CN202832672U - Circulating water balance water supply device - Google Patents
Circulating water balance water supply device Download PDFInfo
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- CN202832672U CN202832672U CN 201220507829 CN201220507829U CN202832672U CN 202832672 U CN202832672 U CN 202832672U CN 201220507829 CN201220507829 CN 201220507829 CN 201220507829 U CN201220507829 U CN 201220507829U CN 202832672 U CN202832672 U CN 202832672U
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Abstract
The utility model relates to a circulating water balance water supply device. The circulating water quantity of an existing steam-turbine generator is in needed of timely adaptability adjustment, and operation personnel needs to keep the stability of different water levels of two water pools to conduct circulating water quantity adjustment and water-replenishing valve adjustment. The circulating water balance water supply device comprises a high circulating water pool (2). The high circulating water pool is connected with a low circulating water pool (8) through a water level balance pipe (3), an overflow port (5) is arranged on the low circulating water pool, the high circulating water pool is connected with a water-replenishing valve (1), a water level measuring sensor (4) is arranged inside the low circulating water pool, and the high circulating water pool and the low circulating water pool are respectively connected with machine set condensers (7) through circulating water pump sets (6). The circulating water balance water supply device simplifies a circulating water operating system, reduces water-supply consumption of the circulating water, relatively reduces the running number of circulating water pumps, improves working efficiency, and reduces energy consumption.
Description
Technical field:
The utility model relates to a kind of circulating water balance water supply installation of Turbo-generator Set.
Background technique:
Other fluids such as Turbo-generator Set generally adopts the exchange heat cooling medium after circulating water carries out the steam acting at present, and the employing of part energy-saving power generation unit is air-cooled or hydrogen-cooled are as cooling medium.Domestic dry quenching power generation system mostly is Jiao Nai institute design unit, comprehensive cooling medium use amount reaches greatly geographical conditions and generally adopts circulating water as cooling medium, system mainly comprises circulating water pool, circulating water pump, spray equipment, the controls such as the pipeline that is connected between cooling tower and the equipment and valve, controlling device, the circulating water water source is that Yangtze River Water is sent into circulating water pool after treatment, the water in the circulating water pool through circulating water pump send in the condenser copper tube with the outer acting of pipe after steam carry out delivering to the back pool that falls after cooling sprayer cools off after the exchange heat and finish closed cycle.
Condenser vacuum remains on and guarantees unit safety, continuously operation more than the 90KPa in the N20-3.43 steam turbine set running, and generating efficiency is stable.It is that the extract system stable operation is extracted the air that enters condenser system out on the one hand that the condenser vacuum value is kept stable, is that circulating water flow satisfies the demands on the other hand, reduces the exhaust steam temperature.The supporting vapour condenser of N20-3.43 type steam turbine needs about 300,000 tons of quantity of circulating water, circulating water supply system to adopt isolated operation to supply water average every day in service, takes circulating water pool water level monitoring, pond make-up water measure.
Original circulating water supply system as shown in Figure 1, two groups of circulating water pool isolated operations, adjustment, the method for operation that circulating water pump is independently supplied with.Low circulating water pool monitoring water level height is H1, high circulating water pool monitoring highly is H2, the circulating water pool level monitoring arranges flow-off on the slightly high plane, keep the flow-off trace overflow, two circulating water pool monitoring water levels, water replenishing device etc. are independent to be shown and operation, keeps separately water level balance of two circulating water pools.The circulating water pump group is unit of supply separately, between two circulating water pump groups unicom pipeline is arranged, and can realize that one group of circulating water pump supplies two generator set simultaneously.The evaporation of being dispelled the heat of fraction steam is constantly carried out in circulating water pool cooling tower heat radiation, on average every day, each circulating water pool needed about 1300 tons of moisturizing, Turbo-generator Set can only be done accommodation when the dried furnaceman's of putting out condition changed, even carry out the method for operation of steam main operation cogeneration, steam flow is passive follows adjusting, the change of generated energy makes the corresponding change of steam exhaust temperature, quantity of circulating water needs timely adaptability to regulate, the operations staff need to keep the different stable levels in two ponds and carry out the quantity of circulating water adjustment, and water-feeding valve is regulated.
At present large turbo-type generator group circulation the nearly water source water intaking (use amount is large) such as adopts directly from the Changjiang river circulating water pool is not set, industrial field small power generation unit extensively arranges the circulation wet pit, the circulating water system water supply device has: circulation is utilized the PLC centralized control with the generating main body, by monitoring condensing water temperature SC sigmal control circulating water pump rotating speed water supply installation.Link to each other with Turbo-generator Set main body coherent signal by the circulation data capture, main running signal is carried out PLC control interlocking, auto-adjustment control with circulation parameter and main body professional equipment.By interlocked control, the water supply installation timely adjustment reduces manpower, but has control lag or too frequent, can not energy saving, and damage equipment; Adopt PLC control interlock, increase the DCS system burden; By monitoring condensing water temperature controlled circulation pump rotary speed, the passive fluctuation frequent cycle of dry quenching generator set systematic parameter water pump power consumption increases.
The model utility content:
The purpose of this utility model is that the problem for above-mentioned existence provides a kind of circulating water balance water supply installation, optimize the circulating water pump method of operation, increase work efficiency, reduce whole circulating water pump operation number of units, transient equiliblium two circulating water pool water level fluctuations trend conformity, keep circulatory system stable operation, unit safety operation.
Above-mentioned purpose realizes by following technological scheme:
Circulating water balance water supply installation, comprise high circulating water pool, described high circulating water pool connects low circulating water pool by the water level balance pipe, be provided with flow-off on the described low circulating water pool, described high circulating water pool connects water-feeding valve, Water level measuring sensor is installed in described low circulating water pool the inside, described high circulating water pool be connected low circulating water pool and connect the unit condenser by the circulating water pump group respectively.
Beneficial effect:
The utility model is innovated in original circulating water water supply installation system, utilizes the circulating water pool liquid level height different at original system, adopt " terrace-type is from pressure " supply with+" counterevidence explicit law " carry out two circulating water pool water level balances and regulate.Two circulating water pool water levels are merged implementing monitoring, water charging system is simplified, adjust unique circulating water pool moisturizing door aperture, keep two circulating water pool water level relative dynamic balances, reduce circulating cooling make-up water amount and pond spillway discharge, change former circulating water pump group working method in the time of water level in water pool transient equiliblium, guarantee under the prerequisite of safe operation in conjunction with working efficiency, flow and unit consumption are implemented the balance water supply scheme, guarantee that the low water level circulating water pool moves again in conjunction with circulating water pump optimization scheme more than or equal to a circulating water pump, keep the circulation water lever fluctuating, prevent the static change of pond liquid level, adjust the circulating water main-piping pressure identical, realize circulating water pool process pump group maximizing efficiency, according to the dried furnaceman's of putting out condition variation liquid level circulating water pool process pump group or high liquid level circulating water pool process pump supply flow are hanged down in the adjustment that affects of generator set efficient, optimize the circulating water pump method of operation, increase work efficiency, reduce whole circulating water pump operation number of units, transient equiliblium two circulating water pool water level fluctuations trend conformity, keep circulatory system stable operation, unit safety operation.Innovate in water system, simplify circulating water operation system, by circulating cooling make-up water joint-monitoring device, only need supervision low pool water level to adjust the purpose that the total door of head-tank moisturizing can be realized the transient equiliblium of circulating water pool water level, and reduce the consumption of circulating cooling make-up water, relatively reduce the operation number of units of circulating water pump, increase work efficiency, reduce energy consumption.This device has satisfied the demand of generator set to circulating water, has realized simultaneously the purpose of generator set safe operation.
Description of drawings:
The structural representation of circulating water supply system in Fig. 1, the prior art.
Fig. 2, structural representation of the present utility model.
Among the figure: 1, water-feeding valve, 2, high circulating water pool, 3, the water level balance pipe, 4, Water level measuring sensor, 5, flow-off, 6, the circulating water pump group, 7, unit condenser, 8, low circulating water pool, 9, connecting valve.
Embodiment:
Come the utility model is described further below in conjunction with accompanying drawing 1:
Embodiment 1:
Circulating water balance water supply installation, comprise high circulating water pool 2, described high circulating water pool connects low circulating water pool 8 by water level balance pipe 3, be provided with flow-off 5 on the described low circulating water pool, described high circulating water pool connects water-feeding valve 1, Water level measuring sensor 4 is installed in described low circulating water pool the inside, described high circulating water pool be connected low circulating water pool and connect unit condensers 7 by circulating water pump group 6 respectively.
Working procedure:
At first guarantee in the low circulating water pool circulating water pump group more than or equal to a pump operation during circulating water system water supply operation, keep the integral pond water lever fluctuating, prevent that the static constant elevated basin water level of low water level in water pool is uncontrollable, carrying out unit in conjunction with circulating water pump group optimized project again supplies water, monitor that simultaneously low circulating water pool 8 Water level measuring sensors 4 show that water level indicated value H(and H1 are relatively), H＜H1 regulates high circulating water pool water-feeding valve 1 increases rate of water make-up, the circulating water utilization height differential static pressure that high circulating water pool exceeds H2 enters into low circulating water pool 8 by water level balance pipe 3, monitor after water level in water pool increases that Water level measuring sensor 4 shows water level indicated value H, and keep H to be approximately equal to H1 by pond flow-off 5; Such as H〉H1 turns down high circulating water pool water-feeding valve 1 and reduces rate of water make-up, must guarantee in the unit operation that measuring transducer shows that water level H equals or is slightly larger than H1, keeps the transient equiliblium of two circulating water pool water levels; Maybe will hang down the regulation and control of interlocking of circulating water pool SEA LEVEL VARIATION and water-feeding valve, water level H＜H1 water-feeding valve is opened greatly automatically, H〉the H1 water-feeding valve turns down automatically, and other processes remain unchanged, and automatically keep the water level dynamic stability, realize automatically control.
Primary condition is that low circulating water pool follows the method for operation that pump operation keeps two water level in water pool dynamic changes and satisfies the unit demand more than or equal to one in the said process, regulate by different pool water level supervision, water-feeding valve simultaneously, and additional by the overflow of terrace-type automatic static-pressure, keep two water level in water pool transient equiliblium.
Claims (1)
1. circulating water balance water supply installation, comprise high circulating water pool, it is characterized in that: described high circulating water pool connects low circulating water pool by the water level balance pipe, be provided with flow-off on the described low circulating water pool, described high circulating water pool connects water-feeding valve, Water level measuring sensor is installed in described low circulating water pool the inside, described high circulating water pool be connected low circulating water pool and connect the unit condenser by the circulating water pump group respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220507829 CN202832672U (en) | 2012-09-27 | 2012-09-27 | Circulating water balance water supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220507829 CN202832672U (en) | 2012-09-27 | 2012-09-27 | Circulating water balance water supply device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202832672U true CN202832672U (en) | 2013-03-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220507829 Expired - Lifetime CN202832672U (en) | 2012-09-27 | 2012-09-27 | Circulating water balance water supply device |
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| Country | Link |
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| CN (1) | CN202832672U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106522304A (en) * | 2016-09-18 | 2017-03-22 | 中国核电工程有限公司 | Self flow pressure difference regulating water supply system |
| CN112923351A (en) * | 2021-01-29 | 2021-06-08 | 广船国际有限公司 | Active water level balancing method for marine hot well and ship |
| CN114183333A (en) * | 2021-10-28 | 2022-03-15 | 浙江省水利河口研究院(浙江省海洋规划设计研究院) | Submersible pump testing device and method |
-
2012
- 2012-09-27 CN CN 201220507829 patent/CN202832672U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106522304A (en) * | 2016-09-18 | 2017-03-22 | 中国核电工程有限公司 | Self flow pressure difference regulating water supply system |
| CN112923351A (en) * | 2021-01-29 | 2021-06-08 | 广船国际有限公司 | Active water level balancing method for marine hot well and ship |
| CN112923351B (en) * | 2021-01-29 | 2023-01-06 | 广船国际有限公司 | Active water level balancing method for marine hot well and ship |
| CN114183333A (en) * | 2021-10-28 | 2022-03-15 | 浙江省水利河口研究院(浙江省海洋规划设计研究院) | Submersible pump testing device and method |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130327 |
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| CX01 | Expiry of patent term |