62results about How to "Guaranteed to be centered" patented technology

The invention relates to a vertical tube type falling-film evaporator. The vertical tube type falling-film evaporator comprises an upper tube box, a lower tube box, a casing, multiple heat exchange tubes, an upper tube plate and a lower tube plate, wherein a solution inlet and a secondary steam outlet I are arranged at the upper tube box, a concentrated liquid outlet and a secondary steam outlet II are arranged at the lower tube box, a steam inlet is arranged at the upper part of the casing, and a condensed water outlet is arranged at the lower part of the casing; a film distributing device used for distributing a solution on the inner walls of the heat exchange tubes is arranged in the upper tube box; the film distributing device comprises a liquid bearing plate, a liquid feeding plate, a liquid distributing plate and liquid guiding tubes. By means of a steam stripping effect generated by secondary steam and liquid films, the heat transferring push force and the evaporation efficiency are increased. The liquid films can be uniformly distributed by the film distributing device, the film forming is stable, the wall drying phenomenon is avoided, the recovery rate of secondary steam produced in an evaporator is high, the recovery is convenient, and the heat transferring efficiency is improved.

The invention discloses a hydraulic casing centralizer and belongs to the field of petroleum and gas development. The centralizer comprises a center pipe, a centralizing connector, a first ball, a pin shaft, a first fixing cover, a liquid cylinder, a fixing screw, a second ball, a second fixing cover, a piston, a hydraulic channel, a valve, a screwed plug, a centralizing arm, an oblique plate and a tension spring. One end of the center pipe is connected with the centralizing connector in a sleeved mode. The other end of the center pipe is connected with the liquid cylinder in a sleeved mode. The piston is arranged between the liquid cylinder and the center pipe. The centralizing arm and the oblique plate are arranged between the centralizing connector and the liquid cylinder in sequence. According to the hydraulic casing centralizer, after cement injection, pressure accumulating is carried out in a casing, the piston pushes the oblique plate to move, the centralizing arm is pushed forcibly to move outwards to be supported to a well wall by moving of the oblique plate, a casing string is forced to be in the center, the fact that the horizontal well casing is centered is effectively guaranteed, cement ring uniformity between the casing and a well hole is guaranteed, accordingly, well cementation quality is improved, in addition, the hydraulic casing centralizer is convenient to mount and easy to use, extra construction equipment is of no need, and therefore wide application prospect is achieved.

The invention provides a foam line starching device, belonging to the field of production equipment of architectural decoration lines. The foam line starching device comprises a workbench, a positioning guide device and a scraping device, wherein the workbench is provided with a horizontal working surface; the positioning guide device comprises a vertical extrusion mechanism, a positioning plate and a transverse extrusion mechanism, the vertical extrusion mechanism is used for pressing a foam line on the workbench, and the positioning plate and the transverse extrusion mechanism are used for extruding the foam line from the two sides; the positioning guide device can enable the foam lines to keep linear motion, and the thickness of coated mortar is uniform; the scraping device comprises a mortar groove and a material pressing mechanism, the mortar groove is used for coating mortar on the surface of the foam line, and the material pressing mechanism is used for compacting the mortar coated on the surface of the foam line. When passing through the mortar groove, the foam line orderly passes through a feeding inlet, a feeding outlet and a material pressing outlet of which the sizes are orderly increased; after the foam line passes through the feeding outlet, the surface of the foam line is coated with thick mortar; after the foam line is extruded by the material pressing mechanism, the mortar on the two sides of the foam line becomes thinner and more compact and is not easy to fall off.

The invention relates to an intelligent auxiliary locating indicating car for engineering machinery assembling. The intelligent auxiliary locating indicating car comprises a stretching pressing locating frame, a sensing arm telescopic frame and a moving direction indicating screen. The sensing arm telescopic frame is fixedly connected to the upper end of the stretching pressing locating frame. The moving direction indicating screen is arranged above the sensing arm telescopic frame in a covering mode. The stretching pressing locating frame comprises a base plate. Supporting legs are fixed at the lower end of the base plate. Universal balls are arranged at the lower ends of the supporting legs. An oil cylinder is fixedly arranged in the middle of the upper end face of the base plate. The sensing arm telescopic frame comprises a top plate. The moving direction indicating screen comprises an upper cover. A displaying screen and a keyboard are arranged on the upper end face of the upper cover. Manpower is replaced for detecting the up-load position of engineering machinery, direction guidance is provided for lifting assembling personnel, the problem that assembling personnel observe the position, relative to an engineering machinery bottom disc, of an up-load part of the engineering machinery beside the engineering machinery is avoided, manpower is reduced, the safety coefficient of the assembling personnel is improved, and working efficiency is improved.

The invention provides an automatic clear-up packing machine. The automatic clear-up packing machine comprises a conveyor belt; the conveyor belt is sequentially provided with a first automatic separating device, a second automatic separating device, a third automatic separating device and a shaping mechanism from left to right; a blanking device is arranged on the conveyor belt, and the right side of the blanking device is provided with a clapboard which is connected with a telescoping rod; one end of a machine shell is connected with the conveyor belt, and the other end of the machine shell is connected with a slide rail, the bottom of the slide rail is provided with a baling box, and the bottom of the baling box is provided with a weighing machine. The automatic clear-up packing machine has the beneficial effects that the clear-up efficiency is high, and the labor intensity of workers is reduced, so that the production efficiency of a production line is improved; the automatic clear-up packing machine is suitable for continuous production.

The present disclosure relates to a camera viewing angle adjustment method and device, and belongs to the technical field of image processing. The method includes: acquiring a reference image captured within the viewing angle of the camera; graying the reference image; and calculating the gray value of each pixel on the reference line for each reference line on the reference image sum, to obtain the total gray value of the reference line, the reference line is one of the rows and columns on the reference map; according to the total gray value of each reference line, it is reminded to adjust the camera’s perspective. It solves the problem that the image obtained when the user adjusts the camera angle of view according to his own feeling still has an unreasonable composition problem; realizes that when the image composition obtained by using the camera is unreasonable, the user is reminded to adjust the camera angle of view to achieve In order to improve the effect of user experience.

Disclosed is a hydraulic casing centering device used for centering a casing in a well cementing and completion technology. The hydraulic casing centering device comprises a body, a driving mechanismand a centering mechanism, wherein the body is a tubular structural piece provided with a central hole and connected to the casing; the driving mechanism comprises a piston and a piston cylinder sleeve, the piston cylinder sleeve is mounted on the body in a sleeving mode and fixedly connected with the body, an accommodating cavity is formed between the piston cylinder sleeve and the body, the piston is mounted on the body and located in the accommodating cavity, the body is provided with a liquid inlet hole, and the liquid inlet hole communicates with the central hole and the accommodating cavity; and the centering mechanism is mounted on the body and comprises a centering device body and a taper sleeve, one end of the centering device body is connected with the piston, the other end of the centering device body abuts against the taper sleeve, and the taper sleeve is fixed to the body, and the centering device body can climb upwards along the outer conical surface of the taper sleeve.