37results about How to "Avoid frost" patented technology

The invention provides an anti-frosting control method, device and equipment of a cooling system and a vehicle, the anti-frosting control method of the cooling system is applied to the vehicle, the cooling system comprises an evaporator and a cooling assembly, and the method comprises the steps that whether the cooling system has a frosting risk or not is detected according to environment parameters of the vehicle and operation parameters of the cooling system; if the cooling system has the frosting risk, demand parameters of a cooling assembly are determined according to the real-time difference value of the actual temperature and the target temperature of the evaporator; and controlling the cooling assembly according to the demand parameters of the cooling assembly. The running state of the cooling assembly can be dynamically adjusted, frosting is effectively restrained, extra bad perception of a user cannot be caused, the balance state can be maintained for a long time, and the NVH performance of the whole vehicle is prevented from being affected by frequent adjustment.

The invention provides a compound evaporator coupled with multiple heat sources, and a heat pump system thereof. The use efficiency of a heat pump and the energy utilization rate are improved while the coupled use of the multiple heat sources is achieved; meanwhile, flue gas waste heat can be recycled, and purification is achieved; and the side of the evaporator is prevented from being frosted effectively. The compound evaporator comprises a shell, and flanges arranged at the two ends of the shell; the shell comprises an outer shell and an inner shell; a spiral refrigerant flow channel is arranged in a clearance between the outer shell and the inner shell; an inside cavity of the inner shell forms a coupled working medium flow channel, and the two ends of the inner shell are provided witha coupled working medium inlet and a coupled working medium outlet separately; the outer side of the outer shell is provided with a plurality of flue gas cooling fins, and a flue gas channel used forheat exchange is formed between the adjacent flue gas cooling fins; and the two ends of the outer shell are separately provided with a refrigerant inlet and a refrigerant outlet which communicate withthe refrigerant flow channel.

The utility model provides an air charging and exchanging device. The air charging and exchanging device comprises a box body shell, a first air path assembly, a second air path assembly and a middle air pipe. A first air inlet of the box body shell is used for communicating with an air source, and a second air inlet is used for communicating with vacuumizing equipment; the first gas outlet and the second gas outlet are used for being connected with low-temperature sample environment equipment; the first gas circuit assembly comprises a ball valve, a first electromagnetic valve, a first pressure gauge, a manual valve, a second electromagnetic valve and a first gas pipe assembly; the second gas path assembly comprises a third electromagnetic valve, a second pressure gauge, a fourth electromagnetic valve and a second gas pipe assembly; one end of the middle air pipe is connected with the first three-head air pipe clamping sleeve, and the other end of the middle air pipe is connected with the second three-head air pipe clamping sleeve. The air charging and exchanging device can effectively prevent air from being mixed when the first air path and / or the second air path conveys air to the sample cavity, so that frosting of low-temperature sample environment equipment is prevented, and the situation that the air charged into the sample cavity cannot reach the target temperature is prevented.

The utility model relates to an intelligent family camera device belongs to camera technical field, including fixed rib plate, the front of fixed rib plate is equipped with camera body, the front of fixed rib plate is equipped with the installation mechanism for conveniently installing camera body, the inner chamber of camera body is equipped with anti -frosting mechanism for preventing frost, the installation mechanism includes connecting seat, rotary rod, worm wheel, worm, two -way screw rod, two rotary straight -toothed gears, two movable plates, two linkage blocks and four clamping blocks, and the connecting seat is hinged and is connected on the front of fixed rib plate through the hinged seat. The intelligent family camera device, the installation mechanism that sets up can be convenient for fixing camera body, and it is convenient for staff to dismantle when maintaining, improves the installation efficiency of camera body, and the stability that improves camera body fixed, realizes the cost competitiveness while maintaining the substantial promotion imaging quality and dark state perception ability.

The invention relates to the technical field of orchard frost prevention equipment, and discloses a self-propelled orchard frost prevention device which comprises a control system, a power supply device, a chassis and a heat source box which are connected with one another. The chassis comprises a Beidou navigation crawler-type driving chassis and a temperature monitoring and early warning device arranged on the Beidou navigation crawler-type driving chassis, and the temperature monitoring and early warning device is electrically connected with the control system; the heat source box is arranged on the chassis and comprises a protective cover, and a heat supply device and a wind power disturbance device which are arranged in the protective cover; the heat supply device comprises a furnace body arranged in a protective cover, a thermal insulation material with the thickness of 3cm is arranged on the protective cover, a diesel combustion engine is arranged in the furnace body, an automatic ignition starting device and a constant-temperature power-off device are arranged on the diesel combustion engine, and the automatic ignition starting device is electrically connected with the control system; and when the set temperature threshold value is reached, the burner stops burning. Hot air pipes are arranged on the side wall of the furnace body. The device provides an efficient, intelligent and accurate anti-frost solution for the orchard.

The application discloses a novel positive pressure type chemical oxygen respirator and relates to the technical field of breathing equipment, which aims to solve the technical problems that the chemical oxygen respirator is difficult to achieve reliable positive pressure protection effect and the mask is easy to fog and frost in the prior art. The novel positive pressure type chemical oxygen respirator comprises a breathing mask, an exhalation pipe, a main machine backpack, an exhalation bag, an inhalation pipe, an oxygen generation tank and a cooling box, the oxygen generation tank and the cooling box are fixed in the main machine backpack, the breathing mask is connected with the exhalation bag, and the exhalation pipe enters the main machine backpack to communicate the exhalation bag with the oxygen generation tank. The novel positive pressure type chemical oxygen respirator can provide positive pressure protection, can defog and self-clean the eyepiece of the breathing mask, and can prevent the vision of a user from being blocked.

The invention relates to a cold and hot integrated heat exchanger and a cold and warm box of an air-cooled compressor. The technical problem that in the prior art, design is not reasonable enough is solved. Comprising a heat exchanger body with a plurality of heat exchange fins on one side, a heat exchange base face is arranged on the side, away from the heat exchange fins, of the heat exchanger body, a pipeline installation groove is formed in the heat exchange base face, a refrigerant pipeline is arranged in the pipeline installation groove, and the two ends of the refrigerant pipeline extend to the outer side of the heat exchanger body respectively. A heating film making contact with the heat exchange base face and / or the refrigerant pipeline is arranged on the outer side of the heat exchanger body. The system has the advantages that a refrigerating system and a heating system are integrated, so that the process installation difficulty and the product cost are reduced; an internal air circulation mode is adopted, the inner wall of the box body can be prevented from frosting during refrigeration, the local temperature of the inner wall of the box body can be prevented from being too high during heating, and the temperature uniformity in the cold and warm box can be effectively improved.

This utility model provides a refrigerator, including: an evaporator, a freezer compartment, a drain pipe, an outer pipe, and an insulation layer. The evaporator is located above the freezer compartment, and the insulation layer is located on one side of the freezer compartment in the horizontal direction. At least a portion of the drain pipe is disposed within the insulation layer. The outer pipe is sleeved on the outer periphery of at least a portion of the drain pipe or disposed on the inner periphery of at least a portion of the drain pipe. Condensate generated by the evaporator can be received in the drain pipe, and refrigerant can be introduced into the outer pipe so that the refrigerant can heat the condensate and prevent the drain pipe from freezing or frosting. This utility model can simultaneously achieve a thinner overall refrigerator size and ensure that the drain pipe does not freeze or frost; effectively solving the problem in existing refrigerators that cannot simultaneously ensure that the evaporator drain pipe does not freeze or frost and achieve a thinner overall refrigerator size.

An aircraft electronic equipment compartment ventilation cooling device for an aircraft electronic equipment compartment ventilation system having a fan, comprising: a cooler for cooling air delivered to the aircraft electronic equipment compartment by the fan; a demister for removing condensed water droplets from the cooled air after passing through the cooler; and a dehumidifier for removing condensed water droplets not removed by the demister from the air after passing through the demister. The moisture absorbing material in the dehumidifier is dried and regenerated by dry outside air when the aircraft is flying at high altitudes and the like where the air humidity is low.

The invention relates to an air conditioner control method and device, air conditioner equipment and a storage medium. The method comprises the steps that the current operation condition is determined based on the outdoor environment temperature and humidity and the evaporator temperature of the air conditioner circulation system; when the current operation working condition is the high-temperature working condition, an energy storage switching module in the air conditioner circulating system is controlled to absorb heat of a refrigerant according to an energy storage supercooling mode for heat storage so as to absorb condensation waste heat generated during system refrigeration, and energy waste is avoided; when the current operation working condition is the low-temperature working condition, the energy storage switching module is controlled to conduct heat release on a refrigerant according to a heat release frost prevention mode so as to increase the temperature of the refrigerant, the temperature of the refrigerant flowing through the evaporator is increased so as to maintain the surface temperature of the evaporator to be higher than the freezing point temperature, and the surface of the evaporator is prevented from frosting; therefore, the problem that an existing air conditioning system cannot intelligently dispatch energy and collaboratively optimize all-working-condition performance is solved.

The utility model relates to the technical field of defrosting of air conditioners, in particular to an air-conditioning system capable of avoiding frosting of an air-cooled heat pump unit under the heating working condition, which comprises an outdoor side component and a user side component, and the outdoor side component comprises an evaporator, a primary condenser and a compressor. The evaporator is communicated with the first-stage condenser and the compressor through the control valve assembly, the user side assembly comprises a second-stage condenser and a heat recovery system, and the heat recovery system comprises a split energy recovery exhaust unit and a circulating pump. Compared with a defrosting mode after frosting of a conventional air-cooled heat pump at present, energy consumption generated by defrosting can be directly saved, and the heating operation energy efficiency of the air-cooled heat pump is greatly improved.

The application provides a multi-source switchable one-machine four-state intelligent air conditioner hot water system and a control method, and relates to the technical field of heat pump air conditioner hot water systems.The system comprises an integrated heat exchange host, a hot water tank, a cold water tank and an intelligent controller component.The integrated heat exchange host integrates core components such as a condensing unit, an evaporating unit, a compressor and a throttling device, and realizes the switching of four working modes, namely air conditioner refrigeration and hot water preparation, air conditioner heating and cold water preparation, cold and hot water preparation and air conditioner independent operation, through the on-off combination of four electromagnetic valves, the start-stop control of a circulating pump and a fan;the intelligent controller automatically controls the states of components according to preset logic based on temperature signals collected by sensors and user instructions, and can also adjust the power of a variable frequency compressor and the opening degree of an electronic expansion valve.The application solves the problems of single heat source and rigid energy utilization of traditional systems, realizes efficient operation in a wide working condition, improves the energy utilization rate and meets the diversified use requirements of users.

The present application relates to the technical field of low-temperature fluid testing, and in particular to a device for testing the motion characteristics of cavitation bubbles separated from a liquid column in a low-temperature state. The device comprises a test tube that is located in a low-temperature environment and can slide along its own axis, with an impact end and a loading end at the two ends of the test tube, respectively. A variable-stiffness impact module and an initial force loading module are arranged at the impact end and the loading end, respectively. The initial force loading module acts on the loading end and pushes the test tube to move axially to collide with the variable-stiffness impact module at the impact end. The initial pushing force of the initial force loading module on the loading end is adjustable, and the support stiffness of the impact part of the variable-stiffness impact module that is collided by the impact end is adjustable. The device can realize decoupling control of the initial velocity and the collision acceleration of the test tube, and provides a key experimental hardware research platform for the optimization design of fluid systems in low-temperature fluid engineering.

The utility model provides a refrigerator which comprises a refrigerator body, a drawer door body and an angle adjusting unit. A linear guide rail part extending in the horizontal direction is formed in the box body; the drawer door body comprises a drawer door body and a guide rail support unit. The first end of the guide rail support unit is connected with the drawer door body, an angle adjusting positioning face extending in the vertical direction is formed at the first end of the guide rail support unit, and the second end of the guide rail support unit can reciprocate along the linear guide rail component. And the angle adjusting unit is used for adjusting the relative angle of the angle adjusting positioning surface relative to the inner side surface of the drawer door body, so that the drawer door body is flush with the surface of the box body. Therefore, the product installation consistency is improved, external hot air enters the refrigerator from the gap, the problems of condensation and frosting at the gap position are caused, frosting of the freezing evaporator caused by serious outward turning of the door body is avoided, slow refrigeration and low refrigeration efficiency of the refrigerator are avoided, and the product quality risk is reduced.

The application discloses a device for realizing micro-ice crystal freezing and melting, which comprises a micro-ice crystal suspension freezing device and an ice crystal melting device; the micro-ice crystal suspension freezing device is used for generating micro-ice crystal particles which are suspended in the air and do not directly contact with a wall surface; the ice crystal melting device is used for controlling temperature and gradually melting the ice crystals under certain conditions; the micro-ice crystal suspension freezing device comprises a water chiller, an ice crystal suspension freezing assembly, a temperature controller, a temperature sensor and a direct-current adjustable power supply. The device for realizing micro-ice crystal freezing and melting can generate ice crystals with different particle sizes and is provided with a melting device, thereby laying a foundation for measuring the temperature and the melting rate in the freezing generation and the melting process of the ice crystals with different particle sizes.

The application discloses a control method and device for reducing frost formation on a front windshield of a real vehicle and a storage medium, and belongs to the technical field of vehicles. Step S1 is to determine whether a corresponding operation mode of the vehicle is started, if yes, step S3 is executed, and if not, step S2 is executed. Step S2 is to stop the operation of the vehicle, and when the temperature outside the vehicle is lower than a predetermined temperature, a front windshield anti-frost function is started, and whether a corresponding process is executed is determined according to the type of the vehicle, if yes, the corresponding process is executed, and if not, the execution of the corresponding process is stopped. Step S3 is to determine whether the corresponding operation mode of the vehicle is executed, if not, step S2 is executed, and if yes, after the execution of the corresponding operation mode is completed, whether all parameters of the vehicle meet the standard for stopping the operation of the vehicle is determined, if yes, step S4 is executed, and if not, the operation is ended. Step S4 is to start the front windshield anti-frost function, and a corresponding process is executed according to the type of the vehicle.

The application discloses a C-section current lead-to-power copper bar anti-frosting and anti-condensation system, which comprises a total air inlet pipe, one end of the total air inlet pipe is connected with an external air heating device, the other end of the total air inlet pipe is communicated with an air pipe shunt, a plurality of branch air pipes are communicated with the air pipe shunt, and the ends, away from the air pipe shunt, of the branch air pipes are communicated to all parts of the surrounding space and are used for anti-frosting and anti-condensation in the surrounding space. The application is suitable for the anti-frosting technical field of the power copper bar, can form a negative pressure in a relatively closed space, prevent natural air from contacting the C-section current lead and the power copper bar, introduce dry heated air to reduce the dew point, effectively realize low-cost and high-efficiency anti-frosting and anti-condensation of the C-section current lead and the power copper bar in a narrow space, has low investment cost and simple structure, and is very convenient to install, detect and maintain.

This invention provides a heat exchange structure, an air conditioner, and a defrosting control method for the outdoor unit of an air conditioner. The heat exchange structure includes: a heat exchange pipe comprising a first pipe, a second pipe, and a third pipe connected in series, wherein the second pipe is located between the first pipe and the third pipe, the inner diameter of the second pipe is smaller than that of the first pipe, and the inner diameter of the second pipe is smaller than that of the third pipe; an air inlet is formed on the side of the first pipe away from the second pipe, and an air outlet is formed on the side of the third pipe away from the second pipe; a heat exchanger disposed in the second pipe; and a fan disposed on the side of the heat exchange pipe near the air inlet and the side of the heat exchange pipe near the air outlet. This invention solves the problems of increased costs due to the need to increase raw materials when improving the heat exchange capacity of the outdoor unit heat exchanger, and the inability of the indoor unit to continue heating during defrosting of the outdoor unit heat exchanger.

The utility model provides a vehicle air conditioning system, include: a vehicle compressor, a bypass valve is connected between high pressure side and low pressure side of vehicle compressor, a condenser, the first end intercommunication high pressure side of vehicle compressor of condenser, an expansion valve, the first end of expansion valve is connected the second end of condenser, an air conditioner evaporimeter, the first end of air conditioner evaporimeter is connected the second end of expansion valve, and the second end of air conditioner evaporimeter is connected the low pressure side of vehicle compressor, a first temperature sensor is set up in the exhaust end of vehicle compressor, and the control end of expansion valve is connected to first temperature sensor, and a second temperature sensor is set up in the evaporimeter core body of air conditioner evaporimeter, and the control end of bypass valve is connected to second temperature sensor, the utility model discloses can effectively prevent the spring and autumn season vehicle air conditioning evaporimeter frost, avoid the frequent start -stop of compressor, improve stability, the oil return lubrication and cooling effect of compressor.

The defrosting device of the air source heat pump comprises an outer shell and a compressor, an evaporator is fixedly installed in the outer shell, a dehumidifier is arranged on one side of the outer shell, an exhaust pipe is fixedly connected to the other side of the outer shell, an exhaust fan is fixedly connected to the upper end of the outer shell, and the exhaust fan is fixedly connected to the lower end of the outer shell. The input end of the exhaust fan is fixedly connected with one end of an exhaust pipe, a temperature and humidity sensor is fixedly connected to the inner wall of the outer shell, a front cover is fixedly connected to the front end of the outer shell, a wireless module and a controller are fixedly connected to the outer wall of the front cover, and the output end of the dehumidifier is fixedly connected with an air inlet pipe through a flange. And the other end of the air inlet pipe communicates with the interior of the outer shell, and the compressor is fixedly connected to the outer side of the outer shell. The technical problems that according to an existing defrosting device, defrosting operation is mainly conducted after a coil pipe is frosted, hysteresis exists, and the treatment effect is common are solved.

The application discloses a kind of cryogenic liquid flow standard measuring device and measurement method, comprising: by test pipeline sequentially connected liquid nitrogen storage tank, delivery pump, subcooler, first control valve, flow indicator, second control valve, the flowmeter to be detected, the flowmeter to be detected is connected variable pipeline, subcooler is configured to maintain liquid nitrogen supercooling state;First weighing unit, including first weighing tank and first weighing balance, the liquid nitrogen inlet of first weighing tank is equipped with fourth regulating valve;First loop pipeline is connected between delivery pump and subcooler and is connected with liquid nitrogen storage tank, first loop pipeline is equipped with first regulating valve;Second loop pipeline, one end is connected with liquid nitrogen storage tank, and variable pipeline is configured to selectively connect with the other end of second loop pipeline or first weighing tank;Drying unit is connected with first weighing unit, for making first weighing tank in dry environment.The application realizes the high accuracy measurement of the measurement performance of cryogenic liquid flow meter.

This utility model discloses an anti-frost cold storage door, relating to the field of cold storage door technology, aiming to solve the problem of frost buildup on cold storage doors. The key technical points are: it includes a door frame and a door panel rotatably connected to each other; a wiper and a conveyor belt are slidably mounted on the door panel; grooves for the wiper to grip are formed on both sides of the conveyor belt; a cavity is formed inside the door panel; multiple drive wheels are rotatably mounted on the door panel to abut against the conveyor belt; and a drive component for driving the drive wheels is provided in the cavity area; the door frame has drainage holes. In this anti-frost cold storage door, when the cold storage is in operation, the door is powered on to activate the drive component, which in turn drives the wiper via the drive wheels and conveyor belt, ensuring that all four sides of the door panel facing the door frame are cleaned, minimizing water droplet formation and thus preventing frost buildup.

The invention relates to the technical field of heat pump air conditioners, in particular to a heat pump low-temperature heating anti-frosting method and a control system.The method comprises the steps that the environment temperature of a heat pump system is detected; according to the range of the environment temperature, a corresponding control mode is selected, and the control mode comprises an extremely cold mode with the exhaust temperature of a compressor as a main control parameter; in the conventional mode, fin pressure drop of the heat exchanger is used as a main control parameter; in the high-humidity mode, the dryness of a refrigerant in front of an expansion valve is used as a main control parameter; calculating an opening control value of a main valve and a rotating speed control value of a fan; and adjusting the opening of a main valve according to the opening control value, and adjusting the rotating speed of a fan according to the rotating speed control value, so that the coil temperature is higher than the current environment dew point temperature. According to the invention, active anti-frosting control under all working conditions from extremely cold to low temperature and high humidity can be realized, periodic great attenuation of heating capacity caused by thickening of a frost layer is avoided, and stability of the heating capacity and efficient operation of the system are ensured.

The present invention discloses a hydraulically driven low-temperature reciprocating pump capable of reducing the influence of low temperature on the piston rod seal, comprising a cylinder body, a pump body and a piston rod, characterized in that: a low-temperature medium storage tank is provided inside the pump body, and an end cover fixedly connected to the pump body is provided at the opening of the pump body; the cylinder body is arranged above the pump body, one end of the piston rod passes through the end cover and extends into the cylinder body cavity, and reciprocates in the cylinder body cavity; a rubber sealing ring for oil sealing is provided on the piston rod; and a heat-insulating and radiation-proof protective sleeve is provided between the cylinder body and the end cover. The present invention has many advantages such as ensuring the sealing life of the rubber sealing ring, preventing frost at the pump body opening, and reducing the friction between the piston cylinder and the cavity.

The invention discloses a heat pump air conditioning system which comprises a compressor and a heat pump, the four-way reversing valve is connected with the compressor and is configured to change the flow direction of a refrigerant; the indoor heat exchanger is connected with the four-way reversing valve; the outdoor heat exchanger is connected with the four-way reversing valve; the refrigerant storer is configured to store a refrigerant flowing through the refrigerant storer; the first pipeline is configured to connect the outdoor heat exchanger and the indoor heat exchanger; the branch pipeline is configured to be connected with the refrigerant storage and the first pipeline to form a refrigerant flow path; the adjustable on-off device is arranged on the first pipeline, and the adjustable on-off device is configured to adjust the flow of the refrigerant flowing through the refrigerant storage so as to adjust the refrigerant circulation amount in the air conditioning system. According to the air conditioning system, dynamic adjustment of the refrigerant circulation amount can be achieved, so that the requirements of the air conditioning system for the refrigerant amount under different working conditions are met.

The invention provides a refrigeration system and a refrigeration adjusting method, and the system comprises a first function part which provides a refrigeration function; the second functional part is matched with the first functional part to provide a frosting inhibiting function; the first function part comprises a compressor, a condensation assembly, a throttling valve and an evaporation assembly which are sequentially connected, the condensation assembly comprises a condenser, and the evaporation assembly comprises an evaporator; the second function part comprises an on-off control valve and a pressure regulating valve, an inlet of the on-off control valve is connected between an outlet of the compressor and an inlet of the condenser, an outlet of the on-off control valve is connected with an inlet of the pressure regulating valve, and an outlet of the pressure regulating valve is connected between an outlet of the throttling valve and an inlet of the evaporator; and when the evaporator has the frosting restraining requirement, the on-off control valve is controlled to be opened, and the opening degree of the pressure adjusting valve is adjusted so that the evaporation pressure of an outlet of the evaporator can be adjusted to the first preset pressure. By additionally arranging the bypass pipeline and the bypass valve controlled by pressure, the evaporation pressure of the refrigerating system is adjusted, and frosting can be stably restrained.

The utility model relates to the technical field of refrigeration, in particular to an evaporative refrigeration device and ice making equipment. The evaporation refrigeration device comprises an evaporation pipe, a connector, a first pipeline and a second pipeline. The evaporation pipe is provided with an input end pipe opening, and the connector is connected to the input end pipe opening. A first channel and a second channel are arranged in the connector at intervals, one end of the first channel is communicated with the input end pipe opening, and the other end of the first channel is communicated with the outside. One end of the second channel is communicated with the input end pipe orifice, and the other end is communicated with the outside. The first pipeline penetrates through the first channel, one end of the first pipeline communicates with the evaporation pipe through the input end pipe opening, and the other end of the first pipeline is used for being connected with a condenser so as to transmit refrigerants. The second pipeline penetrates through the second channel, one end of the second pipeline is connected with the evaporation pipe through the input end pipe opening, and the other end of the second pipeline is used for being connected with the compressor to transmit the heating medium. By arranging the evaporation refrigeration device, pipeline connection can be facilitated, and the refrigeration effect can be improved.

This utility model relates to the field of refrigerators, and in particular to a refrigerator drain pipe structure and a refrigerator thereof. The refrigerator drain pipe structure includes a drain pipe and a drip tray, with the drip tray located below the drain pipe. The drain pipe includes an expanding section and a contracting section connected together, with the inner diameter of the contracting section being smaller than that of the expanding section. A sealing element is provided inside the drain pipe, with the outer diameter of the sealing element not less than the inner diameter of the contracting section. The sealing element has a first position capable of abutting against the inner wall of the contracting section, and is configured to move away from the first position in response to external force. Its advantages are that the sealing element can abut against the inner wall of the contracting section to block the drain pipe, preventing external humid and hot air from entering the refrigerator, avoiding the problem of evaporator frost formation, and reducing the refrigerator's energy consumption. When condensate flows into the drain pipe, the gravity of the condensate exerts pressure on the sealing element, causing it to move away from the first position in response to the pressure, thereby opening the drain pipe and allowing the condensate to flow smoothly.

The utility model discloses a high and low temperature circulation bias insulation roll-to-roll film coating cold roller structure which comprises a cold roller, the outer surface of the cold roller is a ceramic layer, six circulating water channels are designed on the inner side of the ceramic layer and are spirally distributed at equal intervals, two concentric hollow water channels are designed in a main shaft in the middle of the cold roller, and the hollow water channels are communicated with the ceramic layer. The power input ends of the cold rollers extend out of the vacuum cavity, high-rotating-speed vacuum sealing is achieved through magnetofluid, the power input ends of the cold rollers are provided with synchronous wheels and connected with synchronous wheels on servo motors through synchronous belts, the servo motors are installed on motor bases, and the synchronous wheels are connected with the synchronous wheels through synchronous belts. The tail of the power input end of the cold roller is connected with a water inlet and outlet pipe rotating joint which is communicated with the main water inlet channel and the main water return channel. The water inlet and outlet pipe rotating joint is externally connected with negative potential or positive potential of a bias device. Constant-temperature film forming control of the flexible base material is achieved, one-time forming of most processes is achieved, the film layer quality is guaranteed, and meanwhile high-yield mass production is stable.

The invention discloses a multichannel intermediate infrared detector wide temperature range responsivity calibration device and method, and solves the problems that the responsivity changes along with the temperature in the existing intermediate infrared detector responsivity calibration, the responsivity consistency of different intermediate infrared detectors is poor, and the calibration efficiency of a large batch of intermediate infrared detectors is not high. According to the invention, the plurality of intermediate infrared detectors to be calibrated are arranged in the vacuum cavity, and the temperature control unit is arranged in the vacuum cavity, so that the temperature of the intermediate infrared detectors to be calibrated can be accurately controlled in a stable range, the problems that the temperature of the intermediate infrared detectors is sensitive and the response rate drifts along with the temperature are solved, and the accuracy of response rate calibration is ensured.