78 results about "Freezing point" patented technology

The invention discloses a smoothie forming control method and system for different materials, a computer and a storage medium. The method comprises the steps that hardness gear data and an operation temperature value and an operation temperature change rate in an ice making cavity are obtained in real time; when the operating temperature change rate meets a freezing point triggering rule, obtaining a gear temperature threshold value and gear control data of a corresponding hardness gear according to the current operating temperature value, the hardness gear data, a preset freezing point type database and a type gear control library; when the operation temperature value is smaller than or equal to the gear temperature threshold value, heat preservation maintaining work is carried out, and timing is carried out; when the timing time meets the gear heat preservation adjusting rule, the gear temperature threshold value is updated, and heat preservation maintaining work is carried out; and when the gear temperature threshold value is smaller than or equal to the gear heat preservation maintaining threshold value, final heat preservation maintaining work is carried out according to the gear heat preservation maintaining threshold value, so that the current smoothie hardness is maintained. According to the invention, the material type can be automatically detected, corresponding smoothie forming control work can be carried out, and the smoothie tastes good.

The invention provides a control method, device and equipment for preparation of hypotonic nutritious food and a storage medium, and relates to the technical field of preparation control of nutritious products. The method comprises the following steps: obtaining a measured osmotic pressure corresponding to a mixed material of the to-be-prepared hypotonic nutritious food; the measured osmotic pressure is obtained by measuring the osmotic pressure of a material sample of the mixed material based on a freezing point method; inputting the measured osmotic pressure into the trained linear regression analysis model to obtain a predicted value of the peristalsis promotion rate; the model is obtained based on milk powder reconstituted fluid osmotic pressure and zebra fish intestine peristalsis promotion rate training. Determining a preparation process optimization scheme according to the predicted value of the peristalsis promotion rate and the early warning condition of the peristalsis promotion rate, and adjusting process parameters according to the preparation process optimization scheme; wherein the process parameters in the optimization scheme of the preparation process comprise one or more of the content range of different types of proteins, the ratio of exogenous calcium to milk-derived calcium, the homogenizing pressure and the spray drying temperature. According to the method, functional evaluation can be rapidly completed, and preparation parameters can be optimized.

A frozen confection comprising: 25 wt % to 40 wt % freezing point depressants having a number average molecular weight of 200 g mol−1 to 275 g mol−1; distilled monoglycerides in an amount of 0.04 wt % to 1 wt %; and soluble fibre in an amount of 1.4 wt % to 15 wt %.

The invention relates to a portland cement product for negative temperature and application thereof, in particular to application of a negative temperature product containing portland cement clinker and an anti-freezing agent in preparation of a negative temperature product capable of maintaining mechanical properties under a negative temperature condition. According to the present invention, the negative temperature environment applicability is strong, the temperature range of the conventional winter construction can be reached, the rapid strength development rate can be maintained in the negative temperature environment, the hydration heat release peak is advanced by 2-3 h, the construction requirement without the external heat source can be met, the hydration product mainly comprises ettringite and C-S-H, and the foundation is established for the cement product strength. The adopted mixing solution not only can prevent freezing, but also can accelerate coagulation. On one hand, the anti-freezing agent is added into the water, so that the vapor pressure of the water is changed, and the freezing point of the solution is reduced; and on the other hand, the anti-freezing agent contains a component for promoting hydration of the sulfur silicate cement, so that the sulfur silicate cement can be rapidly hydrated under a negative temperature condition, and the purposes of rapid setting and hardening and strength improvement of a cement product are achieved.

A storage and retrieval system includes a grid framework structure including a track system forming a grid. A load handling device is moveable on the track system. Stacks of storage containers are arranged in each of a plurality of storage columns located beneath the track system. The load handling device includes a lifting device arranged to lift one or more storage containers, each including a base wall and opposing sidewalls and end walls extending from the base wall to form a box-like structure having an opening, and a lid for closing the opening to define a cooling tote. At least one of the base wall, and / or opposing sidewalls and / or opposing end walls and / or the lid of the cooling tote includes a pocket housing a refrigerant with a freezing point in a range of −30° C. to 0° C. for storing frozen or chilled foods.

The application relates to the technical field of oil product detection, in particular to a full-automatic condensation point tester and a determination method, which comprises a base and a test tube, the top of the base is fixedly connected with a mounting seat, the surface of the base and the mounting seat is provided with a test bath mechanism and a supporting mechanism, the test bath mechanism enables the test tube placed in the test bath mechanism to be adjusted at multiple angles by rotating the test bath driven by a motor, replaces the original manual bolt structure, controls the rotating angle of the motor through a preset program, realizes accurate positioning, avoids the complicated operation of adjusting each hole in the original structure, prevents the angle from deviating during the test by mechanically clamping and locking the rotating shaft, and then the motor and the electric push rod replace manual adjustment, realize double locking effect, can prevent accidental displacement, and improve the accuracy and efficiency; the clamping mechanism enables four arc-shaped clamping plates to exert uniform radial pressure on the outer wall of the test tube through the first spring, the inner diameter of the clamping plate is designed to gradually increase from top to bottom, and different outer diameter test tubes are compatible.

A coolant composition includes a mineral oil or a synthetic oil and a surfactant, in which a conductivity of the coolant composition is lower than 0.1 μS / cm, and the surfactant is a nonionic surfactant that is a fatty acid ester having a freezing point of lower than −15° C. and having a cyclic structure.

A freezing point depressant (FPD) fluid distribution apparatus and ice protection system for a propeller blade, the apparatus comprising an upper section and a lower section, wherein the upper section is configured to distribute FPD fluid to the low pressure side of a propeller blade, and the lower section is configured to distribute FPD fluid to the high pressure side of a propeller blade, and wherein the upper and lower sections each comprise one or more FPD fluid chambers, the or each FPD fluid chamber comprising an associated fluid-permeable cover.

A substrate processing apparatus and a substrate processing method capable of suppressing dew condensation on a substrate are provided. The substrate processing apparatus includes: a stage configured to be rotatable; a plurality of holding portions provided on one side of the stage and holding a substrate; a liquid supply portion that supplies a liquid having a temperature higher than a freezing point to a surface of the substrate on an opposite side of the stage; a cooling portion that supplies a cooling gas to a space between the stage and the substrate; a moving portion that changes a distance between the stage and the substrate held by the plurality of holding portions; and a controller that controls the cooling portion and the moving portion. The controller performs a cooling process and a thawing process. In the cooling process, the distance is made a first distance by controlling the moving portion. In the thawing process, the distance is made a second distance longer than the first distance by controlling the moving portion.

The present application relates to the field of food processing technology, and provides a method and a device for purine reduction, and an equipment and an electronic equipment and a storage medium. The method for purine reduction includes the following steps: first cooling step: performing first cooling treatment on a food material to be treated at a first preset cooling rate to reduce a temperature of the food material to be treated to a temperature below a freezing point. By performing first cooling treatment on a food material to be treated at a first preset cooling rate to reduce a temperature of the food material to be treated to a temperature below a freezing point, the activity of ATP-degrading enzyme in the food material to be treated can be rapidly inhibited, which can quickly and effectively inhibit the generation of hypoxanthine, thereby reducing the generation of hypoxanthine, reducing the risk of hyperuricemia and gout, and having little effect on the taste and quality of the food material.

The invention relates to the technical field of oil production engineering, in particular to an oil well shaft watering temperature raising parameter determination method, and aims to solve the technical problem that the watering amount and the watering temperature cannot be determined by a watering temperature raising process in the related technology. The oil well shaft watering temperature raising parameter determination method comprises the following steps that S1, a relation function corresponding to the wellhead output liquid temperature and the liquid production capacity of an oil well in different seasons is found out; s2, according to the liquid production capacity Q1 of the target oil well, a corresponding relation function is selected, and the original output liquid temperature T1 of the target oil well is calculated; and S3, the temperature T0 of new output liquid of the target oil well is set, the required watering amount Q2 and watering temperature T2 of the target oil well are calculated according to the energy conservation calculation formula Q2T2 = k (Q1 + Q2) T0-Q1T1, T0 is larger than the crude oil freezing point of the target oil well, and the coefficient k is 0.7-1. According to production basic data of an oil well, the watering amount and the watering temperature needed by shaft watering temperature increasing are obtained through simulation calculation, and data guidance is provided for the shaft watering process.

To provide a household refrigerator that can store food while suppressing chilling damage and maintaining its quality. [Solution] In this embodiment, the household refrigerator 1 has a control unit 45 that repeatedly performs a refrigeration cooling operation to cool the refrigerated storage compartment and a freezing cooling operation to cool the freezer compartment, while repeatedly performing a cooling and preservation operation to adjust the refrigerated storage compartment to a first temperature above the freezing point, and a recovery operation to adjust the refrigerated storage compartment to a second temperature higher than the first temperature to recover from low-temperature damage to food. The control unit performs such a procedure that the total time for performing one cooling and preservation operation and one recovery operation is longer than the total time for performing one refrigeration cooling operation and one freezing cooling operation.

The invention relates to an icing detection method of an ice crusher, which is applied to a controller of the ice crusher, and the method comprises the following steps: in a stable observation time period of a refrigeration stage, obtaining a current temperature of a mixture and a current stress signal of a stirring part in a stirring process; determining a target freezing point corresponding to the mixture, and setting a dynamic detection temperature window based on the target freezing point; when the current temperature falls into the dynamic detection temperature window, performing multi-frequency energy analysis on the current stress signal to obtain a multi-frequency energy value; determining a normal stress fluctuation value corresponding to the stress response of the stirring part at the current temperature; and if the multi-frequency energy value exceeds the preset multiple of the normal stress fluctuation value, it is judged that the ice crystal adhesion risk exists, and the refrigeration system is controlled to execute intervention operation. According to the invention, the abnormal icing condition of the ice crusher can be identified.

The invention relates to gel pen ink with low temperature resistance, which adopts a humectant A capable of enabling an ink system to have a low freezing point, a humectant B capable of endowing the ink system with high moisture retention, and a humectant C capable of endowing the ink system with auxiliary moisture retention and lubricity, so that a water-based organic solvent system has the characteristic of low freezing point; the freezing point of the ink is reduced, so that the problem of phase separation caused at low temperature is avoided, and the gel pen ink can be maintained to have good moisturizing performance and certain lubricity so as to maintain good writing smoothness; a compound system of the high-shear thickening agent A and the low-shear thickening agent B is adopted, so that the ink can still keep good non-Newtonian fluid characteristics at a low temperature and has normal viscosity and thixotropic performance, meanwhile, the viscosity stability of the ink is maintained by using the antifreeze agent, the problem that the viscosity of the ink is suddenly changed due to environment change is avoided, and the viscosity stability of the ink is improved. Therefore, the stability of the ink is maintained.

The invention relates to the technical field of laundry products, in particular to a low-temperature high-concentration washing liquid and a preparation method thereof. The cleaning agent is prepared from the following components in percentage by weight: 38% of isomerized 1307, 28% of secondary alcohol aeo-9, 10% of propylene glycol, 0.3% of compound enzyme, 2% of glycerol, 21.2% of deionized water and 0.5% of essence. According to the low-temperature high-concentration washing liquid and the preparation method thereof, the isomerized 1307 and the secondary alcohol AEO-9 are compounded according to a specific proportion, and the synergistic anti-freezing effect of the propylene glycol and the glycerol is combined, so that the freezing point of a system is remarkably reduced, the pH value can be adjusted according to the actual situation, and the low-temperature high-concentration washing liquid is prepared. The prepared washing liquid can still keep good fluidity after being stored for a long time at 0 DEG C or even lower temperature, is free of crystallization and solidification, and solves the problem of freezing of highly concentrated products in winter.

The present disclosure addresses the problem of providing a phase change determination system capable of determining the occurrence of a phase change. A phase change determination system (1) is provided with: a temperature sensor (31) for acquiring the temperature of a coolant (21); a database (43) for storing a reference temperature set in association with the coolant (21); and a determination unit (47) that determines whether or not the phase change has occurred in the coolant (21) on the basis of the acquisition results of the temperature sensor (31) and the reference temperature. The reference temperature includes a first reference temperature set to be lower than the freezing point of the coolant 21, and the determination unit 47 determines that the coolant 21 begins to solidify by changing to rise within a temperature interval lower than the first reference temperature according to the acquisition result of the temperature sensor 31.

The utility model provides a dairy product detection work station which comprises a temporary storage mechanism used for storing a container containing a sample to be detected; the pretreatment mechanism is used for carrying out oscillation and uncovering treatment on the container; the nitrite detection mechanism is used for performing nitrite detection on the to-be-detected sample in the container; the density detection mechanism is used for detecting the density of the to-be-detected sample in the container; the freezing point detection mechanism is used for carrying out freezing point detection on the to-be-detected sample in the container; the acidity detection mechanism is used for detecting the acidity of the to-be-detected sample in the container; and a transfer mechanism. According to the dairy product detection work station, multiple functions of caching, pretreatment, nitrite detection, density detection, freezing point detection, acidity detection and the like are integrated, and the efficient transfer mechanism is arranged, so that continuous and rapid detection of dairy products can be realized, and key indexes such as nitrite content, density, freezing point and acidity in the dairy products can be accurately measured; and automation and intellectualization of the detection process are realized.

The present application discloses a vapor chamber, a radiator, and an electronic device. The vapor chamber comprises a first substrate, a second substrate, and a capillary layer. The second substrate and the first substrate are stacked and define a cavity, and a cooling medium is arranged in the cavity. The capillary layer is arranged in the cavity and used for providing capillary force for the cooling medium during return. The first substrate is provided with a recessed part recessed towards the second substrate. The capillary layer is provided with a first area corresponding to the recessed part, and a clearance groove is formed in the first area. According to the vapor chamber in the present application, a clearance groove is formed in the position of a capillary layer corresponding to a recessed part, so that the size of a base material of the capillary layer in the area is reduced, thereby reducing the liquid storage amount of the capillary layer in the area. When the environment temperature is decreased below the freezing point of a cooling medium, the vapor chamber has larger space to accommodate the change of the volume increase caused by freezing of the cooling medium.

The long-distance horizontal freezing fixed-point pressure relief method comprises the steps that firstly, an orifice device is installed, horizontal pressure relief holes are drilled in the positions corresponding to the orifice device, at least two pressure relief holes with different heights are formed in the same vertical plane, and the horizontal depths of the pressure relief holes with different heights are different; a pressure relief pipe is arranged in the pressure relief hole at the second height or at the second height and below the second height; and finally, the pressure relief hole corresponding to the area needing pressure relief is selected, and the orifice device corresponding to the pressure relief hole is opened for pressure relief. The pressure relief holes with different heights are matched to perform pressure relief on the whole section of long-distance area, and each pressure relief hole only performs pressure relief on the pressure relief area within a certain distance, so that the phenomenon that the pressure is easy to relief at the position close to the hole opening and the pressure relief effect is poor at the position far away from the hole opening is avoided; and therefore, the pressure relief uniformity of the whole long-distance pressure relief area is improved, and the technical problem of uneven deformation of the stratum caused by poor pressure relief uniformity of an existing pressure relief mode is solved.

One embodiment of the present invention provides an ice cream base composition, and a method for preparing ice cream by using same, the ice cream base composition comprising: a solvent part including a liquid moisture matrix and ice crystals dispersed in the liquid moisture matrix; and a solute part including a freezing point depressant and a stabilizer, which are dissolved in the liquid moisture matrix, wherein the calories of the ice cream base composition is 40 kcal / 100 mL or less, the freezing point of the ice cream base composition is adjusted using the concentrations of the freezing point depressant and / or the stabilizer, which change thermodynamically depending on the ambient temperature, and the phase and viscoelasticity of the ice cream base composition are adjusted using the concentration of the stabilizer, which changes thermodynamically depending on the ambient temperature.

The invention relates to air transport and is intended for preventing the formation of ice on the outer surfaces of aircraft. An anti-icing coating on a protected surface (1) contains a water-soluble adhesive layer (2), and solid particles (3) of a freezing point depressant which have a linear size of not more than 0.2 millimetres. The water-soluble adhesive layer reduces the adhesive strength of ice, and the given size of the particles (3) causes a minimum of added aerodynamic resistance. A method and means for applying the coating are also proposed.

The present application relates to the technical field of oil production engineering, and particularly relates to a method for determining water-mixing and temperature-raising parameters of an oil well wellbore, which aims to solve the technical problem that the water-mixing and temperature-raising process cannot determine the water-mixing amount and the mixed water temperature in the related art. The method for determining water-mixing and temperature-raising parameters of an oil well wellbore comprises the following steps: S1: finding out a relationship function corresponding to the wellhead produced liquid temperature and the produced liquid amount of an oil well in different seasons; S2: according to the produced liquid amount Q1 of a target oil well, selecting a corresponding relationship function to calculate the original produced liquid temperature T1 of the target oil well; S3: setting a new produced liquid temperature T0 of the target oil well, and according to an energy conservation calculation formula Q2T2=k(Q1+Q2)T0-Q1T1, calculating the required water-mixing amount Q2 and the water-mixing temperature T2 of the target oil well, wherein T0 is greater than the crude oil freezing point of the target oil well, and the coefficient k is 0.7-1. According to the production basic data of the oil well, the method simulates and calculates the required water-mixing amount and the water-mixing temperature of the wellbore water-mixing and temperature-raising process, and provides data guidance for the wellbore water-mixing process.

The preparation method comprises the following steps: adding purified water and an enzyme preparation into lard oil, and carrying out enzymolysis for 20-60 minutes under the conditions that the temperature is kept at 40-65 DEG C and the pH value is 5-8, so as to obtain enzymatic hydrolysate; taking the enzymatic hydrolysate, adding reducing sugar, amino acid, spices and fresh food, fully mixing, carrying out Maillard reaction at the reaction temperature of 90-130 DEG C for 15-60 minutes, and sieving to obtain an oil-phase reaction solution; and taking the oil-phase reaction liquid, adding vegetable oil and an emulsifier, fully mixing, passing through a colloid mill, and homogenizing to obtain the flavored animal fat. The flavored animal fat with the low freezing point prepared by the invention can provide the mouth feel of the animal fat after being added into a terminal product, is not easy to solidify, and can effectively improve the state of the animal fat.

The invention relates to the technical field of flat valves, in particular to a single-plate flat valve with an anti-freezing function, which comprises a valve body, an anti-freezing valve core, a valve rod, a valve rod, a valve rod, a valve rod and a valve rod, and is characterized in that the valve body is internally provided with an on-off channel formed by a valve seat; the valve cover is hermetically connected to the top of the valve body; the bracket is hermetically connected to the top of the valve cover; the driving assembly is hermetically connected to the top of the bracket; one end of the valve rod is connected with the valve plate, and the other end sequentially penetrates through the valve cover and the support to be connected with the driving assembly; an anti-freezing cavity formed among the valve deck, the support, the driving assembly and the valve rod communicates with an anti-freezing liquid injection opening formed in the support. The support is further provided with an anti-freezing solution injection opening used for injecting anti-freezing solution into the anti-freezing cavity. The anti-freezing cavity defined by the valve deck, the support, the driving assembly and the valve rod is filled with the anti-freezing liquid, the upper portion of the valve rod is immersed in liquid with the extremely low freezing point in the whole process, and therefore the problem that the valve cannot be opened and closed due to the fact that the valve rod is frozen and blocked is effectively solved.

The utility model relates to a sugar-free smoothie preparation device, which comprises a preparation container, which is provided with a raw material inlet and a smoothie outlet and is used for inputting raw materials and outputting smoothie; the low-temperature container is used for cooling the preparation materials, so that the preparation materials in the preparation container are kept in a low-temperature state; the preparation container is communicated with an air pump; the air pump pressurizes the interior of the preparation container, and meanwhile, the low-temperature container cools the preparation container, so that the raw materials in the preparation container form a high-pressure low-temperature preparation material; and when the prepared materials are output from the smoothie outlet, normal-temperature and normal-pressure solid smoothie is formed. Compared with the prior art, the ice making device has the beneficial effects that the ice sand is made by changing the freezing point according to the change relation between the freezing point and the pressure, and ice can be made from a sugar-free raw material; the system is easy and convenient to prepare the smoothie, ice blocks do not need to be stored, the smoothie is prepared at any time, and daily use of families is facilitated.

Freezing device or thawing device for a medium (2) to be frozen or thawed comprising - a chamber (3) configured for receiving at least one container (4), preferably at least one bottle, filled with the medium (2), preferably a pharmaceutical liquid, and configured for receiving a heat transfer liquid (5) which has a lower freezing point than the medium (2), - and at least one flexible membrane (6) configured to separate the at least one container (4) from the heat transfer liquid (5), wherein the freezing device (1) has the function that the medium (2) in the at least one container (4) is frozen or thawed by transferring heat from the medium (2) through the at least one container (4) and the at least one membrane (6) to the heat transfer liquid (5), or vice versa.

The application discloses a kind of super-low freezing point condensate oil freezing point test experimental device and method, the experimental device includes support system, cooling system, sample placement system, temperature testing device;The sample placement system includes glass test tube and the sealing plug of sealing the glass test tube, the glass test tube is used to hold condensate oil to be tested, and the lower part of the glass test tube is equipped with three parallelly arranged scale lines A, B, C from bottom to top;The temperature testing device is used for testing the temperature of the condensate oil to be tested by passing through the sealing plug;The cooling system includes glass sleeve, isolation glass bottle, open glass bottle, the glass test tube is arranged in the glass sleeve, the glass sleeve is arranged in the isolation glass bottle, and the isolation glass bottle is arranged in the open glass bottle;The support system has height adjustment and rotation function.The application can predict freezing point in advance, and can efficiently test the freezing point of super-low freezing point condensate oil.

The invention relates to an ice-temperature storage method for prolonging the storage and preservation period of figs, and belongs to the technical field of fruit preservation. The method aims at solving the problems that figs rot after being picked at normal temperature for 1 day, are easy to frostbite and wilt after being stored at low temperature and depend on chemical preservatives in the prior art. The invention provides a green physical fresh-keeping scheme which comprises the following steps: selecting 70-80% mature figs, and pre-cooling at 4 + / -2 DEG C for 4-6 hours to remove field heat; randomly sampling and measuring a freezing point, and then setting a storage temperature; placing the pre-cooled fruits in a buffer temperature zone with the temperature difference being greater than or equal to 2 DEG C above the freezing point for treatment for 4-6 hours, and slowly reducing the temperature of the fruits to 0-2 DEG C; and finally, storing for a long time at the temperature of-2 DEG C to-1 DEG C below the freezing point and higher than the freezing point under the humidity of 90 + / -5%. According to the method, the figs enter deep dormancy through precise ice temperature control, maturation and senescence are remarkably delayed, the storage period can be prolonged to 6 days or above, the hardness is kept to be larger than or equal to 9N, the rotting rate is lower than 5%, and the method is suitable for commercialized preservation of the picked figs.

The invention discloses a radio frequency assisted freezing system which comprises a radio frequency generation module, a radio frequency processing module, a low-temperature freezing module and an optical fiber temperature measurement module, the radio frequency generation module can provide stable pulse radio frequency signals and comprises a radio frequency generator, a relay pulse generator and an impedance matcher, and the relay pulse generator and the impedance matcher are electrically connected with the radio frequency generator. The radio frequency processing module is used for providing a radio frequency action space for food and comprises a radio frequency processing device, the low-temperature freezing module can provide freezing cooling capacity for the system and comprises a low-temperature refrigerator, the impedance matcher and the radio frequency processing device are arranged in the low-temperature refrigerator, and the optical fiber temperature measuring module is arranged on the outer side of the low-temperature refrigerator; and the optical fiber temperature measurement module is used for accurately monitoring the food temperature. Through the synergistic effect of the radio frequency field and low-temperature freezing, the crystallization process of water molecules in the food can be effectively interfered, the food is promoted to generate an obvious supercooling phenomenon, a large number of ice nucleuses are formed at the temperature lower than the freezing point in an explosive mode finally, and the final quality of the frozen food is greatly improved.

A manufacturing method for metallic parts, the method comprising:immersing a metallic material in a metal bath of a first component, the metallic material comprising a second component having a positive heat of mixing relative to the first component and a third component having a negative heat of mixing relative to the first component, and the metallic material consisting of a chemical compound, an alloy, or a nonequilibrium alloy having melting points above the freezing point of the metallic bath;Selectively dissolving the third component in the metal bath to form a metallic part with extremely fine interstices, the selective dissolving being achieved by:controlling the metal bath so that its temperature is lower than the minimum liquidus temperature within the compositional variation range in which the proportion of the third component in the metallic material ranges from the original proportion to no proportion;