Common Leakage Of FRP Storage Tanks And Repair Methods

 

 

This article mainly discusses the common leakage phenomenon of FRP storage tanks and analyzes its causes. Eventually, we hope to find out the repair methods.

 

Bottom plate leakage

In general, the visual manifestation of bottom plate leakage is the corrosion phenomenon on the ground. At this time, we should first check the outside of the tank to find the leakage point and consider whether the damage of the tank is caused by the bump during the lifting process; secondly, we should consider whether the leakage is caused by the air holes inside the bottom plate due to the unqualified manufacturing process.

Solution: Open a manhole side window of about one person's shoulder width (diameter φ400) on the side of the tank, enter the tank to find the leak point, and reinforce the leak point and the entire bottom of the tank, the inner wall of the tank bottom upward within 1 meter of the all-around cladding for repair. After completion, fill with water and test for 48 hours without leakage to solve.

 

Flange Leakage

Flange leakage is generally caused mostly by defects in the production of the flange, as shown in Figure 3, the flange was found to be leaking drop by drop to the lower exterior.

Solution: The leaking flange will be cut and replaced, bearing in mind that when replacing the internal and external flange body and tank are required to wrap, and internal wrapping is completed to leave the tank inside the mouth to avoid blocking the flow of liquid.

 

Side window manhole bolt drip

If the tank comes with a side manhole, after finding the side manhole bolt dripping, you need to consider two problems: first, whether the bolt is not tightened or the gasket is damaged; second, whether the manhole flange has cracks.

Solution: Replace the gasket for the tightened bolt. If the problem is not found to be solved, remove the blind plate and find that the flange is cracked, the flange should be cut down and re-wrapped, and replaced.

 

 

In order to prevent the phenomenon of leakage, should do a good job of daily maintenance.

Maintenance of FRP storage tank

 

1. To prevent the work apparatus from hitting the tank wall. The use of ladders, metal parts equals the contact part of the tank wall to add soft pads to protect the inner wall from being scratched and bruised.

2. Enter the FRP acid and alkali tank maintenance, should first close all feed valves, empty and clean the tank. After testing to confirm that there is no toxic gas in the tank, no lack of oxygen to enter the tank. Enter the tank should wear soft-soled shoes, strap on the safety belt, and the other end of the safety belt tied to the top of the tank. Pay attention to the ventilation inside the tank. Into the tank operation, there must be personnel outside the tank under supervision.

3. Outdoor use of glass fiber reinforced plastic storage tanks will be used for many years due to aging of the outer surface layer, resulting in resin layer peeling or fiber exposure. It is recommended that every two or three years the outer surface of the tank should be painted or resin to prevent aging and extend service life.

4. FRP tank maintenance can not be loaded at will on the top of the tank but is also not allowed to apply external force on the receiver.

5. FRP tanks outside climbing ladders, cages, guardrails before climbing should be carefully checked whether safe and reliable, there is an abnormal situation is strictly prohibited to climb the use.

 

We are an FRP storage tank supplier, please feel free to contact us if you need them.

Do You Know The Differences Between GRP And FRP?

 

 

The term FRP is often used interchangeably when referring to GRP, a broader generic term more commonly used for engineering materials used in a wide range of industrial applications. The term FRP is often used interchangeably when referring to GRP.

 

What is GRP?

 

GRP stands for Glass Reinforced Plastics. It is also known as glass fiber, composite plastic, or FRP. it is strong, extremely light, and versatile. the behavior of GRP is different from that of traditional thermoplastics used in everyday products. This means that it has properties that can be used in a range of applications in many industries.

 

What is FRP?

 

FRP stands for Fiber Reinforced Polymer. FRP is a composite material formed from a polymer matrix reinforced with fibers. While the fibers used are usually glass fibers, such as GRP, other fibers such as carbon, aramid, or basalt are also used.

 

What is Fiber Reinforced Plastics used for?

 

GRP is used in a range of different applications. In many industries, products made partially or completely from GRP are useful. For example:

1. Non-slip protection for refurbishing wet and dry floors

2. Handrails

3. Sports equipment such as kayaks

4. Electronic enclosures

5. Safety grating for industrial and public areas

6. Helicopter rotor blades and wind turbine blades

7. Water pipes or drain covers

 

 

What are the properties of Fiber Reinforced Plastics?

 

GRP has many valuable properties that make it very useful in industries around the world. These properties include

Thermal insulation

FRP has a low thermal conductivity of 1.25 to 1.67 kJ/(mhK) at room temperature, 1/100 to 1/1000 that of metal, making it an excellent thermal insulation material. In the case of transient ultra-high temperature, it is an ideal material for thermal protection and ablation resistance and can protect the spacecraft to withstand the high-speed airflow above 2000℃.

High strength to weight ratio

The relative density is between 1.5~2.0, only 1/4~1/5 of carbon steel, but the tensile strength is close to or even exceeds that of carbon steel, and the specific strength can be compared with that of advanced alloy steel.

Corrosion resistance

FRP is a good corrosion-resistant material, with good resistance to the atmosphere, water, and general concentration of acids, alkalis, salts, as well as a variety of oils and solvents. It has been applied to all aspects of chemical corrosion resistance and is replacing carbon steel, stainless steel, wood, non-ferrous metals, etc.

Good electrical properties

It is an excellent insulating material, used to make insulators. Good dielectric properties can still be protected under high frequency. Good microwave permeability has been widely used in radar radome. Good heat and sound insulation effect.

Easy to mold

① The molding process can be flexibly selected according to the shape, technical requirements, usage, and quantity of the product.

② The process is simple and can be molded in one go, with outstanding economic effects, especially for products with complex shapes and small quantities that are not easy to mold, highlighting its process superiority.

 

What are the production methods of Fiber Reinforced Plastics?

 

Basically, there are two major categories, namely wet contact molding and dry pressurized molding. If we divide by process characteristics, there are hand paste molding, RTM method, lamination molding, molding, extrusion and pulling method, winding molding, etc. Hand- glued molding includes a bag-pressing method, hand-gluing method, a spraying method, wet-gluing low-pressure method, and mold-free hand-gluing method.

 

We are an FRP pipes manufacturer, please feel free to contact us if you need them.

FRP Biogas Desulfurization Scrubber

FRP Biogas Desulfurization Scrubber   FRP scrubbers tower    FRP Desulfurization Tower

 

Diameter: DN1600*20000

Medium: Biogas desulfurization and purification

The main body of the glass fiber reinforced plastic biogas desulfurization tower includes a washing tower, a hydrogen sulfide sampling and monitoring system, a lye configuration tank, a water supply and softening device, a liquid level control system, supports and connectors. The desulfurization system realizes fully automatic operation by monitoring the hydrogen sulfide concentration of the outgoing gas and the pH value. During operation, the biogas passes through the desulfurization tower from bottom to top, and the Na2CO3 solution (or NaOH solution) is sprayed from the top down to make the H2S gas and the lye have a sufficient chemical reaction in the packing area to achieve the effect of purifying the biogas.

 

Yongchang provides customers with the following products as well as their installation and after-sales service:1. FRP storage tanks, specifically designed for producing FRP containers with a diameter of 25000mm (5000 cubic meters) or less.

2. Pipelines, including FRP process pipelines and FRP sand pipelines.

3. FRP and plastic composite products, including FPR\PP, FPR\PVC, FPR\CPVC, FPR\PVDF, etc.

4. FRP desulfurization devices, i.e. humidification towers, desulfurization towers, slurry tanks, thickeners, oxidation tanks, venturi tubes, flues, chimneys, spray pipelines, biogas purification and treatment facilities, etc.

5.Transfer of production technology of a complete set of microcomputer controlled filament winding equipment, and the relevant guidance and training.We are based on integrity, cherishing our reputation, delivering high-quality products, and providing the best after-sales service as a return to customers. We sincerely welcome customers from all walks of life to visit our company and give valuable advice.

https://www.yongchangfrp.com/product-frp-biogas-desulfurization-scrubber.html

 

 

 

 

 

Glass Fiber Reinforced Plastic Brewing Food Tank FRP Brewing Food Tank

Glass Fiber Reinforced Plastic Brewing Food Tank     FRP Brewing Food Tank    acid storage tank manufacturer

 

Specification: DN3600*7000

Medium: vinegar, soy sauce, etc.

Yongchang FRP fermentation tank is suitable for low-salt solid-state fermentation, high-salt dilute state fermentation, solid-dilute fermentation and other soy sauce and vinegar fermentation stages, as well as the holding and precipitation of soy sauce and vinegar. The inside of the tank is smooth and easy to clean. The internal fittings are designed All consider the design of no sanitary dead corners. For the fermentation tanks with light requirements, the top of the fermentation tank is treated with light transmission.

 

Advantages of FRP storage tank:

(1) High strength

The density is between 1.5~2.0, only 1/4~1/5 of carbon steel, but the tensile strength is close to or even higher than that of carbon steel

(2) Good corrosion resistance

(3) Good electrical performance

(4) Safe for environment

(5) Light Weight – easier handling

(6) Smooth Inner Surface – lower sludge formation, lower cleaning costs

It is an excellent insulating material used to make insulators.

 

Fiberglass storage tank application

Media that can be stored: inorganic acids, organic acids, bases and hydroxides, elements, gases, and other inorganic compounds, alcohols, aldehydes, ketones, ethers, esters, hydrocarbons and petroleum products, halogen-containing organic compounds and other organic compounds, etc. medium. 

 

https://www.yongchangfrp.com/product-glass-fiber-reinforced-plastic.html