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 specializes in the cleaning of various industrial heat exchange equipment. The company boasts comprehensive business philosophy and the capability to develop industrial cleaning technologies, undertaking cleaning services for industrial, private enterprise, corporate chemical equipment, power plant equipment, condensers, boilers, and economizers. We also provide air conditioning cleaning, heat exchange equipment cleaning, and accept orders for machinery and chemical equipment cleaning. Additionally, we handle cleaning and descaling of refrigeration and heating equipment.
Jining Grean Cleaning Co. offers dozens of cleaning machines with pressure ratings ranging from 10mpa to 250mpa, as well as over a dozen chemical cleaning pump stations. Our primary services are provided 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 solutions to industry clients.
Our company has newly acquired domestic cleaning machines and imported cleaning equipment. We've hired experienced technical experts in the cleaning industry to standardize and normalize the cleaning of heat exchange equipment.
Chemical descaling process:
Recirculating closed-loop cleaning
Recirculating cleaning utilizes two original parallel ash removal pipelines to form a loop, creating a circulation system with the cleaning pump station. It adds a solution of a certain acidity concentration, which circulates within the ash water pipeline for cleaning. As the acid cleaning process decreases to a certain level, acid is continuously replenished. For short-distance single ash water pipelines, if conditions permit, a temporary pipeline can be laid to create a recirculating loop for cleaning. This process must be carried out during shutdown, and it is complex and costly.
Open path cleaning
During cleaning, two grey pipes cannot form a loop; only single-pipe open circuit cleaning is allowed. The method involves connecting one end of the grey 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 grey pipe. This process requires the addition of cleaning equipment during shutdown, resulting in higher costs.
Continuous cleaning without shutdown
This process involves continuously injecting a certain amount of acidic solution while the ash pipeline is operating normally without interruption. Simultaneously, a specific quantity of ash pipeline running cleaning inhibitor and pipeline cleaning descaler is added, followed by an open-loop cleaning. The main function of the cleaning aid is to promote the reaction between the acidic solution and the ash scale at a certain concentration and flow rate, while also increasing its solubility in water and reducing the formation of air blockages, ensuring the quality of ash pipeline cleaning.
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 ash slurry pipeline for the addition of corrosion inhibitors and pipeline cleaner descaler. During cleaning, take a sample at the front of the ash pipeline every 30 minutes to test the acidity, and strictly control the acidity by adjusting the acid flow rate. In the later stage of cleaning, take a sample 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 can be considered 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.
High-pressure water technology boasts the following advantages.
(1) Excellent Cleaning Quality - High-pressure water jet cleaning of pipeline and heat exchanger bores effectively removes all scale and blockages inside, revealing the metal surface. The high-pressure water jet, with its immense energy and ultra-sonic speed, can completely destroy tough 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 surface being cleaned.
(2) Rapid Cleaning Speed: Due to the combined abrasive actions of water jetting, wedging, shearing, and grinding, scale can be quickly shattered and removed, several to ten times faster than traditional chemical methods, sandblasting, ball peening, simple mechanical, and manual cleaning techniques.
Components cleaned with high-pressure water jetting do not require secondary cleaning; however, after chemical cleaning, the surface chemical must be rinsed off with clean water.
(3) No Environmental Pollution: Since 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 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 emitted jet 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.
3. Pipe Scale
(1) Classified by chemical composition, they include 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) Classified by physical properties, there are two types: scale that firmly adheres to the pot shell and tube wall, and sediment that is loosely textured and easy to detach.
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 less than 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 easily cause metal materials to burn due to local overheating, potentially leading to pipe explosion accidents; it accelerates galvanic corrosion, causing pipeline lime scale corrosion, and speeds up 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
