CN114100173A - Light component removal rectifying tower - Google Patents
Light component removal rectifying tower Download PDFInfo
- Publication number
- CN114100173A CN114100173A CN202111295981.3A CN202111295981A CN114100173A CN 114100173 A CN114100173 A CN 114100173A CN 202111295981 A CN202111295981 A CN 202111295981A CN 114100173 A CN114100173 A CN 114100173A
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- tower body
- liquid
- fixed plate
- seted
- wall
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- 239000007788 liquid Substances 0.000 claims abstract description 117
- 229920000742 Cotton Polymers 0.000 claims description 41
- 239000012528 membrane Substances 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 abstract description 16
- 238000012423 maintenance Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000010992 reflux Methods 0.000 description 16
- 239000000047 product Substances 0.000 description 10
- 238000010438 heat treatment Methods 0.000 description 4
- 238000012856 packing Methods 0.000 description 4
- 230000000630 rising effect Effects 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 239000013589 supplement Substances 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 239000006260 foam Substances 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- -1 and meanwhile Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/14—Fractional distillation or use of a fractionation or rectification column
- B01D3/143—Fractional distillation or use of a fractionation or rectification column by two or more of a fractionation, separation or rectification step
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D19/00—Degasification of liquids
- B01D19/02—Foam dispersion or prevention
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/14—Fractional distillation or use of a fractionation or rectification column
- B01D3/32—Other features of fractionating columns ; Constructional details of fractionating columns not provided for in groups B01D3/16 - B01D3/30
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/14—Fractional distillation or use of a fractionation or rectification column
- B01D3/32—Other features of fractionating columns ; Constructional details of fractionating columns not provided for in groups B01D3/16 - B01D3/30
- B01D3/322—Reboiler specifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/42—Regulation; Control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
- B01D53/261—Drying gases or vapours by adsorption
Abstract
The invention relates to the field of rectifying towers, in particular to a light component removal rectifying tower which comprises a tower body, wherein a heavy liquid collecting cavity is arranged at the bottom end of the tower body, a through hole is vertically formed above the inner wall of the heavy liquid collecting cavity and is communicated with the bottom end of the inner wall of the tower body, a liquid outlet is formed in the right side of the inner wall of the heavy liquid collecting cavity, a filter screen is fixedly connected to the inner wall of the tower body and is positioned below a backflow port, a secondary fixing plate is fixedly connected to the lower part of the inner wall of the tower body, a plurality of primary fixing plates are vertically and fixedly arranged in parallel at the middle position of the filter screen and the secondary fixing plate, a plurality of primary air outlet holes are uniformly formed in the upper ends of the primary fixing plates, a plurality of liquid outlet holes are uniformly formed in the upper ends of the primary fixing plates and in the side close to the primary air outlet holes in an annular mode, in the invention, liquid can be continuously added into the tower body, the liquid is recycled, the conversion efficiency is improved, the structure is simple, and the production and maintenance cost is reduced.
Description
Technical Field
The invention relates to the field of rectifying towers, in particular to a light component removing rectifying tower.
Background
The light component removing rectifying tower is mass transfer equipment with packing in the tower as a gas-liquid two-phase contact member. The tower body of the lightness-removing tower is a vertical cylinder, the bottom of the lightness-removing tower is provided with a filler supporting plate, and the filler is placed on the supporting plate in a random or integral mode. And a packing pressing plate is arranged above the packing to prevent the packing from being blown by the ascending air flow.
The patent numbers are: CN202010746151.7 discloses a light component removal rectifying tower, which comprises a tower body, a tower cover, a working unit and a heater, wherein the tower body is of a hollow cylindrical structure, the heater is arranged at the bottom of the tower body, the working unit is arranged inside the tower body, and the tower cover is fixedly connected with the top of the tower body in a bolt connection mode; the working unit comprises a fixing plate, a first pipe, a sponge, a spring, a shaft rod and a top plate; when the device works, the sponge can absorb mixed liquid and foam in the mixed gas, the shaft rod drives the mixed gas through rotation and removes the mixed liquid and the foam in the mixed gas, and the sponge and the rotating shaft rod can delay the flow of the mixed gas, so that the mixed gas is rectified more fully, the contained foam is removed more completely, and finally a rectification product with better quality is obtained.
In the invention, the liquid is heated by the heater to form the mixed gas, and then the mixed gas is treated to obtain the rectification product, and the liquid holdup of the container is small, so that liquid cannot be continuously added into the container, the inflow of the liquid is small, the conversion efficiency is low, the equipment structure is complex, and the production and maintenance cost is increased.
Therefore, a light component removal rectifying tower is provided.
Disclosure of Invention
The invention aims to provide a light component removal rectifying tower, which mainly solves the problems that the liquid inflow is small, the conversion efficiency is low, the equipment structure is complex and the production and maintenance cost is increased because liquid holdup of a container is small, and liquid cannot be continuously added into the container.
In order to achieve the purpose, the invention provides the following technical scheme:
a light-component removal rectifying tower comprises a tower body, wherein a heavy liquid collecting cavity is arranged at the bottom end of the tower body, a liquid inlet is formed in the outer surface of the tower body and is positioned in the middle of the tower body, an air inlet is formed in the outer surface of the tower body and is positioned below the tower body, an air outlet is formed in the top end of the tower body, a backflow port is formed in the outer surface of the tower body and is positioned above the tower body, a through hole is vertically formed above the inner wall of the heavy liquid collecting cavity and is communicated with the bottom end of the inner wall of the tower body, a liquid outlet is formed in the right side of the inner wall of the heavy liquid collecting cavity, a filter screen is fixedly connected to the inner wall of the tower body and is positioned below the backflow port, a second-stage fixing plate is fixedly connected to one side, close to the air inlet, of the inner wall of the tower body is arranged to be of a hollow structure, and the air inlet is communicated with the inside of the second-stage fixing plate, the second grade venthole has been seted up to the upper end of second grade fixed plate, the inner wall of tower body and the vertical fixed mounting side by side of intermediate position that is located filter screen and second grade fixed plate have a plurality of one-level fixed plates, and is a plurality of one-level ventholes have evenly been seted up to the upper end of one-level fixed plate, a plurality of liquid holes have evenly been seted up to one side annular that the upper end of one-level fixed plate and be close to the one-level venthole.
When a user uses the device, firstly, steam is introduced into the secondary fixing plate from the air inlet, then enters the bottom of the tower body through the secondary air outlet, and sequentially passes through the primary air outlet of the primary fixing plate along with the rising of the steam to preheat the inside of the tower body to a certain degree, so that the conversion efficiency can be improved, then liquid is introduced into the tower body from the liquid inlet, so that the liquid can pass through the liquid outlet on the primary fixing plate to be contacted with the steam, thereby the light components are gradually concentrated on the upper part of the tower body, and then the steam is discharged out of the tower body from the air outlet to enter the reflux tank, one part can be used as a tower top product, the other part can be sent into the tower body through the reflux port to be used as reflux, the reflux liquid is filtered by the filter screen and then downwards flows into the upper end of the primary fixing plate to supplement the light components on the primary fixing plate, so that the composition of the primary fixing plate on the upper part of the tower body is kept stable, the rectification operation is ensured to be continuously and stably carried out; and heavy ends are concentrated in the lower part of the tower body, after the heavy ends are concentrated, one part of heavy ends is used as residual liquid, and the other part of heavy ends is sent back to the tower after reboiling and heating, so that steam is continuously provided, liquid can be continuously added into the tower body, the liquid is recycled, the conversion efficiency is improved, the structure is simple, and the production and maintenance cost is reduced.
Preferably, the lower extreme of one-level fixed plate just is located one-level venthole under fixedly connected with mount, a plurality of round holes have been seted up to the surface of mount, the outside cover of mount is equipped with the sleeve, telescopic upper end and the lower extreme fixed connection of one-level fixed plate, telescopic inner wall is tangent with the outer lane that the bottom excircle in a plurality of liquid holes formed, is located the mount of second grade fixed plate top is corresponding with the second grade venthole, and the bottom of mount and the upper end fixed connection of second grade fixed plate.
When steam flows into the bottom of tower body from the second grade venthole on the second grade fixed plate, can play certain guide effect through the fixed bolster for most steam can be along the perpendicular rebound of one-level venthole, thereby reduces steam to diffusion all around, reduces the energy consumption loss, and the liquid that the round hole on the fixed bolster and left down from the one-level gas outlet can be passed to the small part steam and the mutual contact carries out the component conversion.
Preferably, the solid fixed ring of upper end fixedly connected with of one-level fixed plate, the outer surface of solid fixed ring is tangent with the inner circle that the upper end excircle in a plurality of play liquid holes formed, gu the outer fixed surface of solid fixed ring is connected with the cotton that absorbs water, the cotton excircle that absorbs water is tangent with the outer lane that the upper end excircle in a plurality of play liquid holes formed.
When steam flows into the upper part of the first-stage fixing plate from the first-stage air outlet, certain bubbles can be generated after the steam and the liquid are contacted with each other, the bubbles can be absorbed by the absorbent cotton, and the liquid above the first-stage fixing plate can be directly absorbed by the absorbent cotton, so that the direct contact of the liquid and the steam is reduced, and the quality of a rectification product is improved; the fixing ring can fix the absorbent cotton, so that the absorbent cotton is prevented from being extruded by steam and liquid to be dislocated, and the absorbent cotton loses the function of filtering bubbles; and when the liquid storage capacity between two adjacent primary fixed plates is too large, the absorbent cotton can be extruded to ensure that the liquid directly flows out from the liquid outlet, so that the phenomenon that the liquid is stored too much and is discharged too soon to submerge the tower is prevented.
Preferably, the outer surface of the fixing frame is fixedly connected with a one-way membrane, and the flow direction of the one-way membrane is from inside to outside.
Can guarantee that the inside discharge of small part vapour from the mount and liquid contact each other, simultaneously, also can prevent that the round hole on the mount is blockked up to the impurity in the liquid.
Preferably, the upper end of the absorbent cotton is provided with a tapered hole, the lower end opening of the tapered hole is larger than the upper end opening, and the opening of the tapered hole is sequentially reduced from bottom to top.
The flow of steam can be slowed down, the contact area of the steam and the absorbent cotton is increased, and the conversion efficiency is further improved.
Preferably, the fixing frame is set to be a conical structure, and an opening at the upper end of the fixing frame is smaller than an opening at the lower end of the fixing frame.
The flow rate of the vapor may be further slowed such that a portion of the vapor is able to pass through the unidirectional membrane to contact the liquid.
Preferably, the round hole is inclined 30-45 degrees and is arranged upwards.
The steam can better pass through the round hole.
Preferably, the fixing frames of two adjacent primary fixing plates are in contact with the absorbent cotton but are not fixedly connected with the absorbent cotton.
The water absorption cotton is prevented from being damaged due to certain deformation when being extruded.
Compared with the prior art, the invention has the beneficial effects that:
1. in the invention, the steam can uniformly enter the bottom end of the tower body by arranging the secondary fixing plate; by arranging the first-stage fixing plate, the steam can sequentially rise and pass through the first-stage air outlet holes of the first-stage fixing plate to preheat the interior of the tower body to a certain degree, so that the conversion efficiency can be improved; through the arrangement of the fixing frame and the liquid outlet hole, liquid can pass through the liquid outlet hole on the first-stage fixing plate to be contacted with steam, so that light components are gradually concentrated on the upper part of the tower body, then the light components are discharged out of the tower body from the air outlet and enter the reflux tank, one part of the light components can be used as a tower top product, the other part of the light components is sent into the tower body through the reflux port to be used as reflux liquid, the reflux liquid is filtered by the filter screen and then flows downwards to the upper end of the first-stage fixing plate to supplement the light components on the first-stage fixing plate, the first-stage fixing plate on the upper part of the tower body is kept stable, and the continuous and stable rectification operation is ensured; and heavy ends are concentrated in the lower part of the tower body, after the heavy ends are concentrated, one part of heavy ends is used as residual liquid, and the other part of heavy ends is sent back to the tower after reboiling and heating, so that steam is continuously provided, liquid can be continuously added into the tower body, the liquid is recycled, the conversion efficiency is improved, the structure is simple, and the production and maintenance cost is reduced.
2. In the invention, the water-absorbing cotton is arranged, so that liquid can be absorbed, and direct contact between the liquid and vapor is reduced, thereby improving the quality of the rectification product; the fixing ring is arranged, so that the absorbent cotton can be fixed, and the absorbent cotton is prevented from being extruded by steam and liquid to be dislocated, so that the absorbent cotton loses the function of filtering bubbles; when the liquid storage capacity between two adjacent primary fixed plates is too large, the absorbent cotton can be extruded to enable the liquid to directly flow out of the liquid outlet, and the phenomenon that the liquid is stored too much and discharged too soon to cause flooding of the tower is prevented; the conical hole is formed in the upper end of the water absorption cotton, so that the flow of steam can be slowed down, the contact area of the steam and the water absorption cotton is increased, and the conversion efficiency is further improved.
3. According to the invention, the one-way membrane is arranged, so that a small part of steam can be discharged from the inside of the fixing frame and is contacted with liquid, and meanwhile, impurities in the liquid can be prevented from blocking the round hole in the fixing frame.
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 some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a front view of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
FIG. 3 is a schematic cross-sectional view taken along line A-A of FIG. 2 according to the present invention;
fig. 4 is a partial enlarged view of fig. 2 at B in the present invention.
In the figure: tower body 1, heavy liquid collection chamber 2, inlet 3, air inlet 4, gas vent 5, backward flow mouth 6, liquid outlet 7, filter screen 8, one-level fixed plate 9, cotton 10 that absorbs water, bell mouth 101, solid fixed ring 11, go out liquid hole 12, one-level venthole 13, sleeve 14, mount 15, round hole 16, one-way membrane 17, second grade fixed plate 18, second grade venthole 19.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 4, the present invention provides a technical solution:
a light component removal rectifying tower comprises a tower body 1, a heavy liquid collecting cavity 2 is arranged at the bottom end of the tower body 1, a liquid inlet 3 is arranged at the outer surface of the tower body 1 and is positioned in the middle, an air inlet 4 is arranged at the outer surface of the tower body 1 and is positioned below the tower body 1, an air outlet 5 is arranged at the top end of the tower body 1, a backflow port 6 is arranged at the outer surface of the tower body 1 and is positioned above the inner wall of the heavy liquid collecting cavity 2, a through hole is vertically arranged above the inner wall of the heavy liquid collecting cavity 2 and is communicated with the bottom end of the inner wall of the tower body 1, a liquid outlet 7 is arranged at the right side of the inner wall of the heavy liquid collecting cavity 2, a filter screen 8 is fixedly connected to the inner wall of the tower body 1 and is positioned below the backflow port 6, a second-stage fixing plate 18 is fixedly connected to one side of the inner wall of the tower body 1 and is close to the air inlet 4, the inside of the second-stage fixing plate 18 is arranged to be a hollow structure, and the air inlet 4 is communicated with the inside of the second-stage fixing plate 18, second grade venthole 19 has been seted up to the upper end of second grade fixed plate 18, and the vertical fixed mounting side by side of the inner wall of tower body 1 and the intermediate position that is located filter screen 8 and second grade fixed plate 18 has a plurality of one-level fixed plates 9, and a plurality of one-level ventholes 13 have evenly been seted up to the upper end of a plurality of one-level fixed plates 9, and a plurality of liquid holes 12 have evenly been seted up to the upper end of one-level fixed plate 9 and the one side annular that is close to one-level venthole 13.
When a user uses the device, firstly, steam is introduced into the secondary fixing plate 18 from the air inlet 4, then enters the bottom of the tower body 1 through the secondary air outlet 19, and sequentially passes through the primary air outlet 13 of the primary fixing plate 9 along with the rising of the steam to preheat the interior of the tower body 1 to a certain degree, so that the conversion efficiency can be improved, then liquid is introduced into the tower body 1 from the liquid inlet 3, so that the liquid can pass through the liquid outlet 12 on the primary fixing plate 9 to be contacted with the steam, so that the light components are gradually concentrated on the upper part of the tower body 1, then the light components are discharged from the tower body 1 through the air outlet 5 to enter the reflux tank, one part of the light components can be taken as a tower top product, the other part of the light components is sent into the tower body 1 through the reflux port 6 to be taken as reflux liquid, the reflux liquid is filtered by the filter screen 8 and then flows downwards to the upper end of the primary fixing plate 9 to supplement the light components on the primary fixing plate 9, the first-stage fixing plate 9 on the upper part of the tower body 1 is kept stable, and the rectification operation is ensured to be continuously and stably carried out; and heavy ends are concentrated in the lower part of the tower body 1, after the heavy ends are concentrated, one part of heavy ends is used as residual liquid, and the other part of heavy ends is sent back to the tower after reboiling and heating, so that steam is continuously provided, liquid can be continuously added into the tower body 1, the liquid is recycled, the conversion efficiency is improved, the structure is simple, and the production and maintenance cost is reduced.
As an embodiment of the present invention, a fixing frame 15 is fixedly connected to a lower end of the primary fixing plate 9 and located right below the primary air outlet 13, a plurality of circular holes 16 are formed on an outer surface of the fixing frame 15, a sleeve 14 is sleeved outside the fixing frame 15, an upper end of the sleeve 14 is fixedly connected to a lower end of the primary fixing plate 9, an inner wall of the sleeve 14 is tangent to an outer ring formed by an outer circle of a bottom end of the plurality of liquid outlet holes 12, the fixing frame 15 located above the secondary fixing plate 18 corresponds to the secondary air outlet 19, and a bottom end of the fixing frame 15 is fixedly connected to an upper end of the secondary fixing plate 18.
When steam flows into the bottom of the tower body 1 from the second-stage air outlet 19 on the second-stage fixing plate 18, a certain guiding effect can be achieved through the fixing frame 15, most of steam can vertically move upwards along the first-stage air outlet 13, therefore, the steam is reduced to diffuse all around, the energy consumption loss is reduced, and small steam can pass through the round hole 16 on the fixing frame 15 and contact with liquid left from the first-stage air outlet to perform component conversion.
As an implementation mode of the invention, the upper end of the primary fixing plate 9 is fixedly connected with a fixing ring 11, the outer surface of the fixing ring 11 is tangent to the inner ring formed by the upper excircles of the liquid outlet holes 12, the outer surface of the fixing ring 11 is fixedly connected with absorbent cotton 10, and the excircle of the absorbent cotton 10 is tangent to the outer ring formed by the upper excircles of the liquid outlet holes 12.
When steam flows into the upper part of the first-stage fixing plate 9 from the first-stage air outlet hole 13, certain bubbles are generated after the steam and liquid are contacted with each other, the bubbles can be absorbed by the absorbent cotton 10, and the liquid above the first-stage fixing plate 9 can be directly absorbed by the absorbent cotton 10, so that the direct contact of the liquid and the steam is reduced, and the quality of a rectification product is improved; the fixing ring 11 can fix the absorbent cotton 10, so that the absorbent cotton 10 is prevented from being extruded by steam and liquid to be dislocated, and the absorbent cotton 10 loses the function of filtering bubbles; and when the liquid storage capacity between two adjacent first-stage fixing plates 9 is too large, the absorbent cotton 10 can be extruded to enable the liquid to directly flow out from the liquid outlet 7, so that the phenomenon that the liquid is stored too much and is discharged too soon to submerge the tower is prevented.
In one embodiment of the present invention, a one-way membrane 17 is fixedly connected to the outer surface of the fixing frame 15, and the one-way membrane 17 flows from the inside to the outside.
Can ensure that a small part of steam is discharged from the inside of the fixed frame 15 and is contacted with the liquid, and can prevent impurities in the liquid from blocking the round hole 16 on the fixed frame 15.
According to one embodiment of the invention, tapered holes 101 are formed in the upper ends of the absorbent cotton 10, the lower end openings of the tapered holes 101 are larger than the upper end openings, and the openings of the tapered holes 101 are sequentially reduced from bottom to top, so that the flow of steam can be slowed down, the contact area between the steam and the absorbent cotton 10 is increased, and the conversion efficiency is further improved.
As an embodiment of the present invention, the fixing frame 15 is provided with a conical structure, and the upper opening of the fixing frame 15 is smaller than the lower opening, so that the flow rate of the vapor can be further reduced, and a part of the vapor can pass through the one-way membrane 17 to contact with the liquid.
As an embodiment of the invention, the circular hole 16 is arranged upwards at an angle of 30-45 degrees, so that steam can better pass through the circular hole 16.
As an embodiment of the invention, the fixing frames 15 of two adjacent primary fixing plates 9 are in contact with the absorbent cotton 10 but not fixedly connected with the absorbent cotton 10, so that the absorbent cotton 10 is prevented from being damaged due to certain deformation when being squeezed.
The working principle is as follows: when a user uses the device, firstly, steam is introduced into the secondary fixing plate 18 from the air inlet 4, then the steam flows into the fixing frame 15 through the secondary air outlet 19, and sequentially passes through the primary air outlet 13 on the primary fixing plate 9 along with the rising of most of the steam to preheat the interior of the tower body 1 to improve the conversion efficiency, then the liquid is introduced into the tower body 1 from the liquid inlet 3, so that the absorbent cotton 10 can firstly absorb a part of the liquid, then other liquid passes through the liquid outlet 12 on the primary fixing plate 9 to flow onto the surface of the one-way membrane 17, during the rising of the steam, a small part of the steam is blown out from the interior of the one-way membrane 17 through the round hole 16 on the fixing frame 15, so that the blown small part of the steam is contacted with the liquid, a small amount of bubbles can be generated after the gas and the liquid are contacted with each other, and the bubbles can be absorbed through the absorbent cotton 10, the quality of the obtained rectification product is improved;
most of steam continuously flows to the upper part of the tower body 1 after contacting with liquid on the absorbent cotton 10, so that light components are gradually concentrated at the upper part of the tower body 1, then the steam is discharged out of the tower body 1 from the exhaust port 5 and enters the reflux tank, one part of the steam can be used as a tower top product, the other part of the steam is sent into the tower body 1 through the reflux port 6 to be used as reflux, the reflux is filtered by the filter screen 8 and then flows downwards to the upper end of the first-stage fixed plate 9 to supplement the light components on the first-stage fixed plate 9, so that the first-stage fixed plate 9 on the upper part of the tower body 1 is kept stable, and the rectification operation is continuously and stably carried out; and heavy ends are concentrated in the lower part of the tower body 1, after the heavy ends are concentrated, one part of heavy ends is used as residual liquid, and the other part of heavy ends is sent back to the tower after reboiling and heating, so that steam is continuously provided, liquid can be continuously added into the tower body 1, the liquid is recycled, the conversion efficiency is improved, the structure is simple, and the production and maintenance cost is reduced.
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 invention 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 (8)
1. A lightness-removing rectifying tower comprises a tower body (1), and is characterized in that: the bottom of tower body (1) is provided with heavy liquid collecting cavity (2), the surface of tower body (1) just is located the intermediate position and has seted up inlet (3), the surface of tower body (1) just is located the below position and has seted up air inlet (4), air inlet (4) are in the top of heavy liquid collecting cavity (2), gas vent (5) have been seted up on the top of tower body (1), the surface of tower body (1) just is located the top position and has seted up backward flow mouth (6), the inner wall top of heavy liquid collecting cavity (2) vertically has seted up the through-hole, the through-hole is linked together with the inner wall bottom of tower body (1), liquid outlet (7) have been seted up on the inner wall right side of heavy liquid collecting cavity (2), the inner wall of tower body (1) just is located the below fixedly connected with filter screen (8) of backward flow mouth (6), the inner wall of tower body (1) just is close to one side fixedly connected with second grade fixed plate (18) of air inlet (4), the inside of second grade fixed plate (18) sets up to hollow structure, air inlet (4) are linked together with the inside of second grade fixed plate (18), second grade venthole (19) have been seted up to the upper end of second grade fixed plate (18), the inner wall of tower body (1) just is located the vertical fixed mounting side by side of intermediate position of filter screen (8) and second grade fixed plate (18) has a plurality of one-level fixed plates (9), and is a plurality of one-level ventholes (13) have evenly been seted up to the upper end of one-level fixed plate (9), a plurality of liquid holes (12) have evenly been seted up to one side annular that the upper end of one-level fixed plate (9) and be close to one-level venthole (13).
2. A light ends removal rectification column as claimed in claim 1, wherein: the lower extreme of one-level fixed plate (9) just is located one-level venthole (13) fixedly connected with mount (15) under, a plurality of round holes (16) have been seted up to the surface of mount (15), the outside cover of mount (15) is equipped with sleeve (14), the upper end of sleeve (14) and the lower extreme fixed connection of one-level fixed plate (9), the inner wall of sleeve (14) is tangent with the outer lane that the bottom excircle of a plurality of play liquid holes (12) formed, is located mount (15) of second grade fixed plate (18) top are corresponding with second grade venthole (19), and the upper end fixed connection of the bottom of mount (15) and second grade fixed plate (18).
3. A light ends removal rectification column as claimed in claim 1, wherein: the upper end fixedly connected with of one-level fixed plate (9) fixes ring (11), the surface of fixing ring (11) is tangent with the inner circle that the upper end excircle of a plurality of play liquid holes (12) formed, the outer fixed surface of fixing ring (11) is connected with cotton (10) that absorbs water, the excircle of cotton (10) that absorbs water is tangent with the outer lane that the upper end excircle of a plurality of play liquid holes (12) formed.
4. A light ends removal rectification column as claimed in claim 2, wherein: the outer surface of the fixing frame (15) is fixedly connected with a one-way membrane (17), and the flow direction of the one-way membrane (17) is from inside to outside.
5. A light ends removal rectification column as claimed in claim 3, wherein: the upper end of cotton (10) that absorbs water has all been seted up bell mouth (101), the lower extreme opening of bell mouth (101) is greater than the upper end opening, the opening of bell mouth (101) is followed and is up reduced in proper order down.
6. A light ends removal rectification column as claimed in claim 2, wherein: the fixing frame (15) is of a conical structure, and an opening at the upper end of the fixing frame (15) is smaller than an opening at the lower end of the fixing frame.
7. A light ends removal rectification column as claimed in claim 2, wherein: the round hole (16) is inclined 30-45 degrees and is arranged upwards.
8. A light ends removal rectification column as claimed in claim 2 or 3, wherein: the fixing frames (15) of two adjacent primary fixing plates (9) are in contact with the absorbent cotton (10) but are not fixedly connected.
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| CN202111295981.3A CN114100173A (en) | 2021-11-03 | 2021-11-03 | Light component removal rectifying tower |
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| CN202111295981.3A CN114100173A (en) | 2021-11-03 | 2021-11-03 | Light component removal rectifying tower |
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