High-pressure Water Cleaning Manufacturer in Zhangdian, Zibo, Shandong

Clean various heat exchangers, condensers, industrial pipelines, boilers, and steam power plant condensers. GlanChem Co. offers reliable cooperation.

Jining Greentech Co., Ltd. (简称 Jining Greentech Cleaning Co.) was established in 2010 and specializes in the cleaning of various industrial heat exchangers. The company has comprehensive business philosophy and the capability to research and develop industrial cleaning technology, handling services such as cleaning for industrial, private enterprises, chemical equipment, power plant equipment, condensers, boilers, and boiler air preheaters; air conditioning cleaning, heat exchanger cleaning; mechanical and chemical equipment cleaning; as well as descaling for refrigeration and heating equipment.

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, and heating equipment. 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, enabling the cleaning of heat exchange equipment to be standardized and standardized.

High-Pressure Water Jet Cleaning Manufacturer in Zhangdian, Zibo, Shandong

Chemical Cleaning Scale Removal Process

Recirculating Closed Loop Cleaning

Recirculation cleaning utilizes two original parallel ash pipelines to form a loop, creating a recirculation system with the cleaning pump station. A solution of a certain concentration of acidity is added, and it circulates within the ash water pipeline for cleaning. Additionally, as the acid washing reaches a certain level, acid is continuously replenished. For short-distance single ash water pipelines, if conditions permit, a temporary pipeline can be laid to create a recirculation loop for cleaning. This process must be carried out while the system is offline, and it is complex and costly.

Open Channel Cleaning

During cleaning, two grey pipes cannot form a loop; only single-pipe open-loop cleaning is allowed. 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 then continuously or intermittently injecting it into the grey pipe. 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 running the ash conveying pipe, simultaneously adding a specific quantity of ash conveying pipe cleaning inhibitor and pipeline descaler, performing an open-circuit cleaning. The primary function of the cleaning aids is to facilitate the reaction between the acidic solution and the ash scale at a certain concentration and flow rate, while also enhancing its solubility in water, reducing the occurrence of air blockage, and ensuring the quality of ash pipe cleaning.

Operation method: Before cleaning, first estimate the required acid amount based on the total scaling in the pipeline, then calculate the acid addition rate and silt transport pipeline flow rate for the addition of cleaning inhibitors and pipeline descaling agents according to the sludge water flow rate and acidity. During cleaning, collect a sample at the front end of the sludge pipeline every 30 minutes to test the acidity and strictly control it by adjusting the acid flow rate. In the latter stage of cleaning, collect a sample at the end of the sludge pipeline 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.
High-Pressure Water Jet Cleaning Manufacturer in Zhangdian, Zibo, 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.
The high-pressure water technology offers the following advantages.

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

High-pressure water cleaning will not damage the base material being cleaned, as the pressure is less than the compressive strength grade of the metal.
High-pressure Water Jet Cleaning Manufacturer in Zhangdian, Zibo, Shandong

(2) Fast Cleaning Speed: Due to the combined abrasive actions of water jetting, 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, 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 rinsed with clean water.
High-Pressure Water Cleaning Manufacturer in Zhangdian, Zibo, Shandong

(3) No Environmental Pollution: As 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 air 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, using pure water, is odorless, tasteless, and non-toxic. After atomization, the emitted jet 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 causing no pollution.

Pipe Scale

(1) Classified by chemical composition, they include 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.
High-pressure Water Jet Cleaning Manufacturer - Zhangdian, Zibo, Shandong

(2) Classified by physical properties, there are two types: scale that firmly adheres to the pot shell and tube walls, and sediment that is loosely textured and easily detachable.
Lime scale primarily forms due to the salts of calcium, magnesium, and other minerals in the boiler feed water that 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 significantly worsens the 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 heating surface. Once lime scale forms, it should be promptly removed using mechanical or chemical methods.

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