Gate device for realizing uniform flow distribution of irregular constructed wetland unit

Abstract

The utility model discloses a gate device for realizing uniform flow distribution of an irregular artificial wetland unit, which comprises a water distribution channel enclosed by channel walls, and a channel wall partition wall is arranged in the water distribution channel and divides the water distribution channel into a main water distribution channel and a distribution water channel; at least one water inlet gate is installed on the channel wall separating wall, each water inlet gate comprises a wooden gate plate and a stainless steel plate, the wooden gate plates are clamped between the channel wall separating walls, the stainless steel plates are installed on the wooden gate plates, and the height of the stainless steel plates extending out of the wooden gate plates can be adjusted; a perforated water distribution pipe is arranged at the bottom of the canal wall, close to the constructed wetland side, of the water distribution canal. The fixed wood gate and the adjustable stainless steel plate are combined, the gate height of the water inlet gate can be flexibly adjusted according to the change of water level fluctuation in the water distribution process, and the balance of environmental protection, energy conservation and functional requirements is achieved through water distribution.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of water distribution uniformity of artificial wetland, especially relates to a gate device for realizing irregular artificial wetland unit flow uniform distribution. BACKGROUND

[0002] As a new type of ecological sewage treatment technology, artificial wetland has unique advantages in adapting to the development trend of small and diversified sewage treatment, and has a wide application in treating slightly polluted water, tail water of sewage treatment plant and other sewage. Artificial wetland has good effect on water quality improvement, but there are some problems in its application. In previous studies, corresponding countermeasures have been put forward for the problems of easy clogging, unstable nitrogen and phosphorus removal effect, large occupation area and easy seasonal influence of artificial wetland, but few attention has been paid to the influence of water distribution uniformity on the good operation of artificial wetland from the aspect of hydraulics. The existing gate facilities have the problems of low flow control precision, high price and energy consumption, so it is urgent to design an economic, environmental and energy-saving water distribution channel form and gate control facility, so as to provide reference for the development and application of artificial wetland.

[0003] At present, there are some finished products of gate facilities on the market, such as steel gate and wooden stoplog gate.

[0004] Among them, the stoplog gate relies on its own weight and rubber water stop belt to achieve the purpose of water stop. It is generally composed of more than two stoplogs. When the gate is closed or opened, one stoplog is put in or taken out at a time, and the use frequency is low, but the whole is light and not easy to deform. Even if it is idle for a long time, it can also ensure good water stop effect and no leakage. The height of each stoplog is certain, and the shape is basically the same. Each stoplog has a protrusion and a groove (or a tongue and groove), and a water stop rubber strip is embedded in the protrusion and the groove. In this way, the stoplogs can be stacked one by one to reach the required height without obvious leakage. Two pull rings are provided on each stoplog to facilitate putting down or taking out. The gate slot is made of steel plate and is welded and installed with the pre-embedded steel plate on the channel. By relying on the spring and water pressure provided on the stoplog gate, the water stop rubber is tightly combined with the gate slot after being pressed, and the water stop effect is good. The overall material is Q235, and the thickness and strength of the steel plate are ensured to be not damaged and not deformed during transportation and installation. If there is damage and deformation, it can be repaired reliably. The rubber strip is embedded firmly and will not fall off or break down and age for a long time.

[0005] Steel gate is a common water retaining and stopping equipment in water supply and drainage engineering, water conservancy and hydropower engineering, which is composed of door frame, gate plate, sealing ring and adjustable wedge-shaped pressing block. The sealing surface of the steel gate can be adjusted by the wedge-shaped pressing block to ensure normal work after long-term use and wear. The steel gate has the characteristics of reasonable and solid structure, strong wear and corrosion resistance, reliable performance, convenient installation, adjustment, use and maintenance, etc. The durability is that all the light steel structures are composed of cold-formed thin-walled steel member system, and the steel skeleton is made of super corrosion-resistant high-strength cold-rolled galvanized sheet, which effectively avoids the influence of steel plate corrosion during construction and use, and increases the service life of the light steel member. The structural life can reach 30 years.

[0006] The existing gate controls the water inflow according to the different water retaining height. The single gate plate of the stoplog gate is wide, and it is difficult to realize accurate control of water distribution flow. The steel gate controls the gate height to adjust the flow by hand-operated / electric hoist, but the price of the finished equipment is relatively high, and due to the limited thickness and width of the wetland water distribution channel (generally about 200-300mm), it is not convenient to operate the hoist, and the electric hoist also needs to consume energy, and the arrangement of a large number of hoists will also affect the aesthetics of the wetland. Content of the utility model

[0007] In order to solve the problems existing in the prior art, the utility model provides a gate device for realizing uniform distribution of irregular artificial wetland unit flow, which adopts the form of fixed wooden gate combined with adjustable stainless steel plate, can flexibly adjust the gate height of the water inlet gate according to the change of water level fluctuation in the water distribution process, and realizes the balance between environmental protection and energy saving and functional requirements in water distribution.

[0008] The utility model is implemented in the following way. A gate device for realizing uniform distribution of irregular artificial wetland unit flow, which comprises a water distribution channel surrounded by a channel wall, a channel wall partition wall is arranged in the water distribution channel to divide the water distribution channel into a total water distribution channel and a distribution water channel; at least one water inlet gate is installed on the channel wall partition wall, each water inlet gate comprises a wooden gate plate and a stainless steel plate, the wooden gate plate is clamped between the channel wall partition walls, the stainless steel plate is installed on the wooden gate plate, and the height of the stainless steel plate extending out of the wooden gate plate is adjustable; a perforated water distribution pipe is arranged at the bottom of the channel wall near the artificial wetland side of the distribution water channel.

[0009] Preferably, a P-shaped rubber strip is arranged between the wooden gate plate and the channel wall partition wall, and the P-shaped rubber strip is arranged on the backwater side.

[0010] Preferably, a P-shaped rubber strip is arranged on the water side of the wooden gate plate at the channel bottom.

[0011] Preferably, a plurality of evenly arranged strip holes are formed on the stainless steel plate, a through hole is formed on the wood gate plate at a position corresponding to the strip hole, and the stainless steel plate is fixed on the wood gate plate through a hexagonal head bolt penetrating through the strip hole and the through hole.

[0012] Preferably, a terrazzo cover plate is installed on the top of the distribution channel.

[0013] Preferably, the height of the distribution channel is controlled according to the actual water depth plus an extra height of 0.5 m, and a retaining wall is arranged on the side close to the artificial wetland.

[0014] Preferably, the weir width of the wood gate plate is determined according to the flow distribution of the wetland unit.

[0015] The utility model has the advantages and positive effects that:

[0016] The utility model discloses a gate plate capable of accurately regulating and controlling distribution flow, and the fixed wood gate plate and the adjustable stainless steel plate are combined, the material is light, the operation is simple, no electric energy is consumed, and the utility model has strong implementability. The utility model can flexibly adjust the gate height of the water inlet gate according to the change of water level fluctuation in the distribution process, and realizes the balance between environmental protection and energy saving and functional requirements in distribution. BRIEF DESCRIPTION OF DRAWINGS

[0017] The technical solutions of the embodiments of the present application will be further described in detail below with reference to the drawings, but it should be known that these drawings are only designed for the purpose of explanation, and thus do not limit the scope of the present application. In addition, unless specifically indicated, these drawings are only intended to conceptually illustrate the structural configuration described herein, and are not necessarily drawn to scale.

[0018] Figure 1 is the structural schematic diagram of the gate device for realizing uniform distribution of irregular artificial wetland unit flow provided by the utility model embodiment;

[0019] Figure 2 is the structural schematic diagram of the water inlet gate cooperating with the channel wall partition wall provided by the utility model embodiment;

[0020] Figure 3 is the front view of the water inlet gate provided by the utility model embodiment;

[0021] Figure 4 is the side view of the water inlet gate provided by the utility model embodiment.

[0022] In the drawings: 1, total distribution channel; 2, terrazzo cover plate; 3, water inlet gate; 4, distribution channel; 5, perforated distribution pipe; 6, retaining wall; 7, wood gate plate; 8, strip hole; 9, stainless steel plate; 10, P-shaped rubber strip; 11, hexagonal head bolt; 12, channel wall partition wall. DETAILED DESCRIPTION

[0023] In order to further understand the inventive content, characteristics and effects of the present application, the following embodiments are exemplified and described in detail as follows with reference to the drawings.

[0024] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0025] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0026] Please refer to Figures 1-4 The embodiment of the present application provides a gate device for realizing uniform distribution of irregular artificial wetland unit flow, which comprises a water distribution channel surrounded by a channel wall, a channel wall partition wall 12 is arranged in the water distribution channel to divide the water distribution channel into a total water distribution channel 1 and a distribution water channel 4; at least one water inlet gate 3 is mounted on the channel wall partition wall 12, each water inlet gate 3 comprises a wooden gate plate 7 and a stainless steel plate 9, the wooden gate plate 7 is clamped between the channel wall partition wall 12, the stainless steel plate 9 is mounted on the wooden gate plate 7, and the height of the stainless steel plate 9 extending out of the wooden gate plate 7 can be adjusted; the distribution water channel 4 is provided with a perforated water distribution pipe 5 at the bottom of the channel wall close to the artificial wetland side.

[0027] As a preferred embodiment, gaps between the wooden gate plate 7 and the channel wall partition wall 12 are provided with P-shaped rubber strips 10, the P-shaped rubber strips 10 are arranged on the backwater side, and when the water flow flows on the water side, the water flow presses the P-shaped rubber strips 10 to play a role of preventing seepage.

[0028] As a preferred embodiment, the wooden gate plate 7 is also provided with P-shaped rubber strips 10 on the water side at the channel bottom, further ensuring the effect of preventing seepage.

[0029] As a preferred embodiment, a plurality of uniformly arranged strip holes 8 are formed on the stainless steel plate 9, and a through hole is formed on the wood gate plate 7 at a position corresponding to the strip hole 8, the stainless steel plate 9 is fixed on the wood gate plate 7 by a hexagonal head bolt (specification: M10*30) penetrating through the strip hole 8 and the through hole, the height of the stainless steel plate 9 extending out of the wood gate plate 7 is adjusted by the fixed position of the hexagonal head bolt on the strip hole 8, the flow rate is controlled by the water head on the weir, and uniform water distribution of the constructed wetland is realized.

[0030] As a preferred embodiment, a terrazzo cover plate 2 is installed on the top of the water distribution channel, and the safety of personnel walking in and out of the wetland is ensured.

[0031] As a preferred embodiment, according to the Guide to Water Quality Purification of Constructed Wetlands, the thickness of the horizontal subsurface flow constructed wetland filler area is generally 0.6-1.6 m, and if the water channel depth is deep, it is not economical, in order to save the depth of the wetland water distribution channel, the height of the water distribution channel is controlled according to the actual water depth plus an overheight of 0.5 m, a retaining wall 6 is arranged on the side close to the constructed wetland, the depth of the water distribution channel is saved, the engineering quantity is saved, and the structural stability is maintained.

[0032] As a preferred embodiment, the weir width of the wood gate plate 7 is determined according to the wetland unit distribution flow.

[0033] In order to better understand the above-mentioned embodiments of the present application, the following further describes them.

[0034] In order to better realize uniform water distribution of the wetland, the constructed wetland water distribution channel is divided into two, a total water distribution channel 1 and a distribution water channel 4. Water enters the main body of the constructed wetland after passing through the total water distribution channel 1, the water inlet gate 3 and the distribution water channel 4, and the water distribution channel is covered with a terrazzo cover plate 2. The water inlet gate 3 can accurately control the distribution flow of each wetland unit from the total water distribution channel 1, and the distribution water channel 4 is provided with a partition wall at the boundary of each wetland unit to effectively control the flow entering the wetland unit from flowing to other subunits at will, and water enters the constructed wetland through the perforated water distribution pipe 5. According to the Guide to Water Quality Purification of Constructed Wetlands, the thickness of the horizontal subsurface flow constructed wetland filler area is generally 0.6-1.6 m, and if the water channel depth is deep, it is not economical, and the construction and maintenance difficulty is large, according to the hydraulic calculation, the effective water depth of the constructed wetland water distribution channel is 0.39-0.44 m, so the height of the water distribution channel can be controlled according to the actual water depth plus an overheight of 0.5 m. Figure 1 The wetland water distribution channel is arranged more economically, and the surrounding retaining wall is added to consolidate the structural stability of the water distribution channel.

[0035] In this design, the main body of the inlet gate 3 is a wooden gate plate 7 made of pine wood, which is heat-impregnated with asphalt for corrosion protection. The wooden gate plate 7 is fixed to the channel wall partition wall 12 and is protected against seepage with P-type rubber strips 10. The water depth of the irregular artificial wetland varies from 0.39 to 0.44 m from the beginning to the end of the distribution channel. Table 1 calculates that the weir height along the distribution channel varies from 0.34 to 0.39 m. Therefore, the height of the fixed wooden gate plate 7 is 0.33 m, and the weir height needs to be adjusted from 0.01 to 0.06 m. A stainless steel plate 9 with a height of 200 mm is fixed to the wooden gate plate 7 with hexagonal head bolts. The stainless steel plate 9 has 70 mm × 15 mm strip holes 8 for adjusting the weir height, so that the water flows evenly from the main distribution channel 1 through the inlet gate 3 into the distribution channel 4. The intake gate 3 has two widths: 0.25m and 0.30m. Since the depth of the intake gate 3 being inserted into the partition wall 12 of the channel wall needs to be taken into account, the widths of the wooden gate plate 7 and the stainless steel plate 9 are 0.29m and 0.34m, respectively.

[0036] Calculate the head above the rectangular weir in the flow metering weir:

[0037]

[0038] In the formula: Q —Water flow rate (m³) 3 / s);

[0039] b —Weir width (m);

[0040] H —Water head above the weir (m);

[0041] g —The acceleration due to gravity is 9.81 (m / s²). 2 );

[0042] m —Flow coefficient.

[0043] Based on the irregular constructed wetland grid, each grid can be equipped with 2-3 inlet gates 3. The flow rate of each grid should be calculated to approximate the water treatment capacity of each grid as closely as possible. To facilitate implementation in actual construction, two specifications of inlet gate 3 weir widths are selected: 0.25m and 0.30m respectively. The water surface line is taken from the hydraulic calculation results of the channel bottom slope. By controlling the weir width of the inlet gates 3 and the number of inlet gates 3 in each grid, the head above the weir and the weir wall height (weir wall height = water surface line - head above the weir) are calculated, determining the weir wall height variation range along the distribution channel to be 0.34~0.39m. The calculation results are shown in Table 1.

[0044] Table 1 Calculation of Wetland Water Distribution Gates

[0045]

[0046] The utility model discloses in view of the existing problem of gate, design the accurate regulation and control of the water distribution flow's gate plate, select the fixed wooden gate plate 7 and adjustable stainless steel plate 9 combined mode, material is relatively light, simple operation, need not consume electric energy, can implementation is stronger. The utility model discloses can be aimed at the change of water level fluctuation of water distribution process, and the flexible adjustment of the gate height of inlet gate 3 is carried out, and the water distribution realizes the balance of environmental protection energy saving and functional demand.

[0047] The above only is to the preferred embodiment of the utility model, and does not limit the utility model in any form, and any simple modification, equivalent change and modification made to the above embodiment according to the technical essence of the utility model all belong to the range of the utility model technical scheme.

Claims

1. A gate device for achieving uniform distribution of flow in an irregular constructed wetland cell, characterized in that, The utility model provides a water distribution channel, which comprises a water distribution channel surrounded by a channel wall, a channel wall partition wall arranged in the water distribution channel, a total water distribution channel and a distribution water channel formed by the channel wall partition wall, at least one water inlet gate installed on the channel wall partition wall, a wood gate plate clamped between the channel wall partition walls, a stainless steel plate installed on the wood gate plate, and the height of the stainless steel plate extending out of the wood gate plate being adjustable, and a perforated water distribution pipe arranged at the bottom of the channel wall near the artificial wetland side of the distribution water channel.

2. The gate apparatus for achieving uniform distribution of flow in an irregular constructed wetland cell according to claim 1, wherein, A P-shaped rubber strip is arranged between the wood gate plate and the channel wall partition wall, and the P-shaped rubber strip is arranged on the leeward side.

3. The gate apparatus for achieving uniform distribution of flow in an irregular constructed wetland cell according to claim 1, wherein, A P-shaped rubber strip is arranged on the windward side of the wood gate plate at the channel bottom.

4. The gate apparatus for achieving uniform distribution of flow in an irregular constructed wetland cell according to claim 1, wherein, A plurality of uniformly arranged strip-shaped holes are formed in the stainless steel plate, a through hole is formed in the wood gate plate at a position corresponding to the strip-shaped hole, and the stainless steel plate is fixed to the wood gate plate by a hexagonal head bolt penetrating through the strip-shaped hole and the through hole.

5. The gate apparatus for achieving uniform distribution of flow in an irregular constructed wetland cell according to claim 1, wherein, A terrazzo cover plate is installed on the top of the water distribution channel.

6. The gate apparatus for achieving uniform distribution of flow in an irregular constructed wetland cell according to claim 1, wherein, The height of the water distribution channel is controlled according to the actual water depth plus an extra height of 0.5 m, and a retaining wall is arranged on the side of the water distribution channel near the artificial wetland.

7. The gate apparatus for achieving uniform distribution of flow in an irregular constructed wetland cell according to claim 1, wherein The weir width of the wood gate plate is determined according to the distribution flow of the wetland unit.

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