CN112221184A - Pressure-reducing refining tower reboiler - Google Patents
Pressure-reducing refining tower reboiler Download PDFInfo
- Publication number
- CN112221184A CN112221184A CN202011004322.5A CN202011004322A CN112221184A CN 112221184 A CN112221184 A CN 112221184A CN 202011004322 A CN202011004322 A CN 202011004322A CN 112221184 A CN112221184 A CN 112221184A
- Authority
- CN
- China
- Prior art keywords
- barrel
- tube
- heat exchange
- ethylene glycol
- cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000007670 refining Methods 0.000 title claims abstract description 11
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 42
- 238000009826 distribution Methods 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 8
- 238000005452 bending Methods 0.000 claims description 4
- 230000006837 decompression Effects 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 239000000126 substance Substances 0.000 abstract description 4
- 230000000630 rising effect Effects 0.000 abstract description 2
- 238000005192 partition Methods 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 4
- 230000003628 erosive effect Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000010977 unit operation Methods 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Images
Classifications
-
- 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
- B01D3/10—Vacuum distillation
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
The invention discloses a reboiler of a reduced pressure refining tower, belonging to the field of chemical equipment. The invention comprises a cylinder, a lower tube plate arranged at the bottom end of the cylinder and an upper tube plate arranged at the top of the cylinder, wherein an ethylene glycol inlet, an exhaust port and a heat medium outlet are sequentially arranged above the cylinder from top to bottom. The structure stability of the invention is enhanced through the arrangement, and simultaneously, the phenomenon that the rising gas velocity is too high due to too much heat is avoided, so that the pressure drop is increased, and the energy consumption is further reduced.
Description
Technical Field
The invention relates to the field of chemical equipment, in particular to a reboiler of a reduced pressure refining tower.
Background
In petrochemical production plants, rectification is a widely used chemical separation unit operation and is one of the most efficient methods for separating homogeneous liquid mixtures. Meanwhile, the rectification is a chemical unit operation with high energy consumption and large equipment investment. Therefore, the energy saving and equipment optimization of the rectification process have very important significance in the energy saving of the petrochemical industry. In order to reduce the energy consumption of the rectification operation, it is necessary to reduce the pressure drop within a reasonable range and to avoid the damage of the refining column reboiler caused by erosion.
Disclosure of Invention
The invention aims to provide a pressure reduction refining tower reboiler which has long service life and reduces energy consumption.
The technical scheme of the invention is as follows: the utility model provides a decompression refining tower reboiler, includes the barrel, sets up in the lower tube sheet of barrel bottom, sets up in the last tube sheet of barrel top, the tube sheet is close to and is equipped with the outlet on the barrel outer wall down, and the bottom of lower tube sheet is equipped with the ethylene glycol export, and the barrel is close to outlet department and is equipped with the heat medium entry, barrel top is from last ethylene glycol entry, gas vent, the heat medium export of down having set gradually, and the ethylene glycol entry is equipped with the distribution dish that is used for the fixed mounting heat exchange tube in extending to the barrel through the takeover, and the heat exchange tube is fixed on the barrel inner wall through the baffling board of crisscross setting, and the baffling board passes through.
According to the further technical scheme, one end of the liquid inlet buffer tube is sleeved on the inner wall of the heat exchange tube, and the other end of the liquid inlet buffer tube is provided with a bending plate which is bent in a wave shape.
According to the further technical scheme, one end, close to the distribution disc, of the connecting pipe is sleeved with a connecting pipe reinforcing partition plate, and the connecting pipe reinforcing partition plate is fixedly connected to the distribution disc through a flange.
The invention has the beneficial effects that:
the staggered baffle plates are arranged between the heat exchange tubes of the decompression tower, and the staggered baffle plates avoid overlarge rising gas speed caused by excessive heat, so that the pressure drop is increased. Simultaneously, the mouth of pipe of every heat transfer pipeline all is provided with the feed liquor buffer tube, can effectively reduce the speed when the material gets into to alleviate the harm that the erosion caused.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is an enlarged view of a structure shown in fig. 1.
The device comprises a cylinder body 1, a cylinder body 11, a heating medium inlet 12, an ethylene glycol inlet 13, an exhaust port 14, a heating medium outlet 2, a lower tube plate 21, a water outlet 22, an ethylene glycol outlet 3, an upper tube plate 4, a connecting tube 41, a connecting tube reinforcing partition plate 5, a distribution disc 6, a heat exchange tube 61, a liquid inlet buffer tube 62, a bending plate 7, a baffle plate 8 and a pull rod.
Detailed Description
The invention will be further illustrated and understood by the following non-limiting examples.
As shown in fig. 1-2, the present invention is a reboiler of a reduced pressure refining tower, comprising a cylinder 1, a lower tube plate 2 disposed at the bottom end of the cylinder 1, and an upper tube plate 3 disposed at the top of the cylinder 1, wherein the lower tube plate 2 is provided with a water outlet 21 near the outer wall of the cylinder 1, the bottom of the lower tube plate 2 is provided with an ethylene glycol outlet 22, the cylinder 1 is provided with a heat medium inlet 11 near the water outlet 21, the cylinder 1 is provided with an ethylene glycol inlet 12, an air outlet 13, and a heat medium outlet 14 sequentially from top to bottom, the ethylene glycol inlet 12 extends into the cylinder 1 through a connecting tube 4, a distribution disk 5 for fixedly mounting a heat exchange tube 6 is disposed in the cylinder 1, one end of the connecting tube 4 near the distribution disk 5 is sleeved with a connecting tube reinforcing partition plate 41. The heat exchange tubes 6 are fixed on the inner wall of the cylinder 1 through baffle plates 7 which are arranged in a staggered mode, the baffle plates 7 are fixedly connected to the distribution disc 5 through pull rods 8, and the structural stability of the heat exchange tube is enhanced through the arrangement.
The mouth of pipe of heat exchange tube 6 is provided with feed liquor buffer tube 61, and the pot head of feed liquor buffer tube 61 is established on the inner wall of heat exchange tube 6, and the other end is equipped with the board 62 of bending that is the wave.
During operation, heat medium enters from the lower heat medium inlet 11, ethylene glycol enters from the upper ethylene glycol inlet 12, and the two react in the cylinder. The staggered baffle plates 7 avoid overlarge ascending gas velocity caused by excessive heat, so that the pressure drop is increased, the energy consumption is further reduced, and the liquid inlet buffer tube 61 of the heat exchange tube 6 can effectively reduce the rate of materials entering the device so as to reduce the damage caused by erosion.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. The utility model provides a decompression refining tower reboiler, includes the barrel, sets up in the lower tube sheet of barrel bottom, sets up in the last tube sheet of barrel top, the tube sheet is close to and is equipped with the outlet on the barrel outer wall down, and the bottom of lower tube sheet is equipped with the ethylene glycol export, the barrel is close to outlet department and is equipped with the heat medium entry, the barrel top is from last ethylene glycol entry, gas vent, the export of heat medium, its characterized in that down having set gradually: the ethylene glycol inlet extends into the barrel through the connecting pipe, a distribution disc for fixedly mounting the heat exchange tubes is arranged in the barrel, the heat exchange tubes are fixed on the inner wall of the barrel through baffle plates which are arranged in a staggered mode, the baffle plates are fixedly connected to the distribution disc through pull rods, and liquid inlet buffer tubes are arranged at tube openings of the heat exchange tubes.
2. The vacuum refining column reboiler of claim 1, wherein: one end of the liquid inlet buffer tube is sleeved on the inner wall of the heat exchange tube, and the other end of the liquid inlet buffer tube is provided with a bending plate bent in a wave shape.
3. The vacuum refining column reboiler of claim 1, wherein: the one end cover that the takeover is close to the distribution dish is equipped with the takeover and strengthens the baffle, takeover is strengthened the baffle and is passed through flange fixed connection to the distribution dish.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011004322.5A CN112221184A (en) | 2020-09-22 | 2020-09-22 | Pressure-reducing refining tower reboiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011004322.5A CN112221184A (en) | 2020-09-22 | 2020-09-22 | Pressure-reducing refining tower reboiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112221184A true CN112221184A (en) | 2021-01-15 |
Family
ID=74107436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011004322.5A Pending CN112221184A (en) | 2020-09-22 | 2020-09-22 | Pressure-reducing refining tower reboiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112221184A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114026379A (en) * | 2019-04-09 | 2022-02-08 | 卡特彼勒公司 | Radiator and transverse buffering limiter thereof |
-
2020
- 2020-09-22 CN CN202011004322.5A patent/CN112221184A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114026379A (en) * | 2019-04-09 | 2022-02-08 | 卡特彼勒公司 | Radiator and transverse buffering limiter thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20210115 |
|
| WD01 | Invention patent application deemed withdrawn after publication |