CN206591566U - The technical water supply system that power station open and close type is combined - Google Patents
The technical water supply system that power station open and close type is combined Download PDFInfo
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- CN206591566U CN206591566U CN201720170099.9U CN201720170099U CN206591566U CN 206591566 U CN206591566 U CN 206591566U CN 201720170099 U CN201720170099 U CN 201720170099U CN 206591566 U CN206591566 U CN 206591566U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
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Abstract
The utility model discloses the technical water supply system that a kind of power station open and close type is combined, belong to power station technical water supply system field.The utility model includes open type water supply installation, enclosed water supply installation, the first operation valve group, the second operation valve group；Open type water supply installation one end connects with water source, the other end wherein connects with the first operation valve group, cooling object, the second operation valve group and hydropower station tail water or power station downstream successively all the way, and another road connects with enclosed water supply installation and hydropower station tail water or power station downstream tandem successively；Enclosed water supply installation and cooling object connect and constitute circulation loop.The utility model is applied to water supply source quality with the obvious power station of seasonal variations, and is remarkably improved the reliability of power station technical water supply and reduces its operating cost.And the utility model be provided with two can mutually switch operating branch road and emergency bypass, the convenient maintenance to whole system further increases reliability of the present utility model.
Description
Technical field
The utility model is related to power station technical water supply system field, and in particular to be that a kind of power station open and close type is combined
Technical water supply system.
Background technology
The technical water supply of hydropower mechanical and electrical equipment is also known as industrial water, and main object is various electromechanical equipment coolers, such as
Air cooler of generator, generator thrust bearing and guide bearing, turbine guide bearing, water cooled transformer cooler etc., it is main
It is that the said equipment is cooled down to act on, to ensure its safe and stable operation.
Technical water supply system is also not quite similar according to the difference of power station working head scope, way of supplying water, works as working water
When head is 15m~80m, gravity flow way of supplying water is preferably used；When working head is in 70m~140m, gravity flow decompression is preferably used to supply water；
When working head is in 140m~160m, it can be supplied water using gravity flow decompression；When working head is less than 15m or more than 140m, preferably adopt
Use water pump way of supplying water.
In addition, according to the difference of power station condition of water quality, the system mode of use can be divided into open-stored water system and enclosed is supplied
Water system.One of which typically is used in current power station, it is general to be supplied water using open type when condition of water quality is relatively good, i.e.,
Directly equipment is cooled down by unit cooler after purified treatment from the water after water source water intaking；And when condition of water quality ratio
(as more containing silt or microorganism) when poor, to reduce equipment failure rate, ensureing electromechanical equipment safe and stable operation, it can use
Enclosed water system.Enclosed water system is due to that need to increase water pump, heat exchanger, head-tank or vacuum tank, automation in addition
Control etc. equipment, it is necessary to cost and operating cost it is also of a relatively high.
The content of the invention
The purpose of this utility model is exactly to overcome above-mentioned the deficiencies in the prior art there is provided a kind of reliable, economic power station
The technical water supply system that open and close type is combined, the water quality that is particularly suitable for use in is with the larger power station of seasonal variations.
To achieve the above object, the utility model is adopted the following technical scheme that：
The technical water supply system that power station open and close type is combined, including open type water supply installation, enclosed water supply installation, the first operation
Valve group, the second operation valve group；Described open type water supply installation one end connects with water source, and the other end is wherein operated with first successively all the way
Valve group, cooling object, the second operation valve group and hydropower station tail water or power station downstream connect, the open type water supply installation other end
Another road connects with enclosed water supply installation and hydropower station tail water or power station downstream successively；The enclosed water supply installation and cooling pair
As connecting and constituting circulation loop.
Further, the enclosed water supply installation include heat-exchange system, water pump system and be connected to heat-exchange system with
Voltage-stabilizing system between water pump system.
Further, the heat-exchange system includes open type side control valve group, enclosed side control valve group and heat exchanger；Institute
Heat exchanger is stated to be located between open type side control valve group and enclosed side control valve group；Open type side control valve group is distinguished by two ends
The electrically operated valve and manually-operated gate for connecting and connecting with heat exchanger and open type water supply installation, and two ends respectively with heat exchanger
Constituted with the manually-operated gate that hydropower station tail water or power station downstream connect；Enclosed side control valve group is handed over heat respectively by two ends
Parallel operation and cooling the object electrically operated valve and manually-operated gate that connect and connect, and two ends respectively with heat exchanger and voltage-stabilizing system
The manually-operated gate connected is constituted.
Further, the heat-exchange system includes a work branch heat-exchange system and an emergency bypass heat exchange
System, water pump system includes a work branch water pump system and an emergency bypass water pump system.
Further, the main stable-pressure device of the voltage-stabilizing system is vacuum tank, or is head-tank；When the voltage stabilizing system
When the main stable-pressure device of system is vacuum tank, the voltage-stabilizing system includes vacuum tank, pressure sensor, liquid level gauge, to connect compression empty
The valve of gas system, the valve for running water system of delivering a child, for maintaining voltage stabilizing pressure inside the tank to be not higher than the safety valve of normal value, being used for
The manually-operated gate that emptying vacuum tank is overhauled；The valve for connecing compressed air system is successively by manually-operated gate, motor-driven valve
Door and manually-operated gate are in series；
When the main stable-pressure device of the voltage-stabilizing system is head-tank, the voltage-stabilizing system includes head-tank, used
The valve of manually-operated gate, air bleeding valve, liquid-level switch and the running water system of delivering a child overhauled in emptying head-tank；It is described to deliver a child
The valve of running water system by a manually-operated gate branch road and a branch road being in series by manually-operated gate and automatic water compensating valve simultaneously
Connection is constituted.
Further, the first operation valve group and the second operation valve group are by a normally closed manually-operated gate branch road and one
The branch circuit parallel connection being in series by normally opened manually-operated gate, electrically operated valve and normally opened manually-operated gate is constituted.
Further, the open type water supply installation is supplied water using gravity flow decompression, or is supplied water and by a job using water pump
Branch road and an emergency bypass parallel connection are constituted.
The utility model has the advantages that：
1st, electromechanics of the utility model by the way of open type water supply installation and enclosed water supply installation are combined to power station
Equipment is cooled down, and is applicable to resource of water supply water quality with the obvious power station of seasonal variations, and open type water supply installation and
Enclosed water supply installation can individually put into according to the actual conditions of resource of water supply water quality or all come into operation, independent compared to conventional
Open type technical water supply system, be remarkably improved the reliability of technical water supply system, supplied compared to conventional individually enclosed technology
Water system, the utility model merely add two sets of control valve groups, and cost is relatively low.
2nd, the utility model open type water supply installation and enclosed water supply installation are provided with a work branch and one standby
Branch road, work branch and emergency bypass can mutually switch, and facilitate the maintenance of opposite opened water supply installation and enclosed water supply installation, enter one
Step adds the reliability of the utility model technical water supply system.
Brief description of the drawings
Fig. 1 is the overall construction drawing for the technical water supply system that the utility model power station open and close type is combined；
Fig. 2 is technical water supply system middle open type water supply installation (the gravity flow decompression that the utility model power station open and close type is combined
Supply water) schematic diagram；
Fig. 3 is the technical water supply system middle open type water supply installation (water pump water supply) that the utility model power station open and close type is combined
Schematic diagram；
(vacuum tank is steady for enclosed water supply installation in the technical water supply system that Fig. 4 combines for the utility model power station open and close type
Pressure) schematic diagram；
Fig. 5 is enclosed water supply installation (high pressure pond in the technical water supply system that the utility model power station open and close type is combined
Voltage stabilizing) schematic diagram.
In figure：Open type water supply installation A, enclosed water supply installation B, heat-exchange system B21, water pump system B22, voltage-stabilizing system
B23, open type side control valve group B1, enclosed side control valve group B2, heat exchanger B3, heat exchanger B3-1, heat exchanger B3-2, heat
Exchanger B3-3, heat exchanger B3-4, cooling object C, cooling object import C1, cooling object outlet C2, the first operation valve group
D1, the second operation valve group D2, water source E, hydropower station tail water or power station downstream F, compressed air system system G, life water system
H, life water system I, manually-operated gate 1, electrically operated valve 2, manually-operated gate 3, normally closed manually-operated gate 4, manually-operated gate 5, electrically operated valve
6th, manually-operated gate 7, normally closed manually-operated gate 8, manually-operated gate B01, manually-operated gate B01-1, manually-operated gate B01-2, manually-operated gate
B01-3, manually-operated gate B01-4, electrically operated valve B02, electrically operated valve B02-1, electrically operated valve B02-2, electrically operated valve B02-3, electricity
Movable valve B02-4, manually-operated gate B03, manually-operated gate B03-1, manually-operated gate B03-2, manually-operated gate B03-3, manually-operated gate
B03-4, manually-operated gate B04, manually-operated gate B04-1, manually-operated gate B04-2, manually-operated gate B04-3, manually-operated gate B04-4, electricity
Movable valve B05, electrically operated valve B05-1, electrically operated valve B05-2, electrically operated valve B05-3, electrically operated valve B05-4, manually-operated gate
B06, manually-operated gate B06-1, manually-operated gate B06-2, manually-operated gate B06-3, manually-operated gate B06-4, manually-operated gate A101, manually
Valve A102, electrically operated valve A103, coarse filtration hydrophone A104, refined filtration hydrophone A105, pressure-reducing valve A106, check-valves A107, hand-operated valve
Door A108, manually-operated gate A109, electrically operated valve A1110, coarse filtration hydrophone A111, refined filtration hydrophone A112, pressure-reducing valve A113, check-valves
A114, manually-operated gate A115, pressure sensor A116, hold pressure/relief valve A117, manually-operated gate A118, manually-operated gate A201, hand
Movable valve A202, coarse filtration hydrophone A203, water pump A204, refined filtration hydrophone A205, multifunctional water pump control valve A206, manually-operated gate
A207, manually-operated gate A208, coarse filtration hydrophone A209, water pump A210, refined filtration hydrophone A211, multifunctional water pump control valve A212, hand
Movable valve A213, pressure sensor A214, normally opened manually-operated gate B101, water pump B102, control valve for water pump B103, normally opened hand-operated valve
Door B104, normally opened manually-operated gate B105, water pump B106, control valve for water pump B107, normally opened manually-operated gate B108, pressure sensor
B109, differential pressure switch B124, temperature sensor B125, manually-operated gate B126, manually-operated gate B127, vacuum tank B128, liquid level gauge
B129, pressure sensor B130, manually-operated gate B131, electrically operated valve B132, the valve B23G for connecing compressed air system system, connect
Valve B23H, the valve B23I for running water system of delivering a child, manually-operated gate B133, manually-operated gate B134, the motor-driven valve for water system of living
It is door B135, manually-operated gate B136, safety valve B137, normally opened manually-operated gate B201, water pump B202, control valve for water pump B203, normally opened
Manually-operated gate B204, normally opened manually-operated gate B205, water pump B206, control valve for water pump B207, normally opened manually-operated gate B208, pressure are passed
Sensor B209, differential pressure switch B224, temperature sensor B225, manually-operated gate B226, manually-operated gate B227, automatic water compensating valve
B228, manually-operated gate B229, head-tank B230, liquid-level switch B231, air bleeding valve B232.
Embodiment
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
As shown in figure 1, the technical water supply system that power station open and close type is combined, including open type water supply installation A, enclosed supply water and filled
Put B, the first operation valve group D1 and the second operation valve group D2；
Described open type water supply installation A one end connects with water source E, the other end wherein all the way successively with the first operation valve group D1,
Cooling object C, the second operation valve group D2 and hydropower station tail water or power station downstream F connect, the open type water supply installation A other ends
Another road connects with enclosed water supply installation B and hydropower station tail water or power station downstream F successively；
The enclosed water supply installation B and cooling object C connect and constitute circulation loop, flow through the high temperature after cooling object C
Recirculated water is carried out after heat exchange with carrying out self-opening water supply installation A water in enclosed water supply installation B, then flows into cooling object C, again
Cooling object C is cooled down, moved in circles successively.
The enclosed water supply installation B include heat-exchange system B21, water pump system B22 and be connected to heat-exchange system B21 with
Voltage-stabilizing system B23 between water pump system B22；The heat-exchange system B21 includes open type side control valve group B1, enclosed side and controlled
Valve group B2 and heat exchanger B3；The heat exchanger B3 is located between open type side control valve group B1 and enclosed side control valve group B2；
The electrically operated valve that the open type side control valve group B1 is connected and connected with heat exchanger B3 and open type water supply installation A respectively by two ends
B02 and manually-operated gate B01, and two ends connect respectively with heat exchanger B3 and hydropower station tail water or power station downstream F it is manual
Valve B03 is constituted；The enclosed side control valve group B2 is connected and connected with heat exchanger B3 and cooling object C respectively by two ends
Electrically operated valve B05 and manually-operated gate B04, and the manually-operated gate that two ends connect with heat exchanger B3 and voltage-stabilizing system B23 respectively
B06 is constituted.
The first operation valve group D1 is by a normally closed branch road of manually-operated gate 4 and one by normally opened manually-operated gate 1, motor-driven valve
The branch circuit parallel connection that door 2 and normally opened manually-operated gate 3 are in series is constituted；The second operation valve group D2 is by a normally closed manually-operated gate
8 branch roads and a branch circuit parallel connection being in series by normally opened manually-operated gate 5, electrically operated valve 6 and normally opened manually-operated gate 7 are constituted.
The carrying out practically process for the technical water supply system that above-mentioned power station open and close type is combined is：
When water source E water quality is preferable, open type water supply installation A, the first operation valve group D1 and the second operation valve group need to be only opened
D2, that is, open first and operate electrically operated valve 2, manually-operated gate 1, manually-operated gate 3 and second in valve group D1 to operate in valve group D2
Electrically operated valve 6, manually-operated gate 5, manually-operated gate 7, the electrically operated valve closed in enclosed water supply installation B open types side control valve group B1
B02, manually-operated gate B01, manually-operated gate B03 and electrically operated valve B05 in the control valve group B2 of enclosed side, manually-operated gate B04, manually
Valve B06, now, is opened, the water for cooling object C equivalent to open type technical water supply system (open type water supply installation A)
Flow process be：Water source E → open type water supply installation A → 1 → electrically operated valve of manually-operated gate, 2 → manually-operated gate 3 → cooling object C
→ manually-operated gate 5 → electrically operated valve, 6 → manually-operated gate, 7 → hydropower station tail water or power station downstream F；
When water source E water quality is poor, it is necessary to open open type water supply installation A and enclosed water supply installation B simultaneously, that is, open enclosed
Electrically operated valve B02, manually-operated gate B01, manually-operated gate B03 and the control of enclosed side in water supply installation B open types side control valve group B1
Electrically operated valve B05, manually-operated gate B04, manually-operated gate B06 in valve group B2, the electrically operated valve closed in the first operation valve group D1
2nd, manually-operated gate 1, the electrically operated valve 6 in the operation valve group of manually-operated gate 3 and second D2, manually-operated gate 5, manually-operated gate 7, now,
Opened equivalent to enclosed technical water supply system (enclosed water supply installation B), the water flow process for cooling object C is divided into two
Road：Current 1：Water source E → open type water supply installation A → manually-operated gate B01 → electrically operated valve B02 → heat exchanger B3 → manually-operated gate
B03 → hydropower station tail water or power station downstream F；Current 2：Cooling object outlet C2 → manually-operated gate B04 → electrically operated valve B05 →
Heat exchanger B3 → manually-operated gate B06 → voltage-stabilizing system B23 → water pump system B22 → cooling object import C1；
When electrically operated valve 2 or 6 failure, normally closed manually-operated gate 4 or 8 can be opened as water stream channel, so as to avoid electronic
Valve 2 or 6 overhauls and influences cooling object C normal operation, manually-operated gate 1 and 3 or manually-operated gate 5 and 7 is simultaneously closed off, by electricity
Movable valve 2 or 6 isolates to be overhauled from system.
Further, the open type water supply installation A is supplied water using gravity flow decompression, or is supplied water using water pump.
As shown in Fig. 2 when the open type water supply installation A is supplied water using gravity flow decompression, open type water supply installation A is by a work
Make branch road and an emergency bypass parallel connection is constituted；One end passes through manually-operated gate A101 after the work branch and emergency bypass are in parallel
Connect with water source E, the other end by pressure sensor A116 with cooling object C or enclosed water supply installation B connect and with the company of series connection
Connect hold pressure/relief valve A117 and manually-operated gate A118 connects, and the work branch and emergency bypass are successively by hand-operated valve
Door A102/A109, electrically operated valve A103/A110, coarse filtration hydrophone A104/A111, refined filtration hydrophone A105/A112, pressure-reducing valve A106/
A113, check-valves A107/A114, manually-operated gate A108/A115 are in series.
It is above-mentioned use gravity flow decompression supply water open type water supply installation A carrying out practically process for：
Work branch：Open manually-operated gate A101, A102 and A108, open electrically operated valve A103, the water flowed out from water source E
Purified, passed through again after purification into coarse filtration hydrophone A104 and refined filtration hydrophone A105 through manually-operated gate A101, manually-operated gate A102
Pressure is down to proper level and flow to check-valves A107, manually-operated gate A108 again by pressure-reducing valve A106, pressure after pressure-reducing valve A106
During more than normal range (NR), hold pressure/relief valve A117 and can automatically turn on and pressure after pressure-reducing valve A106 is released to ensure pressure
In normal range (NR), the water with normal pressure is then drained into cooling object C or enclosed water supply installation B again, so as to can also protect
Card cools down object C or enclosed water supply installation B normal work, and work branch water flow process is：Water source E → manually-operated gate A101 →
Manually-operated gate A102 → electrically operated valve A103 → coarse filtration hydrophone A104 → refined filtration hydrophone A105 → pressure-reducing valve A106 → check-valves
A107 → manually-operated gate A108 → pressure sensor A116 → cooling object C or enclosed water supply installation B；
Emergency bypass：Open type water supply installation A terminal pressures are overhauled by pressure sensor A116, when pressure is less than normal value
Think work at present branch trouble, close electrically operated valve A103 and open electrically operated valve A110, opening manually-operated gate A101,
A109, A115, can switch to emergency bypass, and emergency bypass water flow process is：Water source E → manually-operated gate A101 → manually-operated gate
A109 → electrically operated valve A110 → coarse filtration hydrophone A111 → refined filtration hydrophone A112 → pressure-reducing valve A113 → check-valves A114 → manually
Valve A115 → pressure sensor A116 → cooling object C or enclosed water supply installation B；
In addition, when work branch or emergency bypass need maintenance, closing the manually-operated gate of work branch or emergency bypass
A102+A108 or A109+A115, work branch or emergency bypass are isolated to be overhauled from open type water supply installation A.
As shown in figure 3, when the open type water supply installation A is supplied water using water pump, open type water supply installation A is by a work branch
Road and an emergency bypass parallel connection are constituted；One end passes through manually-operated gate A201 and water after the work branch and emergency bypass are in parallel
Source E connects, and the other end is connected by pressure sensor A214 with cooling object C or enclosed water supply installation B, and the work branch
With emergency bypass successively by manually-operated gate A202/A209, coarse filtration hydrophone A203/A209, water pump A204/A210, refined filtration hydrophone
A205/A211, multifunctional water pump control valve A206/A212, manually-operated gate A207/A213 are in series.
It is above-mentioned use water pump supply water open type water supply installation A carrying out practically process for：
Work branch：Manually-operated gate A201, A202 and A207, water pump A204 are opened, is fetched water by water pump A204 from water source E
Afterwards, water is purified through manually-operated gate A201, manually-operated gate A202 into coarse filtration hydrophone A203 and refined filtration hydrophone A205 successively, only
Water after change drains into cooling object C or enclosed water supply installation B, and work branch water flow process is：Water source E → manually-operated gate A201 →
Manually-operated gate A202 → coarse filtration hydrophone A203 → water pump A204 → refined filtration hydrophone A205 → multifunctional water pump control valve A206 → hand
Movable valve A207 → pressure sensor A214 → cooling object C or enclosed water supply installation B；
Emergency bypass：Open type water supply installation A terminal pressures are overhauled by pressure sensor A214, when pressure is less than normal value
Think work at present branch trouble, switch off the pump and A204 and open water pump A210, open manually-operated gate A201, A208, A213,
Emergency bypass is can switch to, emergency bypass water flow process is：Water source E → manually-operated gate A201 → manually-operated gate A208 → coarse filtration water
Device A209 → water pump A210 → refined filtration hydrophone A211 → multifunctional water pump control valve A212 → manually-operated gate A213 → pressure sensing
Device A214 → cooling object C or enclosed water supply installation B；
In addition, when work branch or emergency bypass need maintenance, closing the manually-operated gate of work branch or emergency bypass
A202+A208 or A207+A213, work branch or emergency bypass are isolated to be overhauled from open type water supply installation A.
Further, main stable-pressure device can be vacuum tank B128 in the enclosed water supply installation B voltage-stabilizing systems B23, or
For head-tank B230.
As shown in figure 4, when main stable-pressure device is vacuum tank B128 in the enclosed water supply installation B voltage-stabilizing systems B23,
Enclosed water supply installation B heat-exchange systems B21 includes a work branch heat-exchange system and an emergency bypass heat-exchange system
And set differential pressure switch B124 to monitor heat exchanger B3-1 or B3-2 inlet outlet pressure differential, the control of heat-exchange system B21 middle open types side
Valve group B1 work branch and emergency bypass connects with heat exchanger B3-1/B3-2 and open type water supply installation A respectively by two ends
And connect electrically operated valve B02-1/B02-2 and manually-operated gate B01-1/B01-2, and two ends respectively with heat exchanger B3-1/
The manually-operated gate B03-1/B03-2 that B3-2 and hydropower station tail water or power station downstream F connect is constituted；Enclosed side control valve group B2's
What work branch and emergency bypass connected and connected with heat exchanger B3-1/B3-2 and cooling object outlet C2 respectively by two ends
Electrically operated valve B5-1/B5-2 and manually-operated gate B04-1/B04-2, and two ends respectively with heat exchanger B3-1/B3-2 and voltage stabilizing
The manually-operated gate B06-1/B06-2 that system B23 connects is constituted, and wherein manually-operated gate B06-1/B06-2 passes through temperature sensor
B125 and manually-operated gate B126 connect with voltage-stabilizing system B23；
The water pump system B22 includes a work branch water pump system and an emergency bypass water pump system and water pump system
System B22 one end connects with pressure sensor B109 and cooling object import C1 successively, and the other end is by manually-operated gate B126 and surely
Pressure system B23 connects, and water pump system B22 work branch and emergency bypass successively by normally opened manually-operated gate B101/B105,
Water pump B102/B106, multifunctional water pump control valve B103/B107 are connected composition with normally opened manually-operated gate B104/B108；
The voltage-stabilizing system B23 includes vacuum tank B128, pressure sensor B130, liquid level gauge B129, meets compressed air system
The valve B23G of system, the valve B23H for running water system of delivering a child, for maintaining pressure in vacuum tank B128 to be not higher than the peace of normal value
Full valve B137, for emptying the manually-operated gate B127 that vacuum tank B128 is overhauled；The valve for connecing compressed air system
B23G and deliver a child running water system valve B23H successively by manually-operated gate B131/B134, electrically operated valve B132/B135 and manually
Valve B133/B136, which is connected, to be constituted.
The above-mentioned enclosed water supply installation B for using vacuum tank B128 voltage stabilizings carrying out practically process for：
Open type side control valve group B1：
Work branch：Manually-operated gate B01-1, B03-1 are opened, electrically operated valve B02-1 is opened, from opened water water supply installation
A water passes sequentially through manually-operated gate B01-1, electrically operated valve B02-1 into heat exchanger B3-1 and by enclosed side control valve group
The heat recirculated water that B2 enters in heat exchanger B3-1 carries out heat exchange, then is supplied water by manually-operated gate B03-1 self-openings in future water
Device A water drains into hydropower station tail water or power station downstream, and work branch water flow process is：Carry out self-opening water supply installation A water
→ manually-operated gate B01-1 → electrically operated valve B02-1 → heat exchanger B3-1 → manually-operated gate B03-1 → hydropower station tail water or water power
Stand downstream F；
Emergency bypass：When differential pressure switch B124 measures differential pressure value higher than normal value, that is, think the heat of work at present branch road
Exchanger B3-1 need to be cleared up or overhauled, and now closed electrically operated valve B02-1 and opened electrically operated valve B02-2, open manual
Valve B01-2, B03-2, can switch to emergency bypass, and emergency bypass water flow process is：Carry out self-opening water supply installation A water → hand
Under movable valve B01-2 → electrically operated valve B02-2 → heat exchanger B3-2 → manually-operated gate B03-2 → hydropower station tail water or power station
Swim F.
Enclosed side control valve group B2：
Work branch：Manually-operated gate B04-1, B06-1 are opened, electrically operated valve B5-1 is opened, from cooling object outlet C2 streams
The heat recirculated water gone out enters heat exchanger B3-1 by manually-operated gate B04-1 and electrically operated valve B5-1 and passes through open type side control valve
The water from opened water water supply installation A that group B1 enters heat exchanger B3-1 carries out heat exchange, by manually-operated gate B06-1, temperature
Spend sensor B125, manually-operated gate B126 by after voltage-stabilizing system B23 voltage stabilizings, then cooling object C delivered to by water pump system B22
Mouthful, cooling object C is cooled down, work branch water flow process is：Heat recirculated water from cooling object outlet C2 → manually
Valve B04-1 → electrically operated valve B5-1 → heat exchanger B3-1 → manually-operated gate B06-1 → temperature sensor B125 → hand-operated valve
Door B126 → voltage-stabilizing system B23 → water pump system B22；
Emergency bypass：When temperature sensor B125 measured temperature is higher than normal value, that is, think work at present branch road
Heat exchanger B3-1 need to be cleared up or be overhauled, now close electrically operated valve B5-1 and open electrically operated valve B5-2, open hand
Movable valve B04-2, B06-2, can switch to emergency bypass, and emergency bypass water flow process is：C2 heat is exported from cooling object
Recirculated water → manually-operated gate B04-2 → electrically operated valve B5-2 → heat exchanger B3-2 → manually-operated gate B06-2 → temperature sensor
B125 → manually-operated gate B126 → voltage-stabilizing system B23 → water pump system B22；
Water pump system B22：
Work branch：Multifunctional water pump control valve B103 is opened, water pump B102 starts, will be from heat-exchange system B21 simultaneously
Recirculated water after voltage-stabilizing system B23 voltage stabilizings passes through normally opened manually-operated gate B101, normally opened manually-operated gate B104, pressure sensor
B109 delivers to cooling object import C1 and cooling object C is cooled down, and work branch water flow process is：From heat-exchange system
B21 and recirculated water → normally opened manually-operated gate B101 → water pump B102 → multifunctional water pump control after voltage-stabilizing system B23 voltage stabilizings
Valve B103 processed → normally opened manually-operated gate B104 → pressure sensor B109 → cooling object import C1；
Emergency bypass：When pressure sensor B109 measured value subnormal pressure values, that is, think the event of work at present branch road
Barrier, now opens multifunctional water pump control valve B107, and water pump B106 starts, and can switch to emergency bypass, emergency bypass water flows through
Cheng Wei：Recirculated water → normally opened manually-operated gate B105 → water pump from heat-exchange system B21 and after voltage-stabilizing system B23 voltage stabilizings
B106 → multifunctional water pump control valve B107 → normally opened manually-operated gate B108 → pressure sensor B109 → cooling object import C1；
In addition, when work branch or emergency bypass need maintenance when, close the normally opened manually-operated gate B101 of work branch and
B104 or emergency bypass normally opened manually-operated gate B105 and B108, by work branch or emergency bypass from closed installation system B
Isolation is overhauled.
Voltage-stabilizing system B23：Voltage-stabilizing system B23 plays a part of carrying out voltage stabilizing to enclosed water supply installation B, it is ensured that cooling object
Import C1 pressure value, while can reduce the fluctuation of hydraulic pressure in pipeline, is needed by liquid level gauge in normal range (NR) during work
Water level and pressure in B129 and pressure sensor B130 monitoring vacuum tanks B128, when vacuum tank B128 water levels are less than normal range (NR)
It is interior, moisturizing is carried out to voltage-stabilizing system B23 by opening electrically operated valve B135 and manually-operated gate B134 and manually-operated gate B136；When steady
When pressing tank B128 pressure less than normal value, by opening electrically operated valve B132 and manually-operated gate B131 and manually-operated gate B133 to steady
Press tank B128 to carry out tonifying Qi, maintain vacuum tank B128 pressure within the specific limits；When vacuum tank B128 pressure exceedes normally
During scope, safety valve B137 is automatically turned on, and maintains pressure inside the tank to be not higher than normal value；When electrically operated valve B132 failures, it can lead to
Closing manually-operated gate B131 and B133 is crossed to isolate electrically operated valve B132 and change or overhaul；When electrically operated valve B135 failures,
Electrically operated valve B135 can be isolated by closing manually-operated gate B134 and B136 and change or overhaul；When need empty vacuum tank
When B128 is overhauled, manually-operated gate B127 is opened.
As shown in figure 5, when mainly stable-pressure device is head-tank B230 in the enclosed water supply installation B voltage-stabilizing systems B23
When, enclosed water supply installation B and the enclosed water supply installation B using vacuum tank B128 voltage stabilizings difference are in voltage-stabilizing system B23
Vacuum tank B230 be replaced by head-tank B230, the voltage-stabilizing system B23 includes head-tank B230, for emptying high-order water
The valve B13I of manually-operated gate B226, air bleeding valve B232, liquid-level switch B231 and running water system of delivering a child that pond B230 is overhauled；
The valve B23I of the running water system of delivering a child is by a manually-operated gate B229 branch road and one by manually-operated gate B227 and automatic benefit
The branch circuit parallel connection that water valve B228 is in series is constituted.
Open type side control valve group B1：
Work branch：Manually-operated gate B01-3, B03-3 are opened, electrically operated valve B02-3, work branch water flow process is opened
For：Carry out self-opening water supply installation A water → manually-operated gate B01-3 → electrically operated valve B02-3 → heat exchanger B3-3 → hand-operated valve
Door B03-3 → hydropower station tail water or power station downstream F；
Emergency bypass：When differential pressure switch B224 measures differential pressure value higher than normal value, that is, think the heat of work at present branch road
Exchanger B3-3 need to be cleared up or overhauled, and now closed electrically operated valve B02-3 and opened electrically operated valve B2-4, open hand-operated valve
Door B1-4, B3-4, can switch to emergency bypass, emergency bypass water flow process is：Carry out self-opening water supply installation A water → hand-operated valve
Door B1-4 → electrically operated valve B2-4 → heat exchanger B3-4 → manually-operated gate B3-4 → hydropower station tail water or power station downstream F.
Enclosed side control valve group B2：
Work branch：Manually-operated gate B04-3, B06-3 are opened, electrically operated valve B05-3, work branch water flow process is opened
For：Heat recirculated water → manually-operated gate B04-3 → electrically operated valve B05-3 → heat exchanger B3-3 from cooling object outlet C2 →
Manually-operated gate B06-3 → temperature sensor B225 → voltage-stabilizing system B23 → water pump system B22；
Emergency bypass：When temperature sensor B225 measured temperature is higher than normal value, that is, think work at present branch road
Heat exchanger B3-3 need to be cleared up or be overhauled, now close and electrically operated valve B05-3 and open electrically operated valve B05-4, open
Manually-operated gate B04-4, B06-4, can switch to emergency bypass, and emergency bypass water flow process is：From cooling object outlet C2's
Heat recirculated water → manually-operated gate B04-4 → electrically operated valve B05-4 → heat exchanger B3-4 → manually-operated gate B06-4 → TEMP
Device B225 → voltage-stabilizing system B23 → water pump system B22.
Water pump system B22：
Work branch：Multifunctional water pump control valve B203 is opened, water pump B202 starts, and work branch water flow process is：Come
Recirculated water → normally opened manually-operated gate B201 → water pump B202 from heat-exchange system B21 and after voltage-stabilizing system B23 voltage stabilizings →
Multifunctional water pump control valve B203 → normally opened manually-operated gate B204 → pressure sensor B209 → cooling object import C1；
Emergency bypass：When pressure sensor B209 measured value subnormal pressure values, that is, think the event of work at present branch road
Barrier, opens multifunctional water pump control valve B207, and water pump B206 starts, and can switch to emergency bypass, emergency bypass water flow process is：
Recirculated water → normally opened manually-operated gate B205 → water pump B206 from heat-exchange system B21 and after voltage-stabilizing system B23 voltage stabilizings
→ multifunctional water pump control valve B207 → normally opened manually-operated gate B208 → pressure sensor B209 → cooling object import C1；
In addition, when work branch or emergency bypass need maintenance when, close work branch normally opened manually-operated gate B201 and
B204 or emergency bypass normally opened manually-operated gate B205 and B208, by work branch or emergency bypass from closed installation system B
Isolation is overhauled.
Voltage-stabilizing system B23：Voltage-stabilizing system B23 plays a part of carrying out voltage stabilizing to enclosed water supply installation B, it is ensured that cooling object
Import C1 pressure value, while can reduce the fluctuation of hydraulic pressure in pipeline, is needed by liquid-level switch in normal range (NR) during work
Water level in B231 monitoring head-tanks B230, when water level is less than in normal range (NR), by opening automatic water compensating valve B228 and hand
Movable valve B227 carries out moisturizing to voltage-stabilizing system B23；, can be by closing manually-operated gate B227 when automatic water compensating valve B228 failures
Automatic water compensating valve B228 is isolated and changes or overhauls, at this time, it may be necessary to also can be by opening manually-operated gate B229 to height during moisturizing
Position pond B230 carries out moisturizing；When head-tank B230 needs to be overhauled or cleared up, manually-operated gate B226 can be opened to height
Position pond B230 is emptied.
It should be noted that when the technical water supply system that the utility model power station open and close type is combined normally is run, it is above-mentioned
Electrically operated valve is all in accordance with needing remotely to be carried out opening or closing by control system operation, and manually-operated gate is all in accordance with needing manual unlocking
Or close.
Claims (9)
1. the technical water supply system that power station open and close type is combined, including open type water supply installation (A), enclosed water supply installation (B), it is special
Levy and be：Also include the first operation valve group (D1), the second operation valve group (D2)；Described open type water supply installation (A) one end and water source
(E) connect, the other end wherein operates valve group (D2) and water with the first operation valve group (D1), cooling object (C), second successively all the way
Power plant tail water or power station downstream (F) connect, another road of open type water supply installation (A) other end successively with enclosed water supply installation
(B) connect with hydropower station tail water or power station downstream (F)；The enclosed water supply installation (B) and cooling object (C) connect and constituted
Circulation loop.
2. the technical water supply system that power station open and close type according to claim 1 is combined, it is characterised in that：The enclosed is supplied
Water installations (B) include heat-exchange system (B21), water pump system (B22) and are connected to heat-exchange system (B21) and water pump system
(B22) voltage-stabilizing system (B23) between.
3. the technical water supply system that power station open and close type according to claim 2 is combined, it is characterised in that：The heat exchange
System (B21) includes open type side control valve group (B1), enclosed side control valve group (B2) and heat exchanger (B3)；The heat exchanger
(B3) it is located between open type side control valve group (B1) and enclosed side control valve group (B2)；Open type side control valve group (B1) is by two
Hold the electrically operated valve (B02) and manually-operated gate for connecting and connecting with heat exchanger (B3) and open type water supply installation (A) respectively
, and the manually-operated gate that connects respectively with heat exchanger (B3) and hydropower station tail water or power station downstream (F) of two ends (B01)
(B03) constitute；Enclosed side control valve group (B2) is connected and gone here and there with heat exchanger (B3) and cooling object (C) respectively by two ends
The electrically operated valve (B05) and manually-operated gate (B04) of connection, and two ends respectively with heat exchanger (B3) and voltage-stabilizing system (B23) phase
The manually-operated gate (B06) connect is constituted.
4. the technical water supply system that power station open and close type according to claim 3 is combined, it is characterised in that：The heat exchange
System (B21) includes a work branch heat-exchange system and an emergency bypass heat-exchange system, and water pump system (B22) includes
One work branch water pump system and an emergency bypass water pump system.
5. the technical water supply system that power station open and close type according to claim 4 is combined, it is characterised in that：The voltage stabilizing system
The main stable-pressure device of system (B23) is vacuum tank (B128), or is head-tank (B230).
6. the technical water supply system that power station open and close type according to claim 5 is combined, it is characterised in that：When the voltage stabilizing
When the main stable-pressure device of system (B23) is vacuum tank (B128), the voltage-stabilizing system (B23) includes vacuum tank (B128), pressure
Force snesor (B130), liquid level gauge (B129), the valve (B23G) for connecing compressed air system, the valve for running water system of delivering a child
(B23H), for maintaining vacuum tank (B128) interior pressure to be not higher than the safety valve (B137) of normal value, for emptying vacuum tank
(B128) manually-operated gate (B127) overhauled；The valve (B23G) for connecing compressed air system is successively by manually-operated gate
(B131), electrically operated valve (B132) and manually-operated gate (B133) are in series；The valve (B23H) of the running water system of delivering a child according to
It is secondary in series by manually-operated gate (B134), electrically operated valve (B135) and manually-operated gate (B136).
7. the technical water supply system that power station open and close type according to claim 5 is combined, it is characterised in that：When the voltage stabilizing
When the main stable-pressure device of system (B23) is head-tank (B230), the voltage-stabilizing system (B23) includes head-tank
(B230), for emptying manually-operated gate (B226), air bleeding valve (B232), liquid-level switch that head-tank (B230) is overhauled
(B231) and running water system of delivering a child valve (B13I)；The valve (B23I) of the running water system of delivering a child is by a manually-operated gate
(B229) branch road and a branch circuit parallel connection being in series by manually-operated gate (B227) and automatic water compensating valve (B228) are constituted.
8. the technical water supply system that the power station open and close type according to any claim in claim 1 to 7 is combined, it is special
Levy and be：The first operation valve group (D1) by normally closed manually-operated gate (4) branch road and one by normally opened manually-operated gate (1),
The branch circuit parallel connection that electrically operated valve (2) and normally opened manually-operated gate (3) are in series is constituted；The second operation valve group (D2) is by one
Normally closed manually-operated gate (8) branch road and one connected by normally opened manually-operated gate (5), electrically operated valve (6) and normally opened manually-operated gate (7) and
Into branch circuit parallel connection constitute.
9. the technical water supply system that power station open and close type according to claim 8 is combined, it is characterised in that：The open type is supplied
Water installations (A) depressurize water supply work branch by a gravity flow and a gravity flow decompression water supply emergency bypass parallel connection is constituted, or by one
Individual water pump water supply work branch and a water pump water supply emergency bypass parallel connection are constituted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720170099.9U CN206591566U (en) | 2017-02-24 | 2017-02-24 | The technical water supply system that power station open and close type is combined |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720170099.9U CN206591566U (en) | 2017-02-24 | 2017-02-24 | The technical water supply system that power station open and close type is combined |
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| Publication Number | Publication Date |
|---|---|
| CN206591566U true CN206591566U (en) | 2017-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106759637A (en) * | 2017-02-24 | 2017-05-31 | 长江勘测规划设计研究有限责任公司 | The technical water supply system that power station open and close type is combined |
| CN111549857A (en) * | 2020-05-20 | 2020-08-18 | 河海大学 | Cooling water supply device for plate heat exchanger |
-
2017
- 2017-02-24 CN CN201720170099.9U patent/CN206591566U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106759637A (en) * | 2017-02-24 | 2017-05-31 | 长江勘测规划设计研究有限责任公司 | The technical water supply system that power station open and close type is combined |
| CN111549857A (en) * | 2020-05-20 | 2020-08-18 | 河海大学 | Cooling water supply device for plate heat exchanger |
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