254results about How to "High working reliability" patented technology

This invention discloses an adaptive wave-absorbing and flow-guiding device for aero-engines, comprising a casing made of wave-absorbing composite material, a wave-absorbing inner ring concentrically arranged with the casing, multiple adjustable wave-absorbing blades distributed circumferentially along the casing, a conical fairing disposed at the leading edge of the wave-absorbing inner ring, and an actuation mechanism. The adjustable wave-absorbing blades include an adjustable leading edge made of metal and an adjustable trailing portion made of wave-absorbing composite material. The leading edge of the adjustable wave-absorbing blade is fixedly disposed between the casing and the wave-absorbing inner ring, while the trailing portion is movably disposed between the casing and the wave-absorbing inner ring. The actuation mechanism is used to adjust the angle between the trailing portion of the adjustable wave-absorbing blade and the incoming flow. This adaptive wave-absorbing and flow-guiding device for aero-engines achieves the dual functions of regulating the inlet airflow and wave-absorbing efficiency, reducing the complexity of the aero-engine system and thus improving its operational reliability.

An automatic rope binding device comprises an annular rotating disc, a clamping jaw, a rope grabbing mechanism, a knotting mechanism, a rope pulling mechanism and a rope cutting mechanism, the annular rotating disc is installed on a rack, the rope grabbing mechanism is installed on the annular rotating disc, and the clamping jaw, the knotting mechanism and the rope cutting mechanism are all installed on the portion, located on the inner side of the annular rotating disc, of the rack; the rope cutting mechanism comprises a moving cylinder, a rope cutting cylinder and a pair of rope cutting scissors, the moving cylinder is mounted on the portion, located on the inner side of the annular rotary disc, of the rack and used for controlling the rope cutting cylinder to vertically move, and the rope cutting cylinder is used for controlling the rope cutting scissors to be opened and closed to cut the rope. According to the rope tying device, the rope cutting mechanism is arranged on the inner side of the annular rotating disc, interference between the rope grabbing mechanism and the rope cutting mechanism can be avoided, the working reliability of the rope tying device is improved, the rope grabbing reliability of the rope grabbing mechanism can be improved, meanwhile, a long end and a short end of a formed rope knot are easy to distinguish, and later operation is facilitated.

This invention provides a polishing slurry supply system and a polishing machine. The polishing slurry supply system includes a storage container and a dispensing device. The dispensing device is connected to the outlet of the storage container and includes a power pump and filter pipelines connected in series. Multiple filter pipelines are arranged in parallel, and each filter pipeline is equipped with a filter and a filter pipeline regulating valve. The polishing slurry supply system of this invention has multiple parallel filter pipelines in its dispensing device. When one filter pipeline malfunctions, the dispensing device can flexibly switch to another normal filter pipeline to continue supplying polishing slurry, allowing the flow rate of the polishing slurry to return to a stable state. This avoids interruption of polishing slurry supply due to filter pipeline failure, ensuring the continuity and stability of the polishing process. This polishing slurry supply system can effectively provide polishing slurry with a stable flow rate, significantly improving the working efficiency and reliability of the polishing equipment.

This application relates to a wireless Jacquard needle block, a combing device, and a warp knitting machine. The wireless Jacquard needle block includes a connector, a control circuit, a drive circuit, and yarn guide needles. The connector includes a first power pin, a second power pin, a ground pin, and a signal pin. The control circuit connects to the first power pin, the ground pin, and the signal pin. The drive circuit connects to the second power pin, the ground pin, the control circuit, and the yarn guide needles. The first power pin is used to connect to a first power source powering the control circuit, the second power pin is used to connect to a second power source powering the drive circuit, and the signal pin is used to connect to a control signal. The control circuit outputs a drive signal based on the control signal, causing the drive circuit to control the operation of the yarn guide needles according to the drive signal. The lengths of both the first and second power pins are shorter than the length of the ground pin, enabling a reliable grounding connection to be established before power is connected when connecting to the backplate, effectively addressing transient overvoltages caused by hot-plugging and improving reliability.

The present application relates to furfuryl alcohol production equipment technical field, disclose a kind of furfuryl alcohol production waste residue drying device, including drying seat, drying box is installed on drying seat, upper disturbance plate is hingedly installed on the upper end of drying box side wall, lower disturbance plate is hingedly installed on the lower end of drying box side wall, cavity tube is communicated through between the region of upper disturbance plate and lower disturbance plate corresponding to the position of drying box side wall, telescopic mechanism for changing the relative position between upper disturbance plate and lower disturbance plate is provided on drying box, jet mechanism for spraying hot gas on upper disturbance plate and lower disturbance plate is further provided in drying box, driving mechanism for driving telescopic mechanism and jet mechanism operation is further installed on the position of drying box outer wall, lifting mechanism for guiding furfuryl alcohol waste residue into the inside of drying box is provided on drying seat.The present application makes that furfuryl alcohol waste residue can be evenly contacted with hot air flow on upper disturbance plate and lower disturbance plate, ensures the drying uniformity of waste residue, and also realizes the complete recovery of furfuryl alcohol waste residue.

The utility model discloses a heat dissipation device and a low-speed motor. The heat dissipation device comprises a cooler, a pipeline fan and an external pipeline connected between a front end cover and a rear end cover of the motor. The cooler and the pipeline fan are arranged on an external pipeline; the external pipeline is communicated with the internal air duct of the motor. When high-temperature hot air is blown into the external pipeline from the internal air duct, the high-temperature hot air is cooled into low-temperature cold air through the cooler, and then the low-temperature cold air is blown into the internal air duct through the pipeline fan, so that the low-speed motor winding is cooled, a large amount of heat generated by the winding is taken away through heat exchange, and the temperature rise of the low-speed motor winding is reduced; therefore, the risk that the low-speed motor is damaged due to overhigh temperature rise of the winding is reduced, and the working reliability of the low-speed motor is effectively improved.

The utility model relates to the technical field of alkaline water hydrogen production electrolytic cell, specifically to a kind of alkaline water hydrogen production electrolytic cell with cooling device, including the end pole plate of alkaline water hydrogen production electrolytic cell, cooling cavity being arranged in the inside of end pole plate, the cooling cavity in the inside of end pole plate is connected with circulating cooling system;Further improved scheme also includes in the inside cooling cavity being connected with circulating cooling system in intermediate pole plate is set to the scheme of the utility model can reduce the temperature of end pole plate and intermediate pole plate place sealing washer, to improve the compression strength of this sealing washer, solve end pole plate and intermediate pole plate place sealing washer more easily failure, damage problem, improve the working reliability of alkaline water hydrogen production electrolytic cell, and effectively prolong the service life of alkaline water hydrogen production electrolytic cell.

The application discloses a non-magnetic ring proportional pressure reducing electromagnetic valve for a hydraulic system, a first through hole, a second through hole and a first blind hole are formed in the valve body, a pressure relief hole and a pressure inlet hole are formed in the side wall of the valve body, the pressure relief hole and the pressure inlet hole are communicated with the first through hole, a working hole is radially formed in the side wall of the valve body, the inner end of the working hole is communicated with the first through hole, and the outer end extends to the outer surface of the valve body, a valve core is axially movably installed in the first through hole, and a fifth outer groove and a first annular protrusion are arranged on the outer periphery of the valve core, the first annular protrusion forms an annular gap with the inner wall of the first through hole, a coil assembly is arranged in the yoke, a stop iron is fixedly arranged in the yoke through a mounting plate, and a magnetic circuit optimization structure is arranged on the outer surface of the stop iron. The magnetic circuit optimization and the multiple anti-sticking and friction-reducing designs are integrated, the independent magnetic ring is cancelled, the structure is simplified, the electromagnetic force, the response speed and the service life of the electromagnetic valve are comprehensively improved, the processing difficulty is obviously reduced, and the application range of the electromagnetic valve is widened.

This application relates to a sunshade curtain assembly, a glass assembly, and a transport vehicle, which can solve the problem of poor operational reliability of existing sunshade curtain structures. The sunshade curtain assembly includes a fixing base, a guide rail assembly, a roller, a pull rod, and a power source. The fixing base is located at one end of the guide rail assembly. The roller winds up the curtain fabric and is fixed to the guide rail assembly via the fixing base. The pull rod is telescopically oriented along its length, and its two ends are slidably connected to the guide rail assembly. The pull rod is parallel to the roller and connected to one end of the curtain fabric. The power source includes a first power output end connected to the pull rod and a second power output end connected to the roller. The first power output end drives the pull rod to slide along the guide rail assembly at a first speed and pull the curtain fabric, while the second power output end drives the roller to rotate so that the curtain fabric is wound or unwound at a second speed. The first speed and the second speed are equal.

The laser radar comprises a protective shell and a detection probe, a protective cylinder is installed on the surface of one side of the protective shell, an annular groove is formed in the surface of the protective cylinder, a constraint guide rail is installed on the surface of the side, close to the detection probe, of the annular groove, and a change unit is installed in the annular groove. The changing unit comprises a gear ring piece, a driving motor is installed on the surface of the inner wall of the protective barrel, the output end of the driving motor is connected with a gear piece, a scraper piece is arranged on the surface of one side of the gear ring piece, and a rotating motor and a micro air pump are installed on the surface of one side of the gear ring piece. The cleaning of the radar window is realized in a limited space, the working reliability and the detection continuity of the laser radar in a high-dust environment are improved, and a stable environmental perception guarantee is provided for the automatic operation of the roadheader.

The application relates to a cell structure integrated with a fin structure and a preparation method thereof and a SiC power device, and the structure comprises the following: a substrate; a super-junction epitaxial layer located on the top surface of the substrate and comprising two kinds of doped column gate structures with different conductive types, the doped column gate structures being located on the side of the super-junction epitaxial layer away from the substrate and extending along a first direction and being arranged at intervals along a second direction; a first fin structure located in the super-junction epitaxial layer between adjacent gate structures and comprising a first base region, a source region and a shielding region; the source region and the shielding region are alternately arranged along the first direction through the top surface of the first fin structure, and the first base region is arranged directly below the source region; a second fin structure located on the side of the gate structure away from the first fin structure; wherein the first fin structure is located directly above the doped column of the first conductive type; the bottom surface of the gate structure is not lower than the shielding region, and the top surface of the gate structure is lower than the top surfaces of the first fin structure and the second fin structure. The device channel mobility can be effectively improved, and the chip area can be reduced.

The application belongs to a valve structure, and aims at the technical problem that the existing electromagnetic valve for satellites is difficult to balance in response speed, power consumption, weight, environmental adaptability and long-term reliability, and provides a special medium axial flow self-locking electromagnetic valve for satellites, which adopts open coil, close coil and permanent magnet cooperation to drive the axial movement of armature, and keeps the valve open or closed after power off, so as to reduce the continuous power consumption and improve the reliability in satellite application. The axial flow fluid channel is formed through the internal channel of the framework, the peripheral channel of the armature and the internal channel of the valve seat assembly, so as to reduce the flow resistance and improve the medium flow capacity. The valve core and the valve seat assembly sealing surface are coaxially matched, the pre-tightening and buffering effect of the elastic member are beneficial to improve the sealing stability, reduce the impact wear and prolong the service life.

This utility model provides a protective mechanism for a vulcanized rubber extruder head, relating to the field of extruder head technology. It includes a mounting base, a clamping component disposed on the outer side of the mounting base, and clamping frames disposed on the outer sides of both ends of the mounting base for clamping the mounting base. A protective component is disposed on the outer side of the middle portion of the mounting base, and the protective frame is disposed on the outer side of the mounting base. The self-locking mechanism significantly increases the stability of clamping the mounting base, preventing displacement or loosening of the mounting base due to external forces or vibrations during clamping. This ensures more reliable protection of the extruder head. Furthermore, the self-locking structure maintains a fixed state after clamping, reducing the need for additional external force to maintain clamping and improving the convenience and safety of the mechanism. Simultaneously, the self-locking mechanism, with the coordinated action of all components, enhances the structural stability and operational reliability of the entire protective mechanism.

The utility model relates to the technical field of electrical connection devices, in particular to an auxiliary mechanism of a universal circuit breaker operating mechanism and the operating mechanism. The auxiliary mechanism comprises a first side plate, a second side plate and a bearing set. The bearing pack at least comprises a first rolling bearing, a second rolling bearing, a third rolling bearing, a fourth rolling bearing and a fifth rolling bearing which are arranged to radially limit the main shaft in a closed state; and the second rolling bearing, the third rolling bearing and the fifth rolling bearing are arranged to limit the main shaft in an opening state. Based on the auxiliary mechanism provided by the invention, compared with the related technology, the number of the rolling bearings in the bearing pack is increased, so that the two rolling bearings on the first side plate can radially limit the main shaft no matter the auxiliary mechanism is in a switching-on state or a switching-off state, and therefore, the position stability of the main shaft in the switching-on state and the switching-off state is improved.

A liquid-immersed cooling module according to an embodiment of the present disclosure may include: a housing containing cooling fluid at a predetermined water level; at least one unit housing housed inside the housing in a manner submerged in the cooling fluid, and forming flow channels for the cooling fluid to flow in and out of the unit housing, housing a battery module inside and being open at the top; and a condenser configured to liquefy the gas formed by the vaporization of the cooling fluid in the housing and reintroduce it into the housing in a liquid state, wherein the two sides of the battery module are spaced apart from the opposite inner sides of the unit housing to form flow channels for the cooling fluid, including porous moisture-absorbing components combined with the opposite sides of the battery module. The liquid-immersed cooling module of the present disclosure improves the efficiency and reliability of liquid-immersed cooling of the battery module, effectively reducing the power consumption of the entire device and achieving the effect of reducing carbon emissions.

The invention relates to a power interface device grid-side capacity control method and converter equipment, one side of each power interface device is connected with at least one converter, the other side of each power interface device is connected with a power grid, and when two or more power interface devices exist, the power interface devices are connected in parallel and then connected with the power grid. And for each power interface device, the grid-side current and the grid-side power of the power interface device are obtained, the power output reference value of each converter is adjusted based on the grid-side current, the grid-side power and a preset current threshold value, the power output of the converter is adjusted based on the adjusted power output reference value, and the power output comprises active output and / or reactive output. The power output of each converter is adjusted by taking the grid-side current limit value of the power interface device as a control target, so that the current flowing through the grid-side interface of the power interface device is controlled, the grid-side current is limited in a reasonable range, the condition that the capacity of a grid-side line exceeds the limit or is limited is avoided, and the service life of the power interface device is prolonged. And the working reliability of the converter equipment is improved.

This utility model provides an oil-filled deep well pump with a built-in controller, relating to the field of deep well pump technology. It includes an external protective housing, which is divided into a control chamber and a rotating chamber. A deep well motor is housed within the rotating chamber, and a controller is housed within the control chamber. The controller is covered with a cured protective layer formed by an insulating sealant. Multiple through slots are formed at the junction of the control chamber and the rotating chamber. The controller's lead wires extend through these slots to a terminal block on the top side of the external protective housing. The control chamber is filled with cooling oil, and a sealing cap is threaded to the bottom of the control chamber. This invention addresses the technical problems of current deep well pumps, which typically use external controllers. These problems include complex installation, poor protection, and insufficient heat dissipation. Furthermore, attempts to integrate the controller into deep well pumps face challenges such as difficult lead wire layout and low heat dissipation efficiency.

This utility model relates to the field of odor control technology in pulp and paper mills, specifically disclosing an odor stabilizing and safety device for the pulp industry. It includes a pressure-stabilizing tank vertically positioned between the odor collection outlet and the odor treatment equipment. An odor inlet pipe is centrally located at the lower end of the pressure-stabilizing tank, extending into the tank. An emergency odor outlet pipe is centrally located at the upper end of the pressure-stabilizing tank. A sealing pipe is inverted and placed above the odor inlet pipe inside the pressure-stabilizing tank. The sealing pipe is sealed at the top and open at the bottom, with its top not contacting the upper end of the odor inlet pipe. The vertical height of the sealing pipe should be greater than the liquid level difference formed by the maximum and minimum odor pressures. A clean water inlet pipe is located at the lower part of one side of the pressure-stabilizing tank, and an overflow pipe is located in the middle of the other side. This utility model has multiple functions, including odor network pressure stabilization, safety valve, and prevention of odor overflow. One set of equipment integrates the functions of multiple devices, saving both investment costs and installation space.

The utility model provides an air three -axis carrying equipment, simple operation can help the three -axis movement of material, avoid material to shake, and work reliability is high, and the floor area is small, and the production cost is low, including X axis movement subassembly, Y axis movement subassembly, X axis movement subassembly is installed Z axis movement subassembly, X axis movement subassembly includes X direction support beam, X direction movement module and installs on X direction support beam X direction slide rail, and the slide assembly of X direction slide rail is equipped with the mounting seat, and X direction movement module installs on the mounting seat, Y axis movement subassembly includes Y direction slide rail, Y direction movement module, Y direction movement module installs on X direction support beam to drive X direction support beam along Y direction movement, Z axis movement subassembly includes the Z direction movement module of installing on the mounting seat, Z direction telescopic mechanism, Z direction telescopic mechanism includes multistage nested type connection telescopic portion, and the movement end of the most lower telescopic portion and Z direction movement module all are connected with the connecting piece for connecting material to drive connecting piece along Z direction movement.

The utility model belongs to the technical field of circuit breakers, and discloses an electricity taking structure of a residual-current circuit breaker and the residual-current circuit breaker. The electric leakage circuit breaker comprises a handle, an electric leakage circuit board and an electromagnetic release. The electricity taking structure of the residual-current circuit breaker comprises a first conductive piece and a handle spring. Wherein one end of the first conductive piece is electrically connected to the electromagnetic release, and the other end of the first conductive piece is close to the handle; the handle spring is installed on the handle and comprises a fixed end and a movable end, the fixed end is electrically connected with the electric leakage circuit board, and the movable end can make contact with and be electrically connected with the first conductive piece along with switching-on of the handle so that the electric leakage circuit board can be powered on and can be separated from the first conductive piece along with switching-off of the handle so that the electric leakage circuit board can be powered off. The electricity taking structure of the electric leakage circuit breaker can effectively disconnect the electric leakage loop under the condition of reverse wiring of the electric leakage circuit breaker, effectively reduces the failure risk of the electric leakage circuit breaker, and is simple in structure, low in cost and high in working reliability.

The hopper car discharging adjusting mechanism comprises a car hopper, door plates, hydraulic rods and discharging mechanisms, openings are formed in the front side and the rear side of the car hopper, the door plates capable of ascending and descending are installed at the openings, the door plates are driven by the hydraulic rods to be controlled to be opened and closed, the discharging mechanisms are arranged on the two sides of the car hopper, and each discharging mechanism comprises a fixed material guide groove, a movable material guide groove and a driving piece. The fixed guide groove is fixed to the side face of the car hopper, the movable guide groove is connected with the fixed guide groove, the driving part comprises a lead screw, a motor, a connecting block, a driving plate, a guide rail and a movable plate, the lead screw is in threaded fit with the driving plate, the guide rail is slidably connected with the movable plate, and the motor drives the lead screw to rotate to drive the movable guide groove to conduct telescopic adjustment. The hydraulic rod can be used for controlling the door plate to be lifted to achieve directional ballast discharging, the motor drives the lead screw to adjust the length of the guide groove, and therefore the discharging range is flexibly adjusted, and the problems that in a traditional structure, discharging is uncontrollable, laying is uneven, and the guide groove is prone to shaking are solved.

This utility model discloses a crankshaft pulley, an engine, and a vehicle. Relating to the field of engine technology, the crankshaft pulley includes: a crankshaft assembly located on one side of the pulley body and fixed to it; a first protrusion structure located on the same side of the pulley body as the crankshaft assembly, the first protrusion structure being arranged circumferentially around the crankshaft assembly along the pulley body and spaced apart from it; a guide groove formed on the sidewall of the first protrusion structure facing the crankshaft assembly, extending axially along the pulley body; when the crankshaft pulley rotates, material on the side of the first protrusion structure facing the crankshaft assembly can move through the guide groove to the material outlet. Therefore, by providing the guide groove, the failure rate of crankshaft oil seal leakage is reduced, thereby improving the operational reliability of the engine and vehicle.

The application relates to a high-strength sorting machine frame and relates to the field of sorting machine frames. The high-strength sorting machine frame comprises a bottom frame, a supporting piece and a top frame, the top frame is horizontally arranged above the bottom frame, the supporting piece is vertically arranged between the bottom frame and the top frame, assembling frames are vertically fixed on the adjacent end faces of the bottom frame and the top frame, two supporting pieces are symmetrically arranged, the two supporting pieces are arranged on the front and back sides of the bottom frame and the top frame, the supporting piece comprises a reinforcing horizontal plate and a supporting assembly, the reinforcing horizontal plate is horizontally arranged between the bottom frame and the top frame, the two ends of the reinforcing horizontal plate are vertically provided with the supporting assembly, the supporting assembly comprises a stand column, a center plate is horizontally fixed at the center of the stand column, one side of the center plate is fixedly connected with the end of the reinforcing horizontal plate, and assembling insertion frames are vertically fixed on the upper and lower ends of the stand column. The application focuses on the stand column or the bottom frame and the top frame, the overall strength of the sorting machine frame is increased, and the weight of the sorting machine frame is reduced.

The utility model relates to the technical field of grinding device cooling, and discloses an inclined spraying type rotating shaft for a grinding wheel, which comprises a first shaft body and a second shaft body, the flow guide channel penetrates through the outer wall of the first shaft body; the included angle between the center line of the liquid outlet of the flow guide channel and the axis of the first shaft body is an acute angle; the second shaft body is used for coaxially installing a grinding wheel. The grinding wheel cooling device has the effect that the grinding wheel with the short length can be cooled conveniently.

The utility model discloses an anti -oscillation circuit and power supply thereof. The anti -oscillation circuit includes voltage dividing unit, temperature response unit and voltage regulation unit, voltage dividing unit is connected with the input of power module and voltage regulation unit, is used for dividing voltage of power module input voltage according to the preconcerted ratio, provides voltage dividing voltage for voltage regulation unit, temperature response unit is connected with the input of power module and voltage regulation unit, is used for providing bias voltage for voltage regulation unit, and adjusts bias voltage according to environmental temperature change, voltage regulation unit still is connected with the enable end of power module, is used for adjusting own on -resistance according to bias voltage, thereby adjusts the voltage of power module enable end. The utility model embodiment can automatically compensate the temperature drift of power module enable threshold under different temperature environment, effectively prevents the power module from generating oscillation near the under -voltage point, improves the working stability and reliability of power module under extreme temperature environment.

This utility model discloses a reusable, long-life pre-pump filter, belonging to the field of air purification equipment. The filter mainly consists of a filter cartridge body, a top cover, and a filter medium. A cooling component is installed at the top of the top cover to cool the dust-laden gas, causing changes in the physical properties of dust particles and improving the separation efficiency of dust and gas. The cooling component achieves efficient heat dissipation through a heat-conducting plate, a cooling fan, and heat dissipation fins. A sealing plate is installed at the bottom of the top cover to enhance the sealing performance. The air inlet and spiral groove cooperate to form a spiral airflow that is evenly distributed inside the filter cartridge. The baffles inside the filter cartridge can buffer and guide the airflow, allowing the gas to pass through the filter medium more evenly. The overall structural design is optimized, solving the problems of low filtration efficiency, easy clogging, and insufficient stability and sealing of traditional filters in complex dusty environments. It can effectively purify dust-laden gas and has good application prospects.

The utility model relates to the technical field of intelligent transportation, concretely relates to high -speed toll station vice node railing machine, including railing machine body, set up on railing machine body and show module of fee of snapshot module and, snapshot module and show module of fee set up in the one side of railing machine body front end facing the lane transaction area, be provided with communication module in the railing machine body, this communication module is used for with ETC lane antenna carries out data interaction, and the transaction data of lane antenna is received through communication module and is shown through show module of fee of railing machine body, the lower extreme of pole machine body is provided with base, and the fixed part of base and setting in the bottom of railing machine body is connected in sliding fit, and the bottom of base is the sliding fit connection of sliding slot and sliding rail, the utility model relates to a kind of high -speed toll station vice node railing machine, solve the problem that multiple stand, construction complex caused by traditional ETC lane snapshot and fee show device independent setting, railing machine is simultaneously realized convenient installation and position adjustment by sliding base.

The utility model provides an automatic monitoring system for a bag-type dust collector, which comprises a middle box body and a blowing system, an air duct is arranged in the middle of the middle box body, a dust collection box chamber and an air purification chamber are arranged on two sides of the air duct, the air duct is divided into an air inlet duct and an air outlet duct by an air duct inclined plate, an air inlet is arranged on the air inlet duct, and an air outlet is arranged on the air outlet duct; the blowing system is mounted on the air purification chamber and comprises a plurality of blowing pipes which are aligned to the opening parts of the filter bags and blow air inwards, and sensors for monitoring pressure and temperature are arranged on the blowing pipes, so that the filtering efficiency of dusty gas is improved by adopting the symmetrical dust removal box chambers, the dust removal effect of the cloth bags is improved, and the dust removal efficiency of the cloth bags is improved. Meanwhile, parameter monitoring is carried out on each tube bundle by adopting a pressure sensor and a temperature sensor, and related threshold values are set so as to give an alarm in time and monitor the sealing performance of the pulse valve, so that leakage can be found in time, and the working reliability of the bag-type dust collector is improved.

This utility model discloses a telescopic compensation type layered water injection sealing device, which includes a rubber sleeve and a spring. The upper and lower rubber sleeves, installed outside the upper and lower water injection pipes respectively, have hydraulic chambers one and two connected by a connecting hose. A pressure transmission hole in the upper water injection pipe, connected to hydraulic chamber one, is connected to a hydraulic pump on the ground via a hydraulic pipeline. The upper and lower water injection pipes are connected by a telescopic compensation mechanism. The spring is installed between the sealing cylinder and the telescopic sleeve in the telescopic compensation mechanism. The upper water injection pipe, sealing cylinder, corrugated pipe, sealing sleeve, and a fixing ring installed outside the lower water injection pipe and below the telescopic sleeve are sequentially fixedly connected. The lower water injection pipe can move up and down within the telescopic sleeve and the fixing ring. The telescopic compensation mechanism absorbs vibration energy generated during water injection and compensates for sealing gaps. This device is suitable for high-efficiency layered water injection tubing in oilfield development, providing vibration and creep prevention effects.

The utility model discloses a kind of power supply control device of robot system MCU, including battery access circuit, adapter access circuit, first diode, second diode, charging circuit, adaptation access detection circuit, first power conversion circuit and second power conversion circuit, first diode positive and negative two ends are connected adapter access circuit output end and first power conversion circuit input end respectively, second diode positive and negative two ends are connected battery access circuit output end and second power conversion circuit input end respectively, adaptation access detection circuit connects robot system MCU and adapter access circuit output end, charging circuit input end and output end are connected adapter access circuit output end and battery access circuit respectively.The utility model makes robot system still can work under the condition that battery has no electricity, can improve the work efficiency of robot, so that robot can work for a long time.