Hot and cold circulation control system for beer fermentation workshop

Abstract

The utility model relates to the technical field of hot and cold circulation control, in particular to a hot and cold circulation control system for a beer fermentation workshop. The system comprises a high-temperature hot water pipeline, a hot water circulating pipeline, a cooling water pipeline and a cold energy recovery pipeline, wherein the high-temperature hot water pipeline comprises a heat pump unit, a water tank, a hot water circulating pump I and an isolation plate heat exchanger; the hot water circulation pipeline comprises a hot water circulation pump II, and the water tank is connected with the isolation plate heat exchanger through the hot water circulation pump II. The cooling water pipeline comprises a curtain wall integrated air conditioner, an expansion tank and an air conditioner water pump; and the cold energy recovery pipeline is used for connecting cold energy of the curtain wall integrated air conditioner with the heat pump unit through a pipeline. According to the curtain wall integrated air conditioner, cold energy of the curtain wall integrated air conditioner is recycled through the newly-added cold energy recycling pipeline, energy waste is reduced, appropriate high-temperature hot water and low-temperature cooling water are provided for a beer fermentation workshop, the technological requirements of beer fermentation are met, the quality and efficiency of beer fermentation are improved, and the production cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of thermal and cooling cycle control technology, specifically to a thermal and cooling cycle control system for a beer fermentation workshop. Background Technology

[0002] In beer production, temperature control in the fermentation workshop is crucial. Different fermentation stages have specific temperature requirements, necessitating a precise and stable supply of suitable high-temperature hot water and low-temperature cooling water. For example, the beer fermentation refrigerant circulation treatment device disclosed in Chinese Patent Publication No. CN208308824U utilizes refrigerant circulation to maintain the temperature within the fermentation tank within the required range. However, current hot-cold circulation systems used in beer fermentation workshops suffer from low energy efficiency, resulting in significant energy waste; and their temperature control precision is insufficient, making it difficult to accurately meet the needs of each fermentation stage. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology and provide a hot and cold circulation control system for beer fermentation workshops.

[0004] The technical solution adopted in this utility model is as follows:

[0005] A hot and cold circulation control system for a beer fermentation workshop includes a high-temperature hot water pipeline, a hot water circulation pipeline, a cooling water pipeline, and a cold energy recovery pipeline, wherein:

[0006] The high-temperature hot water pipeline includes a heat pump unit, a water tank, a hot water circulation pump I, and an isolation plate heat exchanger. The heat pump unit is connected to one side of the isolation plate heat exchanger through the hot water circulation pump I, and the water tank is connected to the other side of the isolation plate heat exchanger, providing 85°C high-temperature hot water to the water tank.

[0007] Hot water circulation pipeline, including hot water circulation pump II, the water tank is connected to the isolation plate heat exchanger through hot water circulation pump II;

[0008] The cooling water pipeline includes an integrated curtain wall air conditioner, an expansion tank, and an air conditioning water pump. The water supply end of the integrated curtain wall air conditioner is connected to the water supply pipeline through the expansion tank and the air conditioning water pump. The drainage end of the integrated curtain wall air conditioner discharges condensate through the drain pipe. The integrated curtain wall air conditioner provides 7-10℃ cooling water to the fermentation workshop.

[0009] The cold energy recovery pipeline connects the cold energy of the curtain wall integrated air conditioner to the heat pump unit through the pipeline.

[0010] This technical solution utilizes newly added cold energy recovery pipelines to recover and reuse the cold energy of the integrated curtain wall air conditioner, reducing energy waste and improving the energy efficiency of the entire control system. Specifically, the high-temperature hot water pipeline provides 85℃ high-temperature hot water to meet the high-temperature hot water requirements of some processes in the fermentation workshop; the hot water circulation pipeline circulates the high-temperature hot water in the water tank, ensuring uniform water temperature and improving thermal energy utilization efficiency; the cooling water pipeline provides 7-10℃ cooling water to the fermentation workshop, providing a suitable low-temperature environment to ensure the smooth progress of the fermentation process; and the cold energy recovery pipeline recovers and reuses cold energy, improving the energy efficiency of the entire system. This technical solution addresses the problems of low energy efficiency, poor temperature control accuracy, and untimely system fault response in existing technologies, improving the quality and efficiency of beer fermentation and reducing production costs.

[0011] In addition, the above-mentioned hot and cold circulation control system for beer fermentation workshops proposed according to this utility model may also have the following additional technical features:

[0012] According to one embodiment of the present invention, a flow switch I is provided on the high-temperature hot water pipeline, a flow switch II is provided on the hot water circulation pipeline, and a flow switch III is provided on the cooling water pipeline. All three flow switches, namely flow switch I, flow switch II, and flow switch III, are three-wire flow switches.

[0013] If flow switch I is disconnected and three attempts fail within 3-5 minutes, a unit fault alarm will be triggered. If flow switch II is disconnected and three attempts fail within 3-5 minutes, hot water circulation pump II will be automatically stopped for pump fault protection. If flow switch III is disconnected and three attempts fail, an air conditioning water pump malfunction will be indicated, but operation will not be interrupted.

[0014] In this technical solution, when flow switch I is disconnected, a unit fault alarm is triggered if three retries within 3-5 minutes fail, promptly alerting staff to handle the fault and preventing its escalation. When flow switch II is disconnected, three retries within 3-5 minutes fail, automatically stopping the hot water circulation pump II for pump fault protection, preventing damage from prolonged waterless operation. When flow switch III is disconnected, three retries fail, triggering a fault alert for an abnormal air conditioning water pump but not interfering with operation, ensuring the system can promptly detect and handle abnormalities in the air conditioning water pump without affecting overall operation. It should be noted that the PLC controller's control of flow switches I, II, and III is a standard setting; only the hardware structure has been improved.

[0015] According to one embodiment of the present invention, temperature sensor I and temperature sensor II for detecting the inlet and outlet water temperatures are respectively provided on both sides of the heat pump unit;

[0016] Temperature sensors III, IV, V, and VI are respectively installed on the inlet side, outlet side, cold side, and water tank side of the isolation plate heat exchanger;

[0017] Temperature sensors VII and VIII, which detect the inlet and outlet water temperatures, are respectively installed on both sides of the integrated curtain wall air conditioner.

[0018] Temperature sensor I, temperature sensor II, temperature sensor III, temperature sensor IV, temperature sensor V, temperature sensor VI, temperature sensor V and temperature sensor VI are all PT100 temperature sensors.

[0019] In this technical solution, the temperature sensor group of the heat pump unit is used to monitor the inlet and outlet water temperatures of the heat pump unit in real time to ensure the normal operation of the heat pump unit; the temperature sensor group of the isolation plate heat exchanger can comprehensively monitor the temperature of various parts of the isolation plate heat exchanger; the temperature sensor group of the curtain wall integrated air conditioner is used to monitor the inlet and outlet water temperatures of the curtain wall integrated air conditioner to ensure the stability of the cooling water temperature. The PT100 temperature sensor has the advantages of high measurement accuracy and good stability.

[0020] According to one embodiment of the present invention, when the temperature of temperature sensor VI in the high-temperature hot water pipeline is lower than the set temperature, hot water circulation pump I is automatically started; the high-temperature hot water pipeline and the hot water circulation pipeline are linked control mechanisms, and when the difference between temperature sensor III and temperature sensor VI exceeds the set threshold, hot water circulation pump II is automatically started.

[0021] According to one embodiment of the present invention, the control system further includes a Siemens S7-1200 PLC controller. The input terminals of the PLC controller are connected to several temperature sensors via a 485 bus, and the output terminals of the PLC controller are connected to a heat pump unit, hot water circulation pump I, hot water circulation pump II, curtain wall integrated air conditioner, air conditioning water pump, flow switch I, flow switch II and flow switch III via Profinet bus cables.

[0022] According to one embodiment of the present invention, the integrated curtain wall air conditioner is an air conditioner of model FTLBDK260, and the curtain wall has a built-in fan, heat exchange unit and grille.

[0023] In this technical solution, the FTLBDK260 air conditioner has the advantages of compact structure and good cooling effect, which can meet the cooling water requirements of the beer fermentation workshop.

[0024] Compared with the prior art, this utility model has the following advantages:

[0025] By adding a cold energy recovery pipeline, the cold energy of the curtain wall integrated air conditioner is recovered and utilized, reducing energy waste, providing suitable high-temperature hot water and low-temperature cooling water for the beer fermentation workshop, meeting the process requirements of beer fermentation, improving the quality and efficiency of beer fermentation, and reducing production costs. Attached Figure Description

[0026] Figure 1 This is one of the structural schematic diagrams of this utility model.

[0027] Figure 2 This is the second structural schematic diagram of this utility model.

[0028] In the diagram: 1. Heat pump unit; 2. Water tank; 3. Hot water circulation pump I; 4. Isolation plate heat exchanger; 5. Hot water circulation pump II; 6. Integrated curtain wall air conditioner; 7. Expansion tank; 8. Air conditioning water pump; 9. Drainage pipe; 10. Water supply pipe; 11. Temperature sensor I; 12. Temperature sensor II; 13. Temperature sensor III; 14. Temperature sensor IV; 15. Temperature sensor V; 16. Temperature sensor VI; 17. Temperature sensor VII; 18. Temperature sensor VIII. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0030] Example 1

[0031] like Figure 1 and Figure 2 As shown, this embodiment provides a hot and cold circulation control system for a beer fermentation workshop, including a high-temperature hot water pipeline, a hot water circulation pipeline, a cooling water pipeline, and a cold energy recovery pipeline, wherein:

[0032] The high-temperature hot water pipeline includes a heat pump unit 1, a water tank 2, a hot water circulation pump I3 and an isolation plate heat exchanger 4. The heat pump unit 1 is connected to one side of the isolation plate heat exchanger 4 through the hot water circulation pump I3, and the water tank 2 is connected to the other side of the isolation plate heat exchanger 4, providing 85°C high-temperature hot water to the water tank 2.

[0033] Hot water circulation pipeline, including hot water circulation pump II5, water tank 2 is connected to isolation plate heat exchanger 4 through hot water circulation pump II5;

[0034] The cooling water pipeline includes an integrated curtain wall air conditioner 6, an expansion tank 7, and an air conditioning water pump 8. The water supply end of the integrated curtain wall air conditioner 6 is connected to the water supply pipe 10 through the expansion tank 7 and the air conditioning water pump 8. The drainage end of the integrated curtain wall air conditioner 6 discharges condensate through the drain pipe 9. The integrated curtain wall air conditioner 6 provides 7-10℃ cooling water to the fermentation workshop.

[0035] The cold energy recovery pipeline connects the cold energy of the curtain wall integrated air conditioner 6 to the heat pump unit 1 through the pipeline.

[0036] like Figure 1 and Figure 2 As shown, this technical solution utilizes a newly added cold energy recovery pipeline to recover and reuse the cold energy of the integrated curtain wall air conditioner 6, reducing energy waste and improving the energy efficiency of the entire control system. Specifically, the high-temperature hot water pipeline provides 85℃ high-temperature hot water to meet the high-temperature hot water requirements of some processes in the fermentation workshop; the hot water circulation pipeline circulates the high-temperature hot water in the water tank 2, ensuring uniform water temperature and improving thermal energy utilization efficiency; the cooling water pipeline provides 7-10℃ cooling water to the fermentation workshop, providing a suitable low-temperature environment to ensure the smooth progress of the fermentation process; and the cold energy recovery pipeline recovers and reuses cold energy, improving the energy efficiency of the entire system. This technical solution solves the problems of low energy utilization efficiency, poor temperature control accuracy, and untimely system fault response in existing technologies, improving the quality and efficiency of beer fermentation and reducing production costs.

[0037] In addition, the above-mentioned hot and cold circulation control system for beer fermentation workshops proposed according to this utility model may also have the following additional technical features:

[0038] According to one embodiment of the present invention, a flow switch I is provided on the high-temperature hot water pipeline, a flow switch II is provided on the hot water circulation pipeline, and a flow switch III is provided on the cooling water pipeline. All three flow switches, namely flow switch I, flow switch II, and flow switch III, are three-wire flow switches.

[0039] If flow switch I is disconnected and three attempts fail within 3-5 minutes, a unit fault alarm will be triggered. If flow switch II is disconnected and three attempts fail within 3-5 minutes, hot water circulation pump II5 will be automatically stopped for pump fault protection. If flow switch III is disconnected and three attempts fail, an abnormal fault warning will be issued for air conditioning water pump 8, but operation will not be interrupted.

[0040] In this technical solution, when flow switch I is disconnected, if the system fails to retrace three times within 3-5 minutes, a unit fault alarm will be triggered to promptly remind staff to handle the fault and prevent it from escalating. When flow switch II is disconnected, if the system fails to retrace three times within 3-5 minutes, the hot water circulation pump II5 will be automatically stopped for pump fault protection to prevent damage to the pump due to prolonged operation without water. When flow switch III is disconnected, if the system fails to retrace three times, a fault warning for abnormal air conditioning water pump 8 will be issued, but the system will not intervene in its operation, ensuring that the abnormal situation of air conditioning water pump 8 can be detected and handled in a timely manner without affecting the overall operation of the system.

[0041] According to one embodiment of the present invention, temperature sensor I11 and temperature sensor II12 for detecting the inlet and outlet water temperatures are respectively provided on both sides of the heat pump unit 1;

[0042] Temperature sensors Ⅲ13, Ⅳ14, Ⅴ15 and Ⅵ16 are respectively installed on the inlet side, outlet side, cold side and water tank 2 side of the isolation plate heat exchanger 4;

[0043] Temperature sensors Ⅶ17 and Ⅷ18 for detecting the inlet and outlet water temperatures are respectively installed on both sides of the integrated curtain wall air conditioner 6.

[0044] Temperature sensors I11, II12, III13, IV14, V15, and VI16 are all PT100 temperature sensors.

[0045] In this technical solution, the temperature sensor group of the heat pump unit 1 is used to monitor the inlet and outlet water temperatures of the heat pump unit 1 in real time to ensure the normal operation of the heat pump unit 1; the temperature sensor group of the isolation plate heat exchanger 4 can comprehensively monitor the temperature of various parts of the isolation plate heat exchanger 4; the temperature sensor group of the curtain wall integrated air conditioner 6 is used to monitor the inlet and outlet water temperatures of the curtain wall integrated air conditioner 6 to ensure the stability of the cooling water temperature. The PT100 temperature sensor has the advantages of high measurement accuracy and good stability.

[0046] According to one embodiment of the present invention, when the temperature of the temperature sensor VI16 in the high-temperature hot water pipeline is lower than the set temperature, the hot water circulation pump I3 is automatically started; the high-temperature hot water pipeline and the hot water circulation pipeline are linked control mechanisms, and when the difference between the temperature sensor III13 and the temperature sensor VI16 exceeds the set threshold, the hot water circulation pump II5 is automatically started.

[0047] According to one embodiment of the present invention, the control system further includes a Siemens S7-1200 PLC controller. The input terminals of the PLC controller are connected to several temperature sensors via a 485 bus, and the output terminals of the PLC controller are connected to a heat pump unit 1, a hot water circulation pump I 3, a hot water circulation pump II 5, a curtain wall integrated air conditioner 6, an air conditioning water pump 8, a flow switch I, a flow switch II, and a flow switch III via Profinet bus cables.

[0048] According to one embodiment of the present invention, the integrated curtain wall air conditioner 6 adopts an air conditioner of model FTLBDK260, and its curtain wall has a built-in fan, heat exchange unit and grille.

[0049] In this technical solution, the FTLBDK260 air conditioner has the advantages of compact structure and good cooling effect, which can meet the cooling water requirements of the beer fermentation workshop.

[0050] The usage process of the above embodiments is as follows:

[0051] like Figure 1 and Figure 2 As shown, heat pump unit 1 starts up, and hot water is delivered to the isolation plate heat exchanger 4 via hot water circulation pump I3. The water in water tank 2 exchanges heat with the hot water delivered by heat pump unit 1 in the isolation plate heat exchanger 4, raising the water temperature in water tank 2 to 85℃. When temperature sensor VI16 detects that the water temperature in water tank 2 is lower than the set temperature, hot water circulation pump I3 is automatically started to ensure the water temperature in water tank 2 is stable. Water tank 2 is connected to the isolation plate heat exchanger 4 via hot water circulation pump II5 to achieve the circulation of high-temperature hot water in water tank 2. When the difference between temperature sensor III13 and temperature sensor VI16 exceeds the set threshold, hot water circulation pump II5 is automatically started to ensure the water temperature in water tank 2 is uniform. The curtain wall integrated air conditioner 6 starts up, drawing water from the water supply pipe 10 through expansion tank 7 and air conditioning water pump 8, and providing 7-10℃ cooling water to the fermentation workshop after heat exchange. After the cooling water is used in the fermentation workshop, the resulting condensate is discharged through the drain pipe 9; the cold energy generated by the curtain wall integrated air conditioner 6 is transported to the heat pump unit 1 through the cold energy recovery pipeline to realize the recovery and utilization of cold energy.

[0052] It should be noted that the PLC controller's control of temperature and flow is a standard setting, with only improvements made to the hardware structure.

[0053] Although the present invention has been described in detail with reference to the accompanying drawings and preferred embodiments, it is not limited thereto. Various equivalent modifications or substitutions can be made to the embodiments of the present invention by those skilled in the art without departing from the spirit and essence of the present invention, and such modifications or substitutions should all be within the scope of the present invention. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should also be included within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the scope of the claims.

Claims

1. A hot and cold circulation control system for a beer fermentation workshop, characterized in that, This includes high-temperature hot water pipes, hot water circulation pipes, cooling water pipes, and cold energy recovery pipes, among which: The high-temperature hot water pipeline includes a heat pump unit (1), a water tank (2), a hot water circulation pump I (3), and an isolation plate heat exchanger (4). The heat pump unit (1) is connected to one side of the isolation plate heat exchanger (4) through the hot water circulation pump I (3), and the water tank (2) is connected to the other side of the isolation plate heat exchanger (4) to provide 85°C high-temperature hot water to the water tank (2). The hot water circulation pipeline includes a hot water circulation pump II (5), and the water tank (2) is connected to the isolation plate heat exchanger (4) through the hot water circulation pump II (5); The cooling water pipeline includes an integrated curtain wall air conditioner (6), an expansion tank (7), and an air conditioning water pump (8). The water supply end of the integrated curtain wall air conditioner (6) is connected to the water supply pipeline (10) through the expansion tank (7) and the air conditioning water pump (8). The drain end of the integrated curtain wall air conditioner (6) discharges condensate through the drain pipe (9). The integrated curtain wall air conditioner (6) provides 7-10℃ cooling water to the fermentation workshop. The cold energy recovery pipeline connects the cold energy of the curtain wall integrated air conditioner (6) to the heat pump unit (1) through the pipeline.

2. The beer fermentation workshop hot and cold circulation control system as described in claim 1, characterized in that, The high-temperature hot water pipeline is equipped with flow switch I, the hot water circulation pipeline is equipped with flow switch II, and the cooling water pipeline is equipped with flow switch III. Flow switch I, flow switch II, and flow switch III are all three-wire flow switches. If flow switch I is disconnected, and three attempts are made within 3-5 minutes without success, a unit fault alarm will be triggered. After the flow switch II is disconnected, if the hot water circulation pump II fails three times within 3-5 minutes, it will automatically stop to perform water pump fault protection; when the flow switch III is disconnected, if the air conditioning water pump (8) fails three times, it will provide a fault prompt but will not interfere with the operation.

3. The beer fermentation workshop hot and cold circulation control system as described in claim 2, characterized in that, Temperature sensor I (11) and temperature sensor II (12) for detecting the inlet and outlet water temperatures are respectively installed on both sides of the heat pump unit (1); Temperature sensor Ⅲ (13), temperature sensor Ⅳ (14), temperature sensor Ⅴ (15) and temperature sensor Ⅵ (16) are respectively installed on the inlet side, outlet side, cold side and water tank (2) side of the isolation plate heat exchanger (4); Temperature sensors VII (17) and VIII (18) for detecting the inlet and outlet water temperatures are respectively installed on both sides of the integrated curtain wall air conditioner (6); Temperature sensor I (11), temperature sensor II (12), temperature sensor III (13), temperature sensor IV (14), temperature sensor V (15), temperature sensor VI (16), temperature sensor V (15) and temperature sensor VI (16) are all temperature sensors with model number PT100.

4. The beer fermentation workshop hot and cold circulation control system as described in claim 3, characterized in that, When the temperature of the temperature sensor VI (16) of the high-temperature hot water pipeline is lower than the set temperature, the hot water circulation pump I (3) is automatically started. The high-temperature hot water pipeline and the hot water circulation pipeline are linked control mechanisms. When the difference between the temperature sensor III (13) and the temperature sensor VI (16) exceeds the set threshold, the hot water circulation pump II (5) is automatically started.

5. The beer fermentation workshop hot and cold circulation control system as described in claim 3, characterized in that, The control system also includes a Siemens S7-1200 PLC controller. The input terminals of the PLC controller are connected to several temperature sensors via a 485 bus. The output terminals of the PLC controller are connected to the heat pump unit (1), hot water circulation pump I (3), hot water circulation pump II (5), curtain wall integrated air conditioner (6), air conditioning water pump (8), flow switch I, flow switch II and flow switch III via Profinet bus cables.

6. The beer fermentation workshop hot and cold circulation control system as described in claim 1, characterized in that, The integrated curtain wall air conditioner (6) is an air conditioner of model FTLBDK260, and its curtain wall has a built-in fan, heat exchange unit and grille.

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