CN1029703C - Vacuum siphon for sewer pipe - Google Patents
Vacuum siphon for sewer pipe Download PDFInfo
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- CN1029703C CN1029703C CN92110297A CN92110297A CN1029703C CN 1029703 C CN1029703 C CN 1029703C CN 92110297 A CN92110297 A CN 92110297A CN 92110297 A CN92110297 A CN 92110297A CN 1029703 C CN1029703 C CN 1029703C
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- vacuum
- sewer
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- pipeline
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/02—Arrangement of sewer pipe-lines or pipe-line systems
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/04—Pipes or fittings specially adapted to sewers
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Sewage (AREA)
Abstract
An inverted siphon culvert of a vacuum sewerage in which a reduction in vacuum caused by a head at the time of passing under an obstacle such as a river is prevented. An upstream vacuum sewer provided at one side of a river and a downstream vacuum sewer provided at the other side are connected by a water flow pipe and an air pipe passing under the river. Sewage water in the upstream vacuum sewer flows into the downstream vacuum sewer through the water flow pipe. The vacuum transmitted from a vacuum station to the downstream vacuum sewer is transmitted to the upstream vacuum sewer through the air pipe without being reduced substantially.
Description
The present invention relates to vacuum type sewer, relate in particular to prevent under the situation that vacuum drainage pipeline, has obstacle from source of sewage to vacuum station the degree of vacuum that the lift by this obstacle causes reduce, in the hope of the vacuum type sewer of the transported scope that enlarges sewage.
The vacuum type sewage collection system is drainage pipeline is evacuated (be not vacuum completely, and be meant a kind of decompression state), utilizes the system of collecting sewage with the pressure difference of atmosphere.
Fig. 3 example illustrates the structure of this vacuum type sewer system.
The water of discharging from the sanitary equipment of family and factory etc. flows to vacuum valve unit (transfer unit) 32 by intake channel 31.Draining is sent to vacuum station 34 from this vacuum valve 32 via vacuum sewer 33 again, is delivered to down in the water processing establishment via delivery pipe 36 by pressure pump 35 then.
In this vacuum station 34, by sewage (waste water) recirculating pump 37 sewage in the dump tank 38 is supplied with jet pump 39, like this, vacuum sewer 33 is evacuated, sewage is pooled in the vacuum station 34.
This vacuum type sewage collection system does not need the sort of continuous gradient of spontaneous current following formula sewerage in pipeline construction, have following feature.
1. because the laying depth of pipeline is shallow, can cut down the operating cost of culvert significantly.
2. can be at the groundwater level height, rock arranged, excavate difficulty, thereby the sewerage construction is carried out in the area that is difficult to bury underground sewerage.
3. also carry out easily in the construction at place, tortuous highway section.
4. because be to collect at a high speed mandatory intermittence,, carry out pipe arrangement with small-bore pipeline and become possibility so do not worry the blockage problem of pipeline with the gas-liquid mixed phase that vacuum is carried out.
But in the vacuum type sewage collection system, its possible conveying scope (collecting current territory down) is the scope that remains the negative pressure of 1000～2500mmAg in the degree of vacuum of the end of vacuum sewer.Therefore, suppose not exist in the vacuum drainage pipeline in the system of the factor that reduces degree of vacuum, so, possible conveying scope is and the degree of vacuum H that takes place in vacuum station.Deduct the proportional numerical value of value behind the essential negative pressure 1000～2500mmAg of above-mentioned note end.
In this vacuum type sewage collection system, if the gradient of rising is arranged on the vacuum drainage pipeline, then the lift in this gradient can consume the degree of vacuum that vacuum station takes place, and becomes the principal element that degree of vacuum reduces, and also becomes and dwindles the reason that may carry scope.For example, shown in Fig. 4,5, in the area that obstacle (for example river) arranged, vacuum sewer 33 is laid under obstacles such as this river passes or stride across from above, at this moment, the lift between AB is H
1Or H
2Because this lift H
1Or H
2, the degree of vacuum H of vacuum station
0Reduced suitable therewith amount (H
0-(H
1Or H
2)), at this moment may the conveying scope be and (H
0-(H
1Or H
2)) deduct the proportional numerical value of value behind the necessary negative pressure 1000～2500mmAg of above-mentioned end.Therefore, in this case may carry scope compared with the flat country may carry scope, diminished significantly.
Therefore, vacuum drainage pipeline, form under the situation of obstacle, develop the lift that can prevent with regard to hope degree of vacuum is reduced, to enlarge the technology that to carry scope of sewage because of this obstacle from source of sewage to vacuum station.
In view of this present invention makes the vacuum type sewer of degree of vacuum reduction be its purpose so that the lift that can prevent because of obstacle to be provided.
In addition, the present invention also prevents that to provide the vacuum type sewer syphon tube that has solid matter to pile up from being purpose in water service pipe.In addition, the present invention also aims to provide a kind of vacuum type sewer syphon tube,, and also can be suitable for when being configured on the level that is higher than upstream one side vacuum sewer when one side vacuum sewer only has severally in the downstream.
The present invention also can make things convenient for and the vacuum type sewer syphon tube of discharging the foreign matter in the water service pipe effectively is a purpose by air-supply to provide.
The 1st kind of vacuum type sewer syphon tube of the present invention is to connect upstream vacuum sewer that is arranged on obstacle one side and the downstream vacuum sewer that is arranged on the obstacle opposite side, comprise: pass, connect the water service pipe of above-mentioned upstream vacuum sewer and downstream vacuum sewer under the above-mentioned obstacle, with the breathing pipe that above or below above-mentioned obstacle, is connected above-mentioned upstream vacuum sewer and downstream vacuum sewer.
The 2nd kind of vacuum type sewer syphon tube is provided with gas-liquid separation device again and constitutes in the vacuum sewer of upstream on the 1st kind of siphonal basis of vacuum type sewer.
The 3rd kind of siphonal feature of vacuum type sewer is on the 1st kind of siphonal basis of vacuum type sewer, makes the sectional area that forms the bottom in the upstroke slope part in the above-mentioned water service pipe at least on the downbeam also littler than the sectional area of above-mentioned upstream vacuum sewer.
The 4th kind of siphonal feature of vacuum type sewer is on the 1st kind of siphonal basis of vacuum type sewer, with the end of above-mentioned breathing pipe downstream one side be connected above-mentioned downstream vacuum sewer in the above-mentioned water service pipe near on the part.
The 5th kind of vacuum type sewer syphon tube is on the 1st kind of siphonal basis of vacuum type sewer, include again: be used for making above-mentioned water service pipe floor level part or near pipeline that part is communicated with atmosphere it, with the stream selection device, this device can be taked to stop air to flow directly into the 1st state of above-mentioned downstream vacuum sewer from above-mentioned breathing pipe simultaneously aforementioned tube road direction atmosphere opening selectively, or blocks above-mentioned pipeline and allow air to flow directly into the 2nd state of downstream vacuum sewer from breathing pipe simultaneously.
The 6th kind of vacuum type sewer syphon tube also comprises on the 1st kind of siphonal basis of vacuum type sewer: be used for making above-mentioned water service pipe floor level part or near its 1st pipeline that partly is communicated with atmosphere; Make the 2nd pipeline that the intermediate portion of the part of formation upstroke slope is communicated with atmosphere on downbeam in the above-mentioned water service pipe; The stream selection device, it is taked above-mentioned the 1st pipeline selectively to atmosphere opening, seal above-mentioned the 2nd pipeline, simultaneously, stop air to flow directly into the 1st state of above-mentioned downstream vacuum sewer from above-mentioned breathing pipe, or seal above-mentioned the 1st pipeline and the 2nd pipeline, simultaneously, allow air to flow directly into the 2nd state of above-mentioned downstream vacuum sewer from above-mentioned breathing pipe, or seal above-mentioned the 1st pipeline, to atmosphere opening, stop air to flow directly into the 3rd state of above-mentioned downstream vacuum sewer from above-mentioned breathing pipe simultaneously above-mentioned the 2nd pipeline.
The 7th kind of vacuum type sewer syphon tube is on the 1st kind of siphonal basis of vacuum type sewer, in above-mentioned breathing pipe, be provided for opening and closing the valve of this breathing pipe, and the device among the setting of the upstream of this valve can be introduced atmosphere this breathing pipe and at least one side of upstream vacuum type sewer.
The 1st kind of vacuum type sewer syphon tube made under obstacle and passed, utilize water service pipe that the following water in the vacuum sewer of upstream is transported in the lower downstream vacuum sewer in position, simultaneously, utilization is sent to downstream vacuum sewer in the vacuum sewer with the negative pressure that vacuum station produced constantly with the breathing pipe that upstream vacuum sewer is communicated with.For this reason, the negative pressure that vacuum station produced can not consume on the purposes of pumping up water when the vacuum sewer passes under obstacle fully, and this negative pressure can be used in other local lift effectively.
In the 2nd kind of vacuum type sewer syphon tube, because in the vacuum sewer of upstream, be provided with gas-liquid separation device, so, flow through the fluid that comes from upstream vacuum sewer and be separated into gas and liquid reliably by this gas-liquid separation device.
Therefore, only flow into water in the water service pipe, simultaneously, a moving air in the breathing pipe makes it possible to successfully descend the conveying of water.
In the 3rd kind of vacuum type sewer syphon tube, form the bottom of the part of upstroke slope in the water service pipe at least at downbeam, that is the part of the easiest accumulation solid matter, its sectional area is done also forr a short time than the sectional area of upstream vacuum sewer.
Therefore, in this part, flow through water service pipe following water other place of velocity ratio want high.Thereby, in the upstroke slope part, obtained electing the upward flow that foreign matter strength is big, flow velocity is fast.Like this, by means of speed up following current, solid matter is discharged in the vacuum sewer of downstream effectively.
In the 4th kind of vacuum type sewer syphon tube, the end of breathing pipe downstream one side is connected on the approaching part of water service pipe middle and lower reaches vacuum sewer.Therefore, the negative pressure that is transmitted by breathing pipe has been brought into play the air lift effect of time water from above-mentioned breathing pipe link position to the part between the vacuum sewer of downstream at water service pipe.Because this air lift effect, following water is pumped up water to downstream vacuum sewer one side.
Thereby, just there is no need downstream vacuum sewer is arranged on always than the low H of upstream vacuum sewer
AThe position on, can improve the design degrees of freedom.
In addition, because the effect of this air lift, though the degree of vacuum that vacuum station produces has consumption slightly, its consumption is less than the degree that causes obstacle in water flowing.
In the 5th kind of vacuum type sewer syphon tube, sealing makes the floor level part of water service pipe or near the pipeline that part is communicated with atmosphere it, in addition, make air flow directly into downstream vacuum sewer from breathing pipe, by this, the same with aforementioned vacuum type sewer syphon tube, the sewage in the vacuum sewer of upstream can be transported to downstream vacuum sewer by water service pipe, the degree of vacuum that is sent to downstream vacuum sewer from vacuum station can not be sent to upstream vacuum sewer with not reducing fully.
On the other hand, with pipeline in atmosphere opening, stop air to flow directly into downstream vacuum sewer from breathing pipe, by this, because the decompression of vacuum station, air is near this pipeline is sent to the easiest accumulation foreign matter the water service pipe, floor level part or its.With this air, directly blow deposit in this position precipitation, accumulation, remove effectively, easily be discharged to downstream vacuum sewer one side then.
In the 6th kind of vacuum type sewer syphon tube, close near the 1st pipeline that makes water service pipe floor level part or partly be communicated with it with atmosphere, and the 2nd pipeline that is communicated with atmosphere of the intermediate portion that makes water service pipe on downbeam, form the part of upstroke slope, in addition, make air directly flow into downstream vacuum sewer from breathing pipe, by this, the same with aforementioned vacuum type sewer syphon tube, can utilize water service pipe that the sewage in the vacuum sewer of upstream is sent into downstream vacuum sewer, make the degree of vacuum that reaches downstream vacuum sewer from vacuum station not reduce substantially, be sent to upstream vacuum sewer.
In the 6th kind of syphon tube, with the 1st pipeline to atmosphere opening, seal the 2nd pipeline, simultaneously, stop air to flow directly into downstream vacuum sewer from breathing pipe, by this, identical with above-mentioned vacuum type sewer syphon tube, also can remove the deposit in the water service pipe effectively, easily it is discharged to downstream vacuum sewer one side, but the air-supply before, seal the 1st pipeline, with the 2nd pipeline to atmosphere opening, simultaneously, stop air to flow directly into downstream vacuum sewer, utilize this state, can reduce necessary decompression degree when the air-supply beginning from breathing pipe.
Fig. 1 is the cut-away view that shows an embodiment of the 1st kind of vacuum type sewer.
Fig. 2 is the cut-away view that shows an embodiment of the 2nd kind of vacuum type sewer.
Fig. 3 is the cut-away view that shows the vacuum type sewage collection system.
Fig. 4 is the siphonal cut-away view of vacuum type sewer that shows in the past.
Fig. 5 shows the siphonal cut-away view of existing vacuum type sewer.
Fig. 6 is the cut-away view that shows another embodiment of the 2nd kind of vacuum type sewer.
Fig. 7 is the cut-away view that shows an embodiment of the 3rd kind of vacuum type sewer.
Fig. 8 is the cut-away view that shows an embodiment of the 4th kind of vacuum type sewer.
Fig. 9 is the cut-away view that shows an embodiment of the 5th kind of vacuum type sewer.
Figure 10 is the pipeline structure figure that shows an embodiment of the 6th kind of vacuum type sewer.
Figure 11 is the cut-away view that shows an embodiment of the 5th kind of vacuum type sewer.
Figure 12 A is the cut-away view that shows an embodiment of the 5th kind of vacuum type sewer.
Figure 12 B is the cut-away view that shows an embodiment of the 5th kind of vacuum type sewer.
Figure 13 A is the cut-away view that shows an embodiment of the 5th kind of vacuum type sewer.
Figure 13 B is the cut-away view that shows an embodiment of the 5th kind of vacuum type sewer.
Figure 14 is the cut-away view that shows an embodiment of the 6th kind of vacuum type sewer.
Figure 15 is the cut-away view that shows an embodiment of the 6th kind of vacuum type sewer.
Figure 16 A is the cut-away view that shows an embodiment of the 6th kind of vacuum type sewer.
Figure 16 B is the cut-away view that shows an embodiment of the 6th kind of vacuum type sewer.
Figure 16 C is the cut-away view that shows an embodiment of the 6th kind of vacuum type sewer.
Figure 17 is the cut-away view that shows an embodiment of the 1st kind of vacuum type sewer.
Figure 18 is the cut-away view that shows the 2nd kind of another embodiment of vacuum type sewer.
Figure 19 is the cut-away view that shows the 2nd kind of another embodiment of vacuum type sewer.
Figure 20 is the cut-away view that shows an embodiment of the 2nd kind of vacuum type sewer.
Figure 21 is the cut-away view that shows an embodiment of the 4th kind of vacuum type sewer.
Figure 22 is the cut-away view that shows an embodiment of the 5th kind of vacuum type sewer.
Figure 23 is the pipeline structure figure that shows an embodiment of the 6th kind of vacuum type sewer.
Figure 24 is the cut-away view that shows an embodiment of the 5th kind of vacuum type sewer.
Figure 25 A is the cut-away view that shows an embodiment of the 5th kind of vacuum type sewer.
Figure 25 B is the cut-away view that shows an embodiment of the 5th kind of vacuum type sewer.
Figure 26 A is the cut-away view that shows an embodiment of the 5th kind of vacuum type sewer.
Figure 26 B is the cut-away view that shows an embodiment of the 5th kind of vacuum type sewer.
Figure 27 is the cut-away view that shows an embodiment of the 6th kind of vacuum type sewer.
Figure 28 is the cut-away view that shows an embodiment of the 6th kind of vacuum type sewer.
Figure 29 A is the cut-away view that shows an embodiment of the 6th kind of vacuum type sewer.
Figure 29 B is the cut-away view that shows an embodiment of the 6th kind of vacuum type sewer.
Figure 29 C is the cut-away view that shows an embodiment of the 6th kind of vacuum type sewer.
Following with reference to accompanying drawing, embodiments of the invention are made more specific description.
Fig. 1 and Figure 17 are the cut-away views that shows an embodiment of vacuum type sewer syphon tube of the present invention.
Among Fig. 1, a vacuum type sewer is set, crossing in the obstacle 1(present embodiment is the river).The 2nd, upstream vacuum sewer, the 3rd, downstream vacuum sewer.Water service pipe 4 is arranged to pass under river 1, but water flowing ground couples together vacuum sewer 2,3.In addition, upstream vacuum sewer 2 is arranged on than downstream vacuum sewer 3 high H
AThe position on, this H
ABe equivalent to down water can from upstream vacuum sewer 2 downstream vacuum sewer 3 flow through water service pipe 4 necessary little heads.Downstream one side of downstream vacuum sewer 3 connects vacuum station (diagram is omitted), makes in the pipe and can reduce pressure.Downstream vacuum sewer 3 and upstream vacuum sewer 2 relies on the breathing pipe 5 that passes under the river 1 to be communicated with, thereby, also can reduce pressure in the upstream vacuum sewer 2.In the present embodiment, valve 6 is set in breathing pipe 5, in the atmospheric communicating pipe of establishing on upstream vacuum sewer 2 10, valve 9 is set.
In order not allow water enter breathing pipe 5, the part 2A that goes out from upstream vacuum sewer 2 branches at breathing pipe 5 is provided with upstroke slope part 5A nearby.Equally, at breathing pipe 5 up and down trips vacuum sewer 2 connection parts rising part 5B is set nearby.In addition, as substituting of rising part 5B, also can be provided with and allow gas to flow into downstream vacuum sewers 3 but stop water to flow into the one-way valve of breathing pipes 5 from downstream vacuum sewer 3 from breathing pipe 5.
The water service pipe 4 of present embodiment wishes to be arranged to towards downstream formation descending grade.
The embodiment of Figure 17 1 top passes through breathing pipe 5 from the river, and other structures are identical with Fig. 1's.
In the vacuum type sewer syphon tube of the Fig. 1 that constitutes like this and Figure 17, usually, valve 6 is opened, and valve 9 is closed.Thereby, from upstream vacuum sewer 2, flow through the sewage that comes and pass water service pipe 4, arrive in the downstream vacuum sewer 3, flow to the downstream through this downstream vacuum sewer 3 again.On the other hand, the vacuum in the downstream vacuum sewer 3 passes to upstream vacuum sewer 2 via breathing pipe 5, plays the air lift effect in the lift in being arranged at upstream vacuum sewer 2 (diagram is omitted) thus.
Like this, in the siphonal pipeline of this vacuum type sewer, even there is river 1 obstacle such as grade, because sewage can pass this obstacle by water service pipe 4, so sewage passes, do not need lift under obstacle, the head of loss is minimum.Thereby, be used in effectively in the lift in place beyond the obstacle in the negative pressure that vacuum station took place.So can significantly enlarge the drainage area that single vacuum station can be collected.In addition, design freedom also increases substantially.
In addition, in sewage flow, can accumulate deposit in water service pipe 4, this deposit can be discharged like this.That is in streamflow few night or holiday, at first throttle down 6, then open the valve 9 of upstream vacuum sewer, when making air suck in the upstream vacuum sewer 2, utilize vacuum station to make decompression in the downstream vacuum sewer 3.Like this, wind is blown in the water service pipe 4, and deposit is discharged in the vacuum sewer of downstream.In addition, air also can be by in the ascending pipes such as air pump.
Fig. 2 and Figure 18 have shown the 2nd kind of embodiment.In the embodiment of Fig. 2, the hole 7 of prospect pit of connecting upstream vacuum sewer 2 and so on is set near river 1 obstacle such as grade, connect water service pipe 4 in the bottom (on the bottom) in hole 7.In addition, hole 7(or upstream vacuum sewer 2) the last breathing pipe 5 that connects.On hole 7, cover bubble-tight lid 8, do not allow atmosphere infiltrate in the hole 7.
The embodiment of Figure 18 1 top passes through breathing pipe 5 from the river, and other structures are identical with Fig. 2's.
The vacuum type sewer syphon tube of Fig. 2 and Figure 18 is identical with the embodiment of Fig. 1, only loses few head, just sewage can be delivered to downstream vacuum sewer 3 from upstream vacuum sewer 2, can where necessary deposit be blown out with air simultaneously.
In the embodiment of Fig. 2 and Figure 18, can among hole 7, do gas-liquid separation and handle the following water that flows into.Thereby, in water service pipe 4, have only water to flow, following water can successfully pass water service pipe 4.
That is in vacuum type sewer syphon tube shown in Figure 1, if separate insufficiently in the part 2A gas-liquid (air and Xia Shui) that branches out breathing pipe 5 from upstream vacuum sewer 2, gas-liquid mixture fluid will flow in the water service pipe 4 so.If gas-liquid mixture fluid flows in the water service pipe 4, owing to contain gas, the proportion that flows into fluid among the pipeline 4A of a side reduces, and is sent the water effect to become can not to give full play to by the pressure difference between the fluid among the fluid among the pipeline 4A and the pipeline 4C (head poor) generation.
As a result, until upstream vacuum sewer 2 branches out till the part 2A of above-mentioned breathing pipe 5, gas-liquid mixture fluid presents the state that is full of pipeline, and last, gas-liquid mixture fluid will flow in the breathing pipe 5.
Because 1 floor level part is to the lift height of rising position 5B from the river crossing, the gas-liquid mixture fluid of inflow breathing pipe 5 is unable to pass breathing pipe 5, and is trapped in the breathing pipe 5.Thereby owing to contain this delay of the fluid of water down, breathing pipe 5 is contaminated, and final blocked situation also can take place.
In order to address this problem, in the syphon tube of Fig. 1, in the upstream of branch part 2A upstream vacuum sewer 2, guarantee fully long linearity region, by this, when current are through this zone down, take to realize the method for gas-liquid separation.
But the linearity region that abundant length is set adds design limit can for the connection of branched pipe, setting of lift or the like, and this is undesirable.
In Fig. 2 and Figure 18, hole 7 is set in upstream sewer 2, as gas-liquid separator, therefore, flow into the current that do not contain bubble fully or do not contain bubble substantially in the water service pipe, thus water flowing successfully all the time.
In addition, in the embodiment of Fig. 2 and Figure 18, the solid matter that easily takes place to pile up from upstream vacuum sewer 2 flows through the sewage that comes is deposited among the hole 7, and therefore, the deposit amount in the water service pipe 4 significantly reduces.Therefore, as long as above-mentioned frequency of blowing with gas is very little, just enough.As long as take away lid 8, get rid of the deposit that is deposited in the hole 7 and get final product.
Fig. 6 and Figure 19 are the cut-away views that shows the 2nd kind of another embodiment of vacuum type sewer syphon tube.Vacuum type sewer syphon tube shown in Figure 6 is provided with gas-liquid separator 11 at the position of upstream vacuum sewer 2 and water service pipe 5 branches, and is in addition identical with structure shown in Figure 2, plays the parts of identical function and pays with identical label.
In the vacuum type sewer syphon tube of present embodiment, gas-liquid separator 11 is by strengthening the caliber of upstream vacuum sewer 2 corresponding sites, forming the big part of sectional area and constitute.
The embodiment of Figure 19 1 top passes through breathing pipe 5 from the river, and other structures are identical with Fig. 6's.
In the present embodiment, flow through the fluid that comes from upstream vacuum sewer 2 and carry out gas-liquid separation effectively gas-liquid separator 11, gases such as air lead to breathing pipe 5, and following water then flows to water service pipe 4, and water successfully passes water service pipe 4.
Fig. 7 and Figure 20 are the 3rd kind of embodiment's the siphonal cut-away views of vacuum type sewer.
In the present embodiment, the caliber d of water service pipe 4 is arranged to the little (d＜D) of caliber D than upstream vacuum sewer 2, make the sectional area of integral body of water service pipe 4, that is, be the pipeline 4A, approximate horizontal of descending grade but slightly be the pipeline 4B of descending grade and present the sectional area of sectional area ratio upstream vacuum sewer 2 of pipeline 4C of uphill slope degree also little.In addition, in the present embodiment, the caliber of downstream vacuum sewer 3 is arranged to identical with the caliber of upstream vacuum sewer 2.Like this, because the caliber of water service pipe 4 is done for a short time, the water flowing speed in the water service pipe 4 is just big.Thereby, prevented from water service pipe 4, to have solid matter to pile up.
The embodiment of Figure 20 1 top passes through breathing pipe 5 from the river, and other structure is identical with Fig. 7's.
In the embodiment of Fig. 7 and Figure 20, on the whole pipeline of water service pipe 4, its caliber is all set for also littler than the caliber of upstream vacuum sewer, but in the present invention, the sectional area at the handing-over position of water service pipe 4B, the 4C that can pile up the easiest generation foreign matter is set little than upstream vacuum sewer for.Thereby, for example, the caliber of pipeline 4A is equated with the caliber of upstream vacuum sewer, and only make the caliber of pipeline 4B and 4C littler than the caliber of upstream vacuum sewer.
In addition, the water service pipe sectional area is according to water service pipe the shape in place and scale, suitably decision such as the character of water and state down to be set with respect to the long-pending ratio of being dwindled of the passage sections of upstream vacuum sewer, but under normal conditions, preferred design becomes by reducing sectional area, obtains the above flow velocity of 0.6～0.8 meter per second in the reduced cross-sectional area path partly and make.
Fig. 8 and Figure 21 are the siphonal cut-away views of vacuum type sewer that shows the 4th kind of embodiment.
In the present embodiment, the end of breathing pipe 5 downstreams one side is connected in the water service pipe 4 towards downstream vacuum sewer 3 and forms on the intermediate portion of part 4C of upstroke slopes.
In addition, the embodiment of Figure 21 1 top passes through breathing pipe 5 from the river, and other structure is identical with Fig. 8's.
In the present embodiment, valve 6 is opened at ordinary times, and valve 9 is closed.From upstream vacuum sewer 2, flow through the sewage 90 that comes and pass water service pipe 4, arrive downstream vacuum sewer 3, pass through this downstream vacuum sewer 3 diffluences downstream again, on the other hand, vacuum in the downstream vacuum sewer 3 passes to upstream vacuum sewer 2 via breathing pipe 5, like this, the air lift effect is played in the lift in being arranged at upstream vacuum sewer 2 (diagram is omitted) lining.
At this moment, with the negative pressure that transmits via breathing pipe 5, in the position that connects breathing pipes 5 from water service pipe 4 begins interval till the downstream vacuum sewer 3, rely on the caused air lift effect of attraction of downstream vacuum sewer 3 one sides, produced along the effect of pumping up water of arrow 92 directions.Therefore, even the position of downstream vacuum sewer 3 than known designs position height, also can make sewage circulate effectively.
In the vacuum type sewer syphon tube shown in Fig. 1,17,2,18,6,19,7,20, as previously mentioned, flow to downstream vacuum sewer 3 necessary heads from upstream vacuum sewer 2 through water service pipes 4 in order to ensure following water, be necessary upstream vacuum sewer 2 is arranged on always than downstream vacuum sewer 3 high H
AThe position.In other words, be necessary that a downstream vacuum sewer 3 is arranged on than upstream vacuum sewer 2 often low H
AThe position on.Thereby, if in the predetermined zone of laying downstream vacuum sewer, there is obstacle such as covered conduit, and can not guarantee level disparity H
ALower position on downstream vacuum sewer is set, in this case, Fig. 1,2,6,7 vacuum type sewer syphon tube just become inapplicable.
As countermeasure, in the embodiment of Fig. 8 and Figure 21, as previously mentioned, in the position that connects breathing pipes 5 from water service pipe 4 begins interval till the downstream vacuum sewer 3, dependence produces the effect of pumping up water along arrow 92 directions by the air lift effect that attraction produced of downstream vacuum sewer 3 one sides.Therefore, even the position of downstream vacuum sewer 3 than original design attitude height, also can make sewage circulate effectively.Consequently, add some permission luffings for the level that is provided with of downstream vacuum sewer, can improve the design freedom of sewer by this.
In the embodiment of Fig. 8 and Figure 21, the link position of breathing pipe and water service pipe is properly to determine according to the level disparity of upstream vacuum sewer and downstream vacuum sewer.
Fig. 9 and Figure 22 are the 5th kind of embodiment's the siphonal cut-away views of vacuum sewer.The embodiment's of present embodiment and Fig. 1 and Figure 22 difference is, is provided with connecting tube 21, is used for being communicated with near position of water service pipe 4 floor levels and breathing pipe 5, and valve 22 was set in this connecting tube.
The embodiment of Figure 22 1 top passes through breathing pipe 5 from the river, and other structure is identical with Fig. 9's.
In the vacuum type sewer syphon tube that constitutes like this, at ordinary times, valve 6 is opened, and valve 9,22 is closed.The sewage of flowing through upstream vacuum sewer 2 and coming passes water service pipe 4, arrives downstream vacuum sewer 3, diffluence downstream again in downstream vacuum sewer 3.On the other hand, the vacuum in the downstream vacuum sewer 3 reaches upstream vacuum sewer 2 through breathing pipe 5, thus performance air-lift unit effect in the lift in being arranged at upstream vacuum sewer 2 (diagram is omitted).
In addition, when having accumulated deposit in the water service pipe in sewage flow 4, as following, discharge deposit.That is in streamflow few night or holiday, at first throttle down 6, open valve 9 and 22 again, make air be inhaled into the floor level position of water service pipe 4, simultaneously, make decompression in the downstream vacuum sewer 3 by vacuum station.Like this, the deposit that piles up in the floor level position of water service pipe 4 is directly blown and removes by air, and deposit is driven by a large amount of water down in the water service pipe 4, promptly is discharged in the upstream vacuum sewer 3.In addition, air also can be pressed into air pump etc.
In the 5th kind of vacuum type sewer syphon tube, water service pipe floor level position or near position is communicated with atmosphere it pipeline are not limited only to by Fig. 9 and breathing pipe shown in Figure 22, also can be the connecting tube 23 and the valves 24 of Figure 11 and direct connection atmosphere shown in Figure 24.In the vacuum type sewer syphon tube of Figure 11 and Figure 24, usual, valve 6 is opened, and valve 24 is closed, and when blowing, throttle down 6 is opened valve 24, can discharge deposit effectively.
In addition, shown in Figure 12 A, 12B, 25A, 25B, connect pipe 23, atmospheric communicating pipe 10 and breathing pipe 5 by four-way valve 25, (Figure 12 B, Figure 25 B) available four-way valve 25 carries out handover operation during (Figure 12 A, Figure 25 A) and air-supply at ordinary times.
In addition, in Fig. 9 and vacuum type sewer syphon tube shown in Figure 22, shown in Figure 13 A, 13B, three-way valve 26 is set at the connection part of connecting tube 21 and breathing pipe 5, replace valve 6 and 22, at ordinary times (Figure 13 A) and when blowing (Figure 13 B) carry out handover operation with valve 9 and three-way valve 26.
The 6th kind of vacuum type sewer syphon tube is provided with the 2nd pipeline again and constitutes in this 5th kind of vacuum type sewer syphon tube, the 2nd pipeline is used to make the intermediate portion that forms the part of upstroke slope on the water service pipe downbeam to be communicated with atmosphere.
Figure 14 and vacuum type sewer syphon tube shown in Figure 27 then are in the vacuum type sewer syphon tube of Fig. 9 and Figure 22 to be set connecting tube 51 again, are communicated with the neutral position and the breathing pipe 5 of the upstroke slope part of water service pipe 4, and valve 52 was set in connecting tube 51.
In this vacuum type sewer syphon tube, usual, valve 6 is opened, and valve 9,22,52 is closed, and when air-supply, opens valve 9,52 earlier, and throttle down 6,22 is once blown.At this moment, can under little initial decompression degree, pump up water.After once sending water, valve 6 is closed, and valve 9 is opened constant, and throttle down 52 is opened valve 22, carries out the 2nd air-supply.In the 2nd air-supply, can under little preliminary vacuum degree, pump up water.Like this, even the low vacuum type sewer syphon tube of system vacuum degree also can easily be blown.
Below, contrast illustrates in Figure 14 and Figure 27 embodiment's (the 6th kind of embodiment) syphon tube with reference to Fig. 1,9,10 and 17,22,23, the reason that essential decompression degree reduces when the air-supply beginning.In addition, for convenience of explanation, the proportion of water is 1 under setting, and the proportion of air is 0), through air-supply, following water mixes with 1: 1 ratio with air, and formation proportion is 0.5 gas-liquid miscible fluids.
Figure 10 is the siphonal pipeline structure figure of Figure 14, and Figure 23 is the siphonal pipeline structure figure of Figure 27.
1. the 1st kind of syphon tube
In Fig. 1,17 the 1st kind of vacuum type sewer syphon tube, at throttle down 6, open valve 9 and carry out under the air-supply situation, necessary decompression degree of when beginning air-supply (hereinafter being also referred to as " initially degree of decompression " sometimes) is equivalent to the level disparity of water service pipe 4 and upstream vacuum sewer 3, Figure 10,23 H
0
2. Fig. 9,22 the 5th kind of syphon tube
In Fig. 9,22 the 5th kind of vacuum type sewer syphon tube, throttle down 6 is opened valve 9,22, thereby the initial decompression degree when blowing is equivalent to the connection part of connecting tube 21 and the level disparity H between the downstream vacuum sewer 3
0When blowing continuously after this, because the fluid-mixing that has attracted time water and air to form with 1: 1 ratio, necessary decompression degree (hereinafter being sometimes referred to as " follow-up decompression degree ") is 1/2 H
0
3. Figure 10,23 the 6th kind of syphon tube
In Figure 10,23 the 6th kinds of vacuum type sewer syphon tubes, during putting in blast, elder generation's throttle down 6, open valve 9,52, throttle down 22 via atmospheric communicating pipe 10, breathing pipe 5, connecting tube 51, is higher than the part 4M air-supply (following claim that sometimes this is " once air-supply ") at the position that is connected with connecting tube 14 on the water service pipe 4 to level, like this, the beginning necessary initial decompression degree of once blowing is H
M, follow-up decompression degree is 1/2H
M
By once air-supply, form under the state of gas-liquid miscible fluids among the part 4M on the connection part of water service pipe 4 and connecting tube 52, keep valve 6 passes, valve 9 to open, throttle down 52, open valve 22, blow (current air-supply be sometimes referred to as hereinafter " secondary blast), in this case, the necessary initial decompression degree of this secondary blast is follow-up decompression degree 1/2H
MWith following water section among the part 4N below the connection part that is in the connecting tube 51 on the water service pipe 4 suitable H
NSum (1/2H
M+ H
N).Thereafter follow-up decompression degree is 1/2H as previously mentioned
0
Like this, in when air-supply, Fig. 1,9 and Figure 17,22 vacuum type sewer syphon tube in, necessary initial decompression degree is H
0, relative therewith, in the 6th kind of vacuum type sewer syphon tube, necessary initial decompression degree is 1/2H
M+ H
N, compare with Fig. 1,9,17,22 syphon tube, with only little 1/2H
MThe decompression degree just enough.
In addition, utilizing once blows when carrying out secondary blast again after the water in the above-mentioned 4M part discharged fully, and the initial decompression degree of secondary blast only is H
N
Like this, according to the 6th kind of vacuum type sewer syphon tube, the necessary decompression degree of air-supply beginning is reduced significantly, even under the inadequate situation of the degree of vacuum in the vacuum sewer, also can effectively blow.
Figure 15 and vacuum type sewer syphon tube shown in Figure 28 are to be provided with the connecting tube 53 of valve 54 again and the 6th kind of syphon tube constituting in vacuum type sewer syphon tube shown in Figure 11 and 24.
In Figure 15,28 vacuum type sewer syphon tube, at ordinary times, valve 6 is opened, and valve 9,24,54 is closed, and when air-supply, opens valve 9,54 earlier, and throttle down 6,24 is once blown.After once air-supply finishes, keep the state that valve 6 is closed, valve 9 is opened, throttle down 54 is opened valve 24, carries out secondary blast.
In the 6th kind of vacuum type sewer syphon tube shown in Figure 14,27,15,28, also can utilize with Figure 12 A, 12B, four-way valve and three-way valve that 13A, 13B are identical and carry out pushing wind manipulation.
Figure 16 A, 29A are provided with three-way valve 56 again at the middle part of connecting tube 23 on the siphonal basis of vacuum type sewer shown in Figure 12 A, the 25A, will be connected on the middle part of the upstroke slope part of water service pipe 4 from the connecting tube 55 that this three-way valve 56 is told.Utilize the switching of four-way valve 25, three-way valve 56, can carry out at ordinary times (Figure 16 A, 29A), the operation of (Figure 16 C, 29C) when (Figure 16 B, 29B) and secondary blast when once blowing.
The foregoing description all is obstacle with the river, but in the present invention, obstacle also can be that foundation is at underground building or the like.
As mentioned above, even if crossing the occasion that vacuum type sewer is set as river and so on obstacle, utilize vacuum type sewer syphon tube of the present invention, can prevent effectively that also the degree of vacuum consumption that produces owing to vacuum station from reducing crossing the degree of vacuum that causes on the obstacle position.Therefore, can realize that the vacuum type foul sewer system is suitable for the expansion of region, with and possible sewage transport scope be the expansion significantly in sewage collecting basin, simultaneously, design freedom also increases, its industrial applicibility is extremely wide.
Utilize vacuum type sewer syphon tube of the present invention, can make water service pipe water flowing successfully all the time.
In vacuum type sewer syphon tube of the present invention, can prevent that solid matter is deposited in the water service pipe.
In vacuum type sewer syphon tube of the present invention, downstream vacuum sewer can be provided in than on the high level of upstream vacuum sewer, the siphonal design freedom of vacuum type sewer increases substantially.
Utilize vacuum type sewer of the present invention, can get rid of the accumulation of foreign matter effectively.
Claims (7)
1, a kind of vacuum type sewer syphon tube connects upstream vacuum sewer that is arranged on obstacle one side and the downstream vacuum sewer that is arranged on the obstacle opposite side, it is characterized in that it comprises:
Water service pipe passes under above-mentioned obstacle, above-mentioned upstream vacuum sewer and downstream vacuum sewer coupled together,
Breathing pipe from the top of above-mentioned obstacle and the square tube mistake among the below, couples together above-mentioned upstream vacuum sewer and downstream vacuum sewer.
2, vacuum type sewer syphon tube as claimed in claim 1 is characterized in that, also is provided with gas-liquid separation device in the vacuum sewer of upstream.
3, vacuum type sewer syphon tube as claimed in claim 1 is characterized in that, at least forming long-pending do than above-mentioned upstream vacuum sewer little of the lower section of part of upstroke slope at downbeam on the above-mentioned water service pipe.
4, vacuum type sewer syphon tube as claimed in claim 1 is characterized in that, the end of above-mentioned breathing pipe downstream one side is connected on the part of approaching above-mentioned downstream vacuum sewer on the above-mentioned water service pipe.
5, vacuum type sewer syphon tube as claimed in claim 1 is characterized in that it also comprises:
The pipeline that is used to make near the part above-mentioned water service pipe floor level part or the floor level to be communicated with atmosphere,
The stream selection device, it takes in aforementioned tube road direction atmosphere opening to stop air to flow directly into the 1st state of above-mentioned downstream vacuum sewer from above-mentioned breathing pipe selectively, or seals above-mentioned pipeline and allow air to flow directly into the 2nd state of above-mentioned downstream vacuum sewer from above-mentioned breathing pipe simultaneously.
6, vacuum type sewer syphon tube as claimed in claim 1 is characterized in that it also comprises:
The 1st pipeline is used to make above-mentioned breathing pipe floor level part or near the part of floor level to be communicated with atmosphere,
The 2nd pipeline is used to make on the above-mentioned breathing pipe in the intermediate portion that downbeam forms the part of upstroke slope be communicated with atmosphere,
The stream selection device, it take selectively with above-mentioned the 1st pipeline to atmosphere opening, when sealing above-mentioned the 2nd pipeline, stop air to flow directly into the 1st state of above-mentioned downstream vacuum sewer from above-mentioned breathing pipe, or in sealing the 1st pipeline and the 2nd pipeline, allow air to flow directly into the 2nd state of above-mentioned downstream vacuum sewer from above-mentioned breathing pipe, or at above-mentioned the 1st pipeline of sealing, to the atmosphere opening time, stop air to flow directly into the 3rd state of above-mentioned downstream vacuum sewer from above-mentioned breathing pipe above-mentioned the 2nd pipeline.
7, vacuum type sewer syphon tube as claimed in claim 1, it is characterized in that, in above-mentioned breathing pipe, be provided for the valve of this breathing pipe of switch, the device among this valve downstream one side setting can be introduced atmosphere above-mentioned breathing pipe and both at least one sides of upstream vacuum type sewer.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP327567/91 | 1991-12-11 | ||
| JP3327567A JP2639260B2 (en) | 1991-12-11 | 1991-12-11 | Shugetsu of vacuum sewer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1073242A CN1073242A (en) | 1993-06-16 |
| CN1029703C true CN1029703C (en) | 1995-09-06 |
Family
ID=18200511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN92110297A Expired - Fee Related CN1029703C (en) | 1991-12-11 | 1992-09-03 | Vacuum siphon for sewer pipe |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2639260B2 (en) |
| KR (1) | KR960008707B1 (en) |
| CN (1) | CN1029703C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030065231A (en) * | 2002-01-31 | 2003-08-06 | 신진욱 | Method for constructing double pipes of sewer |
| CN105849166B (en) | 2013-12-27 | 2018-11-16 | 旭化成建材株式会社 | Phenol resin foam |
| SG10201400510QA (en) * | 2014-03-10 | 2015-10-29 | Boon Pen Chua | A method of priming a drainage apparatus for siphoning liquid, and a drainage apparatus |
| CN108842907A (en) * | 2018-07-25 | 2018-11-20 | 中国十七冶集团有限公司 | A kind of rain sewage lifter that taking into account piping lane and implementation method |
| CN112160395A (en) * | 2020-09-28 | 2021-01-01 | 深圳华净环境科技有限公司 | Vacuum toilet seat device |
-
1991
- 1991-12-11 JP JP3327567A patent/JP2639260B2/en not_active Expired - Lifetime
-
1992
- 1992-09-03 CN CN92110297A patent/CN1029703C/en not_active Expired - Fee Related
- 1992-10-09 KR KR92018539A patent/KR960008707B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| CN1073242A (en) | 1993-06-16 |
| KR960008707B1 (en) | 1996-06-29 |
| JPH05156692A (en) | 1993-06-22 |
| JP2639260B2 (en) | 1997-08-06 |
| KR930013395A (en) | 1993-07-21 |
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