June 2026  |  Heat Exchangers · Boilers · Central AC · Condensers · Pipelines  |  Author: Danyang Blue Star Cleaning, Luo Huiyong

1. Why Do Cleaning Prices Vary So Much?

Industrial equipment cleaning is not a standardized commodity — prices can range from several thousand to several hundred thousand yuan. The core variables determining price include: equipment type and specifications, scale thickness and composition, cleaning process selection, and on-site construction conditions. For the same "heat exchanger cleaning," the cost for a small plate heat exchanger versus a large shell-and-tube heat exchanger can differ by more than 10 times. Additionally, whether scaffolding is needed, the difficulty of waste liquid treatment, and schedule urgency all affect the final quotation. Reputable cleaning companies will provide a detailed quotation after a free on-site inspection, rather than quoting based solely on a phone description.

From an industry-wide perspective, the industrial equipment cleaning market lacks uniform pricing standards, and quotations from companies in different regions and of different sizes can vary by 2-3 times. Understanding price composition and influencing factors not only helps businesses budget effectively but also helps identify unreasonable low or high quotes. Low prices do not necessarily save money — the repair cost of equipment corrosion caused by omitting corrosion inhibitors can be more than ten times the cleaning fee. As a member of the China Industrial Cleaning Association, Danyang Blue Star Cleaning adheres to a standardized service process: inspect first then quote, detailed itemized lists, and quality guarantees.

From an industry-wide perspective, the industrial equipment cleaning market has yet to establish uniform pricing standards, and quotations from different regions and types of cleaning companies vary considerably. Understanding price composition and influencing factors helps businesses budget effectively and better identify unreasonable low or high quotes, avoiding losses due to information asymmetry.

2. Reference Cost Ranges for Various Equipment Cleaning

The following reference price ranges are compiled by Danyang Blue Star Cleaning based on 20 years of engineering practice. Actual quotations are subject to free on-site inspection. Costs are generally tax-inclusive total prices, covering chemical costs, labor, equipment usage, and waste liquid treatment, excluding VAT (6%).

Equipment Type Cleaning Method Reference Cost Duration
Plate Heat Exchanger (≤100m²) Disassembly + HP Water Flush ¥3,000–8,000/unit 1–2 days
Shell-and-Tube Heat Exchanger (≤200m²) Chemical Circulation Cleaning ¥8,000–20,000/unit 2–4 days
Spiral Plate Heat Exchanger Chemical Circulation Cleaning ¥6,000–15,000/unit 2–4 days
Evaporative Condenser (≥200RT) Chemical Cleaning + HP Water ¥15,000–40,000/unit 3–5 days
Power Plant Condenser Chemical Cleaning + HP Water Jet ¥30,000–80,000/unit 5–10 days
Industrial Boiler (≤20t/h) Chemical Cleaning + Neutralization/Passivation ¥15,000–40,000/unit 3–6 days
Lithium Bromide Central AC Unit Internal Cavity Chemical Cleaning + Solution Regeneration ¥20,000–50,000/set 5–8 days
Reactor (≤20m³) HP Water Jet + Chemical Cleaning ¥8,000–25,000/unit 2–5 days
Process Pipeline (per 100m) Chemical Circulation or HP Water ¥5,000–15,000/100m 2–4 days
Coke Oven Gas Primary Cooler Specialized Chemical Cleaning ¥20,000–60,000/unit 5–10 days

Note: The above are 2026 reference price ranges for East China. Costs for large equipment, severe scaling, or complex conditions may exceed the upper limits. VAT 6% charged separately.

3. What Factors Influence Cleaning Costs?

1. Scale Thickness and Composition — The most direct influencing factor. Carbonate scale (water scale) is relatively easy to remove with low chemical costs; silicate scale requires fluoride complex cleaning with chemical costs 2-3 times higher; tar and polymer scale require specialized solvents and longer working hours. The thicker the scale, the more chemical consumption and cleaning time multiply. Thin scale below 1mm can be removed in a single cleaning; thick scale above 2mm may require multiple staged cleaning cycles.

2. Equipment Specifications and Structure — Larger heat transfer area, longer tube bundles, and narrower channels increase cleaning difficulty and labor hours. Disassemblable equipment (plate heat exchangers) has high cleaning efficiency with labor cost as the main component; non-removable equipment (spiral plate, some shell-and-tube types) requires circulation cleaning with higher chemical consumption and increased pump station equipment rental costs.

3. Cleaning Process Selection — HP water-only cleaning has the lowest cost, suitable for disassemblable equipment; chemical-only cleaning is mid-range, suitable for non-removable equipment; chemical + HP water combined process yields the best results but at the highest cost. Online cleaning without shutdown can eliminate production downtime losses but requires higher process sophistication, with correspondingly higher technical service fees.

4. Material Protection Requirements — Copper tubes, stainless steel, galvanized coatings, etc. require specialized corrosion inhibitor protection. For example, galvanized coating protection on evaporative condensers requires a BTA+MBT+Sodium Molybdate triple-inhibitor system, with inhibitor costs accounting for 15%-25% of chemical expenses. Cleaning without corrosion inhibitor protection may have a low quotation but carries extremely high equipment corrosion risk.

5. On-site Construction Conditions — The floor level where the equipment is located, whether surrounding space meets circulation system setup requirements, distance to waste liquid discharge pipes, whether scaffolding or cranes are needed — all increase construction difficulty and costs. Confined space operations also require additional safety protection measures.

6. Region and Service Radius — East China (Jiangsu, Zhejiang, Shanghai, Anhui) has relatively transparent and reasonable pricing due to industrial concentration and sufficient service provider competition; remote areas may see 20%-50% surcharges due to travel and transportation costs. Danyang Blue Star Cleaning primarily serves the East China region, and localized services effectively control costs.

4. Quotation Process and Pitfall Avoidance Guide

Standard process of reputable cleaning companies:

① Initial phone/online consultation to understand basic equipment information and cleaning requirements → ② Engineer conducts free on-site inspection, testing scale type and thickness, assessing construction conditions → ③ Detailed technical proposal and quotation provided (with itemized breakdown: chemical costs, labor, equipment, waste liquid treatment, VAT) → ④ Formal contract signed after both parties confirm the plan and price → ⑤ Construction arranged per contract terms, acceptance report provided upon completion

Pitfall avoidance reminders:

Quoting based solely on phone description — Providing a price without on-site equipment inspection means either inflated pricing or later add-on charges. Reputable companies always inspect first, then quote.

Quotations significantly below market price — May involve substandard chemicals or omission of corrosion inhibitors, posing high risk of equipment corrosion. Chemical cleaning's chemical costs are rigid and cannot be bottomlessly squeezed.

No detailed quotation provided — Reputable companies provide itemized lists (chemical names and quantities, labor hours, equipment shifts, waste liquid treatment method), not a vague verbal figure.

Refusing to disclose chemical composition citing "proprietary formula" — Exact ratios may be confidential, but at minimum the type of cleaning agent used should be disclosed (e.g., Sulfamic Acid system or Ammonium Bifluoride system), as this relates to equipment material compatibility.

Clarify whether tax and waste liquid treatment are included — VAT 6% and hazardous waste treatment costs may be calculated separately; confirm the total price before signing. Discharging untreated waste liquid is illegal; reputable companies always include waste liquid treatment.

Request cleaning quality guarantee — Reputable companies include a warranty period in the contract (typically 6-12 months). Equipment failures during the warranty period caused by cleaning quality issues should be the cleaning contractor's responsibility.

Require a completion acceptance report — After cleaning, detailed acceptance data should be provided: before/after comparison photos, residual scale thickness test data, corrosion rate coupon test results, equipment operating parameter recovery status. Reputable companies treat acceptance as an essential step of project delivery, not just verbally saying "it's cleaned."

Check company qualifications and experience — Prioritize China Industrial Cleaning Association member companies with 10+ years of industry experience. You can request to see cleaning case studies of similar equipment and customer reviews. Danyang Blue Star Cleaning has been established for over 20 years, completing 500+ enterprise client equipment cleaning projects, and can provide reference cases from the same industry.

5. Price Differences Among Different Cleaning Methods

Industrial equipment cleaning has three main technical approaches, with different pricing and applicable scenarios:

Chemical Cleaning — Dissolves fouling through chemical reaction between cleaning agents and scale. Advantages: thorough cleaning, no dead zones, covers all internal surfaces of equipment; disadvantage: requires chemical waste liquid treatment. Suitable for non-removable equipment such as shell-and-tube heat exchangers, boilers, reactors, and process pipelines. Chemical costs account for a significant portion of the fee (30%-50%), and corrosion inhibitors are mandatory and cannot be omitted. Reference unit price: heat exchangers ¥80-150/m², boilers ¥100-200/m².

High-Pressure Water Jet Cleaning — Uses the physical impact force of 500-2800 bar ultra-high-pressure water jets to strip scale layers. Advantages: zero chemical additives, environmentally safe, no waste liquid treatment costs; disadvantage: cleaning blind spots exist for complex internal equipment structures (e.g., behind baffle plates). Suitable for directly accessible cleaning surfaces such as plate heat exchanger plate-by-plate flushing, pipeline interiors, and reactor inner walls. Costs are primarily labor and equipment shifts, with very low chemical costs. Reference unit price: ¥50-120/m² (depending on working pressure and difficulty).

Chemical + HP Water Combined Cleaning — First chemically softens and dissolves the main scale body, then uses HP water jets to remove residues and tackle dead zones. Best results, the preferred solution for large equipment and stubborn composite scale layers, but total cost is 30%-60% higher than single methods. Suitable for critical equipment such as power plant condensers, evaporative condensers, and coke oven gas primary coolers. Combined process unit pricing must be customized based on specific equipment conditions.

Online Cleaning Without Shutdown — Completes cleaning while equipment is in normal operation, eliminating the need for shutdown and cooling, significantly reducing production losses. Suitable for heat exchangers and circulating water systems where temporary shutdown is impractical. Due to higher process requirements and stricter risk control, technical service fees are 50%-100% higher than conventional cleaning. However, for continuous production enterprises, the saved shutdown losses far exceed the increased cleaning cost.

6. Typical Case Cost References

Case 1: Chemical Plant Shell-and-Tube Heat Exchanger Cleaning
Equipment parameters: Heat transfer area 180m², carbon steel shell/copper tubes, carbonate scale thickness 1.5mm
Cleaning protocol: Sulfamic Acid + Citric Acid chemical circulation cleaning + BTA copper tube corrosion inhibitor protection
Total cost: Approximately ¥15,000 (chemicals ¥5,200 + labor & equipment ¥8,000 + waste liquid treatment ¥1,800)
Duration: 3 days | Post-cleaning heat transfer efficiency restored to 96%, annual steam cost savings approximately ¥80,000

Case 2: Food Plant Plate Heat Exchanger Disassembly Cleaning
Equipment parameters: BR0.5 plate heat exchanger, 80 plates, water scale + light biofouling
Cleaning protocol: Disassembly → HP water jet plate-by-plate flushing (500bar) → Sanitizing wash → Reassembly & pressure test
Total cost: Approximately ¥4,500 (labor ¥2,500 + gasket replacement ¥1,200 + miscellaneous ¥800)
Duration: 1.5 days | Flow rate restored to 98% of design value, meeting food hygiene standards

Case 3: Power Plant Condenser Combined Cleaning
Equipment parameters: N-3500 type, titanium tubes, heat transfer area 3500m², silicate scale + iron scale composite
Cleaning protocol: Ammonium Bifluoride composite formula chemical cleaning + 800bar HP water jet tube-by-tube flushing
Total cost: Approximately ¥55,000
Duration: 8 days | Condenser vacuum restored to normal, power generation coal consumption reduced by 3.2g/kWh, annual standard coal savings approximately 1,200 tons

Case 4: Lithium Bromide Central AC Unit Cleaning + Solution Regeneration
Equipment parameters: Cooling capacity 2 million kcal/h, 8 years operation without cleaning, cooling capacity degraded 35%
Cleaning protocol: Generator/Absorber/Condenser/Evaporator cavity fluoride chemical cleaning + lithium bromide solution regeneration treatment
Total cost: Approximately ¥38,000
Duration: 6 days | Cooling capacity restored to 97% of rated value, annual electricity savings approximately ¥185,000, payback period 2.5 months

7. Spend on Cleaning, Save on Energy

Many businesses hesitate about cleaning costs because they view cleaning as an "extra expense" rather than an "energy-saving investment." In reality, cleaning is one of the highest ROI projects in industrial equipment operation and maintenance.

Real ROI data: Taking a 2 million kcal/h lithium bromide unit as an example — cleaning cost approximately ¥38,000, post-cleaning annual electricity savings approximately ¥185,000, payback period only 2.5 months. Thereafter, the annually sustained energy cost savings are pure profit. A 180m² shell-and-tube heat exchanger, cleaning cost ¥15,000, annual steam cost savings approximately ¥80,000, payback period 2.3 months. A power plant condenser, cleaning cost ¥55,000, annual standard coal savings approximately 1,200 tons (equivalent to approximately ¥600,000), payback period only 1 month.

The real cost of not cleaning: Equipment not cleaned → energy consumption continuously rising (5%-10% annually) → under-deposit corrosion accelerates → equipment prematurely scrapped and replaced (hundreds of thousands to millions of yuan). More hidden losses include: product quality fluctuations due to reduced heat transfer efficiency, extended production cycles, and delivery delays caused by unplanned downtime — these indirect losses often far exceed direct energy waste.

From a full lifecycle cost perspective, regular cleaning maintenance costs "small money" while saving "big money" on equipment investment and energy expenditure. This principle is exactly the same as changing a car's engine oil — skip a few hundred yuan in maintenance, and eventually you'll spend tens of thousands on an engine overhaul.

Danyang Blue Star Cleaning's maintenance recommendations:

• General industrial equipment: Schedule regular cleaning maintenance every 1-2 years

• Severe fouling or poor water quality conditions: Every 6-12 months

• New construction/newly installed equipment: Arrange a pre-commissioning cleaning before startup to remove welding slag, rust, and oil

• Establish cleaning maintenance records, track heat transfer efficiency and energy consumption changes, and scientifically determine cleaning intervals

• Seasonal equipment (e.g., central AC): Arrange inspection maintenance before each cooling and heating season

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