CN218475094U - Hydrochloric acid deep dehydration tower - Google Patents

Hydrochloric acid deep dehydration tower Download PDF

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Publication number
CN218475094U
CN218475094U CN202222390832.1U CN202222390832U CN218475094U CN 218475094 U CN218475094 U CN 218475094U CN 202222390832 U CN202222390832 U CN 202222390832U CN 218475094 U CN218475094 U CN 218475094U
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tower
port
hydrochloric acid
section
deep
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CN202222390832.1U
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Chinese (zh)
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夏男
江善强
汪漠
徐国云
何江伟
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Sida Fluorine Plastic Co ltd
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Sida Fluorine Plastic Co ltd
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Abstract

The utility model discloses a hydrochloric acid takes off tower deeply relates to gas separation technical field, including the tower top part, the tower middle part and the tower bottom part that connect gradually, all through flange joint between tower top part, the tower middle part and the tower bottom part, tower top part, tower middle part and tower bottom part are the steel and the internal surface covers there is fluoroplastics, tower top part is equipped with top of the tower gas phase export, tower bottom part is equipped with the liquid phase export, the tower middle part embeds has packing grid tray and glass to pack, glass pack by the packing grid tray bears, the packing grid tray has a plurality of through-holes. The utility model discloses can solve among the prior art hydrochloric acid desorber equipment bulky, weight is big, overhaul difficulty, graphite raschig ring packing in the tower lead to the inefficiency, the scheduling problem of running cost height, the advantage is obvious and equipment life is longer.

Description

Hydrochloric acid deep dehydration tower
Technical Field
The utility model relates to a gas separation technical field, concretely relates to hydrochloric acid takes off tower deeply.
Background
The existing deep desorption towers are all graphite towers, the filling material is also a graphite Raschig ring, and the traditional graphite desorption tower uses graphite materials to manufacture tower internals; because the graphite material has the defects of low strength, large brittleness and the like, the graphite material cannot be processed into light and thin pieces, so that the tower internal parts of the hydrochloric acid desorption tower made of graphite have heavy structure, are inconvenient to disassemble and assemble, occupy large internal space, and particularly occupy large cross section space in the tower; in addition, the graphite material is generally only suitable for being processed into Raschig rings, and the Raschig rings have low mass transfer efficiency and large packing factors, so that the graphite desorption tower is generally 40-60% larger than a metal tower with the same performance. On the other hand, the amplification effect of the packed tower causes vicious circle, namely, the larger the tower diameter is, the lower the mass transfer efficiency is, the higher the energy consumption rate is, and the worse the product quality is, so the traditional concentrated hydrochloric acid desorption tower prepared from graphite has the defects of low desorption efficiency, high operation cost, much water in the product hydrogen chloride and the like.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a hydrochloric acid takes off tower deeply that can solve among the prior art hydrochloric acid desorber equipment bulky, weight is big, overhaul difficulty, the interior graphite raschig ring of tower packs and leads to the problem such as inefficiency, running cost height. The utility model provides a technical scheme does:
the utility model provides a hydrochloric acid deep dehydration tower, includes the tower top part, the tower middle part and the tower bottom part that connect gradually, all through flange joint between tower top part, tower middle part and the tower bottom part, tower top part, tower middle part and tower bottom part are steel and the internal surface covers has fluoroplastics, tower top part is equipped with top of the tower gaseous phase export, tower bottom part is equipped with the liquid phase export, the tower middle part embeds there is packing grid tray and glass filler, the glass filler is born by the packing grid tray, the packing grid tray has a plurality of through-holes.
Optionally, the fluoroplastic is polytetrafluoroethylene or polyperfluoroethylpropylene or polyvinylidene fluoride or ethylene-tetrafluoroethylene copolymer or ethylene chlorotrifluoroethylene copolymer.
Optionally, the glass filler is a glass spring, and the fluoroplastic adopts fluorinated ethylene propylene.
Optionally, a detachable tower section is arranged in the middle of the tower, and a thermometer port in the tower is arranged on the tower section.
Optionally, the tower top part is equipped with feed inlet and backward flow mouth, the backward flow mouth is located the feed inlet top, the tower top part still is equipped with the pressure detection mouth.
Optionally, the bottom part of the tower is provided with a tower bottom temperature port and a reboiler return port, the bottom part of the tower is provided with a cavity for containing liquid, and the upper part of the bottom part of the tower is provided with a pressure detection port.
Optionally, the tower segment is located in the middle of the middle part of the tower, glass fillers are disposed in the tower bodies on the upper and lower sides of the tower segment, and fluoroplastics are covered on the inner surfaces of the tower segment.
Optionally, the feed inlet is provided with a feed temperature meter port on the opposite side of the tower top portion, the feed temperature meter port is higher than the feed inlet, the reflux port is provided with a reflux temperature meter port on the opposite side of the tower top portion, and the reflux temperature meter port is higher than the reflux port.
Optionally, the cavity has a diameter greater than a diameter of the middle portion of the column, the cavity having a cylindrical section and a tapered section.
Optionally, the bottom part of the tower is provided with a liquid level port.
Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect:
(1) The corrosion resistance of the tower lining made of FEP is better than that of graphite, the volume is smaller, and the service life of equipment is long;
(2) The steel lining tetrafluoro tower is convenient to disassemble and inspect, is lighter than a graphite material, has better corrosion resistance than graphite, has longer service life, and is difficult to damage;
(3) The glass spring is used as a filler, liquid is dispersed into an extremely thin liquid film by virtue of the capillary action between glass fibers, the contact area of gas and liquid phases is increased, and the mass transfer efficiency can be improved.
Drawings
Fig. 1 is a schematic structural diagram of a hydrochloric acid deep stripping tower according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a packing grid according to an embodiment of the present invention.
Reference numerals: 1. a gas phase outlet at the top of the tower; 2. a first pressure measuring port at the tower top; 3. a second pressure gauge outlet at the tower top; 4. a reflux thermometer port; 5. a return port; 6. a feed temperature gauge port; 7. a feed inlet; 8. a thermometer port in the column; 9. a first pressure measuring port at the bottom of the tower; 10. a second pressure measuring port at the bottom of the tower; 11. a return gas thermometer port; 12. a gas phase return port; 13. an upper port of the remote liquid level meter; 14. an upper port of the local liquid level meter; 15. a lower port of the remote liquid level meter; 16. a lower port of the local liquid level meter; 17. a reboiler return port; 18. a temperature gauge port at the bottom of the tower; 20. and a liquid phase outlet.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, integrally connected, or detachably connected; either mechanically or electrically, or internally communicating two elements; they may be directly connected or indirectly connected through an intermediate, and those skilled in the art will understand the specific meanings of the above terms according to specific situations.
As shown in fig. 1, a hydrochloric acid deep stripping tower comprises a tower top part, a tower middle part and a tower bottom part which are connected in sequence, wherein the tower top part comprises a plurality of detachably connected tower sections, the tower top part, the tower middle part and the tower bottom part are connected through flanges, the tower top part, the tower middle part and the tower bottom part are all made of steel, the inner surfaces of the tower top part, the tower middle part and the tower bottom part are covered with fluoroplastic, the tower top part is provided with a tower top gas phase outlet, the tower top gas phase outlet is positioned at the top of the tower top part, the tower bottom part is provided with a liquid phase outlet, the liquid phase outlet is positioned at the bottommost of the tower bottom part, a plurality of packing grid plates and glass packing are arranged in the tower middle part, and the glass packing is supported by the packing grid plates; the packing grid as shown in fig. 2 has a plurality of through-holes for gas and liquid to flow through, and the through-holes are preferably circular through-holes, and the circular through-holes are uniformly distributed in a honeycomb shape on the packing grid, which is preferably circular. The column middle part main body is preferably cylindrical, and the packing grid is installed in the column in a horizontal direction.
The fluoroplastic is Polytetrafluoroethylene (PTFE) or Fluorinated Ethylene Propylene (FEP), polyvinylidene fluoride (PVDF), ethylene-tetrafluoroethylene copolymer (ETFE) or Ethylene chlorotrifluoroethylene copolymer (ECTFE), and the fluoroplastic has excellent corrosion resistance.
The glass filler is preferably a glass spring, the glass filler is not easy to wear fluoroplastic of the hydrochloric acid deep stripping tower lining, and the fluoroplastic is preferably Fluorinated Ethylene Propylene (FEP), so that the corrosion resistance is considered, and the processability is better.
The detachable tower section is arranged in the tower, so that the installation and the disassembly and the inspection are convenient, and a thermometer port in the tower is arranged on the tower section. The tower section is positioned in the middle of the middle part of the tower, glass packing is arranged in the tower bodies on the upper side and the lower side of the tower section, and the inner surface of the tower section is also covered with fluoroplastic.
The tower top part is equipped with feed inlet and backward flow mouth, and the backward flow mouth is located the feed inlet top, and the tower top part still is equipped with the pressure detection mouth, and this pressure detection mouth is including the relative top of the tower pressure gauge mouth one and the top of the tower pressure gauge mouth two that set up, can be used to install local manometer or conveying pressure gauge respectively.
The tower bottom part is equipped with tower bottom thermometer mouth and reboiler and returns the mouth, and the tower bottom part has the cavity that is used for holding liquid, and the upper portion of tower bottom part is equipped with the pressure detection mouth, and this pressure detection mouth is including the relative tower bottom pressure gauge mouth one that sets up and tower bottom pressure gauge mouth two, respectively can be used to install local manometer or conveying pressure gauge. The tower bottom is also provided with a liquid level port, the liquid level port comprises a remote transmission liquid level meter upper port, a local liquid level meter upper port, a remote transmission liquid level meter lower port and a local liquid level meter lower port, the remote transmission liquid level meter upper port and the remote transmission liquid level meter lower port are used for installing a remote transmission liquid level meter, and the local liquid level meter upper port and the local liquid level meter lower port are used for installing a local liquid level meter; the upper port of the remote transmission liquid level meter and the upper port of the local liquid level meter are oppositely arranged, namely are positioned on two sides of the bottom part of the tower, and the lower port of the remote transmission liquid level meter and the lower port of the local liquid level meter are oppositely arranged and are respectively positioned on two sides of the bottom part of the tower. Each interface on the hydrochloric acid deep dehydration tower is provided with a flange.
The feeding port is provided with a feeding thermometer port at one side opposite to the tower top part, the feeding thermometer port is higher than the feeding port, the reflux port is provided with a reflux thermometer port at one side opposite to the tower top part, and the reflux thermometer port is higher than the reflux port.
The diameter of cavity is greater than the diameter of part in the tower, and the cavity has at least one cylinder section and two reducing sections, and the reducing section passes through flange joint to be installed in the upper and lower both ends of cylinder section to realize the low resistance intercommunication with other tower bodies, avoid the deposit of particulate matter in the tower to be detained.
The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without creatively designing the similar structural modes and embodiments to the technical solutions, they should belong to the protection scope of the present invention.

Claims (10)

1. The hydrochloric acid deep stripping tower is characterized by comprising a tower top part, a tower middle part and a tower bottom part which are sequentially connected, wherein the tower top part, the tower middle part and the tower bottom part are all connected through flanges, the tower top part, the tower middle part and the tower bottom part are all made of steel, fluoroplastic covers the inner surfaces of the tower top part and the tower bottom part, a tower top gas phase outlet is formed in the tower top part, a liquid phase outlet is formed in the tower bottom part, a packing grid plate and glass packing are arranged in the tower middle part, the glass packing is borne by the packing grid plate, and the packing grid plate is provided with a plurality of through holes.
2. The hydrochloric acid deep stripping tower as claimed in claim 1, wherein the fluoroplastic is polytetrafluoroethylene, polyperfluoroethylpropylene, polyvinylidene fluoride, ethylene-tetrafluoroethylene copolymer or ethylene chlorotrifluoroethylene copolymer.
3. The hydrochloric acid deep stripping tower as claimed in claim 2, wherein the glass filler is a glass spring, and the fluoroplastic is fluorinated ethylene propylene.
4. The deep hydrochloric acid removal tower according to any one of claims 1 to 3, wherein the middle part of the tower is provided with a detachable tower section, and the tower section is provided with a thermometer port in the tower.
5. The deep hydrochloric acid stripping tower as claimed in any one of claims 1 to 3, wherein the top of the tower is provided with a feed inlet and a reflux inlet, the reflux inlet is located above the feed inlet, and the top of the tower is further provided with a pressure detection port.
6. The deep hydrochloric acid stripping column as claimed in any one of claims 1 to 3, wherein the bottom section of the column is provided with a bottom temperature port and a reboiler return port, the bottom section of the column has a chamber for containing liquid, and the upper section of the bottom section of the column is provided with a pressure detection port.
7. The deep hydrochloric acid stripping tower as claimed in claim 4, wherein the tower section is located in the middle of the middle part of the tower, glass packing is arranged in the tower bodies on the upper and lower sides of the tower section, and the inner surface of the tower section is also covered with fluoroplastic.
8. The hydrochloric acid deep dehydration tower according to claim 5, wherein said feed inlet is provided with a feed temperature meter port at an opposite side of said top portion, said feed temperature meter port being located at a position higher than that of said feed inlet, said reflux port is provided with a reflux temperature meter port at an opposite side of said top portion, said reflux temperature meter port being located at a position higher than that of said reflux port.
9. The deep hydrochloric acid stripping tower as claimed in claim 6, wherein the diameter of said cavity is larger than the diameter of the part in said tower, and said cavity has a cylindrical section and a tapered section.
10. The deep hydrochloric acid stripping tower as claimed in any one of claims 7 to 9, wherein a liquid level port is provided at a bottom portion of the tower.
CN202222390832.1U 2022-09-08 2022-09-08 Hydrochloric acid deep dehydration tower Active CN218475094U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202222390832.1U CN218475094U (en) 2022-09-08 2022-09-08 Hydrochloric acid deep dehydration tower

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202222390832.1U CN218475094U (en) 2022-09-08 2022-09-08 Hydrochloric acid deep dehydration tower

Publications (1)

Publication Number Publication Date
CN218475094U true CN218475094U (en) 2023-02-14

Family

ID=85167818

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202222390832.1U Active CN218475094U (en) 2022-09-08 2022-09-08 Hydrochloric acid deep dehydration tower

Country Status (1)

Country Link
CN (1) CN218475094U (en)

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