CN213865793U - Black water treatment system - Google Patents
Black water treatment system Download PDFInfo
- Publication number
- CN213865793U CN213865793U CN202022679806.1U CN202022679806U CN213865793U CN 213865793 U CN213865793 U CN 213865793U CN 202022679806 U CN202022679806 U CN 202022679806U CN 213865793 U CN213865793 U CN 213865793U
- Authority
- CN
- China
- Prior art keywords
- gas
- separator
- condensate
- liquid
- unit
- 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
Abstract
The utility model relates to a gasifier technical field specifically relates to a processing system of black water. The treatment system of this black water includes: the flash evaporation unit can carry out flash evaporation treatment on the black water to obtain treated water and flash evaporation gas; the separation unit comprises a first separator and a second separator, the first separator is communicated with the exhaust port of the flash evaporation unit and can perform cooling treatment on the flash evaporation gas to obtain first condensate and first gas, and the second separator is communicated with the liquid discharge port of the first separator and can perform gas-liquid separation treatment on the first condensate to obtain second condensate and second gas; and the sedimentation unit is communicated with the liquid outlet of the second separator and can perform sedimentation treatment on the second condensate. This processing system of black water is through setting up the separation element for the flash distillation gas discharges into the unit that subsides again after the separation element, and the second separator adopts first condensate to carry out the liquid seal, prevents that first gas from directly scurrying into the subsider, has reduced the number of times of on-the-spot warning.
Description
Technical Field
The utility model relates to a gasifier technical field specifically relates to a processing system of black water.
Background
With the continuous increase of the operation time of the GSP gasification furnace, the GSP gasification furnace gradually exposes to various problems, such as the problems of the influence of the blockage of a synthesis gas pipeline, the high system pressure difference, the fluctuation of a pulverized coal system and the like on the long-period operation, and the problems of the influence of the high slag discharge temperature, the high black water temperature after the flash evaporation of the gasification furnace and the large gas emitting amount of field equipment on the safe operation.
Taking the flash evaporation black water part of the GSP gasification furnace as an example, the flash evaporation gas generated by the flash evaporator of the GSP gasification furnace dissipates heat through a single heat exchanger to obtain condensate and flash evaporation gas, and then the condensate is directly sent to the settling tank without liquid seal, so that the flash evaporation gas frequently enters the settling tank, and the site alarm is caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming prior art and having the GSP gasifier and scurring into the subsider because of the flash distillation gas and leading to frequently report to the police the problem, provide a processing system of black water, this processing system of black water is through setting up the separation unit, make the flash distillation gas arrange into the unit that subsides again after the gas-liquid separation of separation unit handles, and the second separator can adopt the first condensate that the flash distillation gas separation obtained to carry out the liquid seal, prevent that the first gas that the flash distillation gas separation obtained from directly scurries into the subsider, the number of times of on-the-spot warning has been reduced.
In order to achieve the above object, the present invention provides a black water treatment system, comprising: the flash evaporation unit is arranged to carry out flash evaporation treatment on the black water to obtain treated water and flash evaporation gas, and is provided with a liquid outlet for discharging the treated water and an air outlet for discharging the flash evaporation gas; the separation unit comprises a first separator and a second separator, the first separator is communicated with the exhaust port of the flash evaporation unit and can cool the flash evaporation gas to obtain a first condensate and a first gas, the first separator is provided with a liquid discharge port for discharging the first condensate and an exhaust port for discharging the first gas, the second separator is communicated with the liquid discharge port of the first separator and is arranged to be capable of carrying out gas-liquid separation treatment on the first condensate to obtain a second condensate and a second gas, and the second separator is provided with a liquid discharge port for discharging the second condensate and an exhaust port for discharging the second gas; and the sedimentation unit is communicated with a liquid outlet of the second separator and can perform sedimentation treatment on the second condensate.
Optionally, the second separator includes a gas-liquid separation tank for performing gas-liquid separation treatment on the first condensate.
Optionally, the second separator comprises a level gauge for monitoring the level of liquid in the gas condensate separation tank.
Optionally, the liquid level meter is provided as a liquid level pipe, the bottom of which communicates with the bottom of the gas condensate separation tank for introducing the first condensate and measuring the level of the first condensate.
Optionally, the bottom of the liquid level pipe is in on-off communication with the settling unit to adjust the liquid levels of the liquid level pipe and the gas condensate separation tank.
Optionally, the first separator is a heat exchanger.
Optionally, the flash distillation unit includes one-level flash vessel and second grade flash vessel, the gas vent setting of flash distillation unit is in on the one-level flash vessel, the leakage fluid dram of flash distillation unit sets up on the second grade flash vessel, the one-level flash vessel sets up to be able to right black water carries out one-level flash distillation and handles in order to obtain one-level processing water and flash distillation gas, the one-level flash vessel is including supplying one-level processing water exhaust leakage fluid dram, the second grade flash vessel with one-level flash vessel intercommunication and set up to be able to right one-level processing water carries out second grade flash distillation and handles in order to obtain processing water.
Optionally, the treatment system comprises a pumping arrangement disposed between the secondary flash vessel and the settling unit and arranged to be able to pump the treated water to the settling unit.
Optionally, an angle valve is arranged between the liquid outlet of the primary flash evaporator and the secondary flash evaporator.
Optionally, the sedimentation unit includes a circulation water tank and a sedimentation tank communicated with the liquid outlet of the second separator, the sedimentation tank is capable of performing sedimentation treatment on the second condensate to obtain a lower precipitate and an upper clear liquid, and the circulation water tank is communicated with the upper portion of the sedimentation tank and is capable of introducing the upper clear liquid.
Through the technical scheme, the utility model provides a processing system of black water, this processing system of black water can pass through the separation element for flash distillation gas can discharge into again after the gas-liquid separation of separation element handles and subside the unit, and the second separator can adopt the first condensate that flash distillation gas separation obtained to carry out the liquid seal, prevents that the first gas that flash distillation gas separation obtained from directly scurries into the subsider, has reduced the number of times of on-the-spot warning, has guaranteed that processing system of black water can safety and stability's operation.
Drawings
Fig. 1 is a schematic structural diagram of a black water treatment system provided by the present invention.
Description of the reference numerals
1. A flash unit; 2. a primary flash evaporator; 3. a secondary flash evaporator; 4. an angle valve; 5. a first separator; 6. a second separator; 7. a gas condensate separation tank; 8. a liquid level meter; 9. a pumping device; 10. a sedimentation unit; 11. a settling tank; 12. and (4) circulating the water tank.
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.
The utility model provides a processing system of black water, as shown in figure 1, include: the system comprises a flash evaporation unit 1, wherein the flash evaporation unit 1 is arranged to be capable of carrying out flash evaporation treatment on black water to obtain treated water and flash evaporation gas, and the flash evaporation unit 1 is provided with a liquid outlet for discharging the treated water and an exhaust outlet for discharging the flash evaporation gas; a separation unit, wherein the separation unit comprises a first separator 5 and a second separator 6, the first separator 5 is communicated with the gas outlet of the flash evaporation unit 1 and can cool the flash evaporation gas to obtain a first condensate and a first gas, the first separator 5 is provided with a liquid outlet for discharging the first condensate and a gas outlet for discharging the first gas, the second separator 6 is communicated with the liquid outlet of the first separator 5 and is arranged to be capable of performing gas-liquid separation treatment on the first condensate to obtain a second condensate and a second gas, and the second separator 6 is provided with a liquid outlet for discharging the second condensate and a gas outlet for discharging the second gas; and a settling unit 10, wherein the settling unit 10 is communicated with the liquid outlet of the second separator 6 and can perform settling treatment on the second condensate.
Through the technical scheme, the utility model provides a processing system of black water, this processing system of black water is through setting up the separation element, make flash distillation gas process the gas-liquid separation of separation element handle the back and discharge into the unit that subsides again, and the second separator can adopt the first condensate that flash distillation gas separation obtained to carry out the liquid seal, flash distillation gas that produces carries out the gas-liquid separation through single heat exchanger among the prior art after with the condensate that obtains directly deliver to the subsider, the second separator in this application can hold first condensate and carry out the liquid seal through first condensate to flash distillation gas and first separator in the first gas of discharge and handle, prevent that first gas from directly scurrying into the subsider, the number of times of on-the-spot warning has been reduced, the processing system of black water can the operation of safety and stability has been guaranteed.
It is worth mentioning that the black water can be wastewater from coal chemical industry, after the flash evaporation treatment of the flash evaporation unit, gas dissolved in the black water is released to form flash evaporation gas, and the remaining liquid is treated water, wherein the flash evaporation gas can be components such as water vapor, multi-hydrocarbon, hydrogen sulfide and the like; after the flash evaporation gas is subjected to temperature reduction treatment by the first separator 5, components such as part of hydrocarbons with lower boiling points (for example, components such as methane, ethane and the like) and water vapor are converted into a liquid phase, namely a first condensate, and the components such as part of hydrocarbons with higher boiling points and hydrogen sulfide are still in a gas phase, namely a first gas; the first condensate continuously flows into the second separator 6 and blocks the liquid outlet of the second separator 6, so that even if the first gas flows into the second separator 6, the first gas cannot directly flow into the settling tank under the liquid sealing action of the second condensate in the second separator 6, the number of on-site alarms is reduced, most of the gas in the solution of the first condensate is released under the gas-liquid separation action of the second separator 6, namely the second gas, and the rest of the liquid is the second condensate, wherein the main component of the second gas is a part of hydrocarbons (such as propane, butane and the like) and hydrogen sulfide and the like, and of course, components with higher boiling points, such as a small amount of polybasic hydrocarbons (such as pentane and the like) and hydrogen sulfide and the like are still unavoidably dissolved in the second condensate; the second condensate is subjected to a sedimentation treatment in a sedimentation unit 10 to obtain a supernatant and a lower settled solid. In addition, in order to reduce environmental pollution, the first gas and the second gas obtained by flashing can be subjected to a purification treatment through flare evacuation.
In order to sufficiently perform the gas-liquid separation treatment on the first condensate, the second separator 6 includes a gas-liquid separation tank 7 for performing the gas-liquid separation treatment on the first condensate. It is to be noted that the gas-liquid separation tank 7 may take various forms as long as the first condensate can be subjected to gas-liquid separation treatment.
Further, second separator 6 is including being used for the monitoring level gauge 8 of the liquid level height in the gas-condensate knockout drum 7, like this, operating personnel can obtain the liquid level height in the gas-condensate knockout drum 7 at any time, be convenient for operating personnel controls all the time for suitable liquid level height in the gas-condensate knockout drum 7 according to the level gauge, it causes the pressure too high to have prevented that liquid is too much in the gas-condensate knockout drum 7, the safe operation of gas-condensate knockout drum 7 has been guaranteed, still prevent that liquid is too low and can't form effective liquid seal in the gas-condensate knockout drum 7, first gas and flash distillation gas have been prevented effectively and have directly scurried into the settlement unit, the number of times of reporting to the police has been reduced, thereby the safe operation of black water processing system has been ensured.
Further, level gauge 8 sets up to the liquid level pipe, the bottom of liquid level pipe with the bottom intercommunication of aerogel knockout drum 7 is in order to be used for introducing first condensate is and measure the liquid level of first condensate has simplified the overall structure of aerogel knockout drum 7, and is safe convenient, has still enlarged the volume of aerogel knockout drum 7, has improved the treatment effeciency of aerogel knockout drum 7.
Furthermore, the bottom of the liquid level pipe can be communicated with the settling unit 10 in an on-off mode so as to adjust the liquid level of the liquid level pipe and the liquid level of the gas-condensate separation tank 7, so that the liquid level in the gas-condensate separation tank 7 is prevented from being too high, and the gas-condensate separation tank is safer.
During the use, the liquid level height in the gas-liquid separation tank 7 carries out reasonable monitoring through the liquid level pipe, and concrete operation is as follows: when the monitoring result of the liquid level pipe is normal, namely the liquid level height in the gas condensate separation tank 7 is in a reasonable range, a switch valve between the liquid level pipe and the sedimentation unit (namely, the valve which is positioned below the liquid level pipe and is directly communicated with the liquid level pipe through a pipeline and is shown in figure 1) is in a closed state, and the liquid level in the gas condensate separation tank 7 cannot directly flow to the sedimentation unit through the liquid level pipe; when the monitoring result of the liquid level pipe is abnormal, if the liquid level in the gas-liquid separation tank 7 is too high, the switch valve between the liquid level pipe and the settling unit (i.e. the valve which is positioned below the liquid level pipe and is directly communicated with the liquid level pipe through a pipeline as shown in fig. 1) is opened, the second condensate in the gas-liquid separation tank 7 directly flows to the settling unit through the liquid level pipe to prevent the liquid level in the gas-liquid separation tank 7 from being too high, otherwise, the switch valve is closed and the first condensate is introduced from the first separator. It is understood that when the first condensate is subjected to the gas-liquid separation treatment by the gas condensate separating tank 7, the second condensate flows into the settling unit through the gas condensate separating tank 7.
Furthermore, the first separator 5 is a heat exchanger, which is beneficial to efficiently utilizing the waste heat in the flash steam and saves more energy. The heat exchange medium of the heat exchanger can be gas or liquid to be heated in other production procedures of coal chemical industry, and only the heat carried by flash steam can be absorbed.
Further, flash evaporation unit 1 includes one-level flash vessel 2 and second grade flash vessel 3, flash evaporation unit 1's gas vent sets up on the one-level flash vessel 2, flash evaporation unit 1's leakage fluid dram sets up on the second grade flash vessel 3, one-level flash vessel 2 sets up to be able to right black water carries out one-level flash evaporation to be handled in order to obtain one-level processing water and flash evaporation gas, one-level flash vessel 2 is including supplying one-level processing water exhaust leakage fluid dram, second grade flash vessel 3 with one-level flash vessel 2 intercommunication and set up to be able to right one-level processing water carries out second grade flash evaporation and handles in order to obtain processing water has improved the treatment effect of black water, has realized high-efficient purification black water. When the black water is wastewater from coal chemical industry, after flash evaporation treatment by the primary flash evaporator 2, gas dissolved in the black water is released to form flash evaporation gas, and the remaining liquid is primary treatment water, wherein the flash evaporation gas can be components such as water vapor, multi-hydrocarbon, hydrogen sulfide and the like, and the primary treatment water is the remaining liquid; after the primary treated water is subjected to flash evaporation treatment by the secondary flash evaporator 3, residual gas dissolved in the primary treated water is released to leave treated water. It is understood that the treated water still contains a very small amount of dissolved gases and some solid particles, etc. which are inevitable.
Further, the treatment system comprises a pumping device 9, wherein the pumping device 9 is arranged between the secondary flash evaporator 3 and the sedimentation unit 10 and is used for pumping the treatment water to the sedimentation unit 10, so that the treatment water is subjected to sedimentation treatment, and environmental pollution caused by random discharge of wastewater is avoided. The pumping device 9 may be in various forms, such as a water pump, etc.
Further, the leakage fluid dram of one-level flash vessel 2 with be provided with angle valve 4 between the second grade flash vessel 3, safe and durable, adjust more sensitively, compare in adopting the ball valve, the angle valve in this application is difficult to take place the jam, has not only reduced the maintenance cost, can also prevent that high temperature highly compressed flash steam in the one-level flash vessel from scurrying into the second grade flash vessel and influencing the negative pressure and the temperature of second grade flash vessel, has further still prevented to subside the unit rapid heating and the overtemperature phenomenon appears.
Further, the sedimentation unit 10 comprises a circulation water tank 12 and a sedimentation tank 11 communicated with a liquid outlet of the second separator 6, the sedimentation tank 11 can perform sedimentation treatment on the second condensate to obtain a lower sediment and an upper clear liquid, and the circulation water tank 12 is communicated with the upper part of the sedimentation tank 11 and can introduce the upper clear liquid, so that the classification and storage are convenient, and the sedimentation unit is safe and environment-friendly. It is worth mentioning that the supernatant contains almost no solid particles and is cleaner, while the lower sediment contains a variety of solid particles.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited thereto. In the technical idea scope of the present invention, it is possible to provide a solution of the present invention with a plurality of simple modifications to avoid unnecessary repetition, and the present invention is not described separately for various possible combinations. These simple variations and combinations should also be considered as disclosed in the present invention, all falling within the scope of protection of the present invention.
Claims (10)
1. A black water treatment system, comprising:
the device comprises a flash evaporation unit (1), wherein the flash evaporation unit (1) is arranged to be capable of carrying out flash evaporation treatment on black water to obtain treated water and flash evaporation gas, and the flash evaporation unit (1) is provided with a liquid outlet for discharging the treated water and an exhaust outlet for discharging the flash evaporation gas;
a separation unit, wherein the separation unit comprises a first separator (5) and a second separator (6), the first separator (5) is communicated with the exhaust port of the flash evaporation unit (1) and can cool the flash evaporation gas to obtain a first condensate and a first gas, the first separator (5) is provided with a liquid discharge port for discharging the first condensate and an exhaust port for discharging the first gas, the second separator (6) is communicated with the liquid discharge port of the first separator (5) and is arranged to be capable of performing gas-liquid separation treatment on the first condensate to obtain a second condensate and a second gas, and the second separator (6) is provided with a liquid discharge port for discharging the second condensate and an exhaust port for discharging the second gas; and
a settling unit (10), the settling unit (10) being in communication with the liquid discharge of the second separator (6) and being capable of settling the second condensate.
2. The black water treatment system according to claim 1, wherein the second separator (6) comprises an aerogel separation tank (7) for subjecting the first condensate to a gas-liquid separation treatment.
3. The black water treatment system according to claim 2, wherein the second separator (6) comprises a level meter (8) for monitoring a liquid level in the gas condensate separation tank (7).
4. The black water treatment system according to claim 3, wherein the liquid level meter (8) is provided as a liquid level pipe, the bottom of which communicates with the bottom of the aerogel separation tank (7) for introducing the first condensate and measuring the level of the first condensate.
5. The black water treatment system according to claim 4, wherein the bottom of the liquid level pipe is in on-off communication with the settling unit (10) to adjust the liquid levels of the liquid level pipe and the aerogel separation tank (7).
6. The black water treatment system according to claim 1, wherein the first separator (5) is a heat exchanger.
7. The black water treatment system according to claim 1, wherein the flash evaporation unit (1) comprises a primary flash evaporator (2) and a secondary flash evaporator (3), the exhaust port of the flash evaporation unit (1) is arranged on the primary flash evaporator (2), the liquid outlet of the flash evaporation unit (1) is arranged on the secondary flash evaporator (3), the primary flash evaporator (2) is arranged to perform primary flash evaporation treatment on the black water to obtain primary treated water and the flash evaporated gas, the primary flash evaporator (2) comprises a liquid outlet for discharging the primary treated water, and the secondary flash evaporator (3) is communicated with the primary flash evaporator (2) and is arranged to perform secondary flash evaporation treatment on the primary treated water to obtain the treated water.
8. The black water treatment system according to claim 7, comprising a pumping device (9), wherein the pumping device (9) is arranged between the secondary flash vessel (3) and the sedimentation unit (10) and is arranged to be able to pump the treatment water to the sedimentation unit (10).
9. The black water treatment system according to claim 7, wherein an angle valve (4) is arranged between the liquid outlet of the primary flash evaporator (2) and the secondary flash evaporator (3).
10. The black water treatment system according to any one of claims 1 to 9, wherein the settling unit (10) comprises a recycle water tank (12) and a settling tank (11) in communication with the liquid discharge port of the second separator (6), the settling tank (11) being capable of settling the second condensate to obtain a lower precipitate and an upper clear liquid, the recycle water tank (12) being in communication with the upper portion of the settling tank (11) and being capable of introducing the upper clear liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022679806.1U CN213865793U (en) | 2020-11-17 | 2020-11-17 | Black water treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022679806.1U CN213865793U (en) | 2020-11-17 | 2020-11-17 | Black water treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213865793U true CN213865793U (en) | 2021-08-03 |
Family
ID=77034725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022679806.1U Active CN213865793U (en) | 2020-11-17 | 2020-11-17 | Black water treatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213865793U (en) |
-
2020
- 2020-11-17 CN CN202022679806.1U patent/CN213865793U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101272243B1 (en) | Temperature selectable apparatus for anaerobic treatment of organic waste | |
| CN204051368U (en) | carbon five tail gas recycling and treating device | |
| CN102435546B (en) | Supercritical autoclave bubbling deoxygenation system | |
| CN213865793U (en) | Black water treatment system | |
| CN205644203U (en) | A safety monitoring system for supercritical water oxidation device | |
| CN100469888C (en) | Process for purification, pressurized storage, and transportation of marsh gas | |
| CN204438284U (en) | A kind of thermal power plant heating system | |
| CN204460168U (en) | A kind of steam boiler steam discharge energy recycling system | |
| CN101607749A (en) | A kind of special pressurized submerged combustion vaporization sewage treatment device and method | |
| CN101580284A (en) | Device for directly evaporating oil field sewage through high-pressure burning of fuel | |
| CN205245140U (en) | Weary gas recovery unit and recovery system | |
| CN212005195U (en) | Condensate collecting and recycling system of steam reforming device | |
| RU2697652C1 (en) | Method and system of bringing a nuclear power plant into a safe state after extreme impact | |
| CN102515103B (en) | Technology for secondarily producing medium pressure steam during synthesizing chlorine and hydrogen into hydrogen chloride and equipment thereof | |
| CN112978760A (en) | Urea hydrolysis device | |
| CN201442876U (en) | Fuel high pressure burning direct evaporation oil field sewage water device | |
| CN205119086U (en) | Waste gas water sealed tank | |
| CN112479338A (en) | Micro-interface enhanced wet oxidation system and method | |
| CN212523081U (en) | Triethylene glycol reboiler tail gas recovery processing apparatus | |
| CN210786282U (en) | Steam condensate flash tank | |
| CN203421837U (en) | Waste heat boiler drum water level measuring device | |
| CN219630625U (en) | Sulfate radical-containing hydrochloric acid purifying treatment device | |
| CN220376616U (en) | Naphtha separation condensate water treatment system | |
| CN111692895B (en) | Cold torch gas liquid separating, vaporizing and heating system | |
| CN213506151U (en) | Micro-interface enhanced wet oxidation system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |