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. (简称 Jining Green Cleaning Co.) was established in 2010 and specializes in the cleaning of various industrial heat exchange equipment. The company boasts comprehensive business philosophy and the capability to research and develop industrial cleaning technologies. We undertake cleaning services for industrial, private enterprise, corporate chemical equipment, power plant equipment, condensers, boilers, and boiler air preheaters; as well as air conditioning and heat exchange equipment cleaning. We also handle cleaning and descaling of refrigeration and heating equipment.
Cooling Tower Cleaning, Filler Chemical Maintenance, Factory in Jiaozhou, Qingdao, Shandong
Jining Grean 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 are provided to power plants, chemical factories, oil mills, food factories, enterprises and institutions, 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 standardize and regulate the cleaning of heat exchange equipment.
Chemical Cleaning Scale Removal Process
Recirculating Closed Loop Cleaning
Recirculation cleaning utilizes two original parallel ash piping lines to form a loop, creating a recirculation system with the cleaning pump station. A certain concentration of acidic solution is added, which circulates through the ash water pipes for cleaning. As the acid washing reaches a certain level, the acidic solution is continuously replenished. For short-distance single ash water pipes, 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 and costly.
Breakthrough Cleaning
No two ash pipes can form a loop during cleaning; only single-pipe open circuit cleaning is allowed. The method involves connecting one end of the ash pipe to the cleaning unit, continuously preparing a specific concentration of cleaning solution in the mixing tank, and then continuously or intermittently injecting it into the ash pipe. This process requires adding cleaning equipment during shutdown, which increases costs.
Continuous cleaning without downtime
This process involves continuously injecting a specific quantity of acidic solution while operating under normal ash transportation conditions, simultaneously introducing a certain amount of ash transportation pipe cleaning inhibitor and pipeline cleaning stripping agent, and conducting open-loop cleaning. The primary function of the cleaning aid is to promote the reaction between the acidic solution and ash deposits at a certain concentration and flow rate, while also increasing its solubility in water, reducing the formation of air blocks, and ensuring the quality of ash pipe cleaning.
Operation procedure: 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 ash conveying pipeline by considering the gray water flow rate and acidity. During cleaning, take samples at the front sampling point of the ash pipeline every 30 minutes to test the acidity and strictly control it by adjusting the acid flow rate. In the later stage of cleaning, take samples at the end of the ash 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.
2. High-pressure water jet cleaning equipment
High-pressure water jet cleaning offers high efficiency, low costs, non-damaging to workpieces, environmental protection, ease of operation, and safety advantages.
The advantages of high-pressure water technology include:
(1) Excellent Cleaning Quality: During the high-pressure water jet cleaning of pipe and heat exchanger bores, it can remove all scaling and obstructions inside the pipes, revealing the metal substrate. The high-pressure water jet, with its immense energy and ultra-sonic speed, is fully capable of destroying hard scaling and obstructions, yet has no destructive effect on 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.
Cooling Tower Cleaning, Filler Chemical Maintenance, Factory in Qingdao Jiaozhou, Shandong
(2) Fast Cleaning Speed: Due to the combined action of jet washing, wedge splitting, 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, 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.
Cooling Tower Cleaning, Filler Chemical Maintenance, Factory in Qingdao Jiaozhou, Shandong
(3) No Environmental Pollution - Since high-pressure water jet cleaning uses pure water as the medium, it does not generate large amounts 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 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, 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 can be categorized into 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; mixed scale is usually a mixture of the above three types of scales.
Cooling Tower Cleaning, Filler Chemical Maintenance, Factory in Jiaozhou, Qingdao, Shandong
(2) Categorized by physical properties, there are two types: hard scale that firmly adheres to the pot shell and pipe walls, and loose sediment that is easy to detach.
Lime scale primarily forms due to the salts of calcium and magnesium in the boiler feed water that 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 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 local 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 Grean Chemical for Assurance
