88results about How to "Realize fully automatic control" patented technology

The utility model discloses a full-automatic steel-plastic belt bundling unit for metal ingot stacking, and belongs to the technical field of metal material packaging. The bundling unit comprises a main body frame, a machine head assembly, a tape threading guide groove mechanism, a base, a tape reel mechanism and a tape threading guide groove. The main body frame comprises a floor frame, a cantilever frame and a machine head lifting air cylinder. The machine head assembly comprises a machine head installation frame and a machine head, and the machine head is installed in the machine head installation frame and connected with the lifting air cylinder. And the threading guide groove mechanism is provided with a telescopic guide groove which can face one side of the cantilever frame. The base is mounted at the bottoms of the floor frame and the threading guide groove mechanism, and the coiling mechanism is fixedly mounted in the middle of the floor frame. The belt penetrating guide groove is fixed to the inner side of a cantilever of the cantilever frame and the outer side of the floor frame. And a steel belt sealing guide groove is defined by the belt penetrating guide groove, the machine head assembly and the telescopic guide groove. The bundling unit is reasonable in design, compact in structure, capable of achieving full-automatic control, stable in operation, safe, reliable, low in failure rate and beneficial to improving the bundling work efficiency.

The invention discloses a tight-lock coupler intelligent tensile testing machine and a testing method thereof, and belongs to the technical field of tight-lock coupler test.The tight-lock coupler intelligent tensile testing machine comprises a mounting bottom plate and an electric control cabinet, and a support for supporting a tight-lock coupler to be detected is mounted on the surface of the mounting bottom plate; a tensile connecting frame for connecting the tight-lock coupler is mounted on the surface of the bottom plate on one side of the support, an integrated design of'tensile force detection and visual detection 'is innovatively adopted, mechanical parameter acquisition and visual deformation observation are combined, traditional mechanical data such as tensile force and displacement are obtained, and visual characteristics such as fine deformation and crack initiation are captured; precise synchronization of pulling force application, displacement collection and camera shooting is achieved through the synchronous controller, the real-time corresponding relation of pulling force-displacement-visual deformation is established, the problems that an existing device is single in detection dimension and poor in data relevance are solved, and the potential quality hazard checking capacity and the persuasion of a detection result are improved.

The invention relates to automatic coating equipment and method for a variable-thickness ultra-low-density heat-proof coating, and belongs to the technical field of surface engineering heat protection coatings. The automatic coating equipment comprises a spraying robot, a spraying programming system, a servo rotating table, an automatic coating viscosity controller, a flow controller, an automatic terahertz thickness measuring system, an industrial personal computer and the like; performing spraying program programming on the workpiece through a spraying programming system; the spraying robot clamps a spraying gun, and a spraying program is operated to achieve automatic spraying of paint; automatic control of the viscosity of the coating is realized through the automatic viscosity controller of the coating; the flow controller is used for realizing stable control and output of the coating discharge amount; a terahertz automatic thickness measuring system is used for measuring the thickness of a wet film and the thickness of a dry film of the coating; the whole programmed control of the spraying robot, the terahertz automatic thickness measuring system, the rotary table, the guide rail, the flow and the thickness measuring system is controlled through the industrial personal computer, the automatic spraying device is suitable for automatic spraying of the planetary detector back cover structure, and the thickness error is smaller than or equal to + / -3%.

The invention discloses a soil-water characteristic curve pressure plate instrument and a testing method, and relates to a soil-water characteristic curve pressure plate instrument which adopts a horizontal measuring tube, a newly designed upper gland and porous stone structure, a proportional valve and a PLC to apply air pressure step by step, and a testing method for testing a soil-water characteristic curve by using the soil-water characteristic curve pressure plate instrument. High-precision automatic control of stress loading in the test process and accurate measurement and recording of the consolidation displacement are realized; the influence of a position water head on the displacement in the dehumidification process and the water absorption in the moisture absorption process is overcome by adopting the horizontal measuring tube and setting the central height of the horizontal measuring tube to be consistent with the central height of the soil sample; the problem that the water discharge amount of the soil sample is small due to the influence of the position water head in the moisture discharge measurement process can be avoided, the problem that the water absorption amount of the soil sample is large due to the influence of the position water head in the moisture absorption measurement process can also be avoided, and the test precision and the test efficiency are improved.

According to the technical scheme, the pneumatic ladder assembly landing device is characterized in that the pneumatic ladder assembly landing device comprises a base, a hinged swing arm is connected to the base, a sliding arm is arranged on one side of the base, a sliding seat is connected to the sliding arm in a sliding mode, the sliding seat is hinged to the swing arm, a telescopic air cylinder is installed on the base, and the telescopic air cylinder is hinged to the swing arm. A second-section sliding arm is arranged at one end of the first-section sliding arm; and an overturning cylinder is connected between the one-section sliding arm and the swinging arm through an overturning cylinder connecting rod. The device can assist in taking down a 15-meter ladder frame in about 25 seconds, and a ladder which is about 200 jin and is 6 meters long can be put flat to the ground through a pneumatic action main power overturning and telescopic linkage device by one person; the operation is simple, and full-automatic control over stretching and overturning can be achieved only by pressing an upper button or a lower button of the pneumatic overturning device.

The present invention discloses a deep-water gravel bed dredging system and a dredging construction method thereof, and belongs to the technical field of underwater bed construction. It includes a floating body, a gantry trolley mechanism, a dredging device, a bottoming device and a monitoring device; the dredging device is connected to the gantry trolley mechanism, and the bottoming device is connected to the gantry trolley mechanism through a cable; the monitoring device is connected to the bottoming device, and the monitoring device determines the real-time contact state between the bottoming device and the surface of the dredged area according to the force change of the monitoring device, and controls the gantry trolley mechanism to drive the dredging device and the bottoming device to rise and fall synchronously, so that the bottoming device is adjusted in real time to be between a completely bottoming state and a completely disengaged state, so that the dredging device is at an operating depth. The present invention solves the technical problem that the dredging system in the prior art cannot effectively control the operating depth of the dredging device according to the change of tidal range in a large water depth environment.

The utility model discloses a tunnel type yeast culture device which comprises a yeast room, a plurality of groups of yeast racks are arranged in the yeast room, and each group of yeast racks is arranged in an independent space and is provided with a yeast rack air inlet and a yeast rack air outlet; the circulating air duct is communicated with the curved frame air inlet and the curved frame air outlet; the fan is arranged in the circulating air duct between the koji frame air inlet and the koji frame air outlet; the air inlet door is arranged on the circulating air duct between the curved frame air inlet and the curved frame air outlet; the exhaust door is arranged on the circulating air duct between the curved frame air inlet and the curved frame air outlet; and the steam pipeline is communicated with the circulating air duct. According to the tunnel type yeast culture device, manual participation is not needed in the culture process, the temperature and humidity of the device can be controlled according to the culture conditions of blocks, the culture conditions of the device can be independently controlled according to yeast blocks of different types, and full-automatic control can be achieved in the whole culture process.

The utility model discloses a continuous gas roasting lithium ore kiln production line which comprises a roasting furnace, a centralized control center, a dust removal system and a skip car, the roasting furnace comprises a drying furnace section, a roasting furnace section and an independent cooling section, and the continuous gas roasting lithium ore kiln production line feeds lithium ore materials into the roasting furnace through the skip car. Lithium ore materials are dried and roasted through the drying furnace section and the roasting furnace section, then the lithium ore materials are conveyed into the independent cooling section through a skip car to be cooled, and meanwhile dust removal treatment is conducted in the process that the lithium ore materials are dried, roasted and cooled through a dust removal system in the roasting furnace; according to the continuous gas roasting lithium ore kiln production line, the roasting furnace is matched with the combustion system, the temperature control system and the electric control system for use, full-automatic control over the heating speed, the temperature rising speed and all mechanical actions is achieved, the maneuverability of the continuous gas roasting lithium ore kiln production line is improved, and energy consumption is reduced.

The present invention relates to the technical field of acetylene production process, and aims to solve the problems in the prior art of high equipment and civil engineering investment, inability to realize full-automatic charging control of multiple generators, low system automation level, low efficiency and environmental protection, and small scale of production equipment. A full-automatic charging device and full-automatic control system for wet acetylene generator are provided, including a transmission structure and a control system for automatically controlling charging time and charging batch; a feeding structure is arranged at one end of the transmission structure; a conveying structure is arranged at the other end of the transmission structure, and a plurality of charging structures are arranged at the lower part of the conveying structure; the control system is electrically connected to the feeding structure, the transmission structure, the conveying structure and the charging structure; the material passes through the feeding structure, the transmission structure and the conveying structure in sequence, and is finally distributed to a plurality of charging structures. The beneficial effects of the present invention are that the equipment and civil engineering investment is reduced, the full-automatic charging control of multiple generators can be realized, the system automation level is improved, the efficiency is environmentally friendly, and the large-scale production equipment can be adapted.

This utility model belongs to the field of storage device technology, specifically relating to a device and system for collecting leaked ethylene glycol aqueous solution. It includes a collection tank body, a water inlet, a solenoid valve, a vent, a level gauge, a signal terminal, a drain outlet, a detection port, a controller, and a collection tank base. The water inlet is located on the top left side of the collection tank body via a straight pipe, the signal terminal is installed on the top right side of the collection tank body, and the drain outlet is located at the bottom of the collection tank body via a straight pipe. This utility model, through the coordinated design of the collection tank body, solenoid valve, level gauge, and controller, achieves automatic collection and alarm control of leaked ethylene glycol aqueous solution. When the liquid level reaches the alarm threshold, the controller automatically closes the solenoid valve at the water inlet and sends a signal to prevent the leaked liquid from continuing to spread. Simultaneously, manual collection is achieved through the drain outlet, effectively preventing the slightly toxic ethylene glycol aqueous solution from harming people and the environment, and significantly improving the safety of indoor ski resort air conditioning systems.

The present invention provides an automatic telescopic geophone, which is mainly composed of a geophone body and a geophone tail cone. The geophone body is composed of a geophone body housing, a servo motor, a large gear, a small gear, a support plate, and a support shaft. The servo motor provides power for the gear transmission, and the small gear drives the large gear to provide a large torque. The geophone tail cone is mainly composed of a cylindrical housing, a central shaft, a bearing seat, an impeller, a fixing pin, a latch, a telescopic auxiliary tail cone, a guide sleeve, a tail cone sleeve, a blade-shaped tail cone, and a bearing end cover. The telescopic auxiliary tail cone of the geophone reciprocates in the impeller through the latch, and the telescopic auxiliary tail cone is inserted into the soil under the push of the impeller. The blade-shaped tail cone is obtained by cutting 7 grooves. The telescopic auxiliary tail cone and the blade-shaped tail cone both increase the contact area between the tail cone and the soil, so that the coupling effect of the geophone tail cone and the earth is better.

The fancy steamed stuffed bun wrapper coating machine comprises a frame body and a PLC control device, a conveying belt is erected on the frame body, a wrapper feeding machine is arranged on one side of the conveying belt, and a material taking mechanical arm is arranged between the wrapper feeding machine and the conveying belt; the PLC control device receives the starting signal and then outputs a first control instruction to the leather feeder; the photoelectric sensor detects passing of the to-be-processed product and outputs a signal indicating that the to-be-processed product passes to the PLC control device, a second control instruction is output to the material taking manipulator to take the wrapper based on the output signal of the photoelectric sensor, and the wrapper is placed and attached to the to-be-processed product; and the PLC control device detects whether the material taking manipulator completes the placing action or not, if yes, a first control instruction is output to the leather supplying machine on the upper station and the lower station in the advancing direction of the conveying belt, the steps are repeated, and the to-be-machined product is coated with leather for many times. The device has the effect of improving the automation degree and the production efficiency.

This invention discloses a hot-melt welding device for large-diameter water supply pipes, the core of which consists of an assembly base, a positioning fixture, a pressurizing component, and a hot-melt component. The positioning fixture is equipped with a sliding base and longitudinal and transverse positioning components, ensuring precise connection of the water supply pipes. The pressurizing component, through a lifting base, a pressurizing unit, and an opening and closing adjustment component, achieves uniform pressure on the welding area, optimizing the welding process. The hot-melt component is responsible for heating the interface, ensuring welding quality. This design significantly improves welding efficiency and connection accuracy. This invention effectively solves the problems of low welding efficiency, poor connection accuracy, and difficulty in guaranteeing welding quality in existing technologies, providing an efficient, precise, and stable technical solution for welding large-diameter water supply pipes.

The invention relates to a multi-machine interconnected automatic punching production line which comprises a conveying mechanism and a plurality of punching machine tools sequentially arranged in the conveying direction of the conveying mechanism, and a linear carrying mechanism is arranged between the punching machine tools and the conveying mechanism. The linear carrying mechanism comprises a base and driving seats, the base and the punching machine tool are arranged in a spaced mode, the driving seats are movably arranged on the base, a material taking mechanism is installed between every two adjacent driving seats, and the material taking mechanisms are used for carrying workpieces between the conveying mechanism and the punching machine tool. The technical problems that when an existing stamping production line adopts a rotary mechanical arm to carry workpieces, the workpieces are prone to being affected by inertia and deviate and slide down, and the occupied space of equipment is large are solved.

The utility model discloses a full-automatic tension control unwinding device of a flow guide cloth splitting machine, and belongs to the technical field of flow guide cloth production and processing. A full-automatic tension control unwinding device of a flow guide cloth splitting machine comprises a rack and an unwinding roller, one end of a mandrel of the unwinding roller penetrates through the rack and is connected with an adjusting mechanism, the adjusting mechanism comprises a friction ring fixedly arranged on the mandrel in a sleeving mode and pressing rods symmetrically arranged on the two sides of the friction ring, and one end of each pressing rod is arranged on the friction ring in a pressing mode; an electric push rod is arranged on the rack, and the other end of the pressing rod is connected with the electric push rod through a connecting rod assembly; a detection roller is installed on the machine frame, the two ends of the detection roller are connected with tension sensors, and the detection roller is arranged on the machine frame through the tension sensors. According to the utility model, the aims of detecting the tension on line in the unwinding process of the diversion cloth splitting machine, transmitting the tension information to the controller and controlling the adjusting mechanism by the controller are fulfilled, so that the tension value required by the diversion cloth is fully automatically controlled in the unwinding process.

The utility model relates to a movable skid-mounted methanol gas supply system, which comprises a PLC (Programmable Logic Controller) control cabinet, a methanol storage tank and a working tank, the top of the methanol storage tank is provided with an overhaul inlet hole, one side of the overhaul inlet hole is provided with an oil gas recovery interface, the other side of the overhaul inlet hole is provided with a liquid level meter, the liquid level meter is electrically connected with the PLC control cabinet, and the PLC control cabinet is electrically connected with the working tank. A mechanical breather valve is arranged on one side of the liquid level meter, a liquid inlet pipe is arranged in the methanol storage tank, the liquid inlet pipe is connected with one end of a discharging pump, the other end of the discharging pump is connected with a basket filter, the basket filter is connected with a quick connector, and the discharging pump is electrically connected with a pump control box. The utility model not only solves the problems of long period, large occupied area, high cost, complicated reconstruction and extension and the like of the construction of a methanol fuel supply fixed station, but also has the advantages of strong reproducibility, flexible application, wide market popularization and application prospects, simplicity and convenience in operation and high safety.

The invention discloses an aeration control method and system for sewage treatment, the method comprising the following steps: deriving historical data; calculating the aeration volume under standard conditions at historical moments corresponding to the historical data based on an air volume frequency conversion formula; constructing a standard fuzzy gas-water ratio feature; constructing a prediction model based on the historical data and taking the gas-water ratio as a prediction value; collecting real-time data; inputting the real-time data into the prediction model to predict the fuzzy gas-water ratio GWR at the next moment required to reach a target DO value; calculating the blower frequency f by combining the predicted fuzzy gas-water ratio GWR with a water flow rate w; adjusting the blower frequency in real time according to the calculated blower frequency f; the invention can realize real-time automatic prediction and control of the blower air volume in the absence of an air flow meter, thus avoiding the cost accumulation caused by the expensive air flow meter, and realizing full-automatic algorithm control at the same time, significantly reducing labor costs, and having stable operation and accurate control.

The utility model belongs to the technical field of PVC (polyvinyl chloride) pipeline connection, and particularly relates to a special device for bonding energy storage system pipelines, which comprises a PLC (programmable logic controller) control mechanism, a tooling platform, a plurality of groups of pneumatic pushing mechanisms, clamping mechanisms, supporting mechanisms and sliding mechanisms, according to the scheme, under the cooperation of the PLC control mechanism, the tool platform, the pushing mechanism, the clamping mechanism, the supporting mechanism and the sliding mechanism, full-automatic control over the processes of positioning, fixing, bonding and the like of pipeline workpieces in the production process can be achieved, operation is easy, manual bonding is not needed, the working intensity and the working cost of manual bonding are greatly reduced, and the production efficiency is improved. And the production efficiency and the product quality are improved, and large-scale mass production can be met.

The application relates to a pulling belt device and a packaging equipment, wherein the pulling belt device comprises a feeding module and a clamping module, the feeding module comprises a feeding turntable and a plurality of rollers, the feeding turntable is used for cooperating with the plurality of rollers to provide a belt to the clamping module, and at least one of the plurality of rollers is configured to be movable to pull back the belt, and the clamping module is used for clamping the belt and moving in a first direction to pull the belt. The pulling belt device and the packaging equipment can improve the flattening quality of the protective film pull ear and improve the packaging rhythm and product yield.

The utility model belongs to control system technical field, specifically disclose a kind of packing car automation transfer control system, including transfer control module, and transfer control module is connected with AGV control module, WES system, line PLC;Online waiting position and offline waiting position are all included trolley mechanism and guide rail, and trolley mechanism is connected with transfer control module;Guide rail is used to guide the conveying path of packing car;Trolley mechanism is used to push the packing car in online waiting position to transfer waiting position and is used to push the packing car in offline waiting position to transfer waiting position. Through the effective interaction with AGV control module, WES system, line PLC, make the collaborative work between each equipment, according to the real-time state dynamic adjustment operation strategy of production line, avoid material jam and not timely supply and other problems, guarantee the smooth of production process.

A continuous oxidation reaction process of o-xylene chloride includes batching, continuous oxidation, tail gas condensation, flash distillation, acetic acid recovery, tail gas treatment and crude anhydride treatment steps. A bubbling reaction tower with a dehydration section and other matching equipment are used as a continuous o-xylene chloride liquid-phase air reaction device. The device, combined with the oxidation process of the invention, can continuously discharge the water generated during the reaction from the reaction system, greatly reduce the inhibitory effect of water on the reaction, and improve the product yield; at the same time, the device adopts a continuous feeding and discharging production mode to greatly improve the utilization efficiency of the reaction device, and avoid the frequent pressure increase and reduction, temperature increase and decrease of the reaction equipment caused by the intermittent process, which causes equipment fatigue damage.

A side voltage detection device and side voltage detection method for a soft-pack battery, the detection device comprises: a support unit; a battery pressing unit, comprising a lower pressing component and an upper pressing component, the lower pressing component comprises a lower pressing drive mechanism and an upper pressing plate; the upper pressing component comprises a support base, a pressing drive mechanism and a lower pressing plate; a side voltage detection unit, comprising a tab pressing conduction mechanism and a tab protection compatible moving mechanism, the tab pressing conduction mechanism comprises a tab pressing component and a tab conduction mechanism; the tab protection compatible moving mechanism is arranged between the support base and the lower pressing plate; and a control unit, comprising a controller and a plurality of pressure sensors; the side voltage detection method comprises the following steps: adjusting the position according to the size of the incoming material; after the soft-pack battery is loaded in place, the battery pressing unit clamps the soft-pack battery and measures the soft-pack battery. The beneficial effects of the present invention are: it can measure batteries of the same category and different sizes, with a wide range of applications; the whole process is automated and the work efficiency is high.

The invention discloses embedded part milling equipment in nuclear power construction and a milling operation method thereof. The milling equipment is used for milling the upper surfaces of a group of embedded parts, so that the upper surfaces of the group of embedded parts are positioned on the same horizontal plane; the milling equipment comprises a supporting assembly, a milling cutter and a milling driving assembly, the milling cutter is mounted on the supporting assembly through the milling driving assembly, and the supporting assembly is used for driving the milling driving assembly and the milling cutter to linearly move in the X-axis direction, the Y-axis direction and the Z-axis direction, so that the milling cutter can move to the position over the to-be-milled embedded part; the milling cutter is located at the bottom of the milling driving assembly. The axis of the milling cutter is arranged in the vertical direction. The milling driving assembly is used for driving the milling cutter to rotate around the Z-axis direction and is matched with the linear motion, provided by the supporting assembly, of the milling cutter in the Z-axis direction to serve as milling feeding of the milling cutter, and milling of the upper surface of the to-be-milled embedded part is achieved; through cooperation of the supporting assembly and the milling driving assembly, milling of the upper surfaces of all the embedded parts in the set of embedded parts is finally achieved, and the upper surfaces of all the embedded parts in the set of embedded parts are located on the same horizontal plane; the device can realize the characteristics of simple installation, convenient operation, high machining precision, high construction efficiency and the like, and effectively improves the milling implementation efficiency of the embedded part on the construction site.

The utility model belongs to the technical field of petrochemical engineering liquefied hydrocarbon loading safety and environmental protection, and particularly relates to a liquefied hydrocarbon loading arm airtightness detection and residual liquid recovery system. The system comprises a control system, a loading control assembly, a loading and unloading control assembly, an upper computer, a risk early warning system, an anti-explosion control box, a nitrogen filling assembly, a torch system and a crane pipe. The loading arm is provided with a root valve and a loading arm stop valve, the loading arm is connected with the under-pressure anti-explosion metal hose through a steel ball locking quick joint, the under-pressure anti-explosion metal hose is divided into two branches in the anti-explosion control box, one branch is that the under-pressure anti-explosion metal hose is connected with a torch system gas holder, and the other branch is connected with a nitrogen filling assembly. And automatic control can be carried out through a control system. The system provided by the utility model realizes the full-automatic detection of the gas tightness of the crane pipe during loading, loading and unloading of liquefied hydrocarbon, ensures the safety, reduces the workload of operators, recovers the residual liquid of the crane pipe, meets the environmental protection requirement, ensures the safety, and can check the detection data.

The utility model relates to door and window technical field, and disclose a kind of openable door and window based on gas leakage detection, comprising: window body, it has the state of sliding opening and sliding closing;Window body includes: window frame;Fixed interior window;Interior sliding window;Interior sliding window can slide up and down in window frame, and when sliding, window body can be opened or closed;Gas detection module;Control module, it is electrically connected with gas detection module;Drive execution component, it is provided with two groups, one end of two groups of drive execution component is connected with interior sliding window, two groups of drive execution component are connected in series, and after series connection, it is electrically connected with control module;Ventilation auxiliary module, it is electrically connected with control module.In the utility model, indoor gas concentration is detected in real time by gas detection module, once exceeds preset threshold value, control module can quickly generate instruction, drive relevant component work, realize the quick response to gas leakage.

The utility model discloses a quick purification preparation device which comprises a purification barrel, a filter medium and a discharging pipe, the filter medium is arranged in the purification barrel and located on the lower portion of the purification barrel, the discharging pipe is arranged on the lower portion of the purification barrel in a penetrating mode, a heating structure is installed outside the purification barrel, a feeding structure is arranged on the purification barrel in a penetrating mode, and the heating structure is connected with the feeding structure. The feeding structure comprises a feeding cylinder, an opening and closing door and a control push rod, the feeding cylinder is arranged on the purification barrel in a penetrating manner, the opening and closing door is hinged to the upper part of the feeding cylinder, and the control push rod is hinged between the feeding cylinder and the opening and closing door. The utility model relates to the field of design and use of purification tools, in particular to a rapid purification preparation device.

The invention discloses a continuous bowl wiping machine which comprises a mounting frame, a control assembly, a belt type conveying mechanism, a rotating disc mechanism, a cleaning mechanism, a telescopic mechanism and a rotating mechanism. The belt type conveying mechanism, the rotating disc mechanism, the cleaning mechanism, the telescopic mechanism and the rotating mechanism are electrically connected with the control assembly. A mounting plate is arranged in the middle of the mounting frame, a telescopic mechanism is mounted at the top, and a rotating mechanism is mounted at the tail end of the telescopic mechanism; a mounting seat is arranged in the middle of the mounting plate, a supporting plate is arranged at the top of the mounting seat, a turntable mechanism and a cleaning mechanism are mounted on the two opposite sides of the supporting plate respectively, and the turntable mechanism is rotationally mounted on the side edge of the supporting plate and matched with the supporting plate; and the belt conveying mechanism is arranged beside the mounting frame, and the belt conveying mechanism is further matched with the supporting plate. The belt type conveying mechanism is matched with the rotating disc mechanism, so that automatic conveying and positioning of bowls are achieved, and the automation level of the cleaning process is improved; the telescopic mechanism, the rotating mechanism and the cleaning mechanism are used in cooperation, it is guaranteed that the outer walls of the bowls are thoroughly cleaned, and the appearance quality and the hygienic standard of products are guaranteed.

A double-PLC fault-tolerant switching control system for a full-rotation propeller comprises a receiving module used for receiving a control instruction of a user, analyzing the control instruction to obtain a rotation speed instruction and a direction instruction of the full-rotation propeller, and sending the rotation speed instruction and the direction instruction to a first PLC control module; the first PLC control module is used for receiving a rotating speed instruction and a direction instruction, and the first monitoring module is used for obtaining the real-time rotating speed and the real-time steering angle of the full-rotation propeller after the first PLC control module receives the control instruction for a specified time and sending the real-time rotating speed and the real-time steering angle to the first judgment module; the use frequency of the second PLC control module is small, the influence of the environment on the second PLC control module can be avoided to a certain degree, the control precision of the second PLC control module is high, even if the first PLC control module fails, adjustment can be conducted through the second PLC control module, and therefore the error-tolerant rate of the full-rotation propeller in the control process is greatly increased, and the control reliability of the full-rotation propeller is improved. And full-automatic control of the full-rotation propeller is realized.

The utility model provides a circular-truncated-cone-shaped piston electric switch type active ventilation opening, and belongs to the technical field of ventilation opening equipment. The in-wall ventilation pipeline is in a big-end-down circular truncated cone shape and is made of a polypropylene plastic plate or glass fiber reinforced plastic; the fan communicates with the outer side of the ventilation pipeline in the wall body and is located outdoors; the piston is in a big-end-down circular truncated cone shape matched with the ventilation pipeline in the wall body, is located indoors and is used for improving the sealing performance between the piston and the ventilation pipeline in the wall body; and the driving device is used for driving the piston to axially move along the ventilation pipeline in the wall body. The fan is arranged outside, the piston is arranged indoors, the piston moves from bottom to top to achieve extrusion type sealing, the ventilation pipeline in the wall is made of polypropylene plastic plates or glass fiber reinforced plastics, the service life of the fan can be prolonged, the piston is prevented from being quickly frozen under the conditions of cold and high humidity, heat conduction is reduced, and the service life of the fan is prolonged. And the adhesion phenomenon of the piston and the iron ventilation pipe wall during pre-cooling and wetting is prevented.

The utility model discloses a hydrogen peroxide production line combined vacuum-pumping system, which is characterized in that a vacuum-pumping main pipe outlet is connected with an extraction opening of a roots vacuum pump, an exhaust opening of the roots vacuum pump is connected with an extraction opening of a liquid ring vacuum pump in series, and an exhaust opening of the liquid ring vacuum pump is connected with a gas inlet at the top of the left side of a gas-liquid separation tank; a right top exhaust port of the gas-liquid separation tank is connected with a tail gas collection device; a vertical middle partition plate is arranged in an inner cavity of the gas-liquid separation tank and divides a tank body into a left cavity and a right cavity, and an overflow channel is reserved between the middle partition plate and the tank top. A pure water replenishing pipe is connected to the left cavity of the gas-liquid separation tank through a pure water replenishing valve; a water outlet in the lower part of the left cavity of the gas-liquid separation tank is connected with a hot side inlet of a cooler through a filter; a hot side outlet of the cooler is connected with a working liquid inlet of a liquid ring vacuum pump; and a water outlet at the bottom of the right cavity of the gas-liquid separation tank is connected with a wastewater discharge pipe through a wastewater discharge valve. According to the system, the vacuum degree and the air exhaust efficiency can be improved, automatic adjustment of the vacuum degree and automatic separation and discharge of waste liquid are achieved, and meanwhile energy consumption is reduced.