CN221741436U - An integrated pump station antifreeze ventilation system based on renewable energy - Google Patents

Abstract

The utility model discloses an integrated pump station antifreeze ventilation system based on renewable energy, including: a pump station cylinder, a circulating fan A is provided at the air inlet, and a circulating fan B is provided at the air outlet; the circulating fan A is respectively connected to the air outlet A of the solar thermal collector and the air outlet B of the geothermal source heating device through a first valve, and the circulating fan B is respectively connected to the air inlet A of the solar thermal collector and the air inlet B of the geothermal source heating device through a second valve; a controller, the first valve, the second valve, the circulating fan A, the circulating fan B and the geothermal source heating device are all electrically connected to the controller. When the sunshine is sufficient, the solar thermal collector fully utilizes the solar energy to provide heat for the pump station cylinder, and when the sunshine is insufficient, the geothermal source heating device fully utilizes the shallow geothermal resources to provide heat for the pump station cylinder, thereby reducing energy consumption; during maintenance, the maintenance personnel can quickly and effectively discharge harmful gases before entering the pump station cylinder.

Description

An integrated pump station antifreeze ventilation system based on renewable energy

Technical Field

The utility model relates to the technical field of integrated pumping stations, and more specifically, to an integrated pumping station antifreeze ventilation system based on renewable energy.

Background Art

An integrated pump station is a device that combines a traditional pump room with a sewage lifting system, ventilation system, control system, and piping system to lift sewage, rainwater, and wastewater. Compared with traditional pump stations, integrated pump stations have the advantages of strong environmental adaptability, small footprint, and short construction period. The ambient temperature in northern regions is relatively low in winter, especially during the period of low community sewage discharge. Due to the low temperature in the pump station and low sewage fluidity, the sewage in the pump station will freeze, causing the pipeline to deform under frost heave loads. Therefore, valves may be damaged and leaks may occur, which will greatly affect the safe operation of the integrated pump station.

In existing integrated pump stations, the most common passive method to prevent freezing is to wrap a layer of insulation around the outside of the pump station. However, this method cannot transfer cold air, but only slows down the freezing process, resulting in poor antifreeze performance at low temperatures. Another method is to empty the pump station regularly to avoid freezing, but this affects the continuous operation of the pump station. In extreme weather conditions, active antifreeze methods such as electric heating are generally used. However, since the maximum heat energy required during the heating process is uncertain, running the electric heater at constant power may result in serious energy waste.

On the other hand, during the long-term operation of the underground integrated pump station, a large amount of toxic gases such as hydrogen sulfide and ammonia accumulate in the cylinder of the pump station. When maintenance personnel need to enter the cylinder of the pump station for maintenance, the presence of toxic gases poses a threat to their health. The current solution includes: opening the cylinder cover before maintenance personnel enter the cylinder of the pump station and allowing long-term natural ventilation; however, this method is time-consuming, and the high-density toxic gases are precipitated at the bottom of the cylinder of the pump station and are not easy to discharge. Another method is to add an axial flow fan to the cylinder cover to force the harmful gases in the cylinder of the pump station to be discharged, but this method consumes a lot of electricity. Therefore, it is necessary to propose an integrated pump station antifreeze ventilation system based on renewable energy, while ensuring the safety of maintenance personnel, taking effective measures to prevent the integrated pump station from freezing and heaving, so as to solve the problems existing in the prior art.

Utility Model Content

A series of simplified concepts are introduced in the utility model content section, which will be further described in detail in the detailed implementation section. The utility model content section of the utility model does not mean to attempt to define the key features and essential technical features of the technical solution claimed for protection, nor does it mean to attempt to determine the scope of protection of the technical solution claimed for protection.

In order to at least partially solve the above-mentioned problems, the utility model provides an integrated pump station antifreeze ventilation system based on renewable energy, including: a pump station cylinder, a circulating fan A is provided at the air inlet of the pump station, and a circulating fan B is provided at the air outlet; the circulating fan A is connected to the air outlet A of the solar energy collector and the air outlet B of the geothermal source heating device through a first valve, respectively, and the circulating fan B is connected to the air inlet A of the solar energy collector and the air inlet B of the geothermal source heating device through a second valve; a controller, the first valve, the second valve, the circulating fan A, the circulating fan B and the geothermal source heating device are all electrically connected to the controller.

Preferably, the first valve and the second valve are both four-way valves;

The first valve includes: a first connecting port, a second connecting port connected to the air outlet B of the geothermal source heating device, a third connecting port connected to the circulating fan A, and a fourth connecting port connected to the air outlet A of the solar thermal collector;

The second valve includes: a fifth connecting port connected to the circulation fan B, a sixth connecting port connected to the air inlet B of the geothermal source heating device, a seventh connecting port and an eighth connecting port connected to the air inlet A of the solar thermal collection device.

Preferably, a thermal switch electrically connected to the controller is provided in the cylinder of the pump station.

Preferably, the solar thermal collector, circulating fan A, pump station cylinder and circulating fan B form a solar heating loop.

Preferably, the geothermal source heating device comprises: a vertical buried pipe for heat transfer with the geothermal source, the water outlet A of the vertical buried pipe is connected to the water inlet B of the evaporator, and the water outlet B of the evaporator is connected to the water inlet A of the vertical buried pipe; the vertical buried pipe and the evaporator form a buried pipe heat exchange loop, and a circulating pump is provided on the buried pipe heat exchange loop;

Condenser, the air inlet B and the air outlet B are arranged on the condenser; the heat transfer medium outlet B of the evaporator is connected with the heat transfer medium inlet A of the condenser through the compressor, and the heat transfer medium outlet A of the condenser is connected with the heat transfer medium inlet B of the evaporator through the throttle valve; the evaporator, the compressor, the condenser and the throttle valve form a geothermal source heat pump loop, and the condenser, the circulating fan A, the pump station cylinder and the circulating fan B form a geothermal source heating loop.

Preferably, a first stop valve is provided at the connection between the compressor and the condenser, and a second stop valve and a third stop valve are provided at the water inlet B and the water outlet B of the evaporator, respectively.

Preferably, when the controller controls the third connecting port, the fourth connecting port, the fifth connecting port and the eighth connecting port to be opened and the first connecting port, the second connecting port, the sixth connecting port and the seventh connecting port to be closed, the geothermal source heating device does not work and the pump station cylinder is heated by the solar energy collector.

Preferably, when the controller controls the first connecting port, the second connecting port, the sixth connecting port and the seventh connecting port to be opened and the third connecting port, the fourth connecting port, the fifth connecting port and the eighth connecting port to be closed, the solar thermal collection device does not work and the geothermal source heating device is used to heat the pump station cylinder.

Preferably, the controller controls the first connecting port, the third connecting port, the fifth connecting port and the seventh connecting port to be opened, and when the second connecting port, the fourth connecting port, the sixth connecting port and the eighth connecting port are closed, the pump station cylinder is ventilated through the circulating fan A and the circulating fan B.

Preferably, the evaporator comprises: a first shell, the water inlet B and the water outlet B are arranged on the first shell; a first coil is arranged inside the first shell, and the heat transfer medium inlet B and the heat transfer medium outlet B are respectively arranged at both ends of the first coil;

The condenser comprises: a second shell, the air inlet B and the air outlet B are arranged on the second shell; a second coil is arranged inside the second shell, and the heat transfer medium inlet A and the heat transfer medium outlet A are respectively arranged at both ends of the second coil.

Compared with the prior art, the present invention has at least the following beneficial effects:

The integrated pump station antifreeze ventilation system based on renewable energy described in the utility model combines the use of a solar thermal collector with a geothermal source heating device. When there is sufficient sunshine, the pump station cylinder is combined with the solar thermal collector to fully utilize solar energy to provide heat for the pump station cylinder. When there is insufficient sunshine, the pump station cylinder is combined with the geothermal source heating device to fully utilize shallow geothermal resources to provide heat for the pump station cylinder, thereby keeping the pump station cylinder warm and reducing energy consumption. Moreover, before maintenance personnel enter the pump station cylinder, harmful gases in the pump station cylinder can be quickly and effectively discharged to ensure the safety of maintenance personnel.

The integrated pump station antifreeze ventilation system based on renewable energy described in the utility model, other advantages, objectives and features of the utility model will be reflected in part through the following description, and in part will be understood by technical personnel in this field through research and practice of the utility model.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

FIG1 is a schematic diagram of an integrated pump station antifreeze ventilation system based on renewable energy according to the present invention;

FIG2 is a schematic diagram of the integrated pump station antifreeze ventilation system based on renewable energy according to the present invention using a solar energy heat collector to heat the pump station cylinder;

FIG3 is a schematic diagram of the integrated pump station antifreeze ventilation system based on renewable energy according to the present invention using a geothermal source heating device to heat the pump station cylinder;

FIG4 is a schematic diagram of the integrated pump station antifreeze ventilation system based on renewable energy according to the present invention during ventilation;

FIG5 is a schematic diagram of a geothermal heat pump circuit in an integrated pump station antifreeze ventilation system based on renewable energy according to the present invention.

DETAILED DESCRIPTION

The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments so that those skilled in the art can implement the invention with reference to the description.

It should be understood that terms such as “having”, “including” and “comprising” used herein do not exclude the existence or addition of one or more other elements or combinations thereof.

As shown in Figure 1, the utility model provides an integrated pump station antifreeze ventilation system based on renewable energy, including: a pump station cylinder 1, a circulating fan A2 is provided at the air inlet of the pump station, and a circulating fan B3 is provided at the air outlet; the circulating fan A2 is connected to the air outlet A of the solar thermal collector 4 and the air outlet B544 of the geothermal source heating device 5 through the first valve 7, and the circulating fan B3 is connected to the air inlet A of the solar thermal collector 4 and the air inlet B543 of the geothermal source heating device 5 through the second valve 8; a controller 6, and the first valve 7, the second valve 8, the circulating fan A2, the circulating fan B3 and the geothermal source heating device 5 are all electrically connected to the controller 6.

The solar thermal collector 4 is a device that absorbs solar radiation and transfers the generated heat energy to a heat exchange medium. In the thermal utilization of solar energy, the key is to convert the solar radiation energy into heat energy. Since solar energy is relatively dispersed, it must be concentrated;

The utility model uses a trough solar collector, which is a light-heat conversion method that realizes the conversion of light energy into heat energy through focusing, reflection and absorption, so that the heat exchange medium reaches a certain temperature. The trough solar collector belongs to a medium-high temperature collector, which can make the heat exchange medium reach a relatively high temperature;

The trough type solar collector comprises: a heat collecting tube, and a first bracket for supporting the heat collecting tube. A trough type parabolic reflector is provided on one side of the heat collecting tube for focusing and reflecting sunlight so that the heat collecting tube can fully absorb light energy and convert the light energy into heat energy through the heat collecting tube to heat the gas inside the heat collecting tube. The heat collecting tube comprises a metal heat absorbing tube and a glass sleeve sleeved on the outside of the metal heat absorbing tube, and the gap between the two is evacuated. The air inlet A and the air outlet A are connected to the two ends of the heat collecting tube.

The geothermal source heating device 5 is a shallow geothermal energy resource exploited and utilized by the ground source heat pump technology; it is an economical and efficient energy-saving technology, and its operation does not produce pollution, combustion or emissions.

The above technical solution mainly solves the problem of antifreeze of integrated pumping station by combining renewable solar energy and geothermal energy resources;

When the light conditions are sufficient and the temperature in the pump station cylinder 1 is lower than the preset temperature, the geothermal source heating device 5 does not operate, but provides heat to the pump station cylinder 1 through the solar thermal collector 4; at this time, the controller 6 can be used to control the circulation fan A2 and the circulation fan B3 to open, and the first valve 7 and the second valve 8 can be controlled to make the air inlet A and the air outlet A of the solar thermal collector 4 connected to the pump station cylinder 1; then, under the power of the circulation fan A2 and the circulation fan B3, the low-temperature gas in the pump station cylinder 1 enters the heat collecting pipe from the air inlet A of the solar thermal collector 4, and the solar thermal collector 4 converts light energy into heat energy through focusing, reflection and absorption processes to increase the temperature of the low-temperature gas entering the heat collecting pipe, thereby heating the entering low-temperature gas, and then discharges high-temperature gas from the air outlet A of the solar thermal collector 4, and the high-temperature gas enters the pump station cylinder 1 again to provide the required heat for the pump station cylinder 1, and this cycle provides stable heat for the inside of the pump station cylinder 1;

When the light condition is insufficient and the temperature in the pump station cylinder 1 is lower than the preset temperature, the solar energy collector 4 does not operate, but provides heat to the pump station cylinder 1 through the geothermal source heating device 5; at this time, the low-temperature medium in the heat exchange pipeline of the geothermal source heating device 5 can exchange heat with shallow geothermal energy resources (such as soil), so that the temperature of the low-temperature medium increases and becomes a high-temperature medium. At the same time, the controller 6 controls the circulation fan A2 and the circulation fan B3 to open, and controls the first valve 7 and the second valve 8 to make the air inlet B543 and the air outlet B544 of the geothermal source heating device 5 connected to the pump station cylinder 1. Then, under the power of the circulation fan A2 and the circulation fan B3, the low-temperature gas in the pump station cylinder 1 enters the air inlet B543 of the geothermal source heating device 5, exchanges heat with the heat exchange pipeline, and then discharges the high-temperature gas from the air outlet B544 of the geothermal source heating device, and the high-temperature gas enters the pump station cylinder 1 again, and such a cycle provides the required heat for the pump station cylinder 1;

When maintenance is required, harmful gases are discharged before maintenance personnel enter the pump station cylinder 1. At this time, the circulating fans A2 and B3 are controlled to open by the controller 6, and the first valve 7 and the second valve 8 are controlled to connect the pump station cylinder 1 with the external environment. The circulating fan A2 supplies air into the pump station cylinder 1, and the circulating fan B3 exhausts air to the outside of the pump station cylinder 1, so as to achieve rapid ventilation, discharge harmful gases as soon as possible, save time, and ensure the safety of maintenance personnel.

Through the above technical scheme, the utility model combines the solar energy heat collecting device 4 with the geothermal source heating device 5. When the sunshine is sufficient, the pump station cylinder 1 is combined with the solar energy heat collecting device 4 to fully utilize the solar energy to provide heat for the pump station cylinder 1. When the sunshine is insufficient, the pump station cylinder 1 is combined with the geothermal source heating device 5 to fully utilize the shallow geothermal resources to provide heat for the pump station cylinder 1, to insulate the pump station cylinder 1 and reduce energy consumption; and, before the maintenance personnel enter the pump station cylinder 1, the harmful gases in the pump station cylinder 1 can be quickly and effectively discharged to ensure the safety of the maintenance personnel.

Furthermore, a thermal switch 9 electrically connected to the controller 6 is provided in the pump station cylinder 1 .

The thermal switch 9 can monitor the temperature inside the pump station cylinder 1 in real time. When the temperature is lower than the preset temperature, the thermal switch 9 is opened and controlled by the controller 6 to start the heating operation. When the temperature is higher than the preset temperature, the thermal switch 9 is opened and controlled by the controller 6 to stop the heating operation.

As shown in Figures 2 to 4, further, the first valve 7 and the second valve 8 are both four-way valves;

The first valve 7 includes: a first connecting port a, a second connecting port b connected to the air outlet B544 of the geothermal source heating device 5, a third connecting port c connected to the circulation fan A2, and a fourth connecting port d connected to the air outlet A of the solar thermal collector 4;

The second valve 8 includes: a fifth connecting port e connected to the circulation fan B3, a sixth connecting port f connected to the air inlet B543 of the geothermal source heating device 5, a seventh connecting port g and an eighth connecting port h connected to the air inlet A of the solar thermal collection device 4.

Furthermore, the solar energy heat collecting device 4, the circulating fan A2, the pump station cylinder 1 and the circulating fan B3 form a solar energy heating circuit.

As shown in Figure 2, when the lighting conditions are sufficient and the temperature inside the pump station cylinder 1 is lower than the preset temperature, the thermal switch 9 is turned on, the solar heating circuit is turned on, and the controller 6 controls the third connecting port c, the fourth connecting port d, the fifth connecting port e and the eighth connecting port h to open, and the first connecting port a, the second connecting port b, the sixth connecting port f and the seventh connecting port g to be closed. The geothermal source heating device 5 does not work, and the pump station cylinder 1 is heated by the solar thermal collection device 4.

At this time, the controller 6 controls the circulation fans A2 and B3 to operate, providing gas circulation power. The low-temperature gas in the pump station cylinder 1 enters the solar thermal collector 4 from the fifth connecting port e and the eighth connecting port h for heating, and then enters the pump station cylinder 1 again from the fourth connecting port d and the third connecting port c after becoming high-temperature gas, realizing circulation heating.

As shown in FIG. 1 and FIG. 5 , in one embodiment, the geothermal source heating device 5 includes: a vertical buried pipe 510 for heat transfer with the geothermal source, the water outlet A of the vertical buried pipe 510 is connected to the water inlet B523 of the evaporator 520, and the water outlet B524 of the evaporator 520 is connected to the water inlet A of the vertical buried pipe 510; the vertical buried pipe 510 and the evaporator 520 form a buried pipe heat exchange loop, and a circulating pump 530 is provided on the buried pipe heat exchange loop;

Condenser 540, the air inlet B543 and the air outlet B544 are arranged on the condenser 540; the heat transfer medium outlet B526 of the evaporator 520 is connected to the heat transfer medium inlet A545 of the condenser 540 through the compressor 550, and the heat transfer medium outlet A546 of the condenser 540 is connected to the heat transfer medium inlet B525 of the evaporator 520 through the throttle valve 560; the evaporator 520, the compressor 550, the condenser 540 and the throttle valve 560 form a geothermal source heat pump circuit, and the condenser 540, the circulating fan A2, the pump station cylinder 1 and the circulating fan B3 form a geothermal source heating circuit.

Furthermore, a first stop valve 570 is provided at the connection between the compressor 550 and the condenser 540, and a second stop valve 580 and a third stop valve 590 are provided at the water inlet B523 and the water outlet B524 of the evaporator 520, respectively.

As shown in Figure 3, when the lighting conditions are insufficient and the temperature inside the pump station cylinder 1 is lower than the preset temperature, the thermal switch 9 is turned on, the buried pipe heat exchange circuit, the geothermal source heat pump circuit and the geothermal source heating circuit are turned on, and the controller 6 controls the first connecting port a, the second connecting port b, the sixth connecting port f and the seventh connecting port g to open, and the third connecting port c, the fourth connecting port d, the fifth connecting port e and the eighth connecting port h to close. The solar energy collection device 4 does not work, and the pump station cylinder 1 is heated by the geothermal source heating device 5.

At this time, the controller 6 controls the circulation fans A2 and B3 to work, provide gas circulation power, and open all the stop valves on the underground pipe heat exchange loop, the geothermal source heat pump loop and the geothermal source heating loop, and the circulation pump 530 is turned on;

First, driven by the circulation pump 530, the low-temperature water on the buried pipe heat exchange loop enters the vertical buried pipe 510 that transfers heat with the geothermal source (such as soil). After heat exchange, the high-temperature water is discharged from the vertical buried pipe 510, and the high-temperature water enters the evaporator 520 from the water inlet B523 of the evaporator 520. The high-temperature water is transferred in the evaporator 520, so that the low-temperature and low-pressure heat transfer medium of the evaporator 520 in the geothermal source heat pump loop absorbs the heat of the high-temperature water, and the low-temperature and low-pressure heat transfer medium becomes a high-temperature and low-pressure heat transfer medium (gas), and after passing through the compressor 550, it becomes a high-temperature and high-pressure heat transfer medium (gas). The high-temperature and high-pressure heat transfer medium (gas) enters from the heat transfer medium inlet A545 of the condenser 540, and the high-temperature and high-pressure heat transfer medium The substance (gas) transfers heat in the condenser 540, and heats the gas entering from the air inlet 544 of the condenser 540 (the gas discharged from the pump station cylinder 1). Then, the low-temperature and high-pressure heat transfer medium (liquid) is discharged from the heat transfer medium outlet A546 of the condenser 540. The low-temperature and high-pressure heat transfer medium (liquid) passes through the throttle valve 560 and becomes a low-temperature and low-pressure heat transfer medium (liquid) and enters the evaporator 520 from the heat transfer medium inlet B525 of the evaporator 520. At the same time, after the low-temperature gas (the gas discharged from the pump station cylinder 1) entering from the air inlet B543 of the condenser 540 is heated, the high-temperature gas is discharged from the air outlet B544 of the condenser 540 into the pump station cylinder 1. This cycle provides heat for the pump station cylinder 1.

The heat transfer medium may be R290 (propane) refrigerant or others.

The above technical solution makes the temperature difference between the cold source and the hot source of the geothermal source heating device 5 very small, and the performance coefficient (COP) of the entire antifreeze ventilation system can reach above 4. The overall thermodynamic economic performance is higher than that of the insulation system that only consumes electricity, and has a significant energy-saving effect.

As shown in Figure 4, when maintenance is needed, the geothermal source heating device 5 and the solar thermal collection device 4 are not working, and the controller 6 controls the first connecting port a, the third connecting port c, the fifth connecting port e and the seventh connecting port g to be opened, and the second connecting port b, the fourth connecting port d, the sixth connecting port f and the eighth connecting port h to be closed, and the pump station cylinder 1 is ventilated through the circulating fan A2 and the circulating fan B3.

The circulating fan A2 supplies air into the pump station cylinder 1, and the circulating fan B3 exhausts air out of the pump station cylinder 1, thereby improving the efficiency of exhausting harmful gases from the pump station cylinder 1 and increasing the ventilation volume. In addition, the harmful gases in the dead corners at the bottom of the pump station cylinder 1 can be effectively discharged under a strong ventilation intensity, thereby ensuring the safety of maintenance personnel.

As shown in FIG5 , further, the evaporator 520 includes: a first shell 521, the water inlet B523 and the water outlet B524 are arranged on the first shell 521; a first coil 522 is arranged inside the first shell 521, and the heat transfer medium inlet B525 and the heat transfer medium outlet B526 are respectively arranged at both ends of the first coil 522;

The condenser 540 includes: a second shell 541, the air inlet B543 and the air outlet B544 are arranged on the second shell 541; a second coil 542 is arranged inside the second shell 541, and the heat transfer medium inlet A545 and the heat transfer medium outlet A546 are respectively arranged at both ends of the second coil 542.

The first coil 522, the compressor 550, the second coil 542 and the throttle valve 560 form a geothermal heat pump loop, and the heat transfer medium circulates in the geothermal heat pump loop;

The first shell 521 is used to communicate with the vertical buried pipe 510, so that the high-temperature water in the vertical buried pipe 510 can transfer heat with the first coil 522 in the first shell 521;

The second shell 541 is used to communicate with the pump station cylinder 1 so that the low-temperature gas in the pump station cylinder 1 can transfer heat with the second coil 542 in the second shell 541 .

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

In the present invention, unless otherwise clearly defined and specified, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Although the implementation scheme of the utility model has been disclosed as above, it is not limited to the applications listed in the specification and implementation modes. It can be fully applied to various fields suitable for the utility model. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the utility model is not limited to the specific details and the illustrations shown and described herein.

Claims (10)

1. An integrated pump station anti-freezing ventilation system based on renewable energy sources, which is characterized by comprising: a circulating fan A (2) is arranged at the air inlet of the pump station barrel (1), and a circulating fan B (3) is arranged at the air outlet; the circulating fan A (2) is respectively connected with the air outlet A of the solar heat collection device (4) and the air outlet B (544) of the geothermal heat supply device (5) through a first valve (7), and the circulating fan B (3) is respectively connected with the air inlet A of the solar heat collection device (4) and the air inlet B (543) of the geothermal heat supply device (5) through a second valve (8); the controller (6), first valve (7), second valve (8), circulating fan A (2), circulating fan B (3) and geothermal source heating device (5) all are connected with controller (6) electricity.

2. The renewable energy source-based integrated pump station anti-freezing ventilation system according to claim 1, wherein the first valve (7) and the second valve (8) are four-way valves;

The first valve (7) comprises: the solar heat collector comprises a first communication port (a), a second communication port (B) connected with an air outlet B (544) of a geothermal source heat supply device (5), a third communication port (c) connected with a circulating fan A (2) and a fourth communication port (d) connected with an air outlet A of a solar heat collector (4);

The second valve (8) comprises: a fifth communication port (e) connected with the circulating fan B (3), a sixth communication port (f) connected with the air inlet B (543) of the geothermal source heat supply device (5), a seventh communication port (g) and an eighth communication port (h) connected with the air inlet A of the solar heat collection device (4).

3. The integrated pump station anti-freezing ventilation system based on renewable energy sources according to claim 1, wherein a heat-sensitive switch (9) electrically connected with the controller (6) is arranged in the pump station barrel (1).

4. The renewable energy-based integrated pump station anti-freezing ventilation system according to claim 2, wherein the solar heat collection device (4), the circulating fan a (2), the pump station cylinder (1) and the circulating fan B (3) form a solar heat supply loop.

5. The renewable energy based integrated pump station freeze protection and ventilation system according to claim 2, characterized in that the geothermal heating (5) comprises: the vertical buried pipe (510) is in heat transfer with the geothermal source, a water outlet A of the vertical buried pipe (510) is connected with a water inlet B (523) of the evaporator (520), and a water outlet B (524) of the evaporator (520) is connected with the water inlet A of the vertical buried pipe (510); the vertical buried pipe (510) and the evaporator (520) form a buried pipe heat exchange loop, and a circulating pump (530) is arranged on the buried pipe heat exchange loop;

A condenser (540), wherein the air inlet B (543) and the air outlet B (544) are arranged on the condenser (540); the heat transfer medium outlet B (526) of the evaporator (520) is connected with the heat transfer medium inlet A (545) of the condenser (540) through the compressor (550), and the heat transfer medium outlet A (546) of the condenser (540) is connected with the heat transfer medium inlet B (525) of the evaporator (520) through the throttle valve (560); the evaporator (520), the compressor (550), the condenser (540) and the throttle valve (560) form a geothermal heat source heat pump loop, and the condenser (540), the circulating fan A (2), the pump station barrel (1) and the circulating fan B (3) form a geothermal heat source heat supply loop.

6. The integrated pump station anti-freezing and ventilating system based on renewable energy sources according to claim 5, wherein a first stop valve (570) is arranged at the joint of the compressor (550) and the condenser (540), and a second stop valve (580) and a third stop valve (590) are respectively arranged at the water inlet B (523) and the water outlet B (524) of the evaporator (520).

7. The integrated pump station anti-freezing ventilation system based on renewable energy sources according to claim 2, wherein the controller (6) controls the third communication port (c), the fourth communication port (d), the fifth communication port (e) and the eighth communication port (h) to be opened, and when the first communication port (a), the second communication port (b), the sixth communication port (f) and the seventh communication port (g) are closed, the geothermal source heating device (5) does not work, and heat is supplied to the pump station cylinder (1) through the solar heat collecting device (4).

8. The integrated pump station anti-freezing ventilation system based on renewable energy sources according to claim 2, wherein the controller (6) controls the first communication port (a), the second communication port (b), the sixth communication port (f) and the seventh communication port (g) to be opened, and the solar heat collection device (4) is not operated when the third communication port (c), the fourth communication port (d), the fifth communication port (e) and the eighth communication port (h) are closed, and supplies heat to the pump station cylinder (1) through the geothermal source heat supply device (5).

9. The integrated pump station anti-freezing and ventilating system based on renewable energy sources according to claim 2, wherein the controller (6) controls the first communication port (a), the third communication port (c), the fifth communication port (e) and the seventh communication port (g) to be opened, and when the second communication port (B), the fourth communication port (d), the sixth communication port (f) and the eighth communication port (h) are closed, the pump station cylinder (1) is ventilated through the circulating fan a (2) and the circulating fan B (3).

10. The renewable energy based integrated pump station antifreeze venting system of claim 5, wherein said evaporator (520) comprises: a first housing (521), the water inlet B (523) and the water outlet B (524) being provided on the first housing (521); a first coil pipe (522) is arranged in the first shell (521), and a heat transfer medium inlet B (525) and a heat transfer medium outlet B (526) are respectively arranged at two ends of the first coil pipe (522);

The condenser (540) includes: a second housing (541), the air inlet B (543) and the air outlet B (544) being provided on the second housing (541); a second coil (542) is arranged in the second shell (541), and the heat transfer medium inlet A (545) and the heat transfer medium outlet A (546) are respectively arranged at two ends of the second coil (542).