Coil-Type Initial Cooling Cleaner in Tancheng, Linyi, Shandong

Clean various heat exchangers, condensers, industrial pipelines, boilers, and steam power plant equipment condensers. Glan Chemical Co., Ltd. guarantees 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 research and develop industrial cleaning technologies. We undertake cleaning services for industrial, private enterprise, corporate chemical equipment, power plant equipment, condensers, boilers, and boiler air preheaters; as well as air conditioning cleaning, heat exchange equipment cleaning, and the cleaning of machinery and chemical equipment. We also handle cleaning and descaling of refrigeration and heating equipment.

Jining Grean Cleaning Co. offers dozens of cleaning machines in various models ranging from 10mpa to 250mpa, as well as over a dozen chemical cleaning pump stations. Our main services include power plants, chemical factories, oil refineries, food processing plants, corporate entities, heating equipment, and more. The company also provides long-term industrial heat exchanger cleaning and solution design services 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 to achieve standardized and standardized cleaning of heat exchange equipment.

Coil Type Preliminary Cooler Cleaning in Tancheng, Linyi, Shandong

Chemical cleaning scale removal process:

Recirculating Closed Loop Cleaning

Recirculation cleaning utilizes two original parallel ash removal pipelines to form a circuit, creating a circulation system with the cleaning pump station. A certain concentration of acidic solution is added, and it circulates through the ash water pipeline for cleaning. As the acid washing reaches a certain level, more acid solution is continuously added. For short-distance single ash water pipelines, if conditions permit, a temporary pipeline can be laid to form a circulation loop for cleaning. This process must be carried out while the system is shut down, and it is complex and costly.

Horizontal tube primary cooler cleaning in Tancheng, Linyi, Shandong

Preliminary Cleaning

No two grey pipes can form a loop during cleaning; only a single grey pipe can be used for open circuit cleaning. The method involves connecting one end of the grey pipe to the cleaning unit, continuously preparing a specific concentration of cleaning solution in the dosing tank, and injecting it into the grey pipe continuously or intermittently. This process requires additional cleaning equipment during shutdown, resulting in higher costs.
Horizontal Tube Type Initial Cooler Cleaning in Tancheng, Linyi, Shandong

Continuous cleaning without shutdown

The process involves continuously injecting a certain amount of acidic solution while the ash pipe is operating normally without interruption, simultaneously adding a specific quantity of ash-pipe running cleaning inhibitor and pipeline descaling agent. This is an open-circuit cleaning method. The primary function of the cleaning aids is to promote the reaction between the acidic solution and the ash scale at a certain concentration and flow rate, while also increasing its solubility in water and reducing the occurrence of air blockages, ensuring the quality of ash-pipe cleaning.

The procedure is: 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 ash conveying pipe for the addition of cleaning and corrosion inhibitor based on the flow rate of the sludge water and acidity. During cleaning, take samples at the sampling point at the front of the ash pipe every 30 minutes to test the acidity, and strictly control the acidity by adjusting the flow rate of acid addition. In the later stage of cleaning, take samples at the end of the ash 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 process can be deemed complete.
Coil-type Preliminary Cooler Cleaning in Tancheng, Linyi, Shandong

2. High-pressure water jet cleaning equipment
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 for pipes and the internal holes of heat exchangers can completely remove scale and obstructions from the inside of the pipes, revealing the metal substrate. With immense energy and moving at supersonic speeds, the high-pressure water jet is fully capable of destroying hard scales and obstructions without causing any damage to the metal.

Due to the pressure of high-pressure water being less than the compressive strength grade of metal, high-pressure cleaning will not damage the base material being cleaned.
Coil-type Preliminary Cooler Cleaning in Tancheng, Linyi, Shandong

(2) Fast Cleaning Speed: Due to the combined effects of jet washing, wedging, shearing, and abrasive cutting, scale can be quickly broken and removed, making the cleaning process several to tens of times faster than traditional chemical methods, sandblasting, simple mechanical, and manual methods.

Additionally, parts cleaned with high-pressure water jetting do not require secondary cleaning; however, after chemical cleaning, the surface chemical agents must be rinsed off with clean water.
Horizontal tube initial cooler cleaning in Tancheng, Linyi, Shandong

(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, grit-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, the emitted jet can also reduce the dust concentration in the working area, lowering atmospheric dust levels from 80mg/m³ with other methods to below the national safety standards, thus ensuring no pollution is caused.

Pipe Scale

(1) Classified by chemical composition, they can be categorized into carbonate scale, sulfate scale, silicate scale, and mixed scale. 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; mixed scale is usually a mixture of the above three types.
Horizontal Tube Type Preliminary Cooler Cleaning in Tancheng, Linyi, Shandong

(2) Categorized by physical properties, there are two types: a hard scale that firmly adheres to the pot and tube walls, and a loose sediment that is easy to dislodge.
Lime scale primarily forms due to the salts like calcium and magnesium in the boiler feed water, which precipitate and adhere to the metal surface upon heating. Lime scale has a very low thermal conductivity, approximately 2 to 5 times less than that of ordinary steel. When lime scale accumulates on the boiler's heat transfer surface, it severely degrades heat transfer efficiency and affects the boiler's performance; it can easily cause metal materials to burn due to localized overheating, even leading to pipe burst accidents; it also accelerates galvanic corrosion, causing pipeline lime scale corrosion and speeding up the damage to the heat transfer surface. Once lime scale forms, it should be promptly removed using mechanical or chemical methods.

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