CN115124161A - Method for prolonging resin service cycle of generator rotor cooling water treatment device - Google Patents
Method for prolonging resin service cycle of generator rotor cooling water treatment device Download PDFInfo
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- CN115124161A CN115124161A CN202210526752.6A CN202210526752A CN115124161A CN 115124161 A CN115124161 A CN 115124161A CN 202210526752 A CN202210526752 A CN 202210526752A CN 115124161 A CN115124161 A CN 115124161A
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- 239000000498 cooling water Substances 0.000 title claims abstract description 78
- 239000011347 resin Substances 0.000 title claims abstract description 44
- 229920005989 resin Polymers 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 42
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 160
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 93
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 77
- 239000007789 gas Substances 0.000 claims abstract description 45
- 230000001105 regulatory effect Effects 0.000 claims abstract description 31
- 230000001276 controlling effect Effects 0.000 claims abstract description 3
- 239000007788 liquid Substances 0.000 claims description 22
- 239000013589 supplement Substances 0.000 claims description 2
- 230000001502 supplementing effect Effects 0.000 claims description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract description 38
- 239000001569 carbon dioxide Substances 0.000 abstract description 19
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract description 19
- 230000002035 prolonged effect Effects 0.000 abstract description 7
- 238000012423 maintenance Methods 0.000 abstract description 5
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 12
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 description 8
- 229910001431 copper ion Inorganic materials 0.000 description 8
- 229910001873 dinitrogen Inorganic materials 0.000 description 6
- 238000001816 cooling Methods 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 239000011358 absorbing material Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000003513 alkali Substances 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000007872 degassing Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
Images
Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/20—Treatment of water, waste water, or sewage by degassing, i.e. liberation of dissolved gases
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/02—Non-contaminated water, e.g. for industrial water supply
- C02F2103/023—Water in cooling circuits
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/005—Processes using a programmable logic controller [PLC]
- C02F2209/008—Processes using a programmable logic controller [PLC] comprising telecommunication features, e.g. modems or antennas
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment Of Water By Ion Exchange (AREA)
Abstract
The invention relates to the technical field of generator rotor cooling water treatment devices, and discloses a method for prolonging the resin service cycle of a generator rotor cooling water treatment device, wherein the input end of the rotor cooling water treatment device is connected with a water tank, the water tank is communicated with a nitrogen storage tank through a gas pipeline, and an electromagnetic regulating valve is arranged on the gas pipeline; the method comprises the following steps: and setting the nitrogen flow in the gas pipeline, and controlling the opening of the electromagnetic regulating valve according to a preset value of the nitrogen flow so as to control the flow of the nitrogen entering the water tank. According to the invention, partial pressure of nitrogen is utilized, most of carbon dioxide in cooling water can be removed, and the flow of nitrogen can be automatically controlled and adjusted, so that the service life of resin is prolonged by 50-100%; in addition, the engine rotor can be cooled without replacing equipment and modifying a cooling water pipeline, so that a large amount of operation and maintenance cost is saved.
Description
Technical Field
The invention relates to the technical field of generator rotor cooling water treatment devices, in particular to a method for prolonging the service life of resin of a generator rotor cooling water treatment device.
Background
The existing generator rotor cooling water requires that the content of copper ions is less than 40 mug/L, the pH value is between 7 and 9, and the conductivity is less than 5 muS/cm, but the water throwing box of the generator rotor cannot be completely sealed, carbon dioxide in air is continuously sucked in, so that the pH value of the rotor cooling water is reduced, copper is continuously corroded, the content of the copper ions exceeds the standard, and the copper ions are easily deposited in a generator cooling water channel due to the fact that the content of the copper ions exceeds the standard, so that the amount of cooling water is insufficient, and the generator fault is caused.
The existing rotor cooling water treatment device mostly adopts a mode of synergistic action of mixed bed treatment and automatic alkali addition to absorb copper ions in cooling water and simultaneously improve the pH value of the cooling water to slow down the corrosion of a copper rod. However, as carbon dioxide in the air is continuously absorbed, the resin needs to additionally absorb reaction products of the carbon dioxide besides copper ions; meanwhile, the pH value of the cooling water is reduced due to the carbon dioxide, and the alkali addition amount has to be increased in order to maintain the pH value; the two aspects are combined to cause the service life of the processing device to be shortened, the service life of the processing device can be maintained to be 2-6 months, and the processing device is generally out of service, and the cost for replacing a set of resin is 1-2 ten thousand yuan.
The existing method for prolonging the service life of the rotor cooling water treatment device comprises the following steps: firstly, the resin amount is increased to increase the service cycle of the resin; secondly, a degassing device is additionally arranged on a cooling water return pipe of the rotor; thirdly, a breathing device for isolating air is additionally arranged in the water tank, and alkaline carbon dioxide absorbing materials are filled in the water tank. However, by increasing the amount of resin, although the resin usage cycle can be prolonged, the required equipment is bulky, the cost for replacing resin in one time is increased, and the unit cost is not actually reduced; the method for additionally installing the degassing device on the cooling water return pipe needs to modify a main cooling water pipeline, so that the resistance of the recovery pipeline is increased; the method for additionally arranging the air-isolated breathing device in the water tank is to fill an alkaline carbon dioxide absorbing material in the water tank, the alkaline carbon dioxide absorbing material can only isolate a small amount of carbon dioxide absorbed by the contact of the water tank and air, and the water tank is in a micro-positive pressure state in normal operation, so that the carbon dioxide can not be absorbed, the carbon dioxide absorbed by a water throwing box of a generator rotor has no effect, and the service life of a treatment device can not be prolonged.
Disclosure of Invention
In view of this, the invention provides a method for prolonging the service life of resin of a generator rotor cooling water treatment device, so as to solve the technical problems that the cost of equipment and pipeline modification is high, the resistance is large, and the service life of the device cannot be effectively prolonged.
In order to solve the technical problems, the invention adopts the following technical scheme:
a method for prolonging the resin service cycle of a cooling water treatment device of a generator rotor is characterized in that the input end of the cooling water treatment device of the generator rotor is connected with a water tank, the water tank is communicated with a nitrogen storage tank through a gas pipeline, and the gas pipeline is provided with an electromagnetic regulating valve;
the method comprises the following steps: and setting the nitrogen flow in the gas pipeline, and controlling the opening of the electromagnetic regulating valve according to a preset nitrogen flow value so as to control the flow of the nitrogen entering the water tank.
Preferably, in the method for prolonging the resin service life of the generator rotor cooling water treatment device, if the actual flow rate of nitrogen in the gas pipeline is lower than a preset value of the flow rate of nitrogen, the opening degree of the electromagnetic regulating valve is increased;
and if the actual flow of the nitrogen in the gas pipeline is higher than the preset flow of the nitrogen, the opening of the electromagnetic regulating valve is reduced.
Preferably, in the method for prolonging the resin service life of the generator rotor cooling water treatment device, if the actual flow rate of nitrogen in the gas pipeline is still lower than the preset value of the flow rate of nitrogen after the electromagnetic regulating valve is completely opened, an alarm signal is sent out, and nitrogen is supplemented into the nitrogen storage tank.
Preferably, in the method for prolonging the service life of the resin of the cooling water treatment device of the generator rotor, the preset value of the nitrogen flow is 20-30L/h, and the nitrogen pressure is 0.05-0.1 MPa; further preferably, the preset nitrogen flow rate is 20-25L/h.
Preferably, in the method for prolonging the service life of the resin of the cooling water treatment device of the generator rotor, the gas pipeline extends to the bottom of the water tank, and is 80-120 mm, more preferably 100mm away from the bottom of the water tank, so that carbon dioxide in the water tank can be sufficiently discharged.
Preferably, in the method for prolonging the resin service life of the cooling water treatment device for the generator rotor, a gas flowmeter is arranged on the gas pipeline for measuring the actual flow rate value of the nitrogen in the gas pipeline.
Preferably, in the method for prolonging the resin service cycle of the generator rotor cooling water treatment device, the gas flowmeter and the electromagnetic regulating valve are both communicated to a DCS system, the gas flowmeter transmits the measured actual nitrogen flow value to the DCS system, and the DCS system compares the actual nitrogen flow value with a preset nitrogen flow value and then sends a control signal to the electromagnetic regulating valve.
Preferably, in the method for prolonging the resin service cycle of the cooling water treatment device of the generator rotor, a pressure regulating valve and a pressure gauge are arranged on the outlet pipeline of the nitrogen storage tank, and the accurate grade of the pressure regulating valve and the pressure gauge is 0.01 MPa.
Preferably, in the method for prolonging the resin service cycle of the cooling water treatment device of the generator rotor, the bottom of the water tank is provided with a water outlet for adjusting the water level of the water tank and facilitating the drainage of water or water change and the like during the operation of maintenance and the like.
Preferably, in the method for prolonging the resin service life of the cooling water treatment device for the generator rotor, the top is provided with a water inlet for introducing circulating water into the water tank;
further preferably, the circulating water includes, but is not limited to, demineralized water and condensed water, and the number of the water inlets can be adjusted according to actual conditions.
Preferably, in the method for prolonging the resin service cycle of the generator rotor cooling water treatment device, the water tank is connected with a liquid level meter, and if the actual liquid level height measured by the liquid level meter is higher than a preset liquid level value, water is discharged from a water outlet of the water tank; and if the actual liquid level height measured by the liquid level meter is lower than the preset liquid level value, supplementing water from a water inlet of the water tank.
Preferably, in the method for prolonging the service life of the resin in the generator rotor cooling water treatment device, the water tank is communicated with a cooler for cooling the water in the water tank.
The invention provides a method for prolonging the resin service cycle of a generator rotor cooling water treatment device, which has the following beneficial effects compared with the prior art:
according to the invention, partial pressure of nitrogen is utilized, most of carbon dioxide in cooling water can be removed, and the flow of nitrogen can be automatically controlled and adjusted, so that the service life of resin is prolonged by 50-100%; in addition, the engine rotor can be cooled without replacing equipment and modifying a cooling water pipeline, so that a large amount of operation and maintenance cost is saved.
Drawings
FIG. 1 is a process flow diagram of an embodiment of the invention;
fig. 2 is a system flow diagram of an embodiment of the invention.
In the figure:
1 is a rotor cooling water treatment device, 2 is a water tank, 3 is a gas pipeline, 4 is a nitrogen storage tank, 5 is an electromagnetic regulating valve, 6 is a gas flowmeter, 7 is a liquid level meter, and 8 is a cooler.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to the attached figure 1, the embodiment of the invention discloses a method for prolonging the resin service life of a generator rotor cooling water treatment device, wherein the input end of the rotor cooling water treatment device 1 is connected with a water tank 2, the water tank 2 is communicated with a nitrogen storage tank 4 through a gas pipeline 3, and an electromagnetic regulating valve 5 is installed on the gas pipeline 3.
In some embodiments of the present invention, the gas conduit 3 is a 316L pipe with a diameter of 20 mm.
In some embodiments of the invention, the gas pipe 3 extends to the bottom of the water tank 2 at a distance of 80-120 mm, more preferably 100mm, from the bottom of the water tank 2.
In some embodiments of the present invention, a gas flow meter 6 is disposed on the gas pipe 3 for measuring the actual flow rate of nitrogen in the gas pipe 3.
In some embodiments of the present invention, the gas flow meter 6 and the electromagnetic regulating valve 5 are both connected to the DCS system, the gas flow meter 6 transmits the measured actual flow value of the nitrogen gas to the DCS system, and the DCS system compares the actual flow value of the nitrogen gas with a preset flow value of the nitrogen gas and then sends a control signal to the electromagnetic regulating valve 5.
In some embodiments of the present invention, a pressure regulating valve and a pressure gauge are disposed on the outlet pipeline of the nitrogen storage tank 4, and the accuracy grade of the pressure regulating valve and the pressure gauge is 0.01 MPa.
In some embodiments of the present invention, the bottom of the water tank 2 is provided with a water outlet for adjusting the water level of the water tank 2, and facilitating the drainage of water or water change during operations such as maintenance.
In some embodiments of the invention, the top is provided with a water inlet for introducing circulating water into the water tank 2;
wherein, the circulating water includes but not limited to demineralized water and condensate water, and the water inlet quantity can be adjusted according to the actual conditions.
In some embodiments of the invention, the water tank 2 is connected with a liquid level meter 7, and if the actual liquid level height measured by the liquid level meter 7 is higher than the preset liquid level value, water is discharged from a water outlet of the water tank 2; if the actual liquid level height measured by the liquid level meter 7 is lower than the preset liquid level value, water is supplemented from the water inlet of the water tank 2.
In some embodiments of the present invention, the water tank 2 is communicated with a cooler 8 for cooling the water in the water tank 2.
Specifically, the water pump is arranged on the connecting pipeline between the water tank 2 and the cooler 8 and used for pumping cooling water to the cooler 8 for cooling, and the number of the water pumps and the number of the coolers can be changed according to actual operation conditions.
In some embodiments of the present invention, the preset nitrogen flow rate is 20 to 30L/h, more preferably 25L/h, and the nitrogen pressure is 0.05 to 0.1 MPa.
In some embodiments of the invention, the method comprises the steps of:
s1, setting a preset nitrogen flow value in a gas pipeline 3, and storing the preset nitrogen flow value in a DCS (distributed control system);
s2, measuring an actual flow value of nitrogen in the gas pipeline 3 through the gas flowmeter 6, and conveying the actual flow value of the nitrogen to a DCS (distributed control system);
and S3, comparing the preset nitrogen flow value with the actual nitrogen flow value by the DCS, and transmitting a control signal to the electromagnetic regulating valve 5 according to the comparison result to regulate the opening of the electromagnetic regulating valve 5 so as to control the flow of the nitrogen entering the water tank 2.
According to the method, carbon dioxide dissolved in the cooling water is discharged according to the Dalton partial pressure law, so that the pH value of the cooling water is increased, the electric conductivity of the cooling water is reduced, and the service life of the resin is prolonged.
In some embodiments of the present invention, in step S3, if the actual flow value of nitrogen in the gas pipeline 3 is lower than the preset flow value of nitrogen, the DCS system controls to increase the opening of the electromagnetic regulating valve 5;
and if the actual flow value of the nitrogen in the gas pipeline 3 is higher than the preset flow value of the nitrogen, the DCS controls and reduces the opening of the electromagnetic regulating valve 5.
The nitrogen flow in the gas pipeline 3 can be ensured to be stable through the adjustment, and the carbon dioxide in the cooling water can be effectively removed.
In some embodiments of the present invention, if the actual flow rate of nitrogen in the gas pipeline 3 is still lower than the preset value of the flow rate of nitrogen after the electromagnetic regulating valve 5 is completely opened, the DCS system sends an alarm signal to prompt an operation and maintenance worker to supplement nitrogen to the nitrogen storage tank 4 or replace the nitrogen storage tank 4.
Specifically, the nitrogen storage tank 4 may be nitrogen cylinders, and the number of the nitrogen cylinders may be adjusted according to actual conditions.
In some embodiments of the invention, the method further comprises the steps of:
and S4, the cooling water in the water tank 2 is treated by the rotor cooling water treatment device 1 and then is conveyed to the rotor of the engine through a pipeline, and cooling return water after cooling the engine is returned to the water tank 2 to continue circulation.
It should be noted that the engine rotor and the stator in the generator set 9 of the present invention share one water tank 2, the cooling water in the water tank 2 is separately delivered to the engine rotor and the engine stator through a pipeline branch, and the engine stator return water is also returned to the water tank 2 for further recycling.
In addition, the invention takes the nitrogen gas inflow as a variable, aiming at the situations that the cooling water treatment device is not put into operation, the cooling water treatment device is normally put into operation but the resin fails, and the nitrogen gas inflow is 0, 0-5L/h, 5-10L/h, 10-15L/h, 15-20L/h, 20-25L/h and 20-30L/h in the normal operation process of the cooling water treatment device, the changes of the carbon dioxide content in the cooling water, the cooling water conductivity and the copper content in the cooling water are tested, verified and recorded, the service cycle of the resin in the cooling water treatment device is recorded when the nitrogen gas inflow is 20-25L/h, and the test results are shown in Table 1.
TABLE 1 test results
When the cooling water treatment device is not put into operation, in order to maintain the pH value, sodium hydroxide needs to be added manually, but the addition of the sodium hydroxide can cause the increase of the conductivity, the pH value of the cooling water is still lower than 7, the content of copper in the cooling water is high, and the corrosion is serious;
after the cooling water treatment device is put into operation, sodium hydroxide is automatically and continuously added to adjust the pH value, meanwhile, resin in the cooling water treatment device adsorbs other impurity ions (including the added sodium hydroxide, carbon dioxide absorbed into cooling water and the like) such as copper ions, and at the moment, although the content of the copper ions is low, the service cycle of the resin is only 126 days;
after the cooling water treatment device is put into operation, nitrogen with different flow rates is introduced, the content of carbon dioxide in cooling water is gradually reduced along with the increase of the input amount of the nitrogen, the conductivity of the cooling water required for maintaining the pH value of the cooling water is gradually reduced, the lowest conductivity is only 1.8 mu S/cm, the pH value can be maintained between 7.2 and 7.6, and the service life of the resin is prolonged to 313 days; however, when the nitrogen flow is more than 25L/h, the carbon dioxide content, the conductivity and the pH value are not obviously changed, so that the best effect can be achieved when the nitrogen flow is 25L/h.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. For the scheme disclosed by the embodiment, the scheme corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description. The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A method for prolonging the resin service cycle of a generator rotor cooling water treatment device is characterized in that the input end of the rotor cooling water treatment device is connected with a water tank, the water tank is communicated with a nitrogen storage tank through a gas pipeline, and an electromagnetic regulating valve is arranged on the gas pipeline;
the method comprises the following steps: and setting the nitrogen flow in the gas pipeline, and controlling the opening of the electromagnetic regulating valve according to a preset value of the nitrogen flow so as to control the flow of the nitrogen entering the water tank.
2. The method for prolonging the resin service life of the cooling water treatment device for the generator rotor as recited in claim 1, wherein if the actual flow rate of nitrogen in the gas pipeline is lower than a preset value of the flow rate of nitrogen, the opening degree of the electromagnetic regulating valve is increased;
and if the actual flow of the nitrogen in the gas pipeline is higher than the preset value of the flow of the nitrogen, the opening of the electromagnetic regulating valve is reduced.
3. The method for prolonging the resin service life of the cooling water treatment device for the generator rotor as recited in claim 2, wherein if the actual flow rate of nitrogen in the gas pipeline is still lower than a preset nitrogen flow rate value after the electromagnetic regulating valve is completely opened, an alarm signal is sent out to supplement nitrogen into the nitrogen storage tank.
4. The method for prolonging the resin service life of the cooling water treatment device of the generator rotor as recited in claim 1, wherein the preset nitrogen flow rate is 20-30L/h, and the nitrogen pressure is 0.05-0.1 MPa.
5. The method for prolonging resin life of generator rotor cooling water treatment device according to claim 1, wherein the gas pipeline extends to the bottom of the water tank and is at a distance of 80-120 mm from the bottom of the water tank.
6. The method for prolonging the resin service life of the cooling water treatment device for the generator rotor as recited in claim 1, wherein a gas flowmeter is disposed on the gas pipeline for measuring the actual flow rate of nitrogen in the gas pipeline.
7. The method for prolonging the resin service life of the cooling water treatment device of the generator rotor as recited in claim 6, wherein the gas flowmeter and the electromagnetic regulating valve are both communicated to a DCS system, the gas flowmeter transmits the measured actual nitrogen flow value to the DCS system, and the DCS system sends a control signal to the electromagnetic regulating valve after comparing the actual nitrogen flow value with the preset nitrogen flow value.
8. The method for prolonging the resin service life of the cooling water treatment device of the generator rotor as claimed in claim 1, wherein a pressure regulating valve and a pressure gauge are arranged on the outlet pipeline of the nitrogen storage tank, and the accuracy grade of the pressure regulating valve and the pressure gauge is 0.01 MPa.
9. The method for prolonging the resin service life of the cooling water treatment device for the generator rotor as claimed in claim 1, wherein a liquid level meter is connected to the water tank, and if the actual liquid level height measured by the liquid level meter is higher than a preset liquid level value, water is discharged from a water outlet of the water tank; and if the actual liquid level height measured by the liquid level meter is lower than the preset liquid level value, supplementing water from a water inlet of the water tank.
10. The method for prolonging the resin service life of the cooling water treatment device of the generator rotor as recited in claim 1, wherein the water tank is communicated with a cooler for cooling water in the water tank.
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