48results about How to "Eliminate temperature differences" patented technology

The invention discloses a large-power LED lamp heat radiator with fins having functions of heat pipes, which comprises a metallic heat radiating body and at least one metallic heat radiating fin, wherein the metallic heat radiating body and the metallic heat radiating fin are both in a hollow structure; a first hollow cavity in the interior of the metallic heat radiating body is communicated with a second hollow cavity in the interior of the metallic heat radiating fin to form an intercommunicated closed type inner cavity body; a heat pipe fluid absorbing core is arranged on the inner wall of the closed type inner cavity body, and operating fluid is filled in the heat pipe fluid absorbing core; the heat radiating body and the metallic heat radiating fin correspondingly form an integrated heat pipe for heat exchange; the inner wall of the heat radiating body and the inner wall of the metallic heat radiating fin form a pipe shell of the integrated heat pipe; and the heat radiating body and the metallic heat radiating fin have functions of heat pipes. The invention has the advantages of simple and reasonable structure, small volume, convenient processing, manufacture, installation and arrangement, large heat radiating area, high heat conduction coefficient and good heat radiating performance, and can effectively solve the heat radiating problem of large-power LED lamps.

A drying device comprising a drying chamber, a fan, a circulation flow path, and a heat pump. The heat pump comprises a compressor, an evaporator, a condenser, a pressure reducing valve, a pipe path, an upstream heat exchanger provided in the circulation flow path at a position between the drying chamber and the evaporator and exchanging heat with air for drying, a downstream heat exchanger provided between the evaporator and the condenser and exchanging heat with the air for drying, and a heat moving section for circulating a heat medium to the upstream heat exchanger and the downstream heat exchanger. The drying device is configured so that the heat of the air for drying is moved from the upstream heat exchanger to the downstream heat exchanger through the heat medium.

A battery (100, 200, 300), a heat management apparatus (101, 301) thereof and a UAV (10) having the battery. The heat management apparatus (101, 301) comprises: a heat conduction shell (110, 210, 220, 310) having an accommodation cavity (311), and at least one heat conduction frame (320) mounted inside the accommodation cavity (311), wherein the heat conduction frame (320) is connected to an inner wall of the accommodation cavity (311) in a heat-conducting manner, so that the heat of the heat conduction frame (320) can be conducted to the heat conduction shell (110, 210, 220, 310); the heat conduction frame (320) divides the accommodation cavity (311) into multiple battery cell bin positions (120, 330) for accommodating battery cells (103, 303); and the heat conduction frame (320) can be in contact with the battery cells (103, 303) so as to conduct the heat generated by the battery cells (103, 303). The above-mentioned heat management apparatus (101, 301) has the advantages of being able to improve the service life of a battery and eliminate a temperature difference between two adjacent battery cells (103, 303), a smaller volume, a lighter weight, a lower cost and less limitation on the selection of a battery.

The invention discloses a heat treatment device for a round-link chain and an application method thereof. The device comprises a quenching part and a tempering part which are sequentially arranged, wherein first cooling parts are arranged at the quenching part and the tempering part; the quenching part is provided with a quenching temperature regulating box; the tempering part is sequentially provided with an uniform-temperature tempering heating box, at least one tempering temperature regulating box and a differential-temperature tempering heating box; the quenching temperature regulating box is provided with a second cooling part. The device has the characteristics of being high in integration degree and high in working efficiency; after the round-link chain is quenched, an uniform and small low-carbon lath martensite structure can be obtained; the quenching quality is high; the second cooling part and the first cooling parts are correspondingly connected to a cooling source, so that the cooling quality can be improved, and the requirements of each part of the round-link chain on hardness and toughness can be met.

A heat collection and storage wall and air-water heat collector combined heating system comprises a heat collection and storage wall. The heat collection and storage wall is arranged on the outer sideface of a house. Air in the heat collection and storage wall is connected with an air inlet of an air-water heat collector through an air inlet pipeline under the effect of a draught fan. The air-water heat collector comprises a water outlet. The water outlet is connected with a coil pipe of a phase change heat storage floor through a water outlet pipeline, wherein the phase change heat storage floor is arranged on a bottom plate. The water outlet pipeline is provided with a first electric three-way joint. The first electric three-way joint is connected with a domestic hot water device through a pipeline. Temperature sensors used for sensing temperature are arranged in rooms. The air-water heat collector is connected with the first electric three-way joint. The heat collection and storagewall and air-water heat collector combined heating system can store heat and has all-day heating capacity, temperature differences between the south rooms and the north rooms are eliminated, and by means of the heat collection and storage wall and air-water heat collector combined heating system, the heat collector is protected against super-cooling and overheating.

A titanium-alloy-plate tandem-rolling temperature controlling device comprises annular induction coils, supporting frames, stone boxes, trusses, supports and colorimetric pyrometers. The trusses are arranged in front of rolling rollers correspondingly, each two colorimetric pyrometers are arranged on a cross beam of the corresponding truss, each colorimetric pyrometer is arranged on a vertical beam of one side of the corresponding truss, and the included angle of each colorimetric pyrometer and the titanium-alloy-plate surface can be adjusted; the supporting frames are arranged on the positions which are away from the trusses for 2 meters correspondingly, the stone boxes are fixed on the supporting frames, a rolled titanium-alloy plate passes from the inner portions of the stone boxes, and annular induction coil sets are arranged on the upper surfaces, the lower surfaces and the side surfaces of the two sides of the inner portion of each stone box; and the annular induction coil sets are all away from the surface of the titanium-alloy plate for 2 centimeters, each set of the annular induction coil sets comprises 3 annular induction coils, and the annular induction coils can heat the plate edge of the titanium-alloy plate after being electrified. According to the titanium-alloy-plate tandem-rolling temperature controlling device, the temperature difference in the titanium-alloy plate in the whole tandem-rolling process can be eliminated, the temperature of the titanium-alloy plate in the rolling process can be accurately controlled, and warping of panels is avoided.

The invention provides a fuel cell stack device, belongs to the technical field of fuel cells, and solves the problem that the use performance and the service life of a stack are affected due to overlarge working state difference of single cells at different positions in the prior art. The device comprises a plurality of single batteries which are stacked into a whole, and a false battery, a collector plate, an insulating plate and an end plate which are sequentially stacked on the outer sides of the first battery and the last battery respectively. Wherein the false battery adopts a sheet structure and comprises a bipolar plate, a membrane electrode without a catalyst, a cathode and an anode gas flow channel. And in the false battery, the membrane electrode is arranged in the middle of the bipolar plate so as to isolate the cathode gas flow channel and the anode gas flow channel on the two sides of the bipolar plate. And a cathode gas flow channel, an anode gas flow channel and a water flow channel are arranged in the bipolar plate in the false battery. And a state detection sensor for measuring the internal state of the false battery is arranged in the cathode and anode gas flow channel or the water flow channel. According to the device, the integrated function design of condensed water removal and inter-sheet working difference adjustment can be realized.

The invention discloses a preparation method of a two-dimensional perovskite single crystal with high luminescence purity. A hydrothermal technology is introduced into a solution cooling method to prepare a (BA) 2PbI4 single crystal. As the temperature in the hydrothermal kettle is uniform, the temperature difference between the inside and the outside of the crystal can be eliminated; in the growth process of the (BA) 2PbI4 single crystal, BA organic cations tend to be arranged in order due to the fact that the BA 2PbI4 single crystal bears gas pressure, accumulation of the cations is avoided,and thus the double photoluminescence phenomenon of the two-dimensional (BA) 2PbI4 single crystal is eliminated, and the luminescence purity of the two-dimensional (BA) 2PbI4 single crystal is improved. The (BA) 2PbI4 crystal prepared by adopting a hydrothermal auxiliary solution cooling method is a lamellar lamellar single crystal. The structure of the [PbI6] 4-octahedron is an orthogonal crystal structure. Compared with a (BA) 2PbI4 crystal prepared by a solution cooling method in the prior art, the luminescence purity of the sample prepared by the method is obviously improved.

The invention provides a method for controlling asymmetric flatness of oriented silicon steel. The method comprises the steps of controlling charging temperature of an oriented silicon steel slab to be greater than 350 DEG C, controlling preheating temperature to be 800-950 DEG C, controlling temperature of a first heating zone to be 1070-1090 DEG C, controlling temperature of a second heating zone to be 1130-1150 DEG C, and controlling temperature of a soaking zone to be 1120-1130 DEG C; controlling furnace pressure to be 25-35 pa; controlling a rough rolling mode to be a '0+5' rolling mode;determining roll gap leveling values of a first finish rolling rack and a second finish rolling rack, wherein variation amount of slab camber is less than 5 mm; controlling threading directions of theslab on the first finish rolling rack, the second finish rolling rack and a third finish rolling rack; and in the layer cooling process, controlling speed of a laminar flow roller table to be greaterthan 14% that of strip steel, controlling accelerated speed of the strip steel to be 0.25 m/s<2>, and controlling acceleration starting point of the strip steel to be located in the position where ahead of the strip steel is 49-50 m away from an outlet of a seventh finish rolling rack.

The invention discloses a perturbator structure for a gas-phase aldehyde hydrogenation reactor. The structure comprises a pipe body; a cavity is formed in the pipe body; first partition plates are arranged in the cavity; an air inlet is formed in one side of the upper part of the pipe body; air outlet is formed in one side of the lower part of the pipe body, and the air inlet and the air outlet are both located between the two first partition plates. A plurality of tiny pipes are fixedly arranged between two first partition plates in a penetrating manner; and the upper part and the lower partof the pipe body are both provided with a through opening used for enabling a heat carrier to circulate inside and outside the pipe body. A disturbance structure is arranged on the pipe body; throughthe perturbator structure for a gas-phase aldehyde hydrogenation reactor, the disturbance structure is adopted; a conventional technology is optimized, the heat carrier can enter the cavity from the two ends of the pipe body at the same time; furthermore, the heat removed from the upper part of the pipe body is the same as the heat removed from the lower part of the pipe body, the temperature difference between the upper part and the lower part of the pipe body is eliminated, the selectivity of a catalyst in the upper part of the pipe body is guaranteed, the service life of the catalyst is ensured, the excess temperature of the upper part of the pipe body is prevented, and thus the production of alcohol is guaranteed.

The invention discloses a preparation method of a ZnO nano porous sheet cluster. The reparation method comprises the steps of mixing raw materials, namely zinc nitrate and urea, with water, adding the mixture to a cylindrical container having the inner diameter of 10-50mm, sealing, heating to the range of 80-100 DEG C for reacting under normal pressure for 1-15h, and finally, performing filtering, drying and roasting treatment to obtain the ZnO nano porous sheet cluster. The cylindrical reactor with the special inner diameter is adopted for the preparation method of the ZnO nano porous sheet cluster so that the ZnO nano porous sheet cluster can be prepared by reacting the zinc nitrate with the urea under the condition of a high Zn<2+> concentration, and therefore, the production efficiency of ZnO can be improved.

The invention discloses a pretreatment refining method for a broad width silk fabric and belongs to the technical field of silk product pretreatment. The pretreatment refining method is characterizedby comprising the following treatment steps of charging water in a dyeing groove on a vehicle, performing heating to 58-63 DEG C, performing running for 2 passes, and draining off water; after preheating a large shaft, adding hot water with the temperature being 96-99 DEG C in the dyeing groove, and adding a refining additive; sealing a cover, performing running for 4 passes, and draining off thewater; performing washing for 3 passes with the hot water at the temperature of 96-99 DEG C, and then pouring the shaft with cold water; adding water in the dyeing groove, adding baking soda and desizing powder ZS-20 to prepare a refined solution, performing crystal form refining, performing running for 5-6 passes, and performing 4 cycles of back vehicles; and performing washing for 2 passes withthe hot water at the temperature of 96-99 DEG C, and then pouring the shaft with the cold water. The invention provides the pretreatment refining method aiming to the broad width silk fabric and mainly solves the defects of hard hand feeling of a head and a tail and different hand feelings at the left part and the right part of degumming of a silk fabric on a jig dyeing machine.

The invention discloses a radial flow fixed bed catalytic reactor for producing oxalate through CO carbonylation coupling. The reactor comprises a cylindrical vessel composed of an upper end socket, acylindrical barrel and a lower end socket in sequence from top to bottom. A reaction gas feeding port, a reaction gas discharging port, a heat exchange medium inlet, a heat exchange medium outlet, acatalyst feeding port and a catalyst discharging port are formed in the outer portion of the cylindrical vessel. The catalytic bed layer is divided into a heat insulation area and a heat exchange areafrom inside to outside, and the heat exchange area is provided with multiple groups of heat exchange tubes which are concentrically arranged in two rows as a group. The radial flow fixed bed catalytic reactor for producing oxalate through CO carbonylation coupling has the characteristics of uniform distribution of reaction gas along the axial direction, reasonable bed layer temperature distribution, high catalyst utilization rate, small reactor pressure drop and the like, is suitable for a reaction for producing oxalate through carbonylation coupling, and is also suitable for other exothermicgas-solid phase catalytic reactions.

The invention relates to the technical field of extraction, in particular to a supercritical CO2 extraction method of black tea, which comprises the following steps: a phase change step: pressurizing and heating liquid CO2 to change the liquid CO2 phase into a supercritical state; an extraction step: carrying out mixed extraction on the black tea by using CO2 in a supercritical state in a first preset pressure environment; a separation step: in a second preset pressure environment, performing multi-stage heating depressurization separation on the CO2 containing the black tea extract; and a recovery step: collecting the separated black tea extract, and filtering and condensing the separated gas CO2 to recover the gas CO2 into liquid CO2. According to the scheme, the solubility of the extract in supercritical CO2 can be increased, and CO2 is recycled, so that the extraction effect is improved, and the extraction cost is reduced.

The embodiment of the invention provides a penis pacemaker and a control method of the penis pacemaker. The penis pacemaker provided by the embodiment of the invention comprises a penis implantation mechanism, a liquid storage chamber, catheters and a pump, wherein the penis implantation mechanism is used between the subcutaneous part of the penis and the cavernous body, and the penis implantationmechanism is provided with a hollow cavity, and is fixed to the near end of the penis in a manner of being capable of stretching out and contracting axially; liquid is stored in the liquid storage chamber, and the liquid storage chamber communicates with the cavity of the penis implantation mechanism through at least one catheter; the pump is coupled to the liquid storage chamber and the penis implantation mechanism, and the pump is used for providing power for the transmission of liquid between the liquid storage chamber and the penis implantation mechanism.

The invention belongs to a manufacturing device and method of a three-dimensional porous material, and particularly relates to a foam metal electroplating device and method. The foam metal electroplating device comprises an electroplating bath with electroplating liquid, an anode, a cathode to be electroplated and guide rollers, wherein the anode is arranged in the electroplating bath, and the cathode to be electroplated enters the electroplating bath through the guide rollers. The foam metal electroplating device further comprises a sprinkling device for sprinkling the cathode to be electroplated, which is ready to enter the electroplating bath, and a shielding plate for shielding is arranged at the upper end of the anode. The foam metal electroplating device and method can effectively improve the plating permeability and flexibility of foam metal, and improve the uniformity of products.