A geothermal water desanding device for geothermal utilization

Abstract

The invention discloses a geothermal water desandering device for geothermal utilization, and relates to the technical field of geothermal water treatment. The device comprises a cyclone desander main body, a water inlet pipe, a water outlet pipe and a waste port. The water inlet pipe is arranged at the upper end of the side wall of the cyclone desander main body in a tangential direction, and the water outlet pipe is arranged at the top of the cyclone desander main body, and the waste port is arranged at the bottom end of the cyclone desander main body. The invention cooperates with the reserved groove 2 and the reserved groove 1 or the reserved groove 3 to select different water flow paths according to the occasion of using the geothermal water, which is beneficial for the guide groove to guide the sand and gravel into the inside of the conical hole, and is also beneficial for the water flow to enter the inside of the conical block. The shape of the conical hole prevents the sand and gravel from flowing back to the top of the conical block. The stirring blade gathers the sand and gravel in the middle of the cyclone desander main body, which is convenient for precipitating the sand and gravel or lighter foreign matter. The cleaning brush rotates the cleaning brush under the meshing of the gear, and the cleaning brush can clean the inner wall of the cyclone desander main body.

Description

Technical Field

[0001] The invention relates to the technical field of geothermal water treatment, in particular to geothermal water desanding equipment for geothermal utilization. Background Art

[0002] Geothermal water treatment and exploitation includes geological survey and exploration, mining well construction, geothermal water extraction, geothermal water utilization, and geothermal water treatment and discharge. According to the temperature and purpose of geothermal water, it can be used for power generation, heating, industrial utilization, agricultural utilization and domestic utilization. Among them, the requirements for the size of sand and gravel particles in geothermal water for industrial water use are relatively low, and the requirements for the size of sand and gravel particles in geothermal water for domestic water use are relatively high. The sand and gravel treatment in geothermal water refers to the process of treating the suspended sand and gravel particles carried during the exploitation and utilization of geothermal water. These sand and gravel particles may affect the normal operation and utilization effect of the geothermal system. Sand and gravel separation often uses cyclone separator equipment for sand and gravel separation. The cyclone desander uses the principle of centrifugal separation to remove sand. Since the water inlet pipe is installed in the eccentric position of the cylinder, when the water passes through the cyclone desander water inlet pipe, it first forms a surrounding fluid obliquely downward along the tangent direction of the cylinder. The water flow rotates and moves downward. When the water flow reaches a certain part of the cone, it turns to rotate upward along the axis of the cylinder and finally discharged through the outlet pipe.

[0003] In the prior art, when geothermal water containing sand and gravel is introduced into the interior of the cyclone desander, due to the cyclone effect generated by the water flow, the heavier sand and gravel fall along the inner wall of the cyclone desander to the bottom end of the cyclone desander, but some lighter sand and gravel or foreign matter easily enter the outlet pipe from the top diameter of the cyclone desander, causing larger sand and gravel or larger foreign matter to be discharged from the outlet pipe, thereby affecting the use of geothermal water. Some lighter sand and gravel or foreign matter will gather at the axial position of the cyclone desander and easily enter under the screen plate with the water flow. It is necessary to block the sand and gravel that floats upward or moves upward, otherwise the sand and gravel will easily be discharged from the outlet pipe or block the screen plate. Summary of the invention

[0004] The object of the present invention is to provide a geothermal water desanding device for geothermal utilization to solve the problems raised in the above-mentioned background technology.

[0005] The purpose of the present invention can be achieved by the following technical solutions:

[0006] A geothermal water desander device for geothermal utilization, comprising a cyclone desander main body, a water inlet pipe, a water outlet pipe and a waste port, wherein the water inlet pipe is arranged at the upper end of the side wall of the cyclone desander main body in a tangential direction, and the water outlet pipe is arranged at the top of the cyclone desander main body, and the waste port is arranged at the bottom end of the cyclone desander main body; a filtering and screening structure is arranged at the top of the cyclone desander main body, and the filtering and screening structure comprises a motor, which is arranged at the top of the outer wall of the cyclone desander main body; a fixed plate, a second sieve plate and a first sieve plate are arranged at the inner top of the cyclone desander main body, the fixed plate, the second sieve plate and the first sieve plate are arranged from top to bottom, the filter hole diameter of the first sieve plate is larger than the filter hole diameter of the second sieve plate, and the filter hole diameter of the second sieve plate is larger than the filter hole diameter of the second sieve plate. Plate one and sieve plate two are used to screen sand and gravel of different particle sizes. A fixed sleeve is welded in the middle of the fixed plate, sieve plate two and sieve plate one. Gear one and gear two that mesh with each other are arranged on the top of the fixed sleeve. Gear one is arranged at the output end of the motor. Gear two rotates synchronously with the fixed sleeve. The water outlet pipe runs through the interior of gear two. The bottom end of the water outlet pipe is a blind hole. The side wall of the water outlet pipe is rotatably connected to the inner wall of the fixed sleeve. A reserved groove one is provided on the side wall of the fixed sleeve and located between sieve plate one and sieve plate two. A reserved groove three is provided on the side wall of the fixed sleeve and located between sieve plate two and the fixed plate. A reserved groove two is provided on the side wall of the water outlet pipe. The rotating reserved groove two is used to control the path of liquid flowing from the water outlet pipe.

[0007] As a preferred technical solution of the present invention, a limiting block is welded to the inner wall of the cyclone desander body, and a fixed plate is located above the limiting block, the fixed plate is movably connected to the limiting block, and the side walls of the fixed plate, sieve plate 2 and sieve plate 1 are all movably connected to the inner wall of the cyclone desander body.

[0008] As a preferred technical solution of the present invention, the width of the reserved groove one and the width of the reserved groove three are both adapted to the width of the reserved groove two, and the spacing between the fixed plate and the screen plate one is adapted to the height of the reserved groove two, the angles between the reserved groove one, the reserved groove three and the reserved groove two of the water outlet pipe are arranged at 120°, and the water outlet pipe rotates relative to the fixed sleeve.

[0009] As a preferred technical solution of the present invention, a sealing groove is provided on the side wall of the water outlet pipe and around the reserved groove two, and a sealing strip is provided inside the sealing groove, and the size of the sealing strip is larger than the size of the reserved groove one or the reserved groove three.

[0010] As a preferred technical solution of the present invention, a check structure is provided inside the cyclone desander body and at the bottom end of the water outlet pipe, the check structure includes a conical block, the conical block is welded to the bottom end of the water outlet pipe, a conical groove is provided at the bottom end of the conical block, and conical holes arranged in a ring are provided on the upper surface of the conical block, the top diameter of the conical hole is larger than the bottom diameter of the conical hole, the conical hole is used to prevent sand and gravel from flowing back upward from the bottom end of the cyclone desander body, a guide groove is provided on the edge of each conical hole, the guide groove is spiral, the rotation direction of the guide groove is the same as the water flow rotation direction of the water inlet pipe, and the guide groove is used to guide sand and gravel into the inside of the conical hole.

[0011] As a preferred technical solution of the present invention, a fixed frame is welded to the lower end of the inner part of the cyclone desander body, a rotating shaft is arranged between the fixed frame and the conical block, two ends of the rotating shaft are respectively rotatably connected to the conical block and the fixed frame, and a stirring blade is welded to the side wall of the rotating shaft, and the stirring blade is used to stir and precipitate sand and gravel foreign matter.

[0012] As a preferred technical solution of the present invention, the diameter of the conical block and the diameter of the stirring blade are both smaller than the inner diameter of the cyclone desander body, and the gap between the conical block and the inner wall of the cyclone desander body is used to pass the sand and gravel that rotates and falls along the inner wall of the cyclone desander body.

[0013] As a preferred technical solution of the present invention, a cleaning structure is provided on the inner wall of the cyclone desander body and located below the sieve plate one, and the cleaning structure includes an internal gear welded to the inner wall of the cyclone desander body, the internal gear is located below the sieve plate one, and at least three groups of fixed shafts are provided on the edge of the sieve plate one, and the top of each fixed shaft is rotatably connected to the sieve plate one, a cleaning brush is provided on the outside of the fixed shaft, and the cleaning brush is in contact with the inner wall of the cyclone desander body, a gear three is provided at the upper end of the fixed shaft and located at the internal gear, and the gear three is meshed with the internal gear, and the gear three rotates synchronously with the fixed shaft, and a retaining frame is provided between the bottom ends of each fixed shaft.

[0014] As a preferred technical solution of the present invention, the cleaning brush revolves around the axis of the cyclone desander body while rotating around its axis, the retaining frame rotates around the axis of the cyclone desander body, and there is a gap between the side wall of the retaining frame and the inner wall of the cyclone desander body for sand and gravel to pass through.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] A filtering and screening structure is provided, and the meshing of gear 1 and gear 2 can rotate sieve plate 1 and sieve plate 2, and reserved slot 2 cooperates with reserved slot 1 or reserved slot 3, so that larger sand and gravel can be screened by sieve plate 1, and smaller sand and gravel can be screened by sieve plate 2, thereby selecting different water flow paths according to the occasions of geothermal water use;

[0017] A check structure is provided, and the conical hole of the conical block can collect sand and gravel, which is conducive to the diversion groove to guide the sand and gravel into the conical hole, and the rotating water flow flows along the diversion groove, which is also conducive to the water flow entering the interior of the conical block. The shape of the conical hole prevents the sand and gravel from flowing back to the top of the conical block;

[0018] A stirring blade is provided, which can be rotated by water flow, so that the stirring blade can stir smaller sand and gravel, and the stirring blade gathers the sand and gravel in the middle of the main body of the cyclone desander, which is convenient for the sedimentation of sand and gravel or lighter foreign matter;

[0019] When the reserved groove 2 does not overlap with the reserved groove 1 and the reserved groove 3, the water flow inside the cyclone desander body stops flowing, and the sand and gravel inside the cyclone desander body can be left to stand still;

[0020] A cleaning structure is provided. When the motor rotates forward or reversely, the sieve plate drives the fixed shaft to rotate synchronously, so that the cleaning brush rotates under the meshing of the gears, and the cleaning brush can clean the inner wall of the cyclone desander body. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0022] Figure 1 This is a main structural diagram of a geothermal water desanding device for geothermal utilization of the present invention;

[0023] Figure 2 It is a schematic diagram of the interior of a cyclone desander body of a geothermal water desander device for geothermal utilization of the present invention;

[0024] Figure 3 This is a schematic diagram of the filtering and screening structure of a geothermal water desanding device for geothermal utilization of the present invention;

[0025] Figure 4 It is a schematic diagram of sieve plate 1 and sieve plate 2 of a geothermal water desanding device for geothermal utilization of the present invention;

[0026] Figure 5 It is a schematic diagram of a reserved tank 1, a reserved tank 2 and a reserved tank 3 of a geothermal water desanding device for geothermal utilization of the present invention;

[0027] Figure 6 It is a schematic diagram of a non-return structure of a geothermal water desanding device for geothermal utilization of the present invention;

[0028] Figure 7 A schematic diagram of a conical hole of a geothermal water desanding device for geothermal utilization according to the present invention;

[0029] Figure 8A schematic diagram of a stirring blade of a geothermal water desanding device for geothermal utilization according to the present invention;

[0030] Fig. 9 A schematic diagram of the cleaning structure of a geothermal water desanding device for geothermal utilization according to the present invention;

[0031] Fig.10 This is a schematic diagram of a retaining frame of a geothermal water desanding device for geothermal utilization according to the present invention.

[0032] In the figure: 1. cyclone desander body; 2. water inlet pipe; 3. water outlet pipe; 4. filtering and screening structure; 5. waste port; 6. check structure; 7. cleaning structure; 41. motor; 42. gear one; 43. gear two; 44. fixed sleeve; 45. fixed plate; 46. sieve plate one; 47. sieve plate two; 48. reserved slot one; 49. reserved slot two; 410. reserved slot three; 411. sealing strip; 61. conical block; 62. conical hole; 63. guide slot; 64. conical slot; 65. rotating shaft; 66. stirring blade; 67. fixed frame; 71. internal gear; 72. fixed shaft; 73. gear three; 74. cleaning brush; 75. retaining frame. DETAILED DESCRIPTION

[0033] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] Example 1: Please refer to Figure 1-Figure 3As shown, a geothermal water desandering device for geothermal utilization comprises a cyclone desander main body 1, a water inlet pipe 2, a water outlet pipe 3 and a waste port 5. The water inlet pipe 2 is arranged at the upper end of the side wall of the cyclone desander main body 1 in a tangential direction, and the water outlet pipe 3 is arranged at the top of the cyclone desander main body 1. The length of the water outlet pipe 3 is set according to needs. The waste port 5 is arranged at the bottom end of the cyclone desander main body 1. The geothermal water is transported to the water inlet pipe 2 by a water pump or the like. The geothermal water enters the inner wall of the cyclone desander main body 1 from the water inlet pipe 2 along the tangential direction of the cyclone desander main body 1, so that the water flow generates a cyclone. Since the density of some sand and gravel is greater than the density of water, the sand and gravel in the geothermal water enters along the inner wall of the cyclone desander main body 1. The sand and gravel settle to the waste port 5, and the geothermal water is discharged from the outlet pipe 3 at the top of the cyclone desander main body 1; a filtering and screening structure 4 is provided at the top of the cyclone desander main body 1, and the filtering and screening structure 4 includes a motor 41, and the motor 41 is provided at the top of the outer wall of the cyclone desander main body 1. A fixed plate 45, a sieve plate 2 47 and a sieve plate 1 46 are provided at the top of the inner part of the cyclone desander main body 1. The fixed plate 45, the sieve plate 2 47 and the sieve plate 1 46 are arranged from top to bottom, and the filter hole diameter of the sieve plate 1 46 is larger than the filter hole diameter of the sieve plate 2 47. The sieve plate 1 46 and the sieve plate 2 47 are used to screen sand and gravel of different particle sizes. When the geothermal water flows upward from the inner bottom end of the cyclone desander main body 1, it will enter the sieve plate 1 46 and the sieve plate 46. At the second 47, larger sand and gravel can be further screened through the sieve plate 1 46, and smaller sand and gravel can be screened through the sieve plate 2 47, so that the geothermal water discharged from the water outlet pipe 3 can contain less sand and gravel, and geothermal water with different sand contents can be selected according to different usage scenarios. A fixed sleeve 44 is welded between the fixed plate 45, the sieve plate 2 47 and the sieve plate 1 46, and the top of the fixed sleeve 44 is provided with a gear 1 42 and a gear 2 43 that mesh with each other. The gear 1 42 is arranged at the output end of the motor 41, and the gear 2 43 rotates synchronously with the fixed sleeve 44. The rotation of the motor 41 can drive the gear 1 42 and the gear 2 43 to mesh, so that the gear 2 43 drives the sieve plate 1 46 and the sieve plate 2 47 to rotate, and the water outlet pipe 3 runs through the interior of the gear 2 43, the bottom end of the water outlet pipe 3 is a blind hole, the side wall of the water outlet pipe 3 is rotatably connected to the inner wall of the fixed sleeve 44, the side wall of the fixed sleeve 44 is provided with a reserved groove 1 48 between the sieve plate 1 46 and the sieve plate 2 47, the side wall of the fixed sleeve 44 is provided with a reserved groove 3 410 between the sieve plate 2 47 and the fixed plate 45, the side wall of the water outlet pipe 3 is provided with a reserved groove 2 49, the rotating reserved groove 2 49 is used to control the path of the liquid flowing from the water outlet pipe 3, when the reserved groove 2 49 of the water outlet pipe 3 is aligned with the reserved groove 1 48 or the reserved groove 3 410, the geothermal water inside the cyclone desander main body 1 can be connected to the water outlet pipe 3, so that the geothermal water can be discharged from the cyclone desander main body 1.

[0035] See also Figure 3As shown, a limiting block is welded to the inner wall of the cyclone desander body 1, and the fixed plate 45 is located above the limiting block. The limiting block can prevent the fixed plate 45, the second sieve plate 47 and the first sieve plate 46 from falling off the inner wall of the cyclone desander body 1. The fixed plate 45 is movably connected to the limiting block, and the side walls of the fixed plate 45, the second sieve plate 47 and the first sieve plate 46 are movably connected to the inner wall of the cyclone desander body 1. The fixed plate 45 will not change in height when the inner wall of the cyclone desander body 1 rotates.

[0036] See also Figure 3-Figure 5 As shown, the width of the reserved groove 1 48 and the width of the reserved groove 3 410 are both compatible with the width of the reserved groove 2 49, and the spacing between the fixed plate 45 and the sieve plate 1 46 is compatible with the height of the reserved groove 2 49, the angle between the reserved groove 1 48, the reserved groove 3 410 and the reserved groove 2 49 of the water outlet pipe 3 is 120°, and the water outlet pipe 3 rotates relative to the fixed sleeve 44, the motor 41 rotates forward or reversely by a certain angle, and the motor 41 drives the gear 1 42 and the gear 2 43 to engage, so that one of the reserved groove 1 48 and the reserved groove 3 410 of the fixed sleeve 44 can be aligned with the reserved groove 2 49, so that geothermal water flows out from the reserved groove 1 48 at the sieve plate 1 46, or geothermal water flows out from the reserved groove 3 410 at the sieve plate 2 47.

[0037] See also Figure 5 As shown, a sealing groove is provided on the side wall of the water outlet pipe 3 and is located around the reserved groove 2 49, and a sealing strip 411 is provided inside the sealing groove. The size of the sealing strip 411 is larger than the size of the reserved groove 1 48 or the reserved groove 3 410. When the reserved groove 2 49 is rotated to the reserved groove 1 48 and the reserved groove 3 410, the sealing strip 411 at the reserved groove 2 49 can be used to seal the reserved groove 1 48 and the reserved groove 3 410, thereby reducing the flow of sand and gravel from the gap between the reserved groove 2 49 and the screen plate 2 47.

[0038] It should be noted that after the geothermal water is mined, it is transported to the water inlet pipe 2. Since the water inlet pipe 2 is arranged on the side wall of the cyclone desander main body 1 along the tangential direction, the geothermal water enters the interior of the cyclone desander main body 1 and flows into the interior of the cyclone desander main body 1 in a spiral shape. During this period, the sand and gravel with relatively high density falls along the inner wall to the bottom end of the cyclone desander main body 1. The geothermal water located in the middle of the cyclone desander main body 1 will overflow to the bottom of the fixed plate 45. At this time, the sand and gravel can be screened again through the sieve plate 1 46 and the sieve plate 2 47. Specifically, the larger sand and gravel in the geothermal water can be retained by the sieve plate 1 46, and the smaller sand and gravel in the geothermal water can be retained by the sieve plate 2 47. , drive motor 41 to rotate in one direction so that gear one 42 drives gear two 43, gear two 43 drives fixed sleeve 44 to rotate, so that reserved groove two 49 coincides with reserved groove one 48, or rotate motor 41 in another direction so that gear one 42 drives gear two 43 to rotate in the opposite direction, gear two 43 drives fixed sleeve 44 to rotate in the opposite direction, reserved groove two 49 coincides with reserved groove three 410, so that the geothermal water flowing through reserved groove one 48 contains relatively large sand and gravel particles, and the geothermal water flowing through reserved groove two 49 contains relatively small sand and gravel particles, and the geothermal water can be changed to flow from different reserved groove positions according to different geothermal water usage scenarios.

[0039] See also Figure 2 and Figure 6 As shown, a check structure 6 is provided inside the cyclone desander body 1 and at the bottom end of the water outlet pipe 3. The check structure 6 includes a conical block 61, which is welded to the bottom end of the water outlet pipe 3. A conical groove 64 is provided at the bottom end of the conical block 61. A conical hole 62 arranged in a ring is provided on the upper surface of the conical block 61. The top diameter of the conical hole 62 is larger than the bottom diameter of the conical hole 62. Water flows from the water inlet pipe 2 into the inside of the cyclone desander body 1, and the liquid enters the inside of the cyclone desander body 1 in a spiral shape, and the guide groove 63 enters the inside of the guide groove 63, wherein sand and gravel can also flow from the guide groove The conical hole 62 is used to prevent sand and gravel from flowing back upward from the bottom end of the cyclone desander main body 1. A guide groove 63 is provided on the edge of each conical hole 62. The guide groove 63 is spiral. The rotation direction of the guide groove 63 is the same as the water flow rotation direction of the water inlet pipe 2. The guide groove 63 is used to guide sand and gravel into the conical hole 62. The sand and gravel foreign matter with relatively light density located in the cyclone desander main body 1 is located directly below the conical block 61 and rotates. The conical block 61 blocks the sand and gravel foreign matter, and due to the shape of the conical hole 62, the sand and gravel can be prevented from entering the top of the conical block 61.

[0040] See also Figure 6-Figure 8As shown, a fixing frame 67 is welded to the lower end of the inner part of the cyclone desander body 1, and a rotating shaft 65 is arranged between the fixing frame 67 and the conical block 61. The two ends of the rotating shaft 65 are rotatably connected to the conical block 61 and the fixing frame 67 respectively. A stirring blade 66 is welded to the side wall of the rotating shaft 65. The stirring blade 66 can be pushed when water flows, so that the stirring blade 66 can stir and rotate the sand and gravel, and stir and let the sand and gravel or impurities with relatively low density stand. The two ends of the rotating shaft 65 can rotate, and the stirring blade 66 is used to stir and precipitate the sand and gravel foreign matter. After standing, the sand and gravel or foreign matter enter the waste port 5.

[0041] See also Figure 2 and Figure 8 As shown, the diameter of the conical block 61 and the diameter of the stirring blade 66 are both smaller than the inner diameter of the cyclone desander body 1. There is a gap between the conical block 61 and the inner wall of the cyclone desander body 1, which will not affect the flow of water inside the cyclone desander body 1 and the falling of sand and gravel. The gap between the conical block 61 and the inner wall of the cyclone desander body 1 is used to pass the sand and gravel that rotates and falls along the inner wall of the cyclone desander body 1.

[0042] It should be noted that the water input by the water inlet pipe 2 enters the interior of the cyclone desander body 1, and the water flow rotates along the interior of the cyclone desander body 1, and the water flow rotates along the guide groove 63 of the conical block 61, so that the water flow flows from the inner wall of the cyclone desander body 1 and flows inside the conical hole 62 at the same time, and the heavier sand and gravel are affected by the cyclone so that the sand and gravel can be gathered on the inner wall of the cyclone desander body 1, and the lighter sand and gravel are gathered in the middle of the cyclone desander body 1, and the water flow can also push the stirring blade 66 to rotate around the rotating shaft 65. By rotating, the lighter sand and gravel in the cyclone desander main body 1 can be stirred and then left to stand, so that the larger sand and gravel on the inner wall of the cyclone desander main body 1 and the smaller sand and gravel in the middle are settled to the bottom of the cyclone desander main body 1. Due to the shape of the conical hole 62 of the conical block 61, it is convenient for sand and gravel to fall from top to bottom, and it is difficult for sand and gravel to fall from bottom to top, which reduces the reflux of sand and gravel from the bottom of the conical block 61 to the sieve plate 1 46 and the sieve plate 2 47, and the shape of the guide groove 63 makes it easier for sand and gravel to enter the bottom of the conical block 61.

[0043] See also Figure 2 and Fig. 9As shown, a cleaning structure 7 is provided on the inner wall of the cyclone desander body 1 and below the sieve plate 46. The cleaning structure 7 includes an internal gear 71 welded to the inner wall of the cyclone desander body 1. The internal gear 71 is located below the sieve plate 46, so that the sieve plate 46 rotates relative to the internal gear 71, thereby not affecting the rotation of the sieve plate 46. At least three groups of fixed shafts 72 are provided on the edge of the sieve plate 46. The top of each fixed shaft 72 is rotatably connected to the sieve plate 46. A cleaning brush 74 is provided on the outside of the fixed shaft 72, and the cleaning brush 74 is connected to the sieve plate 46. The inner wall of the cyclone desander body 1 is in contact with each other, and a gear three 73 is provided at the upper end of the fixed shaft 72 and located at the internal gear 71, and the gear three 73 is meshed with the internal gear 71, and the gear three 73 rotates synchronously with the fixed shaft 72, and a retaining frame 75 is provided between the bottom ends of each fixed shaft 72. When the sieve plate 46 rotates, the gear three 73 can be driven to rotate, and at this time, the gear three 73 is meshed with the internal gear 71, so that the cleaning brush 74 can rotate around the fixed shaft 72, and the cleaning brush 74 is used to clean the inner wall of the cyclone desander body 1.

[0044] See also Fig. 9 and Fig.10 As shown, the cleaning brush 74 revolves around the axis of the cyclone desander body 1 while rotating around its axis, the retaining frame 75 rotates around the axis of the cyclone desander body 1, the screen plate 46 and the retaining frame 75 rotate so that the cleaning brush 74 revolves around the axis of the cyclone desander body 1, and there is a gap between the side wall of the retaining frame 75 and the inner wall of the cyclone desander body 1 for sand and gravel to pass through, and the sand and gravel in the gap of the retaining frame 75 falls to the waste port 5.

[0045] It should be noted that when the motor 41 rotates forward and reverse, each gear rotates so that the sieve plate 46 of the fixed sleeve 44 rotates forward and reverse, and the rotating gear three 73 rotates with the internal gear 71, so that the sieve plate 46 rotates around the fixed shaft 72, and the angle of each forward or reverse rotation of the sieve plate 46 is 120°, and the cleaning brush 74 rotates with the sieve plate 46. Multiple groups of cleaning brushes 74 clean the inner wall of the cyclone desander body 1 back and forth. Since the interior of the retaining frame 75 can rotate driven by each fixed shaft 72, sand and gravel fall from the edge gap of the retaining frame 75 to prevent sand and gravel from accumulating on the inner wall of the cyclone desander body 1.

[0046] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A geothermal water desander device for geothermal utilization, comprising a cyclone desander body (1), a water inlet pipe (2), a water outlet pipe (3) and a waste port (5), wherein the water inlet pipe (2) is arranged at the upper end of the side wall of the cyclone desander body (1) in a tangential direction, and the water outlet pipe (3) is arranged at the top end of the cyclone desander body (1), and the waste port (5) is arranged at the bottom end of the cyclone desander body (1); characterized in that: The top of the cyclone desander body (1) is provided with a filtering and screening structure (4), the filtering and screening structure (4) comprising a motor (41), the motor (41) being provided at the top of the outer wall of the cyclone desander body (1), the inner top of the cyclone desander body (1) being provided with a fixed plate (45), a second sieve plate (47) and a first sieve plate (46), the fixed plate (45), the second sieve plate (47) and the first sieve plate (46) being arranged from top to bottom, the filter hole diameter of the first sieve plate (46) being larger than the filter hole diameter of the second sieve plate (47), the first sieve plate (46) and the second sieve plate (47) being used for screening sand and gravel of different particle sizes, a fixed sleeve (44) being welded in the middle of the fixed plate (45), the second sieve plate (47) and the first sieve plate (46), the top of the fixed sleeve (44) being provided with mutually interlocking sleeves. A meshing gear 1 (42) and a gear 2 (43), wherein the gear 1 (42) is arranged at the output end of the motor (41), the gear 2 (43) rotates synchronously with the fixed sleeve (44), the water outlet pipe (3) passes through the interior of the gear 2 (43), the bottom end of the water outlet pipe (3) is a blind hole, the side wall of the water outlet pipe (3) is rotatably connected to the inner wall of the fixed sleeve (44), the side wall of the fixed sleeve (44) is provided with a reserved groove 1 (48) located between the sieve plate 1 (46) and the sieve plate 2 (47), the side wall of the fixed sleeve (44) is provided with a reserved groove 3 (410) located between the sieve plate 2 (47) and the fixed plate (45), and the side wall of the water outlet pipe (3) is provided with a reserved groove 2 (49), and the rotating reserved groove 2 (49) is used to control the path of liquid flowing from the water outlet pipe (3); A check structure (6) is provided inside the cyclone desander body (1) and at the bottom end of the water outlet pipe (3). The check structure (6) comprises a conical block (61), the conical block (61) is welded to the bottom end of the water outlet pipe (3), a conical groove (64) is provided at the bottom end of the conical block (61), and conical holes (62) arranged in a ring shape are provided on the upper surface of the conical block (61). The top diameter of the conical holes (62) is larger than the bottom diameter of the conical holes (62). The conical holes (62) are used to prevent sand and gravel from flowing back upward from the bottom end of the cyclone desander body (1). A guide groove (63) is provided at the edge of each conical hole (62). The guide groove (63) is spiral-shaped. The rotation direction of the guide groove (63) is the same as the rotation direction of the water flow in the water inlet pipe (2). The guide groove (63) is used to guide sand and gravel into the inside of the conical hole (62); A fixing frame (67) is welded to the lower end of the inner part of the cyclone desander body (1); a rotating shaft (65) is arranged between the fixing frame (67) and the conical block (61); two ends of the rotating shaft (65) are respectively rotatably connected to the conical block (61) and the fixing frame (67); a stirring blade (66) is welded to the side wall of the rotating shaft (65); the stirring blade (66) is used to stir and precipitate sand and gravel foreign matter.

2. The geothermal water desanding equipment for geothermal utilization according to claim 1, characterized in that: A limit block is welded to the inner wall of the cyclone desander body (1), and a fixed plate (45) is located above the limit block. The fixed plate (45) is movably connected to the limit block, and the side walls of the fixed plate (45), the second sieve plate (47) and the first sieve plate (46) are all movably connected to the inner wall of the cyclone desander body (1).

3. The geothermal water desanding equipment for geothermal utilization according to claim 2, characterized in that: The width of the reserved groove 1 (48) and the width of the reserved groove 3 (410) are both matched to the width of the reserved groove 2 (49), and the spacing between the fixed plate (45) and the screen plate 1 (46) is matched to the height of the reserved groove 2 (49), the angle between the reserved groove 1 (48), the reserved groove 3 (410) and the reserved groove 2 (49) of the water outlet pipe (3) is 120 degrees, and the water outlet pipe (3) rotates relative to the fixed sleeve (44).

4. The geothermal water desanding equipment for geothermal utilization according to claim 3, characterized in that: A sealing groove is provided on the side wall of the water outlet pipe (3) around the reserved groove 2 (49), and a sealing strip (411) is provided inside the sealing groove. The size of the sealing strip (411) is larger than the size of the reserved groove 1 (48) or the reserved groove 3 (410).

5. The geothermal water desanding equipment for geothermal utilization according to claim 4, characterized in that: The diameter of the conical block (61) and the diameter of the stirring blade (66) are both smaller than the inner diameter of the cyclone desander body (1); the gap between the conical block (61) and the inner wall of the cyclone desander body (1) is used to collect sand and gravel that falls along the inner wall of the cyclone desander body (1).

6. A geothermal water desanding device for geothermal utilization according to any one of claims 1 to 4, characterized in that: A cleaning structure (7) is provided on the inner wall of the cyclone desander body (1) and below the sieve plate one (46). The cleaning structure (7) comprises an internal gear (71) welded to the inner wall of the cyclone desander body (1). The internal gear (71) is located below the sieve plate one (46). At least three groups of fixed shafts (72) are provided on the edge of the sieve plate one (46). The top end of each fixed shaft (72) is rotatably connected to the sieve plate one (46). A cleaning brush (74) is provided on the outside of the fixed shaft (72), and the cleaning brush (74) is in contact with the inner wall of the cyclone desander body (1). A gear three (73) is provided on the upper end of the fixed shaft (72) and located at the internal gear (71). The gear three (73) is meshed with the internal gear (71). The gear three (73) rotates synchronously with the fixed shaft (72). A retaining frame (75) is provided between the bottom ends of the fixed shafts (72).

7. The geothermal water desanding equipment for geothermal utilization according to claim 6, characterized in that: The cleaning brush (74) revolves around the axis of the cyclone desander body (1) and simultaneously rotates around its own axis. The retaining frame (75) rotates around the axis of the cyclone desander body (1). A gap exists between the side wall of the retaining frame (75) and the inner wall of the cyclone desander body (1) for sand and gravel to pass through.

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