CN1251386C - Device for recycling exhaust air and cooling fluid of condensator for evaporative cooling electric motor - Google Patents
Device for recycling exhaust air and cooling fluid of condensator for evaporative cooling electric motor Download PDFInfo
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- CN1251386C CN1251386C CN 02122111 CN02122111A CN1251386C CN 1251386 C CN1251386 C CN 1251386C CN 02122111 CN02122111 CN 02122111 CN 02122111 A CN02122111 A CN 02122111A CN 1251386 C CN1251386 C CN 1251386C
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- condenser
- evaporative cooling
- air
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- cooling fluid
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Abstract
The present invention relates to a device for recycling the exhaust air and the cooling fluid of a condenser for an evaporative cooling motor, which is designed for improving and perfecting the evaporative cooling system of a motor stator. The device is arranged between a main condenser and an evaporative cooling chamber for dipping the motor stator. One pressure controller is arranged at the top of the main condenser and is connected to the condensing space of the main condenser. The pressure controller is orderly connected to an electromagnetic valve, an air extracting pump, an auxiliary condenser and a tank for separating air and liquid. The separated air enter an air filter through a one-way valve and is discharged after being filtered. A liquid cooling medium (coolant) condensed in the tank for separating air and liquid flows back to the evaporative cooling chamber of the motor stator through a pipeline with the other pressure controller and the other electromagnetic valve. When pressure in the condensing space of the main condenser is higher than a set value, air is discharged. The invention makes the main condenser operate at preset pressure and recycles the coolant so as to meet the requirements of highly effective, safe and economical running of the evaporative cooling system of the motor.
Description
Technical field
The invention belongs to the motor cooling device, relate to the improvement of evaporative cooling motor and perfect, condenser exhaust and cooling fluid retracting device are provided.
Background technology
High-rating generator comprises turbo generator and hydraulic generator, adopts evaporation cooling technique to have good cooling results, advantage such as safe and reliable to operation than air cooling, water-cooled, hydrogen-cooled unit commonly used.Here adopt the stator heater transpiration-cooled generator to call evaporative cooling motor, its evaporation-cooled device is an airtight cooling medium circulation system, in the motor evaporative cooling chamber, after liquid coolant (claiming cooling fluid again) absorbs the motor stator heating, the explosive evaporation phase transformation takes place, become gas by liquid, enter in the condenser and carry out heat exchange, return cooling circuit (evaporative cooling chamber) again after being condensed into liquid with secondary cooling water.The boiling point of coolant has determined the operating temperature of motor, and the boiling point of coolant is closely related with the pressure of condensation space.Evaporated cooling electric machine is in operation because air leaks into, and condensation space pressure is raise, and causes the elevation of boiling point of coolant, has also reduced the cooling effect of evaporative cooling motor thereupon.At this moment in order to keep rational operating temperature, must open the pressure that the valve air-out reduces condensation space.Yet the steam of part coolant also is discharged from the time of air-out, and this is unallowed in some application scenario, and the space that evaporative cooling motor for example is installed on the naval vessel is narrower and small, and the position is restricted.
Chinese invention patent application 01131399.4 and 01131397.8 provides the evaporation-cooled device of two kinds of large-size machines, in their evaporative cooling loop, does not establish condenser exhaust and cooling fluid retracting device.Therefore, be necessary to improve and improve the circulation loop of vaporization cooling of evaporative cooling motor,,, realize the recovery of cooling fluid simultaneously to satisfy the requirement of multiple application by controlling the coolant that condensation space pressure makes it to select for use different boiling.
Summary of the invention
The condenser exhaust and the cooling fluid retracting device that the purpose of this invention is to provide evaporative cooling motor, this device air-out when main condenser condensation space pressure surpasses set point, make its pressure remain on the setting pressure state, reclaim simultaneously because of the cooling fluid (claiming coolant again) that exhaust leaks, realize the high-efficiency and economic operation of evaporative cooling motor.
The condenser exhaust of evaporative cooling motor of the present invention is connected with the evaporative cooling chamber that soaks the motor stator heat generating components with main condenser respectively with the two ends of cooling fluid retracting device.Main condenser is positioned at the top of evaporative cooling chamber.The top that one first pressure controller is contained in main condenser is communicated with its condensation space, by this first pressure controller be linked in sequence first electromagnetically operated valve, aspiration pump, secondary condenser and gas-liquid separating box; The gas-liquid separation upper box part is equipped with the blast pipe with first unidirectional valve, and this blast pipe links to each other with air cleaner; The lower end of gas-liquid separating box links to each other with evaporative cooling chamber by the pipeline that second pressure controller, second electromagnetically operated valve and second unidirectional valve are housed.
In apparatus of the present invention, secondary condenser comprises the water tank of the cooling water that circulates and the condenser pipe of circulation coolant steam and air mixture.Have in the gas-liquid separating box division board will enter the mouth and exhaust outlet separate.Air cleaner is the container that a bottom is filled with water, and exhaust outlet is established at its top, and nearly bottom links to each other with the pipeline that first unidirectional valve is housed with gas-liquid separating box, and the bottom also is provided with discharging tube and valve.The detector that leaks also is housed on the main condenser.
Apparatus of the present invention are work like this, condensation space when the main condenser top leaks because of evaporating, cooling and circulating system, cause during entrained air that operating pressure raises, when pressure reached the upper pressure limit of first pressure controller setting, first electromagnetically operated valve was opened, aspiration pump starts simultaneously.Air and coolant admixture of gas are gone into secondary condenser by the aspiration pump force feed in the main condenser, carry out heat exchange with cooling water in secondary condenser.Coolant is condensed into liquid and enters in the gas-liquid separating box with air, and air enters air cleaner by first unidirectional valve and enters atmosphere after filtering.Quilt second pressure controller here detected and sends signal command after the cooling fluid of inflow gas-liquid separating box reach a certain height, and opened second electromagnetically operated valve and made cooling fluid flow into the liquid storage part of evaporative cooling chamber.Because the operation of aspiration pump reduces the pressure of main condenser, when reaching the low pressure limit of first pressure controller setting, first electromagnetically operated valve and aspiration pump are closed simultaneously, finish exhaust cycle one time.
Apparatus of the present invention are discharged gas when main condenser condensation space hypertonia, make it be operated in the setting pressure state, reclaim cooling fluid simultaneously.Evaporation-cooled device just really might be realized the zero leakage of coolant under the long-time running condition like this, reaches the service requirement of high-efficiency and economic safety.Owing to can control condensation space pressure by the operation of aspiration pump, and then can regulate the boiling temperature of coolant, thereby for to select for use the coolant of different boiling, compliance with environmental protection requirements to create condition.Promptly the operation maintenance condenser condenses space by aspiration pump is a negative pressure state, makes coolant boiling about 50 degree Celsius, at this moment the most suitable motor cooling requirement.Simultaneously, owing to operating in, system also avoided leaking of cooling fluid under the negative pressure state.
Description of drawings
Fig. 1 is the condenser exhaust of evaporative cooling motor of the present invention and the schematic diagram of cooling fluid retracting device.
Embodiment
Fig. 1 is one embodiment of the present of invention.Evaporative cooling motor stator heat generating components is immersed in the evaporative cooling chamber 70, and main condenser 10 is positioned at the top of evaporative cooling chamber 70.The two ends of apparatus of the present invention are connected with evaporative cooling chamber 70 with main condenser 10 respectively.
In an embodiment, aspiration pump 20 is selected refrigerating machine compressor commonly used for use.The main body of secondary condenser 30 comprises casing 32 and the spirality condenser pipe 34 that is contained in the casing, the mixture of ventilating air and coolant steam in the condenser pipe 34, and the cooling water that circulates in the casing 32, entry and water out adapter are equipped with in two ends.
The inlet tube of gas-liquid separating box 40 links to each other with the outlet of the condenser pipe 34 of secondary condenser 30.Space, case middle and upper part has the division board 41 of a bending that inlet tube 43 is connected first unidirectional valve 45 with air-out pipeline is separated, and the bottom stores the coolant 44 through cooling liquid, and discharging tube 47 is arranged at the bottom.When the cooling fluid of storage in the gas-liquid separating box 40 reach a certain height, second pressure controller 61 (selecting the electric contact pressure vacuum meter identical with first pressure controller 11 for use) sends signal, second electromagnetically operated valve 63 is opened, and the cooling fluid 44 of storage flows to evaporative cooling chamber 70 through the discharging tube 47 and second unidirectional valve 65.
Be filled with water 54 in the air cleaner 50, the air inlet pipe 53 that links to each other with first unidirectional valve 45 is contained in the nearly bottom position of casing and is submerged in the water, and exhaust outlet 51 is arranged at the top.The air that enters in the air cleaner 50 is discharged by exhaust outlet 51 after water 54 filters.Nearly bottom also is provided with discharging tube and valve 55, is used for drain.
In an embodiment, coolant is selected perfluoro triethylamine for use, and its molecular formula is (C
2F
5)
2N depresses at a standard atmosphere, and boiling point is 69 degree Celsius; Perhaps with picking up amyl fluoride, its molecular formula is C
5H
2F
10, to depress at a standard atmosphere, boiling point is 55 degree Celsius.
Claims (5)
1, a kind of condenser exhaust of evaporative cooling motor and cooling fluid retracting device, the two ends that it is characterized in that this device are connected with evaporative cooling chamber with main condenser respectively, the top that one first pressure controller is contained in main condenser is communicated with its condensation space, by first pressure controller be linked in sequence first electromagnetically operated valve, aspiration pump, secondary condenser and gas-liquid separating box; Gas-liquid separating box links to each other with air cleaner by first unidirectional valve; The gas-liquid separating box lower end links to each other with evaporative cooling chamber by the pipeline that second pressure controller, second electromagnetically operated valve and second unidirectional valve are housed.
2, the condenser exhaust of evaporative cooling motor according to claim 1 and cooling fluid retracting device is characterized in that secondary condenser wherein comprises the casing of the cooling water that circulates and the condenser pipe of circulation cooling fluid and air mixture.
3, the condenser exhaust of evaporative cooling motor according to claim 1 and cooling fluid retracting device is characterized in that having in the gas-liquid separating box wherein division board to enter the mouth and air outlet is kept apart.
4, the condenser exhaust of evaporative cooling motor according to claim 1 and cooling fluid retracting device is characterized in that air cleaner wherein is a water container, and air intake is submerged under water, and the top is provided with exhaust outlet, and the bottom is provided with discharging tube and valve.
5, the condenser exhaust of evaporative cooling motor according to claim 1 and cooling fluid retracting device, it is characterized in that used first pressure controller and second pressure controller have pressure and show, upper pressure limit and low pressure limit are set, described pressure shows that upper pressure limit and low pressure limit are set all corresponding connection, disconnect electric contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02122111 CN1251386C (en) | 2002-05-30 | 2002-05-30 | Device for recycling exhaust air and cooling fluid of condensator for evaporative cooling electric motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02122111 CN1251386C (en) | 2002-05-30 | 2002-05-30 | Device for recycling exhaust air and cooling fluid of condensator for evaporative cooling electric motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1463068A CN1463068A (en) | 2003-12-24 |
| CN1251386C true CN1251386C (en) | 2006-04-12 |
Family
ID=29743141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02122111 Expired - Fee Related CN1251386C (en) | 2002-05-30 | 2002-05-30 | Device for recycling exhaust air and cooling fluid of condensator for evaporative cooling electric motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1251386C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102035307A (en) * | 2010-12-29 | 2011-04-27 | 哈尔滨电机厂有限责任公司 | Evaporative cooling system for water-wheel generator with master-slave condenser |
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| CN100571881C (en) * | 2005-04-20 | 2009-12-23 | 中国科学院电工研究所 | Evaporating and cooling electromagnetic iron remover |
| CN100521448C (en) * | 2005-11-04 | 2009-07-29 | 中国科学院电工研究所 | Transpiration-cooled wind driven generator stator |
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| CN108683290A (en) * | 2018-05-23 | 2018-10-19 | 夏文斌 | A kind of New energy automobile motor heat dissipation silencer |
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| CN112564417A (en) * | 2019-09-26 | 2021-03-26 | 襄阳中车电机技术有限公司 | New energy automobile permanent magnet motor |
| CN110601408B (en) * | 2019-09-30 | 2024-04-12 | 长江勘测规划设计研究有限责任公司 | Internal cooling circulation system for stator winding of hydroelectric generating set based on hydrogen cooling technology |
| CN110993300B (en) * | 2019-12-13 | 2021-04-27 | 深圳市奥电高压电气有限公司 | Evaporation cooling transformer vacuum pumping equipment |
-
2002
- 2002-05-30 CN CN 02122111 patent/CN1251386C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102035307A (en) * | 2010-12-29 | 2011-04-27 | 哈尔滨电机厂有限责任公司 | Evaporative cooling system for water-wheel generator with master-slave condenser |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1463068A (en) | 2003-12-24 |
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Granted publication date: 20060412 |