Ground temperature detection device and detection system for ground source heat pump system

Abstract

The invention discloses a ground temperature detection device and system for a ground source heat pump system, and relates to the technical field of ground temperature detection. The device comprises a shell and three drill bits installed on the outer side of the shell, a push-pull lifting assembly and a detection assembly are arranged in the shell, and the push-pull lifting assembly is located over the detection assembly; the push-pull lifting assembly comprises a rotating disc, the rotating disc is movably arranged on the inner wall of a circular groove formed in the shell, three strip-shaped sliding holes are evenly formed in the surface of the rotating disc, and the interior of each sliding hole is connected with one end of a push-pull rod through a movable shaft. In the drilling process, the temperature detector is contained in the shell, after drilling is conducted to the designated depth, the detection device is started, the drill bit moves outwards and downwards to drive the movable bottom plate to move downwards to expose the mounting hole, the temperature detector penetrates through the mounting hole to make contact with rock stratum soil, and therefore the temperature of the soil rock stratum is measured; therefore, the temperature detector can be well protected from being damaged in the drilling process.

Description

Technical Field

[0001] The present invention belongs to the technical field of ground temperature detection, and particularly relates to a ground temperature detection device and a detection system for a ground source heat pump system. Background Technique

[0002] A ground source heat pump uses ground source energy (soil, groundwater, surface water, low-temperature geothermal water, and tail water) as the cooling source for the heat pump to cool in summer and the low-temperature heat source for heating in winter, and is also a system for realizing heating, cooling, and domestic hot water. It is used to replace the traditional mode of using refrigerators and boilers for air conditioning, heating, and heat supply. It is an effective way to improve the urban atmospheric environment and save energy, and is also a new development direction for the utilization of ground source energy in China. The working principle of the ground source heat pump is relatively simple. During summer operation, the evaporator of the heat pump unit absorbs the heat in the building and reaches the refrigeration air conditioner. At the same time, the condenser discharges the heat to the ground through heat exchange with groundwater. During winter operation, the evaporator of the heat pump unit absorbs the heat of groundwater as the heat source, and through the heat pump cycle, the condenser provides hot water for heating the building interior.

[0003] Since the buried pipe is buried deep underground, when referring to data regularly, unexpected situations are likely to occur, resulting in the loss of temperature data, so that the ground temperature cannot be accurately monitored in real time. Therefore, a ground temperature measurement device is needed to measure the underground temperature. When the traditional ground temperature measurement device drives the drill pipe to rotate and drill into the ground with the drill bit, the probe of the temperature detector may collide with the underground soil, thus damaging the probe and not providing good protection for the probe. At the same time, when the drill bit drills, it rubs against the soil or rock formation, generating heat. Since the distance between the drill bit and the temperature detector is relatively close, it may affect the measurement of the underground soil temperature by the probe of the temperature detector, thus affecting the accuracy of the temperature detection data.

[0004] The existing ground temperature detection device cannot provide good protection for the probe of the temperature detector, and at the same time, the heat generated by the drill bit drilling the soil affects the accuracy of the ground temperature detection data. For this reason, the present invention proposes a ground temperature detection device and a detection system for a ground source heat pump system. Summary of the Invention

[0005] The purpose of the present invention is to provide a ground temperature detection device and a detection system for a ground source heat pump system, so as to solve the problems that the existing ground temperature detection device cannot provide good protection for the probe of the temperature detector, and at the same time, the heat generated by the drill bit drilling the soil affects the accuracy of the ground temperature detection data.

[0006] To solve the above technical problems, the present invention is realized through the following technical solutions:

[0007] The present invention relates to a geothermal temperature detection device for a ground source heat pump system, which includes a housing and three drill bits installed on its outer side. A push-pull lifting component and a detection component are arranged inside the housing. The push-pull lifting component is located directly above the detection component. The housing serves as a shell to protect the internal structural components. The drill bits rotate downward to drill the rock formation under the drive of a drilling device;

[0008] The push-pull lifting component includes a turntable, which is movably arranged on the inner wall of a circular groove opened inside the housing. Three strip-shaped sliding holes are evenly opened on the surface of the turntable. One end of a push rod is connected to each sliding hole through a movable shaft, and the other end of the push rod is welded to the inner side of the drill bit. One end of the drill bit protrudes and is movably arranged inside a rectangular groove opened on the outer wall of the housing. During the rotation of the turntable, the movable shaft is driven to slide inside the strip-shaped sliding hole through the strip-shaped sliding hole arranged on its surface, thereby driving the push rod connected to the movable shaft to perform a linear motion, and thus driving the protrusion at one end of the drill bit to slide inside the rectangular groove;

[0009] The detection component includes a lower pressure plate, which is vertically movably arranged in a circular groove inside the housing, and the bottom of the lower pressure plate is movably connected to three annularly distributed sliders. The top of each slider is beveled and fits against the inclined side of the lower pressure plate; One side of the slider is fixedly connected to a temperature detector through a connecting rod. The three groups of temperature detectors are annularly arranged below the inclined side of the lower pressure plate. During the downward linear motion of the lower pressure plate, the three sliders are squeezed, causing the sliders to move on the slide rails until the temperature detectors move to the outside of the device through the mounting holes and contact the rock formation soil, so as to detect the temperature of the rock formation soil. Since the top of the slider is beveled and the side of the lower pressure plate is also beveled, the lower pressure plate can squeeze the slider to translate to one side when it moves downward.

[0010] Preferably, a mounting part is welded to the top of the housing, and the mounting part is used to connect to the drill rod of the drilling device; Three rectangular grooves are opened on the outside of the housing. The three rectangular grooves are annularly arranged on the outside of the housing. One end of the drill bit protrudes and is movably arranged inside each rectangular groove. An elastic member is installed at the bottom of each rectangular groove, and the elastic member is connected to the bottom of the protrusion at one end of the drill bit. A bevel block is welded to the top of each rectangular groove, and the inclined surface of the bevel block contacts the top of the protrusion at one end of the drill bit. The top of the protrusion at one end of the drill bit is beveled; A through hole is opened on one side of the inner surface of each rectangular groove, and the push rod is movably arranged inside the through hole; Under the action of the bevel block, when the drill bit slides out of the rectangular groove, since the top of the protrusion at one end of the drill bit is beveled, the drill bit will be squeezed downward by the bevel block, and the path of the drill bit is arc-shaped, that is, the drill bit slides out of the rectangular groove and downward at the same time. The elastic member plays a role in resetting.

[0011] Preferably, the push-pull lifting assembly further includes a sleeve. The top of the sleeve is welded to the bottom of the circular groove inside the housing. A telescopic rod is movably connected inside the sleeve. The bottom end of the telescopic rod is welded to the top of the drive motor. The bottom output end of the drive motor is fixedly connected to the output shaft. The bottom of the output shaft is fixedly connected to the center point of the top of the turntable. The movable shaft is movably arranged inside the strip-shaped sliding hole. The sleeve and the telescopic rod are used to cooperate with the push-pull lifting assembly to lift and lower. The drive motor is used to drive the output shaft to drive the turntable to rotate. When the drill bit moves outwards from the rectangular groove, the drill bit also moves downwards. Since the drill bit is connected to the turntable through the push rod, the turntable will be driven to move directly downwards at the same time. The detection assembly and the movable bottom plate connected below the turntable will move downwards at the same time.

[0012] Preferably, the detection assembly further includes a lead screw. The top end of the lead screw is fixedly connected to the center point of the bottom of the turntable. A movable bearing is threadedly connected to the circumferential side of the lead screw. One extension rod is fixedly connected to each of the opposite sides of the outer surface of the movable bearing. The bottom ends of the two extension rods are both welded to the top of the connection block. The bottom end of the connection block is fixedly connected to the top end of the lower pressing plate. The lead screw rotates under the drive of the turntable, thereby driving the movable bearing threadedly connected to its circumferential side to move downwards. The extension rod is used to connect the movable bearing and the connection block, and the connection block is used to connect the lower pressing plate.

[0013] Preferably, an annular groove is formed at the bottom edge position of the housing. A movable bottom plate is movably connected inside the annular groove. The movable bottom plate is a cylindrical interface with an open top. Three slide rails are annularly arranged around the center point on the inner bottom surface of the movable bottom plate. The top of each slide rail is movably connected to a slider.

[0014] Preferably, three mounting holes are formed in the side surface of the movable bottom plate. The temperature detector is movably arranged on both the inside and outside of the mounting hole.

[0015] A ground temperature detection system for a ground source heat pump system includes a main control module, a drill pipe platform, a ground temperature detection device, and a temperature analysis module that are communicatively connected to the main control module for control.

[0016] Main control module: used to coordinate the information data transmission between the other modules of the system, and perform relevant processing on the data to ensure the integrity during the data transmission process.

[0017] Drill pipe platform: used to control the drilling equipment to drill into the underground soil and rock layers at different depths. According to the measurement requirements at different positions, after drilling to a measurement depth point each time, stop drilling, and continue drilling downwards after the temperature measurement at this depth is completed.

[0018] Ground temperature detection device: used to control three temperature detectors to detect the ground temperatures in different directions on the same plane, and output the temperature detection data to the temperature analysis module.

[0019] Temperature analysis module: It is used to obtain the measurement data of the ground temperature by the ground temperature detection device, and analyze the temperature data in different directions at different depths to obtain the detection result of the ground temperature.

[0020] Preferably, the temperature analysis module includes a real-time monitoring unit and a processing and control unit;

[0021] Detection unit: It is used to detect the ground temperature detection device, obtain the rock layer depth information and real-time temperature change information of the ground temperature detection device, and compare the rock layer depth information and real-time temperature change information with the preset rock layer depth setting value and preset real-time temperature change setting value respectively to obtain the measurement state change data of the ground temperature detection device.

[0022] Processing and control unit: It is used to calculate the measurement state change data. The measurement state change data represents the difference between the real-time temperature change information detected by the ground temperature detection device and the preset real-time temperature change setting value. If the difference exceeds the preset ground temperature threshold range, the rock layer depth data and the real-time temperature change data at this rock layer depth are recorded as abnormal points.

[0023] Preferably, it further includes a data storage module, and the data storage module is used to store the rock layer depth information, the real-time temperature change information and the measurement state change data for the management personnel to access the data.

[0024] The present invention has the following beneficial effects:

[0025] 1. By setting the push-pull lifting assembly in the present invention, when the detection device drills to the specified depth through the drilling equipment, the driving motor is started to drive the turntable to rotate. After the turntable rotates, the movable shaft inside it slides in the strip-shaped sliding hole, thereby driving one end of the drill bit connected by the push rod to slide outwards towards the outside of the rectangular groove. When one end of the drill bit slides outwards towards the outside of the rectangular groove, the inclined plane block at the top of the rectangular groove presses down on one end of the drill bit. Therefore, the drill bit not only slides outwards towards the outside of the rectangular groove, but also moves vertically downwards. Since the bottom end of the drill bit is connected to the movable bottom plate through a small movable block, when the drill bit moves downwards, it drives the movable bottom plate to move downwards as well. The operation process of this structure can make the drill bit that generates heat due to drilling rock move outwards for a certain distance, away from the temperature detector during the measurement process, thereby reducing the influence of the drill bit temperature on the measurement of the temperature detector.

[0026] 2. By providing a detection component in the present invention, when the turntable moves vertically downward, it drives the screw rod below to move simultaneously. The screw rod rotates under the drive of the turntable, thereby driving the movable bearing threadedly connected to its circumferential side to move downward. During the linear downward movement of the lower pressing plate, it squeezes the three sliders, causing the sliders to move on the slide rails until the temperature detector moves to the outside of the device through the mounting hole and contacts the rock layer soil, so as to detect the temperature of the rock layer soil. Since the top of the slider is inclined and the side of the lower pressing plate is also inclined, the lower pressing plate can squeeze the slider to translate to one side when moving downward; this structure can house the temperature detector inside the housing during the drilling process. When the drilling reaches the specified depth, the detection device is started, the drill bit moves outward and downward, driving the movable bottom plate to also move downward to expose the mounting hole, and the temperature detector passes through the mounting hole and contacts the rock layer soil, so as to measure the temperature of the soil and rock layer, and thus can well protect the temperature detector from being damaged during the drilling process.

[0027] 3. By providing a detection component in the present invention, it can measure and monitor the rock layer depth information, real-time temperature change information and measurement state change data in real time, so as to timely discover the possible problems of the ground source heat pump system and then manage the ground source heat pump system. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0029] Figure 1 It is a schematic diagram of the overall structure of the geothermal temperature detection device for the ground source heat pump system provided by the present invention;

[0030] Figure 2 It is a schematic diagram of the sectional structure of the geothermal temperature detection device for the ground source heat pump system provided by the present invention;

[0031] Figure 3 It is a schematic diagram of the internal structure of the geothermal temperature detection device for the ground source heat pump system provided by the present invention;

[0032] Figure 4 It is a schematic diagram of the push-pull lifting component and the detection component structure of the geothermal temperature detection device for the ground source heat pump system provided by the present invention;

[0033] Figure 5 It is a schematic diagram of the top view structure of the push-pull lifting component of the geothermal temperature detection device for the ground source heat pump system provided by the present invention;

[0034] Figure 6Schematic diagram of the detection component structure of the ground temperature detection device for the ground source heat pump system provided by the present invention.

[0035] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0036] 1. Mounting member; 2. Outer shell; 3. Drill bit; 4. Sleeve; 5. Telescopic rod; 6. Driving motor; 7. Output shaft; 8. Turntable; 9. Movable shaft; 10. Push-pull rod; 11. Inclined block; 12. Elastic member; 13. Lead screw; 14. Movable bearing; 15. Extension rod; 16. Connecting block; 17. Lower pressing plate; 18. Slide block; 19. Slide rail; 20. Connecting rod; 21. Temperature detector; 22. Movable bottom plate. Specific embodiments

[0037] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0038] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the attached drawings. It is 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 should not be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0039] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "provided with", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] Refer to Figures 1-6 , the present invention is a ground temperature detection device for a ground source heat pump system, including an outer shell 2 and three drill bits 3 installed on its outer side. A push-pull lifting component and a detection component are arranged inside the outer shell. The push-pull lifting component is located directly above the detection component. The outer shell 2 is a housing that protects the internal structural components. The drill bit 3 rotates and drills downward into the rock formation under the drive of a drilling device;

[0041] The push-pull lifting assembly includes a turntable 8 which is movably arranged on the inner wall of a circular groove formed inside the housing 2. Three strip-shaped sliding holes are evenly formed on the surface of the turntable 8. One end of a push-pull rod 10 is connected to each sliding hole through a movable shaft 9, and the other end of the push-pull rod 10 is welded to the inner side surface of the drill bit 3. One end of the drill bit 3 protrudes and is movably arranged inside a rectangular groove formed on the outer wall of the housing 2. During the rotation of the turntable 8, the movable shaft 9 is driven to slide inside the strip-shaped sliding hole through the strip-shaped sliding hole formed on its surface, thereby driving the push-pull rod 10 connected to the movable shaft 9 to perform a linear motion, and thus driving the protruding end of the drill bit 3 to slide inside the rectangular groove;

[0042] The detection assembly includes a lower pressing plate 17 which is vertically movably arranged in a circular groove inside the housing 2, and the bottom of the lower pressing plate 17 is movably connected to three annularly distributed sliders 18. The top of each slider 18 is beveled and fits against the beveled side surface of the lower pressing plate 17; One side surface of the slider 18 is fixedly connected to a temperature detector 21 through a connecting rod 20. The three groups of temperature detectors 21 are annularly arrayed at a position obliquely below the lower pressing plate 17. During the downward linear movement of the lower pressing plate 17, the three sliders 18 are extruded, so that the sliders 18 move on the slide rail until the temperature detector 21 moves to the outside of the device through the mounting hole and contacts the rock formation soil, thereby detecting the temperature of the rock formation soil. Since the top of the slider 18 is beveled and the side surface of the lower pressing plate 17 is also beveled, the lower pressing plate 17 can extrude the slider to translate to one side when moving downward.

[0043] Among them, a mounting member 1 is welded to the top of the housing 2, and the mounting member 1 is used to connect to the drill pipe of the drilling equipment; Three rectangular grooves are formed on the outside of the housing 2, and the three rectangular grooves are annularly arrayed on the outside of the housing 2. One protruding end of the drill bit 3 is movably arranged inside each rectangular groove. An elastic member 12 is installed at the bottom of each rectangular groove, and the elastic member 12 is connected to the bottom of the protruding end of the drill bit 3. A bevel block 11 is welded to the top of each rectangular groove, and the inclined surface of the bevel block 11 contacts the top of the protruding end of the drill bit 3, and the top of the protruding end of the drill bit 3 is processed into a bevel; A through hole is formed on one side surface inside each rectangular groove, and the push-pull rod 10 is movably arranged inside the through hole; Under the action of the bevel block 11, when the drill bit 3 slides out of the rectangular groove, since the top of the protruding end of the drill bit 3 is beveled, the drill bit will be extruded downward by the bevel block 11, and the traveling track of the drill bit 3 is arc-shaped, that is, the drill bit 3 slides out of the rectangular groove and downward at the same time, and the elastic member 12 plays a role in resetting.

[0044] Among them, the push-pull lifting assembly further includes a sleeve 4. The top of the sleeve 4 is welded to the bottom of the circular groove inside the housing 2. A telescopic rod 5 is movably connected inside the sleeve 4. The bottom end of the telescopic rod 5 is welded to the top of the drive motor 6. The bottom output end of the drive motor 6 is fixedly connected to the output shaft 7. The bottom of the output shaft 7 is fixedly connected to the center point of the top of the turntable 8. The movable shaft 9 is movably arranged inside the strip-shaped sliding hole. The sleeve 4 and the telescopic rod 5 are used to cooperate with the push-pull lifting assembly to lift and lower. The drive motor 6 is used to drive the output shaft 7 to drive the turntable 8 to rotate. When the drill bit 3 moves outward from the rectangular groove, the drill bit 3 also moves downward. Since the drill bit 3 is connected to the turntable 8 through the push rod 10, the turntable 8 will be driven to move directly downward at the same time. The detection assembly and the movable bottom plate 22 connected below the turntable 8 will move downward at the same time.

[0045] Among them, the detection assembly further includes a lead screw 13. The top end of the lead screw 13 is fixedly connected to the center point of the bottom of the turntable 8. A movable bearing 14 is threadedly connected to the circumferential side of the lead screw 13. One extension rod 15 is fixedly connected to each of the opposite sides of the outer surface of the movable bearing 14. The bottom ends of the two extension rods 15 are both welded to the top of the connection block 16. The bottom end of the connection block 16 is fixedly connected to the top end of the lower pressing plate 17. The lead screw 13 rotates driven by the turntable 8, thereby driving the movable bearing 14 threadedly connected to its circumferential side to move downward. The extension rod 15 is used to connect the movable bearing 14 and the connection block 16, and the connection block 16 is used to connect the lower pressing plate 17.

[0046] Among them, an annular groove is provided at the bottom edge position of the housing 2. A movable bottom plate 22 is movably connected inside the annular groove. The movable bottom plate 22 is a cylindrical interface with an open upper end. Three slide rails 19 are annularly arranged around the center point on the inner bottom surface of the movable bottom plate 22. The top of each slide rail 19 is movably connected to a slider 18.

[0047] Among them, three mounting holes are provided on the side surface of the movable bottom plate 22. The temperature detector 21 is movably arranged on both the inside and outside of the mounting holes.

[0048] A ground temperature detection system for a ground source heat pump system includes a main control module, as well as a drill pipe platform, a ground temperature detection device, and a temperature analysis module that are communicatively controlled and connected to the main control module;

[0049] Main control module: It is used to coordinate the information data transmission between the other modules of the system, and perform relevant processing on the data to ensure the integrity during the data transmission process;

[0050] Drill pipe platform: It is used to control the drilling equipment to drill into the underground soil and rock formations at different depths. According to the measurement requirements at different positions, after drilling to a measurement depth point each time, the drilling stops. After the temperature measurement at this depth is completed, the drilling continues downward;

[0051] Geothermal temperature detection device: It is used to control three temperature detectors to detect the geothermal temperatures in different directions on the same plane and output the temperature detection data to the temperature analysis module;

[0052] Temperature analysis module: It is used to obtain the measurement data of the geothermal temperature by the geothermal temperature detection device, analyze the temperature data in different directions at different depths, and obtain the detection result of the geothermal temperature.

[0053] Among them, the temperature analysis module includes a real-time monitoring unit and a processing and control unit;

[0054] Detection unit: It is used to detect the geothermal temperature detection device, obtain the rock layer depth information and real-time temperature change information of the geothermal temperature detection device, and compare the rock layer depth information and real-time temperature change information with the preset rock layer depth set value and preset real-time temperature change set value respectively to obtain the measurement state change data of the geothermal exploration device.

[0055] Processing and control unit: It is used to calculate the measurement state change data. The measurement state change data represents the difference between the real-time temperature change information detected by the geothermal temperature detection device and the preset real-time temperature change set value. If the difference exceeds the preset geothermal temperature threshold range, the rock layer depth data and the real-time temperature change data at this rock layer depth are recorded as abnormal points.

[0056] Among them, it also includes a data storage module, which is used to store the rock layer depth information, real-time temperature change information and measurement state change data for the management personnel to access the data.

[0057] The working principle of the present invention is as follows: When the detection device drills to the specified depth through the drilling equipment, the driving motor is started to drive the turntable to rotate. After the turntable rotates, the movable shaft inside it slides inside the strip-shaped sliding hole, thereby driving one end of the drill bit connected by the push rod to slide outwards of the rectangular groove. When one end of the drill bit slides outwards of the rectangular groove, the inclined block at the top of the rectangular groove presses down on one end of the drill bit. Therefore, the drill bit not only slides outwards of the rectangular groove, but also moves vertically downwards. Since the bottom end of the drill bit is connected to the movable bottom plate through a small movable block, when the drill bit moves downwards, it drives the movable bottom plate to move downwards. When the turntable moves vertically downwards, it drives the screw rod below to move at the same time. The screw rod rotates driven by the turntable, thereby driving the movable bearing threadedly connected to its circumferential side to move downwards. During the linear downward movement of the lower pressing plate, it presses three sliders, causing the sliders to move on the slide rails until the temperature detector moves to the outside of the device through the installation hole and contacts the rock layer soil, so as to detect the temperature of the rock layer soil.

[0058] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and what is described in the above embodiments and the specification is only to illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A geothermal temperature detection device for a ground source heat pump system, comprising a housing (2) and three drill bits (3) installed on its outer side, characterized in that: Inside the housing (2), a push-pull lifting component and a detection component are provided, and the push-pull lifting component is located directly above the detection component; The push-pull lifting component includes a turntable (8), the turntable (8) is movably arranged on the inner wall of a circular groove formed inside the housing (2), three strip-shaped sliding holes are evenly formed on the surface of the turntable (8), and one end of a push-pull rod (10) is connected to each sliding hole through a movable shaft (9), and the other end of the push-pull rod (10) is welded to the inner side surface of the drill bit (3), and one end of the drill bit (3) protrudes and is movably arranged inside a rectangular groove formed on the outer wall of the housing (2); The detection component includes a lower pressing plate (17), the lower pressing plate (17) is arranged to move up and down in a circular groove inside the housing (2), and the bottom of the lower pressing plate (17) is movably connected to three annularly distributed sliders (18), the top of each slider (18) is beveled and fits against the beveled side surface of the lower pressing plate (17); one side surface of the slider (18) is fixedly connected to a temperature detector (21) through a connecting rod (20), and the three groups of temperature detectors (21) are annularly arrayed at a position diagonally below the lower pressing plate (17).

2. The geothermal temperature detection device for a ground source heat pump system according to claim 1, characterized in that, A mounting part (1) is welded to the top of the housing (2), and the mounting part (1) is used for connecting with the drill pipe of the drilling equipment; three rectangular grooves are formed outside the housing (2), the three rectangular grooves are annularly arrayed outside the housing (2), one end of the drill bit (3) protrudes and is movably arranged inside each rectangular groove, an elastic member (12) is installed at the bottom of each rectangular groove, the elastic member (12) is connected to the bottom of one end of the drill bit (3) protruding, and a bevel block (11) is welded to the top of each rectangular groove, the inclined surface of the bevel block (11) contacts the top of one end of the drill bit (3) protruding, and the top of one end of the drill bit (3) protruding is processed into a bevel; a through hole is formed on one side surface inside each rectangular groove, and the push-pull rod (10) is movably arranged inside the through hole.

3. The geothermal temperature detection device for a ground source heat pump system according to claim 2, characterized in that, The push-pull lifting component further includes a sleeve (4), the top of the sleeve (4) is welded to the bottom of the circular groove inside the housing (2), a telescopic rod (5) is movably connected inside the sleeve (4), the bottom end of the telescopic rod (5) is welded to the top of a driving motor (6), the bottom output end of the driving motor (6) is fixedly connected to an output shaft (7), and the bottom of the output shaft (7) is fixedly connected to the center point of the top of the turntable (8); the movable shaft (9) is movably arranged inside the strip-shaped sliding hole.

4. The geothermal temperature detection device for a ground source heat pump system according to claim 3, characterized in that, The detection component further includes a lead screw (13), the top end of the lead screw (13) is fixedly connected to the center point of the bottom of the turntable (8), and a movable bearing (14) is threadedly connected to the circumferential side surface of the lead screw (13), and a prolongation rod (15) is fixedly connected to each of the opposite two sides of the outer surface of the movable bearing (14), the bottom ends of the two prolongation rods (15) are welded to the top of an adapter block (16), and the bottom end of the adapter block (16) is fixedly connected to the top end of the lower pressing plate (17).

5. The geothermal temperature detection device for a ground source heat pump system according to claim 4, wherein, An annular groove is provided at the bottom edge of the outer shell (2), and a movable bottom plate (22) is movably connected inside the annular groove. The movable bottom plate (22) is a cylindrical interface with an open upper end. Three slide rails (19) are annularly arranged around the center point on the inner bottom surface of the movable bottom plate (22), and the top of each slide rail (19) is movably connected to a slider (18).

6. The geothermal temperature detection device for a ground source heat pump system according to claim 5, characterized in that, Three mounting holes are provided on the side surface of the movable bottom plate (22), and the temperature detector (21) is movably arranged on both the inner and outer sides of the mounting holes.

7. A ground temperature detection system for a ground source heat pump system, applied to the ground temperature detection device for a ground source heat pump system described in claim 6, characterized in that, It includes a main control module, a drill pipe platform, a ground temperature detection device, and a temperature analysis module that are communicatively connected to the main control module; Main control module: It is used to coordinate the information data transmission between the other modules of the system, perform relevant processing on the data, and ensure the integrity during the data transmission process; Drill pipe platform: It is used to control the drilling equipment to drill the underground soil and rock layers to different depths. According to the measurement requirements at different positions, after drilling to a measurement depth point, the drilling stops, and after the temperature measurement at this depth is completed, the drilling continues downward; Ground temperature detection device: It is used to control three temperature detectors to detect the ground temperature in different directions on the same plane, and output the temperature detection data to the temperature analysis module; Temperature analysis module: It is used to obtain the ground temperature measurement data of the ground temperature detection device, and analyze the temperature data in different directions at different depths to obtain the detection result of the ground temperature.

8. The geothermal temperature detection system for a ground source heat pump system according to claim 7, characterized in that, The temperature analysis module includes a real-time monitoring unit and a processing and control unit; Detection unit: It is used to detect the ground temperature detection device, obtain the rock layer depth information and real-time temperature change information of the ground temperature detection device, and respectively compare the rock layer depth information and real-time temperature change information with the preset rock layer depth setting value and preset real-time temperature change setting value to obtain the measurement state change data of the ground temperature detection device, Processing and control unit: It is used to calculate the measurement state change data. The measurement state change data represents the difference between the real-time temperature change information detected by the ground temperature detection device and the preset real-time temperature change setting value. If the difference exceeds the preset ground temperature threshold range, the rock layer depth data and the real-time temperature change data at this rock layer depth are recorded as abnormal points.

9. The geothermal temperature detection system for a ground source heat pump system according to claim 8, characterized in that, It also includes a data storage module, which is used to store the rock layer depth information, the real-time temperature change information, and the measurement state change data for the management personnel to access the data.

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