Roll-packing unit refrigerating system
By adding centrifugal and air-cooled heat pump refrigeration units in parallel, and combining them with control valves and modules, the problem of efficient refrigeration during high-speed operation of cigarette rolling machines was solved, realizing a refrigeration system for cigarette rolling machines that is both highly efficient and energy-saving.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI CHINA TOBACCO INDUSTRY CO LTD
- Filing Date
- 2025-04-25
- Publication Date
- 2026-05-12
AI Technical Summary
The existing refrigeration system of cigarette machines is unable to effectively cope with the high heat dissipation demand during high-speed operation, resulting in poor refrigeration performance.
By adding centrifugal chiller units and air-cooled heat pump chiller units in parallel, and combining the main pipelines of the roll-up chiller unit, the power center chiller unit and the roll-up chiller unit, multiple refrigeration methods can be connected in parallel. Combined with control valves and control modules, the refrigeration mode can be adjusted according to demand.
It improves the cooling effect of the packaging unit, increases cooling efficiency, reduces energy consumption, adapts to the cooling needs of different scenarios, and reduces industrial costs.
Smart Images
Figure CN224230449U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of packaging machine technology, and in particular to a packaging machine refrigeration system. Background Technology
[0002] As one of the core pieces of equipment in the modern tobacco industry, the high-speed cigarette rolling machine's efficient and precise operation is crucial for ensuring the quality and quantity of cigarette products. With the high-speed operation of the cigarette rolling machine, the mechanical transmission parts generate a large amount of heat, requiring timely cooling. Therefore, improving the cooling effect of the rolling and packaging unit is an ongoing research topic. Utility Model Content
[0003] This utility model provides a refrigeration system for a roll wrapping machine, which improves the refrigeration effect of the roll wrapping machine by adding a centrifugal refrigeration unit in parallel.
[0004] In a first aspect, this utility model provides a refrigeration system for a wrapping machine, including a wrapping refrigeration unit, a power center refrigeration unit, a wrapping machine, a main pipeline for the wrapping machine, and control valves;
[0005] The roll-type refrigeration unit includes at least one roll-type refrigeration unit, which includes a cold water outlet branch pipe and a hot water inlet branch pipe; the roll-type refrigeration unit includes an air-cooled heat pump chiller unit.
[0006] The power center refrigeration unit includes a cooling pipe and a heat exchange pipe, and the power center refrigeration unit includes a centrifugal refrigeration unit;
[0007] The wrapping machine unit includes an inlet pipe and an outlet pipe;
[0008] The main piping of the wrapping machine unit includes a cold pipe and a heat pipe. The cold pipe includes a first cold water branch pipe, a second cold water branch pipe, and a third cold water branch pipe, which are connected by a tee. The cold water outlet branch pipe is connected to the first cold water branch pipe, the heat exchange pipe is connected to the second cold water branch pipe, and the inlet pipe is connected to the third cold water branch pipe. The heat pipe includes a first hot water branch pipe, a second hot water branch pipe, and a third hot water branch pipe, which are connected by a tee. The hot water inlet branch pipe is connected to the first hot water branch pipe, the heat exchange pipe is connected to the second hot water branch pipe, and the outlet pipe is connected to the third hot water branch pipe.
[0009] The control valves include a first control valve and a second control valve, wherein the first control valve is located in the first cold water branch pipe and the second control valve is located in the first hot water branch pipe.
[0010] Optionally, the refrigeration system of the rolling and packaging unit further includes an air conditioning refrigeration unit, which includes an air conditioning refrigeration unit, and the air conditioning refrigeration unit includes an air conditioning chiller cold pipe and an air conditioning chiller heat pipe;
[0011] The air conditioner's chiller pipe is connected to the first chilled water branch pipe, and the air conditioner's heat pipe is connected to the first hot water branch pipe.
[0012] Optionally, the control valve may further include a third control valve, a fourth control valve, a fifth control valve, and a sixth control valve;
[0013] The third control valve is located on the cold water outlet branch pipe, the fourth control valve is located on the hot water inlet branch pipe, the fifth control valve is located on the air conditioner chiller cold pipe, and the sixth control valve is located on the air conditioner chiller hot pipe.
[0014] Optionally, the roll-wrapping refrigeration unit further includes a first flexible connection structure, a second flexible connection structure, a first shut-off valve, a second shut-off valve, and a first check valve;
[0015] The first flexible connection structure, the first check valve, and the first shut-off valve are located on the cold water outlet branch pipe, and the first shut-off valve is located on the side of the first check valve closer to the first cold water branch pipe, and the first check valve is located on the side of the first flexible connection structure closer to the first cold water branch pipe; the second flexible connection structure and the second shut-off valve are located on the hot water inlet branch pipe, and the second shut-off valve is located on the side of the second flexible connection structure closer to the first hot water branch pipe.
[0016] The air conditioning refrigeration unit also includes a third flexible connection structure, a fourth flexible connection structure, a third shut-off valve, a fourth shut-off valve, and a second check valve.
[0017] The third flexible connection structure, the second check valve, and the third shut-off valve are located on the cold pipe of the air conditioner chiller, and the third shut-off valve is located on the side of the second check valve near the first cold water branch pipe, and the second check valve is located on the side of the third flexible connection structure near the first cold water branch pipe; the fourth flexible connection structure and the fourth shut-off valve are located on the heat pipe of the air conditioner chiller, and the fourth shut-off valve is located on the side of the fourth flexible connection structure near the first hot water branch pipe.
[0018] Optionally, the power center refrigeration unit includes a power center refrigeration unit and a heat exchanger; the power center refrigeration unit includes a power center chiller cold pipe and a power center chiller heat pipe, and the heat exchanger includes a primary cooling end, a primary heat exchange end, a secondary cooling end, and a secondary heat exchange end;
[0019] The cooling tube includes a primary cooling tube and a secondary cooling tube, and the heat exchange tube includes a primary heat exchange tube and a secondary heat exchange tube;
[0020] The first end of the primary cooling pipe is connected to the cooling pipe of the power center chiller, and the second end of the primary cooling pipe is connected to the primary cooling end. The first end of the primary heat exchange pipe is connected to the heat pipe of the power center chiller, and the second end of the primary heat exchange pipe is connected to the primary heat exchange end. The first end of the secondary cooling pipe is connected to the secondary cooling end, and the second end of the secondary cooling pipe is connected to the second cold water branch pipe. The first end of the secondary heat exchange pipe is connected to the secondary heat exchange end, and the second end of the secondary heat exchange pipe is connected to the second hot water branch pipe.
[0021] Optionally, the control valve may further include a seventh control valve, an eighth control valve, a ninth control valve, and a tenth control valve;
[0022] The seventh control valve is located at the primary cooling end, the eighth control valve is located at the primary heat exchange end, the ninth control valve is located at the secondary cooling end, and the tenth control valve is located at the secondary heat exchange end.
[0023] Optionally, the heat exchanger includes a plate heat exchanger.
[0024] Optionally, the control valve further includes a first exhaust valve, a second exhaust valve, a third exhaust valve, and a fourth exhaust valve;
[0025] The first exhaust valve is located on the primary cooling tube, the second exhaust valve is located on the primary heat exchange tube, the third exhaust valve is located on the secondary cooling tube, and the fourth exhaust valve is located on the secondary heat exchange tube.
[0026] Optionally, the control valve further includes a fifth exhaust valve and a sixth exhaust valve;
[0027] The fifth vent valve is located in the inlet pipe, and the sixth vent valve is located in the outlet pipe.
[0028] Optionally, the roll-to-roll refrigeration unit includes three roll-to-roll refrigeration units.
[0029] This utility model embodiment provides a refrigeration system for a wrapping machine unit. The refrigeration system includes a wrapping refrigeration unit, a power center refrigeration unit, a wrapping machine unit, and a main wrapping machine pipeline. The wrapping refrigeration unit includes at least one wrapping refrigeration unit. Cold water supplied by the wrapping refrigeration unit is transferred to the wrapping machine unit for refrigeration. The hot water produced by the wrapping machine unit after refrigeration is returned to the wrapping refrigeration unit, where a wrapping command unit further cools the hot water. Simultaneously, cold water supplied by the power center refrigeration unit can also be transferred to the wrapping machine unit for refrigeration. The hot water produced by the wrapping machine unit after refrigeration is returned to the power center refrigeration unit. The central refrigeration unit cools and lowers the temperature of hot water; further, the roll-to-roll refrigeration unit includes a roll-to-roll refrigeration unit, which includes an air-cooled heat pump chiller; the power center refrigeration unit includes a centrifugal refrigeration unit; in this embodiment of the invention, refrigeration units with different operating modes are connected in parallel to the inlet and outlet pipes of the roll-to-roll unit, which can effectively improve the refrigeration effect of the roll-to-roll unit; further, the roll-to-roll refrigeration unit also includes a control valve, which is located on the cold and hot water transmission path of the roll-to-roll refrigeration unit and the roll-to-roll unit, and can control the valve according to the cooling requirements of the roll-to-roll unit, which can also reduce energy consumption.
[0030] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of this utility model, nor is it intended to limit the scope of this utility model. Other features of this utility model will become readily apparent from the following description. Attached Figure Description
[0031] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments 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 these drawings without creative effort.
[0032] Figure 1 This is a schematic diagram of the resulting structure of a refrigeration system for a roll packaging unit provided in an embodiment of this utility model;
[0033] Figure 2 This is a schematic diagram of the structure of a roll-wrapped refrigeration unit provided in an embodiment of this utility model;
[0034] Figure 3 This is a schematic diagram of the structure of an air conditioning refrigeration unit provided in an embodiment of this utility model;
[0035] Figure 4 This is a schematic diagram of the structure of a power center refrigeration unit provided in an embodiment of this utility model;
[0036] Figure 5 yes Figure 1 An enlarged schematic diagram of region A in the middle. Detailed Implementation
[0037] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention 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 invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.
[0038] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the utility model described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.
[0039] Figure 1 This is a schematic diagram of the resulting structure of a refrigeration system for a wrapping machine according to an embodiment of the present invention. Figure 2 This is a schematic diagram of the structure of a roll-wrapped refrigeration unit provided in an embodiment of this utility model, for reference. Figure 1 and Figure 2As shown, this utility model embodiment provides a refrigeration system 10 for a wrapping machine unit. The refrigeration system 10 includes a wrapping refrigeration unit 100, a power center refrigeration unit 200, a wrapping machine unit 300, a wrapping machine main pipeline 400, and control valves 500. The wrapping refrigeration unit 100 includes at least one wrapping refrigeration unit 110, which includes a cold water outlet branch pipe 110a and a hot water inlet branch pipe 110b. The wrapping refrigeration unit 110 includes... Includes air-cooled heat pump chillers; power center refrigeration unit 200 includes a cooling pipe 200a and a heat exchange pipe 200b, and the power center refrigeration unit 200 includes a centrifugal refrigeration unit; wrapping unit 300 includes an inlet pipe 300a and an outlet pipe 300b; wrapping unit main pipe 400 includes wrapping unit cold pipe 410 and wrapping unit heat pipe 420, and the wrapping unit cold pipe 410 includes a first cold water branch pipe 411, a second cold water branch pipe 412 and a third cold water branch pipe 413. Pipe 413, the first cold water branch pipe 411, the second cold water branch pipe 412 and the third cold water branch pipe 413 are connected by a tee, the cold water outlet branch pipe 110a is connected to the first cold water branch pipe 411, the cooling pipe 200a is connected to the second cold water branch pipe 412, and the inlet pipe 300a is connected to the third cold water branch pipe 413; the coiling unit heat pipe 420 includes a first hot water branch pipe 421, a second hot water branch pipe 422 and a third hot water branch pipe 423, the first hot water branch pipe 421, the second hot water branch pipe 422, the second hot water branch pipe 423, the first hot water branch pipe 421, the second hot water branch pipe 422, the third hot water branch pipe 423, the first hot water branch pipe 421, the second hot water branch pipe 422, the third hot water branch pipe 423, the third ... Hot water branch pipe 422 and third hot water branch pipe 423 are connected by a tee. Hot water inlet branch pipe 110b is connected to first hot water branch pipe 421. Heat exchange pipe 200b is connected to second hot water branch pipe 422. Water outlet pipe 300b is connected to third hot water branch pipe 423. Control valve 500 includes first control valve 501 and second control valve 502. First control valve 501 is located in first cold water branch pipe 411, and second control valve 502 is located in first hot water branch pipe 421.
[0040] Among them, reference Figure 1 As shown, the refrigeration system 10 for the wrapping unit includes a wrapping refrigeration unit 100, a wrapping unit 300, and a main wrapping unit pipe 400. The wrapping refrigeration unit 100 is connected to the wrapping unit 300 through the main wrapping unit pipe 400. Furthermore, the wrapping refrigeration unit 100 transmits chilled water to the wrapping unit 300 through the main wrapping unit pipe 400, thereby achieving heat dissipation and cooling of the wrapping unit 300. Simultaneously, the hot water generated by the wrapping unit 300 during the heat dissipation and cooling process is transmitted back to the wrapping refrigeration unit 100 through the main wrapping unit pipe 400. The wrapping refrigeration unit 100 then cools the returned hot water. Therefore, the refrigeration process of the wrapping unit refrigeration system 10 is achieved through the wrapping refrigeration unit 100, the wrapping unit 300, and the main wrapping unit pipe 400.
[0041] Further reference Figure 1As shown, the wrapping unit refrigeration system 10 also includes a power center refrigeration unit 200, which is connected to the wrapping unit 300 via the wrapping unit main pipeline 400. Thus, the newly added power center refrigeration unit 200 also provides cooling for the wrapping unit 300. In other words, both the wrapping unit refrigeration unit 100 and the power center refrigeration unit 200 in the wrapping unit refrigeration system 10 can cool the wrapping unit 300, improving the working efficiency of the wrapping unit refrigeration system 10 and ensuring the cooling effect on the wrapping unit 300.
[0042] For details, please refer to Figure 1 and Figure 2 As shown, the roll-to-roll refrigeration unit 100 includes at least one roll-to-roll refrigeration unit 110. The roll-to-roll refrigeration unit 110 includes a cold water outlet branch pipe 110a and a hot water inlet branch pipe 110b. The cold water outlet branch pipe 110a is used to discharge the refrigerant provided by the roll-to-roll refrigeration unit 110 to the roll-to-roll unit 300. The hot water inlet branch pipe 110b is used to recover the heated water after cooling in the roll-to-roll unit 300 and then cool the recovered liquid. Similarly, the power center refrigeration unit 200 includes a cooling pipe 200a and a heat exchange pipe 200b. The cooling pipe 200a is used to discharge the refrigerant provided by the roll-to-roll refrigeration unit 110 to the roll-to-roll unit 300. The heat exchange pipe 200b is used to recover the heated water after cooling in the roll-to-roll unit 300 and then cool the recovered liquid. The roll packaging refrigeration unit 110 includes an air-cooled heat pump chiller, and the power center refrigeration unit 200 includes a centrifugal refrigeration unit. In this embodiment of the invention, the two different types of refrigeration units can be connected in parallel to achieve efficient refrigeration of the roll packaging unit 300.
[0043] For details, please refer to Figure 1 As shown, the wrapping unit 300 includes an inlet pipe 300a and an outlet pipe 300b. The inlet pipe 300a is used to connect to a pipe that provides refrigerant liquid, so that the refrigerant liquid is input into the wrapping unit 300 to cool the wrapping unit 300. The outlet pipe 300b is used to connect to a pipe that receives hot water, so that the refrigerant liquid that has been cooled and warmed up is discharged through the outlet pipe 300b.
[0044] Further reference Figure 1As shown, the main pipe 400 of the wrapping unit includes a wrapping unit cold pipe 410 and a wrapping unit heat pipe 420. The wrapping unit cold pipe 410 includes a first cold water branch pipe 411, a second cold water branch pipe 412, and a third cold water branch pipe 413. The first cold water branch pipe 411, the second cold water branch pipe 412, and the third cold water branch pipe 413 are connected by a tee. The cold water outlet branch pipe 110a is connected to the first cold water branch pipe 411. The cooling pipe 200a is connected to the second cold water branch pipe 412. The water inlet pipe 300a is connected to the third cold water branch pipe 413. In other words, the wrapping unit cold pipe 410, the cold water outlet branch pipe 110a, and the cooling pipe 200a are connected by a tee. In response, the wrapping unit 300 can be cooled by the wrapping refrigeration unit 100 through the connection of the first cold water branch pipe 411 and the third cold water branch pipe 413; or, the wrapping unit 300 can be cooled by the power center refrigeration unit 200 through the connection of the second cold water branch pipe 412 and the third cold water branch pipe 413; or, the wrapping unit 300 can be cooled by both the wrapping refrigeration unit 100 and the power center refrigeration unit 200 through the connection of the first cold water branch pipe 411, the second cold water branch pipe 412 and the third cold water branch pipe 413. Similarly, the heat pipe 420 of the wrapping unit includes a first hot water branch pipe 421, a second hot water branch pipe 422, and a third hot water branch pipe 423. These three branches are connected by a tee. A hot water inlet branch pipe 110b is connected to the first hot water branch pipe 421, a heat exchange pipe 200b is connected to the second hot water branch pipe 422, and an outlet pipe 300b is connected to the third hot water branch pipe 423. In other words, the heat pipe 420, the hot water inlet branch pipe 110b, and the heat exchange pipe 200b of the wrapping unit are connected by a tee.
[0045] Further reference Figure 1 As shown, the refrigeration system 10 of the wrapping unit also includes control valves 500, which include a first control valve 501 and a second control valve 502. The first control valve 501 is located on the first cold water branch pipe 411, and the second control valve 502 is located on the first hot water branch pipe 421. When the first control valve 501 and the second control valve 502 are open, the wrapping refrigeration unit 100 can refrigerate the wrapping unit 300; when the first control valve 501 and the second control valve 502 are closed, both the wrapping refrigeration unit 100 and the power center refrigeration unit 200 can refrigerate the wrapping unit 300. By adjusting the control valves 500, the refrigeration mode of the wrapping unit 300 can be adjusted. In other words, the on / off state and opening degree of the control valves 500 can be adaptively adjusted according to the current refrigeration demand of the wrapping unit 300, which helps to reduce refrigeration energy consumption and industrial costs.
[0046] Optionally, the control valves include solenoid valves, and the refrigeration system 10 of the wrapping unit can also be equipped with a control module, which is connected to the solenoid valve. Operators can pre-program the system according to requirements and control the solenoid valves based on the cooling needs of the wrapping unit 300. For example, during high summer temperatures, the centrifugal refrigeration unit (i.e., the power-centered refrigeration unit 200) with higher cooling efficiency can be controlled to cool the wrapping unit, and the first control valve 501 and the second control valve 502 can be adjusted accordingly to close. Alternatively, when a higher cooling effect is required, the first control valve 501 and the second control valve 502 can be controlled to open, allowing both the centrifugal refrigeration unit (i.e., the power-centered refrigeration unit 200) and the air-cooled heat pump chiller unit (wrapping refrigeration unit 110) to cool the wrapping unit. Or, during low winter temperatures, the centrifugal refrigeration unit (i.e., the power-centered refrigeration unit 200) with higher cooling efficiency can be kept off, and the first control valve 501 and the second control valve 502 can be adjusted to open, allowing only the air-cooled heat pump chiller unit (wrapping refrigeration unit 110) to cool the wrapping unit. Thus, the wrapping unit refrigeration system 10 provided by this embodiment of the invention has universality, allowing the cooling method to be adjusted according to different scenarios, ensuring cooling effect while reducing energy consumption and industrial costs.
[0047] In summary, this utility model embodiment provides a refrigeration system for a wrapping machine unit. The refrigeration system includes a wrapping refrigeration unit, a power center refrigeration unit, a wrapping machine unit, and a main pipeline for the wrapping machine unit. By connecting the refrigeration units with different operating modes in parallel to the inlet and outlet pipes of the wrapping machine unit, the refrigeration effect of the wrapping machine unit can be effectively improved. Furthermore, the wrapping refrigeration unit also includes control valves located on the cold and hot water transmission paths between the wrapping refrigeration unit and the wrapping machine unit. The control valves can be controlled according to the cooling requirements of the wrapping machine unit, which can also reduce energy consumption.
[0048] Figure 3 This is a schematic diagram of the structure of an air conditioning refrigeration unit provided in an embodiment of this utility model, for reference. Figure 1 and Figure 3 As shown, the refrigeration system 10 of the rolling and packaging unit also includes an air conditioning refrigeration unit 600, which includes an air conditioning refrigeration unit 610, which includes an air conditioning chiller cold pipe 610a and an air conditioning chiller heat pipe 610b; the air conditioning chiller cold pipe 610a is connected to the first cold water branch pipe 411, and the air conditioning chiller heat pipe 610b is connected to the first hot water branch pipe 421.
[0049] Further reference Figure 1 and Figure 3As shown, the refrigeration system 10 of the roll wrapping unit also includes an air conditioning refrigeration unit 600, which includes an air conditioning refrigeration unit 610, which is also an air-cooled heat pump chiller. The roll wrapping refrigeration unit 110 is generally a single-system chiller, while the air conditioning refrigeration unit 610 is generally a dual-system chiller. The air conditioning refrigeration unit 610 is generally used for supplying the surface cooler system of the air conditioner. In this embodiment, the air conditioning refrigeration unit 610 and the roll wrapping refrigeration unit 110 are connected in parallel to the cold pipe 410 of the roll wrapping unit, which can effectively improve the cooling effect of the roll wrapping unit refrigeration system 10.
[0050] For details, please refer to Figure 1 and Figure 3 As shown, the air conditioning refrigeration unit 610 includes an air conditioning chiller cold pipe 610a and an air conditioning chiller heat pipe 610b; the air conditioning chiller cold pipe 610a is connected to the first cold water branch pipe 411, and the air conditioning chiller heat pipe 610b is connected to the first hot water branch pipe 421.
[0051] Optionally, when using the roll-to-roll refrigeration unit 100 to cool the roll-to-roll refrigeration unit 300, if the load on the roll-to-roll refrigeration unit 110 is high, for example, when the load on the roll-to-roll refrigeration unit 110 reaches 95%, then both the air conditioning refrigeration unit 610 and the roll-to-roll refrigeration unit 110 are controlled to cool the roll-to-roll refrigeration unit 300 simultaneously. If the load on the roll-to-roll refrigeration unit 110 is low, for example, when the load on the roll-to-roll refrigeration unit 110 is less than 95%, then the air conditioning refrigeration unit 610 is controlled to shut down, and only the roll-to-roll refrigeration unit 110 is controlled to cool the roll-to-roll refrigeration unit 300. This ensures the cooling effect on the roll-to-roll refrigeration unit 300 and avoids excessive energy consumption.
[0052] Continue to refer to Figures 1 to 3 As shown, the control valve 500 also includes a third control valve 503, a fourth control valve 504, a fifth control valve 505, and a sixth control valve 506; the third control valve 503 is located on the cold water outlet branch pipe 110a, the fourth control valve 504 is located on the hot water inlet branch pipe 110b, the fifth control valve 505 is located on the air conditioner chiller cold pipe 610a, and the sixth control valve 506 is located on the air conditioner chiller heat pipe 610b.
[0053] Further reference Figures 1 to 3As shown, the control valve 500 also includes a third control valve 503, a fourth control valve 504, a fifth control valve 505, and a sixth control valve 506. The third control valve 503 is located on the cold water outlet branch pipe 110a, the fourth control valve 504 is located on the hot water inlet branch pipe 110b, the fifth control valve 505 is located on the air conditioning chiller cold pipe 610a, and the sixth control valve 506 is located on the air conditioning chiller heat pipe 610b. By controlling the third control valve 503 and the fourth control valve 504 to conduct, the roll-to-roll refrigeration unit 110 cools the roll-to-roll unit 300; by controlling the fifth control valve 505 and the sixth control valve 506 to conduct, the air conditioning refrigeration unit 610 simultaneously cools the roll-to-roll unit 300.
[0054] For example, the third control valve 503 and the fourth control valve 504 can be adjusted to open, allowing the roll-to-roll refrigeration unit 110 to cool the roll-to-roll unit 300. When the load of the roll-to-roll refrigeration unit 110 reaches 95%, the fifth control valve 505 and the sixth control valve 506 can be adjusted to open, allowing the air conditioning refrigeration unit 610 to start after self-testing and also cool the roll-to-roll unit 300. Optionally, if the air conditioning refrigeration unit 610 is also in the on state before the fifth control valve 505 and the sixth control valve 506 are opened, it will not have any related impact on the cooling of the roll-to-roll unit 300. Furthermore, when the load of the roll-to-roll refrigeration unit 110 is less than 95%, the fifth control valve 505 and the sixth control valve 506 can be adjusted to close, allowing the air conditioning refrigeration unit 610 to stop cooling the roll-to-roll unit 300. Optionally, when it is determined that the load of the roll-up refrigeration unit 110 is less than 95%, the air conditioning refrigeration unit 610 receives a power-off signal and, 15 minutes after receiving the power-off signal, adjusts the fifth control valve 505 and the sixth control valve 506 to close.
[0055] Continue to refer to Figures 1 to 3As shown, the roll-type refrigeration unit 110 also includes a first flexible connection structure 111, a second flexible connection structure 112, a first shut-off valve 113, a second shut-off valve 114, and a first check valve 115; the first flexible connection structure 111, the first check valve 115, and the first shut-off valve 113 are located on the cold water outlet branch pipe 110a, and the first shut-off valve 113 is located on the side of the first check valve 115 near the first cold water branch pipe 411, and the first check valve 115 is located on the side of the first flexible connection structure 111 near the first cold water branch pipe 411; the second flexible connection structure 112 and the second shut-off valve 114 are located on the hot water inlet branch pipe 110b, and the second shut-off valve 114 is located on the side of the second flexible connection structure 112 near the first hot water branch pipe 421. The air conditioning refrigeration unit 610 also includes a third flexible connection structure 611, a fourth flexible connection structure 612, a third shut-off valve 613, a fourth shut-off valve 614, and a second check valve 615. The third flexible connection structure 611, the second check valve 615, and the third shut-off valve 613 are located on the air conditioning chiller cold pipe 610a, and the third shut-off valve 613 is located on the side of the second check valve 615 near the first cold water branch pipe 411, and the second check valve 615 is located on the side of the third flexible connection structure 611 near the first cold water branch pipe 411. The fourth flexible connection structure 612 and the fourth shut-off valve 614 are located on the air conditioning chiller heat pipe 610b, and the fourth shut-off valve 614 is located on the side of the fourth flexible connection structure 612 near the first hot water branch pipe 421.
[0056] Further reference Figure 2 As shown, a first flexible connection structure 111, a first check valve 115, and a first shut-off valve 113 are installed on the cold water outlet branch pipe 110a. The first check valve 115 prevents backflow of cold water, the first shut-off valve 113 controls the on / off state of the pipeline, and the first flexible connection structure 111 enables a flexible connection between the pipeline and the first cold water branch pipe 411, ensuring a smooth transition at the joint. By installing the first flexible connection structure 111, the first check valve 115, and the first shut-off valve 113, the stability of cold water transmission can be effectively guaranteed, thus ensuring the operational stability of the refrigeration system 10 of the rolling mill unit. Similarly, a second flexible connection structure 112 and a second shut-off valve 114 are installed on the hot water inlet branch pipe 110b.
[0057] Further reference Figure 3As shown, a third flexible connection structure 611, a second check valve 615, and a third shut-off valve 613 are installed on the cold pipe 610a of the air conditioning chiller. The second check valve 615 prevents backflow of cold water, and the third shut-off valve 613 controls the on / off state of the pipeline. The third flexible connection structure 611 enables a flexible connection between the pipeline and the first cold water branch pipe 411, ensuring a smooth transition at the joint. By installing the third flexible connection structure 611, the second check valve 615, and the third shut-off valve 613, the stability of cold water transmission can be effectively guaranteed, thus ensuring the operational stability of the refrigeration system 10 of the roll-up unit. Similarly, a fourth flexible connection structure 612 and a fourth shut-off valve 614 are installed on the heat pipe 610b of the air conditioning chiller.
[0058] Figure 4 This is a schematic diagram of the structure of a power center refrigeration unit provided in an embodiment of this utility model, for reference. Figure 1 and Figure 4 As shown, the power center refrigeration unit 200 includes a power center refrigeration unit 210 and a heat exchanger 220; the power center refrigeration unit 210 includes a power center chiller cold pipe 210a and a power center chiller heat pipe 210b, and the heat exchanger 220 includes a primary cooling end 220a, a primary heat exchange end 220b, a secondary cooling end 220c, and a secondary heat exchange end 220d; the cooling pipe 200a includes a primary cooling pipe 200a1 and a secondary cooling pipe 200a2, and the heat pipe 200b includes a primary heat exchange pipe 200b1 and a secondary heat exchange pipe 200b2; the first end of the primary cooling pipe 200a1 is connected to the power center... The chiller cold pipe 210a is connected; the second end of the primary cooling pipe 200a1 is connected to the primary cooling end 220a; the first end of the primary heat exchange pipe 200b1 is connected to the power center chiller heat pipe 210b; the second end of the primary heat exchange pipe 200b1 is connected to the primary heat exchange end 220b; the first end of the secondary cooling pipe 200a2 is connected to the secondary cooling end 220c; the second end of the secondary cooling pipe 200a2 is connected to the second cold water branch pipe 412; the first end of the secondary heat exchange pipe 200b2 is connected to the secondary heat exchange end 220d; and the second end of the secondary heat exchange pipe 200b2 is connected to the second hot water branch pipe 422.
[0059] The power center refrigeration unit 200 includes a power center refrigeration unit 210 and a heat exchanger 220. The power center refrigeration unit 210 is connected to the heat exchanger 220, and the heat exchanger 220 is in turn connected to the wrapping machine unit 300 to provide refrigeration for the wrapping machine unit 300. For details, please refer to [reference needed]. Figure 1 and Figure 4As shown, the power center refrigeration unit 210 includes a power center chiller cold pipe 210a and a power center chiller heat pipe 210b. The heat exchanger 220 includes a primary cooling end 220a, a primary heat exchange end 220b, a secondary cooling end 220c, and a secondary heat exchange end 220d. The cooling pipe 200a includes a primary cooling pipe 200a1 and a secondary cooling pipe 200a2, and the heat exchange pipe 200b includes a primary heat exchange pipe 200b1 and a secondary heat exchange pipe 200b2. The connection relationship between the power center connection unit 210, the heat exchanger 220, and the coiling unit 300 is as follows: the first end of the primary cooling pipe 200a1 is connected to the power center chiller unit 300. The central chiller's cold pipe 210a is connected; the second end of the primary cooling pipe 200a1 is connected to the primary cooling end 220a; the first end of the primary heat exchange pipe 200b1 is connected to the power central chiller's heat pipe 210b; and the second end of the primary heat exchange pipe 200b1 is connected to the primary heat exchange end 220b. The first end of the secondary cooling pipe 200a2 is connected to the secondary cooling end 220c; the second end of the secondary cooling pipe 200a2 is connected to the second cold water branch pipe 412; the first end of the secondary heat exchange pipe 200b2 is connected to the secondary heat exchange end 220d; and the second end of the secondary heat exchange pipe 200b2 is connected to the second hot water branch pipe 422.
[0060] Furthermore, the power center refrigeration unit 200 is connected in parallel with the wrapping machine refrigeration unit 100 in the piping of the wrapping machine 300. For example, the chilled water outlet temperature range of the power center refrigeration unit 210 is approximately 7-12℃. To meet the required chilled water temperature of 16-20℃ for the wrapping machine 300, the temperature of the chilled water supplied by the power center refrigeration unit 210 needs to be increased. Therefore, a heat exchanger 220 is required. The heat exchanger 220 can perform secondary regulation of the water temperature supplied by the power center refrigeration unit 210 to ensure that the water temperature supplied to the wrapping machine 300 is appropriate.
[0061] Continue to refer to Figure 1 and Figure 4 As shown, the control valve 500 also includes a seventh control valve 507, an eighth control valve 508, a ninth control valve 509, and a tenth control valve 510; the seventh control valve 507 is located at the primary cooling end 220a, the eighth control valve 508 is located at the primary heat exchange end 220b, the ninth control valve 509 is located at the secondary cooling end 220c, and the tenth control valve 510 is located at the secondary heat exchange end 220d.
[0062] Among them, reference Figure 1 and Figure 4As shown, control valve 500 also includes a seventh control valve 507, an eighth control valve 508, a ninth control valve 509, and a tenth control valve 510. Specifically, the seventh control valve 507 is located at the primary cooling end 220a, the eighth control valve 508 is located at the primary heat exchange end 220b, the ninth control valve 509 is located at the secondary cooling end 220c, and the tenth control valve 510 is located at the secondary heat exchange end 220d. Through the seventh control valve 507, the eighth control valve 508, the ninth control valve 509, and the tenth control valve 510, precise control of each pipe in the power center refrigeration unit 200 can be effectively achieved, which is beneficial to improving the overall cooling effect and avoiding excessive energy consumption.
[0063] For example, when the heat exchanger 220 needs to regulate the temperature of the water supplied by the power center refrigeration unit 210, the seventh control valve 507, the eighth control valve 508, the ninth control valve 509, and the tenth control valve 510 are adjusted to be open; when the heat exchanger 220 does not need to regulate the temperature of the water supplied by the power center refrigeration unit 210, the seventh control valve 507, the eighth control valve 508, the ninth control valve 509, and the tenth control valve 510 are adjusted to be closed.
[0064] For example, when the power center refrigeration unit 200 needs to cool the wrapping unit 300, the first control valve 501 and the second control valve 502 can be closed first, and the seventh control valve 507, the eighth control valve 508, the ninth control valve 509, and the tenth control valve 510 can be opened (i.e., the power center refrigeration unit 200 cools the wrapping unit 300, but the wrapping refrigeration unit 110 does not cool the wrapping unit 300). When the outlet water temperature of the heat exchanger 220 is high, for example, greater than or equal to 19°C, the control module can first cut off the power center refrigeration unit 200, close the seventh control valve 507, the eighth control valve 508, the ninth control valve 509, and the tenth control valve 510. After the power center refrigeration unit 200 stops running, the first control valve 501 and the second control valve 502 are opened, i.e., the wrapping refrigeration unit 110 does not cool the wrapping unit 300. Afterwards, the seventh control valve 507, the eighth control valve 508, the ninth control valve 509, and the tenth control valve 510 can be adjusted to be turned on, and the power center refrigeration unit 200 will start self-testing and operation.
[0065] Optionally, heat exchanger 220 may include a plate heat exchanger. Specifically, heat exchanger 220 may be a plate heat exchanger.
[0066] Optional, see reference Figure 1As shown, the control valve 500 also includes a first exhaust valve 521, a second exhaust valve 522, a third exhaust valve 523, and a fourth exhaust valve 524; the first exhaust valve 521 is located in the primary cooling pipe 200a1, the second exhaust valve 522 is located in the primary heat exchange pipe 200b1, the third exhaust valve 523 is located in the secondary cooling pipe 200a2, and the fourth exhaust valve 524 is located in the secondary heat exchange pipe 200b2.
[0067] Furthermore, the control valves may also include vent valves. The vent valves enable automatic venting of the internal components of the pipeline, ensuring more stable medium transport within the corresponding pipeline. Specifically, the control valve 500 also includes a first vent valve 521, a second vent valve 522, a third vent valve 523, and a fourth vent valve 524. The first vent valve 521 is located on the primary cooling pipe 200a1, the second vent valve 522 is located on the primary heat exchange pipe 200b1, the third vent valve 523 is located on the secondary cooling pipe 200a2, and the fourth vent valve 524 is located on the secondary heat exchange pipe 200b2. By adding vent valves to the cooling pipes 200a and 200b, the power center refrigeration unit 200 can more stably cool the packaging unit 300.
[0068] Optional, see reference Figure 1 As shown, the control valve 500 also includes a fifth vent valve 525 and a sixth vent valve 526; the fifth vent valve 525 is located in the inlet pipe 300a, and the sixth vent valve 526 is located in the outlet pipe 300b.
[0069] Furthermore, the control valve 500 also includes a fifth vent valve 525 and a sixth vent valve 526. The fifth vent valve 525 is located in the inlet pipe 300a, and the sixth vent valve 526 is located in the outlet pipe 300b. By adding vent valves to the inlet pipe 300a and the outlet pipe 300b, it can be ensured that the power center refrigeration unit 200 and / or the roll-and-pack refrigeration unit 100 provide more stable refrigeration for the roll-and-pack unit 300.
[0070] Figure 5 yes Figure 1 An enlarged schematic diagram of region A in the middle, for reference. Figure 1 and Figure 5 As shown, the roll-and-pack refrigeration unit 100 includes three roll-and-pack refrigeration units 110.
[0071] Furthermore, the number of winding refrigeration units 110 in the winding refrigeration unit 100 varies, as can be found in the following references. Figure 5 As shown, the roll-and-pack refrigeration unit 100 includes three roll-and-pack refrigeration units 110, and the three roll-and-pack refrigeration units 110 are connected in parallel, which effectively improves the refrigeration effect of the roll-and-pack refrigeration unit 100 on the roll-and-pack unit 300.
[0072] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention. The scope of the present invention is determined by the scope of the appended claims.
Claims
1. A refrigeration system for a roll packaging unit, characterized in that, This includes the roll wrapping refrigeration unit, the power center refrigeration unit, the roll wrapping unit, the main piping of the roll wrapping unit, and control valves; The roll-type refrigeration unit includes at least one roll-type refrigeration unit, which includes a cold water outlet branch pipe and a hot water inlet branch pipe; the roll-type refrigeration unit includes an air-cooled heat pump chiller unit. The power center refrigeration unit includes a cooling pipe and a heat exchange pipe, and the power center refrigeration unit includes a centrifugal refrigeration unit; The wrapping machine unit includes an inlet pipe and an outlet pipe; The main piping of the wrapping machine unit includes a cold pipe and a heat pipe. The cold pipe includes a first cold water branch pipe, a second cold water branch pipe, and a third cold water branch pipe, which are connected by a tee. The cold water outlet branch pipe is connected to the first cold water branch pipe, the heat exchange pipe is connected to the second cold water branch pipe, and the inlet pipe is connected to the third cold water branch pipe. The heat pipe includes a first hot water branch pipe, a second hot water branch pipe, and a third hot water branch pipe, which are connected by a tee. The hot water inlet branch pipe is connected to the first hot water branch pipe, the heat exchange pipe is connected to the second hot water branch pipe, and the outlet pipe is connected to the third hot water branch pipe. The control valves include a first control valve and a second control valve, wherein the first control valve is located in the first cold water branch pipe and the second control valve is located in the first hot water branch pipe.
2. The refrigeration system of the wrapping unit according to claim 1, characterized in that, The refrigeration system of the rolling and packaging unit also includes an air conditioning refrigeration unit, which includes an air conditioning refrigeration unit, which includes an air conditioning refrigeration unit, which includes an air conditioning refrigeration unit cold pipe and an air conditioning refrigeration unit heat pipe; The air conditioner's chiller pipe is connected to the first chilled water branch pipe, and the air conditioner's heat pipe is connected to the first hot water branch pipe.
3. The refrigeration system of the wrapping unit according to claim 2, characterized in that, The control valve also includes a third control valve, a fourth control valve, a fifth control valve, and a sixth control valve; The third control valve is located on the cold water outlet branch pipe, the fourth control valve is located on the hot water inlet branch pipe, the fifth control valve is located on the air conditioner chiller cold pipe, and the sixth control valve is located on the air conditioner chiller hot pipe.
4. The refrigeration system of the wrapping unit according to claim 2, characterized in that, The roll-wrapping refrigeration unit further includes a first flexible connection structure, a second flexible connection structure, a first shut-off valve, a second shut-off valve, and a first check valve; The first flexible connection structure, the first check valve, and the first shut-off valve are located on the cold water outlet branch pipe, and the first shut-off valve is located on the side of the first check valve closer to the first cold water branch pipe, and the first check valve is located on the side of the first flexible connection structure closer to the first cold water branch pipe; the second flexible connection structure and the second shut-off valve are located on the hot water inlet branch pipe, and the second shut-off valve is located on the side of the second flexible connection structure closer to the first hot water branch pipe. The air conditioning refrigeration unit also includes a third flexible connection structure, a fourth flexible connection structure, a third shut-off valve, a fourth shut-off valve, and a second check valve. The third flexible connection structure, the second check valve, and the third shut-off valve are located on the air conditioning chiller cold pipe, and the third shut-off valve is located on the side of the second check valve near the first cold water branch pipe, and the second check valve is located on the side of the third flexible connection structure near the first cold water branch pipe. The fourth flexible connection structure and the fourth shut-off valve are located on the air conditioner's cooling heat pipe, and the fourth shut-off valve is located on the side of the fourth flexible connection structure closer to the first hot water branch pipe.
5. The refrigeration system of the wrapping unit according to claim 1, characterized in that, The power center refrigeration unit includes a power center refrigeration unit and a heat exchanger; the power center refrigeration unit includes a power center chiller cold pipe and a power center chiller heat pipe, and the heat exchanger includes a primary cooling end, a primary heat exchange end, a secondary cooling end, and a secondary heat exchange end; The cooling tube includes a primary cooling tube and a secondary cooling tube, and the heat exchange tube includes a primary heat exchange tube and a secondary heat exchange tube; The first end of the primary cooling pipe is connected to the cooling pipe of the power center chiller, and the second end of the primary cooling pipe is connected to the primary cooling end. The first end of the primary heat exchange pipe is connected to the heat pipe of the power center chiller, and the second end of the primary heat exchange pipe is connected to the primary heat exchange end. The first end of the secondary cooling pipe is connected to the secondary cooling end, and the second end of the secondary cooling pipe is connected to the second cold water branch pipe. The first end of the secondary heat exchange pipe is connected to the secondary heat exchange end, and the second end of the secondary heat exchange pipe is connected to the second hot water branch pipe.
6. The refrigeration system of the wrapping unit according to claim 5, characterized in that, The control valves also include a seventh control valve, an eighth control valve, a ninth control valve, and a tenth control valve; The seventh control valve is located at the primary cooling end, the eighth control valve is located at the primary heat exchange end, the ninth control valve is located at the secondary cooling end, and the tenth control valve is located at the secondary heat exchange end.
7. The refrigeration system of the wrapping unit according to claim 5, characterized in that, The heat exchanger includes a plate heat exchanger.
8. The refrigeration system of the wrapping unit according to claim 5, characterized in that, The control valve also includes a first exhaust valve, a second exhaust valve, a third exhaust valve, and a fourth exhaust valve; The first exhaust valve is located on the primary cooling tube, the second exhaust valve is located on the primary heat exchange tube, the third exhaust valve is located on the secondary cooling tube, and the fourth exhaust valve is located on the secondary heat exchange tube.
9. The refrigeration system of the wrapping unit according to claim 1, characterized in that, The control valve also includes a fifth exhaust valve and a sixth exhaust valve; The fifth vent valve is located in the inlet pipe, and the sixth vent valve is located in the outlet pipe.
10. The refrigeration system of the wrapping unit according to claim 1, characterized in that, The roll-and-pack refrigeration unit includes three roll-and-pack refrigeration units.