51results about How to "Improve refrigeration efficiency" patented technology

A composition for use in compression refrigeration comprising (A) a refrigerant containing a C1-C8 hydrocarbon as the principal ingredient, and (B) a lubrication base oil primarily formed of a hydrocarbon compound whose non-aromatic-group unsaturation degree is not more than 10% and whose kinematic viscosity is not less than 5 mm.sup.2 / s or (C) a lubrication base oil whose primary component is a specified polyalkylene glycol derivative having a kinematic viscosity of 5-200 mm.sup.2 / s at 100.degree. C.; and a method for lubricating compression refrigerators making use of the composition. The composition and the method of the invention achieve improved antiabrasion and stable operation due to efficient lubrication, and as a result, enhanced lubrication performance and sealing effect, as well as improved refrigeration performance can be attained.

A micro refrigerator of ferroelectric ceramics applies ' double stage - overlap' refrigerating structure and it is prepared adapting relaxation and solid solution of PMNT with high electro biological heat effect under wet preparation method of sol - gel . In said method, new mode of physical-chemical thickness reduction and new detecting means of electro biological heat property are applied.

The invention belongs to the technical field of packaging equipment, in particular to a foam plastic packaging box convenient for low-temperature storage. The foam plastic packaging box comprises an inner box body, an inner box cover, an outer foam plastic box body, an outer foam plastic box cover, sealing modules, clamping modules and storage modules; the two sealing modules are arranged at the two sides of a top opening of the inner box body; the storage module is arranged on the inner side, between the two sealing modules, of the inner box body; support modules are arranged on a bottom plate on the inner side of the inner box body; the storage modules are symmetrically arranged about the vertical midline of the inner box body; each storage module comprises a rectangular air bag and a partition plate; first air passages are formed in the partition plates; the support modules are arranged between the two storage modules; the two clamping modules are arranged at the parts, positioned on the outer sides of two air cylinders, of the inner side of the inner box cover; each clamping module comprises an L-shaped guide rod and a telescopic airbag; and second air passages are formed in the L-shaped guide rods. Multiple sealing is carried out through the cooperative use of the sealing modules, the storage modules and the clamping modules, and the sealing efficiency of the foam plasticpackaging box is improved.

An electric refrigerator with individual refrigeration for freezing chamber and cold storage chamber is composed of casing, freezing chamber, cold storage chamber, compressor, condenser, expansion valve, fan and evaporator. Its features are that said freezing chamber and cold storage chamber have individual cold air channels, one for each chamber, and a single-evaporator or serially connected twoevaporators are used for both chambers. Its advantage is high refrigerating efficiency.

The micro refrigerator is used in raising the temperature control of laser device and computer CPU, improving the work efficiency of chip and prolonging their service life. The refrigerator is one multilayer structure including the high temperature area, metal layer, P-type semiconductor, N-type semiconductor, upper metal layer and low temperature area successively from bottom to top. It is prepared with superlattice material Si and Ge and the preparing process includes combined chemical plating process and oxide isolating process to form several stages of micro refrigerator, forming plasma reinforced chemical vapor deposited SiO2 film as protecting layer and chemical copper plating to form metal film in the bonding surfaces between P-type and N-type semiconductors.

The invention provides a cold chain logistics distribution vehicle and a distribution method thereof and belongs to the field of refrigerating and freshness retaining vehicles. The vehicle comprises an electric vehicle body provided with a freezer; the freezer comprises a housing, conductors and an inner tank; the inner tank is a rectangular one with one opened side, the wall of the inner tank is provided with ventilation holes evenly, the outer wall of the inner tank is coated with the conductors, right angle trapezoid protrusions are arranged on the conductors corresponding to the side walls of the inner tank, the conductors are coated with the housing with one opened side, a heat insulation layer is embedded in the housing, refrigerant is arranged in the clearance between the conductors and the housing, and the opened side of the housing is provided with a gate. The vehicle is capable of entering the city without causing traffic jams, the refrigerating and freshness retaining cost is low, the refrigerating and freshness retaining effect is fine, air pollution is eliminated, and the energy consumption cost is low.

The invention provides an overhead vehicle air conditioning unit. The overhead vehicle air conditioning unit comprises an outside air inlet module, an inside air inlet module, an air processing module and a waterproof module, wherein the inside air inlet module is upwards arranged and communicated with an outside air inlet so as to form air movement between the outside air inlet module and the inside air inlet module; the air processing unit consists of an air door unit and an air door execution unit, is used for adjusting air between the outside air inlet module and the inside air inlet module, and the air door unit is arranged on the air door execution module; and the waterproof module consists of a flow guiding unit, a water accumulation unit, and an exchange unit, and the flow guidingunit is arranged at a position corresponding to the outside air inlet module and used for guiding liquid entering from the outside air inlet module to a special position; the water accumulation unit is used for containing the liquid entering from the flow guiding unit; and the exchange unit is movably arranged at the bottom of the water accumulation unit.

The invention relates to an indoor thermoelectric cold-heat air condition water heating system, which is formed by one or several electric heat pump groups, fan coil tube or ground heat coil tube, outdoor heat absorber, cooling tower, low-height water tank, heat storage water tank, hot water injector, hot water cock, water pump, electric control valve, and connecting tubes, wherein each electric heat pump group has two groups of high-efficiency low-energy consumption thermoelectric elements as semi-conductor refrigerating chips, whose two sides are plate energy conductive water tank, that serially and parallel connected, via tube, fan coil tube or ground heat coil tube, electric control valve, cooling tower or outdoor heat absorber, low-height water tank, heat storage water tank, and water pump, to form cycle loop. The invention has high efficiency, low cost and non pollution.

The invention relates to a precise temperature control device and a precise temperature control method of a star sensor. The control method comprises the following steps of (S1) an instruction module analyzes and outputs instruction signals, and a temperature acquisition module acquires working temperature of a detector of the star sensor in real time; (S2) a PID (Proportion Integration Differentiation) control module receives the working temperature and the analyzed instruction signals, carries out PID operation by an anti-fuse FPGA (Field Programmable Gate Array) and outputs PID control quantity; (S3) a current acquisition module acquires working current of a cooler in real time and outputs current abnormality signals; (S4) a PWM (Pulse-Width Modulation) module receives the PID control quantity, carries out PWM operation by the anti-fuse FPGA, outputs pulse modulation signals to control the cooler for cooling, stop the cooler according to the current abnormality signals or control the cooler to start and stop according to the analyzed instruction signals. The precise temperature control device and the control method have the advantages that the anti-fuse FPGA is adopted for realizing precise control of the working temperature of the star sensor, so that temperature guarantee is provided for the accuracy of the star sensor, the requirements for low power consumption and high cooling efficiency are met, and the service life of the star sensor is prolonged.

The invention belongs to the technical field of food refrigeration, in particular to a packaging box for steak fresh keeping and refrigeration. The packaging box comprises a box body, a box cover, a rectangular air bag, clamping modules and a supporting module. The clamping modules and the supporting module are arranged inside the box body, the bottom of the box body is provided with a first cavity, the inner side of the first cavity is provided with a water absorption module, the bottom ends of the two clamping modules are elastically connected with the two sides of the supporting module correspondingly, the box body is covered with the box cover, the rectangular air bag is arranged inside the box cover, a valve is arranged on the box cover, the valve communicates with the rectangular airbag through a conduit, two first telescopic air bags communicate with the positions, corresponding the two clamping modules, of the bottom of the rectangular air bag, and the bottoms of the two firsttelescopic air bags are in contact with the tops of the two clamping modules correspondingly. The box body is sealed through the rectangular air bag, the box body refrigeration efficiency is improved, melted ice water is reused, and box body heat insulation efficiency is improved.

A freeze type dispenser having a refrigeration system including a compressor, condenser, expansion means and evaporator in the form of one or more freeze chambers in an enclosure is provided with a sub-cooler or auxiliary coil. The sub-cooler is located downstream of the condenser but upstream of the expansion means and is supplied with condensed refrigerant liquid. The sub-cooler is located adjacent the freeze chamber enclosure to prevent or reduce condensation of the same, without adversely affecting, and in fact increasing cooling performance or capacity.

The invention relates to a room thermoelectric cold heat source system, which is formed by one or several electric heat pump groups, fan coil tube or ground heat coil tube, outdoor heat absorber, cooling tower, low-height water tank, heat storage water tank, hot water injector, hot water cock, electric refrigerator, water pump, electric control valve, and connecting tubes, wherein each electric heat pump group has two groups of high-efficiency low-energy consumption thermoelectric elements as semi-conductor refrigerating chips, whose two sides are plate energy conductive water tanks, that serially and parallel connected, via tube, fan coil tube or ground heat coil tube, electric control valve, cooling tower or outdoor heat absorber, low-height water tank, heat storage water tank, and water pump, to form cycle loop. The electric refrigerator is formed by heat absorber, high-efficiency low-energy consumption thermoelectric element, hot water tank, and coolant tank. The invention has high efficiency, low cost and non pollution.

The invention belongs to the technical field of rail transit, and particularly relates to an intelligent rail vehicle automatic catering trolley. The catering trolley comprises a trolley frame and wheels, and further comprises condensation plates, supporting columns, first shafts, placement boxes, first control units and condensation units. The condensation units and the first control units are arranged, and the first control units and the condensation units are matched with each other, so that on the one hand, the freshness of beverages is improved, the beverages are not likely to go bad, andtherefore the drinking taste of beverages is improved; on the other hand, adjustment can be conducted according to actual needs of beverages, so that the beverages are evenly frozen, and the beveragerefrigerating effect is improved; meanwhile, in the process that the placement boxes move downwards, first air bags are extruded by the placement boxes, the first air bags blow out cold air, and thecold air directly acts on the beverages through first holes, so that the beverage refrigerating efficiency is improved.

The invention discloses an automatic sperm cold storage table and controller, which comprises a bottom plate, wherein a guide rail is arranged on the bottom plate; an object carrying table is arrangedon the guide rail and is connected with a power mechanism driving the object carrying table to move along the guide rail; the power mechanism is connected with a controller, and comprises a motor anda screw; the object carrying table is provided with a threaded hole; the lower end of the threaded hole is movably connected with the bottom plate; the motor is arranged at the lower side of the bottom plate; the screw rod is connected with the threaded hole through screw threads; a control base is arranged at the lower side of the bottom plate; the controller and the motor are arranged in the control base; after the carrying of a sperm freezing sheet, the object carrying table can automatically and slowly descend into liquid nitrogen; the operation is convenient; the liquid nitrogen suffocation on the sperm freezing sheet clamped by professional medical personnel is not needed; the energy consumption of medical personnel is greatly reduced. In addition, a plurality of sperm freezing sheets can be carried and placed onto the object carrying table; the batched sperm liquid nitrogen suffocation freezing can be performed at the same time; very high cold storage efficiency is realized.

The invention discloses a waterless air conditioning device, and belongs to the technical field of air conditioning equipment. The waterless air conditioning device is characterized in that air entersthe device from a fourth air inlet, temperature is reduced through a cooling end of a semiconductor chilling plate, water mist is condensed on an aluminum condensing sheet, condensed water falls intoa water collection tank under the action of the gravity, flows onto a cotton rod through a pipe barrel, and enters a water tank after filtered, a water level detection module detects the water leveluntil the appropriate height, the air after being dehumidified is heated through a heat dissipation end of the semiconductor chilling plate so as to be further dried, and generated dry air low in temperature is discharged out of an air conditioner through a centrifugal outer rotor fan. The air conditioning device integrates refrigeration, dehumidification, heating, waterless performance and movinghigh-frequency control, adds a cooling function, and can meet the demand of the device for temperature reduction.

The invention belongs to the technical field of reagent cold storage devices, and discloses a device for reagent refrigeration and homogenizing. The device comprises a reagent ship, a reagent ship tray and a reagent pot; the reagent ship is arranged in the reagent ship tray; the reagent ship tray is arranged in the reagent pot; the top of the reagent pot is provided with a reagent pot cover; the outer wall of the reagent pot is fixedly provided with a detection optocoupler; a magnetic bead uniform mixing driving module is fixedly mounted at the bottom of one side of the reagent pot; a magnetic bead uniform mixing module is arranged at the bottom of the reagent ship; and thermal insulation cotton is fixedly mounted on the outer wall, the bottom wall surface and the top wall surface of the reagent pot. According to the device for reagent refrigeration and homogenizing, a system refrigeration control and full-automatic uniform mixing technology is adopted, refrigerating and automatic uniform mixing of reagents are achieved through the magnetic bead uniform mixing driving module, the magnetic bead uniform mixing module, a refrigeration module, the thermal insulation cotton and the detection optocoupler, and reagent information is accurately read through a code scanning demisting module, and therefore, the reagents are convenient to refrigerate, and meanwhile, the uniform mixing effect and efficiency of the reagents are improved.

The invention belongs to the technical field of intelligent food delivery, in particular to a rail vehicle food and beverage delivery method. The method adopts an automatic food delivery vehicle whichcomprises a vehicle frame and wheels, and also including a condensing plate, struts, a first shaft, a placement box, a first control unit and a condensing unit. By arranging the condensing unit and the first control unit, through the mutual cooperation of the first control unit and the condensing unit, the freshness of the beverage is improved, so that the beverage is not easy to deteriorate, andthe taste of the beverage is improved; according to the actual needs of drinks to adjust, so that the drinks are uniformly frozen so as to improve the refrigeration effect of drinks; at that same time, during the downward movement of the placement box, the first air bag is squeezed by the placement box, and the first airbag bulges clod air, and the cold air directly acts on the beverage through the first hole, thereby improving the refrigeration efficiency of the beverage.

The invention belongs to the technical field of medical equipment, and particularly relates to a kit for hereditary tumor gene detection, the kit comprises a kit body and a kit cover, the top of the kit body is open, a bottom plate is fixedly connected between the inner walls of the kit body, a reagent bottle is placed on the bottom plate, a bottle plug is arranged at the pipe orifice of the reagent bottle, an ice bag is placed in the kit body, and the ice bag is connected with the kit cover. The box cover comprises a fixed part and a rotating part, the fixed part is matched with the opening of the box body, the rotating part is rotationally connected to the top of the fixed part, a group of placing openings are formed in the fixed part, and a taking-out opening is formed in the rotating part; according to the kit, the rotating part and the taking-out opening are arranged, so that the ice bag cools the interior of the kit body in advance, and in the process of putting in and taking out the reagent bottle, compared with the process of completely opening the kit, the placement opening 211 is communicated with the outside air, so that the loss of cold air in the kit is reduced.

Of the water producing apparatus, the water storage part includes a water tank, a water-saving float limiting pipe connected to the tank and a water pumping room; the evaporator has heating board, which has surface contacting closely with the heat-evolving surface of semiconductor refrigerating block, on its one side and transparent glass window on the other side; and the condensastor has condensing channel comprising condensing fins. The water producing apparatus has solar energy unit and semiconductor refrigerating element and can produce fresh water effectively owing to the raised vapor condensing temperature and thus the greatly reduced temperature difference between two sides of the semiconductor refrigerating block.

The invention relates to a room thermoelectric cold heat air conditioning system, which is formed by one or several electric heat pump groups, fan coil tube or ground heat coil tube, outdoor heat absorber, cooling tower, low-height water tank, water pump, electric control valve, and connecting tubes, wherein the middle of electric heat pump groups is high-efficiency low-energy consumption thermoelectric elements as semi-conductor refrigerating chips, whose two sides are plate energy conductive water tanks, that serially and parallel connected, via tube, fan coil tube or ground heat coil tube, electric control valve, cooling tower or outdoor heat absorber, low-height water tank, heat storage water tank, and water pump, to form cycle loop. The invention has high efficiency, low cost and non pollution.

The invention discloses an application of a multifunctional silver niobate ceramic in an electrocaloric effect refrigeration technology, a chemical formula of the silver niobate ceramic is AgxNbO2.5+x / 2, and x is greater than or equal to 1 and less than or equal to 1.05. According to the silver niobate ceramic material capable of being used for electrocaloric effect refrigeration, the silver niobate ceramic material has the electrocaloric effect and the positive electrocaloric effect at the same time in a specific temperature interval, the positive electrocaloric effect and the negative electrocaloric effect work cooperatively, and the refrigeration efficiency of the electrocaloric effect can be effectively improved; moreover, the preparation method of the silver niobate ceramic material has the characteristics of simple process, good stability and environmental friendliness; the product is suitable for developing a miniature refrigerator with high refrigeration efficiency, has important practical value, expands the application of the silver niobate material from the fields of piezoelectricity, energy storage, photocatalysis and the like to the field of electrocaloric effect refrigeration, and widens the application range of the silver niobate material.

The invention discloses a gas backflow structure. The gas backflow structure comprises a shell and a flow guide element. The shell comprises a first side wall, a second side wall and a third side wall. The flow guide element is formed on the third side wall and toward the side edge of the outside. The first side wall extends from the two sides and form bending parts. The second side wall is formed between the first side wall and the third side wall. The third side wall is formed at the other end, oppositely toward the bending parts, of the flow guide element. A first air channel is formed between the first side wall and the second side wall. A second air channel is formed between the second side wall and the flow guide element, part of the bending parts as well as the third side wall and communicates with the first air channel, and a first air opening and a second air opening are formed in the junction of the flow guide element and the bending parts and the junction of the flow guide element and the third side wall correspondingly. Therefore, the temperature adjusting efficiency of an air conditioner device can be improved effectively.

The present invention discloses a distributor of central conditioning machine. It includes the following several portions: external shell forming appearance of distributor, sound eliminator, filling portion and exposed portion. The described sound eliminator is placed in the interior of external shell and is used for reducing the noise produced when the refrigerant is flowed, the described filling portion is formed in the space in which the sound eliminator is set in the interior of external shell, and the filling portion is filled up with porous filling material formed from foamed liquor. The described exposed portion is formed in the interior of external shell, in the interior of exposed portion is set an electromagnetic epansion valve for regulating refrigerant flow rate.

The invention discloses a refrigerated container based on a self-generating technology. The refrigerated container comprises a refrigerated container body, a refrigerating system and a turbine power generation device, wherein a liquid refrigerant compressed and condensed by the refrigerating system is divided into two paths, after being throttled in the first path, the liquid refrigerant flows into the refrigerated container body to evaporate and absorb heat of refrigerated products, the liquid refrigerant in the second path is sprayed to turbine blades to generate electricity, the generated electricity is provided for the refrigerating system to be used, if the generated electricity is redundant, the generated electricity is stored in an energy storage device, if the generated electricityis not enough to be used by the refrigerating system, the energy storage device releases the electricity or further uses external power to provide the electricity for the refrigerating system in a mixed manner, after gaseous refrigerants of the first path and the second path are converged, circulating compression and condensation are conducted, the flow flowing to the first path and the second path is distributed in real time according to the characteristic that the needed cooling capacity is smaller and smaller in the refrigeration process of the articles, and dynamic adjustment of the generating capacity is achieved. By adopting the scheme, the flow is distributed in real time, and the aims of dynamically adjusting the required power generation amount and integrally improving the self-use rate of power generation in the refrigeration process are achieved.

The invention relates to a liquid dispensing device. The device comprises a liquid dispensing tank with an opening, the outer wall of the liquid dispensing tank is provided with a jack, inside of the jack is a hollow interlayer, the interlayer is provided with an emptying opening and an inlet and an outlet leading to the outside, the inlet is connected with an outlet of an ice-storage unit by a first line, the outlet is connected with an inlet of the ice-storage unit by a second line. The ice-storage unit and the connecting lines are provided with a temperature control and regulating valve, aswitch regulating valve and an emptying regulating valve respectively. The invention provides the novel liquid dispensing device for which the ice-storage technique is used and which has the advantages of improved refrigeration efficiency, economy in manpower and material resources, liquid medicine pollution prevention and environmental pollution reduction.

The invention relates to a double-electric-mode pure electric freezing and refrigerating unit. The double-electric-mode pure electric freezing and refrigerating unit comprises a condenser assembly, acontrol drive assembly and an evaporator assembly, wherein the control drive assembly comprises a drive control assembly shell, a control module, a transformer, a rectifier, a frequency converter anda compressor, the controller is electrically connected with the transformer, the rectifier and the frequency converter, the transformer is further connected with the rectifier to convert the input power supply mode, and the frequency converter is connected to the compressor; and the control driving assembly, the condenser assembly and the evaporator assembly are sequentially connected in series toform a loop so as to form a closed system of a refrigeration cycle. According to the double-electric-mode pure electric freezing and refrigerating unit, the two power modes of the freezing and refrigerating unit can be switched according to the actual working conditions of a pure electric refrigerator vehicle; and meanwhile, the integral refrigeration circulation loop is arranged, so that the refrigeration efficiency is effectively improved, and the loss of a vehicle-mounted power supply is reduced.

A semiconductor demoistener using semiconductor device as refrigerating part is composed of heat exchanger with alternative air inlet and outlet channels, condenser consisting of refrigerating heat-conducting base plate, refrigerating semiconductor block and heat dissipating and conducting base plate, condensing fins and heat-dissipating fins respectively on said base plates and water scraper on heat conducting base plate. It features high condensing and demoistening effect.

The invention discloses a curtain air conditioner. The curtain air conditioner comprises an air conditioner assembly, a curtain assembly and a fresh air assembly, wherein the air conditioner assembly comprises an air conditioner panel, an evaporator, swing blades, a fan, a rear frame, filter cotton and an air conditioner outdoor unit, the air conditioner panel, the evaporator, the swing blades, the fan, the rear frame and the filter cotton are arranged indoors, and the air conditioner outdoor unit is arranged outdoors; the curtain assembly comprises a curtain, a curtain panel, a curtain guide rail, a motor, a curtain rear frame, a rope, a curtain clamp and a rotary wheel; the fresh air assembly comprises a fresh air panel, a fresh air fan, a fresh air rear frame, fresh air swing blades, a fresh air filter and a fresh air inlet, the fresh air panel, the fresh air fan, the fresh air rear frame, the fresh air swing blades and the fresh air filter are arranged indoors, and the fresh air inlet is formed outdoors; a rear frame avoiding opening is formed in the lower side of the rear frame of the air conditioner assembly, a fresh air avoiding opening is formed in the lower side of the fresh air rear frame of the fresh air assembly, and the curtain assembly penetrates through the rear frame avoiding opening and the fresh air avoiding opening. According to the curtain air conditioner, the air conditioner and the curtain are integrated, the air conditioner outdoor unit is installed on the upper portion of an outer wall with a window, the distance between the air conditioner outdoor unit and an indoor unit is reduced, and the refrigeration efficiency is higher; meanwhile, due to the fact that the curtain air conditioner is close to the window, the fresh air function can be achieved in a short distance.

The invention provides an overhead vehicle air conditioning unit. The overhead vehicle air conditioning unit comprises an outside air inlet module, an inside air inlet module, an air processing module and a waterproof module, wherein the inside air inlet module is upwards arranged and communicated with an outside air inlet so as to form air movement between the outside air inlet module and the inside air inlet module; the air processing unit consists of an air door unit and an air door execution unit, is used for adjusting air between the outside air inlet module and the inside air inlet module, and the air door unit is arranged on the air door execution module; and the waterproof module consists of a flow guiding unit, a water accumulation unit, and an exchange unit, and the flow guiding unit is arranged at a position corresponding to the outside air inlet module and used for guiding liquid entering from the outside air inlet module to a special position; the water accumulation unit is used for containing the liquid entering from the flow guiding unit; and the exchange unit is movably arranged at the bottom of the water accumulation unit.