An automatic opening and closing sewage interception overflow gate system

Abstract

The invention provides an automatic opening and closing sewage interception overflow gate system, which belongs to the technical field of municipal drainage systems and aims to solve the problem of rainwater and sewage diversion control in municipal rainwater and sewage pipe networks; the system comprises an opening and closing gate unit, an overflow well, a combined pipe channel and a sewage interception pipe connected to the overflow well; an overflow wall is fixedly arranged in the overflow well, and the overflow wall divides the bottom of the overflow well into a combined chamber and a rainwater chamber; an overflow water level regulating plate is movably arranged on the overflow wall; the opening and closing gate unit comprises a bottom plate, a crank arm, a gate, a balance block and a float; the design of the invention does not require power supply and maintenance, and greatly reduces the system operation cost; it fills the gap of the domestic non-powered automatic opening and closing gate system with perfect sewage interception and overflow function; the system can be used in the project of adding sewage pipes when the urban rainwater and sewage pipe network is transformed to divert rainwater and sewage, and can also be used in sewage pipes that have been built but the sewage source has not been completely diverted, to increase the functions of sewage interception and rainwater overflow.

Description

Technical Field

[0001] The invention relates to the technical field of municipal drainage systems, and in particular to an automatic opening and closing sewage interception overflow gate system. Background Art

[0002] Throughout history, rainwater and sewage discharge in both cities and villages has basically been a combined system. For this reason, the state has invested a lot of money in the separation of rainwater and sewage over the years. The separation of rainwater and sewage in large and medium-sized cities has been basically completed, but in the more numerous and wider rural towns, the combined system is still prevalent. This is the main cause of black and smelly water bodies, ditches and river pollution in front of and behind rural houses. Therefore, it is an important means to solve the problem of water environment pollution by separating rainwater and sewage in combined water or sewage pipes that do not completely separate rainwater and sewage, and collecting sewage to sewage treatment facilities or municipal sewage trunk pipes.

[0003] However, unlike cities, most of the rural areas are low-rise buildings with low residential density, scattered sewage sources and narrow streets. If we go door to door to carry out rainwater and sewage diversion transformation for each household, the workload is huge and difficult to implement, and it is difficult to complete in one step. In order to solve the sewage collection problem, the rainwater and sewage combined pipes that cannot be transformed are temporarily retained, and the rainwater and sewage are diverted and collected at the end through professional sewage interception overflow wells, which has become an effective sewage collection method at present.

[0004] Traditional sewage overflow wells are divided into two categories, one is a sewage overflow well without a sewage opening and closing gate, and the other is a sewage overflow well with an electric opening and closing gate.

[0005] The sewage overflow well without sewage opening and closing gates has only an overflow wall. When it rains, there is no sewage opening and closing gate, and a large amount of rainwater is discharged into the sewage treatment facilities or sewage trunk pipes. This causes the sewage solubility of the facilities or sewage treatment plants to be diluted, seriously damaging the biochemical system of the facilities, increasing the load on the facilities, reducing the sewage treatment effect, and even forcing the sewage to overflow into the tailwater, causing secondary pollution. The well should be stopped from use.

[0006] Another type of electric gate interception overflow well, although the electric gate is added to solve the problem of large amounts of rainwater being discharged to sewage treatment facilities or sewage mains on rainy days, but there are still the following difficult to solve problems:

[0007] a) It needs to occupy an underground well space of about 2.5*3 meters. It cannot be implemented in rural areas with narrow roads and small distances between houses.

[0008] b) A large amount of concentrated sewage is needed. Most rural villages have only a few hundred residents and are scattered, so the daily sewage volume is only one or two hundred cubic meters at most, which seriously wastes equipment capacity.

[0009] c) It needs power to operate. The distribution of rural power lines is not perfect, and many locations need to lay cables specifically, which increases the complexity of the project and investment costs.

[0010] d) Daily operation and maintenance are required. Motors and machinery require daily maintenance, and limited technical and financial resources in rural areas make it difficult to equip them with dedicated operation and maintenance personnel.

[0011] e) The electric opening and closing sewage interception system requires a huge investment of hundreds of thousands of yuan. Rural sewage is scattered and there are many locations where sewage interception overflow wells need to be set up. Such a huge investment is impossible in rural areas. Summary of the invention

[0012] In response to the above-mentioned technical problems that have plagued the municipal industry, the purpose of the present invention is to provide an automatic opening and closing sewage interception and overflow gate system, which completely changes the usage limitations of traditional electric gate systems with a cost of hundreds of thousands of yuan, and has great application prospects in the current domestic urban and rural sewage treatment and renovation projects; no power supply and maintenance are required, which greatly reduces the system operating costs; it fills the gap in the domestic unpowered automatic opening and closing gate system with perfect sewage interception and overflow functions; the system can be used in projects where sewage pipes are added during the transformation of urban rainwater and sewage pipe networks to separate rainwater and sewage, and can also be used in sewage pipes that have been built but the sewage source has not been completely diverted, to increase the functions of sewage interception and rainwater overflow.

[0013] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0014] An automatic opening and closing sewage interception overflow gate system, characterized in that it comprises an opening and closing gate unit, an overflow well, and a combined pipe channel and a sewage interception pipe connected to the overflow well; an overflow wall is fixedly arranged in the overflow well, and the overflow wall divides the bottom of the overflow well into a combined chamber and a rainwater chamber; an overflow water level regulating plate is movably arranged on the overflow wall;

[0015] The gate opening and closing unit includes a base plate, a curved arm, a gate, a balance block and a float; the base plate is fixedly placed on the side wall of the overflow well; the curved arm is movably placed on the base plate; the gate is movably placed on the curved arm on one side of the confluence chamber; the float is fixedly placed on the curved arm, the balance block is movably placed on the curved arm, and the float and the balance block are located on the curved arm close to the rainwater chamber.

[0016] A double-bearing support is fixedly arranged on the bottom plate, a connecting shaft is rotatably arranged inside the double-bearing support, and one end of the connecting shaft is fixedly connected to the crank arm.

[0017] Preferably, two ends of the crank arm are respectively provided with sliding grooves; an adjusting screw is movably provided in the sliding groove; and the gate and the balancing block are respectively slidably arranged on the crank arm through the adjusting screws.

[0018] Preferably, an extension plate is fixedly provided on the gate, and running wheels are movably provided on the extension plate.

[0019] Preferably, a special-shaped orifice plate is fixedly provided at the pipe opening of the sewage interception pipe.

[0020] Preferably, the float is a streamlined solid foam plastic float.

[0021] The beneficial effects of the present invention are as follows: the design of the present invention has completely changed the limitation of the use of the traditional electric gate opening and closing machine system with a cost of hundreds of thousands of yuan, and has great application prospects in the current domestic urban and rural sewage treatment and renovation projects; no power supply and maintenance are required, which greatly reduces the system operation cost; it fills the gap in the domestic unpowered automatic gate opening and closing system with perfect sewage interception and overflow function; it can be used in the project of adding sewage pipes when the urban rainwater and sewage pipe network is renovated to separate rainwater and sewage, and it can also be used in sewage pipes that have been built but the sewage source has not been completely diverted, to increase the sewage interception and rainwater overflow functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 A schematic diagram of the structure of an automatic opening and closing sewage interception overflow gate system provided by an embodiment of the present invention;

[0024] Figure 2 for Figure 1 A partial enlarged view of point A in the middle.

[0025] Description of reference numerals:

[0026] Overflow well 1, combined pipe channel 2, special-shaped orifice plate 3, opening and closing gate unit 4, overflow wall 5, sewage interception pipe 6, running wheel 7, extension plate 8, gate 9, bottom plate 10, crank arm 11, balance block 12, float 13, overflow water level regulating plate 14. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] It should be noted that, in the description of the present invention, terms such as "center", "upper", "lower", "horizontal", "inner", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0029] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] like Figure 1 to Figure 2 As shown, an automatic opening and closing sewage interception overflow gate system comprises an opening and closing gate unit 4, an overflow well 1 and a combined pipe 2 connected to the overflow well 1; an overflow wall 5 is fixedly provided at the bottom of the overflow well 1, and the overflow wall 5 divides the bottom of the overflow well 1 into a combined chamber and a rainwater chamber; a sewage interception pipe 6 is provided on the overflow well 1; the opening and closing of the opening and closing gate unit 4 is controlled according to the water level of the rainwater chamber; an overflow water level regulating plate 14 is movably provided in the overflow wall 5, and the height of the overflow water level regulating plate 14 can be adjusted according to the actual amount of sewage in operation, so as to ensure that all sewage is intercepted and all rainwater overflows;

[0031] The gate opening and closing unit 4 includes a bottom plate 10, a curved arm 11, a gate 9, a balance block 12 and a float 13; the float 13 is a streamlined solid foam plastic float, made of a PVC foam plastic solid core float, and has an arc shape to ensure that the water resistance is small; the curved arm 11 is arranged across the confluence chamber and the rainwater chamber; the bottom plate 10 is fixedly placed on the side wall of the overflow well 1; the curved arm 11 is movably placed on the bottom plate 10; the gate 9 is movably placed on the curved arm 11 on one side of the confluence chamber; a connecting plate is fixedly provided on the curved arm 11, the float 13 is fixedly placed on the connecting plate on the curved arm 11, the balance block 12 is movably placed on the curved arm 11, and the float 13 and the balance block 12 are located on the curved arm 11 close to the rainwater chamber.

[0032] Furthermore, a double-bearing support is fixedly provided on the base plate 10, and a connecting shaft is rotatably provided inside the double-bearing support. One end of the connecting shaft is fixedly connected to the crank arm 11, and the double-bearing support is located above the overflow wall 5. The crank arm 11 can rotate with the double-bearing support as the rotation center, thereby ensuring that the opening and closing size of the gate 9 is proportional to the amount of rainwater.

[0033] Furthermore, slide grooves are respectively provided at both ends of the crank arm 11; adjusting screws are movably provided in the slide grooves; the gate 9 and the balance block 12 are respectively slidably set on the crank arm 11 through adjusting screws, and the position adjustment of the gate 9 can ensure that the gate 9 is aligned with the center of the pipe mouth of the sewage interception pipe 6; the position adjustment of the balance block 12 can ensure the optimal performance of the opening and closing torque.

[0034] Furthermore, a special-shaped orifice plate 3 is fixedly provided at the pipe opening of the sewage interception pipe 6 .

[0035] Furthermore, an extension plate 8 is fixedly provided on the gate 9, and a running wheel 7 is movably provided on the extension plate 8. The running wheel 7 can slide on the special-shaped orifice plate 3 as the crank arm 11 rotates, ensuring that the gate 9 always maintains a designed distance from the special-shaped orifice plate 3 during operation, ensuring sensitive opening and closing, and normal performance of the sewage interception and overflow function.

[0036] The main functions of the system are as follows:

[0037] According to the rise and fall of the indoor water level of the overflow well 2 on sunny and rainy days, the buoyancy of the float 13 is used to automatically control the opening and closing of the gate 9 at the outlet of the sewage interception pipe 6, ensuring that sewage and initial rainwater are discharged to the sewage pipe on sunny days, and the gate 9 at the sewage pipe outlet is automatically closed on rainy days, and the rainwater overflow returns to the natural water body.

[0038] On sunny days: there is only sewage in the upstream combined sewer. According to GB50014-2006 "Outdoor Drainage Design Code", the maximum design fullness of sewage pipes with a diameter of DN300-DN400 is 0.55 to 0.65. There is no overflow in the rainwater chamber. The rainwater sewage gate 9 is fully opened, and the sewage is intercepted by the overflow wall 5 and discharged to the sewage interception pipe 6. At the same time, the system also allows the overflow water level adjustment plate 14 of the overflow wall 5 to manually adjust the height of the adjustment plate according to the operation and management requirements to meet the requirements of reasonable sewage interception. Ensure that all sewage on sunny days is collected in sewage treatment facilities or sewage treatment plants.

[0039] Initial rain stage: Rainwater washes the ground surface and the upstream combined sewer pipe 2. The rainwater and sewage in the combined sewer pipe 2 are still sewage. At this time, the combined water level continues to rise, but has not yet reached the elevation of the overflow wall 5. The combined water is still discharged to the sewage interception pipe 6 after being intercepted by the overflow wall 5.

[0040] Continuous rain: The water level in the combined sewer 2 continues to rise, overflowing the overflow wall 5, and the rainwater is discharged to the rainwater chamber downstream of the overflow wall 5. The water level in the rainwater chamber begins to gradually rise, and the system gradually closes the sewage gate 9. When the water level rises to the sewage fullness (or the set water level), the sewage gate 9 is completely closed. This prevents rainwater from being discharged to sewage treatment facilities or sewage treatment plants, and allows rainwater to return to natural water bodies.

[0041] Rain stop stage: the rain gradually stops, the water level in the rainwater chamber gradually drops, and the sewage gate 9 gradually opens.

[0042] Return to sunny days: After the rain stops, the water level in the rainwater chamber returns to the sunny day elevation, and the sewage gate 9 is completely opened, returning to the first stage, and the cycle repeats.

[0043] The design of the present invention has completely changed the limitation of the use of the traditional electric gate opening and closing machine system with a cost of hundreds of thousands of yuan, and has great application prospects in the current domestic urban and rural sewage treatment and renovation projects; it does not require power supply and maintenance, which greatly reduces the system operation cost; it fills the gap in the domestic unpowered automatic gate opening and closing system with perfect sewage interception and overflow function; it can be used in the project of adding sewage pipes, and can also be used in sewage pipes that have been built but the sewage source has not been completely diverted, to increase the functions of sewage interception and rainwater overflow.

[0044] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. An automatic opening and closing sewage interception overflow gate system, characterized in that: It includes a gate opening and closing unit, an overflow well, and a combined pipe and a sewage interception pipe connected to the overflow well; an overflow wall is fixedly provided in the overflow well, and the overflow wall divides the bottom of the overflow well into a combined chamber and a rainwater chamber; an overflow water level regulating plate is movably provided on the overflow wall; the gate opening and closing unit includes a bottom plate, a curved arm, a gate, a balance block and a floating ball; the bottom plate is fixedly placed on the side wall of the overflow well; the curved arm is movably placed on the bottom plate; the gate is movably placed on the curved arm on one side of the combined chamber; the floating ball is fixedly placed on the curved arm, the balance block is movably placed on the curved arm, and the floating ball and the balance block are located on the curved arm close to the rainwater chamber; Both ends of the crank arm are provided with slide grooves; an adjusting screw is movably provided in the slide groove; the gate and the balance block are slidably arranged on the crank arm through the adjusting screws; An extension plate is fixedly arranged on the gate, and running wheels are movably arranged on the extension plate.

2. The automatic opening and closing sewage interception overflow gate system according to claim 1, characterized in that: A double-bearing support is fixedly arranged on the bottom plate, a connecting shaft is rotatably arranged inside the double-bearing support, and one end of the connecting shaft is fixedly connected to the crank arm.

3. The automatic opening and closing sewage interception overflow gate system according to claim 1, characterized in that: A special-shaped orifice plate is fixedly provided at the pipe opening of the sewage intercepting pipe.

4. The automatic opening and closing sewage interception overflow gate system according to claim 1, characterized in that: The float is a streamlined solid foam plastic float.

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