Military Review

The line of modern pressure chambers BKD

One of the latest developments of Tetis Pro is the BKD-120T pressure chamber with a diameter of 1200 mm. Recall that the first pressure chamber of this type was produced in May 2014, and successfully passed the certification of supervisory authorities. BKD-120T has all the necessary certificates and is now being mass-produced.

In 2014, fifteen BKD-120T pressure chambers were made and delivered to customers as part of various types of diving complexes.

It should be noted that the pressure chamber can be supplied in two versions: with a certificate of conformity of the Technical Regulations of the Customs Union (hereinafter TC TR) or with the certificate of the Russian Maritime Register of Shipping (hereinafter RS).

Package of the pressure chamber, i.e. saturation with various systems and equipment, differentiated depending on the requirements of the Customer. At the same time, regardless of the configuration, BKD provides the necessary degree of safety during diving operations and the possibility of upgrading during operation at the request of the Customer.

Upon the completion of the development, production and mastering of serial production of pressure chambers of the BKD-120T series, it was decided to continue the development work (R & D) aimed at creating a line of pressure chambers of various sizes. So in April 2015 of the year were manufactured diving pressure chambers BKD-1000T (internal diameter 1000 mm) and BCD-1600T (internal diameter 1600 mm). New pressure chambers also meet all modern safety requirements and have a certificate of TR CU.

The CU TR certificate is a new authorization document, replacing previously issued by the Federal Service for Technological, Environmental and Atomic Supervision with the use of the product. Today, the pressure chambers produced by Tethis Pro are the only ones in Russia that are certified in accordance with the CU TR. This allows the delivery of pressure chambers, both separately and as part of various diving complexes in the Russian Federation, the countries participating in the Customs Union, as well as countries that will become members of the union during the certificate validity period.

Development and manufacture of pressure chambers - hard and responsible work, behind which there is a whole staff of specialists: designers, technologists, welders, painters, fitters, electricians ... And each of these specialists is personally responsible for the product being manufactured, ensuring safety during diving works and , ultimately, for the life and health of divers. Each pressure chamber of its own size has its own individual characteristics, which are taken into account in the design and further manufacture. Of course, the experts reading this article understand that the smaller the diameter of the pressure chamber, the more difficult its project. After all, it is necessary with a small diameter not only to meet the requirements for safety and ergonomics, but also to saturate the pressure chamber with all the elements of life support systems. And when designing pressure chambers with a diameter of 1600 mm, there is an opportunity to place maximum emphasis on ergonomic indicators and freely place the elements of life support systems.

It is worth noting that the Tetis Pro specialists carried out serious work in the field of safety equipment for pressure chambers. Including hatch supports were developed using sparkless materials, electrical connectors were selected, providing more than 100% a guarantee for protection against electric shock. All electrical equipment that is inside the pressure chamber has a safe voltage - 24 B, and a special non-toxic paint is also selected. Mattresses and pillows are made of special non-combustible and non-burning materials.

The same applies to the placement of external control systems for the pressure chamber operation - gas supply consoles for the pressure chamber, elements of the power supply system, water fire extinguishing system and others. All systems have an intuitive interface and are easy to manage. In the design and manufacture of pressure chambers of the BCD series, all the recommendations and wishes of the professional community were taken into account. And we hope that the pressure chambers will be appreciated by divers.

The line of modern pressure chambers BKD

One of the latest developments is the two-compartment in-line decompression pressure chamber BKD-1600T. The chamber contains two inlet and two transitional hatches with a diameter of 700 mm, two medical gateways for the transfer of food, medicines, etc. (one for each compartment) and two safety devices to ensure safety under the condition that the pressure inside the pressure chamber increases above working . Each compartment, depending on the task, can perform the function of the main or airlock compartments, that is, the prechambers. The pressure chamber can be equipped with a modern water fire extinguishing system, which is installed outside and includes two water tanks for supplying water to each compartment, fluid supply, control and monitoring systems. Inside the pressure chamber are mounted pipelines with nozzles for spraying water. Activation of the water extinguishing system can be carried out from inside the pressure chamber, from the pressure chamber control panel and from the water extinguishing system control panel.

In pressure chambers with a diameter of 1200 and 1600, a flange according to DIN13256 standard is provided for connecting a transportable pressure chamber at a pressure of no more than 5,5 kgf / cm2. In addition, with the BKD-1600T pressure chamber, the docking flange can be installed on either of the access hatches or on both hatches.

Pressure chambers of the BKD series:

Designed to ensure the safety of work and descents carried out under excessive pressure of the external environment, as well as for the treatment of specific diseases associated with the work of divers, divers, coffered workers and people affected by natural and man-made accidents;
Can be installed on ships or vessels as part of ship diving complexes, on vehicles as part of container diving complexes, as well as in the stationary version.

The entire line of BKD pressure chambers was presented at the International Navy Salon (IMDS-2015), which ran from 1 to 5 in July 2015, in St. Petersburg, on the territory of the VC “Lenexpo”.

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  1. itr
    itr 18 July 2015 06: 51
    I don’t understand anything about this, but it looks decent
  2. estixnumx
    estixnumx 18 July 2015 07: 33
    Great thing, just when you do not need to be near. Even there are collapsible pressure chambers, they are more interesting. Extremely necessary unit for providing diving descents. In Sevan, one of the EMERCOM divers during the search for the drowned man flew from a depth of 25-30 m (the guy had the first lifting operation), they couldn’t shock him back to emergency decompression by 5 m. A boat with a pressure chamber was on the other side of the lake 20 km by water, the second pressure chamber in Yerevan was 60 km. In short, the guy received kidney failure, cerebral edema died a year later. So the thing is extremely necessary. Old Soviet models are already mostly killed, while bourgeois ones are too expensive.
    1. sub307
      sub307 18 July 2015 10: 13
      "In short, the guy got kidney failure, the brain edema died a year later." And all because the descents were made with the gross violation of the rules of the diving service - the pressure chamber was inaccessible. Well, there are "wild divers - extremals" having fun, their own business, but in the Ministry of Emergencies, professional divers ... it's strange.
      1. estixnumx
        estixnumx 18 July 2015 10: 47
        In Soviet times, in the Autonomous Soviet Socialist Republic this was not paid attention to the whole Sevan there was only one diving boat. Plus, the height of Lake Sevan is 1900 m above sea level (the maximum depth is up to 95 m now, up to 50 years to 120 m), therefore the risk of DCS is very high even for professionals. The main depths in Armenia are about 20 m. There the risk of CST is very small. For example, we can give an example of how a tragedy occurred in Yerevan on January 8, 1974, only after which a pressure chamber arrived in the Autonomous Soviet Socialist Republic. In addition, we have only one professional rescue diver in the Ministry of Emergencies, whose name is Vardan. In addition, there is a PADI Instructor, the rescuer who died was just OWD. Our main specifics are mining and rescue operations, rescue during earthquake and fire fighting.
    2. The comment was deleted.
  3. Bort radist
    Bort radist 18 July 2015 08: 25
    For the first time I came across a pressure chamber, or rather, its absence, in urgent. All crews had to check in conditions of a depressurized cabin. But since there are no pressure chambers, we were put into the AN-12 cargo compartment and raised to a height of 5000 meters. The state of little pleasant when coming down tortured ears to blow. So, as in space and aviation, these units are necessary. Submariners how to do without them are generally incomprehensible.
    1. estixnumx
      estixnumx 18 July 2015 10: 54
      The pressure in the submarine is constant atmospheric. But in case of emergency exit on the turnip buoy, you need to do decompression stops every meter for 1 minute at a depth of more than 20 m. In addition, there was always one permanent pressure chamber and 2 collapsible ones for a total of 5 people at Spasbots. A large marine lifeguard was equipped with a decompression cabin. By the way, not all military airfields in Soviet times had cameras. they only went to the state under the OMB of army submission. Only the fleet was equipped with them.
  4. wanderer987
    wanderer987 18 July 2015 20: 56
    All this is great, that they paid attention to the topic of pressure chambers, but the most important thing is that they are purchased in sufficient quantities and properly maintained during operation, because you can kill anyone who is illiterate and careless, and whom God forbid.
  5. derik1970
    derik1970 18 July 2015 21: 51
    the thing is necessary, but all this needs to be done in Russia from the very last nut right up to the finished product ... on some of our vessel, they put it generally bought in the west, somewhere on the site there is information and the beavers were drank ...
  6. wei
    wei 19 July 2015 01: 05
    a good thing and definitely necessary
    fire extinguisher "killed" sad if in such a volume to ziggle with him ... although they have calculated everything, I hope recourse
  7. chelovektapok
    chelovektapok 19 July 2015 20: 16
    Nothing is so bandura. One minus and AWESOME. This machinery is multi-seat and cumbersome. To mount such even on a decent ship is a problem. It exists in the form of a prototype and in all senses is EXTREMELY EXCESSIVE. 1-1,5 atmosphere is enough to de-cool a swimmer. (this sets 5,5 kgf / cm2). Nahua? For example: like a bottle of soda. Under pressure. When opened, the pressure becomes equal to atmospheric. The blood "boils" and aeroembolism occurs in the vessels (decompression sickness). The bubbles block the blood flow. It is eliminated by placing a person in an overpressure environment. The bubbles dissolve in the blood. Then a gradual decrease in pressure within an hour (minimum). A pressure chamber as a means of rescue should be on every ship of the diving service and the Ministry of Emergencies. AND IT WAS! Pressure chamber IRTYSH - in the form of a sliding "accordion". Arrangement in the form of a stretcher, weight 80 kg. about. How many lives I saved. Written off as an unnecessary item. Now it is impossible to apply, it does not correspond to official concepts. From available and manufactured COMPLETELY FROM RUSSIAN COMPONENTS. Pressure chamber BLKS-3. Plant named after Khrunichev. Weight - about 500 kg. It is quite applicable in the Navy. But these are oxygen pressure chambers, although the principle and meaning are the same. Subject to safety rules, they are applicable and safe. The world practice has proven the futility of multi-seat pressure chambers. Single is more logical and safer. The fire extinguisher is there, like a hare's fifth leg. After the fire in the pressure chamber, no one has yet survived. And there were many and different cases. Iffche- pressure chambers are one of my many professions.
    1. Samuil
      Samuil 21 July 2015 09: 15
      Pressure chambers similar to BKD (MPC, RKUM, etc.) are intended not only to provide diving operations, but also for training descents, as well as for the treatment of victims of decompression illness or lung barotrauma. In such pressure chambers, a diving doctor can be close to a patient during treatment, in addition, treatment with a long stay method and not only air modes, but also helium modes is possible. A pressure chamber is required! Such pressure chambers are mounted not only in a stationary form, but also on diving boats and automobile chassis. For example Single transportable pressure chambers are intended only for delivering the victim to a "large" pressure chamber for treatment. BLKS is a very dangerous chamber - pure oxygen imposes and obliges. Pressure chambers similar to the BKD are equipped with equipment for breathing pure oxygen for treatment with the HBO method, in addition, it is possible to supply various respiratory gas mixtures to the masks.
  8. estixnumx
    estixnumx 19 July 2015 21: 05
    This model is stationary for hospitals; pressure chambers are also needed there. They are very useful for various respiratory diseases. Single are convenient for diving. The question of backfill if submariners from 30 m tried to get out of the submarine in buoy-turnip in stormy weather, it was ripped off and 10 submariners were thrown to the surface. Therefore, multi-seat pressure chambers on marine lifeguards are very necessary. In addition, an interesting area is multi-day cessation diving for work at the bottom at depths of 100 or more m. Then divers need to decompress the chamber within a few days. So all types are needed based on the tasks that need to be performed.
    1. chelovektapok
      chelovektapok 19 July 2015 21: 29
      Often 10 people are ALIVE, as you say, "thrown" on the horizon? Unfortunately, more often - there is nothing to help if from DEPTH. Have you visited our Russian hospitals for a long time to build multi-bed hospitals there? I will say that in Moscow a prototype has been gathering dust for 10 years. Singles are declining all over the place. In a single room for several people, if necessary, a "carousel" is arranged for half an hour - purely to remove the sharpness. Further, as the doctor ordered. The minimum set of sessions is 10 days per hour. It is of course, and to Mars and the Moon and deeper than 100 m. Everything is possible! So far, the "front of work" is only negative in real life ....
      1. estixnumx
        estixnumx 20 July 2015 17: 44
        I agree with you that this is not a private clinic where all this is there but not accessible. I was not in Moscow hospitals, but I was in the district hospitals of Armenia also very sad. Carousel is good but ineffective, I'm like a person with honey. By education I say this removes the sensation, but does not solve the problem, like all modern medicines that mask the disease, rather than treat it. As the saying goes - that the main task of medicine is to entertain the patient until nature cures him ....