WO1989004936A1

WO1989004936A1 - Regulator device in particular for air-conditioning installations and the use of the regulator device

Info

Publication number: WO1989004936A1
Application number: PCT/FI1988/000180
Authority: WO
Inventors: Markku Varunki
Original assignee: Halton Oy
Priority date: 1987-11-24
Filing date: 1988-11-07
Publication date: 1989-06-01
Also published as: FI83697B; FI875186A0; FI875186A; FI83697C; EP0341284A1

Abstract

The invention concerns a regulator device, and the use of the regulator, in particular for air-conditioning installations. The regulator device is fitted to regulate the set value of the air-conditioning installation, favourably a valve, and said device comprises means for the supply of pressure medium so as to apply the regulating pressure to the pressure medium space. The device comprises a stationary frame part (12) and a mobile frame part (13) which is fitted to move in the direction of the central axis (X) of the device and which said mobile frame part (13) comprises at least two intermediate spaces (G1, G2...) to which the pressure of the medium can be applied so as to displace the inner, mobile frame part (13) to the desired position. The construction in accordance with the invention is composed of interconnectable module units (11a, 11b...). Depending on the requirement of regulating force, the modular construction can be formed by connecting the desired number of module units to each other end to end.

Description

Regulator device in particular for air-conditioning installations and the use of the regulator device

The invention concerns a regulator device in par- ticular for air-conditioning installations and the use of the regulator device.

The force acting upon the face of a piston or equiv¬ alent is equal to the area x the pressure acting upon the face. In practice, especially in the case of air-condi- tioning valves, a major difficulty is to increase the area by enlarging the lateral dimensions. The duct size already imposes restricting extreme values which cannot be exceeded. Thus, as the area or the lateral dimensions cannot be increased, increasing the force is possible only by increasing the pressure. However, pressure is often a quantity which cannot be changed in the desired way, and thereat the only way to increase the force is to increase the area.

The object of the invention is to provide a regulator device in which it is possible to utilize the positive and/or negative pressure present in the system of air- conditioning ducts so as to accomplish the process of regulating in an air-conditioning valve. The object of the invention is in particular a regulator device which is suitable for regulation of the set value of a valve with constant air flow or for choosing of said set value at the desired level. A major drawback in the prior-art solutions of equipment is inadequacy of the regulating force. Frequently, in order to carry out an adjustment of the set value, a separate power unit or even a separate source of energy has been required. Also, solutions in which attempts have been made to utilize the positive and/or negative pressure present in the air-conditioning ducts have encountered difficulties therein that the negative pressures concerned have not been sufficient to provide the desired regulating power. Nor has it been possible, in adjustment of air-conditioning valves or of other air-conditioning devices, to increase the effective area of an actuator, e.g. of a valve, because there have been restricting factors, such as the diameter of the air-conditioning duct, etc. Thereat, another difficulty in increasing the size of the diameter is the increase in the constructional dimensions, which again imposes re¬ quirements, e.g., on material strengths, which must be adequate, e.g., in order that problems of vibration or deformation could be avoided.

Thus, a further object of the invention is a regulator device by means of which it has been possible to avoid the above drawbacks. An object of the invention is a regul¬ ator device which is particularly suitable for regulation of valves with constant air quantity and in particular for regulation of their set values. The objectives of the invention have been achieved by means of a solution of equipment wherein it has been realized to increase the area acted upon by the pressure so that pressure-action faces have been attached to the construction in the direction of movement. According to the invention, the area can be increased, in principle, without limitation, whereby, with a certain finite available control pressure, it is possible to provide a force of a desired magnitude that produces the movement of adjustment. Further, the object of the invention has been achieved by means of a realization in accordance with the inven¬ tion, wherein the device that produces the movement of adjustment is composed of a modular construction, which can be extended in the direction of the longitudinal axis of the construction depending on the power requirement.

The regulator device in accordance with the invention is mainly characterized in that the device comprises a stationary frame part and a mobile frame part which is fitted to move in the_.direction of the central axis of the device and which said mobile frame part comprises at least two intermediate spaces to which the pressure of the medium can be applied so as to displace the mobile frame part to the desired position. The use in accordance with the invention of the regu¬ lator is mainly characterized in that the device is used in the inlet duct of the air entering into the room and in the outlet duct of the air removed out of the room so that, when the set value of the regulator device placed in the inlet air duct is increased, the set value of the regulator device placed in the outlet air duct is in¬ creased accordingly and, when the set value of the regu¬ lator device placed in the inlet air duct is lowered, the set value of the regulator device placed in the outlet air duct is lowered at the same time accordingly.

According to the invention, a regulator device is formed which comprises a modular construction. The modular construction is composed of interconnectable module units which can be connected to each other endwise. Each module unit comprises an outer, stationary frame part and an inner, mobile frame part. In the module units placed one after the other, the stationary frame parts are interconnected end to end, and correspondingly the mobile frame parts are interconnected end to end. Depending on the requirement of regulating power, the module construc¬ tion can be composed by increasing or reducing the number of module units. Each module unit comprises a bottom part provided in the mobile frame part, to which said bottom part the pressure of the medium can be applied. By in¬ creasing the number of intermediate spaces and of module units, the number of the intermediate spaces and of the bottom parts is increased to which the pressure of the medium can be applied. In this way, the force needed in the regulation can also be increased.

In the following, the invention will be described with reference to some preferred embodiments of the invention illustrated in the figures in the accompanying drawings, the invention being, however, not supposed to be confined to said embodiments alone.

Figure 1 is a schematical and axonometric view of the modular construction in accordance with the invention. Figure 2 is a sectional illustration of principle of a device in accordance with the invention. The section is taken along the section line I-I in Fig. 1. By means of this figure, the principle of the operation of the device in accordance with the invention will be described. Figure 3A is an axonometric view of a device in accordance with the invention as divided into the modules.

Figure 3B shows the section II-II in Fig. 3A on an enlarged scale.

Figure 3C shows the section III-III in Fig. 3A on an enlarged scale.

Figure 4 is a longitudinal sectional view of the device of Fig. 3 as assembled.

Figure 5 is an axonometric view of a preferred embodi¬ ment of the regulator device of the invention. Figure 6 is a partial sectional view along the section line III-III in Fig. 5.

Figure 7 is a schematical illustration of the arrange¬ ment of supply of regulating pressure as applied to the solution of equipment shown in Figs. 5 and 6. Fig. 1 is a schematical illustration of the solution of equipment in accordance with the invention. The regu¬ lator device consists of a modular construction 10, which is composed of interconnectable modular units 11a,11b... In the figure, two interconnected units are shown. Said module units 11 are connected to each other so that they can be extended in the direction of the central axis X of the module unit, which said direction is also the direc¬ tion of movement of the mobile frames 13 in the modular construction. The module unit 11 consists of an outer stationary first frame part 12 and of an inner mobile second frame part 13, which transfers the movement and the force. The first frame part 12 is connected preferably to a ventilation duct, or it may include a mouth-piece, e.g. a preferably conical end connection part, by means of which it can be suspended on a duct opening of pre¬ ferably circular section. The second, mobile frame parts 13 are connected to each other by their ends, and so are the first, stationary frame parts 12. The direction of movement of the mobile frame parts 13 is the direction of the central axis X of the module unit and, at the same time, the direction of the central axis X of the whole modular construction. The direction of movement of the mobile frame parts 13 is denoted in Fig. 1 with the arrow L. One end of the mobile frame part 13 may be connected to a part throttling the air flow and placed in the venti¬ lation duct. In this way, by means of the movement of the part 13, the position of the throttle part in the air duct is regulated.

Fig. 2 is a sectional view of the modular construction in accordance with the invention taken along the section line I-I in Fig. 1. As is shown in the figure, the direc¬ tion of movement of the mobile frame part 13 is denoted with the arrow L-_| . The central axis of the unit is de¬ noted with the letter X. The modular construction 10 con¬ sists of interconnected module units 11a,11b..., which can be separated from each other. Each module unit 11a,11b... comprises a first frame part, i.e. a stationary frame part 12, and a second frame part, i.e. a mobile frame part 13. Thus, the module unit 11a comprises a first, stationary frame part 12a and a second, mobile frame part 13a. In a corresponding way, the module unit 11b comprises a first, stationary frame part 12b and a second, mobile frame part 13b. The second, mobile frame parts 13a and 13b are connected to each other detachably, and they are mounted so as to move relative the stationary frame parts 12a and 12b of the module units 11a,11b in the modular construction 10. The stationary frame part 12 comprises an outer mantle face 12a-_| and a bottom part 12a2- In a corresponding way, the stationary frame part 12b com¬ prises a mantle part 12b-_| and a bottom part 12b2• The mantle parts 12a-_| and 12b-_| are connected to each other detachably endwise at_.the point C-j . The mobile frame part 13a, placed inside the station¬ ary frame part 12a of the module unit 11a, comprises a mantle part 13a-_j parallel to the central axis X and a bottom part 13a2 perpendicular to the central axis X. In a corresponding way, the second module unit 11b comprises a mobile frame part 13b placed inside its stationary frame part 12b, which said mobile frame part 13b correspondingly comprises a mantle part 13b-_| and a bottom part 13b2, which is perpendicular to the central axis X.

The mobile frame parts 13a and 13b are connected to each other detachably at the point C. Thus, the frame parts 13a and 13b move as a single package in relation to the stationary frame parts 12a and 12b of the module units 11a and 11b in the modular construction 10. Said movement has been made possible thereby that the mantle parts 13aq and 13b-_j have been shaped as provided with guides T-_j which project from the ends of the mantle faces 13a-_|,13b-_| and which run as parallel to the central axis X of the unit, and which said guides T-_| run through guide openings T2 provided in the bottom constructions 12a2 and 12b2 of the stationary frame parts in the module units 11a and 11b.

Decreasing and increasing intermediate spaces G-| and G2 remains between the wall constructions, i.e. the bottom parts 13a2 and 12a2 as well as 13b2 and 12b2-

Said intermediate spaces G-_] ,G2 are interconnected by means of a connecting hose 15 by attaching the ends of the connecting hose 15 to openings 16 provided in the bottom constructions 12a2,13b2• The spaces G-j and G2 are made air-tight by using a preferably bellows-like, rolling and thereby deformable seal 14. The seal 1 is a resilient so-called rolling seal. It is fitted so that, at one end, it is defined by and attached to the bottom part 12a2 and 12b2, and, at the other end, by and to the mobile frame part 13 of the corresponding module unit, at the connec¬ tion point P-_j and ^~?2 between its mantle part and bottom part. Thus, in accordance with the invention, it has been possible to increase the pressure-action area by forming the partition.walls 13a2,13b2« Depending on the requirement of power, it is possible to increase or reduce the number of interconnectable module units 11 and, thus, partition walls.

The mobile frame part 13b comprises an end piece 13b3, which is connected to the construction so that a spring part 19 engages said end piece. The spring part 19 is fitted between the end piece 12b3 of the stationary frame part 12b and the end piece 13b3 of the mobile frame part 13b in the module unit 11b. A pipe conduit 18 is passed centrally through the spring 19 and connected to the con¬ nection opening 20 in the bottom part 12b2- In this way, the pressure is passed into the spaces G-_j and G2. The spring 19 provides the counter-force for the movement L-_j , which is necessary in the case of continuous adjustment of the set value.

The distance of movement of the jointly moving frame parts 13a and 13b can be limited in both directions of movement by using limiters 21 and 22. The limiter 21 com- prises a limiter rod 21a, which is attached to the mobile frame part 13b, preferably to its end piece 13b3« In a corresponding way, said mobile frame part 13b3 is provided with a second limiter 22, by means of which it is possible to regulate the distance of movement in the opposite direction.

The limiter 21 comprises a rod 21a and thereon a scale 21a¹. The rod 21a is attached to the mobile part 13b and to its bottom part 13b3- The rod 21a comprises a limiter piece 21b, whose location can be altered. The limiter piece 21b acts as a stop and limits the movement of the mobile frame part 13 against the bottom part 12fc>3 of the stationary frame part 12b. In a corresponding way, the movement in the opposite direction can be limited by means of the limiter 22. In a corresponding way, it comprises a rod 22a, which is, in the way shown in Fig. 2, attached to the mobile frame part 13b and to its bottom part 13b3. The stop part 22bf is placed at the opposite side of the wall construction 12b3 or of the bracket or equivalent as compared with the limiter piece 21b. The position of the stop part 22b-_] can be adjusted by means of the rod 22b2 connected to the stop part 22b-_| by shifting the stop part 22b-| by displacing it by means of the displacing rod 22b2- Further, the displacing rod 22b and the stop part 22b-_| provided on it can be locked in a fixed position relative the rod 22a provided with an air-flow scale 22a¹.

Fig. 3A is an axonometric exploded view of the modular construction 10 in accordance with the invention. The figure illustrates two module units 11a and 11b that can be joined together. As is shown in the figure, the first module unit 11a comprises a mobile frame part 13a. The mobile frame part 13a comprises a mantle part 13a-_j and a related bottom part 13a2» The mantle part 13a-j is pro- vided with a number of guide parts T-_j , which project from the edge of the mantle part 13a-_|. Advantageously, the number of the guide parts T^ is eight. As is shown in Fig. 3, a duct opening 16 has been formed into the bottom part 13a2 so as to transfer the pressurized medium- into the following module unit to be connected. If a module unit is no longer attached as an extension to the con¬ struction concerned, the bottom construction 13a2 may be formed solid without any opening 16.

As is shown in Fig. 3A, the first module unit 11a further comprises a stationary frame part 12a, which is provided with a mantle part 12a-_j and with a bottom part 12a2 Placed perpendicularly to said mantle part. The bottom part 12a2 comprises through openings 2 for the guides T-_j of the mobile frame part 13a. The number of the openings T2 is equal to the number of the guides T-_j on the mobile frame part 13a.

The guides T-_| of the mobile frame part 13a of the module unit 11a are coupled with the mobile frame part 13b of the other module unit 11b. The ends of the guide parts T-| are provided with grasping parts T-|a, which grasp the grasping points T-_|b provided on the mobile frame part 13b of the other module part 11b, which said grasping points T-jb consist of openings provided in the mantle part 13b-_j of the mobile frame part 13b, in which said openings the wedge-shaped grasping parts T-_ja of the guide parts T-_j become positioned.

The stationary frame parts 12a and 12b further com¬ prise a separate attachable bottom part 17, by means of which one end 14a-_] of the seal 14 is attached to the frame part 12a,12b.

The part 17 comprises a bottom part 17a substantially perpendicular to the central axis X and an edge portion 17c extending from the edges of the bottom part as sub¬ stantially parallel to the central axis X. Said part further comprises grasping parts 17b, by means of which the bottom part 17 can be connected to the bottom part 12a2,12b2 of the stationary frame part 12a,12b of the module unit 11a and 11b, to the counter-openings E pro¬ vided in said bottom part. The counter-openings E com¬ prise grasping projections on the inner faces of the counter-openings, the openings 17b' of the grasping parts 17b being positioned behind said grasping projections. The bottom part 17 comprises an opening 16, into which one end of a hose 15 or equivalent can be placed. The other end 14a2 of the seal 14 is attached by means of a fasten¬ ing ring 23 (as is shown in Fig. 3A) to the connection point P-_] between the mantle part 13a-_] and the bottom part 13a2 of the mobile frame part 13a. The seal 14 is at¬ tached in a corresponding way in the case of the second module unit 11b.

The ring 23 comprises grasping projections 23a or equivalent, which are positioned in the counter-recesses 23b in the mantle part 13a-_| of the part 13a. When the ring 23 is in its position, the seal 14 is placed as fixed by its edges 14a2 on the part 13a and 13b.

One end of the hose 15 is passed into the opening 16 provided in the bottom part 13b2 of the mobile frame part 13b in the module unit.

Fig. 3B shows a section II-II from Fig. 3A. The mantle part 13a-_] comprises an opening 23b for the grasping projections 23a of the ring 23. In a corresponding way, said mantle part comprises an opening T-u-, for the grasping parts T-_]a of the guide parts T-_] of the module part to be connected. Inside said frame construction, there is an edge portion f, to which the end 14a2 of the seal 14 can be placed, and hereupon the ring 23 is positioned so as to lock the seal onto the part 13a.

Fig. 3C is a further sectional view III-III from Fig. 3A. In the way shown in the figure, the part 17 comprises a bottom part 17a and a connected edge portion 17c. The bottom part 17a is further provided with grasping parts 17b, which comprise counter-recesses 17b", into which the equivalent grasping parts (not shown) provided in the stationary frame part 12a and in its counter-recesses E become positioned when the bottom 17 is attached to the bottom part 12a2 of the frame part 12a.

The stationary frame parts 12a and 12b can be joined together detachably so that the projection parts T3 pro¬ jecting from the mantle part 12a2 are positioned in the counter-recesses G in the stationary frame part 12b of the second unit 11b. The projection parts T3 comprise open¬ ings 13a, which become positioned on locking projections, not shown, provided in the counter-recesses.

Fig. 4 is a more detailed sectional view of the modu¬ lar construction- shown in Fig. 3A, with the construction assembled. The figure illustrates the attaching of the seal 14 by means of a separate bottom part 17 to the bot¬ tom construction of the stationary frame part 12a,12b. In a corresponding way, the other ends of the guides T-_j of the mobile frame part 13a in the module unit 11a are connected to the mobile frame part 13b of the second mod¬ ule unit 11b, whereby said mobile frame parts 13a and 13b can be displaced by means of pressure as a single package, while the entire distance of movement in the construction of the invention is favourably about 20 to 60 mm. Fig. 5 shows a preferred embodiment of the device in accordance with the invention. Fig. 5 shows the device as an axonometric view.

Fig. 6 is a partial sectional view of the device shown in Fig. 5, taken along the section line III-III in Fig. 5. From Fig. 6 it is seen that, in the modular construc¬ tion in accordance with the invention, a regulator part 30 is attached to the end of the interconnected mobile module units, said regulator part being fitted to adjust the flow quantity of air or gases. The regulator part 30 comprises a deformable throttle part 31 , preferably made of rubber, which is fitted to alter the projection of its outer circumference as the difference in pressure across the valve increases, so that the whole projection is fitted to increase over its entire circumference and pre¬ ferably uniformly in all cross-sections perpendicular to the X-axis. The throttle part 31 comprises a wave-shaped construction wherein the ridges and bottoms of the waves run as parallel to the central axis X.

With an increase in the difference in pressure, the throttle part 31 is fitted to displace itself closer to the conical wall 32a of the conical piece 32 in the valve construction. Moreover, as the difference in pressure across the valve increases, the end 31a of the throttle part 31 also moves, as is shown in the figure, to the right against the spring force of the spring 33. In the device of the invention, the regulating of the set value is carried out by means of the modular construction 11a, 11b,11c. In the figure, three module units have been joined together end to end. When a positive or negative pressure, compared with the outer air, is introduced into the spaces G-_|,G2,G3 in the modular construction (interior spaces in the units), the mobile frame part 13 in the mod- ular construction is displaced in either one direction, and under these circumstances, as is shown in the figure, the throttle part 31 is displaced either to the right or to the left. In this way the throttle part 31 is dis¬ placed to the desired position relative the conical face 32a so as to fix a set value for the flow quantity. As is shown in Fig. 5, the stationary frame part 12 of the set-value regulator 10 is fixedly connected to the cone part 32, and said connecting has been accomplished by means of separate connecting ribs 34. When the throttle part 31 is displaced to the left in the way shown in Fig. 6, the flow gap between the throttle part 31 and the face 32a is reduced and, thus, the set value of the flow is set at a lower level, and correspond- ingly, when the throttle part 31 shown in Fig. 6 is dis¬ placed to the right in the way shown in the figure, the flow gap between the throttle part 31 and the face 32a of the conical part 32 is increased and, thus, a higher set value is fixed for the flow. The function of the regula¬ tor device 30 itself is to regulate the flow in accord¬ ance with the set value concerned so that said set value for the flow (arrow L2) is maintained irrespective of any differences in pressure across the valve. Fig. 7 illustrates the introduction of the regulating pressure into the valves of constant air quantity shown in Figs. 5 and 6, comprising a modular construction. In the figure, an inlet duct 35 and an outlet duct 36 for air flow are fitted in a room. From the duct portion 35a with positive pressure, a duct 35b is passed through the con¬ nector device 37 to the inlet duct 39 for the regulating pressure in the modular construction 10. In a corres¬ ponding way, from the duct 36a with negative pressure a connecting duct 36b is passed through the connector device 37 to the connecting duct 39. By controlling by means of the control knob 38, it is possible to pass either posi¬ tive or negative pressure along the duct 39 into the spaces G-χ , -^~\~ , etc. in the .modular construction. When pos¬ itive pressure is passed, the mobile frame construction 13 is displaced to the left in the construction shown in Figs. 5 and 6. In this way the throttle part 31 is dis¬ placed closer to the conical wall 32a and, thus, the set value is reduced, and correspondingly, when negative pres¬ sure is passed into the spaces G-_|,G2, etc., the throttle part 31 is displaced to the right in the way shown in Fig. 6, and, thus, the throttle part is displaced further apart from the conical piece 32 and from its wall construction 32a and, thus, the set value of the flow quantity is increased. In accordance with the invention, e.g., the regulator device shown in Fig. 5 can be used so that one regulator device is fitted in the inlet duct for the fresh air entering into the room and, correspondingly, one regu¬ lator device is fitted in the outlet duct for the air to be removed out of the room. The devices are installed in the ducts in different directions, so that the direction of the air flow (arrow L2) is always that shown, e.g., in Fig. 5. According to the invention, now the set values both of the regulator device placed in the outlet air duct and of the regulator device placed in the inlet air duct can be adjusted so that the adjustment takes place at the same time both for the inlet air and for the outlet air. Moreover, the adjustment takes place so that, when the set value for inlet air, i.e. of the regulator device placed in the inlet air duct, is increased, the set value of the regulator device placed in the outlet air duct, i.e. the set value for the outlet air, is increased correspondingly by the equivalent amount. In a corresponding way, when the set value for inlet air is reduced, the set value for outlet air is also reduced by the equivalent amount.

The connector 37 may also be such that by its means it is possible to regulate the pressure passed into the duct 39 continuously, and, thus, it is also possible to regulate the distance continuously over which the throttle part 31 of the regulator device 30 is displaced. Thus, it is possible to adjust the set value of flow continuously. The movements of the mobile parts 13 can be fitted to take place against the spring force of a spring in one direction or in both directions.

Claims

WHAT IS CLAIMED IS:

1. Regulator device in particular for air-condition¬ ing installations, which said regulator device is fitted to regulate the set value of the air-conditioning instal¬ lation, favourably a valve, and which said device com¬ prises means for the supply of pressure medium so as to apply the regulating pressure to the pressure-medium space, c h a r a c t e r i z e d in that the device com- prises a stationary frame part (12) and a mobile frame part (13) which is fitted to move in the direction of the central axis (X) of the device and which said mobile frame part (13) comprises at least two intermediate spaces (G-_] , G2. • . ) to which the pressure of the medium can be applied so as to displace the inner, mobile frame part (13) to the desired position.

2. Regulator device as claimed in claim 1 , c h a r a c t e r i z e d in that the device is a modular construction (10), which consists of interconnectable module units (11a,11b...) which can be joined together b their ends and that in the construction each module unit (11) comprises an outer stationary frame part (12) and an inner mobile frame part (13), whereat,, in the subsequent module units (11a,11b) the stationary frame parts (12a, 12b) are connected to each other end to end and, corres¬ pondingly, the mobile frame parts (13a,13b) are connected to each other end to end, and in which said construction, depending on the requirement of regulating force, the modular construction can be formed by increasing or re- ducing the number of the module units.

3. Regulator device as claimed in claim 1 or 2, c h a r a c t e r i z e d in that, in the modular con¬ struction, the stationary frame part (12a-_|) comprises an opening (16)_ placed in the bottom part (12a2) and, in a corresponding way, the mobile frame part (13b) comprises an opening (16) placed in its bottom part (13b2,17), said openings being interconnected by means of a connecting hose (15), through which the pressure of the medium can be applied to the intermediate space (G-] ) placed between the mobile wall construction (13a2) and the stationary wall construction (12a2), which said space (G-_] ) can be enlarged and reduced.

4. Regulator device as claimed in any of the pre¬ ceding claims, c h a r a c t e r i z e d in that the module unit (11a,11b) comprises a seal (14) fitted in each intermediate space (G-_],G2), which said seal (14) is, at one end, defined by and attached to the wall (12a2,12b2) and, at the other end, by and to the mobile frame part

(13a,13b) of the corresponding module unit, favourably at the connection point (P-_],P2) between its mantle face and wall construction, whereby the intermediate spaces (G-_|,G2) that can be reduced and enlarged are pressure-tight out- wards and whereat, when the pressure of the medium is introduced into said intermediate spaces (G-_],G2-..), the pressure of the medium is applied to the mobile bottom part (13a2,13b2- • • ) .

5. Regulator device as claimed in any of the pre- ceding claims, c h a r a c t e r i z e d in that the mobile frame parts (13a,13b...) comprise guide parts (T-_] ) connected to the construction, which said guide parts are fitted to pass through openings (T2) or equivalent pro¬ vided in the stationary frame parts (12a,12b...) for said guide parts and which said guide parts (T-_j ) of one mobile frame part (13a) join the other mobile frame part (13b).

6. Regulator device as claimed in any of the pre¬ ceding claims, c h a r a c t e r i z e d in that the construction comprises a spring (19), which is fitted between the mobile frame part (13) and the stationary frame part (12) and, in a modular construction, advantage¬ ously between the end wall (13b3) or equivalent of any one of the extreme module units and the end wall (12b3) or equivalent of a stationary construction part, whereby the adjustment of the set value of air flow can be carried out continuously against the spring force of the spring (19).

7. Regulator device as claimed in any of the pre¬ ceding claims, c h a r a c t e r i z e d in that one mobile frame part (12) of a module unit comprises a regu¬ lator part (30) connected to it, which said regulator part (30) comprises a deformable throttle part (31), which is fitted to change the projection of the outer circumference so that the whole projection is fitted so that its circum¬ ference increases uniformly in all projections perpendic¬ ular to the longitudinal axis (X) of the device when the difference in pressure across the valve increases, and that the position of the throttle part (31 ) on the central axis (X) is regulated by displacing the mobile frame part (13) by means of the regulating pressure introduced into the intermediate spaces (G-_],G2-..), and that the station¬ ary frame parts (12a,12b,12c) of the module units (11a, 11b,11c) are connected to the valve cone (32) or equiva- lent of the valve.

8. The use of a regulator device as claimed in any of the preceding claims 1 to 7, c h a r a c t e r ¬ i z e d in that the device is used in the inlet duct of the air entering into the room and in the outlet duct of the air removed out of the room so that, when the set value of the regulator device placed in the inlet air duct is increased, the set value of the regulator device placed in the outlet air duct is increased accordingly and,- when the set value of the regulator device placed in the inlet air duct is lowered, the set value of the regulator device placed in the outlet air duct is lowered at the same time accordingl .