Production system capable of comprehensively utilizing cold energy and heat energy and control method

Abstract

The invention relates to the technical field of refrigeration and heating integrated systems, and discloses a production system capable of comprehensively utilizing cold and heat energy and a control method. A refrigeration house loop and a central hot water tank are subjected to cold and heat exchange through a refrigeration house first heat exchanger; the refrigeration house loop exchanges cold and heat with the central cold water tank through a refrigeration house second heat exchanger; the workshop air conditioner loop and the central hot water tank conduct cold and heat exchange through a workshop air conditioner first heat exchanger. The workshop air-conditioning loop and the central cold water tank perform cold-heat exchange through a workshop air-conditioning second heat exchanger; the hot water loop for production is communicated with the central hot water tank for cold and heat exchange; the hot water loop for production is communicated with the central cold water tank; the baking room loop is communicated with the central cold water tank for cold and heat exchange; the baking room loop is communicated with the central hot water tank for cold and heat exchange, so that the technical problem of energy waste in related production procedures of cured meat processing factories is solved, and the technical effect of improving the energy utilization efficiency of the system is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of refrigeration and heating integrated systems, and in particular to a production system and a control method for comprehensive utilization of cooling and heating energy. Background Art

[0002] For the cured meat processing plant, the refrigeration load of the workshop air conditioning loop and the cold storage loop is relatively large. The refrigeration load of the workshop air conditioning loop includes the air conditioning load and the low-temperature workshop load. The refrigeration load of the workshop air conditioning loop is concentrated during the daytime working hours. The peak load period of the whole year is in the summer, and there is basically no cold load in the winter. The refrigeration load of the cold storage loop needs to exist 24 hours a day all year round. The peak load period of the whole year is in the summer, and there will also be partial load in the winter. The hot water loop for production is basically used all year round, and the heat consumption in winter and summer is not much different. In addition, the baking room loop runs all year round, and the heat and cold consumption are irregular every day. The heat pump main unit in the baking room loop will intermittently provide hot water and cold water, and the heat pump main unit is not enough to provide hot water for production. In the related art, the production system of the cured meat processing plant has poor integration, and cannot fully utilize the excess heat and cold in each module of the system, which is not conducive to saving investment costs and operation and maintenance costs. Summary of the invention

[0003] The present application provides a production system and control method for comprehensive utilization of cold and heat energy, which solves the technical problem of energy waste in cured meat processing plants in the related art and achieves the technical effect of improving the energy utilization efficiency of the system and reducing operating energy consumption.

[0004] In order to achieve the above objectives, the main technical solutions adopted in this application include:

[0005] In the first aspect, an embodiment of the present application provides a production system for comprehensive utilization of cold and heat energy, the production system comprising a cold storage loop, a workshop air-conditioning loop, a hot water loop for production, a baking room loop, a cold and heat scheduling loop, a first heat exchanger for the cold storage, a second heat exchanger for the cold storage, a first heat exchanger for the workshop air-conditioning, and a second heat exchanger for the workshop air-conditioning, the cold and heat scheduling loop is used to collect and distribute excess cold and heat in the production system, wherein: the cold storage loop and the central hot water tank of the cold and heat scheduling loop perform cold and heat exchange through the first heat exchanger of the cold storage to reduce the exhaust temperature of the cold storage loop; the cold storage loop and the central cold water tank of the cold and heat scheduling loop perform cold and heat exchange through the second heat exchanger of the cold storage to increase the intake temperature of the cold storage loop; the workshop air-conditioning loop and the central hot water tank of the cold and heat scheduling loop perform cold and heat exchange through the second heat exchanger of the cold storage to increase the intake temperature of the cold storage loop The box exchanges heat and cold through the first heat exchanger of the workshop air-conditioning to reduce the exhaust temperature of the workshop air-conditioning; the workshop air-conditioning loop and the central cold water tank of the cold and heat scheduling loop exchange heat and cold through the second heat exchanger of the workshop air-conditioning to increase the intake temperature of the workshop air-conditioning; the production hot water loop is connected with the central hot water tank of the cold and heat scheduling loop to exchange heat and cold to increase the water temperature in the production hot water loop; the production hot water loop is connected with the central cold water tank of the cold and heat scheduling loop to recover the cooling water in the production hot water loop; the bakery loop is connected with the central cold water tank of the cold and heat scheduling loop to exchange heat and cold to increase the water temperature of the bakery cold water tank in the bakery loop; the bakery loop is connected with the central hot water tank of the cold and heat scheduling loop to exchange heat and cold to store excess heat in the bakery loop.

[0006] The production system for comprehensive utilization of cold and heat energy proposed in the embodiment of the present application includes a cold storage loop, a workshop air conditioning loop, a hot water loop for production, a baking room loop, a cold and heat scheduling loop, a first heat exchanger of the cold storage, a second heat exchanger of the cold storage, a first heat exchanger of the workshop air conditioning, and a second heat exchanger of the workshop air conditioning. The cold and heat scheduling loop is used to collect and distribute excess cold and heat in the production system, wherein: the cold storage loop and the central hot water tank of the cold and heat scheduling loop perform cold and heat exchange through the first heat exchanger of the cold storage to reduce the exhaust temperature of the cold storage loop; the cold storage loop and the central cold water tank of the cold and heat scheduling loop perform cold and heat exchange through the second heat exchanger of the cold storage to increase the intake temperature of the cold storage loop; the workshop air conditioning loop and the central hot water tank of the cold and heat scheduling loop perform cold and heat exchange through the first heat exchanger of the workshop air conditioning to reduce the exhaust temperature of the workshop air conditioning; The workshop air-conditioning loop and the central cold water tank of the cold and heat scheduling loop exchange heat through the second heat exchanger of the workshop air-conditioning to increase the intake temperature of the workshop air-conditioning; the production hot water loop is connected to the central hot water tank of the cold and heat scheduling loop for heat exchange to increase the water temperature in the production hot water loop; the production hot water loop is connected to the central cold water tank of the cold and heat scheduling loop to recover the cooling water in the production hot water loop; the bakery loop is connected to the central cold water tank of the cold and heat scheduling loop for heat exchange to increase the water temperature of the bakery cold water tank in the bakery loop; the bakery loop is connected to the central hot water tank of the cold and heat scheduling loop for heat exchange to store excess heat in the bakery loop, which solves the technical problem of energy waste in the cured meat processing plant in the related technology and achieves the technical effect of improving the energy utilization efficiency of the system and reducing operating energy consumption.

[0007] Optionally, the first heat exchanger of the cold storage is arranged between the compressor and the condenser on the cold storage loop, and the second heat exchanger of the cold storage is arranged between the liquid storage and the expansion valve on the cold storage loop.

[0008] Optionally, the first heat exchanger of the workshop air conditioner is arranged between the compressor and the condenser on the workshop air conditioner loop, and the second heat exchanger of the workshop air conditioner is arranged between the liquid storage device and the expansion valve on the workshop air conditioner loop.

[0009] Optionally, the workshop air-conditioning loop also includes an air-conditioning hot water tank and an air-conditioning cold water tank, the air-conditioning hot water tank is arranged between the first heat exchanger of the workshop air-conditioning and the central hot water tank, and the air-conditioning cold water tank is arranged between the second heat exchanger of the workshop air-conditioning and the central cold water tank.

[0010] Optionally, the production hot water loop includes a production hot water tank for storing and supplying hot water required by the production workshop. The production hot water tank is connected to the central hot water tank for heat exchange to increase the water temperature of the production hot water tank.

[0011] Optionally, the production hot water loop also includes a heat pump main unit, which is connected to the production hot water tank to increase the water temperature of the production hot water tank, and the heat pump main unit is connected to the central cold water tank to recover cooling water in the production hot water loop.

[0012] Optionally, the bakery loop also includes a bakery hot water tank and a bakery cold water tank. The bakery hot water tank and the central hot water tank exchange heat through the bakery water heat exchange device to reduce the water temperature in the bakery hot water tank; the bakery cold water tank and the central cold water tank are connected to exchange heat to increase the water temperature in the bakery cold water tank.

[0013] Optionally, the cold and heat scheduling loop also includes a cold and hot integrated energy-saving control module, which is respectively connected to the central hot water tank and the central cold water tank, and is used to control the cold and heat exchange, water level and water temperature of the central hot water tank and the central cold water tank.

[0014] In a second aspect, an embodiment of the present application provides a control method for comprehensive utilization of cold and heat energy, and the control method is implemented based on the above-mentioned production system for comprehensive utilization of cold and heat energy, wherein the production system includes a cold storage loop, a workshop air-conditioning loop, a production hot water loop, a baking room loop, a cold and heat scheduling loop, a first heat exchanger of the cold storage, a second heat exchanger of the cold storage, a first heat exchanger of the workshop air-conditioning, a second heat exchanger of the workshop air-conditioning, a central cold water tank, and a central hot water tank. The control method includes the following steps: opening the cold storage loop, the workshop air-conditioning loop, the production hot water loop, the baking room loop, and the cold and heat scheduling loop; if the exhaust temperature of the cold storage loop is higher than a first preset value, the cold storage loop and the central hot water tank perform cold and heat exchange through the first heat exchanger of the cold storage to reduce the exhaust temperature of the cold storage loop; if the intake temperature of the cold storage loop is lower than the second preset value, the cold storage loop and the central cold water tank perform cold and heat exchange through the second heat exchanger of the cold storage to increase the intake temperature of the cold storage loop; if the exhaust temperature of the workshop air-conditioning is higher than a third preset value, The workshop air-conditioning loop and the central hot water tank perform cold and heat exchange through the first heat exchanger of the workshop air-conditioning to reduce the exhaust temperature of the workshop air-conditioning; if the intake temperature of the workshop air-conditioning is lower than the fourth preset value, the workshop air-conditioning loop and the central cold water tank perform cold and heat exchange through the second heat exchanger of the workshop air-conditioning to increase the intake temperature of the workshop air-conditioning; if the water temperature of the production hot water tank in the production hot water loop is lower than the fourth preset value, the production hot water loop is connected to the central hot water tank for cold and heat exchange to increase the water temperature in the production hot water loop; the production hot water loop is connected to the central cold water tank of the cold and heat scheduling loop to recover the cooling water in the production hot water loop; if the water temperature of the roastery cold water tank in the roastery loop is lower than the fifth preset value, the roastery loop is connected to the central cold water tank for cold and heat exchange to increase the water temperature of the roastery cold water tank in the roastery loop; if the water temperature of the roastery hot water tank in the roastery loop is higher than the sixth preset value, the roastery loop is connected to the central hot water tank for cold and heat exchange to store excess heat in the roastery loop.

[0015] Optionally, when the water level in the production hot water tank is lower than a set water level, the central hot water tank replenishes water to the production hot water tank.

[0016] In a third aspect, an embodiment of the present application provides a computer device, comprising: a memory and a processor, wherein the memory and the processor are communicatively connected to each other, computer instructions are stored in the memory, and the processor executes the above-mentioned control method for comprehensive utilization of cold and heat energy by executing the computer instructions.

[0017] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, on which computer instructions are stored, and the computer instructions are used to enable a computer to execute the above-mentioned control method for comprehensive utilization of cold and heat energy.

[0018] In a fifth aspect, an embodiment of the present application provides a computer program product, including computer instructions, which are used to enable a computer to execute the above-mentioned control method for comprehensive utilization of cold and heat energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art 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.

[0020] Figure 1 A schematic diagram of a production system for comprehensive utilization of cold and heat energy in a cured meat processing plant provided in an embodiment of the present application;

[0021] Figure 2 A schematic diagram of the structure of the cold storage loop provided in the embodiment of the present application;

[0022] Figure 3 A schematic diagram of the structure of a workshop air conditioning loop provided in an embodiment of the present application;

[0023] Figure 4 A schematic diagram of the structure of a production hot water loop provided in an embodiment of the present application;

[0024] Figure 5 A schematic diagram of the structure of a baking chamber loop provided in an embodiment of the present application;

[0025] Figure 6 A schematic diagram of the structure of the cooling and heating scheduling loop provided in an embodiment of the present application;

[0026] Figure 7A schematic diagram of the specific structure of a production system for comprehensive utilization of cold and heat energy in a cured meat processing plant provided in an embodiment of the present application;

[0027] Figure 8 A schematic diagram of a control method for comprehensive utilization of cold and heat energy in a cured meat processing plant provided in an embodiment of the present application;

[0028] Fig. 9 It is a structural diagram of a computer device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0029] 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 creative work are within the scope of protection of the present application.

[0030] For the cured meat processing plant, the refrigeration load of the workshop air conditioning loop and the cold storage loop is relatively large. The refrigeration load of the workshop air conditioning loop includes the air conditioning load and the low-temperature workshop load. The refrigeration load of the workshop air conditioning loop is concentrated during the daytime working hours. The peak load period of the whole year is in summer, and there is basically no cold load in winter. The refrigeration load of the cold storage loop needs to exist 24 hours a day all year round. The peak load period of the whole year is in summer, and there will also be partial load in winter. Hot water for production is basically used all year round, and the heat use in winter and summer is not much different. In addition, the baking room loop is in operation all year round, and the heat and cold use are irregular every day. The heat pump host device in the baking room loop will intermittently provide hot water and cold water. At the same time, the heat pump host device is not enough to provide hot water for production. Usually, in order to meet the needs of process production, there will be excess cold water that cannot be used every day and is directly discharged, resulting in a waste of cold source. In the related art, the production system of the cured meat processing plant has poor integration, and cannot make full use of the excess heat and cold in each module of the system, which is not conducive to saving investment costs and operation and maintenance costs.

[0031] Please refer to Figure 1 , Figure 1 This is a schematic diagram of a production system for comprehensive utilization of cold and heat energy in a cured meat processing plant provided in an embodiment of the present application. Figure 1As shown, an embodiment of the present application provides a production system for comprehensive utilization of cold and heat energy in a cured meat processing plant, including a cold storage loop, a workshop air-conditioning loop, a hot water loop for production, a baking room loop, a cold and heat scheduling loop, a first heat exchanger for the cold storage, a second heat exchanger for the cold storage, a first heat exchanger for the workshop air-conditioning, and a second heat exchanger for the workshop air-conditioning. The cold and heat scheduling loop is used to collect and distribute excess cold and heat in the production system, wherein: the cold storage loop and the central hot water tank of the cold and heat scheduling loop perform cold and heat exchange through the first heat exchanger of the cold storage to reduce the exhaust temperature of the cold storage loop; the cold storage loop and the central cold water tank of the cold and heat scheduling loop perform cold and heat exchange through the second heat exchanger of the cold storage to increase the intake temperature of the cold storage loop; the workshop air-conditioning loop and the central hot water tank of the cold and heat scheduling loop perform cold and heat exchange through the second heat exchanger of the cold storage to increase the intake temperature of the cold storage loop The first heat exchanger of the workshop air conditioner is used for heat exchange to reduce the exhaust temperature of the workshop air conditioner; the workshop air conditioning loop and the central cold water tank of the cold and heat scheduling loop are used for heat exchange through the second heat exchanger of the workshop air conditioner to increase the intake temperature of the workshop air conditioner; the production hot water loop is connected to the central hot water tank of the cold and heat scheduling loop for heat exchange to increase the water temperature in the production hot water loop; the production hot water loop is connected to the central cold water tank of the cold and heat scheduling loop to recover the cooling water in the production hot water loop; the bakery loop is connected to the central cold water tank of the cold and heat scheduling loop for heat exchange to increase the water temperature of the bakery cold water tank in the bakery loop; the bakery loop is connected to the central hot water tank of the cold and heat scheduling loop for heat exchange to store excess heat in the bakery loop.

[0032] The production system for comprehensive utilization of cold and heat energy in a cured meat processing factory provided in the embodiment of the present application comprehensively considers the cold and heat demand of each cold and heat source module in the production system, so that excess cold and heat can be complemented in each module, thereby improving the energy utilization efficiency of the production system and reducing operating energy consumption.

[0033] Specifically, if the exhaust temperature of the cold storage loop is higher than the temperature of the central hot water tank and higher than the first preset value, the cold storage loop exchanges heat and cold with the central hot water tank through the first heat exchanger of the cold storage. If the suction temperature of the cold storage loop is lower than the temperature of the central cold water tank and lower than the second preset value, the cold storage loop exchanges heat and cold with the central cold water tank through the second heat exchanger of the cold storage, and stores the excess cold of the cold storage loop in the central cold water tank. If the exhaust temperature of the workshop air conditioner is higher than the temperature of the central hot water tank and higher than the third preset value, the workshop air conditioner loop exchanges heat and cold with the central hot water tank through the first heat exchanger of the workshop air conditioner to reduce the exhaust temperature of the workshop air conditioner. If the suction temperature of the workshop air conditioner is lower than the temperature of the central cold water tank and lower than the fourth preset value, the workshop air conditioner loop exchanges heat and cold with the central cold water tank through the second heat exchanger of the workshop air conditioner to increase the suction temperature of the workshop air conditioner. If the water temperature of the production hot water tank of the production hot water loop is lower than the set temperature of the central hot water tank and lower than the fourth preset value, the production hot water loop is connected to the central hot water tank for cold and heat exchange, that is, cold and hot water replacement, to increase the water temperature of the production hot water tank. If the water temperature of the roastery cold water tank in the roastery loop is lower than the central cold water tank and lower than the fifth preset value, the roastery loop is connected to the central cold water tank for cold and heat exchange. If the water temperature of the roastery hot water tank of the roastery loop is higher than the temperature of the central hot water tank and higher than the sixth preset value, the roastery loop is connected to the central hot water tank for cold and heat exchange to reduce the water temperature of the roastery hot water tank.

[0034] In some embodiments, the first heat exchanger of the cold storage is arranged between the compressor and the condenser on the cold storage loop, and the second heat exchanger of the cold storage is arranged between the liquid storage and the expansion valve on the cold storage loop.

[0035] Please refer to Figure 2 , Figure 2 This is a schematic diagram of the structure of the cold storage loop provided in the embodiment of the present application. Figure 2As shown, the cold storage loop is provided with a compressor, a first heat exchanger for the cold storage, a first water pump for the cold storage, a first water solenoid valve for the cold storage, a condenser, a liquid reservoir, a second heat exchanger for the cold storage, a second water pump for the cold storage, a second water solenoid valve for the cold storage, an expansion valve, an evaporator, a cold storage exhaust pipeline, a cold storage suction pipeline, and supporting valves. A first heat exchanger for the cold storage is provided between the compressor and the condenser on the cold storage loop, which may be a plate heat exchanger, and the first heat exchanger for the cold storage is connected to the central hot water tank through the first water pump for the cold storage, the first water solenoid valve for the cold storage, and a water pipe. The cold storage loop can work alone to meet the temperature conditions of the cold storage operation. A temperature sensor is provided on the cold storage exhaust pipeline to detect the exhaust temperature of the cold storage. When it is detected that the exhaust temperature of the cold storage exceeds the temperature of the central hot water tank and is higher than the first preset value, the first water solenoid valve for the cold storage and the first water pump for the cold storage are opened to circulate, and the exhaust temperature of the cold storage is reduced to the preset temperature value. A second heat exchanger for the cold storage is provided between the liquid reservoir and the expansion valve on the cold storage loop, which may be a plate heat exchanger. The second heat exchanger of the cold storage is connected to the central cold water tank through the second water pump of the cold storage, the second water solenoid valve of the cold storage and the water pipe. A temperature sensor is provided on the cold storage suction pipeline, which can be the outlet of the cold storage liquid reservoir, to detect the suction temperature of the cold storage. When it is detected that the suction temperature of the cold storage is lower than the temperature of the central cold water tank and lower than the second preset value, the second water solenoid valve of the cold storage and the second water pump of the cold storage are opened to increase the suction temperature of the cold storage to the preset temperature value. After the above two heat exchange and cooling, the exhaust temperature in the cold storage loop is effectively avoided to be too high and the suction temperature is too low, which can improve the refrigeration capacity per unit energy consumption in the cold storage loop. At the same time, the excess heat can be stored in the central hot water tank.

[0036] In some embodiments, the first heat exchanger of the workshop air conditioner is arranged between the compressor and the condenser on the workshop air conditioner loop, and the second heat exchanger of the workshop air conditioner is arranged between the liquid storage tank and the expansion valve on the workshop air conditioner loop.

[0037] In some embodiments, the workshop air conditioning loop also includes an air conditioning hot water tank and an air conditioning cold water tank. The air conditioning hot water tank is arranged between the first heat exchanger of the workshop air conditioning and the central hot water tank, and the air conditioning cold water tank is arranged between the second heat exchanger of the workshop air conditioning and the central cold water tank.

[0038] Please refer to Figure 3 , Figure 3 This is a schematic diagram of the structure of the workshop air conditioning loop provided in the embodiment of the present application. Figure 3As shown, the workshop air conditioning loop mainly adopts a large screw unit. The workshop air conditioning loop is equipped with a compressor, a workshop air conditioning first heat exchanger, a workshop air conditioning first water pump, a workshop air conditioning first water solenoid valve, a workshop air conditioning condenser, an air conditioning hot water tank, a liquid storage device, a workshop air conditioning second heat exchanger, a workshop air conditioning second water pump, a workshop air conditioning second water solenoid valve, an expansion valve, an evaporator, an air conditioning cold water tank, a workshop air conditioning exhaust pipeline, a workshop air conditioning suction pipeline and supporting valves. The workshop air conditioning loop can be operated independently to produce cold water for workshop refrigeration, and the cold water is stored in the air conditioning cold water tank and the heat is stored in the air conditioning hot water tank. The workshop air conditioning first heat exchanger is provided between the compressor and the condenser on the workshop air conditioning loop, which can be a plate heat exchanger. The workshop air conditioning loop is connected to the central hot water tank through the workshop air conditioning first water pump, the workshop air conditioning first water solenoid valve and a water pipe. A temperature sensor is provided on the workshop air conditioning exhaust pipeline to detect the exhaust temperature of the workshop air conditioning. When it is detected that the exhaust temperature of the workshop air conditioner exceeds the third preset value, the first water solenoid valve of the workshop air conditioner and the first water pump of the workshop air conditioner are opened to circulate, and the exhaust temperature of the workshop air conditioner is reduced to the set temperature value. A second heat exchanger of the workshop air conditioner is provided between the liquid storage device and the expansion valve on the workshop air conditioner loop. The workshop air conditioner loop is connected to the central cold water tank through the second water solenoid valve of the workshop air conditioner, the second water pump of the workshop air conditioner and the water pipe. On the workshop air conditioner suction pipeline, for example, a temperature sensor is provided at the outlet of the liquid storage device to detect the suction temperature of the workshop air conditioner. When it is detected that the suction temperature of the workshop air conditioner exceeds the set temperature value, the second water solenoid valve of the workshop air conditioner and the second water pump of the workshop air conditioner are opened to circulate, and the temperature in the suction pipeline of the workshop air conditioner is increased to the set temperature value, which can be used to overcool the refrigerant in the cold storage. After the above two heat exchanges, the exhaust temperature in the workshop air conditioner loop can be effectively avoided from being too high and the suction temperature from being too low, and the refrigeration capacity per unit energy consumption of the screw unit system is improved.

[0039] Specifically, the air-conditioning hot water tank is connected to the central hot water tank through the first water pump of the workshop air-conditioning, the first water solenoid valve of the workshop air-conditioning, the supporting water pipes and valves. When the water temperature of the air-conditioning hot water tank is higher than the water temperature of the central hot water tank and higher than the third preset value, the first water pump of the workshop air-conditioning and the first water solenoid valve of the workshop air-conditioning are turned on, so that the air-conditioning hot water tank and the central hot water tank are exchanged with each other until the water temperature of the air-conditioning hot water tank and the central hot water tank are equal, and then the first water pump of the workshop air-conditioning and the first water solenoid valve of the workshop air-conditioning are closed. If the water temperature of the air-conditioning hot water tank (i.e., the exhaust temperature of the workshop air-conditioning) is less than or equal to the water temperature of the central hot water tank, the air-conditioning hot water tank and the central hot water tank do not exchange heat, thereby keeping the water temperature of the air-conditioning hot water tank always less than or equal to the water temperature of the central hot water tank, which can not only store excess heat in the central hot water tank, but also improve the cooling efficiency of the workshop air-conditioning.

[0040] The air conditioning cold water tank is connected to the central cold water tank through the second water solenoid valve of the workshop air conditioning, the second water pump of the workshop air conditioning, the supporting water pipes and valves. When the water temperature of the air conditioning cold water tank (i.e., the air intake temperature of the workshop air conditioning) is higher than the water temperature of the central cold water tank and higher than the fourth preset value, the second water solenoid valve of the workshop air conditioning and the second water pump of the workshop air conditioning will make the air conditioning cold water tank and the central cold water tank exchange heat until the water temperature of the air conditioning cold water tank and the central cold water tank are equal, and then close the second water solenoid valve of the workshop air conditioning and the second water pump of the workshop air conditioning. If the water temperature of the air conditioning cold water tank is less than or equal to the water temperature of the central cold water tank, no heat exchange will be performed, thereby keeping the water temperature of the air conditioning cold water tank always less than or equal to the water temperature of the central cold water tank, so as to achieve the purpose of delivering coldness to the central cold water tank.

[0041] The air conditioning hot water tank is connected to the condenser on the workshop air conditioning loop to absorb the excess heat dissipation of the condenser. The air conditioning cold water tank is connected to the evaporator on the workshop air conditioning loop to transfer the excess cooling capacity of the workshop air conditioning loop to the air conditioning cold water tank through the evaporator.

[0042] In addition, if the evaporator in the cold storage loop is frosted and needs hot water to defrost, the hot water in the air-conditioning hot water tank can be used to defrost, thereby saving the increased energy consumption caused by electric defrosting or electric heating wire heating water defrosting.

[0043] In some embodiments, the production hot water loop includes a production hot water tank for storing and supplying hot water required by the production workshop. The production hot water tank is connected to the central hot water tank for heat exchange to increase the water temperature of the production hot water tank.

[0044] Please refer to Figure 4 , Figure 4 This is a schematic diagram of the structure of the production hot water loop provided in the embodiment of the present application. Figure 4As shown, the production hot water loop specifically includes a heat pump host device, a hot water pump, a production hot water tank, a hot water pump, a first water solenoid valve for production, a cold water pump, a second water solenoid valve for production, a hot water supply solenoid valve and water pipe valves. According to production requirements, hot water supply solenoid valves are respectively equipped in each production workshop, and the hot water in the production hot water tank is used in various links of production and processing through the opening of the hot water supply solenoid valve. The heat pump host device includes a shell and tube heat exchanger and a heat pump unit. The heat pump host device and the production hot water tank are connected by a hot water pump, a hot water pipeline and valves to form a hot water circuit. The heat pump host device can produce hot water and cold water to meet the production hot water demand. Among them, the produced hot water is supplied to the production hot water tank through the hot water pump to increase the water temperature of the production hot water tank, and the produced cold water is stored in the central cold water tank through the cold water pump, the second water solenoid valve for production, the cold water pipeline and valves. During the period of concentrated use of hot water for production, it is necessary to determine in advance whether the water temperature of the hot water tank for production meets the temperature requirements. If it does not meet the temperature requirements, the heat pump host device needs to be started to produce hot and cold water.

[0045] Among them, the production hot water tank and the central hot water tank are connected through a hot water pump, a first water solenoid valve for production, a hot water pipeline and valve components. When the water temperature of the production hot water tank is lower than the water temperature of the central hot water tank and lower than the fourth preset value, the first water solenoid valve for production and the hot water pump are turned on to exchange hot water between the production hot water tank and the central hot water tank until the water temperatures of the production hot water tank and the central hot water tank are equal. If the water temperature of the production hot water tank is greater than or equal to the water temperature of the central hot water tank, no hot and cold exchange is performed, thereby maintaining the water temperature of the production hot water tank greater than or equal to the water temperature of the central hot water tank. As the hot water in the production hot water tank is used for production, hot water is preferentially called from the central hot water tank to the production hot water tank to maintain the water level of the production hot water tank. The water level in the central hot water tank is replenished by newly entered tap water.

[0046] In some embodiments, the bakery loop also includes a bakery hot water tank and a bakery cold water tank. The bakery hot water tank and the central hot water tank exchange heat through a bakery water heat exchange device to reduce the water temperature in the bakery hot water tank; the bakery cold water tank is connected to the central cold water tank for heat exchange to increase the water temperature in the bakery cold water tank.

[0047] The bakery hot water tank is connected to the central hot water tank through a bakery main hot water pump, a bakery water heat exchange device, a bakery sub-heat water pump, water pipes and valves. During the operation of the bakery, if the water temperature in the bakery hot water tank is higher than the water temperature of the central hot water tank and higher than the sixth preset value, the bakery main hot water pump and one or more bakery sub-heat water pumps are turned on to make the water temperature of the bakery hot water tank reach the set temperature value, and then the multiple bakery sub-heat water pumps and the bakery main hot water pump are turned off in sequence, so that the excess heat in the bakery drying process is transferred to the central hot water tank.

[0048] The bakery cold water tank is connected to the central cold water tank through a bakery cold water pump, a bakery water solenoid valve, a water pipe and a valve. During the operation of the bakery, if the water temperature in the bakery cold water tank is lower than the water temperature of the central cold water tank and lower than the fifth preset value, the corresponding one or more bakery water solenoid valves are opened and the bakery cold water pump is started, so that the water temperature of the corresponding bakery cold water tank is equal to the set water temperature of the bakery cold water tank, so that the excess cold in the bakery drying process is transferred to the central cold water tank.

[0049] Please refer to Figure 5 , Figure 5 This is a schematic diagram of the structure of the baking room loop provided in the embodiment of the present application. Figure 5 As shown in the figure, a finished cured meat project with a daily production capacity of 60 tons requires 7 sets of hot and cold water heat pump bakeries. The bakery loop mainly includes the heat pump host device, bakery hot water tank, bakery cold water tank, cured meat drying room, bakery hot water pump, bakery cooling water pump, bakery hot water supply pump, bakery cold water supply pump, bakery total hot water pump, bakery hot water pump, bakery cold water pump, bakery water solenoid valve, hot and cold water pipelines and valves. Among them, the heat pump host device is composed of a compressor, a shell and tube condenser, a shell and tube evaporator, an expansion valve, a solenoid valve and matching copper pipe valves. The heat pump host device is used to produce hot and cold water. The produced hot water and cold water are stored in the bakery hot water tank and the bakery cold water tank respectively through the bakery hot water pump and the bakery cooling water pump. The cured meat drying room is equipped with a hot water heat exchanger for the baking room and a cold water heat exchanger for the baking room, wherein the hot water heat exchanger for the baking room is connected to the fan through an air duct, the hot water supply pump for the baking room draws hot water from the hot water tank for the baking room and sends it to the hot water heat exchanger, the fan drives the air medium in the cured meat drying room to penetrate the hot water heat exchanger, and the air medium is heated to the set temperature for drying cured meat products. The cold water heat exchanger is connected to the fan through an air duct, the cold water supply pump for the baking room draws cold water from the cold water tank for the baking room and sends it to the cold water heat exchanger, the fan drives the high-humidity air medium in the cured meat drying room to penetrate the cold water heat exchanger, and the high-humidity air medium is dehumidified to the set humidity value to reduce the moisture of the dried cured meat products.

[0050] In the actual production process, the bakery loop is the part with the largest amount of concentrated application of cold and heat in the production system provided in the embodiment of the present application. There are large changes in the demand for cold and heat during the processing of cured meat products. For example, the total processing time of a certain Cantonese cured meat is about 45 hours, and the processing of the cured meat product mainly goes through 4 processes: hot sausage stage (3-4 hours), shaping stage (5-6 hours), rapid dehumidification stage (10-11 hours) and slow drying stage (22-24 hours). Among them, the hot sausage stage mainly raises the sausage that has just entered the oven from about 10°C to 50-55°C. This stage requires a large amount of heat to supply the bakery loop, and the surplus cold will be stored in the bakery cold water tank. When the water temperature of the bakery cold water tank is lower than the water temperature of the central cold water tank and lower than the fifth preset value, the bakery water heat exchange device is turned on, and the bakery cold water pump is started, so that cold water is replaced between the central cold water tank and the bakery cold water tank. The shaping stage needs to maintain constant temperature and humidity conditions. In this stage, hot water heating evaporation and cold water condensation dehumidification are required to maintain the temperature and humidity in the cured meat drying room for a period of time, so that the sausage gradually changes from a loose state to a rubber strip. At the same time, the sausage will ferment and color to form a specific flavor at this stage. After the sausage is shaped, it immediately enters the rapid dehumidification stage. In this stage, the moisture of the sausage needs to be quickly reduced to ensure the color and shape of the sausage. Therefore, a large amount of cold water is required to condense the moisture evaporated from the sausage to the baking room loop. Since the sausage is a high-temperature heat carrier at this stage, there will be excess heat, but insufficient cold water, which will cause the cold water tank in the baking room to heat up. The heat pump host device is started to produce hot and cold water, and the cold water is supplied for dehumidification and the heat is stored in the hot water tank. When the temperature of the baking room hot water tank is higher than the water temperature of the central hot water tank and higher than the sixth preset value, the baking room main hot water pump and the baking room sub-hot water pump are started, so that the baking room hot water tank and the central hot water tank are replaced with hot water, and the excess heat is stored in the central hot water tank. After the transition to the slow drying stage, 85-90% of the total dehumidification capacity of the sausage has been removed, and the subsequent heat and cooling requirements are significantly reduced, about 1 / 3 of the aforementioned processing. The heat pump host device at this stage can be used to support the baking room equipment that has just put in the wet sausage.

[0051] In some embodiments, the heat and cold scheduling loop also includes a heat and cold integrated energy-saving control module, which is respectively connected to the central hot water tank and the central cold water tank, and is used to control the heat and cold exchange, water level and water temperature of the central hot water tank and the central cold water tank.

[0052] Please refer to Figure 6 , Figure 6 This is a schematic diagram of the structure of the cooling and heating scheduling loop provided in the embodiment of the present application. Figure 6As shown, the cold and heat scheduling loop specifically includes a cold and heat comprehensive energy-saving control module, a water supply solenoid valve, a water level gauge, a water temperature gauge, a central cold water tank, a central hot water tank, a cooling tower, water pipes and valves. Among them, the cold and heat scheduling loop is mainly used to collect and distribute the excess cold and heat during the operation of the cold storage loop, the workshop air conditioning loop, the production hot water loop and the baking room loop, and store the excess cold and heat in the central cold water tank and the central hot water tank respectively. The cold and heat comprehensive energy-saving control module receives the real-time temperature parameters transmitted by the cold storage loop communication module, the workshop air conditioning loop communication module, the production hot water loop communication module and the baking room loop communication module, thereby controlling the cold and heat exchange process between the central cold water tank or the central hot water tank and the cold storage loop, the workshop air conditioning loop, the production hot water loop or the baking room loop, so as to reduce the startup time of the units of the corresponding loops and achieve the purpose of saving electric energy. If the water level gauge detects that the water level of the central cold water tank and the central hot water tank is lower than the set height value, the cold and hot integrated energy-saving control module will control the opening of the water replenishment solenoid valve to replenish water to maintain the water level of the central cold water tank and the central hot water tank. If the water temperature of the central cold water tank and the central hot water tank is detected to be lower than the set temperature through the water thermometer, and it cannot exchange heat with other water tanks, the cold and hot integrated energy-saving control module will control the start of the cooling tower to dissipate heat. Through the above process, the control of heat exchange, water level and water temperature of the central hot water tank and the central cold water tank is realized.

[0053] Please refer to Figure 7 , Figure 7 A schematic diagram of the specific structure of the production system for comprehensive utilization of cold and heat energy in a cured meat processing factory provided in an embodiment of the present application.

[0054] Correspondingly, the embodiment of the present application also provides an embodiment of a control method for the comprehensive utilization of cold and heat energy in a cured meat processing plant. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although the logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0055] Please refer to Figure 8 , Figure 8 Schematic diagram of the control method for comprehensive utilization of cold and heat energy in a cured meat processing plant provided in the embodiment of the present application. Figure 8 As shown, the control method includes the following steps:

[0056] Step S1, start the cold storage loop, workshop air conditioning loop, production hot water loop, baking room loop, and cold and heat scheduling loop.

[0057] Step S3, if the exhaust temperature of the cold storage loop is higher than the first preset value, the cold storage loop and the central hot water tank perform heat exchange through the first heat exchanger of the cold storage to reduce the exhaust temperature of the cold storage loop; if the intake temperature of the cold storage loop is lower than the second preset value, the cold storage loop and the central cold water tank perform heat exchange through the second heat exchanger of the cold storage to increase the intake temperature of the cold storage loop.

[0058] Step S5, if the exhaust temperature of the workshop air conditioner is higher than the third preset value, the workshop air conditioner loop and the central hot water tank exchange heat and cold through the first heat exchanger of the workshop air conditioner to reduce the exhaust temperature of the workshop air conditioner; if the intake temperature of the workshop air conditioner is lower than the fourth preset value, the workshop air conditioner loop and the central cold water tank exchange heat and cold through the second heat exchanger of the workshop air conditioner to increase the intake temperature of the workshop air conditioner.

[0059] Step S7, if the water temperature of the production hot water tank in the production hot water loop is lower than the fourth preset value, the production hot water loop is connected to the central hot water tank for heat exchange to increase the water temperature in the production hot water loop; the production hot water loop is connected to the central cold water tank of the cold and heat scheduling loop to recover the cooling water in the production hot water loop.

[0060] Step S9, if the water temperature of the bakery cold water tank in the bakery loop is lower than the fifth preset value, the bakery loop is connected to the central cold water tank for cold and heat exchange to increase the water temperature of the bakery cold water tank in the bakery loop; if the water temperature of the bakery hot water tank in the bakery loop is higher than the sixth preset value, the bakery loop is connected to the central hot water tank for cold and heat exchange to store excess heat in the bakery loop.

[0061] The further functional description of each of the above modules and units is the same as that of the above corresponding embodiments and will not be repeated here.

[0062] See also Fig. 9 , Fig. 9 is a schematic diagram of the structure of a computer device provided in an embodiment of the present application, such as Fig. 9As shown, the computer device includes: one or more processors 10, a memory 20, and interfaces for connecting various components, including high-speed interfaces and low-speed interfaces. Various components are connected to each other using different buses for communication, and can be installed on a common mainboard or installed in other ways as needed. The processor can process the instructions executed in the computer device, including instructions stored in or on the memory to display the graphical information of the GUI on an external input / output device (such as, a display device coupled to the interface). In some optional embodiments, if necessary, multiple processors and / or multiple buses can be used together with multiple memories and multiple memories. Similarly, multiple computer devices can be connected, and each device provides some necessary operations (for example, as a server array, a group of blade servers, or a multi-processor system). Fig. 9 A processor 10 is taken as an example.

[0063] The processor 10 may be a central processing unit, a network processor or a combination thereof. The processor 10 may further include a hardware chip. The hardware chip may be a dedicated integrated circuit, a programmable logic device or a combination thereof. The programmable logic device may be a complex programmable logic device, a field programmable gate array, a general purpose array logic or any combination thereof.

[0064] The memory 20 stores instructions executable by at least one processor 10, so that the at least one processor 10 executes the method shown in the above embodiment.

[0065] The memory 20 may include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application required for at least one function; the data storage area may store data created according to the use of the computer device, etc. In addition, the memory 20 may include a high-speed random access memory, and may also include a non-transient memory, such as at least one disk storage device, a flash memory device, or other non-transient solid-state storage device. In some optional embodiments, the memory 20 may optionally include a memory remotely arranged relative to the processor 10, and these remote memories may be connected to the computer device via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0066] The memory 20 may include a volatile memory, such as a random access memory; the memory may also include a non-volatile memory, such as a flash memory, a hard disk or a solid state drive; the memory 20 may also include a combination of the above types of memory. The computer device also includes a communication interface 30 for the computer device to communicate with other devices or a communication network.

[0067] The embodiment of the present application also provides a computer-readable storage medium. The above method according to the embodiment of the present application can be implemented in hardware, firmware, or can be implemented as a computer code that can be recorded in a storage medium, or can be implemented as a computer code that is originally stored in a remote storage medium or a non-temporary machine-readable storage medium and will be stored in a local storage medium through a network download, so that the method described herein can be stored in such software processing on a storage medium using a general-purpose computer, a dedicated processor, or programmable or dedicated hardware. Among them, the storage medium can be a magnetic disk, an optical disk, a read-only storage memory, a random access memory, a flash memory, a hard disk or a solid-state hard disk, etc.; further, the storage medium can also include a combination of the above types of memories. It can be understood that a computer, a processor, a microprocessor controller, or programmable hardware includes a storage component that can store or receive software or computer code. When the software or computer code is accessed and executed by a computer, a processor, or hardware, the method shown in the above embodiment is implemented.

[0068] The embodiment of the present application provides a computer program product, which includes computer instructions, which are stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the computer device executes the method of any embodiment of the present application.

[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.

[0070] The systems described in the above embodiments may be implemented by computer chips or entities, or by products with certain functions. A typical implementation device is a computer. Specifically, the computer may be, for example, a personal computer, a laptop computer, a cellular phone, a camera phone, a smart phone, a personal digital assistant, a media player, a navigation device, an email device, a game console, a tablet computer, a wearable device, or a combination of any of these devices.

[0071] For the convenience of description, the above device is described in various units according to their functions. Of course, when implementing the present application, the functions of each unit can be implemented in the same or multiple software and / or hardware.

[0072] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented in one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that include computer-usable program code.

[0073] The present application is described with reference to the flowcharts and / or block diagrams of the methods, systems, and computer program products according to the embodiments of the present application. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of the processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0074] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture including an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0075] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0076] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, commodity or device including the element.

[0077] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0078] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

[0079] Although the embodiments of the present application have been 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 production system for comprehensive utilization of cold and heat energy, characterized in that: The production system includes a cold storage loop, a workshop air conditioning loop, a production hot water loop, a baking room loop, a cold and heat scheduling loop, a first heat exchanger of the cold storage, a second heat exchanger of the cold storage, a first heat exchanger of the workshop air conditioning, and a second heat exchanger of the workshop air conditioning. The cold and heat scheduling loop is used to collect and distribute excess cold and heat in the production system, wherein: The central hot water tank of the cold storage loop and the cold and heat scheduling loop exchanges heat through the first heat exchanger of the cold storage to reduce the exhaust temperature of the cold storage loop; the central cold water tank of the cold storage loop and the cold and heat scheduling loop exchanges heat through the second heat exchanger of the cold storage to increase the suction temperature of the cold storage loop; The central hot water tank of the workshop air conditioning loop and the cold and heat scheduling loop exchanges heat through the first heat exchanger of the workshop air conditioning to reduce the exhaust temperature of the workshop air conditioning; the central cold water tank of the workshop air conditioning loop and the cold and heat scheduling loop exchanges heat through the second heat exchanger of the workshop air conditioning to increase the suction temperature of the workshop air conditioning; The production hot water loop is connected to the central hot water tank of the cold and heat scheduling loop for cold and heat exchange to increase the water temperature in the production hot water loop; the production hot water loop is connected to the central cold water tank of the cold and heat scheduling loop to recover the cooling water in the production hot water loop; The bakery loop is connected to the central cold water tank of the cold and heat scheduling loop for heat exchange to store excess cold in the bakery loop; the bakery loop is connected to the central hot water tank of the cold and heat scheduling loop for heat exchange to store excess heat in the bakery loop.

2. The production system according to claim 1, characterized in that: The first heat exchanger of the cold storage is arranged between the compressor and the condenser on the cold storage loop, and the second heat exchanger of the cold storage is arranged between the liquid storage and the expansion valve on the cold storage loop.

3. The production system according to claim 1, characterized in that: The first heat exchanger of the workshop air conditioner is arranged between the compressor and the condenser on the workshop air conditioner loop, and the second heat exchanger of the workshop air conditioner is arranged between the liquid storage device and the expansion valve on the workshop air conditioner loop.

4. The production system according to claim 3, characterized in that: The workshop air conditioning loop also includes an air conditioning hot water tank and an air conditioning cold water tank. The air conditioning hot water tank is arranged between the first heat exchanger of the workshop air conditioning and the central hot water tank, and the air conditioning cold water tank is arranged between the second heat exchanger of the workshop air conditioning and the central cold water tank.

5. The production system according to claim 1, characterized in that: The production hot water loop includes a production hot water tank, which is used to store and supply the hot water required by the production workshop. The production hot water tank is connected to the central hot water tank for heat exchange to increase the water temperature of the production hot water tank.

6. The production system according to claim 5, characterized in that: The production hot water loop also includes a heat pump main unit, which is connected to the production hot water tank to increase the water temperature of the production hot water tank; the heat pump main unit is connected to the central cold water tank to recover the cooling water in the production hot water loop.

7. The production system according to claim 1, characterized in that: The bakery loop also includes a bakery hot water tank and a bakery cold water tank. The bakery hot water tank and the central hot water tank exchange heat through a bakery water heat exchanger to reduce the water temperature in the bakery hot water tank; the bakery cold water tank and the central cold water tank are connected to exchange heat to increase the water temperature in the bakery cold water tank.

8. The production system according to claim 1, characterized in that: The cold and heat scheduling loop also includes a cold and heat integrated energy-saving control module, which is connected to the central hot water tank and the central cold water tank respectively, and is used to monitor and control the cold and heat exchange, water level and water temperature of the central hot water tank and the central cold water tank.

9. A control method for comprehensive utilization of cold and heat energy, the control method is implemented based on the production system for comprehensive utilization of cold and heat energy according to any one of claims 1 to 8, characterized in that: The production system includes a cold storage loop, a workshop air conditioning loop, a production hot water loop, a baking room loop, a cold and heat scheduling loop, a first heat exchanger of the cold storage, a second heat exchanger of the cold storage, a first heat exchanger of the workshop air conditioning, and a second heat exchanger of the workshop air conditioning. The control method includes the following steps: Open the cold storage loop, workshop air conditioning loop, production hot water loop, baking room loop, and cold and heat scheduling loop; If the exhaust temperature of the cold storage loop is higher than the first preset value, the cold storage loop and the central hot water tank of the cold and heat scheduling loop perform cold and heat exchange through the first heat exchanger of the cold storage to reduce the exhaust temperature of the cold storage loop; if the suction temperature of the cold storage loop is lower than the second preset value, the cold storage loop and the central cold water tank of the cold and heat scheduling loop perform cold and heat exchange through the second heat exchanger of the cold storage to increase the suction temperature of the cold storage loop; If the exhaust temperature of the workshop air conditioner is higher than the third preset value, the workshop air conditioner loop and the central hot water tank of the cold and heat scheduling loop perform cold and heat exchange through the first heat exchanger of the workshop air conditioner to reduce the exhaust temperature of the workshop air conditioner; if the suction temperature of the workshop air conditioner is lower than the fourth preset value, the workshop air conditioner loop and the central cold water tank of the cold and heat scheduling loop perform cold and heat exchange through the second heat exchanger of the workshop air conditioner to increase the suction temperature of the workshop air conditioner; If the water temperature of the production hot water tank in the production hot water loop is lower than the fourth preset value, the production hot water loop is connected to the central hot water tank of the cold and heat scheduling loop for cold and heat exchange to increase the water temperature in the production hot water loop; the production hot water loop is connected to the central cold water tank of the cold and heat scheduling loop to recover the cooling water in the production hot water loop; If the water temperature of the bakery cold water tank in the bakery loop is lower than the fifth preset value, the bakery loop is connected to the central cold water tank of the cold and heat scheduling loop for cold and heat exchange to increase the water temperature of the bakery cold water tank in the bakery loop; if the water temperature of the bakery hot water tank in the bakery loop is higher than the sixth preset value, the bakery loop is connected to the central hot water tank of the cold and heat scheduling loop for cold and heat exchange to store excess heat in the bakery loop.

10. The control method according to claim 9, characterized in that: When the water level in the production hot water tank is lower than the set water level, water is added to the production hot water tank through the central hot water tank.

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