详情描述
Clean various heat exchangers, condensers, industrial pipelines, boilers, and steam power plant equipment condensers. Glan Chemical Co., Ltd. offers reliable cooperation.
Jining Green Chemical Technology Co., Ltd. (简称 Jining Green Cleaning Co.) was established in 2010 and specializes in industrial heat exchange equipment cleaning. The company boasts comprehensive business philosophy and the capability to develop industrial cleaning technologies. We undertake cleaning services for industrial, private enterprise, and corporate chemical equipment, power station equipment, condensers in power plants, boilers, and economizers. We also handle air conditioning and heat exchange equipment cleaning, as well as cleaning for machinery and chemical equipment. In addition, we provide cleaning services for refrigeration and heating equipment to remove scale.
Jining Green Cleaning Company stocks dozens of cleaning machines ranging from 10mpa to 250mpa, and over a dozen chemical cleaning pump stations. Our primary services are 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 design solutions 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 to standardize and normalize the cleaning of heat exchange equipment.
Chemical cleaning descaling process:
Recirculating Closed Loop Cleaning
Recirculation cleaning utilizes two original parallel deslagging pipelines to form a circuit, which together with the cleaning pump station constitutes a recirculation system. A solution of a certain acidity is added, and it circulates through the sludge water pipelines for cleaning. During the acid washing process, when the acidity level drops to a certain point, acid is continuously replenished. For short-distance single sludge water pipelines, if conditions permit, a temporary pipeline can be laid to form a recirculation circuit for cleaning. This process must be carried out during shutdown, is complex, and is costly.
Breakout Cleaning
No two gray pipes can form a loop during cleaning; only single-pipe open-loop cleaning is allowed. The method involves connecting one end of the gray pipe to the cleaning unit, continuously preparing a certain concentration of cleaning solution in the mixing 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 certain amount of acidic solution while operating, without interrupting the normal ash transportation through the ash pipe. Simultaneously, a specific amount of ash pipe cleaning inhibitor and pipeline descaling agent is injected for operation. This is an open-loop cleaning process. The main 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 enhancing 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 amount based on the total scale in the pipeline. Then, calculate the acid addition rate and the flow rate for the sludge conveying pipeline by considering the flow rate of the gray water and the acidity. During cleaning, collect a sample at the front end of the gray 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 gray 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 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 - The high-pressure water jet cleaning of pipelines and the internal cavities of heat exchangers can thoroughly remove scale and blockages from inside the pipes, revealing the metal substrate. The high-pressure water jet, with its immense energy and supersonic speed, can completely destroy hard scale and blockages, yet it has no destructive effect on 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 base material being cleaned.
(2) Fast Cleaning Speed: Due to the combined effects of jet washing, wedging, shearing, and grinding, scale 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.
Additionally, parts cleaned with high-pressure water jetting do not require a secondary cleaning process; however, after chemical cleaning, the surface must be rinsed with clear 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 air 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, it can also reduce the dust concentration in the work area, lowering atmospheric dust levels from 80mg/m³ with other methods to below the national safety standards, thus causing no pollution.
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) Categorized by physical properties, there are two types: scale that is firmly adhered to the pot shell and tube walls, and sediment that is loosely textured and easily detached.
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, approximately 2 to 5 times that of ordinary steel. When lime scale accumulates on the boiler's heating surface, it significantly worsens 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 & Refrigeration Equipment Cleaning - Choose Green Chemicals for Reliability
