23 results about "Ventilation shaft" patented technology

The invention discloses an energy-saving air conditioning system for a building. The energy-saving air conditioning system comprises a ventilation shaft, a tunnel air pipe, a TLambert wall, a sky radiation layer and a heat storage layer. The heat storage layer is arranged at the top of the ventilation shaft; the TLambert wall is arranged on the sunny side of the ventilation shaft and is relatively close to the top of the ventilation shaft; the sky radiation layer is arranged on the shady side of the ventilation shaft and is relatively close to the bottom of the ventilation shaft; the tunnel air pipe is used for being communicated with or disconnected from the bottom of the ventilation shaft so that temperature difference can be formed in the ventilation shaft and air can be driven to flow from bottom to top. A condensation face is arranged in the ventilation shaft, and the condensation face is located on an air flowing path and used for dehumidifying air. A coupled passive cooling and dehumidifying building energy-saving air conditioning system is formed by tunnel air, sky radiation, a Tembert wall, phase change heat storage and a condensing surface, and the cooling and dehumidifying effects can be achieved by completely depending on renewable low-grade natural energy without mechanical driving such as a fan or a compressor.

This invention provides a ventilation and defogging system for integrated utility tunnel ventilation, relating to the field of ventilation control technology. The system further includes: a circulation pipe assembly fixedly connected to the main body of the utility tunnel and the ventilation shaft; and a mechanical ventilation component, the bottom of which is installed on top of a firewall, and the top of which is inserted into the ventilation shaft. Air within the main body of the utility tunnel is dehumidified and purified by the circulation pipe assembly, and then returned to the interior of the main body of the utility tunnel via the mechanical ventilation component. This isolates the external environment while achieving internal air circulation, dehumidification, and purification within the main body of the utility tunnel, thus optimizing the air quality inside the utility tunnel.

The utility model discloses a portable environmental noise detection device, which relates to the technical field of environmental noise detection and comprises a sensing detection ball, a support telescopic rod, a detector and a connecting wire penetrating through the support telescopic rod to be connected with the sensing detection ball. The other side of the top surface of the detector is provided with an adapter connector, and the adapter connector is connected with one end of a connecting wire in an inserted manner. According to the utility model, through the cooperation of the supporting telescopic rod and the sensing detection ball, the sensing detection ball can conveniently extend into a narrow space, such as a narrow aisle of an old community in a city, a narrow ventilation shaft in a building and the like, for noise detection, and the detection convenience is improved; finally, the problems that a button cannot be accurately touched and effective detection is difficult due to the fact that a traditional handheld device is inconvenient to operate in a narrow space are solved, and the efficiency and convenience of noise detection in the narrow space are improved.

The application discloses a kind of ventilation parameter processing method and system for the whole world water-rich karst tunnel small section multi-shaft, comprising the following steps: determining small section shaft clearance diameter D And single well ventilation capacity, and determine the upper limit of main hole design wind speed to obtain the maximum wind capacity of main hole;Select control need air volume index, calculate the air volume and establish relative index, determine the critical distance L 1 when relative index reaches limit value L First exhaust shaft is arranged near L 1 And downstream air supply shaft constitutes "one exhaust one supply" ventilation unit, according to different section relative index check and iterative arrangement of multiple groups of shafts form shaft group, so that downstream available air volume meets the next partition air volume.The application replaces the traditional large-diameter ventilation shaft by adopting small-section shaft group suitable for mechanized construction, which can reduce the construction risk of shaft in the whole water-rich karst section, reduce the exposure of underground personnel, and improve the engineering applicability and construction safety.

The application discloses a building energy-saving air conditioning system, which comprises a ventilation shaft, an underground air pipe, a Trombe wall, a sky radiation layer and a heat storage layer; the heat storage layer is arranged at the top of the ventilation shaft; the Trombe wall is arranged at the sunny side of the ventilation shaft and is arranged close to the top of the ventilation shaft; the sky radiation layer is arranged at the shady side of the ventilation shaft and is arranged close to the bottom of the ventilation shaft; the underground air pipe is used for being communicated with or being cut off from the bottom of the ventilation shaft, so that the inside of the ventilation shaft can form a temperature difference and drive air to flow from bottom to top; a condensing surface is arranged in the ventilation shaft and is located on an air flow path, so as to dehumidify the air. The building energy-saving air conditioning system is coupled with passive cooling and dehumidification and is composed of the underground air pipe, the sky radiation, the Trombe wall, the phase change heat storage and the condensing surface, and can realize the effects of cooling and dehumidification by relying on renewable low-grade natural energy without the mechanical driving of a fan or a compressor.

The utility model discloses a cavity structure for converting an air pipe in soil covering, which comprises a civil engineering conversion cavity, a civil engineering conversion cavity, a civil engineering conversion cavity, a civil engineering conversion cavity, a civil engineering conversion cavity, a civil engineering conversion cavity, a civil engineering conversion cavity, a civil engineering conversion cavity, a civil engineering conversion cavity, a civil engineering conversion cavity and a civil engineering conversion cavity, the waterproof layer continuously covers the top of the civil engineering conversion cavity, and the waterproof layer and the basement roof waterproof layer form a closed-loop structure; the fine aggregate concrete protection layer covers the upper part of the waterproof layer and is 40mm in thickness; the air shaft is connected to the ground outlet end of the civil engineering conversion cavity, and a rainproof shutter is mounted at the top of the air shaft; the overhanging cornice is arranged on the outer side of the rainproof louver; the water drip is arranged around the overhanging eave; the basement roof waterproof layer is turned upwards along the outer wall of the air shaft, and the upturning height is larger than or equal to 250 mm; the height from the bottom of the rainproof shutter to the ground is larger than or equal to 500 mm. According to the modular connection design of the civil engineering conversion cavity and the air shaft, different soil covering depths and pipeline conversion angles can be flexibly adapted, and the reworking problem of a traditional vertical shaft caused by sudden change of the terrain is avoided.

The application discloses a construction environment control system for underground water-sealed caverns in severe cold regions and a control method thereof, and relates to the technical field of underground engineering construction. The system comprises an in-cavern environment maintaining module and a cavern mouth environment regulating module. The in-cavern environment maintaining module is arranged at the bottom of a ventilation shaft and comprises a warm air supply unit for supplying heat to a working face and an air flow blocking unit for blocking air flow in the shaft. The cavern mouth environment regulating module is sealingly connected to the entrance of a main roadway and comprises a heat preservation shed for forming a buffer air chamber, a jet flow pressurizing device for generating upward jet flow, and a warm air curtain machine for forming a barrier air curtain under the door. After the shaft is blocked, the jet flow pressurizing device and the warm air curtain machine are simultaneously started to establish and maintain a positive pressure environment inside the cavern mouth. Through modular cooperation, the application realizes the unity of stable maintenance of the heat field in the cavern and efficient discharge of pollutants at the cavern mouth, and effectively eliminates water mist and freezing damage.

The invention discloses a ventilation shaft of an urban underground comprehensive pipe gallery, and belongs to the technical field of urban underground infrastructure, the ventilation shaft comprises a shaft mechanism, the lower end of the shaft mechanism is connected with a ventilation pipe gallery, the upper end of the shaft mechanism protrudes out of the ground, and a ventilation mechanism is installed in the shaft mechanism; according to the underground pipe gallery cleaning device, the parts such as the ventilation mechanism, the transmission mechanism and the wiping mechanism are arranged, a servo motor of the ventilation mechanism drives ventilation fan blades to achieve the ventilation function, and meanwhile an output bevel gear and a transmission gear are synchronously driven to be in meshing transmission; the two symmetrical transmission mechanisms are driven by the transmission shaft to operate, the inner cleaning brush is driven to slide along the guide frame through linkage of the first connecting rod and other components, the inner cleaning brush is in linkage with the outer wiping brush of the wiping mechanism through the magnetic adsorption effect to synchronously move, and the inner cleaning brush and the outer wiping brush synchronously wipe the inner wall and the outer wall of the light-transmitting window correspondingly.

The air shaft structure comprises an air shaft body, a guide groove is formed in the edge of the inner wall of an air outlet shaft frame in a communicating mode, a ladder stand is fixedly connected to one side of the inner wall of the air shaft body, folding grooves are formed in the two sides of the inner wall of the air shaft body, and supporting blocks are installed on the inner walls of the folding grooves in an overturning mode. A fan is supported at the upper end of the supporting block, the edge of one side of the upper end of the fan is electrically connected with a connecting cable, and the other end of the connecting cable is electrically connected with the solar mechanism. According to the civil air defense engineering air shaft structure, the air outlet shaft frame and the solar energy mechanism can be conveniently, rapidly and stably installed through the bracket through the fixing bolts, the positioning installation buckling blocks and the positioning installation buckling grooves, maintenance is convenient, opening and closing can be rapidly turned over through the escape door plate, the escape effect is good, safety is higher, and practicability is high. Ventilation can be stabilized through the draught fan and the guide groove, the brush head and the ventilation shutter can be driven to slide and sweep through the sliding block and the sliding groove, and cleaning is convenient.

This application relates to the field of building construction technology, and provides a ventilation shaft duct installation structure and its construction method. The installation structure includes: a roof slab, a duct body, a lifting and supporting assembly, a sleeve, a support and clamping assembly, and a suspension component. The duct body includes multiple duct sections spliced ​​together, with steel bars installed on the two opposite outer walls of each duct section. The lifting and supporting assembly is distributed around the duct body for lowering the duct sections one by one into the ventilation shaft. The sleeve is pre-embedded in the ventilation shaft structural wall. The support and clamping assembly extends through the sleeve into the ventilation shaft and is clamped and fixed with the steel bars. The upper end of the suspension component is connected to the roof slab, and the lower end is suspended and connected to the support and clamping assembly. The installation of the duct of this invention is carried out after the ventilation shaft construction is completed, which can reduce the overlap of processes and improve construction efficiency. After the multiple duct sections are assembled and spliced ​​on the roof slab, they are lowered into the ventilation shaft one by one. The connection process between the duct sections is safe and reliable, and the installation quality is guaranteed.

The utility model discloses a small-section tunnel construction ventilation device and a construction system. The small-section tunnel construction ventilation device comprises a ventilation shaft and an exhaust shaft. The upper end of the ventilation shaft is connected with a compressed air duct and an air inlet fan located in the compressed air duct, and the lower end of the ventilation shaft is provided with a flow guide cover located in the tunnel. The upper end of the exhaust shaft is connected with an exhaust duct and an exhaust fan positioned in the exhaust duct, and the lower end of the exhaust shaft is communicated with the tunnel; the ventilation shaft and the exhaust shaft are both constructed to be small-diameter shafts, and the depths of the two shafts are both smaller than the distance between the shafts and the tunnel portal. The small-section tunnel construction system comprises the small-section tunnel construction ventilation device. By arranging the small-diameter vertical shaft, the construction requirement of a small-section tunnel is met, construction is convenient, and the construction difficulty and cost are reduced; the problem that in the prior art, an air pipe extrudes the construction operation space is solved, and the problem that the air pressure loss is too large due to the too long ventilation distance can also be avoided.

The application discloses a people's air defense and fire dual-purpose ventilation system provided with a filter ventilation, comprising a people's air defense and fire dual-purpose ventilation system, which adopts a people's air defense and fire dual-purpose fan, has the functions of normal time air exhaust, smoke exhaust and wartime air intake, and is provided with three interfaces for connecting air pipes, one interface is a normal time air exhaust and smoke exhaust outlet connected with a ventilation shaft through a normal time air pipe path, one interface is a wartime air intake inlet connected with the ventilation shaft through a wartime air pipe path, and the other interface is connected with an air pipe pipeline system in a main body of the project, valves are arranged at the three interfaces respectively, corresponding switching operations are conducted according to different working conditions, the whole underground ventilation system can ensure good ventilation in normal time and wartime, the number of adopted equipment is small, the occupied ground area is small, the conversion operation is simple and efficient in normal time and wartime, and the air defense and fire dual-purpose ventilation system can effectively filter toxic substances in air.

The invention discloses a partitioned controllable ventilation system of a multi-cavity regulating reservoir, and belongs to the technical field of ventilation. The ventilation system comprises a regulating reservoir, an exhaust branch hole, a ventilation shaft, an air draft fan, an air supply fan and a separation barrier; the adjusting pool comprises a plurality of caverns, the exhaust branch holes are located above the adjusting pool and communicated with the caverns, one end of the ventilation shaft is communicated with the ground environment, the other end of the ventilation shaft is communicated with the exhaust branch holes, the air draft fan is installed on the ventilation shaft and connected with a plurality of first ventilation pipes, and each cavern corresponds to at least one first ventilation pipe. The first ventilation pipes penetrate through the exhaust branch holes and extend into the corresponding caverns, the air supply fans correspond to the caverns in a one-to-one mode, the air supply fans are connected with second ventilation pipes communicating with the corresponding caverns, and the separation barriers are detachably installed at multiple positions in the caverns so as to separate the internal spaces of the caverns. According to the ventilation system, the ventilation effect can be improved, ventilation resources are accurately put, and energy waste is reduced.

The invention discloses a multi-scale composite greenbelt cooling structure and a construction method thereof, and the construction method comprises the following steps: constructing a ground surface cold storage layer composed of a permeable surface layer, a capillary cold storage layer and a cold source substrate layer to form a continuous evaporation cold source; an evapotranspiration enhanced vegetation layer of a vertical structure of arbor, shrub, grass and ground cover is configured to synergistically increase the air humidity and form a sparse ventilation passage; installing an air guide-shading composite layer with a gap type shading grating and adjustable air guide blades to attenuate radiation and guide airflow; an aerodynamic coupling structure comprising a vertical ventilation shaft and a horizontal ventilation gallery is constructed so as to collect and directionally convey cold air; the air guide blades and the humidification or water supply assembly are dynamically adjusted on the basis of environmental parameters so as to optimize cooperative operation, the corresponding system comprises all the layers and an intelligent control system which are in space coupling, and continuity, stability and adjustable output of the cooling effect in the limited green space are achieved through multi-mechanism space coupling and process collaboration.

The utility model relates to the field of buildings. The lighting mechanism for the house building comprises a ventilation shaft, a fence is arranged at a shaft opening of the ventilation shaft, ventilation openings are formed in the fence, and an exhaust fan is arranged in the ventilation shaft; the device further comprises a lighting cover and a light guide pipe. The top of the fence is sealed by the lighting cover, and the light guide pipe is connected to the lower portion of the lighting cover. A gap is formed between the light guide pipe and the ventilation shaft, the exhaust fan is located in the gap, and the bottom of the light guide pipe is sealed by the light scattering plate. Sunlight outside a house building can be led into the basement through the light collecting cover, the light guide pipe and the light scattering plate, and ventilation of the basement can be achieved through the ventilation shaft and the exhaust fan.

The invention relates to the technical field of shaft ventilation, and discloses an exhaust shaft excavation supporting and ventilation dust removal integrated construction system which comprises a supporting structure module, a ventilation dust removal module, a monitoring sensing module, an intelligent control module, a cleaning system module and an auxiliary supporting module. The supporting structure module is used for stably supporting a ventilation shaft and the joint of the shaft and a tunnel, the ventilation dust removal module is used for directionally discharging dust in the shaft, and the monitoring sensing module is used for collecting dust distribution and equipment operation data in the shaft. According to the technical scheme, the ventilation system is installed on the supporting structure through the lifting assembly and the horizontal moving assembly, flexible movement of the ventilation system in the horizontal direction and the vertical direction is achieved, meanwhile, the blowing angle of the fan is adjusted through the angle adjusting structure, and the AI image analysis module is matched for monitoring and analyzing dust distribution in real time; the dust gathering position, height and particle size can be accurately positioned, the optimal ventilation strategy is planned, and the pertinence and efficiency of ventilation and dust removal are greatly improved.

The invention discloses a multi-storey residential building toilet linkage ventilation system and an intelligent control method. The multi-storey residential building toilet linkage ventilation system comprises a ventilation shaft, a check valve, a differential pressure sensor, an exhaust fan, an edge controller, an intelligent gateway and a community central control terminal. The high-pressure end and the low-pressure end of the differential pressure sensor are arranged between the check valve and the exhaust fan along the exhaust duct, the edge controller and the intelligent gateway judge the airflow direction based on the differential pressure and control starting, stopping and speed regulation of the fan, and the indoor air inlet end of the exhaust fan is located in the area above the closestool. Each layer of edge controller and the intelligent gateway communicate with the central control terminal through wireless networking, and linkage is implemented in a high-risk state; in a pre-starting stage, positive pressure is monitored, and negative pressure is established; and in the pre-stop stage, delayed shutdown is calculated, and synchronous speed reduction and stable shutdown are performed. According to the system, reverse airflow can be recognized in real time, cross-layer cooperative blocking is achieved, safety and energy conservation are both considered, and intelligent control and aerosol blocking of a ventilation system of a bathroom of a multi-layer residential building are achieved.

The invention discloses a severe cold area underground water-sealed cave depot construction environment control system and a control method thereof, and relates to the technical field of underground engineering construction. The system comprises an in-hole environment maintenance module and a hole opening environment regulation and control module, and the in-hole environment maintenance module is arranged at the bottom of the ventilation shaft and comprises a warm air supply unit for supplying heat to a tunnel face and an airflow partition unit for blocking airflow in the shaft; the hole environment regulation and control module is connected to a main roadway inlet in a sealed mode and comprises a heat preservation shed forming a buffering air chamber, a jet flow pressurizing device generating upward jet flow and a warm air curtain machine forming a blocking air curtain on the lower portion of a door. And after the vertical shaft is cut off, the jet flow pressurizing device and the warm air curtain machine are synchronously started, so that an internal positive pressure environment is established and maintained at the hole opening. Through modular cooperation, unification of stable maintenance of a thermal field in the tunnel and efficient discharge of pollutants at the tunnel opening is achieved, and water mist and freeze injury are effectively eliminated.

This invention discloses a ventilation shaft structure for civil defense engineering, belonging to the field of civil defense engineering technology. It includes a ground surface, a ventilation shaft body on the ground, an enclosure connected to the upper side of the ventilation shaft body, and a ventilation structure rotatably connected to the enclosure; an opening / closing structure rotatably connected inside the enclosure and connected to the ventilation structure; a water collection structure mounted on the upper end of the opening / closing structure; and a wind-powered structure rotatably mounted on the upper end of the opening / closing structure. This invention relies on the water collection structure to drive the opening / closing structure using the gravity of rainwater and the wind-powered structure to drive the opening / closing structure using natural wind force. It can adaptively open and close or finely adjust the opening and closing blades according to rainfall and wind conditions. In rainy weather, it automatically closes the opening to prevent rainwater backflow and leakage; after rain, it automatically opens the windows for ventilation after the accumulated water is drained; and in windy weather, it automatically narrows the vents to prevent wind and dust and avoid abnormal internal wind pressure. A matching guide structure improves the stability of the transmission operation, achieving fully automatic adaptation of the ventilation shaft to various operating conditions. It has waterproof and windproof performance and high stability.

An aspect of the present disclosure provides a district cooling system including a cooling loop configured to cool one or more buildings, a conduit configured to draw water from a water body for cooling the cooling loop and a channel configured to receive the water that has been used to cool the cooling loop and to discharge the water into the water body The channel includes one or more ventilation shafts provided at least partially along the channel to cool the water in the channel. The cooling loop is thermally coupled to and fluidly isolated from the conduit.

The utility model relates to building ventilation shaft technical field especially a building ventilation shaft rain baffle, including first connecting plate, the lower surface of first connecting plate is provided with second sealing strip, the lower surface of first connecting plate is butt joint with second connecting plate, the lower surface of second connecting plate is butt joint with first sealing strip, first sealing strip and second sealing strip all are U shape structure, it is fixed between first connecting plate and second connecting plate through fixed mechanism, one end of first connecting plate is fixedly connected with sealing part, sealing part with second sealing strip all with second connecting plate abut, first connecting plate and second connecting plate are connected with ventilation shaft through connecting mechanism. The utility model is convenient for adapting to the ventilation shaft of different length, has expanded the use range of rain baffle.

The invention discloses an underground ventilation device for coal mining, which can effectively realize automatic control on underground ventilation, can detect the underground air condition by utilizing a sensor group, can also be provided with a temperature and humidity sensor to automatically control ventilation equipment according to the air detection condition, and can automatically control the ventilation equipment according to the air detection condition during control. The ventilation quantity of different positions of the roadway can be distributed by utilizing the ventilation distribution mechanism, so that the ventilation equipment can ventilate positions with poor air quality, the ventilation efficiency and effect of the equipment are improved, the physical and psychological health of underground operators is ensured, and the requirement of safe production is ensured; according to the ventilation distribution mechanism, the ventilation airflow of the ventilation shaft can be redistributed underground, so that the position needing ventilation is preferentially ventilated according to the requirement of the ventilation position.

The invention relates to the technical field of geotechnical engineering and mine construction engineering, in particular to a construction method of a steel cylinder concrete composite structure of a ventilation shaft for blind people in fractured rock mass, which comprises the following steps: S1, guide hole construction and scheme determination; s2, constructing a wellhead locking opening and a mounting base; s3, well mouth chambering construction; s4, prefabricated steel cylinder modules are manufactured and transported; s5, mounting the prefabricated steel cylinder module from bottom to top; s6, pouring concrete into gaps on the outer sides of the prefabricated steel cylinders; and S7, shaft internal structure and facility installation. The construction method of the broken rock mass blind person walking ventilation shaft steel cylinder concrete composite structure is high in safety, and after a raise boring machine is used for rapidly forming a pilot shaft, the prefabricated steel cylinder is installed immediately. The steel cylinder is of a high-strength closed structure, full-section safety protection can be immediately provided for underground construction in the installation process, fractured rock masses are effectively isolated, and the risk that workers operate under the exposed fractured roof for a long time is avoided.