183results about How to "Uniform temperature control" patented technology

It is an object of the present invention to provide a reaction vessel which makes it possible to control the temperature of the reaction solution accommodated in the reaction chamber with a quick response, without any need for centrifuging when the reaction solution is accommodated in the reaction chamber, and which also makes it possible to cause the reaction to proceed even when the amount of reaction solution accommodated in the reaction chamber is extremely small. The present invention provides a reaction vessel comprising a reaction vessel main body which has a reaction chamber that has an opening part in the upper end and that can accommodate a reaction solution, and a cover member which can seal the opening part of the abovementioned reaction chamber, wherein the abovementioned cover member has a pressing part that can press the reaction solution accommodated in the abovementioned reaction chamber.

The invention provides a performance tester of a continuous flat ultrafiltration membrane and a reverse osmosis membrane and a use method thereof. The tester comprises a water supply unit, a drainage unit and a plurality of parallel infiltration ponds, wherein each infiltration pond comprises a substrate, a shell, a water inlet, a water outlet, an exhaust port, a bottom inserting tube, a stirrer and a constant-temperature water bath jacket. Produced water penetrating through a separation membrane to be measured is discharged out of the infiltration ponds via the water outlets. The tester can carry out constant-temperature and stable operation at higher temperature and can realize the functions of testing membrane separation performance and membrane flux attenuation, extracting key pollutants of the membrane, cleaning the membrane on line and testing membrane performance restore after cleaning.

A temperature control apparatus for sample storage includes: a well block comprising at least one accommodation groove accommodating at least one container for containing at least one sample therein, respectively; and a temperature control unit controlling a respective temperature of the at least one sample to be uniform, wherein the temperature control unit includes: a heat source portion generating heat or cold; and a heat transfer object transferring the heat or the cold of the heat source portion to the well block.

The invention discloses an adjusting and optimizing method of a ratio-controlled combustion system. The adjusting and optimizing method includes the following steps: S1 the whole ratio-controlled combustion system is divided into a plurality of combustion areas, and different temperatures are set for the combustion areas for combustion control; S2 coal gas flow is adjusted; S3 air flow is adjusted; and S4 flue gas content is measured: a portable flue gas analyzer is adopted to measure contents of oxygen and carbonic oxide which are contained in flue gases of each burner arranged in the same combustion area, the coal gas flow and the air flow are readjusted if the difference value of the measurement valve and the originally set value is larger than the preset value, and adjusting and optimizing are completed if the measurement valve is identical to the originally set value. The adjusting and optimizing method especially aims at the ratio-controlled combustion system, and is simple and convenient to operate and convenient to popularize; and integrally adjusts and optimizes all the combustion areas, can ensure that the burners of all the combustion areas are identical in power and combustion state, enables temperature in a furnace to be uniformly controlled, and improves control accuracy in low load.

The invention discloses a multi-fragment pulse combustion control system and method. The multi-fragment pulse combustion control system comprises a temperature thermocouple, a programmable controller, a burner controller, an air electric butterfly valve, a fuel gas solenoid valve, a ratio valve of air to fuel, an ignition transformer and a burner, wherein the programmable controller is separately connected with the temperature thermocouple, the input end of the burner controller and the air electric butterfly valve; the output end of the burner controller is separately connected with the fuel gas solenoid valve, the ignition transformer and the burner; the burner is connected with the ignition transformer through an ignition electrode; and the ratio valve of air to fuel is separately connected with the air electric butterfly valve, the fuel gas solenoid valve and the burner through pipelines. The multi-fragment pulse combustion control system has the advantages that the furnace temperature is more uniform in distribution; the temperature control precision is high; the adjustment linear ratio is large; the design cost is low; and the like.

The invention discloses a projection type photocuring 3D printing device. The projection type photocuring 3D printing device comprises a rack and further comprises a printing forming platform assembly, a trough assembly, a light source generator and a controller which are fixed in the rack. The trough assembly comprises a trough, a trough platform used for fixing and supporting the trough, and a drive mechanism I capable of driving the trough platform to conduct peeling overturning and return overturning. One side of the trough platform is hinged to the rack, and the other side of the trough platform is in shaft connection to the output end of the drive mechanism I. Under driving of the drive mechanism I, the trough platform conducts peeling overturning with the low speed and conducts return overturning with the high speed. The projection type photocuring 3D printing device meets the requirement for wide printing material coverage while the printing precision is ensured, and the forming performance and biology applicability of projection type photocuring 3D printing are improved.

The invention discloses a micro-drop spattering device and method, which comprises the following parts: spatter mode, mobile platform mode, image detecting mode, temperature control mode and spatter head maintaining mode, wherein the spatter head maintaining mode cleans spatter head; the spatter base carries the mobile platform mode, which detects the relative position and angle of spatter head and base; the temperature control mode modulates the surface temperature of base, which makes the temperature of base and micro-drop evenly, which improves flatness of moulded spatter film.

This invention relates to a new kind of spandex spinning technology. Send stock solution has undergone polymerization to storage jar for ripening, then through filtration, getting out of bubble, and entering spinning slot, pressing send by nitrogen gas and gear pump pressurize it into static mixer; Through the measuring pump to spit out stock solution and filtering it in spinning module, then allocate to spurt filament plate and spurt out from it; Evaporate out solvent in the spinning path and solidify it to spandex ammonia silk beam, then through false twisting, adding oil and rolling on the rolling machine to pack silk roll. This invention increase static mixer to suit 32 head spinning, reduce adverse effect caused by polymer which make gradient difference of temperature, residence time and viscosity along the radial of pipe; control the actuality temperature out of circulatory mediator in jar, spinning slot, static mixer and partner heat equipment, keep the homogenicity and stability after increasing the spinning air quantity and blast temperature, and increase volatilizing speed but not effect strand form.

The invention discloses a supporting facility of a technology of grain storage under circulation balanced temperature and humidity in a bungaloid granary. The facility comprises at least an air-conditioner, a ground ventiduct and at least an airflow pipeline, wherein the air-conditioners are installed on the upper part of a bungaloid granary; air blowing holes of the air-conditioners are downward so as to blow out airflow downward; the ground ventiduct is installed on the ground of the bungaloid granary and comprises a plurality of abreast air pipes and at least an air distribution box communicated with the air pipes; the air pipes are provided with through air holes so as to absorb airflow and ensure the airflow to flow into the air distribution boxes; airflow pipelines are vertically installed in the bungaloid granary; the lower ends of the airflow pipelines are communicated with the air distribution boxes; fans are arranged on the airflow pipelines and are used for exhausting the airflow from the upper ends of the airflow pipelines; and the air-conditioners, the ground ventiduct and the airflow pipelines are matched with the fans to form a circulation balanced temperature and humidity system. The facility has the following advantages that: the facility realizes balanced control of temperature and humidity in the granary, can effectively avoid the grain mildewing and heating temperature in the granary and can adapt to the high temperature and humidity environment in the southeast coastal areas in China; the labor cost and the electric cost are greatly lowered; and the grain losses are reduced.

The invention discloses an axial hot stretch flexible composite plastic high-pressure delivery pipe testing device, and belongs to the technical field of nonmetallic composite pipe hot stretch testing. A flexible composite pipe is prepared through the procedures of composite pipe blank discharging, pipe joint locking, surface processing and the like. The composite pipe is fixed to a clamp of a stretch device; a cylindrical cylinder wrapping the composite pipe is filled with water, and water in the cylinder is heated; a certain amount of water is injected into the composite pipe through a hydraulic pump station, and certain pressure is kept in the pipe. Due to the heat transfer effect of a medium in the cylinder, the surface temperature of the composite pipe reaches a certain fixed value; finally, the composite pressed inside and heated outside is mechanically stretched, and performance parameters of the composite pipe in the hot stretch process is tested with the aid of various sensors on the stretch device. The testing device has the advantages that the structure is compact; due to the cylinder and beam integrated design of the testing device, manufacturing cost can be reduced, and pressurization testing safety can be improved; meanwhile, various performance parameters of pipe blanks with different diameters can be obtained, and the testing device has certain universality.

The invention relates to a diketene preparation device and a diketene preparation method. The diketene preparation device comprises an acetic acid evaporator, a mixer, a cracking furnace, a quenching condenser and an absorption tower. The outlets of the acetic acid evaporator and the mixer are connected with the cracking furnace; the cracking furnace is then connected with the multi-level quenching condenser; the quenching condenser is then connected with the absorption tower; one branch of the absorption tower is connected with a polymerization tank, and the other branch of the absorption tower is connected with a water absorption tower; and the outlet of the third-level quenching condenser is connected with the quenching condenser behind through a liquid ring pump. The diketene preparation device and diketene preparation method provided by the invention have the beneficial effects that when the cracked gas is pressurized, the impurities such as acetic acid, water and acetic anhydride in the cracked gas can be condensed out more sufficiently, and thus the quality of the cracked gas before entering the absorption tower is improved while the freezing level is lowered; and compared with the traditional technology in which the energy consumption accounts for 45% of the total cost of diketene, the device and method provided by the invention have the advantage that the energy consumption only accounts for 25% of the total cost of diketene through improvement.

The invention provides a refrigerator, which comprises a door body, a refrigerator body, a circulating fan, temperature sensors, a refrigerating system and a controller, wherein chambers are defined in the interior of the refrigerator body; the chambers comprise a refrigerating chamber, a freezing chamber and a temperature-variable chamber; the circulating fan is arranged in the temperature-variable chamber, and runs when temperature differences of different areas in the temperature-variable chamber are bigger than a preset value or runs during the refrigerating process of the temperature-variable chamber; the temperature sensors are respectively arranged in the chambers so as to acquire the temperature of each chamber; the refrigerating system is used for refrigerating the chambers; the controller is used for controlling the refrigerating system to be started and stopped and the circulating fan to be started and stopped according to the acquired temperature. The refrigerator provided by the embodiment of the invention has the advantages that the temperature of the temperature-variable chamber can be accurately controlled, and the temperature fluctuation of the temperature-variable chamber is smaller, and therefore, the market competitiveness of the refrigerator is promoted. The invention also provides a control method of the refrigerator.

The present invention relates to the technical field of a bioprinter, and in particular relates to a bioprinter temperature control system and a bioprinter. The bioprinter temperature control system provided by the present invention, comprises a flow channel temperature control system, for controlling a temperature of a flow channel between an outlet of a bioprinting material container of a bioprinter and a nozzle of the bioprinter, such that the temperature of the flow channel conforms to a desired temperature of a biological printing material. The temperature control system of the present invention can realize the temperature control of the biological printing material, improving the survival rate of the printing material, and ensuring the biological function of the printing material.

The invention relates to a high-efficiency reliable thermal moxibustion device, which solves the problem of inconvenience in use of the conventional thermal moxibustion device. The device comprises a barrel-shaped inner box and a barrel-shaped outer box, wherein the inner box and the outer box are sleeved with each other, vent holes are formed on upper openings of the inner and outer boxes; a moxa stick fixing mechanism is arranged at the inner bottom of the inner box, and an annular end cover is arranged on the upper part of the outer box; radial distributed vent heat-conducting holes are formed at the bottom of the inner box and the bottom of the outer box; a heat-insulating protective gasket is sleeved at one end of each heat-conducting hole of the outer box; vent hole control rings for regulating throughput are sleeved on the periphery of the outer box in a circumferential sliding assembly way; and medical five-element materials are fixedly arranged on the end face of the opening of the heat-insulating protective gasket. The device has the advantages of large moxibustion area, centralized energy, convenience and balance in temperature control, small smoke stimulation and pollution, safe and high-efficiency moxibustion, five-element medical health care, and capability of improving comfort.

A process involving heat exchange that employs heat exchangers where the process material flows over a heat transfer surface in which a process material passes through the process conduit of a heat exchanger wherein the desired velocity profile of the process material passing through the process conduit is achieved by varying the cross sectional area of the process conduit in 3 or more locations along the path length of the process conduit which allows better regulation of heating or cooling within the system which, for some processes, will result in improved temperature control.

The invention provides a resin plate multi-point hot forming uniform temperature controlling and loading method. The resin plate multi-point hot forming uniform temperature controlling and loading method comprises the following steps that (1) the height of a multi-point base body die is adjusted through multi-point forming CAD/CAE/CAM software, and a target part profile is formed; (2) a resin plate is placed above the multi-point base body die; (3) the resin plate to be formed is heated to the target forming temperature through heaters which are arranged inside a hot-bulging box and on the periphery of the multi-point base body die; (4) a gap between the hot-bulging box and a multi-point base body is filled with compressed air so that a silica membrane can expand and deform, the resin plate and a polyurethane membrane are driven to be slowly attached to the die profile, and formation is achieved; (5) the heaters in the hot-bulging box and on the periphery of the multi-point base body are turned off after formation, gas continues to be injected into the gap between the hot-bulging box and the multi-point base body, and the laminated resin plate is subjected to pressure maintaining treatment; and (6) gas is not injected into the gap between the hot-bulging box and the multi-point base body, and the resin plate is cooled to the room temperature slowly.

The invention relates to a novel carbon fiber ice hockey rod thermal forming furnace, which comprises a furnace frame, a plurality of cold-hot plates and a cold water/steam circulating system. Molds are arranged between the cold-hot plates. The cold-hot plates are communicated with the cold water/steam circulating system. The cold water/steam circulating system comprises water inlet branch pipes and water outlet branch pipes, wherein the water inlet branch pipes and the water outlet branch pipes are respectively connected with various heat dissipation pipes, the water inlet branch pipes are connected with a water inlet main pipe, and the water outlet branch pipes are connected with a water outlet main pipe. The water inlet main pipe is respectively connected with a steam pipe and a cold water pipe. The steam pipe is provided with a steam electromagnetic valve. The cold water pipe is provided with a cold water electromagnetic valve. The water outlet main pipe is respectively connected with a steam backwater pipe and a cold water backwater pipe. The steam backwater pipe is provided with a steam backwater electromagnetic valve. The cold water backwater pipe is provided with a cold water backwater electromagnetic valve. According to the present invention, the following characteristics of the novel carbon fiber ice hockey rod are achieved: the cold and the hot are integrated, the control is automatic, the temperature control is uniform, the strength of the prepared ice hockey rod is high, and the toughness is good.

The invention relates to a roller shell roller capable of heating with heat conducting oil. According to the technological scheme, a center oil channel (10) is machined in the driven end of a roller body (1), and a left annular oil groove (5) and a right annular oil groove (12) are symmetrically machined in the cylindrical face of the roller body (1). Oil conducting grooves (6) are evenly machined between the left annular oil groove (5) and the right annular oil groove (12). Left slant oil channels (3) are evenly formed in the bottom of the left annular oil groove (5) and right slant oil channels (11) and the left slant oil channels (3) are symmetrically formed. The cylindrical face of the roller body is fixedly sleeved with a roller sleeve (9). The driven end of the roller body (1) is fixedly provided with a double-path rotation adapter (15). An oil conducting pipe (2) is arranged in the center oil channel (10). One end of the oil conducting pipe (2) is installed in the double-path rotation adapter (15). The other end of the oil conducting pipe (2) is fixedly provided with an oil blocking ring (8) which is arranged between the left slant oil channels (3) and the right slant oil channels (11). The roller shell roller capable of heating with the heat conducting oil has the advantages of being capable of evenly controlling the temperature of a rolled face, easy to machine and low in cost.