380V Box Electric Heater Mineral Insulated Explosion Proof

Instrument Box Electric Heater of Mineral Insulated Heating Cable is a developed product of technology international cooperation for heating instrument box based on magnesium oxide mineral insulated metal sheathed heating cable. It comprises of MI cable as heating element and aluminum alloy radiator into finished heater product. Through heat conduction oil or solid powder, the heat can be transferred from the heating element.

It has two kinds of structure, one is integrated with the heater and the instrument fixing frame, and the other is the ordinary structure without the instrument fixing frame. These two are for clients’ selection and installation convenience.

Product features of instrument box electric heater:

1. It has the advantages of small volume, large heat dissipation area, low surface load, rapid heat dissipation to the instrument box and high thermal efficiency.

2, Safe use, good explosion-proof performance, equipped with multiple overtemperature protection.

3. The outer shell of the instrument box is made of stainless steel, carbon steel, aluminum plate or plastic. The inner wall is laid with insulation material and electric heating cable, which can accurately maintain the temperature of the box body and ensure the normal operation of all kinds of instruments.

Instrument box electric heater product application:

Applicable to all kinds of application fields where need to maintain a certain temperature to prevent the instrument medium solidification or crystallization.

Working principle

The built-in electric heater is a purely resistive electric heating load. The thermal energy is radiated through the metal sheath of the MI heating cable to heat the surrounding medium to achieve temperature rise or heat preservation. The whole process is completed in the conveying pipeline.

The system electrical block diagram is shown in Figure 2.

Figure 2 Electrical Block Diagram.

Fourth, model description and performance characteristics

1. Model Description

Built-in electric heater

2. Performance characteristics

1). High thermal efficiency: The heating body of the built-in electric heater is placed in pipeline with full contact to internal medium. The generated thermal energy can be 100% absorbed in pipeline, so the thermal efficiency is high.

2) Stable performance: The materials of MI heating cable and temperature measuring cable are made of inorganic insulating materials. Their physical and chemical properties are quite stable at their rated service temperature.

3) Long service life: metal sheath of MI heating cable and temperature measuring cable are sealed, seamless, mechanically strong and no heat aging. The sheath material resistant to medium corrosion can be used to ensure long-term service life for more than 30 years.

4) Easy to install: The product is built into the pipeline without internal fixing, and the external connection is simple.

5) Safe and reliable: The complete set of products is equipped with reliable electrical protection measures, and its automatic operation is safer, more explosion-proof and reliable, and fully meets the HSE management standards for oil and gas fields.

3. The main parameters

3.1 Built-in electric heater (three-core component heating cable as an example)

Pasia Industries is a scientific and technological enterprise specializing in researching, developing, producing, installing and providing technical consultation and service for mineral insulated heating cables, heating elements and finished heaters as well as welded honeycomb products for filtering, shielding, sealing and guiding. Located in Puyuan high-tech park, Zhejiang province, it covers an area of more than 10 hectares, with a construction area of more than 50,000 square meters. It possesses a convenient transportation, about 150 kilometers from Shanghai in the north and 40 minutes from Hangzhou Xiaoshan international airport in the south.

With the most professional production lines and the highest automation level in China, Pasia produces mineral insulated heating cables, heating elements and finished heaters, honeycomb cores of stainless steel, brass, nickel, aluminium and other metal or metal alloys according to international standards. Pasia is one of the top four professional manufacturers of industry in the world on capacity and sales. As leading technological products, they possesses advanced properties of good quality, many varieties, full specification range, wide application, long service life, good safety and easy maintenance etc., and have been successfully applied to oil and gas (extraction, transportation, storage, etc.), chemical industry （petrochemical industry, fine chemical, pharmaceutical, etc.), power (nuclear power, solar power, etc.), construction (melting ice and snow), railway, aviation, metallurgy, electronic and et al for the applications as heat tracing and heating, detecting, signaling, power transmission, as well filtering, shielding, guiding and sealing. The company has become one manufacturer of the few in the world of completely electric heating technology and products of four categories including constant wattage, temperature self-regulating, MI heating cable and skin effect resistance and one of the top three wire electric heating products suppliers. The honeycomb core has been widely used by many clients on filtering, water treatment, structure platform with high requirement on flatness, shielding, turbine sealing and straightening etc. It can not only provide complete categories of professional products, also provides customers with solutions, consulting, project reply, EPC project general contracting services which can even be extended to the services including safe operation for maintenance etc. So far, the company has possessed 25 related patented technologies, 13 national new products, and 12 national technological innovation projects.

Upholding a company spirit of leading innovation and win-win cooperation, Pasia has become one of the few in the industry who possesses complete capacity of research and development, design, production and installation of mineral insulated heating cable and its heating equipment, honeycomb core and its parts or modules both home and abroad, relying on professional team, advanced management means, close work with related universities, design institutes and scientific research units, industry leading R&D testing capacity, under the ISO9001 quality system. After several years’ hard and persistent efforts, Pasia have the ability to supply a complete set of products, excellent technical support and perfect follow-up service. A variety of products have not only been applied to meet the requirements from domestic market, but also exported to many countries and regions such as Europe, Asia, Africa and America to serve different categories of purposes. It receives a high visibility and reputation from the industry. Over the past years, the company has involved in thousands of projects from all walks of life, among which the most influential ones are:the explosion-proof natural gas electric heater at Datong natural gas gate station in Shanxi province; Electric heater for paint material for the production bases of Hempel (USA) paint company in Kunshan and Guangzhou; Electric heaters for Tongyi chemical system in Beijing, Lanzhou, Shanghai and Shandong; Complete heating and tracing equipment for large oil and gas fields in Jiangsu oilfield, Benin, Angola, Thailand, Myanmar, Kazakhstan, the UK, Canada; the wind or water tunnels of honeycomb core in Singapore, India, USA and UK, shielding honeycomb core applications from many foreign countries, honeycomb seals for the turbines from Russia etc.

Insists on serving market with sincerity, securing quality with technology, leading innovation with study and driving development with passion, Pasia has become a well-known provider of advanced heating technology solutions at home and abroad, and one of the fastest growing members in the industry.