What are the contents of boiler external inspection?
The external inspection of a boiler is one of the important contents of daily maintenance and safety management of the boiler. Its purpose is to ensure the safe operation of the boiler and prolong its service life. The specific reasons are as follows:
1. Timely detection and repair of problems: By inspecting the exterior of the boiler, problems such as pipe leaks, chimney blockages, and malfunctioning safety valves can be detected in a timely manner. Timely repair of these problems can prevent the occurrence of larger faults and accidents in the boiler.
2. Accident prevention: External inspection of the boiler can identify potential safety hazards in the boiler, and timely measures can be taken to repair and handle them, preventing accidents and ensuring the safety of personnel and equipment.
3. Improved boiler efficiency: By inspecting the exterior of the boiler, problems can be detected in a timely manner, and timely repairs can improve the efficiency of the boiler, reduce energy waste, and lower the production costs of enterprises.
4. Prolonging the service life of the boiler: Regular external inspection of the boiler can detect problems in a timely manner, and timely repairs can prolong the service life of the boiler, reducing the maintenance and replacement costs of equipment for enterprises.
Therefore, external inspection of a boiler is very important, as it can ensure the safe operation of the boiler and prolong its service life, which is of great significance to the production and development of enterprises.

The external inspection of a boiler mainly includes the following aspects:
1. Inspection of the shell and pipelines: Inspect the boiler's shell and pipelines to check for cracks, deformations, rust, oil leaks, and other issues, and whether there are any leaks.
2. Inspection of flues and chimneys: Inspect the boiler's flues and chimneys for smoke accumulation, chimney backdraft, blockages, detachment, air leakage, and other issues.
3. Inspection of fuel and gas pipelines: Inspect the boiler's fuel and gas pipelines for leaks, corrosion, damage, and other issues, and check for any safety hazards.
4. Inspection of valves and safety devices: Inspect the various valves and safety devices of the boiler for damage, malfunction, and whether they can operate normally.
5. Inspection of electrical systems: Inspect the boiler's electrical systems for short circuits, electrical leakage, and other issues, and check for any safety hazards.
6. Cleaning and maintenance: Clean and maintain the boiler, including removing ash and water from the inside of the boiler, replacing vulnerable parts such as burners and heat exchangers, to ensure the normal operation and safety performance of the boiler.
It is important to note that external inspection of a boiler should be conducted regularly and strictly in accordance with relevant safety regulations and standards to ensure the safe operation of the boiler and the safety of personnel.
-
SZS series gas-fired (oil-fired) steam boilerLive Chat2-110 t/h1.25-5.3 MPa
-
SHX coal-fired CFB (circulating fluidized bed) steam boilerLive Chat10-35 t/h1.25-2.5 MPa
-
DZL series biomass-fired steam boilerLive Chat2-10 t/h1-2.5 MPa
-
Email us
-
WhatsApp: +86 18861589035
WeChat: +86 13506150756
Live Chat

-
IntroductionIn Wuhan, Hubei Province, Hubei Hanjia New Materials Co., Ltd. and Wuhan Yiqingsheng Building Materials Co., Ltd. required thermal energy equipment for autoclave curing and continuous production-line heating, respectively. Based on the production processes, fuel conditions and site requirements of the two companies, ZOZEN Boiler supplied an 8 t/h DZL series biomass steam boiler and a 7.2-million-kcal YWW series biomass thermal oil boiler. The two projects use different heat-transfer ...03 Nov 2026 -
At Guizhou Haocaitou Food Co., Ltd. in Tongren, Guizhou Province, a ZOZEN WNS series gas-fired steam boiler has been operating for five years as part of the company’s steam supply system. The WNS10-1.25-Q boiler, with a rated capacity of 10 t/h, serves as an important heat source for food production. In recent feedback, the customer noted that matching the equipment configuration to production requirements, along with ease of daily operation and maintenance, were key considerations when se...27 Oct 2026 -
From beverage and convenience food production to rice processing, boiler solutions should be selected according to fuel availability, steam demand and site conditions. Steam is commonly used for heating, sterilization and equipment cleaning in food processing. However, different products, production line configurations and fuel conditions create different boiler requirements. In addition to rated steam capacity, food manufacturers need to consider steam pressure, fuel supply, equipment layout a...20 Oct 2026











