9results about How to "Meet Ventilation Needs" patented technology

This invention discloses an intelligent ventilation system and its control method based on a high-torque motor, solving technical problems such as insufficient heat dissipation, complex assembly, and poor sealing in existing technologies. The rotor assembly adopts an integral cast housing combined with polymer-bonded magnets, significantly improving structural strength and heat dissipation efficiency. The stator assembly features an innovative multi-slot winding design and a double-sealing structure, balancing high power density and long service life. The matching shaftless fan system achieves quick installation through a clamp structure, avoiding the complexity and safety hazards of traditional threaded connections. Furthermore, by introducing intelligent control and IoT technology, the ventilation system can adaptively adjust its operating mode according to changes in the surrounding environment or user needs, achieving healthy, safe, and hygienic ventilation. This invention is applicable to exhaust fans, fans, air purification equipment, and other fields, and features high efficiency, reliability, and ease of maintenance.

The utility model relates to a kind of fan frequency conversion energy-saving system, the valve piece opening of most unfavorable branch is measured by at least the wind control unit being set on most unfavorable branch, and according to the valve piece opening of most unfavorable branch adjusts fan operating frequency, so that system meets fan under the most reasonable operating frequency operation at any time, while meeting ventilation demand, maximize reduce fan energy consumption, and system installation and debugging are convenient, reduce the over-high requirement of technical personnel in construction and debugging process, save artificial management cost, improve management efficiency, and effectively reduce the present situation of on-site debugging difficulty.

This application discloses a highly integrated roof assembly for rail transit vehicles, relating to the technical field of rail transit vehicle components. It includes a main roof structure composed of an upper panel, a lower panel, and a core layer. A load-bearing frame is integrated with the main roof structure to support and transfer loads to the vehicle body. Air ducts and cable trays are located inside the main roof structure for ventilation and electrical wiring harness arrangement, respectively. A mounting frame is located on top of the main roof structure, with several mounting interfaces for installing air conditioning units and power battery modules. Additionally, components such as heat dissipation plates are provided to assist in heat dissipation. This application achieves a high degree of functional integration. Through a rational structural design, it integrates multiple roof functions while ensuring good ventilation and heat dissipation performance, making the roof structure more stable and reliable.

The composite film is formed by laminating and compounding at least two layers of polymer porous films with anisotropic microporous structures, and the adjacent film layers are stacked after rotating by 45-135 degrees around the axis perpendicular to the film surface, the micropore channels of the upper and lower film layers form a non-through structure in a three-dimensional space, and decoupling of a heat flow transmission direction and a gas diffusion direction is realized. The interlayer dislocation degree is controlled by regulating and controlling the rotation angle, an efficient thermal resistance barrier is formed in the thickness direction, and meanwhile a gas diffusion channel is kept in the plane direction. The composite film has excellent heat insulation performance and air permeability, the heat conductivity coefficient can be as low as 0.028 W / (m.K), the water vapor transmission rate is kept at 980 g / (m.24 h) or above, the preparation process is simple and controllable, and the composite film can be widely applied to the fields of automobile interiors, building heat preservation, garment materials and the like.

The utility model relates to the field of residence ventilation, and discloses a high-rise residence energy-saving ventilation structure which comprises an air inlet pipeline and an air outlet pipeline. One end of the air inlet pipeline and one end of the air outlet pipeline communicate with the outside, the other end of the air inlet pipeline communicates with the upper portion of the first air circulation mechanism, the other end of the air outlet pipeline communicates with the upper portion of the second air circulation mechanism, one end of the first ventilation pipe communicates with the right side of the first air circulation mechanism, and the outer wall of the first ventilation pipe fixedly communicates with one ends of the multiple air outlet pipes. Through the arrangement of the air inlet pipeline, the air outlet pipeline, the first air circulation mechanism and the second air circulation mechanism, rapid circulation and air exchange of indoor air are achieved, and the ventilation efficiency is improved.

The utility model relates to elevator technical field discloses a kind of ventilation device of lift, including elevator car and fan fixedly installed at the top of elevator car, the inner wall of the elevator car is fixedly connected with flow guide box, the inside of the flow guide box is transversely provided with air passage, the inside of the flow guide box is longitudinally provided with the air outlet groove being communicated with air passage. The utility model breaks through the air flow limitation of traditional ventilation fan by air passage, air outlet groove in flow guide box, cooperate top wall air outlet hole one with side wall air outlet hole two, adjustment assembly drives silica gel sealing block sliding, can realize top and lateral air outlet switching, enlarge ventilation range, improve efficiency and cooling effect, air outlet hole two is downward to avoid direct blowing passenger, improve comfort, silica gel sealing block is isosceles trapezoid, with fixed frame air passage matching, avoid air leakage, adjustment assembly is fixed sliding plate by magnet magnetic attraction, stabilize silica gel sealing block and be convenient for operation, satisfy different ventilation needs.

An adjusting valve of the ventilation water tank comprises a front end tooth groove, a main body is a plate-shaped structure with a shaft and a valve tail end, and the circular plate-shaped structure with the shaft is matched with the cross section of a ventilation pipe in size. A ventilation pipe penetrates through the top of the water tank main body; a shell is fixed to one side face of the ventilation pipe, a front end tooth groove is formed in the shell, an adjusting handle is arranged outside the shell, and the adjusting handle is fixedly connected with the front end tooth groove. Bearing seats are fixed on the opposite side surfaces of the ventilation pipe, and are internally and rotatably connected with the valve tail end; a sliding groove is formed in the shell, a bolt is slidably connected into the sliding groove, and the front end of the bolt is inserted into the front end tooth groove to limit the rotation angle of the adjusting valve. A filter box is installed on the top of the ventilation pipe in a penetrating mode, an exhaust fan is arranged in the filter box, and a filter mechanism capable of being rapidly replaced is arranged above the exhaust fan. The ventilation requirements in different use scenes can be met by adjusting the rotating angle of the adjusting valve, the practicability and flexibility of ventilation of the water tank are improved, and the ventilation air volume can be accurately controlled.

The invention discloses a piston wind and renewable energy collaborative energy supply ventilation method and system in a tunnel. The method comprises the following steps that S1, system initialization and multi-source data collection and fusion are conducted; S2, tunnel ventilation requirements in a future time window are calculated through a prediction model based on collected data; s3, aiming at meeting the ventilation requirement, deploying energy according to the power distribution priority, and generating an initial control strategy containing fan operation parameters and an electric energy deploying scheme; s4, the initial control strategy is executed, and the actual ventilation effect in the tunnel is monitored in real time; s5-S7, performing multi-level evaluation and decision feedback, and updating the decision until the actual ventilation effect reaches the standard; and S8, data archiving and model updating: storing a final successful strategy and related data in the control period into a database, and updating and optimizing the prediction model. Intelligent energy allocation of tunnel ventilation is realized, the green energy utilization rate is improved, a multi-level decision feedback mechanism is established, and the control precision is improved.

The ventilation hole structure for the existing building comprises a ventilation pipe and a conversion air bellow arranged indoors, an installation opening is formed in the first side wall of the conversion air bellow, and the ventilation pipe is installed at the installation opening in a sealed mode; a first ventilation opening is formed in the second side wall of the conversion air box, a second ventilation opening is formed in the outer wall of the existing building, and a shutter is arranged in the second ventilation opening. The first ventilation opening and the second ventilation opening are coaxially formed and are vertically staggered. The adapter bellows is installed on the indoor side of the outer wall of the existing building, the ventilation pipe and the second ventilation opening of the existing building are in butt joint in an up-and-down staggered mode, the ventilation requirement is met, the outer vertical face structure of the existing building is not changed, and high economical efficiency and operability are achieved; moreover, the conversion air bellow has flow equalizing and pressure equalizing effects, so that the resistance loss of airflow flowing through the box body can be reduced, and energy conservation and emission reduction can be realized.