Innovative Plumbing

Sanitary device InnoSan — winner of Innovation

At the conference "Energy Security and Climate — a new priority of state policy" organized by the magazine «Facility manager» 16-17 May 2013, in a competition for the best energy-saving equipment was recognized as the winner of the project InnoSan.

Few would dispute that at present familiar to us from childhood sanitary device for a toilet (in common parlance, "toilet") is the most archaic of all household appliances (since 1775 significant changes in the design of this device is not shown). At the same time the importance of the device is very strongly.

Let’s start with the economy. In different countries the water flow to the toilet flushing and cleaning the bowl consumed 15 to 35% of the water consumed.

Take the average of the 25% of water consumption data in Petersburg per person per month (7 m3) — And we find that we spend in the toilet of 1.75 m3. With the price of 1 m3 water of 35.5 rubles (delivery and reception of the drains) that about 62 rubles per person per month. In the year, respectively, 744 rubles. For a family of 4 people using the toilet costs about 3,000 rubles a year. The total consumption of water in the toilets of the city with the five millionth population of about 105 million m3 water per year. Which in monetary terms — 3,720,000,000 rubles annually.

Do not forget about the toilets street, hospital, school, etc. According to the Center for Flow Measurement "Vodokanal of St. Petersburg", the loss of water in this sector amount to about 200 million m3 year. Leaks in the public toilets, reaching 2 m3 on the toilet in the night, as the unreliability caused by fittings and vandalism users. Price of water losses in the public toilets is 7.88 billion rubles, it is paid from the budgets of different levels.

Thus, the total cost is an issue than 11.5 billion rubles. And it is — every year!

The calculations confirm that the issue price is great and deserves attention. Generations of people are born and die, and the situation does not change with seats. What is the reason?

 Archaic device

Let’s describe and analyze the design of the now widely-used a flush toilet (called "compact"). One of the main components of the device — the actual toilet — is a bowl of earthenware, of the pipe to the sewage system.

How can operate this device? Water opening "reinforcement" merges into the bowl under the force of gravity, which is determined by the height of the liquid column in the tank of about 30 cm (early washout), which corresponds to a pressure 0, 003 MPa. The pressure at which the water is water in the riser, where it is poured into a storage vessel, an average of about 0.30 MPa and varies apartment storeys. Assuming that the height of the liquid in the tank is 30 cm, it turns out that 99% of the water pressure, or, in other words, its energy, "thrown out." That is, the efficiency of the system is now used by a flush of only 1% (!).

As a result, the energy sweep stream is insufficient. He has laminar (straight-line) the nature and consequently ineffective.

Especially it is necessary to dwell on the node from which the flow of water from the tank into the toilet bowl and tank seal between plums. Performing, in essence, valve function, this valve assembly is never called. The fact that there is no valve components, such as "socket", which presses the locking member ("spool"), yes and no clamping force sufficient to seal the holes in the bottom of the tank. In connection with this unit euphemistically called a misplaced word "reinforcement". Hence, the result in the location where the water is supplied from the tank when the flushing is always present microleakage.

The economic inefficiency of a flush toilet is obvious. However, the design is so simple that any change in, for example, the use of this valve instead of "reinforcement", the development of a drive to it, or let’s say, the use of pulsed water pump can increase its value many times, which is unacceptable.

As a result, it was decided to start looking for a more efficient (lower flow rates), a fundamentally new technology flushing under pressure and the corresponding design of the sanitary device InnoSan (Innovative plumbing).

Innovation Project

The starting point was negligible efficiency of the device used today. It was proposed to fundamentally change the technology-flush, replacing a flush flush flush under pressure. The magnitude of this pressure was selected based on the minimum pressure which can be rent at the network: 0.15 MPa. That is, the efficiency is increased by 50 times.

It was decided to develop a radically new, small-sized water supply valve from the vessel drive down the toilet, and change the layout of the machine: remove supply valve outside of the vessel stick. Instead of the cumbersome (outer envelope up to 27 liters) of a conventional tank with a lid has been proposed to use small-sized (9-10 l) sealed container drive that implements the principle of reciprocating air pulsing water into the bowl.

Subjected to processing the entire hydraulic circuit. If before it was out of the water tank with a bottom hole in it, but now it is made up of the pressure vessel and the length of the channel inside the specially shaped valve.

Changed and the toilet bowl, as the energy flow coming down the toilet has increased dramatically, and the nature of the motion of the jets in it fundamentally changed.

Optimization of the new device as a whole was carried out designing components, the main criteria were flushing efficiency and high quality of cleaning the bowl at a rate approximately twice lower than in the previous scheme, the amount of water.

The design of the TSA «InnoSan» for the toilet is shown in Fig. 2.

Here, 1 — WC composite material, 2 — genuine indirect diaphragm valve, 3 — Vessel drive air and water type accumulator, however unsplit without separation membrane 4 — sensor drive control microcomputer.

Results achieved:

  1. reduced by about half the consumption of water for flushing and cleaning of the bowl;
  2. improved quality of cleaning the bowl, which excluded the re-wash;
  3. parasitic leakage that caused the loss of water, in principle, excluded;
  4. Vessel-drive is made of stainless steel with the original technology, any "fitting" it does not have;
  5. the vent valve in the vessel drive is absent, as it is the function of the residual air;
  6. the water supply valve into the toilet bowl has a special shape of the channel to flush new technology;
  7. first control device used in a residential area, it became fully automated and self-contained: powered by 4 AA batteries 1.5 V;
  8. use (for the first time in Russian) of the composite material in the manufacture of toilet and storage vessel, stainless steel sheet has reduced the overall weight of the device by 60-70% (8-9 kg instead of the usual 25-27 kg);
  9. was the first to make a completely anti-vandal unit without increasing the cost;
  10. Tap valve that supplies water to the toilet, outside of the vessel drive much easier for operation of the device: the replacement operation of the membrane in it (every five years) may be made by unqualified personnel.

On the TSA received patent number 2,461,684 Russia. TSA was in 2007 declared the winner of the All-Russian contest "Russian House of the Future", held under the patronage of Dmitry Medvedev, but the gover
nment has not allocated for its development dime. Currently, the TSA «InnoSan» came on the market and is made in small batches (see website goldentoilet.ru).

It is estimated that replacing all the toilets in the public restrooms at the new CTS will justify itself in the quarter, and taking into account the environmental component — for 1 month. In the housing stock payback period — about half a year.

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