CN203389620U - Suction overflow combined gas-liquid distributor - Google Patents
Suction overflow combined gas-liquid distributor Download PDFInfo
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- CN203389620U CN203389620U CN201320302831.5U CN201320302831U CN203389620U CN 203389620 U CN203389620 U CN 203389620U CN 201320302831 U CN201320302831 U CN 201320302831U CN 203389620 U CN203389620 U CN 203389620U
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- liquid
- overflow
- bubble cap
- combined gas
- suction
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Abstract
The utility model discloses a suction overflow combined gas-liquid distributor, fort solving the problems in the prior art that the lower part of a bubble cap is blocked after solid impurities are accumulated in an upper part region of a distributor and therefore the amount of gas-liquid mixture flowing into the bubble cap is reduced and even the gas-liquid mixture cannot flow into the bubble cap. The suction overflow combined gas-liquid distributor is composed of an overflow pipe (6), a bubble cap (3), a downcomer (2) and a flow breaking plate (11), wherein an inlet (62) and an outlet (63) are formed in the overflow pipe (6), a tooth slit (32) is arranged at the bottom of the bubble cap (3), and the bubble cap (3) is connected with the overflow pipe (6); the downcomer (2) is provided with a downcome section (21) and a bottom outlet section (22), the downcomer (2) and the bubble cap (3) are fixedly connected by virtue of a connecting plate (4) and a fastener (5), the flow breaking plate (1) is arranged at the lower part of the downcomer (2), the flow breaking plate (1) comprises a center plate (11) and a connecting ring (12), and flow breaking holes (13) are formed in the center plate (11). The suction overflow combined gas-liquid distributor is mainly applied to a fixed bed reactor in the petroleum refining and chemical industry.
Description
Technical field
The utility model belongs to petrochemical industry, relates to the combined gas-liquid allotter of a kind of suction overflow used in a kind of fixed bed reactors.
Background technology
In the techniques such as hydrofinishing, hydrocracking, reactor inner member makes reactant fully contact and play an important role with catalyst.Wherein gas-liquid allotter is arranged on the porch of beds conventionally, is the crucial inner member of realizing logistics uniform distribution in hydrogenation reactor.The bad distribution of gas-liquid mixed logistics on beds can cause even short circuit of channel, reduces catalyst utilization, thereby causes bed hot-spot and coking to cause the too early inactivation of catalyst.Practice shows, by installing novel inner member, can improve the distribution of logistics in reactor.Domestic and international existing gas-liquid allotter has various structures, from it, to the effect of logistics, can be divided into overflow type, suction type and both mixed types.
Typical overflow type gas-liquid allotter is as US Patent No. 3524731, it discloses a kind of overflow type gas-liquid allotter, this overflow type gas-liquid allotter comprises length pipe distributor, when on the distribution plate of length pipe distributor, the height of liquid level surpasses the height of short tube, liquid phase is entered bed with regard to overflow, and gas phase enters bed with different routes through long tube.From structure and the job analysis of overflow type gas-liquid allotter, its main feature is relatively simple for structure, and Pressure Drop is little, is applicable to high viscosity medium.But when liquid phase flows out main body tube, drop is larger, even there is the center phenomenon of confluxing, operating flexibility is also less, harsher to the requirement of installation level.
Current domestic common employing suction type gas-liquid allotter, as US Patent No. 3218249, the distinguishing feature of the disclosed gas-liquid allotter of this technology is above main body tube, to be provided with the parts such as bubble cap, offers the slot of many generation swabbing actions that parallel to the axis in bubble cap bottom.Liquid level on distribution plate is during higher than bubble cap lower edge, and gas phase produces strong suction force in annular space between bubble cap and main body tube after by slot, liquid phase is sucked and be broken into droplet and for gas phase entrained into and out of main body tube.The overall co-ordination allocation performance of suction type distributor is better, but when commercial Application is overhauled, often can find on distributor that subregion piles up and have solid impurity, and bubble cap bottom is stopped up, and causes that logistics enters that bubble cap bottom space diminishes, skewness and bias current.
Chinese patent CN2757911Y discloses a kind of partial suction streams type gas-liquid allotter, this gas-liquid allotter is to consist of bubble cap, central tube, isocon and flanged plate, wherein bubble cap is the cylinder of the equal cloth seam in bottom, isocon top has rectangular strip seam, isocon bottom and the welding of central tube top journal stirrup, central tube bottom and flanged plate welding, bubble cap is fixed on the journal stirrup of central tube top by bubble cap fixed claw.Be primarily characterized in that this partial suction streams type gas-liquid allotter set up isocon on the basis of traditional suction type gas-liquid allotter structure, reducing the pressure drop of suction type gas-liquid allotter, improve aspect gas-liquid distribution effects and have certain effect.But this distributor is less to the dispersion area of gas-liquid mixed logistics, still cannot overcome the center phenomenon of confluxing completely.
Utility model content
The utility model is for existing suction type distributor, the more raw material of the composition of impure or easy coking to be divided the shortcomings such as the susceptible to plugging phenomenon of timing and provides a kind of suction overflow combined gas-liquid allotter.Use the utility model, the advantage of suction type and overflow type gas-liquid allotter can be concentrated in together, and there is the advantages such as Rong Gou space is large, allocation performance good, operating flexibility is large, the to a certain extent cycle of operation of extension reactor.
The utility model provides a kind of suction overflow combined gas-liquid allotter, it is characterized in that: the combined gas-liquid allotter of this suction overflow is comprised of overflow pipe, bubble cap, downspout and stream breaker, overflow pipe is provided with entrance and exit, bubble cap is cylinder type, downspout is by falling liquid section and outlet at bottom section forms, wherein overflow pipe is connected with bubble cap, bubble cap is fixedly connected with securing member by connecting plate with downspout, the bottom of downspout is provided with stream breaker, stream breaker comprises central plate and connecting ring, and central plate is provided with broken discharge orifice.
The further technical characterictic of the utility model is: described bubble cap is the cylinder that bottom even is arranged slot, and the shape of slot is selected from a kind of in triangle, trapezoidal, rectangle, spirality and semicircle or its in conjunction with shape, and overflow pipe is connected with bubble cap.
The further technical characterictic of the utility model is: described overflow pipe is the cylinder that a top diameter is equal to or less than base diameter.
The further technical characterictic of the utility model is: described overflow pipe top is provided with cover plate, and the shape of its cover plate can be writing board shape, taper seat shape or arc surface shape.
The further technical characterictic of the utility model is: the entrance of described overflow pipe is set to 2～8, along axis direction, distributes, and its shape is selected from one or more in triangle, trapezoidal, rectangle, circle and their combinations.
The further technical characterictic of the utility model is: described bubble cap comprises top board, top board be shaped as writing board shape, taper seat shape or arc surface shape, preferred taper seat shape.
The further technical characterictic of the utility model is: described downspout liquid section is fallen and outlet at bottom section removably connects.
The further technical characterictic of the utility model is: the liquid section of falling of described downspout is cylindrical shape, and outlet at bottom section surface is cylindrical shape, inner chamber from top to bottom by being inverted conical butt, cylindrical and conical butt three part bodies constitute.
The further technical characterictic of the utility model is: the shape of described broken discharge orifice can be semicircle and middle one or more in the abnormity of rectangle for circle, triangle, rectangle, semicircle, trapezoidal and two ends.
The further technical characterictic of the utility model is: the direction of the sectional area of described broken discharge orifice from the top of described central plate to bottom becomes large gradually.
The further technical characterictic of the utility model is: described connecting plate comprises vertical panel and gusset, and vertical panel is fixedly connected with the liquid section of falling of downspout, and gusset is fixedly connected with bubble cap top.
The further technical characterictic of the utility model is: the number of described connecting plate is 3～4.
The utility model is mainly used in the fixed bed reactors in petroleum refining and chemical industry, is applicable to the more occasion of impurity content composition higher or some easy coking in raw material.
The utility model compared with prior art has following beneficial effect: (1) is provided with entrance on overflow pipe, make a part of gas phase directly enter overflow pipe on the one hand, having reduced gas phase carries liquid phase and enters the pressure drop that downspout causes, on the other hand, when solid impurity stops up bubble cap bottom, liquid phase can enter overflow pipe from the bottom overflow of overflow pipe entrance, and gas phase enters overflow pipe from the top of overflow pipe entrance, thereby realizes the mixed allocation of gas-liquid two-phase.So gas-liquid allotter of the present utility model integrates the advantage of suction type and overflow type gas-liquid allotter, has the advantages that pressure drop is little, operating flexibility is large.(2) inner chamber of downspout outlet at bottom section from top to bottom by being inverted conical butt, cylindrical and conical butt three part bodies constitute, thereby make gas-liquid mixed logistics at outlet at bottom section place, produce shrink melange effect, gas-liquid mixed logistics is simultaneously injected in and on stream breaker, is conducive to the atomization of logistics and is uniformly distributed.
By the drawings and specific embodiments, the utility model is described in further detail below, but does not limit scope of the present utility model.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation that aspirates the combined gas-liquid allotter of overflow of the utility model.
Fig. 2 is the structural representation of connecting plate in gas-liquid allotter shown in the utility model Fig. 1.
Fig. 3 is the structural representation of downspout outlet at bottom section in gas-liquid allotter shown in Fig. 1.
Fig. 4 is the central plate structural representation in gas-liquid allotter shown in Fig. 1.
In Fig. 1, Fig. 2, Fig. 3 and Fig. 4, same reference numerals represents identical technical characterictic.
Reference numeral shown in figure is:
1-stream breaker, 2-downspout, 3-bubble cap, 4-connecting plate, 5-securing member, 6-overflow pipe, 7-tray deck, 11-central plate, 12-connecting ring, liquid section falls in 21-, 22-outlet at bottom section, 31-top board, 32-slot, 41-vertical panel, 42-gusset, 61-cover plate, 62-entrance, 63-outlet.
The specific embodiment
As shown in Figure 1, the combined gas-liquid allotter of a kind of suction overflow of the present utility model (referred to as distributor), is coaxially provided with overflow pipe 6, bubble cap 3, downspout 2 and stream breaker 1.Overflow pipe 6 is provided with cover plate 61, entrance 62 and exports 63.The solid slab that cover plate 61 is not perforate, its effect is to prevent that the gas-liquid two-phase flowing from directly entering in overflow pipe 6 from top to bottom, the shape of cover plate 61 can be writing board shape, taper seat shape or arc surface shape, is generally the top that is welded in overflow pipe 6.Cover plate shown in Fig. 1 61 be shaped as taper seat shape, such shape is in order to strengthen the cushioning effect to gas-liquid, makes the liquid level held stationary on distribution plate.Bubble cap 3 is the cylinder of the uniform slot 32 in bottom, and forms annular space between downspout 2.Downspout 2 is by falling liquid section 21 and outlet at bottom section 22 forms, and downspout 2 is fixedly connected with bubble cap 3 with securing member 5 by connecting plate 4.Outlet at bottom section 22 places are provided with stream breaker 1, and stream breaker 1 comprises central plate 11 and connecting ring 12, and central plate 11 is provided with broken discharge orifice 13, and central plate 1 is fixed on by connecting ring 12 in the outlet at bottom section 22 of downspout 2 (being preferably threaded).
Referring to Fig. 1, bubble cap 3 comprises top board 31, top board 31 be shaped as writing board shape, taper seat shape or arc surface shape, preferred taper seat shape, can prevent from directly by entrance 62, entering overflow pipe 6 after liquid phase from top to down from accumulating on top board 31 like this.Bubble cap 3 bottoms are evenly provided with slot 32, and its shape is selected from a kind of in triangle, trapezoidal, rectangle, spirality and semicircle or its in conjunction with shape, and being shaped as of slot shown in Fig. 1 32 is triangular shaped.
Connecting plate 4 can be fixed on bubble cap 3 downspout 2 tops.Referring to Fig. 1 and Fig. 2, preferred version of the present utility model is: connecting plate 4 comprises vertical panel 41 and gusset 42, and vertical panel 41 is fixedly connected with (such as adopting the methods such as welding) with the liquid section 21 of falling of downspout 2, and gusset 42 is fixedly connected with top board 31.Preferably, the number of connecting plate 4 is 3～4, on top board 31 and gusset 42, establishes installing hole, and securing member 5 carries out fastening through the installing hole on top board 31 and gusset 42, and securing member 5 can be the conventional securing members such as bolt and nut and clamp.
Referring to Fig. 1 and Fig. 3, downspout 2 is by falling liquid section 21 and outlet at bottom section 22 forms, and falls liquid section 21 and outlet at bottom section 22 removably connect (being preferably threaded).The liquid section 21 of falling of downspout 2 is cylindrical shape.Outlet at bottom section 22 surfaces of downspout 2 are cylindrical shape, inner chamber from top to bottom by being inverted conical butt, cylindrical and conical butt three part bodies constitute, can make gas-liquid mixture stream produce Venturi effect at outlet at bottom section 22 places, thereby the mixed effect of strengthening gas-liquid two-phase, the speed that can improve gas-liquid mixed logistics simultaneously, is ejected on stream breaker 1 it.
Referring to Fig. 4, stream breaker 1 comprises central plate 11 and connecting ring 12.On the central plate 11 of stream breaker 1, be distributed with broken discharge orifice 13, its shape can be semicircle and middle one or more in the abnormity of rectangle for circle, triangle, rectangle, semicircle, trapezoidal and two ends.The direction of the area of section of broken discharge orifice 13 from described central plate 11 top to bottom becomes large gradually, the logistics can high atomisation ejecting from downspout 2 outlet at bottom sections 22, and expand the dispersion area of the droplet after atomization, thereby improve the mixed distribution effect of gas-liquid two-phase.
Referring to Fig. 1, the combined gas-liquid allotter of this suction overflow in use, is placed in outlet at bottom section 22 in the perforate on tray deck 7, and liquid section 21 is fallen in dependence and connecting ring 12 is located and is fixed on tray deck 7.A plurality of gas-liquid allotters are installed on tray deck 7 on request, are formed gas-liquid partition tray.
Take below the combined gas-liquid allotter of suction overflow shown in Fig. 1 as example illustrates operation principle of the present utility model.Gas phase is divided into two-way and enters distributor: a part of gas phase enters overflow pipe 6 by the entrance 62 of overflow pipe 6, the suction of another part gas phase is carried liquid phase and from the annular space between bubble cap 3 and downspout 2, enter downspout 2 after the fragmentation of the slot 32 of bubble cap 3, the gas phase that cause enters from entrance 62 is substantially vertical with the flow direction of the gas-liquid mixed logistics entering from annular space, gas phase is at a high speed miscarried and is given birth to shearing force gas-liquid mixture, thereby can reach better mixed effect.Gas-liquid mixed logistics arrives outlet at bottom section 22 after falling the interior preliminary mixing of liquid section 21, because the flow velocity of the unexpected variation gas-liquid mixed logistics of runner increases, and be splashed on central plate 11, beds top below being distributed to after obtaining further broken atomization and disperse under the effect of central plate 11, to carry out catalytic hydrogenation reaction.
In the reactor of traditional installation suction type gas-liquid allotter, when in raw material, impurity content composition higher or some easy coking is more, after one period of running time, the annular space between bubble cap 3 and main body tube can reduce even to block, and causes device to be forced to stop work.But for the utility model, when gas phase, cannot aspirate and carry liquid phase while entering downspout 2, liquid phase can enter overflow pipe 6 from overflow pipe 6 entrance 62 bottom overflows, and gas phase enters overflow pipe 6 from overflow pipe 6 entrance 62 tops, thereby when improving gas-liquid two-phase mixed allocation effect, extended again the operation cycle of device.
Claims (13)
1. one kind is aspirated the combined gas-liquid allotter of overflow, it is characterized in that: this gas-liquid allotter is by overflow pipe (6), bubble cap (3), downspout (2) and stream breaker (1) form, overflow pipe (6) is provided with entrance (62) and outlet (63), bubble cap (3) is cylinder type, downspout (2) is by falling liquid section (21) and outlet at bottom section (22) forms, wherein overflow pipe (6) is connected with bubble cap (3), bubble cap (3) is fixedly connected with securing member (5) by connecting plate (4) with downspout (2), the bottom of downspout (2) is provided with stream breaker (1), stream breaker (1) comprises central plate (11) and connecting ring (12), central plate (11) is provided with broken discharge orifice (13).
2. the combined gas-liquid allotter of suction overflow according to claim 1, it is characterized in that: the cylinder of described bubble cap (3) a plurality of slots (32) for bottom even is furnished with, the welding of overflow pipe (6) and bubble cap (3), wherein slot (32) be shaped as a kind of in triangle, trapezoidal, rectangle, spirality and semicircle or it is in conjunction with shape.
3. the combined gas-liquid allotter of suction overflow according to claim 1, is characterized in that: overflow pipe (6) is the cylinder that a top diameter is equal to or less than base diameter.
4. according to the combined gas-liquid allotter of suction overflow described in claim 1 or 3, it is characterized in that: described overflow pipe (6) top is provided with cover plate (61), its cover plate (61) is writing board shape, taper seat shape or arc surface shape.
5. according to the combined gas-liquid allotter of suction overflow described in claim 1 or 3, it is characterized in that: at axis direction distribution 2～8 entrances (62) of described overflow pipe (6).
6. the combined gas-liquid allotter of suction overflow according to claim 5, is characterized in that: described entrance (62) be shaped as triangle, trapezoidal, rectangle, circle and their in conjunction with in more than one.
7. the combined gas-liquid allotter of suction overflow according to claim 1, is characterized in that: described bubble cap (3) comprises top board (31), top board (31) be shaped as writing board shape, taper seat shape or arc surface shape.
8. the combined gas-liquid allotter of suction overflow according to claim 1, is characterized in that: described downspout (2) liquid section (21) is fallen and outlet at bottom section (22) removably connects.
9. the combined gas-liquid allotter of suction overflow according to claim 8, is characterized in that: the liquid section (21) of falling of described downspout (2) is cylindrical shape; Outlet at bottom section (22) surface is cylindrical shape, inner chamber from top to bottom by being inverted conical butt, cylindrical and conical butt three part bodies constitute.
10. the combined gas-liquid allotter of suction overflow according to claim 1, is characterized in that: described broken discharge orifice (13) be shaped as circle, triangle, rectangle, semicircle and trapezoidal in more than one.
11. according to the combined gas-liquid allotter of suction overflow described in claim 1 or 10, it is characterized in that: the direction of the sectional area of described broken discharge orifice (13) from the top of described central plate (1) to bottom becomes large gradually.
The combined gas-liquid allotter of 12. suction overflow according to claim 1, it is characterized in that: described connecting plate (4) comprises vertical panel (41) and gusset (42), vertical panel (41) is fixedly connected with the liquid section (21) of falling of downspout (2), and gusset (42) is fixedly connected with bubble cap (3) top.
The combined gas-liquid allotter of 13. suction overflow according to claim 12, is characterized in that: the number of described connecting plate (4) is 3～4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320302831.5U CN203389620U (en) | 2013-05-22 | 2013-05-22 | Suction overflow combined gas-liquid distributor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320302831.5U CN203389620U (en) | 2013-05-22 | 2013-05-22 | Suction overflow combined gas-liquid distributor |
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| CN203389620U true CN203389620U (en) | 2014-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320302831.5U Expired - Lifetime CN203389620U (en) | 2013-05-22 | 2013-05-22 | Suction overflow combined gas-liquid distributor |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105327657A (en) * | 2014-08-11 | 2016-02-17 | 中石化洛阳工程有限公司 | Overflow-type gas-liquid distributor |
| CN105498642A (en) * | 2015-12-31 | 2016-04-20 | 兰州兰石集团有限公司 | Suction and overflow combined type gas and liquid separator |
| CN111998634A (en) * | 2020-08-31 | 2020-11-27 | 郑丹丹 | Bio-organic fertilizer apparatus for producing |
| CN112546967A (en) * | 2020-11-16 | 2021-03-26 | 中国科学院过程工程研究所 | Downcomer and suction type, overflow type and mixed type gas-liquid distributor |
-
2013
- 2013-05-22 CN CN201320302831.5U patent/CN203389620U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105327657A (en) * | 2014-08-11 | 2016-02-17 | 中石化洛阳工程有限公司 | Overflow-type gas-liquid distributor |
| CN105498642A (en) * | 2015-12-31 | 2016-04-20 | 兰州兰石集团有限公司 | Suction and overflow combined type gas and liquid separator |
| CN111998634A (en) * | 2020-08-31 | 2020-11-27 | 郑丹丹 | Bio-organic fertilizer apparatus for producing |
| CN112546967A (en) * | 2020-11-16 | 2021-03-26 | 中国科学院过程工程研究所 | Downcomer and suction type, overflow type and mixed type gas-liquid distributor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140115 |