CN202718232U - Buoy flow-limiting valve for combined system sewage intercepting well - Google Patents
Buoy flow-limiting valve for combined system sewage intercepting well Download PDFInfo
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- CN202718232U CN202718232U CN 201220397020 CN201220397020U CN202718232U CN 202718232 U CN202718232 U CN 202718232U CN 201220397020 CN201220397020 CN 201220397020 CN 201220397020 U CN201220397020 U CN 201220397020U CN 202718232 U CN202718232 U CN 202718232U
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- float
- sewage
- buoy
- flow
- flow restriction
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- 239000010865 sewage Substances 0.000 title claims abstract description 44
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 31
- 230000005540 biological transmission Effects 0.000 claims abstract description 14
- 238000005188 flotation Methods 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 230000000670 limiting effect Effects 0.000 abstract description 8
- 230000008859 change Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 230000006872 improvement Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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Abstract
The utility model discloses a buoy flow-limiting valve for a combined system sewage intercepting well. The buoy flow-limiting valve is arranged on a water outlet pipe of the intercepting well. The buoy flow-limiting valve for the combined system sewage intercepting well is characterized by comprising three parts which are a buoy, a transmission device and a brake piece. The buoy is connected with the transmission device through a linkage arm. A gear combination is arranged inside the transmission device which is connected with the brake piece by gear meshing and drives gears to rotate along with floating up and down of the buoy, and accordingly vertical movement of the brake piece is controlled, and the purpose of flow limiting is achieved. According to the buoy flow-limiting valve for the combined system sewage intercepting well, confluence sewage which is severely polluted can be effectively intercepted and enters an intercepting main pipe, the influent concentration of a sewage treatment plant is improved, pollution of rain water to a watercourse is effectively lowered.
Description
Technical Field
The utility model relates to a rain sewage treatment technology in the urban combined system drainage system, in particular to a flotation pontoon restriction valve for combined system sewage vatch basin.
Background
The urban drainage system mainly comprises a confluence system, a shunt system and a shutoff type confluence system. In recent years, with the emphasis on environmental protection and the enhancement of management and the improvement of economic strength of the country, new urban areas in various places basically adopt a rainwater and sewage flow division drainage system, and original drainage pipe networks in old urban areas are improved mostly by adopting a shutoff type combined flow system. The intercepting type confluence system is to collect sewage by using an original confluence pipe and laying sewage intercepting pipes along two sides of a river channel, and a intercepting well is arranged in front of a sewage intercepting main pipe. The pipe diameter of the intercepting main pipe is determined according to the drought flow sewage quantity and the intercepting multiple of the area.
The drainage system has certain effect in the specific implementation of intercepting sewage in old urban areas, but the intercepting rainwater amount is overlarge due to the fact that the existing intercepting well has no flow limiting measure, and the water inlet concentration of a sewage treatment plant in rainy seasons is greatly reduced due to the dilution effect of rainwater, so that the biochemical treatment effect of the sewage is influenced; meanwhile, the downstream intercepting amount of the intercepting main pipe is too large, and the upstream sewage can only overflow to a river channel, so that great pollution is caused.
SUMMERY OF THE UTILITY MODEL
To the problem that exists among the above-mentioned prior art, the utility model aims at: the utility model provides a flotation pontoon restriction valve for confluence system sewage vatch basin, its control that can be reasonable connects flow, increases sewage treatment plant's the concentration of intaking when rainy season, reduces the overflow pollution to the river course
The utility model provides a technical scheme that its technical problem adopted is:
a float flow-limiting valve for a combined system sewage catch basin is arranged at a water outlet pipe of the catch basin and comprises a float, a transmission device and a brake pad; the flotation pontoon pass through the linkage arm with transmission connects, transmission is inside to be equipped with the gear combination, through gear engagement with the brake lining is connected to drive gear revolve along with the fluctuation of flotation pontoon, thereby control reciprocating of brake lining, reach the purpose of current-limiting.
Preferably, the buoy is a hollow stainless steel closed cylinder and can float on the water surface.
Preferably, one end of the linkage arm is fixedly connected with the buoy, and the other end of the linkage arm is provided with a gear which is meshed with the gear combination in the transmission device.
Preferably, when the buoy is placed at the lowest floating point, the brake pad is completely opened.
Preferably, when the buoy is placed at the highest floating point, the brake pad is not completely closed.
Preferably, the width of the brake pad is adapted to the diameter of the water outlet pipe orifice, so that the flow limiting effect can be achieved when the brake pad is put down.
Preferably, the gate sets different opening degrees according to different water levels.
The utility model has the advantages that: the utility model discloses with the beneficial effect of some current-limiting device contrast now lie in: no power is needed, the operation is stable and reliable, and the installation is simple and rapid; maintenance is free; no flow sudden change; no subsequent adjustment is performed; no loss of water head; the product is firm and durable; the stable performance can be kept under the condition of backwater; in addition, the improved intercepting well can efficiently intercept the confluence sewage with heavy pollution to enter the intercepting main pipe, so that the water inlet concentration of a sewage treatment plant is improved, and the pollution of rainwater to a river channel is effectively reduced.
Drawings
FIG. 1 is a schematic view of the installation position of the float current limiting valve according to the present invention;
FIG. 2 is a schematic view of the float flow-limiting valve of the present invention;
FIG. 3 is a diagram of the working state of the float current limiting valve in dry seasons;
FIG. 4 is a state diagram of the operation of the float constrictor valve during the incipient rain phase;
fig. 5 is a state diagram of the operation of the float restriction valve in the mid-late stage of rain.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
As shown in fig. 1: intercept well 1 both ends and be equipped with an inlet tube 2 and an outlet pipe 3 respectively, the middle part is equipped with a discharge pipe 6, drain pipe mouth of pipe the place ahead still is equipped with an overflow weir 5, flotation pontoon restriction valve install the position at outlet pipe 3 to the realization is controlled the sewage that gets into and intercept well 1, when the water level did not reach overflow weir 5's height, sewage passes through flotation pontoon restriction valve 4 and discharges from outlet pipe 3, when the water level surpassed the height that reaches overflow weir 5, during sewage most discharged river course 7 from discharge pipe 6 through overflow weir, a small amount of outlet pipe discharge.
As shown in fig. 2: a float flow-limiting valve for a combined system sewage catch basin comprises a float 41, a transmission device 43 and a valve plate 44; the float 41 is connected with the transmission device 43 through the linkage arm 42, a gear combination is arranged in the transmission device 43, and is connected with the brake pad 44 through gear engagement, and the gear combination is driven to rotate along with the up-and-down floating of the float 41, so that the brake pad 44 is controlled to move up and down, and the purpose of current limiting is achieved.
The relationship between the opening degree of the brake pad of the intercepting and flow-limiting device and the water level is gradually reduced but not completely closed along with the rising of the water level. The opening degree represents the overflow, and the relation between the overflow and the water level is as follows:
when the water level is 0-h 1: the overflow rate is linearly changed along with the water level.
When the water level is h 1-h 2: the overflow quantity is basically unchanged along with the change of the water level.
When the water level is h 2-h 3: the overflow quantity is gradually increased along with the change of the water level, but the increase is not obvious.
Wherein,
h1 ranges approximately from 1/2 diameters;
the range of h2 is determined according to its current limit;
h3 is the designed maximum water level.
The working state of the float limiting valve in the intercepting well comprises the following steps:
as shown in fig. 3: and (3) a dry season sewage stage: the water level in the intercepting well 1 is lower, the position of the buoy 41 is lower, the brake lining 44 is in the maximum opening degree, and the sewage in the combined system pipeline completely enters the sewage intercepting pipe and flows out from the water outlet pipe 3;
as shown in fig. 4: an initial rainwater stage: the water level in the intercepting well 1 gradually rises, the position of the buoy 41 gradually rises, the opening degree of the brake disc 44 is gradually reduced, the intercepting amount is gradually increased, most of sewage and initial rainwater in the combined pipeline enter the sewage intercepting pipe and flow out of the water outlet pipe 3;
as shown in fig. 5: middle and later stage rainwater stage: the water level in the intercepting well 1 is higher, the water level gradually rises, the position of the buoy 41 gradually rises, the opening degree of the brake disc 44 is gradually reduced, the intercepting flow is basically constant, and sewage and rainwater in the combined pipeline enter the sewage intercepting pipe in a constant flow and flow out of the water outlet pipe 3;
through the improvement, the effects after implementation are as follows: 1. in rainy season, the COD concentration of the inlet water of the sewage plant can be increased to about 300mg/l, and the annual pollution emission reduction of the sewage plant is increased. 2. The overflow volume of the intercepting well along the sewage intercepting main pipe is balanced, so that the concentrated pollution caused by the concentrated overflow to the river channel is avoided, and the total pollution amount of the overflow is reduced.
The above display describes only the main features and innovative points of the present solution. It will be appreciated by those skilled in the art that the present solution is not limited by the embodiments described above. Without departing from the spirit and scope of the invention, there are numerous variations and modifications that fall within the scope of the claims. The scope of the present solution is defined by the appended claims and equivalents thereof.
Claims (7)
1. A float flow-limiting valve for a combined system sewage catch basin is arranged at a water outlet pipe of the catch basin and is characterized by comprising a float, a transmission device and a brake pad; the flotation pontoon pass through the linkage arm with transmission connects, transmission is inside to be equipped with the gear combination, through gear engagement with the brake lining is connected to drive gear revolve along with the fluctuation of flotation pontoon, thereby control reciprocating of brake lining.
2. The float flow restriction valve for a combined system sewage catch well of claim 1, wherein said float is a hollow stainless steel closed cylinder.
3. The float flow restriction valve for a combined sewage intercepting well according to claim 1, wherein one end of the linkage arm is fixedly connected with the float, and the other end of the linkage arm is provided with a gear which is engaged with a gear combination inside the transmission device.
4. The float flow restriction valve for a combined sewage catch basin of claim 1, wherein said gate is fully open when said float is positioned at a lowest float point.
5. The float flow restriction valve for a combined sewage catch well of claim 1, wherein said gate is not fully closed when said float is positioned at a highest float point.
6. The float flow restriction valve for a combined sewage intercepting well according to claim 1, wherein the width of the gate is adapted to the diameter of the outlet nozzle, so that the flow restriction effect can be achieved when the gate is lowered.
7. The float flow restriction valve for a combined sewage intercepting well according to claim 1, wherein the gate is set to have different opening degrees according to water levels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220397020 CN202718232U (en) | 2012-08-10 | 2012-08-10 | Buoy flow-limiting valve for combined system sewage intercepting well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220397020 CN202718232U (en) | 2012-08-10 | 2012-08-10 | Buoy flow-limiting valve for combined system sewage intercepting well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202718232U true CN202718232U (en) | 2013-02-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220397020 Expired - Fee Related CN202718232U (en) | 2012-08-10 | 2012-08-10 | Buoy flow-limiting valve for combined system sewage intercepting well |
Country Status (1)
| Country | Link |
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| CN (1) | CN202718232U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103574142A (en) * | 2012-08-10 | 2014-02-12 | 烟台水泰和水科技有限公司 | Pontoon flow-limiting valve applied to combined-system sewage catch basin |
| CN103850342A (en) * | 2014-02-21 | 2014-06-11 | 武汉圣禹排水***有限公司 | Spring locking-type hydraulic self-flushing retaining door |
-
2012
- 2012-08-10 CN CN 201220397020 patent/CN202718232U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103574142A (en) * | 2012-08-10 | 2014-02-12 | 烟台水泰和水科技有限公司 | Pontoon flow-limiting valve applied to combined-system sewage catch basin |
| CN103850342A (en) * | 2014-02-21 | 2014-06-11 | 武汉圣禹排水***有限公司 | Spring locking-type hydraulic self-flushing retaining door |
| CN103850342B (en) * | 2014-02-21 | 2015-07-08 | 武汉圣禹排水***有限公司 | Spring locking-type hydraulic self-flushing retaining door |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130206 Termination date: 20200810 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |