Boiler occupies an important position in our country's production and life, and is widely used in textile industry, energy industry, building materials, construction industry, chemical industry, metallurgical industry, transportation and military industry. With the progress of air pollution control, a number of coal-fired boilers with substandard emissions will soon be eliminated, and it is a foregone conclusion to switch to natural gas.
In recent years, due to the increasingly strict environmental protection policy, natural gas boilers have emerged as the times require, and are favored by the majority of enterprises for their high efficiency and environmental protection. Many people don't know what the components of natural gas boilers are, and they are often blind when designing schemes. Taking the common WNS and SZS natural gas boilers as examples, this article introduces the components of natural gas boilers.
Compon...
Facing the increasingly strict environmental protection policy, how to reduce pollution and protect the environment has become the premise of sustainable development of various industries. Gas-fired boilers use clean energy as fuel, resulting in less pollution and high thermal efficiency, and are widely used in all walks of life to help major enterprises achieve green development. This article lists the common internal structure of natural gas boilers, hoping to be helpful to everyone in the sel...
The primary air fan of the boiler consists of motor, impeller, casing, air inlet box, current collector, base, regulating control system, etc.
The working process of the primary air fan: Take the medium-speed coal mill and direct-fired pulverizing system as examples, the atmosphere enters the primary air fan and is divided into two paths after being boosted by the primary air fan. One path of the atmosphere enters the primary airpipe in front of the coal mill. The other path enters the air preh...
(1) The boiler and all auxiliary equipment are installed, and all tests such as ball passing test, hydrostatic test and air tightness test are qualified.
(2) All rotating devices, feed water pumps, condensate pumps, salt solution pumps, blowers and induced draft fans for coal conveying, combustion and ash removal are qualified for trial operation.
(3) The fuel and water supply are guaranteed, the steam, water and flue gas piping system are normal, and the connection unrelated to the boiler to ...
Boiler parameters are the main indicators of boiler performance, including boiler capacity, steam pressure, steam temperature, feed water temperature, etc. Boiler capacity can be expressed by rated evaporation or maximum continuous evaporation. Rated evaporation is the amount of steam continuously produced per unit time under the specified outlet pressure, temperature and efficiency. The maximum continuous evaporation is the maximum amount of steam that can be continuously produced per unit time under the specified outlet pressure and temperature.
Manually close the fuel supply valve, stop the combustion, purge after the program enters, until the end of the purge, stop the program such as burning heavy oil, and enter the line sweeping stage before stopping the combustion, and purge with steam or light oil pipe; Generally, steam purging is used when stopping for a long time.
The installation contents of boiler body pipeline are as follows:
1) Connection between water supply console and economizer header;
2) Connection between economizer and inlet pipe from economizer outlet to drum;
3) Connection between the main pipe and branch pipe of the drum drop and each lower header of the water wall;
4) Connection of steam guide pipe between each water wall header and steam drum;
5) Connection of superheated steam pipe between outlet header of low-temperature superheater...
