41 results about "Working environment" patented technology

The invention discloses an amphibious power propulsion device suitable for sea and air, comprising a frame type retainer, a tilting motor, a power motor fixedly arranged at the middle part of the retainer, as well as propellers for air and propellers for sea, which are coaxially and rotatably arranged at a certain interval, wherein the propellers for air are in driving connection with the power motor through a unidirectional rotation mechanism, the propellers for sea are in driving connection with the power motor, a rotating shaft of the tilting motor is fixed at the outer side of the retainer through a connecting plate, and the rotating axis of the tilting motor is perpendicular to the rotating axis of the propellers for air and the propellers for sea. The invention also provides an amphibious multi-axis aircraft suitable for sea and air. According to the amphibious power propulsion device and the amphibious multi-axis aircraft, the same motor is adopted to simultaneously adapt to two different working environments, namely in the air and under the water, thereby reducing the weight of the amphibious aircraft for sea and air and simplifying the structure of the aircraft; and meanwhile, the tilting motor is used for controlling the direction of power output, thereby increasing the maneuverability of the amphibious aircraft and strengthening the capability of the amphibious aircraft for finishing complex tasks.

The invention provides a hydrogen fuel battery starting system and method. The hydrogen fuel battery starting system comprises a water pipeline; the water pipeline is connected in series with a cooling water pipeline of a hydrogen fuel battery electric pile and is connected in parallel with an external heat-dissipating system of the hydrogen fuel battery electric pile; an electric heater is arranged in the water pipeline; when the hydrogen fuel battery electric pile enters a working state, the electric heater is switched into electric energy transmitted by the hydrogen fuel battery electric pile to perform heating so as to heat a water channel of the water pipeline, and the hydrogen fuel battery electric pile is heated by the circulating water channel; the water pipeline is also provided with an electromagnetic valve for controlling on or off of the water pipeline. By the hydrogen fuel battery starting system and the hydrogen fuel battery starting method, the problems that high-power output cannot be realized at the starting stage of the hydrogen fuel battery in the prior art and boosting DC/DC is difficult in boosting output are solved, so that rapid start of the hydrogen fuel battery is guaranteed, the working environment of the boosting DC/DC is improved, and the electric energy output is relatively stable.

The invention discloses a control method and device for a range hood. The control method comprises the steps that work environment parameters of a first space where the range hood is located are collected; and according to the work environment parameters, an air volume control signal is generated and used for controlling the inlet air volumes of an air inlet of a condenser and an air inlet of an evaporator, wherein the condenser and the evaporator are arranged in a cold air system of the range hood. Through the control method and device for the range hood, the technical problem that an existing range hood cannot effectively lower the environment temperature is solved.

The invention discloses a pipeline transportation means for alumyte. First, placing a raw material crusher on the alumyte mine, alumyte, lime and water are feed in the raw material crusher proportional. The water cut of the aqueous size after grinding is 45-55%; Secondary, sending the aqueous size to the aluminum ore size box in the alumina manufacturer using the pump amd the pipe; and then press with a pressing filter. The water-content coefficient of the filter cake after press is lower than 20%, And then send the filter cake to the aluminum ore bunker stored and dry the water-content coefficient of the filter cake to lower than 10%. The invention can reduce program investments substantial, cost down transport cost and improve the work environment of the alumina manufacturer.

The invention discloses a bismaleimide resin/silicone rubber ablation-resistant thermal insulation composite material and a preparation method thereof. The composite material is prepared from the following components in parts by mass: 20-80 parts of methylvinylsilicone rubber, 20-80 parts of methyl vinyl phenyl polysiloxane rubber, 1-5 parts of dicumyl peroxide, 15-40 parts of white carbon black, 5-15 parts of chopped fibers, 5-40 parts of bismaleimide, 1-5 parts of hydroxyl silicone oil and 1-20 parts of zirconium boride. The bismaleimide resin/silicone rubber ablation-resistant thermal insulation composite material has high vulcanization molding quality, and a dense hard carbon layer can be formed on the surface of an ablation layer of the thermal insulation composite material in the ablation process to play a role of preventing the thermal insulation composite material from further ablation, thereby improving the ablation resistance and antioxygenic property of the thermal insulation composite material, enabling the thermal insulation composite material to meet the requirements of operating environments with oxygen enrichment, high temperature, high-speed gas flow and particle erosion, and solving the problem that the thermal insulation material is easy to flaw and be burnt out under the working environments with high temperature, high pressure, oxygen enrichment and particle erosion.

The invention relates to an engine power system, and aims to provide a pneumatic and internal combustion hybrid system based on multi-stage utilization of afterheat of cooled water. According to the system, an air inlet pressure stabilization box of a pneumatic engine is connected with an air storage tank through a high pressure air pipeline; an air cylinder body and an air cylinder cover of a water-cooled internal combustion engine, a water pump and a pipeline form loop circulation; a circulation loop of the cooling water in the water-cooled internal combustion engine is divided into three stages; the first stage of the circulation loop is small circulation of the internal combustion engine body; the second stage of the circulation loop and the third stage of the circulation loop are respectively added into a pneumatic engine air cylinder and a water and air heat exchanger; and the stages of circulation loops are switched by turning on and turning off an electronic thermostat. The system makes full use of the afterheat of the cooling water in the internal combustion engine, so that the working environment of the pneumatic engine is improved, the circulation output power of the pneumatic engine is improved effectively, and the air consumption rate of the pneumatic engine is reduced finally; furthermore, the energy consumption of the internal combustion engine is reduced; and the dynamic property and the economy of the power system are improved.

The invention provides a nano-photocatalyst waste gas purification device which comprises a cabinet and a plurality of photocatalysis modules, wherein the photocatalysis modules are distributed in parallel in a gas inlet direction inside the cabinet; the photocatalysis modules comprise photocatalysis filtering nets which cover a gas inlet section inside the cabinet, and reaction lamp groups for driving the photocatalysis filtering nets to implement catalysis reactions; and a gas to be purified is fed into the cabinet and passes through the photocatalysis modules, and under the action of the reaction lamp groups and the photocatalysis filtering nets, pollutants in the gas to be purified can be decomposed. By adopting the nano-photocatalyst waste gas purification device provided by the invention, various organic and inorganic pollutants in a working environment can be decomposed, very high purification efficiency can be achieved, an environment can be effectively purified, pollution can be eliminated, the operation conditions can be improved, and body health of people can be ensured. In addition, the nano-photocatalyst waste gas purification device is simple and compact in structure, automatic operation can be achieved, the operation and maintenance cost is low, and large-scale application can be facilitated.

The invention discloses a user attribute determination method and device, equipment and a storage medium, and belongs to the technical field of the Internet. The method comprises the following steps of: obtaining a plurality of historical orders of a target user, classifying the fulfillment addresses included in the plurality of historical orders to obtain at least one first fulfillment address and at least one second fulfillment address, the fulfillment time in the historical order to which each first fulfillment address belongs being a workday, and the fulfillment time in the historical order to which each second fulfillment address belongs being a holiday; and processing the at least one first fulfillment address and the at least one second fulfillment address by using an NLP technologyto obtain a user attribute of the target user. Since the first fulfillment address of the workday can reflect the working environment of the target user, and the second fulfillment address of the holiday can reflect the living environment or travel environment of the target user, the user attribute of the target user can be accurately determined based on the scheme of the invention.

The invention discloses a composite sliding mode speed control method and system for a cylindrical permanent magnet linear synchronous motor, and belongs to the technical field of motor control. A terminal attractor is introduced on the basis of an exponential reaching law, and a new sliding mode reaching law is provided. Based on the reaching law, a sliding mode speed controller of the cylindrical permanent magnet linear synchronous motor is established, the convergence speed of the system state can be increased, and the chattering phenomenon can be effectively restrained. Meanwhile, an extended sliding mode disturbance observer is designed and used for estimating system lumped disturbance and providing feedforward compensation for a speed controller, and a composite sliding mode speed control strategy is formed. The cylindrical permanent magnet linear synchronous motor adopts a double-closed-loop control strategy of composite sliding mode speed control and current PI control based on a reaching law and an extended sliding mode disturbance observer. According to the method, the dynamic response speed of the system is increased, the anti-interference capability and robustness of the system are enhanced, and the operation performance and reliability of the motor in a complex working environment are improved.

The invention discloses a power battery box and a vehicle with the same. The power battery box is installed beneath a vehicle floor and comprises an upper box body and a lower box body, the upper box body and the lower box body are arranged in a buckled mode so as to limit a battery installation space used for installing a power battery between the upper box body and the lower box body, and a sealing pad is arranged between the upper box body and the lower box body. According to the power battery box, water or dust can be prevented from entering the power battery box, and therefore the power battery can be in a safe and stable working environment.

The invention discloses an acid-washing exhaust gas lead-out device for a titanium metal tube, and belongs to the technical field of environmental protection facilities. The acid-washing exhaust gas lead-out device comprises an acid-washing groove, a cover plate used for covering the open part of the acid-washing groove, a gas collection groove, and a negative pressure suction mechanism used for leading the acid-washing exhaust gas to a purification device to perform purification treatment, wherein a group of acid-washing exhaust gas lead-out holes used for leading out an acid-washing exhaust gas in the acid-washing groove cavity of the acid-washing groove are formed in the groove wall at one side of the length direction of the acid-washing groove and located in the upper part of the groove wall in a spacing state; the cover plate is pivotedly arranged on the acid-washing groove; a part corresponding to the acid-washing exhaust gas lead-out holes, of the gas collection groove is fixed with the outer wall at one side of the length direction of the acid-washing groove, and the groove cavity of the gas collection groove is communicated with the acid-washing exhaust gas lead-out holes; and the negative pressure suction mechanism is connected with the gas collection groove in a matching manner, and communicated with the groove cavity of the gas collection groove. The acid-washing exhaust gas lead-out device has the following advantages that the influence of the acid-washing exhaust gas on a working environment and the harm thereof on the health of workers are avoided; an ideal exhaust gas collection effect is obtained; and the cost of the purification treatment is reduced.

The portable engineering investigation equipment fixing support for road building construction comprises a base, first rotating seats are arranged on the lower side of the base in a circumferential array mode, a rough leveling mechanism, a linkage mechanism and a telescopic rod are arranged on the base, the rough leveling mechanism is arranged on the upper side of the base, the linkage mechanism is arranged on the lower side of the base, and the telescopic rod is arranged on the linkage mechanism. One end of the telescopic rod is arranged in the first rotating seat, the telescopic rod is hinged to the first rotating seat, and a supporting mechanism is arranged at the lower end of the telescopic rod. The opening angle of the telescopic rod is adjusted through the linkage mechanism, the linkage ring is rapidly fixed and loosened through the padlock, rapid adjustment of the opening angle of the fixing support is achieved, and rapid replacement of the supporting legs is achieved through cooperation of the conversion frame and the second buckle so as to adapt to different working environments; and coarse leveling adjustment can be performed on the mounting seat through the coarse leveling mechanism, so that rapid leveling of the exploration equipment is realized.

The invention relates to a spraying system for mold cooling. The spraying system comprises a manipulator mounting table, a machine table and a manipulator, wherein the machine table is mounted on theupper end surface of a die-casting machine table; the manipulator mounting table is arranged at the position, close to a mold closing part, of the machine table; the manipulator is mounted on the manipulator mounting table, wherein the end of the manipulator extends into the mold closing part; a valve box assembly is vertically mounted on the machine table; the manipulator is multi-section rotating shaft type; and a spraying assembly is mounted at the lower end of the manipulator. The spraying system for mold cooling has the characteristics that the installation is convenient, the operation issimple, the energy consumption and the water resource are saved, the work environment is ensured to be clean, the cooling speed is improved, and the like.

The invention discloses an underground mine medium-length hole blasting well formation technology. The specification of the cross section of an operated raise is 2.0 mX2.0 m, the height range of the raise is 6 m-11 m, one or two charging holes are formed in the center of a cutting raise through a mesopore trolley, empty holes are formed around the central charging hole, and peripheral charging holes are formed in the cross section of the raise in a segmented mode. By adopting the technical scheme, the central charging hole of the cutting raise is firstly blasted, then the peripheral charging holes at the corners of the hexagonal empty hole are correspondingly blasted to form a free surface and a compensation space, and finally the peripheral charging holes are blasted in sections on the cross section of the raise, so that one-time blasting well formation is realized; and the technology can guarantee the safety of the working environment, can effectively reduce the manual workload, saves the construction cost, and is suitable for tunneling operation under simple or complex conditions of blasting ore rocks.

The invention discloses a cutting device with a leftover material collecting function for mechanical equipment production. The cutting device comprises a bottom plate, a supporting plate is welded toone end of the top of the bottom plate, a fixing plate is welded to the top of the supporting plate, a motor is installed at one end of the outer wall of the bottom of the fixing plate, and an outputshaft of the motor is connected with a cutting blade; and two hydraulic oil cylinders are installed at the other end of the top of the bottom plate, a same object placing plate is fixed to piston rodsof the two hydraulic oil cylinders, a fixing frame is installed at the end, close to the cutting blade, of the top of the object placing plate, and a threaded rod is in threaded connection with the middle of the outer wall of the top of the fixing frame. Cutting waste can be well collected for secondary utilization, the production cost is reduced, meanwhile, scraps generated during cutting can bepumped out in time, the surrounding working environment is protected, the side, needing to be cut, of a plate can be rapidly fixed through a pressing plate, the plate is lifted to the proper height through the hydraulic oil cylinders, and therefore, the working efficiency is greatly improved.

The invention provides a device and system for monitoring the state of a mudguard. Data acquisition terminals and a microprocessor transmit data mutually in a wireless manner, so that lots of complicated wiring is avoided, the flexibility and practicability of the device are improved, the device construction cost and construction difficulty are reduced, and the staff can carry out maintenance and repairing conveniently. A need of selecting more detection points is met; and acquisition units can be installed flexibly. A GPS positioning system is used for real-time positioning of a mudguard; the influence on the displacement of the mudguard position by factors like a water velocity can be eliminated during the analysis; and thus location information can be provided in real time in severe working environments like a windstorm day, so that a phenomenon that the staff comes and goes to the field frequently to determine the location of the mudguard is avoided and thus the time and manpower are saved. With the device provided by the invention, the reliability of the mudguard during construction is improved; the ecological safety during the construction process is enhanced; the practicability is high; and the device has broad market application prospects.

The present invention provides a sealing structure of duplex cylinder compressor lower bearing and a lower sound eliminator, which includes a lower bearing and a lower sound eliminator; characterized in that a corrugated pipe and a ferrule are set between the lower bearing and the lower sound eliminator; the corrugated pipe is set on the location where the lower sound eliminator contacts with the lower bearing non-working surface small end; lateral wall of the ferrule is provided with a convex slice, wherein the ferrule is set on the location where the lower sound eliminator contacts with the lower bearing non-working surface big end and the convex slice presses the depressed part of the lower valve sheet where to mount the screw hole; leakage between the lower bearing and the lower sound eliminator can be effectively overcome; denoise performance of the sound eliminator and work efficiency of the compressor can be enhanced; working environment of the compressor can be improved; and service life of the compressor can be prolonged.

The invention discloses efficient grinding equipment for a hot-melt reflective coating. The efficient grinding equipment comprises a shell, supporting legs and a filter sieve; the supporting legs arearranged at the four corners of the bottom of the shell; the filter sieve is arranged at the upper part of the interior of the shell; and one side of the bottom of the filter sieve is fixed to a supporting plate through a spring column. According to the efficient grinding equipment, the filter sieve is arranged in the equipment shell, a vibrator vibrates the filter sieve so as to separate large-particle raw materials, coating powder meeting the conditions is collected through a first collecting hopper to be conveyed to the outside, then large particles are independently ground and crushed through a grinding roller, by means of the design, the grinding roller only needs to grind the large particles, so that the grinding efficiency and effect are improved, an air draft device is arranged atthe bottom of a discharging pipe, so that the coating powder can be conveniently collected by the first collecting hopper and a second collecting hopper through the air draft device, and the phenomenon that the working environment is influenced due to the fact that dust in the equipment flies upward can be avoided.

The invention provides a tension-compression fatigue test device for an engine cylinder body part. The device comprises an upper connecting flange, the upper part of the upper connecting flange is used for being connected with an upper actuating head of a high-frequency tester, a non-standard cylinder cover is arranged below the upper connecting flange, a test cylinder body sample piece is arranged below the non-standard cylinder cover, and a straight shaft is arranged at a main bearing hole of the test cylinder body sample piece; the length of the straight shaft stretches across a main bearing seat adjacent to the test cylinder body sample piece, a horizontal lubricating oil channel and a cross oil channel are formed in the straight shaft, an oil inlet pipeline connector is arranged at one end of the horizontal lubricating oil channel, and the lower portion of the straight shaft is hinged to a hinge middle body in the X direction through a hinge connecting rod; and the lower part of the hinged base is connected to a tester working platform through a lower connecting flange. The tension-compression fatigue test device for the engine cylinder body part can realize high-frequency loading, accurate test load, consistent sample failure modes, real-time monitoring and processing of sample states, high test efficiency, clean working environment and the like.