Refrigerating system for beer production process

Abstract

The utility model provides a refrigerating system for a beer production process. The refrigerating system comprises a base, a refrigerating device and a refrigerating device, the refrigeration assembly is arranged on the base and comprises a plurality of heat exchangers, and the heat exchangers are used for different cooling processes; the cooling circulation system is located on the base and used for providing a refrigerant for the refrigeration assembly, the cooling circulation system comprises a circulation pipeline, a compression assembly and a condenser, the compression assembly and the condenser are both arranged on the circulation pipeline, the cooling circulation system is provided with a cooling outlet and a cooling inlet, and the cooling outlet and the cooling inlet are communicated with the circulation pipeline; and the heat exchangers are respectively communicated with the cooling outlet and the cooling inlet. According to the technical scheme provided by the utility model, the problems of large occupied area and complex operation process caused by scattered layout of the refrigeration components in the prior art can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling, in particular to a refrigeration system used in a beer production process. Background Art

[0002] At present, the production process of beer is a complex biochemical process, and temperature control is particularly important in the different processes of beer production. In particular, refrigeration not only helps to control the fermentation temperature, ensure the activity and fermentation efficiency of yeast, but also helps to stabilize the quality and flavor of beer.

[0003] In the prior art, refrigeration components for different processes of beer making are arranged relatively dispersedly in the refrigeration room, which requires complex piping and occupies a large area. At the same time, different cooling components need to be controlled separately, which makes it difficult for users to operate. Utility Model Content

[0004] The utility model provides a refrigeration system for a beer production process, so as to solve the problem in the prior art that the layout of refrigeration components is dispersed, resulting in a large floor space and complicated operation process.

[0005] The utility model provides a refrigeration system for a beer production process, the refrigeration system comprising: a base; a refrigeration component, which is arranged on the base, the refrigeration component comprising a plurality of heat exchangers, the heat exchangers being used for different cooling processes; a cooling circulation system, which is located on the base, the cooling circulation system being used to provide a refrigerant for the refrigeration component, the cooling circulation system comprising a circulation pipeline, a compression component and a condenser, the compression component and the condenser being both arranged on the circulation pipeline, the cooling circulation system having a cooling outlet and a cooling inlet, the cooling outlet and the cooling inlet being connected to the circulation pipeline, and the plurality of heat exchangers being respectively connected to the cooling outlet and the cooling inlet.

[0006] Furthermore, the cooling circulation system includes a gas-liquid separator, which is arranged on the circulation pipeline and downstream of the condenser. The gas-liquid separator has multiple cooling outlets and multiple cooling inlets, and the heat exchanger is arranged in a one-to-one correspondence with the cooling outlets and cooling inlets.

[0007] Furthermore, the cooling circulation system also includes a regulating valve and a liquid level sensor assembly. The regulating valve is arranged on the circulation pipeline and upstream of the gas-liquid separator. The liquid level sensor assembly is arranged on the gas-liquid separator, and the liquid level sensor assembly is electrically connected to the regulating valve.

[0008] Furthermore, the liquid level sensing assembly includes a liquid level detector, a liquid level display and a liquid level monitor. The liquid level detector is electrically connected to the liquid level display and the liquid level detector respectively. The liquid level monitor is used to transmit the data detected by the liquid level detector to the regulating valve.

[0009] Furthermore, the compression component includes a fixed-frequency compressor and a variable-frequency compressor, and the fixed-frequency compressor and the variable-frequency compressor are arranged in parallel on the circulation pipeline.

[0010] Furthermore, the cooling circulation system also includes an oil separator, which is arranged on the circulation pipeline and located between the compression component and the condenser.

[0011] Furthermore, the refrigeration system also includes an oil cooler, the oil separator is connected to the oil cooler, the oil cooler is connected to the oil inlet of the compression assembly, and the oil cooler can cool the oil separated from the oil separator.

[0012] Furthermore, the cooling cycle system also includes an economizer, which is located between the condenser and the gas-liquid separator.

[0013] Furthermore, the heat exchanger is a plate heat exchanger.

[0014] Furthermore, the refrigeration component also includes a temperature detector, which is arranged at the inlet and / or outlet of the heat exchanger.

[0015] By applying the technical solution of the utility model, multiple heat exchangers are integrated on the same refrigeration component, and different media in the same working condition can be cooled simultaneously through one refrigeration component, so that corresponding cooling media can be provided for cooling in different processes of beer making at the same time, thereby improving refrigeration efficiency and production efficiency. At the same time, the compression component and condenser of the cooling circulation system can process the refrigerant, and the cooling outlet can provide refrigerant to the refrigeration component, and then the refrigerant is transported through the circulation pipeline to form a recycling utilization, saving resources and avoiding the waste of refrigerant. Moreover, the refrigeration component and the cooling circulation system are integrated on the same skid base, so that the components can be arranged more centrally in the refrigeration room and the arrangement of pipelines can be reduced. Such a setting not only reduces the waste of refrigerant during transportation, but also reduces the overall floor space, and can also realize the control of multiple heat exchangers at the same time, simplifying the user's operating process and realizing the skid design of the refrigeration system unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0017] Figure 1 The structure diagram of the refrigeration system provided by the utility model is shown;

[0018] Figure 2 The schematic diagram of the structure of the refrigeration assembly provided by the utility model is shown.

[0019] The above drawings include the following reference numerals:

[0020] 10. Heat exchanger; 11. Inlet; 12. Outlet;

[0021] 20. Circulation pipeline;

[0022] 30. Compression assembly;

[0023] 31. Fixed frequency compressor; 32. Variable frequency compressor;

[0024] 40. Condenser;

[0025] 50. Gas-liquid separator;

[0026] 51. Cooling outlet; 52. Cooling inlet;

[0027] 53. Drainage port;

[0028] 60. Control valve; 70. Liquid level sensor assembly;

[0029] 71. Liquid level detector;

[0030] 72. Liquid level display; 73. Liquid level monitor;

[0031] 80. Oil separator;

[0032] 90. Oil cooler;

[0033] 100. Economic cooler;

[0034] 200. Thermosyphon monitoring high pressure liquid storage tank. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0036] like Figure 1 and Figure 2As shown, the embodiment of the utility model provides a refrigeration system for beer production process, and the refrigeration system includes: a base, a refrigeration component and a cooling circulation system. Among them, the refrigeration component is arranged on the base, and the refrigeration component includes a plurality of heat exchangers 10, and the heat exchangers 10 are used for different cooling processes. The cooling circulation system is located on the base, and the cooling circulation system is used to provide refrigerant for the refrigeration component. The cooling circulation system includes a circulation pipeline 20, a compression component 30 and a condenser 40, and the compression component 30 and the condenser 40 are both arranged on the circulation pipeline 20. The compression component 30 can compress the refrigerant into gas to enter the subsequent cooling circulation process. The condenser 40 can condense the gas into liquid. The cooling circulation system has a cooling outlet 51 and a cooling inlet 52, and the cooling outlet 51 and the cooling inlet 52 are connected to the circulation pipeline 20, and the plurality of heat exchangers 10 are respectively connected to the cooling outlet 51 and the cooling inlet 52. Among them, the refrigerant in this embodiment is set to ammonia, and in other embodiments, the refrigerant can also be set to a refrigerant such as Freon or other hydrocarbons.

[0037] By applying the technical solution of the utility model, multiple heat exchangers 10 are integrated on the same refrigeration component, and different media under the same working condition can be cooled simultaneously by one refrigeration component, so that corresponding cooling media can be provided for cooling in different processes of beer making at the same time, thereby improving refrigeration efficiency and production efficiency. At the same time, the compression component 30 and the condenser 40 of the cooling circulation system can process the refrigerant, and the cooling outlet 51 can provide the refrigerant for the refrigeration component, and then the refrigerant is transported through the circulation pipeline 20 to form a recycling, saving resources and avoiding the waste of refrigerant. Moreover, the refrigeration component and the cooling circulation system are integrated on the same skid base to form a skid unit, so that the components can be arranged more concentratedly in the refrigeration room and the arrangement of the pipelines can be reduced. Such a setting not only reduces the waste of refrigerant during transportation, but also reduces the overall floor space, and can also realize the control of multiple heat exchangers 10 at the same time, simplifying the user's operation process and realizing the skid design of the refrigeration system unit.

[0038] In this embodiment, the specific structure of the heat exchanger 10 is not limited, and it can be set as a plate heat exchanger, a shell and tube heat exchanger, or a fin heat exchanger.

[0039] In this solution, two heat exchangers 10 are provided, one of which is a saccharification ice water heat exchanger for cooling water, and the cooled ice water is used to cool wort. The other heat exchanger 10 is a deoxygenated water ice water heat exchanger for cooling deoxygenated water, and the cooled deoxygenated water is used to dilute beer. In other embodiments of the present application, the heat exchanger 10 can also be provided as an alcohol ice water heat exchanger, and the cooled alcohol is used to cool the fermentation tank.

[0040] In the present application, the condenser 40 is an evaporative condenser, which uses the heat absorbed when water evaporates to condense the gaseous refrigerant, consumes less water, saves water resources, and reduces production costs. In other embodiments, the condenser 40 can also be set as a water-cooled condenser, a spray condenser, or a spiral plate condenser.

[0041] like Figure 1 As shown, the cooling circulation system includes a gas-liquid separator 50, which is arranged on the circulation pipeline 20 and is located downstream of the condenser 40. With such an arrangement, the gas-liquid separator 50 can separate the gas and liquid in the refrigerant flowing out of the condenser 40, ensuring that only liquid refrigerant or a gas-liquid mixture enters the heat exchanger 10, and preventing gas from entering the heat exchanger 10 and affecting the heat exchange efficiency. The gas-liquid separator 50 can also reduce the amount of refrigerant that the heat exchanger needs to handle by separating the gas, thereby reducing the workload of the heat exchanger 10. The gas-liquid separator 50 has a plurality of cooling outlets 51 and a plurality of cooling inlets 52, and the heat exchanger 10 is arranged one-to-one with the cooling outlets 51 and the cooling inlets 52. In this way, refrigerant can be provided to different heat exchangers 10 through different cooling outlets 51 to cool the fluid in the heat exchanger 10, and multiple heat exchangers 10 can work simultaneously, or a single heat exchanger 10 or one of the heat exchangers 10 can work. While ensuring the heat exchange efficiency of the heat exchanger 10, the cooling flexibility of the cooling circulation system is improved.

[0042] In this embodiment, two heat exchangers 10 are provided, so two cooling inlets 52 and two cooling outlets 51 on the gas-liquid separator 50 are also provided accordingly.

[0043] Among them, a drain port 53 is also provided on the gas-liquid separator 50. The refrigerant flows from the cooling outlet 51 to the heat exchanger 10. After releasing heat from the heat exchanger 10, it enters the gas-liquid separator 50 from the cooling inlet 52, and then flows into the circulation pipeline 20 through the drain port 53, and finally returns to the compression component 30 to complete the recycling of the refrigerant.

[0044] Specifically, the gas-liquid separator 50 also includes other refrigeration system auxiliary equipment, such as ammonia separation plate replacement skids, barrel pump skids and other components, which are all integrated into the same base in the present application to realize the skid design of the unit. It is easier to centrally modularize and unitize automatic control than traditional refrigeration room scattered system auxiliary equipment, which makes user operation simpler and more convenient.

[0045] like Figure 1 and Figure 2As shown, the cooling circulation system further includes a regulating valve 60 and a liquid level sensor assembly 70 to form a liquid supply valve group. The regulating valve 60 is arranged on the circulation pipeline 20 and is located upstream of the gas-liquid separator 50. The liquid level sensor assembly 70 is arranged on the gas-liquid separator 50, and the liquid level sensor assembly 70 is electrically connected to the regulating valve 60. Through the above arrangement, the regulating valve 60 can control the amount of refrigerant entering the gas-liquid separator 50, and the liquid level sensor assembly 70 can detect the amount of refrigerant in the gas-liquid separator 50. The regulating valve 60 cooperates with the liquid level sensor, so that the flow rate of the refrigerant can be controlled through the regulating valve 60 according to the liquid level of the refrigerant in the gas-liquid separator 50, so that the gas-liquid separator 50 is always kept at a suitable liquid level, which can ensure the stable operation of the heat exchanger 10 with the minimum refrigerant filling amount, and improve the continuity of the refrigerant supply to the heat exchanger 10.

[0046] like Figure 2 As shown, the liquid level sensor assembly 70 includes a liquid level detector 71, a liquid level display 72 and a liquid level monitor 73. The liquid level detector 71 is electrically connected to the liquid level display 72 and the liquid level detector 71 respectively. The liquid level monitor 73 is used to transmit the data detected by the liquid level detector 71 to the regulating valve 60. With the above design, the liquid level detector 71 can detect the liquid level of the refrigerant in the gas-liquid separator 50 in real time, and then transmit the liquid level information to the liquid level display 72 and the liquid level monitor 73. The operator can always know the liquid level in the gas-liquid separator 50 through the liquid level display 72. The liquid level monitor 73 can perform data analysis on the received liquid level information and adjust the opening of the regulating valve 60 to control the circulation of the refrigerant. In this way, the precise control of the refrigerant liquid level in the gas-liquid separator 50 is achieved, so that the filling amount of the refrigerant is greatly reduced, with a maximum reduction of more than 60%.

[0047] like Figure 1 As shown, further, the compression assembly 30 includes a fixed frequency compressor 31 and a variable frequency compressor 32, and the fixed frequency compressor 31 and the variable frequency compressor 32 are arranged in parallel on the circulation pipeline 20. In the present application, a multi-head parallel connection is adopted, and the unit refrigeration capacity is configured after balancing different loads in a year. When one of the heat exchangers 10 is operated alone, the variable frequency compressor 32 unit matches the load operation. When the two heat exchangers 10 are operated at the same time, the fixed frequency compressor 31 and the variable frequency compressor 32 heads are operated at the same time, and according to the fluctuation of the cooling load, the fixed frequency compressor 31 unit is preferentially guaranteed to operate at 100% load, and then the volume ratio of the variable frequency compressor 32 unit itself is adjusted (system automatic matching) to ensure that the unit operates in the highest efficiency range, and the refrigeration power consumption is reduced by more than 10% compared with the original single head single plate design.

[0048] Taking into account the demand for increased ice water in the later period, the technical solution of this application will reserve a position for one machine head. When the demand for cooling capacity increases in the later period, the whole machine can be expanded to three compressors in parallel, and the cooling capacity of the unit can be matched with the original unit again to achieve three heads with different cooling capacities. The three heads can operate in multiple combinations to meet the load fluctuation of 20-100% without reducing the refrigeration operation efficiency. At the same time, there is no need to add additional external pipelines of the skid unit, and the construction period is short.

[0049] Specifically, the cooling circulation system further includes an oil separator 80, which is disposed on the circulation pipeline 20 and is located between the compression assembly 30 and the condenser 40. The compression assembly 30 will bring lubricating oil into the circulation pipeline 20 during operation, and the oil separator 80 can effectively separate the lubricating oil from the high-pressure gaseous refrigerant to prevent the lubricating oil from entering the condenser 40. At the same time, the separated lubricating oil can be sent back to the compression assembly 30 to ensure that the compression assembly 30 has sufficient lubricating oil for lubrication and reduce wear.

[0050] like Figure 1 As shown, the refrigeration system further includes an oil cooler 90, the oil separator 80 is in communication with the oil cooler 90, and the oil cooler is in communication with the oil inlet of the compression assembly 30, and the oil cooler 90 can cool the oil separated from the oil separator 80. The oil cooler 90 is located between the oil separator 80 and the compression assembly 30, so that the oil cooler 90 can reduce the temperature of the lubricating oil separated by the oil separator 80, so as to reduce the viscosity drop and oxidation of the lubricating oil, thereby maintaining the appropriate viscosity of the lubricating oil, thereby improving the lubricating performance of the lubricating oil in the compression assembly 30.

[0051] The cooling cycle system further includes an economizer 100, which is located between the condenser 40 and the gas-liquid separator 50. Through the above arrangement, the economizer 100 can further cool the liquid refrigerant, so that the temperature of the refrigerant is lower than the temperature flowing out of the outlet of the condenser 40, thereby improving the performance coefficient of the entire refrigeration system. At the same time, the economizer 100 can be adjusted to meet different refrigeration requirements, thereby improving the refrigeration flexibility of the cooling system.

[0052] Specifically, a thermosyphon high-pressure liquid receiver 200 is provided between the condenser 40 and the economizer 100 for storing refrigerant.

[0053] In this solution, the heat exchanger 10 is a plate heat exchanger. Compared with other types of heat exchangers, the plate heat exchanger has the same cooling effect and occupies a smaller area, which can further reduce the space volume of the refrigeration system. In addition, the heat exchanger 10 in this application has a single-side inlet and outlet pipe, which is convenient for later expansion and maintenance to meet greater cooling needs.

[0054] like Figure 2As shown, the refrigeration assembly also includes a temperature detector, which is arranged at the inlet 11 or outlet 12 of the heat exchanger 10. The inlet 11 is used to pass the medium or fluid to be cooled, and the cooled fluid flows out of the heat exchanger 10 from the outlet 12. In this way, the heat exchange effect of the heat exchanger 10 on different fluids can be monitored to ensure the cooling effect of the refrigeration system. In some embodiments, temperature detectors can also be arranged at both the inlet 11 and the outlet 12.

[0055] The technical solution provided by this application has the following advantages:

[0056] 1. Integrating multiple heat exchangers on the same liquid supply valve group can achieve cooling of different media under the same working conditions, improving the refrigeration efficiency of the beer making process;

[0057] 2. The fixed-frequency compressor and the variable-frequency compressor are integrated in parallel, which reduces power consumption and pipeline complexity while meeting operating efficiency;

[0058] 3. The liquid supply valve group is formed by the regulating valve and the liquid level sensor component to accurately control the refrigerant liquid level and supply amount, ensure the continuous supply of refrigerant and avoid the waste of refrigerant;

[0059] 4. Integrate the refrigeration system on the same base to form a skid module, which not only reduces the overall space volume, but also makes user operation simpler and more convenient.

[0060] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0061] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the utility model. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0062] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0063] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0064] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0065] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A refrigeration system for a beer production process, characterized in that: The refrigeration system comprises: Base; A refrigeration component is arranged on the base, the refrigeration component comprises a plurality of heat exchangers (10), and the heat exchangers (10) are used for different cooling processes; A cooling circulation system is located on the base, and the cooling circulation system is used to provide refrigerant for the refrigeration component. The cooling circulation system includes a circulation pipeline (20), a compression component (30) and a condenser (40). The compression component (30) and the condenser (40) are both arranged on the circulation pipeline (20). The cooling circulation system has a cooling outlet (51) and a cooling inlet (52). The cooling outlet (51) and the cooling inlet (52) are connected to the circulation pipeline (20), and the plurality of heat exchangers (10) are respectively connected to the cooling outlet (51) and the cooling inlet (52).

2. The refrigeration system according to claim 1, characterized in that: The cooling circulation system comprises a gas-liquid separator (50), which is arranged on the circulation pipeline (20) and is located downstream of the condenser (40). The gas-liquid separator (50) has a plurality of cooling outlets (51) and a plurality of cooling inlets (52), and the heat exchanger (10) is arranged in a one-to-one correspondence with the cooling outlets (51) and the cooling inlets (52).

3. The refrigeration system according to claim 2, characterized in that: The cooling circulation system further comprises a regulating valve (60) and a liquid level sensor assembly (70); the regulating valve (60) is arranged on the circulation pipeline (20) and is located upstream of the gas-liquid separator (50); the liquid level sensor assembly (70) is arranged on the gas-liquid separator (50); and the liquid level sensor assembly (70) is electrically connected to the regulating valve (60).

4. The refrigeration system according to claim 3, characterized in that: The liquid level sensing assembly (70) comprises a liquid level detector (71), a liquid level display (72) and a liquid level monitor (73); the liquid level detector (71) is electrically connected to the liquid level display (72) and the liquid level detector (71) respectively; and the liquid level monitor (73) is used to transmit data detected by the liquid level detector (71) to the regulating valve (60).

5. The refrigeration system according to claim 3, characterized in that: The compression assembly (30) comprises a fixed-frequency compressor (31) and a variable-frequency compressor (32), and the fixed-frequency compressor (31) and the variable-frequency compressor (32) are arranged in parallel on the circulation pipeline (20).

6. The refrigeration system according to claim 5, characterized in that: The cooling circulation system further comprises an oil separator (80), wherein the oil separator (80) is arranged on the circulation pipeline (20), and the oil separator (80) is located between the compression assembly (30) and the condenser (40).

7. The refrigeration system according to claim 6, characterized in that: The refrigeration system further comprises an oil cooler (90), the oil separator (80) being in communication with the oil cooler (90), the oil cooler (90) being in communication with an oil inlet of the compression assembly (30), and the oil cooler (90) being capable of cooling the oil separated from the oil separator (80).

8. The refrigeration system according to claim 2, characterized in that: The cooling cycle system further comprises an economizer (100), wherein the economizer (100) is located between the condenser (40) and the gas-liquid separator (50).

9. The refrigeration system according to claim 1, characterized in that: The heat exchanger (10) is a plate heat exchanger.

10. The refrigeration system according to claim 1, characterized in that: The refrigeration component further comprises a temperature detector, which is arranged at the inlet (11) and / or outlet (12) of the heat exchanger (10).

Images