100results about How to "Solve ventilation problems" patented technology

The invention discloses an intelligent indoor temperature adjusting system. The intelligent indoor temperature adjusting system comprises an intelligent fan unit, an intelligent window unit and a user control unit. Firstly, a pyroelectric infrared detecting module and a temperature sensing module are adopted by the system to control the opening and the closing of an intelligent window and turning off and turning on of an intelligent fan according to the temperature of an environment so that the ventilation problem caused after an air conditioner is turned off in a timed mode can be solved, and the trouble that people wake up due to stuffiness after the air conditioner is turned off can be relieved; secondly, the speed of the fan is intelligently adjusted, the situation that people get ill due to the fact that too much air is blown to people is effectively avoided, whether a user is close to the fan or not can be automatically detected at the same time, if the user is not within a detection area, and the fan will be automatically turned off so as to achieve the energy-saving purpose; finally, the system achieves the sound control function, voice prompts of the user can be identified, relevant action is made, thievery prevention conducted after the window is opened is achieved with a pyroelectric infrared detecting method, the window is closed in time, and the safety of lives and properties is guaranteed.

The present invention discloses a wind generator which has the function of a ventilator and belongs to the technical field of the generator. The wind generator comprises a stand, a nut, a generating set, a ball support, a principal axis, a rotary vane, an upper ball support, a rainproof cap, a main bearing, a flow guide plate, a dustproof cover, etc. The wind generator is characterized in that the upper part of the ball support is provided with a wind wheel; the generating set is manufactured by the overlapping combination of a stationary plate and a movable plate; the principal axis fixes the stationary plate which is equipped with a magnetic field winding and the movable plate which is armored with a permanent magnet in series; air and wind push the rotary vane and the movable plate to operate; the magnetic line of the permanent magnet of the movable plate cuts the winding of the stationary plate to produce electromotive force to be adjusted by a regular circuit to output electric energy, which solves the ventilation problem of a house without consideration and independently supplies electricity to the user for free. If the housing buildings of all country are all equipped with the wind generator, the energy-saving effect and the economic benefit are very optimistic, which has the effect of getting twice the result with half the effort for relieving the steadily increased city electricity consumption at present.

The invention discloses a method for constructing and ventilating three parallel tunnels. The three parallel tunnels comprise a parallel adit (1), a left-lane forward cave (2) and a right-lane forward cave (3); by a single-entrance parallel construction process, transverse passages (4) for communicating adjacent tunnels are arranged between the adjacent tunnels; by a mixed ventilation way that pressed ventilation and lane ventilation are combined, ventilation equipment adopts an axial flow fan (7); the axial flow fan (7) is connected with air ducts (8); the air ducts (8) are arranged inside the parallel adit (1), the left-lane forward cave (2), the right-lane forward cave (3) and the transverse passage (4); air walls (10) are arranged at the transverse passage (4) entrances of the parallel adit (1) for isolating fresh air (5) from dirt air (6); the parallel adit is constructed in advance, and the parallel adit is taken as a fresh air inlet lane to form the lane ventilation; according to construction progress, the axial flow fan and the air duct which are arranged inside the parallel adit are moved forward timely; the left-lane forward cave and the right-lane forward cave exhaust the dirt air; a jet fan (9) is additionally arranged at a proper position.

The invention discloses a vibration-isolated construction method for a ventilation air-conditioning machine room. The method comprises steps as follows: a damper spring shock absorber and a steel reinforced concrete hybrid structured base are added below a refrigerating unit, a water inlet pipeline and a water outlet pipeline obtain horizontal vibration-proof support through a steel frame support structure, a fresh air pipeline is hoisted and mounted in a vibration isolation manner, acoustical board construction is performed on both the wall surface and the top surface, and a soundproof and fireproof door is mounted. The vibration-isolated construction method has the benefits as follows: vibration isolation supports are arranged independently for different pipelines, and collision with other pipelines can be avoided; the noise can be reduced by 24 dB effectively, the noise in the machine room is only about 32 dB, and the vibration and noise reduction effects are obvious; mounting and dismounting are convenient, construction is easy, the cost is lower, indoor air ventilation is solved effectively, ordered and effective ventilation is realized, indoor polluted air is treated rapidly and economically, and the method is particularly suitable for places with higher air quality requirements, more people activities and higher ventilation rate and requiring air change and circulation.

The invention discloses a home kitchen fresh air system. The home kitchen fresh air system is composed of a filtering device (1), an air supplement fan (2), a sensible heat exchanger (3), a purification device (4), a smoke exhaust ventilator (5), a check valve (6), a cooking bench air port (7), a refrigerating chamber inner unit (8), a refrigerating chamber outer unit (9), an air supplement duct (10), a control module (11), pipelines and valves. Fresh air fed by the fresh air system enters a kitchen through air ports formed in the periphery of a table top of a cooking bench and works with the smoke exhaust ventilator coordinately, organized air feeding and exhausting are formed in the cooking range area, thus, the purpose that outdoor particulate pollutants are kept out is achieved while discharging of home kitchen pollutants is accelerated, and the suitability degree of the indoor temperature of the kitchen is increased in an energy-saving mode.

The invention provides an ultrahigh-energy single-detonation ignition device with the energy capable of being adjusted within a wide range and a control method thereof. The ultrahigh-energy single-detonation ignition device comprises an energy storage capacitor set, a direct-current stabilized power source, a protective resistor, a direct-current boosting module, a voltage monitoring module, an ignition relay, a discharging relay and an ignition module. After sufficient energy is stored in the energy storage capacitor set of the device, breakdown of gaps between interval-adjustable ignition needles is achieved by conducting transient discharge, and thus high-energy ignition and direct detonation of detonating combustion are achieved. Compared with a traditional high-energy ignition system, the ultrahigh-energy single-detonation ignition device is simple in structure and high in safety, the ignition energy adjustment range is wide, the highest ignition energy can reach hundreds of Joules, and the ultrahigh-energy single-detonation ignition device can be applied to the field of micro-scale and ordinary-scale detonation study.

The invention relates to a multi-layer chain combined continuous drying system. The multi-layer chain combined continuous drying system comprises a swinging charging machine, a chain type multi-layermesh belt and a heat pump drying room, wherein a material shifting mechanism, a material overturning mechanism and a brush roller; the heat pump drying room comprises a closed drying chamber and a heat pump machine set; and the drying chamber is divided into an upper layer wind chamber and a lower layer wind chamber by a partition board which is horizontally arranged. According to the multi-layerchain combined continuous drying system disclosed by the invention, the swinging charging machine and the material shifting mechanism are arranged, so that the problem that the thickness of a materiallayer on the transporting mesh belt is uneven can be effectively solved; the ventilation problem of the material layer is solved from an inner respect and an outer respect by the material overturningmechanism and the brush roller of the drying system, so that the dehumidifying effect is strengthened; through the specific arrangement of the chain type multi-layer mesh belt and the direction of ahot air current of the heat pump, and a recycle gas loop separated by the partition board of the drying chamber, the purpose that the wind speed and wind capacity of hot gas in the drying chamber areuniformly distributed is guaranteed; the quality of the dried materials is guaranteed by the heat pump machine set in the heating manner of being close to natural drying; and the heat pump machine sethas the excellent properties of being energy-saving and environmental-friendly.

The modern potted landscape of the present invention is one perfect combination of garden technology and industrial technology. The flower pot produced through modern molding process has no mouth for planting, some opening for the plant stem to grow out and to form one overall landscape, and permeating structure for providing the roots of plant with nutrients. The modern potted landscape may be in different shapes, and is clean and environment friendly.

The invention relates to the field of doors and windows, in particular to a photovoltaically powered ventilating window, which comprises hollow glass, a ventilating box and a battery bin, which are embedded in a window frame, wherein a solar battery is arranged in an inner cavity of the hollow glass; a sound absorption material fills the inner side of the box body of the ventilating box; a mosquito filter net, a high voltage electrostatic dust collection net and a direct-current cross flow fan are sequentially arranged in the ventilating box; the outer and inner walls of the ventilating box are provided with an air inlet and an air outlet which are staggered; an infrared receiver, a photovoltaic controller and a storage battery are arranged in the battery bin. The air entering through the air inlet has the quality obviously improved and the ventilating efficiency is high; meanwhile, the air inlet and the air outlet are arranged in a staggered way, a noise reduction effect is greatly improved, an indoor physical environmental requirement can be met, power for all the parts comes from a solar panel, the solar panel fully absorbs solar energy, the solar energy is converted into electric energy, and the photovoltaically powered ventilating window has the characteristics of safety, convenience, sustainability, environment friendliness and energy conservation.

The invention discloses a method for ventilation-assisting roadway arrangement and surrounding rock stabilizing control in the later period of coal mining, belonging to a method for mine ventilating system optimization and roadway arrangement. The method comprises the steps of (1) determining and arranging section coal pillars of roadways for assisting ventilation namely air inlet or air return; (2) analyzing the stability of the section coal pillars; (3) optimizing roadway arrangement schemes in the section coal pillars; (4) determining a technical scheme for reasonable roadway supporting. Aiming at the problems that in the later period of coal mining, a ventilating line is long, ventilation resistance is great, and air loss is great, the method is characterized in that the ventilation-assisting roadways are arranged in the section coal pillars in a left area of a gob, so as to shorten the length of the mine ventilating line length and reduce air loss, and has the advantages of greatly shortening the ventilating line length and reducing air loss by arranging the ventilation roadways in the section coal pillars in the left area of the gob, meanwhile improving a resource extraction rate and increasing the economic benefit of an enterprise by more extracted coal in roadway construction, meeting the need of safe mine production, and achieving obvious technical and economic benefits.

The invention discloses a method for producing an organic fertilizer by a fermentation method. The organic fertilizer is produced through the following steps: adding an organic material ageing reagent in the prior art into livestock manure serving as a raw material and mushroom slag, unite bran and humic acid serving as auxiliaries, evenly stirring, ventilating through artificial air blast for pilling fermentation and post-ripening, and packaging a finished product. The method is characterized in that the fermentation is slope type fermentation which is as follows: a fermentation groove is built on a slope, the fermentation groove with multiple slope staggered layers is built by utilizing hillside terrain, a 'cliff' formed by slope staggered layers which are adjacent is used as a ventilation channel, and an air blower is installed outside for air blowing oxygen, so as to form a static aeration system. According to the invention, the livestock manure is used as the raw material, and the organic fertilizer is produced by using the fermentation method, thus the method disclosed by the invention has the advantages that the investment is saved, the fermentation operation is convenient,sterilization and deodorization are complete, no secondary pollution is generated, humification and harmless degrees are high, the product quality is good, the production efficiency is high, and the popularization is easy.

The invention discloses a steeply inclined thick coal seam horizontal subsection small short-wall fully mechanized caving mining method. The method comprises the following steps of 1, arranging a working face roadway, specifically, dividing a coal seam into a plurality of horizontal subsections along the inclination direction, arranging the working face stoping roadway, forming ventilation systemson the two sides of the stoping roadway, forming a coal conveying system on an air inlet side and forming a gob-side air return roadway in a gob; and 2, performing stopping, specifically, adopting acoal roadway fully-mechanized excavating machine for coal falling, arranging two traction supports in the advancing direction of a working face, arranging two coal caving supports perpendicular to thetraction supports, punching deep holes in the working face stoping roadway before coal caving to conduct presplitting on top coal, after presplitting, firstly pulling and moving the two traction supports, forwards pulling and moving two coal caving supports at the same time, enabling the second coal caving support to achieve coal discharging by 1 / 3 after the first coal caving support is used forachieving coal discharging by 1 / 3, repeatedly executing the steps alternately, stopping coal caving when gangue accounts for a half of the coal caving amount. The method has the advantages of being reasonable in design, easy and convenient to construct, high in coal recovery rate and safe in mining process.

The invention belongs to the technical field of universal airplane wing fuel tank ventilation and relates to a two-way ventilation device for a universal airplane wing fuel tank ventilation system. The two-way ventilation device is of a pure mechanical structure and is mainly composed of a shell, a valve assembly, a spring and the like. The airplane climbing exhausting function and the function that a valve is opened to supplement air when negative pressure exists in a fuel tank in the descending process can be achieved. When an airplane rolls and flies at a large angle, the valve assembly is closed, and therefore the problem that a large amount of fuel of the fuel tank leaks through a ventilation pipe is solved.

The invention discloses a hybrid power railway vehicle. The hybrid power railway vehicle comprises a vehicle body, an internal combustion engine generator set and a super capacitor module which are used for providing hybrid power for the railway vehicle, a rectifier and a converter. The internal combustion engine generator set, a super capacitor, the rectifier and the converter are all arranged atthe bottom of a floor of the vehicle body. At least one ventilation device is arranged in the vehicle body, the super capacitor module is provided with the same number of air inlets as the ventilation devices, and the air inlets communicate with the ventilation devices. When devices need repair and maintain, maintenance personnel is not required to climb and climbing auxiliary devices are not required, maintenance is carried out by directly entering the bottom of the vehicle body, the maintenance of power equipment is extremely convenient, the maintenance efficiency is improved, and the maintenance cost is reduced. At the same time, the super capacitor module is well ventilated and dissipated by the ventilation devices. The hybrid power railway vehicle guarantees the normal operation of the super capacitor, and solves the problems that equipment maintenance is difficult.

The invention discloses an underwater pipeline transportation system and an erection method thereof. The underwater pipeline transportation system comprises a first platform, a second platform, an underwater bridge structure, a pipeline and a vacuum pumping system. The underwater bridge structure is erected under water in a matched mode for supporting the pipeline. The pipeline is erected on the under bridge structure in a matched mode and is located between the first platform and a second platform for providing an underwater running channel for vehicles so as to enable the vehicles to be as transport carriers between the first platform and the second platform to move forwards in the underwater running channel. The vacuum pumping system is arranged in fit with at lest one of the first platform, the second platform and the pipeline for carrying out vacuum pumping treatment in the pipeline so as to achieve a vacuum state in the pipeline. According to the technical scheme, the disadvantages of great environmental impact, high cost and low reliability in the prior art can be overcome, and the beneficial effects of being unaffected by the weather, low cost and high reliability are realized.

The patent discloses a solar driven heat-insulation ventilating and lighting system with a curtain wall combined with an underground space. The solar driven heat-insulation ventilating and lighting system with the curtain wall combined with the underground space comprises an outer-layer curtain wall (1), an inner-layer curtain wall (2), an adjustable louver air vent (3), a curtain wall interlayer (5), an air vent (4), an underground space (6), an underground space entrance-exit (7), a steel keel (8) and a floor plate (9), wherein the adjustable louver air vent (3) is arranged in the top of the outer-layer curtain wall; the curtain wall interlayer (5) is formed by the inner-layer curtain wall and the outer-layer curtain wall; the air vent (4) is arranged in the floor plate between the bottom of the curtain wall interlayer and the underground space; the steel keel (8) is used for connecting the inner-layer curtain wall with the outer-layer curtain wall; the floor plate (9) is used for supporting the inner-layer curtain wall and the outer-layer curtain wall. By using the system, a basement and the curtain wall interlayer are enabled to communicate with outdoor air, the air vent is opened in summer to form a natural ventilation to take away heat, and is closed in winter to form a heat-preserving air layer for reducing heat loss, and the lower air vent (4) facilitates the lighting, the ventilating and the aerating of the underground space. By using the solar driven heat-insulation ventilating and lighting system with the curtain wall combined with the underground space, the properties of heat preservation in winter and heat insulation in summer are enhanced, meanwhile, the ventilation and aeration properties and the illumination condition of the underground space are improved, the energy consumption of a building can be reduced, the comfort degree of a human body can be effectively improved, and the solar driven heat-insulation ventilating and lighting system with the curtain wall combined with the underground space is generally applicable to a double-layer curtain wall building with the underground space.

The invention discloses an underground large-scale cave depot group network gallery type construction and ventilation method, comprising the following steps: establishing a ventilation model taking an existing vertical shaft as a fresh air inlet and taking a construction channel hole as a vitiated air exhausting hole; selecting types of draught fans needed by different cave sections according to ventilation distances of the cave sections, total required airflow of the cave sections, total ventilation resistance in the cave sections and motor power of axial flow draught fans; finally, blocking all the transverse construction channel holes, except the vitiated air exhausting holes, of the cave sections, so as to prevent air flow from short circuit. According to the method disclosed by the invention, a most suitable draught fan quantity and draught fan type are provided for the cave sections with the different ventilation distances and the existing vertical shaft is used as the fresh air inlet, so that the ventilation effect of cave depots can be improved, the consumption of energy sources is also reduced and the construction investment cost is reduced.

The lane type apartment building has on one or two sides of the public stairway several apartments with great depth and single bay. Each of the apartments includes two storeies, including the lower storey with household door and roomy public corridor to form lane type living environment, and the upper storey without public corridor. The present invention has less public stairways, high land utilization rate, lowered comprehensive construction cost and other advantages.

The invention provides a ventilation cabinet which comprises a cuboid cabinet frame, a cabinet top cover plate, a cabinet bottom plate, a left cabinet plate, a right cabinet plate, a rear cabinet plate and a cabinet door. The cabinet door is arranged on the front side of the cabinet, a baffle is arranged between a front plate and a rear plate in the cabinet and divides the cabinet into a left side and a right side, the rear cabinet plate is provided with at least one ventilation door, the ventilation doors are connected with the rear cabinet door through hinges, a ventilation channel is formed in the baffle, clothes hangers are arranged on the upper portion of the left side and on the upper portion of the right side of the cabinet, a plurality of drawers are arranged in the middle of one side of the cabinet, and trouser frames are arranged on the lower portions of the drawers. The are least one ventilation door is arranged on the rear cabinet door, and the ventilation channel is formed in the baffle, so that the ventilation problem of the cabinet and the interior of a room is solved. The ventilation cabinet is simple in structure, convenient to use and practical, energy is saved, and cost is lowered.

The invention discloses an exhaust device for a kitchen. The exhaust device for the kitchen comprises a protective cover, fan blades, a screw cap, a rear shell, shutters, a motor and an electrical control cabinet. A front shell is arranged at one end of the protective cover, the rear shell is arranged at one end of the front shell, and the rear shell is provided with shell bolts and the shutters.The motor is arranged at one ends of the shutters, the motor is provided with motor bolts, and a motor shaft is provided with the fan blades. The screw cap is arranged at the front ends of the fan blades, an oil receiving tank is arranged at the lower end of the protective cover, a buzzer is arranged at one end of the oil receiving tank, an independent key switch is arranged at the lower end of the rear shell, and a carbon monoxide detector is arranged in the electrical control cabinet. The exhaust device for the kitchen has the beneficial effects that the content of carbon monoxide can be detected to prevent people from carbon monoxide poisoning, and the exhaust device plays roles in solving high temperature, stuffiness, ventilation, air exchange and particular shell removal of the interior of the kitchen and plays a role in interior and outdoor fresh air circulation of the kitchen.

The invention discloses an assembly type wall with ventilation and air exchange functions and application thereof. According to the assembly type wall with the ventilation and air exchange functions provided by the invention, a cavity is arranged in the wall; an inner wall of the wall is provided with at least one first through hole; an outer wall of the wall is provided with at least one second through hole; the cavity, the first through hole and the second through hole are intercommunicated. The assembly type wall with the ventilation and air exchange functions provided by the invention canbe applied to an assembly type building, so that indoor ventilation of the assembly type building are realized, the problems of indoor ventilation of the assembly type building at an airtight state are effectively solved, meanwhile, indoor energy can be ensured to be prevented from being lost excessively, and energy conservation and environmental protection are realized. The invention also provides a method for replacing indoor fresh air in the building. According to the method provided by the invention, indoor ventilation of the building at the airtight state can be realized.

The invention discloses a novel intelligent control system for a power distribution cabinet. The interior of the cabinet body is provided with a separator plate, and the separator plate is provided with vent holes. The separator plate is of an elastic telescoping structure, and has various forms. The interior of the cabinet body is also provided with an illumination unit which is disposed on a side surface, close to the bottom surface of the cabinet body, of the separator plate; a detection unit which is used for detecting the opening or closing state of a cabinet door; an adjustment unit which is used for adjusting the form of the separator plate; and a control unit which is used for obtaining the state of the cabinet door through the detection unit, and controlling the operation of the illumination unit and the adjustment unit according to a state instruction of the cabinet door. The interior of the cabinet body is provided with the separator plate with the alterable form and the illumination unit, and the state of the separator plate and the illumination mode of the illumination unit are adjusted according to the opening or closing state of the cabinet door, thereby solving an illumination problem when the cabinet door is opened and a ventilation problem when the cabinet door is closed. Meanwhile, when the cabinet door is opened, a platform for placing tools is provided fora worker, and a complete and convenient use environment is provided for the worker during the maintenance of the power distribution cabinet.

The invention relates to an energy-saving ventilation method, in particular to an energy-saving ventilation method for a basement of a magnetic stirring device. In the method, a wind pumping and conveying line of other wind pumping and conveying equipment and equipment needed to be cooled are connected into a whole; the wind pumping and conveying of other wind pumping and conveying equipment is utilized to transporting fresh and cold air to the equipment needed to be cooled to reduce the temperature of the equipment needed to be cooled. In particular, the basement of the magnetic stirring device and a fan room of combustion-supporting wind are connected into a whole; the fresh and cold air is pumped to the basement of the magnetic stirring device by utilizing the wind pumping of a combustion-supporting fan of a smelting furnace and reduces the temperature of the basement; at the same time, high temperature air in the basement is used as preliminarily preheated combustion-supporting air and is pumped to a combustion-supporting wind pipe. The energy-saving ventilation method solves the problems that the basement of the magnetic stirring device adopts mechanical and forced ventilation and has high energy consumption, improves the preheating effect of the combustion-supporting wind and meets the requirements on energy saving and consumption reduction.

A case board paper perforating machine comprises a support. Conveying belt rollers are arranged at the two ends of the support, conveying belts are arranged on the conveying belt rollers in a tightening mode, a clearance is reserved between the conveying belts, a bottom cutter is fixedly arranged in the clearance, a needle knife is arranged over the bottom cutter, the needle knife and the bottom cutter are closely attached when the needle knife and the bottom cutter are in butt joint and contact, the upper end of the needle knife is fixed with a telescopic rod, and the telescopic rod is fixedly arranged on an arch-shaped frame supported above the conveying belts. The top end of the needle knife is fixedly arranged on a fixed boss ring, a forested layer is arranged on the inner side of the fixed boss ring, and a fixed pipe is arranged at the upper end of a fixed boss. The needle knife is formed by fixing more than two narrow blades in the fixed boss ring, and the width of the narrow blades is matched with the clearance between the adjacent narrow blades. When the telescopic rod stretches to the longest distance, the needle knife surrounds the bottom cutter, and the cutter edge of the bottom cutter is in break-in with the forested layer. Through the case board paper perforating machine, the pressing prints of holes can be manufactured on case board paper mechanically and continuously, the case board paper in the holes exists, and the case board paper in the holes can be selected to be removed or retained according to use condition needs.

The invention discloses a home kitchen fresh air system. The home kitchen fresh air system is composed of a filtering device (1), an air supplement fan (2), a sensible heat exchanger (3), a purification device (4), a smoke exhaust ventilator (5), a check valve (6), a cooking bench air port (7), a refrigerating chamber inner unit (8), a refrigerating chamber outer unit (9), an air supplement duct (10), a control module (11), pipelines and valves. Fresh air fed by the fresh air system enters a kitchen through air ports formed in the periphery of a table top of a cooking bench and works with the smoke exhaust ventilator coordinately, organized air feeding and exhausting are formed in the cooking range area, thus, the purpose that outdoor particulate pollutants are kept out is achieved while discharging of home kitchen pollutants is accelerated, and the suitability degree of the indoor temperature of the kitchen is increased in an energy-saving mode.

The invention discloses a ventilation method for long-distance high-gas tunnel construction. The method comprises the following steps that S1 a first air duct is arranged at a hole of a positive hole, and a second air duct is arranged at a hole of a parallel guide hole; S2 a third air duct extends to the ahead of the positive hole tunnel face to supply air; S3 the first air duct is used for supplying air to the positive hole tunnel face, the second air duct is used for supplying air to the parallel guide hole tunnel face, and the third air duct extends to the ahead of the positive hole tunnel face to supply air; S4 the first air duct is used for supplying air to the positive hole tunnel face, the second air duct is used for supplying air to the parallel guide hole tunnel face, the third air duct is used for supplying air to the ahead of the positive hole tunnel face and a fourth air duct extends to the ahead of the positive hole tunnel face to supply air; S5 the second air duct is used for supplying air to the parallel guide hole tunnel face, the fourth air duct is used for supplying air to the ahead of the positive hole tunnel face and the third air duct extends to the ahead of the positive hole tunnel face to supply air; S6 the third air duct is used for supplying air to the positive hole tunnel face and the fourth air duct extends to the ahead of the positive hole tunnel face to supply air. According to the ventilation method for long-distance high-gas tunnel construction, the ventilation efficiency is optimizes, the problem of tunnel ventilation is solved, the transport capacity is strengthened and the construction efficiency is improved.

The invention provides an ultra-thin coal seam longwall mining method based on an N000 construction method, and relates to the technical field of mining. The ultra-thin coal seam longwall mining method includes the steps that advancing operation is performed on a working face in the direction perpendicular to the working face to form a first roadway, and the first roadway is supported to form a first gate road; an advance working area is formed in the first gate road; coal mining machines are adopted to simultaneously mine coal in the advance working area in the direction parallel to the working surface towards both sides of the first gate road, and a mined coal body is transported to a scraper conveyor; when the coal mining machine located on one side of the first gate road runs to a first preset position, the working face is blasted to form a second roadway, and the second roadway is supported to form a second gate road; and when the coal mining machine located on the other side of the first gate road runs to a second preset position, the working face is blasted to form a third roadway, and the third roadway is supported to form a third gate road. According to the ultra-thin coalseam longwall mining method based on the N000 construction method, roadway tunneling in advance can be avoided, the coal mining cost is reduced, the coal mining efficiency is improved, and the wasteof resources is avoided.

The invention discloses an environment controller for raising chickens and an oxygen detection control method. The oxygen controller jointly controls two parameters, namely, a temperature and an oxygen content, so as to control the operation of an auxiliary heating machine and a fan according to numerical values returned by sensors, so that the temperature and the oxygen content in a closed space are ensured to stay in a set value range. The oxygen content is controlled at 19.5 to 20.5 percent, which is an oxygen content range most suitable for the growth of the chickens.