1644results about How to "Improve maintenance efficiency" patented technology

The invention discloses an electric power distribution method convenient for maintenance. By arranging a second threaded column (21) and an extrusion plate (22), when the second threaded column (21) rotates, the extrusion plate (22) can be driven to rotate, then the extrusion plate (22) can drive a friction pad (27) to rotate, and when the friction pad (27) is connected with the lower surface of the inner wall of a shell (1) in a lap joint mode, a support plate (17) can be fixed; and by arranging a stop block (28), when the back face of a second protection plate (10) is connected with the front face of the stop block (28) in a lap joint mode, a first threaded column (13) can be more conveniently connected with a second threaded sleeve (14), and therefore the second protection plate (10) can be better fixed. The electric power distribution method convenient for maintenance has the advantages that the structure is compact, the design is reasonable, and the practicability is high.

A kind of power device parallel type power module and capacitor charging and discharging method, power module includes two or more than pressure type power device, the two or more than pressure type power device adopts the physical form of half bridge group string upper and lower parallel;The half bridge group string of the pressure type power device is connected in parallel by silicon pile composite busbar;Each power module is provided with pneumatic short-circuit switch, in the case of multiple power module series connection, the pneumatic short-circuit switch is connected in series with all DC capacitors, and charging and discharging is carried out through the ground loop of flexible AC transmission equipment AC, DC valve side;The pneumatic short-circuit switch is connected with gas driving pipeline, and the gas driving pipeline is connected with valve-based gas pressurizing device.The power module can effectively improve the capacity of flexible AC transmission equipment, so that it has short-time frequency modulation capacity output, provides technical scheme support for new power system construction, and guarantees system safety and stability;The provided capacitor charging and discharging method can improve maintenance efficiency and enhance product reliability.

The invention relates to a distribution network maintenance topology identification system based on multi-source data fusion, and the system achieves the effective integration and precise processing of multi-source power distribution network data through the cooperative work of a multi-source data collection module, a data preprocessing module and a measurement generation module, and remarkably improves the temporal-spatial resolution of the state quantity of a distribution network. According to the method, a confidence evaluation system is constructed, and an algorithm confidence evaluation system is used for carrying out confidence scoring on an output identification structure, so that the uncertainty of an identification result can be quantified, and the availability and reliability of the system in an actual complex environment are greatly improved; through seamless connection and data interaction between a database and a marketing system and a scheduling system, the applicability and effectiveness of the system in an actual maintenance scene are ensured, accurate and reliable topology identification support can be provided for power distribution network maintenance, and the maintenance efficiency and the power supply reliability are improved; the method has the advantages of being high in self-adaption, accurate and reliable.

The invention relates to a data acquisition monitoring method and device for industrial equipment, equipment and a storage medium. The method comprises the following steps: receiving data acquisition data from different PLC devices through a unified configuration entry, and mapping the data acquisition data based on PLC device identifiers and variable point location identifiers to obtain a structured data set; writing the structured data set into a data acquisition database, and dynamically synchronizing the structured data set to an MES database of an MES system through an API interface; and receiving a control instruction generated by the MES system based on the structured data set, converting the control instruction into a PLC execution instruction, writing the PLC execution instruction into the corresponding PLC equipment, and continuously monitoring the execution state of the PLC equipment in the process of executing the PLC execution instruction so as to update the data in the data acquisition database. By adopting the method, the system configuration complexity can be reduced, and the collaboration and maintenance efficiency of industrial data acquisition monitoring are improved.

The utility model provides an IBE ion beam etching device convenient to maintain, which comprises a cavity body, a target material is connected in the cavity body, a carrying table mechanism is arranged above the target material, the carrying table mechanism is connected with the cavity body through a rotary driving mechanism, a wafer substrate to be coated is arranged on the carrying table mechanism, one side of the cavity body is connected with a first access door, and the other side of the cavity body is connected with a second access door. The other side of the cavity body is connected with a second access door and located on the opposite side of the first access door, the first access door and the second access door are both hinged to the cavity body through hinges, a first installation opening is formed in the lower portion of the first access door, the first ion source is connected with the first installation opening, and a second installation opening is formed in the upper portion of the second access door. The second ion source is connected with the second mounting port, and when the first ion source or the second ion source breaks down, maintenance is carried out by opening the corresponding first access door or second access door; and by arranging the first access door and the second access door, the maintenance efficiency is greatly improved, and the maintenance is very convenient.

This utility model relates to the field of generator set maintenance technology, and in particular to a generator set fault location circuit. A voltage acquisition element measures and collects voltage waveform signals from the generator terminals and the low-voltage side of the main transformer; a current acquisition element measures and collects the zero-sequence currents from the generator terminals, the high-voltage side of the excitation transformer, the low-voltage side of the main transformer, and the high-voltage side of the high-voltage transformer; the fault location element transmits data through a signal transmission interface connected to the terminals of the current acquisition element. This system can accurately determine the location of a single-phase ground fault, narrowing the fault location range and improving maintenance efficiency. The optical current transformer is unaffected by conductor spatial arrangement and magnetic field imbalance, accurately measuring zero-sequence current with a wide measurement range and no saturation problem. The insulating frame of the primary sensing unit can be designed according to the size and arrangement of the three-phase conductors being measured in the protected generator set, without strict requirements on conductor shape, size, and arrangement, facilitating installation and maintenance.

The utility model discloses a multi-point oxygen supply device for freshwater aquaculture, which comprises an oxygen pipeline, and mounting mechanisms are fixedly mounted on one side of the oxygen pipeline at equal intervals in a linear arrangement manner. By the adoption of the structure, the mounting mechanism is arranged, the dismounting, mounting and overhauling efficiency of the oxygen supply assembly can be improved, during mounting during use, the limiting spring pushes the sliding block, the connecting arm and the limiting block to act, the limiting block is clamped with the clamping groove of the external pipe, rapid fixing of the sleeving head and the external pipe is achieved, and the service life of the external pipe is prolonged. During overhauling, the corresponding adjusting valves can be independently adjusted to close a fault pipeline, normal oxygen supply of other assemblies is not affected, meanwhile, the adjusting plates drive the guide frames and the movable blocks to extrude the pushing blocks, the connecting arms are expanded to enable the limiting blocks to be separated from the clamping grooves, the sleeve connectors can be rapidly disassembled, overhauling time is shortened, and the overhauling efficiency is improved. And the maintenance cost is reduced while stable operation of the oxygen supply system is ensured.

The utility model relates to the technical field of traffic tools, and disclose an electric tricycle front wheel brake assembly, including: fixed ring, the inside of fixed ring outer surface is pasted with dish disc. This electric tricycle front wheel brake assembly, aiming at the defect that traditional integral brake disc cannot be replaced locally, innovatively adopts modularization design to brake disc, is divided into four parts on average, and users can accurately disassemble and replace the seriously worn dish disc according to the actual wear condition of each part, avoid the resource waste caused by replacing the entire brake disc due to local wear, greatly reduce the maintenance cost, and in the convenience of disassembly, the unique disassembly mechanism plays a key role, through the simple screwing of the nut, the disassembly of the screw, the rotation of the clamp and other operations, the locking of the dish disc can be quickly released, and it is taken out from the fixed ring, the whole process does not need complex professional tools, and does not need professional technical personnel operation, significantly improves the maintenance efficiency, and reduces the maintenance difficulty.

The application discloses a kind of depot train wheelset rapid detection and maintenance positioning device and method, belong to train wheelset detection technical field, rotating jacking mechanism will be contacted with wheelset axle and lift wheelset from the rail of maintenance platform, and drive its rotation, rail and wheel are provided with flange detection component, flange detection component can be continuously checked and explored by mechanical probe rod and ultrasonic probe, wheel side detection component is set on rotating jacking mechanism, wheel side detection component is detected to wheel side by laser scanning detector, flange detection component and wheel side detection component are transmitted to host computer, and the mechanical model of both sides wheel is formed in host computer and shows damage point, host computer controls the stepping motor movement of rotating jacking mechanism, damage point can be selected by host computer screen, and rotating jacking mechanism is controlled to rotate slowly, finally make damage point stay to the exploration point of ultrasonic probe or laser scanning detector, it is convenient for maintenance personnel to identify suspicious damage point.

The application provides a passive tag firmware upgrading method and device, equipment and a storage medium, relates to the technical field of communication, solves the problem that the related art firmware upgrade of the passive tag easily leads to the failure of the passive tag, and the scheme stores the fragmented data packet in the random access memory when the fragmented data packet corresponding to the to-be-upgraded firmware is received, acquires the voltage parameter of the energy storage capacitor in real time, and writes the fragmented data packet into the first storage area of the nonvolatile memory when the voltage parameter is greater than the preset threshold. In the case where all the fragmented data packets are written into the first storage area, the to-be-upgraded firmware is verified; in the case where the to-be-upgraded firmware passes the verification, the firmware upgrading operation is performed to stop running the original firmware stored in the second storage area of the nonvolatile memory and running the to-be-upgraded firmware. The scheme effectively reduces the occurrence of the failure of the passive tag and improves the maintenance efficiency of the passive tag.

The utility model provides a full -color adjustable light LED lamp drive control device relates to LED lamp drive control technical field, including the shell, the outside of shell is provided with convenient dismounting mechanism, and convenient dismounting mechanism includes quick -mounting shell, and the inside sliding joint of quick -mounting shell has quick -mounting block, and the front fixedly connected with the central controller of quick -mounting block, and the inner wall of quick -mounting shell is fixedly connected with first magnetic plate, first signal contact, first power contact and signal socket respectively, and the inner wall of quick -mounting block is fixedly connected with second magnetic plate, second signal contact and second power contact respectively. This full -color adjustable light LED lamp drive control device cooperates with each other through shell, quick -mounting shell, quick -mounting block, central controller, first magnetic plate, second magnetic plate, first signal contact, first power contact, signal socket, second signal contact, second power contact, battery and charging head, and the charging head can connect the external power cord and charge the battery, and the quick -mounting block can be inserted into quick -mounting shell.

This utility model discloses an automatic unloading and docking device for tool processing, including a housing and a filter screen. A tool assembly is disposed inside the housing, and an L-shaped connecting plate is disposed inside the housing. A turntable assembly is disposed at the top of the L-shaped connecting plate, and a fixing plate is fixedly installed at the bottom of the L-shaped connecting plate. A cleaning assembly is disposed at the top of the fixing plate. This utility model releases air by opening the sealing cover, causing the inflatable sealing ring to contract and releasing the locking of the sealing ring block. This allows the sealing ring block to rotate, driving the filter screen to rotate and quickly clearing clogged impurities without disassembling the filter box, significantly shortening cleaning time. After cleaning, the sealing ring block resets and is inflated by a dual-head air pump, causing the sealing ring to tightly adhere to the inner wall of the filter box, re-forming a reliable seal to prevent liquid leakage. By combining sealing and cleaning functions, this device simplifies maintenance procedures, reduces downtime, lowers the complexity of manual operation, and improves equipment usability and maintenance efficiency.

The utility model discloses a quick dismounting's modularization photovoltaic controller belongs to photovoltaic equipment technical field, including fixed frame, the front of fixed frame is equipped with two connecting strips, the back of every connecting strip all is connected with two hooks, and the inside of fixed frame is provided with two groups of mounting holes, and the front of every mounting hole all is equipped with fastening screw rod, and the front of two connecting strips is commonly installed with integrated box through bolt, through adopting the design of double hook and fixed frame cooperation, not only can fastly complete the preliminary fixation of overall device, and greatly shorten the installation time, and simultaneously utilize fastening screw rod to further ensure the stability of installation, avoid the device loosening because of external vibration and other factors, and the quick dismounting of modularization photovoltaic control module is realized through positioning hole and positioning bolt, when the failure of certain module appears, need not to disassemble whole device, just need to screw down positioning bolt to replace, greatly reduced maintenance difficulty and cost, improved maintenance efficiency.

The utility model discloses a kind of automatic extraction machines for health food production, it is related to extraction machine technical field, including extraction machine main body, two baffle are fixedly installed on the extraction machine main body, the opposite end of two baffle is fixedly installed with connecting block, the lower end of two connecting blocks is fixedly installed with guide rod, the circumferential surface of two guide rods is slidably installed with limit lifting plate, two limit lifting plates are fixedly installed with waste collecting plate between, the top rod is slidably installed on two limit lifting plates, the height of the waste collecting plate of the new type can be flexibly adjusted, this characteristic makes it can perfectly adapt to various different height of separating funnel, greatly expand the application range of equipment, whether small or large separating operation can guarantee the effective collection of waste and waste liquid, avoid the inconvenience of operation and resource waste due to equipment mismatch.

The utility model relates to cable connection protection technical field discloses a sheath pipe structure for two cable joints, including upper casing, the outer wall fixed connection of upper casing has the connecting barrel, the inner wall rotationally connected with press column of connecting barrel, the lower surface fixed connection of press column has rotary column, the inside fixed connection of rotary column has the card post, the outer wall sliding connection of card post has the limit block, the outer wall fixed connection of limit block has lower casing, the inner wall fixed connection of connecting barrel has the limit piece, the outer wall sliding connection of rotary column has the spring. In the utility model, through the mutual cooperation between upper casing, connecting barrel, press column, rotary column, card post, limit block, limit piece, spring and lower casing, can greatly promote installation and maintenance efficiency, significantly reduce construction time and manpower cost, can simplify operation procedure simultaneously, reduce the dependence on professional tool and complex skill, reduce installation error risk.

This invention provides a connection structure for air conditioning pipes, relating to the field of air conditioning pipe connections. It includes: a connecting pipe, a fixing plate, sealing washers, a connecting nut, a connecting platform, a connecting plate, an audible and visual alarm, and a fixing rod. The fixing plate is fixedly connected to the middle of the connecting pipe. The connecting nut is threadedly connected to the left and right sides of the connecting pipe. The sealing washers are located on the left and right sides of the connecting pipe. The connecting platform is fixedly connected to the outside of the connecting nut. The connecting plate is threadedly connected to the outside of the connecting platform. The audible and visual alarm is fixedly connected to the outside of the connecting plate. The fixing rod is fixedly connected to the middle of the connecting pipe. This invention avoids situations where the connection lengths of the copper pipes on both sides differ excessively, ensuring the tightness of the air conditioning pipe connection, improving the connection effect of the air conditioning pipe, and enhancing the usability of the connection structure. It solves the problem that existing connection structures easily affect the connection effect of air conditioning copper pipes and the usability of the connection structure itself.

This utility model discloses a modular electro-oxygen synergistic water treatment device, belonging to the field of industrial water treatment technology. It includes a treatment tank with conduits installed on both sides and electrodes installed on both the front and rear sides. The top of the treatment tank is open and fitted with a cover plate. Multiple positioning holes are provided on the cover plate, with plug plates movably connected within each hole. Multiple slide rails are installed on the front and rear inner walls of the treatment tank, with the same electro-oxygen plate slidably mounted between corresponding two slide rails. Through the positioning holes on the cover plate and the movable plug plates, combined with a unique clamping mechanism, rapid installation and removal of the electro-oxygen plate are achieved. Operators only need to rotate a screw to drive a wedge-shaped top plate, which can then clamp or release the electro-oxygen plate via two insulating clamps. Replacement can be completed without tools, greatly improving maintenance efficiency and operational convenience.

The invention belongs to the technical field of anti-leakage systems for hydraulic stations of rear girders of quay cranes, and particularly relates to an anti-leakage system and method for a hydraulic station of a quay crane. Comprising a data acquisition module used for acquiring an oil tank liquid level signal of a shore bridge hydraulic station and at least one real-time working condition signal of a shore bridge in real time; and the data processing and control module is electrically connected with the data acquisition module. Liquid level fluctuation and real leakage caused by normal actions (such as cart movement and oil cylinder action) of equipment are effectively distinguished, and the problems that a traditional low-liquid-level alarm device is high in false alarm rate and lags in alarm are fundamentally solved.

This utility model discloses a heavy-duty gear, specifically relating to the field of heavy-duty gear technology. It includes a gear disk with a plurality of tooth blocks arranged in a ring on its outer wall. A connecting structure is provided at the connection between the tooth blocks and the gear disk. The connecting structure includes a mating plate, which is fixedly installed on the bottom of the tooth blocks. A mating groove is formed on the surface of the gear disk, and a positioning groove is formed at the bottom of the inner cavity of the mating groove. A positioning block is fixedly installed at the bottom of the mating plate. Mounting grooves communicating with the mating grooves are formed on both sides of the outer wall of the gear disk. Mounting plates are fixedly installed at both ends of the mating plate. Fastening bolts are provided at the connection between the mounting plates and the gear disk. This utility model facilitates the installation of shafts and gear disks. Furthermore, once a single tooth block on the gear is worn or damaged, it allows operators to easily disassemble and replace the damaged tooth block, reducing gear maintenance costs and improving service life and performance.

The utility model relates to the technical field of hydraulic transmission parts in ground spring door control system discloses three -segment type variable curvature cam ground spring hydraulic transmission assembly, including the shell, the inside fixed connection of shell has the bearing, the inside fixed connection of bearing has the connecting rod, the outer wall fixed connection of connecting rod has the disc, the inside of shell is provided with resistance assembly, the upper surface of shell is provided with the apron, the inside of apron is provided with screw nail, the lower surface rotation is connected in the inside of shell of disc, the outer wall screw thread connection in the inside of shell of screw nail. In the utility model, in the utility model, through pushing the door and driving the connecting rod rotation, the connecting rod drives disc 4 rotation, disc pushes the gyro wheel rotation, gyro wheel drives the pressure rod and makes second spring contract or release the elastic force, thereby reaches the effect that the curvature of disc 4 gradually changes according to the door body opening angle.

The utility model relates to a radiator, PCB (printed circuit board) and power tube combined structure, in particular to a radiator, PCB and power tube combined structure convenient to install. According to the structure, a plurality of connecting through holes are formed in a radiator body in the vertical direction, and each connecting through hole comprises a connecting blind hole formed in the upper side of the radiator body and a connecting bottom hole formed in the bottom of the connecting blind hole; a plurality of connecting holes are formed in the mounting substrate, and the connecting holes correspond to the connecting bottom holes one to one; a plurality of through holes are formed in the PCB body; and the plurality of fasteners are respectively arranged in the corresponding connecting blind holes. According to the utility model, the problems that the layout and the strength are influenced by too large holes in the PCB and the assembly efficiency is low due to the fact that fasteners are easy to fall off and difficult to install during installation can be avoided. And the fastener does not need to be taken out during each disassembly, and only the fastener needs to be withdrawn from the connecting hole, so that the fastener is blocked by the PCB and cannot be separated from the blind hole of the radiator, thereby achieving the effect of no loosening, and improving the maintenance efficiency.

The utility model relates to mechanical arm technical field discloses a kind of lightweight mechanical arm structure and manipulator, including base, the top of the base is fixedly connected with mounting support, the top of the mounting support is rotatably connected with rotating support, the top of the rotating support is rotatably connected with mechanical arm body, the outside electrical connection of the mechanical arm body is connected with connecting wire, the outside right side front and rear ends of the mechanical arm body are fixedly connected with mounting bracket, the outside right side sliding connection of the mechanical arm body has extension column. In the utility model, press rotating clamping plate to make positioning clamping rod disengage from clamping groove, can pull extension column and adjust length;Loosen after in place, install spring rebound and let clamping rod tightly clamping groove fixed, it is easy to operate, can flexibly adjust mechanical arm length, spring power fixing is stable, adapt to different operation range requirement, improve the versatility and operating convenience of mechanical arm, ensure that the structure is stable and reliable after adjusting.

The utility model relates to portable crop pest killer technical field especially portable crop pest killer, including pest killer shell, the pest killer shell is provided with connecting mechanism, the connecting mechanism contains the first assembly of setting in the pest killer shell upper section, the second assembly is provided with in the pest killer shell middle section, the third assembly is provided with in the pest killer shell lower section. Portable crop pest killer adopts the physical pest killing mode of double pest killing lamp first pest killing lamp and second pest killing lamp combination airflow suction, avoids the use of chemical pesticide, effectively reduces the pollution to the ecological environment such as soil, water source, the top drive motor drives the fan blade to produce downward airflow, the bottom exhaust fan provides strong suction, both cooperate with each other, accelerate the pest to move to the pest killer inside and transport to the collecting cylinder, again cooperate with the control of the falling rhythm of the pest of rotary plate and fixed baffle, significantly improve the pest trapping and collection efficiency, and the pest killing effect is greatly promoted.

This application relates to a scheduling method, apparatus, computer equipment, storage medium, and computer program product for power operation tickets. The method includes: dividing the fields to be verified in the power operation ticket into regions based on the correlation characteristics between them and their location characteristics; verifying the fields in each region to obtain a verification result for each region; weighting the verification values ​​of each result according to the type of the result and the order of the regions to obtain a weighted verification result for the power operation ticket; and distributing power operation tickets according to the operation objects matched by the weighted verification values ​​in the weighted verification result. This method eliminates the need for manual verification of the fields to be verified, reducing the verification time for power operation tickets and thus improving the efficiency of power system maintenance.

The utility model discloses a robot foot sole, a robot leg and a robot. The foot sole comprises a foot sole supporting piece, a foot sole mounting piece and an elastic piece. The plantar supporting piece comprises a plantar supporting outer surface far away from one side of the robot and a plantar supporting inner surface close to one side of the robot, and a plantar supporting mounting part is arranged on the plantar supporting inner surface; the plantar mounting piece is detachably connected with the plantar supporting mounting part; the elastic piece is arranged in the sole supporting piece; the foot sole mounting piece is detachably connected with the foot sole supporting mounting part, so that the foot sole supporting piece is convenient to disassemble and assemble, the operation time is greatly shortened, and the maintenance efficiency is greatly improved; the elastic piece is arranged in the sole supporting piece, the mechanical damping function is achieved, the sole supporting piece can be made of a hard material, then the abrasion resistance of the sole supporting piece is improved, meanwhile, it is guaranteed that the sole has the good buffering performance through the arrangement of the elastic piece, and the selection contradiction problem of damping performance and durability in a traditional structure is solved.

The utility model discloses a smoke exhaust fireproof valve convenient to maintain, which relates to the technical field of fireproof valves and comprises a valve body, a connecting seat is arranged at the top end of the valve body, a valve plate is arranged in the center of the inside of the valve body, a fixing plate is vertically arranged in the middle of the valve plate, and four cross-shaped inserting rods are arranged on the side wall of a valve rod. Cross-shaped inserting grooves matched with the four cross-shaped inserting rods are formed in the positions, corresponding to the four cross-shaped inserting rods, of the fixing plate, and a fixing sleeve is detachably arranged on the front side of the fixing plate. The cross-shaped inserting rod is matched with the cross-shaped inserting groove, rapid inserting installation between the valve plate and the valve rod is achieved, the cross-shaped fixing groove in the fixing sleeve is further matched with the inserting rod in an inserting mode, and when the valve plate needs to be maintained or replaced, only the fixing bolt on the fixing sleeve needs to be screwed out, the fixing sleeve is taken down, and the valve plate can be assembled and disassembled. And the valve plate can be easily detached from the valve rod, the operation is simple and convenient, and the maintenance efficiency is greatly improved.

The utility model discloses a kind of placing equipment for concrete pipe pile maintenance, including pipe pile maintenance and placing assembly, pipe pile maintenance and placing assembly include the mounting bracket of setting, steam furnace of setting at mounting bracket top surface, first sliding rail fixed in steam furnace inside, with the sliding slot frame of first sliding rail sleeve, with the arc-shaped placing rack of sliding slot frame fixed, first cover plate and second cover plate connected at the both ends of steam furnace;Switching butt joint component, switching butt joint component includes the round hole of being opened in the side wall of mounting bracket, the guide rod inserted into round hole, with the connecting plate of guide rod fixed.The utility model is cooperated by the intercoordination of pipe pile maintenance and placing assembly and switching butt joint component, forms the structural design of double-port butt joint discharge, when maintenance is completed, directly push new concrete pipe pile, the concrete pipe pile of maintenance is removed from another end in pushing process, so it is not necessary to wait for long time to transfer concrete pipe pile, greatly improve concrete pipe pile maintenance efficiency.

This utility model relates to the field of mold technology and discloses a high-plasticity ultra-high molecular weight polyethylene pipe production mold, including a mold component. The mold component includes a shell part and a core part coaxially arranged. A forming cavity for extrusion is formed between one end of the shell part and the core part. The core part includes a detachably connected movable part and a stepped shaft core. The movable part can reciprocate along the axis of the shell part. The diameter of the stepped shaft core gradually decreases from one end near the movable part to the other end. By setting the shell part and the movable core part, this utility model allows the thickness of the forming cavity between the stepped shaft core and the shell part to be changed by adjusting the position of the stepped shaft core when producing polyethylene pipes. This enables the device to produce polyethylene pipes with different inner diameters without the need for different specifications of molds, thereby increasing the applicability of the device.

The utility model relates to the technical field of carbonization furnace, and disclose self -heating sectional type biomass carbonization furnace, including heat -exchangeable heating part and carbonization part, the carbonization part detachably set in heating part top, and heating part top recess forms the recess, the carbonization part outside forms the protruding part matched with recess, and the carbonization part inside forms the inner chamber containing raw material to be carbonized, the heating part inside forms the combustion chamber containing fuel, and heating part one side opens and forms the feeding hole communicated with combustion chamber, the utility model discloses through setting detachable heating part and carbonization part, utilize the protruding part on carbonization part and recess on heating part and engage, make carbonization part install to the top of heating part, when needing to maintain device, if carbonization part goods heating part one of parts is damaged, only need to maintain corresponding heating part goods or carbonization part, do not need integral dismounting replacement, reduce the difficulty of maintenance and use cost in later period, improve maintenance efficiency.

A hidden drainage ditch system of a building curtain wall comprises a drainage ditch, a cover plate is installed on the drainage ditch, a water inlet is further formed in the upper portion of the drainage ditch, and the hidden drainage ditch system further comprises a filtering assembly arranged at the water inlet. The filtering assembly further comprises a primary filtering piece and a secondary filtering piece; the primary filter part comprises a barrier plate mounted at the water inlet, and a drainage gap for water flow to pass through is formed between the barrier plate and the water inlet; the secondary filtering piece comprises a filtering plate and a plurality of leakage holes formed in the filtering plate. According to the utility model, the blockage problem of the drainage ditch can be further relieved, and the maintenance intensity of the drainage system can be effectively reduced, so that the reliability and stability of the drainage system are enhanced.