A geothermal pipeline inner wall cleaning device

Abstract

The present invention provides a device for cleaning the inner wall of a geothermal pipeline, comprising a plate frame assembly and a positioning and sealing mechanism, wherein the plate frame assembly comprises a first plate frame, a second plate frame, a third plate frame, a fourth plate frame and two storage slots; wherein the second plate frame is installed on one side of the first plate frame, and the third plate frame is installed on one side of the second plate frame; the present invention drives the sealing ring to fit with the inner wall of the pipeline through the expansion of the air bag, so that the first plate frame, the second plate frame, the third plate frame and the fourth plate frame are fixed on the inner wall of the pipeline, and a relatively sealed water collection space is formed between the second plate frame and the third plate frame, and then water is injected into the water collection space for filling through the flushing mechanism, and then the inner wall of the pipeline is scrubbed and descaled in water in a rotating manner through the scrubbing mechanism, so as to avoid damage to the inner wall of the pipeline caused by dry brushing, improve the descaling and cleaning effect, and the scale fallen in the water collection space can be discharged by the flushing mechanism.

Description

Technical Field

[0001] The invention relates to a cleaning device, in particular to a geothermal pipeline inner wall cleaning device, belonging to the technical field of pipeline scale cleaning. Background Art

[0002] Pipeline inner wall cleaning is an important maintenance work, which involves the removal of dirt, sediment, microorganisms and other harmful substances on the inner wall of the pipeline. It has the functions of ensuring the normal operation of the pipeline, extending the service life of the pipeline, preventing pipeline damage, ensuring water quality / medium quality and improving energy efficiency.

[0003] Descaling and cleaning the inner wall of the pipe is one of the maintenance tasks of geothermal pipes. This is mainly because the calcium and magnesium ions in the water will form scale after heating, which will cause the thickness of the inner wall of the pipe to increase, reduce thermal efficiency, and may even cause pipe blockage and damage. By regularly descaling and cleaning the inner wall of the pipe, the service life of the pipe can be effectively extended and the thermal efficiency can be maintained.

[0004] Patent document CN115971180B discloses a denitrification pipeline descaling robot, which can combine the pipeline robot with a blade and brush disc descaling method, thereby minimizing the damage to the pipeline and reducing some unnecessary investment in pipeline cleaning in thermal power plants; however, although the robot can reduce the damage to the pipeline, during the descaling process, the inside of the pipeline is in a waterless state, just like the traditional descaling method, resulting in the dirt brush disc only being able to perform dry brushing when scrubbing and cleaning the scale, which will inevitably cause certain damage to the inner wall of the pipeline, and the dry brush descaling and cleaning effect is poor.

[0005] Patent document CN219188006U discloses a descaling and cleaning device for plumbing pipes, which can effectively descal and clean plumbing pipes, has a good cleaning effect, and a short cleaning time, which is easy to use; however, although the device uses a high-pressure water pipe for cleaning during the descaling process, the pipe is not in a sealed state, resulting in the flushing water being unable to effectively stay in the pipe, causing its hard bristles to still dry-brush the inner wall of the pipe, affecting the scrubbing and descaling effect, and causing damage to the inner wall of the pipe.

[0006] Therefore, a geothermal pipeline inner wall cleaning device is proposed. Summary of the invention

[0007] In view of this, the present invention provides a geothermal pipe inner wall cleaning device to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial choice.

[0008] The technical solution of the embodiment of the present invention is implemented as follows: a geothermal pipe inner wall cleaning device includes a plate frame assembly and a positioning sealing mechanism, wherein the plate frame assembly includes a first plate frame, a second plate frame, a third plate frame, a fourth plate frame and two storage slots;

[0009] Wherein, the second plate rack is installed on one side of the first plate rack, the third plate rack is installed on one side of the second plate rack, the fourth plate rack is installed on one side of the third plate rack, the two storage grooves are respectively arranged between the first plate rack and the second plate rack, and between the third plate rack and the fourth plate rack, the positioning and sealing mechanism is installed between the first plate rack, the second plate rack, the third plate rack and the fourth plate rack, a brushing mechanism and a driving mechanism are installed between the second plate rack and the third plate rack, a flushing mechanism is provided on one side of the first plate rack, and a dredging mechanism is installed at one end of the fourth plate rack;

[0010] The positioning and sealing mechanism uses an inflatable expansion method to form a water collecting space in the pipeline, and is used to fix the first plate frame, the second plate frame, the third plate frame and the fourth plate frame in the pipeline; the positioning and sealing mechanism includes two sealing rings and two air bags;

[0011] The two airbags are respectively fixedly connected to the inner side walls of the two storage grooves, and the inner side walls of the two sealing rings are respectively fixedly connected to the outer side walls of the two airbags;

[0012] The brushing mechanism is used to connect the second plate frame and the third plate frame, and to brush and remove scale in the pipeline by rotating;

[0013] The flushing mechanism is used to inject water into the water collection space and to discharge the water in the space, so as to discharge the scale removed by scrubbing;

[0014] The dredging mechanism is used to break the scale that is seriously blocked on one side of the fourth plate frame, so as to ensure the smooth advancement of the fourth plate frame;

[0015] Wherein, the driving mechanism is used to cooperate with the positioning and sealing mechanism driving device to move forward in the pipeline.

[0016] Further preferably, the positioning and sealing mechanism further includes two shunt pipes, two electromagnetic three-way valves, two air guide pipes, a telescopic hose and a first air supply pipe;

[0017] Among them, the two electromagnetic three-way valves are respectively installed on the inner walls of the second plate frame and the third plate frame, one end of the two shunt pipes are respectively connected to one end of the two electromagnetic three-way valves, the other ends of the two shunt pipes are respectively connected to the two air bags, and one end of the first air supply pipe passes through the first plate frame and is connected to one end of one of the electromagnetic three-way valves.

[0018] Further preferably, one end of the two air guide tubes is respectively connected to one adjacent end of the two electromagnetic three-way valves, and both ends of the telescopic hose are respectively connected to one adjacent end of the two air guide tubes.

[0019] Further preferably, the scrubbing mechanism comprises a plurality of transverse plates, a plurality of connecting frames, two connecting plates, two gears, two synchronous motors and a plurality of hard bristles;

[0020] Among them, the bottoms of several of the horizontal plates are respectively hinged to the middle parts of several of the connecting frames, one ends of several of the connecting frames are respectively hinged to the inner walls of the two connecting plates, and the two connecting plates are respectively rotatably connected to the adjacent side of the second plate frame and the third plate frame.

[0021] Further preferably, the two gears are rotatably connected to one side of the inner wall of the second plate frame and the third plate frame respectively, the outer walls of the two gears are respectively meshed and connected with the outer walls of the two connecting plates, the two synchronous motors are respectively installed on one side of the inner wall of the second plate frame and the third plate frame, and the output shafts of the two synchronous motors are respectively fixedly connected to one end of the two gears.

[0022] Further preferably, the flushing mechanism includes a water supply pipe, a water return pipe and a water collecting cover;

[0023] Among them, one end of the water supply pipe passes through the inner wall of the first plate frame and is fixedly connected to one side of the inner wall of the second plate frame, the outer wall of the water collecting cover is fixedly connected to the other side of the inner wall of the second plate frame, and one end of the return pipe is connected to one side of the water collecting cover.

[0024] Further preferably, the dredging mechanism comprises a driving motor, a cutter holder and a plurality of toothed cutter bodies;

[0025] Wherein, the driving motor is installed at one end of the fourth plate frame, the tool holder is fixedly connected to the output shaft of the driving motor, and a plurality of the toothed cutter bodies are fixedly connected to the outer side wall of the tool holder.

[0026] Further preferably, the driving mechanism comprises a hollow cylinder, a connecting ear and a second air supply pipe;

[0027] Among them, the hollow cylinder is installed on one side of the second plate frame, the connecting ear is fixedly connected to one side of the third plate frame, the piston rod of the hollow cylinder is hinged to the inner wall of the connecting ear, one end of the second air supply pipe passes through one side of the first plate frame and the second plate frame and is connected to the hollow cylinder, and the air guide pipe and the telescopic hose are both arranged inside the hollow cylinder.

[0028] Further preferably, one side of the third plate frame and the first plate frame are hinged with a plurality of roller frames, one side of several of the roller frames are rotatably connected to the first roller, both sides of several of the roller frames are fixedly connected with a plurality of torsion springs, and one end of several of the torsion springs away from the roller frames are respectively fixedly connected to the inner side walls of the third plate frame and the first plate frame.

[0029] Further preferably, the outer walls of the water supply pipe, the return pipe, the second air supply pipe and the first air supply pipe are covered with pipe sleeves, both ends of several of the horizontal plates are fixedly connected to expansion frames, and the inner wall of the expansion frame is rotatably connected to a second roller.

[0030] The embodiment of the present invention has the following advantages due to the adoption of the above technical solution:

[0031] 1. The present invention drives the sealing ring to fit with the inner wall of the pipe through the expansion of the airbag, so that the first plate frame, the second plate frame, the third plate frame and the fourth plate frame are fixed on the inner wall of the pipe, and a relatively sealed water collection space is formed between the second plate frame and the third plate frame. Then, water is injected into the water collection space for filling through the flushing mechanism, and then the inner wall of the pipe is scrubbed and descaled in water in a rotating manner through the brushing mechanism, thereby avoiding damage to the inner wall of the pipe caused by dry brushing, improving the descaling effect, and the flushing mechanism can be used to discharge the scale that has fallen off in the water collection space.

[0032] 2. The present invention uses a dredging mechanism to break and clean the scale that is seriously blocked on one side of the fourth plate frame, so as to prevent the device from being unable to move smoothly in the geothermal pipeline due to serious blockage of the scale, so that the device can cope with complex working environments.

[0033] 3. The present invention uses a driving mechanism to cooperate with the sequentially inflated air bags, so that the entire device can move forward in the pipeline, so as to cooperate with the brushing mechanism, the flushing mechanism and the dredging mechanism to gradually clean the inner wall of the pipeline.

[0034] The above summary is for illustrative purposes only and is not limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present invention will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0036] Figure 1It is a structural diagram of the present invention;

[0037] Figure 2 It is a side view structural schematic diagram of the present invention;

[0038] Figure 3 It is a schematic diagram of the use state of the present invention;

[0039] Figure 4 It is a schematic cross-sectional structure diagram of the present invention from a first viewing angle;

[0040] Figure 5 For the present invention Figure 4 A schematic diagram of the enlarged structure of region A;

[0041] Figure 6 is a schematic cross-sectional structural diagram of the present invention from a second viewing angle;

[0042] Figure 7 is an axonometric view of the airbag of the present invention;

[0043] Figure 8 It is an axonometric view of the roller frame of the present invention;

[0044] Fig. 9 It is a schematic diagram of the water flow direction in the water collection space and the movement direction of the device of the present invention.

[0045] Reference numerals: 1, plate frame assembly; 2, positioning and sealing mechanism; 3, brushing mechanism; 4, flushing mechanism; 5, unblocking mechanism; 6, driving mechanism; 101, first plate frame; 102, second plate frame; 103, third plate frame; 104, fourth plate frame; 105, storage slot; 201, sealing ring; 202, air bag; 203, shunt pipe; 204, electromagnetic three-way valve; 205, air guide pipe; 206, telescopic hose; 207, first air supply pipe; 301, horizontal plate; 302, connecting frame; 303, connecting plate; 304, gear; 305, synchronous motor; 306, hard bristles; 401, water supply pipe; 402, return pipe; 403, water collecting cover; 501, driving motor; 502, tool holder; 503, toothed tool body; 601, hollow cylinder; 602, connecting ear; 603, second air supply pipe; 71, first roller; 72, roller frame; 73, torsion spring; 74, pipe sleeve; 75, extension frame; 76, second roller. DETAILED DESCRIPTION

[0046] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0047] It should be noted that the terms "first", "second", "symmetrical", "array", etc. are only used to distinguish between description and position description purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the definition of "first", "symmetrical", etc. can explicitly or implicitly include one or more of these features; similarly, when the number of certain features is not limited in the form of words such as "two" or "three", it should be noted that this feature also explicitly or implicitly includes one or more feature quantities.

[0048] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0049] like Figure 1-Figure 8 As shown, an embodiment of the present invention provides a geothermal pipe inner wall cleaning device, including a plate frame assembly 1 and a positioning sealing mechanism 2, wherein the plate frame assembly 1 includes a first plate frame 101, a second plate frame 102, a third plate frame 103, a fourth plate frame 104 and two storage slots 105;

[0050] The second plate frame 102 is installed on one side of the first plate frame 101, the third plate frame 103 is arranged on one side of the second plate frame 102, and the fourth plate frame 104 is installed on one side of the third plate frame 103. Two storage grooves 105 are respectively arranged between the first plate frame 101 and the second plate frame 102, and between the third plate frame 103 and the fourth plate frame 104. The positioning and sealing mechanism 2 is installed between the first plate frame 101, the second plate frame 102, the third plate frame 103 and the fourth plate frame 104. A brushing mechanism 3 and a driving mechanism 6 are installed between the second plate frame 102 and the third plate frame 103. A flushing mechanism 4 is provided on one side of the first plate frame 101, and a dredging mechanism 5 is installed at one end of the fourth plate frame 104.

[0051] The positioning and sealing mechanism 2 uses an inflatable manner to form a water collecting space in the pipeline, and is used to fix the first plate frame 101, the second plate frame 102, the third plate frame 103 and the fourth plate frame 104 in the pipeline; the positioning and sealing mechanism 2 includes two sealing rings 201 and two air bags 202;

[0052] The two airbags 202 are respectively fixedly connected to the inner side walls of the two storage grooves 105, and the inner side walls of the two sealing rings 201 are respectively fixedly connected to the outer side walls of the two airbags 202;

[0053] The scrubbing mechanism 3 is used to connect the second plate frame 102 and the third plate frame 103, and scrub and descale the inside of the pipeline by rotating;

[0054] The flushing mechanism 4 is used to inject water into the water collection space and to discharge the water in the space, so as to discharge the scale removed by scrubbing;

[0055] The dredging mechanism 5 is used to break the scale that is seriously blocked on one side of the fourth plate frame 104, so as to ensure the smooth advancement of the fourth plate frame 104;

[0056] The driving mechanism 6 is used to cooperate with the positioning and sealing mechanism 2 to drive the device to move forward in the pipeline.

[0057] In one embodiment, the positioning and sealing mechanism 2 further includes two flow dividers 203, two electromagnetic three-way valves 204, two air guide tubes 205, a telescopic hose 206 and a first air supply tube 207;

[0058] Among them, the two electromagnetic three-way valves 204 are respectively installed on the inner walls of the second plate frame 102 and the third plate frame 103, one end of the two shunt pipes 203 are respectively connected to one end of the two electromagnetic three-way valves 204, the other ends of the two shunt pipes 203 are respectively connected to the two air bags 202, one end of the first air supply pipe 207 passes through the first plate frame 101 and is connected to one end of an electromagnetic three-way valve 204, one end of the two air guide pipes 205 are respectively connected to the adjacent ends of the two electromagnetic three-way valves 204, and the two ends of the telescopic hose 206 are respectively connected to the adjacent ends of the two air guide pipes 205.

[0059] Air is injected into the interior of the two air bags 202 through the first air supply pipe 207 using two electromagnetic three-way valves 204, two diversion pipes 203, two air guide pipes 205 and a telescopic hose 206, so that the fixation of the first plate frame 101 and the second plate frame 102, the third plate frame 103 and the fourth plate frame 104 can be controlled by controlling the air pressure in the two air bags 202.

[0060] In one embodiment, the scrubbing mechanism 3 includes a plurality of transverse plates 301, a plurality of connecting frames 302, two connecting plates 303, two gears 304, two synchronous motors 305 and a plurality of hard bristles 306;

[0061] Among them, the bottoms of several horizontal plates 301 are respectively hinged to the middle parts of several connecting frames 302, one ends of several connecting frames 302 are respectively hinged to the inner walls of two connecting plates 303, the two connecting plates 303 are respectively rotatably connected to the adjacent sides of the second plate frame 102 and the third plate frame 103, the two gears 304 are respectively rotatably connected to the inner side walls of the second plate frame 102 and the third plate frame 103, the outer side walls of the two gears 304 are respectively meshed and connected with the outer side walls of the two connecting plates 303, the two synchronous motors 305 are respectively installed on the inner side walls of the second plate frame 102 and the third plate frame 103, the output shafts of the two synchronous motors 305 are respectively fixedly connected to one end of the two gears 304, both ends of several horizontal plates 301 are fixedly connected with extension frames 75, and the inner side walls of the extension frames 75 are rotatably connected with the second roller 76.

[0062] Two synchronous motors 305 simultaneously drive two gears 304 to rotate, and the two rotating gears 304 respectively drive the connecting disk 303 to rotate synchronously. The rotating connecting disk 303 drives the horizontal plate 301 to move by the connecting frame 302, and the moving horizontal plate 301 drives the hard bristles 306 to scrub the scale on the inner wall of the pipe in water.

[0063] By using the extension frame 75 and the second roller 76 to reduce the friction between the transverse plate 301 and the inner wall of the pipe, it is prevented that the transverse plate 301 is excessively tilted to interfere with the movement of the connecting frame 302 or that excessive scale in the pipe interferes with the movement of the transverse plate 301.

[0064] In one embodiment, the flushing mechanism 4 includes a water supply pipe 401, a water return pipe 402 and a water collection cover 403;

[0065] Among them, one end of the water supply pipe 401 passes through the inner wall of the first plate frame 101 and is fixedly connected to one side of the inner wall of the second plate frame 102, the outer wall of the water collecting cover 403 is fixedly connected to the other side of the inner wall of the second plate frame 102, and one end of the return pipe 402 is connected to one side of the water collecting cover 403.

[0066] Water is injected into the water collection space through the water supply pipe 401 so as to fill the space with water. The water supply pipe 401 can be used to continuously supply water to the water collection space, and the water in the water collection space can be discharged using the return pipe 402 in conjunction with the water collection cover 403, so that the scale that has been brushed off in the water collection space can be brought out with the flowing water.

[0067] In one embodiment, the dredging mechanism 5 includes a driving motor 501, a knife holder 502 and a plurality of toothed knife bodies 503;

[0068] The driving motor 501 is installed at one end of the fourth plate frame 104 , the tool holder 502 is fixedly connected to the output shaft of the driving motor 501 , and the plurality of toothed cutter bodies 503 are fixedly connected to the outer side wall of the tool holder 502 .

[0069] The output shaft of the driving motor 501 drives the cutter holder 502 to rotate, and the rotating cutter holder 502 drives the toothed cutter body 503 to break and clean the scale that is seriously blocked in the forward direction of the fourth plate frame 104.

[0070] In one embodiment, the driving mechanism 6 includes a hollow cylinder 601, a connecting ear 602 and a second air supply pipe 603;

[0071] Among them, the hollow cylinder 601 is installed on one side of the second plate frame 102, the connecting ear 602 is fixedly connected to one side of the third plate frame 103, the piston rod of the hollow cylinder 601 is hinged to the inner wall of the connecting ear 602, one end of the second air supply pipe 603 passes through one side of the first plate frame 101 and the second plate frame 102 and is connected to the hollow cylinder 601, and the air guide pipe 205 and the telescopic hose 206 are both arranged inside the hollow cylinder 601.

[0072] Under the condition that the first plate frame 101 and the second plate frame 102 are fixed, the second air supply pipe 603 is used to provide power for the hollow cylinder 601, and the piston rod of the hollow cylinder 601 can be used to drive the connecting ear 602 to move, and the moving connecting ear 602 drives the fourth plate frame 104 to move by using the third plate frame 103; under the condition that the third plate frame 103 drives the fourth plate frame 104 to be fixed, the hollow cylinder 601 can be used to drive the first plate frame 101 and the second plate frame 102 to move.

[0073] In one embodiment, a plurality of roller frames 72 are hingedly connected to one side of the third plate frame 103 and the first plate frame 101, a first roller 71 is rotatably connected to one side of the plurality of roller frames 72, a plurality of torsion springs 73 are fixedly connected to both sides of the plurality of roller frames 72, and one end of the plurality of torsion springs 73 away from the roller frames 72 is fixedly connected to the inner side walls of the third plate frame 103 and the first plate frame 101, respectively.

[0074] The first roller 71 is driven in turn by the third plate frame 103 and the first plate frame 101 to be squeezed and fitted against the inner wall of the pipe, so that the roller frame 72 is driven to rotate under the action of pressure, and the rotating roller frame 72 drives the torsion spring 73 to twist, so that the twisted torsion spring 73 can be used to provide reverse thrust for the roller frame 72 and the first roller 71.

[0075] In one embodiment, the outer side walls of the water supply pipe 401 , the water return pipe 402 , the second air supply pipe 603 and the first air supply pipe 207 are covered with a pipe sleeve 74 .

[0076] By using the pipe sleeve 74 to constrain the water supply pipe 401, the return pipe 402, the second air supply pipe 603 and the first air supply pipe 207, the pipes are prevented from being entangled during the use of the device.

[0077] When the present invention is working: first, the inner wall of the opening at one end of the geothermal pipe is manually cleaned so that the entire device can be smoothly placed into the pipe, and then the third plate frame 103 and the first plate frame 101 are used to drive the first roller 71 to squeeze and fit with the inner wall of the pipe in turn, so that the roller frame 72 is driven to rotate under the action of pressure, and the rotating roller frame 72 drives the torsion spring 73 to twist, so that the twisted torsion spring 73 can be used to provide a reverse thrust for the roller frame 72 and the first roller 71, so as to support the entire device in the middle of the pipe, and prevent the outer wall of the first plate frame 101, the second plate frame 102, the third plate frame 103 or the fourth plate frame 104 from contacting the inner wall of the pipe before the airbag 202 expands.

[0078] When the device is placed in place, air is injected into the air bag 202 between the first plate frame 101 and the second plate frame 102 through the first air supply pipe 207 in conjunction with an electromagnetic three-way valve 204 and a diverter pipe 203, so that the air pressure drives the sealing ring 201 to squeeze and fit the inner wall of the pipe, so as to fix the first plate frame 101 and the second plate frame 102 inside the pipe. When the first plate frame 101 and the second plate frame 102 are fixed, the second air supply pipe 603 is used to provide power for the hollow cylinder 601 so that the piston rod of the hollow cylinder 601 can be used to drive the connecting ear 602 to move. The moving connecting ear 602 uses the third plate frame 103 to drive the fourth plate frame 104 to move deeper into the pipeline, and the telescopic hose 206 is stretched in the hollow cylinder 601 to cooperate with the air guide pipe 205 to compensate for the pipeline length between the two electromagnetic three-way valves 204. At the same time, the output shaft of the driving motor 501 is used to drive the tool holder 502 to rotate. The rotating tool holder 502 drives the toothed cutter body 503 to crush and clean the scale that is severely blocked in the forward direction of the fourth plate frame 104, so as to prevent the scale from seriously blocking the movement of the fourth plate frame 104.

[0079] When the action of the hollow cylinder 601 is completed, the shunt pipe 203 connected to it is closed through the electromagnetic three-way valve 204 in the second plate frame 102, and the air guide pipe 205 connected to it is opened, so that the two electromagnetic three-way valves 204 are connected by the two air guide pipes 205 and the telescopic hose 206, and then the shunt pipe 203 connected to it is opened through the electromagnetic three-way valve 204 in the third plate frame 103, so that air is injected into the airbag 202 on the third plate frame 103, and then the airbag 202 is used to drive the sealing ring 201 to fit with the inner wall of the pipeline under the action of air pressure, so as to fix the third plate frame 103 and the fourth plate frame 104 inside the pipeline.

[0080] When the third plate frame 103 and the fourth plate frame 104 are fixed, the electromagnetic three-way valve 204 in the third plate frame 103 closes the shunt pipe 203 connected thereto, and the electromagnetic three-way valve 204 in the second plate frame 102 opens the shunt pipe 203 connected thereto, so as to cooperate with the first air supply pipe 207 to discharge the air in the airbag 202 on the second plate frame 102, so as to release the fixation of the first plate frame 101 and the second plate frame 102, and then the hollow cylinder 601 cooperates with the connecting ear 602 and the fixed third plate frame 10 3 drives the first plate frame 101 and the second plate frame 102 to move as a whole, and the moving second plate frame 102 drives the connecting frame 302 to fold by using the connecting plate 303, so that the folded connecting frame 302 cooperates with the horizontal plate 301 to drive the hard bristles 306 to fit with the inner wall of the pipeline, and the friction between the horizontal plate 301 and the inner wall of the pipeline is reduced by using the second roller 76 through the set extension frame 75, so as to prevent the excessive inclination of the horizontal plate 301 from interfering with the movement of the connecting frame 302 or the excessive scale in the pipeline from interfering with the movement of the horizontal plate 301.

[0081] When the hard bristles 306 fit fully with the inner wall of the pipe so that the movement of the cross plate 301 and the connecting frame 302 is restricted, the shunt pipe 203 connected thereto is opened again through the electromagnetic three-way valve 204 on the second plate frame 102, so that air can be injected into the air bag 202 on the second plate frame 102 in cooperation with the first air supply pipe 207, so that the first plate frame 101 and the second plate frame 102 can be fixed again by using the expanded air bag 202, thereby forming a relatively sealed water collection space between the second plate frame 102 and the third plate frame 103, and then water is injected into the water collection space through the water supply pipe 401, so as to fill the space with water; when the space is filled, the two synchronous motors 305 are driven simultaneously to The two gears 304 are driven to rotate, and the two rotating gears 304 drive the connecting disk 303 to rotate synchronously respectively. The rotating connecting disk 303 drives the horizontal plate 301 to move by using the connecting frame 302. The moving horizontal plate 301 drives the hard bristles 306 to scrub the scale on the inner wall of the pipe in water, and drives the water in the water collection space to stir, so that the scale that is scrubbed off can be quickly separated from the pipe wall; then the water supply pipe 401 is used to continuously supply water to the water collection space, and the return pipe 402 is used to cooperate with the water collection cover 403 to discharge the water in the water collection space, so that the flowing water can be used to bring out the scale that is scrubbed off in the water collection space, and then the operation is repeated to gradually complete the descaling and cleaning treatment of the inner wall of the geothermal pipe. Specifically, Fig. 9 As shown, the cleaning device is inserted into the hot water pumping pipeline, and water is injected into the water collection space in the device through the water supply pipe 401, and the space is filled with water. During the cleaning process, the water flow direction and the device movement direction are shown by the arrows in the figure. The water in the water collection space is discharged through the return pipe 402 and the water collection cover 403, so that the scale that has been brushed off in the water collection space can be brought out by the flowing water.

[0082] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of various changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A geothermal pipeline inner wall cleaning device, comprising a plate frame assembly (1) and a positioning sealing mechanism (2), characterized in that: The plate rack assembly (1) comprises a first plate rack (101), a second plate rack (102), a third plate rack (103), a fourth plate rack (104) and two storage slots (105); wherein the second plate frame (102) is mounted on one side of the first plate frame (101), the third plate frame (103) is arranged on one side of the second plate frame (102), the fourth plate frame (104) is mounted on one side of the third plate frame (103), the two storage slots (105) are respectively arranged between the first plate frame (101) and the second plate frame (102), and between the third plate frame (103) and the fourth plate frame (104), the positioning and sealing mechanism (2) is installed between the first plate frame (101), the second plate frame (102), the third plate frame (103) and the fourth plate frame (104), a brushing mechanism (3) and a driving mechanism (6) are installed between the second plate frame (102) and the third plate frame (103), a flushing mechanism (4) is provided on one side of the first plate frame (101), and a dredging mechanism (5) is installed at one end of the fourth plate frame (104); The positioning sealing mechanism (2) forms a water collecting space in the pipeline by means of inflation, and is used to fix the first plate frame (101), the second plate frame (102), the third plate frame (103) and the fourth plate frame (104) in the pipeline; the positioning sealing mechanism (2) comprises two sealing rings (201), two air bags (202), two flow diversion pipes (203), two electromagnetic three-way valves (204), two air guide pipes (205), a telescopic hose (206) and a first air supply pipe (207); The two air bags (202) are respectively fixedly connected to the inner side walls of the two storage grooves (105), and the inner side walls of the two sealing rings (201) are respectively fixedly connected to the outer side walls of the two air bags (202); the two electromagnetic three-way valves (204) are respectively installed on the inner side walls of the second plate frame (102) and the third plate frame (103); one end of the two shunt pipes (203) is respectively connected to one end of the two electromagnetic three-way valves (204), and the other end of the two shunt pipes (203) is respectively connected to the two air bags (202); one end of the first air supply pipe (207) passes through the first plate frame (101) and is connected to one end of one electromagnetic three-way valve (204); The scrubbing mechanism (3) is used to connect the second plate frame (102) and the third plate frame (103), and scrub and remove scale from the inside of the pipeline by means of rotation; The flushing mechanism (4) is used to inject water into the water collection space and to discharge the water in the space, so as to discharge the scale that falls off by scrubbing; The dredging mechanism (5) is used to break up the scale that is blocking one side of the fourth plate rack (104), so as to ensure the smooth advancement of the fourth plate rack (104); The driving mechanism (6) is used to cooperate with the positioning sealing mechanism (2) to drive the device to move forward in a peristaltic manner in the pipeline.

2. The geothermal pipeline inner wall cleaning device according to claim 1, characterized in that: One end of the two air guide tubes (205) is respectively connected to one adjacent end of the two electromagnetic three-way valves (204), and two ends of the telescopic hose (206) are respectively connected to one adjacent end of the two air guide tubes (205).

3. The geothermal pipeline inner wall cleaning device according to claim 1, characterized in that: The scrubbing mechanism (3) comprises a plurality of transverse plates (301), a plurality of connecting frames (302), two connecting plates (303), two gears (304), two synchronous motors (305) and a plurality of hard bristles (306); The bottoms of the plurality of transverse plates (301) are respectively hinged to the middle parts of the plurality of connecting frames (302), one ends of the plurality of connecting frames (302) are respectively hinged to the inner side walls of the two connecting plates (303), and the two connecting plates (303) are respectively rotatably connected to the adjacent sides of the second plate frame (102) and the third plate frame (103).

4. The geothermal pipeline inner wall cleaning device according to claim 3 is characterized in that: The two gears (304) are rotatably connected to one side of the inner wall of the second plate frame (102) and the third plate frame (103), respectively; the outer walls of the two gears (304) are meshedly connected to the outer walls of the two connecting plates (303), respectively; the two synchronous motors (305) are respectively installed on one side of the inner wall of the second plate frame (102) and the third plate frame (103), and the output shafts of the two synchronous motors (305) are respectively fixedly connected to one end of the two gears (304).

5. The geothermal pipeline inner wall cleaning device according to claim 3 is characterized in that: The flushing mechanism (4) comprises a water supply pipe (401), a water return pipe (402) and a water collection cover (403); One end of the water supply pipe (401) passes through the inner wall of the first plate frame (101) and is fixedly connected to one side of the inner wall of the second plate frame (102); the outer wall of the water collecting cover (403) is fixedly connected to the other side of the inner wall of the second plate frame (102); and one end of the water return pipe (402) is connected to one side of the water collecting cover (403).

6. The geothermal pipeline inner wall cleaning device according to claim 1, characterized in that: The dredging mechanism (5) comprises a driving motor (501), a knife holder (502) and a plurality of toothed knife bodies (503); The driving motor (501) is mounted on one end of the fourth plate frame (104), the tool holder (502) is fixedly connected to the output shaft of the driving motor (501), and the plurality of toothed cutter bodies (503) are fixedly connected to the outer side wall of the tool holder (502).

7. The geothermal pipeline inner wall cleaning device according to claim 5, characterized in that: The driving mechanism (6) comprises a hollow cylinder (601), a connecting ear (602) and a second air supply pipe (603); The hollow cylinder (601) is installed on one side of the second plate frame (102), the connecting ear (602) is fixedly connected to one side of the third plate frame (103), the piston rod of the hollow cylinder (601) is hinged to the inner wall of the connecting ear (602), one end of the second air supply pipe (603) passes through one side of the first plate frame (101) and the second plate frame (102) and is connected to the hollow cylinder (601), and the air guide pipe (205) and the telescopic hose (206) are both arranged inside the hollow cylinder (601).

8. The geothermal pipeline inner wall cleaning device according to claim 1, characterized in that: A plurality of roller frames (72) are hingedly connected to one side of the third plate frame (103) and the first plate frame (101); a first roller (71) is rotatably connected to one side of the plurality of roller frames (72); a plurality of torsion springs (73) are fixedly connected to both sides of the plurality of roller frames (72); and ends of the plurality of torsion springs (73) away from the roller frames (72) are fixedly connected to the inner side walls of the third plate frame (103) and the first plate frame (101), respectively.

9. The geothermal pipeline inner wall cleaning device according to claim 7, characterized in that: The outer side walls of the water supply pipe (401), the water return pipe (402), the second air supply pipe (603) and the first air supply pipe (207) are covered with a pipe sleeve (74); both ends of the plurality of transverse plates (301) are fixedly connected to an expansion frame (75); and the inner side wall of the expansion frame (75) is rotatably connected to a second roller (76).

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