CN101504256A - Vapor-liquid separation method for vertical condenser and condenser - Google Patents

Vapor-liquid separation method for vertical condenser and condenser Download PDF

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Publication number
CN101504256A
CN101504256A CNA2009100792565A CN200910079256A CN101504256A CN 101504256 A CN101504256 A CN 101504256A CN A2009100792565 A CNA2009100792565 A CN A2009100792565A CN 200910079256 A CN200910079256 A CN 200910079256A CN 101504256 A CN101504256 A CN 101504256A
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liquid
hole
header
condenser
vapor
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CN101504256B (en
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彭晓峰
王珍
陆规
吴迪
张易阳
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Tsinghua University
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Tsinghua University
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Abstract

The invention relates to a vapor-liquid separation method for a vertical condenser and a condenser. The vapor-liquid separation method comprises that: 1) multilevel headers are arranged at two ends of a plurality of groups of heat exchange tubes which are in vertical descending arrangement, liquid collecting and flow guiding tubes communicated with the headers are all provided with a liquid leaking and vapor stopping device inside to make the liquid collecting and flow guiding tubes form an independent liquid separation space, and the liquid leaking and vapor stopping device is provided with at least one equivalent main hole and a plurality of equivalent auxiliary holes; 2) vapor enters the plurality of groups of heat exchange tubes in turn for condensation, condensate liquid flows into the liquid collecting and flow guiding tubes, and when accumulated liquid in the liquid separation space is less, liquid films formed on the tops of the main hole and the auxiliary holes can prevent the vapor from leaking from the liquid collecting and flow guiding tubes; 3) when the accumulated liquid is more, the accumulated liquid firstly penetrates the main hole to flow out, and the auxiliary holes are sealed by the liquid films formed on the tops continuously; and 4) when the thickness of an accumulated liquid layer is increased, the accumulated liquid gradually penetrates the auxiliary holes and flows out from the main hole and the auxiliary holes simultaneously. The condenser adopts the vapor-liquid separation method and the liquid leaking and vapor stopping device. The method effectively solves the problem that the liquid discharge amount of the condenser is restricted in the prior art.

Description

A kind of vapor-liquid separation method of vertical (type) condenser and condenser
Technical field
The present invention relates to a kind of condenser, particularly about a kind of vapor-liquid separation method and condenser of vertical (type) condenser.
Background technology
Traditional air-cooled type liquid-gas phase transition condenser comprises shell 100, heat exchanger tube 101, air intake 102, three-way pipe 103 and condensate outlet 104 (as shown in Figure 1), wherein heat exchanger tube more than 101 adopts coiled pipe, rely on air heat convection outside heat exchanger tube 101, make the steam condensation in the heat exchanger tube 101.In the condensation heat transfer process, along with the carrying out of condensation, the wall condensation water progressively increases, and film forming has hindered contacting of steam and wall subsequently, is the main thermal resistance place of condensation heat transfer.Liquid film progressive additive in the condensation process, the complicated two phase flow that progressively increases for liquid in the quite long afterwards tube side, thermal resistance increases gradually, the serious variation of condensation effect; While, quantity of steam reduced gradually along with steam condenses, and steam flow rate obviously descends in the pipe, and condensation effect decreases sharply, and the coefficient of heat transfer reduces; The flow process condensation process has also caused complicated stream-liquid two-phase flow in the single pipe, to the regulation and control of system's operation stability, flow resistance and system etc., very adverse influence is arranged all.Air side, because in-tube condensation heat exchange thermal resistance increases, the outer tube wall temperature descends, and causes the utilization rate of fin to descend.For solving the problem of above-mentioned existence, traditional Air-cooled Condenser satisfies the demand of heat exchange amount to strengthen heat exchange area, thereby causes volume, weight bigger, and making and operating cost height.
In addition, the applicant is ZL200610113304.4 in the patent No., name is called " liquid separating air condenser " (as shown in Figure 2), and number of patent application is 200710064952.X, name is called in the patent of invention of " multistage cooling in the middle of liquid separating air condenser " (as shown in Figure 3) and has proposed to adopt multistage steam condensation, middle vapor-liquid separation automatically and discharge opeing, concentrates and assemble the cold excessively technical scheme of condensate liquid, thereby guaranteed that each tube side all enters with pure steam and is cooled, effectively reduced the thickness of liquid film in the condensation process and eliminated disadvantageous two-phase flow pattern.Made full use of short heat exchanger tube simultaneously, make each tube side all can be in the short tube pearl or unsettled thin liquid film condenses, or by influence promotion liquid film unstability and the fracture of steam to liquid film, the streams shape that forms film condensation and dropwise condensation coexistence condenses, strengthen the film condensation heat transfer effect, improve condensation heat transfer coefficient in the pipe.
Header 200 in above-mentioned two patents all is to use single discharging tube 201 as leakage resistance vapour device, this thinner discharging tube 201 can prevent preferably that gas separated is leaked from discharging tube 201 in the header 200, but this structure is brought following problem again: at first discharging tube 201 diameters are littler than header 200 diameters, the condensate stream weight range is subjected to bigger restriction, also can occur the not smooth problem of discharge opeing sometimes.Although in a back patent, adopted by solid top cover 202, the liquid distributing device (as shown in Figure 4) that porous core body 203 and discharge opeing tube wall 204 are formed, but because the liquid distributing device upper surface adopts solid top cover 202, condenser condensate liquid in service and liquid distributing device contact-making surface are the porous media side surface, therefore the separatory driving force of liquid distributing device mainly is the capillary suction force of porous core body 203, and the size of suction force is the structural parameters decision by selected porous media, autonomous regulating power a little less than, when condensing liquid quantity is big, may there be the not enough problem of suction force, has influence on the effect of separatory; Liquid distributing device structure more complicated in addition, large-scale production and follow-up installment work all can bring certain difficulty in industrial production.
Summary of the invention
At above problem, the purpose of this invention is to provide a kind of vapor-liquid separation method and condenser that can more effectively carry out the vertical (type) condenser of vapor-liquid separation.
To achieve these goals, the present invention takes following technical scheme: a kind of vapor-liquid separation method of vertical (type) condenser, it comprises following content: 1) the many groups of heat exchanger tubes that vertically successively decrease and arrange are set, each organizes the multistage header connection that heat exchanger tube is installed by two ends, one leakage resistance vapour device all is set in the liquid collecting mozzle that is connected with header, make the liquid collecting mozzle formation of headers at different levels independently divide liquid space, leakage resistance vapour device is provided with at least one equivalent main aperture and several equivalent via holes; 2) steam enters in proper order and respectively organizes heat exchanger tube and carry out condensation, and condensate liquid then flows into the liquid collecting mozzle of headers at different levels, the hydrops in a branch liquid space more after a little while, the liquid film that main aperture and via hole top form can stop steam to spill from the liquid collecting mozzle; 3) hydrops in a branch liquid space accumulates more for a long time, and hydrops can at first be worn out the main hole with larger diameter outflow under pressure, and the less via hole of diameter continues to be sealed by the liquid film that the top forms; 4) the hydrops layer thickness in a branch liquid space increases, and can progressively wear out the less via hole in aperture under pressure, flows out from main aperture and via hole simultaneously.
Described main aperture equivalent diameter is 2~5mm, and the via hole equivalent diameter is less than 2mm.
The negotiability of described leakage resistance vapour device is characterized by porosity S:
S=A p/A t
A wherein p, A tBe respectively the long-pending ratio of total circulation area of main aperture and via hole and leakage resistance vapour apparatus surface, porosity S is 20~50% of a liquid-gas phase transition heat exchanger system circular flow.
A kind of vertical vapor-liquid separation condenser is characterized in that: it comprises a heat exchange unit module, and described heat exchange unit module comprises the many groups of heat exchanger tubes that successively decrease step by step and vertically arrange, and described heat exchanger tube is outside equipped with fin; Each organizes the multistage header connection that described heat exchanger tube is installed by two ends, on the described header of the first order air intake is set; The described header of the first order is communicated with the described header in the second level by first group of described heat exchanger tube, and the described header in the second level is communicated with the described header of the third level by second group of described heat exchanger tube ..., the described header of one-level to the last; Each organizes the inner certain-length of described header that described heat exchanger tube extend out to its top, and does not need being connected of its below so; The bottom of all the other described headers at different levels connects a liquid collecting mozzle respectively except that the described header of the first order, each described liquid collecting mozzle discharging tube that is connected in parallel; One leakage resistance vapour device all is set in each described liquid collecting mozzle; Described leakage resistance vapour device is provided with at least one main aperture and several via holes.
Described leakage resistance vapour device is one can be inlaid into the substrate in the described liquid collecting mozzle, and described substrate is provided with main aperture that at least one equivalent diameter is 2~5mm and several equivalent diameters via hole less than 2mm.
Described main aperture on the described substrate is respectively the identical straight type hole of upper and lower equivalent diameter with via hole.
Main aperture on the described substrate and via hole are respectively one of frustum hole and variable cross-section through hole.
Some via holes on the described substrate and described main aperture edge intersect, and form holistic plum blossom shape hole.
Between the edge of the plum blossom shape hole of described integral body and described substrate, be provided with some independently via holes.
In described main aperture and via hole, be provided with the porous media core.
The material of described substrate is a metal material.
The material of described substrate is a porous media material.
It comprises series connection about two described heat exchange unit modules, and described header topmost is for connecting the straight-through header of turning back of two described heat exchange unit modules.
The quantity of described heat exchange unit module is two or more, and the described header at described heat exchange unit module two ends is the header of turning back that is communicated with a plurality of described heat exchange unit modules in the left and right sides.
It comprises head and the tail in parallel about two described heat exchange unit modules.
The present invention is owing to take above technical scheme, it has the following advantages: 1, the present invention is provided with multistage header at the many groups of two ends of arranging heat exchanger tube of vertically successively decreasing, with liquid collecting mozzle that headers at different levels are connected in the leakage choke device is set, at least one main aperture and some via holes are set on the substrate of leakage choke device simultaneously, therefore liquid to be separated is more after a little while in the liquid collecting mozzle, the liquid of being separated by header will form water membrane at main aperture and via hole surface, stops gas to flow out from main aperture and via hole; When liquid measure increased slightly, main hole with larger diameter is sepage at first, was equivalent to single discharging tube discharge opeing of the prior art; When the liquid measure of separating was big, the pressure of liquid can destroy the liquid film that covers the via hole surface, and also oozes out from via hole, thereby being equivalent to increase is many discharging tube discharge opeings, has solved the problem that lifting rate is restricted in the prior art.2, the present invention is owing to be provided with a plurality of holes that can leakage on substrate, and the equivalent diameter size in hole can change to some extent according to designing requirement, though therefore the equivalent aperture in each hole is smaller, but whole leakage total amount is bigger, being provided with of hole, particularly different equivalents aperture can be according to the variation of hydrops amount, automatically regulate the quantity in leakage aperture, structural design is very ingenious.3, the present invention is because the perforate quantity on substrate is many, therefore the equivalent aperture can be less, less equivalent pore-size distribution can produce big surface tension effect, thereby guaranteed resistance vapour ability of the present invention effectively, the substrate of porous also has remarkable advantages aspect the resolution system inner engine oil obstruction separatory core simultaneously.4, the present invention is owing to be provided with the porous media core in main aperture and via hole, therefore even the systemic circulation flow very hour, also can guarantee the resistance vapour ability of pore structure by the littler pore structure of porous media core, the present invention is filling porous dielectric core under the condition that does not change pore structure, can effectively strengthen the effect of pore surface tension force, strengthen resistance vapour ability.Because the swabbing action of porous media core also can guarantee the circulation of liquid preferably, realize the separatory function under the partial circulating flow simultaneously.5, the present invention hinders the vapour device with leakage and directly is embedded in the liquid collecting mozzle, compared with prior art, all has its advantage in processing in early stage, operation stability and later maintenance, is adapted to the requirement that the industrialization module is produced.The present invention can be widely used in energy resource system, power engineering, chemical industry and industries such as petrochemical industry, auto industry, such as condenser in Air-conditioning Engineering and chemical system, the car air-conditioner or the like.
Description of drawings
It among Fig. 1 traditional air-cooled type liquid-gas phase transition condenser structure schematic diagram
Fig. 2 is the liquid separating air condenser of prior art
Fig. 3 is the multi-stage condensing of prior art, the aerial condenser of middle separatory
Fig. 4 is the structural representation of the leakage resistance vapour device among Fig. 2 and Fig. 3
Fig. 5 a is a series connection vertical pipe type condenser unit structural representation of the present invention
Fig. 5 b is the partial enlarged drawing of Fig. 5 a
Fig. 6, Fig. 7 are that the master of the embodiment of the invention 2 looks and schematic top plan view
Fig. 8, Fig. 9 are that the master of the embodiment of the invention 3 looks and schematic top plan view
Figure 10, Figure 11 are that the master of the embodiment of the invention 4 looks and schematic top plan view
Figure 12, Figure 13 are that the master of the embodiment of the invention 5 looks and schematic top plan view
Figure 14, Figure 15 are that the master of the embodiment of the invention 6 looks and schematic top plan view
Figure 16, Figure 17 are that the master of the embodiment of the invention 7 looks and schematic top plan view
Figure 18, Figure 19 are that the master of the embodiment of the invention 8 looks and schematic top plan view
Figure 20, Figure 21 are that the master of the embodiment of the invention 9 looks and schematic top plan view
Figure 22 is a series connection vertical pipe type condenser structure schematic diagram of the present invention
Figure 23 is the structural representation after Figure 22 removes fin
Figure 24 is a vertical pipe type condenser structure schematic diagram in parallel of the present invention
The specific embodiment
Below in conjunction with drawings and Examples the present invention is described in detail.
Embodiment 1: a kind of series connection vertical pipe type condenser unit
As shown in Figure 5, present embodiment comprises a heat exchange unit modules A, and the heat exchange unit modules A comprises many groups (or from the bottom to top) heat exchanger tube 1 of successively decreasing step by step and vertically arranging from top to bottom, and heat exchanger tube 1 is outside equipped with fin 11.Each organizes multistage header 2 connections that heat exchanger tube 1 is installed by two ends, and can adjust the progression of heat exchanger tube 1 and header 2 as required.On first order header 2 (be header topmost among the figure, but be not limited thereto), an air intake 21 is set.First order header 2 is communicated with second level header 2 by first group of heat exchanger tube 1, and second level header 2 is communicated with third level header 2 by second group of heat exchanger tube 1 ..., to the last the one-level header 2.Each organizes the header 2 inner certain-lengths that heat exchanger tube 1 extend out to its top, does not need so with being connected of its below.The bottom of all the other headers 2 at different levels connects a liquid collecting mozzle 22 respectively except that first order header 2, each liquid collecting mozzle 22 discharging tube 23 that is connected in parallel.One leakage resistance vapour device 3 all is set in each liquid collecting mozzle 22, independently divides liquid space, make simultaneously and respectively organize heat exchanger tube 1 formation a plurality of condensation spaces of order connection up and down thereby each liquid collecting mozzle 22 is formed.
As Fig. 6, shown in Figure 7, the leakage resistance vapour device 3 in the foregoing description comprises the substrate 31 that is inlaid in the liquid collecting mozzle 2, and substrate 31 is provided with the main aperture 32 and the via hole 33 of several equivalent diameters less than 2mm that at least one equivalent diameter is 2~5mm.Be the embodiment of leakage resistance vapour device 3 of the present invention below.
Embodiment 2:
Leakage in present embodiment resistance vapour device 3 comprise one with the big or small identical substrate 31 of liquid collecting mozzle 2 cross sections, it is the main aperture 32 of 2~5mm with the aperture that the center of substrate 31 has an equivalent diameter, evenly is placed with a circle equivalent diameter less than the via hole 33 of 2mm with the equivalent aperture around main aperture 32.The condensate liquid that produces in condenser upstream heat exchanger tube 1 more after a little while can be at main aperture 32 and via hole 33 surperficial one deck liquid films that form of substrate 31 by the liquid that header 2 is separated, and prevention liquid and gas flow out from main aperture 32 and via hole 33.When liquid measure increased slightly, main hole with larger diameter 32 at first sepages of meeting were equivalent to single discharging tube discharge opeing of the prior art.When the liquid measure of separating was big, the pressure of liquid can destroy the liquid film that covers via hole 33 surfaces, and also oozes out from via hole 33, so just is equivalent to increase to many discharging tube discharge opeings, has solved the problem that lifting rate is restricted in the prior art.
Embodiment 3:
As Fig. 8, shown in Figure 9, the main aperture 32 in the present embodiment and the size range of via hole 33 are similar to Example 1, and different is, and main aperture 32 and via hole 33 are the frustum holes that become the equivalent aperture, the equivalent aperture can above big, below little; Also can be up-small and down-big, can also be that variable cross-section amasss form arbitrarily.This structure can make can both carry a certain amount of condensate liquid in main aperture 32 and the via hole 33, main aperture 32 when condensing liquid quantity is relatively low, also can guarantee discharge opeing continuously, can prevent that steam from passing.There is condensate liquid can improve its resistance vapour ability in the hole of via hole 33, prevents that steam from passing, also can improve resistance vapour ability and can quicken discharge opeing again according to pass.
Embodiment 4:
As Figure 10, shown in Figure 11, be to intersect mutually between main aperture 32 in the present embodiment and the via hole 33, present " plum blossom " hole shape structure.The plum blossom hole shape structure that intersects can be regarded the extended configuration of a main aperture 32 as, compare single main aperture 32 structures, its circulation equivalent diameter increases to some extent, but the condensate liquid of efficient hardening main aperture 32 circulation ability, simultaneously via hole 33 and main aperture 32 intersect and can hour adhere to certain condensate liquid by surface tension in that liquid measure is relative, have strengthened the resistance vapour-liquid of installing and have sealed ability.
Embodiment 5:
As shown in Figure 12 and Figure 13, the via hole 33 in the present embodiment intersects with main aperture 32, when forming " plum blossom " hole shape structure, also is provided with and main aperture 32 disjoint via holes 33.This is a kind of combination of said structure, when circulation area increases, has guaranteed that leakage resistance vapour device 3 has regulating power at bigger sphere of circulation.
The function of above structure mainly is to adopt the combined method in different equivalents aperture to strengthen the resistance vapour ability and the fluid flow regulating power of leakage resistance vapour device 3 from pore structure, main aperture 32 guarantees the basic leakage ability of leakage resistance vapour device 3, via hole 33 guarantees the fluid flow regulating power of leakage resistance vapour device 3, at amount of liquid hour, intercept the steam circulation by the fluid-tight effect.Directly adopt above-mentioned loose structure substrate 31, remarkable advantages is arranged solving condenser system machine oil obstruction substrate 31 aspects.
Embodiment 6:
Shown in Figure 14,15, present embodiment is in the main aperture 32 that is provided with on the substrate of making 31 and the via hole 33 porous media core 34 to be set.In the less heat exchanger of condensate liquid flow,, need littler pore structure to guarantee the resistance vapour ability of pore structure because the condensate liquid flow is less, filling porous dielectric core 34, can under the condition that does not change pore structure, strengthen the effect of pore surface tension force, strengthen resistance vapour ability.The swabbing action of porous media core 34 also can guarantee the circulation of condensate liquid simultaneously, realizes the separatory effect under the little condensate liquid flow.
Embodiment 7:
Shown in Figure 16,17, present embodiment is to intersect in the aperture that presents " plum blossom " hole shape structure with via hole 33 at main aperture 32 porous media core 34 is set, and this structure can possess on the foregoing description 3 characteristics bases, has strengthened the resistance vapour effect of device.
Embodiment 8:
Shown in Figure 18,19, present embodiment is to intersect under the situation about also being provided with when presenting " plum blossom " hole shape structure with main aperture 32 disjoint via holes 33 at main aperture 32 and via hole 33, is provided with porous media core 34 in each hole.This structure is under the situation of the foregoing description 4 described textural associations, has guaranteed that when circulation area increases leakage resistance vapour device 3 has regulating power at bigger sphere of circulation, has guaranteed the resistance vapour effect of device simultaneously.
Embodiment 9:
Shown in Figure 20,21, present embodiment is similar to Example 1, but adopts porous media material as substrate 31, cooperates the structure of main aperture 32, via hole 33, loose structure by porous media material itself guarantees resistance vapour ability, and through-hole structure guarantees leakage shunting ability.
In the various embodiments described above, leakage resistance vapour device 3 adopts solid material identical with liquid collecting mozzle 2 cross sections or solid porous medium as substrate 31, is generally metal material, is guaranteeing also can to adopt other materials under the prerequisite that closely contacts with header 2 nothing leakages.Substrate 31 directly is embedded in the position of determining in the header 2, and the substrate 31 general welding manners that adopt of metal material are fixed, and structure is greatly simplified.Hole on the porous plate can adopt the hole of different equivalents aperture, structure to constitute, and each pore structure becomes the equivalent aperture, also can be with the equivalent aperture, and porous media material can adopt porous media that the powder particle sintering makes or silk screen etc.
As shown in Figure 5, when the present invention uses, the heat exchanger tube 1 of air side air transversal flow band fin 11 is with steam in the condenser pipe, after steam enters first order header 2 by air intake 21, sent into first group of heat exchanger tube 1 from the bottom to top uniformly and carried out condensation, liquid-vapor mixture flows into the second level header 2 of first group of heat exchanger tube 1 other end, condensate liquid flows into liquid collecting mozzle 22 and converges to leakage resistance vapour device 3 tops in second level header 2, hydrops in liquid collecting mozzle 22 more after a little while, the liquid film that main aperture 32 and via hole 33 tops form can stop steam to pass through, and makes steam enter next group heat exchanger tube 1.Continuous accumulation along with liquid, liquid can at first be drained by main hole with larger diameter 32 under the gravity effect, liquid is discharged through the liquid collecting mozzle 22 of header 2 bottoms and is come together in the discharging tube 23, the less via hole 33 of diameter can be sealed by the liquid film that a spot of liquid forms, and prevents that effectively steam from passing through; And when amount of liquid bigger, the liquid of assembling on leakage resistance vapour device 3 tops increases, and liquid layer thickness increases, and the pressure head that gravity produces increases, the through-current capability of the via hole 33 of minor diameter is activated, and can effectively reduce the excessive gathering of liquid on leakage resistance vapour device 3 tops.At this moment, steam continues to enter next group heat exchanger tube 1 under the vapor-liquid separation effect of leakage resistance vapour device 3, going down successively enters afterbody header 2 through appropriate stage-number, and steam is by whole condensations, condensate liquid comes together in the discharging tube 23, finally flows out through condensate outlet.The negotiability experiment in hole shows that under certain liquid level condition, the fluid flow of through hole roughly is directly proportional with the through hole circulation area, therefore characterizes the negotiability of leakage resistance vapour device 3 by defined parameters porosity S,
S=A p/A t
A wherein p, A tBe respectively logical area sum of each orifice flow and substrate 31 surface areas.Parameter S determined by the condenser system circular flow, roughly for this reason 20~50%.
In order to guarantee integrally-built compactedness, to adapt to different purposes and space structure requirement, condenser of the present invention also can adopt following version.
Embodiment 10: a kind of series connection vertical pipe type condenser
As Figure 22, shown in Figure 23, the difference of present embodiment and embodiment 1 it comprise connect about two heat exchange unit modules A, and header topmost 2 is for connecting the straight-through header 24 of turning back of two heat exchange unit modules A.With liquid collecting mozzle 22 that headers 2 at different levels are connected in leakage resistance vapour device 3 all is set, thereby each liquid collecting mozzle 22 is formed independently divide liquid space, and make and respectively organize a plurality of condensation spaces that are communicated with in proper order about heat exchanger tube 1 forms, whole like this steam flow is " ∩ " shape, this structure is more compact, save the space, have higher using value.In the present embodiment, after steam enters first order header 2 by air intake 21, sent into first group of heat exchanger tube 1 from the bottom to top uniformly and carry out condensation, liquid-vapor mixture flows into the header 2 of heat exchanger tube 1 other end, realizes vapor-liquid separation by the resistance of the leakage in the liquid collecting mozzle 22 vapour device 3.Liquid is discharged through the liquid collecting mozzle 22 of header 2 bottoms and is come together in the discharging tube 23, steam then enters next group heat exchanger tube 1, descend devaporation by at different levels and reverse successively through the header 24 of turning back, adverse current is by at different levels once more, finally enter afterbody header 2, steam comes together in the discharging tube 23 entirely by whole condensations, finally flows out through condensate outlet.
In the foregoing description, can adjust the quantity (two or more) of heat exchange unit modules A and number of times (more than twice or twice) that steam is turned back as required, this moment, the header 2 at heat exchange unit modules A two ends was the header of turning back that is communicated with the left and right sides a plurality of (at least two) heat exchange unit modules A.
Embodiment 11: a kind of vertical pipe type condenser in parallel
As shown in figure 24, present embodiment comprise head and the tail in parallel about two heat exchange unit modules A, in two heat exchange unit modules A with in the liquid collecting mozzle 22 that header 2 is connected, be provided with leakage resistance vapour device 3, thereby each the liquid collecting mozzle 22 that makes two heat exchange unit modules A forms and independently divides liquid space, makes simultaneously and respectively organizes heat exchanger tube 1 formation a plurality of condensation spaces of order connection up and down.Present embodiment is similar on the mobile and heat exchange mode of steam to embodiment 1.
The inventive method can also be used for other various heating-cooling equipments, gives unnecessary details no longer one by one at this, anyly all should not get rid of outside protection scope of the present invention based on improvement on the principle of the invention and the technical scheme and equivalent transformation.

Claims (16)

1, a kind of vapor-liquid separation method of vertical (type) condenser, it comprises following content:
1) the many groups of heat exchanger tubes that vertically successively decrease and arrange is set, each organizes the multistage header connection that heat exchanger tube is installed by two ends, one leakage resistance vapour device all is set in the liquid collecting mozzle that is connected with header, make the liquid collecting mozzle formation of headers at different levels independently divide liquid space, leakage resistance vapour device is provided with at least one equivalent main aperture and several equivalent via holes;
2) steam enters in proper order and respectively organizes heat exchanger tube and carry out condensation, and condensate liquid then flows into the liquid collecting mozzle of headers at different levels, the hydrops in a branch liquid space more after a little while, the liquid film that main aperture and via hole top form can stop steam to spill from the liquid collecting mozzle;
3) hydrops in a branch liquid space accumulates more for a long time, and hydrops can at first be worn out the main hole with larger diameter outflow under pressure, and the less via hole of diameter continues to be sealed by the liquid film that the top forms;
4) the hydrops layer thickness in a branch liquid space increases, and can progressively wear out the less via hole in aperture under pressure, flows out from main aperture and via hole simultaneously.
2, the vapor-liquid separation method of a kind of vertical (type) condenser as claimed in claim 1 is characterized in that: described main aperture equivalent diameter is 2~5mm, and the via hole equivalent diameter is less than 2mm.
3, the vapor-liquid separation method of a kind of vertical (type) condenser as claimed in claim 1 or 2 is characterized in that: the negotiability of described leakage resistance vapour device is characterized by porosity S:
S=A p/A t
A wherein p, A tBe respectively the long-pending ratio of total circulation area of main aperture and via hole and leakage resistance vapour apparatus surface, porosity S is 20~50% of a liquid-gas phase transition heat exchanger system circular flow.
4, a kind of vertical vapor-liquid separation condenser of using as method as described in the claim 1~3, it is characterized in that: it comprises a heat exchange unit module, described heat exchange unit module comprises the many groups of heat exchanger tubes that successively decrease step by step and vertically arrange, and described heat exchanger tube is outside equipped with fin; Each organizes the multistage header connection that described heat exchanger tube is installed by two ends, on the described header of the first order air intake is set; The described header of the first order is communicated with the described header in the second level by first group of described heat exchanger tube, and the described header in the second level is communicated with the described header of the third level by second group of described heat exchanger tube ..., the described header of one-level to the last; Each organizes the inner certain-length of described header that described heat exchanger tube extend out to its top, and does not need being connected of its below so; The bottom of all the other described headers at different levels connects a liquid collecting mozzle respectively except that the described header of the first order, each described liquid collecting mozzle discharging tube that is connected in parallel; One leakage resistance vapour device all is set in each described liquid collecting mozzle;
Described leakage resistance vapour device is provided with at least one main aperture and several via holes.
5, a kind of vertical vapor-liquid separation condenser as claimed in claim 4, it is characterized in that: described leakage resistance vapour device is one can be inlaid into the substrate in the described liquid collecting mozzle, and described substrate is provided with main aperture that at least one equivalent diameter is 2~5mm and several equivalent diameters via hole less than 2mm.
6, a kind of vertical vapor-liquid separation condenser as claimed in claim 5 is characterized in that: the described main aperture on the described substrate is respectively the identical straight type hole of upper and lower equivalent diameter with via hole.
7, a kind of vertical vapor-liquid separation condenser as claimed in claim 5, it is characterized in that: main aperture on the described substrate and via hole are respectively one of frustum hole and variable cross-section through hole.
8, as claim 5 or 6 or 7 described a kind of vertical vapor-liquid separation condensers, it is characterized in that: some via holes on the described substrate and described main aperture edge intersect, and form holistic plum blossom shape hole.
9, as claim 5 or 6 or 7 described a kind of vertical vapor-liquid separation condensers, it is characterized in that: between the edge of the plum blossom shape hole of described integral body and described substrate, be provided with some independently via holes.
10, a kind of vertical vapor-liquid separation condenser as claimed in claim 8 is characterized in that: be provided with some independently via holes between the edge of the plum blossom shape hole of described integral body and described substrate.
11, as the described a kind of vertical vapor-liquid separation condenser of claim 4~10, it is characterized in that: in described main aperture and via hole, be provided with the porous media core.
12, as the described a kind of vertical vapor-liquid separation condenser of claim 5~11, it is characterized in that: the material of described substrate is a metal material.
13, as the described a kind of vertical vapor-liquid separation condenser of claim 5~11, it is characterized in that: the material of described substrate is a porous media material.
14, as the described a kind of vertical vapor-liquid separation condenser of claim 4~13, it is characterized in that: it comprise series connection about two described heat exchange unit modules, and described header topmost is for connecting the straight-through header of turning back of two described heat exchange unit modules.
15, a kind of vertical vapor-liquid separation condenser as claimed in claim 14, it is characterized in that: the quantity of described heat exchange unit module is two or more, and the described header at described heat exchange unit module two ends is the header of turning back that is communicated with a plurality of described heat exchange unit modules in the left and right sides.
16, as the described a kind of vertical vapor-liquid separation condenser of claim 4~13, it is characterized in that: it comprise head and the tail in parallel about two described heat exchange unit modules.
CN2009100792565A 2009-03-05 2009-03-05 Vapor-liquid separation method for vertical condenser and condenser Expired - Fee Related CN101504256B (en)

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CN103335534A (en) * 2013-06-09 2013-10-02 南通久信石墨科技开发有限公司 Multi-layer efficient distilling condensation separating tower and mixed gas separating method thereof
CN103827449A (en) * 2011-09-28 2014-05-28 奥尔灿能源有限公司 Device and method for condensation of steam from ORC systems
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CN105716440A (en) * 2015-12-18 2016-06-29 广东工业大学 Plate type condenser with gas-liquid separation function
CN104422301B (en) * 2013-09-10 2016-09-14 贵阳铝镁设计研究院有限公司 The device of condensed water in a kind of heat transmission equipment discharged with steam as thermal source
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CN103827449A (en) * 2011-09-28 2014-05-28 奥尔灿能源有限公司 Device and method for condensation of steam from ORC systems
CN103827449B (en) * 2011-09-28 2016-03-02 奥尔灿能源有限公司 For the apparatus and method of condensation from the steam of ORC system
CN103335534A (en) * 2013-06-09 2013-10-02 南通久信石墨科技开发有限公司 Multi-layer efficient distilling condensation separating tower and mixed gas separating method thereof
CN104422301B (en) * 2013-09-10 2016-09-14 贵阳铝镁设计研究院有限公司 The device of condensed water in a kind of heat transmission equipment discharged with steam as thermal source
CN104236336A (en) * 2014-09-15 2014-12-24 新奥科技发展有限公司 Tube-in-tube shell-and-tube heat exchanger
CN105716440A (en) * 2015-12-18 2016-06-29 广东工业大学 Plate type condenser with gas-liquid separation function
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CN111617511A (en) * 2020-06-08 2020-09-04 杭州碳明科技有限公司 Condensing device

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