Sunday, 26 June 2016

Heating elements applications at domestic and industrial scale

Immersion Heaters
Heaters are undergoing innovation every year. The high temperature insertion heaters are used for different industrial applications varying from superheating of gases to titanium metal forming. The heaters made from the great quality materials offer reliable high temperature performance and prolong service.
Standard Applications
Titanium metal forming heated platens, glass forming super plastic forming, fluidized bed superheating gases, superheating air heat treatment and furnaces

The heaters are well designed for applications that need regular sheath temperatures for about 2000oF or 1095oC. External cover is made from Nickel based Incoloy alloy 800 or Inconel 600 in 0.685 inch to 0.935 inch diameters. The elements are made with single, double or triple controllable zones making it fit multiple zone platens.

Heat transfer through radiation results into continued oxidation of the cover sheet and internal side of the fitting. The oxidation develops outstanding heat transfer and enhanced emissivity permitting sheath and process temperatures to be almost same.

Different terminations are made. Configuration of heat resistant materials ensures service up to 842oF or 450oC.

Electric Water Heaters

Electric water heater unit manufacturing units are installed in home appliance segment. The plant investments by Havells go up to millions planning to have a capacity of 5,00,000 units a year. The storage water heaters capacity ranges from 10 – 120 liters. In the new plant, the water heaters will be made in-house.
The plant will make safe and excellent quality electric water heater products. The latest water heaters are expected to grow the performance by 10 to 12% in the coming time. The heaters are made from durable and heat resistant materials for safe use by consumers. These highly safe and long lasting water heaters are environmental friendly. The heaters follow dry powder technology that converts into uniform glass line coating as soon as it is backed at the elevated temperatures about 850oC. It avoids the tank from corrosion, providing prolong life in the hard water conditions. The heating elements include Incoloy 800 steel that are glass lined to withstand any water condition. These water heaters are CFC free made featured with PUF installation in air conditioned environment for nominal standing loss and highest energy efficiency.

Tankless Water Heaters

The toxic materials and chemicals resent in the work places pose great risk to worker’s eyes and whole bodies. Every day around over thousands of working people report for eye related issues and need medical assistance. Eye issues cost several hundred million dollars every year for medical treatment and compensation of employees. In many cases wearing safety glasses and safety clothing are not useful, quick flushing of eyes and skin is crucial here. It is essential for the workplaces to be equipped with emergency equipments with required plumbed emergency fixtures like eye washes, face washes and drench showers, perfectly configured and ready to be activated immediately.

Emergency active Job site evaluation:
The installation of plumbed emergency device starts with the full analysis of workplace to find the high risk areas, major problems and emergency needs. Majority of these analyses are conducted every year to validate the site environments and risks have not changed and the emergency devices are in the ideal condition. Many equipment providers offer free job site analyses and are helpful in evaluating major issues.
To commence, the facility managers require to find the kind of protection required. Few places may find risks due to particles spread by grinding, sanding or machining processes, here portable eyewash systems are required. If chemicals are utilized in the facility, an employee could be attacked by a corrosive chemical or interacted to chemical vapour and hence require access to shower to clean their whole body.
The hazard level is evaluated to ensure suitable product selection or safety of health counsellor can be called during employee selection procedure.

Equipment Type-

After finding the factors of major hazards, the emergency eyewash and drench shower requirements can be evaluated.

Benefits of emergency eyewash units
1.       Perfect for spills, dust, debris removal that affect the eyes
2.       Offers a controlled flow of water to eyes
3.       Delivers continuous supply of lukewarm water for 15 minutes. Large volume of water can also be supplied such as 2- 5 gallons a minute.

Uses
1.       Used when the whole face is about to be affected by spills, splashes, dust and debris
2.       Washes eyes and face together
3.       Offers a large supply of water to clean face completely.

Drench showers
1.      Used to clean large body areas that are at risk
2.      These clean a large area of body however are not suitable for the eyes
Water temperature
ANSI needs a 15 minutes flow of lukewarm water be supplied to emergency device and refers an incoming water temperature between 60oF to 100oF. Thermostatic mixing valves combine hot and cold water to a specific set point and send tempered water to emergency fixtures. There are on demand water heaters made to offer water to emergency fixtures. IF the tempering design includes the selection of a TMV, valves are used that are emergency thermostatic mixing valve with a cold water bypass and not a standard valve.
When choosing a tankless heating unit, it is essential to seek for a system that has been particularly made for use in emergency eyewash and drench shower units, as they consist of additional safeguards to avoid scalding of an injured employee. It is recommended to use systems that have a small pressure drop. Units with this capacity will curb potential post installation problems because of sudden pressure fall, resulting into nominal pressure at the fixture. It is recommended to look for a tankless water heater that utilizes an Incoloy sheathed heating element to secure internal parts and offer prolong life.
Latest shower technology
Latest, many enhancements have made to flow control, coverage, and efficacy of eye and face washes and drench showers. The latest face and eye wash equipments deliver more uniform and complete rinse pattern to access the full face.
By using fluid dynamics technology, the latest shower designs work with a pressure regulated flow control and the spinning movement of water, developing a spray pattern to clean the injury fast and completely. The contoured shape paired with the water funnels the drench in a concentrated, soft deluge to ensure a suitable flush.
Due to sluggish water remained from needed weekly testing, tampering and other misuse by employees, eye/face washes can become contaminated with dirt and bacteria. Latest eyewash designs come comprised with either plastic or stainless steel dust covers that secure the whole bowl and include self draining to prevent the stagnant water in the device.
As emergency shower options continue to evolve and protection staff have better options for evaluating worker security. Consultation with a 3rd party protection consultant and emergency device product manufacturer can help develop a firm security plan fulfil with suitable plumbed emergency equipments. 

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