CN104009588B - Vertical shaft motor evaporative cooling system - Google Patents
Vertical shaft motor evaporative cooling system Download PDFInfo
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- CN104009588B CN104009588B CN201410271259.XA CN201410271259A CN104009588B CN 104009588 B CN104009588 B CN 104009588B CN 201410271259 A CN201410271259 A CN 201410271259A CN 104009588 B CN104009588 B CN 104009588B
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- 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
- H02K9/193—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil with provision for replenishing the cooling medium; with means for preventing leakage of the cooling medium
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- 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
- H02K9/20—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil wherein the cooling medium vaporises within the machine casing
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- 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
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/28—Cooling of commutators, slip-rings or brushes e.g. by ventilating
Abstract
A kind of vertical shaft motor evaporative cooling system, including vacuum pump, gland steam exhauster, evaporation-cooled device and liquid supplying and draining device, liquid supplying and draining device includes the total tank of liquid storage, transition fluid reservoir, connecting tube and supplies liquid header, transition fluid reservoir bottom is connected to first for drain line and second for drain line, first is connected by connecting tube for drain line with second for drain line, and second for being provided for positive displacement pump and the total liquid back pipe connected with for liquid header in drain line；Evaporation-cooled device includes balance pipe, the first condenser, stator bar cooling branch road and collector ring cooling branch road, stator bar cooling branch road and first connects for drain line, collector ring cooling branch road and second connects for drain line, balance pipe is connected on the first condenser, and be connected with vapour-recovery unit by gland steam exhauster, vacuum pump is connected with gland steam exhauster.The first feed flow that the present invention is evaporation-cooled device provides two kinds of feed liquid ways, it is possible to reduce the loss of cooling medium in evaporative cooling system.
Description
Technical field
The present invention relates to motor device, particularly relate to a kind of vertical shaft motor evaporative cooling system comprising evaporation-cooled device, liquid supplying and draining device and exhaust recovery device.
Background technology
Along with improving constantly of motor single-machine capacity, the thermic load of motor is also significantly increased, and causes winding, the temperature rise of collector ring and each position temperature difference to increase therefrom.Therefore, reduce motor winding, collector ring temperature rise and improve the uniformity of Temperature Distribution, to the reliability service of large-size machine it is critical that.
At present, the cooling technology of large-size machine generally comprises the technology such as gas cooling, water-cooled, evaporative cooling, adopt transpiration-cooled effect preferably, the needs that different load runs can be better adapted to, gas can be met and cool down the capacity requirement reached, the problem that water-cooling system cost is high and causes hollow conductor to block can be overcome.Evaporation cooling technique is to coordinate, by evaporation-cooled device, monitoring system, liquid supplying and draining device, exhaust recovery device etc., the cooling realizing motor, and wherein evaporation-cooled device and liquid supplying and draining device have following prior art respectively:
As Chinese patent " 200520036095.9 " discloses a kind of evaporation cooling combined cycle device of hydraulic generator stator, its publication date is December in 2006 27, stator winding heater that its technical scheme includes being soaked with evaporative medium and carry out the condenser system of heat exchange with cooling medium steam, also include the stator collector ring heater being soaked with evaporative medium, the first collector tube is passed through in one end of described stator winding heater, first liquid back pipe is connected with bottom condenser, its other end and the connection of first total dry pipe, first total dry pipe connects with the top of condenser again through the first dry pipe；One end of described stator collector ring heater is connected with bottom condenser by the second collector tube, the second liquid back pipe, and its other end and second total dry pipe connect, and second total dry pipe connects with the top of condenser again through the second dry pipe.
As China Patent No. " 200910091705.8 " discloses the liquid supplying and draining device of a kind of evaporating and cooling system of water wheel generator stator, its publication date is on 02 03rd, 2010, and its technical scheme includes feed flow branch road and discharge opeing branch road.Feed flow branch road includes fluid reservoir, supplying valve, solution feed pump, transition tank, confession/draining solenoid valve；The collector tube of fluid reservoir, supplying valve, solution feed pump, transition tank, confession/draining solenoid valve and generator unit stator evaporative cooling system is linked in sequence successively according to media flow direction, and solution feed pump is in the lowest point of described liquid supplying and draining device.In discharge opeing branch road, the collector tube of generator unit stator evaporative cooling system, confession/draining solenoid valve, transition tank, positive displacement pump, check-valves, tapping valve, fluid reservoir are linked in sequence successively according to media flow direction, and positive displacement pump is in the lowest point of whole device；Power supply and the control of whole device are provided by supply and discharge hydraulic power/switch board.
It is the prior art of representative in conjunction with above-mentioned two patent document, in actual use, however it remains following defect: one, above-mentioned liquid supplying and draining device only has a liquid feeding pipeline, and feed liquid way is single, and when solution feed pump breaks down, will cause can not feed flow；Further, owing to stator winding heater is different with the position of collector ring heater, it is necessary to the amount of cooling medium is also different, single feed liquid way can extend the feed flow time to stator winding heater and collector ring heater, causes that production efficiency is low.Two, owing to the pressure in liquid feeding pipeline is consistent with ambient pressure, therefore after first feed flow completes, evaporation-cooled device there is also air, evaporative cooling system is caused to set up the self-loopa time longer, and in running, need repeatedly to start for a long time exhaust recovery device, the pressure of evaporative cooling system just can be made to reach service requirement.
Additionally, condenser in above-mentioned patent is operationally, steam contacts with cooling tube, in the outer surface generation heat exchange of cooling tube and be aggregated into liquid film, but due to the capillary effect of liquid medium, the liquid film that condensation is formed will not separate with cooling tube outer surface immediately, causes that steam is low with the heat exchange efficiency of cooling tube and condensation effect is poor.In order to solve the above-mentioned technical problem of condenser, a kind of efficient pair of cooling pipe double tube sheet condenser disclosed in prior art, its patent No. is " 201220731998.9 ", its publication date is on 08 21st, 2013, this patent can pass through breaking of the sheet-shaped helical tooth quickening condensate film on outer tube outer wall with sawtooth, but under the capillary effect of liquid medium, the speed of separating out of condensed fluid is still relatively slow, still results in condensation effect difference and condensation efficiency is low；Further, being proven, in condensation process, the condensing rate of steam is very high, and this results in can accumulate a large amount of condensed fluid bottom condenser, it is easy to flood the cooling tube bottom condenser, thus reducing the utilization rate of condenser.And steam is directly entered the structure of cylinder one end by air inlet pipe so that the pressure in each region of inner barrel has difference.
Summary of the invention
It is an object of the invention to overcome the above-mentioned problems in the prior art and risk, make up the deficiencies in the prior art, vertical shaft motor evaporative cooling system is provided, the present invention can solve the problem that techniques below problem: 1, can provide two kinds of feed liquid ways for the first feed flow of evaporation-cooled device, when one of which feed liquid way breaks down, standby mode can be used to continue feed flow, it is ensured that stablize feed flow；2, respectively stator bar heater and collector ring heater can be provided feed flow branch road, and two feed flow branch roads can to stator winding heater and collector ring heater feed flow simultaneously；3, after first feed flow, the pressure in evaporation-cooled device just can reach operating pressure requirement, and in running, the number of starts of exhaust recovery device is few, it is possible to reduces the loss of cooling medium in evaporative cooling system, and then reduces operating fluid infusion number of times.
For achieving the above object, the technical solution used in the present invention is as follows:
Vertical shaft motor evaporative cooling system, it is characterized in that: include vacuum pump, gland steam exhauster, evaporation-cooled device, liquid supplying and draining device and vapour-recovery unit, described liquid supplying and draining device includes the total tank of liquid storage, transition fluid reservoir, connecting tube and confession liquid header, described transition fluid reservoir bottom is connected to and supplies the first of discharge opeing supply drain line and supply drain line for evaporation-cooled device for the second of discharge opeing for evaporation-cooled device, described first is connected by connecting tube for drain line with second for drain line, described second for being provided for positive displacement pump and the total liquid back pipe connected with for liquid header in drain line, described one end for liquid header connects for drain line with first, the other end connects with the total tank of liquid storage；Described evaporation-cooled device includes balance pipe, first condenser, the stator bar cooling branch road being connected with the first condenser and the collector ring cooling branch road being connected with the first condenser, described stator bar cooling branch road and first connects for drain line, described collector ring cooling branch road and second connects for drain line, described balance pipe is connected on the first condenser, and be connected with vapour-recovery unit by gland steam exhauster, described vacuum pump is connected with gland steam exhauster, described connecting tube and first is arranged on between liquid header and stator bar cooling branch road for drain line junction point, described connecting tube and second is arranged on between positive displacement pump and collector ring cooling branch road for drain line junction point.
Described stator bar cooling branch road includes the first liquid collecting endless tube, stator bar heater, the first collecting ring pipe, the first liquid back pipe and dry pipe, one end of stator bar heater passes sequentially through the first collecting ring pipe and dry pipe and the first condenser connects, the other end is connected for drain line by the first liquid collecting endless tube and first, and the first liquid back pipe is arranged between the first condenser and the first liquid collecting endless tube；Described collector ring cooling branch road includes the second liquid collecting endless tube, collector ring heater, the second collecting ring pipe, the second liquid back pipe and dry pipe, one end of collector ring heater passes sequentially through the second collecting ring pipe and dry pipe and the first condenser connects, the other end is connected for drain line by the second liquid collecting endless tube and second, and the second liquid back pipe is arranged between the first condenser and the second liquid collecting endless tube.
Being connected to the first liquidometer on described first liquid collecting endless tube, described second liquid collecting endless tube is connected to the second liquidometer, the top of described first liquidometer and the second liquidometer is all connected with balance pipe, at least provided with the valve one of with air communication on balance pipe.
Described vapour-recovery unit includes air pump, the second condenser, filter, catch box and water tank, the inlet end of described air pump is connected with gland steam exhauster, outlet side is connected with the second condenser, described second condenser is connected with water tank by filter, and described catch box is connected with the second condenser and filter respectively.
The top of the total tank of described liquid storage is provided with valve 16, and sidewall is provided with the 4th liquidometer, and bottom is provided with scroll wheel and the discharging tube one being connected with for liquid header, and discharging tube one is provided with valve 17；Described one end for liquid header is provided with valve 18, and the other end is provided with valve 14；Described transition fluid reservoir is connected to discharging tube two, valve the seven and the 3rd liquidometer, discharging tube two is provided with valve six.
One end of described gland steam exhauster is provided with valve five, and the other end is provided with valve two, and the gland steam exhauster between valve five and valve two is provided with valve three and electromagnetic valve, and electromagnetic valve is in parallel with valve three；Described vacuum pump is connected with exhaustor by valve four.
Described first arranges valve 13 and valve 15 in drain line, and described valve 13 and valve 15 are separately positioned on the both sides supplying drain line junction for liquid header and first；The two ends of described second confession drain line are respectively arranged with valve eight and valve ten, and described confession positive displacement pump is arranged between valve eight and valve ten；Described total liquid back pipe is arranged on for positive displacement pump and supplies between liquid header, and is provided with valve nine on total liquid back pipe；It is provided with valve 11 between described first liquid collecting endless tube and connecting tube, between described second liquid collecting endless tube and connecting tube, is provided with valve 12.
Described transition fluid reservoir is arranged on above or below the total tank of liquid storage.
Described first condenser includes cylinder, is provided with many cooling tubes in described cylinder, and the outer surface of described cooling tube is provided with the coating for making condensed fluid separate with cooling tube.
Described coating is made up of politef, Kynoar, silane Organic substance or ceramic material, and its thickness is 1 μm of 0.5mm.
Described cooling tube is monolayer cooling tube or double-deck cooling tube, and during for double-deck cooling tube, described coating is arranged on the outer pipe surface of double-deck cooling tube.
Described cooling tube is pipe or finned pipe, during for finned pipe, described fin is provided with coating.
Described cylinder top is provided with steam inlet and gas bag, and described steam inlet communicates with gas bag, and described gas bag communicates with cylinder lumen.
Described cylinder bottom is provided with hole for back flow, is provided with the liquid bag for collecting condensed fluid in described cylinder, and described hole for back flow communicates with liquid bag.
Employing it is an advantage of the current invention that:
One, in the present invention, when feed flow that evaporation-cooled device is first, both the confession direct feed flow of positive displacement pump below transition fluid reservoir can have been passed through, the air in evaporation-cooled device pipeline is extracted in advance out also by vacuum pump, make the pressure in pipeline less than ambient pressure, utilize pressure differential to be pressed in evaporation-cooled device by the cooling medium in total for liquid storage tank.And, when adopting vacuum-pump liquid-supplying, certain vacuum is formed in feed flow front evaporator chiller, after cooling medium supply puts in place, owing to the air in liquid feeding pipeline is little, not only contribute to accelerate first liquid supply speed, also help the quick foundation of whole evaporation-cooled device self-loopa, the pressure in evaporation-cooled device is made to meet the requirement running on low pressure conditions from the beginning, start it is thus possible to few or do not start vapour-recovery unit, it is thus possible to avoid the loss of cooling medium in running, and then can greatly reduce in running to the feed flow number of times of evaporation-cooled device and liquid supply rate.On the other hand, even if breaking down for positive displacement pump, it is also possible to adopting vacuum pump to carry out first feed flow, both feed liquid ways coordinate, it is ensured that the stability of first feed flow, be conducive to improving production efficiency.Additionally, by coordinating of respective valves and pipeline, stator bar individually can be cooled down branch road feed flow for drain line by first, collector ring individually can be cooled down branch road feed flow for drain line by second, two-way coordinates simultaneously to evaporation-cooled device feed flow, feed flow time can be greatly reduced for discharge opeing branch road.With China Patent No. " 200910091705.8 " for compared with the prior art of representative, the present invention is under reducing by a premise for positive displacement pump, first feed flow can not only be realized, additionally it is possible to provide standby feed liquid way for first feed flow, effectively ensured the stable operation of whole evaporative cooling system.
Two, in the present invention, connecting tube one end is connected to second in drain line, the other end is connected to the first liquid collecting endless tube and for the structure between liquid header, both first had been made for drain line, stator bar can to cool down branch road and collector ring cooling branch road feed flow and fluid infusion for drain line and second respectively, also first is made for drain line, stator bar can to cool down branch road and collector ring cooling branch road feed flow and fluid infusion for drain line or second respectively, feed flow fluid infusion mode is varied, has effectively ensured the reliability of evaporative cooling system.
Three, in the present invention, respectively the amount of cooling medium in evaporation-cooled device heater can be carried out monitor in real time by the first liquidometer and the second liquidometer, it is ensured that liquid supplying and draining device is to the real-time fluid infusion of evaporation-cooled device heater.It addition, when vacuum pump or for positive displacement pump break down all can not feed flow that evaporation-cooled device is first time, the valve manual feed flow of a pair evaporation-cooled device can be passed through, it is to avoid affect production efficiency.
Four, in the present invention, described vapour-recovery unit includes air pump, the second condenser, filter, catch box and water tank, the inlet end of described air pump is connected with gland steam exhauster, outlet side is connected with the second condenser, described second condenser is connected with water tank by filter, and described catch box is connected with the second condenser and filter respectively.This structure can reclaim the steam medium discharged in evaporation-cooled device effectively, compared with prior art, by increasing filter, it is possible to avoid medium steam to enter air to greatest extent.
Five, in the present invention, the total tank of liquid storage is connected with liquid header by the discharging tube one with valve 17, and the total tank bottom of liquid storage is provided with the structure of scroll wheel, make the total tank of liquid storage can continue, to other evaporative cooling system feed flow, to improve the utilization rate of the total tank of liquid storage after to one of them evaporative cooling system feed flow.Again owing to the price of the total tank of liquid storage is much more expensive, therefore, the shared total tank of liquid storage of multiple evaporative cooling systems can also reduce production cost.
Six, in the present invention, one end of described gland steam exhauster is provided with valve five, the other end is provided with valve two, gland steam exhauster between valve five and valve two is provided with valve three and electromagnetic valve, electromagnetic valve is in parallel with valve three, this structure ensure that when electromagnetic valve breaks down, and can realize steam discharge by manual control valve three.
Seven, in the present invention, described transition fluid reservoir is arranged on above or below the total tank of liquid storage, and this structure makes transition fluid reservoir can be arranged on different terrain, is conducive to the mounting arrangement of whole evaporative cooling system.
Eight, in the present invention, in whole evaporative cooling system, it is proven, by being mutually combined of valve one to valve 18, can produce multiple specific for draining mode, namely when a certain confession draining mode breaks down, it is possible to adopt other standby mode feed flow, it is ensured that the stable operation of whole evaporative cooling system.Further, since the fluid infusion in the first feed flow of evaporation-cooled device, running or discharge opeing etc. are had multiple for draining mode, this allows for people can multiple best for draining mode for choosing in draining mode, it is ensured that in hgher efficiency for discharge opeing.
Nine, in the present invention, in the first condenser, can be accelerated the separating rate of condensed fluid and cooling tube by coating, the condensate film that steam and cooling tube generation heat exchange generate can depart from rapidly from the outer surface of cooling tube, is conducive to improving condensation effect and condensation efficiency；With China Patent No. " 201220731998.9 " for compared with the prior art of representative, the present invention arranges one layer of coating on the outer surface of outer tube and just can accelerate condensate film and depart from the speed of cooling tube, it is thus achieved that better cooling effect.
11, in the present invention, the coating being made up of politef, Kynoar, silane Organic substance or ceramic material, can with cooling tube outer surface strong bonded, again will not with coolant generation chemical reaction, also there is the characteristic of low surface tension simultaneously, be conducive to further speeding up condensate film and depart from the speed of cooling tube.Additionally, if the thickness of described coating is less than 1 μm, the speed on condensate film disengaging cooling tube surface will be reduced, thus weakening the heat transfer effect of cooling tube, if and the thickness of described coating is more than 0.5mm, the thermal resistance causing cooling tube outer surface being dramatically increased again, not only can be obviously reduced the heat exchange of steam and cooling tube, the manufacture difficulty and the cost that also result in condenser raise.Therefore, the thickness of described coating is set to 1 μm of 0.5mm, can guarantee that cooling tube outer surface thermal resistance does not dramatically increase, and can significantly improve condensate film and depart from the speed of cooling tube, by manufacture difficulty and cost control in the reasonable scope, can adapt to the needs of different occasion.
12, in the present invention, described cooling tube can be monolayer cooling tube, it is also possible to for double-deck cooling tube, it is possible to for the condenser of different size, the scope of application is wider.When adopting double-deck cooling tube, it is also possible to arrange gap between two-layer pipe, if the cooling medium of inner tube leaks, the detecting device that can pass through to be arranged in gap detects, can avoid the cooling medium leakage pollution evaporative cooling medium of inner tube to greatest extent.
13, in the present invention, described cooling tube is pipe or finned pipe, during for finned pipe, described fin is provided with coating, can be increased the contact area of steam and outer tube by fin, thus improving rate of cooling.
14, in the present invention, the gas bag arranged on cylinder top so that the steam entering condenser can be dispersed to rapidly the regional of condenser inner chamber, has balanced condenser internal pressure effect, be conducive to improving the utilization rate of condensation effect and condenser.
15, in the present invention, cylinder bottom arrange one be specifically designed to store condensed after the liquid bag of condensed fluid that obtains, desirably prevent lower floor's cooling tube liquid that is condensed and flood and make condenser utilization rate reduce.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of condenser in the present invention；
Fig. 3 is the A direction view of Fig. 2；
Fig. 4 is the A A sectional view of Fig. 2；
nullBeing labeled as in figure: 1、Balance pipe，2、Stator bar heater，3、Collector ring heater，4、First collecting ring pipe，5、Second collecting ring pipe，6、Dry pipe，7、First liquid collecting endless tube，8、Second liquid collecting endless tube，9、First liquid back pipe，10、Second liquid back pipe，11、Insulation drainage tube，12、First condenser，13、First liquidometer，14、Second liquidometer，15、Gland steam exhauster，16、Vacuum pump，17、Air pump，18、Second condenser，19、Filter，20、Catch box，21、Water tank，22、Machine is cheated，23、Valve one，24、Valve two，25、Valve three，26、Electromagnetic valve，27、Valve four，28、Valve five，29、The total tank of liquid storage，30、Transition fluid reservoir，31、For positive displacement pump，32、Valve six，33、Valve seven，34、3rd liquidometer，35、Valve eight，36、Total liquid back pipe，37、Valve nine，38、For liquid header，39、Second for drain line，40、Valve ten，41、Connecting tube，42、Discharging tube one，43、Discharging tube two，44、Valve 11，45、Valve 12，46、First for drain line，47、Valve 13，48、Valve 14，49、Valve 15，50、Scroll wheel，51、Valve 16，52、Valve 17，53、Valve 18，54、4th liquidometer，55、Gas bag，56、Liquid bag，57、Cylinder，58、End cap，59、Cooling tube，60、Cooling water inlet and outlet connectors，61、Steam inlet，62、Hole for back flow，63、Interface.
Detailed description of the invention
Embodiment 1
Vertical shaft motor evaporative cooling system, including vacuum pump 16, gland steam exhauster 15, evaporation-cooled device, liquid supplying and draining device and vapour-recovery unit, described liquid supplying and draining device includes the total tank 29 of liquid storage, transition fluid reservoir 30, connecting tube 41 and confession liquid header 38, described transition fluid reservoir 30 bottom is connected to and supplies the first of discharge opeing supply drain line 46 and supply drain line 39 for evaporation-cooled device for the second of discharge opeing for evaporation-cooled device, described first is connected by connecting tube 41 for drain line 39 with second for drain line 46, described second for being provided for positive displacement pump 31 and the total liquid back pipe 36 connected with for liquid header 38 in drain line 39, described one end for liquid header 38 connects for drain line 46 with first, the other end connects with the total tank 29 of liquid storage；Described evaporation-cooled device includes balance pipe 1, first condenser 12, the stator bar cooling branch road being connected with the first condenser 12 and the collector ring cooling branch road being connected with the first condenser 12, described stator bar cooling branch road and first connects for drain line 46, described collector ring cooling branch road and second connects for drain line 39, described balance pipe 1 is connected on the first condenser 12, and be connected with vapour-recovery unit by gland steam exhauster 15, described vacuum pump 16 is connected with gland steam exhauster 15, described connecting tube 41 and first is arranged on between liquid header 38 and stator bar cooling branch road for drain line 46 junction point, described connecting tube 41 and second is arranged on between positive displacement pump 31 and collector ring cooling branch road for drain line 39 junction point.
The preferred implementation of the present embodiment is, described stator bar cooling branch road includes the first liquid collecting endless tube 7, stator bar heater, the first collecting ring pipe the 4, first liquid back pipe 9 and dry pipe 6, one end of stator bar heater passes sequentially through the first collecting ring pipe 4 and dry pipe 6 and is connected with the first condenser 12, the other end is connected for drain line 46 with first by the first liquid collecting endless tube 7, and the first liquid back pipe 9 is arranged between the first condenser 12 and the first liquid collecting endless tube 7；Described collector ring cooling branch road includes the second liquid collecting endless tube 8, collector ring heater the 3, second collecting ring pipe the 5, second liquid back pipe 10 and dry pipe 6, one end of collector ring heater 3 passes sequentially through the second collecting ring pipe 5 and dry pipe 6 and is connected with the first condenser 12, the other end is connected for drain line 39 with second by the second liquid collecting endless tube 8, and the second liquid back pipe 10 is arranged between the first condenser 12 and the second liquid collecting endless tube 8.Wherein, stator bar heater is connected with the first collecting ring pipe 4 and the first liquid collecting endless tube 7 respectively through insulation drainage tube 11, and described collector ring heater 3 is connected with the second collecting ring pipe 5 and the second liquid collecting endless tube 8 respectively through insulation drainage tube 11.
Further, described first liquid collecting endless tube 7 is connected to the first liquidometer 13, described second liquid collecting endless tube 8 is connected to the second liquidometer 14, and the top of the first liquidometer 13 and the second liquidometer 14 is all connected with balance pipe 1, at least provided with the valve 1 of with air communication on balance pipe 1.In actual use, the top of the first liquidometer 13 and the second liquidometer 14 is indirectly to be connected with the first condenser 12, when vacuum pump 16 and confession positive displacement pump 31 break down when all evaporation-cooled device can not be carried out first feed flow, one 23 pairs of manual feed flows of evaporation-cooled device of valve can be passed through.
The another preferred implementation of the present embodiment is, described vapour-recovery unit includes air pump the 17, second condenser 18, filter 19, catch box 20 and water tank 21, the inlet end of described air pump 17 is connected with gland steam exhauster 15, outlet side is connected with the second condenser 18, described second condenser 18 is connected with water tank 21 by filter 19, and described catch box 20 is connected with the second condenser 18 and filter 19 respectively.During recovered steam, open air pump 17, take out institute's pump by steam pump to the second condenser 18, gas after the second condenser 18 enters filter 19 and filters, tail gas after filtering enters in water tank 21, discharging then through after the Water warfare in water tank 21, the condensed fluid that steam produces after the second condenser 18 and filter 19 enters in catch box 20.Further, it is preferable that between water tank 21 and filter 19, valve is set, it is prevented that the water in water tank 21 enters filter 19.The filters that porous material is filter element 19 such as its middle filtrator 19 is activated carbon, air pump 17 is compressor or aerator.
The another preferred implementation of the present embodiment is, the top of the total tank 29 of described liquid storage is provided with valve 16, being provided with the 4th liquidometer 54 on sidewall, bottom is provided with the discharging tube 1 being connected with for liquid header 38, and discharging tube 1 is provided with valve 17；Described one end for liquid header 38 is provided with valve 18, and the other end is provided with valve 14；Described transition fluid reservoir 30 is connected to discharging tube 2 43, valve 7 33 and the 3rd liquidometer 34, discharging tube 2 43 is provided with valve 6 32；One end of described gland steam exhauster 15 is provided with valve 5 28, and the other end is provided with valve 2 24, and the gland steam exhauster 15 between valve 5 28 and valve 2 24 is provided with valve 3 25 and electromagnetic valve 26, and electromagnetic valve 26 is in parallel with valve 3 25；Described vacuum pump 16 is connected with exhaustor by valve 4 27；Arranging valve 13 and valve 15 in described first confession drain line 46, described valve 13 and valve 15 are separately positioned on the both sides for liquid header 38 and the first confession drain line 46 junction；The two ends of described second confession drain line 39 are respectively arranged with valve 8 35 and valve 10, and described confession positive displacement pump 31 is arranged between valve 8 35 and valve 10；Described total liquid back pipe 36 is arranged on for positive displacement pump 31 and supplies between liquid header 38, and is provided with valve 9 37 on total liquid back pipe 36；It is provided with valve 11 between described first liquid collecting endless tube 7 and connecting tube 41, between described second liquid collecting endless tube 8 and connecting tube 41, is provided with valve 12.It is proven, cooperating and combining by valve 1 23 to valve 18, it is possible to produce multiple specific confession draining mode, namely when a certain confession draining mode breaks down, other standby mode can be adopted to continue feed flow, it is ensured that the stable operation of whole evaporative cooling system.Further, since the fluid infusion in the first feed flow of evaporation-cooled device, running or discharge opeing etc. are had multiple for draining mode, this allows for people can multiple best for draining mode for choosing in draining mode, it is ensured that in hgher efficiency for discharge opeing.
In the present embodiment, described liquid storage total tank 29 bottom is provided with scroll wheel 50, and the total tank 29 of liquid storage is connected with liquid header by the discharging tube 1 with valve 17, therefore the total tank of liquid storage 29 is dismantled and assembled and mobile, make the total tank of same liquid storage 29 respectively to multiple evaporative cooling system feed flows, the utilization rate of the total tank 29 of liquid storage can be improve.Further, after first feed flow completes, vacuum pump 16 can also be removed, and detachable vacuum pump 16 coordinates with the total tank 29 of moveable liquid storage so that multiple stage unit can share a total tank 29 of liquid storage and vacuum pump 16, has significantly saved the purchase cost of equipment.Wherein, owing to being provided with valve for the two ends of liquid header 38, therefore after the feed flow of evaporation-cooled device completes, remove properly functioning without influence on evaporation-cooled device of liquid storage total tank 29.
In the present embodiment, it is preferable that transition fluid reservoir 30 is arranged on the lower section of the total tank 29 of liquid storage, and the lowest point of preferred discharging tube 1 is higher than the highest liquid level of transition fluid reservoir 30, to ensure that the cooling medium in the total tank 29 of liquid storage can rapidly enter transition fluid reservoir 30.But at some extreme terrain, transition fluid reservoir 30 can also be arranged on the top of the total tank 29 of liquid storage.
In the present embodiment, described vapour-recovery unit, evaporation-cooled device and liquid supplying and draining device are all fixedly installed in machine hole 22.
In the present embodiment, described air pump 17 is connected with monitoring system of the prior art.
In the present embodiment, in order to ensure the stable operation of evaporative cooling system further, also can be standby for positive displacement pump 31 for drain line 39 increases second.Further, since only one of which of the present invention is for positive displacement pump 31, therefore has only to standby one and supply positive displacement pump 31, and the patent No. is for having two for positive displacement pump 31 in " 200910091705.8 " patent, if this patent increases stand-by pump and is accomplished by increasing by two.Therefore, compared with prior art, under not increasing or increase the standby situation for positive displacement pump 31, the production cost of the present invention is all well below prior art.
In the present invention, described liquid supplying and draining device include installing or the feed flow first after having overhauled, the automatic liquid supply in running and discharge opeing for discharge opeing process, feed flow first after wherein installing or overhauled includes three kinds of feed liquid methods, in order to clear, separately below said process is elaborated.
(1), install or feed flow first after having overhauled.
nullMethod 1: use for positive displacement pump 31 feed flow，It is first shut off valve 9 37、Valve 15、Valve 6 32、Valve 3 25 and valve 4 27，Open all the other valves，Cooling medium in the total tank 29 of liquid storage is by naturally flowing into transition fluid reservoir 30 for liquid header 38 and first for drain line 46，When the 3rd liquidometer 34 on transition fluid reservoir 30 reaches to start liquid level for positive displacement pump 31，Start for positive displacement pump 31，Cooling medium in transition fluid reservoir 30 is pumped into evaporation-cooled device by second for drain line 39，Due to the pump output to cooling medium for positive displacement pump 31 more than first for the flow of the cooling medium of drain line 46，So，The registration of the 3rd liquidometer 34 will decline，When being down to stopping liquid level，Quit work for positive displacement pump 31，Prevent from dallying for positive displacement pump 31，When the registration of the 3rd liquidometer 34 reaches to start liquid level again，It is again started up for positive displacement pump 31 feed flow，So repeat，When the first liquidometer 13 reading reaches predetermined fluid level，Close valve 11，When the second liquidometer 14 reading reaches predetermined fluid level，Close valve 12、Valve 1、Valve 8 35、Valve 7 33 and confession positive displacement pump 31，The total tank 29 of liquid storage continues liquid filling in transition fluid reservoir 30，When the reading of the 3rd liquidometer 34 is close to the highest liquid level，Close valve 16、Valve 17 and valve 18，After the 3rd liquidometer 34 registration is stable，Close valve 7 33 and valve 14.
Method 2: when cannot normal operation for positive displacement pump 31, and when can not change in time, use vacuum pump 16 feed flow, it is first shut off valve 1, valve 5 28, valve 6 32, valve 9 37, valve 10, valve 13 and valve 17, open all the other valves, with vacuum pump 16, the air in evaporation-cooled device pipeline is pumped, be then shut off valve 4 27 and vacuum pump 16, open valve 17.Owing to the air pressure in evaporation-cooled device pipeline is far below atmospheric pressure, therefore the cooling medium in the total tank 29 of liquid storage will be inhaled into evaporation-cooled device by first for drain line 46.When the first liquidometer 13 reading reaches predetermined fluid level, close valve 11, close valve 12 and valve 15 when the second liquidometer 14 reading reaches predetermined fluid level.Then opening valve 13, cooling medium flows into transition fluid reservoir 30 naturally.When the 3rd liquidometer 34 registration is close to predetermined value, close valve 16, valve 17 and valve 18, after the 3rd liquidometer 34 registration is stable, close valve 7 33 and valve 14.In normal course of operation, valve 2 24, valve 5 28 and valve 8 35 are in normally open, valve 1, valve 3 25, valve 4 27, valve 6 32, valve 9 37, valve 15 and valve 18 are in normally off, and valve 7 33, valve 10, valve 11 and valve 12 are opened when fluid infusion.
Method 3: when for positive displacement pump 31 and vacuum pump 16 all cannot normal operation and when can not change in time, from valve 1, evaporation-cooled device is carried out first feed flow.
(2) automatic liquid supply in running
In running, the part evaporative cooling medium steam in evaporation-cooled device can be discharged by exhaust event, can reduce the amount of cooling medium in cooling circuit, so needing to monitor the liquid level of cooling medium in cooling circuit in real time in running.If the output valve of the first liquidometer 13 is lower than fluid infusion liquid level, start for positive displacement pump 31, and open valve 7 33, valve 10 and valve 11, cooling medium in transition fluid reservoir 30 is pumped to the first liquid collecting endless tube 7 and stator bar heater 2 etc., when the first liquidometer 13 reading reaches predetermined fluid level, closing for positive displacement pump 31, valve 7 33, valve 10 and valve 11, system completes an automatic liquid supply.If the output valve of the second liquidometer 14 is lower than fluid infusion liquid level, start for positive displacement pump 31, valve 7 33, valve 10 and valve 12 are opened, cooling medium in transition fluid reservoir 30 is pumped to, the second liquid collecting endless tube 8 and collector ring heater 3 etc., when the second liquidometer 14 reading reaches predetermined fluid level, valve 7 33, valve 10 and valve 12 are closed, and close for positive displacement pump 31, and system completes an automatic liquid supply.If the 3rd liquidometer 34 is lower than fluid infusion liquid level, utilize the total tank 29 of liquid storage and for liquid header 38 to transition fluid reservoir 30 fluid infusion.
(3) discharge opeing
nullWhen evaporation-cooled device needs discharge opeing，Close valve 2 24、Valve 6 32、Valve 10 and valve 14，Open all the other valves，Cooling medium in evaporation-cooled device pipeline is back to transition fluid reservoir 30 by first for drain line 46，When the 3rd liquidometer 34 registration reaches discharge opeing liquid level，Start for positive displacement pump 31，Cooling medium is pumped into the total tank 29 of liquid storage by total liquid back pipe 36，Owing to the flow that pumps of cooling medium being supplied the flow of cooling medium in drain line 46 more than first for positive displacement pump 31，So，3rd liquidometer 34 registration will decline，When being down to stopping discharge opeing liquid level，Quit work for positive displacement pump 31，To prevent supply and discharge liquid pump 31 from dallying，When the 3rd liquidometer 34 registration reaches discharge opeing liquid level again，It is again started up for positive displacement pump 31 discharge opeing，So repeat，Until medium is discharged clean.
In the present invention, the work process of described vapour-recovery unit is: when the steam pressure in balance pipe 1 is higher than 0.06MPa, electromagnetic valve 26 and air pump 17 leave, and steam unnecessary in cooling circuit is drawn into the second condenser 18, and steam is aggregated into liquid, tail gas enters filter 19, entrained steam is aggregated into liquid, and filter 19 tail gas enters water tank 21, finally enters air, when in balance pipe 1, pressure is lower than the unlatching pressure of electromagnetic valve 26, electromagnetic valve 26 and air pump 17 are closed.Valve 3 25 is hand by-pass valve, when electromagnetic valve 26 cannot normally-open time, manually open valve 3 25 and be exhausted.
Embodiment 2
The present embodiment is essentially identical with above-described embodiment, differs primarily in that: described first condenser 12 includes cylinder 57, and the two ends of described cylinder 57 are respectively arranged with end cap 58, and one of them end cap 58 is provided with cooling water inlet and outlet connectors 60；It is provided with many cooling tubes 59 in described cylinder 57, the outer surface of described cooling tube 59 is provided with the coating for making condensed fluid separate with cooling tube 59；Described cylinder 57 top is provided with steam inlet 61 and gas bag 55, and described gas bag 55 communicates with cylinder 57 inner chamber, and described gas bag 55 is provided with the interface 63 for connecting balance pipe 1, and described steam inlet 61 connects with gas bag 55 and dry pipe 6 respectively；Described cylinder 57 bottom is provided with hole for back flow 62, is provided with the liquid bag 56 for collecting condensed fluid in described cylinder 57, and the top of described hole for back flow 62 communicates with liquid bag 56, bottom by joint respectively with the first liquid back pipe 9 and second time liquid and connect.Wherein, the second condenser 18 is different from the structure of the first condenser 12, and the second condenser 18 is conventional condenser of the prior art.
In the present embodiment, described coating is made up of politef, Kynoar, silane Organic substance or ceramic material, and coating layer thickness can be 1 μm, it is also possible to for 0.5mm, it is preferable that the thickness of coating is 0.1mm.Above-mentioned material is adopted to make the coating that thickness is 0.1mm, there is the characteristic of low surface tension, can either with cooling tube 59 strong bonded, again not with cooling medium generation chemical reaction and do not occur obvious physical property to change in cooling medium, be conducive to the separating rate accelerating condensed fluid with cooling tube 59.
The preferred implementation of the present embodiment is, described cooling tube 59 is monolayer cooling tube 59 or double-deck cooling tube 59, and during for double-deck cooling tube 59, described coating is arranged on the outer pipe surface of double-deck cooling tube 59.
Further, described cooling tube 59 is pipe or finned pipe, during for finned pipe, described fin is again provided with coating.
Claims (8)
- null1. vertical shaft motor evaporative cooling system，It is characterized in that: include vacuum pump (16)、Gland steam exhauster (15)、Evaporation-cooled device、Liquid supplying and draining device and vapour-recovery unit，Described liquid supplying and draining device includes the total tank of liquid storage (29)、Transition fluid reservoir (30)、Connecting tube (41) and confession liquid header (38)，Described transition fluid reservoir (30) bottom is connected to and supplies the first of discharge opeing supply drain line (46) and supply drain line (39) for evaporation-cooled device for the second of discharge opeing for evaporation-cooled device，Described first is connected by connecting tube (41) for drain line (39) with second for drain line (46)，Described second for being provided for positive displacement pump (31) and the total liquid back pipe (36) connected with for liquid header (38) in drain line (39)，Described one end for liquid header (38) connects for drain line (46) with first，The other end connects with the total tank of liquid storage (29)；nullDescribed evaporation-cooled device includes balance pipe (1)、First condenser (12)、The stator bar cooling branch road being connected with the first condenser (12) and the collector ring cooling branch road being connected with the first condenser (12)，Described stator bar cooling branch road and first connects for drain line (46)，Described collector ring cooling branch road and second connects for drain line (39)，Described balance pipe (1) is connected on the first condenser (12)，And be connected with vapour-recovery unit by gland steam exhauster (15)，Described vacuum pump (16) is connected with gland steam exhauster (15)，Described connecting tube (41) and first is arranged on between liquid header (38) and stator bar cooling branch road for drain line (46) junction point，Described connecting tube (41) and second is arranged on between positive displacement pump (31) and collector ring cooling branch road for drain line (39) junction point；Described first condenser (12) includes cylinder (57), is provided with many cooling tubes (59) in described cylinder (57), and the outer surface of described cooling tube (59) is provided with the coating for making condensed fluid separate with cooling tube (59)；Described cylinder (57) bottom is provided with hole for back flow (62), is provided with the liquid bag (56) for collecting condensed fluid in described cylinder (57), and described hole for back flow (62) communicates with liquid bag (56).
- 2. vertical shaft motor evaporative cooling system as claimed in claim 1, it is characterized in that: the first liquid collecting endless tube (7) in described stator bar cooling branch road is connected to the first liquidometer (13), the second liquid collecting endless tube (8) in described collector ring cooling branch road is connected to the second liquidometer (14), the top of described first liquidometer (13) and the second liquidometer (14) is all connected with balance pipe (1), at least provided with the valve one (23) of with air communication on balance pipe (1).
- 3. vertical shaft motor evaporative cooling system as claimed in claim 1, it is characterized in that: the top of the total tank of described liquid storage (29) is provided with valve ten six (51), sidewall is provided with the 4th liquidometer (54), bottom is provided with scroll wheel (50) and the discharging tube one (42) being connected with for liquid header (38), and discharging tube one (42) is provided with valve ten seven (52)；Described one end for liquid header (38) is provided with valve ten eight (53), and the other end is provided with valve ten four (48)；Described transition fluid reservoir (30) is connected to discharging tube two (43), valve the seven (33) and the 3rd liquidometer (34), discharging tube two (43) is provided with valve six (32).
- 4. the vertical shaft motor evaporative cooling system as described in claim 1,2 or 3, it is characterized in that: one end of described gland steam exhauster (15) is provided with valve five (28), the other end is provided with valve two (24), being provided with valve three (25) and electromagnetic valve (26) on gland steam exhauster (15) between valve five (28) and valve two (24), electromagnetic valve (26) is in parallel with valve three (25)；Described vacuum pump (16) is connected with exhaustor by valve four (27).
- 5. vertical shaft motor evaporative cooling system as claimed in claim 1, it is characterized in that: described first arranges valve ten three (47) and valve ten five (49) in drain line (46), described valve ten three (47) and valve ten five (49) are separately positioned on for liquid header (38) and the first both sides supplying drain line (46) junction；The two ends of described second confession drain line (39) are respectively arranged with valve eight (35) and valve ten (40), and described confession positive displacement pump (31) is arranged between valve eight (35) and valve ten (40)；Described total liquid back pipe (36) is arranged on for positive displacement pump (31) and supplies between liquid header (38), and is provided with valve nine (37) on total liquid back pipe (36)；It is provided with valve ten one (44) between the first liquid collecting endless tube (7) and connecting tube (41) in described stator bar cooling branch road, between the second liquid collecting endless tube (8) and the connecting tube (41) in described collector ring cooling branch road, is provided with valve ten two (45).
- 6. vertical shaft motor evaporative cooling system as claimed in claim 1, it is characterised in that: described coating is made up of politef, Kynoar, silane Organic substance or ceramic material, and its thickness is 1 μm of 0.5mm.
- 7. vertical shaft motor evaporative cooling system as claimed in claim 1, it is characterised in that: described cooling tube (59) is pipe or finned pipe, during for finned pipe, described fin is provided with coating.
- 8. vertical shaft motor evaporative cooling system as claimed in claim 1, it is characterized in that: described cylinder (57) top is provided with steam inlet (61) and gas bag (55), described steam inlet (61) communicates with gas bag (55), and described gas bag (55) communicates with cylinder (57) inner chamber.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410271259.XA CN104009588B (en) | 2014-06-18 | 2014-06-18 | Vertical shaft motor evaporative cooling system |
| PCT/CN2015/080009 WO2015192710A1 (en) | 2014-06-18 | 2015-05-28 | Evaporative cooling system of vertical-shaft motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410271259.XA CN104009588B (en) | 2014-06-18 | 2014-06-18 | Vertical shaft motor evaporative cooling system |
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| CN104009588A CN104009588A (en) | 2014-08-27 |
| CN104009588B true CN104009588B (en) | 2016-07-13 |
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| 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 |
| CN106253582B (en) * | 2016-08-19 | 2019-04-19 | 中国人民解放军海军工程大学 | A kind of safety protection device of evaporative cooling motor |
| CN111864994B (en) | 2019-04-30 | 2023-01-24 | 新疆金风科技股份有限公司 | Heat exchange system and motor |
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| CN2852509Y (en) * | 2005-11-15 | 2006-12-27 | 东方电机股份有限公司 | Combined circulating device for hydro-turbo generator stator evaporating and cooling |
| CN101640452A (en) * | 2009-08-24 | 2010-02-03 | 中国科学院电工研究所 | Liquid supplying and draining device of evaporating and cooling system of water wheel generator stator |
| CN203151314U (en) * | 2012-10-31 | 2013-08-21 | 中国科学院电工研究所 | Compulsory circulating evaporation cooling device for water turbine generator stator busbar |
| CN204030863U (en) * | 2014-06-18 | 2014-12-17 | 东方电气集团东方电机有限公司 | A kind of vertical shaft motor evaporative cooling system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10243775B4 (en) * | 2002-09-20 | 2004-09-30 | Siemens Ag | Redundant cooling device for an electric submarine drive motor |
| JP4949770B2 (en) * | 2006-08-11 | 2012-06-13 | 株式会社テイエルブイ | Condensate recovery device |
| CN102035307B (en) * | 2010-12-29 | 2012-07-04 | 哈尔滨电机厂有限责任公司 | Evaporative cooling system for water-wheel generator with master-slave condenser |
| CN102969838B (en) * | 2012-10-31 | 2014-08-27 | 中国科学院电工研究所 | Forced circulation evaporation cooling device of hydro-generator stator busbar |
| DE102012220559A1 (en) * | 2012-11-12 | 2014-05-15 | Siemens Aktiengesellschaft | Cooling for electric generators |
| 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 |
-
2014
- 2014-06-18 CN CN201410271259.XA patent/CN104009588B/en active Active
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- 2015-05-28 WO PCT/CN2015/080009 patent/WO2015192710A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2852509Y (en) * | 2005-11-15 | 2006-12-27 | 东方电机股份有限公司 | Combined circulating device for hydro-turbo generator stator evaporating and cooling |
| CN101640452A (en) * | 2009-08-24 | 2010-02-03 | 中国科学院电工研究所 | Liquid supplying and draining device of evaporating and cooling system of water wheel generator stator |
| CN203151314U (en) * | 2012-10-31 | 2013-08-21 | 中国科学院电工研究所 | Compulsory circulating evaporation cooling device for water turbine generator stator busbar |
| CN204030863U (en) * | 2014-06-18 | 2014-12-17 | 东方电气集团东方电机有限公司 | A kind of vertical shaft motor evaporative cooling system |
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| WO2015192710A1 (en) | 2015-12-23 |
| CN104009588A (en) | 2014-08-27 |
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