MX2011000642A

MX2011000642A - Device and method for drying an air stream.

Info

Publication number: MX2011000642A
Application number: MX2011000642A
Authority: MX
Inventors: Urs A Weidmann; Gustav Hans Weber; Reto Holzner
Original assignee: Mentus Holding Ag
Priority date: 2008-07-18
Filing date: 2009-07-08
Publication date: 2011-02-24
Also published as: US20110133349A1; WO2010006969A1; JP2011528427A; CN102149978A; KR20110068976A; EP2310754A1; AU2009272837A1; BRPI0915962A2; TW201013127A

Abstract

A device for drying an air stream comprises at least one first module (7) comprising at least one Peltier element (13) and at least one second module (8) comprising at least one Peltier element (13). The entirety of the first module (7) forms a first zone (4) for cooling the air stream. The entirety of the second module (8) forms a second zone (5) for drying the air stream. The entirety of the first and the second modules (7, 8) forms an air channel for the air stream. A water discharge channel (9) is disposed below the entirety of the second module (8) and receives water incident during the drying of the air stream in the second zone (5). At least one sensor (30) for measuring a temperature and/or a moisture of the air stream provides at least one output signal. A control unit comprising at least one controller controls the Peltier element (13) based on the at least one output signal of the at least one sensor (30).

Description

DEVICE AND PROCEDURE FOR DRYING ONE AIR STREAM FIELD OF THE INVENTION This invention relates to a device for drying an air stream.

Such a device can be used in a conditioned air, to dry one or air entities that circulate in that apparatus. pto of air conditioning equipment is installed air conditioning.

SUMMARY OF THE INVENTION The development task is proposed to dry a current of air, be as efficient as possible in c, and with an outlet through which it will be dried. The air channel of conformity is divided into at least two or one temperature in the first zone so that the air stream at the end of the zone is cooled to a temperature corresponding to the dew point of the temperature stream which is slightly greater dew point temperature, and in the second area it can be controlled that the air current in the second one in the form of water moisture.

The material and / or the surface structure walls, which limit the channel for air, area and in the second zone preferably differently noises. it is preferably carried out at least Peltier's meter, whose cold side last cools the third zone and its side c the operation heats the fourth zone The control of the air temperature for the air is preferably carried out by Peltier meters, which may be a control unit with when, where the first Peltier control regulator controls the first form that controls the current. of air in the zone, without condensing water and where the designer controls the wave element or the second zone in such a way that the water in the second zone produces water.

The conformity procedure c b) flow the air stream to the second zone, in which the current of a such that the water condenses.

To achieve this, the temperature of the first zone must be found by the temperature of the spray point of the run to which the temperatures are subordinated and the current relative humidity are, m the temperature of the walls of the second temperature under of the dew point current of air. Here it is necessary to observe the dew point of the current duce along the second zone, because the air condenses the humidity in fo The temperature of the dew point in the dew point of the desi nta by the heat that occurs in the BRIEF DESCRIPTION OF THE FIGURES The description will be described in detail below with examples of realization and with the help. The drawings are schematic and do not appear.

Figure 1 shows a scheme that the constitution of an inventive device for drying a current of air in a compliance procedure to dry an air stream; Figure 2 shows a diagram of Molli Figure 3 shows an enlarged cut Mollier ama of Figure 2 and a drying example SO; rspectiva / Figure 8 shows indiv components second module; Figure 9 shows the second module e prospective; Figure 10 shows a single module component in another mode; Y Figure 11 shows the scheme of controlling the device of figure 4.

DETAILED DESCRIPTION OF THE INVENTION BRIEF DESCRIPTION OF THE FIGURES Figure 1 shows a diagram which, on the one hand, illustrates a compliance device for drying an air stream and another flow according to the invention for cooling the feed air stream, the air stream at the end of the First zone 4 is the dew point temperature or a temperature higher than the temperature of the dewpoint point of rotation is that temperature the humid air is saturated with the vapor of temperance that with a further reduction of the temperature of the dew point. it would condense. The temperature of the point of r or both the temperature of the air to the relative ad of the air phi is 100 per cent area 4, the air is cooled without the right. It is possible that, at the end of the first water table, it condense without disturbing its function, for example, when the temperature falls below the temperature of the water point, which can be naturally felt at the desired temperature. If these zones are required, the working method of the equipment is required.

The device is further provided with a sensor, to operate in accordance with the description described in accordance with the invention or at least one sensor serves to determine the relative humidity of the air stream.

The procedure in accordance with the drying of a stream of air suitably stages: a) flow the air stream through zone 4, in which the air current is eroded, its temperature at the end of the zone 4 alc, the dew point temperature corresponds to the dew point or is li moreover, the water does not condense, and the flow of current is made to flow through a fourth zone to the air stream is heated with the heat nta in the third zone 6A.

Here the following should be observed: The temperature of the dew point d of different factors, especially the temperature, the water content and the pressure of the relative ad of the air phi, given in%, desi rción of the highest water content momentarily with respect to the water vapor content at the same temperature.

- The temperature of the dew point in the A is reduced along the zones, since the water condenses, which means that the flow of the air stream with this following equation: which the unit of measurement of the temperatures Celsius radios and the relative humidity of air a in percentage. The temperature of the point of r also be determined by a Mol diagram The Mollier diagram is also suitable for setting the drying process of the current from ai to derive how the temperature should be regulated at or 4.5 and 6A. Figure 2 shows an agrama diagram containing a set of curves, which rep dence the dew point Tpi as a function of the c ua X the temperature T of the air of the di ncially. It falls one of the three arrows is in zones 4, 5, 6A and 6B of the device for air s. When entering the air stream, branch 4, this is input 1, the example current has a temperature T = 30 ° and a iva phi = 50%. When exiting zone 6B, this and a 2 of the device for drying the air stream of air in this example should have reach T = 22 ° and a relative humidity phi = 30%. Area 4.1a air stream only cools if e water. The first arrow is extended ndicularly and points downwards. The stream is cooled in the first zone 4 to a temperature corresponding to its p pi temperature, for example Tpi = 18.5 ° C. In the case of zone 4, the temperature of the dew point can not be condensed continuously throughout the zone 5, as shown by Mollier. In the third zone 6A the flow is also continuously dried, as a consequence of the dew point temperature throughout zone 6. In the example the air stream to third zone 6A must have been heated to the temperature of for example 22 ° C, to which then it has the relative time of the desired air of phi = 30%.

Both zones 6A and 6B are coupled together that the existing heat and that must be removed from leads to zone 6B, to heat it to run at a desired temperature. The temperature of the p at the transition from zone 5 to zone 6A will be regulated or regulated according to these requirements.

The invention in its main application is to optimize the heat transfer and optimization of the material of the walls of the air channel, which cleans zone 5 for optimum heat transfer of condensate and of drops and a fast flow nsada. It is optimal when a monolayer of water forms on the walls of the 5, since it is very thin on the one hand it produces the fast and on the other hand it offers a reduced resistance possible odality of the walls of the second zo with the same material with the which is reacted from top to bottom in the direction of l avedad with a variable fraction with hydrophobic effect, where in its upper zone the foba prevails and in the lower region the hydrophilic fraction When the air stream exits a temperature in the third zone 6A, the air stream in the third zone can then form moisture in the form of water and where the heat in the third zone 6A is conducted to the current fourth zone 6B. This is done advantageously of at least one Peltier element, which on the one hand cools its side cooled the third zone 6A to the desired temperature and p its hot side heats the walls of the quart Figure 4 shows a real example of a device for drying a current d zone 4 is formed by when m or 7 of a first type, in the example are placed 7 one behind the other. The second zone 5 s at least one module 8 of one joined or the second perforated mine 12 has the outer side. The perforated sheets 11 and 12 have a plurality of holes, which in the example are recesses of the first perforated sheet 11 flanged against the holes of the second slot 12. Several frames 10, the first slits 11 and the second perforated sheets 12 do in the frame sequence 10, first stage 11, frame 10, second stage 10, first perforated stage 11, perforated stage base, etc. in such a way that fo for the air stream. Figure 6 illustrates: shows in side view the perforated sheet frame 11 and the second perforated sheet of figure 6 extends in the horizontal direction the individual arts can be recognized through the Peltier element 13, that in the element of Peltier 13 adjacent to the channel and of the Peltier element 13 opposite the cane must be transferred to the environment. This can be done in different ways, for example by cooling or cooling with water. In the example of Peltier 13 s there is placed an element 14, which is cooled with water or with another me in a circuit and the heat taken by the eleme er 13 is ejected in a suitable place of the environment represented in figure 7 are placed side wall of the channel six elements of Pelti cooling elements 14 (of them omitted a The perforated sheets 11 and 12 are impediment that are placed transverse to the current direction of air or channel. The air flow The figure 8 shows the individual components the module 7 is formed. These parts indicate frame 10, a certain number of tips with tips, in this example four different, in fact a first sheet of teeth of seven second saw blade 19, one saw tooth 20, a fourth rail sheet 21, the Peltier element 13 and the element 14. Figure 9 shows the module 8 in v ective. Many racks 10, a first saw blade 18, a second blade of serrated saw blade teeth 20, and fourth saw blades 21 are joined together on the saw blade 10, first saw blade 18, The second sawtooth blade 19, saw blade blade 20, frame 10, 18 to 21 include a surface 22, whose floor 23 adjacent to the channel of the module 8 is provided and is typically in the form of teeth of teeth. of Peltier 13 and the cooling elements equally placed in the module 7 The three saw teeth 18 to 31 differ in the location of the surface 22 of the floor 15 of the module 8.

Sawtooth blades 18 to the flow are placed transverse of the air stream or the channel of the mé r flowing through the channel of the module to the surface 22, where the contained moisture condenses in the form of water on the surface as a result of the force of gravity flows to the collector at canals 23 of the edge 23 there escape through the slots in the bottom and the hole in the water channel conducts biente. For example, the air conduction channel on all three zones 4 to 6A.

The frame 10, the perforated sheets 11, i saw teeth 18, 19, 20 in this example with holes, so that by t the module 7 or 8. can also be screwed in the air channel. The frame 10, the slits 11, 12 and the nsistén sawtooth blades of a very good conductive material of lesser lime capacity are these frames and sheets. The elements 13 are placed on the outer wall of the channel 10 of the frame 10 and perforated sheets 11, 12 and 10 of sawtooth plates 18 to 21, the air body flows through said modules through a channel formed on the side outside of the hot side of the Peltier 13 or 8 elements and there it heats up. The interior of the rcera module area 6A that can not be observed in the figure of the module 8 forms the fourth zone 6B.

Modules 7 and 8 can be formed a. An example of another constructive form is illustrated with the aid of the saw tooth of the saw blade 19. It consists herein of materials, namely a material suitable for the material frame 24 and a material good for the surface 22 with the tips, which enf and to remove moisture. On the left edges of the surface 22, an angle 25 is placed, which cools the cooling sutures 1 (FIG. 4) during the operation. This method is also used to combine the tooth plate on the frame 10 (FIG. 8) forming an entity, in which the frame 24 is constructed from the same. The same constructive form is found in the other sawtooth blades 18, ra 8), so that the module 8 can fnd a series of that type of blades of die 18 to 21 without intermediate frames 10 rucción offers two important advantages, the good thermal conductor is only used there and would be used, and where the temperature of each blade can be regulated individually, the saw blade has its own electron 25. The capacity of heat conduction is 22 It can be broken when placed in figure 10, so that each sheet perforates Peltier elements.

When the modules 7 and 8 form the device, for example, they are shown in FIG. 4, where they individually form the modules 7 and 8 together for air for the air flow to be deposited according to the invention. for the control of the elements 13 of the modules 7 and 8 and at least one of the temperature T and / or the humidity, preferential ad relative phi of the air. Figure 11 shows it for that control. The output signal or the outputs of at least one master 30 are routed to the control 29 and used to control the elements 13 of the module 7 and 8. The control unit 29 in a reset processor 31 for control 30 may also be placed in another area, for example as shown in the figure in zones 4 and 5. The control unit calculates is means T and phi, the corresponding dew time Tpi, for example in accordance with the ecuac the help of a Mollier diagram (figure 2), ntra in the control unit 29 stored by function, group of curves or table. The regulator 21 flows through the elements of the module 7 of the zone, so that when the next perforated sheet located in zone 4 is cooled to a temperature Ti, in Ti dimension it is either the temperature of the pour point or a slightly higher temperature of the dew point Tpl. The temperament is selected in such a way that in the a 5 it is smaller than in the entrance of the zone 5. To condense the humidity in the form of water of the CO, the temperature of the sheets of teeth of s side of the zone 5 must be less than the local dew point.

The humidified air stream when exiting at predetermined temperature T2 and a humidity r terminated phi2. By means of equation (1) or illier, the temperature of the point of the sieve tooth plate 8 which is found as following the salt for air can be calculated.

The regulator 32 regulates the current, that S of the elements of Peltier 13 di module 8 of possibly of the zone 6, of such form atura of the blades of saw teeth of the m The degree of effectiveness of, an element of epende of different factors, in particular temperature between its hot side and the controller 33 and the regulator 34 operate the modules to the Peltier elements, preferably of optimum work, in which it may be that only modules 7, 8 are in operation. of modules 7, 8 are disconnected With the aid of the Mollier diagram shown at 2 the temperature of the point can be determined to be reached so that the air flowing in dis at temperature T and the relative humidity phi, is the moisture. Also with the help of the diag er, for each individual module 5 and possibly zone 6, the same temperature can be determined.

Claims

NOVELTY OF THE INVENTION Having described the invention ede, the content is claimed as property: CLAIMS 1. A device for drying a run comprises an air channel with an inlet s from which air is fed, and with an outlet (2) through the air to the dry air, characterized in that the air in accordance with the invention is at least two zones (4,5), in which the first zone (4) is controlled. that the air stream at the end of (4) is cooled to a dew point temperature of the air stream or air flow, in the first zone (4) and gives zone (5) preferably are constructed differently. 3. The conformance device number 1? 2, characterized in that the air for example is divided into when or zones (4, 5, 6A, 6B), wherein the temperature zone (6a) can be controlled from such the air stream in the third zone in the humidity in the form of water and where the air stream presented in (6A) is conducted to the fourth zone (6B). 4. The conformance device 3, characterized in that the control in the third zone (6A) is at least one ol element (29) with at least two regulators (3 on the first regulator (31) controls the Peltier numbers). (13) controls the first form controlling the air stream in zone (4), without condensing water and in the regulator (32) controls the element (s) (13) controls the second zone (5) of the air stream in the second zone of water for the drainage channel (9). 6. A method of conformance to dry a stream of sealant because it comprises the following eta a) the air stream by means of a (4) in which the air stream is eroded that its temperature at the end of the zone a temperature, which corresponds The air supply through a third zone is cooled to or below the local dew temperature, such that the airflow, and then the airflow through a fourth zone (6B), in the vicinity of the air. air is heated by the heat in the third zone (6A). I 8. The procedure according to cication 7, characterized in that the current. third zone (6A) is cooled at least by Pelti'er and because of the heat that occurs the air stream in the fourth zone (6B).