详情描述
Clean various heat exchangers, condensers, industrial pipelines, boilers, and steam power plant condensers — GlanChem cooperation is guaranteed.
Jining Grean Chemical Technology Co., Ltd. (Abbreviated as Jining Grean Cleaning Co.) was established in 2010 and is a specialized company in cleaning various industrial heat exchange equipment. The company has comprehensive business philosophy and the capability to research and develop industrial cleaning technologies, handling cleaning services for industrial, private enterprise, and corporate chemical equipment, power station equipment, condensers in power plants, boilers, and boiler air preheaters; as well as air conditioning cleaning, heat exchange equipment cleaning, and cleaning for machinery and chemical equipment. Additionally, we undertake cleaning of refrigeration equipment, heating equipment, and descaling services.
Jining Grean Cleaning Co. has dozens of cleaning machines with various models ranging from 10mpa to 250mpa, and over a dozen chemical cleaning pump stations. Our main services are provided to power plants, chemical factories, oil refineries, food processing plants, corporate entities, heating equipment, and more. The company also offers long-term industrial heat exchanger cleaning and design solutions to industry clients.
Our company has recently purchased domestic cleaning machines and imported cleaning equipment. We have hired experienced technical specialists in the cleaning industry, enabling the cleaning of heat exchange equipment to be standardized and regulated.
Chemical cleaning descaling process:
Recirculating Closed Loop Cleaning
Recirculating cleaning utilizes two original parallel ash pipeline sections to form a loop, creating a recirculation system with the cleaning pump station. A solution of a certain concentration is added, and it circulates within the ash water pipes for cleaning. As the acid cleaning reaches a certain level, the solution is continuously replenished with more acid. For short-distance single ash water pipelines, if conditions permit, a temporary pipeline can be installed to form a recirculation loop for cleaning. This process must be carried out while the system is offline, and it is complex and costly.
Open road cleaning
No two gray pipes can form a loop during cleaning; only a single gray pipe can be used for open-loop 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 dosing tank, and then injecting it into the gray pipe continuously or intermittently. This process requires additional cleaning equipment during shutdown, which increases costs.
Continuous Operation Cleaning
The process involves continuously injecting a specific amount of acidic solution while simultaneously introducing a certain quantity of slurry pipe operation cleaning inhibitor and pipeline descaling agent, followed by an open circuit cleaning. The primary function of the cleaning aids is to facilitate the reaction between the acidic solution and the scale in a solution of specific concentration and flow rate, while also enhancing its solubility in water and reducing the occurrence of air blockages, ensuring the quality of the ash pipe cleaning.
The procedure is as follows: Prior to cleaning, first estimate the required acid quantity based on the total scale in the pipeline. Then, calculate the acid addition rate and the flow rate of the ash removal agent and pipeline cleaning agent based on the flow rate of the sludge water and the acidity. During cleaning, collect samples at the front sampling point of the ash pipe 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, collect samples at the end of the ash 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 equipment
High-pressure water jet cleaning offers advantages such as high efficiency, low cost, non-damaging to workpieces, environmental friendliness, ease of operation, and safety.
The high-pressure water technology boasts the following advantages.
(1) Excellent Cleaning Quality - During the high-pressure water jet cleaning of pipelines and the inner holes of heat exchangers, it can remove all scaling and blockages from inside the pipes, revealing the metal itself. The high-pressure water jet, with its immense energy and supersonic movement, is fully capable of destroying tough scaling and blockages, but has no detrimental effect on 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 scouring, 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, ball shot peening, simple mechanical, and manual methods.
Additionally, parts cleaned with high-pressure water jetting do not require secondary cleaning; however, after chemical cleaning, the surface must be washed off with plain 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 atmosphere and harm health. Nor does it 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 clean water as the medium is odorless, tasteless, and non-toxic. After atomization, it can also reduce the dust concentration in the working area, lowering atmospheric dust from 80mg/m³ using other methods to below the national safety standards. Therefore, it does not cause any 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.
(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 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. 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 impairs heat transfer efficiency and affects the boiler's performance; it also tends to damage metal materials due to localized overheating, potentially leading to pipe explosion incidents; it accelerates galvanic corrosion, causing pipeline lime 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
