WO2017092100A1 - 非开挖式双层罐的改造方法及油品泄漏的检测方法 - Google Patents

非开挖式双层罐的改造方法及油品泄漏的检测方法 Download PDF

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WO2017092100A1
WO2017092100A1 PCT/CN2015/098835 CN2015098835W WO2017092100A1 WO 2017092100 A1 WO2017092100 A1 WO 2017092100A1 CN 2015098835 W CN2015098835 W CN 2015098835W WO 2017092100 A1 WO2017092100 A1 WO 2017092100A1
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layer
double
adhesive
tank
polymeric
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PCT/CN2015/098835
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English (en)
French (fr)
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魏东金
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深圳市百事达卓越科技股份有限公司
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Publication of WO2017092100A1 publication Critical patent/WO2017092100A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B1/00—Layered products having a non-planar shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/028—Net structure, e.g. spaced apart filaments bonded at the crossing points
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D90/00—Component parts, details or accessories for large containers
    • B65D90/02—Wall construction
    • B65D90/04—Linings
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • G01M3/32—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/02—Composition of the impregnated, bonded or embedded layer
    • B32B2260/021—Fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/04—Impregnation, embedding, or binder material
    • B32B2260/046—Synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2439/00—Containers; Receptacles
    • B32B2439/40—Closed containers

Definitions

  • the invention relates to a method for reforming a non-excavation double-layer tank, in particular to a method for reforming a non-excavation double-layer tank which has the performance of a double-layer tank by modifying the original single-layer tank.
  • Cans which have been used for more than 10 years, are subject to varying degrees of corrosion.
  • the double-layer tanks used are hard double-layer tanks, and the original single-layer tanks need to be excavated from the ground to make civil infrastructure and waterproof. After that, the double-layer tank after the completion of the production is buried in the ground, and the old single-layer tank is also processed. This requires huge cost and time, and it will also cause huge waste of social resources.
  • the present invention provides a method for reforming a non-excavation double-layer tank, and the method for reforming the trenchless double-layer tank comprises the steps of:
  • the method for modifying the non-excavation double-layer tank comprises the following steps:
  • the soft body 3D braided composite comprises: a 3D braid layer, an oil resistant layer, a barrier layer and an adhesive layer, and the 3D braid layer is provided with a gap penetrating through the layer.
  • step B, the step C and the step D are specifically:
  • the ceramic epoxy glue is coated on the inner surface of the can body to be modified, and the polymerized toughening ring is coated on the ceramic epoxy glue after 12-24 hours.
  • the ceramic epoxy rubber and the polymeric toughened epoxy rubber are two-component reactive rubber, or a reactive silicone rubber adhesive, a reactive polyurethane adhesive, a reactive polyurethane hot melt adhesive, Conductive ceramic epoxy adhesive, one-component moisture curing adhesive, two-component reactive thermosetting polyurethane.
  • the barrier layer is a barrier type oil-repellent leakage polyurethane
  • the polyurethane is a thermoplastic polyurethane
  • the oil resistant layer material is a static conductive polyether thermoplastic polyurethane
  • the thermoplastic elastomer material It is an oil resistant polyester elastomer or an oil resistant polyether thermoplastic polyurethane or a static conductive thermoplastic elastomer material.
  • the adhesive layer is a thermoplastic elastomer, and the adhesive layer is a TPC polyester elastomer or a polyurethane elastomer;
  • the material of the 3D woven layer is industrial polyester yarn or glass fiber.
  • the material of the 3D woven layer is industrial polyester yarn or glass fiber.
  • the soft 3D braided composite described in the step E is in the form of a capsule or a module.
  • the capsule body has the same shape as the can body, and the module is in the form of a sheet body or a curved sheet body, and the modules are connected by a sealing strip.
  • the invention also provides a non-excavation double-layer tank air leakage detecting method, wherein the non-excavation double-layer tank air leakage detecting method comprises: placing the detecting end of the oil product leak detecting device into the non-excavation type double The detection of whether or not the oil leaks is detected in the gap through the layer provided in the 3D braid layer in the layer tank.
  • the invention has the beneficial effects that the reforming method of the non-excavation double-layer tank provided by the invention can transform the single-layer tank buried in the ground, so that the original single-layer tank has the excellent property of the double-layer tank, and The cost required is much lower than the cost required to replace the double-layer tank.
  • the present invention can be equipped with an oil leak detection device for real-time detection in the gap of the through-layer on the 3D braid layer, and the method can accurately and timely display whether the oil tank is There is a situation of oil leakage, which improves the safety of the tank.
  • FIG. 1 is a schematic cross-sectional structural view of a modified tank after a modified method of a non-excavation double-layer tank and a method for detecting oil leakage;
  • FIG. 2 is a cross-sectional view showing a soft body 3D braided composite in a method for reforming a trenchless double tank according to the present invention and a method for detecting oil leakage.
  • the present invention provides a method for reforming a non-excavation double-layer tank, and the method for reforming the trenchless double-layer tank comprises the steps of:
  • A cleaning the inner surface of the can body 101 to be modified
  • the soft body 3D braided composite 200 is attached to the colloid, so that the soft body 3D braided composite 200 and the can body 101 to be modified form a double tank structure.
  • the method for modifying the non-excavation double-layer tank comprises the steps of:
  • A cleaning the inner surface of the can body 101 to be modified
  • the soft body 3D braided composite 200 includes a 3D braid layer 201, an oil resistant layer 202, a barrier layer 203, and an adhesive layer 204.
  • the 3D braid layer 201 is provided with a gap 205 penetrating through the layer.
  • the oil-resistant layer 202 is a layer of oil-resistant aging, corrosion, and long-term oil storage does not separate out the material to contaminate the inner layer;
  • the barrier layer 203 is a barrier oil and oil
  • the intermediate layer of the leaking and penetrating composite film, the barrier layer 203 acts as a barrier oil in the soft 3D braided composite film body 200 to penetrate into the 204 adhesive layer and the soft body 3D braided composite 200, thereby blocking
  • the key role of oil and gas infiltration which will effectively prevent the oil and oil from penetrating in the past and contact with other layers outside the barrier layers such as 204, 103 and 102, and be impregnated and corroded by the oil, thereby greatly improving the overall performance of the double-layer tank.
  • the service life is a layer of oil-resistant aging, corrosion, and long-term oil storage does not separate out the material to contaminate the inner layer;
  • the barrier layer 203 is a barrier oil and oil
  • the inner surface of the can body 101 to be modified is cleaned by a degreaser to clean the inner surface of the can body 101, or the inner surface of the can body 101 is cleaned by sand blasting or steaming, and naturally dried, because the oil tank is used for a long time, A large amount of oil stains are stuck on the inner wall, and the oil tank after washing and drying is more convenient for coating the glue layer.
  • step B, the step C and the step D are specifically:
  • the ceramic epoxy adhesive 102 is coated on the inner surface of the can body 101 to be modified, and coated on the ceramic epoxy adhesive 102 after 12-24 hours.
  • the ceramic epoxy adhesive 102 and the polymeric toughened epoxy adhesive 103 are two-component reactive adhesive, or a reactive silicone rubber adhesive, a reactive polyurethane adhesive, and a reactive polyurethane hot melt.
  • Glue conductive ceramic epoxy, one-component moisture-curing adhesive, two-component reactive thermosetting polyurethane.
  • the adhesive layer functions as a bonding mesh and a 3D braiding composite.
  • the inventors chose the ceramic epoxy adhesive 102 and the polymeric toughened epoxy adhesive 103 for the purpose of: (1) because it is non-open The technique of digging, the initial state of our colloid is mostly liquid or paste, which is convenient for construction in the tank body, and our actual technology requires the colloid to become a hard rubber layer and soft body 3D weaving after solidification reaction in the design time.
  • the composite 200 is firmly bonded together to form a sturdy double layer inner layer.
  • One-component reactive gels generally react with water molecules in the air, making it difficult to store and control the setting time.
  • the two-component reaction type glue is relatively easy to store, usually A and B glues. Only when mixed in proportion, it will react within the designed time.
  • the main component is epoxy glue combined with ceramic powder, epoxy resin and additive.
  • the epoxy glue added with ceramic micro-powder will be abnormally hard after reaction solidification, used for laying
  • the primer is the best choice.
  • Conductive ceramic epoxy glue can also be used according to the needs of construction.
  • the composition is made up of ceramic powder with a particle size of 30 microns or less, silane, conductive carbon black and epoxy resin plus additives. It is very easy to realize and obtain.
  • the polymeric toughened epoxy adhesive 103 is because the adhesive layer 204 of our soft 3D braided composite 200 is a combination of an elastomeric material and a polymeric toughened epoxy adhesive after several months of foaming aging test. Confirm that their adhesion is the best.
  • the traditional toughened epoxy is obtained by adding a toughening agent externally, and is not firmly bonded to the polyurethane material.
  • This polymeric toughening technique is obtained by "designing molecular structure polymerization.”
  • the principle is that the polyisocyanate and the hydroxyl terminated polyether are reacted to form the designed polyurethane, the isocyanate at the two ends of the polyurethane is sealed, and the product is stably stored at normal temperature, and is used as an active toughening agent for the epoxy resin adhesive, which is the same as the elastomer.
  • the film is fully compatible with bonding.
  • the peel strength of the bond is stronger than that of the film body.
  • the inventor has performed multiple peel tests, the film sealing strip has been broken and the bonded portion is still intact. It is not difficult for the inventors to believe that any other gum which can achieve the same or similar effects of the present invention should also fall within the scope of the present invention.
  • the barrier layer 203 in the soft body 3D braided composite 200 is disposed between the oil resistant layer 202 and the adhesive layer 204, and the 3D braid layer 201 is disposed outside the adhesive layer 204.
  • the 3D woven layer 201 is bonded to the polymeric toughened epoxy adhesive 103.
  • the barrier layer 203 is a barrier type oil-repellent leakage polyurethane
  • the polyurethane is a thermoplastic polyurethane, preferably a thermoplastic polyurethane obtained by reacting an aromatic diisocyanate with a small molecule diol, and a barrier layer 203
  • the soft body 3D braided composite 200 it plays a key role in blocking the oil penetration soft body 3D braided composite 200, so that it is very effective to protect the adhesive layers of 103 and 102 from contact with oil and oil. Long-term impregnation corrosion, thereby greatly improving the overall service life of the double-layer tank, is one of the important technical features of the present invention.
  • the oil resistant layer 202 material is an electrostatic conductive thermoplastic elastomer
  • the thermoplastic elastomer material is a polyether type (TPC/also called TPEE) polyester elastomer or a polyether type TPU polyurethane elastomer. material.
  • the adhesive layer 204 is a thermoplastic elastomer material, and the adhesive layer 204 is preferably a (TPC/also called TPEE) polyester elastomer or a polyurethane elastomer material, and the adhesive layer 204 is bonded.
  • the barrier layer 203 and the 3D woven layer 201, the adhesive layer 204 is made of an elastomer material because the barrier layer is an elastomer, and a TPC/TPPE polyester elastomer material is used for better fusion with the barrier layer.
  • the material of the 3D woven layer 201 is industrial polyester fiber or glass fiber, because the three-dimensional knitting machine can The multi-layer weaving is realized in a weaving process, and the fibers between the layers are interlaced and interlocked, and the upper surface layer and the lower surface layer are separate weaving techniques, which completely solves the problem of interlayer delamination of the parts. Selection of Industrial Polyester Silk or Glass Fiber In order to give the 3D woven layer 201 a certain strength, the inventors can easily conclude that other 3D textiles which can achieve similar effects should also fall within the scope of the present invention.
  • the 3D woven layer 201 can be inserted into the gap 205 of the layer to be inserted into the detecting end of the oil detecting device for detecting whether the oil tank has oil leakage, and whether the oil in the oil tank leaks can play a role in detection.
  • the 3D woven layer 201 also functions as a layering function, and the oil-resistant layer 202, the barrier layer 203 and the adhesive layer 204 of the soft body 3D woven composite body 200 are separated from the can body 101, and the function is double.
  • the effect of the layer can is an important part of the technical features of the present invention.
  • the soft body 3D braided composite 200 described in the step E is in the form of a capsule or a module.
  • the present invention provides two technical solutions, depending on the shape of the oil tank and the construction environment. Different, choose the appropriate technical solution. For the shape regularity and construction conditions, we prefer to bond the soft 3D braided composite body 200 with the inner surface of the tank to the inner surface of the tank. In the case of relatively complex structures, we use a splicing method to achieve the same effect.
  • the capsule body has the same shape as the inner wall of the can body 101, and the module is a sheet body or a curved piece body, and the modules are connected by a sealing strip to ensure the soft body 3D braiding composite body 200.
  • the tightness of the capsule produced is one of the important steps to achieve the success of the double-layer tank transformation.
  • the invention also provides a detection method for the double-layer tank, and the leakage detection method of the double-layer oil storage tank is mainly divided into a pressure/vacuum detection method and a liquid medium detection method, and both methods are formed by using the double-layer tank 101.
  • the gap 205 spaces create a certain air pressure or inject liquid in the space of the gap 205.
  • the gas pressure can be generated by compressed gas or vacuum; the test liquid should use a liquid that can be naturally degraded without reacting with the liquid.
  • use the detection system to detect changes in its air pressure or liquid level to determine whether the tank is seeping or leaking. If a level test is used, the test probe is placed at the bottom of the tank or the liquid is directed to the ground for testing.
  • air pressure detection it needs to be inflated in the 205 layer to maintain a relatively stable air pressure range for a long time, and the air pressure is detected in real time, and if there is leakage air pressure, it will change.
  • a method for manufacturing a soft body 3D braided composite 200 which comprises: three extruders are arranged on a three-layer co-extruded casting device, and each extruder has an independent feeding.
  • the material storage device stores, in each of the three feeding devices, a raw material for producing the oil resistant layer 202, a barrier type polyurethane for forming the barrier layer 203, and a thermoplastic elastomer raw material for forming the adhesive layer 204.
  • the prepared 3D woven layer 201 is unwound on the casting.
  • the unwinding 3D woven layer 201 is subjected to a bake treatment prior to encountering the melt, depending on processing requirements.
  • Three extruders on the three-layer co-extrusion equipment simultaneously extrude the oil-resistant layer 202, the barrier layer 203 and the adhesive layer 204 into the three-in-one mold cavity, so that the three molten colloids are hierarchically ordered.
  • the three-in-one colloid is melted and flows to the unwinded 3D woven layer 201, and then pressed and cooled by a roller to form a four-in-one soft 3D woven composite 200.
  • the present invention also provides a method for an operator to operate through a reservoir manhole 105 into a storage tank, the steps comprising:
  • a two-component reactive thermosetting polyurethane adhesive is selected.
  • the soft 3D braided composite 200 includes a 3D braided layer 201, and the 3D braided layer 201 is provided with a gap 205 extending through the layer. Bonded to the mesh cloth 104 to which the reactive adhesive is applied.
  • the two-component adhesive will cure from sufficient reaction within a few hours to form a strong inner layer. It is recommended to repair the oil after 48 hours of repair.
  • a polymeric toughened epoxy adhesive is used.
  • the soft 3D braided composite 200 includes a 3D braid 201, an oil resistant layer 202, a barrier layer 203, and an adhesive layer 204.
  • the 3D woven layer 201 is provided with a gap 205 penetrating through the layer, and the outer surface of the 3D woven layer 201 is coated with the reactive adhesive, and the 3D woven layer 201 coated with the reactive adhesive is coated with the reactivity.
  • the mesh cloth 104 of the adhesive is bonded.
  • the two-component adhesive will cure from sufficient reaction within a few hours to form a strong inner layer. It is recommended to repair the oil after 48 hours of repair.
  • the invention has the beneficial effects that the reforming method of the non-excavation double-layer tank provided by the invention can transform the single-layer tank buried in the ground, so that the original single-layer tank has the excellent property of the double-layer tank, and Required The cost is much lower than the cost required to replace the double-layer tank.
  • the present invention can be equipped with an oil leak detection device for real-time detection in the gap of the through-layer on the 3D braid layer, and the method can accurately and timely display whether the oil tank exists. The leakage of oil improves the safety of the tank.

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Abstract

一种非开挖双层罐的改造方法及油品泄漏检测方法，尤其涉及通过对原有单层罐进行非开挖改造使其具有双层罐性能的改造方法。改造方法包括：将待改造的罐体（101）内表面进行清洁处理；将清洁处理后的罐体（101）内表面涂胶；将网格布（104）浸埋入胶体内；再将软体3D编织复合膜体（200）贴到胶体上，胶体反应后，使软体3D编织复合膜体（200）与所述待改造的罐体（101）形成双层罐结构。在3D编织层（201）上的贯穿层面的间隙（205）内可设置油品检漏装置是否存在油品泄漏进行实时检测。该方法可以对埋在地下的单层罐进行改造，使原有埋在地下的单层罐不用开挖就能改造拥有双层罐的功能，不但可以减少油品的泄漏问题，也可以对油品是否泄漏进行实时检测，大大提升了储油的安全性。

Description

非开挖式双层罐的改造方法及油品泄漏的检测方法 【技术领域】
本发明涉及非开挖双层罐的改造方法，尤其涉及一种通过对原有单层罐进行改造使其具有双层罐性能的非开挖双层罐的改造方法。
【背景技术】
在现有的技术中，国内的加油站中几乎都在使用单层罐，将单层罐埋在地下，经过多年时间的使用后，单层金属罐会慢慢被氧化腐蚀，会出现油品渗漏等情况，这样不但浪费了燃油资源，也会对油罐附近的生态环境造成破坏，严重污染地下水，因此，目前国家明确要求新油站的储油罐必须采用双层罐，强制推行使用；但是我们改革开放高速发展了30多年，目前全国已有10几万座加油站，每个加油站平均按4个油罐计算，共约50万个油罐埋在地下，而且都是单层罐，并部分使用超过10年，都承受着不同程度的腐蚀。而目前在国内国外的现有单层罐改造双层罐技术中，所运用的双层罐都是硬质双层罐，需要将原有的单层罐从地下挖出，做土木基建、防水等后，再将制作完成后的双层罐埋在地下，而且还要对旧的单层罐做处理。这样需要耗费的巨大成本和时间，更会造成巨大的社会资源的浪费。
【发明内容】
为了解决现有技术中存在的问题，本发明提供了一种非开挖式双层罐的改造方法，所述非开挖式双层罐的改造方法包括步骤：
A:将待改造的罐体内表面进行清洁；
B:将清洁后的罐体内表面涂胶；
C:将网格布浸埋入胶体内；
D:将软体3D编织复合体贴到胶体上，使所述软体3D编织复合体与所述待改造的罐体形成双层罐结构。
在本发明的技术方案中，还提供了一种优选方案，包括：所述非开挖式双层罐的改造方法具体包括步骤：
A:清洁待改造的罐体内表面；
B:将陶瓷环氧胶涂敷在所述罐体内表面；
C:在所述陶瓷环氧胶上涂敷聚合型增韧环氧胶；
D:在所述聚合型增韧环氧胶上铺设网格布，使所述网格布埋入所述聚合型增韧环氧胶内；
E:在所述聚合型增韧环氧胶上粘结软体3D编织复合体，使所述软体3D编织复合体与所述待改造的罐体形成双层罐结构；
其中，所述软体3D编织复合体包括：3D编织层、耐油层、阻隔层和黏合层，所述3D编织层设置有贯穿层面的间隙。
本发明的优选技术方案为：所述步骤B、步骤C和步骤D具体为：
所述待改造的罐体内表面晾干后将所述陶瓷环氧胶涂敷在所述待改造的罐体内表面，12-24小时后在所述陶瓷环氧胶上涂敷聚合型增韧环氧胶，在所述聚合型增韧环氧胶上铺设网格布，在所述网格布上再涂敷所述聚合型增韧环氧胶，使所述网格布完全浸入所述聚合型增韧环氧胶内。
本发明的优选技术方案为：所述陶瓷环氧胶和聚合型增韧环氧胶为双组分反应型胶，或是反应性硅橡胶胶粘剂、反应性聚氨酯胶粘剂、反应性聚氨酯热熔胶、导电型陶瓷环氧胶、单组分湿气固化型胶粘剂、双组分反应型热固聚氨酯。
本发明的优选技术方案为：所述阻隔层为阻隔型防油品渗漏的聚氨酯，所述聚氨酯为热塑性聚氨酯；所述耐油层材料为导静电聚醚型热塑性聚氨酯，所述热塑性弹性体材料为耐油的聚酯弹性体或耐油聚醚型热塑性聚氨酯或导静电的热塑性弹性体材料。
本发明的优选技术方案为：所述黏合层为热塑性弹性体，所述黏合层为TPC聚酯弹性体或聚氨酯弹性体；
所述3D编织层的材料为工业涤纶丝或玻璃纤维。
所述3D编织层的材料为工业涤纶丝或玻璃纤维。
本发明的优选技术方案为：所述步骤E中所述的软体3D编织复合体呈囊体状或模块状。
本发明的优选技术方案为：所述囊体与所述罐体形状一致，所述模块状为片体或弧片体，各模块之间通过密封条连接。
本发明还提供了一种非开挖式双层罐漏气检测方法，所述非开挖式双层罐漏气检测方法包括：将油品测漏装置的检测端置入非开挖式双层罐内的3D编织层上设置的贯穿层面的间隙内进行油品是否泄漏的检测。
本发明的有益效果在于：本发明所提供的非开挖式双层罐的改造方法可以对埋在地下的单层罐进行改造，使原有的单层罐拥有双层罐的优秀属性，并且所需要的成本远低于更换双层罐所需要的成本，本发明在3D编织层上的贯穿层面的间隙内可设置油品检漏装置进行实时检测，该方法可以准确及时的显示油罐是否存在油品泄漏的情况，提升了油罐的安全性。
【附图说明】
图1为本发明非开挖式双层罐的改造方法及油品泄漏的检测方法中改造后油罐的剖面结构示意图；
图2为本发明非开挖式双层罐的改造方法及油品泄漏的检测方法中软体3D编织复合体的剖视图。
【具体实施方式】
以下结合说明书附图1和附图2对本发明技术方案进行详细说明：
为了解决现有技术中存在的问题，本发明提供了一种非开挖式双层罐的改造方法，所述非开挖式双层罐的改造方法包括步骤：
A:将待改造的罐体101内表面进行清洁；
B:将清洁后的罐体101内表面涂胶；
C:将网格布104浸埋入胶体内；
D:将软体3D编织复合体200贴到胶体上，使所述软体3D编织复合体200与所述待改造的罐体101形成双层罐结构。
在本发明的技术方案中，还提供了一种优选方案，包括：所述非开挖式双层罐的改造方法包括步骤：
A:清洁待改造的罐体101内表面；
B:将陶瓷环氧胶102涂敷在所述罐体101内表面；
C:在所述陶瓷环氧胶102上涂敷聚合型增韧环氧胶103；
D:在所述聚合型增韧环氧胶103上铺设网格布104，使所述网格布104埋入所述聚合型增韧环氧胶103内；
E:在所述聚合型增韧环氧胶103上粘结软体3D编织复合体200，使所述软体3D编织复合体200与所述待改造的罐体101形成双层罐结构；
其中，所述软体3D编织复合体200包括：3D编织层201、耐油层202、阻隔层203和黏合层204，所述3D编织层201设置有贯穿层面的间隙205。
在本发明的技术方案中，所述耐油层202为一层耐油老化、腐蚀、且长期储油不会分解析出物质污染油品的内膜层；所述的阻隔层203为阻隔油品油气渗漏和穿透的复合膜的中间层，所述的阻隔层203在软体3D编织复合膜体200中起到阻隔油品油气渗透到204黏合层及软体3D编织复合体200里，起到阻隔油品油气渗透的关键作用，这样就会非常有效地阻止油品油气渗透过去跟204、103和102等阻隔层外面的其他各层接触而受油品的浸渍腐蚀，从而大大提高双层罐整体的使用寿命。
所述步骤A中清洁待改造的罐体101内表面采用除油剂清洁罐体101内表面，或采用喷砂或再蒸汽清洁罐体101内表面，自然干燥，因为油罐长时间的使用，内壁上粘有大量的油渍，清洗干燥后的油罐更加方便胶层的涂敷。
在本发明的技术方案中，所述步骤B、步骤C和步骤D具体为：
所述待改造的罐体101内表面晾干后将所述陶瓷环氧胶102涂敷在所述待改造的罐体101内表面，12-24小时后在所述陶瓷环氧胶102上涂敷聚合型增韧环氧胶103，在所述聚合型增韧环氧胶103上铺设网格布104，在所述网格布104上再涂敷所述聚合型增韧环氧胶103，使所述网格布104完全浸入所述聚合型增韧环氧胶103内，按照所述方法操作，可以在油罐内壁形成一层坚固的胶层。在本发明的技术方案中，所述陶瓷环氧胶102和聚合型增韧环氧胶103为双组分反应型胶，或是反应性硅橡胶胶粘剂、反应性聚氨酯胶粘剂、反应性聚氨酯热熔胶、导电型陶瓷环氧胶、单组分湿气固化型胶粘剂、双组分反应型热固聚氨酯。胶层起到粘合网布以及3D编制复合体的作用，在本发明中，发明人之所以选择陶瓷环氧胶102和聚合型增韧环氧胶103，目的是：(1)因为是非开挖的技术，我们胶体在的初始状态多是液态或膏状的，这样方便在罐体内施工，而我们实际技术要求胶体在设计的时间内凝固反应后要变成坚硬的胶层与软体3D编织复合体200牢牢地粘连在一起，形成坚固的双层罐内层。(2)单组分反应型胶一般是跟空气中的水分子反应，不容易储存和控制凝固时间。而双组分反应型胶水比较容易储存，通常是A、B胶，只有按比例混合后会在设计的时间内才反应，这样可以通过不同比例调配混合来达到我们设计的凝固时间和粘接强度。(3)选择陶瓷环氧胶102，主要成分是陶瓷粉、环氧树脂和添加剂结合的环氧胶，这种添加了陶瓷微粉的环氧胶在反应凝固后会异常的坚硬，用来铺设做底胶是最好的选择。根据施工的需要还可以采用导电型的陶瓷环氧胶，它的主 要成分是粒径30微米以下的陶瓷粉、硅烷、导电炭黑及环氧树脂加添加剂配制而成的，非常容易实现和获得。
(4)聚合型增韧环氧胶103是因为我们的软体3D编织复合体200的黏合层204是弹性体材料与聚合型增韧环氧胶的结合是经过几个月的泡油老化测试，证实他们的粘接力是最好的。传统的增韧型环氧都是采用外添加增韧剂而得到的，跟聚氨酯材料粘接不牢。而这种聚合型增韧技术是通过“设计分子结构聚合反应”而得到了。原理是采用多异氰酸酯与端羟基聚醚反应聚合成所设计的聚氨酯，封闭聚氨酯两端的异氰酸根，得以在常温下稳定储存，并用它作为环氧树脂胶粘剂的活性增韧剂，这跟弹性体薄膜完全兼容粘接。粘接的剥离强度比薄膜本体还强。发明人做过多次剥离测试，薄膜密封条被拉断了而粘接的部位还完好无损。本发明人不难认为，只要可以达到本发明相同或相似效果的其他胶类，也应当属于本发明的保护范围。
在本发明的技术方案中，所述的软体3D编织复合体200中的所述阻隔层203设置在耐油层202和黏合层204之间，所述3D编织层201设置在黏合层204的外侧，所述3D编织层201与所述聚合型增韧环氧胶103粘结。
在本发明的技术方案中，所述阻隔层203为阻隔型防油品渗漏的聚氨酯，所述聚氨酯为热塑性聚氨酯，首选芳香族二异氰酸酯与小分子二醇反应得到的热塑性聚氨酯，阻隔层203在软体3D编织复合体200中起到阻隔油品穿透软体3D编织复合体200的关键作用，这样就会非常有效地保护到103和102胶层不会接触到油品，免受油品的长期浸渍腐蚀，从而大大提高了双层罐的整体使用寿命，这是本发明的重要技术特征之一。
在本发明的技术方案中，所述耐油层202材料为导静电热塑性弹性体，所述热塑性弹性体材料为聚醚型(TPC/也叫TPEE)聚酯弹性体或聚醚型TPU聚氨酯弹性体材料。
在本发明的技术方案中，所述黏合层204为热塑性弹性体材料，所述黏合层204首选(TPC/也叫TPEE)聚酯弹性体或聚氨酯弹性体材料，黏合层204在起到粘合阻隔层203和3D编织层201，黏合层204选用弹性体材料是因为阻隔层是弹性体，为了跟阻隔层更好的熔接所以选用(TPC/也叫TPEE)聚酯弹性体材料。
所述3D编织层201的材料为工业涤纶丝或玻璃纤维，因为三维编织机可以 在一个编织过程实现多层编织，且层与层之间的纤维相互交错互锁，上表层和下表层是分开中间隔空的编织技术，彻底解决了制件的层间分层问题。选用工业涤纶丝或玻璃纤维为了让3D编织层201具有一定的强度，本发明人不难认为，其他可以达到相似作用的3D纺织品也应当属于本发明的保护范围。
所述3D编织层201贯穿层面的间隙205内可插入油品检测装置的检测端用于检测油罐是否有油品泄漏，对油罐中的油品是否泄漏可以起到检测的作用，在本发明中，所述3D编织层201还起到了分层的作用，将软体3D编织复合体200的耐油层202、阻隔层203和黏合层204与罐体101分隔开来，功能上达到了双层罐的效果，是本发明技术特征的重要组成部分。
在本发明的技术方案中，所述步骤E中所述的软体3D编织复合体200呈囊体状或模块状,本发明提供了两种技术方案，跟据油罐形状的不同以及施工环境的不同，选择合适的技术方案，对于形状规整，施工条件允许的情况下，我们优先选择将与油罐内表面形状一致的软体3D编织复合体200囊体与油罐内表面粘合，在油罐结构相对复杂的情况下，我们采用片状拼接的方法，以达到相同的效果。
在本发明的技术方案中，所述囊体与所述罐体101内壁形状一致，所述模块状为片体或弧片体，各模块之间通过密封条连接，保证软体3D编织复合体200制作的囊体的密闭性,是实现双层罐改造成功的重要步骤之一。
本发明还提供了双层罐的检测方法，双层储油罐的渗泄漏检测方法主要分为压力/真空检测法和液媒检测法，两种方法均利用双层罐体101之间形成的间隙205空间，在间隙205空间内产生一定的气压或者注入液体。气压可通过压缩气体或抽真空产生；检测液应使用可自然降解，又不和储液反应的液体。然后，使用检测系统检测其气压或液位的变化，判断储罐是否出现渗、泄漏。如果采用液位测试，就把检测探头设置在罐体的底部或者把液体引到地面来进行检测。如果采用气压检测，则需要在205层内充气，长期维持一个相对稳定的气压范围，对气压进行实时检测，如果有泄漏气压就会变化。
本发明的技术方案中还提供软体3D编织复合体200的制造方法，其包括：在三层共挤的流延设备上共设置有三台挤出机，每台挤出机都有一个独立的喂料装置，在三个喂料装置内分别存放有用于制做耐油层202的原料、用于制做阻隔层203的阻隔型聚氨酯和用于制做黏合层204的热塑性弹性体原料。同时 把已经准备好的3D编织层201放卷在流延上准备好。根据加工需要最好对放卷的3D编织层201在遇到熔胶前经过烘烤处理。三层共挤设备上三台挤出机同时挤出耐油层202、阻隔层203和黏合层204的熔胶到设置好的三合一的模腔内汇合，让三股熔融胶体有序地分层次地合为一体，在三合一胶体熔融状态下流到已经放卷好的3D编织层201上，再经过辊轮的挤压、冷却形成了四合一的软体3D编织复合体200。
本发明还提供了操作人员通过储油罐人孔105进入到储油罐内进行操作的方法，步骤包括：
方案一：
选用双组分反应型热固聚氨酯胶。
1、清洁罐体101内表面，将反应性胶粘剂涂敷在罐体101内表面；
2、在所述反应性胶粘剂上粘贴网格布104；
3、在所述网格布104上涂敷所述反应性胶粘剂；
4、在所述反应性胶粘剂上粘结软体3D编织复合体200，在方案一中，所述软体3D编织复合体200包括：3D编织层201、述3D编织层201设置有贯穿层面的间隙205，与涂敷所述反应性胶粘剂的所述网格布104粘结。双组分粘合剂便会在几个小时内自充分反应固化，形成一层坚固的内层，建议修复48小时后装油。
方案二：
选用聚合型增韧环氧胶。
1、清洁罐体101内表面，将反应性胶粘剂涂敷在罐体101内表面；
2、在所述反应性胶粘剂上粘贴网格布104；
3、在所述网格布104上涂敷所述反应性胶粘剂；
4、在所述反应性胶粘剂上粘结软体3D编织复合体200，在方案二中，所述软体3D编织复合体200包括：3D编织层201、耐油层202、阻隔层203和黏合层204，所述3D编织层201设置有贯穿层面的间隙205，将3D编织层201外表面涂敷所述反应性胶粘剂，将涂敷有所述反应性胶粘剂的3D编织层201与涂敷所述反应性胶粘剂的所述网格布104粘结。双组分粘合剂便会在几个小时内自充分反应固化，形成一层坚固的内层，建议修复48小时后装油。
本发明的有益效果在于：本发明所提供的非开挖式双层罐的改造方法可以对埋在地下的单层罐进行改造，使原有的单层罐拥有双层罐的优秀属性，并且所需 要的成本远低于更换双层罐所需要的成本，本发明在3D编织层上的贯穿层面的间隙内可设置油品检漏装置进行实时检测，该方法可以准确及时的显示油罐是否存在油品泄漏的情况，提升了油罐的安全性。
以上内容是结合具体的优选技术方案对本发明所作的进一步详细说明，不能认定本发明的具体实施只局限于这些说明。对于本发明所属技术领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干简单推演或替换，都应当视为属于本发明的保护范围。

Claims (10)

  1. 一种非开挖式双层罐的改造方法，其特征在于：所述非开挖式双层罐的改造方法包括步骤：
    A:将待改造的罐体(101)内表面进行清洁处理；
    B:将清洁后的罐体(101)内表面涂胶；
    C:将网格布(104)浸埋入胶体内；
    D:将软体3D编织复合膜体(200)贴到胶体上，使所述软体3D编织复合体(200)与所述待改造的罐体(101)形成双层罐结构。
  2. 根据权利要求1所述非开挖式双层罐的改造方法，其特征在于：所述非开挖式双层罐的改造方法具体包括步骤：
    A:清洁待改造的罐体(101)内表面；
    B:将陶瓷环氧胶(102)涂敷在所述罐体(101)内表面；
    C:在所述陶瓷环氧胶(102)上涂敷聚合型增韧环氧胶(103)；
    D:在所述聚合型增韧环氧胶(103)上铺设网格布(104)，使所述网格布(104)埋入所述聚合型增韧环氧胶(103)内；
    E:在所述聚合型增韧环氧胶(103)上粘结软体3D编织复合膜体(200)，使所述软体3D编织复合体(200)与所述待改造的罐体(101)形成双层罐结构；
    其中，所述软体3D编织复合体(200)包括：3D编织层(201)、耐油层(202)、阻隔层(203)和黏合层(204)，所述3D编织层(201)设置有贯穿层面的间隙(205)。
  3. 根据权利要求2所述非开挖式双层罐的改造方法，其特征在于：所述步骤B、步骤C和步骤D具体为：
    所述待改造的罐体(101)内表面晾干后将所述陶瓷环氧胶(102)涂敷在所述待改造的罐体(101)内表面，12-24小时后在所述陶瓷环氧胶(102)上涂敷聚合型增韧环氧胶(103)，在所述聚合型增韧环氧胶(103)上铺设网格布(104)，在所述网格布(104)上再涂敷所述聚合型增韧环氧胶(103)，使所述网格布(104)完全浸入所述聚合型增韧环氧胶(103)内。
  4. 根据权利要求3所述非开挖式双层罐的改造方法，其特征在于：
    所述陶瓷环氧胶(102)和聚合型增韧环氧胶(103)为双组分反应型胶，或是反应性硅橡胶胶粘剂、反应性聚氨酯胶粘剂、反应性聚氨酯热熔胶、导电型陶瓷环氧胶、单组分湿气固化型胶粘剂、双组分反应型热固聚氨酯。
  5. 根据权利要求2所述非开挖式双层罐的改造方法，其特征在于：所述的软体3D编织复合体(200)中的所述阻隔层(203)设置在耐油层(202)和黏合层(204)之间，所述3D编织层(201)设置在黏合层(204)的外侧，所述3D编织层(201)与所述聚合型增韧环氧胶(103)粘结。
  6. 根据权利要求2所述非开挖式双层罐的改造方法，其特征在于：
    所述阻隔层(203)为防油品渗漏的聚氨酯，所述聚氨酯为热塑性聚氨酯；
    所述耐油层(202)为热塑性弹性体，所述热塑性弹性体材料为耐油的聚酯弹性体或耐油聚醚型热塑性聚氨酯或导静电的热塑性弹性体材料。
  7. 根据权利要求5所述非开挖式双层罐的改造方法，其特征在于：
    所述黏合层(204)为热塑性弹性体，所述黏合层(204)为聚醚型TPC聚酯弹性体或聚醚型聚氨酯弹性体；
    所述3D编织层(201)的为工业涤纶丝或玻璃纤维。
  8. 根据权利要求2所述非开挖式双层罐的改造方法，其特征在于：所述步骤E中所述的软体3D编织复合体(200)呈囊体状或模块状。
  9. 根据权利要求8所述非开挖式双层罐的改造方法，其特征在于：所述囊体与所述罐体(101)形状一致，所述模块状为片体或弧片体，各模块之间通过密封条连接密封。
  10. 一种非开挖式双层罐检测渗漏方法，其特征在于：所述非开挖式双层罐油品渗漏的检测方法包括：
    将油品测漏装置的检测端置入如权利要求1至9其中之一所述的非开挖式双层罐内的3D编织层(201)上设置的贯穿层面的间隙(205)内进行油品是否泄漏的检测。
PCT/CN2015/098835 2015-10-09 2015-12-25 非开挖式双层罐的改造方法及油品泄漏的检测方法 WO2017092100A1 (zh)

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