A high-precision pretreatment device for biological processes

Abstract

The application discloses a kind of biological bimodal method process high-precision pretreatment device, comprising: processing device main body, processing device main body includes biochemical department, macromolecular organic matter removal device, filter part, biochemical department, macromolecular organic matter removal device, filter part are sequentially communicated, when using the processing device main body, wastewater is sent to biochemical department and is carried out biochemical treatment, then is sent to macromolecular organic matter removal device and removes macromolecular organic matter, finally wastewater is exported to filter part and is carried out ultrafine filtration treatment, filter part has ultrafiltration membrane, RO membrane, and the filtration precision can be effectively improved by ultrafiltration membrane, RO membrane. By the setting of macromolecular organic matter removal device, macromolecular organic matter can be removed preferentially, so that the existing process is optimized to make the ultrafiltration water SDI value less than 5, and the service life of ultrafiltration membrane is increased by 2-3 times, RO membrane water filtration can provide 2-5%, a series of parameter optimization, user use cost is greatly reduced, and wastewater is reduced after chemical cleaning.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment equipment technology, and more specifically, to a high-precision pretreatment device using biological processes. Background Technology

[0002] With rapid economic development, my country's water resources and environment have suffered severe pollution and damage, posing a significant threat to our health and survival. Researching measures to improve water environment issues is of great significance for protecting the human environment and implementing sustainable development. Currently, there are various wastewater treatment technologies in China, but the most basic principle relies on the action of microorganisms to remove pollutants from water, mainly including traditional biofilm methods and activated sludge processes.

[0003] In wastewater treatment, the biofilm method is highly resistant to shock loads, but has a long retention time and high cost; the activated sludge method has a shorter retention time than the biofilm method, but its cost is higher when the influent COD is low. cr When the concentration is low, a certain amount of carbon source needs to be added to maintain the sludge concentration in the system. Currently, the treatment of decentralized domestic sewage in rural areas mostly adopts pure biofilm methods or derivative methods such as activated sludge. These methods can only be applied to a single influent water quality. If a pure biofilm method is used, the effluent may not meet the standards when the oil concentration in the water is high. Therefore, it is necessary to propose a high-precision pretreatment device using biological processes to at least partially solve the problems existing in the current technology. Summary of the Invention

[0004] The summary section introduces a series of simplified concepts, which will be further explained in detail in the detailed description section. The summary section of this invention is not intended to limit the key features and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0005] To at least partially solve the above problems, the present invention provides a high-precision pretreatment device for bioprocessing, comprising: a treatment device body, the treatment device body including a biochemical section, a macromolecular organic matter removal device, and a macromolecular product interception section, wherein the biochemical section, the macromolecular organic matter removal device, and the filtration section are connected in sequence, and wherein the filtration section is equipped with an ultrafiltration membrane and an RO membrane.

[0006] According to an embodiment of the present invention, the high-precision pretreatment device for bioprocessing includes a removal chamber, wherein a first macromolecular product interception net and a second macromolecular product interception net are disposed inside the removal chamber, and the removal chamber has an inner guide surface with a slope, wherein the inflow end of the removal chamber is located at the high end of the inner guide surface with the slope, and the outflow end of the removal chamber is located at the low end of the inner guide surface with the slope.

[0007] According to the biological process high-precision pretreatment device, the water inlet end of the biochemical part is provided with an outer water inlet pipe, and the outer water inlet pipe is provided with an online metering detection mechanism.

[0008] According to the biological process high-precision pretreatment device, the online metering detection mechanism comprises a metering detection pipe, a metering detection module and a metering detection seat, the metering detection pipe is arranged in the outer water inlet pipe, the metering detection seat is arranged on the outer water inlet pipe, and the metering detection module is arranged on the metering detection seat and connected with the metering detection pipe through a metering detection sensor module.

[0009] According to the biological process high-precision pretreatment device, the metering detection seat comprises a seat plate and two support pieces, the two support pieces are arranged on the outer water inlet pipe on the two sides of the metering detection pipe respectively, the support piece comprises a first U-shaped block and a second U-shaped block, the first U-shaped block and the second U-shaped block are symmetrically arranged on the outer water inlet pipe, the first U-shaped block is provided with a stud and two vertical guide columns, the seat plate is arranged on the stud and the two vertical guide columns, and the metering detection module is arranged on the seat plate.

[0010] According to the biological process high-precision pretreatment device, the metering detection sensor module comprises a sensor body, an upper sleeve and a lower sleeve, the upper sleeve is arranged at the bottom of the seat plate, the lower sleeve is arranged on the metering detection pipe, the upper sleeve is partially arranged on the lower sleeve, the sensor body passes through the upper sleeve and the lower sleeve and extends into the metering detection pipe, and the sensor body is connected with the metering detection module.

[0011] According to the biological process high-precision pretreatment device, the upper sleeve comprises an upper fixing cylinder, an upper blocking seat and an upper sleeve body, the upper fixing cylinder is arranged at the bottom of the seat plate, the upper blocking seat is arranged at the bottom of the upper fixing cylinder, the upper sleeve body is arranged at the bottom of the upper blocking seat, the upper sleeve body is arranged on the lower sleeve, two inner clamping pieces are arranged in the upper sleeve body, and the inner clamping pieces are used for fixing the lower sleeve.

[0012] According to the biological process high-precision pretreatment device, the inner wall of the upper sleeve body is provided with two opposite first inner receiving grooves, the outer wall is provided with two vertical sliding grooves, the first inner receiving grooves and the vertical sliding grooves are connected with each other, and the inner clamping piece comprises an inner rotating rod, a sliding ring and an inner driving rod.

[0013] Compared with the prior art, the present application has at least the following beneficial effects:

[0014] The application provides a biological process high-precision pretreatment device, which comprises a treatment device main body, the treatment device main body comprises a biochemical part, a macromolecular organic matter removal device and a filtering part, wherein the biochemical part, the macromolecular organic matter removal device and the filtering part are sequentially communicated, so that sewage is conveyed into the biochemical part for biochemical treatment, then conveyed into the macromolecular organic matter removal device for removing macromolecular organic matters, and finally output into the filtering part for super-filtration treatment, wherein the filtering part is provided with ultrafiltration membranes and RO membranes, and the filtering precision can be effectively improved through the ultrafiltration membranes and the RO membranes. Through the arrangement of the macromolecular organic matter removal device in the above structure, macromolecular organic matters can be preferentially removed, so that the SDI value of the ultrafiltrated water can be less than 5, the concentration can be less than 1 muM, the service life of the ultrafiltration membrane is increased by 2-3 times, the chemical cleaning frequency is reduced by more than 90%, the RO membrane water production filter can provide 2-5%, and a series of parameter optimization can greatly reduce the use cost of users, and the wastewater after chemical cleaning is reduced.

[0015] The biological process high-precision pretreatment device, other advantages, objects and characteristics of the application will be embodied by the following description, and will be understood by those skilled in the art through research and practice of the application. BRIEF DESCRIPTION OF DRAWINGS

[0016] The accompanying drawings are included to provide a further understanding of the application, and constitute a part of the specification, which together with the embodiments of the application, are used to explain the application, and do not constitute a limitation to the application. In the drawings:

[0017] Figure 1 It is a structural schematic diagram of the application.

[0018] Figure 2 It is a structural schematic diagram of the macromolecular organic matter removal device in the application.

[0019] Figure 3 It is a structural schematic diagram of the online metering detection mechanism in the application Figure 1 .

[0020] Figure 4 It is a structural schematic diagram of the online metering detection mechanism in the application Figure 2 .

[0021] Figure 5 It is a structural schematic diagram of the metering detection sensor module in the application.

[0022] Figure 6 It is a structural schematic diagram of the metering detection sensor module in the application Figure 1 .

[0023] Figure 7Internal structure diagram of the metering detection sensor module in the application Figure 2 .

[0024] Figure 8 Partial structure diagram of the lower kit in the application

[0025] Figure 9 Partial structure diagram of the inner shielding assembly in the application Figure 1 .

[0026] Figure 10 Partial structure diagram of the inner shielding assembly in the application Figure 2 .

[0027] Figure 11 Partial structure diagram of the inner shielding assembly in the application Figure 3 .

[0028] Figure 12 Partial structure diagram of the inner shielding assembly in the application Figure 4 . DETAILED DESCRIPTION

[0029] The application will be further described in detail below with reference to the accompanying drawings and examples, so that those skilled in the art can implement the application according to the description.

[0030] It should be understood that the terms such as "have", "contain" and "include" used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0031] As shown in Figures 1-4 , the application provides a biological process high-precision pretreatment device, which comprises a treatment device main body 100, the treatment device main body 100 comprising a biochemical part 1, a macromolecular organic matter removal device 2 and a filtering part 3, wherein the biochemical part 1, the macromolecular organic matter removal device 2 and the filtering part 3 are sequentially communicated, so that when the treatment device main body 100 is used, sewage is transported into the biochemical part 1 for biochemical treatment, then transported into the macromolecular organic matter removal device 2 for removal of macromolecular organic matter, and finally output to the filtering part 3 for superfine filtration treatment, wherein the filtering part 3 has ultrafiltration membranes and RO membranes, and the filtration precision can be effectively improved by the ultrafiltration membranes and the RO membranes. By the provision of the macromolecular organic matter removal device 2 in the above structure, macromolecular organic matter can be removed preferentially, so that after optimization of the existing process, the ultrafiltration water SDI value can be less than 5, the concentration can be less than 1 μM, the service life of the ultrafiltration membrane is increased by 2-3 times, the chemical cleaning frequency is reduced by more than 90%, the RO membrane water production filter can provide 2-5%, and after a series of parameter optimization, the user's use cost is greatly reduced, and the wastewater after chemical cleaning is reduced.

[0032] Exemplary macromolecular organic matter removal device

[0033] Further, some embodiments of the present application provide a specific structure of the above-mentioned macromolecular organic matter removal device 2, where the structure of the macromolecular organic matter removal device 2 includes a removal tank 21, and specifically, the first macromolecular product interception net 22 and the second macromolecular product interception net 23 are installed in the removal tank 21, and the removal tank 21 has an inner slope guide surface 211, the inflow end of the removal tank 21 is located at the high end of the inner slope guide surface 211, and the outflow end of the removal tank 21 is located at the low end of the inner slope guide surface 211, so that when the sewage treated by the biochemical part 1 enters the removal tank 21, it reacts with the treatment liquid in the removal tank 21, thereby effectively settling the macromolecular organic matter, and the first macromolecular product interception net 22 and the second macromolecular product interception net 23 intercept the settled product, and the sewage continues to enter the filtration part 3 for further macromolecular product interception treatment.

[0034] The water inlet end of the biochemical part 1 is provided with an external water inlet pipe 11, and the online metering detection mechanism 4 is installed on the external water inlet pipe 11, and the online metering detection mechanism 4 is electrically connected with the controller, and the biochemical part 1, the macromolecular organic matter removal device 2, and the filtration part 3 are also electrically connected with the controller, so that the online metering detection mechanism 4 can perform preliminary quality detection on the sewage, and then the controller controls the biochemical part 1, the macromolecular organic matter removal device 2, and the filtration part 3 to better achieve the treatment of the sewage. Through the design of the above structure, the entire biological process high-precision pretreatment device can automatically judge and identify water quality changes and various operating parameters, and automatically make optimization adjustment operation to realize unattended operation.

[0035] Exemplary online metering detection mechanism

[0036] As Figures 3-4 Further, some embodiments of the present application provide a specific structure of the above-mentioned online metering detection mechanism 4, where the structure of the online metering detection mechanism 4 includes a metering detection pipe 41, a metering detection module 42, and a metering detection seat 43, where the metering detection pipe 41 is installed in the external water inlet pipe 36, the metering detection seat 43 is also installed on the external water inlet pipe 36, the metering detection module 42 is installed on the metering detection seat 43 and connected with the metering detection pipe 41 through a metering detection sensor module 44, and the metering detection module 42 is electrically connected with the controller, where the metering detection seat 43 provides a mounting position for the metering detection module 42, and the metering detection module 42 detects the value of the sewage through the metering detection sensor module 44.

[0037] Exemplary metering detection seat

[0038] Further, some embodiments of the present application provide the specific structure of the metering detection seat 43, wherein the metering detection seat 43 comprises a seat plate 431 and two support members 432, the two support members 432 are respectively installed on the outer water inlet pipe 36 on both sides of the metering detection pipe 41, and the support member 432 comprises a first U-shaped block 433 and a second U-shaped block 434, the first U-shaped block 433 and the second U-shaped block 434 are symmetrically installed on the upper and lower sides of the outer water inlet pipe 36 and connected by a bolt fastener 437, a threaded stud 435 and two vertical guide columns 436 are further installed on the first U-shaped block 433, and the seat plate 431 is installed on the threaded stud 435 and the two vertical guide columns 436, wherein the threaded stud 435 has upper and lower screw blocks 437 to fix the seat plate 431, and the vertical guide columns 436 facilitate the installation of the seat plate 431, which greatly facilitates use.

[0039] Exemplary metering detection sensor module

[0040] As Figures 5-12 Further, some embodiments of the present application provide the specific structure of the metering detection sensor module 44, wherein the metering detection sensor module 44 comprises a sensor body 45, an upper sleeve 46 and a lower sleeve 47, the upper sleeve 46 is installed on the bottom of the seat plate 431, the lower sleeve 47 is installed on the metering detection pipe 41, the upper sleeve 46 is partially installed on the lower sleeve 47, the sensor body 45 is connected with the metering detection module 42 and extends into the metering detection pipe 41 through the upper sleeve 46 and the lower sleeve 47, so that the metering detection module 42 can detect sewage through the sensor body 45. The upper sleeve 46 and the lower sleeve 47 can protect the sensor body 45 from accidental damage, and facilitate assembly. When the metering detection module 42 and the sensor body 45 are removed for maintenance, the lower sleeve 47 can prevent sewage in the metering detection pipe 41 from overflowing, which further facilitates use.

[0041] Exemplary upper sleeve

[0042] As Figures 6-7As shown, further, some embodiments of the present invention provide a specific structure of the upper kit 46, which includes an upper fixed cylinder 461, an upper stop 462, and an upper sleeve body 463. The upper fixed cylinder 461 is installed at the bottom of the base plate 431, the upper stop 462 is installed at the bottom of the upper fixed cylinder 461, the upper sleeve body 463 is installed at the bottom of the upper stop 462, and the upper sleeve body 463 is installed on the lower kit 47. Two inner clamps are installed inside the upper sleeve body 463. These two inner clamps are used to fix the lower kit 47, thereby enabling the assembly between the upper kit 46 and the lower kit 47 and improving installation efficiency.

[0043] Furthermore, two opposing first inner grooves 464 are formed on the inner wall of the upper sleeve 463, and two vertical sliding grooves 465 are formed on its outer wall. The first inner grooves 464 and the vertical sliding grooves 465 are interconnected. The aforementioned inner clamping component includes an inner rotating rod 466, a sliding ring 467, and an inner driving rod 468. The inner rotating rod 466 is rotatably mounted in the first inner groove 464 via an inner shaft 4661. The sliding ring 467 is slidably mounted on the outer wall of the upper sleeve 463. The vertical sliding groove 465 also has an inner driving rod 468 connected to the sliding ring 467. Therefore, when the sliding ring 467 is moved upward, it drives the inner driving rod 468 to move upward along the vertical sliding groove 465, thereby pushing and driving the inner rotating rod 466 to rotate into the inner clamping groove 470 of the lower assembly 47. This realizes the assembly between the upper assembly 46 and the lower assembly 47, improving installation efficiency.

[0044] Exemplary Subset

[0045] like Figures 7-8 As shown, further, some embodiments of the present invention provide a specific structure of the lower assembly 47 described above. This lower assembly 47 includes a lower fixed cylinder 471, a lower stop 472, and a lower sleeve body 473. Here, the lower fixed cylinder 471 is mounted on the metering and detection tube 41, while the lower stop 472 is mounted on the upper end of the lower fixed cylinder 471. The lower sleeve body 473 is mounted on the upper end of the lower stop 472. To fix it to the upper sleeve body 463 described above, the lower sleeve body 463... Two opposing second inner grooves 474 are provided on the outer wall of 73. An inner compression spring 475 and an outer push block 476 are installed in the second inner grooves 474. The inner compression spring 475 is located inside the outer push block 476 and abuts against the outer push block 476, so that the outer push block 476 also abuts against the inner rotating rod 466 and cooperates with the aforementioned inner drive rod 468. This causes the upper and lower ends of the inner rotating rod 466 to cooperate, so that the inner rotating rod 466 can fix the lower sleeve body 473 inside.

[0046] When it is needed to open the lower sleeve body 473, the sliding ring 467 can be moved downwards, the sliding ring 467 drives the inner driving rod 468 to move downwards along the vertical sliding groove 465, then the inner driving rod 468 pushes the lower end of the inner rotating rod 466 inwards, and then the inner rotating rod 466 pushes the outer pushing block 476 to the second inner collecting groove 474, and then the upper end of the inner rotating rod 466 is rotated from the inner clamping groove 470 to the first inner collecting groove 464, and then the upper sleeve 46 can be pulled outwards from the lower sleeve 47 to realize efficient disassembly.

[0047] As shown in Figures 9-12 Further, the inner receiving cavity 477 is formed in the lower blocking seat 472, the inner receiving cavity 477 is communicated with the inner passage 4701, the inner passage 4701 can be installed in the inner receiving cavity 477 through the sensor body 45, and the inner blocking assembly 48 is installed in the inner receiving cavity 477, and the inner blocking assembly 48 is used to block the inside of the lower sleeve 47, so that when the sensor body 45 is removed for maintenance, the sewage in the metering detection tube 41 can be prevented from overflowing, and the use is more convenient.

[0048] The upper end surface of the lower blocking seat 472 is provided with two corresponding driving grooves 478, and the lower end of the upper sleeve body 463 is provided with corresponding driving vertical rods 469 corresponding to the driving grooves 478, so that when the driving vertical rods 469 enter the driving grooves 478, the inner blocking assembly 48 can be driven, so that the inner blocking assembly 48 is in an open state, and the sensor body 45 can pass through the upper sleeve 46 and the lower sleeve 47 and enter the metering detection tube 41, so that the metering detection module 42 can detect the sewage through the sensor body 45.

[0049] Exemplary inner blocking assembly

[0050] As shown in Figures 9-12 Further, some embodiments of the present application provide a specific structure of the inner blocking assembly 48, and the inner blocking assembly 48 of the structure comprises an inner rotating seat 481, an inner torsion ring 482, the inner rotating seat 481 is annular and located in the inner receiving cavity 477, the inner rotating seat 481 is provided with an inner track ring 483, the inner torsion ring 482 is installed on the inner rotating seat 481 and is arranged on the inner track ring 483, wherein the outer end of the inner torsion ring 482 is connected with the inner wall of the inner receiving cavity 477, the inner end of the inner torsion ring 482 is connected with the inner track ring 483, and the inner track ring 483 is provided with an inclined pushing groove 487.

[0051] Therefore, when the driving vertical rod 469 enters into the inner containing cavity 477, the driving vertical rod 469 abuts against the inclined pushing groove 487, and a resultant force is generated to make the inner track ring 483 rotate and make the inner torsion ring 482 rotate to gather, so that the inner rotating seat 481 is also driven to move, and the bottom of the inner rotating seat 481 is provided with an inner rail groove 484, the inner rail groove 484 is provided with an inner rail shaft 485, and the inner rail shaft 485 is provided with an inner shielding seat 486, so that the inner shielding seat 486 moves along the inner rail groove 484 through the inner rail shaft 485, and the two inner shielding seats 486 are away from each other, and then the inner passageway 4701 is in an unshielded state and can pass through the above-mentioned sensor body 45 to the metering and detecting pipe 41; when the metering and detecting module 42 and the sensor body 45 are removed for maintenance, the driving vertical rod 469 is away from the inclined pushing groove 487, and the inner rotating seat 481 is driven to rotate under the action of the inner torsion ring 482, and then the two inner shielding seats 486 are close to each other to shield the inner passageway 4701, so that the sewage in the metering and detecting pipe 41 is prevented from overflowing, and the use is more convenient. Further, the two inner shielding seats 486 can be connected to each other by magnetic attraction, and the sealing property can be improved.

[0052] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0053] In the present application, unless otherwise clearly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected or can communicate with each other; can be directly connected, or can be indirectly connected through an intermediate medium; can be the communication or interaction relationship between two elements, unless otherwise clearly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0054] While embodiments of the application have been disclosed in connection with the above specification and drawings this description is not intended to limit the scope of the application and many modifications, enhancements, alternatives, and variations will become apparent to those skilled in the art from this disclosure. Accordingly, it is intended that the application not be limited to the described embodiments, but that it include all variations falling within the scope of the claims, and their equivalents.

Claims

1. A high-precision pretreatment device for bioprocesses, characterized in that Include: Processing device body, biochemical department, macromolecular organic matter removal device, filter department, biochemical department, macromolecular organic matter removal device, filter department are communicated in proper order, wherein, the filter department is provided with ultrafiltration membrane, RO membrane; The water inlet end of the biochemical department is provided with an external water inlet pipe, and an online metering detection mechanism is arranged on the external water inlet pipe; The online metering detection mechanism comprises a metering detection pipe, a metering detection module and a metering detection seat, the metering detection pipe is arranged in the external water inlet pipe, the metering detection seat is arranged on the external water inlet pipe, and the metering detection module is arranged on the metering detection seat and connected with the metering detection pipe through a metering detection sensor module; The metering detection seat comprises a seat plate and two support pieces; The metering detection sensor module comprises a sensor body, an upper sleeve and a lower sleeve, the upper sleeve is arranged at the bottom of the seat plate, the lower sleeve is arranged on the metering detection pipe, the upper sleeve is partially arranged on the lower sleeve, the sensor body passes through the upper sleeve and the lower sleeve and extends into the metering detection pipe, and the sensor body is connected with the metering detection module; The upper sleeve comprises an upper fixed cylinder, an upper stop seat and an upper sleeve body, the upper sleeve body is arranged on the lower sleeve, two inner clamping pieces are arranged in the upper sleeve body, and the inner clamping pieces are used for fixing the lower sleeve; Opposite first inner grooves are arranged on the inner wall of the upper sleeve body, two vertical sliding grooves are arranged on the outer wall, the first inner grooves and the vertical sliding grooves are communicated with each other, the inner clamping piece comprises an inner rotating rod, a sliding ring and an inner driving rod, the inner rotating rod is arranged in the first inner groove, the sliding ring is arranged on the outer wall of the upper sleeve body, the inner driving rod connected with the sliding ring is arranged in the vertical sliding groove, and the inner driving rod is used for driving the inner rotating rod. The lower sleeve comprises a lower fixed cylinder, a lower stop seat and a lower sleeve body, the lower fixed cylinder is mounted on the metering detection pipe, the lower stop seat is mounted on the upper end of the lower fixed cylinder, the lower sleeve body is mounted on the upper end of the lower stop seat, two opposite second inner grooves are formed in the outer wall of the lower sleeve body, an inner compression spring and an outer push block are mounted in the second inner grooves, the inner compression spring is located on the inner side of the outer push block and abuts against the outer push block, and the outer push block abuts against the inner rotating rod.

2. The high-precision pretreatment device for biological processes according to claim 1, characterized in that The macromolecular organic matter removal device comprises a removal box, the removal box is provided with a first macromolecular product intercepting net and a second macromolecular product intercepting net, and the removal box has an inclined inner guide surface, the inflow end of the removal box is located at the high end of the inclined inner guide surface, and the outflow end of the removal box is located at the low end of the inclined inner guide surface.

3. The high-precision pretreatment device for biological processes according to claim 1, characterized in that Two support pieces are arranged on the external water inlet pipe on both sides of the metering detection pipe, the support piece comprises a first U-shaped block and a second U-shaped block, the first U-shaped block and the second U-shaped block are symmetrically arranged on the external water inlet pipe, the first U-shaped block is provided with a stud and two vertical guide columns, the seat plate is arranged on the stud and the two vertical guide columns, and the metering detection module is arranged on the seat plate.

4. The high-precision pretreatment device for biological processes according to claim 1, characterized in that The upper fixed cylinder is arranged at the bottom of the seat plate, the upper stop seat is arranged at the bottom of the upper fixed cylinder, and the upper sleeve body is arranged at the bottom of the upper stop seat.

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