Geothermal heat extraction and injection equipment

Abstract

This invention relates to the field of geothermal extraction technology, and in particular to a geothermal extraction and irrigation device, comprising a heat exchange mechanism, wherein a heat exchange component is provided inside the heat exchange mechanism, and a heat outlet pipe is sleeved at one end of the heat exchange component; a purification mechanism, which is installed on the outer wall of the heat exchange mechanism, and includes a purification cylinder, wherein the upper and lower parts of the purification cylinder are cylindrical, and the middle part is an inverted cone, with the diameter of the upper cylinder being larger than that of the lower cylinder; and a liquid extraction mechanism installed on one side of the purification mechanism. This invention removes impurities through the purification mechanism, using centrifugal force to throw impurities such as mud, sand, and rock fragments toward the cylinder wall and let them settle to the bottom, where they are collected by the slag collection trough of the dust collection mechanism below. This design can effectively intercept complex fouling in the geothermal fluid, avoiding problems such as pipe wall erosion and pipe blockage caused by impurities entering the heat exchange pipe, thus ensuring the smooth operation and service life of the subsequent heat exchange system from the source.

Description

Technical Field

[0001] This disclosure belongs to the field of geothermal extraction technology, specifically relating to a geothermal extraction and irrigation device. Background Technology

[0002] Geothermal extraction is the development of thermal energy from the Earth's interior, especially the heat from groundwater. During the extraction process, groundwater generally contains various impurities, which can have a significant negative impact on subsequent thermal pipelines and heat exchange systems. These impurities include silt, clay, and rock debris. These impurities combine to form complex fouling, which continuously erodes the inner walls of pipelines and heat exchange tubes, causing the pipe walls to thin. Long-term operation can easily lead to pipeline leaks. At the same time, particles tend to deposit in areas where the flow rate slows down, such as pipe bends and heat exchange tube inlets, resulting in a reduction in pipeline cross-section, a decrease in flow rate, or even complete blockage of heat exchange channels, which greatly reduces heat exchange efficiency.

[0003] To address these issues, those skilled in the art have proposed a geothermal extraction and irrigation device for geothermal applications. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the purpose of this disclosure is to provide a geothermal extraction and irrigation device for geothermal use, which solves the problem that impurities in groundwater accumulate inside the heat exchange pipes, resulting in a decrease in heat exchange efficiency.

[0005] The objective of this disclosure can be achieved through the following technical solutions: A geothermal extraction and irrigation device for geothermal use, comprising: A heat exchange mechanism, wherein a heat exchange component is provided inside the heat exchange mechanism, and a heat outlet pipe is sleeved at one end of the heat exchange component; The impurity removal mechanism is installed on the outer wall of the heat exchange mechanism. The impurity removal mechanism includes an impurity removal cylinder, the upper and lower parts of which are cylindrical, and the middle part is an inverted cone. The diameter of the upper cylinder is larger than that of the lower cylinder. A liquid extraction mechanism is installed on one side of the impurity removal mechanism. The liquid extraction mechanism includes a hollow wedge block, which is connected to the impurity removal cylinder at a position tangent to the outer wall of the impurity removal cylinder.

[0006] Preferably, the heat exchange mechanism includes a heat exchange cylinder, which is placed horizontally, and support frames are fixed on both sides of the bottom outer wall of the heat exchange cylinder.

[0007] Preferably, the heat exchange assembly includes a motor, which is installed at the center of the outer wall of the heat exchange cylinder. One end of the output shaft of the motor is fixedly installed with a main pipe, and the other end of the main pipe is inserted into the inner circumference of the heat outlet pipe. Multiple branch pipes are fixed from the inside to the outside on the outer circumference of the main pipe, and the branch pipes are equidistantly distributed on the outer wall of the main pipe.

[0008] Preferably, a sealing ring is fixed between the main pipe and the heat outlet pipe.

[0009] Preferably, multiple fins are fixedly installed on the outer wall of adjacent diverter pipes.

[0010] Preferably, a discharge pipe is inserted into one side of the bottom outer wall of the heat exchange cylinder.

[0011] Preferably, the impurity removal mechanism further includes a mounting plate, which is horizontally fixed on the outer wall of the heat exchange cylinder away from the motor. The impurity removal cylinder is vertically fixed to the surface of the mounting plate, and a liquid outlet pipe is inserted into the center of the top of the impurity removal cylinder. One end of the liquid outlet pipe is connected to the interior of the heat exchange cylinder.

[0012] Preferably, the liquid extraction mechanism further includes a connecting plate, which is horizontally installed on the outer wall of the impurity removal cylinder. A pump body is fixedly installed on the surface of the connecting plate. A liquid extraction pipe is inserted into the input end of the pump body. A flared bucket is fixedly installed at one end of the liquid extraction pipe. A double pipe is inserted into the output end of the pump body. The other end of the double pipe is inserted into the outer wall of the wedge block.

[0013] Preferably, it also includes a dust collection mechanism, which includes a base plate installed on the outer wall of the support frame, and a slag collection trough installed on the surface of the base plate, the slag collection trough being located directly below the impurity removal cylinder.

[0014] The explanations of the nouns, conjunctions, or adjectives used in the above technical solutions are as follows: A fixed connection refers to a connection in which parts or components are fixed in place and there is no relative movement between them; A rotating connection is a connection between parts that allows the parts to rotate relative to each other. Threaded connections are a type of detachable fixed connection with advantages such as simple structure, reliable connection, and convenient assembly and disassembly. They are widely used in mechanical engineering and connection structure fields. A sliding connection is a connection between parts that allows the parts to slide against each other.

[0015] The beneficial effects of this disclosure are: This invention incorporates a purification mechanism with a unique structure for its purification cylinder, which is a cylinder with a larger upper section and a smaller lower section, and an inverted cone. Combined with a hollow wedge block connected tangentially to the purification cylinder, the geothermal fluid transported by the pumping mechanism can form a swirling flow within the purification cylinder. Centrifugal force is used to throw impurities such as mud, sand, and rock fragments against the cylinder wall and allow them to settle to the bottom, where they are collected by the slag collection trough of the dust collection mechanism below. This design effectively intercepts complex fouling in the geothermal fluid, preventing impurities from entering the heat exchange pipes and causing problems such as thinning of the pipe walls and pipe blockage. This ensures the smooth operation and service life of the subsequent heat exchange system from the source. This invention features a heat exchange assembly with multiple equidistant branch pipes distributed around the main pipe. Fins are added to the outer walls of adjacent branch pipes. On one hand, the branch pipes can disperse and transport the heat exchange medium, increasing the contact area with the geothermal fluid. On the other hand, the fins can further enhance the heat exchange effect. Meanwhile, the motor drives the main pipe to rotate, which, together with the horizontally placed heat exchange cylinder, allows the geothermal fluid sufficient heat exchange time inside the cylinder, greatly improving the heat recovery efficiency and solving the problem of insufficient heat exchange in traditional equipment. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, those skilled in the art can obtain other drawings based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this disclosure; Figure 2 This is a schematic diagram of the internal structure of the device according to an embodiment of this disclosure; Figure 3 This is a schematic diagram of the structure of the heat exchange assembly, heat outlet pipe and sealing ring according to an embodiment of this disclosure; Figure 4 yes Figure 1 Another structural diagram from a different angle; Figure 5 This is a schematic diagram of the structure of the impurity removal mechanism, liquid extraction mechanism, and dust collection mechanism according to an embodiment of this disclosure.

[0018] In the diagram: 1. Heat exchange mechanism; 101. Heat exchange cylinder; 102. Discharge pipe; 103. Support frame; 104. Heat exchange assembly; 1041. Motor; 1042. Main pipe; 1043. Diversion pipe; 1044. Fins; 105. Heat removal pipe; 106. Sealing ring; 2. Impurity removal mechanism; 201. Mounting plate; 202. Impurity removal cylinder; 203. Liquid outlet pipe; 3. Liquid extraction mechanism; 301. Connecting plate; 302. Pump body; 303. Liquid extraction pipe; 304. Flared hopper; 305. Double pipe; 306. Wedge block; 4. Dust collection mechanism; 401. Base plate; 402. Slag collection tank. Detailed Implementation

[0019] The technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments of this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.

[0020] Those skilled in the art will understand that the expressions relating to direction are used herein for the sake of descriptive convenience only, and are not intended to impose an absolute limitation on the direction of the novel pin-disc friction pair device.

[0021] Please refer to Figures 1 to 5 A geothermal extraction and irrigation device for geothermal use, comprising: Heat exchange mechanism 1, heat exchange mechanism 1 is provided with heat exchange component 104 inside heat exchange component 104, and heat outlet pipe 105 is sleeved at one end of heat exchange component 104; Impurity removal mechanism 2 is installed on the outer wall of heat exchange mechanism 1. Impurity removal mechanism 2 includes impurity removal cylinder 202. The upper and lower parts of impurity removal cylinder 202 are both cylindrical, and the middle part is an inverted cone. The diameter of the upper cylinder is larger than that of the lower cylinder. The liquid extraction mechanism 3 is installed on one side of the impurity removal mechanism 2. The liquid extraction mechanism 3 includes a hollow wedge block 306. The wedge block 306 is connected to the impurity removal cylinder 202 at a position tangent to the outer wall of the impurity removal cylinder 202.

[0022] The pumping mechanism 3 transports the underground geothermal fluid to the hollow wedge-shaped block 306. Since the wedge-shaped block 306 is connected to the impurity removal cylinder 202 tangentially along its outer wall, the geothermal fluid will form a high-speed swirling flow along the cylinder wall after entering the impurity removal cylinder 202. Under the action of centrifugal force, impurities such as mud, rock fragments, and clay mixed in the geothermal fluid will be thrown towards the inner wall of the impurity removal cylinder 202. Furthermore, since the impurity removal cylinder 202 is an inverted cone in the middle and has cylinders of different diameters at the top and bottom, impurities will be further aggravated by the combined effects of gravity and fluid swirling. The impurities settle into the small-diameter cylindrical area at the bottom of the impurity removal cylinder 202, achieving initial separation of the geothermal fluid from impurities. After being purified by the impurity removal cylinder 202, the geothermal fluid enters the interior of the heat exchange mechanism 1 and comes into full contact with the heat exchange component 104 pre-set in the heat exchange mechanism 1. The heat exchange component 104 can absorb the heat energy in the geothermal fluid and conduct the heat energy to the heat outlet pipe 105 connected to one end. The heat energy is collected and exported through the heat outlet pipe 105, realizing the effective utilization of geothermal resources.

[0023] Specifically, the heat exchange mechanism 1 includes a heat exchange cylinder 101, which is placed horizontally, and support frames 103 are fixed on both sides of the bottom outer wall of the heat exchange cylinder 101.

[0024] The heat exchange cylinder 101 adopts a horizontally placed structure, which, compared to a vertical layout, allows the geothermal fluid entering the cylinder to form a longer flow path inside the cylinder, extending the contact time between the geothermal fluid and the internal heat exchange components. This allows the heat energy in the geothermal fluid to be more fully absorbed by the heat exchange components, thereby improving the overall heat exchange efficiency and ensuring the heat recovery effect.

[0025] Furthermore, the heat exchange assembly 104 includes a motor 1041, which is installed at the center of the outer wall of the heat exchange cylinder 101. One end of the output shaft of the motor 1041 is fixedly installed with a main pipe 1042, and the other end of the main pipe 1042 is inserted into the inner circumference of the heat outlet pipe 105. Multiple branch pipes 1043 are fixed from the inside to the outside on the outer circumference of the main pipe 1042, and the branch pipes 1043 are equidistantly distributed on the outer wall of the main pipe 1042.

[0026] After the motor 1041 starts, its output shaft will drive the main pipe 1042, which is fixedly connected to it, to rotate synchronously, providing a power basis for the heat exchange operation of the entire heat exchange assembly 104. This allows the main pipe 1042 and the distribution pipe 1043 on the outer wall to form a dynamic heat exchange structure within the heat exchange cylinder 101. The distribution pipe 1043 will rotate together with the main pipe 1042. When the geothermal fluid enters the heat exchange cylinder 101, the rotation of the distribution pipe 1043 can agitate the fluid and disperse the heat exchange medium around the main pipe 1042. Compared with a single pipe, multiple sets of equidistant distribution pipes 1043 greatly increase the contact area between the heat exchange structure 1 and the geothermal fluid, allowing for more complete heat exchange.

[0027] It should be noted that a sealing ring 106 is fixed between the main pipe 1042 and the heat outlet pipe 105.

[0028] The sealing effect at the connection between the main pipe 1042 and the heat dissipation pipe 105 is enhanced by the sealing ring 106.

[0029] Furthermore, multiple fins 1044 are fixedly installed on the outer wall of the adjacent diversion pipe 1043.

[0030] Fin 1044 can further enhance the heat exchange effect.

[0031] Specifically, a discharge pipe 102 is inserted into one side of the bottom outer wall of the heat exchange cylinder 101.

[0032] The geothermal water that has completed heat exchange in the heat exchange cylinder 101 is discharged through the discharge pipe 102, which facilitates the subsequent introduction of new geothermal water for heat exchange.

[0033] Specifically, the impurity removal mechanism 2 also includes a mounting plate 201, which is horizontally fixed on the outer wall of the heat exchange cylinder 101 away from the motor 1041. The impurity removal cylinder 202 is vertically fixed on the surface of the mounting plate 201. A liquid outlet pipe 203 is inserted into the center of the top of the impurity removal cylinder 202, and one end of the liquid outlet pipe 203 is connected to the inside of the heat exchange cylinder 101.

[0034] The pumping mechanism 3 pumps the geothermal fluid into the impurity removal cylinder 202. After impurity removal is completed in the impurity removal cylinder 202, the clean geothermal fluid is sent into the heat exchange cylinder 101 through the liquid outlet pipe 203 to facilitate subsequent heat exchange.

[0035] Specifically, the liquid extraction mechanism 3 also includes a connecting plate 301, which is horizontally installed on the outer wall of the impurity removal cylinder 202. A pump body 302 is fixedly installed on the surface of the connecting plate 301. A liquid extraction pipe 303 is inserted into the input end of the pump body 302. A flared bucket 304 is fixedly installed at one end of the liquid extraction pipe 303. A double pipe 305 is inserted into the output end of the pump body 302. The other end of the double pipe 305 is inserted into the outer wall of the wedge block 306.

[0036] After the pump body 302 starts, it generates negative pressure suction. This suction is transmitted through the liquid extraction pipe 303 at the input end to the flared bucket 304 at its end. The large diameter design of the flared bucket 304 can increase the collection range of geothermal fluid and reduce the resistance when the fluid is sucked in. It can efficiently extract the underground geothermal fluid into the liquid extraction pipe 303 to complete the initial collection of geothermal fluid. The extracted geothermal fluid is transported to the hollow wedge block 306 through the double pipe 305 at the output end. The double pipe 305 can split the fluid and improve the transportation efficiency. The wedge block 306 is connected to the impurity removal cylinder 101 along the tangent of the outer wall of the impurity removal cylinder 202. After the fluid enters the wedge block 306, it will enter the interior of the impurity removal cylinder 101 along the tangential direction, laying the fluid movement foundation for the subsequent formation of vortex flow and the separation of impurities in the impurity removal cylinder 101.

[0037] Furthermore, it also includes a dust collection mechanism 4, which includes a base plate 401 installed on the outer wall of the support frame 103. A slag collection trough 402 is installed on the surface of the base plate 401, and the slag collection trough 402 is located directly below the impurity removal cylinder 202.

[0038] The impurities separated in the impurity removal cylinder 101 fall into the slag collection tank 402 under the action of gravity.

[0039] The following description, in conjunction with the accompanying drawings and embodiments, provides a further explanation of a geothermal extraction and irrigation device for geothermal use provided by the present invention.

[0040] After the equipment is started, the pump body 302 generates negative pressure suction and conducts it through the liquid extraction pipe 303 to the flared bucket 304 to collect underground geothermal fluid. Then, the fluid is transported to the wedge block 306 through the double pipe 305. The geothermal fluid enters the impurity removal cylinder 101 tangentially, forming a high-speed vortex inside the cylinder. Impurities such as mud, sand, and rock fragments in the fluid are thrown against the cylinder wall and settle to the bottom under the combined action of centrifugal force and gravity, and finally fall into the slag collection tank 402 for collection. The geothermal fluid that has been purified by removing impurities enters the heat exchange cylinder 101 through the liquid outlet pipe 203 at the top of the impurity removal cylinder 101. The motor 1041 starts, driving the main pipe 1042. The branch pipe 1043 rotates synchronously, and the fins 1044 on the outer wall of the branch pipe greatly increase the contact area with the geothermal fluid, so that the heat energy is fully transferred to the branch pipe 1043 and the main pipe 1042. The heat energy collected by the main pipe 1042 is smoothly conducted to the heat outlet pipe 105 for centralized discharge. The heat outlet pipe can be connected to the urban centralized heating network or the building's independent heating circuit, can be connected to the industrial production heat system of the factory, or directly heat the water in the external water tank to realize the utilization of heat energy. The geothermal tailwater that has completed heat exchange is discharged through the discharge pipe 102 at the bottom of the heat exchange cylinder, realizing the complete process of the entire geothermal extraction and irrigation.

[0041] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of this disclosure. Those skilled in the art should understand that this disclosure is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this disclosure. Various changes and modifications can be made to this disclosure without departing from its spirit and scope, and all such changes and modifications fall within the scope of this disclosure as claimed.

Claims

1. A geothermal extraction and irrigation device for geothermal use, characterized in that, include: A heat exchange mechanism (1) is provided inside the heat exchange mechanism (1), and a heat exchange component (104) is sleeved at one end of the heat exchange component (104). Impurity removal mechanism (2), the impurity removal mechanism (2) is installed on the outer wall of the heat exchange mechanism (1), the impurity removal mechanism (2) includes an impurity removal cylinder (202), the upper part and the lower part of the impurity removal cylinder (202) are both cylindrical, and the middle part is an inverted cone, the diameter of the upper part cylinder is larger than that of the lower part cylinder; A liquid extraction mechanism (3) is installed on one side of the impurity removal mechanism (2). The liquid extraction mechanism (3) includes a hollow wedge block (306). The wedge block (306) is connected to the impurity removal cylinder (202) at a position along the tangent of the outer wall of the impurity removal cylinder (202).

2. The geothermal extraction and irrigation equipment as described in claim 1, characterized in that: The heat exchange mechanism (1) includes a heat exchange cylinder (101), which is placed horizontally, and support frames (103) are fixed on both sides of the bottom outer wall of the heat exchange cylinder (101).

3. A geothermal extraction and irrigation device for geothermal use as described in claim 2, characterized in that: The heat exchange assembly (104) includes a motor (1041), which is installed at the center of the outer wall of the heat exchange cylinder (101). One end of the output shaft of the motor (1041) is fixedly installed with a main pipe (1042), and the other end of the main pipe (1042) is inserted into the inner circumference of the heat outlet pipe (105). Multiple branch pipes (1043) are fixed from the inside to the outside on the outer circumference of the main pipe (1042), and the branch pipes (1043) are equidistantly distributed on the outer wall of the main pipe (1042).

4. A geothermal extraction and irrigation device for geothermal use as described in claim 3, characterized in that: A sealing ring (106) is fixed between the main pipe (1042) and the heat outlet pipe (105).

5. A geothermal extraction and irrigation device for geothermal use as described in claim 3, characterized in that: Multiple fins (1044) are fixedly installed on the outer wall of the adjacent diversion pipe (1043).

6. A geothermal extraction and irrigation device for geothermal use as described in claim 3, characterized in that: A discharge pipe (102) is inserted into one side of the bottom outer wall of the heat exchange cylinder (101).

7. A geothermal extraction and irrigation device for geothermal use as described in claim 3, characterized in that: The impurity removal mechanism (2) also includes a mounting plate (201), which is horizontally fixed on the outer wall of the heat exchange cylinder (101) away from the motor (1041). The impurity removal cylinder (202) is vertically fixed on the surface of the mounting plate (201). A liquid outlet pipe (203) is inserted at the center of the top of the impurity removal cylinder (202), and one end of the liquid outlet pipe (203) is connected to the inside of the heat exchange cylinder (101).

8. A geothermal extraction and irrigation device for geothermal use as described in claim 7, characterized in that: The liquid extraction mechanism (3) also includes a connecting plate (301), which is horizontally installed on the outer wall of the impurity removal cylinder (202). A pump body (302) is fixedly installed on the surface of the connecting plate (301). A liquid extraction pipe (303) is inserted into the input end of the pump body (302). A flared bucket (304) is fixedly installed at one end of the liquid extraction pipe (303). A double pipe (305) is inserted into the output end of the pump body (302). The other end of the double pipe (305) is inserted into the outer wall of the wedge block (306).

9. A geothermal extraction and irrigation device for geothermal use as described in claim 7, characterized in that: It also includes a dust collection mechanism (4), which includes a base plate (401) installed on the outer wall of the support frame (103), and a slag collection trough (402) is installed on the surface of the base plate (401), which is located directly below the impurity removal cylinder (202).

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