90results about How to "Will not cause safety accidents" patented technology

The invention relates to a raw coke over gas riser residual heat recovery device, which belongs to the technical field of heat energy recycles. The device comprises an upper header and a lower header which are surrounded outside the inner wall of a raw coke over gas riser, wherein the upper header and the lower header inwards lead out a group of separate type heat pipe heat-absorbing ends which pass through the inner wall of the raw coke over gas riser and communicate the upper header with the lower header respectively, and simultaneously the upper header and the lower header are communicated with two ends of a separate type heat pipe heat-releasing end respectively through connecting pipelines upwards, and the separate type heat pipe heat-releasing end is positioned in a heat exchange steam drum. The recovery device achieves fast recovery of heat, is convenient to arrange by adopting a separate type heat pipe, and can ensure that the wall temperature of the heat pipe is higher than the tar dew point of the raw coke over gas by improving the steam producing pressure, so the problem of coking is not generated; and besides, with small quantity of the working medium inside the separate type heat pipe, the heat pipe can avoid the leakage of the steam-water mixture in the entire steam drum into a coking chamber like a water jacket even if being destroyed, thereby preventing safety accidents and ensuring the safe operation of a coke oven.

Disclosed is a vehicle door opening walking forbidding system. The vehicle door opening walking forbidding system comprises a hydraulic pump, a jacking rod roller valve, a filter, a gas bag, an oil tank, a safety valve, a gear selecting reversing valve, a forward gear clutch, a backward gear clutch and a control mechanism. A jacking rod of the jacking rod roller valve is connected with a vehicle door of a vehicle driving cab. A gas inlet P of the jacking rod roller valve communicates with the gas bag. An executing opening A of the jacking rod roller valve communicates with a gas control opening K of the control mechanism. An oil inlet P of the control mechanism communicates with an oil outlet of the hydraulic pump. An executing opening A of the control mechanism communicates with an oil inlet P of the gear selecting reversing valve. An executing opening A of the gear selecting reversing valve communicates with the forward gear clutch. An executing opening B of the gear selecting reversing valve communicates with the backward gear clutch. An oil inlet of the hydraulic pump communicates with the oil tank through the filter. According to the vehicle door opening walking forbidding system, when the vehicle door of the vehicle driving cab is not closed, even if a driver operates the gear selecting reversing valve, a vehicle cannot advance or retreat, so that a safety accident does not occur.

The invention provides a barge rocker arm device for launching a jacket. The device comprises a rocker arm, wherein the middle part of the rocker arm is hinged to the end of a barge angled deck integrally; a sliding groove I is formed in the surface, which is opposite to the barge angled deck, of the upper part of the rocker arm; a sliding groove II corresponding to the sliding groove I is formed in the barge angled deck; a rolling wheel is placed inside the sliding groove II, abuts against the hinged position of the rocker arm and the barge angled deck and is limited by a detachable limiting device; and a rolling wheel sunk compartment containing the rolling wheel and a winch spool sunk compartment containing a winch spool are manufactured on the barge angled deck, the winch spool sunk compartment is located behind the rolling wheel sunk compartment, and a cable winding around the winch spool winds around the rolling wheel and is fixed at the upper end of the rocker arm. The device substitutes for past balance weight methods or cable car traction methods, so that after the jacket is launched from the rocker arm of a barge, the rocker arm can return to the original position at the constant speed automatically, no safety problem exists, and the efficiency is high.

The invention relates to the technical field of temporary blocking gel for an oil-gas field, and provides temporary blocking gel for a low-pressure oil-gas well and a preparation method thereof. The temporary blocking gel for a low-pressure oil-gas well comprises the following raw materials in percentage by weight: 0.25-0.35% of polyacrylamide, 0.2-0.25% of oxidizer, 0.2-0.3% of reducer, 0.1-0.3% of gel breaker and the balance of water. The preparation method comprises the following steps: after swelling, adding the oxidizer, the reducer and the gel breaker; and further stirring to obtain the temporary blocking gel for a low-pressure oil-gas well. The temporary blocking gel provided by the invention is low in cost, simple to prepare, safe and convenient in construction and wide in application range; after gel forming, the temporary blocking gel is high in strength favorable in blocking effect, and can not cause leakage of kill fluid; after gel forming, the temporary blocking gel is favorable in viscosity and high in strength, simultaneously prevents blocking agent from entering a non-target layer, and can not cause pollution to an oil layer; and after gel breaking, the temporary blocking gel can realize clean and thorough flowback, can not cause safety accidents, and can not pollute the oil layer, thereby providing a guarantee for implementation of further work.

The invention discloses an automobile seat heating cushion. The automobile seat heating cushion comprises a heating seat cushion and a heating device arranged in foams of the heating seat cushion, wherein the heating device comprises a bent circulating heat conduction pipe; a liquid outlet end of the circulating heat conduction pipe is communicated with a liquid storage tank; a liquid inlet end of the circulating heat conduction pipe is communicated with a heating chamber; a heating wire is arranged in the heating chamber and is connected with a control unit through a lead wire to form a loop; and the heating wire comprises at least two heating wire units which are not connected. The heating cushion disclosed by the invention utilizes conductive liquid to heat; once if the conductive liquid leaks, the amount of the conductive liquid in the heating chamber is reduced, so that the heating wire is in short circuit and the power can be automatically off, and furthermore, the protection effect is realized and the safety accidents are not caused; and furthermore, a heat sensor is used for feeding a monitored temperature back to the control unit and the control unit is used for adjusting the heating temperature according to the received temperature and the temperature needed by a driver, and the automobile seat cushion is relatively comfortable.

The invention belongs to the technical field of running machines, and particular relates to a safety accessory device of a running machine. The safety accessory device comprises wearable accessory equipment and an attention monitoring device. The wearable accessory equipment comprises an electroencephalogram collector, a chip special for electroencephalogram data conversion and a wireless sending end, and the electroencephalogram collector is electrically connected to the wireless sending end through the chip special for electroencephalogram data conversion; the attention monitoring device comprises a wireless receiving end, a brain wave signal processing module, a comparison module, a control module, a concentration degree display screen and an alarm, the brain wave signal processing module receives data through the wireless receiving end and extracts the concentration degree from the data, and the brain wave signal processing module is electrically connected to the concentration degree display screen and the comparison module. The control module controls the alarm to give an alarm and reduce the rotating speed of a motor of the running machine. The safety accessory device has the advantages that brain waves are collected, the concentration degree is extracted to regulate the rotating speed of the motor of the running machine, a runner is reminded through the concentration degree display screen and the alarm, and it is guaranteed that accidents caused by distraction of the runner are avoided.

The invention discloses a working-condition self-adaptive lifting and falling-prevention device of a scaffold. The working-condition self-adaptive lifting and falling-prevention device of the scaffold comprises a scaffold lifting mechanism, a lever type linkage mechanism and a falling-prevention mechanism, wherein the scaffold lifting mechanism, the linkage mechanism and the falling-prevention mechanism are arranged on a frame, a bolt hole which is connected with a scaffold frame is formed on the lower portion of the frame, the scaffold lifting mechanism is connected with the falling-prevention mechanism through the linkage mechanism, and the upper portion of the linkage mechanism is connected with an outer wall. The working-condition self-adaptive lifting and falling-prevention device of the scaffold has the advantages of well achieving purposes of normal lifting and falling-prevention due to the fact that an integrated drive system is formed by achieving the normal lifting function through the scaffold lifting mechanism, achieving real-time monitoring and transmission to a lifting state through the linkage mechanism and achieving the emergency-brake handling to sudden accidents through the falling-prevention mechanism; being skillful in design, convenient to install, safe and reliable, particularly suitable for the scaffold in the high-rise building construction and good in popularization and use value.

The invention relates to an automatic combination-fireworks fuse inserting device and belongs to the technical field of automatic production of fireworks. The automatic combination-fireworks fuse inserting device comprises a support unit, a fuse feeding unit, a punching and inserting unit, a press positioning unit and a driving unit. The fuse feeding unit and the press positioning unit are mounted on a punching and inserting rack of the support unit, and the punching and inserting rack is fixed to a frame. The driving unit controls actions of the fuse feeding unit, the punching and inserting unit and the press positioning unit. A stepping motor drives a fuse feeding roller to move, and a cylinder drives a punching device and an inserting device to realize switching between a punching station and an inserting station and drives movements of a press block and a positioning roll. By the automatic combination-fireworks fuse inserting device, punching quality is guaranteed, fuses cannot be inserted repeatedly or be missed out during inserting, and accordingly fuse inserting efficiency is high; fires caused by fuse interference during inserting are not easy to be caused, and fireworks effect and safety in use are not affected. The automatic combination-fireworks fuse inserting device is high in automation degree and adaptable to the full-automatic production.

The invention discloses a storage battery internal resistance measuring circuit and a measuring method. In a current storage battery internal resistance measuring method, interference is generated forrelay protection equipment, and a measuring device is high in cost and low in precision. The measuring circuit comprises an MCU circuit (4) and a measured storage battery (1), wherein a voltage collection circuit (2), a current collection circuit (6) and an intelligent load circuit (3) are connected between the MCU circuit and the measured storage battery; the intelligent load circuit is electrically connected with the current collection circuit; the voltage collection circuit comprises a digital/analog converter (7), an instrument amplifier (8) and a band-pass filter (9); the digital/analogconverter is electrically connected with the instrument amplifier; the instrument amplifier is electrically connected with the band-pass filter; the intelligent load circuit comprises a serial interface (10), an analog/digital converter (11), an output converter (12) and a sampling resistor (13); and the serial interface, the analog/digital converter, the output converter and the sampling resistorare electrically connected in sequence. The measuring circuit is applied to measurement of storage battery internal resistance.

The invention discloses a fireworks lead conveying device. The fireworks lead conveying device comprises a driving wheel (1), a lead inlet guiding pipe (3), a lead outlet guiding pipe (4), a first roller (5) and a second roller (6), wherein a flexible conveyer belt (8) is mounted on the first roller (5) and the second roller (6) in a wrapping manner and partly wraps the periphery of the driving wheel (1); the lead inlet guiding pipe (3) is aligned with the wrapping inlet of the driving wheel (1) and the flexible conveyer belt (8), and the lead outlet guiding pipe (4) is aligned with the wrapping outlet of the driving wheel (1) and the flexible conveyer belt (8). The fireworks lead conveying device disclosed by the invention can maintain the quality of a lead and does not change the combustion efficiency of the lead.

The invention discloses an automatic mixing machine with multiple vibrating feeders and for powdery materials. The automatic mixing machine comprises a mixing frame, a power bracket and feed hoppers,wherein the mixing frame is provided with stirring rods, the vibrating feeders, a vibration chamber, a mixing tank and a collecting hopper from top to bottom; the power bracket is provided with a stirring motor, a mixing motor and a steering motor from top to bottom; a discharging barrel is arranged below the collecting hopper and is arranged on a trolley; the trolley is placed in a water tank; and the water tank is filled with water. According to the invention, a plurality of the vibrating feeders are adopted, a plurality of powdery raw materials are uniformly stirred in the respective vibrating feeders before mixing, and do not interact with each other or influence each other during mixing even under the rotary friction effect of the stirring rods; the raw materials are evenly mixed through vibration and rotation during mixing and the mixing process is free of rotary friction, so safety is greatly improved; and the automatic mixing machine is especially applicable to mixing of dangerous, explosive and highly-toxic powdery materials.

The invention discloses a critical speed flow metering system. The system comprises a throttle mechanism and a data acquiring measurement system, wherein the throttle mechanism comprises a valve body and a pore plate arranged in the valve body, the data acquiring measurement mechanism comprises a PC, a control cabinet, a temperature sensor and two pressure transmitters; the temperature sensor and the two pressure transmitters are fixed on the valve body, one pressure transmitter is located at the downstream side of the pore plate, and the other pressure transmitter and the temperature sensor are located at the upstream side of the pore plate; a data acquiring module and a communication module are arranged in the control cabinet, the temperature sensor and the two pressure transmitters are connected with the data acquiring module, and the data acquiring module is used for transmitting acquired data to the PC by the communication module. The system disclosed by the invention is capable of automatically, accurately and quickly measuring the flow of fluid at the critical speed according to the acquired data, and the aim of integrating data acquisition, transmission and metering is realized.

The invention discloses horizontal punching equipment. The horizontal punching equipment comprises a bottom plate, a first punching base plate and a second punching base plate, wherein the first punching base plate and the second base plate are arranged on the bottom plate; a hollow cylinder is arranged on the first punching base plate and connected with a punching pin; the punching pin faces thesecond punching base plate; a first profile groove and an ejection device are arranged on the two surfaces of the second punching base plate separately; the first profile groove faces the first punching base plate; the ejection device can penetrate through the second punching base plate to penetrate into the first profile groove; and a bearing device is arranged between the first punching base plate and the second punching base plate. By means of the horizontal punching equipment, waste can be effectively collected, potential safety hazards are avoided, and the waste can be directly dischargedinto existing seamless pipe machining equipment after being processed.

The invention provides an LED light supplementing lamp, which comprises a front shell, a rear shell, a circuit control module arranged inside the rear shell, and an LED lamp arranged inside the front shell, wherein the front end of the front shell is provided with a reflector cup and a light transmitting window; the rear wall of the front shell and the front wall of the rear shell are connected; the circuit control module and the LED lamp are connected; the side wall of the rear shell is fixedly provided with a leading-out wire pipe; one end of a leading-out wire passes through the leading-out wire pipe and is connected with the circuit control module; the leading-out wire pipe outside the side wall of the rear shell is provided with a locking nut; and the leading-out wire pipe inside the side wall of the rear shell is coated with a sealing adhesive layer. The LED light supplementing lamp is used for improving the vehicle license plate recognition rate in the case of night road monitoring and photographing, and requirements on image definition by intelligent vehicle license plate retrieval are achieved; the light supplementing lamp has a low power and energy conservation and environment protection are realized; the light is uniform and gentle, the sight line of a driver is not influenced, safety driving of the driver can be ensured, and the safety is high; and the rear shell has good sealing effects, influences on the LED lamp by the environment are few, and the service life is long.

The invention discloses an urban rail vehicle storage battery feed prevention control method and system, and the system comprises a vehicle-mounted signal system, an OCC, a TCMS control module, a first relay, a second relay, a third relay, and a fourth relay. The invention can wake up a host device remotely without waking up high-power consumption devices, Storage battery charging management is completed through the vehicle-mounted signal system, the TCMS control module and the like, the energy consumption in the storage battery charging process is greatly reduced, the storage battery charging management problem of the full-automatic driving train in the dormant state is solved, and the feed problem caused by long-time discharging of the storage battery is avoided; the awakening and dormancy control of the host device is performed through the vehicle-mounted signal system, so that the remote awakening and dormancy control of the train is realized, personnel do not need to get on the train for processing, the labor cost is reduced, and the maintenance management of long-time storage of the train is facilitated.

The invention discloses an intelligent teacup control system and method. The system comprises an intelligent teacup assembly and a mobile control end. The intelligent teacup assembly is composed of ateacup, a tea filter and a cup filter. The teacup is composed of a cup cover and a cup body. An inner container is arranged in a cavity of the cup body. A detecting device is installed on the inner wall of the inner container, and a heating device is installed on the lower side of the inner container. A power supply device and a control device are installed at the bottom of the cavity. An interacting device is installed on the surface of the cup body. The tea filter comprises a tea basket and a long-strip-shaped connecting device. The tea basket is composed of the box cover and the box body. The cup filter comprises a step-type hollow filter net base. A plurality of water inlets running through the cavity in the base are formed in the bottom of the step-type hollow filter net base, and water outlets running through the cavity in the base are formed in one side of the step-type hollow filter net base. The intelligent teacup control system and method are controlled through an artificialintelligent algorithm and meanwhile are equipped with necessary accessories, the tea boiling and tea brewing process can be effectively simplified, and the best tea drinking taste effect is kept for users.

The invention belongs to the field of waste lithium-ion battery recycling, and provides a method for separating and recycling cobalt and nickel from a waste lithium-ion battery. Firstly, a positive electrode material is dismounted from the waste lithium-ion battery, and then is placed in a mixed solution of organic acid and a reducing agent to be soaked, leachate is subjected to extraction operation, a high-nickel solution can be obtained, through washing and reverse extraction segment operation, a high-cobalt solution is obtained, and cobalt and nickel can be recycled from the waste lithium-ion battery. The method for separating and recycling the cobalt and the nickel from the waste lithium-ion battery combines recycling of the waste lithium-ion battery with hydrometallurgy, the organic acid is adopted for acid leaching, the method is more environment-friendly and economic, the method has certain environment benefits and economic benefits in the battery recycling field, the method isefficient and easy to operate, safe, reliable and small in secondary pollution, the secondary pollution in the traditional process can be avoided, recycling cost is saved, and efficient recycling of resources is achieved.

The invention relates to an oil casing pipe communicating device for a separate-layer fracturing string. The upper end of a sliding sleeve is propped against a shoulder inside a connector, the sliding sleeve is sleeved with a spring, the upper end surface of the spring is supported on an outer shoulder of the sliding sleeve, a valve core is mounted in the middle of the bottom of the sliding sleeve, a communicating hole is formed in the bottom surface of the sliding sleeve, the upper part of a valve body is connected with the lower part of the connector, the lower end surface of the spring is supported on a shoulder in the valve body, a valve opening is formed in the lower part of the valve body, the valve opening and the valve core cooperate for sealing and can stop a liquid flow from the upper part, the upper part of a hanging basket is connected onto a middle thread of an upper joint, a lower thread of the upper joint is connected with the upper part of a connecting pipe, an annular space is formed between the connecting pipe and the hanging basket, a baffle is arranged at the bottom of the hanging basket, sieve holes are formed in a pipe body, and the lower part of the connecting pipe is connected with the upper part of the connector. After construction is completed, the valve core leaves the valve opening when a string is lifted, the fracturing string is communicated, the liquid flow in the string leaks into a well, so that environmental pollution can be prevented, and operation construction is convenient.

The invention provides a camera device for observing lifting hook hoisting in a tower crane cab, the camera device comprises a mounting assembly and a tower crane body, the tower crane body comprises a rectangular plate and a cab shell, and the mounting assembly comprises a mounting groove, a fixed rod, a movable rod, a ball, a first spring, a first inclined rod, a groove, a positioning rod, a movable plate and a second spring. An electric telescopic rod drives a moving plate to move, the moving plate drives a moving rod to slide on a fixed rod through a first inclined rod, the moving rod drives a ball to be separated from a clamping groove, a connecting plate drives a camera to move, and the camera drives a signal transmitter to move, so that surface dust cleaning and maintenance of the camera are facilitated. The motor drives the screw rod to rotate, the screw rod drives the transverse plate to move downwards, the transverse plate drives the rectangular block to slide on the corresponding square rod, the rectangular block moves and rotates through the second inclined rod, the second inclined rod drives the concentric-square-shaped plate to rotate on the displayer, the concentric-square-shaped plate drives the screen to incline, and the purpose that the screen is convenient to maintain is achieved.

The invention discloses a roof beam reinforcing mechanism. The roof beam reinforcing mechanism comprises an I-shaped beam, and a main beam is arranged at the top of the I-shaped beam. Positioning grooves are formed in the two sides of the bottom of the I-shaped beam. Positioning blocks are arranged at the tops of inner cavities of the positioning grooves. The bottoms of the positioning blocks arefixedly connected with supporting rods, and reinforcing assemblies are arranged on the left sides of the supporting rods. According to the roof beam reinforcing mechanism, by means of the mutual cooperation of the I-shaped beam, the main beam, the positioning grooves, the positioning blocks, the supporting rods, the reinforcing assemblies, an auxiliary assembly, a first movable block, a reinforcing rod, a supporting block and a second movable block, the advantage of being good in stabilizing effect is achieved, and the problem that an existing roof beam reinforcing mechanism is poor in stabilizing effect is solved; reduction of the roof beam stabilizing performance is avoided, collapse of a roof beam after long-time use is avoided, and safety accidents are avoided; and a fixing mechanism is simple in structure and convenient to assemble, time and labor are saved, the work intensity is reduced, and the needs of a user can be met.