Heat supply system
By combining shallow and medium-deep heat pump units with gas-fired heating modules, the existing heating system has solved the problems of complex civil engineering and high cost. It has achieved efficient and stable geothermal energy utilization, reduced the construction and maintenance costs of the heating system, simplified the civil engineering of the heating system, and achieved efficient and stable heating effect.
Patent Information
- Application Number
- CN202520598884.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-01
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-04-01
AI Technical Summary
Existing heating systems are complex in terms of civil engineering and have high heating costs, making it difficult to effectively utilize geothermal energy for efficient heating.
The combined heating system employs shallow and medium-deep geothermal wells, gas-fired heating modules, and a manifold. Through pipeline connections and pump design, it achieves efficient heat energy transfer between shallow and medium-deep geothermal wells and end users. Combined with the heat energy provided by the gas-fired heating modules, it meets heating needs.
No new computer room is needed, which reduces heating costs, and the stability and efficiency of the heating system are ensured by multiple heat sources working together.
Smart Images
Figure CN223939528U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of centralized heating technology, and more particularly to a heating system. Background Technology
[0002] Geothermal energy is a green, low-carbon, and recyclable renewable resource. It is characterized by large reserves, wide distribution, cleanliness, environmental friendliness, stability, and reliability, making it a practical and competitive clean energy source.
[0003] Current heating systems can utilize geothermal energy and traditional boilers for heating simultaneously. However, heating via geothermal energy requires the renovation and construction of new machine rooms on existing buildings, which not only complicates civil engineering but also leads to higher heating costs. Utility Model Content
[0004] This application provides a heating system that solves the problems of complex civil engineering and high heating costs in existing heating systems.
[0005] This utility model embodiment provides a heating system, which includes a shallow heat pump unit, a medium-deep heat pump unit, a gas-fired heating module, a water distributor, and a return water pipe. The first input end of the shallow heat pump unit is connected to a shallow underground pipe, and the first output end of the shallow heat pump unit is connected to the input end of the water distributor. A first delivery pump is installed on the connecting pipe between the first input end of the shallow heat pump unit and the shallow underground pipe. The first input end of the medium-deep heat pump unit is connected to a medium-deep geothermal well, and the first output end of the medium-deep heat pump unit is connected to the input end of the water distributor. A second delivery pump is installed on the connecting pipe between the first input end of the medium-deep heat pump unit and the medium-deep geothermal well. A third delivery pump is installed on the connecting pipe at the input end of the water distributor. The output end of the water distributor is connected to the gas-fired heating module. The input end of the heating module is connected, and the output end of the gas heating module is connected to the input end of the end user; the second input end of the shallow heat pump unit is connected to the output end of the end user, and the second output end of the shallow heat pump unit is connected to the shallow buried pipe; a fourth delivery pump is installed on the connecting pipe between the second input end of the shallow heat pump unit and the output end of the end user; the second input end of the medium-deep heat pump unit is connected to the output end of the end user, and the second output end of the medium-deep heat pump unit is connected to the medium-deep geothermal well; a fifth delivery pump is installed on the connecting pipe between the second input end of the medium-deep heat pump unit and the output end of the end user; the input end of the return water pipe is connected to the output end of the end user, and the output end of the return water pipe is connected to the input end of the water distributor.
[0006] In one possible implementation, the heating system further includes a switching pipe, a first valve, and a second valve; the first valve is disposed on a connecting pipe between the output end of the water distributor and the input end of the gas heating module; the input end of the switching pipe is connected to the output end of the water distributor, and the output end of the switching pipe is connected to the end user; the second valve is disposed on the switching pipe.
[0007] In one possible implementation, the heating system further includes a first filter; the first filter is disposed on the return water pipe.
[0008] In one possible implementation, the heating system further includes a second filter; the second filter is disposed on the connecting pipe between the second input terminal of the shallow heat pump unit and the output terminal of the end user.
[0009] In one possible implementation, the heating system further includes a first delivery pipe and a second delivery pipe; the input end of the first delivery pipe is connected to the first output end of the medium-deep heat pump unit, and the output end of the first delivery pipe is connected to the shallow buried pipe; the input end of the second delivery pipe is connected to the shallow buried pipe, and the output end of the second delivery pipe is connected to the second input end of the medium-deep heat pump unit.
[0010] One or more technical solutions provided in the embodiments of this utility model have at least the following technical effects or advantages:
[0011] This utility model embodiment provides a heating system including a shallow heat pump unit, a medium-deep heat pump unit, a gas-fired heating module, a manifold, and a return water pipe. The first input end of the shallow heat pump unit is connected to a shallow underground pipe, and the first output end of the shallow heat pump unit is connected to the input end of the manifold. A first delivery pump is installed on the connecting pipe between the first input end of the shallow heat pump unit and the shallow underground pipe. The first input end of the medium-deep heat pump unit is connected to a medium-deep geothermal well, and the first output end of the medium-deep heat pump unit is connected to the input end of the manifold. A second delivery pump is installed on the connecting pipe between the first input end of the medium-deep heat pump unit and the medium-deep geothermal well. A third delivery pump is installed on the connecting pipe at the input end of the manifold. The output end of the manifold is connected to the input end of the gas-fired heating module, and the output end of the gas-fired heating module is connected to the input end of the end user. The second input end of the shallow heat pump unit is connected to the output end of the end user, and the second output end of the shallow heat pump unit is connected to the shallow underground pipe. A fourth delivery pump is installed on the connecting pipe between the second input end of the shallow heat pump unit and the output end of the end user. The second input end of the medium-deep heat pump unit is connected to the output end of the end user, and the second output end of the medium-deep heat pump unit is connected to the medium-deep geothermal well. A fifth delivery pump is installed on the connecting pipe between the second input end of the medium-deep heat pump unit and the output end of the end user. The input end of the return water pipe is connected to the output end of the end user, and the output end of the return water pipe is connected to the input end of the manifold. When heating demand is high, the shallow heat pump unit, the medium-deep heat pump unit, the first delivery pump, the second delivery pump, and the third delivery pump are turned on. Then, the shallow buried pipe and the medium-deep geothermal well work simultaneously, and the extracted geothermal energy is heated by the shallow and medium-deep heat pump units and then combined with the heat energy provided by the gas heating module to provide heating to the end user. This not only eliminates the need for a new machine room but also reduces heating costs. Attached Figure Description
[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0013] Figure 1 A schematic diagram illustrating simultaneous heating by a shallow heat pump unit, a medium-deep heat pump unit, and a gas-fired heating module, as provided in an embodiment of this application.
[0014] Figure 2 A schematic diagram illustrating simultaneous heating by a shallow heat pump unit and a medium-deep heat pump unit, provided for embodiments of this application;
[0015] Figure 3A schematic diagram illustrating the heating provided by a medium-deep heat pump unit in an embodiment of this application;
[0016] Figure 4 This is a schematic diagram illustrating the process of supplementing shallow buried pipes with heat through a medium-deep geothermal well, as provided in an embodiment of this application.
[0017] Icons: 1-Shallow heat pump unit; 2-Medium-deep heat pump unit; 3-Gas heating module; 4-Manifold; 5-Return water pipe; 6-Shallow buried pipe; 7-Medium-deep geothermal well; 8-End user; 9-Switching pipe; 10-First valve; 11-Second valve; 12-First filter; 13-Second filter; 14-First delivery pipe; 15-Second delivery pipe; 16-Fifth delivery pump; 17-First delivery pump; 18-Second delivery pump; 19-Third delivery pump; 20-Fourth delivery pump. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.
[0019] In the description of the embodiments of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the embodiments of this utility model and simplifying the description. They 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, and therefore should not be construed as a limitation of this utility model. The terms "first," "second," "third," "fourth," and "fifth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, the terms "installed," "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; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this utility model can be understood according to the specific circumstances.
[0020] like Figures 1-4As shown, this embodiment of the present invention provides a heating system, which includes a shallow heat pump unit 1, a medium-deep heat pump unit 2, a gas-fired heating module 3, a water distributor 4, and a return water pipe 5. The first input end of the shallow heat pump unit 1 is connected to a shallow underground pipe 6, and the first output end of the shallow heat pump unit 1 is connected to the input end of the water distributor 4. A first delivery pump 17 is installed on the connecting pipe between the first input end of the shallow heat pump unit 1 and the shallow underground pipe 6. The first input end of the medium-deep heat pump unit 2 is connected to a medium-deep geothermal well 7, and the first output end of the medium-deep heat pump unit 2 is connected to the input end of the water distributor 4. A second delivery pump 18 is installed on the connecting pipe between the first input end of the medium-deep heat pump unit 2 and the medium-deep geothermal well 7. A third delivery pump 19 is installed on the connecting pipe at the input end of the water distributor 4. The output end of the water distributor 4 is connected to the input end of the gas-fired heating module 3, and the output end of the gas-fired heating module 3 is connected to the input end of the end user 8. When heating demand is high, shallow heat pump unit 1, medium-deep heat pump unit 2, first transfer pump 17, second transfer pump 18 and third transfer pump 19 are turned on. Then, shallow buried pipe 6 and medium-deep geothermal well 7 work simultaneously. The extracted geothermal energy is heated by shallow heat pump unit 1 and medium-deep heat pump unit 2 and then used together with the heat energy provided by gas heating module 3 to provide heating to end users 8. This not only eliminates the need to build a new machine room, but also reduces heating costs.
[0021] like Figure 1 As shown, the second input end of the shallow heat pump unit 1 is connected to the output end of the end user 8, and the second output end of the shallow heat pump unit 1 is connected to the shallow buried pipe 6. A fourth transfer pump 20 is installed on the connecting pipe between the second input end of the shallow heat pump unit 1 and the output end of the end user 8. The second input end of the medium-deep heat pump unit 2 is connected to the output end of the end user 8, and the second output end of the medium-deep heat pump unit 2 is connected to the medium-deep geothermal well 7. A fifth transfer pump 16 is installed on the connecting pipe between the second input end of the medium-deep heat pump unit 2 and the output end of the end user 8. Specifically, the low-temperature water flowing out from the output end of the end user 8 is transported to the shallow buried pipe 6 by the fourth transfer pump 20 and to the medium-deep geothermal well 7 by the fifth transfer pump 16 to continue heat exchange, thereby achieving continuous and uninterrupted heating.
[0022] In practical applications, the input end of the return water pipe 5 is connected to the output end of the end user 8, and the output end of the return water pipe 5 is connected to the input end of the water distributor 4. Specifically, the return water pipe 5 can also be used for maintenance.
[0023] This utility model embodiment provides a heating system, which includes a shallow heat pump unit 1, a medium-deep heat pump unit 2, a gas-fired heating module 3, a water distributor 4, and a return water pipe 5. The first input end of the shallow heat pump unit 1 is connected to a shallow underground pipe 6, and the first output end of the shallow heat pump unit 1 is connected to the input end of the water distributor 4. A first delivery pump 17 is installed on the connecting pipe between the first input end of the shallow heat pump unit 1 and the shallow underground pipe 6. The first input end of the medium-deep heat pump unit 2 is connected to a medium-deep geothermal well 7, and the first output end of the medium-deep heat pump unit 2 is connected to the input end of the water distributor 4. A second delivery pump 18 is installed on the connecting pipe between the first input end of the medium-deep heat pump unit 2 and the medium-deep geothermal well 7. A third delivery pump 19 is installed on the connecting pipe at the input end of the water distributor 4. The output end of the water distributor 4 is connected to the input end of the gas-fired heating module 3, and the output end of the gas-fired heating module 3 is connected to the input end of the end user 8. The second input terminal of the shallow heat pump unit 1 is connected to the output terminal of the end user 8, and the second output terminal of the shallow heat pump unit 1 is connected to the shallow buried pipe 6. A fourth transfer pump 20 is installed on the connecting pipe between the second input terminal of the shallow heat pump unit 1 and the output terminal of the end user 8. The second input terminal of the medium-deep heat pump unit 2 is connected to the output terminal of the end user 8, and the second output terminal of the medium-deep heat pump unit 2 is connected to the medium-deep geothermal well 7. A fifth transfer pump 16 is installed on the connecting pipe between the second input terminal of the medium-deep heat pump unit 2 and the output terminal of the end user 8. The input terminal of the return water pipe 5 is connected to the output terminal of the end user 8, and the output terminal of the return water pipe 5 is connected to the input terminal of the water distributor 4. When heating demand is high, shallow heat pump unit 1, medium-deep heat pump unit 2, first transfer pump 17, second transfer pump 18 and third transfer pump 19 are turned on. Then, shallow buried pipe 6 and medium-deep geothermal well 7 work simultaneously. The extracted geothermal energy is heated by shallow heat pump unit 1 and medium-deep heat pump unit 2 and then used together with the heat energy provided by gas heating module 3 to provide heating to end users 8. This not only eliminates the need to build a new machine room, but also reduces heating costs.
[0024] In practical applications, this heating system also includes a switching pipe 9, a first valve 10, and a second valve 11. The first valve 10 is installed on the connecting pipe between the output end of the distributor 4 and the input end of the gas heating module 3. The input end of the switching pipe 9 is connected to the output end of the distributor 4, and the output end of the switching pipe 9 is connected to the end user 8. The second valve 11 is installed on the switching pipe 9. Figure 2 As shown, when heating demand is relatively low, the second valve 11 is opened, the first valve 10 and the gas heating module 3 are closed, and heating is supplied through the shallow buried pipe 6 and the medium-deep geothermal well 7; Figure 3As shown, when heating demand is lower, the second valve 11 is opened, and the first valve 10, gas heating module 3, and shallow heat pump unit 1 are closed, with heating supplied only through the medium-deep geothermal well 7. This heating method fully leverages the clean and energy-saving advantages of geothermal energy, minimizing the consumption of traditional energy sources while meeting heating demands.
[0025] In this embodiment, the heating system further includes a first filter 12. The first filter 12 is installed on the return water pipe 5. Specifically, the first filter 12 can remove impurities and particles from the water to prevent impurities from entering the heating equipment such as the water distributor 4 and the gas heating module 3, and causing damage to the heating equipment.
[0026] In this embodiment, the heating system further includes a second filter 13. The second filter 13 is disposed on the connecting pipe between the second input end of the shallow heat pump unit 1 and the output end of the end user 8. Specifically, the second filter 13 can remove impurities and particles from the water to prevent impurities from entering the heating equipment such as the shallow heat pump unit 1 and the medium-deep heat pump unit 2, and causing damage to the heating equipment.
[0027] like Figure 4 As shown, the heating system also includes a first delivery pipe 14 and a second delivery pipe 15. The input end of the first delivery pipe 14 is connected to the first output end of the medium-deep heat pump unit 2, and the output end of the first delivery pipe 14 is connected to the shallow buried pipe 6. The input end of the second delivery pipe 15 is connected to the shallow buried pipe 6, and the output end of the second delivery pipe 15 is connected to the second input end of the medium-deep heat pump unit 2. Specifically, during the non-heating season, the heating equipment, including the shallow heat pump unit 1, the medium-deep heat pump unit 2, the gas heating module 3, the fifth delivery pump 16, the first delivery pump 17, the second delivery pump 18, the third delivery pump 19, and the fourth delivery pump 20, are all in a shut-off state. When it is necessary to supplement the shallow buried pipe 6 with heat from the medium-deep geothermal well 7 and the heat from the medium-deep geothermal well 7 is sufficient, the second transfer pump 18 is activated. When it is necessary to supplement the shallow buried pipe 6 with heat from the medium-deep geothermal well 7 and the heat from the medium-deep geothermal well 7 is insufficient, the medium-deep heat pump unit 2, the fifth transfer pump 16, and the second transfer pump 18 are activated so that the medium-deep heat pump unit 2 can heat the water output from the medium-deep geothermal well 7 to the required temperature. This application can supplement the shallow buried pipe 6 with heat from the medium-deep geothermal well 7, which not only effectively utilizes idle energy during the non-heating season but also maintains the heating capacity of the shallow buried pipe 6, ensuring the long-term stable operation of the heating system.
[0028] The various embodiments in this specification are described in a progressive manner. For the same or similar parts between the various embodiments, please refer to each other. Each embodiment focuses on describing the differences from other embodiments.
[0029] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of this application.
Claims
1. A heating system, characterized in that, It includes a shallow heat pump unit (1), a medium-deep heat pump unit (2), a gas heating module (3), a water distributor (4), and a return water pipe (5); The first input end of the shallow heat pump unit (1) is connected to the shallow underground pipe (6), and the first output end of the shallow heat pump unit (1) is connected to the input end of the water distributor (4). A first delivery pump (17) is installed on the connecting pipe between the first input end of the shallow heat pump unit (1) and the shallow buried pipe (6); The first input end of the medium-deep heat pump unit (2) is connected to the medium-deep geothermal well (7), and the first output end of the medium-deep heat pump unit (2) is connected to the input end of the water distributor (4); A second delivery pump (18) is installed on the connecting pipe between the first input end of the medium-deep heat pump unit (2) and the medium-deep geothermal well (7); A third delivery pump (19) is installed on the connecting pipe at the input end of the water distributor (4); The output end of the water distributor (4) is connected to the input end of the gas heating module (3), and the output end of the gas heating module (3) is connected to the input end of the end user (8). The second input end of the shallow heat pump unit (1) is connected to the output end of the end user (8), and the second output end of the shallow heat pump unit (1) is connected to the shallow underground pipe (6). A fourth delivery pump (20) is installed on the connecting pipe between the second input end of the shallow heat pump unit (1) and the output end of the end user (8); The second input end of the medium-deep heat pump unit (2) is connected to the output end of the end user (8), and the second output end of the medium-deep heat pump unit (2) is connected to the medium-deep geothermal well (7); A fifth delivery pump (16) is installed on the connecting pipe between the second input end of the medium-deep heat pump unit (2) and the output end of the end user (8); The input end of the return water pipe (5) is connected to the output end of the end user (8), and the output end of the return water pipe (5) is connected to the input end of the water distributor (4).
2. The heating system according to claim 1, characterized in that, It also includes a switching pipe (9), a first valve (10), and a second valve (11); The first valve (10) is installed on the connecting pipe between the output end of the water distributor (4) and the input end of the gas heating module (3); The input end of the switching pipe (9) is connected to the output end of the water distributor (4), and the output end of the switching pipe (9) is connected to the end user (8); The second valve (11) is installed on the switching pipe (9).
3. The heating system according to claim 1, characterized in that, It also includes a first filter (12); The first filter (12) is installed on the return water pipe (5).
4. The heating system according to claim 1, characterized in that, It also includes a second filter (13); The second filter (13) is installed on the connecting pipe between the second input end of the shallow heat pump unit (1) and the output end of the end user (8).
5. The heating system according to claim 1, characterized in that, It also includes a first delivery pipe (14) and a second delivery pipe (15); The input end of the first delivery pipe (14) is connected to the first output end of the medium-deep heat pump unit (2), and the output end of the first delivery pipe (14) is connected to the shallow buried pipe (6). The input end of the second delivery pipe (15) is connected to the shallow buried pipe (6), and the output end of the second delivery pipe (15) is connected to the second input end of the medium-deep heat pump unit (2).