Blockage removing structure for muddy water siphon of secondary sedimentation tank
By installing a piston and spring structure inside the siphon tube, high-pressure gas is used to break through or lift the blockage, thus solving the problem of blockage in the sludge siphon tube of the secondary sedimentation tank and achieving efficient unblocking effect and simple operation.
Patent Information
- Application Number
- CN202520151200.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-22
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2035-01-22
AI Technical Summary
The existing sludge siphon pipes in the secondary sedimentation tank are prone to clogging during use, resulting in low cleaning efficiency and increased workload for staff.
The system employs a piston and spring structure within the siphon tube. High-pressure gas pushes the piston to block the siphon inlet and uses air pressure to break through or lift the blockage, achieving automatic unblocking in conjunction with a pressure relief valve.
It improves the efficiency of clearing blockages, reduces the workload of staff, and has a simple structure that is easy to operate.
Smart Images
Figure CN223747037U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to sewage treatment technical field, concretely relates to a kind of mud water siphon of secondary sedimentation tank's unblocking structure. BACKGROUND
[0002] Usually the sedimentation tank after biological treatment is called secondary sedimentation tank or final sedimentation tank (final sedimentation tank), the function of secondary sedimentation tank is mud-water separation, makes mixed liquor clear, sludge concentration and returns separated sludge to biological treatment section.In the sludge treatment of secondary sedimentation tank, currently some sewage treatment plants adopt siphon structure to suck out sludge located at the bottom of secondary sedimentation tank, this structure is usually fixed sewage tank under the gallery bridge of secondary sedimentation tank, the water level line of secondary sedimentation tank is located between the slot opening and tank bottom of sewage tank, sewage tank is provided with siphon pipe passing through tank bottom in vertical direction, siphon pipe and sewage tank are fixed and sealedly connected together, the lower end of siphon pipe is close to the inner bottom surface of pool body, and the upper end is located above the water level line of pool body, the pipe body of siphon pipe and the position in sewage tank are provided with blow-off opening communicated with the inner hole of siphon pipe, blow-off opening is located below the water level line of pool body, and the tank bottom of sewage tank is fixedly connected with blow-off pipe communicated with the inside of sewage tank, blow-off pipe passes through pool body and is fixedly and sealingly connected together with pool body.But after a period of use, organic matter and inorganic matter in sludge will adhere to the pipe wall of blow-off pipe, which will gradually reduce the flow area in siphon pipe, and even cause blockage of sundries.Generally, when this situation occurs, staff will insert a long rake into the upper end of siphon pipe from above siphon pipe to fish up the blocked sundries at the bottom of inner hole of siphon pipe, but this not only has low unblocking efficiency, but also increases the work burden of staff. CONTENT OF UTILITY MODEL
[0003] In view of the above technical problems of prior art, the utility model solves the technical problems: how to provide a secondary sedimentation tank mud water siphon pipe unblocking structure with simple structure, convenient operation and good unblocking effect.
[0004] In order to solve the above technical problems, the utility model adopts the following technical scheme:
[0005] A kind of mud water siphon pipe unblocking structure of secondary sedimentation tank, including the siphon pipe of vertical arrangement, the lower end pipe opening of siphon pipe is provided with bottom plate for being closed, the inner hole bottom of siphon pipe is provided with piston, piston can be along siphon pipe center line direction and siphon pipe sliding seal cooperation, siphon pipe and the position between bottom plate and piston are provided with spring, and the both ends of spring are fixedly connected on bottom plate and piston respectively;
[0006] The siphon pipe body is provided with a siphon opening communicated with the inner hole of the siphon pipe at a position close to the bottom of the siphon pipe, and a limiting block is fixedly connected to the hole wall of the siphon pipe at a position above the siphon opening; when the spring is in a natural state, the siphon opening is above the piston; when the piston stretches the spring upward and abuts against the limiting block, the side surface of the piston can shield the siphon opening;
[0007] The bottom plate is fixedly connected with a gas delivery pipe communicated with the inner hole of the siphon pipe and capable of delivering gas into the inner hole of the siphon pipe, the other end of the gas delivery pipe is connected with a three-way valve, one interface of the three-way valve is connected with a high-pressure gas source, the other interface is provided with an exhaust valve, the piston is provided with a connecting gas hole for connecting the inner holes on both sides of the piston, and a pressure relief valve is arranged at the hole opening above the piston; when the high-pressure gas source fills high-pressure gas into the inner part of the siphon pipe through the gas delivery pipe, the pressure of the high-pressure gas can push the piston to move upward and abut against the limiting block; when the piston abuts against the limiting block and continuously fills high-pressure gas into the siphon pipe, the gas below the piston can be discharged to the upper part of the piston through the pressure relief valve.
[0008] In the utility model, in the daily working state of the siphon pipe, the spring is in a natural state, and the piston is below the siphon opening, at this time, the siphon opening is not hindered, and the siphon pipe normally siphons and discharges sewage. When the siphon pipe is blocked by sundries, the staff opens the high-pressure gas source, fills gas into the siphon pipe through the gas delivery pipe, and the high-pressure gas enters the siphon pipe below the piston, at this time, the gas pressure has not reached the discharge pressure of the pressure relief valve, therefore, under the action of the high-pressure gas pressure, the piston can be pushed to move upward and stretch the spring; after the piston moves upward and abuts against the limiting block, the side surface of the piston can shield the siphon opening, at this time, the high-pressure gas is continuously filled into the siphon pipe, the internal pressure is increased, when the pressure reaches the discharge pressure of the pressure relief valve, the gas below the piston can be discharged into the space above the piston through the pressure relief valve, and the discharged gas is gathered between the piston and the blockage; as the discharged gas is more and more, the pressure is also larger and larger, the gas can either break through the blockage to make the pipe unobstructed, or push the blockage to move upward to the position close to the upper end hole, so that the staff can salvage conveniently. After the blockage is removed, the gas supply of the high-pressure gas source is stopped, the exhaust valve is opened, the high-pressure gas below the piston is discharged from the exhaust valve in the reverse direction through the gas delivery pipe, after the pressure is reduced, the spring is retracted, the piston is pulled to move downward, the siphon opening is exposed again, and the normal siphoning working state is restored.
[0009] As an optimization, the number of the siphon openings is multiple and is uniformly spaced around the center line direction of the siphon pipe.
[0010] As optimization, the limiting block is an annular block arranged coaxially with the siphon pipe, the outer side of the annular block is welded and sealed with the hole wall of the siphon pipe, a layer of elastic rubber pad is arranged on the lower surface of the annular block, and the lower surface of the annular block and the upper surface of the piston are parallel planes.
[0011] As optimization, the upper surface of the bottom plate is formed with a screw convex ring which extends into the lower end port of the siphon pipe and is screw sealed with the lower end port, a sealing pad is arranged between the upper surface of the bottom plate and the lower end surface of the siphon pipe, and the sealing between the upper surface of the bottom plate and the lower end surface of the siphon pipe is realized by the compression of the sealing pad by the bottom plate.
[0012] Compared with the prior art, the utility model has the advantages of simple structure, the way of filling high-pressure gas, the use of gas pressure to break the blockage in the pipe, or the use of gas pressure to push the blockage to the upper end port, which facilitates the cleaning of the staff, reduces the work burden of the staff, and improves the cleaning efficiency. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 is a sectional view of the siphon pipe in the siphon sewage state in the utility model;
[0014] Figure 2 is a sectional view of the siphon pipe in the siphon sewage state in the utility model; DETAILED DESCRIPTION
[0015] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.
[0016] It should be noted that similar reference numerals and letters refer to like items in the accompanying drawings, and once an item is defined in one drawing, it need not be further defined and explained in subsequent drawings. In the description of the application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like, indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the application product is usually placed during use, and are only for the convenience of describing the application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application. In addition, the terms "first", "second", "third", and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance. In addition, the terms "horizontal", "vertical", and the like do not mean that the components must be absolutely horizontal or vertical, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined. In the description of the application, it should be noted that unless otherwise specified and limited, the terms "provided", "mounted", "connected", "linked" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.
[0017] As shown in Figure 1 and Figure 2 The structure for clearing the blockage of the two-sedimentation tank mud-water siphon pipe in the embodiment includes a vertically arranged siphon pipe 1, a bottom plate 2 arranged at the lower end of the siphon pipe 1 for closing the siphon pipe 1, a piston 3 arranged at the bottom of the inner hole of the siphon pipe 1, the piston 3 being capable of slidingly and sealingly cooperating with the siphon pipe 1 along the center line direction of the siphon pipe 1, a spring 4 arranged in the siphon pipe 1 and located between the bottom plate 2 and the piston 3, and the two ends of the spring 4 being fixedly connected to the bottom plate 2 and the piston 3, respectively.
[0018] A siphon port 5 is arranged at the position of the pipe body of the siphon pipe 1 and close to the bottom of the siphon pipe 1, and the siphon port 5 is in communication with the inner hole of the siphon pipe 1, a limiting block 6 is fixedly connected to the hole wall of the siphon pipe 1 and located above the siphon port 5, when the spring 4 is in a natural state, the siphon port 5 is located above the piston 3, when the piston 3 stretches the spring 4 upward and abuts against the limiting block 6, the side surface of the piston 3 can shield the siphon port 5.
[0019] The bottom plate 2 is fixedly connected with a gas delivery pipe 7 in communication with the inner hole of the siphon pipe 1 and capable of delivering gas to the inner hole of the siphon pipe 1, the other end of the gas delivery pipe 7 is connected with a three-way valve, one of the interfaces of the three-way valve is connected with a high-pressure gas source, the other interface is provided with an exhaust valve, the piston 3 is provided with a connecting gas hole for connecting the inner holes on both sides of the siphon pipe 1, the hole at the upper side of the piston 3 is provided with a pressure relief valve 8, when the high-pressure gas source fills high-pressure gas into the inner hole of the siphon pipe 1 through the gas delivery pipe, the pressure of the high-pressure gas can push the piston 3 to move upward and abut against the limiting block 6, when the piston 3 abuts against the limiting block 6 and continuously fills high-pressure gas into the inner hole of the siphon pipe 1, the gas below the piston 3 can be discharged to the upper side of the piston 3 through the pressure relief valve 8.
[0020] In the embodiment, the number of the siphon ports 5 is multiple and they are uniformly and spacedly arranged around the center line direction of the siphon pipe 1.
[0021] In the embodiment, the limiting block 6 is an annular block arranged with the same center line as the siphon pipe 1, the outer side of the annular block and the hole wall of the siphon pipe 1 are welded and sealedly connected together, a layer of elastic rubber pad is arranged on the lower surface of the annular block, and the lower surface of the annular block and the upper surface of the piston 3 are parallel planes.
[0022] In the embodiment, the upper surface of the bottom plate 2 is formed with a screw convex ring 9, the screw convex ring 9 extends into the lower end port of the siphon pipe 1 and is threadedly and sealingly connected with the same, a sealing pad is arranged between the upper surface of the bottom plate 2 and the lower end surface of the siphon pipe 1, and the sealing between the upper surface of the bottom plate 2 and the lower end surface of the siphon pipe 1 is realized by the compression of the sealing pad by the bottom plate.
[0023] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting, although the present application has been described by referring to the preferred embodiments of the present application, those skilled in the art should understand that various changes can be made in form and details without departing from the spirit and scope of the present application defined in the appended claims.
Claims
1. A structure for clearing the blockage of a mud-water siphon of a secondary sedimentation tank, comprising a vertically arranged siphon, characterized in that: The lower end nozzle of the siphon pipe is provided with a bottom plate for closing the lower end nozzle, the inner hole bottom of the siphon pipe is provided with a piston capable of slidingly and sealingly fitting with the siphon pipe along the center line direction of the siphon pipe, the siphon pipe is provided with a spring between the bottom plate and the piston, and the two ends of the spring are fixedly connected to the bottom plate and the piston respectively; The pipe body of the siphon pipe is provided with a siphon nozzle communicated with the inner hole of the siphon pipe near the bottom of the siphon pipe, the hole wall of the siphon pipe is fixedly connected with a limiting block above the siphon nozzle, when the spring is in a natural state, the siphon nozzle is above the piston, when the piston stretches the spring upward and abuts against the limiting block, the side surface of the piston can shield the siphon nozzle; The bottom plate is fixedly connected with a gas delivery pipe communicated with the inner hole of the siphon pipe and capable of delivering gas into the inner hole of the siphon pipe, the other end of the gas delivery pipe is connected with a three-way valve, one interface of the three-way valve is connected with a high-pressure gas source, the other interface is provided with an exhaust valve, the piston is provided with a connecting gas hole for connecting the inner holes on both sides of the siphon pipe, the hole opening of the connecting gas hole above the piston is provided with a pressure relief valve, when the high-pressure gas source fills high-pressure gas into the inner hole of the siphon pipe through the gas delivery pipe, the pressure of the high-pressure gas can drive the piston to move upward and abut against the limiting block, when the piston abuts against the limiting block and continuously fills high-pressure gas into the siphon pipe, the gas below the piston can be discharged to the upper side of the piston through the pressure relief valve.
2. The unplug structure of a secondary sedimentation tank sludge-water siphon according to claim 1, characterized in that: The number of the siphon nozzles is multiple and they are uniformly and intervally arranged around the center line direction of the siphon pipe.
3. The unplug structure of a secondary sedimentation tank sludge-water siphon according to claim 1, characterized in that: The limiting block is an annular block arranged on the same center line as the siphon pipe, the outer side of the annular block and the hole wall of the siphon pipe are welded and sealingly connected together, a layer of elastic rubber pad is arranged on the lower surface of the annular block, and the lower surface of the annular block and the upper surface of the piston are parallel planes.
4. The unplug structure of a secondary sedimentation tank sludge-water siphon according to claim 1, characterized in that: The upper surface of the bottom plate is protruded to form a screw protruding ring, the screw protruding ring extends into the lower end nozzle of the siphon pipe and is threadedly and sealingly connected with the lower end nozzle, a sealing pad is arranged between the upper surface of the bottom plate and the lower end surface of the siphon pipe, and the sealing between the upper surface of the bottom plate and the lower end surface of the siphon pipe is realized by the compression of the sealing pad by the bottom plate.