15results about How to "Achieve ventilation effect" patented technology

The utility model relates to the technical field of alarm devices, in particular to an alarm and ventilation linkage type smoke alarm device which comprises an installation frame, a fixing plate is installed in the installation frame, a ventilation fan is installed in the fixing plate, a rotating column is installed on the inner side wall of the installation frame in an inserted mode, and a shielding plate is installed on the outer surface of the rotating column. And the bidirectional motor is installed on the back face of the rotating column, the bidirectional motor is arranged in the mounting frame, a rotating shaft is installed at the output end of the back face of the bidirectional motor, and a stabilizing ring is fixedly connected to the outer surface of the rotating shaft. The rotating shaft can drive the stabilizing ring and the connecting plate to rotate, so that the connecting plate can drive the knocking block to abut against the left side surface of the metal alarm plate, the metal alarm plate can make a sound, an alarm can be automatically given out, meanwhile, the ventilation fan is started, air in the indoor environment is pumped out through the ventilation fan, and the indoor environment is protected. Therefore, the effects of ventilation and alarm can be achieved simultaneously.

This utility model relates to a double-sided opening U-shaped ventilation device, including a front vertical frame, a rear vertical frame, and a mounting frame. Two front and two rear vertical frames are each installed within a curtain wall. Tempered glass is installed between the inner sides of the two front vertical frames. The front vertical frames are connected to the rear vertical frames via the mounting frame, forming a U-shaped structure. A perforated lightweight metal plate is installed on the inner side of the mounting frame, and a window sash is rotatably connected to the outer side of the mounting frame. In this design, because the window sash is located inside the curtain wall on an inner floor, it serves to prevent falls from heights. The lightweight metal plate is secured to the inner side of the mounting frame, and its outer surface is uniformly perforated. When the window sash is opened, airflow exchange between the inside and outside is achieved for ventilation.

The utility model provides a building environment regulation and control system, a multi-radiation tail end unit comprises a top plate radiation tail end module, a wall surface radiation tail end module and a floor radiation tail end module, a heat pump unit comprises a buffer water tank and a heat pump host, and a primary side water return pipeline between the buffer water tank and the heat pump host is provided with a three-way switching valve; on one hand, a multi-dimensional and large-area radiation heat exchange network structure is formed by integrating the top plate, the wall and the ground, an extremely uniform, stable and dead-corner-free indoor temperature field can be built, the problems that a traditional convection air conditioner is not uniform in cold and heat and air blowing feelings exist are solved, and the problem that application of a single radiation surface is limited is solved; and on the other hand, the sky radiation refrigeration unit is integrated, so that the sky radiation refrigeration unit can be switched with the radiation heat exchange network structure, free cold sources in nature are utilized, a heat pump can be greatly replaced or assisted for refrigeration under proper meteorological conditions, and the energy consumption of building regulation and control in the refrigeration season is reduced.

The utility model discloses an anti-freezing device for a cooling tower coil, and relates to the technical field of cooling towers, the anti-freezing device comprises a cooling tower shell and a device frame installed on one side of the cooling tower shell, a rotating rod rotatably connected with the device frame is arranged on one side of the top end of the device frame in a penetrating mode, and a plurality of shielding pieces are arranged on the device frame. A first rotating shaft is installed in the middle of the bottom of each shielding piece, a second rotating shaft is installed in the middle of the top end of each shielding piece, the top end of each second rotating shaft extends into the device frame and is provided with a worm wheel, and a plurality of worms matched with the worm wheels are installed on the rotating rod. According to the designed shielding pieces, the influence of external cold air on a coil pipe in the cooling tower can be reduced when the temperature is low, the shielding pieces can be rotated and inclined when the temperature is high, gaps are formed between the shielding pieces, external air can flow into a shell of the cooling tower, and the ventilation effect can be achieved while anti-freezing is achieved.

The utility model provides a kind of poultry feed storage box, belong to feed storage technical field, this poultry feed storage box includes feed tank ontology;Double lid, two double lids are equipped, two double lids are all rotated and are connected in the upper end of feed tank ontology by pivot;Mildew-proof mechanism, two groups are equipped in mildew-proof mechanism, and each group of mildew-proof mechanism includes ventilation placing groove, closed air placing groove, limit sliding slot, rotating shaft, ventilation sliding slot, closed air cover and air hole, limit sliding slot and limit sliding block are equipped with two, ventilation placing groove is opened in the upper end of double lid, effectively realize the ventilation and sealing conversion of feed, this design can be adjusted flexibly according to weather condition, ensure that feed is not prone to mildew in humid environment.

The invention discloses an air purification device, air treatment equipment and a control method and device thereof. The air purification device comprises an air guide plate, the air guide plate is provided with a plurality of ventilation holes, and a catalyst is arranged on the windward side of the air guide plate; and the energy source is arranged opposite to the air guide plate and arranged to be capable of being powered on to generate purification substances, and the purification substances are arranged to be capable of achieving the synergistic effect with the catalyst for air purification. According to the scheme, the peculiar smell in the space can be effectively removed, consumables do not need to be replaced regularly, a compressor does not need to be started for refrigeration and heating operation, the use cost of a user is reduced, and the use experience of the user is improved; and air purification can be carried out in the process that the air treatment equipment operates in other modes, air purification can also be carried out when the air treatment equipment is not in the working state, the full-time air purification function of the air treatment equipment can be conveniently achieved, and the requirement of the air purification mode for the state of the air treatment equipment is lowered.

The utility model relates to the technical field of bee breeding equipment, specifically relates to a foamed honey box, including the box of foamed material and the cover of the cover body on the top of box, be equipped with the stepped window on the lateral wall of box, the stepped window is constituted by outer window, inner window and connecting portion, outer window detachable connection cover plate, the gauze screen component of detachable connection covering inner window is established in the inside of box, still be equipped with the ventilation opening and the honeycomb mouth in the box, the filter screen is established in the inside of ventilation opening, the outside is equipped with the adjusting part of adjustable air volume, the utility model has the advantages of foamed material lightweight, low cost, the good advantage of heat preservation, through the cover plate, gauze and adjusting part of the ventilation opening place setting of stepped window, realize the flexible adjustment of ventilation and heat preservation state, the design of stepped window avoids the weakening of the local structure strength of box due to the window opening, effectively prevent the deformation or damage of window place, improve the durability of honey box, be applicable to the bee breeding, and the practicality is strong.

The utility model provides an office chair with ventilation function, which is used to solve the technical problem that dust is easy to accumulate in the ventilation hole of the sitting plate of the existing office chair with ventilation function, and the dust is blown out from the ventilation hole along with the airflow when the office chair is turned on, affecting the health of the user. The utility model discloses an office chair with ventilation function, which comprises a sitting plate, chair legs arranged at the bottom of the sitting plate, baffle plates arranged between the chair legs and the front and rear parts of the sitting plate, a cavity arranged in the sitting plate, an air inlet hole arranged at the bottom of the sitting plate, an air outlet hole arranged at the top of the sitting plate, the air inlet hole and the air outlet hole being communicated with the cavity, and a blower assembly arranged in the cavity of the sitting plate.

The utility model belongs to the technical field of feedback furnace, concretely is feedback furnace, including furnace body, both sides fixed mounting of furnace body have first flange, the bottom fixed mounting of furnace body surface has support leg, the inner wall of furnace body is provided with connecting assembly, the top of furnace body surface is provided with ventilation mechanism, one end of furnace body is provided with sealing mechanism, the one end close to sealing mechanism of furnace body is provided with overhaul mechanism, through the setting of pouring material core seat, single furnace core, second flange, air supplement window and pyrolysis gas import, the design of single furnace core multistage type can be convenient replacement and maintenance to save replacement time and can promote work efficiency, and pouring material core seat can provide support for single furnace core to ensure that single furnace core can be used stably, and the cooperation of second flange, air supplement window and pyrolysis gas import can make the inside of furnace body can realize the ventilation function to the heat wave that can make single furnace core use time produces can be discharged smoothly.

This disclosure provides a ventilation system, control method, device, and related equipment for hydrogen-powered locomotives, relating to the field of hydrogen-powered locomotive technology. The ventilation system includes: a ventilation device for ventilating the hydrogen storage compartment of the hydrogen-powered locomotive; a time-delay switch circuit connected between a first power supply circuit of the hydrogen-powered locomotive and a second power supply circuit of the ventilation device, used to switch from an open state to a closed state when the first power supply circuit is on, and then switch back to an open state after a preset duration, wherein the second power supply circuit is on when the time-delay switch circuit is on; and a control device connected to the second power supply circuit, used to control the second power supply circuit to be on or off after the time-delay switch circuit switches from a closed state to an open state. This disclosure, through the proposed ventilation system, reduces the risks and hazards caused by hydrogen leakage in hydrogen-powered locomotives, providing a reliable guarantee for the safe operation of hydrogen-powered locomotives.

The utility model belongs to the technical field of pavilion structures, and particularly relates to a leakproof ceiling openable pavilion which comprises a frame assembly and a ceiling assembly, the frame assembly comprises a supporting column, a base arranged at the bottom of the supporting column, and a top frame and a drainage groove which are arranged at the top of the supporting column; the ceiling assembly comprises a plurality of blades arranged in the cavity, a connecting rod connected with the blades and a power piece installed on the top frame, each blade comprises a body, a cover plate, a water guide plate, a buckle plate and a leakage-proof plate, a waterproof blocking piece is connected to the lower portion of the buckle plate, and a square waterproof rubber strip is arranged between the inner side of the drainage groove and the blades. When the blades are closed, water leakage prevention can be guaranteed, rainwater in the drainage grooves is prevented from permeating into the pavilion from gaps between the blades and the drainage grooves, the water leakage prevention effect is better, a user can still open or close the ceiling according to actual needs, the functions of ventilation, lighting or sun shading and rain shielding are achieved, the user is not afraid of water leakage, and the water leakage prevention effect is good. Installation and debugging are convenient.

This invention discloses a slope-following drainage system and drainage and construction method for the high-end portal of a single-slope tunnel. When the high-end portal of a single-slope tunnel passes through soluble rock or highly water-rich areas, slope-following construction is generally required. This invention includes a main cross tunnel construction section and a secondary cross tunnel construction section for the main tunnel portal requiring slope-following construction. One end of the main cross tunnel connects to the lowest point of the main tunnel section requiring slope-following construction, and the other end connects to a short inclined shaft and a drainage tunnel. One end of the secondary cross tunnel connects to the lowest point of the secondary cross tunnel construction section of the main tunnel, and the other end connects to the middle position of the main cross tunnel. One end of the short inclined shaft connects to the main cross tunnel and the drainage tunnel, and the other end is a surface inclined shaft opening. One end of the drainage tunnel connects to the main cross tunnel and the short inclined shaft, and the other end is a surface drainage tunnel opening. This invention utilizes a combination of cross tunnels, drainage tunnels, and short inclined shafts for construction. The connection between the cross tunnels and the short inclined shafts enables material transportation and construction ventilation, and the drainage tunnel serves as a drainage outlet, thereby achieving slope-following construction of the high-end portal.

The utility model relates to the technical field of cracking reactors, in particular to a methanol leakage air interchanger for a cracking reactor, which comprises a base, a cracking reactor main body arranged at the top of the base, a methanol storage tank mounted in the cracking reactor main body, and an electrochemical sensor mounted on the outer side of the methanol storage tank. An electrochemical sensor is arranged in the cracking reactor body, an inductive head is installed on the side face of the electrochemical sensor and extends into the cavity of the cracking reactor body, an audible and visual alarm is arranged below the electrochemical sensor, a PLC is arranged below the audible and visual alarm, and the electrochemical sensor and the audible and visual alarm are both electrically connected with the PLC. A first mounting hole is formed in the outer side of the cracking reactor main body and is fixedly connected with the exhaust pipe; according to the utility model, the ventilation device is arranged, so that the harm caused by leakage of methanol gas can be avoided, and the leaked methanol gas can be recycled through the recovery device, so that the effect of saving resources is achieved.

A shoe sole capable of enhancing breathability comprises a shoe sole body, the shoe sole body is connected with a shoe body, a plurality of first through holes penetrating from the upper end face to the lower end face are formed in the shoe sole body, a plurality of first grooves and a plurality of second grooves are formed in the lower end face of the shoe sole body, and the first through holes are communicated with openings formed in the lower end face of the shoe sole body through the first grooves. One end of the second groove is communicated with the first groove, and the other end of the second groove extends to the side surface of the sole main body; according to the shoe sole, the ventilation effect can be achieved in multiple aspects, meanwhile, dust and other impurities can be prevented from influencing the general degree of each ventilation channel, and it is guaranteed that the ventilation effect is continuously kept; according to the gas exchange device, larger power can be provided for gas during gas circulation, namely gas discharge is promoted by increasing the pressure intensity, the gas discharge effect is further improved, and the gas exchange efficiency is improved.

The holding furnace comprises a furnace body, a heating chamber is arranged in the peripheral side wall of the furnace body, an electric heating ring is arranged in the heating chamber, the electric heating ring is electrified, a feeding port is formed in the top face of the furnace body, a cover plate is arranged at the feeding port, a discharging port is formed in the bottom face of the furnace body, and a discharging pipe is arranged at the discharging port. An on-off valve is arranged on the discharging pipe; a ventilation assembly is further arranged on the top face of the furnace body and comprises a ventilation pipe and a filter plate, a ventilation opening is formed in the top face of the furnace body, the filter plate and the ventilation pipe are detachably installed at the ventilation opening, and the ventilation pipe is arranged on the outer side of the filter plate. According to the technical scheme, the possibility that a worker inhales heavy metal gas when operating the heat preservation furnace can be reduced, and the influence on the body health of the worker is reduced.