详情描述
Clean various heat exchangers, condensers, industrial pipelines, boilers, and steam power plant economizers. Grean Chemical Co. 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 cleaning various industrial heat exchange equipment. The company has 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. We also handle air conditioning and heat exchange equipment cleaning, as well as mechanical and chemical equipment cleaning. Additionally, we provide cleaning services for refrigeration and heating equipment, including descaling.
Jining Grean Cleaning Company stocks dozens of cleaning machines 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, and heating equipment. The company also provides long-term industrial heat exchanger cleaning and 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 achieve standardized and standardized cleaning of heat exchange equipment.
Chemical cleaning descaling process:
Recirculating Closed Circuit Cleaning
Circulating cleaning involves utilizing two existing parallel descaling pipelines to form a loop with the cleaning pump station, introducing a solution of a certain acidity, which circulates and cleans within the sludge water pipes. As the acid cleaning reaches a certain level, more acid solution is continuously added. For short-distance single sludge water pipelines, if conditions permit, a temporary pipeline can be laid to create a circulating loop for cleaning. This process must be conducted while the system is offline and is complex and costly.
Open Channel Cleaning
No two gray pipes can form a loop during cleaning; only a single gray pipe can be used for open-circuit cleaning. The method involves connecting one end of the gray pipe to the cleaning unit, continuously preparing a certain concentration of cleaning solution in the mixing tank, and then injecting it into the gray pipe continuously or intermittently. This process requires adding cleaning equipment during shutdown, which increases the cost.
Continuous cleaning without shutdown
This process involves continuously injecting a certain amount of acidic solution while simultaneously adding a specific quantity of slurry pipeline cleaning inhibitor and pipeline cleaning descaler. An open-loop cleaning is performed. The main function of the cleaning aid is to promote the reaction between the acidic solution and scale deposits at a certain concentration and flow rate, while also increasing its solubility in water, reducing airlock formation, and ensuring the quality of the ash pipe cleaning.
The procedure is as follows: Prior to 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 cleaner by considering the sludge flow rate and acidity. During cleaning, collect a sample at the front end of the sludge pipe every 30 minutes to test acidity and strictly control it by adjusting the flow rate of acid addition. In the later stage of cleaning, take a sample every 15 minutes at the end of the sludge pipe 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.
2. High-pressure water cleaning machinery:
High-pressure water jet cleaning offers advantages such as high efficiency, low cost, non-damaging to workpieces, non-polluting the environment, easy operation, and safety.
High-pressure water technology boasts the following advantages.
(1) Excellent Cleaning Quality: The high-pressure water jet cleaning for pipes and heat exchanger bores can completely remove all scale and blockages inside, revealing the metal itself. The high-pressure water jet, with its immense energy and supersonic speed, 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.
(2) Rapid Cleaning Speed: Due to the combined fracturing effects of water jet washing, wedging, shearing, and grinding, scale can be quickly broken and removed, making the cleaning speed several to ten times faster than traditional chemical methods, sandblasting, simple mechanical, and manual methods.
Components cleaned with high-pressure water jet do not require secondary cleaning; however, those chemically cleaned need to be rinsed with clean water to remove the surface.
(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 large volume of waste liquid like some chemical cleaning methods, which can contaminate rivers, soil, and water quality. The water jet cleaning with pure water as the medium is odorless, tasteless, and non-toxic. After atomization, the spray can also reduce the dust concentration in the work area, lowering atmospheric dust levels 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 can be categorized into carbonate scale, sulfate scale, silicate scale, and mixed scale, among others. 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.
(2) Classified by physical properties, there are two types: a hard scale that firmly adheres to the pot shell and pipe walls, and a loose sediment that is easily detached.
Lime scale primarily forms due to the salts like calcium and magnesium present in the boiler feed water, which precipitate and adhere to the metal surface upon heating. The thermal conductivity of lime scale is very low, approximately 2 to 5 times that of ordinary steel. Lime scale on the boiler's heating surface significantly 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 explosion 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.
Heat Exchanger and Refrigeration Equipment Cleaning - Choose GreenChem for Reliability
