268results about How to "Easy to install and operate" patented technology

A tubular column for separated layer water injection comprises a subsurface safety valve, an exhaust valve, a multi-tube traverse packer, a hydraulic-control pipeline, hydraulic-control packers, sliding sleeve type water nozzles, a backwashing valve, a suspension packer, a sand-prevention bushing, sand filtering tubes and interlayer packers. An oil tube is sequentially connected with the subsurface safety valve, the multi-tube traverse packer, the corresponding hydraulic-control packer, the corresponding sliding sleeve type water nozzle, the corresponding hydraulic-control packer, the corresponding sliding sleeve type water nozzle, the corresponding hydraulic-control packer, the corresponding sliding sleeve type water nozzle, the backwashing valve and a guide connector. The sand-prevention bushing is installed outside the oil tube in a connected mode. The suspension packer, the corresponding sand filtering tube, the corresponding interlayer packer, the corresponding sand filtering tube, the corresponding interlayer packer, the corresponding sand filtering tube and a plug are sequentially installed on the sand-prevention bushing in a connected mode, and a bushing is arranged on the outmost part. The exhaust valve is installed on the multi-tube traverse packer in a connected mode, the hydraulic-control pipeline is installed on the exhaust valve for control, the hydraulic-control packers are traversed, connected and controlled through the same hydraulic-control pipeline, the sliding sleeve type water nozzles are connected through the hydraulic-control pipeline for control, and the subsurface safety valve is connected with the hydraulic-control pipeline for control.

The invention discloses an injection type suction drilling tool for residual removal of a drilling center of a weak formation. The drilling tool comprises an air inlet pipe, a cutting removal pipe, a power head and a drill rod, wherein a cutting removal passage and an air inlet passage are formed in the drill rod; an injection type suction drill bit is arranged at the front end of the drill rod; cutting heads are arranged on the end part of the injection type suction drill bit; cutting inlets are formed in the top sidewall of the injection type suction drill bit; injection holes are formed in the inner sidewalls of the cutting heads; high-pressure injection passages are formed in the injection type suction drill bit. According to the drilling tool, a negative pressure area is formed in the cutting removal passage by jetting of the high-pressure injection passages in the cutting removal passage of the center, a suction effect on drilling cuttings is achieved by the cutting inlets, a stirring effect on the bottom of a borehole is achieved by air jets injected by the injection holes, and the drilling cuttings at the bottom of the borehole are driven to be transferred into the cutting holes, and are promoted to enter the cutting removal passage of the center through the cutting inlets, so that the problems of jamming of the drilling tool, burying of the drilling tool, difficulty in removal of the cuttings in the borehole and the like in an existing coal bed gas exhaust drilling process are solved, the drilling efficiency is greatly improved, and the drilling depth is greatly increased.

The invention discloses a sewage drainage energy-saving flash tank, which comprises a shell, a steam collector, a Laval tube and a heat exchanger. The steam collector, the Laval tube and the heat exchanger are assembled in the shell, the steam collector is located above the Laval tube, the heat exchanger is located in vapor phase and liquid phase region surrounding the steam collector and the Laval tube, an inner cavity of the shell is communicated with a boiler sewage inlet tube, an evacuation tube is disposed at the top of the shell, and a bottom blow-off opening is arranged at the bottom of the shell. The sewage drainage energy-saving flash tank has the advantages that the sewage drainage energy-saving flash tank is simple and compact in structure, convenient in installation and operation and easy in popularization and use, can realizes energy conservation and water conservation effects, and the like.

The invention relates to the technical field of solar energy, in particular to an automatic adjustment and conversion control device for a heliostat in a tower-type solar heat collecting power generation system. On the present common heliostat support tracking mechanism, a device is arranged and is provided with four connection points (A, B, C and D) equipped with bearings; AB, BC, CD and AD are connection rods and form an equilateral parallelogram; a reflection positioning surface F is arranged on the extending line of the BA edge of the parallelogram; a sunlight tracking probe E is arranged on the extending line of the DA edge; the points A and C of the parallelogram are connected by adopting a slide rod H; the point A of the parallelogram is connected with a heliostat support G; the heliostat support G is perpendicular to the AC slide rod; the AB edge of the parallelogram of the automatic adjustment and conversion control device for the heliostat tracking mechanism is connected with a mounting connection rod L, and can move rotationally only; and the mounting connection rod L is fixed on the ground.

The invention relates to a nitrogen/chlorine (argon/chlorine) mixing and proportioning system and an operation method thereof, aiming to overcome the defect that the manual nitrogen/chlorine (argon/chlorine) mixing and proportioning process in the prior art is completed by manual operation rather than automatic operation and is low in proportioning precision and high in operation risk. The nitrogen/chlorine (argon/chlorine) mixing and proportioning system comprises nitrogen (argon) gas running equipment, chlorine gas running equipment, a nitrogen and chlorine (argon and chlorine) mixer, a mixed gas storage tank and a PLC (programmable logic controller) control cabinet, wherein tail ends of the nitrogen (argon) gas running equipment and the chlorine gas running equipment are connected with the nitrogen and chlorine (argon and chlorine) mixer together, the nitrogen and chlorine (argon and chlorine) mixer is further connected with the mixed gas storage tank for a feeding point, a pressure sensor is arranged on the mixed gas storage tank, the PLC control cabinet is connected with all the equipment, and intelligent management and operation is realized by an internal control and management system. The nitrogen/chlorine (argon/chlorine) mixing and proportioning system and the operation method thereof have the advantages that automatic proportioning operation can be realized, operators can keep away from dangerous sources, the proportioning precision is increased, the service life of the equipment is prolonged, the service pressure of the system is stabilized, and leakage caused by long-term overhigh pressure load for the end equipment is avoided.

The invention discloses a water bursting test device and a test method thereof. The device comprises a water tank and a model box, a water storage tank is arranged at the bottom of the model box, a plurality of monitoring elements are arranged on the outer wall of the model box, and variable channel partition plates and partition plates are arranged on the top of the water storage tank; a water permeable plate is arranged on the upper surfaces of the variable channel partition plates and the partition plates; a pressure pump and a constant-pressure valve are connected between the water tank and the water storage tank through a water injection pipeline; a pressure meter is arranged on an outlet pipeline of the pressure pump, a heating device is arranged on the inner side of the bottom of the water tank, and a plurality of water inlet holes are formed in the side wall of the water storage tank; a plate inlet is formed between the side wall of the water storage tank and the correspondingvariable channel partition plate, and a drainage valve is arranged at the bottom of the plate inlet. Water bursting phenomena at different test temperatures, different water pressures and different water bursting flow speeds can be simulated. The device can be used for water bursting tests of different test materials, and is simple in structure and complete in function.