45results about How to "Consistent wind speed" patented technology

The invention discloses a drying unit of a nitrogen-source heat pump, comprising a drying box, a control system and an outdoor condenser, wherein the drying box comprises a box body, a heat pump chamber and a drying chamber; and the heat pump chamber and the drying chamber are arranged in the box body. The drying unit forms drying gas adjusting equipment with a nitrogen source, heat-pump equipment and a nitrogen device form a nitrogen heat-pump combining device so as to construct a closed circulation loop which adopts nitrogen as a medium to dry materials and effectively control the content of nitrogen in the drying chamber; and high-viscosity glass cement is used for sealing internal and external gaps of a drying room, a ventilating channel is modified, and a baffle, an arc-shaped air guide plate and an air uniformizing plate are added to enable the gas drying medium to be uniformly distributed in the drying chamber under certain air speed. The drying unit disclosed by the invention has the beneficial effects that the heat pump and a nitrogen combining device are used, the advantages of no pollution and low energy consumption of the heat pump can be fully utilized, the materials are dried under the condition of adopting nitrogen as a drying medium, the oxidation of the materials is prevented, the nutritional ingredients of the materials are retained, and the quality of dried products is improved.

The invention relates to a stability control method and device for the optical parameters of an optical fiber perform. The device comprises a deposition cavity, exhaust pipelines, exhaust pipe air valves, air valve opening controllers, air speed measurement rods, an air valve opening controller signal line, an air speed measurement rod signal line and an air speed detecting and processing unit. The exhaust pipelines are horizontally installed over the deposition cavity in the axial direction of the optical fiber perform, the air speed measurement rods are installed on the inner walls of the exhaust pipelines, the tail ends of the air speed measurement rods are installed at the centers of the exhaust pipelines, the exhaust pipe air valves are installed above the air speed measurement rods, the opening of the air valves is controlled by the external air valve opening controllers, temperature signals of the air speed measurement rods are connected into the air speed detecting and processing unit through the air speed measurement rod signal line, the air speed detecting and processing unit feeds instructions back to the air valve opening controllers through the air valve opening controller signal line, and then the air valve opening controllers control the opening of the exhaust pipe air valves so as to control the air speed.

The invention belongs to the technical field of machine room heat radiation and aims to solve the problems that a machine cabinet inside a machine room is poor in cooling effect, non-uniform in temperature reduction, and the like. To solve the problems, the invention provides a heat management device and method used for the machine room. At least one machine cabinet is arranged inside the machineroom; at least one air inlet corresponding to the machine cabinet is formed in the bottom of the machine room; the heat management device comprises at least one heat management unit which correspondsto and is assembled with the machine cabinet; air can be introduced into the machine cabinet from the air inlet through the heat management unit, and then the machine cabinet can be cooled. The heat management method comprises the following steps: acquiring the temperature of the machine cabinet; controlling the power of a draft device according to the temperature of the machine cabinet, thereby selectively cooling the machine cabinet. By adopting the heat management device, the machine cabinet can be specifically and precisely cooled; in addition, intelligent regulation and control can be implemented according to load states of different machine cabinets, the energy utilization efficiency can be improved, and the whole machine room can be at an appropriate ambient temperature.

The invention discloses a city tunnel ventilation test device and a manufacturing method thereof. The manufacturing method comprises the following steps: (1) determining the geometric scale(lambda 1 is more than 10 and less than 22) of a model tunnel and an actual model; (2) making a plurality of sections according to the geometric shape of the actual tunnel and splicing the sections into the model tunnel, wherein one wall surface of the model tunnel is made from a transparent material and the other inner wall surfaces of the model tunnel are mounted with abrasive paper; (3) mounting a jet nozzle, a back pressure pipe and a tracer gas tracking mechanism in the predetermined positions of the model tunnel. According to the manufacturing method, the ratio of the model tunnel to the actual tunnel is (1 to 22) to (1 to 10); in the ratio range, on one hand, the flowing of air in the model tunnel can satisfythe properties of a self-model region, and the model tunnel and the actual tunnel are similar in geometricproperty and flowing resistance, so that the model tunnel can accurately simulate the movement of ventilation air flow and a pollutant dispersion law in the actual tunnel; on the other hand, the test cost is relatively low, so that the test operation can beconveniently carried out.

The invention discloses a city tunnel ventilation testing device with a ramp. The city tunnel ventilation testing device comprises a main tunnel and a ramp, wherein the ramp is connected with the main tunnel by a flexible connecting pipe. As the main tunnel is connected with the ramp by the flexible connecting pipe, the included angle between the ramp and the main tunnel can be adjusted optionally at any time, so as to evaluate the effects of the angle of the ramp on the ventilation and pollution discharge of the main tunnel in the same channel; by adopting the device, the manufacturing cost of a model is saved, the manufacturing period is shortened, the evaluation error is reduced furthest, and the veracity of evaluation results is guaranteed.

To solve the problems that when cooling devices in the prior art are used, powder in materials leaks to cause air pollution and air coolers consume energy, the invention provides a cooling device for an annular cooling machine. The cooling device comprises one or more sealed air suction chambers which are arranged outside an outer cylinder body, each sealed air suction chamber comprises a side wall, an upper cover and a lower cover, all ventilation holes or the ventilation holes in the lower portion of the outer cylinder body are covered with annular sealed spaces formed by the upper covers, the lower covers, the side walls and the outer cylinder body, the side wall of each sealed air suction chamber is provided with one or more air suction openings, and the air suction openings are used for being communicated with a suction fan in a sealed mode. The whole or part of the cooling device uses air as a cold air source, and energy is saved; meanwhile, the intensity of external pressure of the annular cooling machine is less than the intensity of internal pressure of the annular cooling machine, namely negative pressure operation is conducted, and the problem that the powder in the materials leaks is solved effectively.

The invention provides a multi-row synthetic tow cooling device. The multi-row synthetic tow cooling device comprises a cooling box and an air supply device used for supplying cold air into the cooling box. A plurality of rows of air duct assemblies for tows to pass through are arranged on the cooling box, a perforated plate is arranged between the cooling box and the air supply device, and a plurality of vent holes are formed in the perforated plate. Cold air from the air supply device enters the exteriors of silk screen cylinders in the air duct assemblies through the vent holes and enters the interiors of the silk screen cylinders through the outer circumferences of the silk screen cylinders. Circulation space is formed in the outer circumferences of the silk screen cylinders, and the adjacent silk screen cylinders in the same row, the adjacent silk screen cylinders in different rows and different inner walls of the cooling box are communicated through the circulation space. By controlling the amount of the cold air entering different positions in the circulation space, the differential values between air pressures of the cold air at different positions in the circulation space and air pressures inside the silk screen cylinders are basically consistent.

The invention relates to a flow rectifier in a negative-pressure weighing chamber. The flow rectifier is installed between an air supplying box and a work area. The flow rectifier comprises a fixing frame. Flow rectifying plates are fixed to the fixing frame. A plurality of flow rectifying holes distributed in an arrayed mode are formed in the flow rectifying plates. At least two flow rectifying plates are arranged, a gap is formed between the flow rectifying plates, and the flow rectifying holes in the two adjacent flow rectifying plates are formed in a staggered mode. By means of the structure, the effects of reducing the air speed and rectifying flow can be achieved through the flow rectifying holes in the two flow rectifying plates, it is guaranteed that the air speed in the work area is consistent, operation is convenient, the structure is simple, and the production efficiency can be improved.

The invention discloses a sand and dust collecting device which comprises a collecting box, an air channel opening is formed in the top end of the collecting box, a lower ventilation pipe is arranged at the top end of the collecting box, the bottom end of the lower ventilation pipe communicates with the air channel opening, an upper ventilation pipe is detachably connected to the top end of the lower ventilation pipe, and a bearing is arranged at the top end of the upper ventilation pipe; the upper ventilation pipe and the lower ventilation pipe are each provided with a fixing pull wire, a settling chamber is arranged in the collecting box, an air duct opening corresponds to the settling chamber, and a sand and dust collecting mechanism is arranged in the collecting box and corresponds to the settling chamber. According to the invention, sand and dust data of more than PM2.5 can be collected, the blank that the existing sand collecting equipment can collect sand and cannot collect dust in the sand storm earth surface process is filled up, the defects of less sand and dust collection amount, short observation time and the like of TSP can be made up, and the sand and dust collection efficiency is improved.

The invention belongs to the technical field of air conditioner air speed control, and discloses an air conditioner, a swing air speed control method and system, a controller, equipment and a medium.The air conditioner swing air speed control system based on air speed attenuation comprises an execution mechanism, a main control module and a detection module. The execution mechanism comprises a fan and a swing motor. The main control module is used for outputting a control signal through a main controller according to the corresponding relation between an air speed and a motor speed. The detection module comprises a space distance detection unit, an air speed detection unit, a rotating speed detection unit and an angle detection unit. The spatial distance between an air outlet and a user at the current swing angle is measured in real time, the air speed of the air outlet is adjusted in a self-adaptive mode while air swing is conducted according to the air speed attenuation principle, it is achieved that the somatosensory air speed is kept within the comfortable range and cannot be obviously changed no matter whether the user is static or moving, and then the comfort degree of the swing mode is improved; and the air discharge strategy of the air conditioner is more user-friendly, and the comfort level of the user is improved.

The invention relates to a tobacco curing room. The tobacco curing room comprises a tobacco curing room and a hot air room arranged at the back end of the tobacco curing room body, wherein a thermal insulation door is arranged on the front end wall of the tobacco curing room body, a coal-fired combustion chamber is arranged at the inner bottom of the hot air room, a fan for blowing hot air towards the tobacco curing room body is arranged at the top of the hot air room, a main pipeline with the length equal to the inner length of the tobacco curing room is arranged in the middle of the inner top of the tobacco curing room body, one end of the main pipeline is in butt joint with a fan outlet, the other end is closed, a plurality of branch pipes are uniformly distributed on two sides of the main pipeline, one end of each branch pipe is communicated with the main pipeline, the other end of each branch pipe is closed, a plurality of vertical pipes are uniformly distributed at bottoms of the branch pipes, bottom ends of the vertical pipes are fixed on the ground, and top ends are communicated with the branch pipes; the vertical pipes are arranged in multiple rows in the front-and-back direction of the tobacco curing room body. The device is simple in structure and convenient to use.

The invention discloses an air duct assembly and refrigeration equipment. The air duct assembly includes an air duct shell and an air supply channel formed on the air duct shell, the air duct shell isprovided with an air inlet and a plurality of first air outlets communicating with the air supply channel, the plurality of first air outlets are arranged at intervals in a direction away from the air inlet, and the size of the first air outlets close to the air inlet is larger than the size of the first air outlets away from the air inlet. The refrigeration equipment comprises the air duct assembly. In the air duct assembly, even if the wind power is attenuated in the process of flowing cold air from the air inlet into the air supply channel to flow in the direction away from the air inlet,the wind speed at each first air outlet can be kept consistent due to the fact that the sizes of the first air outlets are gradually tightened in the airflow direction, so that the indoor temperaturedistribution in a refrigeration room of the refrigeration equipment is ensured to be uniform, and the user experience is improved.

The invention relates to an air controlling device used for gathering air and generating electricity. The air controlling device used for gathering the air and generating the electricity is characterized in that the air controlling device used for gathering the air and generating the electricity comprises a cylinder body, an air inlet and an air outlet are respectively arranged at the two ends of the cylinder body, an opening is formed in the approximately middle portion of one side wall of the cylinder body, transverse sliding grooves are both formed in corresponding positions of the inner side faces of the cylinder walls on two sides of one side, close to the air outlet, of the opening, a sliding plate is arranged between the two transverse sliding grooves and is connected with a driving mechanism. Rotary sliding blocks are both arranged on two edges of one edge close to the air inlet, of the opening, and a wind board is arranged between the two rotary sliding blocks. The inner side of the wind board and the inner side of the sliding plate are hinged together, a connecting plate is arranged on the inner side of the wind board, one side of the connecting plate is hinged on the cylinder wall between the air inlet and the opening, and the side, opposite to the hinged side, of the connecting plate is arranged on the inner side face of the wind board in a free mode. By the adoption of the air controlling device used for gathering the air and generating the electricity, the use ratio of wind energy can be greatly improved, and the air controlling device used for gathering the air and generating the electricity is suitable for adjusting air quantity of the air inlet of a wind driven generator.

The invention discloses a grain drying device capable of uniformly transporting air. The grain drying device comprises a drying bin, wherein a heat cycle pipeline of an S-shaped structure is fixedly mounted in an inner cavity of the drying bin; the bottom of the right side of the drying bin is fixedly equipped with a hot air blower; the hot air blower is fixedly connected to the tail end of the heat cycle pipeline of the S-shaped structure; the front end of the heat cycle pipeline of the S-shaped structure penetrates through the side wall of the left side of the drying bin and is fixedly connected with an air outlet; the top of the drying bin is fixedly equipped with a material barrel, and an unloading tube is fixedly connected between the bottom of the drying bin and the top side of the front end of the heat cycle pipeline of the S-shaped structure; and a discharge hole is fixedly mounted at the bottom side of the tail end of the heat cycle pipeline of the S-shaped structure. The grain drying device belongs to the grain processing field, achieves the material separating effect, drives grains to loosely and uniformly pass through the heat cycle pipeline of the S-shaped structure, can guarantee that air speed is basically kept consistent while air is conveyed to the front end of the heat cycle pipeline of the S-shaped structure from the tail end of the heat cycle pipeline of theS-shaped structure, and has the characteristics of being high in drying efficiency, and saving energy.

The invention provides a multi-row synthetic tow cooling system which comprises a spinneret device, a cooling box and an air supplying device used for supplying cold air into the cooling box. Multiple rows of air tube assemblies used for passing of tows are arranged on the cooling box, a multi-hole plate is arranged between the cooling box and the air supplying device, and a plurality of ventilation holes are formed in the multi-hole plate. The cold air from the air supplying device enters the outsides of silk screen tubes in the air tube assemblies through the ventilation holes and enters the insides of the silk screen tubes from the outer circumferences of the silk screen tubes, polymer melt trickles jetted by the spinneret device is cooled to be filaments, circulation spaces formed at the outer circumferences of the silk screen tubes are communicated with the same rows of adjacent silk screen tubes, the different rows of adjacent silk screen tubes and different inner walls of the cooling box, and differential values between air pressure of the cold air at different positions in the circulation space and air pressure of the insides of the silk screen tubes are basically accordant through control over the cold air amount at the different positions in the circulation space.

The invention discloses a storage battery pole plate and a drying process and device thereof. The drying process comprises the following steps of curing a green pole plate coated with a lead plaster and then entering a drying stage; adopting intermittent dehumidification at the drying stage, and setting the humidity control upper limit during dehumidification. By means of the moisture evaporationof the polar plate, the wet air is exhausted when the humidity reaches the upper limit, the dry air is absorbed at the same time, then the dehumidification and air inlet functions are closed for indoor air circulation to realize the internal air flowing, so that the temperature and humidity of the internal air are consistent; after the moisture in the lead plaster diffuses into the circulating air, and when the humidity reaches the humidity upper limit again, the dehumidification and air inlet operations are carried out. Along with the gradual drying of the polar plate, the circulating air exhaust is reduced gradually in stages to control the humidity upper limit, so that the polar plate is dried. Compared with the prior art of carrying out the dehumidification and air inlet operations allthe time, the energy is saved, the consumption is reduced, and the surface of the pole plate can be prevented from cracking due to too fast drying. Through the circulation operation, the purpose of drying the polar plate is finally achieved, and the energy consumption can be saved by 10-25% of the energy consumption of a total curing cycle.

The invention provides an air deflector assembly and an air conditioning device. The air deflector assembly comprises a first air guide plate, a second air guide plate and a support adjusting device, the first air guide plate comprises a first plate body extending in the first direction and a first mounting part fixed to the end part of the first plate body, the second air guide plate comprises a second plate body and a second mounting part fixed at the end part of the second plate body, the support adjusting device comprises a supporting part and an actuating part, and the first mounting part and the second mounting part are mounted on the supporting part and are in driving connection with the actuating part. The air deflector assembly has an equal interval adjusting state, the first mounting part and the second mounting part are eccentrically arranged relative to a rotating axis in the first direction in the equal interval adjusting state, and the support adjusting device is configured to drive the first mounting part and the second mounting part to rotate around the rotating axis so as to adjust the rotating angle of the first plate body and the rotating angle of the second plate body and enable the distance between the first plate body and the second plate body to be equal before and after adjustment. The air deflector assembly can improve the comfort level of a user.