What are the reasons for the explosion of the heat conduction oil and electric heater?

Hot oil is also called organic heat carrier furnace as heat conducting oil boiler, the official name for the hot oil furnace. The use of coal, oil and gas as fuel, with heat conducting oil as new energy equipment circulating medium heating, heat conduction oil furnace refers to the heat medium for high temperature heat conduction oil (also called thermal coal, heat carrier) new energy conversion devices, usually with "MW" (MW) said furnace capacity of the old units with "million kilowatt hours" or "thousand calories /", namely "104kcal/h" said, "the advantage of heat conduction at high temperature and low pressure", running smoothly and is widely used. Generally, it is divided into two types of vertical and horizontal structure, which are mainly based on the two forms of the height of the equipment. Is the electric heater is directly inserted into the organic carrier (oil) in direct heating, the use of forced circulation pump, heat conducting oil liquid circulation, the heat is transferred to the heat equipment by using one or more, the use of heat equipment after unloading by re circulating pump back to the heater, then absorb heat transfer to with hot equipment, so the cycle, continuous transfer heat, the heated object temperature, process requirements for heating. As an intermediate heat transfer medium, it has been used in the process of industrial heat transfer for more than fifty years.

It is mainly used in chemical industry, transportation engineering, textile printing and dyeing, wood industry, rubber and plastic industry, petrochemical industry, food industry, oil industry, fiber industry, painting industry, paper making, air conditioning industry and other uses. It has low pressure, high temperature, safety, high efficiency, energy saving, complete operation control and safety monitoring device, and it can control the working temperature accurately. It has the advantages of reasonable structure, complete matching, short installation period, convenient operation and maintenance, and convenient layout of the boiler. Because of the advanced explosion-proof structure of the electric heating organic heat carrier furnace, it can be applied to the explosion protection in the factory II area, and the explosion proof grade can reach C grade.

The heat-conducting oil furnace has prominent characteristics compared with the steam boiler, can under low working pressure, high working temperature, has the characteristics of low voltage and high temperature technology. The thermal efficiency can be kept at the best level at all levels of load. It has complete operation control and safety monitoring device, which is easy to operate, safe and reliable. Closed circuit cycle, liquid phase transport heat energy, heat loss is small, energy saving effect is remarkable, operation cost is low. Fast loading or assembling, convenient transportation, short installation period and quick operation. Compact structure, can be arranged alone, boiler room investment. The boiler has good thermal insulation performance. It adopts high efficiency insulation materials and advanced construction technology. The heating and precise temperature adjustment of the furnace wall with small heat loss meet different requirements.

Thermal oil heater defects lead to explosion defects lead to explosion means that the boiler pressure does not exceed the rated pressure, but because of the main pressure parts of boiler cracks, serious deformation, corrosion, organizational change, leading to the main bearing components lose carrying capacity, a large area of rupture suddenly exploded. The explosion caused by defects is also one of the common explosions of the boiler. In addition to strengthening the quality control and safety supervision in the design, manufacture, installation and operation of the boiler, we should also strengthen the boiler inspection and find that the boiler defects are disposed in a timely manner so as to avoid the operation of the main pressure parts of the boiler.

The size of the pressure of 1 old city of heat-conducting oil furnace. The fracture of the steel plate is caused by the operation pressure of the boiler exceeding the maximum allowable working pressure. Due to the failure of the safety valve, it does not automatically discharge and reduce the pressure to the prescribed pressure, or the malfunction of the pressure gauge indicates the working pressure, or the malfunction of the alarm system makes the operator fail to take preventive measures in time, and so on. So the staff must gauge timing of the attention of heat-conducting oil furnace, such as high pressure take measures in advance.

2 hot oil temperature is too high is nearly beyond itself limits: furnace tube cracking due to overheating, the reasons are because of serious water shortage or direct flame burning stove pipe, or scale is too thick, or water oil furnace.

3 there is regular maintenance for conducting oil furnace: furnace pipe inside and outside surface due to corrosion and thinning, rupture in strength is not enough. The boiler mule was cold and hot because of improper operation, and the steel produced trough crack at the higher stress due to fatigue.

4, flammable gas; before the start of the boiler, the time of pre purging or purging is too short, or frequent start up is not carried out after purging, so that there is still flammable gas (natural gas) in the furnace, and the boiler explosion caused by the ignition.

5 the last one is the design and structure of furnace itself, due to their own defects and later also did not find the problem.