15 results about "Compressor station" patented technology

The invention relates to a computer-implemented method for controlling and / or regulating a single compressor station having a compressor (C1), wherein a detected actual pressure is to be maintained in a pressure fluid system by means of the single compressor station within a pressure range between an upper pressure limit and a lower pressure limit. A tree structure is generated having nodes (5 to 10) in the form of simulated system states that produce self-simulated load instructions, different load instructions and the system states that produce self-load instructions being simulated starting from the selected system states at the point in time ti for the next point in time ti + 1 (i = 1... n-1), the invalid system states being deleted, and the selected system states being selected from the selected system states at the point in time ti. A system state pressure class is assigned to the respective actual pressure, an expected control state of the compressor is determined at a point in time t + 1 and a control state class is assigned to the expected control state, and the system state with the lowest cost value is selected for each system state. Wherein the load command with the lowest cost value is selected from all the nodes (5 to 10) selected at the point in time tn, and wherein a control command saved for the control command at the point in time t1 is transmitted to the compressor (C1).

This invention provides a unit restoration method and system that considers the bidirectional coupling characteristics of power transmission networks and gas transmission networks, belonging to the field of power system safety and stability technology. The method involves determining the objective function for restoring the system's power generation capacity; constructing restoration constraints for the power transmission network; constructing constraints for the gas transmission network; constructing coupling constraints for three types of coupled equipment: gas turbine units, electric-driven compressor stations, and electric-driven gas sources; combining the objective function with the constructed constraints of the power transmission network, gas transmission network, and the three types of coupled equipment, establishing a mixed-integer linear programming model; solving the mixed-integer linear programming model to obtain the restoration strategy for the power transmission network at various time periods. This invention addresses the highly coupled power transmission and gas transmission networks by modeling the unit restoration problem considering the bidirectional coupling effect of the two networks as a mixed-integer linear programming model, solving the model to obtain the unit restoration strategy, and rapidly restoring the system's power generation capacity.

The application discloses a semi-hardware dynamic simulation method and simulation platform of a compressor station, which is applied to the field of system simulation and comprises the following steps: a simulation model of the compressor station is established, the simulation model is compiled and run, and the simulation model is packaged into an fmu file; based on an NI simulation machine, the fmu file is deployed according to third-party software to generate a standard electric signal; the standard electric signal is input and output through an NI hardware board card of the NI simulation machine; a control system model of the compressor station is established, the control system model acquires the standard electric signal through an actual PLC control system; the control system model sends a command control and monitors the simulation model through a man-machine interface; and based on the NI simulation machine as an intermediate medium, the simulation model is run under a Windows system or a Linux system to realize data interaction between the simulation model and the control system model.

A kind of surplus energy power generation system for natural gas distribution pressurizing station, system includes: natural gas compression subsystem for providing compressed natural gas, its inlet is the natural gas inlet of system, i.e. upstream natural gas, its outlet is compressed high pressure natural gas, continue to be transported to remote city;Natural gas expansion subsystem for providing medium pressure natural gas and low pressure natural gas, its inlet is the natural gas inlet of system, i.e. upstream natural gas, its outlet is expanded medium pressure natural gas and low pressure natural gas, respectively transported to peripheral remote and peripheral close city;Organic rankine cycle subsystem, with the hot gas stream of the compressed natural gas output as heat inlet, carries out power generation.The present application can provide pressure suitable natural gas for close, medium, remote three places respectively, and effectively utilize the waste heat when natural gas distribution pressurizes, improve system energy utilization rate, make the whole system energy maximization utilization, reduce the consumption of fossil fuel and greenhouse gas, pollution gas emission.

This utility model discloses a horizontally movable compression station, including a main structure and a garbage bin. A groove is recessed on one side of the main structure, and a compression mechanism is installed at one end of the groove. A vertically penetrating unloading trough is provided on the top wall of the other end of the groove. A sewage pipe is fixedly installed on the main structure below the groove. A window is provided on one side of the garbage bin, opposite the groove. A sealing door capable of concealing the window is slidably installed on the outer wall of the garbage bin. A drainage groove is formed on the inner bottom wall of the garbage bin, and a water collection hopper is fixedly installed on the bottom of the garbage bin around the drainage groove. The water collection hopper is connected to the sewage pipe through a drain pipe. The garbage bin is connected to the main structure through a locking mechanism. With the above configuration, wastewater generated during garbage compression can be discharged from the garbage bin in a timely manner, preventing wastewater accumulation inside the garbage bin.

The invention discloses a natural gas pipeline network operation optimization method considering neural network-mechanism fusion, and aims to solve the problem that precision and solving efficiency are difficult to consider when a natural gas pipeline network is optimized by a traditional pure physical mechanism model. The method comprises the following steps: firstly, collecting and preprocessing data such as a pipe network structure and an equipment operation state, constructing and training a compressor rotating speed, power, surge boundary and stagnation boundary agent model, and reconstructing into a mixed integer linear programming constraint; a flow direction auxiliary variable is introduced to convert a hydraulic constraint into a convex relaxation constraint, constraints such as node flow balance and compressor station load distribution are combined, an optimization model with minimization of total energy consumption and carbon emission of a compressor as a target is constructed, and a heuristic enhanced branch cutting algorithm is adopted for solving. According to the method, the balance between the model precision and the solving efficiency is realized through neural network-mechanism fusion, the optimized operation scheme of the pipe network can be output, and scientific decision support is provided for economic, low-carbon and safe operation of the natural gas pipe network.

This utility model discloses a support and limiting structure for a compressor station, installed on a steel frame. A compressor head body is mounted on the steel frame, including a limiting hook, a limiting assembly, and a driving assembly. A connecting rod is fixedly connected to the top of the limiting hook, and the top of the limiting hook is rotatably connected to the inner wall of the steel frame. The limiting assembly includes a sleeve, a movable rod, and a limiting pin. First supports are fixedly arranged at intervals on the inner wall of the steel frame, with fixed shafts on one side of the two first supports close to each other. The sleeve is rotatably fitted onto the two fixed shafts. The movable rod slides through the sleeve, and its bottom is rotatably connected to the top of the connecting rod. A limiting hole is opened on the side wall of the movable rod, and the limiting pin slides through one of the first supports. The driving assembly is located on the inner wall of the steel frame. Through this arrangement, the lower section of the limiting hook can be kept below the compressor head body, providing support for the compressor head body in case of hydraulic system failure, thus improving the safety of the device.

Herein pipeline pressure, temperature and NGL constituents are manipulated for the transportation and optional storage in a pipeline system of natural gas mixtures or rich mixtures for delivery of chilled Products for downstream applications. Pressure reduction from a last compression section delivers internally chilled Products for reduced capital and operating costs. A high lift compressor station before the pipeline terminus provides pressure differential for Joule-Thompson chilling of the pipeline contents. The chilling step can be retrofitted to existing pipeline systems, and the chilling steep can include a turbo expander or the like for recovery of pipeline pressure energy for power generation. For like throughout, with this higher pressure operation, the effects of enhanced NGL content results in a reduction in diameter of the pipeline by at least one standard size. Substantial overall reduction in energy consumption and associated CO2 emissions is thereby achieved through integrated pipeline / processing applications.

The application discloses an intelligent complex natural gas pipeline network pipeline application verification method under an open transportation mode, which comprises the following steps: obtaining pipeline network and pipeline application basic data, and establishing a topological structure; introducing node, pipeline and booster station physical characteristics and boundary constraints, and constructing a pipeline application verification non-convex MINLP model; solving the model by using a two-stage algorithm, judging the application technical feasibility according to the model, and outputting a scheduling scheme or an infeasible explanation. The application comprehensively considers factors such as pipeline hydrodynamics, compressor station discrete state switching and non-convex feasible region boundary, innovatively proposes a two-stage solving algorithm, combines one-dimensional nonlinear function piecewise linear approximation, high-dimensional nonlinear function space grid approximation and compressor non-convex feasible region convex relaxation technology, effectively solves large-scale non-convex mixed integer problem solving difficulties and low calculation efficiency and other problems, and provides theoretical support for intelligent operation scheduling under the open transportation mode of the natural gas pipeline network.

The invention provides an air compressor load distribution method and device, computer equipment and a storage medium, and belongs to the field of equipment control. The method comprises the steps that physical property parameters of compressed gas in multiple parallel air compressors are obtained; establishing a load distribution model by taking the load distribution proportion of each compressor as a decision variable and minimizing the total energy consumption of the compressor station as a target function and combining the equipment characteristics of the compressors and the gas physical property parameters, and setting outlet pressure constraint and outlet temperature constraint; performing iterative optimization solution on the load distribution model by adopting a dogvessel colony algorithm to generate an optimal load distribution scheme meeting the outlet pressure constraint and the outlet temperature constraint; and according to the optimal load distribution scheme, dynamically distributing the operation load of the plurality of parallel air compressors. According to the method, efficiency attenuation caused by long-term overload operation of a single device is avoided, the overall energy efficiency of the system is improved through collaborative optimization, and dual benefits of energy efficiency optimization and device service life prolonging are achieved.

A process to remove heat from a cooling medium and replenish a frac water retention pond, such process comprising the following steps: a. exposing a hot exhaust gas stream to a chamber cooled by said cooling medium in a condensing portion of a carbon capture unit; b. condensing at least a portion of said hot exhaust gas stream in said condensing portion of the carbon capture unit to allow the condensation and removal of the water vapour from the exhaust gas, thereby generating a water stream, said water stream exiting the carbon capture unit at an outlet thereof; and c. discharging said water stream into said frac water retention pond.

This invention discloses a spray cooling and intelligent control method for a natural gas compressor post-air cooler, relating to the field of natural gas boosting and transportation technology. The method includes the following steps: collecting structural and physical property parameters, air thermodynamic parameters, and natural gas thermodynamic parameters of the post-air cooler finned tube bundle; calculating the heat release of natural gas within the finned tube bundle; calculating the required spray water volume to reach the required temperature for external natural gas transmission; determining the optimal spray equipment installation scheme by comprehensively considering the internal space location of the post-air cooler, nozzle atomization effect and droplet diameter, energy saving and consumption reduction, and economic factors; dynamically adjusting the spray volume and start / stop conditions of the spray cooling system according to the processing capacity of the post-air cooler and the dynamic changes in the ambient temperature; and realizing intelligent control of the natural gas outlet temperature of the post-air cooler finned tube bundle based on the functions and control process of the temperature control system. This ensures the safe, stable, and efficient operation of large-scale compressor stations and achieves energy saving and consumption reduction.

A process to remove heat from a cooling medium and replenish a frac water retention pond, such process comprising the following steps: a. exposing a hot exhaust gas stream to a chamber cooled by said cooling medium in a condensing portion of a carbon capture unit; b. condensing at least a portion of said hot exhaust gas stream in said condensing portion of the carbon capture unit to allow the condensation and removal of the water vapour from the exhaust gas, thereby generating a water stream, said water stream exiting the carbon capture unit at an outlet thereof; and c. discharging said water stream into said frac water retention pond.

The utility model discloses a medical membrane separation oxygenerator, which relates to the technical field of medical oxygen production and comprises an oil-free compressor station, a compressed air pipeline is arranged at an air outlet of the oil-free compressor station, and an oxygen separation mechanism is arranged at the other end of the compressed air pipeline. The end, away from the compressed air pipeline, of the oxygen separation mechanism is fixedly connected with an oxygen conveying pipe, and the other end of the oxygen conveying pipe is connected with an oxygen storage tank. The oxygen separating mechanism comprises oxygen separating membranes which are arranged in an annular array mode, the two ends of each oxygen separating membrane are provided with a flow dividing box and a hollow gas collecting base respectively, and the top of each flow dividing box is fixedly connected with a sealing cover; the oxygen separation membranes arranged in the annular array mode are communicated through the flow dividing box and the hollow gas collecting base, the multiple oxygen separation membranes work at the same time, the oxygen generation efficiency is improved, the valves are arranged at the two ends of each oxygen separation membrane, and the single oxygen separation membrane can be conveniently detached and replaced under the non-stop condition.

One process of the invention includes removing heat from a cooling medium and replenishing a frac water retention pond. The process includes exposing a hot exhaust gas stream to a chamber cooled by the cooling medium in a condensing portion of a carbon capture unit, condensing at least a portion of the hot exhaust gas stream in the condensing portion of the carbon capture unit to allow the condensation and removal of water vapour from the exhaust gas, thereby generating a water stream, wherein a water stream exits the carbon capture unit at an outlet thereof and the water stream move to the frac water retention pond. Another process includes using water to lower a temperature of a cooling medium in a hydraulic fracturing process step. Another process includes using condensed water from a post-combustion carbon capture unit to replenish a frac water source.