详情描述
Clean various heat exchangers, condensers, industrial pipelines, boilers, and steam power plant condensers. GlanChem partnership offers assurance.
Jining Green Chemical Technology Co., Ltd. (简称 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 possesses comprehensive business philosophy and the capability to research and develop industrial cleaning technologies. We undertake cleaning services for industrial, private enterprises, corporate chemical equipment, power station equipment, condensers in power plants, boilers, and air preheaters, as well as air conditioning units and heat exchange equipment. We also handle the cleaning of machinery and chemical equipment, as well as descaling of refrigeration and heating equipment.
Jining Green Clean Co. offers a variety of cleaning machines ranging from 10mpa to 250mpa, with dozens in stock, and more than a dozen chemical cleaning pump stations. Our primary services are to power plants, chemical factories, oil refineries, food processing plants, corporate entities, heating equipment, and more. The company also provides 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, achieving standardized and standardized cleaning of heat exchange equipment.
Chemical Cleaning Scale Removal Process
Recirculating Closed Loop Cleaning
Recirculating cleaning utilizes two existing parallel deslagging pipelines to form a loop, creating a circulation system with the cleaning pump station. A certain concentration of acidic solution is added, which circulates within the sludge water pipes for cleaning. As the acid cleaning reaches a certain level, the solution is continuously replenished with more acid. For short-distance single sludge 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.
Breakthrough 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 continuously or intermittently injecting it into the gray pipe. This process requires adding cleaning equipment during shutdown, which increases costs.
Continuous cleaning without downtime
The process involves continuously injecting a specific amount of acidic fluid while also introducing a certain quantity of ash conveying tube cleaning inhibitor and pipeline descaling agent, performing an open circuit cleaning. The main function of the cleaning aid is to facilitate the reaction between the acidic fluid and the ash scale at a certain concentration and flow rate, while also enhancing its solubility in water, reducing the formation of air blocks, and ensuring the quality of ash tube cleaning.
The procedure is as follows: 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 descaling agent and pipeline cleaner by considering the sludge flow rate and acidity. During cleaning, take a sample at the front end of the sludge pipe every 30 minutes to test the acidity and strictly control it by adjusting the acid flow rate. In the later stage of cleaning, take a sample at the end of the sludge 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 deemed 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, non-polluting to the environment, ease of operation, and safety.
High-pressure water technology boasts the following advantages.
(1) High-quality Cleaning: The high-pressure water jet cleaning for pipelines and the internal holes of heat exchangers can thoroughly remove all scaling and blockages inside, revealing the metal surface. The high-pressure water jet, with its immense energy and ultra-sonic speed, is capable of completely destroying hard scaling and blockages, but has no damaging effect on 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) Fast Cleaning Speed: Due to the combined action of water jet washing, splitting, shearing, and grinding, scaling can be quickly broken and removed, 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 must be rinsed off with clear water.
(3) Non-environmental pollution: Since high-pressure water jet cleaning uses clean 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 air and harm health. It also does not produce a large volume of waste liquid like some chemical cleaning methods, which can pollute rivers, soil, and water quality. The water jet cleaning with clean water as the medium is odorless, tasteless, and non-toxic. After atomization, the ejected jet 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, thus causing no pollution.
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) Categorized by physical properties, there are two types: scale that is firmly adhered to the pot shell and pipe walls, and sediments that are loosely textured and easily dislodged.
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. 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 also cause metal materials to burn due to localized overheating, potentially leading to tube explosion accidents; it accelerates galvanic corrosion, causing pipeline lime scale corrosion, and speeds up the damage to the heating surface. Once lime scale forms, it should be removed promptly using mechanical or chemical methods.
Heat Exchanger and Refrigeration Equipment Cleaning - Choose Green Chemical for Reliability
