Introduction of heat tracing and sampling composite duct and cable

The heat tracing and sampling composite duct cable is an important part of the monitoring system. It is composed of a set of corrosion-resistant high-performance resin conduits, high-temperature constant-power electric heating belts or self-limiting electric heating belts, and compensation cables. Imported raw material insulation layers are added. After z.ui, coat with polyethylene or polyvinyl chloride sheath. The constant power heating belt adopts platinum resistance temperature probe to control the temperature. The automatic temperature limiting function of the self-limiting heating belt can ensure that a certain temperature is maintained in the sampling tube, so as to ensure that the collected samples are as consistent as possible with the initial value, and z.ui will eventually guarantee the monitoring system. continuity. Accurately collect sample gas. According to different ambient temperatures, suitable tracking belts, compensation lines, power lines, etc. can be used. It can also be added according to user requirements.

Technical parameters of heat tracing and sampling composite umbilical

1. Matching heat pipe: made of perfluorooctane sulfonic acid, FEP and PTFE; the outer diameter is 6mm, 8mm, 10mm, and there are single pipe, double pipe and three cores.

2. Accompanying belt: MI heating cable, constant power and automatic temperature control.

3. Outer diameter of heat tracing pipe: DN32 2 mm, DN38 2 mm, DN42 2 mm, DN45 2

4. The sampling gas tracing temperature is 70℃/85℃/100℃/120℃/150℃/180℃/220℃.

5. Insulation layer: high temperature rock wool, glass wool.

6. Sheath layer: black PVC/PVC/PE wear-resistant layer, flame retardant/waterproof/high temperature/corrosion resistance.

Installation details of heat tracing sampling composite pipe

Electrical indicators

1. Rated voltage: 220VAC.

2. The maximum heating length of the self-limiting temperature pipeline is 100-120m.

3. The self-limiting temperature pipeline is equipped with a circuit breaker, and the current value is 30A.

4. One loop of heat tracing system.

Thermal index

1. In the case of -20 ℃ ambient temperature and 15m/s wind speed, the temperature in the tube should be kept at 40-50 ℃.

2. The sampling tube is resistant to corrosion by various acids and alkalis, and the compressive strength is 1.0Mpa without leakage.

3. The sampling tube can work for a long time under the temperature of <200℃.

Install metrics

1. The z.ui minimum curvature radius of the composite pipe is 0.5m.

2. The low installation temperature of z.ui is -20℃ (take appropriate measures at -30℃～-40℃).

3.z.ui Small fixed distance: 2m in vertical direction and 4m in horizontal direction.

Precautions for installation of heat tracing and sampling composite pipe

It is strictly forbidden to twist and drag on the ground during the construction process. Only after the contacts are installed, the pipe head sheath is allowed to be removed. The end of the heating cable should be closed to prevent the two wires of the heating cable from shorting and burning the heating cable. The shielding layer of the heating cable must be grounded to prevent electric shock. A special intermediate junction box or power junction box should be used at one end of the power supply to avoid potential accidents. Install power distribution switch leakage protectors.