37results about How to "Avoid potential threats" patented technology

The invention relates to a method for quickly mooring an offshore operation helicopter; equipment used in the method comprises a hydraulic power device, a quick mooring device, a prefabricated track,a camera, a feeler lever, a laser target source and control equipment, and the method comprises the following steps: S1, enabling the helicopter to enter a position above an appointed landing area; S2, enabling the hydraulic power device to drive the quick mooring device to move with the helicopter along the prefabricated track; and S3, enabling the quick mooring device to rapidly capture the feeler lever on the helicopter when the helicopter lands and meets the mooring conditions, and finishing the rapid mooring of the offshore operation helicopter. The method can be suitable for both a novelhelicopter serving at the present stage and an old-model helicopter serving at the present stage, and is suitable for severe sea conditions above four stages at the same time; the mooring process ofthe offshore operation helicopter is automatically controlled, so that the operation difficulty of landing the helicopter on a ship is greatly reduced; the helicopter ship landing safety is improved;the method is more reliable and reasonable, and manpower and material resources are saved.

The invention discloses a chuck fixture for loading and unloading radioactive sources of well logging probes. Mesh to drive the spin chuck gear and shaft to turn. A clamp seat is arranged on the rotating chuck gear, and two opposite clamps are installed on the upper surface of the clamp seat through slide rails, and the two clamps are respectively connected with clamping stepping motors. A cross bar support is arranged on the base, a pin shaft is arranged on the cross bar support, and the cross bar and the pin shaft rotate synchronously. The crossbar stepping motor is connected with the pin shaft to drive the pin shaft to rotate. The invention can realize the clamping and loosening of the well logging probe, and can automatically complete a series of actions such as opening the bin door, loading and unloading the radioactive source, and closing the bin door during clamping, thereby avoiding the existing manual operation potential threat to human health. The invention has simple mechanism, stable and reliable operation and low maintenance cost.

The invention discloses a method for paving a heating carbon fiber composite electro-thermal material laid under a cement screed-coat. The heating carbon fiber composite electro-thermal material comprises a reflecting layer, a heat-insulation layer, a carbon fiber low-temperature electro-thermal composite material, a waterproof layer, an anti-leakage current layer and the cement screed-coat which are sequentially laid on a cement ground, and the carbon fiber low-temperature electro-thermal composite material is a heating planar heater. The method for paving the heating carbon fiber composite electro-thermal material laid under the cement screed-coat is realized by the aid of the waterproof layer, the carbon fiber low-temperature electro-thermal composite material is waterproof and moisture-proof, the laid anti-leakage current layer can lead leaked current of the carbon fiber low-temperature electro-thermal composite material to directly enter an earth wire, and potential threats of the leaked current are avoided. In addition, the method solves problems that a carbon fiber low-temperature electro-thermal composite material is easy to be corroded and broken during laying in the prior art, and life safety of residents is guaranteed.

The invention provides an overpressure relief device with controllable opening modes, which has automatic, manual and remote control opening modes. The device provided by the invention can realize the function of automatic release of overpressure, that is, when the pressure in the fuel depot rises to the set threshold, it can automatically open the cover to discharge the high-pressure gas to the safety channel; at the same time, it also has the function of manual and remote control opening, That is to say, regardless of whether the pressure in the warehouse reaches the set threshold or not, it can be opened manually or remotely, and the toxic and harmful gases in the warehouse can be released to the safe passage outside the warehouse. The device has the characteristics of reliable locking, fast opening, controllable opening mode, simple structure and convenient maintenance.

The invention provides a smooth processing device and a smooth processing method of CL-20 grains. The device comprises smooth grinding equipment, and agitating and ageing equipment, wherein a discharging opening of a smooth grinding cavity is connected with a feeding opening of an agitating and ageing cavity through a pipeline; a discharging opening of the agitating and ageing cavity is connected with a feeding opening of the smooth grinding cavity through a pipeline; the position of the pipeline, which is close to the agitating and ageing cavity, is provided with a discharging valve; a material circulating pump is arranged on the pipeline behind the position. Slurry formed by uniformly mixing the raw materials CL-20 and a grinding solution and slurry is conveyed into the smooth processing device to be circularly processed between the smooth grinding cavity and the agitating and ageing cavity; the CL-20 slurry which is sufficiently grinded and aged is discharged and then is filtered in vacuum and dried to finally obtain a CL-20 product with smooth grains. According to the smooth processing device and the smooth processing method disclosed by the invention, methods of wet-method agitating and grinding and solvent dissolving are effectively combined; the device and the method are simple to operate and high in safety; the production efficiency is high; the smooth processing of the CL-20 grains with high mechanical sensitivity can be realized.