CN208742529U - Gas-liquid allotter, gas-liquid distribution tray and hydrogenator - Google Patents

Abstract

This disclosure relates to a kind of gas-liquid allotter, gas-liquid distribution tray and hydrogenator.The gas-liquid allotter includes outer tube (4), inner tube (5), annular seal plate (3) and shutter (1)；The outer tube spacer sleeve is set to that said inner tube is outer to form annular space, and the tip edge of the outer tube and inner tube is tightly connected by the annular seal plate to close the annular space；Said inner tube top end opening, bottom end closure, the shutter are arranged at intervals above said inner tube and cover the top end opening of said inner tube；The outer tube bottom end opening is formed with the first aperture (6) with forming stream outlet in said inner tube, and the second aperture (8) are formed on the tube wall of the outer tube；Spoiler (9) are equipped in the annular space, the spoiler is located at below second aperture.The gas-liquid allotter of the disclosure and the operating flexibility of distribution tray are big, and flow influenced by tower tray liquid level it is smaller.

Description

Gas-liquid allotter, gas-liquid distribution tray and hydrogenator

Technical field

This disclosure relates to the original allocation or redistribution device of the gas-liquid phase fluid of a kind of chemical industry and refining art, more specifically Ground, gas-liquid allotter, gas-liquid distribution tray and the hydrogenator being related in a kind of hydrogenator.

Background technique

In petroleum refining and chemical industry, reaction field, often it is related to a large amount of gas-liquid-solid reaction, this will be related to fluid Spatial and temporal distributions, especially in fixed bed reactors, distribution of fluid when by catalyst bed is that influence catalyst anti- Answer activity, bed pressure drop, liquid hold-up and the key parameter of liquid phase residence time.Therefore suitable fluid mixed allocation is just It is particularly significant.In the specific industrial production of bavin gasoline hydrogenation, lube oil hydrogenation such as in petroleum refining, good gas is needed The distribution of liquid phase fluid, to realize good liquid phase distribution.And this initial or reallocation, need excellent flow distribution Device.Excellent fluid distribution, can significantly improve the utilization rate of catalyst, improve the yield of product, effectively extension device Cycle of operation etc..One excellent flow distribution device should meet following condition: (1) in a biggish liquid phase object It is capable of providing in material operation range of flow and gives catalyst bed uniform fluid distribution；(2) have to the levelness of distribution tray There is preferable repellence, i.e. flow is influenced to want small by the liquid level on tower tray；(3) have good fluid spray angle with most Big degree reduces the catalyst bed layer height for dispersing radially further.Therefore, to fully take into account in the design it is above-mentioned because The influence of element.

CN206121715 U discloses a kind of novel gas-liquid allotter, passes through the ingehious design between outer tube and inner tube Gas-liquid two-phase is enabled to effectively to be distributed, thus solve the problems, such as that flow is affected by tower tray liquid level, but One of the patent is the disadvantage is that operating flexibility is small, and under big flow, the effect of distributor is fine, but under small flow, distributor Effect may be limited, while the distributor distribute when, it is possible to can liquid be splashed into inner tube.

CN201959779A discloses a kind of improvement bubble cap distributor.By increasing fluid diffused component in bottom, centainly Degree improves single distributor distributing uniformity, but the shortcomings that distributor be not suitable for high gas phase loading condiction, and by Tower tray liquid level is affected.

CN200963585A discloses a kind of suction type distributor, is mainly made of bubble cap, downspout, stream breaker.Bubble cap Stitched using improved spiral shape item so that fluid can preferable mixed distribution inside it, distributed with traditional bubble cap Device is compared, and the distributing uniformity of single distributor is optimized, and improves the excessive problem of radial distribution peak value.But the disadvantage is that: The performance of the liquid level meeting significant impact distributor on tower tray, to influence the operating flexibility of reactor.

US3218249 discloses a kind of bubble cap distribution tray, and distributor is made of several downspouts and bubble cap.This distribution The major defect of device is very sensitive to the liquid level variation on tower tray, this is particularly evident under high gas phase loading condiction.

US5158714 discloses a kind of modified bubble cap distributor, mainly includes bubble cap, downspout and connecting rod.This Kind distributor realizes the dispersion of liquid by using interior inlay fluid diffuser, to improve the liquid phase office of each export distributor Portion's distributing uniformity, but due to the presence of interior inlay fluid diffuser, the friction pressure loss of gas-liquid two-phase fluid increases in downspout Greatly, liquid phase flow in single distributor is caused to be affected by tower tray liquid level, to affect the operating characteristics of distributor.

Though there are still flows in conclusion these distributors improve the uneven problem of fluid distribution to a certain extent It is affected by tower tray liquid level, the problems such as operating flexibility is small or pressure drop is big.

Utility model content

Purpose of this disclosure is to provide a kind of gas-liquid allotters, and the gas-liquid allotter operating flexibility is big, and flow is by tower tray Liquid level influences smaller.

To achieve the goals above, disclosure first aspect provides a kind of gas-liquid allotter, including outer tube, inner tube, annular Sealing plate and shutter；It is outer to form annular space, the top side of the outer tube and inner tube that the outer tube spacer sleeve is set to said inner tube Edge is tightly connected by the annular seal plate to close the annular space；Said inner tube top end opening, bottom end closure, it is described to block Plate is arranged at intervals above said inner tube and covers the top end opening of said inner tube；The outer tube bottom end opening is flowed out with formation Mouthful, it is formed with the first aperture in said inner tube, the second aperture is formed on the tube wall of the outer tube；Flow-disturbing is equipped in the annular space Plate, the spoiler are located at below second aperture.

Optionally, the spoiler is formed as being fixed on the arc panel on the inside of the outer tube, the plate face water of the arc panel Flat or arc panel interior edge tilts down；Third aperture is formed on the spoiler.

Optionally, multiple spoilers are equipped in the annular space, multiple spoilers were located at sustained height and in week To being uniformly distributed, each spoiler is equipped with 3~6 third apertures.

Optionally, the outer tube, said inner tube and shutter coaxial arrangement.

Optionally, the shutter includes round plate and the annular slab for being connected to the round plate edge, the ring The outer of shape plate tilts down the radial outside for extending to the outer tube；The outer of the annular slab is diametrically greater than said inner tube Diameter, and the outer of the annular slab is higher than the top of the outer tube；The shutter passes through axially extending connecting rod and institute Annular seal plate is stated to be connected.

Optionally, first aperture is higher than second aperture.

Optionally, 2~8 second apertures are formed on the outer tube, all second apertures are uniformly distributed in On the circumference of the outer tube of sustained height.

Optionally, there are gaps for the bottom end of said inner tube and the bottom end of outer tube place interplanar.

Disclosure second aspect provides a kind of gas-liquid distribution tray, including described in tower tray and multiple disclosure first aspects Gas-liquid allotter is uniformly distributed multiple apertures, the outer tube of each aperture and the gas-liquid allotter on the tower tray Bottom edge be tightly connected.

The disclosure third aspect provides a kind of hydrogenator, including gas-liquid allotter described in disclosure first aspect or Gas-liquid distribution tray described in disclosure second aspect.

Through the above technical solutions, the gas-liquid allotter of the disclosure passes through setting internal and external casing structure, so that gas-liquid two-phase Logistics can be mixed by the annular space that different runner flows between inner and outer pipes respectively, and setting spoiler can be into annular space The disturbance and mixing of one step reinforcement fluid；The variation of annular space and outlet at bottom sectional area, which can make fluid flow rate suddenly, to be reduced, shape At atomized drop, to strengthen the aerosol dispersion to liquid phase.The operating flexibility of the gas-liquid allotter and distribution tray is big, and flow It is influenced by tower tray liquid level smaller.

Other feature and advantage of the disclosure will the following detailed description will be given in the detailed implementation section.

Detailed description of the invention

Attached drawing is and to constitute part of specification for providing further understanding of the disclosure, with following tool Body embodiment is used to explain the disclosure together, but does not constitute the limitation to the disclosure.In the accompanying drawings:

Fig. 1 is a kind of structural schematic diagram of specific embodiment of the gas-liquid allotter of the disclosure.

Fig. 2 is a kind of top view of the spoiler of specific embodiment of the gas-liquid allotter of the disclosure.

Description of symbols

1 shutter, 2 connecting rod

3 annular seal plate, 4 outer tube

5 inner tube, 6 first aperture

7 circular seal plate, 8 second aperture

9 spoiler, 10 third aperture

Specific embodiment

It is described in detail below in conjunction with specific embodiment of the attached drawing to the disclosure.It should be understood that this place is retouched The specific embodiment stated is only used for describing and explaining the disclosure, is not limited to the disclosure.

In the disclosure, in the absence of explanation to the contrary, the noun of locality used such as " upper and lower " typically refers to device and exists It is upper and lower under normal operating condition, specifically refer to the page of attached drawing 1." inside and outside " is the profile for device itself For.

As shown in Figure 1, disclosure first aspect provides a kind of gas-liquid allotter, including outer tube 4, inner tube 5, annular seal plate 3 and shutter 1；4 spacer sleeve of outer tube is set to that inner tube 5 is outer to form annular space, and the tip edge of outer tube 4 and inner tube 5 is close by annular Sealing plate 3 is tightly connected to close annular space；5 top end opening of inner tube, bottom end closure, shutter 1 are arranged at intervals at 5 top of inner tube and cover The top end opening of lid inner tube；4 bottom end opening of outer tube is formed with the first aperture 6, the pipe of outer tube 4 to form stream outlet in inner tube 5 The second aperture 8 is formed on wall；Spoiler 9 is equipped in annular space, spoiler 9 is located at 8 lower section of the second aperture.

The gas-liquid allotter of the disclosure enables gas-liquid two-phase logistics respectively by or not setting internal and external casing structure The annular space that same runner flows between inner and outer pipes is mixed, and setting spoiler can further strengthen the disturbance of fluid in annular space And mixing；The variation of annular space and outlet at bottom sectional area, which can make fluid flow rate suddenly, to be reduced, and atomized drop is formed, to strengthen To the aerosol dispersion of liquid phase.When the gas-liquid allotter is used in gas-liquid distribution tray, operating flexibility can be improved, reduce tower tray Influence of the liquid level to distributor flow.

According to the disclosure, what the shape of spoiler 9 can be conventional for this field, as long as can open from second on outer tube The fluid that hole 8 flows into plays perturbation action, such as can be for semicircular plate, rectangular slab or around inner wall one week of outer tube 4 Annular slab etc..Spoiler 9 can be one or more, and multiple spoilers can be uniformly distributed around the inner wall of outer tube 4.Spoiler 9 Plate face can horizontally extending or plate face extending direction horizontal by certain angle, such as in the folder less than 50 ° Angle.

In a kind of specific embodiment of the disclosure, in order to further increase the disturbance effect to fluid, promote gas-liquid Mixing, as shown in Fig. 2, spoiler 9 can be formed as being fixed on the arc panel of 4 inside of outer tube, arc panel may include 1 or more It is a, preferably 2~6；The plate face of arc panel can be tilted down with the interior edge of horizontal extension or arc panel, and inclination angle is preferably 30~ 40°；Further, in order to promote gas-liquid two-phase hybrid perturbation in annular space, it could be formed with third aperture 10 on spoiler 9.Often The number and size of third aperture 10 are unlimited on block spoiler, can be 1~10, preferably 3~6, third aperture 10 Diameter can be 1~5mm, preferably 2~3mm.

In the embodiment that spoiler 9 is formed as arc panel shown in Fig. 2, in order to improve fluid hybrid perturbation effect, Promote gas-liquid mixed distribution, further, multiple spoilers 9 can be equipped in annular space, multiple spoilers 9 can be located at same height It spends and is uniformly distributed in the circumferential direction of outer tube wall, each spoiler 9 can be equipped with 3~6 third apertures 10 above.

In order to guarantee that fluid flow is evenly distributed in gas-liquid allotter, in a kind of specific embodiment of the disclosure, such as Shown in Fig. 1, outer tube 4, inner tube 5 and shutter 1 can be coaxially disposed, to form uniform annular space.

According to the disclosure, the effect of shutter 1 is to accept gas-liquid two-phase logistics, and two-phase logistics is made to flow to periphery, liquid phase It flow to aggregation in distribution tray and annular space is entered by the second aperture 8 on outer tube, gas phase assembles above liquid phase and by interior tube top Portion's opening enters.Liquid phase stream enters inner tube by inner tube top opening in order to prevent, in a kind of specific embodiment of the disclosure In, as shown in Figure 1, shutter 1 may include round plate and the annular slab for being connected to round plate edge, the outer of annular slab The radial outside for extending to outer tube can be tilted down；Further, the outer of annular slab can diametrically be greater than the straight of inner tube 5 Diameter, to block the opening at the top of inner tube completely, and the outer of annular slab is preferably higher than the top of outer tube 4, in order to gaseous stream Enter inner tube 5 from top opening；Shutter 1 can be connected by axially extending connecting rod 2 with annular seal plate 3, with into one Step forms the gas phase path for flowing into inner tube 5.

According to the disclosure, after gaseous stream enters inner tube 5 from inner tube top opening, from the first aperture 6 stream in inner tube 5 Out, and with liquid phase stream mixing is contacted in annular space, is come into full contact with to guarantee in annular space gaseous stream with liquid phase stream, at this In a kind of disclosed embodiment, the first aperture 6 can be higher than the second aperture 8, so that the gaseous stream in inner tube 5 is flow to as early as possible It is contacted in annular space with liquid phase stream.

According to the disclosure, after liquid phase stream is assembled in distribution tray, flowed into annular space from the second aperture 8 on outer tube 4, In order to guarantee liquid phase stream uniform flow distribution, in a kind of specific embodiment of the disclosure, it could be formed with 2 on outer tube 4 ~8 the second apertures 8, all second apertures 8 may be uniformly distributed on the circumference of outer tube 4 of sustained height.

According to the disclosure, the size of each component can change in a big way in gas-liquid mixed distributor, can basis Logistics type and reaction require to be adjusted, and the disclosure does not specially require.Wherein, the first aperture 6 and second on inner and outer pipes The size and shape of aperture 8 are also without particular/special requirement.Preferably, the first aperture 6 can be formed as rectangular opening, the second aperture 8 It can be formed as circular opening；It is further preferred that the width of rectangular opening can be 8~10mm, axial length can be 12~20mm, the diameter of the second aperture can be 6~10mm, preferably 6~8mm.

According to the disclosure, liquid phase stream and gaseous stream are come into full contact with after mixing in annular space to lower motion, this mistake Cheng Zhong, in order to further strengthen gas-liquid two-phase dispersion effect, in a kind of specific embodiment of the disclosure, as shown in Figure 1, interior The bottom end of pipe 5 can there are gaps with interplanar where the bottom end of outer tube 4, in this embodiment, the mixture in annular space When stream moves downwardly to gap location, since flow section becomes larger suddenly, fluid flow rate can reduce suddenly, to form atomized liquid Drop, enhances gas-liquid two-phase dispersion effect, it is preferable that the bottom end of inner tube 5 can be sealed by circular seal plate 7；Further, In order to guarantee to be formed logistics mixing annular space, the bottom end of inner tube 5 can be located at the lower section of the second aperture 8, the i.e. bottom position of inner tube 5 Lower than the second aperture 8.In the other embodiments of the disclosure, inner tube 5 can be concordant with the bottom end of outer tube 4.

Disclosure second aspect provides a kind of gas-liquid distribution tray, the gas-liquid including tower tray and multiple disclosure first aspects Distributor, is uniformly distributed multiple apertures on tower tray, and the bottom edge of the outer tube of each aperture and gas-liquid allotter is tightly connected.

The disclosure third aspect provides a kind of hydrogenator, gas-liquid allotter or this public affairs including disclosure first aspect Open the gas-liquid distribution tray of second aspect.

The hydrogenator of the disclosure is equipped with above-mentioned gas-liquid distribution tray above catalyst bed, is conducive to reactor Interior logistics can provide uniform fluid to catalyst bed and distribute in the radial dispersion of catalyst bed, the operation of reactor It is elastic big.

In a kind of specific embodiment of the disclosure, as shown in Figure 1, under working condition, gas-liquid of the logistics in the disclosure Mobility status inside distributor, gas-liquid distribution tray and hydrogenator may include:

Gas-liquid two-phase logistics is flow on shutter above gas-liquid mixed distributor, and is tilted down along shutter edge Annular slab flow around.Subsequent gas-liquid two-phase separates, liquid phase since gravity is gradually assembled in distribution tray, Gas phase is assembled above liquid phase.When the liquid level in distribution tray reaches the height of the second aperture 8, liquid phase is by the second aperture 8 enter in outer tube 4, and gas phase enters inner tube 5 along lesser 5 top opening of inner tube of resistance at this time, and the first aperture in inner tube 5 6 flow in annular space, and generate in annular space with the liquid phase stream for flowing into outer tube 4 by the second aperture 8 and be vigorously mixed and disturb, and lead to The outlet at bottom for crossing outer tube 4 flows in underlying catalyst bed.During this, swiftly flowing gas can be the same as low speeds flow Liquid interaction, and the fluid that syn-collision returns on arc panel carry out adequately mixing agitation, work of the liquid in aerodynamic force It is broken for droplet under and is atomized, enhances gas-liquid two-phase dispersion effect.

The preferred embodiment of the disclosure is described in detail in conjunction with attached drawing above, still, the disclosure is not limited to above-mentioned reality The detail in mode is applied, in the range of the technology design of the disclosure, a variety of letters can be carried out to the technical solution of the disclosure Monotropic type, these simple variants belong to the protection scope of the disclosure.

It is further to note that specific technical features described in the above specific embodiments, in not lance In the case where shield, it can be combined in any appropriate way.In order to avoid unnecessary repetition, the disclosure to it is various can No further explanation will be given for the combination of energy.

In addition, any combination can also be carried out between a variety of different embodiments of the disclosure, as long as it is without prejudice to originally Disclosed thought equally should be considered as disclosure disclosure of that.

Claims (10)

1. a kind of gas-liquid allotter, which is characterized in that including outer tube (4), inner tube (5), annular seal plate (3) and shutter (1)； Outer tube (4) spacer sleeve is set to said inner tube (5) outside to form annular space, and the tip edge of the outer tube (4) and inner tube (5) is led to The annular seal plate (3) are crossed to be tightly connected to close the annular space；Said inner tube (5) top end opening, bottom end closure, the screening Baffle (1) is arranged at intervals above said inner tube (5) and covers the top end opening of said inner tube；Outer tube (4) bottom end opening It to form stream outlet, is formed in said inner tube (5) the first aperture (6), is formed with second on the tube wall of the outer tube (4) and opens Hole (8)；Spoiler (9) are equipped in the annular space, the spoiler (9) is located at below second aperture (8).

2. gas-liquid allotter according to claim 1, which is characterized in that the spoiler (9) is formed as being fixed on described Arc panel on the inside of outer tube (4), the plate face level of the arc panel or the interior edge of arc panel tilt down；The spoiler (9) On be formed with third aperture (10).

3. gas-liquid allotter according to claim 2, which is characterized in that be equipped with multiple spoilers in the annular space (9), multiple spoilers (9) are located at sustained height and are uniformly distributed circumferentially, and each spoiler (9) is equipped with 3~6 A third aperture (10).

4. gas-liquid allotter according to claim 1, which is characterized in that the outer tube (4), said inner tube (5) and described Shutter (1) coaxial arrangement.

5. gas-liquid allotter according to claim 1, which is characterized in that the shutter (1) includes round plate and company Be connected to the annular slab of the round plate edge, the outer of the annular slab tilt down extend to the outer tube diameter it is outside Side；The outer diameter for being diametrically greater than said inner tube (5) of the annular slab, and the outer of the annular slab is higher than the outer tube (4) top；The shutter (1) is connected by axially extending connecting rod (2) with the annular seal plate (3).

6. gas-liquid allotter according to claim 1, which is characterized in that first aperture (6) is higher than described second and opens Hole (8).

7. gas-liquid allotter according to claim 1, which is characterized in that be formed with described in 2~8 on the outer tube (4) Second aperture (8), all second apertures (8) are uniformly distributed on the circumference of the outer tube (4) of sustained height.

8. gas-liquid allotter according to claim 1, which is characterized in that the bottom end and the outer tube (4) of said inner tube (5) Bottom end where interplanar there are gaps.

9. a kind of gas-liquid distribution tray, which is characterized in that including described in any one of tower tray and multiple claims 1~8 Gas-liquid allotter is uniformly distributed multiple apertures, the outer tube of each aperture and the gas-liquid allotter on the tower tray (4) bottom edge is tightly connected.

10. a kind of hydrogenator, which is characterized in that including gas-liquid allotter described in any one of claim 1~8 or Gas-liquid distribution tray as claimed in claim 9.