CN112024551A - Reation kettle washs scale removal system - Google Patents
Reation kettle washs scale removal system Download PDFInfo
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- CN112024551A CN112024551A CN202010920233.9A CN202010920233A CN112024551A CN 112024551 A CN112024551 A CN 112024551A CN 202010920233 A CN202010920233 A CN 202010920233A CN 112024551 A CN112024551 A CN 112024551A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/08—Cleaning containers, e.g. tanks
- B08B9/093—Cleaning containers, e.g. tanks by the force of jets or sprays
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/08—Cleaning involving contact with liquid the liquid having chemical or dissolving effect
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
- B08B3/14—Removing waste, e.g. labels, from cleaning liquid; Regenerating cleaning liquids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/08—Cleaning containers, e.g. tanks
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
The invention discloses a cleaning and descaling system for a reaction kettle, which comprises a cleaning box, wherein the cleaning box is communicated with an inlet of the reaction kettle through a pipeline; the acidic cleaning solution container and the alkaline cleaning solution container are respectively communicated with the cleaning box through pipelines, and a first electromagnetic valve and a second electromagnetic valve are respectively connected to the two pipelines; a monitoring probe of the pH value monitor is arranged in the reaction kettle; the programmable controller is electrically connected with the first electromagnetic valve, the second electromagnetic valve and the pH value monitor; the cleaning pump is connected to a pipeline between the cleaning box and the reaction kettle; the acid-base neutralization device is communicated with an outlet of the reaction kettle through a pipeline; the water filter is respectively communicated with the cleaning box and the acid-base neutralization device through pipelines. The reaction kettle cleaning and descaling system provided by the invention has the advantages of reasonable structure, high cleaning efficiency, long cleaning period and good cleaning effect, can be used for chemically cleaning the reaction kettle, and can effectively ensure the stable operation of the reaction kettle.
Description
Technical Field
The invention relates to the technical field of cleaning equipment of reaction kettles, in particular to a cleaning and descaling system for a reaction kettle.
Background
Chemical industry reation kettle or the boiler that heats up water, after long-time the use, the inside can the scale deposit serious, leads to equipment heat transfer efficiency low, and heat transfer is inhomogeneous, not only extravagant fuel, owing to be heated the inequality condition such as explosion easily takes place, so need add the scale removal washing liquid and carry out the scale removal and wash.
The Chinese patent with the publication number of CN109225097A discloses a reaction kettle cleaning system, which comprises a solvent storage bin, wherein the solvent storage bin is provided with a bin inlet which is communicated with a discharge hole at the bottom of a reaction kettle through a pipeline; a bin outlet is formed in the lower portion of the solvent storage bin, the bin outlet is communicated with a feeding port in the top of the reaction kettle through a pipeline, a first conveying pump is arranged between the bin inlet and the discharging port, a second conveying pump is arranged between the bin outlet and the feeding port, the solvent storage bin is further provided with a feeding port, and the bin outlet of the solvent storage bin is further communicated with the bin inlet through a pipeline; and a second filter is also arranged between the bin outlet and the feeding hole, and the second filter and the second conveying pump are also positioned between the bin outlet and the bin inlet. The reaction kettle cleaning system provided by the invention avoids the failure of the cleaning solvent due to the reaction with water in the air in the storage process, greatly improves the repeated utilization rate of the cleaning solvent, and does not influence the performance of the product when added into a polyurethane product.
The reaction kettle cleaning system is too simple in structure, not ideal in cleaning effect and low in cleaning efficiency.
Disclosure of Invention
The invention aims to provide a reaction kettle cleaning and descaling system which is high in cleaning efficiency, long in cleaning period and good in cleaning effect.
In order to achieve the above purpose, the invention provides the following technical scheme:
a reactor cleaning descaling system, comprising:
a cleaning box which is provided with a stirrer and is internally provided with an electric heating pipe; the cleaning box is communicated with the inlet of the reaction kettle through a pipeline;
the acidic cleaning solution container and the alkaline cleaning solution container are respectively communicated with the cleaning tank through pipelines; a first electromagnetic valve is connected on a pipeline between the acidic cleaning solution container and the cleaning box, and a second electromagnetic valve is connected on a pipeline between the alkaline cleaning solution container and the cleaning box;
a pH value monitor, wherein a monitoring probe of the pH value monitor is arranged in the reaction kettle;
the programmable controller is electrically connected with the first electromagnetic valve, the second electromagnetic valve and the pH value monitor;
the cleaning pump is connected to a pipeline between the cleaning box and the reaction kettle;
the acid-base neutralization device is communicated with an outlet of the reaction kettle through a pipeline;
and the water filter is respectively communicated with the cleaning box and the acid-base neutralization device through pipelines.
Furthermore, a first valve is connected to a pipeline between the cleaning box and the reaction kettle.
Furthermore, a pressure gauge is connected to a pipeline between the cleaning box and the reaction kettle.
Furthermore, a second valve is connected on a pipeline between the acid-base neutralization device and the reaction kettle.
Furthermore, a water return pump is connected to a pipeline between the acid-base neutralization device and the water filter.
Furthermore, a third valve is connected to a pipeline between the acid-base neutralization device and the water filter.
Further, the system for cleaning and descaling the reaction kettle further comprises:
one end of the branch pipe is communicated with a pipeline between the cleaning box and the reaction kettle, and the other end of the branch pipe is communicated with the acid-base neutralization device; the branch pipe is connected with a fourth valve.
Further, the fourth valve is a pressure valve.
Further, the system for cleaning and descaling the reaction kettle further comprises:
and one end of the exhaust pipe is communicated with the cleaning box, and the other end of the exhaust pipe can be connected with an exhaust system.
The reaction kettle cleaning and descaling system provided by the invention has the advantages of reasonable structure, high cleaning efficiency, long cleaning period and good cleaning effect, can be used for chemically cleaning the reaction kettle, and can effectively ensure the stable operation of the reaction kettle.
Drawings
In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.
Fig. 1 is a schematic structural diagram of a cleaning and descaling system for a reaction kettle according to an embodiment of the present invention.
Description of reference numerals:
1. a cleaning tank; 2. a stirrer; 3. an electric heating tube; 4. an acidic cleaning solution container; 5. an alkaline wash liquor container; 6. a first solenoid valve; 7. a second solenoid valve; 8. a monitoring probe of the pH value monitor; 9. cleaning the pump; 10. a first valve; 11. a pressure gauge; 12. an acid-base neutralization device; 13. a water filter; 14. a second valve; 15. a water return pump; 16. a third valve; 17. a fourth valve; 18. an exhaust pipe; 19. branch pipe 100 and reaction kettle.
Detailed Description
In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.
Example one
As shown in fig. 1, a reaction kettle cleaning and descaling system comprises a cleaning tank 1, an acidic cleaning solution container 4, an alkaline cleaning solution container 5, a first electromagnetic valve 6, a second electromagnetic valve 7, a pH monitor, a cleaning pump 9, a first valve 10, a pressure gauge 11, an acid-base neutralization device 12, a water filter 13, a second valve 14, a water return pump 15, and a third valve 16.
The cleaning tank 1 is provided with a stirrer 2 and is internally provided with an electric heating pipe, and the cleaning tank 1 is communicated with the inlet of the reaction kettle 100 through a pipeline. The agitator 2 can agitate the cleaning liquid in the cleaning tank 1, and the electric heating tube 3 can moderately heat the cleaning liquid.
An acidic cleaning solution container 4 (filled with an acidic cleaning solution) and an alkaline cleaning solution container 5 (filled with an alkaline cleaning solution) which are respectively communicated with the cleaning box 1 through pipelines. A first electromagnetic valve 6 is connected on the pipeline between the acidic cleaning solution container 4 and the cleaning box 1, and a second electromagnetic valve 7 is connected on the pipeline between the alkaline cleaning solution container 5 and the cleaning box 1.
The monitoring probe 8 of the pH value monitor is arranged in the reaction kettle 100. And the programmable controller (not shown) is electrically connected with the first electromagnetic valve 6, the second electromagnetic valve 7 and the pH value monitor. The pH value monitor monitors the pH value in the reaction kettle 100 through the monitoring probe 8, and sends the monitored pH value to the programmable controller, and the programmable controller controls the opening and closing of the first electromagnetic valve 6 and the second electromagnetic valve 7 according to the pH value.
The cleaning pump 9 is connected to a pipeline between the cleaning tank 1 and the reaction kettle 100, and the cleaning pump 9 can pump the cleaning liquid in the cleaning tank 1 into the reaction kettle 100.
The acid-base neutralization device 12, preferably ZH-1A type acid-base neutralization device, is communicated with the outlet of the reaction kettle 100 through a pipeline. The water filter 13 is respectively communicated with the cleaning tank 1 and the acid-base neutralization device 12 through pipelines. The acid-base neutralization device 12 can neutralize the cleaning water after the cleaning of the reaction kettle 100, and the neutralized water can be returned to the cleaning tank 1 for recycling after being filtered by the water filter 13.
The pipeline between the cleaning box 1 and the reaction kettle 100 is connected with a first valve 10, and the first valve 10 is used for controlling the on-off of the pipeline.
The pipeline between the cleaning box 1 and the reaction kettle 100 is connected with a pressure gauge 11, the pressure gauge 11 feeds back the pressure of the pipeline in real time, and when the pressure is too high, an operator can take corresponding measures.
A second valve 14 is connected to a pipeline between the acid-base neutralization device 12 and the reaction kettle 100, and the second valve 14 is used for controlling the on-off of a drainage pipeline of the reaction kettle 100.
A water return pump 15 is connected to a pipeline between the acid-base neutralization device 12 and the water filter 13, and the water return pump 15 can accelerate the speed of conveying neutralized water to the water filter 13.
A third valve 16 is connected on the pipeline between the acid-base neutralization device 12 and the water filter 13, and the third valve 16 is used for controlling the on-off of the pipeline.
Above-mentioned reation kettle washs scale removal system when wasing reation kettle 100, acidic cleaning solution can not once only add, otherwise can produce the corruption to reation kettle because the concentration is too high, need through the pH value scope of pH value monitor on-line monitoring reation kettle interior cleaning solution. The specific cleaning process is as follows:
firstly, clean water is filled in the cleaning box 1, the first valve 10 is opened, the cleaning pump 9 pumps the clean water to the reaction kettle 100, and the reaction kettle 100 is cleaned by the clean water. The pH monitor monitors the pH in the reaction vessel 100 via the monitoring probe 8 and sends the monitored pH to the programmable controller. When the pH value of the cleaning solution in the reaction kettle 100 is more than or equal to 4, the programmable controller controls the first electromagnetic valve 6 to be opened, the acidic cleaning solution in the acidic cleaning solution container 4 enters the cleaning box 1, the cleaning pump 9 pumps the acidic cleaning solution to the reaction kettle 100, and the reaction kettle 100 is pickled. When the pH value of the cleaning liquid in the reaction kettle 100 is less than 3, the programmable controller controls the first electromagnetic valve 6 to be closed, the dropwise addition of the acidic cleaning liquid into the cleaning tank 1 is stopped, and the descaling state is started. When the reaction kettle 100 is filled with the acidic cleaning solution, the first valve 10 and the cleaning pump 9 are closed, and the reaction kettle 100 is soaked for 3-5 hours. When the pH of the cleaning liquid in the reaction kettle 100 is greater than 5, the second valve 14 and the third valve 16 (which may also be electromagnetic valves electrically connected to the programmable controller, and controlled to open and close by the programmable controller according to the pH) are opened to release the cleaning liquid and impurities, and the cleaning liquid is neutralized by the acid-base neutralization device 12 and filtered by the water filter 13 to become clean water, which is sent to the cleaning tank 1 for recycling. After no significant liquid is present in the reactor 100, the second valve 14 and the third valve 16 are closed. The programmable controller controls the second electromagnetic valve 7 to be opened, alkaline cleaning liquid in the alkaline cleaning liquid container 5 enters the cleaning tank 1, the cleaning pump 9 pumps the alkaline cleaning liquid to the reaction kettle 100, alkaline cleaning is carried out on the reaction kettle 100 for 0.5-1.5 hours, the pH value in the reaction kettle 100 is controlled to be 7-9, then the second valve 14 and the third valve 16 are opened, the alkaline cleaning liquid is discharged, and the cleaning liquid is changed into clean water after neutralization of the acid-base neutralization device 12 and filtration of the water filter 13 and is sent to the cleaning tank 1 for recycling. And finally, under the state that the first electromagnetic valve 6 and the second electromagnetic valve 7 are closed, injecting clean water into the cleaning box 1, opening the first valve 10, pumping the clean water to the reaction kettle 100 by the cleaning pump 9, and cleaning the reaction kettle 100 by the clean water.
Example two
As shown in fig. 1, a reaction kettle cleaning and descaling system comprises a cleaning tank 1, an acidic cleaning solution container 4, an alkaline cleaning solution container 5, a first electromagnetic valve 6, a second electromagnetic valve 7, a pH monitor, a cleaning pump 9, a first valve 10, a pressure gauge 11, an acid-base neutralization device 12, a water filter 13, a second valve 14, a water return pump 15, a third valve 16, a fourth valve 17, and a branch pipe 19.
The cleaning tank 1 is provided with a stirrer 2 and is internally provided with an electric heating pipe, and the cleaning tank 1 is communicated with the inlet of the reaction kettle 100 through a pipeline. The agitator 2 can agitate the cleaning liquid in the cleaning tank 1, and the electric heating tube 3 can moderately heat the cleaning liquid.
An acidic cleaning solution container 4 (filled with an acidic cleaning solution) and an alkaline cleaning solution container 5 (filled with an alkaline cleaning solution) which are respectively communicated with the cleaning box 1 through pipelines. A first electromagnetic valve 6 is connected on the pipeline between the acidic cleaning solution container 4 and the cleaning box 1, and a second electromagnetic valve 7 is connected on the pipeline between the alkaline cleaning solution container 5 and the cleaning box 1.
The monitoring probe 8 of the pH value monitor is arranged in the reaction kettle 100. And the programmable controller (not shown) is electrically connected with the first electromagnetic valve 6, the second electromagnetic valve 7 and the pH value monitor. The pH value monitor monitors the pH value in the reaction kettle 100 through the monitoring probe 8, and sends the monitored pH value to the programmable controller, and the programmable controller controls the opening and closing of the first electromagnetic valve 6 and the second electromagnetic valve 7 according to the pH value.
The cleaning pump 9 is connected to a pipeline between the cleaning tank 1 and the reaction kettle 100, and the cleaning pump 9 can pump the cleaning liquid in the cleaning tank 1 into the reaction kettle 100.
The acid-base neutralization device 12, preferably ZH-1A type acid-base neutralization device, is communicated with the outlet of the reaction kettle 100 through a pipeline. The water filter 13 is respectively communicated with the cleaning tank 1 and the acid-base neutralization device 12 through pipelines. The acid-base neutralization device 12 can neutralize the cleaning water after the cleaning of the reaction kettle 100, and the neutralized water can be returned to the cleaning tank 1 for recycling after being filtered by the water filter 13.
The pipeline between the cleaning box 1 and the reaction kettle 100 is connected with a first valve 10, and the first valve 10 is used for controlling the on-off of the pipeline.
The pipeline between the cleaning box 1 and the reaction kettle 100 is connected with a pressure gauge 11, the pressure gauge 11 feeds back the pressure of the pipeline in real time, and when the pressure is too high, an operator can take corresponding measures.
A second valve 14 is connected to a pipeline between the acid-base neutralization device 12 and the reaction kettle 100, and the second valve 14 is used for controlling the on-off of a drainage pipeline of the reaction kettle 100.
A water return pump 15 is connected to a pipeline between the acid-base neutralization device 12 and the water filter 13, and the water return pump 15 can accelerate the speed of conveying neutralized water to the water filter 13.
A third valve 16 is connected on the pipeline between the acid-base neutralization device 12 and the water filter 13, and the third valve 16 is used for controlling the on-off of the pipeline.
One end of the branch pipe 19 is communicated with a pipeline between the cleaning tank 1 and the reaction kettle 100, and the other end of the branch pipe 19 is communicated with the acid-base neutralization device 12. The branch pipe 19 is connected with a fourth valve 17, and the fourth valve 17 is a pressure valve. When the liquid outlet pressure at the cleaning pump 7 exceeds 0.5MPa, the pressure valve, namely the fourth valve 17 is opened, the cleaning liquid can flow into the acid-base neutralization device 12 through the branch pipe 19, and the cleaning liquid is changed into clear water after being neutralized by the acid-base neutralization device 12 and filtered by the water filter 13 and then is sent to the cleaning tank 1 for recycling.
Above-mentioned reation kettle washs scale removal system when wasing reation kettle 100, acidic cleaning solution can not once only add, otherwise can produce the corruption to reation kettle because the concentration is too high, need through the pH value scope of pH value monitor on-line monitoring reation kettle interior cleaning solution. The specific cleaning process is as follows:
firstly, clean water is filled in the cleaning box 1, the first valve 10 is opened, the cleaning pump 9 pumps the clean water to the reaction kettle 100, and the reaction kettle 100 is cleaned by the clean water. The pH monitor monitors the pH in the reaction vessel 100 via the monitoring probe 8 and sends the monitored pH to the programmable controller. When the pH value of the cleaning solution in the reaction kettle 100 is more than or equal to 4, the programmable controller controls the first electromagnetic valve 6 to be opened, the acidic cleaning solution in the acidic cleaning solution container 4 enters the cleaning box 1, the cleaning pump 9 pumps the acidic cleaning solution to the reaction kettle 100, and the reaction kettle 100 is pickled. When the pH value of the cleaning liquid in the reaction kettle 100 is less than 3, the programmable controller controls the first electromagnetic valve 6 to be closed, the dropwise addition of the acidic cleaning liquid into the cleaning tank 1 is stopped, and the descaling state is started. When the reaction kettle 100 is filled with the acidic cleaning solution, the first valve 10 and the cleaning pump 9 are closed, and the reaction kettle 100 is soaked for 3-5 hours. When the pH of the cleaning liquid in the reaction kettle 100 is greater than 5, the second valve 14 and the third valve 16 (which may also be electromagnetic valves electrically connected to the programmable controller, and controlled to open and close by the programmable controller according to the pH) are opened to release the cleaning liquid and impurities, and the cleaning liquid is neutralized by the acid-base neutralization device 12 and filtered by the water filter 13 to become clean water, which is sent to the cleaning tank 1 for recycling. After no significant liquid is present in the reactor 100, the second valve 14 and the third valve 16 are closed. The programmable controller controls the second electromagnetic valve 7 to be opened, alkaline cleaning liquid in the alkaline cleaning liquid container 5 enters the cleaning tank 1, the cleaning pump 9 pumps the alkaline cleaning liquid to the reaction kettle 100, alkaline cleaning is carried out on the reaction kettle 100 for 0.5-1.5 hours, the pH value in the reaction kettle 100 is controlled to be 7-9, then the second valve 14 and the third valve 16 are opened, the alkaline cleaning liquid is discharged, and the cleaning liquid is changed into clean water after neutralization of the acid-base neutralization device 12 and filtration of the water filter 13 and is sent to the cleaning tank 1 for recycling. And finally, under the state that the first electromagnetic valve 6 and the second electromagnetic valve 7 are closed, injecting clean water into the cleaning box 1, opening the first valve 10, pumping the clean water to the reaction kettle 100 by the cleaning pump 9, and cleaning the reaction kettle 100 by the clean water.
When the liquid outlet pressure at the cleaning pump 7 exceeds 0.5MPa, the pressure valve, namely the fourth valve 17 is opened, the cleaning liquid can flow into the acid-base neutralization device 12 through the branch pipe 19, and the cleaning liquid is changed into clear water after being neutralized by the acid-base neutralization device 12 and filtered by the water filter 13 and then is sent to the cleaning tank 1 for recycling.
EXAMPLE III
As shown in fig. 1, a cleaning and descaling system for a reaction kettle comprises a cleaning tank 1, an acidic cleaning solution container 4, an alkaline cleaning solution container 5, a first electromagnetic valve 6, a second electromagnetic valve 7, a pH monitor, a cleaning pump 9, a first valve 10, a pressure gauge 11, an acid-base neutralization device 12, a water filter 13, a second valve 14, a water return pump 15, a third valve 16, a fourth valve 17, an exhaust pipe 18 and a branch pipe 19.
The cleaning tank 1 is provided with a stirrer 2 and is internally provided with an electric heating pipe, and the cleaning tank 1 is communicated with the inlet of the reaction kettle 100 through a pipeline. The agitator 2 can agitate the cleaning liquid in the cleaning tank 1, and the electric heating tube 3 can moderately heat the cleaning liquid.
An acidic cleaning solution container 4 (filled with an acidic cleaning solution) and an alkaline cleaning solution container 5 (filled with an alkaline cleaning solution) which are respectively communicated with the cleaning box 1 through pipelines. A first electromagnetic valve 6 is connected on the pipeline between the acidic cleaning solution container 4 and the cleaning box 1, and a second electromagnetic valve 7 is connected on the pipeline between the alkaline cleaning solution container 5 and the cleaning box 1.
The monitoring probe 8 of the pH value monitor is arranged in the reaction kettle 100. And the programmable controller (not shown) is electrically connected with the first electromagnetic valve 6, the second electromagnetic valve 7 and the pH value monitor. The pH value monitor monitors the pH value in the reaction kettle 100 through the monitoring probe 8, and sends the monitored pH value to the programmable controller, and the programmable controller controls the opening and closing of the first electromagnetic valve 6 and the second electromagnetic valve 7 according to the pH value.
The cleaning pump 9 is connected to a pipeline between the cleaning tank 1 and the reaction kettle 100, and the cleaning pump 9 can pump the cleaning liquid in the cleaning tank 1 into the reaction kettle 100.
The acid-base neutralization device 12, preferably ZH-1A type acid-base neutralization device, is communicated with the outlet of the reaction kettle 100 through a pipeline. The water filter 13 is respectively communicated with the cleaning tank 1 and the acid-base neutralization device 12 through pipelines. The acid-base neutralization device 12 can neutralize the cleaning water after the cleaning of the reaction kettle 100, and the neutralized water can be returned to the cleaning tank 1 for recycling after being filtered by the water filter 13.
The pipeline between the cleaning box 1 and the reaction kettle 100 is connected with a first valve 10, and the first valve 10 is used for controlling the on-off of the pipeline.
The pipeline between the cleaning box 1 and the reaction kettle 100 is connected with a pressure gauge 11, the pressure gauge 11 feeds back the pressure of the pipeline in real time, and when the pressure is too high, an operator can take corresponding measures.
A second valve 14 is connected to a pipeline between the acid-base neutralization device 12 and the reaction kettle 100, and the second valve 14 is used for controlling the on-off of a drainage pipeline of the reaction kettle 100.
A water return pump 15 is connected to a pipeline between the acid-base neutralization device 12 and the water filter 13, and the water return pump 15 can accelerate the speed of conveying neutralized water to the water filter 13.
A third valve 16 is connected on the pipeline between the acid-base neutralization device 12 and the water filter 13, and the third valve 16 is used for controlling the on-off of the pipeline.
One end of the branch pipe 19 is communicated with a pipeline between the cleaning tank 1 and the reaction kettle 100, and the other end of the branch pipe 19 is communicated with the acid-base neutralization device 12. The branch pipe 19 is connected with a fourth valve 17, and the fourth valve 17 is a pressure valve. When the liquid outlet pressure at the cleaning pump 7 exceeds 0.5MPa, the pressure valve, namely the fourth valve 17 is opened, the cleaning liquid can flow into the acid-base neutralization device 12 through the branch pipe 19, and the cleaning liquid is changed into clear water after being neutralized by the acid-base neutralization device 12 and filtered by the water filter 13 and then is sent to the cleaning tank 1 for recycling.
One end of the exhaust pipe 18 communicates with the cleaning tank 1, and the other end of the exhaust pipe 18 can be connected to an exhaust system. When the gas pressure in the cleaning tank 1 is excessive, the gas in the cleaning tank 1 can be discharged through the exhaust pipe 18 and by means of the exhaust system.
Above-mentioned reation kettle washs scale removal system when wasing reation kettle 100, acidic cleaning solution can not once only add, otherwise can produce the corruption to reation kettle because the concentration is too high, need through the pH value scope of pH value monitor on-line monitoring reation kettle interior cleaning solution. The specific cleaning process is as follows:
firstly, clean water is filled in the cleaning box 1, the first valve 10 is opened, the cleaning pump 9 pumps the clean water to the reaction kettle 100, and the reaction kettle 100 is cleaned by the clean water. The pH monitor monitors the pH in the reaction vessel 100 via the monitoring probe 8 and sends the monitored pH to the programmable controller. When the pH value of the cleaning solution in the reaction kettle 100 is more than or equal to 4, the programmable controller controls the first electromagnetic valve 6 to be opened, the acidic cleaning solution in the acidic cleaning solution container 4 enters the cleaning box 1, the cleaning pump 9 pumps the acidic cleaning solution to the reaction kettle 100, and the reaction kettle 100 is pickled. When the pH value of the cleaning liquid in the reaction kettle 100 is less than 3, the programmable controller controls the first electromagnetic valve 6 to be closed, the dropwise addition of the acidic cleaning liquid into the cleaning tank 1 is stopped, and the descaling state is started. When the reaction kettle 100 is filled with the acidic cleaning solution, the first valve 10 and the cleaning pump 9 are closed, and the reaction kettle 100 is soaked for 3-5 hours. When the pH of the cleaning liquid in the reaction kettle 100 is greater than 5, the second valve 14 and the third valve 16 (which may also be electromagnetic valves electrically connected to the programmable controller, and controlled to open and close by the programmable controller according to the pH) are opened to release the cleaning liquid and impurities, and the cleaning liquid is neutralized by the acid-base neutralization device 12 and filtered by the water filter 13 to become clean water, which is sent to the cleaning tank 1 for recycling. After no significant liquid is present in the reactor 100, the second valve 14 and the third valve 16 are closed. The programmable controller controls the second electromagnetic valve 7 to be opened, alkaline cleaning liquid in the alkaline cleaning liquid container 5 enters the cleaning tank 1, the cleaning pump 9 pumps the alkaline cleaning liquid to the reaction kettle 100, alkaline cleaning is carried out on the reaction kettle 100 for 0.5-1.5 hours, the pH value in the reaction kettle 100 is controlled to be 7-9, then the second valve 14 and the third valve 16 are opened, the alkaline cleaning liquid is discharged, and the cleaning liquid is changed into clean water after neutralization of the acid-base neutralization device 12 and filtration of the water filter 13 and is sent to the cleaning tank 1 for recycling. And finally, under the state that the first electromagnetic valve 6 and the second electromagnetic valve 7 are closed, injecting clean water into the cleaning box 1, opening the first valve 10, pumping the clean water to the reaction kettle 100 by the cleaning pump 9, and cleaning the reaction kettle 100 by the clean water.
When the liquid outlet pressure at the cleaning pump 7 exceeds 0.5MPa, the pressure valve, namely the fourth valve 17 is opened, the cleaning liquid can flow into the acid-base neutralization device 12 through the branch pipe 19, and the cleaning liquid is changed into clear water after being neutralized by the acid-base neutralization device 12 and filtered by the water filter 13 and then is sent to the cleaning tank 1 for recycling.
When the gas pressure in the cleaning tank 1 is excessive, the gas in the cleaning tank 1 can be discharged through the exhaust pipe 18 and by means of the exhaust system.
The reation kettle that each above-mentioned embodiment provided washs scale removal system, it is rational in infrastructure, can carry out chemical cleaning to reation kettle, the cleaning efficiency is high, and the cleaning cycle is long, and the cleaning performance is good, can effectively ensure reation kettle's steady operation.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.
Claims (9)
1. A reation kettle washs scale removal system which characterized in that includes:
a cleaning box which is provided with a stirrer and is internally provided with an electric heating pipe; the cleaning box is communicated with the inlet of the reaction kettle through a pipeline;
the acidic cleaning solution container and the alkaline cleaning solution container are respectively communicated with the cleaning tank through pipelines; a first electromagnetic valve is connected on a pipeline between the acidic cleaning solution container and the cleaning box, and a second electromagnetic valve is connected on a pipeline between the alkaline cleaning solution container and the cleaning box;
a pH value monitor, wherein a monitoring probe of the pH value monitor is arranged in the reaction kettle;
the programmable controller is electrically connected with the first electromagnetic valve, the second electromagnetic valve and the pH value monitor;
the cleaning pump is connected to a pipeline between the cleaning box and the reaction kettle;
the acid-base neutralization device is communicated with an outlet of the reaction kettle through a pipeline;
and the water filter is respectively communicated with the cleaning box and the acid-base neutralization device through pipelines.
2. The cleaning and descaling system for the reaction kettle according to claim 1, wherein a first valve is connected to a pipeline between the cleaning tank and the reaction kettle.
3. The cleaning and descaling system for the reaction kettle according to claim 2, wherein a pressure gauge is connected to a pipeline between the cleaning tank and the reaction kettle.
4. The cleaning and descaling system for the reaction kettle according to claim 3, wherein a second valve is connected to a pipeline between the acid-base neutralization device and the reaction kettle.
5. The reaction kettle cleaning and descaling system according to claim 4, wherein a water return pump is connected to a pipeline between the acid-base neutralization device and the water filter.
6. The cleaning and descaling system for the reaction kettle according to claim 5, wherein a third valve is connected to a pipeline between the acid-base neutralization device and the water filter.
7. The reactor cleaning and descaling system according to any one of claims 1 to 6, further comprising:
one end of the branch pipe is communicated with a pipeline between the cleaning box and the reaction kettle, and the other end of the branch pipe is communicated with the acid-base neutralization device; the branch pipe is connected with a fourth valve.
8. The reactor cleaning and descaling system of claim 7, wherein the fourth valve is a pressure valve.
9. The reactor cleaning and descaling system according to any one of claims 1 to 6, further comprising:
and one end of the exhaust pipe is communicated with the cleaning box, and the other end of the exhaust pipe can be connected with an exhaust system.
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| CN114985385A (en) * | 2022-05-25 | 2022-09-02 | 广东美的厨房电器制造有限公司 | Beverage brewing equipment, control method and device thereof and readable storage medium |
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