详情描述
Clean various heat exchangers, condensers, industrial pipelines, boilers, and steam power plant condensers. GlanChem Co. offers reliable cooperation.
Jining Green Chemical Technology Co., Ltd. (简称 Jining Green 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 research and develop industrial equipment cleaning technology. It undertakes the cleaning of industrial, private enterprise, corporate chemical equipment, power plant equipment, condensers, boilers, and boiler air preheaters; as well as air conditioning and heat exchange equipment cleaning. It also handles the cleaning and descaling of refrigeration and heating equipment.
Jining Grean Cleaning Co. has dozens of cleaning machines with various models ranging from 10mpa to 250mpa, as well as over a dozen chemical cleaning pump stations. Our main services are provided to power plants, chemical factories, oil refineries, food processing plants, 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 recently 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 cleaning process:
Recirculating Closed Circuit Cleaning
Recirculating cleaning utilizes two original parallel ash removal pipelines to form a loop, creating a recirculation system with the cleaning pump station. It introduces a solution of a certain acidity concentration, which circulates and cleans within the ash water pipeline. Additionally, as the acid washing reaches 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 recirculation loop for cleaning. This process must be carried out while the system is shut down, and it is complex and costly.
Open-channel cleaning
No two gray pipes should form a loop during cleaning; only a single gray pipe should be used for open-circuit cleaning. The method involves connecting one end of the gray pipe to the cleaning unit, continuously preparing a certain concentration of cleaning solution in the solution tank, and then injecting it into the gray pipe continuously or intermittently. This process requires the addition of cleaning equipment during shutdown, which increases costs.
Continuous cleaning without shutdown
The process involves continuously injecting a specific quantity of acidic solution while simultaneously introducing a certain amount of running ash pipe cleaning inhibitor and pipeline descaler, performing an open-circuit cleaning. The primary 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: Prior to cleaning, first estimate the required acid amount based on the total scale in the pipeline. Then, calculate the acid addition rate and sludge discharge pipe flow rate for the addition of cleaning and corrosion inhibitor based on the sludge flow rate and acidity. During cleaning, take a sample at the front of the sludge pipe every 30 minutes to test 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 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 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.
The high-pressure water technology boasts the following advantages.
(1) Excellent Cleaning Quality - The high-pressure water jet cleaning for pipelines and heat exchanger bores can remove all scaling and obstructions from within, revealing the metal itself. With its immense energy and supersonic speed, the high-pressure water jet is fully capable of breaking down tough scaling and obstructions without causing any damage to the metal.
Since the pressure of the high-pressure water is 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 action of water jet washing, 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, simple mechanical, and manual 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 produce 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 generate 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 from 80mg/m³ using 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. 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: hard scale that firmly adheres to the pot shell and pipe walls, and soft sediment that is easily detached.
Lime scale primarily forms due to the salts like calcium and magnesium in the boiler feed water precipitating and adhering 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 forms on the boiler's heating surface, it significantly worsens the heat transfer efficiency and affects the boiler's performance; it can easily cause metal materials to burn due to localized overheating, even 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 Greentech Chemicals with Confidence
