Shaftway isolation heat exchange mechanism for geothermal energy development

Abstract

The utility model relates to the technical field, in particular to a hoistway isolation heat exchange mechanism for geothermal energy development. Comprising a shell, an isolation block, a gas-liquid separator and an isolation layer, the isolation block is arranged on the side face of the shell, the gas-liquid separator is arranged below the isolation block, the isolation layer is arranged in the shell, a first heat exchange structure is arranged at the lower end of the isolation layer, and a second heat exchange structure is arranged at the upper end of the isolation layer. A filtering structure is arranged in the isolation block; after cold water is heated for the first time through a geothermal water pipe, the cold water enters a second cold water pipe through a water outlet pipe, gas and liquid in geothermal water are separated through a gas-liquid separator at the moment, high-temperature gas enters a gas outlet through a gas outlet pipe and then enters the upper portion of the interior of a shell, and the gas and the liquid in the geothermal water are separated; and the second cold water pipe is secondarily heated, so that cold water is fully heated, and the heat exchange efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of geothermal energy development wells, in particular to a well isolation heat exchange mechanism for geothermal energy development. Background Art

[0002] The existing well isolation heat exchange mechanism for thermal energy development still has certain use defects when in use, such as:

[0003] When the device is in use, the geothermal water contains a large amount of harmful substances and impurities, which causes the water quality to have strong scaling and corrosiveness, easily affecting the service life and normal operation of pipes and equipment. In addition, only one heat exchange is performed between cold water and geothermal water, which may result in the inability to fully heat the cold water, resulting in poor heat exchange effect.

[0004] Therefore, how to provide a well isolation heat exchange mechanism for geothermal energy development has become a technical problem to be solved by those skilled in the art. Utility Model Content

[0005] The technical problem to be solved by the utility model is how to provide a well isolation heat exchange mechanism for geothermal energy development.

[0006] To achieve the above-mentioned purpose, the utility model provides a well isolation heat exchange mechanism for geothermal energy development, comprising: a shell, an isolation block, a gas-liquid separator and an isolation layer, characterized in that an isolation block is arranged on the side of the shell, a gas-liquid separator is arranged below the isolation block, an isolation layer is arranged inside the shell, a first heat exchange structure is arranged at the lower end of the isolation layer, a second heat exchange structure is arranged at the upper end of the isolation layer, and a filter structure is arranged inside the isolation block;

[0007] The filtering structure includes a first filtering layer, a second filtering layer and an activated carbon layer. The first filtering layer is arranged inside the isolation block, the second filtering layer is arranged inside the isolation block, the activated carbon layer is arranged inside the isolation block, and the second filtering layer is located between the first filtering layer and the activated carbon layer.

[0008] Preferably, a geothermal water inlet is provided on the side of the isolation block, a first hydraulic press is provided at the upper end of the isolation block, and the first hydraulic press is located above the first filter layer, a second hydraulic press is provided at the upper end of the isolation block, and the second hydraulic press is located above the second filter layer, a first cleaning block is provided at the lower end of the first hydraulic press, and a second cleaning block is provided at the lower end of the second hydraulic press.

[0009] Preferably, a first baffle and a second baffle are provided on the side of the isolation block, the first baffle is located on the side of the first filter layer, the second baffle is located on the side of the second filter layer, and a third baffle is provided on the upper end of the isolation block.

[0010] Preferably, a water pipe is provided at the lower end of the isolation block, and the other end of the water pipe is connected to a gas-liquid separator, and a geothermal water outlet pipe is provided at one end of the gas-liquid separator.

[0011] Preferably, the first heat exchange structure includes a first water inlet, a first cold water pipe, a cold water outlet pipe, a geothermal water pipe and a geothermal water outlet, the side of the shell is provided with a first water inlet, the top of the geothermal water outlet pipe is provided with a geothermal water pipe, the other end of the geothermal water pipe is provided with a geothermal water outlet, the surface of the geothermal water pipe is provided with a first cold water pipe, one end of the first cold water pipe is connected to the first water inlet, and the other end of the first cold water pipe is provided with a cold water outlet pipe.

[0012] Preferably, the second heat exchange structure includes an air outlet and a second cold water pipe, and the other end of the air outlet pipe is connected to the side of the shell, the inner upper end of the shell is provided with an air outlet, and the upper end of the cold water outlet pipe is provided with a second cold water pipe.

[0013] Preferably, an exhaust device is provided at the upper end of the shell, a first water outlet is provided at the side of the shell, and an air outlet pipe is provided at the upper end of the gas-liquid separator.

[0014] The beneficial effects of the utility model are:

[0015] 1. When the utility model is in use, through the arrangement of the first filter layer, the second filter layer, the activated carbon layer, the first hydraulic press, the second hydraulic press, the first cleaning block and the second cleaning block, the geothermal water first enters the interior of the isolation block through the geothermal water inlet, first filters the larger particles through the first filter layer, then the geothermal water moves to the surface of the second filter layer, and filters the smaller particles inside the geothermal water. At this time, the first hydraulic press and the second hydraulic press can be opened and moved downward at the same time, driving the first cleaning block and the second cleaning block to push downward at the same time, and the impurity particles on the surface of the first filter layer and the second filter layer are cleaned into the cleaning bin at the lower end of the interior of the isolation block, so as to facilitate unified cleaning and prevent the filter layer from being blocked due to excessive impurities. Then, the harmful substances in the geothermal water are adsorbed by the activated carbon layer, so as to achieve the cleaning of the harmful substances and impurities in the geothermal water, reduce the scaling and corrosion in the water quality, and prevent the service life and normal operation of the pipeline and equipment from being affected.

[0016] 2. When the utility model is in use, through the arrangement of the gas-liquid separator, the air outlet pipe, the air outlet, the water outlet pipe and the second cold water pipe, after the cold water is heated for the first time through the geothermal water pipe, it enters the interior of the second cold water pipe through the water outlet pipe. At this time, the gas and liquid in the geothermal water are separated by the gas-liquid separator, so that the high-temperature gas enters the interior of the air outlet through the air outlet pipe, and then enters the upper part of the shell to perform secondary heating on the second cold water pipe, so as to fully heat the cold water and improve the efficiency of heat exchange. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the overall front-view stereoscopic structure of a specific embodiment of the utility model;

[0019] Figure 2 It is a schematic diagram of the overall rear-view stereoscopic structure of a specific embodiment of the utility model;

[0020] Figure 3 It is a schematic diagram of the three-dimensional structure of the cold water outlet pipe and the second cold water pipe installation according to a specific embodiment of the utility model;

[0021] Figure 4 It is a schematic diagram of the three-dimensional structure of the installation of the first cold water pipe and the geothermal water pipe in a specific embodiment of the utility model;

[0022] Figure 5 It is a schematic diagram of the three-dimensional structure of the first filter layer and the second filter layer installed in a specific implementation manner of the utility model.

[0023] Parts Name

[0024] 1. Shell; 2. First water inlet; 3. First water outlet; 4. First cold water pipe; 5. Cold water outlet pipe; 6. Second cold water pipe; 7. Isolation layer; 8. Geothermal water outlet pipe; 9. Gas-liquid separator; 10. Water pipe; 11. Isolation block; 12. Geothermal water inlet; 13. Geothermal water outlet; 14. Geothermal water pipe; 15. First hydraulic press; 16. First cleaning block; 17. Second hydraulic press; 18. Second cleaning block; 19. First filter layer; 20. Second filter layer; 21. Activated carbon layer; 22. First baffle; 23. Second baffle; 24. Third baffle; 25. Exhaust pipe; 26. Exhaust port; 27. Exhaust fan; 28. First heat exchange structure; 29. ​​Second heat exchange structure; 30. Filter structure. DETAILED DESCRIPTION

[0025] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. Preferably, the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0026] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" 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, in the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0027] See also Figures 1 to 5 The utility model provides a well isolation heat exchange mechanism for geothermal energy development, comprising: a shell 1, an isolation block 11, a gas-liquid separator 9 and an isolation layer 7, characterized in that the isolation block 11 is arranged on the side of the shell 1, the gas-liquid separator 9 is arranged below the isolation block 11, the isolation layer 7 is arranged inside the shell 1, the first heat exchange structure 28 is arranged at the lower end of the isolation layer 7, the second heat exchange structure 29 is arranged at the upper end of the isolation layer 7, and the filter structure 30 is arranged inside the isolation block 11;

[0028] The filter structure 30 includes a first filter layer 19, a second filter layer 20 and an activated carbon layer 21. The first filter layer 19 is disposed inside the isolation block 11, the second filter layer 20 is disposed inside the isolation block 11, the activated carbon layer 21 is disposed inside the isolation block 11, and the second filter layer 20 is located between the first filter layer 19 and the activated carbon layer 21.

[0029] A geothermal water inlet 12 is provided on the side of the isolation block 11, a first hydraulic press 15 is provided at the upper end of the isolation block 11, and the first hydraulic press 15 is located above the first filter layer 19, a second hydraulic press 17 is provided at the upper end of the isolation block 11, and the second hydraulic press 17 is located above the second filter layer 20, a first cleaning block 16 is provided at the lower end of the first hydraulic press 15, and a second cleaning block 18 is provided at the lower end of the second hydraulic press 17.

[0030] A first baffle 22 and a second baffle 23 are provided on the side of the isolation block 11. The first baffle 22 is located on the side of the first filter layer 19, and the second baffle 23 is located on the side of the second filter layer 20. A third baffle 24 is provided on the upper end of the isolation block 11.

[0031] In this embodiment, geothermal water first enters the interior of the isolation block 11 through the geothermal water inlet 12, and larger particles are isolated by the first filter layer 19. Then, the geothermal water continues to move to the second filter layer 20 and filters smaller particles inside the geothermal water. The first hydraulic press 15 and the second hydraulic press 17 are opened and move downward at the same time, pushing the first cleaning block 16 and the second cleaning block 18 downward, and scraping the impurity particles on the surface of the first filter layer 19 and the second filter layer 20 into the cleaning bin at the lower end of the isolation block 11, so as to perform unified cleaning and prevent the filter layer from being blocked due to excessive impurities. Then, the activated carbon layer 21 is used to adsorb harmful substances in the geothermal water to clean the harmful substances and impurities in the geothermal water to prevent affecting the service life and normal operation of the pipeline and equipment. When the device needs to be cleaned, it stops running, and then the bolts on the surface of the first baffle 22, the second baffle 23 and the third baffle 24 are unscrewed, and then the baffle is opened to clean the filter structure 30, so as to extend the service life of the device.

[0032] Furthermore, a water pipe 10 is provided at the lower end of the isolation block 11, and the other end of the water pipe 10 is connected to the gas-liquid separator 9, and a geothermal water outlet pipe 8 is provided at one end of the gas-liquid separator 9;

[0033] In this embodiment, the geothermal water is filtered by the filtering structure 30 and then enters the interior of the water pipe 10. The high-temperature gas and high-temperature liquid of the geothermal water are then separated by the gas-liquid separator 9, and the high-temperature liquid flows downward into the interior of the geothermal water outlet pipe 8.

[0034] Further, the first heat exchange structure 28 includes a first water inlet 2, a first cold water pipe 4, a cold water outlet pipe 5, a geothermal water pipe 14 and a geothermal water outlet 13. The first water inlet 2 is arranged on the side of the shell 1, the top of the geothermal water outlet pipe 8 is arranged with a geothermal water pipe 14, the other end of the geothermal water pipe 14 is arranged with a geothermal water outlet 13, the surface of the geothermal water pipe 14 is arranged with a first cold water pipe 4, one end of the first cold water pipe 4 is connected to the first water inlet 2, and the other end of the first cold water pipe 4 is arranged with a cold water outlet pipe 5;

[0035] In this embodiment, the separated geothermal water first enters the interior of the geothermal water pipe 14 through the geothermal water outlet pipe 8, and then cold water is introduced through the first water inlet 2, so that the cold water enters the interior of the first cold water pipe 4. Since the first cold water pipe 4 is surrounded by the surface of the geothermal water pipe 14, the high temperature of the geothermal water pipe 14 heats the cold water inside the first cold water pipe 4, thereby achieving a heat exchange effect. The geothermal water is then discharged through the geothermal water outlet 13, and the heated cold water is discharged through the cold water outlet pipe 5.

[0036] Furthermore, the second heat exchange structure 29 includes an air outlet 26 and a second cold water pipe 6, and the other end of the air outlet pipe 25 is connected to the side of the shell 1, the air outlet 26 is provided at the inner upper end of the shell 1, and the second cold water pipe 6 is provided at the upper end of the cold water outlet pipe 5;

[0037] Furthermore, an exhauster 27 is provided at the upper end of the housing 1, a first water outlet 3 is provided at the side of the housing 1, and an air outlet pipe 25 is provided at the upper end of the gas-liquid separator 9;

[0038] In this embodiment, the gas separated by the gas-liquid separator 9 first enters the interior of the gas outlet 26 through the gas outlet pipe 25, and the high-temperature gas is discharged into the upper end of the inner part of the shell 1 through the gas outlet 26. Then, the cold water after the first heating enters the interior of the second cold water pipe 6 through the cold water outlet pipe 5, and the cold water inside the second cold water pipe 6 is secondary heated by the high-temperature gas. Then, the secondary heated cold water is discharged from the first water outlet 3, and after the temperature of the high-temperature gas is lowered after heat exchange, the gas is discharged through the exhaust fan 27, thereby achieving an environmental protection effect.

[0039] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope covered by the utility model.

Claims

1. A well isolation heat exchange mechanism for geothermal energy development, comprising: A shell (1), an isolation block (11), a gas-liquid separator (9) and an isolation layer (7), characterized in that an isolation block (11) is arranged on the side of the shell (1), a gas-liquid separator (9) is arranged below the isolation block (11), an isolation layer (7) is arranged inside the shell (1), a first heat exchange structure (28) is arranged at the lower end of the isolation layer (7), a second heat exchange structure (29) is arranged at the upper end of the isolation layer (7), and a filtering structure (30) is arranged inside the isolation block (11); The filter structure (30) comprises a first filter layer (19), a second filter layer (20) and an activated carbon layer (21); the first filter layer (19) is arranged inside the isolation block (11); the second filter layer (20) is arranged inside the isolation block (11); the activated carbon layer (21) is arranged inside the isolation block (11); the second filter layer (20) is located between the first filter layer (19) and the activated carbon layer (21).

2. A well isolation heat exchange mechanism for geothermal energy development according to claim 1, characterized in that: A geothermal water inlet (12) is provided on the side of the isolation block (11); a first hydraulic press (15) is provided on the upper end of the isolation block (11), and the first hydraulic press (15) is located above a first filter layer (19); a second hydraulic press (17) is provided on the upper end of the isolation block (11), and the second hydraulic press (17) is located above a second filter layer (20); a first cleaning block (16) is provided on the lower end of the first hydraulic press (15), and a second cleaning block (18) is provided on the lower end of the second hydraulic press (17).

3. A well isolation heat exchange mechanism for geothermal energy development according to claim 1, characterized in that: A first baffle (22) and a second baffle (23) are provided on the side of the isolation block (11); the first baffle (22) is located on the side of the first filter layer (19); the second baffle (23) is located on the side of the second filter layer (20); and a third baffle (24) is provided on the upper end of the isolation block (11).

4. A well isolation heat exchange mechanism for geothermal energy development as claimed in claim 1, characterized in that: A water pipe (10) is provided at the lower end of the isolation block (11), and the other end of the water pipe (10) is connected to a gas-liquid separator (9), and a geothermal water outlet pipe (8) is provided at one end of the gas-liquid separator (9).

5. A well isolation heat exchange mechanism for geothermal energy development as claimed in claim 4, characterized in that: The first heat exchange structure (28) comprises a first water inlet (2), a first cold water pipe (4), a cold water outlet pipe (5), a geothermal water pipe (14) and a geothermal water outlet (13); the first water inlet (2) is arranged on the side of the shell (1); the top of the geothermal water outlet pipe (8) is arranged with a geothermal water pipe (14); the other end of the geothermal water pipe (14) is arranged with a geothermal water outlet (13); the surface of the geothermal water pipe (14) is arranged with a first cold water pipe (4); one end of the first cold water pipe (4) is connected to the first water inlet (2); the other end of the first cold water pipe (4) is arranged with a cold water outlet pipe (5).

6. A well isolation heat exchange mechanism for geothermal energy development as claimed in claim 5, characterized in that: The second heat exchange structure (29) comprises an air outlet (26) and a second cold water pipe (6), and the other end of the air outlet pipe (25) is connected to the side of the outer shell (1), the inner upper end of the outer shell (1) is provided with an air outlet (26), and the upper end of the cold water outlet pipe (5) is provided with a second cold water pipe (6).

7. A well isolation heat exchange mechanism for geothermal energy development as claimed in claim 6, characterized in that: An exhaust device (27) is provided at the upper end of the shell (1), a first water outlet (3) is provided on the side of the shell (1), and an air outlet pipe (25) is provided at the upper end of the gas-liquid separator (9).

Images