CN215462120U - Recycling system of high-temperature condensate of shift gas - Google Patents
Recycling system of high-temperature condensate of shift gas Download PDFInfo
- Publication number
- CN215462120U CN215462120U CN202121394511.8U CN202121394511U CN215462120U CN 215462120 U CN215462120 U CN 215462120U CN 202121394511 U CN202121394511 U CN 202121394511U CN 215462120 U CN215462120 U CN 215462120U
- Authority
- CN
- China
- Prior art keywords
- gas
- condensate
- liquid separator
- heat exchanger
- water heat
- 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.)
- Active
Links
Images
Landscapes
- Industrial Gases (AREA)
Abstract
A system for recycling shift gas high temperature condensate, comprising: the system comprises a first gas-liquid separator, a second gas-liquid separator and a chilling water heat exchanger, wherein a conversion gas inlet, a conversion gas outlet and a condensate outlet are arranged on the first gas-liquid separator, the second gas-liquid separator and the chilling water heat exchanger; the bottom of the condensate transfer tank is conveyed to a washing tower through a condensate conveying pump; and condensate outlets of the first gas-liquid separator, the second gas-liquid separator and the chilled water heat exchanger are connected to the condensate transfer tank. The utility model adopts the condensate transfer tank to collect three high-temperature condensates, namely two gas-liquid separators and a desalted water heater, and then the condensate is pressurized by the condensate delivery pump and is sent into the gasification washing tower to wash carbon black, thereby avoiding the potential safety hazard of directly discharging the condensate, and simultaneously achieving the purpose of recycling.
Description
Technical Field
The utility model relates to the technical field of fertilizer production, in particular to a recycling system for high-temperature condensate of shift gas.
Background
Synthetic ammonia is an important process for fertilizer production, and is fed by nitrogen from an air separation process and hydrogen from water gas. When preparing water gas, the qualified oxygen from the air separation post is sprayed out at high speed through a nozzle, is mixed and atomized with the water coal slurry from the pulping post in a parallel flow manner, and undergoes the processes of coal slurry temperature rise, water evaporation, coal pyrolysis volatilization, residual carbon gasification, chemical reaction among gases and the like instantly in a gasification furnace to finally generate CO and H2The crude water gas (or synthesis gas and process gas) which is the main component is the main raw material gas for the anhydrous ammonia reaction of the synthetic liquid. The crude water gas is used for producing H2 and CO by the reaction of CO and water vapor carried by the CO in a shift converter under the conditions of high temperature and high pressure2While releasing heat.
Wherein, after the reaction in the converter is finished, the temperature of the converter is higher (about 280 ℃) and still contains a large amount of high-temperature steam. In order to meet the temperature requirement (about 35 ℃) for the next process, the temperature of the converted gas after the second conversion from the converter is required to be reduced to the temperature required by the process.
In the prior art, part of the converted gas is cooled by a waste heat boiler of 0.5Mpa and a chilling water heater, and then part of steam is condensed and liquefied and then is separated and discharged by a No. 1 gas-water separator; cooling the other part of the converted gas by a waste heat boiler of 0.15Mpa, and separating and discharging the condensate by a No. 2 gas-water separator; the transformed gas is cooled by a desalted water heater and then the condensate is discharged; and finally, cooling the converted gas by a circulating water cooler, discharging the condensate by a 3# separator, and sending the converted gas to a desulfurization process. A large amount of condensate generated by the process needs to be discharged, otherwise, a water seal can be formed to cause system blockage, and the operation of the subsequent process is influenced by the introduction of a large amount of condensate into the subsequent process. At present, the three strands of condensate has high temperature (above 130 ℃), is directly vaporized when being discharged into a chilling water slag basin, generates a large amount of smoke gas at a discharge port, contains partial converted gas and has toxic and harmful components, and has great potential safety hazard.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing a system for recycling high-temperature condensate of shift gas, eliminating and reducing potential safety hazards caused by direct discharge of high-temperature condensate generated in the shift gas cooling process, and recycling the high-temperature condensate.
The technical scheme adopted by the utility model for solving the technical problem is as follows: a system for recycling shift gas high temperature condensate, comprising:
the system comprises a first gas-liquid separator, a second gas-liquid separator and a chilling water heat exchanger, wherein a conversion gas inlet, a conversion gas outlet and a condensate outlet are arranged on the first gas-liquid separator, the second gas-liquid separator and the chilling water heat exchanger;
the bottom of the condensate transfer tank is conveyed to a washing tower through a condensate conveying pump; and condensate outlets of the first gas-liquid separator, the second gas-liquid separator and the chilled water heat exchanger are connected to the condensate transfer tank.
Preferably, the condensate outlets of the first gas-liquid separator, the second gas-liquid separator and the chilled water heat exchanger are all conveyed to a chilled water slag basin through an on-site discharge pipeline.
The utility model adopts the condensate transfer tank to collect three high-temperature condensates, namely two gas-liquid separators and a desalted water heater, and then the condensate is pressurized by the condensate delivery pump and is sent into the gasification washing tower to wash carbon black, thereby avoiding the potential safety hazard of directly discharging the condensate, and simultaneously achieving the purpose of recycling.
Drawings
FIG. 1 is a schematic structural diagram of a system for recycling shift gas high-temperature condensate in accordance with a preferred embodiment of the present invention;
description of reference numerals: 1. a first gas-liquid separator; 2. a second gas-liquid separator; 3. a chilled water heat exchanger; 4. a condensate transfer tank; 5. an on-site discharge line; 6. a condensate transfer pump;
Detailed Description
The technical scheme of the utility model is clearly and completely described in the following with reference to the accompanying drawings. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance.
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, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The utility model will be further explained with reference to the drawings.
As shown in fig. 1, the system for recycling high-temperature condensate of shift gas comprises a first gas-liquid separator 1, a second gas-liquid separator 2, a chilled water heat exchanger 3, a condensate transfer tank 4, an on-site discharge pipeline 5 and two condensate transfer pumps 6.
Wherein, the chilling water heat exchanger 3 can be a shell-and-tube heat exchanger, and chilling water is introduced into the tube pass of the shell-and-tube heat exchanger. The shell side of the chilled water heat exchanger 3 is provided with a shift gas inlet, a shift gas outlet and a condensate outlet, and the shift gas inlet is fed with shift gas from a shift converter (not shown).
The first gas-liquid separator 1 and the second gas-liquid separator 2 are provided with a conversion gas inlet, the top of the first gas-liquid separator is provided with a conversion gas outlet, and the bottom of the first gas-liquid separator is provided with a condensate outlet. The shift gas inlet of the first gas-liquid separator 1 feeds shift gas from a first waste heat boiler (not shown), and the shift gas inlet of the second gas-liquid separator 2 feeds shift gas from a second waste heat boiler (not shown). The second waste heat boiler and the second waste heat boiler are both connected with the shift converter.
Condensate outlets of the first gas-liquid separator 1, the second gas-liquid separator 2 and the chilled water heat exchanger 3 are connected to a condensate transfer tank. The bottom of the condensate transfer tank 4 is fed via two parallel condensate transfer pumps 6 to a scrubbing column (not shown) of the gasification section for scrubbing carbon black from the synthesis gas.
For convenience of parking and maintenance, preferably, the condensate outlets of the first gas-liquid separator 1, the second gas-liquid separator 2 and the chilled water heat exchanger 3 are all conveyed to a chilled water slag basin (not shown) through an on-site discharge pipeline 5. The foregoing is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be construed as the protection scope of the present invention.
The utility model adopts the condensate transfer tank to collect three high-temperature condensates, namely two gas-liquid separators and a desalted water heater, and then the condensate is pressurized by the condensate delivery pump and is sent into the gasification washing tower to wash carbon black, thereby avoiding the potential safety hazard of directly discharging the condensate, and simultaneously achieving the purpose of recycling.
Other parts of the utility model not described in detail are prior art and are not described in detail herein.
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 utility model 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 (2)
1. A system for recycling high-temperature condensate of shift gas is characterized by comprising:
the system comprises a first gas-liquid separator, a second gas-liquid separator and a chilling water heat exchanger, wherein a conversion gas inlet, a conversion gas outlet and a condensate outlet are arranged on the first gas-liquid separator, the second gas-liquid separator and the chilling water heat exchanger;
the bottom of the condensate transfer tank is conveyed to a washing tower through a condensate conveying pump; and condensate outlets of the first gas-liquid separator, the second gas-liquid separator and the chilled water heat exchanger are connected to the condensate transfer tank.
2. The system for recycling shift gas high temperature condensate of claim 1, wherein the first gas-liquid separator, the second gas-liquid separator and the condensate outlet of the chilled water heat exchanger are all transported to a chilled water slag basin through an in-situ drain line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121394511.8U CN215462120U (en) | 2021-06-22 | 2021-06-22 | Recycling system of high-temperature condensate of shift gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121394511.8U CN215462120U (en) | 2021-06-22 | 2021-06-22 | Recycling system of high-temperature condensate of shift gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215462120U true CN215462120U (en) | 2022-01-11 |
Family
ID=79720926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121394511.8U Active CN215462120U (en) | 2021-06-22 | 2021-06-22 | Recycling system of high-temperature condensate of shift gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215462120U (en) |
-
2021
- 2021-06-22 CN CN202121394511.8U patent/CN215462120U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102502901B (en) | Condensed fluid stripping method matched with CO transforming device | |
| CN101875863B (en) | Waste heat-driven circulative heat-carrying gas methanation technology and device | |
| CN101492398B (en) | Urea production process of high-efficiency condensation, low-mounting height CO2 air stripping method and high-voltage lamp type full condensation reactor | |
| CN112794282A (en) | System and method for producing hydrogen by using sulfur-containing flue gas of boiler | |
| CN102267868A (en) | Industrial production apparatus for trichloroethylene | |
| CN106365164A (en) | Device for preparing high-purity carbon monoxide by pyrolysis of formic acid | |
| CN104353260B (en) | For the combined type condensing unit of vehicular biomass through pyrolysis equipment | |
| CN215462120U (en) | Recycling system of high-temperature condensate of shift gas | |
| CN214114973U (en) | CO conversion condensate refining process system | |
| CN201762266U (en) | Trichloroethylene industrialized production device | |
| CN218115019U (en) | Skid-mounted equipment for producing mixed hydrogen | |
| CN106397104A (en) | Carbon tetrafluoride purification system with nitrogen recycling function | |
| CN104557615B (en) | A kind of process units of urea synthesis solution | |
| CN110143571A (en) | The apparatus and method of the hydrogen manufacturing of environment-friendly type hydrogen sulfide and insoluble sulfur | |
| CN211159192U (en) | Processing apparatus of acid water is retrieved to claus sulphur | |
| CN210522172U (en) | Novel carbon dioxide rectifying tower | |
| CN109022042B (en) | Dry pulverized coal pressure gasification device and process | |
| CN215975682U (en) | Gasification furnace gas washing and purifying system | |
| CN214270276U (en) | Expansion flash steam processing unit of gas-water separation system | |
| CN112479291A (en) | Direct heat exchange black water two-stage waste heat recovery equipment and process | |
| CN220642594U (en) | Novel methanol hydrogen production device | |
| CN215946777U (en) | Co-production system of ammonia, methanol and acetic acid | |
| CN209246740U (en) | A kind of transformation air cooling system of optimization heat exchange | |
| CN112899031B (en) | Method and device for reducing ammonia and hydrocyanic acid content in coal gasification gas | |
| CN214456890U (en) | Tandem type double-ammonia synthesis tower |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |