Circulating water heating method and device, storage medium and computer program product
The heat energy of the exhaust steam of the low-pressure cylinder is increased through the steam heat recovery device and transferred to the circulating water of the heat exchanger of the heating station, solving the problem of heat energy waste caused by direct discharge of the exhaust steam of the low-pressure cylinder into the steam condenser, and achieving efficient utilization of heat energy.
Patent Information
- Application Number
- CN202411843275.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-13
- Publication Date
- 2025-04-08
AI Technical Summary
In the prior art, the exhaust steam of the low-pressure cylinder is directly discharged into the steam condenser, resulting in a large amount of heat energy being wasted.
The thermal energy of the first exhaust steam output from the low-pressure cylinder is obtained through the steam heat recovery device, and the pressure and temperature thereof are increased by the injector to obtain the second exhaust steam. Then, the heat energy in the first and second exhaust steam is transferred to the circulating water of the heat exchanger of the heating station, and the temperature of the circulating water is heated.
The heat energy of the exhaust steam of the low-pressure cylinder is effectively utilized, reducing the waste of heat energy and improving the utilization efficiency of heat energy.
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Figure CN119778062A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of energy engineering, and more specifically, to a circulating water heating method and device, a storage medium, and a computer program product. Background Art
[0002] In the related art, the exhaust steam of the low-pressure cylinder is usually discharged directly into the steam condenser for condensation. The steam condenser condenses the exhaust steam through cooling water, and releases the heat energy in the exhaust steam into the environment at a lower temperature. A large amount of heat energy is wasted in the form of low-quality heat.
[0003] With regard to the problem in the related art that the exhaust steam of the low-pressure cylinder is directly discharged into the steam condenser, resulting in a large amount of heat energy being wasted, no effective solution has been proposed so far.
[0004] Therefore, it is necessary to improve the related technology to overcome the above-mentioned defects in the related technology. Summary of the invention
[0005] The embodiments of the present application provide a circulating water heating method and device, a storage medium and a computer program product to at least solve the problem in the related art that the exhaust steam of the low-pressure cylinder is directly discharged into the steam condenser, resulting in a large amount of heat energy being wasted.
[0006] According to one aspect of an embodiment of the present application, a method for heating circulating water is provided, comprising: obtaining first thermal energy corresponding to first exhaust steam output by a low-pressure cylinder through a steam heat recovery device, wherein the steam heat recovery device is connected to the low-pressure cylinder; increasing the pressure and temperature of the first exhaust steam by extracting steam from a high-pressure cylinder through an ejector to obtain second exhaust steam, wherein the ejector is connected to the high-pressure cylinder; transferring the first thermal energy and second thermal energy in the second exhaust steam to circulating water of a heat exchanger in a heating station to heat the temperature of the circulating water to a first temperature, wherein the heat exchanger in the heating station is respectively connected to the ejector and the steam heat recovery device.
[0007] In an exemplary embodiment, after the first heat energy and the second heat energy in the second exhaust steam are transferred to the circulating water of the heat exchanger of the heating station to heat the temperature of the circulating water to the first temperature, the method further includes: when the first target object requires heating, the circulating water at the first temperature is transported to the heat storage device of the first target object; when the first target object does not require heating, the circulating water at the first temperature is transported to the steam condenser through an auxiliary cooling heat exchanger, and the temperature of the circulating water at the first temperature is reduced to the second temperature through the steam condenser, wherein the left side of the auxiliary cooling heat exchanger is connected to the heat exchanger of the heating station, and the right side of the auxiliary cooling heat exchanger is connected to the steam condenser.
[0008] In an exemplary embodiment, after the first heat energy and the second heat energy in the second exhaust steam are transferred to the circulating water of the heating station heat exchanger to heat the temperature of the circulating water to the first temperature, the method further includes: transporting the circulating water at the first temperature to a heat storage heat exchanger, wherein the heat storage heat exchanger is connected to the heating station heat exchanger and the heat storage heat exchanger allows the circulating water at the first temperature to be stored; when a first target object requires heating, the circulating water at the first temperature is transported to the heat storage device of the first target object through a heat circulation pump, wherein the heat circulation pump is connected to the heat storage heat exchanger.
[0009] In an exemplary embodiment, before obtaining the first heat energy corresponding to the first exhaust steam output by the low-pressure cylinder through the steam heat recovery device, the method also includes: conveying the first exhaust steam to a filter to filter impurities in the first exhaust steam, wherein the filter is connected to the steam heat recovery device, and the filter is used to perform primary filtration and secondary filtration on the first exhaust steam, the primary filtration includes filtering large particle impurities in the first exhaust steam, and the secondary filtration includes filtering fine particles and suspended matter in the first exhaust steam.
[0010] In an exemplary embodiment, after the first heat energy and the second heat energy in the second exhaust steam are transferred to the circulating water of the heat exchanger of the heating station to heat the temperature of the circulating water to the first temperature, the method further includes: obtaining N temperatures corresponding to N heating devices at the current moment, wherein N is a positive integer, and the N heating devices include at least one of the following: the steam heat recovery device, the ejector, the heating station heat exchanger, the low-pressure cylinder, the high-pressure cylinder, the auxiliary cooling heat exchanger, the steam condenser, the heat storage heat exchanger, the heat circulation pump, and the filter; when some or all of the N temperatures are greater than the temperature threshold, the early warning device of the first heating device corresponding to the some or all temperatures is started.
[0011] In an exemplary embodiment, after starting the early warning device of the first heating equipment corresponding to some or all of the temperatures, the method further includes: generating an early warning report based on the some or all of the temperatures, and encrypting the early warning report; transmitting the encrypted early warning report to a mobile device of a second target object that maintains the N heating equipment, so as to instruct the second target object to maintain the first heating equipment according to the early warning report.
[0012] In an exemplary embodiment, after the first heat energy and the second heat energy in the second exhaust steam are transferred to the circulating water of the heat exchanger of the heating station to heat the temperature of the circulating water to the first temperature, the method further includes: obtaining N pressures corresponding to N heating devices at the current moment, wherein N is a positive integer, and the N heating devices include at least one of the following: the steam heat recovery device, the ejector, the heating station heat exchanger, the low-pressure cylinder, the high-pressure cylinder, the auxiliary cooling heat exchanger, the steam condenser, the heat storage heat exchanger, the heat circulation pump, and the filter; when there are some or all of the pressures greater than the pressure threshold among the N pressures, determine the second heating device corresponding to the some or all of the pressures, and shut down the second heating device.
[0013] According to another aspect of the embodiment of the present application, a computer-readable storage medium is provided, in which a computer program is stored, wherein the computer program is configured to execute the above-mentioned method for heating circulating water when running.
[0014] According to another aspect of the embodiment of the present application, an electronic device is provided, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the circulating water heating method through the computer program.
[0015] According to another aspect of the embodiments of the present application, a computer program product is provided, including a computer program, and when the computer program is executed by a processor, the steps of the method described in each embodiment of the present application are implemented.
[0016] Through this application, the first heat energy corresponding to the first exhaust steam output by the low-pressure cylinder is obtained through a steam heat recovery device, and the pressure and temperature of the first exhaust steam are increased by using the extraction steam of the high-pressure cylinder through an ejector to obtain the second exhaust steam, and the first heat energy and the second heat energy in the second exhaust steam are transferred to the circulating water of the heat exchanger of the heating station to heat the temperature of the circulating water to the first temperature, wherein the steam heat recovery device is connected to the low-pressure cylinder, the ejector is connected to the high-pressure cylinder, and the heat exchanger of the heating station is connected to the ejector and the steam heat recovery device respectively. This solves the problem in the related art that the exhaust steam of the low-pressure cylinder is directly discharged into the steam condenser, resulting in a large amount of heat energy being wasted. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.
[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.
[0019] Figure 1 It is a hardware structure block diagram of a heating terminal of a circulating water heating method according to an embodiment of the present application;
[0020] Figure 2 is a flow chart of a method for heating circulating water according to an embodiment of the present application;
[0021] Figure 3 is a schematic diagram of a method for heating circulating water according to an embodiment of the present application; DETAILED DESCRIPTION
[0022] In order to enable those skilled in the art to better understand the solution of the present application, 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 only 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 ordinary technicians in this field without creative work should fall within the scope of protection of the present application.
[0023] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.
[0024] The method embodiments provided in the embodiments of the present application can be executed in a heating terminal or a similar computing device. Taking the operation on the heating terminal as an example, Figure 1 1 is a hardware structure block diagram of a heating terminal of a circulating water heating method according to an embodiment of the present application. Figure 1 As shown, the heating terminal may include one or more ( Figure 1Only one is shown in the figure) a processor 102 (the processor 102 may include but is not limited to a processing device such as a microprocessor (Central Processing Unit, MCU) or a programmable logic device (Field Programmable Gate Array, FPGA)) and a memory 104 for storing data, wherein the above-mentioned heating terminal may also include a transmission device 106 for communication functions and an input and output device 108. It can be understood by those skilled in the art that Figure 1 The structure shown is for illustration only and does not limit the structure of the above-mentioned heating terminal. Figure 1 More or fewer components as shown, or with Figure 1 Different configurations are shown.
[0025] The memory 104 can be used to store computer programs, for example, software programs and modules of application software, such as the computer program corresponding to the method for heating circulating water in the embodiment of the present application. The processor 102 executes various functional applications and data processing by running the computer program stored in the memory 104, that is, to implement the above method. The memory 104 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 104 may further include a memory remotely arranged relative to the processor 102, and these remote memories may be connected to the heating terminal 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 a combination thereof.
[0026] A wireless network provided by a communication provider of the heating terminal. In one example, the transmission device 106 includes a network adapter (Network Interface Controller, referred to as NIC), which can be connected to other network devices through a base station so as to communicate with the Internet. In one example, the transmission device 106 can be a radio frequency (Radio Frequency, referred to as RF) module, which is used to communicate with the Internet wirelessly.
[0027] In this embodiment, a circulating water heating method is provided, which is applied to the above-mentioned heating terminal. Figure 2 is a flow chart of a circulating water heating method according to an embodiment of the present application, such as Figure 2 As shown, the process includes the following steps:
[0028] Step S202, obtaining first heat energy corresponding to first exhaust steam output by the low-pressure cylinder through a steam heat recovery device, wherein the steam heat recovery device is connected to the low-pressure cylinder;
[0029] Step S204, using an ejector to increase the pressure and temperature of the first exhaust steam by extracting steam from the high-pressure cylinder to obtain second exhaust steam, wherein the ejector is connected to the high-pressure cylinder;
[0030] Step S206, transferring the first heat energy and the second heat energy in the second exhaust steam to the circulating water of the heating station heat exchanger to heat the temperature of the circulating water to a first temperature, wherein the heating station heat exchanger is respectively connected to the ejector and the steam heat recovery device.
[0031] Through the above steps, the first heat energy corresponding to the first exhaust steam output by the low-pressure cylinder is obtained through the steam heat recovery device, wherein the steam heat recovery device is connected to the low-pressure cylinder; the pressure and temperature of the first exhaust steam are increased by using the extraction steam of the high-pressure cylinder through the ejector to obtain the second exhaust steam, wherein the ejector is connected to the high-pressure cylinder; the first heat energy and the second heat energy in the second exhaust steam are transferred to the circulating water of the heat exchanger of the heating station to heat the temperature of the circulating water to the first temperature, wherein the heat exchanger of the heating station is respectively connected to the ejector and the steam heat recovery device. This solves the problem in the related art that the exhaust steam of the low-pressure cylinder is directly discharged into the steam condenser, resulting in a large amount of heat energy being wasted.
[0032] In an exemplary embodiment, after the first heat energy and the second heat energy in the second exhaust steam are transferred to the circulating water of the heat exchanger of the heating station to heat the temperature of the circulating water to the first temperature, the method further includes: when the first target object requires heating, the circulating water at the first temperature is transported to the heat storage device of the first target object; when the first target object does not require heating, the circulating water at the first temperature is transported to the steam condenser through an auxiliary cooling heat exchanger, and the temperature of the circulating water at the first temperature is reduced to the second temperature through the steam condenser, wherein the left side of the auxiliary cooling heat exchanger is connected to the heat exchanger of the heating station, and the right side of the auxiliary cooling heat exchanger is connected to the steam condenser.
[0033] When the first target object needs heating, the circulating water at the first temperature is directly transported to the heat storage device of the target object, wherein the heat storage device includes but is not limited to a heat storage tank, which is used to store heat energy and release it on demand to meet the heating needs of the target object. When the first target object does not need heating, such as in warmer seasons such as spring, summer or autumn. At this time, the circulating water at the first temperature will not be used directly for heating, but will be transmitted to the steam condenser through the auxiliary cooling heat exchanger. The auxiliary cooling heat exchanger is located between the heat exchanger and the steam condenser of the heating station. It can not only utilize the heat of the circulating water, but also assist in condensing the steam. In this process, the heat of the circulating water is used for the condensation of steam, and the latent heat released by the steam during the condensation process is absorbed by the circulating water. The temperature of the circulating water is reduced from the first temperature to the second temperature (i.e., a lower temperature), and the steam is converted into liquid water and enters the circulation system to prepare for the next round of heating.
[0034] In an exemplary embodiment, after the first heat energy and the second heat energy in the second exhaust steam are transferred to the circulating water of the heating station heat exchanger to heat the temperature of the circulating water to the first temperature, the method further includes: transporting the circulating water at the first temperature to a heat storage heat exchanger, wherein the heat storage heat exchanger is connected to the heating station heat exchanger and the heat storage heat exchanger allows the circulating water at the first temperature to be stored; when a first target object requires heating, the circulating water at the first temperature is transported to the heat storage device of the first target object through a heat circulation pump, wherein the heat circulation pump is connected to the heat storage heat exchanger.
[0035] The heat storage heat exchanger is connected to the heat exchanger of the heating station, and when circulating water with a higher temperature (first temperature) is available, the circulating water at the first temperature will be transported to the heat storage heat exchanger. The design of the heat storage heat exchanger allows the storage of circulating water at the first temperature, so that it can respond quickly and provide thermal energy when the first target object needs it. Specifically in the case of heating, when the first target object (such as a residential or commercial building) needs heating, the circulating water at the first temperature in the heat storage heat exchanger will be transmitted to the heat storage device of the target object through a heat circulation pump connected to the heat storage heat exchanger. Among them, the role of the heat circulation pump is to ensure that the circulating water can move with sufficient pressure and flow to meet the heating needs. This process not only provides instant heating, but also ensures the effective use of thermal energy, avoiding energy waste caused by mismatch between heat source and demand.
[0036] In an exemplary embodiment, before obtaining the first heat energy corresponding to the first exhaust steam output by the low-pressure cylinder through the steam heat recovery device, the method also includes: conveying the first exhaust steam to a filter to filter impurities in the first exhaust steam, wherein the filter is connected to the steam heat recovery device, and the filter is used to perform primary filtration and secondary filtration on the first exhaust steam, the primary filtration includes filtering large particle impurities in the first exhaust steam, and the secondary filtration includes filtering fine particles and suspended matter in the first exhaust steam.
[0037] The first exhaust steam, usually refers to the steam discharged from the low-pressure cylinder of the steam turbine, carries various impurities mixed from the boiler and piping system, such as particulate matter, suspended matter, etc., which, if not handled, will cause damage to the subsequent heat recovery and condensing equipment. In the primary filtration stage, the filter first removes large particle impurities from the first exhaust steam. This process usually uses a physical barrier, such as a filter or a filter, to capture and block large particles and prevent them from entering the subsequent heat recovery system. The purpose of the primary filtration is to reduce the physical wear on the heat recovery heat exchanger and maintain its heat exchange efficiency. Next, the filter will perform a secondary filtration, the purpose of which is to remove fine particles and suspended matter from the first exhaust steam. This stage of filtration is more refined, and usually uses more complex filter media or technologies, such as deep filtration, membrane filtration, etc., to capture those tiny impurities that may pass through the primary filtration. Secondary filtration is crucial to improving the purity of steam because it ensures that even the smallest impurities will not affect the performance of the system or form deposits during the condensation process, affecting the condensation efficiency. Through this two-stage filtration process, the first exhaust steam is purified, which not only protects the steam heat recovery unit from damage by impurities, but also ensures the efficient operation of the steam condensation process.
[0038] In an exemplary embodiment, after the first heat energy and the second heat energy in the second exhaust steam are transferred to the circulating water of the heat exchanger of the heating station to heat the temperature of the circulating water to the first temperature, the method further includes: obtaining N temperatures corresponding to N heating devices at the current moment, wherein N is a positive integer, and the N heating devices include at least one of the following: the steam heat recovery device, the ejector, the heating station heat exchanger, the low-pressure cylinder, the high-pressure cylinder, the auxiliary cooling heat exchanger, the steam condenser, the heat storage heat exchanger, the heat circulation pump, and the filter; when some or all of the N temperatures are greater than the temperature threshold, the early warning device of the first heating device corresponding to the some or all temperatures is started.
[0039] By continuously monitoring the temperature of the heating equipment in this embodiment, the heating terminal can detect abnormal conditions in a timely manner. The set temperature threshold is used as a safety and efficiency indicator to determine whether the operating status of the heating equipment exceeds the normal range. If in the N temperature monitoring data, it is found that some or all of the temperatures exceed the preset temperature threshold, this indicates that the heating equipment is at risk of overheating, performance degradation, or is experiencing unexpected thermal changes. At this time, the early warning device corresponding to the first heating equipment that exceeds the temperature threshold is immediately activated. The activation of the early warning device is an immediate response mechanism designed to alert operators to possible problems so that necessary maintenance or adjustment measures can be taken. The above maintenance or adjustment measures include but are not limited to checking the heat exchange efficiency of the equipment, clearing blocked pipes, adjusting the operating conditions to reduce the heat load, or checking whether heat accumulation in the heat energy conversion process is caused by some reason.
[0040] In an exemplary embodiment, after starting the early warning device of the first heating equipment corresponding to some or all of the temperatures, the method further includes: generating an early warning report based on the some or all of the temperatures, and encrypting the early warning report; transmitting the encrypted early warning report to a mobile device of a second target object that maintains the N heating equipment, so as to instruct the second target object to maintain the first heating equipment according to the early warning report.
[0041] When the heating terminal detects that the temperature of some or all of N heating devices exceeds the preset temperature threshold, a detailed early warning report will be automatically generated. This report contains the device information that exceeds the temperature threshold, the specific abnormal temperature value, and the possible potential risk analysis, providing key data support for subsequent maintenance work. Considering the importance of data security and privacy protection, the heating terminal will encrypt the generated early warning report. The encrypted early warning report will then be transmitted to the mobile device of the second target object (usually the operation and maintenance personnel or professional service team) responsible for maintaining these heating equipment. After receiving the early warning report, the second target object inspects and maintains the abnormal first heating equipment according to the content of the report.
[0042] In an exemplary embodiment, after the first heat energy and the second heat energy in the second exhaust steam are transferred to the circulating water of the heat exchanger of the heating station to heat the temperature of the circulating water to the first temperature, the method further includes: obtaining N pressures corresponding to N heating devices at the current moment, wherein N is a positive integer, and the N heating devices include at least one of the following: the steam heat recovery device, the ejector, the heating station heat exchanger, the low-pressure cylinder, the high-pressure cylinder, the auxiliary cooling heat exchanger, the steam condenser, the heat storage heat exchanger, the heat circulation pump, and the filter; when there are some or all of the pressures greater than the pressure threshold among the N pressures, determine the second heating device corresponding to the some or all of the pressures, and shut down the second heating device.
[0043] The pressure value corresponding to the heating equipment in this embodiment at the current moment is continuously monitored and compared with the preset pressure threshold. When it is detected that some or all of the N pressures exceed the preset pressure threshold, the second heating equipment corresponding to these abnormal pressures is determined. In order to protect the second heating equipment from further damage, the heating terminal will automatically shut down these identified second heating equipment. This is a rapid response mechanism designed to prevent equipment damage or system failure caused by abnormal pressure and ensure the safety of the entire heating system. After shutting down the second heating equipment, maintenance personnel will conduct necessary inspections and maintenance to determine the specific cause of the abnormal pressure and take appropriate measures to repair or adjust it. The above measures include but are not limited to clearing blocked pipes, checking the sealing of equipment, adjusting working conditions to reduce the heat load of equipment, etc.
[0044] In order to better understand the process of the above-mentioned circulating water heating method, the above-mentioned circulating water heating method is described below in combination with an optional embodiment, but it is not used to limit the technical solution of the embodiment of the present application.
[0045] Figure 3 is a schematic diagram of a circulating water heating method according to an embodiment of the present application, such as Figure 3 As shown, specifically including the following:
[0046] Before obtaining the first heat energy corresponding to the first exhaust steam output by the low-pressure cylinder through the steam heat recovery device (equivalent to the exhaust steam heat recovery heat exchanger in the figure), the first exhaust steam is transported to the filter to filter the impurities in the first exhaust steam, wherein the first exhaust steam is the steam discharged from the low-pressure cylinder of the steam turbine, and usually carries various impurities mixed from the boiler and the pipeline system, such as particulate matter, suspended matter, etc., which, if not handled, will cause damage to the subsequent heat recovery and condensation equipment. In the primary filtration stage, the filter first removes large particle impurities in the first exhaust steam. This process usually uses physical barriers, such as filters or screens, to capture and block large particles to prevent them from entering the subsequent heat recovery system. Next, the filter will perform secondary filtration, the purpose of which is to remove fine particles and suspended matter in the first exhaust steam. The filtration at this stage is more refined, and usually uses more complex filter media or technologies, such as deep filtration, membrane filtration, etc., to capture those tiny impurities that may pass through in the primary filtration.
[0047] After filtering the first exhaust steam, the first heat energy carried in the first exhaust steam output by the low-pressure cylinder is captured by the steam heat recovery device, and then the first exhaust steam is ejected by using the extraction steam of the high-pressure cylinder, thereby increasing the pressure and temperature of the first exhaust steam, wherein the steam heat recovery device is directly connected to the low-pressure cylinder, and the ejector is connected to the high-pressure cylinder. This process converts the first exhaust steam into the second exhaust steam, increases the heat energy of the first exhaust steam, and makes the first exhaust steam more suitable for heat exchange and heating needs. After the first exhaust steam is converted into the second exhaust steam, the first heat energy of the first exhaust steam and the second heat energy of the second exhaust steam are received and converted by the heat exchanger of the heating station, and the first heat energy and the second heat energy are transferred to the circulating water, and the circulating water is heated to the required heating temperature (i.e., the first temperature), wherein the heat exchanger of the heating station (equivalent to the heat exchanger of the primary heat network in the figure) is connected to the ejector and the steam heat recovery device. Through this conversion, the heat energy carried by the circulating water can be directly used for heating, thereby improving the utilization efficiency of heat energy.
[0048] When the first target object (such as a residential area or industrial facility) needs heating, the heat exchanger of the heating station directly transports the circulating water heated to the first temperature to the heat storage device of the first target object to meet the immediate heating demand. When the first target object does not need heating, the circulating water at the first temperature is transported to the steam condenser (equivalent to the condenser in the figure) through the auxiliary cooling heat exchanger, wherein the first side of the auxiliary cooling heat exchanger is connected to the heat exchanger of the heating station, and the second side is connected to the steam condenser. Such a position design enables the auxiliary cooling heat exchanger to receive the high-temperature circulating water output by the heat exchanger of the heating station, and release the heat of the circulating water at the first temperature in the non-heating season, helping the temperature of the circulating water at the first temperature to drop to the second temperature. The steam condenser receives the circulating water from the auxiliary cooling heat exchanger and further cools the circulating water at the second temperature. At the same time, the cooled circulating water can be reused to form a closed-loop thermal energy management process.
[0049] In addition, when the first target object does not need heating, the circulating water at the first temperature can also be transported to the heat storage heat exchanger. The heat storage heat exchanger is closely connected to the heat exchanger of the heating station, which means that when the circulating water is heated, it can flow directly into the heat storage heat exchanger for storage without losing heat on the way. Therefore, when the user does not need heating, the thermal energy in the circulating water can be collected and stored. When the first target object needs heating, the heat circulation pump in the heating terminal will start and transport the first temperature circulating water stored in the heat storage heat exchanger to the heat storage device at the user end. These heat storage devices include but are not limited to radiators, hot air heating terminals or any device for dissipating heat energy. The heat circulation pump is also directly connected to the heat storage heat exchanger, which ensures that the heat circulation pump can accurately extract circulating water from the heat storage heat exchanger and efficiently transport it to the user end.
[0050] In summary, this embodiment improves the thermal energy quality of the first exhaust steam through the ejector, the steam heat recovery device and the heating station heat exchanger realize the effective conversion and utilization of thermal energy, and the auxiliary cooling heat exchanger and the steam condenser ensure the thermal energy balance and temperature management of the system under different working conditions. At the same time, by storing the heated circulating water in the heat storage heat exchanger, the on-demand supply of thermal energy is achieved. When heating is not needed, the thermal energy can be saved; when the user needs heating, the thermal energy is quickly and accurately transported to the target location through the heat circulation pump, which not only saves energy but also improves the flexibility and efficiency of heating.
[0051] Through the description of the above implementation methods, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), and includes a number of instructions for a terminal device (which can be a mobile phone, computer, server, or network device, etc.) to execute the methods of each embodiment of the present application.
[0052] An embodiment of the present application further provides a computer-readable storage medium, in which a computer program is stored, wherein the computer program is configured to execute the steps of any of the above method embodiments when running.
[0053] Optionally, in this embodiment, the storage medium may be configured to store a computer program for performing the following steps:
[0054] S1, obtaining first heat energy corresponding to first exhaust steam output by a low-pressure cylinder through a steam heat recovery device, wherein the steam heat recovery device is connected to the low-pressure cylinder;
[0055] S2, using an ejector to extract steam from the high-pressure cylinder to increase the pressure and temperature of the first exhaust steam to obtain second exhaust steam, wherein the ejector is connected to the high-pressure cylinder;
[0056] S3, transferring the first heat energy and the second heat energy in the second exhaust steam to the circulating water of the heat exchanger of the heating station to heat the temperature of the circulating water to the first temperature, wherein the heat exchanger of the heating station is respectively connected to the ejector and the steam heat recovery device.
[0057] In an exemplary embodiment, the computer-readable storage medium may include, but is not limited to, various media that can store computer programs, such as a USB flash drive, a read-only memory (ROM), a random access memory (RAM), a mobile hard disk, a magnetic disk or an optical disk.
[0058] For specific examples in this embodiment, reference may be made to the examples described in the above embodiments and exemplary implementation modes, and this embodiment will not be described in detail herein.
[0059] An embodiment of the present application further provides an electronic device, including a memory and a processor, wherein a computer program is stored in the memory, and the processor is configured to run the computer program to execute the steps in any one of the above method embodiments.
[0060] Optionally, in this embodiment, the processor may be configured to perform the following steps through a computer program:
[0061] S1, obtaining first heat energy corresponding to first exhaust steam output by a low-pressure cylinder through a steam heat recovery device, wherein the steam heat recovery device is connected to the low-pressure cylinder;
[0062] S2, using an ejector to extract steam from the high-pressure cylinder to increase the pressure and temperature of the first exhaust steam to obtain second exhaust steam, wherein the ejector is connected to the high-pressure cylinder;
[0063] S3, transferring the first heat energy and the second heat energy in the second exhaust steam to the circulating water of the heat exchanger of the heating station to heat the temperature of the circulating water to the first temperature, wherein the heat exchanger of the heating station is respectively connected to the ejector and the steam heat recovery device.
[0064] In an exemplary embodiment, the electronic device may further include a transmission device and an input / output device, wherein the transmission device is connected to the processor, and the input / output device is connected to the processor.
[0065] An embodiment of the present application further provides a computer program product, comprising a non-volatile computer-readable storage medium, wherein the non-volatile computer-readable storage medium stores a computer program product, and when the computer program is executed by a processor, the steps of the method described in each embodiment of the present application are implemented.
[0066] Optionally, in this embodiment, the above computer program may be configured to implement the following steps when executed by a processor:
[0067] S1, obtaining first heat energy corresponding to first exhaust steam output by a low-pressure cylinder through a steam heat recovery device, wherein the steam heat recovery device is connected to the low-pressure cylinder;
[0068] S2, using an ejector to extract steam from the high-pressure cylinder to increase the pressure and temperature of the first exhaust steam to obtain second exhaust steam, wherein the ejector is connected to the high-pressure cylinder;
[0069] S3, transferring the first heat energy and the second heat energy in the second exhaust steam to the circulating water of the heat exchanger of the heating station to heat the temperature of the circulating water to the first temperature, wherein the heat exchanger of the heating station is respectively connected to the ejector and the steam heat recovery device.
[0070] For specific examples in this embodiment, reference may be made to the examples described in the above embodiments and exemplary implementation modes, and this embodiment will not be described in detail herein.
[0071] Obviously, those skilled in the art should understand that the above modules or steps of the present application can be implemented by a general computing device, they can be concentrated on a single computing device, or distributed on a network composed of multiple computing devices, they can be implemented by a program code executable by a computing device, so that they can be stored in a storage device and executed by the computing device, and in some cases, the steps shown or described can be executed in a different order from that herein, or they can be made into individual integrated circuit modules, or multiple modules or steps therein can be made into a single integrated circuit module for implementation. Thus, the present application is not limited to any specific combination of hardware and software.
[0072] The above is only a preferred implementation of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.
Claims
1. A method for heating circulating water, characterized in that: include: Acquiring first heat energy corresponding to first exhaust steam output by the low-pressure cylinder through a steam heat recovery device, wherein the steam heat recovery device is connected to the low-pressure cylinder; Using the extraction steam of the high-pressure cylinder through an ejector to increase the pressure and temperature of the first exhaust steam to obtain second exhaust steam, wherein the ejector is connected to the high-pressure cylinder; The first heat energy and the second heat energy in the second exhaust steam are transferred to the circulating water of the heating station heat exchanger to heat the temperature of the circulating water to a first temperature, wherein the heating station heat exchanger is connected to the ejector and the steam heat recovery device respectively.
2. The method for heating circulating water according to claim 1, characterized in that: After transferring the first heat energy and the second heat energy in the second exhaust steam to the circulating water of the heat exchanger of the heating station to heat the temperature of the circulating water to the first temperature, the method further includes: When the first target object needs heating, the circulating water at the first temperature is delivered to the heat storage device of the first target object; When the first target object does not need heating, the circulating water at the first temperature is transmitted to the steam condenser through the auxiliary cooling heat exchanger, and the temperature of the circulating water at the first temperature is reduced to a second temperature through the steam condenser, wherein the left side of the auxiliary cooling heat exchanger is connected to the heating station heat exchanger, and the right side of the auxiliary cooling heat exchanger is connected to the steam condenser.
3. The method for heating circulating water according to claim 1, characterized in that: After transferring the first heat energy and the second heat energy in the second exhaust steam to the circulating water of the heat exchanger of the heating station to heat the temperature of the circulating water to the first temperature, the method further includes: delivering the circulating water at the first temperature to a heat storage heat exchanger, wherein the heat storage heat exchanger is connected to the heat supply station heat exchanger and the heat storage heat exchanger allows the circulating water at the first temperature to be stored; When the first target object needs heating, the circulating water at the first temperature is transmitted to the heat storage device of the first target object through a heat circulation pump, wherein the heat circulation pump is connected to the heat storage heat exchanger.
4. The method for heating circulating water according to claim 1, characterized in that: Before obtaining the first heat energy corresponding to the first exhaust steam output by the low-pressure cylinder through the steam heat recovery device, the method further includes: The first exhaust steam is transported to a filter to filter impurities in the first exhaust steam, wherein the filter is connected to the steam heat recovery device, and the filter is used to perform primary filtration and secondary filtration on the first exhaust steam, wherein the primary filtration includes filtering large particle impurities in the first exhaust steam, and the secondary filtration includes filtering fine particles and suspended matter in the first exhaust steam.
5. The method for heating circulating water according to claim 1, characterized in that: After transferring the first heat energy and the second heat energy in the second exhaust steam to the circulating water of the heat exchanger of the heating station to heat the temperature of the circulating water to the first temperature, the method further includes: Obtain N temperatures corresponding to N heating devices at the current moment, wherein N is a positive integer, and the N heating devices include at least one of the following: the steam heat recovery device, the ejector, the heating station heat exchanger, the low-pressure cylinder, the high-pressure cylinder, the auxiliary cooling heat exchanger, the steam condenser, the heat storage heat exchanger, the heat circulation pump, and the filter; When some or all of the N temperatures are greater than the temperature threshold, the early warning device of the first heating equipment corresponding to the some or all of the temperatures is activated.
6. The method for heating circulating water according to claim 5, characterized in that: After the early warning device of the first heating equipment corresponding to the partial or all temperatures is activated, the method further includes: Generate a warning report according to the partial or all temperatures, and encrypt the warning report; The encrypted early warning report is transmitted to a mobile device of a second target object that maintains the N heating devices, so as to instruct the second target object to maintain the first heating device according to the early warning report.
7. The method for heating circulating water according to claim 1, characterized in that: After transferring the first heat energy and the second heat energy in the second exhaust steam to the circulating water of the heat exchanger of the heating station to heat the temperature of the circulating water to the first temperature, the method further includes: Obtain N pressures corresponding to N heating equipment at the current moment, wherein N is a positive integer, and the N heating equipment includes at least one of the following: the steam heat recovery device, the ejector, the heating station heat exchanger, the low-pressure cylinder, the high-pressure cylinder, the auxiliary cooling heat exchanger, the steam condenser, the heat storage heat exchanger, the heat circulation pump, and the filter; In the case that some or all of the N pressures are greater than the pressure threshold, the second heating device corresponding to the some or all of the pressures is determined, and the second heating device is turned off.
8. A computer-readable storage medium, characterized in that: The computer-readable storage medium includes a stored program, wherein the program executes the method according to any one of claims 1 to 7 when executed.
9. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the steps of the method described in any one of claims 1 to 7 are implemented.
10. A computer program product, comprising a computer program, characterized in that When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 7 are implemented.