Temperature detector for geothermal exploration

Abstract

The utility model discloses a thermoscope for geothermal exploration, which belongs to the technical field of geothermal data acquisition and comprises a stabilizing seat, a guide pipe and a plurality of uniformly distributed L-shaped reinforcing frames, matched temperature measuring pipes are inserted in the guide pipe, the upper ends in the temperature measuring pipes are fixedly connected with a mounting plate, a large-torque motor is fixedly mounted on the mounting plate, and a through hole is formed in the mounting plate. The output end of the mounting plate penetrates through the through hole and is fixedly connected with a transmission rod, the lower end of the transmission rod is fixedly connected with a temperature measuring assembly, an infrared thermometer is adopted as a temperature measuring element, and the precise transmission mechanism and the temperature measuring hole design are combined, so that accurate measurement of temperatures in different depths and different directions in the geothermal drill hole can be achieved; the infrared thermometer has the characteristic of non-contact temperature measurement, errors caused by contact in a traditional temperature measurement method can be avoided, and meanwhile, interference of the external environment on the temperature measurement result can be further reduced through intermittent alignment of the first temperature measurement hole and the second temperature measurement hole, and the temperature measurement precision is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to geothermal data acquisition technical field more specifically, relate to a temperature detector for geothermal exploration. BACKGROUND

[0002] As a clean and renewable energy, geothermal resources are increasingly attracting attention and attention worldwide. Its development and utilization not only can effectively alleviate energy pressure, but also can significantly reduce carbon emissions, which has important significance for environmental protection and sustainable development. However, the exploration and development of geothermal resources are not easy, and one of the key links is the accurate measurement of geothermal temperature. This not only relates to the evaluation and mining efficiency of geothermal resources, but also directly affects the design and operation safety of geothermal power stations.

[0003] Traditional geothermal temperature measurement methods often rely on manual handheld temperature measurement instruments for borehole temperature measurement. This method not only consumes time and effort, but is also greatly affected by human factors, and the temperature measurement accuracy is difficult to guarantee. In addition, due to the deep geothermal borehole and complex and variable geological conditions, the traditional temperature measurement method is difficult to realize comprehensive monitoring of the temperature at different depths and different directions in the borehole, resulting in inaccurate geothermal resource evaluation results, which further affects the subsequent mining planning.

[0004] With the progress of science and technology, especially the rapid development of sensor technology, communication technology and automatic control technology, geothermal temperature measurement technology has also ushered in innovation. At present, some geothermal exploration equipment based on automatic temperature measurement system has appeared in the market, but these devices still have many shortcomings in temperature measurement accuracy, temperature measurement range, protection performance and data transmission. For example, some devices are easily affected by external environmental interference during temperature measurement, resulting in inaccurate temperature measurement data; some devices are difficult to realize comprehensive temperature measurement at different depths and different directions in the borehole due to design defects; some devices have the problem of data delay or loss in data transmission, affecting the real-time and accuracy of geothermal data. INVENTION CONTENTS

[0005] 1. Technical problem to be solved

[0006] In view of the problems existing in the prior art, the purpose of the utility model is to provide a temperature detector for geothermal exploration, which adopts an infrared thermometer as a temperature measurement element and combines a precise transmission mechanism and a temperature measurement hole design to realize accurate measurement of temperature at different depths and different directions in a geothermal borehole. The infrared thermometer has the characteristics of non-contact temperature measurement, which can avoid the error caused by contact in traditional temperature measurement methods. At the same time, through the intermittent alignment of the temperature measurement hole one and the temperature measurement hole two, the interference of the external environment on the temperature measurement result can be further reduced, and the temperature measurement accuracy can be improved.

[0007] 2. Technical scheme

[0008] To solve the above problems, the utility model adopts the following technical scheme.

[0009] A geothermal exploration temperature measuring device, including stabilizing seat, the stabilizing seat upper end fixedly connected with guide pipe, a plurality of uniformly distributed L type reinforcing frame are fixedly connected between the guide pipe and stabilizing seat, the matched temperature measuring tube is inserted in the guide pipe, the temperature measuring tube is fixedly connected with the mounting plate in the upper end, the mounting plate is fixedly installed with the big torque motor and is equipped with the through hole, the output of mounting plate passes through the through hole and is fixedly connected with transmission rod, the transmission rod lower end is fixedly connected with temperature measuring assembly.

[0010] Further, the temperature measuring tube includes a pipe body, the pipe body upper and lower ends are fixedly connected with the butt joint disc, a plurality of annular array distribution installation holes are opened in the butt joint disc, the matched nut pair is installed in the installation hole, the nut pair includes screw rod and nut, a plurality of pipe bodies can be connected together as a whole through the nut pair, so as to improve the temperature measuring depth.

[0011] Further, the transmission rod includes a main rod, the main rod lower end is fixedly connected with the connecting rod, the connecting rod outer end is fixedly connected with a plurality of annular array distribution limit blocks, the main rod upper end is equipped with the butt joint hole matched with the connecting rod and limit block, the transmission connection between the main rods can be realized by inserting the connecting rod and limit block into the butt joint hole, and a plurality of transmission rods can be driven to rotate simultaneously by relying on the big torque motor.

[0012] Further, the temperature measuring tube is fixedly installed with the fixed frame in the upper and lower ends, the bearing matched with the main rod is fixedly installed at the center of the fixed frame, and the main rod is rotatably installed on the inner side of the bearing, and the transmission rod can be stably rotated in the temperature measuring tube through the bearing.

[0013] Further, a plurality of annular array distribution temperature measuring holes one are opened in the outer end of the temperature measuring tube, and the temperature measuring holes one are kept at the same height with the temperature measuring assembly, the temperature measuring assembly can measure the temperature in different directions through the temperature measuring holes one, and the coverage area is improved.

[0014] Further, the temperature measuring assembly includes a rotating platform fixedly sleeved on the transmission rod, the rotating platform upper end is fixedly connected with the protective ring, the infrared temperature measuring instrument is fixedly installed in the inner end of the protective ring, the temperature measuring hole two corresponding with the infrared temperature measuring instrument is opened in the protective ring, the whole rotating of the temperature measuring assembly can be driven by the transmission rod, the protective ring shields the temperature measuring hole one in the normal state, so as to avoid the interference of external environment and even damage the infrared temperature measuring instrument, when reaching the specified depth for temperature measurement, the infrared temperature measuring instrument can be aligned with the temperature measuring hole one through the rotation of the temperature measuring hole two, so as to carry out the temperature measurement without shielding, which can ensure the temperature measurement accuracy and play the protection effect.

[0015] 3. Beneficial effects

[0016] Compared with the prior art, the utility model has the advantages of:

[0017] (1) the temperature measuring device can realize accurate measurement of the temperature at different depths and different directions in the geothermal drilling hole by adopting an infrared thermometer as a temperature measuring element and combining a precise transmission mechanism and a temperature measuring hole, the infrared thermometer has the characteristics of non-contact temperature measurement, can avoid errors caused by contact in the traditional temperature measurement method, and can further reduce the interference of the external environment on the temperature measurement result and improve the temperature measurement precision through intermittent alignment of the temperature measuring hole one and the temperature measuring hole two.

[0018] (2) the temperature measuring device can realize measurement of the temperature in a deep hole by selecting a proper number of temperature measuring tubes according to the actual drilling depth and connecting the temperature measuring tubes, and the infrared thermometer on the temperature measuring assembly can be rotated by the transmission rod to realize temperature measurement in different directions, thereby expanding the temperature measurement range and improving the comprehensiveness of the geothermal data.

[0019] (3) the temperature measuring device is provided with a protective ring and a temperature measuring hole two on the temperature measuring assembly, the protective ring shields the temperature measuring hole one in the normal state to avoid interference or damage of the infrared thermometer by the external environment, and when the temperature is measured at a specified depth, the temperature measuring hole two is aligned with the temperature measuring hole one, and the infrared thermometer is used for temperature measurement without shielding. This design can guarantee the temperature measurement precision, has good protection effect, and prolongs the service life of the temperature measuring device. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a structural schematic view of the utility model;

[0021] Figure 2 is a sectional view of the temperature measuring tube part of the utility model;

[0022] Figure 3 is a structural schematic view of the transmission rod of the utility model;

[0023] Figure 4 is a structural schematic view of the temperature measuring assembly of the utility model.

[0024] Explanation of reference numerals in the drawings:

[0025] 1, stabilizing seat; 2, guide pipe; 3, L-shaped reinforcing frame; 4, temperature measuring tube; 401, tube body; 402, butt joint disc; 403, nut pair; 5, temperature measuring hole one; 6, mounting plate; 7, large torque motor; 8, transmission rod; 801, main rod; 802, connecting rod; 803, limiting block; 804, butt joint hole; 9, temperature measuring assembly; 901, rotating platform; 902, protective ring; 903, infrared thermometer; 904, temperature measuring hole two; 10, fixing frame; 11, bearing. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0027] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom end" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "sleeved / connected", "connected" and the like should be broadly understood, for example, "connected" can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, can be electrically connected; can be directly connected, can be indirectly connected through an intermediate medium, and can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0029] Embodiment 1:

[0030] Please refer to Figures 1-4 A temperature measuring device for geothermal exploration, comprising a stabilizing seat 1, a guide pipe 2 is fixedly connected to the upper end of the stabilizing seat 1, a plurality of uniformly distributed L-shaped reinforcing frames 3 are fixedly connected between the guide pipe 2 and the stabilizing seat 1, a matching temperature measuring pipe 4 is inserted in the guide pipe 2, an installation plate 6 is fixedly connected to the upper end in the temperature measuring pipe 4, a large torque motor 7 is fixedly installed on the installation plate 6 and a through hole is formed, the output end of the installation plate 6 penetrates through the through hole and is fixedly connected with a transmission rod 8, and a temperature measuring assembly 9 is fixedly connected to the lower end of the transmission rod 8.

[0031] The temperature measuring pipe 4 comprises a pipe body 401, the upper and lower ends of the pipe body 401 are fixedly connected with butt joint discs 402, a plurality of annular arrayed mounting holes are formed in the butt joint discs 402, matching nut pairs 403 are mounted in the mounting holes, the nut pairs 403 comprise a screw rod and a nut, and a plurality of pipe bodies 401 can be connected together as a whole through the nut pairs 403, so as to improve the temperature measuring depth.

[0032] The transmission rod 8 comprises a main rod 801, a connecting rod 802 fixedly connected to the lower end of the main rod 801, a plurality of limiting blocks 803 arranged in an annular array and fixedly connected to the outer end of the connecting rod 802, and a butt joint hole 804 formed in the upper end of the main rod 801 and matched with the connecting rod 802 and the limiting blocks 803. By inserting the connecting rod 802 and the limiting blocks 803 into the butt joint hole 804, the transmission connection between the main rods 801 can be realized, and the plurality of transmission rods 8 can be synchronously driven to rotate by the large-torque motor 7.

[0033] The fixed frame 10 is fixedly installed at the upper and lower ends of the temperature measuring tube 4, a bearing 11 matched with the main rod 801 is fixedly installed at the center of the fixed frame 10, and the main rod 801 is rotatably installed on the inner side of the bearing 11. The transmission rod 8 can be stably rotated in the temperature measuring tube 4 through the bearing 11.

[0034] A plurality of temperature measuring holes 5 arranged in an annular array are formed in the outer end of the temperature measuring tube 4, and the temperature measuring holes 5 are kept at the same height as the temperature measuring assembly 9. The temperature measuring assembly 9 can measure the temperature in different directions through the temperature measuring holes 5, thereby improving the coverage area.

[0035] The temperature measuring assembly 9 comprises a rotating platform 901 fixedly sleeved on the transmission rod 8, a protective ring 902 fixedly connected to the upper end of the rotating platform 901, an infrared temperature measuring instrument 903 fixedly installed at the inner end of the protective ring 902, and a temperature measuring hole 904 corresponding to the infrared temperature measuring instrument 903 formed in the protective ring 902. The transmission rod 8 can drive the temperature measuring assembly 9 to rotate as a whole. In the normal state, the protective ring 902 shields the temperature measuring holes 5 to avoid the interference of the external environment and even damage the infrared temperature measuring instrument 903. When the temperature is measured at the specified depth, the infrared temperature measuring instrument 903 can be used for temperature measurement without shielding when the temperature measuring hole 904 is aligned with the temperature measuring hole 5, thereby ensuring the temperature measurement accuracy and achieving the protection effect.

[0036] In use, the stable seat 1 can be installed at the existing drilling hole, a proper number of temperature measuring tubes 4 are selected according to the hole depth and connected as a whole, and then the temperature measuring tubes 4 are placed into the drilling hole along the guide pipe 2 by using a crane or other equipment. When the temperature measuring tubes 4 are lowered to the specified depth, the large-torque motor 7 is started to synchronously drive the plurality of transmission rods 8 to rotate, and then the plurality of temperature measuring assemblies 9 simultaneously start the temperature measurement work. The temperature is measured when the temperature measuring hole 904 is intermittently coincided with the temperature measuring hole 5, and the temperature in different directions at different depths can be measured at the same time, so that more comprehensive geothermal data can be obtained.

[0037] It is worth noting that the infrared temperature measuring instrument 903 can be connected with a background monitoring center through a wireless communication module, so that the temperature data can be rapidly sent to the background for processing.

[0038] The above merely describes a preferred embodiment of the present application; the scope of protection of the present application is not limited thereto. Any skilled person in the art, according to the technical scheme and improvement concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered in the scope of protection of the present application.

Claims

1. A temperature measuring device for geothermal exploration, characterized by: Including stable seat (1), the upper end of stable seat (1) is fixedly connected with guide pipe (2), a plurality of evenly distributed L-shaped reinforcing frames (3) are fixedly connected between guide pipe (2) and stable seat (1), the matching temperature measuring pipe (4) is inserted in guide pipe (2), the mounting plate (6) is fixedly connected in temperature measuring pipe (4), the large torque motor (7) is fixedly installed on the mounting plate (6) and is provided with a through hole, the output end of the mounting plate (6) penetrates through the through hole and is fixedly connected with the transmission rod (8), the temperature measuring assembly (9) is fixedly connected to the lower end of the transmission rod (8).

2. The temperature measuring device according to claim 1, wherein: The temperature measuring pipe (4) includes a pipe body (401), the upper and lower ends of the pipe body (401) are fixedly connected with butt joint discs (402), a plurality of annular array distribution mounting holes are formed in the butt joint discs (402), and matched nut pairs (403) are mounted in the mounting holes, the nut pair (403) includes a screw rod and a nut.

3. The temperature measuring device according to claim 2, wherein: The transmission rod (8) includes a main rod (801), the lower end of the main rod (801) is fixedly connected with a connecting rod (802), a plurality of annular array distribution limiting blocks (803) are fixedly connected to the outer end of the connecting rod (802), and a butt joint hole (804) matched with the connecting rod (802) and the limiting block (803) is formed in the upper end of the main rod (801).

4. The temperature measuring device according to claim 3, wherein: The temperature measuring pipe (4) is fixedly installed with a fixed frame (10) at the upper and lower ends, the bearing (11) matched with the main rod (801) is fixedly installed at the center of the fixed frame (10), and the main rod (801) is rotatably installed on the inner side of the bearing (11).

5. The temperature measuring device according to claim 1, wherein: A plurality of annular array distribution temperature measuring holes (5) are formed in the outer end of the temperature measuring pipe (4), and the temperature measuring holes (5) are kept at the same height with the temperature measuring assembly (9).

6. The temperature measuring device according to claim 5, wherein: The temperature measuring assembly (9) includes a rotating platform (901) fixedly sleeved on the transmission rod (8), the upper end of the rotating platform (901) is fixedly connected with a protective ring (902), the inner end of the protective ring (902) is fixedly installed with an infrared temperature measuring instrument (903), and the protective ring (902) is provided with a temperature measuring hole (904) corresponding to the infrared temperature measuring instrument (903).

Images