Sewage treatment equipment for municipal water supply and drainage

Abstract

The utility model discloses sewage treatment equipment for municipal water supply and drainage, which belongs to the technical field of sewage treatment and comprises pretreatment mechanisms and a serial connection component, the serial connection component is connected between the head and the tail of the two pretreatment mechanisms, and each pretreatment mechanism comprises a sewage filtering component and a water inlet component for municipal water supply and drainage. The water inlet assembly is installed at one end of the sewage filtering assembly, and the end, away from the water inlet assembly, of the sewage filtering assembly is further connected with the water drainage assembly. According to the invention, particulate impurities in various types of wastewater can be filtered in a finer and layered manner, and the treatment mode can reduce the probability that particulate matters enter the subsequent secondary and advanced treatment stages, so that the efficiency of the whole sewage treatment system is improved, and the service life of equipment in the advanced treatment stage is prolonged; the activity of microorganisms can be better protected, and the effectiveness of a biological treatment stage is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to sewage treatment equipment for municipal water supply and drainage. Background Art

[0002] Sewage treatment equipment in municipal water supply and drainage systems refers to facilities used to treat various types of wastewater, including urban domestic sewage, industrial wastewater, rainwater, etc. The main purpose of these equipment is to remove suspended solids, organic matter, nutrients (such as nitrogen, phosphorus), heavy metals and other pollutants in sewage to meet discharge standards or reuse requirements, thereby reducing pollution to the environment.

[0003] At present, the sewage treatment equipment used in municipal water supply and drainage systems usually includes multiple stages such as primary treatment, secondary treatment and advanced treatment. Among them, the structural design of the pretreatment device used for primary sewage treatment is too simple. During use, the existing pretreatment device cannot perform multi-level impurity filtration treatment on various types of wastewater such as domestic sewage, industrial wastewater and rainwater, and cannot effectively remove particulate impurities in various types of wastewater such as domestic sewage, industrial wastewater and rainwater. Due to the presence of impurities such as particulate matter, it will have a certain impact on the subsequent secondary treatment and advanced treatment of sewage, such as affecting the activity of microorganisms and reducing the treatment efficiency. At the same time, these impurities may also damage the equipment in the advanced treatment stage, such as clogging the filtration system and reducing the service life of the equipment; in addition, the existing pretreatment device is not convenient for disassembly, assembly, connection, maintenance and replacement of the collection components used for particulate impurity filtration, and it is not convenient to remove the filtered particulate impurities from the inside of the pretreatment device, which will not only extend the maintenance cycle of the equipment, but also have a certain impact on the continuous and efficient operation of the sewage treatment system.

[0004] Based on this, we propose a municipal water supply and drainage sewage treatment equipment to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the name of the utility model to avoid blurring the purpose of this section, the abstract of the specification and the name of the utility model, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0006] Therefore, the purpose of the utility model is to provide a sewage treatment equipment for municipal water supply and drainage, which can solve the problems of single structure of pretreatment device in municipal water supply and drainage system, inability to perform effective multi-level impurity filtration, and complex maintenance operation, which affects the subsequent sewage treatment efficiency and equipment life.

[0007] In order to solve the above technical problems, the utility model provides a sewage treatment equipment for municipal water supply and drainage, which adopts the following technical scheme: comprising a pretreatment mechanism and a series component, wherein the series component is connected between the head and tail of two groups of pretreatment mechanisms, wherein the pretreatment mechanism comprises a sewage filter assembly and a water inlet assembly for municipal water supply and drainage, wherein the water inlet assembly is installed at one end of the sewage filter assembly, and the end of the sewage filter assembly away from the water inlet assembly is also connected to a drainage assembly;

[0008] The series connection components include a connecting pipe and a connecting pipe head for municipal water supply and drainage, and the connecting pipe head is installed at both ends of the connecting pipe.

[0009] By adopting the above technical scheme, the municipal water supply and drainage sewage treatment equipment proposed in this scheme can perform more detailed and thorough impurity filtration treatment on wastewater of different sources and properties by designing a pretreatment mechanism that can be used in series. Specifically, the pretreatment mechanisms are connected by series components to form a continuous treatment chain. Each pretreatment mechanism is composed of a water inlet, a metal barrel filter assembly, an impurity filter cartridge, and a drain outlet, so that the sewage can flow continuously through multiple filtration stages, and impurities of different sizes and types are removed in each stage;

[0010] This solution uses an impurity filter cartridge installed in the metal barrel, which can not only capture particulate impurities but also facilitate disassembly and replacement, ensuring filtration efficiency while bringing convenience to equipment maintenance and cleaning. In addition, the sewage flow path design and the structure of each component allow for quick access and disassembly, providing users with an easy operation and maintenance experience.

[0011] Optionally, the sewage filter assembly includes a metal barrel body, and an impurity filter cartridge is connected to the top of the metal barrel body.

[0012] By adopting the above technical solution, the impurity filter cartridge in this solution is the actual filtering unit, which is installed inside the top of the metal barrel. The impurity filter cartridge is the key link in the entire pretreatment mechanism responsible for the preliminary filtration of suspended solids and large particle impurities in the sewage. Through the internal barrel groove and screen, the impurity filter cartridge can effectively intercept and collect particulate impurities, preventing these impurities from entering the series components or subsequent treatment stages, thereby improving the sewage treatment effect and reducing the pollution burden that may be faced in subsequent links.

[0013] Optionally, a limit retaining ring is installed on the top of the impurity filter cylinder, and screening mesh plates are laid around and on the bottom of the impurity filter cylinder.

[0014] By adopting the above technical solution, this solution is to enhance the functionality of the impurity filter cartridge by laying a screening mesh, so that impurities can be more effectively captured and isolated during the sewage treatment process, wherein the aperture of the screening mesh can be designed according to actual filtration needs to intercept suspended solids and particulate matter of different sizes, which may include sand, debris and various other types of impurities.

[0015] Optionally, a circulation groove is opened through the middle of the metal barrel body, and connecting screw grooves are opened around the two ends of the metal barrel body respectively, and an annular retaining groove is also arranged between one group of the connecting screw grooves and the circulation groove, and the annular retaining groove matches the limit retaining ring structure, and the annular retaining groove and the limit retaining ring are snap-fitted.

[0016] By adopting the above technical solution, this solution can ensure the fixation of the impurity filter cartridge in the metal barrel body through the structural design of the snap-fit ​​between the annular retaining groove and the limit retaining ring, prevent it from being displaced due to water flow impact or mechanical vibration during sewage treatment, maintain the stable operation of the entire sewage filter assembly, and at the same time, make the installation and disassembly process of the impurity filter cartridge faster and easier.

[0017] Optionally, the water inlet assembly includes a first cover plate, a water delivery pump is installed on the top of the first cover plate, and a water delivery pipe head is also connected to the top of the water delivery pump.

[0018] By adopting the above technical solution, this solution uses a water pump installed on the top of the first cover plate. Its core function is to suck the sewage from the original water source and push it into the interior of the sewage filter component, or to suck the sewage from the previous group of sewage filter components and push it directly into the next group of sewage filter components. The water pump is the power heart of the entire treatment equipment and has sufficient water absorption and pushing capabilities to make the entire treatment process continuous and efficient.

[0019] Optionally, the drainage assembly includes a second cover plate, a bottom of the second cover plate is connected to a drainage pipe head, and an impurity filter bucket is arranged inside the second cover plate.

[0020] By adopting the above technical solution, this solution uses an impurity filter bucket installed inside the second cover plate, which is mainly used to collect and isolate fine impurities that cannot be completely removed during the filtration process. These impurities may escape when water flows through the filter cartridge, and the impurity filter bucket acts as the last line of defense to prevent impurities from leaving the sewage treatment system with the water flow, thereby ensuring the purity of the treated water.

[0021] Optionally, the impurity filter bucket includes a conical bucket frame, and the conical bucket frame is wrapped with a leakage mesh plate on all sides.

[0022] By adopting the above technical solution, the impurity filter bucket in this solution not only achieves efficient filtration of fine impurities through the coordinated use of the conical bucket frame and the leakage mesh plate, but also facilitates the removal of accumulated impurities and the maintenance of the filter bucket.

[0023] Optionally, a threaded ring body is connected to one side of the second cover plate and the first cover plate, and the threaded ring body matches the connecting screw groove structure. The threaded ring body and the connecting screw groove are threadedly matched. A sealing rubber ring is also laid around one side of the threaded ring body, and the sealing rubber ring and the connecting screw groove are transitionally matched.

[0024] By adopting the above technical solution, the arrangement of the sealing rubber ring in this solution is to provide a sealing interface between the threaded ring body and the connecting screw groove. The presence of the sealing rubber ring can prevent the leakage of water and tiny particles during the processing process, thereby improving the sealing performance of the entire system. The transition fit means that there is no strict mechanical limit between the sealing rubber ring and the connecting screw groove, but the material properties of the rubber ring (such as elasticity and compressibility) are used to fill the gap and form a seal. This design can absorb some installation errors and is also convenient for disassembly and reinstallation during maintenance.

[0025] In summary, the present invention has at least one of the following beneficial effects:

[0026] 1. Compared with traditional sewage pretreatment, the greatest beneficial effect brought by the sewage treatment equipment of the utility model is the dual improvement in improving the sewage treatment quality and the convenience of operation and maintenance. First, by connecting multiple groups of pretreatment mechanisms in series, the equipment can perform more detailed and layered filtering treatment on particulate impurities in various types of wastewater. This treatment method can not only reduce the probability of particulate matter entering the subsequent secondary and advanced treatment stages, thereby improving the efficiency of the entire sewage treatment system and extending the service life of the equipment in the advanced treatment stage, but also better protect the activity of microorganisms and ensure the effectiveness of the biological treatment stage;

[0027] 2. Secondly, the structural design of the pretreatment mechanism in this scheme makes the disassembly, assembly and replacement of parts (such as impurity filter cartridges) more convenient, which greatly reduces the maintenance cost and time of the equipment. This design scheme makes regular maintenance work simpler and faster, thereby ensuring that the sewage treatment equipment can continue to operate stably and efficiently. In short, the utility model optimizes the design, improves the treatment efficiency, reduces the overall operating cost, and significantly improves the sustainability and environmental friendliness of municipal water supply and drainage sewage treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0029] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0030] Figure 2 This is a schematic diagram of the disassembly of the pre-processing mechanism of the utility model;

[0031] Figure 3 This is a schematic diagram of the structure of the series components of the utility model;

[0032] Figure 4 This is a schematic diagram of the disassembly of the sewage filter assembly of the utility model;

[0033] Figure 5 This is a schematic diagram of the structure of the water inlet assembly of the utility model;

[0034] Figure 6 This is a schematic diagram of the structure of the drainage component of the utility model.

[0035] Explanation of the reference numerals: 100, pretreatment mechanism; 101, sewage filtering assembly; 101a, metal barrel; 101a-1, circulation groove; 101a-2, connecting screw groove; 101a-3, annular retaining groove; 101b, impurity filter cartridge; 101b-1, limit retaining ring; 101b-2, screening mesh plate; 102, water inlet assembly; 102a, first cover plate; 102b, water delivery pump; 102c, water delivery pipe head; 103, drainage assembly; 103a, second cover plate; 103a-1, threaded ring; 103a-2, sealing rubber ring; 103b, drainage pipe head; 103c, impurity filter bucket; 103c-1, conical bucket frame; 103c-2, leakage mesh plate; 200, series component; 201, connecting pipe; 202, connecting pipe head. DETAILED DESCRIPTION

[0036] The following is combined with Figure 1-6 The utility model is described in further detail.

[0037] Embodiment 1, refer to Figure 1-4 The utility model discloses a sewage treatment device for municipal water supply and drainage.

[0038] The pretreatment mechanism 100 includes a pretreatment mechanism 100 and a series component 200. The series component 200 is connected between the head and tail of the two pretreatment mechanisms 100. The pretreatment mechanism 100 includes a sewage filter assembly 101 and a water inlet assembly 102 for municipal water supply and drainage. The water inlet assembly 102 is installed at one end of the sewage filter assembly 101. The end of the sewage filter assembly 101 away from the water inlet assembly 102 is also connected to a drainage assembly 103.

[0039] The series component 200 includes a connecting pipe 201 and a connecting pipe head 202 for municipal water supply and drainage. The connecting pipe head 202 is installed at both ends of the connecting pipe 201.

[0040] The sewage filter assembly 101 includes a metal barrel body 101a, and an impurity filter cartridge 101b is connected to the top of the metal barrel body 101a. The impurity filter cartridge 101b in this solution is an actual filtering unit, which is installed inside the top of the metal barrel body 101a. The impurity filter cartridge 101b is a key link in the entire pretreatment mechanism 100 responsible for the preliminary filtration of suspended solids and large particle impurities in the sewage. Through the internal barrel groove and screen, the impurity filter cartridge 101b can effectively intercept and collect particulate impurities to prevent these impurities from entering the series component 200 or the subsequent treatment stage, thereby improving the sewage treatment effect and reducing the pollution burden that may be faced in the subsequent links.

[0041] Example 2, refer to Figure 4-5 In this embodiment, in order to solve the problem that the pretreatment device in the municipal water supply and drainage system has a single structure, cannot effectively filter impurities at multiple levels, and has complex maintenance operations, which affects the subsequent sewage treatment efficiency and equipment life, based on the same concept as the above-mentioned embodiment 1, the municipal water supply and drainage sewage treatment equipment also includes:

[0042] A limit retaining ring 101b-1 is installed on the top of the impurity filter cylinder 101b, and screening mesh plates 101b-2 are laid around and on the bottom of the impurity filter cylinder 101b. The purpose of laying the screening mesh plates 101b-2 is to enhance the functionality of the impurity filter cylinder 101b, so that impurities can be more effectively captured and isolated during the sewage treatment process. The aperture of the screening mesh plates 101b-2 can be designed according to actual filtering needs to intercept suspended solids and particulate matter of different sizes, which may include sand, debris and various other types of impurities.

[0043] A circulation groove 101a-1 is provided through the middle of the metal barrel body 101a, and connecting screw grooves 101a-2 are provided around the two ends of the metal barrel body 101a, and an annular retaining groove 101a-3 is also provided between one group of connecting screw grooves 101a-2 and the circulation groove 101b. The annular retaining groove 101a-3 matches the structure of the limit retaining ring 101b-1, and the annular retaining groove 101a-3 and the limit retaining ring 101b-1 are snap-fitted. The snap-fitting structural design between the annular retaining groove 101a-3 and the limit retaining ring 101b-1 can ensure the fixation of the impurity filter cartridge 101b in the metal barrel body 101a, prevent it from being displaced due to water flow impact or mechanical vibration during sewage treatment, maintain the stable operation of the entire sewage filter assembly 101, and at the same time, make the installation and disassembly process of the impurity filter cartridge 101b faster and easier.

[0044] The water inlet assembly 102 includes a first cover plate 102a, a water pump 102b is installed on the top of the first cover plate 102a, and a water pipe head 102c is also connected to the top of the water pump 102b. The core function of the water pump 102b installed on the top of the first cover plate 102a is to suck the sewage from the original water source and push it into the interior of the sewage filter assembly 101, or to suck the sewage from the previous group of sewage filter assemblies 101 and push it directly into the next group of sewage filter assemblies 101. The water pump 102b is the power heart of the entire treatment equipment, and has sufficient water absorption and pushing capabilities to make the entire treatment process continuous and efficient.

[0045] Example 3, refer to Figure 5-6 In this embodiment, in order to solve the problem that the pretreatment device in the municipal water supply and drainage system has a single structure, cannot effectively filter impurities at multiple levels, and has complex maintenance operations, which affects the subsequent sewage treatment efficiency and equipment life, based on the same concept as the above-mentioned embodiment 1, the municipal water supply and drainage sewage treatment equipment also includes:

[0046] The drainage component 103 includes a second cover plate 103a, the bottom of which is connected to a drainage pipe head 103b, and an impurity filter bucket 103c is arranged inside the second cover plate 103a. The impurity filter bucket 103c installed inside the second cover plate 103a is mainly used to collect and isolate fine impurities that cannot be completely removed during the filtration process. These impurities may escape when water flows through the filter cartridge 101b, and the impurity filter bucket 103c acts as the last line of defense to prevent impurities from leaving the sewage treatment system with the water flow, thereby ensuring the purity of the treated water.

[0047] The impurity filter bucket 103c includes a conical bucket frame 103c-1, and the conical bucket frame 103c-1 is wrapped with a leakage mesh plate 103c-2. The impurity filter bucket 103c in this solution not only achieves efficient filtration of fine impurities, but also facilitates the removal of accumulated impurities and maintenance of the filter bucket through the coordinated use of the conical bucket frame 103c-1 and the leakage mesh plate 103c-2.

[0048] A threaded ring body 103a-1 is connected around one side of the second cover plate 103a and the first cover plate 102a. The threaded ring body 103a-1 matches the structure of the connecting screw groove 101a-2. The threaded ring body 103a-1 and the connecting screw groove 101a-2 are threadedly matched. A sealing rubber ring 103a-2 is also laid around one side of the threaded ring body 103a-1. The sealing rubber ring 103a-2 and the connecting screw groove 101a-2 are transitionally matched. The arrangement of the sealing rubber ring 103a-2 in this solution is to A sealing interface is provided between 103a-1 and the connecting screw groove 101a-2. The presence of the sealing rubber ring 103a-2 can prevent the leakage of water and tiny particles during the processing process, thereby improving the sealing performance of the entire system. The transition fit means that there is no strict mechanical limit between the sealing rubber ring 103a-2 and the connecting screw groove 101a-2. Instead, the material properties of the rubber ring (such as elasticity and compressibility) are used to fill the gap and form a seal. This design can absorb some installation errors and is also convenient for disassembly and reinstallation during maintenance.

[0049] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A sewage treatment device for municipal water supply and drainage, comprising a pretreatment mechanism (100) and a series component (200), wherein the series component (200) is connected between the head and tail of two sets of pretreatment mechanisms (100), characterized in that: The pretreatment mechanism (100) comprises a sewage filter assembly (101) and a water inlet assembly (102) for municipal water supply and drainage, wherein the water inlet assembly (102) is installed at one end of the sewage filter assembly (101), and an end of the sewage filter assembly (101) away from the water inlet assembly (102) is also connected to a drainage assembly (103); The series component (200) comprises a connecting pipe (201) and a connecting pipe head (202) for municipal water supply and drainage, wherein the connecting pipe head (202) is installed at both ends of the connecting pipe (201).

2. A sewage treatment equipment for municipal water supply and drainage according to claim 1, characterized in that: The sewage filtering assembly (101) comprises a metal barrel body (101a), and an impurity filtering cartridge (101b) is connected to the top of the metal barrel body (101a).

3. A sewage treatment equipment for municipal water supply and drainage according to claim 2, characterized in that: A limit stop ring (101b-1) is installed on the top of the impurity filter cylinder (101b), and screening mesh plates (101b-2) are laid around and on the bottom of the impurity filter cylinder (101b).

4. A sewage treatment equipment for municipal water supply and drainage according to claim 3, characterized in that: A circulation groove (101a-1) is provided through the middle of the metal barrel body (101a), and connecting screw grooves (101a-2) are provided around both ends of the metal barrel body (101a), wherein an annular retaining groove (101a-3) is provided between one group of the connecting screw grooves (101a-2) and the circulation groove (101a-1), and the annular retaining groove (101a-3) matches the structure of the limit retaining ring (101b-1), and the annular retaining groove (101a-3) and the limit retaining ring (101b-1) are snap-fitted.

5. A sewage treatment equipment for municipal water supply and drainage according to claim 4, characterized in that: The water inlet assembly (102) comprises a first cover plate (102a), a water delivery pump (102b) is installed on the top of the first cover plate (102a), and a water delivery pipe head (102c) is also connected to the top of the water delivery pump (102b).

6. A sewage treatment equipment for municipal water supply and drainage according to claim 5, characterized in that: The drainage assembly (103) comprises a second cover plate (103a), the bottom of the second cover plate (103a) is connected to a drainage pipe head (103b), and an impurity filter bucket (103c) is arranged inside the second cover plate (103a).

7. A sewage treatment equipment for municipal water supply and drainage according to claim 6, characterized in that: The impurity filter bucket (103c) comprises a conical bucket frame (103c-1), and the conical bucket frame (103c-1) is surrounded by a leakage mesh plate (103c-2).

8. The sewage treatment equipment for municipal water supply and drainage according to claim 7, characterized in that: A threaded ring body (103a-1) is connected around one side of the second cover plate (103a) and the first cover plate (102a); the threaded ring body (103a-1) matches the structure of the connecting screw groove (101a-2); the threaded ring body (103a-1) and the connecting screw groove (101a-2) are threadedly matched; a sealing rubber ring (103a-2) is also laid around one side of the threaded ring body (103a-1); the sealing rubber ring (103a-2) and the connecting screw groove (101a-2) are transitionally matched.

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