Hot water optimization method, device, equipment and medium of process system

Abstract

The embodiment of the invention provides a hot water optimization method and device for a process system, equipment and a medium, and aims to solve the problem that the quality and stability of hot water supply cannot be ensured in the related technology. In the embodiment of the invention, the process system comprises a heat pump, heat determining equipment and electronic equipment, the heat determining equipment is arranged in a water flow pipeline, and the electronic equipment obtains heat sent by the heat determining equipment; determining a target difference value between the heat and target heat stored by the heat determining equipment in advance; determining a target heat pump adjustment frequency corresponding to the target difference value according to a pre-stored corresponding relationship between the difference value and the heat pump adjustment frequency; and adjusting the heat pump corresponding to the heat determination equipment based on the target heat pump adjustment frequency. Therefore, the heat of the water flow flowing out of the water flow pipeline can reach the target heat by adjusting the frequency of the heat pump, and hot water supply is achieved.

Description

Technical Field

[0001] The present application relates to the field of process management technology, and in particular to a hot water optimization method, device, equipment and medium for a process system. Background Art

[0002] Electronics factories are facing the challenge of hot water supply. Currently, they rely on manual operation of electric heating equipment for multiple production lines to control the heating process. This method is not only inefficient and difficult to ensure that the water temperature of each production line can accurately meet the required standards, but also causes waste of human resources and unnecessary increase in energy consumption. Obviously, this traditional operation mode urgently needs to be optimized and upgraded to improve efficiency, reduce costs and ensure the quality and stability of hot water supply. Summary of the invention

[0003] The embodiments of the present application provide a hot water optimization method, device, equipment and medium for a process system, which are used to solve the problem in the related art that the quality and stability of hot water supply cannot be ensured.

[0004] In a first aspect, an embodiment of the present application provides a hot water optimization method for a process system, wherein the process system comprises: a heat pump, at least one heat determination device, and an electronic device, wherein each heat determination device is respectively arranged inside different water flow pipes, and the method is applied to the electronic device, and the method comprises:

[0005] Obtaining the heat of the water flow in the corresponding water flow pipe measured by each heat determination device;

[0006] For each of the heat determination devices, a target difference between the heat sent by the heat determination device and the target heat saved for the heat determination device is determined; based on the correspondence between the pre-saved difference and the heat pump adjustment frequency, a target heat pump adjustment frequency corresponding to the target difference is determined; based on the target heat pump adjustment frequency, the frequency of the heat pump corresponding to the heat determination device is adjusted so that the heat of the water flow in the water flow pipe where the heat determination device is located reaches the target heat.

[0007] Furthermore, the adjusting the frequency of the heat pump corresponding to the heat determination device based on the target heat pump adjustment frequency includes:

[0008] If the target difference is greater than a preset threshold, the frequency of the heat pump corresponding to the heat determination device is increased based on the target heat pump adjustment frequency; otherwise, the frequency of the heat pump corresponding to the heat determination device is reduced based on the target heat pump adjustment frequency.

[0009] Further, after determining that the target difference is greater than a preset threshold, before adjusting the frequency of the heat pump based on the target heat pump and increasing the frequency of the heat pump corresponding to the heat determination device, the method further includes:

[0010] Determine the sum of the target heat pump adjustment frequency and the current frequency of the heat pump corresponding to the heat determination device, and judge whether the sum exceeds the pre-saved maximum heat pump adjustment frequency. If not, execute subsequent steps to increase the frequency of the heat pump corresponding to the heat determination device based on the target heat pump adjustment frequency.

[0011] Furthermore, if the sum exceeds a pre-stored maximum heat pump adjustment frequency, the method further includes:

[0012] Determine whether there is a heat pump that is not turned on at present. If so, determine the target heat pump whose start time is closest to the current one. If the target heat pump is a fixed-frequency heat pump and there is a variable-frequency heat pump among the heat pumps that are not turned on at present, select any unturned variable-frequency heat pump to turn on. If the target heat pump is a variable-frequency heat pump and there is a fixed-frequency heat pump among the heat pumps that are not turned on at present, select any unturned fixed-frequency heat pump to turn on.

[0013] Further, after determining that the target difference is not greater than a preset threshold, before adjusting the frequency of the heat pump based on the target heat pump and reducing the frequency of the heat pump corresponding to the heat determination device, the method further includes:

[0014] Determine the difference between the current frequency of the heat pump corresponding to the heat determination device and the target heat pump adjustment frequency, and judge whether the difference is lower than the pre-saved minimum heat pump adjustment frequency. If not, execute subsequent steps to reduce the frequency of the heat pump corresponding to the heat determination device based on the target heat pump adjustment frequency.

[0015] Furthermore, if the difference is lower than a pre-stored minimum heat pump adjustment frequency, the method further includes:

[0016] A heat pump whose start time is closest to the current time is determined, and the heat pump is turned off.

[0017] Furthermore, the process system further comprises: at least one air compressor waste heat recovery unit, the heat exchange components of each air compressor waste heat recovery unit are respectively connected to different water flow pipes and respectively connected to electronic equipment, and before obtaining the heat of the water flow in the corresponding water flow pipe measured by each heat determination device, the method further comprises:

[0018] The air compressor waste heat recovery unit is controlled to start, so that the air compressor waste heat recovery unit recovers the heat generated by the air compressor when it is working to heat the water pipe.

[0019] In a second aspect, an embodiment of the present application further provides a hot water optimization device for a process system, the process system comprising: a heat pump, at least one heat determination device and an electronic device, each heat determination device being respectively arranged inside different water flow pipes, the device comprising:

[0020] An acquisition module, used for acquiring the heat of the water flow in the corresponding water flow pipe measured by each heat determination device;

[0021] The processing module is used to determine, for each heat determination device, a target difference between the heat sent by the heat determination device and the target heat stored for the heat determination device; determine a target heat pump adjustment frequency corresponding to the target difference based on a correspondence between the pre-stored difference and the heat pump adjustment frequency; and adjust the frequency of the heat pump corresponding to the heat determination device based on the target heat pump adjustment frequency so that the heat of the water flow in the water flow pipe where the heat determination device is located reaches the target heat.

[0022] Furthermore, the processing module is specifically used to increase the frequency of the heat pump corresponding to the heat determination device based on the target heat pump adjustment frequency if the target difference is greater than a preset threshold; otherwise, reduce the frequency of the heat pump corresponding to the heat determination device based on the target heat pump adjustment frequency.

[0023] Furthermore, the processing module is also used to determine the sum of the target heat pump adjustment frequency and the current frequency of the heat pump corresponding to the heat determination device, and judge whether the sum exceeds the pre-saved maximum heat pump adjustment frequency. If not, execute subsequent steps of increasing the frequency of the heat pump corresponding to the heat determination device based on the target heat pump adjustment frequency.

[0024] Furthermore, the processing module is also used to determine whether there is a heat pump that is not currently turned on if the sum value exceeds the pre-saved highest heat pump adjustment frequency. If so, determine the target heat pump whose start time is closest to the current one. If the target heat pump is a fixed-frequency heat pump and there is a variable-frequency heat pump among the heat pumps that are not currently turned on, select any unturned variable-frequency heat pump to turn on. If the target heat pump is a variable-frequency heat pump and there is a fixed-frequency heat pump among the heat pumps that are not currently turned on, select any unturned fixed-frequency heat pump to turn on.

[0025] Furthermore, the processing module is also used to determine the difference between the current frequency of the heat pump corresponding to the heat determination device and the target heat pump adjustment frequency, and judge whether the difference is lower than the pre-saved minimum heat pump adjustment frequency; if not, execute subsequent steps to reduce the frequency of the heat pump corresponding to the heat determination device based on the target heat pump adjustment frequency.

[0026] Furthermore, the processing module is further configured to determine a heat pump whose start time is closest to the current one and shut down the heat pump if the difference is lower than a pre-stored minimum heat pump adjustment frequency.

[0027] Furthermore, the process system also includes: at least one air compressor waste heat recovery unit, the heat exchange components of each air compressor waste heat recovery unit are respectively connected to different water flow pipes and are respectively connected to electronic equipment, and the processing module is also used to control the opening of the air compressor waste heat recovery unit so that the air compressor waste heat recovery unit can recover the heat generated by the air compressor during operation to heat the water pipes.

[0028] In a third aspect, an embodiment of the present application further provides an electronic device, including:

[0029] A memory for storing program instructions;

[0030] The processor is used to call the program instructions stored in the memory, and execute the steps included in the method for hot water optimization of the process system described in any one of the above according to the obtained program instructions.

[0031] In a fourth aspect, an embodiment of the present application further provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, wherein the computer program includes program instructions, and when the program instructions are executed by a computer, the computer executes a method for hot water optimization of a process system as described in any one of the above items.

[0032] In the embodiment of the present application, the process system includes: a heat pump, a heat determination device and an electronic device, the heat determination device is arranged in a water flow pipe, the electronic device obtains the heat sent by the heat determination device; determines the target difference between the heat and the target heat pre-stored for the heat determination device; determines the target heat pump adjustment frequency corresponding to the target difference according to the correspondence between the pre-stored difference and the heat pump adjustment frequency; and adjusts the heat pump corresponding to the heat determination device based on the target heat pump adjustment frequency. Thus, by adjusting the frequency of the heat pump, the heat of the water flowing out of the water flow pipe can reach the target heat, thereby realizing hot water supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solution of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0034] Figure 1 A schematic diagram of the structure of a process system provided in an embodiment of the present application;

[0035] Figure 2 A schematic diagram of a hot water optimization method for a process system provided in an embodiment of the present application;

[0036] Figure 3A detailed structural diagram of a process system provided in an embodiment of the present application;

[0037] Figure 4 A structural diagram of a hot water optimization device for a process system provided in an embodiment of the present application;

[0038] Figure 5 A structural diagram of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of this application.

[0040] Obviously, the drawings described below are only some examples or embodiments of the present application. For ordinary technicians in this field, the present application can also be applied to other similar scenarios based on these drawings without creative work. In addition, it can also be understood that although the efforts made in this development process may be complicated and lengthy, for ordinary technicians in this field related to the content disclosed in this application, some changes in design, manufacturing or production based on the technical content disclosed in this application are just conventional technical means, and should not be understood as insufficient content disclosed in this application.

[0041] Reference to "embodiments" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those of ordinary skill in the art that the embodiments described in this application may be combined with other embodiments without conflict.

[0042] The words "connected", "connected", "coupled" and the like involved in this application are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The "plurality" involved in this application refers to two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, "A and / or B" can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the previous and subsequent associated objects are in an "or" relationship. The terms "first", "second", "third" and the like involved in this application are merely used to distinguish similar objects, and do not represent a specific ordering of objects.

[0043] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0044] Embodiment 1:

[0045] Figure 1 A schematic diagram of the structure of a process system provided in an embodiment of the present application.

[0046] The process system comprises a heat pump 101, at least one heat determination device 102 and an electronic device 103, wherein each heat determination device is respectively arranged inside different water flow pipes.

[0047] Figure 2 A schematic diagram of a hot water optimization method for a process system provided in an embodiment of the present application, the process comprising the following steps:

[0048] S201: Obtain the heat of water flow in the corresponding water flow pipeline measured by each heat determination device.

[0049] The hot water optimization method of the process system is applied to electronic equipment, which may be a programmable logic controller (PLC) host, a PC, a server or other intelligent equipment.

[0050] In order to achieve hot water supply, the electronic device can obtain the heat of the water flow in the corresponding water flow pipe measured by each heat determination device. In a possible implementation, the water flow in different water flow pipes can supply hot water for different processes.

[0051] It should be noted that the heat determination device may send the measured heat to the electronic device at a preset time interval. In order to improve the accuracy of heat determination, the electronic device may obtain each heat sent by the same heat determination device within a preset time period, and eliminate abnormal values ​​in each heat, obtain the average value of each heat after eliminating the abnormal values, and determine the average value as the heat of the water flow in the water flow pipe corresponding to the heat determination device.

[0052] The heat determination device may be a combination of a temperature transmitter and a flow sensor (or mass flow meter). The temperature transmitter is used to obtain the temperature of the water flow, while the flow sensor (or mass flow meter) is used to measure the volume flow of the water flow. If a volume flow meter is used, the mass flow needs to be calculated in combination with the density of the water. Based on the temperature of the water flow obtained by the temperature transmitter and the mass flow of the water flow obtained by the flow sensor (or mass flow meter), as well as the known specific heat capacity of water, the heat of the water flow can be calculated.

[0053] S202: For each heat determination device, determine a target difference between the heat sent by the heat determination device and the target heat saved for the heat determination device; determine a target heat pump adjustment frequency corresponding to the target difference based on a correspondence between the pre-saved difference and the heat pump adjustment frequency; based on the target heat pump adjustment frequency, adjust the frequency of the heat pump corresponding to the heat determination device so that the heat of the water flow in the water flow pipe where the heat determination device is located reaches the target heat.

[0054] In order to improve the intelligence and flexibility of the hot water supply system, for each heat determination device, when there is a demand for hot water supply, the electronic equipment can determine the target heat value corresponding to each heat determination device based on the needs of each process. These target heat values ​​are set according to the specific process requirements served by each water flow pipeline to ensure that the water flow in each section of the pipeline can reach the optimal heat state required by the process. Business personnel can pre-set and adjust these target heat values ​​according to actual needs to adapt to different production or life scenarios, thereby realizing personalized customization and efficient management of hot water supply.

[0055] For each heat determination device, after the electronic device obtains the heat sent by the heat determination device, it can determine the target difference between the heat sent by the heat determination device and the target heat corresponding to the heat determination device, and in order to achieve hot water supply, the electronic device locally pre-saves the correspondence between the difference and the heat pump adjustment frequency, and the electronic device can obtain the target heat pump adjustment frequency corresponding to the target difference.

[0056] After acquiring the target heat pump adjustment frequency, the electronic device can adjust the frequency of the heat pump corresponding to the heat determination device based on the target heat pump adjustment frequency, so that the heat of the water flow in the water flow pipe locked by the heat determination device reaches the target heat.

[0057] The embodiment of the present application is equivalent to providing a semiconductor process hot water universal energy optimization algorithm. The electronic equipment monitors the heat load of the production side in real time, and reasonably combines and operates the heat pump units according to the heat energy required by the production side, ensuring the supply and demand balance of the system with the highest efficiency and the best energy saving combination.

[0058] Moreover, in the embodiment of the present application, the circulating water pumps with the same function are operated as a set of units, and the electronic equipment can also judge the heat exchange efficiency of the plate heat exchanger according to the inlet and return water temperature and pressure. When the heat exchange efficiency is low, the number of circulating water pumps can be increased, and the running circulating water pumps can be operated at the same frequency to achieve the purpose of optimal operating efficiency. When the heat exchange efficiency meets the standard, but the water pump frequency is too low, the number of circulating water pumps can be reduced to avoid low-frequency operation of the water pump and unnecessary energy waste.

[0059] In the embodiment of the present application, the process system includes: a heat pump, a heat determination device and an electronic device, the heat determination device is arranged in a water flow pipe, the electronic device obtains the heat sent by the heat determination device; determines the target difference between the heat and the target heat pre-stored for the heat determination device; determines the target heat pump adjustment frequency corresponding to the target difference according to the correspondence between the pre-stored difference and the heat pump adjustment frequency; and adjusts the heat pump corresponding to the heat determination device based on the target heat pump adjustment frequency. Thus, by adjusting the frequency of the heat pump, the heat of the water flowing out of the water flow pipe can reach the target heat, thereby realizing hot water supply.

[0060] Embodiment 2:

[0061] In order to adjust the frequency of the heat pump, based on the above embodiment, in the embodiment of the present application, the frequency adjustment of the heat pump corresponding to the heat determination device based on the target heat pump adjustment frequency includes:

[0062] If the target difference is greater than a preset threshold, the frequency of the heat pump corresponding to the heat determination device is increased based on the target heat pump adjustment frequency; otherwise, the frequency of the heat pump corresponding to the heat determination device is reduced based on the target heat pump adjustment frequency.

[0063] In an embodiment of the present application, after determining the target difference between the heat and the target heat, the electronic device can determine whether the target difference is greater than a preset threshold value. In a possible implementation, the preset threshold value can be 0. If the target difference is greater than the preset threshold value, the frequency of the heat pump corresponding to the heat determination device is increased based on the target heat pump adjustment frequency. Specifically, the electronic device can increase the frequency of the heat pump corresponding to the heat determination device by the target heat pump frequency. If the target difference is not greater than the preset threshold value, the frequency of the heat pump corresponding to the heat determination device is reduced based on the target heat pump adjustment frequency. Specifically, the electronic device can reduce the frequency of the heat pump corresponding to the heat determination device by the target heat pump frequency.

[0064] Embodiment 3:

[0065] In order to adjust the frequency of the heat pump, based on the above embodiments, in the embodiment of the present application, after determining that the target difference is greater than a preset threshold, before adjusting the frequency of the heat pump based on the target heat pump and increasing the frequency of the heat pump corresponding to the heat determination device, the method further includes:

[0066] Determine the sum of the target heat pump adjustment frequency and the current frequency of the heat pump corresponding to the heat determination device, and judge whether the sum exceeds the pre-saved maximum heat pump adjustment frequency. If not, execute subsequent steps to increase the frequency of the heat pump corresponding to the heat determination device based on the target heat pump adjustment frequency.

[0067] In actual scenarios, if the frequency of the adjusted heat pump is higher than the maximum heat pump frequency, the frequency may be too high, causing the heat pump to overload or run at risk. Therefore, in order to improve the safety of the heat pump, the electronic device can first calculate the sum of the target heat pump adjustment frequency and the current frequency of the heat pump of the heat determination device after confirming that the target difference is greater than the preset threshold. Then, the electronic device can determine whether this sum exceeds the preset maximum heat pump adjustment frequency limit. If the judgment result is that it does not exceed, the subsequent adjustment steps are continued, that is, the operating frequency of the heat pump of the heat determination device is increased according to the target heat pump adjustment frequency. This process ensures that the adjustment of the heat pump frequency meets the standard of increased demand and avoids equipment overload or operation risks that may be caused by excessive frequency.

[0068] In order to adjust the frequency of the heat pump, based on the above embodiments, in the embodiment of the present application, if the sum value exceeds the pre-stored maximum heat pump adjustment frequency, the method further includes:

[0069] Determine whether there is a heat pump that is not turned on at present. If so, determine the target heat pump whose start time is closest to the current one. If the target heat pump is a fixed-frequency heat pump and there is a variable-frequency heat pump among the heat pumps that are not turned on at present, select any unturned variable-frequency heat pump to turn on. If the target heat pump is a variable-frequency heat pump and there is a fixed-frequency heat pump among the heat pumps that are not turned on at present, select any unturned fixed-frequency heat pump to turn on.

[0070] If the sum of the calculated frequencies exceeds the preset maximum heat pump adjustment frequency, adjusting the frequency of the heat pump at this time may cause the heat pump to overload or run at risk. In order to improve the safety of the heat pump, the electronic device can determine whether there is a heat pump that is not currently turned on. If there is an unturned heat pump, further screening is performed to find the target heat pump that was most recently shut down from the current time. Next, an intelligent selection is made based on the type of heat pump: if the target heat pump is a fixed frequency type, and the unturned heat pumps include variable frequency types, then any unturned variable frequency heat pump is preferentially selected for startup to utilize its adjustable frequency characteristics to more flexibly achieve hot water supply. However, if the target heat pump is a variable frequency type, but the currently unturned heat pumps only include fixed frequency types, then any unturned fixed frequency heat pump is selected to start, which sacrifices some of the adjustment flexibility but ensures the system's immediate response and heat supply.

[0071] The method provided in the embodiment of the present application ensures the stability of the operation of the process system and optimizes the energy utilization efficiency and equipment life as much as possible by intelligently selecting the heat pump type.

[0072] Embodiment 4:

[0073] In order to adjust the frequency of the heat pump, based on the above embodiments, in the embodiment of the present application, after determining that the target difference is not greater than a preset threshold, before adjusting the frequency of the heat pump based on the target heat pump and reducing the frequency of the heat pump corresponding to the heat determination device, the method further includes:

[0074] Determine the difference between the current frequency of the heat pump corresponding to the heat determination device and the target heat pump adjustment frequency, and judge whether the difference is lower than the pre-saved minimum heat pump adjustment frequency. If not, execute subsequent steps to reduce the frequency of the heat pump corresponding to the heat determination device based on the target heat pump adjustment frequency.

[0075] If the operating frequency of the heat pump continues to remain at a level that is too low, it may lead to inefficient energy utilization and unnecessary waste of resources. In order to optimize energy use and improve system efficiency, dynamic monitoring and intelligent adjustment strategies should be implemented. Specifically, after determining that the target difference is not greater than the preset threshold, the electronic device can calculate the difference between the current frequency of the heat pump operation of the heat determination device and the target heat pump adjustment frequency. Subsequently, the electronic device can determine whether this difference is lower than the preset minimum heat pump adjustment frequency limit. If the judgment result is not lower than, continuing to perform subsequent adjustment steps will not cause the problem of low utilization efficiency, then the electronic device can reduce the operating frequency of the heat pump of the heat determination device according to the target heat pump adjustment frequency. This process ensures that the adjustment of the heat pump frequency meets the standards for increased demand and avoids the problem of low energy utilization efficiency caused by the heat pump operating frequency being continuously maintained at a too low level.

[0076] In order to adjust the frequency of the heat pump, based on the above embodiments, in the embodiment of the present application, if the difference is lower than the pre-stored minimum heat pump adjustment frequency, the method further includes:

[0077] A heat pump whose start time is closest to the current time is determined, and the heat pump is turned off.

[0078] If the calculated frequency difference is lower than the preset minimum heat pump adjustment frequency, adjusting the heat pump frequency at this time may cause the heat pump to run at a low frequency for a long time, resulting in low energy efficiency. Therefore, the electronic device can identify and determine the heat pump that was turned on the closest to the current time since the last shutdown, and perform the shutdown operation. This strategy is designed to quickly respond to changes in system demand by shutting down heat pumps that have been turned on in the recent period, while avoiding unnecessary minor adjustments to heat pumps that are already running at a lower frequency, thereby optimizing overall energy efficiency and response speed.

[0079] Embodiment 5:

[0080] In order to supply hot water, based on the above embodiments, in the embodiment of the present application, the process system further includes: at least one air compressor waste heat recovery unit 104, and the heat exchange components of each air compressor waste heat recovery unit 104 are respectively connected to different water flow pipes and respectively connected to electronic devices. Before obtaining the heat of the water flow in the corresponding water flow pipe measured by each heat determination device, the method further includes:

[0081] The air compressor waste heat recovery unit is controlled to start, so that the air compressor waste heat recovery unit recovers the heat generated by the air compressor when it is working to heat the water pipe.

[0082] In actual applications, in view of the large amount of heat energy generated during the operation of the air compressor, in order to efficiently utilize this resource, the process system is carefully designed to integrate at least one air compressor waste heat recovery unit. These units are each equipped with a heat exchange component, which can be a plate exchange, that is, a plate heat exchanger, and are independently connected to different water pipe systems, and are connected to intelligent electronic devices. Before officially starting the heat measurement process, the intelligent electronic device will pre-instruct the air compressor waste heat recovery unit to start. This move is intended to instantly capture and recycle the heat released during the operation of the air compressor, and directly heat the water flowing through the respective pipes. This method not only realizes the effective recovery and reuse of energy, but also improves the energy efficiency of the overall system, highlighting the dual optimization of environmental protection and economic benefits.

[0083] In an embodiment of the present application, the air compressor waste heat recovery machine recovers the heat generated by the air compressor, and supplies one branch of medium-temperature hot water to the water distributor through a plate exchanger, and then supplies it to the terminal process equipment and air conditioning through the water distributor, and the other branch is connected to the dormitory hot water tank for dormitory living water use.

[0084] Figure 3 A detailed structural diagram of a process system provided in an embodiment of the present application.

[0085] Depend on Figure 3 It can be seen that the process system includes PLC and host computer. PLC is connected to 4 screw heat pumps through communication / cable signals, and is connected to 5 air compressor waste heat recovery units and circulating water pumps through cable signals. PLC will receive signals from flow meters, pressure transmitters, and temperature transmitters installed in the pipeline, and control the electric valves installed in the pipeline. PLC is connected to the control cabinet. Business personnel can send signals to PLC to control components such as heat pumps in the process system based on the control cabinet.

[0086] The process system in the embodiment of the present application includes a circulating water pump, a water distributor, a water collector, a temperature transmitter, a pressure transmitter, a flow meter, an electric valve, a screw heat pump unit, a plate exchanger, a fully automatic softened water system, and a constant pressure water supply system. On-site controlled equipment and quantity: 17 variable frequency circulating water pumps, 4 heat pump units, 8 temperature transmitters, 8 pressure transmitters, 7 flow meters, 8 electric valves, 5 air compressor waste heat return machines, 2 water treatment systems, and 2 constant pressure water supply systems. This application uses a centrifugal air compressor for three-stage waste heat recovery + hot and cold full-effect screw heat pump to meet the heat requirements of process production and air conditioning constant temperature and humidity. In order to solve the hot water supply demand of production process equipment, a water ring heat pump is used to provide hot water for process equipment, that is, to make full use of the waste heat of the air compressor to recover heat, and the 7°C chilled water generated on the low temperature side of the heat pump can be merged into the medium temperature chiller water system to achieve reasonable and full utilization of energy and achieve maximum energy saving. For the five 502KW air compressor systems, five three-stage waste heat recovery units dedicated to centrifugal air compressors are configured one-to-one to recover the heat generated by the air compressors during operation. The maximum outlet water temperature of the waste heat recovery unit is 95°C, which can meet the gas production while taking into account the process hot water demand. The hot and cold full-effect screw heat pump adopts a combination of three fixed-frequency units + one variable-frequency unit. While meeting the needs of process and air-conditioning hot water, it can also produce 7°C cold water for process and air-conditioning use. The overall energy efficiency of the system is as high as COP value>5.9.

[0087] In an embodiment of the present application, the heat generated by the air compressor during operation is recovered through a waste heat recovery unit and converted into the thermal energy required by the production side, thereby reducing the investment in equipment for the post-cooling process section of the air compressor and reducing the cost of heating.

[0088] The medium-temperature water produced by the hot water side of the screw heat pump in the embodiment of the present application and the warm water produced by the air compressor waste heat recovery unit can be connected to the same water distributor, and then connected to the terminal process equipment through the water distributor; the low-temperature water produced by the cold water side is connected to the air conditioning cold system. In addition, the air compressor waste heat recovery process is used preferentially to supply heat to the production side. When the air compressor waste heat recovery system cannot meet the hot water demand of the production side, the screw heat pump is started to continuously provide hot water to the production side to meet the heat demand of the production equipment.

[0089] The control logic of the embodiment of the present application is: after the electronic device automatically starts, it first monitors the hot water recovery unit of the air compressor. When the waste heat recovery unit is running, the electronic device automatically starts its corresponding circulating water pump, so that the heat recovered from the waste heat can be quickly transferred to the production energy side through the plate exchanger, and the circulating water pump automatically adjusts the frequency according to the outlet constant pressure mode. After the air compressor waste heat recovery unit has been running for a period of time, the temperature of the production energy side still cannot meet the heating demand, and the electronic device automatically starts the variable frequency heat pump and related valves and circulating water pumps to supplement the heat demand on the energy side. The electronic device continues to judge whether the heat demand on the production energy side is met. If the heat on the energy side still cannot be met after the set time, the system starts a power frequency heat pump and its corresponding valves, circulating pumps and other equipment to transport high-temperature water to the energy side; by analogy, when the production energy side cannot be met, the number of power frequency heat pumps will be increased. When the temperature supply on the production energy side is too high, the system will stop running in the order of power frequency heat pump and variable frequency heat pump until the supply and demand are balanced.

[0090] Since the equipment is distributed over a wide area, two electronic devices can be used to systematically collect and control various equipment and sensors on site, including temperature sensors, pressure transmitters, electric valves, screw heat pumps, air compressor waste heat recovery machines, heat meters, circulating water pumps, water treatment systems, constant pressure water replenishment systems, etc.

[0091] In addition, operators can use the HMI on the control cabinet to switch between manual and automatic modes, as well as start, stop, and control target values ​​of circulating water pumps, electric valves, heat pumps, and other equipment on site. The central control room is also equipped with a host computer SCADA system. Operators can not only use the SCADA system to achieve the same functions as the HMI, but also use the SCADA system to record, compare, and analyze data such as electricity, heat, and carbon energy on site.

[0092] The method provided in the embodiment of the present application enables users to realize local centralized control, one-button start and stop of units, automatic addition and subtraction of units according to load, and automatic adjustment to achieve intelligent control and operation and maintenance, so as to achieve better energy saving and consumption reduction.

[0093] The method provided by the embodiment of the present application is adopted to greatly simplify the operation process of the operator. The heating control of each production line is upgraded from manually turning on and off the electric heating equipment for multiple production lines to unified heating control for all production lines and automatic supply of heat on demand. The staff of the production line only needs to be responsible for the production situation of the production line and does not need to consider the heat supply situation, which greatly reduces the workload of the operators and improves the overall work efficiency. When the process production line has a demand for hot water, the operator can issue an automatic start command to the system through a variety of control methods such as mobile phone APP, local touch screen, and SCADA system. The system will automatically calculate the combined operating equipment according to the current load situation of the process production line and put it into operation, thereby achieving a balance between energy supply and demand. In this way, the entire on-site system is in fully automatic control and unattended mode, which ensures the timeliness of heat supply and improves the work efficiency of workers on the process production line and the quality of products.

[0094] Table 1 is the detailed information of the solution of the prior art and the solution of this application:

[0095]

[0096] Table 1

[0097] It can be seen from Table 1 that the heating method adopted in the prior art is process heating pipe + air conditioning electric heating, and the heating method adopted in this application is three-stage waste heat recovery of air compressor + screw hot and cold full-effect heat pump. The production power demand of the prior art is 9230kW, and the production power demand of this application is 1236kW. The annual operating electricity cost of the prior art is about 15 million, and the annual operating electricity cost of this application is about 2.74 million. The annual electricity cost saving of this application is 12.26 million. The system characteristics of the prior art are high energy consumption and greater safety hazards, and the system characteristics of this application are safety, energy saving and intelligence.

[0098] Moreover, the method provided in the embodiment of the present application can save 21930480 kWh of electricity per year; save 8772192 tons of standard coal per year; reduce carbon emissions by 19737432 tons per year; and save about 2.26 million yuan in electricity bills per year.

[0099] Embodiment 6:

[0100] Based on the same inventive concept, the present application embodiment provides a hot water optimization device for a process system, please refer to Figure 4 , the device comprises:

[0101] An acquisition module 401 is used to acquire the heat of the water flow in the corresponding water flow pipe measured by each heat determination device;

[0102] The processing module 402 is used to determine, for each heat determination device, a target difference between the heat sent by the heat determination device and the target heat saved for the heat determination device; determine a target heat pump adjustment frequency corresponding to the target difference based on a correspondence between the pre-saved difference and the heat pump adjustment frequency; and adjust the frequency of the heat pump corresponding to the heat determination device based on the target heat pump adjustment frequency so that the heat of the water flow in the water flow pipe where the heat determination device is located reaches the target heat.

[0103] In a possible implementation, the processing module 402 is specifically used to increase the frequency of the heat pump corresponding to the heat determination device based on the target heat pump adjustment frequency if the target difference is greater than a preset threshold; otherwise, reduce the frequency of the heat pump corresponding to the heat determination device based on the target heat pump adjustment frequency.

[0104] In a possible implementation, the processing module 402 is also used to determine the sum of the target heat pump adjustment frequency and the current frequency of the heat pump corresponding to the heat determination device, and determine whether the sum exceeds the pre-saved maximum heat pump adjustment frequency. If not, executing subsequent steps of increasing the frequency of the heat pump corresponding to the heat determination device based on the target heat pump adjustment frequency.

[0105] In a possible implementation, the processing module 402 is also used to determine whether there is a heat pump that is not currently turned on if the sum value exceeds the pre-saved highest heat pump adjustment frequency. If so, determine the target heat pump whose turn-on time is closest to the current one. If the target heat pump is a fixed-frequency heat pump and there is a variable-frequency heat pump among the heat pumps that are not currently turned on, select any unturned variable-frequency heat pump to turn on. If the target heat pump is a variable-frequency heat pump and there is a fixed-frequency heat pump among the heat pumps that are not currently turned on, select any unturned fixed-frequency heat pump to turn on.

[0106] In a possible implementation, the processing module 402 is also used to determine the difference between the current frequency of the heat pump corresponding to the heat determination device and the target heat pump adjustment frequency, and to determine whether the difference is lower than a pre-saved minimum heat pump adjustment frequency; if not, executing subsequent steps of reducing the frequency of the heat pump corresponding to the heat determination device based on the target heat pump adjustment frequency.

[0107] In a possible implementation manner, the processing module 402 is further configured to determine a heat pump whose start time is closest to the current one, and shut down the heat pump if the difference is lower than a pre-stored minimum heat pump adjustment frequency.

[0108] In a possible embodiment, the process system also includes: at least one air compressor waste heat recovery unit, the heat exchange components of each air compressor waste heat recovery unit are respectively connected to different water flow pipes and are respectively connected to electronic equipment, and the processing module 402 is also used to control the start of the air compressor waste heat recovery unit so that the air compressor waste heat recovery unit can recover the heat generated by the air compressor during operation to heat the water pipes.

[0109] Embodiment 7:

[0110] Based on the same inventive concept, the present application embodiment provides an electronic device, which can realize the function of hot water optimization of the process system mentioned above, please refer to Figure 5 The device includes a processor 501, a memory 503 and a communication bus 505, wherein the processor 501, the communication interface 502, and the memory 503 communicate with each other via the communication bus 504.

[0111] The memory 503 stores a computer program. When the program is executed by the processor 501, the processor 501 performs the following steps:

[0112] Obtaining the heat of the water flow in the corresponding water flow pipe measured by each heat determination device;

[0113] For each of the heat determination devices, a target difference between the heat sent by the heat determination device and the target heat saved for the heat determination device is determined; based on the correspondence between the pre-saved difference and the heat pump adjustment frequency, a target heat pump adjustment frequency corresponding to the target difference is determined; based on the target heat pump adjustment frequency, the frequency of the heat pump corresponding to the heat determination device is adjusted so that the heat of the water flow in the water flow pipe where the heat determination device is located reaches the target heat.

[0114] In a possible implementation manner, adjusting the frequency of the heat pump corresponding to the heat determination device based on the target heat pump adjustment frequency includes:

[0115] If the target difference is greater than a preset threshold, the frequency of the heat pump corresponding to the heat determination device is increased based on the target heat pump adjustment frequency; otherwise, the frequency of the heat pump corresponding to the heat determination device is reduced based on the target heat pump adjustment frequency.

[0116] In a possible implementation, after determining that the target difference is greater than a preset threshold, and before adjusting the frequency of the heat pump based on the target heat pump to increase the frequency of the heat pump corresponding to the heat determination device, the method further includes:

[0117] Determine the sum of the target heat pump adjustment frequency and the current frequency of the heat pump corresponding to the heat determination device, and judge whether the sum exceeds the pre-saved maximum heat pump adjustment frequency. If not, execute subsequent steps to increase the frequency of the heat pump corresponding to the heat determination device based on the target heat pump adjustment frequency.

[0118] In a possible implementation manner, if the sum exceeds a pre-stored maximum heat pump adjustment frequency, the method further includes:

[0119] Determine whether there is a heat pump that is not turned on at present. If so, determine the target heat pump whose start time is closest to the current one. If the target heat pump is a fixed-frequency heat pump and there is a variable-frequency heat pump among the heat pumps that are not turned on at present, select any unturned variable-frequency heat pump to turn on. If the target heat pump is a variable-frequency heat pump and there is a fixed-frequency heat pump among the heat pumps that are not turned on at present, select any unturned fixed-frequency heat pump to turn on.

[0120] In a possible implementation, after determining that the target difference is not greater than a preset threshold, and before adjusting the frequency of the heat pump based on the target heat pump to reduce the frequency of the heat pump corresponding to the heat determination device, the method further includes:

[0121] Determine the difference between the current frequency of the heat pump corresponding to the heat determination device and the target heat pump adjustment frequency, and judge whether the difference is lower than the pre-saved minimum heat pump adjustment frequency. If not, execute subsequent steps to reduce the frequency of the heat pump corresponding to the heat determination device based on the target heat pump adjustment frequency.

[0122] In a possible implementation manner, if the difference is lower than a pre-stored minimum heat pump adjustment frequency, the method further includes:

[0123] A heat pump whose start time is closest to the current time is determined, and the heat pump is turned off.

[0124] In a possible implementation, the process system further includes: at least one air compressor waste heat recovery unit, the heat exchange components of each air compressor waste heat recovery unit are respectively connected to different water flow pipes and respectively connected to electronic equipment, and before obtaining the heat of the water flow in the corresponding water flow pipe measured by each heat determination device, the method further includes:

[0125] The air compressor waste heat recovery unit is controlled to start, so that the air compressor waste heat recovery unit recovers the heat generated by the air compressor when it is working to heat the water pipe.

[0126] The communication bus mentioned in the above server can be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus, etc. The communication bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, only one thick line is used in the figure, but it does not mean that there is only one bus or one type of bus.

[0127] The communication interface 502 is used for communication between the electronic device and other devices.

[0128] The memory may include a random access memory (RAM) or a non-volatile memory (NVM), such as at least one disk memory. Optionally, the memory may also be at least one storage device located away from the aforementioned processor.

[0129] The above-mentioned processor can be a general-purpose processor, including a central processing unit, a network processor (Network Processor, NP), etc.; it can also be a digital signal processing processor (Digital Signal Processing, DSP), an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, etc.

[0130] Embodiment 8:

[0131] Based on the same inventive concept, an embodiment of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program executable by an electronic device. When the program runs on the electronic device, the electronic device implements the following steps when executing:

[0132] Obtaining the heat of the water flow in the corresponding water flow pipe measured by each heat determination device;

[0133] For each of the heat determination devices, a target difference between the heat sent by the heat determination device and the target heat saved for the heat determination device is determined; based on the correspondence between the pre-saved difference and the heat pump adjustment frequency, a target heat pump adjustment frequency corresponding to the target difference is determined; based on the target heat pump adjustment frequency, the frequency of the heat pump corresponding to the heat determination device is adjusted so that the heat of the water flow in the water flow pipe where the heat determination device is located reaches the target heat.

[0134] In a possible implementation manner, adjusting the frequency of the heat pump corresponding to the heat determination device based on the target heat pump adjustment frequency includes:

[0135] If the target difference is greater than a preset threshold, the frequency of the heat pump corresponding to the heat determination device is increased based on the target heat pump adjustment frequency; otherwise, the frequency of the heat pump corresponding to the heat determination device is reduced based on the target heat pump adjustment frequency.

[0136] In a possible implementation, after determining that the target difference is greater than a preset threshold, and before adjusting the frequency of the heat pump based on the target heat pump to increase the frequency of the heat pump corresponding to the heat determination device, the method further includes:

[0137] Determine the sum of the target heat pump adjustment frequency and the current frequency of the heat pump corresponding to the heat determination device, and judge whether the sum exceeds the pre-saved maximum heat pump adjustment frequency. If not, execute subsequent steps to increase the frequency of the heat pump corresponding to the heat determination device based on the target heat pump adjustment frequency.

[0138] In a possible implementation manner, if the sum exceeds a pre-stored maximum heat pump adjustment frequency, the method further includes:

[0139] Determine whether there is a heat pump that is not turned on at present. If so, determine the target heat pump whose start time is closest to the current one. If the target heat pump is a fixed-frequency heat pump and there is a variable-frequency heat pump among the heat pumps that are not turned on at present, select any unturned variable-frequency heat pump to turn on. If the target heat pump is a variable-frequency heat pump and there is a fixed-frequency heat pump among the heat pumps that are not turned on at present, select any unturned fixed-frequency heat pump to turn on.

[0140] In a possible implementation, after determining that the target difference is not greater than a preset threshold, and before adjusting the frequency of the heat pump based on the target heat pump to reduce the frequency of the heat pump corresponding to the heat determination device, the method further includes:

[0141] Determine the difference between the current frequency of the heat pump corresponding to the heat determination device and the target heat pump adjustment frequency, and judge whether the difference is lower than the pre-saved minimum heat pump adjustment frequency. If not, execute subsequent steps to reduce the frequency of the heat pump corresponding to the heat determination device based on the target heat pump adjustment frequency.

[0142] In a possible implementation manner, if the difference is lower than a pre-stored minimum heat pump adjustment frequency, the method further includes:

[0143] A heat pump whose start time is closest to the current time is determined, and the heat pump is turned off.

[0144] In a possible implementation, the process system further includes: at least one air compressor waste heat recovery unit, the heat exchange components of each air compressor waste heat recovery unit are respectively connected to different water flow pipes and respectively connected to electronic equipment, and before obtaining the heat of the water flow in the corresponding water flow pipe measured by each heat determination device, the method further includes:

[0145] The air compressor waste heat recovery unit is controlled to start, so that the air compressor waste heat recovery unit recovers the heat generated by the air compressor when it is working to heat the water pipe.

[0146] 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.

[0147] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes 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 produce 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.

[0148] 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 comprising 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.

[0149] 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 1A step that specifies a function in one or more boxes.

[0150] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A hot water optimization method for a process system, characterized in that: The process system comprises: a heat pump, at least one heat determination device and an electronic device, each heat determination device is respectively arranged inside different water flow pipes, and the method is applied to the electronic device, and the method comprises: Obtaining the heat of the water flow in the corresponding water flow pipe measured by each heat determination device; For each of the heat determination devices, a target difference between the heat sent by the heat determination device and the target heat saved for the heat determination device is determined; based on the correspondence between the pre-saved difference and the heat pump adjustment frequency, a target heat pump adjustment frequency corresponding to the target difference is determined; based on the target heat pump adjustment frequency, the frequency of the heat pump corresponding to the heat determination device is adjusted so that the heat of the water flow in the water flow pipe where the heat determination device is located reaches the target heat.

2. The method according to claim 1, characterized in that The adjusting the frequency of the heat pump corresponding to the heat determination device based on the target heat pump adjustment frequency includes: If the target difference is greater than a preset threshold, the frequency of the heat pump corresponding to the heat determination device is increased based on the target heat pump adjustment frequency; otherwise, the frequency of the heat pump corresponding to the heat determination device is reduced based on the target heat pump adjustment frequency.

3. The method according to claim 2, characterized in that After determining that the target difference is greater than a preset threshold, and before adjusting the frequency of the heat pump based on the target heat pump and increasing the frequency of the heat pump corresponding to the heat determination device, the method further includes: Determine the sum of the target heat pump adjustment frequency and the current frequency of the heat pump corresponding to the heat determination device, and judge whether the sum exceeds the pre-saved maximum heat pump adjustment frequency. If not, execute subsequent steps to increase the frequency of the heat pump corresponding to the heat determination device based on the target heat pump adjustment frequency.

4. The method according to claim 3, characterized in that: If the sum exceeds the pre-stored maximum heat pump adjustment frequency, the method further includes: Determine whether there is a heat pump that is not turned on at present. If so, determine the target heat pump whose start time is closest to the current one. If the target heat pump is a fixed-frequency heat pump and there is a variable-frequency heat pump among the heat pumps that are not turned on at present, select any unturned variable-frequency heat pump to turn on. If the target heat pump is a variable-frequency heat pump and there is a fixed-frequency heat pump among the heat pumps that are not turned on at present, select any unturned fixed-frequency heat pump to turn on.

5. The method according to claim 2, characterized in that: After determining that the target difference is not greater than a preset threshold, and before adjusting the frequency of the heat pump based on the target heat pump to reduce the frequency of the heat pump corresponding to the heat determination device, the method further includes: Determine the difference between the current frequency of the heat pump corresponding to the heat determination device and the target heat pump adjustment frequency, and judge whether the difference is lower than the pre-saved minimum heat pump adjustment frequency. If not, execute subsequent steps to reduce the frequency of the heat pump corresponding to the heat determination device based on the target heat pump adjustment frequency.

6. The method according to claim 5, characterized in that If the difference is lower than a pre-stored minimum heat pump adjustment frequency, the method further includes: A heat pump whose start time is closest to the current time is determined, and the heat pump is turned off.

7. The method according to claim 1, characterized in that The process system further includes: at least one air compressor waste heat recovery unit, and the heat exchange components of each air compressor waste heat recovery unit are respectively connected to different water flow pipes and respectively connected to electronic equipment. Before obtaining the heat of the water flow in the corresponding water flow pipe measured by each heat determination device, the method further includes: The air compressor waste heat recovery unit is controlled to start, so that the air compressor waste heat recovery unit recovers the heat generated by the air compressor when it is working to heat the water pipe.

8. A hot water optimization device for a process system, characterized in that: The process system comprises: a heat pump, at least one heat determination device and electronic equipment, each heat determination device is respectively arranged inside different water flow pipes, and the device comprises: An acquisition module, used for acquiring the heat of the water flow in the corresponding water flow pipeline measured by each heat determination device; The processing module is used to determine, for each heat determination device, a target difference between the heat sent by the heat determination device and the target heat stored for the heat determination device; determine a target heat pump adjustment frequency corresponding to the target difference based on a correspondence between the pre-stored difference and the heat pump adjustment frequency; and adjust the frequency of the heat pump corresponding to the heat determination device based on the target heat pump adjustment frequency so that the heat of the water flow in the water flow pipe where the heat determination device is located reaches the target heat.

9. An electronic device, characterized in that: include: A memory for storing program instructions; A processor is used to call the program instructions stored in the memory, and execute the steps included in the method for hot water optimization of the process system according to any one of claims 1 to 7 according to the obtained program instructions.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, wherein the computer program includes program instructions, and when the program instructions are executed by a computer, the computer executes the method for hot water optimization of a process system according to any one of claims 1 to 7.

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