Heat exchange system and dairy product production line

Abstract

The utility model relates to the technical field of heat exchange equipment, and discloses a heat exchange system and a dairy product production line, the heat exchange system comprises a heat exchange assembly, a first pipeline and a circulation pipeline, the heat exchange assembly is provided with an input port, an output port, an input end and an output end, the input port communicates with the output port and is used for circularly introducing a product to be subjected to temperature adjustment, and the input end communicates with the output end; the heat exchanger is used for circularly introducing a heat exchange medium; one end of the first pipeline is communicated with the input end, and the other end of the first pipeline is communicated with a liquid outlet of a heat exchange medium pool; a first valve is arranged on the circulating pipeline, one end of the circulating pipeline is communicated with the first pipeline, and the other end of the circulating pipeline is used for inputting temperature adjusting liquid; the problem that the self-control PID adjustment fluctuation of the heat exchange system is large can be solved or improved.

Description

Technical Field

[0001] The present application relates to the technical field of heat exchange equipment, and in particular to a heat exchange system and a dairy product production line. Background Art

[0002] In the related art, after yogurt, milk, beverages and other liquid dairy products are produced, they usually need to be cooled to a specified temperature before being transported to a storage room for storage. Therefore, the heat exchange system plays a vital role in the cooling process of liquid dairy products.

[0003] In the heat exchange system, ice water is used to cool the circulating medium, and then the circulating medium and liquid dairy products are used to exchange heat to reduce the temperature, or ice water is directly used as the circulating medium to exchange heat with liquid dairy products to reduce the temperature.

[0004] However, no matter which heat exchange method is adopted in the above two schemes, due to the periodic fluctuations in the temperature of the input liquid dairy product and the slow changes in the temperature regulation of the circulating medium in the heat exchange system, it will cause the problem of large fluctuations in the automatic PID (Proportional-Integral-Derivative) regulation of the heat exchange system. Utility Model Content

[0005] The present application provides a heat exchange system and a dairy product production line to solve or improve the problem of large fluctuations in the automatic PID regulation of the heat exchange system.

[0006] On the one hand, the present application provides a heat exchange system, including a heat exchange component, a first pipeline and a circulation pipeline, the heat exchange component is provided with an input port, an output port, an input end and an output end, the input port is connected with the output port, and is used to circulate the product to be temperature adjusted, the input end is connected with the output end, and is used to circulate the heat exchange medium; one end of the first pipeline is connected with the input end, and the other end of the first pipeline is used to be connected with the liquid outlet of the heat exchange medium pool; a first valve is provided on the circulation pipeline, one end of the circulation pipeline is connected with the first pipeline, and the other end of the circulation pipeline is used to input the temperature adjustment liquid.

[0007] Beneficial effect: By setting a circulation pipeline and setting a first valve on the circulation pipeline, the circulation pipeline is used to pass a temperature control medium. Generally speaking, if it is a cooling heat exchange plate, the temperature of the temperature control medium is higher than the temperature of the heat exchange medium output from the heat exchange medium pool; if it is a heating heat exchange plate, the temperature of the temperature control medium is lower than the temperature of the heat exchange medium output from the heat exchange medium pool.

[0008] Taking the cooling heat exchange plate as an example, when it is detected that the temperature of the product coming out of the heat exchange component is too low, the opening of the first valve is controlled to allow the temperature regulating medium in the circulation pipeline to enter the first pipeline and mix with the cooling medium in the first pipeline, thereby increasing the temperature of the cooling medium and timely increasing the temperature of the product coming out of the heat exchange component, thereby avoiding the problem of large fluctuations in the automatic PID adjustment of the heat exchange system.

[0009] Taking the heating heat exchange plate as an example, when it is detected that the temperature of the product coming out of the heat exchange component is too high, the opening of the first valve is controlled to allow the temperature regulating medium in the circulation pipeline to enter the first pipeline and mix with the cooling medium in the first pipeline, thereby reducing the temperature of the cooling medium and timely increasing the temperature of the product coming out of the heat exchange component, thereby avoiding the problem of large fluctuations in the automatic PID adjustment of the heat exchange system.

[0010] In one embodiment, the heat exchange system further includes a second pipeline and a connector, one end of the second pipeline is connected to the output end, the other end of the second pipeline is used to connect to the liquid inlet of the heat exchange medium pool, and the circulation pipeline is used to input one end of the temperature regulating liquid, and is connected to the second pipeline through the connector.

[0011] In an optional embodiment, the heat exchange system also includes a third pipeline, a fourth pipeline, a fifth pipeline, a cleaning pump, a second valve and a third valve, one end of the third pipeline is connected to the input port, and the other end of the third pipeline is used to input the product to be temperature adjusted, one end of the fourth pipeline is connected to the output port, and the other end of the fourth pipeline is used to output the cooled product; the second valve and the third valve are both three-way valves, one end of the fifth pipeline is connected to the third pipeline through the second valve, and the other end of the fifth pipeline is connected to the fourth pipeline through the third valve, and the cleaning pump is arranged in series on the fifth pipeline.

[0012] In an optional embodiment, the heat exchange assembly includes a first heat exchange plate and a second heat exchange plate, the first heat exchange plate and the second heat exchange plate are connected in series, the output port and the input end are arranged on the first heat exchange plate, and the input port and the output end are arranged on the second heat exchange plate.

[0013] In an optional embodiment, the heat exchange system further includes a sixth pipeline, a fourth valve and a fifth valve, the sixth pipeline connecting the product heat exchange channel on the first heat exchange plate with the product heat exchange channel on the second heat exchange plate, the fourth valve is located on the fourth pipeline and between the second heat exchange plate and the third valve, the fifth valve is a three-way valve, the sixth pipeline is connected to the fourth pipeline through the fifth valve, and the fifth valve is located between the fourth valve and the third valve.

[0014] In an optional embodiment, the heat exchange system further includes a siphon tank, a siphon tube, a sixth valve and a seventh valve, the sixth valve being arranged on the second pipeline and located between the connecting head and the heat exchange component, one end of the siphon tube being located in the liquid of the siphon tank, and the other end of the siphon tube being connected to a portion of the second pipeline between the sixth valve and the heat exchange component, and the sixth valve being arranged on the siphon tube.

[0015] In an optional implementation, a buffer tank is provided on the first pipeline.

[0016] In an optional embodiment, the heat exchange system also includes a seventh pipeline, an eighth valve, a ninth valve and a tenth valve, the eighth valve and the ninth valve are respectively located on the first pipeline on both sides of the buffer tank, the part where the circulation pipeline is connected to the first pipeline is the first connection part, the ninth valve is located between the buffer tank and the first connection part, the two ends of the seventh pipeline are respectively connected to the parts of the first pipeline located on both sides of the buffer tank, and the connection parts are respectively the second connection part and the third connection part, the second connection part is located between the first connection part and the heat exchange component, the eighth valve is located between the third connection part and the buffer tank, and the tenth valve is located on the seventh pipeline.

[0017] In an optional implementation, the cleaning pump is a booster pump, the second valve is a cleaning booster valve, and the third valve, the fourth valve and the fifth valve are all flexible switching valves;

[0018] And / or, a temperature sensor is provided on the fourth pipeline;

[0019] And / or, a flow sensor and a pressure sensor are provided on the third pipeline.

[0020] According to an embodiment of the present application, on the other hand, a dairy product production line is provided, comprising a heat exchange system according to any one of the above embodiments.

[0021] Beneficial effects: Because the dairy product production line includes a heat exchange system, it has the same effects as the heat exchange system and will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the related technologies, the drawings required for use in the specific implementation methods or the related technical descriptions will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 This is a schematic diagram of a heat exchange system according to an embodiment of the present application.

[0024] Description of reference numerals:

[0025] 1. Heat exchange component; 2. First pipeline; 3. Circulation pipeline; 4. First valve; 5. Second pipeline; 6. Connector; 7. Third pipeline; 8. Fourth pipeline; 9. Fifth pipeline; 10. Cleaning pump; 11. Second valve; 12. Third valve; 13. Sixth pipeline; 14. Fourth valve; 15. Fifth valve; 16. Siphon tank; 17. Siphon tube; 18. Sixth valve; 19. Seventh valve; 20. Buffer tank; 21. Seventh pipeline; 22. Eighth valve; 23. Ninth valve; 24. Tenth valve; 25. First connection part; 26. Second connection part; 27. Third connection part; 28. Liquid pump; 29. ​​Temperature sensor; 30. Flow sensor; 31. Pressure sensor; 32. Eighth pipeline; 33. Overflow pipe; 34. Drain pipe;

[0026] 101, input port; 102, output port; 103, input end; 104, output end; 105, first heat exchange plate; 106, second heat exchange plate. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of this application.

[0028] In the related art, after liquid dairy products such as yogurt, milk, and beverages are produced, they usually need to be cooled to a specified temperature before being transported to a storage room for storage. Therefore, the heat exchange system plays a vital role in the cooling process of liquid dairy products.

[0029] In the heat exchange system, ice water is used to cool the circulating medium, and then the circulating medium and liquid dairy products are used to exchange heat to reduce the temperature, or ice water is directly used as the circulating medium to exchange heat with liquid dairy products to reduce the temperature.

[0030] However, no matter which heat exchange method is adopted in the above two schemes, due to the periodic fluctuations in the temperature of the input liquid dairy product and the slow changes in the temperature regulation of the circulating medium in the heat exchange system, it will cause large fluctuations in the automatic PID regulation of the heat exchange system.

[0031] Therefore, the present application provides a heat exchange system and a dairy product production line to solve or improve the problem of large fluctuations in the automatic PID adjustment of the heat exchange system.

[0032] Combine the following Figure 1 , describing an embodiment of the present application.

[0033] According to an embodiment of the present application, on the one hand, a heat exchange system is provided, such as Figure 1 As shown, it includes a heat exchange component 1, a first pipeline 2 and a circulation pipeline 3. The heat exchange component 1 is provided with an input port 101, an output port 102, an input end 103 and an output end 104. The input port 101 is connected with the output port 102 for circulating the product to be temperature-adjusted, and the input end 103 is connected with the output end 104 for circulating the heat exchange medium; one end of the first pipeline 2 is connected with the input end 103 by screw connection of an adapter, and the other end of the first pipeline 2 is used to be connected with the liquid outlet of the heat exchange medium pool; a first valve 4 is provided on the circulation pipeline 3, one end of the circulation pipeline 3 is connected with the first pipeline 2, and the other end of the circulation pipeline 3 is used to input the temperature-adjusting liquid.

[0034] It needs to be explained that “the input port 101 is connected with the output port 102” means that a product heat exchange channel for passing the product to be temperature adjusted is arranged inside the heat exchange component 1, and the input port 101 and the output port 102 are connected through the product heat exchange channel; “the input end 103 and the output end 104 are connected” means that a heat exchange medium channel is arranged inside the heat exchange component 1, and the input end 103 and the output end 104 are connected through the heat exchange medium channel.

[0035] It should be noted that the heat exchange medium pool can be formed by directly cooling the heat exchange medium through a refrigeration device to form a low-temperature heat exchange medium; or it can be formed by performing heat exchange on the heat exchange medium through a low-temperature circulation pipeline 3 to form a low-temperature heat exchange medium. Preferably, the heat exchange medium is directly cooled by a refrigeration device to form a low-temperature heat exchange medium.

[0036] It should also be noted that "product to be temperature controlled" refers to a product that needs to be heated or cooled by heat exchange; "heat exchange medium" refers to a medium used to heat exchange with the product to be temperature controlled to heat or cool it; and the temperature control medium in "the other end of the circulation pipeline 3 is used to input the temperature control liquid" is a medium that has a certain temperature difference with the temperature control medium.

[0037] Specifically, the first valve 4 may be a solenoid valve, or other types of valves that can be automatically controlled.

[0038] In this embodiment, if Figure 1As shown, by setting a circulation pipeline 3 and setting a first valve 4 on the circulation pipeline 3, the circulation pipeline 3 is used to pass a temperature control medium. Generally speaking, if it is a cooling heat exchange plate, the temperature of the temperature control medium is higher than the temperature of the heat exchange medium output from the heat exchange medium pool; if it is a heating heat exchange plate, the temperature of the temperature control medium is lower than the temperature of the heat exchange medium output from the heat exchange medium pool.

[0039] Taking the cooling heat exchange plate as an example, when it is detected that the temperature of the product coming out of the heat exchange component 1 is too low, the first valve 4 is controlled to open to allow the temperature regulating medium in the circulation pipeline 3 to enter the first pipeline 2 and mix with the cooling medium in the first pipeline 2, thereby increasing the temperature of the cooling medium and timely increasing the temperature of the product coming out of the heat exchange component 1, thereby avoiding the problem of large fluctuations in the automatic PID adjustment of the heat exchange system.

[0040] Taking the heating heat exchange plate as an example, when it is detected that the temperature of the product coming out of the heat exchange component 1 is too high, the first valve 4 is controlled to open to allow the temperature regulating medium in the circulation pipeline 3 to enter the first pipeline 2 and mix with the cooling medium in the first pipeline 2, thereby reducing the temperature of the cooling medium and timely increasing the temperature of the product coming out of the heat exchange component 1, thereby avoiding the problem of large fluctuations in the automatic PID adjustment of the heat exchange system.

[0041] In one embodiment, Figure 1 As shown, the heat exchange system also includes a second pipeline 5 and a connector 6. One end of the second pipeline 5 is connected to the output end 104 by means of an adapter threaded connection. The other end of the second pipeline 5 is used to connect to the liquid inlet of the heat exchange medium pool. The circulation pipeline 3 is used to input one end of the temperature regulating liquid and is connected to the second pipeline 5 through the connector 6.

[0042] Specifically, the connector 6 may be a connector of a three-way regulating valve, or may be other types of connectors 6 .

[0043] More specifically, a liquid pump 28 is provided on the second pipeline 5 to drive the flow of the heat exchange medium; of course, the liquid pump 28 can also be provided on the first pipeline 2 .

[0044] In this embodiment, if Figure 1 As shown, one end of the circulation pipeline 3 for inputting the temperature-adjusting liquid is connected to the second pipeline 5 through the connector 6, so that the heat exchange medium in the second pipeline 5 that has undergone heat exchange can be used as a temperature-adjusting medium and mixed with the heat exchange medium in the first pipeline 2 to adjust the temperature of the heat exchange medium, thereby eliminating the need to separately set up a temperature-adjusting medium control device, thereby not only reducing the energy consumption of the heat exchange system, but also reducing the equipment cost and simplifying the equipment structure.

[0045] In one example, the connector 6 may be a four-way valve, one of the ports of which is connected to the fourth pipeline 8 through the eighth pipeline 32 to discharge the heat exchange medium in the heat exchange medium circulation loop.

[0046] In one embodiment, Figure 1 As shown, the heat exchange system also includes a third pipeline 7, a fourth pipeline 8, a fifth pipeline 9, a cleaning pump 10, a second valve 11 and a third valve 12. One end of the third pipeline 7 is connected to the input port 101 by means of an adapter threaded connection, and the other end of the third pipeline 7 is used to input the product to be temperature-controlled. One end of the fourth pipeline 8 is connected to the output port 102 by means of an adapter threaded connection, and the other end of the fourth pipeline 8 is used to output the cooled product; the second valve 11 and the third valve 12 are both three-way valves, one end of the fifth pipeline 9 is connected to the third pipeline 7 through the second valve 11, and the other end of the fifth pipeline 9 is connected to the fourth pipeline 8 through the third valve 12, and the cleaning pump 10 is arranged in series on the fifth pipeline 9.

[0047] It should be noted that the second valve 11 and the third valve 12 are both three-way valves, that is, they are valves with three interfaces and can connect any two of the three interfaces; specifically, the second valve 11 and the third valve 12 are both solenoid valves, and can also be other types of automatic control valves. Preferably, the second valve 11 is a cleaning boost valve and the third valve 12 is a flexible switching valve; the cleaning pump 10 is a boost pump.

[0048] Specifically, Figure 1 As shown, the third pipeline 7 is provided with a flow sensor 30 and a pressure sensor 31 for monitoring the pressure and flow of the cleaning liquid during cleaning; the fourth pipeline 8 is provided with a temperature sensor 29 for monitoring whether the temperature of the product after heat exchange meets the standard, so as to feed back to the control center for PID adjustment.

[0049] In the specific use process, such as Figure 1 As shown, the cleaning liquid (such as acid, alkali, hot water, etc.) enters the heat exchange component 1 through the third pipeline 7, and then the second valve 11 and the third valve 12 are controlled to make the fifth pipeline 9 form a cleaning loop with the heat exchange component 1 through the third pipeline 7 and the fourth pipeline 8, and then the cleaning pump 10 is operated to make the cleaning liquid circulate in the cleaning loop, thereby cleaning the heat exchange component 1. After the cleaning is completed, the second valve 11 and the third valve 12 are manipulated to cut off the connection between the fifth pipeline 9 and the heat exchange component 1, and the cleaning liquid in the heat exchange component 1 is discharged through the fourth pipeline 8.

[0050] In this embodiment, if Figure 1As shown, by arranging a cleaning pump 10 on the fifth pipeline 9, both ends of the fifth pipeline 9 are connected to the third pipeline 7 and the fourth pipeline 8 respectively through the second valve 11 and the third valve 12, so that the heat exchange component 1 can be easily cleaned.

[0051] In one embodiment, Figure 1 As shown, the heat exchange assembly 1 includes a first heat exchange plate 105 and a second heat exchange plate 106, the first heat exchange plate 105 and the second heat exchange plate 106 are connected in series through a pipeline, the output port 102 and the input end 103 are arranged on the first heat exchange plate 105, and the input port 101 and the output end 104 are arranged on the second heat exchange plate 106.

[0052] It should be noted that “the first heat exchange plate 105 and the second heat exchange plate 106 are connected in series” specifically means that the product channel in the first heat exchange plate 105 is connected in series with the product heat exchange channel in the second heat exchange plate 106, and the heat exchange medium channel in the first heat exchange plate 105 is connected in series with the heat exchange medium channel in the second heat exchange plate 106.

[0053] In this embodiment, if Figure 1 As shown, the heat exchange component 1 includes two first heat exchange plates 105 and second heat exchange plates 106 connected in series, so that a cleaning loop can be formed through the fifth pipeline 9, the first heat exchange plate 105 and the second heat exchange plate to clean the two heat exchange plates at the same time. Compared with the solution of simultaneously cleaning the two heat exchange plates in parallel, the series cleaning in the present application can ensure the cleaning effect while reducing the cleaning flow rate, thereby reducing energy consumption.

[0054] At the same time, the output port 102 and the input end 103 are arranged on the first heat exchange plate 105, and the input port 101 and the output end 104 are arranged on the second heat exchange plate 106, which can make the flow directions of the product and the heat exchange medium on the first heat exchange plate 105 and the second heat exchange plate opposite, thereby improving the heat exchange effect.

[0055] In one embodiment, Figure 1 As shown, the heat exchange system also includes a sixth pipeline 13, a fourth valve 14 and a fifth valve 15. The sixth pipeline 13 connects the product heat exchange channel on the first heat exchange plate 105 with the product heat exchange channel on the second heat exchange plate 106. The fourth valve 14 is located on the fourth pipeline 8 and between the second heat exchange plate 106 and the third valve 12. The fifth valve 15 is a three-way valve. The sixth pipeline 13 is connected to the fourth pipeline 8 through the fifth valve 15, and the fifth valve 15 is located between the fourth valve 14 and the third valve 12.

[0056] Specifically, the fourth valve 14 is a two-way solenoid valve; the fifth valve 15 is a three-way solenoid valve, preferably, a flexible switching valve.

[0057] In this embodiment, if Figure 1 As shown, by connecting the sixth pipeline 13 connecting the product heat exchange channel on the first heat exchange plate 105 and the product heat exchange channel on the second heat exchange plate 106, the sixth pipeline 13 is connected to the fourth pipeline 8 through the fifth valve 15, and the fifth valve 15 is arranged on the fourth pipeline 8, so as to control the fourth valve 14 and the fifth valve 15, so as to realize the cut-off isolation of the second heat exchange plate 106, that is, the product can be discharged through the fourth valve 14 and the fourth pipeline 8 after passing through the first heat exchange plate 105; the first heat exchange plate 105 and the second heat exchange plate 106 can also perform heat exchange simultaneously to realize different stages of heating or cooling.

[0058] In one embodiment, Figure 1 As shown, the heat exchange system also includes a siphon tank 16, a siphon tube 17, a sixth valve 18 and a seventh valve 19. The sixth valve 18 is arranged on the second pipeline 5 and is located between the connecting head 6 and the heat exchange component 1. One end of the siphon tube 17 is located in the liquid of the siphon tank 16, and the other end of the siphon tube 17 is connected to the part of the second pipeline 5 between the sixth valve 18 and the heat exchange component 1. The sixth valve 18 is arranged on the siphon tube 17.

[0059] Specifically, the siphon tank 16 is a container for storing heat exchange medium and can be of any shape; the sixth valve 18 and the seventh valve 19 are solenoid valves, preferably angle seat valves.

[0060] More specifically, Figure 1 As shown, an overflow pipe 33 is provided at the top of the siphon tank 16 and is connected to the eighth pipeline 32 , and a sewage pipe 34 is provided at the bottom of the siphon tank 16 and is connected to the eighth pipeline 32 , so as to drain the liquid in the siphon tank 16 and facilitate cleaning of the siphon tank 16 .

[0061] In this embodiment, if Figure 1 As shown, by closing the sixth valve 18 and the input end 103 at the same time and opening the seventh valve 19, the siphon tube 17 is connected to the heat exchange medium channel in the heat exchange component 1. As a result, when the cleaning liquid is cleaning the product heat exchange channel in the heat exchange component 1, the heat exchange medium expands and contracts due to the rise and fall of temperature, so that the expanded heat exchange medium enters the siphon pool 16 through the siphon tube 17, or the contracted heat exchange medium forms a negative pressure, sucking liquid from the siphon pool 16, thereby preventing outside air from entering the heat exchange medium channel and reducing the heat exchange effect.

[0062] In one embodiment, Figure 1As shown, a buffer tank 20 is provided on the first pipeline 2. Specifically, the buffer tank 20 can be of any shape. The setting of the buffer tank 20 can store a certain amount of heat exchange medium, and can keep the temperature of the heat exchange medium stable, avoid temperature fluctuations of the heat exchange medium, and thus reduce heat exchange fluctuations of the heat exchange system.

[0063] In one embodiment, Figure 1 As shown, the heat exchange system also includes a seventh pipeline 21, an eighth valve 22, a ninth valve 23 and a tenth valve 24. The eighth valve 22 and the ninth valve 23 are respectively located on the first pipeline 2 on both sides of the buffer tank 20. The portion where the circulation pipeline 3 is connected to the first pipeline 2 is the first connection portion 25. The ninth valve 23 is located between the buffer tank 20 and the first connection portion 25. Both ends of the seventh pipeline 21 are respectively connected to portions of the first pipeline 2 located on both sides of the buffer tank 20, and the connection portions are respectively the second connection portion 26 and the third connection portion 27. The second connection portion 26 is located between the first connection portion 25 and the heat exchange component 1. The eighth valve 22 is located between the third connection portion 27 and the buffer tank 20. The tenth valve 24 is located on the seventh pipeline 21.

[0064] Specifically, the eighth valve 22, the ninth valve 23 and the tenth valve 24 are all solenoid valves, preferably angle seat valves.

[0065] In this embodiment, if Figure 1 As shown, in the production preparation section, because the temperature of the heat exchange medium in the buffer tank 20 does not meet the standard, directly using the heat exchange medium in the buffer tank 20 to adjust the temperature of the heat exchange component will cause the temperature of the heat exchange component 1 to not meet the standard, resulting in unqualified products. The setting of the seventh pipeline 21, by closing the eighth valve 22 and the ninth valve 23 and opening the tenth valve 24, can directly use the external input of qualified heat exchange medium to enter the heat exchange component 1 for temperature adjustment, so that the temperature of the heat exchange component 1 quickly meets the standard and shortens the duration of the production preparation stage.

[0066] According to an embodiment of the present application, on the other hand, a dairy product production line is provided, comprising the heat exchange system in any one of the above embodiments.

[0067] Specifically, the dairy product production line may be a production line for dairy products such as yogurt and pure milk, and may be a production line for heating or cooling a certain dairy product or semi-finished product.

[0068] In this embodiment, because the dairy product production line includes a heat exchange system, it has the same technical effects as the heat exchange system and will not be described in detail here.

[0069] Although the embodiments of the present application are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present application, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A heat exchange system, characterized in that: include: A heat exchange component (1), wherein the heat exchange component (1) is provided with an input port (101), an output port (102), an input end (103) and an output end (104), wherein the input port (101) is in communication with the output port (102) and is used for circulating a product to be temperature-controlled, and the input end (103) is in communication with the output end (104) and is used for circulating a heat exchange medium; A first pipeline (2), one end of the first pipeline (2) being in communication with the input end (103), and the other end of the first pipeline (2) being in communication with a liquid outlet of a heat exchange medium pool; A circulation pipeline (3), wherein a first valve (4) is arranged on the circulation pipeline (3), one end of the circulation pipeline (3) is connected to the first pipeline (2), and the other end of the circulation pipeline (3) is used for inputting a temperature-adjusting liquid.

2. The heat exchange system according to claim 1, characterized in that: It also comprises a second pipeline (5) and a connector (6), one end of the second pipeline (5) being in communication with the output end (104), the other end of the second pipeline (5) being in communication with the liquid inlet of the heat exchange medium tank, and one end of the circulation pipeline (3) being in communication with the second pipeline (5) via the connector (6) for inputting the temperature regulating liquid.

3. The heat exchange system according to claim 1 or 2, characterized in that: The invention also comprises a third pipeline (7), a fourth pipeline (8), a fifth pipeline (9), a cleaning pump (10), a second valve (11) and a third valve (12); one end of the third pipeline (7) is connected to the input port (101), and the other end of the third pipeline (7) is used to input the product to be temperature-controlled; one end of the fourth pipeline (8) is connected to the output port (102), and the other end of the fourth pipeline (8) is used to output the cooled product; the second valve (11) and the third valve (12) are both three-way valves; one end of the fifth pipeline (9) is connected to the third pipeline (7) through the second valve (11), and the other end of the fifth pipeline (9) is connected to the fourth pipeline (8) through the third valve (12); and the cleaning pump (10) is arranged in series on the fifth pipeline (9).

4. The heat exchange system according to claim 3, characterized in that: The heat exchange assembly (1) comprises a first heat exchange plate (105) and a second heat exchange plate (106), wherein the first heat exchange plate (105) and the second heat exchange plate (106) are connected in series, the output port (102) and the input end (103) are arranged on the first heat exchange plate (105), and the input port (101) and the output end (104) are arranged on the second heat exchange plate (106).

5. The heat exchange system according to claim 4, characterized in that: The heat exchanger further comprises a sixth pipeline (13), a fourth valve (14) and a fifth valve (15); the sixth pipeline (13) is connected to the product heat exchange channel on the first heat exchange plate (105) and the product heat exchange channel on the second heat exchange plate (106); the fourth valve (14) is located on the fourth pipeline (8) and between the second heat exchange plate (106) and the third valve (12); the fifth valve (15) is a three-way valve; the sixth pipeline (13) is connected to the fourth pipeline (8) through the fifth valve (15), and the fifth valve (15) is located between the fourth valve (14) and the third valve (12).

6. The heat exchange system according to claim 2, characterized in that: It also comprises a siphon pool (16), a siphon tube (17), a sixth valve (18) and a seventh valve (19); the sixth valve (18) is arranged on the second pipeline (5) and is located at a position between the connecting head (6) and the heat exchange component (1); one end of the siphon tube (17) is located in the liquid of the siphon pool (16); the other end of the siphon tube (17) is connected to a position on the second pipeline (5) between the sixth valve (18) and the heat exchange component (1); and the sixth valve (18) is arranged on the siphon tube (17).

7. The heat exchange system according to claim 1 or 2, characterized in that: A buffer tank (20) is provided on the first pipeline (2).

8. The heat exchange system according to claim 7, characterized in that: The heat exchanger (1) further comprises a seventh pipeline (21), an eighth valve (22), a ninth valve (23) and a tenth valve (24); the eighth valve (22) and the ninth valve (23) are respectively located on the first pipeline (2) on both sides of the buffer tank (20); the portion where the circulation pipeline (3) is connected to the first pipeline (2) is a first connecting portion (25); the ninth valve (23) is located between the buffer tank (20) and the first connecting portion (25); both ends of the seventh pipeline (21) are respectively connected to portions of the first pipeline (2) located on both sides of the buffer tank (20), and the connecting portions are respectively a second connecting portion (26) and a third connecting portion (27); the second connecting portion (26) is located between the first connecting portion (25) and the heat exchange assembly (1); the eighth valve (22) is located between the third connecting portion (27) and the buffer tank (20); and the tenth valve (24) is located on the seventh pipeline (21).

9. The heat exchange system according to claim 5, characterized in that: The cleaning pump (10) is a booster pump, the second valve (11) is a cleaning booster valve, and the third valve (12), the fourth valve (14) and the fifth valve (15) are all flexible switching valves; And / or, a temperature sensor (29) is provided on the fourth pipeline (8); And / or, a flow sensor (30) and a pressure sensor (31) are provided on the third pipeline (7).

10. A dairy product production line, characterized in that: include: A heat exchange system as claimed in any one of claims 1 to 9.

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