HRP20000433A2 - Hot and cold water distributors in a solar system (without tank-exchanger) being a combination of the existing and new installation - Google Patents

Description

The field to which the invention relates

This invention refers to manifolds hereinafter referred to as "Pear" (3L, 3T, 2L, 2T) which have built-in corresponding standard three-way valves Fig. 13, Fig. 14, Fig. 15. The invention is also a system for solar water heating in the following to the text "Iris" and represents a combination of new and old installation. The new part of the "Iris" system is being upgraded to the existing plumbing installation, and its most important parts are: the direct solar collector-tank and the distributor "Kruška". The "Iris" system is a system for solar water heating without an additional tank-heat exchanger.

By the term Direct collector tank - I will refer to a direct collector made according to the do-it-yourself principle fig.9, or a direct collector of the maximum volume that can be found on the market.

Technical problem

For years and years there has been the problem of how to easily connect an optimal solar system to the classic existing water installation in houses. Until now, connection has required major works on the building, procurement of a hot water tank-exchanger, and a complicated management method or the use of expensive regulation. A new tank-exchanger, masonry works, and pumps with regulation account for the largest part of the total costs.

State of the art

In the existing technology, there is a huge number of solar system solutions in combination with the existing technology of the classic way of heating water with the help of electricity (hereinafter referred to as "boiler", B) either in the "Direct system" (direct collector, direct tank - exchanger) or in the "Indirect system" (indirect collector, indirect tank-exchanger), with or without the use of pumps, and a huge number of ways of managing or regulating the overall system, with a large number of elements in the system.

Not a single system provides the ease of connection to the existing installation, the ease of management, and the way of using it than the pre-existing electricity. boiler as the "Iris" system. The use of existing boilers in combination with a direct collector-tank enables the construction of a solar system without an exchanger-tank.

"Pear" distributors should not be compared with mixing valves (mouse), of any type and manufacturer. Pears (3L, 3T, 2L, 2T) do not mix water, but separate it. They are splitters. If they were to be compared with hydraulic distributors, they would be labeled 6/3 or 5/3, although their function and purpose are different fig.6, fig.7.

Presentation of the essence of the invention

With the manifold, with the help of different combinations of the positions of interconnected three-way valves fig.16 a,b,c,d, we achieve three realistic water flow sequences from the source, as cold (V), to the consumer (P), as hot. A good connoisseur will notice an even greater number of possible combinations of different positions of the three-way valve in "Kruške" (3L. Fig. 11, 2L Fig. 12, 3T Fig. 13, 2T Fig. 14), which can essentially be achieved by moving (removing) the stop on three-way valves. There are more possible combinations of three-way valve positions than we realistically need.

The originality of the invention is also the placement and connection of the distributor "Kruška" compared to the old installation fig.2.

a) Attracts the target:

The primary goal of the invention is to enable all three realistic possibilities of hot water production, in a combination of solar and electric heating, the use of already existing boilers as flow tanks of solar heated water and the possibility of partial maintenance (repair) of the system, if necessary. Profitability is high even with low-productivity do-it-yourself collectors.

b) Secondary objective:

The secondary goal of the invention is to achieve a low cost of the solar part of the system and a low cost of connection to the existing water installation. The simple design of the solar part of the system, which consists only of a direct solar collector-tank with a simple installation (insulated lines from the distributor to the collector-tank) and the ease of installation make the price of the solar part of the system and the connection of the solar part of the system to the existing installation many times lower than with known system on the market because it does not need a tank-exchanger, and for simple installation and connection we use one of the "Kruška" manifolds.

c) Further goal:

A further goal of the invention is to enable the use of solar energy with "input" costs that are returned in several times shorter time, because the ratio of the invested value and the value of the obtained energy is 3-4 times lower than the same most favorable ratio for existing systems on the market.

d) Additional goals are:

1. simple connection of new high-quality solar collectors to the already existing home water installation because it is not necessary to carry out construction interventions.

2. simple connection of already existing and used solar collectors of low utilization from "homework" which until now have not been connected to the home water installation. There are a huge number of them in the area of Dalmatia.

3. due to the simplicity of connecting the "Pear", this work can be done at home using the "do-it-yourself" principle.

Brief description of the drawing

PHOTOS:

a) location of distributor "Kruška" 3L

b) the inside of the distributor "Kruška" 3L

SKETCHES:

Sl. 1. Possible placement of solar collectors

Sl. 2. Location of the collector and distributor in relation to the existing water heater.

Sl. 3. Three-way valves T and L

Sl. 4. Functional view of the three-way L-valve

Sl. 5. Functional view of the three-way T-valve

Sl. 6. Functional view of the distributor "Kruška" 3L

Sl. 7. Functional view of the front panel, manual grippers of the three-way L-valve of the manifold "Kruška" 3L

Sl. 8. Presentation of the use of the distributor as a connection between the old and the new installation at:

a) system with direct collector and direct exchanger - tank

b) system with indirect collector, indirect tank exchanger, without pump

c) "Iris" system (system without exchanger) with direct collector - tank.

Sl. 9. Solar collectors - tanks with reflectors connected in series (V=160 l) used in the motorhome

Sl. 10. Illustration of the use of the distributor 2L and 2T as a connection between the new installation and the old one in systems with 4 existing boilers.

a) system with direct collector and direct exchanger - tank.

b) system with indirect collector, indirect exchanger - tank without pump.

c) "IRIS" system (system without exchanger) with direct collector - tank.

Sl. 11. Assembly view of distributor "Kruška" 3L

Sl. 12. Assembly view of distributor "Kruška" 2L

Sl. 13. Assembly view of distributor "Kruška" 3T

Sl. 14. Assembly view of distributor "Kruška" 2T

Sl. 15. Some of the larger number of possible different ways of mounting and managing the distributor.

a) distributor "Kruška" 3T

b) distributor "Kruška" 2T

Sl. 16. Mutual position: valve balls, valve handles and handle "catchers" on the manifolds

a) "Pear" 3L

b) "Pear" 2L

c) "Pear" 3T

d) "Pear" 2T

Sl. 17. Display of catchers and control mechanisms on distributors: "Pear" 3L and 3T

Sl. 18. Display of program "plates" on distributors: "Pear" 3L and 3T

Sl. 19. View of handle catchers on distributors 2T and 2L

Sl. 20. How to use PVC ducts and PVC insulation for main and auxiliary lines

A detailed description of at least one way of realizing the invention

The following description of the use of the invention refers to fig. 10 c, that is, to the use of the distributor "Kruška" (2T), with two T three-way valves, in a system with 4 already existing electric. water heater in a facility that has 4 apartments for rent, home-made collector-tank design with lines (inlet and outlet) measuring 3⁄4" or Ø 20. Further description of the method of realization of the invention and its application may also refer to the solar heating system water with "old boiler" and: direct collector and special tank-exchanger fig.10 a; indirect collector and tank-exchanger fig.10 b, with or without a pump, the new parts of which are connected to the old ones with the help of "Pear " (3L 3T) fig. 8a,b.

The description is also based on the experience of the obtained parameter values of the water heating system built in the private auto-camp "Iris", on Srima, near Vodice, of which I am the owner. The installed system is using the distributor "Kruška" (3L). Through the distributor, two collectors-tanks are directly fed with cold water, fig.9, connected in series with the existing electricity. boiler with a volume of 80 1, and the existing installation with 3 consumers of hot water via mixer taps (two showers and one sink).

Fig. 10 a, b, c show 3 systems with 4 boilers. The "Kruška" 2L or 2T manifold is used for connection:

a) with a direct collector and with an exchanger-tank, with or without a pump.

b) with indirect collector and exchanger-tank with or without pumps.

c) with direct collector-tank (without pump and without exchanger)

In winter, the systems shown in Fig. 10 c have enough surface area on the collectors for the use of solar energy only by the owner of the building. Upgrading the installation per building should be done with the help of PVC pipes and PVC channels in combination with pipe supports inside the channels as shown in Fig. 20.b. For passages through the building, maximum use should be made of the ventilation openings that most buildings have. In the case of the example in fig. 10 c, the collector-tank (do it yourself) is placed fig. 1, at an optimal angle and facing south with a total of 160 l. volume, fed, for example, by 3⁄4" galvanized pipes with a 3⁄4" main line and 1⁄2" auxiliary lines (they should not be longer than two meters), and if necessary, a 1⁄2" return line , and a very small capacity pump. With a good choice of thermal insulation of the main and auxiliary lines, and a short distance to consumers, it is not necessary to install the specified pump, which simplifies the system even more, makes it cheaper and makes it independent of the electrical installation. If we install a pump, it will be controlled by a thermostat that is installed in front of the last consumer-boiler in the system, and it will turn on the pump if the difference in temperature between the specified place and the peak water in the collector is greater than 10 degrees. All pipes are insulated with standard PVC insulation. The hot water from the collector flows through the main water and in the example with the pump it returns to the collector (upper warm layer) and if the temperature difference is greater than 10 degrees, in case of activation, for example, of boiler 1 consumer, and the distributor is set to the position, V-S-B-P which is the most common position, (the other positions are taken in case of the need to empty the boiler or collector), hot water will flow from the solar part of the installation through the distributor to boiler 1 and there, if it is warm enough (in relation to the desired temperature set by the boiler thermostat which we set the "optimal" setting, and in my experience it is (30 degrees), to compensate for the used water from the top of the boiler. The water entering the boiler, in this case warm from the collector-tank, will quickly occupy the upper level in the boiler. In this way, each already the installed and existing boiler acts as a tank of hot water obtained in the direct collector-tank. Collectors, boilers, the distributor under each boiler, and all accompanying elements make up the "Iris" system. with the boiler system, we have 4 partial tanks with the possibility of additional heating (existing boilers) of hot water, if necessary.

The "Iris" system, in situations where we decide for only solar or only boiler water heating, enables simple and quick emptying of the collector-tank or boiler.

Boiler emptying ("Kruška" distributor 3L, 3T) Fig. 8c

The distributor is placed in the VBP position. The existing valve A is closed and the water heater is emptied via the overpressure-safety valve D. At the same time, irradiation is carried out via the hot water valve on the mixers. After emptying the boiler, place the distributor in the VSP position and open valve A.

Emptying the collector - tank (distributor "Kruška" 3L, 3T) Fig. 8c

The distributor is placed in the VSP position. The main valve of bathroom C is closed. Opposite valves are opened on the mixer of the sink and the shower (with the mixer on the higher level, the valve for hot water, and on the lower one, for cold water). If the mixers are at the same level, the system water is in a position of "labile equilibrium". By gently blowing (impulse to disturb the balance) into the mixer to which the hot water is open, the system begins to empty. After that, we place the distributor in the VBP position and open the main valve C. In the case of multiple boilers and distributors "Kruška" 2L or 2T fig.10 a, b, c, the valve on the main supply line (D) must have the possibility of opening for water discharge . Further procedures are very similar to those described.

On an average sunny day, the described system enables a sufficient amount of hot water for consumption and finally "storing" enough hot water in the boilers for night and morning needs, because the highest consumption of the average guest is: showering when returning from the beach, before going out in the evening, and spending hot water after meals. If there is not enough hot water to be kept in the boilers for the night and morning on the days of reduced solar energy, the boiler will most likely heat up the water during "cheap electricity" times during the night.

The distributor "Kruška" enables autonomous control of each water heater. By setting it in the VSP position, we will consume hot water only from the solar part of the system if, for example, an electrical repair is needed. boiler, (in the mentioned system installed in practice last summer 70% of the time the system was able to function that way).

Most often, we install distributors in the VSBP position. In case we cannot or do not want to use hot water from the solar part, we set the distributor in the VBP position.

Based on experience with high-quality collectors-tanks (well insulated), with a capacity of 2x80 l well insulated lines, we can set the distributor to the VSBP position with the switch on the boiler turned off or by setting the boiler thermostat to 0 C or maximum to the temperature of a pleasant shower (30°C).

Hot water in the camp was used by 30 people throughout the day for 30 days during 8 (eighth) months. In the aforementioned case of a house for rent with a total of 4 classic boilers, the capacity of the house is max. 25, and a minimum of 4 people (guests + owner), which would mean that during the pre-season, season and sub-season (6.7.8.9 months), the system is used by a minimum of 12 people, and the owner (4 people) throughout the year. Based on the price of the new part of the system and today's price of electricity, the installation of the system enables the owner to return the investment within (2-3) years.

Based on the description, it can be determined exactly what I am seeking intellectual property protection for, namely:

- manifold "Kruška" 3L Fig. 11

- distributor "Kruška" 2L Fig. 12

- distributor "Kruška" 3T Fig. 13

- distributor "Kruška" 2T Fig. 14

overall solar hot water heating system "Iris": as a combination of new installation and old installation, without an additional tank-exchanger, and with the utilization of already existing el. boiler as a tank fig.8, fig.10 a.

I AM LOOKING FOR A PATENT FOR THE DEVICES "KRUSKA" 3L, 3T, 2L, 2T AND THE "IRIS" SYSTEM

Method of application of the invention

The mentioned inventions enable permanent and useful devices as well as the construction of a permanent and useful system for solar water heating. The devices enable significant improvements when connecting the solar part to the old installation and when managing that system.

The system enables efficient use of solar energy without installing an additional tank and heat exchanger. It will be obvious to experts that numerous modifications and changes could be made to the devices themselves, eg fig. 15 a,b, but also to solar water heating systems using these inventions without leaving the scope and spirit of the invention.

Claims (1)

1. Hot and cold water distributors in the solar system (without the exchanger tank), which is the sum of the already existing and new installation, according to the direct solar collector system with or without a direct heat exchanger and the classic previously installed electric boiler system with its own installation, indicated that the manifold composed of mutually dependent three-way valves mechanically controlled and located between the existing electric water heater and its connections on the wall forms a connection that connects two systems into a single system where the existing electric water heater takes on the role of a direct tank-exchanger with the possibility of electric reheating of water heated by the sun, connection ( distributor) with a certain mutual position of the balls of the three-way valve enables individual operation of only the solar part or only the boiler (electrical) part and the process of emptying one part of the system, after which the remaining part can function separately.