CN219233384U - Online cleaning device for crude brine pipeline refined from chlor-alkali chemical brine - Google Patents
Online cleaning device for crude brine pipeline refined from chlor-alkali chemical brine Download PDFInfo
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- CN219233384U CN219233384U CN202223232297.3U CN202223232297U CN219233384U CN 219233384 U CN219233384 U CN 219233384U CN 202223232297 U CN202223232297 U CN 202223232297U CN 219233384 U CN219233384 U CN 219233384U
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Abstract
The utility model relates to the technical field of brine refining, in particular to an online cleaning device for a coarse brine pipeline for chloralkali chemical brine refining. The utility model has reasonable and compact structure and convenient use, can clean the crude brine pipeline on the premise of not disassembling the pipeline, is convenient and easy to implement, saves the workload and the working time, stabilizes the operation of the device, and has the characteristics of safety, labor saving, simplicity and high efficiency.
Description
Technical Field
The utility model relates to the technical field of brine refining, in particular to an online cleaning device for a coarse brine pipeline for refining chlor-alkali chemical brine.
Background
In the primary brine refining process of chlor-alkali industry, the reverse contact of the low-saturation chemical brine and the raw salt is used for dissolving the raw salt to generate crude brine with the saturation of 300g/L to 320 g/L. Because of the reasons of high saturation of crude brine, long conveying distance of the crude brine pipeline, temperature fluctuation and the like, naCL in the crude brine is easy to crystallize and separate out in the crude brine pipeline, and gradually accumulates at the pipe fittings of a valve, an elbow, a reducing and the like of the crude brine pipeline, so that the pipe diameter of the crude brine pipeline is reduced, the flow rate of the crude brine is influenced, and even the pipeline is blocked.
When the flow of the crude brine is insufficient to meet production needs due to NaCL deposition in the crude brine pipeline, the primary brine refining device is required to be stopped, the crude brine pipeline is disassembled, and the crude brine pipeline is cleaned section by section. The cleaning work intensity of the crude brine pipeline is high and the time is long, and even so, the thorough dredging of each section of crude brine pipeline cannot be guaranteed. Because the insufficient flux of the crude brine pipeline affects the occurrence of the primary brine device parking, the crystallization of the crude brine in the crude brine pipeline also affects the normal and stable operation of the device.
Disclosure of Invention
The utility model provides an online cleaning device for a coarse brine pipeline refined by chlor-alkali chemical brine, which overcomes the defects of the prior art, and can effectively solve the problem that the actual pipe diameter of the coarse brine pipeline is reduced after crystallization precipitation in the pipeline when the conventional brine is used for cleaning the coarse brine pipeline, thereby influencing the flow of the coarse brine.
The technical scheme of the utility model is realized by the following measures: the utility model provides a chlor-alkali chemical industry brine refining crude brine pipeline online cleaning device, including salt dissolving tank, crude brine tank, pressurization dissolve gas pitcher and preprocessor, fixed intercommunication has salt dissolving tank main line between salt dissolving tank lower part export and the salt dissolving tank lower part import, fixed intercommunication has crude brine to get into the pipeline between salt dissolving tank upper portion export and the crude brine tank upper portion import, fixed intercommunication has crude brine discharge pipeline between crude brine tank lower part export and the pressurization dissolve gas pitcher top import, fixed intercommunication has crude brine pretreatment pipeline between pressurization dissolve gas pitcher bottom export and the preprocessor upper portion import, fixed intercommunication has compressed air pipeline on the crude brine discharge pipeline, fixed intercommunication has salt dissolving pipeline between crude brine pretreatment pipeline and the salt dissolving tank top import, fixed intercommunication has salt dissolving pipeline between salt dissolving tank main line and the crude brine discharge pipeline.
The following are further optimizations and/or improvements to the above-described inventive solution:
the crude brine inlet pipeline is provided with a crude brine diversion trench, a sodium hypochlorite adding pipeline is fixedly communicated with a first inlet at the top of the crude brine diversion trench, a sodium hydroxide adding pipeline is fixedly communicated with a second inlet at the top of the crude brine diversion trench, and hand valves are fixedly installed on the sodium hypochlorite adding pipeline and the sodium hydroxide adding pipeline.
A salt dissolving water pump is fixedly arranged on a salt dissolving water main pipeline between the salt dissolving water tank and the salt dissolving water communicating pipeline, and a crude salt water pump is fixedly arranged on a crude salt water discharging pipeline between the salt dissolving water communicating pipeline and the crude salt water tank.
The chemical brine communicating pipe is sequentially and fixedly provided with a first three-way valve and a second three-way valve along the medium flow direction, and the chemical brine removing pipe is fixedly provided with a third three-way valve.
The salt dissolving water main pipeline between the salt dissolving water communication pipeline and the salt dissolving barrel is fixedly provided with a first valve, the crude salt water discharging pipeline between the salt dissolving water communication pipeline and the crude salt water pump is fixedly provided with a second valve, and the crude salt water pretreatment pipeline between the salt dissolving water pipeline and the pretreatment device is fixedly provided with a third valve.
The salt dissolving water pump is a variable frequency pump.
The utility model has reasonable and compact structure, convenient use, and utilizes the characteristic of low NaCL content in the chemical brine to circularly replace salt crystals precipitated in the crude brine pipeline due to high saturation of the crude brine, solves the problems of influencing flow and blocking the pipeline after the NaCL is precipitated, saves workload and working time, stabilizes the operation of the device, and has the characteristics of safety, labor saving, simplicity and high efficiency.
Drawings
FIG. 1 is a schematic diagram of the process flow of the utility model.
The codes in fig. 1 are respectively: 1 is a salt dissolving tank, 2 is a salt dissolving tank, 3 is a crude salt water tank, 4 is a pressurized dissolved air tank, 5 is a preprocessor, 6 is a salt dissolving water main pipeline, 7 is a crude salt water inlet pipeline, 8 is a crude salt water outlet pipeline, 9 is a crude salt water pretreatment pipeline, 10 is a compressed air pipeline, 11 is a salt removing pipeline, 12 is a salt dissolving water communication pipeline, 13 is a crude salt water diversion trench, 14 is a sodium hypochlorite adding pipeline, 15 is a sodium hydroxide adding pipeline, 16 is a salt dissolving water pump, 17 is a salt water pump, 18 is a first three-way valve, 19 is a second three-way valve, 20 is a third three-way valve, 21 is a first valve, 22 is a second valve, and 23 is a third valve.
Detailed Description
The present utility model is not limited by the following examples, and specific embodiments can be determined according to the technical scheme and practical situations of the present utility model.
In the present utility model, unless otherwise specified, the devices and apparatuses used are all known and commonly used in the art.
In the present utility model, for convenience of description, the description of the relative positional relationship of each component is described according to the layout manner of fig. 1 of the specification, for example: the positional relationship of front, rear, upper, lower, left, right, etc. is determined in accordance with the layout direction of fig. 1 of the specification.
The utility model is further described below with reference to examples and figures:
example 1: as shown in figure 1, the on-line cleaning device for the chloralkali chemical brine refined crude brine pipeline comprises a salt dissolving tank 1, a salt dissolving tank 2, a crude brine tank 3, a pressurized dissolved air tank 4 and a preprocessor 5, wherein a salt dissolving general pipeline 6 is fixedly communicated between the lower outlet of the salt dissolving tank 1 and the lower inlet of the salt dissolving tank 2, a crude brine inlet pipeline 7 is fixedly communicated between the upper outlet of the salt dissolving tank 2 and the upper inlet of the crude brine tank 3, a crude brine discharge pipeline 8 is fixedly communicated between the lower outlet of the crude brine tank 3 and the top inlet of the pressurized dissolved air tank 4, a crude brine pretreatment pipeline 9 is fixedly communicated between the bottom outlet of the pressurized dissolved air tank 4 and the upper inlet of the preprocessor 5, a compressed air pipeline 10 is fixedly communicated on the crude brine discharge pipeline 8, a salt removing pipeline 11 is fixedly communicated between the crude brine pretreatment pipeline 9 and the top inlet of the salt dissolving tank 1, and a salt dissolving general pipeline 6 is fixedly communicated with the crude brine discharge pipeline 8.
The on-line cleaning device for the chlor-alkali chemical brine refined crude brine pipeline can be further optimized or/and improved according to actual needs:
example 2: which differs from example 1 in that: as shown in figure 1, a crude brine inlet pipeline 7 is provided with a crude brine diversion trench 13, a first inlet at the top of the crude brine diversion trench 13 is fixedly communicated with a sodium hypochlorite adding pipeline 14, a second inlet at the top of the crude brine diversion trench 13 is fixedly communicated with a sodium hydroxide adding pipeline 15, and hand valves are fixedly arranged on the sodium hypochlorite adding pipeline 14 and the sodium hydroxide adding pipeline 15.
Example 3: which differs from examples 1 to 2 in that: as shown in fig. 1, a brine pump 16 is fixedly arranged on a brine main pipeline 6 between a brine tank 1 and a brine communication pipeline 12, and a crude brine pump 17 is fixedly arranged on a crude brine discharge pipeline 8 between the brine communication pipeline 12 and a crude brine tank 3.
Example 4: which differs from examples 1 to 3 in that: as shown in fig. 1, a first three-way valve 18 and a second three-way valve 19 are fixedly arranged on the salt removing water communication pipeline 12 in sequence along the medium flow direction, and a third three-way valve 20 is fixedly arranged on the salt removing water pipeline 11.
Example 5: which differs from examples 1 to 4 in that: as shown in fig. 1, a first valve 21 is fixedly arranged on a brine main pipeline 6 between a brine communication pipeline 12 and a brine tank 2, a second valve 22 is fixedly arranged on a crude brine discharge pipeline 8 between the brine communication pipeline 12 and a crude brine pump 17, and a third valve 23 is fixedly arranged on a crude brine pretreatment pipeline 9 between a brine removal pipeline 11 and a pretreatment device 5.
Example 6: which differs from examples 1 to 5 in that: as shown in fig. 1, the brine pump 16 is a variable frequency pump.
According to the requirements, the pipeline of the on-line cleaning device for the chlor-alkali chemical brine refining crude brine pipeline is fixedly provided with a valve, a thermometer, a pressure gauge, a liquid level gauge and the like which can enable the pipeline to normally operate.
The utility model can effectively perform preventive flushing and dredging on flux reduction and blockage conditions of the crude brine pipeline caused by crude brine crystallization, reduce the workload of disassembling and cleaning the crude brine pipeline, save the working time of dredging the crude brine pipeline and stabilize the normal operation of the device.
The technical characteristics form the embodiment of the utility model, have stronger adaptability and implementation effect, and can increase or decrease unnecessary technical characteristics according to actual needs so as to meet the requirements of different situations.
The application process of the embodiment of the utility model is as follows:
when flux of the crude brine pipeline is reduced or blocked due to crystallization of the crude brine, the crude brine pump 17 is stopped, the second valve 22 and the third valve 23 are closed, the third three-way valve 20, the second three-way valve 19 and the first three-way valve 18 are sequentially opened, the first valve 21 is closed, the salt water pump 16 is started, and the crude brine pipeline is cleaned by controlling the salt water flow rate through frequency conversion of the salt water pump 16.
After the crude brine pipeline is cleaned, stopping the brine pump 16, sequentially closing the first three-way valve 18, the second three-way valve 19 and the third three-way valve 20, opening the first valve 21, the second valve 22 and the third valve 23, starting the brine pump 16 and the crude brine pump 17, and recovering the primary brine refining device to normal production.
Claims (9)
1. The utility model provides a chlor-alkali chemical industry brine refining crude brine pipeline online cleaning device, its characterized in that includes salt dissolving tank, crude brine tank, pressurization dissolve gas pitcher and preprocessor, fixed intercommunication has salt dissolving water main line between salt dissolving tank lower part export and the salt dissolving tank lower part import, fixed intercommunication has crude brine to get into the pipeline between salt dissolving tank upper portion export and the crude brine tank upper portion import, fixed intercommunication has crude brine discharge pipeline between crude brine tank lower part export and the pressurization dissolve gas pitcher top import, fixed intercommunication has crude brine pretreatment pipeline between pressurization dissolve gas pitcher bottom export and the preprocessor upper portion import, fixed intercommunication has compressed air pipeline on the crude brine discharge pipeline, fixed intercommunication has salt dissolving water pipeline between crude brine pretreatment pipeline and the salt dissolving tank top import, fixed intercommunication has salt dissolving water communication pipeline between salt dissolving water main line and the crude brine discharge pipeline.
2. The online cleaning device for the coarse brine pipeline for refining chlor-alkali chemical brine is characterized in that a coarse brine diversion trench is arranged on a coarse brine inlet pipeline, a sodium hypochlorite adding pipeline is fixedly communicated with a first inlet at the top of the coarse brine diversion trench, a sodium hydroxide adding pipeline is fixedly communicated with a second inlet at the top of the coarse brine diversion trench, and hand valves are fixedly arranged on the sodium hypochlorite adding pipeline and the sodium hydroxide adding pipeline.
3. The on-line cleaning device for a chlor-alkali chemical brine refined crude brine pipeline according to claim 1 or 2, which is characterized in that a brine dissolving pump is fixedly arranged on a brine dissolving main pipeline between a brine dissolving tank and a brine dissolving communication pipeline, and a crude brine pump is fixedly arranged on a crude brine discharge pipeline between the brine dissolving communication pipeline and a crude brine tank.
4. The on-line cleaning device for the chlor-alkali chemical brine refined crude brine pipeline according to claim 1 or 2, which is characterized in that a first three-way valve and a second three-way valve are fixedly arranged on the brine communicating pipeline in sequence along the medium flow direction, and a third three-way valve is fixedly arranged on the brine removing pipeline.
5. The on-line cleaning device for the coarse brine pipeline for chlor-alkali chemical brine refining according to claim 3, wherein a first three-way valve and a second three-way valve are fixedly arranged on the brine communicating pipeline in sequence along the medium flow direction, and a third three-way valve is fixedly arranged on the brine removing pipeline.
6. The on-line cleaning device for a crude brine pipeline for refining chloralkali chemical brine according to claim 3, wherein a first valve is fixedly arranged on a brine main pipeline between a brine communicating pipeline and a brine dissolving barrel, a second valve is fixedly arranged on a crude brine discharging pipeline between the brine communicating pipeline and a crude brine pump, and a third valve is fixedly arranged on a crude brine pretreatment pipeline between a brine removing pipeline and a pretreatment device.
7. The on-line cleaning device for a crude brine pipeline for refining chloralkali chemical brine according to claim 5, wherein a first valve is fixedly arranged on a brine main pipeline between a brine communicating pipeline and a brine dissolving barrel, a second valve is fixedly arranged on a crude brine discharging pipeline between the brine communicating pipeline and a crude brine pump, and a third valve is fixedly arranged on a crude brine pretreatment pipeline between a brine removing pipeline and a pretreatment device.
8. The on-line cleaning device for a chlor-alkali chemical brine refined crude brine pipeline according to claim 3, wherein the brine dissolving pump is a variable frequency pump.
9. The on-line cleaning device for a chlor-alkali chemical brine refined crude brine pipeline according to claim 5, 6 or 7, wherein the brine dissolving pump is a variable frequency pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223232297.3U CN219233384U (en) | 2022-12-04 | 2022-12-04 | Online cleaning device for crude brine pipeline refined from chlor-alkali chemical brine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223232297.3U CN219233384U (en) | 2022-12-04 | 2022-12-04 | Online cleaning device for crude brine pipeline refined from chlor-alkali chemical brine |
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| Publication Number | Publication Date |
|---|---|
| CN219233384U true CN219233384U (en) | 2023-06-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223232297.3U Active CN219233384U (en) | 2022-12-04 | 2022-12-04 | Online cleaning device for crude brine pipeline refined from chlor-alkali chemical brine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219233384U (en) |
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2022
- 2022-12-04 CN CN202223232297.3U patent/CN219233384U/en active Active
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