120 results about "Freezing environment" patented technology

The invention discloses a plant polysaccharide cigarette filter tip and a preparation method thereof. Plant polysaccharide, starch, adsorbent, plasticizer, emulsifier, waterproofing agent and plant protein are blended according to a certain proportion, so that the filter tip is prepared. The preparation method includes the following steps: (a) the starch, water and the plasticizer are blended and stirred, so that modified starch solution is obtained; (b) the plant polysaccharide and the modified starch solution are blended; (c) under certain conditions, the emulsifier, the waterproofing agent and the adsorbent are added into the mixture of the plant polysaccharide and the modified starch solution, and after stirring, the mixture is injected into a long cylindrical mold made of anti-freezing, heat-proofing material and molded; (d) the semifinished product is placed into a freezing environment and frozen, i.e. prefreezing; (e) the semifinished product in step d is placed into a freeze dryer and freeze-dried; (f) the porous composite body is taken out of the mold and deburred, and thereby a filter tip stick is obtained. Material resources are rich, the cost is low, and the three wastes cannot be produced. The performance is good, the filter tip can reduce the nicotine content by 40.2 to 84.1 percent, the tar by 26 to 72.1 percent and the nicotinamide by 20 to 39.2 percent, and after use, waste can be biodegraded.

Provided is a refrigeration appliance including a fresh food compartment for storing food items in a refrigerated environment having a target temperature above zero degrees Centigrade. A freezer compartment is disposed at an elevation vertically below the fresh food compartment for storing food items in a sub-freezing environment having a target temperature below zero degrees Centigrade. The refrigeration appliance also includes one or more of a hand-removable insulated cover, a cool air duct for introducing cooled air adjacent an ice bin, and a rearward-sloped catch pan positioned to catch dripping water in said ice maker and direct the dripping water into a drain.

The invention discloses a low-temperature disassembling method of a touch screen. The low-temperature disassembling method comprises the following steps of: S1, setting a low-temperature freezing environment so as to enable the temperature of the low-temperature freezing environment to be controlled in a range of -40 DEG C to -200 DEG C; S2, placing the touch screen into the low-temperature freezing environment; and S3, when all parts of the touch screen are separated, taking out all the parts. According to the low-temperature disassembling method of the touch screen, disclosed by the invention, the nondestructive and high-efficiency finished-product touch screen disassembling is realized by utilizing the different physical characteristics including different types of heat expansion and cold contraction, different phase-state conversion points and the like between glass and a rubber material through the low-temperature environment and the normal pressure. The low-temperature disassembling method disclosed by the invention can not scratch a glass panel of a body, and can efficiently disassemble the glass panel and a functional panel engraved with an ITO (Indium Tin Oxide) line, and no residual glue exists.

The invention relates to a thawing technology, in particular to an ultrasonic thawing device and method and application in ice breaking and defrosting. The ultrasonic thawing device comprises a machine body and a freezing area arranged on the machine body, wherein the freezing area comprises a thawing cabinet and a cold storage cabinet capable of freezing food, the thawing cabinet is provided with an ultrasonic thawing apparatus, the ultrasonic thawing apparatus breaks ice on the frozen food in the thawing cabinet under the freezing environment, so that nutritional substances of the food can be prevented from being lost along with the water, the original taste of the food is ensured, the taste is good, and the thawing efficiency is improved. The ultrasonic thawing method can be used for ice breaking of ocean, rivers, roads, railways, bridges, electric power and telecommunication circuits, can also be used for defrosting of fast-freezing tunnels, subzero storages, refrigerators, and air conditioner condensers, is not only short in ice breaking time and high in efficiency, but also low in energy consumption and convenient in operation.

A platform to be arranged adjacent to another platform to collectively form a heated walkway that minimizes the formation of ice on a surface of the walkway that is exposed to a sub-freezing environment. The platform includes an outermost surface to be exposed to the sub-freezing environment for providing traction for pedestrians walking on the platform, and a heating element for generating thermal energy to be transmitted to the outermost surface for minimizing the formation of ice on the outermost surface. A fastener is also provided for coupling the platform to a compatible feature of an adjacent platform to collectively form a walkway, and an electrical conductor delivers electric energy to the heating element and conducts electric energy from an external energy source to an adjacent platform.

An evaporator for refrigeration systems, comprising a set of tubes (20) arranged in series, spaced and parallel in relation to each other, carrying a refrigerant fluid and which are incorporated to and trespass a plurality of fins (10) arranged in multiple rows extending transversally to the direction of a forced airflow (F). The fins (10), which are incorporated to the first and second tubes (20) are spaced from each other by a larger distance (d), when they are operatively associated with a refrigerating environment, and by a smaller distance (d), when they are operatively associated with a freezing environment. Said distances (d) decrease at each two subsequent tubes (20), until reaching at least the third tube (20), said distance being then maintained at a minimum value for the other subsequent tubes (20).

An apparatus and method for making particulate ice cream with a freezing point sufficient for use within a typical retail grocery or home freezing environment is disclosed.

The invention discloses a high-temperature-resistant, high-sugar-resistant and freezing-resistant high-resistant yeast strain and a preparation method thereof. The preparation method comprises the following steps: over-expressing a complete sequence of H / ACA snoRNA (SNR84) by selecting and using a strong promoter PGK1 in a parent yeast strain to obtain the high-resistant yeast strain. The cell activity of the strain is remarkably improved in high-temperature, high-sugar and freezing environments in comparison with that of the parent strain. Saccharomyces cerevisiae are good in high-temperature resistance in heat shock treatment, high-sugar resistance in high-sugar dough and freezing resistance in frozen dough, the technical obstacle and the quality detect in a bread making process are overcome, and the application prospect is wide.

The invention discloses a high-voltage alternating-electric-field marine product preservation device. A process-control broadband multi-waveshape signal generator in the preservation device outputs alternating current signals with different frequencies and waveshapes; a high-frequency transformation-ratio-adjustable transformer performs alternating current signal voltage boosting and then outputs high-voltage alternating current; the high-voltage alternating current is output to an electric field generating device through a high-voltage-resistant insulation wire; one end of the high-voltage-resistant insulation wire is connected with a safety resistor in series and then is connected with an electrode plate of the electric field generating device, and in addition, the other end of the high-voltage insulation wire is directly connected with another electrode plate of the electric field generating device. Electric field superposition is performed on marine products by use of the electric field generating device, so that cells of the marine products generate micro-vibration, so that the marine products are preserved without being frozen in a partial freezing environment with a temperature range of -3 DEG C to -5 DEG C.

A refrigeration appliance includes a fresh food compartment for storing food items in a refrigerated environment having a target temperature above 0° C., a freezer compartment for storing food items in a sub-freezing environment having a target temperature below 0° C., a system evaporator for providing a cooling effect to at least one of the fresh food compartment and the freezer compartment, and an ice maker disposed within the fresh food compartment for freezing water into ice pieces. The ice maker includes an ice mold with an upper surface comprising a plurality of cavities formed therein for the ice pieces, a heater disposed on the ice mold and an ice maker refrigerant tube abutting at least one lateral side surface of the ice mold and cooling the ice mold to a temperature below 0° C. via thermal conduction.

The invention relates to a wire icing preventer for overhead power transmission lines in the field of power transmission equipment. The wire icing preventer comprises a framework shell, a main shaft, a coupling shaft, a spring, a first gear, a sheave, a second gear, a third gear, a flexible coupling part, an insulator and a wire; the main shaft and the coupling shaft are rotatably mounted in parallel on both side plates of the framework shell; the spring and the first gear are mounted side by side on the main shaft, the outer end of the spring is connected with a fixed shaft on the framework shell, and the inner end of the spring is connected with the main shaft; the sheave, the second gear and the third gear are mounted side by side on the coupling shaft, the second gear and the third gear are engaged with the first gear, and a one-way clutch is arranged at the middle of the second gear; the upper part of the external diameter of the third gear does not have teeth; the flexible coupling part is fixed on the sheave; and the insulator and the wire are connected with the flexible coupling part. The wire icing preventer can remove ice on a power transmission line, so that supporters for the power transmission line can operate under safe load, and thereby, the power transmission line can safely operate under the freezing environment.

The invention provides a splitting method and system for a touch panel stuck by OCA glue. The splitting method for the touch panel comprises the following steps: a sealing step: sealing the touch panel stuck by the OCA glue to be split; a cooling step: cooling the sealed touch panel so that the environment temperature of the touch panel is controlled to be in a range from -90 DEG C to 150 DEG C until cooling time reaches a pre-set first time period; and a splitting step: taking out the cooled touch panel and cutting off a sensor and a cover plate of the touch panel by a hard tool. The touch panel stuck by the OCA glue is put into a set freezing environment to be unfrozen for pre-set time so that the quality of OCA glue is changed, and negative influences on the sensor and the cover plate are not caused; furthermore, the touch panel stuck by the OCA glue can be split very well and devices on the touch panel are not damaged.

A collector core for a solar water-heating-system includes a plurality of heat-absorbing pipes each of which surrounds a cooler-water return-pipe. The heating-pipes may connect directly to an insulated hot-water storage-tank from which cooler water descends through the return-pipes into the heating-pipes. Upon reaching the end of the return-pipes, the cooler water flows outward into the space between the surrounding heating-pipes and the inner return-pipes. Upon warming, water between the two pipes rises upward back to the hot-water storage-tank thus completing the thermosyphon flow cycle. Preferably, the inner return-pipe is made of polyvinyl chloride ("PVC"), polybutelene ("PB"), or other compressible material which permits collector core operation both in freezing and non-freezing environments. Alternatively, the collector core may be added to an existing solar water-heating panel to improve its operation.

The invention discloses a cold-making tea making method, which comprises the following steps of: (1) taking tea and pure soft water at a ratio, wherein the ratio of the tea and the soft water is 1g:50ml-1g:85ml, and the water temperature is 0-15DEG C; (2) pouring the tea and the soft water into a container at the ratio; and refrigerating the container in the freezing environment for 6-24 hours to make the tea, wherein the temperature of the freezing environment is 0-15DEG C. Compared with the prior art, the tea prepared according to the cold-making tea making method provided by the invention has the advantages of specific cold-aroma, refreshing and long-lasting taste and is suitable to drinking for a long time.

The invention provides an anti-freezing liquid interior pressure difference transfer control valve which comprises a valve body and a valve core comprising a control chamber. The valve core part moves vertically along a valve lever shaft in the valve body. The valve body comprises a handwheel, a screw, an upper valve cover and a lower valve cover and is provided with a liquid inlet, a liquid outlet and a middle opening that are communicated; the middle opening of the valve body is connected with the bottom of the lower valve cover in a sealing manner, the axis of the liquid inlet of the valve body and the axis of the liquid outlet are distributed at a certain angel; the valve core comprises a pair of liners of the same shape, a lower patch, a seal sleeve, a valve lever, a large valve plate, a lower patch and a small valve plate, wherein, the valve lever can move freely relative to the central direction of a sealing opening at the middle of the main valve body. The transfer control valve has the advantages that the control valve is especially suitable for the working environment with an external temperature of the valve lower than 0 DEG C; when a pump is started, a sluice is closed and the valve is opened slowly strictly according to the operation rules of the pump, and when the pump is stopped, the large valve plate is first closed, keyholes at the circumference of the small patch are relieved from pressure, the small valve plate and the valve lever are pulled slowly downward to be closed; therefore, the control valve is not afraid of freezing environment, completely removes liquid breakdown and fulfills automatic control and sealing non-return without an external motive force.

The invention discloses a method for measuring liquid water content, and relates to the technical field of icing tunnel test. The method for measuring liquid water content comprises the following steps: S1, selecting a test measuring rod; S2, placing a convex lens at one end of the measuring rod, and an image sensor on the other end, connecting the image sensor with a computer processing system through a data line, and setting a point light source on the side of the convex lens away from the image sensor; S3, measuring the wind speed of the icing tunnel test section by using a wind velocity measuring instrument; S4, converting the optical signals received by the image sensor into digital signals, and transmitting the digital signals to the computer processing system; S5, calculating the thickness of an ice layer by using the computer processing system; and S6, calculating the liquid water content in the air flow. The invention has the advantages that: the shielded area of the optical signal changes with the change of ice thickness, so as to realize the real-time measurement of liquid water content; the method has the advantages of wide range of freezing environment, simple structure, and high measurement precision.

The invention discloses a chilli sauce preparing method and chilli sauce. Dry vegetable powder and dry fruit powder are used as raw materials and are obtained by dewatering and drying fresh fruits and fresh vegetables with a vacuum freeze dryer without adding any preservative, water in fresh fruits and fresh vegetables is directly sublimated into water vapor from solid ice in the vacuum freezing environment to be evaporated, dried fresh fruit particles and fresh vegetable particles are obtained, and nutrients in fresh fruits and fresh vegetables are not damaged. The chilli sauce prepared from dry vegetable powder and dry fruit powder does not require preservative and is easy to store. The dry vegetable powder and dry fruit powder can be easily matched with meat to obtain different kinds of chilli sauce products, nutrients are more balanced, and diversified development of chilli sauce products can be achieved.

The invention provides a low-warpage high-impact-resistance long fiber-enhanced polypropylene composite material and a preparation method. A production raw material of the low-warpage high-impact-resistance long fiber-enhanced polypropylene composite material is prepared from the following components: 50 to 73 parts of polypropylene, 5 to 12 parts of a flexibilizer, 1 to 3 parts of a compatilizer,15 to 40 parts of glass fiber and 0.4 to 1.0 part of an antioxidant. A production method of the low-warpage high-impact-resistance long fiber-enhanced polypropylene composite material comprises the following steps: mixing all the components except the glass fiber, bracing and pelletizing the mixture to obtain a polypropylene resin semi-finished product, soaking the glass fiber into the melted polypropylene resin semi-finished product, and bracing and pelletizing the mixture to obtain the low-warpage high-impact-resistance long fiber-enhanced polypropylene composite material. The polypropylenecomposite material disclosed by the invention is relatively low in warpage performance, is also relatively high in low-temperature impact resistance and relatively good in mechanical property, and can be applied to a freezing environment.

The invention provides a hydraulic lifting system and a heating method thereof. The hydraulic lifting system adopts an upper anchorage oil cylinder and a lower anchorage oil cylinder for clamping and loosening steel strands, so that the hydraulic lifting system is safe and highly-efficient in operation; and in a freezing environment, the hydraulic lifting system can realize heating for a hydraulic oil pump and a hydraulic oil way through a telescopic cylinder of a main oil cylinder by using the heating method of the hydraulic lifting system under the conditions of not increasing other parts or lifting a lifting structure so as to enable the hydraulic oil pump and the hydraulic oil way of the hydraulic lifting system to reach the temperature required for normal operation, and ensure that the hydraulic lifting system also can safely operate in the freezing environment.

The invention relates to the technical field of refrigerators, in particular to a water pan for an ice making refrigerator, an ice maker and a refrigerator. More than one through hole are formed in the bottom of the water pan for the ice maker refrigerator, a water baffle plate is arranged at the edges of all the through holes, more than one water receiving grooves are defined by the bottom and the water baffle plate. Through holes are formed in the bottom of the water pan, cold energy generated from ice making in the ice cube tray moves downwards from the through holes, the cold energy entersinto the ice storage chamber to lower the temperature of the ice storage chamber, thus the freezing environment of the ice cubes is improved, ice cubes are prevented from melting and adhesion, and meanwhile, the hardness of the ice cubes are improved.

The invention discloses a carbon fiber / silica hybrid material and a preparation method thereof; the preparation method comprises: (1) preparing carboxylated carbon fiber; (2) preparing polyacrylic-grafted carbon fiber; (3) preparing siloxane-grafted carbon fiber; (4) preparing a hybrid material with spherical silica grafted to carbon fiber surface; (5) drying in vacuum freezing environment. The preparation method of the invention has high grafting rate, the produced silica is evenly and spherically attached to the surface of the carbon fiber, the specific surface area of the carbon fiber is increased greatly, and the dispersibility of the fiber in matrix material is improved.

A refrigeration appliance includes a fresh food compartment for storing food items in a refrigerated environment having a target temperature above 0° C., a freezer compartment for storing food items in a sub-freezing environment having a target temperature below 0° C., a system evaporator for providing a cooling effect to at least one of the fresh food compartment and the freezer compartment, and an ice tray assembly disposed within the fresh food compartment for freezing water into ice pieces. The ice tray assembly includes an ice mold with an upper surface comprising a plurality of cavities formed therein for the ice pieces, a heater disposed on the ice mold and an ice maker refrigerant tube abutting at least one lateral side surface of the ice mold and cooling the ice mold to a temperature below 0° C. via thermal conduction and a cover having a water fill cup integrated into the cover and an outlet aligned with an inlet of the ice mold.

The invention discloses a wind indicator, and relates to a wind power generation wind indicator. The wind indicator comprises a wind vane and a rotating head driven by the wind vane to rotate; a protective cover is arranged on the rotating head, and is perpendicular to the wind vane; a heating device is arranged on the protective cover, and adopts a heater strip. Through the technical scheme that the heating device is arranged on the protective cover, the protective cover is taken as a guidance to quickly transmit heat to the wind vane and a rotating cover of the wind indicator, the problem that as the rotating cover and the wind vane of the wind indicator are easily frozen under the low temperature freezing environment, the wind indicator does not work is solved effectively. Meanwhile, the protective cover prevents sand, so that the rotating head is prevented from being blocked by sand.

The invention relates to the field of biological electron microscopes, in particular to an operable observation recording device for a cryoelectron microscope. The operable observation recording device comprises a liquid nitrogen supply device, a vacuum device, an experiment carrier, a manual operation device and a low-temperature shooting recording device; the liquid nitrogen supply device is fixedly connected to the front end of the experiment carrier; the vacuum device is fixedly connected to the rear end of the experiment carrier; the liquid nitrogen supply device and the vacuum device areboth communicated with the experiment carrier; the manual operation device is fixedly connected to the left end of the experiment carrier; the low-temperature shooting recording equipment is arrangedat the upper end of the experiment carrier in a clearance fit manner; and the manual operation device and the low-temperature shooting recording device are both arranged in the experiment carrier. The operable observation recording device has the beneficial effects that a relatively vacuum environment is provided for a frozen biological sample, so that a freezing environment is guaranteed; through vacuum isolation, the experiment safety is guaranteed; and a shooting angle of the sample can be adjusted in a multi-angle mode in all aspects, so that the shooting quality is guaranteed, the comprehensive observation is guaranteed, and the influence of liquid nitrogen on shooting in a vaporization process is reduced.

The invention relates to an unfreezing method for skipjack. The unfreezing method comprises the following steps of (1) rapidly taking out desired skipjack from freezing environment being minus 50-minus 60 DEG C, putting the taken-out skipjack in saline water of which the mass concentration is 1-3% and of which the temperature is 20-30 DEG C, and soaking the skipjack in the salt water for 50-90s; and (2) then putting the soaked skipjack in a container which can be subjected to microwave treatment, putting the container in a microwave oven, and performing microwave unfreezing. The unfreezing method disclosed by the invention has the advantages of being simple in technology, easy to operate, low in production cost, environmental-friendly and pollution-free, and has significant effect of maintaining the texture, the color, the freshness and the microorganisms of the skipjack, the characteristics of the skipjack, including mellow and full mouth feel, fresh bright color and elastic meat quality of the skipjack can be well maintained, the shelf life is prolonged, and the unfreezing method can be suitable for processing and producing of valuable fish meat variety of tuna and has broad application prospects.

The invention discloses a fiber reinforced composite material tower pole with anti-icing and deicing functions. The fiber reinforced composite material tower pole with the anti-icing and deicing functions comprises a tower pole body; the tower pole body is sequentially composed of a insulating and heat-protective layer, a structure layer, a carbon fiber heating layer and a insulating protective layer from the inside to the outside; the carbon fiber heating layer utilizes carbon fiber as a heating element, the two ends of the carbon fiber heating layer are correspondingly connected with conductive electrodes, and the conductive electrodes are connected with a control switch device in the hollow cavity of the tower pole through guide wires. According to the fiber reinforced composite material tower pole with the anti-icing and deicing functions, anti-icing and deicing of the surface of the fiber reinforced composite material tower pole under the low-temperature freezing environment are realized, the effect of icing on the internal structure of composite material tower pole is avoided, mechanical properties and carrying capacity of the composite material tower pole are enhanced, the service life of the composite material tower pole is prolonged, and the fiber reinforced composite material tower pole can be used in cold weather and harsh environment area.

The invention discloses a method of stabilizing a soft foundation through deep processing of a bagged sand bed in a freezing environment. The method comprises the following steps of freezing the soft foundation under natural freezing conditions so as to form a hard frozen hard shell layer on the surface of the soft foundation; laying filling sand on the whole soft foundation region; carrying out hydraulic reclamation on silt fine sand or medium-coarse sand in reclamation as a sand bed; arranging a vertical drainage system; arranging a horizontal drainage system; laying a sealing film; after conforming to the vacuum condition, carrying out deep vacuum preloading or preloading or vacuum united preloading. According to the method, the freezing environment is utilized scientifically, a construction process is optimized reasonably, the deep drainage consolidation treatment is only carried out on the soft foundation once, the construction cost is reduced by about 1 / 4, and meanwhile, the winter time, which is not suitable for construction routinely, is utilized, the method is scientific and environment-friendly, and the good economic benefit and social benefit can be produced.

The invention discloses a liquid nitrogen storage system for storing and fetching a single sample on a storage position in a liquid nitrogen tank. The system comprises the liquid nitrogen tank, wherein a sample storage assembly is arranged inside the liquid nitrogen tank. The system is scientific and reasonable in structure, and safe and convenient to use; the liquid nitrogen storage system is provided with the sample storage assembly, a plurality of samples can be conveniently stored in a groove at the top end of each large turntable, the large turntables can rotate independently under the action of a first bearing, and then the sample can be conveniently stored or fetched at a designated position of a designated large turntable according to the requirement of a user; and the whole selected sample working area is arranged on the storage position in the tank, the whole process is at the environment temperature consistent with the freezing environment temperature, namely about minus 185DEG C, therefore, repeated freezing and thawing of samples are thoroughly avoided, high requirements on safety and long-acting performance of biological samples in the accurate medical era are effectively guaranteed, the gap between traditional freezing storage racks is eliminated to save space, the available space of freezing is greatly expanded, and the storage capacity of the same space is maximized.