CN219364892U - Air-cooled PV/T-based anti-freezing ventilation energy-saving system for integrated pump station - Google Patents
Air-cooled PV/T-based anti-freezing ventilation energy-saving system for integrated pump station Download PDFInfo
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- 238000009423 ventilation Methods 0.000 title claims abstract description 79
- 238000007710 freezing Methods 0.000 title claims abstract description 28
- 239000003570 air Substances 0.000 claims abstract description 107
- 230000005693 optoelectronics Effects 0.000 claims abstract description 10
- 239000012080 ambient air Substances 0.000 claims abstract description 8
- 230000005669 field effect Effects 0.000 claims description 45
- 238000012423 maintenance Methods 0.000 claims description 30
- 238000001816 cooling Methods 0.000 claims description 19
- 238000010438 heat treatment Methods 0.000 claims description 14
- 238000007726 management method Methods 0.000 claims description 13
- 238000005286 illumination Methods 0.000 claims description 12
- 230000002528 anti-freeze Effects 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 2
- 238000013024 troubleshooting Methods 0.000 claims description 2
- 230000008014 freezing Effects 0.000 abstract description 10
- 230000002265 prevention Effects 0.000 abstract description 7
- 238000004134 energy conservation Methods 0.000 abstract description 6
- 239000007789 gas Substances 0.000 description 16
- 230000009286 beneficial effect Effects 0.000 description 11
- 238000000034 method Methods 0.000 description 9
- 238000005265 energy consumption Methods 0.000 description 6
- 230000006870 function Effects 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 239000010865 sewage Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000009746 freeze damage Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model relates to the technical field of freezing prevention, ventilation and energy conservation of integrated pump stations, and provides an air-cooled PV/T-based integrated pump station freezing prevention, ventilation and energy conservation system, which comprises a hot air compensation circulation loop, an optoelectronic loop and an integrated controller; the hot air compensation circulation loop comprises a barrel, an outlet circulation fan, a first third ventilation valve, an air channel of an air-cooled PV/T module, a second third ventilation valve and an inlet circulation fan which are sequentially communicated; the barrel is internally provided with a thermosensitive switch and a power pump; the first three ventilation valves and the second three ventilation valves are provided with an open air port which is open to the ambient air; the optoelectronic loop comprises a photoelectric component and an electric storage component of the air-cooled PV/T module, wherein the electric storage component is electrically connected with the photoelectric component and supplies power to the outlet circulating fan, the inlet circulating fan, the integrated controller and the power pump; the integrated controller is connected with the thermal switch and used for controlling the outlet circulating fan, the first third ventilation valve, the second third ventilation valve, the inlet circulating fan, the electric storage component and the power pump.
Description
Technical Field
The utility model relates to the technical field of freezing prevention, ventilation and energy conservation of integrated pump stations, in particular to an air-cooled PV/T-based freezing prevention, ventilation and energy conservation system of an integrated pump station.
Background
The integrated pump station is a highly integrated pump station integrating the functions of traditional pump house, sewage lifting, ventilation, control and the like, and is equipment for lifting sewage, rainwater and wastewater. Compared with the traditional pump station, the integrated pump station has the characteristics of high environmental adaptability, simple construction, short construction period, small engineering quantity, good leakage resistance and the like. However, the environmental temperature in winter in northern China is relatively low, the environmental temperature is too low, sewage in the pump station is frozen, the pipeline is deformed under frost load due to freezing, even the valve is damaged to cause leakage, the operation of the integrated pump station is greatly influenced, and the sewage in the pump station cannot be normally discharged.
At present, the most common passive antifreezing method is to wrap the outer layer of the pump station barrel by a heat insulation layer, and the method has poor performance at extremely low temperature and low overall efficiency. In addition, there is an active anti-freezing method, namely, the pump station barrel is electrically heated in extreme weather, and energy waste is caused because the energy consumption in the heating process is uncertain.
In addition, during the long-term operation of the buried integrated pump station, a large amount of harmful gas can be accumulated in the barrel of the pump station, when the pump station fails, personnel are required to enter the pump station for maintenance, and the harmful gas can be threatening to the health or life of maintenance personnel. The existing solution is that the barrel cover is opened before maintenance personnel enter the barrel, and harmful gas is discharged through long-time natural ventilation before maintenance, which is a time-consuming process and can not be completely discharged when some harmful gas is densely deposited at the bottom; for this reason, there is also a method in which an exhaust duct and an axial flow fan are additionally installed on the tub cover, and harmful gas is exhausted by forced ventilation of the axial flow fan, which requires a large amount of electric power consumption.
Finally, submersible pumps (power pumps) and electrical control cabinets inside the pump station also consume a large amount of electrical energy during the pumping process. Therefore, effective measures must be taken to avoid damage to the integrated pump station while ensuring the safety of maintenance personnel and low energy consumption operation of the pump station.
Disclosure of Invention
In order to solve the technical problems, the utility model provides an air-cooled PV/T-based integrated pump station anti-freezing ventilation energy-saving system, which comprises a hot air compensation circulation loop, an optoelectronic loop and an integrated controller;
the hot air compensation circulation loop comprises a barrel, an outlet circulation fan, a first third ventilation valve, an air duct of an air-cooled PV/T module, a second third ventilation valve and an inlet circulation fan which are sequentially communicated to form a loop; the barrel is internally provided with a thermosensitive switch and a power pump; the first three ventilation valves and the second three ventilation valves are provided with an open air port which is open to the ambient air;
the optoelectronic loop comprises a photoelectric component and an electric storage component of the air-cooled PV/T module, wherein the electric storage component is electrically connected with the photoelectric component and supplies power to the outlet circulating fan, the inlet circulating fan, the integrated controller and the power pump;
the integrated controller is connected with the thermal switch and used for controlling the outlet circulating fan, the first third ventilation valve, the second third ventilation valve, the inlet circulating fan, the electric storage component and the power pump.
Optionally, the power storage component includes a battery and an inverter;
the storage battery is used for storing electric energy converted from solar energy by the photoelectric component of the air-cooled PV/T module;
the inverter is used for inverting the electric energy stored by the storage battery into alternating current for each electrical device.
Optionally, the integrated controller includes a PLC control module, and the PLC control module is configured to selectively execute a low temperature operation mode, a high temperature operation mode, or a ventilation operation mode according to a barrel temperature of the pump station barrel and a fault maintenance requirement.
Optionally, when the thermal switch in the barrel of the integrated pump station detects that the temperature in the barrel is lower than a preset temperature threshold, the integrated controller selects to execute a low-temperature operation mode:
the integrated controller controls the first three-way valve and the second three-way valve to be switched to be communicated with two air inlets except the open air inlet;
the integrated controller starts an outlet circulating fan and an inlet circulating fan, cold air in the cylinder body is driven by the outlet circulating fan to be sent into an air channel of the air cooling type PV/T module through a first three-way valve, and the air cooling type PV/T module absorbs solar energy to convert the cold air into hot air; after passing through the second third ventilation valve, the hot air is sent back into the cylinder body by the inlet circulating fan, and the hot air and the cylinder body fully exchange heat and then become cold air;
the photovoltaic module of the air-cooled PV/T module converts solar energy into electric energy, the electric energy is stored in a storage battery of the storage module, and the inverter converts the electric energy of the storage battery and then provides an outlet circulating fan, an inlet circulating fan, an integrated controller and a power pump of a pump station for use.
Optionally, a hot air box is arranged at a connecting air duct section of the air-cooled PV/T module and the second third ventilation valve, an electric heater and a second thermal switch are arranged in the hot air box, the electric heater is electrically connected with the electric storage component through the second thermal switch, and the second thermal switch is electrically connected with the integrated controller;
the electric power storage component is provided with an illumination meter which is electrically connected with the integrated controller; in the low-temperature operation mode, if the illumination detected by the illumination meter is smaller than the set illumination threshold, the integrated controller turns on the electric heater of the hot air box through the second thermal switch.
Optionally, when the thermal switch in the barrel of the integrated pump station detects that the temperature in the barrel is not lower than a preset temperature threshold, the integrated controller selects to execute the high-temperature operation mode:
the outlet circulating fan and the inlet circulating fan of the integrated controller do not work; the photovoltaic module of the air-cooled PV/T module is only used for converting solar energy into electric energy and storing the electric energy into a storage battery of the storage module, and the inverter converts the electric energy of the storage battery and then supplies the electric energy to the integrated controller and a power pump of the pump station.
Optionally, when maintenance personnel are required to enter the barrel for maintenance, the integrated controller selects to execute a ventilation operation mode:
the integrated controller controls the first three-way valve and the second three-way valve to be switched into communication with two air inlets except for the air inlet connected with the air channel of the air-cooled PV/T module; the integrated controller starts an outlet circulating fan and an inlet circulating fan, ambient air is sent into the cylinder body through the inlet circulating fan by the second third ventilation valve, and air in the cylinder body is pumped out and discharged through the first three-way valve by the outlet circulating fan;
the photovoltaic module of the air-cooled PV/T module is only used for converting solar energy into electric energy and storing the electric energy into a storage battery of the storage module, and the inverter converts the electric energy of the storage battery and then provides the electric energy for the outlet circulating fan, the inlet circulating fan and the integrated controller.
Optionally, the inverter is configured with an inverter circuit, and the inverter circuit includes a field effect transistor Q1, a field effect transistor Q2, a field effect transistor Q3, a field effect transistor Q4, a diode D1, a diode D2, a diode D3, a diode D4, and a transformer T1;
the positive electrode V+ of the storage battery is respectively connected with the source electrode of the field effect transistor Q1, the cathode of the diode D1, the source electrode of the field effect transistor Q3 and the cathode of the diode D3; the cathode V-of the storage battery is respectively connected with the drain electrode of the field effect transistor Q2, the anode of the diode D2, the drain electrode of the field effect transistor Q4 and the anode of the diode D4; the drain electrode of the Q1 is respectively connected with the source electrode of the field effect transistor Q2, the anode of the diode D1, the cathode of the diode D2 and the input pin 1 of the transformer T1; the drain electrode of the field effect transistor Q3 is respectively connected with the source electrode of the field effect transistor Q4, the anode of the diode D3, the cathode of the diode D4 and the input pin 2 of the transformer T1; the output pin 3 and the output pin 4 of the transformer T1 are ac output terminals.
Optionally, the integrated controller comprises an operation processor, and the integrated controller is connected with an ambient temperature sensor and an in-barrel temperature sensor;
the environment temperature sensor is used for detecting outdoor environment temperature;
the barrel internal temperature sensor is used for detecting the barrel internal temperature of the barrel body of the integrated pump station;
the operation processor is used for optimizing and determining the heating power of the electric heater according to the outdoor environment temperature, the barrel temperature and the illuminance condition.
Optionally, the integrated controller includes a network connector, where the network connector is used to connect to a remote management terminal through the internet;
the integrated controller can interact data with the remote management terminal through the network connector or acquire upgrade software from the remote management terminal for updating.
According to the air cooling type PV/T-based integrated pump station anti-freezing ventilation energy-saving system, the hot air compensation circulation loop is adopted to cool the air cooling type PV/T module on one hand so as to enable the air cooling type PV/T module to keep high efficiency to convert solar energy into electric energy, on the other hand, the air cooling type PV/T module is used for conveying heat to a barrel of the integrated pump station for anti-freezing in winter, and the air cooling type PV/T-based integrated pump station anti-freezing ventilation energy-saving system can also be used for ventilating and removing harmful gas gathered in the integrated pump station when maintenance personnel are required to perform equipment maintenance of the integrated pump station, so that the safety of the maintenance personnel is ensured; the air-cooled PV/T module converts solar energy into electric energy and stores the electric energy for electric equipment such as a power pump, a circulating fan and the like, so that clean solar energy is fully utilized, and multiple functions such as freeze prevention, ventilation, energy conservation and the like of the integrated pump station are integrated under the unified control of the integrated controller.
Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model. The objectives and other advantages of the utility model will be realized and attained by the structure particularly pointed out in the written description and claims thereof as well as the appended drawings.
The technical scheme of the utility model is further described in detail through the drawings and the embodiments.
Drawings
The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:
FIG. 1 is a schematic diagram of an integrated pump station anti-freezing ventilation energy-saving system based on an air-cooled PV/T in an embodiment of the utility model;
FIG. 2 is a schematic diagram of an embodiment of an air-cooled PV/T-based integrated pump station antifreeze ventilation energy saving system of the present utility model employing a hot bellows;
FIG. 3 is a schematic diagram of an inverter circuit employed by an inverter of an electric storage component of an embodiment of an air-cooled PV/T-based integrated pump station freeze-proofing and ventilating energy-saving system of the present utility model;
FIG. 4 is a schematic diagram of an integrated controller connection employed by an embodiment of an air-cooled PV/T based integrated pump station freeze protection and ventilation economizer system of the present utility model.
Detailed Description
The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present utility model only, and are not intended to limit the present utility model.
As shown in fig. 1, the embodiment of the utility model provides an integrated pump station anti-freezing ventilation energy-saving system based on an air-cooled type PV/T, which comprises a hot air compensation circulation loop, an optoelectronic loop and an integrated controller 8;
the hot air compensation circulation loop comprises a barrel body 1, an outlet circulation fan 2, a first third ventilation valve 3, an air channel of an air-cooled PV/T module 4, a second third ventilation valve 5 and an inlet circulation fan 6 which are sequentially communicated to form a loop; the barrel 1 is internally provided with a thermal switch 9 and a power pump 10; the first three ventilation valve 3 and the second three ventilation valve 5 are provided with an open air port which is open to the ambient air;
the optoelectronic loop comprises a photoelectric component of the air-cooled PV/T module 4 and an electric storage component 7, wherein the electric storage component 7 is electrically connected with the photoelectric component and supplies power to the outlet circulating fan 2, the inlet circulating fan 6, the integrated controller 8 and the power pump 10;
the integrated controller 8 is connected with the thermal switch 9 and is used for controlling the outlet circulation fan 2, the first three-way ventilation valve 3, the second three-way ventilation valve 5, the inlet circulation fan 6, the power storage component 7 and the power pump 10.
The working principle and beneficial effects of the technical scheme are as follows: according to the scheme, the hot air compensation circulation loop is adopted to cool the air cooling type PV/T module on one hand, so that the air cooling type PV/T module can be kept high-efficiently to convert solar energy into electric energy, on the other hand, the heat of the air cooling type PV/T module is conveyed to the barrel of the integrated pump station for anti-freezing in winter, and the air cooling type PV/T module can be ventilated to remove harmful gas gathered in the integrated pump station when maintenance personnel are required to perform equipment maintenance of the integrated pump station, so that the safety of the maintenance personnel is ensured; the air-cooled PV/T module converts solar energy into electric energy and stores the electric energy for electric equipment such as a power pump, a circulating fan and the like, so that clean solar energy is fully utilized, and multiple functions such as freeze prevention, ventilation, energy conservation and the like of the integrated pump station are integrated under the unified control of the integrated controller.
In one embodiment, the power storage assembly 7 includes a battery and an inverter;
the storage battery is used for storing electric energy converted from solar energy by the photoelectric component of the air-cooled PV/T module 4;
the inverter is used for inverting the electric energy stored by the storage battery into alternating current for each electrical device.
The working principle and beneficial effects of the technical scheme are as follows: the electric power storage component of this scheme sets up battery and dc-to-ac converter, and the battery stores the electric energy that the photoelectricity part of air-cooled type PV/T module 4 produced, and the dc-to-ac converter inverts the electric energy that the battery stored into alternating current and supplies each electrical equipment to use, has realized that solar energy power generation can regard as the power of consumer.
In one embodiment, as shown in fig. 4, the integrated controller 8 includes a PLC control module 81, and the PLC control module 81 is configured to selectively execute a low temperature operation mode, a high temperature operation mode, or a ventilation operation mode according to the in-tank temperature and the troubleshooting requirements of the pump station barrel 1.
The working principle and beneficial effects of the technical scheme are as follows: according to the scheme, the PLC control module is arranged, and the control module is selectively executed in a low-temperature operation mode, a high-temperature operation mode or a ventilation operation mode according to set conditions, so that multiple functions of anti-freezing, ventilation, energy saving and the like of the integrated pump station are integrated, and the control module is suitable for functional requirements in various different scenes.
In one embodiment, when the thermal switch 9 in the integrated pump station cylinder 1 detects that the temperature in the cylinder is below a preset temperature threshold, the integrated controller 8 selects to execute the low temperature operation mode:
the integrated controller 8 controls the first three-way valve 3 and the second three-way valve 5 to be switched to be communicated with two air openings except the open air opening;
the integrated controller 8 starts the outlet circulating fan 2 and the inlet circulating fan 6, cold air in the cylinder 1 is driven by the outlet circulating fan 2 to be sent into an air channel of the air cooling type PV/T module 4 through the first three-way valve 3, and the air cooling type PV/T module 4 absorbs solar energy to convert the cold air into hot air; after passing through the second third ventilation valve 5, the hot air is sent back into the cylinder 1 by the inlet circulating fan 6, and the hot air and the cylinder 1 exchange heat fully and then become cold air;
the photovoltaic module of the air-cooled PV/T module 4 converts solar energy into electric energy, the electric energy is stored in a storage battery of the storage module 7, and the inverter converts the electric energy of the storage battery and then the electric energy is used for the outlet circulating fan 2, the inlet circulating fan 6, the integrated controller 8 and the power pump 10 of the pump station.
The working principle and beneficial effects of the technical scheme are as follows: under the unified control of the integrated controller, when the temperature in the barrel is lower than a preset temperature threshold value, the photovoltaic module of the air-cooled PV/T module 4 converts solar energy into heat energy and electric energy simultaneously, the heat energy is transmitted to a pump station for heating and antifreezing through air circulation, and the electric energy is simultaneously supplied to a circulating fan and a power pump for use; the energy self-supply of the integrated pump station in low-temperature operation is realized; wherein the temperature threshold may be set to a value slightly above the frozen temperature, for example 4 ℃.
In one embodiment, as shown in fig. 2, a hot blast box 11 is arranged at a connecting wind pipe section of a wind channel of the air-cooled PV/T module 4 and the second three ventilation valve 5, an electric heater and a second thermal switch 12 are arranged in the hot blast box 4, the electric heater is electrically connected with the power storage component 7 through the second thermal switch 12, and the second thermal switch 12 is electrically connected with the integrated controller 8;
the electricity storage module 7 is provided with an illumination meter 20, as shown in fig. 4, the illumination meter 20 being electrically connected to the integrated controller 8; in the low temperature operation mode, if the light meter 20 detects that the illuminance is less than the set illuminance threshold, the integrated controller 8 turns on the electric heater of the hot bellows 4 through the second thermal switch 12.
The working principle and beneficial effects of the technical scheme are as follows: according to the scheme, the hot air box is provided with the electric heater, when illumination is insufficient, the storage battery of the power storage assembly supplies power for the electric heater, the temperature of hot air is further improved, and the cylinder is ensured to obtain enough thermal compensation to avoid freezing.
In one embodiment, when the thermal switch 9 in the integrated pump station cylinder 1 detects that the temperature in the cylinder is not lower than the preset temperature threshold, the integrated controller 8 selects to perform the high temperature operation mode:
the outlet circulating fan 2 and the inlet circulating fan 6 of the integrated controller 8 do not work; the photovoltaic module of the air-cooled PV/T module 4 is only used for converting solar energy into electric energy and storing the electric energy into a storage battery of the storage module 7, and the inverter converts the electric energy of the storage battery and then uses the electric energy for the integrated controller 8 and the power pump 10 of the pump station.
The working principle and beneficial effects of the technical scheme are as follows: under the unified control of the integrated controller, when the temperature in the barrel is not lower than a preset temperature threshold, the scheme indicates that the air temperature cannot be frozen, so that the heat of the air cooling type PV/T module 4 is not required to be transmitted to an integrated pump station; therefore, the photovoltaic module of the PV/T module 4 converts solar energy into electric energy for the power pump to use, and the redundant electric energy is stored in the storage battery, so that the self-supply of energy during the high-temperature operation of the integrated pump station is realized; three ventilation valves can be arranged between the outlet circulating fan and the cylinder body and between the inlet circulating fan and the cylinder body, one air port of the three-way air valve is communicated with ambient air, and ventilation reduction for the air-cooled PV/T module is realized through switching of the three ventilation valves and operation of the outlet circulating fan and the inlet circulating fan in a high-temperature operation mode so as to ensure high thermoelectric efficiency of the air-cooled PV/T module.
In one embodiment, the integrated controller 8 selects to perform a ventilation mode of operation when maintenance personnel are required to enter the interior of the cartridge 1 for servicing:
the integrated controller 8 controls the first three-way valve 3 and the second three-way valve 5 to be switched to be communicated with two air inlets except for the air inlet connected with the air channel of the air-cooled PV/T module 4; the integrated controller 8 starts the outlet circulating fan 2 and the inlet circulating fan 6, ambient air is sent into the cylinder 1 through the inlet circulating fan 6 by the second three-way ventilation valve 5, and air in the cylinder 1 is pumped out and discharged through the first three-way valve 3 by the outlet circulating fan 2;
the photovoltaic module of the air-cooled PV/T module 4 is only used for converting solar energy into electric energy and storing the electric energy into a storage battery of the electric storage module 7, and the inverter converts the electric energy of the storage battery and then provides the electric energy for the outlet circulating fan 2, the inlet circulating fan 6 and the integrated controller 8.
The working principle and beneficial effects of the technical scheme are as follows: if the power pump of the integrated pump station fails, maintenance personnel are required to enter the cylinder for maintenance; because the integrated pump station cylinder body is sealed for a long time, harmful gas generated in the pump station cylinder body gathers, and if maintenance personnel directly enter the pump station cylinder body, danger can occur; therefore, by adopting the scheme, before maintenance personnel enter, the inlet circulating fan and the outlet circulating fan are started by switching the three ventilation valves, and harmful gas is removed under the rapid forced ventilation action of the inlet circulating fan and the outlet circulating fan, so that the personal safety of the maintenance personnel is ensured by the ventilation effect; the electric energy generated by the photovoltaic module of the air-cooled PV/T module is supplied to the inlet circulating fan and the outlet circulating fan for use, and no external power supply is needed for supplying power in the whole process.
In one embodiment, as shown in fig. 3, the inverter is configured with an inverter circuit including a field effect transistor Q1, a field effect transistor Q2, a field effect transistor Q3, a field effect transistor Q4, a diode D1, a diode D2, a diode D3, a diode D4, and a transformer T1;
the positive electrode V+ of the storage battery is respectively connected with the source electrode of the field effect transistor Q1, the cathode of the diode D1, the source electrode of the field effect transistor Q3 and the cathode of the diode D3; the cathode V-of the storage battery is respectively connected with the drain electrode of the field effect transistor Q2, the anode of the diode D2, the drain electrode of the field effect transistor Q4 and the anode of the diode D4; the drain electrode of the Q1 is respectively connected with the source electrode of the field effect transistor Q2, the anode of the diode D1, the cathode of the diode D2 and the input pin 1 of the transformer T1; the drain electrode of the field effect transistor Q3 is respectively connected with the source electrode of the field effect transistor Q4, the anode of the diode D3, the cathode of the diode D4 and the input pin 2 of the transformer T1; the output pin 3 and the output pin 4 of the transformer T1 are ac output terminals.
The working principle and beneficial effects of the technical scheme are as follows: the direct current of the storage battery in the scheme outputs alternating current after alternately working in pairs through a field effect tube Q1, a field effect tube Q2, a field effect tube Q3 and a field effect tube Q4; the phase difference between the field effect tube Q1 and the field effect tube Q2 is 180 degrees, and the alternating voltage output by the field effect tube Q1 and the field effect tube Q2 changes along with the output change of the field effect tube Q1 and the field effect tube Q2; the field effect transistor Q3 and the field effect transistor Q4 are simultaneously conducted to form a follow current loop, so that the waveform of the output voltage is not influenced by the inductive load, the problem of low efficiency caused by the inductive load is avoided, the efficiency of the transformer T1 is improved, and the inversion loss of electric power is reduced.
In one embodiment, as shown in fig. 4, the integrated controller 8 includes an arithmetic processor 82, and the integrated controller 8 is connected with the ambient temperature sensor 40 and the in-tub temperature sensor 30;
the ambient temperature sensor 40 is for detecting an outdoor ambient temperature;
the in-barrel temperature sensor 30 is used for detecting the in-barrel temperature in the barrel of the integrated pump station;
the operation processor 82 is used for optimally determining the heating power of the electric heater according to the outdoor environment temperature, the barrel temperature and the illuminance condition.
The working principle and beneficial effects of the technical scheme are as follows: according to the scheme, an ambient temperature sensor is arranged to detect outdoor ambient temperature, a barrel temperature sensor in a barrel body of an integrated pump station is used for detecting barrel temperature, and an operation processor is used for optimizing and determining heating power of an electric heater by combining illuminance conditions detected by an illuminometer; by optimizing: on one hand, the system freeze damage caused by the fact that the heating power of the electric heater is too small and the freeze protection of the integrated pump station is effectively guaranteed is avoided; on the other hand, the electric heater can be prevented from wasting energy caused by too high electric energy consumption due to too high heating power, and the electric power of the storage battery can be ensured to be longer.
In one embodiment, the arithmetic processor calculates the heating power of the electric heater using the following formula:
in the above formula, Q represents the heating power of the electric heater; c represents the specific heat of the gas in the cylinder; ρ represents the gas density in the cylinder; v represents the cylinder volume; t is t 0 Representing a preset temperature threshold; t is t 1 Indicating the temperature in the barrel; t represents the expected time period in the cylinder from the temperature control change in the cylinder to the temperature threshold; k (k) 1 The heat loss rate of the cylinder body, namely, the heat loss in unit time under unit temperature difference is represented; t is t 2 Indicating an outdoor ambient temperature; k (k) 2 The heat transfer proportion of the air-cooled PV/T module is represented, namely the proportion of the heat transferred to the air in the air duct by the air-cooled PV/T module to the total conversion heat; τ represents the thermal conversion coefficient of the air-cooled PV/T module, i.e., the conversion heat per unit illuminance per unit time; omega represents the illuminance of the air-cooled PV/T module position;
the working principle and beneficial effects of the technical scheme are as follows: the scheme provides an optional heating power optimization control mode of the electric heater, namely, the heating power of the electric heater is calculated through the formula, so that the heating power of the electric heater is accurately controlled, the effect of effectively preventing freezing of an integrated pump station is achieved, and the use of electric power can be ensured to be more durable.
In one embodiment, as shown in fig. 4, the integrated controller includes a network connector 83, and the network connector 83 is used to connect to a remote management terminal through the internet;
the integrated controller 8 can interact data with the remote management terminal 83 through a network connector or acquire upgrade software from the remote management terminal for updating.
The working principle and beneficial effects of the technical scheme are as follows: the scheme is that the network connector is arranged to be connected with the Internet, and data interaction is carried out after the authentication is carried out on the remote management terminal connected with the Internet; on one hand, the remote management terminal can remotely monitor and manage the integrated pump station, and on the other hand, remote software upgrading can be realized, so that the field maintenance frequency of management maintenance personnel is reduced, and the maintenance and management cost is reduced.
The air-cooled PV/T-based integrated pump station anti-freezing ventilation energy-saving system overcomes the defects of the prior art, integrates multiple functions of freezing prevention, ventilation, power generation and the like, and has the advantages of low cost, low energy consumption, high safety and the like.
The utility model aims to solve the problems of high energy consumption, freezing and harmful gas deposition of an integrated pump station, and provides an air-cooled PV/T-based integrated pump station energy-saving system which combines an anti-freezing, ventilating and air-cooled photovoltaic/T module and an integrated sewage/rainwater pump station. On one hand, the system avoids icing in the pump station, and the annual energy consumption equipment of the pump station realizes the power support function; on the other hand, when the cylinder needs to be maintained, the system can rapidly ventilate and remove H in the cylinder of the pump station 2 S and other harmful gases effectively ensure the safety of maintenance personnel; the system has good energy-saving space and wider practical value.
The aim of the utility model can be achieved by the following technical scheme: the air cooling PV/T based integrated pump station anti-freezing ventilation energy-saving system comprises a hot air compensation circulation loop, an optoelectronic loop and an integrated controller; the hot air compensation circulation loop comprises a cylinder, an outlet circulation fan, an air-cooled PV/T module, a hot air box (comprising an electric heater and a thermal switch) and an inlet circulation fan; the optoelectronic circuit comprises an air-cooled PV/T module, a battery and an inverter; the integrated controller is connected with a thermal switch.
The whole system is uniformly controlled by an integrated controller, and has the following three operation modes:
1. mode of low temperature operation
When the temperature detected by the integrated pump station barrel heat-sensitive switch is lower than the preset temperature, the three-way valves ab and de are opened, and other valves are opened. Firstly, cold air enters an air-cooled PV/T module under the drive of a circulating fan, and solar energy is absorbed and converted into hot air indirectly through forced convection. Secondly, hot air enters the cylinder through the hot air box, and the hot air and the cylinder fully exchange heat and then become cold air, and then enter the PV/T module again. On the one hand, the photovoltaic module converts solar energy into heat energy, and can generate electric energy for heating the pump station and storing the electric energy in a battery, and the electric energy is converted by the inverter and then used for a power pump and other electrical equipment of the pump station; on the other hand, the electric heater is arranged in the hot air box, and when the illumination is insufficient, the battery also supplies power for the electric heater, so that the cylinder is ensured to obtain enough thermal compensation to avoid freezing.
2. High temperature mode of operation
When the thermal switch detects that the temperature in the pump station barrel is higher than the preset temperature, all valves of the system are closed. At this time, the air-cooled PV/T module is only used for generating electric energy and storing the electric energy in a storage battery of the electric storage assembly, and the storage battery is converted into power equipment in the integrated pump station by the frequency converter to provide electric energy.
3. Ventilation mode of operation
When maintenance personnel need to enter the cylinder for maintenance, harmful gas in the cylinder is firstly removed, at the moment, three-way valves ac and df are opened, and other valves are closed; the air-cooled PV/T module is used only to generate electricity to power circulation fans and other electrical equipment. Harmful gas is removed under the rapid forced ventilation effect of the inlet circulating fan and the outlet circulating fan, the personal safety of maintenance personnel is guaranteed through the ventilation effect, and no external power supply is needed in the whole process.
Compared with the prior art, the utility model has the following advantages:
1. the antifreezing effect is better: the system fully utilizes solar energy to fully exchange heat for the low-temperature integrated pump station through the air-cooled PV/T module, so that the problem of icing in the integrated pump station is effectively avoided.
2. The safety is high: under the condition of no external power supply, the harmful gas in the pump station is rapidly and effectively treated, so that the personal safety of maintenance personnel is ensured.
3. The system is more energy-saving, the higher the photovoltaic utilization efficiency is, the greater the energy-saving potential is: when the air-cooled PV/T module converts solar energy into electric energy and heat energy, most of heat is taken away in the flowing process of cold air, so that the temperature of the photovoltaic panel is reduced, and the low temperature enables the air-cooled PV/T module to have higher overall efficiency. The electric equipment in the pump station mainly depends on the electric energy generated by the air-cooled PV/T module, so that the overall economic benefit of the system is higher. Of course, other power grid capacities may be used once the sunlight is insufficient.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present utility model without departing from the spirit or scope of the utility model. Thus, it is intended that the present utility model also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (10)
1. An air-cooled PV/T-based integrated pump station anti-freezing ventilation energy-saving system is characterized by comprising a hot air compensation circulation loop, an optoelectronic loop and an integrated controller;
the hot air compensation circulation loop comprises a barrel, an outlet circulation fan, a first third ventilation valve, an air channel of an air-cooled PV/T module, a second third ventilation valve and an inlet circulation fan which are sequentially communicated; the barrel is internally provided with a thermosensitive switch and a power pump; the first three ventilation valves and the second three ventilation valves are provided with an open air port which is open to the ambient air;
the optoelectronic loop comprises a photoelectric component and an electric storage component of the air-cooled PV/T module, wherein the electric storage component is electrically connected with the photoelectric component and supplies power to the outlet circulating fan, the inlet circulating fan, the integrated controller and the power pump;
the integrated controller is connected with the thermal switch and used for controlling the outlet circulating fan, the first third ventilation valve, the second third ventilation valve, the inlet circulating fan, the electric storage component and the power pump.
2. The air-cooled PV/T-based integrated pump station anti-freezing and ventilating energy-saving system of claim 1, wherein the power storage assembly comprises a storage battery and an inverter;
the storage battery is used for storing electric energy converted from solar energy by the photoelectric component of the air-cooled PV/T module;
the inverter is used for inverting the electric energy stored by the storage battery into alternating current for each electrical device.
3. The air-cooled PV/T-based integrated pump station freeze-prevention and ventilation energy saving system of claim 1, wherein the integrated controller comprises a PLC control module for selectively executing a low temperature operation mode, a high temperature operation mode, or a ventilation operation mode according to the in-barrel temperature and the troubleshooting requirements of the pump station barrel.
4. An integrated pump station freeze protection, ventilation and energy saving system based on air cooled PV/T according to claim 3, wherein the integrated controller selects to execute the low temperature operation mode when the thermal switch in the integrated pump station barrel detects that the temperature in the barrel is below a preset temperature threshold:
the integrated controller controls the first three-way valve and the second three-way valve to be switched to be communicated with two air inlets except the open air inlet;
the integrated controller starts an outlet circulating fan and an inlet circulating fan, cold air in the cylinder body is driven by the outlet circulating fan to be sent into an air channel of the air cooling type PV/T module through a first three-way valve, and the air cooling type PV/T module absorbs solar energy to convert the cold air into hot air; after passing through the second third ventilation valve, the hot air is sent back into the cylinder body by the inlet circulating fan, and the hot air and the cylinder body fully exchange heat and then become cold air;
the photovoltaic module of the air-cooled PV/T module converts solar energy into electric energy, the electric energy is stored in a storage battery of the storage module, and the inverter converts the electric energy of the storage battery and then provides an outlet circulating fan, an inlet circulating fan, an integrated controller and a power pump of a pump station for use.
5. The anti-freezing ventilation energy-saving system of the integrated pump station based on the air cooling type PV/T, which is characterized in that a hot air box is arranged on a connecting air pipe section of an air channel of the air cooling type PV/T module and a second ventilation valve, an electric heater and a second heat-sensitive switch are arranged in the hot air box, the electric heater is electrically connected with an electric storage component through the second heat-sensitive switch, and the second heat-sensitive switch is electrically connected with an integrated controller;
the electric power storage component is provided with an illumination meter which is electrically connected with the integrated controller; in the low-temperature operation mode, if the illumination detected by the illumination meter is smaller than the set illumination threshold, the integrated controller turns on the electric heater of the hot air box through the second thermal switch.
6. An integrated pump station freeze protection, ventilation and energy saving system based on air cooled PV/T according to claim 3, wherein the integrated controller selects to execute the high temperature operation mode when the thermal switch in the integrated pump station barrel detects that the temperature in the barrel is not lower than the preset temperature threshold:
the outlet circulating fan and the inlet circulating fan of the integrated controller do not work; the photovoltaic module of the air-cooled PV/T module is only used for converting solar energy into electric energy and storing the electric energy into a storage battery of the storage module, and the inverter converts the electric energy of the storage battery and then supplies the electric energy to the integrated controller and a power pump of the pump station.
7. An integrated pump station freeze protection, ventilation and energy saving system based on air cooled PV/T according to claim 3, wherein the integrated controller selects to execute a ventilation operation mode when maintenance personnel are required to enter the barrel for maintenance:
the integrated controller controls the first three-way valve and the second three-way valve to be switched into communication with two air inlets except for the air inlet connected with the air channel of the air-cooled PV/T module; the integrated controller starts an outlet circulating fan and an inlet circulating fan, ambient air is sent into the cylinder body through the inlet circulating fan by the second third ventilation valve, and air in the cylinder body is pumped out and discharged through the first three-way valve by the outlet circulating fan;
the photovoltaic module of the air-cooled PV/T module is only used for converting solar energy into electric energy and storing the electric energy into a storage battery of the storage module, and the inverter converts the electric energy of the storage battery and then provides the electric energy for the outlet circulating fan, the inlet circulating fan and the integrated controller.
8. The air-cooled PV/T-based integrated pump station antifreeze ventilation energy saving system of claim 2, wherein the inverter is configured with an inverter circuit comprising a field effect transistor Q1, a field effect transistor Q2, a field effect transistor Q3, a field effect transistor Q4, a diode D1, a diode D2, a diode D3, a diode D4, and a transformer T1;
the positive electrode V+ of the storage battery is respectively connected with the source electrode of the field effect transistor Q1, the cathode of the diode D1, the source electrode of the field effect transistor Q3 and the cathode of the diode D3; the cathode V-of the storage battery is respectively connected with the drain electrode of the field effect transistor Q2, the anode of the diode D2, the drain electrode of the field effect transistor Q4 and the anode of the diode D4; the drain electrode of the Q1 is respectively connected with the source electrode of the field effect transistor Q2, the anode of the diode D1, the cathode of the diode D2 and the input pin 1 of the transformer T1; the drain electrode of the field effect transistor Q3 is respectively connected with the source electrode of the field effect transistor Q4, the anode of the diode D3, the cathode of the diode D4 and the input pin 2 of the transformer T1; the output pin 3 and the output pin 4 of the transformer T1 are ac output terminals.
9. The air-cooled PV/T-based integrated pump station anti-freezing and ventilating energy-saving system of claim 5, wherein the integrated controller comprises an operation processor, and is connected with an ambient temperature sensor and an in-barrel temperature sensor;
the environment temperature sensor is used for detecting outdoor environment temperature;
the barrel internal temperature sensor is used for detecting the barrel internal temperature of the barrel body of the integrated pump station;
the operation processor is used for optimizing and determining the heating power of the electric heater according to the outdoor environment temperature, the barrel temperature and the illuminance condition.
10. The air-cooled PV/T based integrated pump station antifreeze ventilation energy saving system of any one of claims 1 to 9, wherein the integrated controller comprises a network connector for connecting to a remote management terminal via the internet;
the integrated controller can interact data with the remote management terminal through the network connector or acquire upgrade software from the remote management terminal for updating.
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|---|---|---|---|
| CN202320029463.5U CN219364892U (en) | 2023-01-06 | 2023-01-06 | Air-cooled PV/T-based anti-freezing ventilation energy-saving system for integrated pump station |
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| CN202320029463.5U CN219364892U (en) | 2023-01-06 | 2023-01-06 | Air-cooled PV/T-based anti-freezing ventilation energy-saving system for integrated pump station |
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