Underground descaling device for geothermal well

Abstract

The utility model relates to the technical field of geothermal well descaling, in particular to a geothermal well underground descaling device which mainly comprises a control pump, a connecting rod is arranged in the control pump, a triangular limiting plate is arranged on the outer wall of the connecting rod, a triangular groove is formed in the top face of the triangular limiting plate, a supporting rod is fixed in the triangular groove, and the supporting rod is arranged in the triangular groove. Connecting rods are arranged on the two sides of the supporting rod correspondingly. One end of the supporting rod is provided with the power supply motor, and the interior of the motor is rotationally connected with an electric rotating rod; a rotating inner disc is fixed to the bottom end of the electric rotating rod, a center gear and a planetary gear are arranged in the rotating inner disc, and an eccentric rod is arranged on one side of the planetary gear. According to the underground descaling device for the geothermal well, the planetary gear can push the eccentric rod to move towards the outer side during rotation, and the telescopic rod structure and the telescopic channel are distributed in an annular array, so that the three descaling plates are pushed to extend in three directions, and the descaling work of different well diameters is met.

Description

Technical Field

[0001] The utility model relates to the technical field of geothermal well descaling, in particular to an underground geothermal well descaling device. Background Art

[0002] Geothermal wells are devices that utilize underground thermal energy. By drilling deep underground wells, geothermal energy is used to provide heating, power generation and other energy systems. The geothermal temperature varies with the depth of the geothermal well. Geothermal energy is divided into three categories: low temperature, medium temperature and high temperature. During the long-term use of geothermal wells, the sediment and minerals in the water react and accumulate, and the microorganisms in the wells will multiply in large numbers in a suitable environment. These various environmental factors will cause scaling on the well walls, which will seriously affect the water output and heat production efficiency of the geothermal wells, and may even damage the geothermal wells and equipment. Therefore, it is necessary to descale the geothermal wells.

[0003] The Chinese utility model patent with application number: CN202221874009.1 discloses a descaling device for a geothermal well, comprising a placement plate and a geothermal well body, the top of the placement plate is fixedly connected to a shell, a transmission motor is fixedly installed inside the shell, a rotating sleeve is fixedly sleeved on the output shaft of the transmission motor, a limit rod is fixedly connected to the inside of the shell, a transmission block is movably sleeved on the outside of the limit rod, the bottom end of the transmission block is fixedly connected to a moving rod, a rotating motor is fixedly installed inside the bottom end of the moving rod, a rotating block is fixedly sleeved on the output shaft of the rotating motor, and a fixed block is fixedly connected to the bottom of the rotating block.

[0004] The above patent can only remove scale by extending the wellhead device into the well, which is bulky and has unstable descaling effect. Therefore, there is a need for a geothermal well downhole descaling device that can relatively easily remove the downhole scale, is simple to operate and has better descaling effect. Utility Model Content

[0005] The purpose of the utility model is to provide a geothermal well underground descaling device to solve the problems raised by the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A geothermal well downhole descaling device, comprising: a control pump, a connecting rod is arranged inside the control pump, a triangular limit plate is arranged on the outer wall of the connecting rod, a triangular groove is opened on the top surface of the triangular limit plate, a support rod is fixed inside the triangular groove, and connecting rods are arranged on both sides of the support rod;

[0008] A support plate is provided at one end of the support rod, the connecting rod is connected to the outer wall of the control pump, an anti-sliding block is fixed to one side of the support plate, a power supply motor is fixed to the bottom surface of the triangular limit plate, and an electric rotating rod is rotatably connected to the inside of the power supply motor;

[0009] A rotating inner disk is fixed at the bottom end of the electric rotating rod, a central gear and a planetary gear are arranged inside the rotating inner disk, an eccentric rod is arranged on one side of the planetary gear, and a telescopic rod is arranged on one side of the eccentric rod;

[0010] A connecting plate is provided on the bottom surface of the telescopic rod, and the eccentric rod is connected to the telescopic rod through the connecting plate. A plurality of balls are provided inside the rotating inner disk, and a rotating outer disk is provided below the balls.

[0011] The rotating outer disc is connected to the ball bearing, a telescopic channel is provided above the rotating outer disc, and one end of the telescopic rod is rotatably connected to a descaling plate;

[0012] A brush is fixed on one side of the descaling plate, and a scraper is fixed on one side of the descaling plate, wherein the scraper is located between the brushes.

[0013] Preferably, the support rod, connecting rod, support plate, and anti-sliding plate are distributed in a circular array as a whole, and the planetary gears, eccentric rods, connecting plates, telescopic rods, telescopic channels, descaling plates, brushes, and scrapers are distributed in a circular array as a whole.

[0014] Preferably, the triangular groove and the support rod, the support rod and the connecting rod, the connecting rod and the control pump, the support rod and the support plate, the connecting plate and the eccentric rod, and the connecting plate and the telescopic rod are all pin-connected; the telescopic rod and the descaling plate are threadedly connected by bolts and nuts.

[0015] Preferably, the planetary gear is meshed with the center gear, a first flat key is provided inside the center gear, a second flat key is provided inside the planetary gear, a plurality of rotating columns are provided inside the rotating inner disk, the rotating columns themselves are rotatable, the top and bottom surfaces of the center gear are in contact with the inner wall surface of the rotating inner disk, and are circumferentially fixedly connected to the electric rotating rod through the first flat key, and the planetary gear is circumferentially fixedly connected to the rotating column through the second flat key.

[0016] Preferably, a groove is provided on the outer edge of the rotating inner disk, a groove is provided on the inner edge of the rotating outer disk, and the balls are arranged in the grooves to make the rotating inner disk and the rotating outer disk rotate relative to each other.

[0017] Preferably, the eccentric rod is eccentrically arranged on both sides of the planetary gear and can rotate relatively, and the connecting plate is arranged in the telescopic channel.

[0018] Compared with the prior art, the beneficial effects of the utility model are: effectively solving the problems of low efficiency of manual descaling, inability to ensure the descaling effect, and great danger, not only greatly reducing labor costs, but also improving the efficiency and quality of descaling; and having a simple structure and easy operation, the utility model can achieve effective results for geothermal wells of different depths and well diameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0020] Figure 2 It is a schematic diagram of the descaling transmission structure in the structure of the utility model;

[0021] Figure 3 It is a structural schematic diagram of the telescopic rod in the structure of the utility model;

[0022] Figure 4 It is a structural schematic diagram of the rotating inner disk in the structure of the utility model.

[0023] In the figure: 1. control pump; 2. connecting rod; 3. triangular limit plate; 4. power motor; 5. electric rotating rod; 6. rotating inner disk; 7. connecting rod; 8. support rod; 9. support plate; 10. anti-sliding block; 11. rotating outer disk; 12. telescopic rod; 13. brush; 14. scraper; 15. triangular groove; 16. descaling plate; 61. central gear; 62. planetary gear; 63. first flat key; 64. second flat key; 65. rotating column; 111. ball; 112. telescopic channel; 121. eccentric rod; 122. connecting plate. DETAILED DESCRIPTION

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

[0025] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0026] Embodiment 1:

[0027] See also Figure 1-Figure 4The utility model provides a technical solution: a geothermal well underground descaling device, comprising: a control pump 1, a connecting rod 2 is arranged inside the control pump 1, a triangular limiting plate 3 is arranged on the outer wall of the connecting rod 2, a triangular groove 15 is opened on the top surface of the triangular limiting plate 3, a support rod 8 is fixed inside the triangular groove 15, and connecting rods 7 are arranged on both sides of the support rod 8; a support plate 9 is arranged at one end of the support rod 8, the connecting rod 7 is connected to the outer wall of the control pump 1, an anti-sliding block 10 is fixed on one side of the support plate 9, a power supply motor 4 is fixed on the bottom surface of the triangular limiting plate 3, and an electric rotating rod 5 is connected to the power supply motor 4 for internal rotation; a rotating inner disk 6 is fixed at the bottom end of the electric rotating rod 5, and a central rotating inner disk 6 is arranged inside the rotating inner disk 6 The heart gear 61 and the planetary gear 62, an eccentric rod 121 is provided on one side of the planetary gear 62, and a telescopic rod 12 is provided on one side of the eccentric rod 121; a connecting plate 122 is provided on the bottom surface of the telescopic rod 12, and the eccentric rod 121 is connected to the telescopic rod 12 through the connecting plate 122, a plurality of balls 111 are provided inside the rotating inner disk 6, and a rotating outer disk 11 is provided below the balls 111; the rotating outer disk 11 is connected to the balls 111, and a telescopic channel 112 is provided above the rotating outer disk 11, and a descaling plate 16 is rotatably connected to one end of the telescopic rod 12; a brush 13 is fixed on one side of the descaling plate 16, and a scraper 14 is fixed on one side of the descaling plate 16, and the scraper 14 is located between the brushes 13.

[0028] Embodiment 2:

[0029] like Figure 1-Figure 4As shown, a geothermal well underground descaling device disclosed in Example 2 of the utility model has a structure that is basically the same as that in Example 1, except that the support rod 8, the connecting rod 7, the support plate 9, and the anti-sliding block 10 are distributed in a circular array as a whole, the planetary gear 62, the eccentric rod 121, the connecting plate 122, the telescopic rod 12, the telescopic channel 112, the descaling plate 16, the brush 13, and the scraper 14 are distributed in a circular array as a whole, the triangular groove 15 and the support rod 8, the support rod 8 and the connecting rod 7, the connecting rod 7 and the control pump 1, the support rod 8 and the support plate 9, the connecting plate 122 and the eccentric rod 121, and the connecting plate 122 and the telescopic rod 12 are all pin-connected; the telescopic rod 12 and the descaling plate 16 are threadedly connected by bolts and nuts, and the planetary gear 62 and the central gear 61 are connected. Meshing, a first flat key 63 is provided inside the central gear 61, a second flat key 64 is provided inside the planetary gear 62, a plurality of rotating columns 65 are provided inside the rotating inner disk 6, the rotating columns 65 themselves are rotatable, the top and bottom surfaces of the central gear 61 are in contact with the inner wall surface of the rotating inner disk 6, and are circumferentially fixedly connected to the electric rotating rod 5 through the first flat key 63, the planetary gear 62 is circumferentially fixedly connected to the rotating columns 65 through the second flat key 64, a groove is provided on the outer edge of the rotating inner disk 6, a groove is provided on the inner edge of the rotating outer disk 11, the ball 111 is arranged in the groove and makes the rotating inner disk 6 and the rotating outer disk 11 rotate relative to each other, the eccentric rod 121 is eccentrically arranged on both sides of the planetary gear 62 and can rotate relative to each other, and the connecting plate 122 is arranged in the telescopic channel 112.

[0030] The specific scheme is as follows: the staff turns on the control pump 1, and then the control pump 1 lifts the connecting rod 2 upwards through hydraulic power, and the connecting rod 2 rises together with the triangular limit plate 3, and the triangular groove 15 is fixed above the triangular limit plate 3, and the opening of the triangular groove 15 is connected to the support rod 8 through a pin shaft, and the two can rotate relative to each other. Since the support rod 8 is connected to the connecting rod 7, and the connecting rod 7 is connected to the control pump, when the triangular limit plate 3 moves upward, the end of the support rod 8 connected to the support plate 9 will move away from the triangular limit plate 3, and the support rod 8 is in a circular shape. The three support plates 9 are distributed in an array, so that the three support plates 9 extend in three directions, and the support plates 9 apply pressure and then act on the geothermal well wall through the anti-slip block 10, so as to fix the entire device in the geothermal well, and also avoid the shaking of the device during descaling work. Grooves are set on the outer edge of the rotating inner disk 6 and the inner edge of the rotating outer disk 11, and built-in balls are similar to the inner and outer rings of the bearing, which can rotate relative to each other, and the telescopic rod structure moves together with the telescopic channel, so the rotating inner disk and the rotating outer disk rotate in one direction and can rotate relative to each other at the same time, thereby ensuring the extension of the telescopic structure.

[0031] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0032] The utility model is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.

Claims

1. A geothermal well downhole descaling device, comprising: A control pump (1), characterized in that a connecting rod (2) is arranged inside the control pump (1), a triangular limit plate (3) is arranged on the outer wall of the connecting rod (2), a triangular groove (15) is opened on the top surface of the triangular limit plate (3), a support rod (8) is fixed inside the triangular groove (15), and connecting rods (7) are respectively arranged on both sides of the support rod (8); A support plate (9) is provided at one end of the support rod (8), the connecting rod (7) is connected to the outer wall of the control pump (1), an anti-sliding block (10) is fixed to one side of the support plate (9), a power supply motor (4) is fixed to the bottom surface of the triangular limiting plate (3), and an electric rotating rod (5) is rotatably connected inside the power supply motor (4); A rotating inner disk (6) is fixed at the bottom end of the electric rotating rod (5), a central gear (61) and a planetary gear (62) are arranged inside the rotating inner disk (6), an eccentric rod (121) is arranged on one side of the planetary gear (62), and a telescopic rod (12) is arranged on one side of the eccentric rod (121); A connecting plate (122) is provided on the bottom surface of the telescopic rod (12), the eccentric rod (121) is connected to the telescopic rod (12) via the connecting plate (122), a plurality of balls (111) are provided inside the rotating inner disk (6), and a rotating outer disk (11) is provided below the balls (111); The rotating outer disk (11) is connected to the ball (111), a telescopic channel (112) is provided above the rotating outer disk (11), and one end of the telescopic rod (12) is rotatably connected to a descaling plate (16); A brush (13) is fixed on one side of the descaling plate (16), and a scraper (14) is fixed on one side of the descaling plate (16), wherein the scraper (14) is located between the brushes (13).

2. A geothermal well downhole descaling device according to claim 1, characterized in that: The support rod (8), the connecting rod (7), the support plate (9), and the anti-sliding plate (10) are distributed in a circular array as a whole, and the planetary gear (62), the eccentric rod (121), the connecting plate (122), the telescopic rod (12), the telescopic channel (112), the descaling plate (16), the brush (13), and the scraper (14) are distributed in a circular array as a whole.

3. A geothermal well downhole descaling device according to claim 1, characterized in that: The triangular groove (15) and the support rod (8), the support rod (8) and the connecting rod (7), the connecting rod (7) and the control pump (1), the support rod (8) and the support plate (9), the connecting plate (122) and the eccentric rod (121), and the connecting plate (122) and the telescopic rod (12) are all connected by pins; the telescopic rod (12) and the descaling plate (16) are threadedly connected by bolts and nuts.

4. A geothermal well downhole descaling device according to claim 1, characterized in that: The planetary gear (62) is meshed with the central gear (61); a first flat key (63) is arranged inside the central gear (61); a second flat key (64) is arranged inside the planetary gear (62); and a plurality of rotating columns (65) are arranged inside the rotating inner disk (6); The rotating column (65) itself is rotatable, the top surface and the bottom surface of the central gear (61) are in contact with the inner wall surface of the rotating inner disk (6), and are circumferentially fixedly connected to the electric rotating rod (5) via a first flat key (63), and the planetary gear (62) is circumferentially fixedly connected to the rotating column (65) via a second flat key (64).

5. A geothermal well downhole descaling device according to claim 1, characterized in that: The outer edge of the rotating inner disk (6) is provided with a groove, the inner edge of the rotating outer disk (11) is provided with a groove, and the balls (111) are arranged in the groove to make the rotating inner disk (6) and the rotating outer disk (11) rotate relative to each other.

6. A geothermal well downhole descaling device according to claim 1, characterized in that: The eccentric rod (121) is eccentrically arranged on both sides of the planetary gear (62) and can rotate relatively, and the connecting plate (122) is arranged in the telescopic channel (112).

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