36results about How to "Control air flow" patented technology

The invention discloses an ink receiving device of an inkjet printer, comprising an ink receiving plate, an inner cover sleeved on the inner side of the ink receiving plate and an outer cover connected and fixed on the outer side of the ink receiving plate. A chamber is formed between the ink receiving plate and the inner cover. Two sides of the chamber are separated and provided with separating plates, and the separating plates separate the chamber to an ink receiving cavity and a negative-pressure liquid collecting cavity. The ink receiving cavity is communicated with the inner cover, and the bottom of the ink receiving cavity is communicated and provided with an ink discharging pipe. The negative-pressure liquid collecting cavity is communicated with the outer cover, and the bottom of the negative-pressure liquid collecting cavity is communicated and provided with a flow guiding member. The invention further discloses an inkjet printer. By the utilization of the inkjet printer and the ink receiving device disclosed by the embodiment of the invention, fog-shaped particles in the inkjet printer air can be separated and collected, the air flow around the inkjet printer is effectively controlled, less fog-shaped particles brought by flowing air can be separated and recycled and ambient environment and health of operators are protected.

A panel (10) that is a roof cover for a sloped roof and that also is a mounting system for an array of PV modules (132). The panels (10) define rails (22, 24, 28, 30) that interlock with grooves (46, 48, 124, 126) to secure adjacent panels in each row of the array. The modules (132) are supported by bosses (34, 120) that determine the height of the module array and avoid the interlocking structure between the modules.

The invention relates to a helium ionized gas chromatographic analyzer for analyzing trace impurities in high-purity germane gas. The helium ionized gas chromatographic analyzer is characterized in that the helium ionized gas chromatographic analyzer comprises a chromatographic column oven, a temperature control system, a signal acquiring and processing system and a tail gas treatment system, wherein the signal acquiring and processing system comprises a helium ionized detector and a chromatographic column workstation, the temperature control system can achieve independent temperature control of all chromatographic columns and the detector and controls the temperature of the chromatographic columns to rise according to the time program, and the chromatographic column workstation comprises three switching valves (including one ten-way valve and two six-way valves), three chromatographic columns, four needle valves and three carrier gas paths, and the helium ionized detector is connected with the line of the chromatographic column workstation. The helium ionized gas chromatographic analyzer is used for analyzing trace impurities in high-purity germane gas, can achieve ppb-level impurity analysis through high sensitivity of the helium ionized detector and realizes total analysis of the germane impurities through once sampling.

The invention provides a sealing sampling device for collecting rainwater. The sealing sampling device comprises a tank and a container arranged inside the tank and used for collecting the rainwater, wherein the container comprises an aqueduct with a first sealing piece, an exhaust pipe with a second sealing piece, and a humidity and temperature monitor; a funnel for collecting the rainwater is arranged at the upper part of the aqueduct; the exhaust pipe comprises a first end part and a second end part with the second sealing piece; a movable block of the first sealing piece is opened along a rotating shaft under the pressure of the rainwater; when the rain is finished, the first sealing piece is automatically closed under the action of the movable block; when the rainfall is high, the movable block of the second sealing piece is opened under the impact of airflow; when the rain is finished, the second sealing piece is automatically closed under the action of the movable block. According to the sealing sampling device provided by the invention, by improving the sealing structure of the device, the original features of a rainfall sample in the container are kept, and a reliable guarantee is provided for the accurate measurement of the content of hydrogen and oxygen isotopes in the rainwater.

The invention relates to a humidity control device which comprises a humidifying device, a drying device, a humidity sensor and a controller. The humidity sensor is used for detecting the humidity of the environment, obtaining the preservation humidity value, and transmitting the preservation humidity value to the controller. The controller compares the preservation humidity value with a set humidity value, starts the drying device to work when the preservation humidity value is larger than the set humidity value, and starts the humidifying device to work when the preservation humidity value is smaller than the set humidity value. The humidity control device has the advantages that the humidity control device is arranged in a drawer, installed in a refrigeration chamber of a refrigerator, powered by the refrigeration chamber and driven by the controller to run, the related humidity is set according to stored objects, the application range is wide, and humidity control is accurate; the humidity control drawer is easily combined with the refrigerator, only a circuit interface needs to be added without largely changing the structure of the refrigerator compared with an ordinary drawer, and universality is high. The invention further relates to a preservation box in the refrigerator and the refrigerator.

The invention relates to an optical fiber drawing furnace comprising a furnace body, a heating element, a heat preservation element, a middle casing pipe, a flow guide pipe, an extension pipe and a furnace top gaseous disc. The optical fiber drawing furnace is characterized by further comprising a lantern ring, an elastic graphite ring and a gas guide disc. The gas guide disc is mounted on the furnace top gaseous disc. The elastic graphite ring is mounted on a hollow ring plate. The lantern ring is arranged between the flow guide pipe and the extension pipe. A plurality of first air inlet holes can be formed in the side wall of the extension tube at the upper end of the lantern ring. The optical fiber drawing furnace has the advantages of being applicable to drawing prefabricated bars in large diameter and optical fiber prefabricated bars with large diameter fluctuation, meanwhile ensuring that graphite dust has less possibility of being adhered to the prefabricated bars, and effectively controlling the air flow state in the drawing furnace.

The invention relates to the field of valves and discloses an air channel switch valve and a grinding machine. The air channel switch valve comprises a seat body, a switch structure and a driving mechanism. A vent hole is formed in the seat body, the switch structure comprises a frame body arranged on the seat body and a plurality of gate plates arranged in the frame body, the frame body is arranged along the edge of an opening in one end of the vent hole, and an airflow passage is defined by the frame body and the vent hole jointly. A plurality of mounting holes are formed in the peripheral side of the frame body, each gate plate is rotationally connected with the corresponding mounting hole through a shaft body, the shaft bodies partially extend out of the frame body, when the multiple gate plates are turned over, the airflow passage in the frame body can be opened or closed selectively. The driving mechanism is used for driving all the gate plates to rotate relative to the frame body. The grinding machine comprises the air channel switch valve. The driving mechanism drives the gate plates to be turned over to achieve opening or closing of the airflow passage, the structure is simple and stable, operation is convenient, the open degree of the air channel switch valve can be controlled through the rotating angle, and thus the air flow rate is controlled.

The invention relates to the technical field of ecological agriculture, in particular to an intelligent ecological greenhouse. The intelligent ecological greenhouse comprises a greenhouse body which is mainly composed of a supporting framework, a film covers the supporting framework, the top of the supporting framework is of a laminated structure, and a sunshade layer, a heat preservation quilt layer, a vacuum layer, an inner overshadow layer and a glass layer are sequentially arranged on the top of the supporting framework from top to bottom. Recirculation blowers are arranged on the two sides of the greenhouse body, temperature control blowers are arranged in the middle of the greenhouse body, two underground water wells are formed in the lower portion of the greenhouse body, the two underground water wells can conduct circulation through a underground water channel, multiple rows of houses are arranged on the two sides of the greenhouse body, fish ponds are arranged nearby the houses, and an overground water tank is arranged in the greenhouse body. The lower temperature of the underground water is fully utilized, the temperature, the humidity and the ventilation degree in the greenhouse body are intelligently controlled, and existing resources are fully utilized.

The invention relates to an optical fiber drawing method for a large-diameter optical fiber preform rod. The method comprises the following steps: continuously moving the large-diameter optical fiber preform rod downwards to enter an optical fiber drawing furnace through a lifter, heating and drawing to form a finished optical fiber, inputting protective gas into the furnace body through an extension pipe at the furnace bottom, allowing the protective gas to flow upwards, allowing the gas to flow out of a gas outlet of a gas guide disc, and allowing the protective gas input by the gas guide disc and a gas sealing cover to flow out of the gas outlet of the gas guide disc. The method has the advantage that the large-diameter optical fiber preform rod can be drawn to form the optical fiber with stable quality.

The invention discloses a diaphragm plate type idle speed control valve, comprising a valve body, wherein the valve body comprises a coil bag assembly component, and a valve base mounted in match with the coil bag assembly component; the coil bag assembly component comprises a coil bag assembly mounted in a matched manner, a sleeve, a piston assembly, a third pressure spring and an upper cover plate; the sleeve, the piston assembly, the third pressure spring and the upper cover plate are integrally riveted with the coil bag assembly; the valve body comprises a diaphragm plate component; the diaphragm plate component comprises a diaphragm plate assembly, a lower cover plate assembly, a second pressure spring and a transmission rod assembly; the diaphragm plate assembly and the lower cover plate assembly are mounted in the matched manner; the second pressure spring is arranged between the diaphragm plate assembly and the lower cover plate assembly; the diaphragm plate assembly comprises a lower pressing plate, a diaphragm plate and an upper pressing plate, which are mounted in the matched manner; and a vacuum chamber is formed between the diaphragm plate assembly and the coil bag assembly component. The diaphragm plate type idle speed control valve provided by the invention can accurately control the flow of air entering an engine according to vacuum variation caused by variation of a working condition of an idle speed of the engine, so that the idle speed of an automobile is table, the service life of the engine is prolonged, and the riding comfort degree of the automobile can be improved.

The invention discloses a polytetrafluoroethylene waterproof gas-permeable membrane and a preparation method thereof, and relates to a polytetrafluoroethylene waterproof gas-permeable membrane which is suitable for a gas sensor and has good gas permeability and hydrophobic property, and a preparation method thereof. The invention relates to the polytetrafluoroethylene waterproof breathable membrane which is prepared by the steps: uniformly mixing a polytetrafluoroethylene emulsion base material, pore-forming filler zinc oxide and aluminum oxide, and cross-linking dispersing auxiliary agents anhydrous sodium sulfate and sodium chloride, and carrying out mould pressing sintering and turning processing to obtain a membrane base material; the membrane base material is prepared through the procedures of pore forming agent removal, drying, hydrophobic treatment and irradiation; and the weight ratio of the polytetrafluoroethylene emulsion base material to the pore-forming agent filler zinc oxide to the pore-forming agent filler aluminum oxide to the crosslinking dispersing auxiliary agent anhydrous sodium sulfate to the crosslinking dispersing auxiliary agent sodium chloride is (40%-80%):(10%-40%):(10%-40%):(2%-10%). The problem that the sensitivity of a gas sensor is too high due to the fact that the ventilation volume of an existing waterproof breathable membrane cannot be controlled is solved, and the gas sensor can be sealed more easily.

The utility model relates to automotive sunroof curtain cloth and a curtain cloth system thereof. The automotive sunroof curtain cloth comprises at least one curtain cloth area, at least one sparse area and at least one supporting device. The curtain cloth system with the automotive sunroof curtain cloth comprises at least two adjacent automotive sunroof curtain cloth, one end of each automotive sunroof curtain cloth is connected with a shaft, at least one end of each shaft is provided with at least one reset device, and at least one reset device is connected with the automotive sunroof curtain cloth. An intersection end is arranged between every two shafts of the at least two automotive sunroof curtain cloths, and a gear unit is arranged at each intersection end. The sparse area is arranged in the curtain cloth, so that the light intensity in the automobile can be regulated and controlled, and the problem of insufficient light in the automobile after the curtain cloth is unfolded is avoided. The two layers of curtain cloths can be unfolded and contracted in different directions, and regulation and control of light and air circulation degree in an automobile are achieved according to overlapping or dislocation of sparse areas in the upper-layer automotivesunroof curtain cloth and the lower-layer automotive sunroof curtain cloth.

The invention discloses a spinning device for nanofiber production. The spinning device for nanofiber production comprises a high-pressure air pump, a spinning solution storage tank, an electrostatic generator, a metal screen and a nanofiber receiver. The electrostatic generator is connected with the metal screen, an electric field area is formed between the metal screen and the nanofiber receiver, a housing is arranged at the lower end of the metal screen and is provided with an air inlet and a liquid inlet, the air inlet is connected with the high-pressure air pump, the liquid inlet is connected with the spinning solution storage tank, spinning solution paths formed among round particles filled into the housing are formed in the housing, the liquid inlet and the air inlet are communicated with the spinning solution paths, and the metal screen is located above the spinning solution paths. Compared with existing nanofiber spinning batch-production devices, nanofiber spinning functions are diversified, and the spinning device for nanofiber production is easy to operate, convenient to use and low in power consumption.

The invention provides a pulsating gas generating device and unstable combustion experimental equipment, and relates to the technical field of aerospace equipment. The pulsating gas generation device comprises a control module and a pulsating gas flow generation module; the pulse airflow generation module comprises a base and two vibrators, the two vibrators are oppositely arranged on the two sides of the base and connected with the control module, a relatively-sealed vibration cavity is formed between the two vibrators and the base, the base is further provided with an air inlet and an air outlet, and the air inlet and the air outlet are communicated with the vibration cavity. The air inlet is externally connected with an auxiliary air path for providing auxiliary airflow, and the air outlet is connected with an injection device in a combustion chamber of the rocket engine model. The pulsating gas generating device provides experimental conditions for assisting pulsating gas flow disturbance to a combustion instability mechanism, the experimental effect is good, and the pulsating gas generating device is simple in overall structure, convenient to install and low in cost.

The invention discloses a power dispatching distribution cabinet, which comprises a cabinet body and a cabinet door. An electrical assembly board is arranged on the inner wall of the cabinet, and several horizontal bar-shaped rail grooves are arranged at equal intervals on the electrical assembly board. One of the electrical assembly boards There is a vertical rail groove connected to the horizontal rail groove on the side, and an indexing ring is provided at the connection between the horizontal rail groove and the vertical rail groove, and folding metal parts are arranged in the horizontal rail groove; The assembly board is also provided with a cable rack, the cable rack is provided with a cover, the upper and lower surfaces of the cable rack are provided with cable grooves, rubber parts are arranged on the cable groove, and one side of the cable frame is attached to the On the side wall of the cabinet, a ventilation interlayer is provided on the cable rack attached to the cabinet body, and an exhaust cavity is arranged in the middle of the cable rack on the side wall, and the bottom of the exhaust cavity is bent and connected to the side facing the electrical assembly board On the edge of the cabinet, fans are installed in the exhaust chamber, which optimizes the installation of electrical switches in the power distribution cabinet, more efficient dust removal in the power distribution cabinet, and improves the safety of the power distribution cabinet.

The invention relates to the technical field of motors, in particular to an air conditioner motor control system. The air conditioner motor control system comprises a communication module, a motor controller and a motor body, wherein the communication module is connected with the motor controller which is connected with the motor body, and output of the motor body is connected with a compartment. The air conditioner motor control system is simple in structure and is connected with the compartment, thereby being capable of controlling the compartment temperature and air circulation condition of the compartment.

The invention provides an experimental device for studying the influence of high temperature disaster on the blocking of wheat photosynthetic capacity, and relates to the field of wheat planting, including an experimental box, a fluorescent lamp is arranged on the top of the experimental box, a cultivation frame is slidably connected in the experimental box, and a side of the experimental box is provided. An air tank is provided with a gas circulation mechanism, the gas circulation mechanism includes an air duct fixed on the side of the test box, and an exhaust fan is rotatably connected in the air duct, and the fan blades of the exhaust fan are fixedly connected. There is a resistance wire, the air duct is communicated with the air groove on the other side of the experimental box through the air duct at the bottom of the experimental box, and the air duct is connected to the air supply and exhaust mechanism. The photosynthetic rate of wheat under temperature, thus confirming that the photosynthetic capacity of wheat is hindered under high temperature disaster conditions.

The invention provides an experimental device for studying the hindered influence of high-temperature disasters on the photosynthetic capacity of wheat, and relates to the field of wheat planting.The experimental device comprises an experimental box, a fluorescent lamp is arranged at the top of the experimental box, a cultivation frame is slidably connected into the experimental box, and a gas groove communicated with a gas circulation mechanism is formed in the side face of the experimental box; the gas circulation mechanism comprises an air duct fixed to the side face of the test box, an exhaust fan is rotationally connected into the air duct, a resistance wire is fixedly connected to fan blades of the exhaust fan, the air duct communicates with an air groove in the other side of the test box through an air pipe at the bottom of the test box, and an air supply and exhaust mechanism is connected to the air pipe. The discharged gas is detected to obtain the photosynthetic rate of the wheat at a specific temperature, thereby determining the blocking influence of the photosynthetic capacity of the wheat under the high-temperature disaster condition.

The invention provides a clothes care device control method and device and a storage medium, and the control method comprises the steps: obtaining: when a clothes care device runs a drying program, obtaining the specific drying stage of a specific drying mode of the drying program, and obtaining the real-time temperature Ts of the airflow of an air inlet of a drying air duct; in the judgment step, the size relation between the Ts and a preset temperature value Ty is judged; and an execution step: controlling and adjusting the opening degree of the air door according to the specific drying stage of the specific drying mode and the size relationship between the Ts and the Ty. According to the method and the device, the opening degree of the air door is controlled according to the size relation between the real-time airflow temperature Ts and the preset temperature value Ty in different specific drying stages, so that the airflow circulation amount can be more reasonably matched with different drying modes and drying stages; and the drying heating rate can be adjusted through different air flow fluxes, so that the heating duration can be indirectly controlled, heat needed by all specific drying stages is effectively controlled, and more energy conservation and environmental protection are achieved.

The invention relates to a humidity control device, which includes a humidifying device, a drying device, a humidity sensor and a controller; the humidity sensor is used to detect the humidity of the environment, obtain a storage humidity value, and transmit the storage humidity value to the controller; the controller will The storage humidity value is compared with the set humidity value; when the storage humidity value is greater than the set humidity value, the controller starts the drying device to work; when the storage humidity value is lower than the set humidity value, the controller starts the humidification device to work. The beneficial effect of the present invention is that the humidity control device is arranged in the drawer and installed in the freezer compartment of the refrigerator, takes power from the freezer compartment, drives the controller to operate, sets relative humidity according to stored items, has a wide application range and accurate humidity control. The combination of the humidity control drawer and the refrigerator is simple. It only needs one more circuit interface than the ordinary drawer, and there is no need to change the structure of the refrigerator. It has strong versatility. The present invention also relates to a preservation box used in a refrigerator and a refrigerator.

The invention relates to the field of valves and discloses an air channel switch valve and a grinding machine. The air channel switch valve comprises a seat body, a switch structure and a driving mechanism. A vent hole is formed in the seat body, the switch structure comprises a frame body arranged on the seat body and a plurality of gate plates arranged in the frame body, the frame body is arranged along the edge of an opening in one end of the vent hole, and an airflow passage is defined by the frame body and the vent hole jointly. A plurality of mounting holes are formed in the peripheral side of the frame body, each gate plate is rotationally connected with the corresponding mounting hole through a shaft body, the shaft bodies partially extend out of the frame body, when the multiple gate plates are turned over, the airflow passage in the frame body can be opened or closed selectively. The driving mechanism is used for driving all the gate plates to rotate relative to the frame body. The grinding machine comprises the air channel switch valve. The driving mechanism drives the gate plates to be turned over to achieve opening or closing of the airflow passage, the structure is simple and stable, operation is convenient, the open degree of the air channel switch valve can be controlled through the rotating angle, and thus the air flow rate is controlled.

The invention relates to the field of environmental conditioning, in particular to an environmental conditioning device. The environmental conditioning device comprises a vertically-arranged supporting mounting cylinder, wherein supporting mounting columns are arranged at the four corners of the lower end of the supporting mounting cylinder correspondingly, a transmission mounting cylinder is vertically arranged in the middle of the interior of the supporting mounting cylinder, and a fixed mounting column is vertically arranged in the middle of the lower end of the transmission mounting cylinder; the lower end of the fixed mounting column is fixed to the bottom of the supporting mounting cylinder, a reducing air discharging cylinder is vertically arranged at the upper end of the supportingmounting cylinder, a water storage cylinder is vertically arranged at the upper end of the transmission mounting cylinder, and atomization and humidification operation of the device is completed through an internal highly-concentrated structure, so that adjustment of the environment humidity is achieved; synchronous gear transmission and belt transmission are adopted, so that implementation of bidirectional reducing diversion is realized; and meanwhile, atomization humidification is matched, so that humidity adjustment is achieved, air flow guide in the device is controlled through rotation angle adjustment, and silence and high efficiency are achieved.

The invention discloses a rolling control mechanism suitable for a small vertical take-off and landing fixed-wing aircraft, comprising a rolling nozzle and a rolling control adjusting mechanism. , a rolling nozzle is installed symmetrically to the left and right along the radial direction of the engine barrel, and the rolling control and adjustment mechanism includes a driving device installed on the outer wall of the engine barrel and a rolling nozzle installed inside the connection between the rolling nozzle and the engine barrel. The blocking device, the driving device drives the blocking device to adjust the size of the airflow inlet of the rolling nozzle; the invention has a simple and delicate structure, light weight, the rolling nozzle can be quickly installed and unloaded, and the rolling control and adjustment mechanism has high maintenance accessibility. , By controlling the steering gear, it can provide partial lift for the aircraft in the horizontal flight state and the vertical take-off and landing state, and realize the roll control of the acceleration transition from the vertical take-off and landing state to the horizontal flight state.

The invention provides a device and a method for measuring steam and non-condensable gas flow. The device comprises a gas entraining pipe, a cooler, a gas condensation bottle and a flow meter, one end of the cooler is connected with the gas entraining pipe, mixed gas is leaded into the other end of the cooler, the other end of the gas entraining pipe is connected with the gas condensation bottle, and the gas condensation bottle is sealed and connected with the flow meter through a connecting pipe. The device solves the problem that an existing flow measuring device cannot simultaneously detect steam and non-condensable gas in the mixed gas. The method is simple to operate, accurate in metering and suitable for popularization and application.

The invention relates to an optical fiber drawing furnace comprising a furnace body, a heating element, a heat preservation element, a middle casing pipe, a flow guide pipe, an extension pipe and a furnace top gaseous disc. The optical fiber drawing furnace is characterized by further comprising a lantern ring, an elastic graphite ring and a gas guide disc. The gas guide disc is mounted on the furnace top gaseous disc. The elastic graphite ring is mounted on a hollow ring plate. The lantern ring is arranged between the flow guide pipe and the extension pipe. A plurality of first air inlet holes can be formed in the side wall of the extension tube at the upper end of the lantern ring. The optical fiber drawing furnace has the advantages of being applicable to drawing prefabricated bars in large diameter and optical fiber prefabricated bars with large diameter fluctuation, meanwhile ensuring that graphite dust has less possibility of being adhered to the prefabricated bars, and effectively controlling the air flow state in the drawing furnace.

The invention discloses a wet-conducting and breathable woolen fabric. The wet-conducting and breathable woolen fabric comprises a cotton cloth, wherein the two sides of the cotton cloth are provided with cloth edges which are closely attached with the cotton cloth; satins are arranged at the right sides of the cloth edges, and are uniformly distributed on the cotton cloth; a wear-resistant layer is arranged at the bottom part of the cotton cloth and is fixedly connected with the cotton cloth; and polyester taffeta is arranged under the wear-resistant layer and is vertical to the wear-resistant layer. The wet-conducting and breathable woolen fabric disclosed by the invention has the advantages that due to coatings, the surface pores of the woolen fabric are closed or enlarged to a certain extent by an additive in the coatings, air flow on the surface of the woolen fabric is effectively controlled, and the benefit for enhancing the breathability of the woolen fabric is achieved; an oil-stain resistant layer generates chemical reaction with oil stains to form a layer of protective film, so that the oil-stain resistant effect is achieved; and the wet-conducting and quickly-drying fiber is adhered at the inner part of the cotton cloth, is rapidly diffused, is further conveyed to outer-layer fibers of the fabric and is evaporated in the outer-layer fiber, so that the wet-conducting property of the fabric is improved.