CN107355629A - A kind of electromagnetic damping formula surge-chamber - Google Patents

A kind of electromagnetic damping formula surge-chamber Download PDF

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Publication number
CN107355629A
CN107355629A CN201710555706.8A CN201710555706A CN107355629A CN 107355629 A CN107355629 A CN 107355629A CN 201710555706 A CN201710555706 A CN 201710555706A CN 107355629 A CN107355629 A CN 107355629A
Authority
CN
China
Prior art keywords
chamber
riser
spring
room
permanent magnet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710555706.8A
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Chinese (zh)
Inventor
陶睿
南天笑
张兴杰
岳峻鹏
孙昭敏
张求实
李水艳
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Hohai University HHU
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Hohai University HHU
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Filing date
Publication date
Application filed by Hohai University HHU filed Critical Hohai University HHU
Priority to CN201710555706.8A priority Critical patent/CN107355629A/en
Publication of CN107355629A publication Critical patent/CN107355629A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/04Devices damping pulsations or vibrations in fluids
    • F16L55/045Devices damping pulsations or vibrations in fluids specially adapted to prevent or minimise the effects of water hammer
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/04Devices damping pulsations or vibrations in fluids
    • F16L55/045Devices damping pulsations or vibrations in fluids specially adapted to prevent or minimise the effects of water hammer
    • F16L55/05Buffers therefor

Abstract

The present invention relates to a kind of electromagnetic damping formula surge-chamber, belong to technical field of hydroelectric generation.Include pressure pipeline, Memory-Gate, homophony pressure chamber, spring damping device;Homophony pressure chamber includes lower room, riser and riser, and riser, which is fixedly installed on homophony pressure chamber bottom wall, is divided into homophony pressure chamber positioned at the lower room in left side and the riser positioned at right side, and riser upper end opens up spout hole 8 and connects riser;Pressure pipeline is located at below homophony pressure chamber, and the lower room of impedance hole connection is opened up on pressure pipeline, a liter hole connection riser is opened up on pressure pipeline, Memory-Gate is fixedly installed at impedance hole, and spring damping device is fixedly installed on above lower room.The present invention can effectively solve existing equipment manufacture difficulty and poor controllability, surge-chamber water-level fluctuation amplitude is big, decay is slower, it is poor to easily cause water soot blower reflecting effect, the problem of influenceing the unit normal work and use life-span, surge-chamber height can be effectively reduced simultaneously, reduce the civil engineering part investment of engineering.

Description

A kind of electromagnetic damping formula surge-chamber
Technical field
The present invention relates to a kind of electromagnetic damping formula surge-chamber, belong to technical field of hydroelectric generation.
Background technology
With the non-renewable energy resources increasingly depleted such as development, coal, oil of science and technology, more people start sight to turn Exploitation to regenerative resource, such as water-energy generating electricity;Surge-chamber reduces pipeline water hammer pressure as big-and-middle-sized high head hydroelectric power plant Important component, undoubtedly wherein indispensable one, but traditional surge-chamber water-level fluctuation amplitude is big, slower, shadow of decaying Ring the efficiency to generate electricity;In addition, existing surge-chamber is generally uncontrollable system, propagation of the water soot blower in pressure pipeline and surge-chamber And be reflected in the direction for tending not to tend to be advantageous to system safety according to design idea under emergency situations and develop, to the fortune of unit Row safety causes huge hidden danger.
The content of the invention
The technical problems to be solved by the invention are the defects of overcoming prior art, there is provided a kind of electromagnetic damping formula pressure regulation Room, solve existing equipment manufacture difficulty and poor controllability, surge-chamber water-level fluctuation amplitude is big, decays the problem of slower.
To reach above-mentioned purpose, the present invention provides a kind of electromagnetic damping formula surge-chamber, including pressure pipeline, Memory-Gate, master Surge-chamber, spring damping device;The homophony pressure chamber includes lower room, riser and riser, and the riser is fixedly installed on the master The homophony pressure chamber is divided on surge-chamber bottom wall and opened positioned at the lower room in left side and the riser positioned at right side, the riser upper end If spout hole connects the riser;The pressure pipeline is located at below the homophony pressure chamber, and impedance is opened up on the pressure pipeline Hole connects the lower room, and liter hole is opened up on the pressure pipeline and connects the riser, the Memory-Gate is fixedly installed on the resistance At anti-hole, the spring damping device is fixedly installed on above the lower room.
Preferentially, the spring damping device includes lower shoe, connecting rod, upper plate, exhausted magnet frame body, spring, outside cylinder forever Magnet, interior cylinder permanent magnet, variable resistor and electric supply installation;The magnet frame body absolutely is the cylinder of inner hollow, the exhausted magnetic A manhole is opened up on framework bottom wall, the outside cylinder permanent magnet top is fixedly connected with the roof absolutely in magnet frame body, described Interior cylinder permanent magnet top is fixedly connected with roof in the exhausted magnet frame body, and the interior cylinder permanent magnet is located at the outside cylinder permanent magnetism In body, the spring top is fixedly connected with the roof absolutely in magnet frame body, the spring wrap on the interior cylinder permanent magnet, The spring, the interior cylinder permanent magnet, the outside cylinder permanent magnet and the magnet frame body absolutely are coaxial, the interior cylinder permanent magnetism Body, the outside cylinder permanent magnet are highly less than magnet frame body internal height, the lower spring end absolutely and are fixedly connected with the upper bottom Plate, the upper plate seal side wall in the exhausted magnet frame body that is slidably connected, and the upper plate exterior bottom wall is fixedly connected with the connecting rod Upper end, the connecting rod lower end are fixedly connected in the middle part of the lower shoe;The variable resistor, the electric supply installation and the spring string Connection.
Preferentially, the Memory-Gate includes rotor plate, gate flap hinge and connecting lever;The connecting lever right-hand member is cut with scissors solid by the gate flap Surely the lower indoor bottom wall is connected, the connecting lever left end is fixedly connected with the rotor plate, and the connecting lever is flexible, the rotation Plate is located in the impedance hole or impedance hole top.
Preferentially, including labyrinth sealing water barrier device, the labyrinth sealing water barrier device are arranged and are fixedly connected on In the upper plate side wall.
Preferentially, protrusion forms isosceles trapezoid accommodating chamber laterally in the middle part of the lower room.
Preferentially, including controller and displacement detector, the displacement detector are fixedly installed on the upper plate upper table On face, the controller electrically connects the displacement detector, and the displacement detector electrically connects the electric supply installation.
Preferentially, the displacement detector is laser displacement sensor, ultrasonic distance inductor or infrared Distance-sensing Device.
Preferentially, the spring is steel, and the electric supply installation is dc source.
Preferentially, the connecting rod lower end is vertically fixedly connected in the middle part of the lower shoe.
Preferentially, the riser is the polished processing of inner lining concrete or directly uses plate-steel liner.
The beneficial effect that the present invention is reached:
(1)The present invention can effectively solve existing equipment manufacture difficulty and poor controllability, and surge-chamber water-level fluctuation amplitude is big, Decay is slower, and it is poor to easily cause water soot blower reflecting effect, the problem of influenceing the unit normal work and use life-span, while can be effective Reduce surge-chamber height, reduce the civil engineering part investment of engineering;
(2)The present invention is provided with rotor plate, can be opened up in the case where water hammer pressure is excessive, reduce the resistance of fluctuation of water table Power, so as to improve the efficiency of the reflection water soot blower of surge-chamber, avoid the generation of extreme operating condition;
(3)Exhausted magnet frame body is provided with the present invention, so as to effectively prevent shadow of the magnetic field for other electronic components of power station Ring, ensure that the stationarity and stability of unit operation;
(4)Have in the present invention it is rational in infrastructure it is simple, production cost is low, easy for installation, multiple functional.
Brief description of the drawings
Fig. 1 is the structure chart of the present invention.
Mark meaning in accompanying drawing, 1- pressure pipelines;2- impedance holes;3- rotor plates;4- gate flaves are cut with scissors;5- connecting levers;Room under 6-;7- Riser;8- spout holes;9- displacement monitors;10- lower shoes;11- connecting rods;12- upper plates;The exhausted magnet frame bodies of 13-;14- springs; 15- outside cylinder permanent magnets;Cylinder permanent magnet in 16-;17- variable resistors;18- dc sources;19- risers;20- rises hole.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings.Following examples are only used for clearly illustrating the present invention Technical scheme, and can not be limited the scope of the invention with this.
A kind of electromagnetic damping formula surge-chamber, including pressure pipeline 1, Memory-Gate, homophony pressure chamber, spring damping device;It is described Homophony pressure chamber includes lower room 6, riser 7 and riser 19, and the riser 19 is fixedly installed on the homophony pressure chamber bottom wall by described in Homophony pressure chamber is divided into be opened up spout hole 8 and connects positioned at the lower room 6 in left side and the riser 7 positioned at right side, the upper end of riser 19 The riser 7;The pressure pipeline 1 is located at below the homophony pressure chamber, and impedance hole 2 is opened up on the pressure pipeline 1 and connects institute Lower room 6 is stated, liter hole 20 is opened up on the pressure pipeline 1 and connects the riser 7, the Memory-Gate is fixedly installed on the impedance hole At 2, the spring damping device is fixedly installed on the top of lower room 6.
Further, the spring damping device includes lower shoe 10, connecting rod 11, upper plate 12, exhausted magnet frame body 13, spring 14th, outside cylinder permanent magnet 15, interior cylinder permanent magnet 16, variable resistor 17 and electric supply installation;The magnet frame body 13 absolutely is in inside Empty cylinder, a manhole is opened up on the bottom wall of magnet frame body 13 absolutely, the top of outside cylinder permanent magnet 15 is fixedly connected The inner roof wall of magnet frame body 13 absolutely, the interior top of cylinder permanent magnet 16 is fixedly connected with the inner roof wall of magnet frame body 13 absolutely, described Interior cylinder permanent magnet 16 is located in the outside cylinder permanent magnet 15, and the top of spring 14 is fixedly connected in the exhausted magnet frame body 13 Roof, the spring 14 are wrapped on the interior cylinder permanent magnet 16, the spring 14, the interior cylinder permanent magnet 16, described Outside cylinder permanent magnet 15 and the magnet frame body 13 absolutely are coaxial, the interior cylinder permanent magnet 16, the height of the outside cylinder permanent magnet 15 Less than the internal height of magnet frame body 13 absolutely, the lower end of spring 14 is fixedly connected with the upper plate 12, and the upper plate 12 is close The madial wall of magnet frame body 13 absolutely that is slidably connected is sealed, the exterior bottom wall of upper plate 12 is fixedly connected with the upper end of connecting rod 11, described The lower end of connecting rod 11 is fixedly connected with the middle part of lower shoe 10;The variable resistor 17, the electric supply installation and the spring 14 are gone here and there Connection.
Further, the Memory-Gate includes rotor plate 3, gate flap hinge 4 and connecting lever 5;The right-hand member of connecting lever 5 passes through the door Leaf hinge 4 is fixedly connected with the inner bottom wall of lower room 6, and the left end of connecting lever 5 is fixedly connected with the rotor plate 3, and the connecting lever 5 has bullet Property, the rotor plate 3 is located in the impedance hole 2 or the top of the impedance hole 2, and the gate flap hinge 4 is the axle that rotor plate 3 rotates The heart.
Further, including labyrinth sealing water barrier device, the labyrinth sealing water barrier device are arranged and are fixedly connected In the side wall of upper plate 12.
Further, protrusion forms isosceles trapezoid accommodating chamber laterally at the middle part of lower room 6.
Further, including controller and displacement detector 9, the displacement detector 9 are fixedly installed on the upper plate On 12 upper surfaces, the controller electrically connects the displacement detector 9, and the displacement detector 9 electrically connects the electric supply installation.
Further, the displacement detector 9 is that laser displacement sensor, ultrasonic distance inductor or infrared distance pass Sensor.
Further, the spring 14 is steel, and the electric supply installation is dc source 18.
Further, the lower end of connecting rod 11 is vertically fixedly connected with the middle part of lower shoe 10.
Further, the riser is the polished processing of inner lining concrete or directly uses plate-steel liner.
The present apparatus course of work:
The displacement monitors 9 are used for the change in displacement for monitoring steel spring 14;The interior cylinder permanent magnet 16, outside cylinder permanent magnetism Body 15 is that steel spring 14 provides radial magnetic field;The dc source 18 connects steel spring 14 and forms loop, while connects thereon Connect variable resistor 17.
The present invention use state be:When the valve of the end of pressure pipeline 1(It is not shown)Close suddenly or the hydraulic turbine is quoted Flow is reduced, and water soot blower can be propagated upstream caused by system;After reaching homophony pressure chamber, riser 7 is because cross-sectional area is small, its water Position meeting rapid increase more than the water body overflow of spout hole 8 up to entering homophony pressure chamber, its purpose is to reduce the amplitude of water soot blower, Accelerate its rate of decay;Water hammer pressure is excessive under emergency case, and more than the design bearing value of connecting lever 5, rotor plate 3 is cut with scissors around gate flap 4 dig upwards, and the area of impedance hole 2 becomes big, and the resistance that water body is upwardly into homophony pressure chamber diminishes, will to the reflecting effect of water soot blower It is substantially improved;As normally got rid of under lotus situation, water body enters the lower room 6 of homophony pressure chamber by impedance hole 2 is directly over;When water hammer pressure Homophony pressure chamber water level caused by power rises to the elevation of lower shoe 10, and spring damping device is started working, and steel spring 14 is to water body Acting, suppress the trend that water body continues up;If the water hammer pressure met is excessive, more than the steel bullet of the control of displacement detector 9 Spring normally allows displacement, and for small water conservancy hydroelectric project, general control is in 1 ~ 5m.Dc source 18 works, and circuit communication can Change resistance 17 can adjust the size of current in circuit, steel spring 14 and outside cylinder permanent magnet 15 and the interior cylinder permanent magnetism of energization Radial magnetic field caused by body 16 is collectively forming electromagnetic damping system, will greatly enhance damping;When the hydraulic turbine increases load, Storage water body will flow into pressure pipeline 1 through impedance hole 2 in the lower room 6 of homophony pressure chamber, play a part of reflecting water soot blower.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art For member, without departing from the technical principles of the invention, some improvement and deformation can also be made, these are improved and deformation Also it should be regarded as protection scope of the present invention.

Claims (10)

1. a kind of electromagnetic damping formula surge-chamber, it is characterised in that including pressure pipeline(1), Memory-Gate, homophony pressure chamber, spring resistance Buddhist nun's device;The homophony pressure chamber includes lower room(6), riser(7)And riser(19), the riser(19)It is fixedly installed on the master The homophony pressure chamber is divided into positioned at the lower room in left side on surge-chamber bottom wall(6)With the riser positioned at right side(7), the riser (19)Upper end opens up spout hole(8)Connect the riser(7);The pressure pipeline(1)It is described below the homophony pressure chamber Pressure pipeline(1)On open up impedance hole(2)Connect the lower room(6), the pressure pipeline(1)On open up a liter hole(20)Connection institute State riser(7), the Memory-Gate is fixedly installed on the impedance hole(2)Place, the spring damping device are fixedly installed on described Lower room(6)Top.
2. a kind of electromagnetic damping formula surge-chamber according to claim 1, it is characterised in that the spring damping device includes Lower shoe(10), connecting rod(11), upper plate(12), exhausted magnet frame body(13), spring(14), outside cylinder permanent magnet(15), interior cylinder Permanent magnet(16), variable resistor(17)And electric supply installation;The magnet frame body absolutely(13)For the cylinder of inner hollow, the exhausted magnetic Framework(13)A manhole, the outside cylinder permanent magnet are opened up on bottom wall(15)Top is fixedly connected with the magnet frame body absolutely(13) Inner roof wall, the interior cylinder permanent magnet(16)Top is fixedly connected with the magnet frame body absolutely(13)Inner roof wall, the interior cylinder permanent magnetism Body(16)Positioned at the outside cylinder permanent magnet(15)In, the spring(14)Top is fixedly connected with the magnet frame body absolutely(13)Interior top Wall, the spring(14)It is wrapped in the interior cylinder permanent magnet(16)On, the spring(14), the interior cylinder permanent magnet (16), the outside cylinder permanent magnet(15)With the magnet frame body absolutely(13)Coaxially, the interior cylinder permanent magnet(16), it is described cylindrical Post permanent magnet(15)Highly it is less than the magnet frame body absolutely(13)Internal height, the spring(14)Lower end is fixedly connected with the upper bottom Plate(12), the upper plate(12)Seal the magnet frame body absolutely that is slidably connected(13)Madial wall, the upper plate(12)Exterior bottom wall It is fixedly connected with the connecting rod(11)Upper end, the connecting rod(11)Lower end is fixedly connected with the lower shoe(10)Middle part;It is described variable Resistance(17), the electric supply installation and the spring(14)Series connection.
3. a kind of electromagnetic damping formula surge-chamber according to claim 1, it is characterised in that the Memory-Gate includes rotor plate (3), gate flap hinge(4)And connecting lever(5);The connecting lever(5)Right-hand member is cut with scissors by the gate flap(4)It is fixedly connected with the lower room(6)It is interior Bottom wall, the connecting lever(5)Left end is fixedly connected with the rotor plate(3), the connecting lever(5)It is flexible, the rotor plate(3)Position In the impedance hole(2)In or the impedance hole(2)Top.
4. a kind of electromagnetic damping formula surge-chamber according to claim 2, it is characterised in that filled including labyrinth sealing water proof Put, the labyrinth sealing water barrier device is arranged and is fixedly connected on the upper plate(12)In side wall.
A kind of 5. electromagnetic damping formula surge-chamber according to claim 1, it is characterised in that the lower room(6)Middle part is outside Protrude to form isosceles trapezoid accommodating chamber in side.
6. a kind of electromagnetic damping formula surge-chamber according to claim 2, it is characterised in that including controller and displacement detecting Device(9), the displacement detector(9)It is fixedly installed on the upper plate(12)On upper surface, described in the controller electrical connection Displacement detector(9), the displacement detector(9)Electrically connect the electric supply installation.
A kind of 7. electromagnetic damping formula surge-chamber according to claim 6, it is characterised in that the displacement detector(9)For Laser displacement sensor, ultrasonic distance inductor or infrared distance sensor.
A kind of 8. electromagnetic damping formula surge-chamber according to claim 2, it is characterised in that the spring(14)For steel, The electric supply installation is dc source(18).
A kind of 9. electromagnetic damping formula surge-chamber according to claim 2, it is characterised in that the connecting rod(11)Lower end is vertical It is fixedly connected with the lower shoe(10)Middle part.
A kind of 10. electromagnetic damping formula surge-chamber according to claim 1, it is characterised in that the riser(19)For liner The polished processing of concrete directly uses plate-steel liner.
CN201710555706.8A 2017-07-10 2017-07-10 A kind of electromagnetic damping formula surge-chamber Pending CN107355629A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710555706.8A CN107355629A (en) 2017-07-10 2017-07-10 A kind of electromagnetic damping formula surge-chamber

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Application Number Priority Date Filing Date Title
CN201710555706.8A CN107355629A (en) 2017-07-10 2017-07-10 A kind of electromagnetic damping formula surge-chamber

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CN107355629A true CN107355629A (en) 2017-11-17

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201250399Y (en) * 2008-09-01 2009-06-03 中国水电顾问集团华东勘测设计研究院 Dual differential effect surge chamber
CN201738288U (en) * 2010-07-20 2011-02-09 中国农业大学 Double-chamber type surge chamber
US20150021447A1 (en) * 2013-07-18 2015-01-22 Aes Engineering Ltd. Pipe Brace
CN104455139A (en) * 2014-11-07 2015-03-25 浙江大学 Spring vibration isolating device and vibration isolating method based on self-adaption electromagnetic damping
CN204753537U (en) * 2015-06-22 2015-11-11 西华大学 Damped impedance formula regulator
CN105332942A (en) * 2015-12-08 2016-02-17 上海麦玺隆机械科技有限公司 Buffer and diversion water hammer eliminator and using method
CN105332363A (en) * 2015-11-23 2016-02-17 重庆交通大学 Pressure-adjustable core bag type air cushion surge chamber
CN105442506A (en) * 2015-11-11 2016-03-30 河海大学 Impedance hole and method for accelerating attenuation of water-level fluctuation of pressure regulation chamber

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201250399Y (en) * 2008-09-01 2009-06-03 中国水电顾问集团华东勘测设计研究院 Dual differential effect surge chamber
CN201738288U (en) * 2010-07-20 2011-02-09 中国农业大学 Double-chamber type surge chamber
US20150021447A1 (en) * 2013-07-18 2015-01-22 Aes Engineering Ltd. Pipe Brace
CN104455139A (en) * 2014-11-07 2015-03-25 浙江大学 Spring vibration isolating device and vibration isolating method based on self-adaption electromagnetic damping
CN204753537U (en) * 2015-06-22 2015-11-11 西华大学 Damped impedance formula regulator
CN105442506A (en) * 2015-11-11 2016-03-30 河海大学 Impedance hole and method for accelerating attenuation of water-level fluctuation of pressure regulation chamber
CN105332363A (en) * 2015-11-23 2016-02-17 重庆交通大学 Pressure-adjustable core bag type air cushion surge chamber
CN105332942A (en) * 2015-12-08 2016-02-17 上海麦玺隆机械科技有限公司 Buffer and diversion water hammer eliminator and using method

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Application publication date: 20171117