CN202144362U

CN202144362U - Buried type double-layer storage tank

Info

Publication number: CN202144362U
Application number: CN201120192198U
Authority: CN
Inventors: 李彩琴
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-06-09
Filing date: 2011-06-09
Publication date: 2012-02-15
Anticipated expiration: 2021-06-09

Abstract

The utility model relates to a buried type double-layer storage tank which sequentially comprises a steel inner shell, a tiny interlayer and a fiber reinforced plastic (FRP) outer shell from the inner shell to the outer shell, wherein the tiny interlayer comprises a winding filamentous adhesive tape and a polyethylene terephthalate (PET) isolating membrane, the tiny interlayer is a hollow layer, the winding filamentous adhesive tape is wound on the outer surface of the steel inner shell, a PET film is wrapped outside the winding filamentous adhesive tape, and the FRP outer shell is wrapped on the outer surface of the PET isolating membrane. The buried type double-layer storage tank also comprises a remote monitoring leakage detection system which is inserted from the top into the bottom of a leakage detection pipe of the storage tank to be communicated with the hollow layer of the tiny interlayer, wherein a detection sensor of the remote monitoring leakage detection system is installed at the bottom of the leakage detection pipe to be communicated with the tiny interlayer. The buried type double-layer storage tank has very strong acid and alkali resistance, and electrolyte resistance, and is not easy to leak due to an FRP layer of the outer shell, thus having incomparable advantages in safety, economy, environmental protection and other aspects compared with common buried type storage tanks.

Description

A kind of buried double-deck storage tank

Technical field

The utility model relates to a kind of container that is used for article or material storage, particularly a kind of buried double-deck storage tank that is used to store chemical solvent, petroleum-type goods.

Background technology

At present; Be applied to the iron storage tanks of the widely used individual layer of buried tank such as chemical industry, printing and dyeing, printing ink, petrol service station; The iron storage tank of individual layer is when storing inflammable and explosive or toxic substance such as chemical solvent, oil; Because there are factors such as physics corrosion and electrolytic corrosion in these dangerization article and toxic substance, it is underground that the iron storage tank of common individual layer is embedded in throughout the year, receives phreatic corrosion and electrolytic corrosion; The iron storage tank of individual layer is in service property (quality) and tangible potential safety hazard is arranged service life, relates to safety, economy, environmental protection.

The utility model content

The technical matters that the utility model will solve is: to the defective and the deficiency of the iron storage tank existence of individual layer of the prior art; A kind of buried double-deck storage tank is proposed; Has very strong acid and alkali-resistance; Anti-point is separated, and is difficult for seepage takes place, and the incomparable advantage of the iron storage tank of individual layer is being arranged aspect safety, economy, the environmental protection.

The utility model solves the technical scheme that its technical matters adopted: a kind of buried double-deck storage tank; From inside to outside comprise steel inner casing, small interlayer and FRP shell successively; Small interlayer comprises thread adhesive tape of winding and PET barrier film; Twine the outside face that thread adhesive tape is wound in the steel inner casing, the PET barrier film is wrapped in the outside of twining thread adhesive tape, and the FRP shell is coated on the outside face of PET barrier film.

PET is high polymers, is called for short polyethylene terephthalate; The good mechanical performance is arranged, oil resistant, anti-fat, anti-diluted acid, diluted alkaline, anti-most of solvents; Has good high-and low-temperature resistance performance; Gas and vapor permeability are low, existing good choke, water, oil and peculiar smell performance, but shielding of ultraviolet.FRP, formal name used at school be glass fiber reinforced plastic, and it is as reinforcing material with fibrous glass and goods thereof; Make a kind of composite material of basis material with synthetic resin, FRP is good anticorrosive material, and acid, alkali, salt and multiple oils and the solvent of atmosphere, water and general concentration all had resistivity preferably; Also be good insulating material simultaneously; Thermal conductivity is low, under instantaneous extraordinary high temperature situation, is desirable thermal protection and ablation resistant material.

Described buried double-deck storage tank also comprises the remote monitor and control seepage detection system; The remote monitor and control seepage detection system inserts the leak detection tube bottom and is connected with small interlayer from storage tank leak detection tube top, the detection inductor of remote monitor and control seepage detection system is installed on the leak detection tube bottom and communicates with small interlayer.

The thread adhesive tape of said winding is the fibrous glass single-coated foam.

Said PET barrier film is the PET film.

The outside face of said steel inner casing has level anticorrosive paint layer peculiar to vessel, and the thread adhesive tape of said winding is wound in level anticorrosive paint layer outside face peculiar to vessel for 360 °.

Thickness >=the 3.5mm of described FRP shell.

Have hollow layer between said small interlayer and the FRP shell, described hollow layer thickness is 0.1～0.2mm.

The beneficial effect of the utility model is: the buried double-deck storage tank that the utility model relates to; Comprise steel inner casing, small interlayer and FRP shell from inner casing successively to shell; Buried double-deck storage tank with unique texture; Even steel inner casing generation seepage; The combustible products such as chemical solvent, oil or the toxic substance that also can guarantee seepage storage in the storage tank only flow in small interlayer, can not leak into the external boundary of storage tank and can not pollute earthing water or soil and jeopardize environment, have improved the safety factor of environmental protection.The FRP shell is to say fibrous glass 360 ° of outer field spray mo(u)lding methods of PET barrier film that are sprayed on the outside face of small interlayer equably by the resin automatic coating machine, can't form small interlayer for avoiding it directly to be coated in the thread adhesive tape of winding.Because the FRP shell has very strong resistance to acids and bases, anti-electrolyte; So should the bilayer storage tank as buried tank; Be not vulnerable to earthing water and saltings, coastland yet and produce acid and alkali corrosion and electrolytic corrosion, improved buried double-ply service property (quality) and prolonged service life.

This buried double-deck storage tank also has been equipped with the remote monitor and control seepage detection system simultaneously; Can carry out 24 hours complete monitorings to this buried double-deck storage tank; Report to the police in case the inner or outside seepage that produces, the inductor of remote monitor and control seepage detection system can be in small interlayer produce during liquid level >=24mm, guarantee user's very first time withdraw from use and in time repair; Fundamentally stopped inflammable and explosive or the extraneous possibility of toxic substance outflow, protected earthing water and soil potential safety hazard timely.

Description of drawings

Below in conjunction with accompanying drawing the utility model is further specified.

Fig. 1 is the structural representation of the utility model;

Wherein: the 1.FRP shell, 2. steel shell, 3. small interlayer, 4. manhole, 5. leak detection tube, 6. the remote monitor and control seepage detection system 7. detects inductor, and 9. liquid guide flow strengthens mouthful, the 12.FRP end socket.

The specific embodiment

Combine accompanying drawing that the utility model is further described now.

As shown in Figure 1, a kind of buried double-deck storage tank from inside to outside comprises steel inner casing 2 successively, twines thread adhesive tape, PET barrier film and FRP shell 1.Wherein, Twine thread adhesive tape and be 360 ° of tank body outside faces that are wound in steel inner casing 2, the PET barrier film is wrapped in the outside face that twines thread adhesive tape, twines thread adhesive tape and PET barrier film and constitutes a small interlayer 3; The outside face of PET barrier film has FRP shell 1; This buried double-deck tank top is provided with the leak detection tube interface, and the detection inductor 7 of remote monitor and control seepage detection system 6 is installed on leak detection tube 5 bottoms and communicates with small interlayer 3, and leak detection tube 5 bottoms have liquid guide flow and strengthen mouth 9.

Twining thread adhesive tape is the fibrous glass single-coated foam.The PET barrier film is the PET film.The outside face of steel inner casing has level anticorrosive paint layer peculiar to vessel, and the thread adhesive tape of said winding is wound in level anticorrosive paint layer outside face peculiar to vessel for 360 °.Thickness >=the 3.5mm of FRP shell.Have hollow layer between small interlayer and the FRP shell, described hollow layer thickness is 0.1～0.2mm.

The production technology of this buried double-deck storage tank is: at first, steel inner casing 2 adopts the production of Q235B carbon steel, satisfies the JB/T4735 standard and makes, and in the outside face rust cleaning of steel inner casing 2, has strengthened service life.Use thread adhesive tape of winding and PET barrier film to create a small interlayer 3 jointly; Be used for 360 ° of FRP automatic coating machines and uniformly spray barrier film, injection molding successively at PET.Form FRP shell 1, FRP shell 1 thickness >=3.5mm, FRP shell 1 carry out 1.5 ten thousand volts of high-voltage spark experiments; The ultrasonic thickness gauge check, small interlayer space is 0.1～0.2mm, is equipped with inspection then; Compression indicator is connected on leak detection tube 5 tops, and small interlayer 3 is pressurizeed and negative pressure experiment, keeps stablizing not having obviously in 24 hours revealing, thereby guarantees the air-tightness that steel inner casing 2 and FRP shell 1 are complete; Having buried double-deck storage tank leak detection tube 5 tops to be fit into remote monitor and control seepage detection system 6 is placed into liquid guide flow and strengthens mouthful 9 bottoms and its seepage inductor 7 is linked to each other with small interlayer lead to remote monitor and control seepage detection system 6 warning functions.

Claims

1. buried double-deck storage tank; It is characterized in that: from inside to outside comprise steel inner casing, small interlayer and FRP shell successively; Small interlayer comprises thread adhesive tape of winding and PET barrier film; Twine the outside face that thread adhesive tape is wound in the steel inner casing, the PET barrier film is wrapped in the outside of twining thread adhesive tape, and the FRP shell is coated on the outside face of PET barrier film.

2. a kind of buried double-deck storage tank according to claim 1; It is characterized in that: described buried double-deck storage tank also comprises the remote monitor and control seepage detection system; The remote monitor and control seepage detection system inserts the leak detection tube bottom and is connected with small interlayer from storage tank leak detection tube top, the detection inductor of remote monitor and control seepage detection system is installed on the leak detection tube bottom and communicates with small interlayer.

3. a kind of buried double-deck storage tank according to claim 1, it is characterized in that: the thread adhesive tape of said winding is the fibrous glass single-coated foam.

4. a kind of buried double-deck storage tank according to claim 1, it is characterized in that: said PET barrier film is the PET film.

5. a kind of buried double-deck storage tank according to claim 1 is characterized in that: the outside face of said steel inner casing has level anticorrosive paint layer peculiar to vessel, and the thread adhesive tape of said winding is wound in level anticorrosive paint layer outside face peculiar to vessel for 360 °.

6. according to the described a kind of buried double-deck storage tank of claim 1 to 5, it is characterized in that: the thickness >=3.5mm of described FRP shell.

7. a kind of buried double-deck storage tank according to claim 6 is characterized in that: have hollow layer between said small interlayer and the FRP shell, described hollow layer thickness is 0.1～0.2mm.