Several common faults and treatment methods of medical electric heating tube

Medical electric heating tube is a common heating element in electrical components, which can convert electric energy into heat energy. Because of its low price, it is convenient to use and install, and it is widely used in various heating occasions, but what should be done if there is a failure?

The following are several common faults and treatment methods summarized:

Fault 1: no heating

Fault analysis: abnormal power supply or power failure; Fuse is blown; The power cord plug is in bad contact with the power socket or the power wire wire is open circuit; The plug or lead of electric heating pipe falls off and causes short circuit; The electric heating pipe is burnt down; The contact of the thermostat is poor or the melting is disconnected.

Treatment method: use after power supply is normal; Replace the fuse of the same type; Repair or replace; Weld again; Replace the electric heating pipe of the same specification; Repair or replace.

Fault 2: fuse is burnt

Fault analysis: the fuse diameter is too small and the capacity is insufficient; The power cord plug is short circuited with the power socket; The plug or lead of electric heating pipe falls off and causes short circuit; The electric heating pipe (resistance wire) is burnt or causes short circuit; The electric socket is short circuited due to dirt or carbonization.

Treatment method: replace the appropriate fuse; Repair or replace the power plug or power socket; Re connect; Repair or replace; Clear dirt, repair or replace parts.

Fault 3: thermostat failure

Fault analysis: the porcelain contact rod of thermostat is stuck by foreign material; Deformation of hot bimetal; Dynamic and static contacts are fatigue and inelastic; The dynamic and static contacts are stuck and cannot be opened and closed; The fastening screws of the moving and static contact pieces are loose.

Treatment: remove foreign matters, and move up and down flexibly by hand pressing; Adjust deformation, restore original state and elasticity; Adjust the angle of contact to make it elastic; Repair and grind the contact, if no effect, replace the new product; Retighten.

Fault 4: leakage

Fault analysis: grounding wire; Too much dirt on electric socket or power plug; The circuit wire falls off and touches the cup body; The insulation of electric heating pipe (electric heating wire) is damaged; The electric heating pipe (electric heating wire) is burnt out and the cup body is short circuited; Improper cleaning, and enter into junction box.

Treatment method: connect the ground wire as required; Clean and dry; Check the wires falling off and weld them firmly; Repair or replace; Replace the same specification electric heating pipe; It is changed to cleaning and drying treatment correctly.