DE7621566U1 - AIR CONDITIONING ROOF UNIT - Google Patents

Description

Interliz Establishment in Vaduz, Liechtenstein

; ■ ι

Air conditioning roof unit j

"" I.

\ The invention relates to an air conditioner for the outside.

i ■;

* Position especially on the roof of factory buildings or I.

^: ι

j 5 like large-scale buildings for the removal of exhaust air and ι

'i 1

; Supply of tempered air. i

For outdoor installation on flat roofs of buildings sincj

: Rooftop air conditioning centers known for ventilation and venting ^

; are used * and for heating with hot water from the pump or with

? 1Q a gas furnace or electrically operated heating.

j register and / or contain a chiller for cooling.

• These devices are a central system for building air conditioning, from which

■ closing air distribution ducts the inlet to the ver j

; 15 different jrunkte, for example in different places

a hall and to which the exhaust air from the j

\ different points through further channels back again- '

1 I.

i is directed. The one for central air conditioning]

I designed several building rooms or building locations \

120 roof air conditioning centers therefore require installation j

* special, complex supply air ducts and exhaust air ducts. 1

i ΐ

j These duct installations cannot or only ι

™ ΐ

! badly convert if a change in the supply air j

i partition or exhaust air extraction is required. With existing

: 25 buildings it is often no longer possible or it would be:

j *

3S13

5.5.1976 / Ga

7621566 29.1177

associated with very high costs to disclose the necessary for such ■ [central system channels. Also are

these well-known climate control centers because of their size and the '

1 '

i Often times cannot be used to reduce weight 15 factory roofs, for example on shed roofs, set up i will be able to. The common, well-known roof climates — j central are also designed so that in heating 1

■ · i

operated part of the warm exhaust air back into the fresh air j

can be mixed in, so as to absorb the heat of the circulating air j

10 used exhaust air. The rest of the exhaust air;

is blown out immediately as exhaust air. This has the ■ Disadvantage that not only with partial air circulation but: especially when no air circulation is desired

'■ is or can be made and the exhaust air is $ 100 ^:

-15 is blown out as exhaust air and with $ 100 new fresh air

: work is being carried out, the heat in the exhaust air is unused and the amount required to heat the fresh air

^: Warmth as expensive heating energy via the heating register 'must be supplied again. There are plate heat exchangers

i 20 known per se for exhaust air heat recovery, it handeöi However, these are large-volume and heavy add-on units for central air-conditioning systems that operate within

] Buildings erected and installed in closed trees;

; are. '

I 25 Due to the aforementioned installation difficulties and:

'. special application possibilities of the well-known roof climate

■ large areas such as production '- 3 -

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halls, warehouses, workshops or the like much-?

professionally and widely still air-conditioned in the manner ^;

that at various points on the building roof:

"For example, one on every second or third shed;

3? Abrik- = shed roofs ventilation fans are located and that j

the heating of the hems mile separate circulating air heat f

or wall heaters with fresh air supply. · With I

these facilities can, "was in a more flexible way of I

several desired or purposeful room locations

10 can be ventilated, ventilated and heated. These facilities j

or systems, however, have the disadvantages:: that to poor exhaust air, often in large quantities, without heat | : recovery is led into the open and thus a lot of trains- '

^: led, expensive heating energy is lost that also waste ^;

• 15 heat from machines or from process I

, Processes or unused by lighting and the like;

'Is released into the atmosphere that for heating and

' Ventilation requires separate, double device installations- J

' ι

; are borrowed and that by the roof fans that only; ff ; 20 Discharge exhaust air, uncontrolled air currents and da- j]

caused by drafts from gates and the like

! i e

^{1 can} stand. '

i.

j,

'The invention has set itself the task of an air conditioner

S i

to create with which the shortcomings of the aforementioned I

| 25 ventilation and large area heating by means of separate, double!

¹ device installations as well as the disadvantages of the ones mentioned

ι central systems with rooftop climate control centers are avoided ■ ¹ -4-

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MM »Μ

and which can be installed as a compact and complete single device with \ little installation effort in several pieces on \ J ^ roofs of factory buildings or the like Grcßraumgebäudfenf at arbitrary locations, and a {energy economic aeration and ventilation decentralized j at a plurality of selected locations allows and see characterized!

ί for example also for the renovation of old \ _Ϋ factory buildings with particular advantage is » where .]" a subsequent use of the conventional laughing climate \

central is not possible. f

The air conditioning device according to the invention is primarily characterized by "that in a common housing box of the device there is a heat exchanger which can flow through the exhaust air and the supply air" whose plate-shaped heat exchange walls are made of aluminum foil "and a supply air]

fan and an exhaust fan are arranged »that furthermore ί through the foil package of the heat exchanger together with | Housing walls the housing interior into a through |

the supply air duct leading to the heat exchanger and one through j

the exhaust duct leading to the heat exchanger is divided and | open a controllable bypass flap on the partition walls of the house: point over which the exhaust air inlet side of the heat j exchanger can be connected directly to its exhaust air outlet side ^ is, and have a controllable air circulation flap, via I.

which the exhaust air inlet side of the heat exchanger directly '·. ί can be connected to its supply air outlet side, whereby the |

ι Fresh air inlet and the exhaust air outlet of the housing;

-5- 'I.

7621566 12/29/77

i - ⁵ - i

ΐ ζ

\ box are designed to be lockable, so that the "öhter-j side of the housing box is made of a roof opening; \

; There is a break-sealing attachable base, the I

i common an inlet opening to the exhaust duct and unites

: i

i 5 outlet opening of the air inlet duct of the housing box |

j fei is seated, and that the supply air outlet opening from one of the j

• 3

.: The blown supply air stream is bundled with a jet nozzle. j

f:

f i

* I

I This air conditioner summarizes the ventilation and the j

; Ventilation taking place at the same roof point required I

10 fans as well as an energy-efficient exhaust air heat-i

* V

: aluminum foil heat exchanger enabling recovery j

■ in a single, compact device, which]

i · γ

t decentralized, i.e. in several places, and above all therej

; where the air injection is desired, mounted on roofs {

■ can be 15 and therefore does not require any duct installations · j

I This decentralized ventilation with the inventive i

i according to air conditioner is much more flexible than about the j

ί · ■

central system with the conventional rooftop air conditioning centers, j

: j

I Due to the use of the aluminum polien heat exchanger, ■

20 which is characterized by an extraordinarily large heat exchange j

' Area in a small space and with a very low weight.

i draws, the exhaust air heat can be recovered to a large extent

and therefore in a particularly energy-efficient way

be worked j with 100 $ 100 $ exhaust and new supply _air;

j25 which is necessary for numerous cases. Not only the ;

■ j ¹ heating energy but also that of machines, process

i ί

] technical processes or generated by lighting

: i

i Heat can usefully be recovered from the exhaust air

7621566 12/29/77

will. Furthermore, the air conditioner has the integrated *

Heat recovery process has a low weight, so that if

j - '', If can easily be set up on factory hall roofs, Sh.eddach.ern and the like, and the air conditioner with the built-in aluminum foil heat exchanger is also much more space-saving and thus also more cost-saving than "previous devices only a single roof opening or roof duct is required. By means of the throwing nozzle, the supply air is blown directly from above into the living or working area of the hall or the large room, with the surrounding room air being sucked in by the bundled supply air jet emerging from the throwing nozzle, so that the

* moving jet volume increases and thus a high air '15 change is generated and a thorough removal of

Exhaust air from the lounge or work area back to Exhaust air intake parts of the air conditioner is effected. Advantageously the jet nozzle is provided with an adjustable swirl insert, with the help of which the jet angle and so that the throwing range can also be changed within wide limits. The bypass valve can be used, for example, in the ; Summer, when the supply air does not need to be heated,

j the exhaust air bypassing the aluminum foil heat exchanger S.

• be forwarded so that there is practically no flow

'25 of the heat exchanger by exhaust air and no heating of the Fresh air takes place in the heat exchanger. The air circulation flap can be used for example on days when the company is closed By bypassing the heat exchanger directly as circulating air

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• * egg

be blown back in, in order to save cores for heating the fresh air, for example during heating operation.

• In a particularly advantageous embodiment, between - 5 the supply air outlet opening of the base and the jet nozzle; ^{an air heater and / or:} air cooler connected upstream of the jet nozzle can be arranged. In this way, the air conditioner still has an integrated component in a compact design so that it can be used for heating at the same time, i.e. to heat the fresh air preheated by exhaust air heat recovery to the supply temperature required for heating the room, or to be able to use high outside temperatures and With the bypass flap open, the supply air can also be cooled to a temperature below the outside temperature.

^: An exhaust air filter as a further component of the

'· Complete air conditioning units are arranged, which together mii; the jet through a single opening in the roof is feasible, so that the use of an exhaust air filter no additional installation effort required. Appropriately, when arranging an exhaust air filter the base of the equipment box, the mouth of the jet nozzle a greater distance ττοη the base than the entry de3 5 exhaust air filter.

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In the drawing is an exemplary embodiment of the inventive Air conditioner shown, namely show Pig. 1 is a side view of the air conditioner, partly in

vertical cut;

FIG. 2 shows a vertical section along the line II-II in FIG. 1; Fig. 3 is a horizontal section along the line III-III

in Pig. 1.

The air conditioner "has one for outdoor installation a roof 1 suitable housing box 2, in which two 10 fans 3 and 4 and a heat exchanger 5 are arranged

are whose heat exchange walls are made of aluminum foil and which is divided into two packets. that have a spacing each other (Fig. 2) and are arranged standing on a corner in the housing box (Fig. 1). At her The two packets are located on the outside in a sealing manner

Housing box. Form 2 an * upwards uad downwards ■ Housing partitions 6 a tight seal between the ; two packages and the housing box 2. Between the two

• Packages is a sloping housing partition 7, the

Ϊ20 between the upper partition wall 6 and the housing—

* box 2 forms a tight seal. Further lies

I put a horizontal housing between the two packages

• ί partition 8, extending from the housing box 2 "to the

j in the middle of the free tree between the two packages

\ 25 stretches. Above this horizontal partition wall 8

I "forms a vertical bypass valve 9 for a final \ upper intermediate housing wall 6, below the housing

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Partition 8 forms a vertical circulating air flap 10. j

a termination to the lower intermediate housing wall 6. On \ this manner, in the housing interior through the two heat; Exchanger-leading ducts for supply air and exhaust air separated:

The through the fresh air inlet 11 of the housing box 2 incoming fresh air or supply air occurs on both sides! the inclined housing partition 7 in the two heat < exchanger packages and is driven by the blower 4 through the ■ Heat exchanger 5 sucked diagonally from top to bottom and through an exit opening 12 of the inside of the G-ehäusein * - room-partitioned air duct further conveyed; by an inlet opening 13 of the partitioned off in the housing interior Exhaust air entering the exhaust air duct is passed through the fan 3 when the flaps 9 and 10 are closed the two heat exchanger packs are sucked diagonally from the bottom up and through an exhaust air outlet 14 of the Housing box blown out into the open. The underside of de3 housing box 2 consists of a base 15, which the Supply air outlet opening 12 and the exhaust air inlet opening possesses and with which the housing box on one only to be provided for the installation of the air conditioner Opening of the roof 1 is sealingly attached. At the exhaust air inlet opening 13, the base 15 has a when placing the air conditioner through the opening in the roof. Opening 12 of the base 15 is an extension 17 that can also be pushed through the roof opening. which is deeper than the exhaust air filter inlet

- 10 -

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, -ίο- I

reaching lower end consists of a throwing nozzle 18 which;

bundles the blown supply air flow and with a
; adjustable swirl insert 19 is provided, with its. ! With the help of the jet angle and thus also the throw of the j'5 jet nozzle 18 can be changed. Between the supply air outlet? »Step opening 12 of the base 15 and the jet nozzle 18 is j: an air heater 20 is arranged in which the supply air to the ^!

! 'Example using finned pipes through which warm water flows or]

by means of electrical heating to the desired? Temperature can be heated. Instead of the air heater] 20 or in combination with the air heater 20, ^ an air cooler can be provided to, if necessary, the; to cool the incoming air.

The two flaps 9 and 10 are arranged about vertical axes; pivotable and can be adjusted by means of control devices not shown in detail. For example, if | In the summer, no heat exchange between the exhaust air and the '■ ₍ supply air is to occur in the heat exchanger 5, the bypass valve 9 is opened so that the warm exhaust air does not cause the heat-j

exchanger because of its flow resistance through j

flows, but between the two heat exchanger packages i

through the open bypass flap 9, bypassing the \

Heat exchanger, sucked in directly by the fan 3 and j

is blown out. If during idle times,

[25 "for example no fresh air on Sundays and public holidays? introduced, but should be worked in XJmluftbetrieb *,

When the bypass flap 9 is closed, the return air flap 10 j

- 11 -.

7621566 29.1177

opened so that the exhaust air entering the housing through the exhaust air inlet opening 13 \ between the two I.

Heat exchanger packages through the open air circulation flap 10,; bypassing the heat exchanger, sucked in by the fan 4 and through the inlet air outlet opening 12 again in j

the building space is returned. In recirculation mode j

the fan 3 is switched off. The exhaust air outlet H; of the housing box best from a self-closing ·} · the blind, which while the fan 3 is running through the exhaust air

current is opened and with the blower switched off 3]

closes so that no outside air from the fan 4 [

: the port air outlet 14 and the heat exchanger 5 therethrough;

can be sucked. The fresh air inlet 11 of the; Housing box is not closer to one by means of one
illustrated control device actuatable blind

formed, which in supply air / extract air operation in the open ^:

position is adjusted and closed in recirculation mode I

so that in recirculation mode also by the fresh air <

inlet 11 no outside air is sucked in by the fan 4 j

20 can be. In order to be able to operate at low j

• Outside temperatures and humid exhaust air freeze the \

Heat exchanger in the cross-section through which the exhaust air flows

■ to prevent cuts, for example by means of a '

'Outside thermostat the air circulation flap 10 partially open [

Ϊ25 and at the same time the louvre of the fresh air \

entrance 11 are partially closed, whereby the |

'

t:

; Ratio of the exhaust air flowing through the heat exchanger

j and supply air can be changed so that the temperatures:

7fi? I5RR 7Q17 77

- 12 remain in the heat exchanger above the freezing limit.

Below the lowest point of the flowed through by the exhaust air "part of the two heat exchange units, as shown in Fig 1 '.': - is shown arranged a collecting channel 22, to the 'a lead-out ■ 5 of the body case 2 and a

Siphon 23 containing drain line 24 is connected. With this facility, this can be done on the exhaust side of the Heat exchanger any condensate that may occur straight from the housing box of the air conditioner onto the roof 10 can be discharged without the need for long discharges into a sewer system.

'' The base 15 can be designed in such a way that the air conditioning unit can be placed on shed roofs, flat roofs or other roof shapes that may occur. The air conditioner is ■■ 15 thanks to its use of aluminum foil ^; The low weight of the exchanger can also be placed on factory hall roofs and, due to its ί compact design, only requires the arrangement of one; simple, single roof opening. There can be several climates

■ 20 devices can be arranged on one roof, comfortably <■

'■■ at the points where intensive ventilation and ^!

: Injection of tempered supply air is desired ^ and can j

I, if necessary, with little renovation work;

■ relocated to another roof location. The inventive egg ; 25 air conditioner therefore offered the great advantage of a decentralized and extremely flexible ventilation system, which is particularly suitable

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- 13 -

good for new as well as "existing old building halls" Workshops or similar large rooms are suitable and thus a rooftop climate known "so far from the" is not central closes the gap in demand for a modern, energy-efficient ventilation system.

- 14 -

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Claims (7)

Protection claims Air conditioning unit for outdoor installation, in particular on the roof of factory halls or similar large-scale buildings for removing exhaust air and supplying temperature-controlled supply air, characterized in that a heat exchanger (5) through which the exhaust air and the supply air can flow in a common housing box (2) of the device Plate-shaped heat exchange walls are made of aluminum foil, as well as a supply air fan (4) and an exhaust air fan (3) are arranged that furthermore through the foil package of the heat exchanger together with the housing walls (6, 7, 8) the housing interior into a supply air duct leading through the heat exchanger and a is divided by the exhaust duct leading through the heat exchanger and the partition walls are controllable :? Have bypass flap (9), via which the exhaust air inlet side of the heat exchanger can be connected directly to its exhaust air outlet side, and have a controllable circulating air flap (10) via which the exhaust air inlet side of the heat exchanger can be connected directly to its inlet air outlet side, the fresh air inlet (11) and the Exhaust air outlet (14) of the housing box are designed to be lockable, that furthermore the underside of the housing box consists of a base (15) which can be placed on a roof opening and which jointly has an inlet opening (13) to the exhaust air duct and an outlet opening (12) for the supply air duct of the housing box , and that the supply air outlet opening 7621566 12/29/77 » » A ι - 1 ₅ - from an ifurf bundling the blown supply air flow nozzle (18) ordered. 2. Air conditioner according to claim. 1, characterized in that! at the exhaust air inlet opening (13) of the base (15) a j Exhaust air filter (16) is arranged, which together with the j j Pass the jet nozzle through a single opening in the roof-ί "is bar, and that the mouth of the throw nozzle has a larger j Distance from the base than the inlet of the exhaust air '^ filters. I. 3 · Air conditioner according to claim 1 or 2, characterized in that i that between the supply air outlet opening (12) of the base! and the throwing nozzle (18) a 'upstream of the throwing nozzle' Air heater and / or air cooler (20) is arranged. ■ 4. Air conditioner according to one of claims 1 to 3> marked thereby, that the throwing nozzle has an adjustable swirl insert (19) to change the jet angle of the throwing nozzle: owns. ; 5. Air conditioner according to one of claims 1 to 4, characterized in that that the two fans each with their suction side, on the exhaust air outlet side or the supply air outlet ' side of the heat exchanger are connected and that the; Exhaust air outlet (14) of the housing box from one opposite: the direction of discharge automatically closing the blind is formed and the fresh air inlet (11) of the housing box can be locked by a controllable blind. 7621566 12/29/77 ItC * <C C% - 16 - 6. Air conditioner according to one of claims 1 to 5, characterized in that the exhaust air can flow through Part of the heat exchanger at its deepest point Has condensate collecting channel (22) to which a siphon (23) containing a siphon (23) from the housing box into the open outflow line (24) is connected. 7. Air conditioner according to one of claims 1 to 6, characterized in that the Aluininiumfoli enwärmetauscher consists of two rectangular packages (5) which are standing on a corner in the housing box (2) and are spaced apart on their opposing inner surfaces and that closely adjoin the housing box on their outer surfaces, that the two packages at their front and rear corners as well as through vertical. \ Housing partition walls (6) at their upper and lower corners \ are closed tightly to the housing box and the space between the two packages is formed by a corner extending from the upper to the rear corner of the packages inclined housing partition (7) is closed that further: ner in the space between the two packets a horizontal, from the front corner of the packages to the level of the two vertical partition walls (6) Partition (8) is arranged and between this partition ■ (8) and the vertical housing partitions (6) pivotable vertical shut-off valves (9, 10) are arranged, and that above the horizontal partition (8) a Exhaust air through the two packages sucking fan (3) and - 17- - 7621566 12/29/77 below the partition (8) a supply air through the two Packages sucking fan (4) are arranged. 7621566 29.1177 ■ ι! ^ SP ^ ISiiBM!; AϊΛΐwÄ ■ ^; ί ⁵ ^ sftS ⁱ ; ί ^a ^. * ■ ^ϊi '^