Butt joint device of heat exchange well pipe

Abstract

The utility model provides a butt joint device of a heat exchange well pipe. The butt joint device comprises a support; the butt joint piece is arranged on the support, the butt joint piece comprises a vertically-arranged guide shaft, an upper pipe fixing piece and a lower pipe fixing piece, the upper pipe fixing piece and the lower pipe fixing piece are arranged on the guide shaft in a penetrating mode and are coaxial, and the upper pipe fixing piece is arranged on the guide shaft in a position adjustable mode through an adjusting piece; the upper pipe fixing piece and the lower pipe fixing piece both have an open state for releasing the heat exchange well pipe and a closed state for clamping the heat exchange well pipe. By means of the technical scheme, the problem that in the prior art, the connection quality and the pipe lowering difficulty of the heat exchange well pipe cannot be considered at the same time can be effectively solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of middle-deep groundwater water taking, in particular to a butt joint device of heat exchange well pipe. BACKGROUND

[0002] The middle-deep heat exchange well needs to be connected with the concentric heat exchange pipe to realize the medium circulation heat absorption, so as to achieve the purpose of developing the geothermal resources. Due to the well depth, a plurality of heat exchange pipes need to be connected together to reach the length of the well depth.

[0003] In the prior art, the method for connecting a plurality of heat exchange pipes together is usually as recorded in the publication No. CN112900545A, that is, a plurality of pipe bodies are horizontally placed on the ground, and the two end portions of the adjacent two pipe bodies are connected by the butt welding machine. The above-mentioned connection method is simple, but the subsequent pipe lowering method is complex and has poor reliability. UTILITY MODEL CONTENT

[0004] The main purpose of the utility model is to provide a butt joint device of heat exchange well pipe, so as to solve the problem that the connection quality and pipe lowering difficulty of the heat exchange well pipe cannot be considered in the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a butt joint device of heat exchange well pipe, which comprises a support, a butt joint piece arranged on the support, the butt joint piece comprising a vertical guide shaft, an upper pipe fixing piece and a lower pipe fixing piece coaxially arranged on the guide shaft, the upper pipe fixing piece being adjustably arranged on the guide shaft through an adjusting piece, and the upper pipe fixing piece and the lower pipe fixing piece both having an open state for releasing the heat exchange well pipe and a closed state for clamping the heat exchange well pipe.

[0006] In one embodiment, the butt joint piece is movably arranged on the support in the horizontal direction, and the butt joint piece has a working position for making the upper pipe fixing piece and the lower pipe fixing piece opposite to the well mouth and a avoiding position away from the well mouth.

[0007] In one embodiment, the butt joint device of heat exchange well pipe further comprises a sliding frame comprising a frame body and wheels arranged below the frame body, and the butt joint piece is arranged on the sliding frame.

[0008] In one embodiment, a sliding groove for limiting the wheels is arranged on the support.

[0009] In one embodiment, the support comprises two limiting rods arranged in parallel, a horizontal connecting rod connecting the two limiting rods, and a supporting rod supporting the limiting rods, the limiting rods are provided with the sliding grooves, and the horizontal connecting rod and the two limiting rods form an avoiding opening with one side opening, and the upper pipe fixing piece and the lower pipe fixing piece are opposite to the avoiding opening when the butt joint piece is in the avoiding position.

[0010] In one embodiment, the docking piece further comprises a bottom frame and a top frame vertically spaced apart, and a connecting piece connected between the bottom frame and the top frame, the guide shaft is fixed between the bottom frame and the top frame, the bottom frame is fixed on the sliding frame, and the sliding frame further comprises an inclined rod supported between the frame body and the top frame.

[0011] In one embodiment, the docking piece is arranged at one end of the frame body, and the sliding frame further comprises a counterweight arranged at the other end of the frame body.

[0012] In one embodiment, the upper pipe fixing piece comprises two upper fixing rings vertically spaced apart, and the lower pipe fixing piece comprises two lower fixing rings vertically spaced apart.

[0013] In one embodiment, the upper fixing ring comprises a first half ring and a second half ring connected by a hinge, and a first locking piece for locking the first half ring and the second half ring, and the lower fixing ring comprises a third half ring and a fourth half ring connected by a hinge, and a second locking piece for locking the third half ring and the fourth half ring.

[0014] In one embodiment, the docking device of the heat exchange well pipe further comprises a driving device for driving the docking piece to move, a sensor arranged on the docking piece for detecting whether the docking piece moves to the working position, and a control device electrically connected with the sensor and the driving device.

[0015] According to the technical scheme of the utility model, first, the first section of heat exchange well pipe is fixed on the lower pipe fixing piece, and the second section of heat exchange well pipe is fixed on the upper pipe fixing piece, after the fixing is completed, the two heat exchange well pipes have a gap between them. The high-temperature plate is inserted into the gap to heat the end part of the heat exchange well pipe, after the heating is completed, the position of the upper pipe fixing piece is lowered by the adjusting piece so that the end parts of the two heat exchange well pipes are in contact, so as to complete the heat melting connection of the two heat exchange well pipes. The two heat exchange well pipes become heat melting connection pipes under the above operation, then, the upper pipe fixing piece and the lower pipe fixing piece are in the open state, and the heat melting connection pipe is lowered into the well by the crane. After being lowered to a certain height, the lower pipe fixing piece is switched to the closed state to clamp the heat melting connection pipe. The crane hoists the third section of heat exchange well pipe and fixes it on the upper pipe fixing piece, and the above operation is repeated until the heat melting connection pipe reaches the predetermined length and is lowered into the well, so as to complete the docking and lowering of the heat exchange well pipe. Therefore, according to the technical scheme of the embodiment, the docking piece is vertically docked, and the heat melting and lowering of the heat exchange well pipe are alternately performed, so as to ensure the connection quality of the heat exchange well pipe on one hand, and reduce the difficulty of lowering the heat exchange well pipe on the other hand.

[0016] In addition to the objects, features and advantages described above, the utility model has other objects, features and advantages. The utility model will be further described in detail below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0017] The drawings constituting part of the present invention are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0018] Figure 1 A schematic diagram of the three-dimensional structure of the heat exchange well pipe docking device according to an embodiment of the present invention is shown when the docking piece is in the working position;

[0019] Figure 2 Shown Figure 1 A front view of the docking device for the heat exchange well pipe;

[0020] Figure 3 Shown Figure 1 A schematic diagram of the three-dimensional structure of the heat exchange well pipe docking device when the docking piece is in the avoidance position; and

[0021] Figure 4 Shown Figure 1 Schematic diagram of the three-dimensional structure of the upper tube fixing member and the lower tube fixing member of the docking device of the heat exchange well pipe when they are in the open state.

[0022] The above drawings include the following reference numerals:

[0023] 1. Heat exchange well pipe; 2. Avoidance; 10. Bracket; 11. Limit rod; 111. Slide groove; 12. Horizontal connecting rod; 13. Support rod; 20. Docking piece; 21. Guide shaft; 22. Upper tube fixing piece; 221. Upper fixing ring; 222. First half ring; 223. Second half ring; 23. Lower tube fixing piece; 231. Lower fixing ring; 232. Third half ring; 233. Fourth half ring; 24. Base frame; 25. Top frame; 26. Connecting piece; 30. Sliding frame; 31. Frame body; 32. Wheels; 33. Tilt rod. DETAILED DESCRIPTION

[0024] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0025] In order to help those skilled in the art better understand the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0026] It should be noted that the terms "first", "second", and the like in the description and in the claims of the utility model of the present application and the above-mentioned drawings are used to distinguish similar objects, and do not have to be used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged under appropriate circumstances, so that the embodiments of the utility model described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or equipment including a series of steps or units does not have to be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or equipment.

[0027] It should be noted that the terms used herein are only for the purpose of describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form unless the context clearly indicates otherwise, and furthermore, it should be understood that when the terms "comprise" and / or "include" are used in the specification, there is a feature, step, operation, device, component and / or combination thereof.

[0028] As shown in Figures 1 to 4 The butt joint device of the heat exchange well pipe of the embodiment includes a support 10 and a butt joint piece 20. The butt joint piece 20 is arranged on the support 10, and the butt joint piece 20 includes a vertical guide shaft 21, an upper pipe fixing piece 22 and a lower pipe fixing piece 23 coaxially arranged on the guide shaft 21. The upper pipe fixing piece 22 is adjustably arranged on the guide shaft 21 through an adjusting piece, and the upper pipe fixing piece 22 and the lower pipe fixing piece 23 both have an open state for releasing the heat exchange well pipe 1 and a closed state for clamping the heat exchange well pipe 1.

[0029] The technical scheme is applied, the first section of heat exchange well pipe 1 is fixed on the lower pipe fixing part 23, the second section of heat exchange well pipe 1 is fixed on the upper pipe fixing part 22, after the fixing is completed, the two heat exchange well pipes 1 have a gap. The high-temperature plate is inserted into the gap to heat the end of the heat exchange well pipe 1, after the heating is completed, the position of the upper pipe fixing part 22 is lowered by the adjusting part to make the ends of the two heat exchange well pipes 1 contact, to complete the heat melting connection of the two heat exchange well pipes 1. The two heat exchange well pipes 1 become heat melting connection pipes under the above operation, then, the upper pipe fixing part 22 and the lower pipe fixing part 23 are in the open state, the heat melting connection pipe is lowered into the well by the crane. After being lowered to a certain height, the lower pipe fixing part 23 is switched to the closed state to clamp the heat melting connection pipe. The crane hoists the third section of heat exchange well pipe 1 fixed on the upper pipe fixing part 22, the above operation is repeatedly repeated, until the heat melting connection pipe reaches the predetermined length and is lowered into the well, the butt joint and lowering of the heat exchange well pipe are completed. Therefore, the technical scheme is applied, the butt joint part 20 is vertically butt jointed, the heat exchange well pipe 1 is heat melted and lowered alternately, so that the connection quality of the heat exchange well pipe 1 is ensured on the one hand, and the lowering difficulty of the heat exchange well pipe 1 is reduced on the other hand.

[0030] As shown in Figures 1 to 3 , in the embodiment, the butt joint part 20 is movably arranged on the support 10 in the horizontal direction, the butt joint part 20 has a working position at which the upper pipe fixing part 22 and the lower pipe fixing part 23 are opposite to the well mouth and a avoiding position away from the well mouth. Specifically, after the upper pipe fixing part 22 and the lower pipe fixing part 23 are in the open state, the butt joint part 20 is pushed away from the working position, that is, the butt joint part 20 is moved to the avoiding position. Then the heat melting connection pipe is lowered into the well by the crane. During the process that the crane lowers the heat melting connection pipe, since the butt joint part 20 is away from the well mouth, the butt joint part 20 will not interfere with the heat melting connection pipe, so that the heat melting connection pipe can be lowered more smoothly.

[0031] As shown in Figures 1 to 3 , in the embodiment, the butt joint device of the heat exchange well pipe further comprises a sliding frame 30, the sliding frame 30 comprises a frame body 31 and a wheel 32 arranged below the frame body 31, and the butt joint part 20 is arranged on the sliding frame 30. The above structure makes the friction generated by the sliding of the butt joint part 20 on the support 10 be rolling friction, so that the wear degree of the butt joint part 20 and the support 10 is reduced.

[0032] As shown in Figure 1 and Figure 3 , in the embodiment, the support 10 is provided with a sliding groove 111 limiting the wheel 32. The above structure makes the butt joint part 20 be able to move in a predetermined direction, so that the butt joint part 20 is more easily to reach the working position.

[0033] As shown in Figure 1As shown, in this embodiment, the bracket 10 includes two parallel limiting rods 11, a horizontal connecting rod 12 connecting the two limiting rods 11, and a support rod 13 supporting the limiting rods 11. The limiting rods 11 are provided with a sliding groove 111. The horizontal connecting rod 12 and the two limiting rods 11 form an escape opening 2 with an opening on one side. When the docking member 20 is in the escape position, the upper tube fixing member 22 and the lower tube fixing member 23 are opposite to the escape opening 2. The above structure is simple, has strong support stability, and is low in cost.

[0034] like Figures 1 to 4 As shown, in this embodiment, the docking member 20 further includes a base frame 24 and a top frame 25 arranged vertically at intervals, and a connector 26 connecting the base frame 24 and the top frame 25. The guide shaft 21 is fixed between the base frame 24 and the top frame 25. The base frame 24 is fixed to a sliding frame 30. The sliding frame 30 further includes a tilting rod 33 supported between the frame body 31 and the top frame 25. The above structure enables the docking member 20 to be more securely fixed to the sliding frame 30, prevents the docking member 20 from tipping over, and ensures the reliability of the docking device for the heat exchange well pipe.

[0035] In this embodiment, the butt joint 20 is mounted on one end of the frame 31, and the sliding frame 30 further includes a counterweight (not shown) mounted on the other end of the frame 31. This structure ensures the balance of the sliding frame 30 and prevents it from tipping over. Furthermore, the butt joint 20 mounted on the end of the frame 31 reduces the impact (interference) of the frame 31 on the hot-melt connector when the crane lowers the hot-melt connector.

[0036] like Figure 1 and Figure 4 As shown, in this embodiment, the upper tube fixing member 22 includes two upper fixing rings 221 spaced apart from each other, and the lower tube fixing member 23 includes two lower fixing rings 231 spaced apart from each other. This structure is simple and easy to implement. It also more reliably limits the axial position of the heat exchange well 1, ensuring that the axes of the upper and lower heat exchange wells 1 are coaxial.

[0037] like Figure 1 and Figure 4 As shown, in this embodiment, the upper fixing ring 221 includes a first half ring 222 and a second half ring 223 that are hingedly connected, and a first locking member that locks the first half ring 222 and the second half ring 223. The lower fixing ring 231 includes a third half ring 232 and a fourth half ring 233 that are hingedly connected, and a second locking member that locks the third half ring 232 and the fourth half ring 233. The above structure is simple and facilitates the opening and closing of the upper tube fixing member 22 and the lower tube fixing member 23.

[0038] Preferably, in this embodiment, the base frame 24 and the lowermost third half ring 232 may be an integral structure.

[0039] In other embodiments not shown in the figures, the butt joint device of the heat exchange well pipe further comprises a driving device, a sensor and a control device. The driving device drives the butt joint piece 20 to move. The sensor is arranged on the butt joint piece 20 to detect whether the butt joint piece 20 moves to the working position. The sensor is electrically connected with the driving device and the control device. Specifically, when the butt joint piece 20 moves to the working position, the sensor detects that the butt joint piece 20 is moved to the position and sends a position signal to the control device. After receiving the position signal, the control device controls the driving device to stop working, so that the butt joint piece 20 is kept in the position. The above structure improves the automation degree of the butt joint device of the heat exchange well pipe and reduces the labor intensity of the workers.

[0040] The relative arrangement, numerical expressions, and numerical values of the components and steps set forth in the embodiments are not limiting to the scope of the present application unless otherwise specifically stated. Meanwhile, it should be understood that the sizes of the various parts shown in the drawings are not drawn in accordance with the actual proportional relationship for the convenience of description. The technology, methods, and devices known to those skilled in the related art can not be discussed in detail, but should be considered as part of the authorized description under appropriate circumstances. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, not as a limitation. Therefore, other examples of exemplary embodiments can have different values. It should be noted that similar reference numbers and letters represent similar items in the following drawings, so further discussion is not needed for them in subsequent drawings once they are defined in one drawing.

[0041] For the convenience of description, spatial relative terms such as "over", "above", "upper surface", "upper", etc. can be used here to describe the spatial positional relationship of one device or feature with other devices or features as shown in the drawings. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the device described in the drawings. For example, if the device in the drawing is inverted, the device described as "above" or "over" other devices or structures will be positioned "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below" orientations. The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used here are interpreted accordingly.

[0042] In the description of the utility model, need understanding is, the orientation word such as " before, after, top, bottom, left, right " " horizontal, vertical, perpendicular, horizontal " and " top, bottom " and so on indicated orientation or positional relationship usually is based on the orientation or positional relationship shown in drawing, just is for the convenience of describing the utility model and simplifying description, under the condition of not making opposite statement, these orientation words do not indicate and suggest the device or element indicated must have a particular orientation or with a particular orientation structure and operation, therefore can not be understood as the restriction of the protection scope of the utility model;The orientation word " inside, outside " refers to the inside and outside relative to the outline of each component.

[0043] The above only for the preferred embodiment of the utility model has, and does not for limiting the utility model, for the person skilled in the art, the utility model can have various changes and changes. Any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A heat exchange well pipe docking device, characterized in that: include: Bracket (10); A docking member (20) is arranged on the bracket (10), and the docking member (20) includes a vertically arranged guide shaft (21) and an upper tube fixing member (22) and a lower tube fixing member (23) that are coaxially arranged and pass through the guide shaft (21). The upper tube fixing member (22) is adjustably arranged on the guide shaft (21) through an adjusting member. The upper tube fixing member (22) and the lower tube fixing member (23) both have an open state for releasing the heat exchange well pipe (1) and a closed state for clamping the heat exchange well pipe (1).

2. The heat exchange well pipe docking device according to claim 1, characterized in that: The docking member (20) is movably arranged on the bracket (10) in the horizontal direction, and the docking member (20) has a working position in which the upper pipe fixing member (22) and the lower pipe fixing member (23) are relative to the wellhead, and a avoiding position away from the wellhead.

3. The heat exchange well pipe docking device according to claim 2, characterized in that: The heat exchange well pipe docking device also includes: The sliding frame (30) comprises a frame body (31) and wheels (32) arranged below the frame body (31); the docking member (20) is arranged on the sliding frame (30).

4. The heat exchange well pipe docking device according to claim 3, characterized in that: The bracket (10) is provided with a sliding groove (111) for limiting the position of the wheel (32).

5. The heat exchange well pipe docking device according to claim 4, characterized in that: The bracket (10) includes two limit rods (11) arranged in parallel, a horizontal connecting rod (12) connecting the two limit rods (11), and a support rod (13) supporting the limit rods (11); the limit rods (11) are provided with the sliding groove (111); a avoidance opening (2) with an opening on one side is formed between the horizontal connecting rod (12) and the two limit rods (11); when the docking member (20) is in the avoidance position, the upper tube fixing member (22) and the lower tube fixing member (23) are opposite to the avoidance opening (2).

6. The heat exchange well pipe docking device according to claim 3, characterized in that: The docking member (20) further comprises a bottom frame (24), a top frame (25) and a connecting member (26) connected between the bottom frame (24) and the top frame (25) arranged vertically at intervals. The guide shaft (21) is fixed between the bottom frame (24) and the top frame (25). The bottom frame (24) is fixed on the sliding frame (30). The sliding frame (30) further comprises a tilting rod (33) supported between the frame body (31) and the top frame (25).

7. The heat exchange well pipe docking device according to claim 3, characterized in that: The docking member (20) is arranged at one end of the frame body (31), and the sliding frame (30) further comprises a counterweight arranged at the other end of the frame body (31).

8. The heat exchange well pipe docking device according to claim 1, characterized in that: The upper tube fixing member (22) comprises two upper fixing rings (221) spaced apart from each other, and the lower tube fixing member (23) comprises two lower fixing rings (231) spaced apart from each other.

9. The heat exchange well pipe docking device according to claim 8, characterized in that: The upper fixing ring (221) includes a first half ring (222) and a second half ring (223) that are hingedly connected, and a first locking member for locking the first half ring (222) and the second half ring (223); the lower fixing ring (231) includes a third half ring (232) and a fourth half ring (233) that are hingedly connected, and a second locking member for locking the third half ring (232) and the fourth half ring (233).

10. The heat exchange well pipe docking device according to claim 2, characterized in that: The heat exchange well pipe docking device also includes: A driving device for driving the docking member (20) to move; a sensor, disposed on the docking member (20), for detecting whether the docking member (20) has moved to the working position; The control device is electrically connected to the sensor, the drive device and the control device.

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