Cross-seasonal cold supply system for urban gas valve station
By utilizing the gas gate station's cross-seasonal cooling system, underground heat exchangers and photovoltaic systems have been employed to ensure the stable operation of urban gas gate station equipment and provide cooling for buildings. This has solved the problems of equipment frosting and icing, achieving a highly efficient, energy-saving, and environmentally friendly cooling effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING GAS GRP
- Filing Date
- 2025-07-30
- Publication Date
- 2026-05-15
AI Technical Summary
Urban gas gate station equipment is prone to freezing damage in autumn, winter and spring due to frost and ice formation caused by temperature drops. Furthermore, traditional electric heating and gas combustion heating methods pose safety hazards and are costly, and cannot effectively utilize the cold energy of the gate station.
The system employs a gas-fired gate station for cross-seasonal cooling, which includes heating and cooling devices, a gas system, a cold storage system, a photovoltaic system, and a control system. It stores energy through buried heat exchangers, uses photovoltaic panels and cooling fluids to control gas temperature and provide building cooling, and optimizes energy transfer and utilization by combining heat exchangers.
It achieves green refrigeration with zero energy consumption and zero carbon emissions, solves the problems of frosting and icing in gas equipment, improves the adaptability and heat exchange efficiency of the cold storage system, and ensures the stability and safety of the gas system.
Smart Images
Figure CN224246483U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a cooling system, and more particularly to a cross-seasonal cooling system for urban gas gate stations. Background Technology
[0002] City gas gate stations have large gas flow rates and significant pressure drops, resulting in lower gas temperatures passing through various equipment and creating substantial available cooling capacity. Particularly during autumn, winter, and spring, this cooling can cause severe frost and ice buildup on the gas flow equipment, leading to frost damage. Therefore, the utilization of cooling energy at gate stations, especially in winter, has become crucial to their normal operation.
[0003] In cities, gas gate stations typically occupy a small area. If a dedicated area is set up for cold storage, the cost would be extremely high. Large-scale electrical energy storage is not only costly but also poses certain safety hazards. Furthermore, gas gate stations transport flammable, explosive, and easily leaked gas. Operating them using traditional electric heating or gas combustion heating methods is unsafe and could easily lead to major safety accidents. Utility Model Content
[0004] To solve the above-mentioned technical problems, this utility model provides a cross-seasonal cooling system for urban gas gate stations that is low-carbon and energy-saving, has high energy storage efficiency, and has good anti-freezing effect on gas gate stations.
[0005] This utility model discloses a cross-seasonal cooling system for urban gas gate stations, comprising a heating and cooling device, a gas system, a cold storage system, a photovoltaic system, and a control system;
[0006] The gas system includes multiple gas pipes for gas supply; the cold storage system includes a first heat exchanger, a buried heat exchanger, and a first circulating pump. Each gas pipe is connected to a first heat exchanger. The fluid inlet of the first heat exchanger is connected to the fluid outlet of the buried heat exchanger via a first pipeline, and a first cold flow valve is installed on the first pipeline. The fluid outlet of the first heat exchanger is connected to the fluid inlet of the buried heat exchanger via a second pipeline, and a second cold flow valve is installed on the second pipeline. The first circulating pump is installed on the first pipeline. A first temperature sensor and a second temperature sensor are respectively installed at the fluid inlet and outlet of the buried heat exchanger.
[0007] The inlet of the heating and cooling device is connected to the fluid outlet of the buried heat exchanger via a third pipeline, and a third cold flow valve is installed on the third pipeline. The outlet of the heating and cooling device is connected to the fluid inlet of the buried heat exchanger via a fourth pipeline, and a fourth cold flow valve is installed on the fourth pipeline. A third temperature sensor and a fourth temperature sensor are respectively installed at the inlet and outlet of the heating and cooling device.
[0008] The photovoltaic system includes a photovoltaic panel, which is electrically connected to a circulating pump, a heating and cooling device, and a control system via cables.
[0009] The first cold flow valve, the second cold flow valve, the third cold flow valve, the fourth cold flow valve, and the circulating pump are all connected to the control system signal.
[0010] The control system exchanges heat with the gas pipe and stores cold by controlling the circulating pump, the first cold flow valve and the second cold flow valve. It also supplies cooling to the heating and cooling device and stores heat by controlling the circulating pump, the third cold flow valve and the fourth cold flow valve.
[0011] This utility model discloses a cross-seasonal cooling system for urban gas gate stations, wherein the cooling system further includes a second heat exchanger, and each gas pipe is equipped with a second heat exchanger; the fluid inlet of the second heat exchanger is connected to the fluid outlet of the first heat exchanger through a pipeline, and the fluid outlet of the second heat exchanger is connected to the fluid inlet of the buried heat exchanger through a pipeline.
[0012] This utility model discloses a cross-seasonal cooling system for urban gas gate stations, wherein the gas system further includes a gate station pressure regulator, and each gas pipe is equipped with a gate station pressure regulator, which is located between a first heat exchanger and a second heat exchanger.
[0013] This utility model discloses a cross-seasonal cooling system for urban gas gate stations, wherein the photovoltaic system further includes an energy storage box, which is connected to the photovoltaic power generation panel, the circulating pump, the heating and cooling device and the control system via cables.
[0014] This utility model discloses a cross-seasonal cooling system for urban gas gate stations, wherein the underground heat exchanger is buried in the soil.
[0015] This utility model discloses a cross-seasonal cooling system for urban gas gate stations, wherein the buried heat exchanger and the pipeline connected to the buried heat exchanger are filled with a cooling fluid.
[0016] The difference between this utility model and the prior art is that this utility model makes comprehensive use of the underground soil of the gas gate station. The cold storage system stores energy through the buried heat exchanger 22. In winter, it provides heat exchange and cooling for the gas system and provides cooling and heat storage for office and residential buildings in summer. The control system monitors and regulates other systems in real time to ensure the orderly operation of the cross-seasonal cooling system.
[0017] This utility model provides a cross-seasonal cooling system for urban gas gate stations, which has at least the following beneficial effects:
[0018] (1) By combining photovoltaic system, cold storage system and gas system, green cooling can be provided to surrounding buildings, and a gas gate station with zero energy consumption and zero carbon emission can be built. The system does not need to consume gas or electricity for cooling, effectively saving energy. At the same time, it also solves the problem of frost and ice formation caused by cooling of gas flow equipment, and has great promotion value.
[0019] (2) Through two heat exchangers, on the one hand, the energy transfer and utilization can be controlled more precisely; on the other hand, heat transfer optimization is carried out in different pressure zones, so that the cold storage system can operate efficiently in a wider temperature range of the gas system, effectively improving the adaptability and heat exchange efficiency of the cold storage system.
[0020] The present invention will be further described below with reference to the accompanying drawings. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the structure of a cross-seasonal cooling system for urban gas gate stations according to this utility model.
[0022] Figure label:
[0023] 01-Gas system; 11-Gas pipe; 12-Gate station pressure regulator; 02-Cold storage system; 21-First heat exchanger; 211-First pipeline; 212-Second pipeline; 22-Buried heat exchanger; 221-Third pipeline; 222-Fourth pipeline; 23-Circulating pump; 24-First cold flow valve; 25-Second cold flow valve; 26-Third cold flow valve; 27-Fourth cold flow valve; 28-Second heat exchanger; 29-First temperature sensor; 30-Second temperature sensor; 03-Control system; 04-Photovoltaic system; 41-Photovoltaic power generation panel; 42-Photovoltaic heater; 43-Energy storage box; 05-Heating and cooling device; 51-Third temperature sensor; 52-Fourth temperature sensor. Detailed Implementation
[0024] like Figure 1 As shown, this utility model discloses a cross-seasonal cooling system for urban gas gate stations, including a heating and cooling device 05, a gas system 01, a cold storage system 02, a photovoltaic system 04, and a control system 03.
[0025] The gas system 01 includes multiple gas pipes 11 for gas supply; the cold storage system 02 includes a first heat exchanger 21, a buried heat exchanger 22, and a circulating pump 23. Each gas pipe 11 is connected to a first heat exchanger 21. The fluid inlet of the first heat exchanger 21 is connected to the fluid outlet of the buried heat exchanger 22 through a first pipeline 211, and a first cold flow valve 24 is installed on the first pipeline 211. The fluid outlet of the first heat exchanger 21 is connected to the fluid inlet of the buried heat exchanger 22 through a second pipeline 212, and a second cold flow valve 25 is installed on the second pipeline 212. The first circulating pump 23 is installed on the first pipeline 211. A first temperature sensor 29 and a second temperature sensor 30 are respectively installed at the fluid inlet and outlet of the buried heat exchanger 22.
[0026] The inlet of the heating and cooling device 05 is connected to the fluid outlet of the buried heat exchanger 22 through a third pipe 221, and a third cold flow valve 26 is installed on the third pipe 221. The outlet of the heating and cooling device 05 is connected to the fluid inlet of the buried heat exchanger 22 through a fourth pipe 222, and a fourth cold flow valve 27 is installed on the fourth pipe 222. A third temperature sensor 51 and a fourth temperature sensor 52 are respectively installed at the inlet and outlet of the heating and cooling device 05.
[0027] The photovoltaic system 04 includes a photovoltaic panel 41, which is electrically connected to the circulating pump 23, the heating and cooling device 05 and the control system 03 via cables.
[0028] The first cold flow valve 24, the second cold flow valve 25, the third cold flow valve 26, the fourth cold flow valve 27, and the circulating pump 23 are all connected to the control system 03 signal.
[0029] The control system 03 controls the circulating pump 23, the first cold flow valve 24 and the second cold flow valve 25 to exchange heat on the gas pipe 11 and store cold at the same time. It controls the circulating pump 23, the third cold flow valve 26 and the fourth cold flow valve 27 to supply cooling to the heating and cooling device 05 and store heat at the same time.
[0030] This utility model's cross-seasonal cooling system aims to efficiently utilize energy, achieve green cooling and heating for surrounding buildings, and solve related equipment problems at gas gate stations. Through the coordinated operation of the gas system 01, the cold storage system 02, and the photovoltaic system 04, it has significant energy-saving and environmental benefits.
[0031] The heating and cooling unit 05 is a heating and cooling air conditioning system, mainly used for cooling and heating in offices, residences, and other facilities. The gas system 01 is a natural gas system, which supplies gas to urban residents. The gas system 01 contains many gas pipes 11 for gas supply. Typically, a main pipeline branches into numerous branch pipelines to supply gas to different areas. The number of gas pipes 11 is determined according to specific needs.
[0032] Because city gas gate stations have large gas flow rates and significant pressure drops, the gas expands and absorbs heat during the pressure drop, resulting in a significant temperature decrease. Therefore, the gas temperature at the gate station is relatively low. Additionally, the gas may contain a small amount of free moisture. In autumn, winter, and spring, once the gas temperature drops below the dew point, the gas flow equipment at the gate station will experience severe frost and ice buildup, potentially leading to freezing damage.
[0033] The cold storage system 02 can exchange heat with the gas to restore its temperature, ensuring that the gas temperature is always above the dew point. The first heat exchanger 21 is connected to the high-pressure zone of the gas pipe 11, performing initial heat exchange to restore the gas temperature, keeping it within the target range (above the dew point). This prevents frost or ice formation on the gas flow equipment, thus ensuring the stability of the gas supply from the gas system 01. To completely prevent freezing expansion of the gas flow equipment, a first heat exchanger 21 is installed on each gas pipe 11 to ensure normal gas supply.
[0034] The underground heat exchanger 22 is buried in the soil.
[0035] The buried heat exchanger 22, the first heat exchanger 21, and the circulating pump 23 are connected by pipelines to form a heat exchange path for reheating the gas pipe 11. The buried heat exchanger 22, the circulating pump 23, and the heating and cooling air conditioning system are also connected by pipelines to form a cooling channel for office and residential buildings. The buried heat exchanger 22 is located in the soil below the gas station, which not only comprehensively utilizes the massive amount of cold energy from the gas station and the soil below it to achieve cross-seasonal cold energy storage, but also has a low-temperature flow channel above the soil for the gas station's pipelines and equipment, effectively adding an insulation cover to the energy storage soil layer and significantly improving cold storage efficiency. Furthermore, multiple buried heat exchangers 22 can be installed according to the needs of the gas system 01, enhancing the heat transfer coefficient and cold storage capacity of the cold storage system 02.
[0036] The circulating pump 23 is connected to the first pipe 211 to provide power to the cold storage system 02. On the one hand, it drives the cooling fluid to flow in the pipe to complete the heat exchange operation with the gas pipe 11; on the other hand, the left end of the third pipe 221 is connected to the first pipe 221 and is located to the left of the circulating pump 23, and provides cooling for the air conditioning system through the circulating pump 23.
[0037] The buried heat exchanger 22 and the pipes connected to it are both filled with a cooling fluid. The preferred cooling fluid is an ethylene glycol solution, which has excellent low-temperature performance, relatively controllable corrosivity, and strong thermal stability and compatibility. Sodium chloride solution can also be used to ensure stable circulation in the pipes and extend the service life of the pipes.
[0038] During heat exchange in spring, autumn, and winter, control system 03 starts circulating pump 23 and simultaneously opens the first cold flow valve 24 and the second cold flow valve 25. The cooling fluid absorbs heat stored in the soil in the buried heat exchanger 22 (this heat is carried underground after heat exchange between the cooling fluid and the gas, which will be described in detail later). At this time, the temperature of the cooling fluid is 5℃~40℃. Under the action of circulating pump 23, the cooling fluid flows from the buried heat exchanger 22 into the first heat exchanger 21. The first heat exchanger 21 then heats up to exchange heat with the gas in the gas pipe 11 to restore its temperature. If the gas temperature is below the dew point, it will gradually rise above the dew point, while the cooling fluid gradually decreases with the heat exchange and flows back into the buried heat exchanger 22, transferring the cold energy to the soil for storage. At this time, the temperature of the cooling fluid is -5℃~-40℃ for summer cooling. After the heat exchange is completed, control system 03 closes the relevant equipment and valves.
[0039] During summer cooling, the control system 03 starts the circulating pump 23 and simultaneously opens the third cold flow valve 26 and the fourth cold flow valve 27. The cooling fluid absorbs the cold energy stored in the soil in the buried heat exchanger 22. Under the action of the circulating pump 23, the cooling fluid flows from the buried heat exchanger 22 into the air conditioning system to provide cooling for office and residential buildings. During the circulating cooling process, the temperature of the cooling fluid gradually increases, and then it flows back to the buried heat exchanger 22 to transfer the heat energy to the soil for storage, so that it can be used to exchange heat and restore the temperature of the gas system 01 after seasonal changes. After the cooling is completed, the control system 03 closes the relevant equipment and valves.
[0040] It should be noted that an insulation layer (such as rigid polyurethane foam, extruded polystyrene board, etc.) is installed at the soil boundary under the gas gate station to further enhance the energy storage effect. Moreover, the volume of the buried heat exchanger 22 is large enough to store a large amount of cooling fluid, which is sufficient to meet the heat exchange and return of the gas pipe 11 and the cooling energy supply for office and residential buildings.
[0041] The photovoltaic system 04 is mainly used to convert light energy into electrical energy, and the photovoltaic power generation panel 41 is used to generate electricity for the control system 03, the circulating pump 23 and the air conditioning system.
[0042] The second temperature sensor 30 is used to monitor the temperature at the fluid outlet of the buried heat exchanger 22 in real time, which is the initial heat exchange temperature; the first temperature sensor 29 is used to monitor the temperature at the fluid inlet of the buried heat exchanger 22 in real time, which is the cold storage temperature. The temperature sensors transmit the temperature signals to the control system 03 in real time. The control system 03 determines the degree of heat exchange of the gas system and the storage temperature of cold energy based on the received signals.
[0043] The third temperature sensor 51 and the fourth temperature sensor 52 monitor the inlet and outlet temperatures of the air conditioner in real time. The control system 03 determines the cooling level of the air conditioner and the heat storage temperature of the cold storage system based on the temperature signals.
[0044] It should be further explained that, in addition to the temperature sensors mentioned above, the gas system 01 and the cold storage system 02 in this cross-seasonal cooling system are also equipped with multiple temperature and pressure sensors. The photovoltaic system 04 is equipped with corresponding ammeters and voltmeters. The pipelines are equipped with regulating butterfly valves for adjusting the flow of cooling fluid or fire-fighting water. The sensors monitor the corresponding equipment or pipelines in real time and transmit the monitoring signals to the control system 03. The control system 03 adjusts the cold storage system 02 according to the received signals.
[0045] This cross-seasonal cooling system, through the cooperation of photovoltaic system 04, cold storage system 02 and gas system 01, provides green cooling for surrounding buildings and constructs a gas gate station with zero energy consumption and zero carbon emissions. The system does not require the consumption of gas or electricity for cooling, effectively saving energy. At the same time, it also solves the problem of frost and ice formation caused by cooling in gas flow equipment, and has great promotional value.
[0046] like Figure 1 As shown, the cold storage system 02 also includes a second heat exchanger 28, and each gas pipe 11 is equipped with a second heat exchanger 28; the fluid inlet of the second heat exchanger 28 is connected to the fluid outlet of the first heat exchanger 21 through a pipeline, and the fluid outlet of the second heat exchanger 28 is connected to the fluid inlet of the buried heat exchanger 22 through a pipeline.
[0047] To enhance the heat exchange intensity of the cold storage system 02, a second heat exchanger 28 is installed on each gas pipe 11. The first heat exchanger 21, the second heat exchanger 28, and the buried heat exchanger 22 are connected in series. During heat exchange, the cooling fluid first flows into the first heat exchanger 21 to perform initial heat exchange and temperature recovery on the gas pipe 11. Then, the cooling fluid flows into the second heat exchanger 28 to perform secondary heat exchange and temperature recovery on the gas pipe 11. The gas pipe 11 is circulated and heated and warmed through the two heat exchangers, which further ensures that the gas flow equipment will not frost, freeze, or freeze, and at the same time enhances the energy storage intensity of the cold storage system 02.
[0048] It should be further explained that, in addition to the inlet and outlet of the cooling fluid, the first heat exchanger 21 is also provided with an air inlet and an air outlet. After the first heat exchanger 21 is connected to the gas pipe 11, the gas flows into the first heat exchanger 21 through the air inlet to exchange heat with the cooling fluid, and then flows out from the air outlet into the downstream gas pipe.
[0049] In addition, the number of heat exchangers can be adjusted according to the heat exchange requirements of the gas system 01 and the energy storage requirements of the cold storage system 02, and the connection method of the heat exchangers can also be connected in series or in parallel according to the requirements.
[0050] like Figure 1As shown, the gas system 01 also includes a gate station pressure regulator 12. Each gas pipe 11 is equipped with a gate station pressure regulator 12, which is located between the first heat exchanger 21 and the second heat exchanger 28.
[0051] The gate station pressure regulator 12 is mainly used to regulate the pressure of the gas pipe 11. The gas flow rate of the city gas gate station is large, and the initial pressure of the gas pipe 11 is relatively high (generally above 4MPa), which cannot be used directly. In addition, the gas demand of different areas is different. Therefore, it is necessary to install gate station pressure regulators 12 on the gas pipes 11 leading to different areas to reduce the gas pressure to the required pressure range (generally 0.1MPa to 2MPa) before completing the gas transmission.
[0052] In the gas pressure regulation process, heat exchangers play a crucial role. The first heat exchanger 21 is located in the high-pressure zone upstream of the gate station pressure regulator 12 (left side of the diagram), responsible for the initial heat exchange and temperature recovery of the high-pressure zone of the gas pipe 11. The second heat exchanger 28 is installed in the low-pressure zone downstream of the gate station pressure regulator 12 (right side of the diagram). After the gas pressure is reduced by the gate station pressure regulator 12, it undergoes secondary heat exchange and temperature recovery of the low-pressure zone of the gas pipe 11 through the second heat exchanger 28. Through the coordinated operation of the two heat exchangers in different pressure zones, on the one hand, the energy transfer and utilization can be controlled more precisely; on the other hand, heat transfer optimization in different pressure zones enables the cold storage system 02 to operate efficiently within a wider temperature range of the gas system 01, effectively improving the adaptability and heat exchange efficiency of the cold storage system 02.
[0053] like Figure 1 As shown, the photovoltaic system 04 also includes an energy storage box 43, which is connected to the photovoltaic power generation panel 41, the circulating pump 23, the heating and cooling device 05 and the control system 03 via cables.
[0054] The energy storage box 43 is mainly used to manage and store the electrical energy generated by the photovoltaic power generation panel 41. The circulating pump 23, the heating and cooling device 05, and the control system 03 are all powered by the energy storage box 43. The energy storage box 43 is equipped with an inverter, a battery pack, a cooling system, a voltage regulator, and other devices. The battery pack is responsible for storing electrical energy; the inverter converts AC and DC power according to the power demand; the voltage regulator is used to adjust the power voltage; and the cooling system ensures that the energy storage box 43 is always at the operating temperature and will not cause safety accidents due to excessive temperature, thus ensuring the safe and stable operation of the energy storage box 43 and realizing the effective utilization of solar energy.
[0055] An application method for a city gas gate station cross-seasonal cooling system includes the following usage states:
[0056] (1) In spring, autumn and winter, the control system 03 starts the circulation pump 23 and opens the first cold flow valve 24 and the second cold flow valve 25. After the cooling fluid absorbs the heat in the soil in the buried heat exchanger 22, it flows into the first heat exchanger 21 and the second heat exchanger 28 in sequence, and transfers the heat to the gas pipe 11 for two heat exchanges. After absorbing the coldness of the gas pipe 11, the cooling fluid flows back to the buried heat exchanger 22 and stores the coldness in the soil.
[0057] (2) In summer, the control system 03 starts the circulating pump 23 and simultaneously opens the third cold flow valve 26 and the fourth cold flow valve 27. After the cooling fluid absorbs the coldness in the soil in the buried heat exchanger 22, it is transported to the heating and cooling device 05 for cooling. After heat exchange, the heat is brought back to the buried heat exchanger 22 and stored in the soil for use after seasonal changes.
[0058] It should be noted that the terms "center", "upper", "lower", "front", "rear", "left", "right", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0059] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0060] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.
Claims
1. A city gas gate station cross-seasonal cooling system, comprising a heating and cooling unit, characterized in that: It also includes gas systems, cold storage systems, photovoltaic systems, and control systems; The gas system includes multiple gas pipes for gas supply; the cold storage system includes a first heat exchanger, a buried heat exchanger, and a first circulating pump. Each gas pipe is connected to a first heat exchanger. The fluid inlet of the first heat exchanger is connected to the fluid outlet of the buried heat exchanger via a first pipeline, and a first cold flow valve is installed on the first pipeline. The fluid outlet of the first heat exchanger is connected to the fluid inlet of the buried heat exchanger via a second pipeline, and a second cold flow valve is installed on the second pipeline. The first circulating pump is installed on the first pipeline. A first temperature sensor and a second temperature sensor are respectively installed at the fluid inlet and outlet of the buried heat exchanger. The inlet of the heating and cooling device is connected to the fluid outlet of the buried heat exchanger via a third pipeline, and a third cold flow valve is installed on the third pipeline. The outlet of the heating and cooling device is connected to the fluid inlet of the buried heat exchanger via a fourth pipeline, and a fourth cold flow valve is installed on the fourth pipeline. A third temperature sensor and a fourth temperature sensor are respectively installed at the inlet and outlet of the heating and cooling device. The photovoltaic system includes a photovoltaic panel, which is electrically connected to a circulating pump, a heating and cooling device, and a control system via cables. The first cold flow valve, the second cold flow valve, the third cold flow valve, the fourth cold flow valve, and the circulating pump are all connected to the control system signal. The control system exchanges heat with the gas pipe and stores cold by controlling the circulating pump, the first cold flow valve and the second cold flow valve. It also supplies cooling to the heating and cooling device and stores heat by controlling the circulating pump, the third cold flow valve and the fourth cold flow valve.
2. The urban gas gate station cross-seasonal cooling system according to claim 1, characterized in that: The cold storage system also includes a second heat exchanger, and each of the gas pipes is equipped with a second heat exchanger; the fluid inlet of the second heat exchanger is connected to the fluid outlet of the first heat exchanger through a pipeline, and the fluid outlet of the second heat exchanger is connected to the fluid inlet of the buried heat exchanger through a pipeline.
3. A cross-seasonal cooling system for urban gas gate stations according to claim 2, characterized in that: The gas system also includes a gate station pressure regulator, and each gas pipe is equipped with a gate station pressure regulator, which is located between the first heat exchanger and the second heat exchanger.
4. A cross-seasonal cooling system for urban gas gate stations according to claim 3, characterized in that: The photovoltaic system also includes an energy storage box, which is connected to the photovoltaic power generation panel, the circulating pump, the heating and cooling device and the control system via cables.
5. A cross-seasonal cooling system for urban gas gate stations according to claim 4, characterized in that: The buried heat exchanger is installed in the soil.
6. A cross-seasonal cooling system for urban gas gate stations according to claim 5, characterized in that: The buried heat exchanger and the pipes connected to it are both filled with a cooling fluid.