CN203151314U - Compulsory circulating evaporation cooling device for water turbine generator stator busbar - Google Patents
Compulsory circulating evaporation cooling device for water turbine generator stator busbar Download PDFInfo
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- CN203151314U CN203151314U CN 201220569963 CN201220569963U CN203151314U CN 203151314 U CN203151314 U CN 203151314U CN 201220569963 CN201220569963 CN 201220569963 CN 201220569963 U CN201220569963 U CN 201220569963U CN 203151314 U CN203151314 U CN 203151314U
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Abstract
A compulsory circulating evaporation cooling device for a water turbine generator stator busbar has an evaporation cooling circulating loop which is obtained through connecting the following components: a stator busbar (12), a condenser (21), a liquid storage tank (30), a cooler (32), a pump (1), a pressure stabilizing tank (2), a flowmeter (6), a liquid dividing pipe (8), an air collecting pipe (16), a liquid supply main pipe (3), an air outlet pipe (18), a liquid outlet main pipe (27), a main liquid returning pipe (37), a bypass pipe (4) and an electro-hydraulic separating joint. The pump drives cooling medium in the loop to circulate. The stator busbar contains one or more busbar branches. The inlet and the outlet of each parallelly connected busbar branch are respectively connected with the liquid dividing pipe and the air collecting pipe through the electro-hydraulic separating joint and an insulating lead pipe. The busbar branches are connected in parallel. The stator busbar, the pump, the condenser, the cooler, etc. are connected for forming an independent evaporating cooling circulation loop. According to the compulsory circulating evaporation cooling device, a plurality of busbars are combined to unified parallelly connected pipeline, thereby constructing an independent evaporation cooling circulation loop.
Description
Technical field
The present invention relates to a kind of evaporation-cooled device of hydraulic generator stator bus-bar.
Background technology
Progressively put the hydropower station that supporting single-machine capacity is million kilowatt into operation since China in 2010.By the basic law of design of electrical motor as can be known, single-machine capacity is more big, more need rely on cooling technology safely and efficiently.The development trend of gigawatt unit capacity makes that the cooling problem of motor is more outstanding.In generator, the stator bus-bar is extremely important building block, and its cooling effect is closely bound up with the safe operation of motor.Traditional type of cooling of stator bus-bar has two kinds of air cooling, water-cooleds, these two kinds of types of cooling all satisfy bus-bar outstanding more cooling and reliability requirement simultaneously than difficulty, mainly be that the local overheating that water-cooled exists the cooling line leak stopping to cause is burnt the hidden danger of insulation because the cooling effectiveness of air cooling is not high.
Evaporation cooling technique is a kind of New-type electric machine cooling technology of China's independent research, it adopts high insulation, incombustible fluorocarbons liquid as coolant, utilize the gasification latent heat of medium to take away motor heat loss realization cooling, have safe and reliable, environmental protection, characteristics such as efficient, and multiple application modes such as inner-cooled, infiltration type are arranged.Chinese patent 200510011490.6 disclose a kind of should be in the self-loopa evaporation-cooled device of hydraulic generator stator bus-bar etc., this device utilizes the practical structures of hydraulic generator stator bus-bar to realize that the self-powered of evaporative cooling medium in the cooling device circulates.Be subjected to the influence of bus-bar practical structures, it is less from drive to circulate, and operating pressure is lower, if bus-bar is long, may cause the superheating phenomenon of medium in the bus-bar.If the bus-bar form is comparatively complicated, then be unfavorable for setting up stable evaporative cooling self-loopa.Bus bar way amount is numerous in the actual hydraulic generator, and actual bus structures presents complicated multifarious characteristics at length, form and height, therefore more at quantity, length bus-bar long or that form is comparatively complicated is set up unified self-loopa circulation loop of vaporization cooling and is had certain degree of difficulty, the circular flow of medium can be subjected to the influence of pipe range, factor such as tubular and reduce, thereby influences the motor cooling effect.
Summary of the invention
The circulation power that the objective of the invention is to overcome prior art is little, bus-bar long at a large amount of length or that form is complicated is difficult for setting up the shortcoming of unified self-loopa circulation loop of vaporization cooling, and a kind of forced circulation evaporation-cooled device of hydraulic generator stator bus-bar is provided.This device adopts the inner-cooled evaporation cooling technique, select for use high dielectric as coolant, have the advantages such as efficient, environmental protection of internal water cooling, cancelled the necessary pure water treatment system of internal water cooling simultaneously, avoided internal water cooling to cause the hidden danger of great electric accident because of leakage.Self-loopa vapor cooling system with respect to bus-bar, because the actuating force of forced circulation evaporation-cooled device comes from pump, power has significantly lifting and continues and stablize, thereby realized bigger circular flow, therefore can be more complicated at form, the bus-bar that pipe range is longer and more, set up unified independent circulation loop of vaporization cooling, reduced the quantity in independent loops loop, cancelled the gas-liquid separation device in the self-loopa vapor cooling system of bus-bar simultaneously, simplified the integral cooling device structure, save manufacturing cost, reduced installation and maintenance maintenance amount, improved operation stability.
The forced circulation evaporation-cooled device of hydraulic generator stator bus-bar of the present invention, its critical piece and member comprise stator bus-bar, separating tube, discharge, condenser, cooler, fluid reservoir, vacuum tank, pump, feed flow is responsible for, and returns liquid and is responsible for escape pipe, total liquid back pipe, electric liquid separating joint, flowmeter, bypass pipe, insulation skirt and seal nipple etc.
The important composition parts that described stator bus-bar is hydraulic generator are again apparatus of the present invention component parts.
Described feed flow is responsible for delivery side of pump, vacuum tank and flowmeter are connected in series and are connected to first seal nipple, first seal nipple links to each other with separating tube, the separating tube order is through second seal nipple, the Imported Insulation skirt, import electricity liquid separating joint, the stator bus-bar, export electric liquid separating joint, outlet insulation skirt and the 3rd seal nipple are connected to discharge, discharge links to each other with the 4th seal nipple, the 4th seal nipple links to each other with condenser by escape pipe, condenser is connected to fluid reservoir by returning the liquid person in charge, fluid reservoir links to each other with cooler, cooler is connected to the entrance of pump by total liquid back pipe, has connected and composed evaporative cooling circulation major loop with upper pipeline; Described delivery side of pump is connected to fluid reservoir by bypass pipe, constitutes the bypass branch road, and electric control valve is installed on the bypass pipe.Evaporative cooling circulation major loop and bypass branch road constitute circulation loop of vaporization cooling.Inject evaporative cooling medium in the circulation loop of vaporization cooling.The pump of installing in the circulation loop of vaporization cooling provides actuating force for circulating of coolant.Feed flow in the evaporative cooling circulation major loop is equipped with flowmeter on being responsible for.The cover top portion of condenser is equipped with first pressure sensor, pressure switch, first electromagnetically operated valve, and first detecting electrode of secondary cooling water leak detection and alarm.The cover top portion of cooler is equipped with second detecting electrode of the 3rd pressure sensor, second electromagnetically operated valve and secondary cooling water leak detection and alarm.The inside of condenser and cooler all is equipped with sealing metal tube bank, the intrafascicular secondary cooling water that all circulates of sealed metal tube.Settled electric control valve on the bypass pipe, can be by the aperture of adjuster valve, the control bypass flow.
Described stator bus-bar comprises one or more bus-bar branch roads, the entrance of each bus-bar branch road links to each other with separating tube by import electricity liquid separating joint, Imported Insulation skirt and second seal nipple, and the outlet of each bus-bar branch road links to each other with discharge by the electric liquid separating joint of outlet, outlet insulation skirt and the 3rd seal nipple.If the stator bus-bar comprises a plurality of bus-bar branch roads, then the connected mode of a plurality of bus-bar branch roads is in parallel.Each bus-bar props up the one or more single bus-bars of route to be formed, and each single bus-bar is in length, identical or have difference on form and the height.
Described condenser is mainly used in gas phase or the gas-liquid two-phase coolant in the condensation evaporation cooling circuit.Metal sealing cooling tube bundle is equipped with in condenser inside, the secondary cooling water that circulates in the tube bank, and tube bank outer flow ventilation phase or gas-liquid two-phase coolant are with the purpose that realizes that circulation loop of vaporization cooling and external environment condition are carried out heat exchange.The pressure sensor that is communicated to the condenser inner space, pressure switch and electromagnetically operated valve are housed on the shell of condenser.Condenser is equipped with the detecting electrode of secondary cooling water leak detection and alarm, and detecting electrode is inserted into the bottom in the condenser cavity, and draws outside the housing with seal nipple, is connected with external circuit.
Described cooler is mainly used in cooling off the high-temperature liquid-phase coolant in the circulation loop of vaporization cooling, makes it reach certain degree of subcooling, is conducive to strengthen the cooling effect of bus-bar so on the one hand, is conducive to the heat radiation of pump on the other hand, guarantees the normal operation of pump.Metal sealing cooling tube bundle is equipped with in cooler inside, the secondary cooling water that circulates in the tube bank, and the outside circulation of tube bank liquid cooling medium is with the purpose that realizes that circulation loop of vaporization cooling and external environment condition are carried out heat exchange.Electromagnetically operated valve and pressure sensor are housed on the shell of cooler.Cooler is equipped with the detecting electrode of secondary cooling water leak detection and alarm, and detecting electrode is inserted into the bottom in the cooler cavity, and draws outside the housing with seal nipple, is connected with external circuit.
The volume of described fluid reservoir is the cumulative volume that circulation loop of vaporization cooling moves about 1 ~ 10 minute required medium, when the pipeline in the circulation loop of vaporization cooling takes place to leak, guarantee within a certain period of time still can realize effectively cooling to bus-bar, reserved certain hour simultaneously in order to malfunction is judged and taked the respective handling measure.Fluid reservoir links to each other with the magnetic float liquid level gauge by connecting short tube, realizes the detection of the inner liquid level of fluid reservoir.Pressure sensor is equipped with in the lower end of liquid level gauge, realizes the monitoring of fluid reservoir pressure.
Described vacuum tank is installed on feed flow and is responsible for, and the import of vacuum tank links to each other with delivery side of pump, and the outlet of vacuum tank is connected to flowmeter.The internal structure of vacuum tank under go out on advancing, namely by the coolant of pump output, the person in charge is delivered to vacuum tank through feed flow, entrance by the vacuum tank below enters in the jar, discharged by the outlet of top then, through the buffering of vacuum tank, eliminate the strong pulsation phenomenon of pump conveying cooling medium consumption like this, guaranteed the stationarity of media flow.
Described feed flow is responsible for the flowmeter of upward installing and is used for the flow status of monitoring evaporative cooling circulation major loop in real time, can be the judgement of medium circulation flow regime auxiliary foundation is provided.
The evaporative cooling medium that uses in apparatus of the present invention is high insulating property, low boiling, and physical and chemical performance is stable, reaches the medium of environmental requirement, as VxF4310 etc.
Hydraulic generator stator bus-bar forced circulation evaporation-cooled device of the present invention is compared with existing internal water cooling technology, has following characteristics and advantage:
1) fail safe is higher.Because hydraulic generator stator bus-bar forced circulation evaporation-cooled device has adopted the coolant of high insulation, stop the internal water cooling unit and leaked the generation that causes short circuit accident because of water, avoided bus-bar internal copper ion and the compound of water oxygen ion in the internal water cooling unit to cause the hidden danger of stream obstruction simultaneously.
2) initial cost and operating cost are lower.Hydraulic generator stator bus-bar forced circulation evaporation-cooled device has been cancelled the required water treatment system of internal water cooling unit, has simplified apparatus structure.
Hydraulic generator stator bus-bar forced circulation evaporation-cooled device of the present invention is compared with existing self-loopa evaporation cooling technique, has following characteristics and advantage:
1) circulation actuating force is stronger.The self-loopa evaporation cooling technique utilizes the real electrical machinery structure to form self drive, influenced by the bus-bar practical structures, actual actuating force is less, and hydraulic generator stator bus-bar forced circulation evaporation-cooled device adopts pump to provide actuating force for circulating of evaporative cooling medium, can be equipped with the higher pump of lift according to the actual requirements, actuating force is able to bigger lifting, simultaneously can be under the prerequisite that does not influence cooling effect, in evaporative cooling circulation major loop, flowmeter is installed, is convenient to the real-time monitoring of flow.
2) the manufacturing installation cost is lower.Because the circulation actuating force of hydraulic generator stator bus-bar forced circulation evaporation-cooled device is higher, can be at the bus-bar of more different shape, foundation contains the unified circulation loop of vaporization cooling of longer, the more bus-bar branch road of branch road length, thereby simplified the integral cooling device structure greatly, saved manufacturing and installation cost.
3) evaporative cooling medium circulate more stable.Self drive in the self-loopa evaporation-cooled device is comparatively responsive to self influencing of its circulation circuit, thereby flow always is in the matching process of self drive and total resistance, certain fluctuation can appear in flow, and the actuating force of the pump in the hydraulic generator stator bus-bar forced circulation evaporation-cooled device is comparatively stable, thereby flow output is more stable, amplitude of variation is littler, thereby makes temperature fluctuation reduce.
Description of drawings
Fig. 1 is principle of the invention figure.Among the figure, 1 pump, 2 vacuum tanks, 3 feed flows are responsible for, 4 bypass pipes, 5 electric control valves, 6 flowmeters, 7 first seal nipples, 8 separating tubes, 9 second seal nipples, 10 Imported Insulation skirts, 11 imports electricity liquid separating joint, 12 stator bus-bars, the electric liquid separating joint of 13 outlets, 14 outlet insulation skirts, 15 the 3rd seal nipples, 16 discharges, 17 the 4th seal nipples, 18 escape pipes, 19 intermediate insulation tube connectors, 20 middle electric liquid separating joints, 21 condensers, the tube bank of 22 first sealing metals, first detecting electrode of 23 secondary cooling water leak detection and temperature alarming instrument, 24 pressure switches, 25 first electromagnetically operated valves, 26 first pressure sensors, 27 times liquid is responsible for, 28 magnetic float liquid level gauges, 29 second pressure sensors, 30 fluid reservoirs, 31 connect short tube, 32 coolers, the tube bank of 33 second sealing metals, 34 second electromagnetically operated valves, 35 the 3rd pressure sensors, second detecting electrode of 36 secondary cooling water leak detection and temperature alarming instrument; 37 total liquid back pipes;
Fig. 2 is the schematic cross section of hydraulic generator stator bus-bar.Among the figure, 1 is the stator bus-bar, and 2 are the outsourcing insulation.
Embodiment
Figure 1 shows that the forced circulation evaporation-cooled device of hydraulic generator stator bus-bar.
The present invention includes hydraulic generator stator bus-bar 12, separating tube 8, discharge 16, condenser 21, cooler 32, fluid reservoir 30, vacuum tank 2, pump 1, flowmeter 6, bypass pipe 4, feed flow is responsible for 3, escape pipe 18, return liquid and be responsible for 27, total liquid back pipe 37, electric liquid separating joint, insulation skirt and seal nipple etc.
The outlet of described pump 1 is responsible for 4 by feed flow, be connected to flowmeter 6 through vacuum tank 2, flowmeter 6 is connected to first seal nipple 7, first seal nipple 7 links to each other with separating tube 8, separating tube 8 orders are through second seal nipple 9, Imported Insulation skirt 10, import electricity liquid separating joint 11, stator bus-bar 12, export electric liquid separating joint 13, outlet insulation skirt 14 and the 3rd seal nipple 15 are connected to discharge 16, discharge 16 links to each other with the 4th seal nipple 17, the 4th seal nipple 17 links to each other with condenser 21 by escape pipe 18, condenser 21 is connected to fluid reservoir 30 by returning the liquid person in charge 27, fluid reservoir 30 links to each other with cooler 32, and cooler 32 is connected to the entrance of pump 1 by total liquid back pipe 37.Connected and composed evaporative cooling circulation major loop with upper pipeline.
The outlet of described pump 1 is connected to fluid reservoir 30 by bypass pipe 4, thereby has constituted the bypass branch road.Settled electric control valve 5 on the bypass pipe 4.
Feed flow is responsible on 3 flowmeter 6 is installed in the described evaporative cooling circulation major loop; Inject evaporative cooling medium in the circulation loop of vaporization cooling; The pump of installing in the circulation loop of vaporization cooling 1 provides actuating force for circulating of evaporative cooling medium; The cover top portion of condenser 21 is equipped with first pressure sensor 26, pressure switch 24, the first electromagnetically operated valves 25, and first detecting electrode 23 of secondary cooling water leak detection and alarm; The cover top portion of cooler 32 is equipped with second detecting electrode 36 of the 3rd pressure sensor 35, the second electromagnetically operated valves 34 and secondary cooling water leak detection and alarm; The inside of condenser 21 and cooler 32 all is equipped with sealing metal tube bank, the intrafascicular secondary cooling water that all circulates of sealed metal tube.
Described hydraulic generator stator bus-bar 12 comprises a plurality of bus-bar branch roads, the import of each bus-bar branch road, outlet are respectively by electric liquid separating joint and insulation skirt, link to each other with separating tube 8, discharge 16, adopt between all bus-bar branch roads to be connected in parallel.Each bus-bar props up the one or more single bus-bars of route and forms.
Simple and clear for narrating, be that example is made illustrative to the present invention with the stator bus-bar 12 of the bus-bar branch road that comprises three parallel connections.
The outlet of described pump 1 is connected to bypass line 4 respectively and feed flow is responsible for 3.Electric control valve 5 is installed on the bypass line 4, and the outlet of bypass line 4 is connected to the import of the upper end of fluid reservoir 30.
Described feed flow is responsible on 3 vacuum tank 2 and flowmeter 6 is installed successively, and by first seal nipple 7, is connected to separating tube 8.Containing four single bus-bars in the stator bus-bar 12 is 12a, 12b, and 12c, 12d, they have certain difference at length, form and height, and stator bus-bar 12 is horizontal positioned.Four single bus-bars are 12a, 12b, 12c, 12d, three bus-bar branch roads have been formed by being connected, wherein single bus-bar 12a has constituted a bus-bar branch road 12a-b with after 12b connects by intermediate insulation tube connector 19 and middle electric liquid separating joint 20, and bus- bar 12c and 12d constitute two other bus-bar branch road respectively separately.The entrance of each bus-bar branch road is connected to separating tube 8 through import electricity liquid separating joint 11, Imported Insulation skirt 10 and second seal nipple 9.The outlet of each bus-bar branch road is connected to discharge 16 through the electric liquid separating joint 13 of outlet, outlet insulation skirt 14 and the 3rd seal nipple 15.Discharge 16 is connected to the 4th seal nipple 17.The 4th seal nipple 17 is connected to the cooling space of condenser 21 by escape pipe 18.Lower end outlet and time liquid of condenser 21 are responsible for 27 and are linked to each other.Return liquid and be responsible for 27 and link to each other with the import of fluid reservoir 30 upper ends, fluid reservoir 30 links to each other with magnetic float liquid level gauge 28 by connection short tube 31, and second pressure sensor 29 is installed in the lower end of magnetic float liquid level gauge 28.The outlet of the lower end of fluid reservoir 30 is connected to the entrance of cooler 32, and the outlet of cooler 32 is connected to the entrance of pump 1 by total liquid back pipe 37.
Inject an amount of evaporative cooling medium in the circulation loop of vaporization cooling.
The operation course of work of apparatus of the present invention is as follows: when generator was worked, the evaporative cooling circulation started simultaneously.Pump 1 is responsible for 3 with the liquid phase cools medium by feed flow, through vacuum tank 2, flowmeter 6, and seal nipple 7, separating tube 8, seal nipple 9, Imported Insulation skirt 10 and import electricity liquid separating joint 11 are transported in the stator bus-bar 12.Stator bus-bar 12 heating produces heats, and its inner coolant is because of heat conduction and convection action, absorbs the heat of bus-bar 12 and temperature raises.When medium temperature rose to when the corresponding saturation temperature of ground pressure, the part coolant had produced the gasification phenomenon, formed the mobile coolant of gas-liquid two-phase.The two-phase flow coolant exports insulation skirt 14, the three seal nipples 15 subsequently through the electric liquid separating joint 13 of outlet, and discharge 16 and the 4th seal nipple 17 flow in the escape pipe 18, flow into then and are condensed into the liquid phase cools medium in the condenser 21.Coolant flows out condenser 21 subsequently, flow in the fluid reservoir 30 through returning the liquid person in charge 27.In fluid reservoir 30, the coolant that the coolant of returning from condenser 21 is returned with bypass line 4 mixes mutually, and the liquid phase cools medium flows out fluid reservoir 30 then, enters cooler 32 and further cools.After the liquid phase cools medium leaves cooler 32, get back to pump 1 at last, beginning is circulation next time.The cool cycles process can be along with the variation of bus-bar heat load the position of the evaporating point of corresponding adjustment bus-bar inside, when load increases, the evaporating point reach, the gas-liquid two-phase section increases; When load reduces, move behind the evaporating point, the gas-liquid two-phase section shortens, when load is decreased to certain value, the saturation boiling phenomenon may not can appear in bus-bar inside, only has full liquid phase section or full liquid phase section and subcooled boiling section, relies on single-phase convection heat exchange and Convective Subcooled Boiling Heat Transfer to finish the cooling of bus-bar.
The limit of pressure switch 24 monitoring condenser inner spaces relates to pressure, and when the pressure of condenser 21 overstepped the extreme limit, pressure switch 24 can directly be controlled electromagnetically operated valve 25 and open, thereby reduces the pressure of condenser 21, ensuring equipment safe operation.The 3rd pressure sensor of installing on the cooler 32 35 can be monitored the pressure of cooler 32 inner spaces in real time.Electromagnetically operated valve 34 is installed on the cooler 32, is opened when being used for irritating liquid, with the air of emptying cooler 32 inside.Feed flow is responsible for the inner stream flow that the flowmeter of installing on 3 can be monitored the feed flow person in charge 3 in real time.The magnetic float liquid level gauge 28 that is connected with fluid reservoir 30 can intuitively show the liquid level in the fluid reservoir.Second pressure sensor 29 that install liquid level gauge 28 bottoms, the 3rd pressure sensor 35 that install at first pressure sensor 26 that install at condenser 21 tops and cooler top is given Central Control Room the signal teletransmission jointly.First detecting electrode 23 that is installed in secondary cooling water leak detection on the condenser 21 and alarm be installed in secondary cooling water leak detection on the cooler 32 and second detecting electrode 36 of alarm, give Central Control Room with the signal of telecommunication teletransmission of leaking, send instruction to the device processing of leaking by Central Control Room.
Figure 2 shows that the schematic cross section of hydraulic generator stator bus-bar.Hydraulic generator stator bus-bar 1 is hollow copper tubing or aluminum pipe, and cross sectional shape is annular or polygon annular, and its wall thickness is determined according to the factors such as size by the size of electric current, the current density of selecting for use, mechanical strength and space.The outside of hydraulic generator stator bus-bar 1 is surrounded by insulation 2.
Claims (7)
1. a hydraulic generator stator bus-bar forced circulation evaporation-cooled device is characterized in that described device comprises that hydraulic generator stator bus-bar (12), condenser (21), cooler (32), fluid reservoir (30), vacuum tank (2), pump (1), insulation skirt, electric liquid separating joint, flowmeter (6), separating tube (8), discharge (16), seal nipple, feed flow are responsible for (3), escape pipe (18), time liquid is responsible for (27), total liquid back pipe (37) and bypass pipe (4); Described feed flow is responsible for (3) with the outlet of pump (1), vacuum tank (2) and flowmeter (6) are connected in series and are connected to first seal nipple (7), first seal nipple (7) links to each other with separating tube (8), separating tube (8) order is through second seal nipple (9), Imported Insulation skirt (10), import electricity liquid separating joint (11), stator bus-bar (12), export electric liquid separating joint (13), outlet insulation skirt (14) and the 3rd seal nipple (15) are connected to discharge (16), discharge (16) links to each other with the 4th seal nipple (17), the 4th seal nipple (17) links to each other with condenser (21) by escape pipe (18), condenser (21) is connected to fluid reservoir (30) by returning the liquid person in charge (27), fluid reservoir (30) links to each other with cooler (32), cooler (32) is connected to the entrance of pump (1) by total liquid back pipe (37), has constituted evaporative cooling circulation major loop; The outlet of described pump (1) is connected to fluid reservoir (30) by bypass pipe (4), constitutes bypass branch road (4), and electric control valve (5) is installed on the bypass pipe (4);
Described evaporative cooling circulation major loop and bypass branch road are formed circulation loop of vaporization cooling; Described feed flow is responsible on (3) flowmeter (6) is installed; Inject evaporative cooling medium in the circulation loop of vaporization cooling; Described pump (1) provides actuating force for circulating of evaporative cooling medium; The cover top portion of condenser (21) is equipped with first pressure sensor (26), pressure switch (24), first electromagnetically operated valve (25), and first detecting electrode (23) of secondary cooling water leak detection and alarm; The cover top portion of cooler (32) is equipped with the 3rd pressure sensor (35), second detecting electrode (36) of second electromagnetically operated valve (34) and secondary cooling water leak detection and alarm; The inside of condenser (21) and cooler (32) all is equipped with sealing metal tube bank, the intrafascicular circulation secondary cooling water of sealed metal tube.
2. hydraulic generator stator bus-bar forced circulation evaporation-cooled device according to claim 1, it is characterized in that described hydraulic generator stator bus-bar (12) comprises one or more bus-bar branch roads, adopt between the described bus-bar branch road to be connected in parallel; Each bus-bar props up the one or more single bus-bars of route and forms.
3. hydraulic generator stator bus-bar forced circulation evaporation-cooled device according to claim 2 is characterized in that the import of each described bus-bar branch road is connected to separating tube (8) through import electricity liquid separating joint (11) and Imported Insulation skirt (10) with second seal nipple (9); The outlet of each bus-bar branch road is connected to discharge (16) through outlet electric liquid separating joint (13), outlet insulation skirt (14) and the 3rd seal nipple (15), and discharge (16) is connected to the 4th seal nipple (17); The 4th seal nipple (17) is connected to the cooling space of condenser (21) by escape pipe (18); Lower end outlet and time liquid of condenser (21) are responsible for (27) and are linked to each other; Returning the liquid person in charge (27) links to each other with the import of fluid reservoir (30) upper end.
4. hydraulic generator stator bus-bar forced circulation evaporation-cooled device according to claim 1 is characterized in that in the described evaporative cooling circulation major loop, the outlet of described hydraulic generator stator bus-bar (12) links to each other with condenser (21); The outlet of condenser (21) links to each other with the import of fluid reservoir (30) upper end; The outlet of fluid reservoir (30) links to each other with the entrance of cooler (32); The outlet of cooler (32) links to each other with the entrance of pump (1); The outlet of pump (1) is responsible for through flowmeter (6) by feed flow and is linked to each other with the entrance of vacuum tank (2); The outlet of vacuum tank (2) links to each other with the entrance of described hydraulic generator stator bus-bar (12).
5. hydraulic generator stator bus-bar forced circulation evaporation-cooled device according to claim 1, it is characterized in that the import of described bypass line (4) is connected to the outlet of pump (1), the outlet of bypass line (4) is connected to the import of fluid reservoir (30) upper end, and electric control valve (5) is installed on the bypass line (4).
6. the forced circulation evaporation-cooled device of hydraulic generator stator bus-bar according to claim 1 and 2 is characterized in that hydraulic generator stator bus-bar (12) is hollow copper tubing or aluminum pipe; The cross sectional shape of hydraulic generator stator bus-bar is annular or polygon annular; The outside of hydraulic generator stator bus-bar is surrounded by insulation.
7. hydraulic generator stator bus-bar forced circulation evaporation-cooled device according to claim 1 is characterized in that described fluid reservoir (30) links to each other with magnetic float liquid level gauge (28) by tube connector; Second pressure sensor (29) is equipped with in (28) lower end of liquid level gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220569963 CN203151314U (en) | 2012-10-31 | 2012-10-31 | Compulsory circulating evaporation cooling device for water turbine generator stator busbar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220569963 CN203151314U (en) | 2012-10-31 | 2012-10-31 | Compulsory circulating evaporation cooling device for water turbine generator stator busbar |
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| Publication Number | Publication Date |
|---|---|
| CN203151314U true CN203151314U (en) | 2013-08-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220569963 Withdrawn - After Issue CN203151314U (en) | 2012-10-31 | 2012-10-31 | Compulsory circulating evaporation cooling device for water turbine generator stator busbar |
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| CN (1) | CN203151314U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102969838A (en) * | 2012-10-31 | 2013-03-13 | 中国科学院电工研究所 | Forced circulation evaporation cooling device of hydro-generator stator busbar |
| CN104009588A (en) * | 2014-06-18 | 2014-08-27 | 东方电气集团东方电机有限公司 | Evaporative cooling system for vertical shaft motor |
-
2012
- 2012-10-31 CN CN 201220569963 patent/CN203151314U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102969838A (en) * | 2012-10-31 | 2013-03-13 | 中国科学院电工研究所 | Forced circulation evaporation cooling device of hydro-generator stator busbar |
| CN104009588A (en) * | 2014-06-18 | 2014-08-27 | 东方电气集团东方电机有限公司 | Evaporative cooling system for vertical shaft motor |
| CN104009588B (en) * | 2014-06-18 | 2016-07-13 | 东方电气集团东方电机有限公司 | Vertical shaft motor evaporative cooling system |
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