62results about How to "Guaranteed heat transfer" patented technology

The invention relates to a solid fermentation bioreactor. The reactor comprises a reaction casing , and a porous material layer separator plate (5) is arranged in the reaction casing to divide the reaction casing into an upper fermentation chamber (1) and a lower layer air chamber (3); the reactor also comprises a fermentation control system for controlling a stirring unit, a temperature control unit, a humidity control unit, an air feed control unit and a fermentation tail gas detection and processing unit, so as to realize real time monitoring and control on temperature, humidity, ventilation, stirring and tail gas. The invention realizes totally enclosing on-line fermentation and prevents extraneous pollutants from entering; the tail gas detection system carries out real time on-line monitoring on fermentation gas, and tail gas is treated by tail gas recovery equipment to protect the environment, thereby realizing coupling operation of temperature, humidity, ventilation, stirring and tail gas control system and ensuring necessary essential factors for microbe growth.

The invention discloses a clamp for a thermal resistance test of a SMD packaged semiconductor device and relates to the technical field of semiconductor testing. The clamp comprises a metal base, a PCB, an insulated locating block and a compressing block. A groove is formed in the metal base. The PCB circuit is arranged in the groove. The insulated locating block is arranged on the PCB. The insulated locking block is provided with a locating containing hole matched with the tested SMD device. The compressing block capable of downwards compressing a tested SMD device is arranged on the insulated locating block. A thermocouple probe containing hole corresponding to the electrode of the tested SMD device in position is formed in the bottom of the groove. Two electrode wiring holes are formed in the side faces of the groove. Two electrodes enabling pins of the tested SMD device to be connected with electrode wiring holes are arranged on the PCB. The clamp can guarantee that the good thermal conductivity between the tested SMD device and a constant-temperature platform is achieved, the temperature of a shell can be easily controlled within a required range, it is also guaranteed that the electrodes of the tested SMD device are insulated from one another, and normal operation of the test is guaranteed.

A combined fluid-air evaporator having at least two separate duct systems is described, through which separate material flows may be conducted, at least one of the two duct systems having a free surface which may be brought into thermal contact with an air flow, and the at least two duct systems being at least partially in thermal contact with one another. Furthermore, a ventilation arrangement for a building is described using the combined fluid-air evaporator, in which a used air flow directed out of the building, which is in thermal contact with an outside air flow via an air-air heat exchanger, comes into thermal contact with the combined fluid-air evaporator, through which a refrigerant and an exothermic fluid pass, the refrigerant circulating in the loop of a heat pump, whose condenser is connected downstream in the flow direction from the air-air heat exchanger in the heated outside air flow, and the exothermic fluid circulates in the loop of a heat accumulator system.

The invention provides a heat exchanger and refrigeration device. An oil grooves (25) for collecting oil and causing it to flow are formed in the inner peripheral surface of a heat transmission tube (22) of heat exchangers (12, 13) so as to extend in the direction of the axis of the heat transmission tube (22).

The invention provides a chilled water way system. The system comprises a chilled water way and a water pump; a heat exchanger is connected in the chilled water way; the water pump is connected in the chilled water way and is used for driving chilled water to circulate in the chilled water way; the chilled water way comprises at least two chilled water inlet ways which are connected with a chilled water inlet of the heat exchanger in a converged manner; and the water pump is connected with the at least two chilled water inlet ways so as to control opening and closing of the chilled water inlet ways. Thus, according to the chilled water inlet and outlet temperature difference and the chilled water outlet temperature, opening and closing of the chilled water inlet ways are controlled, the flow of the chilled water is adjusted, the chilled water inlet and outlet temperature difference is matched with the indoor load, the degree of heat exchange between the chilled water and a refrigerant in the heat exchanger is guaranteed, and the refrigeration comfort is guaranteed. Besides, the chilled water outlet temperature is within the reasonable range, and the service life of a refrigeration component is guaranteed. The invention further provides an adjusting method of the chilled water way system, a water chilling unit and an air conditioner.

The invention relates to the technical field of NMP purification, and particularly discloses an NMP waste liquid recovery process. The process comprises the following two steps: dehydration treatmentand heavy component removal treatment. In the step of the dehydration treatment, NMP waste liquid is pumped into a vacuum dehydration tower and subjected to negative-pressure rectification, then wateris discharged from the top of the vacuum dehydration tower and is condensed, one part of a formed condensate is discharged as wastewater, the other part of the condensate flows back to the vacuum dehydration tower, a reflux ratio is 0.60-0.65, and a crude NMP material is discharged from the bottom of the vacuum dehydration tower. In the step of the heavy component removal treatment, the crude NMPmaterial discharged from the bottom of the vacuum dehydration tower is fed into a finished product tower and undergoes negative-pressure heavy component removal, an obtained NMP gas phase is discharged from the top of the finished product tower and then condensed, a part of a formed condensate is conveyed out as a product, and the other part of the condensate flows back into a product tower at areflux ratio of 0.50-0.55. By the adoption of such a technical scheme, the problems that in the prior art, technological processes are redundant, and energy consumption and investment cost are high are solved.

The invention relates to an experimental coke oven for small-scale production of coke and colloid layer samples and a using method thereof. The experimental coke oven comprises a heating furnace, a reactor and a colloid layer sampler; the heating furnace is composed of a furnace shell, a heating furnace body, a carbonization chamber and a top split furnace door which are sequentially arranged fromoutside to inside; heating devices are arranged in the heating furnace body at the two ends of the carbonization chamber respectively; the reactor used for containing coal samples is arranged in thecarbonization chamber and is divided into a main reaction region and a colloid layer sampling region, and the main reaction region and the colloid layer sampling region are respectively close to two heating ends of the heating furnace body; and the colloid layer sampler is movably arranged in the colloid layer sampling region; and the top of the reactor is provided with a reactor upper cover, thereactor upper cover is provided with a gas outlet, a plurality of temperature sensors and a pressure sensor. The experimental coke oven can be used for accurately simulating the working conditions ofa large coke oven, and preparing the colloid layer samples and the coke samples for coking of single coal seed or coal blending; and meanwhile a colloid layer can be sampled at any time, and the experimental coke oven is simple in structure and convenient to operate.

The invention discloses a method for measuring a coefficient of heat transfer of a solidification interface under the action of an alternating magnetic field. The device comprises a thermocouple for measuring the temperature change of a metal melt and the temperature change of a cylindrical mould, an induction coil, a heat insulation material and a data collecting and calculating system. Through measuring the temperature change of the metal melt and the mould under the action of the alternating magnetic field generated by the induction coil and using a reverse heat transfer calculation program, the coefficient of the heat transfer of the solidification interface in the metal solidification process is obtained. The device is capable of measuring the coefficient of heat transfer of the metal interface under the action of the alternating magnetic field, and provides a basis for applying the electromagnetic field in the solidification process.

A sensor arrangement for determining an inside temperature in a motor vehicle having a climate control device and at least a panel is at least a part of a control part of the climate control device, where the sensor arrangement includes a housing with at least a front wall and a rear wall, the housing is filled with a heat-insulating material, a first temperature sensor attached to a rear of the front wall and a second temperature sensor attached to an inner side of the rear wall, said inner side facing a rear of the front wall, and where the front wall is a part of the panel of the motor vehicle.

A heatable injector for fuel injection in an internal combustion engine, the injector having an injector housing, a fuel space which is situated inside the injector housing, an adjustable injector needle which is arranged in the injector housing for opening and closing a fuel discharge opening of the injector housing, and a heating device which is arranged inside the injector housing with a heating element for heating the fuel which is situated in the fuel space. The heating element is configured as a coating of a boundary face of the injector with respect to its fuel space, the coating being composed of a carbon nanoparticle material.

The invention provides a transcritical carbon dioxide circulation and solution dehumidification air temperature and humidity regulation system, and belongs to the technical field of air conditioner system regulation. Heat cascade integration of a carbon dioxide transcritical refrigeration system and a liquid absorption type dehumidification system is achieved, the energy utilization rate is increased, and the energy consumption of an air conditioner refrigeration system is reduced. Fresh air is dehumidified and then cooled through a refrigeration system evaporator, independent step control of temperature and humidity is truly achieved, the cooling capacity of the evaporator is not consumed in the dehumidification process, and energy is saved to the maximum extent. A refrigeration unit inner cooler exchanges heat with desorption air, and the system performance is improved. Cooling water is used as the hot water resource used for life after being heated by the system in a cascade manner. A low-circulation-ration solution circulation system is adopted. By means of the unique structural design of an inner heat exchange type absorber and a regenerator, it is ensured that the heat transfer process and the mass transfer process are conducted in a container at the same time. By applying the nanometer technology to the inner surfaces of the absorber and the regenerator, the surface infiltration performance is improved, and the heat transfer and mass transfer effects are improved.

The invention discloses a device for preparing foam resin microspheres for physical sensitization of emulsified explosives. The device comprises a frame (1) and a conveying channel cylinder, wherein the conveying channel cylinder is composed of a charging cylinder section (2), a mixing cylinder section (3) and a foaming cylinder section (4) for foaming resin microspheres; the three sections are orderly connected by use of flanges, and a feeding hole A (7) and a feeding hole B (8) both communicated with a conveying channel (5) are formed in the top of the charging cylinder section (2); the device further comprises a charging system, a liquid adding system, a motor I (9), a nitrogen cooling device (10) and a reduction gearbox I (11) with two output ends, wherein the motor I (9), the reduction gearbox I (11) and the conveying channel cylinder are orderly arranged on the frame (1). The invention also discloses a method for preparing the foam resin microspheres. The device for preparing the foam resin microspheres for physical sensitization of the emulsified explosives has the beneficial effects that the production efficiency is high, the dust generated after the foaming of the foam resin microspheres for physical sensitization of the emulsified explosives is effectively reduced, and sticking of the foam resin microspheres for physical sensitization of the emulsified explosives at high temperatures is effectively prevented.

The invention belongs to the technical field of environmental protection, particularly relates to a high-temperature flue gas waste heat utilization device. Aiming at solving the problems that a traditional high-temperature flue gas heat recovery device is generally simple in structure, flue gas is directly introduced into the device for heat exchange, the wall surface of a heat exchange componentis prone to be attached with dust, and then the heat recovery effect is affected, the following scheme is provided. According to the scheme, the novel device comprises a heat exchange tank, a water outlet is formed in the bottom end of the heat exchange tank, and a water outlet hopper is welded to the inner wall of the water outlet. According to the novel device, by arranging an automatic drainage mechanism, when the temperature of water in the heat exchange tank continuously rises, and the internal pressure rises to a certain value, a sealing top plate is pressed to be separated from a fixing ring, so that the water flows out; and in the process of losing magnetic adsorption of magnetic blocks, the water flows out and impacts, along with the water outlet hopper, a flow dividing blockingpiece and a supporting plate with a semispherical plate, so that continuous pulling force is generated on the sealing top plate, and then it is guaranteed that the sealing top plate is far away from the fixing ring, and the automatic drainage is smoothly carried out.

The invention discloses a preparation method of a foldable thermochromic device based on a nanowire film. According to the preparation method of the foldable thermochromic device based on the nanowirefilm, when a metal nanowire film is located under a thermochromic display layer on a substrate, the metal nanowire film is prepared by automatic blade coating, and the hermochromic display layer is prepared by silk-screen printing; and when the thermochromic display layer is located under the metal nanowire film on the substrate, the hermochromic display layer is prepared by ink jet printing, andthe metal nanowire film is prepared by spray coating. The metal nanowire film has high optical transmittance, an ultralow resistance value and a high heat conductivity coefficient, has an invisibility function on the substrate, and can be located on the same side of the substrate with a thermochromic display object; and the quantity of heat is transmitted to a thermochromic material directly andrapidly, and the display object is not shielded.

The invention relates to a horizontal fluidized stirring dryer of beer grains. The horizontal fluidized stirring dryer of the beer grains comprises a machine frame and a housing installed on the machine frame. The central position in the housing is provided with a blast channel. The blast channel divides the housing to two drying chambers. A stirring shaft is respectively installed in each of two drying chambers. The stirring shafts are installed on a pair of bearing seats at two ends of the housing. The stirring shafts are driven to be rotated by a motor installed at the exterior of the housing through a transmission mechanism. A plurality of stirring blades is uniformly distributed on the stirring shafts. An arc plate is installed on the inner wall of the drying chambers below the stirring shafts. One end of each of two drying chamber housings is provided with a material inlet, and the other end of the housing is provided with a material outlet and an air inlet. The upper part of the housing is provided with an air inducing pipe. The end part of the blast channel is communicated with the air inlet. The bottom of the blast channel is provided with an air guiding plate. The top of the housing is provided with an air inducing cover. The structure design of the horizontal fluidized stirring dryer of the beer grains is scientific and reasonable. The material is stirred to be fluidized state by the stirring blades, and the thick beer grains are crushed, so the loose degree of the beer grains is guaranteed, the drying efficiency is improved, and the integrated drying treatment of the bear grains is realized.

A system for managing heat fluxes of an aircraft is provided, including a fuel tank supplying a turbomachine with fuel via a fuel supply circuit; a cell cooling circuit connected to a thermal effluents source, which integrates a first heat exchanger ensuring heat transfer between a coolant circulating in the cell cooling circuit and air flow channeled into a cooling air channel extending from an air intake to an exhaust; and a second heat exchanger ensuring a heat transfer between the coolant circulating in the cell cooling circuit and the fuel. The air intake includes a blocker to open/close it. The system includes a fuel transfer circuit, which connects the fuel tank to the second heat exchanger and provides fuel to the second heat exchanger, including a valve selectively changing a fuel supply direction from the second heat exchanger between the directions of the tank and the fuel supply circuit.

The invention refers to gas and solid reaction field of chemistry absorption cooling, sun energy thermal storage and large quantity heat transmitting, accurately it is absorbing regenerator which is used to strengthen heat transmitting, it sets a multi-hole pipe in the centre of gapless rail, radial and lengthways vanes are set between small pipe and seamless rail, it fills sorbent in space isolated by radial and lengthways vanes.

Provided is a heat exchanger. The heat exchanger includes a plurality of refrigerant tubes through which a refrigerant flows, the plurality of refrigerant tube being disposed to be spaced apart from each other in one direction and a plurality of fins disposed between the plurality of refrigerant tubes. A distance between the fins disposed on a front end-side of the plurality of refrigerant tubes is greater than that between the fins disposed on a rear end-side of the plurality of refrigerant tubes.

The invention relates to a fluidized bed furnace for drying in the industry, in particular to a novel high temperature smoke fluidized bed furnace which is thorough in slag discharging and long in service life, and a coking phenomenon cannot happen. The novel high temperature smoke fluidized bed furnace comprises a furnace body (1), a fire blocking wall (2) is arranged inside the furnace body, the inside of the furnace body (1) is separated by the fire blocking wall (1) into a combustion chamber (3) and a mixing chamber (4). A coal inlet pipe (5) is arranged on the lateral wall of the furnace body (1) of the combustion chamber (3) in inclination mode, a wind distribution plate (6) is arranged at the bottom of the furnace body (1), and an air outlet (7) is arranged on the lateral wall of the furnace body (1) of the mixing chamber (4). The novel high temperature smoke fluidized bed furnace is characterized in that the top of the furnace body (1) is in an arc shape protruding upwards, the fire blocking wall (2) is vertically located at the lower portion of one side of the mixing chamber (4), and the upper portion is in an arc shape curving to the mixing chamber (4). The fire blocking wall (2) is located on one side of the mixing chamber (4) to be connected with the bottom of the mixing chamber (4) to form an inclined face (8) with the same inclination, and the tail end of the inclined face (8) is connected with the bottom end of the air outlet (7).

The invention discloses a glass fiber drawing machine with a uniform heating function. The machine comprises a wire drawing machine, a discharge pipe is fixedly connected to the input end of the wiredrawing machine; the input end of the discharge pipe is fixedly connected with the melting chamber; a heating device is fixedly mounted on the melting chamber; the input end of the melting chamber isfixedly connected with the impurity removal device; the outer side of the impurity removal device is covered with a charging box; the impurity removing device comprises a filtering device and a magnetic metal removing device; according to the glass fiber drawing machine, the wire drawing machine is directly connected with the melting chamber and the impurity removing device; the raw materials arecontinuously subjected to impurity removal and melting treatment, consumption of treatment equipment is reduced, consumption of cost resources is reduced, meanwhile, an asbestos heat preservation layer and a heat insulation sleeve are arranged on the outer side of the discharging pipe, heat preservation conveying of the molten raw materials is guaranteed, heat loss is prevented, and the raw materials are kept in a molten state all the time.

A heat exchanger relating to the present invention is provided with: a fin, which has a first through hole and a second through hole formed therein, and a first end portion and a second end portion; afirst heat transfer tube inserted into the first through hole; and a second heat transfer tube inserted into the second through hole. When a virtual straight line passing end portions of the first heat transfer tube and the second heat transfer tube, said end portions being on the first end portion side, is defined as a first virtual straight line, a virtual straight line passing end portions ofthe first heat transfer tube and the second heat transfer tube, said end portions being on the second end portion side, is defined as a second virtual straight line, a region between the first end portion and the first virtual straight line is defined as a first drain region, a region between the second end portion and the second virtual straight line is defined as a second drain region, and a region surrounded by the first heat transfer tube, the second heat transfer tube, the first virtual straight line, and the second virtual straight line is defined as a water conducting region, a first trench inclined downward toward the first drain region, and a second trench tilted downward toward the second drain region are formed in the water conducting region.

The invention relates to a solution copolymerization method for preparing a maleic anhydride-alkyl vinyl ether alternate copolymer. The method is characterized in that the method comprises the following steps: carrying out the solution copolymerization reaction of the maleic anhydride and the alkyl vinyl ether in the mol ratio of 1:1 in the mixed solvent through the initiation of an initiator, setting the polymerization temperature between 81 and 90 DEG C and the reaction time between 5 and 7 hours, obtaining slurry copolymer solution, filtrating and drying the solution in vacuum, and finally obtaining the white polymer powder.