19results about How to "Avoid temperature changes" patented technology

The utility model relates to an impact test device. The impact test device includes: a support member; the impact part is arranged on one side of the supporting part and is rotationally connected with the supporting part; the base is used for supporting a to-be-tested sample, and the base is arranged on the same side as the impact part and located below the impact part, so that the to-be-tested sample is located on the rotating path of the impact part; and the temperature control module comprises a semiconductor chilling plate and is used for adjusting the temperature of the base through the semiconductor chilling plate. Through the impact test device, the pretreatment step of the to-be-tested sample is reduced, a plurality of devices such as a drying oven are omitted, meanwhile, the use of a cooling agent is reduced, energy conservation and environmental protection can be achieved, and the cost is reduced. Meanwhile, the temperature of the sample to be tested is controlled on the base, so that the temperature change caused by transferring the sample is avoided, and the obtained impact test result is more accurate.

The invention relates to the technical field of high-frequency preheating, and discloses a high-frequency preheating device for coating a multi-strand stranded enameled wire core, which comprises a main machine body, a preheating mechanism is arranged outside the main machine body, a mounting chamber is formed in the back surface of the main machine body, and a heat dissipation mechanism and an air guide mechanism are arranged inside the mounting chamber; the heat dissipation mechanism is used for conducting heat dissipation on the interior of the mounting chamber, the air guide mechanism is used for controlling the air outflow direction in the mounting chamber and controlling the air outlet to be switched between external air and the interior of the preheating mechanism, and a temperature sensor is fixedly connected to the interior of the mounting chamber; the preheating mechanism is used for preheating the metal wire core; by controlling the adjusting plate, the adjusting plate can conveniently and selectively seal the inner air cavity or the outer air cavity to adjust the air in the mounting chamber to flow out through the air outlet or flow out through the wire outlet through the outer thermal insulation box, so that different effects are achieved, the use flexibility of the device is effectively improved, and the use diversity of the device is effectively guaranteed.

A power control device controls temperature of an apparatus having a cooling mechanism and a heat generating component. The power control device includes a nonvolatile storage unit that stores information indicating unique characteristics including thermal resistance and thermal capacity of the apparatus for each current of the heat generating component, a current measurement unit configured to measure a current flowing through the heat generating component, a temperature measurement unit configured to measure a current temperature of the heat generating component, and a control unit configured to perform cooling control on the apparatus. The control unit estimates a temperature rise value after a certain delay time based on the current, the temperature, and the information on the unique characteristics, and performs the cooling control on the apparatus based on the estimated temperature after the delay time.

The utility model provides a turnover type hot rolling mill, which relates to the technical field of hot rolling mills and comprises a hot rolling mill main body, the longitudinal partition plate is fixedly assembled in the hot rolling mill main body and used for isolating hot rolling parts of the hot rolling mill main body; the strip-shaped through hole is transversely formed in the longitudinal partition plate; the first overturning preheating mechanism, the second overturning preheating mechanism and the third overturning preheating mechanism are fixedly assembled in the hot rolling mill body from near to far away from the longitudinal partition plate. According to the device, passing non-woven fabrics are sequentially preheated through the third overturning preheating mechanism, the second overturning preheating mechanism and the first overturning preheating mechanism, the heights of the first overturning preheating mechanism, the second overturning preheating mechanism and the third overturning preheating mechanism are sequentially reduced after overturning, and then the preheating temperatures of the first overturning preheating mechanism, the second overturning preheating mechanism and the third overturning preheating mechanism are sequentially reduced; the preheating temperature is stably increased, and the non-woven fabric is prevented from generating large temperature change in a short time.

A laser punching device for cigarette tipping paper includes a frame, a punching device, and a lifting and temperature control mechanism. The frame is symmetrically arranged, and a conveying roller assembly is symmetrically arranged between the two sides of the frame. The punching device is fixedly connected to the frame and is located between two groups of conveying roller assemblies. The conveying roller assembly is used to convey the tipping paper. The lifting and temperature control mechanism is fixedly connected to the frame and is located below the punching device. The present invention can be adjusted according to the actual needs of the tipping paper punching process through a liftable receiving mechanism, provide support during punching, and can be flexibly lifted and lowered after the punching is completed, thereby avoiding the problem of traditional lining plates continuously generating friction during the movement of the tipping paper. The introduction of the preheating component and the cooling component of the present invention effectively reduces the thermal stress of the material caused by the temperature difference, reduces the damage of the tipping paper during the laser punching process, reduces the quality problems such as irregular hole edges, changes in hole size and shape, and cracking, and improves the smoothness of the production process.

The invention discloses a high-temperature and high-pressure gas-containing turbine experimental device, comprising a dynamometer connected to a hydraulic turbine, a liquid storage tank, a liquid supply tank with an electric heating tube, a pressure-stabilizing tank, a gas storage tank, a hot water heat pump unit with a tube bundle heat exchanger, an expansion tube made of a magnetophilic metal, and an electromagnetic mixing device, wherein the pressure-stabilizing tank is placed on a vertically adjustable lift; the electromagnetic mixing device is composed of a magnetic wheel and a magnetic component matched with the magnetic wheel, and the magnetic component is externally connected to a power supply; the magnetic wheel is placed in the inner cavity of the expansion tube, and the magnetic component is sheathed on the periphery of the expansion tube. The device can be used to study the flow of gas-containing hydraulic turbines under high temperature and high pressure and the working mechanism of gas-containing hydraulic turbines.

The invention is applicable to the technical field of automobile carpet processing equipment, and aims to provide an efficient heating oven for automobile carpet fabric and a control method thereof, the efficient heating oven is characterized in that a heating box is arranged in the efficient heating oven, a plurality of heat insulation layers are arranged in the heating box, heating forming of multiple pieces of fabric can be achieved at the same time, and the efficient heating oven is simple in structure and convenient to use. A heating plate is arranged in the heat insulation layer, the fabric is placed on the heating plate and is heated, and meanwhile, in the heating process, the fan and the louver are matched to form irregular turbulent flow to the interior of the heating box body, so that hot airflow, close to the heating plate area, in the heating box body is blown to other positions in the heating box body; and the temperature in the heating box body is kept basically consistent, meanwhile, the temperature rising speed in the heating box body is increased, and the overall using effect is good.

The utility model discloses a fuel oiling machine calibrating device, and belongs to the technical field of oiling machine calibrating equipment. The fuel oil temperature adjusting device overcomes the defects that in the prior art, a fuel oil temperature adjusting device in a fuel oil dispenser calibrating device is complex in structure and high in cost. The device mainly comprises an inner tank and an outer tank, the inner tank is arranged in the outer tank, the outer tank comprises an outer shell and an inner shell, an outer heat preservation cavity is formed between the outer shell and the inner shell, a heat preservation body is installed in the outer heat preservation cavity, an inner heat preservation cavity is formed between the inner shell and the inner tank, and a first oil injection pipe communicated with the inner heat preservation cavity is installed at the top of the outer tank. A first oil discharging pipe communicated with the inner heat preservation cavity is installed at the bottom of the outer tank, a first valve is installed on the first oil discharging pipe, a verification cavity for containing fuel oil is formed in the inner tank, a liquid level pipe and a second oil filling pipe which extend upwards out of the outer tank are installed at the top of the inner tank, and a second oil discharging pipe which extends downwards out of the outer tank is installed at the bottom of the inner tank. A second valve is mounted on the second oil discharging pipe.

The present invention provides a multi-space optical camera based on a large-size, lightweight sunshade, which is used to solve the technical problems of the existing space cameras based on an integrated cylindrical sunshade, such as the long cylinder length that even exceeds the envelope of the satellite, or the need to set a surface coating with an ultra-high absorption ratio, or the technical problems of the space camera based on James Weber's telescopic light shield having certain limitations in use in a more complex orbital environment. The multi-space optical camera based on a large-size, lightweight sunshade of the present invention adopts the form of a solar sunshade plus a ground-air sunshade, which effectively reduces the absorption rate of the camera surface; at the same time, compared with the traditional cylindrical sunshade, the solar sunshade of the present invention has only one surface, which not only greatly reduces the weight and volume, but also through the specific structure of the driving mechanism and the transmission mechanism in the transmission shaft system, the small-size driving mechanism drives the large-size solar sunshade to rotate 360 ​​degrees, thereby realizing multi-angle stray light suppression.

A cigarette tipping paper laser punching device comprises racks, punching devices and a lifting temperature control mechanism, the racks are symmetrically arranged, conveying roller assemblies are symmetrically arranged between the two sides of the racks, the punching devices are fixedly connected with the racks and located between the two conveying roller assemblies, the conveying roller assemblies are used for conveying tipping paper, the lifting temperature control mechanism is fixedly connected with the racks, and the lifting temperature control mechanism is fixedly connected with the racks. And the punching device is arranged below the punching device. By means of the lifting bearing mechanism, adjustment can be conducted according to actual requirements in the tipping paper punching process, supporting is provided during punching, flexible lifting can be achieved after punching is completed, and the problem that a traditional lining plate continuously generates friction force in the tipping paper moving process is solved. Due to introduction of the preheating assembly and the cooling assembly, thermal stress caused by temperature difference of materials is effectively reduced, damage to tipping paper in the laser drilling process is reduced, the quality problems of irregular hole edges, hole size and shape changes, cracking and the like are solved, and the smoothness of the production process is improved.

The invention discloses a radiotherapy fixed bed, which relates to the technical field of radiotherapy beds, comprises a supporting plate, and is characterized in that a first electric telescopic rod is fixedly mounted on the outer surface of the right side of the supporting plate, and a first electric telescopic column is fixedly mounted on the outer surface of the upper end of the first electric telescopic rod; a connecting plate is fixedly connected to the outer surface of the upper end of the first electric telescopic column, a fixing frame is movably connected to the outer surface of the upper end of the connecting plate, and a first fixing plate is fixedly connected to the outer surface of the rear end of the fixing frame, so that the situation that a patient may feel uncomfortable and overheated or overcooled due to the fact that radiotherapy needs to be performed for too long time and temperature changes is avoided; the problem that treatment on a patient may be affected due to the fact that the patient lies on the fixed bed for a long time after the fixed bed is used is solved, a little dust may be generated, the dust on the fixed bed can be conveniently and directly cleaned, the situation that workers need to clean the fixed bed for multiple times, time is wasted is avoided, and the working efficiency is improved.

A time-of-flight mass spectrometry device includes: an ion introduction unit; a vacuum chamber connected to the ion introduction unit; a support member provided inside the vacuum chamber; a flight tube having a part of the outer surface supported by the support member and provided inside the vacuum chamber; a temperature sensor provided in the vicinity of a connection portion with the support member of the vacuum chamber; a temperature adjustment element provided in the vicinity of the connection portion; and a temperature control unit that controls the temperature adjustment element based on a measurement result of the temperature sensor.

This utility model discloses a high-temperature sterilization system for an enzyme production line, including a high-temperature instantaneous sterilizer. A stepper motor is fixedly installed on one side of the bottom end of the high-temperature instantaneous sterilizer. The output shaft of the stepper motor is connected to a lifting threaded rod via a coupling. The upper end face of the lifting threaded rod is connected to a top plate via a roller bearing. A guide rod is fixedly installed on both sides of the lower end face of the top plate. A lifting sleeve is fitted on the upper side of the outer surface of the two guide rods. This utility model allows for the cyclic use of two heating inner tanks. When one heating inner tank has just experienced a relatively drastic temperature change inside the high-temperature instantaneous sterilizer, the other heating inner tank can be automatically installed inside the high-temperature instantaneous sterilizer for use. This technical solution can prevent a single heating inner tank from experiencing multiple temperature changes in a short period of time, thereby improving the service life of the heating inner tank.

The present invention belongs to the technical field of hybrid integrated circuit clamping, and specifically discloses a hybrid integrated circuit automatic bonding compatible clamp and a method of use. It comprises a base, the bottom of the base is provided with a device nesting structure, the top of the base is provided with a placement cavity, the bottom of at least one inner side wall of the placement cavity is provided with a placement step, the bottom of the placement cavity is provided with a heating module, and the symmetrical direction of the placement step is provided with a movable clamping module. The present invention arranges a heating module at the bottom of the placement cavity to replace the heating base of the bonding device, and at the same time adapts to the shell sizes of products of different sizes by moving the clamping module, thereby avoiding the constant replacement of the clamp model, improving the production efficiency, and reducing the production cost.

This invention discloses a method and system for estimating the temperature of a permanent magnet synchronous motor (PMSM) based on offline data. The method includes: constructing a temperature-considered voltage model of the PMSM; acquiring multiple sets of offline data and obtaining the sum and difference of the products of the dq-axis voltage and current under the offline data through calculation and relationship fitting; and combining the difference between the sum and difference of the products of the dq-axis voltage and current under the offline and online data with the temperature-considered PMSM voltage model to calculate the estimated winding temperature and flux linkage temperature. The system includes: a model construction module, an offline data acquisition module, an offline data calculation module, a relationship fitting module, an online data acquisition module, and a temperature estimation module. Using this invention simplifies implementation and storage, ensures that the temperature remains constant during data acquisition, and improves the accuracy of temperature estimation. This invention, as a temperature estimation method and system for PMSMs based on offline data, can be widely applied in the field of PMSM technology.

The invention discloses a frost and fog suppression device and method for an isolation light window in a temperature difference environment, and relates to the technical field of optical adjustment. The suppression device comprises a connecting cylinder, the two ends of the connecting cylinder are open, a gas inlet nozzle is arranged in the connecting cylinder, and the gas inlet nozzle is used for being connected with a gas input system; the observation lens is arranged at one end of the connecting cylinder body; the diaphragm assembly is installed at the other end of the connecting cylinder body, and the diaphragm assembly can control the size of an opening of the connecting cylinder body; wherein in the working state, one end, provided with the observation lens, of the connecting cylinder is sealed and fixedly connected with a flange of an environmental test box, and in the state that the diaphragm assembly is closed, damping can be applied to gas output from the interior of the connecting cylinder, so that frost dew is effectively inhibited, and meanwhile, the stability of the observation lens is improved. The change of the internal temperature of the environment test box is avoided; and the observation effectiveness is ensured. The suppression method is based on the suppression device.

The invention provides a hydrogen storage container which comprises a first barrel assembly, a second barrel assembly and a hydrogen storage device. A vacuum cavity is formed in the second barrel assembly, the first barrel assembly is arranged in the vacuum cavity, and a gap is formed between the second barrel assembly and the first barrel assembly; one end of the first connecting assembly is hinged to the first barrel assembly, and the other end of the first connecting assembly is hinged to the second barrel assembly; one end of the second connecting assembly is hinged to the first barrel assembly, and the other end of the second connecting assembly is slidably hinged to the second barrel assembly; the first connecting assembly and the second connecting assembly are arranged at intervals in the axial direction of the first barrel assembly. The hydrogen storage container has a good heat insulation effect and relatively high structural stability, and is beneficial to reducing the occurrence probability of leakage accidents and improving the safety of hydrogen storage and transportation.

The utility model relates to the technical field of heat preservation storage, and discloses a tetrahydrofuran heat preservation storage tank which comprises a supporting frame, the top side of the supporting frame is fixedly connected with a storage tank body, the top side of the storage tank body is fixedly connected with a sleeve plate, the top side of the sleeve plate is fixedly connected with a circular ring, and the middle of the top side of the storage tank body is fixedly connected with a connecting column. An air inlet column is fixedly connected to the left end of the connecting column, a rotating assembly is arranged on the inner wall of the left end of the air inlet column, a holding rod is fixedly connected to the left side of the rotating assembly, a connecting column is fixedly connected to the right side of the rotating assembly, and a reset assembly is arranged at the right end of the connecting column. According to the device, the device can be sealed during storage, the situation that gas is embedded into the device to cause volatilization of tetrahydrofuran is prevented, the sealing effect can be achieved when tetrahydrofuran is injected into the device, and the situation that tetrahydrofuran is mixed with air to be volatilized is further avoided.

The utility model relates to an environment-friendly paper cup processing workshop air ventilation and purification mechanism which comprises a main body, an air purification mechanism is arranged in the main body, an auxiliary assembly is arranged in the main body, and the air purification mechanism comprises an indoor air channel and an external air channel which are arranged in the main body. An indoor air inlet pipe is fixedly connected to the left side of the main body, a first filter plate is arranged in an indoor air channel, a ceramic catalysis block is fixedly connected to the interior of the indoor air channel, an external air inlet pipe is fixedly connected to the right side of the main body, and a second filter plate is arranged in the external air channel; an atomization sterilization assembly is arranged at the bottom of the main body, and a negative ion generator is fixedly connected to the interior of the external air channel. According to the air ventilation and purification mechanism for the environment-friendly paper cup processing workshop, through the arranged air purification mechanism, ventilation and air purification of the workshop can be achieved, the workshop can be kept sterile and dustless, and the environment quality is improved.