High-Pressure Water Jet Cleaning Company, Qingyang, Qingdao, Shandong

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

Jining Green Chemical Technology Co., Ltd. (abbreviated to 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 has comprehensive business philosophy and the capability to research and develop industrial cleaning technologies, undertaking cleaning services for industrial, private enterprise, corporate chemical equipment, power station equipment, power plant condensers, boilers, and boiler air preheaters; as well as air conditioning and heat exchange equipment cleaning. We also handle the cleaning and scaling removal of refrigeration and heating equipment.
High-pressure Water Cleaning Company in Qingyang, Qingdao, Shandong

Jining Greentech Cleaning Co. has dozens of cleaning machines of various models 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 to achieve standardized and standardized cleaning of heat exchange equipment.

High-Pressure Water Jet Cleaning Company, Qingyang, Qingdao, Shandong

Chemical descaling cleaning process:

Recirculating Closed Loop Cleaning

Recirculating cleaning utilizes two original parallel ash piping lines to form a loop, creating a recirculation system with the cleaning pump station. A certain concentration of acidic solution is added, allowing for circulation and cleaning within the ash water pipes. As the acid washing 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 recirculation loop for cleaning. This process must be carried out while the system is shut down, and it is complex and costly.

Breakout Cleaning

During cleaning, no two grey pipes can form a loop; only a single grey pipe should be used for open-loop cleaning. The method involves connecting one end of the grey pipe to the cleaning device, continuously preparing a specific concentration of cleaning solution in the blending tank, and then injecting it into the grey pipe continuously or intermittently. This process requires the addition of cleaning equipment during shutdown, which increases the cost.

Continuous Operation Cleaning

The process involves continuously injecting a certain amount of acidic solution while the ash pipe is operating normally and not shut down, simultaneously adding a certain amount of ash pipe operation cleaning inhibitor and pipeline cleaning descaler for open-loop cleaning. The main 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 formation 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 slurry pipeline based on the flow rate and acidity of the grey water. During cleaning, take samples at the sampling point at the front end of the ash pipe every 30 minutes to test the acidity, and strictly control the acidity by adjusting the acid flow rate. 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 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 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 completely remove scale and blockages inside, revealing the metal surface. With its immense energy and supersonic speed, the high-pressure water jet is fully capable of destroying hard scale and blockages 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.
High-Pressure Water Cleaning Company, Qingyang, Qingdao, Shandong

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

Additionally, components cleaned with high-pressure water jetting do not require secondary cleaning; however, after chemical cleaning, the surface must be washed off with plain water.
High-Pressure Water Jet Cleaning Company in Qingyang, Qingdao, Shandong

(3) No 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, shot 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 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 using other methods to below the national safety standards, thus causing no pollution.

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.
High-Pressure Water Cleaning Company, Qingyang, Qingdao, Shandong

(2) Classified by physical properties, there are two types: hard scale that firmly adheres to the pot shell and tube walls, and loose sediment that is easy to dislodge.
Scale primarily forms due to the salts like calcium and magnesium in the boiler feed water precipitating and adhering to the metal surface upon heating. The thermal conductivity of scale is very low, approximately 2 to 5 times that of ordinary steel. Scale accumulation on the boiler's heating surface significantly deteriorates heat transfer efficiency, affecting the boiler's performance; it can easily cause metal materials to burn due to localized overheating, even leading to tube 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.

Heat exchanger and refrigeration equipment cleaning, choose Green Chemical for peace of mind.