74results about How to "Reduce on-site construction workload" patented technology

The invention relates to an intelligent water wall high temperature corrosion preventing system suitable for a large power station boiler and a method. The system can be adjusted in real time according to the change of the operating conditions of the boiler to prevent a water wall from high temperature corrosion, operating personnel involvement is not needed, and the high temperature corrosion is intelligently prevented. The system comprises a pressurizing pipeline communicated with an air pre-heater outlet hot secondary air box, a booster fan is arranged on the pressurizing pipeline and is communicated with an annular air box of surrounding a protection wall, the annular air box is communicated with branch air boxes through connecting air boxes, and the branch air boxes are communicated with ventilation grooves in the boiler wall. An air flow adjusting device is arranged on the pressurizing pipeline, and the air flow adjusting device comprises an isolation baffle, a master adjusting baffle, an air flow measuring device and a pressure sensor and further comprises a branch adjusting baffle of the connecting air boxes. An intelligent control system adjusts the opening and closing degree of each baffle in the air flow adjusting device according to the operating state of the boiler, and the air flow is controlled to prevent the water wall from the high temperature corrosion.

The invention relates to the technical field of artificial intelligence, in particular to a method for predicting the air inlet temperature of the cabinet based on the reinforcement learning model. The method comprises the following steps: 1, collecting actual surface temperature data of the cabinet through a thermal imaging device, and collecting actual air inlet temperature data of the corresponding cabinet through a thermosensitive device; 2, calling a neural network model for training, and repeatedly training by taking the surface actual temperature data of the cabinet as input and the actual air inlet temperature data of the cabinet as output, so that the neural network model can predict air inlet simulation temperature data of the cabinet after training; 3, establishing a reinforcement learning model; 4, obtaining a neural network model under the optimal strategy of the reinforcement learning model to generate a new predictor; and 5, predicting the air inlet temperature of the cabinet by using the optimal predictor. According to the invention, the accuracy of the air inlet simulation temperature data of the cabinet is improved, the material is saved and labor cost is reduced,and use is convenient.

The invention discloses a mobile cold-heat-electricity triple generation distributive energy station. The energy station adopts a box type structure; and a micro gas turbine generator set, a smoke afterburning lithium boride air conditioning unit and a cooling tower which are included by the energy station, and a control system, an air conditioner water system, a natural gas system, a smoke system, an electric system, running water, a drainage system and a vibration and noise reducing system of the energy station are all prized on a base, so that the energy station becomes a mobile system.

The invention discloses an ultra-high performance concrete wet joint structure with prefabricated small box girders and a construction method of the ultra-high performance concrete wet joint structure. The wet joint structure comprises a plurality of prefabricated small box girders, wherein each prefabricated small box girder is arranged along the bridge direction, and a wet joint along the bridgedirection is formed between two adjacent prefabricated small box girders; a bridge deck slab straight section is arranged at the top of the prefabricated small box girder, a plurality of annular reinforcing steel bars are pre-buried in the bridge deck slab straight section, each annular reinforcing steel bar is arranged in the transverse bridge direction, and the annular ends of the annular reinforcing steel bars extend into the wet joints; a plurality of constructional steel bars are arranged in the wet joint, and each constructional steel bar is arranged in the bridge direction; ultra-high-performance concrete is poured into the wet joints, the constructional steel bars and the annular steel bars extending into the wet joints are wrapped in the ultra-high-performance concrete, and everytwo adjacent small prefabricated box girders are connected into a whole through the ultra-high-performance concrete of the wet joints and the annular steel bars wrapped in the ultra-high-performanceconcrete. According to the invention, the construction procedure can be simplified, the construction efficiency is improved, the manufacturing cost is reduced, and the construction quality is effectively improved.

The invention discloses a transverse segmental prefabricated prestressed concrete bent cap structure and an assembling method thereof. The transverse segmental prefabricated prestressed concrete bentcap structure comprises a bent cap body and prefabricated stand columns. The bent cap body comprises a plurality of prefabricated sections spliced in the transverse direction; a hole through which a steel strand penetrates is reserved in each prefabricated section; every two adjacent prefabricated sections are connected through a wet joint section; an upper profile steel lap joint structure and alower profile steel lap joint structure which are matched with each other are pre-buried in the joint surfaces, close to the two sides of the wet joint section, of every two adjacent prefabricated sections respectively; the transverse steel bars on the top face, the bottom face and the vertical face of each prefabricated section extend into the range of the corresponding wet joint section, and thetransverse steel bars of each prefabricated section and the transverse steel bars of another adjacent prefabricated section are arranged in a staggered lap joint mode. The small-tonnage segmented prefabricated assembly of the large-volume prestressed concrete bent cap is achieved, stress of the bent cap structure can be better ensured, the structure quality is improved, and the construction speedis increased.

The invention discloses a multifunctional clean drag reducing agent used for shale gas fracturing. The drag reducing agent is prepared by an initiated polymerization reaction of an internal phase andan external phase under the action of an initiator; the external phase is composed of glycerol carbonate and allyl polyoxyethylene ether; and the internal phase is composed of (2-acryloyloxy)ethoxybenzyltriethylammonium chloride, N-vinylpyrrolidone, an organic salt and water. The preparation method comprises the following steps: separately preparing the external phase and the internal phase; moving the external phase into a reaction vessel, turning on stirring, adding the internal phase into the external phase, removing oxygen by introducing a nitrogen gas, performing stirring for 20-40min, adding the initiator dropwise, closing the reaction vessel, and performing a polymerization reaction to obtain the target drag reducing agent. The drag reducing agent provided by the invention integrates a plurality of functions such as resistance reduction, sterilization, swelling prevention and discharge aiding, and solves a plurality of problems, for example, on-site liquid dispensing operation is complicated, the workload is large and the costs are high because conventional slick water needs to add a plurality of medicines such as a drag reducing agent, a bactericide, an anti-swelling agentand a discharge aiding agent.

The invention belongs to the technical field of concrete prefabricated floor slabs, and discloses an assembled prefabricated floor slab and a construction method thereof. The assembled prefabricated floor slab comprises a superposed beam and a prefabricated floor slab body spliced by unit board blocks arranged horizontally; connecting grooves are formed in the edges of at least two sides of each unit board block, are located on the upper surface of each unit board block, and are arranged at intervals in the side length directions, a groove segment is formed between two adjacent connecting grooves, the lower surfaces of the groove segments are flush with the lower surfaces of the unit board blocks, and the upper surfaces of the groove segments are not higher than the upper surfaces of the unit board blocks; connecting plates are arranged on the edges of other sides of the unit board blocks; the sides in which the connecting grooves of two adjacent unit board blocks are located are located on the top of the superposed beam and are fixedly connected to the superposed beam through first cast-in-place structures, and transverse reinforcements and ingroove connecting reinforcements are arranged in the first cast-in-place structures; the sides in which the connecting plates of two adjacent unit board blocks are located are oppositely arranged and connected through second cast-in-placestructures. The assembled prefabricated floor slab has good waterproof performance and sound insulation performance, the prefabrication rate is high, and the construction is efficient and convenient.

The invention relates to a spatial panel point structure of a steel truss and web PC (poly carbonate) combined bridge and a construction method of the spatial panel point. An embedded plate is embedded in concrete at a panel point of the spatial panel point structure of the steel truss and web PC combined bridge and connected with two steel truss and web pipes forming a 90-degree include angle and comprises two welded-together rectangular steel plates and at least two triangular reinforced steel plates, the triangular reinforced steel plates are welded to the inner sides of the rectangular steel plates forming a 90-degree included angle, and ends of the two steel truss and web pipes are respectively welded to the outer sides of the two rectangular steel plates. By the spatial panel point structure of the steel truss and web PC combined bridge, the problem about stress concentration and single function can be sufficiently solved.

The invention discloses a skid-mounted multi-well automatic well-selection metering device special for coal bed gas, and belongs to the field of coal bed gas field ground engineering. The automatic well-selection metering device at least comprises a multi-well well-selection metering system, a fuel gas metering system, an intelligent control cabinet, a base, a relevant circuit and a relevant pipeline, wherein the multi-well well-selection metering system and the fuel gas metering system are communicated through a main output pipeline of the relevant pipeline, are integrated with the intelligent control cabinet on the base in a skid-mounting way, are arranged close to the well hole area of a coal bed gas field, and are connected with a single-well incoming gas pipeline and an output production manifold to gather and transport coal bed gas. Through the combination of the automatic well-selection system, the automatic metering system and the automatic monitoring system, low-cost development and long-period unattended operation of a coal bed gas gathering and transportation metering system are realized, and the labor cost is lowered. Well selection automation is easy and reliable to control, convenience is brought to overall migration, the field construction workload is reduced, the floor area is small, and the construction period is short.

The invention discloses a multifunctional nano emulsion drag reducer used for shale gas fracking, which belongs to the technical field of yield increase of petroleum and natural gas. The drag reduceris composed of a water-phase solvent and an oil-phase solvent through inverse emulsion polymerization, the water-phase solvent comprises the following components by weight percentage: 10-15% of methacryloyloxyethyl trimethyl ammonium chloride, 1-3% of inorganic salt, 20-25% of glycerol carbonate, the oil-phase solvent comprises the following components by weight percentage: 30-45% of base oil, 10-20% of a water-soluble monomer, 3-5% of 2-phenoxyethyl acrylate, 1-3% of a first emulsifier, 1-3% of a second emulsifier, and the balance of water. The invention also provides a preparation method ofthe multifunctional nano emulsion drag reducer. The multifunctional nano emulsion drag reducer integrates a plurality of functions of drag reduction, sterilization, swelling resistance, and dischargeaiding, can effectively reduce frictional resistance, and has advantages of excellent sand-carrying performance, and good swelling resistance and discharge aiding effects.

The invention discloses an aeration chlorine dioxide generator, comprising a water supply system for providing water for reaction, and a reaction system for synthesizing chlorine dioxide, wherein the water supply system is communicated with a reactor of the reaction system, the reactor comprises a reactor body and an aeration pipeline assembly, the reactor body comprises a plurality of reaction chambers communicated in sequence, the reaction chamber at one end is communicated with a raw material supply device, the reaction chamber at the other end is communicated with a waste liquid outlet, each reaction chamber is communicated with a product outlet, the aeration pipeline assembly is communicated with each reaction chamber. The chlorine dioxide generator adopts multilevel plug flow reaction (such as four-level plug flow reaction) and multistage aeration process, so the reaction is more thorough, and residual liquid after reaction can be discharged after being up to standard.

The invention discloses an assembly-type steel structure out-hanging wall plate joint convenient to install and mold. The assembly-type steel structure out-hanging wall plate joint convenient to install and mold comprises an outer wall plate and an out-hanging wall plate, wherein the outer wall plate is divided into an upper layer outer wall plate and a lower layer outer wall plate, and a supporting plate is arranged between the upper layer outer wall plate and the lower layer outer wall plate; a prefabricated embedded part is arranged at one end of the out-hanging wall plate, and the out-hanging wall plate is connected with the upper layer outer wall plate through a first angle steel assembly; the lower portion of the out-hanging wall plate is provided with a support frame, the support frame is connected with the lower layer outer wall plate through a connecting plate, and the lower portion of the connecting plate is fixedly connected with the lower layer outer wall plate through a second angle steel assembly. The assembly-type steel structure out-hanging wall plate joint convenient to install and mold and the construction technology thereof are further improved and installed in the construction process based on the existing vertical-assembly wall plate swing construction method, and a wall plate and the outer wall plate are fixedly connected, so that the stability of connection between the wall plate and the outer wall plate and the using safety are further improved.

The invention discloses a beam bridge composite structure of an inverted-groove-shaped steel-concrete bridge deck slab and a construction method thereof. The inverted-groove-shaped steel-concrete bridge deck slab beam bridge composite structure comprises two supporting structures, a hot-rolled H-shaped steel beam set, a plurality of bridge deck slabs and finish-rolled deformed steel bars, whereinthe hot-rolled H-shaped steel beam set is provided with a plurality of hot-rolled H-shaped steel beams, the hot-rolled H-shaped steel beams are transversely erected between the two supporting structures, and support seats are arranged between the hot-rolled H-shaped steel beams and the supporting structures; the bridge deck slabs are sequentially and flatly laid on the two adjacent hot-rolled H-shaped steel beams in the vertical direction of a connecting line of the two supporting structures to form a bridge deck; and the finish-rolled deformed steel bars penetrate through the preformed holesof the bridge deck in the vertical direction of the connecting line of the two supporting structures, and then the multiple bridge deck slabs are spliced. A common steel plate beam is replaced with the hot-rolled H-shaped steel beams, the hot-rolled H-shaped steel beams are wide in flange plate width, large in lateral rigidity, high in bending resistance, good in local stability, high in quality guarantee level and so on, and under the condition that the same bearing capacity is achieved, steel is saved by about 5%-10% compared with welded ''I''-shaped steel.

The invention relates to a method for solving a low-voltage power line carrier communication island problem. A relay device monitors a carrier channel in real time, when the channel is idle, the relay device sends a broadcast command to electric meters near the relay device, addresses of the electric meters are recognized, and the electric meters around the relay device are classified; when the channel is busy, a concentrator reads the electric meters, the relay device monitors uplink and downlink messages of the concentrator, the uplink and downlink messages are analyzed, the relay device records communication conditions of the electric meters by the aid of communication counters of the electric meters, so that whether the electric meters are in a communication island or not is judged by the aid of the communication counters, and if the electric meters are in the communication island, the relay device is enabled. According to the method for solving the low-voltage power line carrier communication island problem, the carrier channel detection capacity is provided, communication collisions can be avoided, and the meter reading success rate is increased.

The invention provides an assembly type device foundation. The foundation comprises a bottom plate, side plates, ring beams, fixing elements and a cover plate. The side plates are spliced in an end-to-end mode and are fixedly arranged on the upper surface of the bottom plate. The ring beams are fixedly arranged at the upper ends of the side plates and include the cover plate ring beam and the device ring beam which are arranged side by side. At least one cover plate is arranged on the cover plate ring beam. The fixing elements are used for fixedly connecting the adjacent side plates. The two ends of each fixing element are fixedly connected to the two adjacent side plates. The assembly type device foundation is formed by splicing prefabricated elements, and is easy and quick to construct. By adopting the assembly type structure, the site construction workload is greatly reduced, the construction period is shortened, the labor cost is reduced, the influence on the surrounding environment is little, and environmental protection and energy conservation are achieved.

The invention discloses an integrated foldable beam and plate construction template which comprises a retractable idler wheel footing, a vertical rod coarse adjustment system, a vertical rod fine adjustment system, a foldable template panel and a foldable template panel support, and a hinge connecting system between two panels, wherein when an idler wheel is down to the ground, the retractable idler wheel footing easily folds and unfolds the template under the action of external force, and when the idler wheel retracts, the retractable idler wheel footing can increase the action area of the vertical rod and protects finished concrete. Through the manner, integrated processing of the template can be realized in advance, the templates can be rapidly unfolded and connected integrally in situ,so that the templates can be conveniently dismantled, folded and transported to next working face; modularized design can realize multiple repeated utilization of different projects, so that the workload and the constructors of site construction can be reduced, and the safety of the template system is improved.