DE2021486A1 - Device for generating pulsating warm or hot air - Google Patents

Description

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tKdte 1 / Postfaäi 250265 30.APRJS7Ü

Applicant Societe dite: SEMIA SA Avenue J, F. Kennedy '
Merignac (Gironde) ^ France

Device for generating pulsating open air or hot air

The invention relates to a device for generating of pulsating warm or hot air for heating and / or ventilation of buildings, especially industry · - or Agricultural buildings, preferably from an elevated location of the building, with a heat exchanger and an in the variable length housing.

In the current state of the art it is known for

various installations for heating or drying one part Devices or generators for generating pulsating «To use poor or * hot air for your part be operated with a suitable fuel, e.g.

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Heating gas, heating oil, domestic fuels, kerosene, petroleum, or electrical energy. On the other hand, it is known to heat exchangers to be used. -

The fuels are intended for the operation of the burner,

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while the electrical energy for the control or the drive of the fuel requirement pump and for the drive of the Pulsation fan and finally for the basic operation of the entire system with or without automation serves.

These well-known devices that work with direct combustion, with or without a heat exchanger, they can be installed movably or permanently.

In both of the aforementioned known devices, the length of each device, including the heat exchanger, is in the The order of magnitude is about one or two meters, so that it is not just a device that is too small and not spatially effective but the volume of the pulsating air is too small for normal requirements. The air flow of the pulsating air can happen in such a way that the air jet itself spreads from the exit from the device or it can ^ starting from the point of exit from the device, are introduced into a distribution line system

On the other hand, different types of heat exchangers are known, for example heat exchangers known as radiators or consisting of double-walled tubes or heat exchangers in which the heat is transferred through plates, whereby the plates can be arranged one above the other or next to one another work, others consist of numerous Rohrbtindeln and finally heat exchangers are proposed

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been that with independent circuits of the flowing media work.

The current technical development is now in principle towards providing the devices for generating warm or hot air, hereinafter also referred to as generators for short, with heat exchangers and building the entire device extremely short. As far as a distribution network is connected, this is generally additionally with independent &

working heat exchangers. These installations are technologically very complex, so they are very expensive and are also in terms of heating power not very economical. . .

The invention is based on the object of creating a device in which the aforementioned disadvantages are avoided, which is therefore of simple construction, economical heating and / or ventilation of a room or

of a building and which with simple means ~

to the proportions and the local conditions of the room or building is adaptable.

Starting from the device explained at the beginning, the The problem posed according to the invention is achieved in that a generator with a fuel-operated generator at one end Burner is provided, and that concentric to each other inner and outer rings are so designed and arranged to the burner * that a space for heat exchange between the rings is formed.

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An advantageous embodiment of the invention results in that the concentrically arranged inner and outer rings have a cylindrical shape and the burner such that the inner ring surrounds the combustion chamber and the annular space between the inner and outer ring acts as a heat exchanger is trained.

Furthermore, it is expedient that the heat exchange chamber can be arranged as desired by arranging cylindrical rings one behind the other can be extended in adaptation to the room to be air-conditioned.

A further embodiment of the invention can be created in that the last inner ring is frustoconical, that the inner ring in the area of the small diameter is connected to a pipe for discharging the smoke or the burned exhaust gases to the outside and that the last outer ring through the front an annular plate is closed through which the smoke pipe is passed _P

Another embodiment of the invention is characterized in that that the last outer ring is closed at the front by a closed plate, that the smoke tube passed through a point in the cylinder wall of the outer rings is, and that the number of inner rings is reduced in accordance with the arrangement of the smoke pipe.

It is also proposed according to the invention that the first Outer ring has an opening at the end for the entry of fresh air that is behind this fresh air opening in the

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middle area a burner connects, which of a Part of the fresh air supplied is supplied to the burner is provided with a Venturi tube or nozzle that Between the opening for the inlet of the fresh air and the burner, an induced draft fan is arranged, which one Part of the fresh air supplied as a pulsating air flow leads into the annular space between the inner and outer ring.

A good adaptation to the spatial conditions can thereby be achieved that the outer rings manifold openings for the pulsating air flow.

In this context, it is also advantageous that the Outlet openings for the pulsating hot air flow adjustable deflector plates or control flaps are connected.

A constructive improvement is created in that the fan is driven by an electric motor, which is also a fuel pump to supply the burner drives.

In practice it has proven advantageous that the Burner equipped with a control valve and an electrode is.

Finally, the device can also be designed in such a way that the outer and inner rings are each provided with a mounting bead near their one end and are designed in such a way that the combustion space and the space of the heat exchanger

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can be extended by inserting rings into one another at the ends are.

For a better understanding of the invention, the following should also be stated.

The inventive apparatus is advantageously provided with a direct operating combustion chamber which can be extended as desired, and indeed dxirch identical components which interlock or can be plugged together hinte purely other "The combustion gases exit at the end of the combustion chamber thus formed or on the way through the combustion chamber at a suitable point on the circumference through a smoke pipe or a flue gas chimney to the outside Heat exchanger is formed Ψ . This space of the heat exchanger has the same length as the combustion chamber when the exit of the burnt exhaust gases takes place at the end of the device.

This inventive device enables a simple technical and thus economic structure and also has the advantage that a high degree of efficiency in terms of heat exchange is achieved "

One of the features of the invention is to have a generator, ie an element for generating, at one end of the device

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the heat to proceed, which with "any" fuel can be operated, for example town gas, natural gas, oil, Kerosene, petroleum etc., whereby the combustion takes place by means of a burner, which as such is in a known / Wise can be designed.

Another essential feature of the invention is zti therein see, any number of similar cylindrical rings on the combustion chamber of the generator described above to be connected, depending on the length of the to be heated or ventilated Gebätidesf the end ring of the The combustion chamber is expediently frustoconical formed, where the small * diameter is the diameter of the Chimney or the exhaust pipe for the discharge of the burned Exhaust is adapted. -

Furthermore, it is proposed in the context of the invention, concentrically or to arrange another chamber coaxially around the combustion chamber, which, as already explained, together with the outer wall of the combustion chamber forms the heat exchanger, this outer chamber housing also from Similar cylindrical rings can be assembled, the number of which in turn depends on the length of the combustion chamber is and extends at least to the position at which the Smoke and the burned exhaust gases are extracted.

Another feature of the invention is given in that in front of the generator burner, i.e. in front of the element for generating the heat, a fan or an axial or radial

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fan is arranged. This fan or blower draws in the air from the environment through an appropriately sized opening and leads part of the air to the burner, namely with the interposition of a known device with a ring or pipe socket and a Venturi tube while another part of the air from that The fan is inserted into the annular space between the two rings

According to a further feature of the invention, the annular space between the two explained cylindrical " Housing rings at the end, approximately in the area of the chimney for the exit of the burnt exhaust gases, by means of an annular Plate closed, the plate allowing the smoke pipe or exhaust chimney to pass through. In the outer rings or outlet openings are incorporated into the outer housing of the annular heat exchange space formed in this way. These Openings are like this with regard to their number and their location chosen that the hot pulsating warm air flows exiting them are directed in all desired directions can. The volume of the exiting pulsating partial air flows can depend on the temperature of the warm or Hot air can be regulated and adjusted in that at the mouth of each opening a control flap or a controllable one Deflector is provided.

In other words, it can be seen that the proposed according to the invention Device a generator for generating pulsating Using hot air with a known burner,

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the combustion chamber and the concentric therewith arranged heat exchange chamber in a simple manner by cylindrical Rings are extendable. The outer rings also serve as a distributor and are used for this purpose Outlet openings are provided, the cross section of which is adjustable, and the outlet openings are also provided each arranged and precisely set up so that they are suitable for the particular application and local conditions allow optimal heating and / or ventilation.

Neben'der simple and economical constructive ^ design of the entire device can be "the high thermal efficiency by declaring that the combustion chamber and are designed to mutually space surrounding it annular heat exchange that no thermal diffusion. Or heat loss may occur which is not controlled, ie the entire heat is used to the maximum for the desired heating of the room or building in question.

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In the drawing, an embodiment of the invention is shown in the scheme, namely show

1 shows a longitudinal section through the component representing the generator,

Fig. 2 is a side view of the system seen over the entire length, the system the generator and several has outer and inner rings, vrobei which an inner end ring is frustoconical and with is connected to the smoke pipe and finally an outer end pipe is provided, simultaneously with Representation in dash-dotted lines another position for the outlet of the smoke pipe,

3 shows a cross section for this according to section line III-III according to Fig. 2 on an enlarged scale, the section being taken through the air openings, which are on an outer ring and which are horizontal. Have axis, and

Fig. K shows a cross section through an embodiment, wherein the air openings are arranged so that their axes enclose an angle of 120 and are directed obliquely downwards.

The generator shown in Fig. 1 wdat an outer cylinder « drical ring 1, which in turn receives an inner ring 2 concentrically .. This inner ring is supported against the Inner wall of the outer ring 1 by interposing three intermediate pieces or supports 3. These form three pillars an angle of 120 between each other.

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On the front side, the outer ring has an opening 4, which is used for Sucking in the air surrounding the system is used. The outer ring furthermore has a viewing window 4-a for observing the regulation of the burner. The air intake system has a Type suction fan 5 ", which is driven by an electric motor 6 is driven. At the other end of the motor shaft, a pump 7 is connected to the supply of fuel for served the burner

The inner ring 2 carries a plate with a ring 8, which in turn is firmly connected to a device in the manner of a Venturi nozzle 9, at the end which is located after the inlet side of the air svu, which is supplied by the ventilation system. In the middle area of the ring 8 and the Venturi nozzle 9 there is "the burner 10". This burner 10 is equipped with an electric valve 11 on the side facing the fan 5. Furthermore, the burner 10 is provided with an electrode known per se 12 for lighting the burner * Near the end 13 of the outer ring 1, the latter carries a rim or a bead Ik for the purpose of assembling the adjoining ring element for the assembly of the adjoining inner rings,

As can be seen from FIG. 2, the outer ring 1 of the generator is followed by further outer rings 1-a, 1-b, 1-c, 1-d and 1-e on. The end ring 1-e is through on its front side an annular plate 16 closed through which the smoke pipe 17 is passed. The inner ring 2 is concentrated

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Trically arranged to the outer ring 1 and is supported by three supports 3 in relation to this. This inner ring 2 is followed by further inner rings 2-a, 2-b, 2-c, 2-d and 2-e. The inner ring 2-e or the end ring is designed in the shape of a truncated cone in such a way that the small diameter of this frustoconical ring is adapted to the smoke pipe 17 ₀

Another advantageous embodiment of the invention The device consists in reducing the number of inner rings wrestle. In this case, the frustoconical inner ring 2-f is shown in broken lines in FIG. 2 Place arranged and the smoke pipe 17-a, also executed in dash-dotted lines, is through the wall of the outer ring 1-d passed through. This last-described arrangement of the Smoke tube is not limited to the position shown in dash-dotted lines in Fig. 2, but you can the Provide the outlet of the smoke pipe 17a at any suitable point over the entire length of the device or system.

According to FIG. 3, the outer ring 1-a has distributor openings l8 and l8-a for the pulsating hot air, these air openings being formed by pipe sockets whose axes run horizontally. Advantageously, ji baffles 19 and 19-a or suitable deflector means are provided. The outer ring 1-a is surrounded by a clamp 20 composed of three parts, which in turn is firmly connected to a tie rod 21. Pig. Finally, FIG. 3 shows how the inner ring 2-a is held in relation to the outer ring 1-a by supports 3, 3-a and 3-b.

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According to FIG. K _we , the outer ring 1-d has openings 22 and 22-a for the distribution of pulsating hot air, these openings being formed by pipe pieces _t the axes of which enclose an angle of 120 to one another, the axes being inclined obliquely downwards . The openings can in turn be equipped with baffles or other suitable deflection members 23 and 23-a.

The outer rings, which are located between the rings 1 and 1-e, each have a rim or a bead for assembly at one of their ends, these assembly beads corresponding to the assembly bead Ik of the outer ring 1; likewise, the inner rings between the inner rings 2 and 2-e each have a rim or bead at one of their ends, which corresponds to the mounting bead 15 of the inner ring 2. At their other end, the rings have a neck for connection to the ring ends provided with a bead.

It is easy to see that the number of intermediate rings depends on how long the room in question is to be heated or ventilated. The arrangement of the outlet for the flue gases also depends on the fhc ± i ± KkkK ± Jcn local conditions. The position and the direction of the axes of the Verteij.eröffnungen depend on the circumstances of the

air conditioning to be achieved! the volume can continue

the pulsating hot air by means of the corresponding deflection

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sheet metal «foxwi. Control flaps can be set or controlled and regulated as required.

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The annular space between the inner rings and the outer rings is formed, represents the chamber for the heat exchange.

The combustion chamber, which is formed by the inner rings and from which the burned exhaust gases escape through the smoke pipe to the outside, is with devices for automatic control These devices can interrupt the function of the burner or restart the burner set. This is expediently done according to a preset Program, e.g. as a function of the temperature, in particular the room temperature, while the above Electric valve the amount of fuel supplied, including the shut-off of the fuel supply, regulates. The electric valve can also be used to control the feed pump for the fuels.

It should be expressly emphasized that the invention does not apply to the embodiment shown in the drawing limited, although this is a particularly advantageous embodiment. For example, it is possible, according to a another embodiment of the invention and according to another Purpose of using the device or system for ventilation. For this purpose, care must be taken to ensure that the Turn off the burner using the solenoid valve. Bs is too

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possible to use a different system to provide for suspending the device, as shown in Fig. 3, for example} so they can pivot, for example, the three-part clamp at an angle of 60 ° and two tie rods in it, instead of a

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Tie rod 21, fasten, in each case on the connecting pieces of the clamp parts with each other. You can also choose the position of the air distribution openings differently, for example with vertical axes, with at least one opening pointing downwards. You can finally atxch a of the air openings to use an additional distribution network to dine, with the help of a fixed or movable flexibly connected housing made of suitable material.

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Claims (1)

pl-Ing. Friedrich Rohne pt * nt «nw * lt
SKÖtal / Post'ad, 250265 Claims 1.) Take care? for the generation of plexiglass warm resp. Hot air for heating and / or ventilating buildings, in particular Industrial or agricultural buildings, preferably wedse from finem hocJifplpjenen place of the building, with a Heat exchanger and a variable length housing, characterized in that a generator with at one end a fuel operated burner is provided, and that concentric to each other inner and outer rings formed in such a way and are arranged to the burner that between A space for heat exchange is formed in the rings. 2. Apparatus according to claim 1, characterized in that the concentrically arranged inner and outer rings have a cylindrical shape and surround the burner in such a way that the inner ring surrounds the combustion chamber and the annular space between the inner and outer ring is designed as a heat exchanger. Device according to claim 1 or 2, characterized in that the heat exchange chamber is arranged one behind the other cylindrical rings as required in adaptation to the air-conditioned Room vprinngorbnr st. 009885 / U1 8 BAD ORIGINAL _Copy 4. Device ¹ ', according to claim 3 ν thereby. characterized in that the last inner ring is designed in the shape of a truncated cone, that the inner ring is connected to the outside in the area of the small diameter to a pipe for "guidance of the smoke or the burned exhaust gases, and that the last outer ring is closed off at the end by an annular plate, through which the smoke pipe is passed. 5. Device according to one of claims 1 to 3, characterized in that the last outer ring is closed at the end by a closed plate, that the smoke pipe is passed through a point in the cylinder wall of the outer rings, and that the number of inner rings is correspondingly the arrangement of the smoke pipe is reduced. 6. Device according to one of the preceding claims, characterized in that the end face of the first outer ring has an opening for the entry of fresh air, that behind this fresh air opening in the central region, a burner connects which is supplied by a portion of the fresh air supplied that the Burner is provided with a Venturi tube or nozzle that a suction fan is arranged between the opening for the inlet of the fresh air and the burner, which a part of the fresh air supplied as a pulsating air flow into the annular space between the inner and outer ring leads.' 7. Device according to one of the preceding claims, characterized in that the outer rings have distributor openings for the pulsating air flow. 009885 / U18 _Gopy BAD ORiGiNAL 202Η86 8. Device according to claim 7, characterized in that that at the outlet opening for the pulsating supply air flow adjustable baffles or control flaps connected siml « 9. device according to one of the preceding claims, characterized in that the fan is driven by an electric motor which at the same time is a fuel pump ZTir drives the supply of the burner. 10. Device according to one of the preceding claims, characterized in that the burner with a control valve and an electrode. 11. Device according to one of the preceding claims, characterized in that the outer and inner rings are close one end of which is provided with a mounting bead and is designed in such a way that the combustion chamber and the space of the heat exchange can be extended by inserting rings into one another at the ends. 009885 / U18