CN114028831A - Sleeve type desulfurization slurry flash evaporation heat extraction system and working method thereof - Google Patents
Sleeve type desulfurization slurry flash evaporation heat extraction system and working method thereof Download PDFInfo
- Publication number
- CN114028831A CN114028831A CN202111449971.0A CN202111449971A CN114028831A CN 114028831 A CN114028831 A CN 114028831A CN 202111449971 A CN202111449971 A CN 202111449971A CN 114028831 A CN114028831 A CN 114028831A
- Authority
- CN
- China
- Prior art keywords
- desulfurization slurry
- cooling water
- inlet pipe
- extraction system
- tower body
- 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
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/06—Flash distillation
-
- 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
- B01D3/007—Energy recuperation; Heat pumps
-
- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
-
- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/80—Semi-solid phase processes, i.e. by using slurries
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a sleeve type desulfurization slurry flash evaporation heat extraction system and a working method thereof, wherein the sleeve type desulfurization slurry flash evaporation heat extraction system comprises a tower body; the tower body is a cylinder, the inside of the tower body comprises an inner cylinder and an outer cylinder which are coaxial, the bottoms of the inner cylinder and the outer cylinder are arranged at intervals, and the tops of the inner cylinder and the outer cylinder are communicated; the inner cylinder is provided with a desulfurization slurry liquid inlet pipe and a cold slurry liquid outlet pipe, and the desulfurization slurry liquid inlet pipe is positioned above the cold slurry liquid outlet pipe; the outer cylinder is provided with a vacuumizing pipeline, a cooling water inlet pipe and a cooling water outlet pipe, and the cooling water inlet pipe is positioned above the cooling water outlet pipe; a vacuum pump is arranged in the vacuumizing pipeline. The flow stroke of the cold slurry is shortened, and the blockage of the cold slurry is avoided.
Description
Technical Field
The invention belongs to the field of desulfurization slurry flash evaporation, and relates to a sleeve type desulfurization slurry flash evaporation heat extraction system and a working method thereof.
Background
The desulfurization slurry flash evaporation heat extraction technology establishes a vacuum phase change environment, so that the desulfurization slurry above the current negative pressure saturation temperature is subjected to flash evaporation, negative pressure steam is generated and carried with vaporization latent heat to be conveyed into an absorption heat pump to be condensed and released heat to a low-temperature medium, and the characteristic that the boiling point of the slurry in the wet flue gas desulfurization process is reduced along with the reduction of the environmental pressure is utilized.
However, in the existing desulfurization slurry flash evaporation heat extraction technology, after the desulfurization slurry is subjected to flash evaporation, the cold slurry flows slowly, the flowing stroke is long, and the blockage is easy to occur.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a sleeve type desulfurization slurry flash evaporation heat-extraction system and a working method thereof, which can shorten the flowing stroke of cold slurry and avoid the blockage of the cold slurry.
In order to achieve the purpose, the invention adopts the following technical scheme to realize the purpose:
a sleeve type desulfurization slurry flash evaporation heat extraction system comprises a tower body;
the tower body is a cylinder, the inside of the tower body comprises an inner cylinder and an outer cylinder which are coaxial, the bottoms of the inner cylinder and the outer cylinder are arranged at intervals, and the tops of the inner cylinder and the outer cylinder are communicated;
the inner cylinder is provided with a desulfurization slurry liquid inlet pipe and a cold slurry liquid outlet pipe, and the desulfurization slurry liquid inlet pipe is positioned above the cold slurry liquid outlet pipe;
the outer cylinder is provided with a vacuumizing pipeline, a cooling water inlet pipe and a cooling water outlet pipe, and the cooling water inlet pipe is positioned above the cooling water outlet pipe; a vacuum pump is arranged in the vacuumizing pipeline.
Preferably, a plurality of cooling water inlet pipes are uniformly distributed on the outer cylinder along the circumferential direction.
Preferably, the number of the cooling water inlet pipes is four.
Preferably, desulfurization slurry feed liquor pipe level sets up, and its length direction equipartition has a plurality of first exports on the desulfurization slurry feed liquor pipe, and first export sets up towards tower body bottom.
Further, a first nozzle is connected to each first outlet.
Preferably, the cooling water inlet pipe level sets up, and it has a plurality of second exports to follow its length direction equipartition on the cooling water inlet pipe, and the second export sets up towards the tower body bottom.
Further, a second nozzle is connected to each second outlet.
Preferably, a demister is arranged in the inner barrel and is positioned above the desulfurization slurry liquid inlet pipe.
Preferably, the front end of the vacuumizing pipeline is communicated with the inside of the outer barrel, and water-stop plates are arranged in front of and above the front end of the vacuumizing pipeline.
A working method of a sleeve type desulfurization slurry flash evaporation heat-extraction system based on any one of the above processes comprises the following steps:
the inside of the tower body is pumped into a negative pressure environment by a vacuum pump, the desulfurization slurry is injected into the inner cylinder by the desulfurization slurry inlet pipe, the desulfurization slurry is subjected to flash evaporation, and water vapor flashed out by the inner cylinder enters the outer cylinder from the top of the tower body; and a cooling water inlet pipe injects cooling water into the outer cylinder, the water vapor flashed out is cooled and condensed, and is mixed with the water vapor and then discharged out of the tower body from a cooling water outlet pipe.
Compared with the prior art, the invention has the following beneficial effects:
the inner cylinder is set as the slurry cylinder, so that the flow stroke of cold slurry is shortened, the cold slurry can be effectively prevented from being blocked, and the tower body adopts a sleeve type structure, so that the occupied area of a flash evaporation heat extraction system is reduced, and the space utilization rate of the flash evaporation heat extraction system is improved.
Furthermore, the outer barrel is a cooling water barrel, a plurality of cooling water inlet pipes are uniformly arranged along the circumferential direction of the outer barrel, the heat exchange efficiency can be improved, and the waste heat of flash steam can be fully recovered.
Drawings
FIG. 1 is a schematic diagram of the system of the present invention.
Wherein: 1-a tower body; 2-a demister; 3-cooling water inlet pump; 4-desulfurization slurry inlet pipe; 5-a first nozzle; 6-slurry pump; 7-cooling water inlet pipe; 8-a vacuum pump; 9-a cooling water outlet pump; 10-a second nozzle; 11-a water-stop sheet; 12-Cold slurry Pump.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings:
as shown in figure 1, the sleeve type desulfurization slurry flash evaporation heat-extraction system comprises a sleeve type tower body 1.
The tower body 1 is a cylinder, the tower body 1 is internally provided with an inner cylinder and an outer cylinder which are coaxial, the inner cylinder is a slurry cylinder, the outer cylinder is a cooling water cylinder, the bottoms of the inner cylinder and the outer cylinder are arranged at intervals, the tops of the inner cylinder and the outer cylinder are communicated, and the diameter of the outer cylinder is twice that of the inner cylinder.
The inner cylinder is provided with a desulfurization slurry liquid inlet pipe 4 and a cold slurry liquid outlet pipe, and the desulfurization slurry liquid inlet pipe 4 is positioned above the cold slurry liquid outlet pipe.
Desulfurization slurry feed liquor pipe 4 level sets up, and its length direction equipartition has a plurality of first exports on desulfurization slurry feed liquor pipe 4, and first export sets up towards 1 bottom of tower body, and every first export all is connected with a first nozzle 5.
Be provided with defroster 2 in the inner tube, defroster 2 is located the top of desulfurization thick liquid feed pipe 4.
The outer cylinder is provided with a vacuum-pumping pipeline, a cooling water inlet pipe 7 and a cooling water outlet pipe, and the cooling water inlet pipe 7 is positioned above the cooling water outlet pipe.
A vacuum pump 8 is arranged in the vacuumizing pipeline, the vacuum pump 8 is used for vacuumizing the tower body 1, the front end of the vacuumizing pipeline is communicated with the inside of the outer barrel, and a water-stop sheet 11 is arranged in front of and above the front end of the vacuumizing pipeline.
The cooling water inlet pipe 7 level sets up, and it has a plurality of second exports to follow its length direction equipartition on the cooling water inlet pipe 7, and the second export sets up towards 1 bottom of tower body, and every second export all is connected with a second nozzle 10.
The urceolus has a plurality of cooling water inlet pipes 7 along the circumference equipartition, and in this embodiment, cooling water inlet pipe 7 quantity is four, can improve heat exchange efficiency, fully retrieves flash steam waste heat.
The desulfurization slurry liquid inlet pipe 4 and the cooling water inlet pipe 7 are respectively connected with a slurry pump 6 and a cooling water inlet pump 3; the cold slurry outlet pipe and the cooling water outlet pipe are respectively connected with a cold slurry pump 12 and a cooling water outlet pump 9.
The working process of the sleeve type desulfurization slurry flash evaporation heat-extraction system comprises the following steps:
the vacuum pump 8 extracts the interior of the tower body 1 to be in a negative pressure environment, the desulfurization slurry liquid inlet pipe 4 is pressurized by the slurry pump 6, the desulfurization slurry liquid inlet pipe 4 injects desulfurization slurry from the desulfurization tower into the inner cylinder, the desulfurization slurry liquid inlet pipe is sprayed and crushed into small liquid drops through the first nozzle 5, the desulfurization slurry liquid drops are subjected to flash evaporation, and water vapor flash evaporated from the inner cylinder enters the outer cylinder from the top of the tower body 1 after being demisted by the demister 2; the cooled cold slurry is collected in the inner cylinder, flows out of the cold slurry outlet pipe, is pressurized by the cold slurry pump 12, and then returns to the desulfurization tower.
After the cooling water inlet pipe 7 is boosted by the cooling water inlet pump 3, the cooling water is injected into the outer cylinder from the cooling water inlet pipe 7, the cooling water is sprayed and crushed into small liquid drops through the second nozzle 10, the water vapor flashed out is cooled and condensed, and is gathered at the lower part of the outer cylinder after being mixed with the small liquid drops, and the condensed liquid drops are discharged out of the tower body 1 from the cooling water outlet pipe and are returned after being boosted by the cooling water outlet pump 9.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the embodiments of the invention without departing from the spirit and scope of the invention, which is to be covered by the claims.
Claims (10)
1. A sleeve type desulfurization slurry flash evaporation heat-extraction system is characterized by comprising a tower body (1);
the tower body (1) is a cylinder, the inside of the tower body (1) comprises an inner cylinder and an outer cylinder which are coaxial, the bottoms of the inner cylinder and the outer cylinder are arranged at intervals, and the tops of the inner cylinder and the outer cylinder are communicated;
the inner cylinder is provided with a desulfurization slurry liquid inlet pipe (4) and a cold slurry liquid outlet pipe, and the desulfurization slurry liquid inlet pipe (4) is positioned above the cold slurry liquid outlet pipe;
the outer cylinder is provided with a vacuum-pumping pipeline, a cooling water inlet pipe (7) and a cooling water outlet pipe, and the cooling water inlet pipe (7) is positioned above the cooling water outlet pipe; a vacuum pump (8) is arranged in the vacuumizing pipeline.
2. The telescopic desulfurization slurry flash evaporation heat-extraction system according to claim 1, characterized in that a plurality of cooling water inlet pipes (7) are uniformly distributed along the circumference of the outer cylinder.
3. The flash evaporation heat-extraction system for sleeve-type desulfurization slurry according to claim 1, characterized in that the number of the cooling water inlet pipes (7) is four.
4. A sleeve type desulfurization slurry flash evaporation heat extraction system according to claim 1, characterized in that the desulfurization slurry inlet pipe (4) is horizontally arranged, and a plurality of first outlets are uniformly distributed on the desulfurization slurry inlet pipe (4) along the length direction thereof, and the first outlets are arranged towards the bottom of the tower body (1).
5. A flash vaporization heat extraction system for a sleeve-type desulfurization slurry according to claim 4, characterized in that one first nozzle (5) is connected to each first outlet.
6. A sleeve type desulfurization slurry flash evaporation heat-extraction system according to claim 1, characterized in that the cooling water inlet pipe (7) is horizontally arranged, a plurality of second outlets are uniformly distributed on the cooling water inlet pipe (7) along the length direction thereof, and the second outlets are arranged towards the bottom of the tower body (1).
7. A flash vaporization heat removal system for a sleeve-type desulfurization slurry according to claim 6, characterized in that one second nozzle (10) is connected to each second outlet.
8. A sleeve type desulfurization slurry flash evaporation heat extraction system according to claim 1, characterized in that a demister (2) is arranged in the inner cylinder, and the demister (2) is positioned above the desulfurization slurry liquid inlet pipe (4).
9. The flash evaporation heat-extraction system for sleeve-type desulfurized slurry according to claim 1, wherein the front end of the vacuuming pipe is communicated with the inside of the outer cylinder, and water-stop plates (11) are arranged in front of and above the front end of the vacuuming pipe.
10. A method for operating a sleeve-type desulfurization slurry flash-evaporation heat-extraction system based on any one of claims 1 to 9, which is characterized by comprising the following steps:
the inside of the tower body (1) is pumped into a negative pressure environment by a vacuum pump (8), the desulfurization slurry is injected into the inner cylinder by a desulfurization slurry liquid inlet pipe (4), the desulfurization slurry is subjected to flash evaporation, and water vapor flashed out from the inner cylinder enters the outer cylinder from the top of the tower body (1); and a cooling water inlet pipe (7) injects cooling water into the outer cylinder, cools and condenses the water vapor flashed out, mixes the water vapor with the water vapor and then discharges the water vapor out of the tower body (1) through a cooling water outlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111449971.0A CN114028831A (en) | 2021-11-30 | 2021-11-30 | Sleeve type desulfurization slurry flash evaporation heat extraction system and working method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111449971.0A CN114028831A (en) | 2021-11-30 | 2021-11-30 | Sleeve type desulfurization slurry flash evaporation heat extraction system and working method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114028831A true CN114028831A (en) | 2022-02-11 |
Family
ID=80139426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111449971.0A Pending CN114028831A (en) | 2021-11-30 | 2021-11-30 | Sleeve type desulfurization slurry flash evaporation heat extraction system and working method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114028831A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023097892A1 (en) * | 2021-11-30 | 2023-06-08 | 中国华能集团清洁能源技术研究院有限公司 | Three-layer sleeve type desulfurization slurry flash evaporation heat extraction system and operation method thereof |
-
2021
- 2021-11-30 CN CN202111449971.0A patent/CN114028831A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023097892A1 (en) * | 2021-11-30 | 2023-06-08 | 中国华能集团清洁能源技术研究院有限公司 | Three-layer sleeve type desulfurization slurry flash evaporation heat extraction system and operation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105731572A (en) | Novel heat pump evaporation heat recovery combined device and efficient effluent concentration method | |
| CN102502901B (en) | Condensed fluid stripping method matched with CO transforming device | |
| CN106050331A (en) | Cooling method and device for exhaust steam of generator set | |
| CN114028831A (en) | Sleeve type desulfurization slurry flash evaporation heat extraction system and working method thereof | |
| CN114014402A (en) | Vertical-layout desulfurization slurry flash evaporation heat extraction system and working method thereof | |
| CN205549656U (en) | Gaseous state solvent condensation recovery device | |
| CN114028829A (en) | Single-cylinder desulfurization slurry flash evaporation heat extraction system and working method thereof | |
| CN104457317A (en) | Stand-pipe indirect-direct two-stage evaporative cooling tower | |
| CN103301717B (en) | Double-tower integrated recovery device and method for micro-acetone-contained air | |
| CN216653426U (en) | Sleeve type desulfurization slurry flash evaporation heat extraction system | |
| CN107088313A (en) | Economic benefits and social benefits concentration systems and traditional Chinese medicine extraction system | |
| CN204275521U (en) | A kind of liquid ammonia gasification dry evaporator | |
| CN217409770U (en) | Horizontal flash tank for flash evaporation of desulfurization slurry | |
| CN216653425U (en) | Single-cylinder type desulfurization slurry flash evaporation heat extraction system | |
| CN206051889U (en) | M1 tower vapor condensation systems are taken off in a kind of DMMn refining plants | |
| CN103185362A (en) | Low-position straight heating machine | |
| CN109529403A (en) | Energy-saving dual-use traditional Chinese medicine extraction, concentrator | |
| CN109798692A (en) | A kind of air-cooled and wet type cooling unit mixed running system | |
| CN214403691U (en) | Inside and outside spraying of direct air cooling unit pipeline is carried vacuum apparatus jointly | |
| CN205500825U (en) | Novel heat pump evaporation heat recovery combination device | |
| CN209548763U (en) | Energy-saving dual-use traditional Chinese medicine extraction, concentrator | |
| CN212227824U (en) | Straight-through phase change heat exchange device | |
| CN211752569U (en) | Multistage series horizontal tube falling film TVR steam jet evaporator | |
| CN203768378U (en) | Slag washing wastewater and steam recycling system | |
| CN216273199U (en) | Desulfurization slurry flash evaporation heat extraction system with vertical layout |
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 |