CN109261658B - Efficient energy-saving environment-friendly oil dirt cleaning device and cleaning process - Google Patents
Efficient energy-saving environment-friendly oil dirt cleaning device and cleaning process Download PDFInfo
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- CN109261658B CN109261658B CN201811119040.2A CN201811119040A CN109261658B CN 109261658 B CN109261658 B CN 109261658B CN 201811119040 A CN201811119040 A CN 201811119040A CN 109261658 B CN109261658 B CN 109261658B
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- 238000004140 cleaning Methods 0.000 title claims abstract description 96
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000012528 membrane Substances 0.000 claims abstract description 72
- 239000007788 liquid Substances 0.000 claims abstract description 66
- 239000012459 cleaning agent Substances 0.000 claims abstract description 39
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 37
- 239000003960 organic solvent Substances 0.000 claims description 27
- 238000011049 filling Methods 0.000 claims description 13
- 238000001914 filtration Methods 0.000 claims description 12
- 239000012535 impurity Substances 0.000 claims description 6
- 239000010865 sewage Substances 0.000 claims description 6
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 3
- 239000010962 carbon steel Substances 0.000 claims description 3
- 230000018044 dehydration Effects 0.000 claims description 3
- 238000006297 dehydration reaction Methods 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 238000004821 distillation Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 claims description 3
- 239000003344 environmental pollutant Substances 0.000 claims description 3
- 230000002209 hydrophobic effect Effects 0.000 claims description 3
- 238000005374 membrane filtration Methods 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 231100000719 pollutant Toxicity 0.000 claims description 3
- 229920005597 polymer membrane Polymers 0.000 claims description 3
- 238000000746 purification Methods 0.000 claims description 3
- 230000008929 regeneration Effects 0.000 claims description 3
- 238000011069 regeneration method Methods 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 239000013589 supplement Substances 0.000 claims description 3
- 238000004064 recycling Methods 0.000 claims 2
- 238000003912 environmental pollution Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000004880 explosion Methods 0.000 abstract description 2
- 238000011086 high cleaning Methods 0.000 abstract description 2
- 230000002265 prevention Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 22
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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Classifications
-
- 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
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
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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
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
The invention provides an efficient energy-saving environment-friendly oil dirt cleaning device and a cleaning process thereof, wherein frames are welded on four sides of a skid-mounted chassis, and a cleaning system and a compressed air system are fixed on the top of the skid-mounted chassis; the air compressor is connected with the air storage tank and the air filter through pipelines, and the air filter is connected with the industrial equipment, the liquid storage tank, the primary membrane separator and the secondary membrane separator through an air pipeline and a valve; the liquid storage tank is connected with industrial equipment through a pipeline and a valve, a heating pipe is installed in the liquid storage tank and connected with a steam pipeline, the lower part of the liquid storage tank is connected with a centrifugal pump through the pipeline and the valve, and the centrifugal pump is connected with a primary membrane separator and a secondary membrane separator through the pipeline and the valve; has the advantages that: the invention has the advantages of high cleaning efficiency, cleaning time saving, good cleaning effect, cleaning agent saving, small environmental pollution, simple operation, safety, explosion prevention and convenient movement.
Description
Technical Field
The invention relates to the field of oil dirt cleaning devices and cleaning processes, in particular to a high-efficiency, energy-saving and environment-friendly oil dirt cleaning device and a cleaning process thereof.
Background
Industrial equipment which is in direct contact with oil media, such as oil pipelines, crude oil depot volume pipes and the like, can form a large amount of oily dirt on the inner wall of the pipeline equipment after being used for a long time, thereby influencing the normal use of the equipment. And therefore, cleaning and maintenance are required periodically. At present, the cleaning process of oily dirt in the industrial equipment is simple and extensive, a liquid storage tank is mainly used, cleaning agent is injected, and then the cleaning agent is pumped into the industrial equipment by a centrifugal pump to be soaked or circularly cleaned. This cleaning method has the following disadvantages: firstly, the cleaning time is long, the cleaning efficiency is low, and the cleaning is not clean enough; secondly, the usage amount of the cleaning agent is large, and the cleaning agent cannot be recycled, so that resources are wasted; thirdly, the closed cleaning cannot be realized, and the environmental pollution is great; fourthly, the cleaning equipment has no explosion-proof function and has potential safety hazard; fifthly, the pipeline connection is troublesome, and the operation is not simple and convenient enough.
Disclosure of Invention
The invention aims to solve the defects of the prior art and provides an efficient energy-saving environment-friendly oil dirt cleaning device and a cleaning process thereof.
The new technical scheme of the invention is as follows: a high-efficiency energy-saving environment-friendly oil dirt cleaning device comprises a skid-mounted chassis, a frame, a compressed air system and a cleaning system, wherein the frame is welded on four sides of the skid-mounted chassis, hoisting holes are formed in four corners of the top of the frame, and the cleaning system and the compressed air system are fixedly mounted on the top of the skid-mounted chassis; the compressed air system comprises an air compressor, an air storage tank and a gas filter, wherein the air compressor is connected with the air storage tank through a pipeline, the air storage tank is connected with the gas filter through a pipeline, the gas filter is connected to the top of the industrial equipment through a gas pipeline and a valve A, and the gas filter is respectively connected to the tops of the liquid storage tank, the primary membrane separator and the secondary membrane separator through a gas pipeline, a valve G, a valve M and a valve Q; the cleaning system comprises a liquid storage tank, a centrifugal pump, a primary membrane separator, a secondary membrane separator and a valve, wherein the upper part of one end of the liquid storage tank is connected with industrial equipment through a pipeline, a valve C and a valve D, and a flowmeter, a thermometer and a pressure gauge are arranged between the valve D and the liquid storage tank; the lower part of one end of the liquid storage tank is connected with a valve F through a pipeline and a valve E, and the valve F is connected with industrial equipment through a pipeline and a valve B; a heating pipe is arranged in the liquid storage tank, the heating pipe is S-shaped, the heating pipe is connected with a steam pipeline, a steam valve is arranged on the steam pipeline, and an overhaul manhole is arranged at the top of the liquid storage tank; the liquid storage pot other end lower part be connected with the centrifugal pump through pipeline and valve I, and install valve H between liquid storage pot and valve I, the centrifugal pump through pipe connection have valve J and valve K, valve K join with valve L through the pipeline and be connected with valve F, valve J and one-level membrane separator sub-unit connection, one-level membrane separator upper portion through pipe connection have valve Q and valve N, valve N connect on second grade membrane separator one end upper portion, second grade membrane separator one end lower part have valve P through pipe connection, valve Q and valve P join with valve F through the pipeline and be connected.
The pressure of the air compressor is not less than 1.5 times of the working pressure of the pipeline.
The liquid storage tank is made of carbon steel and is horizontal.
The first-stage membrane separator is a PEFT polymeric membrane.
The secondary membrane separator is a PEFT polymeric membrane.
The centrifugal pump is explosion-proof.
The high-efficiency energy-saving environment-friendly oil dirt cleaning device is ExdllBT4 explosion-proof.
The cleaning process comprises the following steps:
A) oil dirt hot water cleaning: opening a valve H, a valve I, a valve K and a valve E, starting the centrifugal pump to inject clear water into the liquid storage tank, and simultaneously opening a valve F, a valve B, a valve C and a valve D if the water quantity is insufficient, and injecting enough clear water into industrial equipment and pipelines for communicating the industrial equipment and the liquid storage tank; closing the valve H and the valve E, stopping the centrifugal pump, opening a steam valve on a steam pipeline to heat clear water in the liquid storage tank, starting the centrifugal pump again when the temperature of the clear water reaches 55-75 ℃ to enable industrial equipment and the clear water in the liquid storage tank to form closed cycle, observing the temperature value at the inlet of the industrial equipment, and adjusting the temperature at the inlet of the industrial equipment to be 55-75 ℃ by controlling the size of the steam valve; in the circulation process, if the circulating water contains more oil, discharging the oil-containing sewage into an oil sump, opening a valve H to supplement clean water into the liquid storage tank and heating to 55-75 ℃;
B) repeating the step A until the oil stain in the circulating water is less and is not increased any more, and draining the sewage in industrial equipment, a liquid storage tank and a pipeline;
C) cleaning oil stains with an organic solvent: opening a valve H to inject a sufficient amount of organic solvent type cleaning agent into the system; closing a valve H, forming closed cycle of the organic solvent type cleaning agent between the industrial equipment and a liquid storage tank, observing the pollution condition of the cleaning agent, gradually increasing pollutants in the cleaning agent along with the operation of a cleaning process, opening a valve J and a valve Q at the moment, closing a valve K, enabling the cleaning agent to enter a primary membrane separator, enabling the primary membrane separator to adopt membrane separation and permeation type filtration for filtering micro solid particle impurities and micro water in the organic solvent cleaning solution, continuously cleaning the industrial equipment after the cleaning agent is purified by the primary membrane separator, opening a valve N and a valve P after cleaning for a period of time, closing the valve Q, starting a secondary membrane separator, adopting a polymer membrane filtration technology with hydrophobic property by the secondary membrane separator, separating and filtering a large amount of dissolved water in the organic solvent cleaning solution, and continuously cleaning the industrial equipment after dehydration, impurity removal and purification, observing that the cleaning agent is pollution-free, and cleaning industrial equipment;
D) recovering and filling the organic solvent cleaning solution: closing the valve F, connecting the filling barrel at the outlet of the valve L, opening the valve L, filtering cleaning agents of industrial equipment and a liquid storage tank by a primary membrane separator and a secondary membrane separator under the power of a centrifugal pump, and then injecting the cleaning agents into the filling barrel; however, residual cleaning agents still exist in the industrial equipment and the cleaning system, at the moment, the air compressor is started, the air pressure valve A, the valve G, the valve M and the valve O are opened, and the residual cleaning agents in the cleaning system are filtered by the primary membrane separator and the secondary membrane separator under the action of air pressure and then are injected into the filling barrel;
E) the organic solvent cleaning solution is recycled: the recovered and filled organic solvent cleaning liquid can be directly recycled, and can also be recycled after distillation and regeneration treatment.
The invention has the beneficial effects that: the invention has the advantages of high cleaning efficiency, cleaning time saving, good cleaning effect, cleaning agent saving, small environmental pollution, simple operation, safety, explosion prevention and convenient movement.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Wherein: 1 is an air compressor, 2 is an air storage tank, 3 is a gas filter, 4 is industrial equipment, 5 is a valve A, 6 is a valve B, 7 is a valve C, 8 is a valve D, 9 is a liquid storage tank, 10 is a valve F, 11 is a valve E, 12 is a valve G, 13 is a valve H, 14 is a valve I, 15 is a centrifugal pump, 16 is a valve L, 17 is a valve K, 18 is a valve J, 19 is a primary membrane separator, 20 is a valve Q, 21 is a valve P, 22 is a valve O, 23 is a secondary membrane separator, 24 is a valve N, 25 is a valve M, 26 is a skid-mounted chassis, and 27 is a frame.
Detailed Description
The invention will be further described with reference to the accompanying drawings.
A high-efficiency energy-saving environment-friendly oil dirt cleaning device comprises a skid-mounted chassis 26, a frame 27, a compressed air system and a cleaning system, wherein the frame 27 is welded on four sides of the skid-mounted chassis 26, hoisting holes are formed in four corners of the top of the frame 27, and the cleaning system and the compressed air system are fixedly mounted on the top of the skid-mounted chassis 26; the compressed air system comprises an air compressor 1, an air storage tank 2 and a gas filter 3, wherein the air compressor 1 is connected with the air storage tank 2 through a pipeline, the air storage tank 2 is connected with the gas filter 3 through a pipeline, the gas filter 3 is connected to the top of industrial equipment 4 through a gas pipeline and a valve A5, and the gas filter 3 is respectively connected to the tops of a liquid storage tank 9, a primary membrane separator 19 and a secondary membrane separator 23 through a gas pipeline, a valve G12, a valve M25 and a valve Q20; the cleaning system comprises a liquid storage tank 9, a centrifugal pump 15, a primary membrane separator 19, a secondary membrane separator 23 and a valve, wherein the upper part of one end of the liquid storage tank 9 is connected with the industrial equipment 4 through a pipeline, a valve C7 and a valve D8, and a flowmeter, a thermometer and a pressure gauge are arranged between the valve D8 and the liquid storage tank 9; the lower part of one end of the liquid storage tank 9 is connected with a valve F10 through a pipeline and a valve E11, and the valve F10 is connected with the industrial equipment 4 through a pipeline and a valve B6; a heating pipe is arranged in the liquid storage tank 9 and is S-shaped, the heating pipe is connected with a steam pipeline, a steam valve is arranged on the steam pipeline, and an overhaul manhole is arranged at the top of the liquid storage tank 9; the device is characterized in that the lower part of the other end of the liquid storage tank 9 is connected with a centrifugal pump 15 through a pipeline and a valve I14, a valve H13 is arranged between the liquid storage tank 9 and a valve I14, the centrifugal pump 15 is connected with a valve J18 and a valve K17 through pipelines, the valve K17 and a valve L16 are connected with the valve F10 through a pipeline in a converging manner, the valve J18 is connected with the lower part of the primary membrane separator 19, the upper part of the primary membrane separator 19 is connected with a valve Q20 and a valve N24 through pipelines, the valve N24 is connected with the upper part of one end of the secondary membrane separator 23, the lower part of one end of the secondary membrane separator 23 is connected with a valve P21 through a pipeline, and the valve Q20 and the valve P21 are connected with the valve F10 through a pipeline in a converging manner.
The pressure of the air compressor 1 is not less than 1.5 times of the working pressure of the pipeline.
The liquid storage tank 9 is made of carbon steel, and the liquid storage tank 9 is horizontal.
The primary membrane separator 19 is a PEFT polymeric membrane.
The secondary membrane separator 23 is a PEFT polymeric membrane.
The centrifugal pump 15 is explosion-proof.
The high-efficiency energy-saving environment-friendly oil dirt cleaning device is ExdllBT4 explosion-proof.
The cleaning process comprises the following steps:
A) oil dirt hot water cleaning: opening a valve H13, a valve I14, a valve K17 and a valve E11, starting the centrifugal pump 15 to inject clean water into the liquid storage tank 9, and opening a valve F10, a valve B6, a valve C7 and a valve D8 simultaneously if the water quantity is insufficient, so as to inject enough clean water into the industrial equipment 4 and the pipeline of the industrial equipment 4 communicated with the liquid storage tank 9; closing a valve H13 and a valve E11, stopping the centrifugal pump 15, opening a steam valve on a steam pipeline to heat clear water in the liquid storage tank 9, starting the centrifugal pump 15 again when the temperature of the clear water reaches 55-75 ℃ to enable the industrial equipment 4 and the clear water in the liquid storage tank 9 to form closed cycle, observing the temperature value at the inlet of the industrial equipment 4, and adjusting the temperature at the inlet of the industrial equipment 4 to be 55-75 ℃ by controlling the size of the steam valve; in the circulation process, if the circulating water contains more oil, discharging the oil-containing sewage into an oil sump, opening a valve H13 to supplement clean water into the liquid storage tank 9 and heating to 55-75 ℃;
B) repeating the step A until the oil stain in the circulating water is less and is not increased any more, and draining the sewage in the industrial equipment 4, the liquid storage tank 9 and the pipeline;
C) cleaning oil stains with an organic solvent: opening valve H13 to inject a sufficient amount of organic solvent-based cleaner into the system; closing a valve H13, forming closed cycle of the organic solvent type cleaning agent between the industrial equipment 4 and the liquid storage tank 9, observing the pollution condition of the cleaning agent, gradually increasing the pollutants in the cleaning agent along with the operation of the cleaning process, opening a valve J18 and a valve Q20 at the moment, closing a valve K17, enabling the cleaning agent to enter a primary membrane separator 19, adopting membrane separation and permeation filtration by the primary membrane separator 19 for filtering micro solid particle impurities and micro water in the organic solvent cleaning solution, continuously cleaning the industrial equipment 4 after the cleaning agent is purified by the primary membrane separator 19, opening a valve N24 and a valve P21 after the cleaning is carried out for a period of time, closing a valve Q20, starting a secondary membrane separator 23, adopting a polymer membrane filtration technology with hydrophobic property by the secondary membrane separator 23, separating and filtering a large amount of dissolved water in the organic solvent cleaning solution, continuously cleaning the industrial equipment 4 after the dehydration, impurity removal and purification, after the cleaning agent is observed to be pollution-free, the industrial equipment 4 is cleaned;
D) recovering and filling the organic solvent cleaning solution: closing a valve F10, connecting a filling barrel at an outlet of a valve L16, opening a valve L16, filtering cleaning agents of the industrial equipment 4 and the liquid storage tank 9 by a primary membrane separator 19 and a secondary membrane separator 23 under the power of a centrifugal pump 15, and then injecting the cleaning agents into the filling barrel; however, residual cleaning agents still exist in the industrial equipment 4 and the cleaning system, at the moment, the air compressor 1 is started, the air pressure valve A5, the valve G12, the valve M25 and the valve O22 are opened, and the residual cleaning agents in the cleaning system are filtered by the primary membrane separator 19 and the secondary membrane separator 23 under the action of air pressure and then are injected into the filling barrel;
E) the organic solvent cleaning solution is recycled: the recovered and filled organic solvent cleaning liquid can be directly recycled, and can also be recycled after distillation and regeneration treatment.
Claims (8)
1. The utility model provides an energy-efficient environment-friendly oil dirt belt cleaning device, includes sled dress chassis (26), frame (27), compressed air system and cleaning system, its characterized in that: the four sides of the skid-mounted chassis (26) are welded with frames (27), hoisting holes are formed in the four corners of the top of each frame (27), and a cleaning system and a compressed air system are fixedly mounted on the top of the skid-mounted chassis (26); the compressed air system comprises an air compressor (1), an air storage tank (2) and a gas filter (3), wherein the air compressor (1) is connected with the air storage tank (2) through a pipeline, the air storage tank (2) is connected with the gas filter (3) through a pipeline, the gas filter (3) is connected to the top of the industrial equipment (4) through a gas pipeline and a valve A (5), and the gas filter (3) is respectively connected to the tops of a liquid storage tank (9), a primary membrane separator (19) and a secondary membrane separator (23) through a gas pipeline, a valve G (12), a valve M (25) and a valve Q (20); the cleaning system comprises a liquid storage tank (9), a centrifugal pump (15), a primary membrane separator (19), a secondary membrane separator (23) and a valve, wherein the upper part of one end of the liquid storage tank (9) is connected with industrial equipment (4) through a pipeline, a valve C (7) and a valve D (8), and a flowmeter, a thermometer and a pressure gauge are arranged between the valve D (8) and the liquid storage tank (9); the lower part of one end of the liquid storage tank (9) is connected with a valve F (10) through a pipeline and a valve E (11), and the valve F (10) is connected with industrial equipment (4) through a pipeline and a valve B (6); a heating pipe is arranged in the liquid storage tank (9) and is S-shaped, the heating pipe is connected with a steam pipeline, a steam valve is arranged on the steam pipeline, and an overhaul manhole is arranged at the top of the liquid storage tank (9); the lower part of the other end of the liquid storage tank (9) is connected with a centrifugal pump (15) through a pipeline and a valve I (14), and a valve H (13) is arranged between the liquid storage tank (9) and the valve I (14), the centrifugal pump (15) is connected with a valve J (18) and a valve K (17) through pipelines, the valve K (17) and the valve L (16) are converged by a pipeline and connected with the valve F (10), the valve J (18) is connected with the lower part of the first-stage membrane separator (19), the upper part of the first-stage membrane separator (19) is connected with a valve Q (20) and a valve N (24) through pipelines, the valve N (24) is connected with the upper part of one end of the secondary membrane separator (23), the lower part of one end of the secondary membrane separator (23) is connected with a valve P (21) through a pipeline, the valve Q (20) and the valve P (21) are converged by a pipeline and connected with the valve F (10).
2. The efficient energy-saving environment-friendly oil stain cleaning device as claimed in claim 1, wherein: the pressure of the air compressor (1) is not less than 1.5 times of the working pressure of the pipeline.
3. The efficient energy-saving environment-friendly oil stain cleaning device as claimed in claim 1, wherein: the liquid storage tank (9) is made of carbon steel, and the liquid storage tank (9) is horizontal.
4. The efficient energy-saving environment-friendly oil stain cleaning device as claimed in claim 1, wherein: the first-stage membrane separator (19) is a PEFT polymeric membrane.
5. The efficient energy-saving environment-friendly oil stain cleaning device as claimed in claim 1, wherein: the secondary membrane separator (23) is a PEFT polymeric membrane.
6. The efficient energy-saving environment-friendly oil stain cleaning device as claimed in claim 1, wherein: the centrifugal pump (15) is explosion-proof.
7. The efficient energy-saving environment-friendly oil stain cleaning device as claimed in claim 1, wherein: the high-efficiency energy-saving environment-friendly oil dirt cleaning device is ExdllBT4 explosion-proof.
8. The high-efficiency energy-saving environment-friendly oil stain cleaning device according to any one of claims 1 to 7, wherein the cleaning process comprises hot water cleaning of oil stains, cleaning of an oil stain organic solvent, recycling and filling of an organic solvent cleaning solution and recycling of the organic solvent cleaning solution, and is characterized in that:
the cleaning process comprises the following steps:
A) oil dirt hot water cleaning: opening a valve H (13), a valve I (14), a valve K (17) and a valve E (11), starting a centrifugal pump (15) to inject clean water into the liquid storage tank (9), and simultaneously opening a valve F (10), a valve B (6), a valve C (7) and a valve D (8) if the water quantity is insufficient, and injecting enough clean water into the industrial equipment (4) and the pipeline for communicating the industrial equipment (4) and the liquid storage tank (9); closing a valve H (13) and a valve E (11), stopping the centrifugal pump (15), opening a steam valve on a steam pipeline to heat clear water in the liquid storage tank (9), starting the centrifugal pump (15) again when the temperature of the clear water reaches 55-75 ℃ to enable the industrial equipment (4) and the clear water in the liquid storage tank (9) to form closed cycle, observing the temperature value at the inlet of the industrial equipment (4), and adjusting the temperature at the inlet of the industrial equipment (4) to be 55-75 ℃ by controlling the size of the steam valve; in the circulation process, if the circulating water contains more oil, discharging the oil-containing sewage into an oil sump, opening a valve H (13) to supplement clean water into the liquid storage tank (9) and heating to 55-75 ℃;
B) repeating the step A until the oil stain in the circulating water is less and is not increased any more, and draining the sewage in the industrial equipment (4), the liquid storage tank (9) and the pipeline;
C) cleaning oil stains with an organic solvent: opening a valve H (13) to inject a sufficient amount of organic solvent type cleaning agent into the system; closing a valve H (13), forming closed cycle by the organic solvent type cleaning agent between the industrial equipment (4) and a liquid storage tank (9), observing the pollution condition of the cleaning agent, gradually increasing the pollutants in the cleaning agent along with the operation of a cleaning process, opening a valve J (18) and a valve Q (20) at the moment, closing a valve K (17), enabling the cleaning agent to enter a primary membrane separator (19), filtering the primary membrane separator (19) in a membrane separation and permeation manner for filtering micro solid particle impurities and micro water in the organic solvent cleaning liquid, continuously cleaning the industrial equipment (4) after the cleaning agent is purified by the primary membrane separator (19), opening a valve N (24) and a valve P (21) after cleaning for a period of time, closing the valve Q (20), starting a secondary membrane separator (23), and enabling the secondary membrane separator (23) to adopt a polymer membrane filtration technology with hydrophobic property, separating and filtering a large amount of dissolved water in the organic solvent cleaning solution, continuously cleaning the industrial equipment (4) by the cleaning agent after dehydration, impurity removal and purification, and cleaning the industrial equipment (4) after observing that the cleaning agent is pollution-free;
D) recovering and filling the organic solvent cleaning solution: closing a valve F (10), connecting a filling barrel at the outlet of a valve L (16), opening the valve L (16), filtering cleaning agents of the industrial equipment (4) and the liquid storage tank (9) by a primary membrane separator (19) and a secondary membrane separator (23) under the power of a centrifugal pump (15), and injecting the cleaning agents into the filling barrel; however, residual cleaning agents still exist in the industrial equipment (4) and the cleaning system, at the moment, the air compressor (1) is started, the air pressure valve A (5), the valve G (12), the valve M (25) and the valve O (22) are opened, and the residual cleaning agents in the cleaning system are filtered by the primary membrane separator (19) and the secondary membrane separator (23) under the action of air pressure and then are injected into the filling barrel;
E) the organic solvent cleaning solution is recycled: the recovered and filled organic solvent cleaning liquid can be directly recycled, and can also be recycled after distillation and regeneration treatment.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811119040.2A CN109261658B (en) | 2018-09-26 | 2018-09-26 | Efficient energy-saving environment-friendly oil dirt cleaning device and cleaning process |
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| CN201811119040.2A CN109261658B (en) | 2018-09-26 | 2018-09-26 | Efficient energy-saving environment-friendly oil dirt cleaning device and cleaning process |
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| CN109261658B true CN109261658B (en) | 2021-09-28 |
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| CN201144164Y (en) * | 2007-09-03 | 2008-11-05 | 中国石油天然气管道局 | Vapor floating device for processing oil-contaminated water |
| CN101475267A (en) * | 2008-12-30 | 2009-07-08 | 杜元亭 | Wastewater recovering treatment apparatus of wet steam generator |
| DE102010047589A1 (en) * | 2010-10-07 | 2012-04-12 | Techno-Coat Sa | Apparatus for internal treatment of pipes |
| DE102011109093A1 (en) * | 2011-08-01 | 2013-02-07 | Manfred Völker | Combination of a single-user RO device with a hemodialysis machine |
| CN203079727U (en) * | 2012-12-29 | 2013-07-24 | 上海安赐机械设备有限公司 | Membrane device for treating oilfield produced water to be applied to reinjection |
| JP5730377B2 (en) * | 2013-11-13 | 2015-06-10 | 株式会社クボタ | Air diffuser and cleaning method of air diffuser |
| CN105542986B (en) * | 2016-01-15 | 2020-12-08 | 中林山水（北京）生态科技股份有限公司 | Pipe network oil stain cleaning agent and preparation method thereof |
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