Heat exchanger and water supply device
Patent Information
- Application Number
- CN202522395370.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-11
- Publication Date
- 2026-10-30
- Estimated Expiration
- 2035-11-11
AI Technical Summary
[0004]本申请提供一种换热器及供水装置，旨在解决现有换热器的部件数量多、组装繁琐，且易发生漏液的技术问题
[0010]本实用新型提供的换热器及供水装置，通过设置第二隔离件覆盖靠近换热面板的其中一个换热板的第一穿孔或者第二穿孔，可隔离第一方向上的最后一个流道与其他流道，因此，不需要在换热面板上设置穿孔，也不需要设置专门的密封件用以密封该穿孔，即换热面板可以一体成型。因此，本申请提供的换热器减少了零部件的数量，简化了组装步骤，并且由于不需要在换热面板上开设穿孔，也降低了漏液风险。
Smart Images
Figure CN224921022U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water treatment device technology, and in particular to a heat exchanger and water supply device. Background Technology
[0002] A heat exchanger (also known as a heat exchanger) is a key component in a water dispenser. The basic function of a heat exchanger is to transfer heat between a heat exchange medium (such as a gas or liquid) and water to achieve the purpose of heating or cooling the water.
[0003] In the prior art, in the thickness direction of the heat exchanger, the joint is connected to one of the outermost heat exchange plates, which is defined as the first heat exchange plate in the thickness direction. The other outermost heat exchange plate is the last heat exchange plate in the thickness direction. The last heat exchange plate has perforations to allow for the placement of a spacer between the last heat exchange plate and the adjacent heat exchange plates to isolate the last two adjacent flow channels. Additionally, a seal is placed on the last heat exchange plate to seal the perforations. This design results in a large number of heat exchanger components, complicated assembly, and a high risk of leakage. Utility Model Content
[0004] This application provides a heat exchanger and a water supply device, which aims to solve the technical problems of existing heat exchangers having a large number of components, complicated assembly, and a tendency to leak.
[0005] According to a first aspect of this application, one embodiment provides a heat exchanger including a heat exchange assembly, a plurality of first isolation elements and at least two second isolation elements; The heat exchange assembly includes a plurality of plates spaced apart along a first direction to form sequentially arranged flow channels in the first direction; The last plate in the first direction is defined as a heat exchange panel, and the remaining plates are heat exchange plates. Each heat exchange plate is provided with at least two first perforations and at least two second perforations to form at least two first channels and at least two second channels within the heat exchange assembly. A first isolation member is connected between two heat exchange plates, and a second isolation member is connected to one of the heat exchange plates near the heat exchange panel and covers the first or second perforation of that heat exchange plate, so that the first channel communicates with a portion of the flow channel, and the second channel communicates with another portion of the flow channel. The heat exchange panel is integrally formed and is sealed to the adjacent heat exchange plate along the edge. In one embodiment, the flow channel forms an odd-numbered layer flow channel and an even-numbered layer flow channel arranged sequentially in the first direction; The first isolation element is connected between two adjacent heat exchange plates. A portion of the first isolation element is used to isolate the first channel and the odd-numbered flow channels, and another portion of the first isolation element is used to isolate the second channel and the even-numbered flow channels. The second isolation element is connected to the last heat exchange plate in the first direction. The first channel is isolated from all the odd-numbered flow channels, and the second channel is isolated from all the even-numbered flow channels.
[0006] In one embodiment, when the number of the plates is odd, the second spacer covers the second perforation of the last heat exchange plate in the first direction; When the number of the plates is even, the second isolation member covers the first perforation of the last heat exchange plate in the first direction.
[0007] In one embodiment, the second isolator includes a main body and a connecting portion connected to the main body in the circumferential direction; The main body is located on the side of the connecting portion closer to the heat exchange panel, and the end of the connecting portion away from the main body is connected to one of the heat exchange plates close to the heat exchange panel.
[0008] In one embodiment, the connecting portion is inclined and smoothly transitions with the main body and the heat exchange plate connected thereto; And / or, the main body is attached to the heat exchange panel. In one embodiment, the second isolation member and the heat exchange plate connected thereto are integrally formed. In one embodiment, the first isolation member and one of the two heat exchange plates connected thereto are integrally formed.
[0009] In one embodiment, the heat exchanger further includes at least two first connectors and at least two second connectors, both of which are connected to the first heat exchange plate in the first direction; The first connector is connected to the first channel and corresponds one-to-one with the first channel; the second connector is connected to the second channel and corresponds one-to-one with the second channel. In one embodiment, the aperture of one of the first connectors is larger than the apertures of the other first connectors and all the apertures of the second connectors; Alternatively, the aperture of one of the second connectors may be larger than the apertures of the other second connectors and all the apertures of the first connectors. According to a second aspect of this application, one embodiment provides a water supply device including the heat exchanger described in the first aspect.
[0010] The heat exchanger and water supply device provided by this utility model isolates the last flow channel in the first direction from other flow channels by providing a second insulating member to cover the first or second perforation of one of the heat exchange plates near the heat exchange panel. Therefore, it is not necessary to provide a perforation on the heat exchange panel, nor is it necessary to provide a special sealing member to seal the perforation; that is, the heat exchange panel can be integrally formed. Thus, the heat exchanger provided by this application reduces the number of parts, simplifies the assembly steps, and reduces the risk of leakage because it eliminates the need for perforations on the heat exchange panel. Attached Figure Description
[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0012] Figure 1 This is a schematic diagram of the heat exchanger provided in one embodiment of the present invention. Figure 2 This is a schematic diagram of the heat exchanger provided in another embodiment of the present utility model from another perspective; Figure 3 This is an exploded view of the heat exchanger provided in this embodiment of the utility model; Figure 4 This is a right view of the heat exchanger provided in this embodiment of the utility model; Figure 5 yes Figure 4 A cross-sectional view along line AA; Figure 6 yes Figure 4 A cross-sectional view along line BB; Figure 7 This is a schematic diagram of the assembly structure of the last heat exchange plate and the second isolation member in the first direction from one perspective, provided by an embodiment of the present invention. Figure 8 yes Figure 7 A magnified view of a section at point C; Figure 9 This is a schematic diagram of the assembly structure of the last heat exchange plate and the second isolation member in the first direction from another perspective, provided by an embodiment of the present invention. Figure 10 yes Figure 9 A magnified view of a section at point D; Figure 11 This is a schematic diagram of the assembly structure of the heat exchange plate and the first isolation component provided in an embodiment of the present utility model; Figure 12yes Figure 11 A magnified view of a section at point E in the middle.
[0013] Explanation of icon numbers: 100. Heat exchanger; 10. Heat exchange assembly; 11. Plate; 11a. Heat exchange plate; 11b. Heat exchange panel; 111. First perforation; 112. Second perforation; 12. Odd-numbered flow channel; 13. Even-numbered flow channel; 14. First channel; 15. Second channel; 16. First end; 17. Second end; 20. First isolation member; 30. Second isolation member; 31. Main body; 32. Connecting part; 40. First connector; 50. Second connector.
[0014] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0016] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indicator will also change accordingly.
[0017] It should also be noted that when a component is described as "fixed to" or "set on" another component, it can be directly on the other component or there may be an intervening component present. When a component is described as "connected to" another component, it can be directly connected to the other component or there may be an intervening component present.
[0018] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.
[0019] like Figures 1 to 12As shown, the heat exchanger 100 provided in this embodiment of the present invention includes a heat exchange assembly 10, a plurality of first isolation members 20, and at least two second isolation members 30. The heat exchange assembly 10 includes a plurality of plates 11 arranged at intervals along a first direction X to form sequentially arranged flow channels in the first direction X. In this embodiment, the first direction X is... Figure 4 The heat exchanger 100 shown is oriented from left to right in its thickness direction. It can be understood that in other embodiments, the first direction X may also be... Figure 4 The heat exchanger 100 shown is oriented from right to left in its thickness direction.
[0020] The last plate 11 defined in the first direction X is a heat exchange panel 11b, and the remaining plates 11 are heat exchange plates 11a. Each heat exchange plate 11a is provided with at least two first perforations 111 and at least two second perforations 112 to form at least two first channels 14 and at least two second channels 15 within the heat exchange assembly 10. A first spacer 20 is connected between two heat exchange plates 11a, and a second spacer 30 is connected to one of the heat exchange plates 11a near the heat exchange panel 11b and covers the first perforation 111 or the second perforation 112 of that heat exchange plate 11a, so that the first channel 14 connects to a portion of the flow channel, and the second channel 15 connects to another portion of the flow channel. The heat exchange panel 11b is integrally formed and is sealed to the adjacent heat exchange plate 11a along its edge.
[0021] By employing the above technical solution, by opening first perforations 111 on each heat exchange plate 11a, with each heat exchange plate 11a having a corresponding first perforation 111, a first channel 14 connecting all flow channels is formed within the heat exchange assembly 10. By opening second perforations 112 on each heat exchange plate 11a, with each heat exchange plate 11a having a corresponding second perforation 112, a second channel 15 connecting all flow channels is formed within the heat exchange assembly 10. By providing a first isolation member 20 connected between two heat exchange plates 11a, and providing a second isolation member 30 connected to one of the heat exchange plates 11a near the heat exchange panel 11b, and covering the first perforation 111 or the second perforation 112 of that heat exchange plate 11a, the last flow channel in the first direction X is isolated from other flow channels.
[0022] The heat exchanger 100 provided in this application isolates the last flow channel in the first direction X from other flow channels by covering the first perforation 111 or the second perforation 112 of one of the heat exchange plates 11a near the heat exchange panel 11b with a second isolation member 30. Therefore, it is not necessary to provide a perforation on the heat exchange panel 11b, nor is it necessary to provide a special seal to seal the perforation, meaning that the heat exchange panel 11b can be integrally formed. Thus, the heat exchanger 100 provided in this application reduces the number of parts, simplifies the assembly process, and reduces the risk of leakage because it does not require a perforation on the heat exchange panel 11b.
[0023] In one embodiment, the flow channels form an odd-numbered layer of flow channels 12 and an even-numbered layer of flow channels 13 arranged sequentially in the first direction X. A first isolation member 20 is connected between two adjacent heat exchange plates 11a. A portion of the first isolation member 20 is used to isolate the first channel 14 and the odd-numbered layer of flow channels 12, and another portion of the first isolation member 20 is used to isolate the second channel 15 and the even-numbered layer of flow channels 13. A second isolation member 30 is connected to the last heat exchange plate 11a in the first direction X (i.e., the heat exchange plate 11a adjacent to the heat exchange panel 11b) and covers the first perforation 111 or the second perforation 112 of the heat exchange plate 11a. The first channel 14 is isolated from all odd-numbered layer of flow channels 12, and the second channel 15 is isolated from all even-numbered layer of flow channels 13. That is, the first channel 14 connects to all even-numbered layer of flow channels 13, and the second channel 15 connects to all odd-numbered layer of flow channels 12.
[0024] By adopting the above technical solution, a first isolation member 20 is set between two adjacent heat exchange plates 11a. A part of the first isolation member 20 isolates the first channel 14 and the odd-numbered flow channel 12, and another part of the first isolation member 20 isolates the second channel 15 and the even-numbered flow channel 13. A second isolation member 30 is set to connect to the last heat exchange plate 11a in the first direction X and covers the first perforation 111 or the second perforation 112 of the heat exchange plate 11a to isolate the last two adjacent flow channels in the first direction X, so that the first channel 14 is isolated from all odd-numbered flow channels 12 and the second channel 15 is isolated from all even-numbered flow channels 13.
[0025] In one embodiment, when the number of plates 11 is odd, the second isolation member 30 covers the second perforation 112 of the last heat exchange plate 11a in the first direction X; when the number of plates 11 is even, the second isolation member 30 covers the first perforation 111 of the last heat exchange plate 11a in the first direction X. Figure 5 , Figure 9 and Figure 10 As shown, in this embodiment, the plate body 11 is provided with ten, which is an even number, and the second isolation member 30 covers the first perforation 111 of the last heat exchange plate 11a in the first direction X.
[0026] Please see Figure 5 , Figures 7 to 10The second isolation member 30 includes a main body 31 and a connecting portion 32 circumferentially connected to the main body 31. The main body 31 is located on the side of the connecting portion 32 near the heat exchange panel 11b, and the end of the connecting portion 32 away from the main body 31 is connected to one of the heat exchange plates 11a near the heat exchange panel 11b. In specific applications, the connecting portion 32 is connected to a first perforation 111 or a second perforation 112 near one of the heat exchange plates 11a near the heat exchange panel 11b, thereby covering the first perforation 111 or the second perforation 112. By setting the main body 31 on the side of the connecting portion 32 near the heat exchange panel 11b, the space of the first channel 14 communicating with the flow channel can be expanded as much as possible, or the space of the second channel 15 communicating with the flow channel can be expanded as much as possible, thereby reducing the resistance of the liquid in the first channel 14 or the second channel 15.
[0027] In this embodiment, the connecting portion 32 is connected to the first perforation 111 of the last heat exchange plate 11a in the first direction X, so as to cover the first perforation 111. The main body portion 31 is located on the side of the connecting portion 32 close to the heat exchange panel 11b, so as to maximize the space of the first channel 14 connecting the even-numbered flow channels 13, thereby reducing the resistance of the water in the first channel 14.
[0028] In one embodiment, the connecting portion 32 is inclined and smoothly transitions with the main body 31 and the heat exchange plate 11a connected thereto. It is understood that in other embodiments, the connecting portion 32 may also be configured in other ways.
[0029] In one embodiment, the main body 31 is attached to the heat exchange panel 11b. Thus, when liquid flows into the first channel 14 or the second channel 15 and exerts an impact force on the main body 31, this impact force can be transmitted to the heat exchange panel 11b, relieving the stress on the main body 31 and extending the service life of the second insulating member 30. In this embodiment, the second insulating member 30 is connected to and covers the first perforation 111 of the last heat exchange plate 11a in the first direction X. The first channel 14 is used for water flow. When water flows into the first channel 14, because the main body 31 of the second insulating member 30 is attached to the heat exchange panel 11b, the impact force exerted by the water on the main body 31 can be transmitted to the heat exchange panel 11b.
[0030] In one embodiment, the second isolation member 30 and the heat exchange plate 11a connected thereto are integrally formed. This reduces the number of components in the heat exchanger 100, speeds up the assembly of the heat exchanger 100, and improves the sealing performance of the first perforation 111 or the second perforation 112 of the heat exchange plate 11a, preventing leakage. Of course, in other embodiments, the second isolation member 30 and the heat exchange plate 11a connected thereto can be manufactured separately.
[0031] In this embodiment, the second isolation member 30 and the last heat exchange plate 11a in the first direction X are integrally formed.
[0032] In one embodiment, the first isolation member 20 and one of the two heat exchange plates 11a connected thereto are integrally formed. This reduces the number of parts in the heat exchanger 100, speeds up the assembly of the heat exchanger 100, and reduces the risk of leakage. Of course, in other embodiments, the first isolation member 20 and one of the two heat exchange plates 11a connected thereto can be manufactured separately.
[0033] In this embodiment, the first isolation member 20 is integrally formed with one of the two adjacent heat exchange plates 11a.
[0034] Please see Figure 1 and Figure 5 The heat exchanger 100 also includes at least two first connectors 40 and at least two second connectors 50. The first connectors 40 and the second connectors 50 are both connected to the first heat exchange plate 11a in the first direction X. The first connectors 40 are connected to the first channel 14 and correspond one-to-one with the first channel 14. The second connectors 50 are connected to the second channel 15 and correspond one-to-one with the second channel 15.
[0035] In specific applications, one of the first connector 40 and the second connector 50 is used to transport water, and the other is used to transport the heat exchange medium. In this embodiment, the first connector 40 is used to transport water, and the second connector 50 is used to transport the heat exchange medium. Correspondingly, the first channel 14 corresponding to the first connector 40 is used to transport water, and the even-numbered flow channels 13 connected to the first channel 14 are used for water flow. The second channel 15 corresponding to the second connector 50 is used to transport the heat exchange medium, and the odd-numbered flow channels 12 connected to the second channel 15 are used for heat exchange medium flow. Furthermore, at least one first connector 40 is used for water input, at least one first connector 40 is used for water output, at least one second connector 50 is used for heat exchange medium input, and at least one second connector 50 is used for heat exchange medium output. Of course, in other embodiments, the first connector 40 can also be used to transport the heat exchange medium, and the second connector 50 can also be used to transport water.
[0036] In one embodiment, the radial dimension of the first channel 14 is larger than the radial dimension of the first connector 40. This reduces the resistance to the flow of water within the first channel 14, thereby promoting a more uniform distribution of water from the first channel 14 to each even-numbered flow channel 13, and from each even-numbered flow channel 13 to the first channel 14, further improving the heat exchange efficiency.
[0037] In one embodiment, the radial dimension of the second channel 15 is larger than the radial dimension of the second connector 50. This reduces the resistance to the flow of the heat exchange medium in the second channel 15, thereby promoting a more uniform distribution of the heat exchange medium from the second channel 15 to each odd-numbered flow channel 12, and from each odd-numbered flow channel 12 to the second channel 15, further improving the heat exchange efficiency.
[0038] In one embodiment, the heat exchange assembly 10 has a first end 16 and a second end 17 disposed opposite to each other along the second direction Y. At least one first connector 40 is disposed near the first end 16, and at least one first connector 40 is disposed near the second end 17. Correspondingly, at least one first channel 14 is disposed near the first end 16, and at least one first channel 14 is disposed near the second end 17. At least one second connector 50 is disposed near the first end 16, and at least one connector is disposed near the second end 17. Correspondingly, at least one second channel 15 is disposed near the first end 16, and at least one second channel 15 is disposed near the second end 17. This arrangement extends the length of the flow channel, thereby extending the flow time of water and heat exchange medium within the flow channel and improving heat exchange efficiency. Here, the second direction Y is the length direction of the heat exchanger 100.
[0039] In this embodiment, two of each of the first connector 40 and the second connector 50 are provided. In specific applications, the heat exchange assembly 10 is connected to one first connector 40 and one second connector 50 near both the first end 16 and the second end 17. It is understood that in other embodiments, at least three of the first connector 40 and the second connector 50 may also be provided.
[0040] In one embodiment, the orifice diameter of one of the first connectors 40 is larger than the orifice diameters of the other first connectors 40 and all the orifice diameters of the second connectors 50; or, the orifice diameter of one of the second connectors 50 is larger than the orifice diameters of the other second connectors 50 and all the orifice diameters of the first connectors 40. This provides a foolproof design and facilitates the installation of the heat exchanger 100 on the water supply device. In this embodiment, the orifice diameter of one of the second connectors 50 is larger than the orifice diameters of the other connectors. This second connector 50 is used to supply the heat exchange medium into the heat exchange assembly 10. This design also reduces the resistance to the flow of the heat exchange medium within the connector, allowing the heat exchange medium to be evenly distributed in the corresponding flow channels, which is beneficial for improving heat exchange efficiency.
[0041] This embodiment also provides a water supply device, including the heat exchanger 100 described above. By using the heat exchanger 100, the number of parts is reduced, the assembly steps are simplified, and the risk of leakage is also reduced.
[0042] In practical applications, the water can be heated or cooled depending on the heat exchange medium. When the heat exchange medium is a refrigerant, it can absorb heat from the water to cool it down so that the water supply equipment can supply cold water. When the heat exchange medium is a heat transfer medium (such as hot water), it can transfer heat to the water to heat it up so that the water supply equipment can supply hot water.
[0043] In this embodiment, the water supply equipment also includes a hot water tank (not shown), which is connected to a second connector 50 to provide a heat exchange medium (hot water) to the heat exchanger 100. Specifically, the hot water tank has an outlet and an inlet, one of the second connectors 50 is connected to the outlet, and the other second connector 50 is connected to the inlet, so that the heat exchange medium circulates within the hot water tank and the odd-numbered flow channels 12. This embodiment enables the water supply equipment to provide hot water by providing a hot water tank.
[0044] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.
Claims
1. A heat exchanger, characterized in that, Includes heat exchange components, multiple first isolation elements, and at least two second isolation elements; The heat exchange assembly includes a plurality of plates spaced apart along a first direction to form sequentially arranged flow channels in the first direction; The last plate in the first direction is defined as a heat exchange panel, and the remaining plates are heat exchange plates. Each heat exchange plate is provided with at least two first perforations and at least two second perforations to form at least two first channels and at least two second channels within the heat exchange assembly. A first isolation member is connected between two heat exchange plates, and a second isolation member is connected to one of the heat exchange plates near the heat exchange panel and covers the first or second perforation of that heat exchange plate, so that the first channel communicates with a portion of the flow channel, and the second channel communicates with another portion of the flow channel. The heat exchange panel is integrally formed and is sealed to the adjacent heat exchange plate along the edge.
2. The heat exchanger as described in claim 1, characterized in that, The flow channels form an odd-numbered layer flow channel and an even-numbered layer flow channel arranged sequentially in the first direction; The first isolation element is connected between two adjacent heat exchange plates. A portion of the first isolation element is used to isolate the first channel and the odd-numbered flow channels, and another portion of the first isolation element is used to isolate the second channel and the even-numbered flow channels. The second isolation element is connected to the last heat exchange plate in the first direction. The first channel is isolated from all the odd-numbered flow channels, and the second channel is isolated from all the even-numbered flow channels.
3. The heat exchanger as described in claim 2, characterized in that, When the number of the plates is odd, the second isolation member covers the second perforation of the last heat exchange plate in the first direction; When the number of the plates is even, the second isolation member covers the first perforation of the last heat exchange plate in the first direction.
4. The heat exchanger as described in claim 1, characterized in that, The second isolation member includes a main body and a connecting part connected to the main body in the circumferential direction; The main body is located on the side of the connecting portion closer to the heat exchange panel, and the end of the connecting portion away from the main body is connected to one of the heat exchange plates close to the heat exchange panel.
5. The heat exchanger as described in claim 4, characterized in that, The connecting part is inclined and smoothly transitions with the main body and the heat exchange plate connected thereto; And / or, the main body is attached to the heat exchange panel.
6. The heat exchanger as described in claim 1, characterized in that, The second isolation element and the heat exchange plate connected thereto are integrally formed.
7. The heat exchanger as described in claim 1, characterized in that, The first isolation element and one of the two heat exchange plates connected thereto are integrally formed.
8. The heat exchanger as claimed in any one of claims 1 to 7, characterized in that, The heat exchanger further includes at least two first connectors and at least two second connectors, wherein the first connectors and the second connectors are both connected to the first heat exchange plate in the first direction; The first connector is connected to the first channel and corresponds one-to-one with the first channel; the second connector is connected to the second channel and corresponds one-to-one with the second channel.
9. The heat exchanger as described in claim 8, characterized in that, The aperture of one of the first connectors is larger than the apertures of the other first connectors and all the apertures of the second connectors; Alternatively, the aperture of one of the second connectors may be larger than the apertures of the other second connectors and all the apertures of the first connectors.
10. A water supply device, characterized in that, Includes the heat exchanger as described in any one of claims 1 to 9.