390 results about "Reservoir capacity" patented technology

The present disclosure relates to reservoirs for storing products in electronic smoking articles. The reservoir is manufactured from cellulose acetate fiber, thermoplastic fiber, non-thermoplastic fiber, or a combination thereof. The reservoir is substantially tubular in shape and is adapted to accommodate internal components of the smoking article thereby increasing reservoir capacity. The internal components particularly can comprise an atomizer, which may include a braided wick.

A shock absorber includes a piston coupled to a hollow piston rod fitted in a cylinder and a reservoir disposed at an outer periphery portion of the cylinder. A rod chamber in the piston rod communicates with a piston chamber in the piston via a radial passage. A hollow rod fixed to a partition wall member is inserted into the piston rod and the rod chamber is connected to the reservoir by the hollow rod. An extension-side disk valve generates damping force during an extension stroke of the piston rod and a compression-side disk valve generates damping force during a compression stroke. Because the hollow rod connects the rod chamber to the reservoir at the outer periphery of the cylinder, it is possible to secure sufficient reservoir capacity.

The invention relates to a construction method for a gas storage reservoir in a rock salt cavity, belongs to the salt mine mining and the rock salt cavity utilization fields, and mainly used for the dissolution construction of an underground gas storage reservoir in a eutectic salt deposit. The construction method is characterized in that a method for down-flow type gas storage reservoir construction comprises the following steps: fresh water is infused into a salt deposit by a water injection pump and through a water injection pipe, the rock salt is dissolved from up to down, and at the same time, the natural gas is infused; the expenses for oil consumption of the original oil cushion method and the cost for brine purification treatment can be saved by using the method; and the method is more economical and more environment-friendly. The gas storage reservoir can be used from the beginning of construction; the single well oil cushion method with three to five years of construction cycle is not required for constructing the gas storage reservoir; the construction of the gas storage reservoir needs no cycle basically; the reservoir storage capacity is small in the beginning period; the gas storage reservoir can be used as a large gas storage reservoir in the middle and the late periods; the problems of long period for the construction of the gas storage reservoir by using the oil cushion method, difficult detection of the oil water interface, as well as other relative technical problems are thoroughly solved; and the construction method is an ideal method for rapid dissolution construction of the gas storage reservoir in the rock salt deposit.

The invention relates to a reservoir capacity monitoring method, comprising the following steps: carrying out ortho rectification to a remote sensing image above the water body to be monitored, and then extracting the water body boundary through the remote sensing image so as to obtain a water body boundary polygon; overlapping the water body boundary polygon on the topographic DEM and extracting the intersection points between the water body boundary polygon and the topographic DEM as three-dimensional water boundary discrete points; interpolating the three-dimensional water boundary discrete points to obtain the water surface DEM; and evaluating the cubage contained between the water surface DEM and the topographic DEM terrain, so that the reservoir capacity monitoring result of the water body to be monitored is obtained. The invention makes use of the remote sensing and GIS and other spatial information technologies to accurately monitor the water surface as a curved surface, as well as the total reservoir capacity including the dynamic reservoir capacity. The invention also provides an optimization mode based on river segmentation and creates a buffer zone to enable the calculation to be controlled in an effective region, so the invention is provided with high precision and efficiency and has an operational popularization and application prospect.

The invention discloses a river ecological flow maintenance-orientated reservoir optimizing and dispatching method, which comprises the following steps of: diving influx flow of a reservoir into four intervals according to the magnitude of the flow, diving the storage capacity of the reservoir into four intervals by using an upper dispatching curve, a lower dispatching curve and a dead storage curve, and formulating different water supply and letdown rules when the influx is in different flow intervals and the water level is positioned in different storage capacity intervals. When the flow is positioned in the interval containing flat shoal flow, the influx flow is totally used for meeting river ecological flow after meeting the water supply requirement; when the influx is positioned in the minimum flow interval, the reservoir reduces letdown to maintain river low-water ecological pulse; and when the water level is positioned in the interval above the upper dispatching curve, the reservoir enlarges the letdown to ensure the flood control function. The method also comprises the following steps of: quantizing a target value of dispatching by adopting a variable range method to meet the constrained planned water supply reliability, and simultaneously optimizing parameters in the dispatching rule by using a genetic algorithm to acquire optimal dispatching parameters under the condition of meeting the planned reliability.

The invention discloses an optimizing method for parameters of a hydraulic fracturing proppant for a sandstone reservoir. The optimizing method comprises the following steps: inputting wellbore data and the like of the sandstone reservoir to be fractured into oil and gas reservoir capacity simulating software, simulating and calculating the reservoir capacity under different fracture parameters todetermine the optimal fracture flow conductivity required by the production of the reservoir; splitting by adopting a real rock plate of a reservoir to form a fracture, acquiring surface rough topographic data of the fracture, then manufacturing a sample preparation mould which is consistent with that the surface rough topographic data, and manufacturing an artificial sandstone rock sample with real fracture surface topography; performing a propped fracture flow conductivity test under different proppant parameters by adopting the artificial sandstone rock sample, and performing comparison analysis on a test result with a simulated calculation result to obtain an optimal proppant parameter which is in accordance with the characteristics of the reservoir. According to the optimizing methodfor the parameters of the hydraulic fracturing proppant for the sandstone reservoir, proppant parameter optimization results can be acquired efficiently and accurately by performing the propped fracture flow conductivity test through adopting the artificial sandstone rock sample which can reflect hydraulic fracturing real fracture surface topography of the sandstone reservoir.

The invention discloses a method and system for real-time automatic distribution of gate opening of a cascade hydropower station. The system includes a collection terminal, database server, application server, process library, policy library, information publishing cat, and remote control system, a collection element, transmission element, simulation element, and constraint element are arranged onthe application server and are connected with the database server, process library and information publishing cat. The invention can adjust the gate in advance, at the same time, the opening degree of each gate of the preset dispatching strategy is given by using the subsection step-size mutation algorithm, In addition to real-time monitoring of reservoir water level, effectively shorten the timeof making gate opening, A good balance has been struck between flood control and flood resource utilization, In order to reduce the working intensity of the operators and accurately control the waterlevel of the reservoir, the calculation process is simple and quick, and the follow-up effect of cascade flood control storage capacity under different flood discharge is taken into account, so as tomeet the needs of the actual operation of the power station for the calculation result accuracy, safety, real-time performance and economy.

The invention relates to an optimal scheduling method of a nonlinear-programming cascade reservoir group based on a GAMS (general algebraic modeling system). The method comprises the following steps of: establishing an objective function; considering constraint conditions such as reservoir water balance constraints, related engineering constraints, related power generation constraints, other policy constraints, maximum constraint on minimum output, maximum constraints on guaranteed output, minimum constraints on differences between initial and final reservoir capacities in transition periods, and maximum constraints on assurance rates; and solving. According to the invention, runoff processes occurring in the past, artificially-generated runoff sequences and future runoff forecast processes are all taken as deterministic input processes of reservoir operation scheduling. The runoff description method can be used for intuitionally and visually reflecting the continuity and periodicity of runoff changes in a certain period, and indirectly reflecting the statistical properties of runoffs. According to given runoff data, the operation of solving is performed by virtue of a deterministic optimization model to obtain an ideal optimal operation process; and then, according to some criterion, a scheduling discipline function is identified from the optimal operation process and is used for guiding the operation of a hydropower system.

The invention relates to a deposition and water level monitor and an application method thereof and belongs to the technical field of underwater deposition automatic monitoring in the water conservancy industry. According to the technical scheme, the deposition and water level monitor comprises a monitoring host (6) and a deposition and water level sensor (8), the deposition and water level sensor is in a strip shape, and a plurality of electrodes (7) are distributed in the length direction. The strip-shaped deposition and water level sensor is vertically and downwards arranged in the length direction, and the capacitance value of each electrode is measured; the deposition thickness is obtained in real time according to different capacitance values of all the electrodes and intervals between every two electrodes. By means of the deposition and water level monitor and the application method thereof, the water level and decomposition can be monitored at the same time, water surface and water bottom can be monitored at the same time, the decomposition thickness and the water level height can be monitored for a long time without manual intervention, then deposition rules of sludge and water level change situations are analyzed, and storage capacity or water flow is measured. The deposition and water level monitor and the application method thereof are high in accuracy, high in real-time performance, easy to arrange and small in later-period maintenance amount.

The invention discloses a method for determining capacity of an underground reservoir of a mine. The method includes steps of 1, measuring rock mass strength, coal seam buried depth and exploitation dimensions of the underground reservoir of the mine; 2, setting a reference underground reservoir of the mine with rock mass strength, coal seam buried depth and exploitation dimensions which are consistent with those of the to-be-measured underground reservoir of the mine; 3, measuring water storage capacity V2, reservoir area S and water head H of the reference underground reservoir of the mine and computing a water storage coefficient R according to the equation of R=V2/SXH; and 4, measuring reservoir volume V1 of the to-be-measured reservoir of the mine and computing the capacity of the to-be-measured reservoir of the mine according to the equation of V=V1XR. By the aid of the method, the capacity of the underground reservoir of the mine can be obtained, so that water resources of a mining area can be regulated.

An engineered, scalable underground containment system and method for storing compressed gases or liquids in permeable rock formations using conventional drilling techniques. The porosity and permeability of the formation may be enhanced to maximize reservoir capacity and increase the rate at which gases and liquids can be introduced into and removed from the reservoir. In some embodiments, layers of cap rock in the formation are utilized as containment barriers, and in some, containment barriers are constructed around the storage zones.

The present invention is directed to an improved handheld water misting fan device wherein the power source compartment is positioned within the device at a location remote from the fan motor thereby to remove any structure from the area bounded by the fan shroud. The relocation of the power source compartment leaves the area bounded by the shroud substantially unobstructed thereby to improve air flow. The device is formed in a dog bone shaped configuration to provide a narrow handle section for improved grippability, and an enlarged fluid reservoir at the lower end thereof for greater reservoir capacity.

The invention relates to the technical field of reservoir flood control scheduling, and specifically relates to a reservoir flood control optimized scheduling method capable of influencing implementation according to a dynamic reservoir capacity. The reservoir flood control optimized scheduling method capable of influencing implementation according to the dynamic reservoir capacity includes: firstly, establishing a reservoir flood control optimized scheduling model by regarding a maximum peak clipping criterion in flood control scheduling as the optimization criterion and replacing a water balance equation by Saint-Venant equations based on a one-dimensional unsteady flow mathematical model to reflect the influence of water return of a channel type reservoir on flood control and the propagation of flood waves in the reservoir; and then solving the model by employing a dynamic programming direct deduction method according to characteristics of multiple stages, multiple constraints and non-linearity of the reservoir flood control optimized scheduling model and a non-aftereffect requirement, and improving the solving efficiency by employing a parallel technology based on OpenMP. According to the method, effective analysis and calculation methods can be provided for optimized scheduling of flood control of the channel type reservoirs.

The invention relates to an evaluation method of shale organic matter porosity. The method is characterized by the following steps: 1) organic carbon content and total pore volume or total porosity of shale samples under homologous organic matter type and same organic matter thermal evolution degree in an area to be measured are measured; 2) relation between the organic carbon content and total pore volume or total porosity is established; 3) a plane-coordinate system with the organic carbon content being the horizontal axis and with the total pore volume or total porosity being the vertical axis is established; 4) data of the organic carbon content and total pore volume or total porosity of the shale samples are introduced into the plane-coordinate system, a straight line is fitted out, and slope and vertical intercept of the straight line are calculated; and 5) organic matter pore volume or organic matter porosity of the shale samples in the area to be measured is calculated, and organic matter porosity of shale is further evaluated so as to finish reservoir capacity evaluation of shale reservoir stratum of the area to be measured. The method of the invention is easy to operate, and is practical and low-cost.

The invention provides a management method of ecological flows river based on reservoir operation. The management method comprises the following steps: firstly, establishing a basic scheme, a compromise propose and an ideal scheme on the ecological flows management to be respectively suitable for the demands of high, medium and low water supply guarantee rate, and maintain health state of the basic, good and ideal ecological system of the river, simultaneously, dividing the capacity space of the reservoir to correspond to the management scheme of the ecological flows from top to down in sequence; then adopting a reservoir operation curve to guide so as to supply the water for the people and forming an integral reservoir ecological operation scheme by combining with the management scheme of the ecological flows; and finally applying a genetic algorithm, taking the water supply guarantee rate meeting the plan as the basic constrains and taking disturbance which reduces hydrologic regime of the river as an optimal target to optimize parameters of the reservoir capacity partition, dispatch curves and the like, so that the management scheme of ecological flows of the river based on the reservoir operation is obtained. The method can be suitable for demands of the different water supply guarantee rates, provide the optimized ecological flows process and effectively protect the ecological system of the river.

The invention discloses a physical simulation testing system and method for influences of a mine earthquake on a coal mine underground reservoir, and belongs to the technical field of mining engineering and water conservancy project cross-disciplines. The physical simulation testing method includes the steps of firstly, fixing a model box on a vibration table (2), placing model stratum materials in the model box to simulate stratums, making model coal pillars, and placing the model coal pillars into an air cushion simulation coal seam goaf area; arranging acceleration sensors, miniature pressure meters, stay wire type displacement meters and dial indicator displacement meters; measuring initial values of the sensors under the static effect, then simulating a goaf coal seam in a segmented mode, and recording data under the static effect; inputting several typical earthquake waves with different peak accelerations into the vibration table (2), and respectively recording data of the miniature pressure meters, the stay wire type displacement meters, the dial indicator displacement meters and the acceleration sensors after vibration is completed. The model profile acceleration change rule, the model surface displacement subsidence rule, the model coal seam top plate displacement change rule and the model coal pillar stress change rule after vibration are observed, and changes of the underground reservoir capacity are researched.

The invention relates to a high-steep side slope and intensely weathered bed rock solid waste landfill site seepage prevention structure and a treatment method thereof. The high-steep side slope and intensely weathered bed rock solid waste landfill site seepage prevention structure is characterized in that the back of a seepage prevention cloth surface layer is a reinforced steel bar net fine stone concrete leveling layer adhered by drill grouting concrete anchor rods, and the back of the leveling layer is a protection bottom layer formed by inlaying broken stones or pebbles into vertically arranged alternate drainage gabions along a sloping surface. Relative to the leveling by backfilling clay in the prior art, the invention has the advantages of short construction cycle, clay saving, project investment saving and big capacity of reservoir; relative to reinforcing the high-steep side slope by jetting concrete at present, the invention also has the advantages of simple construction, investment saving and good drainage effect, and good safety stability of an anchor bolt spray layer. The invention is economic and safe and meets the demands of a high-steep side slope and intensely weathered bed rock-paved HDPE (high-density polyethylene) geomembrane seepage prevention layer.

The invention discloses a cascade reservoir ecological random optimization scheduling model and a solving method. The establishment of the optimization scheduling model comprises the following steps:firstly, establishing a cascade reservoir ecological random scheduling model target function with the minimum corrected annual flow deviation AAPFD index; secondly, describing constraint conditions ofthe cascade reservoir ecological random scheduling model, wherein the constraint conditions comprise a water level constraint, a discharge flow constraint, a reservoir capacity constraint and a guaranteed output constraint. The ecological random scheduling model is solved by utilizing an SARSA algorithm in reinforcement learning, so that the problem of dimensionality disasters caused by a randomdynamic programming algorithm can be solved. The method can improve the ecological demands on the premise of guaranteeing the output of the cascade reservoir hydropower station, and has higher guidingsignificance for the ecological utilization of reservoir water resources. Meanwhile, the proposed SARSA algorithm can well obtain the result of the cascade reservoir random ecological optimization scheduling model in a short time.

The invention discloses a comprehensive treatment method for odour pollution of an urban refuse landfill, which comprises the following steps of: collecting living area refuses by adopting a refuse compressing vehicle, performing compression pre-treatment on the raw refuses, conveying the pre-treated refuses to the refuse landfill, discharging the collected refuse sewage into a percolate treatment plant, and after treating the sewage by each covered and sealed treating unit, delivering the treated sewage into a biofilter for deodorization; pouring the compressed refuses into a mobile sealed air-inducing deodorization room, and removing the offensive odour in the room by mobile on-line monitoring deodorizing equipment; and first covering a layer of soil on the compacted refuse layer, then uniformly laying air ducts, and laying a layer of HDPF film. The method of the invention can obviously reduce the yield of odour substances of the raw refuses, improve the odour pollution of a landfill operating area, effectively restrain the odour pollution of the refuse percolate treatment plant, obviously reduce the annual reservoir capacity construction cost of the refuse landfill, decrease the using amount of landfill soil, save land resource, greatly expand the effective reservoir capacity of the refuse landfill and prolong the service life of the landfill.

The invention relates to a method for determining the capacity of a liquid reservoir and the injecting amount of refrigerant of an inverter air conditioner, comprising the following steps of: 1. arranging a liquid level viewing mirror; 2. vacuumizing a refrigeration system and injecting the refrigerant; 3. starting the refrigeration system; 4. running an air conditioner system; 5. adjusting the frequency of a compressor. The method determines the injecting amount of the refrigerant of the system according to the lowest allowable liquid level of the liquid reservoir in the lowest frequency, determines the capacity of the liquid reservoir according to the highest allowable liquid level of the liquid reservoir in the highest frequency, and is suitable for an inverter (variable volume) air conditioner system.