Clean various heat exchangers, condensers, industrial pipelines, boilers, and steam power plant economizers. GlanChem partnership ensures reliability.
Jining Green Chemical Technology Co., Ltd. (abbreviated to Jining Green Cleaning Co.) was established in 2010 and specializes in cleaning various industrial heat exchange equipment. 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, power plant condensers, boilers, and boiler air preheaters. We also provide air conditioning cleaning, heat exchange equipment cleaning, and accept orders for mechanical and chemical equipment cleaning. Additionally, we handle cleaning and descaling of refrigeration and heating equipment.
Jining Green Clean Company stocks 1
Chemical cleaning descaling process:
Multiple models of cleaning machines with recirculating closed-loop cleaning from 0MPa to 250MPa, over ten sets of chemical cleaning pump stations. Mainly serving enterprises: power plants, chemical factories, oil refineries, food factories, public institutions, heating equipment, etc. 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, enabling the cleaning of heat exchange equipment to be standardized and regulated.
Recirculation cleaning utilizes two original parallel deslagging pipelines to form a circuit, which, along with the cleaning pump station, creates a recirculation system. A solution of a certain concentration of acidity is added, allowing for the continuous recirculation and cleaning of the slurry pipeline. As the acid cleaning process decreases to a certain level, acid is replenished continually. For short-distance single slurry pipelines, if conditions permit, a temporary pipeline can be installed to form a recirculation circuit for cleaning. This process must be carried out while the system is shut down, and it is complex and costly.
Breakbulk Cleaning
No two ash pipes should form a loop during cleaning; only a single ash pipe should be used for open-circuit 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 blending tank, and then injecting it into the ash pipe continuously or intermittently. This process requires additional cleaning equipment during shutdown, resulting in higher costs.
Continuous Operation Cleaning
The process involves continuously injecting a certain amount of acidic solution while operating, without stopping the normal ash transportation through the ash pipes. Simultaneously, a specific amount of ash pipeline cleaning inhibitor and pipeline cleaning descaler is injected for operation. This is an open-circuit cleaning. 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, 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 descaling agent and pipeline cleaner based on the sludge water 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 jet cleaning offers advantages such as high efficiency, low cost, non-damaging to workpieces, environmental protection, 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 heat exchanger bores effectively removes all scale and blockages inside, revealing the metal substrate. The high-pressure water jet, with its immense energy and ultra-sonic movement, can completely destroy tough scale and blockages without causing any damage to the metal.
High-pressure water cleaning will not damage the base material being cleaned, as the pressure is less than the compressive strength grade of the metal.
(2) Rapid Cleaning Speed: Due to the combined abrasive actions of water jetting, wedging, shearing, and grinding, scale can be quickly dislodged and removed, making the cleaning process several to tens of times faster than traditional chemical methods, sandblasting, ball-blasting, 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, grit blasting, or simple mechanical cleaning, which can pollute the atmosphere and harm health. It also does not generate a significant amount 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, the emitted jet 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.
Pipe Scale
(1) Classified by chemical composition, they can be categorized into carbonate scale, sulfate scale, silicate scale, and mixed scale, among others. 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 is firmly adhered to the pot shell and tube walls, and sludge that is loosely textured and easily detached.
Lime scale primarily forms due to the salts like 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 significantly worsens the heat transfer efficiency and affects the boiler's performance; it can easily cause metal materials to burn out 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 and Refrigeration Equipment Cleaning - Choose GreenChem for Reliability
