CN222500434U - Unit technology water supply anti-condensation device - Google Patents
Unit technology water supply anti-condensation device Download PDFInfo
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- CN222500434U CN222500434U CN202420999192.0U CN202420999192U CN222500434U CN 222500434 U CN222500434 U CN 222500434U CN 202420999192 U CN202420999192 U CN 202420999192U CN 222500434 U CN222500434 U CN 222500434U
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Abstract
The utility model provides a unit technology water supply anti-condensation device which is simple in structure, easy to implement, convenient to operate and high in applicability, and comprises a draft tube, a technology water supply water intake main pipe, a cooling unit and a technology water supply water discharge main pipe, wherein the technology water supply water intake main pipe takes water from the draft tube to obtain hot water after a user of the cooling unit, and then the hot water is collected into the draft tube through the technology water supply water discharge main pipe.
Description
Technical Field
The utility model relates to the technical field of power production, in particular to a unit technology water supply condensation preventing device suitable for a pumped storage power station.
Background
According to the characteristics of water supply and water taking of the pumped storage power station technology, water is generally taken from a draft tube, the water temperature is low, the pressurized water is conveyed to each user end of the unit through a technical water supply pump, the water temperature is increased after each user, and the cooled unit including an upper guide bearing cooler, a generator air cooler, a thrust bearing cooler, a water guide bearing cooler, a lower guide bearing cooler, a main shaft sealing water supply, a leakage-stopping ring water supply and a main transformer cooler is shown in fig. 1, and finally the cooled unit is discharged to the downstream through a drainage main tube to form circulation.
In autumn, winter and early spring, the air temperature is obviously higher than the water temperature, and the condensation phenomenon is formed on the water pipe due to the condensation of hot air. This kind of condition both can cause the factory building to be interior moist, and there is a large amount of water droplet to form on ground, also can produce harmful effect to pipeline external surface paint. Therefore, in the operation process of the technical water supply system of the electricity pumping and storage station, dew prevention measures need to be adopted for the pipeline.
Through field practice verification, if the temperature difference between the water temperature and the air temperature is within 8 ℃, the condensation phenomenon can not be generated. The method for covering the heat preservation layer is widely applied to anti-condensation measures of the hydraulic pipeline, but the working pressure of the water supply pipeline in the hydropower plant is extremely high, and the heat preservation layer is covered to bring great inconvenience to subsequent overhaul and maintenance and even bring potential safety hazards. The domestic hydropower station technical water supply pipeline is explicitly required by the hydropower station construction and management units to inhibit the arrangement of a covering heat-insulating layer. In addition, methods such as increasing the number and power of dehumidification devices and adding a dehumidification system are poor in economy, have great influence on the original device running environment and the power requirements of factories, and are difficult to implement.
In conclusion, no water supply pipeline condensation preventing device and method which are simple in structure, convenient to operate and applicable to the whole-plant range of a hydropower plant exist at present.
Disclosure of utility model
The utility model aims to provide the unit technology water supply anti-condensation device which has the advantages of simple structure, easy realization of the method, convenient operation and strong applicability.
In order to achieve the above purpose, the present utility model is realized by the following technical scheme:
The unit technology water supply anti-condensation device comprises a draft tube, a technology water supply water intake main pipe, a cooling unit and a technology water supply water discharge main pipe, wherein the technology water supply water intake main pipe takes water from the draft tube to obtain hot water after a user of the cooling unit, and the hot water is collected into the draft tube through the technology water supply water discharge main pipe;
The unit technology water supply anti-condensation system comprises a unit technology water supply anti-condensation pipeline, an electric valve, an electromagnetic flowmeter, a temperature sensor, a flow regulating valve, a signal processing system and a system temperature sensor, wherein the system temperature sensor is arranged on a technology water supply water intake main pipe, and the signal processing system is used for processing the temperature difference between the system temperature sensor and an in-plant air temperature sensor, controlling the electric valve to be opened if the temperature difference is more than 8 ℃, and controlling the electric valve to be closed if the temperature difference is less than 8 ℃; the electric valve is used for regulating and controlling the water supply anti-condensation system of the unit technology to operate, the electromagnetic flowmeter and the temperature sensor are used for determining the introduced flow and the temperature through real-time monitoring, and the flow regulating valve is used for regulating the flow of the water supply anti-condensation system of the unit technology;
When the electric valve is opened, the flow regulating valve is synchronously opened, and the flow regulating valve is gradually opened until the temperature difference between the temperature sensor in the factory and the temperature sensor of the system is less than 8 ℃, and the flow regulating valve is fixed in opening degree.
Further, a total flow regulating valve is arranged on the technical water supply and drainage main pipe, if the temperature difference between the temperature sensor in the factory and the temperature sensor of the system is still more than 8 ℃ when the flow regulating valve is opened to the maximum, the total flow regulating valve on the technical water supply and drainage main pipe is regulated, the flow of the main pipe is reduced, the flow on the unit technical water supply anti-condensation pipeline is increased, and the temperature difference between the two is regulated to be less than 8 ℃.
Further, the unit technology water supply anti-condensation system further comprises a check valve, wherein the check valve is used for preventing water flow at the water intake from reversely flowing to the drain pipe.
Further, the unit technology water supply anti-condensation system further comprises an overhaul valve, wherein the overhaul valve is respectively arranged on the water inlet side and the water outlet side of the pipeline and is used for routine and accident overhaul.
Further, a water intake section of the technical water supply and intake main pipe is provided with a check valve.
Compared with the prior art, the utility model has the following advantages:
The unit technology water supply anti-condensation device is simple in structure, low in cost, durable, good in safety and very suitable for a technical water supply system of a pumping and storing station, is only composed of newly-added pipelines and equipment, is easy to realize, is used for connecting the equipment and the pipelines to corresponding positions, and is accurate and reliable in feedback adjustment of the whole system by utilizing a control system.
Drawings
FIG. 1 is a schematic diagram of a pumped-storage power station technology water supply system anti-condensation arrangement of the present utility model.
The system comprises a technical water supply and water intake main pipe, a cooling unit, a technical water supply and water discharge main pipe, a 41 total flow regulating valve, a 5 unit technical water supply condensation preventing system, a 51 electric valve, a 52 electromagnetic flowmeter, a 53 temperature sensor, a 54 flow regulating valve, a 55 signal processing system, a 56 system temperature sensor, a 57 check valve, a 58 service valve and a 6 in-plant air temperature sensor.
Detailed Description
Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings.
As shown in fig. 1, the unit technology water supply anti-condensation device comprises a draft tube 1, a technology water supply water intake main pipe 2, a cooling unit 3 and a technology water supply water discharge main pipe 4, wherein the technology water supply water intake main pipe 4 takes water from the draft tube 1 to obtain hot water after passing through a user of the cooling unit 3, and the hot water is converged into the draft tube 1 through the technology water supply water discharge main pipe 4, and the unit technology water supply anti-condensation device also comprises a unit technology water supply anti-condensation system 5 and an in-plant air temperature sensor 6, wherein the unit technology water supply anti-condensation system 5 takes water from the technology water supply water discharge main pipe 4;
The unit technology water supply anti-condensation system 5 comprises a unit technology water supply anti-condensation pipeline and an electric valve 51, an electromagnetic flowmeter 52, a temperature sensor 53, a flow regulating valve 54, a signal processing system 55 and a system temperature sensor 56 which are arranged on the technology water supply water intake main pipe 2, wherein the signal processing system 55 is used for processing the temperature difference between the system temperature sensor 56 and the in-plant air temperature sensor 6, if the temperature difference is more than 8 ℃, the electric valve 51 is controlled to be opened, and if the temperature difference is less than 8 ℃, the electric valve 51 is controlled to be closed;
When the electric valve 51 is opened, the flow regulating valve 54 is synchronously opened, and the flow regulating valve 54 is gradually opened until the temperature difference between the temperature sensor 6 in the plant and the system temperature sensor 56 is less than 8 ℃, and the flow regulating valve 54 is fixed in opening.
The total flow regulating valve 41 is arranged on the technical water supply and drainage main pipe 4, if the temperature difference between the air temperature sensor 6 and the system temperature sensor 56 in the factory is still more than 8 ℃ when the flow regulating valve 41 is opened to the maximum, the total flow regulating valve 41 on the technical water supply and drainage main pipe 4 is regulated, the main pipe flow is reduced, the flow on a unit technical water supply condensation preventing pipeline is increased, and the temperature difference between the two is regulated to be less than 8 ℃.
The unit technology water supply anti-dewing system 5 further includes a check valve 57, and the check valve 57 is used for preventing water intake water flow from reversely flowing to the drain pipe.
The unit technology water supply anti-condensation system 5 further comprises an overhaul valve 58, wherein the overhaul valve 58 is respectively arranged on the water inlet side and the water outlet side of the pipeline and is used for routine and accident overhaul.
The water intake section of the technical water supply and intake main pipe 2 is provided with a check valve for preventing high-pressure water from flowing backwards.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the concept of the present utility model, and such modifications and adaptations are intended to be comprehended within the scope of the present utility model.
Claims (5)
1. The utility model provides a unit technology water supply anti-dewing device, includes draft tube, technical water supply water intaking house steward, cooling unit, technical water supply drainage house steward, and technical water supply water intaking house steward gets from the draft tube, obtains the hot water after cooling unit user, and the water intaking is gone into its characterized in that through technical water supply drainage house steward again:
the system also comprises a unit technology water supply anti-condensation system and an in-plant air temperature sensor, wherein the unit technology water supply anti-condensation system takes water from a technology water supply and drainage main pipe;
The unit technology water supply anti-condensation system comprises a unit technology water supply anti-condensation pipeline, an electric valve, an electromagnetic flowmeter, a temperature sensor, a flow regulating valve, a signal processing system and a system temperature sensor, wherein the system temperature sensor is arranged on a technology water supply water intake main pipe, and the signal processing system is used for processing the temperature difference between the system temperature sensor and an in-plant air temperature sensor, controlling the electric valve to be opened if the temperature difference is more than 8 ℃, and controlling the electric valve to be closed if the temperature difference is less than 8 ℃; the electric valve is used for regulating and controlling the water supply anti-condensation system of the unit technology to operate, the electromagnetic flowmeter and the temperature sensor are used for determining the introduced flow and the temperature through real-time monitoring, and the flow regulating valve is used for regulating the flow of the water supply anti-condensation system of the unit technology;
When the electric valve is opened, the flow regulating valve is synchronously opened, and the flow regulating valve is gradually opened until the temperature difference between the temperature sensor in the factory and the temperature sensor of the system is less than 8 ℃, and the flow regulating valve is fixed in opening degree.
2. The unit technology water supply and condensation prevention device according to claim 1, wherein the technology water supply and drainage main pipe is provided with a total flow regulating valve, if the temperature difference between a temperature sensor in a plant and a system temperature sensor is still more than 8 ℃ when the flow regulating valve is opened to the maximum, the total flow regulating valve on the technology water supply and drainage main pipe is regulated, the main pipe flow is reduced, the flow on a unit technology water supply and condensation prevention pipeline is increased, and the temperature difference between the two is regulated to be less than 8 ℃.
3. The unit technology water supply anti-condensation device according to claim 2, wherein the unit technology water supply anti-condensation system further comprises a check valve for preventing water at the water intake from flowing reversely to the drain pipe.
4. The unit technology water supply anti-condensation device according to claim 2, wherein the unit technology water supply anti-condensation system further comprises an inspection valve, wherein the inspection valve is respectively arranged at the water inlet side and the water outlet side of the pipeline and is used for routine and accident inspection.
5. The unit technology water supply anti-condensation device according to claim 1 or 2, wherein the water intake section of the technology water supply intake manifold is provided with a check valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420999192.0U CN222500434U (en) | 2024-05-10 | 2024-05-10 | Unit technology water supply anti-condensation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420999192.0U CN222500434U (en) | 2024-05-10 | 2024-05-10 | Unit technology water supply anti-condensation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222500434U true CN222500434U (en) | 2025-02-18 |
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ID=94548365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420999192.0U Active CN222500434U (en) | 2024-05-10 | 2024-05-10 | Unit technology water supply anti-condensation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222500434U (en) |
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2024
- 2024-05-10 CN CN202420999192.0U patent/CN222500434U/en active Active
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