详情描述
Clean various heat exchangers, condensers, industrial pipelines, boilers, and steam power plant condensers. Glan Chemical Co., Ltd. offers guaranteed cooperation.
Jining Green Chemical Technology Co., Ltd. (简称 Jining Green Cleaning Co.) was established in 2010 and is a professional company specializing in the cleaning of various industrial heat exchange equipment. The company boasts comprehensive business philosophy and the capability to develop industrial cleaning technologies. We undertake cleaning services for industrial, private enterprise, and corporate chemical equipment, power plant equipment, condensers, boilers, and boiler air preheaters; as well as air conditioning and heat exchange equipment cleaning. We also handle the cleaning and descaling of refrigeration and heating equipment.
Jining Grean Cleaning Co. has dozens of cleaning machines ranging from 10mpa to 250mpa, and over a dozen chemical cleaning pump stations. Our main services are provided to power plants, chemical factories, oil refineries, food processing plants, corporate entities, heating equipment, and more. The company also offers long-term industrial heat exchanger cleaning and design solutions to industry clients.
Our company has newly acquired domestic cleaning machines and imported cleaning equipment. We have hired experienced technical specialists in the cleaning industry, which has standardized and normalized the cleaning of heat exchange equipment.
Chemical cleaning scale removal process:
Recirculating Closed Loop Cleaning
Recirculating cleaning utilizes two existing parallel deslagging pipelines to form a loop, creating a recirculation system with the cleaning pump station. A certain concentration of acidic solution is added, which circulates through the sludge water pipelines for cleaning. As the acid washing reaches a certain level, the acidic solution is continuously replenished. For short-distance single sludge water pipelines, if conditions permit, a temporary pipeline can be laid to form a recirculation loop for cleaning. This process must be carried out while the system is shut down, and it is complex and costly.
Open road cleaning
No two gray pipes can form a loop during cleaning; only a single gray pipe can be used for open circuit cleaning. The method involves connecting one end of the gray pipe to the cleaning unit, continuously preparing a certain concentration of cleaning solution in the mixing tank, and then injecting it into the gray pipe continuously or intermittently. This process requires adding cleaning equipment during shutdown, which is costly.
Continuous Operation Cleaning
The process involves continuously injecting a specific amount of acidic fluid while also introducing a certain quantity of cleaning corrosion inhibitor and pipeline descaling agent into the ash conveying pipes, performing an open circuit cleaning. The primary role of the cleaning additive is to promote the reaction between the acidic fluid and ash scale at a certain concentration and flow rate, while also enhancing its solubility in water, reducing air blockage, and ensuring the quality of ash pipe cleaning.
The procedure is as follows: Before cleaning, first estimate the required acid amount based on the total scale in the pipeline. Then, calculate the acid addition rate and the flow rate of the sludge conveying pipeline by considering the flow rate of the gray water and the acidity. During the cleaning process, take a sample at the sampling point at the front of the gray pipe every 30 minutes to test the acidity and strictly control it by adjusting the acid flow rate. In the later stage of cleaning, take a sample at the end of the gray pipe every 15 minutes to test the pH value. When the pH value reaches a certain level and remains unchanged for 30 minutes, the cleaning can be deemed complete.
2. High-pressure water jet cleaning machinery
High-pressure water jet cleaning offers advantages such as high efficiency, low cost, non-damaging to workpieces, environmental friendliness, ease of operation, and safety.
Advantages of high-pressure water technology include:
(1) Excellent Cleaning Quality - The high-pressure water jet cleaning of pipeline and heat exchanger bores can thoroughly remove scale and obstructions from inside the pipes, revealing the metal substrate. The high-pressure water jet, with its immense energy and supersonic movement, is fully capable of destroying hard scale and obstructions without causing any damage to the metal.
High-pressure water cleaning will not damage the base material to be cleaned, as the pressure is less than the compressive strength grade of the metal.
(2) Fast Cleaning Speed: Due to the combined action of water jet washing, splitting, shearing, and grinding, scaling can be quickly broken and removed, which is several to ten times faster than traditional chemical methods, sandblasting and shot peening techniques, simple mechanical, and manual cleaning methods.
Components cleaned with high-pressure water jetting do not require secondary cleaning; however, after chemical cleaning, the surface chemical must be rinsed off with clear water.
(3) No Environmental Pollution: Since high-pressure water jet cleaning uses pure water as the medium, it does not generate a large amount of dust like sandblasting, shot blasting, or simple mechanical cleaning, which can pollute the atmosphere and harm health. It also does not produce a large volume of waste liquid like some chemical cleaning methods, which can contaminate rivers, soil, and water quality. The water jet cleaning with pure water as the medium is odorless, tasteless, and non-toxic. After atomization, it can also reduce the dust concentration in the work area, lowering atmospheric dust from 80mg/m³ with other methods to below the national safety standards, thus causing no pollution.
Pipe Scale
(1) Classified by chemical composition, they can be categorized into carbonate scale, sulfate scale, silicate scale, and mixed scale, etc. The main components of carbonate scale are calcium carbonate and magnesium carbonate; the main components of sulfate scale and silicate scale are calcium sulfate and silicate compounds, respectively.
(2) Classified by physical properties, there are two types: scale that is firmly adhered to the pot shell and tube walls, and sediment that is loosely textured and easily detachable.
Scale is primarily formed due to the salts containing calcium and magnesium in the boiler feedwater that precipitate and adhere to the metal surface upon heating. The thermal conductivity of scale is very low, approximately 2 to 5 times that of ordinary steel. Scale formation on the boiler heating surface significantly worsens the heat transfer efficiency, affecting the boiler's performance; it can easily cause metal materials to burn out due to localized overheating, even leading to pipe explosion accidents; it also accelerates galvanic corrosion, causing pipeline scale corrosion and speeding up the damage to the heating surface. Once scale forms, it should be promptly removed using mechanical or chemical methods.
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