32results about How to "Avoid water shortages" patented technology

The invention discloses a four-impulse control method for a steam drum water level of a converter. On the basis of the conventional three-impulse control, a smelting signal is added, a water replenishing amount is calculated according to a set oxygen blowing amount, and water replenishing time control is introduced, so that water is replenished to a steam drum in advance, and the phenomenon that the supplied water is not sufficient because the loading amount of a loading section is too large is avoided; therefore, the false water level of the steam drum is reduced. Moreover, the optimized control over steam of the steam drum is improved, so the amount of water overflowing along with steam is reduced.

The invention discloses an intelligent fire-fighting module. The module comprises a fire hydrant monitoring module, a fire extinguisher monitoring module, an intelligent water level and water pressuremonitoring module and a controller, and the controller is connected with the fire hydrant monitoring module, the fire extinguisher monitoring module and the intelligent water level and water pressuremonitoring module through a 485 bus. The intelligent fire-fighting module has the advantages and effects that the controller is connected with the fire hydrant monitoring module, the fire extinguisher monitoring module and the intelligent water level and water pressure monitoring module, so that remote automatic monitoring and control effects are achieved. Compared with manual lag monitoring of atraditional fire-fighting unit, the module undoubtedly has creativity; and in addition, the fire hydrant monitoring module, the fire extinguisher monitoring module and the intelligent water level andwater pressure monitoring module which are independent of one another form a whole, and the modern intelligent fire protection requirement is effectively met through integrated management.

The invention discloses a concrete steam curing box comprising a test piece box and a steam delivery device. The steam delivery device comprises a heating water tank and a water supply device. The heating water tank is connected with the test piece box through a first pipeline. The water supply device comprises a water supply unit and a water supply box. The water supply unit is connected with the water supply box through a second pipeline. A water level switch is disposed inside the water supply box. The water supply box is connected with the heating water tank through a U-shaped pipe. Two ends of the U-shaped pipe are connected with the bottom of the water supply box and the bottom of the heating water tank. The water supply box in the steam delivery device is connected with the heating water tank through the U-shaped pipe, the U-shaped pipe prevents boiling water in the heating water tank from reflowing to the water supply box through a liquid seal, the water level switch is protected from heat damage, dry heating of the heating water box can also be prevented, and damage of the heating water tank is avoided.

The invention discloses an intelligent buried garbage recycling system. The intelligent buried garbage recycling system comprises a pit cover plate, a lifting device, a spraying fire extinguishing device, a cleaning device and a throwing port frame assembly; the pit cover plate and a pit form a closed space; the lifting device is arranged at the inner bottom of the pit and provided with the throwing port frame assembly; the upper half part of the throwing port frame assembly extends out of the pit cover plate, and vertical lifting movement is carried out through the lifting device; the spraying fire extinguishing device is arranged between the back surface of the throwing port frame assembly and the pit, the output end of the spraying fire extinguishing device sprays towards the inside ofthe throwing port frame assembly, and the input end of the spraying fire extinguishing device is in sealed threaded connection with a water supply pipeline; and the input end of the cleaning device isin sealed threaded connection with the water supply pipeline, the output end of the cleaning device is arranged on the upper surface of the pit cover plate, and water is sprayed towards the upper surface of the pit cover plate. According to the intelligent buried garbage recycling system, the occupied area is reduced, accumulated water in the pit is discharged, and the residual pollution problemthat leachate is sprinkled on the ground is solved.

The invention discloses a no-pump energy-saving pure water system. The no-pump energy-saving pure water system comprises a water inlet tee joint, a pure water filter group, two ball dividing valves, a four-sided valve, a reverse osmosis (RO) film, a wastewater flushing valve, a check valve, a carbon rod filter core filter, a pressure reduction valve, a non-pressure water storage barrel, an automatic water feeding device and a pure water faucet, wherein each assembly of the no-pump energy-saving pure water system is connected by virtue of a pipeline. The no-pump energy-saving pure water system has the advantages that the electric energy is reduced, the water storage capacity and the safety performance are high, the stored water is difficult to go bad, the comprehensive practicability is high, and the no-pump energy-saving pure water system can be promoted and applied to various water purifiers.

The invention discloses an intelligent newborn electric heating constant-temperature bag. The intelligent newborn electric heating constant-temperature bag comprises a bag body. An oxygen pipe connector is arranged in the middle of the upper end face of second covering cloth. Vent holes are reserved in the upper end face of first covering cloth. A heating device is arranged on the left side of an inner cavity of a heating base. An exhaust fan is arranged on the right side of the inner cavity of the heating base. Air outlet holes penetrating through the side wall are formed in the left side wall of the heating base. Air inlet holes penetrating through the side wall are formed in the right side wall of the heating base. The air warming structure is adopted for the intelligent newborn electric heating constant-temperature bag, the situation that water shortage is caused by kang steaming when a traditional heating device is placed under an infant body is avoided, a good recovery environment is achieved for infants through the warm air structure, and due to the adoption of the structure that the oxygen pipe connector and an oxygen concentration sensor are installed through the covering cloth, when infants encounter the situation that the oxygen content in air is small after birth, oxygen can be well supplied to the infants, and a comfortable recovery environment is provided for the infants.

The invention discloses a seedling raising method for paris polyphylla, and belongs to the field of paris polyphylla seedling raising. The seedling raising method comprises the following steps of 1 seed collecting and processing, wherein the tops of ripened paris polyphylla tubers are adopted as seeds; 2 field selecting and fertilizing; 3 field managing; 4 picking and harvesting. According to the seedling raising method, the paris polyphylla seedling emergence rate is improved to 80% from 50% compared with a traditional technology, the transplanting survival rate is more than 80%, and the paris polyphylla seedling emergence cycle is shortened to 4 months from 12 months compared with the traditional technology.

The invention relates to the field of geogrid structures, in particular to a self-weight anchorage type geogrid structure. The self-weight anchorage type geogrid structure comprises a fixed sleeve, watering structures, locking structures, connecting structures, anchoring structures and soil fixing structures, the watering structures are arranged on two geogrid bodies, in the drought weather, watercan be automatically supplied to tree trunk roots, trunk growth can be ensured, through the locking structure, road holding of the tree trunk roots and soil is higher, the anchoring structures are arranged in the two geogrid bodies, the geogrid bodies are firmly fixed to the ground soil, the condition of geogrid body slippage caused by water and soil losses can be prevented, when the anchoring structures work, the soil fixing structures can be synchronously driven to work, through work of the soil fixing structures, the geogrid bodies and the ground soil can be more strongly fixed, due to increasing of the contact area with the ground soil, the water and soil losses can be effectively prevented, and the aim of protecting soil is achieved.

The invention discloses an anti-pollution filtering type intelligent water supply system. The anti-pollution filtering type intelligent water supply system comprises a bottom plate; water is provided for people through a water supply pipeline at one end of the bottom plate, meanwhile, the provided water is collected and stored through a water storage adjusting mechanism when the water consumption at night is reduced, and waste of water resources is reduced; and when the water consumption is increased and the water supply is insufficient in the early morning, a water replenishing adjusting mechanism discharges the water in a water storage tank. The system is scientific and reasonable in structure and safe and convenient to use, the water storage adjusting mechanism is arranged, water is provided for residents through the water supply pipeline, meanwhile, through cooperation of a booster pump, an air pipe and a pressurizing tank, an assembly is formed, the water pressure of the water supply pipeline is moved, the water conveying effect is improved, and meanwhile, through cooperation of an adjusting cylinder, when the water consumption of people is small, the water surface rises to push a sealing ball and a fixing ring to rise, a vertical rod is driven to contract, sealing of a through opening is relieved, and then water is conveyed into the water storage tank through a flow dividing pipe.

The invention discloses intelligent energy-saving building water supply equipment. The equipment comprises a box, the left side of the inner cavity of the box is fixedly connected with a fixation plate, and a floating plate is arranged at the axle center of the inner cavity of the fixation plate and internally and fixedly connected with a first contact; the top and bottom of the inner cavity of the fixation plate are fixedly connected with a second contact and a third contact which are matched with the first contact in use respectively; the left side of the top of the box is fixedly connected with a water pump, a water inlet of the water pump is communicated with a first water inlet pipe, and the end, away from the water inlet of the water pump, of the first water inlet pipe is communicated with the box. According to the intelligent energy-saving building water supply equipment, through the arrangement of the box, the effect of storing water is achieved; the effects of driving a first connecting rod and a second connecting rod to rotate and driving a threaded rod to ascend and descend are achieved through a motor; the effect of driving a baffle to move is achieved through the threaded rod; through a booster pump and a second water inlet pipe, the effect of supplying water is achieved, the flow of water can be effectively controlled, and people use the equipment conveniently.

The invention relates to the technical field of crop cultivation, and particularly discloses a high-yield cultivation method for dry land maize. The high-yield cultivation method specifically comprises the steps of seed dressing with a coating agent, soil preparation and base fertilizer application, annular ridge forming, ditch digging, hole digging, fertilizer application and sowing. According to the high-yield cultivation method, seed dressing is carried out through the coating agent, so that seed protection and seed moisture maintaining are achieved, and through a special ridging mode, local water storage in ridges is achieved, water loss is prevented, the water-retaining property is improved, maize seedling emergence and growth are promoted, and the corn yield is increased.

The invention discloses a modular mobile civil air defense command square cabin. According to the technical scheme, the modular mobile civil air defense command square cabin is characterized by comprising a main body, a storage battery and an instrument column, whereina top plate is arranged on the top surface of the main body, a plurality of instrument grooves are formed in the top surface of the top plate, and generators are fixedly connected into the instrument grooves in a sleeved mode; the storage battery is fixedly mounted on the top surface of the top plate; the instrument column is arranged on the top surface of the top plate, a plurality of rotating blades are fixedly mounted on the outer circular wall surface of the instrument column, and a speed increaser is arranged on the bottom surface of the instrument column. When the command square cabin moves on a vehicle, the top surface of the main body generates a large amount of wind pressure to drive the rotating blades and the instrument column to rotate, the instrument column rotates to drive the speed increaser to rotate, and the speed increaser is connected with the generator, so that electric energy converted from rotation of the rotating blades is greatly increased, and electric power is provided for the command square cabin; the situation that electric appliances in a conventional square cabin which generates electricity through a generator cannot be used under the condition that resources are insufficient is avoided.

The invention discloses an emitter for drip irrigation. The emitter comprises a casing, a piston glidingly connected in the casing as well as a rear cover, wherein the piston comprises a first pistonpart, a second piston part and a connecting rod part connected between the first piston part and the second piston part, the area of the outer end of the first piston part is S1, the area of the outerend of the second piston part is S2, and S1 is smaller than S2; a first piston cavity matched with the appearance of the first piston part is formed in the casing, a second piston cavity matched withthe appearance of the second piston part is formed in the casing, a channel for communicating the left end of the first piston cavity and the right end of the second piston cavity is formed in the casing, a plurality of dripping ports penetrating the casing are formed in the side wall of the first piston cavity in the moving direction of the first piston cavity at equal intervals, and a spring for driving the first piston part to move to the right side of the first piston cavity to open the dripping ports is arranged on the casing. According to the emitter, flow of water dripping from the emitter can always keep relatively constant no matter how pressure of inside water changes.

The invention relates to an automatic circulating water supply system for cooling water of a dry quenching water seal, which comprises an underground reservoir for storing soft water discharged by a blast furnace blow-off pipe; a water supplementing pump installed in the underground reservoir and used for supplying water to a main multi-stage filtering water tank; the multi-stage filtering water tank supplementing the water to an accident water tank through a pump set; the accident water tank is used for supplying the water to a furnace top water seal tank, a dust removal emergency water seal tank and a dry quenching emergency water seal tank; and an auxiliary multi-stage filtering water tank used for filtering inlet water of the furnace top water seal tank, the dust removal emergency water seal tank and the dry quenching emergency water seal tank and supplying the water to the main multi-stage filtering water tank. According to the invention, boiler blow-off water is utilized, so that the cost for purchasing or self-making demineralized water is saved, and the waste of boiler blow-off soft water resource discharge is avoided; large-flow water supply can be performed during water shortage; and the multi-stage filtering circulating water tank is designed, so that the cleanliness of circulating water is guaranteed, the treatment cost is low, and the service life of the furnace top water seal tank and other water consumption point equipment is prolonged.

The invention discloses an ultrahigh-rise building fire water supply method and a system thereof. The method comprises the following steps: S1, determining the height and floors of an ultrahigh-rise building, and selecting water transferring positions in the ultrahigh-rise building; S2, arranging water storage tanks at the water transferring positions, building a water supply station on the ground, and arranging water supply pumps in the water supply station; S3, connecting the water supply pumps with the water storage tanks through pipelines, connecting the water storage tanks of the adjacentwater transferring positions through pipelines, and arranging electric control valves on the pipelines; S4, arranging a water level monitoring component in each water storage tank, and electrically connecting the water level monitoring components, the electric control valves and the water supply pumps with a control system; S5, connecting the water storage tanks with fire water supply positions of corresponding floors; and S6, detecting water levels of the water storage tanks through the water level monitoring components, and controlling the water supply pumps and the electric control valvesaccording to the water levels so as to ensure sufficient water in the water storage tanks through the control system. The method can ensure the high-rise fire water and avoid the occurrence of insufficient water supply in case of a fire hazard.

The invention discloses an office drinking water intelligent monitoring system. The office drinking water intelligent monitoring system comprises a fixed terminal and a mobile terminal. The fixed terminal comprises an electronic tag, a scanning unit, a central processor, a water level sensor, a storage area weight measuring module and a wireless transmitting module. The mobile terminal comprises a wireless receiving module, a data processing module and a display module. According to the office drinking water intelligent monitoring system, the real-time water level condition of a water disperser water bucket and the real-time water storage condition of a storage area are tracked and mastered in real time through the joint action of the electronic tag, the scanning unit, the water level sensor, the storage area weight measuring module and the central processor, a water changing worker can be reminded to change water in time, the water shortage situation can be avoided, and the intelligent degree and reliability are high.

The invention discloses an intelligent fire control internet-of-things monitoring device comprising a placing frame, a protection box, a connecting pipe, shells and a hydrant, wherein the rectangular placing frame is fixedly connected to one end of the connecting pipe; at least one protection box is adhered to the surface of the connecting pipe; two shells are connected to the other end of the connecting pipe, and are fixed on the hydrant; the placing frame consists of a panel, a baffle 1, a baffle II, a neck I and a neck II; the protection box consists of a box body, a through hole, an observation cover, a side plate, a trapezoidal groove and a trapezoidal lug; the connecting pipe consists of a composite material layer and a steel pipe from inside to outside; and each shell consists of a shell body, a pinch plate, a storage box I, a storage box II and a threaded hole. The monitoring device can be used for monitoring whether each hydrant contains water and the water pressure in real time, thereby avoiding the condition that the hydrant is in lack of water during fire fighting.

The invention relates to the technical field of mechanical engineering, in particular to a sapling transplanting device. Moisture is conveyed into a box body through a water inlet pipe, the conveyed moisture is stored below a partition plate in the box body, a sapling needing to be transplanted is placed on a filter screen, the root of the sapling extends below the filter screen, at the moment, water stored below the partition plate is pumped to a spray head through a water suction pump below the spray head, the water can be sprayed out to the root of the sapling below the filter screen through the spray head, and the water sprayed out of the spray head can be supplemented to the root of the sapling below the filter screen. The water sprayed out of the spray head can supplement water to the root of the sapling, the situation of water shortage of the sapling due to the fact that a large amount of water is evaporated in the transportation process of the sapling is avoided, and the survival rate of the transplanted sapling is improved.

The invention discloses an intelligent fire protection module, which includes a fire hydrant monitoring module, a fire extinguisher monitoring module, an intelligent water level and pressure monitoring module and a controller. Pressure monitoring module connection. The invention has the following advantages and effects: remote automatic monitoring and control effects are achieved through the connection of the controller with the fire hydrant monitoring module, the fire extinguisher monitoring module and the intelligent water level and pressure monitoring module. Compared with the manual hysteresis monitoring of the traditional fire protection unit, it is undoubtedly creative; and in the present invention, the independent fire hydrant monitoring module, fire extinguisher monitoring module and intelligent water level and pressure monitoring module are integrated, and through integration management to effectively meet the needs of modern intelligent fire protection.

The present invention is an automatic circulating water supply system for dry quenching water-sealed cooling water. The underground water storage tank is used to store the soft water discharged from the blast furnace sewage pipe; Multi-stage filtered water tank for water supply; multi-stage filtered water tank to supply water to accident water tank through pump set; accident water tank to supply water to the furnace top water sealing tank, dust removal emergency water sealing tank and CDQ emergency water sealing tank; auxiliary multi-stage water tank Filter water tank, used to filter the inlet water of the furnace top water seal tank, the dust removal emergency water seal tank and the dry quenching emergency water seal tank, and supply water to the main multi-stage filter water tank. The invention utilizes the boiler sewage, saves the cost of outsourcing or self-made demineralized water, and avoids the waste of the boiler sewage and soft water resources to be drained out; large-flow water supply can be carried out when water is short; a multi-stage filtration circulating water tank is designed to ensure the circulating water The cleanliness of the furnace is lower, the treatment cost is lower, and the service life of the furnace top water sealing tank and other water point equipment is improved.

The invention discloses an on-water floating planting frame for seedlings. The middle of a planting frame body is provided with a control box, the inside of the control box is provided with a programmable controller, one side of the programmable controller is provided with a voltage regulator module, one side of the voltage regulator module is provided with a storage battery, one side of the storage battery is provided with a solar power generation module, the top of the control box is provided with a support frame, the inside of the support frame is provided with a water pipe, the top of the support frame is provided with a planting container, the middle of the control box is provided with a balance bar, the top of the balance bar is provided with a floating plate, the top of the floating plate is provided with a support rod, the top of the support rod is provided with a solar panel, and the bottom of the control box is provided with a water pump. The top of the balance bar is provided with four floating plates, the arrangement of the floating plate can avoid side turning of the planting frame body in work, and the stability of the planting frame body is improved.

The invention discloses a double-filtering back-flushing self-decontamination water taking device which comprises a water taking opening. The water taking opening penetrates through a dam and is provided with a filtering device. The water taking opening is connected with a water taking pipe. A back-flushing pipe is arranged on the water taking pipe. Back-flushing supercharging devices are arranged on the water taking pipe and the back-flushing pipe. The water taking opening is in a loudspeaker shape. One end, with small opening diameter, of the water taking opening is arranged in the dam. The filtering device comprises a coarse filtering screen and a fine filtering screen. One end, with large opening diameter, of the water taking opening is provided with the coarse filtering screen. The fine filtering screen is arranged in the middle of the water taking opening. According to the double-filtering back-flushing self-decontamination water taking device, the problems that in the prior art, a water taking opening filtering screen is blocked, decontamination difficulty is high, and equipment normal operation is affected are solved. The reliability and the safety of water supply system equipment operation are greatly improved, the fact that a unit can generate much power safely and continuously, and the power generation efficiency of an enterprise is improved.

The invention discloses an underground intelligent garbage recovery system, which comprises a pit cover plate, a lifting device, a sprinkler fire extinguishing device, a cleaning device and a frame assembly of a feeding port; the pit cover plate and the pit form a closed space; The inner bottom of the pit is provided with a lifting device, and the lifting device is provided with a frame assembly of the discharge port, and the upper part of the frame assembly of the discharge port extends out of the pit cover, and is vertically lifted by the lifting device; There is a sprinkler fire extinguishing device between the back of the module and the pit. The output end of the sprinkler fire extinguishing device sprays towards the inside of the frame assembly of the inlet, and its input end is sealed and screwed with the water supply pipeline; the input end of the cleaning device It is sealed and screwed with the water supply pipeline, and its output end is arranged on the upper surface of the pit cover, and sprays water toward the upper surface of the pit cover. The invention reduces the occupied area, discharges the pit water, and solves the problem of residual pollution caused by leachate spilled on the ground.

The invention discloses a flower freshness retaining pipe which comprises a sleeve and a top cover mounted at the top of the sleeve, wherein a taproot cylinder is connected with the bottom of the sleeve; a first rotary disc and a second rotary disc are fixed on the surface of the taproot cylinder; a first rotating handle is mounted in the middle of the first rotary disc through a rotary disc shaft; the rotary disc shaft of the first rotary disc is in transmission connection with a left hinge through a steel wire; the bottom of the left hinge is movably connected with a left straight knife bottom cover; a second rotating handle is mounted in the middle of the second rotary disc through another rotary disc shaft; the rotary disc shaft of the second rotary disc is in transmission connection with a right hinge through another steel wire; and the bottom of the right hinge is movably connected with a right straight knife bottom cover. The flower freshness retaining pipe has the following advantage: through arranging the sleeve, flowers can be stored in the sleeve, then, the flower root system is protected through two types of taproot cylinders and fibril cylinders matched with flowers, the root system of the flower can be directly digged out of a pot and is finally transported in a sealing manner.

The invention discloses a fully-wrapped anti-radiation protective garment with a filtering mask structure and a use method thereof, and relates to the technical field of protective garments. Comprising an anti-radiation protective garment body used for isolating germs and radiation, a mask assembly is arranged on the anti-radiation protective garment body, and the mask assembly comprises an observation window, a three-dimensional mask arranged on one side of the observation window and an air supply adjusting assembly arranged on the other side of the observation window. Water drinking operation can be directly carried out in the anti-radiation protective clothing main body through the water drinking system, the situation of water shortage is avoided, the water storage bag is tightly attached to the inner cavity of the anti-radiation protective clothing main body, physical activity of a user is not affected, the breathing difficulty of the user can be reduced through the active air supply assembly, more labor is saved, and user experience is improved. Meanwhile, the active air supply assembly can supply air to the hands and the armpits of the user, sweat is reduced, the user feels cooler and more comfortable when wearing the anti-radiation protective garment body, and the muggy condition is avoided.

The invention discloses a multifunctional water path assembly. The multifunctional water path assembly comprises a cooling grille, an assembly support, a water returning pressurizing water pump, a water outlet pressurizing water pump, a heat exchanger and a water path valve chamber, wherein the water returning pressurizing water pump, the water outlet pressurizing water pump, the heat exchanger and the water path valve chamber are arranged on the assembly support; the heat exchanger is arranged in the assembly support, one side of the heat exchanger is connected with a heating water outlet pipe and a heating water returning pipe, the other side of the heat exchanger is connected with a water supplementing pipe and a water draining pipe, a water returning valve and a water outlet valve arearranged on the two sides of the cooling grille, the water returning valve communicates with the water returning pressurizing water pump, the water returning pressurizing water pump communicates withthe heating water returning pipe. The water outlet valve communicates with the water outlet pressurizing water pump which communicates with the heating water outlet pipe. The multifunctional water path assembly is good in stability, and has the dual-way pressurizing function, inflow and backflow water can be pressurized, the water circulation capacity in a wall hanging furnace circular water pathis improved, the heat circulation effect is improved, through a water path valve chamber, a water inlet and a water outlet are combined together, and the water valve can be conveniently controlled.

The invention discloses a water dispenser for automatically replacing bottled water, which includes a water changing mechanism, a heating mechanism and a storage box. The water changing mechanism consists of a universal wheel, a first chute, a first electric telescopic rod, and a first slider , a sliding box, a rotating box, a rotating motor, a driving bevel gear, a rotating shaft, a bevel gear, a rotating disk, a pressure sensor, a placement slot and a control panel, and two first slide slots are excavated at the bottom of the inner wall of the placement box. The present invention By setting up a water changing mechanism, under the action of the rotating disk and the rotating motor, three buckets of water can be loaded on the rotating disk at the same time, which is convenient for automatic replacement of the bottled water, and no manual operation is required for replacement, which saves trouble and effort, and avoids unnecessary replacement. In the case of water shortage in time, the height of the faucet can be adjusted by setting the third electric telescopic rod to avoid its rigid structure and the inability to use cups of different heights, which greatly improves the practicability of the water dispenser.

The invention relates to the field of geogrid structures, specifically a self-weight anchoring geogrid structure, including a fixed sleeve, a watering structure, a locking structure, a connecting structure, an anchoring structure and a soil fixing structure; The watering structure is set on the body of the grid, which can automatically supply water to the roots of the trunk in dry weather, so as to ensure the growth of the trunk. By setting the locking structure, the grip between the roots of the trunk and the soil can be strengthened. An anchoring structure is installed inside the two grid bodies, which can firmly fix the grid body to the ground soil, thereby preventing water and soil loss from causing the grid body to slip, and while the anchoring structure is working, it can also synchronously drive the The soil-fixing structure works, through the work of the soil-fixing structure, the fixation between the grid body and the ground soil can be strengthened, and the contact area of ​​the ground soil can be increased, which can effectively prevent soil erosion and achieve the purpose of protecting the soil .

The invention discloses a water box of a breathing machine convenient in observation of water level. The water box comprises an outer box and an inner box, wherein the inner box is arranged in the outer box, the inner box comprises an upper box body, a partition plate and a lower box body, and the upper box body and the lower box body are in buckled connection through two openings in the upper boxbody and the lower box body; an oblique water level plate is arranged on the bottom surface of the partition plate; water level graduation lines are formed in the water level plate; the outer box comprises an outer box body and an outer box cover, wherein a visible cover plate and an air outlet pipe are arranged on the outer box cover; and when the outer box cover is used for covering, the bottomend of the air outlet pipe is buckled to upper box body air outlets in the upper box body on the inner boxy, so that mutual fitting butting is formed. Through the water level plate which is obliquelyarranged and a transparent visible cover plate, the water level in the water box can be observed without opening the outer box cover, and the condition of water shortage in the water box is effectively avoided. LED illuminating lamps are arranged on the inner side, close to the back of the water level plate, of the outer box, so that users can conveniently observe the water level at night or in dark places.