Mud settling elbow well seat

Abstract

The utility model belongs to the technical field of pipeline equipment, and particularly relates to a mud elbow well seat which comprises a well seat body, a baffle and a flow guide mechanism, an inlet pipe and an outlet pipe are installed on the well seat body, the inlet pipe and the outlet pipe form an elbow structure on the well seat body, and a mud settling chamber is arranged in the well seat body; the baffle plate is mounted on the inner wall of the sludge chamber, one end of the baffle plate close to the inlet pipe and the inner wall of the sludge chamber form a water channel, and an oil storage area is formed below; the flow guide mechanism is installed on the inner wall of the well base, penetrates through the baffle to be communicated with the inlet pipe and the silt settling chamber and is used for directly guiding water of the inlet pipe to the lower end face of the baffle, and the installation height of the inlet pipe and the installation height of the outlet pipe are both higher than the installation height of the baffle. According to the desilting elbow well seat, the baffle is arranged, water in the inlet pipe is guided below the baffle through the flow guide mechanism, water and oil dirt in the inlet pipe can enter the outlet pipe only through the position below the baffle, the water passing channel is arranged at the end close to the inlet pipe, silt, impurities and oil dirt can be intercepted, and the situation that the silt, the impurities and the oil dirt are carried again by high flow and flow out of the outlet pipe is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of pipeline equipment technology, and in particular relates to a sedimentation elbow well seat. Background Technology

[0002] Elbow manhole covers are used in urban drainage networks to connect drainage pipes at different angles. Since urban rainwater and sewage usually carry a large amount of silt, impurities, and oil, some elbow manhole covers are usually equipped with sedimentation chambers for sedimentation. The silt and other impurities carried by the water flow will settle in this space as they flow through, effectively preventing them from entering subsequent pipes, ensuring the smooth flow of drainage pipes, and reducing the frequency of pipe maintenance and cleaning.

[0003] Traditional sedimentation elbow well bases typically have an open top for sedimentation chambers, allowing sediment and impurities to settle inside. However, when the pipeline flow suddenly increases, the high-speed water flow directly washes over the surface of the sedimentation chamber, causing the settled sediment to be resuspended due to water flow disturbance and discharged from the outlet pipe with the water flow. This results in poor sedimentation. Furthermore, since oil has a lower specific gravity than water, it floats on the water surface and forms an oil layer. Traditional structures do not have an oil barrier, so the oil layer easily overflows from the outlet pipe with the water flow. Utility Model Content

[0004] The purpose of this utility model is to address the aforementioned technical problems by providing a sedimentation elbow well seat, which improves sedimentation and oil interception effects, while preventing sediment and impurities in the sedimentation chamber from being carried back into the outlet pipe under high flow conditions.

[0005] In view of this, the present invention provides a sedimentation elbow well base, comprising:

[0006] The well base is equipped with an inlet pipe and an outlet pipe, which form an elbow structure on the well base and have a sedimentation chamber inside.

[0007] A baffle is installed on the inner wall of the sedimentation chamber, and the end near the inlet pipe forms a water passage between the baffle and the inner wall of the sedimentation chamber, and an oil storage area is formed below the baffle.

[0008] The diversion mechanism is installed on the inner wall of the well base and passes through the baffle to connect the inlet pipe and the sedimentation chamber, and is used to directly guide the water in the inlet pipe to the lower end face of the baffle.

[0009] The installation height of both the inlet and outlet pipes is higher than the installation height of the baffle.

[0010] In the above technical solution, the flow guiding mechanism further includes:

[0011] The guide pipe is vertically installed through the baffle and connected to the baffle, and two of them are symmetrically arranged;

[0012] The irregularly shaped guide plate is connected to the inner wall of the well base by a support plate, and is used to evenly direct the water from the inlet pipe into the two guide pipes.

[0013] The support plate has through holes corresponding to the guide tube.

[0014] In the above technical solution, further:

[0015] The top of the irregularly shaped guide vane is higher than the highest water level of the well base.

[0016] In the above technical solution, further:

[0017] The irregularly shaped guide plate guides the water from the inlet pipe into the guide pipe in a direction tangential to the guide pipe.

[0018] In the above technical solution, further:

[0019] The guide tube includes a constricted section connected to the support plate, a throat section connected to the baffle, and a dilated section located below the baffle.

[0020] In the above technical solution, further:

[0021] The baffle is inclined from the outlet pipe to the inlet pipe and extends downward on the lowest side to form a protruding wing plate.

[0022] In the above technical solution, further:

[0023] The well base has a weir structure consisting of horizontal and vertical plates on the inner wall where it connects with the outlet pipe;

[0024] The bottom of the vertical plate has multiple water passage holes, and the water in the inlet pipe can only flow out through the outlet pipe by passing through the water passage holes or over the vertical plate.

[0025] Furthermore, the above technical solution also includes:

[0026] A round tube is installed vertically inside the well base, with its bottom end extending through the baffle into the sedimentation chamber;

[0027] The round tube is located on the side closest to the highest point of the baffle and is used to accommodate the passage of the dipstick.

[0028] The beneficial effects of this utility model are as follows:

[0029] 1. By setting up a baffle and using a flow guiding mechanism to direct the water in the inlet pipe to the bottom of the baffle, both the water and oil in the inlet pipe must pass under the baffle before entering the outlet pipe. Since oil usually floats on the water surface, the water passage is set at one end close to the inlet pipe to intercept mud, impurities and oil, reducing the risk of them being carried back out of the outlet pipe by high flow rates.

[0030] 2. By using two guide pipes and irregularly shaped guide plates, the separation effect of impurities in the water flow can be improved and the impact on the separation effect can be avoided at high flow rates. At the same time, the impact of water flow can be reduced and the stability can be improved.

[0031] 3. By using a specially shaped guide plate to guide the water from the inlet pipe into the guide pipe tangentially, and by setting the guide pipe into a constricted section, a throat section, and an expanded section, the water can enter the guide pipe in a spiral manner. Through a Venturi-like structure, the water flow velocity is enhanced, causing the water flow to form a vortex and generate centrifugal force. This causes large particles of impurities to move rapidly towards the funnel wall, collide, and settle quickly. Even smaller particles, under the continuous action of the vortex, continuously move towards the edge of the funnel and eventually settle to the bottom of the funnel or slide down the funnel wall, achieving separation from the water and improving separation efficiency and effect.

[0032] 4. The inclined baffle and the protruding wing plate formed by the baffle can effectively prevent small particles of silt and oil floating on the liquid surface from being carried back into the outlet pipe. The weir structure can slow down the water flow at the outlet pipe, further preventing small particles of silt and oil from being carried back into the outlet pipe, thus ensuring the sludge settling effect. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the structure of this utility model;

[0034] Figure 2 This is a top view of the present invention;

[0035] Figure 3 This is a utility model Figure 2 Sectional view at point AA;

[0036] Figure 4 This is a schematic diagram of the internal structure of this utility model;

[0037] The markings in the diagram represent: 1. Well base; 2. Inlet pipe; 3. Outlet pipe; 4. Sedimentation chamber; 5. Baffle; 50. Protruding wing plate; 6. Water passage; 7. Oil storage area; 8. Flow guiding mechanism; 80. Flow guiding pipe; 800. Neck section; 801. Throat section; 802. Neck widening section; 81. Irregularly shaped flow guide plate; 810. Arc-shaped part; 811. Diversion part; 812. Connecting part; 82. Support plate; 83. Through hole; 9. Weir structure; 90. Horizontal plate; 91. Vertical plate; 92. Water passage hole; 10. Circular pipe. Detailed Implementation

[0038] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0039] Example 1:

[0040] This embodiment provides a sedimentation elbow well base 1, including:

[0041] Well base 1 is equipped with inlet pipe 2 and outlet pipe 3, and inlet pipe 2 and outlet pipe 3 form an elbow structure on well base 1, and a sedimentation chamber 4 is provided inside.

[0042] Baffle 5 is installed on the inner wall of sedimentation chamber 4, and a water passage 6 is formed between the end near the inlet pipe 2 and the inner wall of sedimentation chamber 4, and an oil storage area 7 is formed below baffle 5.

[0043] The flow guiding mechanism 8 is installed on the inner wall of the well base 1 and passes through the baffle 5 to connect the inlet pipe 2 and the sedimentation chamber 4, and is used to directly guide the water in the inlet pipe 2 to the lower end face of the baffle 5.

[0044] The installation heights of inlet pipe 2 and outlet pipe 3 are both higher than the installation height of baffle 5.

[0045] As can be seen from this embodiment, by setting baffle 5 and using flow guiding mechanism 8 to guide the water inlet pipe 2 to below baffle 5, the water and oil inlet pipe 2 must pass below baffle 5 before entering outlet pipe 3. Since oil usually floats on the water surface, setting water passage 6 near one end of inlet pipe 2 can intercept mud, impurities and oil, reducing the risk of them being carried out of outlet pipe 3 by high flow rate.

[0046] Example 2:

[0047] This embodiment provides a sedimentation elbow well base 1, which, in addition to the technical solutions of the above embodiments, also has the following technical features: the flow guiding mechanism 8 includes:

[0048] The guide pipe 80 is set vertically through the baffle 5 and connected to the baffle 5, and two of them are set symmetrically to each other;

[0049] The irregularly shaped guide plate 81 is connected to the inner wall of the well base 1 by a support plate 82, and is used to evenly guide the water from the inlet pipe 2 into the two guide pipes 80.

[0050] The support plate 82 has through holes 83 corresponding to the guide tube 80;

[0051] Meanwhile, the irregularly shaped guide plate 81 specifically includes an arc-shaped part 810 with the same diameter as the top end of the guide pipe 80, a diversion part 811 for evenly guiding the water from the inlet pipe 2 into the guide pipe 80 in two directions, and a connecting part 812 for installing and connecting the irregularly shaped guide plate 81.

[0052] Furthermore, the through holes 83 on the guide pipe 80, the irregular guide plate 81, and the support plate 82 allow the vacuum suction pipe to pass through the arc-shaped part 810, the through hole 83, and the guide pipe 80 in sequence to enter the sedimentation chamber 4 when cleaning the sediment in the sedimentation chamber 4.

[0053] As can be seen from this embodiment, by using two guide pipes 80 and an irregularly shaped guide plate 81, the separation effect of impurities in the water flow can be improved and the impact on the separation effect can be avoided at high flow rates. At the same time, the impact of water flow can be reduced and the stability can be improved.

[0054] When cleaning the sediment in the sedimentation chamber 4, the vacuum suction pipe can pass through the arc-shaped part 810, the through hole 83 and the guide pipe 80 of the irregular guide plate 81 to enter the sedimentation chamber 4. That is, after opening the top of the well seat 1, the vacuum suction pipe can be extended into the sedimentation chamber 4, which effectively improves the cleaning efficiency and cleaning effect of the sedimentation chamber 4.

[0055] Example 3:

[0056] This embodiment provides a sedimentation elbow well base 1, which, in addition to the technical solutions of the above embodiments, also has the following technical features:

[0057] The top of the irregularly shaped guide plate 81 is higher than the highest water level of the well seat 1;

[0058] The highest water level of well seat 1 can be determined by collecting rainfall data from the area in recent years and simulating the pipeline flow rate during a once-in-a-lifetime rainstorm using the SWMM model. The highest water level inside well seat 1 is measured by a pressure sensor, and the average of three measurements plus a 10% safety factor is taken as the design maximum water level. The top height of the irregularly shaped guide plate 81 is equal to the design maximum water level plus the safety water level, ensuring that the oil layer can still be intercepted under overflow conditions. This is a routine operation for technicians in the relevant technical field and will not be elaborated here.

[0059] As can be seen from this embodiment, by making the top of the irregularly shaped guide plate 81 higher than the highest water level of the well seat 1, oil, sludge and impurities in the water flow can be effectively intercepted. Even under high flow conditions, these impurities and oil can be guided into the guide pipe 80 and then effectively intercepted in the sedimentation chamber 4, ensuring separation efficiency and separation effect.

[0060] Example 4:

[0061] This embodiment provides a sedimentation elbow well base 1, which, in addition to the technical solutions of the above embodiments, also has the following technical features:

[0062] The irregularly shaped guide plate 81 guides the water from the inlet pipe 2 into the guide pipe 80 in a direction tangential to the guide pipe 80.

[0063] As can be seen from this embodiment, by guiding the water from the inlet pipe 2 into the guide pipe 80 in the direction of the tangent of the guide pipe 80 through the irregular guide plate 81, the water can enter the guide pipe 80 in a spiral manner, so that the water flow forms a vortex and generates centrifugal force, causing large particles of impurities to move rapidly towards the funnel wall and collide and settle quickly. Even if the particles are small, under the continuous action of the vortex, they will continue to move closer to the edge of the funnel and eventually settle to the bottom of the funnel or slide down the funnel wall, thus achieving separation from the water and improving the separation efficiency and separation effect.

[0064] Example 5:

[0065] This embodiment provides a sedimentation elbow well base 1, which, in addition to the technical solutions of the above embodiments, also has the following technical features:

[0066] The guide tube 80 includes a constricted section 800 connected to the support plate 82, a throat section 801 connected to the baffle 5, and a dilated section 802 located below the baffle 5.

[0067] The guide tube 80 consists of two parts for easy installation. Specifically, the constricted section 800 and part of the throat section 801 are an integral structure, and the part of the throat section 801 and the expanded section 802 are an integral structure. The two throat sections 801 overlap and are connected to form the throat section 801.

[0068] As can be seen from this embodiment, by setting the guide pipe 80 into a constricted section 800, a throat section 801, and a dilated section 802, similar to a Venturi tube structure, the intensity of the vortex is enhanced. In the constricted section 800, the vortex extends downward in a regular spiral shape. The water flow accelerates in the constricted section and reaches the maximum flow velocity at the throat, forming a stable and high-intensity vortex. The high-frequency rotating vortex at the throat generates a strong centrifugal force, which can effectively separate small particulate impurities, causing some of the small particulate impurities to collide with each other to form larger particles, which are easier to settle. Meanwhile, the vortex range in the dilated pipe is expanded, which makes it easier for the separated impurities to settle and accumulate near the pipe wall, further improving the separation of silt and impurities in the water.

[0069] Example 6:

[0070] This embodiment provides a sedimentation elbow well base 1, which, in addition to the technical solutions of the above embodiments, also has the following technical features:

[0071] The baffle 5 is inclined from the outlet pipe 3 to the inlet pipe 2, and extends downward on the lowest side to form a protruding wing 50;

[0072] The protruding wing plate 50 and the baffle plate 5 adopt an integrated structure.

[0073] As can be seen from this embodiment, the inclined setting of the baffle 5 and the protruding wing plate 50 formed by the baffle 5 can effectively prevent the small particles of mud and sand that have been deposited and the oil floating on the liquid surface from being carried back into the outlet pipe 3.

[0074] Example 7:

[0075] This embodiment provides a sedimentation elbow well base 1, which, in addition to the technical solutions of the above embodiments, also has the following technical features:

[0076] The well base 1 has a weir structure 9 consisting of a horizontal plate 90 and a vertical plate 91 on its inner wall at the connection point with the outlet pipe 3;

[0077] The bottom end of the vertical plate 91 is provided with multiple water passage holes 92, and the water in the inlet pipe 2 can only flow out through the outlet pipe 3 by passing through the water passage holes 92 or over the vertical plate 91.

[0078] As can be seen from this embodiment, by setting the weir structure 9, the water flow at the outlet pipe 3 can be slowed down, further preventing small particles of mud and oil from being carried back into the outlet pipe 3, thus ensuring the sedimentation effect. The multiple water passage holes 92 can ensure that water flows into the outlet pipe 3 under low flow conditions, improving the applicability of the flow rate and ensuring stable and efficient treatment under both low and high flow conditions.

[0079] Example 8:

[0080] This embodiment provides a sedimentation elbow well base 1, which, in addition to the technical solutions of the above embodiments, also has the following technical features, and further includes:

[0081] The round tube 10 is vertically installed inside the well base 1, and its bottom end extends through the baffle 5 into the sedimentation chamber 4;

[0082] Among them, the round tube 10 is located on the side closest to the highest position of the baffle 5 and is used to accommodate the passage of the dipstick;

[0083] Meanwhile, the oil gauge can be the standard oil gauge used in the petroleum industry, which is existing technology and will not be elaborated here.

[0084] As can be seen from this embodiment, the setting of the circular pipe 10 facilitates the guidance of the oil gauge, and the oil gauge can easily obtain the amount of oil in the oil storage area 7, improving the convenience of maintenance, thereby cleaning the sediment and oil in the well seat 1 in a timely manner, avoiding partial overflow due to excessive sediment or oil, and being carried into the outlet pipe 3 by the high flow rate water.

[0085] In this application, the baffle 5, the guide pipe 80, the irregular guide plate 81, the support plate 82, the horizontal plate 90, the vertical plate 91, and the round pipe 10 are all provided with protrusions for connection (not shown in the attached drawings of the specification). These are all conventional choices for connecting components in the prior art, and bolts can be used for fastening. Further details will not be provided here.

[0086] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A silt trap elbow well seat, characterized by, The utility model relates to a sediment bend well seat, including: Well seat (1), install inlet pipe (2) and outlet pipe (3), and inlet pipe (2) and outlet pipe (3) form elbow structure on well seat (1) and are provided with silt chamber (4) inside, Baffle (5) is installed on the inner wall of silt chamber (4), and the water passage (6) is formed between the inner wall of silt chamber (4) and the end close to inlet pipe (2), and the oil storage area (7) is formed below baffle (5), Flow guide mechanism (8) is installed on the inner wall of well seat (1), and is communicated with inlet pipe (2) and silt chamber (4) through baffle (5), and is used for guiding the water of inlet pipe (2) directly to the lower end surface of baffle (5), Wherein, the installation height of inlet pipe (2) and outlet pipe (3) is higher than the installation height of baffle (5).

2. The silt trap elbow well seat of claim 1, wherein, The flow guide mechanism (8) comprises: Flow guide pipe (80) is vertically arranged through baffle (5) and is connected with baffle (5), and two are symmetrically arranged, Special-shaped flow guide plate (81) is connected on the inner wall of well seat (1) by being provided with support plate (82), and is used for uniformly leading the water of inlet pipe (2) into two flow guide pipes (80), Wherein, the support plate (82) is provided with through hole (83) corresponding to flow guide pipe (80).

3. The sediment bend well seat according to claim 2, wherein: The top of the special-shaped flow guide plate (81) is higher than the highest water level of the well seat (1).

4. The sediment bend well seat according to claim 2, wherein: The special-shaped flow guide plate (81) guides the water of the inlet pipe (2) into the flow guide pipe (80) in a direction tangential to the flow guide pipe (80).

5. The sediment bend well seat according to claim 2, wherein: The flow guide pipe (80) comprises a necked section (800) connected with the support plate (82), a throat section (801) connected with the baffle (5), and an expanded neck section (802) below the baffle (5).

6. The sediment bend well seat according to claim 1, wherein: The baffle (5) is inclined from the outlet pipe (3) to the side of the inlet pipe (2), and a protruding wing plate (50) is formed by extending downward at the lowest side.

7. The sediment bend well seat according to claim 1, wherein: The well seat (1) is provided with a weir structure (9) comprising a horizontal plate (90) and a vertical plate (91) on the inner wall at the connection with the outlet pipe (3); Wherein, the bottom end of the vertical plate (91) is provided with a plurality of water passing holes (92), and the water of the inlet pipe (2) can only pass through the water passing holes (92) or over the vertical plate (91) to flow out through the outlet pipe (3).

8. The silt trap elbow well seat of claim 1, wherein, Further comprising: A circular pipe (10) is vertically installed in the well seat (1), and the bottom end extends into the silt chamber (4) through the baffle (5), Wherein, the circular pipe (10) is close to the highest side of the baffle (5), and is used for accommodating the oil gauge.

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