gas fired steam boiler palm oil production line
The price of gas boiler characteristics and maintenance of gas boilers Products: gas boiler includes a gas water boiler, gas hot water boiler, gas fired steam boiler palm oil production lines, gas hot water boiler which is also known as gas heating boilers and gas boilers bath, as the name suggests refers to gas boiler it is the fuel for the gas boilers, gas boilers and oil-fired boiler, electric boiler compared to the most economical, most people have opted for a gas boiler as steam, heating, boiler equipment for bathing. Gas boiler Features: 1, large font display temperature, easy to grasp and boiler operating conditions of the system, the water temperature can be freely set from 10 ℃ to 90 ℃, automatic boiler or heating system to provide users with life, bath with hot water. 2, the control system controls the circulation pump start and stop in accordance with the temperature of boiler water, boiler water circulating pump starts when the water reaches an upper limit temperature, lower than the hot water circulation pump stops when the water temperature lower limit. 3, three horizontal gas bath boiler return all wet back structure, using a large furnace, rough smoke tube design, increased furnace radiation heat absorption, the effective energy saving. Using threaded pipe and waveform furnace, greatly enhanced heat transfer effect, greatly saving fuel consumption. 4, while the machine is equipped with thermal protection (ultrahigh temperature furnace, the burner is automatically stopped and an alarm buzzer, the second over protection (the boiler shell temperature exceeds 105 deg.] C, the secondary circuit is automatically cut off), the lack of anti-dry protection of water (when water is lower than the low water level of the furnace, the boiler is stopped and an alarm beep), a boiler leakage protection (the control system detects electrical leakage, short circuit, automatically cut off the power) .5, according to the boiler pressure design , no pressure in the boiler state, there is no safety hazard with advanced multi-layer insulation centrifugal glass wool, steel for packaging famous white color, heat loss, beauty care and anti-rust gas boiler: 1, gas-fired boiler during operation Note the following points: (1) does not allow pressurized gas boiler furnace combustion or smoke, because the manhole cover easy to burn stoker; not on the water bottom (2) gas boiler ground surface to prevent corrosion .2 moisture, gas boiler runs every 2-3 weeks, should be checked once a .3, gas boiler run after every 3-6 months, should conduct a comprehensive inspection shutdown maintenance: (1) internal and external gas boiler inspection, such as by Weld parts, steel inside and outside for corrosion phenomenon, if found serious deficiencies should be repaired, if the repairs were not serious defects also until the next shutdown, if there is suspicious, but does not affect safety, should make a record for future reference; (2) can be checked and the water boiler primer coating to prevent corrosion .4, gas boilers and boiler paint base at least once a year .5, often of unused gas boiler maintenance methods: dry and wet two kinds, one month shutdown, care should be taken dry method, wet shutdown can be less than one month regimen (1) dry regimen: after shutdown of the furnace to the discharge water will completely remove the dirt inside , rinse, drying in the furnace with Weihuo (be careful not to fire), and then the bulk quicklime 10-30 millimeters in diameter installed sub-plate, placed in the drum, without contacting the metal with lime, quicklime by weight, calculated to the drum volume 8 kg per cubic meter, then all manholes, hand holes pipe valve closed, checked every three months, such as lime ingredients like broken, i.e. the need to replace the boiler should be re-run Quicklime and disk unloading (2) Wet regimen: After Shutdown of the water discharge furnace, the inside completely remove the dirt, rinse, refill treated water to the full, the water was heated to 100 deg.] C oven, so that the water exhaust gas out of the furnace, and then close all valves, cold climates where moisture can not support the use of law, so as not to damage the boiler furnace water freezes.
The main structure of the internal combustion boiler detail: In the combustion boiler is a main flue of all, combustion residue after combustion of the fuel without directly heating the surface of the mixed working fluid is heated and the flue gas, together with steam as the working fluid work output of method of operation, high efficiency boilers. The internal combustion boiler thermal industry is part of the production of steam. Next to be described in detail the structure of the main combustion boiler: a boiler shell, the pressure receiving member is an important potshell shell type boiler, it is the role space for storing water and soda and steam are separated place. In shell type boiler, boiler shell placed combustion chamber (furnace) and the heating surface, the effect of which was underway boiler body. Potshell cylindrical container is made of welded steel sheet, we split it into three parts: the cylindrical portion is an intermediate portion, both ends of the tubesheet portion is simplified, and some people open end of the tube sheet hole. Simplified by the two or more tube sections butt weld made, the minimum length of the barrel section is not less than 300mm. When the boiler is greater than the inner diameter of the shell boiler 1000mm. Simplified access potshell wall thickness should be not less than 6mm, inner diameter of the shell when the pot is not more than 1000mm, simplified access to the boiler shell thickness is not less than 4mm. Both sides of the drum and the tube plate is connected to the boiler shell simplified, many small holes drilled in the tube plate, through the hole in the fire tube. Front tube plate further defines a larger hole furnace connected. There are many simple pan upper takeover, which takes over a main steam valve, safety valve, manometer, water gauge and the like. Pan with water separator housing interior, surface sewage, and the like into the water. 2, furnace, furnace boilers are specific shell type pressure element, inside a furnace combustion chamber, the outer coating from the boiler water. Furnace outside the furnace by the water pressure. Therefore, it is the worst working conditions the pressure element shell type boiler. Because the furnace by the high temperature flame burning, the temperature is higher than the temperature of the boiler shell, its thermal expansion problems particularly prominent in the boiler fuel, the oil combustion temperature is high, a high furnace thermal strength, severe temperature changes, there is required furnace good performance thermal expansion and contraction. General furnace are made waveform. And some shell type boiler or furnace to a flat circular flat circular shape Singapore. 3, fire tube, the main fire tube boiler heating surface of the boiler shell. Generally use is made of boiler steel φ51mm ~ φ102mm, the front and rear tube plate by welding or play mode coupled expanded joint, when Expansion, connecting the fire tube and inflation port after inflation tube plate using 90 ° pull side contact. Front and smoke at a relatively low temperature plate, inflation bell mouth pull side can be connected. When a welded connection, in order to ensure sufficient bonding strength, and the tube end is not overheating, the tube end projecting required length of the tube plate is not less than the wall thickness plus 1.5mm, but not in excess of the connecting seam 5mm. Imported oil-fired boiler, and some in the furnace exit, fire tube to tube sheet welding connection. But in other parts of the fire tube to tube plate with flange 90 connected to the expander. Effect is produced outside the smoke tube of the tube furnace heated by flue gas through the combustion water in the tube, in order to gradually generate steam, also called "squib." Generally have the following forms: a straight barrel, also called "light pipe", the advantage of a small light pipe smoke resistance, the disadvantage is fouling the inner pipe easily. Heat transfer effect is also poor. Light pipes are typically seamless steel tube, but also useful for welding boiler tube inlet. Another is a threaded tube, which is pressed inwardly out of a recess in the seamless pipe, it seems like a thread, so called "threaded pipe." The advantage is that the flue gas flow within the tube, changing the flow cross-sectional area, the flow velocity of flue gas is also changed and swirl effect. Therefore, it is better than the light of the heat transfer tube and hard fouling. The disadvantage is greater than the resistance through the light pipe has a certain velocity before the flue gas swirl effect more obvious. The third is to add steel wire or steel wire to the formula Fu light tube. It is a light pipe inside the tube into a tube-type inflammation oxidation resistance good steel wire, inside the flue gas flow at the fire tube, steel wire plays a role similar to the threaded tube. If you want to fire tube cleaning, can easily be removed steel wire, steel wire and light pipe are more convenient cleaning. This form of fire tube easy to manufacture, simple maintenance. In order to maintain the strength of the tube plate, according to strength calculation, be reinforced hole in a predetermined position region of the tube plate. Specific fire wall is thickened, with a thick-walled welded tube to tube plate, so that both as reinforcement, acting also as heating surface, the thick-walled tubes referred to as "bracing tube."
Henan newly installed gas boiler 1 what kind of work before starting. Henan newly installed gas boiler before starting what should be done? These include: the tightness of (1) hydrostatic test (overpressure test), test pressure member. (2) Trial and various auxiliary electric door damper check. (3) oven. Water inside wall of the furnace and gas water boiler tubes Henan removed. (4) cooking stove and pickling. Remove grease deposits in the evaporator heating surface system, rust, oxide scale and corrosion products, and other like with lye and acid. (5) furnace aerodynamic field test. (6) flushing pipe. Henan boiler with gas flushing a self-generated steam, the second steam duct heteroaryl residue. (7) check security doors. 2. Henan gas boiler before start time and temperature of water on what regulations? why? Water speed before the start of Henan gas boiler should not be excessive, winter generally less than 4h, other seasons 2 ~ 3h, especially in the beginning of the water should be slow. Cold boiler water temperature is generally not more than 100 ℃, so that the temperature difference between the feedwater entering the drum drum wall temperature is not more than 40 ℃. Henan not completely cooled gas boiler drum water temperature, mutatis mutandis, wall temperatures, generally the difference should be controlled within 40 ℃, it should slow down or speed water. The reasons are: (1) Since the thick-walled drum, slow expansion, the wall of the tube is connected to the drum wall is thin, expanded rapidly. If the inlet water temperature is too high or too fast, uneven expansion will cause the weld cracks occur, resulting in damage to the equipment. (2) when the water supply enters the drum, the drum is always in contact with the first half wall, if the water temperature and the drum wall temperature difference is too large, the influent fast speed, on the drum, the lower wall, the inner and outer wall inter will have a greater expansion difference, caused a large drum to additional stress, causing deformation of the drum, when severe cracks.
Since December, the working out of Chishui City in Guizhou Province coal-fired boiler entered a crucial stage, ensure the completion of this year, the provincial environmental protection department issued a coal-fired boiler out of the task on time.
Chishui City Market Supervisory Authority on December 11 officially began governance, Union City Environmental Protection Bureau, City Comprehensive Administrative Law Enforcement Bureau, called the slow progress in phase-out coal-fired boilers companies and gas companies to warn interviews. It requires companies to plan prescribed time node coal-fired boiler renovation project, inverted construction, to ensure the smooth progress of renovation project.
From December 10 to 17, Market Authority law enforcement officers will be on hand daily supervision, dispatching five nine companies renovation project and construction schedule boilers, coal-fired boiler to ensure complete phase-out schedule.