Can a heat trace be energized for a long time

It can be powered on for a long time.

This is because today's electric heat belt installations usually have a temperature controller. Realize intelligent control and long-term power-on. It is commonly known as self-limiting electric heat tracing.

Bring. It is a temperature control terminal for the electric heat tracing, which obtains the temperature of the electric heat tracing through the temperature probe and intelligently adjusts the output power.

The effect of achieving a constant temperature.

The other type is the limited power meter, through which the power set by the constant user is controlled in a safe range, so as to protect the service life of the electric heat tracing, and the above two schemes avoid the abnormal use of the electric heat trace caused by continuous power.

Electric heat tracing can always be energized, for example, the self-limiting electric heat tracing heating material is PCT semiconductor material heating, which can achieve resistance closure with the outside temperature and control the current size. When thermal equilibrium is reached, the current is small. So it can be powered on all the time.

Of course, in order to ensure the self-limiting temperature of the electric heat tracing, proper external insulation is still required. When the heating season is over, it can be turned off.

Generally, 25W is a low-temperature self-limiting electric belt, and if it is used for a long time, the electric belt itself will be attenuated. Total power of the electric belt: the length of the electric belt * the wattage per meter of the electric belt. If there is anything else you want to know, you can go.

Can the heat trace be energized constantly?

Heavyweight! At present, the service life of the good self-limiting electric belt on the market is only 6 winters, and the service life of defective products may only be 2-3 months.

The service life of high-quality constant power parallel electric belt is 10 years, and the service life of defective constant power electric belt is 3-5 months.

Now the best electric heat tracing on the market "explosion-proof tandem electric heat" has a service life of 50 years! The shortest service life can also reach 3-5 years!

I'm going to do a comparison here about the difference in performance between the electric belt and the electric belt; Self-limiting electric belt 220V 25W m When the ambient temperature is -20 degrees, the surface heating temperature is only 50 degrees, but the service life is still short! Tandem electric belt 220V8W m At the ambient temperature of -20 degrees, the surface temperature can reach 60 degrees, but the service life is still long! The same ambient temperature, try to get different results, and the maximum length of the self-limiting temperature electric belt is only about 300 meters long, and the starting current is very large!

However, the maximum length of the series electric belt reaches more than 3000 meters, and the series electric belt does not have a starting current, if the 3000-meter-long pipeline uses the self-limiting electric belt to do electric heating and insulation, 10 power junction boxes are needed, and the cable needs about 2800 meters to run with the pipeline, and there are many potential safety hazards if there is more labor, and the series electric belt only needs a power junction box, only close to the power box, and the cable can be used for a few meters, saving labor, There are no intermediate joints that are easy to leak potential safety hazards!

It is recommended that new and old customers choose high-quality series electric belts! Energy saving, environmental protection, safety, labor saving and money saving!

The length of the series electric belt: 150 meters long to 3500 meters long can be customized! Operating Voltage:

220v-1100v can be customized! Power per meter: 5w-60w can be customized!

Anti-corrosion and explosion-proof ultra-long pipes are preferred!

It can be used continuously for 24 hours.

Heat tracing. It can be energized 24 hours a day, and now the heat trace produced is self-limiting temperature type, the electric energy used by the heat trace is very small, and the heat generated is also adaptable, it can be energized 24 hours a day, there is absolutely no problem, the tail end must be handled well when installed, and a special junction box can be selected if necessary.

Precautions for the use of electric heat tracing.

1. Do not use strong pressure impact when laying the electric heat tracing, it is easy to damage the material structure in the belt, if the material in the belt has changed, it not only greatly affects its work efficiency.

It is also prone to disaster. Do not fold multiple times the electric heat tracing, especially if the diameter of the fold is greater than six times the diameter of the belt, it is easy to make the structure in the belt change drastically and produce unpredictable disasters.

2. Do not place things that are easy to produce electric sparks in the vicinity of the electric heat tracing, some manufacturers place a lot of welding materials around, which is easy to burn the insulation layer on the surface of the belt, resulting in unexpected trouble. There are length limits and other requirements for electric heat tracing, so read the requirements carefully when using them to avoid disasters caused by low-level errors.

It can be powered on for a long time.

This is because today's electric heat belt installations usually have a temperature controller. Realize intelligent control and long-term power-on. It is commonly known as self-limiting electric heat tracing.

It is a temperature control terminal for the electric heat tracing, which obtains the temperature of the electric heat trace through the temperature sensing probe, and intelligently adjusts the output power to achieve a constant temperature effect.

The other type is the limited power meter, through which the power set by the constant user is controlled in a safe range, so as to protect the service life of the electric heat tracing.

Brand model: Juchengyun.

System: Electric heat tracing.

The heat trace can be energized for a long time. The installation of the electric belt will usually have a temperature controller. Realize intelligent control and long-term power-on.

It is commonly known as self-limiting electric heat tracing. It is a temperature control terminal for the electric heat tracing grinding belt, which obtains the temperature of the electric heat tracing through the temperature sensing probe, and intelligently adjusts the output power to achieve a constant temperature.

Precautions: 1. When laying, do not discount, do not bear excessive tensile force, and prohibit impact hammering, so as to avoid short circuit after damage to the insulation. During installation, welding, hoisting and other operations should be carried out over the installation place to prevent welding slag from splashing on the electric heat trace and damaging the insulation layer.

Confirm that the pipes or equipment that are being heated have been tested and cleaned, and the surface is thorn-free, and the sharp edges have been polished and smooth.

2. When laying by winding method, do not exceed the minimum bending radius (the minimum bending radius is not less than six times the thickness of the trace), bend or fold excessively, which may cause the local molecular structure to change and cause breakdown and ignition.

3. The heat trace should be close to the surface of the pipe to facilitate heat dissipation, and the heat trace should be fixed with aluminum foil tape, which increases the heat dissipation surface on the one hand, which is conducive to heat conduction and easy to install on the other hand. The method is as follows: first remove the oil and water at the passage of the heat tracing, fix the electric heat tracing in the warp direction with the fixed tape, then lay the covering aluminum foil tape, and finally wipe and press with a cloth to make the heat trace flat and paste on the surface of the pipeline.

The electric heat can be energized for a long time, but if it is used for a long time, it will cause the electric heat to decay itself, resulting in the attenuation of heat.

The electric heat trace consists of a conductive polymer and two parallel metal wires and an insulating sheath. It is characterized by a high positive temperature coefficient of conductive polymers, and in parallel with each other, can automatically adjust the output power with the temperature change of the heated system, automatically limit the heating temperature, can be arbitrarily truncated or extended within a certain range of use, and allow multiple cross-overlapping without high temperature hot spots and burning concerns. Hail Hall.

1.What is the working principle of self-limiting electric heat tracing?

Working principle The electric heat trace is composed of nano conductive carbon particles and two parallel bus bars with an insulating layer, due to this parallel structure, all self-limiting electric heat tracing** can be cut into any length in the field, connected by two-way or three-way junction boxes.

In each wire, the number of circuits between the busbars varies with the influence of temperature, when the temperature around the heat trace cools, the conductive plastic produces the contraction of micromolecules and makes the carbon particles connect to form circuits, and the current passes through these circuits, so that the heat trace heats. When the temperature rises, the conductive plastic produces the expansion of micromolecules, and the carbon particles gradually separate, causing the circuit to interrupt, the resistance rises, and the heat trace automatically reduces the power output.

When the temperature becomes cold, the plastic returns to the state of micromolecular contraction, and the carbon particles are connected accordingly to form a circuit, and the heating power of the heat trace automatically rises. Self-limiting heat tracing has the advantage of not being found in other heat tracing equipment, it controls the temperature from being too high or too low because the temperature is automatically regulated.

2.What is the specification for electrical heating tracing in pipelines.

The electric heat tracing system is composed of HGLX-J3 PF-3 electric heat tracing, GRPDX distribution box, FDH-2 and FJH explosion-proof junction boxes, heat-resistant pressure-sensitive tape and aluminum foil tape.

It is clearly stipulated that the electric belt should operate in strict accordance with the ios9001-2000 quality system, and all products should meet the explosion-proof certification of the shelf explosion-proof identification center. Its standard color is gray, with a maximum maintenance temperature of 65 105, a maximum withstand temperature of 85 135, and a calorific value of 5 99 and 5 149 is sustained at more than 90%.

The bending radius differs at two room temperatures, 20 at room temperature and -30 at low temperatures35.

0mm。The minimum insulation resistance is 400m.

The minimum construction temperature is -40. The distribution box adopts the standard distribution box for GRPDX antifreeze, adopts a wall-mounted structure, and the power cable is imported at the bottom of the box, with a protection level of IP4.

Equipped with air circuit breaker, leakage protector, etc. inside. The power junction box is rated at AC 200V 380V and rated at 4A.

Note that if deformation, crack or damage is found, it should be discontinued; When installing, remember the short circuit between the heating wire, the outer braided copper wire and the core wire; The unused inlet hole should be plugged with the attached steel plate. Ducted Electric Heating**: There are many styles of ducted electrical heating on the market today, so the price points are also different.

There are 5 yuan to 30 yuan per meter, but most ** are around 10 yuan to 20 yuan per meter.

No, you need to stop it regularly to avoid burning out.

Conductive polymers have a high positive temperature coefficient and are connected in parallel to each other, automatically adjusting the output power in response to temperature changes in the system being heated.

Automatically limit the heating temperature, can be arbitrarily truncated or extended within a certain range, and allows multiple cross-overlapping without high temperature hot spots and burning concerns.

The output power of the self-controlled heating cable is at ambient temperature in Celsius.

The output power of the cable per unit length at 10 degrees. According to the classification of heating power output, there are three types of self-controlled temperature heating cables: high, medium and low.

Generally speaking, the heating power is less than 35 watts for low-power heating cables; Heating cable with a heating power greater than 35 watts and less than 70 watts is a medium-power heating cable; The heating is greater than 65 watts, and the high-power heating cable is used.

With the addition of a temperature controller, intelligent control and long-term power-on can be realized. It is commonly known as self-limiting electric heat tracing.

This depends on the type of heat trace actually used and the working conditions of use.

No, you need to stop it regularly to avoid burning out.

The power consumption of electric heat tracing depends on the power of the heating cable you use, please carefully check the product description of the relevant electric heat tracing. For example, a 40-watt constant power electric heat trace is 40 watt-hours per meter per hour, and if there are 100 meters in total, it is 4 kilowatt-hours per hour, which is 4 kilowatt-hours of electricity.

As far as the current market is concerned, most users use self-controlled temperature electric heat tracing. In the case of self-controlled thermoelectric heat tracing, the actual power is less than the nominal power. Because the self-controlled electric heating does not work continuously, it will exit when the temperature reaches a certain value.

When the temperature drops to a certain value, it will be automatically put in again. The larger the difference between the ambient temperature and the maintenance temperature, the greater the power, and the smaller the difference between the ambient temperature and the maintenance temperature, the smaller the power.

The biggest advantage of electric heat tracing products:

1. It has long service life, small starting current, good memory performance and low annual attenuation rate;

2. The heating temperature is uniform, it will not overheat, safe and reliable;

3. It has advanced production equipment, complete testing methods and strict quality assurance system;

4. Save electricity and low operating costs;

5. Reasonable and honest management;

6. The product quality is strictly controlled, controllable and traceable.

The so-called electric heating is to use electric heat to compensate for the heat loss of the heat tracer (container, pipeline, etc.) in the process of production, in order to maintain the most suitable medium process temperature, the temperature is the least medium flow resistance, the highest production efficiency, the least power consumption and the lowest comprehensive cost for the purpose, with the best heat transfer distribution and low power consumption as the principle, the heating form is along the length direction or a large area of uniform heat release, small temperature gradient, stable temperature, suitable for long-term use, to maintain the most suitable temperature of the process system medium, This results in safe and economical operating conditions. At the same time, electric heat tracing can also be used as heating equipment for the process system, which can heat the process system medium from low temperature to the required temperature of the system. The product is a high-tech product, a substitute for traditional hot water heating and steam heating, and a green and pollution-free environmental protection product.