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98results about How to "Meet Ventilation Needs" patented technology

Long tunnel fast construction process

The invention discloses a long tunnel fast construction process. The tunnel construction method in the direction from the entrance to the exit and the tunnel construction method in the direction from the exit to the entrance are the same and each construction section is respectively constructed from back to front. The construction process is as follows: 1, excavating construction at an initial construction section, the process is as follows: performing advance geology forecast, determining the excavating construction method for the current construction section, excavating and primary supporting; 2, excavating construction at the next construction section; 3, repeating the step 2 for multiple times until the construction tunnel is through, wherein in the tunnel construction process, found water seepage areas are timely subjected to draining treatment, and the secondary lining construction is synchronously performed on the tunnel holes formed by excavating from front to back. The long tunnel fast construction method is reasonable in design, simple and convenient in construction, safe in the construction process, short in construction process and fast in construction progress, thus effectively solving the defects and shortcomings such as large equipment investment, long construction period and slow construction progress of the existing long tunnel construction.
Owner:中铁二十局集团第二工程有限公司

Water-rich weak surrounding rock long-and-big tunnel construction method

The invention discloses a water-rich weak surrounding rock long-and-big tunnel construction method. The method includes that a tunnel inclined shaft is arranged on one side of a main tunnel of a tunnel to be constructed, the main tunnel is divided into a tunnel entry section, a tunnel exit section and a middle connecting section connected between the tunnel entry section and the tunnel exit section, the middle connecting section is divided into an inclined shaft assisting construction entry section and an inclined shaft assisting construction exit section, and each of the tunnel entry section, the tunnel exit section, the inclined shaft assisting construction entry section and the inclined shaft assisting construction exit section is divided into multiple sections for construction. A construction method of each section includes: step 1, performing geological forecasting in advance, and when a debris flow formation exists ahead, entering a step 2, or else, entering a step 3; step 2, performing stability control construction; step 3, determining a primary supporting scheme; step 4, excavating the tunnel, and performing primary supporting construction; step 5, performing secondary lining construction on the tunnel. The water-rich weak surrounding rock long-big tunnel construction method is simple in step, reasonable in design, simple and convenient to construct, good in using effect, capable of meeting construction requirements of water-rich weak surrounding rock long-and-big tunnels, short in construction period and safe in construction process.
Owner:CHINA RAILWAY 20 BUREAU GRP

Rotating type plant wall body suitable for multi-story or high-rise buildings

ActiveCN104088380AMeet Ventilation NeedsMeet the needs of diversified layoutWallsWatering devicesGreen wallBody system
The invention discloses a rotating type plant wall body suitable for multi-story or high-rise buildings. The rotating type plant wall body suitable for the multi-story or high-rise buildings is composed of a frame body system composed of a plurality of frame body units 1, a drop irrigation water supplying system composed of a plurality of drop irrigation water supplying units 2, and a plurality of box-packed plant drawer units 3. Each frame body unit 1 can be opened in a unidirectional rotating mode through a plane bearing 6 and is closed and locked in the left-and-right direction through a T-shaped bolt lock 8. The drop irrigation water supplying system is formed by vertically connecting the drop irrigation water supplying units 2 in all the frame body units 1 in series, and a plurality of sets of transverse branch pipes 14 in the drop irrigation water supplying system supply water to herbaceous plants 17 in all the box-packed plant drawer units 3. The box-packed plant drawer units 3 are arranged in the frame body units 1 through supporting type guide wheel sliding grooves 5, and the frame body units 1 can be drawn out after rotating to clip and replace the internal herbaceous plants 17. According to the rotating type plant wall body suitable for the multi-story or high-rise buildings, airtightness and safety when the greening wall body is applied to the multi-story or high-rise buildings and operability in the plant replacing process are achieved.
Owner:CHONGQING UNIV

Air-conditioning system for metro and control method thereof

The invention discloses an air-conditioning system for a metro and a control method thereof and belongs to the technical field of metro air-conditioning control. The control method comprises the following steps: acquiring environment parameters during the operation process of the air-conditioning system; determining one of ventilation modes, which comprise a small fresh air mode of delivering mixed air of indoor return air with outdoor fresh air to indoor areas and a full fresh air mode of delivering the outdoor fresh air to the indoor areas, of the air-conditioning system based on the environment parameters; and controlling the air-conditioning system to switch to the determined ventilation mode. The control method of the air-conditioning system for the metro is capable of determining the ventilation mode adapting to the current situation according to the relevant external environment parameters of the metro. By virtue of the switching between the small fresh air mode and the full fresh air mode, the control method of the air-conditioning system for the metro has the advantages of allowing the ventilation control of the air-conditioning system for the metro to meet the ventilation needs under the current condition, improving the using experience of passengers in public areas of the metro, reducing the operation energy consumption of the air-conditioning system for the metro and reducing the operation cost of the air-conditioning system for the metro.
Owner:QINGDAO HAIER AIR CONDITIONING ELECTRONICS CO LTD

Ventilating system for cross infection preventing closed animal house

The invention relates to a ventilating system for a cross infection preventing closed animal house. The ventilating system is characterized by comprising an air supply system and an air return system, wherein the air supply system is arranged at the inner roof of the animal house, and the air return system is arranged at the lower parts of two side walls; the air supply system comprises an air supply fan connected to the outer part of the animal house, one end of an air supply main is connected with the air supply end of the air supply fan, and the other end of the air supply main is communicated with a plurality of branched air supply pipelines which are arranged on the roof and are arranged in parallel in a length direction and air outlets are formed in the side walls of the branched air supply pipelines; the air return system comprises an air return fan connected to the outer part of the animal house, one end of an air return main is connected with a certain end of the air return fan, and the other end of the air return main is communicated with two branched air return pipelines which are arranged at the lower parts of the two side walls in parallel and are arranged in a length direction, and exhaust holes are formed in the side walls of the branched air return pipelines. According to the ventilating system provided by the invention, the air supply system is arranged in the animal house and the air return system is arranged at the lower parts of the side walls, therefore the ways that clear air enters in the upper part of the animal house and dirty gas is exhausted from the lower part of the animal house can be realized, and the longitudinal and transverse cross infection of bacteria of the animal house can be effectively prevented.
Owner:CHINA AGRI UNIV

Double-track tunnel provided with vertical shaft smoke discharge and ventilation combined and complemented system

The invention discloses a double-line tunnel with a vertical shaft smoke exhaust combined with a complementary ventilation system, comprising a double-line tunnel, a complementary connecting air duct and a smoke exhaust shaft arranged between the double-line tunnels; an axial flow fan is arranged in the connecting air duct It is used for airflow organization between double-lane tunnels; an axial flow fan is installed in the smoke exhaust shaft; an air duct is provided at the bottom of the shaft to communicate with the up and down tunnels, and a pair of electric air valves are installed in the air duct; the electric fan of the air duct at the bottom of the shaft is installed in non-fire The valve is fully open for natural ventilation; in case of fire, close the electric air valve of the air duct at the bottom of the shaft on the non-fire side tunnel and the air valve and axial flow fan in the complementary contact air duct, and open the axial flow fan in the smoke exhaust shaft for fire exhaust. cigarette. The two-line tunnel of the present invention performs complementary ventilation through the connecting air duct, which can reduce the engineering volume of the ventilation system and the power supply and distribution system, and the smoke exhaust shaft is used for smoke exhaust during fire and natural ventilation during non-fire, thereby reducing the corresponding shaft scale and Reduce project cost, improve operational energy saving and disaster prevention capabilities.
Owner:ZHEJIANG PROVINCIAL INST OF COMM PLANNING DESIGN & RES CO LTD

Method for ventilation-assisting roadway arrangement and surrounding rock stability control in later period of coal mining

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.
Owner:CHINA UNIV OF MINING & TECH

Plateau long tunnel multi-dead end ventilation construction method

The present invention discloses a plateau long tunnel multi-dead end ventilation construction method. A tunnel inclined shaft is disposed at one side of a main cave of a plateau long tunnel, a middle connection section of the main cave is an inclined shaft auxiliary construction section which is divided into an inclined shaft auxiliary construction entrance section and an inclined shaft auxiliary construction exit section, and the inclined shaft auxiliary construction exit section has a sudden surging point and intersects with derious parallel adits. The construction method comprises a first step of ventilator installation; and a second step of tunnel excavation construction, carrying out excavation construction on the inclined shaft auxiliary construction entrance section and the inclined shaft auxiliary construction exit section through the tunnel inclined shaft while carrying out excavation construction on a tunnel entrance section and a tunnel exit section, and assisting the excavation construction through the derious parallel adits while carrying out excavation construction on the inclined shaft auxiliary construction exit section. The method provided by the present invention is simple in procedure, reasonable in design, convenient to construct, excellent in ventilation effect, and capable of solving problems of a large amount of roadways requiring ventilation during a tunnel construction process, long ventilation distance and large difficulties in ventilation construction.
Owner:CHINA RAILWAY 20 BUREAU GRP

Vertical circular spraying chamber applied to powder spray-coating line

The invention discloses a vertical circular spraying chamber applied to a powder spray-coating line. The vertical circular spraying chamber comprises a vertical spraying chamber main body, wherein the spraying chamber main body is formed mainly by defining a front side plate and a rear side plate which are positioned on the front and rear sides respectively; the middle parts of the front and rear side plates are outwards arched to form circular arcs; a feed opening and a discharge opening are formed in the left and right sides of the spraying chamber main body respectively, and are used for the feeding and discharging of a workpiece; an air draft opening connected with an external air draft pipeline is formed in the outwards-arched position of the middle part of the rear side plate. According to the vertical circular spraying chamber, the front and rear side plates define a relatively enclosed space, and the middle parts of the front and rear side plates are outwards arched to form the circular arcs, so that the space in the spraying chamber is enough for the powder spray-coating of the workpiece, the feed opening and the discharge opening in the left and right sides of the spraying chamber are small, the opening area of the spraying chamber is reduced, and the requirements of the spraying chamber on air draft can be met by a relatively low-power draft fan.
Owner:ZHONGSHAN JUNHE ELECTRO MECHANICAL APP

Dust haze preventing energy-saving window

The invention relates to a dust haze preventing energy-saving window, and belongs to the technical field of building. The dust haze preventing energy-saving window comprises a fixed sash and an opening sash, wherein the opening sash is arranged on any side edge of the upper side edge, the lower side edge, the left side edge and the right side edge of the fixed sash and is in a narrow-strip shape. The opening sash is a ventilating sash and comprises an inner window body and an outer window body, the outer window body is a glass window, the window face of the inner window body is formed by sandwiching a filtering cotton layer in a double-layer steel wire gauze, the inner window body is opened inwards, and the outer window body is opened outwards. When the outer window body of the opening sash is opened, and the inner window body of the opening sash is closed, the heat preservation performance of the energy-saving window is equivalent to that of a double-layer glass window, and while the requirement for ventilation of a room is met, it can be ensured that indoor temperature does not fluctuate substantially, which is beneficial to health of people and plants in the room and heat preservation and energy conservation of a building. The dust haze harm is effectively reduced, and dust and mosquitoes are prevented from entering the room. The ventilating performance can fully meet the requirement for ventilation of the room, the ventilation property is 300 mm/s, and therefore the ventilating effect is excellent.
Owner:沈阳港华建设集团股份有限公司 +1

Ship and ship side cabin ventilation method

The invention relates to the field of a ship and discloses a ship and ship side cabin ventilation method. The ship comprises side cabins arranged on two sides of the ship, wherein the side cabins arecommunicated through a transverse water inlet channel, a ventilation device is arranged in each side cabin, one end of an air inlet pipeline of each ventilation device is communicated with the outsideof the ship, a natural air outlet is formed in the other end of the air inlet pipeline of each ventilation device, a natural air outlet gate is arranged at each natural air outlet, one end of an exhaust pipeline of the ventilation device is communicated with the outside of the ship, the other end of the exhaust pipeline is provided with a natural suction opening and a forced suction opening, thenatural suction opening is provided with a natural suction gate, the forced suction opening is provided with a forced suction fan and a forced suction gate, the sum of the circulation area of a natural air inlet channel formed by communicating an end, communicating with the outside of the ship, of the air inlet pipeline and the natural air outlet and the circulation area of a natural air outlet channel formed by communicating the natural suction opening and an end, communicating with the outside of the ship, of the exhaust pipeline is not smaller than 10% of the cross section area of the transverse water inlet channel. On the premise that requirements for forced ventilation and fire closing ventilation are met, the anti-overturning capacity of the ship is improved.
Owner:GUANGZHOU SHIPYARD INTERNATIONAL LTD

Liupao tea drying method

The invention discloses a Liupao tea drying method. The Liupao tea drying method comprises the following steps: A. loosening the fermented Liupao tea piles to obtain tea leaves, spraying fermentation liquor, stirring uniformly, standing for 48 hours, and then drying in a tea drier, wherein the fermentation liquor is prepared by the following steps: adding water and brown sugar into the residual raw tea and carrying out mixed fermentation; the tea drier comprises a metal cylinder body, a metal cylinder cover, a screen, an opening, a vertical shaft, an electrode ring, two copper blocks and an electrode plate, wherein the electrode plate and the electrode ring are both connected with an electrode; the drying step comprises the steps of putting the tea leaves on the screen, putting the screen in the cylinder body; starting the power supply of the electrode, switching off the power supply after one minute, stirring, and performing such operations for three times; then, starting the power supply of the electrode, and standing for 50 minutes, and take the tea leaves out; and B. adding the fermentation liquor to the tea leaves obtained in the step A, stirring uniformly, and standing for 28 days. The Liupao tea drying method can be used for solving the problems of high energy consumption and high processing cost in the existing Liupao tea drying method.
Owner:WUZHOU ZHONGMING TEA IND CO LTD

Orientation distributing device and method for ventilation volume of tunnel construction

The invention discloses an orientation distributing device and method for ventilation volume of tunnel construction. The device comprises a distributing box and a mounting support for horizontally mounting the distributing box; the distributing box comprises a distributing box body of which the front part and the rear part are opened, an air outlet structure arranged at the front side of the distributing box body and an air inlet structure arranged at the rear side of the distributing box body; the air inlet structure comprises left and right air inlet joints which are mounted together; the air outlet structure comprises left and right air outlet joints which are mounted together; the inside of the distributing box body is divided into left and right air supply channels by a separating device; and the separating device is vertically arranged and comprises a separating seat fixed in the distributing box body, a movable door and a swing driving device. The method comprises the following steps: firstly, mounting a ventilation system of a tunnel; and secondly, performing orientation distribution of the ventilation volume. The orientation distributing device disclosed by the invention is reasonable in design, simple and convenient to use and operate and good in service effect; and the ventilation volumes of two tunnel holes in the construction process can be flexibly distributed simply and conveniently, and the utilization rate of ventilation equipment is improved.
Owner:CHINA RAILWAY FIRST GRP CO LTD

Window for railway vehicle, railway vehicle and window mounting method

The invention provides a window for a railway vehicle, a railway vehicle and a window mounting method. The window for the railway vehicle comprises a window frame, an outer blind window and an inner glass window, wherein the window frame comprises an outer frame body and an inner frame body; a flanging structure is formed at the edge of the outer frame body; a retainer ring is formed on the inner ring of the outer frame body; an inserting groove is formed in the outer side wall of the outer frame body; a detachable inserting plate is arranged in the inserting groove; a plurality of threaded holes are formed in the inserting plate; an outer sliding groove and an inner sliding groove, which are arranged in parallel, are formed in the internal side wall of the inner frame body; the outer blind window is arranged in the outer sliding groove in a sliding way; the inner glass window is arranged in the inner sliding groove in a sliding way; brush strips are oppositely arranged in the inner sliding groove; the inner glass window is clamped between the two brush strips; a mounting plate is arranged on the external side wall of the inner frame body; a plurality of mounting through holes are formed in the mounting plate; and the inner frame body clings to the retainer ring in a sealed way. According to the invention, the comfort performance of the window for the railway vehicle in use is improved and ventilation demands of passengers are satisfied on the premise that sealing property of the window is ensured.
Owner:CRRC SIFANG CO LTD

Wood house with courtyard window

ActiveCN104481083AEasy to replaceMeet the needs of ventilationSky-lights/domesLight sensingEngineering
The invention provides a wood house with a courtyard window. A courtyard is formed on a roof of the wood house, wherein a light transmission element is arranged on the courtyard, one end of the light transmission element is arranged on a rotating shaft, the rotating shaft is fixedly arranged on the side wall of the courtyard, the rotating shaft is connected with a rotating mechanism, the other end of the light transmission element is in opening and closing arrangement with the matched courtyard, a light sensing element is arranged on the light transmission element, and is connected with an opening and closing device, a rainwater sensing element is arranged on the light transmission element, and the rainwater sensing element is connected with a rainwater opening and closing device. The wood house has the advantages that a transparent element capable of automatically ascending and descending is arranged in a courtyard part for meeting the lighting requirements, meanwhile, the ventilation requirements in the house can also be met, the comfort degree in the house can be maintained, the requirements of a user are met to the maximum degree, the light sensing element and the rainwater sensing element are arranged on the transparent element, different responses can be made for different weather conditions, various use requirements can be met, and meanwhile, cleanness in the house can also be maintained.
Owner:TECSUN SUZHOU HOME

Vehicle window control method and system

The invention discloses a vehicle window control method and a vehicle window control system. The vehicle window control method comprises step I, acquiring real-time external body feeling temperature and real-time vehicle speed, searching for a corresponding standard vehicle window opening degree from a vehicle window control database according to the real-time external body feeling temperature andthe real-time vehicle speed, and regulating a vehicle window to the standard vehicle window opening degree; step II, acquiring a first vehicle window opening degree within first preset time after thevehicle window is regulated to the standard vehicle window opening degree, and if the first vehicle window opening degree is different from the standard vehicle window opening degree, using the firstvehicle window opening degree as a new standard vehicle window opening degree and updating the new standard vehicle window opening degree to the vehicle window control database; and step III, repeating the step I and the step II at second preset time after the vehicle window is regulated to the standard vehicle window opening degree to realize intelligent control over the vehicle window. The vehicle window control method and the vehicle window control system can regulate the vehicle window opening degree in real time according to the body feeling temperature of the external environment of a vehicle and the vehicle speed; and during regulating, the personalized demand of a user can also be learnt, and thus, intelligent control over the vehicle window is realized, and the driving comfort and safety are effectively improved.
Owner:武汉神动汽车电子电器股份有限公司

Ventilation and dustproof method used for tunnel construction

The invention provides a ventilation and dustproof method used for tunnel construction. The ventilation and dustproof method comprises the following steps that 1, air ducts are arranged at the front of excavation working faces of a flat pilot tunnel, a main hole, and an inclined shaft and move forward with moving forward of each working face; 2, after the main hole is connected with a first transverse passage, a draught fan is arranged at the intersection of the main hole and the first transverse passage, the air ducts are respectively arranged on the second working face and the first workingface of excavation, and a jet flow draught fan is arranged in the flat pilot tunnel to induce airflow to a tunnel opening; and excavation is conducted to the two sides of the main hole after the inclined shaft communicates the main hole; and 3, two transverse passages nearest to the second working face are reserved between the main hole and the flat pilot tunnel, and the draught fan moves with excavation of the main hole to the intersection of the NTH transverse passage and the main hole. According to the ventilation and dustproof method, the air ducts and draught fans are arranged on the fiveworking faces of tunnel construction and excavation for ventilation and circulation, the position is adjusted and a line is laid according to the construction steps by using the air ducts and the draught fans, air duct direction turning and tapoff of the multiple air ducts in a tunnel with the complex structure are realized, and the loss of wind power is greatly reduced.
Owner:THE 2ND ENG CO LTD OF CHINA RAILWAY 17 BUREAU GRP

Rainproof ventilating window

InactiveCN111894427ARegulate flow rateMeet the need for ventilationInsect protectionSpecial door/window arrangementsWindow openingAir change
The invention discloses a rainproof ventilating window, and belongs to the technical field of windows. The rainproof ventilating window comprises a window frame, a window bar, a screen window, louversand an adjusting mechanism, wherein the window bar is arranged in the window frame, the outer side of the window bar is provided with the multiple louvers from top to bottom, one end of the window bar is provided with an adjusting mechanism for driving the multiple louvers to rotate simultaneously, the inner side of the window bar is detachably connected with the screen window, and the end, closeto the adjusting mechanism, of the inner side of the window bar is provided with a control panel for controlling the adjusting mechanism to work to make the multiple louvers rotate a corresponding angle according to weather change. The rainproof ventilating window has the advantages that the multiple louvers and the screen window are arranged on one window bar, the angle of the louvers can be conveniently adjusted according to weather conditions, the window can be opened on windy and rainy days, rain prevention and prevention of the condition that mosquitoes enter a room are achieved, the requirement of indoor ventilation is met, and the louvers and the screen window are convenient to clean and replace.
Owner:ANHUI POLYTECHNIC UNIV MECHANICAL & ELECTRICAL COLLEGE

Riprap temperature control cave for freshness keeping of fruits and vegetables stored in loess plateau

The invention relates to a riprap temperature control cave for freshness keeping of fruits and vegetables stored in the loess plateau. The riprap temperature control cave is structurally characterized in that a soil layer on the top of an existing cave in the loess plateau is dug out, the top of the cave is filled with a dimension stone layer to form a trapezoid shape and an open boundary, the dimension stone grain size is controlled to be 22-30 cm, the strength is 30-35 MPa, and the void content is 25-30%. A waterproof and breathable film is laid on the upper middle portion of the dimension stone layer so that rain can be prevented from falling into the cave. A vertical ventilation chimney is arranged on the dimension stone layer and is vertically 1.5-2 m higher than the top of the cave, the caliber of the chimney is 20-30 cm, and detachable asbestosed wire gauze cloth is laid on the dimension stone layer. The cave for freshness keeping and overwintering of fruits and vegetables is provided according to the characteristics of freshness keeping caves for fruits and vegetables in the loess plateau and through the organic combination with the winter cooling and cold accumulation efficacy of a riprap layer and the chimney effect, and the requirement for overwintering and freshness keeping of fruit and vegetables in the loess plateau region is met; meanwhile, the riprap temperature control cave has the advantages of being low in manufacturing cost, easy to construct and convenient to maintain, solves difficulty and problems in production and life of farmers in the region, and has good social and economic benefits.
Owner:COLD & ARID REGIONS ENVIRONMENTAL & ENG RES INST CHINESE
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