Discover the secret of sinking

The invention with the name "Submerged Cavity looks deep beneath the water" allows visitors to take dozens of meters deep into the seabed. This is a study by a Vietnamese and patented by the United States.

In the world, a sunken hotel has been built and put into operation, about 5 meters deep in the seabed and called Hotel Hydropolis in Dubai.

Even in Vietnam, if included in the application, everyone has the opportunity to "roam" on the seabed with a device called "Submerged Cavity observing deep below the water". This device by 72-year-old engineer Nguyen Dang Luong is living at address 42, Road 23, Quarter 3, Tan Quy Ward, District 7 - Ho Chi Minh City. The invention of Mr. Nguyen Dang Luong has been granted a patent in the US (2005) and Vietnam (2006) with a patent protection period of 20 years.

Engineer Nguyen Dang Luong, 72 years old is still passionate about research, creativity . (Photo: M. Loan)

Modular submerged by engineer Nguyen Dang Luong invented is a type of diving equipment in the form of single chamber, double compartment used for dozens of people to visit the waters of rich aquatic flora and fauna systems. This "submerged cavity" solution can also be used to design bedrooms, wedding rooms under the aquarium.

In addition, this device is useful for researching and surveying the continental shelf, studying and monitoring the potential of aquatic resources, checking the status of the sinking parts of drilling platforms, submerged pipelines. offshore oil and gas exploitation and other types of water works, monitoring geomorphology and obstacles in the hearts of waterways.

Raw materials used to make "Submerged Cavity" are mainly made of stainless steel and organic glass , can be operated by generators mounted on floats placed on water supply energy by pipeline leading down to the sink, or by solar energy due to the roofing sheets that are mounted on buoys. Floating buoys (depending on the size of the sinking chamber) can be used as a station to be able to go up or down the sink, if you do not like to visit the ocean, visitors can go on the buoy to see the float on the buoy. mounted lights. In the case of danger, the buoy is a sign that is easy to recognize in order to respond promptly.

When putting "sinking compartment" into operation, people use canoes or boats pulled to the sea, taken to the position to dive and then drop to the water. Visitors in the submerged chamber may be controlled by the navigation system posted in the compartment, or follow the instructions of the onshore guide. Under the water, visitors can dive into the deep sea or rise by the current (electric pump) engine.

Submerged cavity tank diagram.

This submerged compartment can only be used for sightseeing on or below the water, but not in the caves because when the sinking submerged under the surface of the water, there must still be canoes under protection. In the case of an emergency, the sink pipe will "suck" guests up if visitors experience health problems.

According to calculations, the aforementioned submerged compartment can dive up to a maximum depth of 400m while the visitors' sightseeing demand (not scientific research) is only about 25-30m is the maximum (currently in Nha Trang service Scuba diving only allows visitors to dive into the sea up to 5-7m).

In addition, "Khoang sink" invented by engineer Nguyen Dang Luong has many new points compared to other submarines, dive cabinets, specifically those who sit in submarines or dive cabinets according to the general principles must breathe. by compressed air while the sinking compartment of engineer Nguyen Dang Luong allowed to breathe freely in the air by a system of gas pipes connected from the sink to the floating buoy on the water.

Mr. Nguyen Dang Luong and two patents, one from Vietnam and one from the US for the invention "Submerged Cavity" (Photo: M. Loan)

The second new point is that the current types of diving cabinets in the world can only accommodate up to 2 people at a price of more than US $ 1 million / unit and only those with good physical strength are allowed to enter the diving cabinets for diving. mandarin And "sinking chamber" invented by engineer Nguyen Dang Luong costs only . USD 50,000 / vehicle and allows people to enter and dive to visit the seabed.

Another advantage is that, compared to existing submarines and submersible cabinets in the world, if you want to communicate and communicate with each other, you must use the only method that is ultrasound, while the "sinking chamber" can still communicate. By phone by antenna mounted on the float. In addition, the submerged module can also detect under the control of obstacles by the review module, while other submarines can do that, but the cost will be very expensive.

On average, the smallest sink compartment module can accommodate 1 person, the average class can accommodate 1 class of teachers and 30 students. Engineer Nguyen Dang Luong said, it is possible to make larger types depending on the demand. According to estimates, when deploying mass production, the factory price of a module will only be equal to the price of a cheap passenger car currently on the market.

Interested readers, can read more details of inventions by engineer Nguyen Dang Luong (English) published by the US Patent Office (USPTO) here.