Closed unit of a ventilation device, ventilation device for a building and method for operating a ventilation device for a building

Abstract

The closing unit according to the application of a ventilation device has at least two pivotably arranged flaps (220, 320) for closing the ventilation channel respectively. The two flaps can be moved by means of a common shaft (221, 222) which defines a pivot axis (S). Thereby, the two flaps are forced to be coupled and can be operated simultaneously by means of a unique motor (10). The closing unit makes possible the application of two parallel running heat exchangers without additional bypass channels.

Description

Technical Field

[0001] The present invention relates to a ventilation device, particularly a closed unit of a ventilation device with heat recovery, a ventilation device, and a method for operating a ventilation device for a building. Background Technology

[0002] Buildings are increasingly equipped with ventilation systems that recover heat. For this purpose, outside air introduced into the building and exhaust air drawn out of the building are directed through a common heat exchanger. Heat is thus transferred from the volumetric flow of the air to other objects.

[0003] However, depending on the season and the existing temperature, the heat exchange is not desirable, or a constant amount of heat exchange is not desired. Therefore, a bypass passage is provided to conduct one of the two air volume flows inward or outward without passing through the heat exchanger. The passage through the heat exchanger is here closed by a sealing device. The sealing device is typically a valve or roller shutter.

[0004] DE 10 2013 216 306 A1 uses a first valve in the bypass passage and a second valve in the intake passage. The two valves are operated separately from each other.

[0005] EP 0 044 560 B1 also discloses a ventilation device with a heat exchanger and a bypass, wherein the device has a separately operated valve.

[0006] EP 1 132 690 B1 shows two heat exchangers connected in series, two bypass channels and multiple individually operated valves.

[0007] EP 2 498 014 B1 discloses a heat recovery module with a roller shutter that blocks a bypass and releases the heat exchanger in a rolled-up state and releases the bypass while blocking the heat exchanger in an unfolded state.

[0008] EP 1 962 031 A2 illustrates a heat recovery module with a valve and a slider forming a structural unit. The adjustment movements of the valve and slider are forcibly coupled, achieved by connecting components oriented perpendicularly to each other. The structural unit is directly adjacent to a heat exchanger-bypass device without additional piping or channels.

[0009] Parallel-connected heat exchangers are also known. US 2007 / 0158049 A1 discloses, for example, such a ventilation unit having multiple heat exchangers arranged side-by-side, connected in parallel and correspondingly subjected to parallel flow. A common bypass passage is provided alongside the heat exchangers.

[0010] DE 10 2011 114 885 A1 describes a heat exchanger device having gaseous and liquid fluids. The device has two heat exchangers that are fed in parallel and are spatially staggered. Two bypass channels allow for the supply of air to and purging of air from the heat exchangers. Each bypass channel has its own, independently operating closure.

[0011] The existing equipment still has relatively large space requirements. The use of multiple heat exchangers has the disadvantage of requiring more bypass channels and valves, which increases space requirements and manufacturing costs, especially due to the increased number of motors used to operate the valves. Summary of the Invention

[0012] Therefore, the object of the present invention is to construct ventilation equipment, especially ventilation equipment for building ventilation facilities, in a way that is as cost-effective and space-saving as possible.

[0013] The objective is achieved by a closed unit having the features of claim 1, a ventilation device having the features of claim 9, and a method for operating the ventilation device according to claim 16.

[0014] The ventilation device according to the invention has a closing unit having at least two pivotally disposed valves for closing each ventilation passage. The two valves are movable by means of a common shaft defining a common pivot axis. Thus, the two valves are forcibly coupled and can be operated simultaneously by means of a single motor.

[0015] The sealing unit is suitable for various applications in ventilation systems where two ventilation channels must be simultaneously closed or opened. Here, depending on the position of the valve, one ventilation channel can be opened and the other closed. However, it is preferable to close or open both ventilation channels simultaneously.

[0016] The sealing unit is used, for example, as a double bypass valve with a single motor. However, the sealing unit is preferably used in ventilation equipment that still has bypass functionality without a separate bypass channel. This will be described more precisely hereafter.

[0017] The enclosed unit is particularly suitable for use in ventilation systems with heat feedback, especially by means of heat exchangers. Preferably, there are two or more heat exchangers, which preferably operate in parallel. This is further explained in detail below.

[0018] Preferably, the pivot axis of the closure unit according to the invention extends centrally through the two doors.

[0019] The shaft can be operated manually. However, it is preferable to drive the shaft by means of a motor. Preferably, the motor is positioned above or below the two valves or centrally between the two valves along the longitudinal direction of the shaft. Because only a single motor is required, manufacturing costs can be reduced. This arrangement reduces the need for a position above or below the valves, especially when using a motor constructed as flat as possible. This arrangement also allows for optimal accessibility of the motor in the ventilation system, which makes maintenance significantly easier.

[0020] Preferably, the two valves are arranged at a 90° angle to each other. When the two ventilation channels extend in parallel, the first channel is closed by the first valve when the valves are arranged at a 90° angle, while the second channel is opened by the second valve. If the ventilation channels are arranged at a 90° angle to each other, the channels are closed or opened together when the valves are arranged at a 90° angle. Thus, the 90° arrangement of the valves allows them to be fitted into channels that are arranged differently. The same applies when the valves are arranged in parallel and when there are opposing effects on their sealing performance.

[0021] In a preferred embodiment, each of the two valves forms a closing surface, wherein the two closing surfaces encompass the pivot axis of the shaft. This arrangement facilitates low-cost manufacturing and requires relatively few locations.

[0022] Preferably, the two valves have rectangular cross-sections. Other shapes, especially rounded shapes, are also possible. The shapes of the valves are preferably matched to the shapes of the channels to be closed.

[0023] In a preferred embodiment, the closure unit has a first housing for pivotally receiving a first valve and a second housing for pivotally receiving a second valve. The shaft has an upper section pivotally supported in the first housing and connected at a first end to the first valve and at a second end to a motor. The shaft also has a lower section connected at a first end to the first valve and at a second end to the second valve. The second valve and / or the second end of the lower section of the shaft is pivotally supported in the second housing.

[0024] Thus, the enclosed unit can be configured as a relatively simple and robust module that can be installed as a structural unit in ventilation equipment and can be easily replaced within the scope of maintenance work when needed.

[0025] The enclosure unit can be used in various applications of ventilation equipment. However, preferably, the enclosure unit is used in the ventilation equipment according to the invention described below.

[0026] The ventilation device for buildings according to the present invention has:

[0027] - At least a first heat exchanger and a second heat exchanger, the first and second heat exchangers operating in parallel.

[0028] - External air passage used to transport outside air from the outside to the two heat exchangers.

[0029] - An air intake channel used to draw outside air, now called intake air, from the heat exchanger into the interior space of a building.

[0030] - Exhaust passages used to transport exhaust gas from the building's interior space to the two heat exchangers, and

[0031] - Used to exhaust gas, now called waste gas, from the heat exchanger to the outside.

[0032] In addition, there is a sealing unit that selectively releases all channels, or allows external air to flow through one of the two heat exchangers while simultaneously preventing exhaust from flowing through the one of the two heat exchangers, and simultaneously allows exhaust from flowing through the other of the two heat exchangers while preventing external air from flowing through the other of the two heat exchangers.

[0033] Ventilation equipment can be constructed in an extremely compact and flat manner. It can still achieve large volumetric flow.

[0034] The ventilation equipment is intended for use in the ventilation systems of buildings, particularly in the central ventilation systems of buildings, preferably residential or office buildings.

[0035] Of particular advantage is that the ventilation device according to the invention does not require an additional bypass channel. The two heat exchangers themselves constitute the bypass channel, i.e., when the heat exchangers are only traversed by one of the two air volume flows and thus cannot exchange heat with the other air volume flow.

[0036] The enclosing unit used in the ventilation device according to the invention can consist of two separately operating or jointly operating, particularly forcibly coupled, enclosing bodies. Preferably, the enclosing unit according to the invention described above is used.

[0037] In a preferred embodiment of the ventilation device, the enclosure unit is configured such that it selectively enables or blocks air volume flow only partially, by means that the channel or sub-channel is only partially released or only partially closed.

[0038] Thus, in a preferred embodiment, the aforementioned arrangement can be implemented, which guides the air volume flow through two heat exchangers via different components. For example, two-thirds of the outside air can be guided through the first heat exchanger and one-third through the second heat exchanger, wherein in this case, one-third of the exhaust air is conducted through the first heat exchanger and two-thirds through the second heat exchanger.

[0039] Preferably, the ventilation device according to the invention has two enclosing units that can be operated jointly by a common motor. The enclosing units can be valves as in the device according to the invention. The enclosing units can also be valves with different configurations or other types of enclosing units.

[0040] In a preferred embodiment of the ventilation equipment, the channels are divided into sub-channels. Specifically, the external air channel is divided into a first external air sub-channel and a second external air sub-channel, wherein the first external air sub-channel leads into a first heat exchanger and the second external air sub-channel leads into a second heat exchanger. The intake channel is divided into a first intake sub-channel and a second intake sub-channel, wherein the first intake sub-channel exits from the first heat exchanger and the second intake sub-channel exits from the second heat exchanger. The exhaust channel is divided into a first exhaust sub-channel and a second exhaust sub-channel, wherein the first exhaust sub-channel leads into the first heat exchanger and the second exhaust sub-channel exits from the second heat exchanger. Furthermore, the exhaust channel is divided into a first waste gas sub-channel and a second waste gas sub-channel, wherein the first waste gas sub-channel exits from the first heat exchanger and the second waste gas sub-channel exits from the second heat exchanger.

[0041] Preferably, the sub-channels that are released or closed by means of the closing unit extend at a 90° angle to each other in the region of the closing unit. Preferably, the valves are also arranged at a 90° angle to each other, with one valve in each sub-channel.

[0042] The sub-channels, according to the embodiments, all have the same cross-sectional area and preferably even the same cross-sectional shape. In a preferred embodiment, the first sub-channel has a smaller cross-section than its corresponding second sub-channel, at least in the region of the enclosed device. Preferably, the sub-channels located upstream of the heat exchanger along the flow direction are configured to be larger, such that the sub-channels following downstream of the heat exchanger along the flow direction are smaller. This achieves optimized flow performance. Cross-flow is improved, and a more uniform distribution and higher efficiency are obtained upstream of the heat exchanger. In a preferred embodiment, the widths of the sub-channels are all the same, but their heights differ.

[0043] Preferably, at least one blower is present. Preferably, two blowers are present; one for external air or intake and the other for exhaust or waste gas.

[0044] According to the implementation method, the sealing unit simultaneously seals the first air intake sub-channel and the second air intake sub-channel or releases the first air intake sub-channel and the second air intake sub-channel, or the sealing unit simultaneously seals the first external air sub-channel and the second exhaust gas sub-channel or releases the first external air sub-channel and the second exhaust gas sub-channel.

[0045] In the method according to the invention for operating the ventilation equipment according to the invention,

[0046] At least one first heat exchanger and a second heat exchanger are operated in parallel.

[0047] The external air duct draws outside air to the two heat exchangers.

[0048] The air intake duct draws outside air from the heat exchanger into the building's interior space.

[0049] The exhaust duct directs exhaust gas from the building's interior space to two heat exchangers, and

[0050] The exhaust gas passage leads the exhaust gas out of the heat exchanger.

[0051] The sealing unit selectively releases all channels, or allows external air to flow through one of the two heat exchangers while simultaneously preventing exhaust from flowing through the other heat exchanger.

[0052] This eliminates the need for a separate bypass channel. A simple enclosure, such as one with two operable, preferably forcibly coupled, valves, is sufficient to prevent heat exchange between the two airflows. Attached Figure Description

[0053] Preferred embodiments of the invention are described below with reference to the accompanying drawings, which are for illustrative purposes only and are not intended to be limiting. The drawings show:

[0054] Figure 1 A schematic diagram of a ventilation device according to the present invention is shown;

[0055] Figure 2 A perspective view of the closed unit according to the present invention is shown;

[0056] Figure 3 Showing according to Figure 2 First view of the closed cell;

[0057] Figure 4 Showing through according to Figure 3 The cross-section of the closed unit;

[0058] Figure 5 Showing according to Figure 2 The second view of the closed unit;

[0059] Figure 6 Showing through according to Figure 5 The cross-section of the closed unit;

[0060] Figure 7 Showing according to Figure 2 Exploded view of the first valve device;

[0061] Figure 8 Showing according to Figure 7 A three-dimensional view of the upper part;

[0062] Figure 9 Showing through according to Figure 7 Longitudinal section of the upper part;

[0063] Figure 10 Showing according to Figure 2 Exploded view of the second valve device of the closed unit;

[0064] Figure 11 Showing according to Figure 10 A three-dimensional view of the lower part;

[0065] Figure 12 Showing through according to Figure 10 Longitudinal section of the upper part;

[0066] Figure 13 shows a first perspective view of a portion of the ventilation device according to the present invention; and

[0067] Figure 14 shows a second perspective view based on a portion of Figure 13. Detailed Implementation

[0068] Figure 1 A schematic view of a ventilation device according to the invention is shown, which is used in the ventilation system of a building, particularly in a central ventilation system.

[0069] The ventilation equipment has a closed housing 7, which is constructed as flat as possible. Two heat exchangers 60 and 61 are disposed within the housing 7. The heat exchangers are preferably arranged side-by-side and operate in parallel. The heat exchangers 60 and 61 are preferably plate heat exchangers of a known type or heat exchangers of a known type but constructed differently, and as flat as possible.

[0070] An external air passage 40, an air intake passage 41, an exhaust passage 50, and an exhaust gas passage 51 are connected to the housing 7. The external air passage is used to introduce external air into the two heat exchangers 60 and 61. The air intake passage is used to lead the external air flowing through the heat exchangers 60 and 61 out to the interior space of the building. The exhaust passage is used to introduce exhaust gas from the interior space of the building into the two heat exchangers 60 and 61. The exhaust gas passage is used to lead the exhaust gas flowing through the two heat exchangers 60 and 61 outward.

[0071] The exhaust gas drawn outwards is called waste gas, and the external air conducted into the internal space is called intake air. If both the external air and the exhaust gas flow through two heat exchangers simultaneously, heat transfer occurs in a known manner, used for heat recovery in winter and, if necessary, for cooling in summer. Depending on the season or temperature conditions, heat transfer may be undesirable or only minimally desirable.

[0072] Preferably, at least one, and more preferably multiple, blowers 80 and 81 are present. In this example, there is a first blower 80 in the intake passage 41 and a second blower 81 in the exhaust passage 51. In other embodiments, the first blower 80 is disposed in the exhaust passage 41 and the second blower 81 is disposed in the intake passage 51. The blowers 80 and 81 are preferably operated by means of a regulating device, and preferably operate according to a program.

[0073] To allow flow through the two heat exchangers 60 and 61 in parallel operation, the channels 40, 41, 50, and 51 are divided into corresponding sub-channels. Thus, there are first and second external air sub-channels 400 and 401, first and second air intake sub-channels 410 and 411, first and second exhaust sub-channels 500 and 501, and first and second waste gas sub-channels 510 and 511. The first sub-channels 400, 410, 500, and 510 are connected to the first heat exchanger 60, and the second sub-channels 401, 411, 501, and 511 are connected to the second heat exchanger 61.

[0074] According to the present invention, there exists a sealing unit M that seals two sub-channels together. The sealing unit M has two sealing bodies, wherein one of the sealing bodies seals one of the two sub-channels. Preferably, the two sealing bodies are valves. Preferably, the sealing bodies are motor-driven and operable via a control device.

[0075] In the simplest implementation, two enclosures are spatially separated from each other and the two enclosures are operated simultaneously or sequentially by means of a control device.

[0076] However, in a preferred embodiment, the two enclosures are arranged adjacent to each other. The two sub-channels to be enclosed extend adjacent to each other in the region of the enclosure unit M, also called the enclosure module or module, and further in the region of the enclosure, so that the sub-channels can be closed and reopened simultaneously. The two sub-channels can extend in parallel. However, preferably, the two sub-channels intersect, wherein the sub-channels preferably extend vertically overlapping. Figure 1 This involves a first intake sub-channel 410 and a second exhaust sub-channel 501. If the two sub-channels are open, the external air volume flow and the exhaust volume flow extend through the two heat exchangers 60, 61. Thus, the two heat exchangers 60, 61 are traversed in parallel by the two air volume flows.

[0077] If the two sub-channels 410 and 501 are closed, the external air volume flow can only flow through the second heat exchanger 61 and the exhaust volume flow can only flow through the first heat exchanger 60. Thus, these flows are "bypassed," meaning they are directed through each other without needing their own separate bypass channels. No heat transfer occurs between the two air volume flows.

[0078] Alternatively, the enclosure unit can also be located on other sides of heat exchangers 60 and 61. This is in Figure 1 The rectangle is shown in dashed lines, indicated by the reference numeral M'. In this variant, the second external air sub-channel 401 and the first exhaust gas sub-channel 510 are arranged at a 90° angle to each other and overlap vertically, so that the second external air sub-channel and the first exhaust gas sub-channel can be jointly sealed. Thus, the external air volume flow is guided only through the first heat exchanger 60 in the closed position of the sealing unit M', and the exhaust volume flow is guided only through the second heat exchanger 61. In this case, an additional bypass channel is unnecessary.

[0079] The closing unit M can also close other combinations of the first and second sub-channels, as is readily identifiable to those skilled in the art.

[0080] exist Figures 2 to 12 The diagram shows a sealing unit M according to the invention, which is preferably housed in the ventilation device described according to the invention. However, the sealing unit M can also be housed in other ventilation devices in which two channels that overlap vertically or are arranged side by side are closed together or simultaneously.

[0081] If the air channels are arranged vertically overlapping, they intersect at a 90° angle. If the air channels are arranged side-by-side, they extend in parallel. In both cases, the pivot axis of the enclosure extends at a 90° angle about the longitudinal axis of the air channel. When the air channels are arranged vertically overlapping, the pivot axis extends vertically; when the air channels are arranged side-by-side, the pivot axis extends horizontally.

[0082] As in Figures 2 to 6 As can be clearly identified, the enclosure unit according to the present invention includes a first motor unit 1, a first valve device 2, and a second valve device 3. The enclosure unit is preferably configured as a modular structural unit, which can be installed as a whole into the ventilation equipment. In other embodiments, the components are installed individually or as sub-modules.

[0083] Motor unit 1 has a motor 10, which is configured as flat as possible. The motor is fixedly held on the frames 20, 21 of the first valve device 2. A wire 11 leads to a controller (not shown) of the ventilation equipment. Motor unit 1 also has a turntable 12, which can be pivoted by means of the motor 10. The turntable can also be operated by hand. In this example, a component 13 with a magnet is provided for this purpose.

[0084] The device has multiple shafts 221, 222, and 223 defining a pivot axis S. The upper shaft section 221 is fixedly held in a turntable 12 and can pivot or rotate by means of the turntable. The upper shaft section 221 is connected to a pivotable or rotatable first valve 220 of the first valve assembly 2. In this example, the first valve assembly is molded in one piece onto the first valve 220. The lower shaft section 222 extends downward from the first valve 220 along the pivot axis S. The section 222 is also preferably molded in one piece onto the first valve 220. The section is connected to the second valve 320 of the second valve assembly 3. Preferably, the section is releasably connected to the second valve.

[0085] As in Figures 2 to 6 As can be clearly identified, the pivot axis S extends within the faces of the two valves 220 and 320. Preferably, the pivot axis extends centrally. The two valves 220 and 320 are arranged at 90° relative to each other. The two valves are configured according to the shape of the sub-channels that accommodate them. In this example, the air sub-channel has a rectangular cross-section and the valves 220 and 320 are correspondingly rectangular. The air sub-channels can be of the same size and have the same shape.

[0086] Preferably, the channel is located downstream of the heat exchanger along the flow direction, and the upper channel is configured to be narrower for fluid-related reasons, such that the first valve 220 is narrower and longer than the second valve 320.

[0087] If valves 220 and 320 rotate by means of motor-driven shafts 221 and 222, the valves pivot together, and each valve simultaneously releases or closes its sub-channel. Intermediate positions are also possible, where each sub-channel releases or closes in the same proportion.

[0088] The two valves 220 and 320 are preferably held within frames 20, 21, 30, and 31. Thus, unit M can be positioned as an intermediate component between and connected to the two sections of the air sub-channel. This facilitates the assembly of the ventilation equipment, especially when the ventilation equipment itself is also configured as a structural unit, i.e., as a module.

[0089] exist Figures 7 to 9 The first valve unit 2 is shown in the figure. The valve unit includes three components: a frame portion 20 on the right, a frame portion 21 on the left, and a first valve element 22 pivotally disposed therein.

[0090] The two frame parts 20 and 21 each have an upper surface 200 and 210 and an upwardly extending sidewall 201 and 211, the sidewall having inwardly pointing support protrusions 202 and 212 for accommodating and fixing the motor 10.

[0091] The two frame parts 20 and 21 have semi-circular notches 206 and 216 on the top and bottom, respectively. The notches form circular openings in the assembled state of the first valve unit 2 and are used to accommodate shaft sections 221 and 222 and the second end piece 322.

[0092] The two frame sections 20 and 21 can preferably be joined and secured into a common frame by means of a snap fastener. For this purpose, for example, there are locking bow-shaped members 203 and 213 and corresponding locking hooks 204 and 214. The sides 205 and 215 preferably have a triangular cross-section, wherein the sides taper downwards, i.e. away from the motor 10.

[0093] The first valve element 22 is preferably constructed as a single piece. The valve element has a plate-shaped first valve 220, on which an upper shaft section 221 is molded centered at the upper end and a lower shaft section 222 is molded centered at the lower end. The lower shaft section 222 terminates in a first end piece 223 that is configured as a polygon.

[0094] The first valve 220 and / or the first frames 20, 21 are preferably configured such that the first valve is closed as airtightly as possible. The first valve is rotatably or pivotally held in the frames 20, 21.

[0095] As in Figure 8 and 9As can be clearly seen, the upper shaft segment 221 penetrates the upper region of the frames 20 and 21, and the lower shaft segment 223 penetrates the lower region. Both the upper and lower shaft segments protrude from the frames 20 and 21, so that they can be connected to the motor 10 or the turntable 12 and to the second valve unit 3.

[0096] The second valve unit 3 also has right and left frame portions 30 and 31, each with a second valve element 32 held therebetween. The two frame portions 30 and 31 each have rectangular frames 300 and 310, the walls of which are relatively narrow. The two frames 300 and 310 are preferably connected and secured by a snap-fit ​​connection. Corresponding locking bow-shaped members 303 and 313 and locking hooks 304 and 314 are present. The frames 300 and 310 have semi-circular recesses 306 and 316 centrally located at the top, which, when the frames 30 and 31 are joined together, form a common circular through-hole for accommodating the bearing 321. The frames 300 and 310 also have semi-circular recesses 306 and 316 centrally located at the bottom, which, when the frames 30 and 31 are joined together, form a common circular receiving opening for accommodating the second end piece 322.

[0097] The second valve element 32 is preferably constructed as a single piece. The second valve element has a plate-shaped second valve 320, on which a bearing 321 in the form of an inner polygon is centrally formed at the upper end. The bearing 321 is used for a torsionally connected connection to the first end piece 223 of the lower shaft section 222. A second end piece 322 is centrally molded at the lower end of the second valve 320, which is used to rotatably or pivotally support the second valve 320 in a receiving opening 316 in the lower part of the second frames 30, 31.

[0098] The second valve 320 and / or the second frames 30, 31 are also preferably configured such that the second valve is closed as airtightly as possible. The second valve is rotatably or pivotally held in the second frames 30, 31.

[0099] The components of the enclosed unit M are preferably made of metal or plastic. These components can be manufactured at low cost and are easy to assemble. Furthermore, the two frames simplify installation into the ventilation system.

[0100] Figures 13 and 14 show portions of a ventilation device with an integrated enclosed unit according to the invention. The sub-channels are provided with the same reference numerals as in the examples described above.

[0101] In the examples described herein, the intake passage can also be the exhaust passage and the external air passage can also be the exhaust passage. This should be understood accordingly. The same applies to sub-passages.

[0102] The enclosed unit according to the invention enables the use of two heat exchangers operating in parallel without additional bypass channels, wherein two valves operate together in the enclosed unit.

[0103] List of reference numerals

[0104] 1 motor unit

[0105] 10 motors

[0106] 11 cables

[0107] 12 turntables

[0108] 13 Components with magnets

[0109] 2 First valve device

[0110] 20 Right side frame section

[0111] 200 right side upper surface

[0112] 201 sidewall

[0113] 202 Support Protrusion

[0114] 203 Locking Bow-shaped Part

[0115] 204 Lock Hook

[0116] 205 side view

[0117] 206 notch

[0118] 21. Left side frame section

[0119] 210 left upper surface

[0120] 211 sidewall

[0121] 212 Support Protrusion

[0122] 213 Locking Bow-shaped Part

[0123] 214 Lock Hook

[0124] 215 side view

[0125] 216 notch

[0126] 22 First valve element

[0127] 220 First Embankment

[0128] 221 upper shaft section

[0129] 222 lower shaft section

[0130] 223 First terminal

[0131] 3 Second valve device

[0132] 30 Right side frame section

[0133] Frame on the right side of 300

[0134] 303 Locking Bow-shaped Part

[0135] 304 Lock Hook

[0136] 306 notch

[0137] 31. Left side frame section

[0138] Frame on the left side of 310

[0139] 313 Locking Bow-shaped Part

[0140] 314 Lock Hook

[0141] 316 notch

[0142] 32 Second valve element

[0143] 320 Second Emplacement

[0144] 321 bearing

[0145] 322 Second Terminal

[0146] 40 External air channels

[0147] 400 First External Air Subchannel

[0148] 401 Second External Air Sub-channel

[0149] 41 intake channels

[0150] 410 First Intake Sub-channel

[0151] 411 Second Intake Sub-channel

[0152] 50 exhaust channels

[0153] 500 First Row Subway

[0154] 501 Second Row Sub-channel

[0155] 51 Exhaust Gas Channel

[0156] 510 First Exhaust Gas Sub-channel

[0157] 511 Second Exhaust Gas Sub-channel

[0158] 60 First heat exchanger

[0159] 61 Second heat exchanger

[0160] 7. Shell

[0161] 80 First Blower

[0162] 81 Second Blower

[0163] M-closed unit

[0164] M' closed unit

[0165] S-axis pivot.

Claims

1. A sealing unit for a ventilation device, wherein the sealing unit has at least two pivotally disposed doorways for respectively sealing ventilation passages. in, The two valves are movable by means of a common axis of the closure unit, wherein the common axis defines a pivot axis (S), characterized in that the closure unit has a first frame for pivotally accommodating a first valve and a second frame for pivotally accommodating a second valve, the closure unit has a motor, and the common axis has an upper section pivotally supported in the first frame and connected at a first end to the first valve and at a second end to the motor, and wherein the common axis has a lower section connected at a first end to the first valve and at a second end to the second valve, wherein the second valve and / or the second end of the lower section of the common axis is pivotally supported in the second frame.

2. The enclosure unit according to claim 1, wherein the pivot axis extends centrally through the two doors.

3. The closing unit according to claim 1 or 2, wherein the motor is disposed above or below or centrally disposed between the two valves along the longitudinal direction of the common axis, and wherein the common axis is driven by the motor.

4. The sealing unit according to claim 1 or 2, wherein the two valves are arranged at an angle of 90° or 0° to each other.

5. The sealing unit according to claim 1 or 2, wherein each of the two doors constitutes a sealing surface, and wherein, The two closed surfaces contain the pivot axis of the common axis.

6. The enclosure unit according to claim 1 or 2, wherein the two valves have a rectangular cross-section.

7. The enclosed unit according to claim 1 or 2, wherein the enclosed unit is a structural unit in the form of a closed module (M).

8. The enclosed unit according to claim 1, wherein the ventilation device is a ventilation device with heat recovery.

9. A ventilation device for a building, wherein the ventilation device comprises: - At least a first heat exchanger and a second heat exchanger, the first heat exchanger and the second heat exchanger operating in parallel. - External air passage used to transport outside air from the outside to the two heat exchangers. - An air intake channel for drawing outside air from the heat exchanger into the interior space of the building. - An exhaust passage used to transport exhaust gas from the interior space of the building to the two heat exchangers. - Exhaust gas passage for leading the exhaust gas outward from the two heat exchangers. in, There exists a closing unit (M) according to any one of claims 1 to 8, the closing unit being configured such that the closing unit selectively a) Release all channels or b) Enables the external air to flow through one of the two heat exchangers while simultaneously preventing the exhaust air from flowing through that one of the two heat exchangers. Simultaneously, it enables the exhaust air to pass through the other of the two heat exchangers and prevents the external air from passing through the other of the two heat exchangers. Its features are, - The external air passage is divided into a first external air sub-passage (400) and a second external air sub-passage (401), wherein the first external air sub-passage leads into the first heat exchanger and the second external air sub-passage leads into the second heat exchanger. - The air intake channel is divided into a first air intake sub-channel (410) and a second air intake sub-channel (411), wherein the first air intake sub-channel is led out from the first heat exchanger and the second air intake sub-channel is led out from the second heat exchanger. - The exhaust passage is divided into a first exhaust sub-passage (500) and a second exhaust sub-passage (501), wherein the first exhaust sub-passage leads into the first heat exchanger and the second exhaust sub-passage leads into the second heat exchanger, and - The exhaust gas passage is divided into a first exhaust gas sub-passage (510) and a second exhaust gas sub-passage (511), wherein the first exhaust gas sub-passage is led out from the first heat exchanger and the second exhaust gas sub-passage is led out from the second heat exchanger, and i) The sealing unit is configured such that it simultaneously seals or releases the first intake sub-channel and the second exhaust sub-channel. or ii) The sealing unit simultaneously seals or releases the second external air sub-channel and the first exhaust gas sub-channel.

10. The ventilation device according to claim 9, wherein the sealing unit is configured to partially release or partially close a channel or sub-channel, such that the sealing unit selectively enables or prevents the air volume flow only partially.

11. The ventilation device according to claim 9 or 10, wherein the enclosure unit has two enclosures that can be operated jointly by means of a common motor.

12. The ventilation device according to claim 9 or 10, wherein the sub-channels released or closed by means of the closure unit extend at a 90° angle to each other or at a 0° angle to each other in the region of the closure unit.

13. A method for operating a ventilation system for a building according to claim 9 or 10, - The first heat exchanger and the second heat exchanger operate in parallel. - Wherein the first external air sub-channel leads the external air from the outside to the first heat exchanger, and the second external air sub-channel leads the external air from the outside to the second heat exchanger. - Wherein the first air intake sub-channel draws the outside air from the first heat exchanger into the interior space of the building, and the second air intake sub-channel draws the outside air from the second heat exchanger into the interior space of the building. - Wherein the first exhaust sub-channel directs exhaust from the interior space of the building to the first heat exchanger, and the second exhaust sub-channel directs exhaust from the interior space of the building to the second heat exchanger. - Wherein the first exhaust gas sub-channel leads the exhaust gas outward from the first heat exchanger, wherein the second exhaust gas sub-channel leads the exhaust gas outward from the second heat exchanger, and wherein the enclosed unit selectively... a) Release all channels or b) Enables the external airflow through one of the two heat exchangers while simultaneously preventing the exhaust airflow through that one of the two heat exchangers. Simultaneously, it enables the exhaust air to pass through the other of the two heat exchangers and prevents the external air from passing through the other of the two heat exchangers. And among them i) The sealing unit simultaneously seals or releases the first intake sub-channel and the second exhaust sub-channel. or ii) The sealing unit simultaneously seals or releases the second external air sub-channel and the first exhaust gas sub-channel.

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