168results about How to "Reduce maintenance workload" patented technology

This invention provides an intelligent vibration temperature control device for concrete pouring in hydraulic engineering, relating to the field of vibration equipment technology. It includes a main vibrating rod, a lower connecting support rod, an external temperature control hose, and a temperature control storage tank. The lower connecting support rod and the external temperature control hose are arranged in a ring array on the outer side of the main vibrating rod. The external temperature control hose and the temperature control storage tank are interconnected. The tail end of the lower connecting support rod is rotatably connected to a middle connecting rod, and the tail end of the middle connecting rod is rotatably connected to the head end of an upper connecting support rod. The middle connecting rod, the upper connecting support rod, and the lower connecting support rod together form a V-shaped linkage mechanism and are arranged in a ring array outside the main vibrating rod. The external temperature control hose maintains a V-shaped bend simultaneously. The external temperature control hose extends and moves away from the main vibrating rod, expanding the temperature control influence range and improving temperature control efficiency. This solves the problem that the fixed, close-fitting temperature control pipeline for vibration can only cool a very small area of ​​concrete in the center of the vibrating rod, resulting in a small temperature control influence range.

The application provides a self-adhesive label tension adjusting device, and relates to the technical field of label tension adjustment.The self-adhesive label tension adjusting device comprises a self-adhesive label tension adjusting box, an electric sliding rail is fixedly installed on the left inner wall of the self-adhesive label tension adjusting box, a self-adhesive label tension adjusting assembly is arranged, the electric sliding rail drives the electric sliding block to drive the sliding frame to lift and lower, the sliding rod is matched with the electric sliding block to slide in the guide sliding groove, the tension adjusting roller stably changes the position to adjust the tension, the spring buffers the tension fluctuation through the elastic force, the pressure sensor monitors the tension value in real time and feeds back, and the adjusting accuracy is ensured; meanwhile, the L-shaped self-adhesive label guide plate of the self-adhesive label guide cleaning assembly moves along the bidirectional screw under the drive of the motor, the label is limited from both sides and the top, the polishing smooth layer reduces the friction resistance, the label is effectively prevented from deviating in the tension adjusting process, and the deviation problem caused by the traditional device depending on the lifting adjustment is solved.

A device and locking method for fixing a lock gate on a fixed roll, comprising an upper support, a travel switch, a locking pull rod, a handle, a clamping plate, a bolt, a nut and a self-lubricating bearing piece; the upper support is fixed on the frame of the fixed roll, and the travel switch is fixed on the top of the upper support; one end of the locking pull rod is connected with a lower support, and the other end is fixed on the upper support through the nut; the handle and the clamping plate are fixed on the top of the locking pull rod through the bolt; the self-lubricating bearing piece is located between the nut and the upper support; and the lower support is fixed on the gate. The device and locking method are simple in structure, safe in operation, reliable in locking, and capable of realizing remote monitoring of the locking state, so as to solve the problems of existing gate locking devices, such as difficult manual carrying, dangerous operation, easy environmental influence and fixed locking position.

The invention provides a high-sulfur natural gas metering and pressure guiding device, method and system, and the device is characterized in that pressure measurement equipment is communicated with a natural gas pipe wall through a first pipeline, the pressure measurement equipment is communicated with differential pressure measurement equipment through a second pipeline, and the differential pressure measurement equipment is connected with the natural gas pipe wall through a third pipeline; the differential pressure type flowmeter is installed in the natural gas pipeline, the second pipeline and the third pipeline are communicated with the pressure liquid accumulation tank through branch pipes respectively, and the liquid inlet ends of the differential pressure liquid accumulation tank, the pressure liquid accumulation tank and the differential pressure liquid accumulation tank are all provided with switch valves electrically connected with the pressure measuring device and the differential pressure measuring device. According to the invention, the state of the gas flow of the natural gas pipeline is firstly judged by the differential pressure type flowmeter, and then pressure and differential pressure detection is carried out on the natural gas in a steady state by the pressure measurement equipment and the differential pressure measurement equipment, so that the accuracy of the detection data is guaranteed, and the corresponding switch valves are opened in time; therefore, the maintenance workload of high-sulfur-content field equipment is reduced.

The utility model discloses railway turnout switching equipment and a turnout hook-shaped external locking device thereof, which belong to the technical field of rail transit, and the turnout hook-shaped external locking device comprises a switch rail connecting iron component, a push-pull plate component, a connecting iron seat component and a lock hook, the push-pull plate assembly is connected with the switch rail connecting iron assembly and the connecting iron base assembly. The switch rail connecting iron assembly is connected with the connecting iron seat assembly; and the lock hook is connected with the connecting iron seat assembly. The turnout hook-type external locking device is simple in structure, convenient to install, reasonable in design, small in abrasion between parts, long in replacement period, small in later maintenance workload, high in adaptability to extension and retraction of a switch rail, beneficial to keeping parallelism between the external locking parts, capable of reducing frictional resistance during turnout switching, capable of improving reliability of turnout switching, and capable of being used for improving the reliability of turnout switching. And the workload of turnout maintenance is reduced.

The invention relates to a vertical bulk grain storage cavern in a mountain. The multiple rows of grain storage silo groups are arranged side by side in the length direction of the vestibule, each row of grain storage silo group comprises a plurality of grain storage silos arranged at intervals in the direction perpendicular to the vestibule, the axes of the grain storage silos are vertically arranged, and waterproof structure layers are arranged on the inner circumferential walls of the grain storage silos. The waterproof structure layer comprises a fine aggregate concrete layer, a concrete primary lining layer, a concrete secondary lining layer and a plastic waterproof plate layer which are sequentially arranged from the mountain to the center of the grain storage silo, water collecting square pipes and vertical drainage pipes are pre-buried in the waterproof structure layer, the water collecting square pipes are spirally wound in multiple layers in the vertical direction, and the water collecting square pipes communicate with the vertical drainage pipes; a plurality of evenly-distributed water collecting holes are formed in the upper surfaces of the water collecting square pipes and communicate with the interiors of the water collecting square pipes, drainage main pipes communicating with one another are arranged in the vestibule and the grain outlet channels, and the vertical drainage pipes communicate with the drainage main pipes.

The utility model discloses a vibration reduction elevator car platform with an ultra-large area. The vibration reduction elevator car platform comprises a car bottom plate and a car platform frame assembly. The car bottom plate comprises an upper car bottom plate body and a lower car bottom plate body, a grid rib assembly is fixedly arranged between the upper car bottom plate body and the lower car bottom plate body and divides the space between the upper car bottom plate body and the lower car bottom plate body into a plurality of independent grids, and vibration reduction rubber is arranged in each independent grid. According to the utility model, through the arrangement of the grid rib assemblies and the damping rubber, compared with the original mode of damping by using a spring, the occupied space of a hoistway is reduced, the structure is simplified, and the installation and the maintenance are convenient; through the arrangement of the self-cleaning piece and the driving piece, the hole groove can be prevented from being blocked by dust without additionally arranging a driving assembly, the stability of the ventilation and dust removal effect is maintained, meanwhile, the frequency of manual cleaning is reduced, and the maintenance workload and cost are reduced.

The application provides a thyristor-based multi-port hybrid DC circuit breaker and a control method, comprising: a plurality of main branches and a shared branch; all the main branches are connected to the shared branch; the shared branch comprises a first thyristor branch, a power supply side circuit breaker unit and a fault side circuit breaker unit, the thyristor branch is used for bearing fault current in the process of breaking of a fast mechanical switch in the main branch; the fault side circuit breaker unit is composed of a first capacitor, a first discharge resistor and a first lightning arrester element in parallel connection; the power supply side circuit breaker unit is composed of a second thyristor branch, a current limiting resistor, a second capacitor, a second discharge resistor and a second lightning arrester, wherein the second capacitor, the second discharge resistor and the second lightning arrester are connected in parallel to form a second branch, the thyristor branch and the current limiting resistor are connected in series to form a first branch, and the first branch is connected in series to the second branch.

The present application relates to injection molding machine anti-blocking technical field, specifically is a kind of injection molding machine with anti-blocking function, including mould unit and injection unit;Injection unit includes nozzle, feed unit and connecting channel;Mould unit includes movable mould and fixed mould, nozzle is arranged on fixed mould, fixed mould and movable mould form mould cavity when closing mould, nozzle is communicated with mould cavity, there is included angle between the extension direction of nozzle and horizontal plane, and the included angle is greater than or equal to 1 °;Feed unit is horizontally arranged below nozzle;Connecting channel is vertically arranged between feed unit and nozzle, and both ends of connecting channel are communicated with feed unit and nozzle respectively.The present application not only simplifies nozzle structure, controls outer diameter size to adapt complex mould, but also avoids the problem of high energy consumption and high cost caused by continuous heating.

The invention provides an electrical structure generation and cross-platform interaction system independent of a CAD platform, the system adopts a three-layer decoupling architecture of a core generation layer, a general intermediate data layer and an adapter presentation layer, the core generation layer independently executes electrical service logic calculation, the general intermediate data layer realizes data standardization packaging and transmission, and the adapter presentation layer is used for realizing data transmission. And the adapter presentation layer realizes bidirectional conversion between standardized data and different CAD platform graphic instructions through a multi-platform driving module. According to the method, complete decoupling of the electrical service logic and the CAD platform can be realized, the cross-platform compatibility, development and maintenance efficiency and expansibility of a design tool are improved, the replacement cost of an enterprise platform is reduced, and the method is suitable for cross-platform design scenes of various electrical structures.

The invention relates to the technical field of batteries, in particular to a safety type less-maintenance flooded battery which comprises a battery body, a battery cover and a battery cover, and the battery body is provided with a communication channel capable of releasing oxyhydrogen; and the reaction bin covers the battery body and forms a sealed space communicated with the communication channel, and a catalysis part capable of catalyzing a hydrogen-oxygen gas composite reaction is arranged in the reaction bin. The sealed space formed by the battery body and the reaction bin is matched with the precise positioning design of the catalytic part, so that the utilization rate of oxyhydrogen gas is greatly improved, water vapor generated by an oxyhydrogen composite reaction flows back to an original single-cell battery along a directional path after being condensed, a liquid supplementing closed loop of electrolysis-composite-backflow is formed, water loss of the battery is reduced, and the service life of the battery is prolonged. And the water replenishing maintenance frequency is reduced, the trouble of frequent maintenance is eliminated, and the maintenance cost and workload of a user are reduced.

The utility model provides a kind of corrosion -resistant composite electrode circulating water wash type electrostatic precipitator, belong to dust removal equipment technical field, including connecting assembly, including support, fixed block being fixedly connected in the support end part, hopper being fixedly connected in the fixed block side wall, dust collector shell being fixedly connected in the hopper end part;Cleaning assembly, including rotationally connected in the dust collector shell inside stirring mechanism, fixedly installed in the one side of the stirring mechanism end part limit disc.The utility model has the beneficial effect that: the rigid support of support and fixed block, the radial limit of limit disc to stirring mechanism, ensure that there is no obvious vibration when equipment operates;Cover plate buckle and flange sealing design, ensure the sealing of shell, avoid gas leakage pollution environment;The anti -skid design of trundle makes device move flexible, it is convenient to adjust working position;Cover plate hinged structure and drain valve design, simplify internal overhaul and sediment cleaning process, reduce maintenance workload.

This utility model relates to the technical field of slag discharge devices for furnace slag coolers, and discloses a slag discharge speed adjustment device for furnace slag coolers. The device includes a slag discharge cylinder, with an adjustment cylinder fixedly connected to the outer wall near the bottom. A rotating disk is movably connected to the bottom of the inner wall of the adjustment cylinder. The top of the rotating disk has six equidistant, annularly distributed inclined adjustment slots. An adjustment block is inserted into one end of the inner wall of each inclined adjustment slot. The output end of the adjustment block is located on the upper surface of the rotating disk. A limit slide is provided at the bottom of the slag discharge cylinder. The top output end of the adjustment block is slidably connected to the top of the inner wall of the limit slide. Through the cooperation of the above structures, this device achieves precise adjustment of the slag discharge speed of the furnace slag cooler. The rotating disk is driven to rotate by a forward and reverse motor, causing the adjustment block to move within the limit slide, changing the cross-sectional area of ​​the slag discharge channel. Simultaneously, a stirring roller driven by a servo motor prevents slag blockage, improving slag discharge efficiency and production stability, making it more practical.

The utility model relates to the field of building construction technology discloses a kind of rope protectors for aerial work, including mounting seat, the mounting seat includes installation vertical board, the one side of installation vertical board is vertically fixed with installation horizontal plate, the other side is fixed with two parallelly arranged fixed plates, two fixed plates between installation have two parallelly arranged first rope protection gyro wheel and second rope protection gyro wheel, first rope protection gyro wheel and second rope protection gyro wheel between form the accommodation space for rope to pass through, the top of installation vertical board is fixed with mounting bracket, sliding wheel is rotatably installed on the mounting bracket.The utility model provides a kind of rope protectors for aerial work, which is safe and reliable, convenient to adjust, easy to maintain and has a buffering protection function, effectively improves the safety and efficiency of aerial work, the rope is limited and supported by the first rope protection gyro wheel and the second rope protection gyro wheel, direct friction between the rope and the fixed component is avoided, the wear of the rope is reduced, and the service life of the rope is prolonged.

The utility model relates to a kind of split type electric control silicon oil fan structure, it relates to the technical field of automobile parts design, it includes engine, fan bearing seat, electric control silicon oil clutch and fan blade connected in turn, electric control silicon oil clutch includes the driving disc for indirectly connecting engine power output shaft and the driven disc for connecting fan blade, driving disc and driven disc pass through working medium transmission power between, form split structure.The utility model provides the electric control silicon oil fan structure with low development cost, short matching period, facilitate the quick application of electric control silicon oil fan on vehicle.

The utility model discloses ingredient mixing equipment for detergent production, and relates to the technical field of detergent production. The device comprises a mixing barrel, a mixing assembly is arranged in the mixing barrel and comprises a mixing hopper arranged in the mixing barrel in a sleeved mode, a filter plate is arranged on the upper surface of the mixing hopper, a rotating shaft is vertically and rotatably connected to the middle of the mixing hopper, and the upper end of the rotating shaft penetrates through the middle of the filter plate. Stirring rods connected with the peripheral side of the rotating shaft are positioned in the mixing hopper; and a stirring assembly is arranged at the lower part of the mixing barrel. The mixing assembly is arranged to separate impurities in detergent raw materials, the purity of the detergent raw materials is improved, the quality of detergent finished products is improved, the stirring assembly is arranged, a driving structure does not need to be additionally arranged, the number of motors is reduced, and the motor overhaul workload is reduced.

The utility model discloses a novel vertical slicing machine relates to the field of slicing machine, including the inner circle slicing machine, and the inner circle slicing machine upper surface one side is provided with the workstation, and the workstation upper surface edge part is provided with the control display screen, and the workstation one side is fixedly installed with the pneumatic part, and the pneumatic part one side is provided with the feeding part, and the inner circle slicing machine upper surface one side is installed with the water shield at the place close to the workstation, and the water shield inside rotatory mounting has the cutting blade, and the inner circle slicing machine front end face middle part is provided with the flow water valve, through the full surrounding type protection structure, the protection range is greatly expanded, solves the problem that the existing half surrounding protection shield is poor in protection, and the transparent protection board covers both sides and the back of the protection shield, only reserves the feeding space, can effectively block the high -speed sputtering cutting fluid and the chippings, avoids its pollution surrounding environment and equipment, while transparent material does not affect the operator through control display screen or direct observation cutting state, need not open the protection shield frequently, reduces the production interruption.

The utility model relates to the technical field of oxygen sensors, in particular to a zirconium sheet protective layer dip-coating lifting dryer, which is characterized in that a dip-coating lifting device and a drying device are mounted on a workbench, and the drying device is positioned on one side of the dip-coating lifting device; a slurry container mounting base is mounted on the main machine, a slurry container is mounted on the slurry container mounting base, slurry is placed in the slurry container, a stand column is mounted on one side of the slurry container mounting base, a first linear motor driving module is mounted on the stand column, and a mounting tool is mounted on the first linear motor driving module through a supporting arm. A product disc is placed on the installation tool and located above the slurry container. The drying device is optimized, the drying time is shortened, the production efficiency is improved, coating drying and treatment of a next group of products can be completed more quickly, the stirring device is more convenient to disassemble and assemble through the locking device, the slurry container is convenient to disassemble and assemble, the slurry container is convenient to clean, the maintenance time is shortened, the workload is reduced, and the equipment stability is improved.

The application relates to the technical field of wheel hubs, in particular to a vehicle wheel hub, which comprises a hub component group, the outer part of the hub component group is provided with a spoke component group, a quick-connection component group and an adjustable rim component group from near to far. Through the design of the quick-connection component group and the adjustable rim component group, the damaged spoke component group can be quickly replaced without disassembling the wheel hub, and through the cooperation of the outer moving plate, the clamping block and the inserting rod, the dismounting and mounting efficiency of the rim component is further improved.

The present application relates to the field of environmental protection, and provide a kind of nuclear waste disposal system and processing method, nuclear waste disposal system includes waste resin temporary storage device, evaporated residual liquid temporary storage device, drying device, cooling equipment and waste gas waste liquid treatment equipment, the feed inlet of drying device is connected with the discharge port of waste resin temporary storage device and evaporated residual liquid temporary storage device respectively, for respectively drying treatment of waste resin and evaporated residual liquid, cooling equipment is communicated with the exhaust port of drying device, to carry out condensation treatment to high-temperature water vapor discharged from the exhaust port of drying device;Waste gas waste liquid treatment equipment is communicated with the cooling equipment, for treating waste gas and waste liquid generated after condensation of cooling equipment;The two independent processing systems of waste resin and evaporated residual liquid are integrated together in the present application, which can effectively reduce the number of subsequent auxiliary equipment of nuclear waste disposal system, and correspondingly reduce equipment cost and maintenance workload.

The embodiment of the invention provides a test method and device of terminal equipment, electronic equipment and a storage medium. The method comprises the steps of obtaining to-be-tested terminal equipment and a target test task; according to a pre-established test model, testing the to-be-tested terminal equipment to obtain a test result corresponding to the target test task; wherein the pre-established test model is obtained by training a large model by adopting sample data, and the sample data at least comprises a user interface screenshot, content information corresponding to the user interface screenshot, a test task and a test case corresponding to the test task; according to the embodiment of the invention, full-process automation of'use case generation-script adaptation-root cause analysis' is realized through a large model, and dependence on experience of testers is reduced; according to different test tasks of different terminal devices, a large model can generate different test cases to adapt to different models, manual consumption does not need to be additionally increased, large-scale test requirements are met, and the test efficiency is improved.

The invention belongs to the field of pipeline system valve manufacturing, and particularly relates to an overspeed cutoff valve. Comprising a valve body, a valve rod, a valve clack, a guide support, a speed limiting spring, a rubber sealing gasket, a gasket and a check spring. Within the rated flow speed, the stress of the valve clack is smaller than the rated thrust, the speed limiting spring keeps stable in form due to the pre-compression force, and the position of the valve clack keeps stable; when the liquid flow speed exceeds the rated flow speed and is gradually increased, the thrust borne by the valve clack is larger than the elastic force of the speed limiting spring, the valve clack moves in the water flow direction along with the increase of the thrust, meanwhile, the overflowing cross section between the valve clack and the valve body becomes smaller, the front-back pressure difference of the valve clack continues to be increased till the valve is completely closed, and finally the pipeline pressure completely acts on the valve clack. Sealed cutoff is realized; the method has the beneficial effects that construction is easy, the economic cost is low, the maintenance workload is small, pipe explosion loss is reduced, and the water cut-off range is narrowed; in an existing pipe network, an original check valve can be directly replaced, and the pipe burst protection effect can be achieved with small workload.

This utility model provides an integrated VOCs adsorption and purification device for industrial use, belonging to the field of air purification technology. It includes a housing, from bottom to top, comprising a filter chamber, a buffer chamber, and an exhaust chamber. An air inlet pipe is located on the outside of the filter chamber, and a filter unit with a filter cavity is installed inside the filter chamber. The air inlet pipe connects to the filter cavity. An air inlet connecting to the filter chamber is located at the bottom of the buffer chamber, and an air outlet connecting to the exhaust chamber is located at the top of the buffer chamber. An exhaust pipe is located on the outside of the exhaust chamber, and an exhaust fan is installed inside the exhaust chamber. The air inlet of the exhaust fan is connected to the air outlet, and the exhaust outlet of the exhaust fan is connected to the exhaust pipe. The integrated VOCs adsorption and purification device for industrial use provided by this utility model has a compact structure, high purification efficiency, stable operation, and convenient maintenance, meeting the needs of air pollution control.

This application relates to a self-drainage structure for a rotor installation pit. This application is applicable to the field of hydropower construction technology. The technical problem to be solved by this application is: to provide a self-drainage structure for a rotor installation pit. The technical solution adopted in this application is: a self-drainage structure for a rotor installation pit, comprising: an upper drainage hole formed between the installation pit and a construction support tunnel below the installation pit, the upper end of the upper drainage hole connecting to the bottom of the installation pit, and the lower end of the upper drainage hole connecting to the construction support tunnel; a middle drainage pipe disposed within the construction support tunnel, the upper end of the middle drainage pipe connecting to the lower end of the upper drainage hole, and the lower end of the middle drainage pipe extending to a drainage ditch at the bottom of the construction support tunnel; and a lower drainage hole formed between the construction support tunnel and a self-drainage tunnel below the construction support tunnel, the lower drainage hole connecting to a drainage ditch at the bottom of the construction support tunnel, and the lower end of the lower drainage hole connecting to the self-drainage tunnel.

The application relates to an electric operating mechanism of an insertion type circuit breaker, which comprises a closing motor, a tripping electromagnet, a PCB control panel and a micro-motion detection switch. When the circuit breaker needs to be closed, the PCB control panel gives a closing signal to make the closing motor rotate, a driving wheel is driven to rotate by a driven wheel, an electric handle is driven to close the circuit breaker, and the closing detection switch is closed to detect whether the circuit breaker is closed to the position. When the circuit breaker needs to be tripped, the PCB control panel gives a tripping signal to make the tripping electromagnet electrified, a moving core of the tripping electromagnet pushes a trip lever of the circuit breaker to make the circuit breaker trip, and the tripping detection switch is actuated to detect whether the circuit breaker is tripped to the position. The electric operating mechanism is simple in structure, compact in installation, can be conveniently installed into the shell of the circuit breaker, can realize automatic control of the circuit breaker through a golden finger slot, the closing and tripping of the circuit breaker are independent systems, and the use of the detection switch makes the electric closing and tripping of the circuit breaker stable and reliable.

This invention relates to a laser-based precision measurement and positioning system for hoisting ladle cars and molten steel ladles in refining areas, belonging to the field of steel metallurgical refining production equipment control technology. It includes: a laser measurement module for collecting ladle car displacement data; a laser ranging unit for collecting the relative distance data between the molten steel ladle and the target position during hoisting; an interlocking control module that automatically triggers the action interlock of the ladle car and molten steel ladle equipment when the ladle car displacement data and relative distance data are within a set threshold range; and an automatic confirmation module that controls the ladle car and molten steel ladle equipment to automatically complete positioning when the ladle car displacement data and relative distance data meet set conditions. This invention, by introducing an interlocking control module, technically eliminates human error, improving positioning stability to over 99.9%, forming a closed-loop technical solution of "measurement-positioning-interlocking-automatic confirmation".

The utility model relates to dust removal technical field discloses coal conveying system transfer station dust remover, including control chamber and filter bin, the control chamber downside fixedly connected on filter bin upside, the filter bin downside fixedly connected with discharge gate, the filter bin right side is established with gas outlet, the filter bin left side is established with air inlet, the control chamber upside inside fixedly connected with connecting pipe, the connecting pipe upside rotationally connected with apron, the filter bin inner wall downside fixedly connected with baffle, the baffle inside fixedly connected with filter bag, filter bag other side fixedly connected with connecting plate, the connecting plate upside is provided with fixed component, the connecting plate upside fixedly connected with handle, the sliding plate upside is provided with vibration component, in the utility model, realize filter bag self -cleaning through mechanical vibration, reduce maintenance cost, guarantee operation efficiency, simplify filter bag replacement process, improve equipment comprehensive performance.

This utility model discloses an aeration blower for a biological treatment tank, comprising: a blower main frame, which is located at the upper end of the biological treatment tank for wastewater treatment; a blower body is located inside the blower main frame; and a variable frequency speed-regulating blower for speed adjustment is located on one side of the blower body. A secondary air duct is connected in parallel to the main air duct via an electric pressure relief valve. The cleaning sleeve design of this utility model is driven to rotate by the airflow generated by the aeration head. The airflow swirl vanes and nylon brushes automatically clean the surface dirt of the aeration head, while auxiliary ball bearings reduce frictional resistance, ensuring smooth rotation of the cleaning sleeve and effectively preventing aeration head blockage. A multi-parameter sensor module can predict blower failures in advance by long-term monitoring of data such as pressure, flow rate, temperature, and humidity, enabling preventative maintenance, reducing maintenance workload and time costs, ensuring stable operation of the blower and aeration system, and continuously maintaining good aeration effects.

This application discloses a rodless pump-based surface power equipment for underground drainage and gas extraction, belonging to the technical field of underground drainage and gas extraction equipment. It includes: a conveying device for pumping power fluid; a drainage control valve, including a valve adjusting component and a valve body with a power fluid inlet, a power fluid outlet, a power fluid exchange port, and a power fluid return port. The power fluid inlet is connected to the conveying device, the power fluid outlet is connected to a pipeline injected into the formation, the power fluid exchange port is used to export a portion of the power fluid and allow it to return, and performs work on another portion of the power fluid exported through the power fluid outlet during the export process; the power fluid return port is used to return the power fluid to its source; and a driving device for actuating the valve adjusting component. When the driving device actuates the valve adjusting component, the valve adjusting component can connect the power fluid inlet to the power fluid outlet and the power fluid exchange port, or only connect the power fluid inlet to the power fluid exchange port, or connect the power fluid inlet to the power fluid outlet, the power fluid exchange port, and the power fluid return port.