1620 results about "Control room" patented technology

The invention relates to the technical field of air conditioners, particularly provides an air conditioner control method and an air conditioner, and aims to solve the problem that in the prior art, when the indoor environment temperature of an air conditioner is close to the set temperature, the indoor environment temperature cannot be accurately controlled. In order to achieve the purpose, the control method of the air conditioner comprises the steps that an indoor environment temperature value is obtained at intervals of a set duration value; determining a first temperature difference value according to the operation mode of the air conditioner, the set temperature value and the indoor environment temperature value; according to the operation mode, the current indoor environment temperature value and the last indoor environment temperature value, a second temperature difference value is determined; and based on the first temperature difference value and the second temperature difference value, the numerical value of at least one of the compressor frequency, the outdoor fan rotating speed and the indoor fan rotating speed is adjusted. The first temperature difference value and the second temperature difference value are comprehensively considered, the frequency of the compressor, the rotating speed of the outdoor fan and the rotating speed of the indoor fan are adjusted, the temperature control accuracy is improved, meanwhile, repeated temperature change is avoided, and energy consumption is reduced.

The utility model relates to an anti-collision system of a bucket wheel machine, which can improve the working efficiency of the bucket wheel machine and ensure safe and stable operation of equipment. The anti-collision system of the bucket wheel machine comprises a running posture sensing module, an obstacle detection module, a bucket wheel machine distance detection module and a controller, wherein the running posture sensing module, the obstacle detection module and the bucket wheel machine distance detection module are all in communication connection with the controller; the running attitude sensing module, the obstacle detection module and the bucket wheel machine distance detection module are respectively arranged in a preset area of a bucket wheel machine to be detected; and the controller is arranged in the control room.

The invention belongs to the technical field of coal mine shaft maintenance emergency communication, and particularly discloses a shaft maintenance communication device and method based on an electromagnetic coupling principle. The device comprises an elevator controller, a car room main controller, a signal transmission medium and two pairs of electromagnetic coupling coils. The elevator controller is arranged in an elevator cage, and the car room main controller is arranged in a ground winch control room; a pair of electromagnetic coupling coils is respectively arranged at the top of a skip bucket of the elevator and below a guide wheel through a lasso structure and is respectively used for sending and receiving signals. A closed-loop lifting link where a steel wire rope of the elevator is located is used as a signal transmission medium, and bidirectional long-distance transmission of signals is achieved between an elevator controller and a car room main controller based on the electromagnetic coupling communication principle. A maintainer can actively lock the hoister through the hoister controller, accidental starting of the hoister caused by misoperation of a winch control room is avoided, and after locking is released, a winch driver can be informed of starting and stopping the hoister through voice and dotting control signals.

A real-time monitoring device for a polar nearshore marine environment is provided, including a cabin body, a main control cabin and a scraping structure, an outer wall of the cabin body is provided with collecting holes, an electric motor is arranged in the main control cabin, the electric motor provides power through a first rotating rod penetrating a side wall of the main control cabin. The scraping structure includes a power structure, a scraper and a collecting bucket, the scraper is arranged outside the cabin body and is fixedly provided with the collecting bucket. The power structure is connected to the first rotating rod and drives the scraper and the collecting bucket to rotate relative to the cabin body, the collecting bucket collects the floating objects on the outer wall and around the cabin body, and the floating objects enter the cabin body through the collecting holes.

The invention relates to the technical field of robot inspection, in particular to an inspection method based on an inspection robot and a control system. The method has the beneficial effects that when the inspection robot recognizes that the to-be-detected equipment is abnormal under the offline sensing model, the help seeking instruction is generated according to the grade parameter of the abnormal condition, the optimal network signal coverage area is screened, the inspection robot is guided to move towards the optimal network signal coverage area, and the network signal coverage area is optimized. After a network signal coverage area is reached, a warning signal is sent to a cloud platform; after a response instruction of the cloud platform is received, the inspection robot continues to execute the inspection task on the to-be-detected equipment which is not detected according to the preset inspection path, the problem that the abnormal condition of the equipment cannot be fed back in time in an offline state is solved, and the inspection robot can make a judgment autonomously and move to a network signal coverage area in time; and the help-seeking instruction is sent out, so that a control room can make a correct decision instruction in time, and equipment loss is prevented from being increased.

The invention relates to a coal mine screening intelligent regulation and control system based on image recognition and radar detection, an image and radar data acquisition device support and a coal mine screening intelligent regulation and control method based on image recognition and radar detection. The system comprises a remote monitoring module, a sieve plate state early warning module and a sundry monitoring and material flux monitoring module, and the remote monitoring module is used for collecting sieve surface coal flow image data and sieve surface coal flow space data and transmitting the sieve surface coal flow image data and the sieve surface coal flow space data to a central control room; the sieve plate state early warning module is used for analyzing the motion state of the sieve surface coal flow based on the image data of the sieve surface coal flow and the spatial data of the sieve surface coal flow and generating early warning information of sieve plate abnormity; and the impurity monitoring and material flux monitoring module is used for identifying impurities in the coal flow according to the screen surface coal flow image data, monitoring the material flux in real time and adjusting the frequency of the coal feeder. By adopting the system, real-time monitoring, intelligent early warning and automatic adjustment in the screening process can be realized.

The utility model relates to the technical field of all-steel-ball type electromagnetic multi-way valves of harvesters, and discloses an all-steel-ball type electromagnetic multi-way valve of a harvester, which comprises a composite hydraulic control plunger, the composite hydraulic control plunger comprises a second steel needle, a sealing element and a second guide column, the sealing element comprises a third steel ball and a second ball seat, and the second steel needle is connected with the second steel needle. A second ball seat is connected into the second guide column, one end of the second ball seat is connected with a third steel ball, one end of a second steel needle is connected with the third steel ball, the third steel ball is used for blocking the opening A1, the other end of the second steel needle is connected with a combined hydraulic control plunger, the combined hydraulic control plunger is slidably connected into the control chamber f, and the oil inlet chamber h is communicated with the oil return chamber g. The opening A1, the cavity j, the oil inlet chamber h, the oil return chamber g and the oil return channel T1 are sequentially communicated. According to the all-steel ball type electromagnetic multi-way valve of the harvester, all reversing valves are composed of double-ball type pilot valves and steel ball type hydraulic control one-way valves. The anti-pollution capacity is extremely high, and the reliability is high.

Systems and apparatuses include a container for a generator set. The container includes a housing including a cooling room structured to support a radiator and a radiator fan within the housing, an exhaust room structured to support an aftertreatment system, an engine room structured to contain the engine and the alternator within the housing, an air intake system positioned adjacent the engine room, and a control room structured to support control equipment for the generator set. The exhaust room may further support after treatment components including a muffler and an exhaust pipe.

The invention discloses a water gushing tunnel section TBM construction method which comprises the following steps that an advanced geological forecast system is arranged in front of a TBM cutterhead and is transmitted to a central processing unit of a TBM main control room; according to rock mass fracture development degree data and real-time water pressure data obtained by an advanced geological forecast system, a water guide groove is formed in the top of a TBM shield; in the TBM propelling process, an advanced grouting system is started; after grouting operation is completed, the grouting effect is verified through a permeability coefficient detector arranged behind the cutterhead; and the drainage flow of the water guide groove is continuously monitored in the tunneling process. According to the method, accurate sensing of geological information, efficient discharge of gushing water, effective reinforcement of surrounding rock and automation of the construction process are realized through advanced geological forecast, targeted drainage system design, accurate grouting control and intelligent emergency response which are combined by multiple means, the risk of water gushing is reduced, and the construction safety and efficiency are guaranteed.

The invention relates to the technical field of metallurgical furnace charge conveying and control, and discloses a top-blown furnace multi-channel supersonic jet type feeding control method and system.The method comprises the steps that flow distribution in a nozzle is achieved through a piezoelectric ceramic high-speed valve installed at a pipeline inlet, and a nozzle servo motor is controlled at the top of a spray gun to adjust the spray angle of the spray gun; the feeding speed, pressure and temperature are monitored in real time through a pressure sensor and a flow sensor arranged in an inlet area of the pipeline and an infrared thermometer mounted at the top of the furnace; the carrier gas flow, the nozzle opening degree and the spraying angle are dynamically adjusted through control of the PLC executing mechanism, and collaborative optimization of the material flow vector, the flow field in the hearth and the heat and mass transfer process is achieved. The system comprises a spray gun, a piezoelectric ceramic high-speed valve, a flow sensor, an infrared thermometer, a nozzle control servo motor, a temperature measurement control small servo motor and a control room. The comprehensive operation efficiency of energy density distribution optimization, reaction efficiency improvement and energy consumption index reduction of the molten pool reactor is finally realized.

The utility model provides an anti-inclination alarm, which solves the problems that a conventional angle inclination alarm is complex in structure and a switch is not easy to control, and adopts the technical scheme that a wireless signal transmitting module is connected with an angle inclination switch; the angle inclination switch device, the wireless signal transmitting module, the power supply and the power supply switch are connected in series to form an alarm switch circuit, the angle inclination switch device is a mercury switch, the mercury switch is obliquely arranged in a control room which is synchronously steered with a hoisting equipment suspension arm, and a fixed electrode of the mercury switch is arranged at a high-end position where the mercury switch is placed. And the front end of the suspension arm is provided with a groove. The device is simple in structure and suitable for being conveniently installed on engineering equipment for use, reliable and sensitive safety early warning is provided, and the equipment safety is improved.

The invention relates to a shipborne weather radar integrated platform and an installation method, and belongs to the technical field of shipborne radars. A radar system is disassembled into a platform unit, a power cabinet unit and a display control terminal unit through a separated layout; wherein the platform unit adopts a heightened cylinder structure to support a ball cover and an internal phased array antenna, and is combined with a two-degree-of-freedom stable platform to compensate the shaking of a ship body in real time; the power cabinet sinks to a middle-layer deck cabin; the display control terminal is arranged in front of a forecastle deck central control room; in addition, aiming at a closed ball cover environment, an air conditioner internal unit is arranged in a direct blowing device in the cover, an external unit is moved to a lower deck, and accurate temperature and humidity control is realized by matching with a dehumidifier and double-path condensate water discharge. According to the invention, while the radar performance is satisfied, the light weight of the upper part, the system reliability and the maintenance convenience are realized.

The invention relates to the field of electric drive rotation control, in particular to an electric drive rotation system, a control method and engineering machinery. The electrically-driven rotary system comprises a frame; the rotary table is mounted on the frame through a rotary support, and the control cabin and the rotary table are connected and synchronously rotate; the rotary motor is used for driving the rotary table to rotate relative to the frame through the rotary speed reducer and the rotary support, and the rotary motor is in communication connection with the motor controller; an angle sensor configured to detect a rotation angle of the turntable relative to the frame; the vehicle-mounted controller is in communication connection with the motor controller, a rotary handle in the control room and the angle sensor; the equivalent rotating speed capable of representing user perception in the control room is obtained through the rotating angle, collected by the angle sensor, of the rotary table, and closed-loop control over the speed of the electric rotary system is achieved with the equivalent rotating speed, the request rotating speed of the rotary handle and the target rotating speed of the rotary motor as control parameters. And rotation shaking caused by a gear meshing clearance is reduced.

The invention discloses a building cold and heat balance temperature control system and method based on a neural network control algorithm. The system comprises a meteorological monitoring module, a temperature control system, a temperature sensor, a chilled water circulation system and a heat source complementation system. The method comprises the steps that external environment parameters are monitored in real time, the internal temperature condition of a building is fed back to a temperature control system through a temperature sensor, and coordinated control is conducted on the temperature sensor and a fan coil; the temperature control system adjusts the cold and hot water flow or the cold and heat quantity provided by the fan coil to accurately control the indoor temperature; and constructing a temperature balance model, predicting and optimizing the cold and hot demands of the building through a neural network control algorithm, and providing a regulation and control strategy for a chilled water circulation system and a heat source complementation system. According to the invention, the cold and hot demands of the building are accurately predicted and optimized, the problems of response lag and insufficient control precision of a traditional temperature control system are reduced, and the consistency and stability of temperature regulation and control are improved.

The invention relates to the technical field of tunnel construction equipment, and discloses an annular scanning complete polarization ground penetrating radar system carried on a TBM (Tunnel Boring Machine), and the system comprises a control unit which is disposed in a TBM control room and is used for transmitting a control signal and receiving and storing measurement data; the fully-polarized ground penetrating radar antenna array is mounted in a gap between cutter spokes and is used for transmitting and receiving electromagnetic waves; each group comprises two transmitting antennas and two receiving antennas; the two transmitting antennas transmit horizontally polarized electromagnetic waves and vertically polarized electromagnetic waves respectively, the two receiving antennas receive horizontally polarized echoes and vertically polarized echoes respectively, and a complete 2 * 2 scattering matrix of a front annular area is obtained by rotating the fully polarized antenna array through the cutterhead to complete a measurement period. The multi-polarization radar antenna is adopted, the scattering characteristic information of the target body can be comprehensively obtained by transmitting and receiving electromagnetic wave signals in multiple polarization states, and more comprehensive information can be provided for target recognition under complex geological conditions.

The present invention discloses a tower crane hoisting path guidance system for steel tower segments. The tower crane system includes a control room in which a controller is installed and connected to a central server. The steel tower includes an installed steel tower segment and a steel tower segment to be installed. A camera is installed on a workbench on the installed steel tower segment. A mark is made at the center of the cross section corresponding to the steel tower segment to be installed and the installed steel tower segment. The camera is connected to the central server. The central server calculates the distance between the installed steel tower and the uninstalled steel tower, and the distance between two marked points. The central server transmits the identified contour and the calculated distance back to the controller, and the controller then gives corresponding tower crane path instructions. The present invention provides a path guidance method that can effectively provide tower crane operation instructions for the steel tower docking process, avoid the problems of excessive personnel requirements and inconvenient communication in traditional methods, improve construction efficiency, and ensure construction safety.

The application discloses a kind of transformer substation in-station instrument automatic meter reading method and system, it is related to power station inspection technical field, including: meter reading work is completed by transformer substation in-station instrument meter reading software, including automatic meter reading module and meter reading photo analysis module;Automatic meter reading module is used to use mobile terminal and main control room computer to establish network communication, obtains meter reading photo by photographing field instrument to mobile terminal, and is returned to main control room computer, is downloaded and is transmitted to meter reading photo analysis module calculation;Meter reading photo analysis module is used to initialize meter reading photo, position target and calculate the instrument contained in meter reading photo, extract the outline of target, identify the edge coordinates of instrument pointer by contour matching mode, calculate the instrument reading pointed by instrument pointer by looking up black and white boundary in binary image.The application can replace artificial field meter reading, automatically obtain the reading of transformer substation instrument by field photo identification, generates instrument data report.

The invention relates to an air conditioner, a control method of the air conditioner and a computer program product, and the control method comprises the steps that the first weight of an outdoor unit of the air conditioner is obtained in response to the air conditioner entering a defrosting mode; when the defrosting mode runs for the first preset duration, the second weight of the outdoor unit is obtained; and according to the first weight and the second weight, the on-off state of a heating device of a water pan of the outdoor unit is controlled. According to the control method, the frost accumulation condition in the water pan can be judged through the first weight and the second weight, and then whether the heating device is started or not can be controlled according to the frost accumulation condition. The heating device can be prevented from being started under the condition that no frost exists in the water pan, electric energy waste is reduced, air conditioner energy consumption is reduced, and the purposes of energy conservation and emission reduction are achieved.

The utility model discloses an on-line monitoring system for safe operation of a storage tank floating roof, which relates to the technical field of inner floating roof storage tanks and comprises a storage tank body, a tank roof and an inner floating disc, the top of the storage tank body is connected with the tank roof, the inner floating disc is arranged in the storage tank body, a tank roof inspection hole is arranged on the tank roof, and the inner floating disc is connected with the tank roof inspection hole. A plurality of groups of fixed connecting pipes are arranged at the top of the tank top, the fixed connecting pipes are communicated with the interior of the storage tank body, the fixed connecting pipes are circumferentially arranged at equal intervals, monitoring equipment is arranged in the fixed connecting pipes, the monitoring equipment is further connected with the inner floating disc, and the monitoring equipment is used for monitoring the running state of the inner floating disc. The operation state of the inner floating disc is monitored through the level meter and the reflecting plate, whether emission of VOCs in the storage tank body exceeds the standard or not is monitored through the VOCs detection sensor, monitoring data are transmitted to a control room, an alarm is given out when the monitored data exceed the standard, and hidden danger can be found in time, and accident expansion is avoided.

The utility model discloses a pellet chain intelligent production line control system, which comprises a material preparation control system, a pelletizing control system, a roasting control system and a finished pellet conveying control system which are arranged on a production site, and a master control system which is arranged in a central control room and is connected with the systems, the material preparation control system comprises a material distribution control system, a drying control system and a material distribution control system; the pelletizing control system comprises a disc pelletizing control system and a screening control system; the roasting control system comprises a chain grate control system, a rotary kiln control system, a receiving hopper control system and an annular cooler control system; the finished product ball conveying control system comprises online moisture detection devices and finished product ball online compression resistance detection equipment which are arranged along each finished product ball conveying belt at intervals; the pellet chain intelligent production line control system is matched with a corresponding intelligent control system based on a flow type production device required by pellet production, so that batch production of high-yield pellets is realized while intelligent pellet production is realized.

The invention relates to the technical field of composite armored cables, and discloses an intelligent sensing type photoelectric composite armored cable for deep-sea mining equipment, which comprises a cable core formed by twisting a plurality of power cable core conductors, an optical fiber communication unit, a medium conveying pipeline and an intelligent sensing unit, and an outer coating layer, tin-plated annealed copper wires and high-strength copper foil wires are arranged in a conductor of the power cable core, an insulation shielding layer is wrapped outside the conductor, the intelligent sensing unit integrates a plurality of optical fibers and optical fiber grating sensors, a loose structure is arranged outside the intelligent sensing unit, one intelligent sensing unit is used for monitoring strain distribution, the other intelligent sensing unit is used for monitoring temperature distribution, and other redundant optical fibers are used as redundant backups. A certain length of grid region interval is preset, distributed measurement along the length of the cable is realized, a sensing optical fiber in the intelligent sensing unit is connected to an optical fiber demodulator of a deck control room, a software system displays strain, temperature, vibration and form data of each point of the cable in real time, an alarm threshold value is set, and the structure is highly integrated and can adapt to a deepwater environment.

The invention relates to the field of automatic equipment for insulation board production and manufacturing, and discloses an automatic stacking device for insulation board production and manufacturing, which comprises a grabbing manipulator, a control chamber is fixedly mounted at the driving end of the grabbing manipulator, and the bottom end of the control chamber is fixedly mounted in the middle of the top end of a square channel steel bracket; adjusting rods are movably installed at the four edges of the bottom end of the square channel steel support through limiting shaft sleeves, pneumatic suction cups are fixedly installed at the tail ends of the adjusting rods, a rotating column is movably installed in the control chamber, and a driving bevel gear is fixedly installed at the top end of the rotating column; threaded rods are movably installed on the periphery of the inner side wall of the control chamber, and short shafts are fixedly installed at the inner side ends of the threaded rods. Safety is guaranteed through double adsorption, the adjustable suction cups are matched with multiple sizes, intelligent folding and stable stacking are achieved, synchronous cleaning and strong adsorption can be achieved, the efficiency is improved through the lightweight design, and the safety, adaptation and stability problems of heat preservation plate stacking are comprehensively solved.

The invention discloses an air conditioner, a control method and device of the air conditioner and a computer readable storage medium, and the method comprises the steps that in the operation process of the air conditioner in a refrigeration mode, the outdoor environment temperature is obtained; when the outdoor environment temperature is smaller than or equal to the first temperature threshold value, the maximum allowable frequency of a compressor is determined according to the outdoor environment temperature, and the compressor is controlled to operate within the maximum allowable frequency; when the outdoor environment temperature is larger than a first temperature threshold value and smaller than or equal to a second temperature threshold value, the compressor is controlled to operate according to the preset frequency, the outdoor fan is controlled to operate according to the preset rotating speed, and the opening degree of an outdoor throttling element is adjusted to the preset opening degree, the preset frequency is greater than the maximum allowable frequency corresponding to the first temperature threshold value. According to the control method, the refrigeration effect of the air conditioner in the high-temperature environment can be improved, it is ensured that the air conditioner cannot stop running in the high-temperature environment, the refrigeration requirement of a user is met, and the user experience is improved.

The punching machine for chain machining comprises a control chamber and an installation frame, the installation frame is arranged on the side face of the control chamber, the top of the installation frame is fixedly connected with a frame body, a sliding groove is formed in the top of the installation frame, a sliding plate is embedded in the sliding groove, the top of the sliding plate is connected with a workbench, and a drill hole is formed in the top of the workbench. According to the punching machine for chain machining, the recycling box, a first rubber plate, a second rubber plate, an inserting plate, a cross-shaped clamping plate and other structures are installed on the side face of the control chamber, so that a machined chain can be recycled, and before the chain is machined, the machining efficiency of the chain is improved; when the chain recycling device is used, a cross-shaped clamping plate on the side face of the recycling box is embedded outside a control chamber, then a user inserts inserting plates on the back faces of a first rubber plate and a second rubber plate into the recycling box, in this way, the recycling box can be installed outside the control chamber, and processed chains can be conveniently recycled in a unified mode in the using process.

The invention relates to the technical field of cold-rolled strip steel, and discloses a cold-rolled strip steel first-pass precise parking system, which comprises an operation interface module, which is arranged in a rolling mill main operation room and an entrance cantilever platform, is provided with a trigger button, and is used for generating a delayed parking instruction after a welding seam is separated from an uncoiling machine mandrel; the linear speed calculation module is used for dynamically calculating the inlet real-time linear speed according to the main rolling mill linear speed reference value and the inlet and outlet real-time thickness data; the downtime calculation module is used for generating a downtime variable based on a preset downtime distance and the entrance real-time linear speed; and the TON delay module is used for controlling the rolling mill to execute precise shutdown, so that the error of the distance between the welding seam and the rolling mill roll gap is smaller than 0.2 m. Through the linkage control of the trigger button of the operation interface module and the TON delay module, the shutdown time is accurately calculated by using the real-time linear speed of the inlet and the preset shutdown distance, the yield of the cold-rolled strip steel is improved, the waste of raw materials is effectively reduced, and the production benefit is improved.

The invention discloses an air conditioner control method and device, an air conditioner, a storage medium and a computer program product. The air conditioner comprises an outdoor electronic expansion valve, an indoor electronic expansion valve, a first indoor heat exchanger, a second indoor heat exchanger and an outdoor heat exchanger. The outdoor heat exchanger is connected with the indoor second heat exchanger through the outdoor electronic expansion valve, the indoor first heat exchanger and the indoor electronic expansion valve in sequence; the method comprises the steps that after a constant-temperature dehumidification mode is started, whether dehumidification is started or not is determined according to indoor humidity, indoor target humidity and outdoor temperature; if it is determined that dehumidification is started, the opening degree of an outdoor electronic expansion valve is set to be maximum, the rotating speed of an inner fan is controlled according to the indoor humidity and the indoor target humidity, the rotating speed of an outer fan is controlled according to the indoor temperature, the frequency of a compressor is controlled according to the indoor humidity and the indoor target humidity, and the opening degree of the indoor electronic expansion valve is controlled according to the exhaust temperature. According to the scheme, the room temperature is kept unchanged during dehumidification, the indoor temperature is prevented from being cold but not dry, and the indoor comfort in the dehumidification process is improved.

The invention discloses an inflatable high-voltage switch cabinet with a phase control function, and relates to the technical field of high-voltage switch cabinets, the inflatable high-voltage switch cabinet comprises a switch cabinet body, the switch cabinet body comprises an operation room, a control room, a cable room, a recovery room and a switch room, the control room is connected to the top of the operation room, the cable room is connected to the bottom of the operation room, and the recovery room is connected to the bottom of the switch room. According to the application, the SF6 gas in the switch chamber can be directly and actively recycled into the storage tank through the storage tank in the recycling chamber when the SF6 gas leaks, so that the problem that the SF6 gas is not recycled when the SF6 gas leaks in the switch chamber of the high-voltage switch cabinet is solved, and the safety performance of the high-voltage switch cabinet is improved; the SF6 gas can be liquefied by compressing and then cooling the SF6 gas, so that the problem that the gaseous SF6 gas occupies more storage volume than the liquid SF6 gas when the SF6 gas is directly recovered is solved, the space occupation of the storage tank is reduced, and the recovery rate of the SF6 gas is improved.

The invention discloses a short-stress-path flat rolling mill and a flat steel guide plate for the short-stress-path flat rolling mill. Comprising an up-down adjusting device arranged on a guide beam of the flat rolling mill, a frame; a long shaft hole is formed in the middle of the machine frame, and the machine frame is hinged to a guide beam of the rolling mill through a long shaft penetrating through the long shaft hole. The free end of the up-down adjusting device is hinged to one end of the rack; a carrier roller is mounted at the other end of the rack; lifting of the free end of the up-down adjusting device can drive the rack to swing around the positioning center hole, and lifting of the carrier roller is achieved. The height of the carrier roller can be detected and controlled through the lifting driving device and the detection element of the up-down adjusting device, the opening degree is detected and controlled through the guide plate driving device and the detection element of the opening adjusting device, and rolled pieces with various widths are guided; and the proper opening degree can be adjusted through remote operation in a central control room.

The invention relates to an air source heat pump water system, in particular to a control method of the air source heat pump water system and the air source heat pump water system, and aims to solve the problem that frequent shutdown is easily caused by instantaneous rise of high pressure during heating of an existing air source heat pump water system. In order to achieve the purpose, the control method comprises the steps that in a heating mode, a high-pressure side parameter value is obtained; and when the high-pressure side parameter value is increased in the preset adjusting interval, the frequency of the compressor is controlled to be reduced or unchanged, and the rotating speed of the outdoor fan is controlled to be reduced. When the high-pressure side parameter value falls into the preset adjusting interval and continues to rise, it is proved that the system has the risk that the high-pressure pressure is instantaneously too high, due to the fact that the instantaneous high-pressure pressure duration time is short, the rotating speed of the outdoor fan is controlled to be reduced while the frequency of the compressor is controlled to be forbidden to rise, and the system can be effectively operated while it is guaranteed that the system operates effectively. And instant overhigh pressure of the high pressure can be timely handled, so that frequent shutdown of the system is avoided.

The invention discloses a multifunctional parallel construction trolley which comprises an excavation system, a deslagging system, a walking system, a transportation system, an inverted arch construction system and a control room. The excavation system comprises a plurality of excavators, a plurality of splitting devices and slag baffles; the deslagging system is connected with the excavation system and comprises discharging hoppers located on the two sides of the excavator, a belt conveyor used for transferring and a discharging grab bucket used for discharging. The walking system comprises conveying belt walking wheels located on the belt conveyor and a crawler-type walking device on the truss structure. The transportation system comprises a transportation device located in the truss structure. The inverted arch frame construction system comprises a spraying and mixing mechanical arm and a primary support steel frame assembling and reinforcing steel bar bundling mechanical arm. Supporting, excavation and structure parallel operation in the tunnel are achieved, the efficiency of collaborative operation between procedures is improved, and the number of operators is reduced.