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

Jining Grean Chemical Technology Co., Ltd. (简称 Jining Grean 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 develop industrial cleaning technology, undertaking cleaning services for industrial, private enterprises, chemical equipment, power plant equipment, condensers, boilers, and air preheaters. We also provide air conditioning and heat exchange equipment cleaning, as well as cleaning for machinery and chemical equipment. Additionally, we handle cleaning and descaling of refrigeration and heating equipment.
Steam Condenser High-pressure Water Cleaning Manufacturer in Mudian, Yantai, Shandong

Jining Greentech Cleaning Co. boasts dozens of cleaning machines in various models ranging from 10mpa to 250mpa, and more than a dozen chemical cleaning pump stations. Our main services include power plants, chemical factories, oil mills, food factories, enterprises and institutions, heating equipment, etc. The company also provides 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, which has enabled the cleaning of heat exchange equipment to be standardized and regulated.

Chemical Cleaning Scale Removal Process

Recirculating Closed Loop Cleaning

Recirculating cleaning utilizes two existing parallel deslagging pipelines to form a loop, creating a circulating system with the cleaning pump station. It introduces a solution of a certain acidity concentration, which circulates and cleans within the sludge water pipes. Additionally, as the acid cleaning reaches a certain level, acid is continuously replenished. For short-distance single sludge water pipelines, if conditions permit, a temporary pipeline can be laid to form a circulating loop for cleaning. This process must be carried out while the system is shut down, and it is complex and costly.

Open road cleaning

During cleaning, no two gray pipes should form a loop; only single-pipe cleaning is allowed. The method involves connecting one end of the gray pipe to the cleaning unit, continuously preparing a specific concentration of cleaning solution in the mixing tank, and then injecting it into the gray pipe either continuously or intermittently. This process requires adding cleaning equipment while the system is offline, resulting in higher costs.

Continuous cleaning without shutdown

The process involves continuously injecting a certain amount of acidic solution while the ash pipe is operating normally without interruption, simultaneously adding a specific quantity of ash-pipe running cleaning inhibitor and pipeline descaling agent, and performing an open-loop cleaning. The primary function of the cleaning aid 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 occurrence of airlock, and ensuring the quality of ash-pipe cleaning.

Operation method: 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 for the sludge discharge pipeline based on the gray water flow rate and acidity. During cleaning, collect samples 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 later stage of cleaning, collect samples 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 can be considered complete.


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

(1) Excellent Cleaning Quality: High-pressure water jet cleaning of pipe and heat exchanger bores can thoroughly remove scale and obstructions within, revealing the metal substrate. The high-pressure water jet, with its immense energy and supersonic movement, can completely destroy hard scale and obstructions 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.

(2) Fast Cleaning Speed - Due to the combined effects of water jet abrasion, wedging, shearing, and grinding, scale can be quickly shattered and removed, making the cleaning process several to ten times faster than traditional chemical methods, sandblasting and shot peening, 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 clear water.
High-pressure Water Cleaning Manufacturer for Condensers - Shandong Yantai Muping

(3) Non-Environmental Pollution: Since high-pressure water jet cleaning uses pure water as the medium, it does not generate large amounts of dust like sandblasting 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 contaminate rivers, soil, and water quality. The water jet, using pure water, is odorless, tasteless, and non-toxic. After atomization, it can even 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.

3. Pipe Scale

(1) Classified by chemical composition, they include carbonate scale, sulfate scale, silicate scale, and mixed scale. 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.

(2) Categorically divided 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 detached.
Lime scale primarily forms due to the salts like calcium and magnesium in the boiler feed water, which 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 heating surface significantly worsens heat transfer efficiency, affecting the boiler's performance; it can easily lead to metal material damage due to localized overheating, even causing tube explosion accidents; it also accelerates galvanic corrosion, leading to pipeline lime scale corrosion and hastening 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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