Hello, this is RS Korea. Today, I would like to tell you about the installation I went to in Hongcheon, Gangwon-do. The facility is an environmental management facility that processes various impurities such as livestock waste and food.

■ Installation product This is FIX800, an installation type gas meter from WANDI, a brand specializing in gas meters.

Up to 5GAS can be installed with one measuring device in accordance with the Occupational Safety and Health Act. The photo on the left is when a single gas is installed, and the photo on the right is when a combined gas is installed.

※ Please refer to the photo above. The display of Wandi Fix 800 varies depending on the number of gases installed. Among over 40 gases, from a single gas to a maximum of 5 gases can be installed when dual sensors are installed, and the installed gases are displayed at the same time as they are measured, allowing you to check the measured values in real time. In addition, when connected to an optional electronic signboard or PLC, you can see the measured values in real time from outside, so you can respond immediately with an alarm in case of danger. The place visited for this installation is a public institution that manages and processes various environments. It is a facility that processes various contaminants such as livestock manure, food, and sediment. Although ventilation is continuously provided during the treatment process, harmful gases accompanied by bad odors are constantly generated in an environment, so we visited to inquire about installing a gas meter for the purpose of worker safety.

Please refer to the image above. The disaster occurred during disposal of contaminants. The causes of the disaster are reported to be four reasons: the tank, which was to be managed after being designated as a confined space, was not designated and managed; non-issuance of a work permit; no record of measuring the concentration of harmful gases; non-implementation of a ban on entry except for workers; non-deployment of inspectors; the air quality inside the tank was detected at 74 ppm, which is 7.4 times the hydrogen sulfide exposure standard of 10 ppm, and carbon monoxide. The oxygen concentration was measured at 23ppm and 19.9%Vol.

To prevent such disasters from occurring, measures must be taken to place guards and prohibit entry by anyone other than workers, and to measure gas concentrations and manage the values in places where the air quality exceeds the appropriate level or where harmful gases are generated. ■ Installation points There are a total of four installation points for the measuring instrument, and one installation point for the electronic signboard. The gas measuring instrument is equipped with two gases, H2S (hydrogen sulfide) and CO (carbon monoxide), which are gases generated during the treatment process, and is configured as a pre-treatment device in an environment with high humidity, which is an environmental factor that interferes with gas measurement. Installation point 1: General processing room

The first installation point is the 'Comprehensive Processing Machine Room'. It is a space with a conveyor that transports food from the loading area to the processing facility, and a shredding separator. Although it is a sealed screw conveyor belt, it is a place with the first sorting process and a comprehensive waste processing machine located close to the loading dock, and it was an environment where bad odors were generated due to inspection and cleaning of the screw conveyor. A measuring instrument was installed on the wall located on the side of the screw conveyor, which is where the most bad smells occur. It is planned.

The second installation point is the 'Automatic Shredder Room'. This is a space where various environmental contaminants classified in the general processor room are shredded. Like the waste disposal room, it was an environment where bad odors were generated, and a measuring device is planned to be installed on the wall located close to the conveyor. Installation point 3: Incoming storage tank.

The third installation point is the ‘importation storage tank’. What is a storage tank? It refers to a facility that can separate more than 80% of solids from sediment, livestock manure, and food discharged from various environments. Simply put, it is one of the sediment treatment processes. The treatment process is concentration - digestion - dehydration - landfill or dumping on the open sea. As one of the processing processes, dehydrated sludge is generated to the extent that it can be treated as solid in the storage tank, and it is a space where dewatering cake, which is sludge with a moisture content of 85% or less, is created. Similar to the installation point above, it is a foul-smelling environment and measures the concentration of hydrogen sulfide (H2S), a gas generated during the decomposition of sludge (sediment). For this purpose, a measuring instrument is planned to be installed on the wall near the pulper mixing tank. Installation point 4: Digester supply pump room

The last installation point is the 'Digester Supply Pump Room'. This is the space where the pump that transfers the concentrated sludge from the storage tank to the digester is located. It is located underground, so the ceiling was composed of grating rather than a completely sealed space for ventilation. However, as with other installation points, a measuring device is planned to be installed on the wall as it is an environment that generates odor. Electric sign installation point: Central control room

You may have the illusion that you are seeing an electronic display board, but please look at it with bleary eyes. We wanted to be able to check the status board in real time inside the office by gathering the measured values of each measuring instrument installed, so we created an 8-channel electronic display board. It is scheduled to be installed on the wall of the central control room located on the 3rd floor. ■ Installation

Installation of the meter is in progress.

In the case of the gas concentration status board, it is necessary to move three floors from the digester supply pump room, which is installation point number 4, to the central control room. The work of sending power lines and communication lines through the cable tray on the ceiling of the compressor room on the first floor was carried out using a gas cable, and there was work at heights.■ Installation completed: General processing equipment room

Automatic crushing separator room

Import storage tank

Digester supply pump room

Central control room - gas concentration status board

Flexible wires were used to protect the externally exposed power and communication wires, and the installation of the measuring instrument and electronic display board was completed. The installation work was completed after the alarm test, trial run, and product information. In a gas measuring environment, when you do not know the gas generated, or when you know the gas generated but cannot confirm the exact concentration, it is difficult to make a choice before purchasing. Through sufficient consultation with experts, you can select the correct product by considering everything such as environmental factors, generated gas, frequency, and concentration. Purchasing a gas meter with a measuring range is the way to be safe. In addition to simple product sales, RS Korea is a company specializing in gas, including self-calibration/domestic repair (A/S)/production/delivery/installation work. We provide 1:1 customized solutions for gas measurement environments based on our experience conducting demonstration / inspection / delivery / repair / installation work in various environments. Summary of today's blog Measurement purpose: Worker safety by process in environmental management facilities where harmful gases are generated Purpose product: WANDI FIX800 4ea / 8 channels Gas concentration status board Gas and measurement range: H2S (hydrogen sulfide) 0-100ppm, CO (carbon monoxide) 0-1,000ppm Installation personnel and time: 4 people 12 hours Other information: - Environmental management facilities that generate bad odors by process Installation of a gas meter (hydrogen sulfide, carbon monoxide) / gas concentration status board - Four installation points in total in the general processing machine room, automatic shredding separator room, import storage tank, and digestion tank supply pump room - The electronic display board consists of 8 channels so that real-time values of the installed gas meters can be viewed - All power and communication lines use waterproof corrugated pipe - Installation of environmental management facility gas meter / electric sign including work at heights by using the cable tray in the compressor room on the first floor This concludes the construction blog. In addition to this, installation and commissioning, If you have any inquiries about on-site repairs or other environmental measuring instruments, please contact us at the number below. ☎ 031-340-6952