CN220870610U - Liquid chlorine gasification and conveying system - Google Patents
Liquid chlorine gasification and conveying system Download PDFInfo
- Publication number
- CN220870610U CN220870610U CN202322766280.4U CN202322766280U CN220870610U CN 220870610 U CN220870610 U CN 220870610U CN 202322766280 U CN202322766280 U CN 202322766280U CN 220870610 U CN220870610 U CN 220870610U
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- chlorine
- liquid
- hot water
- tank
- liquid chlorine
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- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 title claims abstract description 101
- 238000002309 gasification Methods 0.000 title claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 100
- 239000000460 chlorine Substances 0.000 claims abstract description 71
- 229910052801 chlorine Inorganic materials 0.000 claims abstract description 71
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims abstract description 69
- 239000007788 liquid Substances 0.000 claims abstract description 40
- 239000003513 alkali Substances 0.000 claims abstract description 30
- 238000003860 storage Methods 0.000 claims abstract description 10
- 230000001105 regulatory effect Effects 0.000 claims description 15
- 239000002699 waste material Substances 0.000 claims description 8
- 239000003518 caustics Substances 0.000 claims 3
- 238000000034 method Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 6
- 238000001514 detection method Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 9
- QEHKBHWEUPXBCW-UHFFFAOYSA-N nitrogen trichloride Chemical compound ClN(Cl)Cl QEHKBHWEUPXBCW-UHFFFAOYSA-N 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 3
- 239000006200 vaporizer Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000009931 harmful effect Effects 0.000 description 2
- 210000004400 mucous membrane Anatomy 0.000 description 2
- 210000002345 respiratory system Anatomy 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- 206010006458 Bronchitis chronic Diseases 0.000 description 1
- 208000010496 Heart Arrest Diseases 0.000 description 1
- 206010061218 Inflammation Diseases 0.000 description 1
- 206010042434 Sudden death Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 206010006451 bronchitis Diseases 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 125000001309 chloro group Chemical group Cl* 0.000 description 1
- 208000007451 chronic bronchitis Diseases 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000004054 inflammatory process Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 210000001186 vagus nerve Anatomy 0.000 description 1
Landscapes
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The utility model discloses a liquid chlorine gasification and conveying system, which belongs to the technical field of liquid chlorine gasification and comprises a liquid chlorine storage tank, a liquid chlorine pump, a coiled hot water liquid chlorine gasifier, a chlorine buffer tank, a hot water pump, a liquid alkali pool, a first temperature measuring instrument, a second temperature measuring instrument, an acidity analyzer, a pressure measuring instrument and a flow measuring instrument. The coiled pipe type hot water liquid chlorine gasifier is simple in structure, can carry out pressure control, leakage detection and emergency treatment on chlorine, effectively reduces the risk of accidents, can ensure the safety of the chlorine in the conveying process, and ensures that a chlorine outlet of a chlorine buffer tank and a downstream user are sequentially connected through a pipeline.
Description
Technical Field
The utility model belongs to the technical field of liquid chlorine gasification, and relates to a liquid chlorine gasification and conveying system.
Background
Chlorine is a yellow green gas with pungent smell, belongs to toxic and harmful gas, and has toxic and harmful effects on human body through respiratory tract and skin mucous membrane, and has great harm. The low-concentration long-term human chlorine inhalation can cause inflammation of respiratory tract and skin mucous membrane, chronic bronchitis is caused, the high-concentration excessive chlorine inhalation can cause reflex cardiac arrest of vagus nerve, sudden death is caused, and the device is similar to 'electric shock' death, so that the maximum chlorine content in the atmosphere is allowed to be 1mg/m 3. In addition, chlorine can not burn, but can support combustion, and if nitrogen trichloride (NCl 3) contained in liquid chlorine exceeds the standard (5%), decomposition and explosion can be carried out under the action of detonation factors such as light, electricity, vibration and ultrasonic waves (under the condition of unchanged volume, the temperature can reach 2128 ℃ and the pressure is as high as 532.2 MPa), so that the transportation, filling and storage of the liquid chlorine are very careful.
At present, the transportation between a chemical plant and a downstream chlorine-using enterprise mainly adopts the form of filling steel cylinders and transporting liquid chlorine tank cars, and the risk in the filling, transporting and discharging processes of liquid chlorine is relatively high.
Therefore, how to develop a safe, environment-friendly and simple-to-operate liquid chlorine gasification and transportation system is a technical problem to be solved by those skilled in the art.
Disclosure of utility model
In view of this, the present utility model provides a liquid chlorine gasification and delivery system.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
a liquid chlorine gasification and conveying system comprises a liquid chlorine storage tank, a liquid chlorine pump, a coiled hot water liquid chlorine gasifier, a chlorine buffer tank, a hot water pump, a liquid alkali pool, a first temperature measuring instrument, a second temperature measuring instrument, an acidity analyzer, a pressure measuring instrument and a flow measuring instrument;
The liquid chlorine inlet of the coiled hot water liquid chlorine gasifier is sequentially connected with the liquid chlorine storage tank, the liquid chlorine pump and the liquid chlorine inlet of the coiled hot water liquid chlorine gasifier through pipelines, and the chlorine outlet of the coiled hot water liquid chlorine gasifier, the chlorine outlet of the chlorine buffer tank and a downstream user are sequentially connected through pipelines;
the hot water outlet of the hot water tank, the hot water pump and the water inlet of the coiled pipe type hot water liquid chlorine evaporator are sequentially connected through pipelines, the water outlet of the coiled pipe type hot water liquid chlorine evaporator is connected with the circulating water inlet of the hot water tank through a pipeline, and the hot water tank is connected with a steam pipeline;
The liquid chlorine inlet of the coiled pipe type hot water liquid chlorine evaporator is connected with the liquid alkali pool through a pipeline, and the bottom of the chlorine buffer tank is connected with the liquid alkali pool through a pipeline;
the coiled hot water liquid chlorine evaporator is provided with a first temperature measuring instrument, the hot water tank is provided with a second temperature measuring instrument, a pipeline connecting a water outlet of the coiled hot water liquid chlorine evaporator and a circulating water inlet of the hot water tank is sequentially provided with a first cut-off valve and an acidity analyzer, the chlorine buffer tank is provided with a pressure measuring instrument, and a pipeline connecting a chlorine outlet of the chlorine buffer tank and a downstream user is sequentially provided with a first regulating valve and a flow measuring instrument;
The pipeline connecting the liquid chlorine pump and the coiled pipe type hot water liquid chlorine gasifier is provided with a second regulating valve, and the steam pipeline is provided with a second cut-off valve.
Further, the intelligent control system further comprises a DCS control system, and the first cut-off valve, the second cut-off valve, the first regulating valve and the second regulating valve are respectively connected with the DCS control system through circuits.
The beneficial effect of adopting the further technical scheme is that: the reliability of the conveying process can be improved, the main technological parameters of the production process are automatically controlled by adopting a DCS control system, the automatic control degree and the safety of the production are improved, the labor intensity is reduced, and the working environment is improved.
Further, the device also comprises a chlorine tail gas treatment device, and the top of the chlorine buffer tank is connected with the chlorine tail gas treatment device through a pipeline.
Further, the device also comprises a waste liquid pump and a liquefaction blowdown tank, the liquid alkali pool, the waste liquid pump and the liquefaction blowdown tank are connected in sequence, and the liquid alkali pool is connected with an alkali liquid pipe.
The beneficial effect of adopting the further technical scheme is that: in order to further ensure the safety of nitrogen trichloride, the nitrogen trichloride which is discharged periodically is absorbed by alkali liquor, so that no nitrogen trichloride aggregation in the liquid chlorine gasification full pipeline can be realized, and the safe and stable operation of the pipeline is ensured.
Further, a valve I is arranged on a pipeline connecting a liquid chlorine inlet of the disc tube type hot water liquid chlorine gasifier and a liquid alkali pool, and a valve II is arranged on a pipeline connecting the bottom of the chlorine buffer tank and the liquid alkali pool.
The beneficial effect of adopting the further technical scheme is that:
The utility model has the beneficial effects that: the utility model adopts the coiled hot water liquid chlorine gasifier, has simple structure, convenient operation and reliable and mature technology, can carry out pressure control, leakage detection and emergency treatment on chlorine, effectively reduces the risk of accidents, can ensure the safety of the chlorine in the transportation process, ensures that the chlorine outlet of the chlorine buffer tank is connected with downstream users in sequence through pipelines, and has the advantages of high energy efficiency, cleanness, environmental protection, good safety and the like compared with the traditional transportation mode because the traditional transportation mode with peripheral downstream enterprises is filled through liquid chlorine steel cylinders or tank cars. The original pipe gallery of the factory is utilized, a new building is not involved, and the fireproof space of the original building is not changed. Along with the increase of peripheral chlorine quantity, pipeline transportation becomes a better transportation mode with peripheral downstream enterprises, so that the safety risk in the loading, unloading and transportation processes can be reduced, the danger sources of downstream enterprises can be reduced, the park management is convenient, the cost can be saved, and the profit margin is increased for upstream enterprises and downstream enterprises. The long-distance chlorine pipeline conveying process can reduce the influence on the environment, and meets the environmental protection requirement and the concept of sustainable development by reducing the risk and emission of chlorine leakage and optimizing the energy utilization efficiency.
Drawings
FIG. 1 is a schematic diagram of the liquid chlorine gasification and transportation system of the present utility model.
In the figure:
The device comprises a 1-liquid chlorine storage tank, a 2-liquid chlorine pump, a 3-coil type hot water liquid chlorine gasifier, a 4-chlorine buffer tank, a 5-hot water tank, a 6-hot water pump, a 7-liquid alkali tank, a 8-temperature measuring instrument I, a 9-temperature measuring instrument II, a 10-acidity analyzer, a 11-pressure measuring instrument, a 12-flow measuring instrument, a 13-shut-off valve I, a 14-shut-off valve II, a 15-regulating valve I, a 16-regulating valve II, a 17-chlorine tail gas treatment device, a 18-waste liquid pump, a 19-liquefied sewage tank, a 20-alkali liquid pipe, a 21-valve I, a 22-valve II and a 23-downstream user.
Detailed Description
The following description of the technical solutions in the embodiments of the present utility model will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The liquid chlorine gasification and conveying system comprises a liquid chlorine storage tank 1, a liquid chlorine pump 2, a coiled hot water liquid chlorine gasifier 3, a chlorine buffer tank 4, a hot water tank 5, a hot water pump 6, a liquid alkali pool 7, a first temperature measuring instrument 8, a second temperature measuring instrument 9, an acidity analyzer 10, a pressure measuring instrument 11 and a flow measuring instrument 12;
The liquid chlorine storage tank 1, the liquid chlorine pump 2 and the liquid chlorine inlet of the coiled hot water liquid chlorine gasifier 3 are sequentially connected through pipelines, and the chlorine outlet of the coiled hot water liquid chlorine gasifier 3, the chlorine outlet of the chlorine buffer tank 4 and the downstream user 23 are sequentially connected through pipelines;
The hot water outlet of the hot water tank 5, the hot water pump 6 and the water inlet of the coiled hot water liquid chlorine gasifier 3 are sequentially connected through pipelines, the water outlet of the coiled hot water liquid chlorine gasifier 3 is connected with the circulating water inlet of the hot water tank 5 through a pipeline, and the hot water tank 5 is connected with a steam pipeline;
the liquid chlorine inlet of the coiled pipe type hot water liquid chlorine gasifier 3 is connected with the liquid alkali pool 7 through a pipeline, and the bottom of the chlorine buffer tank 4 is connected with the liquid alkali pool 7 through a pipeline;
The coil type hot water liquid chlorine gasifier 3 is provided with a first temperature measuring instrument 8, the hot water tank 5 is provided with a second temperature measuring instrument 9, a water outlet of the coil type hot water liquid chlorine gasifier 3 and a pipeline of a circulating water inlet of the hot water tank 5 are sequentially provided with a first cut-off valve 13 and an acidity analyzer 10, the chlorine buffer tank 4 is provided with a pressure measuring instrument 11, and a pipeline connecting a chlorine outlet of the chlorine buffer tank 4 and a downstream user 23 is sequentially provided with a first regulating valve 15 and a flow measuring instrument 12;
the pipeline connecting the liquid chlorine pump 2 and the coiled hot water liquid chlorine gasifier 3 is provided with a second regulating valve 16, and the steam pipeline is provided with a second cut-off valve 14.
In one embodiment, the system further comprises a DCS control system, and the first cut-off valve 13, the second cut-off valve 14, the first regulating valve 15 and the second regulating valve 16 are respectively connected with the DCS control system through circuits.
In one embodiment, the device also comprises a chlorine tail gas treatment device 17, and the top of the chlorine buffer tank 4 is connected with the chlorine tail gas treatment device 17 through a pipeline.
In one embodiment, the device further comprises a waste liquid pump 18 and a liquefaction blowdown tank 19, wherein the liquid alkali tank 7, the waste liquid pump 18 and the liquefaction blowdown tank 19 are connected in sequence, and the liquid alkali tank 7 is connected with an alkali liquid pipe 20.
In one embodiment, a valve I21 is arranged on a pipeline connecting the liquid chlorine inlet of the coiled hot water liquid chlorine gasifier 3 and the liquid alkali tank 7, and a valve II 22 is arranged on a pipeline connecting the bottom of the chlorine buffer tank 4 and the liquid alkali tank 7.
The working principle of the utility model is as follows:
Liquid chlorine is pumped into a coiled hot water liquid chlorine evaporator 3 from a liquid chlorine storage tank 1 through a liquid chlorine pump 2, and enters a chlorine buffer tank 4 after being gasified, and then enters a downstream user 23. Hot water is pumped into the coiled hot water liquid chlorine gasifier 3 from the hot water tank 5 through the hot water pump 6, and then flows back to the hot water tank 5 from the coiled hot water liquid chlorine gasifier 3. The residual nitrogen trichloride in the coiled hot water liquid chlorine gasifier 3 and the chlorine buffer tank 4 enters the liquid alkali pool 7 for absorption. The tail gas of the chlorine buffer tank 4 enters a chlorine tail gas treatment device 17. The alkali liquid is fed into the alkali liquid pool 7 through the alkali liquid pipe 20, and the absorption liquid after the alkali liquid pool 7 absorbs chlorine is pumped into the liquefaction blowdown tank 19 through the waste liquid pump 18.
The chlorine buffer tank 4 is provided with a pressure measuring instrument 11, when the pressure is too high, the liquid chlorine pump 2 is closed, the opening of the second regulating valve 16 is reduced, the liquid chlorine feeding amount is cut off, and the pressure of the chlorine buffer tank 4 is strictly controlled.
The coil pipe type hot water liquid chlorine gasifier 3 is provided with a first temperature measuring instrument 8, when the temperature of the coil pipe type hot water liquid chlorine gasifier 3 is too high, the first cut-off valve 13 is closed, hot water feeding is cut off, and the temperature of the coil pipe type hot water liquid chlorine gasifier 3 is strictly controlled.
The hot water tank 5 is provided with a second temperature measuring instrument 9, when the temperature of the hot water tank 5 is too high, the second cut-off valve 14 is closed, steam feeding is cut off, and the temperature of the hot water tank 5 is strictly controlled.
A flow measuring instrument 12 is arranged on a pipeline connecting a chlorine outlet of the chlorine buffer tank 4 and a downstream user 23, and is used for controlling the opening of a chlorine discharge regulating valve I15, and when the chlorine flow is overlarge, the opening of the regulating valve I15 is reduced; when the chlorine flow is too small, the first 15 opening of the regulating valve is increased, and the chlorine flow is strictly controlled.
An acidity analyzer 10 is installed on a pipeline connecting the water outlet of the coiled hot water liquid chlorine vaporizer 3 and the circulating water inlet of the hot water tank 5, and whether leakage of chlorine and liquid chlorine exists in the coiled hot water liquid chlorine vaporizer 3 is judged by detecting the acidity change of vapor condensate water, so that whether leakage points occur in the coiled hot water liquid chlorine vaporizer 3 is determined.
The utility model increases the yield: since the 8 month test run in 2022, 5.4 ten thousand tons of chlorine gas are delivered to the on-campus enterprise in total.
Increase revenue: according to the production condition of downstream chlorine unit, the production load of liquid chlorine is regulated at any time. Sales of item products and increases in market share will result in increased revenue. Wherein, the economic benefit is obtained: chlorine gas average valence 300 yuan/ton, total creation effect 5.4 x 300=1620 ten thousand yuan.
The description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (5)
1. The liquid chlorine gasification and conveying system is characterized by comprising a liquid chlorine storage tank, a liquid chlorine pump, a coiled hot water liquid chlorine gasifier, a chlorine buffer tank, a hot water pump, a liquid alkali pool, a first temperature measuring instrument, a second temperature measuring instrument, an acidity analyzer, a pressure measuring instrument and a flow measuring instrument;
The liquid chlorine storage tank, the liquid chlorine pump and the liquid chlorine inlet of the coiled hot water liquid chlorine gasifier are sequentially connected through pipelines, and the chlorine outlet of the coiled hot water liquid chlorine gasifier, the chlorine outlet of the chlorine buffer tank and a downstream user are sequentially connected through pipelines;
The hot water outlet of the hot water tank, the hot water pump and the water inlet of the coiled pipe type hot water liquid chlorine evaporator are sequentially connected through pipelines, the water outlet of the coiled pipe type hot water liquid chlorine evaporator is connected with the circulating water inlet of the hot water tank through a pipeline, and the hot water tank is connected with a steam pipeline;
The liquid chlorine inlet of the coiled pipe type hot water liquid chlorine gasifier is connected with the liquid alkali pool through a pipeline, and the bottom of the chlorine buffer tank is connected with the liquid alkali pool through a pipeline;
The coiled hot water chlorine gasifier is provided with a first temperature measuring instrument, the hot water tank is provided with a second temperature measuring instrument, a pipeline connecting a water outlet of the coiled hot water chlorine gasifier and a circulating water inlet of the hot water tank is sequentially provided with a first cut-off valve and an acidity analyzer, the chlorine buffer tank is provided with a pressure measuring instrument, and a pipeline connecting a chlorine outlet of the chlorine buffer tank and a downstream user is sequentially provided with a first regulating valve and a flow measuring instrument;
The pipeline connecting the liquid chlorine pump and the coiled pipe type hot water liquid chlorine gasifier is provided with a second regulating valve, and the steam pipeline is provided with a second cut-off valve.
2. The liquid chlorine gasification and delivery system of claim 1, further comprising a DCS control system, wherein the first shut-off valve, the second shut-off valve, the first regulator valve and the second regulator valve are electrically connected to the DCS control system, respectively.
3. The liquid chlorine gasification and delivery system of claim 1, further comprising a chlorine tail gas treatment device, wherein the top of the chlorine buffer tank is connected to the chlorine tail gas treatment device via a pipeline.
4. The liquid chlorine gasification and delivery system according to claim 1, further comprising a waste liquid pump and a liquefaction blowdown tank, wherein the liquid caustic tank, the waste liquid pump and the liquefaction blowdown tank are connected in sequence, and the liquid caustic tank is connected with a caustic pipe.
5. The liquid chlorine gasification and delivery system according to claim 1, wherein a first valve is arranged on a pipeline connecting a liquid chlorine inlet of the pipe-connected hot water liquid chlorine gasifier and a liquid alkali tank, and a second valve is arranged on a pipeline connecting the bottom of the chlorine buffer tank and the liquid alkali tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322766280.4U CN220870610U (en) | 2023-10-16 | 2023-10-16 | Liquid chlorine gasification and conveying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322766280.4U CN220870610U (en) | 2023-10-16 | 2023-10-16 | Liquid chlorine gasification and conveying system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220870610U true CN220870610U (en) | 2024-04-30 |
Family
ID=90817142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322766280.4U Active CN220870610U (en) | 2023-10-16 | 2023-10-16 | Liquid chlorine gasification and conveying system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220870610U (en) |
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2023
- 2023-10-16 CN CN202322766280.4U patent/CN220870610U/en active Active
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