CN109347262A - A kind of anti-siphon method of Generator Stator Cooling water system - Google Patents
A kind of anti-siphon method of Generator Stator Cooling water system Download PDFInfo
- Publication number
- CN109347262A CN109347262A CN201811151809.9A CN201811151809A CN109347262A CN 109347262 A CN109347262 A CN 109347262A CN 201811151809 A CN201811151809 A CN 201811151809A CN 109347262 A CN109347262 A CN 109347262A
- Authority
- CN
- China
- Prior art keywords
- generator stator
- water
- stator coil
- pipe
- flash vessel
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/24—Protection against failure of cooling arrangements, e.g. due to loss of cooling medium or due to interruption of the circulation of cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The invention discloses a kind of anti-siphon methods of Generator Stator Cooling water system, belong to generator cooling field, the following steps are included: a, the water inlet pipe of anti-siphon means is connected on electricity generator stator coil entrance, outlet pipe is connected in electricity generator stator coil outlet；B, flash vessel is put into height and is higher than electricity generator stator coil outlet, exported between water tank in electricity generator stator coil to form flow of cooling water channel by piping connection；C, it uses snorkel to be connected to flash vessel with water tank upper to form the air flow passage in water tank upper to flash vessel, the air of water tank upper is imported by flash vessel by air flow passage, is made in electricity generator stator coil full of cooling water.The present invention is avoided that the impaired risk of the electrical flashover of generation bar, insulation being capable of effective guarantee generating set operational reliability with good anti-siphon effect by accessing anti-siphon means on electricity generator stator coil.
Description
Technical field
The present invention relates to generator cooling technology field more particularly to a kind of anti-siphons of Generator Stator Cooling water system
Method.
Background technique
The stator coil of large capacity water-cooled non salient pole generator generallys use aqueous medium and cools down to stator coil, this is cold
But the principle of water system are as follows: cooling water system is provided with a water tank in lower, the aqueous medium in water tank by water pump pressurization send to
Generator enters in stator coil through electricity generator stator coil entrance, has cooled down the aqueous medium of electricity generator stator coil again from hair
The water tank of motor stator coil outlet return to lower forms closed circle water system in cycles.When water pump whole failure
When, the aqueous medium in stator coil return pipe can extract the aqueous medium in stator coil out since gravity generates negative pressure, make
At anhydrous or gas-vapor mix state is in generator stator bar, may occur in coil electrical flashover, insulation it is impaired or
The risk of service life decline.The technical solution of existing Stator Condense Water System does not consider that extreme case occurs what siphonic effect generated
The reliability service of hazard analysis and HACCP, insulation and entire generating set to electricity generator stator coil constitutes potential threat.
Publication No. CN 106253581A, publication date are that the Chinese patent literature on December 21st, 2016 discloses one kind
Thermal power plant's Generator Stator Cooling water system characterized by comprising stator cooling water case, the first stator cooling water pump, second
Stator cooling water pump, the first cooler, the second cooler, stator cooling water thermostat valve, stator cooling water flow control valve, stator
Cooling water strainer, strainer for feed water bypass electrically operated gate, ion-exchanger, ion-exchanger moisturizing electrically operated gate, ion-exchanger
Moisturizing strainer, determines cold water storage cistern moisturizing electrically operated gate, determines cold water storage cistern moisturizing tune valve, determines cold water storage cistern moisturizing at moisturizing strainer bypass electrically operated gate
Bypass electrically operated gate and anti-siphon electrically operated gate；The stator cooling water case passes through the return pipe of two-way pipeline and electricity generator stator coil
Connection, is successively arranged anti-siphonage pipe throttle orifice and anti-siphon electrically operated gate wherein on a pipeline, the stator cooling water case is logical
It crosses another back of pipeline and withdraws water；First stator cooling water pump, the second stator cooling water pump be connected in parallel after with it is described fixed
Sub- cooling water tank is connected by pipeline；In the entrance of first stator cooling water pump and the entrance point of the second stator cooling water pump
Not She You entrance electrically operated gate, first stator cooling water pump outlet and the second stator cooling water pump outlet set respectively
There is outlet electrically operated gate；First cooler and the second cooler be connected in the stator cooling water thermostat valve in parallel one enter
On pipeline between mouth and stator cooling water pump discharge main pipe；The stator cooling water pump discharge main pipe also pass through pipeline with it is described
Another entrance of stator cooling water thermostat valve connects；In the entrance of first cooler and the entrance difference of the second cooler
Equipped with entrance electrically operated gate, outlet electrically operated gate is respectively equipped in the outlet of first cooler and the outlet of the second cooler；Institute
State stator cooling water flow control valve, stator cooling water strainer for feed water is successively set on going out for the stator cooling water thermostat valve
On mouth to the pipeline between the collecting pipe of electricity generator stator coil；The strainer for feed water bypass electrically operated gate and stator cooling water supply water
Strainer is connected in parallel, and is respectively equipped with entrance electrically operated gate and outlet electrically operated gate at the both ends of the stator cooling water strainer for feed water；Institute
State ion-exchanger moisturizing electrically operated gate, that ion-exchanger is successively set on being exported to for the stator cooling water thermostat valve is described fixed
On the pipeline of sub- cooling water tank；The ion-exchanger moisturizing strainer is connect by pipeline with ion-exchanger, the moisturizing filter
Net bypass electrically operated gate is connected in parallel with ion-exchanger moisturizing strainer, is set respectively at the both ends of the ion-exchanger moisturizing strainer
There are entrance electrically operated gate and outlet electrically operated gate；It is described determine cold water storage cistern moisturizing electrically operated gate with determine cold water storage cistern moisturizing bypass electrically operated gate it is in parallel after
It is connected to the stator cooling water case, it is described to determine cold water storage cistern moisturizing tune valve and be arranged in described to determine going out for cold water storage cistern moisturizing electrically operated gate
At mouthful.
Thermal power plant's Generator Stator Cooling water system disclosed in the patent document, although can be complete in Stator Condense Water System
Stop under state, realizes the automatic starting of Stator Condense Water System；Under Stator Condense Water System operating status, realize that stator is cooling
Water system is automatically stopped, still, when water pump catastrophic failure occurs for Stator Condense Water System, when cooling water system is out of service,
It can not effectively avoid the electrical flashover of bar being occurred for the water extraction in stator coil, the wind that insulation is damaged due to siphonic effect
Danger, influences generating set operational reliability.
Summary of the invention
The present invention in order to overcome the defects of the prior art described above, provides a kind of anti-siphon side of Generator Stator Cooling water system
Method, the present invention can be avoided due to siphonic effect and by generator by accessing anti-siphon means on electricity generator stator coil
The impaired risk of the electrical flashover of water extraction generation bar in stator coil, insulation, has good anti-siphon effect, Neng Gouyou
Effect ensures generating set operational reliability.
The present invention is achieved through the following technical solutions:
A kind of anti-siphon method of Generator Stator Cooling water system, which comprises the following steps:
A, the water inlet pipe of anti-siphon means is connected on electricity generator stator coil entrance, the outlet pipe of anti-siphon means is connected
In electricity generator stator coil outlet；
B, the flash vessel of anti-siphon means is put on spatial position height and is higher than electricity generator stator coil outlet, flash vessel is logical
It crosses piping connection and is exported to tank entry from electricity generator stator coil to be formed between electricity generator stator coil outlet and water tank
Flow of cooling water channel；
C, snorkel is used to be connected to flash vessel with water tank upper to form the air flow passage in water tank upper to flash vessel,
The air of water tank upper is imported into flash vessel by air flow passage, is made in electricity generator stator coil full of cooling water.
The anti-siphon means include water tank, water pump, the water inlet pipe being connected on electricity generator stator coil entrance and connection
Outlet pipe in electricity generator stator coil outlet, further includes flash vessel and return pipe, and the water inlet end and water tank of the water pump connect
Logical, the water outlet of water pump is connect by water inlet pipe with electricity generator stator coil, one end of the return pipe and one end of flash vessel
Connection, the other end of return pipe are connect with water tank, the other end connection of the outlet pipe and flash vessel, are provided on the water tank
One end of snorkel, snorkel is connect with water tank, and the other end is connect with flash vessel.
Balance pipe is provided between the electricity generator stator coil entrance and electricity generator stator coil outlet, the one of balance pipe
End is connect with water inlet pipe, and the other end is connect with outlet pipe.
The spatial position of the flash vessel is exported higher than electricity generator stator coil, and flash vessel is connected by return pipe and water tank
Logical, electricity generator stator coil outlet is connected to by outlet pipe with flash vessel, and outlet pipe and return pipe form flow of cooling water channel.
The top of the flash vessel is provided with venthole, and one end insertion venthole of snorkel is simultaneously connected to flash vessel, another
The air communication at end and water tank internal upper part forms the air flow passage in water tank upper to flash vessel.
The internal diameter of the snorkel is less than the internal diameter of outlet pipe, and the internal diameter of outlet pipe is less than the internal diameter of return pipe.
The balance pipe includes sequentially connected inlet segment, circulation section and water exit end, and the internal diameter of inlet segment is 15 millimeters, out
The internal diameter of water section is 5 millimeters, and the through-hole that diameter is 5 millimeters is provided on outlet pipe, and the water exit end of balance pipe is welded on through-hole.
The circulation section is transition, and circulation section includes first interface and second interface, and the internal diameter of first interface is 15 millis
Rice, the internal diameter of second interface are 5 millimeters, and the end face of first interface is bonded with the first O-ring seals, the end face bonding of second interface
There are the second O-ring seals, the one end for the section that circulates is provided with the first anchor ear, and the other end for the section that circulates is provided with the second anchor ear, circulation
The first interface of section is fixedly connected by the first anchor ear with water inlet pipe, and the second interface for the section that circulates passes through the second anchor ear and outlet pipe
It is fixedly connected.
The balance pipe is integrally formed, and the cross section of balance pipe is in inverse u shape.
The spatial position of the outlet pipe is exported higher than electricity generator stator coil.
The water pump is two, and two water pumps are arranged side by side.
Basic principle of the invention is as follows:
By the way that a flash vessel is arranged at the high point that electricity generator stator coil exports, flash vessel is series at power generation by piping connection
To form the flow of cooling water channel for being exported to tank entry from electricity generator stator coil between the outlet of machine stator coil and water tank,
Flash vessel is connected to water tank upper by snorkel to form the air flow passage in water tank upper to flash vessel.When stator is cold
But when fault of water pump causes water system out of service in water system, the water in return pipe can continue back at water tank under the effect of gravity
In, the swabbing action that this stage generates will be since the air of water tank upper be imported on flash vessel by the snorkel on flash vessel
Portion, so that being no longer negative pressure inside flash vessel, the water in generator stator bar will not generate siphonic effect, make inside bar still
It is full of cooling water, so so as to the stator bar of effective protection generator.
Beneficial effects of the present invention are mainly manifested in following aspect:
One, of the invention, " a, the water inlet pipe of anti-siphon means is connected on electricity generator stator coil entrance, by anti-siphon means
Outlet pipe be connected to electricity generator stator coil outlet on；B, the flash vessel of anti-siphon means is put into height on spatial position
It is exported higher than electricity generator stator coil, flash vessel is exported between water tank in electricity generator stator coil to be formed by piping connection
The flow of cooling water channel of tank entry is exported to from electricity generator stator coil；C, using snorkel by flash vessel and water tank upper
Connection is led the air of water tank upper by air flow passage with forming the air flow passage in water tank upper to flash vessel
Enter flash vessel, make in electricity generator stator coil full of cooling water ", as a complete technical solution, compared with the prior art,
By accessing anti-siphon means on electricity generator stator coil, can be avoided due to siphonic effect and will be in electricity generator stator coil
Water extraction the impaired risk of the electrical flashover of bar, insulation occurs, there is good anti-siphon effect, being capable of effective guarantee power generation
Unit operational reliability.
Two, of the invention, the water inlet end of water pump is connected to water tank, and the water outlet of water pump passes through water inlet pipe and generator unit stator line
Circle connection, one end of the return pipe and one end of flash vessel connect, and the other end of return pipe is connect with water tank, the outlet pipe
It is connect with the other end of flash vessel, snorkel is provided on the water tank, one end of snorkel is connect with water tank, the other end and expansion
Container connection, in use, can lead to when electricity generator stator coil return water is conducted due to the negative pressure that gravity generates to flash vessel
It crosses snorkel to import the air of water tank upper in flash vessel, makes that negative pressure can not be generated in flash vessel and electricity generator stator coil,
So as to effectively avoid that the electrical flashover of bar, insulation are occurred for the water extraction in electricity generator stator coil due to siphonic effect
Impaired risk improves generating set operation stability.
Three, of the invention, it is provided with balance pipe between electricity generator stator coil entrance and electricity generator stator coil outlet, is balanced
One end of pipe is connect with water inlet pipe, and the other end is connect with outlet pipe, by the way that balance pipe is arranged, can be prevented cooling water and be flowed through power generation
The pipeline vibration that may cause due to water flow factor when machine stator coil has further ensured that generating set is stable
Property.
Four, of the invention, the spatial position of flash vessel is exported higher than electricity generator stator coil, and flash vessel passes through return pipe and water
Case connection, electricity generator stator coil outlet are connected to by outlet pipe with flash vessel, and outlet pipe and return pipe form flow of cooling water
Channel ensure that in electricity generator stator coil that cooling water can return to water tank along flow of cooling water channel and uninterruptedly be followed
Ring.
Five, of the invention, the top of flash vessel is provided with venthole, and one end insertion venthole of snorkel simultaneously connects with flash vessel
Logical, the air communication of the other end and water tank internal upper part forms the air flow passage in water tank upper to flash vessel, when water pump is prominent
Air in water tank when return water in-pipe flow continues flowing due to gravitational effect, can be imported in flash vessel, avoid expanding by right failure
Negative pressure is formed in container.
Six, of the invention, the internal diameter of snorkel is less than the internal diameter of outlet pipe, and the internal diameter of outlet pipe is less than the internal diameter of return pipe,
Particular design is carried out by the inner diameter size to snorkel, outlet pipe and return pipe, can optimize and guarantee not fill in snorkel
Underfill water in full water or flash vessel is conducive to improve anti-siphon effect.
Seven, of the invention, balance pipe includes sequentially connected inlet segment, circulation section and water exit end, and the internal diameter of inlet segment is 15
Millimeter, the internal diameter of water exit end are 5 millimeters, the through-hole that diameter is 5 millimeters are provided on outlet pipe, the water exit end of balance pipe is welded on logical
Kong Shang in turn ensures that the water flow passed through in balance pipe is sufficiently small, favorably while preventing water flow factor from causing pipeline vibration
It designs and runs in Generator Stator Cooling water system.
Eight, of the invention, circulation section is transition, and circulation section includes first interface and second interface, the internal diameter of first interface
It is 15 millimeters, the internal diameter of second interface is 5 millimeters, and the end face of first interface is bonded with the first O-ring seals, the end of second interface
Face is bonded with the second O-ring seals, and the one end for the section that circulates is provided with the first anchor ear, and the other end for the section that circulates is provided with second armful
Hoop, the first interface for the section that circulates are fixedly connected by the first anchor ear with water inlet pipe, and the second interface for the section that circulates passes through the second anchor ear
It is fixedly connected with outlet pipe, by the way that the internal diameter for the section first interface that circulates and the internal diameter of inlet segment are arranged to same size, by the
The internal diameter of two interfaces and the internal diameter of water exit end are arranged to same size, pass through so that the water energy in balance pipe is enough smooth, are conducive to flat
It keeps preventing the pipeline vibration that generator water flow factor may cause compared with weep flux, greatly ensureing in weighing apparatus pipe
Generating set operational reliability.
Nine, of the invention, balance pipe is integrally formed, and the cross section of balance pipe is in inverse u shape, is not only convenient for that water will be entered
Pipe is connected to outlet pipe, and by the way that balance pipe setting is structure as a whole, can be enhanced the overall structural strength of balance pipe, be protected
Hinder the stability in use of balance pipe.
Ten, of the invention, the spatial position of outlet pipe is exported higher than electricity generator stator coil, is conducive in electricity generator stator coil
Water can be completely filled with.
11, of the invention, water pump is two, and two water pumps are arranged side by side, and two water pumps can be realized the standby fortune of a fortune one
Line mode improves system redundancy.
Detailed description of the invention
The present invention is described in further detail below in conjunction with specification drawings and specific embodiments, in which:
Fig. 1 is the structural schematic diagram of anti-siphon means of the present invention；
Fig. 2 is the structural schematic diagram of anti-siphon means in the embodiment of the present invention 3；
Fig. 3 is the structural schematic diagram of anti-siphon means in the embodiment of the present invention 5；
Fig. 4 is the structural schematic diagram of anti-siphon means in the embodiment of the present invention 6；
Marked in the figure: 1, water tank, 2, water pump, 3, water inlet pipe, 4, outlet pipe, 5, flash vessel, 6, return pipe, 7, snorkel, 8, flat
Weighing apparatus pipe, 9, inlet segment, 10, circulation section, 11, water exit end, 12, first interface, 13, second interface, the 14, first O-ring seals,
15, the second O-ring seals, the 16, first anchor ear, the 17, second anchor ear.
Specific embodiment
Embodiment 1
A kind of anti-siphon method of Generator Stator Cooling water system, comprising the following steps:
A, the water inlet pipe of anti-siphon means 3 is connected on electricity generator stator coil entrance, the outlet pipe 4 of anti-siphon means is connected
It connects in electricity generator stator coil outlet；
B, the flash vessel of anti-siphon means 5 is put on spatial position height and is higher than electricity generator stator coil outlet, flash vessel 5
It is exported by piping connection in electricity generator stator coil and is exported to water tank 1 between water tank 1 to be formed from electricity generator stator coil
The flow of cooling water channel of entrance；
C, the air flowing for using snorkel 7 to be connected to flash vessel 5 with 1 top of water tank to be formed in water tank 1 top to flash vessel 5
The air on 1 top of water tank is imported flash vessel 5 by air flow passage, made in electricity generator stator coil full of cooling by channel
Water.
The present embodiment is that most basic embodiment can by accessing anti-siphon means on electricity generator stator coil
It avoids the electrical flashover of bar being occurred for the water extraction in electricity generator stator coil, the risk that insulation is damaged due to siphonic effect,
It, being capable of effective guarantee generating set operational reliability with good anti-siphon effect.
Embodiment 2
A kind of anti-siphon method of Generator Stator Cooling water system, comprising the following steps:
A, the water inlet pipe of anti-siphon means 3 is connected on electricity generator stator coil entrance, the outlet pipe 4 of anti-siphon means is connected
It connects in electricity generator stator coil outlet；
B, the flash vessel of anti-siphon means 5 is put on spatial position height and is higher than electricity generator stator coil outlet, flash vessel 5
It is exported by piping connection in electricity generator stator coil and is exported to water tank 1 between water tank 1 to be formed from electricity generator stator coil
The flow of cooling water channel of entrance；
C, the air flowing for using snorkel 7 to be connected to flash vessel 5 with 1 top of water tank to be formed in water tank 1 top to flash vessel 5
The air on 1 top of water tank is imported flash vessel 5 by air flow passage, made in electricity generator stator coil full of cooling by channel
Water.
The anti-siphon means include water tank 1, water pump 2, the water inlet pipe 3 being connected on electricity generator stator coil entrance and connect
Connect the outlet pipe 4 in electricity generator stator coil outlet, further include flash vessel 5 and return pipe 6, the water inlet end of the water pump 2 with
Water tank 1 is connected to, and the water outlet of water pump 2 is connect by water inlet pipe 3 with electricity generator stator coil, one end of the return pipe 6 and expansion
One end of container 5 connects, and the other end of return pipe 6 is connect with water tank 1, and the outlet pipe 4 is connect with the other end of flash vessel 5,
Snorkel 7 is provided on the water tank 1, one end of snorkel 7 is connect with water tank 1, and the other end is connect with flash vessel 5.
The present embodiment is a better embodiment, and the water inlet end of water pump is connected to water tank, and the water outlet of water pump is by entering water
Pipe is connect with electricity generator stator coil, and one end of the return pipe and one end of flash vessel connect, the other end and water of return pipe
The other end of case connection, the outlet pipe and flash vessel connects, and is provided with snorkel, one end of snorkel and water on the water tank
Case connection, the other end are connect with flash vessel, in use, when electricity generator stator coil return water since the negative pressure that gravity generates passes
When being directed at flash vessel, the air of water tank upper can be imported in flash vessel by snorkel, make flash vessel and generator unit stator line
Negative pressure can not be generated in circle, so as to effectively avoid that the water extraction in electricity generator stator coil occurring due to siphonic effect
The impaired risk of the electrical flashover of bar, insulation, improves generating set operation stability.
Embodiment 3
A kind of anti-siphon method of Generator Stator Cooling water system, comprising the following steps:
A, the water inlet pipe of anti-siphon means 3 is connected on electricity generator stator coil entrance, the outlet pipe 4 of anti-siphon means is connected
It connects in electricity generator stator coil outlet；
B, the flash vessel of anti-siphon means 5 is put on spatial position height and is higher than electricity generator stator coil outlet, flash vessel 5
It is exported by piping connection in electricity generator stator coil and is exported to water tank 1 between water tank 1 to be formed from electricity generator stator coil
The flow of cooling water channel of entrance；
C, the air flowing for using snorkel 7 to be connected to flash vessel 5 with 1 top of water tank to be formed in water tank 1 top to flash vessel 5
The air on 1 top of water tank is imported flash vessel 5 by air flow passage, made in electricity generator stator coil full of cooling by channel
Water.
The anti-siphon means include water tank 1, water pump 2, the water inlet pipe 3 being connected on electricity generator stator coil entrance and connect
Connect the outlet pipe 4 in electricity generator stator coil outlet, further include flash vessel 5 and return pipe 6, the water inlet end of the water pump 2 with
Water tank 1 is connected to, and the water outlet of water pump 2 is connect by water inlet pipe 3 with electricity generator stator coil, one end of the return pipe 6 and expansion
One end of container 5 connects, and the other end of return pipe 6 is connect with water tank 1, and the outlet pipe 4 is connect with the other end of flash vessel 5,
Snorkel 7 is provided on the water tank 1, one end of snorkel 7 is connect with water tank 1, and the other end is connect with flash vessel 5.
It is provided with balance pipe 8 between the electricity generator stator coil entrance and electricity generator stator coil outlet, balance pipe 8
One end is connect with water inlet pipe 3, and the other end is connect with outlet pipe 4.
The present embodiment is another better embodiment, between electricity generator stator coil entrance and electricity generator stator coil outlet
It is provided with balance pipe, one end of balance pipe is connect with water inlet pipe, and the other end is connect with outlet pipe, can be with by the way that balance pipe is arranged
Prevent the pipeline vibration that may cause due to water flow factor when cooling water flows through electricity generator stator coil, further ensures
Generating set operation stability.
Embodiment 4
A kind of anti-siphon method of Generator Stator Cooling water system, comprising the following steps:
A, the water inlet pipe of anti-siphon means 3 is connected on electricity generator stator coil entrance, the outlet pipe 4 of anti-siphon means is connected
It connects in electricity generator stator coil outlet；
B, the flash vessel of anti-siphon means 5 is put on spatial position height and is higher than electricity generator stator coil outlet, flash vessel 5
It is exported by piping connection in electricity generator stator coil and is exported to water tank 1 between water tank 1 to be formed from electricity generator stator coil
The flow of cooling water channel of entrance；
C, the air flowing for using snorkel 7 to be connected to flash vessel 5 with 1 top of water tank to be formed in water tank 1 top to flash vessel 5
The air on 1 top of water tank is imported flash vessel 5 by air flow passage, made in electricity generator stator coil full of cooling by channel
Water.
The anti-siphon means include water tank 1, water pump 2, the water inlet pipe 3 being connected on electricity generator stator coil entrance and connect
Connect the outlet pipe 4 in electricity generator stator coil outlet, further include flash vessel 5 and return pipe 6, the water inlet end of the water pump 2 with
Water tank 1 is connected to, and the water outlet of water pump 2 is connect by water inlet pipe 3 with electricity generator stator coil, one end of the return pipe 6 and expansion
One end of container 5 connects, and the other end of return pipe 6 is connect with water tank 1, and the outlet pipe 4 is connect with the other end of flash vessel 5,
Snorkel 7 is provided on the water tank 1, one end of snorkel 7 is connect with water tank 1, and the other end is connect with flash vessel 5.
It is provided with balance pipe 8 between the electricity generator stator coil entrance and electricity generator stator coil outlet, balance pipe 8
One end is connect with water inlet pipe 3, and the other end is connect with outlet pipe 4.
The spatial position of the flash vessel 5 is exported higher than electricity generator stator coil, and flash vessel 5 passes through return pipe 6 and water tank 1
Connection, electricity generator stator coil outlet are connected to by outlet pipe 4 with flash vessel 5, and outlet pipe 4 and return pipe 6 form cooling water flow
Dynamic channel.
The top of the flash vessel 5 is provided with venthole, and one end insertion venthole of snorkel 7 is simultaneously connected to flash vessel 5, separately
The air communication of one end and 1 internal upper part of water tank forms the air flow passage in water tank 1 top to flash vessel 5.
The internal diameter of the snorkel 7 is less than the internal diameter of outlet pipe 4, and the internal diameter of outlet pipe 4 is less than the internal diameter of return pipe 6.
The present embodiment is another better embodiment, and the spatial position of flash vessel exports higher than electricity generator stator coil, expands
Container be connected to by return pipe with water tank, and electricity generator stator coil outlet is connected to by outlet pipe with flash vessel, outlet pipe with time
Water pipe forms flow of cooling water channel, ensure that cooling water can be returned to along flow of cooling water channel in electricity generator stator coil
Water tank is uninterruptedly recycled.
The top of flash vessel is provided with venthole, and one end insertion venthole of snorkel simultaneously be connected to flash vessel, the other end and
The air communication of water tank internal upper part forms the air flow passage in water tank upper to flash vessel, when water pump catastrophic failure, return water
When in-pipe flow continues flowing due to gravitational effect, the air in water tank can be imported in flash vessel, avoid being formed in flash vessel
Negative pressure.
The internal diameter of snorkel is less than the internal diameter of outlet pipe, and the internal diameter of outlet pipe is less than the internal diameter of return pipe, by ventilation
The inner diameter size of pipe, outlet pipe and return pipe carries out particular design, can optimize and guarantee underfill water or dilatation in snorkel
Underfill water in device is conducive to improve anti-siphon effect.
Embodiment 5
A kind of anti-siphon method of Generator Stator Cooling water system, comprising the following steps:
A, the water inlet pipe of anti-siphon means 3 is connected on electricity generator stator coil entrance, the outlet pipe 4 of anti-siphon means is connected
It connects in electricity generator stator coil outlet；
B, the flash vessel of anti-siphon means 5 is put on spatial position height and is higher than electricity generator stator coil outlet, flash vessel 5
It is exported by piping connection in electricity generator stator coil and is exported to water tank 1 between water tank 1 to be formed from electricity generator stator coil
The flow of cooling water channel of entrance；
C, the air flowing for using snorkel 7 to be connected to flash vessel 5 with 1 top of water tank to be formed in water tank 1 top to flash vessel 5
The air on 1 top of water tank is imported flash vessel 5 by air flow passage, made in electricity generator stator coil full of cooling by channel
Water.
The anti-siphon means include water tank 1, water pump 2, the water inlet pipe 3 being connected on electricity generator stator coil entrance and connect
Connect the outlet pipe 4 in electricity generator stator coil outlet, further include flash vessel 5 and return pipe 6, the water inlet end of the water pump 2 with
Water tank 1 is connected to, and the water outlet of water pump 2 is connect by water inlet pipe 3 with electricity generator stator coil, one end of the return pipe 6 and expansion
One end of container 5 connects, and the other end of return pipe 6 is connect with water tank 1, and the outlet pipe 4 is connect with the other end of flash vessel 5,
Snorkel 7 is provided on the water tank 1, one end of snorkel 7 is connect with water tank 1, and the other end is connect with flash vessel 5.
It is provided with balance pipe 8 between the electricity generator stator coil entrance and electricity generator stator coil outlet, balance pipe 8
One end is connect with water inlet pipe 3, and the other end is connect with outlet pipe 4.
The spatial position of the flash vessel 5 is exported higher than electricity generator stator coil, and flash vessel 5 passes through return pipe 6 and water tank 1
Connection, electricity generator stator coil outlet are connected to by outlet pipe 4 with flash vessel 5, and outlet pipe 4 and return pipe 6 form cooling water flow
Dynamic channel.
The top of the flash vessel 5 is provided with venthole, and one end insertion venthole of snorkel 7 is simultaneously connected to flash vessel 5, separately
The air communication of one end and 1 internal upper part of water tank forms the air flow passage in water tank 1 top to flash vessel 5.
The internal diameter of the snorkel 7 is less than the internal diameter of outlet pipe 4, and the internal diameter of outlet pipe 4 is less than the internal diameter of return pipe 6.
The balance pipe 8 includes sequentially connected inlet segment 9, circulation section 10 and water exit end 11, and the internal diameter of inlet segment 9 is 15
Millimeter, the internal diameter of water exit end 11 are 5 millimeters, and the through-hole that diameter is 5 millimeters is provided on outlet pipe 4, and the water exit end 11 of balance pipe 8 welds
It connects on through-hole.
The circulation section 10 is transition, and circulation section includes first interface 12 and second interface 13, first interface 12 it is interior
Diameter is 15 millimeters, and the internal diameter of second interface 13 is 5 millimeters, and the end face of first interface 12 is bonded with the first O-ring seals 14, second
The end face of interface 13 is bonded with the second O-ring seals 15, and one end of circulation section 10 is provided with the first anchor ear 16, circulation section 10 it is another
One end is provided with the second anchor ear 17, and the first interface 12 of circulation section 10 is fixedly connected with water inlet pipe 3 by the first anchor ear 16, is circulated
The second interface 13 of section 10 is fixedly connected by the second anchor ear 17 with outlet pipe 4.
The present embodiment is another better embodiment, and balance pipe includes sequentially connected inlet segment, circulation section and water exit end,
The internal diameter of inlet segment is 15 millimeters, and the internal diameter of water exit end is 5 millimeters, and the through-hole that diameter is 5 millimeters, balance pipe are provided on outlet pipe
Water exit end be welded on through-hole, prevent water flow factor from causing pipeline vibration while, in turn ensure and pass through in balance pipe
Water flow is sufficiently small, is conducive to the design of Generator Stator Cooling water system and operation.
Circulation section is transition, and circulation section includes first interface and second interface, and the internal diameter of first interface is 15 millimeters, the
The internal diameter of two interfaces is 5 millimeters, and the end face of first interface is bonded with the first O-ring seals, and the end face of second interface is bonded with the
Two O-ring seals, the one end for the section that circulates are provided with the first anchor ear, and the other end for the section that circulates is provided with the second anchor ear, and circulate section
First interface is fixedly connected by the first anchor ear with water inlet pipe, and the second interface for the section that circulates is fixed by the second anchor ear with outlet pipe
Connection, by the way that the internal diameter of the internal diameter for the section first interface that circulates and inlet segment is arranged to same size, by the internal diameter of second interface
Be arranged to same size with the internal diameter of water exit end so that the water energy in balance pipe it is enough it is smooth pass through, be conducive to keep in balance pipe compared with
Weep flux, the pipeline vibration that prevention generator water flow factor may cause, has greatly ensured generating set operation
Reliability.
Embodiment 6
A kind of anti-siphon method of Generator Stator Cooling water system, comprising the following steps:
A, the water inlet pipe of anti-siphon means 3 is connected on electricity generator stator coil entrance, the outlet pipe 4 of anti-siphon means is connected
It connects in electricity generator stator coil outlet；
B, the flash vessel of anti-siphon means 5 is put on spatial position height and is higher than electricity generator stator coil outlet, flash vessel 5
It is exported by piping connection in electricity generator stator coil and is exported to water tank 1 between water tank 1 to be formed from electricity generator stator coil
The flow of cooling water channel of entrance；
C, the air flowing for using snorkel 7 to be connected to flash vessel 5 with 1 top of water tank to be formed in water tank 1 top to flash vessel 5
The air on 1 top of water tank is imported flash vessel 5 by air flow passage, made in electricity generator stator coil full of cooling by channel
Water.
The anti-siphon means include water tank 1, water pump 2, the water inlet pipe 3 being connected on electricity generator stator coil entrance and connect
Connect the outlet pipe 4 in electricity generator stator coil outlet, further include flash vessel 5 and return pipe 6, the water inlet end of the water pump 2 with
Water tank 1 is connected to, and the water outlet of water pump 2 is connect by water inlet pipe 3 with electricity generator stator coil, one end of the return pipe 6 and expansion
One end of container 5 connects, and the other end of return pipe 6 is connect with water tank 1, and the outlet pipe 4 is connect with the other end of flash vessel 5,
Snorkel 7 is provided on the water tank 1, one end of snorkel 7 is connect with water tank 1, and the other end is connect with flash vessel 5.
It is provided with balance pipe 8 between the electricity generator stator coil entrance and electricity generator stator coil outlet, balance pipe 8
One end is connect with water inlet pipe 3, and the other end is connect with outlet pipe 4.
The spatial position of the flash vessel 5 is exported higher than electricity generator stator coil, and flash vessel 5 passes through return pipe 6 and water tank 1
Connection, electricity generator stator coil outlet are connected to by outlet pipe 4 with flash vessel 5, and outlet pipe 4 and return pipe 6 form cooling water flow
Dynamic channel.
The top of the flash vessel 5 is provided with venthole, and one end insertion venthole of snorkel 7 is simultaneously connected to flash vessel 5, separately
The air communication of one end and 1 internal upper part of water tank forms the air flow passage in water tank 1 top to flash vessel 5.
The internal diameter of the snorkel 7 is less than the internal diameter of outlet pipe 4, and the internal diameter of outlet pipe 4 is less than the internal diameter of return pipe 6.
The balance pipe 8 includes sequentially connected inlet segment 9, circulation section 10 and water exit end 11, and the internal diameter of inlet segment 9 is 15
Millimeter, the internal diameter of water exit end 11 are 5 millimeters, and the through-hole that diameter is 5 millimeters is provided on outlet pipe 4, and the water exit end 11 of balance pipe 8 welds
It connects on through-hole.
The balance pipe 8 is integrally formed, and the cross section of balance pipe 8 is in inverse u shape.
The spatial position of the outlet pipe 4 is exported higher than electricity generator stator coil.
The water pump 2 is two, and two water pumps 2 are arranged side by side.
The present embodiment is preferred forms, by accessing anti-siphon means on electricity generator stator coil, be can be avoided
The electrical flashover of bar is occurred into for the water extraction in electricity generator stator coil due to siphonic effect, the risk that insulation is damaged, had
Good anti-siphon effect, being capable of effective guarantee generating set operational reliability.
Balance pipe is integrally formed, and the cross section of balance pipe is in inverse u shape, is not only convenient for water inlet pipe and outlet pipe
Connection, and by the way that balance pipe setting is structure as a whole, the overall structural strength of balance pipe can be enhanced, ensure balance pipe
Stability in use.
The spatial position of outlet pipe is exported higher than electricity generator stator coil, can be completely filled with conducive in electricity generator stator coil
Water.
Water pump is two, and two water pumps are arranged side by side, and two water pumps can be realized the standby method of operation of a fortune one, improve
System redundancy.
Claims (10)
1. a kind of anti-siphon method of Generator Stator Cooling water system, which comprises the following steps: a, fill anti-siphon
The water inlet pipe (3) set is connected on electricity generator stator coil entrance, and it is fixed that the outlet pipe (4) of anti-siphon means is connected to generator
In subcoil outlet；
B, the flash vessel of anti-siphon means (5) is put on spatial position height and is higher than electricity generator stator coil outlet, dilatation
Device (5) is exported in electricity generator stator coil by piping connection and is exported between water tank (1) with being formed from electricity generator stator coil
To the flow of cooling water channel of water tank (1) entrance；
C, snorkel (7) is used to be connected to flash vessel (5) with water tank (1) top to be formed in water tank (1) top to flash vessel (5)
Air flow passage, the air on water tank (1) top is imported by flash vessel (5) by air flow passage, makes generator unit stator
Cooling water is full of in coil.
2. a kind of anti-siphon method of Generator Stator Cooling water system according to claim 1, it is characterised in that: described anti-
Siphoning installation includes water tank (1), water pump (2), the water inlet pipe (3) being connected on electricity generator stator coil entrance and is connected to power generation
Outlet pipe (4) in the outlet of machine stator coil, further includes flash vessel (5) and return pipe (6), the water inlet end of the water pump (2) and
The water outlet of water tank (1) connection, water pump (2) is connect by water inlet pipe (3) with electricity generator stator coil, the return pipe (6)
One end is connect with the one end of flash vessel (5), and the other end of return pipe (6) is connect with water tank (1), the outlet pipe (4) and dilatation
The other end of device (5) connects, and is provided with snorkel (7) on the water tank (1), and one end of snorkel (7) is connect with water tank (1),
The other end is connect with flash vessel (5).
3. a kind of anti-siphon method of Generator Stator Cooling water system according to claim 2, it is characterised in that: the hair
It is provided with balance pipe (8) between motor stator coil entrance and electricity generator stator coil outlet, one end of balance pipe (8) and enters water
(3) connection is managed, the other end is connect with outlet pipe (4).
4. a kind of anti-siphon method of Generator Stator Cooling water system according to claim 2, it is characterised in that: the expansion
The spatial position of container (5) is exported higher than electricity generator stator coil, and flash vessel (5) is connected to by return pipe (6) with water tank (1),
Electricity generator stator coil outlet is connected to by outlet pipe (4) with flash vessel (5), and outlet pipe (4) and return pipe (6) form cooling water
Flow channel.
5. a kind of anti-siphon method of Generator Stator Cooling water system according to claim 2, it is characterised in that: the expansion
The top of container (5) is provided with venthole, and one end insertion venthole of snorkel (7) is simultaneously connected to, the other end and water with flash vessel (5)
The air communication of case (1) internal upper part forms the air flow passage in water tank (1) top to flash vessel (5).
6. a kind of anti-siphon method of Generator Stator Cooling water system according to claim 2, it is characterised in that: described logical
The internal diameter of tracheae (7) is less than the internal diameter of outlet pipe (4), and the internal diameter of outlet pipe (4) is less than the internal diameter of return pipe (6).
7. a kind of anti-siphon method of Generator Stator Cooling water system according to claim 3, it is characterised in that: described flat
Weighing apparatus pipe (8) includes sequentially connected inlet segment (9), circulation section (10) and water exit end (11), and the internal diameter of inlet segment (9) is 15 millis
Rice, the internal diameter of water exit end (11) are 5 millimeters, and the through-hole that diameter is 5 millimeters, the water exit end of balance pipe (8) are provided on outlet pipe (4)
(11) it is welded on through-hole.
8. a kind of anti-siphon method of Generator Stator Cooling water system according to claim 7, it is characterised in that: the stream
Logical section (10) are transition, and circulation section includes first interface (12) and second interface (13), and the internal diameter of first interface (12) is 15
Millimeter, the internal diameter of second interface (13) they are 5 millimeters, and the end face of first interface (12) is bonded with the first O-ring seals (14), second
The end face of interface (13) is bonded with the second O-ring seals (15), and one end of circulation section (10) is provided with the first anchor ear (16), is circulated
The other end of section (10) is provided with the second anchor ear (17), and the first interface (12) of circulation section (10) passes through the first anchor ear (16) and enters
Water pipe (3) is fixedly connected, and the second interface (13) of circulation section (10) is fixedly connected by the second anchor ear (17) with outlet pipe (4).
9. a kind of anti-siphon method of Generator Stator Cooling water system according to claim 7, it is characterised in that: described flat
Weighing apparatus pipe (8) is integrally formed, and the cross section of balance pipe (8) is in inverse u shape.
10. a kind of anti-siphon method of Generator Stator Cooling water system according to claim 2, it is characterised in that: described
The spatial position of outlet pipe (4) is exported higher than electricity generator stator coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811151809.9A CN109347262B (en) | 2018-09-29 | 2018-09-29 | Anti-siphon method for generator stator cooling water system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811151809.9A CN109347262B (en) | 2018-09-29 | 2018-09-29 | Anti-siphon method for generator stator cooling water system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109347262A true CN109347262A (en) | 2019-02-15 |
| CN109347262B CN109347262B (en) | 2020-12-04 |
Family
ID=65307721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811151809.9A Active CN109347262B (en) | 2018-09-29 | 2018-09-29 | Anti-siphon method for generator stator cooling water system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109347262B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5439803A (en) * | 1977-09-05 | 1979-03-27 | Toshiba Corp | Hydrogen gas leakage detector |
| SU694943A1 (en) * | 1978-06-16 | 1979-10-30 | Предприятие П/Я А-7376 | Arrangement for oil supply of shaft seals in a turbogenerator with hydrogen cooling |
| JPS58159648A (en) * | 1982-03-16 | 1983-09-22 | Toshiba Corp | Coil coolant passing type rotary electric machine |
| JPS6154842A (en) * | 1984-08-27 | 1986-03-19 | Hitachi Ltd | Cooler of rotary electric machine |
| CN200976528Y (en) * | 2006-12-08 | 2007-11-14 | 江苏远东电机制造有限公司 | Built-in air cooling structure of motor |
| CN103299142A (en) * | 2011-01-13 | 2013-09-11 | 西门子公司 | Cooling device for a super conductor and super conducting synchronous machine |
| EP2690760A1 (en) * | 2012-07-23 | 2014-01-29 | Alstom Technology Ltd | Electric machine |
| CN205355983U (en) * | 2016-01-12 | 2016-06-29 | 董鉴锋 | 1000MW steam turbine power generation machine stator water cooling device |
| CN207833319U (en) * | 2018-02-24 | 2018-09-07 | 大唐华银电力股份有限公司金竹山火力发电分公司 | A kind of Generator Stator Cooling system with overpressure protection function |
| CN207849348U (en) * | 2018-02-11 | 2018-09-11 | 哈尔滨汽轮机厂辅机工程有限公司 | The low-pressure heater of the hydrophobic cooling section of hydrocone type built in a kind of band |
-
2018
- 2018-09-29 CN CN201811151809.9A patent/CN109347262B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5439803A (en) * | 1977-09-05 | 1979-03-27 | Toshiba Corp | Hydrogen gas leakage detector |
| SU694943A1 (en) * | 1978-06-16 | 1979-10-30 | Предприятие П/Я А-7376 | Arrangement for oil supply of shaft seals in a turbogenerator with hydrogen cooling |
| JPS58159648A (en) * | 1982-03-16 | 1983-09-22 | Toshiba Corp | Coil coolant passing type rotary electric machine |
| JPS6154842A (en) * | 1984-08-27 | 1986-03-19 | Hitachi Ltd | Cooler of rotary electric machine |
| CN200976528Y (en) * | 2006-12-08 | 2007-11-14 | 江苏远东电机制造有限公司 | Built-in air cooling structure of motor |
| CN103299142A (en) * | 2011-01-13 | 2013-09-11 | 西门子公司 | Cooling device for a super conductor and super conducting synchronous machine |
| EP2690760A1 (en) * | 2012-07-23 | 2014-01-29 | Alstom Technology Ltd | Electric machine |
| CN205355983U (en) * | 2016-01-12 | 2016-06-29 | 董鉴锋 | 1000MW steam turbine power generation machine stator water cooling device |
| CN207849348U (en) * | 2018-02-11 | 2018-09-11 | 哈尔滨汽轮机厂辅机工程有限公司 | The low-pressure heater of the hydrophobic cooling section of hydrocone type built in a kind of band |
| CN207833319U (en) * | 2018-02-24 | 2018-09-07 | 大唐华银电力股份有限公司金竹山火力发电分公司 | A kind of Generator Stator Cooling system with overpressure protection function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109347262B (en) | 2020-12-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104658620B (en) | A kind of major loop circulating device for pool liquid heavy metal cooled reactor | |
| CN109000413A (en) | A kind of passive outboard cooling system suitable for underwater platform | |
| CN102789822A (en) | Pressurized water reactor with upper vessel section providing both pressure and flow control | |
| CN103247356A (en) | Water-spray residual heat removal system for nuclear power plant | |
| CN104885160A (en) | Nuclear reactor with liquid metal coolant | |
| CN104112482B (en) | Passive from flow-control flood pattern | |
| CN108831573A (en) | A kind of nuclear power station secondary side passive residual heat removal security system | |
| CN106409353B (en) | It is a kind of based on gaslift liquid metal cooling the multi-functional heap of pool reactor in hot separating system | |
| CN102903401A (en) | Pressurized water reactor with reactor coolant pumps operating in the downcomer annulus | |
| CN105118534B (en) | Passive Spent Fuel Pool cooling and water charging system | |
| CN209104975U (en) | A kind of Generator Stator Cooling water system anti-siphon means | |
| CN103423591B (en) | A kind of distributed energy utilization system for natural gas filling station and method | |
| CN109347262A (en) | A kind of anti-siphon method of Generator Stator Cooling water system | |
| CN109120105A (en) | A kind of Generator Stator Cooling water system anti-siphon means | |
| CN202947336U (en) | Heat absorber of tower type solar power station | |
| CN102353196B (en) | Cooling water supply system of bulb tubular turbine generator set | |
| CN202598847U (en) | Layered quick heating water storage tank of hot water system | |
| CN102607174B (en) | Layered quick-heating water storage tank for hot water system | |
| CN205583903U (en) | Cooling system of bulb through -flow machine | |
| CN209181344U (en) | A kind of liquid cooling system of seamless switching | |
| CN208416778U (en) | A kind of cooling system of turbine-generator units | |
| KR101456575B1 (en) | In vessel boron injection system | |
| CN202254563U (en) | Cooling water supply system for bulb through-flow type water-turbine generator set | |
| CN207423551U (en) | A kind of recovery type heat commodity inspection device for water heater | |
| CN206556279U (en) | Compact heat collector and solar water heater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20190508 Address after: 618000 No. 18, Third Section of Lushan South Road, Deyang City, Sichuan Province Applicant after: Dongfang Electric Automatic Control Engineering Co., Ltd. Applicant after: Dongfang Electric Group Dongfang Motor Co., Ltd. Address before: 618000 No. 138 Jialing Jiangxi Road, Jingyang District, Deyang City, Sichuan Province Applicant before: DFEM Control Equipment Co., Ltd. Applicant before: Dongfang Electric Group Dongfang Motor Co., Ltd. |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |