Self-cleaning device of point-to-point water distributor

Abstract

The invention discloses a self-cleaning device of a point-to-point water distributor, and relates to the technical field of sewage treatment equipment, the self-cleaning device is matched with the point-to-point water distributor for use, the self-cleaning device comprises a self-cleaning system, the self-cleaning system comprises a gas distribution mechanism, the gas distribution mechanism is connected with the point-to-point water distributor, the gas distribution mechanism is connected with an external gas source, and the external gas source is connected with the point-to-point water distributor. Equally dividing the flushing gas; the flushing mechanism is connected with the gas distribution mechanism, and the flushing mechanism is used for conveying flushing gas; the gas outlet mechanism is connected with the other end of the flushing mechanism, and the gas outlet mechanism exhausts flushing gas; the gas distribution mechanism, the flushing mechanism and the gas outlet mechanism are matched to perform back flushing on the point-to-point water distributor; by means of the structure, automatic cleaning of the point-to-point water distributor is achieved, the problem that the point-to-point water distributor is blocked in engineering application is solved, the system cannot disturb the sludge layer structure at the bottom of the hydrolysis reaction tank, and meanwhile microbe growth is better facilitated by means of regular supplementation of trace oxygen.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment equipment, and in particular to a self-cleaning device for a point-to-point water distributor. Background Art

[0002] Point-to-point water distributors are widely used in the field of sewage treatment. Their design and function are to achieve uniform distribution of sewage in a certain working area according to a certain rule, thereby ensuring the efficiency and stability of sewage treatment. The core components of this device include the water distributor body, the precisely laid out water distribution pipes and the efficient swirl water distribution cap. The three work together to ensure that the water flow can be accurately delivered to every corner of the treatment area according to the predetermined mode and rate.

[0003] In the actual operation of sewage treatment, it is crucial to evenly distribute the incoming water. The pollutant concentration, pH value, temperature and other factors in the sewage may vary in different locations. If the incoming water cannot be evenly distributed, it will lead to uneven treatment effects. Some areas may be over-treated, while other areas may be under-treated. The point-to-point water distributor effectively solves this problem through its precise design. It ensures that the sewage can flow into the treatment area according to the established path and speed, promotes the full contact between the sewage and the biological reaction medium (such as activated sludge), and improves the efficiency of biodegradation.

[0004] However, despite the many theoretical advantages of point-to-point water distributors, they also face some challenges in practical applications, especially after long-term operation. Since it relies on gravity flow to distribute water, the water flow rate is relatively slow, which gives sludge, impurities and other particles in the sewage an opportunity to take advantage of. They are easily deposited in the water distribution pipe or swirl water distribution cap with the water flow, gradually accumulating until they cause blockage. This blockage not only affects the uniformity of water distribution, but may also cause water flow short-circuiting, resulting in insufficient treatment of some areas and reducing the overall treatment efficiency.

[0005] At present, although there are methods for cleaning the blockage of water distributor pipes, they all have certain limitations. Although manual use of wire to dredge is direct, the working environment is often harsh, the cleaning process is time-consuming and labor-intensive, inefficient, and poses a potential threat to the health of operators. Another method is to use a submersible pump to pump water to flush the blocked pipe (such as Chinese patent CN206735897U). Although it can alleviate the blockage problem to a certain extent, both methods require regular manual intervention, which is inefficient. Untimely maintenance will cause the hydrolysis system to fail, which not only increases operating costs, but also limits the continuity and automation level of sewage treatment. Summary of the invention

[0006] The purpose of the present invention is to provide a self-cleaning device for a point-to-point water distributor, which can realize regular automatic cleaning of the point-to-point water distributor by setting up a self-cleaning system to solve the problem of pipeline blockage.

[0007] The purpose of the present invention can be achieved through the following technical solutions:

[0008] A self-cleaning device for a point-to-point water distributor, used in conjunction with the point-to-point water distributor, comprises a self-cleaning system, the self-cleaning system comprising:

[0009] A gas distribution mechanism, the gas distribution mechanism is connected to the point-to-point water distributor, the gas distribution mechanism is connected to an external gas source, and the flushing gas is evenly distributed;

[0010] A flushing mechanism, the flushing mechanism is connected to the gas distribution mechanism, and the flushing mechanism delivers flushing gas;

[0011] An air outlet mechanism, the air outlet mechanism is connected to the other end of the flushing mechanism, and the air outlet mechanism discharges flushing gas;

[0012] The air distribution mechanism, flushing mechanism and air outlet mechanism cooperate to backwash the point-to-point water distributor.

[0013] As a further solution of the present invention: the air distribution mechanism includes an air distribution main pipe and an air distribution branch pipe, the air distribution branch pipes are provided in multiple groups, the multiple groups of air distribution branch pipes are sealingly connected to the air distribution main pipe, and an air intake pipe is provided on the axial surface of the air distribution main pipe away from the air distribution branch pipe.

[0014] As a further solution of the present invention: at least one group of air intake pipes is provided.

[0015] As a further solution of the present invention: the flushing mechanism is a recoil airway;

[0016] There are multiple recoil air pipes, and the number of the recoil air pipes is consistent with the number of water distribution pipes of the water distributor in the corresponding point-to-point water distributor.

[0017] As a further solution of the present invention: the recoil air pipe and the air branch pipe are connected via a quick-connect joint.

[0018] As a further solution of the present invention: the flushing mechanism is a composite tube;

[0019] The composite pipe comprises a composite water distribution pipe and a composite recoil air pipe, and the composite pipe is integrally extruded;

[0020] The number of the composite pipes is consistent with the number of water distribution pipes in the corresponding point-to-point water distributor.

[0021] As a further solution of the present invention: the air outlet mechanism is an air outlet pipe, one end of the air outlet pipe is connected to the recoil air pipe, and the other end of the air outlet pipe is connected to the swirl water distribution cap of the point-to-point water distributor.

[0022] As a further solution of the present invention: the air outlet mechanism is a composite swirl water distribution cap;

[0023] The composite cyclone water distribution cap comprises a water distribution cap body and a composite air outlet pipe, wherein the composite air outlet pipe is connected to the composite recoil air pipe, and the water distribution cap body is connected to the composite water distribution pipe.

[0024] As a further solution of the present invention: an air ring is arranged between the water distribution cap body and the composite air outlet pipe, the air ring is arranged on the outer axial surface of the water distribution cap body, an annular air flow cavity is opened inside the air ring, and a plurality of groups of air outlets are opened on the axial surface of the water distribution cap body corresponding to the position of the air flow cavity, the composite air outlet pipe is connected to the air ring and communicated with the air flow cavity.

[0025] As a further solution of the present invention: the air outlet is a conical structure, the conical mouth of the air outlet corresponds to the inside of the water distribution cap body, and the conical tail of the air outlet corresponds to the air ring.

[0026] Beneficial effects of the present invention:

[0027] The present invention arranges a self-cleaning system, wherein the self-cleaning system comprises an air separation mechanism, a flushing mechanism and an air outlet mechanism which are arranged in cooperation with the point-to-point water distributor, wherein the air separation mechanism is connected to the flushing mechanism, and the flushing mechanism is connected to the air outlet mechanism, so as to form a self-cleaning passage, thereby realizing automatic cleaning of the point-to-point water distributor, and performing regular cleaning in combination with external air source control, thereby effectively solving the problem of system blockage and being maintenance-free. At the same time, the self-cleaning system regularly maintains a micro-oxygen state, which is beneficial to increasing the effective sludge amount and microbial activity in the system.

[0028] The present invention arranges the flushing mechanism as a composite pipe, and replaces the water distribution pipe and the recoil air pipe of the point-to-point water distributor with an integrally formed composite pipe, so that the composite pipe can be easily assembled during assembly, and the multi-tube assembly is adjusted to a single-tube direct correspondence, which makes assembly easier and has a higher assembly effect, saving system investment costs. In addition, by arranging a composite swirl water distribution cap for the air outlet mechanism in conjunction with the above-mentioned composite pipe, there is no need to install the water distribution pipe and the swirl water distribution cap again when installing the point-to-point water distributor, making the overall point-to-point water distributor and the self-cleaning system more simple in assembly structure, easy to operate, and convenient to maintain and manage. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The present invention will be further described below in conjunction with the accompanying drawings.

[0030] Figure 1This is a schematic diagram of the structure of the cooperation between the first embodiment of the present invention and a point-to-point water distributor;

[0031] Figure 2 It is a schematic diagram of the overall structure of the first embodiment of the present invention;

[0032] Figure 3 yes Figure 2 A schematic diagram of the enlarged structure of the middle A area;

[0033] Figure 4 yes Figure 2 Schematic diagram of the enlarged structure of the middle B area;

[0034] Figure 5 This is a schematic diagram of the structure of the gas distribution main pipe in the first embodiment of the present invention;

[0035] Figure 6 is a schematic diagram of the location of the air intake pipe in the second embodiment of the present invention;

[0036] Figure 7 This is a schematic diagram of the structure of the third embodiment of the present invention in cooperation with a point-to-point water distributor;

[0037] Figure 8 It is a schematic diagram of the overall structure of the third embodiment of the present invention;

[0038] Fig. 9 yes Figure 8 Schematic diagram of the enlarged structure of the middle C area;

[0039] Fig.10 is a schematic diagram of the composite tube structure in Embodiment 3 of the present invention;

[0040] Fig.11 yes Figure 8 Schematic diagram of the enlarged structure of the middle D area;

[0041] Fig.12 Schematic diagram of the connection structure between the air ring, the water distribution cap body and the composite air outlet pipe in the fourth embodiment of the present invention Figure 1 ;

[0042] Fig.13 Schematic diagram of the connection structure between the air ring, the water distribution cap body and the composite air outlet pipe in the fourth embodiment of the present invention Figure 2 ;

[0043] Fig.14 is a schematic diagram of the air outlet structure in the fourth embodiment of the present invention;

[0044] Fig.15 It is a schematic diagram of the structure of the gas distribution control system of the present invention;

[0045] Fig.16 It is a schematic diagram of the structure of the gas distribution controller of the present invention.

[0046] In the figure: 1. Point-to-point water distributor; 11. Water inlet pipe; 12. Water distribution pipe of water distributor; 13. Water distribution pipe; 14. Cyclone water distribution cap; 2. Self-cleaning system; 21. Air distribution main pipe; 211. Air outlet; 22. Recoil air pipe; 23. Air outlet pipe; 231. Straight tube; 232. Horizontal part; 24. Air distribution branch pipe; 25. Air inlet pipe; 26. Quick connector; 27. Composite pipe; 271. Composite water distribution pipe; 272. Composite recoil air pipe; 28. Composite cyclone water distribution cap; 281. Water distribution cap body; 282. Composite air outlet pipe; 283. Air outlet; 284. Air ring; 285. Air flow cavity; 3. Air distribution control system; 31. Electric control cabinet; 32. Air storage tank; 33. Air compressor; 34. Air distribution controller. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0048] Embodiment 1

[0049] like Figure 1-Figure 5 As shown, the present embodiment provides a self-cleaning device for a point-to-point water distributor, the self-cleaning device comprising a self-cleaning system 2, the self-cleaning system 2 comprising an air separation mechanism, a flushing mechanism and an air outlet mechanism which are arranged in cooperation with the point-to-point water distributor 1, wherein the air separation mechanism is connected to the flushing mechanism, the flushing mechanism is connected to the air outlet mechanism, to form a self-cleaning passage, to achieve automatic cleaning of the point-to-point water distributor, to effectively solve the problem of system blockage, and to be maintenance-free, while the self-cleaning system regularly maintains a micro-oxygen state, which is beneficial to increasing the effective sludge volume and microbial activity in the system.

[0050] It should be noted in this embodiment that the above-mentioned point-to-point water distributor 1 is the prior art and is only briefly described here. It includes a water distributor body, a water distribution pipe 13 and a swirl water distribution cap 14, and the three work together. The water distributor body includes a water inlet pipe 11 and a plurality of water distributor distribution pipes 12 arranged around the water inlet pipe 11. The water distributor distribution pipes 12 are connected to the water distribution pipes 13 to evenly distribute the sewage.

[0051] like Figure 1-Figure 3 As shown, the gas distribution mechanism in this embodiment includes a gas distribution main pipe 21, on the axial surface of one end of the gas distribution main pipe 21 are connected a plurality of gas distribution branch pipes 24, and on the axial surface of the gas distribution main pipe 21 away from the gas distribution branch pipes 24 is provided an air inlet pipe 25 for connecting with an external gas source to ventilate the gas distribution main pipe 21, and the gas is pressurized gas.

[0052] The present embodiment does not limit the shape of the gas distribution main pipe 21, which may be annular (such as Figure 5 As shown) or customized according to actual needs, and preferably the air distribution main pipe 21 is connected to the water distributor body to achieve coordination and facilitate installation. The air distribution main pipe 21 can also be connected to other related structures to ensure smooth air intake.

[0053] It is further noted that if Figure 5 As shown, a plurality of gas outlet holes 211 are evenly spaced on the axial surface of one end of the gas distribution main pipe 21, and each gas outlet hole 211 is sealed and connected to the corresponding gas distribution branch pipe 24, such as being welded together, to achieve gas distribution from the gas distribution main pipe 21 to the gas distribution branch pipe 24.

[0054] Furthermore, the air distribution mechanism can be a matching structure that corresponds one-to-one with the actual point-to-point water distributor 1, that is, the number of air distribution branch pipes 24 is consistent with the number of 12 water distribution pipes of the water distributor used in conjunction, and corresponds one-to-one, so as to achieve flushing of each water distribution waterway; the air distribution mechanism can also be a standard structure, that is, the number of air distribution branch pipes 24 is inconsistent with the number of 12 water distribution pipes of the water distributor actually used, and appropriate air distribution mechanism standard parts are selected according to the corresponding number of 12 water distribution pipes of the water distributor (the number of air distribution branch pipes 24 is greater than or equal to the number of 12 water distribution pipes of the water distributor).

[0055] By standardizing the design of the gas distributor, it is possible to reduce duplication of work in the design and avoid unnecessary customized design, thus significantly improving design efficiency; and the standardized structure enables the gas distributor to be mass-produced, reducing the cost of customization and special processing. In the manufacturing process, the standardized gas distributor can more easily realize automated production and quality control, thereby improving production efficiency and quality. Standardized components have uniform interfaces and sizes, which makes maintenance and repair work more convenient and faster. When replacement or repair is needed, matching components and parts can be quickly found, reducing maintenance time and costs.

[0056] Further, if Figure 3 As shown, the other end of the gas distribution branch pipe 24 in the gas distribution mechanism is connected to the flushing mechanism through a connecting structure. In this embodiment, the flushing mechanism is a recoil air pipe 22, and a plurality of recoil air pipes 22 are provided. The number of recoil air pipes 22 is consistent with the number of corresponding water distribution pipes 12 of the water distributor, so as to realize the flushing of each water distribution waterway;

[0057] It should be noted that when the air distribution mechanism is a matching structure that corresponds one-to-one with the actual point-to-point water distributor 1, the connection structure adopts a quick-connect joint 26 for a one-to-one connection; when the air distribution mechanism is a standard part, the connection structure adopts a combination of a quick-connect joint 26 and a plug, and the air distribution branch pipe 24 corresponding to the recoil air pipe 22 is connected to the recoil air pipe 22 through a quick-connect joint 26, and the other air distribution branch pipes 24 are sealed with plugs to prevent air leakage from affecting flushing.

[0058] Furthermore, if Figure 1-Figure 4 As shown, the air outlet mechanism in this embodiment is an air outlet pipe 23, and the shape of the air outlet pipe 23 is not limited. In this embodiment, the L-shape is taken as an example. The L-shaped air outlet pipe 23 has a straight tube portion 231 and a horizontal portion 232. The connecting end of the straight tube portion 231 of the air outlet pipe 23 is connected to one end of the backwash air pipe 22, and the connecting end of the horizontal portion 232 of the air outlet pipe 23 is connected to the swirl water distribution cap 14 of the point-to-point water distributor 1 used in conjunction, so as to realize ventilation of the water distribution pipe 13 and the swirl water distribution cap 14, and then backwash each corresponding pipeline to avoid blockage caused by accumulation of sludge, impurities and other particulate matter inside the water distribution pipe 13 or the swirl water distribution cap 14.

[0059] It should be noted that the direction of the air inlet port where the air outlet pipe 23 is connected to the swirl water distribution cap 14 can be vertically parallel to the inner wall of the swirl water distribution cap 14, so that most of the pressurized gas entering can flush the water distribution pipe 13 upward and carry away impurities, thereby cleaning the water distribution pipe 13. A small amount of gas will flush the swirl water distribution cap 14 downward under the interference of water flow and upward gas, which can clear the blockage of the swirl water distribution cap 14 on the one hand, and bring a small amount of oxygen to the sludge layer at the bottom of the entire hydrolysis reaction tank on the other hand, which is beneficial to increase the effective sludge amount and microbial activity in the bottom of the hydrolysis reaction tank. Since the air intake pressure is not high (the gas separation mechanism is controlled at 0.4MPa), the gas flowing out of the swirl water distribution cap 14 has little impact on the sludge layer structure at the bottom of the biochemical reaction tank, and the impact is relatively small; of course, the direction can also be tilted one step further to reduce the gas outlet from the bottom, increase the upward flow of gas, and avoid a small impact on the sludge layer structure at the bottom of the biochemical reaction tank.

[0060] Furthermore, the self-cleaning system 2 in this embodiment is connected to an external gas source, and the self-cleaning action of periodic reverse flushing is realized by periodic pressurized gas supply of the gas source. Fig.15 and Fig.16 The gas source structure is described as an example;

[0061] Among them Fig.15 and Fig.16 As shown, the gas source includes a gas distribution control system 3, and the gas distribution control system 3 is internally provided with an electric control cabinet 31, a gas storage tank 32, an air compressor 33 and a gas distribution controller 34. The electric control cabinet 31 controls the air compressor 33 to regularly pressurize the gas storage tank 32, so that the pressurized gas enters the self-cleaning system 2 through the gas distribution controller 34, and enters the swirl water distribution cap 14 through the gas distribution main pipe 21, the gas distribution branch pipe 24, the backwash air pipe 22 and the air outlet pipe 23 in turn, so as to regularly flush the point-to-point water distributor 1 in the prior art;

[0062] The time interval between two adjacent backwashes is set by the staff based on practical experience.

[0063] A flow meter can be set inside the gas distribution controller 34 to control the air intake volume. Furthermore, the gas distribution controller 34 can be provided with multiple sets of pipelines, which are connected to multiple sets of self-cleaning systems 2 to achieve regular backwashing of multiple sets of point-to-point water distributors 1. Therefore, a project only needs to be equipped with one gas distribution control device, reducing the investment cost of the self-cleaning system 2.

[0064] Furthermore, a solenoid valve may be provided in the gas distribution controller 34 to control the self-cleaning systems 2 of different groups, and the systems may be operated individually or synchronously.

[0065] Embodiment 2

[0066] In order to make the gas distribution more uniform, this embodiment is based on the first embodiment. Figure 6 As shown, the air outlet 211 opened on the axial surface of the air distribution main pipe 21 is divided into multiple air outlet areas, and each air outlet area is correspondingly provided with an air inlet pipe 25. The air intake of multiple air inlet pipes 25 makes the air intake of the air distribution main pipe 21 tend to be uniform, thereby ensuring the uniformity of backwashing of the self-cleaning system 2, improving the flushing effect, and saving the additional flushing time of the poorly flushed pipes when the backwashing is uneven, thereby saving the overall flushing time of the point-to-point water distributor 1 and improving efficiency.

[0067] Embodiment 3

[0068] When the self-cleaning system 2 in Example 1 is assembled with the point-to-point water distributor 1, since the recoil air pipe 22 and the water distribution pipe 13 are relatively long, when they are extended into the bottom of the pool for bottom assembly, that is, when they are assembled with the swirl water distribution cap 14, the multiple recoil air pipes 22 and the multiple water distribution pipes 13 extended into the pool are easily entangled with each other, presenting a chaotic state that cannot be easily matched. It usually takes a long time to distinguish the corresponding pipelines (that is, to distinguish which water distribution pipe 13 corresponds to which recoil air pipe 22), which makes the entire assembly time longer and the installation efficiency low, thereby increasing the investment cost of the entire system.

[0069] In view of this, this embodiment further improves the self-cleaning system 2 of the first embodiment;

[0070] Among them Figure 7-Figure 11 As shown, the gas distribution mechanism remains the same. In this embodiment, the flushing mechanism of the self-cleaning system 2 is a composite tube 27. The composite tube 27 is as shown in FIG. Fig.10 As shown, it is formed by integral extrusion and structurally includes a composite water distribution pipe 271 and a composite recoil air pipe 272. The integrally formed composite pipe 27 replaces the water distribution pipe 13 of the point-to-point water distributor 1 and the recoil air pipe 22 in Example 1, so that during assembly, the composite pipe 27 can be easily assembled, and the multi-tube assembly in Example 1 is adjusted to a single-tube direct correspondence, making assembly easier and achieving a higher assembly effect, saving system investment costs.

[0071] Furthermore, the air outlet mechanism in the self-cleaning system 2 in this embodiment can also be improved to a composite cyclone water distribution cap 28. Fig.11 As shown, it is also an integrated structure, which structurally includes a water distribution cap body 281 and a composite air outlet pipe 282. The integrated composite swirl water distribution cap 28 replaces the swirl water distribution cap 14 of the point water distributor 1 and the air outlet pipe 23 in the first embodiment, making the assembly steps simpler;

[0072] The composite swirl water distribution cap 28 in this embodiment cooperates with the above-mentioned composite pipe 27 to avoid the need to reinstall the water distribution pipe 13 and the swirl water distribution cap 14 when installing the point-to-point water distributor 1, making the overall point-to-point water distributor 1 and the self-cleaning system 2 more convenient in assembly structure, easy to operate, and convenient to maintain and manage.

[0073] It should be noted in the present embodiment that when one end of the composite pipe 27 is installed with the water distributor water distribution pipe 12 and the air branch pipe 24 or when the other end of the composite pipe 27 is installed with the composite swirl water distribution cap 28, it is necessary to perform certain processing on the composite pipe 27, that is, manually separate the connected composite water distribution pipe 271 and the composite recoil air pipe 272 structures by a certain distance according to actual installation requirements.

[0074] Implementation Four

[0075] On the basis of Example 3, since the air outlet of the composite air outlet pipe 282 is only arranged on one side of the composite cyclone water distribution cap 28, the gas inside the water distribution cap body 281 in the air intake area is uneven during backwashing. On the one hand, the areas far away from the air outlet of the composite air outlet pipe 282 may not be able to obtain sufficient airflow flushing, resulting in the residue and dirt in these areas being difficult to be effectively removed. On the other hand, the unilateral airflow flushing may cause excessive wear of a certain part of the water distribution cap body 281, thereby affecting the overall service life of the water distribution cap body 281.

[0076] Therefore, this embodiment Figure 12-14 As shown, the water distribution cap body 281 and the composite air outlet pipe 282 are not integrally formed, and an air ring 284 is arranged between the connection between the water distribution cap body 281 and the composite air outlet pipe 282, and the air ring 284 is welded to the outer axial surface of the water distribution cap body 281, and an annular air flow cavity 285 is opened inside the air ring 284, and a plurality of groups of air outlets 283 are opened at the position of the air flow cavity 285 on the axial surface of the water distribution cap body 281, and the composite air outlet pipe 282 is installed on the air ring 284, wherein the air ring 284 and the composite air outlet pipe 282 can be integrally formed, and by adding the air outlet 283, a plurality of evenly distributed air outlets 283 can ensure that the airflow is evenly distributed inside the water distribution cap body 281, thereby more effectively removing the residue and dirt in the pipeline and improving the backblowing efficiency.

[0077] Furthermore, the gas ring 284 may be Fig.13 As shown, a larger area is set, and more air outlets 283 are opened on the axial surface of the water distribution cap body 281 to increase the number of air inlets and improve the uniformity of air intake.

[0078] Furthermore, if Fig.15 As shown, the above-mentioned air outlet 283 is provided with a conical structure, the conical mouth corresponds to the inside of the water distribution cap body 281, and the conical tail corresponds to the side of the air ring 284. The conical air outlet 283 accelerates the flow rate of the intake air and improves the backwashing effect.

[0079] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, and a specific direction structure and operation, and therefore, cannot be understood as a limitation on the present invention. In addition, "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0080] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0081] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A self-cleaning device for a point-to-point water distributor, used in conjunction with the point-to-point water distributor (1), characterized in that: It comprises a self-cleaning system (2), wherein the self-cleaning system (2) comprises: An air distribution mechanism, the air distribution mechanism is connected to the point-to-point water distributor (1), the air distribution mechanism is connected to an external air source, and evenly distributes the flushing gas; A flushing mechanism, the flushing mechanism is connected to the gas distribution mechanism, and the flushing mechanism delivers flushing gas; An air outlet mechanism, the air outlet mechanism is connected to the other end of the flushing mechanism, and the air outlet mechanism discharges flushing gas; The gas distribution mechanism, the flushing mechanism and the gas outlet mechanism cooperate to backwash the point-to-point water distributor (1).

2. A self-cleaning device for a point-to-point water distributor according to claim 1, characterized in that: The gas distribution mechanism comprises a gas distribution main pipe (21) and a gas distribution branch pipe (24), wherein the gas distribution branch pipe (24) is provided with a plurality of groups, and the plurality of groups of the gas distribution branch pipes (24) are sealedly connected to the gas distribution main pipe (21), and an air inlet pipe (25) is provided on the axial surface of the gas distribution main pipe (21) on the side away from the gas distribution branch pipe (24).

3. The self-cleaning device of a point-to-point water distributor according to claim 2, characterized in that: At least one group of air intake pipes (25) is provided.

4. A self-cleaning device for a point-to-point water distributor according to claim 2 or 3, characterized in that: The flushing mechanism is a recoil air pipe (22); A plurality of the recoil air pipes (22) are provided, and the number of the recoil air pipes (22) is consistent with the number of water distribution pipes (12) of the corresponding point-to-point water distributor (1).

5. The self-cleaning device of a point-to-point water distributor according to claim 4, characterized in that: The recoil air pipe (22) and the air branch pipe (24) are connected via a quick-connect joint (26).

6. A self-cleaning device for a point-to-point water distributor according to claim 2 or 3, characterized in that: The flushing mechanism is a composite tube (27); The composite pipe (27) comprises a composite water distribution pipe (271) and a composite recoil air pipe (272), and the composite pipe (27) is integrally extruded; The number of the composite pipes (27) is consistent with the number of water distribution pipes (12) of the corresponding point-to-point water distributor (1).

7. The self-cleaning device of a point-to-point water distributor according to claim 4, characterized in that: The air outlet mechanism is an air outlet pipe (23), one end of which is connected to the recoil air pipe (22), and the other end of which is connected to the swirl water distribution cap (14) of the point-to-point water distributor (1).

8. The self-cleaning device of a point-to-point water distributor according to claim 6, characterized in that: The air outlet mechanism is a composite swirl water distribution cap (28); The composite cyclone water distribution cap (28) comprises a water distribution cap body (281) and a composite air outlet pipe (282), wherein the composite air outlet pipe (282) is connected to the composite recoil air pipe (272), and the water distribution cap body (281) is connected to the composite water distribution pipe (271).

9. The self-cleaning device of a point-to-point water distributor according to claim 8, characterized in that: An air ring (284) is arranged between the water distribution cap body (281) and the composite air outlet pipe (282); the air ring (284) is arranged on the outer axial surface of the water distribution cap body (281); an annular air circulation cavity (285) is provided inside the air ring (284); a plurality of groups of air outlets (283) are provided on the axial surface of the water distribution cap body (281) corresponding to the position of the air circulation cavity (285); the composite air outlet pipe (282) is connected to the air ring (284) and communicated with the air circulation cavity (285).

10. The self-cleaning device of a point-to-point water distributor according to claim 9, characterized in that: The air outlet (283) is a conical structure, the conical mouth of the air outlet (283) corresponds to the interior of the water distribution cap body (281), and the conical tail of the air outlet (283) corresponds to the air ring (284).

Images