Pipeline connecting piece and modular aeration pipeline

Abstract

The utility model discloses a pipeline connecting piece and a modularized aeration pipeline, and relates to the technical field of aeration, and the technical scheme is that the modularized aeration pipeline comprises a shell internally provided with a cavity; the device further comprises an air inlet, a first air outlet and a second air outlet. In the cavity of the core body, the core body is movably connected with the cavity; the core includes a first passage and a second passage. The first passage corresponds to a communicating path of the air inlet and the first air outlet; the second passage is not intersected with the first passage; and the second passage is a communicating path corresponding to the air inlet and the second air outlet. The pipeline connecting piece disclosed by the utility model has the beneficial effects that the pipeline connecting piece in the scheme can be used for arranging a branch of an aeration pipeline, and when the aeration pipeline locally breaks down, the conduction direction of the pipeline connecting piece can be changed by switching the working state of the core body, so that a crossover path is formed by virtue of the second air outlets of the two pipeline connecting pieces; therefore, the pipeline with local faults can be dismounted and repaired. And the work of other pipelines is not influenced in the repairing process.

Description

Technical Field

[0001] The utility model relates to the technical field of aeration, in particular to a pipeline connector and a modular aeration pipeline. Background Art

[0002] Aeration is a method of bringing air and water into strong contact, with the purpose of dissolving oxygen in the air into the water, or expelling unwanted gases and volatile substances in the water into the air. The aeration process corresponds to the aeration tank. Aeration treatment of sewage is achieved by laying aeration pipes in the tank.

[0003] At present, aeration tanks usually adopt a structural form in which a main air inlet pipe is laid, and then several branch pipes are set on the main air inlet pipe, and then aeration pipes are distributed on the branch pipes. For the layout of the aeration pipe as a whole, two forms are often adopted. One is a fixed type, that is, the aeration pipe is fixed as a whole at the bottom of the aeration tank; the other is a movable type, usually using a hanger-type structure to suspend the aeration pipe. For fixed pipes, when the pipes need to be repaired and maintained, the aeration tank needs to be emptied and then the pipes need to be operated. For movable pipes, the aeration pipes need to be pulled up with the help of corresponding lifting structures.

[0004] However, when problems occur in local pipelines, these two forms need to completely stop work and wait for the entire branch pipeline with problems to be repaired or replaced before they can continue working. This results in a long shutdown time and has a greater impact on the overall sewage treatment plant. Utility Model Content

[0005] In view of one of the deficiencies of the prior art, the utility model provides a pipeline connector to solve the repair and maintenance problem when a local failure occurs in aeration management.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a pipeline connector, comprising:

[0007] A shell body having a cavity therein;

[0008] An air inlet is provided on the shell and is used to inject gas into the shell;

[0009] A first air outlet is provided on the housing and can be communicated with the air inlet for normal air discharge;

[0010] A second gas outlet, which can be communicated with the gas inlet and is used to connect to the replacement pipeline for gas outlet;

[0011] The core body is arranged in the cavity of the shell, and the core body is movably connected with the cavity; the core body comprises:

[0012] A first passage is a through passage opened on the core body, and the first passage corresponds to a communication path between the air inlet and the first air outlet;

[0013] The second passage is a through passage opened on the core body, and the second passage and the first passage do not intersect; the second passage is a communication path corresponding to the air inlet and the second air outlet.

[0014] Preferably, the cavity inside the shell is in a straight cylindrical shape, and the core can slide along the length direction of the cavity; and further comprising:

[0015] The core driving structure can drive the core to slide in the cavity to convert between state one and state two.

[0016] Preferably, a guide block is provided on the inner wall of the cavity of the shell;

[0017] A guide groove is provided on the outer wall of the core body corresponding to the guide block, and the core body is slidably connected with the guide groove and the cavity through the guide block.

[0018] Preferably, one end of the cavity of the shell is a closed end, and the other end extends to one end of the shell to form an open end; the closed end of the cavity of the shell is the bottom end of the shell, and the open end of the cavity of the shell is the top end of the shell; and further comprising:

[0019] A first sealing cover, detachably connected to the top of the shell, capable of closing the top of the shell;

[0020] The second sealing cover is detachably connected to the top of the shell, and the second air outlet is arranged on the second sealing cover.

[0021] Preferably, it also includes:

[0022] A return spring is arranged between the bottom surface of the cavity and the core body.

[0023] Preferably, the driving structure comprises:

[0024] A fixed driving member, fixedly connected to the core body and disposed toward the top end of the shell;

[0025] The movable driving member is linked with the fixed driving member and can drive the core body to slide in the cavity through the fixed driving member.

[0026] Preferably, the fixed driving member is a screw rod fixedly arranged on the core body;

[0027] The movable driving member is a sleeve structure corresponding to the fixed driving member, and the inner wall of the cylinder of the movable driving member is provided with an internal thread corresponding to the fixed driving member; the movable driving member is rotatably connected to the first cover or the second cover.

[0028] Preferably, the core comprises:

[0029] A lower core body, on which the first passage is opened, and the first passage is a straight passage;

[0030] The upper core body is arranged on the upper side of the lower core body and is fixedly connected to the lower core body. The upper core body is a cylindrical structure with an open upper end. The fixed driving member is fixedly sleeved inside the upper core body. A through hole is opened on the cylinder wall of the upper core body.

[0031] The upper inner wall is a cylindrical structure, which is sleeved between the cylindrical wall of the upper core and the fixed driving member;

[0032] The through hole of the upper core and the inner space of the upper core form the second passage.

[0033] Preferably, the lower portion of the movable driving member is threadedly connected to the fixed driving member, and a screw hole is provided on the upper portion;

[0034] The first cover and the second cover are respectively provided with operation holes corresponding to the screw holes of the movable driving member, and covers are provided corresponding to the operation holes.

[0035] A modular aeration pipeline, comprising:

[0036] A main pipe connected to a gas supply source;

[0037] There are several aeration branches, each of which is composed of several aeration modules connected in series; each of the aeration modules includes the pipe connector as described above, and also includes:

[0038] An air inlet pipe, one end of which is connected to the air inlet of the shell, and the other end of which is used to communicate with the air flow passage of the aeration pipeline;

[0039] an air outlet pipe, connected to the first air outlet;

[0040] The spare pipeline has a pipeline connector at its end, and the spare pipeline is connected to the second air outlet through the pipeline connector.

[0041] Compared with the prior art, the invention has the following beneficial effects: the pipeline connector of the present invention can be used for setting up branches of aeration pipelines. By introducing the pipeline connector of the present invention into the aeration pipeline, when a local failure occurs in the aeration pipeline, the conducting direction of the pipeline connector can be changed by switching the working state of the core body, so that a bridging passage can be formed by means of the second air outlets of the two pipeline connectors, so that the pipeline with the local failure can be removed and repaired. The operation of other pipelines will not be affected during the repair process. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 A schematic diagram of a working state of an embodiment of the present application;

[0043] Figure 2 A top view of the working state of the embodiment of the present application;

[0044] Figure 3 for Figure 2 AA section view;

[0045] Figure 4 This is a schematic diagram of the core structure of an embodiment of the present application;

[0046] Figure 5 This is a second schematic diagram of the working state of the embodiment of the present application;

[0047] Figure 6 This is an internal state diagram of working state 2 of an embodiment of the present application;

[0048] Figure 7 for Figure 6 A partial enlarged view of;

[0049] In the figure:

[0050] 1. Main body; 11. Air inlet; 12. First air outlet; 13. Second air outlet; 2. Air inlet pipe; 3. Air outlet pipe; 4. Core body; 41. First passage; 42. Second passage; 43. Guide groove; 5. Core body driving structure; 51. Fixed driving member; 52. Movable driving member; 6. First cover; 7. Second cover; 8. Return spring; 9. Pin body. DETAILED DESCRIPTION

[0051] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0052] See also Figure 1-Figure 7 , this application provides the following technical solutions:

[0053] A pipe connector includes a shell 1 as the main part of the pipe connector, and a cavity is opened inside the shell 1. The shell 1 is provided with an air inlet 11, a first air outlet 12 and a second air outlet 13. The air inlet 11 and the first air outlet 12 are both opened on the shell wall of the shell 1. The air inlet 11 is used to inject gas into the shell 1; the first air outlet 12 is connected to the air inlet 11 and is used for normal air outlet; the second air outlet 13 can also be connected to the air inlet 11 and is used for connecting to replace the pipeline for air outlet.

[0054] The core 4 is movably connected in the cavity of the shell 1. The core 4 is used to switch the air outlet working state of the shell 1: a non-intersecting first passage 41 and a second passage 42 are arranged inside the core 4, and the first passage 41 and the second passage 42 are both through passages. The first passage 41 corresponds to the communication path between the air inlet 11 and the first air outlet 12; the second passage 42 corresponds to the communication path between the air inlet 11 and the second air outlet 13.

[0055] According to the position of the core 4 in the housing 1, it includes two displacement states, which are:

[0056] State 1, in which the first passage 41 is open, the second passage 42 is closed, and the air inlet 11 is connected to the first air outlet 12;

[0057] State 2: In this state, the second passage 42 is open, the first passage 41 is closed, and the air inlet 11 and the second air outlet 13 are connected.

[0058] The main functions of the pipeline connector of this scheme are the normal working state corresponding to the aforementioned state one, and the standby working state corresponding to the state two. This pipeline connector can be used in the aeration pipeline to form a segmented structure in each branch pipe. When a certain pipeline part fails, the pipeline connectors at both ends of the faulty pipeline can be switched to state two, and at the same time, a spare pipe is connected between the second air outlets 13 of the two pipeline connectors. Then the faulty pipeline can be disassembled, and a plug can be set at the disassembly position corresponding to the pipeline connector. Then the aeration pipeline can be restored to use, and most of its areas will not affect the use. When the maintenance is completed, the repaired pipeline can be replaced.

[0059] Based on the above implementation scheme, the cavity inside the shell 1 is straight cylindrical, and the core 4 can slide along the length direction of the cavity; a guide block is provided on the inner wall of the cavity of the shell 1; a guide groove 43 is provided on the outer wall of the core 4 corresponding to the guide block, and the core 4 is slidably connected with the guide groove 43 and the cavity through the guide block.

[0060] A core driving structure 5 is provided corresponding to the core 4 , and the core driving structure 5 can drive the core 4 to slide in the cavity, thereby performing a conversion between state one or state two.

[0061] The core driving structure 5 can be implemented in a variety of different ways, as long as it can make the core 4 move.

[0062] On the basis of the above implementation scheme, one end of the cavity of the shell 1 is a closed end, and the other end extends to one end of the shell 1 to form an open end; for the sake of convenience of explanation, the closed end of the cavity of the shell 1 is referred to as the bottom end of the shell 1, and the open end of the cavity of the shell 1 is referred to as the top end of the shell 1; this state is also the installation state recommended for use by the present pipe connector.

[0063] A first cover 6 and a second cover 7 are provided at the top of the corresponding shell 1. The first cover 6 and the second cover 7 can be detachably connected to the top of the shell 1. The difference between the two is that the first cover 6 can close the top of the shell 1; the second air outlet 13 is provided on the second cover 7.

[0064] When used as normal, that is, in state 1, the first cover 6 is used to close the top of the housing 1. When state 2 is needed, the second cover 7 replaces the first cover 6.

[0065] Regardless of the first cover 6 or the second cover 7, the core drive structure 5 is arranged inside the space formed by the two and the shell 1. In view of the special working environment of the aeration pipeline, that is, inside the aeration tank. This pipeline connector takes into account as much as possible to avoid the internal structure being affected by sewage. If a conventional three-way valve body structure is adopted, its valve stem and another passage will be exposed to sewage under normal conditions, and it is very likely to be affected by sewage and fail to work normally. However, this solution adopts the method of replacing the first cover 6 or the second cover 7 when changing the working state, and the core drive structure 5 is always located inside the shell 1, so the above problem will not occur.

[0066] On the basis of the above embodiment, the driving structure 5 includes a fixed driving member 51 and a movable driving member 52. The fixed driving member 51 is fixedly connected to the core 4 and is arranged toward the top of the shell 1; the movable driving member 52 is linked with the fixed driving member 51, and can drive the core 4 to slide in the cavity through the fixed driving member 51.

[0067] The fixed driving member 51 only needs to be able to drive the core 4 to move, and can be in a variety of different ways, such as a push rod structure. The movable driving member 52 only needs to be able to drive the fixed driving member 51 to move, such as a push block structure, but it should be noted that no matter what structure is used, it is necessary to ensure that the movable driving member 51 can lock the position state of the fixed driving member 51.

[0068] Based on the above implementation scheme, this solution provides a specific implementation scheme of the fixed driving member 51 and the movable driving member 52. The fixed driving member 51 is selected to be a screw rod fixedly set on the core body 4; the movable driving member 52 is a sleeve structure corresponding to the fixed driving member 51, and the inner wall of the cylinder of the movable driving member 52 is provided with an internal thread corresponding to the fixed driving member 51.

[0069] A movable driving member 52 is disposed inside the first cover 6 and the second cover 7, respectively, and the upper end of the movable driving member 52 is rotatably connected to the inside of the first cover 6 and the second cover 7. Operation holes are provided on the first cover 6 and the second cover 7 corresponding to the screw holes of the movable driving member 52, and covers are provided corresponding to the operation holes.

[0070] A return spring 8 is arranged between the bottom surface of the cavity and the core 4 .

[0071] With this structure, when the position of the core 4 needs to be changed, the first cover 6 or the second cover 7 is installed first. For the sake of convenience, the first cover 6 or the second cover 7 will be referred to as "cover" in the following. When the cover is installed, ensure that the movable driving member 52 is sleeved and threaded with the fixed driving member 51, because the position of the movable driving member 52 can be changed with the position of the cover, and it can rotate freely, so it will not affect the position of the core 4. When the cover and the shell 1 are fixedly connected, the relative position of the movable driving member 52 and the cover is fixed. At this time, the movable driving member 52 can only rotate. With the rotation of the movable driving member 52, the fixed driving member 51 is fixedly connected to the core 4, and the core 4 is restricted by the guide block and the guide groove 43 and cannot rotate, so the fixed driving member 51 will drive the core 4 to slide and move in the cavity.

[0072] On the basis of the above implementation scheme, the core body 4 includes a lower core body, an upper core body and an upper inner wall. The first passage 41 is opened in the lower core body, and the first passage 41 is a straight passage; the upper core body is arranged on the upper side of the lower core body and is fixedly connected to the lower core body. The upper core body is a cylindrical structure with an open upper end, and the fixed driving member 51 is fixedly sleeved inside the upper core body; a through hole is opened on the cylinder wall of the upper core body; the upper inner wall is a cylindrical structure, which is sleeved between the cylinder wall of the upper core body and the fixed driving member 51. The through hole of the upper core body and the internal space of the upper core body form a second passage 42. It should be noted that there are two through holes on the cylinder wall of the upper core body, and the two through holes correspond to the directions of air intake and air outlet, respectively. When the second air outlet 13 is used to exhaust air, the airflow enters the spare pipeline from the second passage 42, and then enters the second air outlet 13 of another pipeline connector. At this time, the second air outlet 13 of this pipeline connector is actually used for air intake. After entering, the airflow can enter the air intake pipe of the subsequent pipeline through the through hole of the upper core.

[0073] The core body 4 is provided with a plurality of sealing rings, at least one of which is provided between the first passage 41 and the second passage 42 .

[0074] Through this solution, when the return spring 8 is in a natural state, it can lift the core 4, at which time the first passage 41 is connected, and the second passage 41 is closed under the action of the cavity inside the housing 1. When this solution is adopted, as a simplification of the above structure, the movable driving member 52 inside the first cover 6 can be omitted. Because the first cover 6 can achieve the shielding of the internal fixed driving member 51, and under the action of the return spring 8, the core 4 is in a state-position that conforms to normal operation.

[0075] On the basis of the above implementation scheme, the lower part of the movable driving member 52 is threadedly connected to the fixed driving member 51, and a screw hole is opened on the upper part; the screw hole adopts an inner hexagonal hole structure. The movable driving member 52 is a hollow cylinder structure with two ends open.

[0076] Through the structural arrangement of the present solution, when the cover and the housing 1 are connected, the cover on the cover can be removed, and then a straight-rod-shaped hexagonal spanner can be inserted, and the position of the core 4 can be adjusted by screwing the driving member 52. In particular, when the core 4 is adjusted to state 2, if the cover is to be replaced while keeping the core 4 in the same position, the staff can press the hexagonal spanner by hand to ensure that the bottom of the spanner is against the upper end surface of the fixed driving member 51. In this state, the cover is screwed to be removed, and the cover can be removed by sleeved on the outside of the hexagonal spanner. For the replaced cover, the movable driving member 52 thereon is also sleeved down from the outer wall of the spanner until the installation of the cover and the positioning of the movable driving member 52 are completed.

[0077] On the basis of the above embodiment, a hexagonal nut structure is provided at the lower part of the first cover 6 and the second cover 7, and the width between the two parallel surfaces of the hexagonal nut structure corresponds to the spacing between the two parallel outer walls of the housing 1, and a pin body 9 is provided on the outer wall of the housing 1. The pin body 9 can move toward the upper end of the housing 1, and the pin body 9 itself is provided with a self-locking structure.

[0078] According to the present solution, after the cover is screwed, the pin body 9 can be pushed upwards, and the pin body 9 can be pressed against the outer wall of the cover to prevent the cover from rotating.

[0079] On the basis of the above implementation scheme, the self-locking structure of the pin body 9 can be adopted by setting a movable block on the outer surface of the pin body 9, and setting a clamping block on both sides of the moving path of the movable block, and setting a boss on the side wall of the movable block facing the clamping block, and correspondingly setting a clamping groove on the clamping block. When the boss is clamped into the clamping groove, the position of the pin body 9 can be self-locked.

[0080] Based on the above implementation scheme, see Figure 7 , two groups of upper inner walls are provided, and the two groups of upper inner walls form two annular cylinder wall structures that are sleeved, wherein the inner diameter of the inner cylinder wall corresponds to the outer wall of the movable driving member 52, and a sealing ring is provided on the upper end of the cylinder wall, and the inner diameter of the outer cylinder wall is larger than the inner cylinder wall, and its height is higher than the inner cylinder wall, and a sealing ring is also provided on the upper end, and the sealing rings of the two cylinder walls are both in contact with the outer wall of the movable driving member 52. Through this structure, a double layer of protection is formed for the movable driving member 52. When in use, even if the cover has a certain degree of leakage, the possibility of the related components of the core driving structure 5 being affected is very small.

[0081] On the basis of the above implementation scheme, this scheme provides a modular aeration pipeline, which includes a main pipe connected to a gas supply source, a plurality of aeration branches are arranged on the main pipe, and each aeration branch is composed of a plurality of aeration modules connected in series.

[0082] In addition to the aforementioned pipe connectors, each aeration module also includes an air inlet pipe 2 and an air outlet pipe 3. One end of the air inlet pipe 2 is connected to the air inlet of the shell 1, and the other end is used to communicate with the air flow path of the aeration pipeline, that is, the other end of the air inlet pipe 2 is connected to the air outlet pipe 3 of the adjacent aeration module, and the air inlet pipe 2 of the aeration module at the end is connected to the main pipe; the air outlet pipe 3 is connected to the first air outlet 12, and the other end is connected to the air inlet pipe 2 of the adjacent aeration module. Multiple aerators can be set in the middle of each aeration module, and the number of aerators and the size of the aeration module can be selected according to actual conditions. In addition, as a maintenance alternative in case of failure, a spare pipeline is set, and a pipeline connector is set at the end of the spare pipeline, and the spare pipeline is connected to the second air outlet 13 through the pipeline connector. The pipeline connector can be selected from existing technologies, as long as it can be conveniently connected to the second air outlet 13. The spare pipeline can be a hose or a hard pipe body, which can be selected by the staff from the existing pipeline types according to actual conditions.

[0083] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A pipe connector, characterized in that: include: A housing (1) having a cavity therein; An air inlet (11) is provided on the shell (1) and is used for injecting gas into the shell (1); A first air outlet (12) is provided on the housing (1) and can be communicated with the air inlet (11) for normal air discharge; A second gas outlet (13) which can be communicated with the gas inlet (11) and is used to connect to the gas outlet of the replacement pipeline; The core (4) is arranged in the cavity of the shell (1), and the core (4) is movably connected to the cavity; the core (4) comprises: a first passage (41), the first passage (41) corresponding to a communication path between the air inlet (11) and the first air outlet (12); The second passage (42) does not intersect with the first passage (41); the second passage (42) is a communication path corresponding to the air inlet (11) and the second air outlet (13).

2. The pipe connector according to claim 1, characterized in that: The cavity inside the shell (1) is in the shape of a straight cylinder, and the core (4) can slide along the length direction of the cavity; and further comprises: The core driving structure (5) can drive the core (4) to slide in the cavity to switch between state one or state two.

3. The pipe connector according to claim 2, characterized in that: The inner wall of the cavity of the housing (1) is provided with a guide block; A guide groove (43) is provided on the outer wall of the core body (4) corresponding to the guide block, and the core body (4) is slidably connected with the guide groove (43) and the cavity via the guide block.

4. The pipe connector according to claim 2, characterized in that: One end of the cavity of the shell (1) is a closed end, and the other end extends to one end of the shell (1) to form an open end; the closed end of the cavity of the shell (1) is the bottom end of the shell (1), and the open end of the cavity of the shell (1) is the top end of the shell (1); and further comprises: A first sealing cover (6) is detachably connected to the top end of the shell (1) and can seal the top end of the shell (1); The second cover (7) is detachably connected to the top end of the shell (1), and the second air outlet (13) is arranged on the second cover (7).

5. The pipe connector according to claim 4, characterized in that: Also includes: A return spring (8) is arranged between the bottom surface of the cavity and the core (4).

6. The pipe connector according to claim 5, characterized in that: The driving structure (5) comprises: A fixed driving member (51) is fixedly connected to the core (4) and is disposed toward the top end of the shell (1); The movable driving member (52) is linked with the fixed driving member (51) and can drive the core body (4) to slide in the cavity through the fixed driving member (51).

7. The pipe connector according to claim 6, characterized in that: The fixed driving member (51) is a screw rod fixedly arranged on the core body (4); The movable driving member (52) is a sleeve structure corresponding to the fixed driving member (51), and the inner wall of the cylinder of the movable driving member (52) is provided with an internal thread corresponding to the fixed driving member (51); the movable driving member (52) is rotatably connected to the first cover (6) or the second cover (7).

8. The pipe connector according to claim 7, characterized in that: The core (4) comprises: A lower core body, on which the first passage (41) is opened, and the first passage (41) is a straight passage; The upper core body is arranged on the upper side of the lower core body and is fixedly connected to the lower core body. The upper core body is a cylindrical structure with an open upper end. The fixed driving member (51) is fixedly sleeved inside the upper core body. A through hole is opened on the cylinder wall of the upper core body. The upper inner wall is a cylindrical structure and is sleeved between the cylindrical wall of the upper core and the fixed driving member (51); The through hole of the upper core and the internal space of the upper core form the second passage (42).

9. The pipe connector according to claim 8, characterized in that: The lower part of the movable driving member (52) is threadedly connected to the fixed driving member (51), and the upper part is provided with a screw hole; The first cover (6) and the second cover (7) are provided with operating holes corresponding to the screw holes of the movable driving member (52), and covers are provided corresponding to the operating holes.

10. A modular aeration pipeline, characterized in that: include: A main pipe connected to a gas supply source; Aeration branches are provided with a plurality of aeration branches, each of which is composed of a plurality of aeration modules connected in series; each of the aeration modules comprises a pipeline connector as described in any one of claims 1 to 9, and further comprises: An air inlet pipe (2), one end of which is connected to the air inlet of the shell (1), and the other end of which is used to be connected to the air flow passage of the aeration pipeline; An air outlet pipe (3) connected to the first air outlet (12); The spare pipeline has a pipeline connector at its end, and the spare pipeline is connected to the second air outlet (13) via the pipeline connector.

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