33results about How to "Good ventilation and heat dissipation" patented technology

The invention discloses a constant temperature and humidity storage box of gingers, which belongs to article storage boxes. The structure of the constant temperature and humidity storage box of the gingers comprises a box body, a box door, a refrigerating unit, a control panel, a microcomputer control circuit, an ultraviolet sterilizing lamp, an electric heating pipe and an evaporator, wherein the back part and bottom of the box body are respectively provided with a back part partition board and a bottom partition board; an air inlet fan and an air exhaust fan are respectively arranged at the top of the back part partition board; a ventilating hole is formed on the bottom partition board; a water tank is formed at the lower part of the evaporator; a water tank outer cover is arranged on the outer wall of the box body corresponding to the water tank; a ventilating cover is arranged in the middle of the top of the box body; the ultraviolet sterilizing lamp is arranged on the box top in the interior of the box body; a temperature and humidity sensor is arranged on the side wall of the middle part of the box body; and the microcomputer control circuit is electrically connected with the control panel, the temperature and humidity sensor, the refrigerating unit, the air inlet fan, the electric heating pipe, the air exhaust fan, the ultraviolet sterilizing lamp and the evaporator respectively. The constant temperature and humidity storage box of the gingers has the characteristics of good ventilating and heat radiation condition and no generation of stuffiness and decayed gingers; and the temperature and humidity as well as plant diseases and insect pests can be effectively controlled.

A ventilating and noise-reducing apparatus for an indoor transformer is disclosed. The ventilating and noise-reducing apparatus comprises a ventilating louver and an axial flow fan used for performing ventilation and thermal dissipation to ensure a safe and stable operation of the indoor transformer, a multi-channel active control system used for the ventilating louver and mounted on the exterior of the ventilating louver, and a single-channel or multi-channel active control system used for the axial flow fan and mounted on the exterior of the axial flow fan. Due to the ventilating louver and the axial flow fan, the ventilation and thermal dissipation of the indoor transformer are ensured; and meanwhile, due to the active control systems, noise generated by the indoor transformer is restrained from radiating to the outside from the ventilating and thermal dissipating channels.

The invention discloses a shutter of an IPX4 protection grade. The shutter comprises an upper protection structure and a lower protection structure, and the upper protection structure and the lower protection structure are both of a curved surface structure, so that the splashing energy is attenuated, and water drops on a wall are guided to slide to the outside along the curved surface structures;the convex surface of the upper protection structure and the concave surface of the lower protection structure are in the same direction, and a free ventilation cavity is formed between the upper protection structure and the lower protection structure and is used for ventilation and heat dissipation. The shutter meets the requirements of the IPX4 protection grade, and meanwhile has good ventilation and heat dissipation functions, so that different heat dissipation requirements of products are met, and installation or connection of other parts is facilitated.

The invention relates to an improved cell box which comprises a box body and two cell modules that are arranged at the two opposite sides in the box body, wherein the box body consists of four side plates, a box cover and a box bottom, wherein the two side plates which are parallel to each other are taken as air inlet plates of the cell box, and another side plate which is vertical to the air inlet plates and is further away from the cell modules is taken as an air outlet plate of the cell box; each cell module comprises a battery pack, a baffle and a drainage plate, wherein the baffle is provided with a fan; the air inlet plates are provided with air inlets, and the air outlet plate of the cell box is provided with an air outlet which is provided with an outlet fan and the guide plates; and the guide plates are symmetrically arranged at the two sides of the fan. The cell box leads cold air to be absorbed into the box body through the air inlets by the fan and flow through gaps among batteries by the drainage plates, and the heat of the batteries can be taken away through the outlet fan at the air outlet, so that the structure leads the batteries to work in comparatively consistent environment, thus not only leading the batteries to be consistent and improving the safety when in use, but also prolonging the service life of the cell modules.

The invention discloses a cylindrical three-phase isolation transformer with an upper and lower yoke structure, which comprises an iron core, windings and a fixing structure for fixing the windings and iron core. Each winding comprises a primary winding and a secondary winding. The iron core comprises an upper yoke, a lower yoke and three middle columns. The upper and the lower yokes respectively form air gaps with the top and the bottom ends of the middle columns. The primary and secondary windings are sequentially sleeved in the peripheries of corresponding middle columns from inside to outside. A full air flue located between the primary and secondary windings is arranged in the periphery of the primary winding. Conventional iron core is replaced by the upper and lower yoke structure, thus, the air gaps between the upper and lower yokes and the middle columns can be conveniently adjusted to adjust a no-load current. The full air flue is adopted between the primary and secondary windings to adjust the distance between the primary and secondary windings so as to adjust the short-circuit impedance. Meanwhile, the full air flue is designed so that the transformer has a better ventilating and radiating condition and low temperature rise, so that the service life of the transformer is prolonged, and the use cost is lowered.

The present invention relates to a modularization area power transformation integration distribution box. The modularization area power transformation integration distribution box comprises a metering element cell, a total input-wire element cell, a busbar insulation element cell, an outgoing line drawer element cell and a reactive compensation drawer element cell. A total input-wire knife fuse switch is installed in the total input-wire element cell, and the main busbar of the total input-wire knife fuse switch is connected with one-time static contact terminals at the input-wire sides of the outgoing line drawer element cell and the reactive compensation drawer element cell, is fixed by the bus-bar clamp of a busbar and is subjected to insulation and sealing through adoption of the blanking plate of a busbar insulation element cell to integrate the whole system loop to be connected in one body. Through adoption of the technical scheme, the modularization area power transformation integration distribution box has a flexible scheme and three basic functions such as metering load control, power distribution circuit and reactive compensation which may be flexibly configured according to requirements. The modularization area power transformation integration distribution box is economical and reasonable in structure design and the arrangement of electric appliances and circuits, is easy to maintain and operate, safe and reliable and practical and beautiful, and has good ventilation and heat radiation functions.

The invention provides a ventilation and noise reduction device of an indoor transformer. The device comprises a ventilation louver and an axial flow fan located in wall body openings, a first-type active control mechanism located outside the louver, and a second-type active control mechanism located outside the axial flow fan, wherein the ventilation louver and the axial flow fan are used to implement ventilation and heat dissipation and ensure safe and stable running of the indoor transformer, and the louver and the axial flow fan are located on two wall bodies respectively; the first-type active control mechanism is used to reduce noise radiated by the indoor transformer from the ventilation louver to external environments; the second-type active control mechanism is used to reduce noise radiated by the indoor transformer from a ventilation opening of the axial flow fan to the external environments and reduce noise radiated by the axial flow fan to the external environments; and the first-type active control mechanism and the second-type active control mechanism compose the active noise reduction system.

The invention relates to a split type uncoiling brake disc comprising a brake disc body and a transition shaft sleeve. The transition shaft sleeve is of a step type structure and comprises a first sleeve cylinder, a second sleeve cylinder and a third sleeve cylinder, wherein the outer diameters of the first sleeve cylinder, the second sleeve cylinder and the third sleeve cylinder are decreased in sequence. The second sleeve cylinder is sleeved with the brake disc body. The split type uncoiling brake disc further comprises two pieces of abrasion resistant layers. Each abrasion resistant layer comprises a plurality of abrasion resistant pieces. A protruding block is arranged on each abrasion resistant piece. A plurality of sliding grooves corresponding to the protruding blocks are formed in the brake disc body. The brake disc body and the transition shaft sleeve are of a split type structure, so that replacement and maintenance are better facilitated, manufacturing is easy, and the using cost is low; the abrasion resistant layers are mounted to strengthen the abrasion resistance of the brake disc body, so that the brake disc body is not liable to be abraded; the abrasion resistant layers are composed of the multiple abrasion pieces, and each abrasion resistant piece and the brake disc body are matched independently, when abrasion or fracture occurs, the abrasion resistant pieces can be replaced specifically, operation is convenient and rapid, and the replacement cost is low; and meanwhile the sliding grooves further can take a certain effect on heat dissipation.

The invention provides a side-hung driving motor assembly of an electric vehicle, and belongs to the technical field of electric vehicles. The problem that an existing electric vehicle with a side-hung driving motor is poor in balance is solved. The electric vehicle comprises wheels, the side-hung driving motor assembly comprises a bottom fork and a motor, the bottom fork comprises a left fork armand a right fork arm, the wheels are arranged between the left fork arm and the right fork arm, the side-hung driving motor assembly further comprises a speed reducing and changing mechanism, the left fork arm is bent towards the wheels, and a concave installation space is formed in the outer side of the left fork arm. The motor is located in the installation space and fixedly connected with theleft fork arm, an installation cavity is formed in the inner side of the rear end of the left fork arm, the speed reducing and changing mechanism is arranged in the installation cavity, the inner sidewall of the right fork arm is concavely arranged in the direction away from the wheel to form a receding space, and the motor is connected with the wheel through the speed reducing and changing mechanism. The electric vehicle with the side-hung driving motor has the advantage of being good in balance.

The invention discloses a design method for a ventilation opening of a preassembled transformer substation assisted by a computer, which includes the following steps: mounting Icepak simulation calculation standard software on the computer; setting a transformer as a heating source; building the 3D stereoscopic model diagram of an equivalent preassembled transformer substation; setting the thermophysical parameters of a box body and an inside clapboard in the Icepak simulation calculation standard software; building a transformer model on the 3D stereoscopic model diagram according to the capacity of the transformer; repeatedly calculating the indoor temperature of the transformer according to the thermophysical parameters of the box body and the inside clapboard, the capacity of the transformer, an air outlet and an additionally arranged air inlet as well as correcting the area of the air inlet according to the temperature so as to lead the temperature to achieve the design requirement. The design method has the advantages of having a fast design speed, calculating accurately, reducing the working intensity, reducing the design cost and improving the success rate of the design scheme; besides, the invention can design a preassembled transformer substation which has the largest natural ventilation area, the best ventilation opening and more reasonable arrangement of the inside apparatuses.

The invention discloses a combined beehive which comprises a cover, an auxiliary cover, a super and a hive. The combined beehive is characterized in that ventilating devices are arranged on the side walls of the cover, the side walls of the super and the side walls of the hive; doors are arranged on the super and the hive and are arranged on the lower portion of face plates of bodies of the super and the hive; a horizontal frame is arranged in the super; a vertical frame is arranged in the hive; the bottom of the hive is of an oblique plane structure. The combined beehive has the advantages that internal air circulation effects of the beehive are superior to internal circulation effects of a common beehive, and internal bees and fodder are reasonably distributed; the honey yield of the combined beehive is higher than the honey yield of the common beehive; beekeeping appliances can be sufficiently utilized, and the combined beehive is low in bee management labor; honey can be easily fetched, the yield can be increased, and the efficiency can be improved; strong colonies are easy to raise, and the quantity of bee colonies is easy to increase.

The invention discloses a multifunctional school bag. The multifunctional school bag comprises a school bag body; a warning box is integrally formed on the front of the schoolbag body; the side wall and the end of the warning box are separately provided with a notch and an air inlet; an airbag is fixedly arranged on the back of the schoolbag body; and the position of the airbag is located near thelower end of the back of the schoolbag body. According to the invention, the airbag, a power supply mechanism, a main gear, a secondary gear, and phosphors are provided, therefore, the airbag can intermittently exhaust air to blow the back of the user during the walking of a student carrying the school bag, so that the school bag has good ventilation and heat dissipation functions; and meanwhile,a spiral coil can generate current to power a lamp body and make the lamp body shine, therefore, the school bag has a warning function; and a lampshade can also be driven to rotate, so that differentparts of the lampshade alternately pass through the external opening of the notch in turn to produce rotating light effects of different colors, which makes the warning function of the school bag more prominent.

The invention relates to a movable sunlight shed. The movable sunlight shed comprises two sunlight shed modules which are bilaterally symmetrical with each other, two parallel moving rails, and a driving system. The sunlight shed modules are of an arch structure. The two bottom ends of the sunlight shed modules are separately supported on the two moving rails. Each sunlight shed module comprises afixed module, at least one driven module and a driving module which are sequentially arranged from inside to outside. The driving mechanism is connected with the driving modules and is used for driving the driving modules to move along the moving rails, and the driving modules drive the driven modules to move to enable the two sunlight shed modules overlap to be opened or to stretch to be closed.According to the movable sunlight shed, the driving system drives the sunlight shed modules to move so that the whole sunlight shed can be opened to realize a good ventilation and heat-dissipation effect.

The invention relates to an energy saving electromagnet, including a coil, an armature, a front iron, an upper cover, a base plate, characterized in that, the coil is made of aluminum wires, wherein the upper cover and the base plate are made of iron plate. An axial continuous manger hole or an axial clearance is arranged on the case. The invention has the beneficial effect that: (1) the electromagnet coil of the invention adopts the aluminum wire to replace the copper wire, which greatly reduces the cost; (2) axial continuous manger hole or an axial clearance is arranged on the case which avoids the formation of the short circuit ring, thereby solving the problems of slow action speed caused by the short circuit ring of the case; (3) the iron plate and the iron pipe replace the base plate, the upper cover and the case made of the cat steel, thereby avoiding the pollution in the production process; (4) an axial continuous manger hole or an axial clearance is arranged on the case, which improves the ventilation heat dissipation conditions, reduces the failure by overheat.

The invention discloses a grinding device good in cooling effect for machining. The grinding device comprises a fixed base. A fixed plate is fixed to the outer wall of the top of the fixed base. A U-shaped groove is formed in the outer wall of the top of the fixed plate. A plurality of protruding edges distributed at equal intervals are arranged on the inner wall of the bottom of the U-shaped groove. A vent hole is formed in the inner wall of the bottom of the U-shaped groove. A cooling plate is fixed to one side of the outer wall of the top of the fixed base. Cooling holes are formed in the two ends of the outer wall of one side of the cooling plate correspondingly. Cooling fans are fixed to the inner walls of the two cooling holes correspondingly. Fixed rods are fixed to the two sides ofthe outer wall of the top of the fixed base correspondingly. Top plates are fixed to the outer walls of the tops of the two fixed rods correspondingly. The grinding of workpieces can be prevented from being affected by a too high temperature, the shaking of workpieces caused by the shaking of the grinding device in work can be prevented, the machining offset of the workpieces caused by the left-right shaking of a grinding plate can be prevented, and the friction force between a guide column and a through hole can be reduced.

The invention relates to an LED bulb having excellent ventilating and heat dissipation functions. A main body comprises a lamp holder and a glass blister; a miniature air outlet, electrical contacts and an LED power supply driving assembly are arranged on the lamp holder; a glass core column pipe, an electric light-emitting assembly and an exhausting pipe are arranged in the glass blister; the glass core column pipe is in a deep and long cylinder shape; a cylinder bottom comprises a core column head where a charging and exhausting hole is formed; the exhausting pipe is arranged in the center of a cylinder cavity; and a circular cavity around the exhausting pipe forms an electric light-emitting assembly accommodating cavity communicating with outside air. The electric light-emitting assembly contains heat absorbing and conducting blocks, part of heat and liquids produced during working are left in the environment where the outside natural air circulates and are immediately diffused and evaporated, the heat dissipation pressure of the inner cavity of the blister is reduced, meanwhile, the corrosion influence of liquid residues on an LED light-emitting element is avoided, the service life and the illumination effect of the LED bulb can be guaranteed, and the LED bulb is simple and reasonable in structure, reliable in working, long in service life and low in production and daily use costs and has the very high practicability.

The invention discloses a marine clutch. The clutch comprises a clutch body, wherein the clutch body comprises a first driving friction cone, a first driven friction cone, a second driving friction cone, a second driven friction cone, a shaft hub, an air distribution disc, a cover plate and a transition disc, wherein an air channel is formed on the air distribution disc; one side of the clutch body is connected with a gear box input shaft, and the other side of the clutch body is connected with a diesel engine flywheel; the side of the clutch body, which is connected with the diesel engine flywheel, is provided with a high-elasticity element between the clutch body and the diesel engine flywheel; a first diaphragm component and a second diaphragm component are arranged between the first driven friction cone and the shaft hub, and between the second driven friction cone and a spindle respectively; a cylinder is arranged among the first driven friction cone, the second driven friction cone and the shaft hub; and a bearing part is arranged between the shaft hub and the spindle. The high-elasticity element for shock absorption is independently arranged outside the clutch and is connected in series with the clutch, so that the radial space of the high-elasticity element is unlimited and can be arbitrarily determined according to the requirement, and the shock absorption function of the high-elasticity element is fully exerted.

The invention discloses a ventilation and heat dissipation power cable channel management system. The ventilation and heat dissipation power cable channel management system comprises a cable channel module, a ventilation module, a circulation conversion module, a data acquisition module, a data processing module and a main control module; and the main control module is connected with the cable channel module, the ventilation module, the circulation conversion module, the data acquisition module and the data processing module separately. The ventilation and heat dissipation power cable channelmanagement system is novel in design, compact in structure, convenient and efficient as a whole, and has better ventilation and heat dissipation performance on the cable channel and is more automaticand intelligent and is accurate in control; and heat and cold exchange convection can be realized, and wind power also can be used for power generation to realize air circulation conversion, so that the cost is greatly lowered, reasonable resource utilization is realized, the power transmission efficiency of the cable is ensured, and high overall stability and high safety performance are achieved.

The invention relates to the technical field of photovoltaic equipment, in particular to a novel photovoltaic glass window and a lighting device. The novel photovoltaic glass window and the lighting device comprise shaft sleeves, rotating shafts, and lighting glass; an inverter is installed in the middle of the upper part of a glass window body, and the inverter and the glass window body are connected by screws; a transmission line is disposed in the middle of the back of the glass window body, and the glass window body is connected to the inverter through the transmission line in a penetrating mode; and an upper frame body is mounted at the lower part of the glass window body, and the glass window body is connected to the upper frame body through the shaft sleeves and the rotating shaftsin an inserted mode. Through the structural improvement and combined with the prior art, the novel photovoltaic glass window and the lighting device has the advantages that the lighting effect is goodand maximum energy conversion can be exerted by the photovoltaic module; the glass window is provided with an open structure which has good ventilation and heat dissipation effects; and the glass window has a high degree of shading and can meet existing use requirements; and the problems and deficiencies in existing device technologies are solved and the novel photovoltaic glass window and the lighting device are more inventive.

The invention discloses watermelon flavored instant pea vermicelli. The watermelon flavored instant pea vermicelli is prepared from the following raw materials in parts by weight: 500-550 parts of peas, 1-1.1 parts of eucommia ulmoides leaves, 0.9-1 part of grape leaves, 0.8-0.9 part of officinal magnolia bark flowers, 0.7-0.9 part of roots of great burdock, 20-22 parts of red phaseolus beans, 22-25 parts of watermelons, 13-15 parts of honey, 10-12 parts of white granulated sugar, 20-22 parts of pig ears, 12-15 parts of soybean sauce, 2-3 parts of sodium alginate and a proper amount of neutral protease. The vermicelli has comprehensive nutrients and is sweet and delicious; the added red phaseolus beans have good effects of relaxing bowel, lowering blood pressure, lowering blood fat, adjusting blood glucose, preventing calculus, building body and losing weight, and are good for patients with heart diseases, nephropathy and edema; and furthermore, a plurality of types of Chinese herbal medicines are added in a processing process, so that the watermelon flavored instant pea vermicelli has the effects of dispelling wind and eliminating dampness, inducing diuresis to alleviate edema, dispelling wind and clearing away internal heat, removing toxicity for detumescence, resisting ageing, and invigorating the kidney and strengthening Yang.

The invention discloses an anti-seismic switch cabinet. The anti-seismic switch cabinet comprises a cabinet body; the interior of the cabinet body is divided into a plurality of functional regions; the partition position of each functional region props against an angle brace; each side plate of the cabinet body is prepared from aluminum-coated zinc steel plate which is bent for multiple times; multiple groups of uniformly distributed ventilating holes are formed in each side plate of the cabinet body; damping strips are mounted around the top plate and the bottom plate of the cabinet body separately; the side plates of the cabinet body are connected with the top plate and the bottom plate through the damping strips; and a damping base is arranged at the bottom of the cabinet body; fixed plates which are L-shaped are arranged on the outer wall of the periphery of the damping base; one sides of the fixed plates are connected with the outer wall of the damping base while the other sides are fixed with the ground; a placement groove matched with the bottom of the cabinet body is formed in the surface of the damping base; the cabinet body is placed in the placement groove; and multiplegroups of anti-seismic springs are mounted below the placement groove in the damping base. The anti-seismic switch cabinet has the high-strength anti-seismic structure, high anti-seismic performance,low production cost and relatively long service life.

The invention discloses an electric power engineering communication cabinet with heat dissipation, ventilation, dust prevention and dehumidification functions, relates to electric power engineering communication equipment, and aims to solve the problem that an existing communication cabinet is poor in heat dissipation, ventilation, dehumidification and dust prevention effects. An air inlet device, an air exhaust device and a filter screen are utilized to form a first ventilation and heat dissipation channel; a dehumidifier and an air outlet pipe are utilized to form a second ventilation and heat dissipation channel, and the two air channels can independently circulate and can also circulate in a crossed mode; meanwhile, a ventilation opening is formed in a partition plate of the exhaust device, and a ventilation fan is fixed to the second mounting chamber; multiple fixed stand columns and the baffle are located in the first mounting chamber, the spring is arranged between the limiting head and the baffle, and when the baffle moves, the spring is in a compressed state; the top end of the air outlet pipe is communicated with the interior of the cabinet body through the second air inlet, and the bottom end of the air outlet pipe is communicated with the air outlet of the dehumidifier; and an air inlet of the dehumidifier is communicated with the interior of the cabinet body through the second air outlet. The beneficial effects are that the ventilation and heat dissipation effects are good, and dehumidification and dust prevention can be realized.

The invention discloses a protective type exhaust pipe casing pipe with a heat radiation function. The protective type exhaust pipe casing pipe with the heat radiation function comprises a casing pipe body, wherein the casing pipe body is connected with an exhaust pipe in a sleeving mode, the two ends of the casing pipe body are communicated, a plurality of protective convex blocks are arranged on the lower end pipe wall of the casing pipe body, vents are formed in the bottoms of the protective convex blocks, the protective convex blocks are arranged backwards aslant, and a rear end outlet of the casing pipe body is further provided with a purification net cover. In this way, the exhaust pipe can be effectively protected, the bottom of the exhaust pipe is prevented from being impacted, the exhaust pipe is prevented from being rusted and corroded, and the casing pipe body has a good ventilation and heat radiation effect.

The invention discloses a cough-relieving atomizing agent and a preparation method thereof, relates to the technical field of cough-relieving atomizing agents, and aims to solve the problems that no good medicinal material has a good treatment effect on pharyngitis at present, although an existing medicament can also cure pharyngitis finally, the treatment time is long, and expectation is difficult to achieve. The cough-relieving atomizing agent comprises the steps: cleaning and drying, crushing and screening, cooking medicinal materials, mixing the medicinal materials, and preparing the medicament: sequentially putting folium eriobotryae, platycodon grandiflorum, honeysuckle, scaphium scaphigerum, isatis root, fritillaria, liquorice, pericarpium citri reticulatae, ephedra and wild chrysanthemum into a cleaning machine, cleaning each medicinal material, taking out the medicinal materials after cleaning, and putting the medicinal materials into a drying machine for drying treatment. According to the cough-relieving atomizing agent and the preparation method thereof, the good effects of clearing heat, relieving sore throat, dispelling wind, dissipating heat, diminishing inflammation and relieving cough can be achieved, the cough-relieving atomizing agent can be suitable for people of different ages, the treatment effect is good, the treatment time is short, the cough-relieving atomizing agent is used in cooperation with an atomizer, and the treatment effect is improved.

The invention discloses an electric power cabinet with a good heat dissipation function. The electric power cabinet comprises a cabinet body, wherein a baffle plate is arranged at the upper end of thecabinet body; a filter net cover is arranged on the upper end face of the cabinet body; a plurality of exhaust holes are formed in the wall of the cabinet body at the lower end of the filter net cover; a maintenance cabinet door is arranged on the front side wall surface of the cabinet body; universal wheels are arranged on the periphery of the bottom surface of the cabinet body; a plurality of ventilation and heat dissipation cylinders are arranged on the bottom surface of the cabinet body; each ventilation and heat dissipation cylinder is internally provided with a drive motor; the drive motors are fixedly installed on the bottom surface of the cabinet body; and fan blades are fixedly installed at the output ends of the drive motors. The product is simple in structure, high in practicability, high in safety, good in effect and beneficial for popularization.

The invention discloses a novel horizontal h-shaped pump gate device. The device comprises a bulkhead gate, a lower-layer water passing flow channel, a water suction horn pipe, a service gate, a bent pipe, a diffusion pipe water outlet flow channel, a flap valve and a horizontal front shaft extension type water pump unit; the horizontal front shaft extension type water pump unit is mounted above the water inlet side of the lower-layer water passing flow channel; one end of the horizontal front shaft extension type water pump unit is connected with the water suction horn pipe through a 90-degree elbow, and the other end of the horizontal front shaft extension type water pump unit is connected with the diffusion pipe water outlet flow channel; the water suction horn pipe extends into the lower-layer water passing flow channel; the flap valve is arranged at an outlet of the diffusion pipe water outlet flow channel and is positioned in a B-side water tank; the lower-layer water flow channel is positioned between an A-side water tank and the B-side water tank; the bulkhead gate is arranged at a communication port of the lower-layer water flow channel and the A-side water tank; and the working gate is arranged at a communication port of the lower-layer water flow channel and the B-side water tank. The device has the advantages of self-flowing water passing function, convenience in ventilation, heat dissipation and operation maintenance, and small occupied plane vertical water flow direction size.