A MBR membrane device

Abstract

The present invention belongs to the technical field of MBR, and provides an MBR membrane device, including a box body, on which a water inlet pipe and a sewage discharge pipe are arranged, a guide rod is fixedly installed inside the box body, and a plurality of MBR membrane assemblies are slidably installed on the guide rod; a water production assembly is installed on the box body, and the plurality of MBR membrane assemblies are connected to the input end of the water production assembly, and the water production assembly is used to extract water inside the MBR membrane assembly. The present invention can make the MBR membrane assembly and sewage impact each other by slidingly installing the MBR membrane assembly in the box body, and driving the MBR membrane assembly to reciprocate through a reciprocating drive mechanism, thereby reducing the number of impurities in the sewage adhering to the MBR membrane assembly, reducing the probability of the MBR membrane assembly being blocked, reducing the cleaning frequency, and improving the sewage treatment efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of MBR, and in particular relates to an MBR membrane device. Background Art

[0002] MBR is a highly efficient sewage treatment process that combines membrane separation technology with biological treatment technology. It mainly utilizes the selective permeability of the MBR membrane. Water molecules can pass through the micropores on the membrane surface, while macromolecular organic matter, microorganisms and biochemical sludge are retained by the micropores, thereby realizing solid-water separation in the water treatment process, replacing the mud-water gravity sedimentation separation process in the traditional activated sludge treatment process. At the same time, the active bacteria in the sludge are retained in the sewage, thereby increasing the bacteria concentration in the bioreactor, and combined with the aeration system to oxygenate, the biological reaction efficiency of the MBR membrane is improved.

[0003] The MBR membrane is a key component of the MBR and needs to be cleaned frequently to ensure the stability of the membrane flux. In the prior art, the MBR membrane is usually fixedly installed in the MBR membrane device, and then aeration is continuously performed under the MBR membrane to flush the sludge and dirt on the surface of the MBR membrane through gas-liquid two-phase flow to reduce the amount of sludge and dirt attached to the MBR membrane. However, this method cannot prevent sludge and dirt from being contaminated on the MBR membrane, and production still needs to be stopped regularly to lift the MBR membrane assembly out of the water and then manually flush it with a high-pressure water gun. The amount of sludge attached is reduced only by aeration, which is inefficient and requires frequent shutdowns to clean the MBR membrane, which greatly reduces the efficiency of sewage treatment. Summary of the invention

[0004] The object of the present invention is to provide an MBR membrane device, aiming to solve the technical problem in the prior art that the efficiency of reducing the amount of sludge adhesion only by aeration is relatively low.

[0005] The present invention is implemented as follows: an MBR membrane device comprises a box body, a water inlet pipe and a sewage discharge pipe are arranged on the box body, a guide rod is fixedly installed inside the box body, and a plurality of MBR membrane assemblies are slidably installed on the guide rod;

[0006] A water production component is installed on the box body, and a plurality of the MBR membrane components are connected to the input end of the water production component, and the water production component is used to extract water from the inside of the MBR membrane component;

[0007] A reciprocating drive mechanism is also installed on the box body. The reciprocating drive mechanism and several MBR membrane assemblies are all connected in transmission. The reciprocating drive mechanism is used to drive all the MBR membrane assemblies to reciprocate at variable speeds, so that the MBR membrane assemblies and sewage impact each other, reduce the number of impurities in the sewage adhering to the MBR membrane assemblies, reduce the probability of MBR membrane assemblies being blocked, reduce the cleaning frequency, and improve sewage treatment efficiency.

[0008] Further technical solution: the MBR membrane assembly comprises an outer frame, an MBR membrane body is arranged inside the outer frame, and a water collection pipe connected to the MBR membrane body is arranged on the side of the outer frame.

[0009] Further technical solution: The water production component includes a water production main pipe fixedly installed on the box body, and several of the water collecting pipes are connected to the water production main pipe through water production hoses. A water production pump is also installed on the box body, and the water inlet of the water production pump is connected to one end of the water production main pipe.

[0010] Further technical solution: the reciprocating drive mechanism comprises a drive rod rotatably mounted on the box body, and a drive assembly is arranged between each of the MBR membrane modules and the drive rod, and when the drive rod rotates, the drive assembly is used to drive the MBR membrane module to reciprocate;

[0011] The reciprocating drive mechanism further comprises a power assembly, which is mounted on the box body, wherein an output end of the power assembly is connected to one end of a driving rod, and the power assembly is used to drive the driving rod to rotate continuously.

[0012] Further technical solution: the driving assembly includes a guide groove, the guide groove is arranged on the driving rod, the guide groove includes a thread groove and a straight groove, the thread groove and the straight groove are connected to each other at the head and tail, the MBR membrane assembly is equipped with a driving ring, the driving ring is sleeved on the driving rod, the inner side of the driving ring is fixedly connected to a limiting column, and the limiting column is slidably installed in the guide groove;

[0013] The threaded groove can drive the limiting column to move forward. When the limiting column moves into the straight groove, in order to enable the MBR membrane assembly to retreat, a tension spring is connected between the guide rod and the MBR membrane assembly.

[0014] Further technical solution: the drive ring is rotatably mounted on the MBR membrane assembly, the drive assembly also includes a micro-motion structure, the micro-motion structure includes an arc groove opened on the MBR membrane assembly, the drive ring is fixedly connected to a limit stop near the side of the arc groove, and a second compression spring is connected between the limit stop and the side wall of the arc groove.

[0015] Further technical solution: The power assembly includes an electric motor fixedly mounted on a box body, a transmission pair is connected between the electric motor and one end of a driving rod, and the transmission pair is one of a gear pair, a sprocket pair or a belt pair.

[0016] Further technical solution: an aeration assembly is also installed on the box, the aeration assembly includes an aeration pipe fixedly installed inside the box, one end of a plurality of the MBR membrane assemblies are slidably installed on the aeration pipe, an air pump is fixedly installed on the box, and the air outlet of the air pump is connected to one end of the aeration pipe;

[0017] In order to improve the aeration effect, a number of movable nozzle assemblies are installed on the aeration pipe, and all the movable nozzle assemblies are connected to the aeration pipe. When the MBR membrane assembly moves, the MBR membrane assembly will adjust the angle of the output end of the movable nozzle assembly, thereby changing the aeration direction so that the aeration direction can follow the movement of the MBR membrane assembly, so that the air can fully contact the MBR membrane assembly and improve the aeration effect.

[0018] Further technical solution: the movable nozzle assembly comprises a spherical block rotatably mounted on the aeration pipe, a water spray pipe is slidably mounted on the spherical block, a fifth compression spring is connected between the water spray pipe and the spherical block, and a vent hole is opened at one end of the spherical block located inside the aeration pipe, and the vent hole is used to communicate with the water spray pipe;

[0019] In order to allow the water spray pipe to smoothly pass over the MBR membrane assembly, a groove is provided on the top of the aeration pipe.

[0020] Further technical solution: the aeration assembly further comprises a flushing water pump fixedly mounted on the box body, and the water outlet of the flushing water pump is connected to one end of the aeration pipe;

[0021] Connect the water inlet of the flushing water pump to an external water source. The water drawn by the flushing water pump will flow into the aeration pipe and then spray out from the spray pipe to flush the MBR membrane assembly.

[0022] When using an air pump for aeration, in order to avoid air leakage from the flushing water pump and thus reduce the aeration efficiency, a water seal valve is provided at one end of the aeration pipe near the flushing water pump. When using a flushing water pump to flush the MBR membrane assembly, in order to avoid water leakage from the air pump, an air seal valve is provided at one end of the aeration pipe near the air pump. When starting the air pump, the water seal valve is used to separate the aeration pipe from the flushing water pump. When starting the flushing water pump, the air seal valve is used to separate the aeration pipe from the air pump.

[0023] Further technical solution: the water seal valve comprises a first fixed valve body penetrating through and fixed on the aeration pipe, a first communication hole communicating with the aeration pipe is provided on the side of the first fixed valve body located inside the aeration pipe, a first valve block is slidably installed inside the first fixed valve body, a third compression spring is connected between the first valve block and the bottom of the first fixed valve body, a water channel is provided on the side of the first valve block, initially (the third compression spring is in a natural state, and there is no sewage inside the box), the water channel is communicated with the first communication hole, and a first pressure plate is fixedly connected to the top of the first valve block;

[0024] The air sealing valve includes a second fixed valve body that passes through and is fixed on the aeration pipe, a second connecting hole that is connected to the aeration pipe is provided on the side of the second fixed valve body located inside the aeration pipe, an air passage is slidably installed inside the second fixed valve body, a fourth compression spring is connected between the air passage and the bottom of the second fixed valve body, a second valve block is provided on the side of the air passage, initially (the fourth compression spring is in a natural state, and there is no sewage inside the box), the second valve block is not connected with the second connecting hole, and the second valve block is located above the second connecting hole, and a second pressure plate is fixedly connected to the top of the air passage.

[0025] Further technical solution: the guide rod is a hollow tube, the water outlet of the flushing water pump is connected with one end of the guide rod through an upper branch pipe, and a plurality of upper water spray holes are opened on the guide rod.

[0026] Further technical solution: A pressure relief cleaning mechanism is also installed inside the box, and the pressure relief cleaning mechanism includes a fixing frame fixedly connected to the MBR membrane assembly, and the bottom of the fixing frame is fixedly connected to a pressure relief main pipe, one end of the pressure relief main pipe is connected to the aeration pipe through a pressure relief hose, and a plurality of pressure relief cleaning components are installed at the bottom of the pressure relief main pipe, and the pressure relief cleaning components include a fixing cylinder fixedly connected to the pressure relief main pipe, the interior of the fixing cylinder is connected to the pressure relief main pipe, and the interior of the fixing cylinder is slidably connected to a piston plate, and a first pressure relief cleaning component is connected between the piston plate and the bottom of the fixing cylinder. A compression spring, a movable rod is fixedly connected to the bottom of the piston plate, and one end of the movable rod extending out of the fixed cylinder is fixedly connected to a brush plate, a plurality of bristles are arranged at the bottom of the brush plate, a water sleeve is sleeved on the outer side surface of the fixed cylinder, a plurality of water holes connected with the water sleeve are opened on the side wall of the fixed cylinder, initially (when the water pressure in the aeration pipe is not increased), the water hole is located below the piston plate, the movable rod and the brush plate are both hollow structures, a water inlet hole connected with the interior of the fixed cylinder is opened on the side of the movable rod, and a plurality of lower water spray holes are opened at the bottom of the brush plate.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. The present invention slides the MBR membrane assembly in the box and drives the MBR membrane assembly to reciprocate through the reciprocating drive mechanism, so that the MBR membrane assembly and sewage can impact each other, reduce the number of impurities in the sewage attached to the MBR membrane assembly, reduce the probability of the MBR membrane assembly being blocked, reduce the cleaning frequency, and improve the sewage treatment efficiency;

[0029] 2. The present invention, by setting the guide groove as a thread groove and a straight groove, can make the MBR membrane assembly move forward slowly and retreat quickly, so that the MBR membrane assembly can perform variable speed movement, thereby improving the impact effect between the MBR membrane assembly and the sewage, making it easier to fall off the sludge on the MBR membrane assembly, and improving the cleaning effect;

[0030] 3. The present invention provides a micro-motion assembly, which leaves a rotation margin between the MBR membrane assembly and the driving rod, thereby preventing the equipment from being stuck and the power assembly from being damaged. This solves the problem that it takes a certain amount of time for the MBR membrane assembly to return, during which time the limit column will be rotated by the driving rod to a certain angle, and the limit column will block the driving rod from rotating, which may cause damage to the power assembly.

[0031] 4. The present invention reduces the space for pipeline layout in the box and reduces the cost by making the aeration assembly and the flushing water pump share a pipeline and using a water seal valve and an air seal valve to automatically switch the pipeline function;

[0032] 5. The present invention, by providing a movable nozzle assembly, can make the aeration direction follow the movement of the MBR membrane assembly, so that air and water can fully contact the MBR membrane assembly, improving the aeration and flushing effects, and when the MBR membrane assembly passes over the movable nozzle assembly, the air pressure or water pressure in the aeration pipe will be temporarily increased, improving the aeration or flushing effects;

[0033] 6. The present invention provides a pressure relief cleaning mechanism. After the water pressure in the aeration pipe is temporarily increased, the pressure relief cleaning mechanism can remove the excess water pressure and convert it into power, so that the pressure relief cleaning mechanism can clean the sediment in the box body. This not only avoids the increased water pressure from damaging the flushing water pump, but also improves the cleaning effect in the box body. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0035] Figure 2 It is a schematic diagram of the overall internal structure of the present invention from a top view.

[0036] Figure 3 For the present invention Figure 2 Enlarged schematic diagram at point A in the middle.

[0037] Figure 4 It is a schematic diagram of the local structure of the driving rod in the present invention.

[0038] Figure 5 It is a schematic diagram of the cross-sectional structure of the MBR membrane assembly in the present invention.

[0039] Figure 6 For the present invention Figure 5 Enlarged schematic diagram at point C in the middle.

[0040] Figure 7 It is a schematic diagram of the overall internal structure of the present invention.

[0041] Figure 8 For the present invention Figure 7 Enlarged schematic diagram of point B in the middle.

[0042] Fig. 9 It is a schematic diagram of the cross-sectional structure of the aeration tube in the present invention.

[0043] Fig.10 For the present invention Fig. 9 Enlarged schematic diagram at point D in the middle.

[0044] Fig.11 For the present invention Fig. 9 Enlarged schematic diagram at point E in the middle.

[0045] Fig.12 It is a schematic diagram of the partial cross-sectional structure of the pressure relief and cleaning mechanism in the present invention.

[0046] Fig.13 It is a schematic structural diagram of the brush plate in the present invention when viewed from above.

[0047] In the attached drawings: 1. box body; 2. sewage pipe; 3. aeration assembly; 31. upper branch pipe; 32. flushing water pump; 33. water seal valve; 331. first pressure plate; 332. first valve block; 333. water channel; 334. first connecting hole; 335. third compression spring; 336. first fixed valve body; 34. aeration pipe; 35. movable nozzle assembly; 351. water spray pipe; 352. spherical block; 353. fifth compression spring; 354. vent; 36. air seal valve; 361. second pressure plate; 362. second valve block; 363. air channel; 364. second connecting hole; 365. fourth compression spring; 366. second fixed valve body; 37. air pump; 38. groove; 39. upper water spray hole; 4. water production assembly; 41. water production main pipe; 42. Water production hose; 43. Water production pump; 5. Power assembly; 51. Transmission pair; 52. Motor; 6. Drive rod; 7. Pressure relief cleaning mechanism; 71. Pressure relief hose; 72. Fixed frame; 73. Pressure relief main pipe; 74. Fixed cylinder; 75. Water passing sleeve; 76. Movable rod; 77. Brush plate; 78. Brush; 79. Piston plate; 710. Water inlet hole; 711. First compression spring; 712. Water passing hole; 713. Lower water spray hole; 8. MBR membrane assembly; 81. Water collection pipe; 82. Outer frame; 83. MBR membrane body; 9. Drive assembly; 91. Threaded groove; 92. Straight groove; 93. Limit stop; 94. Drive ring; 95. Limit column; 96. Arc groove; 97. Second compression spring; 10. Guide rod; 11. Tension spring. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0049] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0050] like Figure 1-Figure 8 As shown, an MBR membrane device provided by the present invention comprises a box body 1, on which a water inlet pipe and a sewage discharge pipe 2 are arranged, a guide rod 10 is fixedly installed inside the box body 1, and a plurality of MBR membrane assemblies 8 are slidably installed on the guide rod 10;

[0051] A water production component 4 is installed on the box body 1, and a plurality of the MBR membrane components 8 are connected to the input end of the water production component 4, and the water production component 4 is used to extract water from the inside of the MBR membrane component 8;

[0052] A reciprocating drive mechanism is also installed on the box body 1, and the reciprocating drive mechanism and several MBR membrane assemblies 8 are all transmission-connected. The reciprocating drive mechanism is used to drive all the MBR membrane assemblies 8 to reciprocate at variable speeds, so that the MBR membrane assemblies 8 and sewage impact each other, reduce the number of impurities in the sewage adhering to the MBR membrane assemblies 8, reduce the probability of the MBR membrane assemblies 8 being blocked, reduce the cleaning frequency, and improve the sewage treatment efficiency.

[0053] like Figure 2-Figure 3 and Figure 5-Figure 8 As shown, an MBR membrane device provided by the present invention, in this embodiment, the MBR membrane assembly 8 includes an outer frame 82, an MBR membrane body 83 is arranged inside the outer frame 82, and a water collection pipe 81 connected to the MBR membrane body 83 is arranged on the side of the outer frame 82.

[0054] like Figure 2 and Figure 7 As shown, an MBR membrane device provided by the present invention, in this embodiment, the water production component 4 includes a water production main pipe 41 fixedly installed on the box body 1, and a plurality of the water collection pipes 81 are connected to the water production main pipe 41 through a water production hose 42. A water production pump 43 is also installed on the box body 1, and the water inlet of the water production pump 43 is connected to one end of the water production main pipe 41.

[0055] like Figure 1-Figure 6 As shown, an MBR membrane device provided by the present invention, in this embodiment, the reciprocating drive mechanism includes a drive rod 6 rotatably mounted on the housing 1, and a drive assembly 9 is arranged between each of the MBR membrane components 8 and the drive rod 6. When the drive rod 6 rotates, the drive assembly 9 is used to drive the MBR membrane components 8 to reciprocate;

[0056] The reciprocating drive mechanism further includes a power assembly 5 , which is mounted on the housing 1 , and an output end of the power assembly 5 is connected to one end of a driving rod 6 , and the power assembly 5 is used to drive the driving rod 6 to rotate continuously.

[0057] like Figure 1-Figure 6 As shown, an MBR membrane device provided by the present invention, in this embodiment, the driving assembly 9 includes a guide groove, the guide groove is arranged on the driving rod 6, the guide groove includes a thread groove 91 and a straight groove 92, the thread groove 91 and the straight groove 92 are connected to each other at the head and tail, and the MBR membrane assembly 8 is installed with a driving ring 94, the driving ring 94 is sleeved on the driving rod 6, the inner side of the driving ring 94 is fixedly connected to a limiting column 95, and the limiting column 95 is slidably installed in the guide groove;

[0058] The threaded groove 91 can drive the limiting column 95 forward. When the limiting column 95 moves into the straight groove 92, a tension spring 11 is connected between the guide rod 10 and the MBR membrane assembly 8 to enable the MBR membrane assembly 8 to retreat.

[0059] When the driving rod 6 rotates, the limiting column 95 will be blocked by the bevel of the threaded groove 91, and the threaded groove 91 can drive the MBR membrane assembly 8 to move linearly through the limiting column 95 and the driving ring 94. When the limiting column 95 moves into the straight groove 92, under the pull of the tension spring 11, the limiting column 95 and the MBR membrane assembly 8 quickly retreat along the straight groove 92, so that the limiting column 95 returns to the interface between the threaded groove 91 and the straight groove 92 again, and then the driving rod 6 drives the limiting column 95 to move through the threaded groove 91, so that the MBR membrane assembly 8 can move back and forth in a cycle.

[0060] like Figure 1-Figure 6 As shown, an MBR membrane device provided by the present invention, when the tension spring 11 pulls the MBR membrane assembly 8 back, the driving rod 6 will continue to move. Since it takes a certain amount of time for the MBR membrane assembly 8 to return, during this time, the limit column 95 will be rotated by the driving rod 6 to a certain angle. When the driving ring 94 is fixedly mounted on the MBR membrane assembly 8, the limit column 95 will block the rotation of the driving rod 6, which may cause damage to the power assembly 5. Therefore, in this embodiment, the driving ring 94 is rotatably mounted on the MBR membrane assembly 8, and the driving assembly 9 also includes a micro-motion structure, which includes an arc groove 96 opened on the MBR membrane assembly 8, and the driving ring 94 is fixedly connected to a limit stop 93 on the side of the arc groove 96, and a second compression spring 97 is connected between the limit stop 93 and the side wall of the arc groove 96.

[0061] After the limiting column 95 moves into the straight groove 92, the driving rod 6 drives the limiting column 95 and the driving ring 94 to rotate through the straight groove 92. The arc groove 96 will leave space for the driving ring 94 to rotate, and the second compression spring 97 will be compressed to avoid the device from getting stuck and the power component 5 from being damaged. When the limiting column 95 returns to the intersection of the threaded groove 91 and the straight groove 92, the second compression spring 97 returns to its initial state, and then the threaded groove 91 will drive the limiting column 95 and the driving ring 94 to move.

[0062] like Figure 1-Figure 2 As shown, an MBR membrane device provided by the present invention, in this embodiment, the power assembly 5 includes an electric motor 52 fixedly mounted on the housing 1, and a transmission pair 51 is connected between the electric motor 52 and one end of the driving rod 6, and the transmission pair 51 is one of a gear pair, a sprocket pair or a belt pair.

[0063] like Figure 1-Figure 2 and Figure 7-11As shown, an MBR membrane device provided by the present invention, in this embodiment, an aeration assembly 3 is also installed on the box body 1, and the aeration assembly 3 includes an aeration pipe 34 fixedly installed inside the box body 1, and one end of a plurality of the MBR membrane assemblies 8 are slidably installed on the aeration pipe 34, and an air pump 37 is fixedly installed on the box body 1, and the air outlet of the air pump 37 is connected to one end of the aeration pipe 34;

[0064] In order to improve the aeration effect, a plurality of movable nozzle assemblies 35 are installed on the aeration pipe 34, and all the movable nozzle assemblies 35 are connected to the aeration pipe 34. When the MBR membrane assembly 8 moves, the MBR membrane assembly 8 will adjust the angle of the output end of the movable nozzle assembly 35, so that the aeration direction changes, so that the aeration direction can follow the movement of the MBR membrane assembly 8, so that the air can fully contact the MBR membrane assembly 8, thereby improving the aeration effect.

[0065] like Figure 1-Figure 2 and Figure 7-11 As shown, an MBR membrane device provided by the present invention, in this embodiment, the movable nozzle assembly 35 includes a spherical block 352 rotatably mounted on the aeration pipe 34, a water spray pipe 351 is slidably mounted on the spherical block 352, a fifth compression spring 353 is connected between the water spray pipe 351 and the spherical block 352, and a vent hole 354 is opened at one end of the spherical block 352 located inside the aeration pipe 34, and the vent hole 354 is used to communicate with the water spray pipe 351;

[0066] In order to allow the water spray pipe 351 to smoothly pass over the MBR membrane assembly 8 , a groove 38 is provided at the top of the aeration pipe 34 .

[0067] like Figure 1-Figure 2 and Figure 7-11 As shown, an MBR membrane device provided by the present invention is provided. In order to flush the MBR membrane assembly 8, in this embodiment, the aeration assembly 3 further includes a flushing water pump 32 fixedly mounted on the housing 1, and the water outlet of the flushing water pump 32 is connected to one end of the aeration pipe 34;

[0068] The water inlet of the flushing water pump 32 is connected to an external water source. The water drawn by the flushing water pump 32 flows into the aeration pipe 34 and then sprayed out from the spray pipe 351 to flush the MBR membrane assembly 8.

[0069] When the air pump 37 is used for aeration, in order to avoid air leakage from the flushing water pump 32 and thus reduce the aeration efficiency, a water seal valve 33 is provided at one end of the aeration pipe 34 near the flushing water pump 32. When the flushing water pump 32 is used to flush the MBR membrane assembly 8, in order to avoid water leakage from the air pump 37, an air seal valve 36 is provided at one end of the aeration pipe 34 near the air pump 37. When the air pump 37 is started, the water seal valve 33 is used to isolate the aeration pipe 34 and the flushing water pump 32. When the flushing water pump 32 is started, the air seal valve 36 is used to isolate the aeration pipe 34 and the air pump 37.

[0070] like Figure 7-11 As shown, it is an MBR membrane device provided by the present invention. In this embodiment, the water seal valve 33 includes a first fixed valve body 336 that penetrates and is fixed on the aeration pipe 34. The first fixed valve body 336 is located on the side of the aeration pipe 34 and is provided with a first communication hole 334 that is connected to the aeration pipe 34. A first valve block 332 is slidably installed inside the first fixed valve body 336. A third compression spring 335 is connected between the first valve block 332 and the bottom of the first fixed valve body 336. A water channel 333 is provided on the side of the first valve block 332. Initially (the third compression spring 335 is in a natural state, and there is no sewage inside the box 1), the water channel 333 is connected to the first communication hole 334, and the top of the first valve block 332 is fixedly connected with a first pressure plate 331.

[0071] The air sealing valve 36 includes a second fixed valve body 366 that passes through and is fixed on the aeration pipe 34. The second fixed valve body 366 is located on the side of the aeration pipe 34 and is provided with a second connecting hole 364 that is connected to the aeration pipe 34. An air passage 363 is slidably installed inside the second fixed valve body 366. A fourth compression spring 365 is connected between the air passage 363 and the bottom of the second fixed valve body 366. A second valve block 362 is provided on the side of the air passage 363. Initially (the fourth compression spring 365 is in a natural state, and there is no sewage inside the box 1), the second valve block 362 is not connected to the second connecting hole 364, and the second valve block 362 is located above the second connecting hole 364. The top of the air passage 363 is fixedly connected to a second pressure plate 361.

[0072] When sewage is not introduced into the interior of the housing 1, the third compression spring 335 and the fourth compression spring 365 are both in a natural state. At this time, the water channel 333 is connected to the first connecting hole 334, and the second valve block 362 is not connected to the second connecting hole 364. The flushing water pump 32 can be used to flush the MBR membrane assembly 8. After sewage is introduced into the housing 1, the larger water pressure will force the first pressure plate 331 and the second pressure plate 361 to descend. The first pressure plate 331 and the second pressure plate 361 respectively drive the first valve block 332 and the air channel 363 to descend, thereby connecting the second valve block 362 and the second connecting hole 364, and disconnecting the water channel 333 and the first connecting hole 334. At this time, the air pump 37 can be used to aerate the MBR membrane assembly 8, and the aeration pipe 34 can be used not only as an aeration pipe 34, but also as a cleaning pipe, which saves the layout space in the housing 1 and reduces the cost.

[0073] like Figure 2-Figure 3 and Figure 8-Figure 10 As shown, an MBR membrane device provided by the present invention, when the MBR membrane assembly 8 is long, it is difficult for the water sprayed from the water spray pipe 351 to flush the top of the MBR membrane assembly 8. Therefore, in this embodiment, the guide rod 10 adopts a hollow tube, and the water outlet of the flushing water pump 32 is connected to one end of the guide rod 10 through the upper branch pipe 31, and a plurality of upper water spray holes 39 are opened on the guide rod 10.

[0074] When the MBR membrane assembly 8 moves, the MBR membrane assembly 8 will first push the water spray pipe 351 to rotate. When the water spray pipe 351 is blocked by the aeration pipe 34, the MBR membrane assembly 8 will squeeze the water spray pipe 351 to retract the water spray pipe 351 into the spherical block 352, and then the MBR membrane assembly 8 will pass over the water spray pipe 351.

[0075] During this process, the MBR membrane assembly 8 will temporarily block the water spray pipe 351, which will increase the water pressure in the aeration pipe 34 and the guide rod 10, so that the water can be sprayed out of the guide rod 10 more quickly, increasing the impact force of the water and improving the flushing effect. In addition, in the process of the MBR membrane assembly 8 crossing the water spray pipe 351, the MBR membrane assembly 8 gradually blocks the water spray pipe 351, and in the process of the MBR membrane assembly 8 covering the water spray pipe 351, the water pressure in the aeration pipe 34 also gradually increases, and the impact force of the water flow sprayed from the uncovered part of the water spray pipe 351 will also increase, thereby improving the flushing effect.

[0076] like Figure 7 and Figure 10-13As shown, an MBR membrane device provided by the present invention, during the time period when the MBR membrane assembly 8 passes over the water spray pipe 351, the MBR membrane assembly 8 will temporarily block the outlet of the water spray pipe 351, thereby temporarily increasing the water pressure in the aeration pipe 34. In order to avoid the increased water pressure from damaging the flushing water pump 32, in this embodiment, a pressure relief cleaning mechanism 7 is also installed inside the box body 1, and the pressure relief cleaning mechanism 7 includes a fixing frame 72 fixedly connected to the MBR membrane assembly 8, and a pressure relief main pipe 73 is fixedly connected to the bottom of the fixing frame 72. One end of the pressure relief main pipe 73 is connected to the aeration pipe 34 through a pressure relief hose 71, and a plurality of pressure relief cleaning components are installed at the bottom of the pressure relief main pipe 73, and the pressure relief cleaning component includes a fixing cylinder 74 fixedly connected to the pressure relief main pipe 73, and the interior of the fixing cylinder 74 is connected to the pressure relief main pipe 73. The interior of the fixed cylinder 74 is slidably connected to a piston plate 79, a first compression spring 711 is connected between the piston plate 79 and the bottom of the fixed cylinder 74, a movable rod 76 is fixedly connected to the bottom of the piston plate 79, one end of the movable rod 76 extending out of the fixed cylinder 74 is fixedly connected to a brush plate 77, a plurality of bristles 78 are provided at the bottom of the brush plate 77, a water sleeve 75 is sleeved on the outer side surface of the fixed cylinder 74, a plurality of water holes 712 connected to the water sleeve 75 are provided on the side wall of the fixed cylinder 74, initially (when the water pressure in the aeration pipe 34 is not increased), the water holes 712 are located below the piston plate 79, the movable rod 76 and the brush plate 77 are both hollow structures, a water inlet hole 710 connected to the interior of the fixed cylinder 74 is provided on the side of the movable rod 76, and a plurality of lower water spray holes 713 are provided at the bottom of the brush plate 77.

[0077] After the water pressure in the aeration pipe 34 increases, the excess water in the aeration pipe 34 will flow into the pressure relief main pipe 73 through the pressure relief hose 71, and the water in the pressure relief main pipe 73 will be diverted to multiple fixed cylinders 74, and the water will push the piston plate 79 down. The piston plate 79 drives the brush plate 77 and the bristles 78 to descend through the movable rod 76, and the bristles 78 are brought into contact with the bottom of the box body 1. When the piston plate 79 descends to the bottom of the water hole 712, the water in the fixed cylinder 74 will enter the water sleeve 75 through the water hole 712. The water in the water sleeve 75 enters the space below the piston plate 79 in the fixed cylinder 74 from the water hole 712, and then the water in the fixed cylinder 74 enters the movable rod 76 and the brush plate 77 through the water inlet hole 710, and finally sprays out from the lower water spray hole 713. The lower water spray hole 713 will flush the bottom of the box body 1 with water to loosen the sediment, and then the MBR membrane assembly 8 drives the pressure relief main pipe 73 and the brush 78 through the fixed frame 72 to clean the bottom of the box body 1, so that the sediment is discharged from the sewage pipe 2.

[0078] Working principle:

[0079] When producing water, sewage is introduced into the box body 1 through the water inlet pipe, and the sewage is overflowed over the MBR membrane assembly 8, and then the water production pump 43, the motor 52 and the air pump 37 are started, and the water production pump 43 extracts water in the MBR membrane assembly 8 through the water production main pipe 41 and the water production hose 42, and the sewage enters the MBR membrane body 83, and then the MBR membrane body 83 filters the sewage. At the same time, the motor 52 drives the driving rod 6 to rotate through the transmission pair 51, and the driving rod 6 drives the MBR membrane assembly 8 to reciprocate through the driving assembly 9, so that the MBR membrane assembly 8 and the sewage are mutually flushed, the number of impurities attached to the MBR membrane assembly 8 is reduced, and the blockage rate of the MBR membrane assembly 8 is reduced. The air pump 37 also aerates the box body 1 through the aeration pipe 34;

[0080] When cleaning the MBR membrane assembly 8, after the MBR membrane assembly 8 is blocked, the sewage in the box body 1 is discharged through the sewage pipe 2, and then the flushing water pump 32 and the motor 52 are started. The flushing water pump 32 introduces clean water into the aeration pipe 34 and the guide rod 10. The aeration pipe 34 and the guide rod 10 will spray clean water onto the surface of the MBR membrane assembly 8, so that impurities on the surface of the MBR membrane assembly 8 can be washed away. The motor 52 will also drive the MBR membrane assembly 8 to reciprocate. When the MBR membrane assembly 8 returns quickly, the limit column 95 will hit the edge of the threaded groove 91. Under the action of inertia, the impurities on the surface of the MBR membrane assembly 8 will be vibrated, thereby improving the cleaning effect.

[0081] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0082] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An MBR membrane device, comprising a box body, on which a water inlet pipe and a sewage discharge pipe are arranged, characterized in that: A guide rod is fixedly installed inside the box, and a plurality of MBR membrane assemblies are slidably installed on the guide rod; A water production component is installed on the box body, and a plurality of the MBR membrane components are connected to the input end of the water production component, and the water production component is used to extract water from the inside of the MBR membrane component; The box body is also equipped with a reciprocating drive mechanism, which is connected to a plurality of MBR membrane assemblies in a transmission manner, and is used to drive all the MBR membrane assemblies to perform variable speed reciprocating motion; The reciprocating drive mechanism includes a drive rod rotatably mounted on the box body, and a drive assembly is arranged between each of the MBR membrane modules and the drive rod. When the drive rod rotates, the drive assembly is used to drive the MBR membrane module to reciprocate; The reciprocating drive mechanism also includes a power assembly; The driving assembly includes a guide groove, which is arranged on the driving rod. The guide groove includes a threaded groove and a straight groove, and the threaded groove and the straight groove are connected to each other at their ends. A driving ring is installed on the MBR membrane assembly, and the driving ring is sleeved on the driving rod. The inner side of the driving ring is fixedly connected to a limiting column, and the limiting column is slidably installed in the guide groove; A tension spring is connected between the guide rod and the MBR membrane assembly; The drive ring is rotatably mounted on the MBR membrane assembly. The drive assembly also includes a micro-motion structure, which includes an arc-shaped groove opened on the MBR membrane assembly. The drive ring is fixedly connected to a limit stop near the side of the arc-shaped groove, and a second compression spring is connected between the limit stop and the side wall of the arc-shaped groove.

2. The MBR membrane device according to claim 1, characterized in that: The box body is also equipped with an aeration assembly, which includes an aeration pipe fixedly installed inside the box body, one end of each of the MBR membrane assemblies is slidably installed on the aeration pipe, and an air pump is fixedly installed on the box body, and the air outlet of the air pump is connected to one end of the aeration pipe; A plurality of movable nozzle assemblies are installed on the aeration pipe, and all the movable nozzle assemblies are connected to the aeration pipe.

3. The MBR membrane device according to claim 2, characterized in that: The movable nozzle assembly comprises a spherical block rotatably mounted on the aeration pipe, a water spray pipe is slidably mounted on the spherical block, a fifth compression spring is connected between the water spray pipe and the spherical block, and a vent hole connected to the water spray pipe is opened at one end of the spherical block located inside the aeration pipe; A groove is formed on the top of the aeration pipe.

4. The MBR membrane device according to claim 2, characterized in that: The aeration assembly further comprises a flushing water pump fixedly mounted on the box body, and a water outlet of the flushing water pump is connected to one end of the aeration pipe; A water seal valve is arranged at one end of the aeration pipe close to the flushing water pump, and an air seal valve is arranged at one end of the aeration pipe close to the air pump. The water seal valve is used to separate the aeration pipe from the flushing water pump, and the air seal valve is used to separate the aeration pipe from the air pump.

5. The MBR membrane device according to claim 4, characterized in that: The water seal valve comprises a first fixed valve body penetrating through and fixed on the aeration pipe, a first communication hole communicating with the aeration pipe is provided on a side of the first fixed valve body located inside the aeration pipe, a first valve block is slidably mounted inside the first fixed valve body, a third compression spring is connected between the first valve block and the bottom of the first fixed valve body, a water channel is provided on the side of the first valve block, initially, the water channel is communicated with the first communication hole, and a first pressure plate is fixedly connected to the top of the first valve block; The air sealing valve includes a second fixed valve body that passes through and is fixed on the aeration pipe, a second connecting hole that is connected to the aeration pipe is provided on the side of the second fixed valve body located inside the aeration pipe, an air passage is slidably installed inside the second fixed valve body, a fourth compression spring is connected between the air passage and the bottom of the second fixed valve body, a second valve block is provided on the side of the air passage, initially, the second valve block is not connected with the second connecting hole, and the second valve block is located above the second connecting hole, and a second pressure plate is fixedly connected to the top of the air passage.

6. The MBR membrane device according to claim 4, characterized in that: The guide rod is a hollow tube, the water outlet of the flushing water pump is connected with one end of the guide rod through an upper branch pipe, and a plurality of upper water spray holes are opened on the guide rod.

7. The MBR membrane device according to claim 4, characterized in that: The box body is also provided with a pressure relief cleaning mechanism, which includes a fixing frame fixedly connected to the MBR membrane assembly, a pressure relief main pipe fixedly connected to the bottom of the fixing frame, one end of the pressure relief main pipe is connected to the aeration pipe through a pressure relief hose, and a plurality of pressure relief cleaning components are installed at the bottom of the pressure relief main pipe, and the pressure relief cleaning components include a fixing cylinder fixedly connected to the pressure relief main pipe, the interior of the fixing cylinder is connected to the pressure relief main pipe, a piston plate is slidably connected to the interior of the fixing cylinder, and a connection is made between the piston plate and the bottom of the fixing cylinder. There is a first compression spring, and a movable rod is fixedly connected to the bottom of the piston plate. One end of the movable rod extending out of the fixed cylinder is fixedly connected to a brush plate, and a plurality of bristles are arranged at the bottom of the brush plate. A water sleeve is sleeved on the outer side surface of the fixed cylinder, and a plurality of water holes connected with the water sleeve are opened on the side wall of the fixed cylinder. Initially, the water hole is located below the piston plate, and the movable rod and the brush plate are both hollow structures. A water inlet hole connected with the interior of the fixed cylinder is opened on the side of the movable rod, and a plurality of lower water spray holes are opened at the bottom of the brush plate.

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