CN104003473A - Device for removing oil slick in wastewater based on an ultrasonic liquid level meter and pressure sensors - Google Patents
Device for removing oil slick in wastewater based on an ultrasonic liquid level meter and pressure sensors Download PDFInfo
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- CN104003473A CN104003473A CN201410239846.0A CN201410239846A CN104003473A CN 104003473 A CN104003473 A CN 104003473A CN 201410239846 A CN201410239846 A CN 201410239846A CN 104003473 A CN104003473 A CN 104003473A
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- oil slick
- sand setting
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Abstract
The invention discloses a device for removing oil slick in wastewater based on an ultrasonic liquid level meter and pressure sensors. The device comprises an oil-free water tank, an oil slick sand settling tank, an inclined plate sedimentation zone, a sand settling zone, a sewage water distribution pipe, an oil slick receiving box, a first wireless pressure sensor, a horizontal ejector, a second wireless pressure sensor, an oil slick zone, the wireless ultrasonic level meter and the like; due to the adopted wireless pressure sensors and wireless ultrasonic level meter, the complicated wiring and unreliability caused by the line fault in engineering are reduced and the wiring cost is reduced. Since the wireless ultrasonic level meter is also arranged in the device disclosed by the invention, by virtue of the synergistic effect of the wireless pressure sensors and the wireless ultrasonic level meter, whether the oil slick partially or completely covers the oil slick zone or not is indirectly determined, when the oil slick completely covers the oil slick zone, the oil slick layer floating on the water surface located at the upper part of the oil slick sand settling tank can be automatically removed. The device disclosed by the invention has the advantages of more simple and concise structure, and convenience in manufacturing and installation.
Description
Technical field
The invention belongs to oily(waste)water processing technology field, relate in particular to a kind of device based on oil slick in ultrasonic liquid leveller and pressure transmitter removal waste water.
Background technology
Oily substance is entered and in water, is formed oily(waste)water by different approaches, because it has a large capacity and a wide range, and the feature that is difficult to process becomes a kind of serious waste water that endangers, and its source mainly contains: the oil production in petroleum industry and the processing of oil product, refinement, storage and transportation; Carwash in transportation industry, the oily(waste)water of the discharge such as the oil-washing tank of railway locomotive depot; The steel rolling water producing in the machinofacture course of processing, lubricating oils etc. be take oil in water emulsion as main waste water; In catering trade, textile industry, food-processing industry and other manufacturing waste water, also contain a large amount of oily substances in addition.
The existence form of oily substance in water can be divided into oil slick, dispersed oil, oil in water emulsion and the large class of dissolving oil 4, the oil bead diameter of oil slick is larger, being greater than 100 μ m is easy to emerge, form oil film and oil reservoir, the oil bead diameter of dispersed oil is generally 10～100 μ m and is suspended in water with small particle, unstable, after standing for some time, tend to form oil slick, oil in water emulsion forms owing to containing tensio-active agent in water, oil droplet size is minimum, be generally less than 10 μ m, dissolving oil is a kind ofly with chemical mode, to be dissolved in the oil in water, its particle diameter can reach several nanometers.
At present, the processing mode of the oil slick in oily(waste)water, dispersed oil and oil in water emulsion (accounting for the more than 90% of whole oleaginousness), all to manage to make different states oil swims on water face, then adopt oil-scraping device, skimming plant, Oil sucking device that these oily substances are separated with water, but at least there are several in following several shortcoming in these cleaners:
1. can not strict differences profit while removing oil slick, particularly, in the situation that oleaginousness is less, easily oil, water are removed together, in the process of removing oil slick, sweep along a large amount of moisture simultaneously, make isolated oil contain a large amount of moisture;
2. device is comparatively complicated, is not easy to be installed on underground, and price is high;
3. maintenance trouble;
4. inconvenient automatization.
Of the present invention group of Major Members once applied for following three patents of invention with function of the same race: the oil slick in (1) < < automatic removal oily(waste)water and method and the device > > of sand setting (authorize, invention number: ZL201210148765.0), (2) oil slick of < < based in extraordinary fluid level measuring instrument removal waste water and method and the device > > (application number: 201210148784.3) of sand setting, (3) method and the device > > of < < based on oil slick and sand setting in oil and electrical conductivity of water removal waste water (authorizes, invention number: ZL201210148783.9).The present invention is on the basis of above three inventions, based on different principle, and the sisters of the another Xiang Xin of invention group Major Members invention.But, the unreliability that existing device exists the loaded down with trivial details and line fault that connects up in engineering to cause, wiring cost is higher simultaneously.
Summary of the invention
The object of the embodiment of the present invention is to provide a kind of device based on oil slick in ultrasonic liquid leveller and pressure transmitter removal waste water, be intended to solve the unreliability that the loaded down with trivial details and line fault that connects up in the engineering that existing oil-containing waste water treating device exists causes, the higher problem of while wiring cost.
The embodiment of the present invention is achieved in that a kind of device based on oil slick in ultrasonic liquid leveller and pressure transmitter removal waste water, should comprise by the device based on oil slick in ultrasonic liquid leveller and pressure transmitter removal waste water:
Without oil tank, aeration head, header, oil slick sand setting case, sloping plate deposition district, sand setting district, shore pipe, sewage water distributor, oil slick reception tank, the first wireless pressure sensor, drinking-water pipe, the first magnetic valve, water shoot, the second magnetic valve, transverse jet device, the second wireless pressure sensor, oil slick district, oil slick district upper end liquid level line, wireless ultrasonic tank gage, water inlet pipe, the 3rd magnetic valve, the 4th magnetic valve, oil exit pipe, oil pick-up tube, sealing cover, under meter, the 5th magnetic valve, the 3rd wireless pressure sensor,
Aeration head is separately positioned on the top without the sand setting district of oil tank bottom and oil slick sand setting case, and respectively in mid-way on the upper side bottom oil tank bottom and oil slick sand setting case; The first wireless pressure sensor is arranged on the left side without oil tank bottom, and drinking-water pipe is arranged on without oil tank left side, and the first magnetic valve is arranged on drinking-water pipe;
Oil slick sand setting case is arranged on the right side without oil tank, the sloping plate deposition district of oil slick sand setting case is arranged on the mid-way of oil slick sand setting case, the sand setting district of oil slick sand setting case is arranged on the bottom of oil slick sand setting case, shore pipe is arranged on the mid-way of the bottom, sand setting district of oil slick sand setting case, header is arranged on the below in the left side, sloping plate deposition district of oil slick sand setting case, header connects the water shoot being arranged on without on the dividing plate in the middle of oil tank and oil slick sand setting case, the second magnetic valve is arranged on water shoot, transverse jet device is left in the sloping plate deposition district of oil slick sand setting case, the top of right both sides arranges array in opposite directions, the oil slick district of oil slick sand setting case is arranged on the top of oil slick sand setting case, oil slick district upper end liquid level line is arranged on the top in the oil slick district of oil slick sand setting case, wireless ultrasonic tank gage is arranged on the top of oil slick sand setting case, the second wireless pressure sensor is arranged on the below in the left side, oil slick district of oil slick sand setting case, water inlet pipe is arranged on the right side of oil slick sand setting case, the 3rd magnetic valve is arranged on water inlet pipe, sewage water distributor connects water inlet pipe,
Oil slick reception tank is arranged on the right side of oil slick sand setting case, the 3rd wireless pressure sensor is arranged on the right side of oil slick reception tank bottom, oil pick-up tube is arranged on the right side of oil slick reception tank, the 5th magnetic valve is arranged in oil pick-up tube, under meter is arranged on the below of the 5th magnetic valve, and sealing cover is arranged on the top of oil slick reception tank, and oil exit pipe is arranged on the dividing plate in the middle of oil slick sand setting case and oil slick reception tank, be communicated with the oil slick district of oil slick sand setting case, the 4th magnetic valve is arranged on oil exit pipe.
Further, should the concrete grammar based on the device judgement oil slick of oil slick in ultrasonic liquid leveller and pressure transmitter removal waste water be:
First: without the bottom of oil tank, to the height of the bottom of water shoot, be made as h
1, the thickness in oil slick district is made as h
2, the bottom of oil slick reception tank is made as h to the height of the bottom 100mm of oil exit pipe
3, first wireless pressure sensor that is in operation, the second wireless pressure sensor, the shown pressure of the 3rd wireless pressure sensor are made as respectively p
1, p
2, p
3, the density of waste water is made as ρ
water, the density of oil slick is made as ρ
oil;
Secondly, oil slick sand setting case is in operation, and when the highest liquid level arrives the position of liquid level line of upper end, oil slick district, according to the difference of core intersection in oil slick district, the large I of pressure that the second wireless pressure sensor detects is divided into following two kinds of situations:
One, p
2> ρ
oilh
2now the top in oil slick district is that oil reservoir bottom is waste water layer, when in waste water, oleaginousness is few, while particularly bringing into operation, complete oil slick floor likely can't be formed at the top in oil slick district, at this moment oil slick district is all almost waste water, and when waste water surface forms after complete oil slick layer, the top in oil slick district is that waste oil floor bottom is waste water layer, the thickness of oil slick layer is less than h
2.If the waste water layer thickness of establishing in oil slick district is: δ, the thickness of oil slick layer is: (h
2-δ).The pressure p that so, now the second wireless pressure sensor detects
2can be represented by the formula:
P
2=ρ
waterδ+ρ
oil(h
2-δ)=ρ
oilh
2+ (ρ
water-ρ
oil) δ > ρ
oilh
2
So pressure p that the second wireless pressure sensor detects
2> ρ
oilh
2;
Two, p
2=ρ
oilh
2, now whole oil slick district is all oil slick.
Further, in this device removal oily(waste)water based on oil slick in ultrasonic liquid leveller and pressure transmitter removal waste water, the method for oil slick and sand setting comprises the following steps:
Step 1, when work starts, the 3rd magnetic valve (being connected by control circuit) is opened in central control unit indication between the two, now other magnetic valve is all in closing condition, pending oil-containing, sand sewage enter into water inlet pipe or squeeze into pump from ground gravity flow, through water inlet pipe, deliver to sewage water distributor, then sewage water distributor a side of the middle and lower part, sand setting district of oil slick sand setting case longitudinally, the direction of vertical paper is distributed sewage uniformly;
Step 2, as the position of wireless ultrasonic tank gage indication liquid level arrival oil slick district upper end liquid level line, simultaneously the second wireless pressure sensor indicator pressure p
2> ρ
oilh
2and the data line that the pressure data that the liquid level data that wireless ultrasonic liquidometer records and the second wireless pressure sensor record is connected with central control unit separately by them is transferred to after central control unit, the second magnetic valve (being connected by control circuit) is opened in central control unit (implant procedure in advance) indication between the two, close the 3rd magnetic valve sewage simultaneously and enter and stop, the sewage after oil slick sand setting flows into without oil tank after entering water shoot by header more voluntarily; When the liquid level of wireless ultrasonic tank gage indication oil slick sand setting case and the top in sloping plate deposition district are when consistent, central control unit indicates and cuts out the second magnetic valve, opens the 3rd magnetic valve simultaneously, and sewage continues to flow into oil slick sand setting case;
Step 3, as the position of wireless ultrasonic tank gage indication liquid level arrival oil slick district upper end liquid level line, simultaneously the second wireless pressure sensor indicator pressure p
2=ρ
oilh
2and the data line that the pressure data that the liquid level data that wireless ultrasonic liquidometer records and the second wireless pressure sensor record is connected with central control unit separately by them is transferred to after central control unit, the 4th magnetic valve (being connected by control circuit) is opened in central control unit indication between the two, close the 3rd magnetic valve sewage simultaneously and stop entering, oil slick enters oil slick reception tank through oil exit pipe gravity flow; When the liquid level of wireless ultrasonic tank gage indication oil slick sand setting case and the top of oil exit pipe are when consistent, to close the 4th magnetic valve and open the 3rd magnetic valve simultaneously, sewage continues to enter oil slick sand setting case;
Step 4, when the first wireless pressure sensor indication without the pressure of oil tank is: p
1=ρ
waterh
1, and while these data being passed to central control unit by data line, the first magnetic valve (being connected by control circuit) is opened in central control unit indication between the two, the sewage after oil removing sand setting pumps into lower road sewage disposal operation through drinking-water pipe; When the first wireless pressure sensor indication is less than a certain predefined value without the pressure of oil tank (this value approaches 0), central control unit indicates and cuts out the first magnetic valve;
Step 5, when the 3rd wireless pressure sensor, indicating the pressure of oil slick reception tank is p
3=ρ
oilh
3time, central control unit indication is opened the 5th magnetic valve (being connected by control circuit) oil slick between the two and is pumped into waste oil collecting barrel through under meter and oil pick-up tube, simultaneously under meter by the waste oil quantity that enters waste oil collecting barrel by wireless network transmissions to Surveillance center; When the pressure of the 3rd wireless pressure sensor indication oil slick reception tank is less than a certain predefined value (this value approaches 0), the 5th magnetic valve is closed in central control unit indication.
Further, be set to prevent that waste oil is without the removed sealing cover of under meter.
Further, be set to prevent the aeration head without oil tank and the fouling of oil slick sand setting case water body.
Further, transverse jet device laterally between two in opposite directions jet make the waste water at oil removing sand setting case middle part relatively mobile, increase collision opportunity between liquid particle.
Further, adopt RISEN wireless ultrasonic liquidometer.
The device of removing oil slick in waste water based on ultrasonic liquid leveller and pressure transmitter provided by the invention, adopts wireless pressure sensor, has reduced the unreliability that the loaded down with trivial details and line fault that connects up in engineering causes, has also reduced wiring cost simultaneously.The present invention is also provided with wireless ultrasonic tank gage, by the synergy of wireless pressure sensor and wireless ultrasonic tank gage, indirectly distinguish that oil slick district is all that oil slick or part are oil slick, when distinguishing that oil slick district is all oil slick, the oil slick layer that can automatically the top of oil slick sand setting case be swum in more than the water surface is removed automatically.In addition more simple, the succinct and making, easy for installation of structure of the present invention.
Accompanying drawing explanation
Fig. 1 is the apparatus structure schematic diagram based on oil slick in ultrasonic liquid leveller and pressure transmitter removal waste water that the embodiment of the present invention provides;
In figure: 1, without oil tank; 2, aeration head; 3, header; 4, oil slick sand setting case; 5, sloping plate deposition district; 6, sand setting district; 7, shore pipe; 8, sewage water distributor; 9, oil slick reception tank; 10, the first wireless pressure sensor; 11, drinking-water pipe; 12, the first magnetic valve; 13, water shoot; 14, the second magnetic valve; 15, transverse jet device; 16, the second wireless pressure sensor; 17, oil slick district; 18, oil slick district upper end liquid level line; 19, wireless ultrasonic tank gage; 20, water inlet pipe; 21, the 3rd magnetic valve; 22, the 4th magnetic valve; 23, oil exit pipe; 24, oil pick-up tube; 25, sealing cover; 26, the 5th magnetic valve; 27, under meter; 28, the 3rd wireless pressure sensor.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Below in conjunction with drawings and the specific embodiments, application principle of the present invention is further described.
As shown in Figure 1, the device of removing oil slick in waste water based on ultrasonic liquid leveller and pressure transmitter of the embodiment of the present invention mainly by:
Without oil tank 1, aeration head 2, header 3, oil slick sand setting case 4, sloping plate deposition district 5, sand setting district 6, shore pipe 7, sewage water distributor 8, oil slick reception tank 9, the first wireless pressure sensor 10, drinking-water pipe 11, the first magnetic valve 12, water shoot 13, the second magnetic valve 14, transverse jet device 15, the second wireless pressure sensor 16, oil slick district 17, oil slick district upper end liquid level line 18, wireless ultrasonic tank gage 19, water inlet pipe 20, the 3rd magnetic valve 21, the 4th magnetic valve 22, oil exit pipe 23, oil pick-up tube 24, sealing cover 25, the 5th magnetic valve 26, under meter 27, the 3rd wireless pressure sensor 28 forms,
Aeration head 2 is separately positioned on the top without the sand setting district 6 of oil tank 1 bottom and oil slick sand setting case, and mid-way on the upper side, the bottom in the bottom without oil tank 1 and oil slick sand setting case 4 respectively; The first wireless pressure sensor 10 is arranged on the left side without oil tank 1 bottom, and drinking-water pipe 11 is arranged on the left side without oil tank 1, and the first magnetic valve 12 is arranged on drinking-water pipe 11;
The right side that oil slick sand setting case 4 is arranged on without oil tank 1, the sloping plate deposition district 5 of oil slick sand setting case is arranged on the mid-way of oil slick sand setting case 4, the sand setting district 6 of oil slick sand setting case is arranged on the bottom of oil slick sand setting case 4, shore pipe 7 is arranged on the mid-way of 6 bottoms, sand setting district of oil slick sand setting case, header 3 is arranged on the below in 5 left sides, sloping plate deposition district of oil slick sand setting case, header 3 connects the water shoot 13 being arranged on without on the dividing plate of oil tank 1 and oil slick sand setting case 4, the second magnetic valve 14 is arranged on water shoot 13, transverse jet device 15 is left in the sloping plate deposition district of oil slick sand setting case, the top of right both sides arranges array in opposite directions, the oil slick district 17 of oil slick sand setting case is arranged on the top of oil slick sand setting case 4, oil slick district upper end liquid level line 18 is arranged on the top in the oil slick district 17 of oil slick sand setting case, wireless ultrasonic tank gage 19 is arranged on the top of oil slick sand setting case 4, the second wireless pressure sensor 16 is arranged on the below in 17 left sides, oil slick district of oil slick sand setting case, water inlet pipe 20 is arranged on the right side of oil slick sand setting case 4, the 3rd magnetic valve 21 is arranged on water inlet pipe 20, sewage water distributor 8 connects water inlet pipe 20,
Oil slick reception tank 9 is arranged on the right side of oil slick sand setting case 4, the 3rd wireless pressure sensor 28 is arranged on the right side of oil slick reception tank 9 bottoms, oil pick-up tube 24 is arranged on the right side of oil slick reception tank 9, the 5th magnetic valve 26 is arranged in oil pick-up tube 24, under meter 27 is arranged on the below of the 5th magnetic valve 26, sealing cover 25 is arranged on the top of oil slick reception tank 9, oil exit pipe 23 is arranged on the dividing plate of oil slick sand setting case 4 and the centre of oil slick reception tank 9, be communicated with the oil slick district 17 of oil slick sand setting case, the 4th magnetic valve 22 is arranged on oil exit pipe 23.
Integrated structure illustrates principle of work of the present invention:
1. when work starts, the 3rd magnetic valve 21 (being connected by control circuit) is opened in central control unit indication between the two, now other magnetic valve is all in closing condition, pending oil-containing, sand sewage enter into water inlet pipe 20 (or squeezing into pump) from ground gravity flow, through water inlet pipe 20, deliver to sewage water distributor 8, then sewage water distributor 8 distributes sewage uniformly in longitudinally (direction of vertical paper) of a side of the middle and lower part, sand setting district of oil slick sand setting case.
2. when wireless ultrasonic tank gage 19 indication liquid levels, arrive the position of oil slick district upper end liquid level line 18, simultaneously the second wireless pressure sensor indicator pressure p
2> ρ
oilh
2and the data line that the pressure data that the liquid level data that wireless ultrasonic liquidometer records and the second wireless pressure sensor record is connected with central control unit separately by them is transferred to after central control unit, the second magnetic valve 14 (being connected by control circuit) is opened in central control unit (pre-entering the computer of programmed) indication between the two, close the 3rd magnetic valve 21 sewage simultaneously and enter and stop, the sewage after oil slick sand setting flows into voluntarily without oil tank 1 after entering water shoot 13 by header 3 again; When the liquid levels of wireless ultrasonic tank gage 19 indication oil slick sand setting case 4 and the top in sloping plate deposition district 5 are when consistent, central control unit indicates and cuts out the second magnetic valve 14, opens the 3rd magnetic valve 21 simultaneously, and sewage continues to flow into oil slick sand setting case 4.
3. when wireless ultrasonic tank gage 19 indication liquid levels, arrive the position of oil slick district upper end liquid level line 18, simultaneously the second wireless pressure sensor indicator pressure p
2=ρ
oilh
2and the data line that the pressure data that the liquid level data that wireless ultrasonic liquidometer records and the second wireless pressure sensor record is connected with central control unit separately by them is transferred to after central control unit, the 4th magnetic valve 22 (being connected by control circuit) is opened in central control unit indication between the two, close the 3rd magnetic valve 21 sewage simultaneously and stop entering, oil slick enters oil slick reception tank 9 through oil exit pipe 23 gravity flows; When the liquid levels of wireless ultrasonic tank gage 19 indication oil slick sand setting case 4 and the top of oil exit pipe 23 are when consistent, to close the 4th magnetic valve 22 and open the 3rd magnetic valve 21 simultaneously, sewage continues to enter oil slick sand setting case 4.
4. when the first wireless pressure sensor 10 indicates the pressure without oil tank 1 to be: p
1=ρ
waterh
1time, the first magnetic valve 12 (being connected by control circuit) is opened in central control unit (pre-entering the computer of programmed) indication between the two, and the sewage after oil removing sand setting pumps into lower road sewage disposal operation through drinking-water pipe 11.When the first wireless pressure sensor 10 indication is less than a certain predefined value (this value approaches 0) without the pressure of oil tank 1, the first magnetic valve 12 is closed in central control unit (pre-entering the computer of programmed) indication.
5. the pressure when the 3rd wireless pressure sensor 28 indication oil slick reception tanks 9 is p
3=ρ
oilh
3time, central control unit (pre-entering the computer of programmed) indication is opened the 5th magnetic valve 26 (being connected by control circuit) oil slick between the two and is pumped into waste oil collecting barrel through under meter 27 and oil pick-up tube 24, simultaneously under meter 27 by the waste oil quantity that enters waste oil collecting barrel by wireless network transmissions to Surveillance center.Surveillance center just can promptly and accurately grasp the quantity that waste oil produces like this, so that allotment in time.If this application of installation, in diet places such as Large-scale Hotel, restaurants, can be carried out to Long-distance Control and management to the kitchen waste oil of its generation, and then controls the raw material of sewer oil from source, guarantee that common people are able to eat relieved oil.When the pressure of the 3rd wireless pressure sensor 28 indication oil slick reception tanks 9 is less than a certain predefined value (this value approaches 0), the 5th magnetic valve 26 is closed in central control unit (pre-entering the computer of programmed) indication.
6. sealing cover 25 arranges without under meter 27 is removed for preventing waste oil.Its effect is to guarantee that this installs collected waste oil all after under meter 26 meterings, allocates under the monitoring of Surveillance center.
7. for fouling, anti-water-stop body establishing respectively small underwater aeration head 2 without oil tank and oil slick sand setting case.Summer every three days central control unit (pre-entering the computer of programmed) indication without the aeration head aeration 5～10min in oil tank and oil slick sand setting case.
In addition, in order to increase the collision between liquid particle, some groups of transverse jet devices 15 facing each other have been installed at the middle part of oil removing sand setting case especially, transverse jet device 15 laterally between two in opposite directions jet the waste water at oil removing sand setting case middle part is flowed (also comprising that other is difficult to the simple complex flow of describing) relatively, increased the collision between liquid particle, thereby be that most of dispersed oil and the more short grained oil in water emulsion of part have been created the chance that is more combined into the elaioleucite of larger particles, then these elaioleucites float to the top of liquid level naturally, thereby improve oil removal efficiency 3% left and right.The more important thing is that this part oil of removing is dispersed oil and oil in water emulsion more, conventionally they are difficult to remove, when entering next procedure, bring a very large difficult problem (no matter because be that dispersed oil or oil in water emulsion are all the organism of hard degradation, they are difficult to biological degradation) can to operation below.
The present invention adopts RISEN wireless ultrasonic liquidometer to comprise supersonic liquid level detection, wireless transceiver system, Receiving Host three major parts.It is comprised of ultrasonic level gage-quantity converter, encoder, modulation circuit, high-frequency amplifier circuit, frequency changer circuit, demodulator circuit, demoder, thing bit digital indicating meter and antenna etc.The signal of level gauging is encoded to be transmitted by radio wave transmission, at acceptance point decoding count pick up and show thing bit digital.It transmits and receives and all adopts shortwave frequency and coaxial earth mat antenna, and the signal wave of transmitting can be transferred to a distant place through high-altitude ionospheric reflection, thereby reaches the object of telemeasurement thing position.
Wireless ultrasonic liquidometer is due to the transmission over radio adopting, some wiring difficulties, distance, high in cost of production problem have been solved, therefore the tower pressurized water supply of tap water that is widely used in home dwelling, school, factory, hotel, mansion, building is controlled with rivers, well water intaking, and water supply, fire-fighting, light industry, printing and dyeing, chemical fibre, papermaking, chemical industry, food, beverage, brewage, refine sugar, the plumbing of the industry such as cultivation, industrial and mineral, agricultural, water treatment and other produce for liquid supply discharge control or upper and lower limit liquid level warning automatically.
The present invention is the device (as shown in Figure 1) based on oil slick in ultrasonic liquid leveller and pressure transmitter removal waste water.The present invention, for accurately grasping the changing conditions of oil slick sand setting case 4 top floating oil layer thickness, is provided with wireless pressure sensor especially in the lower end, oil slick district of oil slick sand setting case, the top in oil slick district is provided with wireless ultrasonic tank gage.By the synergy of wireless pressure sensor and wireless ultrasonic tank gage, indirectly distinguish that oil slick district is all that oil slick or part are oil slick.And then when distinguishing that oil slick district is all oil slick, the oil slick layer that can automatically the top of oil slick sand setting case be swum in more than the water surface is removed automatically, concrete method is:
First: without the bottom of oil tank, to the height of the bottom of water shoot, be made as h
1, the thickness in oil slick district is made as h
2, the bottom of oil slick reception tank is made as h to the height of the bottom 100mm of oil exit pipe
3, first wireless pressure sensor that is in operation, the second wireless pressure sensor, the shown pressure of the 3rd wireless pressure sensor are made as respectively p
1, p
2, p
3, the density of waste water is made as ρ
water, the density of oil slick is made as ρ
oil.
Oil slick sand setting case is in operation, and when the highest liquid level arrives the position of liquid level line of upper end, oil slick district, according to the difference of core intersection in oil slick district, the large I of pressure that the second wireless pressure sensor detects is divided into following two kinds of situations:
One, p
2> ρ
oilh
2now the top in oil slick district is that oil reservoir bottom is that waste water layer is (when in waste water, oleaginousness is few, when particularly this device brings into operation, complete oil slick floor likely can't be formed at the top in oil slick district), at this moment oil slick district is all almost waste water, and when waste water surface forms after complete oil slick layer, the top in oil slick district is that waste oil floor bottom is waste water layer, and the thickness of oil slick layer is less than h
2.If the waste water layer thickness of establishing in oil slick district is: δ, the thickness of oil slick layer is: (h
2-δ).The pressure p that so, now the second wireless pressure sensor detects
2can be represented by the formula:
P
2=ρ
waterδ+ρ
oil(h
2-δ)=ρ
oilh
2+ (ρ
water-ρ
oil) δ > ρ
oilh
2
So pressure p that the second wireless pressure sensor detects
2> ρ
oilh
2;
Two, p
2=ρ
oilh
2, now whole oil slick district is all oil slick.
The device of removing oil slick in waste water with pressure transmitter based on ultrasonic liquid leveller of the present invention is by the synergy of wireless pressure sensor and wireless ultrasonic tank gage, oil is automatically separated with waste water with sand; Simple in structure, easy to operate, improved the processing efficiency of oily(waste)water.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (7)
1. the device based on oil slick in ultrasonic liquid leveller and pressure transmitter removal waste water, is characterized in that, should comprise by the device based on oil slick in ultrasonic liquid leveller and pressure transmitter removal waste water:
Without oil tank, aeration head, header, oil slick sand setting case, sloping plate deposition district, sand setting district, shore pipe, sewage water distributor, oil slick reception tank, the first wireless pressure sensor, drinking-water pipe, the first magnetic valve, water shoot, the second magnetic valve, transverse jet device, the second wireless pressure sensor, oil slick district, oil slick district upper end liquid level line, wireless ultrasonic tank gage, water inlet pipe, the 3rd magnetic valve, the 4th magnetic valve, oil exit pipe, oil pick-up tube, sealing cover, under meter, the 5th magnetic valve, the 3rd wireless pressure sensor,
Aeration head is separately positioned on the top without the sand setting district of oil tank bottom and oil slick sand setting case, and respectively in mid-way on the upper side bottom oil tank bottom and oil slick sand setting case; The first wireless pressure sensor is arranged on the left side without oil tank bottom, and drinking-water pipe is arranged on without oil tank left side, and the first magnetic valve is arranged on drinking-water pipe;
Oil slick sand setting case is arranged on the right side without oil tank, the sloping plate deposition district of oil slick sand setting case is arranged on the mid-way of oil slick sand setting case, the sand setting district of oil slick sand setting case is arranged on the bottom of oil slick sand setting case, shore pipe is arranged on the mid-way of the bottom, sand setting district of oil slick sand setting case, header is arranged on the below in the left side, sloping plate deposition district of oil slick sand setting case, header connects the water shoot being arranged on without on the dividing plate in the middle of oil tank and oil slick sand setting case, the second magnetic valve is arranged on water shoot, transverse jet device is left in the sloping plate deposition district of oil slick sand setting case, the top of right both sides arranges array in opposite directions, the oil slick district of oil slick sand setting case is arranged on the top of oil slick sand setting case, oil slick district upper end liquid level line is arranged on the top in the oil slick district of oil slick sand setting case, wireless ultrasonic tank gage is arranged on the top of oil slick sand setting case, the second wireless pressure sensor is arranged on the below in the left side, oil slick district of oil slick sand setting case, water inlet pipe is arranged on the right side of oil slick sand setting case, the 3rd magnetic valve is arranged on water inlet pipe, sewage water distributor connects water inlet pipe,
Oil slick reception tank is arranged on the right side of oil slick sand setting case, the 3rd wireless pressure sensor is arranged on the right side of oil slick reception tank bottom, oil pick-up tube is arranged on the right side of oil slick reception tank, the 5th magnetic valve is arranged in oil pick-up tube, under meter is arranged on the below of the 5th magnetic valve, and sealing cover is arranged on the top of oil slick reception tank, and oil exit pipe is arranged on the dividing plate in the middle of oil slick sand setting case and oil slick reception tank, be communicated with the oil slick district of oil slick sand setting case, the 4th magnetic valve is arranged on oil exit pipe.
2. the device based on oil slick in ultrasonic liquid leveller and pressure transmitter removal waste water as claimed in claim 1, is characterized in that, should the concrete grammar based on the device judgement floating oil layer thickness of oil slick in ultrasonic liquid leveller and pressure transmitter removal waste water be:
First, setting without the bottom of oil tank is h to the height of the bottom of water shoot
1, the thickness in oil slick district is h
2, the bottom of oil slick reception tank is h to the height of the bottom 100mm of oil exit pipe
3, first wireless pressure sensor that is in operation, the second wireless pressure sensor, the shown pressure of the 3rd wireless pressure sensor are respectively p
1, p
2, p
3, the density of waste water is ρ
water, the density of oil slick is ρ
oil;
Secondly, oil slick sand setting case is in operation, and when the highest liquid level arrives the position of liquid level line of upper end, oil slick district, according to the difference of core intersection in oil slick district, the large I of pressure that the second wireless pressure sensor detects is divided into following two kinds of situations:
Work as p
2> ρ
oilh
2time, the top in oil slick district is that oil reservoir bottom is waste water layer, when in waste water, oleaginousness is few, while particularly bringing into operation, complete oil slick floor likely can't be formed at the top in oil slick district, at this moment oil slick district is all almost waste water layer, and when waste water surface forms after complete oil slick layer, the top in oil slick district is that waste oil floor bottom is waste water layer, i.e. p
2> ρ
oilh
2time oil slick layer thickness be less than h
2; If the waste water layer thickness of establishing in oil slick district is: δ, the thickness of oil slick layer is: (h
2-δ), so, the pressure p that now the second wireless pressure sensor detects
2can be represented by the formula:
P
2=ρ
waterδ+ρ
oil(h
2-δ)=ρ
oilh
2+ (ρ
water-ρ
oil) δ > ρ
oilh
2
So pressure p that the second wireless pressure sensor detects
2> ρ
oilh
2;
Work as p
2=ρ
oilh
2time, now whole oil slick district is all oil slick.
3. the device of removing oil slick in waste water based on ultrasonic liquid leveller and pressure transmitter as claimed in claim 1 or 2, it is characterized in that, in this device removal oily(waste)water based on oil slick in ultrasonic liquid leveller and pressure transmitter removal waste water, the method for oil slick and sand setting comprises the following steps:
Step 1, when work starts, the 3rd magnetic valve is opened in central control unit indication, now other magnetic valve is all in closing condition, pending oil-containing, sand sewage enter into water inlet pipe or squeeze into pump from ground gravity flow, through water inlet pipe, deliver to sewage water distributor, then sewage water distributor a side of the middle and lower part, sand setting district of oil slick sand setting case longitudinally, the direction of vertical paper is distributed sewage uniformly;
Step 2, as the position of wireless ultrasonic tank gage indication liquid level arrival oil slick district upper end liquid level line, simultaneously the second wireless pressure sensor indicator pressure p
2> ρ
oilh
2and the data line that the pressure data that the liquid level data recording of wireless ultrasonic liquidometer indication and the second wireless pressure sensor record is connected with central control unit separately by them is transferred to after central control unit, the second magnetic valve is opened in central control unit (implant procedure in advance) indication, close the 3rd magnetic valve sewage simultaneously and enter and stop, the sewage after oil slick sand setting flows into without oil tank after entering water shoot by header more voluntarily; When the liquid level of wireless ultrasonic tank gage indication oil slick sand setting case and the top in sloping plate deposition district are when consistent, central control unit indicates and cuts out the second magnetic valve, opens the 3rd magnetic valve simultaneously, and sewage continues to flow into oil slick sand setting case;
Step 3, as the position of wireless ultrasonic tank gage indication liquid level arrival oil slick district upper end liquid level line, simultaneously the second wireless pressure sensor indicator pressure p
2=ρ
oilh
2and the data line that the pressure data that the liquid level data recording of wireless ultrasonic liquidometer indication and the second wireless pressure sensor record is connected with central control unit separately by them is transferred to after central control unit, the 4th magnetic valve is opened in central control unit indication, close the 3rd magnetic valve sewage simultaneously and stop entering, oil slick enters oil slick reception tank through oil exit pipe gravity flow; When the liquid level of wireless ultrasonic tank gage indication oil slick sand setting case and the top of oil exit pipe are when consistent, to close the 4th magnetic valve and open the 3rd magnetic valve simultaneously, sewage continues to enter oil slick sand setting case;
Step 4, when the first wireless pressure sensor indication without the pressure of oil tank is: p
1=ρ
waterh
1, and while these data being passed to central control unit by data line, the first magnetic valve is opened in central control unit indication, the sewage after oil removing sand setting pumps into lower road sewage disposal operation through drinking-water pipe; When the first wireless pressure sensor indication is less than a certain predefined value without the pressure of oil tank, central control unit indicates and cuts out the first magnetic valve;
Step 5, when the 3rd wireless pressure sensor, indicating the pressure of oil slick reception tank is p
3=ρ
oilh
3time, central control unit indication is opened the 5th magnetic valve oil slick and is pumped into waste oil collecting barrel through under meter and oil pick-up tube, simultaneously under meter by the waste oil quantity that enters waste oil collecting barrel by wireless network transmissions to Surveillance center; When the pressure of the 3rd wireless pressure sensor indication oil slick reception tank is less than a certain predefined value, the 5th magnetic valve is closed in central control unit indication.
4. the device based on oil slick in ultrasonic liquid leveller and pressure transmitter removal waste water as claimed in claim 1, is characterized in that, is set to prevent that waste oil is without the removed sealing cover of under meter.
5. the device based on oil slick in ultrasonic liquid leveller and pressure transmitter removal waste water as claimed in claim 1, is characterized in that, the aeration head preventing without oil tank and the fouling of oil slick sand setting case water body is set.
6. the device of removing oil slick in waste water based on ultrasonic liquid leveller and pressure transmitter as claimed in claim 1, it is characterized in that, transverse jet device laterally between two in opposite directions jet make the waste water at oil removing sand setting case middle part relatively mobile, increase collision opportunity between liquid particle, accelerate the floating of waste oil, also increased the ratio of floating waste oil simultaneously.
7. the device based on oil slick in ultrasonic liquid leveller and pressure transmitter removal waste water as claimed in claim 1, is characterized in that, adopts RISEN wireless ultrasonic liquidometer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410239846.0A CN104003473B (en) | 2014-05-30 | 2014-05-30 | The device of oil slick in waste water is removed based on ultrasonic liquid leveller and pressure transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410239846.0A CN104003473B (en) | 2014-05-30 | 2014-05-30 | The device of oil slick in waste water is removed based on ultrasonic liquid leveller and pressure transmitter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104003473A true CN104003473A (en) | 2014-08-27 |
| CN104003473B CN104003473B (en) | 2016-03-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
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|---|---|
| CN104003473B (en) | 2016-03-09 |
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