CN110494712A - The air-cooled type industrial steam condensing unit of miniature tube - Google Patents
The air-cooled type industrial steam condensing unit of miniature tube Download PDFInfo
- Publication number
- CN110494712A CN110494712A CN201780051189.9A CN201780051189A CN110494712A CN 110494712 A CN110494712 A CN 110494712A CN 201780051189 A CN201780051189 A CN 201780051189A CN 110494712 A CN110494712 A CN 110494712A
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- Prior art keywords
- condensing unit
- steam
- pipe
- primary
- air
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28B—STEAM OR VAPOUR CONDENSERS
- F28B1/00—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser
- F28B1/06—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser using air or other gas as the cooling medium
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
- F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
- F28F1/32—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means having portions engaging further tubular elements
Abstract
The air-cooled type industrial steam condensing unit that Large Field is set up, each unit has 10 heat transfer tube bundles, they are with five pairs of arrangement forming V-shapes, there are four primary heat exchanger and four secondary heat exchangers for each heat transfer tube bundle tool, wherein, each secondary heat exchanger and single primary heat exchanger match.Four primary condensing units are arranged to make pipe level, and the inlet steam manifold at pipe one end is parallel to the transverse axis of tube bank perpendicular to primary condensing unit pipe.Steam enters small inlet steam manifold from below.The cross sectional dimensions of pipe is 200mm wide, cross-sectional height is less than 10mm, fin height 10mm and is arranged as 9 to 12 fins of per inch.
Description
Technical field
The present invention relates to the air-cooled type industrial steam condensing units that Large Field is set up.
Background technique
The wing used in the air-cooled type industrial steam condensing unit (" ACC ") of most of Large Fields erection at present
Piece pipe is flat pipe, wherein length about 11m, and width (also referred to as " air stroke length ") is 200mm, leading edge and rear in half
Circle, external height (perpendicular to air stroke length) are 18.7mm.Pipe thickness is 1.35mm.By fin brazed to each pipe
Two flattened sides.Fin height is usually 18.5mm, and 11 fins are provided between per inch.The wavy figure of fin surface
The rigidity of fin is transmitted to enhance heat and facilitated to case.Normal pitch between Guan Yuguan is with the distance of center to center
57.2mm.Pipe itself constitutes the about one third of cross-sectional area (perpendicular to air-flow direction)；And fin composition is transversal
Nearly 2/3rds of face area.There is the small gap of 1.5mm between adjacent fin tip.For the environmental condition of summer, pass through
The maximum vapor (steam) velocity of pipe usually may be up to 28mps, be more typically 23 to 25mps.By these pipes and fin Combination Design shape
At single A-frame have been based on length, spacing of fin, fin height and the shape of pipe and air stroke length obtains
Optimization.Finned tube type is assembled into heat transfer tube bundle, usual each heat transfer tube bundle has 39 pipe fittings, and has 10-14
A tube bank is configured to two tube banks, and each fan, which has, restrains the single A-frame collectively formed by described two.Fan is logical
It is frequently located in the lower section of A-frame, for forcing air through tube bank.The whole design of pipe and fin and the combination of pipe and fin
Air pressure drop also optimized, it is empty with the transfer for matching large size (diameter the be 36 feet) fan run under 200 to 250 horsepowers
The ability of gas.Since the concept for introducing single elliptical tube before more than 20 years, being arranged in for such optimization so far is many different
It is still remained relatively unchanged in manufacturer.
The above-mentioned typical ACC in A-frame includes the first order or the tube bank of " primary " condensing unit and the second level or " secondary
Grade " tube bank.About 80% to 90% heat transfer tube bundle belongs to the first order or primary condensing unit tube bank (bundle).Steam into
Enter the top of primary condensing unit tube bank, and condensate and some steam then leave bottom.First order configuration is that have the thermal efficiency
's；However, it does not provide the method for removing non-condensable gas.In order to which non-condensable gas is purged through first order pipe
Beam, 10% to 20% heat transfer tube bundle are configured as the second level or secondary condensing unit, are generally spread in primary condensation
In device, it is used for from lower part condensate manifold extract steam.In this arrangement, when steam and non-condensable gas are inhaled into time
When the bottom of grade condensing unit, steam and non-condensable gas pass through first order condensing unit.When admixture of gas travels upwardly
When by secondary condensing unit, remaining steam condensate is condensed into non-condensable gas.The top of secondary condensing unit connects
To vacuum manifold, the vacuum manifold is for the non-condensable gas in removing system.
Such as it in document US2015/0204611 and US2015/0330709, has been disclosed about standard prior
ACC device modification., application illustrates finned tube that is identical but substantially shortening, finned tube is then arranged in a series of small for these
Type A-frame, usually each fan has 5 A-frames.Part logic is to reduce steam drop, under the conditions of this is to summer
Total capacity influence very little, but under winter conditions total capacity influence it is bigger.Another part logic just will in factory
Overhead vapor manifold channels are welded to each tube bank and transport them together, so as to save expensive site welding work
Make.Steam manifold is connected in factory and is to reduce the length of pipe with the net effect for restraining this arrangement transported together, with
Just manifold is contained in the cube shipping container of calibrated altitude.Due to shortening pipe, the total amount of surface area is reduced,
The relative capacity of the single A-frame design of standard similar for overall dimensions then reduces about 3% under the conditions of summer.
Summary of the invention
Invention proposed in this paper are as follows: 1) designed for the New pipe of heat exchanger system, including but not limited to Large Field
The air-cooled type industrial steam condensing unit of erection；And 2) the air-cooled type set up for the Large Field in power plant etc.
The new design of industrial steam condensing unit；It can both reduce while the thermal capacity for dramatically increasing ACC in certain configurations
Used in material.Various aspects of the invention and/or embodiment are as described below:
According to the preferred embodiment of pipe design invention, the cross sectional dimensions of pipe is 200mm wide (air stroke length), similar
The prior art, but cross-sectional height (perpendicular to air stroke length) is less than 10mm, preferably 4-10mm, more preferably 5.0-
9mm, even more preferably 5.2-7mm, most preferably 6.0mm, (and outer tube width), and the height of fin is 8-12mm,
The height of fin is more preferably 10mm, and per inch is arranged with 8 to 12 fins, preferably 11 fins.According to another excellent
Select embodiment, the height of practical fin can be 16-22mm, preferably 18.5mm, and fin across two adjacent tubes it
Between interval, effectively make every side each pipe can be used 8-11mm fin.
The viewpoint of current this field prevalence is to manufacture the pipe with cross section as big as possible, to accommodate by large size
The a large amount of steam of power plant output, and just because of biggish pipe makes cost decrease, and manufacture the lesser (phase in cross section
With air stroke length but height it is significantly smaller) viewpoint of the current this field prevalence of Guan Zeyu is directly opposite.Although this
The cost of arrangement is apparently higher than the pipe fitting arrangement of the prior art, however inventor is it was unexpectedly observed that pipe with the prior art
It compares, and the raising of the efficiency of a lower height of pipe (in most preferred embodiment, the pipe for the prior art that compares, improved efficiency
More than the increase for 30%) being more than compensating cost.The Large Field that this novel pipe design can be used for the prior art is set up
Air-cooled type industrial steam condensing unit in (for example, as described in the background section) or it can be described below
New ACC design be used in combination.
For the air-cooled type industrial steam condensing unit that Large Field is set up newly designs, a master of the invention
It is characterized in the multiple primary and secondary condensing units of new design arrangement, to reduce the cost of steam manifold while increase significantly
Thermal capacity, to allow readily vanning transport and the smallest site welding.
According to one embodiment of present invention, which is characterized in that 10 heat transfer tube bundles arrangement of each unit
For five to " V ' s " (the inverted construction compared with the ACC device in standard prior).According to alternate embodiment, tube bank can be with
It is arranged to A-frame arrangement, but such embodiment needs additional pipe-line system and therefore will increase cost.
In preferred arrangement, there are four primary heat exchangers and four secondary heat exchanges for each heat transfer tube bundle tool
Device, wherein each secondary heat exchanger and single primary heat exchanger are matched.According to alternative embodiment, each core, heat exchanger
One secondary heat exchanger is only provided；But match each secondary heat exchanger with single primary heat exchanger, it is cold with making
It is solidifying to install pipes/collector the advantages of minimizing.According to other alternate embodiment, each core, heat exchanger can provide three or
Even two or five or more heat exchangers then carry out the tradeoff of capacity and cost.
According to preferred embodiment, arrange that four primary condensing units make pipe be horizontal, and the entrance at one end of pipe
The transverse axis parallel alignment of steam manifold and tube bank.This arrangement allows steam to enter small inlet steam manifold from below.
According to alternate embodiment, steam can be introduced from above into, but the embodiment needs more pipe-line systems.
According to preferred embodiment, the vertical width of each tube bank is 91 inches (2.3m) to 101 inches (2.57m).
Preferred tube bank length is 41 feet to 43 feet, but can provide various other shorter length, including 38
Foot.According to one embodiment, two small secondary condensing units can be attached to primary condensing unit at the scene, generate very
Low additional site welding cost.In the case where required core length is longer than transport vanning length, which especially has
With.
According to preferred embodiment, for having there are four the tube bank of primary condensing unit, each horizontal tube bundle length has
The length of tube of 2.2m to 2.8m.For each tube bank tool, there are five the tube bank of primary condensing unit, each horizontal tube bundle length tools
There are the length of tube of 1.75m to 2.25m, and preferably 2.0m.Steam manifold and outlet manifold have 0.065m to 0.10m,
The preferably preferable width of 0.075m (perpendicular to the vertical length of manifold).Each primary condensing unit is preferably directly joined to
Secondary condensing unit with finned tube, the finned tube have the longitudinal axis with the transverse axis parallel alignment of tube bank, match
It is set to from bottom reception steam, and is preferably sized to the surface area 10% to 20% with its corresponding primary condensing unit
Surface area, and the size of primary condensing unit be 2.3m × 2.4m in the case where, secondary condensing unit be, for example, 0.20m extremely
0.45m wide, it is therefore preferable to 0.31m wide.
According to preferred embodiment, heat transfer tube bundle passes through by forming as follows: small secondary condensing unit
(10-20% of the surface area of corresponding primary coil) has the pipe with the transverse axis parallel alignment of tube bank, followed by band
There is the full-scale primary condensing unit of horizontal tube (the longitudinal axis parallel alignment with tube bank), it is cold in primary condensing unit and secondary
There is condensate collector, the condensate collector is connected to going out for primary condensing unit pipe along its side between solidifying device
Mouthful, and it is connected to the entrance of secondary condensing unit in its bottom, for remaining steam and non-condensable gas is directly defeated
It is sent in secondary condensing unit.Steam inlet manifold is located at the distal end of the first primary condensing unit.Second primary condensing unit and
Second subprime condensing unit is obtained by the first condensing unit mirror image, to complete the first half of heat transfer tube bundle.Heat exchange
The latter half of device is obtained by first half mirror image.
Then tube bank is matched, preferably with V-frame frame.This takes two groups of four steam inlets to two individual cells
Domain.This four entrances may be coupled to the single steam vertical tube from following big jet chimney, and suitable by one turn of four type
Orchestration (one-to-four adapter) links together, and does not need to weld steam manifold in the length of tube bank.Institute as above
It states, A-frame can be used, but cost efficiency is lower, because traditional A-frame ACC structural requirement jet chimney is placed
Above coil/tube bank rather than lower section.
Steam is transported to heat transfer tube bundle by jet chimney.Steam is transported to heat exchanger from jet chimney by standpipe
Then entrance delivers a vapor to steam inlet manifold.Steam inlet manifold delivers a vapor to the level of primary condensing unit
Guide pipe.When steam crosses the pipe of primary condensing unit, most of steam is condensed into liquid water.The pipe of primary condensing unit is whole
Condensate collector is terminated in, condensate and remaining steam (including non-condensable gas) are received.The bottom of condensate collector has
One " foot " part, it extends in the bottom of secondary condensing unit and opens up into the bottom of secondary condensing unit.Collecting condensation
In the bottom of condensate collector, and it is transported to condensate collection pipe there.Meanwhile remaining steam, including not condensible gas
Body is drawn upwardly out from condensate collector by secondary condensing unit.When the condensation of remaining steam, condensate passes through secondary cold
Solidifying device backs downward into the bottom of condensate collector, and enters condensate collection pipe.Non-condensable gas passes through not condensable receipts
Collector leaves secondary condensing unit.
As discussed, this new ACC design can be with cross-sectional configuration and area (200mm with the prior art
× 18.7mm) pipe be used together, the increase of efficiency is about 5% in this case.Alternatively, this new ACC design can
To be used together with the pipe with new design (200mm × be less than 10mm) as described herein, wherein with being constructed with standard pipe
Prior art A-frame is compared, and efficiency improves about 22%.
According to another alternate embodiment, new ACC design of the invention can deviate fin, 100mm × 5mm extremely with having
The pipe of 100mm × 7mm is used together.Compared with the standard ACC construction with standard pipe, which generates 17.5% total appearance
Amount increases, the reduction of pipe and fin cost about 40%, while tube bank weight being supported to reduce.The weight restrained according to this embodiment
Also it will be about the 60% of prior art tube bank, therefore be easier to support in new ACC structure.
According to another embodiment, new ACC of the invention design can make together with the pipe of 200mm × 5mm to 200mm × 7mm
With the pipe has " arrow " type fin, and wherein 9.8 fins are arranged in per inch.Phase is constructed with the standard ACC with standard pipe
Than embodiment generation is more than 30% total capacity increase.
According to another embodiment, new ACC of the invention design can make together with the pipe of 120mm × 5mm to 120mm × 7mm
With the pipe has " arrow " type fin, and wherein 9.8 fins are arranged in per inch.Phase is constructed with the standard ACC with standard pipe
Than embodiment generation is more than 17% total capacity increase.According to another embodiment, new ACC design of the invention can be with
The pipe of 140mm × 5mm to 140mm × 7mm is used together, which has " arrow " type fin, and wherein 9.8 wings are arranged in per inch
Piece.Compared with the standard ACC construction with standard pipe, embodiment generation is more than 23% total capacity increase.Although 120mm and
The capacity increase of 140mm construction is big not as 200mm construction, but compared with 200mm design, and 120mm and 140mm construction are reduced
Material and weight.
For the disclosure of arrowhead-shaped fin structure discussed above, on 2 6th, 2017 U. S. applications submitted
The disclosure of No.15/425,454 is incorporated herein in its entirety.
According to another embodiment, new ACC design of the invention can be used together with the pipe with " louvered " fin,
It has the performance roughly the same with offset fin, and is easier to obtain and manufacture.
Using the prior art, pipe heat-exchanger fin and pipe are brazed together one at a time.According to the present invention, it utilizes
Multiple finned tubes can be brazed into single component by these lesser tube banks and lesser pipe, to cut down manufacturing cost, be eliminated
The air gap between the finned tube of performance is influenced, and provides firm structure between adjacent tube wall to prevent them from collapsing under vacuum
It collapses.In addition, significant surface area is obtained for fin and pipe with arrangement of the invention, especially because for conducting heat
The gross area limited by container door size.Since length of tube or tube bank width will not be due to the steamings of other designs
Vapour manifold and reduce, it is this arrangement provide than any other design more effectively every shipping container dimension cells heat-exchange surface
Product.
In short, compared with the equivalent dimension device of the prior art, steam condensation capacity of the invention and cost reduce total
Gain is up to 33%, and the fan power of each fan is constant.For multiple-unit ACC, it is possible to reduce the quantity of fan, because each
Unit has higher capacity, and needs less unit to execute steam condensation work, and total fan power can reduce super
Cross 25%.
In addition, ACC design of the invention can be more easily arranged, less overall space is needed in power plant.
Therefore, according to one embodiment of present invention, a kind of Large Field for connecting industrial steam production facility is provided
The air-cooled type industrial steam condensing unit of erection, comprising: multipair heat transfer tube bundle, each pair of heat transfer tube bundle are arranged to
V-shaped configuration, and each heat transfer tube bundle has longitudinal axis and the transverse axis with longitudinal axis orthogonal, each heat exchange
Device tube bank include multiple steam inlet manifolds, multiple primary condensing unit parts, multiple outlet condensate collectors and at least one
Secondary condensing unit part；Each primary condensing unit includes multiple finned tubes, and the longitudinal axis of each finned tube is parallel to phase
Answer the longitudinal axis of heat transfer tube bundle；Each secondary condensing unit includes multiple finned tubes, the longitudinal axis of each finned tube
It is parallel to the transverse axis of respective heat exchanger；The longitudinal axis of each steam inlet manifold is parallel to respective heat exchanger
Transverse axis, each steam inlet manifold configuration is to receive the steam from steam distributing manifold, and steam is distributed to phase
The first end of the multiple finned tube in primary condensing unit is answered, which is located under the heat-exchange tube bundle
Side；The longitudinal axis of each outlet condensate collector is parallel to the transverse axis of corresponding heat exchanger, and in the first side
On be connected to corresponding primary condensing unit the multiple finned tube second end, therefrom to collect condensate, uncooled
Steam and non-condensable gas, each outlet condensate collector are connected at least one described secondary condensing unit in bottom end
Partial bottom end, each outlet condensate collector are also connected to condensate collection pipe, and each secondary in bottom end
Condenser portion is connected to not condensable collecting pipe on top.
According to one embodiment of present invention, it is cold to additionally provide a kind of air-cooled type industrial steam that Large Field is set up
Device is coagulated, primary condensing unit and secondary condensing unit including identical quantity, each secondary condensing unit and single primary are cold
Solidifying device pairing.
According to one embodiment of present invention, it is cold to additionally provide a kind of air-cooled type industrial steam that Large Field is set up
Solidifying device, wherein each heat transfer tube bundle includes four primary condensing units and four secondary condensing units, wherein relative to
Adjacent primary condensing unit/secondary condensing unit pair, each primary condensing unit/secondary condensing unit is to from left to right
Direction be opposite so that first in the heat transfer tube bundle pair steam inlet manifold is directly adjacent to each other, and same
Second pair of steam inlet manifold in one heat transfer tube bundle is directly adjacent to each other.
It is cold that a kind of air-cooled type industrial steam that Large Field is set up is additionally provided according to one embodiment of present invention
Solidifying device, wherein in a pair of of heat transfer tube bundle, the bottom end and second of the steam inlet manifold of the first heat-exchange tube bundle
The bottom end of the steam inlet manifold of heat transfer tube bundle is adjacent.
It is cold that a kind of air-cooled type industrial steam that Large Field is set up is additionally provided according to one embodiment of present invention
Solidifying device, wherein the bottom of described two adjacent steam inlet manifolds of the first heat-exchange tube bundle in a pair of of heat transfer tube bundle
The bottom end of two adjacent steam inlet manifolds of end and the second heat-exchange tube bundle is connected to one turn of four type steam manifold adapter
First end, and wherein the second end of one turn of four type steam manifold adapter is connected to steam supply manifold.
According to one embodiment of present invention, it is cold to additionally provide a kind of air-cooled type industrial steam that Large Field is set up
Solidifying device, wherein the length of the multiple finned tube in the primary condensing unit is 2.0m to 2.8m, cross-sectional width is
200mm, cross-sectional height are 4-10 millimeters.
According to one embodiment of present invention, it is cold to additionally provide a kind of air-cooled type industrial steam that Large Field is set up
Solidifying device, wherein the cross-sectional height of the pipe in primary condensing unit is 5.2-7mm.
According to one embodiment of present invention, it is cold to additionally provide a kind of air-cooled type industrial steam that Large Field is set up
Solidifying device, wherein the cross-sectional height of the pipe in primary condensing unit is 5.9mm.
According to one embodiment of present invention, it is cold to additionally provide a kind of air-cooled type industrial steam that Large Field is set up
Solidifying device, wherein multiple finned tubes in the primary condensing unit have the fin for the flattened side for being connected to the pipe, institute
The height for stating fin is 10mm, and per inch is arranged at intervals with 9 to 12 fins.
According to one embodiment of present invention, it is cold to additionally provide a kind of air-cooled type industrial steam that Large Field is set up
Solidifying device, wherein the multiple finned tube in the primary condensing unit has the wing for the flattened side for being connected to the pipe
Piece, the fin height are 18mm to 20mm, across the space between adjacent tubes and contact adjacent tubes, per inch is arranged at intervals with
9 to 12 fins.
According to an embodiment of the invention, additionally providing a kind of air-cooled type industrial steam condensation dress that Large Field is set up
It sets, wherein the surface area of all secondary condensing units in heat-exchange tube bundle, all primary in Zhan Tongyi heat-exchange tube bundle are cold
The 10-20% of the surface area of solidifying device.
According to one embodiment of present invention, it is cold to additionally provide a kind of air-cooled type industrial steam that Large Field is set up
Solidifying device, two of them primary condensing unit/secondary condensing unit is to adjacent to each other, the secondary condensing unit of two centerings phase each other
Neighbour, described two secondary condensing units are combined into single secondary condensing unit.
Detailed description of the invention
Figure 1A is the heat exchange section for the air-cooled type industrial steam condensing unit that the Large Field of the prior art is set up
Perspective view；
Figure 1B is the heat exchange section for the air-cooled type industrial steam condensing unit that the Large Field of the prior art is set up
Exploded close up view, show direction of the pipe relative to steam distributing manifold；
Fig. 2A is the air-cooled type industrial steam condensing unit that Large Field according to a first embodiment of the present invention is set up
The perspective view of the heat exchange section of (" ACC ")；
Fig. 2 B is the exploded close up view of Fig. 2A shown device, shows the direction of the pipe in primary condensing unit；
Fig. 3 is the side view of the heat exchange section of ACC according to the preferred embodiment of the invention；
Fig. 4 be it is according to an embodiment of the invention, in the steam standpipe of the bottom of the heat exchange section of ACC and corresponding
Header between connection close-up side view；
Fig. 5 is embodiment according to the present invention, steam standpipe/transition element/steam manifold component end for ACC
View；
Fig. 6 is the perspective cross-sectional view of prior art ACC pipe and fin；
Fig. 7 is the perspective view of the first embodiment of miniature tube and fin according to the present invention；
Fig. 8 is the air-cooled type industrial steam condensing unit that Large Field according to an embodiment of the invention is set up
Side view, wherein V-arrangement heat-exchange tube bundle is to having primary condensing unit as shown in Figure 2 A and secondary condensing unit arrangement；
Fig. 9 is the end-view for the air-cooled type industrial steam condensing unit that Large Field shown in fig. 8 is set up；
Figure 10 is the top view for the air-cooled type industrial steam condensing unit that Large Field shown in fig. 8 is set up；
Figure 11 is the perspective view of primary condensing unit finned-tube bundle according to an embodiment of the invention；
Figure 12 is the perspective view photo of the primary condensing unit finned-tube bundle presented in Figure 11.
Specific embodiment
V-arrangement ACC with horizontal primary condensing unit and vertical secondary condensing unit
Referring to Fig. 2A, 2B and 3, tube bank can be constructed to 2 by connecting two tube banks 4 with V configuration.It is each tube bank 4 by
Four primary condensing units 6 and four secondary condensing units 8 are constituted, each secondary condensing unit 8 and single primary condensing unit 6
Pairing.Pipe 10 in primary condensing unit 6 is arranged to make the level of pipe 10, and the inlet steam manifold 12 at one end of pipe is parallel right
The transverse axis of Qi Yu tube bank.This arrangement allows steam to enter small inlet steam manifold 12 from below.Secondary condensing unit 8
In pipe 14 be equally parallel to tube bank transverse axis alignment.The preferred vertical height of each tube bank be 91 inches (2.3 meters) extremely
101 inches (2.57 meters), preferred length of restraining is 38 feet to 45 feet.
According to preferred embodiment, along the linear measure longimetry of tube bank, each primary condensing unit 6 accounts for the 2.6m of length；Each
Steam manifold 12 and condensate outlet collector 16 account for 0.3 meter of length, and each secondary tube bank 8 accounts for 0.4 meter of length.No matter such as
What, each secondary tube bank 8 can account for the 10% to 20% of the finned tube surface area of entire heat transfer tube bundle.
With continued reference to Fig. 2A and 3, preferred heat transfer tube bundle according to the present invention is by one end to the other end by following structure
At: the secondary condensing unit 8 with pipe 14, the longitudinal axis of pipe 14 is parallel to the transverse axis orientation of tube bank, followed by closing on
Secondary condensing unit 8 and by the steam from primary condensing unit 6 be communicates directly to the outlet in secondary condensing unit 8 condensation
Object collector 16 (about 3 inches), followed by the full-scale primary condensing unit 6 with horizontal tube 10.
According to preferred embodiment, each condensate collector 16 has a foot 28 in its bottom, which prolongs thereunder
It stretches and opens up into its corresponding secondary condensing unit 8.(it is primary that every side about 0.20 to 0.25m) is located at first to steam inlet manifold 12
The distal end of condensing unit 6.Second group of primary and secondary condensing unit is obtained by first group of mirror image, thus before completing heat exchanger
Half part.The latter half of heat exchanger is obtained by first half mirror image.The adjacent secondary as shown in the center Fig. 2A and Fig. 3 is cold
Solidifying device can be combined into single secondary condensing unit.Condensate is flowed into the condensate of the bottom collection of condensate collector 16 to receive
Collector 30.Non-condensable gas is drawn into not condensable collecting pipe 32 from the top of secondary condensing unit 8.
Then tube bank is paired together, preferably with the pairing of V-frame frame.As illustrated in figs. 2 a and 3, this to arrange two
Four steam inlets 18 of group take two single subdistricts domain to.This four entrances may be coupled to single steam standpipe 20, and pass through
One turn of four type adapter 24 links together, wherein single steam standpipe 20 is derived from big jet chimney 22, referring to fig. 4 with 5.No
It needs to weld steam manifold in the length of tube bank.A-frame can be used, but cost efficiency is lower.
Fig. 8-10 shows the air-cooled type that representative Large Field according to an embodiment of the invention is set up
Industrial steam condensing unit, with V-arrangement heat-exchange tube bundle pair, primary condensation of the heat-exchange tube bundle to having as shown in Figure 2 A
Device and secondary condensing unit arrangement.Device shown in Fig. 8-10 is 36 units (6 unit × 6 units) ACC, each
There are five tube bank pair or the most preferred embodiments in " street " for unit tool, but the present invention can make together with the ACC of arbitrary dimension
With, and each unit has any number of tube bank pair or street.
With US publication application No.US2013/0312932, US publication application No.2015/0204611 and
It designs and compares disclosed in US publication application No.2015/0330709, the above embodiment of the present invention increases 13%
Thermal capacity.
Compared with existing standard A-frame technology, (it is used with standard cross-section face shape the above embodiment of the present invention
The primary tube of shape and area (200mm × 18.7mm), see, for example, Fig. 6 (except length of tube)) by thermal capacity raising 5%, and make
Similar degree is greatly reduced in installation cost.
According to most preferred embodiment, above-mentioned new ACC design can be used in combination with primary condensing unit pipe, primary cold
The cross sectional dimensions of solidifying device pipe is 200mm wide (air stroke length), and cross-sectional height (perpendicular to air stroke length) is small
In 10 millimeters, preferably 4-10 millimeters, more preferably 5.0-9 millimeters, even more preferably 5.2-7 millimeters, most preferably 6.0 millimeters
High (thickness of pipe is 0.8 millimeter, and bore is 4.4 millimeters), fin height is 8-12 millimeters, and preferably 10 millimeters, per inch is arranged
There are 8-12 fin, preferably 11 fins (Fig. 7).Figure 11 and 12 shows according to an embodiment of the invention, is assembled into
The multiple primary condensing unit pipes and fin of primary condensing unit tube bank.According to the preferred embodiment, for constant fan function
The individual unit of rate operation, adds additional 17% capacity, so that designing phase with the prior art A-frame with standard pipe
Than capacity increases 30% in total.
According to another preferred embodiment, the height of practical fin can be 16-22mm, and preferably height is 18.5mm, and across
Space between more two adjacent tubes effectively makes each pipe of every side that the fin of 8-11mm can be used.
The present invention is not limited to the description of fin type and size above.The case where not departing from the scope of the invention
Under, the pipe of invention as described herein can be used together with any kind of fin.
Claims (12)
1. a kind of air-cooled type industrial steam condensing unit that the Large Field for connecting industrial steam production facility is set up, packet
It includes:
Multipair heat transfer tube bundle, each pair of heat transfer tube bundle is arranged to V-shaped configuration, and each heat transfer tube bundle is with vertical
To axis and with the transverse axis of longitudinal axis orthogonal,
Each heat transfer tube bundle includes multiple steam inlet manifolds, multiple primary condensing unit parts, multiple outlet condensates
Collector and at least one secondary condensing unit part；
Each primary condensing unit includes multiple finned tubes, and the longitudinal axis of each finned tube is parallel to respective heat exchanger tube bank
Longitudinal axis；
Each secondary condensing unit includes multiple finned tubes, and the longitudinal axis of each finned tube is parallel to the cross of respective heat exchanger
To axis；
The longitudinal axis of each steam inlet manifold is parallel to the transverse axis of respective heat exchanger, each steam inlet discrimination
Pipe is configured to receive the steam from steam distributing manifold, and steam is distributed to the multiple in respective primary condensing unit
The first end of finned tube, the steam distributing manifold are located at below the heat-exchange tube bundle；
The longitudinal axis of each outlet condensate collector is parallel to the transverse axis of corresponding heat exchanger, and in the first side
On be connected to corresponding primary condensing unit the multiple finned tube second end, therefrom to collect condensate, uncooled
Steam and non-condensable gas,
Each outlet condensate collector is connected to the bottom end of at least one secondary condensing unit part in bottom end, each
The outlet condensate collector is also connected to condensate collection pipe in bottom end, and
Each secondary condenser part is connected to not condensable collecting pipe on top.
2. the air-cooled type industrial steam condensing unit that Large Field according to claim 1 is set up, including identical number
The primary condensing unit of amount and secondary condensing unit, each secondary condensing unit and single primary condensing unit match.
3. the air-cooled type industrial steam condensing unit that Large Field according to claim 2 is set up, wherein Mei Gere
Exchanger tube bank includes four primary condensing units and four secondary condensing units, wherein relative to adjacent primary condensation dress
Set/secondary condensing unit pair, each primary condensing unit/secondary condensing unit be to direction from left to right it is opposite,
So that first pair of steam inlet manifold in heat transfer tube bundle is directly adjacent to each other, and in same heat transfer tube bundle
Second pair of steam inlet manifold be directly adjacent to each other.
4. the air-cooled type industrial steam condensing unit that Large Field according to claim 3 is set up, wherein in a pair
In heat transfer tube bundle, the steam of the bottom end of the steam inlet manifold of the first heat-exchange tube bundle and second heat exchanger tube bank
The bottom end of inlet manifold is adjacent.
5. the air-cooled type industrial steam condensing unit that Large Field according to claim 4 is set up, wherein Yi Duire
The bottom end of described two adjacent steam inlet manifolds of the first heat-exchange tube bundle in exchanger tube bank and the second heat-exchange tube
The bottom end of the adjacent steam inlet manifold of two of beam is connected to the first end of one turn of four type steam manifold adapter, and wherein institute
The second end for stating one turn of four type steam manifold adapter is connected to steam supply manifold.
6. the air-cooled type industrial steam condensing unit that Large Field according to claim 1 is set up, wherein described first
The length of the multiple finned tube in grade condensing unit is 2.0m to 2.8m, cross-sectional width 200mm, and cross-sectional height is
4-10mm。
7. the air-cooled type industrial steam condensing unit that Large Field according to claim 6 is set up, wherein the pipe
Cross-sectional height be 5.2-7mm.
8. the air-cooled type industrial steam condensing unit that Large Field according to claim 7 is set up, wherein the pipe
Cross-sectional height be 6mm.
9. the air-cooled type industrial steam condensing unit that Large Field according to claim 1 is set up, wherein described first
The multiple finned tube in grade condensing unit has the fin for the flattened side for being connected to the pipe, and the height of the fin is
10mm, per inch are arranged at intervals with 9 to 12 fins.
10. the air-cooled type industrial steam condensing unit that Large Field according to claim 1 is set up, wherein described
The multiple finned tube in primary condensing unit has the fin for the flattened side for being connected to the pipe, the height of the fin
For 18mm to 20mm, across the space between adjacent tubes and adjacent tubes are contacted, per inch is arranged at intervals with 9 to 12 fins.
11. the air-cooled type industrial steam condensing unit that Large Field according to claim 1 is set up, wherein heat is handed over
Change the surface area of all secondary condensing units in tube bank, the surface of all primary condensing units in Zhan Tongyi heat-exchange tube bundle
Long-pending 10-20%.
12. the air-cooled type industrial steam condensing unit that Large Field according to claim 4 is set up, wherein two
Primary condensing unit/secondary condensing unit is to adjacent to each other, and the secondary condensing unit of two centerings is adjacent to each other, described two secondary
Condensing unit is combined into single secondary condensing unit.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110173115.0A CN112923745A (en) | 2016-12-22 | 2017-07-28 | Air cooling type industrial steam condensing device of microtube |
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201662438142P | 2016-12-22 | 2016-12-22 | |
| US62/438,142 | 2016-12-22 | ||
| US15/624,587 US10024600B2 (en) | 2016-06-21 | 2017-06-15 | Mini-tube air cooled industrial steam condenser |
| US15/624,587 | 2017-06-15 | ||
| PCT/US2017/038430 WO2017223139A1 (en) | 2016-06-21 | 2017-06-21 | Mini-tube air cooled industrial steam condenser |
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| CN202110173115.0A Division CN112923745A (en) | 2016-12-22 | 2017-07-28 | Air cooling type industrial steam condensing device of microtube |
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| CN202110173115.0A Pending CN112923745A (en) | 2016-12-22 | 2017-07-28 | Air cooling type industrial steam condensing device of microtube |
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| CN103217025B (en) * | 2013-05-06 | 2015-04-15 | 华北电力大学 | Air-cooling condenser structure containing horizontal shaft axial flow fan group |
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| EP0346848A2 (en) * | 1988-06-13 | 1989-12-20 | Michael William Larinoff | Air-cooled vacuum steam condenser |
| CN101099072A (en) * | 2005-01-07 | 2008-01-02 | 阿尔法拉瓦尔有限公司 | A heat exchanger device |
| CN101153765A (en) * | 2006-08-08 | 2008-04-02 | 林德股份公司 | Reflux condenser |
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|---|---|
| CN112923745A (en) | 2021-06-08 |
| CN110494712B (en) | 2021-02-26 |
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