CN110976257A - Processing method for improving safety of liquid light hydrocarbon containing tank - Google Patents
Processing method for improving safety of liquid light hydrocarbon containing tank Download PDFInfo
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- CN110976257A CN110976257A CN201911241402.XA CN201911241402A CN110976257A CN 110976257 A CN110976257 A CN 110976257A CN 201911241402 A CN201911241402 A CN 201911241402A CN 110976257 A CN110976257 A CN 110976257A
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- Prior art keywords
- parts
- tank body
- treatment
- tank
- light hydrocarbon
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- 229930195733 hydrocarbon Natural products 0.000 title claims abstract description 37
- 150000002430 hydrocarbons Chemical class 0.000 title claims abstract description 37
- 239000004215 Carbon black (E152) Substances 0.000 title claims abstract description 36
- 239000007788 liquid Substances 0.000 title claims abstract description 32
- 238000003672 processing method Methods 0.000 title claims description 7
- 238000005422 blasting Methods 0.000 claims abstract description 32
- 239000011248 coating agent Substances 0.000 claims abstract description 31
- 238000000576 coating method Methods 0.000 claims abstract description 31
- 238000000034 method Methods 0.000 claims abstract description 25
- 238000005498 polishing Methods 0.000 claims abstract description 23
- 238000004140 cleaning Methods 0.000 claims abstract description 16
- 238000004381 surface treatment Methods 0.000 claims abstract description 16
- 238000004321 preservation Methods 0.000 claims abstract description 8
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 42
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 36
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 21
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 16
- 239000007921 spray Substances 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 14
- 239000008367 deionised water Substances 0.000 claims description 14
- 229910021641 deionized water Inorganic materials 0.000 claims description 14
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 claims description 14
- 239000001257 hydrogen Substances 0.000 claims description 13
- 229910052739 hydrogen Inorganic materials 0.000 claims description 13
- 229920002748 Basalt fiber Polymers 0.000 claims description 10
- 239000010941 cobalt Substances 0.000 claims description 8
- 229910017052 cobalt Inorganic materials 0.000 claims description 8
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 8
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 claims description 7
- 244000137852 Petrea volubilis Species 0.000 claims description 7
- 239000002202 Polyethylene glycol Substances 0.000 claims description 7
- 229920001807 Urea-formaldehyde Polymers 0.000 claims description 7
- 229910052786 argon Inorganic materials 0.000 claims description 7
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 claims description 7
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 claims description 7
- 235000013539 calcium stearate Nutrition 0.000 claims description 7
- 239000008116 calcium stearate Substances 0.000 claims description 7
- 229910052593 corundum Inorganic materials 0.000 claims description 7
- 239000010431 corundum Substances 0.000 claims description 7
- 239000003822 epoxy resin Substances 0.000 claims description 7
- 229920000647 polyepoxide Polymers 0.000 claims description 7
- 229920001223 polyethylene glycol Polymers 0.000 claims description 7
- 239000004576 sand Substances 0.000 claims description 7
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 claims description 7
- 235000019982 sodium hexametaphosphate Nutrition 0.000 claims description 7
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 claims description 7
- PMQIWLWDLURJOE-UHFFFAOYSA-N triethoxy(1,1,2,2,3,3,4,4,5,5,6,6,7,7,10,10,10-heptadecafluorodecyl)silane Chemical compound CCO[Si](OCC)(OCC)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)CCC(F)(F)F PMQIWLWDLURJOE-UHFFFAOYSA-N 0.000 claims description 7
- 239000003973 paint Substances 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 11
- 239000010410 layer Substances 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- GZCGUPFRVQAUEE-SLPGGIOYSA-N aldehydo-D-glucose Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C=O GZCGUPFRVQAUEE-SLPGGIOYSA-N 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 239000006260 foam Substances 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000002283 diesel fuel Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003502 gasoline Substances 0.000 description 2
- 229910021389 graphene Inorganic materials 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 239000001273 butane Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- -1 graphite alkene Chemical class 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 239000003915 liquefied petroleum gas Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 1
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- QQQSFSZALRVCSZ-UHFFFAOYSA-N triethoxysilane Chemical compound CCO[SiH](OCC)OCC QQQSFSZALRVCSZ-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/22—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to internal surfaces, e.g. of tubes
- B05D7/227—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to internal surfaces, e.g. of tubes of containers, cans or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/002—Pretreatement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/06—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
- B05D3/068—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation using ionising radiations (gamma, X, electrons)
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/10—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by other chemical means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
- B05D5/12—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain a coating with specific electrical properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
- B24C1/06—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for producing matt surfaces, e.g. on plastic materials, on glass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
- B24C1/10—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for compacting surfaces, e.g. shot-peening
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2350/00—Pretreatment of the substrate
- B05D2350/30—Change of the surface
- B05D2350/33—Roughening
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2504/00—Epoxy polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2601/00—Inorganic fillers
- B05D2601/20—Inorganic fillers used for non-pigmentation effect
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2601/00—Inorganic fillers
- B05D2601/20—Inorganic fillers used for non-pigmentation effect
- B05D2601/24—Titanium dioxide, e.g. rutile
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2602/00—Organic fillers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Toxicology (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Chemical & Material Sciences (AREA)
- Catalysts (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses a treatment method for improving the safety of a tank for containing liquid light hydrocarbon, which is used for carrying out special surface treatment on the inner surface of the tank, and the surface treatment method specifically comprises the following steps: (1) polishing; (2) shot blasting treatment; (3) oil removal and cleaning treatment; (4) coating treatment of the paint; (5) carrying out irradiation treatment; (6) and (5) heat preservation treatment. The invention provides a treatment method for improving the safety of a liquid light hydrocarbon collecting tank, which effectively improves the use stability and safety of the collecting tank.
Description
Technical Field
The invention belongs to the technical field of light hydrocarbon storage equipment, and particularly relates to a treatment method for improving the safety of a liquid light hydrocarbon containing tank.
Background
The hydrocarbon is a series of substances formed by mixing two elements of carbon and hydrogen in different proportions. The lighter fraction is called light hydrocarbon. The main components of natural gas are C1 methane and small amount of C2 ethane, and the main components of liquefied petroleum gas are C3 propane and C4 butane, which are gaseous light hydrocarbons at normal temperature and pressure. The C5-C16 hydrocarbon is liquid at normal temperature and pressure, and is called liquid light hydrocarbon. The lightest part of the liquid light hydrocarbon is C5 and C6, the saturated C5 and C6 are the best raw materials for bubbling gas, and the heavier part is gasoline, kerosene, diesel oil and the like. Light hydrocarbon gas is the same as natural gas, can be used as primary energy to replace secondary energy such as liquefied gas, diesel oil, electricity and the like, and is an ideal gas source for energy transformation of industrial enterprises. The light hydrocarbon gas has passed the detection of the national environmental protection monitoring department, the national environmental protection department considers the gas project as the 'national key environmental protection practical technology promotion project', the construction department lists the novel gas as 'urban supplementary gas', and the gas is popularized and applied in the whole country. Light hydrocarbon is the raw material of light hydrocarbon gas, can be made into combustion gas for heat supply, and is commonly called as mixed air light hydrocarbon gas. The collecting tank used in the preparation and collection of the liquid light hydrocarbon needs to have strong mechanical strength and long-term corrosion resistance to prevent the liquid light hydrocarbon from permeating, corroding and reacting with the metal tank. In addition, it is desirable to have good antistatic properties to prevent accidents due to excessive static electricity. The application numbers are: 200420090230.3 discloses a gas-making device for light hydrocarbon liquid fuel, in which an explosion-proof layer and an electrostatic net are arranged, but the structure is more complex and is not suitable for popularization and use of most collecting tanks.
Disclosure of Invention
The invention aims to provide a treatment method for improving the safety of a liquid light hydrocarbon containing tank aiming at the existing problems.
The invention is realized by the following technical scheme:
a treatment method for improving the safety of a tank for containing liquid light hydrocarbon carries out special surface treatment on the inner surface of the tank, and the surface treatment method specifically comprises the following steps:
(1) polishing the inner surface of the tank body, wherein the mesh number of sand paper used in polishing is 300-800 meshes;
(2) shot blasting is carried out on the inner surface of the tank body, and the medium for controlling shot blasting during shot blasting is corundum sand;
(3) carrying out oil removal and cleaning treatment on the inner surface of the tank body, wherein the deoiling liquid used in the oil removal is acetone solution, and the solution used in the cleaning is deionized water;
(4) coating the inner surface of the tank body with a coating, wherein the coating comprises the following components in parts by weight: 30-35 parts of epoxy resin, 8-12 parts of urea resin, 3-6 parts of polyethylene glycol, 4-7 parts of heptadecafluorodecyltriethoxysilane, 10-15 parts of ethyl acetate, 3-5 parts of calcium stearate, 1-3 parts of nano titanium dioxide, 5-8 parts of basalt fiber, 2-4 parts of sodium hexametaphosphate, 2-3 parts of dioctyl phthalate and 80-90 parts of deionized water;
(5) carrying out irradiation treatment on the inner surface of the tank body, keeping the environment atmosphere of argon during the irradiation treatment, and continuously introducing methane and hydrogen to the inner surface of the tank body;
(6) and (4) putting the tank body processed in the step (5) into a constant temperature box, performing heat preservation treatment for 2-3 hours, and taking out.
Further, the spray head and the inner surface of the tank body are controlled to be vertically arranged during shot blasting in the step (2), and the distance between the spray head and the inner surface of the tank body is 35-40 cm; the air pressure is controlled to be 1.6-1.8 MPa.
Further, the volume fraction of acetone in the acetone solution in the step (3) is 10-14%.
Further, the particle size of the nano titanium dioxide in the step (4) is 20-60 nm.
Further, the irradiation treatment in the step (5) is cobalt 60-gamma ray irradiation treatment, and the irradiation dose rate is controlled to be 2-2.5 kGy/min; the flow rate of methane is 60-70 ml/min; the flow rate of the introduced hydrogen is 100-110 ml/min.
Further, the temperature in the incubator is controlled to be 80-85 ℃ during the heat preservation treatment in the step (6).
Compared with the prior art, the invention has the following advantages:
the invention provides a processing method for improving the safety of a liquid light hydrocarbon collecting tank, which is different from the traditional mode of adding a structure or singly using a coating, optimizes and improves the processing technology, effectively improves the use stability and the safety of the collecting tank, firstly polishes the inner surface of the tank body of the collecting tank in the processing process, removes surface impurities, is beneficial to subsequent processing, then performs shot blasting, effectively improves the compactness and the corrosion resistance of the surface tissue of the tank body by using the shot blasting, simultaneously moderately increases the surface roughness, is beneficial to the combination and fixation of the coating, then performs oil removal and cleaning processing, removes redundant impurity components such as shot blasting particles and the like, and then performs coating processing of a coating, so that the coating ensures the corrosion resistance and the stability of the inner surface of the collecting tank body, and performs irradiation processing operation for improving the effect, the irradiation treatment operation is optimized by the applicant through a large number of practical tests, and during the irradiation treatment, the cobalt 60-gamma ray has special energy which can promote the iron oxide component contained in the basalt fiber to reduce into atomic iron under the hydrogen atmosphere, and the atomic iron can promote the carbon chain in the catalytic methane to break, thereby depositing a large amount of graphene layers on the surface of the basalt fiber, forming a complex network structure by attaching the graphene layers to the surface of the basalt fiber, obviously improving the conductivity and antistatic capacity of the coating, and seventeen decafluorodecyl triethoxysilane that adds in the coating can be fixed with the effectual combination of graphite alkene layer, forms very stable barrier layer, has avoided the light hydrocarbon to the erosion of holding vessel, has carried out heat preservation at last, has promoted the stability of coating and the jar binding capacity between the body.
Drawings
FIG. 1 is a process flow diagram of the process of the present invention.
Detailed Description
A treatment method for improving the safety of a tank for containing liquid light hydrocarbon carries out special surface treatment on the inner surface of the tank, and the surface treatment method specifically comprises the following steps:
(1) polishing the inner surface of the tank body, wherein the mesh number of sand paper used in polishing is 300-800 meshes;
(2) shot blasting is carried out on the inner surface of the tank body, and the medium for controlling shot blasting during shot blasting is corundum sand;
(3) carrying out oil removal and cleaning treatment on the inner surface of the tank body, wherein the deoiling liquid used in the oil removal is acetone solution, and the solution used in the cleaning is deionized water;
(4) coating the inner surface of the tank body with a coating, wherein the coating comprises the following components in parts by weight: 30-35 parts of epoxy resin, 8-12 parts of urea resin, 3-6 parts of polyethylene glycol, 4-7 parts of heptadecafluorodecyltriethoxysilane, 10-15 parts of ethyl acetate, 3-5 parts of calcium stearate, 1-3 parts of nano titanium dioxide, 5-8 parts of basalt fiber, 2-4 parts of sodium hexametaphosphate, 2-3 parts of dioctyl phthalate and 80-90 parts of deionized water;
(5) carrying out irradiation treatment on the inner surface of the tank body, keeping the environment atmosphere of argon during the irradiation treatment, and continuously introducing methane and hydrogen to the inner surface of the tank body;
(6) and (4) putting the tank body processed in the step (5) into a constant temperature box, performing heat preservation treatment for 2-3 hours, and taking out.
Further, the spray head and the inner surface of the tank body are controlled to be vertically arranged during shot blasting in the step (2), and the distance between the spray head and the inner surface of the tank body is 35-40 cm; the air pressure is controlled to be 1.6-1.8 MPa.
Further, the volume fraction of acetone in the acetone solution in the step (3) is 10-14%.
Further, the particle size of the nano titanium dioxide in the step (4) is 20-60 nm.
Further, the irradiation treatment in the step (5) is cobalt 60-gamma ray irradiation treatment, and the irradiation dose rate is controlled to be 2-2.5 kGy/min; the flow rate of methane is 60-70 ml/min; the flow rate of the introduced hydrogen is 100-110 ml/min.
Further, the temperature in the incubator is controlled to be 80-85 ℃ during the heat preservation treatment in the step (6).
The invention is further illustrated by the following examples.
Example 1
A treatment method for improving the safety of a tank for containing liquid light hydrocarbon carries out special surface treatment on the inner surface of the tank, and the surface treatment method specifically comprises the following steps:
(1) polishing the inner surface of the tank body, wherein the mesh number of sand paper used in polishing is 300-800 meshes; the polishing purpose is mainly to finish the inner surface of the tank body, and corresponding polishing abrasive paper is specifically selected according to different tank bodies;
(2) shot blasting is carried out on the inner surface of the tank body, and the medium for controlling shot blasting during shot blasting is corundum sand;
(3) carrying out oil removal and cleaning treatment on the inner surface of the tank body, wherein the deoiling liquid used in the oil removal is acetone solution, and the solution used in the cleaning is deionized water;
(4) coating the inner surface of the tank body with a coating, wherein the coating comprises the following components in parts by weight: 30 parts of epoxy resin, 8 parts of urea-formaldehyde resin, 3 parts of polyethylene glycol, 4 parts of heptadecafluorodecyltriethoxysilane, 10 parts of ethyl acetate, 3 parts of calcium stearate, 1 part of nano titanium dioxide, 5 parts of basalt fiber, 2 parts of sodium hexametaphosphate, 2 parts of dioctyl phthalate and 80 parts of deionized water;
(5) carrying out irradiation treatment on the inner surface of the tank body, keeping the environment atmosphere of argon during the irradiation treatment, and continuously introducing methane and hydrogen to the inner surface of the tank body;
(6) and (5) putting the tank body processed in the step (5) into a constant temperature box, preserving heat for 2h, and taking out.
Further, controlling the spray head to be vertically arranged with the inner surface of the tank body during the shot blasting in the step (2), wherein the distance between the spray head and the inner surface of the tank body is 35 cm; the air pressure is controlled to be 1.6 MPa.
Further, the volume fraction of acetone in the acetone solution in the step (3) is 10%.
Further, the particle size of the nano titanium dioxide in the step (4) is 20-60 nm.
Further, the irradiation treatment in the step (5) is cobalt 60-gamma ray irradiation treatment, and the irradiation dose rate is controlled to be 2 kGy/min; the flow rate of the methane is 60 ml/min; the flow rate of hydrogen gas introduction was 100 ml/min.
Further, the temperature in the incubator is controlled to 80 ℃ during the heat-insulating treatment in the step (6).
Example 2
A treatment method for improving the safety of a tank for containing liquid light hydrocarbon carries out special surface treatment on the inner surface of the tank, and the surface treatment method specifically comprises the following steps:
(1) polishing the inner surface of the tank body, wherein the mesh number of sand paper used in polishing is 300-800 meshes; the polishing purpose is mainly to finish the inner surface of the tank body, and corresponding polishing abrasive paper is specifically selected according to different tank bodies;
(2) shot blasting is carried out on the inner surface of the tank body, and the medium for controlling shot blasting during shot blasting is corundum sand;
(3) carrying out oil removal and cleaning treatment on the inner surface of the tank body, wherein the deoiling liquid used in the oil removal is acetone solution, and the solution used in the cleaning is deionized water;
(4) coating the inner surface of the tank body with a coating, wherein the coating comprises the following components in parts by weight: 33 parts of epoxy resin, 10 parts of urea-formaldehyde resin, 5 parts of polyethylene glycol, 6 parts of heptadecafluorodecyltriethoxysilane, 12 parts of ethyl acetate, 4 parts of calcium stearate, 2 parts of nano titanium dioxide, 5 parts of basalt fiber, 2 parts of sodium hexametaphosphate, 2 parts of dioctyl phthalate and 80 parts of deionized water;
(5) carrying out irradiation treatment on the inner surface of the tank body, keeping the environment atmosphere of argon during the irradiation treatment, and continuously introducing methane and hydrogen to the inner surface of the tank body;
(6) and (5) putting the tank body processed in the step (5) into a constant temperature box, preserving heat for 2h, and taking out.
Further, controlling the spray head to be vertically arranged with the inner surface of the tank body during the shot blasting in the step (2), wherein the distance between the spray head and the inner surface of the tank body is 38 cm; the air pressure is controlled to be 1.7 MPa.
Further, the volume fraction of acetone in the acetone solution in the step (3) is 10%.
Further, the particle size of the nano titanium dioxide in the step (4) is 20-60 nm.
Further, the irradiation treatment in the step (5) is cobalt 60-gamma ray irradiation treatment, and the irradiation dose rate is controlled to be 2 kGy/min; the flow rate of the introduced methane is 65 ml/min; the flow rate of hydrogen was 105 ml/min.
Further, the temperature in the incubator is controlled to 82 ℃ during the heat-retaining treatment in the step (6).
Example 3
A treatment method for improving the safety of a tank for containing liquid light hydrocarbon carries out special surface treatment on the inner surface of the tank, and the surface treatment method specifically comprises the following steps:
(1) polishing the inner surface of the tank body, wherein the mesh number of sand paper used in polishing is 300-800 meshes; the polishing purpose is mainly to finish the inner surface of the tank body, and corresponding polishing abrasive paper is specifically selected according to different tank bodies;
(2) shot blasting is carried out on the inner surface of the tank body, and the medium for controlling shot blasting during shot blasting is corundum sand;
(3) carrying out oil removal and cleaning treatment on the inner surface of the tank body, wherein the deoiling liquid used in the oil removal is acetone solution, and the solution used in the cleaning is deionized water;
(4) coating the inner surface of the tank body with a coating, wherein the coating comprises the following components in parts by weight: 32 parts of epoxy resin, 10 parts of urea-formaldehyde resin, 6 parts of polyethylene glycol, 6 parts of heptadecafluorodecyltriethoxysilane, 12 parts of ethyl acetate, 5 parts of calcium stearate, 3 parts of nano titanium dioxide, 8 parts of basalt fiber, 4 parts of sodium hexametaphosphate, 3 parts of dioctyl phthalate and 90 parts of deionized water;
(5) carrying out irradiation treatment on the inner surface of the tank body, keeping the environment atmosphere of argon during the irradiation treatment, and continuously introducing methane and hydrogen to the inner surface of the tank body;
(6) and (5) putting the tank body processed in the step (5) into a constant temperature box, preserving heat for 3h, and taking out.
Further, controlling the spray head to be vertically arranged with the inner surface of the tank body during the shot blasting in the step (2), wherein the distance between the spray head and the inner surface of the tank body is 40 cm; the air pressure is controlled to be 1.8 MPa.
Further, the volume fraction of acetone in the acetone solution in the step (3) is 14%.
Further, the particle size of the nano titanium dioxide in the step (4) is 20-60 nm.
Further, the irradiation treatment in the step (5) is cobalt 60-gamma ray irradiation treatment, and the irradiation dose rate is controlled to be 2.3 kGy/min; the flow rate of the introduced methane is 65 ml/min; the flow rate of hydrogen gas introduction was 108 ml/min.
Further, the temperature in the incubator is controlled to 84 ℃ during the heat-retaining treatment in the step (6).
Example 4
A treatment method for improving the safety of a tank for containing liquid light hydrocarbon carries out special surface treatment on the inner surface of the tank, and the surface treatment method specifically comprises the following steps:
(1) polishing the inner surface of the tank body, wherein the mesh number of sand paper used in polishing is 300-800 meshes; the polishing purpose is mainly to finish the inner surface of the tank body, and corresponding polishing abrasive paper is specifically selected according to different tank bodies;
(2) shot blasting is carried out on the inner surface of the tank body, and the medium for controlling shot blasting during shot blasting is corundum sand;
(3) carrying out oil removal and cleaning treatment on the inner surface of the tank body, wherein the deoiling liquid used in the oil removal is acetone solution, and the solution used in the cleaning is deionized water;
(4) coating the inner surface of the tank body with a coating, wherein the coating comprises the following components in parts by weight: 35 parts of epoxy resin, 12 parts of urea-formaldehyde resin, 6 parts of polyethylene glycol, 7 parts of heptadecafluorodecyltriethoxysilane, 15 parts of ethyl acetate, 5 parts of calcium stearate, 3 parts of nano titanium dioxide, 8 parts of basalt fiber, 4 parts of sodium hexametaphosphate, 3 parts of dioctyl phthalate and 90 parts of deionized water;
(5) carrying out irradiation treatment on the inner surface of the tank body, keeping the environment atmosphere of argon during the irradiation treatment, and continuously introducing methane and hydrogen to the inner surface of the tank body;
(6) and (5) putting the tank body processed in the step (5) into a constant temperature box, preserving heat for 3h, and taking out.
Further, controlling the spray head to be vertically arranged with the inner surface of the tank body during the shot blasting in the step (2), wherein the distance between the spray head and the inner surface of the tank body is 40 cm; the air pressure is controlled to be 1.8 MPa.
Further, the volume fraction of acetone in the acetone solution in the step (3) is 14%.
Further, the particle size of the nano titanium dioxide in the step (4) is 20-60 nm.
Further, the irradiation treatment in the step (5) is cobalt 60-gamma ray irradiation treatment, and the irradiation dose rate is controlled to be 2.5 kGy/min; the flow rate of the introduced methane is 70 ml/min; the flow rate of hydrogen gas introduction was 110 ml/min.
Further, the temperature in the incubator is controlled to 85 ℃ during the heat-insulating treatment in the step (6).
The surface layer of the inner surface of the can body treated correspondingly in the above examples 1 to 4 is measured, and it is found that the adhesion of the coating is not less than 3MPa, the salt water resistance (3% sodium chloride, 27 +/-2 ℃, 48 h) paint film does not foam or fall off, the salt spray resistance (1400 h) paint film does not foam or fall off, the artificially accelerated aging performance (1600 h) paint film has no crack, no pulverization, the oil resistance (96 # gasoline, 180 h) does not foam, does not soften, and does not fall off, and the contained light hydrocarbon C5 (2200 h) does not foam, does not soften, and does not fall off. It can be seen that the safety of the tank body treated by the method is remarkably improved in the aspect of containing light hydrocarbon, and the integral corrosion resistance stability performance is reduced by at least 30% without the treatment corresponding to the step (5).
Claims (6)
1. A treatment method for improving the safety of a tank for containing liquid light hydrocarbon is characterized in that the inner surface of the tank is subjected to special surface treatment, and the surface treatment method specifically comprises the following steps:
(1) polishing the inner surface of the tank body, wherein the mesh number of sand paper used in polishing is 300-800 meshes;
(2) shot blasting is carried out on the inner surface of the tank body, and the medium for controlling shot blasting during shot blasting is corundum sand;
(3) carrying out oil removal and cleaning treatment on the inner surface of the tank body, wherein the deoiling liquid used in the oil removal is acetone solution, and the solution used in the cleaning is deionized water;
(4) coating the inner surface of the tank body with a coating, wherein the coating comprises the following components in parts by weight: 30-35 parts of epoxy resin, 8-12 parts of urea resin, 3-6 parts of polyethylene glycol, 4-7 parts of heptadecafluorodecyltriethoxysilane, 10-15 parts of ethyl acetate, 3-5 parts of calcium stearate, 1-3 parts of nano titanium dioxide, 5-8 parts of basalt fiber, 2-4 parts of sodium hexametaphosphate, 2-3 parts of dioctyl phthalate and 80-90 parts of deionized water;
(5) carrying out irradiation treatment on the inner surface of the tank body, keeping the environment atmosphere of argon during the irradiation treatment, and continuously introducing methane and hydrogen to the inner surface of the tank body;
(6) and (4) putting the tank body processed in the step (5) into a constant temperature box, performing heat preservation treatment for 2-3 hours, and taking out.
2. The processing method for improving the safety of the tank for containing the liquid light hydrocarbon according to claim 1, wherein the spray head and the inner surface of the tank body are controlled to be vertically arranged during the shot blasting in the step (2), and the distance between the spray head and the inner surface of the tank body is 35-40 cm; the air pressure is controlled to be 1.6-1.8 MPa.
3. The processing method for improving the safety of the tank for containing the liquid light hydrocarbon according to claim 1, wherein the volume fraction of acetone in the acetone solution in the step (3) is 10 to 14%.
4. The processing method for improving the safety of the tank for containing the liquid light hydrocarbon according to claim 1, wherein the particle size of the nano titanium dioxide in the step (4) is 20 to 60 nm.
5. The treatment method for improving the safety of the tank for containing the liquid light hydrocarbon according to claim 1, wherein the irradiation treatment in the step (5) is cobalt 60-gamma ray irradiation treatment, and the irradiation dose rate is controlled to be 2-2.5 kGy/min; the flow rate of methane is 60-70 ml/min; the flow rate of the introduced hydrogen is 100-110 ml/min.
6. The processing method for improving the safety of the tank for containing the liquid light hydrocarbon as claimed in claim 1, wherein the temperature in the incubator is controlled to be 80-85 ℃ during the heat preservation process in the step (6).
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| CN101289181A (en) * | 2008-05-29 | 2008-10-22 | 中国科学院化学研究所 | Doped graphene and method for preparing same |
| CN102134067A (en) * | 2011-04-18 | 2011-07-27 | 北京大学 | Method for preparing single-layer graphene |
| CN102212794A (en) * | 2011-04-13 | 2011-10-12 | 中国科学院上海微系统与信息技术研究所 | Copper plating substrate-based method for preparing large-area graphene film |
| CN102220566A (en) * | 2011-06-09 | 2011-10-19 | 无锡第六元素高科技发展有限公司 | Method for preparing single-layer or multi-layer graphene through chemical vapor deposition |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101289181A (en) * | 2008-05-29 | 2008-10-22 | 中国科学院化学研究所 | Doped graphene and method for preparing same |
| CN102212794A (en) * | 2011-04-13 | 2011-10-12 | 中国科学院上海微系统与信息技术研究所 | Copper plating substrate-based method for preparing large-area graphene film |
| CN102134067A (en) * | 2011-04-18 | 2011-07-27 | 北京大学 | Method for preparing single-layer graphene |
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