35results about How to "Large radiating surface" patented technology

The invention thus relates to a radiation module incorporating a support, at least one heating and/or heat conducting element and a temperature exchanging element made by extrusion and constituted by a single-piece base with an internal face incorporating at least one means to integrate the heating and/or heat conducting element and an external face incorporating radiation fins wherein the module incorporate a diffuser receiving infrared radiation from the temperature exchanging element, said diffuser enabling infrared radiation to be emitted of a wavelength that is less than that of the radiation received.

The invention provides a miniaturized dual-frequency nested antenna. A through hole is formed in the middle part of a low-frequency dielectric substrate and thus a low-frequency antenna has an annularhollow structure and a high-frequency antenna is arranged in the annular structure, so that the positions of the low-frequency antenna and the high-frequency antenna are overlapped partially and thusthe horizontal dimension is reduced. Moreover, vertical side plates are arranged around the low-frequency dielectric substrate and the surface of the low-frequency dielectric substrate is covered bya horizontal radiation metal patch, so that the horizontal dimension of the low-frequency antenna is reduced and the radiation surface of the low-frequency antenna is increased. Furthermore, verticalradiation metal patches with L-shaped grooves are arranged at the peripheral directions of the side plates and the L-shaped grooves play a role of optimizing the bandwidth. Therefore, the wireless signal transceiving system and the miniaturized dual-frequency nested antenna have the following beneficial effects: the frequency band requirement is met and the size is reduced effectively.

The invention relates to the technical field of generation and transfer of ultrasonic vibration and particularly relates to a near sound field ultrasonic reactor which efficiently uses ultrasonic energies. The near sound field ultrasonic reactor comprises an ultrasonic vibration tube, an ultrasonic internal reflection tube, an ultrasonic external reflection tube, an ultrasonic amplitude transformer, a flange connected with the ultrasonic amplitude transformer, an ultrasonic amplitude transformer flange, a fixed amplitude transformer sleeve, a fixed internal reflection tube rib, an internal reflection tube dividing conehead, an external reflection tube flange and the like. The ultrasonic reactor provided by the utility model is the near sound field ultrasonic reactor which is simple in structure, free from maintenance in operation, high in utilization ratio of ultrasonic energy, large in ultrasonic radiating area, uniform in ultrasonic sound intensity, low in power consumption and energy-saving and environmentally friendly and efficiently uses ultrasonic energies. The near sound field ultrasonic reactor provided by the utility model not only effectively utilizes radiating energies on the internal and external faces of the ultrasonic vibrating tube, but also effectively utilizes radiating energies reflected from inner and outer sides, so that the near sound field ultrasonic reactor is suitable for industrial flows in continuous production. A common plate type ultrasonic reactor is not as good as the near sound field ultrasonic reactor.

The invention discloses a waste gasification melting combustion system. The system is used for treating garbage, is higher in garbage conveying capacity, is higher in garbage treatment quantity, can reduce the heat loss and improve the heat exchange efficiency, is higher in heat recovery efficiency, and can effectively reduce the pollutant discharge. The waste gasification melting combustion system comprises a waste gasification melting furnace and a boiler system; the waste gasification melting furnace includes a furnace frame, and a feeding bin, a gasification furnace and a melting curing system arranged on the furnace frame in the feeding direction in sequence; the melting curing system includes a melting hearth, a laminar channel, a water cooling crushing system and a water seal deslagging system arranged in sequence in the feeding direction; a high-temperature combustor and a gasifying agent inlet are arranged on the side wall of the melting hearth; the water cooling crushing system includes a water cooling system, a water cooling cavity and a glass body crusher; and a discharge end of the water seal deslagging system is connected with a glass body slag discharge port.

The invention relates to a medical diagnostic X-rayapparatus (1) comprising an X-raysource (13), a hollow carrier (5) to which the X-raysource is connected, and a cooling mechanism (3) provided with a cooling means to cool the X-raysource (13) during use of the X-rayapparatus (1). The cooling means is in direct thermal contact with the carrier (5), thus providing an efficient cooling mechanism (3) for the X-raysource (13).

The invention provides an ultrasonic treatment head configured to act on eyes. The ultrasonic treatment head comprises two mutually connected ultrasonic transducers configured to act on a left eye and a right eye respectively, wherein the ultrasonic transducers are of a symmetrical structure. Each ultrasonic transducer comprises a coupling body tightly attached to the periphery of an eyeball, a backing matched with the coupling body, and a piezoelectric ceramic sheet. The front surface of the coupling body is provided with a continuous annular protrusion configured to be attached the eye socket of an eye up and down. The backing is provided with a groove for accommodating the piezoelectric ceramic sheet. The back surface of the coupling body and one side of the backing provided with the groove are attached together so as to package the piezoelectric ceramic sheet inside the groove. The electrodes of the piezoelectric ceramic sheets of the two ultrasonic transducers for left and right eyes are connected with each other or are separately led out. The annular protrusion can be a continuous ring, or connected or separate columns arranged in an annular form. According to the invention, the ultrasonic treatment head can be tightly attached to the eye sockets of eyes, while the eyeballs of the eyes are not pressed at all. Low-frequency ultrasonic waves can penetrate the eye sockets and soft tissues around the eye sockets to act on the muscle groups of the eyes. Therefore, the treatment on the muscle groups of the eyes can be realized.

The invention relates to a piston (5) for a printhead (1) of a 3D printer, particularly a metal printer, comprising a piston rod (17) and a ram (18), the ram (18) having a discharge side (19) that hasa convex or tapering surface (39). The invention also relates to a printhead (1) for a 3D printer, particularly a metal printer, comprising a housing (3), a device (28) for supplying a metal (14), areservoir (7, 27) for a liquid phase (8) of the metal (14), a nozzle device (2) comprising a guide sleeve (11) and a nozzle plate (9), and a piston (5) according to one of the preceding claims, the ram (18), the guide sleeve (11) and the nozzle plate (9) forming a displacement chamber (21), and the ram (18) and the guide sleeve (11) forming at least one area (40) for conducting the liquid phase (8) between the reservoir (27) and the displacement chamber (21).

The invention discloses a multifunctional moxibustion instrument which comprises a shell, a steel wire net surface arranged in the shell, moxa holes arranged at the top of the shell, a heat deflector arranged at the rear part of the shell and a three-dimensional bracket connected with the moxibustion instrument. The steel wire net surface has 60-100 meshes and an external arc surface, the number of the moxa holes is from 1 to 8, the distances among the moxa holes range from 2cm to 8cm, the heat deflector and the shell top can be connected in a hinge mode, and the three-dimensional bracket is connected with the moxibustion instrument by a connecting shaft arranged at the rear side of the moxibustion instrument. The moxibustion instrument has great radiation area and simple and convenient operation, can effectively act on various parts of a body, is convenient to adjust the distance between the moxibustion instrument and the body and has less heat loss and wide application range.

The invention discloses an improved-type desulfurization and denitrification spray gun. The improved-type desulfurization and denitrification spray gun comprises a spray gun inner pipe and a spry gun sleeve, wherein a joint is welded at one end of the spray gun inner pipe, and the other end of the spray gun inner pipe is welded with a spray gun head; the outer wall of the spray gun inner pipe forms a threaded region, and one side of the threaded region is provided with a stop ring; the spray gun sleeve is in threaded connection with the threaded region; the spray gun sleeve is provided with an inlet pipe; the inlet pipe is provided with a cooling pipe; an end socket is arranged between one end of the spray gun sleeve and the stop ring, and the other end of the spray gun sleeve is provided with a trumpet-shaped flaring; the inner wall of the spray gun sleeve is provided with 2-3 spirally arranged flow guide elements at intervals. According to the invention, the desulfurization and denitrification operation efficiency is improved, and meanwhile the service life is prolonged.

The invention relates to the technical field of garden engineering, and discloses a tree lifting device for garden engineering. The tree lifting device comprises a base, wherein a first gear is rotatably connected to the bottom of the inner wall of the base, one side of the first gear is meshed with a second gear, and a steering motor is in bolted connection to the right side of the top of the base; the output end of the steering motor is bolted with the top of the second gear; by designing the base, the first gear, the second gear, the steering motor and a supporting plate which are convenient to use, the lifting direction can be conveniently changed according to needs, traditional vertical lifting is avoided, the radiation surface of the lifting range is enlarged, and the use burden is greatly relieved; and by designing a winding mechanism, a pulley, a lifting rope, a fixing frame and arc-shaped clamping plates, which are convenient to use, materials can be conveniently fixed and lifted according to needs, loosening and falling caused by unfirm binding are avoided, the lifting safety is greatly improved, and the lifting device is worthy of popularization and application.

The invention relates to a novel low-nitrogen-emission cold flame combustion integrated steam boiler which comprises a draught fan, an air preheater, a gas valve set, a gas distribution pipe, an air flue, an air distribution chamber, water cooling fire grates, hearths, convection areas, a flue, an energy saver, a steam pocket, a descending pipe, a descending communication pipe and a water level controller. A heating surface adopts a standard modular design and consists of two groups of membrane wall modules and a plurality of groups of fire grate convection area modules; the capacity of the boiler can be randomly combined and adjusted through the number of the fire grate convection area modules; each fire grate convection area module is composed of a module leading-in pipe, a module lowercollecting box, a fire grate finned pipe, a convection area light pipe, a convection area finned pipe, a module upper collecting box and a module leading-out pipe; each module can be divided into three functional areas, namely a water-cooling fire grate, a hearth and a convection area; the water-cooling fire grates are composed of porous ceramics and finned pipes; and mixed gas of air and naturalgas evenly flows to spiral fin areas on the finned pipes through small holes in the porous ceramics, and enters the hearths so as to be combusted after being preheated along channels among spiral fins.

The invention provides a megahertz-level wide-beam high-power transmission-reception integrated acoustic array. The acoustic array is characterized in that the acoustic array comprises an emission array, a reception array, a signal transmission line and a packaging body, the emission array receives acoustic wave signals from the signal transmission line and emits megahertz-level, wide-beam, and high-power very high frequency acoustic wave signals to a water target, the reception array is used for receiving reflection echoes of the water target and sending reflection echo signals to the signal transmission line, a plurality of emission transducer plates form an emission group, a plurality of same emission groups are distributed side by side at intervals to form the emission array, the reception array is formed by a plurality of single reception transducer plates, the number of the reception transducer plates is consistent with the number of the emission transducer plates of one emission group, the signals between the emission transducer plates and between the emission groups are connected in a parallel manner, and the signals between the single reception transducer plates are connected in a parallel manner. According to the acoustic array, the functions are composite, the structure is compact, megahertz-level acoustic waves can be emitted, and the reflection echoes of the water target can be received.

The invention discloses an efficient iron-containing waste acid treatment structure. The device comprises a tank body; a stirring mechanism is mounted at the bottom of the tank body; aeration holes are uniformly distributed in the inner side wall of the tank body; the stirring mechanism comprises a motor positioned below the tank body, a shaft body output by the motor, and blades driven by the shaft body; the shaft body extends into the tank body from the bottom of the tank body in a sealed mode; the blades are located in the tank body; a waste acid inlet and a waste acid outlet are formed inthe top and the bottom of the tank body respectively; an interlayer is formed on the side wall of the tank body, and annular heating bodies are evenly distributed in the interlayer. Through the annular heating bodies and a thermal insulation material, the device is effectively subjected to heating operation and heat preservation operation, the synthesis efficiency is high, the process is simple, the space utilization rate is high, the cost is reduced, manpower and labor are saved, the aeration mechanism is arranged on the side wall surface of the whole reaction kettle, the radiation surface islarge, and the reaction speed can be increased.