Seller 1 ton Energy Saving boiler Vietnam

Test gas steam seller 1 ton energy saving boiler vietnam steam boiler when using gas belongs to the mechanical equipment, we all know, machinery and equipment, will have some problems in use for some time, can sometimes affect the normal conduct of our work, so we have to use it in inspection, now, we come to understand some of the content simply need to pay attention when gas boiler inspection. In fact, maintenance of gas boiler maintenance and inspection of coal-fired boilers essentially the same. Gas boiler by the boiler and auxiliary equipment components, comprising a boiler furnace, boilers, burners, water wall superheater, economizer, air preheater, furnace wall structure and the like constituting the main part, wherein the furnace is a steam drum and the most important parts. The most important is to be tested in the boiler maintenance boiler maintenance, during testing, we need to pay attention to several aspects: 1, inspection of boiler: the transformation of boiler pressure parts, to be carried out in strict accordance with the provisions of the relevant departments review, and then examined by the inspector. 2, the quality of manufactured boiler inspection: Check the manufacturers use the material meets the requirements, the boiler arrangement is reasonable, relevant information and product certification are complete and reliable. 3, test operation of a gas furnace: boiler operation or planned shutdown of internal and external examination conducted, divided into regular and non-scheduled services. 4, boiler design inspection: inspection carried out by the labor department and the competent authorities, the rationality of the main boiler structure review. 5, repair quality inspection of boiler: boiler body before carrying out the overhaul, the labor department to review the reasonableness of the repair program, including technology, strength, use of materials, acceptance conditions. 6, testing the quality of the boiler installation: install the main check for compliance and whether the arrangement meets the design requirements, safety accessories are complete and accurate, furnaces wall of eligibility and so on. After completion of the gas boiler inspection points and are up to par, we can rest assured that the use of, the boiler can be normal and safe operation of the boiler as long as our regular proper maintenance in subsequent use for maintenance, also will not affect the progress of our work, too, coal-fired boiler boiler inspection may also be examined in accordance with these points.

At 10:00 on September 6 and more, Harbin, a business is the purchase of a new seller 1 ton energy saving boiler vietnam equipment installation, commissioning process when staff at a boiler pressure gauge index found that the performance of the boiler abnormal, but not so the commissioning personnel when the next step, a sudden loud noise, boiler explosion, a huge flame and furnace pressure debugging of oil spray everywhere, four commissioning personnel are subject to varying degrees of injuries, was taken to hospital for treatment .

Boiler is an energy conversion device, by entering the fuel to the boiler, chemical energy, power, etc., outputs a constant steam heat, hot water or organic heat carrier, to provide support for the heat industries. Meanwhile, the boiler is also a special equipment has a certain risk, when the boiler installation, commissioning, operation, etc., be sure to boiler operation safety first.

Now, Xiao Bian to operational safety considerations gas boiler summarize, we can refer to.

First, start, boost, steam supply

1, before the start of the preparatory work

Internal and external check: Check boiler, burner, a good state of the accessory device; action safety accessories, each of the valves, such as flexible instruments, the correct position.

Check the line voltage to meet the requirements, a variety of normal switch position, respectively, various auxiliary pump starts operating, the burner fan, oil pump is normal.

Boiler Feed: exhaust valve opening, to ensure the normal water level (just below the water level).

2, start

Firstly purging the furnace, induced draft fan suction time is usually about 10 minutes to ensure that no residual gas in the furnace, passing substitutions, and ignition for combustion air supply.

After firing is completed according to the adjustment amount of load required for combustion, the boiler into normal operation.

During startup, to closely monitor changes in water level, water boiler accident or occurrence textile full of water accidents.

Second, the normal operation

1, the water level

Fuel gas-fired boiler water table should be the red line indicating the high, medium and low water level, the operation shall not exceed the maximum safe level or below the minimum safe level.

Rinse water table at least once per shift, when there is suspicion of running water, rinse should always check.

2, steam pressure

Red lines indicate the working pressure gauge should have, so sensitive and reliable, the trap should be flushed at least once a week.

3, safety valve

Safety valve should seal intact, no leakage; once a week manually (or automatically) emission test, and begin start pressure, opening pressure, reseating pressure and test time, participants, etc credited maintenance log book u, for future reference .

4, sewage

Proceed as boiler water quality requirements of water quality testing personnel under the guidance of class 1 or 2 times sewage, sewage incident not too long, generally no more than 10 minutes.

Sewage should (preferably when shutdown), should be closely monitored sewage water level changes, and pay attention to safety at the time of low load, low pressure, high water level.

Many boilers when sharing a sewage mains, while sewage is prohibited.

Third, shutdown

1, the normal shutdown

After normal boiler shutdown should generally be reduced boiler load operation, press the boiler shutdown procedure. Actuated pump water to high water level, pressure steam boiler to be dropped after 0.3MPa flushing water table and sewerage operations, and finally close the raft, cut off the power supply control cabinet, wipe equipment, clean up the environment and health, For water, the water temperature should be below after 70 ℃, before proceeding.

2, emergency shutdown

When the boiler operation in the following situations should immediately shutdown:

Furnace water level drops below the minimum water level gauge visible edges.

Increasing water supply and other measures, but digital still continue to fall.

Boiler water level exceeds the highest visible water table level (full of water), the water still can not see the water level.

All water supply system water pump failure or malfunction, not water to the boiler.

Water gauge or safety valve all the failures.

Endanger the boiler element is damaged and the safety of operating personnel.

Combustion equipment damage, or furnace wall collapse and other red-hot boiler structure is a serious threat to the safe operation of the boiler.

Other anomalies endanger the safe operation of the boiler.

3, maintenance

Before maintenance work should be well prepared, as before entering the drum interior work, must be of sufficient strength to connect all of the metal blocking plate spaced reliable steam, water, sewage and other operation of the boiler pipes, and the drum manholes and hand holes (boiler shell) is opened, so that air convection period.

After the completion of preparations to repair. Should ensure that the quarterly frequency of boiler maintenance and repair of the year.

Advances in technology to the boiler industry into new and innovative ideas, now the boiler manufacturers boiler are easy targets toward the operation forward, but in the use of the boiler, improper operation or other quality problems still exist, these failures will It is causing the direct cause of the explosion boilers. Therefore, when using the boiler must be in strict accordance with safety practices boiler, security incidents strangled in the cradle.

How natural gas seller 1 ton energy saving boiler vietnam cleaning? Alkali cooking cleaning method: gas-fired cooking alkaline cleaning method descaling, pickling cleaning effect than the difference method, but since a base boiled loose scale, and therefore difficult to remove with hydrochloric acid for scale before acid pickling may be treated with a base to conduct a cooking method. Alkali cooking method is simple, relatively small side effects. The disadvantage is a long time cooking oven, more reagent consumption, and poor results. Descaling pickling method: gas boiler descaling pickling process using hydrochloric acid or nitric acid, most of the cleaning. Pickling solution by adding nitric acid or hydrochloric acid was added inhibitor of the corrosion inhibitor composition. This can eliminate the acid liquid natural gas boiler scale (scale except when nitrate, hydrofluoric acid to be added), and very little corrosion in the boiler. Descaling pickling has dissolved, exfoliation and slack action. Mechanical descaling method: When a loose scale and slag within the gas boiler, the boiler shutdown after cooling, let go of boiler water, rinse with water after, to use flat shovel, wire brushes, and motorized milling tube is descaled . This method is relatively simple, the scale used for simple, small boilers. However, labor-intensive, ineffective cleaning, easy to damage the boiler.

Boiler surface quality of the weld quality of the weld surface of the seller 1 ton energy saving boiler vietnam requires requirements: (1) should meet the dimensions of weld design requirements and technical standards, weld and base metal should be a smooth transition, is not less than the height of the weld surface of the base material . (2) the weld heat affected zone and the surface does not allow cracks, pores, craters, and macroscopic defects such as slag. Vertical (3) of the pressure element, and the circumferential weld seam stitching head no undercut, partially undercut the remaining weld depth of not more than 0.5 mm. Sides undercut weld pipe total length of not more than 20% of the circumference of the tube. (4) grinding the weld surface after the elimination of defects or mechanical damage thickness not less than the thickness of the base material. (5) on both sides of the slag and weld spatter must be removed.