44results about How to "Guaranteed convection" patented technology

The invention discloses a heat-dissipation power distribution box having a self-cleaning function, and relates to the technical field of power distribution boxes. The heat-dissipation power distribution box comprises a box body, wherein an air collection cavity is formed in a lower part of a mesh partition plate in the box body, two vertical plates are vertically and fixedly arranged in the air collection cavity, a driving motor is fixedly arranged between the vertical plates, a driving bevel gear is coaxially fixed at an output shaft of the driving motor, two driven shafts are rotatably and symmetrically arranged in the air collection cavity, and an air outlet mesh plate is fixedly arranged and embedded onto an upper side wall of the box body. Two fan blades are driven to rotate by the driven shafts so as to introduce external air into the box body, hot air in the box body is further discharged, and a good cooling effect is achieved; by upward and downward motion of a brush plate in areciprocating way, repeated cleaning from an inner side wall and an outer wall of an air inlet mesh plate is performed, dust and particles are prevented from being gathered and attached onto the airinlet mesh plate, the air inlet mesh plate is enabled to be smooth and not to be plugged, convection between the hot air in the box body and the external air is ensured, and the cooling efficiency ofthe box body is greatly improved.

The invention discloses a new technology for producing motor fule by using of marsh gas, including marsh gas acquisition system, marsh gas delivery system, marsh gas purifying system, marsh gas compressing system and air adding system, which is characterized in improving marsh gas purifying system, adopting alkaline liquid and serpentine pipe to process CO2, H2S of marsh gas; first adding marsh gas from bottom air inlet to the serpentine pipe filled with alkaline liquid, CO2, H2S of marsh gas contacting with alkaline liquid and absorbed by thereof, alkaline liquid filled with uniform speed into the serpentine pipe by regulating valve of alkaline storage tank to maintain steady concentration of the alkaline liquid; while discharaging alkaline liquid in the serpentine pipe with a certain speed from a outlet, falling discharging alkaline liquid and pressed in the alkaline storage tank by a pump to circulating use alkaline liquid; then filling purified marsh gas in a dehumidifier via a outlet, dehumidifying and filling in a gas storage tank, then pumped into a vehicle steel cylinder by a air pump. The marsh gas produced by this technology is used for vehicle fuel with better effect, can replace natural gas for vehicle with good application prospect, having function of improving living environment of countryside, boosting ecological balance, developing new energy and economics of countryside.

The invention relates to a pure wood energy-saving window and door system, in particular to a pure wood internally-opening and energy-saving window and door system. In the pure wood internally-opening and energy-saving window and door system, from an indoor side to an outdoor side, frame strips of a window frame are respectively provided with a plurality of step surfaces, and sash strips of a window sash are respectively provided with a plurality of step surfaces; middle sash adhesive tapes are respectively arranged on the second step surface of the sash strip and respectively butt against the second step surface of the frame strip; outer frame adhesive tapes are respectively arranged on the third step surface of the frame strip and respectively butt against the third step surface of the sash strip; and a watertight shutter is arranged on a lower frame strip and provided with a fixing part, an upper watertight part and a lower watertight part, the fixing part is fixedly arranged on the lower frame strip, the upper watertight part is protruded out of the outer side face of the lower sash strip, the end part of the upper watertight part extends to the outer side face of the lower sash strip, and the lower watertight shutter is adhered to and arranged on the outer side face of the lower frame strip. The invention has the characteristics of attractive appearance and durability, sealing and dust prevention, high thermal insulation, high sound insulation and very ideal water tightness effect.

The invention provides an indoor low-temperature electric heating furnace comprising a furnace door, a furnace body steel structure, a furnace lining, a furnace door lifting mechanism, a working area, and a series of heating elements arranged inside a furnace body, wherein the indoor low-temperature electric heating furnace also comprises a plurality of axial flow fans; the axial flow fans are embedded in the upper part of the furnace body steel structure; a grid plate is arranged at the front end of each axial flow fan; each grid plate is provided with a plurality of air guide outlets according to a left-middle-right order. The indoor low-temperature electric heating furnace provided by the invention has the beneficial effects that the certain gas convection can be ensured at each corner inside the furnace body in the production process, so as to ensure the uniformity of the temperature. Thus, the stability of the production of processing components is improved, and the stability of a technology is met.

The invention provides an arc-shaped closed-structure heat exchanger for descaling with sound waves. The heat exchanger comprises an upper collecting pipe, a lower collecting pipe and an arc-shaped closed finned pipe connected with the upper collecting pipe and the lower collecting pipe, the heat exchanger comprises a descaling device, superaudio frequency pulse signals are sent by a main engine of an automatic scale prevention device and are converted by an energy converter to generate superaudio frequency pulse vibration, the superaudio frequency pulse vibration acts on water in the metal pipe of the energy converter, the superaudio frequency pulse vibration enables high-speed microflow and a cavitation effect to be generated between the metal pipe and the water, scales are prevented from being formed, heat exchanging resistance is reduced, heat exchange efficiency maximization is achieved to save energy, and the aim of environment protection and energy saving is achieved.

The invention relates to a device on a liquid fuel purification device, in particular to a diesel filter and a heating device thereof. The diesel filter comprises filter paper and the heating device. The heating device comprises a lower end cover at the lower portion of the filter paper of the filter. The heating device comprises a magnetic core and a magnetic exciting coil. The magnetic exciting coil is wound around the magnetic core. A magnetic core middle column is closely attached to the lower end cover. The magnetic exciting coil is connected with a circuit board. The circuit board is connected with a direct current power source. The structure of the filter is utilized, diesel oil at the inner end and the outer end of the filter paper is heated at the same time, the heating efficiency is high, and the temperature rise speed is high. The problems that filter paper in a filter of a heavy load truck is blocked by wax due to the over low temperature in winter, consequently, starting is difficulty, and oil supply is not smooth are solved.

The invention discloses a box-type substation. The box-type substation at least comprises a high-voltage switchgear chamber, a low-voltage switchgear chamber and a transformer chamber, which are distributed in the shape of steps, wherein equipment circuits in the high-voltage switchgear chamber, the low-voltage switchgear chamber and the transformer chamber are M-shaped, U-shaped or V-shaped. The box-type substation is different from the prior art on the aspect that a structure that a plurality of layers are distributed up and down is creatively adopted, so that the size of the box-type substation is 1 to 3 times smaller than that of the traditional substation, the occupation area is reduced, the box-type substation is convenient to transport, and the transportation cost is reduced; a downward foundation of the traditional box-type substation is not required to be manufactured, the difficulty for constructing a project is reduced, the cost is reduced, and adverse influence to each piece of equipment in the box-type substation by humidity in the semi-buried foundation can be better avoided.

The invention discloses a preventing system based on in-vehicle CO concentration monitoring. The preventing system comprises a vehicular computer, a CO detecting module, a power module, an automobilefrequency converter, a vehicular air conditioner, an automobile window regulating module and a seat regulating module, wherein the CO detecting module transmits data signals to the vehicle computer through CAN bus; the control output end of the power module is connected with the input ends of the automobile frequency converter, the vehicular air conditioner, the automobile window regulating moduleand the automobile seat regulating module; the power output end of the power module is connected with the power input ends of the vehicular computer and the automobile frequency converter; the outputend of the automobile frequency converter is connected with the power input end of the vehicular air conditioner. The preventing system has the advantages that in-vehicle CO concentration can be detected in real time, an intelligent automobile window controller is controlled to open automobile windows when the in-vehicle CO concentration reaches a preset value, the air blowing intensity of the vehicular air conditioner is controlled to increase at the same time to achieve air convection between the in-vehicle air and the air of an external environment, and the in-vehicle CO concentration is kept lower than a lowest CO poisoning threshold.

The invention discloses a method for in-situ precipitation and separation of arsenic in copper electrolyte. In a copper electrolytic refining process, the current density is controlled to be 400-600 A / m2; reaction is performed adopting a way that liquid is fed from bottom and discharged from the top or the liquid is fed between parallel polar plates; and moreover, BiAsO4 seed crystals are added after the reaction is performed for at least 4 hours so as to from in-situ induction of arsenic-containing crystalline precipitates in the copper electrolyte. according to the method disclosed by the invention, by utilizing the characteristic that substances containing arsenic, stibium and bismuth in the copper electrolyte can easily react with one another and on the premise of guaranteeing normal running of an electrolysis process, the formation and growth of arsenic-containing crystalline precipitates are induced by a synergistic effect of relevant parameters (current density, circulation wayof the electrolyte, the distance between an anode plate and an electrolyte inlet, and the concentration of the seed crystal) during electrolytic refining, thereby realizing high-efficiency sedimentation of the precipitates in the electrolyte and in-situ separation between the precipitates and muddy substances such as anode mud.

The invention discloses an automatic cleaning device for a natural gas pipeline. The cleaning device comprises a device shell and a rubber cup coaxially and fixedly installed outside the device shell; the device shell is composed of a moving assembly cavity, a collecting bin, a rotating part and a gas injection part from left to right; a telescopic moving assembly is movably installed in the moving assembly cavity, a collecting bin is coaxially and fixedly connected to one side of the moving assembly cavity, a fixing cover is fixedly installed in the collecting bin, fan blades are coaxially and rotationally installed in the fixing cover, a rotating shaft is installed on a coaxial fixing rod of the fan blades, a shaft body of the rotating shaft is rotationally connected with a motor through a chain, the motor is fixedly installed on the inner wall of one side of the collecting bin, and a lithium battery is fixedly installed in the collecting bin; a rotating part is coaxially and rotationally installed at the end, away from the moving assembly cavity, of the collecting bin through a sealing bearing, a circular through opening penetrates through the side wall, away from the collecting bin, of the rotating part, a plurality of supporting columns are fixedly installed on the inner wall of the through opening, and fixing rings are fixedly installed at the ends of the supporting columns.

The invention provides an uninterrupted temporary ventilation dust removal system during the construction period of a nuclear island containment plant. The uninterrupted temporary ventilation dust removal system comprises a blast pipe section module in the nuclear island containment plant and draught fan modules on the two sides of the nuclear island containment plant, wherein two ports of the blast pipe section module are connected with the air inlets of the draught fan modules on the two sides separately; the air outlets of the draught fan modules are connected with exhaust outlets; each ofthe draught fan modules comprises at least two first draught fans and at least one second draught fan; the first draught fans are connected in parallel and then are connected with the second draught fans in series; the inlets of the first draught fans are connected with the blast pipe section module; the outlets of the first draught fans are connected with the inlets of the second draught fans; and the outlets of the second draught fans are connected with the exhaust outlets. The uninterrupted temporary ventilation dust removal system is convenient to repair and maintain, easy to carry and mount, large in ventilation quantity and excellent in dust removal effect, has the characteristic of uninterrupted air exhaust for 24 hours and can sufficiently ensure cross ventilation of all areas anda room, so that the air quality in the nuclear island containment plant is improved, the noise in the containment is lowered and the working environment of constructors is improved.

A fresh-keeping bacteriostatic lyophobic porous film for juicy food and a preparation technology thereof. The porous film has a microstructural single layer or multiple layers, wherein each single layer comprises a contact layer, an interface layer and a back side layer. The preparation technology comprises raw material proportioning, one-step or two-step vacuum pore-forming by pore-forming method and machinery pore-forming, wherein the raw materials contain 0-100% of PE, 100-0% of PP, 0-10% of a bacteriostatic agent and 0-10% of other components (such as a hydrophilizing agent, a pigment and the like); the vacuum pore-forming refers to plastic raw material technological film forming as well as pore forming by negative pressure suction; one step method refers to online film-forming and pore-forming by one step; two step method refers to film forming and pore forming respectively completed on two equipment; and the machinery pore-forming refers to pore forming by knife mold extruding, shearing and penetrating under the action of mechanical force. The porous film, which is prepared by the preparation technology and has a porous structure, has food fresh-keeping, bacteriostatic and anti-seepage effects.

The invention discloses a sunlight-type heating adjustment device in a low-temperature environment, relates to the field of power online monitoring, and aims at solving a problem that the internal temperature of a thermal insulation box cannot be adjusted automatically. The device is disposed in the thermal insulation box, and is communicated with a heat collector. The thermal insulation box is communicated with the heat collector through a cold air inlet of the heat collector. When the temperature of the external environment is high, the hot air generated by the heat collector is directly discharged to the atmosphere, and the interior of the thermal insulation box is always communicated with the atmosphere. When the temperature of the external environment is low, the hot air generated by the heat collector directly enters the thermal insulation box, and the thermal insulation box is insulated with the atmosphere. The beneficial effects are that the purpose of automatically adjusting the temperature is achieved; the device does not waste energy, saves the electric energy, and is simple in structure. The device is suitable for the automatic adjustment of the internal temperature of the thermal insulation box.

Disclosed are a cooling method and a device for a secondary RC network absorber of a traction transformer of an electric locomotive. A cooling fan system is arranged nearby the secondary RC network absorber of the traction transformer and is controlled by a locomotive control system. When a control circuit for the working of a cooling fan is in a static state after a locomotive pantograph rises to be electrified, the cooling fan works automatically when a traction fan does not work, so that convection of ambient air of resistors of the RC network absorber and peripheral devices (or parts) is guaranteed, and ambient working temperatures of the resistors and the peripheral devices are reduced; and the traction fan controls an auxiliary chain of a contactor to cut off a working power supply of the cooling fan automatically, and accordingly, the added cooling fan stops automatically.

The invention discloses a manufacturing process of breathable bionic structure knitted fabric. A fabric body is woven on a knitting machine according to a certain weaving rule, an air layer jacquard breathable structure is integrally woven and formed on the fabric body, and the air layer jacquard breathable structure includes a fish scale-shaped weave on the surface and a bird nest-shaped weave on the inner surface. damp and hot air is continuously exhausted and dry air is sucked through the bird nest-shaped weave, so that convection between external air and the skin is kept, sweat attached to the inner side of the bird nest-shaped weave is quickly evaporated, the effects of quickly dissipating heat and keeping the fabric dry are achieved, and when a wearer has a rest after stopping exercise, an evaporation rate of the sweet on the fabric body is reduced, only the sweat in the fish scale-shaped weave is continuously evaporated, and the bird nest-shaped tissue on the inner side of the fabric separates the fish scale-shaped weave from the skin, so that a wearer does not feel wet and cold discomfort caused by sweat evaporation.

A containment building separation system at a nuclear power plant belongs to the field of providing safe operation of a nuclear power plant in various regimes, including emergency regimes. A system for dividing a containment building of a nuclear power plant into isolated rooms comprises a device for dividing the pressurized volume, which device is arranged in an annular gap between a floor dividing the rooms and a wall of the containment building, an air supply device and an annular collector which is connected to the latter and is connected to inflatable shutters which are capable, in a state filled with air, of isolating air environments of rooms of the containment building and, in a deflated state, of connecting air environments of rooms of the containment building. In an emergency regime, an air supply to the inflatable shutters is stopped, the latter are lowered, completely opening the annular gap and allowing convection throughout the volume of the containment building. The system can be used in containment buildings of nuclear power plants of any type.

The invention discloses a combined bulb lamp. The combined bulb lamp comprises a lamp holder and a lampshade, and further comprises a cylindrical lamp holder, an LED lamp strip is vertically fixed onthe outer surface of the cylindrical lamp holder, and a cylindrical lamp net is further arranged; vertical through grooves are uniformly formed in the side wall of the cylindrical lamp net, insertingpieces are fixed at the top end of the cylindrical lamp net, a heat dissipation lamp sleeve is further arranged on the lamp holder, a buckling groove is formed in the inner wall of the heat dissipation lamp sleeve, and a buckling bulge is arranged on the lamp holder; a driving power circuit board is arranged in the lamp holder, inserting grooves are formed in the inner wall of the heat dissipationlamp sleeve, the cylindrical lamp frame is inserted into the heat dissipation lamp sleeve in a clamped mode, and the inserting pieces are fixed in the inserting grooves in an inserted and clamped mode; and a connecting circular ring bulge is further arranged at the bottom end of the heat dissipation lamp sleeve, and the opening of the lampshade is inserted into the connecting circular ring bulgein a fitting mode. According to the bulb lamp, the structure is reasonable in arrangement, the use requirements of different power illumination replacement can be met, the heat dissipation performanceis effectively guaranteed, and then the service life is guaranteed, the overall heat dissipation performance is improved, and the use stability is good.

The invention discloses a pool bottom structure for producing ultra clear glass. The pool bottom structure comprises a feed port part (7) and a clarification part (8); a first step (1), a second step (2), a third step (3) and a fourth step (4) which are sequentially higher are arranged at the right side of the feed port part (7), a bubbling device (5) is arranged in the middle of the second step (2), a furnace ridge (6) is arranged at the right side of the fourth step (4), and the clarification part (8) is arranged at the right side of the furnace ridge (6). The pool bottom structure for producing the ultra clear glass can accelerate discharging of microbubbles and lower the hot spot temperature and has the advantages of accelerating clarification, blocking reflux of clarified and homogenized glass liquid and stabilizing glass liquid flow.

The invention relates to the technical field of air purifiers, in particular to an air purifier with a built-in UV lamp and a built-in filter element placement structure. The product comprises a bottom cover which is an outer shell body with a retractable structure; a filter main body mechanism arranged in the outer shell body, clamped on the chassis and in a hollow cylindrical shape; the chassisarranged on the bottom cover in a clamping manner; a UV lamp mechanism arranged in the filter main body mechanism and arranged on the chassis; wherein the UV lamp mechanism comprises a UV lamp main body detachably arranged on the chassis, a UV lampshade which is arranged on the peripheral side of the UV lamp main body and is prepared from a material with an anti-UV index of F1 grade, and a UV lampshade end cover which covers the UV lampshade and is prepared from a material with an anti-UV index of F1 grade; and a wind wheel mechanism is arranged on the inner wall of the outer shell and arranged above the filter main body mechanism. The filter element and the UV lamp are convenient to disassemble, the disinfection effect is good, the service life is long, and the like.

The invention discloses an efficient heat dissipation motor controller shell, and belongs to the technical field of controller shells, the efficient heat dissipation motor controller shell comprises a shell body, communicated frame plates are arranged on the front side surface and the rear side surface of the shell body, limiting frames are arranged in the frame plates, and filter screens are arranged in the limiting frames; and rotating rods are arranged on the two sides of the surface of the limiting frame, fixing blocks are arranged at the outer ends of the rotating rods, the fixing blocks are tightly attached to the surface of the filter screen, and an electric push rod is arranged at the upper end of the frame plate. The arc-shaped sliding plate reciprocates along the track of the arc-shaped sliding rail in an arc-shaped manner, so that the fan fixed on the arc-shaped sliding plate blows air in all directions, the fan blows air to dissipate heat of the encoder body, the motor and the controller at the circle center position of the inner side of the arc-shaped sliding plate, and the fan dissipates heat without dead angles along the external parts of the encoder body, the motor and the controller. Heat dissipation is efficient, and the heat dissipation effect is improved.

The invention discloses a pool bottom structure for producing ultra clear glass. The pool bottom structure comprises a feed port part (7) and a clarification part (8); a first step (1), a second step (2), a third step (3) and a fourth step (4) which are sequentially higher are arranged at the right side of the feed port part (7), a bubbling device (5) is arranged in the middle of the second step (2), a furnace ridge (6) is arranged at the right side of the fourth step (4), and the clarification part (8) is arranged at the right side of the furnace ridge (6). The pool bottom structure for producing the ultra clear glass can accelerate discharging of microbubbles and lower the hot spot temperature and has the advantages of accelerating clarification, blocking reflux of clarified and homogenized glass liquid and stabilizing glass liquid flow.

The invention relates to a distribution box which comprises a shell, a box door, an electric wire mainboard, a lifting device and a push-out device, the box door is hinged to the front end of the shell, the electric wire mainboard is arranged in the shell, the lifting device is arranged on the outer wall of the shell, and the push-out device is installed on the electric wire mainboard. According to the lifting device, lifting of the distribution box can be manually controlled, the situation that due to the fact that the installation height of the distribution box is large, a ladder needs to be manually built for overhauling operation, and the danger of the overhauling process is high can be avoided, the ladder does not need to be manually carried, and the workload of overhauling personnel is relieved.

The invention discloses a disease prevention and treatment technology for Pekin ducks. In summer, the temperature is high, the weather is hot, a greenhouse is kept ventilated and cool, ventilation openings are formed in the east side, the west side and the top of the plastic greenhouse, direct sunlight is avoided, it is guaranteed that sufficient and cool drinking water is supplied to meat ducks in the greenhouse, ventilation is realized by adjusting plastic films on the two sides and the ventilation openings, when the air temperature is too high, ventilation equipment is adopted to enhance ventilation, guarantee air convection and reduce NH3 residues, excrement is regularly removed, and duckling hepatitis, duck infectious serositis, duck pasteurellosis and duck pasteurellosis are prevented by injecting duck plague vaccines, so that the survival rate of ducks is greatly increased, the ducks can grow strongly. The technology solves the problem that the mortality rate of the cherry valley breeding ducks is higher due to many diseases in the breeding process of the Pekin ducks.

The LED air purification lamp comprises a lamp body, an air inlet is formed in the upper end of the lamp body, a filter screen is fixedly installed on the inner wall of the air inlet, a suction fan is fixedly installed in the middle of a supporting plate, and a filter plate is fixedly installed on the portion, located on the inner wall of the lamp body, of the lower portion of the supporting plate. An activated carbon plate is fixedly connected to the lower surface of the filter plate, and cooling fins are fixedly connected to the inner side wall of the lamp body. According to the LED air purification lamp, large particles are filtered out through the filter screen in the air inlet, then small particles are filtered out through the filter plate, harmful substances in air are adsorbed through the activated carbon plate, finally bacteria in the air are killed through the ultraviolet lamp, aromatherapy is put into the aromatherapy bag, and the air purification effect is achieved. And the air is fully volatilized and discharged together through the air outlet, so that the mood of people can be relieved, the mental pressure can be relieved, and the prevention and health protection effects are achieved.

Disclosed are a cooling method and a device for a secondary RC network absorber of a traction transformer of an electric locomotive. A cooling fan system is arranged nearby the secondary RC network absorber of the traction transformer and is controlled by a locomotive control system. When a control circuit for the working of a cooling fan is in a static state after a locomotive pantograph rises to be electrified, the cooling fan works automatically when a traction fan does not work, so that convection of ambient air of resistors of the RC network absorber and peripheral devices (or parts) is guaranteed, and ambient working temperatures of the resistors and the peripheral devices are reduced; and the traction fan controls an auxiliary chain of a contactor to cut off a working power supply of the cooling fan automatically, and accordingly, the added cooling fan stops automatically.

An electric heating towel rack comprises a face plate, a frame, a towel shelf, a temperature sensor and a control box, and is characterized in that the frame sleeves the face plate, a rear shell is arranged on the back face of the face plate, a reflection heating layer is formed between the rear shell and the face plate, mesh faces are arranged on the upper side and the lower side of the reflection heating layer, reinforcing rods are arranged on the back face of the face plate in up-down symmetry. A heating device is arranged in the middle of the back face of the face plate. Installing is simple, vapor is effectively prevented from entering the control box, and towels can be effectively dried.

The invention discloses a radiator for an LED lamp. The radiator for the LED lamp comprises a substrate and a heat dissipation device installed on the substrate. The heat dissipation device is a scroll which is formed through spiral rotation, and is fixed on the surface of the substrate, the rotation axial direction of the scroll is in intersection with the substrate, and heat dissipation is achieved through a spiral gap channel of the scroll. The invention further discloses a method for producing the radiator for the LED lamp. The method for producing the radiator for the LED lamp comprises the following steps that (S1) the substrate is fixed on a rotary shaft, wherein the substrate rotates along with the rotary shaft; (S2) a clamp is used for arranging a continuous thin plate for heat dissipation on the surface of the substrate in a spiral surrounding mode along with rotation of the substrate, and the continuous thin plate is welded on the substrate through ultrasonic bonding to form the scroll fixed on the substrate; (S3) a tool is used for cutting off the tail end of the scroll to finish production of the radiator. The radiator for the LED lamp and the method for producing the radiator for the LED lamp can achieve simple and continuous production of the radiator, reduces the size, and improves efficiency of heat dissipation.