Heat storage town heating system of Guizhou group

Abstract

The invention discloses a Guizhou group heat storage town heating system, which comprises a heat storage device, a heating device and a heating device, the heat storage device comprises a hot well and a cold well which are arranged on a Guizhou group layer, and the hot well and the cold well form a loop; a first heat supply medium of the heat supply device exchanges heat with water flowing from the cold well to the hot well; and a second heat supply medium of the heat supply network device exchanges heat with water flowing from the hot well to the cold well, and the distance from the heat supply network device to the heat storage device is smaller than the distance from the heat delivery device to the heat storage device. According to the heat storage town heating system for the Guizhou group, heat is efficiently and stably supplied to heat consumers, meanwhile, cold and hot water of the Guizhou group layer is effectively utilized and circulated, and energy consumption and pollutant emission are reduced. Meanwhile, the heat storage device is closer to the heat supply network device than the heat supply device, the distance between the heat supply network device and the heat storage device is shortened, heat loss in the transmission process is reduced, the heat supply network device can more directly and efficiently utilize heat energy in the hot well, and the heating efficiency is improved.

Description

Technical Field

[0001] The invention relates to the field of underground heat storage, and in particular to a Guantao group heat storage town heating system. Background Art

[0002] With the rapid development of urbanization, the demand for urban heating is increasing. Traditional heating methods such as coal and gas have problems such as severe environmental pollution and high energy consumption. Therefore, seeking an environmentally friendly and efficient heating method has become an important direction for the development of urban heating technology. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a Guantao group heat storage town heating system, which reduces heat loss during transmission, so that the heat network device can more directly and efficiently utilize the heat energy in the heat well, thereby improving the heating efficiency.

[0004] According to an embodiment of the present invention, the Guantao group heat storage urban heating system includes: a heat storage device, the heat storage device includes a hot well and a cold well arranged in the Guantao group layer, the hot well and the cold well form a loop; a heat delivery device, a first heat supply medium of the heat delivery device exchanges heat with water flowing from the cold well to the hot well; a heat network device, a second heat supply medium of the heat network device exchanges heat with water flowing from the hot well to the cold well, and the distance from the heat network device to the heat storage device is less than the distance from the heat delivery device to the heat storage device.

[0005] According to the Guantao group heat storage urban heating system of the embodiment of the present invention, the heat storage device is arranged in the Guantao group layer and includes a hot well and a cold well, the hot well and the cold well form a loop, the first heat supply medium of the heat delivery device exchanges heat with the water flowing from the cold well to the hot well, and the second heat supply medium of the heat network device exchanges heat with the water flowing from the hot well to the cold well, so as to realize efficient and stable heating for heat users, and at the same time, the cold and hot water of the Guantao group layer are effectively utilized and circulated, so as to realize efficient utilization of energy, reduce energy consumption and pollutant emissions, comply with the sustainable development concept of energy conservation and emission reduction, and play a positive role in protecting the environment and improving air quality. At the same time, the distance from the heat network device to the heat storage device is less than the distance from the heat delivery device to the heat storage device, so that the heat storage device is closer to the heat network device than the heat delivery device, shortening the distance from the heat network device to the heat storage device, reducing heat loss during transmission, so that the heat network device can more directly and efficiently utilize the heat energy in the hot well, and improve the heating efficiency.

[0006] In some embodiments of the present invention, there are one or more heat storage devices. When there are multiple heat storage devices, the multiple heat storage devices exchange heat with the first heat supply medium and the second heat supply medium respectively.

[0007] In some embodiments of the present invention, there are one or more heat network devices. When there are multiple heat network devices, the second heat supply medium of the multiple heat network devices exchanges heat with the heat storage device respectively.

[0008] In some embodiments of the present invention, the heat storage device also includes: a first heat exchange component, the first heat exchange component is located between the hot well and the cold well and has a first pipeline and a second pipeline, the first pipeline is connected to the hot well and the cold well respectively, the second pipeline is connected to the heat delivery device, and the first pipeline and the second pipeline exchange heat with each other.

[0009] In some embodiments of the present invention, a first control valve is provided between the first heat exchange component and the cold well, for controlling the conduction between the first heat exchange component and the cold well.

[0010] In some embodiments of the present invention, the first heat supply medium is water, and the heat delivery device includes: a heat delivery unit; a first water supply pipeline, the first water supply pipeline is respectively connected to the inlet of the second pipeline and the outlet of the heat delivery unit, and a water supply valve is arranged on the first water supply pipeline; a first return water pipeline, the first water supply pipeline is respectively connected to the outlet of the second pipeline and the inlet of the heat delivery unit, and a return water valve is arranged on the first return water pipeline.

[0011] In some embodiments of the present invention, the heat storage device also includes: a second heat exchange component, the second heat exchange component is located between the hot well and the cold well and has a third pipeline and a fourth pipeline, the third pipeline is connected to the hot well and the cold well respectively, the fourth pipeline is connected to the heat network device, and the third pipeline and the fourth pipeline exchange heat with each other.

[0012] In some embodiments of the present invention, a second control valve is provided between the second heat exchange component and the hot well, for controlling the conduction between the second heat exchange component and the hot well.

[0013] In some embodiments of the present invention, the heating network device includes: a heat user; a second water supply pipeline, the second water supply pipeline is respectively connected to the inlet of the fourth pipeline, the outlet of the heat user and the inlet of the second heat exchange component; a second return water pipeline, the second water supply pipeline is respectively connected to the outlet of the fourth pipeline and the inlet of the heat user.

[0014] In some embodiments of the present invention, it also includes: a hot well submersible pump, the hot well submersible pump is arranged in the hot well, and is used to extract hot water in the hot well; and / or, a cold well submersible pump, the cold well submersible pump is arranged in the cold well, and is used to extract cold water in the cold well; and / or, a first booster pump, the first booster pump is arranged between the cold well and the heat delivery device, and is used to pump cold water to the heat delivery device; and / or, a second booster pump, the second booster pump is arranged between the hot well and the heat network device, and is used to pump hot water to the heat network device; and / or, a first booster pump desander, the first desander is arranged between the cold well and the heat delivery device, and is used to filter the cold water flowing from the cold well to the heat delivery device; and / or, a second desander, the second desander is arranged between the hot well and the heat network device, and is used to filter the hot water flowing from the hot well to the heat network device; and / or, a third booster pump, the third booster pump is arranged between the hot well and the heat delivery device, and is used to pump hot water to the hot well; and / or, a fourth booster pump, the fourth booster pump is arranged between the cold well and the heat network device, and is used to pump cold water to the cold well.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 2 is a schematic structural diagram of a Guantao group heat storage town heating system according to an embodiment of the present invention;

[0018] Figure 2 is a schematic diagram of a Guantao group heat storage town heating system according to another embodiment of the present invention, wherein there are multiple heat delivery devices;

[0019] Figure 3 It is a schematic diagram of a Guantao group heat storage urban heating system according to another embodiment of the present invention, wherein there are multiple heat storage devices.

[0020] Reference numerals:

[0021] 100. Guantao group heat storage town heating system;

[0022] 1. heat storage device; 11. hot well; 12. cold well; 13. first heat exchange component; 131. first pipeline; 132. second pipeline; 14. second heat exchange component; 141. third pipeline; 142. fourth pipeline;

[0023] 2. heat delivery device; 21. heat delivery unit; 22. first water supply pipeline; 23. first water return pipeline; 24. water supply valve; 25. water return valve;

[0024] 3. Heating network device; 31. Heating user; 32. Second water supply pipeline; 33. Second water return pipeline;

[0025] 41. First control valve; 42. Second control valve; 43. Hot well submersible pump; 44. Cold well submersible pump; 45. First booster pump; 46. Second booster pump; 47. First desander; 48. Second desander; 49. Third booster pump; 40. Fourth booster pump. DETAILED DESCRIPTION

[0026] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0027] 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 positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] The following describes the Guantao group heat storage urban heating system 100 according to an embodiment of the present invention with reference to the accompanying drawings.

[0030] like Figure 1As shown, the Guantao group heat storage urban heating system 100 according to an embodiment of the present invention includes a heat storage device 1, a heat delivery device 2 and a heat network device 3. Among them, the heat storage device 1 includes a hot well 11 and a cold well 12 arranged in the Guantao group layer, and the hot well 11 and the cold well 12 form a loop, and the first heat supply medium of the heat delivery device 2 exchanges heat with the water flowing from the cold well 12 to the hot well 11, and the second heat supply medium of the heat network device 3 exchanges heat with the water flowing from the hot well 11 to the cold well 12.

[0031] It is understandable that in the non-heating season, underground cold water is continuously extracted from the cold well 12 and transported to the hot well 11. During this transportation process, the underground cold water exchanges heat with the first heat supply medium in the heat delivery device 2 and is heated to a certain temperature, thereby becoming hot water. The heated hot water is stored in the hot well 11 for use in the heating season. At the same time, since the underground burial depth of the Guantao formation is about 1200m-1500m, it is a set of river-phase sandstone, conglomerate and mudstone deposits. The average porosity of the aquifer is 25%-30%, and the water temperature is 50℃-55℃. The Guantao formation has a large water storage capacity and a slow flow rate. The annual migration speed is 2m-7m, which is suitable for the storage and insulation of thermal energy. It has the characteristics of large reserves, wide distribution, and good heat storage conditions. The hot well 11 and the cold well 12 are set in the Guantao formation so that the hot well 11 can store hot water.

[0032] In the heating season, the heating condition is entered, and the underground hot water stored in the hot well 11 in the non-heating season is extracted from the hot well 11. The second heating medium of the heat network device 3 flows in through the second water supply pipeline 32 and exchanges heat with the underground hot water in the hot well 11, so that the temperature of the second heating medium is increased and then flows back to the heat pipe device from the second return pipe, and finally delivered to the heat user 31, realizing stable heating for the heat user 31. At the same time, the underground hot water flowing out of the hot well 11 is cooled down after completing the heat exchange with the second heating medium and is re-transported to the cold well 12, waiting to be extracted, heated and stored again in the next non-heating season, thereby realizing the effective utilization and circulation of the cold and hot water of the Guantao formation.

[0033] Therefore, the Guantao group heat storage urban heating system 100 of the present application, while realizing efficient and stable heating for the heat users 31, realizes effective utilization and circulation of hot and cold water through the Guantao group layer, realizes efficient utilization of energy, reduces energy consumption and pollutant emissions, complies with the sustainable development concept of energy conservation and emission reduction, and plays a positive role in protecting the environment and improving air quality.

[0034] The distance from the heat network device 3 to the heat storage device 1 is smaller than the distance from the heat delivery device 2 to the heat storage device 1. It can be understood that in the non-heating season, the outdoor temperature is relatively high, and the heat energy loss in the heat exchange process between the first heat supply medium of the heat delivery device 2 and the water flowing from the cold well 12 to the hot well 11 is small, while in the heating season, the outdoor temperature is relatively low, and the heat energy loss in the heat exchange process between the second heat supply medium of the heat network device 3 and the water flowing from the hot well 11 to the cold well 12 is large. Therefore, the distance from the heat network device 3 to the heat storage device 1 is smaller than the distance from the heat delivery device 2 to the heat storage device 1, so that the heat storage device 1 is closer to the heat network device 3 than the heat delivery device 2, shortening the distance from the heat network device 3 to the heat storage device 1, reducing the heat loss in the transmission process, so that the heat network device 3 can more directly and efficiently utilize the heat energy in the hot well 11, and improve the heating efficiency.

[0035] At the same time, since the distribution of urban heat users 31 is relatively scattered, compared with the centralized layout of the existing technology, there are problems such as high investment in the heating pipeline network and high heat loss when the hot water reaches the heat user 31. This application opens a hot well 11 and a cold well 12 in the Guantao group around each user who needs heating (one or several communities constitute a user), and heats the corresponding users through the hot water in the hot well 11 during the heating season, effectively reducing the additional laying of the heating pipeline network, reducing investment costs, and reducing heat storage losses, thereby increasing the heating temperature of the heat user 31.

[0036] Specifically, in actual applications, the heat network device 3 includes a heat user 31, and the hot well 11 and the cold well 12 are opened in the Guantao group layer near the heat user 31. The distance from the heat network device 3 to the heat storage device 1 is smaller than the distance from the heat delivery device 2 to the heat storage device 1. This can be limited by the distance from the hot well 11 to the outlet of the second return water pipe of the heat user 31 is smaller than the distance from the hot well 11 to the outlet of the second return water pipe of the heat delivery device 2, or the distance from the cold well 12 to the outlet of the second return water pipe of the heat user 31 is smaller than the distance from the cold well 12 to the outlet of the second return water pipe of the heat delivery device 2.

[0037] According to the Guantao group heat storage urban heating system 100 of the embodiment of the present invention, the heat storage device 1 is arranged in the Guantao group layer and includes a hot well 11 and a cold well 12. The hot well 11 and the cold well 12 form a loop. The first heating medium of the heat delivery device 2 exchanges heat with the water flowing from the cold well 12 to the hot well 11, and the second heating medium of the heat network device 3 exchanges heat with the water flowing from the hot well 11 to the cold well 12. While achieving efficient and stable heating for the heat users 31, the cold and hot water in the Guantao group layer are effectively utilized and circulated, thereby achieving efficient utilization of energy, reducing energy consumption and pollutant emissions, complying with the sustainable development concept of energy conservation and emission reduction, and playing a positive role in protecting the environment and improving air quality. At the same time, the distance from the heating network device 3 to the heat storage device 1 is smaller than the distance from the heat delivery device 2 to the heat storage device 1, so that the heat storage device 1 is closer to the heating network device 3 than the heat delivery device 2, shortening the distance from the heating network device 3 to the heat storage device 1, and reducing heat loss during transmission, so that the heating network device 3 can more directly and efficiently utilize the thermal energy in the hot well 11, thereby improving the heating efficiency.

[0038] In some embodiments of the present invention, Figure 3 As shown, there are one or more heat storage devices 1. When there are multiple heat storage devices 1, the multiple heat storage devices 1 exchange heat with the first heat supply medium and the second heat supply medium respectively. Therefore, one or more heat storage devices 1 can be set according to the heating demand of the heat network device 3, so as to more flexibly adapt to the heat load demand of different heat network devices 3, improve the heat exchange efficiency, and ensure the stability and reliability of the Guantao group heat storage town heating system 100.

[0039] At the same time, when there are multiple heat storage devices 1, multiple heat storage devices 1 respectively exchange heat with the first heat supply medium and the second heat supply medium, which effectively improves the heat exchange efficiency of each heat storage device 1, and each heat storage device 1 works independently, thereby avoiding the shutdown of the entire system due to a failure of a certain heat storage device 1.

[0040] In some embodiments of the present invention, Figure 2 As shown, there are one or more heat network devices 3. When there are multiple heat network devices 3, the second heat supply medium of multiple heat network devices 3 respectively exchanges heat with the heat storage device 1. Therefore, according to the heating demand of the heat network device 3, one heat network device 3 corresponds to one heat storage device 1, or multiple heat storage devices correspond to one heat storage device 1, so as to more flexibly adapt to the heat load demand of different heat network devices 3, improve the heat exchange efficiency, and ensure the stability and reliability of the Guantao group heat storage town heating system 100.

[0041] At the same time, when there are multiple heat network devices 3, the second heat supply medium of the multiple heat network devices 3 exchanges heat with the heat storage device 1 respectively, effectively improving the heat exchange efficiency between the heat storage device 1 and each heat network device 3, and meeting the heating demand of each heat network device 3.

[0042] In some embodiments of the present invention, Figure 1 As shown, the heat storage device 1 further includes a first heat exchange component 13. The first heat exchange component 13 is located between the hot well 11 and the cold well 12 and has a first pipeline 131 and a second pipeline 132. The first pipeline 131 is connected to the hot well 11 and the cold well 12 respectively, and the second pipeline 132 is connected to the heat delivery device 2. The first pipeline 131 and the second pipeline 132 exchange heat with each other.

[0043] It can be understood that the hot well 11 and the cold well 12 are connected through the first pipeline 131, and the second pipeline 132 is connected to the heat delivery device 2. In the process of extracting underground cold water from the cold well 12 and delivering it to the hot well 11, the underground cold water flows into the first pipeline 131 through the cold well 12 and exchanges heat with the first heat supply medium in the second pipeline 132 before flowing into the hot well 11. Thus, the first heat supply medium of the heat delivery device 2 and the water flowing from the cold well 12 to the hot well 11 are heat exchanged through the first heat exchange component 13.

[0044] In some embodiments of the present invention, Figure 1 As shown, a first control valve 41 is provided between the first heat exchange component 13 and the cold well 12, which is used to control the conduction between the first heat exchange component 13 and the cold well 12. Thus, by controlling the opening and closing of the first control valve 41, the conduction between the first heat exchange component 13 and the cold well 12 is controlled. In the non-heating season, the first control valve 41 is controlled to be open, so that the first pipeline 131 and the second pipeline 132 exchange heat with each other, so as to realize the heat exchange between the first heat supply medium of the heat exchange and heat delivery device 2 and the water flowing from the cold well 12 to the hot well 11. In the heating season, the first control valve 41 is controlled to be closed, so as to ensure the heat exchange between the second heat supply medium of the heating network device 3 and the water flowing from the hot well 11 to the cold well 12.

[0045] In some embodiments of the present invention, Figure 1 As shown, the first heat supply medium is water, and the heat delivery device 2 includes a heat delivery unit 21, a first water supply pipeline 22 and a first water return pipeline 23. The first water supply pipeline 22 is respectively connected to the inlet of the second pipeline 132 and the outlet of the heat delivery unit 21, a water supply valve 24 is provided on the first water supply pipeline 22, the first water supply pipeline 22 is respectively connected to the outlet of the second pipeline 132 and the inlet of the heat delivery unit 21, and a water return valve 25 is provided on the first water return pipeline 23.

[0046] It can be understood that the heat delivery unit 21 delivers hot water to the first water supply pipeline 22. The hot water flows into the second pipeline 132 and exchanges heat with the first pipeline 131 for cooling. Then, the hot water flows from the second pipeline 132 to the first water supply pipeline 22 and then flows back to the heat delivery unit 21, thereby realizing heat exchange between the first heat supply medium of the heat delivery device 2 and the water flowing from the cold well 12 to the hot well 11, so that the groundwater delivered to the hot well 11 is hot water.

[0047] At the same time, the conduction between the heat delivery unit 21 and the second pipeline 132 is controlled by opening and closing the water supply valve 24 set on the first water supply pipeline 22 and opening and closing the return water valve 25 set on the first return water pipeline 23. In the non-heating season, the water supply valve 24 and the return water valve 25 are controlled to be opened so that the heat delivery unit 21 is connected to the second pipeline 132, so as to realize the mutual heat exchange between the first pipeline 131 and the second pipeline 132. In the heating season, the water supply valve 24 and the return water valve 25 are controlled to be closed to ensure the heat exchange between the second heating medium of the heating network device 3 and the water flowing from the hot well 11 to the cold well 12.

[0048] In addition, since the distance from the heat network device 3 to the heat storage device 1 is smaller than the distance from the heat delivery device 2 to the heat storage device 1, and the distance from the heat storage device 1 to the heat delivery unit 21 is relatively far, by limiting the first heat supply medium to water, the heat exchange efficiency between the first heat supply medium of the heat delivery device 2 and the water flowing from the cold well 12 to the hot well 11 is ensured, thereby improving the overall reliability.

[0049] Optionally, the heat delivery unit 21 may be a coal-fired power plant, a photovoltaic power generation device, a wind power generation device or a tidal power generation device.

[0050] In some embodiments of the present invention, Figure 1 As shown, the heat storage device 1 further includes a second heat exchange component 14. The second heat exchange component 14 is located between the hot well 11 and the cold well 12 and has a third pipeline 141 and a fourth pipeline 142. The third pipeline 141 is connected to the hot well 11 and the cold well 12 respectively, and the fourth pipeline 142 is connected to the heat network device 3. The third pipeline 141 and the fourth pipeline 142 exchange heat with each other.

[0051] It can be understood that the hot well 11 and the cold well 12 are connected through the third pipeline 141, and the fourth pipeline 142 is connected to the heat network device 3. In the process of extracting groundwater stored in the hot well 11 in the non-heating season and transporting it to the cold well 12, the groundwater flows into the third pipeline 141 through the hot well 11 and exchanges heat with the second heating medium in the fourth pipeline 142 before flowing into the cold well 12. Thus, the heat exchange between the second heating medium of the heat network device 3 and the water flowing from the hot well 11 to the cold well 12 is realized through the second heat exchange component 14.

[0052] In some embodiments of the present invention, Figure 1As shown, there is a second control valve 42 between the second heat exchange component 14 and the hot well 11, which is used to control the conduction between the second heat exchange component 14 and the hot well 11. Therefore, by controlling the opening and closing of the second control valve 42, the conduction between the second heat exchange component 14 and the hot well 11 is controlled. In the heating season, the second control valve 42 is controlled to be open, so that the third pipeline 141 and the fourth pipeline 142 exchange heat with each other, so as to realize the heat exchange between the second heating medium of the heating network device 3 and the water flowing from the hot well 11 to the cold well 12. In the non-heating season, the second control valve 42 is controlled to be closed to ensure that the first heating medium of the heat exchange and heat delivery device 2 and the water flowing from the cold well 12 to the hot well 11 are exchanged.

[0053] In some embodiments of the present invention, Figure 1 As shown, the heat network device 3 includes a heat user 31, a second water supply pipeline 32 and a second water return pipeline 33. The second water supply pipeline 32 is respectively connected to the inlet of the fourth pipeline 142 and the outlet of the heat user 31 and the inlet of the second heat exchange component 14, and the second water supply pipeline 32 is respectively connected to the outlet of the fourth pipeline 142 and the inlet of the heat user 31.

[0054] It is understandable that the heat user 31 may be a community or unit or other entity that needs heating. Specifically, the heat user 31 delivers cold water to the second water supply pipeline 32, and the cold water flows into the fourth pipeline 142 and exchanges heat with the third pipeline 141 to increase the temperature, and then flows from the fourth pipeline 142 to the second water supply pipeline 32 and then flows back to the heat user 31, thereby achieving heat exchange between the second heating medium of the heat network device 3 and the water flowing from the hot well 11 to the cold well 12, and delivering heating to the heat user 31.

[0055] In some embodiments of the present invention, Figure 1 As shown, the Guantao group heat storage urban heating system 100 also includes a hot well 11 submersible pump, which is arranged in the hot well 11 and is used to extract hot water in the hot well 11. Therefore, the hot well 11 submersible pump is designed and installed inside the hot well 11, so that the hot well 11 submersible pump can extract the hot water accumulated in the hot well 11 during the heating season, ensuring that the hot water in the hot well 11 can be transported to the cold well 12.

[0056] In some embodiments of the present invention, Figure 1 As shown, the Guantao group heat storage urban heating system 100 also includes a cold well 12 submersible pump, which is arranged in the cold well 12 and is used to extract cold water in the cold well 12. Therefore, the cold well 12 submersible pump is designed and installed inside the cold well 12, so that the cold well 12 submersible pump can extract cold water from the hot well 11 in the non-heating season, ensuring that the cold water in the cold well 12 can be transported to the hot well 11.

[0057] In some embodiments of the present invention, Figure 1As shown, the Guantao group heat storage urban heating system 100 also includes a first booster pump 45, which is arranged between the cold well 12 and the heat delivery device 2, and is used to pump cold water to the heat delivery device 2. Thus, the first booster pump 45 provides cold water with sufficient pressure to the heat delivery device 2, ensuring that the cold water can flow smoothly to the heat delivery device 2 and exchange heat with the first heat supply medium of the heat delivery device 2, thereby ensuring the stability and heat exchange efficiency of the Guantao group heat storage urban heating system 100.

[0058] In some embodiments of the present invention, Figure 1 As shown, the Guantao group heat storage town heating system 100 also includes a second booster pump 46, which is arranged between the hot well 11 and the heat network device 3, and is used to pump hot water to the heat network device 3. Thus, hot water with sufficient pressure is pumped to the heat network device 3 by the second booster pump 46, ensuring that the hot water can flow smoothly to the heat network device 3 and exchange heat with the second heat supply medium of the heat network device 3, so as to meet the heating demand of the heat network device 3 and ensure the stability and heat exchange efficiency of the Guantao group heat storage town heating system 100.

[0059] In some embodiments of the present invention, Figure 1 As shown, the third booster pump 49 of the Guantao group heat storage town heating system 100 is arranged between the hot well 11 and the heat delivery device 2, and is used to pump hot water to the hot well 11. Thus, the hot water with sufficient pressure is pumped to the hot well 11 by the third booster pump 49, ensuring that the hot water can smoothly flow into the hot well 11 for storage, meeting the needs of the subsequent heating season, and improving the reliability of the Guantao group heat storage town heating system 100.

[0060] In some embodiments of the present invention, Figure 1 As shown, the fourth booster pump 40 of the Guantao group heat storage urban heating system 100 is arranged between the cold well 12 and the heat network device 3, and is used to pump cold water to the cold well 12. Therefore, the cold water with sufficient pressure to the cold well 12 is supplied by the fourth booster pump 40, ensuring that the cold water can smoothly flow into the cold well 12 for storage, meeting the needs of the subsequent non-heating season, and improving the reliability of the Guantao group heat storage urban heating system 100.

[0061] In some embodiments of the present invention, Figure 1 As shown, the Guantao group heat storage urban heating system 100 also includes a first desander 47, which is arranged between the cold well 12 and the heat delivery device 2, and is used to filter the cold water flowing from the cold well 12 to the heat delivery device 2. Thus, impurities and sand particles in the cold water flowing from the cold well 12 to the heat delivery device 2 are filtered out by the first desander 47, thereby improving the reliability of the Guantao group heat storage urban heating system 100.

[0062] In some embodiments of the present invention, Figure 1As shown, the Guantao group heat storage town heating system 100 also includes a second desander 48, which is arranged between the hot well 11 and the heat network device 3, and is used to filter the hot water flowing from the hot well 11 to the heat network device 3. Thus, the impurities and sand particles in the hot water flowing from the hot well 11 to the heat network device 3 are filtered out by the first desander 47, thereby improving the reliability of the Guantao group heat storage town heating system 100.

[0063] The Guantao group heat storage urban heating system 100 and the operation thereof according to the embodiment of the present invention are well known to those skilled in the art and will not be described in detail here.

[0064] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0065] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A Guantao group heat storage town heating system, characterized in that: include: A heat storage device, the heat storage device comprising a hot well and a cold well arranged in the Guantao formation layer, the hot well and the cold well forming a loop; a heat delivery device, wherein a first heat supply medium of the heat delivery device exchanges heat with water flowing from the cold well to the hot well; A heat network device, wherein the second heat supply medium of the heat network device exchanges heat with water flowing from the hot well to the cold well, and the distance from the heat network device to the heat storage device is smaller than the distance from the heat delivery device to the heat storage device.

2. The Guantao group heat storage urban heating system according to claim 1 is characterized in that: There are one or more heat storage devices. When there are multiple heat storage devices, the multiple heat storage devices exchange heat with the first heat supply medium and the second heat supply medium respectively.

3. The Guantao group heat storage urban heating system according to claim 1 is characterized in that: There are one or more heat network devices. When there are multiple heat network devices, the second heat supply medium of the multiple heat network devices exchanges heat with the heat storage device respectively.

4. The Guantao group heat storage urban heating system according to claim 1 is characterized in that: The heat storage device also includes: A first heat exchange component, the first heat exchange component is located between the hot well and the cold well and has a first pipeline and a second pipeline, the first pipeline is connected to the hot well and the cold well respectively, the second pipeline is connected to the heat delivery device, and the first pipeline and the second pipeline exchange heat with each other.

5. The Guantao group heat storage urban heating system according to claim 4 is characterized in that: A first control valve is provided between the first heat exchange component and the cold well, for controlling the conduction between the first heat exchange component and the cold well.

6. The Guantao group heat storage urban heating system according to claim 4 is characterized in that: The first heat supply medium is water, and the heat supply device comprises: Heat delivery unit; a first water supply pipeline, the first water supply pipeline being connected to an inlet of the second pipeline and an outlet of the heat delivery unit respectively, and a water supply valve being arranged on the first water supply pipeline; The first water return pipeline, the first water supply pipeline is connected to the outlet of the second pipeline and the inlet of the heat delivery unit respectively, and a water return valve is arranged on the first water return pipeline.

7. The Guantao group heat storage urban heating system according to claim 1 is characterized in that: The heat storage device also includes: A second heat exchange component, the second heat exchange component is located between the hot well and the cold well and has a third pipeline and a fourth pipeline, the third pipeline is connected to the hot well and the cold well respectively, the fourth pipeline is connected to the heat network device, and the third pipeline and the fourth pipeline exchange heat with each other.

8. The Guantao group heat storage urban heating system according to claim 7 is characterized in that: A second control valve is provided between the second heat exchange component and the hot well, for controlling the conduction between the second heat exchange component and the hot well.

9. The Guantao group heat storage urban heating system according to claim 7 is characterized in that: The heating network device comprises: Hot users; a second water supply pipeline, the second water supply pipeline being respectively connected to the inlet of the fourth pipeline, the outlet of the heat user and the inlet of the second heat exchange component; The second water return pipeline and the second water supply pipeline are respectively connected to the outlet of the fourth pipeline and the inlet of the heat user.

10. The Guantao group heat storage urban heating system according to claim 1 is characterized in that: Also includes: A hot well submersible pump, the hot well submersible pump is arranged in the hot well and is used to extract hot water in the hot well; and / or, a cold well submersible pump, the cold well submersible pump being arranged in the cold well and used for extracting cold water in the cold well; and / or, a first booster pump, the first booster pump being disposed between the cold well and the heat delivery device and being used to pump cold water to the heat delivery device; and / or, a second booster pump, the second booster pump being arranged between the hot well and the heating network device and being used for pumping hot water to the heating network device; and / or, a first desander, the first desander being disposed between the cold well and the heat delivery device and configured to filter cold water flowing from the cold well to the heat delivery device; and / or, a second desander, the second desander being disposed between the hot well and the heat network device and configured to filter hot water flowing from the hot well to the heat network device; and / or, a third booster pump, the third booster pump being disposed between the hot well and the heat delivery device and being used to pump hot water to the hot well; and / or, a fourth booster pump, the fourth booster pump being disposed between the cold well and the heating network device, and being used for pumping cold water to the cold well.

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