CN110057205A - Box-like cooling water system in a kind of opened water and recirculated water - Google Patents
Box-like cooling water system in a kind of opened water and recirculated water Download PDFInfo
- Publication number
- CN110057205A CN110057205A CN201810047763.XA CN201810047763A CN110057205A CN 110057205 A CN110057205 A CN 110057205A CN 201810047763 A CN201810047763 A CN 201810047763A CN 110057205 A CN110057205 A CN 110057205A
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- water
- condenser
- opened
- open
- recirculated
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 416
- 239000000498 cooling water Substances 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 claims description 47
- 230000008569 process Effects 0.000 claims description 44
- 238000004140 cleaning Methods 0.000 claims description 24
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims description 2
- 238000001816 cooling Methods 0.000 abstract description 19
- 230000008901 benefit Effects 0.000 abstract description 9
- 238000010977 unit operation Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 7
- 238000009835 boiling Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
- 230000026676 system process Effects 0.000 description 3
- 239000003643 water by type Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28B—STEAM OR VAPOUR CONDENSERS
- F28B9/00—Auxiliary systems, arrangements, or devices
- F28B9/04—Auxiliary systems, arrangements, or devices for feeding, collecting, and storing cooling water or other cooling liquid
Abstract
The present invention relates to box-like cooling water systems in a kind of opened water and recirculated water, including open water system, circulation, it is characterized in that, the circulation includes preceding flow path device and rear flow path device, the outlet of the open water system accesses between the preceding flow path device and the rear flow path device, so that flowing through the rear flow path device of condenser behind the recirculated water interflow exported after the preceding flow path device of opened water and condenser in circulation.The beneficial effects of the invention are as follows the present invention by 3~5 DEG C of temperature rise after open type water- to-water heat exchanger of opened water, access the rear water chamber or rear water chamber liaison tube of condenser, opened water is allowed to continue to flow through the second half condenser, temperature is continued 4~5 DEG C of raising, the cooling capacity of opened water is made full use of, the economic benefit of unit operation is improved.
Description
Technical field
The present invention relates to box-like cooling water systems in a kind of opened water and recirculated water.
Background technique
The thermodynamic cycle of common condensing power plant is Rankine cycle, and wherein water supply is heated becomes steam, into steam turbine
Acting power generation, steam discharge need to be cooled to condensed water by condenser, and condensed water pressurizes into water supply, repetitive cycling.For by steamer
Machine steam discharge is cooled to the cooling water of condensed water, abbreviation recirculated water.Low-temperature circulating water enters condenser, absorbs the heat of turbine discharge
Amount, water temperature rise, and temperature rise is usually 8~10 DEG C, is then departed from condenser, heat is discharged to external environment.
The quantity of circulating water of 600000 kilowatts of units is about~6 ten thousand t/h, and the quantity of circulating water of 1,000,000 kilowatts of units is about~9 ten thousand t/
h。
There are many more equipment in condensing power plant, generate heat in normal course of operation, need to shed its heat, to maintain
It operates normally.For equipment is run the cooling waters of the heat transfers to external environment such as heat dissipation, abbreviation opened water.Low temperature opened water
Into open type water- to-water heat exchanger, heats, the water temperature such as absorption equipment operation heat dissipation rise, and temperature rise is usually 3~5 DEG C, is then departed from out
Heat is discharged to external environment by formula water- to-water heat exchanger.
The open type water of 600000 kilowatts of units is about 3000t/h, and the open type water of 1,000,000 kilowatts of units is about 4500t/h.
Usual opened water is identical as the source of recirculated water and whereabouts.As can be seen from the above data, the temperature rise of recirculated water is 8
~10 DEG C, and the temperature rise of opened water is 3~5 DEG C, opened water temperature rise is only about the 50% of recirculated water, and opened water cooling capacity is not filled
Divide and utilizes just discharge.
Conventional opened water and recirculated water canonical system figure are shown in attached drawing 1 and attached drawing 2.
Attached drawing 1 is the opened water and recirculated water canonical system figure of single back pressure condenser.Usual every condensing-type generating set
With two condensers, the recirculated water of two condensers of single back pressure be it is parallel, the back pressure of two condensers is identical.
Attached drawing 2 is the opened water and recirculated water canonical system figure of double pressure condenser.Two condensers of double back pressures follow
Ring water is tandem, and the back pressure one low one of two condensers is high.
Box-like cooling water system in opened water of the present invention and recirculated water opens 3~5 DEG C of temperature rise after open type water- to-water heat exchanger
Formula water accesses the rear water chamber or rear water chamber liaison tube of condenser, allows opened water to continue to flow through the second half condenser, temperature is continued
4~5 DEG C are increased, the cooling capacity of opened water is made full use of, efficiency of thermal cycle is improved, reaches energy-saving effect.
Meanwhile open water system can with the filter of common recycle water system, cleaning device, valve and pipeline etc., thus
Investment is reduced, is increased economic efficiency.
The existing opened water generallyd use and circulation technology are shown in attached drawing 1 and attached drawing 2.
Attached drawing 1 and the common feature of attached drawing 2 are that opened water and recirculated water are arranged respectively quoted from general pipeline, respectively to general pipeline.Open type
Water passes through open type water- to-water heat exchanger, and temperature rise is 3~5 DEG C；Recirculated water passes through condenser, and temperature rise is 8~10 DEG C.Opened water temperature rise is only
About the 50% of recirculated water, opened water cooling capacity, which is underused, to be just discharged.
Attached drawing 1 is the opened water and recirculated water canonical system figure of single back pressure condenser.Usual every condensing-type generating set
With two condensers, the recirculated water of two condensers of single back pressure be it is parallel, every side recirculated water flows separately through every left side
And right side, two condenser circulating water temperature are identical, back pressure is identical.
Attached drawing 2 is the opened water and recirculated water canonical system figure of double pressure condenser.Two condensers of double back pressures follow
Ring water is tandem, and every side recirculated water first flows through the two sides of a condenser, passes through the two sides of another condenser, and two solidifying
The circulating water temperature one low one of vapour device is high, back pressure one low one is high.
In attached drawing 1 and attached drawing 2, circulation is equipped with corresponding inlet and outlet isolating valve, filter and cleaning device, open type
Water system is separately furnished with corresponding inlet and outlet isolating valve, filter and cleaning device, invests the summation for two systems.
In existing condensing-type generation technology, usual opened water and recirculated water are arranged respectively quoted from water inlet manifold, respectively to draining
General pipeline.Opened water passes through open type water- to-water heat exchanger, and temperature rise is 3~5 DEG C；Recirculated water passes through condenser, and temperature rise is 8~10 DEG C.Open type
It is only about 50% recirculated water temperature rise that water temperature, which rises, and opened water cooling capacity, which is underused, to be just discharged.
In addition, circulation and open water system are respectively provided with the inlet and outlet isolating valve of respective system, filter and clear
Cleaning device invests the summation for two systems, relatively high.
Summary of the invention
It is an object of the invention to make up the deficiencies in the prior art, one kind is provided and is capable of providing cooling capacity, improves heating power
Cycle efficieny reaches energy-saving effect, while box-like cooling water system in the opened water and recirculated water increased economic efficiency.
In order to achieve the above object, the system of a kind of opened water and box-like cooling water in recirculated water, including opened water are provided
System, circulation, which is characterized in that the circulation includes preceding flow path device and rear flow path device, and described opens
Between the outlet access of the formula water system preceding flow path device and the rear flow path device, so that the open type in circulation
The rear flow path device of condenser is flowed through behind the recirculated water interflow exported after water and the preceding flow path device of condenser.
Box-like cooling water system is distributed in fashion described above in open water system and recirculated water of the invention, so that open type water system
The draining of system leads to the middle position of condenser circulating water, and it is later half to continue through condenser after allowing opened water to collaborate with recirculated water
Journey makes full use of the cooling capacity of opened water.
Respectively quoted from water inlet manifold, recirculated water enters after the tube bank of preceding process and leaves open water system for opened water and recirculated water
Opened water water flow collaborate and flow into after process restrain, eventually drain into main sewer.
In one embodiment, the circulation includes the condensing including at least the tube bank of preceding process and the tube bank of rear process
Device, between the outlet access of the open water system preceding process tube bank and the rear process tube bank.
In the present invention, circulation includes at least two process tube banks, wherein connecting with water inlet line is preceding stream
Journey tube bank, connecting with outlet conduit is rear process tube bank.It, can be not extra between preceding process tube bank and the tube bank of rear process
Process tube bank, then the condenser is double-flow, can also be equipped with multiple processes and restrain, then the circulation is multipaths
's.It should be understood that the circulation of either double-flow or multipaths is within the scope of the invention.
Preferably, the circulation includes the condenser of multiple parallel connections, and each condenser includes at least it by stream
Journey tube bank and the tube bank of rear process, the preceding process tube bank of each condenser of outlet access of the open water system and rear process pipe
Between beam.
Preferably, being two condensers in parallel.
Preferably, each condenser includes rear water chamber, water chamber after the outlet connection of the preceding process tube bank, after described
Water chamber after the entrance connection of process tube bank, after the outlet access of the open water system in water chamber.
Or each condenser includes rear water chamber, water chamber after the outlet connection of the preceding process tube bank, the rear stream
Water chamber after the entrance connection of journey tube bank, after the outlet access of the open water system in water chamber liaison tube.
In one embodiment, the circulation includes two concatenated condensers, the condensing being connected with water inlet
Device is preceding flow path device, and the condenser B being connected with water outlet is rear flow path device.
Circulation includes that multiple condensers are connected wherein being connected with water inlet is preceding flow path device with water outlet
Rear flow path device, remaining condenser is connected serially between two condensers.
Preferably, each condenser has rear water chamber and front water chamber, the rear water chamber and posterior condensing of first condenser
The front water chamber of device is identical to form series connection.
What the present invention occurred successively can be understood as from water inlet being closely elder generation, after being far from water inlet.
Preferably, the outlet of the open water system accesses the rear water chamber of first condenser.
Or preferably, the open water system outlet access after water chamber liaison tube.
In one embodiment, filter is provided on the water inlet line of open water system.
In one embodiment, cleaning device is equipped on the outlet conduit of condenser.
Preferably, open water system and circulation, which share, filter, and the water inlet line of open water system is arranged in
On, open water system and circulation, which share, cleaning device, is arranged on the outlet conduit of condenser.
It, accordingly can be with common recycle water system after the water inlet of open type water- to-water heat exchanger can be quoted from circulating water inlet isolating valve
The equipment such as isolating valve, filter, cleaning device, to reduce construction investment.
The open water system includes open type water- to-water heat exchanger, and the open type water- to-water heat exchanger is integrated with condenser to be set
It sets.
Open type water- to-water heat exchanger can be made combination type with condenser, to reduce opened water duct length, reduction is opened
The occupied area of formula water- to-water heat exchanger and open type waterpipe accordingly reduces area of mill site, reduces construction investment.
A kind of method of opened water and box-like cooling water in recirculated water, including open water system and circulation, it is special
Sign is that the draining of open water system leads to the middle position of circulation, and the draining of open water system and circulation is allowed to be hydrated
Condenser the second half is continued through after stream.
In one embodiment, recirculated water flows through the preceding flow path device of circulation from water inlet pipe, and about 3~5 DEG C of temperature rise,
Opened water flows through open type water- to-water heat exchanger from water inlet pipe, and about 3~5 DEG C of temperature rise, then and in the recirculated water that is flowed out after preceding flow path device
With, flow through rear flow path device together, about 4~5 DEG C of temperature rise.
The beneficial effects of the present invention are: 3~5 DEG C of temperature rise after open type water- to-water heat exchanger of opened water is accessed condensing by the present invention
The rear water chamber of device or rear water chamber liaison tube, allow opened water to continue to flow through the second half condenser, and temperature is continued 4~5 DEG C of raising, is filled
Divide the cooling capacity using opened water, improves efficiency of thermal cycle, reach energy-saving effect.
Meanwhile open water system can with the filter of common recycle water system, cleaning device, valve and pipeline etc., thus
Investment is reduced, is increased economic efficiency.
It should be understood that within the scope of the present invention, above-mentioned each technical characteristic of the invention and below in (such as embodiment)
It can be combined with each other between each technical characteristic specifically described, to form a new or preferred technical solution.As space is limited,
Not repeated them here.
Detailed description of the invention
Fig. 1 is the boiled water formula and circulation figure of prior art list back pressure condenser；
Fig. 2 is the boiled water formula and circulation figure of prior art double pressure condenser；
Fig. 3 is single back pressure recirculated water and boiling system figure according to a first embodiment of the present invention；
Fig. 4 is single back pressure recirculated water and boiling system figure according to a second embodiment of the present invention；
Fig. 5 is double back pressure recirculated waters and boiling system figure according to a third embodiment of the present invention；
Fig. 6 is double back pressure recirculated waters and boiling system figure according to a fourth embodiment of the present invention；
Wherein
1- open water system
11- open type water- to-water heat exchanger A 12- open type water- to-water heat exchanger B
2- circulation
21- condenser A 22- condenser B
3- filter
4- cleaning device
5- isolating valve
Specific embodiment
In existing condensing-type generation technology, usual opened water and recirculated water are arranged respectively quoted from water inlet manifold, respectively to draining
General pipeline.Opened water passes through open type water- to-water heat exchanger, and temperature rise is 3~5 DEG C；Recirculated water passes through condenser, and temperature rise is 8~10 DEG C.Open type
It is only about 50% recirculated water temperature rise that water temperature, which rises, and opened water cooling capacity, which is underused, to be just discharged.In addition, circulation and
Open water system is respectively provided with inlet and outlet isolating valve, filter and the cleaning device of respective system, invests as the total of two systems
With it is relatively high.
In opened water and recirculated water of the invention box-like cooling water system change traditional opened water and recirculated water respectively into
The circuit of water, opened water and circulation water section after will heat up carry out interflow opposite opened water the second half and carry out temperature rise, can make open
Formula water cooling capacity makes full use of and is discharged, due to it is this walk aqueous mode have certain combination so that two systems can be with
Isolating valve, filter and cleaning device are shared, so that cost is greatly lowered.
Term is explained:
As used herein, term " preferred ", " optimal ", " typical ", " illustratively " or " optionally " does not limit this
The range of invention or embodiment.
As used herein, term "available" expression include or do not include and/or with or without the use of and/or realize or do not realize
And/or the selection or influence for occurring or not occurring, and the selection constitutes some embodiments of the present invention or its consequence at least
A part, without limiting the scope of the invention.
When enumerating a series of values, merely to it is convenient or succinct, including all possible money range and the range side
Single number in or around boundary.Any numerical value, unless otherwise defined, further including practical approximation, and integer value is not arranged
Except fractional value.Subrange value and practical approximation are not construed as special disclosed value.
Unless the context indicates otherwise, plural form is not excluded for referring to the object of singular.
Term:
Recirculated cooling water: it in condensing power plant, for turbine discharge to be cooled to the cooling water of condensed water, referred to as follows
Ring water.
Open type cooling water: in condensing power plant, for equipment is run the heat transfers such as heat dissipation to the cold of external environment
But water, abbreviation opened water.
In existing condensing-type generation technology, usual opened water and recirculated water are arranged respectively quoted from water inlet manifold, respectively to draining
General pipeline.Opened water passes through open type water- to-water heat exchanger, and temperature rise is 3~5 DEG C；Recirculated water passes through condenser, and temperature rise is 8~10 DEG C.Open type
It is only about 50% recirculated water temperature rise that water temperature, which rises, and opened water cooling capacity, which is underused, to be just discharged.In addition, circulation and
Open water system is respectively provided with inlet and outlet isolating valve, filter and the cleaning device of respective system, invests as the total of two systems
With it is relatively high.
Box-like cooling water system technology in the novel opened water and recirculated water of invention.The present invention changes opened water
3~5 DEG C of temperature rise of opened water after hot device accesses the rear water chamber or rear water chamber liaison tube of condenser, after allowing opened water to continue to flow through
Temperature is continued 4~5 DEG C of raising by half way condenser, makes full use of the cooling capacity of opened water, is improved efficiency of thermal cycle, is reached
To energy-saving effect.Meanwhile open water system can with the filter of common recycle water system, cleaning device, valve and pipeline etc., from
And investment is reduced, it increases economic efficiency.
Main advantages of the present invention
(1) draining of open water system leads to the middle position of condenser circulating water, such as water chamber or rear water after condenser
Room liaison tube continues through the later half process of condenser after allowing opened water and recirculated water to collaborate, makes full use of the cooling energy of opened water
Power；
(2) new open type water is suitable for single back pressure condensing-type generating set with box-like cooling water system in recirculated water, also fits
For more back pressures (double back pressures, three back pressures etc.) condensing-type generating set；
It (3), accordingly can be with common recycle water system after the water inlet of open type water- to-water heat exchanger can be quoted from circulating water inlet isolating valve
The equipment such as isolating valve, filter, the cleaning device of system, to reduce construction investment；
(4) open type water- to-water heat exchanger can be made combination type with condenser, to reduce opened water duct length, reduce
The occupied area of open type water- to-water heat exchanger and open type waterpipe accordingly reduces area of mill site, reduces construction investment.
In existing condensing-type generation technology, opened water and recirculated water are arranged respectively quoted from general pipeline, respectively to general pipeline.Opened water warp
Open type water- to-water heat exchanger is crossed, temperature rise is 3~5 DEG C；Recirculated water passes through condenser, and temperature rise is 8~10 DEG C.Opened water temperature rise is only to follow
About the 50% of ring water, opened water cooling capacity, which is underused, to be just discharged.
In addition, circulation and open water system are respectively provided with the inlet and outlet isolating valve of respective system, filter and clear
Cleaning device invests the summation for two systems, relatively high.
For this purpose, box-like cooling water system technology in the novel opened water and recirculated water of invention.The present invention will open
3~5 DEG C of temperature rise of opened water after formula water- to-water heat exchanger accesses the rear water chamber or rear water chamber liaison tube of condenser, opened water is allowed to continue
The second half condenser is flowed through, temperature is continued 4~5 DEG C of raising, makes full use of the cooling capacity of opened water, improves unit operation
Economic benefit.It is expected that every 600,000 kilowatts of condensing-type generating sets, it every year can be 600,000 yuan of additional income, to every 1,000,000 thousand
Watt condensing-type generating set, every year can be 1,000,000 yuan of additional income.
Meanwhile open water system can with the filter of common recycle water system, cleaning device, valve and pipeline etc., thus
Investment is reduced, is increased economic efficiency.To every 600,000 kilowatts of condensing-type generating sets, investment can reduce about 3,000,000 yuan；To every
1000000 kilowatts of condensing-type generating sets, investment can reduce about 5,000,000 yuan.In addition, open type water- to-water heat exchanger can be with condenser
It is made into combination type, to be further reduced opened water duct length, reduces the land occupation face of open type water- to-water heat exchanger and open type waterpipe
Product, accordingly reduces area of mill site, further decreases first construction investments up to a million.
Presently preferred embodiments of the present invention is described in detail below with reference to attached drawing, it is of the invention to be clearer to understand
Objects, features and advantages.It should be understood that embodiment shown in the drawings does not limit the scope of the present invention, and only it is
Illustrate the connotation of technical solution of the present invention.
The system of box-like cooling water includes open water system 1, circulation in a kind of opened water of the present invention and recirculated water
2.Circulation 2 includes condenser, pipeline, isolating valve, filter, cleaning device etc.；Open water system 1 is changed including opened water
Hot device pipeline, isolating valve, filter, cleaning device etc..New open type water is applicable to cooling water system box-like in recirculated water
Single back pressure or more back pressures (double back pressures, three back pressures etc.), it is different with pipeline connection according to back pressure of condenser, 3~6 institute of attached drawing can be divided into
The not homologous ray shown.
Embodiment 1
Attached drawing 3 shows the recirculated water and open water system process of single back pressure.Open water system 1 includes opened water in parallel
Heat exchanger A and open type water- to-water heat exchanger B, and water inlet line is connect with the entrance of open type water- to-water heat exchanger A and open type water- to-water heat exchanger B.
Circulation 2 includes the condenser A and condenser B of double-flow, and the two is connected using parallel way.Condenser A and condenser B
Entrance be connected into water inlet line respectively, the outlet conduit of open type water- to-water heat exchanger A and open type water- to-water heat exchanger B shunt two condensings of connection
Water chamber after the contact of device, so that opened water collaborates with recirculated water and pass through the second half to export to main sewer.
Double-flow condenser refers to that condenser includes the condenser of preceding process tube bank and the tube bank of rear process.Wherein with water inlet pipe
Road connection is preceding process tube bank, and connecting with outlet conduit is rear process tube bank.Described in the outlet access of open water system
Between preceding process tube bank and the rear process tube bank.In the present embodiment, preceding flow path device and rear flow path device are that have condensing
What the tube bank of preceding process and the tube bank of rear process of device undertook.
Specific as follows: recirculated water flows separately through the side (process tube bank before i.e.) of two condensers, temperature rise from water inlet manifold
About 4~5 DEG C, subsequently into water chamber after the contact of condenser；Opened water respectively enters two open type water- to-water heat exchangers, temperature rise from general pipeline
It about 3~5 DEG C, then guides to after the contact of condenser and is closed in water chamber, with recirculated water, flow through the other side of two condensers together
(process tube bank after i.e.), is then discharged to main sewer by about 4~5 DEG C of temperature rise.
Compared with conventional scheme, the overall temperature rise of 3 middle open type water of attached drawing improves 4~5 DEG C, and cooling capacity obtains more benefits
With, be conducive to improve unit operation economic benefit.It is expected that every 600,000 kilowatts of units, it every year can be 600,000 yuan of additional income,
It, every year can be 1,000,000 yuan of additional income to every 1,000,000 kilowatts of units.
In the present embodiment, filter 3, cleaning device 4 and isolating valve 5 are respectively in open water system and circulation
Setting.
Embodiment 2
Attached drawing 4 shows the opened water and circulation process of second of single back pressure, and embodiment 2 is similar to Example 1, no
It, accordingly can be with common recycle after being the water inlet of the open type water- to-water heat exchanger of attached drawing 4 quoted from circulating water inlet isolating valve with place
The equipment such as isolating valve, filter, the cleaning device of water system, to reduce construction investment.
In the opened water and recirculated water of single back pressure in Fig. 4 in box-like cooling system, two opened waters of open water system
Two condensers A, B of heat exchanger A, B and circulation, are respectively combined to form two systems in parallel, and each system includes
One open type water- to-water heat exchanger and a condenser connect with filter 3 after water inlet pipe connection isolating valve, connect respectively by taking A group as an example
Open type water- to-water heat exchanger A 11 and condenser A 21 is accessed, 11 water outlet of open type water- to-water heat exchanger A accesses the rear water chamber of condenser A 21
The second half of condenser A 21 is flowed into behind interflow, the outlet series connection cleaning device 4 and isolating valve 5 of condenser A 21 are simultaneously connected to draining
Pipeline.B group is identical as A group connection type.Wherein open type water- to-water heat exchanger A11 and condenser A21 are integrated setting.
To every 600,000 kilowatts of condensing-type generating sets, investment can reduce about 3,000,000 yuan；To every 1,000,000 kilowatts of condensings
Formula generating set, investment can reduce about 5,000,000 yuan.In addition, the open type water- to-water heat exchanger in attached drawing 4 can be made into zoarium with condenser
Formula reduces the occupied area of open type water- to-water heat exchanger and open type waterpipe, accordingly subtracts to be further reduced opened water duct length
Few area of mill site, further decreases construction investment.
Embodiment 3
Attached drawing 5 shows the recirculated water and open water system process of double back pressures.Open water system 1 in the present embodiment includes
Open type water- to-water heat exchanger A 11 and open type water- to-water heat exchanger B 12 in parallel.And water inlet line and open type water- to-water heat exchanger A and opened water
The entrance of heat exchanger B connects.Circulation 2 includes concatenated condenser A 21 and condenser B22.For purposes of this application, it coagulates
Vapour device system can be understood as again Double-casing, double back pressures (to being single back pressure for shell), single process (to every shell and
Speech is single process).Recirculated water serially respectively enters A, B condenser, enters from low back pressure condenser A, and water outlet is solidifying into high back pressure
Vapour device B, is then discharged out, due to recycling the difference of inflow temperature, so foring high and low steam chest.The side Qi Shui goes with each other all the time.
The entrance of condenser A21 connects water inlet line, and the outlet of condenser B22 connects drainage pipeline, open type water- to-water heat exchanger A and opened water
The outlet conduit of heat exchanger B shunts in the contact pipeline of two condensers of connection, so that opened water collaborates and passes through with recirculated water
The second half is exported to main sewer.
The condenser A being connected with water inlet is preceding flow path device, and the condenser B being connected with water outlet is rear flow path device.
Each condenser have rear water chamber and front water chamber, the rear water chamber of first condenser it is identical as the front water chamber of posterior condenser with
Form series connection.What the present invention occurred successively can be understood as from water inlet being closely elder generation, after being far from water inlet.Open type water system
Water chamber liaison tube after the outlet access of system.
Specific as follows: recirculated water first flows through the left and right side of a condenser from water inlet manifold, and about 4~5 DEG C of temperature rise,
Subsequently into the rear water chamber liaison tube of condenser；Opened water respectively enters two open type water- to-water heat exchangers, temperature rise about 3~5 from general pipeline
DEG C, the rear water chamber liaison tube of condenser is then guided to, and is closed in recirculated water, flows through the left side and the right side of another condenser together
Side, is then discharged to main sewer by about 4~5 DEG C of temperature rise.
Compared with conventional scheme, the overall temperature rise of 5 middle open type water of attached drawing improves 4~5 DEG C, and cooling capacity obtains more benefits
With, be conducive to improve unit operation economic benefit.It is expected that receipts can be increased every year to every 600,000 kilowatts of condensing-type generating sets
600,000 yuan of benefit, every year can be 1,000,000 yuan of additional income to every 1,000,000 kilowatts of condensing-type generating sets.
In the present embodiment, filter 3, cleaning device 4 and isolating valve 5 are connected to open water system and circulating water
It is arranged in system.
Embodiment 4
Attached drawing 6 shows the recirculated water and open water system process of second pair of back pressure.Embodiment 4 is similar with attached drawing 3,
The difference is that can accordingly share and follow after the water inlet of the open type water- to-water heat exchanger of attached drawing 6 is quoted from circulating water inlet isolating valve
The equipment such as isolating valve, filter, the cleaning device of ring water system, to reduce construction investment.To every 600,000 kilowatts of condensing-types
Generating set, investment can reduce about 3,000,000 yuan；To every 1,000,000 kilowatts of condensing-type generating sets, investment can reduce about 5,000,000
Member.In addition, the open type water- to-water heat exchanger in attached drawing 6 can be made into combination type with condenser, to be further reduced open type waterpipe
Length reduces the occupied area of open type water- to-water heat exchanger and open type waterpipe, accordingly reduces area of mill site, further decrease
Million yuan of construction investments.
In the opened water and recirculated water of double back pressures in Fig. 6 in box-like cooling system, two condenser A, B series connection, wherein
Two open type water- to-water heat exchangers A, B of open water system are integrated on a condenser or are integrated in respectively on two condensers.
In the present embodiment, open type water- to-water heat exchanger A, B two are integrated on condenser A, and specifically, water inlet pipe shunts two isolation of access
Valve 5, filter 3, a chamber and an open type water- to-water heat exchanger of each pipeline shunt access condenser A21.For example, a pipeline
Left side and the open type water- to-water heat exchanger A of condenser 21 are accessed, and is collaborated in outlet, such as collaborate in contact pipeline, condensing is connected into
The right side of device B 22 is simultaneously connect after even cleaner 4 and isolating valve 5 are connected in outlet with drainpipe.One pipeline accesses condenser 21
Right side and open type water- to-water heat exchanger B, and outlet collaborate, such as contact pipeline in collaborate, be connected into the left side of condenser B 22
And it is connect after even cleaner 4 and isolating valve 5 are connected in outlet with drainpipe.
Presently preferred embodiments of the present invention has already been described in detail above, it is understood that read understand it is of the invention above-mentioned
After teaching content, those skilled in the art can make various modifications or changes to the present invention, and such equivalent forms are equally fallen within
The scope of the appended claims of the present application.
Claims (10)
1. box-like cooling water system in a kind of opened water and recirculated water, which is characterized in that including open water system and circulating water
System, which is characterized in that the circulation includes preceding flow path device and rear flow path device, the outlet of the open water system
It accesses between the preceding flow path device and the rear flow path device, so that being flowed before the opened water and condenser in circulation
The rear flow path device of condenser is flowed through behind the recirculated water interflow exported after range device.
2. box-like cooling water system in opened water according to claim 1 and recirculated water, which is characterized in that the circulation
Water system includes the condenser including at least the tube bank of preceding process and the tube bank of rear process, before the outlet access of open water system is described
Between process tube bank and the rear process tube bank.
3. box-like cooling water system in opened water according to claim 2 and recirculated water, which is characterized in that the circulation
Water system includes the condenser of multiple parallel connections, and each condenser includes at least it and restrains by process tube bank and rear process, described
The outlet of open water system accesses between the preceding process tube bank of each condenser and the tube bank of rear process.
4. box-like cooling water system in opened water according to claim 2 and recirculated water, which is characterized in that each condenser
Including rear water chamber, water chamber after the outlet connection of the preceding process tube bank, water chamber after the entrance connection of the rear process tube bank,
After the outlet access of the open water system in water chamber.
5. box-like cooling water system in opened water according to claim 2 and recirculated water, which is characterized in that each condenser
Including rear water chamber, water chamber after the outlet connection of the preceding process tube bank, water chamber after the entrance connection of the rear process tube bank,
After the outlet access of the open water system in water chamber liaison tube.
6. box-like cooling water system in opened water according to claim 1 and recirculated water, which is characterized in that the circulation
Water system includes two concatenated condensers, and the condenser being connected with water inlet is preceding flow path device, and what is be connected with water outlet is solidifying
Vapour device is rear flow path device.
7. box-like cooling water system in opened water according to claim 6 and recirculated water, which is characterized in that the opened water
Water chamber liaison tube after the outlet access of system.
8. box-like cooling water system in opened water according to any one of claims 1 to 7 and recirculated water, which is characterized in that open
Formula water system and circulation, which share, filter, is arranged on the water inlet line of open water system, open water system and follows
Ring water system, which shares, cleaning device, is arranged on the outlet conduit of condenser.
9. box-like cooling water system in opened water according to any one of claims 1 to 7 and recirculated water, which is characterized in that institute
The open water system stated includes open type water- to-water heat exchanger, and the open type water- to-water heat exchanger and condenser are integrated setting.
10. a kind of method of box-like cooling water in opened water and recirculated water, including open water system and circulation, feature
It is, the draining of open water system leads to the middle position of circulation, and the draining of open water system and recirculated water is allowed to collaborate
After continue through condenser the second half.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810047763.XA CN110057205A (en) | 2018-01-18 | 2018-01-18 | Box-like cooling water system in a kind of opened water and recirculated water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810047763.XA CN110057205A (en) | 2018-01-18 | 2018-01-18 | Box-like cooling water system in a kind of opened water and recirculated water |
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| CN110057205A true CN110057205A (en) | 2019-07-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810047763.XA Pending CN110057205A (en) | 2018-01-18 | 2018-01-18 | Box-like cooling water system in a kind of opened water and recirculated water |
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| CN207741593U (en) * | 2018-01-18 | 2018-08-17 | 中国电力工程顾问集团华东电力设计院有限公司 | A kind of opened water and box-like cooling water system in recirculated water |
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| US20040011046A1 (en) * | 1999-08-06 | 2004-01-22 | Pierson Tom L. | System for staged chilling of inlet air for gas turbines |
| US20100207394A1 (en) * | 2007-05-29 | 2010-08-19 | Kwong-Keung Leung | Device and method for utilizing water flow kinetic energy continuously |
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