Leak proof gas drain for condensate water treatment

Introduction:

Ensuring the purity and quality of gas is crucial in the system of gas transportation and use. Gas often contains moisture, impurities, etc. If not effectively treated, it can cause a series of problems such as corrosion of subsequent equipment and affect combustion efficiency. Gas drainage filters have emerged in this context, playing a crucial role in the gas system.

Working principle of gas drainage filter

1. Principle of Water Removal

The moisture carried in coal gas is mainly removed through the principles of gravity settling, centrifugal force separation, and adsorption of filter media when passing through the filter. Under the special structural design inside the filter, when gas passes through, the moisture will gradually settle to the collection area at the bottom of the filter due to its own gravity. Meanwhile, during the rotational flow of the airflow, centrifugal force also causes water to move outward and separate. In addition, filter media such as filter screens and filter cartridges have an adsorption effect on small water droplets, further improving the efficiency of water removal.

2.Principle of impurity removal

For impurities in gas, such as dust, rust, and other solid particles, filters mainly rely on the interception effect of filter elements. Filter elements typically have a specific pore size, and when gas passes through, impurity particles larger than the pore size are intercepted on the surface of the filter element, thereby achieving the separation of impurities from gas. In some advanced gas drainage filters, a multi-layer filtration structure may also be used to gradually remove impurities of different sizes from coarse filtration to fine filtration, ensuring that the filtered gas reaches a high degree of purity.

Structural composition of gas drainage filter

1.Shell

Material selection

Common shell materials include carbon steel, stainless steel, etc. Carbon steel has a relatively low cost, but may require anti-corrosion treatment such as painting, galvanizing, etc. in humid and corrosive environments. Stainless steel has good corrosion resistance and is suitable for use in harsh environments, especially when gas contains corrosive components.

Structural Design

The shell is generally designed as a cylindrical or square shape, which is conducive to withstanding internal pressure and is more convenient in manufacturing and installation. The shell is equipped with inlet and outlet pipe interfaces for connecting gas transmission pipelines. The location and connection method of imports and exports need to be designed according to the layout and installation requirements of the gas system to ensure that the gas can smoothly enter and exit the filter.

2. Filter element

Filter mesh

A filter screen is a common filtering element, which can be made of metal (such as stainless steel wire) or synthetic fibers. The metal filter has high strength and high temperature resistance, making it suitable for high-temperature gas environments. The pore size of the filter screen is selected according to the size of the impurity particles that need to be removed, generally ranging from tens of micrometers to hundreds of micrometers.

filter element

There are many types of filter cartridges, such as folding filter cartridges, winding filter cartridges, etc. Folding filter cartridges have a large filtration area and can achieve efficient filtration in a smaller volume. The wrapped filter element is formed by wrapping the filter material around the central tube, which has good pressure resistance performance. The filtration accuracy of the filter element can reach the micron or even nanometer level, effectively removing tiny impurities and moisture.

3. Water collection device

Collecting tank

The collection tank is usually located at the bottom of the filter and is used to collect the water separated from the gas. The design of the water collection tank should consider the convenience of drainage, usually with a certain slope to allow water to flow smoothly towards the drainage outlet.

Drainage valve

The drainage valve is installed at the drainage outlet of the collection tank to regularly discharge the collected water. There are two types of drain valves: manual drain valves and automatic drain valves. Manual drainage valves require operators to regularly open them for drainage operations; The automatic drainage valve can automatically drain according to the set water level or time, improving the convenience and automation of operation.

4. Internal support structure

The internal support structure is mainly used to fix the filter element, ensuring that it will not undergo displacement or deformation during operation. The design of the supporting structure should consider the convenience of installing and replacing the filter elements, while ensuring sufficient strength and stability to withstand the pressure of gas and the weight of the filter elements.

The main types of gas drainage filters:

1.Mechanical separation filter

This type of filter mainly relies on mechanical structure to separate moisture and impurities. For example, in a cyclone filter designed based on the principle of cyclone separation, coal gas rotates at high speed along the tangential direction after entering the filter, generating strong centrifugal force that causes moisture and impurities to be thrown towards the wall of the filter and then fall down along the wall to the water collection device.

2. Filter cartridge filter

A filter with a filter element as the main filtering component. According to the different materials and structures of the filter element, different precision filtration can be achieved. The filter element can be replaced regularly to ensure the filtering effect of the filter.

3.Composite filter

A filter that integrates multiple filtering principles and structures. For example, combining mechanical separation with filter cartridge filtration, first removing most of the moisture and larger impurities through mechanical separation, and then performing fine filtration through the filter cartridge, can fully leverage the advantages of different filtration methods, improve filtration efficiency and quality.

Application of Gas Drainage Filters in Industry:

1, Steel industry

In the process of steel production, blast furnace gas, coke oven gas, etc. are important energy media. These gases contain a large amount of moisture and impurities, and if used directly without filtration, they can cause serious damage to equipment such as hot air stoves and gas turbines. Gas drainage filters can effectively remove moisture and impurities from gas, ensure the normal operation of steel production equipment, and improve production efficiency and product quality.

2,Chemical industry

In chemical production, many processes require the use of coal gas as fuel or raw material. For example, synthetic ammonia, methanol production, etc. In these processes, the quality of gas directly affects the efficiency of chemical reaction and product quality. Gas drainage filters can provide clean gas for chemical production, reduce the toxic effects of impurities on catalysts, extend the service life of catalysts, and reduce production costs.

3,Gas power generation industry

In gas power plants, gas turbines have very high requirements for the quality of gas. The moisture and impurities in gas can cause corrosion and wear of gas turbine blades, reducing the efficiency and reliability of gas turbines. Gas drainage filters can ensure that the gas entering the gas turbine meets quality requirements, improving the efficiency and safety of gas power generation

FAQ:
1. Question: Are you a trading company or a manufacturer?
A:We are a professional manufacturer of all kinds of filter cartridges, housings, and filtration systems. We provide you with the total filtration solutions with our years of industry experience.
2. Question: Can we undertake EPC projects
A: Of course, we are a mature company in all aspects, and our aim is to provide one-stop services without any intermediate links.
3. Q: Can you make customized products?
A: Yes, of course, if you can provide us with detailed specifications or drawings. Our mission is to make customers ideas on the products and provide the customer satisfied solutions.
4. Question: Can you provide accessories for the corresponding equipment?
A: Yes, we have complete equipment and spare parts
5. Q: Can I use our own designed package?
A: Yes, size, color, logo, and packaging style all can be customized.
6.Q: What's your MOQ?
A: Normally, equipment 1 set. please feel free to contact us so that we can make some shipping recommendations for you to save the cost based on the quantity you need.
7.Q: I am a small business owner, Can I buy from you?
A: Yes, you are warmly welcomed. To grow with our customers is our goal. We would like to grow with you together.
8. Q: What is your general lead time?
A: For equipment normally 25-30 working days .
9. Question: How should I make the payment?
A: A: We strongly recommend T/T, L/C are acceptable.
10.Question: What services can you provide if there are after-sales problems with the equipment
A: Our dedicated personnel will solve all after-sales problems you encounter 24 hours a day

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