CN208893678U - A kind of automatic foam-expelling device and wastewater ditch flow measurement drainage system for sewage Baxeer slot - Google Patents
A kind of automatic foam-expelling device and wastewater ditch flow measurement drainage system for sewage Baxeer slot Download PDFInfo
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- CN208893678U CN208893678U CN201821132381.9U CN201821132381U CN208893678U CN 208893678 U CN208893678 U CN 208893678U CN 201821132381 U CN201821132381 U CN 201821132381U CN 208893678 U CN208893678 U CN 208893678U
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- baxeer slot
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Abstract
The utility model discloses a kind of automatic foam-expelling devices and wastewater ditch flow measurement drainage system for sewage Baxeer slot, automatic foam-expelling device is made of sewage runner and spray system, the sewage runner is located at the upstream in wastewater ditch and being in Baxeer slot, it is followed successively by filter screen along water (flow) direction and intercepts and weaken chamber, hydraulic fluid gravity spray eliminates chamber, filter screen buffers rectifying cavity, the filter screen interception decrease is intracavitary to be provided with the first filter screen of multi-disc, the second filter screen of multi-disc is provided in the filter screen buffering rectifying cavity, the spout of the spray system is located at the top that hydraulic fluid gravity spray eliminates chamber, the inlet communication of spray system is to sewage inlet.The utility model solves the problems, such as that sewage foam volume influences ultrasonic flowmeter and accurately measure with bulk deposition in the prior art, also some impurity sundries in sewage have been intercepted simultaneously, has avoided foam accumulation and sundries enters the data distortion risk of exceeding criterion problem of Baxeer slot influence ultrasonic flow rate measurement amount.
Description
Technical field
The utility model relates to a kind of Baxeer slot drainage systems for wastewater ditch flow measurement, and in particular to a kind of
Automatic foam-expelling device for Baxeer slot.
Background technique
Baxeer slot (also known as Pasteur's measuring tank) is the ancillary equipment for open channel flow rate measurement.In liquid flow process
In, non-full pipe state flowing water road is referred to as open channel (open channel), and the application places of open-channel meter include: that city supplies
Water flume, Cooling Water From Thermal Power Plants diversion and drainage ditch, waste water control flow into and discharge canal, industrial and mining enterprises' discharge of wastewater and water
Sharp engineering and agricultural irrigation channel etc..Flow in open channel is bigger, and liquid level is higher；Flow is smaller, and liquid level is lower.For general
Channel, the corresponding relationship that liquid level and flow do not determine, because of the same depth of water, the size of flow is also transversal with channel
Area, the gradient, roughness are related.Flow can be converted into liquid level by weir slot (such as Baxeer slot), measure water by measurement
The liquid level of water flow in weir notch, further according to water level-discharge relation of corresponding weir slot, reverse outflow.
In the prior art, as shown in Figure 1 and Figure 2, open-channel flow measurement drainage system include: water inlet 1, open channel 2,
Baxeer slot 3, ultrasonic flowmeter 4 and dewatering outlet 5, wherein Baxeer slot 3 is by upstream contraction section 6, short straight venturi 7 and downstream
8 three parts of diffuser composition, the slot bottom inclined downstream of venturi 7, the inclined direction of 8 slot bottom of diffuser and 7 slot bottom of venturi on the contrary,
Ultrasonic flowmeter 4 is arranged in contraction section.Therefore, in the open channel Baxeer slot drainage system, sewage flows into bright from water inlet 1
Inflow Baxeer slot 3 eventually flows to the discharge of dewatering outlet 5 after canal 2 passes sequentially through 4 measurement zone of ultrasonic flowmeter.
However, during sewage flows into Baxeer slot by open channel, existing in sewage in this kind of wastewater ditch system
Foam will form a large amount of foam accumulations, fill entire ultrasonic listening area in the contraction section entrance front end of Baxeer slot, thus
Ultrasonic flowmeter detection discharge of sewage data are caused larger distortion occur.The flow monitoring data of distortion are uploaded in linear flow rate
Monitoring platform, will lead to bigger than normal to enterprise's sewage discharge water, each pollutant factor Emission amount calculation value, enterprise's sewage occurs
The case where total emission volumn superscalar data, pollutant factor total emission volumn superscalar data, environmentally friendly risk is brought to enterprise.
Therefore, it is necessary to be improved to wastewater ditch flowmeter Baxeer slot drainage system, to solve the above problems.
Summary of the invention
The goal of the invention of the utility model is to provide a kind of automatic foam-expelling device for sewage Baxeer slot, to prevent
Sewage foam improves ultrasonic flowmeter and visits in the accumulation of ultrasonic flowmeter detecting area and Baxeer slot contraction section entrance front end
Survey accuracy when discharge of sewage data.
To achieve the above object of the invention, the technical solution adopted in the utility model is: a kind of for sewage Baxeer slot
Automatic foam-expelling device, is made of sewage runner and spray system, and the sewage runner, which is located in wastewater ditch and is in, bar has a rest
The upstream of your slot is followed successively by filter screen and intercepts and weakens chamber, hydraulic fluid gravity spray elimination chamber, filter screen buffering along water (flow) direction
Rectifying cavity, the filter screen interception decrease is intracavitary to be provided with the first filter screen of multi-disc, setting in the filter screen buffering rectifying cavity
There is the second filter screen of multi-disc, the spout of the spray system is located at the top that hydraulic fluid gravity spray eliminates chamber, spray
The inlet communication of system is to sewage inlet.
In above-mentioned technical proposal, enters filter screen interception decrease chamber with frothy sewage and carry out interception decrease, be conducive to
Subsequent second step is eliminated；The waste water for tentatively being intercepted filtering decrease foam is flowed into hydraulic fluid gravity spray chamber and completely eliminates；
Then, the sewage after eliminating foam buffers rectifying cavity by rear road filter screen and carries out rectification water outlet.Pre-filtering is arranged using front end
Net solves the problems, such as to intercept in advance and weakens sewage foam volume and accumulation, also intercepted some impurity sundries in sewage simultaneously, avoided
Foam and sundries, which enter Baxeer slot, influences the data distortion risk of exceeding criterion problem of ultrasonic flow rate measurement amount.Centre setting water
Power fluid gravity spray, rear end setting filter screen buffer rectification water outlet, are sprayed using hydraulic fluid gravity and thoroughly solve to eliminate
Foam, avoids foam and sundries enters the data distortion risk of exceeding criterion problem of Baxeer slot influence ultrasonic flow rate measurement amount.
In above-mentioned technical proposal, the spray system includes water pump, filter, shut-off valve, catchment pipeline and one group of spray
Head, in water pump operation, water flow by water pump, enters the pipeline that catchments through filter, shut-off valve from sewage inlet, by with catchment
One group of spray head of pipeline connection enters hydraulic fluid gravity spray and eliminates chamber.
Preferred technical solution, the length that the hydraulic fluid gravity spray eliminates chamber are not less than 1.2m, catchment with described
Pipeline connection, is arranged multiple sparge pipes perpendicular to open channel direction arrangement, and sparge pipe is sprayed in the hydraulic fluid gravity and eliminated
It is uniformly distributed above chamber, the spray head is distributed on multiple sparge pipes.
Preferably, on same sparge pipe, the spacing of adjacent spray head is not less than 2 times of nozzle diameters, is not more than 4 times of spouts
Diameter；The distance between adjacent sparge pipe is 10cm~20cm.
The water-aspirator pressure is not less than 0.1Mpa, and pump head is not less than 10 meters, and the water flowing net of the filter is 18~
30 mesh/cm2。
In above-mentioned technical proposal, the mesh number of first filter screen is 18 mesh~30 mesh.First filter screen is stainless
Steel double-layer filtering net.
The mesh number of second filter screen is 30 mesh~40 mesh.Second filter screen is stainless steel double-layer filtering net.
The utility model also discloses a kind of wastewater ditch flow measurement drainage system, including water inlet, open channel, Ba Xie
That slot, ultrasonic flowmeter and dewatering outlet, wherein in the upstream of the Baxeer slot, be equipped with above-mentioned for sewage Baxeer slot
Automatic foam-expelling device.
Since above-mentioned technical proposal is used, the utility model has the advantage that compared with prior art
1, the utility model solves interception decrease sewage foam volume in advance and asks with accumulation by setting front end prefiltering net
Topic has also intercepted some impurity sundries in sewage simultaneously, avoids foam and sundries enters Baxeer slot and influences ultrasonic flow
Count the data distortion risk of exceeding criterion problem of measurement.
2, utility model device sprays middle section setting hydraulic fluid gravity, rear end setting filter screen buffers rectification
Water outlet is sprayed using hydraulic fluid gravity and thoroughly solves to eliminate foam, avoids foam and sundries enters Baxeer slot influence
The data distortion risk of exceeding criterion problem of ultrasonic flow rate measurement amount.
Detailed description of the invention
Fig. 1 is in the prior art in the structural schematic diagram of open channel setting Baxeer slot；
Fig. 2 is the schematic top plan view of Fig. 1 (ultrasonic sensor is not drawn into)；
Fig. 3 is the setting structure schematic diagram of the utility model embodiment；
Fig. 4 is the schematic top plan view of Fig. 3；
Fig. 5 is the schematic diagram in embodiment for the automatic foam-expelling device of sewage Baxeer slot.
Wherein: 1, water inlet；2, open channel；3, Baxeer slot；4, ultrasonic flowmeter；5, dewatering outlet；6, contraction section；7, larynx
Road；8, diffuser；9, spray system；10, filter screen, which intercepts, weakens chamber；11, hydraulic fluid gravity spray eliminates chamber；12, it filters
Net buffering rectifying cavity；13, the first filter screen；14, the second filter screen；15, water pump；16, filter；17, stop valve；18, it catchments
Pipeline；19, sparge pipe；20, spray head.
Specific embodiment
The utility model is further described with reference to the accompanying drawings and embodiments:
Embodiment: referring to shown in attached drawing 3 and attached drawing 4, a kind of wastewater ditch flow measurement drainage system, including water inlet 1,
Open channel 2, Baxeer slot 3, ultrasonic flowmeter 4 and dewatering outlet 5, wherein Baxeer slot 3 is by upstream contraction section 6, short straight venturi 7
It is formed with 8 three parts of downstream diffuser, the slot bottom inclined downstream of venturi 7, the inclined direction and 7 slot of venturi of 8 slot bottom of diffuser
Bottom is on the contrary, ultrasonic flowmeter 4 is arranged in contraction section.In the upstream of the Baxeer slot, equipped with for sewage Baxeer slot
Automatic foam-expelling device.
The automatic foam-expelling device for sewage Baxeer slot in the present embodiment, by 9 structure of sewage runner and spray system
At the sewage runner is located at the upstream in wastewater ditch 2 and being in Baxeer slot 3, is followed successively by filter screen along water (flow) direction and blocks
It cuts and weakens chamber 10, hydraulic fluid gravity spray elimination chamber 11, filter screen buffering rectifying cavity 12, the filter screen, which intercepts, weakens chamber 10
It is inside provided with the first filter screen of multi-disc 13, is provided with the second filter screen of multi-disc 14 in the filter screen buffering rectifying cavity 12, it is described
The spout of spray system 9 is located at the top that hydraulic fluid gravity spray eliminates chamber 11, the inlet communication of spray system to dirt
Water water inlet 1.
Wherein, referring to shown in attached drawing 5, spray system 9 include water pump 15, filter 16, shut-off valve 17, the pipeline 18 that catchments,
Multiple sparge pipes 19 and one group of spray head 20 perpendicular to open channel direction arrangement, in water pump operation, water flow is from sewage inlet
By water pump, enters the pipeline that catchments through filter, shut-off valve, hydraulic fluid is entered by one group of spray head with the pipeline connection that catchments
Gravity spray eliminates chamber.
In the present embodiment, the length that hydraulic fluid gravity spray eliminates chamber is not less than 1.2m, adjacent on same sparge pipe
The spacing of spray head is not less than 2 times of nozzle diameters, is not more than 4 times of nozzle diameters；The distance between adjacent sparge pipe be 10cm~
20cm.The water-aspirator pressure is not less than 0.1Mpa, and pump head is not less than 10 meters, and the water flowing net of the filter is 18~30
Mesh/cm2。
The mesh number of first filter screen is 18 mesh~30 mesh, using SUS304 stainless steel double-layer filtering net.
The mesh number of second filter screen is 30 mesh~40 mesh, using SUS304 stainless steel double-layer filtering net.
Hydraulic fluid gravity spray is eliminated chamber and is controlled by Water pump connected controller, is input to water pump by flowmeter electric signal
Controller.Weakening chamber when the frothy water of water inlet band flows into filter screen in order and intercepts, hydraulic fluid gravity spray eliminates chamber,
Filter screen buffers rectifying cavity, and reaching Bashel weir notch has water flowing, and ultrasonic flowmeter detects signal, by flowmeter electric signal
It is transferred to Water pump connected controller, linkage starting pumping for water pump carries out portion's spray in the device by the way that evenly distributed spray head is arranged
Leaching eliminates foam using hydraulic fluid gravity, and water flows into filter screen and buffers rectifying cavity, realizes non-foam, and ultrasonic flowmeter is quasi-
Really measurement, water are discharged by Bashel weir notch.
Claims (10)
1. a kind of automatic foam-expelling device for sewage Baxeer slot, it is characterised in that: by sewage runner and spray system structure
At the sewage runner is located at the upstream in wastewater ditch and being in Baxeer slot, is followed successively by filter screen along water (flow) direction and intercepts
Weaken chamber, hydraulic fluid gravity spray eliminates chamber, filter screen buffers rectifying cavity, the filter screen intercept weaken it is intracavitary be provided with it is more
The first filter screen of piece, the filter screen buffer in rectifying cavity and are provided with the second filter screen of multi-disc, the spout position of the spray system
The top for eliminating chamber, the inlet communication of spray system to sewage inlet are sprayed in the hydraulic fluid gravity.
2. the automatic foam-expelling device according to claim 1 for sewage Baxeer slot, it is characterised in that: the spray
System includes water pump, filter, shut-off valve, catchment pipeline and one group of spray head, and in water pump operation, water flow is from sewage inlet
By water pump, enters the pipeline that catchments through filter, shut-off valve, hydraulic fluid is entered by one group of spray head with the pipeline connection that catchments
Gravity spray eliminates chamber.
3. the automatic foam-expelling device according to claim 2 for sewage Baxeer slot, it is characterised in that: the waterpower
The length that fluid gravity spray eliminates chamber is not less than 1.2m, with the pipeline connection that catchments, is arranged multiple perpendicular to open channel direction
The sparge pipe of arrangement, sparge pipe are sprayed to eliminate and be uniformly distributed above chamber in the hydraulic fluid gravity, and the spray head is distributed in
On multiple sparge pipes.
4. the automatic foam-expelling device according to claim 3 for sewage Baxeer slot, it is characterised in that: in same spray
On water pipe, the spacing of adjacent spray head is not less than 2 times of nozzle diameters, is not more than 4 times of nozzle diameters；Between adjacent sparge pipe away from
From for 10cm~20cm.
5. the automatic foam-expelling device according to claim 2 for sewage Baxeer slot, it is characterised in that: the water pump
Pressure is not less than 0.1Mpa, and pump head is not less than 10 meters, and the water flowing net of the filter is 18~30 mesh/cm2。
6. the automatic foam-expelling device according to claim 1 for sewage Baxeer slot, it is characterised in that: described first
The mesh number of filter screen is 18 mesh~30 mesh.
7. the automatic foam-expelling device according to claim 6 for sewage Baxeer slot, it is characterised in that: described first
Filter screen is stainless steel double-layer filtering net.
8. the automatic foam-expelling device according to claim 1 for sewage Baxeer slot, it is characterised in that: described second
The mesh number of filter screen is 30 mesh~40 mesh.
9. the automatic foam-expelling device according to claim 8 for sewage Baxeer slot, it is characterised in that: described second
Filter screen is stainless steel double-layer filtering net.
10. a kind of wastewater ditch flow measurement drainage system, including water inlet, open channel, Baxeer slot, ultrasonic flowmeter and put
The mouth of a river, it is characterised in that: in the upstream of the Baxeer slot, be equipped with any described for sewage Bashel in claim 1 to 9
The automatic foam-expelling device of slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821132381.9U CN208893678U (en) | 2018-07-17 | 2018-07-17 | A kind of automatic foam-expelling device and wastewater ditch flow measurement drainage system for sewage Baxeer slot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821132381.9U CN208893678U (en) | 2018-07-17 | 2018-07-17 | A kind of automatic foam-expelling device and wastewater ditch flow measurement drainage system for sewage Baxeer slot |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208893678U true CN208893678U (en) | 2019-05-24 |
Family
ID=66567546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821132381.9U Active CN208893678U (en) | 2018-07-17 | 2018-07-17 | A kind of automatic foam-expelling device and wastewater ditch flow measurement drainage system for sewage Baxeer slot |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208893678U (en) |
-
2018
- 2018-07-17 CN CN201821132381.9U patent/CN208893678U/en active Active
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