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 Green Chemical Technology Co., Ltd. (abbreviated as Jining Green Cleaning Co.) was established in 2010 and is a specialized company in cleaning various industrial heat exchange equipment. The company possesses comprehensive business philosophy and the ability to research and develop industrial cleaning technologies, undertaking cleaning services for industrial, private enterprises, corporate chemical equipment, power plant equipment, condensers, boilers, and economizers. We also handle air conditioning cleaning, heat exchange equipment cleaning, and the cleaning of mechanical and chemical equipment. We also take on the cleaning of refrigeration and heating equipment for scale removal.
Jining Grean Cleaning Company stocks dozens of cleaning machines in various models ranging from 10mpa to 250mpa, as well as over a dozen chemical cleaning pump stations. Our primary services are to power plants, chemical factories, oil refineries, food processing plants, corporate entities, and heating equipment. The company also provides 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 achieve standardized and standardized cleaning of heat exchange equipment.
Chemical Cleaning Scale Removal Process
Recirculating Closed Loop Cleaning
Recirculating cleaning utilizes two original parallel ash pipeline lines to form a loop, creating a circulation system with the cleaning pump station. A certain concentration of acidic solution is added, which circulates within the ash water pipes for cleaning. As the acid washing reduces to a certain level, acid 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 ash pipes should form a loop during cleaning; only open-loop cleaning with a single ash pipe is allowed. The method involves connecting one end of the ash pipe to the cleaning device, continuously preparing a specific concentration of cleaning solution in the mixing tank, and then injecting it into the ash pipe either 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 the ash pipe is operating normally and not shut down, simultaneously adding a specific quantity of ash-pipe running cleaning inhibitor and pipeline descaling agent. This is an open-loop cleaning method. 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 air blockage, and 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 for the sludge conveying pipe by considering the flow rate of the grey water and the acidity. During the cleaning process, take a sample at the front end of the grey 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 grey pipe every 15 minutes to test the pH value. The cleaning can be deemed complete when the pH value reaches a certain level and remains unchanged for 30 minutes.
2. High-pressure water jet cleaning equipment
High-pressure water jet cleaning offers advantages such as high efficiency, low cost, non-damaging to workpieces, non-polluting the environment, easy 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 cavities of heat exchangers, all scaling and obstructions within the pipes are thoroughly removed, revealing the metal substrate. The high-pressure water jet, with its immense energy and ultra-sonic speed, is capable of completely destroying stubborn scaling and obstructions without causing any damage to 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.
(2) Fast Cleaning Speed: Due to the combined action of water jet scouring, wedging, shearing, and abrasion, scaling can be quickly broken and removed, making the cleaning speed several to ten times faster than traditional chemical methods, sandblasting and shot peening, 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 chemical must be rinsed off with clear water.
(3) No Environmental Pollution: Since high-pressure water jet cleaning uses pure water as the medium, it does not generate large amounts of dust like sandblasting or simple mechanical cleaning, which can pollute the atmosphere and harm health. It also does not produce large quantities 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, 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 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: scale that is firmly adhered to the pot body and pipe walls, and sediment that is loosely textured and easy to detach.
Scale is primarily formed when salts containing calcium, magnesium, and other minerals in the boiler feedwater precipitate and adhere to the metal surface upon heating. The thermal conductivity of scale is very low, about 2 to 5 times that of ordinary steel. The presence of scale on the boiler's heat transfer surface significantly worsens heat transfer efficiency and affects the boiler's performance; it can easily lead to metal material damage due to local overheating, even causing tube explosion accidents; it accelerates galvanic corrosion, causing pipeline scale corrosion, and speeding up the damage to the heating surface. Once scale forms, it should be promptly removed using mechanical or chemical methods.
Heat Exchanger and Refrigeration Equipment Cleaning - Choose GreenChem for Assurance
