Submersible pump special for geothermal well and with anti-blocking function

Abstract

The invention discloses a geothermal well special submersible pump with an anti-blocking function, and relates to the technical field of submersible pumps, the geothermal well special submersible pump comprises an anti-blocking mechanism and a one-way valve mounted at the top of the anti-blocking mechanism, a water pump fixing mechanism is arranged at the bottom of the anti-blocking mechanism, and a fixing nail is arranged at the bottom of the water pump fixing mechanism; the anti-blocking mechanism comprises a submersible pump body, a first filter screen cylinder is fixedly mounted at the bottom of the submersible pump body, a fixed cylinder is fixedly mounted at the bottom of the first filter screen cylinder, a rotating chassis is fixedly mounted at the bottom of the fixed cylinder, and electric telescopic rods are fixedly mounted on the periphery of the top of the rotating chassis; the spiral cleaning blade drives the second rotating disc and the sliding cleaning barrel to ascend, so that the sliding cleaning barrel moves to the top of the first filtering net barrel, geothermal water pumped by the submersible pump can be filtered through the first filtering net barrel, and the phenomenon that the submersible pump is damaged due to the fact that soil in the geothermal water enters the submersible pump is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of submersible pumps, and in particular to a special submersible pump for geothermal wells with a clogging prevention function. Background Art

[0002] A submersible pump refers to an important device for pumping water from deep wells. When in use, the entire unit can be submerged in water to extract groundwater to the surface for domestic water use, mine rescue, industrial cooling, farmland irrigation, seawater lifting, ship ballasting, and can also be used for fountain landscapes. It can also be used to extract groundwater from deep wells and for water pumping projects such as rivers, reservoirs, and canals. It is widely used. In geothermal power generation and heating systems, geothermal well submersible pumps are used to extract high-temperature geothermal water from deep underground to provide the necessary heat source. This hot water is used for geothermal power generation and heating to meet the energy needs of industries, commerce, and residents.

[0003] Patent Publication No. CN211623752U discloses a submersible pump with a clogging prevention function. While the spiral anti-clogging device rotates, the stirring rods arranged on its surface rotate to crush large and viscous aggregates inside the mesh cover, achieving the crushing treatment of the clogging substances inside the submersible pump, ensuring the normal operation of each device inside the pump, preventing the internal pipes of the pump from being blocked, and ensuring the pumping efficiency. At the same time, the driving gear drives the driven gear to rotate, driving the anti-clogging brush to clean the surface of the mesh cover, preventing the feed holes on the surface of the mesh cover from being blocked, achieving the effect of timely cleaning of large particle solids blocking the feed holes, and ensuring a good feed and conveying effect of the submersible pump. However, the following problems still exist in the actual use of this patent: Although the submersible pump with a clogging prevention function rotates the spiral anti-clogging device, and the stirring rods arranged on its surface rotate to crush large and viscous aggregates inside the mesh cover, achieving the crushing treatment of the clogging substances inside the submersible pump, it is not convenient to clean the viscous aggregates on the surface of the mesh cover. The long-term attachment of viscous aggregates on the surface of the mesh cover affects the working efficiency of the centrifugal pump. At the same time, it cannot automatically clean the mesh cover, and manual cleaning of the viscous aggregates on the surface of the mesh cover is required, which is not conducive to continuous pumping of the submersible pump.

[0004] Therefore, a special submersible pump for geothermal wells with a clogging prevention function is proposed to solve the problems raised above. Summary of the Invention

[0005] The object of the present invention is to provide a special submersible pump for geothermal wells with an anti-blocking function, so as to solve the problems proposed in the above background technology that it is not convenient to clean the viscous aggregates on the surface of the mesh cover, the long-term adhesion of viscous aggregates on the surface of the mesh cover affects the working efficiency of the water pump, and at the same time, the mesh cover cannot be automatically cleaned, and manual cleaning of the viscous aggregates on the surface of the mesh cover is required, which is not conducive to continuous pumping of the submersible pump.

[0006] To achieve the above object, the present invention provides the following technical solution: A special submersible pump for geothermal wells with an anti-blocking function, including an anti-blocking mechanism, and a one-way valve installed on the top of the anti-blocking mechanism; A water pump fixing mechanism is arranged at the bottom of the anti-blocking mechanism, and fixing nails are arranged at the bottom of the water pump fixing mechanism; It also includes: The anti-blocking mechanism includes a submersible pump body, a first filter screen cylinder is fixedly installed at the bottom of the submersible pump body, and a fixing cylinder is fixedly installed at the bottom of the first filter screen cylinder; Among them, a rotating chassis is fixedly installed at the bottom of the fixing cylinder, and electric telescopic rods are fixedly installed around the top of the rotating chassis; Among them, a conical disk is fixedly installed at the top of the electric telescopic rod, and a conical inclined groove is fixedly opened on the outer side of the top of the conical disk.

[0007] Preferably, a number of drainage spiral blades are fixedly installed at the top of the conical inclined groove, a support disk is fixedly installed at the top of the drainage spiral blades, a guiding spiral blade is fixedly installed at the top of the support disk, a cleaning brush is fixedly installed inside the guiding spiral blade, and a spiral cleaning blade is fixedly installed at the top of the cleaning brush.

[0008] Preferably, the top of the spiral cleaning blade is rotatably connected to a second rotating disk, a sliding cleaning cylinder is fixedly installed inside the second rotating disk, a rotating connecting shaft is arranged inside the fixing cylinder, and a first impeller is fixedly connected to the top of the rotating connecting shaft.

[0009] Preferably, a pumping auger is fixedly installed at the top of the first impeller, a second impeller is fixedly installed at the top of the pumping auger, a one-way valve is fixedly installed at the top of the submersible pump body, a water suction pipe is fixedly installed at the top of the one-way valve, and a valve protrusion is fixedly installed inside the bottom of the one-way valve.

[0010] Preferably, a valve support is fixedly installed inside the top of the one-way valve, a valve telescopic rod is fixedly installed at the center position of the bottom of the valve support, a valve spring is arranged outside the valve telescopic rod, a valve piston is fixedly installed at the bottom of the valve spring, the valve piston is in fit connection with the valve protrusion, and the valve spring is fixedly installed at the bottom of the valve support.

[0011] Preferably, the water pump fixing mechanism includes a water pump motor, a water pump output end is fixedly installed at the top of the water pump motor, the water pump output end is fixedly installed at the bottom of a rotating connecting shaft, heat dissipation fins are fixedly installed on the outer side of the water pump motor, and a plurality of cleaning sliding rods are fixedly installed between the top and the bottom of the water pump motor.

[0012] Preferably, a cleaning sliding sleeve is slidably connected to the outer side of the cleaning sliding rod, a cleaning ring is fixedly installed on the outer side of the cleaning sliding sleeve, the cleaning ring is in fit connection with the heat dissipation fins, a support top plate is fixedly installed at the bottom of the water pump motor, a support telescopic rod is fixedly installed at the center position of the bottom of the support top plate, and a support spring is arranged on the outer side of the support telescopic rod.

[0013] Preferably, the bottom of the support spring is fixedly installed with a support bottom plate, a support rotating disc is rotatably connected to the bottom of the support bottom plate, a first rotating support is fixedly installed on the outer side of the bottom of the support top plate, a rotating support leg is rotatably connected to the bottom of the first rotating support, a second rotating support is rotatably connected to the bottom of the rotating support leg, and an adjusting bolt is in threaded connection inside the second rotating support.

[0014] Preferably, a support chassis is fixedly installed at the bottom of the second rotating support, a fixing nail is fixedly installed at the bottom of the support chassis, an adjusting knob is rotatably connected to the outer side of the rotating support leg, a first bevel gear is fixedly installed at the end of the adjusting knob, a second bevel gear is meshed and connected to the bottom of the first bevel gear, an adjusting threaded rod is fixedly installed at the bottom of the second bevel gear, an adjusting threaded sleeve is in threaded connection with the outer side of the adjusting threaded rod, a third rotating support is rotatably connected to one side of the adjusting threaded sleeve, a rotating support rod is rotatably connected to the top of the third rotating support, and a fourth rotating support is fixedly installed on the outer side of the support bottom plate.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: for the special submersible pump for geothermal wells with an anti-blocking function, the electric telescopic rod is used to push the conical inclined groove and the support disc to move, so that the support disc drives the guiding spiral blade, the cleaning brush and the spiral cleaning blade to rise. At the same time, the spiral cleaning blade drives the second rotating disc and the sliding cleaning cylinder to rise, so that the sliding cleaning cylinder moves to the top of the first filter screen cylinder. The first filter screen cylinder can filter the geothermal water pumped by the submersible pump, avoiding the entry of soil in the geothermal water into the submersible pump, thereby causing damage to the submersible pump. By driving the third rotating support and the rotating support rod to rotate through the adjusting threaded sleeve, under the action of the fourth rotating support, the angle adjustment of the rotating support leg can be realized. By adjusting the angle of the rotating support leg, the support stability of the water pump motor can be improved. The specific content is as follows: 1. By setting up an anti-blocking mechanism, not only can the electric telescopic rod be used to push the conical chute and the support disc to move, so that the support disc drives the guiding spiral blade, the cleaning brush and the spiral cleaning blade to rise. At the same time, the spiral cleaning blade drives the second rotating disc and the sliding cleaning cylinder to rise, so that the sliding cleaning cylinder moves to the top of the first filter screen cylinder. The first filter screen cylinder can filter the geothermal water pumped by the submersible pump, avoiding the mud in the geothermal water from entering the submersible pump, thus preventing the submersible pump from being damaged. Due to the structural characteristics of the guiding spiral blade on the outer side of the first filter screen cylinder and using the suction of the submersible pump, the guiding spiral blade drives the cleaning brush and the spiral cleaning blade to rotate. The cleaning brush can clean the surface of the first filter screen cylinder, thereby improving the filtering effect of the first filter screen cylinder. At the same time, the cleaning brush drives the spiral cleaning blade to rotate, and the spiral cleaning blade can clean the sliding cleaning cylinder, thereby improving the filtering effect of the sliding cleaning cylinder. Since the rotation speed of the guiding spiral blade is slow, the cleaning effect of the cleaning brush is poor. When a large amount of mud impurities appear on the surface of the first filter screen cylinder, resulting in a decrease in the suction of the submersible pump, starting the electric telescopic rod can drive the conical chute and the support disc to descend. At the same time, the guiding spiral blade drives the spiral cleaning blade and the second rotating disc to descend, and the second rotating disc drives the sliding cleaning cylinder to descend to clean the mud on the surface of the first filter screen cylinder. When the mud on the surface of the first filter screen cylinder is cleaned, the submersible pump generates suction again and drives the guiding spiral blade to rotate. At this time, the electric telescopic rod is restarted to push the sliding cleaning cylinder back to the top of the first filter screen cylinder, thus avoiding the blockage of the submersible pump and improving the service life of the submersible pump. Through the suction generated by the first impeller, the pumping auger and the second impeller, the geothermal water is pumped. Through the valve piston rod and the valve spring inside the check valve, the fitting and separation of the valve piston and the valve protrusion can be realized, so that the geothermal water can only flow in one direction, avoiding the phenomenon of geothermal water backflow; 2. By setting up a pump fixing mechanism, not only can the pump motor drive the pump output end and the rotating connecting shaft to rotate, and the rotating connecting shaft drives the first impeller, the pumping auger and the second impeller to rotate. Through the suction generated by the first impeller, the pumping auger and the second impeller, the effect of pumping water by the submersible pump can be achieved. Through the elastic force of the support telescopic rod and the support spring at the bottom of the support top plate, the rotation of the rotating support rod can be realized, thereby adjusting the angle of the rotating support leg. At the same time, by using the fixing nail at the bottom of the adjusting rotating support leg, the stable support of the pump motor can be realized. By rotating the adjusting knob to drive the first bevel gear to rotate, using the meshing connection between the first bevel gear and the second bevel gear, the adjusting threaded rod can be rotated. By driving the third rotating support and the rotating support rod to rotate through the adjusting thread sleeve, under the action of the fourth rotating support, the angle adjustment of the rotating support leg can be realized. By adjusting the angle of the rotating support leg, the support stability of the pump motor can be improved. Description of the Drawings

[0016] Figure 1Schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 Schematic diagram of the three-dimensional structure of the anti-blocking mechanism in the present invention; Figure 3 Schematic diagram of the three-dimensional structure of the cross-section of the water extraction pipe in the present invention; Figure 4 Schematic diagram of the three-dimensional structure of the fixed cylinder and the rotating chassis in the present invention; Figure 5 Schematic diagram of the three-dimensional structure of the conical inclined groove and the drainage spiral blade in the present invention; Figure 6 Schematic diagram of the three-dimensional structure of the cleaning brush and the spiral cleaning blade in the present invention; Figure 7 Schematic diagram of the three-dimensional structure of the water extraction auger in the present invention; Figure 8 Schematic diagram of the three-dimensional structure of the cross-section of the one-way valve in the present invention; Figure 9 Schematic diagram of the three-dimensional structure of the water pump fixing mechanism in the present invention; Figure 10 Schematic diagram of the three-dimensional structure of the rotating support leg in the present invention; Figure 11 Schematic diagram of the three-dimensional structure of the rotating support rod in the present invention.

[0017] In the figure: 1. Anti-blocking mechanism; 101. Submersible pump body; 102. First filter screen cylinder; 103. Fixed cylinder; 104. Rotating chassis; 105. Electric telescopic rod; 106. Conical disc; 107. Conical inclined groove; 108. Drainage spiral blade; 109. Support disc; 110. Guide spiral blade; 111. Cleaning brush; 112. Spiral cleaning blade; 113. Second rotating disc; 114. Sliding cleaning cylinder; 115. Rotating connecting shaft; 116. First impeller; 117. Water extraction auger; 118. Second impeller; 119. One-way valve; 120. Water extraction pipe; 121. Valve protrusion; 122. Valve support; 123. Valve telescopic rod; 124. Valve spring; 125. Valve piston; 2. Water pump fixing mechanism; 201. Water pump motor; 202. Water pump output end; 203. Heat dissipation fins; 204. Cleaning sliding rod; 205. Cleaning sliding sleeve; 206. Cleaning ring; 207. Support top plate; 208. Support telescopic rod; 209. Support spring; 210. Support bottom plate; 211. Support rotating disc; 212. First rotating support; 213. Rotating support leg; 214. Second rotating support; 215. Adjusting bolt; 216. Support chassis; 217. Fixing nail; 218. Adjusting knob; 219. First bevel gear; 220. Second bevel gear; 221. Adjusting threaded rod; 222. Adjusting threaded sleeve; 223. Third rotating support; 224. Rotating support rod; 225. Fourth rotating support. Detailed implementation method

[0018] Next, in combination with the accompanying drawings in the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] Please refer to Figures 1 - 11 , the present invention provides a technical solution: a special submersible pump for geothermal wells with an anti-blocking function, including an anti-blocking mechanism 1 and a check valve 119 installed on the top of the anti-blocking mechanism 1. A pump fixing mechanism 2 is arranged at the bottom of the anti-blocking mechanism 1, and a fixing nail 217 is arranged at the bottom of the pump fixing mechanism 2. The anti-blocking mechanism 1 includes a submersible pump body 101. A first filter screen cylinder 102 is fixedly installed at the bottom of the submersible pump body 101. A fixing cylinder 103 is fixedly installed at the bottom of the first filter screen cylinder 102. Among them, a rotating chassis 104 is fixedly installed at the bottom of the fixing cylinder 103. Electric telescopic rods 105 are fixedly installed around the top of the rotating chassis 104. Among them, a conical disk 106 is fixedly installed at the top of the electric telescopic rod 105. A conical inclined groove 107 is fixedly opened on the outer side of the top of the conical disk 106. A number of drainage spiral blades 108 are fixedly installed at the top of the conical inclined groove 107. A support disk 109 is fixedly installed at the top of the drainage spiral blade 108. A guiding spiral blade 110 is fixedly installed at the top of the support disk 109. A cleaning brush 111 is fixedly installed inside the guiding spiral blade 110. A spiral cleaning blade 112 is fixedly installed at the top of the cleaning brush 111. The top of the spiral cleaning blade 112 is rotatably connected to a second rotating disk 113. A sliding cleaning cylinder 114 is fixedly installed inside the second rotating disk 113. By using the electric telescopic rod 105 to push the conical inclined groove 107 and the support disk 109 to move, the support disk 109 drives the guiding spiral blade 110, the cleaning brush 111 and the spiral cleaning blade 112 to rise. At the same time, the spiral cleaning blade 112 drives the second rotating disk 113 and the sliding cleaning cylinder 114 to rise, so that the sliding cleaning cylinder 114 moves to the top of the first filter screen cylinder 102. The first filter screen cylinder 102 can filter the geothermal water pumped by the submersible pump, avoiding the soil in the geothermal water from entering the submersible pump, thus causing the phenomenon of submersible pump damage. Through the structural characteristics of the guiding spiral blade 110 on the outer side of the first filter screen cylinder 102 and using the suction of the submersible pump, the guiding spiral blade 110 drives the cleaning brush 111 and the spiral cleaning blade 112 to rotate. The cleaning brush 111 can clean the surface of the first filter screen cylinder 102, thereby improving the filtering effect of the first filter screen cylinder 102.

[0020] A rotating connection shaft 115 is arranged inside the fixed cylinder 103. A first impeller 116 is fixedly connected to the top of the rotating connection shaft 115. A pumping auger 117 is fixedly installed on the top of the first impeller 116. A second impeller 118 is fixedly installed on the top of the pumping auger 117. A check valve 119 is fixedly installed on the top of the submersible pump body 101. A water suction pipe 120 is fixedly installed on the top of the check valve 119. A valve protrusion 121 is fixedly installed on the inner bottom of the check valve 119. A valve support 122 is fixedly installed on the inner top of the check valve 119. A valve telescopic rod 123 is fixedly installed at the center of the bottom of the valve support 122. A valve spring 124 is arranged outside the valve telescopic rod 123. A valve piston 125 is fixedly installed at the bottom of the valve spring 124. The valve piston 125 is in fit connection with the valve protrusion 121. The valve spring 124 is fixedly installed at the bottom of the valve support 122. The sliding cleaning cylinder 114 can be cleaned by the spiral cleaning blade 112, thereby improving the filtering effect of the sliding cleaning cylinder 114. Since the guiding spiral blade 110 rotates at a relatively slow speed, the cleaning effect of the cleaning brush 111 is poor. When a large amount of soil impurities appear on the surface of the first filter screen cylinder 102, the suction of the submersible pump is reduced. Starting the electric telescopic rod 105 can drive the conical inclined groove 107 and the support disk 109 to descend. At the same time, the guiding spiral blade 110 drives the spiral cleaning blade 112 and the second rotating disk 113 to descend, and the sliding cleaning cylinder 114 is driven by the second rotating disk 113 to descend to clean the soil on the surface of the first filter screen cylinder 102. When the soil on the surface of the first filter screen cylinder 102 is cleaned, the submersible pump generates suction again and drives the guiding spiral blade 110 to rotate. At this time, the electric telescopic rod 105 is restarted to push the sliding cleaning cylinder 114 back to the top of the first filter screen cylinder 102, so as to avoid the phenomenon of blockage of the submersible pump and improve the service life of the submersible pump. The suction generated by the first impeller 116, the pumping auger 117 and the second impeller 118 is used to pump the geothermal water. The valve telescopic rod 123 and the valve spring 124 inside the check valve 119 can realize the fit and separation of the valve piston 125 and the valve protrusion 121, so that the geothermal water can only flow in one direction and avoid the phenomenon of geothermal water backflow.

[0021] The water pump fixing mechanism 2 includes a water pump motor 201. A water pump output end 202 is fixedly installed at the top of the water pump motor 201. The water pump output end 202 is fixedly installed at the bottom of a rotating connecting shaft 115. Heat dissipation fins 203 are fixedly installed on the outer side of the water pump motor 201. A number of cleaning sliding rods 204 are fixedly installed between the top and the bottom of the water pump motor 201. The water pump motor 201 drives the water pump output end 202 and the rotating connecting shaft 115 to rotate. The first impeller 116, the pumping auger 117 and the second impeller 118 are driven to rotate by the rotating connecting shaft 115. Through the suction force generated by the first impeller 116, the pumping auger 117 and the second impeller 118, the effect of submersible water pump pumping can be achieved.

[0022] A cleaning sliding sleeve 205 is slidably connected to the outer side of a cleaning sliding rod 204. A cleaning ring 206 is fixedly installed on the outer side of the cleaning sliding sleeve 205. The cleaning ring 206 is fitted and connected to the heat dissipation fins 203. A support top plate 207 is fixedly installed at the bottom of the water pump motor 201. A support telescopic rod 208 is fixedly installed at the center position of the bottom of the support top plate 207. A support spring 209 is arranged on the outer side of the support telescopic rod 208. The bottom of the support spring 209 is fixedly installed with a support bottom plate 210. A support rotating disk 211 is rotatably connected to the bottom of the support bottom plate 210. A first rotating support 212 is fixedly installed on the outer side of the bottom of the support top plate 207. A rotating support leg 213 is rotatably connected to the bottom of the first rotating support 212. A second rotating support 214 is rotatably connected to the bottom of the rotating support leg 213. An adjusting bolt 215 is threadedly connected inside the second rotating support 214. A support chassis 216 is fixedly installed at the bottom of the second rotating support 214. A fixing nail 217 is fixedly installed at the bottom of the support chassis 216. An adjusting knob 218 is rotatably connected to the outer side of the rotating support leg 213. A first bevel gear 219 is fixedly installed at the end of the adjusting knob 218. A second bevel gear 220 is meshed and connected to the bottom of the first bevel gear 219. An adjusting threaded rod 221 is fixedly installed at the bottom of the second bevel gear 220. An adjusting threaded sleeve 222 is threadedly connected to the outer side of the adjusting threaded rod 221. A third rotating support 223 is rotatably connected to one side of the adjusting threaded sleeve 222. A rotating support rod 224 is rotatably connected to the top of the third rotating support 223. A fourth rotating support 225 is rotatably connected to the top of the rotating support rod 224. The fourth rotating support 225 is fixedly installed on the outer side of the support bottom plate 210. Through the elastic action of the support telescopic rod 208 and the support spring 209 at the bottom of the support top plate 207, the rotation of the rotating support rod 224 can be realized, so as to adjust the angle of the rotating support leg 213. At the same time, by using the fixing nail 217 at the bottom of the rotating support leg 213, the stable support of the water pump motor 201 can be realized. By rotating the adjusting knob 218 to drive the first bevel gear 219 to rotate, and using the meshing connection between the first bevel gear 219 and the second bevel gear 220, the adjusting threaded rod 221 can be rotated. By driving the third rotating support 223 and the rotating support rod 224 to rotate through the adjusting threaded sleeve 222, under the action of the fourth rotating support 225, the angle adjustment of the rotating support leg 213 can be realized. By adjusting the angle of the rotating support leg 213, the support stability of the water pump motor 201 can be improved.

[0023] Working principle: Before using this special submersible pump for geothermal wells with anti-blocking function, it is necessary to first check the overall situation of the device to determine that it can work normally. According to Figure 1 - Figure 11As shown in the figure, first, use the electric telescopic rod 105 to push the conical inclined groove 107 and the support disk 109 to move, so that the support disk 109 drives the guide spiral blade 110, the cleaning brush 111 and the spiral cleaning blade 112 to rise. At the same time, the spiral cleaning blade 112 drives the second rotating disk 113 and the sliding cleaning cylinder 114 to rise, so that the sliding cleaning cylinder 114 moves to the top of the first filter screen cylinder 102. The first filter screen cylinder 102 can filter the geothermal water pumped by the submersible pump, avoiding the soil in the geothermal water from entering the submersible pump, thus causing damage to the submersible pump. Due to the structural characteristics of the guide spiral blade 110 on the outer side of the first filter screen cylinder 102 and using the suction of the submersible pump, the guide spiral blade 110 drives the cleaning brush 111 and the spiral cleaning blade 112 to rotate. The cleaning brush 111 can clean the surface of the first filter screen cylinder 102, thereby improving the filtering effect of the first filter screen cylinder 102. At the same time, the cleaning brush 111 drives the spiral cleaning blade 112 to rotate, and the spiral cleaning blade 112 can clean the sliding cleaning cylinder 114, thereby improving the filtering effect of the sliding cleaning cylinder 114.

[0024] Secondly, since the rotation speed of the guide spiral blade 110 is slow, the cleaning effect of the cleaning brush 111 is poor. When a large amount of soil impurities appear on the surface of the first filter screen cylinder 102, the suction of the submersible pump decreases. Starting the electric telescopic rod 105 can drive the conical inclined groove 107 and the support disk 109 to descend. At the same time, the guide spiral blade 110 drives the spiral cleaning blade 112 and the second rotating disk 113 to descend. The second rotating disk 113 drives the sliding cleaning cylinder 114 to descend to clean the soil on the surface of the first filter screen cylinder 102. When the soil on the surface of the first filter screen cylinder 102 is cleaned, the submersible pump generates suction again and drives the guide spiral blade 110 to rotate. At this time, the electric telescopic rod 105 is restarted to push the sliding cleaning cylinder 114 back to the top of the first filter screen cylinder 102, thus avoiding the phenomenon of blockage of the submersible pump and improving the service life of the submersible pump. Through the suction generated by the first impeller 116, the pumping auger 117 and the second impeller 118, the geothermal water is pumped. Through the valve telescopic rod 123 and the valve spring 124 inside the one-way valve 119, the valve piston 125 can be made to fit and separate from the valve projection 121, so that the geothermal water can only flow in one direction, avoiding the phenomenon of geothermal water backflow.

[0025] Finally, through the elastic force of the support telescopic rod 208 and the support spring 209 at the bottom of the support top plate 207, the rotation of the rotating support rod 224 can be realized, so as to adjust the angle of the rotating support leg 213. At the same time, by using the fixing nail 217 at the bottom of the adjusting rotating support leg 213, the stable support of the water pump motor 201 can be realized. By rotating the adjusting knob 218 to drive the first bevel gear 219 to rotate, and using the meshing connection between the first bevel gear 219 and the second bevel gear 220, the adjusting threaded rod 221 can be rotated. By adjusting the threaded sleeve 222, the third rotating support 223 and the rotating support rod 224 can be rotated. Under the action of the fourth rotating support 225, the angle adjustment of the rotating support leg 213 can be realized. By adjusting the angle of the rotating support leg 213, the support stability of the water pump motor 201 can be improved.

[0026] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A submersible pump for geothermal wells with an anti-blocking function, comprising an anti-blocking mechanism (1), and a one-way valve (119) installed on the top of the anti-blocking mechanism (1); A water pump fixing mechanism (2) is provided at the bottom of the anti-blocking mechanism (1), and a fixing nail (217) is provided at the bottom of the water pump fixing mechanism (2); It is characterized in that Also includes: The anti-blocking mechanism (1) comprises a submersible pump body (101), a first filter screen cylinder (102) being fixedly mounted on the bottom of the submersible pump body (101), and a fixing cylinder (103) being fixedly mounted on the bottom of the first filter screen cylinder (102); The bottom of the fixed cylinder (103) is fixedly mounted with a rotating chassis (104), and the top and surrounding of the rotating chassis (104) are fixedly mounted with electric telescopic rods (105); A conical disc (106) is fixedly mounted on the top of the electric telescopic rod (105), and a conical inclined groove (107) is fixedly opened on the outer side of the top of the conical disc (106).

2. A submersible pump for geothermal wells with anti-clogging function according to claim 1, characterized in that: A plurality of drainage spiral blades (108) are fixedly mounted on the top of the conical chute (107); a support plate (109) is fixedly mounted on the top of the drainage spiral blade (108); a guide spiral blade (110) is fixedly mounted on the top of the support plate (109); a cleaning brush (111) is fixedly mounted on the inner side of the guide spiral blade (110); and a spiral cleaning blade (112) is fixedly mounted on the top of the cleaning brush (111).

3. A submersible pump for geothermal wells with anti-clogging function according to claim 2, characterized in that: The top of the spiral cleaning blade (112) is rotatably connected to a second rotating disk (113), a sliding cleaning cylinder (114) is fixedly installed on the inner side of the second rotating disk (113), a rotating connecting shaft (115) is provided on the inner side of the fixed cylinder (103), and the top of the rotating connecting shaft (115) is fixedly connected to a first impeller (116).

4. A submersible pump for geothermal wells with anti-clogging function according to claim 3, characterized in that: A water pumping auger (117) is fixedly mounted on the top of the first impeller (116), a second impeller (118) is fixedly mounted on the top of the water pumping auger (117), a one-way valve (119) is fixedly mounted on the top of the submersible pump body (101), a water pumping pipe (120) is fixedly mounted on the top of the one-way valve (119), and a valve protrusion (121) is fixedly mounted on the inner side of the bottom of the one-way valve (119).

5. A submersible pump for geothermal wells with anti-clogging function according to claim 4, characterized in that: A valve bracket (122) is fixedly mounted on the inner side of the top of the one-way valve (119); a valve telescopic rod (123) is fixedly mounted at the center position of the bottom of the valve bracket (122); a valve spring (124) is arranged on the outer side of the valve telescopic rod (123); a valve piston (125) is fixedly mounted on the bottom of the valve spring (124); the valve piston (125) is fittedly connected to the valve protrusion (121); and the valve spring (124) is fixedly mounted on the bottom of the valve bracket (122).

6. A submersible pump for geothermal wells with anti-clogging function according to claim 5, characterized in that: The water pump fixing mechanism (2) comprises a water pump motor (201), a water pump output end (202) being fixedly mounted on the top of the water pump motor (201), the water pump output end (202) being fixedly mounted on the bottom of the rotating connecting shaft (115), a heat dissipation fin (203) being fixedly mounted on the outside of the water pump motor (201), and a plurality of cleaning sliding rods (204) being fixedly mounted between the top and bottom of the water pump motor (201).

7. A submersible pump for geothermal wells with anti-clogging function according to claim 6, characterized in that: The cleaning sliding rod (204) is slidably connected to a cleaning sliding sleeve (205) on its outer side, a cleaning ring (206) is fixedly mounted on the outer side of the cleaning sliding sleeve (205), and the cleaning ring (206) is fittedly connected to the heat dissipation fins (203); a supporting top plate (207) is fixedly mounted on the bottom of the water pump motor (201), a supporting telescopic rod (208) is fixedly mounted at the bottom center of the supporting top plate (207), and a supporting spring (209) is arranged on the outer side of the supporting telescopic rod (208).

8. A submersible pump for geothermal wells with anti-clogging function according to claim 7, characterized in that: A support base plate (210) is fixedly mounted on the bottom of the support spring (209), a support rotating disk (211) is rotatably connected to the bottom of the support base plate (210), a first rotating support (212) is fixedly mounted on the outer side of the bottom of the support top plate (207), a rotating support leg (213) is rotatably connected to the bottom of the first rotating support (212), a second rotating support (214) is rotatably connected to the bottom of the rotating support leg (213), and an adjusting bolt (215) is internally threadedly connected to the second rotating support (214).

9. A submersible pump for geothermal wells with anti-clogging function according to claim 8, characterized in that: A supporting chassis (216) is fixedly mounted on the bottom of the second rotating support (214); the fixing pin (217) is fixedly mounted on the bottom of the supporting chassis (216); an adjusting knob (218) is rotatably connected to the outer side of the rotating support leg (213); a first bevel gear (219) is fixedly mounted on the end of the adjusting knob (218); the bottom of the first bevel gear (219) is meshingly connected to the second bevel gear (220); an adjusting threaded rod (221) is fixedly mounted on the bottom of the second bevel gear (220); an adjusting threaded sleeve (222) is threadedly connected to the outer side of the adjusting threaded rod (221); a third rotating support (223) is rotatably connected to the rotating support rod (224) at one side of the adjusting threaded sleeve (222); a rotating support rod (224) is rotatably connected to the top of the rotating support rod (224); a fourth rotating support (225) is rotatably connected to the outer side of the supporting base plate (210). The fourth rotating support (225) is fixedly mounted on the outer side of the supporting base plate (210).

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