CN219868095U - Function complementary type heat supply and power supply control system - Google Patents
Function complementary type heat supply and power supply control system Download PDFInfo
- Publication number
- CN219868095U CN219868095U CN202320637191.7U CN202320637191U CN219868095U CN 219868095 U CN219868095 U CN 219868095U CN 202320637191 U CN202320637191 U CN 202320637191U CN 219868095 U CN219868095 U CN 219868095U
- Authority
- CN
- China
- Prior art keywords
- circuit
- signal conditioning
- snow melting
- water tank
- conditioning circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000000295 complement effect Effects 0.000 title claims abstract description 15
- 238000002844 melting Methods 0.000 claims abstract description 71
- 230000008018 melting Effects 0.000 claims abstract description 64
- 230000003750 conditioning effect Effects 0.000 claims abstract description 39
- 239000007788 liquid Substances 0.000 claims abstract description 28
- 238000004891 communication Methods 0.000 claims abstract description 24
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 65
- 239000008236 heating water Substances 0.000 claims description 29
- 238000010438 heat treatment Methods 0.000 description 44
- 229910000831 Steel Inorganic materials 0.000 description 15
- 239000010959 steel Substances 0.000 description 15
- 239000012530 fluid Substances 0.000 description 13
- 230000002528 anti-freeze Effects 0.000 description 12
- 229920002635 polyurethane Polymers 0.000 description 10
- 239000004814 polyurethane Substances 0.000 description 10
- 238000010586 diagram Methods 0.000 description 6
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
- 238000005485 electric heating Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 239000005413 snowmelt Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 239000010902 straw Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Landscapes
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
A functional complementary heat and power supply control system belongs to the technical field of snow melting control, and particularly relates to a functional complementary heat and power supply control system. The utility model provides a functional complementary heat and power supply control system. The utility model relates to a function complementary type heat supply and power supply control system which comprises a microcontroller circuit, a wireless communication circuit, a keyboard and liquid crystal display circuit, a 485 communication circuit, a temperature signal conditioning circuit, an irradiation signal conditioning circuit, a liquid level signal conditioning circuit and a switching value control circuit.
Description
Technical Field
The utility model belongs to the technical field of snow melting control, and particularly relates to a functional complementary heat and power supply control system.
Background
In northern cold areas, some residents, especially rural residents, cannot access a heating official network, heating in winter becomes difficult, and heating has to be performed in modes of straw combustion, coal combustion, electric heating and the like. In the modes, the combustion of straw and coal seriously pollutes the atmosphere, and the electric heating and warming cost is high. There is a need for a clean energy heating system that uses less energy to solve the current problems. For cold areas, the problem of snow melt control is a problem to be solved urgently.
Disclosure of Invention
The utility model aims at the problems and provides a hardware foundation of a functional complementary heat and power supply control system.
The utility model adopts the following technical scheme that the function complementary type heat supply and power supply control system comprises a microcontroller circuit, a wireless communication circuit, a keyboard, a liquid crystal display circuit, a 485 communication circuit, a temperature signal conditioning circuit, an irradiation signal conditioning circuit, a liquid level signal conditioning circuit and a switching value control circuit, and is characterized in that the microcontroller circuit is respectively connected with the wireless communication circuit, the keyboard, the liquid crystal display circuit, the 485 communication circuit, the temperature signal conditioning circuit, the irradiation signal conditioning circuit, the liquid level signal conditioning circuit and the switching value control circuit, the switching value control circuit is respectively connected with a first circulating water pump, a second circulating water pump, a first electromagnetic valve to a eighth electromagnetic valve and an electric heater of a heating water tank, the liquid level signal conditioning circuit is connected with a liquid level sensor in the heating water tank and a liquid level sensor in a snow melting water tank, the irradiation signal conditioning circuit is connected with an irradiation sensor beside a photovoltaic module, the temperature signal conditioning circuit is connected with an indoor temperature sensor, and the 485 communication circuit is respectively connected with a grid-connected inverter and an air source heat pump;
real-time control of the system is realized through a remote terminal device (including a mobile phone, a tablet personal computer and the like) by a wireless communication circuit, and real-time working states and historical faults of the system, and real-time data and historical data of each physical quantity are checked on line;
setting some physical parameters of the system through a keyboard and a liquid crystal display circuit, and displaying the working mode of the system in real time;
monitoring working states and physical parameters of the grid-connected inverter and the air source heat pump in real time through a 485 communication circuit;
the voltage range of the analog signal sent by the temperature sensor is adjusted to the voltage range which can be received by the microcontroller through the temperature signal conditioning circuit, and the analog signal is changed into a digital signal for calculation through an AD module in the microcontroller;
the voltage range of the analog signal sent by the irradiation sensor is adjusted to the voltage range which can be received by the microcontroller through the irradiation signal conditioning circuit, and the analog signal is changed into a digital signal for calculation through an AD module in the microcontroller;
the voltage range of the analog signal sent by the liquid level sensor is adjusted to the voltage range which can be received by the microcontroller through the liquid level signal conditioning circuit, and the analog signal is changed into a digital signal for calculation through an AD module in the microcontroller;
the switching value control circuit controls the switching of the relay by an optical coupling isolation mode according to a switching value control weak current signal sent by the microcontroller, so as to control strong current equipment in the system;
the microcontroller circuit is a core circuit of the controller and is responsible for the work of data acquisition, calculation, real-time control and the like of the system, and the microcontroller circuit consists of a CPU and a peripheral circuit, wherein the CPU can be selected from chips such as a high-speed single chip microcomputer, a DSP, an ARM and the like, and the working frequency of the CPU is more than 70 MHz.
As a preferable scheme, the indoor temperature sensor is arranged in a heated house, is arranged at the position which is 1.2m away from the ground, is arranged at the position which is in the north-south direction and is away from the midpoint of the south wall and the north wall, and the component backboard temperature sensor is arranged at the central position of the back surface of the photovoltaic component and is far away from a snow melting pipeline of the component backboard. The irradiation sensor is arranged near the outdoor photovoltaic module, and the irradiation sensor cannot be shielded by shadows. The liquid level sensor is respectively arranged in the heating water tank and the snow melting water tank. The object controlled by the switching value control circuit comprises a first circulating water pump, a second circulating water pump, a first electromagnetic valve to a eighth electromagnetic valve and an electric heater in a heating water tank.
As another preferable scheme, when the system starts to work, firstly, various physical parameters are set by using a keyboard, whether two water tanks in the system need to be supplemented with antifreeze or not is judged, then, the system is controlled to enter a corresponding working mode according to instructions sent by owners, and if no new instructions exist, the system is enabled to keep a conventional heating mode or an energy-saving heating mode which is set last time. When the system enters a conventional heating mode, firstly judging whether the indoor temperature exceeds a set temperature, if not, starting an air source heat pump, and controlling a related electromagnetic valve and a water pump according to a mode 1; if the air source heat pump is exceeded, the air source heat pump is closed, and the related electromagnetic valve and the water pump keep the original working state. When the system enters an energy-saving heating mode, the control flow is the same as that of a conventional heating mode, but the related electromagnetic valve and the water pump work according to a mode 2. When the system enters a snow melting mode, firstly starting an air source heat pump, controlling a related electromagnetic valve and a water pump according to a mode 3, calculating calculated output power of the photovoltaic power station according to parameters such as irradiation intensity and the like, and entering circulation waiting if the calculated output power is larger than the actual output power; if the calculated output power is less than the actual output power, the snow melting mode is stopped and the owner is notified via wireless communication. When the system enters a snow melting and conventional heating mode, firstly starting an air source heat pump, controlling a related electromagnetic valve and a water pump according to a mode 4, judging whether the indoor temperature exceeds a set temperature, if not, starting an electric heater, if yes, turning off the electric heater, keeping the related electromagnetic valve and the water pump in an original working state, then calculating calculated output power of a photovoltaic power station according to parameters such as irradiation intensity, and if the calculated output power is larger than the actual output power, entering circulation waiting; and if the calculated output power is smaller than the actual output power, ending the snow melting and normal heating mode, informing the owner through wireless communication, and if the owner has no instruction, continuing to work according to the normal heating mode. When the system enters a snow melting and energy-saving heating mode, the control flow is the same as that of the snow melting and conventional heating mode, but the related electromagnetic valve and the water pump work according to the mode 5.
The utility model has the beneficial effects that.
The utility model realizes real-time control of the system through the remote terminal equipment (including mobile phones, tablet computers and the like) by the wireless communication circuit, and checks the real-time working state and history faults of the system and the real-time data and history data of each physical quantity on line. The system is provided with a keyboard and a liquid crystal display circuit, and the system is provided with a plurality of physical parameters and the working mode of the system is displayed in real time. And the working states and various physical parameters of the grid-connected inverter and the air source heat pump are monitored in real time through a 485 communication circuit. The voltage range of the analog signal sent by the temperature sensor is adjusted to the voltage range which can be received by the microcontroller through the temperature signal conditioning circuit, and the analog signal is changed into a digital signal for calculation through an AD module in the microcontroller. The voltage range of the analog signal sent by the irradiation sensor is adjusted to the voltage range which can be received by the microcontroller through the irradiation signal conditioning circuit, and the analog signal is changed into a digital signal for calculation through an AD module in the microcontroller. The voltage range of the analog signal sent by the liquid level sensor is adjusted to the voltage range which can be received by the microcontroller through the liquid level signal conditioning circuit, and the analog signal is changed into a digital signal for calculation through an AD module in the microcontroller. The switching value control circuit controls the switching of the relay by the switching value control weak current signal sent by the microcontroller in an optocoupler isolation mode, so that the strong current equipment in the system is controlled. The microcontroller circuit is a core circuit of the controller and is responsible for the work of data acquisition, calculation, real-time control and the like of the system, and the microcontroller circuit consists of a CPU and a peripheral circuit, wherein the CPU can be selected from chips such as a high-speed single chip microcomputer, a DSP, an ARM and the like, and the working frequency of the CPU is more than 70 MHz.
Drawings
FIG. 1 is a schematic diagram of a functionally complementary heating and power supply control system.
Fig. 2 is a schematic diagram of a multi-energy coupling type energy system for heating and photovoltaic power generation of an ultralow temperature air source heat pump.
The back surface of the photovoltaic module is provided with a U-shaped snow melting pipeline in the shape of a Chinese character 'mu' in figure 3.
FIG. 4 is a cross-sectional view of a semicircular steel pipe and a semicircular polyurethane heat-insulating pipe shell.
Figure 5 illustrates an example road of a snow-melting tube in the shape of a Chinese character 'mu' on the back of the photovoltaic module.
Fig. 6 is a diagram of an example of cross section of a semicircular steel pipe and a semicircular polyurethane heat-insulating pipe shell.
FIG. 7 is a schematic diagram of a back side snow melting pipeline connection of a photovoltaic module.
The serial numbers in the figures illustrate: 1-steel pipe and 2-polyurethane heat-insulating pipe shell.
Detailed Description
The functional complementary heat supply and power supply control system can be applied to a multifunctional coupling type energy system. As shown in fig. 2, the multi-energy coupling type energy system comprises a photovoltaic array, a grid-connected inverter, an ultralow temperature air source heat pump, auxiliary electric equipment, electromagnetic valves from one to eight, a first circulating water pump, a second circulating water pump, a heating water tank and a snow melting water tank, wherein the photovoltaic array is respectively connected with a power grid, a power supply port of the ultralow temperature air source heat pump and a power supply port of the auxiliary electric equipment through the grid-connected inverter, an outlet of the ultralow temperature air source heat pump is respectively connected with one end of the electromagnetic valve from five and one end of the electromagnetic valve from seven, the other end of the electromagnetic valve from five is connected with an inlet of a snow melting water separator, and an outlet of the snow melting water separator is connected with a back plate pipeline of the photovoltaic module;
the other end of the seventh electromagnetic valve is respectively connected with one end of the inlet of the heating water separator and one end of the eighth electromagnetic valve, and the outlet of the heating water separator is connected with a heating tail end pipeline through the heating electromagnetic valve;
an inlet of the ultralow-temperature air source heat pump is respectively connected with one end of a sixth electromagnetic valve and an outlet of a second circulating water pump, the other end of the sixth electromagnetic valve is respectively connected with the outlet of the first circulating water pump and the other end of the eighth electromagnetic valve, the inlet of the first circulating water pump is connected with the outlet of a heating water tank, the inlet of the heating water tank is connected with the outlet of a heating water collector, and the inlet of the heating water collector is connected with a heating tail end return pipeline;
the inlet of the second circulating water pump is connected with the outlet of the snow melting water tank, the inlet of the snow melting water tank is connected with the outlet of the snow melting water collector, and the inlet of the snow melting water collector is connected with the back plate return pipeline of the photovoltaic module.
The system uses the ultralow temperature air source heat pump to heat the northern cold region, and the electric energy generated by the photovoltaic power generation system in the daytime solves all or part of energy consumption of the ultralow temperature air source heat pump, so that the electricity cost of the air source heat pump is greatly reduced.
Because snow accumulation in winter leads to the generated energy of photovoltaic array to reduce by a wide margin, through the circulation pipeline that sets up at photovoltaic module backplate, when photovoltaic array surface has snow, utilize the heat energy that ultralow temperature air source heat pump produced to melt snow for photovoltaic array through circulation pipeline heat dissipation to improve photovoltaic system's generated energy, realize not only can heat for the house but also can melt snow for photovoltaic array two kinds of functions with a heat pump.
The outlet of the heating water separator is four paths, and the heating electromagnetic valve comprises a first electromagnetic valve, a second electromagnetic valve, a third electromagnetic valve and a fourth electromagnetic valve.
The first circulating water pump and the second circulating water pump adopt low-noise pipeline shielding pumps. The rated flow of the shielding pump is larger than 1.2l/s, and the insulation grade of the motor inside the shielding pump needs to reach the H grade.
The electromagnetic valves 1-8 are two-position two-way electromagnetic valves, wherein the electromagnetic valves one to four, six and seven are normally open, and the electromagnetic valves five and eight are normally closed. The diameter of the solenoid valves from one to four can be 20mm, and the diameter of the solenoid valves from five to eight can be 25mm.
The antifreeze used in the system can be replaced every 5 years, and the freezing point of the antifreeze is 5 ℃ lower than the lowest temperature of the system in winter.
And a pipeline between the heating water separator and the heating tail end and a pipeline between the heating tail end and the heating water collector are all made of polyvinyl chloride pipes. The inner diameter of the pipeline can be 20mm.
And a pipeline between the snow melting water separator and the photovoltaic module backboard and a pipeline between the photovoltaic module backboard and the snow melting water collector are all round steel pipes. The inner diameter of the steel pipe can be 15mm. The rest pipelines in the system can be made of polyvinyl chloride pipes, and the inner diameter of the pipeline can be 25mm.
The heating water tank is arranged indoors, so that the heating water tank is isolated from cold atmosphere, and the heat loss is reduced to reduce the energy consumption. The electric heater is arranged at the bottom of the heating water tank, and is in a state of being completely immersed in the antifreeze under all working modes, and the electric heater is used for heating to maintain the temperature of fluid in the heating circulation system when the system needs to realize two functions of snow melting and heating at the same time.
The heating water tank parameters are as follows:
0.7Vg≦V1≦0.9Vg
V1= Vpg+Vrg
Vyg≧0.03
S/40≦Pg≦(S/40+1)
where Vg is the heating tank volume (unit m 3), and V1 is the volume (unit m 3) of the antifreeze stored in the heating tank when the heating system is not operating. Vpg is the sum of the internal volumes of the heating circulation pipes (unit m 3), vyg is the antifreeze allowance of the heating circulation system (unit m 3), pg is the power of the electric heater in the heating water tank (unit kW), and S is the building area of the heating house (unit m 2).
The snow-melting water tank is installed underground, so that the snow-melting water tank is isolated from cold atmosphere. The upper surface of the snow melting water tank is lower than the depth of the frozen soil layer of the system, so that the antifreeze in the snow melting water tank can keep higher temperature.
The parameters of the snow melting water tank are as follows:
0.7Vr≦V2≦0.9Vr
V2= Vbr+ Vpr+Vyr
Vyr≧0.03
Hr>Hd
vr is the volume (unit m 3) of the snow melting water tank, and V2 is the volume (unit m 3) of the antifreeze stored in the snow melting water tank when the snow melting system does not work. Vbr is the sum of the internal volumes (unit m 3) of all the photovoltaic module backboard snow melting pipelines, vpr is the sum of the internal volumes (unit m 3) of all the pipelines except the photovoltaic module backboard snow melting pipeline in the snow melting circulation pipeline, and Vyr is the margin (unit m 3) of the antifreeze solution of the snow melting circulation system. Hr is the vertical distance (unit m) from the upper surface of the snow melting water tank to the ground surface, and Hd is the depth (unit m) of the frozen soil layer of the system.
And covering a polyurethane heat-insulating pipe shell on the surface of a pipeline of the back plate of the photovoltaic module, and placing the snow melting water tank under the ground to reduce the heat loss of the snow melting system. As the use environment is a northern cold region, all circulating mediums in the pipelines and the water tank adopt antifreeze, and the antifreeze temperature of the antifreeze is more than 5 ℃ lower than the annual minimum temperature of the system place.
The system operation modes include the following 5 kinds.
Mode 1: conventional heating mode. The first circulating water pump is started under the mode, the second circulating water pump is closed, the solenoid valves from the first solenoid valve to the fourth solenoid valve, the sixth solenoid valve and the seventh solenoid valve are not electrified (corresponding to the pipeline conduction), and the solenoid valves from the fifth solenoid valve and the eighth solenoid valve are not electrified (corresponding to the pipeline closing). The snow melting circulation system does not work in the working mode, and no liquid is circulated in the corresponding pipeline. The heated fluid heated by the air source heat pump is supplied to all heating end pipelines.
Mode 2: energy saving heating mode. In the mode, the first circulating water pump is started, the second circulating water pump is closed, the solenoid valves of the No. six and the No. seven are not electrified (corresponding to the pipeline conduction), and the solenoid valves of the No. five and the No. eight are not electrified (corresponding to the pipeline closing). One part of the solenoid valves from the first solenoid valve to the fourth solenoid valve is not electrified (corresponding to the pipeline conduction), and the other part is electrified (corresponding to the pipeline closing). In the working mode, the snow melting circulation system does not work, and no liquid is circulated in the corresponding pipeline. The hot fluid heated by the air source heat pump is selectively supplied to a heating tail end pipeline which is not electrified in the first electromagnetic valve to the fourth electromagnetic valve, so that the heating load is reduced, and the energy consumption is reduced.
Mode 3: snow melting mode. The second circulating water pump is started under the mode, the first circulating water pump is closed, the first electromagnetic valve to the fourth electromagnetic valve are not electrified (corresponding to the pipeline is conducted), the sixth electromagnetic valve and the seventh electromagnetic valve are electrified (corresponding to the pipeline is closed), the fifth electromagnetic valve is electrified (corresponding to the pipeline is conducted), and the eighth electromagnetic valve is not electrified (corresponding to the pipeline is closed). The heating circulation system does not work in the working mode, and no liquid circulates in the corresponding pipeline. The snow melting circulation system works, and the hot fluid heated by the air source heat pump is supplied to the back plate pipeline of the photovoltaic module.
Mode 4: snow melt + conventional heating mode. In the mode, the first circulating water pump and the second circulating water pump are started, the solenoid valves of the fifth and the eighth are electrified (corresponding to the pipeline conduction), the solenoid valves of the sixth and the seventh are electrified (corresponding to the pipeline closing), the solenoid valves of the first to the fourth are not electrified (corresponding to the pipeline conduction), and the electric heater in the heating water tank starts to work. In the working mode, the snow melting circulation system works, and the heated hot fluid heated by the air source heat pump is supplied to the back plate pipeline of the photovoltaic module. The heating circulation system also works, and the heated fluid heated by the electric heater is supplied to all heating end pipelines.
Mode 5: snow melting + energy saving heating mode. In the mode, the first circulating water pump and the second circulating water pump are started, the solenoid valves of the fifth and eighth solenoid valves are electrified (corresponding to the pipeline conduction), and the solenoid valves of the sixth and seventh solenoid valves are electrified (corresponding to the pipeline closing). One part of the first to fourth electromagnetic valves is not electrified (corresponding to the pipeline being conducted), and the other part is electrified (corresponding to the pipeline being closed), so that the electric heater in the heating water tank starts to work. In the working mode, the snow melting circulation system works, and the heated hot fluid heated by the air source heat pump is supplied to the back plate pipeline of the photovoltaic module. The heating circulation system also works, and the hot fluid heated by the electric heater is selectively supplied to a heating end pipeline which is not electrified in the first electromagnetic valve to the fourth electromagnetic valve, so that the heating load is reduced, and the energy consumption is reduced.
As shown in fig. 3, the middle part of the back of the photovoltaic module is provided with a snow melting pipeline in a shape of a Chinese character 'mu', the outer side of the snow melting pipeline is covered with a heat-insulating pipe shell, and a space is reserved between the heat-insulating pipe shell and the snow melting pipeline.
The water inlet and outlet of the snow melting pipeline is arranged on the opposite angle side, and the snow melting pipelines of the photovoltaic modules are connected in series.
The section of the snow melting pipeline is semicircular frame-shaped, and the section of the heat-insulating pipe shell is semicircular.
The snow melting pipeline adopts a steel pipe.
The heat-insulating pipe shell adopts polyurethane heat-insulating pipe shell.
The snow melting pipeline with the shape of the Chinese character 'mu' on the back of the photovoltaic module is shown in figure 3. In fig. 3, h is the length (in unit mm) of the photovoltaic module, w is the width (in unit mm) of the photovoltaic module, m is the distance (in unit mm) between the steel pipe centerlines of the uppermost and lowermost lateral snow-melting pipelines, n is the distance (in unit mm) between the steel pipe centerlines of the left and right longitudinal snow-melting pipelines, g is the distance (in unit mm) between the steel pipe centerlines of the left and right longitudinal snow-melting pipelines and the side edges of the photovoltaic module, f is the distance (in unit mm) between the steel pipe centerlines of the uppermost and lowermost lateral snow-melting pipelines and the side edges of the photovoltaic module, and k is the width (in unit mm) of the semicircular polyurethane heat-insulation pipe shell.
In fig. 4, b is the outer circle radius (unit mm) of the semicircular steel pipe, c is the pipe wall thickness (unit mm) of the semicircular steel pipe, d is the inner hole radius (unit mm) of the semicircular polyurethane heat-insulating pipe shell, and e is the pipe wall thickness (unit mm) of the semicircular polyurethane heat-insulating pipe shell.
The parameter design principle is as follows:
m=0.75h
n=0.5w
f=0.125h
g=0.25w
1mm≦c≦3mm
30mm≦e≦60mm
d≧(b+2mm)
k=2d+2e
the snow melting pipeline in the shape of the Chinese character 'mu' is arranged on the back of the photovoltaic module, and the design can lead the snow melting speed of each part of the photovoltaic module to be more uniform. The semicircular frame-shaped steel pipes are used for the pipelines, so that the heat conduction contact area between the pipelines and the back plate of the photovoltaic module is increased, and the snow melting effect is improved. A semicircular polyurethane heat-insulating tube shell is arranged outside the steel tube to reduce heat loss caused by heat conduction to the surrounding environment.
Taking a photovoltaic module manufactured by Long Jile She Guang V technology Co., ltd. Model LR5-72HPH-550M as an example, the length of the module is 2256mm, and the width is 1133mm. The design and installation of the U-shaped snow melting pipeline on the back plate of the photovoltaic module are shown in figure 5. The cross-sectional views of the semicircular steel pipe and the semicircular polyurethane heat-insulating pipe shell are shown in figure 6.
The connection diagram of the snow melting pipeline on the back of the photovoltaic module is shown in fig. 7. The hot fluid output by the snow melting water separator flows in from the left upper port of the back pipeline of the first photovoltaic module and flows out from the right lower port of the back pipeline of the first photovoltaic module; the hot fluid flowing out of the right lower opening of the back pipeline of the first photovoltaic module flows in from the left lower opening of the back pipeline of the second photovoltaic module and flows out of the right upper opening of the back pipeline of the second photovoltaic module; the hot fluid flowing out of the right upper opening of the back pipeline of the second photovoltaic module flows in from the left upper opening of the back pipeline of the third photovoltaic module, flows out of the right lower opening of the back pipeline of the third photovoltaic module, and the like. The connection mode can enable all snow melting pipelines on the back of the photovoltaic module to flow hot fluid, avoid dead angles of pipelines without hot fluid circulation, and enable the photovoltaic module to be heated uniformly.
The schematic diagram of the functional complementary heat and power supply control system is shown in fig. 1. The functional complementary heat supply and power supply control system comprises a microcontroller circuit, a wireless communication circuit, a keyboard and liquid crystal display circuit, a 485 communication circuit, a temperature signal conditioning circuit, an irradiation signal conditioning circuit, a liquid level signal conditioning circuit and a switching value control circuit, wherein the microcontroller circuit is respectively connected with the wireless communication circuit, the keyboard and liquid crystal display circuit, the 485 communication circuit, the temperature signal conditioning circuit, the irradiation signal conditioning circuit, the liquid level signal conditioning circuit and the switching value control circuit, the switching value control circuit is respectively connected with a first circulating water pump, a second circulating water pump, a first electromagnetic valve to a second electromagnetic valve and an electric heater of a heating water tank, the liquid level signal conditioning circuit is connected with a liquid level sensor in the heating water tank and a liquid level sensor in a snow melting water tank, the irradiation signal conditioning circuit is connected with an irradiation sensor beside a photovoltaic module, the temperature signal conditioning circuit is connected with an indoor temperature sensor, and the switching value control circuit is respectively connected with a grid-connected inverter and an air source heat pump.
The system is controlled in real time through remote terminal equipment (including mobile phones, tablet computers and the like) through a wireless communication circuit, and real-time working states and historical faults of the system, and real-time data and historical data of each physical quantity are checked on line.
The system is provided with a keyboard and a liquid crystal display circuit, and the system is provided with a plurality of physical parameters and the working mode of the system is displayed in real time.
And the working states and various physical parameters of the grid-connected inverter and the air source heat pump are monitored in real time through a 485 communication circuit.
The voltage range of the analog signal sent by the temperature sensor is adjusted to the voltage range which can be received by the microcontroller through the temperature signal conditioning circuit, and the analog signal is changed into a digital signal for calculation through an AD module in the microcontroller.
The voltage range of the analog signal sent by the irradiation sensor is adjusted to the voltage range which can be received by the microcontroller through the irradiation signal conditioning circuit, and the analog signal is changed into a digital signal for calculation through an AD module in the microcontroller.
The voltage range of the analog signal sent by the liquid level sensor is adjusted to the voltage range which can be received by the microcontroller through the liquid level signal conditioning circuit, and the analog signal is changed into a digital signal for calculation through an AD module in the microcontroller.
The switching value control circuit controls the switching of the relay by the switching value control weak current signal sent by the microcontroller in an optocoupler isolation mode, so that the strong current equipment in the system is controlled.
The microcontroller circuit is a core circuit of the controller and is responsible for the work of data acquisition, calculation, real-time control and the like of the system, and the microcontroller circuit consists of a CPU and a peripheral circuit, wherein the CPU can be selected from chips such as a high-speed single chip microcomputer, a DSP, an ARM and the like, and the working frequency of the CPU is more than 70 MHz.
The indoor temperature sensors are respectively installed in a house to be heated, the height of the indoor temperature sensors is 1.2m from the ground, the indoor temperature sensors are installed at the positions of the middle points of the south wall and the north wall in the north-south direction, the temperature sensors of the back plates of the components are installed at the central positions of the back surfaces of the photovoltaic components, and the temperature sensors of the back plates of the components are far away from snow melting pipelines of the back plates of the components. The irradiation sensor is arranged near the outdoor photovoltaic module, and the irradiation sensor cannot be shielded by shadows. The liquid level sensor is respectively arranged in the heating water tank and the snow melting water tank. The object controlled by the switching value control circuit comprises a first circulating water pump, a second circulating water pump, a first electromagnetic valve to a eighth electromagnetic valve and an electric heater in a heating water tank.
Claims (2)
1. The functional complementary heat supply and power supply control system comprises a microcontroller circuit, a wireless communication circuit, a keyboard and liquid crystal display circuit, a 485 communication circuit, a temperature signal conditioning circuit, an irradiation signal conditioning circuit, a liquid level signal conditioning circuit and a switching value control circuit, and is characterized in that the microcontroller circuit is respectively connected with the wireless communication circuit, the keyboard and liquid crystal display circuit, the 485 communication circuit, the temperature signal conditioning circuit, the irradiation signal conditioning circuit, the liquid level signal conditioning circuit and the switching value control circuit, the switching value control circuit is respectively connected with a first circulating water pump, a second circulating water pump, a first electromagnetic valve to a eighth electromagnetic valve and an electric heater of a heating water tank, the liquid level signal conditioning circuit is connected with a liquid level sensor in the heating water tank and a liquid level sensor in a snow melting water tank, the irradiation signal conditioning circuit is connected with an irradiation sensor beside a photovoltaic module, the temperature signal conditioning circuit is connected with an indoor temperature sensor, and the 485 communication circuit is respectively connected with a grid-connected inverter and an air source heat pump.
2. The function complementary type heat and power supply control system according to claim 1, wherein the indoor temperature sensor is installed in a heated house, the indoor temperature sensor is installed at the midpoint of a south wall and a north wall in the north-south direction, the indoor temperature sensor is selected to be 1.2m away from the ground, and the indoor temperature sensor is installed at the central position of the back of the photovoltaic module and is far away from a snow melting pipeline of the module back plate; the irradiation sensor is arranged near the outdoor photovoltaic module, and cannot be shielded by shadows; the liquid level sensor is respectively arranged in the heating water tank and the snow melting water tank; the object controlled by the switching value control circuit comprises a first circulating water pump, a second circulating water pump, a first electromagnetic valve to a eighth electromagnetic valve and an electric heater in a heating water tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320637191.7U CN219868095U (en) | 2023-03-28 | 2023-03-28 | Function complementary type heat supply and power supply control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320637191.7U CN219868095U (en) | 2023-03-28 | 2023-03-28 | Function complementary type heat supply and power supply control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219868095U true CN219868095U (en) | 2023-10-20 |
Family
ID=88319441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320637191.7U Active CN219868095U (en) | 2023-03-28 | 2023-03-28 | Function complementary type heat supply and power supply control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219868095U (en) |
-
2023
- 2023-03-28 CN CN202320637191.7U patent/CN219868095U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201875878U (en) | Solar photoelectric mutual-compensation electric water heater | |
| CN102012130A (en) | Solar energy, heat pump and capillary network compound hot water heating/refrigerating device | |
| CN102853603B (en) | Multisource heat pump temperature adjusting device and energy-saving control method | |
| CN104456702A (en) | Full-glass tube type solar centralized hot water supplying system | |
| CN201059786Y (en) | Central single door type intelligent solar energy hot-water apparatus | |
| CN101059257A (en) | Centralized single-apartment type intelligent solar energy hot water-making system | |
| CN103438595B (en) | Solar water heater wind energy motive power pipeline water circulation defroster | |
| CN219868095U (en) | Function complementary type heat supply and power supply control system | |
| CN209744494U (en) | Floor radiant heating system | |
| CN204665740U (en) | Solar photovoltaic water pump heating and refrigeration system | |
| CN2498527Y (en) | Energy stored central air conditioner with ground temperature | |
| CN108253620B (en) | Energy-saving, safe and environment-friendly water electromagnetic heat source system based on Internet + | |
| CN219514034U (en) | Snow melting device for photovoltaic module | |
| CN219572067U (en) | Thermoelectric synergistic energy system | |
| CN204574343U (en) | Each door type phase change energy-storage type solar water heating air conditioning | |
| CN212715157U (en) | Integrated integral type booster pump room of solar energy storage high and cold resistance | |
| CN205156207U (en) | Novel energy -conserving air conditioner of low ebb electricity | |
| CN2624125Y (en) | Efficient constant temperature solar water heater | |
| CN207797446U (en) | A kind of soil source heat pump and solar association heating system improving source inflow temperature | |
| CN116293865A (en) | Heating and snow melting controller | |
| CN202598735U (en) | Multi-source heat pump air-conditioning device | |
| CN116192033A (en) | Photovoltaic module snow melt structure | |
| CN116304479A (en) | Carbon emission reduction calculation method | |
| CN116465008A (en) | Multi-energy coupling type energy system | |
| CN116317938A (en) | Snow melting monitoring method for photovoltaic module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |