Method to cool circulating water in cooling pond
SUBSTANCE: invention relates to the field of power engineering and may be used in return systems of water supply to thermal power plants with a cooling pond. The method includes discharge of warm water into the cooling pond, its cooling and intake of cooled water. To reduce temperature of water taken, barriers are installed onto the bottom of the cooling pond between the discharge and water-intake channels in the amount from 1 to 3, one end of which rests against the shore of the cooling pond of the thermal power plant, and the other one stretches towards the centre of the water area of the cooling pond. Installed barriers forward the natural flow of the circulating water from the thermal power plant shore to the centre of the pond. The height of barriers exceeds the water level in the pond by 0.5 m.
EFFECT: higher efficiency of cooling of discharged circulating water of a thermal power plant.
The invention relates to the field of energy and can be used in circulating water systems of thermal power plants with water-cooler.
There is a method of cooling the circulating water in the pond-cooler [RU NO. 2162919, EV 1/00, EV 7/04, WV 1/34, publ. 10.02.2001], which includes the discharge of warm water in the cooling pond, cooling and water intake, more efficient use of evaporation of the cooling pond by raising the bottom layers of the water supply part of the discharged warm water in the bottom part in the area of water intake. The swirling flow of the discharged warm water is through an expanding nozzle with an inner curved spiral guides installed on the pipeline at an angle of 45° to the course of transit flow and placed at the level of the water surface in the pond. Water is drawn selective intake.
The disadvantage of this invention is the lack of heat transfer due to incomplete use of the contact between the water of the cooling pond and cold atmospheric air.
The closest technical solution, selected as a prototype, is a method of cooling the circulating water in the pond-cooler [SU # 800308, EV 1/00, publ. 30.01.1981], including the discharge of warm water in the cooling pond, the cooling and intake chilled water, the more effect the main use of evaporation of the cooling pond by raising the bottom layers of the water supply part of the discharged warm water in the bottom part in the area of water intake.
The disadvantage of this technical solution is incomplete the effect of heat and mass transfer of a mirror surface of a pond-cooler and the cold air due to the presence of only translational motion of the cooled water.
The technical result of the present invention is to reduce the intake temperature of the water, increasing the economic performance of power plants.
The technical result is achieved in that in the method of cooling the circulating water in the reservoir-cooler, including the discharge of warm water into the water-cooler, the cooling and intake cooling water, what is new is that with the aim of reducing the temperature of the water consumption and improve the economic performance of power plants, on the bottom of the reservoir-cooler between sbresny and water channels set barriers in the amount of from 1 to 3, one end of which rests on the shore of the reservoir-cooler thermal power plant, and the other is towards the center of the reservoir, the height of barriers to 0.5 m higher than the water level in the reservoir-cooler.
The invention is illustrated by drawings. Figure 1 shows a diagram of the proposed method.
When the circulating water system, as, for example, at Berezovskaya GRES-1 (, Sharypovo, Krasnoyarsk region), the bulk of the wastewater moves through the switchgear is in the direction coinciding with the natural flow in the reservoir. Most of this mass is repeatedly passes through the condensers cooling systems. During the examination of the temperature field in the vicinity of the spillway was found that the distribution of heat flow prevents the counter natural flow regulated rivers, which in the upper part of the reservoir quite significantly. This leads to the fact that the water circulation is carried out on a minimal path from the discharge to the intake channel along the shore. In heat and mass transfer involved insufficient for efficient cooling of the area, which leads to increased water temperature on water intake and reducing the economic performance of power plants. To resolve this problem between sbresny and water channels establish special barriers to the bottom of the reservoir in an amount of from 1 to 3, which guide the natural flow of the circulating water from the shores of the power plant to the centre of the pond. The height of barriers to 0.5 m higher than the water level in the reservoir-cooler. This ensures that the radial distribution of heat flow and, accordingly, the cooling water consumption by lengthening the path of the circulating water in the reservoir and increase the length natural ohlord is of water.
These differences allow to draw a conclusion on the conformity of the proposed technical solution the criterion of "novelty". The features distinguishing the claimed method from the prototype, have been identified in other technical solutions in the study of this and related areas of technology and, therefore, provide the claimed solution according to the criterion of "inventive step".
The method is as follows.
Warm water sprocname channel 1 is the area of the spillway of the reservoir-cooler 2. Further, due to the natural flow in the reservoir, the water runs into the intake 4 and meets the special barriers 3, installed on the bottom of the reservoir. When this happens redirect the natural flow of the circulating water from the shores of the power plant to the center of the reservoir, providing the radial distribution of heat flow and, accordingly, the cooling water consumption by lengthening the path of the circulating water in the reservoir and increase the duration of the cooling water in the surface layers. Special barriers installed in an amount of from 1 to 3, one end of which rests on the shore of the reservoir-cooler thermal power plants, and other acts towards the centre of the waters of the reservoir, the height of barriers to 0.5 m higher than the level of the water in the reservoir-cooler. The length of the barriers must be equal to the radius of the circulating cooling water flow that is determined by the specific conditions and specified in-situ measurements of the hydrological conditions at each specific water body.
Implementation of the proposed method of cooling the circulating water in the reservoir-cooler when the circulating water system will improve the efficiency of the cooling water, respectively, to reduce the temperature of the inflowing water, which will enhance the economic performance of thermal power plants by increasing the efficiency of cooling of the discharged warm water of power plants.
The method of cooling the circulating water in the reservoir-cooler, including the discharge of warm water into the water-cooler, the cooling and intake cooling water, characterized in that to reduce the temperature of the inflowing water and improve the economic performance of power plants, on the bottom of the reservoir-cooler between sbresny and water channels set barriers in the amount of from 1 to 3, one end of which rests on the shore of the reservoir-cooler thermal power plant, and the other is towards the center of the water area of the reservoir, the height of barriers to 0.5 m higher than the water level in the reservoir-cooler.
SUBSTANCE: system includes sources of raw water (module A), facilities of water supply to a water treatment facility, which is connected to a storage of necessary supply of potable water, facilities for delivery of potable water to a consumer. The water treatment facility is water plant equipment (module B) for water treatment and enrichment, which comprises blocks of raw composition treatment, transformation and enrichment of water, and equipment to produce a range of finished products, including blowing, pouring of products into containers, sealing, labelling, briquetting. Each of the blocks is connected via an output variator block with a storage of potable water supply. The storage (module C) comprises groups of reservoirs (17/1-17/5) for reserve-reuse water and reservoirs (17/6-17/9) of a range of finished products. Reservoirs in each group (17/1-17/5 and 17/6-17/9) and groups of reservoirs are connected by pipelines to each other to form a closed system and with additional storages capable of bunkering of water (module S) and fuelling of railway (module X) transport. Facilities for delivery of potable water to a consumer include van (module J) and reservoir motor transport (module E).
EFFECT: uninterrupted supply of consumers with high-quality potable water, also during emergencies, and also treatment, transformation and enrichment of water to required level, besides, water quality remains unchanged in process of transportation and delivery to a consumer.
14 cl, 7 dwg
SUBSTANCE: system comprises two discharge stacks, a treatment facility, a pump to supply treated water, a step-up pump. The first discharge stack is arranged as capable of draining black water and kitchen sewage water into municipal sewerage. The second discharge stack is arranged with the possibility of discharging other domestic waters into a treatment facility. The treatment facility is connected by means of pipelines via a pump to supply treated water with an accumulating tank. The accumulating tank is connected via a pipeline with a step-up pump. The step-up pump is arranged with the possibility of supplying treated water via at least one hydraulic accumulator into a return water manifold. The return water manifold is arranged with the possibility of supplying treated water into at least one flush tank of a toilet and to a system of internal fire fighting.
EFFECT: design will make it possible to reduce consumption of domestic water.
11 cl, 1 dwg
SUBSTANCE: invention relates to auxiliary railway car equipment. Proposed water supply system comprises water tank 1, water consumers 9, water tank filling appliances, water cleaner filter 2 with settler 3, and control appliances to control water tank filling and settler cleaning. Filling appliances consist of water filling tubes 16 arranged inside tank and provided with baffle 17 and overflow tube 15. Water filling tube bottom ends are equipped with shut-off valves 18 communicated with control board 14 and appliances 19 to connection to servicing station. Water cleaning filter 2 comprises hollow case accommodating intake chamber 4, discharge chamber 5 and filtration elements 6 arranged there between. Discharge chamber 5 of filter 2 has branch pipes 7 provided with controlled valves 10 communicated with control board 14. Clean water consumers 9 are connected by pipelines 8 to branch pipes 7. Settle sediment level pickups 21 and water tank water level pickups 13 are connected with control board.
EFFECT: higher quality of water and increased overhaul life.
3 cl, 1 dwg
SUBSTANCE: invention is related to the field of water supply. System of water supply to settlement comprises cylindrical chamber of oxidation with cover equipped with water level meter, which interacts with device for connection-disconnection of initial water supply as it accordingly achieves lower and upper preset levels. Chamber is also equipped with nozzle for initial water supply, pipeline for purified water drain, unit for decomposition of residual ozone connected to cylindrical oxidation chamber by pipeline, and cavitator installed inside cylindrical chamber of oxidation. Device comprises circulation pump connected to cylindrical oxidation chamber by suction nozzle, and ejector connected to cylindrical oxidation chamber by pipeline. System has ozone generator, filter and additional pump. Besides it is equipped with the first electromagnet valve, which is connected by its hydraulic inlet to pipeline for purified water drain, the first multi-nozzle ejector mixer, which is connected by its discharge inlet to hydraulic inlet of the first electromagnet valve, and with its outlet it is connected to distribution water network of settlement.
EFFECT: increased quality of water purification.
4 cl, 1 dwg
FIELD: methods or layout of installations for water supply, particularly water supply devices using heat energy of water for alcohol production and public needs at alcohol production enterprise.
SUBSTANCE: water recycling system comprises at least one rectifying plant and reused water pipelines, which connect pumps, heat-exchangers and accumulation vessels one to another. At least one reused water pipeline is attached to at least one ejection device installed in point of at least one reused water pipeline connection with at least one accumulation vessel so that above ejection device may be directly linked to accumulation vessel and reused water pipeline may be connected to ejection device inlet. At least one active medium channel of at least one ejection device is communicated with active liquid, namely reused water. At least one passive medium channel of at least one ejection device is communicated with air. At least one section of above channel is arranged in natural water source and creates heat-exchanger with the water source.
EFFECT: increased cooling efficiency of water recycling system cooling, reduced additional power consumption and decreased water losses.
3 cl, 21 dwg
FIELD: methods or layout of installations for water supply, particularly for plants, which generate thermal energy and electric power with the use of solid fuel, prevention of natural water resource contamination with suspended solids and hazardous chemical compositions.
SUBSTANCE: system comprises sewage tank, runoff ditch, filtering dam, reagent preparation and supply station, floccule forming device, floccule distribution device, which distributes floccules over runoff ditch width, water deposit structure, sorption filter and water cleaning complex, which cleans water in winter period. Complex includes ground and sorption chambers and underground pipeline. Above components are arranged in series downstream the filtering dam and arranged below seasonal ground freezing level. Water deposit structure comprises primary and fine cleaning ground chambers. Bases of filtering dam, ground and sorption chambers and underground pipeline are on one level. Floccule forming device is made as multistage zigzag gutter.
EFFECT: increased operational efficiency and ecological safety, possibility to use ecologically clear natural materials for system construction.
SUBSTANCE: invention relates to hydraulic engineering and may be used in construction of hydraulic power plants in restricted conditions. The proposed task is solved by the fact that the proposed design of the hydraulic power plant building may locate a large number of units arranged in the horizontal plane at one elevation. The hydraulic power plant includes a turbine hall 1 and hydraulic units 2 arranged in rows. Hydraulic units 2 are arranged in one horizontal plane so that hydraulic units of the next row are placed in the gaps between hydraulic units of the previous row. Arrangement of hydraulic units in two rows, spiral chambers of which are displaced relative to each other, makes it possible to approach axes of the units towards to each other, and thus to reduce length of the HPP turbine hall. Arrangement of the hydraulic power plant building may be across the river bed or at the angle to the river bed.
EFFECT: reduced length of an HPP building results in reduction of capital intensity of the entire hydraulic engineering facility.
3 cl, 2 dwg
FIELD: power engineering.
SUBSTANCE: method to control a hydraulic accumulating station (HAS), comprising at least two energy systems, one of which is energy excessive, the other one - energy deficit, and at least two units, on the shaft of each one there is a reversible electric machine and a reversible hydraulic machine, consists in the fact that stator windings of the electric machine of the first unit are connected to the first energy system in the motor mode with the hydraulic machine in the pump mode. Stator windings of the electric machine of the first unit are connected to the energy excessive system. Simultaneously stator windings of the electric machine of the second unit are connected to the energy deficit system in the generator mode with the hydraulic machine in the turbine mode.
EFFECT: higher usage of installed HAS equipment and reduced HAS payback period.
2 cl, 2 dwg
FIELD: power engineering.
SUBSTANCE: device comprises a lower reach 1, an upper reach 2, a water conduit 3, a turbogenerator 4 and surfaces 5. Surfaces 5 are made as capable of receiving atmospheric moisture from the air flow and delivering it to the upper reach. Besides, surfaces 5 are raised to the height above the dew point for these atmospheric conditions. To support the surfaces 5, balloons or airships 6 are used.
EFFECT: expansion of functional capabilities and increased specific capacity of HPP by using maximum possible difference of heights between upper and lower reaches from height of actual condensation of atmospheric moisture in a cloud to ground level.
FIELD: power engineering.
SUBSTANCE: foundation under a common structure is assembled from steel or reinforced concrete blocks having sufficient buoyancy reserve, which are towed to the place of riverbed closure, where concrete stops are previously installed to ensure stop of the foundation at the specified point. One of the stops is connected with a coupling dam, under which sag pipes are laid for their connection with water conduits of float power units. Work is completed on build-up of walls on the foundation, using finished standard reinforced concrete boards, inserting them into reinforced concrete stands, and simultaneously the built-up walls at the side of the air lock outside is strengthened by inwash soil. Then both pairs of two-fold gates are installed, leaving them open before the sag pipes are laid, and a passage is closed, which is arranged between the wall of the lock chamber and the coupling dam of the opposite shore of the river. After float power units have been installed and connected to water conduits and power grid, and the site is closed by gates, the float hydraulic power plant with the matched lock chamber is commissioned.
EFFECT: possibility to simplify construction of a float hydraulic power plant combined with a lock chamber.
2 cl, 2 dwg
SUBSTANCE: estuary is protected against sea waters with a breakwater (dam) and gates that open to empty the estuary in case of ebb. A canal is laid along the river-sea line with installation of water conduits in its boards (walls) in the quantity equal to the design quantity of float power units. Upon completion of laying works at the side of the sea the water area is closed with gates locked at the pressure of the river flow during ebb and opened with another tide overcoming the river flow, which provides for passage of vessels, also tugboats with float power units to the place of their installation.
EFFECT: no-pause operation of float power units installed along both boards of a canal.
SUBSTANCE: hydraulic accumulating power plant comprises a pond located on the earth surface, a water intake facility, a vertical shaft of a discharge water conduit, a communication shaft, aeration shafts, a vertical shaft of power discharge, a turbine room with aggregate blocks, a bottom pond with the main chambers and an inclined transport tunnel. The bottom pond additionally comprises short tunnels, connecting galleries, a switching chamber, discharge connecting water conduits and a distribution chamber. The main chambers of the bottom pond are made in the form of spirally arranged tunnels of round cross section in plan and are connected to each other by means of connecting galleries. Aggregate blocks of the plant unit by means of suction pipes and short tunnels are connected with the distribution chamber, which in its turn is connected with the main chambers of the bottom pond with the help of discharge connecting water conduits. The method for tunnelling of the bottom pond includes tunnelling of the main inclined transport tunnel from the surface to the underground structures with the help of a tunnelling mechanised complex and erection of the main chambers of the bottom pond. When the bottom pond main chambers are tunnelled, the switching chamber is arranged to redistribute rock discharge during tunnelling and to reduce length of rock discharge along a conveyor.
EFFECT: possibility to arrange high-discharge hydraulic accumulating power plants on plane territories, at large depths from 300 m to 2000 m, optimisation of works performance and maximum mechanisation of tunnelling of underground mines, by means of wide usage of efficient tunnelling mechanised complexes.
2 cl, 4 dwg
SUBSTANCE: mobile small hydro-electric station of sleeve type with a transverse jet turbine includes a water-retaining shell fixed in the upper part due to back stays and guy lines of fitting to coastal anchor supports, and in the lower part by means of a unit of fixation to an apron fixed by bed anchors to the bottom of the watercourse. The water-retaining shell has cuts at the side of coastal abutments symmetrically relative to a flexible sleeve for provision of its protection against direct exposure of the flow as it overflows via a crest into a lower reach. A hydraulic unit is installed on a water-filled shell jointly with the flexible sleeve and has a flow rate controller and a servodrive, which provide for its most optimal operation.
EFFECT: invention makes it possible to create a temporary hydroeconomic unit that solves local power supply, irrigation, water supply, fish farming, and also provides for confinement of forest fire spread, provides for the possibility of multiple usage of the proposed structure under emergency situations.
SUBSTANCE: hydraulic accumulating power station comprises a pool located on earth surface, a water intake facility, a vertical discharge water duct, a communication shaft, an aeration shaft, an inclined shaft of power delivery, a station unit with hydraulic units, a lower pool with main chambers and an inclined transport tunnel. The lower pool additionally contains short tunnels, connecting galleries, discharge connecting water ducts and a distributing chamber. Main chambers of the lower pool are made in the form of helically arranged tunnels in plan. The station unit with hydraulic units is placed in the centre of spirals of the lower pool. Hydraulic units of the station unit by means of suction pipes and short tunnels are connected with the distributing chamber, which by means of discharge connecting water ducts arranged radially relative to it, is connected with the main chambers of the lower pool. The lower pool is tunnelled by a combined method consisting in tunnelling of the main inclined transport tunnel from the surface to underground facilities with the help of a tunnelling mechanised complex and arrangement of main chambers of the lower pool. At the same time in parallel to the main inclined tunnel an additional transport tunnel is arranged, and then the lower pool is arranged, which is a continuation of transport tunnels. The lower pool is arranged in two stages: at the first stage a pilot mine is tunnelled with an open tunnelling mechanised complex, and at the second stage, using blast-hole drilling, it is finalised to design contour. Simultaneously with tunnelling of the main chambers of the lower pool they arrange a station unit with hydraulic units, which is located in the centre of spirals of the lower pool.
EFFECT: invention makes it possible to solve a problem of placement of high-discharge hydraulic accumulating power plants in plain territories, by arrangement of a lower pool and a discharge station unit under earth at depths from 300 m to 2000 m, and to optimise works performance and to mechanise tunnelling of underground mines to the maximum, through joint usage of open production tunnelling mechanised complexes and up-to-date equipment complex for performance of blast-hole drilling.
FIELD: power industry.
SUBSTANCE: hydroelectric plant includes a housing made in the form of a vertical cylindrical chamber and a cylinder installed inside it at some distance, which form a composite channel, a compressor station interconnected via an air pipeline to a receiving chamber, a hydrojet turbine with the main generator, which is installed at the outlet of the turbine pipeline located in upper part of the receiving chamber, working fluid storage and level sensors. The plant is equipped with Pelton-type turbines with generators, the first and the second elevated tanks, additional level sensors, one of which is located in the first elevated tank, and the second one is located in the second elevated tank, and an air tank interconnected via an additional air pipeline with a check valve to the first elevated tank. Elevated tanks are installed inside upper part of the cylinder. The first elevated tank has the shape of a funnel, which is connected in the middle to the turbine pipeline. The second elevated tank is put on the first elevated tank and equipped with pressure hoses located in the first tank so that their outlets are located above the funnel opening of the first elevated tank. Pelton-type turbines are installed opposite nozzles of the hydrojet turbine along the perimeter of the receiving chamber. The receiving channel connects the receiving chamber to the second elevated tank. The storage is located in upper part of the housing. On pressure hoses and at the inlet of the turbine pipeline there installed are valves, and on some shafts with turbines there installed are flywheels.
EFFECT: lower consumption of power required for water return to water storage reservoir.
FIELD: power industry.
SUBSTANCE: hydroelectric power plant includes a channel connected to a water reservoir initiating a dynamic flow and orthogonal turbines located inside the channel. The channel represents a pipe consisting of connecting links and provided with the turbines equally spaced throughout the pipe length. Turbines are made in the form of tubular modules with a drive shaft outlet and have the possibility of installing the modules between the connecting links of the pipe. In addition, annular elements of aerodynamic profile are fixed in modules.
EFFECT: higher efficiency of a hydroelectric power plant, lower structural complexity and metal consumption of the device, improved manufacturability, installation and operation and uniform distribution of loads between turbines.
4 cl, 4 dwg
FIELD: hydraulic and hydropower engineering, particularly for building water-retaining structures to provide power supply to small settlements and farms.
SUBSTANCE: method involves assembling flexible apron assembly consisted of flexible floor apron and flexible downstream apron in watercourse; securing thereof to watercourse bottom by anchors. Water outlet assembly including hydroelectric generator arranged inside it is secured to floor apron and downstream apron by rigid ties. Connected to water outlet assembly by ties are water retaining shell and rope system secured to anchor poles located on watercourse bank.
EFFECT: reduced time of structure assembling and costs for electric power generation.