CN104215114B - Plural serial stage gas-liquid current equalizer - Google Patents
Plural serial stage gas-liquid current equalizer Download PDFInfo
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- CN104215114B CN104215114B CN201410457967.2A CN201410457967A CN104215114B CN 104215114 B CN104215114 B CN 104215114B CN 201410457967 A CN201410457967 A CN 201410457967A CN 104215114 B CN104215114 B CN 104215114B
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Abstract
The invention discloses a kind of plural serial stage gas-liquid current equalizer.It mainly comprises core cylinder, interior splitter, disk, spray porous plate, isocon, dividing plate, it is inner that described interior splitter is fixed on core cylinder, described disk is inner at core cylinder, below separator, it is outside that described spray porous plate and dividing plate are alternately fixed on core cylinder, described porous plate is provided with opening, described dividing plate have be wound around tube bank through, described isocon is evenly through on spray porous plate, isocon is provided with bar seam and overfall, and it is mainly used in the intergrade of multi-stage gas-liquid current divider series connection in industrial medium-and-large-sized wound tube heat exchanger.Plural serial stage gas-liquid current equalizer of the present invention can solve in prior art because gas-liquid two-phase skewness causes that the inefficiency of wound tube heat exchanger, energy consumption are large, the life-span is short and the problem such as the limitation of single-stage gas-liquid flow equalizer.
Description
Technical field
The present invention relates to a kind of plural serial stage gas-liquid current equalizer, belong to gas liquid two-phase flow technical field.
Background technology
Wound tube heat exchanger is the visual plant of large-scale petroleum chemical industry, natural gas liquefaction plant application, and because its technology Calculation complexity causes manufacture difficulty very big, engineering is monopolized by offshore company always, and production domesticization is made slow progress.In recent ten years, China just carries out a series of correlative study to wound tube heat exchanger production domesticization successively, and achieves the production domesticization of small multi-strand stream wound tube heat exchanger.
Wound tube heat exchanger compact conformation, two phase flow operating mode is complicated, and the distribution structure difficult design of two phase flow entrance, adds that flow shakes, and uniform distribution has very large difficulty.If two phase flow skewness, the phenomenon such as bias current or short circuit may be there is, cause some heat exchange pipeline section heat exchange uneven, the temperature difference is there is between heat exchanger tube, produce thermal stress, not only reduce the heat transmission equipment life-span, and too increase system energy consumption while reducing heat exchanger efficiency.Therefore, the importance of uniform gas-liquid distribution is more outstanding to wound tube heat exchanger.But, existing patented technology is drawing-in type and overflow-type current equalizer both at home and abroad, for solving the biphase gas and liquid flow of the single-phase flow of air conditioner coolant, hydrogenation reactor and plate-fin heat exchanger, and the uniform problem of gas-liquid-solid three phase flow in petroleum refining and petro chemical industry, and the gas-liquid that drawing-in type and overflow-type current equalizer are not still suitable for wound tube heat exchanger is uniform, mainly there are the following problems: the even distribution device complex structure of (1) drawing-in type, and droop loss is large; (2) the even distribution device gas-liquid mixed distribution effects of overflow-type is poor, has a strong impact on heat exchanger efficiency; (3) drawing-in type and overflow-type even distribution device cannot meet high, the energy-conservation requirement of wound tube heat exchanger compact conformation, sealing.
Summary of the invention
The object of this invention is to provide a kind of plural serial stage gas-liquid current equalizer, the present invention can solve skewness after the heat-exchanging tube bundle section that biphase gas and liquid flow enters in wound tube heat exchanger shell-side, thus cause the inefficiency of wound tube heat exchanger, the problem such as pressure drop that biphase gas and liquid flow produces when flowing through equipment is large, the reduced lifetime of heat exchanger.
Plural serial stage gas-liquid current equalizer provided by the present invention, comprises a core cylinder; The sidewall of described core cylinder is provided with at least 1 gas-liquid two-phase import and at least 1 gaseous phase outlet, and described gas-liquid two-phase import and described gaseous phase outlet are for being oppositely arranged;
Be provided with a deflection plate in the cavity of described core cylinder, and described deflection plate is located between described gas-liquid two-phase import and described gaseous phase outlet;
Be provided with a disk in the bottom of described deflection plate in the cavity of described core cylinder, described disk is arranged along the radial direction of described core cylinder, and and be sealed and matched between described core cylinder;
Along described core drum outer wall be circumferentially provided with several spray porous plate, described spray porous plate is a hollow sheeting; Described spray porous plate runs through several isocons are set, and described isocon extends from the two ends of described spray porous plate;
Described isocon is provided with the gap and overfall that extend along its length, and described gap is located in the cavity of described spray porous plate, and described overfall is positioned at the top of described spray porous plate;
The bottom of described disk and described spray porous plate is positioned in same level, and described spray porous plate is provided with fluid inlet towards an end face of described core cylinder and the sidewall of corresponding described core cylinder.
Above-mentioned plural serial stage gas-liquid current equalizer, described deflection plate is made up of orthogonal plate.
Above-mentioned plural serial stage gas-liquid current equalizer, spacing is provided with between described spray porous plate, and be provided with dividing plate between adjacent described spray porous plate, described dividing plate is wound around tube bank by one to be run through, effect is by winding tube bank environmental seal, prevents liquid and gas from flowing directly to the heat exchange pipeline section of lower end without shunting.
Above-mentioned plural serial stage gas-liquid current equalizer, alternately evenly distributed between described spray porous plate and described dividing plate.
Above-mentioned plural serial stage gas-liquid current equalizer, is provided with spacing between described overfall and described spray porous plate.
Above-mentioned plural serial stage gas-liquid current equalizer, the height of described fluid inlet is identical with the height of described spray porous plate, is convenient to reduce liquid flowing resistance and be convenient to machining.
Above-mentioned plural serial stage gas-liquid current equalizer, described isocon is evenly arranged along described spray porous plate.
The short transverse of described gap along described isocon arranges by the present invention, to enter in described isocon mix with the gas phase in it to make to enter liquid phase in described spray porous plate by described gap.
The short transverse of overfall along described isocon arranges by the present invention, mixes with the gas phase in it to make the liquid phase in shell-side space, top enter in described isocon by described overfall.
The two ends of described isocon from described spray porous plate are extended by the present invention, and are provided with described overfall in the part bilateral symmetry exceeded, and are convenient to collect the liquid phase fluid that falls from upper end, make its enter in isocon with gaseous fluid Homogeneous phase mixing.
When the present invention being used for the wound tube heat exchanger of diameter, multiple two-phase entrance and gaseous phase outlet can be symmetrical arranged in the outside wall surface of described core cylinder, be convenient to gaseous fluid and distributing at core cylinder shell side space uniform.
Compared with prior art, the present invention has following beneficial effect:
(1) structure of plural serial stage gas-liquid current equalizer provided by the invention is simple, and be easy to manufacture, cost is lower, and has certain bearing capacity.
(2) the present invention utilizes core cylinder as gas-liquid separator, saves space and avoids in-site installation.
(3) gaseous fluid impacts the blending that the liquid phase fluid entered from gap and overfall achieves gas-liquid two-phase, and the isocon that spray porous plate is evenly arranged achieves gas phase flow rate and the mean allocation of liquid phase flow on whole current divider cross section; Isocon is higher than hollow sheeting and be provided with overfall, is convenient to reclaim the liquid phase fluid that upper end falls, and make its enter in isocon with gaseous fluid Homogeneous phase mixing; The uniform distribution of gas-liquid two-phase, improves the operating efficiency of wound tube heat exchanger and reduces pressure drop, plays energy-conservation effect.
Accompanying drawing explanation
Fig. 1 is the structural representation of plural serial stage gas-liquid current equalizer of the present invention, and solid arrow wherein represents the flow direction of gas phase, and dotted arrow represents the flow direction of liquid phase.
Fig. 2 is the A-A sectional view of Fig. 1.
Fig. 3 be plural serial stage gas-liquid current equalizer of the present invention disk in liquid level schematic diagram.
Fig. 4 is the structural representation of the spray porous plate of plural serial stage gas-liquid current equalizer of the present invention.
In figure, each mark is as follows:
1 separating plate, 2 gas-liquid two-phase imports, 3 gaseous phase outlets, 4 disks, 5 spray porous plates, 6 isocons, 7 are wound around tube bank, 8 dividing plates, 9 core cylinders, 10 deflection plates, 11 hollow sheetings, 12 fluid inlet, 13 gaps, 14 overfalls.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention will be further described, but the present invention is not limited to following examples.
As shown in Figure 1, plural serial stage gas-liquid two-phase current equalizer provided by the invention, it comprises a core cylinder 9, and the sidewall of this core cylinder 9 is provided with 1 gas-liquid two-phase import 2 and 1 gaseous phase outlet 3, and this gas-liquid two-phase import 2 and gaseous phase outlet 3 are for being oppositely arranged; In core cylinder 9, be provided with a deflection plate 10, and deflection plate 10 is located between gas-liquid two-phase import 2 and gaseous phase outlet 3; This deflection plate 10 by 2 anyhow orthogonal plate form, in core cylinder 9 formed a separator 1.
As shown in FIG. 1 to 3, be provided with a disk 4 in the cavity of core cylinder 9, this disk 4 is arranged along the radial direction of core cylinder 9, and and for being sealed and matched between core cylinder 9.Circumferentially be provided with 8 spray porous plates 5 and dividing plate 8 along core cylinder 9 outer wall, and spray porous plate 5 and dividing plate 8 are alternately evenly distributed.
As shown in Figure 4, this spray porous plate 5 is a hollow sheeting 11, this hollow sheeting 11 runs through along its short transverse multiple isocon 6 be evenly arranged is set, and isocon 6 extends from the two ends of hollow sheeting 11, this isocon 6 is provided with gap 13 and overfall 14 along its short transverse, and overfall 14 is above hollow sheeting 11.Wherein disk 4 is positioned in same level with the bottom of spray porous plate 5 and dividing plate 8.And be fluid inlet 12 at spray porous plate 5 towards an end face of core cylinder 9, its height is identical with the height of hollow sheeting 11.
Plural serial stage gas-liquid two-phase current equalizer provided by the invention is applicable to the vertical wound tube heat exchanger of plural serial stage, and be positioned at middle part and the bottom of heat exchanger, when for large diameter wound tube heat exchanger, multiple gas-liquid two-phase entrance and gaseous phase outlet can be symmetrical arranged at core tube wall surface.
When using plural serial stage gas-liquid two-phase current equalizer of the present invention, be arranged on the upper end of heat exchange pipeline section in wound tube heat exchanger, do not taken other space.Biphase gas and liquid flow enters in core cylinder 9 from the gas-liquid two-phase import 2 core cylinder 9, gas-liquid separation is carried out in interior splitter 1, gas phase flows out core cylinder 9 from the gaseous phase outlet 3 core cylinder 9, enter shell-side, enter in isocon 6 by the overfall 14 of isocon 6 upper end on spray porous plate 5 under the effect of pressure differential, and liquid phase falls into disk 4, form certain liquid level, enter in spray porous plate 5 by fluid inlet 12, because Action of Gravity Field enters in isocon 6 by gap 13 overflow on isocon, under the carrying of gas phase, eject gas-liquid current equalizer.The liquid phase fluid that upper end falls forms certain liquid level above hollow sheeting, enters in isocon, mixes with gas phase, eject current equalizer by overfall.
The above is only the preferred embodiment of the present invention, it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can do the improvement of some applicable actual conditions to the technical scheme of invention.Therefore, protection scope of the present invention is not limited thereto, and those of skill in the art are any to be included within scope based on non-material change in technical solution of the present invention.
Claims (7)
1. a gas-liquid current equalizer, is applicable to the vertical wound tube heat exchanger of plural serial stage, it is characterized in that:
It comprises a core cylinder; The sidewall of described core cylinder is provided with at least 1 gas-liquid two-phase import and at least 1 gaseous phase outlet, and described gas-liquid two-phase import and described gaseous phase outlet are for being oppositely arranged;
Be provided with a deflection plate in the cavity of described core cylinder, and described deflection plate is located between described gas-liquid two-phase import and described gaseous phase outlet;
Be provided with a disk in the bottom of described deflection plate in the cavity of described core cylinder, described disk is arranged along the radial direction of described core cylinder, and and be sealed and matched between described core cylinder;
Along described core drum outer wall be circumferentially provided with several spray porous plate, described spray porous plate is a hollow sheeting; Described spray porous plate runs through several isocons are set, and described isocon extends from the two ends of described spray porous plate;
Described isocon is provided with the gap and overfall that extend along its length, and described gap is located in the cavity of described spray porous plate, and described overfall is positioned at the top of described spray porous plate;
The bottom of described disk and described spray porous plate is positioned in same level, and described spray porous plate is provided with fluid inlet towards an end face of described core cylinder and the sidewall of corresponding described core cylinder.
2. gas-liquid current equalizer according to claim 1, is characterized in that: described deflection plate is made up of orthogonal plate.
3. gas-liquid current equalizer according to claim 1, is characterized in that: be provided with spacing between described spray porous plate, and is provided with dividing plate between adjacent described spray porous plate, and described dividing plate is wound around tube bank by one to be run through.
4. gas-liquid current equalizer according to claim 3, is characterized in that: alternately evenly distributed between described spray porous plate and described dividing plate.
5. gas-liquid current equalizer according to claim 1, is characterized in that: be provided with spacing between described overfall and described spray porous plate.
6. gas-liquid current equalizer according to claim 1, is characterized in that: the height of described fluid inlet is identical with the height of described spray porous plate.
7. gas-liquid current equalizer according to claim 1, is characterized in that: described isocon is evenly arranged along described spray porous plate.
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| CN201410457967.2A CN104215114B (en) | 2014-09-10 | 2014-09-10 | Plural serial stage gas-liquid current equalizer |
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| CN104215114B true CN104215114B (en) | 2016-03-23 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105674773B (en) * | 2016-01-25 | 2019-03-26 | 牛玉振 | Coiled heat exchanger for LNG ice chest |
| CN105928270B (en) * | 2016-06-06 | 2018-12-28 | 大连冷冻机股份有限公司 | Vapor-liquid separation type dispenser |
| CN108097179B (en) * | 2016-11-25 | 2021-12-07 | 中国石油化工股份有限公司 | Grid type impact-reducing flow-equalizing disc |
| CN107726730B (en) * | 2017-10-25 | 2020-02-14 | 中石化广州工程有限公司 | Vertical liquefied natural gas recondenser |
| CN108050861A (en) * | 2017-11-01 | 2018-05-18 | 中石化广州工程有限公司 | A kind of liquefied natural gas gas-liquid uniform distributer |
| US11154793B2 (en) | 2018-03-28 | 2021-10-26 | Uop Llc | Apparatus for gas-liquid contacting |
| CN113280650B (en) * | 2021-07-22 | 2021-09-24 | 四川空分设备(集团)有限责任公司 | Gas-liquid two-phase fluid uniform distribution device |
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| DE102004040974A1 (en) * | 2004-08-24 | 2006-03-02 | Linde Ag | Coiled heat exchanger |
| CN103486897B (en) * | 2013-09-05 | 2015-06-17 | 中国海洋石油总公司 | Single-stage gas-liquid flow equalizer |
| CN203479136U (en) * | 2013-09-05 | 2014-03-12 | 中国海洋石油总公司 | Single-stage gas-liquid flow equalizer |
| CN204128425U (en) * | 2014-09-10 | 2015-01-28 | 中国海洋石油总公司 | A kind of plural serial stage gas-liquid current equalizer |
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Address after: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee after: CNOOC Gas & Power Group Patentee after: China Offshore Oil Group Co., Ltd. Address before: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee before: CNOOC Gas & Power Group Patentee before: China National Offshore Oil Corporation |