6results about How to "Guarantee normal" patented technology

The application discloses a kind of full-time hot standby fault zero attenuation air supply system and method, it is related to air supply system technical field, the air supply system includes: main fan blade, vice fan blade, deceleration synchronization unit, switching control module, risk prediction module, air supply pressurization module and emergency backup unit.The deceleration synchronization unit is connected to the deceleration of main fan blade and vice fan blade, when main fan blade is fault-free operation, vice fan blade can follow it and rotate at low speed, when main fan blade appears fault or there is predicted fault risk, vice fan blade does not need to start quickly to promote speed from static, avoid the delay problem that vice fan blade starts to stable air supply when traditional double fan group switches, ensure that the airflow barrier of scene is not destroyed, guarantee target area air supply environment stability, simultaneously, vice fan blade is standby by main fan blade synchronous rotation, so that vice fan blade standby process does not need to be driven separately, realize the energy-saving standby effect of system, reduce the problem of traditional double fan simultaneous start energy consumption.

The application discloses a coal mine underground integrated intelligent circulating leak-stopping system, which comprises a single-bag pipeline cleaning and plugging device, a two-plugging-one-injection hole sealing device and an intelligent circulating leak-stopping pump truck, two pipeline fixing sleeves are symmetrically arranged at the left and right ends of the bag of the single-bag pipeline cleaning and plugging device, the right ends of a leak-stopping pipe and a water injection cleaning pipe are connected with a leak-stopping and cleaning conversion valve, the right end outlet of the leak-stopping and cleaning conversion valve is arranged in a fissure sealing section, and the left end of the leak-stopping pipe is connected with the intelligent circulating leak-stopping pump truck. The leak-stopping and cleaning conversion valve is used for realizing the circulating operation of leak-stopping and cleaning of the fissure sealing section, timely cleaning of the leak-stopping pipe can effectively prevent the leak-stopping pipe from being blocked, the grouting leak-stopping effect is greatly improved, meanwhile, the automatic control of the circulating grouting leak-stopping is realized through the intelligent controller, the working strength is reduced, the working failure in the leak-stopping grouting work is reduced, the normal grouting leak-stopping work is ensured, and the leak-stopping effect and the leak-stopping efficiency are further improved.

The utility model relates to the technical field of inspection devices for silica gel foam production, and discloses an inspection device with an adjusting function for silica gel foam production, which comprises a support assembly, a brake transmission shunt I is mounted on one side of the top of the support assembly, and a brake transmission shunt II is mounted on the other side of the top of the support assembly. One end of the first brake conveying branch flow communicates with one end of the second brake conveying branch flow, an adjusting detection assembly is fixedly installed on the outer side of one end of the first brake conveying branch flow and the outer side of one end of the second brake conveying branch flow, and meanwhile a detection branch flow assembly is arranged at the top of the communicating position of one end of the first brake conveying branch flow and one end of the second brake conveying branch flow. According to the utility model, the detection shunting assembly is arranged on the device, so that when the device is used, two specifications which meet the standard and do not meet the standard can be generated in the detection working time, and the shunting work of two roads can be carried out through the arranged detection shunting assembly; and manual sorting work after detection is avoided.

The invention discloses a radio frequency catheter ablation assembly and a radio frequency ablation system. The radio frequency ablation assembly comprises a handle and a radio frequency catheter connected with the handle. A radio frequency electrode is arranged on the radio frequency catheter in the length direction of the radio frequency catheter, a movable electrode slip sheet is electrically connected to the electrode, an electrode length adjusting assembly is arranged in the handle, the movable electrode slip sheet can move in the length direction of the radio frequency electrode under the action of the electrode length adjusting assembly, the length of the working end of the radio frequency electrode is adjusted, and the slip sheet is electrically connected with an external power source during use. The catheter radiofrequency ablation device effectively solves many technical problems of existing ultrasound-guided lower limb varicose vein catheter radiofrequency ablation, the length of an ablation catheter can be accurately adjusted, and length mismatching is avoided; a medicine injection function can be integrated, and the problem of lack or non-uniform injection is solved; the working end temperature can be flexibly adjusted, and the ablation problem is reduced; the blood vessel curve passing performance and the thrombus resistance are improved; the positioning difficulty is reduced, and the dependence on experience is reduced; uniform mixing of the hardening agent is realized; the spacer fluid injection operation is simplified, and the capacity difference influence is reduced.

The invention relates to the related technical field of casting equipment, discloses an aluminum alloy pipe fitting casting device and a process thereof, and aims to solve the problem that the subsequent independent treatment is needed due to residual materials at a casting pouring opening. A cutting insert is arranged between a pouring nozzle on a movable mold and a cast aluminum alloy flange pipe fitting; aluminum alloy liquid is poured into a mold cavity of the movable mold through the pouring nozzle and the cutting-off insert, after the flange pipe fitting is cooled and formed, the movable mold is opened according to adjustment of the mold closing motor and the mold closing lead screw, excess materials on the pouring opening are directly cut off after the mold is opened by means of shearing force between the cutting-off insert and the flange pipe fitting, and therefore the flange pipe fitting is formed. And finally, the effect of cutting off during mold opening of the pouring gate is achieved.

This application relates to the field of yarn breakage detection technology in the textile industry, and in particular to a photoelectric method and apparatus for yarn breakage detection in the textile industry. The method includes: forming a stripe-shaped light spot using an emitted light source and projecting the stripe-shaped light spot onto the yarn; during the mechanical movement of the yarn, acquiring multiple sets of light intensity change data when the stripe-shaped light spot is blocked by the yarn using a photosensitive array; wherein the photosensitive array contains multiple pixel units with pixel labels, and the size of the pixel unit is smaller than the diameter of the yarn; obtaining the pixel label at the lowest light intensity point in each set of light intensity change data, the lowest pixel light intensity point corresponding to the lowest voltage point output by the photosensitive array; for each set of light intensity change data, calculating the ratio of the minimum to the maximum value among the acquired pixel labels to obtain the rate of change of the yarn at multiple positions; and determining whether the yarn is broken based on the comparison results of multiple rates of change with a preset threshold. This application can accurately and efficiently detect the yarn condition.