- Pipeline heating
- Thermocovers and field cabinets
- Heated Pre-Insulated Pulse Lines
- Industrial Electric Heaters
- Explosion proof equipment
- Cable Support Systems
The electrical heating system of pipelines is designed to compensate for heat losses at temperatures not lower than the minimum design ambient temperature. We offer a wide range of cable products for electrical heating systems of pipelines in the industry.
Pipeline heating with BSX, RSX, KSX, HTSX, VSX cables
The effectiveness of the use of self-regulating cables for electric heating of pipelines from freezing is due to their unique performance characteristics. These cables maintain the most optimal temperature of various technological processes in non-metallic and metal pipelines, as well as to prevent freezing and icing.
The cables are designed in such a way that the output thermal power changes on the basis of environmental temperature indicators, gradually increasing with decreasing temperature and decreasing with increasing temperature indicators, which is due to the effect of self-regulation.
As a rule, the choice of the type of cables directly depends on the type of pipeline, maintenance temperatures and process temperature indicators. Their main difference from resistive is that the first are not terrible overlaps, which are almost impossible to avoid during the installation work.
Scope of application includes on-site and in-plant pipeline systems, which differ in small length (no more than 300 meters), the presence of a large number of valves (pumps, valves, supports, flanges), as well as a complex configuration.
The use of cables BSX, RSX, KSX, HTSX, VSX in the heating system of pipelines provides:
- Possibility of heating outside pipelines of complex configuration;
- Easy installation;
- Possibility of cutting along any length;
- Stable temperature maintenance due to the effect of self-regulation;
- Energy saving;
- Operational safety;
- Heating cable.
- Connection box.
- Temperature sensor (if necessary).
- End fitting.
- Temperature sensor (if necessary).
- Fastening tape.
- Anticipation plates.
- Thermal insulation.
Pipeline heating with HPT cables
Heated piping with HPT cables HPT heating cables, like self-regulating cables, are heaters of parallel resistance, which means they have the advantage of being able to cut along any length, as well as ease of installation and design.
Cable power also depends on its ambient temperature, however, it varies in a less wide range. This type of cable is used when it is necessary to maintain high technological temperatures, as well as in the case of high temperatures on the cable.
Heating of pipelines with TESH, TEK, HTEK, MIQ cables.
Heating cables TESH, TEK, HTEK are used to heat inter-site, main pipelines from freezing, characterized by a large length, the minimum number of valves, constant diameter along the entire length of the route.
For electric heating of such pipelines from the outside, it is advisable to use a heating cable of constant power with series resistance, i.e. resistive. The heating of such a cable occurs due to the passage of current through the cable core, which is the heating element. Sections longer than 3 km can be powered from a single point, which reduces the length of the power cable.
Heating cables of series resistance provide the same specific heat output power over the entire cable length without a voltage drop. The possibility of a 3-phase connection ensures a uniform load of the electrical heating system.
Cables TESH, TEK, HTEK can be connected to increased voltage, which allows to increase the length of the heated section. The output power of such a cable directly depends on the length of the heating circuit, therefore, using this type of cable, it is necessary to strictly adhere to the designed lengths of the circuits for each specific pipeline, without changing them during installation.
High-performance mineral-insulated MIQ heating cables are used to maintain ultra-high temperatures, or in cases where the temperatures are so high that it becomes impossible to use any other heating cable.
MIQ cables are supplied with ready-made heating sections of the required projected length, with cold inputs already welded at the factory for connecting the cable to the junction box. This approach allows to avoid rejects and errors due to poor quality of the welded joint in the conditions of the installation site at the construction site. Welding work performed on a mineral-insulated heating cable requires special skills that a guarantor can.
Heating of pipelines with ThrmTrac heating systems based on skin effect
Trunk or pumping pipelines up to 25 km long are usually used to transport the product over long distances. Often the supply of several power points to the system of electrical heating of main pipelines is a difficult and sometimes not feasible task. An ideal electrical heating system for such pipelines can only be a system that can be connected from one or both sides. The electrical heating system using the Therm Trac skin effect solves this problem.
The operation of ThermTrac systems is based on two effects: The proximity effect and the surface effect (“skin effect”). The heating element is a carbon steel tube. Insulated conductor is laid inside the tube. At one end, the steel tube and conductor are interconnected, and on the other side are connected to a power source. When an alternating current is applied to the heating tube and conductor, the current path follows a closed loop. The skin effect between the insulated current conductor and the heating tube allows the reverse current to concentrate on the inner surface of the heating tube.
The current concentration on the inner surface of the heating tube is so complete that the voltage on the outer side of the tube is immeasurable. Due to this phenomenon, the heating tube can be grounded and the device can be welded or attached to the pipeline without a short circuit between the heating element and the heated pipeline. Heat is generated due to the large resistance of the internal space of the heating tube due to the surface effect. The ThermTrac ™ system can be reliably applied above or below ground, as well as in hazardous areas. Welding work performed on a mineral-insulated heating cable requires special skills that only the manufacturer can guarantee.
Typical ThermTrac system components include:
- Control panel;
- Interconnecting power box;
- Introduction box;
- Heating tube;
- Broach / connection box;
- End box;
PURPOSE AND APPLICATION.
Explosion-proof thermal covers are flexible heat-insulating housings with electrical heating, the main purpose of which is to ensure the operability of process equipment under the influence of low negative temperatures, as well as the negative impact of the environment and corrosive production environments of the oil and gas industry. Thermocovers are successfully used to solve the following tasks:
ensuring the required operating conditions for process equipment placed in extremely low negative temperatures (up to -60 ° C);
protection of process equipment from negative environmental influences;
protection of equipment and pipelines from the influence of chemically aggressive media;
protection personnel from the negative impact of process equipment and pipelines;
compensation for thermal losses of thermostatted objects;
ensuring pre-launch Preparing technological equipment and stuff.
INSTALLATION ON OBJECT.
Convenient installation / disassembly of thermal covers is carried out by a flexible design using a flexible contact strip. If necessary, thermal covers are equipped with insulated sleeves, providing reliable thermal insulation of both the heating object itself and the adjacent elements of the process equipment and the pipeline.
Thermocovers for valves, gate valves and instrumentation sensors
Explosion-proof thermal covers are designed to create optimal working conditions for process equipment at low ambient temperatures. In addition, thermal covers for valves serve to protect equipment from the effects of weather conditions and corrosive environments. The design of thermal covers for fittings is a flexible casing with electric heating. Thermocovers are intended for use on objects of the oil and gas industry.
Thermocovers for gate valves allow solving the following tasks:
- creation of normal conditions for equipment operation under conditions of extremely low temperatures;
- protection against the effects of atmospheric factors;
- protection against the negative effects of corrosive environments;
- provision of safe working conditions for personnel;
- reduction of heat losses at thermostatically controlled objects;
- creation of conditions for pre-launch preparation of equipment.
Thermocovers for valves are made of modern materials of a wide range. They are selected depending on the characteristics of operating conditions and temperature. In the manufacture of outer and inner shells of thermal covers for valves, technical matter is used. Thanks to a special coating, the fabric gives the product increased moisture resistance, antistatic properties and low adhesion to petrochemical products.
Thermocovers for valves in high-temperature design and special-purpose models provide for a combined multi-layer thermal insulation. For the manufacture of heat insulator used inorganic organic fibers with high vibration resistance.
Thermocovers for valves provide easy installation and disassembly due to their flexible design using contact strip. Thermocovers can be equipped with insulated sleeves that retain the heat of the object and the equipment and pipeline adjacent to it.
CABLES PROTECTIVE WARMED GLASS-PLASTIC
The Kvant production center in the complex delivery offers a ready-made solution: Thermon pre-insulated impulse lines complete with a wired fiberglass insulation cabinet for placement of instrumentation and automation equipment.
Insulated type protective cabinet is a multi-layer case made on the basis of fire-resistant unsaturated polyester resins and glass-reinforcing materials. The surface of the cabinet is antistatic.
To ensure thermal insulation between the inner and outer shell of the cabinet is used foamed polyurethane foam insulation.