2304 results about "Ventilation tube" patented technology

The invention relates to the field of grain depot ventilation management, and discloses an automatic management system for ventilation in intelligent grain depot production, which comprises an environmental parameter monitoring module, a data processing and analysis module, an intelligent ventilation decision module, a ventilation equipment linkage control module and a dynamic feedback optimization module, the environmental parameter monitoring module is used for collecting temperature, humidity and gas concentration data in the bin in real time through the Internet of Things communication unit; the data processing and analyzing module is connected with the environment parameter monitoring module; the intelligent ventilation decision-making module receives the multi-dimensional data atlas, analyzes the temperature gradient, the humidity sensitivity index and the mildew risk value in the atlas through a dynamic classification algorithm, and fuses external meteorological data; the ventilation equipment linkage control module is used for receiving the instruction sequence of the intelligent ventilation decision module; the dynamic feedback optimization module is used for monitoring the efficiency coefficient and the grain pile environment change rate in the ventilation process; the system has the advantages that the ventilation precision and efficiency are improved, and granary environment management is optimized.

The invention provides a permafrost region ventilation pipe foundation design method based on a heat balance principle, and aims to keep heat balance of permafrost on the lower portion of a foundation and ensure long-term heat stability of the foundation. According to the method, meteorological data, soil physical parameters and permafrost upper limit and ground temperature distribution information are collected so as to evaluate whether additional protection measures are needed or not and determine the burying height of the ventilation pipe foundation. And based on the selected ventilation pipe configuration, the air speed in the pipe is calculated by using a corresponding air speed calculation formula, and the convective heat transfer coefficient is determined accordingly. And determining the diameter of the pipeline by combining the convective heat transfer coefficient and the economical efficiency. And the cooling radius and the optimal operation mode of the ventilation pipe foundation are further determined, so that heat balance at the bottom of the foundation is ensured, and permafrost at the lower part of the foundation is effectively protected. The design method is simple, convenient, rapid and accurate, and has important engineering application value and wide applicability.

The utility model discloses a motor base structure easy to radiate heat, which belongs to the technical field of motors and comprises a junction box base, the junction box base is arranged on a base shell, a plurality of ventilation slot assemblies are arranged on the periphery of the upper portion of the base shell, and a plurality of ventilation pipe assemblies are arranged between every two adjacent ventilation slot assemblies. A plurality of heat dissipation fins are further arranged on the upper portion of the machine base shell, an efficient heat dissipation system is jointly formed through the ventilation groove assembly, the ventilation pipe assembly and the heat dissipation fins, the ventilation groove assembly and the ventilation pipe assembly accelerate air flow in the machine shell, and the heat dissipation fins increase the heat dissipation area. Therefore, heat in the inner cavity of the motor can be dissipated to the outside more quickly, the internal temperature of the motor can be effectively prevented from being too high, the service life of the motor is prolonged, and the working stability is improved.

The invention discloses a single-channel air supply type mine ventilation device, and relates to the technical field of mine ventilation devices. The single-channel air supply type mine ventilation device comprises a ventilation pipe, one side of the ventilation pipe is fixedly connected with an air extracting pump, one end of the air extracting pump is fixedly connected with an air supply pipe, the outer surface of the air supply pipe is fixedly connected with a connecting pipe, the outer surface of the connecting pipe is provided with an air outlet groove, and one end of the connecting pipe is fixedly connected with a removing mechanism. According to the mine ventilation device, when the mine is ventilated through the clearing mechanism and the air supply type ventilation device, air needs to be exhausted from the outside to enter the mine, but during air exhausting, dust and cotton fibers can enter the ventilation device from the outside and can shield the ventilation position, and the dust at the ventilation opening is cleared away through the clearing mechanism during air supply; the concentration of suspended particles in air can be reduced by removing dust, the quality of air in a mine is improved, and the risks of respiratory diseases and other health problems of workers are reduced.

The invention provides an electrical control box convenient for heat dissipation, and relates to the technical field of electrical control boxes, the electrical control box comprises a control box body, an air blower is fixedly mounted on the surface of the upper end of the control box body, a wind direction adjusting assembly is arranged in the control box body, the air blower is connected with the wind direction adjusting assembly, and box openings are formed in the two sides of the control box body. A gear is driven by the output end of a servo motor to rotate, a rotating disc is made to rotate, meanwhile, a ventilation pipe can be driven to rotate and rotate around a device, wind is blown to the surface of the device from the periphery, and at the moment, stretching and retracting are conducted through the output end of a hydraulic cylinder, so that the device can be conveniently cleaned. And at the moment, a mounting ring plate can be driven to move up and down, meanwhile, a ventilation pipe can be driven to move up or down, and at the moment, a plurality of air outlets can be driven to move up and down, so that blown air can be fully blown to the surface of the device, and the device is fully cooled.

The invention relates to the technical field of dust concentration measurement, and particularly discloses a dust concentration intelligent detection device and method, the dust concentration intelligent detection device comprises a shell assembly, the shell assembly comprises a main shell, a ventilation pipe is arranged on one side of the main shell, a top shell is arranged above the ventilation pipe, a bottom shell is arranged below the ventilation pipe, and an air blowing assembly is arranged in the ventilation pipe; a rotating assembly is arranged in the main shell, an air blowing assembly is arranged outside the rotating assembly, a dust collection assembly is arranged on one side of the rotating assembly, and a measuring assembly is arranged on the bottom side of the air blowing assembly. And under the reflection of the oblique light source of the measuring assembly, by utilizing the sensitivity of light reflection, a descending minimal variable is converted into a moving huge variable after the light is reflected, so that the magnification observation of the weight is facilitated, and the accuracy of the experiment is improved.

The invention discloses a tracheotomy vent tube which comprises a vent tube body, a vent cavity is formed in the vent tube body, a sleeve bag used for sealing a gap between the trachea of a patient and the vent tube body is arranged on the vent tube body, and the sleeve bag is filled with sponge-shaped materials, so that the surface of the sleeve bag is in a fixed shape and can deform. According to the tracheotomy ventilation tube, due to the fact that the sleeve bag arranged on the ventilation tube is filled with the sponge-shaped material, the surface of the sleeve bag has a fixed shape and can deform, and when the sleeve bag is inserted into the cut trachea of a patient, the contact pressure between the sponge-shaped material and the inner wall of the trachea of the patient is small due to the flexible characteristic of the sponge-shaped material; insertion damage to a patient is avoided, the trachea cannula can automatically recover to the original shape after being inserted, the gap between the trachea of the patient and the breather pipe is sealed, and the sealing performance is better.

The invention relates to the technical field of laboratory temperature and humidity control. The laboratory temperature and humidity control system comprises a control terminal, a monitoring module, a dynamic prediction analysis module and a partition adjustment module, the monitoring module comprises a temperature sensor arranged on the surface of a wall and equipment, a humidity sensor arranged in a ventilation pipeline, dew point detection units of a fresh air inlet and a return air inlet, a pressure sensor below the ground and a top infrared thermal imaging unit. The dynamic prediction analysis module is used for receiving the equipment calorific value and personnel density information monitored by the monitoring module and outputting a temperature and humidity change trend; the partition adjusting module comprises a temperature control plate array, an air conditioning unit and a humidity adjusting unit, a temperature control plate switches a heat storage / release state through current pulse, and the humidity adjusting unit is used for dehumidification or humidification; the control terminal regulates and controls the partition module according to the prediction result, and intelligent regulation of laboratory temperature and humidity is achieved.

The present invention is an air separation tower foundation structure, comprising a foundation structure body, the bottom of the foundation structure body is connected to a pile foundation, an isolation waterproof layer capable of separating and layering the foundation structure body is arranged in the foundation structure body, at least one ventilation pipe capable of cold insulation is arranged in the foundation structure body, an air separation tower connection part is arranged on the foundation structure body, the air separation tower connection part comprises multiple cold insulation layers, and a surface layer is laid on the top of the foundation structure body. The air separation tower foundation structure effectively isolates the air separation tower from the foundation structure body through multiple cold insulation measures, improves the cold insulation effect, reduces the freezing and cracking damage of the foundation structure body, and improves the service life.

The invention relates to the technical field of permafrost region roadbed cooling, and particularly discloses a permafrost region circulating ventilation roadbed cooling system fused with machine learning. The volume moisture content, the ground temperature and the deformation of the lower part of the roadbed are respectively monitored through a moisture sensor and a distributed optical fiber sensor; the machine learning algorithm module comprises a Prohet time sequence model, and is used for collecting, analyzing and predicting future temperature and ground temperature changes through the Prohet time sequence model; and the control module comprises a fuzzy control strategy and a PID control algorithm. By fusing environmental data and roadbed state data of an artificial intelligence algorithm, opening and closing of the ventilation pipe are automatically controlled, and the problem of thaw collapse deformation of a roadbed in a permafrost region is eliminated and relieved.

The invention discloses a ventilation structure for a box-type substation and the box-type substation. The ventilation structure comprises a rotating mechanism arranged at the top of the box-type substation and a flat ventilation pipe in a horizontal state. A venturi air duct is arranged in the flat ventilation pipe, and a negative pressure hole extending upwards is formed in the top wall of the throat portion of the venturi air duct and communicated with the interior of the box-type substation through an air pipe. The ventilation structure can automatically rotate to one end windward under the action of wind power. The negative pressure hole is formed in the top wall, and gravity is effectively utilized for dust prevention; the inclined arrangement further strengthens the dustproof effect. The air pipe penetrates through the rotating mechanism, it is ensured that the ventilation pipe and the air pipe move as a whole, and automatic windward is not affected. Efficient passive heat dissipation and excellent dust prevention of the box-type transformer substation are achieved, the box-type transformer substation is particularly suitable for dusty or sand-dust environments, the equipment reliability is improved, and the maintenance requirement is lowered.

The utility model discloses a heat dissipation system of a high-voltage frequency converter, which comprises a machine room, a frequency converter cabinet, an air conditioner, a cooling fan, a ventilation pipe, a temperature sensor, a micro differential pressure sensor and a control box, the air conditioner and the frequency converter cabinet are arranged in the machine room, and an indoor air outlet of the ventilation pipe is arranged at the top of the frequency converter cabinet. An outdoor air outlet of the ventilation pipe extends out of the machine room, the cooling fan is arranged in the ventilation pipe, the two ends of the cooling fan are provided with an indoor exhaust valve and an outdoor exhaust valve respectively, the machine room is provided with a room door and a ventilation window, a shutter is arranged on the outer side of the ventilation window, a primary filter screen is arranged on the inner side of the ventilation window, and the temperature sensor is arranged on the outer wall of the machine room. And the control box and the micro differential pressure sensor are arranged on the inner wall of the machine room. The internal and external circulation device can be automatically switched according to the indoor and outdoor temperature difference and the indoor pressure, the indoor environment temperature of the frequency converter is ensured to be within a reasonable range, negative pressure can be prevented from being generated in the frequency converter, and dust can be effectively prevented from entering the frequency converter.

The utility model discloses an oil filter for hydraulic oil circulation, and relates to the technical field of hydraulic systems. The device comprises a filter shell, a sealing cover and a ventilation cleaning frame, a filter element is clamped and fixed to the center in the filter shell, the sealing cover is clamped and fixed to the top of the filter shell, a liquid pump penetrates and is clamped to the center of the top of the sealing cover, an oil pumping pipe penetrates and is clamped to one end of the peripheral face of the liquid pump, and a semiconductor refrigeration assembly and a heating pipe are clamped and fixed to the peripheral face of the oil pumping pipe; a ventilation cleaning frame sleeves the peripheral surface of the filter element, a ventilation pipe and a lifting cylinder are arranged at the top of the ventilation cleaning frame, and an air pump penetrates through and is clamped to the top of the peripheral surface of the ventilation pipe. By arranging the filter shell, the sealing cover and the ventilation cleaning frame, the problems that the filter screen is abraded due to long-time friction between the scraper blade and the filter screen, a large amount of impurities in hydraulic oil can be separated out within different temperature ranges, and the filtering effect on the hydraulic oil within a fixed temperature range is poor are solved.

The utility model relates to the technical field of air conditioner pipelines, and discloses a novel air supply pipeline which comprises a pipeline body. An air supply cavity is formed in the pipeline body, and a plurality of air outlet holes which are formed at intervals and communicate with the air supply cavity are formed in the side face of the pipeline body; a ventilation pipe is installed in the air supply cavity, a plurality of air fanning pieces arranged at intervals are installed on the side face of the ventilation pipe, and the multiple air fanning pieces are arranged towards the multiple air outlet holes correspondingly; a ventilation cavity is formed in the ventilation pipe, an air inlet communicated with the ventilation cavity is formed in one end of the ventilation pipe, an air guide piece facing the multiple fanning pieces is installed on the pipeline body, the air guide piece is communicated with the end, away from the air inlet, of the ventilation pipe, and the air guide piece is used for blowing air to the multiple fanning pieces. The utility model provides a novel air supply pipeline which solves the problem that air exhaust of an air supply pipeline is not uniform.

The invention provides a self-adaptive throttling and ventilating lubricating oil system, which belongs to the field of aero-engines and comprises a first bearing cavity, a second bearing cavity, a third bearing cavity, a lubricating oil tank, a lubricating oil pump, a ventilator and an electric valve, each bearing cavity is connected with the ventilator and the lubricating oil tank through a ventilation pipeline, each bearing cavity is connected to the lubricating oil pump through an oil return pipeline, the lubricating oil pump supplies oil to each bearing cavity through an oil supply pipeline, and the lubricating oil pump is connected with the lubricating oil tank through the oil return pipeline and an oil suction pipeline; wherein the second bearing cavity and the third bearing cavity are communicated through the ventilation pipeline to realize common throttling ventilation, the electric valve is arranged on the ventilation pipeline for common throttling ventilation, and the electric valve is connected with the sealing bleed air of the second bearing cavity and / or the third bearing cavity and is used for sensing and measuring the pressure of the bearing cavity and the corresponding sealing bleed air pressure so as to obtain the sealing pressure difference; when the sealing pressure difference exceeds the threshold value range, the electric valve changes the internal throttling diameter according to actuation, then the throttling equivalent diameter of the ventilation pipeline is adjusted, and finally the pressure of the bearing cavity is dynamically adjusted.

The invention relates to a crankcase forced ventilation system and a control method thereof, a supercharged engine and a vehicle, and belongs to the technical field of engines. The crankcase forced ventilation system comprises an air inlet system of an engine, a first ventilation pipeline and a second ventilation pipeline, the air inlet system comprises an air filter, a supercharger, a throttle valve and an air inlet manifold which are sequentially communicated through pipelines, the air inlet system is communicated with an air cylinder of the engine through the air inlet manifold, and the first end of the first ventilation pipeline is communicated with a crankcase; the first ventilation pipeline is provided with a first crankcase forced ventilation PCV valve, the second ventilation pipeline is provided with a second crankcase forced ventilation PCV valve, the first end of the second ventilation pipeline is communicated with the crankcase, the second end of the second ventilation pipeline is communicated with a pipeline connected between the supercharger and the air filter, and the second ventilation pipeline is provided with a vacuum pump. When the engine is in various working conditions, waste gas in the crankcase can be smoothly circulated while the pressure in the crankcase is small.

The invention relates to the technical field of tunnel construction, and discloses a ventilation device for building tunnel construction, which comprises a ventilation pipe, a fan, a dust filtering assembly and a telescopic exhaust assembly, the dust filtering assembly and the fan are sequentially arranged at the air inlet end of the ventilation pipe, and the telescopic exhaust assembly is arranged in the ventilation pipe and communicates with the fan. The telescopic exhaust assembly comprises a telescopic air passing piece and a telescopic exhaust piece, the telescopic air passing piece is arranged in the ventilation pipe and communicates with the draught fan, sliding openings are formed in the two sides of the ventilation pipe, the telescopic air passing piece is in sliding fit with the sliding openings, and inclined groove openings symmetrically distributed along the sliding openings are formed in the side face of the ventilation pipe. Through dynamic adjustment of the telescopic air passing piece and the telescopic air exhaust piece, more air exhaust holes can be gradually opened in the deep position of the tunnel, so that the ventilation range is expanded, air introduced into the deep position of the tunnel is more uniform, the problem that ventilation of a traditional ventilation pipe is insufficient in the deep position is solved, it is ensured that constructors can obtain enough fresh air, and the construction efficiency is improved. The health and the safety are ensured.

The invention relates to the technical field of ventilation equipment, in particular to a ventilation pipe and draught fan connecting structure and a connecting method thereof.The ventilation pipe and draught fan connecting structure comprises a self-cleaning connecting mechanism installed between a ventilation pipe and a fresh air ventilator, and the self-cleaning connecting mechanism comprises an assembled flow guide shell, an airflow transmission seat, an annular filtering layer, a positioning cleaning piece and a wind power testing piece; the air inlet end of the assembled flow guide shell is connected with the fresh air machine, and the air outlet end of the assembled flow guide shell is connected with the ventilation pipe. The airflow transmission seat is mounted in the assembled flow guide shell, and the airflow transmission seat further comprises a rotating resistance piece mounted on the assembled flow guide shell; the annular filter layer is mounted on the airflow transmission seat; the positioning cleaning piece is mounted between the airflow transmission seat and the annular filter layer, and the cleaning surface of the positioning cleaning piece is attached to the outer wall of the annular filter layer; according to the wind power testing mechanism, the maintenance convenience can be effectively improved, and meanwhile, the service life of the mechanism is prolonged.

The invention belongs to the technical field of medical instruments. The invention discloses a novel multifunctional laryngeal mask which comprises a breather pipe, one end of the breather pipe is connected with an external ventilation loop through a connector, and the other end of the breather pipe is provided with a mask body used for ventilation, exhaust and secretion suction. The mask body is provided with a mask bag structure which is matched with the mask body so as to accord with the throat and spine characteristics of a patient, so that the stable limitation on the mask body is met, and safe sealed ventilation is realized. The device has the advantages that the device can accord with throat and spine characteristics of a patient to realize safe sealed ventilation, and the risk of regurgitation and aspiration due to the fact that gas enters the stomach of the patient is not easily caused.

The invention provides a foundation structure of a fused salt storage tank of a photo-thermal power station, which comprises a composite thermal insulation layer and a reinforced concrete retaining wall, the composite thermal insulation layer is arranged below a tank bottom plate of the fused salt storage tank, and the composite thermal insulation layer comprises a top cushion layer, ceramic fiber cloth and a ceramsite soil layer which are sequentially arranged downwards; an annular beam is arranged at the top of the composite heat preservation layer and composed of an annular steel plate and a heat-resisting concrete layer which are sequentially arranged below the tank bottom plate, a protective ring wall is arranged in the circumferential direction of the composite heat preservation layer, and a concrete foundation cushion layer with a built-in ventilation pipe and a built-in temperature measuring sleeve is arranged below the composite heat preservation layer. A circle of retaining wall is arranged on the periphery of the retainer wall, and the space between the retaining wall and the retainer wall is filled with compacted plain soil. The foundation structure reduces the leakage risk of molten salt.

The utility model discloses an air temperature type vaporizer defrosting device, which relates to the technical field of defrosting devices and comprises a fixing frame, two cross rods are fixed at the bottom of the fixing frame, two universal wheels are mounted at the bottoms of the cross rods, a defrosting mechanism is arranged at the bottom of the fixing frame, and the defrosting mechanism is arranged on the fixing frame. The defrosting mechanism comprises a fan, an air inlet pipe, a heating box, a ventilation pipe, a round shell, an air conveying pipe, an annular shell and two air outlet pipes, and a transmission mechanism is arranged in the defrosting mechanism. According to the air temperature type vaporizer defrosting device, the transmission mechanism is arranged, the draught fan and the heating box are started, the draught fan sucks external air, the air enters the heating box, and the heated air is conveyed into the round shell, so that the air pushes the blade plate and the rotating rod to rotate and then enters the annular shell through the air conveying pipe; and then the air enters an air outlet pipe and is discharged from an air outlet hole to heat and defrost the air temperature type vaporizer, meanwhile, a rotating rod drives a connecting rod to rotate, and the connecting rod drives the air outlet pipe to rotate.

The present invention discloses an intelligent linkage low-temperature grain storage multi-functional ventilation system and its ventilation method, which includes a ventilation pipe network, a main controller, and several refrigeration and air-conditioning units, temperature sensors, etc. connected to the main controller. The ventilation pipe network includes an upper-layer annular ventilation duct, a bottom-of-bunker ventilation floor grille, a vertical ventilation duct along the corner of the bunker wall, etc. Among them, the upper-layer annular ventilation duct is installed parallel to the ground below the grain loading line on the side wall of the granary; the bottom-of-bunker ventilation floor grille includes a lower-layer annular ventilation floor grille and a semi-circular cross-section ventilation floor grille arranged in a "mountain" shape; the vertical ventilation duct along the corner of the bunker wall has an isosceles triangle cross-section, one group of which is connected to the upper-layer annular air duct, and the other group is connected to the lower-layer annular floor grille. A closed air valve is provided on each branch air duct, and the opening and closing are controlled by the main controller according to the requirements of different grain storage temperature control working conditions; the present invention can systematically solve the problem of grain storage loss caused by reasons such as "local heating", "blind ventilation", and "cold core and hot skin" during storage.

The utility model discloses a display device for vehicle-road cooperation roadside perception of an unmanned vehicle, and relates to the technical field of unmanned vehicle display devices. The anti-blocking heat dissipation display comprises a display body, a protective shell is arranged at the rear end of the display body, a sunshade cover is rotationally connected to the surface of the protective shell, an anti-blocking heat dissipation mechanism is arranged at the rear end of the protective shell, the anti-blocking heat dissipation mechanism comprises a ventilation barrel, and the ventilation barrel penetrates through and is fixedly connected to the rear end of the protective shell. The anti-blocking heat dissipation mechanism is arranged, so that when the displayer body is overheated and needs heat dissipation, a motor can be started to drive a rotating shaft to rotate, and the rotating shaft rotates to drive a heat dissipation fan to rotate to accelerate flowing of air in the protection shell and external air so as to improve heat dissipation; meanwhile, through cooperation of a rotating gear, a toothed bar, a pressing plate, a pressing rod and other assemblies, a cleaning brush can be driven to repeatedly move up and down to clean the filter screen, and the filter screen is prevented from being blocked to affect the ventilation effect.

The utility model discloses an outdoor explosion-proof power distribution cabinet with a heat dissipation function, which relates to the technical field of heat dissipation of power distribution cabinets and comprises a cabinet body, a ventilation pipe is mounted on one side of the cabinet body, a dustproof net is mounted in the ventilation pipe, an exhaust fan is rotatably mounted on the outer side of the dustproof net, a filter plate is mounted on the other side of the cabinet body, and a heat dissipation fan is mounted on the filter plate. An air inlet fan is rotationally installed on the outer side of the filter plate, a driving mechanism used for driving the exhaust fan and the air inlet fan to rotate synchronously is arranged at the top of the cabinet body, and a cooling mechanism is arranged in the cabinet body. According to the utility model, when the exhaust fan exhausts hot air in the cabinet body, the air inlet fan is driven to suck external fresh air into the cabinet body, air circulation is accelerated, the air entering the cabinet body is converted into cold air through the cooling mechanism, and the cold air is uniformly distributed into the cabinet body, so that rapid cooling of the cabinet body is realized, and the service life of the cabinet body is prolonged. The ventilation effect of the cabinet body is optimized, and the heat dissipation efficiency of the equipment is improved.

The utility model relates to the technical field of vehicle parts, and provides a seat and a vehicle, the seat comprises a backrest framework, a cushion framework and a seat basin assembly, the first end of the seat basin assembly is rotatably connected to the first end of the cushion framework, and the backrest framework is rotatably connected to the second end of the cushion framework; the seat further comprises a lifting mechanism, the lifting mechanism comprises a first connecting piece and a second connecting piece, the second connecting piece is rotationally connected to the backrest framework, the middle position of the first connecting piece is rotationally connected with the second end of the cushion framework, and the two ends of the first connecting piece are rotationally connected with the second end of the seat basin assembly and the second connecting piece correspondingly. And the first connecting piece is used for pushing the second end of the seat basin assembly to rotate upwards. Therefore, the lifting mechanism can lift a ventilation pipeline or a heating pipeline arranged at the lower end of the seat basin assembly along with the seat basin assembly, so that the seat backrest and the seat cushion are in a level state when the seat backrest is put down backwards under the condition that other comfort functions of the seat are not influenced.

The invention relates to the technical field of switched reluctance motors, and particularly discloses a switched reluctance motor capable of actively ventilating and cooling. Comprising a ventilation pipe, one end of which is provided with a high-pressure air pump. The switched reluctance motor comprises a high-pressure air pump, an annular ventilation plate, the annular ventilation plate is arranged to be an annular shell internally provided with an annular cavity, first small ventilation holes are formed in the inner side of the annular ventilation plate, and the outer side of the high-pressure air pump is sleeved with and fixedly connected with an auxiliary cleaning mechanism. Air is filled into the inner side of an annular ventilation plate and then passes through an exhaust round hole to be exhausted out of a plugging device for ventilation type heat dissipation, so that the problem that the heat dissipation performance of the motor is generally improved by modifying a motor shell in the existing cooling means, and the motor is difficult to actively cool is solved; the arc-shaped baffle is arranged on the inner wall of the annular ventilation plate to resist gas sprayed in by the high-pressure air pump, and the situation that the gas sprayed in from the ventilation pipe is directly sprayed out from a part of first small ventilation holes on the opposite side and is difficult to evenly spray is prevented.

The invention discloses a moistureproof and shockproof electrical cabinet, and relates to the technical field of electrical cabinets, the moistureproof and shockproof electrical cabinet comprises an electrical cabinet body and a moistureproof assembly, the front side of the electrical cabinet body is connected with a protective cabinet door through a hinge, and the moistureproof assembly is arranged on the surface of the electrical cabinet body. The moisture-proof assembly comprises a ventilation fan, a connecting cylinder, a dustproof net disc, a water absorption cotton disc, a ventilation pipe, moisture absorption cotton, a containing cavity, a ventilation opening and a storage drawer, the ventilation fan is arranged on the right side of the electrical cabinet body, the connecting cylinder is installed on the right surface of the ventilation fan, the connecting cylinder and the ventilation fan are of an integrated structure, and the dustproof net disc is arranged at the right end of the inner side of the connecting cylinder. A water absorption cotton disc is installed at the left end of the inner side of the connecting cylinder. According to the moisture-proof and shock-proof electrical cabinet, through the moisture-proof assembly, the interior of the electrical cabinet can be kept dry through continuous ventilation and the auxiliary effect of a drying agent, the situation that internal components are damaged due to the fact that the interior is affected with damp is prevented, and through the shock-proof assembly, the overall shock-proof performance of the electrical cabinet can be improved through multiple shock-proof mechanisms.

The invention discloses an integrated prefabricated pump station with a self-cleaning function, and relates to the technical field of integrated prefabricated pump stations, the integrated prefabricated pump station comprises a base, a base, a barrel structure, a water inlet structure, a water outlet structure, a top cover, a ventilation pipe, an access hole cover and an electric cabinet, impurities attached to the bottom and the wall face of the pump station can be effectively scraped off, pipeline blockage caused by long-time accumulation of the impurities is prevented, the transportation efficiency and the operation stability of the pump station are ensured, the water inlet structure can separate large impurities out and conduct dehydration treatment, transportation of the large impurities is facilitated, and the service life of the pump station is prolonged. Meanwhile, impurities attached to the inner wall of the separation barrel can be scraped, the service life of the separation barrel is prolonged, a water outlet structure can spray water into the pump station regularly when the pump station is not used for a period of time, impurities deposited at the bottom are effectively diluted, subsequent pumping drainage through a sludge pump is facilitated, and it is ensured that the pump station is in a good working state for a long time.

The utility model relates to a storage tank for color master batches, which comprises a tank body, a cylinder body is arranged in the tank body, a cavity is reserved between the cylinder body and the tank body, the top of the tank body and the top of the cylinder body are arranged in a sealed manner, a plurality of uniformly distributed first vent holes are formed in the inner wall of the cylinder body, and a vent pipe communicated with the cavity is arranged at the bottom in the cylinder body. A plurality of uniformly distributed second ventilation holes are formed in the side wall of the ventilation pipe, a cover body is arranged at the top of the tank body, and a hot-air blower is connected to the bottom of the tank body; according to the color master batch storage tank, hot air is introduced into the tank body through the hot air blower, and the hot air can be blown out through the first vent hole and the second vent hole to dry stored color master batches, so that the color master batches are prevented from caking in the storage process, and the influence on the quality of the color master batches in subsequent use is avoided.

The invention discloses a laboratory ventilation system and method, and relates to the field of ventilation management.The system comprises a daily ventilation module, an abnormal ventilation module and a filtering processing module, and the daily ventilation module is responsible for collecting laboratory environment information and analyzing the laboratory environment information based on an environment risk model; and the abnormal ventilation module is responsible for collecting laboratory air information and carrying out analysis based on a ventilation risk model so as to judge whether a ventilation mode of the laboratory needs to be replaced or not, and if the ventilation mode needs to be replaced, the system can collect pollution position information and analyze the pollution position information so as to obtain an abnormal ventilation scheme. The filtering processing module collects abnormal ventilation data according to the abnormal ventilation scheme, analyzes the abnormal ventilation data and finally gives an early warning according to an analysis result, the ventilation efficiency is improved, the safety of a laboratory is enhanced, and the ventilation cost is reduced.