CN112007369A - Novel reboiler of foam is removed in high-efficient heat transfer - Google Patents
Novel reboiler of foam is removed in high-efficient heat transfer Download PDFInfo
- Publication number
- CN112007369A CN112007369A CN202010771044.XA CN202010771044A CN112007369A CN 112007369 A CN112007369 A CN 112007369A CN 202010771044 A CN202010771044 A CN 202010771044A CN 112007369 A CN112007369 A CN 112007369A
- Authority
- CN
- China
- Prior art keywords
- shell
- gas
- tube
- heat exchange
- liquid separator
- 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
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01B—BOILING; BOILING APPARATUS ; EVAPORATION; EVAPORATION APPARATUS
- B01B1/00—Boiling; Boiling apparatus for physical or chemical purposes ; Evaporation in general
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01B—BOILING; BOILING APPARATUS ; EVAPORATION; EVAPORATION APPARATUS
- B01B1/00—Boiling; Boiling apparatus for physical or chemical purposes ; Evaporation in general
- B01B1/02—Preventing foaming
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/06—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits having a single U-bend
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
- F28F19/01—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using means for separating solid materials from heat-exchange fluids, e.g. filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/007—Auxiliary supports for elements
- F28F9/013—Auxiliary supports for elements for tubes or tube-assemblies
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/24—Arrangements for promoting turbulent flow of heat-exchange media, e.g. by plates
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Fluid Mechanics (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
The invention relates to a novel reboiler for efficient heat exchange and defoaming, belonging to the technical field of chemical equipment, and comprising a gas-liquid separator, a shell pass shell, a tube pass tube bundle and a baffle plate which are arranged in the shell pass shell, and a rich liquid inlet and a lean liquid outlet which are arranged at the bottom end of the shell pass shell; the tube side tube bundle is in a overlook U shape in the shell side shell, a gas phase area is arranged above the tube side tube bundle, and the gas phase area is positioned in an upper area in the shell side shell; the baffle plates are linearly arranged on the tube side tube bundle and are in a single-arch gap vertical shape; the gas-liquid separator is positioned outside the shell pass shell, and the bottom end of the gas-liquid separator is connected with the top end of the shell pass shell through a plurality of groups of gas-lifting pipe groups. Compared with the prior art, the invention integrates the functions of gas generation by heat exchange and foam removal, thereby not only improving the heat exchange efficiency and reducing the heat exchange area, but also efficiently removing liquid foam carried in the gas and improving the purity of the gas.
Description
Technical Field
The invention belongs to the technical field of chemical equipment, and particularly relates to a novel reboiler for efficiently exchanging heat and removing foam.
Background
At present, a reboiler basically adopts a structure of a kettle-type reboiler, as shown in fig. 1 and 2, a wire mesh demister is arranged in a gas outlet at the upper part of a kettle body, and in the kettle-type reboiler, the inner diameter of a kettle body section is larger than that of other sections of a barrel body. The outer diameter of the baffle plate of the tube bundle cannot be made into a size matched with the inner diameter of the kettle body section due to the assembly and later-stage integral extraction and maintenance requirements of the tube bundle, so that a larger gap is formed between the baffle plate and the inner wall of the kettle body, and thus liquid leakage is caused from the gap between the baffle plate and the inner wall of the kettle body when shell pass liquid flows in the shell, and the heat transfer coefficient of the shell pass side of the heat exchanger is reduced as shown in the position b of fig. 2, so that the heat exchange efficiency is reduced; in addition, the silk screen demister arranged at the gas outlet at the upper part of the kettle body, as shown in the position a of fig. 1, is internally arranged, so that the area of the silk screen cannot be too large, the size of the silk screen surface is small, liquid foam accumulated in the silk screen in unit area can be increased along with the operation of the equipment under the condition of the same treatment air volume, and the later-stage defoaming effect is reduced.
Disclosure of Invention
The invention aims to provide a novel reboiler for efficiently exchanging heat and removing foam so as to solve the problems in the background technology.
The invention realizes the purpose through the following technical scheme:
a novel reboiler for efficient heat exchange and defoaming comprises a gas-liquid separator, a shell pass shell, a tube pass tube bundle and a baffle plate which are arranged in the shell pass shell, and a rich liquid inlet and a lean liquid outlet which are arranged at the bottom end of the shell pass shell;
the tube side tube bundle is in a overlook U shape in the shell side shell, the overlook U-shaped structure is adopted for the tube side tube bundle, the phenomenon that the lower part of the shell is reserved with a gas phase space which is the same as the upper part of the shell due to the fact that the tube side tube bundle is vertically arranged in a U shape is avoided, liquid is prevented from leaking from the lower part space, a gas phase area is arranged above the tube side tube bundle, the gas phase area is located in the upper area inside the shell side shell, and enough gas phase space can meet the process requirements;
the baffle plates are linearly arranged on the tube pass tube bundle and are in a single-arch gap vertical shape, so that liquid can be baffled left and right in the shell pass shell along the gaps of the baffle plates;
the gas-liquid separator is located the outside of shell side casing, the bottom of gas-liquid separator connects the top of shell side casing through a plurality of groups gas tube group, and the gas tube group includes two gas risers, all installs oblique grid tray in every gas riser, gas-liquid separator's inside is equipped with the gas-liquid filter screen, gas-liquid separator's top is equipped with gas outlet, and gas rises and arrives the gas-liquid filter screen through gas riser, oblique grid tray, filters liquid, and liquid is gaseous from gas outlet discharge because gravity stops in equipment.
As a further optimization scheme of the invention, the shell pass shell is cylindrical, the front inner diameter and the rear inner diameter of the shell pass shell are consistent, the outer diameter of the baffle plate is convenient to be manufactured into a size matched with the inner diameter of the shell pass shell according to the existing standard requirement, and liquid leakage from a gap between the baffle plate and the inner wall of the shell is avoided when liquid flows in the shell pass shell.
As a further optimization scheme of the invention, the number of the baffle plates is an odd number of at least three groups, the directions of the N group of baffle plates and the (N + 1) th group of baffle plates are bilaterally symmetrical along the central axis of the shell pass shell, and N is an odd number.
As a further preferred aspect of the invention, the draft tube is oriented vertically upward.
As a further optimization scheme of the invention, the inclined grid plates in the two gas lifting pipes of the gas lifting pipe group are opposite in inclination direction.
As a further optimization scheme of the invention, the number of the gas lift tube groups is at least two.
As a further optimization scheme of the invention, a saddle is arranged between the bottom end of the gas-liquid separator and the top end of the shell side shell to support and fix the gas-liquid separator.
The invention has the beneficial effects that:
1. the invention improves the heat transfer coefficient of the shell side of the heat exchanger, thereby improving the heat exchange efficiency and reducing the heat exchange area, thereby reducing the overall dimension of the equipment and reducing the occupied area of the equipment.
2. The invention can efficiently remove liquid foam carried in the gas and improve the purity of the gas.
3. The invention fully utilizes space resources and reduces the floor space of the whole unit.
Drawings
FIG. 1 is a schematic view of the internal structure of a conventional kettle reboiler;
FIG. 2 is a cross-sectional schematic view of FIG. 1;
FIG. 3 is a schematic diagram of the internal structure of the novel reboiler for high-efficiency heat exchange and defoaming provided by the invention;
FIG. 4 is a schematic view of a portion of the structure of FIG. 3;
FIG. 5 is a cross-sectional view taken along plane A-A of FIG. 3;
FIG. 6 is a top view of the tube bundle in the tube pass of the new reboiler for high efficiency heat exchange and defoaming provided by the present invention;
fig. 7 is a sectional view taken along the plane B-B of fig. 3.
In the figure: 1. a shell-side shell; 2. a gas-liquid separator; 3. a tube side tube bundle; 4. a baffle plate; 5. a rich liquid inlet; 6. a barren liquor outlet; 7. a gas phase zone; 8. a gas lift pipe; 9. a slanted grid plate; 10. a gas-liquid filter screen; 11. a gas outlet; 12. a saddle seat.
Detailed Description
The present application will now be described in further detail with reference to the drawings, it should be noted that the following detailed description is given for illustrative purposes only and is not to be construed as limiting the scope of the present application, as those skilled in the art will be able to make numerous insubstantial modifications and adaptations to the present application based on the above disclosure.
As shown in fig. 3, the novel reboiler for efficient heat exchange and defoaming of this embodiment includes a gas-liquid separator 2 and a shell side shell 1, a tube side tube bundle 3 and a baffle plate 4 disposed in the shell side shell 1, and a rich solution inlet 5 and a lean solution outlet 6 disposed at the bottom end of the shell side shell 1, a heat source medium flows in the tube side tube bundle 3, a rich solution flows in the shell side shell 1, the heat source medium and the rich solution exchange heat through the wall surface of the tube bundle, that is, the rich solution absorbs heat of the heat source medium, after the rich solution absorbs heat, dissolved gaseous substances are resolved, become gas and are discharged from the upper portion, and the dosage of resolved gaseous substances is proportional to the absorbed heat.
As shown in fig. 6, the tube-side tube bundle 3 is in a U shape in plan view in the shell-side shell 1, the tube-side tube bundle 3 adopts a U-shaped structure in plan view to avoid that the lower part of the shell is left with the same gas phase space as the upper part due to the vertical U-shaped arrangement of the tube-side tube bundle 3, so as to avoid the phenomenon that liquid leaks from the lower space, as shown in fig. 3 and 7, a gas phase area 7 is arranged above the tube-side tube bundle 3, the gas phase area 7 is located in the upper area inside the shell-side shell 1, and enough gas phase space can meet the process requirements;
as shown in fig. 5, the baffle plates 4 are linearly arranged on the tube-side tube bundle 3, the baffle plates 4 are vertical with a single-arch gap, the number of the baffle plates 4 is odd numbers of at least three groups, the number of the baffle plates 4 is 13 groups in the embodiment, the directions of the N group of baffle plates 4 and the N +1 group of baffle plates 4 are bilaterally symmetrical along the central axis of the shell-side shell 1, N is an odd number, and liquid can be baffled left and right in the shell-side shell 1 along the gap of the baffle plates.
The novel reboiler with high-efficiency heat exchange and defoaming can improve the heat transfer coefficient of the shell side, thereby improving the heat exchange efficiency and reducing the heat exchange area, so that the overall dimension of the equipment is reduced, and the floor area of the equipment is reduced;
as shown in fig. 4 and 7, the gas-liquid separator 2 is located outside the shell-side shell 1, the bottom end of the gas-liquid separator 2 is connected to the top end of the shell-side shell 1 through a plurality of gas-raising tube sets, each gas-raising tube set comprises two gas-raising tubes 8, the gas-raising tubes 8 face vertically upwards, each gas-raising tube 8 is internally provided with an inclined grid plate 9, in the embodiment, the number of the gas-raising tube sets is two, the length of each gas-raising tube 8 is preferably 1.2 m, the inclined grid plates 9 in the two gas-raising tubes 8 of the gas-raising tube sets are opposite in inclination direction, a gas-liquid filter screen 10 is arranged inside the gas-liquid separator 2, the top end of the gas-liquid separator 2 is provided with a gas outlet 11, during the rising process of the gas generated in the shell-side shell 1 in the gas-raising tube 8, the liquid foam entrained in the gas falls back into the shell-side shell 1 due to the effect of its own gravity, the first coarse, the gas-liquid separation effect is improved, then the gas enters the gas-liquid separator 2, the gas velocity is reduced because the gas-facing surface of the gas-liquid separator 2 is far larger than the flow area of the gas-lift pipe 8, so that liquid foam entrained in the gas can be subjected to secondary coarse separation due to the reduction of the velocity and the action of the gravity of the gas, finally the gas enters the gas-liquid filter screen 10 to realize tertiary fine separation of the liquid foam, and the gas-facing surface of the gas-liquid filter screen 10 is larger, so that the liquid foam accumulated in the screen per unit area is less under the condition of the same gas treatment amount, and the subsequent defoaming is facilitated;
as shown in fig. 3 and 4, a saddle 12 is provided between the bottom end of the gas-liquid separator 2 and the top end of the shell-side shell 1, and cooperates with the gas lift tube assembly to support and fix the gas-liquid separator 2, so that the gas-liquid separator and the shell-side shell 1 are integrated, space resources are utilized, and the floor space of the whole unit is reduced.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (7)
1. The utility model provides a novel reboiler of high-efficient heat transfer defoaming, includes vapour and liquid separator and shell side casing, and locates tube side tube bank and baffling board in the shell side casing to and locate rich solution import and the barren liquor export of shell side casing bottom, its characterized in that:
the tube side tube bundle is in a overlook U shape in the shell side shell, a gas phase area is arranged above the tube side tube bundle, and the gas phase area is positioned in an upper area in the shell side shell;
the baffle plates are linearly arranged on the tube pass tube bundle and are in a single-arch gap vertical shape;
the gas-liquid separator is located outside the shell side shell, the bottom of the gas-liquid separator is connected with the top end of the shell side shell through a plurality of gas lifting pipe groups, each gas lifting pipe group comprises two gas lifting pipes, each gas lifting pipe is internally provided with an inclined grid plate, a gas-liquid filter screen is arranged inside the gas-liquid separator, and a gas outlet is formed in the top end of the gas-liquid separator.
2. The reboiler with high efficiency heat exchange and defoaming function as claimed in claim 1, wherein said shell side shell is cylindrical and has a uniform inner diameter in front and back.
3. The novel reboiler with high efficiency heat exchange and defoaming function as claimed in claim 1, wherein the number of the baffle plates is an odd number of at least three groups, the directions of the N group of baffle plates and the (N + 1) th group of baffle plates are bilaterally symmetrical along the central axis of the shell pass shell, and N is an odd number.
4. The reboiler for high efficiency heat exchange froth removal according to claim 1 wherein said draft tube is oriented vertically upward.
5. The reboiler with high heat exchange and defoaming efficiency as claimed in claim 1, wherein the inclined grid plates in the two gas lifting pipes of the gas lifting pipe group are inclined in opposite directions.
6. The reboiler for high efficiency heat exchange and defoaming as claimed in claim 1, wherein the number of said riser groups is at least two.
7. The reboiler with high efficiency heat exchange and defoaming function as claimed in claim 1, characterized in that a saddle is provided between the bottom of the gas-liquid separator and the top of the shell side shell to support and fix the gas-liquid separator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010771044.XA CN112007369A (en) | 2020-08-04 | 2020-08-04 | Novel reboiler of foam is removed in high-efficient heat transfer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010771044.XA CN112007369A (en) | 2020-08-04 | 2020-08-04 | Novel reboiler of foam is removed in high-efficient heat transfer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112007369A true CN112007369A (en) | 2020-12-01 |
Family
ID=73499893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010771044.XA Pending CN112007369A (en) | 2020-08-04 | 2020-08-04 | Novel reboiler of foam is removed in high-efficient heat transfer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112007369A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4179328A (en) * | 1978-01-13 | 1979-12-18 | Smith Industries, Inc. | Method and apparatus for injecting stripping gas into the reboiler section of a glycol reboiler |
| CN202609956U (en) * | 2012-05-07 | 2012-12-19 | 中国电力工程顾问集团华北电力设计院工程有限公司 | Flue gas denitration steady-flow urea hydrolysis ammonia preparation reactor |
| CN206772094U (en) * | 2017-04-01 | 2017-12-19 | 中石化南京工程有限公司 | A kind of combination heat transmission equipment in ORC electricity generation systems |
| CN208567591U (en) * | 2018-10-24 | 2019-03-01 | 苏州圣汇装备有限公司 | Heavy aromatics tower reboiler |
| CN208998578U (en) * | 2018-09-29 | 2019-06-18 | 天津中福环保科技股份有限公司 | A kind of processing high solidifying point material condenser trap integrated equipment |
| CN209131444U (en) * | 2018-10-24 | 2019-07-19 | 苏州圣汇装备有限公司 | The heat exchanging part package assembly of heavy aromatics tower reboiler |
-
2020
- 2020-08-04 CN CN202010771044.XA patent/CN112007369A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4179328A (en) * | 1978-01-13 | 1979-12-18 | Smith Industries, Inc. | Method and apparatus for injecting stripping gas into the reboiler section of a glycol reboiler |
| CN202609956U (en) * | 2012-05-07 | 2012-12-19 | 中国电力工程顾问集团华北电力设计院工程有限公司 | Flue gas denitration steady-flow urea hydrolysis ammonia preparation reactor |
| CN206772094U (en) * | 2017-04-01 | 2017-12-19 | 中石化南京工程有限公司 | A kind of combination heat transmission equipment in ORC electricity generation systems |
| CN208998578U (en) * | 2018-09-29 | 2019-06-18 | 天津中福环保科技股份有限公司 | A kind of processing high solidifying point material condenser trap integrated equipment |
| CN208567591U (en) * | 2018-10-24 | 2019-03-01 | 苏州圣汇装备有限公司 | Heavy aromatics tower reboiler |
| CN209131444U (en) * | 2018-10-24 | 2019-07-19 | 苏州圣汇装备有限公司 | The heat exchanging part package assembly of heavy aromatics tower reboiler |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105854425A (en) | Deep dedusting and defogging device | |
| CN112007369A (en) | Novel reboiler of foam is removed in high-efficient heat transfer | |
| CN201488415U (en) | Centrifugal oil separator of water chilling unit | |
| CN203389486U (en) | Efficient vapor-liquid separator | |
| CN106415174B (en) | Condenser-reboiler system and method | |
| CN214841811U (en) | High-efficiency energy-saving vertical shell-and-tube condenser | |
| CN206113724U (en) | Shell -and -tube high -efficiency heat exchanger | |
| CN205672674U (en) | A kind of degree of depth dedusting demister | |
| CN213202997U (en) | White spirit production distillation plant | |
| CN212039660U (en) | Steam-water separation device for methanol hydrogen production | |
| CN201438060U (en) | Shell and tube type condenser used for heat reclaim | |
| CN108744895A (en) | A kind of eddy flow tower | |
| CN210861052U (en) | Thermal deaerator | |
| CN208865390U (en) | A kind of lower resistance removes oil cooler | |
| CN209646237U (en) | A kind of device for catalytic treatment for solvent recovery exhaust gas | |
| CN209386275U (en) | A kind of coil tubes condensing coal economizer | |
| CN220110605U (en) | Novel shell side gas-liquid separator | |
| CN106766673A (en) | Condenser reboiler system and method with perforation delivery pipe | |
| CN208688302U (en) | A kind of pharmaceutical purpose material cooler using air cooling mode | |
| CN218794031U (en) | A high-efficient demister for evaporating equipment vapour and liquid separator | |
| CN215506208U (en) | Oil-gas separation device for RTO (regenerative thermal oxidizer) flue gas pipeline | |
| CN218221687U (en) | Gas-liquid separation tower and water electrolysis hydrogen production equipment | |
| CN217367193U (en) | Plate-type rectifying tower for chemical industry | |
| CN214218244U (en) | Defogging device for waste water and waste liquid evaporation concentration treatment process | |
| CN217246841U (en) | Gas-liquid turbulent flow guiding rectifying tower |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201201 |
|
| RJ01 | Rejection of invention patent application after publication |