CN116007200A - Control method, device, storage medium, processor and system for boiler - Google Patents
Control method, device, storage medium, processor and system for boiler Download PDFInfo
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- CN116007200A CN116007200A CN202211684869.3A CN202211684869A CN116007200A CN 116007200 A CN116007200 A CN 116007200A CN 202211684869 A CN202211684869 A CN 202211684869A CN 116007200 A CN116007200 A CN 116007200A
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Abstract
The embodiment of the application provides a control method, a control device, a storage medium, a processor and a control system for a boiler. The method comprises the following steps: acquiring a first outlet water temperature of a first water outlet; under the condition that the water temperature of the first outlet is smaller than a first target temperature, acquiring the current water temperature of the warm water tank, the pipeline specification parameters and the environment temperature of a water outlet pipe, wherein the water outlet pipe refers to a connecting pipeline between the warm water tank and the first water outlet; determining a heat loss value of the water in the water outlet pipe according to the current water temperature, the first target temperature, the pipeline specification parameters and the ambient temperature; determining a temperature loss value of water in the water outlet pipe according to the heat loss value; determining a second target temperature of the warm water tank according to the temperature loss value and the first target temperature; and determining the heating power of the boiler according to the second target temperature so as to adjust the water temperature in the warm water tank to the second target temperature within a preset time, thereby improving the heat efficiency of the boiler, reducing the energy consumption of the boiler and prolonging the service life of the boiler.
Description
Technical Field
The present application relates to the field of industrial boilers, and in particular, to a control method, device, storage medium, processor and system for a boiler.
Background
With the continuous development of industry, more and more manufacturing enterprises adopt boilers to intensively convey water so as to relieve the shortage of production demands and living demands. And because the water temperature required by each water use place in the manufacturing enterprise is uneven, and a special water use pipeline is required to be paved for each water use place. Therefore, when water is intensively transported by a boiler, it is difficult to ensure that the temperature of the water reaches the temperature demand thereof when the water reaches the water. In this case, the boiler can continuously run under full power, the thermal efficiency of the boiler is low, the heat loss is large, and the service life of the boiler is not prolonged.
Disclosure of Invention
The embodiment of the application aims to provide a control method, a device, a storage medium, a processor and a system for a boiler.
In order to achieve the above object, a first aspect of the present application provides a control method for a boiler, a water outlet of the boiler being connected to a warm water tank, the warm water tank including a first water outlet, the control method comprising:
acquiring a first outlet water temperature of a first water outlet;
Under the condition that the water temperature of the first outlet is smaller than a first target temperature, acquiring the current water temperature of the warm water tank, the pipeline specification parameters and the environment temperature of a water outlet pipe, wherein the water outlet pipe refers to a connecting pipeline between the warm water tank and the first water outlet;
determining a heat loss value of the water in the water outlet pipe according to the current water temperature, the first target temperature, the pipeline specification parameters and the ambient temperature;
determining a temperature loss value of water in the water outlet pipe according to the heat loss value;
determining a second target temperature of the warm water tank according to the temperature loss value and the first target temperature;
and determining the heating power of the boiler according to the second target temperature so as to adjust the water temperature in the warm water tank to the second target temperature within a preset time.
In this embodiment of the present application, the number of first water outlets is plural, and determining the second target temperature of the warm water tank according to the temperature loss value and the first target temperature includes: determining a heat loss value of the water in each water outlet pipe according to the current water temperature, the first target temperature corresponding to each first water outlet, the pipeline specification parameters of the water outlet pipe between each first water outlet and the warm water tank and the ambient temperature; determining a temperature loss value of the water in each water outlet pipe according to the heat loss value of the water in each water outlet pipe; and determining a second target temperature of the warm water tank according to the temperature loss value in each water outlet pipe and the first target temperature corresponding to each first water outlet.
In this embodiment of the present application, determining the second target temperature of the warm water tank according to the temperature loss value in each water outlet pipe and the first target temperature corresponding to each first water outlet includes: determining the average value of temperature loss in all water outlet pipes; determining a plurality of candidate target temperatures for the warm water tank according to the temperature loss average value and the first target temperature corresponding to each first water outlet; and determining the average value of all candidate target temperatures as a second target temperature of the warm water tank.
In this embodiment of the application, determining the heat loss value of the water for use in each water outlet pipe according to the current water temperature, the first target temperature corresponding to each first water outlet, the pipeline specification parameter of the water outlet pipe between each first water outlet and the warm water tank, and the ambient temperature includes:
determining a residual heat loss value of the water pipe according to the current water temperature, a first target temperature corresponding to the first water outlet and pipeline specification parameters of a water outlet pipe between the first water outlet and the warm water tank for each first water outlet; determining a heat loss conveying value of the water pipe according to a first target temperature corresponding to the first water outlet, a pipeline specification parameter of a water outlet pipe between the first water outlet and the warm water tank and an ambient temperature for each first water outlet; the sum of the residual heat loss value and the transport heat loss value of each water outlet pipe is determined as the heat loss value of the water in each water outlet pipe.
In the present embodiment, the residual heat loss value is determined by the formula (1):
wherein Q is r Refers to the residual heat loss value, c refers to the specific heat capacity of water, ρ refers to the density of water, pi refers to the circumference ratio, d 1 The inner diameter of the pipeline of the water outlet pipe corresponding to the first water outlet, l the length of the pipeline of the water outlet pipe corresponding to the first water outlet, t w Refers to a first target temperature, t, corresponding to a first water outlet c Refers to the current water temperature of the warm water tank.
In the present embodiment, the delivery heat loss value is determined by the formula (2):
wherein Q is t Refers to heat loss, pi refers to circumference ratio, l refers to pipeline length of water outlet pipe corresponding to first water outlet, t w Refers to a first target temperature, t, corresponding to a first water outlet a Refers to the ambient temperature, h w Refers to the convection heat exchange coefficient of water in the water outlet pipe corresponding to the first water outlet, d 1 Refers to the inner diameter d of a pipeline of a water outlet pipe corresponding to the first water outlet 1 Refers to the outer diameter lambda of the pipeline of the water outlet pipe corresponding to the first water outlet 1 Refers to the heat conductivity coefficient lambda of the pipe of the water outlet pipe corresponding to the first water outlet 2 Refers to the heat conduction coefficient, d, of the heat insulation material of the water outlet pipe corresponding to the first water outlet 3 Refers to the outer diameter h of the heat insulation material of the water outlet pipe corresponding to the first water outlet a Refers to the convection heat exchange coefficient of the air outside the water outlet pipe corresponding to the first water outlet.
In the present embodiment, the temperature loss value is determined by the formula (3):
Q＝Q r +Q t ＝cmT (3)
wherein Q is the heat loss value, Q r Refers to the residual heat loss value, Q t Refers to the transport heat loss, c refers to the specific heat capacity of water, m refers to the mass of water, and T refers to the temperature loss value.
In an embodiment of the present application, determining the heating power of the boiler according to the second target temperature includes: determining a temperature difference between the second target temperature and the current water temperature; determining a heating heat value required by the boiler heating water according to the temperature difference value; and determining the heating power of the boiler according to the heating heat quantity value.
In this embodiment of the present application, the warm water tank further includes a second water outlet, the second water outlet is connected with the boiler, and the control method further includes: determining a water quantity difference between the water storage quantity and the preset water storage quantity under the condition that the current water temperature is smaller than the preset temperature and the water storage quantity of water in the warm water tank is larger than the preset water storage quantity; controlling the warm water tank to deliver water with water quantity difference to the boiler through the second water outlet; the boiler is controlled to operate according to the preset power so that the warm water tank reaches the preset temperature.
A second aspect of the present application provides a machine-readable storage medium having instructions stored thereon, which when executed by a processor, cause the processor to be configured to perform the control method for a boiler described above.
A third aspect of the present application provides a processor configured to perform the control method for a boiler described above.
A fourth aspect of the present application provides a control device for a boiler, comprising a processor as described above.
A fifth aspect of the present application provides a control system for a boiler, the control system comprising:
the warm water tank is used for storing water and comprises a first water outlet;
the boiler is used for adjusting the water temperature in the warm water tank according to the heating power, and the water outlet of the boiler is connected with the warm water tank; and
the control device for the boiler is described above.
In this embodiment of the present application, the number of the first water outlets is plural.
In an embodiment of the present application, the warm water tank further includes: the second water outlet is used for conveying water in the warm water tank to the boiler and is connected with the boiler.
According to the technical scheme, the temperature loss value from the warm water tank to the first water outlet is considered, the second target temperature of the warm water tank is determined according to the temperature loss value, the heating power of the boiler is determined according to the second target temperature, the water temperature in the warm water tank can be adjusted to the second target temperature within the preset time, the first outlet water temperature can be ensured to reach the first target temperature, the thermal efficiency of the boiler is greatly improved, the energy consumption of the boiler is reduced, and the service life of the boiler is prolonged.
Additional features and advantages of embodiments of the present application will be set forth in the detailed description that follows.
Drawings
The accompanying drawings are included to provide a further understanding of embodiments of the present application and are incorporated in and constitute a part of this specification, illustrate embodiments of the present application and together with the description serve to explain, without limitation, the embodiments of the present application. In the drawings:
FIG. 1 schematically shows a flow diagram of a control method for a boiler according to an embodiment of the present application;
FIG. 2 schematically illustrates a system block diagram of a control system for a boiler according to an embodiment of the present application;
FIG. 3 schematically illustrates a system architecture diagram of a control system for a boiler according to yet another embodiment of the present application;
fig. 4 schematically shows an internal structural diagram of a computer device according to an embodiment of the present application.
Reference numerals
1. Boiler 2, boiler water outlet 3, warm water tank
4. Warm water outlet 5, hot water pump 6 and outlet water
7. Boiler water inlet 8, circulating pump 9 and temperature control system center
10. Cold water inlet 11, cold water pump 12, cold water tank
Detailed Description
For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it should be understood that the specific implementations described herein are only for illustrating and explaining the embodiments of the present application, and are not intended to limit the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present application based on the embodiments herein.
Fig. 1 schematically shows a flow diagram of a control method for a boiler according to an embodiment of the present application. As shown in fig. 1, in an embodiment of the present application, there is provided a control method for a boiler, including the steps of:
And step 103, determining the heat loss value of the water in the water outlet pipe according to the current water temperature, the first target temperature, the pipeline specification parameters and the ambient temperature.
And 104, determining the temperature loss value of the water in the water outlet pipe according to the heat loss value.
And 106, determining the heating power of the boiler according to the second target temperature so as to adjust the water temperature in the warm water tank to the second target temperature within a preset time.
A boiler may refer to a boiler for industrial production. For example, the boiler may be a steam boiler, a hot water boiler, and an organic heat carrier furnace. The boiler comprises a water outlet. The water outlet of the boiler is connected with a warm water tank. The warm water tank may be used for storing water, the warm water tank comprising a first water outlet. The first water outlet may be a water outlet of the pointer to the user. When the boiler is controlled, the processor can acquire the first outlet water temperature of the first water outlet. For example, a temperature sensor may be provided at the first water outlet, which may detect a first outlet water temperature of the first water outlet and send the first outlet water temperature to a processor, which may obtain the first outlet water temperature. The processor may then compare the first outlet water temperature to a first target temperature. The first target temperature may be a target temperature of the first water outlet. The first target temperature may be customized according to the actual situation.
And under the condition that the first outlet water temperature is smaller than the first target temperature, the processor can acquire the current water temperature of the warm water tank, the pipeline specification parameters of the water outlet pipe and the environment temperature. For example, a temperature sensor may be provided in the warm water tank, which may detect a real-time temperature of water in the warm water tank and send the temperature in the warm water tank to the processor, which may obtain a current water temperature of the warm water tank. The water outlet pipe is a connecting pipeline between the warm water tank and the first water outlet. The pipeline specification parameters of the water outlet pipe can comprise the pipeline inner diameter, the pipeline outer diameter, the pipeline length, the pipe heat conductivity coefficient, the heat insulation material outer diameter, the air convection heat transfer coefficient outside the water outlet pipe and the water convection heat transfer coefficient in the water outlet pipe. The warm water tank is connected with the first water outlet through the water outlet pipe, and the water outlet pipe has a certain pipeline length. Therefore, when water in the warm water tank is conveyed to the first water outlet through the water outlet pipe, certain heat loss can be generated. For example, the heat loss may include heat loss of water inside and outside the outlet pipe. Heat loss inside the outlet pipe may refer to heat loss remaining in the outlet pipe. The heat loss outside the water outlet pipe refers to the heat loss of transportation caused by the water transportation distance.
The processor can determine the heat loss value of the water in the water outlet pipe according to the current water temperature, the first target temperature, the pipeline specification parameters of the water outlet pipe corresponding to the first water outlet and the environment temperature. The processor may determine a temperature loss value for the water in the outlet pipe based on the heat loss value. The temperature loss value refers to a value of temperature decrease when the current water in the warm water tank is delivered to the first water outlet according to the current water temperature. Thus, the processor can determine a second target temperature of the warm water tank based on the temperature loss value and the first target temperature. Specifically, the target temperature of the warm water tank is the same as the first target temperature of the first water outlet without taking into account heat loss of the warm water tank to the first water outlet. In practice, however, there will be heat loss from the warm water tank to the first water outlet, and therefore, the processor may determine the sum of the first target temperature and the temperature loss value as the second target temperature of the warm water tank, taking into account the heat loss from the warm water tank to the first water outlet. For example, if the first target temperature of the first water outlet is 70 ℃, and the temperature loss value of the water in the warm water tank to be delivered to the first water outlet is 8 ℃ according to the current water temperature, the second target temperature of the warm water tank can be determined to be 78 ℃, and at this time, if the water is delivered from the warm water tank to the first water outlet, the first target temperature of the first water outlet can be ensured to be 70 ℃ which is originally set as far as possible. Further, the processor may determine a heating power of the boiler according to the second target temperature to adjust the water temperature in the warm water tank to the second target temperature within a preset time. If the temperature of the water in the warm water tank is the second target temperature, when the water in the warm water tank is conveyed to the first water outlet through the water outlet pipe, the first outlet water temperature of the first water outlet is the first target temperature.
According to the technical scheme, the temperature loss value from the warm water tank to the first water outlet is considered, the second target temperature of the warm water tank is determined according to the temperature loss value, the heating power of the boiler is determined according to the second target temperature, the water temperature in the warm water tank can be adjusted to the second target temperature within the preset time, the first outlet water temperature can be ensured to reach the first target temperature, the thermal efficiency of the boiler is greatly improved, the energy consumption of the boiler is reduced, and the service life of the boiler is prolonged.
In one embodiment, the number of first water outlets is plural, and determining the second target temperature of the warm water tank based on the temperature loss value and the first target temperature includes: determining a heat loss value of the water in each water outlet pipe according to the current water temperature, the first target temperature corresponding to each first water outlet, the pipeline specification parameters of the water outlet pipe between each first water outlet and the warm water tank and the ambient temperature; determining a temperature loss value of the water in each water outlet pipe according to the heat loss value of the water in each water outlet pipe; and determining a second target temperature of the warm water tank according to the temperature loss value in each water outlet pipe and the first target temperature corresponding to each first water outlet.
The warm water tank may include a plurality of first water outlets. The first outlet water temperatures of any two first water outlets can be set to different temperatures or can be set to the same temperature. Since the first water outlets are water outlets for users, and the distance from the warm water tank to the water needed by the users may be different, the pipeline length of the water outlet pipe between the warm water tank and each first water outlet may be different. Therefore, the heat loss generated when water in the warm water tank is delivered to each first water outlet will also be different. Wherein the heat loss of each first water outlet may comprise heat loss of water inside and outside each water outlet pipe. Heat loss inside the outlet pipe may refer to heat loss remaining in the outlet pipe. The heat loss outside the water outlet pipe refers to the heat loss of transportation caused by the water transportation distance. The processor can determine the heat loss value of the water in each water outlet pipe according to the current water temperature of the warm water tank, the first target temperature corresponding to each first water outlet, the pipeline specification parameters of the water outlet pipe between each first water outlet and the warm water tank and the environment temperature. The processor may then determine a temperature loss value for the water in each outlet pipe based on the heat loss value for the water in each outlet pipe. The processor can determine a second target temperature of the warm water tank according to the temperature loss value in each water outlet pipe and the first target temperature corresponding to each first water outlet.
In one embodiment, determining the heat loss value of the water in each water outlet pipe according to the current water temperature, the first target temperature corresponding to each first water outlet, the pipeline specification parameters of the water outlet pipe between each first water outlet and the warm water tank and the ambient temperature comprises: determining a residual heat loss value of the water pipe according to the current water temperature, a first target temperature corresponding to the first water outlet and pipeline specification parameters of a water outlet pipe between the first water outlet and the warm water tank for each first water outlet; determining a heat loss conveying value of the water pipe according to a first target temperature corresponding to the first water outlet, a pipeline specification parameter of a water outlet pipe between the first water outlet and the warm water tank and an ambient temperature for each first water outlet; the sum of the residual heat loss value and the transport heat loss value of each water outlet pipe is determined as the heat loss value of the water in each water outlet pipe.
For each water outlet, the processor may determine a residual heat loss value of the water outlet pipe corresponding to each first water outlet according to the current water temperature, the first target temperature corresponding to each first water outlet, and a pipeline specification parameter of the water outlet pipe between each first water outlet and the warm water tank. Specifically, in one embodiment, the residual heat loss value is determined by equation (1):
Wherein Q is r Refers to the residual heat loss value, c refers to the specific heat capacity of water, ρ refers to the density of water, pi refers to the circumference ratio, d 1 The inner diameter of the pipeline of the water outlet pipe corresponding to the first water outlet, l the length of the pipeline of the water outlet pipe corresponding to the first water outlet, t w Refers to a first target temperature, t, corresponding to a first water outlet c Refers to the current water temperature of the warm water tank.
For each water outlet, the processor can determine the delivery heat loss value of the water pipe according to the first target temperature corresponding to the first water outlet, the pipeline specification parameters of the water outlet pipe between each first water outlet and the warm water tank and the ambient temperature. In the case of determining the residual heat loss value and the transport heat loss value for each outlet pipe, the processor may determine the sum of the residual heat loss value and the transport heat loss value for each outlet pipe and may determine the sum of the loss values as the heat loss value for the water in each outlet pipe. Specifically, in one embodiment, the delivery heat loss value is determined by equation (2):
wherein Q is t Refers to heat loss, pi refers to circumference ratio, l refers to pipeline length of water outlet pipe corresponding to first water outlet, t w Refers to a first target temperature, t, corresponding to a first water outlet a Refers to the ambient temperature, h w Refers to the convection heat exchange coefficient of water in the water outlet pipe corresponding to the first water outlet, d 1 Refers to the inner diameter d of a pipeline of a water outlet pipe corresponding to the first water outlet 2 Refers to the outer diameter lambda of the pipeline of the water outlet pipe corresponding to the first water outlet 1 Refers to the heat conductivity coefficient lambda of the pipe of the water outlet pipe corresponding to the first water outlet 2 Refers to the heat conduction coefficient, d, of the heat insulation material of the water outlet pipe corresponding to the first water outlet 3 Refers to the outer diameter h of the heat insulation material of the water outlet pipe corresponding to the first water outlet a Refers to the convection heat exchange coefficient of the air outside the water outlet pipe corresponding to the first water outlet.
In one embodiment, the temperature loss value is determined by equation (3):
Q＝Q r +Q t ＝cmT (3)
wherein Q is the heat loss value, Q r Refers to the residual heat loss value, Q t Refers to the transport heat loss, c refers to the specific heat capacity of water, m refers to the mass of water, and T refers to the temperature loss value.
In one embodiment, determining the second target temperature of the warm water tank based on the temperature loss value in each outlet pipe and the first target temperature corresponding to each first outlet port comprises: determining the average value of temperature loss in all water outlet pipes; determining a plurality of candidate target temperatures for the warm water tank according to the temperature loss average value and the first target temperature corresponding to each first water outlet; and determining the average value of all candidate target temperatures as a second target temperature of the warm water tank.
After determining the temperature loss value in each outlet pipe, the processor may accumulate and average the temperature loss values in each outlet pipe to determine an average of the temperature losses in all outlet pipes. Because the warm water tank and the plurality of first water outlets, the first outlet water temperature of each first water outlet may be different. At this time, the processor may determine a plurality of candidate target temperatures for the warm water tank according to the temperature loss average value and the first target temperature corresponding to each of the first water outlets. The processor may then further determine a mean value of all candidate target temperatures and determine the mean value as the second target temperature of the warm water tank.
In one embodiment, determining the heating power of the boiler from the second target temperature comprises: determining a temperature difference between the second target temperature and the current water temperature; determining a heating heat value required by the boiler heating water according to the temperature difference value; and determining the heating power of the boiler according to the heating heat quantity value.
The processor may determine a temperature difference between the second target temperature and the current water temperature. The processor may then determine a heating heat value required for heating water by the boiler based on the temperature difference, and may further determine a heating power of the boiler based on the heating heat value. Further, the processor may control the boiler to operate according to the heating power to adjust the water temperature in the warm water tank to the second target temperature within a preset time. At this time, if the water in the warm water tank is conveyed to the first water outlet through the water outlet pipe, the first outlet water temperature of the first water outlet is the first target temperature.
In one embodiment, the warm water tank further comprises a second water outlet connected to the boiler, the control method further comprising: determining a water quantity difference between the water storage quantity and the preset water storage quantity under the condition that the current water temperature is smaller than the preset temperature and the water storage quantity of water in the warm water tank is larger than the preset water storage quantity; controlling the warm water tank to deliver water with water quantity difference to the boiler through the second water outlet; the boiler is controlled to operate according to the preset power so that the warm water tank reaches the preset temperature.
The warm water tank may further comprise a second water outlet connected to the boiler. After the current water temperature of the warm water tank is obtained, the processor may compare the current water temperature with a preset temperature. The preset temperature can be customized according to actual conditions. If the current water temperature is less than the preset temperature, the processor can further acquire the water storage amount of the water in the warm water tank. The processor can compare the water storage amount of the water in the warm water tank with the preset water storage amount. The preset water storage capacity can be customized according to actual conditions. If the water storage amount of the water in the warm water tank is larger than the preset water storage amount, that is, the current water temperature of the water in the warm water tank is low and the water storage amount is too high, the processor can determine the water amount difference between the water storage amount of the water in the warm water tank and the preset water storage amount in order to further increase the temperature of the water in the warm water tank. Then, the processor can control the warm water tank to deliver water with water quantity difference to the boiler through the second water outlet, and control the boiler to operate according to preset power so as to enable the warm water tank to reach preset temperature. The preset power can be full power, namely, the boiler can run according to the full power at the moment so as to quickly increase the water temperature in the warm water tank.
For example, the warm water tank comprises a first water outlet, the water outlet pipe between the first water outlet and the warm water tank is 5m, the first target temperature of the first water outlet is 70 ℃, and when the first outlet water temperature of the first water outlet is less than 70 ℃, the processor can determine the residual heat loss value of the water outlet pipe
If the convection heat exchange coefficient h of water in the water outlet pipe w 1000, the convection heat exchange coefficient h of the air outside the water outlet pipe a Is 20, the heat conductivity coefficient lambda of the pipe 1 Is 0.2, and the heat conduction coefficient lambda of the heat insulation material 2 0.15, the outer diameter d of the heat insulation material 3 0.038, the processor can determine the delivery heat loss value of the outlet pipe as/>
The processor may then, according to q=q r +Q t = cmT, the temperature loss value in the outlet pipe at this time was determined to be 8 ℃. That is, if the first water outlet reaches 70 ℃, the temperature of the warm water tank is increased by 8 ℃. The target temperature of the warm water tank and the first target temperature of the first water outlet may be the same regardless of the heat loss value of the warm water tank to the first water outlet. In practical situations, the warm water tank is connected with the first water outlet through the water outlet pipe, and heat loss is generated when water in the warm water tank is conveyed to the first water outlet through the water outlet pipe, so that the target temperature of the warm water tank at the moment is set to be 78 ℃. The processor may then determine the amount of heating heat required to raise the current water temperature of the hot water tank to 78 c at 25 c, at which point the amount of heating heat is 61.8KW/h. The processor may determine the heating power of the boiler based on the heating capacity value. If the boiler is controlled to operate at this heating power, the temperature of the warm water tank can be raised to 78 ℃, and the first outlet water temperature at the time of delivering water in the warm water tank to the first outlet water can be ensured at 70 ℃.
According to the technical scheme, the temperature loss value from the warm water tank to the first water outlet is considered, the second target temperature of the warm water tank is determined according to the temperature loss value, the heating power of the boiler is determined according to the second target temperature, the water temperature in the warm water tank can be adjusted to the second target temperature within the preset time, the first outlet water temperature can be ensured to reach the first target temperature, the thermal efficiency of the boiler is greatly improved, the energy consumption of the boiler is reduced, and the service life of the boiler is prolonged.
In one embodiment, a storage medium is provided having a program stored thereon, which when executed by a processor, implements the control method for a boiler described above.
In one embodiment, a processor is provided for running a program, wherein the program, when running, performs the control method for a boiler described above.
In one embodiment, a control device for a boiler is provided, comprising a processor as described above.
In one embodiment, as shown in FIG. 2, there is provided a control system 200 for a boiler, the control system 200 comprising:
a warm water tank 201 for storing water, the warm water tank including a first water outlet;
a boiler 202 for adjusting the water temperature in the warm water tank according to the heating power, wherein a water outlet of the boiler is connected with the warm water tank; and
A control device 203 for a boiler.
The boiler may be referred to as a boiler for industrial production, among others. For example, the boiler may be a steam boiler, a hot water boiler, and an organic heat carrier furnace. The boiler comprises a water outlet. The water outlet of the boiler is connected with a warm water tank. The warm water tank may be used for storing water, the warm water tank comprising a first water outlet. The first water outlet may be a water outlet of the pointer to the user.
In one embodiment, the number of first water outlets is plural.
The warm water tank may include a plurality of first water outlets. The first outlet water temperatures of any two first water outlets can be set to different temperatures or can be set to the same temperature. Since the first water outlets are water outlets for users, and the distance from the warm water tank to the water needed by the users may be different, the pipeline length of the water outlet pipe between the warm water tank and each first water outlet may be different.
In one embodiment, the warm water tank further comprises: the second water outlet is used for conveying water in the warm water tank to the boiler and is connected with the boiler.
In one embodiment, as shown in FIG. 3, a further control system for a boiler is provided. The control system comprises a boiler 1, a boiler water outlet 2, a warm water tank 3, a warm water outlet 4, a hot water pump 5, outlet water 6, a boiler water inlet 7, a circulating pump 8, a temperature control system center 9, a cold water inlet 10, a cold water pump 11 and a cold water tank 12. Wherein the boiler 1 can adjust the water temperature in the warm water tank according to the heating power. The warm water tank 3 may be used for storing water. The hot water pump 5 may power the boiler operation. The circulation pump 8 may power the feeding of water from the warm water tank to the boiler. The temperature control system center 9 can obtain the temperature of water in the warm water tank and the temperature of water at the outlet, and can control the boiler 1 and the circulating pump 8. The cold water pump 11 may power the transfer of water from the cold water tank 12 to the warm water tank. The cold water tank 12 may also be used to store water.
FIG. 1 is a flow chart of a control method for a boiler in one embodiment. It should be understood that, although the steps in the flowchart of fig. 1 are shown in sequence as indicated by the arrows, the steps are not necessarily performed in sequence as indicated by the arrows. The steps are not strictly limited to the order of execution unless explicitly recited herein, and the steps may be executed in other orders. Moreover, at least some of the steps in fig. 1 may include multiple sub-steps or stages that are not necessarily performed at the same time, but may be performed at different times, nor do the order in which the sub-steps or stages are performed necessarily performed in sequence, but may be performed alternately or alternately with at least a portion of other steps or sub-steps of other steps.
In one embodiment, a computer device is provided, which may be a server, the internal structure of which may be as shown in fig. 4. The computer device includes a processor a01, a network interface a02, a memory (not shown) and a database (not shown) connected by a system bus. Wherein the processor a01 of the computer device is adapted to provide computing and control capabilities. The memory of the computer device includes internal memory a03 and nonvolatile storage medium a04. The nonvolatile storage medium a04 stores an operating system B01, a computer program B02, and a database (not shown in the figure). The internal memory a03 provides an environment for the operation of the operating system B01 and the computer program B02 in the nonvolatile storage medium a04. The database of the computer equipment is used for storing data such as heating power of the boiler. The network interface a02 of the computer device is used for communication with an external terminal through a network connection. The computer program B02, when executed by the processor a01, implements a control method for a boiler.
Those skilled in the art will appreciate that the structures shown in FIG. 4 are block diagrams only and do not constitute a limitation of the computer device on which the present aspects apply, and that a particular computer device may include more or less components than those shown, or may combine some of the components, or have a different arrangement of components.
The embodiment of the application provides equipment, which comprises a processor, a memory and a program stored on the memory and capable of running on the processor, wherein the processor executes the program to realize the following steps: acquiring a first outlet water temperature of a first water outlet; under the condition that the water temperature of the first outlet is smaller than a first target temperature, acquiring the current water temperature of the warm water tank, the pipeline specification parameters and the environment temperature of a water outlet pipe, wherein the water outlet pipe refers to a connecting pipeline between the warm water tank and the first water outlet; determining a heat loss value of the water in the water outlet pipe according to the current water temperature, the first target temperature, the pipeline specification parameters and the ambient temperature; determining a temperature loss value of water in the water outlet pipe according to the heat loss value; determining a second target temperature of the warm water tank according to the temperature loss value and the first target temperature; and determining the heating power of the boiler according to the second target temperature so as to adjust the water temperature in the warm water tank to the second target temperature within a preset time.
In one embodiment, the number of first water outlets is plural, and determining the second target temperature of the warm water tank based on the temperature loss value and the first target temperature includes: determining a heat loss value of the water in each water outlet pipe according to the current water temperature, the first target temperature corresponding to each first water outlet, the pipeline specification parameters of the water outlet pipe between each first water outlet and the warm water tank and the ambient temperature; determining a temperature loss value of the water in each water outlet pipe according to the heat loss value of the water in each water outlet pipe; and determining a second target temperature of the warm water tank according to the temperature loss value in each water outlet pipe and the first target temperature corresponding to each first water outlet.
In one embodiment, determining the second target temperature of the warm water tank based on the temperature loss value in each outlet pipe and the first target temperature corresponding to each first outlet port comprises: determining the average value of temperature loss in all water outlet pipes; determining a plurality of candidate target temperatures for the warm water tank according to the temperature loss average value and the first target temperature corresponding to each first water outlet; and determining the average value of all candidate target temperatures as a second target temperature of the warm water tank.
In one embodiment, determining the heat loss value of the water in each water outlet pipe according to the current water temperature, the first target temperature corresponding to each first water outlet, the pipeline specification parameters of the water outlet pipe between each first water outlet and the warm water tank and the ambient temperature comprises:
determining a residual heat loss value of the water pipe according to the current water temperature, a first target temperature corresponding to the first water outlet and pipeline specification parameters of a water outlet pipe between the first water outlet and the warm water tank for each first water outlet; determining a heat loss conveying value of the water pipe according to a first target temperature corresponding to the first water outlet, a pipeline specification parameter of a water outlet pipe between the first water outlet and the warm water tank and an ambient temperature for each first water outlet; the sum of the residual heat loss value and the transport heat loss value of each water outlet pipe is determined as the heat loss value of the water in each water outlet pipe.
In one embodiment, the residual heat loss value is determined by equation (1):
wherein Q is r Refers to the residual heat loss value, c refers to the specific heat capacity of water, ρ refers to the density of water, pi refers to the circumference ratio, d 1 The inner diameter of the pipeline of the water outlet pipe corresponding to the first water outlet, l the length of the pipeline of the water outlet pipe corresponding to the first water outlet, t w Refers to a first target temperature, t, corresponding to a first water outlet c Refers to the current water temperature of the warm water tank.
In one embodiment, the delivery heat loss value is determined by equation (2):
wherein Q is t Refers to heat loss, pi refers to circumference ratio, l refers to pipeline length of water outlet pipe corresponding to first water outlet, t w Refers to a first target temperature, t, corresponding to a first water outlet a Refers to the ambient temperature, h w Refers to the convection heat exchange coefficient of water in the water outlet pipe corresponding to the first water outlet, d 1 Refers to the inner diameter d of a pipeline of a water outlet pipe corresponding to the first water outlet 2 Refers to the outer diameter lambda of the pipeline of the water outlet pipe corresponding to the first water outlet 1 Refers to the heat conductivity coefficient lambda of the pipe of the water outlet pipe corresponding to the first water outlet 2 Refers to the heat conduction coefficient, d, of the heat insulation material of the water outlet pipe corresponding to the first water outlet 3 Refers to the outer diameter h of the heat insulation material of the water outlet pipe corresponding to the first water outlet a Refers to the convection heat exchange coefficient of the air outside the water outlet pipe corresponding to the first water outlet.
In one embodiment, the temperature loss value is determined by equation (3):
Q＝Q r +Q t ＝cmT (3)
wherein Q is the heat loss value, Q r Refers to the residual heat loss value, Q t Refers to the transport heat loss, c refers to the specific heat capacity of water, m refers to the mass of water, and T refers to the temperature loss value.
In one embodiment, determining the heating power of the boiler from the second target temperature comprises: determining a temperature difference between the second target temperature and the current water temperature; determining a heating heat value required by the boiler heating water according to the temperature difference value; and determining the heating power of the boiler according to the heating heat quantity value.
In one embodiment, the warm water tank further comprises a second water outlet connected to the boiler, the control method further comprising: determining a water quantity difference between the water storage quantity and the preset water storage quantity under the condition that the current water temperature is smaller than the preset temperature and the water storage quantity of water in the warm water tank is larger than the preset water storage quantity; controlling the warm water tank to deliver water with water quantity difference to the boiler through the second water outlet; the boiler is controlled to operate according to the preset power so that the warm water tank reaches the preset temperature.
The present application also provides a computer program product adapted to perform a program initializing the steps of a control method for a boiler when executed on a data processing device.
It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
In one typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.
The memory may include volatile memory in a computer-readable medium, random Access Memory (RAM) and/or nonvolatile memory, etc., such as Read Only Memory (ROM) or flash RAM. Memory is an example of a computer-readable medium.
Computer readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of storage media for a computer include, but are not limited to, phase change memory (PRAM), static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), read Only Memory (ROM), electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium, which can be used to store information that can be accessed by a computing device. Computer-readable media, as defined herein, does not include transitory computer-readable media (transmission media), such as modulated data signals and carrier waves.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises an element.
The foregoing is merely exemplary of the present application and is not intended to limit the present application. Various modifications and changes may be made to the present application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc. which are within the spirit and principles of the present application are intended to be included within the scope of the claims of the present application.
Claims (15)
1. A control method for a boiler, wherein a water outlet of the boiler is connected to a warm water tank, the warm water tank including a first water outlet, the control method comprising:
acquiring a first outlet water temperature of the first water outlet;
Acquiring the current water temperature of the warm water tank, the pipeline specification parameters of a water outlet pipe and the environment temperature under the condition that the first outlet water temperature is smaller than a first target temperature, wherein the water outlet pipe refers to a connecting pipeline between the warm water tank and the first water outlet;
determining a heat loss value of the water in the water outlet pipe according to the current water temperature, the first target temperature, the pipeline specification parameter and the environment temperature;
determining a temperature loss value of the water in the water outlet pipe according to the heat loss value;
determining a second target temperature of the warm water tank according to the temperature loss value and the first target temperature;
and determining the heating power of the boiler according to the second target temperature so as to adjust the water temperature in the warm water tank to the second target temperature within a preset time.
2. The control method for a boiler according to claim 1, wherein the number of the first water outlets is plural, and the determining the second target temperature of the warm water tank according to the temperature loss value and the first target temperature includes:
determining a heat loss value of the water in each water outlet pipe according to the current water temperature, the first target temperature corresponding to each first water outlet, the pipeline specification parameters of the water outlet pipe between each first water outlet and the warm water tank and the environmental temperature;
Determining a temperature loss value of the water in each water outlet pipe according to the heat loss value of the water in each water outlet pipe;
and determining a second target temperature of the warm water tank according to the temperature loss value in each water outlet pipe and the first target temperature corresponding to each first water outlet.
3. The control method for a boiler according to claim 2, wherein the determining the second target temperature of the warm water tank according to the temperature loss value in each water outlet pipe and the first target temperature corresponding to each first water outlet includes:
determining the average value of temperature loss in all water outlet pipes;
determining a plurality of candidate target temperatures for the warm water tank according to the temperature loss average value and the first target temperature corresponding to each first water outlet;
and determining the average value of all candidate target temperatures as a second target temperature of the warm water tank.
4. The control method for a boiler according to claim 2, wherein the determining the heat loss value of the water in each outlet pipe according to the current water temperature, the first target temperature corresponding to each first water outlet, the pipe specification parameter of the outlet pipe between each first water outlet and the warm water tank, and the ambient temperature comprises:
For each first water outlet, determining a residual heat loss value of the water outlet pipe according to the current water temperature, a first target temperature corresponding to the first water outlet and pipeline specification parameters of the water outlet pipe between the first water outlet and the warm water tank;
determining a conveying heat loss value of a water outlet pipe according to a first target temperature corresponding to the first water outlet, a pipeline specification parameter of the water outlet pipe between the first water outlet and the warm water tank and the environment temperature for each first water outlet;
the sum of the residual heat loss value and the transport heat loss value of each water outlet pipe is determined as the heat loss value of the water in each water outlet pipe.
5. The control method for a boiler according to claim 4, wherein the residual heat loss value is determined by the formula (1):
wherein Q is r Refers to the residual heat loss value, c refers to the specific heat capacity of water, ρ refers to the density of water, pi refers to the circumference ratio, d 1 The inner diameter of the pipeline of the water outlet pipe corresponding to the first water outlet is defined as l, the length of the pipeline of the water outlet pipe corresponding to the first water outlet is defined as t w Refers to a first target temperature, t, corresponding to the first water outlet c Refers to the current water temperature of the warm water tank.
6. The control method for a boiler according to claim 4, wherein the delivery heat loss value is determined by the formula (2):
wherein Q is t Is the heat loss of the delivery, pi is the circumference ratio, l is the pipeline length of the water outlet pipe corresponding to the first water outlet, t w Refers to a first target temperature, t, corresponding to the first water outlet a Refers to the ambient temperature, h w Refers to the convection heat exchange coefficient of water in the water outlet pipe corresponding to the first water outlet, d 1 Refers to and is connected withPipeline inner diameter d of water outlet pipe corresponding to first water outlet 2 Refers to the outer diameter lambda of the pipeline of the water outlet pipe corresponding to the first water outlet 1 Refers to the heat conductivity coefficient lambda of the pipe of the water outlet pipe corresponding to the first water outlet 2 Refers to the heat conduction coefficient, d, of the heat insulation material of the water outlet pipe corresponding to the first water outlet 3 Refers to the outer diameter h of the heat insulation material of the water outlet pipe corresponding to the first water outlet a Refers to the convective heat transfer coefficient of the air outside the water outlet pipe corresponding to the first water outlet.
7. The control method for a boiler according to claim 1, wherein the temperature loss value is determined by the formula (3):
Q＝Q r +Q t ＝cmT (3)
Wherein Q is the heat loss value, Q r Refers to the residual heat loss value, Q t Refers to the transport heat loss, c refers to the specific heat capacity of water, m refers to the mass of water, and T refers to the temperature loss value.
8. The control method for a boiler according to claim 1, wherein the determining the heating power of the boiler according to the second target temperature comprises:
determining a temperature difference between the second target temperature and the current water temperature;
determining a heating heat value required by the boiler heating water according to the temperature difference value;
and determining the heating power of the boiler according to the heating heat quantity value.
9. The control method for a boiler according to claim 1, wherein the warm water tank further comprises a second water outlet connected to the boiler, the control method further comprising:
determining a water quantity difference between the water storage quantity and the preset water storage quantity under the condition that the current water temperature is smaller than the preset temperature and the water storage quantity of water in the warm water tank is larger than the preset water storage quantity;
controlling the warm water tank to deliver water with the water quantity difference to the boiler through the second water outlet;
And controlling the boiler to operate according to preset power so as to enable the warm water tank to reach the preset temperature.
10. A machine-readable storage medium having instructions stored thereon, which when executed by a processor cause the processor to be configured to perform the control method for a boiler according to any of claims 1 to 9.
11. A processor, characterized by being configured to perform the control method for a boiler according to any one of claims 1 to 9.
12. A control device for a boiler, characterized in that the control device comprises a processor according to claim 11.
13. A control system for a boiler, the control system comprising:
the warm water tank is used for storing water and comprises a first water outlet;
the boiler is used for adjusting the water temperature in the warm water tank according to the heating power, and a water outlet of the boiler is connected with the warm water tank; and
the control device for a boiler according to claim 12.
14. The control system for a boiler according to claim 13, wherein the number of the first water outlets is plural.
15. The control system for a boiler according to claim 13, wherein the warm water tank further comprises:
and the second water outlet is used for conveying water in the warm water tank to the boiler and is connected with the boiler.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117170446A (en) * | 2023-11-01 | 2023-12-05 | 江苏皓越真空设备有限公司 | Intelligent circulating water adjusting method and system for vacuum hot-pressing furnace |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117170446A (en) * | 2023-11-01 | 2023-12-05 | 江苏皓越真空设备有限公司 | Intelligent circulating water adjusting method and system for vacuum hot-pressing furnace |
| CN117170446B (en) * | 2023-11-01 | 2024-01-26 | 江苏皓越真空设备有限公司 | Intelligent circulating water adjusting method and system for vacuum hot-pressing furnace |
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