2036 results about "Cooling temperature" patented technology

One ozone concentrating chamber is provided therein with a part of a cooling temperature range where ozone can be selectively condensed or an oxygen gas can be selectively removed by transmission from an ozonized oxygen gas, and a part of a temperature range where condensed ozone can be vaporized, and condensed ozone is vaporized by moving condensed ozone with flow of a fluid or by gravitation to the part where condensed ozone can be vaporized, whereby the ozonized oxygen gas can be increased in concentration. Such a constitution is provided that a particle material 13 for condensation and vaporization filled in the ozone concentrating chambers 11 and 12 has a spherical shape of a special shape with multifaceted planes on side surfaces, or an oxygen transmission membrane 130 capable of selectively transmitting an oxygen gas in an ozone gas is provided.

A reusable, multi-walled cooler bag for maintaining a cool temperature within the bag includes: (a) a front portion comprised of at least one front layer; (b) a rear portion comprised of at least one rear layer, the layers being identical to one another, the front portion being sealed to the rear portion along at least two of its edges, the bag having a closable opening at its upper end; and (c) a reclosable fastener mechanism for opening and closing the opening in the bag; wherein the front or rear portions hold nontoxic coolant material between the front and / or rear layers; and the bag has a water-tight interior for storing items to be kept cool.

A thermoacoustic cooling system for cooling an object such as a microelectronic chip. Heat produced by the object is transferred to a thermoacoustic engine. The thermoacoustic engine may include a resonator defining a chamber. A stack may be positioned in the chamber with one side of the stack adjacent to the heat source, and the opposite side of the stack adjacent to air in the chamber having a relatively cooler temperature. One or more orifices may be formed in the resonator such that the acoustic power generated by the thermoacoustic engine creates a synthetic jet to circulate air and move the air away from the object being cooled. Thus, the heat produced by the object is used to power the thermoacoustic engine to thereby remove heat from the object. The thermoacoustic engine may use no moving parts and may require no external power source other than the object being cooled.

Apparatus for use in controlling the temperature of the water in a kitchen sink (including a bathtub and / or other type of sink) for a reasonably extended period of time, without the necessity of adding additional hot water to the basin of the sink itself, to offset the loss of heat in the water as it naturally cools down over time. The invention also applies to the ability to maintain the water in a sink at a cool temperature, as opposed to a warm temperature. The preferred form of the invention provides a temperature controlling apparatus for a kitchen sink that can be integrally incorporated into the design of newly manufactured sink(s), and when activated by the user, automatically maintains the temperature of the water in the basin of a sink at an temperature level determined by the user.

The invention relates to a super-thick steel plate for low yield ratio buildings with 460 MPa grade yield strength and a manufacturing method, which belongs to the technical field of high strength low alloy construction steel. The steel pipe comprises the following components by weight percent: 0.14 to 0.18 percent of C, 0.35 to 0.45 percent of Si, 1.40 to 1.50 percent of Mn, 0.025 to 0.035 percent of Nb, 0.040 to 0.050 percent of V, 0.010 to 0.020 percent of Ti, smaller than 0.020 percent of P, and the balance Fe. The rolling technology is as follows: the heating temperature is 1220 to 1250 DEG C, the tapping temperature is 1200 to 1230 DEG C, and two stages (ausrenitic recrystallization region and ausrenitic non-recrystailization region) are used for controlling rolling. The heat treatment technology is as follows: steel plates, the thickness of which is larger than or equal to 80 mm, are obtained after controlled rolling and cooling are carried out on continuously cast bloom, a two-phase region is heated up to 800 to 850 DEG C and insulated for 10 to 20 minutes, and then water quenching is adopted and the final cooling temperature is controlled to be less than or equal to 100 DEG C; 450 to 600 DEG C tempering treatment is carried out on the quenched steel plates, and finally the high strength low alloy construction steel plates are obtained. The steel plate not only has excellent comprehensive mechanical properties, but also lowers the cost and reduces the waste of resources.

A thermoacoustic cooling system for cooling an object such as a microelectronic chip. Heat produced by the object is transferred to a thermoacoustic engine. The thermoacoustic engine may include a resonator defining a chamber. A stack may be positioned in the chamber with one side of the stack adjacent to the heat source, and the opposite side of the stack adjacent to air in the chamber having a relatively cooler temperature. One or more orifices may be formed in the resonator such that the acoustic power generated by the thermoacoustic engine creates a synthetic jet to circulate air and move the air away from the object being cooled. Thus, the heat produced by the object is used to power the thermoacoustic engine to thereby remove heat from the object. The thermoacoustic engine may use no moving parts and may require no external power source other than the object being cooled.

According to one embodiment, an apparatus includes a fluid coolant and structure which reduces a pressure of the fluid coolant through a subambient pressure at which the coolant has a cooling temperature less than a temperature of the heat-generating structure. The apparatus also includes structure that directs a flow of the fluid coolant in the form of a liquid at a subambient pressure in a manner causing the liquid coolant to be brought into thermal communication with the heat-generating structure. The heat from the heat-generating structure causes the liquid coolant to boil and vaporize so that the coolant absorbs heat from the heat-generating structure as the coolant changes state. The structure is configured to circulate the fluid coolant through a flow loop while maintaining the pressure of the fluid coolant within a range having an upper bound less than ambient pressure. The apparatus also includes a first heat exchanger for exchanging heat between the fluid coolant flowing through the loop and a second coolant in an intermediary loop so as to condense the fluid coolant flowing through the loop to a liquid. The apparatus also includes a second heat exchanger for exchanging heat between the second coolant in the intermediary cooling loop and a body of water on which the ship is disposed.

The cryosurgical kit and method of use relates to the combined use of biodegradable, imageable, drug(s) carriers, vectors or microcapsules deposited into a target tissue region inside a body and the controlled cooling of the target tissue region. A minimally invasive method of treatment that applies a cooling device to a selected tissue region, uses a vibrating resonant frequency delivery device to inject drug(s) carriers (microcapsules) containing therapeutic and contrast agents into tissue region(s) submitted to cooling temperatures, successive real-time imaging of the microcapsule deposition and later detection of the progressive degradation of microcapsules with ultrasound imaging which provides estimation of sustained release rates and for planning re-dosing regimens. The thermosensitive microcapsules preferably contain ethiodol, a contrast agent for Ultrasound and / or X-Ray imaging, and cytotoxic drug(s).

A basic vest is formed of a rear panel and laterally disposed front panels. The panels are fabricated of a material of low thermal insulation capabilities. A plurality of pockets has two laterally spaced rectangular front sheets located on the exterior surface of the front panels and two laterally spaced rectangular rear sheets located on the exterior surface of the rear panel. Each sheet has peripheral edges stitched to an associated panel and a free peripheral edge. An opening with fasteners there adjacent allow a wearer to open and close the opening. The sheets are fabricated of a material of high thermal insulation capabilities. A plurality of cooling packs is adapted to be placed in the pockets for dissipating the cooling temperature to a wearer.

An energy-conserving building covering material includes a building panel, such as a roofing panel or a siding panel, coated with a thermomorphic material that can change its energy reflectance. The thermomorphic coating material can be combined with a carrier material, or it can be encapsulated with a solvent and optionally a color former in a microcapsule suspended in the carrier material. Alternatively, the building panel can include an electrophoretic material sandwiched between two transparent panels acting as electrodes. The building panel, when covered with said coating material and carrier material combination, can reflect radiant energy during warmer temperatures and can absorb radiant energy during cooler temperatures and re-radiate said absorbed energy into an interior of a building.

The invention relates to a method for producing an X80 grade large deformation resistant pipeline steel medium plate. The economic component design with low carbon is adopted to perform controlling and rolling stages on ingot, namely rolling the grain refined zone and the non grain refined zone. The method comprises: firstly, air cooling and relaxing after finished rolling is performed so that the temperature of a steel plate before entering water and cooled is reduced below the phase change point Ar3 between 30 and 50 DEG C, and 50 to 70 percent of austenite in the relaxing process is converted into proeutectoid ferrite; and secondly, laminar flow cooling is performed on the steel plate within the range of the cooling speed between 20 and 35 DEG C per second, the finished cooling temperature is controlled within the range of between 250 and 400 DEG C; and in the water cooling process, the remaining austenite is converted into bainite structure, and proeutectoid ferrite + bainite double-phase structure is obtained. The intensity and the plasticity index of the finished product satisfy the following requirements: the yield strength Rt0.5 is 530 to 630MPa, the intensity of tension Rm is 625 to 825 MPa, the yield ratio Rt0.5 / Rm is less than or equal to 0.80, and the homogeneous deformation tensile stretch UEL is more than or equal to 10 percent.

A method of adjusting temperatures of products to a desired product temperature. The method may include enabling the selection of a product, enabling the selection of the desired product temperature, enabling the placement of the product into a temperature adjust device, circulating a liquid or a gas through the temperature adjust device, the liquid or the gas having been cooled to a cool temperature less than the desired product temperature or heated to a warm temperature greater than the desired product temperature, determining when the desired product temperature has been obtained, and ceasing circulation of the liquid or a gas through the temperature adjust device.

The invention relates to an incombustible mixed refrigerant suitable for the copious cooling temperature of 90-140DEG C below zero, which comprises the following five groups of substances: the first group is nitrogen, argon, methane or mixture; the second group is R14; the third group is R23, R116, R170, R1150, R41 or mixture; the fourth group is R218, R125, R32, R143a, R290, R1270, R13I1, R134, R134a, R152a, R1216 or mixture; the fifth group is R1234ze, R245cb, R227ea, R3110, R236fa, R254cb, R143, R236ea, R245fa, R329mcc, R347mcc, R338mcf, R245eb, R245ca, R338mee, R338mcc or mixture; the molar concentrations of the five groups are respectively 5-35%, 10-40%, 5-20%, 5-20% and 5-25%. The incombustible mixed refrigerant suitable for the copious cooling temperature of 90-140DEG C below zero has the advantages of low integral greenhouse effect, no ozone damage and the like, is safe in a regeneration type throttling and refrigerating system, and refrigeration in the temperature zone of 90-140DEG C below zero can be realized.

A climate control system includes a control head having a warmer / cooler temperature control for providing relative thermal comfort. A thermal comfort rating (TCR) corresponding to a range of passenger cabin temperatures is determined based upon a comfort level selection by an occupant using the control head. A control strategy employs look-up tables corresponding to the TCR to determine the speed of an electric compressor and the position of a temperature control blend door. The strategy provides for a relatively fast ramp down to a minimum compressor speed to improve fuel economy while maintaining a relative level of thermal comfort.

The invention provides a high-performance low-carbon bainitic structural steel, the chemical composition of which is: C: 0.04% to 0.07%, Si: 0.20% to 0.50%, Mn: 1.50% to 1.80%, Nb: 0.03% to 0.06% %, Ti: 0.005% to 0.030%, Cr: 0.25% to 0.50%, Cu: 0.30% to 0.60%, Ni: 0.20% to 0.50%, Als: 0.010% to 0.070%, and the balance is Fe and unavoidable Impurities. The rolling process adopts TMCP+RPC process, the heating temperature before rolling is 1050-1220°C, two-stage controlled rolling is adopted, the rolling temperature in the recrystallization zone is controlled at ≥1000°C, and the rolling temperature in the non-recrystallization zone is controlled at 950°C~ (Ar3+0°C~100°C), the cumulative rolling deformation in the non-recrystallized area is greater than 50%, relax for 10-120s after rolling, and then accelerate cooling, the end cooling temperature is 380-530°C, and then air-cooled. The invention has low cost, does not need complex heat treatment, can obtain bainite structure without quenching and tempering, has high strength, high toughness, and good welding and weather resistance.

A catheter-based system for performing a cryoablation procedure uses a precooler to lower the temperature of a fluid refrigerant to a sub-cool temperature (−40° C.) at a working pressure (400 psi). The sub-cooled fluid is then introduced into a supply line of the catheter. Upon outflow of the primary fluid from the supply line, and into a tip section of the catheter, the fluid refrigerant boils at an outflow pressure of approximately one atmosphere, at a temperature of about −88° C. In operation, the working pressure is computer controlled to obtain an appropriate outflow pressure for the coldest possible temperature in the tip section.

The present invention provides a process of producing a family of hot rolled dual phase steel sheets having excellent formability and stretch flangeability, with yield strengths of from about 500 MPa to about 900 MPa from a single steel chemistry consisting of, by weight percent, 0.02-0.15% of C, 0.3-2.5% of Mn, 0.1-2.0% of Cr, 0.01-0.2% Al, 0.001-0.01% Ca, not more than 0.1% P, not more than 0.03% S, not more than 0.2% Ti, not more than 0.2% V, not more than 0.2% Nb, not more than 0.5% Mo, not more than 0.5% Cu, not more than 0.5% Ni, the balance being Fe and unavoidable impurities. A slab or ingot of this composition is reheated to a temperature of between 1050° C. and 1350° C. and held at this temperature for at least 10 minutes, then hot rolled, completing the hot rolling at between 800° C. and 1000° C. The sheet is cooled, immediately after completion of hot rolling, at a rate of not lower than 10 C / sec., without requiring specific cooling patterns, and coiled at a temperature of not less than 450 C. The cooling temperature is controlled to produce the desired yield strength within the range of from about 500 MPa to about 900 MPa.

The invention discloses a manufacturing method of a HB500 grade low-manganese wear-resistant steel plate. The manufacturing method comprises the specific steps as follows: continuous casting billets meeting the requirements are selected; the rolling process is conducted: the heating temperature is 1100 to 1200 DEG C, the rolling is conducted at a crystallization region and an austenite non-recrystallization region by adopting austenite, the final rolling temperature is 1000 to 1050 DEG C, and the billets are roughly rolled into intermediate billets of 1.7 to 2.0 times the thickness; the finish rolling starting temperature is 850 to 920 DEG C, a laminar cooling manner is adopted, the final cooling temperature is 600 to 700 DEG C, and the cooling rate is 10 to 20 DEG C / S; the quenching process is conducted: the steel plate heating temperature is 860 to 940 DEG C, the heat preservation time is 10 to 30min, and the billets are cooled to a normal temperature at a cooling speed of 40 DEG C / S; and the tempering process is conducted: the quenching steel plate heating temperature is 150 to 300 DEG C, the billets are loaded to a cooling bed to be air-cooled after the heat of the billets is preserved for 1 to 3 hours, and then the HB500 grade low-manganese wear-resistant steel plate is obtained. The HB500 grade low-manganese wear-resistant steel plate has the advantages of high hardness, high strength and high toughness, and is suitable for being used in bulldozers, loaders, excavators, dump trucks and various mining machines.

A temperature control system, which includes a miniature liquid-cooled heat sink, is used to provide a controlled temperature surface to an electronic device, such as a semiconductor device, during the testing or burn-in phase. In one embodiment, the system includes a miniature liquid-cooled heat sink device having a monolithic counter-flowing structure. In other embodiments, the system includes a heater, a flow control valve, a controller, and / or sensors.

The invention relates to a secondary cooling method for reducing transverse cracks of corners of a microalloy sheet billet, which is characterized in that the cooling temperature of a casting blank is facilitated to reach a temperature for starting the transformation from gamma to alpha by controlling the secondary cooling speed at an earlier stage when the casting blank passes through a vertical section after being delivered out of a crystallizer; at the later stage, the cooling water quantity of the casting blank is reduced, potential heat produced by the solidification of the casting piece is used for reheating the casting piece, and the reheating temperature is controlled to make the casting blank reach more than an austenite phase changing temperature when the casting piece is delivered out of the vertical section; the entire process is under the transformation of gamma to alpha to gamma, so that crystal grains of a final transformation product are smaller; and after the casting blank leaves the vertical section, the casting blank enters the subsequent secondary cooling area in a slowly cooling mode. By optimizing the continuous-casting billet cooling mode, the crystal grains are refined, and second-phase particles in the steel are controlled, so that the high-temperature mechanical property of the casting blank can be improved, simpleness in operation is realized, and the transverse cranks on the surface of the casting blank can be effectively reduced.

The present invention provides a three-section cooling process by laminar flow for hot-rolled steel strip. Said process adopts the computer laminar flow cooling control, and is characterized by that the steel strip can be divided into three sections for cooling, first section is head portion section whose length is 30 m, second section is intermediate section of the steel strip, and third section is the tail portion section whose length is 20 m, and the cooling temperatures of said three sections are respectively controlled in that its intermediate section temp. is equal to the objective coiling temp., its head portion section temp. is 20-50 deg.C higher than that of objective coiling section, and its tail portion section temp. is 20-40 deg.C higher than objective coiling temp. Said invention can improve the performance uniformity of steel strip.

A refrigerated liquid dispenser is disclosed. The dispenser has a pump configured for being in fluid communication with a source of a liquid product; a dispensing faucet configured for being in fluid communication with the pump, the dispensing faucet including a cold maintenance device located near the distal end of the dispensing faucet and an insulator device disposed adjacent to the cold maintenance device. The cold maintenance device has a distal end that projects beyond a lower surface of the insulator device. The dispenser also includes a dispensing tower for enclosing the dispensing faucet; and an auxiliary cooling circuit configured to direct cool airflow toward the dispensing faucet, the auxiliary cooling circuit having a passageway that is at least partially located within the dispensing tower and the passageway is configured to deliver cool airflow through the passageway onto the dispensing faucet, to shield the dispensing faucet from ambient temperature, thereby maintaining the dispensing faucet and the passageway at a cool temperature to avoid contamination of the liquid. The dispenser also includes a controller operatively coupled with the pump and the dispensing faucet to control the operation of the refrigerated liquid dispenser.

A temperature control system, which includes a miniature liquid-cooled heat sink, is used to provide a controlled temperature surface to an electronic device, such as a semiconductor device, during the testing or bum-in phase. In one embodiment, the system includes a miniature liquid-cooled heat sink device having a monolithic counter-flowing structure. In other embodiments, the system includes a heater, a flow control valve, a controller, and / or sensors.

The present invention discloses a dynamic secondary cooling control method for slab continuous casting based on a double-cooling mode, which comprises the following steps of: collecting casting process data and indexing target cooling temperatures and ABC parameters of each cooling area; dynamically calculating the heat conduction process of a continuously cast slab in the current period according to a heat conduction equation; calculating the temperature tracking error of each cooling area and calculating the water amount of each cooling area in a second cooling mode by taking the temperature tracking error as a regulation factor; respectively calculating the water amount of each cooling area in a first cooling mode based on the ABC parameters and the current casting speed; determining whether the temperature tracking error exceeds a preset threshold and comparing the water amounts in the two modes to determine the cooling mode and the controlled water amount in the current period; and validating the reasonableness of the controlled water amount, and correcting the controlled water amount to be a preset maximum water amount or minimum water amount if the controlled water amount exceeds the preset maximum water amount or minimum water amount. The invention guarantees the quality stability of the cast blank in secondary cooling process.

The invention relates to steel for ocean engineering and a manufacturing method thereof, in particular to a steel plate with a thickness of 80mm and a low compression ratio for ocean engineering and a manufacturing method thereof. The steel plate comprises the chemical components with the weight percentages as follows: 0.12 to 0.16 percent of C, 0.20 to 0.40 percent of Si, 1.20 to 1.60 percent ofMn, smaller than or equal to 0.010 percent of P, smaller than or equal to 0.003 percent of S, 0.025 to 0.050 percent of Nb, 0.030 to 0.050 percent of V, 0.010 to 0.020 percent of Ti, smaller than or equal to 0.20 percent of Cr, 0.10 to 0.40 percent of Ni, smaller than or equal to 0.20 percent of Cu, smaller than or equal to 0.08 percent of Mo, 0.0250 to 0.050 percent of Al, smaller than or equal to 20ppm of O, smaller than or equal to 40ppm of N, smaller than or equal to 3ppm of H, and the remaining amount of Fe and inevitable impurities. A controlled rolling and cooling technology is adopted, the heating temperature before rolling is 1180 DEG C to 1250 DEG C, the rough rolling temperature is 1000 to 1100 DEG C, and the finish rolling starting temperature is 850 to 880 DEG C; laminar cooling is conducted after the rolling, the final cooling temperature is 640 to 680 DEG C, and the cooling rate is 5 to 15 DEG C / s; and normalizing treatment is conducted, the normalizing temperature is 890 to 910 DEG C, the heating rate is 1.4min / mm, and the heat preservation time is 50 to 90min. The obtained steel has the characteristics of high strength, good Z-direction lamellar tearing resistant performance, high plasticity, and the like.

The invention discloses a polyolefin battery diaphragm and a preparation method for the same. The preparation method is composed of the following steps of: (1) melting polyolefin resin, additive and dissolvent into uniform solution at 150-180 DEG C; (2) extruding the melt, which is obtained from the step (1), through a die head at 150-280 DEG C, and cooling and casting into a thick slice on a cooling roller, wherein the cooling temperature is in a range from -5 to 30 DEG C; (3) longitudinally stretching the thick slice obtained in the step (2), then, transversely stretching for the first time; (4) extracting the diaphragm obtained in the step (3) to remove the dissolvent, then, drying; (5) transversely stretching the diaphragm obtained in the step (4) for the second time, and executing heat shaping after stretching to obtain a polyolefin micro-porous membrane. With the preparation method provided by the invention, holes of the prepared micro-porous membrane are round, and have better ventilation effect; and mechanical strengths of the prepared micro-porous membrane in both longitudinal and transverse directions are uniform and consistent.

The invention provides a high crack-arresting toughness steel plate with yield strength of 500MPa and a production method thereof. The chemical components of steel comprises the following components in percentage by weight: 0.04-0.08% of C, 0.10-0.5% of Si, 0.8-1.6% of Mn, not more than 0.02% of P, not more than 0.01% of S, 0.03-0.065% of Al, not more than 0.005% of N, 0.005-0.05% of Nb, 0.005-0.03% of Ti, 0.0005-0.003% of B, not more than 0.004% of Ca, and the balance of Fe and avoidless impurities. The preparation method comprises the steps of roughing in an austenite re-crystalline region in a first stage, wherein the rolling temperature is 1000-1130 DEG C, the total reduction rate in the re-crystalline region is greater than or equal to 50%; cooling a rolled steel plate quickly to 580-530 DEG C at a rate of 10 DEG C / s; rolling in a non-re-crystalline region in a second stage when the temperature of the surface of the steel plate is 720-770 DEG C, wherein the accumulated deformation is greater than or equal to 50%, the finish rolling temperature is 700-740 DEG C; and water-cooling after rolling, wherein the cooling rate is 5-15 DEG C / s, and the final cooling temperature is 460-560 DEG C. The high crack-arresting toughness steel plate provided by the invention has the characteristics of high strength, high toughness, inhibition of crack formation and expansion and the like, and meets the performance requirements of special part members of large container ships.

The invention provides a method for controlling rapid cooling / heating for an air conditioner, comprising the following steps of: (1) selecting to enter a rapid cooling / heating mode; (2) detecting an indoor temperature, entering the step (3a) when the indoor temperature is higher than a reference temperature value Tref, and entering the step (3b) when the indoor temperature is lower than the reference temperature value Tref; controlling the air conditioner by (3a) to run according to a rapid cooling temperature Tc, a large air volume and a high wind speed; controlling the air conditioning by (3b)to run according to a rapid heating temperature Th, a large air volume and a high wind speed; (4) finishing the rapid cooling / heating mode. The invention can be integrated in a control module of the air conditioner through a mode of software programming, can be operated with one key by a user, prevents man-induced multiple operations in the prior art, and is simple and practical. A relative lower temperature, the large air volume and the high wind speed are adopted during the rapid cooling, while a relative higher temperature, the large air volume and the high wind speed are adopted during the rapid heating, so that the air conditioner can achieve an effect of cooling / heating in a short time.