CN114291974B - Photocatalytic oxidation treatment process for water for washing vehicle - Google Patents
Photocatalytic oxidation treatment process for water for washing vehicle Download PDFInfo
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- CN114291974B CN114291974B CN202111670531.8A CN202111670531A CN114291974B CN 114291974 B CN114291974 B CN 114291974B CN 202111670531 A CN202111670531 A CN 202111670531A CN 114291974 B CN114291974 B CN 114291974B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
Abstract
The invention belongs to the field of sewage treatment, in particular to a photocatalytic oxidation treatment process for car washing water, car washing wastewater is treated by a sand filter device and then is sent into a photocatalytic oxidizer for oxidation treatment, a photocatalytic oxidation mechanism and a catalyst separation mechanism are arranged in the photocatalytic oxidizer, the catalyst separation mechanism comprises a pipeline and a filter membrane, a pressure storage chamber I and a pressure storage chamber II are arranged in the pipeline, movable plates are arranged on the pressure storage chamber II, the movable plates are fixedly connected through connecting plates, and a button for controlling an alarm unit is fixedly arranged in a detection seat; real-time supervision is carried out to filtration membrane's transmembrane pressure difference through setting up two sets of storage pressure chambers, and after transmembrane pressure difference exceeded the setting value, pressure drove the fly leaf and even the board takes place the displacement for even board and button contact, alarm unit send warning information, remind the staff to carry out maintenance processing to filtration membrane, realized that automatic carries out real-time supervision's function, simple structure, convenient to use to filtration membrane.
Description
Technical Field
The invention belongs to the field of sewage treatment, and particularly relates to a photocatalytic oxidation treatment process for water for washing vehicles.
Background
The existing common treatment method is a photocatalytic oxidation technology, and the mechanism of the treatment method is that a catalyst absorbs light energy under light irradiation, generates electron transition, generates electron-hole pairs, and performs oxidation reduction on pollutants adsorbed on the surface of an object.
A chinese patent publication No. CN109809594A discloses a method and a mechanism for photocatalytic treatment of car washing wastewater, the method for photocatalytic treatment of car washing wastewater comprises collecting car washing wastewater, filtering the car washing wastewater, treating the filtered car washing wastewater with a photocatalytic oxidation device and a photocatalytic light source device, and then discharging the treated car washing wastewater; organic matters such as a surfactant and a flavoring agent can be treated, so that the recycling of waste water is promoted; the inlet water quality requirement of the treatment mechanism is low, and the treatment time of the photocatalytic oxidation device can be flexibly adjusted according to different inlet water loads.
In actual operation, the condition that catalyst particles in the photocatalytic oxidation process are not completely used exists, the catalyst particles are suspended in a water sample and can affect the work of a semiconductor material, the catalyst particles need to be recovered, in the prior art, a filtering membrane is mostly adopted to filter and recover the catalyst particles, after the catalyst particles are used for a long time, the filtering membrane is easy to block, the recovery efficiency of the catalyst particles is reduced, the filtering membrane needs to be checked after shutdown, cleaning agents are added according to the specific condition of the filtering membrane, the filtering membrane is not monitored in real time, the working efficiency is affected, more devices are used, the use cost is high, and the vehicle washing wastewater photocatalytic treatment method and the vehicle washing wastewater treatment mechanism do not effectively solve the problems.
Therefore, the invention provides a photocatalytic oxidation treatment process for water for washing vehicles.
Disclosure of Invention
To remedy the deficiencies of the prior art, at least one of the technical problems set forth in the background is addressed.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a photocatalytic oxidation treatment process for water for washing vehicles, which comprises the following steps:
s1, collecting the car washing wastewater, primarily filtering the car washing wastewater, and filtering sand and suspended matters in the wastewater;
s2, feeding the filtered wastewater into a regulating reservoir to regulate the water quality and the pH value of the wastewater;
s3, delivering the effluent of the regulating reservoir into a hydrolysis acidification pool, carrying out hydrolysis acidification treatment on the wastewater, and regulating the biodegradability of the wastewater;
s4, sending the effluent of the hydrolysis acidification tank into a biochemical reaction tank, wherein the biochemical reaction tank is provided with an anaerobic zone, an anoxic zone and an aerobic zone, and removing COD, ammonia nitrogen, total nitrogen and total phosphorus in the wastewater;
s5, feeding the wastewater treated by the biochemical reaction tank into a sedimentation tank, filtering and separating to obtain sludge sediment and supernatant, discharging the sludge through a sludge discharge port at the bottom of the sedimentation tank, and feeding the supernatant into a sand filter device for filtering;
s6, sending the effluent of the sand filtration device into a photocatalytic oxidizer for oxidation treatment, removing COD in the wastewater, and recovering the catalyst in the photocatalytic oxidizer;
and S7, sending the effluent of the photocatalytic oxidizer into a clean water tank for storage and use.
Preferably, the photocatalytic oxidation device is provided with a photocatalytic oxidation mechanism and a catalyst separation mechanism, the catalyst separation mechanism is provided with a filter membrane, and the catalyst separation mechanism is used for intercepting and recovering catalyst particles. When the device works, wastewater enters the photocatalytic oxidation mechanism for oxidation treatment, then the water after oxidation treatment is sent into the catalyst separation mechanism, catalyst particles are intercepted through the filtering membrane, and the intercepted catalyst is sent back to the photocatalytic oxidation mechanism through the reflux pump.
Preferably, the catalyst separation mechanism is provided with a membrane detection module and a membrane cleaning module, the membrane detection module is used for detecting transmembrane pressure difference of the filtration membrane, and the membrane cleaning module is used for cleaning the filtration membrane. When the device works, when the transmembrane pressure difference of the filtering membrane exceeds a set value, membrane cleaning agents are injected into the catalyst separation mechanism through the membrane cleaning assembly, and the membrane cleaning agents can be one of citric acid, oxalic acid and sodium hypochlorite.
Preferably, catalyst separating mechanism includes pipeline and filtration membrane, the pipe installation is on the photocatalytic oxidation ware, filtration membrane installs the inside at the pipeline, fixed mounting has two pressure storage room one on the interior roof of pipeline, two pressure storage room one are located filtration membrane's both sides respectively, the top fixed mounting of pipeline has the detection seat, there is pressure storage room two on the top of pressure storage room one through pipe connection, all be provided with flexible section on pressure storage room one and the pressure storage room two, pressure storage room two is installed in the inside of detecting the seat, but two one ends that pressure storage room two phases are close to all are provided with horizontal slip's fly leaf, install reset spring between the lateral wall of fly leaf and pressure storage room two, through even board fixed connection between two fly leaves, install alarm unit on the detection seat, the inside fixed mounting who detects the seat has the button of control alarm unit, the position of button is corresponding with even board. When the device works, water in the catalyst separation mechanism flows along the pipeline, catalyst particles in the water are intercepted by the filtering membrane, and the pressure on the two sides of the filtering membrane is monitored by the two pressure storage chambers; the first pressure storage chamber and the second pressure storage chamber form a communicated integral structure, the bottom end of the integral structure can be pressed to deform by arranging a return spring and a movable plate, and the movable plate on the second pressure storage chamber is driven to move after the first pressure storage chamber is pressed; when the device normally works, transmembrane pressure difference of the filtering membrane is in a normal range, at the moment, the two movable plates keep stable in position, the connecting plate is staggered with the button, the alarm unit does not work, and the alarm unit can select an acoustic alarm or a light alarm; when the filtration membrane leads to transmembrane pressure difference to exceed the set value because of reasons such as jam, the pressure difference grow of filtration membrane both sides, and then drive fly leaf and company's board and take place the displacement for even board and button contact, alarm unit send out warning information, remind the staff to maintain filtration membrane, realized automatic function, simple structure, convenient to use that carries out real-time supervision to filtration membrane.
Preferably, the first pressure storage chamber and the second pressure storage chamber both comprise a fixed seat and a flexible section, and the fixed seat in the second pressure storage chamber is connected with the movable plate through the flexible section. When the pressure-measuring device works, the pressure at two sides of the filtering membrane in the pipeline is detected through the flexible section in the first pressure storage chamber, and when the pressure at one side of the filtering membrane is increased, the flexible section at the side is extruded and drives the movable plate above the flexible section to move; when the pressure on the two sides of the filtering membrane is recovered to be normal, the movable plate moves back and returns to be reset under the action of the reset spring, and the flexible section is driven to recover to the original shape and can be recycled.
Preferably, the top fixed mounting of pipeline has the medicament case, and the membrane cleaning medicament has been stored to the inside of medicament case, and the bottom of medicament case is provided with inside feed liquor pipe, is provided with the ooff valve on the feed liquor pipe. When the device works, when the transmembrane pressure difference of the filtering membrane exceeds a set value, the liquid inlet pipe can be inserted into the pipeline, when the filtering membrane needs to be cleaned, the switch valve on the chemical box is opened by a manual operation or program control method, so that the membrane cleaning chemical in the chemical box flows into the pipeline, then water flow is introduced into the pipeline, and the filtering membrane is cleaned after the flowing water flow is mixed with the membrane cleaning chemical; the liquid inlet pipe can also be connected with the water tank, and after the membrane cleaning agent is mixed with water, the membrane is cleaned in the inlet pipe.
Preferably, the ring side fixed mounting of ooff valve has the driven plate, and the top fixed mounting of pipeline has the support, and the inside activity of support is pegged graft and is had gliding riser from top to bottom, installs the driving lever that is used for stirring the driven plate on the riser, and the driven plate includes two flanges, and the driving lever is located between two flanges, and the driving lever includes two one-way commentaries on classics boards, and the direction of rotation of two one-way commentaries on classics boards is opposite, and fixed mounting has the magnetic path on the riser, and fixed mounting has the electro-magnet on the support, and the electro-magnet is located the below of magnetic path. When the electromagnetic valve works, the electromagnet is started to be electrified, the electromagnet has magnetism after being electrified and repulses like poles of the magnetic block, so that the magnetic block and the vertical plate are pushed to move upwards, after the vertical plate moves upwards, the left driven plate is shifted through the upper shifting rod, the switch valve is rotated to be opened, membrane cleaning agents in the agent box flow out, at the moment, the lower driven plate rotates to the left side, and the driven plate is located below the lower shifting rod; after the electromagnet is powered off, the vertical plate slides downwards under the action of the gravity of the vertical plate and the attraction between the magnetic block and the electromagnet, and the lower driven plate is pulled through the lower deflector rod, so that the switch valve is turned off; by controlling the electrifying time of the electromagnet, the outflow quantity of the membrane cleaning agent in the agent box can be adjusted to adapt to the condition that the agent quantity required by cleaning the filtering membrane is different when the transmembrane pressure difference is different.
Preferably, the connecting plate is fixedly provided with an adjusting plate inserted into the liquid inlet pipe. When the device works, under the condition that the opening time of the switch valve is fixed, the liquid outlet apertures of the liquid inlet pipe are different, the amount of the flowing membrane cleaning agent is also different, the adjusting plate is arranged to be inserted into the liquid inlet pipe, and the liquid outlet apertures of the liquid inlet pipe can be adjusted by adjusting the position of the adjusting plate, so that the function of adjusting the amount of the agent after the switch valve is opened for one time is realized; after the transmembrane pressure difference of the filtering membrane exceeds a set value, the connecting plate and the adjusting plate move, the moving distance of the adjusting plate corresponds to the transmembrane pressure difference, the specific change condition along with the transmembrane pressure difference is realized, the function of automatically adjusting the amount of the flowing membrane cleaning agent is realized, manual operation is not needed, the structure is simple, the use is convenient, when the filtering membrane is cleaned in the traditional method is improved, an electric control system is additionally arranged, the transmembrane pressure difference is detected, the amount of the flowing membrane cleaning agent is adjusted, the installing equipment and the setting program are more, the structure is complex, the use cost is high, and the use cost is reduced.
Preferably, a fastening plate is movably inserted into the support, the top end of the fastening plate is provided with a latch used for clamping the adjusting plate, and the top end of the adjusting plate is provided with a tooth section corresponding to the latch. When the filtering membrane filtering device works, in an initial state, the latch and the adjusting plate are staggered up and down, so that the adjusting plate can normally move in the process of monitoring transmembrane pressure difference of the filtering membrane; when carrying out filtration membrane and wasing, the mounting plate moves down for the latch blocks the regulating plate, has improved the stability of regulating plate, has improved the in-process that washs the medicament outflow at the membrane, and the regulating plate probably takes place to rock, and leads to the too big problem of membrane washing medicament volume deviation of outflow, uses safe and reliable more.
The invention has the following beneficial effects:
1. according to the photocatalytic oxidation treatment process for the water for washing the vehicle, two groups of pressure storage chambers are arranged to monitor the transmembrane pressure difference of the filtering membrane in real time, and after the transmembrane pressure difference exceeds a set value, the pressure drives the movable plate and the connecting plate to displace, so that the connecting plate is in contact with the button, the alarm unit sends out warning information to remind a worker to maintain the filtering membrane, the function of automatically monitoring the filtering membrane in real time is realized, the structure is simple, and the use is convenient.
2. According to the photocatalytic oxidation treatment process for the water for washing the vehicle, the adjusting plate is arranged to be inserted into the liquid inlet pipe, the liquid outlet caliber of the liquid inlet pipe is adjusted, the moving distance of the adjusting plate corresponds to the transmembrane pressure difference, the function of automatically adjusting the amount of the membrane cleaning agent flowing out along with the specific change condition of the transmembrane pressure difference is realized, manual operation is not needed, the structure is simple, the use is convenient, and the use cost is reduced.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a front cross-sectional view of the present invention;
FIG. 2 is a perspective view of a first pressure storage chamber and a second pressure storage chamber of the present invention;
FIG. 3 is a sectional view of a connection structure of a first pressure storage chamber and a second pressure storage chamber according to the present invention;
FIG. 4 is a sectional view showing a connection structure of an adjustment plate and a switching valve according to the present invention;
fig. 5 is a schematic view of the connection structure of the fastening plate and the vertical plate of the invention.
In the figure: 1. a pipeline; 2. a filtration membrane; 3. a first pressure storage chamber; 301. a fixed seat; 302. a flexible section; 4. a detection seat; 5. a second pressure storage chamber; 6. a conduit; 7. a movable plate; 8. a return spring; 9. connecting plates; 10. a button; 11. a kit; 12. a liquid inlet pipe; 13. an on-off valve; 14. a driven plate; 15. a support; 16. a vertical plate; 17. a deflector rod; 18. a magnetic block; 19. an electromagnet; 20. an adjusting plate; 21. a fastening plate; 22. clamping teeth; 23. a positioning assembly; 24. u-shaped plate.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
The invention relates to a photocatalytic oxidation treatment process for water for washing vehicles, which comprises the following steps:
s1, collecting the car washing wastewater, primarily filtering the car washing wastewater, and filtering sand and suspended matters in the wastewater;
s2, feeding the filtered wastewater into a regulating reservoir to regulate the water quality and the pH value of the wastewater;
s3, delivering the effluent of the regulating reservoir into a hydrolysis acidification pool, carrying out hydrolysis acidification treatment on the wastewater, and regulating the biodegradability of the wastewater;
s4, sending the effluent of the hydrolysis acidification tank into a biochemical reaction tank, wherein the biochemical reaction tank is provided with an anaerobic zone, an anoxic zone and an aerobic zone, and removing COD, ammonia nitrogen, total nitrogen and total phosphorus in the wastewater;
s5, feeding the wastewater treated by the biochemical reaction tank into a sedimentation tank, filtering and separating to obtain sludge sediment and supernatant, discharging the sludge through a sludge discharge port at the bottom of the sedimentation tank, and feeding the supernatant into a sand filter device for filtering;
s6, sending the effluent of the sand filtration device into a photocatalytic oxidizer for oxidation treatment, removing COD in the wastewater, and recovering the catalyst in the photocatalytic oxidizer;
and S7, sending the effluent of the photocatalytic oxidizer into a clean water tank for storage and use.
The photocatalytic oxidation device is provided with a photocatalytic oxidation mechanism and a catalyst separation mechanism, the catalyst separation mechanism is provided with a filtering membrane 2, and the catalyst separation mechanism is used for intercepting and recovering catalyst particles. When the device works, wastewater enters the photocatalytic oxidation mechanism for oxidation treatment, then the water after oxidation treatment is sent into the catalyst separation mechanism, catalyst particles are intercepted through the filtering membrane 2, and the intercepted catalyst is sent back to the photocatalytic oxidation mechanism through the reflux pump.
The catalyst separation mechanism is provided with a membrane detection assembly and a membrane cleaning assembly, the membrane detection assembly is used for detecting transmembrane pressure difference of the filtering membrane 2, and the membrane cleaning assembly is used for cleaning the filtering membrane 2. When the device works, when the transmembrane pressure difference of the filtering membrane 2 exceeds a set value, a membrane cleaning agent is injected into the catalyst separation mechanism through the membrane cleaning assembly, and the membrane cleaning agent can be one of citric acid, oxalic acid and sodium hypochlorite.
Example one
As shown in fig. 1 to 3, the catalyst separation mechanism includes a pipeline 1 and a filter membrane 2, the pipeline 1 is installed on the photocatalytic oxidizer, the filter membrane 2 is installed inside the pipeline 1, two pressure storage chambers one 3 are fixedly installed on an inner top wall of the pipeline 1, the two pressure storage chambers one 3 are respectively located at two sides of the filter membrane 2, a detection seat 4 is fixedly installed above the pipeline 1, a top end of the pressure storage chamber one 3 is connected with a pressure storage chamber two 5 through a conduit 6, the pressure storage chambers one 3 and the pressure storage chamber two 5 are both provided with a flexible section 302, the pressure storage chamber two 5 is installed inside the detection seat 4, one ends of the two pressure storage chambers two 5 close to each other are both provided with a movable plate 7 capable of horizontally sliding, a return spring 8 is installed between the side walls of the movable plate 7 and the pressure storage chamber two 5, the two movable plates 7 are fixedly connected through a connecting plate 9, an alarm unit is installed on the detection seat 4, a button 10 for controlling the alarm unit is fixedly installed inside the detection seat 4, the position of the button 10 corresponds to the web 9. When the device works, water in the catalyst separation mechanism flows along the pipeline 1, catalyst particles in the water are intercepted by the filtering membrane 2, and the pressure on two sides of the filtering membrane 2 is monitored by the two pressure storage chambers I3; the pressure storage chamber I3 and the pressure storage chamber II 5 form a communicated integral structure, the bottom end of the integral structure can be pressed to deform by arranging the reset spring 8 and the movable plate 7, and the movable plate 7 on the pressure storage chamber II 5 is driven to move after the pressure storage chamber I3 is pressed; when the membrane filtration alarm works normally, transmembrane pressure difference of the filter membrane 2 is in a normal range, at the moment, the two movable plates 7 keep stable in position, the connecting plate 9 and the button 10 are staggered, the alarm unit does not work, and the alarm unit can select an acoustic alarm or a light alarm; after filtration membrane 2 leads to transmembrane pressure difference to exceed the setting value because of reasons such as blockking up, the pressure difference grow of filtration membrane 2 both sides, and then drive fly leaf 7 and even board 9 and take place the displacement for even board 9 and button 10 contact, alarm unit send out warning information, remind the staff to carry out maintenance processing to filtration membrane 2, realized automatic function, simple structure, convenient to use that carry out real-time supervision to filtration membrane 2.
As shown in fig. 1 to fig. 3, each of the pressure storage chambers one 3 and two 5 includes a fixed seat 301 and a flexible segment 302, and the fixed seat 301 and the movable plate 7 in the pressure storage chamber two 5 are connected through the flexible segment 302. When the device works, the pressure at two sides of the filtering membrane 2 in the pipeline 1 is detected through the flexible section 302 in the pressure storage chamber I3, and when the pressure at one side of the filtering membrane 2 is increased, the flexible section 302 at the side is extruded and drives the movable plate 7 above the flexible section to move; when the pressure on the two sides of the filtering membrane 2 returns to normal, the movable plate 7 moves back and returns under the action of the return spring 8, and drives the flexible section 302 to return to the original shape, so that the flexible section can be recycled.
As shown in fig. 1 to 4, a chemical tank 11 is fixedly installed above the pipeline 1, a membrane cleaning chemical is stored in the chemical tank 11, an internal liquid inlet pipe 12 is arranged at the bottom end of the chemical tank 11, and a switch valve 13 is arranged on the liquid inlet pipe 12. When the device works, when the transmembrane pressure difference of the filtering membrane 2 exceeds a set value, the liquid inlet pipe 12 can be inserted into the pipeline 1, when the filtering membrane 2 needs to be cleaned, the switch valve 13 on the chemical box 11 is opened by manual operation or program control, so that the membrane cleaning chemical in the chemical box 11 flows into the pipeline 1, then water flow is introduced into the pipeline 1, and the flowing water flow is mixed with the membrane cleaning chemical to clean the filtering membrane 2; the liquid inlet pipe 12 can also be connected with a water tank, and after the membrane cleaning agent is mixed with water, the membrane cleaning agent is introduced into the pipeline 1 to clean the filtering membrane 2.
As shown in fig. 4, a driven plate 14 is fixedly mounted on the ring side of the switch valve 13, a support 15 is fixedly mounted on the top of the pipeline 1, a vertical plate 16 capable of sliding up and down is movably inserted into the support 15, a shifting lever 17 for shifting the driven plate 14 is mounted on the vertical plate 16, the driven plate 14 includes two convex plates, the shifting lever 17 is located between the two convex plates, the shifting lever 17 includes two unidirectional rotating plates, the rotating directions of the two unidirectional rotating plates are opposite, a magnetic block 18 is fixedly mounted on the vertical plate 16, an electromagnet 19 is fixedly mounted on the support 15, and the electromagnet 19 is located below the magnetic block 18. When the device works, the electromagnet 19 is started to be electrified, the electromagnet 19 is magnetic after being electrified and repulsed by like poles of the magnet 18, so that the magnet 18 and the vertical plate 16 are pushed to move upwards, the vertical plate 16 moves upwards, the left driven plate 14 is driven by the upper driving rod 17, the switch valve 13 is rotated and opened, the membrane cleaning agent in the agent box 11 flows out, at the moment, the lower driven plate 14 rotates to the left side, and the driven plate 14 is positioned below the lower driving rod 17; after the electromagnet 19 is powered off, the vertical plate 16 slides downwards under the action of the gravity of the vertical plate and the attraction between the magnetic block 18 and the electromagnet 19, and the lower driven plate 14 is shifted through the lower shifting rod 17, so that the switch valve 13 is turned and closed; by controlling the energization time of the electromagnet 19, the amount of the agent flowing out for membrane cleaning in the chemical tank 11 can be adjusted to suit the case where the amount of the agent required for cleaning the filtration membrane 2 is different when the transmembrane pressure difference is different.
As shown in fig. 1 to 4, an adjusting plate 20 inserted into the liquid inlet pipe 12 is fixedly installed on the connecting plate 9. When the device works, under the condition that the opening time of the switch valve 13 is fixed, the liquid outlet calibers of the liquid inlet pipe 12 are different, and the amount of the flowing membrane cleaning agent is also different, the adjusting plate 20 is arranged to be inserted into the liquid inlet pipe 12, the position of the adjusting plate 20 is adjusted, the liquid outlet calibers of the liquid inlet pipe 12 can be adjusted, and the function of adjusting the agent amount after the switch valve 13 is opened once is further realized; after the transmembrane pressure difference of the filtering membrane 2 exceeds a set value, the connecting plate 9 and the adjusting plate 20 move, the moving distance of the adjusting plate 20 corresponds to the transmembrane pressure difference, the function of automatically adjusting the amount of the outflowing membrane cleaning agent along with the specific change condition of the transmembrane pressure difference is realized, manual operation is not needed, the structure is simple, the use is convenient, the problem that when the filtering membrane 2 is cleaned in the traditional method is solved, an electric control system needs to be additionally arranged, the transmembrane pressure difference is detected, the amount of the outflowing agent is adjusted, the installation equipment and the setting procedure are more, the structure is complex, the use cost is high is solved, and the use cost is reduced.
As shown in fig. 4 to 5, a fastening plate 21 is movably inserted into the support 15, a latch 22 for latching the adjusting plate 20 is disposed at a top end of the fastening plate 21, and a tooth section corresponding to the latch 22 is disposed at a top end of the adjusting plate 20. When the filtering membrane 2 works, in an initial state, the latch 22 and the adjusting plate 20 are staggered up and down, so that the adjusting plate 20 can normally move in the process of monitoring the transmembrane pressure difference of the filtering membrane 2; when carrying out filtration membrane 2 and wasing, the mounting plate 21 moves down for latch 22 catches regulating plate 20, has improved regulating plate 20's stability, has improved the in-process that washs the medicament outflow at the membrane, and regulating plate 20 probably takes place to rock, and leads to the too big problem of membrane washing medicament volume deviation that flows, uses safe and reliable more.
Example two
As shown in fig. 4 to 5, a first comparative example, in which another embodiment of the present invention is: have locating component 23 on the mounting plate 21 movable mounting, locating component 23 includes the telescopic link, and the both ends of telescopic link are rotated respectively and are installed on mounting plate 21 and support 15, and the telescopic link is the slope form, installs the pressure spring on the telescopic link, and the one end that mounting plate 21 was kept away from to the telescopic link is provided with the extension board that extends to the support 15 outside, and fixed mounting has the U template 24 that is used for stirring the extension board on riser 16. When the telescopic rod works, the telescopic rod can keep a stable inclined state under the thrust action of the pressure spring, so that the position stability of the fastening plate 21 and the latch 22 is improved; the in-process that riser 16 reciprocated dials locating component 23 through U template 24 and deflects, and then drives mounting plate 21 and latch 22 and reciprocates, has realized opening and the in-process of closing medicine tank 11, fastens and the function that loosens automatically adjusting plate 20, simple structure, convenient to use.
The working principle is as follows:
water in the catalyst separation mechanism flows along the pipeline 1, catalyst particles in the water are intercepted by the filtering membrane 2, and the pressure on two sides of the filtering membrane 2 is monitored through the two pressure storage chambers I3; the pressure storage chamber I3 and the pressure storage chamber II 5 form a communicated integral structure, the bottom end of the integral structure can be pressed to deform by arranging the reset spring 8 and the movable plate 7, and the movable plate 7 on the pressure storage chamber II 5 is driven to move after the pressure storage chamber I3 is pressed; when the device normally works, the transmembrane pressure difference of the filtering membrane 2 is in a normal range, at the moment, the two movable plates 7 keep stable in position, the connecting plate 9 and the button 10 are staggered, the alarm unit does not work, and the alarm unit can select an acoustic alarm or a light alarm; when filter membrane 2 leads to transmembrane pressure difference to exceed the setting value because of reasons such as jam, the pressure difference grow of filter membrane 2 both sides, and then drive fly leaf 7 and even board 9 and take place the displacement for even board 9 and button 10 contact, alarm unit send warning information, remind the staff to carry out maintenance treatment to filter membrane 2, realized automatic function, simple structure, convenient to use that carry out real-time supervision to filter membrane 2.
The pressure at two sides of the filtering membrane 2 in the pipeline 1 is detected through the flexible section 302 in the pressure storage chamber I3, and when the pressure at one side of the filtering membrane 2 is increased, the flexible section 302 at the side is extruded and drives the movable plate 7 above the flexible section to move; when the pressure on the two sides of the filtering membrane 2 returns to normal, the movable plate 7 moves back and returns under the action of the return spring 8, and drives the flexible section 302 to return to the original shape, so that the flexible section can be recycled.
When the transmembrane pressure difference of the filtering membrane 2 exceeds a set value, the liquid inlet pipe 12 can be inserted into the pipeline 1, when the filtering membrane 2 needs to be cleaned, the switch valve 13 on the chemical box 11 is opened by a manual operation or program control method, so that the membrane cleaning chemical in the chemical box 11 flows into the pipeline 1, then water flow is introduced into the pipeline 1, and the filtering membrane 2 is cleaned after the flowing water flow is mixed with the membrane cleaning chemical; the liquid inlet pipe 12 can also be connected with a water tank, and after the membrane cleaning agent is mixed with water, the membrane cleaning agent is introduced into the pipeline 1 to clean the filtering membrane 2.
The electromagnet 19 is started to be electrified, the electromagnet 19 is magnetic after being electrified and repulses with the magnetic block 18 in the same polarity, so that the magnetic block 18 and the vertical plate 16 are pushed to move upwards, after the vertical plate 16 moves upwards, the left driven plate 14 is driven through the upper driving rod 17, the switch valve 13 is rotated and opened, the membrane cleaning agent in the agent box 11 flows out, at the moment, the lower driven plate 14 rotates to the left side, and the driven plate 14 is located below the lower driving rod 17; after the electromagnet 19 is powered off, the vertical plate 16 slides downwards under the action of the gravity of the vertical plate and the attraction between the magnetic block 18 and the electromagnet 19, and the lower driven plate 14 is shifted through the lower shifting rod 17, so that the switch valve 13 is turned and closed; by controlling the energization time of the electromagnet 19, the amount of the agent flowing out for membrane cleaning in the chemical tank 11 can be adjusted to suit the case where the amount of the agent required for cleaning the filtration membrane 2 is different when the transmembrane pressure difference is different.
Under the condition that the opening time of the switch valve 13 is fixed and unchanged, the liquid outlet apertures of the liquid inlet pipe 12 are different, the amount of the flowing membrane cleaning agent is also different, the adjusting plate 20 is arranged to be inserted into the liquid inlet pipe 12, the liquid outlet aperture of the liquid inlet pipe 12 can be adjusted by adjusting the position of the adjusting plate 20, and the function of adjusting the amount of the agent after the switch valve 13 is opened for one time is further realized; after the transmembrane pressure difference of the filtering membrane 2 exceeds a set value, the connecting plate 9 and the adjusting plate 20 move, the moving distance of the adjusting plate 20 corresponds to the transmembrane pressure difference, the function of automatically adjusting the amount of the outflowing membrane cleaning agent along with the specific change condition of the transmembrane pressure difference is realized, manual operation is not needed, the structure is simple, the use is convenient, the problem that when the filtering membrane 2 is cleaned in the traditional method is solved, an electric control system needs to be additionally arranged, the transmembrane pressure difference is detected, the amount of the outflowing agent is adjusted, the installation equipment and the setting procedure are more, the structure is complex, the use cost is high is solved, and the use cost is reduced.
In the initial state, the latch 22 and the adjusting plate 20 are staggered up and down, so that the adjusting plate 20 can normally move in the process of monitoring the transmembrane pressure difference of the filtering membrane 2; when carrying out filtration membrane 2 and wasing, the mounting plate 21 moves down for latch 22 catches regulating plate 20, has improved regulating plate 20's stability, has improved the in-process that washs the medicament outflow at the membrane, and regulating plate 20 probably takes place to rock, and leads to the too big problem of membrane washing medicament volume deviation that flows, uses safe and reliable more.
The telescopic rod can keep a stable inclined state under the thrust action of the pressure spring, so that the position stability of the fastening plate 21 and the latch 22 is improved; the in-process that riser 16 reciprocated dials locating component 23 through U template 24 and deflects, and then drives mounting plate 21 and latch 22 and reciprocates, has realized opening and closing the in-process of medicament case 11, fastens and the function of loosening automatically to adjusting plate 20, simple structure, convenient to use.
The front, the back, the left, the right, the upper and the lower are all based on figure 1 in the attached drawings of the specification, according to the standard of the observation angle of a person, the side of the device facing an observer is defined as the front, the left side of the observer is defined as the left, and the like.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (2)
1. A photocatalytic oxidation treatment process for water for washing vehicles is characterized in that: the method comprises the following steps:
s1, collecting the car washing wastewater, primarily filtering the car washing wastewater, and filtering sand and suspended matters in the wastewater;
s2, feeding the filtered wastewater into a regulating reservoir to regulate the water quality and the pH value of the wastewater;
s3, delivering the effluent of the regulating reservoir into a hydrolysis acidification pool, carrying out hydrolysis acidification treatment on the wastewater, and regulating the biodegradability of the wastewater;
s4, sending the effluent of the hydrolysis acidification tank into a biochemical reaction tank, wherein the biochemical reaction tank is provided with an anaerobic zone, an anoxic zone and an aerobic zone, and removing COD, ammonia nitrogen, total nitrogen and total phosphorus in the wastewater;
s5, feeding the wastewater treated by the biochemical reaction tank into a sedimentation tank, filtering and separating to obtain sludge sediment and supernatant, discharging the sludge through a sludge discharge port at the bottom of the sedimentation tank, and feeding the supernatant into a sand filter device for filtering;
s6, sending the effluent of the sand filtration device into a photocatalytic oxidizer for oxidation treatment, removing COD in the wastewater, and recovering the catalyst in the photocatalytic oxidizer;
s7, delivering the effluent of the photocatalytic oxidizer to a clean water tank for storage and use;
the photocatalytic oxidation device is internally provided with a photocatalytic oxidation mechanism and a catalyst separation mechanism, the catalyst separation mechanism is internally provided with a filtering membrane (2), and the catalyst separation mechanism is used for intercepting and recovering catalyst particles;
the catalyst separation mechanism is internally provided with a membrane detection assembly and a membrane cleaning assembly, the membrane detection assembly is used for detecting transmembrane pressure difference of the filtering membrane (2), and the membrane cleaning assembly is used for cleaning the filtering membrane (2);
the catalyst separation mechanism comprises a pipeline (1) and a filtering membrane (2), the pipeline (1) is installed on a photocatalytic oxidation device, the filtering membrane (2) is installed inside the pipeline (1), two pressure storage chambers I (3) are fixedly installed on the inner top wall of the pipeline (1), the two pressure storage chambers I (3) are respectively located on two sides of the filtering membrane (2), a detection seat (4) is fixedly installed above the pipeline (1), the top end of the pressure storage chamber I (3) is connected with a pressure storage chamber II (5) through a guide pipe (6), flexible sections (302) are respectively arranged on the pressure storage chamber I (3) and the pressure storage chamber II (5), the pressure storage chamber II (5) is installed inside the detection seat (4), a movable plate (7) capable of horizontally sliding is arranged at one end, close to the two pressure storage chambers II (5), and a reset spring (8) is installed between the movable plate (7) and the side wall of the pressure storage chamber II (5), the two movable plates (7) are fixedly connected through a connecting plate (9), an alarm unit is installed on the detection seat (4), a button (10) for controlling the alarm unit is fixedly installed inside the detection seat (4), and the position of the button (10) corresponds to the connecting plate (9);
a chemical box (11) is fixedly arranged above the pipeline (1), a membrane cleaning chemical is stored in the chemical box (11), an internal liquid inlet pipe (12) is arranged at the bottom end of the chemical box (11), and a switch valve (13) is arranged on the liquid inlet pipe (12);
a driven plate (14) is fixedly installed on the ring side of the switch valve (13), a support (15) is fixedly installed at the top of the pipeline (1), a vertical plate (16) capable of sliding up and down is movably inserted into the support (15), a shifting lever (17) used for shifting the driven plate (14) is installed on the vertical plate (16), the driven plate (14) comprises two convex plates, the shifting lever (17) is located between the two convex plates, the shifting lever (17) comprises two one-way rotating plates, the rotating directions of the two one-way rotating plates are opposite, a magnetic block (18) is fixedly installed on the vertical plate (16), an electromagnet (19) is fixedly installed on the support (15), and the electromagnet (19) is located below the magnetic block (18);
an adjusting plate (20) inserted into the liquid inlet pipe (12) is fixedly arranged on the connecting plate (9);
a fastening plate (21) is movably inserted into the support (15), a latch (22) used for latching the adjusting plate (20) is arranged at the top end of the fastening plate (21), and a tooth section corresponding to the latch (22) is arranged at the top end of the adjusting plate (20);
have locating component (23) on mounting plate (21), locating component (23) include the telescopic link, and the both ends of telescopic link are rotated respectively and are installed on mounting plate (21) and support (15), and the telescopic link is the slope form, installs the pressure spring on the telescopic link, and the one end that mounting plate (21) were kept away from to the telescopic link is provided with the extension board that extends to support (15) outside, and fixed mounting has U template (24) that are used for stirring the extension board on riser (16).
2. The photocatalytic oxidation treatment process for water for vehicle washing according to claim 1, wherein: the pressure storage chamber I (3) and the pressure storage chamber II (5) both comprise a fixed seat (301) and a flexible section (302), and the fixed seat (301) in the pressure storage chamber II (5) is connected with the movable plate (7) through the flexible section (302).
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| CN202111670531.8A CN114291974B (en) | 2021-12-31 | 2021-12-31 | Photocatalytic oxidation treatment process for water for washing vehicle |
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| CN202111670531.8A CN114291974B (en) | 2021-12-31 | 2021-12-31 | Photocatalytic oxidation treatment process for water for washing vehicle |
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| CN114291974B true CN114291974B (en) | 2022-09-06 |
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| JP2007245131A (en) * | 2006-03-13 | 2007-09-27 | First Water Kk | Chemical aeration cleaning system for filter tank |
| CN201276165Y (en) * | 2008-07-09 | 2009-07-22 | 思维特优贸易(深圳)有限公司 | Bell apparatus of bicycle |
| KR101641083B1 (en) * | 2015-10-07 | 2016-07-20 | 우진건설주식회사 | High quality industrial reuse water supply system using UF/RO membrane for sewage/wastewater effluent water |
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| CN114291974A (en) | 2022-04-08 |
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