81results about How to "Reduce daily maintenance workload" patented technology

The invention provides a high-COD (Carbon Oxide Demand) special non-phosphorus corrosion and scale inhibitor and preparation method thereof. The corrosion and scale inhibitor mainly comprises cyclodextrin or cyclodextrin derivatives, a soluble metal salt, a copolymer containing a sulfonic acid group, a homopolymer containing carboxylic acid, an acrylic acid / ethyl acrylate / 2-acrylamide-2-methallylsulphonate copolymer, tetrahydroglyoxaline matters, sodium gluconate, and quaternary ammonium salt. The non-phosphorus corrosion and scale inhibitor is suitable for an open circulated cooling water system, and suitable for surface water high in COD and free of treatment, and the non-phosphorus corrosion and scale inhibitor is added into the circulated cooling water system by an automatic reagent feeding device. The non-phosphorus corrosion and scale inhibitor is environmentally-friendly, avoids using phosphorous compounds or non-renewable molybdate or tungstate, has the characteristic of being free from phosphorus and nitrogen, meets the requirement of environmental protection, reduces the environmental burden, has a sterilizing ingredient at the same time, and effectively reduces the problems of bacterial corrosion and algae growth in a circulated water system.

The invention belongs to the technical field of petroleum drilling and recovery and particularly relates to an electric drive sand mixing truck. The electric drive sand mixing truck comprises a truck chassis, a control room, a transformer, an electric discharge pump, an electric suction pump, a mixing tank stirring device, a sand conveying auger, a dry feeding system, a liquid feeding system, a suction manifold and a discharge manifold. The control room comprises a sand mixing truck automatic control system and a motor drive device. The electric drive sand mixing truck has the advantages that a motor is used as power source; compared with traditional sand mixing trucks using diesel engines and torque converters as main power output, the electric drive sand mixing truck is simple in structure, novel and reasonable in design, low in cost, low in noise, low in discharge, simple to control, high in sand-liquid matching precision, and convenient to popularize and use.

The invention discloses a hanging tool for a hung conveying spraying line. The hanging tool for the hung conveying spraying line comprises a hanging clamp, a hanging head and a hanging tool body. The hanging tool body is provided with at least one hanging arm set. Each hanging arm set is provided with two hanging arms which are circumferentially and symmetrically distributed. The hanging head is connected to the hanging clamp through a hinge pin horizontally arranged. A shaft neck of an end socket structure is integrally formed on the lower portion of the hanging head. The hanging head is connected with a hanging basket in a coaxially rotary mode through the shaft neck and an end socket. The lower portion of the hanging basket is connected with the hanging tool body. The hanging basket comprises a beam connected with the hanging head. The beam is connected with a basket body with an opening and of a container shape through connecting screws on the two end portions. The beam is of a vertically combined structure or a laterally combined structure composed of a first beam body and a second beam body. The first beam body and the second beam body are respectively provided with a semicircular hole matched with the shaft neck. The two semicircular holes share the same axis and are arranged oppositely. The hanging tool for the hung conveying spraying line has the advantages that spraying line operation is safe, the production efficiency is high, the structure of the hanging tool is simple, manufacture is convenient, and the manufacturing cost is low.

The invention relates to a large-caliber hot water pipeline uncompensated direct burying method which comprises the following steps: (1) the temperature of media supplying heat and pressure in a pipeline are set in a certain range; (2) the depth of the direct burying of the pipeline is determined by a burying path, and a groove is excavated; (3) the bottom of the groove is tamped and leveled; (4) insulating tubes are processed, prefabricated and directly buried in a factory; (5) the prefabricated and directly buried insulating tubes are placed into the groove; (6) all prefabricated and directly buried insulating tubes are mutually connected, a compensator does not need mounting in fixed space; (7) the groove is backfilled at environmental temperature, and the pipeline does not need preheating before backfilling. The pipeline burying method is simple, and the pipeline does not need being mounted with a compensator in fixed space to absorb expansion with heat and contraction with cold caused by the temperature rise of hot water. The invention reduces the accident potential of a heat supply pipe network, and has the advantages of low daily maintenance work load, waterproof performance, good anticorrosion performance, low heat loss, long service life, short construction period and low construction investment. The invention is applicable to burying pipelines with the nominal diameter of DN600-DN1200.

The invention discloses a mining PHS wireless communication comprehensive management system, which comprises a central server, a dispatch switch, a base station controller, a base station, a mining personal handphone system handheld device and an identification card, wherein the central server is connected with the base station controller through the dispatch switch; the base station controller is connected with the base station; a communication antenna and a positioning antenna are respectively connected with the base station; the base station receives a wireless communication signal of the mining PHS handheld device through the communication antenna; and the base station collects signals of the identification card through the positioning antenna. The mining PHS wireless communication comprehensive management system is integrated with the function of the mining PHS and functions of a staff positioning system, not only can search position of each staff member in a monitor room, but also can realize wireless communication with convenient use and high efficiency. When an emergency happens, the system can well organize staff to evacuate and escape; a single plate for the whole design is fixed in an explosion-proof tank, so the system has a concise structure and convenient connection, reduces cost for hardware, hardware failures and workload for daily maintenance.

The invention relates to a phosphorus-free corrosion and scale inhibitor for use in water treatment equipment. The phosphorus-free corrosion and scale inhibitor comprises the following active components in part by weight: 9 to 10 parts of itaconic acid-acrylic acid-acrylate copolymer, 4 to 5 parts of 2-acrylamide-2-methylpropane sulfonic acid-diethylacrylamide polymer, 4.5 to 5.5 parts of polyepoxysuccinic acid and 5 to 6 parts of hydrolyzed plymaleic anhydride. The active components of the phosphorus-free corrosion and scale inhibitor are natural macromolecular compounds which have a natural ring-shaped structure and characteristics of hydrophilic outer cavity and hydrophobic inner cavity and active groups having high valence metal ion chelation are on the outer sides of the natural macromolecular compounds, so that the inhibitor has a certain corrosion and scale inhibiting property; corrosion and scale inhibiting performance of the inhibitor is greatly improved due to the modification by the advanced technique of multi-disciplines, such as the electrochemistry theory, the quantum chemistry theory and the molecular structure design, molecular weight reduction and the introduction of active groups; and in addition, the inhibitor has the advantages of high corrosion and scale inhibiting performance, no toxin nor harmlessness, stable performance, low price, corrosion resistance, rich raw material sources, easy biological degradation in the environment and the like.

The invention discloses an intelligent flow automatic control instrument, which integrates an intelligent controller, an electric actuating mechanism, a flow transmitter, a flow regulating valve, a pressure transmitter, a valve body and a communication technology and has functions of self-inspection and self-diagnosis. The intelligent flow automatic control instrument compares a flow set value with a flow value detected by the flow transmitter, opens the flow regulating valve when the detected flow value is inconsistent with the set value, and automatically regulates the flow to the set value. The intelligent flow automatic control instrument is particularly suitable for automatic control in industries with strict requirements on flow such as oil field, chemical industry, water treatment and mining. The intelligent flow automatic control instrument can realize interconnection and intercommunication of instruments and equipment, reduces the labor intensity, and improves the automation level and the intelligentization level of application fields.

The invention relates to the security tool management field of the production domain, in particular to a tool information management and control automation system. The system includes a backstage sidesystem, a server and a control terminal; the backstage side system is linked with the server and used for achieving acquirement registration of tool managements; the server is used for conducting classification, statistics and calculation on real-time information data from the backstage side system and the control terminal; the control terminal is linked with the server and used for calling a management module corresponding to the backstage side system from the server to achieve checking, modification and addition or deletion of information, and uploading the information into the server. By adopting the tool information management and control automation system based on a wechat JS-SDK technique, work staff can grasp the tool information conveniently, quickly and reliably through a programming technique of wetchat open interfaces, and obtain the current states, storage positions, usage conditions and other information of the tools accurately in real time; the management level of powergrid security tools is effectively improved, the daily maintenance workload of power grid operators can be reduced, and the working efficiency is improved.

The invention belongs to the technical field of petroleum drill and exploitation, relates to a key device for well cementation operation, and in particular relates to an all-hydraulic well cementing truck. The all-hydraulic well cementing truck is characterized in that a ride engine is taken as a power source and a hydraulic system is used for driving a hydraulic motor so as to drive devices such as a high-pressure plunger pump to act. Compared with a traditional well cementing truck utilizing the ride engine and a torque converter as main power outputs, the all-hydraulic well cementing truck is simple in structure, more flexible in overall layout, novel and reasonable in design, low in cost and simple to control, and the all-hydraulic well cementing truck is wider in output flow range because the high-pressure plunger pump is capable of realizing stepless speed change; the all-hydraulic well cementing truck is capable of meeting the requirements of various different operations.

Provided is an automatic bottle interval remaining device of a packaging machine. The packaging machine comprises a baffle rack, left and right baffles and a bottle conveying belt, wherein the baffle rack is located between a filling station and a packaging station of the packaging machine, the left and right baffles form a bottle traveling channel, and the bottle conveying belt corresponds to the traveling channel and forms a bottle transfer plane traveling back and forth under the action of a power transmission mechanism. The automatic bottle interval remaining device comprises a mobile adjusting rack, a friction plate and a friction plate drive mechanism, wherein the mobile adjusting rack is arranged on the right side of the baffle rack, the friction plate is arranged at the position corresponding to the side, opposite to the left baffle, of the right baffle and located on the upper portion of the mobile adjusting rack, the friction plate extends into the bottle traveling channel, and the friction plate drive mechanism is arranged on the lower portion of the mobile adjusting rack and connected with the friction plate. The bottle interval between every two adjacent bottles can meet the time rhythm requirement of relay action of the packaging procedure; the traveling path of bottles is simplified, and the bottles are prevented from being damaged; manufacturing and installation are convenient, and daily maintenance is reduced; and the adaptability to the bottles with different external diameters is improved.

The invention discloses an object circulation conveying device with selectable stations, and belongs to the technical field of light industrial product assembly line production equipment. The object circulation conveying device comprises a rack table, a turnover basket conveying guide rail mechanism, a turnover basket conveying mechanism, a set of turnover baskets and a turnover basket operation driving mechanism, wherein a rack table is arranged at the upper part of the rack; the turnover basket conveying guide rail mechanism is arranged on the rack table; the turnover basket conveying mechanism is arranged on the turnover basket conveying guide rail mechanism; the turnover baskets are connected with the turnover basket conveying mechanism and form a rolling pair with the turnover basket conveying guide rail mechanism; and the turnover basket operation driving mechanism is arranged at one end of a rack and connected with the turnover basket conveying mechanism, and the device is characterized by further comprising a set of turnover basket cavity bottom plate opening and closing control mechanisms which are arranged on the turnover basket conveying guide rail mechanism. One side of a turnover basket cavity bottom plate is hinged to the lower edge of a turnover basket back plate, the other side of the turnover basket cavity bottom plate forms a free side for opening or closing the bottom of a turnover basket cavity, and object receiving mechanisms are arranged at the positions corresponding to the front side and the rear side of the rack. Power consumption is reduced, and electric energy is saved. And the processing technology requirements of various types of small-batch garments are met, and flexible fast reverse production is embodied.

The invention relates to a device and a method for reducing the wave-making resistance of a warship, which includes a hull, the lower part of the bow of the ship hull is provided with a forward projecting mechanism extending out of the ship hull, and an inner cavity is arranged inside the protruding mechanism, the inner cavity is communicated with an air source arranged in the hull through a gas pipe, A gas flow regulating device is arranged on the trachea, the protruding mechanism is provided with a nozzle communicated with the inner cavity, The invention is used for ejecting bubbles to change the height, phase and frequency of the first wave of the warship, and the aspect ratio of the warship to achieve the purpose of reducing the wave resistance, and the ejected bubbles can reduce the frictional resistance of the surface warship, increase the speed of the surface warship, save the energy consumption and carbon emission in the shipping process, and the gas source is provided with anozone generator. When needed, ozone is injected through the nozzle along with the bubbles to reduce the breeding of aquatic organisms, reduce the daily maintenance workload, reduce fuel consumption ofships, increase ship speed and reduce emissions.

The invention discloses a single-line and double-line interchange assembly line, and belongs to the technical field of light industrial product assembly line production equipment. The single-line and double-line interchange assembly line comprises a machine frame, a first turnover basket beat type conveying mechanism, a second turnover basket beat type conveying mechanism, a first turnover basket operation driving mechanism and a second turnover basket operation driving mechanism; the first turnover basket beat type conveying mechanism and the second turnover basket beat type conveying mechanism correspond to each other up and down and are arranged on the machine frame in the state that the first turnover basket beat type conveying mechanism and the second turnover basket beat type conveying mechanism are respectively kept horizontal; the first turnover basket operation driving mechanism is arranged at the left end of the machine frame, the left end of the first turnover basket beat type conveying mechanism is connected with the first turnover basket operation driving mechanism, and the left end of the second turnover basket beat type conveying mechanism is arranged on the first turnover basket operation driving mechanism in a sleeving mode; and the second turnover basket operation driving mechanism is arranged at the right end of the machine frame, the right end of the second turnover basket beat type conveying mechanism is connected with the second turnover basket operation driving mechanism, and the second turnover basket operation driving mechanism is sleeved with the right end of the first turnover basket beat type conveying mechanism. Electric energy is saved; workpieces can be conveniently taken and placed, and operation is labor-saving; the workpieces are prevented from falling off; and the structure is simplified, and daily maintenance workload is reduced.

The invention relates to an integrated cooling module for a multisystem, which comprises a water radiator (44), an air-air intercooler (41), a transmission oil radiator (42) and a hydraulic oil radiator (43), wherein each radiator is provided with an independent cooled medium in-and-out flange and an in-and-out chamber; a cooling core integrated body (45) is shared by the radiators; and the cooling core integrated body (45) is divided into small core bodies in different areas by separating walls, for respectively cooling different mediums. In the invention, an integrated matching design method is adopted; the integrated cooling module for the multisystem, which is high in heat exchange capability, small in routine maintenance work load, compact in structure and convenient in mounting, is supplied to rail traction equipment and engineering machinery; an independent split type radiator used in the prior art can be replaced; the problems of large volume, heavy weight, high cost, poor maintainability, low reliability, and the like of a traditional cooling device can be solved; and finally, the lift cycle cost of the cooling device is lowered and the higher economic benefit is created for a user.

The invention provides a self-cleaning air filter.A plurality of filter elements and pressure sensors are installed in a shell, and an air outlet is formed in the rear end of the shell.An air inlet box is arranged on the lower portion of the shell, an air inlet is formed in the front end of the air inlet box, and a compressed air pipe and a dirt discharging pipe are arranged in the air inlet box.A plurality of rotary suction nozzles are arranged in each filter element and are communicated with a perpendicularly-downward suction pipe, the lower end of each suction pipe is connected to a suction device, and a venturi water spray nozzle is arranged at the tail end of the dirt discharging pipe.By means of the self-cleaning air filter, the efficiency of air filtering equipment can be greatly improved, clean air production cost can be reduced, and energy can be saved; equipment running is more reliable, and the service life of the high-strength filter elements is longer; no dust is accumulated and stored in the equipment; the maintaining work of the filter is simplified, and daily maintenance workload is greatly reduced; the occupied area is small, and investment is small; economic and social benefits are very remarkable.

The invention provides a marine crane. The marine crane comprises a hoisting mechanism, a guide pulley, a lifting hook group, a steel wire rope fixing end, a crane carriage and a trolley traction mechanism, the hoisting mechanism comprises a hoisting steel wire rope, a hoisting motor, a speed reducer and a hoisting winding drum, a movable pulley is arranged on the lifting hook group, a hoisting fixed pulley, a traction pulley, running wheels and a horizontal guide wheel are arranged on the crane carriage, and the trolley traction mechanism comprises a traction winding drum and a traction steel wire rope; the hoisting mechanism is fixedly connected with the tail part of a crane boom; one end of the hoisting steel wire rope is fixed on the hoisting winding drum, the other end of the hoisting steel wire rope sequentially penetrates through the guide pulley, the hoisting fixed pulley, the movable pulley and the hoisting fixed pulley and then is connected with the steel wire rope fixing end; the guide pulley is fixedly connected with the end part of the crane boom; the winding and unwinding directions of the two traction steel wire ropes are opposite; and the crane carriage is suspended on a lower edge wing plate of the crane. The marine crane has the advantages of being simple in structure, convenient to install and capable of meeting the use requirements of ships under complex working conditions.

The invention discloses a distributed wireless electronic label system. The distributed wireless electronic label system is characterized in that the distributed wireless electronic label system includes an upper computer, a ZigBee network and a radio frequency signal transmitting device; the upper computer is used for distributing label display data in a unified manner and confirming label display states; the ZigBee network directly performs data acquisition and monitoring on each node so as to facilitate the management of network node data transmission; the radio frequency signal transmitting device provides radio frequency signals of necessary frequencies for each micro energy acquisition module, so that power supply can be conveniently provided for each module; the upper computer is in wireless or wired connection with the ZigBee network; and the radio frequency signal transmitting device is connected with the ZigBee network through wireless radio frequency signals. The distributed wireless electronic label system has the advantages of real-time update function, low cost as well as convenient management and maintenance.

The invention discloses a rain cover of a disconnecting link mechanism and relates to the field of power plants, transformer substations and outdoor disconnecting switches in power industry. The problems that a disconnecting switch rotary connecting rod and a disconnecting switch mechanism box body are connected in a straight-through mode in the prior art, the connection portion between the disconnecting switch rotary connecting rod and the disconnecting switch mechanism box body is not thoroughly sealed, raindrop and molten snow permeate into the disconnecting switch mechanism box body through the connection portion, system direct current is grounded, and therefore movement rejection and mistaken movement of a relay protection device are caused are solved. The rain cover comprises a rain cover body and a telescopic support. The telescopic support is used for supporting the rain cover body and adjusting the height of the rain cover body. The rain cover body is nested to the outer surface of a disconnecting switch linkage rod and used for protecting the connection portion of the disconnecting switch linkage rod and a disconnecting switch mechanism box body connected with the disconnecting switch linkage rod. The rain cover body is a left-right opening-closing type cover body, and the opening-closing portion of the rain cover body is fixed through a bolt so as to be in a closed state. The opening-closing portion of the rain cover body is provided with a sealing strip. The rain cover is mainly used for rainwater protection.

The invention discloses an immune planning and vaccination management system. The system comprises an inoculated person identity uniqueness control verification module, wherein identity card information is read through an identity information identification device and stored for an adult inoculated person; for a child inoculated person or a guardian, after confirming that the inoculated person is himself or herself through vaccination certificate verification, face collection on the existing archive is performed through a face recognition device, comparison is synchronously carried out with a database , and photos if the comparison is passed are stored. The system also includes a module for verifying identity validity verification for each time of vaccination, which is used for verifying identity validity during subsequent vaccination; a business process management and control module used for managing each terminal and a system process; a database module used for storing the identity information, the inoculation information and the process information. The technical problems that in the prior art, in the immunization and prevention vaccination process, the vaccination accuracy of the vaccinated persons and the vaccination time accuracy cannot be guaranteed, and information of the neonatal vaccinated persons is input repeatedly are solved.

The invention provides a single-arm type bird repellent shielding cover applied to a high-voltage overhead line pole, and the single-arm type bird repellent shielding cover belongs to the field of line protection. The single-arm type bird repellent shielding cover is provided with a T-shaped middle shielding cover is arranged at a joint part of a lead wire and an insulator string; two opening endsalong the direction of the lead wire of the T-shaped middle shielding cover are provided with a left gun head cover and a right gun head cover separately; and the T-shaped middle shielding cover is integrally fixed / connected between the left gun head cover and the right gun head cover in an inserting or riveting manner. Through arranging the defensive shielding protection cover at the joint partof the overhead power transmission line conductor and the horizontal insulator string, a metal bowl at the tail end of an insulating arm and the bared conductor part are insulated and shielded, insulating extension at a specified length is performed along the direction of an overhead line, an electrical insulation distance between a bird nest and a power supply overhead line is increased, and effective isolation between the bird nest and an electric conductor is generated, so as to avoid a grounding failure of a high-voltage power supply line caused by bird nesting. The single-arm type bird repellent shielding cover applied to the high-voltage overhead line pole can be widely applied to the protection field of various kinds of high-voltage overhead power transmission lines adopting transverse insulator strings.

The invention discloses an electrically-driven fracturing pump truck, which comprises a truck chassis with a cab. A lubricating and cooling system, a fracturing pump, a suction manifold, an exhaust manifold, an electrically-driven system and a control system, the suction manifold and the exhaust manifold are connected with the fracturing pump, the electrically-driven system comprises a motor and a motor-driven device, the motor is used for driving the fracturing pump to run, the control system comprises a main power control system and an auxiliary power control system, the main power control system is used for controlling the motor-driven device, the auxiliary power control system is used for controlling the lubricating and cooling system, and the motor-driven device, the main power control system and the auxiliary power control system are powered by an external power source. The electrically-driven fracturing pump truck is simple in structure, reasonable in design, convenient in matching, low in manufacture cost, high in work efficiency and reliability, convenient in energy supply, fine in emission reducing effect, easy in maintenance, capable of overcoming defects and shortcomings of high fuel consumption, difficulty in matching of an engine and a torque converter and the like of a fracturing pump truck in the prior art, and convenient in popularization and use.

The invention relates to a self-cleaning water seal drainer including a cylinder water collecting tank body and a drainage tank body; the upper end of the cylinder water collecting tank body is internally connected with the interior of the lower end of the drainage tank body, and the upper end of the cylinder water collecting tank body communicates with the interior of the drainage tank body; the upper end of the drainage tank body is provided with a seal tank cover, the seal tank cover is provided with a water inlet pipe, a water outlet of the water inlet pipe is located at the lower end of the interior of the cylinder water collecting tank body, and the seal tank cover is provided with a vent pipe; the lower part of the side wall of the drainage tank body is provided with a blow-off pipe. The self-cleaning water seal drainer has the advantages of simple structure and small occupied area, water in the water inlet pipe can automatically clean the bottom of the cylinder water collecting tank body, sludge is not easily deposited at the bottom, and the daily maintenance work load is small.

The invention relates to a lateral current collection section insulator. The lateral current collection section insulator comprises at least an insulation main body and an umbrella skirt, the umbrellaskirt is arranged on the insulation main body, and distributed along the sliding direction of an electric brush, the insulation main body has an inclined surface, and is combined with the hydrophobicproperty of the surface, and the fouling deposit on the surface of the section insulator can be efficiently suppressed. The section insulator matched with a fastened part is mounted on a contact railthrough gaskets, in daily maintenance, the height difference between the current collection surface and the insulator caused by long-term wear by changing the number of the gaskets can be compensated, and the whole section insulator does not need to be replaced.

Provided is a pneumatic vibration cotton feeding box. The pneumatic vibration cotton feeding box comprises an upper cotton box, a lower cotton box, a cotton suction mechanism, a lower cotton box cotton guiding cavity fiber feeding mechanism, a beater, a fiber feeding roller driving mechanism, a beater driving mechanism, a lower cotton box cotton guiding cavity cotton discharging mechanism, a fiberoutput curtain mechanism and a vibrating plate swinging driving mechanism; a left shield and a right shield are connected to the upper part of the front and rear sides of the lower cotton box; cottonbaffles are positioned in the middles of the front and rear sides of the lower cotton box, the upper end of a vibrating plate is pivoted at the middle part between the front and rear sides of the lower cotton box, and the lower end of the vibrating plate is a free end; the lower cotton box cotton guiding cavity fiber feeding mechanism is supported between the front and rear sides of the lower cotton box; the beater is supported between the front and rear sides of the lower cotton box; the fiber feeding roller driving mechanism and the beater driving mechanism are arranged on the rear side ofthe lower cotton box; the lower cotton box cotton guiding cavity cotton discharging mechanism is supported between the front and rear sides of the lower cotton box; the fiber output curtain mechanismis arranged at the lower part of the lower cotton box; the output curtain driving mechanism is arranged at the lower part of the front side of the lower cotton box; the vibrating plate swinging driving mechanism is arranged at the lower part of the right side of the lower cotton box. The pneumatic vibration cotton feeding box is characterized in that the vibrating plate swinging driving mechanismis connected with the lower part of the vibrating plate in a connection mode based on an eccentric connecting rod, so that the pneumatic vibration cotton feeding box has high adaptability to fibers made of different materials, energy consumption is lowered, and daily inspection and protection workloads are reduced.

The invention relates to a visual script online editing verification and automatic execution device, which is used for generating an automatic maintenance task through a visual online editing instruction / script, associated network entity execution operation, real-time instruction / script execution, real-time acquisition of a network entity execution message, real-time verification instruction / script output and generation of an automatic maintenance task. Readability of script and instruction execution in the network maintenance operation process is improved, execution verification of a user onan instruction / script for operating and maintaining a network entity is facilitated, and meanwhile generation of an automatic maintenance task is supported, so that working efficiency is greatly improved.

The invention discloses a radio frequency external electrode with a variable electrode equivalent diameter, and a radio frequency heat treatment device. The technical scheme of the invention is that the electrode comprises a radio frequency external electrode plate component with a controllable equivalent diameter, an electrode body, a coupling water cushion, and one-way cooling circulating water joints, wherein the radio frequency external electrode plate component with the controllable equivalent diameter is formed by arranging a plurality of electrode plates with electrical conductive columns welded on, and gaps between the electrode plates are filled with an electrode plate body material; the small end of the electrode body is matched and fixed with a host of the radio frequency heat treatment device, and the large end of the electrode body is assembled with the radio frequency external electrode plate component and the coupling water cushion; the coupling water cushion is filled with a solution having a human coupling characteristic, and the air within the coupling water cushion is discharged; and the one-way cooling circulating water joints are arranged on the radio frequency external electrode plate component at radial outer positions which are opposite to each other to supply circulating water to the coupling water cushion or discharge the circulating water from the coupling water cushion.

A cooling air conditioner scheme without cold medium (water) for high building is characterized by that the refrigerant boosting and distributing system composed of refrigerant pump and low-pressure liquid tank is additionally used in the cooling air conditioner engineering to replace original cold medium distributing system. Its advantages are low cost, and high air conditioning effect.

The invention provides a self-lubricating friction-reducing sliding bed plate, being characterized in that a square groove (2) is arranged on the upper end face of a sliding bed table (1); a wear-resisting self-lubricating plate (4) is embedded into the square groove (2); front, rear, left, right and lower directions of the wear-resisting self-lubricating plate (4) are positioned by the square groove (2), and the upper surface of the wear-resisting self-lubricating plate (4) is protruded from the upper end face of the sliding bed table (1); the square groove (2) is a rectangular groove, and one side of the rectangular groove is provided with a notch (3); the wear-resistant self-lubricating plate (4) is a rectangular structure formed in one step; and the wear-resistant self-lubricating plate (4) and the square groove (2) are bonded together by an adhesive, so that the wear-resisting self-lubricating plate (4) and the sliding bed table become an integral whole. The invention simplifies the structure of the sliding bed table, has lower manufacturing cost and high production efficiency; the wear-resistant self-lubricating plate is made of modified polytetrafluoroethylene, which can effectively reduce the surface friction coefficient of sliding table, and its wear resistance and plastic creep resistance can meet the requirements of the tip rail.