30results about How to "Effective convection" patented technology

The invention relates to a variable-air-volume intelligent airflow regulating and controlling system of a data machine room. The system comprises a mobile phone with an alarming notification function, a remote monitor computer, an intelligent central controller, an A concentrator, a B concentrator, a plurality of precise air conditioners, a plurality of machine cabinets, a plurality of variable-air-volume airflow induction units and variable-air-volume intelligent blower, wherein a plurality of the precise air conditioners are electrically connected with the B concentrator; the mobile phone with the alarming notification function and the remote monitor computer are connected with the intelligent central controller through communication network; a plurality of the precise air conditioners and a plurality of the machine cabinets are distributed in a data center machine room through a cold channel and a hot channel; the air inlet of the machine cabinet is provided with a variable-air-volume intelligent blower; or the radiation back board of the machine is provided with a variable-air-volume airflow induction unit; the variable-air-volume intelligent blowers and the variable-air-volume airflow induction units are connected with the A concentrator through signal lines; and the A concentrator and the B concentrator are electrically connected with the intelligent central controller. According to the invention, the data machine room reduces the temperature of equipment such as computers and the like; and temperature reducing effect is remarkable so as to achieve effect satisfied by users.

A rotor segment of an electric machine may include a rotor shaft and a laminated core, which is arranged on the rotor shaft in such a way that a gap dimensioned sufficiently large in the radial direction for the passage of a cooling medium is produced between an outer surface of a hollow cylinder shell and an inner surface of the laminated core. The rotor segment may further include two pressure elements that are held on the rotor shaft in a stationary manner such that the pressure elements axially clamp the laminated core. Further, at least one of the pressure elements is designed as a holding segment allowing cooling medium to pass through.

The invention relates to a method for driving the molten metal to flow three-dimensionally and periodically based on a permanent spiral magnetic field and belongs to the technical field of metallurgical industry. A spiral magnetic field body is manufactured and composed of a plurality of permanent magnet units which are coaxially mounted and are rings, each of the permanent magnet units is composed of a plurality of permanent magnets and a support frame, the plurality of the permanent magnets are evenly embedded in the support frames, magnetization directions of adjacent permanent magnets are opposite, the permanent magnets of adjacent permanent magnet units are staggered at a certain horizontal angle beta successively along an anticlockwise or a clockwise direction, and a rise angle of a composed spiral magnetic field is alpha, so that the molten metal can be placed in a cavity of the spiral magnetic field, the spiral magnetic field rotates at a certain angular speed, rotation directions change alternatively at a certain period, and the molten metal is driven to flow three-dimensionally and periodically. According to the method, various defects in molten metal solidification can be reduced effectively, and the method is applicable in improving the metal solidification process.

An air cleaning device using water as a filter comprises a water tank, a water pump, a pressure equalizer and air-inhale tubes. The water tank includes an accommodation space for containing water, air inlets and air outlets. A cover hoods the water tank and has a water storage tank and air inlets. The water pump is disposed inside the water tank and connected with the pressure equalizer. Jet pipes of the pressure equalizer respectively interconnect with the air inlets through the air-inhale tubes. The water pump sucks the water in the accommodation space. Through the air-inhale tubes, the jet pipes inhale air in a jet fashion from exterior of the air inlets disposed in multiple directions. The air cleaning device can filter out the impurities in the air and fast clean the air of a large space. The present invention uses water as the filter and favors environmental protection.

The invention discloses a shoe with a power airbag. The shoe comprises a sole and an upper. A shoe ventilation channel formed by mutually communicating a ventilation groove, a channel groove and an airbag is arranged at the corresponding position of the shoe, or a shoe ventilation channel formed by mutually communicating a ventilation groove, an outlet tube and the airbag is arranged at the corresponding position of the shoe, and extension or expansion power is supplied to the airbag, so that the air inside the shoe more effectively convects with the outside of the shoe, and fresh air outside the shoe easily flows into the shoe, and thus the intensity and effect of convection of air inside and outside the shoe are improved. Meanwhile, a check valve is arranged at the preset position of the ventilation channel, and the flow direction of a gas in the shoe ventilation channel is regulated by the check valve, so that the gas in the ventilation channel flows along the preset direction.

The invention discloses a high-efficiency compound radiator, comprising an upper header and a lower header; the upper header and the lower header are connected by means of a heat-dissipating core tube; a heat-dissipating main body tube sleeves the heat-dissipating core tube; an upper cover is arranged on the upper header; a lower cover open in a lower end thereof is arranged outside the heat-dissipating main body tube; a lower end portion of the upper cover is connected with an upper end portion of the lower cover in such a manner that hermetical connection is formed at a connection part thereof; a heat source inlet at one end of the upper header is connected with a heat water inlet, and a vent valve is arranged at the other end of the upper header; a water return port formed in a part, on one side of the vent valve, of the lower header is connected with a water return pipeline; the heat-dissipating core tube is an elliptical core tube of which the section perpendicular to an axial direction is elliptical, and the heat-dissipating main body tube is an elliptical heat-dissipating tube matched with the elliptical heat-dissipating core tube. The high-efficiency compound radiator is beautiful in shape, and convenient to mount, demount and repair; due to the combination of the matching elliptical core tube and elliptical heat-dissipating tube, the heat cycle efficiency is high, the heat utilization rate is increased, and the purpose of quick and balanced heat dissipation is achieved.

The invention discloses a light emitting diode (LED) fluorescent tube which comprises a power supply, a PC outer cover, a PCB, a radiator and plugs with long slopes. The inner wall of the PC cover is provided with an expansion component, and the outer wall of the PC cover is sleeved with a glass pipe. The radiator comprises a PCB mounting face and a light receiving face. Cooling teeth are mounted on the back of the PCB mounting face. The outer surface of the radiator is provided with lower fins. The surfaces of the plugs are provided with air convection holes symmetrically distributed up and down. The thickness of the fins is no larger than 10 mm. According to the LED fluorescent tube, dust cannot be accumulated on the surface of the radiator, effective air convection is formed, the service life of the product is long, and the production efficiency is high.

The invention relates to a variable-air-volume intelligent airflow regulating and controlling system of a data machine room. The system comprises a mobile phone with an alarming notification function, a remote monitor computer, an intelligent central controller, an A concentrator, a B concentrator, a plurality of precise air conditioners, a plurality of machine cabinets, a plurality of variable-air-volume airflow induction units and variable-air-volume intelligent blower, wherein a plurality of the precise air conditioners are electrically connected with the B concentrator; the mobile phone with the alarming notification function and the remote monitor computer are connected with the intelligent central controller through communication network; a plurality of the precise air conditioners and a plurality of the machine cabinets are distributed in a data center machine room through a cold channel and a hot channel; the air inlet of the machine cabinet is provided with a variable-air-volume intelligent blower; or the radiation back board of the machine is provided with a variable-air-volume airflow induction unit; the variable-air-volume intelligent blowers and the variable-air-volume airflow induction units are connected with the A concentrator through signal lines; and the A concentrator and the B concentrator are electrically connected with the intelligent central controller. According to the invention, the data machine room reduces the temperature of equipment such as computers and the like; and temperature reducing effect is remarkable so as to achieve effect satisfied by users.

The invention provides a light motor which comprises a stator, wherein a silicon steel sheet group of the stator is provided with a center hole for sleeving an inner bushing, and the inner bushing is provided with a shaft hole for coupling a motor shaft, thereby lowering the material cost and reducing the weight. A rotor is sleeved on the stator and is annularly provided with a plurality of magnets, and a left cover and a right cover are respectively positioned at two sides of the stator and rotor. Thus, after the current flows through a coil group of the stator, the electromagnetic force canbe generated to drive the rotor to rotate; and because a left inner cavity is formed at the left side of the inner bushing, a right inner cavity is formed at the right side of the inner bushing and the left inner cavity and the right inner cavity are mutually communicated, the heat can be dissipated effectively, thereby prolonging the service life of the motor.

The invention discloses an LED fluorescent lamp tube, which comprises a power supply, a PC cover, a PCB board, a radiator and a plug with a long slope. The inner wall of the PC cover is provided with an expansion piece, and the outer wall is covered with a glass tube. The radiator includes a PCB mounting surface and a light-receiving surface, the back of the PCB mounting surface is equipped with cooling teeth, the outer surface of the radiator is provided with lower fins; the surface of the plug is provided with air convection holes symmetrically distributed up and down, The thickness of the lower fins is not greater than 10mm. The surface of the radiator of the invention does not accumulate dust, the air forms effective convection, the product has a long service life and high production efficiency.

The invention relates to a preparation method for a solid-phase micro-extraction fiber bundle, and relates to preparation of the fiber bundle. The preparation method comprises the steps of (1) preparation of single SPME (solid-phase micro-extraction) fibers based on an integral material: mixing a monomer, a crosslinking agent, a pore-forming agent and an initiator to prepare a uniform solution, then injecting the uniform solution into a capillary which is 5-20cm long and of which the inner diameter is 0.2-0.8mm and the wall thickness is 0.05-0.2mm, sealing two ends of the capillary, performing polymerization, removing a section, which is 1-3cm long, of the capillary, putting the integral material fiber into a soxhlet extractor, performing extraction through a solvent, or putting the fiber into the solvent, and soaking the fiber until no impurity is detected from the liquid so as to obtain the single SPME fibers based on the integral material; (2) preparation of the solid-phase micro-extraction fiber bundle: combining 2-6 of the single SPME fibers based on the integral material on the capillary to obtain the solid-phase micro-extraction fiber bundle. The preparation method is simple, high in extraction capacity, high in extraction speed, low in cost and easy to operate.

The invention discloses a high-efficiency compound radiator, comprising an upper header and a lower header; the upper header and the lower header are connected by means of a heat-dissipating core tube; a heat-dissipating main body tube sleeves the heat-dissipating core tube; an upper cover is arranged on the upper header; a lower cover open in a lower end thereof is arranged outside the heat-dissipating main body tube; a lower end portion of the upper cover is connected with an upper end portion of the lower cover in such a manner that hermetical connection is formed at a connection part thereof; a heat source inlet at one end of the upper header is connected with a heat water inlet, and a vent valve is arranged at the other end of the upper header; a water return port formed in a part, on one side of the vent valve, of the lower header is connected with a water return pipeline; the heat-dissipating core tube is an elliptical core tube of which the section perpendicular to an axial direction is elliptical, and the heat-dissipating main body tube is an elliptical heat-dissipating tube matched with the elliptical heat-dissipating core tube. The high-efficiency compound radiator is beautiful in shape, and convenient to mount, demount and repair; due to the combination of the matching elliptical core tube and elliptical heat-dissipating tube, the heat cycle efficiency is high, the heat utilization rate is increased, and the purpose of quick and balanced heat dissipation is achieved.

The invention discloses an outdoor power distribution cabinet having an intelligent temperature control function. The outdoor power distribution cabinet includes a negative temperature coefficient temperature-sensitive device, a solar power generation system, a refrigerating machine, and a power distribution cabinet body, the negative temperature coefficient temperature-sensitive device is arranged on the inner wall of the power distribution cabinet body, the negative temperature coefficient temperature-sensitive device, the solar power generation system, and the refrigerating machine are successively and serially connected, the solar power generation system includes a solar generating board which is inclinedly arranged at the upper part of the casing of the power distribution cabinet body, the refrigerating machine is arranged between the solar generating board and the power distribution cabinet body, a cold air duct is connected with the refrigerating machine and extends to the top of inner space of the power distribution cabinet body, and the cold air duct of the inner space of the power distribution cabinet body is provided with a cold air window which opens downwards. The outdoor power distribution cabinet can intelligently control temperature to prevent electric power device from being damaged because over-high temperature; a cooling deice is arranged at the bottom of the side wall of the power distribution cabinet body to effectively reduce the inside temperature of the power distribution cabinet, and an induced draught fan is arranged in the cold air window to prevent local temperature from being too low.

The invention provides a light motor which comprises a stator, wherein a silicon steel sheet group of the stator is provided with a center hole for sleeving an inner bushing, and the inner bushing is provided with a shaft hole for coupling a motor shaft, thereby lowering the material cost and reducing the weight. A rotor is sleeved on the stator and is annularly provided with a plurality of magnets, and a left cover and a right cover are respectively positioned at two sides of the stator and rotor. Thus, after the current flows through a coil group of the stator, the electromagnetic force can be generated to drive the rotor to rotate; and because a left inner cavity is formed at the left side of the inner bushing, a right inner cavity is formed at the right side of the inner bushing and the left inner cavity and the right inner cavity are mutually communicated, the heat can be dissipated effectively, thereby prolonging the service life of the motor.

An LED surface light source spotlight easy to cool, comprising an aluminum substrate. Several LED light beads are distributed on the aluminum substrate, and a mounting frame is connected to the aluminum substrate by means of a connecting member; the mounting frame consists of a mounting plate and at least two connecting plates arranged on the mounting plate at intervals in the length direction, and the connecting plates are hingedly connected to the connecting member. The spotlight has a compact structure and a good cooling effect, and can be for outdoor illumination and advertisement illumination.