35results about How to "Avoid Serious Safety Incidents" patented technology

The invention relates to a radioactive source automatic supervision and real-time monitoring method and a system. The method mainly comprises the following steps: a positioning terminal in which a GPS positioning unit and a CDMA network positioning unit are arranged and source file information is solidified is arranged on a radioactive source; the source file information is stored in a network server of a monitoring center and a source admission range is set up; source position information and source file information is acquired at real time and corresponding source information in the network serve is updated at real time; when the source information stored in the network server changes, the monitoring center automatically obtains prompting information and judges whether the change of the source information is beyond the admission range; when the change of the source information exceeds the admission range, automatic alarm is carried out. The system realizing the method comprises a positioning terminal assembly device, a source information storing device, a source information updating device, a source information monitoring device and a real-time alarm device. The method and the system realize automatic supervision and real-time monitoring of all links of the radioactive source, thereby putting an end to severe security accidents like loss of the radioactive source, etc.

The invention discloses an automotive steering tie rod which comprises a straight body and a connector rod. One end of the straight body is connected with one end of the connector rod in a threaded manner. The other end of the straight body is connected with a steering rack of a steering arm. The other end of the tie rod is connected with a wheel knuckle. The straight body is provided with a reducing necked segment. A bent deformed part of the steering tie rod is shifted from the hidden position to a visible position through a weakened structure, so that fatigue degree of the steering tie rod during use can be known timely, countermeasures to eliminate potential hazards can be taken timely and severe safety accidents caused by continuous development of the potential hazards is avoided.

The invention provides an overtemperature protection control system and an electric water heater and relates to the technical field of water heaters. The overtemperature protection control system comprises an electric leakage protection plug, an isolation communication module, a control device and a temperature sensor. The electric leakage protection plug is electrically connected with the electric water heater through the control device. The control device is electrically connected with the electric leakage protection plug through the isolation communication module. The temperature sensor is electrically connected with the control device and used for collecting temperature data of an inner container of the electric water heater. The control device reads the temperature data, judges whether the temperature data are greater than a set threshold value or not and transmits a control signal to the isolation communication module so as to make the isolation communication module send an outage instruction to the electric leakage protection plug according to the control signal when the temperature data are greater than the set threshold value, so that the electric leakage protection plug is disconnected with an external power supply. The overtemperature protection control system can detect the water temperature in the inner container in real time and can also prevent safety accidents caused by continuous heating of the electric water heater, and the use safety of the electric water heater is guaranteed accordingly.

The invention relates to a cantilever type intelligent parking garage. The cantilever type intelligent parking garage comprises a lifting sliding table mechanism, at least two vertical columns and driving mechanisms. The lifting sliding table mechanism comprises sliding frames and upper vehicle carrying plates; the vertical columns are vertically fixed to the ground and movably connected with thelifting sliding table mechanism; each driving mechanism is arranged between the corresponding two adjacent vertical columns, the lower ends of the driving mechanisms are fixed to the ground, the upperends of the driving mechanisms are connected with the sliding frames, and the driving mechanisms are used for driving the lifting sliding table mechanism to make lifting movement; the vertical columns are provided with sliding grooves, and the sliding frames are provided with upper sliding blocks and lower sliding blocks which are matched with the sliding grooves of the vertical columns; and insurance mechanisms are further arranged on the upper portions of the sliding frames, and insurance bars matched with the insurance mechanisms are arranged on the sides of the vertical columns. Comparedwith the prior art, the cantilever type intelligent parking garage is provided with the insurance mechanisms, therefore, the inverted whole course insurance function is achieved, and during the emergency situation, severe safety accidents can be avoided effectively; the vertical columns taking the sliding supporting effect and oil cylinders for driving are arranged separately, so that the structure is simple, mounting is convenient, and maintenance is facilitated; and the vertical columns and the oil cylinders are both generally arranged, and thus expanding can be conducted according to the requirements.

The invention discloses a turnout rotary charge-control electric cabinet for a mine. The turnout rotary charge-control electric cabinet comprises a cabinet body and a circuit control module which is used for controlling turnout rotary reversing. The circuit control module comprises a data acquisition module, a data processing module and a hydraulic driving module. The data acquisition module comprises a pressure detection unit, a first position detection unit and a second position detection unit. The hydraulic driving module comprises a hydraulic performing mechanism, a hydraulic control mechanism and a hydraulic power mechanism. The cabinet body is an anti-explosion cabinet body and comprises an upper cabinet body, a lower cabinet body and a rack. The rack is a sleigh type rack. The upper cabinet body is provided with a first wiring port and a second wiring port. The turnout rotary charge-control electric cabinet is simple in structure and reasonable in design, and complexity of manual operation is avoided, accurate reversing is ensured, the transport efficiency is improved, and serious safety accidents caused by not-in-place manual operation, misoperation and the like are avoided.

The invention discloses a safety alarming type circulating gas guide valve. The guide valve comprises a left valve block and a right block valve block, and the left valve block and the right valve block are spliced left and right to form an integrity; a gas importing short tube is communicated with the center of the right end of the right valve block, a conical mobile block is arranged at the outlet of the left end of the tube body of the gas importing short tube, and a horizontal gas circulating channel is formed in the left side directly facing the conical mobile block, in the middle of theright side of the block body of the left valve block; a reset spring is further arranged on the left rod body of a guide sliding rod in a sleeving mode, the spring left end of each reset spring is fixedly arranged on the left wall of an inner cavity of a rectangular groove, the spring right end of each reset spring is fixedly arranged on the left wall surface of a sleeve body of a guide sliding sleeve, and an alarm is further arranged on the upper surface of the left valve block. The safety alarming type circulating gas guide valve solves the problem that traditional overpressure gas cannot beinformed and serious safety accidents can be caused, effectively guarantees the safety of workers and meets higher gas valve application requirements.

The invention relates to a radioactive source automatic supervision and real-time monitoring method and a system. The method mainly comprises the following steps: a positioning terminal in which a GPSpositioning unit and a CDMA network positioning unit are arranged and source file information is solidified is arranged on a radioactive source; the source file information is stored in a network server of a monitoring center and a source admission range is set up; source position information and source file information is acquired at real time and corresponding source information in the networkserve is updated at real time; when the source information stored in the network server changes, the monitoring center automatically obtains prompting information and judges whether the change of thesource information is beyond the admission range; when the change of the source information exceeds the admission range, automatic alarm is carried out. The system realizing the method comprises a positioning terminal assembly device, a source information storing device, a source information updating device, a source information monitoring device and a real-time alarm device. The method and the system realize automatic supervision and real-time monitoring of all links of the radioactive source, thereby putting an end to severe security accidents like loss of the radioactive source, etc.

The invention discloses a hydrogen leakage detection and control method of a hydrogen fuel cell vehicle and a system thereof. The detection and control method includes a start-up process control method, a driving process control method, and a parking state control method. The direct start mode and segmented start mode in the start process control method both detect the hydrogen leakage concentration HC, and when the concentration exceeds the safety limit H1, the IGN contactor will be disconnected, and the vehicle will fail to start. During the driving process, the hydrogen leakage concentration HC is detected in real time. When the concentration exceeds the safety limit H1, all hydrogen bottle valves are closed, the fuel cell is shut down, and the vehicle automatically switches to pure electric mode. During the parking process, the hydrogen leakage concentration HC in the medium will be detected regularly, and the data will be uploaded to TBOX when it is greater than the safety limit concentration H1. The invention has a hydrogen leakage detection and control strategy in the process of starting, driving and parking of the hydrogen fuel vehicle to ensure that the hydrogen concentration of the vehicle is in a safe state and avoid safety accidents caused by excessive hydrogen concentration.

The invention relates to the technical field of fluorine chemical industry, in particular to an oxidation reaction device for preparing electronic-grade hydrogen fluoride. Its characteristics are: oxidation reaction kettle, gas-liquid separator, circulation storage tank, sedimentation tank, downcomer drain pipe, boiling drain pipe, return flow drain pipe, and liquid collection tank.

The invention discloses a rolling bearing property retention reliability predication method. The method comprises: acquiring performance data at an optimal operation period of a rolling bearing, so as to construct a performance sample density function; obtaining a confidence interval of a confidence coefficient and a performance random variable according to the little probability event principle; and according to a Poisson counting process, acquiring frequencies, which are out of the performance random variable confidence interval, of the performance data and the rolling bearing property retention reliability, further acquiring the relative performance retention reliability of the rolling bearing in the future, and predicating the invalidation degree of an optimal performance attitude of the rolling bearing in the future time. By means of the method, any prior information of the performance density function is not needed, performance thresholds are not needed to be preset, the invalidation degree of the optimal performance attitude of the rolling bearing in the future time can be predicated, the predication accuracy is high, the invalidation hidden danger can be discovered in advance, and decisions can be provided for taking intervention measures in time and avoiding occurrence of serious safety accident.

The invention relates to the technical field of fluorine chemical industry, in particular to a usage method of an oxidation reaction apparatus for preparing electronic grade hydrogen fluoride. The characteristics of the usage method are as follows: hydrogen fluoride is subjected to a repeated two-phase circulating change process of gasification transpiration rising and condensation liquefaction down-flowing due to the effect of transpiration circulating; in the gas phase, the oxidation reaction of hydrogen fluoride and fluorine gas is quickly completed by fluorine gas mixing, and a hydrogen fluoride condensate is immediately formed and enriched in a circulating storage tank; and after a period of operation, the concentration of the oxidized hydrogen fluoride condensate in the circulating storage tank is higher and higher, and then the hydrogen fluoride condensate is led out as an intermediate product after reaching the standard.

The invention provides an overhead ground wire hanger. Through additionally arranging an inserting inlet channel, a guide outlet channel and a fixing chuck at the corner of the traditional lifting rope winding drum, the lifting rope is lifted to be fixed in a more stable state, happening of several serious safety accidents causes by falling in the case of winding only traditionally can be avoided,and the life and health safety of an electrician is protected; through additionally arranging an auxiliary guide frame plate, a vertical guide column, an upper elastic buffer spring and a lower elastic buffer spring, when a hook hangs a cable to walk upwardly, as an upper force applying connection rod and a lower force applying connection rod have the same rod lengths and the other ends of the two are together hinged onto a lifting seat, the lifting seat provides an acting force for the upper force applying connection rod and the lower force applying connection rod, an upper lifting guide sleeve and a lower lifting guide sleeve are driven under guide of the vertical guide column to move upwardly slowly, the lower elastic buffer spring is further pulled to generate elastic elongation deformation, and the upper elastic buffer spring is squeezed to generate elastic shortening deformation.

The invention relates to an automatic coal sliding hole anti-blocking device. The automatic coal sliding hole anti-blocking device comprises a control assembly, a first sleeve, a first roller, a second sleeve, a second roller and a fixed connecting cylinder, wherein the first sleeve, the first roller, the second sleeve, the second roller and the fixed connecting cylinder are arranged from top to bottom, the bottom end of the first sleeve is rotationally connected with the top end of the first roller, the bottom end of the first roller is rotationally connected with the top end of the second sleeve, the bottom end of the second sleeve is rotationally connected with the top end of the second roller, the bottom end of the second roller is rotationally connected with the top end of the fixed connecting cylinder, the outer side walls of the first roller and the second roller are fixedly connected with transmission steel belts in a sleeved mode, stirring protruding blocks are welded to the inner side walls of the first roller and the second roller, gear teeth are welded to the outer side walls of the transmission steel belts, and a gravity sensor is fixedly mounted on the inner side wallof the fixed connecting cylinder. The anti-blocking device can achieve the effect of preventing a coal outlet from being blocked, is high in automation degree, can achieve unmanned supervision and management, has repeatability, and can greatly avoid serious safety accidents.

The present invention discloses a cloud service system based on a rail side detection station. The system comprises an analysis processing device, an application service device, a detection station working state servo device, and an early warning management device. The invention further discloses a cloud service method based on a rail side detection station. According to the system and the method provided by the invention, since the data is uniformly stored in a redundant storage server and a target storage server, thus when one or more storage nodes are offline due to faults, the access of the data can be carried out as usual in the redundant server, and the reliability and effectiveness of vehicle traffic safety are improved. The generation and pushing of data can be completed in an effective time, and a strong guarantee is provided for the travel safety of a train. The data in a detection station server is effectively stored and transmitted, and serious accidents can be prevented. A strict access is arranged, and the ascription of liability is effectively solved at the same time.

The invention discloses a self-power-off power distribution cabinet with its own fire-fighting structure. The bearing between the support blocks is connected with a threaded rod, and the outer side of the threaded rod is connected with a clip, the outer key of one end of the threaded rod is connected with a transmission gear, and the lower part of the transmission gear is meshed with a toothed plate, and the lower part of the toothed plate is connected with a toothed plate. The surface is slidably connected to the top surface of the cabinet body, the front side of the cabinet body is provided with a positioning groove, and a pull rod is slidably connected in the positioning groove. The self-power-off power distribution cabinet with its own fire-fighting structure can facilitate the installation of various types and sizes of fire extinguishers, and when a fire occurs in the cabinet, it can automatically cut off the power and extinguish the fire automatically, which is beneficial to ensure the safety of the power distribution cabinet. Safe to use to avoid serious safety accidents when left unattended at night.

The invention discloses an on-line detection method for the damage of a siphon tube of a steam dryer, comprising: a. setting three data storage units in the data storage area of ​​the electric controller; b. the electric controller collects temperature sensor data every T seconds , calculate the average value and store it in the D (pre) data storage unit; c. The electric controller continues to collect the temperature sensor data at intervals of T seconds, and calculates the average value of several data that continue to be collected and stores it in D ( cur) data storage unit; d, compare the value stored in the D (cur) data storage unit with the value stored in the D (pre) data storage unit; e, the electric controller judges the value stored in the P (cou) data storage unit The cumulative value; the invention can detect the damage of the siphon in time and alarm to remind the staff to replace it immediately, effectively preventing the condensed water from being discharged, reducing the steam consumption, improving the drying efficiency, and avoiding various accidents.