Filtering device for geothermal well water source

Abstract

The utility model relates to a filtering device of a geothermal well water source. Comprising a first filtering assembly, a second filtering assembly, a final filtering assembly, a series-parallel connection assembly and a water outlet loop assembly. The series-parallel assembly comprises a first series-parallel tee joint and a second series-parallel tee joint, a third series-parallel branch pipe and a third series-parallel valve are arranged between the first series-parallel tee joint and the second series-parallel tee joint, a first series-parallel branch pipe and a second series-parallel branch pipe are arranged on the first series-parallel tee joint, the first series-parallel branch pipe is communicated with the first filter assembly and provided with a first series-parallel valve, and the second series-parallel branch pipe is communicated with the second filter assembly and provided with a second series-parallel valve; a fourth series-parallel branch pipe and a fifth series-parallel branch pipe are arranged on the second series-parallel tee joint, the fifth series-parallel branch pipe is communicated with the first filter assembly and provided with a fifth series-parallel valve, and the fourth series-parallel branch pipe is communicated with the second filter assembly and provided with a fourth series-parallel valve; the filtering assembly I comprises a filtering mechanism I, a filtering valve I, a filtering tee joint I and a filtering water outlet pipe I; the first filtering mechanism comprises a filtering water inlet shell, a filtering water outlet shell, a filtering barrel shell and a filtering net barrel, and a sewage outlet and a sewage valve are arranged on the filtering water inlet shell. According to the utility model, the switching of different connection relations among a plurality of filtering structures can be realized, so that series connection or parallel connection is realized, and the filtering assembly can be backwashed without frequently replacing the filtering assembly.

Description

Technical Field

[0001] This utility model belongs to the field of geothermal energy technology, and in particular relates to a filtration device for geothermal well water. Background Technology

[0002] Geothermal energy, a form of thermal energy stored within the Earth, is characterized by its large reserves, wide distribution, green and low-carbon nature, recyclability, and stability and reliability. It is a practical and competitive clean energy source. With the rapid depletion of non-renewable resources such as coal, oil, and natural gas, geothermal energy, as a renewable and clean energy source, will gradually replace these resources. Geothermal energy can be used for various purposes, including power generation, heating, cooling, agriculture, medical applications, hot springs, and aquaculture. This technology utilizes geothermal energy through a water source heat pump system.

[0003] Ground source heat pumps utilize low-grade heat energy resources formed by absorbing solar and geothermal energy from shallow water sources on the Earth's surface, such as groundwater, rivers, and lakes. Employing the heat pump principle, they transfer low-grade heat energy to higher-grade heat energy with a small amount of high-grade electrical energy input. The working principle of a ground source heat pump unit is to transfer heat from a building to the ground source in summer; in winter, it extracts energy from the relatively constant-temperature water source, using air or water as a refrigerant to raise the temperature before delivering it to the building. During geothermal water extraction operations, large amounts of solid pollutants such as silt cause serious pollution to the geothermal resources and easily lead to severe wear and blockage of extraction pipelines and equipment. This severely affects the efficiency and stability of geothermal resource extraction operations and increases the cost of current geothermal extraction operations. Therefore, it is necessary to equip such geothermal extraction systems with filtration devices.

[0004] Traditional filtration devices use a single filtration structure or multiple filtration structures in series for continuous water treatment. However, these methods can only perform conventional filtration of geothermal water sources. The filter material also needs to be replaced frequently. When the filtration volume is large, the filter elements need to be replaced frequently. It is also not convenient to self-clean through backwashing. Therefore, there is an urgent need to design a filtration device for geothermal well water sources to solve the above problems. Utility Model Content

[0005] This invention provides a geothermal well water filtration device with a reasonable structural design to solve the technical problems existing in the prior art. This invention allows for switching between different connection relationships between multiple filtration structures, thereby achieving secondary filtration through series connection or improved filtration effect through parallel connection. It also allows for backwashing and self-cleaning of the filtration components, facilitating continuous use without frequent replacement of the filtration components.

[0006] The technical solution adopted by this utility model to solve the technical problems existing in the prior art is as follows: A filtration device for geothermal well water source includes a filter assembly 1, a filter assembly 2, and a final filter assembly arranged in parallel. The filter assembly 2 is connected to the final filter assembly. A series-parallel connection assembly is connected between the filter assembly 1 and the filter assembly 2. It also includes a water outlet circuit assembly connected to the outlets of the filter assembly 1, the filter assembly 2, and the final filter assembly. The series-parallel connection assembly includes a series-parallel tee 1 and a series-parallel tee 2 arranged opposite to each other. A series-parallel branch pipe 3 is connected between the series-parallel tee 1 and the series-parallel tee 2 and a series-parallel valve 3 is installed thereon. Series-parallel branch pipe 1 and series-parallel branch pipe 2 are respectively installed at the other two ports of the series-parallel tee 1. The series-parallel branch pipe 1 is connected to the inlet of the filter assembly 1 and a series-parallel valve 1 is installed thereon. The series-parallel branch pipe 2 is connected to the inlet of the filter assembly 2. The inlet is connected and equipped with a series-parallel valve 2; the other two ports of the series-parallel tee 2 are respectively equipped with a series-parallel branch pipe 4 and a series-parallel branch pipe 5. The series-parallel branch pipe 5 is connected to the outlet of the filter assembly 1 and is equipped with a series-parallel valve 5. The series-parallel branch pipe 4 is connected to the outlet of the filter assembly 2 and is equipped with a series-parallel valve 4. The filter assembly 1 includes a filter mechanism 1. A filter valve 1 and a filter tee 1 are installed at the inlet end of the filter mechanism 1. A filter valve 1, a filter tee 1, and a filter outlet pipe 1 are installed at the outlet end of the filter mechanism 1. The filter mechanism 1 includes a filter inlet shell, a filter outlet shell, and a filter cylinder shell that are connected in pairs. A cylinder shell end cap is installed at the top opening of the filter cylinder shell. It also includes a filter screen cylinder installed inside the filter cylinder shell. A sewage outlet is provided at the bottom of the filter inlet shell, facing the filter screen cylinder. A sewage valve is installed on the sewage outlet.

[0007] The advantages and positive effects of this utility model are as follows: This utility model provides a filtration device for geothermal well water sources. Through the configured filter assembly one and filter assembly two, the transmission and filtration of hot water source can be realized. Through the configured series-parallel connection assembly, different connection relationships between filter assembly one and filter assembly two can be switched. Filter assembly one and filter assembly two can be connected in series for secondary filtration, or connected in parallel to increase the filtration effect. Through the configured final filter assembly, while ensuring the transmission and filtration of geothermal water source, backwashing and self-cleaning operations can be performed on filter assembly one and filter assembly two, facilitating continuous use without frequent shutdowns to replace filter assemblies.

[0008] Preferably: a sealing plate is welded to the right end of the filter inlet shell, and a liquid inlet cone is fixedly connected to the left end outlet. A ring-shaped filter screen mounting plate and an inlet shell outlet are fixedly connected to the upper end of the filter inlet shell. The filter cylinder shell has a three-way structure, and the inlet of the filter cylinder shell is connected to the outlet of the inlet shell. The filter outlet shell has a three-way structure, with a liquid outlet cone installed at the right end outlet of the filter outlet shell. The middle end of the filter cylinder shell is the outlet of the filter cylinder shell, and the middle end of the filter outlet shell is the inlet of the filter outlet shell. An arc-shaped connecting pipe connects the cylinder shell outlet and the outlet of the filter outlet shell.

[0009] Preferably, the filter assembly 2 includes a filter mechanism 2, a filter valve 2 and a filter 3-way 2 are installed at the inlet end of the filter mechanism 2, a filter valve 2 and a filter 4-way are installed at the outlet end of the filter mechanism 2, and a filter outlet pipe 2 connected to the outlet circuit assembly is installed at the outlet of the filter 4-way.

[0010] Preferably, the end-filter assembly includes a Y-type filter element, an end-filter valve and an end-inlet pipe are installed at the inlet end of the Y-type filter element, the end-inlet pipe is connected to the filter tee 2, and an end-outlet pipe and an end-filter valve are installed at the outlet end of the Y-type filter element, the end-outlet pipe is connected to the filter 4.

[0011] Preferably, the water outlet circuit assembly includes a water outlet valve one connected to the port of the filter water outlet pipe one and a water outlet valve two connected to the port of the filter water outlet pipe two, and also includes a water outlet tee installed at the port of the water outlet valve one, with a water outlet circuit connected between the water outlet tee and the water outlet valve two.

[0012] Preferably, it also includes a main inlet pipe installed at the inlet end of the filter assembly one, and a main outlet pipe installed at the outlet end of the outlet circuit assembly; several support legs are installed on the filter assembly one, the series-parallel assembly, the filter assembly two, the end filter assembly and the outlet circuit assembly.

[0013] Preferably, the structure of filter mechanism two is the same as that of filter mechanism one. Attached Figure Description

[0014] Figure 1 This is a top view of the structure of this utility model;

[0015] Figure 2 This is a three-dimensional structural schematic diagram of the present invention;

[0016] Figure 3 This is a cross-sectional structural schematic diagram of the filter mechanism one in this utility model.

[0017] In the diagram: 1. Main inlet pipe; 2. Filter assembly 1; 2-1. Filter tee 1; 2-2. Filter valve 1; 2-3. Filter mechanism 1; 2-3-1. Liquid outlet conical port; 2-3-2. Filter outlet shell; 2-3-3. Sewage outlet; 2-3-4. Sewage valve; 2-3-5. Filter inlet shell; 2-3-6. Sealing plate; 2-3-7. Filter screen mounting plate; 2-3-8. Liquid inlet conical port; 2-3-9. Inlet shell outlet; 2-3-10. Filter screen cylinder; 2-3-11. Filter cylinder shell; 2-3-12. Shell end cap; 2-3-13. Shell outlet; 2-3-14. Arc-shaped connecting pipe; 2-3-15. Outlet shell inlet; 2-4. Filter outlet pipe 1; 3. Series-parallel assembly; 3-1. Series-parallel valve 1; 3-2. Series-parallel branch pipe 1 3-3. Series-parallel tee one; 3-4. Series-parallel valve two; 3-5. Series-parallel branch pipe two; 3-6. Series-parallel branch pipe three; 3-7. Series-parallel valve three; 3-8. Series-parallel valve four; 3-9. Series-parallel branch pipe four; 3-10. Series-parallel tee two; 3-11. Series-parallel valve five; 3-12. Series-parallel branch pipe five; 4. Filter assembly two; 4-1. Filter tee two; 4-2. Filter valve two; 4-3. Filter mechanism two; 4-4. Filter outlet pipe two; 4-5. Filter four-way; 5. End filter assembly; 5-1. End inlet pipe; 5-2. End filter valve; 5-3. Y-type filter element; 5-4. End outlet pipe; 6. Outlet circuit assembly; 6-1. Outlet valve one; 6-2. Outlet tee; 6-3. Outlet circuit; 6-4. Outlet valve two; 7. Outlet main pipe; 8. Support leg. Detailed Implementation

[0018] To further understand the invention content, features, and effects of this utility model, the following embodiments are provided in detail:

[0019] Please see Figure 1 and Figure 2 The geothermal well water source filtration device of this utility model includes a first filter assembly 2, a second filter assembly 4 and a final filter assembly 5 arranged in parallel. The second filter assembly 4 is connected to the final filter assembly 5. A series-parallel connection assembly 3 is connected between the first filter assembly 2 and the second filter assembly 4. It also includes a water outlet circuit assembly 6 connected to the water outlet of the first filter assembly 2, the second filter assembly 4 and the final filter assembly 5.

[0020] The series-parallel assembly 3 includes a series-parallel tee 1 3-3 and a series-parallel tee 2 3-10 arranged opposite to each other. A series-parallel branch pipe 3-6 is connected between the series-parallel tee 1 3-3 and the series-parallel tee 2 3-10 and a series-parallel valve 3-7 is installed thereon. A series-parallel branch pipe 1 3-2 and a series-parallel branch pipe 2 3-5 are installed at the other two ports of the series-parallel tee 1 3-3, respectively. The series-parallel branch pipe 1 3-2 is connected to the inlet of the filter assembly 2 and is equipped with a series-parallel valve 3-5. 1. The second parallel branch pipe 3-5 is connected to the inlet of the filter assembly 4 and is equipped with the second parallel valve 3-4; the other two ports of the second parallel tee 3-10 are respectively equipped with the fourth parallel branch pipe 3-9 and the fifth parallel branch pipe 3-12. The fifth parallel branch pipe 3-12 is connected to the outlet of the filter assembly 2 and is equipped with the fifth parallel valve 3-11. The fourth parallel branch pipe 3-9 is connected to the outlet of the filter assembly 4 and is equipped with the fourth parallel valve 3-8.

[0021] like Figure 1 and Figure 2 As shown, the above-mentioned filter assembly 2 includes a filter mechanism 2-3. A filter valve 2-2 and a filter tee 2-1 are installed at the water inlet end of the filter mechanism 2-3, and a filter valve 2-2, a filter tee 2-1 and a filter outlet pipe 2-4 are installed at the water outlet end of the filter mechanism 2-3.

[0022] See further Figure 3 The aforementioned filtration mechanism 2-3 includes a filter inlet shell 2-3-5, a filter outlet shell 2-3-2, and a filter cylinder shell 2-3-11 connected in pairs. A cylinder shell end cap 2-3-12 is installed at the top opening of the filter cylinder shell 2-3-11. It also includes a filter screen cylinder 2-3-10 installed inside the filter cylinder shell 2-3-11. A sewage outlet 2-3-3 is provided at the bottom of the filter inlet shell 2-3-5, facing the filter screen cylinder 2-3-10. A sewage valve 2-3-4 is installed on the sewage outlet 2-3-3.

[0023] A sealing plate 2-3-6 is welded to the right end of the filter inlet shell 2-3-5, and an inlet cone-shaped port 2-3-8 is fixed to the left end outlet. A ring-shaped filter screen mounting plate 2-3-7 is fixed to the upper end of the filter inlet shell 2-3-5, and an inlet shell outlet 2-3-9 is also fixed to it. The filter screen cylinder 2-3-10 is installed on the filter screen mounting plate 2-3-7. The filter housing 2-3-11 has a three-way structure, with the inlet of the filter housing 2-3-11 connected to the outlet of the inlet housing 2-3-9. The filter outlet housing 2-3-2 also has a three-way structure, with a liquid outlet cone 2-3-1 installed at the right end of the outlet of the filter outlet housing 2-3-2. The middle port of the filter housing 2-3-11 is the outlet 2-3-13, and the middle port of the filter outlet housing 2-3-2 is the inlet 2-3-15. An arc-shaped connecting pipe 2-3-14 connects the outlet 2-3-13 and the inlet 2-3-15.

[0024] The working principle of the filtration mechanism 2-3 is as follows: geothermal water enters the filter inlet shell 2-3-5 through the inlet cone 2-3-8, then enters the filter screen cylinder 2-3-10 through the middle of the filter screen mounting plate 2-3-7. The filter screen cylinder 2-3-10 traps solid impurities. The filtered geothermal water then flows from the cylinder outlet 2-3-13 into the arc-shaped connecting pipe 2-3-14, then enters the filter outlet shell 2-3-2 through the outlet shell inlet 2-3-15, and finally exits through the outlet cone... Outflow is from outlet 2-3-1; when cleaning of filter cylinder 2-3-10 is required, close filter valves 2-2 on both sides of filter mechanism 2-3, and flush high-pressure water into filter mechanism 2-3 through sewage valve 2-3-4 and sewage outlet 2-3-3 to backwash filter cylinder 2-3-10, preventing impurities from adhering to filter cylinder 2-3-10 and affecting its filtration effect. After backwashing, sewage also flows out through sewage valve 2-3-4. The backwashing principle of filter mechanism 4-3 is the same as that of filter mechanism 2-3.

[0025] Filter assembly 2 4 includes filter mechanism 2 4-3. A filter valve 2 4-2 and a filter tee 2 4-1 are installed at the inlet end of filter mechanism 2 4-3. A filter valve 2 4-2 and a filter four-way 4-5 are installed at the outlet end of filter mechanism 2 4-3. A filter outlet pipe 2 4-4, connected to the outlet circuit assembly 6, is installed at the outlet of filter four-way 4-5. The structure of filter mechanism 2 4-3 is identical to that of filter mechanism 1 2-3.

[0026] The final filter assembly 5 includes a Y-type filter element 5-3. A final filter valve 5-2 and a final inlet pipe 5-1 are installed at the inlet end of the Y-type filter element 5-3. The final inlet pipe 5-1 is connected to the filter tee 2 4-1. A final outlet pipe 5-4 and a final filter valve 5-2 are installed at the outlet end of the Y-type filter element 5-3. The final outlet pipe 5-4 is connected to the filter four-way 4-5.

[0027] In addition, the above-mentioned water outlet circuit assembly 6 includes a water outlet valve 6-1 connected to the port of the filter water outlet pipe 2-4 and a water outlet valve 6-4 connected to the port of the filter water outlet pipe 4-4. It also includes a water outlet tee 6-2 installed at the port of the water outlet valve 6-1. A water outlet circuit 6-3 is connected between the water outlet tee 6-2 and the water outlet valve 6-4.

[0028] like Figure 1 and Figure 2 As shown, this embodiment also includes a main inlet pipe 1 installed at the inlet end of the filter assembly 2, and a main outlet pipe 7 installed at the outlet end of the outlet circuit assembly 6; several support legs 8 are installed on the filter assembly 2, the series-parallel assembly 3, the filter assembly 4, the final filter assembly 5 and the outlet circuit assembly 6.

[0029] Working principle:

[0030] This utility model can filter geothermal water sources by connecting multiple filter components in series or in parallel, depending on the situation.

[0031] When filter assembly 1 (2) and filter assembly 2 (4) need to be connected in series, it is necessary to ensure that all filter valves 1 (2-2) in filter assembly 1 (2) and all filter valves 2 (4-2) in filter assembly 2 (4) are in the open state, all end filter valves 5 (5-2) in the end filter assembly 5 are in the closed state, and the outlet valve 1 (6-1) in the outlet circuit assembly 6 is in the closed state and the outlet valve 2 (6-4) is in the open state; at the same time, it is necessary to ensure that the series-parallel valves 1 (3-1) and 4 (3-8) in the series-parallel assembly 3 are in the closed state, and the series-parallel valves 5 (3-11), 3 (3-7), and 2 (3-4) are in the open state, so that the geothermal water source flowing into the filter device through the inlet main pipe 1 passes through the filter assembly 1 (2) and filter assembly 2 (4) and then flows into the outlet main pipe 7 through the outlet circuit assembly 6;

[0032] When filter assembly 1 (2) and filter assembly 2 (4) need to be connected in parallel, it is necessary to ensure that each filter valve 1 (2-2) in filter assembly 1 (2) and each filter valve 2 (4-2) in filter assembly 2 (4) are in the open state, each end filter valve 5 (5-2) in the end filter assembly 5 is in the closed state, and the outlet valve 1 (6-1) and outlet valve 2 (6-4) in the outlet circuit assembly 6 are in the open state; at the same time, the series-parallel valve 3 (3-7), series-parallel valve 4 (3-8), and series-parallel valve 5 (3-11) in the series-parallel assembly 3 are in the closed state, and the series-parallel valve 1 (3-1) and series-parallel valve 2 (3-4) are in the open state, so that the geothermal water flowing into the filter device through the inlet main pipe 1 is filtered by the parallel-connected filter assembly 1 (2) and filter assembly 2 (4) and then flows into the outlet main pipe 7 through the outlet circuit assembly 6;

[0033] When backwashing is required for filter assembly 1 (2) and filter assembly 2 (4), all filter valves 1 (2-2) in filter assembly 1 (2) and all filter valves 2 (4-2) in filter assembly 2 (4) must be closed. Also, the series-parallel valves 3 (3-7), 4 (3-8), and 5 (3-11) in the series-parallel assembly 3 must be closed. The final filter valve 5 (5-2) in the final filter assembly 5 must be opened, allowing geothermal water to flow in from the inlet main pipe 1, be filtered by the final filter assembly 5, flow into the outlet circuit assembly 6, and finally flow out through the outlet main pipe 7. Simultaneously, backwashing is performed on filter mechanism 1 (2-3) and filter mechanism 2 (4-3). The specific backwashing operation is as described above and will not be repeated here.

Claims

1. A filter device for geothermal well water sources, characterized by: The system includes a filter assembly 1 (2), a filter assembly 2 (4), and a final filter assembly (5) arranged in parallel. The filter assembly 2 (4) is connected to the final filter assembly (5). A series-parallel connection assembly (3) is connected between the filter assembly 1 (2) and the filter assembly 2 (4). The system also includes an outlet circuit assembly (6) connected to the outlets of the filter assembly 1 (2), the filter assembly 2 (4), and the final filter assembly (5). The series-parallel connection assembly (3) includes a series-parallel tee 1 (3-3) and a series-parallel tee 2 (3-10) arranged opposite to each other. A series-parallel branch pipe three (3-6) is connected between the two ends of the series-parallel tee (3-3) and a series-parallel valve three (3-7) is installed thereon. A series-parallel branch pipe one (3-2) and a series-parallel branch pipe two (3-5) are installed at the other two ends of the series-parallel tee (3-3). A series-parallel branch pipe one (3-2) is connected to the inlet of filter assembly one (2) and a series-parallel valve one (3-1) is installed thereon. A series-parallel branch pipe two (3-5) is connected to the inlet of filter assembly two (4) and a series-parallel valve two (3-4) is installed thereon. A series-parallel branch pipe four (3-9) and a series-parallel branch pipe five (3-7) are installed at the other two ends of the series-parallel tee (3-10). -12), the parallel branch pipe five (3-12) is connected to the outlet of the filter assembly one (2) and is equipped with the parallel valve five (3-11), the parallel branch pipe four (3-9) is connected to the outlet of the filter assembly two (4) and is equipped with the parallel valve four (3-8); the filter assembly one (2) includes the filter mechanism one (2-3), the filter valve one (2-2) and the filter tee one (2-1) are installed at the inlet end of the filter mechanism one (2-3), and the filter valve one (2-2), the filter tee one (2-1) and the filter outlet pipe one (2-4) are installed at the outlet end of the filter mechanism one (2-3); The filter unit (2-3) includes a filter inlet shell (2-3-5), a filter outlet shell (2-3-2), and a filter cylinder shell (2-3-11) connected in pairs. A cylinder shell end cap (2-3-12) is installed at the top opening of the filter cylinder shell (2-3-11). It also includes a filter screen cylinder (2-3-10) installed inside the filter cylinder shell (2-3-11). A sewage outlet (2-3-3) is provided at the bottom of the filter inlet shell (2-3-5) facing the filter screen cylinder (2-3-10). A sewage valve (2-3-4) is installed on the sewage outlet (2-3-3).

2. The filtration device for geothermal well water source as described in claim 1, characterized in that: A sealing plate (2-3-6) is welded to the right end of the filter inlet shell (2-3-5), and an inlet cone-shaped port (2-3-8) is fixed to the left end outlet. A ring-shaped filter screen mounting plate (2-3-7) and an inlet shell outlet (2-3-9) are fixed to the upper end of the filter inlet shell (2-3-5). The filter cylinder shell (2-3-11) has a three-way structure, and the inlet of the filter cylinder shell (2-3-11) is connected to the inlet shell outlet (2-3-9). The filtered water... The shell (2-3-2) has a three-way structure. A liquid outlet cone (2-3-1) is installed at the right end of the filter outlet shell (2-3-2). The middle port of the filter cylinder shell (2-3-11) is the cylinder shell outlet (2-3-13), and the middle port of the filter outlet shell (2-3-2) is the outlet shell inlet (2-3-15). An arc-shaped connecting pipe (2-3-14) connects the cylinder shell outlet (2-3-13) and the outlet shell inlet (2-3-15).

3. The geothermal well water source filter apparatus of claim 1 wherein: The filter assembly 2 (4) includes a filter mechanism 2 (4-3), a filter valve 2 (4-2) and a filter 3-way 2 (4-1) are installed at the water inlet end of the filter mechanism 2 (4-3), a filter valve 2 (4-2) and a filter 4-way 4 (4-5) are installed at the water outlet end of the filter mechanism 2 (4-3), and a filter outlet pipe 2 (4-4) connected to the water outlet circuit assembly (6) is installed at the water outlet of the filter 4-way 4 (4-5).

4. The geothermal well water source filter apparatus of claim 3 wherein: The end filter assembly (5) includes a Y-type filter element (5-3). An end filter valve (5-2) and an end inlet pipe (5-1) are installed at the inlet end of the Y-type filter element (5-3). The end inlet pipe (5-1) is connected to the filter tee (4-1). An end outlet pipe (5-4) and an end filter valve (5-2) are installed at the outlet end of the Y-type filter element (5-3). The end outlet pipe (5-4) is connected to the filter quat (4-5).

5. The geothermal well water source filter apparatus of claim 3 wherein the outlet water is filtered. The loop assembly (6) includes a first outlet valve (6-1) connected to the port of the first filter outlet pipe (2-4) and a second outlet valve (6-4) connected to the port of the second filter outlet pipe (4-4). It also includes an outlet tee (6-2) installed at the port of the first outlet valve (6-1). An outlet loop (6-3) is connected between the outlet tee (6-2) and the second outlet valve (6-4). ​ 6. The geothermal well water source filter apparatus of claim 1 wherein: It also includes an inlet manifold (1) installed at the inlet end of the filter assembly (2), and an outlet manifold (7) installed at the outlet end of the outlet circuit assembly (6); several legs (8) are installed on the filter assembly (2), the series-parallel assembly (3), the filter assembly (4), the end filter assembly (5) and the outlet circuit assembly (6).

7. The geothermal well water source filter apparatus of claim 3 wherein: The structure of filter mechanism two (4-3) is the same as that of filter mechanism one (2-3).

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