79results about How to "Large temperature adjustment range" patented technology

The present invention relates to one kind of shape memory fiber prepared with shape memory polyurethane and its preparation process. The shape memory polyurethane is prepared with material including one hydroxyl containing polymer, chain expander, diisocyanate and blocking agent in the molar ratio of 1 to 1-3 to 2.4-4.8 to 0.8-1.6. The preparation process of the shape memory fiber includes the following steps: preparing shape memory polyurethane with excessive isocyanate; adding blocking agent to obtain blocked shape memory polyurethane; and melt spinning to obtain shape memory fiber. The shape memory fiber of the present invention has very wide temperature regulating range, practical elasticity, strength and shape memory performance and comfortable hand feeling, is easy to spin alone or together with synthetic fiber and natural fiber, and may find wide application in clothing, biomedical material and other fields.

The invention relates the microwave radio-frequency radiation cross-linking biodegradation material, comprising starch, cellulose, A, aminocaprolactam or polyatomic alcohol, B, coupling agent, C, nucleation agent, D, undecylenic acid, calcium carbonate, natrii chloridum, and urea. The method comprises the following steps: mixing the raw material, cross linking with microwave radio-frequency device, foaming, forming, and getting the product. The invention solves the problems of no degradation, complex procedure, high cost and hard technology. The product has the advantages of good draftability, suppleness and obstructing property. The invention has the advantages of wide application area, completely degradation and non pollution. The invention also has the advantages of simple technology, easy operation and low cost.

The invention discloses a gas water heater for segmented combustion and a control method thereof. The gas water heater comprises a gas water heater main body, a combustor, a segmentation valve, a gaschannel, a gas proportional valve and a controller; the combustor, the segmentation valve, the gas channel and the controller are all arranged in the gas water heater main body; the gas proportional valve is arranged on the gas channel; the controller is electrically connected with the segmentation valve and the gas proportional valve, and is used for switching fire levels of the gas water heaterand adjusting current sections of the gas proportional valve in any fire level; the switching of the fire levels is realized through the switching control of the segmentation valve by the controller,and a current linkage control mode is adopted to limit different fire levels in different current sections of the gas proportional valve, so that the heat load overlap section between the low fire level and the high fire level is widened; the disconnecting pressure of the water heater can be effectively reduced; and constant-temperature hot water still can be output when the gas supply pressure isinsufficient, so that the bath feeling is improved.

The invention discloses an application of an ionic liquid serving as a magnetorheological fluid base solution, and also discloses magnetorheological fluid based on the ionic liquid, namely an ionic liquid-based magnetorheological fluid. The magnetorheological fluid comprises the base solution, a dispersed phase and addictives, wherein micro or submicro magnetic particles are used as the dispersed phase; the base solution is an ionic liquid and comprises the components in parts by weight: 8-39.5 parts of the base solution, 60-90 parts of the dispersed phase and 0.5-5 parts of the addictives. A method for preparing the magnetorheological fluid based on the ionic liquid comprises the following steps of: firstly, preparing magnetic particles; acquiring the ionic liquid and the maddictives in the mass proportion; adding the addictives into the ionic liquid, and stirring for dissolving in a mixed mode; finally, adding the magnetic particles, stirring and uniformly stirring in a mixed mode to finish the preparation of the magnetorheological fluid. The magnetorheological fluid is high in stability, wide in operating temperature and high in designability, has environment-friendly property, and is suitable for vacuum environment.

The invention discloses design of a special superconductor low-temperature cooling structure applied to a superconductive magnetic suspension micro thrust measurement system. The superconductor low-temperature cooling structure comprises a refrigerator, a cooling base, a cooling copper column, a cooling copper ring, a superconductive stator array, an Al<2>O<3> ceramic cover plate, an indium sheet, graphite gaskets, an anti-radiation screen and the like. Specific to the requirements of high cooling efficiency and low eddy current loss of the cooling structure of the measurement system, a dual-path conduction cooling structure with low eddy current effect is designed; according to the cooling structure, the heat conduction gaskets capable of lowering contact heat resistance are arranged on the respective contact surfaces of corresponding parts, and by virtue of setting of the anti-radiation screen, radiation heat flow from the exterior can be isolated; and when the measurement system is in use, the Al<2>O<3> ceramic cover plate and the graphite gaskets with a weak eddy current effect are positioned in a region with severe magnetic field changes, while the cooling base, the cooling copper ring and the cooling copper column with an obvious eddy current effect are isolated from the region, so that the eddy current loss of the conduction cooling structure is suppressed by virtue of the conduction cooling structure layout.

The invention discloses an electrochemical refrigerating system and a control method for the same. The electrochemical refrigerating system comprises an electrochemical compressor (1), a first metal hydride heat exchanger (2) and a second metal hydride heat exchanger (3), wherein the first metal hydride heat exchanger (2) is connected to a first interface end of the electrochemical compressor (1)through a first pipeline (4); the second metal hydride heat exchanger (3) is connected to a second interface end of the electrochemical compressor (1) through a second pipeline (5); and at least one of the first pipeline (4) and the second pipeline (5) is provided with a flow adjusting valve (6) for controlling flow of the pipelines. According to the electrochemical refrigerating system and the control method for the same, the problems that in the prior art, the electrochemical refrigerating temperature is inconvenient to adjust, and the adjustment range is small can be solved.

The invention provides a turbosuperchager test bed combustion chamber with the adjustable outlet temperature. The combustion chamber comprises a front flange, a nozzle, an ignition rod, a flame barrel, a casing barrel, a flame barrel flange, a temperature adjusting mechanism, a mixing segment outer barrel and a rear flange; the flame barrel flange is fixedly arranged on the tail of the flame barrel, the flame barrel is sleeved with the casing barrel, one end is connected with the flame barrel flange, the other end makes contact with the front flange, one end of the mixing segment outer barrelis connected with the other side face of the flame barrel flange, and the other end of the mixing segment outer barrel makes contact with the rear flange. The position of the mixing segment outer barrel is provided with the temperature adjusting mechanism. According to the combustion chamber, the adjusting mechanism is added on an outlet of the combustion chamber, cold air is introduced through anadjusting disc, cold air and high temperature gas are mixed, and the temperature adjusting range of the combustion chamber outlet is widened.

The invention discloses a combined mechanical ventilation fermenting and drying dual-purpose tank. The combined mechanical ventilation fermenting and drying dual-purpose tank comprises a bearing mechanical ventilation device, a temperature regulation automatic control device and an indoor-temperature heating device which are installed in a fermenting and drying chamber. The bearing mechanical ventilation device comprises a ventilation tank and an electric fan, the ventilation tank is formed by two long-side biconvex plates, two wide-side biconvex plates and the like in a combined and spliced mode and is supplied with air through the electric fan. An intelligent temperature regulation instrument in a distribution box of the temperature regulation automatic control device is connected with the electric fan and an electromagnetic steam regulation valve. The indoor-temperature heating device is composed of a central heating introduction air inlet pipe through the electromagnetic steam regulation valve, steam pipelines, steam stop valves, steam heat radiation fins and steam trap valves. The combined mechanical ventilation fermenting and drying dual-purpose tank is simple in structure, reasonable in design, capable of achieving two proposes and saving labor and time, convenient to operate, high in production efficiency, and capable of well achieving the purposes of fermenting and drying yeast materials and bringing great advantages to product transport and the price.

The invention discloses high and low temperature adjustable three-dimensional printing forming equipment. The high and low temperature adjustable three-dimensional printing forming equipment comprisesa base, a forming chamber, an adjusting mechanism, a heating module, a refrigeration module, a forming platform, a printing module and a control module. The forming chamber is composed of a front panel vertically mounted on the base, a rear panel, two side panels and an upper panel covering the front panel. The adjusting mechanism comprises a lead screw parallel to the front panel and a drive part driving the lead screw to rotate, the thread directions of the two ends of the lead screw are different, and the two ends of the lead screw are in threaded fit with the two side panels. The formingplatform is used for containing a printing structure component. The control module is used for controlling work of the heating module and the refrigeration module. According to the high and low temperature adjustable three-dimensional printing forming equipment, through the arrangement of the forming chamber with the forming space capable of changing along with the size of the printing structure component, the heating module and the refrigeration module, the printing requirements of materials of multiple types for the high temperature environment and the low temperature environment can be metat the same time; and compared with existing three-dimensional printing equipment, the high and low temperature adjustable three-dimensional printing forming equipment has the advantages of being highin temperature adjusting efficiency and energy utilization rate, wide in application range, long in service life and the like.

The invention discloses a solar photovoltaic photo-thermal and heat storage type electric boiler combined power supply and heating system. The system comprises a solar module, a water storage tank andan electric boiler, wherein the solar module, the water storage tank and the electric boiler communicate with one another through a water pipe; the solar module comprises a solar photovoltaic panel used for solar power generation and a bottom plate arranged below the solar photovoltaic panel, and a heat exchange pipeline and an air duct are arranged between the solar photovoltaic panel and the bottom plate; the water storage tank communicates with an external water source, and the water storage tank communicates with the inlet end of the heat exchange pipeline; and the inlet end of the electric boiler correspondingly communicates with the outlet end of the heat exchange pipeline and the water storage tank, and an external water outlet is formed in the outlet end of the electric boiler. The solar photovoltaic photo-thermal and heat storage type electric boiler combined power supply and heating system has the advantages that the temperature adjusting range is wide, wherein the boiler outlet temperature range is 110-180 DEG C; the automatic control degree is high, and specifically, output power of the electric boiler is dynamically distributed according to solar radiation intensity;and energy gradient utilization is realized, and specifically, through combined utilization of solar energy and the electric boiler, use of electric power during peak is reduced, and the utilization rate of the solar energy is improved.

The invention discloses a constant-temperature incubator. The incubator comprises an incubator body, an incubator door, a temperature adjusting chamber, a humidifying chamber and a control chamber, the incubator door is hinged to the incubator body, the temperature adjusting chamber and the control chamber are arranged at the upper end of the incubator body side by side, and the humidifying chamber is arranged at the lower end of the incubator body; and the side wall and the upper wall of the incubator body are both of a hollow structure and communicate with each other, a plurality of air holes penetrating through the hollow structure are uniformly formed in the inner side wall and the inner top wall of the incubator body, a first air inlet, a second air inlet and an air outlet are formedin the temperature adjusting chamber, the air outlet in the temperature adjusting chamber communicates with the hollow structure of the upper wall of the incubator body through a temperature adjustingpipeline, an air outlet of a humidifier communicates with an inner cavity of the incubator body through a humidifying pipeline, and the end, arranged in the inner cavity of the incubator body, of thehumidifying pipeline is connected to an electromagnetic nozzle. According to the invention, air with required temperature in the incubator body can be accurately controlled, heat in the box body is uniformly distributed, bacteria in the air are prevented from entering the incubator body to damage a culture, and the culture quality and the experiment accuracy are improved.

An air mixing and distributing device with a temperature adjustment function comprises a shell, a connection rod, a large rocker arm, a small rocker arm I, a small rocker arm II, rotary shafts, a bolt, a valve piece I, a valve piece II and a valve piece III, wherein the connection rod, the large rocker arm, the small rocker arm I, the small rocker arm II and the rotary shafts on the shell form a parallel rocking shaft connection rod mechanism. When the large rocker arm is shaken, the valve pieces can be controlled to rotate around the rotary shafts in respective pipelines in a linkage mode through the parallel rocking shaft connection rod mechanism. When the included angle alpha of the valve piece I of an air exhaust path and the axis of the pipeline of the air exhaust path and the included angle alpha of the valve piece III of a cold air path and the axis of the pipeline of the cold air path are larger than 10 degrees and smaller than 80 degrees, at the time, the included angle beta of the valve piece II of a hot air path and the axis of the pipeline of the hot air path is equal to 90 degrees minus alpha, cold air and hot air are in a mixed state, and the mixing ratio of the cold air and the hot air can be controlled by controlling the included angle alpha. According to the device, the ventilation capacity of a ventilation system of a plane is improved, the temperature adjustment range is widened, circulation of fresh air in a cabin is improved and environment comfort of the cabin is improved.

The invention relates to the field of the drying equipment and in particular relates to a conduction oil heating dryer for materials such as food, Chinese herbs and dehydrated vegetables. The conduction oil heating dryer comprises a left support, a right support, a motor, an air blower and a heater, wherein the motor is arranged on the left support, while the air blower and the heater are arranged on the right support; one end of the air blower is connected with a first communicating pipeline, while the other end of the air blower is connected with the heater; one end of the heater is connected with one end of a drying box by use of a second communicating pipeline; a steam outlet is formed in the drying box; the motor is connected with a conveyor belt by use of a chain. The conduction oil heating dryer is environmental friendly and energy-saving; besides, the dryer is provided with double air outlets to supply air so that the efficiency and quality of drying are effectively improved, and the production cost of an enterprise is reduced while the production efficiency of the enterprise is improved.

The invention discloses a novel refrigeration system for an ice cream machine, comprising a compressor, a condenser, an electronic expansion valve, a production area and a four-way valve, wherein theproduction area comprises a stirring tank and a storage tank, and the electronic expansion valve is used in a refrigeration system. During refrigeration, a high-temperature high-pressure superheated steam working medium flows out of the compressor, enters the condenser to release heat and cool down, then enters the electronic expansion valve for throttling, and then becomes a low-temperature low-pressure liquid working medium, and the low-temperature low-pressure liquid working medium cools the stirring tank and the storage tank and finally flows back to the compressor for a next cycle. Duringheating, the coil of the four-way valve is adjusted, and a superheated steam flows out from an e-port of the four-way valve, and heats up the stirring tank and the storage tank separately. The advantages of the novel refrigeration system comprise that the stirring tank and the storage tank can fully absorb heat or release heat, and the electronic expansion valve can adjust the temperature of theproduction area according to system requirements, realizes digital control and remote control, improves product quality and ensures production efficiency, thereby achieving the purpose of efficientlyproducing different products.

The invention discloses a system suitable for simulating dielectric discharge in a complex environment and a use method. The system comprises a tested sample, a controller, an ultrahigh vacuum deviceand a high-low temperature dielectric discharge test device. The tested sample is arranged in the high-low temperature dielectric discharge test device; and the ultrahigh vacuum device and the high-low temperature dielectric discharge test device are electrically connected with the controller. The ultrahigh vacuum device mainly comprises a vacuum chamber, a mechanical vacuum pump, a compound molecular pump and a pipeline, wherein the mechanical vacuum pump, the compound molecular pump and the vacuum chamber are sequentially connected through the pipeline; and the high-low temperature dielectric discharge test device comprises a high-voltage insulating sleeve, a test workbench and refrigeration equipment, wherein the test workbench is arranged at the bottom of the vacuum chamber, the testedsample is placed on the test workbench, and the high-voltage insulating sleeve applies voltage to the tested sample. The system has a high-low temperature conversion function, is high in reliability,strong in operability and long in service life, and can reduce the dispersity of a surface flashover discharge test and improve the discharge stability and uniformity.

The invention discloses a 500/600KW-5000/6000 KW combined cold and heat supply device. The 500/600KW-5000/6000 KW combined cold and heat supply device comprises a compressor unit, a regenerator, an air cooler, an evaporator and a DCS control cabinet, wherein at least eight groups of CO2 compressors are connected in parallel in the compressor unit; the regenerator comprises a first backheating pipeand a second backheating pipe, and the end socket of the first backheating pipe is connected to an input pipeline of the compressor unit; one end of the air cooler is connected to an output pipelineof the compressor unit, and the other end of the air cool is connected with one end of the second backheating pipe of the regenerator through a pipeline; one end of the evaporator is connected with the other end of the second backheating pipe of the regenerator through a backflow pipeline, and the other end of the evaporator is connected with the other end of the first backheating pipe of the regenerator through a connecting pipe; and the input end of the DCS control cabinet is separately and electrically connected with a first pressure sensor, a second sensor and the groups of compressors inthe compressor unit, and the control output end of the DCS control cabinet is separately connected with the groups of CO2 compressors in the compressor unit.

The invention belongs to a liquid cooler for cooling of an electronic component. The liquid cooler comprises a cooling plate with a multi-start spiral flow channel, a cover plate with fins and air flow holes, an air flow cooling cavity, a spiral groove cooling liquid heat dissipating plate, a cooling liquid storage cavity, a turbine, a fan and a motor. According to the invention, a cooling plate with a multi-start spiral flow channel structure is employed, wherein a cooling liquid flows symmetrically from inside to outside in the structure, thereby effectively overcoming the defects that the temperature of a traditional radiator increases continuously along the flow direction of a cooling liquid and a cooled electronic component generates unsymmetrical thermal stress and the like; and thecooling liquid that has worked or absorbed the heat is cooled by the air flow of the fan and subjected to heat dissipation processing of the fins, and then the cooling liquid is sent to the spiral flow channel cooling plate to carry out continuous internal circulation cooling on the electronic component. Therefore, the liquid cooler provided by the invention has the characteristics that the structure is compact, the cooling effect on the electronic component is good, the temperature adjustment range is wide, adverse effects of the thermal stress on the component are effectively reduced, the electronic component can be ensured to work efficiently, stably and safely in the working environment, and the service life of the electronic component can be prolonged.

The invention provides a biological fermentation apparatus. A stirring rod and stirring blades are driven by the rotation of a motor to rotate so as to stir a fermentation sample, and when a fermentation temperature in a tank body is changed, a temperature sensor transmits information to a controller, the fermentation temperature is adjusted by adjusting the temperature of water in a water delivery pipeline located in the stirring rod and the stirring blades. Along with the rotation of the stirring rod and the stirring blades, the water delivery pipeline rotates, so that the heating range is greater, and the heating effect is better. According to the biological fermentation apparatus provided by the invention, the water delivery pipeline is arranged in the stirring rod and the stirring blades, so that the temperature adjusting range is greater, the temperature adjusting effect is better, and the space is also saved; by arranging the temperature sensor, the temperature of a fermentationtank is adjusted in real time; and the biological fermentation apparatus is reasonable in design, simple and convenient in operation, capable of integrating the stirring and temperature control, andmore precise and effective in temperature control.

The invention discloses a refrigerator with heat insulation and unfreezing functions. The refrigerator comprises a freezing chamber, a refrigerating chamber, an unfreezing and heat insulation chamber, a condenser and a control device, wherein the condenser comprises a lower coiled pipe, a first metal hose, an upper coiled pipe, a second metal hose and a condensing pipe; the upper coiled pipe can be horizontally placed or vertically placed through manual operation; the unfreezing and heat insulation chamber comprises a water groove provided with a water pump, a water sprinkler, a support, a vertical fixing mechanism and a second fan; the vertical fixing mechanism is installed at a rear side of an inner cavity of the unfreezing and heat insulation chamber, and used for fixing a position of the upper coiled pipe while being vertically placed; and the control device comprises a setting module, a control module and a third temperature sensor. The refrigerator disclosed by the invention is simple in structure and convenient to install; and the refrigerator carries out food unfreezing through adopting different unfreezing modes, so that heat dissipation of the condenser of the refrigerator can be effectively reduced, and no spoilage of foods due to a too high temperature or long-time placement because of forgetting can be effectively guaranteed.

The invention relates to a treating system for governing waste gas of volatile organic compounds (VOCs) through plasma. The treating system comprises a heat exchanger, a combustion chamber, an induceddraft fan, a plasma spray gun, a waste gas connecting pipeline and a valve; a waste gas source is connected with the combustion chamber through the heat exchanger and is a place or equipment capableof generating the waste gas of the VOCs, and the heat exchanger can initially heat the waste gas of the VOCs; and the combustion chamber is connected with the induced draft fan through the heat exchanger, the heat exchanger can conduct heat exchanging on gas and water generated in the combustion chamber, and the induced draft fan can discharge the gas treated through the heat exchanger into atmosphere. The treating system can be used in the aspect of governing the waste gas, generated by various industries and equipment, of the VOCs, the treated waste gas can meet the requirements of the emission standard of emitted gas in China, through the treating system, the treating efficiency of the waste gas of the VOCs is significantly improved, the waste gas is discharged to reach the standard, environment pollution is reduced, and the application prospects are quite wide.