98results about How to "Easy to maintain and replace later" patented technology

The invention discloses an anti-fatigue reinforcing device for concrete filled steel pipe truss structure nodes. The device comprises an upper protection plate and a lower protection plate which are welded on at the position of an upper chord node. The upper protection plate and the lower protection plate form a closed node cavity through lateral seal plates welded on the outer edges. A web member located in the node cavity is sequentially by a flange and a reinforcing pipe, the lower end of the reinforcing pipe is fixedly connected onto the flange clinging to the inner surface of the lateral sealing plates, and a plurality of connection steel plates are welded between the reinforcing pipe and the upper protection plate and the lower protection plate. An attached pipe sleeves the web member located on the outside of the node cavity, and the upper end of the pipe is fixedly connected onto the flange through a connection bolt. A specific construction method is further disclosed. The reinforcing device is simple in structure and convenient to construct. The advantage of reserving steel pipe direct welding nodes is achieved, the shortcoming of stress concentration is overcome by adding the node protection plates, and anti-fatigue performance of the nodes is effectively improved. Meanwhile, the straight web member and the inclined web member which can be replaced are provided in the node reinforcing mode, and the structure redundancy is improved.

The invention discloses a method and a device for actively protecting a double-fed wind power generator converter. A crowbar protection device accesses a rotor side of the converter, provides bypass for a rotor side circuit, limits a current which passes through a double-fed converter and keeps a generator from operating out of network by using a low-voltage ride-through control strategy. When a system is stabilized, the crowbar protection device is cut off, and a double-fed wind power generator normally operates. The invention is characterized in that: an output end of the crowbar protection device is connected with an A phase, a B phase and a C phase of the rotor side of the double-fed converter; a relay and the converter are connected as shown by figure 2; coils Q of the relay are connected in series to a main circuit of a crowbar; and a switch of the relay is connected in series with R1, so the converter can control the switch-on and switch-off of the relay, the switch-on or switch-off of the relay is determined by the size of the current which passes through operating coils of the relay, and the crowbar protection device is controlled to be triggered or not.

The invention relates to the technical field of unmanned aerial vehicle wing production and processing, in particular to an automatic unmanned aerial vehicle wing production device which comprises a base, stand columns, moving structures, a replacing structure, a fixing structure, a limiting structure, a containing structure and an anti-rotation structure. The moving structures are arranged at one ends of the two stand columns, a polishing assembly can be automatically adjusted to be close to a to-be-polished wing and away from the to-be-polished wing, so that the to-be-polished wing is conveniently and automatically polished, the polishing assembly can be rapidly installed and replaced in cooperation with the arrangement of the replacing structure, and therefore the damaged polishing assembly can be conveniently replaced in the later period; and by installing the fixing structure at the top end of the base, the wing can be adsorbed and fixed according to the vacuum adsorption principle, so that the surface of the wing is comprehensively polished conveniently, polishing and discharging can be conducted independently, namely, when one wing is polished, the other wing can be discharged or charged, and therefore the discharging and charging time is shortened, and accordingly, the polishing efficiency can be improved.

The invention discloses a double-layer pipe for gas supply of a gas engine. The double-layer pipe comprises an inner-layer pipe, an outer-layer pipe and an installation flange, wherein air holes are distributed between the center circle of the installation flange and a bolt hole; ports of the inner-layer pipe and the outer-layer pipe are combined on the installation flange; the inner-layer pipe is distributed in the outer-layer pipe; and the air holes are distributed between the wall of the inner-layer pipe and the wall of the outer-layer pipe. The double-layer pipe is very simple and convenient to operate, high in reliability, convenient to disassemble and assemble and easy to repair and replace in the later stage.

The invention provides online real-time detection device and method for ore pulp concentration, belonging to the fields of measurement methods and measurement devices. According to the device, the online real-time detection problem of the ore pulp concentration is solved. The device comprises a feeding pipe, a discharging pipe, a sampling pump, an intelligent calculation module, a parameter detection module, a display module, a data communication module, wherein the intelligent calculation module adopts the online real-time detection method for the ore pulp concentration and is used for acquiring a real-time ore pulp concentration C according to detected pump motor power P and an acquired relation between an offline detection ore pulp concentration C and a sampling pump motor power P. Themethod and the device are simple and easy to implement, the later-period replacement and maintenance are easy, the maintenance cost is low, and a user can know that the measured precision meets the production requirements through comparison on offline data and online data of the ore pulp concentration.

The invention discloses an assembled decoration suspended ceiling. The assembled decoration suspended ceiling comprises a primary suspended ceiling and a secondary suspended ceiling and is characterized in that the primary suspended ceiling comprises a suspended ceiling board fixedly connected to a ceiling, and the suspended ceiling board is smaller than the ceiling; the secondary suspended ceiling comprises a plurality of grid telescoping modules located below the suspended ceiling board, the grid telescoping modules are arranged on vertical wall boards through support modules, the width of the grid telescoping modules is larger than the distance between the edge of the suspended ceiling board and the vertical wall boards, the grid telescoping modules are further provided with adjustablemiddle modules, and the bottom surfaces of the support modules and the middle modules are provided with lamps and window box modules. The assembled decoration suspended ceiling has the advantages thatthe suspended ceiling is separated into the fixed primary suspended ceiling and the adjustable secondary suspended ceiling, additional parts such the lamps are mounted on the secondary suspended ceiling, the height and horizontal position of the second suspended ceiling can be adjusted according to mounting needs, and the assembled decoration suspended ceiling is simple in structure, suitable forassembling, convenient for later maintenance and replacement, high in work efficiency and good in effect.

The invention relates to a labyrinth seal with an oil scraping structure and an oil scraping method. The labyrinth seal comprises a dynamic ring which is fixed on a gear and a static ring which is fixed on a gear shield; the dynamic ring is accommodated in the static ring; at least one oil scraping plate which is resisted against the surface of the dynamic ring is arranged on one side inner wall of the static ring; and the oil scraping plate is used for scraping lubrication oil which flows into a dynamic gear socket from a gear edge into an oil storage tank which is arranged below the gear shield. According to the labyrinth seal with the oil scraping structure, the oil scraping plate which is resisted against the dynamic ring is arranged on one side inner wall of the static ring; when thedynamic ring rotates along with the gear, the oil scraping plate scrapes lubrication oil between the dynamic ring and the static ring into the oil storage tank which is arranged below the gear shield;and in a heavy-load high-stickness lubrication medium working condition, the labyrinth seal also has good sealing performance when being applied to a main shaft gear stand, and the lubrication oil iseffectively prevented from being leaked out of the main shaft gear stand.

The invention discloses a busbar for a lithium battery module. The busbar comprises a fixed cover plate, a confluence sheet, a battery cell fixing frame and a connecting bottom plate; the fixed coverplate is mounted and fixed on the upper end surface of the battery cell fixing frame; the lower end surface of the battery cell fixing frame is fixed with the connecting bottom plate; therefore, double-sided clamping is carried out on the battery cell fixing frame; the confluence sheet is arranged in the fixed cover plate; the battery cell fixing frame comprises an upper supporting frame and a lower auxiliary bracket; the upper support frame and the lower auxiliary bracket are mutually matched and fixed; a plurality of battery mounting holes I are formed in the end surface of the upper supportframe; a battery mounting hole II is formed in a corresponding position in the lower auxiliary bracket, therefore, the lithium battery is placed in the battery cell fixing frame; and a heat dissipation assembly is further arranged in the end face of the side, close to the lower auxiliary bracket, of the upper supporting frame, heat dissipation is conducted on the lithium battery in time, the service life of the battery is prolonged, the safety of the battery is improved, and the fixed cover plate and the connecting bottom plate are fixed through connecting supporting column threads.

The invention relates to the technical field of medical air conveying and conditioning energy-saving equipment, in particular to an air conveying energy-saving device for a medical mechanism. The device comprises an air conveying guide pipe and an adjusting motor which are used for cooperating with an air conditioning system of the medical mechanism. According to the air conveying energy-saving device for the medical mechanism, the interior of the air conveying guide pipe is divided into an upper air conveying flow channel and a lower air conveying flow channel through a middle separation partition plate, a turnover closing cover plate used for switching heat exchange flow channels is installed on the middle separation partition plate, so that the flow direction of the lower air conveying flow channel is adjustable, an input pipe and an output pipe are integrated in the same pipeline, so that the whole-process heat exchange capacity is achieved, the heat exchange performance is greatly improved, and the device is more energy-saving and environment-friendly; and a first permanent magnet strip is fixed to the inner side of a bottom storage groove, a second permanent magnet strip is fixed to the turnover closing cover plate, third permanent magnet strips are installed in lateral sealing frames, the fitness during storage and assembling can be improved, and therefore the flatness and sealing performance of the inner surface are improved.

The invention discloses a method and equipment for eliminating white smoke of desulfurized flue gas, and the method comprises desulfurization treatment, specifically, atomization desulfurization and dust removal treatment are conducted by adopting a desulfurization tower; and a solid spray washing chamber, a condensation atomization washing chamber, a circulating fluidization filtering chamber, a mass transfer washing chamber and a dehydration demisting chamber are arranged in the desulfurization tower. The desulfurization tower performs atomization desulfurization dust removal treatment and white smoke elimination treatment, so that the desulfurization, white smoke elimination and purification work on flue gas is completed. Meanwhile, a boiler flue gas waste heat recovery technology, a flue gas heat exchange and cooling technology and a big data intelligent control technology are combined and adopted, large white smoke of desulfurized flue gas is deeply treated, white smoke elimination of the desulfurized flue gas is achieved, meanwhile, flue gas waste heat is recovered and used for heating demineralized water and supplying the demineralized water to a boiler deaerator, energy saving and consumption reduction are achieved, and large benefits are obtained; and a large amount of smoke exhaust waste heat is recycled and used for boiler smoke waste heat recycling circulating water on the front portion, closed circulation of waste heat recycling is achieved, and heated demineralized water is used for a boiler deaerator to be utilized.

The invention discloses an assembly type solar greenhouse and an assembly method thereof. The assembly type solar greenhouse comprises a greenhouse body, an electricity supply electric control line-dividing mechanism, a reclaimed water circulating system and an air circulating and fresh air heat-recovery system. According to the assembly type solar greenhouse and the assembly method thereof, by arranging the reclaimed water circulating system, water supplying of city corners and agricultural and pastoral areas in dry seasons, water drainage of the city corners and the agricultural and pastoralareas in flood seasons, organized drainage and secondary recycling of domestic sewage are achieved, and accordingly the problems of water supplying for residents and wastewater drainage of the city corners and the agricultural and pastoral areas are solved; and the air circulating and fresh air heat-recovery system is arranged, and meanwhile an air handling unit is arranged so that a fresh air heat-recovery device can fully handle circulating air and conduct waste heat recovery work on the circulating air, and the indoor air environment can be improved in summer and in winter. By arranging asolar electricity supplying main control device, electric power collected by a solar cell panel can supply electricity to equipment in the greenhouse body. By adopting the prefabricated assembly-typeconstruction technique, assembling is convenient, the construction period is short, and the workload can be saved.

The invention relates to the technical field of sealing devices, in particular to a valve rod upper seat with a built-in multidirectional buffering mechanism. The valve rod upper seat comprises a bottom assembling disc and a top assembling pipe, and a circular bottom adjusting groove is formed in the lower surface of the bottom assembling disc. According to the valve rod upper seat with the built-in multidirectional buffering mechanism, an inner assembling frame on the upper surface of the bottom assembling disc is inserted into a bottom assembling inserting groove to be fixedly connected with the lower end of the top assembling pipe through a bolt, and an annular assembling groove with a built-in detachable flexible rubber sealing piece is formed in the lower end of the bottom assembling disc, so that earlier-stage assembling and later-stage replacement and maintenance are facilitated, and the later use cost is greatly reduced; an elastic extrusion adjusting device used for controlling the flexible rubber sealing piece to stretch and contract is mounted in the top assembling pipe, so that a crumple area with an elastic buffering function can be formed on the sealing surface according to needs, the water hammer effect in a pipeline and a valve can be eliminated when the valve is opened and closed, and the safety of the whole valve pipeline is greatly improved.

The invention belongs to the technical field of cooling towers and particularly relates to a water vapor shunt type cooling tower filler which comprises a flake filler, two sliding chute fixture blocks and two sliding chutes, wherein the flake filler is horizontally superimposed to form the filler required by the whole cooling tower; the two sliding chute fixture blocks are respectively fixed on the wall surface on one side at the upper end and the lower end of the flake filler; and the two sliding chutes are respectively fixed on the wall surface on the other side at the upper end and the lower end of the flake filler. By arranging the sliding chute fixture blocks and the sliding chutes, the installation and later maintenance and replacement are facilitated, the maintenance cost is reduced only by replacing the damaged flake filler and without integrally replacing the whole flake filler, and the heat exchange efficiency of the filler is improved through water vapor shunting.

The invention relates to the technical field of textile printing and dyeing equipment, in particular to a dye vat with a self-cleaning device. The dye vat comprises a dye vat body; and a guide roller and a cloth dyeing roller are movably assembled in the dye vat body. According to the dye vat with the self-cleaning device, a transverse adjusting mechanism is installed in the dye vat; an internal scraping mechanism on the surface of the transverse adjusting mechanism horizontally moves in the dye vat body to conduct sludge scraping operation on the inner wall of the dye vat body; dye adhesion in the dye vat can be avoided in a self-cleaning mode, so that the later cleaning and maintenance difficulty is reduced; extrusion regulation and control devices are installed on the inner wall of the dye vat body and located at the connecting ends of the two sides of an external thread adjusting lead screw; the thread assembly relation between the internal scraping mechanism and the external thread adjusting lead screw can be automatically changed, and therefore the internal scraping mechanism is automatically controlled to horizontally move in a reciprocating mode; and adjustment is easy and convenient, manual control is not needed, and the automation degree is very high.

The invention discloses an intelligent joint pointing trolley. The intelligent joint pointing trolley comprises a main bottom casing body, wherein an adsorbing assembly, a driving assembly, a feedingassembly and a cut melting assembly are arranged on the main bottom casing body, the adsorbing assembly is used for adsorbing the main bottom casing body onto a plate to be subjected to joint pointing, the driving assembly is used for driving the main bottom casing body to move on the plate to be subjected to joint pointing, the feeding assembly is used for conveying adhesive tape raw materials, and the cut melting assembly is used for processing the adhesive tape raw materials into a joint mixture and applying the joint mixture to the plate to be subjected to joint pointing; a fine adjustmentassembly used for adjusting rotating angle of the cut melting assembly is arranged between the cut melting assembly and the main bottom casing body, and an electric appliance assembly for controllingthe assemblies is further arranged on the main bottom casing body. An adhesive tape can perform attractive and uniform joint pointing on wall board joints with traveling of the intelligent joint pointing trolley until the adhesive tape is cut off by a hot melting cutter arranged on a hot melting cutting head; under the action of a sucker suction cavity and sealing cavities, the main bottom casingbody can be adsorbed on a wall board and can move along the wall board; the intelligent joint pointing trolley is simple in structure, applicable in function, suitable for present fabricated type decoration and low in cost.

The invention relates to the technical field of domestic sewage treatment equipment, and discloses rural domestic sewage treatment modular equipment which comprises a primary sedimentation tank, a biochemical treatment tank arranged on one side of the primary sedimentation tank, a pre-filtration treatment tank arranged in the biochemical treatment tank, and a purification and disinfection tank arranged on one side of the biochemical treatment tank. A water inlet pipe is arranged at the top of the primary sedimentation tank, a first motor is arranged on the outer wall of one side of the primary sedimentation tank, a first rotating shaft is arranged at one end of the first motor, propellers are arranged on the periphery of the first rotating shaft, a sludge suction pump is arranged at the bottom of the primary sedimentation tank, and sludge tanks are arranged at the bottoms of the biochemical treatment tank and the purification and disinfection tank. According to the rural domestic sewage treatment modular equipment, manual maintenance and use are facilitated, the situation that soil and dust are hardened at the bottom of the tank due to the fact that the soil and dust are not discharged in the primary tank for a long time is avoided by arranging a spiral stirring structure, and later maintenance and replacement are facilitated due to the fact that the filtering structure is adjustable.