详情描述
Clean all types of heat exchangers, condensers, industrial pipelines, boilers, and steam power plant condensers. Glan Chemicals offers guaranteed cooperation.
Jining Greentech Chemical Technology Co., Ltd. (简称 Jining Greentech Cleaning Co.) was established in 2010 and specializes in cleaning 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 enterprises, chemical equipment, power station equipment, condensers in power plants, boilers, and economizers. We also handle air conditioning cleaning, heat exchange equipment cleaning, and mechanical and chemical equipment cleaning. In addition, we offer cleaning services for refrigeration and heating equipment, including descaling.
Jining Green Clean Company stocks dozens of cleaning machines with various models ranging from 10mpa to 250mpa, and over a dozen chemical cleaning pump stations. Our main services include power plants, chemical factories, oil refineries, food factories, corporate entities, heating equipment, etc. The company also provides long-term industrial heat exchanger cleaning and solution design services for industry clients.
Our company has newly acquired domestic cleaning machines and imported cleaning equipment. We have hired experienced technical specialists in the cleaning industry, which has enabled the cleaning of heat exchange equipment to be standardized and standardized.
Chemical descaling process:
Recirculating closed-loop cleaning
Recirculating cleaning utilizes two existing 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 within the ash water pipeline for cleaning. As the acid washing reduces to a certain extent, the acidic solution is continuously replenished. 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 while the system is shut down, and it is complex and costly.
Open road cleaning
No two grey pipes can form a loop during cleaning; only single grey pipe open circuit cleaning is allowed. The method involves connecting one end of the grey pipe to the cleaning device, continuously preparing a certain concentration of cleaning solution in the solution tank, and then continuously or intermittently injecting it into the grey pipe. This process requires adding cleaning equipment while the system is shutdown, resulting in higher costs.
Continuous cleaning without shutdown
The process involves continuously injecting a certain amount of acidic solution while operating, without stopping the normal ash transportation through the ash pipe. Simultaneously, a specific quantity of ash pipe running cleaning inhibitor and pipeline descaling agent is added for open-loop cleaning. The primary 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 enhancing its solubility in water, reducing the occurrence of airlock, and ensuring the quality of ash pipe 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 for the sludge pipe operation by considering the gray water flow and acidity. During the cleaning process, take samples at the sampling point at the front 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 samples 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 is efficient, cost-effective, non-damaging to workpieces, environmentally friendly, easy to operate, and safe.
High-pressure water technology boasts the following advantages.
(1) Excellent Cleaning Quality: High-pressure water jet cleaning of pipelines and heat exchanger bores can thoroughly remove all scale and blockages inside, revealing the metal substrate. The high-pressure water jet, with its immense energy and supersonic movement, is capable of completely destroying hard scale and blockages 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 compressive strength grade of the metal.
(2) Rapid Cleaning Speed: Due to the combined fracturing effects of water jet scouring, wedging, shearing, and grinding, scale 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.
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 using pure water is odorless, tasteless, and non-toxic. After atomization, the spray 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, 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; mixed scale is usually a mixture of the above three types of scales.
(2) Categorized by physical properties, there are two types: hard scale that firmly adheres to the pot shell and tube walls, and soft sediment that is loose and easily detachable.
Lime scale primarily forms due to the salts of 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 severely deteriorates heat transfer efficiency and affects the boiler's performance; it can also easily cause metal materials to burn out due to localized overheating, potentially leading to pipe 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 promptly removed using mechanical or chemical methods.
Heat Exchanger and Refrigeration Equipment Cleaning - Choose GreenChem for Reliability
