Device for continuously adjusting water outlet level of subsurface flow constructed wetland

Abstract

The utility model discloses a device for continuously adjusting the outlet water level of a subsurface flow constructed wetland, which comprises a water collecting well and a well lid, and the well lid is arranged at the top of the water collecting well; a Z-shaped flow guide pipe is arranged on one side of the water collecting well, a water outlet pipe is arranged on the other side of the water collecting well, a water level adjusting mechanism is arranged in the water collecting well and comprises a telescopic adjusting pipe, a lower vertical pipe and an upper vertical pipe, and a lower pipe opening of the telescopic adjusting pipe is fixed to the upper portion of the lower vertical pipe through a fixing hoop. An upper pipe opening of the telescopic adjusting pipe is fixed to the lower portion of the upper vertical pipe through a fixing hoop, and the top of the upper vertical pipe is fixedly connected with a bearing ring piece. According to the utility model, the water level inside the wetland can be lifted and adjusted through the water level change of the water-collecting well, the requirements on the water level change during the start and operation of the wetland are met, the water level inside the subsurface wetland can be continuously adjusted through the hand-cranking lifting device on the upper part of the well lid, and the device is simple, safe, flexible and convenient to operate, low in cost and easy to maintain and replace.

Description

Technical Field

[0001] The utility model relates to the technical field of artificial wetland sewage treatment, in particular to a device for continuously regulating outlet water level of a subsurface artificial wetland. Background Art

[0002] Subsurface artificial wetland is a common sewage treatment process system, which has the characteristics of good pollutant removal effect, low infrastructure investment cost, convenient operation and management, low operating cost, good landscape effect, etc. It is currently widely used in the purification of secondary effluent from sewage treatment plants, slightly polluted river water and similar polluted water bodies. The polluted water body is artificially distributed into the artificial wetland system composed of matrix, aquatic plants and microorganisms, and the water purification process is achieved through the synergistic effects of physics, chemistry and biology.

[0003] After the construction of the subsurface flow wetland, good operation and maintenance management is crucial to ensure that the water quality meets the discharge standards, and the water level control inside the wetland is one of the important tasks of operation and maintenance. In the early stage of subsurface flow wetland operation, plants at different growth stages have different requirements for water depth. The bed needs to be emptied during wetland maintenance. In order to give full play to the purification capacity of the wetland, the bed needs to be operated alternately between dry and wet. Therefore, the water level regulation of the subsurface flow artificial wetland is extremely important for the purification effect of pollutants.

[0004] At present, the water level regulation of subsurface artificial wetlands generally adopts the method of vertically connecting multiple sections of water outlet short pipes on the water outlet device, or vertically setting multiple valves of different heights, or setting vertical rotating risers, etc., and the water level inside the wetland is regulated by splicing different numbers of short pipes, opening valves of different heights, or adjusting the inclination angle of the rotating riser. This type of water level regulation method can only achieve a few specific heights of operating water levels in a jumpy manner, and the water level regulation is limited, or although the water level can be continuously regulated, the operator needs to enter the water collection well to operate, which has high labor intensity and great safety risks. Therefore, it is of great practical significance to study a water outlet device with simple structure, convenient operation, and continuous water level regulation. Utility Model Content

[0005] The purpose of the utility model is to overcome the above technical problems and to propose a device for continuously adjusting the outlet water level of a submerged flow artificial wetland, so as to solve the problems of discontinuous water level adjustment, cumbersome operation and high safety risk in the existing water level adjustment method.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A device for continuously regulating the outlet water level of a submerged flow artificial wetland is arranged at one side of the submerged flow artificial wetland, comprising a water collection well and a well cover, wherein the well cover is arranged at the top of the water collection well; a Z-shaped flow guide pipe is arranged at one side of the water collection well, and a water outlet pipe is arranged at the other side of the water collection well; a water level regulating mechanism is arranged inside the water collection well, an inlet of the Z-shaped flow guide pipe is connected to the water collection well, and an outlet of the Z-shaped flow guide pipe is connected to the water level regulating mechanism, and the top of the water level regulating mechanism is higher than the top of the well cover;

[0008] The water level regulating mechanism comprises a telescopic regulating tube, a lower riser and an upper riser, the lower pipe opening of the telescopic regulating tube is fixed to the upper part of the lower riser through a fixing hoop, the upper pipe opening of the telescopic regulating tube is fixed to the lower part of the upper riser through a fixing hoop, and a load-bearing ring is fixedly connected to the top of the upper riser.

[0009] As a preferred embodiment, the load-bearing ring is connected to a two-way self-locking hand winch located on the upper part of the manhole cover through a rope, and the load-bearing ring is evenly provided with a plurality of rope fixing holes, and the rope is tied in the rope fixing holes; a handle is provided on the two-way self-locking hand winch.

[0010] As a preferred embodiment, the load-bearing ring is connected to a counterweight gravel bag through a traction rope, the load-bearing ring is symmetrically provided with a plurality of traction rope fixing holes, the traction rope is tied in the traction rope fixing holes, and the lower riser is connected to the Z-shaped guide pipe through an elbow.

[0011] As a preferred embodiment, one end of the Z-shaped guide pipe passes through the side wall of the water collection well and extends into the interior of the submerged flow artificial wetland, and is connected to the perforated water collection pipe through a tee pipe. The perforated water collection pipe is located at the bottom of the inner side of the submerged flow artificial wetland.

[0012] As a preferred embodiment, the central axes of the water outlet pipe, the perforated water collecting pipe and the upper horizontal pipe section of the Z-shaped flow guide pipe are all located in the same horizontal plane.

[0013] As a preferred embodiment, central axes of the telescopic adjustable tube, the lower riser, the upper riser and the twisted rope are located on the same vertical line.

[0014] As a preferred embodiment, the twisted rope is marked with adjustment scales, and the adjustment scales increase from top to bottom.

[0015] As a preferred embodiment, the bottom of the water collection well is lower than the bottom of the subsurface flow artificial wetland.

[0016] As a preferred embodiment, after the length of the telescopic adjustable tube is compressed, the lowest position that the top of the upper riser can reach is located in the same horizontal plane as the central axis of the outlet pipe, the perforated water collecting pipe and the upper horizontal pipe section of the Z-shaped guide pipe.

[0017] As a preferred embodiment, after the length of the telescopic adjustable tube is stretched, the highest position that the top of the upper riser can reach is 10-20 cm above the wetland filler layer.

[0018] Compared with the prior art, the utility model has the following advantages:

[0019] Firstly, the utility model provides a device for continuously adjusting the water level of a submerged flow artificial wetland. By arranging a water level adjustment mechanism in the water collection well, the water level inside the wetland can be arbitrarily and continuously adjusted between the required maximum water level and the minimum water level (bed emptying), thereby making the submerged flow wetland operate efficiently and flexibly. When adjusting the water level, the operator does not need to enter the water collection well. The water level inside the wetland can be adjusted by shaking the handle of the two-way self-locking hand-cranked winch on the top of the well cover. The operation is convenient, efficient and safe, the structure is simple, the cost is low, and it is easy to repair and replace.

[0020] Secondly, the internal water level of the water collection well of the submerged flow artificial wetland continuous water level adjustment device of the utility model changes with the rise and fall of the top pipe mouth of the upper riser. The water collection well and the submerged flow wetland are connected by a Z-shaped guide pipe. According to the principle of communicating vessels, the internal water level of the submerged flow wetland is the same as the internal water level elevation of the water collection well 2. The internal water level of the submerged flow wetland can be controlled by changing the vertical position of the top pipe mouth of the upper riser.

[0021] Thirdly, the twisted rope of the submerged flow artificial wetland continuous water level adjustment device of the utility model is marked with adjustment scales, and the adjustment scales increase from top to bottom. In order to make the operator more intuitive during the adjustment operation and to accurately adjust the water level without going down the well, the scale is marked on the twisted rope to accurately display the current opening height position of the top of the upper riser, that is, to display the internal water level of the submerged flow artificial wetland, without opening the well cover and without the use of auxiliary measuring tools, thereby reducing the labor intensity of the operator and improving labor efficiency and operational safety.

[0022] Fourthly, the length of the telescopic adjustment pipe of the device for continuously adjusting the outlet water level of the submerged flow artificial wetland of the utility model should be able to meet the requirement that after compression, the lowest position that the top pipe mouth of the upper riser can reach is in the same horizontal plane as the central axis of the outlet pipe, the perforated water collecting pipe and the upper horizontal pipe section of the Z-shaped diversion pipe. The length of the telescopic adjustment pipe should also meet the requirement that after stretching, the highest position that the top pipe mouth of the upper riser can reach is 10-20cm above the wetland filling layer. The specific value is determined according to the highest water level required for the operation of the artificial wetland, so that the internal water level of the submerged flow artificial wetland can be arbitrarily adjusted between the highest water level required for operation and the lowest water level (bed emptying). BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of a device for continuously adjusting the outlet water level of a subsurface artificial wetland according to the utility model;

[0024] Figure 2 It is a top plan view schematic diagram of a device for continuously adjusting the outlet water level of a subsurface artificial wetland of the utility model;

[0025] Figure 3 This is a schematic diagram of the three-dimensional structure of the water level regulating mechanism in the utility model;

[0026] In the figure: 1-subsurface artificial wetland; 2-water collection well; 3-well cover; 4-Z-shaped guide pipe; 5-water level adjustment mechanism; 501-retractable adjustment pipe; 502-lower riser; 503-upper riser; 504-load-bearing ring; 505-fixing hoop; 506-weighted gravel bag; 507-twist rope fixing hole; 508-traction rope fixing hole; 509-twist rope; 510-two-way self-locking hand winch; 511-handle; 512-traction rope; 6-elbow; 7-perforated water collection pipe; 8-water outlet pipe; 9-tee pipe. DETAILED DESCRIPTION

[0027] The following is a detailed description of the implementation of the present invention in conjunction with implementation cases, but they do not constitute a limitation of the present invention and are only examples. At the same time, the advantages of the present invention will become clearer and easier to understand through the description.

[0028] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, in the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0029] like Figure 1-3 As shown, a device for continuously regulating the outlet water level of a submerged flow artificial wetland is arranged on one side of a submerged flow artificial wetland 1, and includes a water collection well 2, a well cover 3, a Z-shaped guide pipe 4 and an outlet pipe 8 respectively arranged on the left and right sides of the middle of the water collection well 2, the right end of the Z-shaped guide pipe 4 is connected to the water level regulating mechanism 5 through an elbow 6, the well cover 3 is arranged on the top of the water collection well 2, and the water level regulating mechanism 5 is located inside the water collection well 2, and the top is higher than the top of the well cover 3.

[0030] The water level regulating mechanism 5 comprises a telescopic regulating pipe 501, a lower riser 502 and an upper riser 503. The lower pipe opening of the telescopic regulating pipe 501 is fixed to the upper part of the lower riser 502 by a fixing hoop 505. The upper pipe opening of the telescopic regulating pipe 501 is fixed to the lower part of the upper riser 503 by a fixing hoop 505. The top of the upper riser 503 is fixedly connected with a load-bearing ring piece 504. The load-bearing ring piece 504 is connected to the bidirectional part located on the upper part of the manhole cover 3 by a rope 509. A self-locking hand-cranked winch 510 is connected, the load-bearing ring piece 504 is evenly provided with four rope fixing holes 507, the rope 509 is tied in the rope fixing hole 507, the load-bearing ring piece 504 is connected with a counterweight gravel bag 506 through a traction rope 512, the load-bearing ring piece 504 is symmetrically provided with two traction rope fixing holes 508, the traction rope 512 is tied in the traction rope fixing hole 508, and the lower riser 502 is connected to the Z-shaped guide pipe 4 through an elbow 6.

[0031] Specifically, the handle 511 of the two-way self-locking hand-cranked winch 510 is shaken in one direction, and the load-bearing ring piece 504 drives the upper riser 503 and the upper pipe mouth of the telescopic adjustable pipe 501 to rise vertically under the pulling of the rope 509, and the shaking of the handle 511 is stopped, and the rope automatically locks the height, and the handle 511 is shaken in the opposite direction, and the load-bearing ring piece 504 drives the upper riser 503 and the upper pipe mouth of the telescopic adjustable pipe 501 to drop vertically under the driving of the counterweight gravel bag 506, and the shaking of the handle 511 is stopped, and the rope automatically locks the height, and the water level inside the water collection well 2 changes with the rise and fall of the top pipe mouth of the upper riser 503. The water collection well 2 is connected to the submerged flow artificial wetland 1 through the Z-shaped guide pipe 4. According to the principle of communicating vessels, the water level inside the submerged flow artificial wetland 1 is the same as the water level inside the water collection well 2, and the water level inside the submerged flow artificial wetland 1 can be controlled by changing the vertical position of the top pipe mouth of the upper riser 503.

[0032] Specifically, when adjusting the water level, the operator does not need to open the manhole cover 3. The water level adjustment of the subsurface artificial wetland 1 can be completed by shaking the handle 511 of the two-way self-locking hand-cranked winch 510. The operation is convenient, efficient and safe, the structure is simple, the cost is low, and it is easy to repair and replace.

[0033] Specifically, the left end of the Z-shaped diversion pipe 4 passes through the left side of the water collection well 2 and extends to the interior of the submerged flow artificial wetland 1, and is connected to the perforated water collection pipe 7 through the tee pipe 9. The perforated water collection pipe 7 is located at the bottom of the inner side of the submerged flow artificial wetland 1. The central axes of the outlet pipe 8, the perforated water collection pipe 7 and the upper horizontal pipe section of the Z-shaped diversion pipe 4 are all located in the same horizontal plane. When the top pipe mouth of the upper riser 503 drops to be flush with the central axes of the outlet pipe 8, the perforated water collection pipe 7 and the upper horizontal pipe section of the Z-shaped diversion pipe 4, the submerged flow artificial wetland 1 can be emptied.

[0034] Specifically, the central axes of the telescopic adjustment tube 501, the lower riser 502, the upper riser 503 and the twisted rope 509 are located on the same vertical line.

[0035] Specifically, the rope 509 is marked with adjustment scales, which increase from top to bottom. In order to make the operator more intuitive during the adjustment operation and to accurately adjust the water level without going down the well, the scale is marked on the rope 509 to accurately display the current height position of the top opening of the upper riser 503, that is, to display the internal water level of the subsurface artificial wetland 1. There is no need to open the well cover 3 or use auxiliary measuring tools, thereby reducing the labor intensity of the operator and improving labor efficiency and operational safety.

[0036] Specifically, the bottom of the water collection well 2 is lower than the bottom of the submerged flow artificial wetland 1, and the length of the telescopic adjustable tube 501 should be able to ensure that the lowest position that the top pipe opening of the upper riser 503 can reach after compression is in the same horizontal plane as the central axis of the outlet pipe 8, the perforated water collection pipe 7 and the upper horizontal pipe section of the Z-shaped diversion pipe 4.

[0037] The length of the retractable adjustable tube 501 should also be able to ensure that after stretching, the highest position that the top pipe opening of the upper riser 503 can reach is 10-20 cm above the wetland filler layer. The specific value is determined according to the maximum water level required for the operation of the artificial wetland, so that the internal water level of the subsurface artificial wetland 1 can be arbitrarily adjusted between the maximum water level required for operation and the minimum water level (bed emptying).

[0038] Finally, it should be noted that the above 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 with 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, and the rest not described in detail shall belong to the prior art.

Claims

1. A device for continuously adjusting the outlet water level of a subsurface artificial wetland, arranged on one side of a subsurface artificial wetland (1), characterized in that: The invention comprises a water collecting well (2) and a well cover (3), wherein the well cover (3) is arranged at the top of the water collecting well (2); a Z-shaped flow guide pipe (4) is arranged on one side of the water collecting well (2), and a water outlet pipe (8) is arranged on the other side of the water collecting well (2); a water level regulating mechanism (5) is arranged inside the water collecting well (2); the inlet of the Z-shaped flow guide pipe (4) is connected to the water collecting well (2), and the outlet of the Z-shaped flow guide pipe (4) is connected to the water level regulating mechanism (5); and the top of the water level regulating mechanism (5) is higher than the top of the well cover (3); The water level regulating mechanism (5) comprises a telescopic regulating tube (501), a lower vertical tube (502) and an upper vertical tube (503); the lower tube opening of the telescopic regulating tube (501) is fixed to the upper part of the lower vertical tube (502) through a fixing hoop (505); the upper tube opening of the telescopic regulating tube (501) is fixed to the lower part of the upper vertical tube (503) through a fixing hoop (505); and a load-bearing ring piece (504) is fixedly connected to the top of the upper vertical tube (503).

2. The device for continuously adjusting the outlet water level of a subsurface artificial wetland according to claim 1, characterized in that: The load-bearing ring piece (504) is connected to a two-way self-locking hand-cranked winch (510) located on the upper part of the manhole cover (3) through a rope (509); the load-bearing ring piece (504) is evenly provided with a plurality of rope fixing holes (507), and the rope (509) is tied in the rope fixing holes (507); and a handle (511) is provided on the two-way self-locking hand-cranked winch (510).

3. The device for continuously adjusting the outlet water level of a subsurface artificial wetland according to claim 2, characterized in that: The load-bearing ring piece (504) is connected to a weighted gravel bag (506) via a traction rope (512); the load-bearing ring piece (504) is symmetrically provided with a plurality of traction rope fixing holes (508); the traction rope (512) is tied into the traction rope fixing holes (508); and the lower riser (502) is connected to the Z-shaped flow guide pipe (4) via an elbow (6).

4. The device for continuously adjusting the outlet water level of a subsurface artificial wetland according to claim 3, characterized in that: One end of the Z-shaped flow guide pipe (4) passes through the side wall of the water collection well (2) and extends to the interior of the submerged flow artificial wetland (1), and is connected to the perforated water collection pipe (7) through a three-way pipe (9), and the perforated water collection pipe (7) is located at the bottom of the inner side of the submerged flow artificial wetland (1).

5. The device for continuously adjusting the outlet water level of a subsurface artificial wetland according to claim 4, characterized in that: The central axes of the water outlet pipe (8), the perforated water collecting pipe (7) and the upper horizontal pipe section of the Z-shaped flow guide pipe (4) are all located in the same horizontal plane.

6. The device for continuously adjusting the outlet water level of a subsurface artificial wetland according to claim 5, characterized in that: The central axes of the telescopic adjustable tube (501), the lower riser (502), the upper riser (503) and the twisted rope (509) are located on the same vertical line.

7. The device for continuously adjusting the outlet water level of a subsurface artificial wetland according to claim 6, characterized in that: The twisted rope (509) is marked with adjustment scales, which increase in sequence from top to bottom.

8. The device for continuously adjusting the outlet water level of a subsurface artificial wetland according to claim 7, characterized in that: The bottom of the water collection well (2) is lower than the bottom of the subsurface artificial wetland (1).

9. The device for continuously adjusting the outlet water level of a subsurface artificial wetland according to claim 8, characterized in that: After the length of the telescopic adjustable pipe (501) is compressed, the lowest position that the top of the upper riser (503) can reach is located in the same horizontal plane as the central axis of the water outlet pipe (8), the perforated water collecting pipe (7) and the upper horizontal pipe section of the Z-shaped flow guide pipe (4).

10. The device for continuously adjusting the outlet water level of a subsurface artificial wetland according to claim 9, characterized in that: After the length of the telescopic adjustable tube (501) is stretched, the highest position that the top of the upper riser (503) can reach is 10-20 cm above the wetland filler layer.

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