CN106930790A - Based on seawater as cooling water thermal power plant's heat recovery system - Google Patents
Based on seawater as cooling water thermal power plant's heat recovery system Download PDFInfo
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- CN106930790A CN106930790A CN201710005356.8A CN201710005356A CN106930790A CN 106930790 A CN106930790 A CN 106930790A CN 201710005356 A CN201710005356 A CN 201710005356A CN 106930790 A CN106930790 A CN 106930790A
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- permeable brick
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- 239000013535 sea water Substances 0.000 title claims abstract description 50
- 239000000498 cooling water Substances 0.000 title claims abstract description 18
- 238000011084 recovery Methods 0.000 title claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 104
- 238000003973 irrigation Methods 0.000 claims abstract description 18
- 230000002262 irrigation Effects 0.000 claims abstract description 18
- 239000011449 brick Substances 0.000 claims description 39
- 238000005260 corrosion Methods 0.000 claims description 18
- 230000007797 corrosion Effects 0.000 claims description 18
- 239000010410 layer Substances 0.000 claims description 11
- 208000028804 PERCHING syndrome Diseases 0.000 claims description 9
- 239000004576 sand Substances 0.000 claims description 7
- 238000009413 insulation Methods 0.000 claims description 5
- 239000002356 single layer Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 11
- 230000008569 process Effects 0.000 abstract description 9
- 239000000463 material Substances 0.000 abstract description 7
- 239000002699 waste material Substances 0.000 abstract description 3
- 239000012535 impurity Substances 0.000 description 16
- 238000004140 cleaning Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000009833 condensation Methods 0.000 description 4
- 230000005494 condensation Effects 0.000 description 4
- 238000001704 evaporation Methods 0.000 description 4
- 230000008020 evaporation Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 241000195493 Cryptophyta Species 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 239000003653 coastal water Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000005619 thermoelectricity Effects 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/32—Collecting of condensation water; Drainage ; Removing solid particles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K17/00—Using steam or condensate extracted or exhausted from steam engine plant
- F01K17/02—Using steam or condensate extracted or exhausted from steam engine plant for heating purposes, e.g. industrial, domestic
- F01K17/025—Using steam or condensate extracted or exhausted from steam engine plant for heating purposes, e.g. industrial, domestic in combination with at least one gas turbine, e.g. a combustion gas turbine
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2220/00—Application
- F05D2220/60—Application making use of surplus or waste energy
- F05D2220/64—Application making use of surplus or waste energy for domestic central heating or production of electricity
Abstract
Based on seawater as cooling water thermal power plant's heat recovery system, belong to power plant field, in order to reduce thermal power plant's heat waste, and reduce the thermal pollution of thermal power plant, allow the user for being dispersed in seawater discharge channel using the used heat of power plant, and in heat transfer process, heat exchange efficiency is high, consumptive material loss is low, exchanged heat with the turbine condenser of thermal power plant as the seawater of cooling water, seawater after heat exchange is entered by the water inlet of side hermatic door, is exchanged heat with the intermediary's water in PE intermediaries water return ducts in the closed irrigation canals and ditches.
Description
Technical field
The invention belongs to power plant field, be related to it is a kind of based on seawater as cooling water thermal power plant's heat recovery system.
Background technology
Thermal power plant needs to use cooling water with cooling steam, and general power plant cooling water comes from cooling tower, and the electricity in coastal waters
Factory can be introduced directly into seawater steam is cooled down to reach the purpose gathered materials on the spot as cooling water.Seawater completes steam condensation meeting
When improving self heat, such as Dalian winter, the temperature of the seawater of completion condensation can reach 18 degree or so, and general power plant can be by this
Part seawater is back in the sea, however, this mode can cause seawater thermal pollution, has also wasted the heat of power plant.
Typically can all there be the house or factory building for having demand to this partial heat in the vicinity for discharging water, if can be by this part
Heat is used, and both avoids thermal pollution, it is also possible to improve using energy source.
However, have certain distance between the outdoor channel of thermal power plant and sea, to the house or factory building of heat demand also compared with
Near dispersion discharge water, it is therefore desirable in seawater flow process so that different user can nearby obtain heat.
And during seawater discharge is entered into sea, impurity in seawater or the impurity entered in discharge process, such as mud
Sand, algae, fallen leaves, rubbish etc., can all have a strong impact on heat exchange, and heat exchange consumptive material is lost.
The content of the invention
In order to solve the above problems, the invention provides it is a kind of based on seawater as cooling water heat recovery system of thermal power plant
System, with to reducing thermal power plant heat waste, and reduces the thermal pollution of thermal power plant so that the user for being dispersed in seawater discharge channel can
To utilize the used heat of power plant, and in heat transfer process, heat exchange efficiency is high, and consumptive material loss is low.
To achieve these goals, the present invention provides following technical scheme：It is a kind of based on seawater as cooling water thermoelectricity
Factory's heat recovery system includes closed irrigation canals and ditches, and it has lid in tilt flat plate type, the outer surface laying heat-insulation layer of the upper lid, edge
The incline direction of the upper lid, some condensate drainage channels are opened up thereon, each drainage channel is converged in and is placed in
Hermatic door is installed at the guiding gutter on the inclination base of the upper lid, the both ends of the closed irrigation canals and ditches, and the guiding gutter is by hermatic door
Stretch out, water inlet is arranged on the hermatic door of side, and with screen pack, the angle of inclination covered in the tilt flat plate type for 5~
10 degree；
The horizontal lower cover of the irrigation canals and ditches is laid between a ZuUXing PE intermediaries water return duct, each PE intermediaries water return duct of the group
Uniformly arranged in Semi surrounding type, and it is closely knit in gap filling sand, and each PE intermediaries water return duct is provided with circulating pump, and and intermediary
Water storage tank is connected, and pacifies cartridge control valve on connecting pipe；
Exchanged heat with the turbine condenser of thermal power plant as the seawater of cooling water, the seawater after heat exchange is by side hermatic door
Water inlet enters, and is exchanged heat with the intermediary's water in PE intermediaries water return ducts in the closed irrigation canals and ditches；In PE intermediaries water return duct
Upper strata covers one layer of water-permeable brick, and the water-permeable brick inclines laying, and is digging out row positioned at the vicinity of the water-permeable brick for inclining lowest part
Ditch, makes the water-permeable brick for being located at inclination lowest part be connected with row's ditch；The upper lid is consistent with the laying incline direction of water-permeable brick, described
The angle of inclination of water-permeable brick is 7~12 degree；
Corrosion-resistant net is laid on the upper strata of water-permeable brick, and the corrosion-resistant net is single layer of wires net, and twine is in transverse and longitudinal square crossing
Uniform arrangement；Drive roll and driven voller are arranged on the support frame of left and right sides hermatic door, the first driving chain respectively with it is described
The front end of drive roll is connected with the front end of the driven voller, the second driving chain respectively with the rear end of the drive roll and it is described from
The rear end of dynamic roller is connected, so that the drive roll links with the driven voller, the corrosion-resistant net is covered in the first driving chain
Or second on driving chain；One or two in the support frame of the both sides sealed door is provided with outer net perching knife；
Equipped with scraper plate, Pai Gouzhong is equipped with the track advanced for scraper plate to row's ditch；
First water pipe at the non-U-shaped end of the PE intermediaries water return duct, the second water pipe are stretched out by the side hermatic door, should
The first described water pipe connects the water side of source pump evaporator, described the second water pipe connection source pump evaporator
Water intake end, the water side of the condenser of the source pump connects the 3rd water pipe, and the water intake end of condenser connects the 4th water pipe.
Beneficial effect：The invention enables the factory building, the house that are dispersed in power plant seawater discharge channel both sides, can be to generating electricity
The used heat of factory is reclaimed, and reduces the thermal pollution in power plant, also, improves heat exchange efficiency, when extending the use of consumptive material
Between, the condensation water recovery and use that will also be produced by steam, to form the integral type process of heat exchange, purification.
Brief description of the drawings
Fig. 1 is the structural representation of system of the present invention；
Fig. 2 is another structural representation of system of the present invention；
Fig. 3 is corrosion-resistant net drive mechanism schematic diagram；
Fig. 4 is the structured flowchart of the system；
Fig. 5 is the schematic diagram of method described in embodiment.
1. covered on, 2. guiding gutter, 3.PE intermediaries water return duct, 4. water-permeable brick, 5. corrosion-resistant net, 6. drive roll, 7. driven
Roller, 8. the first driving chain, 9. corrosion-resistant net, 10. motor, 11. corrosion-resistant nets, 12. second driving chains.
Specific embodiment
Present embodiment provides a kind of embodiment, so that the present invention is further described.
In one embodiment, as Dalian use in winter based on seawater as cooling water thermal power plant heat recovery system
System, including closed irrigation canals and ditches, it has lid 1 in tilt flat plate type, the outer surface laying heat-insulation layer of the upper lid 1, on described
The incline direction of lid 1, opens up some condensate drainage channels thereon, and each drainage channel is converged in and is placed in the upper lid
Hermatic door is installed at the guiding gutter 2 on 1 inclination base, the both ends of the closed irrigation canals and ditches, and the guiding gutter 2 is stretched out by hermatic door.
In heat transfer process, have a large amount of vapor and be condensed into condensate in upper lid 1, be typically considered a kind of recyclable clean water,
It is that this part water is recycled, upper lid 1 is set to lid 1 in plate inclination, and open up some condensate drainage canals
Road, will condense in the condensate of upper lid 1 by Action of Gravity Field drainage, and converge in the guiding gutter 2 on the inclination base of lid 1, with
So that this partial coagulation water is collected.And lay heat-insulation layer, be in order to ensure that low temperature season does not freeze, such as winter when, the temperature of upper lid 1
Spend it is low, may cause condense water freezing problem occur.The angle of inclination covered in the tilt flat plate type is 5~10 degree, excellent
8 degree are elected as, because the upper purpose being obliquely installed of covering is that, in order to collect condensate, if angle of inclination is too small, condensate is difficult
Flowing, it is impossible to reach guiding gutter so that condensate cannot be collected by drainage；And wide-angle is crossed, cause that condensing water flow velocity is difficult to again
Control, produces overflow phenomena, and excessive angle, also wastes substantial amounts of insulation layer material, and the angular range is by a large amount of
Angle change the preferred range that experiment finds, condensate flow velocity under the scope is ideal, can be adapted to gathering speed, and
Overflow phenomena will not occur, under the angle, being incubated the use of layer material will not cause obvious cost increase.In the embodiment
In, the evaporation and condensation water to seawater is reclaimed, and is a kind of very effective means for obtaining clean water, and this recovery occurs
In heat transfer process, the water of recovery is further promoted, such as, the flow of processed seawater is 10000 ton hours, according to
The evaporation capacity of a ten thousandth, evaporation capacity hourly can reach 1 ton, and the clean water energy collected for a day reaches 24 tons or so, receive
The water of collection is considerable.
In the system, the water inlet for flowing into the seawater after exchanging heat for the first time is arranged on the hermatic door of side, and with filtering
Net, to filter out the thing of the more big parts such as the rubbish that the seawater after heat exchange for the first time falls into during discharge flow.It is described
It is in Semi surrounding type between the ZuUXing PE intermediaries water return duct 3 of horizontal lower cover laying one of irrigation canals and ditches, each PE intermediaries water return duct 3 of the group
Uniform arrangement, and closely knit in gap filling sand, each PE intermediaries water return duct 3 is provided with circulating pump, and with intermediary's water storage tank
Connection, and pacify cartridge control valve on connecting pipe；The intermediary's water circulated in U-shaped PE intermediaries water return duct 3, storage tank
Water can be used the intermediary's water in the water supplement PE intermediaries water return duct 3 in storage tank directly from running water, when needed.
Exchanged heat with the turbine condenser of thermal power plant as the seawater of cooling water, the seawater after heat exchange is entered by side hermatic door
Enter, in the closed irrigation canals and ditches with PE intermediaries water return duct 3 in intermediary's water heat exchange, and the heat is carried out by source pump
Next round exchanges heat, to supply the factory building or house of irrigation canals and ditches both sides, so, even if user disperses, however, because discharge seawater is along row
Put channel and be in flow regime, can supply thermal energy to each dispersion user obtains the purpose of heat to reach nearby, and uses sand
Closely knit U-shaped PE intermediaries water return duct 3, on the one hand plays fixing pipe, and on the other hand, the heat transfer of sand preferably, is adapted to change
Heat is used, if not using sand, once the easily impurity Long-Term Sorption of bonding is on pipe, and will extreme influence heat exchange effect
Rate.
Seawater after exchanging heat for the first time is entered by side hermatic door, with PE intermediaries water return duct 3 in the closed irrigation canals and ditches
In the heat exchange of intermediary water；One layer of water-permeable brick 4 is covered on the upper strata of PE intermediaries water return duct 3, the water-permeable brick 4 inclines laying, and
Row's ditch is being dug out positioned at the vicinity of the water-permeable brick 4 for inclining lowest part, the water-permeable brick 4 for being located at inclination lowest part is connected with row's ditch,
Equipped with scraper plate, Pai Gouzhong is equipped with the track advanced for scraper plate to row's ditch；The upper lid 1 inclines with the laying of water-permeable brick 4
Tilted direction is consistent；Purpose using water-permeable brick 4 is that one layer of filtering is formed between U-shaped PE intermediaries water return duct 3 and water inlet, is made
Water can be exchanged heat and impurity is filtered by water-permeable brick 4 by water-permeable brick 4, and in order to avoid water-permeable brick 4 is bonded by impurity, inclined
Tiltedly set, to cause that impurity receives Action of Gravity Field, by the row's of the sliding down into ditch of water-permeable brick 4, as long as ditch is arranged in periodic cleaning, and make
Drive scraper plate most to arrange ditch with track to be cleared up, it is possible to use the cycle of controller control cleaning and intensity, cleaning effect are preferable,
Extend the use time and clearance time of water-permeable brick 4.The laying angle of inclination of the water-permeable brick is 7~12 degree, preferably 10
Degree, in this scenario, it may be preferred to attach permeable slip layer in water-permeable brick upper surface, Pai Gou is fallen into cause impurity to be more easy to slide,
Water-permeable brick incline laying purpose be in order that impurity slid down onto row's ditch by gravity, due to seawater introduce power plant when,
Filtered once, thus, the obvious seawater relatively in the sea of impurity is few in discharge process, in this case, without causing
Water-permeable brick angle of inclination is excessive；Water-permeable brick angle of inclination is big, and impurity easily falls, but but also causes that seawater is easily attached in row's ditch
Nearly accumulation, the problem for causing heat exchange uneven, and angle too small, impurity is difficult to fall into Pai Gou, by the discovery of a large amount of inclined experimentals,
Above range is ideal, and within this range, impurity is easily slipped to the seawater product near Pai Gouzhong, and the row's of not resulting in ditch
It is poly-, and upper lid 1 is consistent with the laying incline direction of water-permeable brick 4, in order to when there is overflow in the condensate of upper lid, due to
The condensing water temperature for falling can influence heat exchange uniform with ocean temperature difference, thus, above-mentioned restriction is made, even if there is overflow,
Because incline direction is consistent, overflow water typically can be near the row of flowing to ditch, away from water-permeable brick, the influence of reduction heat exchanging.In this reality
Apply in example, the amount of the preferably closed irrigation canals and ditches of seawater introducing is maintained just not to be had water-permeable brick or do not had water-permeable brick, and just do not had second
Driving chain, now heat transfer effect is preferable.
However, it has been found in practice that, only filtered using water-permeable brick 4, found in repeatedly practice, water-permeable brick 4 makes
It is still undesirable with the time, in order to increase the use time of water-permeable brick 4, also for filter effect is improved, increase heat exchange efficiency, saturating
Corrosion-resistant net 5 is laid on the upper strata of water brick 4, and the corrosion-resistant net 5 is single layer of wires net, it is of course also possible to be multilayer steel wire, net
Silk is uniformly arranged in transverse and longitudinal square crossing；Drive roll 6 and driven voller 7 are arranged on the support frame of left and right sides hermatic door, and first
Driving chain 8 is connected with the front end of the drive roll 6 and the front end of the driven voller 7 respectively, the second driving chain 12 respectively with
The rear end of the drive roll 6 is connected with the rear end of the driven voller 7, so that the drive roll 6 links with the driven voller 7, institute
Corrosion-resistant net 5 is stated to be covered on the first driving chain 8 or the second driving chain 12；With this so that the circulation transmission of corrosion-resistant net 5,
Impurity is allowed to be bonded on steel wire, and in order to increase the filter effect and use time of steel wire, in both sides sealing door
One or two in support frame is provided with outer net perching knife, to root out the impurity of outer online bonding, the perching knife can coordinate with
Support stretches out, and can strike off outer net sticky object, has splicing groove under it, catches adhesive, with periodic cleaning, thus, the biography
The corrosion-resistant net of motivation structure can stretch out hermatic door, i.e. perching knife, and (perching knife is located at system confined space on the hermatic door in outside
Outside, such as Fig. 1), with the sticky object of easy cleaning splicing groove, and in order to consider sealing, the perching knife can be placed in inner side
On hermatic door (perching knife is located within system confined space, such as Fig. 2).
First water pipe at the non-U-shaped end of the PE intermediaries water return duct 3, the second water pipe are stretched out by the side hermatic door,
The first described water pipe connects the water side of source pump evaporator, described the second water pipe connection source pump evaporator
Water intake end, the water side of the condenser of the source pump connects the 3rd water pipe, and the water intake end of condenser connects the 4th water pipe.
In the present embodiment, as object of reference, into evaporator is high-temperature water to the evaporator with source pump, i.e., the second pipe
It is high-temperature conduit, have evaporator outflow is water at low temperature, i.e. the first pipe is low temperature water pipe；Similarly, with the condenser of source pump
Be object of reference, into condenser is water at low temperature, i.e., the 4th pipe is low temperature water pipe, reserve condenser is high-temperature water, i.e., the 3rd
Pipe is high-temperature conduit.Heat after condenser exchanges heat the seawater after first time heat exchange with intermediary's water again is exported, to supply factory
The heating water heat exchange of room and house, so as to the waste heat of power plant be reclaimed.
In one embodiment, all equipment, components with contact with sea water etc., are corrosion resistances.
As a kind of embodiment, it is a kind of based on above-mentioned seawater as thermal power plant's heat recovery system of cooling water recovery side
Method, comprises the following steps：
S1. outdoor channel is excavated along thermal power plant to sea, including seawater introduces channel and seawater discharge channel；
S2. seawater is based on as cooling water in selector distributing canal section installation above-described embodiment in the seawater discharge channel
Thermal power plant's heat recovery system, and by seawater introduce channel introduce as cooling water seawater, by itself and turbine condenser
Exchanged heat with the steam that liquefies, the seawater (about 18 degree) after first time heat exchange is drained to sea by the heat exchange to exchange heat for the first time
Water discharges channel；
After the intermediary's water (about 10 degree) flowed in S3.PE intermediaries water return duct and the first time heat exchange for entering closed irrigation canals and ditches
Seawater carries out second heat exchange, improves the temperature (about 15 degree) of intermediary's water, and intermediary's water of the intensification passes through source pump again
Recuperated cycle is formed with heat demand device；
In second heat transfer process, the evaporation vapour of the seawater after exchanging heat for the first time is condensed in the inclination of closed irrigation canals and ditches
Upper lid, and enter guiding gutter with collection and purification water along condensate drainage channel, corrosion-resistant net circulation transmission is filtered, and by outer net
Perching knife is scalped in transmission process and is bonded in corrosion-resistant online impurity, and the impurity in row's ditch is periodically struck off by scraper plate.
The above, the protection domain of only the invention preferably specific embodiment, but the invention is not
Be confined to this, any one skilled in the art in the technical scope that the invention is disclosed, according to the present invention
The technical scheme of creation and its inventive concept are subject to equivalent or change, should all cover the invention protection domain it
It is interior.
Claims (1)
1. it is a kind of based on seawater as cooling water thermal power plant's heat recovery system, it is characterised in that including closed irrigation canals and ditches, its tool
Heat-insulation layer is laid in the outer surface for having lid (1) in tilt flat plate type, the upper lid (1), along the incline direction of the upper lid (1),
Some condensate drainage channels are opened up thereon, and each drainage channel converges in the inclination base for being placed in the upper lid (1)
Guiding gutter (2), the both ends of the closed irrigation canals and ditches install hermatic door, and the guiding gutter (2) is stretched out by hermatic door, water inlet peace
On the hermatic door of side, and with screen pack, the angle of inclination that (1) is covered in the tilt flat plate type is 5~10 degree；
The horizontal lower cover of the irrigation canals and ditches lays ZuUXing PE intermediaries water return duct (3), each PE intermediaries water return duct (3) of the group
Between uniformly arranged in Semi surrounding type, and gap filling sand it is closely knit, each PE intermediaries water return duct (3) is provided with circulating pump, and
Connected with intermediary water storage tank, and pacify cartridge control valve on connecting pipe；
Exchanged heat with the turbine condenser of thermal power plant as the seawater of cooling water, the seawater after heat exchange is entered by side hermatic door,
Exchanged heat with the intermediary's water in PE intermediaries water return duct (3) in the closed irrigation canals and ditches；Covered on the upper strata of PE intermediaries water return duct (3)
One layer of water-permeable brick (4) of lid, the water-permeable brick (4) inclines laying, and is dug out positioned at the vicinity of the water-permeable brick (4) for inclining lowest part
Row's ditch, makes the water-permeable brick (4) for being located at inclination lowest part be connected with row's ditch；The upper lid (1) and the laying inclination side of water-permeable brick (4)
To consistent, the angle of inclination of the water-permeable brick is 7~12 degree；
Corrosion-resistant net (5) is laid on the upper strata of water-permeable brick (4), and the corrosion-resistant net (5) is single layer of wires net, and twine is vertical in transverse and longitudinal
Intersect uniform arrangement；Drive roll (6) and driven voller (7) on the support frame of left and right sides hermatic door, the first driving chain
(8) be connected with the front end of the drive roll (6) and the front end of the driven voller (7) respectively, the second driving chain (12) respectively with
The rear end of the drive roll (6) is connected with the rear end of the driven voller (7), so that the drive roll (6) and the driven voller (7)
Linkage, the corrosion-resistant net (5) is covered on the first driving chain (8) or the second driving chain (12)；The both sides sealed door
Support frame in one or two outer net perching knife is installed；
Equipped with scraper plate, Pai Gouzhong is equipped with the track advanced for scraper plate to row's ditch；
First water pipe at the non-U-shaped end of PE intermediaries water return duct (3), the second water pipe are stretched out by the side hermatic door, should
The first described water pipe connects the water side of source pump evaporator, described the second water pipe connection source pump evaporator
Water intake end, the water side of the condenser of the source pump connects the 3rd water pipe, and the water intake end of condenser connects the 4th water pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710005356.8A CN106930790B (en) | 2017-01-04 | 2017-01-04 | Thermal power plant's heat recovery system based on seawater as cooling water |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710005356.8A CN106930790B (en) | 2017-01-04 | 2017-01-04 | Thermal power plant's heat recovery system based on seawater as cooling water |
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| CN106930790A true CN106930790A (en) | 2017-07-07 |
| CN106930790B CN106930790B (en) | 2019-01-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108613563A (en) * | 2018-04-19 | 2018-10-02 | 大连葆光节能空调设备厂 | It is a kind of to solve solution of the plant condenser cooling draining to eco-environmental impact |
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| KR101479181B1 (en) * | 2014-04-30 | 2015-01-05 | 이중용 | Hybrid type cooling water cooling apparatus for power plant and cooling method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108613563A (en) * | 2018-04-19 | 2018-10-02 | 大连葆光节能空调设备厂 | It is a kind of to solve solution of the plant condenser cooling draining to eco-environmental impact |
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| CN106930790B (en) | 2019-01-15 |
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