47results about How to "Guaranteed heat exchange" patented technology

The invention relates to a pure titanium two-step plastic deformation processing method in the technical field of metallic material plastic deformation; the method comprises the following steps: level-3 industrial pure titanium block is taken as the raw material, after being coated with graphite lubricant, the material is extruded on a 300KN hydraulic pressure universal experimental machine and then is subjected to rolling treatment at liquid nitrogen temperature to carry out deformation treatment on submicron crystal industrially pure titanium block, thus obtaining the superfine crystal pure titanium. The superfine crystal pure titanium of the invention features a tensile strength of 1218MPa and a specific elongation of 12.6%.

The invention provides a method for measuring the temperature of a medium, wherein the medium is in contact with at least one heating device. The heating device comprises at least one PTC element. At least one parameter of the characteristics of the current and / or the voltage and / or the resistance of the PTC element during the operation of the heating device is detected. From these detected values is at least formed a conductance. From the time-dependent conductance is formed at least one predictor, which is evaluated to draw conclusions about the temperature of the medium.

An external bed type double-fluidized bed system for preventing boiler contamination includes a fluidized bed combustion furnace, a cyclone separator, a coal ash distributor and a fluidized bed pyrolysis furnace. The fluidized bed combustion furnace is connected with the coal ash distributor, the coal ash distributor is connected with the coal ash inlet on a side wall of the fluidized bed combustion furnace through a return feeder with which the coal ash outlet of the fluidized bed pyrolysis furnace is also connected through an external bed, and the return feeder is connected with the fluidized bed combustion furnace. A fuel coal is pyrolyzed in the fluidized bed pyrolysis furnace at a temperature to volatize alkali chlorides into a pyrolysis gas, thereby reducing the content of the alkali chlorides contained in the coal in the fluidized bed combustion furnace and relieving the contamination to a convective heat-absorbing surface.

The invention discloses a multi-unit cubic star main load-bearing structure based on a carbon fiber composite. The multi-unit cubic star main load-bearing structure comprises a box, supporting corners, first fixing frames, second fixing frames, bolts and a metal cover plate, wherein four bolts are distributed in a trapezoid form; the first fixing frames are respectively arranged at the two ends of the bolts; the second fixing frames are arranged in the middle of the bolts; the four bolts, the first fixing frames and the second fixing frames are formed into a load-bearing frame; the box is arranged as the box without cover on one side; the load-bearing frame is arranged in the box; the metal cover plate is arranged at a cover-free end of the box; the supporting corners are respectively arranged at the four corners of the top and bottom of the box. According to the invention, the cubic star is lightweight, the structure strength and rigidity are promoted and the thermal control problem is solved.

The invention discloses a low-temperature radiometer for a laboratory, and particularly relates to the technical field of low-temperature radiation. The low-temperature radiometer solves the problemsthat the existing low-temperature radiometer mostly uses liquid nitrogen-liquid helium refrigeration, so that the cost is high, and the number of starting up and use times is limited. The low-temperature radiometer for the laboratory comprises a refrigerating machine, wherein a primary cold head and a secondary cold head are connected onto the refrigerating machine; a vacuum support frame is arranged outside the refrigerating machine; the upper part of the vacuum support frame is connected with a vacuum cover; a primary cold screen, a secondary cold screen, a sample low-temperature cold screenand a sample table are fixed in the vacuum cover; the primary cold head is connected with the primary cold screen; the secondary cold head is connected with the secondary cold screen; the sample table is connected with the sample low-temperature cold screen; the secondary cold head is connected with a cold disc through a high-conductivity flexible cold conducting structure, and is used for isolating the vibration of the refrigerating machine; an absorption cavity heat shielding structure is arranged on the cold disc; an absorption cavity is formed in a position of the absorption cavity heat shielding structure; and an electric heating wire and a thermistor used for temperature measurement are arranged at the outer side of the absorption cavity.

The invention provides a method for preparing a water cooling plate. The method comprises the steps that a substrate is provided, and a groove is milled in the surface of the substrate; a copper tube is provided, and the copper tube is embedded in the groove; a filling body is provided, the filling body is poured into the groove under a heating condition, and the groove is full of the filling body; the filling body is mechanically ground, and the surface of the substrate is kept flat; a water inlet joint and a water outlet joint are mounted at the two ends of the copper tube respectively. According to the method for preparing the water cooling plate, the copper tube is embedded in the substrate to be used as a cooling liquid channel, and the copper tube can not be likely to be in chemical reaction with cooling liquid, so that substances with the very low thermal conductivity are prevented from being accumulated on the wall face of a pipeline, the heat exchange between the cooling plate and the cooling liquid is guaranteed, the good cooling effect can be kept for a long time, the reliability of the water cooling plate is improved, the filling body is poured in the groove, the copper tube can be fixed, and the flatness of the surface of the substrate can also be guaranteed.

The invention discloses an ultralow-temperature moulding device and method for aluminum and lithium alloy complex curved-surface thin-walled components. The moulding device comprises a copious coolingtank, a control cabinet, a liquid nitrogen container, a solenoid valve group, a male mould, a female mould, a temperature detector and an edge pressing device; the male mould, the female mould, the temperature detector and the edge pressing device are arranged in the copious cooling tank; the solenoid valve group is arranged on a pipeline which connects the liquid nitrogen container and the copious cooling tank; the solenoid valve group and the temperature detector are both electrically connected to the control cabinet; the edge pressing device is arranged to be capable of pressing a plate blank between the male mould and the female mould; and a tank door is arranged on the copious cooling tank. By adopting a cooling device of the ultralow-temperature moulding device, temperature can be maintained unchanged at any temperature between 0 DEG C to minus 180 DEG C during a moulding process; an ultralow-temperature energy field is provided for the moulding process, so that moulding capability of aluminum and lithium alloy thin plates is greatly improved; deforming is more uniform; thinning and partial corrugating during the moulding process are reduced; and breakage of the components during the moulding process is avoided.

The invention relates to a cooking range generating steam by using waste heat. The cooking range a furnace body, a furnace head and a water tank, wherein the furnace body is combined by an inner furnace wall and an outer furnace wall; a hollow region surrounded by the inner furnace wall is a hearth; a plurality of tubular fire bars are uniformly arranged below the hearth at intervals in the furnace body; the furnace head comprises an outer furnace ring, an inner furnace ring and a pot body supporting ring; the lower end of the inner furnace ring is connected to the inner furnace wall; the lower end of the pot body supporting ring is connected to the outer furnace wall; a cavity among the inner wall furnace, the outer wall furnace and the furnace head is a heating cavity; a coil surrounding the hearth is arranged in the heating cavity; a steam pipe communicating with the top of the heating cavity is arranged in the upper part of the water tank; a water outlet pipe communicating with the bottom of the heating cavity is arranged in the lower part of the water tank; a gas outlet pipe is arranged on the top of the water tank; a water inlet is formed between the steam pipe and the water outlet pipe on the water tank; and a float ball water inlet valve is arranged on the water inlet. The cooking range provided by the invention realizes efficient recovery of smoke heat and automatic control of water inflow in a stove using process.

The invention relates to a method for high-density culture of hermetia illucens larvae and high-efficiency transformation of organic wastes. By improving a culture container, air circulation and heatexchange are increased, and thus high-density culture of hermetia illucens and high-efficiency transformation of the organic wastes are realized by using a culture medium prepared by crop straw particles and kitchen wastes or poultry and livestock manure. The method effectively avoids burning of crop straws, contributes to environmental protection, and reduces culture cost of hermetia illucens. The method has important values and significances for realizing large scale and industrialized culture of hermetia illucens.

The invention relates to a plate type heat exchanger with gas phase and liquid phase heat exchange and resistance to high pressure. The plate type heat exchanger comprises a plurality of heat exchange modules composed of heat exchange plate components, wherein each heat exchange plate component comprises a gas-phase medium heat exchange plate component and a liquid-phase heat exchange plate component; the gas-phase medium heat exchange plate component comprises non-metal heat exchange plates, and supporting ribs are mounted on the surfaces of the non-metal heat exchange plates; sealing strips are arranged at the upper edge and the lower edge of each side of each non-metal heat exchange plate; upper supporting ribs, lower supporting ribs and the sealing strips are respectively fixedly connected among the non-metal heat exchange plates, and the adjacent non-metal heat exchange plates, the sealing strips ad gaskets encircle a plurality of gas-phase medium channels through pressing force; a liquid-phase medium channel is formed in the liquid-phase heat exchange plate component. The plate type heat exchanger has the advantages of the conventional plate type heat exchanger, also recycles waste heat in flue gas of a heating function, and can lower the temperature of flue gas and enable the flue gas to resist to corrosion.

The invention discloses a semiconductor refrigeration system. The system comprises a semiconductor refrigeration piece, a cold conduction block attached to the cold end face of the semiconductor refrigeration piece, a metal aluminum inner container attached to one surface, far away from the semiconductor refrigeration piece, of the cold conduction block, a heat radiator attached to the heat end face of the semiconductor refrigeration piece, the size of one face, attached to the semiconductor chilling plate, of the cooling block is the same as the size of one face, attached to the semiconductorchilling plate, of the cooling block, and the area, attached to one face, of the cooling block and the metal aluminum liner is larger than that of one face, which is attached to the semiconductor chilling plate, of the cooling block. According to the scheme, compared with the prior art, the area of lamination of the cold guide block and the metal aluminum liner is increased, so that the heat exchange efficiency of the cold guide block and the metal aluminum liner is improved.

A dual-bed system for preventing a boiler heating surface from being contaminated comprises a fluidized bed, a cyclone separator, a coal ash distributor, an ash-coal mixer, a lower pyrolysis bed, a return feeder and a cleaner, wherein the cyclone separator is connected with the upper lateral side of the fluidized bed; the inlet end of the coal ash distributor; the two outlets of the coal ash distributor are respectively connected with the inlet of the return feeder and the inlet of the ash-coal mixer; the outlet of the ash-coal mixer is connected with the inlet of the lower pyrolysis bed; the return feeder close to the lower lateral side of the fluidized bed is connected with the inlet on the lower lateral side of the fluidized bed; and the outlet of the cleaner is connected with the inlet on the lower lateral side of the fluidized bed.

The invention relates to an outdoor integrated uninterruptible power supply cabinet and a workbench provided with a clamping device, and belongs to the technical field of outdoor UPS cabinets. The cabinet comprises a machine box with one open side and a cabinet door hinged to the open side of the machine box. A plurality of heat preservation cotton is laid on an inner wall of the machine box, a heat dissipation device is arranged at an upper end of the machine box, a rainproof top cover connected with the heat dissipation device is arranged at a top of the machine box, the rainproof top coveris connected with the outside, and a plurality of air inlets connected with an inner portion of the machine box are arranged in a lower end of the cabinet door. The heat preservation cotton is arranged on the inner wall of the machine box so that an influence of external temperature on the temperature of equipment in the machine box is reduced, and a service life of the machine box is prolonged.

The present invention discloses a jelly gel making device, and the jelly gel making device comprises a material liquid tube, a cooling tube, a conveying pump and a cutter assembly. The material liquidtube is provided with a material charging inlet, a material discharging outlet and a material liquid passage extending from the material charging inlet to the material discharging outlet; the coolingtube is arranged on the peripheral surface of the material liquid tube in a sleeving mode to cool jelly material liquid in the material liquid tube to jelly gel; the conveying pump is arranged at thematerial charging inlet of the material liquid tube to pump the jelly material liquid into the material liquid tube; and the cutter assembly is arranged at the material discharging outlet of the material liquid tube to dice or slice the jelly gel from the material discharging outlet. The device can complete the cooling of the jelly material liquid and the dicing or slicing of the jelly gel once,thus simplifying making steps of the jelly gel, improving production efficiency and reducing production cost.

The invention discloses an anti-freezing ultralow-temperature refrigerating system and a using method thereof. The anti-freezing ultralow-temperature refrigerating system comprises a first refrigeration assembly and a second refrigeration assembly, the first refrigeration assembly and the second refrigeration assembly each comprise a compressor, a condenser, an evaporator and a capillary tube, andthe evaporator of the first refrigeration assembly and the condenser of the second refrigeration assembly are correspondingly arranged; and the anti-freezing ultralow-temperature refrigerating systemfurther comprises a heating assembly arranged on the first refrigeration assembly. By means of the anti-freezing ultralow-temperature refrigerating system and the using method, the first refrigeration assembly is communicated with the heating assembly to preheat the capillary tube of the second refrigeration assembly, and blockage caused by precipitation and solidification of lubricating oil in the capillary tubes at the lower temperature is avoided.

The invention discloses a steel top piston for a large-cylinder-diameter gas engine, relates to the technical field of gas engine pistons, and solves the technical problem of an all-aluminum or all-steel piston in the using process. The piston adopts a structure of a steel top and an iron skirt, an internal cooling oil cavity in the piston communicates with an oil return cavity through a pluralityof channels, an oil return hole used for communicating the oil return cavity and an inner cavity of a piston skirt is arranged at the top end of the piston skirt, and the height of an orifice of theoil return hole is higher than the bottom surface of the oil return cavity and the bottom surfaces of the channels; a sunken combustion chamber is arranged at the top end of a piston head, and a bulgeis arranged in the combustion chamber; and the piston head is connected with the piston skirt through a connecting assembly. The steel top piston for the large-cylinder-diameter gas engine is high inreliability and lower in cost in comparison with the all-steel piston, good heat exchange performance inside the piston is ensured, the reliability of the piston and the combustion efficiency of fuelgas are improved, the squish speed of mixed gas is further improved, the combustion speed is accelerated, the stagnation period is shortened, and more perfect combustion is ensured.