CN107726427B - Temperature control method of heat storage device and heat supply system - Google Patents
Temperature control method of heat storage device and heat supply system Download PDFInfo
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D11/00—Central heating systems using heat accumulated in storage masses
- F24D11/002—Central heating systems using heat accumulated in storage masses water heating system
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
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- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
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Abstract
本申请属于控制系统技术领域，具体涉及一种蓄热装置的温度控制方法及供热系统。蓄热装置的温度控制方法包括：在预设条件下，启动加热装置对所述蓄热装置内的蓄热介质进行加热；获取加热装置进口处和出口处的蓄热介质的温度；根据蓄热装置出口温度与阈值温度温差和加热装置加热温度的比较调节连接加热装置和蓄热装置的蓄热水泵的流量,所述蓄热介质从所述加热装置流向所述蓄热装置的流速变大，使得所述蓄热装置内的蓄热介质温度达到阈值温度。所述供热系统蓄热期间所述加热装置无跳电动作，无重复加热过程，加热周期缩短，减少了能量损耗，减少了设备磨损。
The application belongs to the technical field of control systems, and in particular relates to a temperature control method and a heat supply system of a heat storage device. The temperature control method of the heat storage device includes: under preset conditions, starting the heating device to heat the heat storage medium in the heat storage device; obtaining the temperature of the heat storage medium at the inlet and outlet of the heating device; The comparison between the outlet temperature of the device and the temperature difference between the threshold temperature and the heating temperature of the heating device adjusts the flow rate of the heat storage pump connected to the heating device and the heat storage device, and the flow rate of the heat storage medium from the heating device to the heat storage device becomes larger, Make the temperature of the heat storage medium in the heat storage device reach the threshold temperature. During the heat storage period of the heat supply system, the heating device has no electrical jump action, no repeated heating process, shortens the heating cycle, reduces energy loss, and reduces equipment wear.
Description
技术领域technical field
本申请属于控制系统技术领域，具体涉及一种蓄热装置的温度控制方法及供热系统。The application belongs to the technical field of control systems, and in particular relates to a temperature control method and a heat supply system of a heat storage device.
背景技术Background technique
供热系统多以加热装置及蓄热装置配套使用，加热装置通过加热蓄热介质将热量传送给蓄热装置；通常，蓄热装置容积一定，蓄热介质温度越高则供热系统存储的热量越多。The heating system is mostly used with a heating device and a heat storage device. The heating device transfers heat to the heat storage device by heating the heat storage medium; usually, the heat storage device has a certain volume, and the higher the temperature of the heat storage medium, the higher the heat stored in the heat supply system. more.
供热系统控制的蓄热装置的最高温度难以达到，加热装置会因为超过卸载温进行自动保护，加热开关跳闸，此时蓄热装置内蓄热介质还没有达到最高温度或刚暂时达到最高温度；故完成整个蓄热过程往往需要加热装置重复多次跳、合闸动作，造成供热系统加热时间延长，热损耗相应增大，增加设备的磨损，缩短设备的使用周期的问题。The maximum temperature of the heat storage device controlled by the heating system is difficult to reach, the heating device will automatically protect because the unloading temperature is exceeded, and the heating switch trips. At this time, the heat storage medium in the heat storage device has not reached the maximum temperature or has just temporarily reached the maximum temperature; Therefore, completing the entire heat storage process often requires the heating device to repeatedly jump and close, resulting in prolonged heating time of the heating system, a corresponding increase in heat loss, increased wear and tear of the equipment, and shortened the service life of the equipment.
发明内容Contents of the invention
有鉴于此，本申请实施例提供一种蓄热装置的温度控制方法及供热系统，以解决目前供热系统加热时间延长，热损耗相应增大，增加设备的磨损，缩短设备的使用周期的问题。In view of this, the embodiment of the present application provides a temperature control method of a heat storage device and a heat supply system to solve the problem that the heating time of the current heating system is prolonged, the heat loss is correspondingly increased, the wear and tear of the equipment is increased, and the service life of the equipment is shortened. question.
本申请实施例的第一方面提供了一种蓄热装置的温度控制方法，包括：The first aspect of the embodiments of the present application provides a temperature control method for a heat storage device, including:
在预设条件下，启动加热装置对所述蓄热装置内的蓄热介质进行加热；Under preset conditions, start the heating device to heat the heat storage medium in the heat storage device;
获取加热装置进口处和出口处的蓄热介质的温度；Obtain the temperature of the heat storage medium at the inlet and outlet of the heating device;
根据蓄热装置出口温度与阈值温度温差和加热装置加热温度的比较调节连接加热装置和蓄热装置的蓄热水泵的流量，所述蓄热介质从所述加热装置流向所述蓄热装置的流速变大，使得所述蓄热装置内的蓄热介质温度达到阈值温度。According to the comparison between the temperature difference between the outlet temperature of the heat storage device and the threshold temperature and the heating temperature of the heating device, the flow rate of the heat storage heat pump connected to the heating device and the heat storage device is adjusted, and the flow rate of the heat storage medium flowing from the heating device to the heat storage device becomes larger, so that the temperature of the heat storage medium in the heat storage device reaches the threshold temperature.
进一步地，所述预设条件为当前处于谷电时段且所述蓄热装置内蓄热介质未达到阈值温度。Further, the preset condition is that it is currently in a valley power period and the heat storage medium in the heat storage device has not reached a threshold temperature.
进一步地，所述获取加热装置进口处和出口处的加热介质的温度包括：Further, the obtaining the temperature of the heating medium at the inlet and outlet of the heating device includes:
通过安装在所述加热装置出口管道上的传感器获取所述蓄热装置出口处的蓄热介质的温度；Obtaining the temperature of the heat storage medium at the outlet of the heat storage device through a sensor installed on the outlet pipeline of the heating device;
通过安装在所述加热装置进口管道上的传感器获取所述蓄热装置进口处的蓄热介质的温度。The temperature of the heat storage medium at the inlet of the heat storage device is acquired through a sensor installed on the inlet pipe of the heating device.
进一步地，所述根据所述加热装置进口处和出口处的蓄热介质的温度调节连接所述加热装置和所述蓄热装置的蓄热水泵的流量包括：Further, adjusting the flow rate of the heat storage pump connecting the heating device and the heat storage device according to the temperature of the heat storage medium at the inlet and outlet of the heating device includes:
根据所述加热装置进口处和出口处的蓄热介质的温度以及所述蓄热装置的阈值温度获得流量控制系数；Obtaining a flow control coefficient according to the temperature of the thermal storage medium at the inlet and outlet of the heating device and the threshold temperature of the thermal storage device;
根据所述流量控制系数控制所述蓄热水泵的流量。The flow of the heat storage pump is controlled according to the flow control coefficient.
进一步地，所述根据所述蓄热装置进口处和出口处的蓄热介质的温度以及所述蓄热装置的阈值温度获得流量控制系数包括：Further, the obtaining the flow control coefficient according to the temperature of the heat storage medium at the inlet and outlet of the heat storage device and the threshold temperature of the heat storage device includes:
其中，所述S表示所述流量控制系数，所述T表示所述蓄热装置的阈值温度，所述t1表示所述加热装置出口处的蓄热介质温度，所述t2表示所述加热装置进口处的蓄热介质温度。Wherein, the S represents the flow control coefficient, the T represents the threshold temperature of the heat storage device, the t1 represents the temperature of the heat storage medium at the outlet of the heating device, and the t2 represents the heating The temperature of the heat storage medium at the inlet of the device.
进一步地，所述根据所述流量控制系数控制所述蓄热水泵的流量包括：Further, the controlling the flow of the heat storage pump according to the flow control coefficient includes:
其中，所述G表示所述蓄热水泵的流量大小；所述Q表示所述加热装置的蓄热功率；所述Δt表示所述加热装置进水口处与出水口处蓄热介质的温度差，Δt＝|t1-t2|。Wherein, the G represents the flow rate of the heat storage pump; the Q represents the heat storage power of the heating device; the Δt represents the temperature difference between the heat storage medium at the water inlet and the water outlet of the heating device, Δt=|t 1 -t 2 |.
进一步地，所述蓄热装置的温度控制方法还包括：Further, the temperature control method of the heat storage device further includes:
根据所述蓄热介质的比热容、初始温度、阈值温度和预设供热需求计算并设置所述蓄热装置内蓄热介质的体积：Calculate and set the volume of the heat storage medium in the heat storage device according to the specific heat capacity, initial temperature, threshold temperature and preset heating demand of the heat storage medium:
其中，所述V表示所述蓄热装置内蓄热介质的体积，所述M表示所述预设供热需求的热量，所述C表示所述蓄热介质的比热容，所述ρ表示所述蓄热介质密度，所述t3表示所述蓄热介质初始温度；Wherein, the V represents the volume of the heat storage medium in the heat storage device, the M represents the heat required by the preset heat supply, the C represents the specific heat capacity of the heat storage medium, and the ρ represents the heat storage medium density, said t3 represents the initial temperature of said heat storage medium;
所述预设供热需求的热量为在峰电时段对所述蓄热装置内所述蓄热介质蓄热的总热量需求。The heat demanded by the preset heat supply is the total heat demand for heat storage of the heat storage medium in the heat storage device during the peak power period.
本申请实施例的第二方面提供了一种供热系统，包括：The second aspect of the embodiments of the present application provides a heating system, including:
加热装置、蓄热装置、蓄热水泵、第一温度传感器、第二温度传感器、控制器以及供热管道；A heating device, a thermal storage device, a heat storage pump, a first temperature sensor, a second temperature sensor, a controller and a heating pipeline;
所述控制器分别与所述加热装置、所述蓄热水泵、所述第一温度传感器以及所述第二温度传感器电性连接；The controller is electrically connected to the heating device, the heat storage pump, the first temperature sensor, and the second temperature sensor;
所述加热装置出口通过所述供热管道连接所述蓄热装置进口，所述蓄热装置出口通过所述供热管道连接所述加热装置进口；所述蓄热水泵连接在所述蓄热装置出口和所述加热装置进口之间的所述供热管道上；所述第一温度传感器安装在所述蓄热装置出口一侧的供热管道内部，所述第二温度传感器安装在所述加热装置出口一侧的供热管道内部；The outlet of the heating device is connected to the inlet of the heat storage device through the heat supply pipeline, and the outlet of the heat storage device is connected to the inlet of the heating device through the heat supply pipeline; the heat storage pump is connected to the heat storage device On the heating pipeline between the outlet and the heating device inlet; the first temperature sensor is installed inside the heating pipeline on the outlet side of the heat storage device, and the second temperature sensor is installed on the heating Inside the heating pipe on the outlet side of the device;
所述控制器通过所述第一温度传感器获取所述加热装置的进口处的蓄热介质温度；所述控制器通过所述第二温度传感器获取所述加热装置的出口处的蓄热介质温度；所述控制器将所述加热装置的出口处的蓄热介质温度与所述加热装置的进口处的蓄热介质温度的差值和所述蓄热装置的出口处的蓄热介质温度与所述阈值温度的差值进行比较运算得控制系数；所述控制器根据所述流量控制系数控制所述蓄热水泵的流量，所述蓄热介质从所述加热装置流向所述蓄热装置的流速改变，使得所述蓄热装置内的蓄热介质温度逐步达到阈值温度。The controller obtains the temperature of the heat storage medium at the inlet of the heating device through the first temperature sensor; the controller obtains the temperature of the heat storage medium at the outlet of the heating device through the second temperature sensor; The controller calculates the difference between the temperature of the thermal storage medium at the outlet of the heating device and the temperature of the thermal storage medium at the inlet of the heating device and the temperature of the thermal storage medium at the outlet of the thermal storage device and the temperature of the thermal storage medium at the inlet of the heating device The difference of the threshold temperature is compared and calculated to obtain the control coefficient; the controller controls the flow rate of the heat storage pump according to the flow control coefficient, and the flow rate of the heat storage medium from the heating device to the heat storage device changes , so that the temperature of the heat storage medium in the heat storage device gradually reaches the threshold temperature.
本申请实施例技术方案与现有技术相比存在的有益效果是：Compared with the prior art, the technical solution of the embodiment of the present application has the following beneficial effects:
本申请实施例通过温度传感器获取加热装置进口处和所述加热装置出口处的蓄热介质的温度；根据所述加热装置进口处和出口处的蓄热介质的温度和阈值温度调节连接所述加热装置和所述蓄热装置的蓄热水泵的流量，所述蓄热介质从所述加热装置流向所述蓄热装置的流速变大，使得所述蓄热装置内的蓄热介质温度达到阈值温度；所述蓄热水泵及时调节所述加热装置与所述蓄热装置之间的流量大小，保证所述蓄热装置出水温度与阈值温度的温差在加热装置加热温度的可控安全范围内，从而保证所述蓄热装置在所述加热装置做功情况下，平稳蓄热，直至所述蓄热装置内蓄热介质的温度达到阈值温度；蓄热期间所述加热装置无跳电动作，无重复加热过程，加热周期缩短，减少了能量损耗，减少了设备磨损。In this embodiment of the present application, temperature sensors are used to obtain the temperature of the thermal storage medium at the inlet of the heating device and at the outlet of the heating device; The flow rate of the heat storage pump of the device and the heat storage device, the flow rate of the heat storage medium from the heating device to the heat storage device becomes larger, so that the temperature of the heat storage medium in the heat storage device reaches the threshold temperature The heat storage pump adjusts the flow rate between the heating device and the heat storage device in time to ensure that the temperature difference between the outlet water temperature of the heat storage device and the threshold temperature is within the controllable safety range of the heating temperature of the heating device, thereby Ensure that the heat storage device can store heat stably when the heating device is doing work, until the temperature of the heat storage medium in the heat storage device reaches the threshold temperature; during the heat storage period, the heating device has no tripping action and no repeated heating process, the heating cycle is shortened, energy loss is reduced, and equipment wear is reduced.
附图说明Description of drawings
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。In order to more clearly illustrate the technical solutions in the embodiments of the present application, the accompanying drawings that need to be used in the descriptions of the embodiments or the prior art will be briefly introduced below. Obviously, the accompanying drawings in the following description are only for the present application For some embodiments, those of ordinary skill in the art can also obtain other drawings based on these drawings without paying creative efforts.
图1是本申请一实施例提供的一种蓄热装置的温度控制方法的控制流程图；Fig. 1 is a control flow chart of a temperature control method for a heat storage device provided by an embodiment of the present application;
图2是本申请一实施例提供的供热系统的示意框图。Fig. 2 is a schematic block diagram of a heating system provided by an embodiment of the present application.
其中，图中各附图标记：Wherein, each reference sign in the figure:
1-控制器；2-加热装置；3-蓄热装置；4-蓄热水泵；5-第一温度传感器；6-第二温度传感器；7-加热装置进口供热管道；8-加热装置出口供热管道。1-controller; 2-heating device; 3-heat storage device; 4-heat storage pump; 5-first temperature sensor; 6-second temperature sensor; 7-heating device inlet heating pipe; 8-heating device outlet heating pipes.
具体实施方式Detailed ways
以下描述中，为了说明而不是为了限定，提出了诸如特定系统结构、技术之类的具体细节，以便透彻理解本申请实施例。然而，本领域的技术人员应当清楚，在没有这些具体细节的其它实施例中也可以实现本申请。在其它情况中，省略对众所周知的系统、装置、电路以及方法的详细说明，以免不必要的细节妨碍本申请的描述。In the following description, specific details such as specific system structures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.
为了说明本申请所述的技术方案，下面通过具体实施例来进行说明。In order to illustrate the technical solutions described in this application, specific examples are used below to illustrate.
本申请实施例第一方面提供了一种蓄热装置的温度控制方法，The first aspect of the embodiment of the present application provides a temperature control method for a heat storage device,
参见图1所示，本申请一实施例提供的一种蓄热装置的温度控制方法的控制流程图。Referring to FIG. 1 , a control flow diagram of a temperature control method for a heat storage device provided by an embodiment of the present application.
如图所示该方法可以包括以下步骤：As shown in the figure, the method may include the following steps:
步骤S101，在预设条件下，启动加热装置对蓄热装置内的蓄热介质进行加热。Step S101, under preset conditions, start the heating device to heat the heat storage medium in the heat storage device.
所述预设条件为处于谷电时段且所述蓄热装置内蓄热介质未达到阈值温度。The preset condition is during a valley power period and the heat storage medium in the heat storage device has not reached a threshold temperature.
具体的，该方法用于在谷电时段通过所述蓄热介质进行蓄热，在峰电时段通过所述蓄热介质供热。Specifically, the method is used to store heat through the heat storage medium during a valley power period, and supply heat through the heat storage medium during a peak power period.
所述蓄热介质为液态，通过所述蓄热水泵和所述供热管道流动在所述加热装置中和所述蓄热装置中；所述蓄热介质在所述加热装置内受热，所述蓄热介质在所述蓄热装置内蓄热。The heat storage medium is in liquid state, and flows in the heating device and the heat storage device through the heat storage pump and the heat supply pipeline; the heat storage medium is heated in the heating device, and the heat storage medium is heated in the heating device. The heat storage medium stores heat in the heat storage device.
所述阈值温度一般是指所述蓄热装置内所述蓄热介质所能达到的最高温度，也可以是所述控制器设置的所述蓄热装置内所述蓄热介质的目标温度；The threshold temperature generally refers to the highest temperature that the heat storage medium in the heat storage device can reach, and may also be the target temperature of the heat storage medium in the heat storage device set by the controller;
所述最高温度为所述加热装置不发生跳电，所述蓄热装置内所述蓄热介质蓄热所能达到的最高温度；The highest temperature is the highest temperature that can be reached by the heat storage medium in the heat storage device without a power trip in the heating device;
所述目标温度在所述蓄热装置内所述蓄热介质的初始温度和所述蓄热装置内蓄热介质所能达到的最高温度之间的任意值。The target temperature is any value between the initial temperature of the heat storage medium in the heat storage device and the maximum temperature that the heat storage medium in the heat storage device can reach.
步骤S102，通过温度传感器获取加热装置进口处和出口处的蓄热介质的温度。Step S102, acquiring the temperature of the heat storage medium at the inlet and outlet of the heating device through the temperature sensor.
所述获取加热装置进口处和出口处的蓄热介质的温度包括：Said obtaining the temperature of the thermal storage medium at the inlet and outlet of the heating device includes:
通过安装在所述加热装置出口管道上的传感器获取所述蓄热装置出口处的蓄热介质的温度；Obtaining the temperature of the heat storage medium at the outlet of the heat storage device through a sensor installed on the outlet pipeline of the heating device;
通过安装在所述加热装置进口管道上的传感器获取所述蓄热装置进口处的蓄热介质的温度。The temperature of the heat storage medium at the inlet of the heat storage device is acquired through a sensor installed on the inlet pipe of the heating device.
所述传感器为温度传感器。The sensor is a temperature sensor.
步骤S103，根据蓄热装置出口温度与阈值温度温差和加热装置加热温度的比较调节连接加热装置和蓄热装置的蓄热水泵的流量；Step S103, adjusting the flow rate of the heat storage pump connected to the heating device and the heat storage device according to the comparison between the outlet temperature of the heat storage device and the temperature difference between the threshold temperature and the heating temperature of the heating device;
具体的，根据所述加热装置进口处和出口处的蓄热介质的温度以及所述蓄热装置的阈值温度获得流量控制系数；根据所述流量控制系数控制所述蓄热水泵的流量。Specifically, the flow control coefficient is obtained according to the temperature of the heat storage medium at the inlet and outlet of the heating device and the threshold temperature of the heat storage device; the flow of the heat storage pump is controlled according to the flow control coefficient.
所述流量控制系数The flow control coefficient
其中，所述S表示所述流量控制系数，所述T表示所述蓄热装置的阈值温度，所述t1表示所述加热装置出口处的蓄热介质温度，所述t2表示所述加热装置进口处的蓄热介质温度。Wherein, the S represents the flow control coefficient, the T represents the threshold temperature of the heat storage device, the t1 represents the temperature of the heat storage medium at the outlet of the heating device, and the t2 represents the heating The temperature of the heat storage medium at the inlet of the device.
当所述流量控制系数趋于1但不小于1时，所述控制器开始控制蓄热水泵使蓄热水泵增大流量并保证系统安全运行；所述蓄热介质从加热装置流向蓄热装置的流速变大，使得蓄热装置内的蓄热介质温度逐步达到所述阈值温度。When the flow control coefficient tends to 1 but not less than 1, the controller starts to control the heat storage pump to increase the flow rate of the heat storage pump and ensure the safe operation of the system; the heat storage medium flows from the heating device to the heat storage device The flow rate becomes larger, so that the temperature of the heat storage medium in the heat storage device gradually reaches the threshold temperature.
具体的，根据所述流量控制系数控制所述蓄热水泵的流量大小为
其中，所述G表示所述蓄热水泵的流量大小，单位t/h；所述Q表示所述加热装置的蓄热功率，单位W；所述Δt表示所述加热装置进口处与出口处蓄热介质的温度差，Δt＝|t1-t2|，单位℃。Wherein, the G represents the flow rate of the heat storage pump in t/h; the Q represents the heat storage power of the heating device in W; the Δt represents the energy stored at the inlet and outlet of the heating device The temperature difference of the heat medium, Δt=|t 1 -t 2 |, unit °C.
根据
本申请实施例通过温度传感器获取加热装置进口处和所述加热装置出口处的蓄热介质的温度；根据所述加热装置进口处和出口处的蓄热介质的温度和阈值温度调节连接所述加热装置和所述蓄热装置的蓄热水泵的流量，所述蓄热介质从所述加热装置流向所述蓄热装置的流速变大，使得所述蓄热装置内的蓄热介质温度达到阈值温度；所述蓄热水泵及时调节所述加热装置与所述蓄热装置之间的流量大小，保证所述蓄热装置在所述加热装置做功情况下，平稳蓄热，直至所述蓄热装置内蓄热介质的温度达到阈值温度；蓄热期间所述加热装置无跳电动作，无重复加热过程，加热周期缩短，减少了能量损耗，减少了设备磨损。In this embodiment of the present application, temperature sensors are used to obtain the temperature of the thermal storage medium at the inlet of the heating device and at the outlet of the heating device; The flow rate of the heat storage pump of the device and the heat storage device, the flow rate of the heat storage medium from the heating device to the heat storage device becomes larger, so that the temperature of the heat storage medium in the heat storage device reaches the threshold temperature ; The heat storage pump adjusts the flow rate between the heating device and the heat storage device in time to ensure that the heat storage device can store heat stably when the heating device does work until the heat storage device The temperature of the heat storage medium reaches the threshold temperature; during the heat storage period, the heating device has no electrical jump action, no repeated heating process, shortens the heating cycle, reduces energy loss, and reduces equipment wear.
作为本申请另一实施例，在启动加热装置对所述加热装置内的蓄热介质进行加热之前，还需要所述控制器计算并设置蓄热装置容纳蓄热介质的体积。As another embodiment of the present application, before starting the heating device to heat the heat storage medium in the heating device, the controller also needs to calculate and set the volume of the heat storage device to accommodate the heat storage medium.
根据所述蓄热介质的比热容、初始温度、阈值温度和预设供热需求计算并设置所述蓄热装置内蓄热介质的体积：Calculate and set the volume of the heat storage medium in the heat storage device according to the specific heat capacity, initial temperature, threshold temperature and preset heating demand of the heat storage medium:
其中，所述V表示所述蓄热装置内蓄热介质的体积，所述M表示所述预设供热需求的热量，所述C表示所述蓄热介质的比热容，所述ρ表示所述蓄热介质密度，所述t3表示所述蓄热介质初始温度；所述预设供热需求的热量为在峰电时段对所述蓄热装置内所述蓄热介质蓄热的总热量需求。Wherein, the V represents the volume of the heat storage medium in the heat storage device, the M represents the heat required by the preset heat supply, the C represents the specific heat capacity of the heat storage medium, and the ρ represents the Density of the heat storage medium, the t3 represents the initial temperature of the heat storage medium; the heat demanded by the preset heat supply is the total heat demand for heat storage of the heat storage medium in the heat storage device during the peak power period .
所述外接散热单元的预设供热需求的热量M可以是根据统计记录未优化控制方法的相同规格的供热系统在峰电时段通过外接散热单元对外散热的总热量的平均值，也可以是所述供热系统通过控制器统计记录的单次峰电时段通过散热单元对外散热的总热量计算的平均值，并在下一谷电时段更新设置。The heat M of the preset heat supply demand of the external heat dissipation unit can be the average value of the total heat that is dissipated by the external heat dissipation unit during the peak power period of the heating system of the same specification without optimizing the control method according to statistical records, or it can be The heating system calculates the average value of the total heat dissipated by the heat dissipation unit during a single peak power period statistically recorded by the controller, and updates the settings in the next valley power period.
所述外接散热单元的预设供热需求的热量为在整个峰电时段外接散热单元对所述蓄热装置的内蓄热介质蓄热的总热量需求。The heat demanded by the external heat dissipation unit is the total heat demand of the external heat dissipation unit to store heat in the internal heat storage medium of the heat storage device during the entire peak power period.
进一步地，在预设条件下，所述加热装置加热工作，所述控制器控制所述蓄热装置内所述蓄热介质达到阈值温度；非预设条件下，所述蓄热装置对外散热耗热。Further, under preset conditions, the heating device works, and the controller controls the heat storage medium in the heat storage device to reach a threshold temperature; under non-preset conditions, the external heat dissipation of the heat storage device hot.
具体的，所述预设条件为所述供热系统处于谷电时段且所述蓄热装置内蓄热介质未达到阈值温度。所述非预设条件是在峰电时段，所述供热系统的所述加热装置停止工作。Specifically, the preset condition is that the heating system is in a valley power period and the heat storage medium in the heat storage device does not reach a threshold temperature. The non-preset condition is that the heating device of the heating system stops working during the peak power period.
本申请另一实施例补充的蓄热装置的温度控制方法在谷电时段蓄热，在峰电时段散热；所述控制器通过计算获得所述蓄热装置内所需存储的所述蓄热介质的体积，确定蓄热量，使得外接耗能和蓄热热量都得到了的最大优化的使用利用，并节约成本。Another embodiment of the present application supplements the temperature control method of the heat storage device to store heat during the off-peak period and dissipate heat during the peak period; the controller obtains the heat storage medium that needs to be stored in the heat storage device through calculation Determine the volume of heat storage, so that both external energy consumption and heat storage heat can be optimally utilized and cost saved.
应理解，上述实施例中各步骤的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请实施例的实施过程构成任何限定。It should be understood that the sequence numbers of the steps in the above embodiments do not mean the order of execution, and the execution order of each process should be determined by its function and internal logic, and should not constitute any limitation to the implementation process of the embodiment of the present application.
图2是本申请一实施例提供的供热系统的示意框图，为了便于说明，仅示出与本申请实施例相关的部分。Fig. 2 is a schematic block diagram of a heating system provided by an embodiment of the present application. For convenience of description, only parts related to the embodiment of the present application are shown.
所述供热系统包括：The heating system includes:
控制器1、加热装置2、蓄热装置3、蓄热水泵4、第一温度传感器5、第二温度传感器6、加热装置进口供热管道7以及加热装置出口供热管道8；Controller 1, heating device 2,
所述控制器1与所述加热装置2、所述蓄热水泵4、所述第一温度传感器5以及所述第二温度传感器6电性连接；The controller 1 is electrically connected to the heating device 2, the heat storage pump 4, the first temperature sensor 5 and the second temperature sensor 6;
所述加热装置2出口通过所述供热管道7连接所述蓄热装置3进口，所述蓄热装置3出口通过所述供热管道7连接所述加热装置2进口；所述蓄热水泵4连接在所述蓄热装置3出口和所述加热装置2进口之间的所述供热管道7上；所述第一温度传感器5安装在所述蓄热装置3出口一侧的供热管道内部，所述第二温度传感器6安装在所述加热装置2出口一侧的供热管道内部；所述加热装置2、所述蓄热装置3、所述蓄热水泵4、所述加热装置进口供热管道7以及所述加热装置出口供热管道8之中流动有蓄热介质；The outlet of the heating device 2 is connected to the inlet of the
所述加热装置2进口与所述蓄热装置3出口之间连接所用供热管道为加热装置进口供热管道7，所述加热装置2出口与所述蓄热装置3进口之间连接所用供热管道为加热装置出口供热管道8；所述第一温度传感器5安装在所述蓄热装置3出口一侧的供热管道内部，所述第二温度传感器6安装在所述加热装置2出口一侧的供热管道内部；The heat supply pipe used to connect the inlet of the heating device 2 and the outlet of the
进一步地，所述加热装置进口处蓄热介质温度等于所述蓄热装置出口处蓄热介质温度；所述加热装置出口处蓄热介质温度等于所述蓄热装置进口处蓄热介质温度。Further, the temperature of the heat storage medium at the inlet of the heating device is equal to the temperature of the heat storage medium at the outlet of the heat storage device; the temperature of the heat storage medium at the outlet of the heating device is equal to the temperature of the heat storage medium at the inlet of the heat storage device.
所述加热装置进口供热管道即为蓄热装置出口供热管道，所述加热装置出口供热管道即为蓄热装置进口供热管道。The heat supply pipeline at the inlet of the heating device is the heat supply pipeline at the outlet of the heat storage device, and the heat supply pipeline at the outlet of the heating device is the heat supply pipeline at the inlet of the heat storage device.
所述蓄热水泵可以在所述加热装置进口供热管道上任意位置，也可以在所述加热装置出口供热管道上任意位置；The heat storage pump can be located at any position on the inlet heating pipeline of the heating device, or at any position on the outlet heating pipeline of the heating device;
进一步地，所述控制器可以是单片机，也可以是可编程逻辑控制器。Further, the controller may be a single-chip microcomputer or a programmable logic controller.
所述单片机(Microcontrollers)是一种集成电路芯片，是采用超大规模集成电路技术把具有数据处理能力的中央处理器(Central Processing Unit，CPU)、随机存储器(Random Access Memory，RAM)、只读存储器(Read-Only Memory，ROM)、多种I/O口和中断系统、定时器/计数器等功能(可能还包括显示驱动电路、脉宽调制电路、模拟多路转换器、A/D转换器等电路)集成到一块硅片上构成的一个小而完善的微型计算机系统。Described single-chip microcomputer (Microcontrollers) is a kind of integrated circuit chip, is the central processing unit (Central Processing Unit, CPU), random access memory (Random Access Memory, RAM), read-only memory (Read-Only Memory, ROM), various I/O ports and interrupt system, timer/counter and other functions (may also include display drive circuit, pulse width modulation circuit, analog multiplexer, A/D converter, etc. Circuit) integrated into a silicon chip to form a small but complete microcomputer system.
所述可编程逻辑控制器(Programmable Logic Controller，PLC)是种专门为在工业环境下应用而设计的数字运算操作电子系统。它采用一种可编程的存储器，在其内部存储执行逻辑运算、顺序控制、定时、计数和算术运算等操作的指令，通过数字式或模拟式的输入输出来控制各种类型的机械设备或生产过程。The programmable logic controller (Programmable Logic Controller, PLC) is a digital operation electronic system specially designed for application in industrial environments. It uses a programmable memory to store instructions for performing logic operations, sequence control, timing, counting, and arithmetic operations, and controls various types of mechanical equipment or production through digital or analog input and output. process.
进一步地，所述蓄热装置的进口处的蓄热介质温度等于所述加热装置出口处的蓄热介质温度；所述蓄热装置的出口处的蓄热介质温度等于所述加热装置进口处的蓄热介质温度。Further, the temperature of the heat storage medium at the inlet of the heat storage device is equal to the temperature of the heat storage medium at the outlet of the heating device; the temperature of the heat storage medium at the outlet of the heat storage device is equal to the temperature of the heat storage medium at the inlet of the heating device heat storage medium temperature.
具体的，所述第一温度传感器可以安装在所述蓄热装置出口和所述加热装置进口之间连接的供热管道上的任意位置：即所述第一温度传感器可以位于所述蓄热装置出口附近的供热管道内，可以位于所述蓄热水泵附近的供热管道内，也可以位于所述加热装置进口附近的供热管道内；Specifically, the first temperature sensor can be installed at any position on the heating pipeline connected between the outlet of the heat storage device and the inlet of the heating device: that is, the first temperature sensor can be located at the In the heating pipeline near the outlet, it can be located in the heating pipeline near the heat storage pump, or in the heating pipeline near the inlet of the heating device;
所述第二温度传感器可以安装在所述蓄热装置进口和所述加热装置出口之间连接的供热管道上的任意位置：即所述第二温度传感器可以位于所述蓄热装置进口附近的供热管道内，也可以位于所述加热装置出口附近的供热管道内；The second temperature sensor can be installed at any position on the heating pipeline connected between the inlet of the heat storage device and the outlet of the heating device: that is, the second temperature sensor can be located near the inlet of the heat storage device In the heating pipeline, it can also be located in the heating pipeline near the outlet of the heating device;
所述第一温度传感器和所述第二温度传感器可以采用同一型号。The first temperature sensor and the second temperature sensor may be of the same type.
进一步地，所述加热装置可以为电锅炉；所述蓄热水泵为变频蓄热水泵；Further, the heating device may be an electric boiler; the heat storage pump is a variable frequency heat storage pump;
所述电锅炉也称电加热锅炉、电热锅炉，顾名思义，它是以电力为能源并将其转化成为热能，从而经过锅炉转换，向外输出具有一定热能的蒸汽、高温水或有机热载体的锅炉设备。The electric boiler is also called an electric heating boiler or an electric heating boiler. As the name suggests, it uses electricity as energy and converts it into heat energy, so that it can output steam, high-temperature water or organic heat carrier with certain heat energy through boiler conversion. equipment.
所述蓄热水泵可以为变频蓄热水泵，所述变频蓄热水泵就是在普通水泵的基础上辅以单向阀、气压罐、变频器、恒压恒温供水控制器、传感器等管阀或电气元件组成具有全自动功能，并且自动恒压的变频蓄热供水装置。The heat storage pump may be a variable frequency heat storage pump, and the frequency conversion heat storage pump is based on an ordinary water pump supplemented with check valves, air pressure tanks, frequency converters, constant pressure and temperature water supply controllers, sensors and other pipe valves or electrical appliances. The components are composed of a frequency conversion heat storage water supply device with automatic function and automatic constant pressure.
进一步地，所述蓄热装置根据需要容纳蓄热介质的体积选择容积型号。Further, the heat storage device selects a volume type according to the volume required to accommodate the heat storage medium.
具体的，所述蓄热装置容积型号大于或等于所述控制器计算所得的所述蓄热装置需要容纳蓄热介质的体积；所述蓄热装置具体容纳蓄热介质的体积由控制器计算并设置。Specifically, the volume model of the heat storage device is greater than or equal to the volume of the heat storage device calculated by the controller to accommodate the heat storage medium; the specific volume of the heat storage device to accommodate the heat storage medium is calculated by the controller and determined. set up.
进一步地，确定所述电锅炉功率，确定所述变频蓄热水泵功率。Further, the power of the electric boiler is determined, and the power of the frequency conversion heat storage pump is determined.
所述控制器根据所述外接散热单元的预设供热需求的热量及所述谷电时段所述加热系统可以连续工作的时长选择所述电锅炉功率及所述蓄热水泵功率，保证所述电锅炉及所述变频蓄热水泵工作满足需要。The controller selects the power of the electric boiler and the power of the heat storage pump according to the preset heating demand of the external heat dissipation unit and the duration that the heating system can work continuously during the valley power period, so as to ensure that the The work of the electric boiler and the frequency conversion heat storage pump meets the requirements.
进一步地，所述蓄热装置为蓄热水箱；所述蓄热介质为液态蓄热介质，存储在所述蓄热水箱内；所述蓄热液态介质可以为水。Further, the heat storage device is a heat storage tank; the heat storage medium is a liquid heat storage medium stored in the heat storage tank; the heat storage liquid medium may be water.
具体的，所述控制器通过所述第一温度传感器获取所述加热装置的进口处的蓄热介质温度；所述控制器通过所述第二温度传感器获取所述加热装置的出口处的蓄热介质温度；所述控制器将所述加热装置的出口处的蓄热介质温度与所述加热装置的进口处的蓄热介质温度的差值和所述蓄热装置的出口处的蓄热介质温度与所述阈值温度的差值进行比较运算得控制系数；所述控制器获取所述加热装置蓄热功率和所述蓄热水泵的流量传输大小；所述控制器根据所述控制系数、所述加热装置蓄热功率及所述变频蓄热水泵的流量传输大小控制所述蓄热水泵的实际工作流量传输大小；所述蓄热水泵根据实际工作需要变化及时调节流量传输大小，直至所述蓄热装置内蓄热介质达到所述阈值温度；所述控制器计算并设置所述蓄热装置容纳蓄热介质的体积；谷电时段，所述供热系统的电锅炉加热工作，控制器控制所述蓄热水箱内水达到最高温度；峰电时段，所述蓄热水箱散热耗热。Specifically, the controller obtains the temperature of the heat storage medium at the inlet of the heating device through the first temperature sensor; the controller obtains the temperature of the heat storage medium at the outlet of the heating device through the second temperature sensor. Medium temperature; the controller calculates the difference between the temperature of the heat storage medium at the outlet of the heating device and the temperature of the heat storage medium at the inlet of the heating device and the temperature of the heat storage medium at the outlet of the heat storage device The control coefficient is calculated by comparing the difference with the threshold temperature; the controller obtains the heat storage power of the heating device and the flow transmission of the heat storage pump; The heat storage power of the heating device and the flow transmission of the frequency conversion heat storage pump control the actual working flow transmission of the heat storage pump; the heat storage pump adjusts the flow transmission in time according to changes in actual work needs until the heat storage The heat storage medium in the device reaches the threshold temperature; the controller calculates and sets the volume of the heat storage device to accommodate the heat storage medium; during the off-peak power period, the electric boiler of the heating system is heated, and the controller controls the The water in the heat storage tank reaches the highest temperature; during the peak power period, the heat storage tank dissipates heat.
以上所述实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例技术方案的精神和范围，均应包含在本申请的保护范围之内。The above-described embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still implement the foregoing embodiments Modifications to the technical solutions described in the examples, or equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the application, and should be included in the Within the protection scope of this application.
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| CN109373439B (en) * | 2018-11-01 | 2020-08-18 | 河北建筑工程学院 | An adjustment method that minimizes the adjustment time of the heating system |
| CN110285482B (en) * | 2019-07-05 | 2021-02-02 | 珠海格力电器股份有限公司 | Heat storage control method and device of heat storage type heating equipment and readable storage medium |
| CN110926023B (en) * | 2019-12-04 | 2021-01-15 | 珠海格力电器股份有限公司 | Heating system and control method thereof |
| CN112032821A (en) * | 2020-09-11 | 2020-12-04 | 河北建筑工程学院 | A Quick Method to Determine Indoor Heat Consumption |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007322013A (en) * | 2006-05-30 | 2007-12-13 | Sekisui Chem Co Ltd | Heat storage-hot water combination heating system |
| KR20090051431A (en) * | 2007-11-19 | 2009-05-22 | 한국에너지기술연구원 | Solar device with variable oil temperature control device and control method |
| CN105240897A (en) * | 2015-11-03 | 2016-01-13 | 朱杰 | Heat-storage peak regulating device used for power supply system |
| CN105980778A (en) * | 2014-03-18 | 2016-09-28 | 松下知识产权经营株式会社 | Heat storage device and hot water generation device provided with same |
| CN106594858A (en) * | 2017-03-02 | 2017-04-26 | 唐山铸锐科技有限公司 | Electric heat storage system and control method |
| WO2017145238A1 (en) * | 2016-02-22 | 2017-08-31 | 三菱電機株式会社 | Storage type hot water supplying system |
| CN206556110U (en) * | 2017-02-27 | 2017-10-13 | 北京光华创世科技有限责任公司 | A kind of accumulation of heat heating system |
-
2017
- 2017-10-20 CN CN201710986324.0A patent/CN107726427B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007322013A (en) * | 2006-05-30 | 2007-12-13 | Sekisui Chem Co Ltd | Heat storage-hot water combination heating system |
| KR20090051431A (en) * | 2007-11-19 | 2009-05-22 | 한국에너지기술연구원 | Solar device with variable oil temperature control device and control method |
| CN105980778A (en) * | 2014-03-18 | 2016-09-28 | 松下知识产权经营株式会社 | Heat storage device and hot water generation device provided with same |
| CN105240897A (en) * | 2015-11-03 | 2016-01-13 | 朱杰 | Heat-storage peak regulating device used for power supply system |
| WO2017145238A1 (en) * | 2016-02-22 | 2017-08-31 | 三菱電機株式会社 | Storage type hot water supplying system |
| CN206556110U (en) * | 2017-02-27 | 2017-10-13 | 北京光华创世科技有限责任公司 | A kind of accumulation of heat heating system |
| CN106594858A (en) * | 2017-03-02 | 2017-04-26 | 唐山铸锐科技有限公司 | Electric heat storage system and control method |
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