详情描述
Clean various heat exchangers, condensers, industrial pipelines, boilers, and steam power plant 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 develop industrial cleaning technologies, undertaking cleaning services for industrial, private enterprises, 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. We also provide cleaning services for refrigeration and heating equipment, including descaling.
Jining Greentec Cleaning Co. has dozens of cleaning machines with various models ranging from 10MPa to 250MPa, as well as over a dozen chemical cleaning pump stations. Our main services include power plants, chemical factories, oil mills, food factories, corporate entities, heating equipment, etc. 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 to achieve standardized and standardized cleaning of heat exchange equipment.
Fertilizer Plant Heat Exchanger and Evaporator Cleaning, Shandong Dezhou Yucheng
Chemical Cleaning Scale Removal Process
Recirculating Closed Loop Cleaning
Recirculating cleaning utilizes two original parallel ash pipelines to form a loop, creating a circulation system with the cleaning pump station. A solution of a certain concentration is added, and it circulates through the ash water pipeline for cleaning. Additionally, acid is continuously replenished as the acid washing process reaches a certain level. 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 during shutdown and is complex, with higher costs.
Preliminary Cleaning
No two ash pipes can form a loop during cleaning; only a single ash pipe should be used for open circuit cleaning. The method involves connecting one end of the ash pipe to the cleaning unit, continuously preparing a certain concentration of cleaning solution in the mixing tank, and then injecting it into the ash pipe continuously or intermittently. This process requires adding cleaning equipment during shutdown, which increases costs.
Continuous operation cleaning
This process involves continuously injecting a certain amount of acidic solution while operating under the normal conveying condition of the ash pipe without interruption. Simultaneously, a specific quantity of ash conveying pipeline cleaning inhibitor and pipeline descaling agent is added. An open-loop cleaning is performed. The main function of the cleaning aid is to promote the reaction between the acidic solution and ash scale at a certain concentration and flow rate, while increasing its solubility in water and reducing the formation of air blockages, ensuring the cleaning quality of the ash pipe.
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 sludge pipeline operation by considering the flow rate of the grey water and the acidity. During cleaning, take a sample at the front end of the sludge pipeline every 30 minutes to test the acidity and strictly control it by adjusting the flow rate of acid addition. In the later stage of cleaning, take 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 can be deemed complete.
Chemical Fertilizer Plant Heat Exchanger and Evaporator Cleaning in Yucheng, Dezhou, 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 protection, ease of operation, and safety.
The advantages of high-pressure water technology include:
(1) Excellent Cleaning Quality - The high-pressure water jet cleaning of pipeline and heat exchanger bores can thoroughly remove scale and obstructions inside, revealing the metal substrate. The high-pressure water jet, with its immense energy and ultra-sonic movement, is fully capable of destroying hard 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 tensile strength of the metal.
(2) Fast Cleaning Speed: Due to the combined actions of water jet abrasion, splitting, shearing, and grinding, scaling can be quickly broken and removed, which is several to ten times faster than traditional chemical methods, sandblasting and shot peening techniques, simple mechanical, and manual cleaning methods.
Additionally, parts cleaned with high-pressure water jetting do not require secondary cleaning; however, after chemical cleaning, the surface chemical agents must be rinsed off with clean water.
(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, shot blasting, or simple mechanical cleaning, which can pollute the atmosphere and harm health. It also does not produce a large amount 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, it can also reduce the dust concentration in the work area, lowering atmospheric dust from 80mg/m³ with 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. 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) 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 of calcium and magnesium in the boiler feed water, which precipitate and adhere to the metal surface upon heating. Lime scale has a very low thermal conductivity, approximately 2 to 5 times less than that of ordinary steel. When lime scale accumulates on the boiler's heating surface, it significantly impairs heat transfer efficiency, affecting the boiler's performance; it also tends to cause metal materials to burn out due to localized overheating, potentially leading to pipe explosion incidents; it accelerates galvanic corrosion, causing pipeline scale corrosion, and hastens 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 GreenChem for Reliability
