Water inlet uniform water distribution tank device of two-stage water distribution circumferential-inlet circumferential-outlet auxiliary flow sedimentation tank

Abstract

The utility model relates to a two-stage water distribution circumferential-inlet circumferential-outlet auxiliary flow sedimentation tank water inlet uniform water distribution tank device which comprises a first-stage water distribution tank, a second-stage water distribution tank, a partition wall, water distribution holes, a secondary sedimentation tank and a water outlet tank, wherein the first-stage water distribution tank is annularly distributed on the outer ring of the second-stage water distribution tank; a partition wall is fixedly arranged between the first-stage water distribution tank and the second-stage water distribution tank; water distribution holes are uniformly and annularly distributed in the bottom of the secondary water distribution tank, and water is distributed to a secondary sedimentation tank arranged below the secondary water distribution tank through the water distribution holes; the water outlet tank is annularly distributed between the secondary water distribution tank and the secondary sedimentation tank; and a spacing area is arranged between the outer wall of the water outlet tank and the inner wall of the secondary water distribution tank. The device is uniform in water distribution, convenient to construct and flexible to adjust.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of sedimentation tank, specifically to the two -stage water distribution's week in week out auxiliary flow sedimentation tank water inlet uniform water distribution tank device. BACKGROUND

[0002] Sedimentation tank is a kind of traditional water treatment structure that the heavy side of particle or flocculation is removed suspended solids in water.Pressure, vertical flow and radial flow can be divided into three forms according to the direction of water flow.Auxiliary flow sedimentation tank has the advantages of good sedimentation effect, high surface load and large daily treatment capacity, and is widely used in sedimentation process flow of large and medium-sized sewage treatment plant.Peripheral water distribution tank usually requires uneven distribution of gradient section water distribution hole to ensure the uniformity of peripheral water distribution.

[0003] The defects of prior art are:

[0004] In the engineering practice of prior art, it is difficult to accurately measure the size of gradient section and the size and uneven distribution of water distribution hole, and the construction difficulty and precision are difficult to realize, so that most of the week in week out auxiliary flow sedimentation tank is unevenly distributed, which affects its treatment effect, and further increases the burden of subsequent treatment process. SUMMARY

[0005] The utility model provides two -stage water distribution's week in week out auxiliary flow sedimentation tank water inlet uniform water distribution tank device for the above problems, and its purpose is to make water distribution uniform, construction convenient and adjustment flexible.

[0006] To solve the above problems, the technical scheme provided by the utility model is:

[0007] The two -stage water distribution's week in week out auxiliary flow sedimentation tank water inlet uniform water distribution tank device includes a primary water distribution tank, a secondary water distribution tank, a partition wall, a water distribution hole, a secondary sedimentation tank and a water outlet tank, wherein: the primary water distribution tank is arranged around the outer circle of the secondary water distribution tank;The partition wall is fixedly arranged between the primary water distribution tank and the secondary water distribution tank to separate the primary water distribution tank and the secondary water distribution tank;The bottom of the secondary water distribution tank is uniformly arranged with the water distribution hole, and the water distribution hole is arranged in the secondary sedimentation tank below;The water outlet tank is arranged between the secondary water distribution tank and the secondary sedimentation tank;The outer wall of the water outlet tank and the inner wall of the secondary water distribution tank are provided with a spacing area.

[0008] Preferably, the top of the partition wall is fixedly provided with an adjustable weir plate;The adjustable weir plate adjusts the elevation of weir plate according to the actual water distribution amount.

[0009] Preferably, the adjustable weir plate is a triangular weir plate with a vertical long strip-shaped adjusting groove below; the adjustable weir plate is fixedly installed on the corresponding position of the weir plate elevation of the partition wall through the adjusting groove by the installation bolt.

[0010] Preferably, the elevation of the adjustable weir plate is a gradient elevation structure; the slope of the gradient elevation structure is consistent with the hydraulic slope of the primary distribution tank.

[0011] Preferably, the bottom of the secondary distribution tank near the side of the center of the secondary sedimentation tank is fixedly provided with a water baffle for guiding the water flow from the bottom of the tank to the center.

[0012] Preferably, the inner wall of the water outlet tank is fixedly provided with a scum baffle above the contact surface of the secondary sedimentation tank for filtering floating objects.

[0013] Preferably, the top of the contact surface of the secondary sedimentation tank is fixedly provided with an adjustable weir plate for adjusting the uniform water outlet of the secondary sedimentation tank to the water outlet tank.

[0014] Preferably, the top of the outer wall of the water outlet tank is fixedly provided with the adjustable weir plate for adjusting the uniform water outlet of the water outlet tank.

[0015] The utility model has the following advantages compared with the prior art:

[0016] 1. Since the utility model divides the traditional distribution tank into two levels, the first level adopts an adjustable weir plate, and the fixed-point water inlet is uniformly distributed to the secondary distribution tank through the adjustable weir plate of the primary distribution tank, and then the water inlet is uniformly distributed to the secondary sedimentation tank through the uniformly distributed water distribution holes of the secondary distribution tank, thereby overcoming the problem of uneven distribution caused by the theoretical calculation and construction precision of the traditional gradient distribution tank, and achieving uniform distribution.

[0017] 2. Since the cross section of the two-level distribution tank of the utility model is constant, it is convenient to solve the construction difficulties such as field lofting and formwork, and there is no construction precision problem, so that the construction is convenient and the quality is easy to guarantee.

[0018] 3. Since the utility model is provided with a primary distribution tank adjustable weir plate, the weir plate elevation can be adjusted according to the actual water distribution in the subsequent operation stage, the uniformity of the primary distribution is ensured, the overall uniform distribution of the sedimentation tank is ensured, and the problems of fixed water distribution characteristics of the traditional distribution tank and poor adaptability to water quantity changes are solved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a standard cross section schematic view of the distribution tank device of the specific embodiment of the utility model;

[0020] Figure 2The specific embodiment of the utility model discloses adjustable weir plate structure schematic diagram.

[0021] Among them: 1. primary water distribution tank, 2. secondary water distribution tank, 3. partition, 4. water distribution hole, 5. secondary sedimentation tank, 6. outlet tank, 7. interval area, 8. adjustable weir plate, 9. water retaining apron, 10. scum baffle, 8.1. adjusting groove DETAILED DESCRIPTION

[0022] The utility model is further illustrated below in combination with specific embodiments, and it should be understood that these embodiments are only used for illustrating the utility model and are not used for limiting the scope of the utility model, and after reading the utility model, various equivalent modifications of the utility model made by those skilled in the art all fall within the range defined in the claims attached to the present application.

[0023] As Figure 1 Shown, two-stage water distribution's week in week out auxiliary flow sedimentation tank water even water distribution tank device, contain primary water distribution tank 1, secondary water distribution tank 2, partition 3, water distribution hole 4, secondary sedimentation tank 5, outlet tank 6, wherein: primary water distribution tank 1 ring is distributed in the outer circle of secondary water distribution tank 2;Primary water distribution tank 1 and secondary water distribution tank 2 between fixedly arranged with the partition 3 for separating primary water distribution tank 1 and secondary water distribution tank 2;The bottom of secondary water distribution tank 2 is evenly ringed with water distribution hole 4, and is distributed to the secondary sedimentation tank 5 arranged below through the water distribution hole 4;Outlet tank 6 is ringed between secondary water distribution tank 2 and secondary sedimentation tank 5;The outer wall of outlet tank 6 and the inner wall of secondary water distribution tank 2 are provided with interval area 7.

[0024] In the specific embodiment, the width of the primary water distribution tank 1 is 0.35m;The width of the secondary water distribution tank 2 is 0.4m;The width of the outlet tank 6 is 0.4m;The width of the interval area 7 is 0.4m.

[0025] It should be noted that the top of the partition 3 is fixedly provided with an adjustable weir plate 8;The adjustable weir plate 8 adjusts the weir plate elevation according to the actual water distribution amount.

[0026] It should be further pointed out that the adjustable weir plate 8 is a triangular weir plate provided with a vertical strip-shaped adjusting groove 8.1 below;When the adjustable weir plate 8 is installed, the adjustable weir plate 8 is fixedly installed to the corresponding position of the weir plate elevation on the partition 3 through the adjusting groove 8.1 by the mounting bolt.

[0027] It should be further pointed out that the elevation of the adjustable weir plate 8 is a gradually changing elevation structure;The slope of the gradually changing elevation structure is consistent with the hydraulic slope of the primary water distribution tank 1.

[0028] It should be further pointed out that the hydraulic slope of the primary water distribution tank 1 can be expressed according to formula 1:

[0029] Q=2Av=2B1H1R 2 / 3 i 1 / 2 / n (1)

[0030] Wherein: Q is used to represent the water distribution; A is used to represent the overflow section of the first water distribution tank 1; v is used to represent the flow rate; B1 is used to represent the width of the first water distribution tank 1; H1 is used to represent the first water distribution tank level; R is used to represent the hydraulic radius of the first water distribution tank 1; i is used to represent the hydraulic slope of the first water distribution tank 1; n is used to represent the roughness coefficient of the first water distribution tank 1.

[0031] In the specific embodiment, the flow rate v is not less than 0.3 m / s.

[0032] In the specific embodiment, the height of the adjustable weir plate 8 is 0.37 m, the inverted triangular notch at the top of the adjustable weir plate 8 is 0.1 m high, the top notch width of the inverted triangular notch is 0.2 m, and the spacing between adjacent two inverted triangular notches is 0.1 m; the length of the adjusting groove 8.1 is 0.15 m; the distance from the bottom of the adjusting groove 8.1 to the adjustable weir plate 8 is 0.05 m.

[0033] It should be noted that the bottom of the second water distribution tank 2 near the side of the center of the secondary sedimentation tank 5 is fixedly provided with a water baffle 9 for guiding the water flow from the bottom of the tank to the center.

[0034] In the specific embodiment, the distribution spacing of the water distribution hole 4 is 1 m to 1.5 m; the hole diameter of the water distribution hole 4 is 0.1 m to 0.15 m; and the number of the water distribution hole 4 is expressed by formula 2:

[0035] n = πD / B (2)

[0036] Wherein: n is used to represent the number of the water distribution hole 4; D is used to represent the ring cloth diameter of the water distribution hole 4; and B is used to represent the distribution spacing of the water distribution hole 4.

[0037] The single water distribution hole flow is expressed by formula 3:

[0038]

[0039] Wherein: q is used to represent the single water distribution hole flow; μ is used to represent the flow coefficient; A' is used to represent the orifice section; g is used to represent the gravitational acceleration; H0 is used to represent the difference between the second water distribution tank level H2 and the secondary sedimentation tank level H4; and Q is used to represent the water distribution.

[0040] In the specific embodiment, the length of the water baffle 9 is 0.5 m.

[0041] It should be noted that the upper part of the contact surface between the inner wall of the water outlet groove 6 and the secondary sedimentation tank 5 is fixedly provided with a scum baffle 10 for filtering floating objects.

[0042] It needs to be further explained that the top of the contact surface of the inner wall of the water outlet groove 6 and the secondary sedimentation tank 5 is fixedly provided with an adjustable weir plate 8 for adjusting the uniform water outlet of the secondary sedimentation tank 5 to the water outlet groove 6.

[0043] It needs to be further explained that the top of the outer wall of the water outlet groove 6 is fixedly provided with an adjustable weir plate 8 for adjusting the uniform water outlet of the water outlet groove 6 to the outside.

[0044] It needs to be explained that the primary water distribution groove liquid level H1 is a gradually changing liquid level along the way; the secondary water distribution groove liquid level H2 is a fixed liquid level; the water outlet groove liquid level H3 is a gradually changing liquid level along the way; and the secondary sedimentation tank liquid level H4 is a fixed liquid level.

[0045] It needs to be explained that the working principle of the utility model is as follows: water enters the primary water distribution groove 1 from the sedimentation tank inlet pipe; the primary water distribution groove 1 uniformly distributes water to the secondary water distribution groove 2 through the adjustable weir plate 8; after the secondary water distribution groove 2 distributes water to the secondary sedimentation tank 5 through the uniform distribution holes at the bottom, the water flow flows from the bottom of the tank to the center under the action of the peripheral water retaining apron 9, and returns to the water outlet groove 6 around the upper part, thereby completing the sedimentation function of the secondary sedimentation tank 5.

[0046] In the detailed description above, various features are combined together in a single embodiment to simplify the disclosure. This disclosure approach should not be interpreted as reflecting an intention that embodiments of the claimed subject matter require more features than are expressly stated in each claim. On the contrary, the utility model is in a state of less than all the features of the disclosed single embodiment, as reflected in the appended claims. Therefore, the appended claims are hereby expressly incorporated into the detailed description, in which each claim alone is a separate preferred embodiment of the utility model.

[0047] In order for any person skilled in the art to be able to implement or use the utility model, the above discloses the disclosed embodiments. For those skilled in the art, various modifications of these embodiments are obvious, and the general principles defined herein can also be applied to other embodiments without departing from the spirit and protection scope of the disclosure. Therefore, the disclosure is not limited to the embodiments given herein, but is consistent with the broadest scope of the principles and novel features disclosed in the present disclosure.

[0048] The foregoing description includes examples of one or more embodiments. Of course, it is not possible to describe all possible combinations of components or methods for the purposes of describing the above embodiments, but one of ordinary skill in the art will recognize that the various embodiments may be further combined and arranged. Therefore, the embodiments described herein are intended to encompass all such changes, modifications and variations that fall within the scope of the appended claims. Furthermore, to the extent the term "comprising" is used in the specification or claims, the term is intended to be encompassed in a manner similar to the term "including," as explained in terms of "including," used as a transitional word in the claims. Furthermore, any use of the term "or" in the specification of the claims is intended to mean a "non-exclusive or."

[0049] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only a specific implementation method of the utility model and is not intended to limit the scope of protection of the utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.

Claims

1. A two-stage water distribution circumferential inlet and outlet auxiliary flow sedimentation tank water uniform distribution trough device, characterized by: It comprises a primary water distribution trough (1), a secondary water distribution trough (2), a partition wall (3), a water distribution hole (4), a secondary sedimentation tank (5), and a water outlet trough (6), wherein: The primary water distribution trough (1) is arranged around the outer ring of the secondary water distribution trough (2); a partition wall (3) for separating the primary water distribution trough (1) from the secondary water distribution trough (2) is fixedly provided between the primary water distribution trough (1) and the secondary water distribution trough (2); The bottom of the secondary water distribution trough (2) is evenly distributed with the water distribution holes (4), and water is distributed to the secondary sedimentation tank (5) located below through the water distribution holes (4); The water outlet trough (6) is distributed between the secondary water distribution trough (2) and the secondary sedimentation tank (5); a spacer area (7) is provided between the outer wall of the water outlet trough (6) and the inner wall of the secondary water distribution trough (2).

2. The two-stage water distribution circumferential inlet and outlet auxiliary flow sedimentation tank water uniform distribution trough device according to claim 1 is characterized in that: An adjustable weir plate (8) is fixedly provided on the top of the partition wall (3); the adjustable weir plate (8) adjusts the weir plate elevation according to the actual water distribution volume.

3. The two-stage water distribution circumferential inlet and outlet auxiliary flow sedimentation tank water uniform distribution trough device according to claim 2, characterized in that: The adjustable weir plate (8) is a triangular weir plate with a vertical long strip adjustment groove (8.1) provided at the bottom; when the adjustable weir plate (8) is installed, the adjustable weir plate (8) is fixed to a position corresponding to the weir plate elevation on the partition wall (3) by means of mounting bolts passing through the adjustment groove (8.1).

4. The two-stage water distribution circumferential inlet and outlet auxiliary flow sedimentation tank water uniform distribution trough device according to claim 3, characterized in that: The elevation of the adjustable weir plate (8) is a gradually changing elevation structure; the slope of the gradually changing elevation structure is consistent with the hydraulic gradient of the first-level water distribution trough (1).

5. The two-stage water distribution circumferential inlet and outlet auxiliary flow sedimentation tank water uniform distribution trough device according to claim 4, characterized in that: A water retaining skirt (9) for guiding water flow from the bottom of the tank to the center is provided on the bottom fixed ring of the secondary water distribution trough (2) on one side below the water distribution hole (4) and close to the center of the secondary sedimentation tank (5).

6. The two-stage water distribution circumferential inlet and outlet auxiliary flow sedimentation tank water uniform distribution trough device according to claim 5, characterized in that: A scum baffle (10) for filtering floating objects is fixedly provided above the contact surface between the inner wall of the water outlet trough (6) and the secondary sedimentation tank (5).

7. The two-stage water distribution circumferential inlet and outlet auxiliary flow sedimentation tank water uniform distribution trough device according to claim 6, characterized in that: The adjustable weir plate (8) for regulating the uniform discharge of water from the secondary sedimentation tank (5) to the water outlet trough (6) is fixedly provided on the top of the contact surface between the inner wall of the water outlet trough (6) and the secondary sedimentation tank (5).

8. The two-stage water distribution circumferential inlet and outlet auxiliary flow sedimentation tank water uniform distribution trough device according to claim 7, characterized in that: The top of the outer wall of the water outlet trough (6) is fixedly provided with the adjustable weir plate (8) for adjusting the water outlet trough (6) to uniformly discharge water outwards.

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