CN105113579A - Long-distance large-diameter high-altitude pipeline water conveying system and operating method - Google Patents
Long-distance large-diameter high-altitude pipeline water conveying system and operating method Download PDFInfo
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- CN105113579A CN105113579A CN201510622609.7A CN201510622609A CN105113579A CN 105113579 A CN105113579 A CN 105113579A CN 201510622609 A CN201510622609 A CN 201510622609A CN 105113579 A CN105113579 A CN 105113579A
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Abstract
The invention discloses a long-distance large-diameter high-altitude pipeline water conveying system and an operating method. The water conveying system comprises a water source point, a first-level pump station, a second-level pump station, a third-level pump station, a third-level pump station water outlet pond, a water conveying tunnel, a high-level water storage pond, pipelines, valves, an adjusting pond and a low-level water storage pond. The water source point is connected with a first-level pump station water inlet pond through one water conveying pipeline, the first-level pump station is connected with a second-level pump station water inlet pond through one water conveying pipeline, the second-level pump station is connected with a third-level pump station water inlet pond through one water conveying pipeline, the third-level pump station is connected with the third-level pump station water outlet pond through one water conveying pipeline, the third-level pump station water outlet pond is connected with the high-level water storage pond through the water conveying tunnel, and a water outlet of the high-level water storage pond is connected with the low-level water storage pond and a water needing point through the corresponding water conveying pipelines. Regional water supply requirements can be met, the regional social and economic development is accelerated, water resource allocation is optimized, water is used scientifically and reasonably, and construction of water-saving society is promoted.
Description
Technical field
The present invention relates to a kind of water-carriage system, specifically a kind of long distance Large Diameter Pipeline High aititude water delivery in pipeline system and method for operating.
Background technology
In China's economy rapid growth, along with the price increase of resource, cost of transportation is more and more higher, and environment pollution is also more and more serious, therefore adopts Cemented filling in a large number.Long-distance transportation through pipeline business is in the ascendant at home, because it has the advantages such as energy-conserving and environment-protective, loss are low, equalization stable to receive the welcome of increasing resource owner.Cemented filling is lower than highway transportation expense, can meet the requirement of modern factories quantity-produced, and the service life of pipeline is 30 years, so economic benefits comparison is considerable.
Pipeline transport is energy-saving and emission-reduction and the environmental protection project of the positive popularization of country at present, and meeting the sustainable development requirement of country, is the project that national industrial policies are supported.Cemented filling expense significantly reduces than highway transportation expense, except the own operations cost of pipeline, do not produce other fees, pipe-line transportation system implements pipe-line transportation system Automated condtrol by monitoring system, adopt Cemented filling, improve Business Economic Benefit, reduce the Important Action of expense cost, therefore, the present invention has limitless prospect.
The frequent generation of arid in recent years continues with long-term, brings huge loss not only to the economy in each area, also causes the ecological environment problem such as shortage of water resources, Cut off.Drought influence basin has been main expand to the fields such as industry, city, ecology by agricultural, water is striven in industrial or agricultural, water is striven in town and country and national economy to tie up ecological water phenomenon more and more serious.Such as: particularly continuous 4 years arids, Fuxian Lake water level in 2013 is caused to create the lowest water level since having observational record.Center of Yuxi city, Tonghai County, Jiangchuan County, Huaning County, Fuxian Lake periphery be average water total resources 8.8032 hundred million m3 for many years, by demographics water resource of per capita 706m3 in 2010, be only 17% of the whole province water resource of per capita 4224m3, particularly inner city and river and mountain, the counties and districts such as maritime enrich level index according to international water resource, water resource of per capita is less than 500m3, belongs to the serious area in short supply of water resource.
Along with the development of national economy, center of Yuxi city, maritime county town, river and mountain county town, Huaning county town, Fuxian Lake periphery water shortage problem also will be more and more serious, and lack of water will seriously govern the socioeconomic development in Yuxi.Seek " three lakes " periphery and can use water source, realize protection plateau lake under development, control water, control source cut dirt, water-saving and emission-reducing is the most important thing that protection is administered.But along with economic society continue, fast-developing; the quickening of urbanization process and improving constantly of living standards of the people; Fuxian Lake, River, Lake Xingyun have been subjected to the serious threat increased gradually from many-sided pollution sources such as industry, agricultural and sanitary sewages, and Lake variation work is shouldered heavy responsibilities.Because main water quality worsens, Yuxi inner city, Jiangchuan County and Tonghai County have become water quality areas of serious.Administer water environment, water prevention pollutes, control water quality deterioration, the task of protection Fuxian Lake, improvement River, Lake Xingyun seems quite urgent and arduous.
Summary of the invention
The object of the present invention is to provide a kind of long distance Large Diameter Pipeline High aititude water delivery in pipeline system and method for operating, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the invention provides following technical scheme:
A kind of long distance Large Diameter Pipeline High aititude water delivery in pipeline system, three stage pump station discharge bay 30 is entered after arriving elevation 2040.00m after adopting three times' lifting, by tunnel gravity flow to high-order reservoir 1, by water delivery supervisor, main pipe communicating pipe, delivery main and delivery pipe branch gravity flow, the high-quality water resource of water source point 1 is being adjusted to serious water shortage region.The main technique of water delivery section adopts self-flowing pastefill pattern, all installs automatic makeup outlet valve, there will be the vibrations that air-resistance phenomenon causes field pipeline in operation at all height point, when mending outlet valve and breaking down, there is pulling vacuum, can produce and make water attack up, time serious, can booster be caused.In order to prevent the generation of above-mentioned phenomenon, adopting the controllable full-section pipe-flow method of operation, namely adopting piston fluid control valve at terminal water outlet, control the flow of conveying, hydraulic grade line is raised ensure that all height point is full-section pipe-flow.
A kind of long distance Large Diameter Pipeline High aititude water delivery in pipeline system, comprise water source point, one-level pumping plant, secondary pumping station, three stage pump station, three stage pump station discharge bay, water-conveyance tunnel, high-level reservoir, pipeline and valve, regulating reservoir and low level reservoir, described inverted-siphon section by water source point, electric gate valve A, aqueduct, automatic makeup outlet valve A and electric gate valve B, wherein the height above sea level of one-level pumping plant intake pool lower than the height above sea level of water source point to form inverted siphon structure; One-level pumping plant is overhauled ball valve A formed by one-level pumping plant intake pool, electric butterfly valve A, water hammer discharge valve A, centrifugal pump of horizontal axis A, electronic pump-controlling valve A, hydraulic control, the delivery port of one-level pumping plant intake pool connects the end that draws water of centrifugal pump of horizontal axis A, the discharge ends of centrifugal pump of horizontal axis A connects electronic pump-controlling valve A, hydraulic control maintenance ball valve A and output pipe successively, the output pipe of described hydraulic control maintenance ball valve A output is arranged the arm of band water hammer discharge valve A, the arm of band water hammer discharge valve A connects one-level pumping plant intake pool; Described one-level pumping station layout 6 centrifugal pump of horizontal axis A, in 6 centrifugal pump of horizontal axis A, 4 is working barrel, and 2 is stand by pump, and 6 centrifugal pump of horizontal axis A connect with corresponding Lubricating-oil Station; 3 groups of water hammer discharge valve A are set in described one-level pumping plant, and the input often organizing water hammer discharge valve A all connects a manual ball valve; The entrance of described secondary pumping station arranges automatic makeup outlet valve B and flow control valve A, and other structure is identical with one-level pumping plant; The entrance of described three stage pump station arranges automatic makeup outlet valve C and flow control valve B, and other structure is identical with one-level pumping plant; Described one-level pumping plant discharge bay is connected by aqueduct, arranges automatic makeup outlet valve D and flow control valve C; Described water-conveyance tunnel is by gravity flow mode, and tunnel entrance connects triplex outlet pond, and tunnel outlet connects high-level reservoir; The delivery port of described high-level reservoir connects low level reservoir by aqueduct and needs water spot; The delivery port of described high-level reservoir is arranged electric gate valve A, the design that the middle part of aqueduct is remerged by first bifurcated, effectively play the power effect that disappears, to pipe protection; Pipeline big rise and fall along the line, therefore Gao Dian position, many places is provided with automatic makeup outlet valve, many places low dot location is provided with absorption basin, and the front end of absorption basin connects the needle valve and butterfly valve successively; Described regulating reservoir utilizes aqueduct to be connected to form bypass line, is separated by low level reservoir as required and implements; The described water inlet of low level reservoir and the junction of aqueduct are arranged is with pressure oscillation to put the pipeline of valve B and ball valve B in advance to low level reservoir; Described low level reservoir delivery port arranges electric gate valve B, and by aqueduct and low level reservoir, regulating reservoir is connected to needs water spot.
As the further scheme of the present invention: the method for operating of described long distance Large Diameter Pipeline High aititude water delivery in pipeline system is:
(1) one-level pumping plant intake pool water inlet:
The unlatching of a, valve: after being full of water in pipeline, first opens the electric gate valve A of inverted-siphon section entrance, then opens the electric gate valve B of inverted-siphon section outlet, pours water in one-level pumping plant intake pool 6;
The closedown of b, valve: when one-level pumping plant intake pool poured water and work as pumping plant shut down after waste for avoiding the overflow in pond to cause water source, now should close inverted-siphon section outlet electric gate valve B, then close inverted-siphon section entrance electric gate valve A.
(2) pumping plant main pump start-up operation step:
1., check before start:
A. each accessory system of on-the-spot LCU cabinet, main pump is powered normally, and communication is normally also beaten at remote location;
B. the electric butterfly valve A of pumping plant influent side at different levels, electric butterfly valve B, electric butterfly valve C is detected, each pumping plant outlet side electronic pump-controlling valve A, electronic pump-controlling valve B, electronic pump-controlling valve C, and the power supply that ball valve A, hydraulic control maintenance ball valve B are overhauled in hydraulic control, ball valve C is overhauled in hydraulic control is normal, beats and there is no fault-signal at remote location;
C. automated location got to by two hydraulic pumps of hydraulic control maintenance ball valve A, hydraulic control maintenance ball valve B and hydraulic control maintenance ball valve C;
D. soft starting device is powered normally, fault-free signal, and soft start is at remote location;
E. each detecting element alarm free of the pump group of pumping plant at different levels, fault-signal;
F. the manual ball valve 35 that water hammer is released on arm is in open mode, and water hammer discharge valve A is in closed condition.
2., main pump setting up procedure:
A. open electric butterfly valve A, electric butterfly valve B and the electric butterfly valve C of each pumping plant main pump import department, open hydraulic control maintenance ball valve A, hydraulic control maintenance ball valve B and hydraulic control maintenance ball valve C;
B. the outlet valve opened on each pumping plant main pump pump housing is exhausted, until close after having water full packages to flow out;
C. technical water supply valve is opened and flow is normal;
D. start Lubricating-oil Station 34, the flow that Lubricating-oil Station 34 exports and pressure normal and keep 3 minutes;
E. start main pump, main pump rotating speed reaches specified 95%, and pump chamber pressure reaches rated pressure 90%;
F. electronic pump-controlling valve A, electronic pump-controlling valve B and electronic pump-controlling valve C open, if motor reaches rated speed, pump-controlling valve does not have action main pump to shut down in 10 seconds;
3., main pump detects after starting:
A. pump discharge is monitored, with design load comparison;
B. revolution speed is monitored, with design load comparison;
C. pump intake lateral pressure is monitored, for checking NPSH value;
D. each impeller chamber pressure is monitored;
E. monitoring bearing vibration, is no more than 4.5mm/s;
F. the temperature of each bearing is monitored, journal bearing and thrust bearing alarm temperature 100 ° of C, emergency shutdown temperature 150 ° of C;
G. monitor main shaft throw, be no more than 4.5mm/s;
H. current of electric is monitored;
I. monitor motor bearings temperature-100 ° C to report to the police, 150 ° of C tripping operations;
More than detect data normal, complete main pump and start.
(3) main pump shutdown operation step:
A. order is shut down to main pump;
B. electronic pump-controlling valve A, electronic pump-controlling valve B and electronic pump-controlling valve C is closed;
C. in 4 seconds, electronic pump-controlling valve A, electronic pump-controlling valve B and electronic pump-controlling valve C are closed to 90%, remaining 10% closed in 10 seconds, sent and shut down triggering signal to motor;
D., when the positive rotating speed of main pump is less than 5%, electronic pump-controlling valve A, electronic pump-controlling valve B and electronic pump-controlling valve C close completely;
E. main pump shuts down;
F. Lubricating-oil Station works on 3 minutes, abundant cooling bearing;
G. stop Lubricating-oil Station and close mechanical seal rinsing water.
As the further scheme of the present invention: a kind of long distance Large Diameter Pipeline High aititude water delivery in pipeline system; in main pump shutdown operation step; lost efficacy or time-out when electronic pump-controlling valve A10, electronic pump-controlling valve B18 and electronic pump-controlling valve C26 close, hydraulic control maintenance ball valve A11, hydraulic control maintenance ball valve B19 and hydraulic control maintenance ball valve C27 get involved and close.In valve closing process, when producing pressure oscillation, and when exceeding the high-low pressure that water hammer releases set by A8, the water hammer A8 that releases can open rear automatic closedown automatically, effectively guarantees protective conduit.
As the further scheme of the present invention: a kind of long distance Large Diameter Pipeline High aititude water delivery in pipeline system, balance one-level pumping plant, the pond water yield between secondary pumping station and three stage pump station, formulate the method that centralized control center controls one-level pumping plant, secondary pumping station and three stage pump station chain startup and stop, concrete operation step is as follows:
(1) the normal startup of pumping plant: first must be full of water in pipeline, starts the 1# series from each pumping plant in four main pumps, restarts 2# series, until 4# series startup when 1# series main pump starts successfully.
(2) normal start-up operation step: flow control valve A13, flow control valve B21 that confirmation one-level pumping plant, secondary pumping station and triplex export, flow control valve C29 are open mode;
A, confirm that three manual ball valves in each Water Hammer valve front end 35 are for open mode, three water hammer discharge valve A8, water hammer discharge valve B16, water hammer discharge valve C25 are closed condition;
B. confirm that each pumping plant head-tank water yield is sufficient, two fire pumps are beaten automatically, and ensure that pipeline is unobstructed.
The technical water supply valve of c, the 1# main pump opening one-level pumping plant, the 1# main pump of secondary pumping station, the 1# main pump of three stage pump station, ensures that main pump shaft and oil system have cooling water;
The hydraulic control maintenance ball valve A11 of d, confirmation one-level pumping plant 1# main pump outlet is open mode, confirm that electronic pump-controlling valve A10 is closed condition, open main pump inlet electric butterfly valve A7, main pump A is exhausted, the outlet valve opened on the pump housing is exhausted, until close after having water full packages to flow out;
E, confirmation secondary pumping station 1# main pump outlet hydraulic control maintenance ball valve B19 are open mode, confirm that electronic pump-controlling valve B18 is closed condition, open entrance electric butterfly valve B15, main pump A is exhausted, the outlet valve opened on the pump housing is exhausted, until close after having water full packages to flow out;
F, confirmation three stage pump station 1# main pump outlet hydraulic control maintenance ball valve C27 are open mode, confirm that electronic pump-controlling valve C26 is closed condition, open entrance electric butterfly valve C23, main pump A is exhausted, the outlet valve opened on the pump housing is exhausted, until close after having water full packages to flow out;
G, startup one-level pumping plant 1# main pump;
H, when 14, secondary pumping station intake pool water is to lowest water level 3.3 meters, starts the 1# main pump A of secondary pumping station and send water to three stage pump station;
I, when three stage pump station intake pool water level is to lowest water level 3.3 meters, starts the 1# main pump B of three stage pump station and send water to three stage pump station discharge bay 30;
J, when the 1# series main pump of three times' lifting pumping plant starts successfully also normal operation, starting the main pump of 2# series successively.
K, from prime pumping plant to rear class pumping plant step by step by platform start, until start 4 main pumps, reach metered flow.
Note: can preferentially start if certain grade of pumping plant pond liquid level is high, then according to all the other pumping plant water level in water pool determination boot sequences.
(3) orderly shutdown operating procedure
A. confirm the pond liquid level of pumping plant at different levels before stopping, ensure that pond, each station is low fluid level condition as far as possible, facilitate next pumping plant to start or maintenance.
B. secondary pumping station intake pool 14 or three stage pump station intake pool 22 water level high: stop one-level pumping plant 1# main pump → stop secondary pumping station 1# main pump → stop three stage pump station 1# main pump;
C. press series corresponding to pumping plant successively to shut down, when one-level pumping plant has stopped 4 main pumps, two, three stage pump station can select the shutdown sequence of last main pump according to pond liquid level;
D. after one-level pumping plant has stopped pump, close the electric gate valve B5 of inverted-siphon section outlet, then close the electric brake A2 of inverted-siphon section entrance.
As the further scheme of the present invention: a kind of long distance Large Diameter Pipeline High aititude water delivery in pipeline system, inverted-siphon segment pipe is installed automatic makeup outlet valve A4.
As the further scheme of the present invention: a kind of long distance Large Diameter Pipeline High aititude water delivery in pipeline system, the caliber of inverted-siphon section is 1.8m, and the caliber of water lift pipeline and aqueduct is 1.2m.
As the further scheme of the present invention: a kind of long distance Large Diameter Pipeline High aititude water delivery in pipeline system, the water inlet of described secondary pumping station intake pool sets gradually automatic makeup outlet valve B12 and flow control valve A13, the water inlet of three stage pump station intake pool sets gradually automatic makeup outlet valve C20 and flow control valve B21, the water inlet of three stage pump station discharge bay sets gradually automatic makeup outlet valve D28 and flow control valve C29.
As the further scheme of the present invention: a kind of long distance Large Diameter Pipeline High aititude water delivery in pipeline system, one-level booster station hoisting depth is 223.70m, and the dischargeable capacity of one-level pumping plant intake pool is 12000m
3, waterline total length 1460m, aqueduct diameter is 1.2m, and the installed power of one-level booster station is 12000Kw; The hoisting depth of two-stage pressurizing pumping plant is 339.80m, and the dischargeable capacity of secondary pumping station intake pool is 2300m
3, waterline total length 2690m, aqueduct diameter is 1.2m, and the installed power of two-stage pressurizing pumping plant is 18900Kw; Three times' lifting pumping plant promotes 340.5m, and the dischargeable capacity of three stage pump station intake pool is 2300m
3, waterline total length 1980m, the diameter of aqueduct is 1.2m, and the installed power of three times' lifting pumping plant is 18900Kw.
As the further scheme of the present invention: a kind of long distance Large Diameter Pipeline High aititude water delivery in pipeline system, open horizontal multi-stage centrifugal pump during centrifugal pump of horizontal axis A9, centrifugal pump of horizontal axis B17 and centrifugal pump of horizontal axis C24 all adopt, in open horizontal multi-stage centrifugal pump unit design discharge be 0.625m
3/ s.
As the further scheme of the present invention: a kind of long distance Large Diameter Pipeline High aititude water delivery in pipeline system, described low level reservoir is provided with two water inlets, and two water inlets is arranged respectively butterfly valve M, butterfly valve N, the needle valve F, the needle valve G, ball valve B and pressure oscillation and put valve B in advance.
As the further scheme of the present invention: a kind of have the pipeline water delivery Gravity flow systems that online high pressure switches diverter function, and water arm connects millpond A and millpond B and respectively needs water spot.
As the further scheme of the present invention: a kind of long distance Large Diameter Pipeline High aititude water delivery in pipeline system, concrete operation method is as follows:
(1) preparation before running:
A. be open mode by the electric gate valve A on aqueduct, butterfly valve C, butterfly valve E, butterfly valve M, butterfly valve N, butterfly valve O, ball valve B, the needle valve F, the needle valve G, ensure that aqueduct is unobstructed;
B. valve B and electric gate valve B being put in butterfly valve A, butterfly valve B, butterfly valve D, butterfly valve P, pressure oscillation is in advance closed condition;
C. be closed condition by the butterfly valve L on each arm, butterfly valve Q, butterfly valve F;
D. confirm butterfly valve R, valve A, butterfly valve G are put in butterfly valve H, the needle valve D, ball valve A, pressure oscillation in advance, the needle valve C is open mode, guarantee that pipeline is unobstructed;
E. high-level reservoir 1 water inlet end connects three times' lifting station water pumping system, provides water source to aqueduct, adopts as far as possible little flow to aqueduct water-filling;
Water lift pipeline between No. three pumping plants to high-level reservoir of f. three times' lifting station water pumping system is full packages water state;
G. confirm that the row's aeration valve front end ball valve on aqueduct is open mode.
(2) operating procedure:
A. start three times' lifting station water pumping system, water is delivered to high-level reservoir 1 after the pressurization of the flow of 0.625 cube of meter per second, the water in high-level reservoir 1 flow in aqueduct 3 by gravity flow, finally flows into low level reservoir;
B. after water arrives low level reservoir 27, by turning closedown two the needle valve F29 in parallel, the needle valve G30 gradually down, for guaranteeing that the air in aqueduct is all discharged, and be full of water and prepare;
C. check that whether row's aeration valve instrument whether working properly, each of each point on aqueduct is normal, pipeline has No leakage, observe the pressure of aqueduct minimum point and peak, and record is carried out to each numerical value;
D. when aqueduct height point pressure is stablized, the air that high-level reservoir 1 water level starts in ascension theory open conduit is drained, is full of water in pipeline;
E. two, low level reservoir 27 water inlet the needle valve F in parallel, the needle valve G is now slowly opened, upstream pressure 114.4m, when aperture is adjusted to 32%, high-level reservoir level stability, high-level reservoir outlet pipe flow and water inlet pipe flow equilibrium, now high-level reservoir 1 to low level reservoir 27 completes water-filling task;
F. electric gate valve B28 is exported slowly opening low level reservoir 27, water-filling in the pipeline of each arm, millpond A15 and millpond B20, after water arrives millpond A15 and millpond B20, valve A16 is put in first closing presure fluctuation in advance, the needle valve D19, the needle valve L14 is closed again by turning down gradually, for guaranteeing that the air in aqueduct is all discharged, and be full of water and prepare;
G. check that whether row's aeration valve instrument whether working properly, each of each point on low level reservoir 27 to millpond A15 and millpond B20 pipeline is normal, pipeline has No leakage, observe the pressure of aqueduct minimum point and peak, and record is carried out to each numerical value;
H. when aqueduct height point pressure is stablized, the air that low level reservoir 27 water level starts in ascension theory open conduit is drained, is now full of water in low level reservoir 27 to millpond A15 and millpond B20 pipeline, completes water-filling task.
(3) step is stopped:
A. running main pump in the water pumping system of three times' lifting station is stopped successively;
B. when high-level reservoir 1 is low fluid level condition, first close two, low level reservoir 27 water inlet the needle valve F, the needle valve G in parallel simultaneously, finally close high-level reservoir 1 delivery port electric gate valve A;
C. when low level reservoir 27 is low fluid level condition, first close the needle valve D19, the needle valve L14 of millpond A15 and millpond B20 water inlet simultaneously, finally close low level reservoir 27 delivery port electric gate valve B.
As the further scheme of the present invention: a kind of long distance Large Diameter Pipeline High aititude water delivery in pipeline system, for preventing water hammer in the needle valve D19, the needle valve L14, the needle valve F, the needle valve G closing process, mode first quick and back slow can be adopted, valve closing time >=65 seconds.In addition in order to prevent the generation of water hammer, when pressure oscillation is large, pressure oscillation put in advance valve A and pressure oscillation put in advance valve B can automatically open discharge water after automatically close, guarantee available protecting pipeline, safe and stable operation.
Compared with prior art, the invention has the beneficial effects as follows: the present invention is by rational structure, the high-quality spring of low altitude area is risen to High aititude, then water resources rational distribution is carried out, thus regional water supply demand can be met, accelerate social economic development of region, and optimize Water Resources Allocation, scientific and reasonable water, promotes water-saving society establishment.
Accompanying drawing explanation
Fig. 1 is three times' lifting water lift structural representation.
Fig. 2 is the structural representation of one-level pumping plant.
Fig. 3 is pipeline water delivery gravity flow structural representation.
In Fig. 1 and Fig. 2: water source point 1, electric gate valve A2, aqueduct 3, automatic makeup outlet valve A4, electric gate valve B5, one-level pumping plant intake pool 6, electric butterfly valve A7, water hammer discharge valve A8, centrifugal pump of horizontal axis A9, electronic pump-controlling valve A10, hydraulic control maintenance ball valve A11, automatic makeup outlet valve B12, flow control valve A13, secondary pumping station intake pool 14, electric butterfly valve B15, water hammer discharge valve B16, centrifugal pump of horizontal axis B17, electronic pump-controlling valve B18, hydraulic control maintenance ball valve B19, automatic makeup outlet valve C20, flow control valve B21, three stage pump station intake pool 22, electric butterfly valve C23, centrifugal pump of horizontal axis C24, water hammer discharge valve C25, electronic pump-controlling valve C26, hydraulic control maintenance ball valve C27, automatic makeup outlet valve D28, flow control valve C29, three stage pump station discharge bay 30, one-level pumping plant 31, secondary pumping station 32, three stage pump station 33, Lubricating-oil Station 34, manual ball valve 35.
In Fig. 3: high-level reservoir 1, electric gate valve A2, aqueduct 3, the needle valve A4, butterfly valve A5, absorption basin 6, the needle valve B7, butterfly valve B8, butterfly valve C9, butterfly valve D10, butterfly valve E11, butterfly valve F12, butterfly valve G13, the needle valve C14, millpond A15, valve A16 is put in pressure oscillation in advance, ball valve A17, butterfly valve H18, the needle valve D19, millpond B20, butterfly valve I21, butterfly valve J22, butterfly valve K23, regulating reservoir 24, the needle valve E25, butterfly valve L26, low level reservoir 27, electric gate valve B28, the needle valve F29, the needle valve G30, valve B31 is put in pressure oscillation in advance, ball valve B32, butterfly valve M33, butterfly valve N34, butterfly valve O35, butterfly valve P36, butterfly valve Q37, butterfly valve R38.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1 ~ 3, in the embodiment of the present invention, a kind of long distance Large Diameter Pipeline High aititude water delivery in pipeline system, comprises water source point, one-level pumping plant, secondary pumping station, three stage pump station, three stage pump station discharge bay, water-conveyance tunnel, high-level reservoir, pipeline and valve, regulating reservoir and low level reservoir composition.Described inverted-siphon section by water source point 1, electric gate valve A2, aqueduct 3, automatic makeup outlet valve A4 and electric gate valve B5, wherein the height above sea level of one-level pumping plant intake pool lower than the height above sea level of water source point to form inverted siphon structure; One-level pumping plant is overhauled ball valve A formed by one-level pumping plant intake pool, electric butterfly valve A, water hammer discharge valve A, centrifugal pump of horizontal axis A, electronic pump-controlling valve A, hydraulic control, the delivery port of one-level pumping plant intake pool connects the end that draws water of centrifugal pump of horizontal axis A, the discharge ends of centrifugal pump of horizontal axis A connects electronic pump-controlling valve A, hydraulic control maintenance ball valve A and output pipe successively, the output pipe of described hydraulic control maintenance ball valve A output is arranged the arm of band water hammer discharge valve A, the arm of band water hammer discharge valve A connects one-level pumping plant intake pool.
Described one-level pumping station layout 6 centrifugal pump of horizontal axis A, in 6 centrifugal pump of horizontal axis A, 4 is working barrel, and 2 is stand by pump, and the unit design discharge of centrifugal pump of horizontal axis A is 0.625m3/s, centrifugal pump of horizontal axis A opens horizontal multi-stage centrifugal pump in adopting, and 6 centrifugal pump of horizontal axis A connect with corresponding Lubricating-oil Station; 3 groups of water hammer discharge valve A are set in described one-level pumping plant, and the input often organizing water hammer discharge valve A all connects a manual ball valve 35; The entrance of described secondary pumping station arranges automatic makeup outlet valve B12 and flow control valve A13, and other structure is identical with one-level pumping plant; The entrance of described three stage pump station arranges automatic makeup outlet valve C20 and flow control valve B21, and other structure is identical with one-level pumping plant; Described one-level pumping plant discharge bay is connected by aqueduct, arranges automatic makeup outlet valve D28 and flow control valve C29; Described water-conveyance tunnel is by gravity flow mode, and tunnel entrance connects triplex outlet pond, and tunnel outlet connects high-level reservoir; The delivery port of described high-level reservoir connects low level reservoir by aqueduct and needs water spot; The delivery port of described high-level reservoir is arranged electric gate valve A, the design that the middle part of aqueduct is remerged by first bifurcated, effectively play the power effect that disappears, to pipe protection.Pipeline big rise and fall along the line, therefore Gao Dian position, many places is provided with automatic makeup outlet valve, many places low dot location is provided with absorption basin, and the front end of absorption basin connects the needle valve and butterfly valve successively; Described regulating reservoir utilizes aqueduct to be connected to form bypass line, is separated by low level reservoir as required and implements; The described water inlet of low level reservoir and the junction of aqueduct are arranged is with pressure oscillation to put the pipeline of valve B and ball valve B in advance to low level reservoir; Described low level reservoir delivery port arranges electric gate valve B, and by aqueduct and low level reservoir, regulating reservoir is connected to needs water spot.
Described one-level pumping plant intake pool 6 and centrifugal pump of horizontal axis A9 form one-level booster station, and secondary pumping station intake pool 14 and centrifugal pump of horizontal axis B17 form two-stage pressurizing pumping plant, and three stage pump station intake pool 22 and centrifugal pump of horizontal axis C24 form three times' lifting pumping plant.Wherein one-level booster station hoisting depth is 223.70m, and the dischargeable capacity of one-level pumping plant intake pool 6 is about 12000m
3, waterline total length 1460m, aqueduct diameter is 1.2m, and the installed power of one-level booster station is 12000Kw; The hoisting depth of two-stage pressurizing pumping plant is 339.80m, and the dischargeable capacity of secondary pumping station intake pool 14 is about 2300m
3, waterline total length 2690m, aqueduct diameter is 1.2m, and the installed power of two-stage pressurizing pumping plant is 18900Kw; Three times' lifting pumping plant promotes 340.5m, and the dischargeable capacity of three stage pump station intake pool 22 is about 2300m3, waterline total length 1980m, the diameter of aqueduct is 1.2m, the installed power of three times' lifting pumping plant is 18900Kw, and the present invention adopts three times' lifting pumping plant water lift, and total lifting lift is 904 meters.
The method of operating of described long distance Large Diameter Pipeline High aititude water delivery in pipeline system is:
(1) one-level pumping plant intake pool water inlet:
The unlatching of a, valve: after being full of water in pipeline, first opens the electric gate valve A of inverted-siphon section entrance, then opens the electric gate valve B of inverted-siphon section outlet, pours water in one-level pumping plant intake pool 6;
The closedown of b, valve: when one-level pumping plant intake pool poured water and work as pumping plant shut down after waste for avoiding the overflow in pond to cause water source, now should close inverted-siphon section outlet electric gate valve B, then close inverted-siphon section entrance electric gate valve A.
(2) pumping plant main pump start-up operation step:
1., check before start:
A. each accessory system of on-the-spot LCU cabinet, main pump is powered normally, and communication is normally also beaten at remote location;
B. the electric butterfly valve A of pumping plant influent side at different levels, electric butterfly valve B, electric butterfly valve C is detected, each pumping plant outlet side electronic pump-controlling valve A, electronic pump-controlling valve B, electronic pump-controlling valve C, and the power supply that ball valve A, hydraulic control maintenance ball valve B are overhauled in hydraulic control, ball valve C is overhauled in hydraulic control is normal, beats and there is no fault-signal at remote location;
C. automated location got to by two hydraulic pumps of hydraulic control maintenance ball valve A, hydraulic control maintenance ball valve B and hydraulic control maintenance ball valve C;
D. soft starting device is powered normally, fault-free signal, and soft start is at remote location;
E. each detecting element alarm free of the pump group of pumping plant at different levels, fault-signal;
F. the manual ball valve 35 that water hammer is released on arm is in open mode, and water hammer discharge valve A is in closed condition.
2., main pump setting up procedure:
A. open electric butterfly valve A, electric butterfly valve B and the electric butterfly valve C of each pumping plant main pump import department, open hydraulic control maintenance ball valve A, hydraulic control maintenance ball valve B and hydraulic control maintenance ball valve C;
B. the outlet valve opened on each pumping plant main pump pump housing is exhausted, until close after having water full packages to flow out;
C. technical water supply valve is opened and flow is normal;
D. start Lubricating-oil Station 34, the flow that Lubricating-oil Station 34 exports and pressure normal and keep 3 minutes;
E. start main pump, main pump rotating speed reaches specified 95%, and pump chamber pressure reaches rated pressure 90%;
F. electronic pump-controlling valve A, electronic pump-controlling valve B and electronic pump-controlling valve C open, if motor reaches rated speed, pump-controlling valve does not have action main pump to shut down in 10 seconds;
3., main pump detects after starting:
A. pump discharge is monitored, with design load comparison;
B. revolution speed is monitored, with design load comparison;
C. pump intake lateral pressure is monitored, for checking NPSH value;
D. each impeller chamber pressure is monitored;
E. monitoring bearing vibration, is no more than 4.5mm/s;
F. the temperature of each bearing is monitored, journal bearing and thrust bearing alarm temperature 100 ° of C, emergency shutdown temperature 150 ° of C;
G. monitor main shaft throw, be no more than 4.5mm/s;
H. current of electric is monitored;
I. monitor motor bearings temperature-100 ° C to report to the police, 150 ° of C tripping operations;
More than detect data normal, complete main pump and start.
(3) main pump shutdown operation step:
A. order is shut down to main pump;
B. electronic pump-controlling valve A, electronic pump-controlling valve B and electronic pump-controlling valve C is closed;
C. in 4 seconds, electronic pump-controlling valve A, electronic pump-controlling valve B and electronic pump-controlling valve C are closed to 90%, remaining 10% closed in 10 seconds, sent and shut down triggering signal to motor;
D., when the positive rotating speed of main pump is less than 5%, electronic pump-controlling valve A, electronic pump-controlling valve B and electronic pump-controlling valve C close completely;
E. main pump shuts down;
F. Lubricating-oil Station works on 3 minutes, abundant cooling bearing;
G. stop Lubricating-oil Station and close mechanical seal rinsing water.
Described one long distance Large Diameter Pipeline High aititude water delivery in pipeline system; in main pump shutdown operation step; lost efficacy or time-out when electronic pump-controlling valve A10, electronic pump-controlling valve B18 and electronic pump-controlling valve C26 close, hydraulic control maintenance ball valve A11, hydraulic control maintenance ball valve B19 and hydraulic control maintenance ball valve C27 get involved and close.In valve closing process, when producing pressure oscillation, and when exceeding the high-low pressure that water hammer releases set by A8, the water hammer A8 that releases can open rear automatic closedown automatically, effectively guarantees protective conduit.
Described one long distance Large Diameter Pipeline High aititude water delivery in pipeline system, balance one-level pumping plant, the pond water yield between secondary pumping station and three stage pump station, formulate the method that centralized control center controls one-level pumping plant, secondary pumping station and three stage pump station chain startup and stop, concrete operation step is as follows:
(1) the normal startup of pumping plant: first must be full of water in pipeline, starts the 1# series from each pumping plant in four main pumps, restarts 2# series, until 4# series startup when 1# series main pump starts successfully.
(2) normal start-up operation step: flow control valve A13, flow control valve B21 that confirmation one-level pumping plant, secondary pumping station and triplex export, flow control valve C29 are open mode;
A, confirm that three manual ball valves in each Water Hammer valve front end 35 are for open mode, three water hammer discharge valve A8, water hammer discharge valve B16, water hammer discharge valve C25 are closed condition;
B. confirm that each pumping plant head-tank water yield is sufficient, two fire pumps are beaten automatically, and ensure that pipeline is unobstructed.
The technical water supply valve of c, the 1# main pump opening one-level pumping plant, the 1# main pump of secondary pumping station, the 1# main pump of three stage pump station, ensures that main pump shaft and oil system have cooling water;
The hydraulic control maintenance ball valve A11 of d, confirmation one-level pumping plant 1# main pump outlet is open mode, confirm that electronic pump-controlling valve A10 is closed condition, open main pump inlet electric butterfly valve A7, main pump A is exhausted, the outlet valve opened on the pump housing is exhausted, until close after having water full packages to flow out;
E, confirmation secondary pumping station 1# main pump outlet hydraulic control maintenance ball valve B19 are open mode, confirm that electronic pump-controlling valve B18 is closed condition, open entrance electric butterfly valve B15, main pump A is exhausted, the outlet valve opened on the pump housing is exhausted, until close after having water full packages to flow out;
F, confirmation three stage pump station 1# main pump outlet hydraulic control maintenance ball valve C27 are open mode, confirm that electronic pump-controlling valve C26 is closed condition, open entrance electric butterfly valve C23, main pump A is exhausted, the outlet valve opened on the pump housing is exhausted, until close after having water full packages to flow out;
G, startup one-level pumping plant 1# main pump;
H, when 14, secondary pumping station intake pool water is to lowest water level 3.3 meters, starts the 1# main pump A of secondary pumping station and send water to three stage pump station;
I, when three stage pump station intake pool water level is to lowest water level 3.3 meters, starts the 1# main pump B of three stage pump station and send water to three stage pump station discharge bay 30;
J, when the 1# series main pump of three times' lifting pumping plant starts successfully also normal operation, starting the main pump of 2# series successively.
K, from prime pumping plant to rear class pumping plant step by step by platform start, until start 4 main pumps, reach metered flow.
Note: can preferentially start if certain grade of pumping plant pond liquid level is high, then according to all the other pumping plant water level in water pool determination boot sequences.
(3) orderly shutdown operating procedure
A. confirm the pond liquid level of pumping plant at different levels before stopping, ensure that pond, each station is low fluid level condition as far as possible, facilitate next pumping plant to start or maintenance.
B. secondary pumping station intake pool 14 or three stage pump station intake pool 22 water level high: stop one-level pumping plant 1# main pump → stop secondary pumping station 1# main pump → stop three stage pump station 1# main pump;
C. press series corresponding to pumping plant successively to shut down, when one-level pumping plant has stopped 4 main pumps, two, three stage pump station can select the shutdown sequence of last main pump according to pond liquid level;
D. after one-level pumping plant has stopped pump, close the electric gate valve B5 of inverted-siphon section outlet, then close the electric brake A2 of inverted-siphon section entrance.
Described one long distance Large Diameter Pipeline High aititude water delivery in pipeline system, inverted-siphon segment pipe is installed automatic makeup outlet valve A4.
Described one long distance Large Diameter Pipeline High aititude water delivery in pipeline system, the caliber of inverted-siphon section is 1.8m, and the caliber of water lift pipeline and aqueduct is 1.2m.
Described one long distance Large Diameter Pipeline High aititude water delivery in pipeline system, the water inlet of described secondary pumping station intake pool sets gradually automatic makeup outlet valve B12 and flow control valve A13, the water inlet of three stage pump station intake pool sets gradually automatic makeup outlet valve C20 and flow control valve B21, the water inlet of three stage pump station discharge bay sets gradually automatic makeup outlet valve D28 and flow control valve C29.
Described one long distance Large Diameter Pipeline High aititude water delivery in pipeline system, one-level booster station hoisting depth is 223.70m, and the dischargeable capacity of one-level pumping plant intake pool is 12000m
3, waterline total length 1460m, aqueduct diameter is 1.2m, and the installed power of one-level booster station is 12000Kw; The hoisting depth of two-stage pressurizing pumping plant is 339.80m, and the dischargeable capacity of secondary pumping station intake pool is 2300m
3, waterline total length 2690m, aqueduct diameter is 1.2m, and the installed power of two-stage pressurizing pumping plant is 18900Kw; Three times' lifting pumping plant promotes 340.5m, and the dischargeable capacity of three stage pump station intake pool is 2300m
3, waterline total length 1980m, the diameter of aqueduct is 1.2m, and the installed power of three times' lifting pumping plant is 18900Kw.
Described one long distance Large Diameter Pipeline High aititude water delivery in pipeline system, opens horizontal multi-stage centrifugal pump during centrifugal pump of horizontal axis A9, centrifugal pump of horizontal axis B17 and centrifugal pump of horizontal axis C24 all adopt, in open horizontal multi-stage centrifugal pump unit design discharge be 0.625m
3/ s.
Described one long distance Large Diameter Pipeline High aititude water delivery in pipeline system, described low level reservoir is provided with two water inlets, and two water inlets is arranged respectively butterfly valve M, butterfly valve N, the needle valve F, the needle valve G, ball valve B and pressure oscillation and put valve B in advance.
Described a kind of pipeline water delivery Gravity flow systems with online high pressure switching diverter function, water arm connects millpond A and millpond B and respectively needs water spot.
Described one long distance Large Diameter Pipeline High aititude water delivery in pipeline system, concrete operation method is as follows:
(1) preparation before running:
A. be open mode by the electric gate valve A on aqueduct, butterfly valve C, butterfly valve E, butterfly valve M, butterfly valve N, butterfly valve O, ball valve B, the needle valve F, the needle valve G, ensure that aqueduct is unobstructed;
B. valve B and electric gate valve B being put in butterfly valve A, butterfly valve B, butterfly valve D, butterfly valve P, pressure oscillation is in advance closed condition;
C. be closed condition by the butterfly valve L on each arm, butterfly valve Q, butterfly valve F;
D. confirm butterfly valve R, valve A, butterfly valve G are put in butterfly valve H, the needle valve D, ball valve A, pressure oscillation in advance, the needle valve C is open mode, guarantee that pipeline is unobstructed;
E. high-level reservoir 1 water inlet end connects three times' lifting station water pumping system, provides water source to aqueduct, adopts as far as possible little flow to aqueduct water-filling;
Water lift pipeline between No. three pumping plants to high-level reservoir of f. three times' lifting station water pumping system is full packages water state;
G. confirm that the row's aeration valve front end ball valve on aqueduct is open mode.
(2) operating procedure:
A. start three times' lifting station water pumping system, water is delivered to high-level reservoir 1 after the pressurization of the flow of 0.625 cube of meter per second, the water in high-level reservoir 1 flow in aqueduct 3 by gravity flow, finally flows into low level reservoir;
B. after water arrives low level reservoir 27, by turning closedown two the needle valve F29 in parallel, the needle valve G30 gradually down, for guaranteeing that the air in aqueduct is all discharged, and be full of water and prepare;
C. check that whether row's aeration valve instrument whether working properly, each of each point on aqueduct is normal, pipeline has No leakage, observe the pressure of aqueduct minimum point and peak, and record is carried out to each numerical value;
D. when aqueduct height point pressure is stablized, the air that high-level reservoir 1 water level starts in ascension theory open conduit is drained, is full of water in pipeline;
E. two, low level reservoir 27 water inlet the needle valve F in parallel, the needle valve G is now slowly opened, upstream pressure 114.4m, when aperture is adjusted to 32%, high-level reservoir level stability, high-level reservoir outlet pipe flow and water inlet pipe flow equilibrium, now high-level reservoir 1 to low level reservoir 27 completes water-filling task;
F. electric gate valve B28 is exported slowly opening low level reservoir 27, water-filling in the pipeline of each arm, millpond A15 and millpond B20, after water arrives millpond A15 and millpond B20, valve A16 is put in first closing presure fluctuation in advance, the needle valve D19, the needle valve L14 is closed again by turning down gradually, for guaranteeing that the air in aqueduct is all discharged, and be full of water and prepare;
G. check that whether row's aeration valve instrument whether working properly, each of each point on low level reservoir 27 to millpond A15 and millpond B20 pipeline is normal, pipeline has No leakage, observe the pressure of aqueduct minimum point and peak, and record is carried out to each numerical value;
H. when aqueduct height point pressure is stablized, the air that low level reservoir 27 water level starts in ascension theory open conduit is drained, is now full of water in low level reservoir 27 to millpond A15 and millpond B20 pipeline, completes water-filling task.
(3) step is stopped:
A. running main pump in the water pumping system of three times' lifting station is stopped successively;
B. when high-level reservoir 1 is low fluid level condition, first close two, low level reservoir 27 water inlet the needle valve F, the needle valve G in parallel simultaneously, finally close high-level reservoir 1 delivery port electric gate valve A;
C. when low level reservoir 27 is low fluid level condition, first close the needle valve D19, the needle valve L14 of millpond A15 and millpond B20 water inlet simultaneously, finally close low level reservoir 27 delivery port electric gate valve B.
Described one long distance Large Diameter Pipeline High aititude water delivery in pipeline system, for preventing water hammer in the needle valve D19, the needle valve L14, the needle valve F, the needle valve G closing process, can adopt mode first quick and back slow, valve closing time >=65 seconds.In addition in order to prevent the generation of water hammer, when pressure oscillation is large, pressure oscillation put in advance valve A and pressure oscillation put in advance valve B can automatically open discharge water after automatically close, guarantee available protecting pipeline, safe and stable operation.
After the invention process, will indirectly give three lakes of Yuxi moisturizing more than 2000 incomparably every year, and wherein give Fuxian Lake moisturizing more than 1700 incomparably, Fuxian Lake annual productive life water withdrawal about 1,800 ten thousand side." three lakes " peripheral region productive life water is ensured by the enforcement of engineering; ban the various unreasonable use of water to lake and the excessive exploitation to groundwater resources; make-up water source, dilution and displacement polluted-water; the possibility that effective alleviation " three lakes " water level decreasing brings Ecology risk to occur; be conducive to the increase of water level promoting and water body self-purification ability, reach the improvement to " three lakes " and protection.
Regional water supply demand can be met, accelerate social economic development of region: by enforcement of the present invention, center of Yuxi city, maritime county town, river and mountain county town, Huaning county town, Fuxian Lake periphery water shortage problem are resolved, white imperial River Reservoir, Dongfeng Reservoir, the function flying the hydraulic engineerings such as Jing Haishuiku are recovered, the Agricultural Irrigation Water task of recovered part hydraulic engineering, plays positive facilitation to social economic development of region simultaneously.
Optimize Water Resources Allocation, scientific and reasonable water, promotion water-saving society establishment: by enforcement of the present invention, the The Big Dragon Pool high-quality spring underused obtains scientific and reasonable exploitation, and water resource is saved; By to enforcement of the present invention, accelerate the adjustment of center of Yuxi city, maritime county town, river and mountain county town, Huaning county town, Fuxian Lake periphery water-using structure and mode, improve water utilization rate, positive facilitation is played to Yuxi water-saving society establishment.
In sum, the present invention is by rational structure, the high-quality spring of low altitude area is risen to High aititude, then water resources rational distribution is carried out, thus regional water supply demand can be met, accelerate social economic development of region, and optimize Water Resources Allocation, scientific and reasonable water, promotes water-saving society establishment.
To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present invention or essential characteristic, the present invention can be realized in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present invention is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the present invention.Any Reference numeral in claim should be considered as the claim involved by limiting.
In addition, be to be understood that, although this manual is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of manual is only for clarity sake, those skilled in the art should by manual integrally, and the technical scheme in each embodiment also through appropriately combined, can form other embodiments that it will be appreciated by those skilled in the art that.
Claims (9)
1. one kind long distance Large Diameter Pipeline High aititude water delivery in pipeline system, comprise water source point, one-level pumping plant, secondary pumping station, three stage pump station, three stage pump station discharge bay, water-conveyance tunnel, high-level reservoir, pipeline and valve, regulating reservoir and low level reservoir, described inverted-siphon section is by water source point, electric gate valve A, aqueduct, automatic makeup outlet valve A and electric gate valve B, it is characterized in that, wherein the height above sea level of one-level pumping plant intake pool lower than the height above sea level of water source point to form inverted siphon structure; One-level pumping plant is overhauled ball valve A formed by one-level pumping plant intake pool, electric butterfly valve A, water hammer discharge valve A, centrifugal pump of horizontal axis A, electronic pump-controlling valve A, hydraulic control, the delivery port of one-level pumping plant intake pool connects the end that draws water of centrifugal pump of horizontal axis A, the discharge ends of centrifugal pump of horizontal axis A connects electronic pump-controlling valve A, hydraulic control maintenance ball valve A and output pipe successively, the output pipe of described hydraulic control maintenance ball valve A output is arranged the arm of band water hammer discharge valve A, the arm of band water hammer discharge valve A connects one-level pumping plant intake pool; Described one-level pumping station layout 6 centrifugal pump of horizontal axis A, in 6 centrifugal pump of horizontal axis A, 4 is working barrel, and 2 is stand by pump, and 6 centrifugal pump of horizontal axis A connect with corresponding Lubricating-oil Station; 3 groups of water hammer discharge valve A are set in described one-level pumping plant, and the input often organizing water hammer discharge valve A all connects a manual ball valve; The entrance of described secondary pumping station arranges automatic makeup outlet valve B and flow control valve A, and other structure is identical with one-level pumping plant; The entrance of described three stage pump station arranges automatic makeup outlet valve C and flow control valve B, and other structure is identical with one-level pumping plant; Described one-level pumping plant discharge bay is connected by aqueduct, arranges automatic makeup outlet valve D and flow control valve C; Described water-conveyance tunnel is by gravity flow mode, and tunnel entrance connects triplex outlet pond, and tunnel outlet connects high-level reservoir; The delivery port of described high-level reservoir connects low level reservoir by aqueduct and needs water spot; The delivery port of described high-level reservoir is arranged electric gate valve A, the design that the middle part of aqueduct is remerged by first bifurcated, effectively play the power effect that disappears, to pipe protection; Pipeline big rise and fall along the line, therefore Gao Dian position, many places is provided with automatic makeup outlet valve, many places low dot location is provided with absorption basin, and the front end of absorption basin connects the needle valve and butterfly valve successively; Described regulating reservoir utilizes aqueduct to be connected to form bypass line, is separated by low level reservoir as required and implements; The described water inlet of low level reservoir and the junction of aqueduct are arranged is with pressure oscillation to put the pipeline of valve B and ball valve B in advance to low level reservoir; Described low level reservoir delivery port arranges electric gate valve B, and by aqueduct and low level reservoir, regulating reservoir is connected to needs water spot.
2. one according to claim 1 long distance Large Diameter Pipeline High aititude water delivery in pipeline system, it is characterized in that, its method of operating is:
(1) one-level pumping plant intake pool water inlet:
The unlatching of a, valve: after being full of water in pipeline, first opens the electric gate valve A of inverted-siphon section entrance, then opens the electric gate valve B of inverted-siphon section outlet, pours water in one-level pumping plant intake pool;
The closedown of b, valve: when one-level pumping plant intake pool poured water and work as pumping plant shut down after waste for avoiding the overflow in pond to cause water source, now should close inverted-siphon section outlet electric gate valve B, then close inverted-siphon section entrance electric gate valve A;
(2) pumping plant main pump start-up operation step:
1., check before start:
Each accessory system of a, on-the-spot LCU cabinet, main pump is powered normally, and communication is normally also beaten at remote location;
B, the electric butterfly valve A detecting pumping plant influent side at different levels, electric butterfly valve B, electric butterfly valve C, each pumping plant outlet side electronic pump-controlling valve A, electronic pump-controlling valve B, electronic pump-controlling valve C, and the power supply that ball valve A, hydraulic control maintenance ball valve B are overhauled in hydraulic control, ball valve C is overhauled in hydraulic control is normal, beats and there is no fault-signal at remote location;
Automated location got to by two hydraulic pumps that ball valve C is overhauled in c, hydraulic control maintenance ball valve A, hydraulic control maintenance ball valve B and hydraulic control;
D, soft starting device are powered normally, fault-free signal, and soft start is at remote location;
The each detecting element alarm free of pump group of e, pumping plant at different levels, fault-signal;
The manual ball valve that f, water hammer are released on arm is in open mode, and water hammer discharge valve A is in closed condition;
2., main pump setting up procedure:
A, the electric butterfly valve A, the electric butterfly valve B that open each pumping plant main pump import department and electric butterfly valve C, open hydraulic control maintenance ball valve A, hydraulic control maintenance ball valve B and hydraulic control maintenance ball valve C;
B, the outlet valve opened on each pumping plant main pump pump housing are exhausted, until close after having water full packages to flow out;
C, open technical water supply valve and flow is normal;
D, start Lubricating-oil Station, the flow that Lubricating-oil Station exports and pressure normal and keep 3 minutes;
E, startup main pump, main pump rotating speed reaches specified 95%, and pump chamber pressure reaches rated pressure 90%;
F, electronic pump-controlling valve A, electronic pump-controlling valve B and electronic pump-controlling valve C open, if motor reaches rated speed, pump-controlling valve does not have action main pump to shut down in 10 seconds;
3., main pump detects after starting:
A, monitoring pump discharge, with design load comparison;
B, monitoring revolution speed, with design load comparison;
C, monitoring pump intake lateral pressure, for checking NPSH value;
D, monitor each impeller chamber pressure;
E, monitoring bearing vibrate, and are no more than 4.5mm/s;
F, monitor the temperature of each bearing, journal bearing and thrust bearing alarm temperature 100 ° of C, emergency shutdown temperature 150 ° of C;
G, monitoring main shaft throw, be no more than 4.5mm/s;
H, monitoring current of electric;
I, monitoring motor bearings temperature-100 ° C report to the police, 150 ° of C tripping operations;
More than detect data normal, complete main pump and start;
(3) main pump shutdown operation step:
A, to main pump shut down order;
B, close electronic pump-controlling valve A, electronic pump-controlling valve B and electronic pump-controlling valve C;
C, in 4 seconds, electronic pump-controlling valve A, electronic pump-controlling valve B and electronic pump-controlling valve C are closed to 90%, remaining 10% closed in 10 seconds, sent and shut down triggering signal to motor;
D, when the positive rotating speed of main pump is less than 5%, electronic pump-controlling valve A, electronic pump-controlling valve B and electronic pump-controlling valve C close completely;
E, main pump shut down;
F, Lubricating-oil Station work on 3 minutes, abundant cooling bearing;
G, stop Lubricating-oil Station and close mechanical seal rinsing water.
3. one according to claim 1 long distance Large Diameter Pipeline High aititude water delivery in pipeline system, it is characterized in that, balance one-level pumping plant, the pond water yield between secondary pumping station and three stage pump station, formulate the method that centralized control center controls one-level pumping plant, secondary pumping station and three stage pump station chain startup and stop, concrete operation step is as follows:
(1) the normal startup of pumping plant: first must be full of water in pipeline, starts the 1# series from each pumping plant in four main pumps, restarts 2# series, until 4# series startup when 1# series main pump starts successfully;
(2) normal start-up operation step: flow control valve A, flow control valve B that confirmation one-level pumping plant, secondary pumping station and triplex export, flow control valve C are open mode;
A, confirm that three manual ball valves in each Water Hammer valve front end 35 are for open mode, three water hammer discharge valve A8, water hammer discharge valve B, water hammer discharge valve C are closed condition;
B, confirm that each pumping plant head-tank water yield is sufficient, two fire pumps are beaten automatically, and ensure that pipeline is unobstructed;
The technical water supply valve of c, the 1# main pump opening one-level pumping plant, the 1# main pump of secondary pumping station, the 1# main pump of three stage pump station, ensures that main pump shaft and oil system have cooling water;
The hydraulic control maintenance ball valve A of d, confirmation one-level pumping plant 1# main pump outlet is open mode, confirm that electronic pump-controlling valve A is closed condition, open main pump inlet electric butterfly valve A, main pump A is exhausted, the outlet valve opened on the pump housing is exhausted, until close after having water full packages to flow out;
E, confirmation secondary pumping station 1# main pump outlet hydraulic control maintenance ball valve B are open mode, confirm that electronic pump-controlling valve B18 is closed condition, open entrance electric butterfly valve B, main pump A is exhausted, the outlet valve opened on the pump housing is exhausted, until close after having water full packages to flow out;
F, confirmation three stage pump station 1# main pump outlet hydraulic control maintenance ball valve C are open mode, confirm that electronic pump-controlling valve C26 is closed condition, open entrance electric butterfly valve C, main pump A is exhausted, the outlet valve opened on the pump housing is exhausted, until close after having water full packages to flow out;
G, startup one-level pumping plant 1# main pump;
H, when secondary pumping station intake pool water level is to lowest water level 3.3 meters, starts the 1# main pump A of secondary pumping station and send water to three stage pump station;
I, when three stage pump station intake pool water level is to lowest water level 3.3 meters, starts the 1# main pump B of three stage pump station and send water to three stage pump station discharge bay 30;
J, when the 1# series main pump of three times' lifting pumping plant starts successfully also normal operation, starting the main pump of 2# series successively;
K, from prime pumping plant to rear class pumping plant step by step by platform start, until start 4 main pumps, reach metered flow;
Note: can preferentially start if certain grade of pumping plant pond liquid level is high, then according to all the other pumping plant water level in water pool determination boot sequences;
(3) orderly shutdown operating procedure
The pond liquid level of a, the front confirmation pumping plant at different levels that stops, ensures that pond, each station is low fluid level condition as far as possible, facilitates next pumping plant to start or maintenance;
B, secondary pumping station intake pool or three stage pump station intake pool water level are high: stop one-level pumping plant 1# main pump → stop secondary pumping station 1# main pump → stop three stage pump station 1# main pump;
C, press series corresponding to pumping plant successively and shut down, when one-level pumping plant has stopped 4 main pumps, two, three stage pump station can select the shutdown sequence of last main pump according to pond liquid level;
D, after one-level pumping plant has stopped pump, close the electric gate valve B of inverted-siphon section outlet, then close the electric brake A of inverted-siphon section entrance.
4. one according to claim 1 long distance Large Diameter Pipeline High aititude water delivery in pipeline system, it is characterized in that, inverted-siphon segment pipe is installed automatic makeup outlet valve A, the caliber of inverted-siphon section is 1.8m, and the caliber of water lift pipeline and aqueduct is 1.2m.
5. according to one according to claim 2 long distance Large Diameter Pipeline High aititude water delivery in pipeline system; it is characterized in that; in main pump shutdown operation step; lost efficacy or time-out when electronic pump-controlling valve A, electronic pump-controlling valve B and electronic pump-controlling valve C close; hydraulic control maintenance ball valve A, hydraulic control maintenance ball valve B and hydraulic control maintenance ball valve C get involved and close; in valve closing process; when producing pressure oscillation; and when exceeding the high-low pressure that water hammer releases set by A; the water hammer A that releases can open rear automatic closedown automatically, effectively guarantees protective conduit.
6. one according to claim 1 long distance Large Diameter Pipeline High aititude water delivery in pipeline system, it is characterized in that, described one-level pumping plant intake pool and centrifugal pump of horizontal axis A form one-level booster station, in open horizontal multi-stage centrifugal pump unit design discharge be 0.625m
3/ s; Secondary pumping station intake pool and centrifugal pump of horizontal axis B form two-stage pressurizing pumping plant, in open horizontal multi-stage centrifugal pump unit design discharge be 0.625m
3/ s; Three stage pump station intake pool and centrifugal pump of horizontal axis C form three times' lifting pumping plant, in open horizontal multi-stage centrifugal pump unit design discharge be 0.625m
3/ s; Wherein one-level booster station hoisting depth is 223.70m, and the dischargeable capacity of one-level pumping plant intake pool is about 12000m3, waterline total length 1460m, and aqueduct diameter is 1.2m, and the installed power of one-level booster station is 12000Kw; The hoisting depth of two-stage pressurizing pumping plant is 339.80m, the dischargeable capacity of secondary pumping station intake pool is about 2300m3, waterline total length 2690m, aqueduct diameter is 1.2m, the installed power of two-stage pressurizing pumping plant is 18900Kw, the water inlet of secondary pumping station intake pool sets gradually automatic makeup outlet valve B and flow control valve A; Three times' lifting pumping plant promotes 340.5m, the dischargeable capacity of three stage pump station intake pool is about 2300m3, waterline total length 1980m, the diameter of aqueduct is 1.2m, the installed power of three times' lifting pumping plant is 18900Kw, the water inlet of three stage pump station intake pool sets gradually automatic makeup outlet valve C and flow control valve B, the water inlet of three stage pump station discharge bay sets gradually automatic makeup outlet valve D and flow control valve C, the present invention adopts three times' lifting pumping plant water lift, and total lifting lift is 904 meters.
7. one according to claim 1 long distance Large Diameter Pipeline High aititude water delivery in pipeline system, it is characterized in that, described low level reservoir is provided with two water inlets, and two water inlets is arranged respectively butterfly valve M, butterfly valve N, the needle valve F, the needle valve G, ball valve B and pressure oscillation and put valve B in advance; Connect millpond A and millpond B with water arm and respectively need water spot.
8. one according to claim 1 long distance Large Diameter Pipeline High aititude water delivery in pipeline system, it is characterized in that, concrete operation method is as follows:
(1) preparation before running:
A, the electric gate valve A by aqueduct, butterfly valve C, butterfly valve E, butterfly valve M, butterfly valve N, butterfly valve O, ball valve B, the needle valve F, the needle valve G are open mode, ensure that aqueduct is unobstructed;
B, valve B and electric gate valve B is put in butterfly valve A, butterfly valve B, butterfly valve D, butterfly valve P, pressure oscillation is in advance closed condition;
C, the butterfly valve L by each arm, butterfly valve Q, butterfly valve F are closed condition;
D, confirm butterfly valve R, valve A, butterfly valve G are put in butterfly valve H, the needle valve D, ball valve A, pressure oscillation in advance, the needle valve C is open mode, guarantee that pipeline is unobstructed;
E, high-level reservoir 1 water inlet end connect three times' lifting station water pumping system, provide water source to aqueduct, adopt as far as possible little flow to aqueduct water-filling;
Water lift pipeline between No. three pumping plants to high-level reservoir of f, three times' lifting station water pumping system is full packages water state;
Row's aeration valve front end ball valve on g, confirmation aqueduct is open mode;
(2) operating procedure:
A, startup three times' lifting station water pumping system, water is delivered to high-level reservoir after the pressurization of the flow of 0.625 cube of meter per second, the water in high-level reservoir flow in aqueduct 3 by gravity flow, finally flows into low level reservoir;
B, after water arrives low level reservoir 27, by turning closedown two the needle valve F29 in parallel, the needle valve G30 gradually down, for guaranteeing that the air in aqueduct is all discharged, and be full of water and prepare;
C, check that whether row's aeration valve instrument whether working properly, each of each point on aqueduct is normal, pipeline has No leakage, observe the pressure of aqueduct minimum point and peak, and record is carried out to each numerical value;
D, stablize when aqueduct height point pressure, the air that elevated storage pool water level starts in ascension theory open conduit is drained, is full of water in pipeline;
E, now slowly open two, low level reservoir water inlet the needle valve F in parallel, the needle valve G, upstream pressure 114.4m, when aperture is adjusted to 32%, high-level reservoir level stability, high-level reservoir outlet pipe flow and water inlet pipe flow equilibrium, now high-level reservoir 1 to low level reservoir 27 completes water-filling task;
F, slowly opening low level reservoir outlet electric gate valve B, water-filling in the pipeline of each arm, millpond A and millpond B, after water arrives millpond A and millpond B, valve A is put in first closing presure fluctuation in advance, the needle valve D, the needle valve L is closed again by turning down gradually, for guaranteeing that the air in aqueduct is all discharged, and be full of water and prepare;
G, check that whether row's aeration valve instrument whether working properly, each of each point on low level reservoir to millpond A and millpond B pipeline is normal, pipeline has No leakage, observe the pressure of aqueduct minimum point and peak, and record is carried out to each numerical value;
H, stablize when aqueduct height point pressure, the air that low level reservoir water level starts in ascension theory open conduit is drained, and now low level reservoir is full of water to millpond A and millpond B pipeline, completes water-filling task;
(3) step is stopped:
Running main pump in a, successively stopping three times' lifting station water pumping system;
B, when high-level reservoir is low fluid level condition, simultaneously first close two, low level reservoir water inlet the needle valve F, the needle valve G in parallel, finally close high-level reservoir 1 delivery port electric gate valve A;
C, when low level reservoir is low fluid level condition, first close the needle valve D, the needle valve L of millpond A and millpond B water inlet simultaneously, finally close low level reservoir delivery port electric gate valve B.
9. one according to claim 8 long distance Large Diameter Pipeline High aititude water delivery in pipeline system; it is characterized in that; in step (3); for preventing water hammer in the needle valve D, the needle valve L, the needle valve F, the needle valve G closing process; mode first quick and back slow can be adopted; valve closing time >=65 seconds; in addition in order to prevent the generation of water hammer; when pressure oscillation is large; pressure oscillation put in advance valve A and pressure oscillation put in advance valve B can automatically open discharge water after automatically close; guarantee available protecting pipeline, safe and stable operation.
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Application publication date: 20151202 |