CN104003473B - The device of oil slick in waste water is removed based on ultrasonic liquid leveller and pressure transmitter - Google Patents
The device of oil slick in waste water is removed based on ultrasonic liquid leveller and pressure transmitter Download PDFInfo
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- CN104003473B CN104003473B CN201410239846.0A CN201410239846A CN104003473B CN 104003473 B CN104003473 B CN 104003473B CN 201410239846 A CN201410239846 A CN 201410239846A CN 104003473 B CN104003473 B CN 104003473B
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Abstract
The invention discloses a kind of device removing oil slick in waste water based on ultrasonic liquid leveller and pressure transmitter, comprising: without oil tank, oil slick sand setting case, sloping plate deposition district, sand setting district, sewage water distributor, oil slick reception tank, the first wireless pressure sensor, transverse jet device, the second wireless pressure sensor, oil slick district, wireless ultrasonic tank gage etc.; Adopt wireless pressure sensor and wireless ultrasonic tank gage, decrease the unreliability that the loaded down with trivial details and line fault that connects up in engineering causes, also reduce wiring cost simultaneously.The present invention is also provided with wireless ultrasonic tank gage, indirectly distinguish that oil slick district is all oil slick or is partly oil slick by the synergy of wireless pressure sensor and wireless ultrasonic tank gage, when distinguishing that oil slick district is all oil slick, the oil slick layer that automatically top of oil slick sand setting case can be swum in more than the water surface is removed automatically.In addition structure of the present invention more simple, succinct and make, easy for installation.
Description
Technical field
The invention belongs to oiliness sewage treatment technical field, particularly relate to a kind of device removing oil slick in waste water based on ultrasonic liquid leveller and pressure transmitter.
Background technology
Oily substance is entered in water by different approaches and forms oily(waste)water, because it has a large capacity and a wide range, and the feature being difficult to process becomes and a kind ofly endangers serious waste water, its source mainly contains: the oil production in petroleum industry and the processing of oil product, refinement, storage and transport; Carwash in transport industry, the oily(waste)water of the discharge such as the oil-washing tank of railway locomotive depot; The steel rolling water produced in the machinofacture course of processing, the waste water based on oil in water emulsion such as lubricating oil; Also a large amount of oily substances is contained in addition in catering trade, textile industry, food-processing industry and other manufacturing waste water.
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, be greater than 100 μm to be easy to emerge, form oil film and oil reservoir, the oil bead diameter of dispersed oil is generally 10 ~ 100 μm and is suspended in water with small particle, unstable, often oil slick is formed after leaving standstill for some time, oil in water emulsion is owing to being formed containing tensio-active agent in water, oil droplet size is minimum, be generally less than 10 μm, dissolving oil is a kind of oil be chemically dissolved in water, its particle diameter can reach several nanometer.
At present, the processing mode of the oil slick in oily(waste)water, dispersed oil and oil in water emulsion (accounting for more than 90% of whole oleaginousness), all manage to make different states oil swims on water face, then adopt oil-scraping device, skimming plant, Oil sucking device to be separated with water by these oily substances, but at least there are several in following several shortcoming in these cleaners:
1. can not strict differences profit when removing oil slick, particularly when oleaginousness is less, easily oil, water are removed together, namely 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 had once applied for following three patents of invention with function of the same race: (1) " oil slick in a kind of automatic removal oily(waste)water and the method for sand setting and device " (is authorized, invention number: ZL201210148765.0), (2) (application number: 201210148784.3) of " removing method and the device of oil slick in waste water and sand setting based on extraordinary fluid level measuring instrument ", (3) " remove method and the device of oil slick and sand setting in waste water based on oil and electrical conductivity of water " (to authorize, invention number: ZL201210148783.9).The present invention is on the basis of above three inventions, based on different principle, and sisters' invention of the another Xiang Xin of invention group Major Members.But existing device exists the unreliability that the loaded down with trivial details and line fault that connects up in engineering causes, 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 removing oil slick in waste water based on ultrasonic liquid leveller and pressure transmitter, 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, while wiring cost higher problem.
The embodiment of the present invention is achieved in that a kind of device removing oil slick in waste water based on ultrasonic liquid leveller and pressure transmitter, should comprise based on the device of 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, first wireless pressure sensor, drinking-water pipe, first magnetic valve, water shoot, second magnetic valve, transverse jet device, second wireless pressure sensor, oil slick district, oil slick district upper end liquid level line, wireless ultrasonic tank gage, water inlet pipe, 3rd magnetic valve, 4th magnetic valve, oil exit pipe, oil pick-up tube, sealing cover, under meter, 5th magnetic valve, 3rd wireless pressure sensor,
Aeration head is separately positioned on without bottom oil tank and the top in the sand setting district of oil slick sand setting case, and is in without mid-way on the upper side bottom oil tank and bottom oil slick sand setting case respectively; First wireless pressure sensor is arranged on the left side bottom without oil tank, and drinking-water pipe is arranged on without on the left of oil tank, 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 bottom the sand setting district of oil slick sand setting case, header is arranged on the below on the left of the sloping plate deposition district of oil slick sand setting case, header connection is arranged on the water shoot on the dividing plate in the middle of without oil tank and oil slick sand setting case, 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, second wireless pressure sensor is arranged on the below on the left of the oil slick district of oil slick sand setting case, water inlet pipe is arranged on the right side of oil slick sand setting case, 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, 3rd wireless pressure sensor is arranged on the right side bottom oil slick reception tank, oil pick-up tube is arranged on the right side of oil slick reception tank, 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 judge that the concrete grammar of oil slick was based on the device of oil slick in ultrasonic liquid leveller and pressure transmitter removal waste water:
First: the bottom without oil tank is set to h to the height of the bottom of water shoot
1, the thickness in oil slick district is set to h
2, the bottom of oil slick reception tank is set to 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, pressure shown by the 3rd wireless pressure sensor are set to p respectively
1, p
2, p
3, the density of waste water is set to ρ
water, the density of oil slick is set to ρ
oil;
Secondly, oil slick sand setting case is in operation, and when the highest liquid level arrives the position of the liquid level line of upper end, oil slick district, according to the difference of core intersection in oil slick district, the large I of the 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 oil reservoir bottom is waste water layer, when in waste water, oleaginousness is few, when 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 after wastewater surface forms complete oil slick layer, the top in oil slick district is waste oil floor bottom is waste water layer, namely the thickness of oil slick layer is less than h
2.If set waste water layer thickness in oil slick district as: δ, then the thickness of oil slick layer is: (h
2-δ).So, the now pressure p that detects of the second wireless pressure sensor
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 the 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, should comprise the following steps based on the method for oil slick and sand setting in the device removal oily(waste)water of oil slick in ultrasonic liquid leveller and pressure transmitter removal waste water:
Step one, when work starts, the 3rd magnetic valve (being connected by control circuit) is opened in central control unit instruction between the two, now other magnetic valve is all in closing condition, pending oil-containing, sand sewage enter into water inlet pipe from ground gravity flow or squeeze into pump, deliver to sewage water distributor through water inlet pipe, then sewage water distributor is in the longitudinal direction of the side of the middle and lower part, sand setting district of oil slick sand setting case, and sewage distributes by the direction of vertical paper uniformly;
Step 2, when wireless ultrasonic tank gage instruction liquid level arrives the position of oil slick district upper end liquid level line, the second wireless pressure sensor indicator pressure p simultaneously
2> ρ
oilh
2and the data line transfer that the liquid level data that wireless ultrasonic liquidometer records and the pressure data that the second wireless pressure sensor records are connected with central control unit separately by them is after central control unit, the second magnetic valve (being connected by control circuit) is opened in central control unit (in advance implant procedure) instruction between the two, close the 3rd magnetic valve sewage simultaneously and enter stopping, 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 instruction oil slick sand setting case is consistent with the top in sloping plate deposition district, central control unit instruction closedown second magnetic valve, open the 3rd magnetic valve, sewage continues to flow into oil slick sand setting case simultaneously;
Step 3, when wireless ultrasonic tank gage instruction liquid level arrives the position of oil slick district upper end liquid level line, the second wireless pressure sensor indicator pressure p simultaneously
2=ρ
oilh
2and the data line transfer that the liquid level data that wireless ultrasonic liquidometer records and the pressure data that the second wireless pressure sensor records are connected with central control unit separately by them is after central control unit, the 4th magnetic valve (being connected by control circuit) is opened in central control unit instruction between the two, close the 3rd magnetic valve sewage to stop entering, oil slick enters oil slick reception tank through oil exit pipe gravity flow simultaneously; When the liquid level of wireless ultrasonic tank gage instruction oil slick sand setting case is consistent with the top of oil exit pipe, 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 indicates the pressure without oil tank is: p
1=ρ
waterh
1, and when 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 instruction between the two, and the sewage after oil removing sand setting pumps into lower road sewage disposal operation through drinking-water pipe; When the first wireless pressure sensor instruction is less than a certain value preset without the pressure of oil tank (this value is close to 0), central control unit indicates cut out first magnetic valve;
Step 5, when the pressure of the 3rd wireless pressure sensor instruction oil slick reception tank is p
3=ρ
oilh
3time, central control unit instruction 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 enter waste oil collecting barrel waste oil quantity by wireless network transmissions to Surveillance center; When the pressure of the 3rd wireless pressure sensor instruction oil slick reception tank is less than a certain value preset (this value is close to 0), central control unit instruction closedown the 5th magnetic valve.
Further, be set to prevent waste oil without the removed sealing cover of under meter.
Further, the aeration head preventing from fouling without oil tank and oil slick sand setting case water body is set to.
Further, transverse jet device laterally between two in opposite directions jet the waste water in the middle part of oil removing sand setting case is flowed relatively, increase collision opportunity between liquid particle.
Further, RISEN wireless ultrasonic liquidometer is adopted.
The device removing oil slick in waste water based on ultrasonic liquid leveller and pressure transmitter provided by the invention, adopts wireless pressure sensor, decreases the unreliability that the loaded down with trivial details and line fault that connects up in engineering causes, also reduces wiring cost simultaneously.The present invention is also provided with wireless ultrasonic tank gage, indirectly distinguish that oil slick district is all oil slick or is partly oil slick by the synergy of wireless pressure sensor and wireless ultrasonic tank gage, when distinguishing that oil slick district is all oil slick, the oil slick layer that automatically top of oil slick sand setting case can be swum in more than the water surface is removed automatically.In addition structure of the present invention more simple, succinct and make, easy for installation.
Accompanying drawing explanation
Fig. 1 is the apparatus structure schematic diagram removing oil slick in waste water based on ultrasonic liquid leveller and pressure transmitter 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 clearly understand, 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, be 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 embodiment of the present invention the device removing oil slick in waste water based on ultrasonic liquid leveller and pressure transmitter primarily of:
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, first wireless pressure sensor 10, drinking-water pipe 11, first magnetic valve 12, water shoot 13, second magnetic valve 14, transverse jet device 15, 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, 3rd magnetic valve 21, 4th magnetic valve 22, oil exit pipe 23, oil pick-up tube 24, sealing cover 25, 5th magnetic valve 26, under meter 27, 3rd wireless pressure sensor 28 forms,
Aeration head 2 is separately positioned on without bottom the oil tank 1 and top in sand setting district 6 of oil slick sand setting case, and is in without the bottom of oil tank 1 and the bottom of oil slick sand setting case 4 mid-way on the upper side respectively; First wireless pressure sensor 10 is arranged on the left side bottom without oil tank 1, 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;
Oil slick sand setting case 4 is arranged on the right side 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 bottom the sand setting district 6 of oil slick sand setting case, header 3 is arranged on the below on the left of the sloping plate deposition district 5 of oil slick sand setting case, header 3 connection is arranged on without oil tank 1 and the water shoot 13 on the dividing plate of oil slick sand setting case 4, 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, second wireless pressure sensor 16 is arranged on the below on the left of the oil slick district 17 of oil slick sand setting case, water inlet pipe 20 is arranged on the right side of oil slick sand setting case 4, 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 4,3rd wireless pressure sensor 28 is arranged on the right side bottom oil slick reception tank 9, oil pick-up tube 24 is arranged on the right side of oil slick reception tank 9,5th 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 oil slick sand setting case 4 with on the dividing plate of 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 instruction 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, deliver to sewage water distributor 8 through water inlet pipe 20, then sewage distributes in the longitudinal direction (direction of vertical paper) of the side of the middle and lower part, sand setting district of oil slick sand setting case by sewage water distributor 8 uniformly.
2. when wireless ultrasonic tank gage 19 indicates liquid level to arrive the position of oil slick district upper end liquid level line 18, the second wireless pressure sensor indicator pressure p simultaneously
2> ρ
oilh
2and the data line transfer that the liquid level data that wireless ultrasonic liquidometer records and the pressure data that the second wireless pressure sensor records are connected with central control unit separately by them is 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) instruction between the two, close the 3rd magnetic valve 21 sewage simultaneously and enter stopping, the sewage after oil slick sand setting flows into without oil tank 1 after entering water shoot 13 by header 3 more voluntarily; When wireless ultrasonic tank gage 19 indicates the liquid level of oil slick sand setting case 4 consistent with the top in sloping plate deposition district 5, central control unit instruction cut out second magnetic valve 14, open the 3rd magnetic valve 21, sewage continues to flow into oil slick sand setting case 4 simultaneously.
3. when wireless ultrasonic tank gage 19 indicates liquid level to arrive the position of oil slick district upper end liquid level line 18, the second wireless pressure sensor indicator pressure p simultaneously
2=ρ
oilh
2and the data line transfer that the liquid level data that wireless ultrasonic liquidometer records and the pressure data that the second wireless pressure sensor records are connected with central control unit separately by them is after central control unit, the 4th magnetic valve 22 (being connected by control circuit) is opened in central control unit instruction between the two, close the 3rd magnetic valve 21 sewage to stop entering, oil slick enters oil slick reception tank 9 through oil exit pipe 23 gravity flow simultaneously; When wireless ultrasonic tank gage 19 indicates the liquid level of oil slick sand setting case 4 consistent with the top of oil exit pipe 23, 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 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) instruction 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 indicates the pressure without oil tank 1 to be less than a certain value (this value is close to 0) that presets, central control unit (pre-entering the computer of programmed) indicates cut out first magnetic valve 12.
5. when the 3rd wireless pressure sensor 28 indicates the pressure of oil slick reception tank 9 to be p
3=ρ
oilh
3time, central control unit (pre-entering the computer of programmed) instruction 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 enter waste oil collecting barrel waste oil quantity by wireless network transmissions to Surveillance center.Such Surveillance center just promptly and accurately can grasp the quantity that waste oil produces, to allocate in time.If by this application of installation in the diet place such as Large-scale Hotel, restaurant, Long-distance Control and management can be carried out to the kitchen waste oil that it produces, and then control the raw material of sewer oil from source, guarantee that common people are able to eat relieved oil.When the 3rd wireless pressure sensor 28 indicates the pressure of oil slick reception tank 9 to be less than a certain value (this value is close to 0) that presets, central control unit (pre-entering the computer of programmed) indicates cut out the 5th magnetic valve 26.
6. sealing cover 25 is for preventing waste oil removed and arrange without under meter 27.Its effect ensures waste oil collected by this device all after under meter 26 measures, and allocates under the monitoring of Surveillance center.
7. establishing small underwater aeration head 2 for anti-water-stop body fouls respectively without oil tank and oil slick sand setting case.Summer every three days central control unit (pre-entering the computer of programmed) instruction 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, at the middle part of oil removing sand setting case, some groups of transverse jet devices 15 facing each other are installed especially, transverse jet device 15 laterally between two in opposite directions jet the waste water in the middle part of oil removing sand setting case is flowed (also comprise other and be difficult to the simple complex flow described) relatively, add the collision between liquid particle, thus be the chance that most of dispersed oil and the more short grained oil in water emulsion of part create the elaioleucite being more combined into larger particles, then these elaioleucites float to the top of liquid level naturally, thus improve oil removal efficiency about 3%.The more important thing is that this part oil removed is dispersed oil and oil in water emulsion more, usually they are difficult to remove, when entering next procedure, bring a very large difficult problem (no matter because being dispersed oil or oil in water emulsion is all the organism being difficult to degrade, 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 part.It is made up 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, in acceptance point decoding count pick up and display object bit digital.Its transmitting and receiving all adopt 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, thus reaches the object of telemeasurement thing position.
The transmission over radio of wireless ultrasonic liquidometer owing to adopting, solve some wiring difficulty, distance, high in cost of production problems, therefore be widely used in home dwelling, school, factory, hotel, mansion, the tower pressurized water supply of tap water of building and rivers, well to fetch water and control, and water supply, fire-fighting, light industry, printing and dyeing, chemical fibre, papermaking, chemical industry, food, beverage, brewage, refine sugar, cultivate, industrial and mineral, agricultural, the plumbing of the industry such as water treatment and other production liquid supply discharge control or upper and lower limit liquid level warning automatically.
The present invention is the device (as shown in Figure 1) removing oil slick in waste water based on ultrasonic liquid leveller and pressure transmitter.The present invention is the changing conditions accurately grasping oil slick sand setting case 4 top floating oil layer thickness, and be provided with wireless pressure sensor in the lower end, oil slick district of oil slick sand setting case especially, the top in oil slick district is provided with wireless ultrasonic tank gage.Indirectly distinguish that oil slick district is all oil slick or is partly oil slick by the synergy of wireless pressure sensor and wireless ultrasonic tank gage.And then when distinguishing that oil slick district is all oil slick, the oil slick layer that automatically top of oil slick sand setting case can be swum in more than the water surface is removed automatically, and concrete method is:
First: the bottom without oil tank is set to h to the height of the bottom of water shoot
1, the thickness in oil slick district is set to h
2, the bottom of oil slick reception tank is set to 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, pressure shown by the 3rd wireless pressure sensor are set to p respectively
1, p
2, p
3, the density of waste water is set to ρ
water, the density of oil slick is set to ρ
oil.
Oil slick sand setting case is in operation, and when the highest liquid level arrives the position of the liquid level line of upper end, oil slick district, according to the difference of core intersection in oil slick district, the large I of the 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 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 after wastewater surface forms complete oil slick layer, the top in oil slick district is waste oil floor bottom is waste water layer, and namely the thickness of oil slick layer is less than h
2.If set waste water layer thickness in oil slick district as: δ, then the thickness of oil slick layer is: (h
2-δ).So, the now pressure p that detects of the second wireless pressure sensor
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 the 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 removing oil slick in waste water based on ultrasonic liquid leveller and pressure transmitter of the present invention is automatically separated with waste water with sand by oil by the synergy of wireless pressure sensor with wireless ultrasonic tank gage; Structure is simple, easy to operate, improves 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 amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. remove a device for oil slick in waste water based on ultrasonic liquid leveller and pressure transmitter, it is characterized in that, should comprise based on the device of 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, first wireless pressure sensor, drinking-water pipe, first magnetic valve, water shoot, second magnetic valve, transverse jet device, second wireless pressure sensor, oil slick district, oil slick district upper end liquid level line, wireless ultrasonic tank gage, water inlet pipe, 3rd magnetic valve, 4th magnetic valve, oil exit pipe, oil pick-up tube, sealing cover, under meter, 5th magnetic valve, 3rd wireless pressure sensor,
Aeration head is separately positioned on without bottom oil tank and the top in the sand setting district of oil slick sand setting case, and is in without mid-way on the upper side bottom oil tank and bottom oil slick sand setting case respectively; First wireless pressure sensor is arranged on the left side bottom without oil tank, and drinking-water pipe is arranged on without on the left of oil tank, 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 bottom the sand setting district of oil slick sand setting case, header is arranged on the below on the left of the sloping plate deposition district of oil slick sand setting case, header connection is arranged on the water shoot on the dividing plate in the middle of without oil tank and oil slick sand setting case, 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, second wireless pressure sensor is arranged on the below on the left of the oil slick district of oil slick sand setting case, water inlet pipe is arranged on the right side of oil slick sand setting case, 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, 3rd wireless pressure sensor is arranged on the right side bottom oil slick reception tank, oil pick-up tube is arranged on the right side of oil slick reception tank, 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. remove the device of oil slick in waste water as claimed in claim 1 based on ultrasonic liquid leveller and pressure transmitter, it is characterized in that, should judge that the concrete grammar of floating oil layer thickness was based on the device of oil slick in ultrasonic liquid leveller and pressure transmitter removal waste water:
First, setting is h without the bottom of oil tank 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, pressure shown by 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 the liquid level line of upper end, oil slick district, according to the difference of core intersection in oil slick district, the large I of the 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 oil reservoir bottom is waste water layer, when in waste water, oleaginousness is few, when 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 after wastewater surface forms complete oil slick layer, the top in oil slick district is 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 set waste water layer thickness in oil slick district as: δ, then the thickness of oil slick layer is: (h
2-δ), so, the now pressure p that detects of the second wireless pressure sensor
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 the 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 oil slick in waste water is removed as claimed in claim 1 or 2 based on ultrasonic liquid leveller and pressure transmitter, it is characterized in that, should comprise the following steps based on the method for oil slick and sand setting in the device removal oily(waste)water of oil slick in ultrasonic liquid leveller and pressure transmitter removal waste water:
Step one, when work starts, the 3rd magnetic valve is opened in central control unit instruction, now other magnetic valve is all in closing condition, pending oil-containing, sand sewage enter into water inlet pipe from ground gravity flow or squeeze into pump, deliver to sewage water distributor through water inlet pipe, then sewage water distributor is in the longitudinal direction of the side of the middle and lower part, sand setting district of oil slick sand setting case, and sewage distributes by the direction of vertical paper uniformly;
Step 2, when wireless ultrasonic tank gage instruction liquid level arrives the position of oil slick district upper end liquid level line, the second wireless pressure sensor indicator pressure p simultaneously
2> ρ
oilh
2and the data line transfer that the liquid level data recorded of wireless ultrasonic liquidometer instruction and the pressure data that records of the second wireless pressure sensor are connected with central control unit separately by them is after central control unit, the second magnetic valve is opened in central control unit instruction, close the 3rd magnetic valve sewage simultaneously and enter stopping, 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 instruction oil slick sand setting case is consistent with the top in sloping plate deposition district, central control unit instruction closedown second magnetic valve, open the 3rd magnetic valve, sewage continues to flow into oil slick sand setting case simultaneously;
Step 3, when wireless ultrasonic tank gage instruction liquid level arrives the position of oil slick district upper end liquid level line, the second wireless pressure sensor indicator pressure p simultaneously
2=ρ
oilh
2and the data line transfer that the liquid level data recorded of wireless ultrasonic liquidometer instruction and the pressure data that records of the second wireless pressure sensor are connected with central control unit separately by them is after central control unit, the 4th magnetic valve is opened in central control unit instruction, close the 3rd magnetic valve sewage to stop entering, oil slick enters oil slick reception tank through oil exit pipe gravity flow simultaneously; When the liquid level of wireless ultrasonic tank gage instruction oil slick sand setting case is consistent with the top of oil exit pipe, 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 indicates the pressure without oil tank is: p
1=ρ
waterh
1, and when these data being passed to central control unit by data line, the first magnetic valve is opened in central control unit instruction, and the sewage after oil removing sand setting pumps into lower road sewage disposal operation through drinking-water pipe; When the first wireless pressure sensor indicates the pressure without oil tank to be less than a certain value preset, central control unit instruction closedown first magnetic valve;
Step 5, when the pressure of the 3rd wireless pressure sensor instruction oil slick reception tank is p
3=ρ
oilh
3time, central control unit instruction 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 enter waste oil collecting barrel waste oil quantity by wireless network transmissions to Surveillance center; When the pressure of the 3rd wireless pressure sensor instruction oil slick reception tank is less than a certain value preset, central control unit instruction closedown the 5th magnetic valve.
4. remove as claimed in claim 1 the device of oil slick in waste water based on ultrasonic liquid leveller and pressure transmitter, it is characterized in that, be set to prevent waste oil without the removed sealing cover of under meter.
5. remove the device of oil slick in waste water as claimed in claim 1 based on ultrasonic liquid leveller and pressure transmitter, it is characterized in that, the aeration head preventing from fouling without oil tank and oil slick sand setting case water body is set.
6. the device of oil slick in waste water is removed as claimed in claim 1 based on ultrasonic liquid leveller and pressure transmitter, it is characterized in that, transverse jet device laterally between two in opposite directions jet the waste water in the middle part of oil removing sand setting case is flowed relatively, increase collision opportunity between liquid particle, accelerate the floating of waste oil, also increase the ratio of floating waste oil simultaneously.
7. remove the device of oil slick in waste water as claimed in claim 1 based on ultrasonic liquid leveller and pressure transmitter, it is characterized in that, adopt 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 |
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| 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 |
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| Publication Number | Publication Date |
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| CN104003473B true CN104003473B (en) | 2016-03-09 |
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| CN107512824B (en) * | 2017-08-18 | 2020-07-17 | 淮海工学院 | Intelligent monitoring control system of distributed sewage treatment equipment |
| CN110342609A (en) * | 2019-07-22 | 2019-10-18 | 深圳市中威厨房设备有限公司 | Oily-water seperating equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102659213A (en) * | 2012-05-15 | 2012-09-12 | 泰山医学院 | Method and device for removing floating oil and settled sand in waste water based on special type liquid level measuring apparatus |
| CN102659212A (en) * | 2012-05-15 | 2012-09-12 | 泰山医学院 | Method and device for removing floating oil and settling sand in wastewater based on electrical conductivities of oil and water |
| CN102659211A (en) * | 2012-05-15 | 2012-09-12 | 泰山医学院 | Method and device for automatically removing floating oil and settled sand from oil-containing wastewater |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7117738B2 (en) * | 2003-10-02 | 2006-10-10 | Denso Corporation | Liquid level detecting apparatus |
| US8652040B2 (en) * | 2006-12-19 | 2014-02-18 | Valencell, Inc. | Telemetric apparatus for health and environmental monitoring |
| CN203866069U (en) * | 2014-05-30 | 2014-10-08 | 唐惠东 | Device for removing oil slick in wastewater based on ultrasonic level instrument and pressure sensor |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102659213A (en) * | 2012-05-15 | 2012-09-12 | 泰山医学院 | Method and device for removing floating oil and settled sand in waste water based on special type liquid level measuring apparatus |
| CN102659212A (en) * | 2012-05-15 | 2012-09-12 | 泰山医学院 | Method and device for removing floating oil and settling sand in wastewater based on electrical conductivities of oil and water |
| CN102659211A (en) * | 2012-05-15 | 2012-09-12 | 泰山医学院 | Method and device for automatically removing floating oil and settled sand from oil-containing wastewater |
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