FIELD OF THE INVENTION
The invention concerns a device for treatment of indoor air.
BACKGROUND OF THE INVENTION
The state of the art knows supply air terminal devices, through which fresh supply air is conducted from a supply air chamber into a side chamber of the device. From the supply air chamber the air is led by way of nozzles into the side chamber, and said flow of fresh supply air induces a circulated air flow to flow through a heat exchanger. The combined airflow J1+J2 is made to flow further out of the device. In the heat exchanger, the circulated airflow J2 is either cooled or heated. The circulated airflow J2 is led from the room to join the fresh supply airflow J1. In the state-of-the-art solutions, the heat exchangers are delivered from the factory according to an order made in advance. Thus, the heat exchanger is manufactured and custom-made on an individual case basis, and said supply air terminal device and the related order for a heat exchanger structure are associated with various treatment steps in the various stages of the order.
So-called passive beams are also known, which are installed in the ceiling of the room space and which comprise nothing else than a heat exchanger, whereby the heated indoor air will circulate close to the ceiling and to the heat exchanger of the passive beam located there, which heat exchanger will cool the circulated air, which when cooled will flow down into the occupied zone of the room.
SUMMARY OF THE INVENTION
This application has realized how to form a heat exchanger structure of modules. Modules are of various lengths, and the client ordering the device may thus choose the combined length he desires, and no separate device-specific custom-making is needed. Much time and work in various stages will thus be saved and the total costs of the device will thus be more advantageous. Each basic module, that is, heat exchanger module, comprises tubes and fins or other such parts to transfer heat from the air through the fins into a heat carrier made to flow inside the tubes, or in an opposite direction. The modular structure also comprises so-called connection modules and end modules as well as supply modules, that is, tube modules.
According to the invention, the heat exchanger modules are of several different lengths: for the end modules and middle modules and also different types of tubes for the connection module and the tube module. Using the connection module for tubes it is possible easily to connect modules of different lengths to one another without needing any welded connection or other such. The scope of the invention also includes an embodiment, wherein instead of the connection module a welded or soldered connection is used between the modules to be connected.
The device for treatment of indoor air according to the invention is characterized by the features presented in the claims.
BRIEF DESCRIPTION OF THE DRAWINGS
In the following, the invention will be described by referring to some advantageous embodiments of the invention, which are shown in the figures of the appended drawings, but there is no intention to restrict the invention to these alone.
FIG. 1A is a cross-sectional view of the device for treatment of indoor air according to the invention.
FIG. 1B shows a second advantageous embodiment of the device for treatment of indoor air according to the invention.
FIG. 1C shows a device for treatment of indoor air; a so-called passive beam.
FIG. 2 shows an axonometric view of a heat exchanger according to the invention for a supply air terminal device formed of modules.
FIG. 3 is a schematic view of a circulation circuit for a heat carrier connected to heat exchangers.
FIG. 4 shows a heat exchanger module according to the invention; the module parts are shown separated from each other before they are connected together.
FIGS. 5A and 5B show a so-called connection module, which is used for connecting in a removable manner the heat exchanger module parts to each other for forming the total heat exchanger structure.
FIG. 6 shows a table of the forming of the modular structure according to the invention in order to achieve different length and structure variations.
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1A shows a view in principle of an embodiment of the supply air terminal device according to the invention, wherein the modular structure according to the invention is used. As is shown in FIG. 1A, the device 100 for treatment of indoor air comprises a supply air chamber 11, into which fresh air from outside is brought through a tube set (not shown). From the supply air chamber 11 the fresh supply air is conducted by way of nozzles 12a1, 12a2 . . . into a mixing chamber S beside the heat exchanger 10, whereby the flow of fresh supply air J1 conducted from nozzles 12a1, 12a2 will induce a circulated airflow J2 from the room H to flow through the heat exchanger 10. Using the heat exchanger 10, the circulated airflow J2 is either cooled or heated.
FIG. 1B shows another embodiment of the supply air terminal device according to the invention. From supply air chamber 11a flow J1 of fresh supply air is conducted upwards through nozzles 12a1, 12a2 . . . , and the circulated airflow J2 from room H is induced to flow induced by said flow J1 through heat exchanger 10a1, 10a2 and further to join the flow of fresh supply air J1. The combined airflow J1+J2 is made to flow upwards and further to the side from the device and back into the room space H. At the heat exchanger 10a1, 10a2 the room air is either cooled or heated as a circulated airflow J2. FIG. 2 shows a heat exchanger 10, which comprises a set of tubes 13 for the heat carrier and fins 14 or other such, through which heat is carried into the room space or in an opposite direction.
FIG. 1C shows a passive beam 100 as the target device of the invention. The passive beam 100 comprises a heat exchanger 10. The passive beam 100 is fitted close to the ceiling or other such of the room space H. Reference number 10 indicates the heat exchanger in FIG. 1C. The air heated for the occupied zone in room space H rises to approach the passive beam 100 and travels above the heat exchanger 10 as shown by arrow J2, and it is further cooled in heat exchanger 10 and it then descends back into the occupied zone. In the summer time, the heat exchanger 10 can be used to cool the circulated airflow J2. In this structure, too, the heat exchanger 10 is one to be assembled of modules, whereby depending on the length of the passive beam 100 the heat exchanger modules can be chosen as desired in order to achieve the desired length of the heat exchanger for the room application in question.
FIG. 2 shows a heat exchanger 10 formed of modules 14a1, 14a2, 14a3, 14a4 in accordance with the invention.
FIG. 3 is a schematic view of a heat carrier circuit. The heat carrier circuit comprises branches A1, A2 of the tube set 13 for the heat carrier, whereby the heat carrier is made to flow circulated by a pump P through heat exchangers 10a1 and 10a2. According to the invention, the heat exchangers 10a1, 10a2 are formed of a modular structure.
FIG. 4 shows a modular structure for a heat exchanger 10. The heat exchanger comprises modules 14a1, 14a2, 14a3, 14a4 and 14a5. The module 14a1 is a tube module, the modules 14a2 and 14a3 are middle modules and the module 14a4 at one end is an end module. Tube connecting pieces, that is, connection modules 14a5, are used between the modules. The tube connecting pieces 14a5 are parts, into whose bushings the ends of tubes to be connected can be placed, whereby a tight connection will be formed without using any soldering or welding between the tubes. Said module 14a5 can also be replaced by welding. Device complexes of the desired length can be obtained by choosing modules 10a1 . . . 10a5 of the desired length and type.
FIGS. 5A and 5B show a schematic and basic view of the use of a connection module 14a5. As is shown in FIG. 5A, the modular structure is shown in connection with a body R. FIG. 5B shows a separate view of a modular structure 14a2, 14a3, 14a5.
The modular structure according to FIG. 5A is assembled to be carried by the body R of the supply air terminal device 100 and it is connected to this with the aid of connecting pieces 14a5 and their mounting to the body R. The connection module 14a5 comprises a tube or bushing section/sections 50. Using a connection part 51 of the connection module 14a5 the modules are supported on body R of the device 100
FIG. 6 shows a table of the modular structure according to the invention. The modules A comprise several different tube types; T1, T2 . . . Tn, modules B and C comprise different lengths L1, L2, L3, L4, L5 . . . Ln. The modules A are so-called tube modules 14a1. The modules B are middle modules 14a2, 14a3 and the modules C are so-called end modules 14a4. Between each module a module D can be used, which is a so-called connection module 14a5, of which there are different types M1, M2 . . . Mn. The modules may comprise several different lengths and/or different tube diameter sizes. The tube modules A are of several different types T1, T2 . . . , whereby, for example, the connection directions of the tubes may vary in the types and the desired type can be chosen for a different purpose of use. Of the modules A, B, C, D a suitable combination may be chosen for the specific application in order to form the desired device.
Patent Application
20080236785
