Drainage time prediction device for small sedimentation tank

Abstract

The utility model provides a drainage time prediction device for a small sedimentation tank, which comprises a connecting pipe, the top end of the connecting pipe is connected with a mounting pipe, and the top end of the mounting pipe is connected with a flow meter; the two ends of the connecting pipe are connected with first flange plates, the connecting pipe is connected with the butt-joint pipe through the first flange plates, and a sealing mechanism is connected between the butt-joint pipe and the first flange plates. The gap between the second flange plate and the first flange plate can be reduced, and the gap generated when the device is in butt joint with the butt joint pipe of the sedimentation tank is increased.

Description

Technical Field

[0001] This utility model mainly relates to the technical field of sedimentation tanks, and specifically to a small sedimentation tank drainage time prediction device. Background Technology

[0002] Small sedimentation tanks in waterworks often need to be emptied and cleaned after a period of operation. Since it takes a long time for the tank to be emptied and workers can only enter the tank to clean it after there is basically no water left, it is necessary to predict the time required for discharge in advance to avoid losses to the company due to idle labor.

[0003] Small sedimentation tank drainage time prediction devices often monitor drainage flow through a flow meter. The flow meter is connected to the sedimentation tank via a flange. The gap between the two flanges can easily lead to leakage, thus affecting the prediction of the sedimentation tank drainage time. Utility Model Content

[0004] This utility model mainly provides a small sedimentation tank drainage time prediction device to solve the technical problems mentioned in the background art.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:

[0006] A small sedimentation tank drainage time prediction device includes a connecting pipe, the top end of which is connected to an installation pipe, and the top end of the installation pipe is connected to a flow meter.

[0007] The two ends of the connecting pipe are connected to the first flange, and the connecting pipe is connected to the connecting pipe through the first flange. A sealing mechanism is connected between the connecting pipe and the first flange.

[0008] Furthermore, a second flange is connected to the outside of the pipe body of the connecting pipe, and the second flange is connected to the first flange.

[0009] Furthermore, both the second flange and the first flange have through holes on their bodies, and the second flange and the first flange are connected by bolts.

[0010] Furthermore, the first flange has a first annular groove on its body, and a first sealing ring is embedded in the groove.

[0011] Furthermore, a second annular groove is provided on the outside of the first annular groove, the second annular groove is provided on the disc body of the first flange, and a second sealing ring is embedded in the groove of the second annular groove.

[0012] Furthermore, the first flange has multiple connecting grooves on its body, the grooves of which are connected to the first annular groove and the second annular groove, and a push rod is inserted into the groove of each connecting groove.

[0013] Furthermore, the first sealing ring, the second sealing ring on the side away from the connecting pipe, and both ends of the push rod are provided with chamfered edges.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] Firstly, this invention uses a first annular groove to accommodate a first sealing ring, so that when the second flange is mated with the first flange, the two discs squeeze the first sealing ring, thereby reducing the gap between the two discs. Similarly, a second annular groove accommodates a second sealing ring, so that when the second flange is mated with the first flange, the two discs squeeze the second sealing ring, thereby reducing the gap between the two discs. Through these methods, the gap between the second flange and the first flange is reduced, improving the gap generated when the device is mated with the sedimentation tank connecting pipe.

[0016] Secondly, this utility model accommodates the push rod through the connecting groove. Since the push rod has chamfered edges on both sides, when either the first sealing ring or the second sealing ring is squeezed by the second flange, the push rod can be pushed by the inclined surface formed by the chamfered edges. This push rod pushes the ring body of the first sealing ring or the second sealing ring that is not pushed by the second flange, thereby causing either the first sealing ring or the second sealing ring to actively push out, thereby further reducing the gap between the second flange and the first flange.

[0017] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a cross-sectional view of the present invention;

[0020] Figure 3 This is a cutaway view of the first flange of this utility model.

[0021] Figure 4 This is a broken view of the cross-sectional view of this utility model.

[0022] In the diagram: 10. Connecting pipe; 11. First flange; 111. First annular groove; 112. First sealing ring; 113. Second annular groove; 114. Second sealing ring; 115. Connecting groove; 116. Push rod; 12. Sealing mechanism; 13. Bolt; 20. Mounting pipe; 30. Flow meter; 40. Connecting pipe; 41. Second flange. Detailed Implementation

[0023] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the disclosure of the utility model more thorough and comprehensive.

[0024] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0026] For an example, please refer to the appendix. Figure 1-4 A small sedimentation tank drainage time prediction device includes a connecting pipe 10, the top end of which is connected to an installation pipe 20, and the top end of the installation pipe 20 is connected to a flow meter 30.

[0027] The two ends of the connecting pipe 10 are connected to the first flange 11. The connecting pipe 10 is connected to the connecting pipe 40 through the first flange 11. A sealing mechanism 12 is connected between the connecting pipe 40 and the first flange 11.

[0028] It should be noted that, in this embodiment, according to the hydraulic variable head unsteady flow volumetric venting formula, the discharge time is mainly related to the width and length of the pool, and the water depth before discharge.

[0029]

[0030] T—Sedimentation tank evacuation time, s

[0031] L—Length of the sedimentation tank, in meters

[0032] B—Width of sedimentation tank, in meters

[0033] H—Effective water depth of the sedimentation tank, in meters (the height of the sludge accumulation zone is not included).

[0034] U—Flow coefficient of cylindrical nozzle, taken as 0.82

[0035] The formula is converted to:

[0036]

[0037] Because the length, width, and diameter of the discharge pipe are fixed values ​​before each discharge, the time required for discharge can be predicted simply by monitoring the water depth in the pool each time using a level gauge.

[0038] For details, please refer to the appendix. Figure 1 and 2 The outside of the pipe body of the connecting pipe 40 is connected to a second flange 41, which is connected to the first flange 11.

[0039] Both the second flange 41 and the first flange 11 have through holes on their bodies, and the second flange 41 and the first flange 11 are connected by bolts 13.

[0040] It should be noted that in this embodiment, the butt joint 40 is connected to the first flange 11 via the second flange 41, thereby completing the connection between the butt joint 40 and the connecting pipe 10.

[0041] Furthermore, the second flange 41 is connected to the first flange 11 by bolts 13, thereby completing the connection between the second flange 41 and the first flange 11.

[0042] For details, please refer to the appendix. Figure 3 and 4 The first flange 11 has a first annular groove 111 on its disc body, and a first sealing ring 112 is embedded in the groove of the first annular groove 111.

[0043] The first annular groove 111 is provided with a second annular groove 113 on the outside. The second annular groove 113 is provided on the disc body of the first flange 11. A second sealing ring 114 is embedded in the groove of the second annular groove 113.

[0044] It should be noted that in this embodiment, the first sealing ring 112 is accommodated by the first annular groove 111 so that when the second flange 41 is mated with the first flange 11, the two discs squeeze the first sealing ring 112, thereby reducing the gap between the two discs through the first sealing ring 112.

[0045] Furthermore, the second sealing ring 114 is accommodated by the second annular groove 113 so that when the second flange 41 is mated with the first flange 11, the two discs squeeze the second sealing ring 114, thereby reducing the gap between the two discs through the second sealing ring 114.

[0046] For details, please refer to the appendix. Figure 3 and 4The first flange 11 has a plurality of connecting grooves 115 on its body. The groove of the connecting groove 115 is connected to the first annular groove 111 and the second annular groove 113. A push rod 116 is inserted into the groove of the connecting groove 115.

[0047] The first sealing ring 112, the second sealing ring 114 on the side away from the connecting pipe 40, and both ends of the push rod 116 are provided with chamfered edges;

[0048] It should be noted that in this embodiment, the push rod 116 is accommodated by the connecting groove 115. Since the push rod 116 has chamfered edges on both sides, when either the first sealing ring 112 or the second sealing ring 114 is squeezed by the second flange 41, the push rod 116 can be pushed by the inclined surface formed by the chamfered edges. This allows the push rod 116 to push the ring body of the first sealing ring 112 or the second sealing ring 114 that is not pushed by the second flange 41, thereby causing either the first sealing ring 112 or the second sealing ring 114 to actively push out, thereby further reducing the gap between the second flange 41 and the first flange 11.

[0049] The specific operation method of this utility model is as follows:

[0050] When using the small sedimentation tank drainage time prediction device, the connecting pipe 40 is connected to the first flange 11 through the second flange 41, thereby completing the connection between the connecting pipe 40 and the connecting pipe 10.

[0051] During the process of connecting the connecting pipe 10 and the mounting pipe 20, the first sealing ring 112 is accommodated by the first annular groove 111 so that when the second flange 41 is connected to the first flange 11, the two discs squeeze the first sealing ring 112, thereby reducing the gap between the two discs. The second sealing ring 114 is accommodated by the second annular groove 113 so that when the second flange 41 is connected to the first flange 11, the two discs squeeze the second sealing ring 114, thereby reducing the gap between the two discs.

[0052] The present invention has been described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvement made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, shall be within the protection scope of the present invention.

Claims

1. A small-sized sedimentation tank drainage time prediction device comprising a connection pipe (10), characterized by, The top end of the connecting pipe (10) is connected with a mounting pipe (20), and the top end of the mounting pipe (20) is connected with a flow meter (30); The two ends of the connecting pipe (10) are connected with first flanges (11), and the connecting pipe (10) is connected with a butt joint pipe (40) through the first flanges (11); the butt joint pipe (40) is connected with the first flanges (11) through a sealing mechanism (12).

2. The small-scale sedimentation tank drainage time prediction device according to claim 1, characterized by The pipe body of the butt joint pipe (40) is connected with second flanges (41), and the second flanges (41) are connected with the first flanges (11).

3. A small-scale sedimentation tank drainage time prediction device according to claim 2, characterized in that, The disc bodies of the second flanges (41) and the first flanges (11) are both provided with through holes, and the second flanges (41) and the first flanges (11) are connected through bolts (13).

4. The apparatus for predicting the drainage time of a small-scale sedimentation basin according to claim 1, wherein The disc body of the first flange (11) is provided with a first ring groove (111), and the groove body of the first ring groove (111) is embedded with a first sealing ring (112).

5. A small-scale sedimentation tank drainage time prediction device according to claim 4, characterized by The outer part of the first ring groove (111) is provided with a second ring groove (113), and the second ring groove (113) is arranged on the disc body of the first flange (11); the groove body of the second ring groove (113) is embedded with a second sealing ring (114).

6. The apparatus for predicting the drainage time of a small-scale sedimentation basin according to claim 1, wherein The disc body of the first flange (11) is provided with a plurality of communication grooves (115), the groove bodies of the communication grooves (115) are communicated with the first ring groove (111) and the second ring groove (113), and the groove bodies of the communication grooves (115) are inserted with push rods (116).

7. The apparatus for predicting the drainage time of a small-scale sedimentation basin according to claim 4, characterized in that, The side, away from the butt joint pipe (40), of the first sealing ring (112) and the second sealing ring (114) and the two ends of the push rod (116) are all provided with chamfered edges.

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