Things you need to know about Chlorine Leak Detectors

Water treatment and many other technical processes frequently require the use of oxidising gases such as chlorine or chlorine dioxide. These gases are highly toxic and corrosive. Therefore special precautions have to be taken in areas where such gases are used. The Air is contaminated with oxidising gases will endanger plant personnel and equipment. If employees are revealed to low concentrations of these gases for extended periods, the safety limit will be reached. Higher concentrations gases will affect the respiratory system of the personnel and corrode machines resulting in costly repairs. 

The gas leak detector monitors the contents of oxidising gases in the air, indicates leaks and warns the personnel in plants where chlorine or chlorine dioxide are generated, stored or metered. The unit will initiate a visual and audible alarm if the MAK value is exceeded. The MAK value is the maximum permissible gas concentration in the air of an area where people are working. MAK values are toxicological limit values. 

Description of Operation 

The gas leak detector consists of two crucial items; the detector cell assembly which is connected by means of a coaxial cable to a control box. The detector cell includes two platinum electrodes wrapped by a porous wick. The electrode is partly immersed into an electrolyte reservoir attached and thus kept constantly moist. One stuffing of the electrolyte reservoir is sufficient for approximately one year of continuous operation. The chlorine dioxide gas or chlorine gas be should present in the surrounding air, an electrochemical reaction by depolarisation will take place on the electrode; the electric current produced is proportionate to the gas concentration in the air. 

An increase in the chlorine gas concentration is indicated on the electronic control box which is equipped with an indicator of 0...5 ppm Cl2. The desired alarm level is set by means of a potentiometer having a range between 0...5 ppm Cl2 If two alarm levels are required an amplifier with two operational set points will be used. 

When the gas concentration in the air exceeds the preset value, the leak detector will release a visual and audible alarm and operate an alarm relay. This alarm relay provides a voltage-free single pole double throw contact for use by the customer to actuate safety devices such as a solenoid valve in the gas line or a neutralisation system. 

When the gas concentration drops below the preset limit, the alarm contact will move back to its former position. If the preset value is exceeded for more than 10 seconds, the light emitting diode alarm horn will light and a further relay will be energised. The alarm horn is fixed to the potential free output of this relay. The relay will remain energised until it is reset either by means of the push button on the control box or by an external push button in the customer's control centre. After having stopped the alarm and after the gas concentration has dropped below the preset limit, the contact will automatically be in operating condition again. 

The real functioning of the leak detector may be checked at any time by operating a test button. The test button is provided as a push button with a built-in light emitting diode. 

The combined test button and cell failure alarm light will flash at the following conditions: Electrolyte reservoir empty 

• Detector cell dry 
• The cable between cell and control box interrupted 

An internal circuit board provides for the continuous output signal of 4... 20 mA, 300 Ohms, corresponding to a gas concentration of 0...5 ppm C12. Industrial Devices manufactures also a chlorine gas generator capable of generating adjustable chlorine gas concentrations in the air. This unit is a very practical accessory item for the physicochemical calibration of the leak detector. The detector cell is placed close to the place where the air is to be monitored. As chlorine level is heavier than air, the cell is mounted approximately 350 mm from the floor. 

The ambient temperature should be in the range between -10°C and +50°C. The control box containing the electronic amplifier, the alarm horn and other alarm devices connected to the alarm output should preferably be installed in a chlorine-free room. The distance between the control box and the detector cell may be adapted to the local requirements. While using a screened cable this distance may be up to 100 m. If the distances are more than 2 m between cell and control box, a connection box must be used. 

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The Chlorination Experts

Industrial devices India Pvt.Ltd is the fastest growing chlorination system manufacturers in India , which offers clean water service to its clients . With rapid urbanization all over the world ,pollution level has increased drastically affecting the precious water resources in all the countries.

The chlorinated water purifying technology used by Industrial devices

is known for its quality service. They provide vacuum chlorinator service which

does water purifying in a certain process without any danger of chlorine

leakage. If in any emergency situation there is chlorine leakage then

they have the facility of leak absorption, which absorbs excess of chlorine

released into the environment. The safety equipments which are provided to

mitigate the effects of chlorine leakage and control it, are self contained air breathing apparatus, leak detector, safety shower, eye wash fountain and ventilation fans.

Chlorination of water is needed in many places ,mainly in  areas where there is scarcity of water and impure water needs to be purified by chlorine so that not even it can be used for normal daily purposes but also for drinking purpose. Industrial devices India regularly export chlorinators to countries like UAE, Egypt, Iraq, Iran which are located in dry and arid geographical locations. They have supplied over 5000 chlorination system in India and all over the world. Their chlorination plants ranges from 250 gms/hr to 1000 + Kgs/hr.

The chlorinators which they offer are available in small and large size , with the necessary accessories to be used for the effective and efficient functioning of the system. The chlorinators are used in application areas like in central drinking water treatment systems, cooling water treatment, pharmaceutical formulations among other industrial applications and the  accessories that are used  are aiding valves, chlorine gas filter, contact pressure gauges, pressure reducing valves among others.

The chlorine dosing system is highly effective as it monitors the amount of chlorine needed to purify water as excess of chlorine is also not good for health . It ensures that the measured amount of diluted chlorine is added to water to be suitable for human consumption. The chlorine dosing system manufacturers in India are mainly targeting the semi urban and village areas for supplying the chlorine doser as these areas are suffering for many water borne diseases due to unavailability of clean drinking water.

They also offer gas chlorination system which is mainly used for public sanitation and commercial purposes like in water and sewage, thermal power station or seawater desalination plant. Industrial devices India provides a wide variety of chemical dosing pumps and also professional guidance on pumps and controllers to be used as per the specific requirements of the clients.

The demand for chlorinator manufacturers in India is bound to increase as an acute shortage of water looms in many countries in the coming years. With this farsighted vision, Industrial devices India has the mission of reaching every nook and corner of India so that it can meet the demand of clean water in general public. This service has come a long way and has received acceptance among the Indian people.

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Industrial devices

LEADER IN CHLORINATORS, VAPORIZERS & SAFETY SYSTEMS

Industrial Devices (India) Pvt. Ltd. is one of the leading Chlorination System manufacturers in India. Established in 1980 we have supplied over 5000+ chlorination system in India and abroad.

We are headquartered in New Delhi with our manufacturing facility, administrative office, design office and servicing department here. We also have an office in Chennai, Tamil Nadu. 

The industries where our systems find their applications are numerous. Basically, wherever large amounts of water need to be purified at the least cost, we are relevant. Some such domains are Municipal Corporations, Thermal Power Stations, Public Health Departments, Chemical Paper Pulp Industries, etc. We also regularly export our chlorinators to various countries across the globe like UAE, Egypt, Iraq, Iran, South Africa, Burma.

We design, manufacture and commission Chlorination Plants ranging from 250 gms/hr to 1000 + Kgs/hr. 

Our products include Vacuum Operated Chlorinators, Absorption tanks & towers, Steam or Electrically heated Chlorine Evaporators/Vaporizers, Chlorination accessories like Roller Supports, Manifold, Lifting Beam, Valves etc. We also manufacture other safety items such as Chlorine Leak Absorption Systems, Chlorine Leak Detectors, Emergency Repair Kits to name a few.

The Directors of the company have each been in the field of Water Treatment through Chlorination for more than 40 years.