Cooling tower of thermal power station

FIELD: thermal power stations.

SUBSTANCE: proposed cooling tower has casing with air-intake holes that accommodates water dispensing devices connected to pipeline carrying water heated in condenser; it also has cooled water accumulating pond disposed under casing that communicates via pipeline with turbine condenser. Cooling tower is provided with air outlet holes and its casing is mounted horizontally and made in the form of parallelepiped or semi-cylinder; air intake holes are disposed on one end of casing and air outlet ones, on its other end; air outlet holes communicate through air duct with suction pipe of boiler air fan; air movement within cooling tower is ensured due to vacuum built up by boiler air fan.

EFFECT: reduced capital outlays, enhanced economic efficiency of thermal power station.

1 cl, 1 dwg

 



 

Same patents:

FIELD: cooling of circulating water.

SUBSTANCE: the vertical eddy-type nozzle-draft cooling tower has an axial-flow fan with profiled blades twisting the air flow, housing in the form of a tube, water drops separator, tray for collection of water, filter, circulating pump, comb and nozzles for spraying of water inside the tube bulk. The tube is made vertical with a diameter equal to 400-1200 mm, and the air flow twisted by the fan at an angle equal to 30-60 deg to the tube generating line is fed to it from the bottom upwards, and water is injected to the counter-flow through the nozzles. The cooling tower is provided with a trap for collection of water film draining over the tube inner surface, in the bottom of the tube the fan body is positioned with a clearance in the trap.

EFFECT: enhanced heat exchange and mass transfer, improved compactness.

2 cl, 4 dwg

FIELD: cooling of circulating water in small bulks-consumption of water fed to the consuming equipment - up to 10 cu.m.

SUBSTANCE: the ejection cooling tower has a body, water distributor unit made in the form of an ejector, lower tray for water collection and a mixing chamber. The mixing chamber has a round section, is positioned vertically, and an annular gap is provided between the body and the mixing chamber, a guide nozzle, reflector and a baffle plate are installed above the mixing chamber, a nozzle spraying the heated water from the using equipment, and a cup-shaped reflector are positioned inside it, and the ejector nozzle providing water recirculation is positioned below it at the inlet to the chamber in the lower part of the body, has a circular part for air inlet.

EFFECT: enhanced efficiency of the cooling process, reduced power intensity of the process by 30-40% and reduced overall dimensions of the unit (the outside diameter of the body is 600 mm).

1 dwg

FIELD: cooling towers and systems of water recirculation of industrial enterprises.

SUBSTANCE: the invention is pertaining to the method of cooling a temperature of water in the heat-exchange aggregates, for example, in cooling towers and may be used in the systems of water recirculation of industrial enterprises. The method of cooling a temperature of water in the heat-exchange aggregates provides for the action by airflows on an evaporated surface of water. At that the surface of water in addition is exposed to a high-frequency ultrasonic action using the frequencies corresponding or multiple to the frequencies of the natural thermal oscillations of molecules of water: VA = Vnto·n and VA = Vnto /n, where:VA - frequency of acoustic oscillations; Vnto - frequency of natural thermal oscillations: where: i - average number of the intermolecular spacing intervals passed by a molecule or a particle till their concussion; L - a distance between the centers of molecules; d - a diameter of a molecule; k - Boltzmann constant; T-thermodynamic temperature of water; m - a molecular (corpuscle) mass; n - an integer 1,2,3,4,5, etc., at that with an amplitude of an oscillation displacement of the acoustic waves, equal or exceeding the value of the intermolecular spacing interval, at which the forces of attraction between the molecules of the water are insignificantly small: A ≥ l, where: A - is an amplitude of an oscillation displacement of the acoustic waves; l - a spacing interval between molecules of water, at which forces of attraction between them are insignificantly small: l ≈ 10-9 m. The high-frequency acoustic action on the evaporated surface is conducted simultaneously in two mutually intersecting directions. At that one of the directions is tangential to the evaporated surface. The high-frequency acoustic action on the evaporated surface is conducted mainly in the direction of motion of the aerodynamic airflows of the cooling tower. The evaporated surface is exposed to the high-frequency acoustic action frontally with an intensity level ≥ 145 dB, and tangentially - with a level of intensity ≥ 120 dB. The invention allows to raise intensity of cooling of water.

EFFECT: the invention ensures an increase of intensity of cooling of water.

4 cl, 3 dwg

FIELD: heat-exchanger equipment, particularly for distributing, circulating, or accumulating liquid, as well as water recycling systems for power plants and industrial enterprises.

SUBSTANCE: structure has water feeding pipelines, wherein each pipeline is linked with separate water sprinkling section. Water distribution structure has two identical water sprinkling sections located one adjacent another and connected with water feeding pipelines by three support pipelines spaced equal distances one from another along water feeding pipeline. Each support pipeline is linked with horizontal water distribution pipeline in central part thereof. Water distribution pipelines are installed in parallel one to another and are mutually communicated by parallel water delivery pipelines having water sprinkling nozzles. Water sprinkling nozzles are uniformly distributed along water delivery pipelines. Two adjacent water sprinkling nozzles of each water delivery pipelines are spaced equal distances from the nearest water sprinkling nozzle connected to water delivery pipeline, wherein the distance is equal to distance between neighboring water sprinkling nozzles. Drift diameters of water distribution pipelines decrease in steps in direction from support pipeline connection with water distribution pipeline ends. Each end of water distribution pipeline is provided with flush orifice having 25 mm diameter. Diameter of one support pipeline located between two other ones exceeds diameter of these support pipelines by 20-30%.

EFFECT: increased efficiency of water distribution among annular water sprinkling sections and increased water cooling efficiency.

2 dwg

Cooling tower // 2256136

FIELD: heat exchange apparatus; water cooling towers; power engineering and manufacture of building materials.

SUBSTANCE: proposed cooling tower includes tower proper with multi-section swirling unit in form of curvilinear guide members and water supply pipe line. Curvilinear guide members are discrete and varying in direction; at the end of each guide member in its lower part there is sill for dividing the flows; on the external side, device is provided with chutes having spraying and overfilling units. Upper part of each chute has port connected with sill and lower part has perforated plate which is connected with guide member; spraying unit is located in upper part of pipe line.

EFFECT: enhanced efficiency of heat exchange.

5 dwg

FIELD: the invention may be used for protection from frosting the inner elements of mechanical-draft towers used for reverse water supply systems.

SUBSTANCE: a mechanical-draft tower has a sprinkler, a drop catcher, a ventilator and a diffuser in its upper part of the water distributing system in the form of piping feeding water to the middle tier of the tower provided with water spraying nozzles. Introduction of posts of the water distributing system into the tower is made through air inlet windows and the square of the air inlet windows is reduced in winter time by installing shields in the upper part of the air inlet windows. A drainage cap installed in the lower tier of the tower. It is provided in the its upper part with a hackle for which goes the lower edge of the lower part of the paneling on which there is a groove . Shields reducing the square of air inlet windows are installed in the groove and in the lower part of air inlet windows U-profile is installed. The low part of shields is installed in U-profile. At that a gap sufficient to provide capacity for the tower for work is left between U-profile and the upper edge of the tower's basin.

EFFECT: the invention allows to simplify construction and provide reliability of the tower's work in winter conditions.

2 cl, 2 dwg

FIELD: compensation of refrigerant vapors in refrigerating plants.

SUBSTANCE: the eddy evaporative condenser has eddy heat exchangers in the form of large - diameter pipes with U-shaped ribs forming ducts for passage of refrigerant secured on the outer surface, axial-flow fans with profiled blades, nozzle fin with nozzles, circulating pump, filter, tray, drop separator and an outer guard. Eddy of air flow in the heat exchanger is effected by the axial-flow fan with profiled blades installed at angle ϕ=40°-65° between the generating line of the fan body and the tangent line to the blade at the air outlet hear the body wall. Eddy heat exchangers are made with a ribbing coefficient varying in accordance with relation: γ=πD/(nl)=1-5, where D - the pipe diameter; n-quantity of ducts; l-the duct width, which in turn vary within D=400-1000 mm; l -20-140 mm; the duct height l1=20-60 mm; pipe wall thickness δ=3-6 mm; duct wall thickness, δ1=2-4 mm, and pipe length L to diameter ratio D, L/D≤40.

EFFECT: reduced power and mass characteristics of the offered evaporative condenser.

2 cl, 5 dwg

Cooling tower // 2248510

FIELD: heat exchanging apparatus.

SUBSTANCE: cooling tower has tower with sprinkler, basin, and ports for air supply. The ports are adjacent to the top edges of the movable deflectors provided with an actuator made of a winch with ties. The top member of each movable deflector is pivotally connected with the top edge of the port for permitting rotation around the horizontal axis. The facing of the top member of the movable deflector and member for overlapping the port are made of the cloth made of a flexible material. The bottom edge of the cloth is secured to the polymeric or metallic pipe with closed faces and partially filled with dry sand, gravel or granular filler. The ties from winches pass through blocks mounted above the movable deflectors and under the pipes. The ends of the ties are secured to the bottom edges of the top members of the movable deflectors from the side facing the cooling tower.

EFFECT: enhanced efficiency of cooling.

1 cl, 7 dwg

FIELD: heat-power engineering.

SUBSTANCE: proposed sectional cooling tower includes peripheral and inner circular sprinkling sections, water catcher located above these sections and sprinkler located under them. Lower portion of cooling tower is provided with air intake ports and pond. Sprinkling sections are connected to water distributing system consisting of two supply pipe lines and support pipe lines. Inner and peripheral sprinkling sections are formed by dispensing pipe lines laid in way from periphery to axis of tower and communicated in pairs by means of spraying pipe lines. Water distributing system is provided with water distributing riser located in central portion of tower and provided with vertical partition dividing it into two cavities for supply of peripheral and inner sprinkling sections. Supply pipe lines are located in pond and are connected to different cavities of water distributing riser. Support pipe lines are connected to water distributing riser by means of distributing pipe lines laid in pond and connected to respective cavities of water distributing riser in upper portion. Cross-sectional area of tower occupied by peripheral circular sprinkling section is 55 to 65% of total cross-sectional area of tower occupied by peripheral and inner circular sprinkling sections. Air intake ports are provided with swivel dampers mounted on vertical axles and stops for locking these dampers in closed position. Each damper is mounted for free turn and area of each damper is divided by vertical axis into two unequal parts for automatic opening by incoming air and hermetic closing by escaping air.

EFFECT: enhanced efficiency of distribution of water between sprinkling sections and cooling of water.

3 dwg

FIELD: heat-power engineering.

SUBSTANCE: proposed sectional cooling tower includes tower with peripheral and inner circular sprinkling sections mounted inside it, water catcher located above these sections and sprinkler located under them. Lower portion of tower is provided with air intake ports and pond. Sprinkling sections are connected to water distributing system consisting of two supply pipe lines and support pipe lines. Inner and peripheral sprinkling sections are formed by dispensing pipe lines running from periphery to axis of tower which are communicated in pairs by means of water spraying pipe lines. Water distributing system is provided with two circular water distributing pipe lines laid in pond. Supply pipe lines are located in pond and are connected to one of water distributing pipe lines each. Support pipe lines are connected to circular water distributing pipe lines by means of distributing pipe lines laid in pond. Support pipe lines connected to peripheral circular sprinkling section are connected to one of circular water distributing pipe line and support pipe lines connected to inner circular sprinkling section are connected to other circular water distributing pipe line. Inner diameter of pipe lines connected to inner circular sprinkling section is lesser than inner diameter of pipe lines connected to peripheral circular sprinkling section. Cross sectional area of tower occupied by peripheral circular sprinkling section is 55 to 65% of total cross sectional area of tower occupied by peripheral and inner circular sprinkling sections. Air intake ports are provided with swivel dampers mounted on vertical axles and stops for locking these dampers in closed position. Each damper is mounted for free turn and area of each damper is divided by vertical axis into two unequal parts for automatic opening by incoming air and closing by air escaping from ports of cooling tower.

EFFECT: enhanced efficiency of water distribution between circular sprinkling sections; enhanced efficiency of cooling water.

3 dwg

FIELD: thermal power stations for power generation.

SUBSTANCE: proposed thermal power station has boiler with burner communicating through live-steam pipeline with turbine, the latter communicating with condenser through dead-steam pipeline. Condenser is made in the form of steam-air heat exchanger provided with air admission and air discharge holes. Air-discharge holes are communicating through air duct with suction pipe of boiler air fan.

EFFECT: enhanced economic efficiency of thermal power station.

1 cl, 1 dwg

FIELD: thermal engineering; thermal power stations.

SUBSTANCE: proposed thermal station operating process is characterized in that steam extracted from turbines is passed to low- and high-pressure regenerative heaters wherein full-flow condensate downstream of condenser and feedwater are sequentially heated, then source makeup water is heated upstream of deaerator. Source makeup water is heater upstream of deaerator in low-pressure heater closest to condenser, and regenerative heating of full-flow condensate is started in low-pressure heater second form condenser.

EFFECT: enhanced economic efficiency and operating reliability of thermal power station.

1 cl, 1 dwg

FIELD: thermal engineering; power generation.

SUBSTANCE: proposed operating process of thermal power station is characterized in that full-flow condensate is heated in low- and high-pressure regenerative heaters by steam extracted from turbines and back-pressure steam is cooled down in circulating-water turbine condenser. Part of full-flow condensate is additionally heated in heat-pump plant condenser connected in parallel with low-pressure heater second along full-flow condensate path; circulating water heated in turbine condenser is used as low-potential heat source in heat-pump plant.

EFFECT: enhanced economic efficiency of thermal; power station.

1 cl, 1 dwg

FIELD: heat power engineering.

SUBSTANCE: invention can be used in thermal power stations for economic automated control of steam-turbine power-generating units under nominal and sliding pressure conditions. According to invention, regulative valves on lines delivering steam to turbine are kept fully open under all operating conditions of power-generating unit. To change over from one steady-state mode to the other within the limits of rated load, fuel feed regulating valves and feed water regulating valves delivering fuel and water into boiler are acted upon. To change over for load exceeding rated one, regulating valves on lines of steam extraction for regeneration, which are also fully opened, are partially closed. Valves delivering steam to turbine are partially closed for a short period of time when frequency in power supply network deviates from tolerable value, with subsequent return of valves in initial fully open state after setting of frequency within preset limits.

EFFECT: provision of operation of steam-turbine power-generating unit under all loads with minimum losses for steam throttling, materially increased economy of operation.

2 cl, 1 dwg

FIELD: heat power engineering.

SUBSTANCE: proposed thermal power station contains steam turbine with condenser to which cooled and heated circulation water pipelines are connected, and also turbine main condensate pipeline which includes low-pressure regenerative heaters connected to regenerative steam extractions. Heat pump plant evaporator is included into heated circulation water pipeline. Condenser of heat pump plant is connected through heated medium line into main condensate pipeline after first condensate low-pressure regenerative heater in direction of condensate flow in parallel with low-pressure heater of second stage.

EFFECT: improved economy of heat thermal power stations.

1 dwg

FIELD: heat power engineering.

SUBSTANCE: according to proposed method, steam from turbine extractions is fed to regenerative high and low pressure heaters in which main condensate, after turbine condenser, and feed water are heated successively, and primary makeup water is delivered to heat supply system makeup water preparation plant and is deaerated in vacuum deaerator. Primary water is heated in lower low-pressure regenerative heater nearest to condenser before heat supply system makeup water preparation plant, and regenerative heating of main condensate of turbine is started in low-pressure heater, second from turbine condenser.

EFFECT: increased economy and improved reliability of thermal power station owing to heating of primary water to technologically required temperatures by highly economic low-potential extraction of turbine steam at minimum capital layouts for reconstruction of circuit of thermal power station without fitting special primary water heater.

1 dwg

FIELD: heat power engineering.

SUBSTANCE: invention can be used for creating superposed gas-turbine plants to form steam-gas plants in operating thermal power station by equipping it with higher efficiency steam-turbine units. In proposed steam-turbine units regeneration system of steam turbine is partially bypassed with replacement of steam heating of water in this part of regenerative heat exchangers by gas heating. Steam-turbine unit is made in form of higher efficiency unit with bypass of steam turbine high pressure regeneration and part of heating boiler surfaces. Said bypass with included heating surfaces is arranged in convection gas conduit and is connected by its inlet part to part of high-pressure duct of said steam boiler of corresponding parameters. Gas heater of condensate of steam-turbine unit can be installed additionally in separate convection gas conduit in direction of gas flow after surfaces bypassing high pressure regeneration.

EFFECT: simplified design and control of plant, reduced overall dimensions and weight of heating surfaces of separate convection gas conduit at increased power rating of steam-turbine plants.

2 cl, 1 dwg

FIELD: power engineering.

SUBSTANCE: proposed thermal power station has fuel combustion set, tank with fuel, pipelines to feed fuel into furnace chamber, cocks, injectors, furnace chamber, steam turbine and reservoir with droppings connected by pipeline through cock with pipeline delivering fuel into furnace chamber.

EFFECT: improved efficiency of operation of thermal power station.

1 dwg

FIELD: power engineering and refrigerating facilities.

SUBSTANCE: according to proposed method, part of water cooled in tower is cooled in evaporator of absorption lithium bromide refrigerating machine and it is then mixed with main water flow from tower to condenser of power-generating unit. Mechanical draft tower is used for cooling condenser and absorber of refrigerating machine.

EFFECT: reduced temperature in turbine condenser contributing to generation of additional electric energy in interheating periods.

1 dwg

FIELD: power engineering.

SUBSTANCE: in proposed thermal power station containing steam generator, steam turbine, electric generator, and condenser, well tubes are arranged in vertical plane in lower layers of Earth's crust and are made to release thermal energy from lower layers of Earth's crust and receive renewable thermal energy. Tubes of well are installed under sea or ocean bottom in deep water chutes or cracks of Earth's crust or cavities on sea bottom or land. Well tubes can be arranged on sea bottom or land in parallel rows or in form of rectangular rings or spirals, shuttle, stars or radially. Tubes are connected in pairs at angle. Tubes connected to each other form together with pumps, turbine, condenser and deaerator, a closed system. Pump, turbine, generator, vacuum pump are installed on platform under bell housing. Platform is rigidly and hermetically connected with belt housing. Outer surfaces of turbine and condenser are provided with thermal elements of thermoelectric generator. Condenser is combined with platform, being made in form of vertical and horizontal communicating tubes connected with vacuum pump and vacuum regulator. Deaerator is provided with liquid level regulator.

EFFECT: reduced cost and consumption of materials at production of cheap renewable fuel, conversion of heat into electric energy.

8 dwg

FIELD: thermal engineering; thermal power stations.

SUBSTANCE: proposed operating process of thermal power station is as follows. Boiler-generated steam is conveyed to turbine wherefrom it is supplied to condenser for condensing it; full-flow condensate is delivered by means of condensate pump to low-pressure regenerative heaters and then to high-pressure deaerator; makeup water is deaerated in atmospheric-pressure deaerator and conveyed to full-flow condensate path, vented steam being discharged from atmospheric-pressure deaerator into atmosphere. Flowrate of vented steam discharged from atmospheric-pressure deaerator is regulated with respect to desired content of oxygen dissolved in mixed flow of makeup water and full-flow condensate beyond vacuum system of turbine unit, for instance downstream of low-pressure heater second along full-flow-condensate path.

EFFECT: enhanced economic efficiency and operating reliability of thermal power station.

1 cl, 1 dwg

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