CN215352064U

CN215352064U - Hypergravity rotating rectifying bed

Info

Publication number: CN215352064U
Application number: CN202120574425.9U
Authority: CN
Inventors: 应盛荣; 姜战; 应悦
Original assignee: Quzhou Dingsheng Chemical & Technology Co ltd
Current assignee: Quzhou Dingsheng Chemical & Technology Co ltd
Priority date: 2021-03-22
Filing date: 2021-03-22
Publication date: 2021-12-31
Anticipated expiration: 2031-03-22

Abstract

The utility model provides a supergravity rotary rectifying bed, which comprises: the device comprises a machine body, a power input device, a gas-liquid channel, a rotary tray and a mass transfer component; the rotary tray is arranged in the machine body, and the power input device drives the rotary tray to rotate; the gas-liquid channel penetrates through the rotary tray and the machine body; the mass transfer module comprises: a stuffing box, a liquid bearing disc and a liquid distributing disc; a stuffing box is arranged in the rotary tray, and the liquid bearing disc is arranged at the lower part of the stuffing box; the liquid bearing disc is connected with the gas-liquid channel, and the liquid distribution disc is arranged on the gas-liquid channel and communicated with the stuffing box; the rotating tray, the stuffing box and the power input device rotate synchronously; the gas-liquid channel and the liquid distribution disc are in a static state. When the rectifying bed is used, the intermediate shaft does not rotate, and the liquid distribution pipe is simpler and more efficient to arrange; the structure is reasonable in design, can facilitate multi-level stacking, and is quite easy and simple to increase the number of tower plates; the mass transfer adaptability is wide.

Description

Hypergravity rotating rectifying bed

Technical Field

The utility model relates to the technical field of rotating beds, in particular to a supergravity rotating rectifying bed.

Background

In the industrial production of chemical industry, materials, environmental protection, energy and the like, a large amount of towers are used for separating compounds (such as rectification, steam stripping or absorption and the like), and the towers comprise a packed tower and a plate tower. The gas phase and the liquid phase realize contact mass transfer under the action of a gravity field, so that the purposes of separation and purification are achieved.

Rectification is a mass transfer and heat transfer process, and a rectification tower is usually adopted in chemical industry to achieve the purpose; the rectifying tower is a tower type vapor-liquid contact device for rectifying. The material in the tower kettle is heated into steam, the steam enters from the bottom of the tower and rises to the top of the tower, and the condensed liquid part flows back to the top of the tower and flows downwards under the action of gravity. The ascending gas phase and the descending liquid phase are in countercurrent contact on the packing in the tower; in the two-phase contact, the volatile component in the descending liquid is continuously transferred to the gas phase, and the non-volatile component in the gas phase is continuously transferred to the descending liquid, so that the purpose of component separation is achieved.

Because the liquid phase falls by gravity and contacts with the gas phase, the liquid phase only has one gravity, the gravity field is weaker, the liquid film flows slowly, the effective contact area in unit volume is small, and therefore, the mass transfer efficiency is very low, the equipment volume is large, and the space utilization rate is low.

The supergravity rotary rectifying bed is a new type of heat and mass transfer equipment. It uses the centrifugal force generated by rotation to make the liquid bring the supergravity of tens times of gravity to contact with gas phase. The gas-liquid mass transfer is carried out in the high-gravity field, liquid is torn into micron-scale or even nano-scale liquid films and liquid filaments by virtue of high gravity, and the gas-liquid two phases have large contact areas and the phase interface can be rapidly updated, so that the mass transfer efficiency is improved by 1-2 orders of magnitude compared with that of the traditional tower equipment.

One layer of the super-gravity rotating rectifying bed can support dozens of theoretical plates; the super-gravity rotating bed with the height of 1 m is equivalent to a common rectifying tower with the height of 15 m; under the condition of the same processing capacity, the volume of the equipment can be reduced by 50-70 times by the hypergravity rotating rectifying bed.

Therefore, compared with the conventional rectifying tower technology, the super-gravity rotary rectifying bed has the advantages of high reaction mass transfer efficiency, small equipment volume, low installation height, flexible installation, easy operation and the like, and also has the characteristics of short reaction material retention time, high flooding point, difficult bubbling, difficult blockage, energy conservation, environmental protection, convenient maintenance, stable equipment operation within several seconds and the like. The super-gravity rotating bed is a typical new technology for strengthening multiphase flow transmission and reaction processes, and is widely applied to the occasions of gas-liquid contact absorption, rectification, desorption, chemical reaction and the like in petrochemical industry, coal chemical industry, pharmacy, metallurgy, light industry, explosive and gas industry and the like; the chemical production can be carried out under the conditions of more compact factory layout, lower unit energy consumption and less discharge of three-waste pollutants.

The rotating packed rectifying bed is divided into a counter flow, a cross flow, a baffling flow and the like according to a gas-liquid contact mode. The structure principle of the counter-flow packed bed is that the annular packed bed formed by the wire mesh packing (or other packing) rotates at a high speed under the drive of a motor, liquid is uniformly sprayed to the inner wall of the rotary packing from a static inner cavity in the middle of the packed bed by a liquid distributor, the liquid moves outwards along the radial direction in the packing under the action of high-speed rotation, meanwhile, gas enters the inner cavity of the packing from the periphery of the packing under the action of pressure difference, and the liquid and the gas are in reverse contact. The liquid has the characteristics of high dispersion and strong mixing under the action of strong centrifugal force, and the mass transfer and reaction processes are greatly enhanced.

The single-layer rotating packing rectification bed has obvious rectification effect. In industrial production, multiple levels of rotating packed rectification beds are also often used. And liquid and gas between each layer are communicated through an external connecting pipeline.

Chinese patent CN107987279A discloses a baffling formula hypergravity revolving bed, its rotor includes concentric rotary disk and static dish, certain distance is left with the rolling disc to baffling circle on the static dish, certain distance is also left with static dish to baffling circle on the rolling disc, this revolving bed structure is original, small, highly low, purchase and running cost are low, it is convenient to use and maintain, can avoid using the lightning protection that traditional rectifying column equipment need consider to hit, the typhoon, the condition such as earthquake and high altitude construction.

Chinese patent CN1014178573A discloses a composite rotor super-gravity rotating bed, the innermost layer of the composite rotor is a dynamic deflection ring, the dynamic deflection ring is fixed outside the liquid inlet pipe, and the ring wall of the dynamic deflection ring is fixed with a plurality of corrugated discs uniformly distributed from top to bottom. The rotary bed device has compact and reasonable structure, and can be suitable for occasions with high flooding gas speed and high gas phase flux. However, the rotating bed has the disadvantages of low gas-liquid mass transfer rate, large pressure drop and high power consumption, and the application of the rotating bed in certain industries is limited.

The rotary bed provided by the Chinese patent CN1059105A is characterized in that an annular or cylindrical rotating part is added at the center of the rotary bed, liquid carried in gas is removed by utilizing a centrifugal force field, and meanwhile, the rotary bed adopts a liquid inlet pipe form in various forms, so that the operation gas speed is improved, the liquid distribution is uniform, the mass transfer effect is enhanced, and the production capacity is further improved.

The core component of the baffling type rotating bed disclosed in the Chinese patent CN1686591 is a baffling disc which is embedded from top to bottom and is composed of concentric rings with different diameters; the baffle plate positioned above is fixed on the shell and is a static baffle plate; the static baffle disc is matched with a dynamic baffle disc embedded below the static baffle disc, and the dynamic baffle disc is fixed on the rotating shaft and rotates together with the shaft. The gas enters the cavity from the gas inlet, flows from the outer edge to the center along the clearance of the dynamic and static baffling discs in a zigzag way, and finally leaves the bed body through the gas outlet; liquid enters from the liquid inlet and flows out from the liquid outlet through the guide tube (the liquid is guided to the center of the movable baffling disc, then is thrown to the corresponding static ring by the series of rotating movable rings, and finally is collected in the cavity.

Chinese patent CN1325137C discloses a multilayer baffling type supergravity rotating bed device, which comprises a shell, wherein a rotating shaft with two ends penetrating through the shell is arranged in the center of the shell, and a group of rotors arranged in a layered manner from top to bottom are connected in series on the rotating shaft, so as to increase the mass transfer capacity of a single device. The flux of gas-liquid phase is increased, the processing capacity in unit time is improved, and the liquid phase is not easy to back mix.

Chinese patent CN 202983665U proposes a direct drive type rotary packed bed reactor, which increases power transmission capability and reduces equipment vibration by arranging structures such as shock absorbers, damping springs, damping brackets and the like and a direct drive mode.

Chinese patent CN 101306258B discloses a high-efficiency rotary rectifying bed device, wherein gas and liquid are contacted in a total countercurrent manner and are in cross flow in each rotary filler, and the transfer process is strengthened and the transfer efficiency is improved by a method of rotating the fillers by 3-6 layers; the method is characterized in that through multi-stage filling, the contact time and area of gas and liquid are prolonged, so that the process is strengthened and the efficiency is improved; the filler on the uppermost layer of the rotary packed bed is used as a demisting layer, so that entrainment is reduced, and the purification capacity is improved; the separation capacity of the rectification of the rotary packed bed is ensured, and the phenomena of bed flooding and liquid foam entrainment which are easily caused at the inner diameter of the rotor in the countercurrent rectification of the rotary packed bed are solved.

Chinese patent CN104549100A discloses a novel passive super-gravity rotating bed device; the motor is not needed, the flowing performance of the high-pressure fluid is utilized to drive the rotor to rotate, energy can be effectively saved, and the energy consumption of the whole device is further reduced. The device requires high-pressure fluid with pressure more than or equal to 500Pa, and the strong pressure difference generated by the fluid is utilized to drive the rotor to rotate so as to achieve the aim of saving energy.

However, experiments prove that the kinetic energy required for driving the rotor to rotate is very large in both the gas flow entering from the outer diameter and the liquid flow entering from the inner diameter, and the rotor is only suitable for occasions with just excessive kinetic energy, and the application field is limited.

Chinese patent CN 112206698A discloses a baffling type super-gravity rotating bed with integrally rotating rotor; the liquid distributor is characterized in that the rotor rotates integrally, and the horn-shaped liquid distributor extends downwards into the rotor; the first baffling ring and the second baffling ring of the upper and lower rotating disks of the rotor are respectively provided with a first triangular prism and a second triangular prism as blocking pieces, when liquid is thrown out from the corresponding position of the first baffling ring or the second baffling ring, the liquid can contact the side edge surface of the adjacent second triangular prism or the first triangular prism, the speed loss can be maximized because the speed direction of the liquid is vertical to the direction of the liquid, and strong impact force is obtained at the same time, so that the liquid is crushed into a large number of fine liquid drops, the mass transfer effect is enhanced, the S-shaped motion track of the liquid is just opposite to the S-shaped motion track of gas, the two-phase contact effect is enhanced, and the gas-liquid mass transfer rate of the rotating bed is further improved; the liquid contacts with gas in countercurrent in the rotor, and the contact area of mass transfer, heat transfer and reaction is increased, so that the heat transfer and mass transfer efficiency is high. Meanwhile, the device has the advantages of small voltage drop and low power consumption.

The utility model reduces the rotation resistance through the integral rotation of the rotor; the efficiency of heat and mass transfer is improved through baffling; but because of the design structure limitation of the device, multilayer merging series connection cannot be realized; the heat and mass transfer problems of strongly corrosive materials cannot be adapted.

The concentric ring counter-flow type supergravity rotating bed devices disclosed in the Chinese patents CN101254356A and CN101254357A have the advantages of high mass transfer efficiency, easy realization of intermediate feeding, convenience in multilayer installation and the like, but the rotating bed of the type has higher requirement on the initial distribution of liquid, and whether the liquid is uniformly distributed directly influences the mass transfer performance of equipment. The layer-by-layer partition type distributor and the step type distributor used in the device of the type can play the initial distribution of liquid, but the liquid is not uniformly distributed in the axial direction of the movable disc, the porosity of the distributor is low, the bottleneck of a gas channel is easily formed in the tower, and the distributor is relatively troublesome to manufacture and install.

Chinese patent CN1060415A discloses a rotary liquid-distribution type rotary bed device; and the rotary liquid distribution type rotary bed device is fixedly connected with the rotor or a component on the rotor. Liquid is distributed by the centrifugal force generated by rotation, so that the liquid flow operation range is improved, but a movable sealing structure is required between the liquid distributor and the liquid feeding pipe, the distributor is complex in structure, and the manufacture and installation are troublesome; the liquid is distributed unevenly in the axial direction of the liquid distribution pipe.

Chinese patent CN 101898047B discloses a supergravity rotating bed with a coil pipe type rotating liquid distributor; the coil pipe type liquid distributor is mounted on the rotor rotating at a high speed, and the coil pipe type liquid distributor provides the supergravity rotating bed which utilizes centrifugal force generated by rotation to distribute liquid, has uniform liquid distribution, high liquid flow operation range, high void ratio, simple and compact structure, convenient manufacture and installation and better use effect and rotates the liquid distributor along with the rotation of the rotor. However, the liquid distributor and the rotor of the device rotate synchronously, the relative position of the perimeter of the moving coil and the liquid distributor is invariable, and the moving coil part which is not sprayed (or is sprayed less) with liquid is always in the original state and cannot be adjusted along with the rotation of the rotating shaft. However, the liquid distributor is always in an eccentric state due to manufacturing errors, and thus, a state of uneven liquid ejection is always present.

Chinese patent CN 102240461A discloses a multi-stage absorption type super-gravity rotating bed; the flat screen plate packing set comprises a cylindrical shell, wherein a rotating shaft is vertically arranged in the center of the cylindrical shell and is connected with a motor, and a gap is reserved between the outer circumference of the flat screen plate packing set and the inner wall of the shell; the rotating shaft is of a hollow structure, and a liquid inlet is formed in the upper end of the rotating shaft; the primary plane screen plate packing set is fixed at the upper end of the rotating shaft, the secondary plane screen plate packing set is arranged below the primary plane screen plate packing set and is positioned on the outer side of the groove wall of the central distribution groove, the central distribution groove is fixed on the rotating shaft, and small holes are distributed at the rotating shaft where the primary plane screen plate packing set is positioned; a liquid collecting groove for collecting liquid flowing down from the upper level of the plane mesh plate is arranged between every two levels of the plane mesh plate filler groups, a flow guide pipe is arranged on the groove, and the liquid outlet of the flow guide pipe is over against a distribution groove below the flow guide pipe; and a rotating demister is also fixed on the rotating shaft above the first-level plane screen plate packing group. The rotary bed obtains higher heat transfer coefficient and mass transfer coefficient and higher dust removal efficiency under the condition of lower liquid-gas ratio. The flat net plate packing type cross flow type super-gravity rotating bed is continuously kept, and the advantages of small gas resistance, high mass transfer and heat transfer efficiency and high dust removal efficiency are achieved. The rotary table belongs to a multi-stage rotating bed, and the rotary table and the filler are driven to rotate through the rotation of a middle rotating shaft. But has the problems of difficult liquid distribution, uneven liquid distribution, large interlayer spacing, larger equipment, unsuitability for strong corrosive materials and the like.

From the above disclosure, it can be seen that a typical rotating bed reactor apparatus consists of a housing, a rotating body rotor, a material inlet and outlet, a drive shaft and a motor. The rotor of the rotator is filled with porous medium filler or a plurality of layers of concentric baffling rings. The problems that are common are:

1. because the rotating shaft rotates in the middle, the liquid falls in the middle, so that the liquid distribution is inconvenient, and the liquid is often distributed unevenly; even the liquid can not completely wet the filler, and the gas is easy to cut short, so that the mass transfer efficiency of the rotating bed is reduced.

2. At a certain treatment capacity, a single layer (axial) of packing is only achieved by increasing the diameter of the device in order to improve the transfer capacity (or separation effect) of the device. The difference between the inner diameter and the outer diameter of the rotor of the rotating bed is too large due to the increase of the diameter of the equipment, namely, the difference between the cross sectional areas of liquid circulation is too large, so that the whole cross section is easily filled with liquid at the inner diameter of the rotor, the gas flow is not smooth, and the phenomenon of liquid foam entrainment is serious.

3. The equipment is not corrosion resistant, and the corrosion resistance of the equipment is very difficult.

4. When the equipment is stacked, a plurality of connecting pipes are needed outside the equipment, the occupied space of the equipment is increased, and leakage is easily generated at the interface.

SUMMERY OF THE UTILITY MODEL

The utility model provides a supergravity rotary rectifying bed, which solves the problems of uneven liquid distribution, low mass transfer efficiency and large occupied space of equipment of a rotary bed in the prior art.

The technical scheme of the utility model is realized as follows:

a super-gravity rotating rectification bed comprising:

the device comprises a machine body, a power input device, a gas-liquid channel, a rotary tray and a mass transfer component;

the rotary tray is arranged in the machine body, and the power input device drives the rotary tray to rotate;

the gas-liquid channel penetrates through the rotary tray and the machine body, the upper interfaces of the gas-liquid channel are a liquid inlet and a gas outlet, and the lower interfaces of the gas-liquid channel are a liquid outlet and a gas inlet;

the mass transfer module comprises: a stuffing box, a liquid bearing disc and a liquid distributing disc;

a stuffing box is arranged in the rotary tray, and the liquid bearing disc is arranged at the lower part of the stuffing box; the stuffing box is provided with a liquid outlet and is communicated with the gas-liquid channel through a gas outlet hole arranged on the gas-liquid channel; the liquid bearing disc is connected with the gas-liquid channel and communicated with a liquid outlet and a gas inlet which are arranged on the gas-liquid channel;

the liquid distribution disc is arranged on the gas-liquid channel and is communicated with the filler box, liquid enters the liquid distribution disc through an upper interface, then enters the filler box, finally enters the liquid bearing disc through the lower liquid port, enters the gas-liquid channel through the liquid outlet and the air inlet, and is discharged through the lower interface;

the rotating tray, the stuffing box and the power input device rotate synchronously; the gas-liquid channel, the liquid distribution disc and the gas-liquid separation plate are all in a static state.

In some embodiments, the gas-liquid separation plate is arranged on the gas-liquid channel and is positioned between the liquid outlet and the gas inlet and the gas outlet.

In some embodiments, a corrosion resistant shield is also included and is disposed between the rotating tray and the stuffing box.

In some embodiments, the rotating tray includes an upper tray, a lower tray, and a tray coupling ring coupling the upper tray and the lower tray.

In some embodiments, a sealing structure is arranged at the joint of the anticorrosion isolation cover and the gas-liquid channel. And sealing structures are arranged at the joints of the machine body, the rotating tray and the gas-liquid channel.

In some embodiments, the lower liquid port is located at an outer circumference of the stuffing box.

In some embodiments, the mass transfer module is provided with N groups, wherein N is 2-12.

In some embodiments, the gas-liquid channel is a pipeline or a pipeline composed of N pipe sections, wherein N is 2-12.

In some embodiments, the components in contact with the liquid and the gas are made of a corrosion-resistant material.

In some embodiments, the liquid distribution disc is composed of a liquid collecting ring and a liquid distribution pipe, the liquid collecting ring is an annular bulge with a hollow middle structure, the diameter of the bulge is smaller than that of the gas-liquid channel, and the outer wall of the bulge and the inner wall of the gas-liquid channel form an annular liquid collecting tank to collect liquid flowing downwards in the gas-liquid channel; the liquid distribution pipe is positioned at the bottom of the liquid collecting tank and is arranged in the circumferential through hole of the gas-liquid channel, and the outlet of the liquid distribution pipe is close to the stuffing box so as to realize rapid and uniform liquid distribution.

In some embodiments, the liquid distribution pipe is distributed on the periphery of the liquid collecting tank uniformly.

Compared with the prior art, the utility model has the following beneficial effects:

(1) when the rectifying bed is used, the intermediate shaft does not rotate, and the liquid distribution pipe is simpler and more efficient to arrange.

(2) The rectifying bed has reasonable structural design, can facilitate the superposition of multiple stages, and is quite easy and simple to increase the number of tower plates; the mass transfer adaptability is wide.

(3) When the rectifying bed is used, the liquid distribution pipe is in a static state, so that the filler in the packing box can be uniformly subjected to liquid flow, the liquid distribution is more uniform, and the mass transfer efficiency is high.

(4) The processing capacity can be improved only by increasing the height of the stuffing box; the productivity adaptability is wide.

(5) The rectification bed has simple anticorrosive design, wide anticorrosive material and easy selection, and may be used to accept any strong corrosive material.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive exercise.

FIG. 1: is a structural schematic diagram of a rotary rectifying bed in example 1;

FIG. 2: is a structural schematic diagram of a rotating tray of a rotating rectifying bed in example 1;

FIG. 3: is a structural schematic diagram of a liquid distribution disc of a rotary rectifying bed in example 1;

FIG. 4: is a structural schematic diagram of a liquid distribution pipe of the rotary rectifying bed in example 1;

FIG. 5: is a structural schematic diagram of a rotary rectifying bed in example 2;

wherein: the device comprises a machine body 10, a power input device 20, a gas-liquid channel 30, a rotary tray 40, a mass transfer component 50, an upper interface 301, a lower interface 302, an air outlet 303, a liquid outlet and air inlet 304, an upper tray 401, a lower tray 402, a tray connecting ring 403, a disc panel 404, a hollow rotating shaft 405, a bearing 406, a stuffing box 501, a liquid bearing disc 502, a liquid distribution disc 503, a gas-liquid separating plate 504, an anti-corrosion separating cover 505, a lower liquid outlet 5011, a liquid collecting ring 5031, a liquid distribution pipe 5032, a liquid collecting groove 50311, a stuffing 5012 and a sealing structure 60.

Detailed Description

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like are used in the indicated orientations and positional relationships based on the drawings for convenience in describing and simplifying the description, but do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the utility model.

In the present invention, unless otherwise specifically stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication connection; either directly or indirectly through intervening media, either internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The technical solution of the present invention will be described in detail below with specific examples. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments.

Example 1

Referring to fig. 1-4, a high gravity rotating rectification bed comprises: the device comprises a machine body 10, a power input device 20, a gas-liquid channel 30, a rotating tray 40 and a mass transfer component 50. In which the rotating tray 40 is disposed inside the machine body 10. In order to facilitate the detachment of the rotating tray 40, the rotating tray 40 in the present embodiment includes an upper tray 401, a lower tray 402, and a tray coupling ring 403 that couples the upper tray 401 and the lower tray 402. The upper tray 401 and the lower tray 402 are both a combination of a tray panel 404 and a hollow rotating shaft 405, 2 tray panels 404 are vertically corresponding, and the hollow rotating shaft 405 is combined with a bearing seat on the machine body 10 through a bearing 406. The power input device 20 is connected to the rotating tray 40 to drive the rotating tray 40 to synchronously rotate. The gas-liquid channel 30 penetrates the rotating tray 40 and the machine body 10, an upper interface 301 of the gas-liquid channel 30 is a liquid inlet and a gas outlet, and a lower interface 302 thereof is a liquid outlet and a gas inlet. The mass transfer assembly 50 includes: a stuffing box 501, a liquid bearing disc 502 and a liquid distribution disc 503. Wherein stuffing box 501 is arranged inside rotating tray 40, stuffing 5012 is filled in stuffing box 501, and lower liquid outlet 5011 is arranged on stuffing box 501, and lower liquid outlet 5011 is located at the outer circumference of stuffing box 501. Liquid receiving pan 502 is disposed at the lower portion of stuffing box 501 and covers lower liquid outlet 5011, so that the exchanged liquid is collected through lower liquid outlet 5011 and enters gas-liquid channel 30. The liquid receiving pan 502 is not in direct contact with the stuffing box 501, is fixed to the gas-liquid passage 30, does not rotate with the rotating tray 40, and is in a stationary state. The gas-liquid channel 30 is provided with a plurality of gas outlet holes 303, the stuffing box 501 is communicated with the gas-liquid channel 30 through the gas outlet holes 303, and gas is collected into the gas-liquid channel 30 through the gas outlet holes 303. The liquid bearing disc 502 is communicated with the gas-liquid channel 30 through the liquid outlet and the gas inlet 304 arranged on the gas-liquid channel 30, and after entering the gas-liquid channel 30, the gas enters the liquid bearing disc 502 through the liquid outlet and the gas inlet 304 and enters the stuffing box 501 through the outer circumference to perform heat and mass transfer between gas and liquid. The liquid distribution disc 503 is arranged on the gas-liquid channel 30 and is communicated with the stuffing box 501, liquid enters the liquid distribution disc 503 through the upper connector 301 and then enters the stuffing box 501, heat and mass transfer enters the liquid bearing disc 502 through the lower liquid opening 5011, and enters the gas-liquid channel 30 through the liquid outlet and the air inlet hole 304 and is discharged through the lower connector 302. The rotating tray 40 and the stuffing box 501 rotate synchronously with the power input device 20; the gas-liquid channel 30 and the liquid distribution plate 503 are both in a static state. The liquid distribution plate 503 is composed of a liquid collection ring 5031 and a liquid distribution pipe 5032. The liquid collecting ring 5031 is an annular bulge with a hollow middle structure, the diameter of the bulge is smaller than that of the gas-liquid channel 30, and an annular liquid collecting groove 50311 is formed by the outer wall of the bulge and the inner wall of the gas-liquid channel 30 to collect the liquid flowing downwards in the gas-liquid channel 30; the liquid distribution pipe 5032 is located at the bottom of the liquid collecting tank 50311 and is installed in a circumferential through hole of the gas-liquid passage 30, and an outlet of the liquid distribution pipe 5032 is close to the stuffing box 501 to realize rapid and uniform liquid distribution. The liquid distribution pipe 5032 may be provided in plurality as needed, and is uniformly distributed around the outer periphery of the liquid collecting tank 50311. Because the liquid distribution plate 503 is in a static state, the liquid distribution pipe is installed in the circumferential through hole of the gas-liquid channel 3030, and the design ensures that the installation of the liquid distribution pipe is not only convenient but also efficient. And when the liquid distribution pipe is used, the liquid distribution pipe does not rotate and is not influenced by centrifugal force, so that the filler in the stuffing box 501 can be uniformly subjected to liquid flow, the liquid distribution is more uniform, and the problems of low mass transfer efficiency caused by nonuniform liquid distribution, easy shortcut of gas are solved.

In order to make the liquid and the gas perform sufficient heat and mass transfer on the packing, the present embodiment is further added with a gas-liquid separation plate 504. The gas-liquid separation plate 504 is arranged on the gas-liquid channel 30 and is positioned between the liquid outlet hole and the gas inlet hole 304 and the gas outlet hole 303. Thus, the liquid in the upper layer is prevented from directly entering the gas-liquid channel 30 in the lower part by the gas-liquid separation plate 504, and the gas can smoothly pass through the gas-liquid channel 30 for heat transfer or mass transfer.

Since a relatively large number of application scenarios involve corrosive materials, this embodiment also adds an anti-corrosion shield 505, which is disposed between rotating tray 40 and stuffing box 501. Firstly, the anti-corrosion isolation cover 505 is more convenient to be added into the design, and secondly, the gas and the liquid are wrapped in the anti-corrosion isolation cover 505, so that the service life of the equipment is prolonged. And parts in the equipment, which are contacted with liquid and gas, are made of anticorrosive materials.

For better sealing, sealing structures are designed at multiple positions of the rectifying bed, and the sealing structures belong to the existing design and are not described herein. In the rectifying bed, a sealing structure 60 is arranged at the joint of the anti-corrosion isolation cover 505 and the gas-liquid channel 30, and a sealing structure 60 is arranged at the joint of the machine body 10, the rotary tray 40 and the gas-liquid channel 30.

The process of the supergravity rotating rectifying bed comprises the following steps: the power input device 20 rotates to drive the coaxial rotating tray 40 to rotate synchronously; the corrosion prevention shielding cover 505, the stuffing box 501 and the stuffing provided on the rotating tray 40 are rotated together in synchronization. Gas enters the device from the lower interface 302 of the gas-liquid channel, liquid enters the device from the upper interface 301 of the gas-liquid channel, the gas enters the packing layer from the outer circumference in the packing box 501, the liquid enters the packing layer from the inner circumference, and the gas and the liquid contact on the packing to generate heat and mass transfer, thereby achieving the purpose of rectification. Then, the gas returns to the vapor-liquid channel through the gas outlet 303 and goes upward; the liquid is thrown on the inner wall of the stuffing box 501 under the action of centrifugal force and flows into the liquid bearing disc 502, returns to the vapor-liquid channel through the liquid outlet hole and the vapor inlet hole and descends.

Example 2

For the mass transfer module 50, one skilled in the art can select between 2-12 groups as desired. As shown in fig. 5: the mass transfer modules 50 are in 3 groups. The 3 groups of mass transfer components 50 are tightly connected, so that the gas and the liquid can be subjected to heat transfer for many times, and the mass transfer efficiency is improved. Since the mass transfer module 50 can be selected from 2-12 groups, the gas-liquid channel 30 can also be a single tube or a combination of 2-12 tubes. This example differs from example 1 in that 2 sets of mass transfer modules 50 have been added, with the remainder being the same as example 1.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A hypergravity rotating rectification bed is characterized by comprising:

the rotating tray, the stuffing box and the power input device rotate synchronously; the gas-liquid channel and the liquid distribution disc are in a static state.

2. The high-gravity rotary rectifying bed according to claim 1, further comprising a gas-liquid isolating plate, wherein the gas-liquid isolating plate is arranged on the gas-liquid channel and is positioned between the liquid outlet and the gas inlet and the gas outlet.

3. A super-gravity rotating rectifying bed according to claim 1, further comprising an anti-corrosion shield disposed between said rotating tray and said stuffing box.

4. The high-gravity rotary rectification bed according to claim 1, wherein the rotary tray comprises an upper tray, a lower tray and a tray connecting ring for connecting the upper tray and the lower tray.

5. The high-gravity rotary rectifying bed according to claim 3, wherein a sealing structure is arranged at the joint of the anti-corrosion isolation cover and the gas-liquid channel;

and sealing structures are arranged at the joints of the machine body, the rotating tray and the gas-liquid channel.

6. A super-gravity rotating rectifying bed according to claim 1, wherein said lower liquid port is located at an outer circumference of said stuffing box.

7. The high-gravity rotary rectification bed according to claim 1, wherein the mass transfer component is provided with N groups, wherein N is 2-12; the gas-liquid channel is a pipeline or a pipeline composed of N pipe sections, wherein N is 2-12.

8. The high-gravity rotary rectifying bed according to claim 1, wherein the liquid distribution disc is composed of a liquid collection ring and a liquid distribution pipe, and the liquid distribution pipe is installed in a circumferential through hole of the gas-liquid channel.

9. The high-gravity rotary rectifying bed according to claim 8, wherein the liquid collecting ring is an annular bulge with a hollow structure in the middle, the diameter of the bulge is smaller than that of the gas-liquid channel, and the outer wall of the bulge and the inner wall of the gas-liquid channel form an annular liquid collecting tank to collect liquid flowing downwards in the gas-liquid channel; the liquid distribution pipe is positioned at the bottom of the liquid collecting tank and is arranged in the circumferential through hole of the gas-liquid channel, and the outlet of the liquid distribution pipe is close to the stuffing box.

10. The super-gravity rotary rectifying bed according to claim 9, wherein the liquid distribution pipe is distributed uniformly on the periphery of the liquid collecting tank.