RO130782A2 - Cooling system with peltier cells integrated in wall-mounted thermal power stations - Google Patents

Abstract

The invention relates to a cooling system with Peltier cells, integrated in wall-mounted thermal power stations, which provides heaters cooling during hot season, using cooled water taken from a heat exchanger attached to the cold part of Peltier cells. According to the invention, the system consists of a heat exchanger (9) which has two circuits, i.e. a circuit for cooling the heaters and another circuit for water cooling, a series of Peltier cells (8) attached to some heaters (29), a cell heat discharge system using a pipe (28), some direction valves (22) and a fan (23), where a pump (11) of the wall-mounted thermal power station ensures the circulation of water for heating or cooling some heaters (14), the cooling or heating circuit being set by means of a computer (7) and some direction valves (15 and 26) controlled by some actuation systems (16 and 25).

Description

COOLING SYSTEM WITH THE CELTIER INTEGRATED IN THE THERMAL HEATING CENTERS

The invention relates to a Peltier cell cooling system integrated in the wall-mounted thermal power plants with the main purpose of ensuring the cooling of water in radiators during the summer in order to cool the house and additionally for cooling the domestic water.

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Currently, the cooling of homes with areas of up to 150 no is provided through 11, 21 air conditioning installations or in rare cases with air conditioning installations. These installations work with freons and include a compressor that ensures the increase of the pressure of the refrigerant in the gaseous state and implicitly of the temperature. From the compressor the freon passes through a filter element that retains the impurities and reaches a heat exchanger called a condenser. The condenser is provided with fins that in contact with the air cool the freon which through an isobaric-isothermal process condenses so that at the exit liquid freon is obtained. Due to the pressure provided in the system, the circulation of the liquid freon causes it to pass through a very small diameter pipe producing an iso-penthic lamination phenomenon. The liquid freon then enters a vaporizer in which a relaxation of the agent and an isobaric-isothermal vaporization takes place. The vaporizer is also a heat exchanger and has the lowest temperature. An air stream passes over the evaporator being directed to the cooling room. After vaporization, at the exit the freon reaches gaseous state and the cycle resumes.

The disadvantage of the presented solution consists of: the existence of a specially designed air conditioning system for each room; the air conditioning system is complex; electricity consumption is significant compared to other consumers; cold air currents are mainly directed to the area; cold air in the form of a current valve can affect health; Freon even modern ones (CFCs) can destroy ozone; large investment and periodic reviews.

The technical problem to be solved by the invention consists in the creation of a cooling system integrated in a wall-mounted thermal power station, which ensures the cooling of the water for radiators and the domestic water with the help of Peltier cells, for all rooms in a house.

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The Peltier cell cooling system integrated in a wall-mounted thermal power station eliminates the disadvantages by eliminating the air conditioning system, no longer presents a danger of destroying the ozone blanket, ensures a uniform cooling of the dwellings by artificially lowering the temperature of the heaters. in hot weather.

By applying the invention, the advantages are obtained:

- the beneficiaries have an efficient natural gas heating system in winter but additionally a heating system for heaters is integrated into the mural thermal power plant;

- the cooling system integrated in the wall-mounted thermal power plants leads to the elimination of the need to purchase an installation for conditioning, so there is a significant reduction of the expenses;

- constructive simplicity; no further modifications are made to the existing heating system;

- eliminates the creation of cold air currents that drive through rooms that affect health (headaches or cervical pain, colds, etc.) for the vast majority of users;

- the electricity consumption is significantly reduced because the Peltier cells are supplied with direct current, consuming a maximum of several hundred watts per piece (3 J in a cc while the air conditioning systems have a nominal consumption [4] of more than 1.1 kW;

- Peltier cells, although operating intermittently, have a 20-year guarantee, much longer than the life of an air conditioning system.

The following is an example of an embodiment of the invention, in connection with Figure 1, which represents the principle diagram of the Peltier cell cooling system integrated in a boiler.

Peltier cell cooling system integrated in a wall-mounted thermal power plant (fig. 1). according to the invention, it is composed of a manual or digital control block 1 which can provide several functions. Thus the reset function is provided if the button 3 is in position 2, the cooling function with the Peltier cells (or supply of cool water) position 4, the gas heating function position 5, the hot water function 6 by using the gas boiler. Position 0 corresponds to the closing of the wall thermal power plant. The operation of the wall-mounted boiler for domestic hot water supply, heating in winter time and according to the patent application for the insurance of the cooling of the radiators is coordinated by the computer 7 which is connected to all the elements of the automation.

The heat sink cooling in accordance with the invention contains one or more Peltier 8 cells (controlled by the driver 30), bonded by means of a good heat-conducting thermal paste to the radiators 29 being in the closed circuit. Pump 11 provides circulation

8 -06- 2014 cooled water to the directional valve block 26 provided with the drive system 25 < ^{z by} taking the water from the return 12 of the radiators 14. The computer-controlled drive system directs the water from the pump through the pipe 24 to the burner 19 of to the boiler (cold season heating) or to the Peltier 8 cells (hot weather cooling). The cold part of the Peltier cells is in direct contact with a heat exchanger 9, in which recirculated water from the radiators (or mains water) will enter. In the heat exchanger the process of cooling the water will take place due to the negative temperature of the Peltier cells (values that can reach - 18 ° C). The temperature at the exit of the exchanger 9 (circuit I - radiators) is estimated to be between 2-4 ° C sufficient to ensure the cooling of the radiators during hot weather. The cold water will be sent by the pump through the pipe 10 to a second flap block 15 provided in turn with the actuator system 16. The role of the flaps is to allow or not access the cold water from the pipe 10 or the hot water from from conduct 17.

The production of cold water, according to the invention takes place in an open system by taking water from the network and passing it through the heat exchanger 9 (circuit II - cold water: the exhaust inlet of said AR _{AR ev)} attached to Peltier cells. The current thermal power plants did not provide a water cooling system.

The production of heat in cold weather takes place in the classic, with no changes in the functional principle, but according to the invention, or in addition the directional flaps 15,22 and 26.

The production of domestic hot water takes place using the water from the mains (pipe 13) which is heated by gas in the exchanger 20 of the wall-boiler and is supplied to the consumers through the pipe 18. The flue gases are sucked in by the fan 23, through the pipe 21, and guided by the directional flap block 22, when domestic hot water or heating is provided. Although the fan works by suction have been provided according to the invention, automated directional flaps to avoid accidental entry of the flue gas into the Peltier cell system. The control and adjustment of the extreme temperatures is done by means of chrono-control 31 for heating and cooling.

The Peltier cell cooling system integrated in the thermal plants according to the invention, can be reproduced with the same characteristics and performances whenever necessary, which is an argument in order to respect the criterion of industrial applicability of the invention.

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Bibliographic references [l. | BANCEA O. „Ventilation and air conditioning installations, Lithographed course Timișoara, 241 p., 1996;

[2.) F. IACOBESCU, "The technique of cold and air conditioning. University Publishing House, Craiova. 1998;

[3.] http://www.z-max.jp/peltier at / peltier / experience / index.html [4.] http://forum.softpedia.com/topic/270414-consum-electric-aparate- air conditioning/

Claims (3)

1. The Peltier cell cooling system integrated in the wall-mounted thermal power stations, characterized by the fact that it provides cooling of the heaters during hot weather and has the effect of obtaining an optimum climate being made up of a circulation pump (11) of the wall-mounted thermal power station that carries the water. depending on the circuit offered by the directional valves (26) thanks to the automation system (25) based on the commands received from the computer (7) of the wall boiler to the circuit I of the heat exchanger (9), which is in contact with the cold faces of the cells. Peltier (8); the cold water thus obtained is sent to the radiators (14) where it is admitted by the control of the valves (15) by the drive system (16), which in turn is controlled by the computer (7) and the heat generated by the Peltier cells is evacuated by the sewer (28) and directional valves (22) by the fan of the wall-mounted boiler (23). The Peltier cell cooling system integrated in the wall-mounted thermal power plants according to claim 1, characterized in that it is so designed that it allows cooling of the domestic drinking water through another circuit II of the exchanger (9), at any season. 3. The Peltier cell cooling system integrated in the wall-mounted thermal power plants according to claims 1 and 2 is characterized in that it can control the change of the temperature in the enclosures at any season, by means of the changer (9), of the Peltier cells and on the gas.