详情描述
Clean various heat exchangers, condensers, industrial pipelines, boilers, and steam power equipment condensers. Glan Chemical Co., Ltd. guarantees 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 possesses comprehensive business philosophy and the capability to develop industrial cleaning technologies. We undertake cleaning services for industrial, private enterprise, and corporate chemical equipment, power plant equipment, condensers, boilers, and air preheaters. We also provide air conditioning cleaning, heat exchange equipment cleaning, and accept orders for mechanical and chemical equipment cleaning. Additionally, we handle the cleaning of refrigeration and heating equipment for scale removal.
Jining Grean Cleaning Co. offers a wide range of cleaning machines from 10mpa to 250mpa, with dozens of units available, as well as over a dozen chemical cleaning pump stations. Our primary services are for power plants, chemical factories, oil mills, food factories, corporate entities, heating equipment, and more. 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 normalized.
Chemical cleaning 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 solution of a certain acidity concentration is added, which circulates through the ash water pipes for cleaning. As the acid washing reaches a certain level, acid 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 while the system is offline, and it is complex and costly.
Pilot cleaning
No two ash pipes can form a loop during cleaning; only a single ash pipe can be used for open-loop cleaning. The method involves connecting one end of the ash pipe to the cleaning unit, continuously preparing a specific concentration of cleaning solution in the mixture tank, and then injecting it into the ash pipe continuously or intermittently. This process requires the addition of cleaning equipment during shutdown, which increases costs.
Continuous operation cleaning
The process involves continuously injecting a certain amount of acidic solution while the ash pipe is running normally without interruption. Simultaneously, a specific amount of ash pipe running cleaning inhibitor and pipeline descaling agent is added for open-circuit cleaning. The main function of the cleaning aids 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, reducing the formation of air blockages, 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 of the sludge pipeline for the addition of cleaning and corrosion inhibitor based on the sludge flow rate and acidity. During cleaning, take a sample at the front end 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 a sample 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.
2. High-pressure water cleaning machinery:
High-pressure water jetting is used for cleaning, offering advantages such as high efficiency, low cost, non-damaging to workpieces, environmental friendliness, ease of operation, and safety.
The advantages of high-pressure water technology are as follows.
(1) Superior Cleaning Quality - Our high-pressure water jet cleaning effectively removes all scale and blockages from pipes and the interior of heat exchangers, revealing the metal substrate. With immense energy and ultra-sonic speed, the high-pressure water jet is capable of completely destroying hard scale and blockages, yet has no damaging effect on the metal.
Since the pressure of the high-pressure water is less than the pressure resistance grade of metal, high-pressure cleaning will not damage the base material being cleaned.
(2) Rapid Cleaning Speed: Due to the combined crushing effects of water jet washing, wedge splitting, shearing, and grinding, scaling can be quickly broken and removed, making the cleaning speed several to ten times faster than traditional chemical methods, sandblasting and shot peening techniques, simple mechanical, and manual methods.
Additionally, 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) Non-Environmental Pollution: Since high-pressure water jet cleaning uses clean water as the medium, it does not generate large amounts of dust like sandblasting, grit blasting, 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 clean 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 using 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. 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 pipe walls, and sediments that are loose and easily detachable.
Scale is primarily formed due to the salts of calcium, magnesium, and other minerals in the boiler feed water that precipitate and adhere to the metal surface upon heating. The thermal conductivity of scale is very low, around 2 to 5 times that of ordinary steel. Scale buildup on the boiler's heating surface significantly worsens heat transfer efficiency, affecting the boiler's performance; it can easily lead to the deterioration of metal materials due to localized overheating, potentially causing tube bursting accidents; it also accelerates galvanic corrosion, leading to pipe scale corrosion and hastening the damage to the heating surface. Once scale forms, it should be promptly removed using mechanical or chemical methods.
Heat Exchanger & Refrigeration Equipment Cleaning - Choose Greentech Chemicals for Confidence
