Fiberglass instrument protection box - insulated water tank

Fiberglass instrument protection box

purpose
1. Protection function of instrument protection (insulation) box: The instrument insulation (protection) box has the function of preventing external mechanical damage to instruments installed on the production site, such as transmitters of pneumatic or electric unit combination instruments and double glass tube differential pressure gauges, and can protect instruments and transmitters from the influence of atmosphere, sunlight, rainwater, and corrosive gases.
The insulation function of the instrument protection (insulation) box: The insulation box prevents the instruments, transmitters, and pipelines installed in the instrument insulation box from freezing, condensing, crystallizing, precipitating, vaporizing, and other phenomena, ensuring that the instruments operate normally within the specified allowable working range.
Classification of Instrument Insulation (Protection) Boxes
The instrument protection (insulation) box is made of fiberglass and has the characteristics of light weight, high strength, strong corrosion resistance, and good insulation performance.
There are two types of insulated boxes: electric heating and steam heating:
1. The steam tracing of the instrument protection (insulation) box can fully utilize the low-pressure steam in the production site, which is relatively economical, safe and reliable. However, the insulation pipeline should be as short as possible, suitable for general places and occasions with special requirements for explosion prevention.
The instrument protection (insulation) box adopts electric heating as the heat source. Compared with steam heat source, the insulation pipeline length is not limited, and it is easy to install, energy-saving, and widely used in situations without steam source.

Fiberglass instrument protection box

Instructions for using the instrument insulation box:

1. Check the appearance of the on-site instrument insulation box every day to ensure it is intact, clean, and free of water and moisture on the body. Also, take protective measures such as waterproofing, anti-collision, and anti smashing for the instrument insulation box.

2. Check daily whether there are any signs of air or water leakage in the pipeline of the on-site measuring instrument insulation box. If not, deal with them in a timely manner. Check whether the signal and power lines (distribution box) of the instrument insulation box are beautiful, and whether the anti-corrosion requirements of the measuring pipeline are perfect. All large and small valves (including drain valves) related to the instrument insulation box should be regularly oiled (mechanical oil, butter, lead powder) to ensure that the valve switch of the instrument insulation box is sensitive and easy to use.

3. On site differential and pressure changes should be discharged at regular intervals to prevent pipeline measurement and valve blockage (using balance valves correctly and correctly indicating the difference in liquid level between two boilers can easily prevent discharge). Record the demand for sewage discharge and have a clear understanding (frequent discharge or valve opening and closing is also not conducive to the normal operation of the instrument insulation box).

4. Four pressure gauges, including boiler drum pressure, main steam pressure, economizer outlet pressure, and excess steam outlet pressure, need to be calibrated by the quality inspection bureau every six months (with proper judgment records). Other simulated instrument insulation boxes should also be calibrated regularly according to their conditions.

5. Contact the technical team every day to confirm whether the secondary display instrument insulation box is accurate and reliable, otherwise it should be promptly verified and disposed of. DCS host units, operation station microcomputers, instrument insulation cabinets, etc. should be blown off of dust in a timely manner.