CN210855363U - Air floating device of oil separator - Google Patents
Air floating device of oil separator Download PDFInfo
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- CN210855363U CN210855363U CN201921418083.0U CN201921418083U CN210855363U CN 210855363 U CN210855363 U CN 210855363U CN 201921418083 U CN201921418083 U CN 201921418083U CN 210855363 U CN210855363 U CN 210855363U
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Abstract
The utility model discloses an oil separator air supporting device. The method comprises the following steps: the device comprises a filter head, a water inlet pipe, a water inlet flange, a water inlet adjusting valve, a water inlet loose joint, a thread joint, a water inlet hose, a vacuum meter, a pressure gauge, a water outlet hose, an adjustable gas flowmeter, a gas-liquid pump, a separating tank, a box body, a water outlet loose joint, a water outlet adjusting valve, a water outlet flange, a water outlet pipe, a releaser, a support plate, an air inlet pipe, a pressure hose and a vacuum hose. The gas-liquid pump is fixedly arranged on the bottom plate of the box body through a support plate, the gas-liquid pump can simultaneously suck gas and mix water, a water inlet of the pump body is connected with a water inlet pipe, and an adjusting and connecting component is arranged on the water inlet pipe; the delivery port of the pump body is provided with a separating tank for discharging redundant air, the delivery port of the separating tank is connected with a water outlet pipe, an adjusting and connecting component is arranged on the water outlet pipe, and a releaser is arranged at the tail end of the water outlet pipe for releasing micro bubbles into an oil separator box body, so that the function of micro air flotation for removing oil is realized.
Description
Technical Field
The invention relates to the field of sewage treatment, in particular to an air floatation device of an oil separator for treating restaurant wastewater.
Background
The restaurant wastewater contains a large amount of grease and solid residues, and is discharged into a municipal pipe network without treatment, so that the pipeline is easy to block, and the restaurant wastewater also has very bad influence on a rear-end sewage treatment plant. Grease and solid residues in the restaurant wastewater must be separated and removed, and the restaurant wastewater can be discharged into a municipal pipe network after meeting the national discharge standard. Therefore, the oil separator becomes an essential facility for industries such as restaurants, hotels and the like.
As shown in figure 1, restaurant wastewater containing grease and solid residues flows into an automatic slag removal device 102 through a water inlet flange port 101, the solid residues are intercepted by the automatic slag removal device 102 and are discharged into a slag storage barrel 108 through a slag discharge pipe 109, and when the weight of the residues in the barrel reaches a set value, a weight sensing alarm device 107 converts the weight into an electric signal and transmits the electric signal to a control system for alarming when the slag is full. The oily wastewater after removing the solid residues continuously flows into an oil separator box 111, and micro bubbles generated by an oil separator air floatation device 110 accelerate the separation of the grease and the water and float to the liquid surface of an automatic constant-temperature oil collecting cover device 112 to form an oil floating layer. When the oil layer reaches a certain thickness, the oil layer detection device sends a signal, a vacuum pump of the vacuum oil suction device 104 is started to generate negative pressure suction force in the device, the grease is sucked out through the vacuum connecting pipe group 103 and discharged into the oil storage barrel 106 through the oil discharge pipe 105, and when the weight of the grease in the barrel reaches a set value, the weight sensing alarm device 107 converts the weight into an electric signal and transmits the electric signal to the control system to give an oil full alarm. The wastewater after removing the solid residue and the grease is discharged through the water outlet pipe group 113 from the water outlet flange port 114 to reach the standard and enters a municipal pipe network. The water inlet and lack detection probe device 115 installed on the top of the water outlet pipe group 113 can detect that wastewater enters the tank body or lack water in the tank body, and transmits a water inlet or lack water signal to the control system for treatment.
The existing oil separator equipment is not enough in the aspect of applying air flotation to improve the oil-water separation efficiency, and mainly comprises the following aspects:
1. the oil-water separation of most oil separators still stays in a gravity type separation technology, namely, the principle that oil is lighter than water is utilized, the retention time is met in a box body, the oil floats on the water surface, and the purpose of oil-water separation is achieved. However, when the components of the grease in the restaurant wastewater are complex after the physicochemical reaction and the density is changed, the effect of the gravity type oil-water separation technology is not ideal;
2. in addition, a small part of the oil separator is not a real micro-air-flotation technology, and only bubbles with the particle size of more than 1mm are simply injected into water for direct aeration, so that the method has no improvement effect, but turbulence is generated in an oil separator box body to be unfavorable for oil-water separation. The real micro air floatation is that under the high-pressure environment, air is dissolved into water and then is injected into a water body in the tank through a releaser, micro air bubbles with the particle size of 0.02-0.05 mm are generated and adsorbed on oil droplets to increase the buoyancy, and the oil-water separation efficiency is accelerated.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the micro air flotation technology is applied in the oil-water separation process of the oil separator, so that the oil-water separation efficiency is enhanced, and the oil separation effect of the oil separator equipment is improved.
The technical scheme adopted by the invention is as follows: an air floatation device is arranged on the oil separator.
The device includes: the device comprises a filter head, a water inlet pipe, a water inlet flange, a water inlet adjusting valve, a water inlet loose joint, a thread joint, a water inlet hose, a vacuum meter, a pressure gauge, a water outlet hose, an adjustable gas flowmeter, a gas-liquid pump, a separating tank, a box body, a water outlet loose joint, a water outlet adjusting valve, a water outlet flange, a water outlet pipe, a releaser, a support plate, an air inlet pipe, a pressure hose and a vacuum hose.
And after the water inlet pipe penetrates through the box body, a thread joint is welded to be connected with a water inlet hose, and the water inlet pipe is connected to a water inlet of the gas-liquid pump.
The filter head is installed to the tip of inlet tube, prevents that debris in the water from blockking up pipeline and pump body.
The water inlet pipe is welded to penetrate through the water inlet flange, and the water inlet flange is fixedly connected with the oil separator box body, so that the water can be conveniently taken from the box body through the water inlet pipe.
The water inlet pipe is also provided with a water inlet adjusting valve, and the gas-liquid ratio is adjusted by controlling the water inlet flow.
The water inlet pipe is also provided with a water inlet loose joint, so that the device can be very conveniently disassembled during installation and maintenance.
The gas-liquid pump passes through mounting panel fixed mounting on the box bottom plate, and the intake pipe is plugged into with the gas-liquid pump air inlet, and the intake pipe end connection has an adjustable gas flowmeter, can the accurate control mix in the gas proportion in the pump body. The vacuum meter is connected to the water inlet pipe through the vacuum hose, monitors the negative pressure value at the inlet of the pump and ensures that air can be sucked into the pump body.
The separating tank is arranged on an outlet of the gas-liquid pump, and separates out excessive gas which is not dissolved in water and discharges the excessive gas out of the tank body. A pressure monitoring interface is arranged between the pump outlet and the separating tank and is connected to the pressure gauge through a pressure hose, so that the pressure value of the water outlet pipe of the pump can be monitored conveniently.
The separating tank is connected with the thread joint through a water outlet hose and is used for connecting the dissolved gas mixed liquid into a water outlet pipe, and a releaser is arranged at the tail end of the water outlet pipe and releases micro bubbles in the dissolved gas mixed liquid into a water body in the oil separator box.
The outlet pipe still is provided with out water loose joint, play water governing valve, play water flange after wearing out the box, its effect is as follows:
1) the water outlet loose joint enables the device to be very convenient to disassemble during installation and maintenance;
2) the water outlet regulating valve can conveniently control the pressure in the gas-liquid pump body by regulating the water outlet flow;
3) the water outlet flange is fixedly connected with the oil separator box body, so that dissolved gas mixed liquid can be conveniently injected into a water body in the oil separator box.
The top of the box body is provided with an inclined plane, the vacuum meter and the pressure gauge are arranged on the inclined plane, and the numerical value of the meter can be conveniently observed through the inclined angle of the inclined plane.
Advantageous effects
The grease in the restaurant wastewater is subjected to a series of changes after being cooked at high temperature and reacting with a detergent and the like, generates hydrophilicity and is not easy to separate from water. The invention releases tiny air bubbles and oil droplets to attach to the wastewater, changes the specific gravity of the wastewater and leads the wastewater to be separated from water more quickly and efficiently. Therefore, after the oil removal device is adopted, the oil removal efficiency of the oil removal device can be well improved. According to the practical engineering application condition, after the air flotation device is applied, the oil removal rate of the oil separator can be improved by more than 10%, and the air flotation device has a very beneficial effect on standard discharge of waste water, thereby being beneficial to the requirement of environmental protection.
Drawings
Fig. 1 is a diagram of the general assembly of the oil separator.
Fig. 2 is a perspective view of the structure of the present invention (with the front cover of the case removed).
Fig. 3 is an assembled front view of the present invention (with the front cover of the case removed).
Fig. 4 is a sectional view a-a of fig. 3.
In the figure, 1, a filter head, 2, a water inlet pipe, 3, a water inlet flange, 4, a water inlet adjusting valve, 5, a water inlet loose joint, 6, a thread joint, 7, a water inlet hose, 8, a vacuum meter, 9, a pressure meter, 10, a water outlet hose, 11, an adjustable gas flowmeter, 12, a gas-liquid pump, 13, a separating tank, 14, a box body, 15, a water outlet loose joint, 16, a water outlet adjusting valve, 17, a water outlet flange, 18, a water outlet pipe, 19, a releaser, 20, a support plate, 21, an air inlet pipe, 22, a pressure hose, 23 and a vacuum hose are arranged.
The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and should not be construed as limiting the present patent, and any modifications, equivalents, improvements, etc., which are within the spirit and principle of the present invention, should be included in the scope of the claims of the present invention.
Detailed Description
As shown in figures 2, 3 and 4,
after the water inlet pipe 2 penetrates through the box body 14, a thread joint 6 is welded to be connected with a water inlet hose 7, and the water inlet pipe 2 is connected to a water inlet of the gas-liquid pump 12. The advantage is through the flexible connection of hose, can make the installation location of gas-liquid pump possess more multi freedom.
Furthermore, a filter head 1 is installed at the end of the water inlet pipe 2. The pump has the advantages that sundries in the water inlet are intercepted, and the pipeline at the rear end and the pump body are protected from being blocked.
Furthermore, the water inlet pipe 2 penetrates through a water inlet flange 3 in a welded mode, and the water inlet flange 3 is fixedly connected with the oil separator box body. The advantage is convenient for the inlet tube to get water from the box.
Furthermore, a water inlet regulating valve 4 is also arranged on the water inlet pipe 2. The advantage is that the gas-liquid ratio is adjusted by controlling the inflow rate of water.
Furthermore, a water inlet movable joint 5 is arranged on the water inlet pipe 2. The advantage is very convenient dismantlement when the installation overhauls.
The gas-liquid pump 12 is a core part of the invention and is characterized in that an air inlet is arranged at a water inlet end, air is allowed to be mixed in when water enters, the ratio of water inlet and air inlet can be adjusted according to actual requirements, then the air is dissolved into a water body under a high-pressure environment of a pump shell, and gas in a solution is separated out of the water body through a release device at the tail end of a water outlet pipe, so that micro bubbles with the particle size of 0.02-0.05 mm are generated. For a detailed description, please continue to refer to the following description:
the gas-liquid pump 12 is fixedly installed on a bottom plate of the box body 14 through a support plate 20, the gas inlet pipe 21 is connected with a gas inlet of the gas-liquid pump, and more preferably, the end of the gas inlet pipe 21 is connected with an adjustable gas flowmeter 11, so that the proportion of gas mixed into a pump body can be accurately controlled.
Meanwhile, the vacuum meter 8 is connected to the water inlet pipe 2 through a vacuum hose 23, the negative pressure value at the inlet of the gas-liquid pump is monitored to ensure that air can be sucked, and the indication value of the vacuum meter 8 is controlled to be between-0.01 to-0.02 Mpa usually.
The separation tank 13 is installed at the outlet of the gas-liquid pump 12, and is used for separating and discharging the excessive gas which is not dissolved in the water body out of the tank body, and the excessive gas which is not dissolved in the water body can form large bubbles to influence the air floatation effect.
Preferably, a pressure monitoring interface is arranged between the pump outlet and the separation tank 13 and is connected to the pressure gauge 9 through a pressure hose 22, so that the pressure value of the water outlet pipe opening can be conveniently monitored, and the indication value of the pressure gauge 9 is controlled between 4.0 and 5.0MPa usually.
Furthermore, the separating tank 13 is connected with the thread joint 6 through the water outlet hose 10, and the advantage is that the installation and positioning of the separating tank and the pipeline have more freedom through the flexible connection of the hose.
The water outlet pipe 18 penetrates out of the box body 14 and is provided with a water outlet loose joint 15, and the water outlet loose joint has the advantage that the water outlet loose joint is very convenient to disassemble during installation and maintenance.
Furthermore, the water outlet pipe 18 is also provided with a water outlet regulating valve 16, which has the advantage that the pressure in the gas-liquid pump body can be conveniently controlled by regulating the water outlet flow.
Preferably, the water outlet pipe 18 penetrates through the water outlet flange 17 in a welding mode, and the water outlet flange 17 is fixedly connected with the oil separator box body. The advantage is that the mixed liquid dissolved with gas can be injected into the box body conveniently.
Further, a releaser 19 is arranged at the tail end of the water outlet pipe 18. The releaser is generally horizontally arranged, and has the advantage that the precipitated micro-bubbles can be more uniformly released into the water body in the tank.
Preferably, the top of the box body 14 is provided with an inclined plane f, and the vacuum gauge 8 and the pressure gauge 9 are arranged on the inclined plane f, so that the box is attractive and convenient for observing the dial numerical value.
The foregoing is only a preferred embodiment of the present invention, and it will be apparent to those skilled in the art that various modifications and technical extensions can be made without departing from the principle of the present invention, and these modifications and technical extensions should also be construed as the scope of the present invention.
Claims (5)
1. An oil separator air flotation device comprises: the utility model provides a filter head (1), inlet tube (2), intake flange (3), intake governing valve (4), intake loose joint (5), thread tooth connects (6), intake hose (7), vacuum gauge (8), manometer (9), play water hose (10), adjustable gas flowmeter (11), gas-liquid pump (12), knockout drum (13), box (14), play water loose joint (15), play water governing valve (16), play water flange (17), outlet pipe (18), releaser (19), mounting panel (20), intake pipe (21), pressure hose (22), vacuum hose (23), its characterized in that:
after the water inlet pipe (2) penetrates through the box body (14), a thread joint (6) is welded to be connected with a water inlet hose (7), and the water inlet pipe (2) is connected to a water inlet of the gas-liquid pump (12);
the end part of the water inlet pipe (2) is provided with a filter head (1);
the water inlet pipe (2) penetrates through the water inlet flange (3) in a welded mode, and the water inlet flange (3) is fixedly connected with the oil separator box body;
the water inlet pipe (2) is also provided with a water inlet regulating valve (4);
the water inlet pipe (2) is also provided with a water inlet loose joint (5);
gas-liquid pump (12) pass through mounting panel (20) fixed mounting in box (14) the inside, and intake pipe (21) and gas-liquid pump air inlet are plugged into, and intake pipe (21) end connection has one adjustable gas flowmeter (11), and vacuum meter (8) connect to inlet tube (2) through vacuum hose (23), knockout drum (13) are installed on the export of gas-liquid pump (12).
2. The oil separator air flotation device according to claim 1, characterized in that: a pressure monitoring interface is arranged between the pump outlet and the separating tank (13) and is connected to the pressure gauge (9) through a pressure hose (22).
3. The oil separator air flotation device according to claim 1, characterized in that: the separating tank (13) is connected with the thread joint (6) through a water outlet hose (10).
4. The oil separator air flotation device according to claim 1, further comprising:
the water outlet pipe (18) penetrates out of the box body (14) and is provided with a water outlet loose joint (15);
the water outlet pipe (18) is also provided with a water outlet regulating valve (16);
the water outlet pipe (18) penetrates through the water outlet flange (17) in a welded mode, and the water outlet flange (17) is fixedly connected with the oil separator box body;
the tail end of the water outlet pipe (18) is provided with a releaser (19), and the releaser is horizontally arranged.
5. The oil separator air flotation device according to claim 1, characterized in that: the top of the box body (14) is provided with an inclined plane, and the vacuum gauge (8) and the pressure gauge (9) are arranged on the inclined plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921418083.0U CN210855363U (en) | 2019-08-29 | 2019-08-29 | Air floating device of oil separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921418083.0U CN210855363U (en) | 2019-08-29 | 2019-08-29 | Air floating device of oil separator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210855363U true CN210855363U (en) | 2020-06-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921418083.0U Active CN210855363U (en) | 2019-08-29 | 2019-08-29 | Air floating device of oil separator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210855363U (en) |
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2019
- 2019-08-29 CN CN201921418083.0U patent/CN210855363U/en active Active
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