ES1091280U - Atmospheric condenser (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Atmospheric condenser characterized by using a refrigerating circuit by adsorption to condense the relative humidity of the air in the evaporator and store the produced water in a tank for later use, using adsorbent material according to the refrigerant fluid used and using the solar as a source of system energy. (Machine-translation by Google Translate, not legally binding)

Description

Atmospheric condenser

Technical sector

The proposed utility model is part of the energy sector, specifically of water generators.

State of the art

At present there are several designs of static devices capable of condensing the humidity of the air with the purpose of using the water produced for various purposes such as vegetable irrigation, human consumption, etc.

10 The various types of systems to achieve this end are based on static designs that form the dew, taking advantage of the difference in temperature between day and night, so that the production of water by this method is very low, requiring a large amount of devices to achieve appreciable quantities.

15 These systems are mainly used in desert areas and depend absolutely on the relative humidity of the air where they are installed.

Detailed description of the invention.

The present utility model refers to the use of a solar device capable of producing appreciable amounts of water for use in areas that

specify. For this purpose, an adsorption cooling device capable of producing 5 at 10 kg of water per day depending on the relative humidity of the air.

For such production, the calculations made reveal that a 25 square meter of collection surface is required for at least four hours a day. In this way the device uses daytime solar radiation to accumulate energy

condenses moisture from the air in the form of water drops.

To achieve this, the design is based on an adsorption system already tested by several researchers which is basically composed of a solar collector that heats several tubes which in turn are filled with zeolite G as an adsorber of the refrigeration circuit and are joined in parallel by a collector

The outlet of the collector is hydraulically connected to the condenser and this in turn to the condensate tank which is of the type extinguishes flames in order to separate the condensed fluid from the gas.

The condensate tank is connected by a pipe to a capillary tube which is responsible for evaporating the cooling fluid in the evaporator.

The circuit is filled with methanol as a cooling element for a working temperature of 3 ° C at a pressure of 4mbar, for an absorbed mass of approximately 8%.

For a square meter of surface area, the calculations show that 12kg of zeolite G is required as an adsorber element and 750ml of methanol as a cooling element with a production of 5 to 101 of water / day.

As can be seen in figure 1 in the solar collector tubes in which the zeolite G is housed as an adsorber element (object A) the methanol remains adsorbed until the incident solar radiation heats said tubes. When the temperature reaches the aooc the methanol begins to be desorbed by evaporation beginning to expand in the direction of the air condenser (object C) where it is condensed and by gravity falls to the condensate tank (object O) in liquid form when giving energy to the medium .

Once liquefied, methane 01 of the condensate tank passes through the capillary expansion tube (object E) to the evaporator housing (object F) due to pressure difference. In this case, the evaporation of the liquid methanol is carried out, which causes the cooling of the same and of the air in contact with its surface, which consequently generates the dew point necessary for the condensation of the humidity of the air to occur in the form of water drops, which fall by gravity to the water reservoir where it is stored (object H).

The cycle occurs once a day as a result of heating the adsorber by day and night cooling of it during the night, at which time the circuit pressure drops and the refrigerant is adsorbed again by the zeolite. For this purpose, a return tube (object G) 5 is regulated by temperature by the thermostatic valve which is manually adjustable from 16 ° C to 300C (object 1). When the outside temperature reaches the value at which the valve has been adjusted, it closes preventing the circuit from balancing by equal pressure, being separated by the expansion capillary on one side and by the thermostatic valve by

10 the other in such a way that the differential pressure between the evaporator or low pressure circuit and the rest of the high pressure circuit or circuit is maintained while it is acquiring temperature as it is heated by solar radiation desorbing the refrigerant.

During the night when the ambient temperature drops, the high pressure circuit

The relative temperature is cooled, losing the pressure accumulated during the day, at which time the thermostatic valve, when the ambient temperature drops below its setpoint, opens, allowing the circulation of the evaporated refrigerant fluid towards the tubes of the solar collector to be adsorbed by Zeolite G again. Thus the cycle is repeated every day condensing water in the evaporator

20 gradually filling the water tank for later use.

With the sole intention of explaining the invention graphically and by way of a NON-LIMITATION example, these figures are proposed in an embodiment which is characterized by using the method set forth herein to condense moisture from the

25 air and thus obtain considerable amounts of water.

Figure 1 presents a view of the condensing apparatus in which the different elements that compose it can be seen.

Preferred embodiment

In view of the aforementioned figure, figure 1 shows the set of elements that make up the apparatus starting with the solar collector which is composed of five steel tubes (object A) which are joined by a collector also of steel going the set housed inside an insulated drawer open at the top in the fence of which a glass is embedded (object B), all forming the solar collector.

These steel tubes are the main element of the solar collector as absorbing bodies which are filled with 12kg of zeolite G as an adsorber element, 2.4kg of adsorber per tube.

The collector is mechanically and hydraulically connected to a "te" to which the steel pipe condenser is attached and is finned with aluminum sheet in order to exchange heat with the air medium efficiently (object C) and which is located under the solar collector so that the shadow of the sun will free you from the direct incidence of the sun's rays.

Then the condenser goes to a liquid separating vessel by the method extinguishes flames which keeps the gas separated from the coolant by gravity (object D), this being the condensate tank which during the installation is filled with 700ml of methanol .

A capillary tube (object E) is connected to the liquid outlet of the condensate container, which is responsible for the expansion of the refrigerant fluid in the evaporator housing (object F) due to pressure difference when the device is running.

The closure of the circuit is carried out by an outlet pipe (object G) that joins the evaporator with the "te" of the collector of the solar collector and whose passage is regulated by a manually adjustable thermostatic valve similar to that carried by domestic heating radiators ( object 1), which is responsible for keeping that part of the circuit closed or open automatically in accordance with the

outside temperature

Once the device has been built and supported in the appropriate frame, a vacuum pump is used to empty the system through the loading valve (object J) in order to obtain an internal pressure of four millibars

5 for the proper functioning of the system.

Finally, a fiberglass tank insulated by expanded polyurethane (object H) and buried in order to preserve the stored water from evaporation is responsible for collecting and storing the dew generated by the evaporator.

10 The entire installation is made of steel and is conveniently heated except for the face of the evaporator that must remain in contact with the air.

Claims (1)

1. Atmospheric condenser characterized by using an adsorption refrigeration circuit to condense the relative humidity of the air in the evaporator and store the water produced in a tank for later use, using adsorbent material according to the refrigerant fluid used and using the solar as the system's energy source.