46results about How to "Safe and economical operation" patented technology

The invention discloses an implementation method of a smart power grid resource real-time operating state three-dimensional visualization display system. The implementation method comprises the following steps of adopting a 360-degree panorama model at the designated position to visually display real environment of field power grid resources, wherein the real environment can be displayed through dynamic flight of a three-dimensional mode; clicking a three-dimensional line and a device model to check standing book material information in a production management system when browsing a three-dimensional map; obtaining current real-time operating data of a power device and acquiring real-time data for displaying an operating state of a power transmission power grid and an operating state of a power distribution power grid. The implementation method uses remote sensing data, topographic data and the data of the 3D model as a core, fully meets the service management demand, achieves interactive bird's-eye view based on three dimensional terrain landscape, rotational flight displaying at any angle and in any orientation, stepless zooming and quick seamless browsing, achieve management, inquiry, analysis and other service of the power grid resources in the three-dimensional environment and provides a new management means for resource management of power enterprises.

The invention relates to an economic optimized dispatching method for energy storage power stations. A system utilized in the economic optimized dispatching method comprises independent adjustable battery packs, a transformer, a transformer bus, and an energy storage monitoring system power dispatching center, wherein the independent adjustable battery packs are connected on the bus on the low-voltage side of the transformer, and the transformer and the energy storage monitoring system power dispatching center are sequentially communicated with a power grid dispatching system. The economic optimized dispatching method includes the steps of initializing data of a energy storage power station; confirming the number of the independent adjustable battery packs; reading operation parameters of the independent adjustable battery packs and uploading the same to the energy storage monitoring system power dispatching center; confirming the optimum economic optimized dispatching scheme to obtain the optimum economic optimized dispatching model; and outputting a power dispatching command of the battery packs of the energy storage power station. Concrete structure of the energy storage power station and technical characteristics of energy storage packs are fully taken into consideration, the lowest total cost is taken as the optimizing object, power demand of battery operation and dispatching is taken as a limiting condition, and the economic optimized dispatching method is simultaneously applicable to energy type energy storage power stations and power type energy storage power stations.

The invention discloses a pneumoelectric interconnection system optimization operation method considering wind power uncertainty. The method comprises the steps: building a pneumoelectric interconnection system random optimization operation model through employing the minimization of the total operation cost of a pneumoelectric interconnection system as a target and combining with a set related operation constraint; aiming at the nonlinear power flow equation constraint of a natural gas network, adopting a linearization method for processing; describing the uncertainty of wind power output byusing a scene analysis method, generating a large number of wind power output scenes through a Monte Carlo simulation method, then applying a scene reduction method based on synchronous back substitution elimination to reduce the scenes to obtain a small number of representative scenes, and then converting the random optimization problem of the pneumoelectric interconnection system considering thewind power uncertainty into a mixed integer linear programming problem of a plurality of deterministic scenes to be solved. Under the condition that the wind power output is uncertain, the economicalefficiency and safety of the operation of the pneumoelectric interconnection system and the absorption capacity of the wind power are effectively improved through optimal scheduling.

The invention discloses a load coordination control method for a header system boiler, relating to the load coordination control method for boilers at power station. The invention solves problem of unstable vapor pressure in a main vapor pipe of the header system operation boiler adjusted by manpower currently and realizes an automatic adjustment of pressure of the main pipe. The pressure load of the main pipe in the system adjusts control mode of each boiler in coordination with DCS; then according to overall load demand of the system, load given value of each boiler is adjusted by increment and sent to the DCS of each boiler of the system; the adjustment method of the load given value of each boiler is that: when load difference of each boiler of the system is over big and the load needs increasing, the load given value of the boiler with minimum load needs increasing; when the load needs decreasing, the load given value of the boiler with maximum load needs decreasing and the given value is fixed. The load coordination control method for the header system boiler has the advantages of being able to effectively control fluctuation of the pressure of the main pipe within +/-0.1MPa.

The invention discloses a corrosion and scale inhibitor for treating circulating cooling water. The corrosion and scale inhibitor is composed of the following raw materials in percentage by mass: 3-15% of polyaspartic acid, 0-8% of organic phosphine, 2-10% of phosphine carboxylic acid, 5-10% of carboxyl group-containing polymer, 1-3% of copper corrosion inhibitor, 0-16% of zinc salt and the balance of water. The corrosion and scale inhibitor disclosed by the invention is low in phosphorus content and biodegradable, and no water body eutrophication is caused by pollution discharge; the corrosion and scale inhibitor has excellent corrosion and scale inhibition properties and can effectively improve the heat exchange effect of a central air conditioning refrigerating unit when being applied in a central air conditioning circulating cooling water system, the average temperature difference of a condenser is not larger than 1.0 DEG C and the average temperature difference of an evaporator is not larger than 2.4 DEG C, and thus safe, stable and economical operation of the unit is ensured.

The invention relates to a control and adjustment device (1) for a driving arrangement (7) of a movable press beam (8) of a bending press (3), in particular a press brake, comprising a protective housing (29) that has an access opening (30) for a foot (25) of an operating person and comprising a pedal-like actuating element (32) arranged in the protective housing (29). At least one detecting means, which is communicatively connected to an open-loop control and monitoring device (2) of the bending press (3) and which is formed by a motion profile detecting means (40), is associated with the actuating element (32).

The invention discloses a draining and oxygen adding device for a full-automatic heater. The device comprises the following components: a PLC; a pressure detector for collecting a pressure signal in pipeline at an oxygen adding point, and transmitting the pressure signal to the PLC; a dissolved oxygen content detector for collecting a dissolved oxygen content at a detecting point and transmittingthe dissolved oxygen content signal to the PLC; an oxidation-reduction potential detector for collecting an oxidation-reduction potential at the detecting point and transmitting the oxidation-reduction potential signal to the PLC; a hydrogen conductivity detector for collecting hydrogen conductivity at the detecting point and transmitting the hydrogen conductivity signal to the PLC; and a flow controller connected with an oxygen source and for controlling oxygen addition flow according to the PLC command. The invention also discloses a draining and oxygen adding method for the automatic heater. The oxygen adding device of the invention can avoid clogging of a drainage valve on a high-pressure heater shell side pipeline, and maintain safe and economical operation of the unit at an OT working conditions.

The invention discloses a flow-equalizing self-stabilization air quantity measuring device, relates to an air quantity measuring device, and aims to solve problems of high fluctuation of measurement results, poor stability and inaccurate measured data of a measuring device due to the fact that an existing pulverizing system of a boiler is compact in arrangement, mounting space for an inlet of a coal mill is narrow, the measuring device is mounted difficultly and the air quantity of the inlet of the coal mill is uneven and unstable. A first ventilating duct, an air flow equalizer and a second ventilating duct of the flow-equalizing self-stabilization air quantity measuring device are linearly arranged and are sequentially communicated with one another, a plurality of spacers are fixedly connected into a flow equalizing area, a through hole is machined on a side wall of a testing area of the air flow equalizer, a speed testing tube penetrates through the through hole, portions of a tube body of the speed testing tube positioned outside the side wall of the testing area are respectively communicated with two differential pressure tubes and two cleaning air tubes, the speed testing tube is provided with a plurality of air inlet holes positioned on the side wall of the tube body in the testing area, a temperature transmitter is arranged inside the air flow equalizer, and a pressure transmitter is perpendicularly mounted on the outer side wall of the air flow equalizer. The flow-equalizing self-stabilization air quantity measuring device is used for measuring air quantities of inlets of coal mills.

The invention relates to a cleaning agent for a household heating system consisting of various metal materials. The cleaning agent comprises the following components in percentage by weight: 3-20 percent of propylene glycol, 2.5-10 percent of a corrosion inhibitor, 0.1-5 percent of sulphamic acid, 5-25 percent of ethylene diamine tetra and the balance of demineralized water. The invention also provides a preparation method of the cleaning agent. The cleaning agent disclosed by the invention is compounded of an organic anti-scaling component and an organic acid and can effectively strip off and dissolve old scales in the household heating system equipment and prevent secondary water scales; the cleaning agent can effectively alleviate corrosion to metal materials of the household heating system equipment, effectively remove the water scales, rust slag and the like from the household heating system equipment and solve such problems of the household heating system caused by scaling as low heat transmission efficiency or water circulation blocking, so that all equipment in the whole household heating system can operate safely and economically, and the aims of reducing water pollution, saving energy and reducing consumption are fulfilled.

The invention discloses an ultra-high-voltage AC power grid high-voltage reactor optimization configuration method, which comprises the steps: 1) determining a target framework structure of an ultra-high-voltage grid; 2) obtaining parameters of each electronic component in the ultra-high-voltage AC power grid; 3) establishing ultra-high-voltage power grid electromechanical transient and electromagnetic transient simulation models based on an ADPSS; 4) arranging system operation modes; 5) carrying out operating characteristic analysis on the ultra-high-voltage AC power grid having no parallel high-voltage reactors; 6) carrying out operation characteristic simulation calculation and analysis on the ultra-high-voltage power grid with installation position and compensation degree of the high-voltage reactor being taken into overall consideration; 7) calculating minimum level index of reactive play of the ultra-high-voltage AC power grid; 8) establishing an objective function according to relation of the reactive play of the ultra-high-voltage AC power grid, transmitting power and the compensation degree; 9) determining optimal compensation degree; 10) carrying out optimization configuration on the reactor of the ultra-high-voltage AC power grid; and 11) checking safety and stability of the ultra-high-voltage AC power grid. The method can be used for ultra-high-voltage AC power grid high-voltage reactor optimization configuration.

The invention discloses a visual display method of accident emergency repair and inversion based on a distribution network. The visual display method is characterized by comprising the following steps: The visual display method has the beneficial effects that (1) panoramic visual functions of power outage management, fault treatment and an operating state of a switch are realized through comprehensive analysis of the running situation, running risk and automation application effect of a main distribution network by adopting a visual panoramic display way; (2) the modernization requirements of safety, reliability, high quality, high efficiency and economic operation of power enterprises and broad users on an electric network can be satisfied; (3) the informatization management level of the power enterprises is increased.

The invention relates to a method for reducing the boiler hearth abrasion through computer control. The method comprises the following steps that the negative pressure of an outlet of a hearth is kept unchanged, a primary fan is gradually increased until the maximum output of the fan, a DCS: centralized dispersion control system is used for automatically taking point and record the primary air volume F1 and the air chamber pressure value Pfslt, and an empty board resistance curve F1--Pfslt is drawn according to the data obtained by an experiment, and an empty plate resistance curve is simulated by means of the corresponding relation of the DCS system and the data. A circulating fluidized bedboiler is high in coal type adaptability, the service life and the utilization rate of the boiler are caused to be low, and the wear mechanism of the boiler has extremely intimate connection with the concentration of materials and the wind speed of the hearth; and according to the method, starting from a boiler control angle, the lowest primary air volume is determined through a cold state test, a proper material layer thickness is selected, and a strategy for slowing down the boiler hearth abrasion through automatic control of the computer is established

The invention discloses a power grid future state model maintenance tool. The power grid future state model maintenance tool comprises a commissioning project future state model management module, a power grid internal storage management module, an adapter management module, and a model exporting module. The power grid future state model maintenance tool can be adopted for solving the problems that a model is built repeatedly and parameters are inconsistent, and source side maintenance, global sharing, distributed storage and unified management of the model are realized, so that the quality of the power grid model is improved, and a good basis is laid for power grid analog simulation. Through practical application of the power grid future state model maintenance tool, integrated and off-line analysis and control over a power grid can be realized, the capacity for dispatching and controlling the power grid is improved, the wide-range resource optimization and allocation capability is improved, the streamlined dispatching and management level is raised, and safe, stable, reliable and economic operation of the power grid can be guaranteed.

The invention discloses a three-phase heating non-stick oily sludge pyrolysis device, so as to mainly solve the problem that treated discharges do not meet the standard when the conventional treatmentdevice treats wastes in an oil field. The three-phase heating non-stick oily sludge pyrolysis device is characterized in that a spiral material pushing vane (5) is fixed outside a rotating shaft (3);a circular protective wall (10) is fixed outside a barrel body (11); a heating cavity (8) is formed between the barrel body (11) and the protective wall (10); three exhaust gas inlets are formed in the bottom of the protective wall (10); a smoke discharging port (7) is formed in the top of the protective wall (10). The three-phase heating non-stick oily sludge pyrolysis device is simultaneously suitable for treating wastes such as waste slag liquid of an oil field, oil-enriched oil shale, various types of waste engine oil and living wastes, and the device cannot be coked and do not generate polluting discharges at the end of the treatment.

The invention provides biomass energy and a method for detecting the degree of corrosion of the biomass energy to a superheater. A biomass material and a coal material are mixed and combusted, on theone hand, purposes of diluting alkali metal and reducing the content of chlorine element are achieved, the problems of dust accumulation, slag formation and corrosion are relieved, on the other hand,the condition of combustion is improved by interaction between biomass and a coal, the combustion efficiency is improved, and safe, economical and stable running of a boiler is ensured. The biomass and the coal are taken as the raw materials for blending combustion, reduction of the degree of corrosion of the superheater is explored by different mixing ratios, furthermore, the invention provides adetecting method to detect the degree of corrosion of the biomass energy to the superheater, and therefore, safe, economical and stable running of the boiler is ensured.

The invention relates to an electric vehicle charging device and power grid coordinated interaction control system and method. The system comprises: a charging device used for outputting the electric energy of a power grid to an electric vehicle so as to charge the electric vehicle; a charging station monitoring system, wherein thecharging station monitoring system communicates with the charging device and is used for monitoring the working state of the charging device in real time and controlling the output power of the charging device according to an output power scheduling plan and a charging output power demand; an operation management system, wherein the operation management system communicates with the charging station monitoring system and is used for issuing the output power scheduling plan to the charging station monitoring system; and a power dispatching system, wherein thepower dispatching system communicates with the operation management system and is used for monitoring the load state of a power distribution transformer in real time and issuing a charging load dispatching plan to the operation management system in combination with the electrical load demand of the power grid. According to the invention, the output power of a charging station is monitored in real time, so that ordered charging of an electric vehicle and safe and economical operation of a power distribution network are realized, and safe, reliable and stable operation of the load of the charging station is ensured.