device for an underwater robot. The bidirectional oil discharge type buoyancy regulating device provided by the invention comprises an inner leather bag, a direct current motor, a solenoid valve, a one-way valve, a bidirectional gear pump, a stern end cover and an outer leather bag, wherein the stern end cover is in sealing connection with an underwater robot cylinder body; the outer leather bag is mounted outside the stern end cover; the inner leather bag, the direct current motor, the solenoid valve, the one-way valve and the bidirectional gear pump are respectively mounted in the underwater robot cylinder body; the inner leather bag is connected to the bidirectional gear pump driven by the direct current motor through a pipeline; and the solenoid valve and the one-way valve are in parallel connection between the bidirectional gear pump and the outer leather bag through a pipeline. According to the invention, the bidirectional gear pump is driven by the direct current motor and the oil discharge or backflow is realized by means of the positive and negative rotation of the bidirectional gear pump, so as to regulate the buoyancy of the underwater robot. The buoyancy regulating device has a simple structure, is safe and reliable, and has strong buoyancy regulating capability. The maximum buoyancy regulating variable can be flexibly regulated just by regulating the volumes of inner and outer leather bags.
Owner:SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI

Compressed Gas Foam System

A compressed gas foam system is provided. The compressed gas foam system includes one or more optional fluid pumps, one or more mixing devices, one or more optional foam systems; one or more optional gas compressors, and a system controller. A method of using the compressed gas foam system is also provided.
Owner:GUSE JAMES D

Prestretching-pretwisting type full-bridge 2D electro-hydraulic proportional directional valve

Provided is a prestretching-pretwisting type full-bridge 2D electro-hydraulic proportional directional valve. Two ends of the 2D valve are respectively connected with linear electrical machinery converters through pressure-torsion couplings and springs, a spring 4 is mounted between a valve body and a slide wedge, and the pre-compression amount of the spring 4 is slightly larger than the travel of a valve core. A left sensitive cavity and a right sensitive cavity are formed between end portion shoulders and the valve body and between the slide wedge and the valve boy. A pair of high-pressure hole and low-pressure hole (a, b) and a pair of high-pressure hole and low-pressure hole (c, d) are formed in the end portion shoulders respectively, and the high-pressure hole and low-pressure hole (a, b) and the high-pressure hole and low-pressure hole (c, d) are respectively communicated with a port P and a port T through the inner holes of the valve core. A sensing channel c and a sensing channel f are formed in two ends of the wall of the inner hole of the valve body respectively, and are respectively communicated with the left sensitive cavity g and the right sensitive cavity h. The high-pressure holes and the lower-pressure holes of the end portion shoulders cross with the sensing channels to form two tiny opening areas, the two tiny opening areas are connected in series to form hydraulic resistance half bridges, and the pressure of the two end sensitive cavities is respectively controlled by the hydraulic resistance half bridges at two ends.
Owner:ZHEJIANG UNIV OF TECH

Intelligent scoring method and system for text objective question

An intelligent scoring method and system for a text objective question, the method comprising: acquiring an answer image of a text objective question (101); segmenting the answer image to obtain one or more segmentation results of an answer string to be identified (102); determining whether any of the segmentation results has the same number of characters as the standard answer (103); if no, the answer is determined to be wrong (106); otherwise, calculating identification confidence of the segmentation result having the same number of words as the standard answer, and / or calculating the identification confidence of respective characters in the segmentation result having the same number of words as the standard answer (104); determining whether the answer is correct according to the calculated identification confidence (105). The method can automatically score text objective questions, thus reducing consumption of human resource, and improving scoring efficiency and accuracy.
Owner:IFLYTEK CO LTD

Efficient constant-pressure-difference intermittent rotation extrusion abrasive flow polishing method

ActiveCN104526531ASolve the problem of high-efficiency uniform polishing of the surfaceHigh surface aerodynamic performanceEdge grinding machinesPolishing machinesHydraulic motorImpeller
The invention relates to an efficient constant-pressure-difference intermittent rotation extrusion abrasive flow polishing method and belongs to the technical field of automatic polishing of large-size complex-curved-surface type part intermittent rotation extrusion abrasive flows which are high in surface quality uniformity requirement. The method comprises that a gear is driven by a hydraulic motor to be meshed with a negative-clearance rotation disc bearing to perform rotation grinding polishing, seal rings are arranged at all connected faces to achieve high-pressure abrasive static seal, easily abrasive seal rings are arranged at the rotation friction positions special high-pressure abrasive seal rings and high-pressure abrasive seals are arranged at the piston abrasive extrusion positions to achieve high-pressure abrasive dynamic seal, and finally, high-pressure abrasive intermittent rotation grinding and polishing are achieved. The 'over-polishing' and 'rounding' phenomena of traditional abrasive flow extrusion are prevented, efficient precise uniform polishing of complex curved surfaces of impellers, blades and the like high in pneumatic performance and surface uniformity is achieved, and the surface roughness Ra of various complex parts can be reduced below 0.8.
Owner:珂尔默(东莞)制造技术有限公司

Reversible hydraulic pressure converter employing tubular valves

The reversible hydraulic pressure converter (1) employing tubular valves includes a medium-pressure stage (44) consisting of a medium-pressure cylinder (2) and a double-acting medium-pressure piston (3) the position of which is sent to a control computer of the converter (19) by a piston position sensor (14), the cylinder (2) and the piston (3) forming two medium-pressure chambers (5) that can be placed in communication with a medium-pressure inlet-outlet circuit (15) by at least one tubular valve (12), the converter (1) also including two high-pressure cylinders (9) each cooperating with a high-pressure piston (8) of smaller diameter and defining two high-pressure chambers (11) that can be placed in communication with a high-pressure inlet-outlet circuit (16) by at least one tubular valve (12), each of the various tubular valves (12) cooperating with an independent valve actuator (13).
Owner:RABHI VIANNEY

System having a fuel distributor and multiple fuel injectors

A system, which is used especially as a fuel injection system for the high-pressure injection in internal combustion engines, includes a fuel distributor and a plurality of fuel injectors. Each fuel injector is situated on a cup of the fuel distributor. At least one of the fuel injectors is fastened to the associated cup by a holding element. The holding element has an at least essentially straight first leg and an at least essentially straight second leg. The cup includes at least one recess, which extends through a wall of the cup. The first leg and the second leg are guided through the at least one recess. Furthermore, the connection sleeve of the fuel injector has a collar, which is braced on the first leg of the holding element and on the second leg of the holding element in order to secure the fuel injector on the cup. This makes it possible to fasten the fuel injector on the cup in a reliable manner.
Owner:ROBERT BOSCH GMBH

Pure water unloading overflow valve

The invention discloses a kind of pure water off-loading overflow valve consisting of a king pressure control valve and pure water electromagnet switching ball valve. The king pressure control valve consists of a king valve and a guide valve. The king valve plug having a secondary throttling cone valve structure with high pressure conduction is effective to restrain air muddy. The guide valve having cone valve structure with damping piston can increase motion damp and advance working stability of the overflow valve; constant pressure precision of the overflow valve is increased, if set constant liquid damp at the entrance of the guide valve. The electromagnet switching ball valve is generated by dry-type DC electromagnet, and is switched fast by mechanism of force amplification. The invention achieves zero leakage by sealing directly valve plug and valve cover, valve cover and valve body, improve static performance of the overflow valve by add valve port damper and achieve fast over-loading by electromagnets with larger thrust. The invention has characters of good versatility, integrated multifunction and being easy to standardize so as to fit to work under conditions of middle and high pressure water medium.
Owner:ZHEJIANG UNIV

Free piston engine

The invention provides a free piston engine, which comprises a cylinder block, a compression accumulator, a pump station and a piston assembly, and also comprises a first proportional overflow valve, a proportional pressure reducing valve, a proportional velocity regulating valve and a pressure sensor; a piston chamber in the cylinder block is divided into a combustion chamber, an air intake chamber, a balance chamber, a pump chamber and a compression chamber by the piston assembly. As a pipeline connected with two inlets of a compression main port and a compression starting port of the compression chamber and the compression accumulator is provided with the proportional pressure reducing valve, the proportional velocity regulating valve, a reversing valve, the proportional overflow valve and the pressure sensor, according to the detection signal of the pressure sensor connected with the compression accumulator, the reversing valve is switched between the compression accumulator and an oil supply accumulator, and therefore oil supply work on high and low-pressure two oil lines is completed by utilizing one hydraulic pump station; moreover, after hydraulic oil in the compression accumulator flows through the proportional pressure reducing valve, stable pressure can be obtained and supplied for the compression chamber, so that the pressure of the inlet of the compression chamber is stable.
Owner:HUAQIAO UNIVERSITY

Method and System for Cooling a Natural Gas Stream and Separating the Cooled Stream Into Various Fractions

A method for cooling a natural gas stream (CxHy) and separating the cooled gas stream into various fractions having different boiling points, such as methane, ethane, propane, butane and condensates, comprises: cooling the gas stream (1,2); and separating the cooled gas stream in an inlet separation tank (4); a fractionating column (7) in which a methane lean rich fluid fraction (CH4) is separated from a methane lean fluid fraction (C2+Hz); feeding at least part of the methane enriched fluid fraction from the inlet separation tank (4) into a cyclonic expansion and separation device (8), which preferably has an isentropic efficiency of expansion of at least 80%, such as a supersonic or transonic cyclone; and feeding the methane depleted fluid fraction from the cyclonic expansion and separation device (8) into the fractionating column (7) for further separation.
Owner:TWISTER BV

Leading type water pressure overflow valve

InactiveCN1619198AImprove job stabilityReduce working pressure differenceEqualizing valvesSafety valvesEngineeringValve seat
The present invention relates to a pilot type hydraulic overflow valve. Its main valve body has front end cover, in said main valve body a main valve seat, a main valve buckle, a main valve core and a main valve spring are set, and said pilot valve is formed from its valve seat, valve core and pressure-regulating spring, said pilot valve is connected with said main valve. Said invention also provides the structure of main valve and pilot valve, and provides the application range of said valve.
Owner:HUAZHONG UNIV OF SCI & TECH

Bandage with lengthwise elasticity in warp direction

A bandage with lengthwise elasticity in the warp direction, comprising a textile expanse woven in leno weave and having weft threads, leno threads and elastically extensible warp threads. The warp threads are cotton-elastic threads.
Owner:FIRMA KARL OTTO BRAUN KG

Air conditioner and controlling method therefor

The invention relates to an air conditioner, comprising indoor unit and outdoor unit. Indoor heat exchanger and air supply apparatus are set in the indoor unit. Thereinto, there is at least a heating device in the indoor device and the heating device runs during defrosting of said air conditioner. The heating device is set at the upstream or downstream of indoor heat exchanger. The invention provides a control method of air conditioner. The method comprises defrosting of air conditioner when achieving the condition of defrosting and running of heating device at least when said air conditioner defrosts. The air conditioner and the control method of invention can shorten the defrosting time and make the indoor temperature not decrease. Furthermore, it can make the temperature in door improve quickly under the low temperature.
Owner:PANASONIC CORP

Pre-tensioning - pre-twisting full-bridge 2D electro-hydraulic proportional directional valve

Provided is a pre-tensioning - pre-twisting full-bridge 2D electro-hydraulic proportional directional valve. The two ends of the 2D valve are both connected with linear electro-mechanical converters through pressure-torsion couplings and springs. The cylindrical compression springs are mounted between a valve body and sliding wedges, and the precompression amount is slightly larger than a valve core stroke. A left sensitive cavity and a right sensitive cavity are formed between end portion circular beads and end covers of a valve core and the valve body. The end portion circular beads of the valve core are provided with a pair of high pressure hole and low pressure hole (b and d) and a pair of high pressure hole and low pressure hole (c and e) respectively, and the high pressure holes and the low pressure holes are communicated with a P opening and a T opening respectively through a valve core inner hole. A sensitive channel (f) and a sensitive channel (g) are formed in the two ends of the wall of the valve body inner hole respectively and are communicated with the left sensitive cavity (h) and the right sensitive cavity (j) respectively. The high pressure holes and the low pressure holes in the end portion circular beads intersect with the sensitive channels to form two tiny openings, and are in series connection with the sensitive channels to form hydraulic resistance half bridges. The pressure of the sensitive cavities in the two ends is controlled by the hydraulic resistance half bridges at the two ends respectively.
Owner:ZHEJIANG UNIV OF TECH

Vacuum pressure casting machine for magnesium alloy

The invention belongs to metal casting device. The magnesium alloy cast is complex, and the performance is bad. The invention is a magnesium alloy casting device which fills shape in vacuum state and solidifies them in various pressure state. It can realize the optimized casting process condition, it can be applied to produce each kind of large, complex, thin magnesium alloy casting piece with precise size and high thickness.
Owner:李书伟 +2

Nozzle device and nozzle for atomisation and/or filtration and methods for using the same

Nozzle device and nozzle for atomization and / or filtration as well as methods for using the same. The nozzle and nozzle device for atomization, in particular a micro-machined reinforced nozzle plate, may produce small liquid droplets in air (spray) or into a liquid (emulsion) with a narrow droplet size distribution and make small air bubbles into a liquid (foam). A nozzle part for filtration as well as elements and methods to facilitate atomization and filtration are also disclosed.
Owner:MEDSPRAY

Pilot proportional reversing valve

InactiveCN101713420AHigh work pressureAffects left and right movementServomotor componentsEngineeringControl valves
The invention discloses a pilot proportional reversing valve, which comprises a main valve body and a pilot control valve arranged on the main valve body, wherein both ends of the main valve body are provided with a left end cover and a right end cover; and a main valve core and a main spring are arranged in the main valve body. The pilot proportional reversing valve is characterized in that: the pilot control valve comprises a pilot valve body and a left and a right proportion electro-magnets arranged at both ends of the pilot valve body; and a proportional reducing valve is arranged between the main valve body and the pilot valve body. The pilot proportional directional valve has the advantages of simplified structure, low cost, reduction of extravasation link, good spring guidance, high reliability and strong capability of resisting oil pollution.
Owner:SHANGHAI LIXIN HYDRAULIC

Process for forming light-weight and high-pressure gas bottle made of composite material

InactiveCN102211405ALow reliabilityLightweight and High ReliabilityHollow articlesEpoxyWorking pressure
The invention relates to a process for forming a gas bottle made of a composite material, which comprises the following concrete steps of: 1. treating an outer surface of a metal liner of the gas bottle; 2. preparing to obtain epoxy resin glue; 3. infiltrating continuous fiber in the epoxy resin glue prepared in the step two at 20-30 DEG C; 4. winding the continuous fiber, winding the metal liner treated in the step one by using the continuous fiber infiltrated in the step three, wherein the metal liner is alternately annularly and longitudinally wound 8-10 times, 2-8 layers of continuous fiber are wound in the annular direction or the longitudinal direction every time, and the winding tension is 40-50N per strand; and 5. curing the composite material. The light-weight and high-pressure gas bottle made of the composite material and produced by using the process provided by the invention has the advantages of light weight, high reliability, low cost and high working pressure and fatigue times.
Owner:AEROSPACE RES INST OF MATERIAL & PROCESSING TECH

Special hair darkening and strengthening shampoo for men

ActiveCN101822627ASolve yellowish and whiteSolve the problem of fragile and easy to fallCosmetic preparationsHair cosmeticsChinese herbsDandruff
The invention discloses special hair darkening and strengthening shampoo for men; Chinese medicine extract is added into a prepared shampoo matrix main component, mixed and stirred uniformly, and the special hair darkening and strengthening shampoo for men is obtained; the formula comprises the following components in parts by weight: 75 to 85 parts of shampoo matrix main component and 15 to 25 parts of Chinese medicine extract; the Chinese medicine extract is prepared from the following raw materials in parts by weight which are mixed: 10 to 20 parts of radix-polygoni multiflori extract, 10 to 20 parts of ligustrum lucidum extract, 5 to 15 parts of rehmannia extract, 5 to 15 parts of mulberry extract, and 5 to 15 parts of peach kernel extract. The Chinese medicine extract essence contained in the shampoo has the function of darkening hair by activating tyrosinase activity and promoting the generation of hair melanin. In addition, the special hair darkening and strengthening shampoo for men also has the functions of nourishing scalp, strengthening and softening the hair, and darkening and thickening hair, and can effectively solve the problems that the air of men are yellow, white, frail and easy to fall off.
Owner:霸王(广州)有限公司

Medium and high temperature heat collecting tube for internal concentrated light and volume reduction solar energy and its manufacturing method

The invention relates to an internal-condensation capacity-reducing solar medium and high temperature heat collection pipe and a method for manufacturing the same. The heat collection pipe comprises a vacuum internal-condensation solar heat collector, wherein the vacuum internal-condensation solar heat collector consists of an outer cover tube which is made of a light-transmitting material, a heat absorption tube which is coaxial with the outer cover tube and a composite parabolic reflecting plate which is assembled between the outer cover tube and the heat absorption tube; a heat energy conductor is arranged in the vacuum internal-condensation solar heat collector; the heat energy conductor consists of a metal sleeve, a metal flow guide cavity tube which is assembled in the metal sleeve, and heat conduction media which are filled in the metal sleeve and the metal flow guide cavity tube; the metal sleeve is inserted into an internal cavity of the heat absorption tube and tightly contacted with the heat absorption tube; and a heat conduction heat medium transmission path is formed between the metal flow guide cavity tube and the metal sleeve. The preparation steps of the high temperature heat collection pipe are as following: manufacturing focus solar collector in vacuum, processing heat sensor, and then assembling and moulding. The internal-condensation capacity-reducing solar medium and high temperature heat collection pipe is high in heat collection efficiency, high in heat transfer speed and safe, and can convert solar energy into a medium and high temperature heat source for use.
Owner:河北光源太阳能有限公司
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