96results about How to "Eliminate temperature difference" patented technology

Device for the floating accommodation of a wafer. This device comprises two mutually opposite parts which delimit a chamber in which the wafer is placed. By gas being supplied from opposite sides, the wafer is held in a floating position. To prevent the wafer from touching the lateral boundaries, it is proposed to provide a discharge of gas at least partially near the circumference of the chamber wherein the wafer is accommodated. This discharge is realised such that if the wafer moves from the intended position to such a gas discharge, by closing of said gas discharge, the pressure is locally increased such that a force is generated acting in opposite direction to return the wafer in the intended position.

The invention discloses a method for rolling a thin high-strength steel plate of a single-frame steckel mill. The method comprises the following steps: producing the finished product of a high-strength steel plate with a thickness less than 10 millimeters by using a blank with the thickness of 150 millimeters and the length more than 10 meters; and then acquiring the thin high-strength steel plate with qualified property and plate shape by controlling a tapping temperature, a coiler furnace temperature, a reduction in last pass, a roller force, a final rolling speed and a high pressure water de-scaling system. When the rolling method is used for producing the thin steel plate, the thin high-strength steel plate is rolled by utilizing the heat preservation function of front and back mill coiler furnaces and controlling the tapping temperature of the blank, the reduction in the last rolling pass, the roller force and the final rolling speed, and the acquired plate shape and property of the steel plate are both qualified, thereby increasing the rolling mill capacity and achieving high plate yield and high property yield.

A dielectric material includes a composite sintered body in which conductive particles are dispersed in an insulating material, in which a dielectric constant at a frequency of 40 Hz is 10 or higher, and a difference between a maximum dielectric loss value and a minimum dielectric loss value at a frequency of 1 MHz in a surface of the composite sintered body is 0.002 or less.

A floor portion separates a weighing chamber encircled by a windshield case and accommodating a weighing pan, and a balance body accommodating a load detecting section, an incorporated weight, etc. A plurality of vents is provided through the floor portion. A movable floor is arranged to be able to move back and forth on supporting members. A plurality of vents is provided through the movable floor on the rear side of the floor portion so that number and center position of the vents of the movable floor is the same as the vents of the floor portion. When a temperature difference between the temperatures within the weighing chamber and within the balance body is large, the movable floor is moved to permit airflow between the weighing chamber and the balance body.

A gas chromatograph set of the present invention comprises a plurality of gas chromatographs and a flow passage assembly. Each of the gas chromatographs includes a column for separating sample-components, a carrier gas supply unit for supplying a carrier gas to the column and a detector for detecting eluted components from the column. The carrier gas supply unit comprises a carrier gas passage, and a flow controller unit for controlling a flow-rate that is connected to the carrier gas passage. The flow passage assembly comprises a commonly-used metal plate inside which the carrier gas passages of the gas chromatographs are formed.

The invention discloses a lower-half cylinder temperature compensation device of a cylinder, which mainly comprises an electric heating tube, wherein the electric heating tube is fixedly arranged on the outer side of the lower-half cylinder of the cylinder, and a heat insulation layer is arranged outside the electric heating tube. The invention also discloses a temperature compensation method for the lower-half cylinder temperature compensation device of the cylinder adopts the electric heating tube for heating and is characterized in that closed-loop control is performed on the electric heating tube by detecting the temperature of an upper cylinder and a lower cylinder and taking the temperature difference of the upper cylinder and the lower cylinder as a control signal, and the electric heating tube is used for heating the lower-half cylinder of the cylinder so as to reduce the temperature difference of the upper cylinder and the lower cylinder and realize temperature compensation. The lower-half cylinder temperature compensation device of the cylinder and the temperature compensation method thereof can perform comprehensive heating on the lower-half cylinder of the cylinder, and the heating is evener, so the temperature difference phenomena of the upper cylinder and the lower cylinder of the cylinder can be eliminated effectively, various running problems caused by the phenomena in the past are solved, and the safe operation of a steam turbine is ensured.

An ice detector includes an icing assembly that includes a transparent icing rod with an illuminating element is disposed therein and having an ice accretion surface and a support structure. The icing rod has at least one visual sensor configured to obtain an image of the ice accretion surface; a controller electrically connected to the visual sensor and including an image contrast module configured to compare the obtained image with an initial image so as to judge whether ice is formed on the ice accretion surface of the icing rod. The icing assembly includes a refrigerating element respectively connected to the icing rod and the support structure. The refrigerating element may perform active refrigeration for the icing rod, reduce the surface temperature of the icing rod and facilitate the ice detector detecting ice accretion before ice is formed on a wing/nacelle.

An image forming apparatus includes a fixing device that has: a fixing roller heated by induction and a pressing roller brought into press-contact with the fixing roller to fix a toner image borne on a paper sheet conveyed toward the fixing device by a conveyor unit. When a paper sheet having a width smaller than a width of a maximum-width recording medium that can be passed through the fixing device is passed through the fixing device, a non-paper passing region is formed at each end portion of each of the fixing and pressing rollers. Sirocco fans cool the non-paper passing region at a part of an outer peripheral surface of the pressing roller. The pressing roller is disposed opposed to the outer side of the main body of the image forming apparatus.

The invention provides a vehicle power battery preheating device and a control method thereof, and the vehicle power battery preheating device comprises a first power battery pack, a second power battery pack, a direct current bus capacitor, a driving motor, a motor driving inverter, a current sensor and a battery preheating control system, the direct current side of the motor driving inverter isconnected with the direct current bus capacitor, the alternating current output side of the motor driving inverter is connected with a stator winding of the driving motor; the first power battery packand the second power battery pack are connected in series to form a power battery pack; the power battery pack is connected in parallel with the DC bus capacitor; the power battery pack is connectedwith a one-phase stator winding of the driving motor through a heating contactor; at least one temperature sensor is arranged at a temperature sampling point of the power battery pack; and the currentsensor is arranged at the alternating-current output end of the motor-driven inverter. According to the invention, the problems of low heating rate, poor effect, high energy consumption, high cost, large volume and the like of the existing battery heating equipment in a low-temperature environment are solved, and the self energy of the battery can be used for heating.

Provided is a temperature control apparatus of a working machine that is inexpensive, energy-saving and capable of eliminating the temperature difference between a temperature in a room in which the working machine is installed and a temperature of a working area.

Whether an average value T5 is higher or lower than both a target temperature T1 in the working area and an air temperature T2 in the room is checked and, if the result is YES, the routine proceeds to step S8 for driving a cylinder 175 to open a cover 173 and open a opening for working 172. Then, internal air in a working area A is replaced with external air surrounding a numerically controlled lathe 1 and the temperature in the working area approaches the air temperature T2 in the room. If the result is NO, the cylinder 175 is driven to close the cover 173 and close the opening for working 172. Then, replacement of the internal air in the working area A with the external air surrounding the numerically controlled lathe 1 is ended and the operation of the temperature control apparatus is ended.

Disclosed herein is a double heating-type pot. The pot includes air inlet holes at an upper portion thereof to introduce heated air into the pot. Further, a guide unit is provided on an outer surface of the pot to efficiently guide heated air to the air inlet holes. Thus, the present invention allows heat conducted through the bottom of the pot and convection heat transferred through the air inlet holes to eliminate a temperature difference between upper and lower portions in the pot, therefore reducing cooking time and evenly heating food.

The invention relates to the technical field of an air conditioner and discloses an air conditioner unit refrigeration control system, method and device, and an air conditioner unit. The air conditioner unit includes multiple air conditioners. A refrigeration control system of each air conditioner includes multiple fan units with independently adjustable rotating speed, wherein each fan unit comprises several fans; first temperature sensors assigned in multiple arrays and arranged on air return sides of the multiple fan units, wherein an air return side of each fan unit is provided with at least one row of the first temperature sensors; second temperature sensors assigned in the multiple arrays and arranged on air supply sides of the multiple fan units, wherein an air supply side of each fan unit is provided with at least one row of the second temperature sensors, and the first temperature sensors and the second temperature sensors are arranged in one-to-one correspondence on the air return side and the air supply side of each fan unit; and a control device separately in electric connection with multiple first temperature sensors and multiple second temperature sensors, and used for controlling each fan unit to adjust the rotating speed according to air return temperature and air supply temperature of each fan unit.

The invention relates to a device for hydrothermal preparation of powder materials. The device comprises a stirred tank reactor, a circulation system and a microwave heating system. The circulation system comprises a first circulation pipeline, a circulation pump and a second circulation pipeline in sequential connection, and tail ends of the first circulation pipeline and the second circulation pipeline are communicated with the bottom and the upper portion of a kettle body respectively. The stirred tank reactor, the first circulation pipeline or the second circulation pipeline is provided with a discharging port. The microwave heating system comprises a microwave cavity, a microwave generator and a microwave power supply and control system, and the microwave cavity consists of a microwave heating inner tube and a metal cavity. The device is capable of replacing a conventional hydrothermal synthesis kettle for preparation of powder materials such as zeolite, and zeolite crystallization time is shortened while production efficiency is improved.

The invention relates to a phase-change constant-temperature mattress which comprises a surface layer and a constant-temperature mattress layer filled with a microcapsule phase change material. The constant-temperature mattress layer filled with the microcapsule phase change material is formed by injecting the microcapsule phase change material into the mattress layer of the mattress by utilizing the characteristics of constant temperature absorption, capacity of releasing a large amount of energy, small particle size, high heat transfer rate, high stability, high safety and the like in the microcapsule phase change material, so that proper temperature and touch of the mattress can be realized. In addition, the phase-change constant-temperature mattress is high in thermal sensitivity, safe and free of pollution, does not need to be added with energy and is durable to use.

The present invention relates to a resin forming device, a resin forming method, and a resin forming product for lamp fixtures. The resin forming device (10) comprises a first mold (11) used for forming the surface (1a) of a resin forming product (1), and a second mold (12) used for forming the back surface (1b) of the resin forming product (1). A chamber (13) is formed between the first mold (11) and the second mold (12). At a part corresponding to the resin assembly part of the chamber (13), an air-exhaust insert (15) is arranged at the second mold (12). The air-exhaust insert (15) is formed through multiple empiecements (16) configured to abut against one another. A gap (21) is formed between every two adjacent empiecements (16).

The invention relates to the technical field of food processing, and discloses a steam-powered steamed bread machine which comprises a machine body and an upper cover covering the machine body, an outer cylinder, a steamed bread cylinder and a steam generator are arranged inside the machine body, the steamed bread cylinder is arranged inside the outer cylinder, the upper cover is sealed with the top of the outer cylinder, a gap is formed between the inner side wall of the outer cylinder and the outer side wall of the steamed bread cylinder, and the steam generator is arranged on the periphery of the outer cylinder and is connected with the lower portion of the outer cylinder through a steam connecting pipe. The invention further discloses a steamed bread making method based on the steam-powered steamed bread machine. According to the steam-powered steamed bread machine and the steamed bread making method, the steam generator for generating steam and the steamed bread cylinder for containing steamed breads are arranged in different containers, so that the liquid water and the gaseous steam can be separated effectively, the steam enters the steamed bread cylinder through the lower portion of the gap between the outer cylinder and the steamed bread cylinder, the inner area and the outer area of the steamed bread cylinder are filled with the steam, the steam temperature difference in the steamed bread steaming space can be eliminated effectively, and the surface color and luster of the steamed bread are improved; meanwhile, too much condensate water generated in the steamed bread steaming space can be avoided.

A method of controlling heating operation in an air conditioner capable of rapidly supplying heated air according to a desired temperature early in operation is disclosed. The air conditioner includes: a compressor, a first heat exchanger, a second heat exchanger, a refrigerant, a first blowing fan next to the first heat exchanger, a second blowing fan and a wind direction control element; the present invention includes a strong Heating mode and a normal heating mode, the strong heating mode provides heated air by changing the flow rate of refrigerant, air flow, and wind direction according to the operating time. and uniform wind direction of the heated air until the temperature required by the user is reached.