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 Greentech Chemical Technology Co., Ltd. (简称 Jining Greentech Cleaning Co.) was established in 2010 and is a professional company specializing in the cleaning of various industrial heat exchange equipment. The company has comprehensive business philosophy and the capability to research and develop industrial cleaning technologies, undertaking cleaning services for industrial, private enterprise, and corporate chemical equipment, power station equipment, power plant condensers, boilers, and boiler air preheaters; as well as air conditioning and heat exchange equipment cleaning. We also handle cleaning of mechanical and chemical equipment, and descaling of refrigeration and heating equipment.
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Jining Grean Cleaning Company stocks dozens of cleaning machines with various models ranging from 10mpa to 250mpa, and more than a dozen chemical cleaning pump stations. Our main services are provided to power plants, chemical factories, oil mills, food factories, corporate entities, heating equipment, and more. 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, which has enabled the cleaning of heat exchange equipment to be standardized and standardized.
Chemical Cleaning Scale Removal Process
Recirculating Closed Loop Cleaning
Recirculating cleaning utilizes two existing parallel ash pipelines 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 pipelines, 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 it is complex and costly.
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Breakbulk Cleaning
No two grey pipes should form a loop during cleaning; only a single grey pipe should be used for open-loop cleaning. The method involves connecting one end of the grey pipe to the cleaning unit, continuously preparing a certain concentration of cleaning solution in the mixture tank, and then continuously or intermittently injecting it into the grey pipe. This process requires the addition of cleaning equipment during shutdown, which increases costs.
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Continuous cleaning without shutdown
The process involves continuously injecting a certain amount of acidic solution while the ash pipe is operating normally without interruption, simultaneously adding a certain quantity of ash-pipe running cleaning inhibitor and pipeline descaling agent. This is an open-circuit cleaning method. The primary function of the cleaning aids 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 and reducing the occurrence of air blockages, ensuring the quality of ash-pipe cleaning.
The procedure is as follows: Prior to cleaning, 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 sludge pipeline cleaning inhibitor and pipeline cleaner剥离剂 based on the sludge flow rate and acidity. During the cleaning process, collect 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 stages of cleaning, collect 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 considered complete.
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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) High-quality Cleaning - During high-pressure water jet cleaning of pipes and the internal holes of heat exchangers, all scaling and blockages inside the pipes are thoroughly removed, revealing the metal surface. The high-pressure water jet, with its immense energy and supersonic movement, is fully capable of destroying tough scaling and blockages, but has no destructive 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.
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(2) Fast Cleaning Speed: Due to the combined effects of jet washing, wedging, shearing, and grinding from the water jet, scaling 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.
Components cleaned with high-pressure water jetting do not require secondary cleaning; however, those chemically cleaned need to be rinsed with clean water to remove the surface.
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(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 or simple mechanical cleaning, which can pollute the air and harm health. It also does not produce a significant amount of waste liquid like some chemical cleaning methods, which can contaminate rivers, soil, and water quality. The water jet, using pure water, is odorless, tasteless, and non-toxic. After atomizing the jet, 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. Therefore, it does not cause any pollution.
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Pipe Scale
(1) Categorically classified by chemical composition, they include carbonate scale, sulfate scale, silicate scale, and mixed scale, among others. The main components of carbonate scale are calcium carbonate and magnesium carbonate; the primary components of sulfate and silicate scales are calcium sulfate and silicate compounds, respectively. Mixed scale is usually a mixture of the above three types of scales.
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(2) Categorically classified by physical properties, there are two types: water scale that firmly adheres to the pot shell and pipe walls, and sediment that is loosely textured and easily detachable.
Lime scale primarily forms due to the salts of 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, about 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 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 GreenChem for Confidence
