41results about How to "Uniform ventilation" patented technology

The invention provides a household humidification-oxygenation aerial fog planting box in the field of plant planting. The aerial fog planting box comprises a box body, wherein at least one layer of planting disk is arranged at intervals in the box body from bottom to top; an exhaust outlet is formed above the whole planting disks on the box body; an air inlet is formed in a side wall of the bottom of the box body and below the whole planting disks; a fan is arranged in the air inlet or the exhaust outlet; transverse ventilation channels are formed in the planting disks; a water supplying tray is arranged on the lower side of the air inlet and at the bottom in the box body; at least one atomizing device is arranged on the water supplying tray; a water storing cavity is formed by the water supplying tray and the bottom side of the box boy; the air inlet of the atomizing device is communicated with the water storing cavity. By adopting the planting box, gas inside the planting box and gas outside the planting box can be exchanged fully, uniform ventilation of plants is realized, uniform moisture is actively supplied to the plants uniformly, and good growth vigor of the plants is ensured. Water negative ions generated by atomization are introduced into the air, so that an indoor waterfall environment is created.

The invention belongs to the field of iron-smelting, and particularly discloses a method for roasting siderite and a shaft furnace, which can lower pollution on the environment. The method for roasting the siderite comprises the following steps: supplying coal gas into a flame spray device; igniting the coal gas; and spraying flame into a furnace chamber of the shaft furnace by the flame spray device. The shaft furnace comprises the flame spray device, wherein an outer wall of the flame spray device is provided with a coal gas inlet and a spray nozzle which are communicated with each other; and the spray nozzle is communicated with the furnace chamber of the shaft furnace.

The invention discloses a method for cultivating ginseng stem cells by using a biological reaction device, which comprises the following steps: (1) adopting a one-step method to cultivate ginseng adventitious roots; (2) taking the root tip part of ginseng adventitious roots and placing them in an osmotic agent solution for treatment; 3) put the treated ginseng adventitious root root tip into the stem cell induction medium for culture, and then transfer to the stem cell expansion solid medium for culture; (4) collect the ginseng stem cells obtained in step (3), and inoculate them into the culture medium containing In the biological reaction device of the stem cell expansion liquid medium, culture in the dark to obtain ginseng stem cells. The present invention obtains a method for obtaining adventitious roots from mature ginseng and further obtaining ginseng stem cells with shorter required time and simpler steps, adopts a suitable biological reaction device for expanded culture, and has a high growth factor of stem cells and a high content of active ingredients in the stem cells.

The invention belongs to the field of iron-smelting, and particularly discloses a method for roasting siderite and a shaft furnace, which can lower pollution on the environment. The method for roasting the siderite comprises the following steps: supplying coal gas into a flame spray device; igniting the coal gas; and spraying flame into a furnace chamber of the shaft furnace by the flame spray device. The shaft furnace comprises the flame spray device, wherein an outer wall of the flame spray device is provided with a coal gas inlet and a spray nozzle which are communicated with each other; and the spray nozzle is communicated with the furnace chamber of the shaft furnace.

The invention relates to the technical field of additive manufacturing, and discloses a seed arrangement plate device based on the three-dimensional printing technology. The seed arrangement plate device comprises a fixed rack, the bottom of an inner cavity of the fixed rack is fixedly connected with a control platform, the top of an inner cavity of the control platform is fixedly clamped with L-shaped protection plates in a clamped manner, and the number of the L-shaped protection plates is two. According to the seed arrangement plate device based on the three-dimensional printing technology,through cooperation of a material filling device, a material arrangement device and a position adjuster, the material arrangement device is filled with materials through a discharging pipe, generatedairflow flowing out of an air inflation device can be conveniently and smoothly exhausted, and ventilation is uniform; and the included angle of the intersecting lines between the two ends of an opening of an arc-shaped protection filter plate and the circle centers of discs is 60 degrees, an S-shaped partition plate divides disc sections, seeds in the discs can conveniently flow into V-shaped grooves under the combined action of the gravity of the seeds and airflow pushing, the seed arrangement process is simple, and the effect that seeds are evenly arranged on the seed arrangement disc device is improved.

The invention discloses a microwave feed port structure based on a wood medium. The microwave feed port structure comprises a heating cavity, four same microwave feed port waveguides, a hot air inlet apparatus, a hot air outlet apparatus and a temperature measurement apparatus, wherein each microwave feed port waveguide adopts a shrink shape; the four same microwave feed port waveguides are connected with the side walls of the heating cavity in a up and down, left and right way; the four same microwave feed port waveguides are used for uniformly feeding microwave energy to the periphery of the heating cavity; the hot air inlet apparatus is connected to one end of the heating cavity while the hot air outlet apparatus is connected to the other end of the heating cavity; and the temperature measurement apparatus is arranged on the heating cavity. By adoption of the microwave feed port structure, the field strength of the wood in the heating process is reinforced while the uniformity of the microwave field strength on each surface of the wood is enhanced, and generation of surface attachment on the microwave shrink feed port structure is reduced, so that a sparking condition in the feed port is further reduced.

The invention discloses a flammable gas high-pressure cylinder storage protection cabinet and a method thereof. The protection cabinet includes a storage cabinet and a control cabinet. The storage cabinet is provided with a liquid carbon dioxide gas cylinder, a vaporizer, a vertical slide rail and a collar. A control center, a laser inclinometer, an audible and visual alarm, a temperature detector, a gas detector and a sprinkler connected to a three-position four-way valve are provided; the method includes steps: 1. Check the protection cabinet and connect the pipeline; 2. Initialize the control center; 3. Obtain the monitoring data of the protection cabinet in real time; 4. Determine whether the protection cabinet is tilted; 5. Determine whether there is a gas leakage in the storage cabinet and an open flame outside the storage cabinet at the same time; Gas leakage; 7. Determine whether there is an open flame outside the storage cabinet; 8. Repeat steps 3 to 7 multiple times to realize the protection of high-pressure gas cylinders. The invention integrates the processing of potential safety hazards generated by the high-pressure gas cylinder itself and the safety hazards brought by the external environment, and has high reliability.

A rotary motor rotor improves a ventilation cooling structure, so ventilation quantity in a ventilation pipe is uniform, thus preventing uneven cooling effect, and realizing temperature equalization of a cooled object; an outer periphery of a rotor core (12) nested with an outer periphery of a rotary shaft (11) is provided with a plurality of groovings (14) containing a rotor rod (13) in an axial direction; the outer periphery of the rotary shaft (11) is provided with a plurality of vent slots (15) arranged at intervals along the periphery in the axial direction; a plurality of portions of the rotor core (12) in the axial direction are provided with a plurality of vent pipes (16) passing an inner circle to an outer circle of the rotary core (12); a linear pipe part (17) is arranged between positions having a regulated semidiameter from the rotary center of the rotary shaft (11) and the plurality of groovings (13) in the vent pipes (16); a position, far away from the vent slot (15), between an inner side of the linear pipe part (17) and the outer periphery of the rotary shaft (11) in each vent pipe (16) is provided with an arc pipe part (20) along the periphery of the rotary shaft (11).

The invention provides a supporting device and a supporting method for a solid rocket motor end combustion charge, which belongs to the technical field of solid rocket motor manufacturing, and specifically includes a combustion chamber and a charge connected to the inside of the combustion chamber, the outer surface of the charge and the combustion chamber. A support is arranged between the indoor surfaces; the support includes a bottom support plate and a side support plate, the bottom support plate is arranged on the head of the grain column, and the side support plate is arranged on the outer side of the grain column, the bottom support plate and the side support plate are right and left connected. Utilizing the support device of the present invention for solid rocket motor end-face burning grains can ensure the integrity of the grains and the safety of the solid rocket motor during operation, and at the same time have the effects of buffering and stress releasing on the grain surface, which can be well improved The stress of the grain column.

The invention discloses a double-insurance high-pressure ventilated reaction kettle with external reinforcing ribs, which comprises a kettle body and a kettle cover, wherein the kettle cover is provided with an explosion-proof valve; the outer wall of the kettle body is provided with an annular groove; annular reinforcing ribs are arranged in the annular groove; a pressure release pipe opening is arranged on the side part of the kettle body; the air inlet of a pressure release tank is communicated with a pressure release pipe opening through a valve; and the bottom part of the kettle body is provided with an inflating and bubbling device. The reaction kettle has a simple structure, is easy to implement and improves safety.

The invention relates to the technical field of additive manufacturing, and discloses a seeding tray device based on three-dimensional printing technology, which includes a fixed frame, and a control platform is fixedly connected to the bottom of the inner cavity of the fixed frame, and the inner cavity of the control platform The top of the L-shaped protective plate is fixedly clamped, and the number of the L-shaped protective plate is two. The seed tray device based on three-dimensional printing technology, through the cooperation between the filling device, the discharge device and the position regulator, uses the discharge pipe to fill the discharge device, so that the airflow generated by the inflatable device can be discharged smoothly. And the ventilation is uniform. The angle between the two ends of the opening of the arc-shaped protective filter plate and the center of the disc is 60 degrees, and the division of the disc interval by the S-shaped partition is convenient for the seeds in the disc to be separated. It flows into the V-shaped groove under the combined action of its own gravity and airflow, so the seed arrangement process is simple, and the effect of evenly arranging seeds by the seed arrangement tray device is improved.

The invention discloses a gas purification type reagent cabinet capable of adjusting air distribution by sensing, comprising a gas purification part and a reagent placing part, wherein the gas purification part comprises a negative pressure air fan, an air outlet arranged above the negative pressure air fan, and an air inlet arranged below the negative pressure air fan, the reagent placing part comprises a rear wall, a front door, and a plurality of reagent placing platforms located between the rear wall and the front door, the rear wall is provided with an air distribution channel, the reagent placing platforms divide the reagent placing part into a plurality of unit layers, each unit layer is provided with an air distribution opening communicated with the air distribution channel, an optoelectronic switch and a solenoid valve, each optoelectronic switch is arranged on the rear wall and is toward the front door, the solenoid valves are arranged at the air distribution opening, when one optoelectronic switch senses a reagent, the corresponding solenoid valve is controlled to be opened, and otherwise the corresponding solenoid valve is closed. By adopting the gas purification type reagent cabinet, the air distribution condition can be adjusted according to placing positions of drugs in the reagent cabinet.