Gas boilers include gas hot water boilers, gas heating water boilers, and gas steam boilers, among which gas heating water boilers are also known as gas heating and gas bathing boilers. Gas boilers, as the name implies, refer to boilers that use gas as fuel. Compared to oil-fired and electric boilers, gas boilers are the most economical choice, which is why most people opt for gas boilers as equipment for steam, heating, and bathing.
Gas boilers include models such as the KS-Q Gas Water Boiler, CLHS (CWNS) Gas Hot Water Boiler, and LHS (WNS) Gas Steam Boiler. Among them, gas hot water boilers encompass both gas heating boilers and gas bathing boilers. With the completion of the national "West-to-East Gas Pipeline" project, gas boilers have gradually become the first choice for many.
The "Special Equipment Safety Supervision Regulations" define boilers as equipment that utilizes various fuels, electricity, or other energy sources to heat the contained liquid to certain parameters and output thermal energy. The scope includes pressure steam boilers with a volume of 30L or more; pressure hot water boilers with an outlet water pressure of 0.1MPa or more (gauge pressure), and a rated power of 0.1Mw or more; and organic heat carrier boilers. [1]
Burner
The construction of the gas burner consists of the following 5 systems:
1. Air Distribution System
The function of the air supply system is to deliver air with a certain wind speed and volume into the combustion chamber, its main components include: housing, fan motor,
Fan impeller, air gun nozzle, air door controller, air door dampers, cam adjustment mechanism, diffuser disk.
2. Ignition System
The function of the ignition system is to ignite the mixture of air and fuel, with main components including: the ignition transformer, ignition electrode, and high-voltage electrical cable. A relatively safe type of ignition system is the electronic pulse ignition, widely used by manufacturers like Zhuoyi Energy-Saving for gas boilers. It is convenient and time-saving, requiring only a finger press, and boasts high safety, preventing accidents caused by unexpected extinguishing. In case of a shutdown, the control system can promptly close the solenoid valve to cut off the gas supply.
3. Monitoring System
The function of the monitoring system is to ensure the safe and stable operation of the burner, with main components including flame sensors, pressure sensors, and temperature sensors (as shown in the following illustration).
4. Fuel System
The function of the fuel system is to ensure the fuel required for the burner to burn. The main components of a fuel oil burner's fuel system include: fuel pipes and connectors, fuel pumps, solenoid valves, nozzles, heavy oil preheaters. For gas burners, the main components are: filters, regulators, solenoid valve groups, ignition solenoid groups, and fuel butterfly valves.
5. Electric Control System
The electrical control system serves as the command and coordination center for the aforementioned systems, primarily utilizing programmable controllers as the main control components. Different programmable controllers are paired with various burners, with common types including the LFL series, LAL series, LOA series, and LGB series. The main distinction among them lies in the varying durations of the program steps.
I. Overview
This is a quick-installation horizontal internal combustion three-pass fire-tube boiler. It features an offset furnace tube semi-wet-back structure, where high-temperature flue gases sequentially wash the second and third pass flue tubes, then排出 through the rear smoke chamber and chimney into the atmosphere. The boiler is equipped with removable front and rear smoke box lids for easy maintenance. The boiler is fitted with world-renowned burners and incorporates advanced technologies such as automatic proportional combustion adjustment, automatic water regulation, programmable start/stop, and automatic operation. It also features high and low water level alarms, as well as automatic protection functions for extremely low water levels, over-pressure, and flameout. This type of boiler is characterized by its compact structure, safety, ease of operation, quick installation, low pollution, low noise, and high efficiency, and is widely used in industrial steam for enterprises, hotels, office buildings, residential buildings, and other facilities, as well as for domestic heating and steam.
Our company's developed light oil boiler series utilizes internationally advanced automation levels.Italian ImportedThe fully automatic burner, as the primary combustion equipment, is controlled by a more advanced combustion program controller. It can achieve all the necessary functions for the normal combustion of fuel boilers, including automatic shutdown in normal, accident, and emergency conditions. Equipped with a corresponding water level controller and pressure proportional regulator, it ensures low and high water level indication, overpressure indication, and adjustment, maintaining water levels within the normal range and steam pressure within the allowable fluctuation range. It also features a protective shutdown indication in cases of extremely low water levels or overpressure.
II. Key Features
1. The overall structure is rational, compact, and belongs to the boiler island type, meeting the requirements for quick assembly and factory shipment. The product is composed of three main parts upon leaving the factory: the boiler main unit, chimney, and pipeline system. Both the main unit and the chimney sections have been fully manufactured in the factory. The pipeline valves and instruments for the main unit are pre-installed. Upon arrival at the site, simply assemble the main unit and chimney, connect the gas, power, and water supply lines, and the trial operation can be conducted. This significantly reduces the installation period while ensuring product quality.
2. Advanced design performance. The boiler's main unit is an integral structure, with the burner mounted on the front smoke box cover, and the main body primarily arranged with the heating surface and combustion chamber sections. It features a reasonable and compact structure, low steel consumption, a biased corrugated furnace tube, and an insulation layer made of new lightweight insulating materials. The outer packaging is made of color-coated thin plates, with the shape packaged as a rectangular prism, which gives the boiler an obvious advancement in performance, weight, structural dimensions, and aesthetic appearance compared to domestic products of the same capacity. The water supply equipment for the boiler is configured on the boiler base to the right of the boiler, making it an integral part of the main unit without requiring an additional foundation.
3. The water cycle is simple, the pressure component structure is rational, and it can operate safely while ensuring water quality.
4. Complete auxiliary machine set, with advanced comprehensive technical performance.
