JPS58168868A - Heat generator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention comprises a heat pump having at least one cooling section including at least one evaporator, a compressor and a condenser, wherein at least one of the evaporator and the condenser has a cooling or cooling section. The present invention relates to a heat generating device which is configured as a conduit for containing a cooling medium in a heat exchanger which is supplied with a medium to be heated.

In known devices of this type, the conduits forming the evaporator and the condenser and through which the cooling medium is passed are arranged coaxially in another conduit through which the medium to be heated or cooled passes. The latter conduit can also be wrapped around the compressor. These conduits, which run coaxially in and out of each other, can practically no longer be separated from each other once they have been fitted in and out. Therefore, if the condenser or evaporator becomes dirty or malfunctions, it cannot be cleaned or replaced.

For this purpose, in this known device, the entire heat exchanger has to be disassembled and replaced, so that not only the cooling medium circuit has to be modified, but also the heat exchanger has to be emptied. As a result, costs increase. Due to the use of conduits that fit coaxially inside and out, the known device involves pre-assembling the cooling part as a complete structural unit, and then this pre-assembled structural unit being subsequently assembled with other pre-assembled structural units. It would be practically impossible to put them all together.In fact, in the known device, a heat exchanger formed by a filter conduit extending coaxially inside and outside and attached to a condenser or evaporator is completed, and compared to an assembly. costs and this has a negative impact on production. The known device is therefore inconvenient to assemble and maintain.

Quite apart from these points, in the known devices large flow resistances have to be overcome in the area of the heat exchanger attached to the condenser or evaporator, and for this purpose it is difficult to circulate the medium to be cooled or heated. requires a powerful circulation pump and is therefore economically disadvantageous. Furthermore, in known devices, the heat exchanger, to which the medium to be heated or cooled is applied, is very difficult to dry without tampering with the cooling parts, and if such heat pumps are installed outdoors, they may freeze. There is a risk of Another disadvantage of the known device is that the insulation of the heat exchanger attached to the evaporator or condenser is very poor, which likewise has a negative impact on the economy. The known devices are therefore economically unsatisfactory.

Starting from this, the object of the invention is to avoid the disadvantages of the known devices and to provide not only a simple assembly and disassembly of the entire cooling part as a complete structural unit, but also a relatively simple solution on the part of the heat exchanger. The object of the present invention is to provide a device of the above-mentioned type, in which a high pressure loss is guaranteed, and at the same time a compact construction and effective insulation are possible.

According to the present invention, this problem is solved as follows. That is, a heat exchanger containing at least one of an evaporator and a condenser has a basin opening on one side with a connection for the medium to be cooled or heated, and conduits containing the cooling medium are respectively connected to this basin. This conduit is attached to a lid that closes the acupoint.

This measure makes it possible to preassemble the cooling section as a complete structural unit, the conduits forming the evaporator and condenser being easily introduced into the pot heat exchanger like a rod heater or an injection heater. , which greatly simplifies production as well as maintenance and repair; therefore, production and operating costs are advantageously influenced. Another advantage of the measure according to the invention is that the output can be changed easily with a small number of parts. For this reason, the cooling section can easily be replaced by another cooling section with a larger condenser and evaporator. The structural unit including the heat exchanger can then remain unchanged for all magnitudes of power.

Furthermore, in the device according to the invention only relatively small pressure losses occur on the heat exchanger side, which makes it possible to use relatively small circulation pumps with low power consumption. Furthermore, it is possible to effectively insulate the pots used to form the heat exchanger. The advantage obtained by the invention is that an excellent thermo-economy is therefore obtained.

In an advantageous embodiment of the invention, the conduit provided in the area of each vase and forming the condenser and evaporator is in the form of an exposed coiled tube that can be introduced into the vase close to the wall and in the lid that closes the vase. installed.

By this measure a large heat transfer surface is obtained with a relatively small space requirement, whereby the power output is advantageously influenced and easy access of the condenser and evaporator suspended in the lid is possible. In this case, a tube can be provided in the area of each coil tube, which is surrounded by the coil tube and is attached to the lid.

the tubes each define a flow chamber containing a coiled tube;
The flow through the heat exchanger ensures the guidance of the filter medium, so that the heat transfer is likewise advantageously influenced.

According to another particularly preferred measure, the vase is assembled into a block with a frame and preferably embedded in a foam material. Not only does this measure provide excellent insulation of the vase, but at the same time advantageously a self-supporting structural part is obtained, and no holding frame is required for holding the vase or the like, which also has an advantageous effect on costs.

In order to ensure not only monovalent operation but also bivalent operation, a particularly advantageous further embodiment of the invention provides that both tails or at least the blocks accommodating the pots attached to the condenser are provided with It is possible to provide a collection of flow heaters which are arranged in the background and can be heated normally by passing the medium to be heated through it.

By this means, there are two structural units that can be completely preassembled or manufactured, namely a cooling section including an evaporator, a compressor and a condenser, and a crucible forming a heat exchanger and a normally heatable flow heater. You can block. This greatly simplifies installation and maintenance. At the same time, this results in a so-called modular construction, which allows assembly in several stages, which has an advantageous effect on economy. First of all, only the blocks can be attached in the first step. A cooling section can be added in a second assembly step.

By combining the conventional heatable flow heater into a heat exchanger-side structural unit, it is possible to connect the conventional heatable flow heater directly to the associated condenser-side heat exchanger. Therefore, long connecting conduit and associated installation,
Disadvantages such as insulation, pressure loss, and heat loss are eliminated. Due to the direct connection between the flow heater and the condenser-side heat exchanger, both parts provide a device that is relatively easy to control in terms of control technology. Furthermore, the required control equipment may be significantly simpler than in systems that normally employ separate heatable flow heaters. If ordinary flow heaters are grouped together on the block side, noise will be significantly reduced. A particular advantage of the measure according to the invention is that the entire block fitted with the cooling part can be installed as an alternative to a conventional heat generating device, for example in the form of a heating zeiler, which guarantees both monovalent and bivalent operation. The advantages obtained by this measure therefore consist in compactness, simplicity and ease of installation, and thus overall good economy.

This idea can be further developed by connecting a flow heater in series with the crucible attached to the condenser. Since the medium to be heated flows through the crucible and the flow heater in any case, it is possible to switch from monovalent to bivalent operation or vice versa by connecting or disconnecting the heat pump or the flow heater. In this case, it is preferable that the flow heater is located downstream of the pot.

Bivalent parallel operation is thereby realized particularly easily. In this case, the medium to be heated is preheated by the condenser of the heat pump and then roughly brought to the desired final temperature by means of the flow heater. This is therefore a particularly economical operation.

According to a further development of the invention, the two spigots can be closed by a common lid. Advantageously, the common lid and the mounting of the entire cooling part form a plate at the same time. At that time, the compressor is cold
The attachment of the part can be such that it is placed on the center of the lid, which serves as a plate. Advantageously, the compressor is surrounded by an acoustic hood supported on the block containing the vase.

Further advantageous developments of the invention emerge from the following description of exemplary embodiments with the aid of the drawings.

The basic structure and operation of a heat pump are well known, and therefore further explanation will be omitted. The heat pump shown in FIG. 1 consists of a cooling section that is constructed as a structural unit and includes a compressor 1, an evaporator 2, and a condenser 3, and a foam block 4 that supports the structural unit that forms this cooling section. , this block 4 has two pots 5 embedded in the foam material and arranged side by side, into or out of which a medium is to be cooled by the evaporator 2 or heated by the condenser 3. It is provided with a connection part 6 or 7 for making the connection. The foam block 4 is equipped with a thin plate envelope 8 which increases its inherent stability and impact strength. The crucible 5 embedded within the block 4 is fixed by the foam material surrounding it. In such a self-supporting structure, the holding frame can be omitted. The top plate 9 that covers the top surface of the block 4 is cut out in the range of the pot 5,
It is attached to these points in the form of a flange.

One of the pots 5, in this case the pot 5 shown on the right in FIG. 1, is assigned to the evaporator 2, and the pot 5 shown on the left in FIG. The evaporator 2 and the condenser 3 are composed of conduits through which a cooling medium 2 is passed, which is evaporated at a relatively low temperature in the evaporator 2 and condensed while dissipating heat in the condenser 3 after being compressed by the compressor 1. In the illustrated embodiment, the coil tubes 13 are formed in the form of exposed coiled tubes 13 which can be introduced into the respective acupoint 5 approximately coaxially with respect to the axis of the acupoint 5 . The diameters of the coiled tubes forming the evaporator 2 and the condenser 3 are dimensioned such that the turns of the coiled tubes are located close to the wall of the pot 5. To increase the heat flow, the condenser and evaporator conduits are provided with fins in their outer regions. The fill tubes 13 forming the evaporator 2 and the condenser 3 are each attached to a lid 10 which closes off the associated pot 5. In the illustrated embodiment,
A common lid 10 is provided which extends over both pots 5.

The lid 10 rests on the top plate 9 via a sealing piece and is removably connected to the top plate 9 by screws 11 in the area of the upper edge of each vase 5, as best seen in FIG.

Compressor 1, evaporator 2 and condenser 3 each have a refrigerant inlet and a refrigerant outlet and are connected to each other by conduits 12, which for simplicity are shown only in dashed lines in FIG. 1, to form the desired refrigerant circuit. are doing. In FIG. 1 a screw connection is shown in the region of the inlet and outlet of the cooling medium. However, in practice the conduit 12 can be constructed in one piece with the conduits provided for forming the evaporator 2 and the condenser 3.

The medium passing through the heat exchangers, each defined by a crucible 5, is guided along a coiled tube 13 forming an evaporator 2 and a condenser 3. For this purpose, a tube 14 is provided in the area of each coil tube 13, which is surrounded by the coil tube 13 at sufficient intervals and attached to the lid 10, the lower end of which reaches the area of the inlet tube piece 6. Each tube 14 is a pot 5
In the area of the walls of the pipe 1 , a circumferentially extending annular space 15 is defined, which connects the inlet pipe piece 6 and the outlet pipe piece 7 . The tube 14 that enters the vase 5 can be easily welded to the lid 1o. In the area of the lower edge of the tube 14, there is a sufficient distance from the bottom of the corresponding pot 5, so that the lid 10 can be attached to the top plate 9.
No forcing forces occur when installing the cylinder 14. The space inside the tube 14 is likewise filled with the flow medium. However, this flow medium does not take part in the circulation. Industrial water or hot water is usually used as the flow medium to be heated. Industrial waste water, ground water, water heated by a header, etc. may be used as the medium to be cooled. In order to provide sufficient corrosion protection, areas of the inner surface of the pot 5 can be enameled, thereby providing a high resistance even to corrosive liquids. The lid 10 and the tube 14 attached thereto can be made from special steel. Coiled tube 13 forming evaporator 2 and condenser 3
consists of a steel tube, which is passed through the lid 10 on the inlet and outlet sides and can be screwed or brazed to the connecting conduit 12. The coiled tube 13 can also be configured as a double coil, the adjacent ends of which form an inlet and an outlet. In the embodiment shown, the coil tube 13 is formed as a single coil, at its lower end followed by a rising conduit 16 which rises towards the lid 10. In this case, the ascending conduit 16
extends into the tube 14, in particular in order to save space and not to impede the flow in the annular space 15.

A compressor 1 connected in a known manner to an evaporator 2 and a condenser 3 has an inlet end and an outlet end connected to a lid 1 by means of upright legs 17.
It rests on this lid 10 on the side opposite the fill tube 13 which is brazed to the 0 and is screwed to it for sufficient security.

In order to avoid the transmission of vibrations from the compressor 1 to the lid 10, a vibration damping piece 18, for example designed as a rubber damping piece, is provided.
can be placed between the upright legs 17. The compressor 1 is surrounded by a soundproof hood 19. This soundproof hood 19 has a wall 2 constructed, for example, as a plastic deep-drawn part.
0, and its inner surface is lined with a sound-absorbing material 21, such as a foam band. The soundproof hood 19 rests on a folded edge 22 extending around the top plate 9. For this purpose, the soundproof hood 19 extends around the area of its lower edge, and the overlapping edge 23
This claw edge 23 covers the bent edge 22K of the top plate 9. To avoid direct contact, the overlapping edge 23 is fitted with a circumferentially extending sealing strip 24 to prevent the transmission of vibrations. When the hood 19 is installed, the compressor 1 is completely surrounded, as can be clearly seen in FIG. To facilitate handling 2 of the cooling part, which can be preassembled as a complete structural unit on the lid 10 as an assembly plate, the lid 10
A notch 26 can be provided in the folded edge 25 in the range of both short sides for the hand of a crane key or an assembling worker. This allows the entire cooling section to be lifted out of the block 4 or placed therein as a complete structural unit.

In order to facilitate the transport of the block 4, in the area of the short side of the folded edge 22 of the top plate 9, through holes 27 are provided in line with each other for passing the holding rods that allow convenient handling of the block 4. can be provided.

Since the basic structure of the apparatus according to FIGS. 4 to 6 is the same as that of the apparatus according to FIGS. 1 to 3, the same reference numerals will be used for the same parts and the explanation of the same parts will be omitted. 1st
In contrast to the monovalent configuration shown in Figures 3 to 3, here a bivalent configuration is used, which combines a heat pump and a conventional heating device. In this case, for bivalent operation, a normally heatable flow heater 28 is provided and, as shown in FIGS. It is connected. The flow heater 28 is suspended on the top plate 9 via a spacing piece 29 and, like the vase 5, is embedded in the foam filling the frame 8, thereby ensuring insulation, support and soundproofing over the entire surface. The flow heater 28 has a direct fluid connection with the crucible 5 attached to the condenser 3;
It is provided as close as possible to this pot 5. In the illustrated embodiment, two pots 5 are grouped together in a block 4.
are arranged at a distance from each other so as to provide a flow heater 28 in the area between both pots 5. This results in a very compact and beautifully shaped composition.

In the illustrated embodiment, the flow heater 28 is constructed as a heating boiler and has a combustion chamber 31 defined by an insert wall 30 and a flue 32 adjoining it.

In this case, it is preferable to use a low-temperature heating boiler that can be operated in a temperature range in which the heat pump also operates without fear of corrosion. An oil or gas burner 33 is provided for heating the combustion chamber 31. For this purpose, the heating boiler is equipped on the burner side with a tube piece that passes through the frame 8 of the block 4, to the flange 34 of which the burner 33 can be flange-connected.

On the flue side, facing the burner 33, there is provided an outlet tube piece 35 which is similarly drawn out from the frame 8, and to this tube piece 35, pipes leading to the chimney can be equally connected. The flue 32 is accessible via a maintenance swinging lid 36, which can be reached through a hole in the block 4, which can be closed by a swinging lid 37 provided in the region of the frame 8. can.

Instead of the oil- or gas-fired stone flow heater 28, it is also possible to provide other conventionally heatable flow heaters, such as electrically heatable or solid or powder fuel heatable flow heaters.

Combustion chamber 31 and flue 3 of the heating boiler provided here
The jacket surrounding 2 is double-walled in order to form a flow chamber 38 for the medium to be heated. The flow chamber 38 is arranged downstream of the annular space 15 of the condenser side basin 5 in terms of flow. As a result, the flow heater 28 provided on the downstream side
A series connection is made, which ensures particularly economical operation and particularly easy control of the entire fluid series circuit.

In the embodiment shown, the flow chamber 38 and the condenser side basin 5 are connected to each other by a short communicating sleeve 39. A communicating sleeve 39 is provided in the flow chamber 38 and in the lower region of the acupoint 5 . The inlet pipe piece 6 and the outlet pipe piece 7, which allow the medium to be heated to flow into and out of the fluid unit formed by the flow chamber 38 and the basin 5, are arranged in the upper part of the basin 5 or the flow chamber 38 and As best seen in Figure 5, the supply conduits can be arranged side by side for easy installation.

The inlet for the medium to be heated opens into the condenser side pot 5 . Outflow takes place from the flow heater side flow chamber 38. The inflow and outflow in the upper part and the transfer in the lower part ensure that the entire device is always filled with liquid.The evaporator side pot 5 is connected to the primary energy carrier via the inflow and outflow pipe pieces 6 and 7. For example, it is supplied with groundwater.

Instead of the upright arrangement shown, a horizontal or inclined transverse arrangement of the vase is also possible. However, the illustrated upright arrangement
It has the special advantage that the contents of the jar do not spill out even if the lid is removed.

[Brief explanation of the drawing]

Figure 1 is a vertical sectional view of a monovalent heat generating device formed by a heat pump that supplies water to the evaporator side and the condenser side, and Figure 2 is a plan view of the device shown in Figure 1 with the soundproof hood removed. , FIG. 3 is a side view of the device of FIG. 1 with a soundproof hood attached, FIG. 4 is a vertical sectional view of the bivalent heat generating device corresponding to FIG. 1,
Figure 5 is a side view of the device of Figure 4 with the soundproof hood attached;
FIG. 6 is a plan view of the apparatus of FIG. 4 with the soundproof hood removed. l... Compressor, 2... Evaporator, 3... Condenser, 4
...Vase, 6,7...Connection part (inflow pipe piece and outflow pipe piece), 10...Lid

Claims (1)

[Claims] 1. A heat pump with at least one cooling section including at least one evaporator (2), a compressor (1) and a condenser (3), the evaporator (2) and At least one of the condensers (3) is configured as a conduit for accommodating the cooling medium, provided in a heat exchanger which is supplied with the medium to be cooled or heated; and a condenser (3), the heat exchanger having a pot (5) with connections (6, 7) for the medium to be cooled or heated, open to the evaporator side and with connections (6, 7) for the medium to be cooled or heated; (2) or a conduit forming a condenser (3) can respectively be introduced into the tail (5), said conduit being attached to a lid αα closing the vase (5); Generator. 2. Place the pot (5) near the wall, preferably made of a tube with fins.
In the area of each conduit in the form of an exposed coiled tube (13) which can be introduced into the tube, there is provided a filter tube (14) surrounded by this coiled tube (13) and attached to the lid (10). A device according to claim 1, characterized in that: 3. The vase (5) is assembled into a block (4) with a frame (8), preferably embedded in foam material, and a top plate (9) to which this block (4) is attached like a flange to the vase (5). ), and a lid (10) is removably fixed to the top plate (9). 4. In the block (4) containing the pot (5) attached to both tails (5) or at least the condenser (3), a heating device is provided near the pot (5) attached to this condenser (3). 5. The device according to claim 3, characterized in that the flow heater (281) is combined with a flow heater (281) which can be normally heated by being passed through the medium to be heated.5. A combustion chamber (in which combustion can be carried out with an oil or gas burner (33))
31) and a double-walled jacket surrounding this combustion chamber to form a flow chamber (38);
5. Device according to claim 4, characterized in that the jacket has a combustion gas outlet tube piece (35), a burner mounting flange (34) and a cleaning hole. 6. The flow heater (28) and the pot (5) attached to the condenser (3) are in series with respect to the flow, and the flow heater (28) is connected to the pot (5) attached to the condenser (3). The boxwood (5) and the flow heater (28) provided further downstream and associated with the condenser (3) are flow-wise connected to each other by at least one communication sleeve (39) provided in their lower region. , and in their upper range the inflow pipe pieces (
6) and an outlet tube piece (7). 7. The pot (51) attached to the condenser (3) and the evaporator (2), respectively, and the flow heater (28) are in a common block (
4), and cover the entire surface as much as possible with this block (4)
An example of an embedded flow heater is provided between the two spigots (5) and suspended on the top plate (9) covering the block (4) preferably via a spacing piece (29). 5. A device according to claim 4, characterized in that: 8. The evaporator (2) and condenser (
3) respectively and preferably with a flow heater (28) between them, with a reinforcement preferably formed as a bulge (18) in the area of each pot (5); It can be closed by a lid (10), which is a lid (10).
5. Device according to claim 4, characterized in that the compressor (1) supports on its upper side a compressor (1) opposite preferably to the center of the flow heater (28). 9. The lid (10) preferably has two opposing handles formed as a folded edge (25) with a notch (26) and a top plate (9) extending around the circumference thereof and a folded edge (22).
), and this folded edge (22) is characterized in that, in the area of two opposite sides, this bent edge (22) has mutually aligned through openings (27) for a removable holding rod. Apparatus according to paragraph 3. 10. each pot (5) is provided with a protective layer in the area of its inner surface;
2. Device according to claim 1, characterized in that it is preferably enameled. 11. A soundproof hood (19) is fitted onto the bent edge (22) extending around the top plate (9) via a sealing strip (24) which also extends around the circumference, and the claw edge ( 3. Device according to claim 3, characterized in that the top plate (9) is covered by a top plate (9).