Hydro-electric ejection power plant

FIELD: power industry.

SUBSTANCE: transferred medium, air inlet is made in the form of knee pipe, vertical part of which is rigidly attached in ice and faces air, while horizontal part with a diffuser is located under ice along water flow. Air intake with ventilator and generator plant inside is tightly attached to the loose end of vertical part of knee pipe.

EFFECT: simple hydro-electric plant applicable for electric power generation from hydraulic energy of river flow under ice.

2 cl, 1 dwg

 

The invention relates to hydropower, in particular to the structures of devices to generate electricity using the energy of the hydraulic flow of the river covered with ice.

Known installation to use the energy of water flow "Tunguska", containing a moored floating body and impeller, kinematically associated with generators /1/.

The disadvantage of this setup is that it is not adapted for use in the winter when the river is covered with ice.

The closest technical solution, selected as a prototype, is the jet pump, made in the form of the jet, which is intended for the aspiration of fluid. It contains the external flow, the supply fluid and the diffuser /2/.

A disadvantage of the known device is that it is poorly adapted for use as an installation to generate electricity using the energy of the hydraulic flow of the river.

The objective of the invention is to provide a simple hydropower plant with the possibility of its use for electricity generation by the energy of the hydraulic flow of the river covered with ice.

The invention consists in the following. External flow generated in the flow of river water under its ice pok is new. A supply of fluid, air, made in the form of a knee-shaped pipe, the vertical part of which is rigidly fixed in ice and communicated with the atmosphere, and the horizontal portion is placed under the ice in the direction of water flow. The cone is made in the form of a cylindrical tube of a diameter greater than the diameter of a knee-shaped pipe, and hermetically connected by means of a cone with the horizontal part of the knee-shaped pipe. To the free end of the vertical part of the knee-shaped pipe is sealed air inlet, the cavity of which is placed the fan generator set. In addition, the unit is equipped with a support, the fifth and the retainer. Support made in the form of area, which is rigidly attached by means of the internal surfaces of the shelves to the vertical part of the knee-shaped pipe so that its edge is directed towards the flow of water. To the free end of a support rigidly attached heel in the form of a truncated cone, and to the center of the heel is attached rigidly to clamp in the form of a cylindrical rod with a pointed end. The length of the free end of the prop along with the height of the heel is more radius of the cone. Together, this allows you to create simple hydropower installation with the possibility of its use for electricity generation by the energy of the hydraulic flow of the river, dormancy is itoi ice.

The drawing shows the ejector hydropower plant, in particular given its schema in the form of a longitudinal slit. Installation is made on the basis of the jet pump ejector designed for suction of fluid. For this external flow generated in the flow of river water under its ice 3 (ice). A supply of fluid, air, made in the form of a knee-shaped pipe 2, the vertical part of which is rigidly fixed in ice 3 and communicated with the atmosphere, and the horizontal portion is placed under the ice 3 in the direction of water flow (shown by the solid arrow). The diffuser 1 is made in the form of a cylindrical tube of a diameter greater than the diameter of a knee-shaped pipe 2, and hermetically connected by means of a cone 10 with the horizontal part of the knee-shaped pipe 2. To the free end of the vertical part of the knee-shaped pipe 2 sealed air intake 4, the cavity of which is placed the fan generator set (not shown). In addition, the unit is equipped with a support 6, the fifth 7 and lock 8. When this bearing 6 is made in the form of isosceles area, which is rigidly attached by means of the internal surfaces of the shelves to the vertical part of the knee-shaped pipe 2 so that its edge is directed towards the flow of water. To a free end which supports rigidly attached heel in the form of a truncated cone, and to the center of the heel 6 is rigidly attached to the latch 8 in the form of a cylindrical rod with a pointed end. The length of the free end of the support 6 together with the height of the heel 7 more of the radius of the cone 1.

The principle of operation is the following. Under ice 3 water moves in the direction shown by the solid arrow (drawing). Carried by a stream of water the air flows from the atmosphere (shown by the dashed arrow) in the inlet 4 and causes the rotation of the fan to a generator (not shown), which generates an electrical current. The formation of air flow in a knee-shaped pipe 2 due to the negative pressure which is generated in the end portion of the diffuser 1 when exposed to water flow. The location of the support 6 with the edge towards the water flow does not reduce the efficiency of the installation, and the presence of the cone 1 to cone 10 increases its effectiveness.

Installation install in the flow of water in the following order. Cut a hole in the shape of a rectangle (not shown), which are placed with the long side perpendicular to the direction of water flow. The width of the rectangle corresponds to the diameter of the cone 1 and the length of the rectangle is determined based on the ability to get to the hole part of the installation side of the diffuser 1 together with the support 6, the fifth 7 and lock 8. After immersing the specified part of the installation in the water it p is varchives under the action of the flow diffuser 1 downstream of the river. The vertical part of the knee-shaped pipe 2 set vertically against the lower (downstream) edge of the hole, and lowered the setting all the way down the heel 7 ground 9 river. When the latch 8 is also included in the ground 9 and fixes the installation below. Since the length of the free end of the support 6 together with the height of the heel 7 more of the radius of the cone 1, then he does not touch the ground 9 river. After the installation is fixed at the top. To do this, set the wedge 4 between the upper edge of the hole and the vertical part of the knee-shaped pipe 2. After some time the water freezes, which improves the fixation of the installation. In the spring of the installation will be dismantled. To do this, again cut the hole, install, remove from water and set it in storage until the next autumn, when the river is again covered with ice.

Based on the proposed technical solutions it is possible to create a simple hydropower installation with the possibility of its use for electricity generation by the energy of the hydraulic flow of the river covered with ice.

SOURCES of INFORMATION

1.A. C. the USSR № 1624198, F03 17/06, 30.01.1991.

2. Polytechnical dictionary / editor-in-chief A. Y. mechanics. - 3rd ed., Rev. and supplementary): Great Russian encyclopedia, 2000. - S. 509, 510 prototype.

1. Ejector hydropower plant containing external sweat the spacecraft environment, a supply of fluid and a diffuser, wherein the external flow generated in the flow of river water under its ice, a supply of fluid, air, made in the form of a knee-shaped pipe, the vertical part of which is rigidly fixed in ice and communicated with the atmosphere, and the horizontal portion is placed under the ice in the direction of water flow, the diffuser is made in the form of a cylindrical tube of a diameter greater than the diameter of a knee-shaped pipe, and hermetically connected by means of a cone with the horizontal part of the knee-shaped pipe, while to the free end of the vertical part of the knee-shaped pipe is sealed air intake in the cavity of which is placed the fan generator set.

2. Installation according to claim 1, characterized in that it is equipped with a support, the fifth and the latch, when this bearing is made in the form of area, which is rigidly attached by means of the internal surfaces of the shelves to the vertical part of the knee-shaped pipe so that its edge is directed towards the flow of water to the free end of a support rigidly attached heel in the form of a truncated cone, and to the center of the heel is attached rigidly to clamp in the form of a cylindrical rod with a pointed end, the length of the free end of the prop along with the height of heel greater the radius of the cone.



 

Same patents:

FIELD: engines and pumps.

SUBSTANCE: injector-type pump 2 makes an integral part of system 1 to create ultrahigh vacuum. Said pump comprises, at least, one chamber 11 to allow passage for high-rate fluid flow F. Chamber 11 first fluid inlet 3 terminating at nozzle opening 3a and fluid outlet 5. Pump chamber second inlet 4 is communicated with ultrahigh vacuum chamber 10 to be evacuated. Gas is sucked off from said chamber 10 via second inlet 4 by fluid flow jet that discharges gas from pump chamber 11.

EFFECT: creation of high and ultrahigh vacuum.

13 cl, 2 dwg

FIELD: engines and pumps.

SUBSTANCE: plant comprises a slot filter with a cone-shaped protective element and a support with a relief channel with a check valve and with a seat for alternate installation of an ejecting hydrodynamic device or an ejecting geophysical device in it, comprising a cylindrical body 20 with a ledge 42 for installation in the support. In a body 20 there is a jet pump with a coaxial nozzle 21, a mixing chamber 22 and a diffuser 23, and there are channels 24, 25 for active medium supply into the nozzle 21 and pumped medium supply, a channel 26 of discharge and a through channel 27 with a sealing unit 28. A channel 27 is connected below the unit 28 to the channel 25. In the unit 28 there is an axial channel 43 to let through a logging cable 29 and an instrument 30. The channel 24 via the relief channel is communicated with the space that surrounds the tubing string (TS). The outlet of the diffuser 23 is communicated with the inner cavity of the TS. The hydrodynamic ejecting device comprises a cylindrical body with an independent pressure gauge installed underneath. In the body there is a jet pump with a nozzle and a mixing chamber with a diffuser, and there is a channel to supply medium pumped from the well and a longitudinal through channel with a check valve and a plug with a catcher head.

EFFECT: expansion of plant functional capabilities.

FIELD: machine building.

SUBSTANCE: method to lift liquid includes ejection of atmospheric air with a water jet leaking through a nozzle into a mixing chamber under action of hydrostatic pressure existing in a water reservoir, and separation of a water and air flow exiting a lifting pipe into liquid and gas phases with liquid phase supply into an accumulating reservoir 4. At the same time a water receiving nozzle with a water-lifting pipe 1 is given reciprocal motion. Downward movement is carried out under action of the nozzle and the lifting pipe 1 gravity, and upward movement - with the help of a lever 3 loaded with lifted water and/or muscular efforts of a human being. Loading of the lever 3 with raised water may be carried out by preliminary drainage of the raised water into an intermediate water collecting reservoir 4 until its required volume is accumulated, and then its displacement with the help of a siphon pipeline 8 into the second intermediate reservoir 5, suspended at the lever end 3.

EFFECT: method improvement, reduction of costs.

FIELD: machine building.

SUBSTANCE: gases of first, second, and finish steps of oil separation, stripping gases of glycol regeneration installation and torch gases can be utilised as low-potential gases. The procedure consists in ejection compression of low-potential gases of various composition and pressure with flows of high-pressure liquid from pumps of recirculation. Each flow and low-potential gas is supplied into independent ejectors. Further, the procedure consists in removal of heat from gas compression, in successive division of mixture into compressed gas, hydrocarbon fluid and water phase, in throttling, in separation, in heating gas, if necessary, and in supply of products of separation to a consumer. Also, minimal flow rate of high pressure liquid facilitating compression of gas to pressure not higher, than compressed gas of another composition, is set by means of one of pumps of recirculation. Maximal pressure of compressed gases is set by less pressure of compressed gas produced from the independent ejectors at maximal flow rate of low-potential gases.

EFFECT: reduced capital and energy expenditures for utilisation of low-potential gases.

FIELD: machine building.

SUBSTANCE: system consists of at least two parallel arranged ejectors. Additionally and parallel to ejectors there is installed a control valve of main for overflow of active fluid medium. The main of low pressure gas is connected to inputs of the ejectors; the main of high pressure fluid medium is connected to inputs of the ejectors and the control valve via a gate valve. Outputs of the ejectors are connected to an output main via the gate valves; the output of the said control valve is coupled with the output main in case of implementation of gaseous high pressure fluid medium, and with the main of high pressure fluid medium by means of the pump in case of implementation of fluid high pressure medium.

EFFECT: raised efficiency of system operation.

15 cl, 1 dwg

FIELD: oil and gas production.

SUBSTANCE: procedure for utilisation of low pressure gas in field consists in supply of low pressure oil gas from end separation unit ESU into ejector of "gas-liquid", whereat oil field drain water is used as working agent. Further, the procedure consists in compression of low-pressure oil gas in the said ejector and in production of water-gas mixture, in supply of produced water-gas mixture to a stage of purification of oil field drain water from oil, in separation of gas from oil field drain water and in utilisation of separated gas as a flotator, in supply of oil field drain water purified by flotation into a tank for further purification by the method of gravitation settling. Purified water is supplied to a cluster pump station to be pumped into a reservoir. Oil separated during flotation is supplied to the ESU. Separated gas as passive gas is directed to the ejector of "gas-gas" type, wherein high pressure gas is used as active gas. Passive gas is compressed to pressure sufficient for transporting it to a consumer together with high pressure gas.

EFFECT: reduced power expenditures and workload on separation stage of high pressure gas, increased efficiency of oil field drain water purification, utilisation of low pressure gas of separation and flotation stages.

4 tbl, 2 dwg

FIELD: engines and pumps.

SUBSTANCE: liner and inlet bowl, packer and ejector case, arranged sequentially from bottom to top, are downed in tubing (OWT), packer and inlet bowl being arranged above pay top bed. Said inlet bowl is arranged above the bed top of lower productive bed. Packer is removed, perforator is lowered on log cable in OWT and movable geophysical ejector arranged there above. Perforator is arranged in the zone of said bed, while geophysical ejector is arranged in said supporting case. Then on forcing fluid, e.g. oil in OWT pipe space, depression on the pay in parker tail is created to drain and perforate said bed. Reaction products pumped out from the pay, fluid feed into aforesaid aerodynamic ejector nozzle is abruptly cut off, log cable and perforator are withdrawn from the well. Acid solution is forced into said bed via OWT and supporting case, log instrument and geophysical ejector are lowered into said bed. Then log instrument is arranged in said liner and geophysical ejector is arranged in supporting case, and, on forcing fluid, e.g. oil, OWT space and into hydrodynamic ejector device nozzle, depression on the pay is created to drain products of reaction between acid solution with the bed from its well zone. Note here that logging instrument is used to register pressure under parker, well yield and physical properties of extracted fluid. Reaction products and bed fluid pumped out and geophysical ejector operating, geophysical parametres are registered from inlet bowl to bottom hole and, further on, from bottom hole to inlet bowl, in the conditions of inflow from said bed. Then operation of geophysical ejector is terminated to remove complex geophysical instrument from the well on the surface. Then hydrodynamic ejector with self-contained pressure gage is dropped down into OWT. Then hydrodynamic ejector device with self-contained pressure gage arranged there below is mounted in aforesaid supporting case, and, on forcing fluid in OWT hole clearance and into hydrodynamic ejector device nozzle, depression on the tested lower pay is created in parker tail. After draining till inflow stabilisation, fluid feed in hydrodynamic ejector nozzle is abruptly terminated. Note here that hydrodynamic ejector check valve arranged in pumped fluid feed channel cuts off automatically to allow registration of bed tail pressure recovery curve (PRC). After PRC registration cables are used to withdraw hydrodynamic ejector on the surface. Grouting mortar is forced via OWT and supporting case to arranged cement bridge in the zone of said bed. Packer is removed, OWT with supporting case is lifted to mount inlet bowl above upper productive bed roof. Now, packer is installed and above described sequence of job is performed to develop top productive beds.

EFFECT: expanded performances.

FIELD: engines and pumps.

SUBSTANCE: liner and inlet bowl, packer and ejector case, arranged sequentially from bottom to top, are downed in tubing (OWT) on flexible tubing (FT), FT packer being arranged above OWT packer and inlet bowl being arranged above pay top bed. FT packer is removed, acid solution is pumped in pay via FT and aforesaid casing. Then hydrodynamic ejector device with self-contained pressure gage arranged there below is mounted, via FT, in aforesaid housing, and, on forcing fluid, e.g. oil in annular space between FT outer surface and OWT inner surface and into hydrodynamic ejector device nozzle, depression on the pay is created to drain products of reaction between acid solution with the bed from its well zone. Reaction products pumped out from the pay, fluid feed into aforesaid aerodynamic ejector nozzle is abruptly cut off. Note here that hydrodynamic ejector check valve arranged in pumped fluid feed channel cuts off automatically to allow registration of bed tail pressure recovery curve (PRC). PRC registered, cables are used to move aforesaid ejector with self-contained pressure gage to the surface and log cable is used to lower via FT the complex logging geophysical instrument with geophysical ejector arranged there above on said log cable into the well. In lowering, said complex geophysical instrument is used to register background geophysical parametres, e.g. pressure and temperature along wellbore from FT bowl to well bottom hole. Note here that said geophysical ejector is mounted in supporting case. Then on forcing fluid, e.g. oil in annular space between FT outer surface and OWT inner surface and into hydrodynamic ejector device nozzle, depression on the pay is created to drain products of reaction between acid solution with the bed to fluid flow stabilisation. Now, with geophysical ejector operating, aforesaid complex geophysical instrument is lifted by log cable from bottom hole to FT inlet bowl to register well geophysical parametres. Then operation of geophysical ejector is terminated to remove complex geophysical instrument from the well and hydrodynamic ejector with self-contained pressure gage is dropped down into FT and mounted in supporting case. Then hydrodynamic ejector device with self-contained pressure gage arranged there below is mounted, via FT, in aforesaid housing, and, on forcing fluid, e.g. oil in annular space between FT outer surface and OWT inner surface and into hydrodynamic ejector device nozzle, depression on the pay is created to discharge oil via pumped fluid feed channel, gap between nozzle edge and mixing chamber edge, mixing chamber and hydrodynamic ejector diffuser into FT and further on and with natural gas, to come onto the surface by means of ejector gas lift. Formation fluid of extracted and, after drop in production rate, natural gas is replaced by oil or condensate, to abruptly stop feeding working fluid into hydrodynamic ejector nozzle and to register PRC in parker tail. Then cables are used to withdraw hydrodynamic ejector with self-contained pressure gage onto the surface and log cable is used to lower complex logging instrument with geophysical ejector arranged there above to analyse well section from inlet bowl to bottom hole with operating geophysical ejector to and register well stream profiles and define sources of flooding. Then fluid working fluid is replaced with natural gas, natural gas feed into geophysical ejector nozzle is terminated, complex logging instrument with geophysical ejector is withdrawn for well productivity recovery measures to be taken via FT and aforesaid supporting case: water-shut-off jobs, bed reperforating in depression conditions with the help of miniature perforators down on log cable or bed acid treatment, followed by above described hydrodynamic and geophysical analyses. Now, well operation is resumed by means of ejection gas-lift.

EFFECT: expanded performances.

FIELD: oil and gas production.

SUBSTANCE: system consists of line for supply of product from wells with two pipe branches for supply of gas saturated flow into jet pump coupled with separating installation and power block via system of pipelines. The pipe branches ensure division of gas-liquid mixture entering the jet pump from wells into a passive gas-saturated flow and passive liquid-gas medium. Also the passive gas-saturated flow enters an internal stepped channel of a hollow cylinder tube installed coaxially inside a nozzle of the jet pump and forming a circular nozzle of alternate cross section with its external surface and with internal surface of the nozzle along its whole length. The active flow of circulating water-oil mixture is supplied into the circular nozzle of alternate cross section from the separating installation by means of an electro-centrifugal pump via the internal channel of the tubing of the power block.

EFFECT: raised efficiency of installation.

2 dwg

FIELD: machine building.

SUBSTANCE: device consists of vessel with liquid odorant coupled with gas line via odorant metering device and main, and via second main connected with upper point of vessel. Further, the vessel consists of high pressure gas line and ejector, input of which is coupled with the gal line of high pressure via the third main with normally closed driven electric valve. Output of the ejector is communicated with the gas line through the fourth main. The vessel also consists of a vessel-storage filled with liquid odorant. The device is equipped with an auxiliary vessel, a lower point of which is connected with the lower point of the vessel via the fifth main and normally closed driven electric valve. An upper point of the auxiliary vessel is connected with a vacuum main of the ejector. Notably, the lower point of the vessel-storage is connected with the lower point of the auxiliary vessel through the sixth main and normally closed driven electric valve and is positioned above the upper point of the auxiliary vessel, while its lower point is located above the upper point of the vessel.

EFFECT: charging vessel with liquid without metering device shut-off and without break of continuous process of odorising.

3 cl, 1 dwg

FIELD: oil-and-gas industry.

SUBSTANCE: device to inject low-pressure gas in pressurised fluid flow is composed of confuser-diffuser Venturi-profile nozzle with injection slit in contraction zone. It comprises confuser, diffuser, gas feed inlet pipe arranged in said contraction zone and communicated with injection slit to create mixing zone in fluid flow. Said injection slit is composed by confuser nozzle outer conical surface and diffuser inlet inner curved surface. Note here that diffuser inlet minimum diameter makes 1.0-1.15 of confuser nozzle diameter.

EFFECT: higher pressure recovery factor at maximum gas flow rate.

2 dwg

FIELD: fire-prevention facilities.

SUBSTANCE: invention relates to means of cutting fluids, solutions. In the vortex foam generator, comprising a housing with the vortex chamber and a nozzle, the housing is made in the form of a fitting with a pipe for fluid supply and an air supply duct, and a cylindrical coaxial tube rigidly connected thereto, and coaxially to the housing, in its lower part, a nozzle 5 is connected which is made in the form of a first-stage centrifugal swirler in the form of a cylindrical cavity with at least three tangential inlets in the form of cylindrical openings, and over the first-stage centrifugal swirler a vortex conical chamber is mounted with a screw thread on its inner surface, which is the second stage of the fluid swirler, and the centrifugal swirler through the cavity, which is connected to the central orifice, is connected to the vortex conical chamber in its lower part, and in the upper part the conical chamber has at least three tangential inlets in the form of cylindrical openings tangentially located to its inner surface, and the supply of the working body to the tangential inlets is carried out by at least three cylindrical openings connected with tangential inlets at right angles, and which axes are parallel to the axis of the nozzle, and these openings are connected to the cylindrical chamber located above the cover of the conical chamber, perpendicular to its axis, and over the cylindrical chamber there is a cowling made in the form of a truncated cone with a central opening, connected simultaneously to the cylindrical chamber and the housing opening for supplying fluid from the main pipe, and between the lateral conical surface of the cowling and the inner conical surface of the housing in the place of its connection with the tube there is a gap in the form of a conical ring, and the centrifugal swirler is mounted in the housing to form a circular cylindrical chamber for supplying fluid to the tangential inlets of the centrifugal swirler, which cylindrical cavity is connected to the outlet conical chamber of the nozzle, and on the nozzle housing, coaxially to the conical chamber, a divider is fixed, made in the form of a cylindrical perforated shell with a perforated bottom mounted opposite the conical chamber, and on the nozzle housing, coaxial to the conical chamber, a divider is fixed, made in the form of a diffuser with a pack of perforated plates mounted in front of the conical chamber.

EFFECT: increased efficiency of fire fighting by increasing the spray cone and finely divided atomised fluid, as well as formation of high-expansion air filled foam.

1 dwg

FIELD: fire-prevention facilities.

SUBSTANCE: invention relates to fire-fighting equipment, namely, to structures of foam generators, and can be used in subsurface fire suppression systems in reservoirs with highly inflammable liquids (HIL). In the foam generator comprising a cylindrical housing with a nozzle for supplying water foamer solution, and a fitting for air supply, the housing is made in the form of a sleeve, inside of which and coaxially to it the fitting for air supply is located, and the inner surface of the sleeve and the outer surface of the fitting form an annular channel for supply the foamer solution, and the cylindrical tube with external thread is rigidly coaxially connected to the sleeve, while the nozzle through the tube with internal thread is connected coaxially to the housing, which is made in the form of a centrifugal flow swirler of the solution in the form of a dead-end cylindrical insert with at least three tangential inlets in the form of cylindrical holes, and the tube is a part of the nozzle and is mounted coaxially and in alignment with respect to centrifugal swirler, and in the end surface of the centrifugal swirler the series-connected axial conical and cylindrical orifices coaxial with each other and the housing are made, which are connected to the fitting to supply the foamer solution, and the centrifugal swirler is mounted in the cylindrical chamber of the housing to form an annular cylindrical chamber to supply the foamer solution to the tangential inlets of the centrifugal swirler and is connected with three chambers mounted sequentially and coaxially to it with conical, cylindrical diffuser outlet chamber, and the chambers are mounted so that the output of one chamber is the input for another, and in the coaxial diffuser output chamber the divider is fixed, which is made in the form of a cylindrical perforated shell with a perforated bottom set in front of the diffuser outlet chamber.

EFFECT: increased efficiency of foam generator that produces high-expansion foam.

1 dwg

FIELD: machine building.

SUBSTANCE: device is meant for joint transfer of liquid and gases which is required in various technical fields. Liquid-gas jet device contains nozzle cluster with at least two nozzles, primary and secondary mixing chambers and two inlet chambers, one is for liquid and the other is for gas, the secondary mixing chamber is connected to diffuser.

EFFECT: obtaining preset aeration with high accuracy.

10 cl, 1 dwg

FIELD: engines and pumps.

SUBSTANCE: gas pressure increasing method consists in supply to the gas flow moving through the channel in the gas flow direction of the fluid in quantity of more than 10 percents of gas mass flow. Fluid is under pressure of more than 5 MPa. At that, gas temperature is more than that at which full evaporation of fluid takes place. Kerosene, water or cryogenic fluid can be used as the above mentioned fluid. The above method allows increasing the pressure of gas (mixture) at reduction of its temperature.

EFFECT: method can be used in cooling systems of components of gas turbine engines.

FIELD: engines and pumps.

SUBSTANCE: injector-type pump 2 makes an integral part of system 1 to create ultrahigh vacuum. Said pump comprises, at least, one chamber 11 to allow passage for high-rate fluid flow F. Chamber 11 first fluid inlet 3 terminating at nozzle opening 3a and fluid outlet 5. Pump chamber second inlet 4 is communicated with ultrahigh vacuum chamber 10 to be evacuated. Gas is sucked off from said chamber 10 via second inlet 4 by fluid flow jet that discharges gas from pump chamber 11.

EFFECT: creation of high and ultrahigh vacuum.

13 cl, 2 dwg

FIELD: machine building.

SUBSTANCE: air is sprayed via connection pipe from atmosphere to receiving chamber of fluid jet pump together with sprayed solution through needle inlet valve controlling smooth air flow for the purpose of its aeration.

EFFECT: obtaining aerated solutions of sprayed liquids.

1 dwg

Jet pump // 2439381

FIELD: engines and pumps.

SUBSTANCE: proposed pump comprises distributed chamber accommodating active nozzle provided with multiple orifice restricting tip, accelerating nozzle with taper cavitator, and mixing chamber. Note jeer that active nozzle is provided with multiple orifice restricting tip made up of D-diameter diaphragm with thickness E<(=)0.1 D. Besides, acceleration nozzle represents Venturi-type taper nozzle, delineated by radius r=d, where d is neck diameter. Neck inlet section has cylindrical inlet with length L=d, while diffuser angle half varies from 3° to 4°, and features relation: d/D1<(=)0.25.

EFFECT: possibility to reach critical speeds.

3 cl, 3 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to fluid and solution sprayers. Foam generator comprises housing with swirling chamber and nozzle. Housing is made up of union with fluid feed channel and air feed channel, and cylindrical coaxial sleeve. Nozzle making radial-flow first-stage swirler with three tangential inlet cylindrical bores is jointed to housing bottom. Vortex taper chamber with screw grooves on its inner surface is arranged above said swirler, chamber surface making second stage of fluid swirler. Note here that radial-flow swirler is communicated, via chamber communicated with throttle, with taper vortex chamber bottom. Note also that taper chamber top section has at least three tangential; cylindrical inlet bores arranged tangentially to its inner surface. Fluid is fed to said inlets via three cylindrical bores communicated with tangential inlets at right angle. Axes of said bores are parallel to nozzle axis. Besides said bores communicate with cylindrical chamber arranged above aforesaid cover perpendicular to its axis. Besides, fair representing truncated cone with central opening is arranged above cylindrical chamber to communicate with both cylindrical chamber and housing inlet to feed fluid from main line. Taper-ring-like clearance is arranged between side taper surface of fair and housing inner taper surface. Note here that radial-flow swirler is fitted in housing to form annular cylindrical chamber to feed fluid to tangential inlets of radial-flow swirler with its cylindrical chamber communicated with nozzle outlet taper chamber. Spreader made up of perforated cylindrical shell with perforated bottom is arranged on nozzle case, opposite taper chamber.

EFFECT: higher efficiency of fire extinguishing.

1 dwg.

FIELD: process engineering.

SUBSTANCE: proposed generator is intended for fire extinguishing in tanks with inflammable fluids. It comprises cylindrical housing with foam generating solution and air feed union. Said housing is made up of sleeve accommodating said air feed union. Note here that union inner and outer surfaces form solution feed annular channel while cylindrical shell is rigidly jointed with housing and aligned therewith. Note also that nozzle made up of radial-flow solution swirler is jointed with said housing and aligned therewith. Said nozzle has at least three tangential cylindrical feed holes. Besides, said shell makes a part of said nozzle and is arranged coaxially with said swirler. Swirler face surface has taper and cylindrical throttle orifices. Note that swirler is fitted inside housing cylindrical chamber and communicates with three cylindrical, taper and diffuser chambers. Note that chambers are arranged sequentially and aligned therewith to make outlet of one chamber an inlet of another chamber.

EFFECT: higher efficiency.

2 dwg

FIELD: electricity.

SUBSTANCE: submersible microhydro power plant for electric energy generation includes hydraulic turbine with vertical rotation axis connected to electric generator, also it includes water flow formers and device protecting against floating objects. Lower end of runner shaft 3 is connected directly to generator shaft 17 by means of splined joint. Thrust bearing of runner is rigidly fixed in upper cover of electric generator housing 15 so that it is simultaneously a pilot bearing for electric generator. Electric generator is end-type, water-filled and is located under hydraulic turbine. Hydraulic turbine housing 1 and electric generator housing 15 form single structure monoblock.

EFFECT: reducing dimensions and weight, generating cheaper electric energy due to absence of investments to plants building, simplifying structure and erection works method, reducing maintenance costs.

2 dwg

Up!