2406 results about "Air change" patented technology

The invention discloses a clean workshop production environment quality control method and system, and relates to the technical field of environment control, and the method comprises the steps: constructing a multi-layer sensing network, deploying temperature and humidity, particle concentration, pressure difference and VOC gas sensors, and carrying out the preprocessing data of each node through edge calculation; fusing the data based on a dynamic weight distribution algorithm, adjusting the weight according to the confidence score, and generating an environment quality comprehensive index; an LSTM pollution diffusion prediction model is established, a diffusion path is calculated in combination with airflow field simulation when pollution suddenly occurs, and an emergency response partition strategy is generated; fresh air system control parameters are optimized through reinforcement learning, a dynamic ventilation frequency adjusting model is established based on a real-time environment quality index and historical energy consumption data, and energy consumption is minimized through a Q-learning algorithm on the premise that cleanliness is guaranteed; a double-threshold early warning mechanism is set, local supercharging purification is started when a comprehensive index exceeds a first-level threshold, a second-level threshold is linked with adjacent areas to form a dynamic isolation barrier, and an intervention scheme effect is simulated through a digital twin system.

The invention relates to the technical field of combustible gas detectors, in particular to a combustible gas detector with an underground Internet of Things function, which comprises a gas exchange seat, a mounting mechanism rotatably connected to the bottom of the gas exchange seat, a combustible gas detector main body fixedly mounted at the bottom of the gas exchange seat, and a fixing frame fixedly connected to the bottom of the gas exchange seat. A movable frame is arranged on the fixed frame in a sliding fit mode, a protective cover is rotatably connected to the interior of the movable frame, an automatic maintenance mechanism is rotatably connected to the movable seat, and in the using process of the combustible gas detector, dust on the surface of the gas sensor is cleaned and maintained regularly through the automatic maintenance mechanism; the dust on the surface of the gas sensor can be automatically cleaned by utilizing the brush frame which rotates and swings in a reciprocating manner, the sensor can accurately read the gas concentration, the possibility of false alarm and missing alarm is reduced, the manual cleaning frequency is reduced through an automatic maintenance mechanism, and the labor cost and the maintenance workload are reduced, so that the service life of the sensor is prolonged.

The utility model relates to the technical field of power distribution cabinets, and in particular to a ventilation mechanism of a positive pressure explosion-proof power distribution cabinet, comprising a power distribution cabinet, wherein an air inlet device is arranged on the top of the power distribution cabinet, the air inlet device comprises a box body arranged on the top of the power distribution cabinet, an air inlet is opened on the side of the box body, a dust cover is arranged on the outer side of the air inlet, the bottom of the box body is connected with the inside of the power distribution cabinet body through a through hole opened on the top of the power distribution cabinet body, a filter bin is arranged inside the box body, a heat dissipation device is arranged at the bottom end of the inside of the power distribution cabinet body, the heat dissipation device is composed of a heat exchange box, a cooling pipe and a support box, and is used to reduce the heat generated by the long-term use of electrical components in the cabinet. The ventilation mechanism of the positive pressure explosion-proof power distribution cabinet realizes the replacement of clean gas inside the power distribution cabinet through the air inlet device and the air outlet pipe, realizes efficient heat dissipation inside the power distribution cabinet through the unique heat dissipation device, increases practicality, and further improves the safety of the positive pressure explosion-proof power distribution cabinet.

The invention relates to the technical field of computer aided design, in particular to an energy-saving building design method based on digital simulation, which comprises the following steps: analyzing air velocity, temperature gradient, density and pressure distribution based on indoor aerodynamic parameters, identifying air vortex structure characteristics, and generating an energy-saving building environment data set. According to the method, aerodynamic characteristics in a building are accurately recognized, the vortex structure analysis capacity is improved, the air flowing path is optimized, aerodynamic parameters are combined, thermal resistance and heat conduction materials are matched, the building envelope layer is adjusted, heat flow transmission is guided, heat loss is reduced, the heat energy utilization rate is increased, and the spectral characteristics of the materials are adjusted according to illumination redundancy; the lighting efficiency is optimized, the heat load is reduced, outer wall heat transfer is optimized in combination with airflow characteristics, the ventilation rate is dynamically regulated and controlled, airflow short circuit is avoided, heat flow, illumination and ventilation parameters are integrated, precise optimization of building energy consumption is achieved, and the energy efficiency regulation and control level is improved.

The utility model relates to the technical field of piglet feeding isolators, in particular to an intelligent sterile piglet feeding isolator. The device comprises a feeding bin and a PLC, the bottom of the feeding bin is connected with a base, the top of the feeding bin is connected with an air bin, an air inlet and exhaust system is arranged in the air bin and electrically connected with the PLC, and the PLC can control work of the air inlet and exhaust system; a plurality of glove connectors are arranged on the front side wall and the rear side wall of the feeding bin, each glove connector is connected with an operation glove, and the operation gloves extend into an inner cavity of the feeding bin. The air intake and exhaust system can provide a warm environment for piglets fed in the feeding bin, the temperature can be set according to needs, meanwhile, the feeding bin has an overheating protection function, and animals are prevented from being hurt by too high temperature; the air intake and exhaust system can control the number of air exchange times and the differential pressure gradient in the feeding bin, and unattended operation can be achieved according to set parameters.

The invention discloses a ventilation and air exchange device for a green building. The ventilation and air exchange device comprises a ventilation and air exchange box, a mounting plate, a ventilation and air exchange opening, a rotary air disc and fan blades. Mounting plates are fixed to the two ends of the two sides of the ventilation box, fixing pins penetrate through the interiors of the mounting plates, one ends of the fixing pins extend into the green building wall, and ventilation ports are formed in the two ends of the outer side of the ventilation box. According to the ventilation device for the green building, a fan motor is used for driving a linkage shaft to rotate, and a transmission assembly is matched to enable a fan shaft to rotate synchronously, so that two rotating wind discs and a plurality of fan blades are driven to rotate, outdoor fresh air is extracted and fed into the green building, and the ventilation effect is improved. According to the indoor air purification device, vitiated air, harmful gas and microorganisms in a building can be effectively diluted and discharged, so that the indoor air quality is improved, a healthier and more comfortable living environment is provided for people, indoor oxygen can be effectively supplemented, and the freshness and vitality of indoor air are kept.

The utility model discloses a special ventilation device for a modularized data center, which comprises a ventilation device body, a vibration mechanism and a dust collection mechanism, a filter mechanism body is arranged on the ventilation device body, the vibration mechanism is arranged in the ventilation device body, the vibration mechanism comprises a pair of rotating rods, a plurality of cams are arranged on the pair of rotating rods, and the dust collection mechanism is arranged on the dust collection mechanism. A plurality of supporting frames are fixedly installed in the ventilation device body, the rotating rods are connected with the supporting frames, and bearings are installed between the supporting frames and the rotating rods. Through the arrangement of corresponding mechanisms on the ventilation device, dust on the filtering mechanism of the ventilation device can be vibrated down in a vibration mode after the ventilation device is used for a long time, meanwhile, the dust can be conveniently sucked away through the dust suction mechanism, and therefore the problem that the dust flies everywhere can be avoided; therefore, the ventilation device can be prevented from being blocked through vibration, and the tire body can be manually cleaned.

The invention discloses an environment air quality monitoring simulation cabin and a use method thereof, and belongs to the field of environment simulation test equipment. An ambient air quality monitoring simulation cabin comprises a simulation cabin shell, a mounting plate is arranged in the simulation cabin shell, a jet head is mounted at the bottom of the mounting plate, an air quality detector is mounted on the surface of the simulation cabin shell in an embedded manner, and a reciprocating assembly used for driving the jet head to reciprocate is arranged on the simulation cabin shell; under the mutual cooperation of the air quality detector, the reciprocating assembly, the ventilation assembly and the cleaning assembly, the preparation work of pollution source release of test air outlet is rapidly completed, and the ambient air in the simulation cabin shell is timely ventilated when the test is finished, so that the accuracy of test data and the working efficiency are improved, and the test efficiency is improved. And dust subjected to ventilation and filtration can be cleaned, use is convenient and fast, and practicability is high.

The utility model discloses a novel humidity sensor, which comprises a shell and a bottom box, and a humidity sensing module is fixedly arranged in the shell. The beneficial effects of the utility model are that when using, staff can start the electromagnet and the temperature sensing module through the switch, the electromagnet is started to attract the iron ring through magnetic force, the iron ring moves upwards to pull the side cylinder to move upwards, the side hole is opened, ventilation is carried out, external air enters the housing, and the humidity sensing module detects the air humidity; when the humidity sensing module is not used, the switch is turned off, the electromagnet is powered off, the spring rebounds, the inner rod and the side cylinder are pulled to reset, and the side hole is closed, so that external air is prevented from entering the shell, and the situation that the humidity sensing module is damaged and the service life is affected due to the fact that humid air continuously affects the temperature sensing module is avoided; the device is quick in action, high in working efficiency, simple in structure, low in manufacturing cost and use cost and very convenient to use.

The invention provides an electric pressure cooker. The electric pressure cooker comprises a cooker body and a cooker cover detachably arranged on the top of the cooker body. An air cavity is formed in the cooker cover, and an exhaust valve communicated with the cooker body is mounted in the air cavity; a first air hole for exhausting air is formed in the top of the air cavity; a second air hole and a third air hole are formed in the bottom of the air cavity; the pot body is provided with a second air channel and a third air channel, the air outlet end of the second air channel is located in the middle of the pot body, and the air outlet end of the third air channel is located at the bottom of the pot body; an air exchange mechanism and an air release mechanism are mounted at the air cavity; the ventilation mechanism changes the unblocking and blocking states of the air holes through adjustment, and only outward exhaust is achieved; the gas release mechanism can open the gas release valve through adjustment, so that high-pressure gas in the pot body is discharged; the exhaust direction of high-pressure air leakage can be adjusted and changed, different use environments are met, and the applicability is improved.

The invention belongs to the technical field of curtain wall structures, and discloses a composite curtain wall structure suitable for a zero-carbon building, which comprises an inner side curtain wall and an outer side curtain wall. The inner side curtain wall is arranged on the building body and provided with a ventilation opening, an opening fan is arranged at the ventilation opening and can open or close the ventilation opening, the outer side curtain wall is connected to the inner side curtain wall, a ventilation cavity is formed between the outer side curtain wall and the inner side curtain wall, when the opening fan is opened, the ventilation cavity is communicated with the indoor space through the ventilation opening, and the outer side curtain wall is provided with an air inlet and an air outlet. The air inlet and the air outlet are both configured to be selectively opened or closed, and the ventilation cavity can communicate with the outside through the air inlet and the air outlet. By means of the arrangement, the composite curtain wall structure suitable for the zero-carbon building can flexibly adjust the ventilation mode, and energy consumption and carbon emission of the building can be reduced.

The invention relates to the technical field of air conditioners, in particular to a cabinet air conditioner with a fresh air function, which comprises an air conditioner shell and a fresh air inlet pipe, a fresh air front air outlet is arranged on the fresh air shell, the fresh air front air outlet is arranged on the front side of a fresh air second rear air outlet, and a fresh air connector is arranged on an air duct rear side plate. And the fresh air front air outlet is communicated with the air conditioner air duct through the fresh air connecting port. When the air conditioner is used, part of fresh air enters a room from the front face of the air conditioner shell through the fresh air inlet pipe, the first fresh air inlet, the second fresh air inlet, the fresh air duct, the fresh air front air outlet, the fresh air connector, the air conditioner duct and the first air conditioner air outlet, the fresh air transmission efficiency is effectively improved, and the fresh air exchange efficiency of the whole room is improved; moreover, the first air conditioner air outlet is formed in the lower middle portion of the front face of the air conditioner shell, air outlet of the air conditioner cannot directly blow the upper half body of the user, and therefore the user experience feeling is remarkably improved.

The invention provides a data acquisition and analysis method of an intelligent sofa, which comprises the following steps: arranging an electrostatic sensor array on the intelligent sofa, and acquiring electrostatic signal intensity and polarity distribution, human body charge and environmental humidity data of different areas on the surface of the sofa in real time to obtain electrostatic distribution data; under different air quality conditions including pollutant concentration and particulate matter content, according to the electrostatic characteristic parameters, a mapping relation model of the electrostatic characteristic parameters and the air quality is trained through a support vector machine algorithm; inputting sofa static signal intensity collected in real time into the trained mapping relation model of static characteristics and air quality to obtain changes of the static characteristics, and evaluating indoor air quality in real time; if the evaluation result shows that the air quality is smaller than the air quality threshold value, an air purification device of the intelligent sofa is triggered, an air purifier is started, and the ventilation amount of a fresh air system is increased so as to improve the indoor air environment.

The invention belongs to the technical field of power distribution boxes, particularly relates to a power distribution box with a wind and sand prevention function for gobi areas, and aims to solve the problem that ventilation efficiency is reduced due to the fact that a dense gauze is mounted at an air inlet of a power distribution box in the prior art in order to reduce wind and sand entering the power distribution box. A bottom frame support is fixed to the bottom of the electric box body, a second dustproof water tank is fixed to the bottom frame support, two groove-shaped sliding rails which are parallel to each other and extend right ahead are fixed to the position, close to the middle of the rear side, of the inner wall of the electric box body, and the same limiting truck is slidably connected between the two groove-shaped sliding rails. When the ventilation mechanism is started, external air with wind and sand is prevented from being directly sucked in, at the moment, the external air enters water in the second dustproof water tank through an air inlet hole with a downward hole opening in the top end of a rectangular penetrating pipe for dust falling firstly, and then the external air is led into the electric box body through an air inlet pipe; the air volume can be ensured to be large enough, and sand wind is prevented from entering the interior of the electric box body.

The invention relates to the technical field of building structures, in particular to a low-carbon energy-saving building structure which comprises a container house, a plurality of ventilation mechanisms used for ventilation are arranged in the container house, each ventilation mechanism comprises a fairing, and a propeller capable of driving air to flow is arranged in each fairing. A drainage mechanism capable of guiding air to enter or be exhausted is arranged at the input end of the fairing, a driving mechanism used for driving the propeller to rotate is fixedly arranged on the upper portion in the container room, and the propeller is arranged at the working end of the driving mechanism. The propeller is driven by the driving mechanism to rotate, so that the propeller drives air to enter the container house through the drainage mechanism, air circulation in the container house is achieved, and the problem that air in a building structure is not circulated is solved.

The invention provides an air bath temperature control device and method for solving the problems existing in an existing temperature control technology. The device comprises a backflow cavity, a static pressure cavity and an air bath cavity which are all provided with heat preservation layers. The backflow cavity is provided with an inner circulation fan, a refrigeration module, a heating module, an outer circulation scavenging port, an outer circulation scavenging air valve and related parts. The air bath cavity is provided with a second temperature sensor and an internal circulation scavenging port; the static pressure cavity is provided with a temperature sensor, an equal-air-volume air supply duct, a flow guide plate and a flow diffusion plate. The three chambers are connected in pairs through the inner circulation air inlet, the flow dispersing plate and the inner circulation air exchange port to form an air circulation channel. And the real-time temperature in the cavity is obtained by calculating the monitoring values of the plurality of temperature sensors through a data fusion strategy. According to the control method, different temperature control strategies are operated according to the difference value between the real-time temperature of the air bath cavity and the external temperature and the difference value between the real-time temperature of the air bath cavity and the target temperature. The method has the effects of high temperature control uniformity and reliability, high efficiency, energy conservation, accurate temperature control and the like.

The utility model relates to the technical field of indoor fresh air ventilation systems, in particular to a ventilation system based on a plate hole structure, which comprises a base plate platform, a decorative surface layer is covered above the base plate platform, skirting lines are arranged above the periphery of the decorative surface layer, air transmission holes are arranged on the skirting lines, and the base plate platform comprises a plurality of base plates with through holes. The device further comprises a fan and an air delivery pipe communicated with the fan, and the air delivery pipe extends into the base plate platform. The through holes are formed in the base plate, the air conveying holes are formed in the skirting lines, external air is conveyed into the base plate platform through the air conveying pipe by means of the draught fan and freely dispersed in the base plate platform, finally air is discharged from the skirting lines located on the periphery in the space for ventilation, and the effect of ventilation from the periphery to the indoor space is achieved. The underground base plate platform and the skirting line serve as air conveying channels, the integration degree of products is improved, the overall manufacturing cost of the system is reduced, meanwhile, the overall ventilation system is more hidden, indoor space is not additionally occupied, and the use experience of a user is improved.

The utility model discloses a cabinet air conditioner which comprises an air exchange assembly, a first air duct piece, a second air duct piece, a first air inlet, a second air outlet, a second air duct piece, a first air inlet and a second air outlet, the first air duct piece is provided with a first air inlet and a first air outlet; the second air duct piece is provided with a second air inlet and a second air outlet, and a second air duct is formed between the second air inlet and the second air outlet; the first fan is arranged in the second air duct; the second fan is arranged in the first air duct; the first fan and the second fan are in transmission connection with the output shaft; the motor is arranged in one of the first fan and the second fan, one of the first fan and the second fan forms an accommodating part, and the other one forms an avoiding part; one of the first fan and the second fan is provided with a first rotation stopping part, the other one of the first fan and the second fan is provided with a second rotation stopping part, and the first rotation stopping part is matched with the second rotation stopping part. In this way, under the condition that indoor air exhaust and air suction are conducted at the same time, the occupied size of the air exchange assembly can be reduced, the cost is reduced, and the universality of the cabinet air conditioner is improved.

The ventilation design system is characterized in that the ventilation design system comprises an intelligent sensor module, an efficient ventilation device, an air purification module and an intelligent control center; the intelligent sensor modules are distributed in a ventilation area in a plant and used for monitoring temperature, humidity and air quality parameters in real time. The efficient air interchanger is arranged on the top and the side wall of a plant and is designed in a streamline mode. The air purification module is arranged in the air interchanger and is used for filtering dust and harmful gas in the air; the intelligent control center automatically adjusts the operation state of the ventilation device according to data of the sensor. According to the ventilation design system applied to the factory building, streamline design and a modular combination mode are adopted, airflow organization is optimized, ventilation dead angles are eliminated, the ventilation efficiency is improved, ventilation requirements are predicted through an intelligent control algorithm and big data analysis, and unnecessary energy consumption is avoided.

The utility model particularly relates to an automatic air interchanger for an indoor suite door of a passive building. The automatic air interchanger solves the problem that people having a rest are lack of oxygen or dizzy and lack of strength due to the fact that the concentration of indoor CO2 and PM2.5 cannot be detected in time during night rest of an existing passive building. A lock is arranged on the suite door, an outer ventilation opening is formed in an outer side plate at the top of the door pocket line, an inner ventilation opening located on the inner side of the suite door is formed in a top plate of the door pocket line, an air duct communicated with the outer ventilation opening and the inner ventilation opening is arranged between the outer ventilation opening and the inner ventilation opening, and a power transmission mechanism and a rotary ventilation mechanism are arranged in the door pocket line. Automatic ventilation of the public area and the indoor room is achieved, the CO2 concentration and the PM2.5 concentration in the room are equivalent to those in the public area, the CO2 and PM2.5 concentration detecting instrument installed in the public area can detect the concentration of harmful gas in the closed room in time, the fresh air system is started in time to convey fresh air into the room, the air cleanliness in each independent room is improved, and the indoor environment is protected. And the comfort level of the living environment is further improved.

The invention provides a big data information processing method and system. According to the method, an energy distribution model is generated by combining a building information model with infrared thermal imaging data, and a dynamic thermal balance equation set is constructed according to the model so as to generate three-dimensional temperature field reconstruction data. Then, thermal resistance parameters in the energy distribution model, heat flow abnormal area coordinates in the three-dimensional temperature field reconstruction data and air conditioning unit current data are analyzed through a deep learning algorithm, and space-time coupling characteristics of equipment power consumption and thermal environment parameters are extracted; then, a priority regulation and control chain of the temperature control equipment is formulated, and multi-stage linkage rules of the fresh air exchange rate, illumination dimming and cold release of the cold storage tank are covered; finally, the chilled water pump phase difference, the air conditioner group operation mode and the emergency lighting power limiting value are dynamically adjusted, and power load stabilization is achieved. According to the technical scheme provided by the invention, the data information processing efficiency and stability of the large building can be improved.

The present invention relates to the technical field of ventilation and air exchange devices, and specifically to a ventilation and air exchange device for a packaging and printing workshop, comprising an exhaust duct and an air intake duct, both of which penetrate a wall, and are respectively provided with an exhaust fan and an air intake fan inside the exhaust duct and the air intake duct, and also comprises an air exchange box, and the outer ends of the exhaust duct and the air intake duct extend into the top inner side and the bottom inner side of the air exchange box respectively; the present invention has a drying mechanism and a humidifying mechanism, and can humidify the air through the humidifying mechanism when the air is relatively dry, and can dehumidify the air through the drying mechanism when the air is relatively humid, so the present invention can maintain indoor ventilation while maintaining indoor air humidity.

The utility model provides a ship cabin air purification system which comprises a U-shaped shell, a ventilation column is fixed to the U-shaped shell, the U-shaped shell is connected with a filtering assembly, an air exchange mechanism, an air treatment assembly and a flow guide assembly, and the flow guide assembly comprises a sealing plate and a rotating block. The rotating block is provided with a clamping groove; the U-shaped shell is connected with a fixing mechanism, and the fixing mechanism comprises a fixing cylinder, a sliding rod, a first spring and a clamping block. The sealing plate is driven by the rotating block to rotate, so that the U-shaped shell is communicated or one side of the U-shaped shell is communicated with the ventilation column, the clamping block enters the clamping groove through the first spring, the rotating block is conveniently fixed, the fan blades are driven by the rotating motor to rotate, and air in a cabin flows into the U-shaped shell; air is treated and purified through the first filter plate, the second filter plate, the filter cotton and the drying cotton, the device can exchange with outside air, and air in the cabin can be circularly treated and purified.

To provide a ventilator which can prevent dust captured by an air filter from flowing into a room by a supply airflow.SOLUTION: A ventilator 100 comprises: a heat exchanger 12 having a supply air passage for connecting an outdoor-side suction face 12a and an indoor-side discharge face 12b, and an exhaust passage for connecting an indoor-side suction face 12c and an outdoor-side discharge face 12d; an air filter 30 for covering the outdoor-side suction face 12a, the indoor-side discharge face 12b, the indoor-side suction face 12c and the outdoor-side discharge face 12d of the heat exchanger 12, and capturing dust in a supply airflow and an exhaust airflow; and an indoor-side discharge face partitioning plate 36b provided in a position in which the passage of the supply airflow in a dust adhesion region of the air filter 30 is blocked at the indoor-side discharge face 12b of the heat exchanger 12 when making the dust adhesion region of the air filter 30 which has captured the dust circulate and move to the indoor-side discharge face 12b of the heat exchanger 12 at the outdoor-side suction face 12a and the indoor-side suction face 12c of the heat exchanger 12.SELECTED DRAWING: Figure 1

The invention discloses an efficient fresh air ventilator capable of adjusting the air speed and the air direction, and relates to the technical field of fresh air ventilation, the efficient fresh air ventilator comprises a main box body, the two sides of the main box body communicate with an exhaust pipe and an air inlet pipe correspondingly, a filter plate is connected into the air inlet pipe, and a vibration assembly and a cleaning and collecting assembly are arranged on one side of the filter plate. According to the scheme, by arranging the direction adjusting assembly, when a driving motor drives a ratchet gear to rotate clockwise through a rotating shaft, the rotating shaft can drive adjusting fan blades to deflect through a rotating fluted disc and a linkage gear, so that a rotating ring is in an open state, the air outlet direction is adjusted according to the deflection angle of the adjusting fan blades, and the air outlet direction is adjusted according to the opening and closing distance between the adjusting fan blades; after the air outlet amount is controlled and the adjustment of the adjusting fan blades is completed, the driving motor drives the ratchet gear to rotate anticlockwise, the ratchet gear drives the poke rod to move, the poke rod drives the fixing box to rotate, and the fixing box is matched with the rotating ring to drive the adjusting fan blades to rotate, so that the air outlet direction can be changed at any time, and the air outlet uniformity can be ensured.

The invention discloses a storage and fresh-keeping device for konjaku, and relates to the technical field of konjaku storage.The storage and fresh-keeping device comprises a box body, two box doors are movably installed on the upper portion of the interior of the box body, the two box doors penetrate through the left side wall face and the right side wall face of the box body respectively, a storage frame is movably installed in the box body, and a placement plate is installed at the bottom of the storage frame in an embedded mode; a plurality of small holes are formed in the placing plate, a ventilation mechanism is arranged in the box body, a transmission mechanism is further arranged in the box body, the ventilation mechanism comprises a fan, an air inlet pipe, a mounting pipe, an air exhaust main pipe, an air exhaust branch pipe and an exhaust pipe, and the fan is fixedly installed on one side of the lower portion in the box body; the air inlet pipe is fixedly installed on the side wall of the box body and communicates with the interior of the box body, and the installation pipe is fixedly installed at the input end of the draught fan. According to the device, ventilation and air exchange can be conducted on the interior of the device, meanwhile, the suction range of air in the box body is widened, and the dehumidification effect is better.

The present invention discloses a marine medium-speed engine UPS power box with a humidity self-test function, comprising a marine medium-speed engine UPS power box body, a detection mechanism for detecting the humidity inside the box body, an extrusion drainage mechanism used in conjunction with the detection mechanism, and a control mechanism for controlling the operation of the detection mechanism and the extrusion drainage mechanism. The detection mechanism comprises an inlet fan installed through one side wall of the box body, an air outlet hood installed through the other side wall of the box body and having a built-in humidity sensor, and an outer cover installed at the air inlet end of the inlet fan. When the humidity in the air changes, the present invention achieves different degrees of water vapor adsorption effects by moving absorbent cotton of corresponding thickness to block the air inlet end of the inlet fan. That is, when the external humidity changes, the air humidity inside the box body is always maintained within a range suitable for the operation of the components.

The utility model relates to the technical field of ships, and provides a methanol isolation cabin and a ship, which comprise a shell, a gas injection assembly and a gas exchange assembly. Wherein the methanol fuel cabin is wrapped with the shell, and the shell and a shell of the methanol fuel cabin are arranged in a spaced mode to form an isolation space; the gas injection assembly comprises a first pipeline, one end of the first pipeline is inserted into the isolation space, and inert gas can be selectively introduced into the isolation space; the ventilation assembly comprises a second pipeline and a third pipeline, the second pipeline and the third pipeline both communicate with the isolation space, the second pipeline can selectively communicate with the indoor environment and the outdoor environment of the isolation space, and the third pipeline can be selectively connected with any one of the breather valve and the first air pipe head. Through the arrangement, the use efficiency of the inert gas can be improved, and the safety of the methanol isolation cabin is improved.

The invention relates to the technical field of indoor air treatment, and discloses an indoor fresh air humidification system which comprises an air exchange mechanism, and a humidification mechanism is arranged on the left side of the air exchange mechanism. When the indoor fresh air humidification system is used, an impeller is driven by a first motor in the air exchange mechanism to suck in external air, the external air is filtered by a primary filter screen and a high-efficiency filter screen and then fed into the humidification mechanism and a PTC humidifier, moisture is evaporated through PTC heating, the air is humidified, and then the air is conveyed into a room through an air conveying pipeline; the filter screen can be conveniently inserted into the ventilation mechanism through the clamping groove, the clamping block is pressed during insertion to enable the spring to contract, the clamping block is expanded by the elastic force of the spring when the filter screen is inserted to the bottom end, the groove in the surface of the filter screen is clamped, fixation can be relieved and the filter screen can be easily taken out only by pulling the pull ring when the filter screen is fixed and replaced, and part of water mist stays in a pipeline in the humidified air conveying process. And a second motor is started to drive a knocking device, so that the gas pipeline vibrates, water mist is vibrated, and a hard scale layer is prevented from being formed.

The utility model discloses a koji block fermentation system, which belongs to the technical field of wine brewing and comprises a koji room and a koji stack placed in the koji room. The device comprises a koji room, a detection device for detecting the internal environment of the koji room, a steam unit for increasing the temperature of the koji room, a humidifying unit for humidifying the koji room, a cooling unit for reducing the temperature of the koji room, a circulating air unit for internal circulation of air in the koji room, an air exchange unit for air exchange of the koji room and an intelligent control unit, the intelligent control unit is connected with the detection device, the steam unit, the cooling unit, the circulating air unit and the ventilation unit. The system realizes the functions of automatic ventilation, automatic heating and moisturizing and cooling, so that the internal environment of the koji room reaches the most ideal state of koji block fermentation.