25 results about "Retrofitting" patented technology

This application relates to the field of liquefied natural gas (LNG) storage and transportation, and more particularly to a method for modifying LNG carriers. The method includes: removing a first cover plate from the cargo hold and removing the spherical cargo tank and supporting components from the cargo hold; modifying the cargo hold walls to obtain the target cargo hold, and installing a second cover plate adapted to the membrane cargo tank on top of the target cargo hold; obtaining the spatial contour of the decahedron space, and laying wedges and adhesive materials on the cargo hold walls according to the spatial contour to form an installation plane for installing a membrane containment system on the cargo hold walls; laying the membrane containment system on the installation plane to obtain a membrane-type cargo tank, thus completing the modification of the LNG carrier's cargo tank. The method provided in this application can reduce the cost of obtaining membrane-type LNG carriers.

A building control system for at least one building. The building control system has a system controller and at least one building operation device with a respective operation controller. Electrical supply power is fed from a supply grid to the at least one building operation device. The system controller is set up to temporarily adapt a setpoint value for each building operation parameter in order to adapt the electrical supply power to the state of the supply grid and to stabilize the supply grid. The direct specification of a temporarily modified setpoint value for a building operation parameter is a simple and efficient option of integrating the subordinate open-loop or closed-loop controllers of the building operation devices into the building control system. This measure also makes simple retrofitting possible.

This utility model discloses a dual-input external water turbine hybrid device for cooling towers, relating to the field of energy-saving retrofitting technology for industrial circulating water cooling towers. It includes a water turbine and a motor. The water turbine has an impeller and a turbine shaft, with the impeller linked to the turbine shaft. Couplings are connected to both the output end of the motor and the end of the water turbine. Extension sleeves are provided at both ends of an adjusting sleeve, with T-shaped connecting shafts rotatably inserted into the extension sleeves. One end of the T-shaped connecting shaft extends rotatably into the adjusting sleeve. A gear disc is fixed to the end of the T-shaped transmission rod. Couplings are also connected to the ends of the two T-shaped connecting shafts. A transmission shaft is connected between the couplings at the output end of the motor and the end of the water turbine and the couplings connecting the T-shaped connecting shafts. The two gear discs selectively mesh with tooth grooves. In this utility model, the water turbine and motor are placed on opposite sides of the cooling duct. The water turbine or motor provides power independently for independent maintenance or replacement, or power can be supplied simultaneously.

This invention discloses an intelligent retrofitting system and method for existing earth-rock dams, comprising: a sensing module for collecting monitoring data, calculating a comprehensive monitoring system evaluation index, identifying and optimizing the monitoring system based on the index, and outputting optimized monitoring data and multi-dimensional defect identification results; an analysis module for calculating an analysis model evaluation index, diagnosing and optimizing the analysis model based on the index, and outputting dam safety status assessment results based on the optimized analysis model; a decision-making module for calculating a decision-making efficiency index, diagnosing and optimizing the decision-making process based on the index, and outputting control commands based on the optimized decision-making process; and a control module for calculating a control performance index, diagnosing and optimizing the control configuration based on the index, executing control commands based on the optimized control configuration, and feeding back the execution result data to the sensing module. This invention enables precise monitoring, scientific analysis, intelligent decision-making, and efficient control.

The utility model relates to heat treatment furnace technical field especially relates to a retrofitting device of new type heat treatment furnace heating pipe, including having the processing box, still including the toothing ring and sealing assembly, processing box inside is provided with the heating furnace, and the heating furnace outer wall rotationally arranged toothing ring, and the heating furnace inner wall is opened with two limit slots, and the toothing ring inner wall is fixedly connected with the connecting column, and the processing box front end is provided with sealing assembly, the utility model discloses drive first gear rotation, because first gear and toothing ring interlock, first gear will drive toothing ring rotation, the toothing ring drive inside connecting column slide along the limit slot inner wall to multiple heating pipe body can reciprocating rotation along the heating furnace inner wall, make heating pipe body can completely cover the magnetic core inside storage box, make the magnetic core even heat, solved the magnetic core inside storage box and each direction heating pipe body distance different, thereby leading to the magnetic core each direction uneven heating, and further influence heat treatment effect problem.

This invention discloses an intelligent adjustable multi-hydrofoil high-speed planing boat suitable for both new ship manufacturing and old ship retrofitting, belonging to the field of high-speed vessel technology. The invention includes a hull, three hydrofoil assemblies, and a stern propulsion mechanism. All three hydrofoil assemblies are equipped with a rack and pinion electric lifting mechanism, allowing manual setting and fixing of the overall hydrofoil height to adapt to different navigation draft requirements. Only the bow hydrofoil is hinged and equipped with an AI intelligent real-time control system, which can dynamically adjust the hydrofoil's tilt angle of attack during navigation, adaptively optimizing the hull's planing attitude and improving stability. The stern propulsion mechanism is equipped with a hydraulic lifting device, allowing for overall elevation adjustment of the water depth, achieving shallow-water grounding prevention and high-efficiency deep-water navigation. This invention is applicable to both the overall manufacturing of new ships and the retrofitting and upgrading of existing conventional planing boats. Its novel structural design distinguishes between two adjustment modes: fixed hydrofoil height adjustment and AI real-time intelligent angle adjustment. Combined with the hydraulically adjustable propulsion structure, it significantly improves the planing boat's intelligence, navigation stability, and water adaptability, demonstrating promising application prospects.

The application relates to the technical field of production line clamp installation equipment, in particular to a production line clamp transformation installation equipment, which comprises a main support structure, a precision adjusting assembly, a power driving module, an intelligent control module and a safety protection unit.The main support structure is made of high-strength alloy material and has the anti-deformation capability; the precision adjusting assembly realizes high-precision adjustment through sliding guide rails and ball screws; the power driving module combines hydraulic and electrical driving to ensure the response speed and stability; the intelligent control module realizes intelligent operation through multi-sensor data fusion; and the safety protection unit is fully covered to reduce the operation risk.The application can significantly improve the precision, efficiency and safety of clamp installation, and through the quick release mechanism and the standardized interface, the equipment adaptability is enhanced to meet the requirements of various production scenes.

This invention discloses a system and method for calculating the benefits of flexibility retrofitting a circulating fluidized bed (CFB) and wind power combined system, belonging to the field of thermal power generation technology retrofitting evaluation. The system includes a retrofitting scheme management module, which inputs one or more CFB unit flexibility retrofitting schemes and their technical parameters to be evaluated; an operation simulation module, communicatively connected to the retrofitting scheme management module, which simulates the operating status of the CFB unit within a target period after the implementation of the input retrofitting scheme and outputs operation simulation data; an economic calculation engine module, communicatively connected to the operation simulation module, which receives the operation simulation data and, in conjunction with retrofitting investment cost data, calculates one or more incremental economic indicators for evaluating the profitability of the retrofitting scheme; and an evaluation report generation module, communicatively connected to the economic calculation engine module, which generates an economic evaluation report recommending the optimal retrofitting scheme based on the economic indicators.

The invention relates to the technical field of refrigeration equipment recycling, in particular to a water machine central air conditioner based on multi-split outdoor units and a method. The water machine central air conditioner comprises a refrigerant circulation system which comprises a heat exchanger and at least one multi-split outdoor unit, and when two or more multi-split outdoor units are arranged in parallel; each multi-split outdoor unit and the heat exchanger form circulation through an air pipe and a liquid pipe; the water circulation system is provided with a cold tail end or a heat tail end, and the water circulation system exchanges heat with the refrigerant circulation system through the heat exchanger; according to the technical scheme provided by the invention, the multi-split outdoor unit is used as a main machine of the water machine central air conditioner, so that the multi-split outdoor unit which can only be disassembled and recycled into parts and waste metal originally can be used as a cold and hot water unit, and a new path is provided for reutilization of the waste second-hand multi-split outdoor unit; the solid waste treatment cost for treating the waste multi-split refrigeration air conditioning equipment is reduced, and meanwhile the economic benefits of waste multi-split recovery and transformation are improved.

This invention discloses a method and apparatus for evaluating wind turbine retrofitting schemes based on operational data, relating to the field of wind power engineering technology. The method includes: collecting at least five years of operational data from the target wind farm; preprocessing the data using the DBSCAN-segmented quartile combination algorithm; restoring the free-flow wind speed through primary and secondary correction functions to separate the impact of wind resource fluctuations and obtain the net power generation revenue increment from the retrofit; and establishing a multi-dimensional comprehensive evaluation system to assess the degree to which the technological upgrade improves the overall benefits of the wind farm. The apparatus includes a data acquisition module, a correction module, and an evaluation module, which execute the steps described above. This invention solves the problems of insufficient representative wind measurement data and single evaluation indicators for retrofitting schemes. By utilizing existing operational data from wind farms, it can effectively isolate the impact of wind resource fluctuations, explore the net power generation revenue increment brought about by the technological upgrade of wind turbines, improve the accuracy and comprehensiveness of the evaluation, and provide a scientific basis for the selection of retrofitting schemes.

This invention discloses a photovoltaic-storage collaborative power distribution system for public buildings, belonging to the field of smart grids. To address the problems of insufficient compatibility in retrofitting older buildings and weak robustness to prediction errors in existing technologies, this invention achieves automatic identification and conversion of communication protocols, voltage levels, and data formats of older equipment through a multi-protocol adaptive interface layer, eliminating integration barriers. Furthermore, it provides phased implementation plans through an older building compatibility assessment and progressive upgrade module, reducing the risk and budget pressure of one-time retrofitting. Through a two-stage stochastic optimization algorithm in a robust optimization engine, it simultaneously considers expected cost and risk variance in the objective function, and introduces a safety boundary that adapts to prediction errors, ensuring that the optimization strategy achieves a balance between the most likely and worst-case scenarios, avoiding the performance collapse of traditional point estimation optimization under error fluctuations.

This utility model discloses a mine hoist cage anti-fall device, comprising a frame, guide bars, and a speed sensor. The frame is equipped with guide bars and sprockets adapted to the chain. A speed sensor, a rotating shaft, and a positioning post are mounted on one side of the frame, with a spring connected to the positioning post. This utility model transmits the chain speed via the sprocket, which is then acquired by the speed sensor. When the chain speed exceeds a set value, the electromagnetic base is de-energized, causing the ratchet to rotate under the action of the spring. This causes the pawl to engage with the chain, and the guide bar's locking end face further limits the chain's movement, thus achieving automatic anti-fall. Compared to existing hoist cage anti-fall structures, this utility model adopts an integrated design of "speed monitoring - electromagnetic control - mechanical braking," solving the stability, adaptability, and response speed problems of existing devices. Its structure is simple, and it is installed on the outside of the hoist, facilitating retrofitting.

This invention relates to the field of thermal power generating unit system optimization and retrofitting technology, specifically a safe and rapid boiler cooling system after a thermal power plant shutdown. The system includes a condenser, condensate pump, deaerator, economizer, water-cooled wall, steam-water separator, boiler water tank, drain regulating valve, boiler drain expansion tank, boiler superheater, high-pressure bypass valve, boiler reheater, low-pressure bypass valve, vacuum pump set, air extraction device, and air filtration device. The air filtration device contains an air filter screen, and differential pressure measuring points are located before and after the air filtration device. This invention, by installing an air filtration device between the drain regulating valve and the boiler drain expansion tank, and by using an air extraction device to compensate for insufficient air extraction by the vacuum pump set, enables the thermal power plant to safely and rapidly cool the boiler after shutdown, shortening maintenance time and allowing the thermal power plant to regain profitability sooner.

This invention provides a method and apparatus for intelligent retrofitting of gravity dams, relating to the field of intelligent application technology for gravity dams. The method includes obtaining state information for the current time step based on a pre-established and optimized intelligent gravity dam model; determining an instantaneous reward sum based on reservoir water level, outflow, and unit output; determining an action value function containing applied actions and state information; updating the action value function based on the instantaneous reward sum to obtain updated state information after the current time step; and automatically controlling the updated state information. The intelligent retrofitting method and apparatus for gravity dams provided by this invention, through the dual influence of safety reward factors and excessive water level penalty factors on water level safety, can dynamically adjust water level control strategies, improving the adaptability and intelligence level of intelligent retrofitting of gravity dams.

This invention discloses an air distribution system and method for a circulating fluidized bed oxygen-enriched combustion boiler, belonging to the field of boiler technology. Two or more independent, compartmentalized air chambers are arranged below the air distribution plate. Each air chamber is supplied with air through independent recirculated flue gas branches and oxygen branches, achieving independent zonal adjustment of gas volume and oxygen concentration within the bed plane. At least two layers of oxygen-enriched nozzles are arranged along the furnace height, corresponding to the main combustion zone and the burnout zone respectively, achieving longitudinal staged oxygen supply. This invention solves the technical problem of simultaneously achieving fluidization uniformity and combustion completeness under oxygen-enriched combustion conditions by preparing primary oxygen-enriched gas, adjusting air distribution parameters in zones, staged injection of oxygen-enriched gas, and multi-parameter closed-loop control. This invention can control the bed temperature deviation within ±25℃, increase combustion efficiency to 96.8%, and increase flue gas CO2 concentration to over 83%, making it suitable for oxygen-enriched combustion retrofitting and new construction projects for various circulating fluidized bed boilers.

This application provides an integrated elevator shaft for retrofitting. The integrated elevator shaft includes at least three sets of shaft frames assembled sequentially from bottom to top. Each shaft frame comprises a cuboid frame consisting of columns and beams. Support frames are connected to the top and bottom surfaces of the cuboid frames. Each support frame includes two staggered support rods, with each end of the support rod movably connected to two diagonally opposite columns. This integrated elevator shaft for retrofitting, through modular design and assembly of the shaft frame, reduces the steps required for on-site splicing, welding, and assembly in traditional elevator retrofitting, thus improving production efficiency. Furthermore, the addition of support frames to the top and bottom surfaces of the shaft frame, using staggered support rods movably connected to the columns, effectively enhances the overall rigidity and stability of the integrated elevator shaft for retrofitting, preventing structural deformation due to improper handling or installation during transportation and installation.

This invention relates to the field of energy-saving retrofitting of high-pressure water descaling systems, and discloses a multi-objective energy-saving control method for accumulators in descaling systems. For high-pressure water descaling systems in steel rolling, the basic parameters of the descaling system and accumulator are first determined. Simulations are used to obtain the steel plate energy consumption, the minimum system pressure, and the accumulator cost. Relevant performance indicators and core accumulator parameters are selected as variables to be optimized. Then, with the goal of minimizing steel plate energy consumption and accumulator cost, a penalty function is introduced to transform constrained optimization into unconstrained optimization. A multi-objective intelligent particle swarm optimization algorithm is executed. After multiple iterations, including particle swarm initialization and objective function evaluation, the non-dominated solution of the external archive set is output as the optimal parameters for the accumulator. This method achieves the optimal match between the energy consumption of the descaling system and the cost of the accumulator, while ensuring that the system operating pressure meets the standard, thus improving the economy and reliability of the descaling system operation.

A snap-ring type LED vehicle light source module for retrofitting eliminates the need to remove the original transparent front cover of the headlight. During retrofitting, a hole is drilled in the center of the reflector cup at the rear of the light assembly, a circular snap-ring is installed, and the LED light source module is secured using mounting holes and screws on the snap-ring, completing the internal installation. This invention eliminates the need to remove the front cover, requires screws and nuts for fastening, and eliminates the need for decorative panels. The resulting appearance is clean and seamless, maintaining the integrity of the original vehicle, and reducing difficulty and cost. It is suitable for upgrading older vehicle models. The snap-ring has adjustment holes; with the help of adjustment screws and support shims, the vertical and horizontal angles of the light source component can be finely adjusted to obtain the ideal illumination angle.

This utility model relates to the field of elevator retrofitting technology in old residential communities, and discloses an elevator column corner protector, including a mounting plate, a guide section, and a corner protector plate; the mounting plate has a cross-shaped cross section with four vertical included angles, one of which is the first included angle, and the vertical included angle diagonally opposite to the first included angle is the second included angle; the guide section is disposed on the outer wall of the two sides of the first included angle, and the guide section includes multiple guide grooves evenly distributed horizontally along the outer wall, and each guide groove is disposed vertically along the outer wall; the corner protector plate includes a connecting plate with a right-angled fan-shaped cross section and an extension plate fixed perpendicularly to the two arc-shaped end faces of the fan; this utility model can vertically guide rainwater falling on the back side of the outer panel by providing multiple guide grooves on the mounting plate, thereby preventing rainwater from flowing horizontally or obliquely into the elevator shaft along the outer panel, effectively avoiding the problem of electrical equipment corrosion caused by rainwater leakage.

This invention discloses an electrification retrofit system and control method for aerial work platforms, comprising: a VCU (Vehicle Control Unit) communicating with the control components; an electric unit communicating with the VCU; and a CTC (Control Center Tunneling) whose input is connected to the VCU's CAN bus and whose output is connected to the electric unit. The CTC is also connected to a first hydraulic circuit via a first signal converter and a first pressure relief valve, and to a second hydraulic circuit via a second signal converter and a second pressure relief valve. The first and second signal converters are used to convert the control signals output by the CTC into action signals for the first and second pressure relief valves, respectively. This invention achieves coordinated processing of the original vehicle control signals and the electric system optimization strategy through the CTC. It finely controls the motor speed to reduce energy consumption during lifting, lowering, and rotating operations, and controls the hydraulic pump to unload and achieve concentrated power output during escape or climbing operations. This balances the economy of daily operations with the passability of special working conditions, realizing a standardized design for electrification retrofitting.

This application proposes a thermal storage and heat exchange system and method. The thermal storage and heat exchange system includes a thermal storage and release medium in the form of solid particles; a heater for heating the thermal storage and release medium passing through the heater; a first storage tank located downstream of the heater for receiving and storing the heated thermal storage and release medium; a heat exchanger located downstream of the first storage tank for receiving the thermal storage and release medium, allowing the thermal storage and release medium to exchange heat with a first medium delivered to the heat exchanger; and a second storage tank located downstream of the heat exchanger for receiving the thermal storage and release medium. The discharge port of the second storage tank is connected to the heater. The thermal storage and heat exchange system uses solid particles as the thermal storage and release medium. Through the coordinated operation of the heater, the two storage tanks, and the heat exchanger, the thermal storage efficiency of coal-fired power plant coupling is improved, adapting to the needs of flexible retrofitting of coal-fired power plants.

This utility model relates to a VOC treatment device for exhaust gas retrofitting, comprising a base, a filter box mounted on the base, a filtration mechanism and an air guiding mechanism disposed within the filter box, the air guiding mechanism comprising an air guiding assembly and a column fixedly mounted on the inner wall of the filter box, an air guiding vane rotatably connected to the column, the air guiding vane having a limiting hole, a sliding rod fixed to the top of the filter box, a strip frame slidably mounted on the sliding rod, and a lifting rod fixedly mounted to the bottom of the strip frame. By providing an air guiding mechanism, the air guiding vane is driven to reciprocate, thus widening the flow direction of VOC exhaust gas and preventing VOC exhaust gas from continuously blowing towards a certain area of ​​the filter screen, thereby reducing the absorption and filtration effect of the filter screen. The filtration mechanism effectively filters VOC exhaust gas, and the filter screen is easily disassembled for cleaning and replacement.

This invention discloses a method and equipment for low-carbon and energy-saving renovation of existing building exterior windows. The renovation method includes the following steps: reinforcing the connection between the original window frame and the wall with screws; fitting the bottom of the renovated window frame onto the outside of the original window frame; connecting the sides of the renovated window frame and the original window frame with connecting sleeves; pouring concrete into the original window frame through the connecting sleeves; and finally driving connecting screws into the connecting sleeves. The low-carbon and energy-saving renovation method of existing building exterior windows in this invention installs a new renovated window frame without removing the original window frame, and does not damage the wall structure. Concrete is poured inside the original window frame, and connecting and reinforcing screws, connecting sleeves, the bottom surface of the renovated window frame, and the inner wall of the original window frame are connected. By strengthening the connection between the original window frame and the wall, the bonding strength between the renovated window frame and the window body is improved. The renovation equipment is used to realize the above-mentioned renovation of existing building exterior windows by attaching the renovated window frame to the original window frame.