43results about How to "High or low temperature" patented technology

The invention discloses a method for cooling a container energy storage system through underground water and a temperature adjusting system thereof. According to the method, an internal circulation cooling mode is adopted, specifically, underground water of a constant-temperature water layer is pumped and then fed into a hot water reservoir through a plurality of fan coils, and meanwhile the temperature adjusting system pumps air in a battery cabin; the extracted air in the cabin respectively flows through each fan coil through internal circulation air ducts to exchange heat with the underground water, and the air in the cabin is blown into the battery cabin to realize cooling; when the temperature in the battery cabin is still continuously higher than the high-temperature threshold value in the internal circulation cooling mode, the temperature adjusting system is switched into an external circulation cooling mode, the internal circulation air ducts are switched into external circulation air ducts communicated with the outside, and the external circulation air ducts suck external air, and the external air flows through each fan coil and then is blown into the battery cabin to realize cooling. Under the condition that direct refrigeration or heating is avoided in a low-temperature environment, the temperature of the energy storage system in different working states is adjusted.

The invention provides a rear end water mixing type gas water heater and a control method thereof. The rear end water mixing type gas water heater comprises a controller, a water inlet pipe, a water flow sensor, a heat exchanger, a hot water inlet pipe, an outlet water temperature sensor and a water outlet pipe, and further comprises a direct connection pipe, a direct connection temperature sensor, a bypass device and a water server; the water inlet pipe is provided with the water flow sensor, the direct connection temperature sensor is arranged in the hot water inlet pipe or direct connection pipe, the water outlet pipe is provided with the outlet water temperature sensor, a water outlet of the hot water inlet pipe is connected with a water inlet of the direct connection pipe and a water inlet of the bypass device, a water outlet of the direct connection pipe and a water outlet of the bypass device are both connected with the water outlet pipe, and the bypass device is provided with the water server. According to information collected by the water flow sensor, the direct through temperature sensor and the outlet water temperature sensor, the controller controls the water server, the constant outlet water temperature of the gas water heater is achieved, the problem that in the prior art, the outlet water temperature of a gas water heater is not stable is solved, and the phenomenon that the temperature of the water outlet pipe is too high or too low is avoided.

The invention discloses a fluorine-carbon-aluminum automatic veneer spraying production line. The fluorine-carbon-aluminum automatic veneer spraying production line comprises a spray box. Guide pipesare fixedly mounted on the four sides of the inner wall of the spray box. Spray heads are equidistantly inlaid on the surfaces of the guide pipes. The bottom end of the inner wall of the spray box isfixedly connected with a material storage tank. An electromagnetic sliding rail penetrates through the spray box, and the bottom end of the electromagnetic sliding rail is equidistantly and fixedly connected with supporting columns. A plurality of electromagnetic sliding blocks are equidistantly sleeved inside the electromagnetic sliding rail. A feeding mechanism is mounted at the bottom ends of the electromagnetic sliding blocks. Under the action of the feeding mechanism, fluorine-carbon-aluminum veneers can be suspended at the bottom end of a connecting plate through a plurality of second hooks; sleeves are rotated manually, and threaded rods inside the sleeves can be driven to do lifting motion to drive the second hooks to do lifting motion and adjust the height of the fluorine-carbon-aluminum veneers, so that different sizes of fluorine-carbon-aluminum veneers are adjusted to the appropriate height, the connecting plate moves in the electromagnetic sliding rail through the electromagnetic sliding blocks to implement automatic assembly line spraying operation.

The invention provides an automatic filling and low-temperature heat-sealing composite film for hot sauce and a preparation method of the composite film. The method comprises the steps that polyethylene raw materials with different physical properties are blended, a three-layer co-extrusion film blowing machine is adopted for blowing to form a three-layer co-extrusion corona layer, the three-layerco-extrusion corona layer is composed of an inner-layer base film, a middle-layer base film and an outer-layer base film, and a printing layer is connected to the outer-layer base film in a compositemode. During preparation, for packaging of hot sauce with the temperature of 80-90 DEG C, the inner-layer base film, the middle-layer base film and the outer-layer base film are prepared by adoptinga three-layer co-extrusion upward blowing method; a printing layer and the outer-layer base film are compounded in a solvent-free mode, a material with high mechanical strength is effectively combinedwith the three-layer co-extrusion film, a composite film having a multi-layer composite structure and excellent comprehensive performance is obtained, and the composite film which meets low-temperature heat sealing and is suitable for high-speed automatic hot filling is manufactured.

The invention discloses a foldable drawing board with a drying function and an operation method of the foldable drawing board. The foldable drawing board comprises a drawing board body which is formed by hinging of two drawing board blocks, each drawing board block is provided with heat resistance wires, a relay, a temperature sensor and a control panel therein, function buttons are arranged on the surface of each drawing board block, the relay is connected with the heat resistance wires to control the same to open or close, the control panel is connected with the relay, the temperature sensor and the function buttons simultaneously, and the relay can be controlled to open or close according to signals of the temperature sensor and the function buttons.

The invention discloses a battery pack with a heat management and control function and a management and control system thereof, and the battery pack comprises a battery pack body, a temperature sensor and an adjusting device; the adjusting device comprises a heating cavity arranged at the bottom of the body and used for storing a heat-conducting medium, an electric heating wire arranged in the heating cavity, a plurality of containing cavities arranged on the upper middle portion of the inner side of the body, heat exchange plates arranged on the inner walls of the containing cavities, heat-conducting columns arranged on the inner sides of the heat exchange plates, partition plates arranged on the upper middle portions of the heat-conducting columns, adjusting cavities are arranged on the partition plates, and a heat conducting component which is used for adjusting temperature. Through cooperative use of the body, the temperature sensor and the adjusting device, the temperature of the battery in the battery pack can be adjusted, the stable use efficiency of the battery is kept, and the problems that the overall performance of the battery is reduced and the normal use of the battery is affected due to the fact that the internal temperature of an existing battery pack cannot be regulated and controlled and the temperature is easy to be too high or too low are solved.

The invention discloses a lithium battery production safety detection device. Through setting a voltage detection device, a voltage of a lithium battery can be detected, and whether the voltage of the lithium battery reaches standards is determined; through arranging an infrared thermometric indicator, temperature of the lithium battery can be detected without contacting the lithium battery, overhigh or overlow temperature of the lithium battery can be avoided, fire or blast caused by a disqualified lithium battery during actual use can be avoided; through arranging an X-ray sensor, whether a casing of the lithium battery breaks or expansion of the lithium battery occurs is determined by the X-ray sensor, and whether quality of the lithium battery reaches standards is determined; one side of a first conveyor belt is provided with a second conveyor belt, two sides of the second conveyor belt are respectively connected with branch conveyor belts, through detection, disqualified lithium batteries are conveyed to the second conveyor belt, so qualified lithium batteries and the disqualified lithium batteries are separated.

The invention discloses an engine oil filtering and cooling module for an engine. The engine oil filtering and cooling module for the engine comprises a shell and a water pump volute which are integrated, a top cover is fixed to the upper side wall of the shell, a bottom plate is fixed to the lower side wall of the shell, an engine oil cooler is fixed to the lower side wall of the bottom plate, and an oil return pipe is connected to the lower side wall of the engine oil cooler. An oil inlet and an oil outlet are formed in the outer wall of the shell, an oil conveying pipe connected with the oil inlet and the oil outlet is arranged in the shell, an engine oil filtering module is arranged in the middle of the oil conveying pipe, and an extension pipe is connected to the outer wall of the oil conveying pipe. The engine oil filtering and cooling module for the engine has the advantages that the water pump, the engine oil filtering module and the engine oil cooler are integrated, so that the structure is more compact, the occupied space is reduced, part of engine oil flows into the engine oil cooler to be cooled through shunting of engine oil when the temperature of the engine oil is too high, and it is guaranteed that the temperature of the engine oil is not too high or too low; and the engine oil can work at the normal temperature.

The invention provides a temperature control method and device of an air conditioner outdoor unit electric control plate. The temperature control method of the air conditioner outdoor unit electric control plate includes the steps of detecting the temperature of the air conditioner outdoor unit electric control plate, determining the current protective mode, judging whether the temperature belongs to the temperature needing controlling in the current protective mode and if yes, carrying out temperature protective control in the current protective mode. The temperature control method of the air conditioner outdoor unit electric control plate can improve operation stability and reliability of the air conditioner outdoor unit electric control plate.

The invention relates to the technical field of oxygen preparation, and particularly relates to a use method of pressure swing adsorption oxygen equipment. The equipment comprises two adsorption tanksand an oxygen buffer tank, a sealing cover is arranged in a tank opening in the upper side of each adsorption tank, a first gas guide pipe is fixedly connected with a desorption leading-out assembly,pneumatic switching valves are fixedly connected to the first gas guide pipe and a second gas guide pipe, a rotating rod is vertically arranged in each adsorption tank, a servo motor is fixedly arranged on the upper end face of each cylinder cover, a gas flow guide assembly in transmission connection with each rotating rod is arranged in an opening in the lower end of the corresponding cylinder cover, and an auxiliary desorption assembly in transmission connection with each rotating rod is arranged in the corresponding cylinder cover. The adsorption effect of the adsorption tanks can be improved, meanwhile, the flow direction of gas in the adsorption tanks is conveniently controlled, it is guaranteed that adsorption and desorption actions are not affected, an auxiliary desorption assemblyis further arranged to improve the desorption effect and efficiency, and an oxygen buffer tank is arranged and is used for controlling the oxygen pressure and controlling the oxygen temperature.

The invention relates to a medicine atomization inhaler comprising an atomization tank which is in the shape of a round barrel and is provided with an opening in the upper end, a mask communicated with the atomization tank through a pipe body, a cover covering the opening and being screwed to the inner wall at the opening of the atomization tank through threads and provided with a medicine adding opening, a pressure-stabilizing pipe communicated with the outer side wall of the atomization tank, a booster pump fixedly arranged on the outer wall of the upper portion of the atomization tank, a medicine adding part communicated with the inside of the atomization tank through the medicine adding opening, a temperature sensor arranged on the inner wall of the pipe body and connected with an electric heating device, and the electric heating device capable of regulating the temperature in the atomization tank according to the temperature signals detected by the temperature sensor. With the temperature sensor and the electric heating device, the temperature of gas in the atomization tank can be effectively regulated and the temperature of gas can be prevented from being too high or too low; the booster pump can regulate the pressure intensity in the atomization tank.

The invention discloses a semiconductor structure and a preheating method thereof. The semiconductor structure comprises a memory chip; a temperature detection unit which is used for detecting the temperature of the memory chip before the memory chip is started; and a control chip which is used for heating the storage chip before the storage chip is started, judging whether the temperature detected by the temperature detection unit reaches a set threshold value or not, and controlling the storage chip to be started if the temperature reaches the set threshold value. When the semiconductor structure works in a low-temperature environment, the temperature of the memory chip can be raised to a set threshold value through the control chip, so that the resistance of a bit line, a word line and a metal connecting line (a metal contact part) in the memory chip can be prevented from being increased due to too low environment temperature; therefore, the time for writing data into the memory in a low-temperature environment is shortened, and the writing stability of the memory is improved.

The invention discloses a full-automatic bacterial colony counter, and relates to detection instruments. The full-automatic bacterial colony counter comprises a case and a sealed case cover connected with the case, wherein the case is connected with the sealed case cover through an automatic opening-closing device; a transparent separator is arranged in the case and is used for dividing the case into a culture area and a detection area; a culture dish placing rack is arranged in the culture area; a camera rack is arranged in the detection area, and a digital camera is arranged on the camera rack; the digital camera is connected with a controller, and the automatic opening-closing device is electrically connected with the controller; and a control panel is embedded in the case, and is electrically connected with the controller. The full-automatic bacterial colony counter is used for culturing and counting bacterial colonies conveniently, is simple and convenient to operate and safe in working, has high identifying speed and relatively high work efficiency, and can meet the requirement for industrial automation.

The invention discloses a bypass flow valve and a gas water heater comprising the bypass flow valve. The bypass flow valve comprises a shell, a valve seat, a memory alloy spring, a first magnet, a second magnet, a valve core and a flexible sealing piece, wherein the valve seat, the memory alloy spring, the first magnet, the second magnet, the valve core and the flexible sealing piece are arrangedin the shell, and the first magnet and the second magnet are attracted by each other. The valve seat is fixed relative to the shell and is a hollow cylindrical member. The first end of the valve coreis connected with a cold water inlet through the flexible sealing piece. The second end of the valve core faces the valve seat. The memory alloy spring presses the valve core so that the valve core moves in the direction away from the valve seat. The first magnet is fixed to the valve core, and the second magnet is fixed to the valve seat. The bypass flow valve adopts the memory alloy spring. Through mutual cooperation of the memory alloy spring and the magnets, the water inlet amount of cold water can be adjusted according to the temperature of flowing hot water, so that the temperature of flowing mixed water is regulated, and the temperature of the flowing mixed water is prevented from being too high or too low. The gas water heater can adjust the water outlet temperature and prevent thewater outlet temperature from rising or dropping suddenly.

The invention discloses a cloth rack. A cloth rack body is included and comprises a base plate, fans, heating heat dissipation wires, fixing frames and cloth roll shafts. The two heating heat dissipation wires are arranged on the base plate at an equal interval. The fans are fixedly arranged on the two sides of the heating heat dissipation wires. The base plate is full of water. Each fixing framecomprises a fixing transverse rod, fixing vertical rods and joist steel, wherein the fixing vertical rods are welded to the two ends of the fixing transverse rod, and the joist steel is welded to thelower ends of the fixing vertical rods. The cloth roll shafts can slide on the fixing transverse rods through connecting frames, and a worker can conveniently adjust the distance between the two clothroll shafts according to the actual situation; through the arrangement of stop blocks, the connecting frames can be prevented from sliding out of sliding rails, the temperature detection sensitivityof the cloth rack can be improved, the placement temperature for cloth can be prevented from being too high or too low, the cloth placement temperature is more accurately guaranteed, and the cloth roll shafts can be fixed in grooves and can be prevented from sliding out during cloth rolling.

The invention discloses a hot melting device for waste copper foil tape recycling. The hot melting device for waste copper foil tape recycling comprises a recycling box. The outer wall of the top of the recycling box and the inner wall of the bottom of the recycling box are both fixedly provided with fixing rods. The other ends of the fixing rods are provided with heating plates. A temperature displaying mechanism is arranged on the inner wall of one side of the recycling box. A clearing mechanism is fixed to the inner wall of the recycling box. The outer wall of one side of the recycling boxis provided with a motor seat. The outer wall of the motor seat is provided with a motor. The two sides of the inner wall of the recycling box are fixedly provided with the same cross plate. The outerwall of one side of the cross plate and the inner wall of the recycling box are connected with two rotating rods through bearings. The temperature displaying mechanism comprises a temperature sensor.According to the hot melting device for waste copper foil tape recycling, the top and the bottom of the recycling box are provided with the fixing rods and the heating plates, the outer walls on thetwo sides of copper foil tape can be heated, it is guaranteed that the copper foil tape is evenly heated, the copper foil tape can be conveniently coiled, and the practicability of the hot melting device for waste copper foil tape recycling is improved.

The invention relates to the technical field of telegraph poles, in particular to a segmented combined type concrete telegraph pole. The segmented combined type concrete telegraph pole is characterized in that a middle combining pole is included, a base pole is assembled and connected to the lower end of the middle combining pole, a pole tip is arranged at the lower end of the base pole, a sleeve sleeves the base pole, and mutually hinged expansion anchor strips are connected between the sleeve and the pole tip; and an upper combining pole is assembled and connected to the upper end of the middle combining pole, one side of the upper combining pole is connected with a pull rope, the pull rope is connected with the base pole through a buffer anchor rod, the lower end of the pull rope transversely extends in the direction away from the base pole, and the lower end of the pull rope is connected with a positioning anchor rod. Through the assembled structure of the base pole and the middle combining pole, the base pole can be independently inserted into the ground firstly, then the middle combining pole is assembled to the base pole, the situation that installation is difficult due to the fact that the whole is too long is avoided, and the base pole is inserted deeper and more stable.

The invention discloses a bean sprout growth accelerating device. The bean sprout growth accelerating device comprises a supporting seat, wherein a culturing box is arranged on the upper surface of the supporting seat, and a top plate is arranged at the top of the culturing box; a first culturing layer is arranged in the culturing box, and a second culturing layer is arranged on the lower side of the first culturing layer; a culturing tank is formed in the upper surface of the first culturing layer, and a culturing medium is arranged in the culturing tank; a heat conducting plate is arranged on the lower side of the culturing medium, and a heating chamber is arranged on the lower side of the heat conducting plate; a through tank is formed in the supporting seat, and the culturing tank communicates with the through tank through a through hole formed in a side plate of the culturing box; and a water pump is arranged on one side of the culturing box, and the water pump communicates with the through tank through a water transfer pipe arranged at a water inlet of the water pump. Through the adoption of the bean sprout growth accelerating device disclosed by the invention, water can be continuously used circularly, so that water consumption can be reduced, the cost is reduced, the temperature of water can also be kept, the condition that the water temperature is too high or too low can be avoided, the bean sprout growth can be well accelerated, and the growth time of bean sprouts can be shortened.

The invention provides a baby bottle which is characterized in that a temperature meter capable of testing the temperature of milk in the baby bottle is arranged on a bottle body. With the temperature meter, the temperature of the milk in the baby bottle can be held at any time, thus overhigh or overlow temperature is avoided when a baby is fed with the milk, and the baby is facilitated to be normally and safely fed with the milk.

The invention belongs to the technical field of corn planting, and particularly relates to a corn and pea interplanting method. The interplanting method comprises the following steps: (1) conducting preparation of a planting field, specifically, laying activated phosphogypsum on the planting field, then spraying a film-forming solution, standing for 1 month, then applying decomposed cow dung before sowing, and deeply ploughing for 5-10 cm; (2) sowing, specifically, sowing in furrows, sowing pea seeds in mid-November every year, and sowing corn seeds in mid-March; and (3) conducting field management, specifically, after all pea seedlings grow out, applying a mushroom dreg fermentation fertilizer solution once, and then spraying a sunflower seed husk extracting solution. By adopting the method for planting the corn, the effects of increasing yield and improving quality can be achieved, accumulation of corncob polysaccharide and corn stigma polysaccharide is facilitated, the corn is excellent in growth state and low in morbidity, and waste such as shiitake mushroom residues, sunflower seed husks and ardealite is effectively utilized.

The invention discloses a central air conditioner integrated control system, and relates to the technical field of air conditioner control. The central air conditioner integrated control system comprises a control bracelet and a gateway, wherein one end of the control bracelet is connected with the gateway; the control bracelet is composed of an infrared receiving tube, a temperature sensor, a temperature adjusting button and a communication module; one end of the communication module is connected with the gateway; one end of the infrared receiving tube and one end of the temperature sensor are connected with the communication module; one end of the temperature adjusting button is connected with the communication module; a central processing unit is included; one end of the central processing unit is connected with the gateway; an infrared emitter is included; the input end of the infrared emitter is connected with the central processing unit; and the infrared emitter is connected withthe infrared receiving tube through emitted infrared scanning light. The control logic of a multi-control-end integrated control air conditioner is adopted, each person has part of authority for controlling the temperature, the temperature of the air conditioner is close to the ideal temperature average value of all wearers, and the beneficial effect of optimizing central air conditioner temperature control is achieved.

The invention provides a preparation method of phase changing temperature regulating leather. According to the preparation method, through solid wood extract and wattle bark extract step-by-step modification before dyeing treatment, the water absorption gas permeability of leather fibers is improved; in cooperation with the effects of higher aliphatic hydrocarbon and a crosslinking agent which areadded after acid solidifying, the higher aliphatic hydrocarbon is absorbed into the leather fibers, the crosslinking agent has the effect of crosslinking the leather fibers and the higher aliphatic hydrocarbon, the higher aliphatic hydrocarbon absorbed into the leather fibers can generate the process of mutual conversion between the liquid state and the solid state under the phase changing temperature, the thermal creep exchange principle is used, temperature regulation and control are achieved, the temperature around the leather can be stabilized to the liquid-solid conversion temperature, the leather has the heat absorbing and heat release function, temperature regulating modification of the leather is achieved, and the leather allows the temperature inside a leather shoe to be stabilized to 25 DEG C-31 DEG C.

The invention discloses a disassembled power battery secondary recycling container type energy storage module system which comprises a container body, a battery pack module is arranged in the container body, the front face of the container body is a front plate, the back face of the container body is a rear plate, a right side plate is installed on the right side of the container body, and a battery pack module is arranged in the container body. A left side plate is mounted on the left side of the container body; a remote management and maintenance intelligent system is arranged on the right side of a battery mounting frame of the battery pack module. According to the disassembled power battery secondary recycling container type energy storage module system, batteries are installed in a container mode, independent switch control is arranged in a container body, direct current output by a battery structure is transformed into alternating current through a transformer, and the magnitude of current is controlled through a rectifier in the transformer; and switching can be carried out at any time, two supply modes of discharging and charging are achieved, and the effect of cyclic utilization is achieved.

The invention discloses an air-conditioning-based distribution network voltage regulation method, comprising the following steps: S10, performing power flow calculation, determining the state of the distribution network and the power P required for voltage regulation of each node of the distribution network 1 ,P 2 ,...,P n ; S20, according to the status of the distribution network, determine the working status of the air conditioner that needs to be switched to participate in the regulation; S30, screen the air conditioners that can participate in the regulation; S40, select the air conditioner that participates in the regulation according to the regulation priority; S50, update the room temperature and prepare for the next time adjust. The invention regulates the voltage of the distribution network through air-conditioning management to ensure the quality of electric energy.

The invention relates to the field of intelligent control, in particular to an infrared recognition and visible light recognition cooking control system which comprises a user selection module used for selecting a menu name, a menu database used for storing menu names, cooking steps corresponding to the menu names and food material pictures corresponding to the menu names, a food material recognition module used for collecting food material pictures and matching the collected food material pictures with corresponding food material pictures in the menu database, a temperature detection module used for detecting the cooking temperature in the cooking process, a cloud server connected with the menu database, the food material identification module and the temperature detection module and used for comparing the data of the actual cooking process of the user with the cooking steps corresponding to the menu in real time, a display module connected with the cloud server, and a voice module connected with the cloud server. The problem that a cooking beginner cannot master the degree of fire and cannot know the cooking process at any time is solved.

The invention discloses a three-phase power distribution network voltage regulation method based on a variable-frequency air conditioner. The method comprises the following steps of S10, calculating tide and three-phase unbalance degree, determining the state of a power distribution network, and regulating the voltage and unbalance degree of each node of the power distribution network according tothe state of the air conditioner; classifying the air conditioners by using an Affinity Propagation (AP) clustering algorithm to determine the priorities of the air conditioners participating in adjustment; S30, according to the power required by adjustment and the priority of adjustment, the number of air conditioners required by adjustment and the allocated adjustment power of each air conditioner are determined; S40, the compressor frequency of the air conditioner is changed according to the adjusting power; and S50, the room temperature is updated, and next adjustment is prepared. Voltageregulation is conducted on the power distribution network through air conditioner management, and the electric energy quality is guaranteed.

The invention discloses a bypass constant temperature regulating valve and a gas water heater comprising the valve. The bypass thermostatic regulating valve includes: a housing and a valve seat located inside the housing, memory alloy spring, elastic member, valve core, and flexible seal; the housing is provided with a cold water inlet, a hot water inlet, and a hot water outlet; the valve The seat is fixed relative to the housing; the valve core is a hollow cylindrical member, the first end of the valve core is connected to the cold water inlet through a flexible seal, and the second end of the valve core is set facing the valve seat; the memory alloy spring biases the valve core to making the valve core move toward the first direction; the elastic member biases the valve core so that the valve core moves toward the second direction. The bypass thermostatic regulating valve adopts a memory alloy spring, which can adjust the intake of cold water according to the temperature of the hot water flowing through, so as to adjust the temperature of the mixed water flowing out, and avoid the temperature of the mixed water flowing out from being too high or too low. The gas water heater can adjust the outlet water temperature to prevent the outlet water temperature from rising or dropping suddenly.

A liquefied natural gas vaporization system comprises a liquefied gas bottle, a vaporizer, a heating medium pipe and gas burning equipment, wherein the liquefied gas bottle is communicated with the vaporizer, and the heating medium pipe penetrates through the vaporizer which is communicated with the gas burning equipment; the liquefied natural gas vaporization system further comprises an electronic control unit, a temperature sensor electrically connected with the electronic control unit as well as a flow adjusting valve, and the temperature sensor is used for sensing the temperature of liquefied natural gas vaporized gas output by the vaporizer and informs the electronic control unit of the temperature; the flow adjusting valve is arranged on the heating medium pipe, is controlled by the electronic control unit and is used for adjusting flow of heating media in the heating medium pipe. The invention further provides an automobile. The liquefied natural gas vaporization system and the automobile have the advantage that the temperature of the liquefied natural gas vaporized gas output by the vaporizer can be controlled in a certain range.

The invention discloses a folding drawing board with drying and air-drying functions and a working method of the folding drawing board. The folding drawing board comprises a drawing board body, wherein the drawing board body is formed by hinging two drawing board modules, and a heating resistance wire, a relay, a temperature sensor, a control panel, a vacuum generator and a sucking disc are arranged in each drawing board module; a function key and a sucking disc mounting hole for allowing the sucking disc part to extend out are arranged on the surface of each drawing board module; each relay is connected with the corresponding heating resistance wire and controls the opening / closing of the corresponding heating resistance wire, and each control panel is simultaneously connected with the corresponding relay, the corresponding temperature sensor, the corresponding vacuum generator and the corresponding function key; the opening / closing of each relay can be controlled according to signals of the corresponding temperature sensor and the corresponding function key, and meanwhile the opening / closing of each vacuum generator is controlled through the corresponding function key.

The invention discloses a storage device for a cement culvert pipe. The storage device comprises a water tank, a tank body, a water pump, foam and an exhaust fan. A first control panel is arranged onthe outer side of the water tank. The water pump is arranged in the water tank. A water pumping pipe is arranged at the lower end of the water pump. A water outlet pipe is arranged at the upper end ofthe water pump. A spray head is arranged at one end of the water outlet pipe. The tank body is arranged on one side of the water tank. The foam is arranged in the tank body. The exhaust fan is arranged on the rear side of the interior of the tank body. A temperature detector is arranged on one side of the interior of the tank body. A humidity detector is arranged above the temperature detector. Atank door is arranged on the front side of the tank body. A coded lock is arranged on the tank door. The storage device is provided with the temperature detector, and the temperature in the tank canbe prevented from being too high or too low; and the storage device is provided with the humidity detector, the humidity in the tank can be prevented from being too high or too low, and therefore, theuse quality of the cement culvert pipe is guaranteed.