A medium and low temperature geothermal resource exploration device

Abstract

The present invention discloses a medium-low temperature geothermal resource exploration device, comprising a guide pulley arranged at a geothermal wellhead, a measuring rope wound on the guide pulley, and a winding device arranged beside the geothermal well for winding the measuring rope, one end of the measuring rope is connected to the winding device, and the other end extends into the geothermal well, and a measuring float is arranged at the end of the measuring rope located in the geothermal well; an adjustment component is arranged on the measuring rope, and the adjustment component comprises an outer cylinder, a piston rod, an end cover, a first clamping device and a second clamping device, the piston rod is in a T-shaped structure, the piston rod is slidably installed in the outer cylinder, the end cover is connected to the outer cylinder, the piston rod passes through the end cover and is hinged to the second clamping device, a weight sensor is arranged at the upper end of the end cover, a pressure plate is arranged in the outer cylinder, the pressure plate can slide on the piston rod, and the lower end of the pressure plate contacts the weight sensor. The device can realize the detection of water level in the geothermal well, and has the advantages of simple monitoring and not easy to damage.

Description

Technical Field

[0001] The invention relates to the technical field of geothermal utilization detection equipment, in particular to a medium- and low-temperature geothermal resource exploration device. Background Art

[0002] Exploration means on-site inspection and on-site investigation. Exploration is the use of modern scientific principles, modern scientific and technological knowledge and methods by departments or personnel specialized in exploration to inspect, examine, investigate, visit, find, discover, fix and extract relevant traces, items and other evidence materials and information on facts that need to be collected, and provide services for scientific and technological identification, comprehensive analysis and judgment. For example: on-site investigation. Among them, exploration includes preliminary investigation and post-exploration. Pre-exploration is mostly search-oriented exploration, and post-exploration is mainly on-site investigation, including equipment operation investigation, geothermal water level investigation, etc.

[0003] Geothermal energy is an energy resource generated by nuclear fission inside the earth. The temperature of lava ejected from volcanoes on the earth is as high as 1200℃~1300℃, and the temperature of natural hot springs is mostly above 60℃, and some are even as high as 100℃~140℃. This shows that the earth is a huge heat reservoir with huge thermal energy. This heat seeps out of the surface, and thus there is geothermal energy. Geothermal energy is a clean energy and a renewable energy, and its development prospects are very broad.

[0004] In the utilization of geothermal resources, since the water level of geothermal water sometimes drops, it is necessary to monitor the water level in the geothermal well to prevent the equipment from drying out after the water level drops. Therefore, monitoring the water level in the geothermal well is very important. The existing geothermal water is detected by some sensors, but the depth of geothermal water is deep, and the temperature of geothermal water is high, which can easily damage the equipment and make it inconvenient to use. Summary of the invention

[0005] The object of the present invention is to provide a medium-low temperature geothermal resource exploration device, which can detect the water level in a geothermal well and has the advantages of simple monitoring and not easy to damage.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] A medium-low temperature geothermal resource exploration device comprises a guide pulley arranged at a geothermal wellhead, a measuring rope wound on the guide pulley, and a winding device arranged beside the geothermal well for winding the measuring rope, one end of the measuring rope is connected to the winding device, and the other end extends into the geothermal well, and a measuring float is arranged at the end of the measuring rope located in the geothermal well;

[0008] An adjustment component is arranged on the measuring rope, and the adjustment component includes an outer cylinder, a piston rod, an end cover, a first clamping device and a second clamping device. The piston rod is in a T-shaped structure, and the piston rod is slidably installed in the outer cylinder. The end cover is connected to the outer cylinder, and the piston rod is hinged with the second clamping device after passing through the end cover. A weight sensor is arranged on the upper end of the end cover, and a pressure plate is arranged in the outer cylinder. The pressure plate can slide on the piston rod, and the lower end of the pressure plate contacts the weight sensor. A spring is sleeved on the piston rod located in the outer cylinder, and the spring is located between the upper end of the piston rod and the pressure plate;

[0009] A sliding first sealing ring is arranged between the piston rod and the end cover; a signal transmitter is arranged in the outer tube, and the upper end of the outer tube is hinged to the first clamping device through a connecting rod;

[0010] The first clamping device and the second clamping device are used to clamp the measuring rope. After the first clamping device and the second clamping device are clamped on the measuring rope, the length of the measuring rope between the first clamping device and the second clamping device is greater than the overall length of the adjustment component; the weight sensor is connected to a controller through a signal transmitter, and the controller is connected to the winding device.

[0011] Further optimization is that there are multiple first sealing rings, and the multiple first sealing rings are equidistantly distributed in sequence from top to bottom on the end cover.

[0012] The end cover is connected to the outer cylinder via threads.

[0013] Further optimization is performed by providing a second sealing ring between the outer cylinder and the end cover.

[0014] Among them, the first clamping device and the second clamping device both include a first jacket and a second jacket, and an arc-shaped clamping portion is provided on the first jacket and the second jacket; the first jacket and the second jacket are connected by bolts; the second jacket in the first clamping device is hinged to the connecting rod; the first jacket in the second clamping device is hinged to the lower end of the piston rod.

[0015] In actual use, the second clamping sleeve in the first clamping device is hinged to the connecting rod via a first rotating shaft; the first clamping sleeve in the second clamping device is hinged to the lower end of the piston rod via a second rotating shaft.

[0016] Further optimization is that a tightening device is provided on the first sleeve and the second sleeve, and the tightening device includes a screw threaded on the first sleeve and the second sleeve, and the end of the screw can extend into the arc-shaped clamping part.

[0017] The tightening device further comprises a clamping plate, on which a groove is arranged, and the end of the screw is slidably matched with the groove.

[0018] Further optimization is that the first jacket and the second jacket are both provided with a first guide hole and a second guide hole, and the clamping plate is provided with a first guide rod and a second guide rod that can cooperate with the first guide hole and the second guide hole.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The present invention is mainly composed of a guide pulley, a measuring rope, a winding device, a measuring float and an adjusting assembly. In actual use, the adjusting assembly is fixedly arranged on the measuring rope. Since the piston rod is in a T-shaped structure, the piston rod is slidably installed in the outer cylinder, the end cover is connected to the outer cylinder, and the piston rod is hinged with the second clamping device after passing through the end cover. A weight sensor is arranged at the upper end of the end cover, and a pressure plate is arranged in the outer cylinder. The pressure plate can slide on the piston rod, and the lower end of the pressure plate contacts the weight sensor. A spring is sleeved on the piston rod located in the outer cylinder, and the spring is located between the upper end of the piston rod and the pressure plate; a sliding first sealing ring is arranged between the piston rod and the end cover; a signal transmitter is arranged in the outer cylinder, and the upper end of the outer cylinder is hinged with the first clamping device through a connecting rod; the first clamping device and the second clamping device are used to clamp on the measuring rope. After the first clamping device and the second clamping device are clamped on the measuring rope, the length of the measuring rope between the first clamping device and the second clamping device is greater than the overall length of the adjusting assembly; the weight sensor is connected to a controller through the signal transmitter, and the controller is connected to the winding device.

[0021] Thus, in actual use, the first clamping device and the second clamping device are clamped on the measuring rope, and the length of the measuring rope between the first clamping device and the second clamping device is greater than the overall length of the adjusting assembly; thus, the measuring rope between the first clamping device and the second clamping device will not be subjected to force; the weight of the measuring float is different when it is suspended in the air and when it floats on the geothermal water. When the measuring float floats on the geothermal water, the measuring float pulls the piston rod, and the piston rod applies force to the pressure plate through the spring, so that the weight sensor receives the value;

[0022] If the water level of the geothermal water drops, the measuring float will gradually become suspended, and the weight of the measuring float will gradually increase after the buoyancy is removed. At this time, the force of the piston rod on the weight sensor increases. When it increases to a preset value, the weight sensor and the signal are transmitted to the signal transmitter; the signal transmitter sends the signal to the controller, and the controller controls the winding device to release the line;

[0023] If the water level of the geothermal water rises, the measuring range will move upwards; at this time, the weight value detected by the weight sensor will decrease. When it decreases to the preset value, the weight sensor and the signal are transmitted to the signal transmitter; the signal transmitter sends the signal to the controller, and the controller controls the winding device to reel in the line;

[0024] In this way, real-time detection of the geothermal water level can be achieved; because in actual use, the distance between the adjusting component and the measuring float is constant; in this way, when in use, the distance between the adjusting component and the measuring float is set according to the conditions of the geothermal well, which can effectively avoid the adjusting component from being close to the geothermal water, prevent high temperature from affecting the adjusting component, and extend the service life of the adjusting device; at the same time, the first clamping device and the second clamping device are used to clamp and fix the measuring rope, which makes disassembly and assembly more convenient, and in actual use, no irreversible damage will be caused to the measuring device. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 It is a schematic diagram of the use state of the present invention.

[0027] Figure 2 This is a schematic diagram of the state in which the adjusting device of the present invention is clamped on the measuring rope.

[0028] Figure 3 It is a schematic diagram of the overall structure of the first and second clamping devices of the present invention.

[0029] Figure markings: 1-geothermal well, 2-guide pulley, 3-measuring rope, 4-winding device, 5-measuring float, 6-adjusting assembly, 7-outer cylinder, 8-piston rod, 9-end cover, 10-first clamping device, 11-second clamping device, 12-weight sensor, 13-pressure plate, 14-spring, 15-first sealing ring, 16-second sealing ring, 17-first jacket, 18-second jacket, 19-arc-shaped clamp, 20-bolt, 21-connecting rod, 22-first rotating shaft, 23-second rotating shaft, 24-screw, 25-clamp, 26-groove, 27-first guide hole, 28-second guide hole, 29-first guide rod, 30-second guide rod. DETAILED DESCRIPTION

[0030] The present invention is further described below in conjunction with embodiments, which are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, other embodiments obtained by ordinary technicians in the field without creative work are all within the scope of protection of the present invention.

[0031] Embodiment 1

[0032] As the instruction manual Figure 1-3As shown, this embodiment discloses a medium-low temperature geothermal resource exploration device, comprising a guide pulley 2 arranged at the mouth of a geothermal well 1, a measuring rope 3 wound on the guide pulley 2, and a winding device 4 arranged beside the geothermal well 1 for winding the measuring rope 3, one end of the measuring rope 3 is connected to the winding device 4, and the other end extends into the geothermal well 1, and a measuring float 5 is arranged at the end of the measuring rope 3 located in the geothermal well 1;

[0033] An adjustment assembly 6 is arranged on the measuring rope 3, and the adjustment assembly 6 includes an outer cylinder 7, a piston rod 8, an end cover 9, a first clamping device 10 and a second clamping device 11. The piston rod 8 is in a T-shaped structure, and the piston rod 8 is slidably installed in the outer cylinder 7. The end cover 9 is connected to the outer cylinder 7. The piston rod 8 is hinged with the second clamping device 11 after passing through the end cover 9. A weight sensor 12 is arranged on the upper end of the end cover 9. A pressure plate 13 is arranged in the outer cylinder 7. The pressure plate 13 can slide on the piston rod 8. The lower end of the pressure plate 13 contacts the weight sensor 12. A spring 14 is sleeved on the piston rod 8 located in the outer cylinder 7. The spring 14 is located between the upper end of the piston rod 8 and the pressure plate 13;

[0034] A sliding first sealing ring 15 is provided between the piston rod 8 and the end cover 9; a signal transmitter is provided in the outer tube 7, and the upper end of the outer tube 7 is hinged to the first clamping device 10 through a connecting rod 21;

[0035] The first clamping device 10 and the second clamping device 11 are used to clamp the measuring rope. After the first clamping device 10 and the second clamping device 11 are clamped on the measuring rope, the length of the measuring rope between the first clamping device 10 and the second clamping device 11 is greater than the overall length of the adjustment component 6; the weight sensor 12 is connected to a controller through a signal transmitter, and the controller is connected to the winding device 4.

[0036] The present invention is mainly composed of a guide pulley 2, a measuring rope 3, a winding device 4, a measuring float 5 and an adjusting component 6. In actual use, the adjusting component 6 is fixedly set on the measuring rope 3. Since the piston rod 8 is a T-shaped structure, the piston rod 8 is slidably installed in the outer cylinder 7, and the end cover 9 is connected to the outer cylinder 7. The piston rod 8 passes through the end cover 9 and is hinged to the second clamping device 11. A weight sensor 12 is arranged at the upper end of the end cover 9, and a pressure plate 13 is arranged in the outer cylinder 7. The pressure plate 13 can slide on the piston rod 8, and the lower end of the pressure plate 13 contacts with the weight sensor 12. A spring 14 is sleeved on the piston rod 8 in the outer cylinder 7. The spring 14 is located between the upper end of the piston rod 8 and the pressure plate 13; a sliding first sealing ring 15 is arranged between the piston rod 8 and the end cover 9; a signal transmitter is arranged in the outer tube 7, and the upper end of the outer tube 7 is hinged to the first clamping device 10 through a connecting rod 21; the first clamping device 10 and the second clamping device 11 are used to clamp on the measuring rope, after the first clamping device 10 and the second clamping device 11 are clamped on the measuring rope, the length of the measuring rope between the first clamping device 10 and the second clamping device 11 is greater than the overall length of the adjustment component 6; the weight sensor 12 is connected to a controller through the signal transmitter, and the controller is connected to the winding device 4.

[0037] Thus, in actual use, the first clamping device 10 and the second clamping device 11 are clamped on the measuring rope 3, and the length of the measuring rope between the first clamping device 10 and the second clamping device 11 is greater than the overall length of the adjusting assembly 6; thus, the measuring rope 3 between the first clamping device 10 and the second clamping device 11 will not be subjected to force; the weight of the measuring float 5 is different when it is suspended in the air and when it floats on the geothermal water. When the measuring float 5 floats on the geothermal water, the measuring float 5 pulls the piston rod 8, and the piston rod 8 exerts force on the pressure plate 13 through the spring 14, so that the weight sensor 12 receives the value;

[0038] If the water level of the geothermal water drops, the measuring float 5 will gradually become suspended, and the weight of the measuring float 5 will gradually increase after the buoyancy is removed. At this time, the force of the piston rod 8 on the weight sensor 12 increases. When it increases to a preset value, the weight sensor 12 and the signal are transmitted to the signal transmitter; the signal transmitter sends the signal to the controller, and the controller controls the winding device 4 to release the line;

[0039] If the water level of the geothermal water rises, the measurement will move upward; at this time, the weight value detected by the weight sensor 12 will decrease. When it decreases to a preset value, the weight sensor 12 and the signal are transmitted to the signal transmitter; the signal transmitter sends the signal to the controller, and the controller controls the winding device 4 to take up the line;

[0040] In this way, real-time detection of the geothermal water level can be achieved; since the distance between the regulating component 6 and the measuring float 5 is constant in actual use, the distance between the regulating component 6 and the measuring float 5 is set according to the situation of the geothermal well 1 during use, which can effectively avoid the regulating component 6 from being close to the geothermal water, prevent the high temperature from affecting the regulating component 6, and extend the service life of the regulating device;

[0041] At the same time, the first clamping device 10 and the second clamping device 11 are used to clamp and fix the measuring rope 3, which makes assembly and disassembly more convenient, and will not cause irreversible damage to the measuring device in actual use.

[0042] In actual use, the winding device 4 can be an existing winding device, and its structure and internal circuit control principle are not described in detail here.

[0043] For further optimization, there are multiple first sealing rings 15 , and the multiple first sealing rings 15 are equidistantly distributed in sequence from top to bottom on the end cover 9 .

[0044] In this way, the first sealing ring 15 can achieve a better waterproof effect and prevent water vapor from entering the inner part of the outer tube 7.

[0045] The end cover 9 and the outer tube 7 are connected by threads, which makes disassembly, assembly and maintenance more convenient.

[0046] For further optimization, a second sealing ring 16 is provided between the outer cylinder 7 and the end cover 9 to improve the sealing performance between the end cover 9 and the outer cylinder 7 .

[0047] In this embodiment, the first clamping device 10 and the second clamping device 11 both include a first jacket 17 and a second jacket 18, and an arc-shaped clamping portion 19 is provided on the first jacket 17 and the second jacket 18; the first jacket 17 and the second jacket 18 are connected by bolts 20; the second jacket 18 in the first clamping device 10 is hinged to the connecting rod 21; the first jacket 17 in the second clamping device 11 is hinged to the lower end of the piston rod 8.

[0048] The second clamping sleeve 18 in the first clamping device 10 is hinged to the connecting rod 21 via a first rotating shaft 22 ; the first clamping sleeve 17 in the second clamping device 11 is hinged to the lower end of the piston rod 8 via a second rotating shaft 23 .

[0049] For further optimization, a tightening device is provided on the first jacket 17 and the second jacket 18 , and the tightening device includes a screw 24 threadedly connected to the first jacket 17 and the second jacket 18 , and the end of the screw 24 can extend into the arc-shaped clamping portion 19 .

[0050] In this way, in actual use, the measuring rope 3 can be clamped and fixed by the first clamping sleeve 17 and the second clamping sleeve 18, and the operation is convenient and quick.

[0051] For further optimization, in actual use, the tightening device further includes a clamping plate 25 , on which a groove 26 is provided, and the end of the screw 24 is slidably matched with the groove 26 .

[0052] The first jacket 17 and the second jacket 18 are both provided with a first guide hole 27 and a second guide hole 28 , and the clamping plate 25 is provided with a first guide rod 29 and a second guide rod 30 that can cooperate with the first guide hole 27 and the second guide hole 28 .

[0053] In this way, in actual use, the setting of the pressure plate 13 can further improve the tightening effect. At the same time, the setting of the first guide rod 29 and the second guide rod 30 have a better guiding effect when driving the pressure plate 13 to tighten the measuring rope 3, and can prevent it from deflecting.

[0054] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they are aware of the basic creative concepts. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention. The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A medium and low temperature geothermal resource exploration device, characterized in that: The invention comprises a guide pulley arranged at the geothermal wellhead, a measuring rope wound on the guide pulley, and a winding device arranged beside the geothermal well for winding the measuring rope, one end of the measuring rope is connected to the winding device, and the other end extends into the geothermal well, and a measuring float is arranged at the end of the measuring rope located in the geothermal well; An adjustment component is arranged on the measuring rope, and the adjustment component includes an outer cylinder, a piston rod, an end cover, a first clamping device and a second clamping device. The piston rod is in a T-shaped structure, and the piston rod is slidably installed in the outer cylinder. The end cover is connected to the outer cylinder, and the piston rod is hinged with the second clamping device after passing through the end cover. A weight sensor is arranged on the upper end of the end cover, and a pressure plate is arranged in the outer cylinder. The pressure plate can slide on the piston rod, and the lower end of the pressure plate contacts the weight sensor. A spring is sleeved on the piston rod located in the outer cylinder, and the spring is located between the upper end of the piston rod and the pressure plate; A signal transmitter is arranged in the outer cylinder, and the upper end of the outer cylinder is hinged to the first clamping device through a connecting rod; the first clamping device and the second clamping device are used to clamp on the measuring rope, and after the first clamping device and the second clamping device are clamped on the measuring rope, the length of the measuring rope between the first clamping device and the second clamping device is greater than the overall length of the adjustment assembly; the weight sensor is connected to a controller through the signal transmitter, and the controller is connected to the winding device; A sliding first sealing ring is arranged between the piston rod and the end cover, and there are multiple first sealing rings, which are evenly distributed from top to bottom on the end cover; A second sealing ring is arranged between the outer cylinder and the end cover.

2. A medium-low temperature geothermal resource exploration device according to claim 1, characterized in that: The end cover is connected to the outer cylinder through threads.

3. A medium-low temperature geothermal resource exploration device according to claim 1, characterized in that: The first clamping device and the second clamping device both include a first jacket and a second jacket, and an arc-shaped clamping portion is provided on the first jacket and the second jacket; the first jacket and the second jacket are connected by bolts; the second jacket in the first clamping device is hinged to the connecting rod; the first jacket in the second clamping device is hinged to the lower end of the piston rod.

4. A medium-low temperature geothermal resource exploration device according to claim 3, characterized in that: The second clamping sleeve in the first clamping device is hinged to the connecting rod via a first rotating shaft; the first clamping sleeve in the second clamping device is hinged to the lower end of the piston rod via a second rotating shaft.

Images