Clean various heat exchangers, condensers, industrial pipelines, boilers, and steam power plant equipment condensers. Glan Chemical Co. offers guaranteed cooperation.

Jining Green Chemical Technology Co., Ltd. (abbreviated to Jining Green Cleaning Co.) was established in 2010 and specializes in the cleaning of various industrial heat exchange equipment. The company possesses comprehensive business philosophy and the capability to develop industrial cleaning technologies, undertaking cleaning services for industrial, private enterprises, chemical equipment, power station equipment, condensers in power plants, boilers, and boiler air preheaters; as well as air conditioning and heat exchange equipment cleaning. We also handle cleaning and descaling of refrigeration and heating equipment.

Jining Green Clean Company stocks dozens of cleaning machines with various models ranging from 10mpa to 250mpa, and over a dozen chemical cleaning pump stations. Our primary services are to 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 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, enabling the cleaning of heat exchange equipment to be standardized and standardized.

Chemical cleaning and scaling removal process:

Recirculating Closed Loop Cleaning

Recirculating cleaning utilizes two existing parallel ash removal pipelines to form a loop, creating a recirculation system with the cleaning pump station. It involves adding a solution of a certain acidity concentration, circulating it through the ash water pipeline for cleaning. Additionally, as the acid washing decreases to a certain extent, acid is continuously replenished. For short-distance single ash 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 offline, and it is complex and costly.

Breakbulk Cleaning

No two ash pipes can form a loop during cleaning; only a single ash pipe can be used for open-circuit cleaning. The method involves connecting one end of the ash pipe to the cleaning unit, continuously preparing a specific concentration of cleaning solution in the liquid preparation tank, and then continuously or intermittently injecting it into the ash pipe. This process requires the addition of cleaning equipment during shutdown, which increases costs.
Stainless Steel Condenser Cleaning in Jinan, Shandong

Continuous operation cleaning

The process involves continuously injecting a specific quantity of acid solution while operating, without stopping the normal ash transportation in the ash pipe. Simultaneously, a certain amount of ash-pipe cleaning inhibitor and pipeline cleaning descaler is injected for operation. An open-loop cleaning is conducted. The main function of the cleaning aids is to facilitate the reaction between the acid solution and scale deposits at a certain concentration and flow rate, while also increasing the solubility in water and reducing the formation of gas 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 end 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.


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) Excellent Cleaning Quality - High-pressure water jet cleaning of pipeline and heat exchanger bores can thoroughly remove scale and obstructions inside, revealing the metal surface. The high-pressure water jet, with its immense energy and supersonic speed, is fully capable of destroying hard scale and obstructions without causing any damage to the metal.

Since the pressure of the high-pressure water is less than the compressive strength grade of the metal, high-pressure cleaning will not damage the base material being cleaned.
Stainless Steel Condenser Cleaning in Jinan, Shandong

(2) Rapid 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 process several to ten times faster than traditional chemical methods, sandblasting and shot peening techniques, simple mechanical, and manual methods.

Additionally, parts cleaned with high-pressure water jetting do not require secondary cleaning; however, after chemical cleaning, the surface must be rinsed with clean water.
Stainless Steel Condenser Cleaning in Jinan, 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 or simple mechanical cleaning, which can pollute the air 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, using pure water, is odorless, tasteless, and non-toxic. After atomization, it can also reduce the dust concentration in the work area, lowering atmospheric dust levels from 80mg/m³ using other methods to below the national safety standards, thus ensuring no pollution is caused.

Stainless Steel Condenser Cleaning in Jinan, Shandong

3. Pipe Scale

(1) Classified by chemical composition, they include carbonate scale, sulfate scale, silicate scale, and mixed scale, among others. The main components of carbonate scale are calcium carbonate and magnesium carbonate; the primary components of sulfate and silicate scales are calcium sulfate and silicate compounds, respectively. Mixed scale is usually a mixture of the above three types.
Stainless Steel Condenser Cleaning in Jinan, Shandong

(2) Categorized 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 detached.
Lime scale primarily forms due to the salts like calcium and magnesium in the boiler feed water that precipitate and adhere to the metal surface upon heating. The thermal conductivity of lime scale is very low, around 2 to 5 times that of ordinary steel. Lime scale deposited on the boiler's heat-absorbing surface greatly worsens heat transfer efficiency, affecting the boiler's performance; it can easily cause metal materials to burn due to localized overheating, potentially leading to pipe burst 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 mechanical or chemical methods.

Heat exchanger and refrigeration equipment cleaning, choose Green Chemical for reliability.