Clean various heat exchangers, condensers, industrial pipelines, boilers, and steam power plant economizers. GlanChem 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 equipment cleaning technologies. We undertake cleaning services for industrial, private enterprise, corporate chemical equipment, power plant equipment, condensers, boilers, and economizers, as well as air conditioning units and heat exchangers. We also handle the cleaning of mechanical and chemical equipment, and the descaling of refrigeration and heating equipment.
Condenser Chemical Cleaning, Guan County, Liaocheng, Shandong

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 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 standardize and regulate the cleaning of heat exchange equipment.

Condenser Chemical Cleaning, Guan County, Liaocheng, Shandong

Chemical Cleaning Scale Removal Process

Recirculating Closed Loop Cleaning

Recirculation cleaning utilizes two original parallel desulfurization pipelines to form a loop, creating a circulating system with the cleaning pump station. It introduces a certain concentration of acidic solution, which circulates within the slurry pipes for cleaning. Additionally, as the acidic cleaning reaches a certain level, the solution is continuously replenished. For short-distance single slurry pipes, 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 is complex and costly.

Open Channel Cleaning

No two gray pipes should form a loop during cleaning; only a single gray pipe should be used for open circuit cleaning. The method involves connecting one end of the gray pipe to the cleaning unit, continuously preparing a specific concentration of cleaning solution in the dosing tank, and injecting it into the gray pipe continuously or intermittently. This process requires additional cleaning equipment during shutdown, which increases costs.

Continuous operation cleaning

The process involves continuously injecting a certain amount of acidic solution while operating, without interrupting the normal ash transportation in the ash pipe. Simultaneously, a specific quantity of ash pipe operation cleaning inhibitor and pipeline descaling agent is added for open-loop cleaning. 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, reducing the formation of air blockages, 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 pipeline by considering the flow rate of the gray water and the acidity. During cleaning, take samples at the sampling point at the front end of the sludge pipe every 30 minutes to test the acidity and strictly control it by adjusting the flow rate of acid addition. In the later stage of cleaning, take samples 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 process can be deemed complete.
Condenser Chemical Cleaning, Guan County, Liaocheng, 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 protection, ease of operation, and safety.
High-pressure water technology boasts the following advantages.

(1) High-quality Cleaning - During the high-pressure water jet cleaning of pipeline and heat exchanger bores, it can remove all scaling and obstructions inside the pipes, revealing the metal surface. The high-pressure water jet, with its immense energy and ultra-sonic movement, is fully capable of destroying tough scaling 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.
Condenser Chemical Cleaning in Guan County, Liaocheng, Shandong

(2) Fast Cleaning Speed: Due to the combined actions of water jet flushing, chiseling, shearing, and grinding, scale can be quickly broken and removed, which is several to tens of times faster than traditional chemical methods, sandblasting, ball-blasting, simple mechanical, and manual cleaning methods.

Additionally, parts cleaned with high-pressure water jetting do not require secondary cleaning; however, after chemical cleaning, the surface needs to be washed off with clean water.

(3) No Environmental Pollution: Since high-pressure water jet cleaning uses clean 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 pollute rivers, soil, and water quality. The water jet cleaning with clean water as the medium is odorless, tasteless, and non-toxic. After atomization, the emitted jet 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.

Condenser Chemical Cleaning, Guan County, Liaocheng, 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 of scales.
Condenser Chemical Cleaning, Guan County, Liaocheng, Shandong

(2) Classified by physical properties, there are two types: a hard scale that firmly adheres to the pot shell and tube walls, and a loose sediment that is easy to dislodge.
Lime scale primarily forms due to the salts, such as calcium and magnesium, in the boiler feed water being precipitated and adhering 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 significantly deteriorates heat transfer efficiency and affects the boiler's performance; it can easily cause metal materials to burn due to localized overheating, potentially leading to pipe explosion accidents; it also 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 either mechanical or chemical methods.

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