CN206008666U - Tubular type gas-liquid allotter - Google Patents

Abstract

The utility model belongs to petroleum refining and technical field of chemical, is related to a kind of inner member for hydrogenation reactor, and in particular to a kind of tubular type gas-liquid allotter.The tubular type gas-liquid allotter that the utility model is provided, including main body tube, top cap, spout hole, orifice plate and stream breaker, the upper end of main body tube is provided with gas access, and the upper end of main body tube is connected with top cap, and the lower end of main body tube is connected with stream breaker；Spout hole is provided with the tube wall of main body tube, and main body tube interior lower end is provided with orifice plate, and spout hole and orifice plate are located between top cap and stream breaker.Development trend of the utility model according to hydrogenation reactor gas-liquid allotter, using the less tubular type gas-liquid allotter of size, in conjunction with Liquid Flow characteristic, develop top cap, main body tube and stream breaker to combine form, liquid phase diversification import, while increased the melange effect of orifice plate, it is possible to achieve gas-liquid is quickly uniform, layouting for unit area is more, and pressure drop is less.

Description

Tubular type gas-liquid allotter

Technical field

The utility model belongs to petroleum refining and field of chemical equipment, is related to a kind of inner member for hydrogenation reactor, In particular to a kind of tubular type gas-liquid allotter.

Background technology

At present, gas-liquid homogeneous media is assigned to by urging for lower section using gas-liquid partition tray all in fixed bed hydrogenation reactor On agent bed.Multiple gas-liquid allotters of the gas-liquid partition tray by distribution plate and on distribution plate are constituted, gas-liquid therein point Orchestration is an important component.In fixed bed hydrogenation reactor, the gas-liquid allocation performance of gas-liquid allotter directly affects reaction Thing and the uniformity of catalyst contact time, the degree for affecting catalyst surface to be soaked by liquid phase.And gas-liquid skewness can shape Into the phenomenon such as bias current and partial short-circuit, the Temperature Distribution and product quality of beds is eventually affected.Current hydrogen addition technology The direction that forward reaction device maximizes, product becomes more meticulous and cleans is developed, while developing advanced catalysts and catalyst grade Match somebody with somebody technology, therefore the quick uniform importance of gas-liquid just more project.

Existing gas-liquid allotter can be divided three classes in the way of liquid phase enters gas-liquid allotter：Overflow type, suction type and The two mixed type.Suction type distributor mainly steeps cap-shaped structure distributor, by swabbing action of the gas at bubble cap bar seam, Bring liquid into central tube, gas-liquid mixes strongly in central tube.Bubble cap type main distributor structure includes the bubble cap being coaxially disposed And central tube, partly increase stream breaker, hold the parts such as dirty structure, a part of attachment structure for adding clamp using central tube, one Divide and adopt check ring joint structure.Suction type gas-liquid allotter is less due to liquid phase circulation area, exist distributor pressure drop larger and The problems such as operating flexibility is relatively low.Using main body tubular construction, it is little to be mainly characterized by size, unit area etc. for overflow type gas-liquid allotter Effect distributor number is more, and pressure drop is little, it is adaptable to high viscosity medium, has the disadvantage that the requirement to distribution plate installation level is harsher.

United States Patent (USP) US3524731 discloses a kind of long short tube gas-liquid allotter and just belongs to overflow type distributor；From local See, gas-liquid maldistribution, but the combination by multipair long short tube on whole gas-liquid partition tray, gas-liquid two-phase can substantially be realized It is uniformly distributed.The TECHNIP types that used on commercial plant later, SHELL types distributor are all overflow type distributors, longer short tube Distributor has larger improvement, and general principle is consistent.On this basis, Chinese patent CN200520032630.3 discloses a kind of overflowing Flow pattern distributor, its are V-type opening gas-liquid distributor, are more suitable for using in large-scale hydrogenation reactor；Chinese patent CN201220737754.1 discloses a kind of overflow type distributor, and which is overflow-injection cast gas-liquid allotter, and the above is overflow The gas-liquid allotter basic structure of flow structure and operation principle are all similar, simply each with oneself advantage and use model Enclose, the partial structurtes such as stream breaker and spout hole are slightly different, but all generally existing gas-liquid distribution not enough uniformly, in easily occurring The heart confluxes, the problems such as unit area layouts few, pressure drop is relatively large.

Utility model content

In view of this, the purpose of this utility model is to provide a kind of tubular type gas-liquid allotter, and which can overcome gas The phenomenon that liquid medium confluxes, realizes that gas-liquid is rapidly and uniformly distributed, and unit area is layouted many, and pressure drop is little.

For achieving the above object, the technical solution adopted in the utility model is：

A kind of tubular type gas-liquid allotter, including main body tube, top cap, spout hole, orifice plate and stream breaker, the main body tube upper End is provided with gas access, and the upper end of the main body tube is connected with the top cap, and the lower end of the main body tube is broken with described Stream plate is connected；

The spout hole is provided with the tube wall of the main body tube, and the main body tube interior lower end is provided with the orifice plate, and The spout hole and orifice plate are located between the top cap and stream breaker.

In alternative of the present utility model, also include that overflow launder, the overflow launder are arranged on the upper of the spout hole End.

In alternative of the present utility model, the floor projection of the top cap be circular arc, ellipse arc, triangle or Person is trapezoidal.

In alternative of the present utility model, also include that connection leg and lower connection leg, the top cap pass through on described Connection leg is connected with the main body tube, and the stream breaker is connected with the main body tube by the lower connection leg.

In alternative of the present utility model, the main body tube top side wall slot opening, the opening are square, lead to Cross the part that grooving stays and form the upper connection leg.

In alternative of the present utility model, the upper connection leg is two, and the lower connection leg is three.

In alternative of the present utility model, the spout hole is arranged in the middle part of the main body tube, the spout hole bag Include spaced first spout hole, the second spout hole and the 3rd spout hole successively from top to bottom.

In alternative of the present utility model, the aperture of first spout hole, the second spout hole and the 3rd spout hole Gradually increase；

It is in 90 degree of arranged crosswises or equidirectional arrangement between first spout hole and the second spout hole；Second overflow It is in 90 degree of arranged crosswises or equidirectional arrangement between tri- spout holes of Kong Yu；Between 3rd spout hole and the first spout hole it is in 90 degree of arranged crosswises or equidirectional arrangement.

In alternative of the present utility model, the orifice plate is integrally formed with the main body tube, or the orifice plate list Solely make and be inserted into inside main body tube and be connected with main body tube.

Further, the orifice plate minimum diameter is the 1/4～2/3 of the main body bore.

In alternative of the present utility model, the stream breaker is equably provided with multiple rectangle slots for circumferential and middle part Circular flat board.

In alternative of the present utility model, the main body tube is pipe, and upper lower open mouth, wall thickness are 2～6mm.

In alternative of the present utility model, the spout hole is the circular hole that opens on the main body tube side wall.

In alternative of the present utility model, the upper and lower two parts internal diameter of the main body tube is identical, and the latter half external diameter is little In top half 1～2mm of external diameter, an annular boss is formed.

In alternative of the present utility model, the main body tube is with the connected mode of stream breaker, top cap and orifice plate Welding.

Compared with prior art, the beneficial effects of the utility model are：

1st, development trend of the utility model according to hydrogenation reactor gas-liquid allotter, using the less tubular type knot of size Structure, and Liquid Flow characteristic is combined, by the way of top cap, main body tube and stream breaker combine, while increased orifice plate Melange effect, realizes that fluid inlet diversification, gas-liquid medium rapidly and uniformly can be distributed, and layouting for unit area is more, pressure drop Little.

2nd, the utility model arranges top cap on the top of main body tube, and middle and upper part arranges overflow launder, and middle part arranges three layers of overflow Hole, middle and lower part arrange orifice plate, and bottom arranges sawtooth porous type stream breaker, its gas-liquid runner by improving pipe distributor Structure and layout, it is ensured that being uniformly distributed for gas-liquid phase medium, substantially reduce distributor pressure drop, improve operating flexibility and use model Enclose；Cause high-temperature material and catalyst uniform contact simultaneously, reduce the temperature difference in hydrogenation reactor bed cross section, improve oil product Quality, reduces production cost.

For enabling above-mentioned purpose of the present utility model, feature and advantage to become apparent, preferred embodiment cited below particularly, and Accompanying drawing appended by coordinating, is described in detail below.

Description of the drawings

In order to be illustrated more clearly that the utility model specific embodiment or technical scheme of the prior art, below will be right Needed for specific embodiment or description of the prior art, accompanying drawing to be used is briefly described, it should be apparent that, describe below In accompanying drawing be some embodiments of the present utility model, for those of ordinary skill in the art, do not paying creativeness On the premise of work, can be with according to these other accompanying drawings of accompanying drawings acquisition.

The sectional view of the tubular type gas-liquid allotter front view that Fig. 1 is provided for the utility model；

Fig. 2 is Section A-A schematic diagram in Fig. 1；

Fig. 3 is section B-B schematic diagram in Fig. 1；

Fig. 4 is C-C schematic cross-sections in Fig. 1；

Fig. 5 is D-D schematic cross-sections in Fig. 1；

Fig. 6 is E-E schematic cross-sections in Fig. 1.

Reference：

1- stream breakers；101- circumference rectangle slots；Rectangle slot in the middle part of 102-；

2- top caps；

3- main body tubes；Connection leg under 301-；The upper connection legs of 302-；

4- overflow launders；5- spout holes；

The first spout holes of 501-；The second spout holes of 502-；The 3rd spout holes of 503-；

6- orifice plates.

Specific embodiment

Purpose, technical scheme and advantage for making the utility model embodiment is clearer, new below in conjunction with this practicality Accompanying drawing in type embodiment, is clearly and completely described to the technical scheme in the utility model embodiment, it is clear that described Embodiment be only a part of embodiment of the utility model, rather than whole embodiment.Generally described in accompanying drawing herein Can arrange and design with a variety of configurations with the component of the utility model embodiment for illustrating.Therefore, below to The detailed description of the embodiment of the present utility model provided in accompanying drawing is not intended to limit claimed model of the present utility model Enclose, but be merely representative of selected embodiment of the present utility model.Embodiment of the present utility model is based on, those skilled in the art exist The every other embodiment obtained on the premise of not making creative work, belongs to the scope of the utility model protection.

In description of the present utility model, it should be noted that term " " center ", " on ", D score, "left", "right", " perpendicular Directly ", the orientation of instruction such as " level ", " interior ", " outward " or position relationship are based on orientation shown in the drawings or position relationship, are only For the ease of describe the utility model and simplify description, rather than indicate or hint indication device or element must have specific Orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.Additionally, term " the One ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that indicating or hint relative importance.

In description of the present utility model, in addition it is also necessary to explanation, unless otherwise clearly defined and limited, term " peace Dress ", " being connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or integratedly Connection；Can be mechanically connected, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition Concrete meaning of the language in the utility model.

With reference to embodiment and specific embodiment, the utility model is described in more detail.

Embodiment

The sectional view of the tubular type gas-liquid allotter front view that Fig. 1 is provided for the utility model, Fig. 2 is that Section A-A shows in Fig. 1 It is intended to, Fig. 3 is section B-B schematic diagram in Fig. 1, and Fig. 4 is C-C schematic cross-sections in Fig. 1, and Fig. 5 is D-D schematic cross-sections in Fig. 1, Fig. 6 is E-E schematic cross-sections in Fig. 1；As shown in Figures 1 to 6, the present embodiment provides a kind of tubular type gas-liquid allotter, including master Body pipe 3, top cap 2, spout hole 5, orifice plate 6 and stream breaker 1, also include overflow launder 4；Wherein, the upper end of main body tube 3 is provided with gas Entrance, and the upper end of main body tube 3 is connected with top cap 2, the lower end of main body tube 3 is connected with stream breaker 1；Pipe in main body tube 3 Wall is provided with spout hole 5, and 3 interior lower end of main body tube is provided with orifice plate 6, and spout hole 5 and orifice plate 6 be located at top cap 2 and stream breaker 1 it Between, overflow launder 4 is arranged on the upper end of spout hole 5.In the present embodiment, back cut openings, used as gas access.

The tubular type gas-liquid allotter that the present embodiment is provided possesses the design feature and operating characteristic of overflow type gas-liquid allotter, 3 top of main body tube is blocked by top cap 2, top sidewall grooving opening, middle and upper part grooving be overflow launder 4, middle part arrange spout hole 5, Middle and lower part arranges orifice plate 6, and lower end is connected with stream breaker 1, and reasonable in design reduces distributor pressure drop, has carried high operation bullet Property and use range, it is ensured that gas-liquid logistics uniform, make high-temperature material and catalyst uniform contact, reduce hydrogenation reactor bed The temperature difference in layer cross section, improves oil quality, reduces production cost.

In the present embodiment, top cap 2 is arc top cap 2, or the top cap 2 for other shapes such as tapers, its special shape Design be in order to form certain angle of inclination, be easy to liquid quickly to fall, without along 2 following table surface current of top cap to main body tube Inside 3.Top cap 2 is linked together by the remaining upper connection leg 302 of 3 grooving of main body tube and 3 upper end of main body tube.Arc top cap 2 Main Function be exactly to prevent liquid from entering from above main body tube 3, improve the ability that overflow-type gas-liquid allotter is evenly distributed, prevent The impact that only upper flow is caused to unevenness.

Main body tube 3 be pipe, lower open mouth on main body tube 3,2～6mm of wall thickness.3 top sidewall opening of main body tube is by grooving shape Into its basic configuration is square, and the tube wall for staying is used as the upper connection leg 302 being connected with top cap 2.3 top end opening of main body tube The passage of mainly gaseous stream, does not generally have liquid phase stream entrance.

In the present embodiment, upper body pipe 3 leaves a part by cutting and is used as upper connection leg 302, and width is generally 4- 20mm, quantity are two, positioned opposite, consistent with the orientation of the 3rd spout hole 503；The basic configuration of top sidewall opening is side Shape, cutting part of the main body tube 3 after cutting are generally two, positioned opposite, with the first spout hole 501 and the second overflow The orientation in hole 502 is consistent.

In order to easy for installation, main body tube about 3 two parts internal diameter identical, the latter half external diameter is less than top half external diameter 1 ～2mm, forms an annular boss.The concrete size of 3 times segment outer radius of main body tube is determined according to 3 wall thickness of main body tube.And overflow Formula distributor is higher to installation requirement, must assure that the machining accuracy and levelness of boss during installation, and boss structure on the one hand can So that distributor is accurately positioned, on the other hand manufacture is installed very convenient.Due to tubular type gas-liquid allotter simple structure, reliability Property high, need not be changed during maintenance substantially, therefore can not also set up boss, in the case where precision is ensured, directly will distribution Device is welded on distribution plate, it would however also be possible to employ other fixed forms.

Overflow launder 4 is located at the middle and upper part of main body tube 3, is obtained by grooving by main body tube 3, primarily to gas-liquid allotter Operating flexibility, when liquid measure is larger or spout hole 5 occur blocking in the case of, Partial Liquid Phase logistics can enter from overflow launder 4, Without there is unrestrained pipe phenomenon, ensure that distributor will not be completely ineffective, extends usage cycles to a certain extent.

Spout hole 5 is arranged in the middle part of main body tube 3, and which is the circular hole that 3 side wall of main body tube is opened, and arranges three layers and overflow in the present embodiment Discharge orifice 5, i.e. spaced first spout hole 501, the second spout hole 502 and the 3rd spout hole 503 successively from top to bottom.Its In, the second spout hole 502 and the 3rd spout hole 503 are main liquid phase stream passages, and the first spout hole 501 is acted primarily as is Booster action, it is ensured that in the case that other spout holes 5 or overflow launder 4 are blocked, be unlikely to the failure for causing gas-liquid allotter.Just When often working, the first spout hole 501 is still entering based on gaseous stream.

First spout hole 501, the second spout hole 502 and 503 structure of the 3rd spout hole are typically similar, size slightly difference, Aperture above is generally less than hole under footpath；It can be in 90 degree of arranged crosswises to install up and down, it is also possible to equidirectional arrangement, preferably 90 degree of arranged crosswises.

Orifice plate 6 is located at 3 middle and lower part of main body tube, as the liquid that the spout hole 5 of main body tube 3 is come in occurs substantial amounts of wall stream Phenomenon, is needed to be strengthened by the Venturi effect of orifice plate 6 and mix between gas-liquid, reduced liquid phase wall stream effect, realize the uniform of gas-liquid Distribution.

Orifice plate 6 is integrally formed with main body tube 3, or orifice plate 6 is fabricated separately and is inserted into inside main body tube 3 and main body tube 3 It is connected.Diameter at 6 minimum diameter of orifice plate is generally the 1/4～2/3 of 3 internal diameter of main body tube.

Stream breaker 1 is the circular flat board that periphery and center are equably provided with rectangle slot, including circumferential 101 He of rectangle slot Middle part rectangle slot 102.Slot quantity and layout according to technique it needs to be determined that, its base plate thickness is equal to 3 lower half of main body tube Point thickness (2～4mm), it is also possible to slightly difference；1 slot of stream breaker is primarily to reinforcing gas-liquid mixed and uniform.

In the present embodiment, three lower connection legs 301 are provided with, lower connection leg 301 is that 3 lower end of main body tube is stayed by cutting Part, three lower connection legs 301 are connected with stream breaker 1 in surrounding, from three connection legs to the stop of gas-liquid logistics relatively Little, it is easier to realize being uniformly distributed for gas-liquid.

In the present embodiment, using all adopting welding structure between main body tube 3 and stream breaker 1, top cap 2 and orifice plate 6, so as to Gas-liquid can be made preferably to be spread and be mixed, be rapidly distributed in whole reactor cross section, while pressure drop is less.

Operation principle of the present utility model is：During normal work, gas-liquid phase mixture stream gets off from reactor top, liquid Main body tube 3 is entered through the second spout hole 502 and the 3rd spout hole 503 mainly, and when liquid measure is larger, partially liq can be from the first overflow Hole 501 and overflow launder 4 enter main body tube 3, and gas is mainly directly entered main body tube 3 from 3 top of main body tube after 2 baffling of top cap, Gas-liquid logistics is flowed down in 3 internal impact collisional mixing of main body tube, after mixing through the orifice plate 6 of 3 bottom of main body tube, is touched with stream breaker 1 Hit, the stream breaker 1 with slot makes gas-liquid logistics be evenly distributed to beds.

In practical application, need to be provided with a number of overflow type tubular type gas-liquid allotter according to technique in distribution tray, Gaseous stream is uniformly distributed on beds.The tubular type gas-liquid allotter simple structure that the utility model is provided, surely Qualitative good, easy for installation, gas-liquid partition characteristic is good, and pressure drop is little, in petroleum refining and chemical industry fixed bed hydrogenation field using value Substantially.

Finally it should be noted that：Embodiment described above, specific embodiment only of the present utility model, in order to illustrate this The technical scheme of utility model, rather than a limitation, protection domain of the present utility model is not limited thereto, although with reference to aforementioned Embodiment has been described in detail to the utility model, it will be understood by those within the art that：Any it is familiar with this skill , in the technical scope that the utility model is disclosed, which still can be to the skill described in previous embodiment for the technical staff in art field Art scheme is modified or can readily occur in change, or carries out equivalent to which part technical characteristic；And these modifications, Change is replaced, and does not make the essence of appropriate technical solution depart from spirit and the model of the utility model embodiment technical scheme Enclose.Should all cover within protection domain of the present utility model.Therefore, protection domain of the present utility model should be wanted with the right The protection domain that asks is defined.

Claims (10)

1. a kind of tubular type gas-liquid allotter, it is characterised in that including main body tube, top cap, spout hole, orifice plate and stream breaker, described The upper end of main body tube is provided with gas access, and the upper end of the main body tube is connected with the top cap, under the main body tube End is connected with the stream breaker；

The spout hole is provided with the tube wall of the main body tube, and the main body tube interior lower end is provided with the orifice plate, and described Spout hole and orifice plate are located between the top cap and stream breaker.

2. tubular type gas-liquid allotter according to claim 1, it is characterised in that also include overflow launder, the overflow launder sets Put in the upper end of the spout hole.

3. tubular type gas-liquid allotter according to claim 1, it is characterised in that the floor projection of the top cap is circular arc Shape, ellipse arc, triangle or trapezoidal.

4. tubular type gas-liquid allotter according to claim 1, it is characterised in that also include connection leg and lower connection leg, The top cap is connected with the main body tube by the upper connection leg, and the stream breaker is by the lower connection leg and the main body Pipe connects.

5. tubular type gas-liquid allotter according to claim 4, it is characterised in that main body tube top side wall slot is opened Mouthful, the opening is square, forms the upper connection leg by the part that grooving is stayed.

6. tubular type gas-liquid allotter according to claim 4, it is characterised in that the upper connection leg is two, described under Connection leg is three.

7. tubular type gas-liquid allotter according to claim 1, it is characterised in that the spout hole is arranged on the main body tube Middle part, the spout hole include from top to bottom spaced first spout hole, the second spout hole and the 3rd spout hole successively.

8. tubular type gas-liquid allotter according to claim 7, it is characterised in that first spout hole, the second spout hole Gradually increase with the aperture of the 3rd spout hole；

It is in 90 degree of arranged crosswises or equidirectional arrangement between first spout hole and the second spout hole；Second spout hole with It is in 90 degree of arranged crosswises or equidirectional arrangement between 3rd spout hole；It is in 90 degree between 3rd spout hole and the first spout hole Arranged crosswise or equidirectional arrangement.

9. tubular type gas-liquid allotter according to claim 1, it is characterised in that the orifice plate and main body tube one into Type, or the orifice plate is fabricated separately and is inserted into inside main body tube and be connected with main body tube.

10. the tubular type gas-liquid allotter according to any one of claim 1～9, it is characterised in that the stream breaker is circumferential The circular flat board of multiple rectangle slots is equably provided with middle part.