Why should the Y filter of the steam pipe be worn flat

The condensate in the steam pipe flows at high speed under the steam under the steam to hit the obstruction to form water hammer, so the steam is flattened to prevent the condensate from hitting the cross-section to form water hammer. The hot water you are talking about should be condensate, and there is secondary steam in the condensate pipe, which is also to prevent the occurrence of water hammer and form a slope to facilitate drainage.

Here are some of the well-known brands recognized in the Y-type filter industry that are widely recognized and have a great reputation. While rankings may vary depending on time and market conditions, the following brands are generally considered to be among the top brands in the valve industry:

The following influential first-line brands of water system valves and industrial valves can be used as a reference, but for reference only: Suzhou Neway Valve, Shanghai Guanlong Valve, Shanghai Qizhong Valve, Sanhua, Su Yan, Shentong, Su Valve, Nanfang, Jiang.

First, the word Yao. The above manufacturers are only estimates and references, and the specific situation may vary or fluctuate at any time due to changes in a series of factors such as changes in the market, the size of the competition pattern, and the stability of product quality. As an indispensable key device in industrial production and civil facilities, the quality and reputation of the valve brand directly affect the satisfaction and trust of users.

These brands are known in the valve industry for their innovative technology, high-quality products and reliability. It is important to note that the market and industry are evolving rapidly, and different rankings may vary depending on time and region. For the most up-to-date ranking information, it is recommended to refer to industry reports, professional organizations or market research data for more detailed and accurate information.

The specific content of the "four major pipelines":

1. Main water supply pipeline.

2. Main steam pipeline.

3. Reheat the steam pipeline of the hot section.

4. Steam pipeline in the reheating and cooling section.

The "four major pipelines" of steam boiler are the pipes within the scope of the boiler defined by the national special equipment safety technical specification TSG G0001-2012 "Boiler Safety Technical Supervision Regulations", and belong to the parts of the steam boiler.

The four major pipes of the boiler are: economizer, water wall, superheater, and reheater pipe.

Economizer (English name economizer) is the heating surface of the boiler feed water heated into saturated water under drum pressure in the flue at the tail of the boiler, because it absorbs the heat of low-temperature flue gas, reduces the exhaust gas temperature of the flue gas, saves energy and improves efficiency, so it is called economizer.

The water wall is the main heating part of the boiler, which consists of several rows of steel tubes, which are distributed around the furnace chamber of the boiler. Its interior is flowing water or steam, and the outside receives heat from the flame in the furnace chamber of the boiler.

A superheater is a heating surface in a boiler that heats saturated water vapor at a certain pressure into superheated water vapor at a corresponding pressure.

The reheater is essentially a kind of steam superheater that reheats the low-pressure steam that has been worked and reaches a certain temperature, and the role of the reheater further improves the thermal efficiency of the power plant circulation, and controls the steam temperature of the final blade of the steam turbine within the allowable range.

Main steam (including high-pressure bypass) pipelines, reheat hot section (including low-pressure bypass) pipelines, reheat and cold section pipelines, and high-pressure water supply pipelines.

When the steam temperature exceeds the rated value during operation, it is called overtemperature. When the wall temperature of the heating surface pipe or steam pipe exceeds the maximum allowable temperature of the steel, it is called overheating.

All kinds of steels have a defined service temperature range, or a maximum allowable service temperature. Within the permissible operating temperature range, it can be safely operated according to its service life.

Overtemperature in operation. Sometimes it causes the tube wall to overheat, sometimes it doesn't. If the rated operating temperature is much lower than the maximum allowable temperature of the steel, even if there is an overtemperature, it is not necessarily overheated.

For example, the maximum allowable use temperature of 12Cr1MOV steel is 580, the rated temperature of steam is 540, and the point is 550 in operation, which is customary to belong to overtemperature, but it is not overheated for the main steam pipeline.

When the actual wall temperature exceeds the maximum service temperature of the steel, the mechanical properties and metallographic structure of the metal will change, the creep speed will increase, and finally lead to the rupture of the pipeline. To this end, the main steam pipe, superheater and reheater pipe and the corresponding steam guide pipe should be recorded in operation, and the overtemperature time and degree of overtemperature should be counted, so as to analyze the life of the pipeline, strengthen the supervision of the pipeline, and prevent overheating and sudden damage.

Suspended droplets in water and steam in boiler pipes can reduce equipment productivity and product quality, and can also lead to equipment damage. It should be excluded as much as possible.

To remove the water in the boiler pipes, the droplets suspended in the steam must be separated, and in order to separate these suspended droplets, a separator needs to be installed on the steam pipes.

In order to ensure the effective removal of the separated condensate and avoid steam loss, a trap should be installed at the condensate outlet of the separator. The most suitable trap is a float trap, which allows for rapid removal of condensate. Some separators have built-in traps.

If there is water, put it quickly, and there must be a trap door at the lowest part of the pipe.

Drain the condensate at the lowest point of the pipe or sub-cylinder.

The separator, continuous drainage, only drainage, no exhaust, warranty for more than ten years, state-owned enterprises and well-known large enterprises have been in use.

The material of the boiler feed pipe: basically g, 20g is slightly stronger than 20, and 20g is the steel used for the boiler. Because the feed water temperature is below 300, the pressure bearing capacity can be increased by increasing the wall thickness.

All kinds of pipes should be cleaned before use, and some pipes should also be cleaned regularly. In order to facilitate cleaning, a filter or purge cleaning hole is provided on the pipe. In pipelines that transport oil and gas over long distances, cleaners must be used to regularly remove the accumulated dirt in the pipes, and special devices for sending and receiving cleaners must be installed for this purpose.

Hello, in general, consider doing insulation to reduce heat loss, such as steam, hot water pipes, flues, furnace bodies, hot water tanks, etc.; There are also anti-scald insulation, such as chimneys, etc.; Of course, in cold regions, it is also necessary to consider antifreeze insulation, such as tap water or softened water pipes. Thermal pipelines need to prevent excessive heat loss, and ultra-fine glass is generally used for thermal insulation, of course, rock wool, silicate, expanded perlite, etc., depending on the investment level and the requirements of the builder.

Boiler feed water, steam, compressed air pipelines need to identify the flow direction of the arrows: steam, compressed air pipelines.

Pipe identification (pipe color ring) three elements:

1) identification color, (2) medium name, (3) flow direction All pipeline identification must indicate the identification color, medium name and flow direction, which is the basic three elements of pipeline identification. Some pipelines must also indicate pressure, flow rate, temperature, etc., hazardous chemical pipelines need to use special hazardous chemical color rings, and fire pipelines should also indicate special fire protection.

The pipe flow direction arrow is the most direct visual annotation method for the flow direction of the medium in the pipe. The flow arrow is made up of a base color and an arrowhead, which is pasted around the pipe. The background color represents the hazardous properties of the medium in the pipeline, and 8 colors are specified in GB7231-2003 for the color of the arrow in the pipeline flow direction.

They are: bright red, bright green, medium yellow, purple, light gray, brown, light blue, black. Among them, the water that is not harmful to the human body is bright green, the high temperature is scalded to the human body is red, the corrosive medium is purple, the flammable liquid is brown, the toxic and harmful gas is medium yellow, the air is light gray, the oxygen is light blue, and other liquids are black.

For example, the petroleum industry implements the "QSY134-2005 Petrochemical Pipeline Safety Symbol Color Management Code", and the power industry implements the "Specification for the Configuration of Production Safety Facilities for Power Generation Enterprises" and so on.

Serial number, media name, coloring, pipe lettering.

Name Lettering color.

1 Softened water green Softened water white.

2 Low-pressure steam, red, low-pressure steam, white.

3 Medium pressure steam red Central Asian steam white.

4 High-pressure steam, red, high-pressure steam, white.

5 Superheated Steam, Dark Red, Superheated Steam, White.

6 Steam return water condensate Dark red Steam condensate (back) Green 7 Steam condensate for exhaust gas Dark red Steam condensate (waste) Black 8 Air (compressed air) Navy Blue Compressed air White.

Steam and compressed air pipes.