1259 results about "Ventilation duct" patented technology

The invention discloses ventilation pipeline welding supporting equipment, relates to the technical field of ventilation pipeline welding, and aims at solving the technical problem that a traditional supporting device is insufficient in functionality. A center driving assembly, at least two outer edge supporting assemblies and an end supporting assembly are sequentially arranged on the main body rail frame from the input end to the output end. Welding assemblies are arranged on the outer sides of the two outer edge supporting assemblies; the welding end of the welding assembly is arranged in the gap between the two outer edge supporting assemblies in a penetrating mode. The driving type pushing mechanism has an intermittent pushing state and a continuous pushing state, and the driving type pushing mechanism is matched with the center driving disc frame to conduct continuous rotating work or intermittent rotating work, so that the ventilation pipeline welding supporting equipment conducts welding work on a circular pipeline of a spiral curling preparation technology; the welding work of the circular pipeline of the circular pipeline unit segmented welding preparation process is conducted; through cooperation of the dual-mode driving mechanism and the reconfigurable supporting system, the limitation of the single function of traditional equipment is broken through.

The invention discloses an unpowered air purification device based on electrostatic adsorption and negative ion effects, and relates to the technical field of air purification, the unpowered air purification device comprises a ventilation pipeline, an electrostatic adsorption module, a particle capture net, a negative ion release module and the like, a wind scooper guides airflow to enter the electrostatic adsorption module, and a friction ball rubs with an electrode plate to enable the electrode plate to be electrified; particulate matters in the air are adsorbed, falling particulate matters are collected by a liquid collecting box, residual particulate matters are further intercepted by a particulate capturing net, the elastic design is convenient for shaking off and cleaning, and the negative ion release module accelerates the generation of negative ions and purifies the air by utilizing the solar thermal conversion and piezoelectric effect. Efficient air purification is achieved through a multi-stage purification structure, the functions of humidity adjustment, intelligent reminding and the like are achieved, the structure is simple, energy conservation and environment protection are achieved, the device can adapt to various scenes, and an innovative scheme is provided for solving the air pollution problem.

The utility model discloses a ventilation pipeline for an air compressor, and relates to the technical field of ventilation pipelines, the ventilation pipeline for the air compressor comprises the air compressor, the top of the air compressor penetrates through and is provided with a first pipeline, and the rear end of the first pipeline is provided with a cooling assembly; the cooling assembly comprises a cooling pipeline which penetrates through the rear end of the first pipeline and is fixedly connected with the rear end of the first pipeline, and the cooling pipeline, the connecting grid pipe, the cooling fan, the circulating pump, the bent pipe and the connecting pipe are matched with one another, so that compressed air enters the cooling pipeline and then is cooled through the cooling fan after entering the cooling pipeline. Water vapor is condensed through circulating cooling of a plurality of connecting grid pipes, so that primary separation of the water vapor and the air is achieved, moisture in the air can be adsorbed through the moisture absorption sponge through mutual cooperation of the arranged shell and the moisture absorption sponge, the moisture is left in the shell, the air continues to be conveyed through a third pipeline, and therefore the water vapor is effectively separated from the air. And gas-water separation is achieved, and electrical equipment cannot be damaged.

The utility model belongs to the technical field of electrical equipment, and particularly relates to clothes treatment equipment. The clothes treating equipment comprises a first cylinder and a second cylinder which are arranged in parallel; a drying member; the ventilation pipeline comprises a first connecting part, a second connecting part and a third connecting part, the first connecting part of the ventilation pipeline is connected with the first barrel, the second connecting part of the ventilation pipeline is connected with the second barrel, and the third connecting part of the ventilation pipeline is connected with the drying component; an air inlet, a first air outlet and a second air outlet which are communicated with one another are formed in a third connecting part of the ventilation pipeline, and the valve plate is rotatably arranged in the third connecting part of the ventilation pipeline and used for adjusting the air flow flux of the first air outlet and the second air outlet.

This application relates to a method, device, and computer for determining vehicle seat ventilation parameters. The method includes: obtaining three-dimensional contour information of a target object on a vehicle seat, physiological information of the object, and information about the vehicle's interior environment; performing a comfort analysis based on the physiological information of the object and the interior environment to determine the comfort physiological information; constructing ventilation duct information for the vehicle seat based on the three-dimensional contour information, using the comfort physiological information as a target condition; inputting the comfort physiological information and ventilation duct information into a fan control model to obtain initial fan operating parameters corresponding to each fan; performing a ventilation simulation based on the initial fan operating parameters to obtain fan operating information corresponding to each fan; for any fan, performing energy-saving optimization on the initial fan operating parameters based on the fan operating information to obtain target fan operating parameters; and fusing the target fan operating parameters to obtain seat ventilation parameters for the vehicle seat. This method can improve seat ventilation performance.

The UHPC assembly type machine room structure comprises a machine room enclosure bulkhead cylinder body, a first end cover and a second end cover, wherein the machine room enclosure bulkhead cylinder body is prefabricated by adopting an ultra-high performance concrete UHPC material; the machine room enclosure bulkhead cylinder body is provided with a bottom plate and two side walls, and the machine room enclosure bulkhead cylinder body is provided with a first opening end and a second opening end which are oppositely arranged; the first end cover and the second end cover are respectively arranged at the first opening end and the second opening end; the two end covers are provided with smoke suction and exhaust ports used for being connected with a ventilation pipeline. A machine room access door is arranged on one side wall; an internal smoke exhaust pipeline is arranged in the machine room enclosure bulkhead cylinder body, the two ends of the internal smoke exhaust pipeline are connected with the smoke suction and exhaust ports in the first end cover and the second end cover respectively, and the fan is arranged on the internal smoke exhaust pipeline. The UHPC shell is adopted and serves as an outer enclosure material of the machine room structure at the same time, the functions of enclosure, decoration, structural bearing and partial fire prevention are achieved, and building structure decoration and function integration is achieved.

The invention relates to a UHPC-based fabricated fire-fighting smoke exhaust fan room structure and a construction method thereof, the room structure comprises a main body structure, and the main body structure is prefabricated by adopting an ultra-high performance concrete UHPC material; a fan is arranged in the internal space of the main body structure; the main body structure is provided with a machine room enclosure bulkhead cylinder body and an end cover side wall. Wherein the machine room enclosure bulkhead cylinder body is provided with a bottom plate, a first side wall and a second side wall, the first side wall and the second side wall are connected with the bottom plate and vertically arranged in parallel, and a first opening end and a second opening end which are oppositely arranged are arranged at the two ends of the machine room enclosure bulkhead cylinder body in the horizontal direction respectively; the end cover side wall is provided with a first end cover and a second end cover which are respectively arranged at the first opening end and the second opening end; the first end cover and the second end cover are each provided with a smoke suction and exhaust port, and the smoke suction and exhaust ports are used for being connected with a ventilation pipeline. The UHPC shell is adopted, the advantages of being high in strength and good in fire resistance are achieved, the prefabricated assembly type structure is adopted, construction is convenient, and efficiency is high.

The utility model belongs to the technical field of electrical equipment, and particularly relates to clothes treatment equipment. A ventilation pipeline of the clothes treatment equipment comprises a first connecting part, a second connecting part and a third connecting part, the first connecting part of the ventilation pipeline is connected with a first barrel, the second connecting part of the ventilation pipeline is connected with a second barrel, the third connecting part of the ventilation pipeline is connected with a drying module, and the first ventilation part of the third connecting part is provided with a communicated first air inlet. A first air outlet and a second air outlet; the first valve rotates in the first ventilation part so as to adjust the air flow flux of the first air outlet or the second air outlet; the first detection assembly comprises a first triggering piece and a first position confirming piece, the first triggering piece is connected with the first valve, the first position confirming piece is connected with the first ventilation part, and when the first valve rotates in the first ventilation part, the first triggering piece triggers the first position confirming piece to confirm that the first valve rotates in place.

The utility model discloses a storage device for improving the stability of carbon black, which comprises a stock bin, a stirring mechanism and a ventilation mechanism are arranged in the stock bin, the stirring mechanism comprises a stirring shaft arranged in the stock bin and stirring blades arranged on the stirring shaft, the stirring blades are arranged in a multi-layer and multi-angle mode, the stock bin is communicated with a nitrogen storage tank, and the nitrogen storage tank is communicated with the ventilation mechanism. A first electric valve is arranged on a connecting pipeline of the stock bin and the nitrogen storage tank, an oxygen concentration sensor and a humidity sensor are arranged in the stock bin, and the oxygen concentration sensor is interlocked with the first electric valve; the ventilation mechanism comprises an annular ventilation pipeline arranged on the lower portion of the stock bin, a plurality of ventilation holes facing the stirring shaft are formed in the annular ventilation pipeline, and the annular ventilation pipeline communicates with an air blower. The humidity sensor is interlocked with the blower; an air outlet is formed in the top of the stock bin and sequentially communicated with the cyclone separator, the bag-type dust collector and the induced draft fan. The device can effectively prevent the carbon black from absorbing moisture, oxidizing and caking, so that the storage stability of the carbon black is improved, and the dust raising phenomenon can be effectively avoided.

The utility model discloses an assembly type low-specific-friction low-air-leakage ventilation pipeline, and relates to the technical field of ventilation air pipes. The utility model comprises pipe joints which are spliced end to end; the pipe joint comprises an outer shell and an inner shell which are coaxially arranged in a sleeved mode, and the inner wall of the outer shell is attached to the outer wall of the inner shell. A first annular groove surrounding the axis of the outer shell is formed in the middle section of the inner wall of the outer shell, second annular grooves surrounding the axis of the outer shell are formed in the two ends of the inner wall of the outer shell, and one side of each second annular groove penetrates through the end of the outer shell. A cooling filling cavity is formed between the outer wall of the inner shell and the first annular groove in a surrounding mode, the outer wall of the inner shell and the two second annular grooves form a first sealing filling cavity and a second sealing filling cavity respectively, and the first sealing filling cavity and the second sealing filling cavity of the other pipe joint are spliced to form a sealing cavity. The purposes that the air pipe can be conveniently assembled, the sealing performance is excellent, and meanwhile the air pipe has low specific friction resistance and good flame retardant performance are achieved.

The invention relates to an assembly type integrated fire-fighting smoke exhaust fan room structure which comprises a machine room enclosure bulkhead cylinder body which is provided with a bottom plate, a first side wall and a second side wall, the first side wall and the second side wall are connected with the bottom plate and vertically arranged in parallel, and the two ends of the machine room enclosure bulkhead cylinder body in the horizontal direction are provided with a first opening end and a second opening end which are oppositely arranged correspondingly; the end cover side wall is provided with a first end cover and a second end cover which are respectively arranged at the first opening end and the second opening end; smoke suction and exhaust ports are formed in the first end cover and the second end cover and are used for being connected with a ventilation pipeline; the machine room access door is arranged on the first side wall or the second side wall and can be opened and closed; the fan is arranged in an internal space formed by the machine room enclosure bulkhead cylinder body, the first end cover and the second end cover; the machine room enclosure bulkhead cylinder body, the first end cover, the second end cover and the machine room access door are all of a prefabricated concrete structure. The fabricated integrated design is adopted, the cost is low, the self weight is light, fireproof performance is achieved, and the advantages of being stable, reusable, attractive and the like are achieved.

The invention relates to the technical field of coal mine safety ventilation, in particular to a coal mine ventilation and exhaust device and a control system thereof. According to the technical scheme, the coal mine ventilation and exhaust device and the control system thereof comprise a ventilation pipeline outer cavity, a ventilation fan, an air volume induction module, a filtering device, a gas detection module, a control module, an air suction machine and a protection sieve plate, the ventilation fan is arranged in the ventilation pipeline outer cavity, and the air volume induction module is arranged on one side of the ventilation pipeline outer cavity; a filtering device is arranged on the other side of the outer cavity of the ventilating pipeline; according to the invention, deep integration of multi-source data and dynamic environment modeling are realized through the intelligent environment prediction module, the temporal-spatial resolution of environment monitoring and the comprehensiveness of risk assessment are remarkably improved, safety early warning is upgraded from passive threshold judgment to active coupling analysis, the false alarm rate is greatly reduced, potential risks are intervened in advance, and the safety of the mine environment is guaranteed.

The middle shaft-free ventilation system comprises a right-line tunnel, a left-line tunnel and a middle tunnel, an air feeder is arranged in an air feeder room, the air feeder room takes air through the middle tunnel, and the air is fed to the right-line tunnel or the left-line tunnel through an air feeding opening in an outlet of the air feeder room; the right-line tunnel top air duct and the left-line tunnel top air duct are provided with ordinary exhaust outlets in the upstream of the air supply outlets in the driving direction, the right-line tunnel top air duct and the left-line tunnel top air duct communicate with each other through a plurality of parallel air ducts arranged at intervals, and a fire smoke exhaust air port is formed in the communicating position of the right-line tunnel top air duct and the left-line tunnel top air duct. The right line tunnel top air duct and the left line tunnel top air duct are each divided into a plurality of sections, a relay fan and a blocking plate are arranged at each section, and each relay fan is arranged in an independently-excavated relay ventilation duct. A ventilation shaft does not need to be arranged in the middle of the tunnel, the efficient ventilation and safe smoke exhaust functions are achieved, and the reliability, economical efficiency and emergency response capacity of tunnel operation are remarkably improved.

The utility model relates to the technical field of ventilating ducts, and discloses a stainless steel ventilating duct sealing structure which comprises a connecting pipe, a conical clamping block is fixedly connected to one side of the surface of the connecting pipe, an inserting pipe is inserted into the conical clamping block, a fixing pipe is inserted into the outer surface of the inserting pipe, and a fixing ring is fixedly connected to one end of the fixing pipe. A sliding groove is formed in the outer surface of the fixing ring, a clamping assembly is slidably connected into the sliding groove, the outer surface of the connecting pipe is in threaded connection with a threaded ring, and one side of the threaded ring is fixedly connected with a sealing ring. According to the stainless steel ventilation pipeline sealing structure, through the arrangement of the connecting pipe, the conical clamping block and the clamping assembly, when a worker installs a ventilation pipeline, the connecting pipe can be inserted into the fixing pipe, the conical clamping block slides relative to the inclined face of the clamping block, the conical clamping block penetrates into the fixing pipe, and then the conical clamping block is clamped through the clamping block; and a worker can quickly butt joint the ventilation pipeline.

The utility model discloses a pit type resistance furnace with a hot air circulation function, which relates to the technical field of heating equipment and comprises a furnace body and a furnace cover, a heating cavity is arranged in the furnace body, a ventilating duct is mounted in the heating cavity, a connecting disc is fixedly connected to the top of the ventilating duct, and a fan is arranged in the furnace cover. The top of the connecting disc is arranged at an air outlet in the edge of the bottom of the fan, a heat insulation material is jointly arranged between the inner side wall of the furnace body and the heating cavity, and heating devices are evenly installed on the inner side wall of the ventilation pipeline. According to the utility model, the heating devices are uniformly arranged on the inner side wall of the ventilation pipeline, and the spiral pipeline and the fan are arranged, so that each part of a heated object can be uniformly heated, the heating quality is improved, and the ceramic fiber heat insulation material is arranged between the inner side wall of the furnace body and the heating cavity, so that the loss of heat to the external environment is effectively reduced; the energy utilization efficiency is improved, the hot air circulation path is optimized through the arrangement of the spiral pipeline, and uniform regulation and control over the temperature in the furnace are better achieved.

This utility model discloses a spiral duct seam structure, relating to the field of ventilation duct technology. The structure includes a duct plate formed by rolling metal strip, with its seam edges connected by an interlocking structure. The interlocking structure consists of a left interlocking edge partially covering a right interlocking edge. The left interlocking edge sequentially includes a first windward section, a first double-layer pressing section, a second windward section, a first horizontal section, and a first vertical section; the right interlocking edge sequentially includes a second double-layer pressing section, a second vertical section, and a second horizontal section. The outer side of the first double-layer pressing section is pressed against the second horizontal section, the second vertical section, and the second double-layer pressing section on its upper, right, and lower sides, respectively. A reserved gap is provided between the two metal sheets of the first double-layer pressing section. By guiding and blocking dust from entering the reserved gap through the double windward sections, dust accumulation causes the gap to expand and compress the right interlocking edge, thereby adaptively enhancing the interlocking tightness and collecting dust, effectively preventing seam detachment and gas leakage, and improving ventilation quality and system safety.

The application relates to the technical field of ventilation ducts, and discloses a color steel antibacterial composite air pipe. In the application, the composite air pipe body is provided with a connecting frame one at one end and a connecting frame two at the other end, connecting screw holes are arranged at the four corners of the connecting frame one and the connecting frame two, a color steel plate layer is arranged outside the composite air pipe body, a heat preservation layer is arranged on one side of the color steel plate layer, an inner layer is arranged on one side of the heat preservation layer, an antibacterial layer is sprayed on the surface of one side of the inner layer, the inner layer is made of a high polymer material, the air flow resistance can be effectively reduced, ventilation is more smooth and efficient, the antibacterial layer can inhibit bacterial breeding, effectively improve air quality, provide health guarantee for indoor environment, the heat preservation layer can reduce heat loss in the heat transmission process, meet the building energy-saving demand, and the multilayer structure cooperates with each other, not only enhances the performance of the composite air pipe body, but also improves the durability and applicability of the composite air pipe body.

The utility model discloses drilling equipment for processing a ventilating duct, which comprises a base, the top of the base is fixedly connected with a support frame, the surface of the support frame is provided with a three-jaw chuck, and a rotating shaft of the three-jaw chuck penetrates through the support frame and is driven by a rotating motor. Through cooperation of the base, the three-jaw chuck, the sliding frame and the clamping block, the ventilation pipeline can be clamped, the ventilation pipeline can be driven to rotate automatically according to actual requirements, and then through cooperation of the movable frame, the bearing plate, the electric telescopic rod, the top plate and the drilling machine, the drilling machine can be transversely moved according to actual requirements; according to the drilling device, the surface of the ventilation pipeline can be drilled, at the moment, the drilling area can be covered through cooperation of a sliding column, a lifting block, a protection frame, a limiting groove and a limiting strip, and therefore chippings generated during drilling can be prevented from splashing everywhere, and the situation that the chippings pollute the environment can be reduced.

The application relates to a bag-in-bag-out filtering device, which relates to the technical field of biological safety and comprises the following: a ventilation duct is arranged in a box body; an air inlet and an air outlet are arranged on the box body and communicate with the ventilation duct; one or more filters are movably arranged in the ventilation duct; an opening is arranged on the box body and communicates with the ventilation duct; a sealing door is detachably arranged on the opening; a detection piece is arranged on one side of the box body close to the sealing door; and a frame body is arranged in the box body and abuts against the filter; the box body comprises a main body, an air inlet shell, an air outlet shell and a cover plate, and the ventilation duct is formed between the main body and the cover plate; the frame body and the main body are integrally bent and formed, one end of the frame body is embedded in the main body, and the other end of the frame body is bent and connected with the end of the main body. Compared with a traditional filtering box, the filtering device is integrally formed, welding leakage is avoided, the filtering device is not easy to deform, good sealing performance and pressure bearing strength are maintained, and the cost is reduced.

The utility model belongs to the technical field of ventilation pipeline heat preservation, and particularly relates to a ventilation pipeline heat preservation assembly which comprises a ventilation pipe heat preservation assembly, a fixing assembly is installed on one side of the ventilation pipe heat preservation assembly, and an auxiliary splicing assembly is installed on the other side of the ventilation pipe heat preservation assembly. The ventilation pipe heat preservation assembly comprises a shell, a first clamping groove is formed in the outer wall of the shell, an inner heat preservation layer is fixedly connected to the interior of the shell, a sliding groove is formed in the side edge of the inner heat preservation layer, a sliding plate is slidably connected to the interior of the sliding groove, and a top cover is fixedly connected to the side edge of the sliding plate. A top heat preservation layer is fixedly connected into the top cover, the top cover and the shell form a sliding structure through a sliding plate and a sliding groove, and the shell and the inner heat preservation layer are integrally arranged. And the top heat preservation layer and the inner heat preservation layer are arranged and fixed through the top cover, so that the ventilation pipe can be better wrapped in the using process, and the heat preservation effect is achieved.

1. The name of the design product: pipe valve (DN250). 2. The use of the design product: for controlling the opening and closing of the ventilation pipe of toxic gas. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

The utility model relates to the field of building pipeline mounting, in particular to a ventilating duct suspender support mounting and fastening device which comprises a mounting wrench and a lifting guide device. The mounting wrench comprises a dowel bar which is a hollow pipe, a detachable hexagonal socket head is arranged at one end of the dowel bar, and a handle is arranged at the other end of the dowel bar; the lifting guide device comprises a supporting plate, elastic clamping devices are arranged at the two ends of the supporting plate, two guide sleeves arranged at intervals are arranged below the supporting plate in the length direction, the guide sleeves are perpendicular to the supporting plate, the guide sleeves are fixed to the supporting plate through guide sleeve connecting rods, and reserved mounting holes are formed in the positions, corresponding to the guide sleeves, of the supporting plate. The hole diameter of the reserved mounting hole is larger than that of an inner hole of the hexagonal socket head, and the hole diameter of the reserved mounting hole is smaller than the outer diameter of the hexagonal socket head. According to the utility model, a constructor can complete the mounting operation of the suspender bracket on the ground, so that the construction danger can be reduced while the operation of the constructor is facilitated.

The utility model discloses an adjustable ventilating duct of a biological fertilizer fermentation tank, which belongs to the field of ventilating ducts and comprises a ventilating duct body connected with the biological fertilizer fermentation tank, an electric air valve and a fan are fixedly connected between the ventilating duct body, and the air inlet end of the ventilating duct body is fixedly connected with an air filter screen through a mounting mechanism. By means of the arranged installation mechanism, the purpose of conveniently disassembling and assembling the air filter screen on the ventilation pipeline body can be achieved, compared with a traditional installation mode, the installation mode is easy to operate, the time and labor for installation and disassembly are greatly saved, and the working efficiency is improved; the damage to threads at the air inlet end of the ventilation pipeline body caused by frequent disassembly of bolts and nuts is avoided, the problem that the installation stability and the sealing performance of the ventilation pipeline body are reduced due to thread damage is solved, the service life of the ventilation pipeline body is prolonged, and normal operation of the ventilation pipeline body is guaranteed; therefore, the normal work of the biological fertilizer fermentation tank is ensured.

The invention discloses an internal circulation ventilation rotor of a high-speed permanent magnet motor and a preparation method thereof, and relates to the technical field of motor rotor preparation. The rotor comprises a rotating shaft, a silicon steel sheet circular ring, a permanent magnet and a sheath which are concentrically arranged from inside to outside in sequence; a straight-inclined ventilation duct is arranged in the rotating shaft, a spiral ventilation duct is arranged in the silicon steel sheet ring, and the straight-inclined ventilation duct and the spiral ventilation duct jointly form an internal circulation ventilation system in the rotor. The straight-inclined air duct pushes cooling air to flow in the axial direction by means of the pressure difference formed at the two ends of the air duct when the rotor rotates at a high speed. And the spiral air channel drives the gas to move along a spiral track by utilizing a centrifugal effect generated in a rotating process. Air circulation directions of the two ventilation ducts are opposite, and air cavities at the two ends of the rotor are connected, so that self-circulation of air in the motor rotor is achieved, the cooling effect of the rotor is enhanced, and an effective way is provided for solving the bottleneck problem that temperature rise of the high-speed permanent magnet motor rotor is too high.

The utility model discloses a wind speed adjusting mechanism for building ventilation, which comprises a ventilation pipeline, the left end of the ventilation pipeline is fixedly communicated with an exhaust pipe, and the right end of the ventilation pipeline is fixedly communicated with an air inlet pipe. When the air speed in the ventilation pipeline needs to be adjusted, the pull ring is pulled rightwards, the movable block and the clamping block can be driven to move rightwards, meanwhile, the spring is compressed, the clamping block is separated from the fixed clamping groove, then the fixed plate is pulled downwards, the baffle is driven to move downwards, the baffle descends to a proper position, and the air speed in the ventilation pipeline can be adjusted. Then the pull ring is loosened, the clamping block can be driven to conduct reset motion under the elastic force effect of the spring, then the clamping block is inserted into the fixing clamping groove with the corresponding height, through the steps, the ventilation area of the air inlet pipe can be changed by changing the relative position of the baffle and the air inlet pipe, and therefore the air speed in the ventilation pipeline is adjusted.

The utility model discloses a ventilation device for safety engineering of industry and trade enterprises, which comprises a ventilation pipeline, an air inlet and an air outlet, the protective screen plate is arranged at the position of an air inlet of the ventilation pipeline, and the protective screen plate is detachably connected with the ventilation pipeline; the air guide fan is arranged at the position, away from the air inlet, in the ventilation pipeline and used for guiding air; and the filtering assembly is arranged in the ventilating pipeline, is close to the air inlet and is used for filtering air. According to the ventilation device for the safety engineering of the industrial and trade enterprises, through the structural matching design of the ventilation pipeline, the protective screen plate, the air guide fan and the filtering assembly, the device can filter ventilated air, the situation that fluff drifts around to influence the environment is avoided, and through the structural design of the filtering assembly, the ventilation effect is improved. Therefore, the device can realize a double filtering effect and is convenient to replace and maintain.

An energy storage system (1000) and a thermal management method. The energy storage system (1000) comprises first energy storage apparatuses (200) and a second energy storage apparatus (100). Each first energy storage apparatus (200) comprises a first case (210) and a first battery module (220). Each first battery module (220) is arranged in the corresponding first case (210), and each first case (210) is provided with a first connector (310). The second energy storage apparatus (100) comprises a second case (10) and a second battery module (20) arranged in the second case (10). The second case (10) is provided with a second connector (320). Each first connector (310) is configured to be in pluggable connection with the second case (10) of the second energy storage apparatus (100) or with the second connector (320) of the other first energy storage apparatus (200). The first connector (310) and the second connector (320) jointly form a ventilation duct (330). The ventilation duct (330) is provided with a switch. The switch is configured to control the open / closed state of the ventilation duct (330), such that the first case (210) is in communication with or isolated from the second case (10) connected thereto, or two adjacent first cases (210) are in communication or isolated.

According to the cold and hot microclimate adjusting system for air-cooled heat pump cluster installation and the control method, through the triple synergistic effect of the closed ventilation pipeline, the draught fan and the high-pressure micro-mist spraying system, the overall operation performance is effectively improved, and energy consumption is reduced; the sealing pipeline and the directional fan thoroughly isolate cross back suction of exhaust air and inlet air between units, and cold air and hot air mixing is eliminated from the source. In the summer mode, the high-pressure micro-mist nozzle efficiently reduces the air inlet temperature through a sensible heat and latent heat dual heat exchange mechanism, and the heat island effect is relieved; in winter, the cold island effect is relieved through pure physical isolation; and the dynamic adjusting mechanism ensures that the air inlet temperature is always in a target interval by optimizing the fan rotating speed, the nozzle spacing and the water flow in real time. According to the scheme, the technical contradiction that physical isolation and temperature regulation are difficult to consider at the same time is overcome, and the operation energy efficiency of the unit is further optimized.

The present application relates to the technical field of tunnel dust removal, and particularly relates to a tunnel construction ventilation and dust removal device and a dust removal method, which aims to solve the problem of poor dust cleaning efficiency and easy dust accumulation in tunnel construction. The device comprises a ventilation pipeline, a dust suction device and a spraying device, the dust suction device and the spraying device are respectively arranged at the two side ports of the ventilation pipeline, and further comprises a cleaning assembly arranged between the dust suction device and the spraying device; the ventilation pipeline is further connected with a sewage discharge channel, the dust suction device adsorbs the dust in the tunnel and separates the dust into the ventilation pipeline, and the cleaning assembly adheres the separated dust and cleans the dust through the spraying device. The spraying device is used to moisten the ventilation pipeline, reduce dust dispersion, discharge the treated dust to the sewage discharge channel, greatly improve the dust removal efficiency, and clean the ventilation pipeline through the spraying device, so that the dust accumulation does not affect the subsequent dust removal quality.

The utility model relates to the technical field of optical precision injection molds, and discloses an efficient optical precision injection mold temperature control system which comprises a rectifier and a power line. The direct-current positive and negative rotation solid-state relay is electrically connected to Peltier temperature control equipment through a power line, a heat dissipation device is arranged on the top of the Peltier temperature control equipment, a fixed mold core is arranged outside the Peltier temperature control equipment, and an insert is arranged on the upper portion of the fixed mold core; and one end of the ventilation pipeline is fixedly connected to the output end of the air blower. According to the utility model, the direct current rectified by the rectifier is introduced into the electric copper sheet through the direct current positive and negative rotation solid-state relay, so that the problem of non-uniform product shrinkage due to limited heat transfer performance of water and oil in the prior art and scheme such as water and oil circulation temperature control is solved.