45results about How to "Realize chain control" patented technology

The invention discloses a method which applies in a PLC control system to implement calcium spraying and desulfurization inside a circulating fluidized bed boiler, comprising the steps that outsourcing desulfurizer is transported and stored; a star unloader is used for feeding, a solid flowmeter is used for measuring, and a helicoidal pump is used for transporting; powder lot is blown into the boiler for calcination and desulfurization by a lobe fan; a flue gas SO2 sampling device is arranged on a chimney, the concentration value of SO2 which is measured by a monitor is uploaded to the monitoring network of environment protecting department in a wireless way by a data collecting instrument, at the same time, the concentration value of SO2 is transmitted to the PLC control system by the on-line monitor of the SO2; the frequency conversion rotating speed of a motor of the unloader in controlled by the PLC, so that the desulfurizer can be automatically added; wherein, the instantaneous and integrated flow of the solid flowmeter is transmitted to the monitoring network of environment protecting department by the PLC for being referred in real time. The method realizes the automatic control of a desulfurization system and on-line monitoring of the usage of limestone powder in real time, at the same time, the desulfurization efficiency is improved, thus remarkably saving the usage of limestone powder, reducing the running cost, and simultaneously lightening the labor intensity of operating staffs.

An accident waste water treatment and collection system belongs to the technical field of waste water treatment devices and comprises a rain water pipe network and a municipal rain water pipe network connected therewith through a pipeline. A first control valve mechanism is arranged between the rain water pipe network and the municipal rain water pipe network in a matched manner; the rain water pipe network is connected with an accident emergency pool, a waste water treatment station, and a purified water collection pool sequentially; a second control valve mechanism is arranged between the rain water pipe network and the accident emergency pool; and the accident emergency pool comprises a collecting well, an oil isolation and sedimentation pool, and an accident collection pool. After adopting the above technology, the waste water receives emergency treatment before entering into a waste water treatment station, and explosive liquid is separated to prevent explosion and other hazards.The accident waste water can be completely collected, and after primary treatment, most water-insoluble hazardous chemicals are separated, so the whole system can realize linked control and high safety performance, and the accident emergency pool does not need to be buried deep, so the construction investment is reduced.

The invention discloses a dry desulfurization process with automatic control realized based on a monitoring network for environmental protection and a digital meter; wherein, the process comprises the steps that: a gate valve arranged below a bin is opened, and a discharger is started; powder enters an air lock and wind powder mixing device after being metered by a flow meter and then is blown into a boiler by a blower through a closed pipeline; after going through a ,pyrolysis, the powder reacts with SO2; a flue gas monitoring device arranged on a chimney transmits the monitored concentration value of SO2 as an analog quantity output signal to a PLC control system; according to the analog quantity output signal, the rotating speed of an electric motor of the discharger is controlled by the PLC control system to regulate the feeding; the instant flow and accumulated flow value provided by the flow meter arranged on a powder conveying pipeline are uploaded as an analog quantity signal to the PLC control system; on one hand, the instant flow and accumulated flow value function as data storage of the PLC control system, and on the other hand the data are transmitted in real time to an online monitoring network for environment-protection department. In the dry desulfurization process, the environmental-protection department realizes a distant monitoring of the dosage of desulfurizer, thus saving the dosage of limestone powder saved and simultaneously lowering the working intensity of the operating stuff.

The invention discloses an integrated control valve of a logging winch and a logging winch system. Shortcomings of possible overloading of a system and the like due to the deficiency of correlation between action control of a hydraulic circuit of an existing logging winch and braking action control of a parking and braking circuit in a braking circuit are overcome. An electromagnetic reversing valve is arranged in a control circuit of a volumetric speed regulating circuit of a hydraulic circuit of the logging winch system, a pressure relay is arranged in a parking and braking circuit of a braking circuit, and correlation between the hydraulic circuit and the parking and braking circuit is built. When the pressure of the parking and braking circuit is lost and automatic braking is caused during operation of the winch, the pressure relay is closed, control electricity of the electromagnetic reversing valve in the control circuit of the volumetric speed regulating circuit is switched on, pressure oil sources of a linkage manual reducing valve and a proportional reducing valve are cut off after reversing operation of the electromagnetic reversing valve, pressure oil outputted by each pressure oil source is unloaded, and accordingly the shortcoming of overloading of the system due to parking and braking actions of the hydraulic circuit is effectively overcome.

The invention discloses an analog and digital signal acquisition and interlocking control device and belongs to the technical field of signal acquisition and control. The analog and digital signal acquisition and interlocking control device is used for solving the problems that an existing analog and digital signal acquisition device can only acquire one type of signals and is single in function. An analog and digital signal acquisition circuit of the analog and digital signal acquisition and interlocking control device provides the capacity for acquiring 32 paths of analog signals, and analog signals output by a peripheral are acquired and transmitted to a digital signal processor after being processed; a digital signal acquisition circuit provides the capacity for acquiring 16 paths of digital signals and used for acquiring digital signals output by the peripheral and transmitting the digital signals to the digital signal processor after processing the digital signals; the digital signal processor judges the current state of the external device and outputs a control signal to a relay unit, and the relay unit has on-off control over the external device through at most eight paths of relays; the digital signal processor simultaneously acquires the state signals of the relays of the relay unit. The device is used for acquiring the analog and digital signals and having interlocking control over the external device.

The invention discloses a controlling system of steam injection boiler gas leakage and boiler safe operation. The controlling system of the steam injection boiler gas leakage and the boiler safe operation comprises a main gas sensor, an ignition gas sensor, a furnace gas sensor, a scene gas programmable logic controller (PLC) controlling cabinet, a scene boiler parameter PLC controlling cabinet and an upper computer. The main gas sensor is arranged in a main gas circuit. The ignition gas sensor is arranged in an ignition gas circuit. The furnace gas sensor is arranged in the steam injection boiler furnace. A main gas circuit simulated electric current, an ignition gas circuit simulated electric current and a furnace simulated electric current are converted to a digital electric current signal by the scene PLC controlling cabinet and are transmitted to the upper machine. According to the controlling system of the steam injection boiler gas leakage and the boiler safe operation, interlocking controlling of gas detection and the boiler operation is achieved, namely the boiler is not permitted to start and operate and ignite under the condition that the natural gas leaks or the breakdown is not excluded. The boiler controlling hysteresis and the coupling are eliminated by taking advantage of the sensor controlling at the same time, thus controlling precision is improved.

The invention discloses an electric valve control device capable of realizing intelligent control, which belongs to the technical field of automation control. One end of the auxiliary contacts of an AC contactor, a thermal relay and a travel switch is respectively connected on different switching value remote-signalling input terminals of an intelligent motor protection controller, a change-over switch is arranged between a stop button and the A phase of a power supply, a first terminal and a second terminal of the change-over switch are connected with the A phase of the power supply, a fourth terminal of the change-over switch is connected with one end of the stop button, the second terminal of the change-over switch is connected with one path of switching value remote-signalling input terminal of the intelligent motor protection controller and an output power supply control terminal, and a signal lamp of the intelligent motor protection controller is connected with a start button. The control of an electric valve realizes remote control and local control, and a control signal and a running signal of the valve can be transmitted by a communication mode, so that the valve can realize electric linkage control, and the running state of the valve can be monitored on an upper computer.

The invention discloses an intelligent mixing device. The intelligent blending device comprises a pellet material blending system (A), an intelligent mixing system (C) and a material conveying belt (B) mounted between the blending system (A) and the intelligent mixing system (C), and is characterized in that the intelligent mixing system (C) comprises a mixing degree detecting instrument (namely,a pellet material mixing degree detector) (C1), a strong mixing control cabinet (C2) and a powerful mixing machine (C3); the mixing degree detecting instrument (C1) is arranged to a position near an outlet of the powerful mixing machine (C3); the mixing degree detecting instrument (C1) is electrically connected with the strong mixing control cabinet (C2); the strong mixing control cabinet (C2) iselectrically connected with the powerful mixing machine (C3); the strong mixing control cabinet (C2) is electrically connected with the blending system (A). The intelligent mixing device can detect the mixing degree indexes in real time and feed back the indexes to a powerful mixing machine control system and the blending system, so as to realize interlocking control, is based on the premise of guaranteeing the fresh pellet quality, reduces energy, equipment and bentonite consumption, and reduces the production cost.

The invention provides a programlock, an interlocking system including the same and a controlling method thereof. A positioningcomponent, a state feedback unit and a lock component are fixed into a lock body, and a lock rod is arranged in the lock body in apenetrating mode. A lock core is arranged in the lock body, the positioning component is arranged on the outer periphery of the lock core, oneend of the lock component can penetrate through the side surface of the positioning component, and a first positioning groove which corresponds to the position of the lock component is formed in the side surface of the lock core. Unlocking and locking of the programlock are achieved through the rotation of the lock core, and the lock core drives the lock rod to extend and retract at the same time.In the rotation process of the lock core, the lock component abuts against the side surface of the lock core, and the lock component is clamped intothe first positioning groove when the lock core rotates in place, so that positioning of the unlock position or the lock position of the programlock is realized. While the unlock position or the lock position of the programlock is positioned, the state feedback unit outputs unlocking or locking indication signals of the programlock. The programlock,the interlocking system including the same and the controlling method thereof can solve the technical problems thata traditional programlockhas no state feedback, has a complex operating process, requiresprofessionaloperating staff to memorize processes repeatedly, and has low operating efficiency.

A hydraulic type cantilever grain delivery machine comprises a slewing bearing arranged on a discharge opening in the bottom of a silo and a hydraulic rotary drive device matched with the slewing bearing, a main shaft base frame is arranged on a rotating plate of the slewing bearing, a cantilever screw conveying shaft is installed through the main shaft base frame, a discharge hopper is arranged under a fixed ring of the slewing bearing, a hydraulic motor is arranged at the lower part of the discharge hopper and is connected to a worm through a right-angle reversing and speed-reducing machine and a universal coupling, the worm is vertically installed on the main shaft base frame, and a worm wheel meshed with the worm is arranged on the cantilever screw conveying shaft. According to the machine, the full-hydraulic drive structure is adopted, the advantages of hydraulic drive are given full play to, two power sources for revolution and autorotation of the cantilever screw conveying shaft are integrated, a hydraulic motor is externally and fixedly installed, and therefore the work performance and the efficiency of the grain delivery machine can be effectively improved, the structure can be simplified, the manufacturing cost can be lowered, the safety can be guaranteed, and pollution to delivered material can be avoided.

The invention discloses a linear cutter device for a catalyst extruder. The linear cutter device comprises a frame, cutters and a cutter driving device. The frame is installed on the catalyst extruder, a catalyst conveying channel is arranged in the frame, and catalysts extruded by the catalyst extruder can enter the catalyst conveying channel conveniently. The cutters are movably arranged in the frame. The cutter driving device is connected with the cutters in a driving mode and can drive the cutters to move so as to cut the catalysts in the catalyst conveying channel. According to the linear cutter device, the catalysts extruded by the catalyst extruder can be well cut, the cutting efficiency can be improved, and automation realization of the catalyst extruder is promoted.

The present invention discloses a locking device of a 90 degrees rotary valve for locking a ball valve and a disc valve to an open or close position. When being used, the locking device fixes a lock body with a valve body, a drive body in the lock body is fixed with a valve spindle, and the lock body is mounted with two symmetric lock devices. The rotary valve can be opened or closed only by inserting or drawing a key. By the design of the key and a key slot, the rotary valves adjacent in open and close order can be controlled in real time, that is, only the key drawn after a former order valve is opened can be used to open a later order rotary valve, so the interconnected control for all rotary valves in the system can be realized; so the wrong operation or artificial destroy can be avoided. The invention can be applied to the field of petroleum and chemical industry and can improve the reliability for the system.

The invention discloses a constant-speed water supply pump pressure regulating device and an operation method. The device comprises a water supply pipeline, a starting water supply pipeline and a deaerator, wherein the deaerator is arranged at the starting ends of the water supply pipeline and the starting water supply pipeline, high-pressure heaters III are arranged at the tail ends of the watersupply pipeline and the starting water supply pipeline, a first electric gate valve, a steam-driven water feeding pump booster pump, a steam-driven water feeding pump, a first pressure transmitter, afirst temperature transmitter and a second electric gate valve are sequentially arranged on the water supply pipeline in the medium flow direction, and a third electric gate valve, an electric constant-speed water feeding pump, a second pressure transmitter, a second temperature transmitter, a fourth electric gate valve and a first pneumatic control valve are sequentially arranged on the startingwater supply pipeline in the medium flow direction. According to the device, the problem that the lift of an electric constant-speed pump is too high can be solved, the pressure of the starting watersupply pipeline can be adjusted, the pressure of a main water supply pipeline can be adjusted, the steam-driven water supply pump can be smoothly connected to a grid, and normal operation of a power plant is not affected.

The invention relates to a novel remote control method of a pneumatic air valve. The method is characterized in that an air bottle is divided into two parts which are correspondingly connected to a manual stop valve and an electric stop valve, wherein the manual stop valve communicates with an air inlet of a three-position five-way hand plate valve; two air outlets of the three-position five-way hand plate valve are correspondingly connected to the air inlet of a first shuttle valve and the air inlet of a second shuttle valve; two air outlets of a three-position five-way solenoid valve are correspondingly connected to another air inlet of the first shuttle valve and another air inlet of the second shuttle valve; the air outlet of the first shuttle valve is divided into two parts which are correspondingly connected to the air inlet of a locking shuttle valve and a first throttling valve; the air outlet of the second shuttle valve is divided into two parts which are correspondingly connected to another air inlet of the locking shuttle valve and a second throttling valve; the first throttling valve communicates with an inner cavity at one end of piston of a locking cylinder, and the second throttling valve communicates with the inner cavity at the other end of the piston of the locking cylinder; the air outlet of the locking shuttle valve communicates with a locking air inlet of the locking cylinder through a two-position two-way pneumatic valve; a cylinder rod of the locking cylinder is used for driving a pneumatic air valve plate through a swinging arm.

The invention relates to a data storage method and device. The method comprises steps of determining a plurality of storage sub-blocks in a storage space according to the size of a code block (CB) ofa hybrid automatic repeat request (HARQ) process, the storage sub-blocks having sub-block indication identifiers, the sub-block indication identifiers being used for indicating a next storage sub-block to which a current storage sub-block points; and storing the CB of the HARQ process to the plurality of storage sub-blocks. By means of the method, chain control over the storage sub-blocks can be achieved, so that storage resources of the storage space can be managed and allocated conveniently and flexibly, storage fragments can be effectively reduced, and power consumption is reduced.

The invention discloses a multifunctional refrigerating dehumidifier, which comprises a three-layer machine body (5), wherein the machine body (5) is provided with an upper door plate (2), an air inlet door plate (19) and a lower door plate (18) ; the upper layer of the machine body (5) is provided with a fan (6), an air outlet of the fan (6) is communicated with a machine body air outlet positioned on the top surface of the machine body (5), the upper door plate (2) is provided with a display operation screen (3), and the top of the machine body (5) is provided with a wireless WIFI module (1); the middle layer of the machine body (5) is sequentially provided with a primary filter screen (12), an evaporator (11), a condenser (10), a sterilization module (9) and a purification module (8) in the air inlet direction of the air inlet door plate (19) ; The lower layer of the machine body (5) is provided with a compressor (13), an expansion mechanism (14), a drying filter (15), a liquid storage tank (16) and an electric appliance control cabinet (17). The multifunctional freezing dehumidifier has reasonable design and good practical application and popularization value.

The invention relates to an automatic chemical tablet material transporting, gathering and distributing device and belongs to the technical field of chemical material transportation equipment. According to the technical scheme, a disk feeder (1) is provided with a discharging hopper A (2), the discharging hopper A (2) is provided with a correlation optical grating A (3), a screw feeder (5) is provided with an input hopper and a discharging hopper B (6), the discharging hopper B (6) of the screw feeder (5) is provided with a correlation optical grating B (7), a chained conveying bucket (8) is obliquely arranged, the lower end of the chained conveying bucket (8) is a receiving end, the higher end of the chained conveying bucket (8) is a discharging end, the discharging hopper B (6) of the screw feeder (5) coordinates with the receiving end of the chained conveying bucket (8), the discharging end of the chained conveying bucket (8) is provided with a material collection barrel (11), and the material collection barrel (11) is arranged on a weighing rollgang (12). The automatic chemical tablet material transporting, gathering and distributing device has the beneficial effects that automatic gathering, transporting and weighing of the material can be achieved, and the working efficiency is improved.

The invention relates to a novel pneumatic air valve remote control device. An air bottle is divided into two paths which are connected with a manual stop valve and an electric stop valve respectively. The manual stop valve is communicated with an air inlet of a three-position five-way hand plate valve, two air outlets of the three-position five-way hand plate valve are connected with one air inlet of a first shuttle valve and one air inlet of a second shuttle valve respectively, and two air outlets of a three-position five-way electromagnetic valve are connected with the other air inlet of the first shuttle valve and the other air inlet of the second shuttle valve respectively; an air outlet of the first shuttle valve is divided into two paths which are connected with one air inlet of a locking shuttle valve and a first throttling valve respectively; an air outlet of the second shuttle valve is divided into two paths which are connected with the other air inlet of the locking shuttle valve and a second throttling valve; the first throttling valve is communicated with an inner cavity of one end of a piston of a locking air cylinder; the second throttling valve is communicated with an inner cavity of the other end of the piston of the locking air cylinder; an air outlet of the locking shuttle valve is communicated with a locking air inlet of the locking air cylinder through a two-position three-way pneumatic control valve; an air cylinder rod of the locking air cylinder drives a pneumatic air valve plate through a swing arm.