35results about How to "Basic structure is simple" patented technology

The invention discloses an air-assisted electro-coagulation algae water separation device and a using method thereof, and belongs to the technical field of sewage treatment. The device comprises a tower, a main shaft, concentric cylinder electrode plates, a mechanical transmission device, a connecting rod mechanism, a floating ball device, an air distributor, a pulse air feeding device and the like. The device takes even pairs of concentric cylinders as cathode and anode for electro-coagulation which are distributed in a staggering way; the surface area of the electrode plate is large, the electro-coagulation efficiency is high, and the adsorption precipitation of microalgae on the surface of the electrode can be effectively prevented. The flowing direction of the liquid in the tower is opposite to the settlement direction of the microalgae so as to form cross flow to enhance the mass transfer and improve the electro-coagulation efficiency. The floating ball device can keep the moving components such as the main shaft in the tower, the concentric cylindrical electrode plates of the cathode and anode and the like in a floating state so as to reduce the running load of a transmission motor. The device of the invention can realize continuous operation of electro-coagulation and air floatation collection of the microalgae; and the basic structure is easy to amplify and implement so as to meet the requirements of large-scale industrial continuous running.

The invention relates to a self-governing underwater vehicle and particularly relates to a low-noise separation mechanism for separating an appendage of a self-governing underwater vehicle. The low-noise separation mechanism comprises a machine body, a hot working action mechanism, a connecting buckle, a torsion spring pin shaft, a connecting clamping tongue, an upper wedge block and a lower wedge block, wherein the torsion spring pin shaft is mounted on the machine body, the connecting buckle is hinged to the torsion spring pin shaft, one end of the connecting buckle is hung on one end of the connecting clamping tongue, the other end of the connecting clamping tongue is connected with the appendage through connecting fixing bands, the other end of the connecting buckle is connected with the upper wedge block, and the lower wedge block is located below the upper wedge block; the hot working action mechanism is mounted on the machine body, and the output end of the hot working action mechanism is connected with the lower wedge block to drive the lower wedge block to move back and forth relative to the upper wedge block; and the machine body is connected with a main body of the self-governing underwater vehicle through the connecting fixing bands. According to the low-noise separation mechanism provided by the invention, the hot working action mechanism is small in explosive payload and cannot be broken, so that the fast separation of the appendage and the self-governing underwater vehicle can be realized, and meanwhile, separation noises are greatly lowered.

The invention discloses a simple single crystal furnace and a control method thereof. The simple single crystal furnace comprises a vertical tube furnace and a movement control system, wherein the vertical tube furnace comprises heating components, quartz taper tubes, quartz supports and a vacuum pump; holes for accommodating the quartz taper tubes are formed in the quartz supports, the quartz taper tubes penetrate through the holes in the quartz supports, the vacuum pump is connected with a flange at one end of a furnace tube, and a flange at the other end is connected with other protective gases (containing argon, nitrogen and the like), so that the inside environment of the furnace tube keeps an inert environment (in necessity) and the outside environments of the quartz taper tubes keep the inert environment (in necessity). The provided simple single crystal furnace is low in manufacture cost, occupies a small land area and is simple to operate. The single crystal growth principle is the Bridgeman method. Multiple kinds of large single crystals have been produced by means of the simple single crystal furnace, and the simple single crystal furnace has the effect equivalent to or even superior to the growth effect of a professional single crystal furnace.

The invention discloses a controllable slope type microalgae cultivation system and a microalgae cultivation method thereof. The system mainly comprises a microalgae pretreatment tank, a controllable slope type self-flow automatic temperature raising microalgae cultivation device on which a heat absorption coating is coated, and a microalgae liquid collection and aftertreatment tank; the controllable slope type self-flow automatic temperature raising microalgae cultivation device is arranged on an inclined surface with the slope ratio of 1 to 5 percent; the heat absorption coating is coated on the inner walls of straight pipes and U-shaped pipes, which are near one side of the inclined surface; the straight pipes and the U-shaped pipes form the controllable slope type self-flow automatic temperature raising microalgae cultivation device; each U-shaped pipe is provided with a carbon dioxide air inlet; two ends of each straight pipe are provided with valves; each straight pipe is also provided with an oxygen discharging hole; the tail end of the controllable slope type self-flow automatic temperature raising microalgae cultivation device is provided with a flow controller; primary microalgae liquid in the pretreatment tank is led into the controllable slope type self-flow automatic temperature raising microalgae cultivation device, so microalgae is collected and cultivated for 12 to 24 hours periodically; the system can cultivate the microalgae on scales, has a simple basic structure, is easy to implement, and can meet the industrial cultivation requirement of the microalgae.

The invention discloses a universal transmission mechanism and an all-directional running machine driven by the universal transmission mechanism and belongs to the field of transmission mechanisms. The universal transmission mechanism comprises a supporting frame, and a plurality of mounting holes formed in the supporting frame, wherein a plurality of supporting units are arranged on the supporting frame; each supporting unit is at least composed of three supporting bodies; the supporting bodies penetrate into the mounting holes; each two supporting bodies are connected by a speed linkage mechanism; each supporting body is connected with a direction mechanism for controlling a power transmission direction in a matching manner; the direction mechanisms are connected through a direction linkage mechanism. The universal transmission mechanism provided by the invention has a simple structure and is flexible and convenient to assemble, and the size of the whole device can be randomly adjusted according to the size of the environment; the universal transmission mechanism has very strong practicability and can be used for simply and conveniently controlling a transmission speed.

The invention relates to an axial positioning structure. The axial positioning structure comprises an annular slot which is arranged on an outer stretching end of a shaft, two half bushing brushes which are embedded in the annular slot, a sleeve ring which is sleeved outside the two half shaft bushings and an elastic retainer ring, wherein a retainer ring slot which is arranged outside and a limiting step which is arranged inside are arranged on outer circumferential surfaces of the two half shaft bushings; the elastic retainer ring is blocked in a retainer ring slot; and the sleeve ring is arranged between the elastic retainer ring and the limiting step. The axial positioning device solves the technical problem that the current axial positioning structure is difficult to mount and dismount, and a locking gasket is easily damaged in a dismounting process, has a small integral axial dimension, a large bearing axial force, a broad application range, high reliability, and is convenient to mount, change and maintain. The axial positioning device is very convenient to mount, change and maintain as the base structure is simple.

The invention belongs to the field of submarine hull structure design, and relates to a submarine non-pressure hull pyramid lattice sandwich anti-impact structure and a design method thereof. The invention provides a structure and a design method for applying a pyramid lattice sandwich anti-impact structure to a weak area of a non-pressure shell. The method improves the anti-knock performance of the non-pressure shell by replacing a conventional non-pressure shell with a pyramid lattice sandwich shell plate structure without reducing the structural performance of the original non-pressure shell.

The invention relates to an automatic reset leak-protection air injection system which is capable of settling the technical problems that the pumping speed of the vacuumizing devices of existing common centrifugal pumps is very slow, the size is big, the reliability is poor, the service life is short, the application scope is limited, etc. The system comprises an air inlet pipe through which the compressed air can pass, an exhaust pipe communicating with the exterior environment, a hollow basal body arranged between the air inlet pipe and the exhaust pipe, a negative-pressure device and an automatic reset device arranged inside the basal body and as well as an air inducting device. The utility model has the advantages of small overall radial size, broad application scope of the automatic reset leak-protection air injection system, high reliability, long service life, user-friendly installation and maintenance, etc.