Application of electric heat pipe
There are two main types of electric heat pipes: civil heat pipes and industrial heat pipes. The main materials are metal electric heat pipe and quartz, carbon fiber and ceramic electric heat pipe, including stainless steel single-head electric heat pipe, stainless steel double-head electric heat pipe, quartz electric heat pipe, carbon fiber electric heat pipe, ceramic electric heat pipe. At the same time, it includes other electric heating elements or accessories, such as electric heating wire, electric heating plate, electric heating ring, cast copper, cast aluminum heater, etc.
Common uses of electric heat pipes are as follows:
Stainless steel dry heating tube: used in electric oven, electric oven, dryer, vulcanizer, heating and cooling air conditioning, food baking.
Single-head stainless steel electric tube: used in soldering furnace, shoe machine, sealing machine, plastic machine, small mold and various industrial equipment.
Cast aluminum, cast copper electric heater: used for ultrasonic cleaning machine, horn machine, wire and cable machinery, pulp molding.
Stainless steel water heating tube: used in water dispenser, water heater, mold temperature machine, electroplating equipment, electric furnace.
Ceramic, quartz electric heat pipe: used in tunnel furnace, wave soldering, reflow welding, heater, disinfection cabinet.
Mica, ceramic electric heating plate: used for injection molding machine, ultrasonic cleaning machine, drinking machine, pumping machine.
Mica, ceramic heating ring: used for injection molding machine, ultrasonic cleaning machine, drinking machine, pumping machine.
The above is the common use of electric heat pipe, other uses are not listed, such as there are some common industrial supporting heat pipe: mold temperature mechanical heat pipe, flat vulcanization mechanical heat pipe, vulcanization mechanical heat pipe, air conditioning duct electric heat pipe, industrial oven heat pipe, mold single hair heat pipe, injection molding machine heating ring.
Single head electric heat pipe working conditions and operation attention
The single-head electric heat pipe is an electric heating element used to convert electric energy to heat energy. It can be used either alone or as an electric element in various electric heating equipment. The single-head electric heat pipe should pay attention to its working conditions and some operating matters when it is used alone to ensure its use safety and heating effect.
1, the working conditions of the single head electric heat pipe
The single-head electric heat pipe has no special requirements for the temperature of the working environment, but the humidity of the air in the environment cannot be greater than 95%, and there cannot be flammable, explosive or corrosive gases. The working voltage of the external connection of the single-head electric heat pipe cannot exceed 1.1 times the rated voltage. Ensure that the shell is effectively grounded before the electric heat pipe runs to avoid electrical accidents.
2, single-head electric heat pipe operation attention
When the single-head electric heat pipe is used to heat easily melted metal or solid salt, paraffin, asphalt and other substances, the heating material must be melted first, then the external voltage of the electric heat pipe can be reduced, and then restored to the rated voltage after melting. In addition, when the single-head electric heat pipe heating salt and other substances prone to explosion accidents, safety measures should be fully considered.
When the single head electric tube is used for air heating, pay attention to its uniform arrangement, the advantage of this is to ensure that the single head electric tube has a relatively full and uniform heat dissipation space, and to ensure the fluidity of the air as much as possible, and improve its heating efficiency. The gap inside the single-head electric heat pipe is filled with magnesia, and the magnesia at the outlet end is easy to be polluted because of the infiltration of impurities and water, so it is necessary to pay attention to the state of the outlet end during operation to avoid leakage accidents caused by it.
The storage location of the single-head electric heat pipe must be kept dry and with appropriate insulation resistance. If the insulation resistance of the storage environment of the single-head electric heat pipe is found to be too small during use, it can be restored after low-voltage power supply. The single-head electric heat pipe should be properly fixed before use, and the wiring part should be placed outside the thermal insulation layer, and avoid contact with corrosive, explosive media and water. When the single-head electric tube is used for liquid or metal solid heating, it should be noted that the entire tube must be completely placed in the heated object, and the situation of empty burning of the single-head electric tube is not allowed. If there is scale or carbon on the outer metal tube shell after use, it should be removed in time to avoid affecting the heat dissipation performance and service life of the single head electric tube.
Advantages of single head electric heat pipe
Single-head electric heat pipe is a special electrical component that converts electrical energy into heat energy. Thanks to its low unit price, easy to use, fast heating, no pollution, it is widely used in various heating occasions. Single-head electric heat pipe evenly distributed high temperature resistance wire in the seamless tube of high temperature resistant stainless steel, in the gap part dense filled with good thermal conductivity and insulation properties of crystalline magnesium oxide powder, this structure is not only advanced, high thermal efficiency, and uniform heating, when the high temperature resistance wire there is current through, the heat generated by the crystalline magnesium oxide powder to the surface of the metal tube diffusion. Then transferred to the heated parts or air to achieve the purpose of heating.
Working conditions and precautions of electric heat pipe
The electric heat pipe is an electric heating element used to convert electric energy to heat energy. It can be used either alone or as an electric element in various electric heating equipment. When the electric heat pipe is used alone, it is necessary to pay attention to its working conditions and some operating matters to ensure the use of the electric heat pipe and the heating effect.
1, the working conditions of the electric heat pipe
The electric heat pipe has no special requirements for the temperature of the working environment, but the humidity of the air in the environment cannot be greater than 95%, and there can be no flammable, explosive or corrosive gases. The external working voltage of the electric heat pipe cannot exceed 1.1 times of the rated voltage. Ensure that the shell is effectively grounded before the electric heat pipe runs to avoid electrical accidents.
2. Precautions of electric heat pipe
When the electric heat pipe is used to heat easily melted metal or solid salt, paraffin, asphalt and other substances, the heating material must be melted first, then the external voltage of the electric heat pipe can be reduced, and then restored to the rated voltage after the melting is completed. In addition, when the electric heat pipe heating salt and other substances prone to explosion accidents, safety measures should be fully considered.
When the electric heat pipe is used for air heating, pay attention to the uniform arrangement of the electric heat pipe, the advantage of this is to ensure that the electric heat pipe has a relatively full and uniform heat dissipation space, and to ensure the fluidity of the air as much as possible, and improve the heating efficiency of the electric heat pipe. The gap inside the electric heat pipe is filled with magnesia, and the magnesia at the electric heat pipe outlet end is easy to be polluted because of the infiltration of impurities and water, so it is necessary to pay attention to the state of the electric heat pipe outlet end during operation to avoid the leakage accident caused by it.
The storage location of the electric heat pipe must be kept dry and with appropriate insulation resistance. If the insulation resistance of the electric heat pipe storage environment is found to be too small during use, it can be restored after low voltage power supply. The electric heat pipe should be properly fixed before use, and the wiring part should be placed outside the insulation layer, and avoid contact with corrosive, explosive media and water. When the electric heat pipe is used for liquid or metal solid heating, it should be noted that the electric heat pipe must be completely placed in the heated object, and the situation of empty burning of the electric heat pipe is not allowed. If there is scale or carbon on the outer metal shell after the use of the electric heat pipe, it should be removed in time to avoid affecting the heat dissipation performance and service life of the electric heat pipe.
The common fault of electric heat pipe and its elimination method
First, electric heat pipe leakage
Cause:
1, not connected to the ground;
2, electric socket or power plug dirt too much
3. The circuit wire falls off and collides with the cup body
4, heat pipe (core) insulation damage
5. The heat pipe (core) is burned out and the cup body is short-circuited
6, improper cleaning, water infiltration
Treatment method:
1. Connect the ground wire as required
2. Clean the power socket or power plug and dry it
3, check the loose wire, re-weld
4. Repair or replace
5, replace the same specification heat pipe (core)
6, clean correctly, dry treatment
Second, the electric heat pipe does not heat
Cause:
1. Abnormal power supply or power failure
2. The fuse has been blown
3. The power cord plug is in poor contact with the electric socket, or the power cord conductor is disconnected
4. The lead or lead of the heat pipe (core) falls off
5, the heat pipe (core) burned
6, the temperature controller contact is poor contact or melting off
Treatment method:
1. Check the power supply and use it after normal operation
2. Replace the fuse of the same model
3. Repair or replace
4. Re-weld
5, replace the electric heat pipe (core) with the same specification
6. Repair or replace
Third, temperature control flange heat pipe, electric temperature control device failure
Cause:
1. The porcelain contact rod of the temperature controller is stuck by a foreign body
2, hot bimetal sheet deformation
3, dynamic and static contact fatigue, loss of elasticity, poor contact
4. The dynamic and static contacts are sticky and cannot be opened or closed
5, the dynamic and static contact plate fastening screws loose
Treatment method:
1, remove foreign bodies, hand press can move up and down flexibly
2, adjust the deformation, restore the original state and elasticity
3, adjust the Angle of the contact to restore its elasticity
4, grinding contact, if there is no effect to replace new products
5. Tighten again
Four, the fuse of the electric heat pipe is blown
Cause:
1, the diameter of the fuse is too small, the capacity is insufficient
2. Short circuit between power cord plug and electric socket
3. The primer or lead of the heat pipe falls off, causing short circuit
4, the heat pipe (core) burned out caused by short circuit
5, electric socket accumulation of dirt or carbonization caused short circuit
Treatment method:
1. Replace the appropriate fuse
2, repair or replace the power plug or electric socket
3. Reattach
4. Repair or replace
5. Remove dirt, repair or replace parts
The above phenomena and treatment methods are for reference only. If you have any other questions, please contact us.
