CN112170409A - Container closed type automatic cleaning system and method thereof - Google Patents
Container closed type automatic cleaning system and method thereof Download PDFInfo
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- CN112170409A CN112170409A CN202011122932.5A CN202011122932A CN112170409A CN 112170409 A CN112170409 A CN 112170409A CN 202011122932 A CN202011122932 A CN 202011122932A CN 112170409 A CN112170409 A CN 112170409A
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- 238000004140 cleaning Methods 0.000 title claims abstract description 225
- 238000000034 method Methods 0.000 title claims description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 189
- 238000003860 storage Methods 0.000 claims abstract description 145
- 239000007921 spray Substances 0.000 claims abstract description 70
- 238000006243 chemical reaction Methods 0.000 claims abstract description 49
- 238000007789 sealing Methods 0.000 claims abstract description 41
- 238000002955 isolation Methods 0.000 claims abstract description 30
- 239000007788 liquid Substances 0.000 claims abstract description 26
- 239000007789 gas Substances 0.000 claims description 20
- 239000002912 waste gas Substances 0.000 claims description 16
- 238000005406 washing Methods 0.000 claims description 10
- 238000001514 detection method Methods 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 6
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 230000003749 cleanliness Effects 0.000 claims description 3
- 239000012495 reaction gas Substances 0.000 description 12
- 230000000694 effects Effects 0.000 description 10
- 230000009286 beneficial effect Effects 0.000 description 8
- 239000002699 waste material Substances 0.000 description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 5
- 239000011797 cavity material Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 3
- 239000012295 chemical reaction liquid Substances 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 239000002341 toxic gas Substances 0.000 description 2
- 238000012824 chemical production Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
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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
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cleaning In General (AREA)
Abstract
The invention relates to a container closed type automatic cleaning system, which is characterized in that: the cleaning device comprises an isolation valve arranged on a cleaning port of the reaction kettle, wherein a cleaning mechanism storage box is arranged on the isolation valve, and a cleaning unit is arranged on the cleaning mechanism storage box; the cleaning unit comprises a telescopic motor, a lifting rod, an upper limit switch, a lower limit switch, a three-dimensional spray head and a water supply unit for providing high-pressure cleaning liquid; the telescopic motor drives the lifting rod to lift longitudinally, the output end of the lifting rod penetrates through the cleaning mechanism storage box and the isolation valve in sequence and then penetrates into the reaction kettle, and the end part of the lifting rod is provided with a three-dimensional spray head communicated with the water supply unit; and a spray rod sealing guide cavity is arranged on the cleaning mechanism storage box. The invention has strong practicability and is easy to popularize.
Description
Technical Field
The invention relates to the technical field of cleaning of reaction kettles, in particular to a closed container automatic cleaning system and a cleaning method thereof.
Background
The reaction kettle is a chemical reaction container in chemical production, and substances after reaction can be attached to the inner surface of the container in the reaction process, and the next reaction can be influenced if the inner surface of the container is not cleaned. Therefore, after the reaction vessel is used, it is necessary to clean the substances adhering to the inner wall of the reaction vessel.
At present, the cleaning of the reaction kettle of the chemical industry enterprises in China gradually develops towards automation. In the field of automatic cleaning of reaction kettles, cleaning is mainly performed through a lifting positioning mechanism, a separation valve is opened during cleaning, and the separation valve is closed during reaction. However, most of domestic cases do not have a sealed cleaning function, namely, the container replaces residual reaction gas before cleaning, the residual gas is recycled, and the cleaning mechanism is extended into the container for cleaning after no reaction gas exists in the container through the operation. The method increases the replacement time before cleaning and the time for ensuring the qualified oxygen content by vacuumizing before the reaction starts, thereby greatly increasing the time between each kettle of the reaction kettle. Therefore, closed automatic cleaning equipment is designed for the situation, the original automatic mechanism is optimized, the stability, the reliability and the cleaning life of the system are improved, and the reaction preparation time is shortened.
The following technical problems exist according to the prior art:
1. the Chinese utility model (application No. 201320001050.2, entitled "chemical reaction kettle automatic cleaning device") and the Chinese invention patent (application No. 201520034033.8, entitled "automatic cleaning reaction kettle") all propose the solution of reaction kettle automatic cleaning, but the automatic cleaning mechanism of the above scheme can not realize the airtight cleaning of reaction kettle, still need carry out deoxidation operation to the reaction kettle that needs to carry out the deoxidization before the reaction.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a container closed type automatic cleaning system and a cleaning method thereof.
The technical scheme of the invention is realized as follows: a container closed type automatic cleaning system is characterized in that: the cleaning device comprises an isolation valve arranged on a cleaning port of the reaction kettle, wherein a cleaning mechanism storage box is arranged on the isolation valve, and a cleaning unit is arranged on the cleaning mechanism storage box; the cleaning unit comprises a telescopic motor, a lifting rod, an upper limit switch, a lower limit switch, a three-dimensional spray head and a water supply unit for providing high-pressure cleaning liquid; the telescopic motor drives the lifting rod to lift longitudinally, the output end of the lifting rod penetrates through the cleaning mechanism storage box and the isolation valve in sequence and then penetrates into the reaction kettle, and the end part of the lifting rod is provided with a three-dimensional spray head communicated with the water supply unit; and a spray rod sealing guide cavity is arranged on the cleaning mechanism storage box.
The invention has the beneficial effects that:
the cleaning mechanism is installed in a closed mode, the telescopic rod runs up and down in the sealed guide cavity, waste gas and waste liquid are prevented from running out, the effect of cleaning in the closed mode is achieved, the problem that the container is cleaned only by stretching the cleaning mechanism into the container after no reaction gas exists in the container through the operation of effectively replacing the residual reaction gas in the traditional container before cleaning and recycling the residual reaction gas is solved, replacement time before cleaning is increased, vacuumizing before reaction begins is performed to guarantee the qualified time of oxygen content, the problem that time between every two kettles of the reaction kettle is greatly increased, and cleaning time is saved by achieving the effect of synchronous cleaning.
Further, the automatic cleaning device also comprises a spray rod self-cleaning unit for cleaning the spray rod; the spray rod self-cleaning unit comprises a self-cleaning spray head self-cleaning pipe, a self-cleaning water inlet automatic valve, an automatic washing pipeline pressure sensor, a front end valve of the automatic washing pipeline pressure sensor and a self-cleaning water inlet manual valve; the input end of the self-cleaning pipe is communicated with a water supply unit; the self-cleaning water inlet automatic valve and the self-cleaning water inlet manual valve are both arranged on the self-cleaning pipe, and the output end of the self-cleaning pipe uniformly penetrates into the cleaning mechanism storage tank along the circumferential direction of the cleaning mechanism storage tank through a plurality of self-cleaning branch pipes; the automatic cleaning device is characterized in that a detection branch pipe is installed on the self-cleaning pipe, and an automatic cleaning pipeline pressure sensor and a front end valve of the automatic cleaning pipeline pressure sensor are installed on the detection branch pipe.
The invention has the beneficial effects that:
through being provided with the self-cleaning unit of spray lance, such setting up can be with spray lance cleaning reation kettle time, be stained with the waste liquid that attaches and carry out effectual washing under sealed environment to avoid the spray lance to use for a long time and remain reaction liquid, when arousing next preparation, produce relevant chemical reaction, influence reaction purity's phenomenon, with this cleaning performance and the science that improves this belt cleaning device.
Further, a cleaning spray rod piston sealing piece is arranged on the sealing guide cavity; the spray rod piston piece comprises an upper sealing ring and a lower sealing ring which are sleeved on the lifting rods at the upper end and the lower end of the cleaning mechanism storage box.
Furthermore, a water seal is also arranged on the guide sealing cavity; the water seal is arranged on the periphery of the lifting rod and is provided with a sealing ring water seal water outlet and a sealing water seal water inlet which are communicated with the outside.
Further, a storage and replacement unit is arranged on the guide sealing cavity; the storage and replacement unit comprises a water seal isolation module for realizing container sealing through pressure difference and a waste gas replacement module for realizing sealing through deaerated water absorption gas.
Furthermore, the water seal isolation module is provided with a water seal water source with a metering function, a seal cavity water inlet pipe, a seal cavity water inlet pressure sensor, a front end valve of the seal cavity water inlet pressure sensor, a seal cavity water inlet pneumatic valve, a seal cavity water inlet manual valve, a seal cavity outlet valve, a storage cavity vent pipe manual valve, a storage cavity water outlet replacement pipe pneumatic valve, a storage cavity vent pipe pressure gauge, a storage cavity vent pipe pressure sensor, a front end valve of the storage cavity vent pipe pressure gauge and a seal cavity outlet drain pipe; two ends of the water inlet pipe of the sealed cavity are respectively communicated with a water seal and a water seal water source; the sealed cavity water inlet pressure sensor, the front end valve of the sealed cavity water inlet pressure sensor, the sealed cavity water inlet pneumatic valve and the sealed cavity water inlet manual valve are sequentially arranged on the sealed cavity water inlet pipe; one section of the sealed cavity outlet liquid discharge pipe is communicated with the sealed water seal water outlet, and the other end of the sealed cavity outlet liquid discharge pipe is communicated to the storage cavity vent pipe; the storage cavity vent pipe is sequentially provided with the storage cavity vent pipe pressure sensor, a storage cavity vent pipe pressure gauge front end valve, a storage cavity vent pipe pressure gauge, a storage cavity water outlet replacement pipe pneumatic valve and a storage cavity vent pipe manual valve along the water flow direction; and a liquid level switch is also installed at the output end of the emptying pipe of the storage cavity.
Furthermore, the waste gas replacement module comprises a storage cavity water inlet pipe, a storage cavity water inlet water source, a storage cavity water inlet replacement pneumatic valve, a storage cavity water inlet replacement manual valve and a storage cavity water inlet manual valve in a normally open state; two ends of the water inlet pipe of the storage cavity are respectively communicated to a water inlet source of the storage cavity and the storage box of the cleaning mechanism; the storage cavity water inlet replacement pneumatic valve, the storage cavity water inlet replacement manual valve and the storage cavity water inlet manual valve in a normally open state are all arranged on the storage cavity water inlet pipe; the cleaning mechanism storage box is communicated with the storage cavity emptying pipe through an output pipeline.
Compared with the prior art, the invention has the following beneficial effects:
through the arrangement of the piston shaft seal and the water seal, the gas in the reaction kettle can be prevented from escaping, and the influence on the leakage of waste gas and even toxic gas can be avoided; and residual waste gas in the pipeline is removed after the structure is cleaned, so that the phenomenon of waste gas leakage can be further avoided.
In addition, the invention also discloses an automatic cleaning method of the container closed type automatic cleaning system, which is characterized in that: the method comprises the following steps:
s1: before cleaning, the isolation valve is kept closed, the displacement unit is controlled to operate, and after air in the storage cavity is exhausted, the displacement unit finishes working;
s2: after the replacement unit finishes working, opening an isolation valve, and controlling the three-dimensional spray head to ascend and descend through a telescopic motor, so that the three-dimensional spray head is cleaned at a fixed point in the reaction kettle;
s3: during the cleaning process, quantitative water is input towards the interior of the spray rod seal guide cavity through the water seal isolation module, so that the water pressure and the sealing pressure of the shaft seal water outlet are always higher than the pressure of the storage cavity by 0.03-0.05mpa, and water seal is realized;
s4: after the reaction kettle is cleaned, the telescopic motor controls the three-dimensional spray head to reset, and the isolation valve is closed.
Furthermore, in the cleaning process, the spray rod is provided with a self-cleaning spray head through the storage cavity in the lifting process, the telescopic spray rod is cleaned, and the cleanliness of the spray rod is ensured.
Furthermore, in the cleaning process, the isolating valve is opened, gas in the container enters the storage cavity, and residual gas in the storage cavity can not be leaked for ensuring the cleaning, so that after the cleaning is finished, the isolating valve is closed, and then the gas in the storage cavity is emptied by introducing deaerated water.
Compared with the prior art, the invention has the following beneficial effects:
1. the cleaning mechanism is installed in a closed mode, the telescopic rod runs up and down in the sealed guide cavity, waste gas and waste liquid are prevented from running out, the effect of cleaning in the closed mode is achieved, the problem that the container is cleaned only by stretching the cleaning mechanism into the container after no reaction gas exists in the container after the reaction gas is effectively replaced by the container before the traditional cleaning process is solved, the qualified oxygen content time is guaranteed by vacuumizing before the cleaning process and the reaction starts, the time between every two reactors of the reaction kettle is greatly increased, and the cleaning time is saved by achieving the effect of cleaning synchronously.
2. Through carrying out airtight washing to the spray lance, can avoid reation kettle when using next time, during the residual liquid on the spray lance brought into reation kettle, improved off-the-shelf quality.
3. The problem that residual gas inside the cleaning device leaks and influences the next preparation can be avoided by replacing the cleaning device, so that the cleaning effect is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of a cleaning unit;
FIG. 2 is a schematic structural view of a self-cleaning unit;
FIG. 3 is a schematic diagram of a replacement cell;
fig. 4 is a schematic structural view of a sealing unit.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
As shown in fig. 1, the present invention discloses a container closed type automatic cleaning system, which comprises an isolation valve installed on a cleaning port of a reaction kettle, wherein a cleaning mechanism storage tank 13 is installed on the isolation valve, and a cleaning unit is installed on the cleaning mechanism storage tank 13; the cleaning unit comprises a telescopic motor 42, a lifting rod 400, an upper limit switch 43, a lower limit switch 44, a three-dimensional spray head 39 and a water supply unit for providing high-pressure cleaning liquid; the telescopic motor 42 drives the lifting rod 400 to vertically lift, the output end of the lifting rod 400 penetrates through the cleaning mechanism storage tank 13 and the isolation valve in sequence and then penetrates into the reaction kettle, and the end part of the lifting rod 400 is provided with the three-dimensional spray head 39 communicated with the water supply unit; and a spray rod sealing guide cavity 12 is arranged on the cleaning mechanism storage box 13.
The bottom of the reaction kettle is provided with a waste liquid automatic cut-off valve 40, so that the waste liquid can be automatically opened and closed.
The invention has the beneficial effects that:
the cleaning mechanism is installed in a closed mode, the telescopic rod runs up and down in the sealed guide cavity, waste gas and waste liquid are prevented from running out, the effect of cleaning in the closed mode is achieved, the problem that the container is cleaned only by stretching the cleaning mechanism into the container after no reaction gas exists in the container through the operation of effectively replacing the residual reaction gas in the traditional container before cleaning and recycling the residual reaction gas is solved, replacement time before cleaning is increased, vacuumizing before reaction begins is performed to guarantee the qualified time of oxygen content, the problem that time between every two kettles of the reaction kettle is greatly increased, and cleaning time is saved by achieving the effect of synchronous cleaning.
It should be noted that: in the using process, the cleaning mechanism is controlled to stretch and position by a motor; the upper limit switch and the lower limit switch control the limit positions of two ends of the telescopic mechanism;
in addition, the three-dimensional spray head is arranged at the cleaning mechanism and moves up and down along with the cleaning mechanism; the three-dimensional nozzle is characterized in that a high-pressure hose is connected with a water inlet pipe and communicated to a water supply unit through a high-pressure hose with a telescopic function, and a water source in the water supply unit is pressurized by a high-pressure pump and then conveyed into a cleaning mechanism through the high-pressure hose to clean materials;
furthermore, the three-dimensional spray head is lifted through a telescopic rod, the telescopic rod realizes the sealing function of the piston through a guide sealing cavity,
example 2 differs from example 1 in that
As shown in FIG. 2, in an embodiment of the invention, a spray bar self-cleaning unit for a cleaning spray bar is also included; the spray rod self-cleaning unit comprises a self-cleaning spray head self-cleaning pipe 31, a self-cleaning water inlet automatic valve 32, an automatic cleaning pipeline pressure sensor 33, a front end valve 34 of the automatic cleaning pipeline pressure sensor and a self-cleaning water inlet manual valve 35; the input end of the self-cleaning pipe 31 is communicated with a water supply unit; the self-cleaning water inlet automatic valve 32 and the self-cleaning water inlet manual valve 35 are both arranged on the self-cleaning pipe 31, and the output end of the self-cleaning pipe 31 uniformly penetrates into the cleaning mechanism storage tank 13 along the circumferential direction of the cleaning mechanism storage tank 13 through a plurality of self-cleaning branch pipes; the self-cleaning pipe 31 is provided with a detection branch pipe, and the automatic cleaning pipeline pressure sensor 33 and the front end valve 34 of the automatic cleaning pipeline pressure sensor are arranged on the detection branch pipe.
The invention has the beneficial effects that:
through being provided with the self-cleaning unit of spray lance, such setting up can be with spray lance cleaning reation kettle time, be stained with the waste liquid that attaches and carry out effectual washing under sealed environment to avoid the spray lance to use for a long time and remain reaction liquid, when arousing next preparation, produce relevant chemical reaction, influence reaction purity's phenomenon, with this cleaning performance and the science that improves this belt cleaning device.
It should be noted that the spray lance keeps the self-cleaning water inlet manual valve normally open in the lifting process and is used for manually cutting off a loop, the self-cleaning water inlet automatic valve is opened, the front end valve of the automatic washing pipeline pressure sensor is opened, the self-cleaning pipeline pressure is detected through the automatic washing pipeline pressure sensor, the cleaning water pressure is controlled, the self-cleaning spray head is installed in the storage cavity, the spray lance in the telescopic process is cleaned, and the spray lance is automatically cleaned.
Example 3 differs from example 1 or 2 in that
In the embodiment of the invention, as shown in fig. 3-4, a piston seal of the cleaning spray rod is arranged on the seal guide cavity; the spray rod piston piece comprises an upper sealing ring and a lower sealing ring which are sleeved on the lifting rods at the upper end and the lower end of the cleaning mechanism storage box.
In the specific embodiment of the invention, a water seal is also arranged on the guide sealing cavity; the water seal is arranged on the periphery of the lifting rod and is provided with a sealing ring water seal water outlet and a sealing water seal water inlet which are communicated with the outside.
In a specific embodiment of the present invention, a storage replacement unit is disposed on the guide sealing chamber; the storage and replacement unit comprises a water seal isolation module for realizing container sealing through pressure difference and a waste gas replacement module for realizing sealing through deaerated water absorption gas.
In the specific embodiment of the invention, the water seal isolation module has a water seal water source 25 with a metering function, a seal cavity water inlet pipe 20, a seal cavity water inlet pressure sensor 14, a seal cavity water inlet pressure sensor front end valve 15, a seal cavity water inlet pneumatic valve 18, a seal cavity water inlet manual valve 19, a seal cavity outlet valve 10, a storage cavity vent pipe 9, a storage cavity vent pipe manual valve 2, a storage cavity water outlet replacement pipe pneumatic valve 3, a storage cavity vent pipe pressure gauge 5, a storage cavity vent pipe pressure sensor 6, a storage cavity vent pipe pressure gauge front end valve 7 and a seal cavity outlet drain pipe 8; the two ends of the sealing cavity water inlet pipe 20 are respectively communicated with a water seal and a water seal water source 25; the sealed cavity water inlet pressure sensor 14, the front end valve 15 of the sealed cavity water inlet pressure sensor, the sealed cavity water inlet pneumatic valve 18 and the sealed cavity water inlet manual valve 19 are sequentially arranged on the sealed cavity water inlet pipe 20; one section of the sealed cavity outlet liquid discharge pipe 8 is communicated with the sealed water seal water outlet, and the other end of the sealed cavity outlet liquid discharge pipe is communicated to the storage cavity vent pipe 9; the storage cavity vent pipe 9 is sequentially provided with the storage cavity vent pipe pressure sensor 6, a storage cavity vent pipe pressure gauge front end valve 7, a storage cavity vent pipe pressure gauge 5, a storage cavity water outlet replacement pipe pneumatic valve 3 and a storage cavity vent pipe manual valve 2 along the water flow direction; and a liquid level switch 1 is also installed at the output end of the storage cavity emptying pipe 9.
In a specific embodiment of the present invention, the waste gas replacement module comprises a storage cavity water inlet pipe 21, a storage cavity water inlet source 23, a storage cavity water inlet replacement pneumatic valve 16, a storage cavity water inlet replacement manual valve 17 and a storage cavity water inlet manual valve 22 in a normally open state; two ends of the storage cavity water inlet pipe 21 are respectively communicated to a storage cavity water inlet source 23 and a cleaning mechanism storage box; the storage cavity water inlet replacement pneumatic valve 16, the storage cavity water inlet replacement manual valve 17 and the storage cavity water inlet manual valve 22 in a normally open state are all arranged on a storage cavity water inlet pipe 21; the cleaning mechanism storage box is communicated with a storage cavity emptying pipe 9 through an output pipeline.
Compared with the prior art, the invention has the following beneficial effects:
through the arrangement of the piston shaft seal and the water seal, the gas in the reaction kettle can be prevented from escaping, and the influence on the leakage of waste gas and even toxic gas can be avoided; and residual waste gas in the pipeline is removed after the structure is cleaned, so that the phenomenon of waste gas leakage can be further avoided.
It should be noted that: the pressure of the storage cavity is detected through the storage cavity pipeline pressure sensor, the water seal pressure is detected through the guide sealing cavity water inlet pressure sensor, the pressure sensors on the two sides are compared, the metering pump is controlled by the plc control system to inject a certain amount of water into the kettle, the water pressure sealing pressure of the shaft seal water outlet is always higher than the pressure of the storage cavity by 0.03-0.05mpa, and the reliability of the water seal is ensured. Wherein the outlet valve 10 of the sealed cavity keeps normally closed, the front end valve 15 of the water inlet pressure sensor of the sealed cavity, the manual valve 19 of the water inlet of the sealed cavity are normally opened, and the pneumatic valve 18 of the water inlet of the sealed cavity and the metering pump 24 of the water inlet of the sealed cavity keep open under the telescopic condition.
In addition, the cleaning stage, the isolating valve is opened, and gas enters the storage cavity in the container, so that residual gas in the storage cavity can not be leaked after cleaning is finished, and therefore after the isolating valve is closed, the gas in the storage cavity is emptied by introducing deoxygenated water. The operation is as follows: open the storage chamber and intake the replacement pneumatic valve 16, the storage chamber goes out water replacement pipe pneumatic valve 3, the manual valve 2 of storage chamber blow-down pipe, storage chamber blow-down pipe manometer front end valve 7, the manual valve 17 of storage chamber water replacement is normally open valve, after the definite time, detect liquid level switch 1 and have the liquid level, have the signal after, close storage chamber water replacement pneumatic valve 16, the storage chamber goes out water replacement pipe pneumatic valve 3, end with the replacement this moment.
Example 4
In addition, the invention also discloses an automatic cleaning method of the container closed type automatic cleaning system, which is characterized in that: the method comprises the following steps:
s1: before cleaning, the isolation valve is kept closed, the displacement unit is controlled to operate, and after air in the storage cavity is exhausted, the displacement unit finishes working;
s2: after the replacement unit finishes working, opening an isolation valve, and controlling the three-dimensional spray head to ascend and descend through a telescopic motor, so that the three-dimensional spray head is cleaned at a fixed point in the reaction kettle;
s3: during the cleaning process, quantitative water is input towards the interior of the spray rod seal guide cavity through the water seal isolation module, so that the water pressure and the sealing pressure of the shaft seal water outlet are always higher than the pressure of the storage cavity by 0.03-0.05mpa, and water seal is realized;
s4: after the reaction kettle is cleaned, the telescopic motor controls the three-dimensional spray head to reset, and the isolation valve is closed.
Furthermore, in the cleaning process, the spray rod is provided with a self-cleaning spray head through the storage cavity in the lifting process, the telescopic spray rod is cleaned, and the cleanliness of the spray rod is ensured.
Furthermore, in the cleaning process, the isolating valve is opened, gas in the container enters the storage cavity, and residual gas in the storage cavity can not be leaked for ensuring the cleaning, so that after the cleaning is finished, the isolating valve is closed, and then the gas in the storage cavity is emptied by introducing deaerated water.
Compared with the prior art, the invention has the following beneficial effects:
1. the cleaning mechanism is installed in a closed mode, the telescopic rod runs up and down in the sealed guide cavity, waste gas and waste liquid are prevented from running out, the effect of cleaning in the closed mode is achieved, the problem that the container is cleaned only by stretching the cleaning mechanism into the container after no reaction gas exists in the container after the reaction gas is effectively replaced by the container before the traditional cleaning process is solved, the qualified oxygen content time is guaranteed by vacuumizing before the cleaning process and the reaction starts, the time between every two reactors of the reaction kettle is greatly increased, and the cleaning time is saved by achieving the effect of cleaning synchronously.
2. Through carrying out airtight washing to the spray lance, can avoid reation kettle when using next time, during the residual liquid on the spray lance brought into reation kettle, improved off-the-shelf quality.
3. The problem that residual gas inside the cleaning device leaks and influences the next preparation can be avoided by replacing the cleaning device, so that the cleaning effect is improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A container closed type automatic cleaning system is characterized in that: the cleaning device comprises an isolation valve arranged on a cleaning port of the reaction kettle, wherein a cleaning mechanism storage box is arranged on the isolation valve, and a cleaning unit is arranged on the cleaning mechanism storage box; the cleaning unit comprises a telescopic motor, a lifting rod, an upper limit switch, a lower limit switch, a three-dimensional spray head and a water supply unit for providing high-pressure cleaning liquid; the telescopic motor drives the lifting rod to lift longitudinally, the output end of the lifting rod penetrates through the cleaning mechanism storage box and the isolation valve in sequence and then penetrates into the reaction kettle, and the end part of the lifting rod is provided with a three-dimensional spray head communicated with the water supply unit; and a spray rod sealing guide cavity is arranged on the cleaning mechanism storage box.
2. The container hermetic type automatic cleaning system as claimed in claim 1, wherein: the automatic cleaning device also comprises a spray rod self-cleaning unit for cleaning the spray rod; the spray rod self-cleaning unit comprises a self-cleaning spray head self-cleaning pipe, a self-cleaning water inlet automatic valve, an automatic washing pipeline pressure sensor, a front end valve of the automatic washing pipeline pressure sensor and a self-cleaning water inlet manual valve; the input end of the self-cleaning pipe is communicated with a water supply unit; the self-cleaning water inlet automatic valve and the self-cleaning water inlet manual valve are both arranged on the self-cleaning pipe, and the output end of the self-cleaning pipe uniformly penetrates into the cleaning mechanism storage tank along the circumferential direction of the cleaning mechanism storage tank through a plurality of self-cleaning branch pipes; the automatic cleaning device is characterized in that a detection branch pipe is installed on the self-cleaning pipe, and an automatic cleaning pipeline pressure sensor and a front end valve of the automatic cleaning pipeline pressure sensor are installed on the detection branch pipe.
3. The container closed type automatic cleaning system as claimed in claim 1 or 2, wherein: a cleaning spray rod piston sealing element is arranged on the sealing guide cavity; the spray rod piston piece comprises an upper sealing ring and a lower sealing ring which are sleeved on the lifting rods at the upper end and the lower end of the cleaning mechanism storage box.
4. A container hermetic automatic cleaning system as claimed in claim 3, wherein: a water seal is also arranged on the guide sealing cavity; the water seal is arranged on the periphery of the lifting rod and is provided with a sealing ring water seal water outlet and a sealing water seal water inlet which are communicated with the outside.
5. The container hermetic type automatic cleaning system according to claim 4, wherein: a storage replacement unit is arranged on the guide sealing cavity; the storage and replacement unit comprises a water seal isolation module for realizing container sealing through pressure difference and a waste gas replacement module for realizing sealing through deaerated water absorption gas.
6. The container hermetic type automatic cleaning system according to claim 5, wherein: the water seal isolation module is provided with a water seal water source with a metering function, a seal cavity water inlet pipe, a seal cavity water inlet pressure sensor, a front end valve of the seal cavity water inlet pressure sensor, a seal cavity water inlet pneumatic valve, a seal cavity water inlet manual valve, a seal cavity outlet valve, a storage cavity vent pipe manual valve, a storage cavity water outlet replacement pipe pneumatic valve, a storage cavity vent pipe pressure gauge, a storage cavity vent pipe pressure sensor, a front end valve of the storage cavity vent pipe pressure gauge and a seal cavity outlet liquid discharge pipe; two ends of the water inlet pipe of the sealed cavity are respectively communicated with a water seal and a water seal water source; the sealed cavity water inlet pressure sensor, the front end valve of the sealed cavity water inlet pressure sensor, the sealed cavity water inlet pneumatic valve and the sealed cavity water inlet manual valve are sequentially arranged on the sealed cavity water inlet pipe; one section of the sealed cavity outlet liquid discharge pipe is communicated with the sealed water seal water outlet, and the other end of the sealed cavity outlet liquid discharge pipe is communicated to the storage cavity vent pipe; the storage cavity vent pipe is sequentially provided with the storage cavity vent pipe pressure sensor, a storage cavity vent pipe pressure gauge front end valve, a storage cavity vent pipe pressure gauge, a storage cavity water outlet replacement pipe pneumatic valve and a storage cavity vent pipe manual valve along the water flow direction; and a liquid level switch is also installed at the output end of the emptying pipe of the storage cavity.
7. The container hermetic type automatic cleaning system according to claim 5, wherein: the waste gas replacement module comprises a storage cavity water inlet pipe, a storage cavity water inlet source, a storage cavity water inlet replacement pneumatic valve, a storage cavity water inlet replacement manual valve and a storage cavity water inlet manual valve in a normally open state; two ends of the water inlet pipe of the storage cavity are respectively communicated to a water inlet source of the storage cavity and the storage box of the cleaning mechanism; the storage cavity water inlet replacement pneumatic valve, the storage cavity water inlet replacement manual valve and the storage cavity water inlet manual valve in a normally open state are all arranged on the storage cavity water inlet pipe; the cleaning mechanism storage box is communicated with the storage cavity emptying pipe through an output pipeline.
8. An automatic cleaning method of a container closed type automatic cleaning system is characterized in that: the method comprises the following steps:
s1: before cleaning, the isolation valve is kept closed, the displacement unit is controlled to operate, and after air in the storage cavity is exhausted, the displacement unit finishes working;
s2: after the replacement unit finishes working, opening an isolation valve, and controlling the three-dimensional spray head to ascend and descend through a telescopic motor, so that the three-dimensional spray head is cleaned at a fixed point in the reaction kettle;
s3: during the cleaning process, quantitative water is input towards the interior of the spray rod seal guide cavity through the water seal isolation module, so that the water pressure and the sealing pressure of the shaft seal water outlet are always higher than the pressure of the storage cavity by 0.03-0.05mpa, and water seal is realized;
s4: after the reaction kettle is cleaned, the telescopic motor controls the three-dimensional spray head to reset, and the isolation valve is closed.
9. The automatic cleaning method for a container closed type automatic cleaning system as claimed in claim 8, wherein: in the cleaning process, the spray rod is provided with a self-cleaning spray head through the storage cavity in the lifting process, the telescopic spray rod is cleaned, and the cleanliness of the spray rod is ensured.
10. The automatic cleaning method for a container closed type automatic cleaning system as claimed in claim 9, wherein: in the cleaning process, the isolating valve is opened, gas in the container enters the storage cavity, and residual gas in the storage cavity can not be leaked for ensuring that cleaning is finished, so that after the isolating valve is closed, the gas in the storage cavity is emptied by introducing deoxygenated water.
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