Fertilizer plant heat exchanger cleaning in Dongming, Heze, Shandong

Clean various heat exchangers, condensers, industrial pipelines, boilers, and steam power plant condensers. GlanChem partnership ensures reliability.

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 a comprehensive business philosophy and the capability to develop industrial equipment cleaning technology. We undertake the cleaning of industrial equipment, corporate chemical equipment, power station equipment, power plant condensers, boilers, and boiler air preheaters, as well as air conditioner cleaning, heat exchange equipment cleaning, and the cleaning of mechanical and chemical equipment. We also handle the cleaning of refrigeration equipment and heating equipment for scale removal.
Chemical Fertilizer Plant Heat Exchanger Cleaning in Dongming, Heze, Shandong

Jining Grean Cleaning Co. offers a wide range of cleaning machines from 10mpa to 250mpa, with dozens of units available, as well as over a dozen chemical cleaning pump stations. Our primary services include power plants, chemical factories, oil refineries, food processing plants, corporate entities, and heating equipment. Additionally, the company provides long-term industrial heat exchanger cleaning and design solutions for 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 standardized the cleaning of heat exchange equipment.

Chemical Cleaning Scale Removal Process

Recirculating Closed Circuit Cleaning

Circulating cleaning involves using two existing parallel ash piping lines to form a loop, creating a circulation system with a cleaning pump station. A certain concentration of acidic solution is added, which circulates through the ash water pipes for cleaning. As the acid cleaning reaches a certain level, the acidic solution is continuously replenished. 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.
Chemical Fertilizer Plant Heat Exchanger Cleaning in Dongming, Heze, Shandong

Open Channel Cleaning

During cleaning, two grey pipes cannot form a loop; only single grey pipe open-circuit cleaning is allowed. The method involves connecting one end of the grey pipe to the cleaning unit, continuously preparing a certain concentration of cleaning solution in the mixing tank, and then continuously or intermittently injecting it into the grey pipe. This process requires the addition of cleaning equipment during shutdown, resulting in higher costs.
Chemical Fertilizer Plant Heat Exchanger Cleaning in Dongming, Heze, Shandong

Continuous Operation Cleaning

This process involves continuously injecting a certain amount of acidic solution while operating the ash conveying pipes, simultaneously introducing a specific quantity of ash conveying pipe cleaning inhibitor and pipeline descaling agent. This is an open-loop cleaning process. The primary role of the cleaning aid is to facilitate the reaction between the acidic solution and ash deposits at a certain concentration and flow rate, while also enhancing its solubility in water and reducing the formation of air blockages, 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 descaling agent and pipeline cleaning agent based on the sludge water flow rate and acidity. During cleaning, take a sample at the front of the sludge 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 sludge 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 considered complete.
Chemical Fertilizer Plant Heat Exchanger Cleaning in Dongming, Heze, Shandong

2. High-pressure water jet cleaning machinery
High-pressure water jet cleaning offers high efficiency, low costs, non-destructive to workpieces, environmental friendliness, ease of operation, and safety.
High-pressure water technology boasts the following advantages.

(1) Excellent Cleaning Quality: The high-pressure water jet cleaning of pipeline and heat exchanger bores can completely remove scale and blockages inside, revealing the metal substrate. With immense energy and moving at supersonic speed, the high-pressure water jet is fully capable of destroying hard scale and blockages without causing any damage to the metal.

Since the pressure of high-pressure water is less than the compressive strength grade of metal, high-pressure cleaning will not damage the base material being cleaned.
Chemical Fertilizer Plant Heat Exchanger Cleaning in Dongming, Heze, Shandong

(2) Fast Cleaning Speed: Due to the combined action of water jet washing, wedge splitting, shearing, and grinding, scale can be quickly broken and removed, making the cleaning speed several to ten 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.
Fertilizer plant heat exchanger cleaning in Dongming, Heze, Shandong

(3) Non-Environmental Pollution: As high-pressure water jet cleaning uses pure water as the medium, it does not produce 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 generate a significant amount 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. Therefore, it does not cause any pollution.

Fertilizer Plant Heat Exchanger Cleaning, Dongming, Heze, Shandong

Pipe Scale

(1) Classified by chemical composition, it includes 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; mixed scale is usually a mixture of the above three types.
Fertilizer plant heat exchanger cleaning in Dongming, Heze, Shandong

(2) Classified by physical properties, there are two types: scale that firmly adheres to the pot shell and tube walls, and sludge that is loosely textured and easy to dislodge.
Lime scale primarily forms due to the salts of calcium and magnesium present 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 that of ordinary steel. When lime scale accumulates on the boiler's heating surface, it severely impairs heat transfer efficiency and affects the boiler's performance; it can also cause metal materials to burn due to localized overheating, potentially leading to pipe explosion accidents; it accelerates galvanic corrosion, causing pipeline lime scale corrosion, and speeding up the deterioration of the heating surface. Once lime scale forms, it should be promptly removed using mechanical or chemical methods.

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