CN105064446A - Accident safety method and system for water supply - Google Patents
Accident safety method and system for water supply Download PDFInfo
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- CN105064446A CN105064446A CN201510429015.4A CN201510429015A CN105064446A CN 105064446 A CN105064446 A CN 105064446A CN 201510429015 A CN201510429015 A CN 201510429015A CN 105064446 A CN105064446 A CN 105064446A
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Abstract
The invention relates to an accident safety method and system for water supply. A circulating cooling water supply pump sucks cooling water from a circulating pump station water suction well and delivers the cooling water to an equipment flow pipe; return water returns into the circulating pump station water suction well; in the case that the circulating cooling water supply pump fails or powers off, an accident diesel engine water supply pump automatically starts up, and before the pump starts up, an accident water tank supplies water to equipment; the accident water tank and the circulating pump station water suction well form a safety water supply circulation loop through an inflow pipe and an overflow pipe; during water supply, the circulating cooling water supply pump supplements water to the accident water tank; water level of the accident water tank is observed in a control room through a level meter. Compared with the prior art, the accident safety method and system for water supply has the advantages that the accident water tank is disposed in column space of a workshop, load of the workshop is never increased, and investment is low; the safety water supply circulation loop is formed through the inflow pipe, an outflow pipe and a lower horizontal overflow pipe, the water in the accident water tank is kept flowing, water worsening is avoided at the premise of meeting safety of water supply, and the anti-freezing problem is solved.
Description
Technical field
The present invention relates to industrial production safety water supply technical field, particularly relate to a kind of fail-safe method of supplying water and water system.
Background technology
The way of supplying water that the fail-safe water systems such as current iron and steel enterprise continuous casting, cold rolling, galvanization production line generally all adopt Diesel engine pump and the safe water tower of a high position to combine, or the way of supplying water adopting Diesel engine pump and high-order security incident water tank to combine.Through on-the-spot practical operation situation, there is following shortcoming in above-mentioned two kinds of methods: 1) Generally Recognized as safe pressure of supply water all requires more than 0.5MPa, builds high-order safe water tower, and highly needing more than 50 meters could meet, and invests high; 2) establish security incident water tank that factory building load is increased in factory roof, northern area is antifreeze owing to considering in addition, need establish electric tracing, waste electric energy; Easily cause water tank to freeze during power failure and thus there is potential safety hazard; 3) water in accident water tank or water tower does not flow, and water quality easily degenerates.
Summary of the invention
The invention provides a kind of fail-safe method of supplying water, accident water tank is set in factory building column space, does not increase factory building load, small investment; Form safety water supply closed circuit by water inlet pipe, outlet pipe and lower Horizontal overflow pipe, the water in accident water tank keeps flow regime, can prevent again water quality from degenerating, and solve antifreeze problem meeting safety water supply while; Invention also provides the water system that can realize the method.
In order to achieve the above object, the present invention realizes by the following technical solutions:
A kind of fail-safe method of supplying water, comprises the steps:
1) recirculated cooling water supply-water pump extracts cooling water from water circulating pump station absorbing well, absorption well, and equipment water inlet pipe is delivered in water pressurization, and backwater returns after being cooled by cooling tower in water circulating pump station absorbing well, absorption well also to be formed normally produces water-flow circuit;
2) when recirculated cooling water supply-water pump breaks down or has a power failure, accident diesel engine supply-water pump starts automatically, is supplied water before accident diesel engine supply-water pump reaches normal operating conditions by accident water tank by outlet pipe to equipment;
3) accident water tank in factory building column space is arranged on by water inlet pipe, form safety water supply closed circuit between bleed off pipe and water circulating pump station absorbing well, absorption well; Wherein the part of bleed off pipe in accident water tank is lower Horizontal overflow pipe, and the water overflow of accident water tank bottom can be made to water circulating pump station absorbing well, absorption well, simultaneously to the moisturizing of accident water tank when recirculated cooling water supply-water pump supplies water; Accident cistern water level is observed in control room by content gauge.
For realizing a kind of water system of fail-safe method of supplying water, comprise the accident water tank be arranged in factory building column space, water circulating pump station absorbing well, absorption well, recirculated cooling water supply-water pump and accident diesel engine supply-water pump, described accident water tank connects water circulating pump station absorbing well, absorption well, by outlet pipe connection device water inlet pipe by bleed off pipe; Formed normally produce water-flow circuit and accident watering cycle loop additionally by recirculated cooling water supply-water pump, accident diesel engine supply-water pump between equipment water inlet pipe and water circulating pump station absorbing well, absorption well; Normal production water-flow circuit, additionally by water inlet pipe connection accident water tank, establishes content gauge in accident water tank.
The part of described bleed off pipe in accident water tank is lower Horizontal overflow pipe, and ventilating pipe and catch basin are established in bleed off pipe top, and the diameter of bleed off pipe is greater than water inlet pipe diameter.
Described accident water tank bottom establishes blow-down pipe to connect bleed off pipe, and hand sluice valve established by blow-down pipe.
Described accident radiator drain establishes flap valve, and Hand-operated butterfly valve established by the pipeline on flap valve both sides.
Described accident tank inlet pipe establishes piping filter, manual ball valve established by the pipeline on piping filter both sides.
The output of described content gauge is by cable connection control room display.
Compared with prior art, the invention has the beneficial effects as follows:
Accident water tank is set in factory building column space, does not increase factory building load, small investment; Form safety water supply closed circuit by water inlet pipe, outlet pipe and lower Horizontal overflow pipe, the water in accident water tank keeps flow regime, can prevent again water quality from degenerating, and solve antifreeze problem meeting safety water supply while.
Accompanying drawing explanation
Fig. 1 is the flow chart of method of supplying water of the present invention.
Fig. 2 is the structural representation one of water system of the present invention.
Fig. 3 is the structural representation two of water system of the present invention.
In figure: 1. accident water tank 2. times Horizontal overflow pipe 3. ventilating pipe 4. catch basin 5. bleed off pipe 6. water circulating pump station absorbing well, absorption well 7. piping filter 8. manual ball valve 9. water inlet pipe 10. content gauge 11. control room 12. blow-down pipe 13. hand sluice valve 14. Hand-operated butterfly valve 15. flap valve 16. equipment 17. cooling tower 18. recirculated cooling water supply-water pump 19. accident diesel engine supply-water pump 20. factory building column 21. outlet pipes
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described further:
Seeing Fig. 1, is the flow chart of the method for the invention, and a kind of fail-safe method of supplying water of the present invention, comprises the steps:
1) recirculated cooling water supply-water pump 18 extracts cooling water from water circulating pump station absorbing well, absorption well 6, and equipment 16 water inlet pipe is delivered in water pressurization, and backwater returns after being cooled by cooling tower 17 in water circulating pump station absorbing well, absorption well 6 also to be formed normally produces water-flow circuit;
2) when recirculated cooling water supply-water pump 18 breaks down or has a power failure, accident diesel engine supply-water pump 19 starts automatically, is supplied water before accident diesel engine supply-water pump 19 reaches normal operating conditions by accident water tank 1 by outlet pipe 21 pairs of equipment 16;
3) accident water tank 1 in factory building column 20 space is arranged on by water inlet pipe 9, form safety water supply closed circuit between bleed off pipe 5 and water circulating pump station absorbing well, absorption well 6; Wherein the part of bleed off pipe 5 in accident water tank 1 is lower Horizontal overflow pipe 2, water overflow bottom accident water tank 1 can be made to water circulating pump station absorbing well, absorption well 6, simultaneously to accident water tank 1 moisturizing when recirculated cooling water supply-water pump 18 supplies water; Accident water tank 1 water level is observed in control room by content gauge 10.
Water system for realizing a kind of fail-safe method of supplying water of the present invention, comprise the accident water tank 1 be arranged in factory building column 20 space, water circulating pump station absorbing well, absorption well 6, recirculated cooling water supply-water pump 18 and accident diesel engine supply-water pump 19, described accident water tank 1 connects water circulating pump station absorbing well, absorption well 6 by bleed off pipe 5, by outlet pipe 21 connection device 16 water inlet pipe; Formed normally produce water-flow circuit and accident watering cycle loop additionally by recirculated cooling water supply-water pump 18, accident diesel engine supply-water pump 19 between equipment water inlet pipe 16 and water circulating pump station absorbing well, absorption well 6; Normal production water-flow circuit, additionally by water inlet pipe 9 connection accident water tank 1, establishes content gauge 10 in accident water tank 1.
The part of described bleed off pipe 5 in accident water tank 1 is lower Horizontal overflow pipe 2, and ventilating pipe 3 and catch basin 4 are established in bleed off pipe 5 top, and the diameter of bleed off pipe 5 is greater than water inlet pipe 21 diameter.
Establish blow-down pipe 12 to connect bleed off pipe 5 bottom described accident water tank 1, blow-down pipe 12 is established hand sluice valve 13.
Described accident radiator drain 21 establishes flap valve 15, and Hand-operated butterfly valve 14 established by the pipeline on flap valve 15 both sides.
Described accident tank inlet pipe 9 establishes piping filter 7, manual ball valve 14 established by the pipeline on piping filter 7 both sides.
The output of described content gauge 10 is by cable connection control room 11 display.
The post that accident water tank 1 is placed on high span workshop steel structure column 20 by the present invention is aerial, production line is adopted to supply water as accident water tank 1 moisturizing, reduce rate of water make-up as far as possible, guiding device is established in accident water tank 1, periodical feeding pumping plant absorbing well, absorption well 6 is spilt into from bleed off pipe 5 after accident water tank 1 is full of water, water in accident water tank 1 remains flow regime, there is not stagnant water, ensure that water quality does not degenerate and do not freeze.
The water inlet pipe of the direct connection device 16 of accident radiator drain 21, outlet pipe 21 only establish flap valve 15 and the Hand-operated butterfly valve 14 that overhauls for flap valve 15 and, save power failure quck-opening valve compared with ordinary accident water tank, and the safety of water supply can be improved.When normally producing, normal production water-flow circuit supplies water to equipment 16, and due to the existence of hydraulic pressure, the water in accident water tank 1 can not be outflowed by outlet pipe 21, because outlet pipe 21 is provided with flap valve 15, the normal water produced in water-flow circuit also can not flow to accident water tank 1.
Factory building highest point should be selected during installation accident water tank 1, be generally cooling tower across the space that formed of steel structural upright column in, the empty form of the shape cooperation post of accident water tank 1 is determined, is non-standard water tank.Accident water tank 1 is provided with inspection platform and catladder, and walks on stage with crane and be connected, and guarantees that normal service is safeguarded.Compared with usual way accident water tank being placed on factory roof, method of supplying water of the present invention and system can play antifreeze effect and reduce again factory building load, and have saved occupation of land and cost of investment.
Accident tank inlet pipe 9 connects normally produces water-flow circuit, and general employing DN25 steel pipe, because caliber is less, arranges piping filter 7 at contact place, prevent water inlet pipe 9 from blocking.
Lower Horizontal overflow pipe 2 is set in accident water tank 1, its overfall is located at bottom accident water tank 1, accident water tank 1 is full of after water by bleed off pipe 5 overflow, bleed off pipe 5 end is connected to periodical feeding pumping plant absorbing well, absorption well 6, because water inlet and overflow form closed circuit, water in maintenance accident water tank 1 is in flow regime all the time, there is not stagnant water, ensure that water quality does not degenerate and do not freeze.
The top of bleed off pipe 5 outside accident water tank 1 arranges ventilating pipe 3 and catch basin 4, guarantees that bleed off pipe 5 does not produce siphonage.Suppose that water inlet pipe 9 caliber is DN25, because the water in water inlet pipe 9 is pressure current, and the water in bleed off pipe 5 is gravity current, so bleed off pipe 5 caliber should adopt DN50, guarantees that the water in accident water tank 1 can not overflow from top cover.
Accident water tank 1 is provided with content gauge 10, signal can be delivered on the display in control room 11, and whether operator on duty can be in full water state by the water tank of observation accident at any time 1.In addition, whether operator on duty has current to judge safety water supply system whether normal operation by routine observation bleed off pipe 5 at water circulating pump station absorbing well, absorption well 6 place, system is normally run to have current to represent, does not have flow meter that the faults such as existing water inlet pipe 9 blocking are shown, need carry out malfunction elimination.Even if block, because the water in accident water tank 1 is in full water state always, also safety water supply can not be affected.
Claims (7)
1. a fail-safe method of supplying water, is characterized in that, comprises the steps:
1) recirculated cooling water supply-water pump extracts cooling water from water circulating pump station absorbing well, absorption well, and equipment water inlet pipe is delivered in water pressurization, and backwater returns after being cooled by cooling tower in water circulating pump station absorbing well, absorption well also to be formed normally produces water-flow circuit;
2) when recirculated cooling water supply-water pump breaks down or has a power failure, accident diesel engine supply-water pump starts automatically, is supplied water before accident diesel engine supply-water pump reaches normal operating conditions by accident water tank by outlet pipe to equipment;
3) accident water tank in factory building column space is arranged on by water inlet pipe, form safety water supply closed circuit between bleed off pipe and water circulating pump station absorbing well, absorption well; Wherein the part of bleed off pipe in accident water tank is lower Horizontal overflow pipe, and the water overflow of accident water tank bottom can be made to water circulating pump station absorbing well, absorption well, simultaneously to the moisturizing of accident water tank when recirculated cooling water supply-water pump supplies water; Accident cistern water level is observed in control room by content gauge.
2. for realizing the water system of a kind of fail-safe method of supplying water according to claim 1, it is characterized in that, comprise the accident water tank be arranged in factory building column space, water circulating pump station absorbing well, absorption well, recirculated cooling water supply-water pump and accident diesel engine supply-water pump, described accident water tank connects water circulating pump station absorbing well, absorption well, by outlet pipe connection device water inlet pipe by bleed off pipe; Formed normally produce water-flow circuit and accident watering cycle loop additionally by recirculated cooling water supply-water pump, accident diesel engine supply-water pump between equipment water inlet pipe and water circulating pump station absorbing well, absorption well; Normal production water-flow circuit, additionally by water inlet pipe connection accident water tank, establishes content gauge in accident water tank.
3. a kind of fail-safe water system according to claim 2, is characterized in that, the part of described bleed off pipe in accident water tank is lower Horizontal overflow pipe, and ventilating pipe and catch basin are established in bleed off pipe top, and the diameter of bleed off pipe is greater than water inlet pipe diameter.
4. a kind of fail-safe water system according to claim 2, is characterized in that, described accident water tank bottom establishes blow-down pipe to connect bleed off pipe, and hand sluice valve established by blow-down pipe.
5. a kind of fail-safe water system according to claim 2, is characterized in that, described accident radiator drain establishes flap valve, and Hand-operated butterfly valve established by the pipeline on flap valve both sides.
6. a kind of fail-safe water system according to claim 2, is characterized in that, described accident tank inlet pipe establishes piping filter, manual ball valve established by the pipeline on piping filter both sides.
7. a kind of fail-safe water system according to claim 2, is characterized in that, the output of described content gauge is by cable connection control room display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510429015.4A CN105064446B (en) | 2015-07-21 | 2015-07-21 | Accident safety method and system for water supply |
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| CN201510429015.4A CN105064446B (en) | 2015-07-21 | 2015-07-21 | Accident safety method and system for water supply |
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| CN105064446A true CN105064446A (en) | 2015-11-18 |
| CN105064446B CN105064446B (en) | 2017-01-25 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105604135A (en) * | 2016-03-07 | 2016-05-25 | 上海市城市建设设计研究总院 | Overflow device of pump station circulation cooling water tank |
| CN106825472A (en) * | 2017-03-29 | 2017-06-13 | 中天钢铁集团有限公司 | Continuous cast mold accident water safety interlock system and its control method |
| CN110804683A (en) * | 2019-11-08 | 2020-02-18 | 山西太钢不锈钢股份有限公司 | Power-loss emergency device and method for blast furnace cooling water system |
| CN111947026A (en) * | 2020-08-04 | 2020-11-17 | 鞍钢股份有限公司 | Method for rapidly judging whether gate valve flashboard between nitrogen pressure tank and water replenishing pump falls off or not |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN106825472A (en) * | 2017-03-29 | 2017-06-13 | 中天钢铁集团有限公司 | Continuous cast mold accident water safety interlock system and its control method |
| CN110804683A (en) * | 2019-11-08 | 2020-02-18 | 山西太钢不锈钢股份有限公司 | Power-loss emergency device and method for blast furnace cooling water system |
| CN111947026A (en) * | 2020-08-04 | 2020-11-17 | 鞍钢股份有限公司 | Method for rapidly judging whether gate valve flashboard between nitrogen pressure tank and water replenishing pump falls off or not |
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| Publication number | Publication date |
|---|---|
| CN105064446B (en) | 2017-01-25 |
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