A modular geothermal heating system and installation method

Abstract

The present invention relates to the technical field of geothermal resource development and utilization, and discloses a modular geothermal heating system and installation method, including: a heat exchange and circulation module, a secondary temperature increase and reuse module, a water treatment module, an automatic water replenishment module, a power distribution and automatic control module and a steel frame foundation; wherein the heat exchange and circulation module is connected to the secondary temperature increase and reuse module through a pipeline interface, and the heat exchange and circulation module is connected to the water treatment module through a pipeline interface; the heat exchange and circulation module, the secondary temperature increase and reuse module, the water treatment module and the automatic water replenishment module are all connected to the power distribution and automatic control module through power cables; and each module is respectively arranged on a steel frame foundation. The equipment is modularized and has an independent steel frame foundation. Each device of the module is installed and fixed on the steel frame foundation in a factory workshop to form an independent module. Each independent module can be quickly connected into a system after arriving at the site, and the installation and construction are convenient, which saves the construction period.

Description

Technical Field

[0001] The present invention relates to the technical field of geothermal resource development and utilization, and in particular to a modular geothermal heating system and an installation method. Background Art

[0002] Geothermal resources are a clean and renewable energy source with large reserves, wide distribution and good stability. The development and utilization of geothermal resources is of great significance for energy conservation and emission reduction. Geothermal heating is an important way to develop and utilize geothermal resources. With its advantages of cleanliness, pollution-free, low operating cost and high benefits of comprehensive resource utilization, coupled with heat pump technology, it has been widely valued in areas where conventional energy is relatively scarce and there are conditions for the development of geothermal resources. It has broad development prospects.

[0003] The existing geothermal heating system consists of cyclone desander, decontaminant remover, booster pump, plate heat exchanger, water source heat pump unit, circulation pump, water supply pump, water tank, softening water device, primary filter, secondary filter, valve, instrument, electronic control and other components. During installation, these devices are usually transported to the installation site separately, and then the installation workers connect the various components according to the process technology through welding or flange to form a complete geothermal heating system. Due to the limitations of the on-site environment and conditions, the installation quality cannot be guaranteed, and it requires a lot of manpower and time, with low production efficiency, which is not conducive to mass and convenient construction. Summary of the invention

[0004] The present invention provides a modular geothermal heating system and installation method to solve the problems that the installation quality cannot be guaranteed due to limitations of the on-site environment and conditions, a large amount of time and effort is required, the production efficiency is low, and it is not conducive to batch and convenient construction.

[0005] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0006] A modular geothermal heating system, comprising: a heat exchange and circulation module, a secondary temperature raising and recycling module, a water treatment module, an automatic water replenishment module, a power distribution and automatic control module and a steel frame foundation;

[0007] The heat exchange and circulation module, the secondary temperature raising and recycling module, the water treatment module and the automatic water replenishment module are all provided with pipeline interfaces, the heat exchange and circulation module is connected to the secondary temperature raising and recycling module through the pipeline interface, and the heat exchange and circulation module is connected to the water treatment module through the pipeline interface;

[0008] The heat exchange and circulation module, the secondary temperature raising and recycling module, the water treatment module and the automatic water replenishment module are all connected to the power distribution and automatic control module through power cables;

[0009] The heat exchange and circulation module, the secondary temperature raising and recycling module, the water treatment module, the automatic water replenishment module, the power distribution and automatic control module are respectively arranged on the steel frame basis.

[0010] Furthermore, the heat exchange and circulation module includes: a primary plate heat exchanger, a secondary plate heat exchanger, a secondary side main circulation pump and a secondary side standby circulation pump; the primary plate heat exchanger is connected to the secondary plate heat exchanger, the secondary side main circulation pump and the secondary side standby circulation pump are connected in parallel and connected to the primary plate heat exchanger; the primary plate heat exchanger, the secondary plate heat exchanger, the secondary side main circulation pump and the secondary side standby circulation pump are fixed on a steel frame foundation to form a heat exchange and circulation module.

[0011] Furthermore, the secondary temperature increase and reuse module includes: a water source heat pump unit, a main intermediate water circulation pump and a backup intermediate water circulation pump; the main intermediate water circulation pump and the backup intermediate water circulation pump are connected in parallel and connected to the water source heat pump unit; the water source heat pump unit, the main intermediate water circulation pump and the backup intermediate water circulation pump are fixed on a steel frame foundation to form a secondary temperature increase and reuse module.

[0012] Furthermore, the water treatment module includes: a cyclone desander, a decontaminant, a pressure pump, a primary water treatment device A, a primary water treatment device B, a secondary water treatment device C and a secondary water treatment device D; the cyclone desander, the decontaminant and the pressure pump are connected in sequence; the primary water treatment device A is connected in parallel with the primary water treatment device B and is connected to the pressure pump; the secondary water treatment device C is connected to the primary water treatment device A; the secondary water treatment device D is connected to the primary water treatment device B; the cyclone desander, the decontaminant, the pressure pump, the primary water treatment device A, the primary water treatment device B, the secondary water treatment device C and the secondary water treatment device D are fixed on a steel frame foundation to form a water treatment module.

[0013] Furthermore, the automatic water replenishment module includes: a softened water device, a water storage tank, a main water replenishment pump and a backup water replenishment pump; the main water replenishment pump, the backup water replenishment pump and the softened water device are respectively connected to the water storage tank; the softened water device, the water storage tank, the main water replenishment pump and the backup water replenishment pump are fixed on a steel frame foundation to form an automatic water replenishment module.

[0014] Furthermore, the power distribution and automatic control module includes: an incoming line cabinet, an outgoing line cabinet, a first frequency conversion starting cabinet, a second frequency conversion starting cabinet, a third frequency conversion starting cabinet, a fourth frequency conversion starting cabinet and an automatic control cabinet; the first frequency conversion starting cabinet is connected to the secondary side main circulation pump and the secondary side standby circulation pump in the heat exchange and circulation module through a power cable; the second frequency conversion starting cabinet is connected to the main intermediate water circulation pump and the standby intermediate water circulation pump in the secondary temperature increase and reuse module through a power cable; the third frequency conversion starting cabinet is connected to the booster pump in the water treatment module through a power cable; the fourth frequency conversion starting cabinet is connected to the main make-up water pump and the standby make-up water pump in the automatic water replenishment module through a power cable; the incoming line cabinet, the outgoing line cabinet, the first frequency conversion starting cabinet, the second frequency conversion starting cabinet, the third frequency conversion starting cabinet, the fourth frequency conversion starting cabinet and the automatic control cabinet are connected through power cables and fixed on a steel frame foundation to form a power distribution and automatic control module.

[0015] A method for installing a modular geothermal heating system comprises the following steps:

[0016] The equipment in the heat exchange and circulation module, secondary temperature raising and recycling module, water treatment module, automatic water replenishment module and power distribution and automatic control module are respectively assembled in the factory workshop with their corresponding steel frame foundations, and each module is debugged and tested;

[0017] The heat exchange and circulation module, secondary temperature raising and recycling module, water treatment module, automatic water replenishment module and power distribution and automatic control module are connected to form a system when they arrive at the site.

[0018] Furthermore, the steel frame foundation is provided with connecting bolt fixing holes, and the equipment in the heat exchange and circulation module, secondary temperature raising and recycling module, water treatment module, automatic water replenishment module and power distribution and automatic control module and their corresponding steel frame foundations are fixedly connected by screws; the steel frame foundation and the foundation are fixedly connected by expansion screws.

[0019] Furthermore, the pipeline interfaces of the heat exchange and circulation module, the secondary temperature raising and recycling module, the water treatment module and the automatic water replenishment module are all flange interfaces.

[0020] Compared with the prior art, the present invention has at least the following beneficial technical effects:

[0021] 1. The equipment is modularized and has an independent steel frame foundation. The various equipment of the module is installed and fixed on the steel frame foundation in the factory workshop to make independent modules. After arriving at the site, each independent module can be quickly connected into a system, which is convenient for installation and construction and saves construction time.

[0022] 2. Each module is assembled, debugged and tested in the factory workshop, with good construction conditions, which better guarantees the construction quality.

[0023] 3. It adopts modular design and production, and each module can be produced separately, which is convenient for batch and convenient production, thereby improving labor production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0025] Figure 1 This is a plan view of the modular geothermal heating system of the present invention;

[0026] Figure 2 This is a schematic diagram of the heat exchange and circulation module structure of the present invention;

[0027] Figure 3 This is a schematic diagram of the structure of the secondary temperature raising and recycling module of the present invention;

[0028] Figure 4 This is a schematic diagram of the water treatment module structure of the present invention;

[0029] Figure 5 This is a structural schematic diagram of the automatic water replenishment module of the present invention;

[0030] Figure 6 The present invention is a schematic diagram of the power distribution and automatic control module structure.

[0031] Figure symbols: M1, heat exchange and circulation module; M2, secondary temperature raising and recycling module; M3, water treatment module; M4, automatic water replenishment module; M5, power distribution and automatic control module; 1, primary plate heat exchanger; 2, secondary plate heat exchanger; 3, secondary side main circulation pump; 4, secondary side standby circulation pump; 5, first pipeline external interface; 6, second pipeline external interface; 7, third pipeline external interface; 8, fourth pipeline external interface; 9, fifth pipeline external interface; 10, sixth pipeline external interface; 11, water source heat pump unit; 12, main intermediate water circulation pump; 13, standby intermediate water circulation pump; 14, seventh pipeline external interface; 15, eighth pipeline external interface; 16, ninth pipeline external interface External interface; 17, the tenth pipeline external interface; 18, the eleventh pipeline external interface; 19, cyclone desander; 20, decontaminant; 21, booster pump; 22, primary water treatment device A; 23, primary water treatment device B; 24, secondary water treatment device C; 25, secondary water treatment device D; 26, the twelfth pipeline external interface; 27, water storage tank; 28, softened water equipment; 29, main make-up water pump; 30, spare make-up water pump; 31, the thirteenth pipeline external interface; 32, incoming line cabinet; 33, outgoing line cabinet; 34, the first frequency conversion starting cabinet; 35, the second frequency conversion starting cabinet; 36, the third frequency conversion starting cabinet; 37, the fourth frequency conversion starting cabinet; 38, automatic control cabinet. DETAILED DESCRIPTION

[0032] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict.

[0033] The following detailed description is an exemplary description, which is intended to provide further detailed description of the present invention. Unless otherwise specified, all technical terms used in the present invention have the same meaning as those generally understood by those skilled in the art to which the present invention belongs. The terms used in the present invention are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present invention.

[0034] The present invention is further described below in conjunction with the accompanying drawings.

[0035] Example 1

[0036] The present invention provides a modular geothermal heating system, such as Figure 1 As shown, it includes: a heat exchange and circulation module M1, a secondary temperature increase and reuse module M2, a water treatment module M3, an automatic water replenishment module M4 and a power distribution and automatic control module M5; each module is provided with an independent rectangular steel frame foundation, and the equipment of each module is connected by pipelines and installed on the steel frame foundation of the corresponding module to form a corresponding module; the heat exchange and circulation module M1, the secondary temperature increase and reuse module M2, the water treatment module M3 and the automatic water replenishment module M4 are all provided with pipeline interfaces, wherein the heat exchange and circulation module M1 is connected to the secondary temperature increase and reuse module M2, and the heat exchange and circulation module M1 is connected to the water treatment module M3; the heat exchange and circulation module M1, the secondary temperature increase and reuse module M2, the water treatment module M3 and the automatic water replenishment module M4 are all connected to the power distribution and automatic control module M5 through power cables.

[0037] like Figure 2As shown, the heat exchange and circulation module M1 includes: a primary plate heat exchanger 1, a secondary plate heat exchanger 2, a secondary side main circulation pump 3 and a secondary side standby circulation pump 4; the primary plate heat exchanger 1 is connected to the secondary plate heat exchanger 2, the secondary side main circulation pump 3 and the secondary side standby circulation pump 4 are connected in parallel and connected to the primary plate heat exchanger 1; the equipment is fixed on a steel frame foundation to form a heat exchange and circulation module M1. The heat exchange and circulation module M1 also includes: a first pipeline external interface 5, a second pipeline external interface 6, a third pipeline external interface 7, a fourth pipeline external interface 8, a fifth pipeline external interface 9 and a sixth pipeline external interface 10; the first pipeline external interface 5 is connected to the community heating return water pipeline, the second pipeline external interface 6 is connected to the community heating water supply pipeline, the third pipeline external interface 7 is connected to the twelfth pipeline external interface 26 in the water treatment module M3, the fourth pipeline external interface 8 is connected to the geothermal reinjection well pipeline, the fifth pipeline external interface 9 is connected to the eighth pipeline external interface 15 in the secondary heating and reuse module M2, and the sixth pipeline external interface 10 is connected to the seventh pipeline external interface 14 in the secondary heating and reuse module M2.

[0038] like Figure 3 As shown, the secondary temperature increase and reuse module M2 includes: a water source heat pump unit 11, a main intermediate water circulation pump 12 and a spare intermediate water circulation pump 13; the main intermediate water circulation pump 12 and the spare intermediate water circulation pump 13 are connected in parallel and connected to the water source heat pump unit 11; the equipment is fixed on the steel frame foundation to form the secondary temperature increase and reuse module M2. The secondary temperature increase and reuse module M2 also includes: a seventh pipeline external interface 14, an eighth pipeline external interface 15, a ninth pipeline external interface 16 and a tenth pipeline external interface 17; the seventh pipeline external interface 14 is connected to the sixth pipeline external interface 10 in the heat exchange and circulation module M1, the eighth pipeline external interface 15 is connected to the fifth pipeline external interface 9 in the heat exchange and circulation module M1, the ninth pipeline external interface 16 is connected to the community heating return water pipeline, and the tenth pipeline external interface 17 is connected to the community heating water supply pipeline.

[0039] like Figure 4As shown, the water treatment module M3 includes: a cyclone desander 19, a decontaminant 20, a pressure pump 21, a primary water treatment device A22, a primary water treatment device B23, a secondary water treatment device C24 and a secondary water treatment device D25; the cyclone desander 19, the decontaminant 20 and the pressure pump 21 are connected in sequence; the primary water treatment device A22 is connected in parallel with the primary water treatment device B23, and is connected to the pressure pump 21; the secondary water treatment device C24 is connected to the primary water treatment device A22; the secondary water treatment device D25 is connected to the primary water treatment device B23; the equipment is fixed on the steel frame foundation to form the water treatment module M3. The water treatment module M3 also includes the eleventh pipeline external interface 18 and the twelfth pipeline external interface 26; the eleventh pipeline external interface 18 is connected to the geothermal well pipeline, and the twelfth pipeline external interface 26 is connected to the third pipeline external interface 7 of the heat exchange and circulation module M1.

[0040] like Figure 5 As shown, the automatic water replenishment module M4 includes: softening water equipment 28, water storage tank 27, main water replenishment pump 29 and spare water replenishment pump 30; the main water replenishment pump 29, spare water replenishment pump 30 and softening water equipment 28 are respectively connected to the water storage tank 27; the equipment is fixed on the steel frame foundation to form the automatic water replenishment module M4. The automatic water replenishment module M4 also includes a thirteenth pipeline external interface 31; the thirteenth pipeline external interface 31 is connected to the community heating return water pipeline.

[0041] like Figure 6 As shown, the power distribution and automatic control module M5 includes: an incoming line cabinet 32, an outgoing line cabinet 33, a first frequency conversion starting cabinet 34, a second frequency conversion starting cabinet 35, a third frequency conversion starting cabinet 36, a fourth frequency conversion starting cabinet 37 and an automatic control cabinet 38; the first frequency conversion starting cabinet 34 is connected to the secondary side main circulation pump 3 and the secondary side standby circulation pump 4 in the heat exchange and circulation module M1 through power cables; the second frequency conversion starting cabinet 35 is connected to the main intermediate water circulation pump 12 and the standby intermediate water circulation pump 1 in the secondary temperature raising and recycling module M2 through power cables 3; the third frequency conversion starter cabinet 36 is connected to the booster pump 21 in the water treatment module M3 through a power cable; the fourth frequency conversion starter cabinet 37 is connected to the main water supply pump 29 and the standby water supply pump 30 in the automatic water supply module M4 through a power cable; the incoming line cabinet 32, the outgoing line cabinet 33, the first frequency conversion starter cabinet 34, the second frequency conversion starter cabinet 35, the third frequency conversion starter cabinet 36, the fourth frequency conversion starter cabinet 37 and the automatic control cabinet 38 are connected through power cables; the equipment is fixed on the steel frame foundation to form a power distribution and automatic control module M5. The equipment is connected through power cables and signal transmission lines.

[0042] Example 2

[0043] The present invention provides a method for installing a modular geothermal heating system, comprising the following steps:

[0044] The geothermal heating system is a closed circulation system consisting of a cyclone desander 19, a decontaminant 20, a booster pump 21, a plate heat exchanger, a water source heat pump unit 11, a circulation pump, a water supply pump, a water storage tank 27, a softening water device 28, a primary water treatment device, a secondary water treatment device, valves, instruments, electronic controls and other components.

[0045] The equipment in the geothermal heating system is optimized and designed according to the process technology, and the solidified structure forms a modular geothermal heating system. The system consists of five modules, namely heat exchange and circulation module M1, secondary temperature increase and reuse module M2, water treatment module M3, automatic water replenishment module M4, power distribution and automatic control module M5.

[0046] The equipment in the heat exchange and circulation module M1, the secondary temperature raising and reuse module M2, the water treatment module M3, the automatic water replenishment module M4 and the power distribution and automatic control module M5 are assembled in the factory workshop with their corresponding steel frame foundations, and each module is debugged and tested;

[0047] The heat exchange and circulation module M1, the secondary temperature raising and recycling module M2, the water treatment module M3, the automatic water replenishment module M4 and the power distribution and automatic control module M5 arrive at the site and are connected into a system.

[0048] The steel frame foundation is provided with connecting bolt fixing holes, and the equipment in the heat exchange and circulation module M1, the secondary temperature raising and recycling module M2, the water treatment module M3, the automatic water replenishment module M4 and the power distribution and automatic control module M5 and their corresponding steel frame foundations are fixedly connected with screws; the steel frame foundation and the foundation are fixedly connected with expansion screws.

[0049] The pipe interfaces of the heat exchange and circulation module M1, the secondary temperature raising and recycling module M2, the water treatment module M3 and the automatic water replenishment module M4 are all flange interfaces.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A method for installing a modular geothermal heating system, characterized in that: The modular geothermal heating system includes the following steps: The equipment in the heat exchange and circulation module (M1), secondary temperature raising and reuse module (M2), water treatment module (M3), automatic water replenishment module (M4) and power distribution and automatic control module (M5) are assembled with their corresponding steel frame foundations in the factory workshop, and each module is debugged and tested; The heat exchange and circulation module (M1), the secondary temperature raising and recycling module (M2), the water treatment module (M3), the automatic water replenishment module (M4) and the power distribution and automatic control module (M5) are connected after arriving at the site; The modular geothermal heating system includes: heat exchange and circulation module (M1), secondary temperature raising and reuse module (M2), water treatment module (M3), automatic water replenishment module (M4), power distribution and automatic control module (M5) and steel frame foundation; The heat exchange and circulation module (M1), the secondary temperature raising and recycling module (M2), the water treatment module (M3) and the automatic water replenishment module (M4) are all provided with pipeline interfaces, wherein the heat exchange and circulation module (M1) is connected to the secondary temperature raising and recycling module (M2) via the pipeline interface, and the heat exchange and circulation module (M1) is connected to the water treatment module (M3) via the pipeline interface; The heat exchange and circulation module (M1), the secondary temperature raising and recycling module (M2), the water treatment module (M3) and the automatic water replenishment module (M4) are all connected to the power distribution and automatic control module (M5) via power cables; The heat exchange and circulation module (M1), the secondary temperature raising and recycling module (M2), the water treatment module (M3), the automatic water replenishment module (M4), and the power distribution and automatic control module (M5) are respectively arranged on a steel frame foundation; The heat exchange and circulation module (M1) comprises: a primary plate heat exchanger (1), a secondary plate heat exchanger (2), a secondary side main circulation pump (3) and a secondary side standby circulation pump (4); the primary plate heat exchanger (1) is connected to the secondary plate heat exchanger (2), the secondary side main circulation pump (3) and the secondary side standby circulation pump (4) are connected in parallel and connected to the primary plate heat exchanger (1); the primary plate heat exchanger (1), the secondary plate heat exchanger (2), the secondary side main circulation pump (3) and the secondary side standby circulation pump (4) are fixed on a steel frame foundation to form the heat exchange and circulation module (M1); The secondary temperature raising and recycling module (M2) comprises: a water source heat pump unit (11), a main intermediate water circulation pump (12) and a spare intermediate water circulation pump (13); the main intermediate water circulation pump (12) and the spare intermediate water circulation pump (13) are connected in parallel and connected to the water source heat pump unit (11); the water source heat pump unit (11), the main intermediate water circulation pump (12) and the spare intermediate water circulation pump (13) are fixed on a steel frame foundation to form the secondary temperature raising and recycling module (M2); The water treatment module (M3) comprises: a cyclone desander (19), a decontaminant (20), a booster pump (21), a primary water treatment device A (22), a primary water treatment device B (23), a secondary water treatment device C (24) and a secondary water treatment device D (25); the cyclone desander (19), the decontaminant (20) and the booster pump (21) are connected in sequence; the primary water treatment device A (22) is connected in parallel with the primary water treatment device B (23) and is connected to the booster pump (21). 1) connection; the secondary water treatment device C (24) is connected to the primary water treatment device A (22); the secondary water treatment device D (25) is connected to the primary water treatment device B (23); the cyclone desander (19), the decontaminant remover (20), the booster pump (21), the primary water treatment device A (22), the primary water treatment device B (23), the secondary water treatment device C (24) and the secondary water treatment device D (25) are fixed on a steel frame foundation to form a water treatment module (M3); The automatic water replenishment module (M4) comprises: a softening water device (28), a water storage tank (27), a main water replenishment pump (29) and a backup water replenishment pump (30); the main water replenishment pump (29), the backup water replenishment pump (30) and the softening water device (28) are respectively connected to the water storage tank (27); the softening water device (28), the water storage tank (27), the main water replenishment pump (29) and the backup water replenishment pump (30) are fixed on a steel frame foundation to form the automatic water replenishment module (M4); The power distribution and automatic control module (M5) comprises: an incoming line cabinet (32), an outgoing line cabinet (33), a first frequency conversion starting cabinet (34), a second frequency conversion starting cabinet (35), a third frequency conversion starting cabinet (36), a fourth frequency conversion starting cabinet (37) and an automatic control cabinet (38); the first frequency conversion starting cabinet (34) is connected to the secondary side main circulation pump (3) and the secondary side standby circulation pump (4) in the heat exchange and circulation module (M1) through power cables; the second frequency conversion starting cabinet (35) is connected to the main intermediate water circulation pump (12) and the standby intermediate water circulation pump (13) in the secondary temperature raising and recycling module (M2) through power cables. ); the third frequency conversion starting cabinet (36) is connected to the booster pump (21) in the water treatment module (M3) through a power cable; the fourth frequency conversion starting cabinet (37) is connected to the main water supply pump (29) and the standby water supply pump (30) in the automatic water supply module (M4) through a power cable; the incoming line cabinet (32), the outgoing line cabinet (33), the first frequency conversion starting cabinet (34), the second frequency conversion starting cabinet (35), the third frequency conversion starting cabinet (36), the fourth frequency conversion starting cabinet (37) and the automatic control cabinet (38) are connected through power cables and fixed on a steel frame foundation to form a power distribution and automatic control module (M5).

2. The method for installing a modular geothermal heating system according to claim 1, characterized in that: The steel frame foundation is provided with connection bolt fixing holes, and the equipment in the heat exchange and circulation module (M1), the secondary temperature raising and recycling module (M2), the water treatment module (M3), the automatic water replenishment module (M4) and the power distribution and automatic control module (M5) and their corresponding steel frame foundations are fixedly connected by screws; the steel frame foundation and the foundation are fixedly connected by expansion screws.

3. The method for installing a modular geothermal heating system according to claim 1, characterized in that: The pipe interfaces of the heat exchange and circulation module (M1), the secondary temperature raising and recycling module (M2), the water treatment module (M3) and the automatic water replenishment module (M4) are all flange interfaces.

Images