Sewage treatment sterilization device

Abstract

The invention provides a sewage treatment sterilization device which comprises a sewage liquid inlet pipe, a chlorination disinfection device and an ultraviolet disinfection assembly, the chlorination disinfection device and the ultraviolet disinfection assembly are connected with a sodium hypochlorite storage tank, a liquid outlet of the sewage liquid inlet pipe is fixedly connected with a liquid inlet of the chlorination disinfection device, and the ultraviolet disinfection assembly is installed at the liquid inlet end of the sewage liquid inlet pipe. The ultraviolet disinfection assembly comprises a plurality of ultraviolet lamps and a rotating device mounted on the sewage inlet pipe, and the ultraviolet lamps are mounted at the rotating end of the rotating device. After the scheme is adopted, the emergency situation that the ultraviolet lamp is damaged is handled in an emergency mode by rotating the ultraviolet lamp, and more time is provided for maintenance personnel. In addition, the ultraviolet lamp of the device is simple and quick to replace, the chlorination disinfection efficiency is high, the sodium hypochlorite feeding amount can be controlled according to actual conditions, accurate feeding and uniform distribution are ensured, and the disinfection effect is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of sewage treatment devices, and in particular relates to a sewage treatment sterilization device. Background Art

[0002] In the sewage treatment process, ultraviolet disinfection and chlorination disinfection usually belong to the post-treatment (or tertiary treatment). However, in actual treatment, it was found that after sewage treatment, there was a problem that the effluent index (fecal coliform bacteria) was easily exceeded. After analysis, the following reasons were found: the light of the ultraviolet disinfection lamp will weaken after a long period of work, and the dirt in the sewage may also adhere to the ultraviolet disinfection lamp, which will lead to poor ultraviolet disinfection effect; and for the sodium hypochlorite chemical disinfection process, this process will generally follow the ultraviolet disinfection, because some chlorides will have a certain absorption effect on ultraviolet rays, thereby affecting the effect of ultraviolet disinfection, and residual chlorine can provide a certain continuous disinfection effect, which helps prevent water from being contaminated again during transportation; however, sodium hypochlorite needs to be added in an appropriate amount. If it is excessive, the residual chlorine value will exceed the standard. If the amount added is insufficient, the disinfection effect is not good, and the fecal coliform bacteria will exceed the standard.

[0003] Existing sewage post-treatment sterilization often involves installing ultraviolet lamps in sewage pipes or on the outer wall of sewage pipes for sterilization. For example, the Chinese invention patent with patent number 2023114457810 discloses a sewage disinfection device, which fixes a serpentine coil between ultraviolet lamp panels, and then allows the filtered sewage to enter the serpentine coil. The serpentine coil is made of transparent glass material, so that it can be irradiated by ultraviolet lamp panels from two directions to achieve the purpose of sterilization. The sewage sterilized by ultraviolet light can be treated in the next step, such as disinfection with sodium hypochlorite.

[0004] Therefore, it can be found that in the existing sewage post-treatment process, the ultraviolet sterilization process is one of the keys to sewage sterilization. If the ultraviolet lamp fails, the amount of sodium hypochlorite actually needs to be increased in a timely manner; however, since the use of sodium hypochlorite needs to be strictly controlled, its excessive use can easily produce harmful and toxic substances. Therefore, the first priority is to eliminate the failure of the ultraviolet lamp as soon as possible. Summary of the invention

[0005] The present invention proposes a sewage treatment sterilization device, which can deal with emergency situations of ultraviolet lamp damage by rotating ultraviolet lamps, providing more time for maintenance personnel. In addition, the ultraviolet lamp replacement method of the device is simple and fast, the chlorination disinfection efficiency is high, and the amount of sodium hypochlorite can be controlled according to actual conditions to ensure accurate addition and uniform distribution, thereby improving the disinfection effect. At the same time, the rotating device can also remove dirt and biofilm on the surface of the lamp tube, reducing the frequency of cleaning and maintenance.

[0006] In order to solve the above technical problems, the technical solution of the present invention is:

[0007] A sewage treatment sterilization device comprises a sewage inlet pipe, a chlorination disinfection device connected to a sodium hypochlorite storage tank, and an ultraviolet disinfection component, wherein the liquid outlet of the sewage inlet pipe is fixedly connected to the liquid inlet of the chlorination disinfection device, the ultraviolet disinfection component is installed at the liquid inlet end of the sewage inlet pipe, the ultraviolet disinfection component comprises an ultraviolet lamp and a rotating device installed on the sewage inlet pipe, and the ultraviolet lamp is provided in plurality and installed at the rotating end of the rotating device.

[0008] With this design, when the UV lamp is damaged and the maintenance personnel come to repair it, the rotating device will drive all UV lamps to rotate. The rotating lamp tubes can make the UV irradiation more uniform and reduce the blind spots. Even if a lamp tube is damaged, other lamp tubes can cover the area originally covered by the damaged lamp tube during the rotation process, which also provides more time for maintenance personnel. In addition, in daily operation, the dirt and biofilm accumulated on the surface of the lamp tube can be removed with the help of water flow and the movement of the lamp tube, thereby reducing the frequency of cleaning and maintenance needs and ensuring the intensity of UV irradiation to the greatest extent.

[0009] Preferably, the rotating device comprises a rotating driver, a guide rod, a first rotating part fixedly connected to the working end of the rotating driver, and a second rotating part located below the first rotating part, the second rotating part is rotatably connected to the inner and outer walls of the sewage inlet pipe, the second rotating part is fixedly connected to the lower end of the guide rod, the first rotating part is slidably matched with the upper end of the guide rod, the ultraviolet lamp is slidably connected to the first rotating part and the second rotating part, and the lower end of the ultraviolet lamp extends to the lower inner wall near the sewage inlet pipe. In this way, the movement of the rotating device at the sewage inlet pipe can be more flexible, and the ultraviolet lamp can be better driven to move. When the rotating driver drives the first rotating part to rotate, the guide rod can drive the second rotating part to rotate together, so as to realize the rotation of the ultraviolet lamp together; when the first rotating part slides along the guide rod, the second rotating part is still connected to the inner and outer walls of the sewage inlet pipe. The ultraviolet lamp is slidably connected to the rotating device, which makes the replacement and maintenance of the lamp tube more convenient, reducing the maintenance cost and downtime. Among them, the rotating driver can be a common motor drive system on the market, so it is not repeated in the present invention.

[0010] Preferably, a lamp replacement assembly is also included, wherein the lamp replacement assembly includes a lifting device and a support portion, the rotary driver is mounted on the support portion, the support portion is mounted on the driving end of the lifting device, and the support portion is located above the sewage inlet pipe and outside the vertical movement path of the ultraviolet lamp. In this way, the rotary device can move up and down under the drive of the lifting device, which is convenient for maintenance and replacement of the ultraviolet lamp. Since the lower end of the ultraviolet lamp is close to the lower inner wall of the sewage inlet pipe, during maintenance, it is only necessary to operate the lifting device to lower the rotary driver, and the first rotating part will also be lowered, so that the lamp will move downward until the lower end of the lamp touches the inner wall of the sewage inlet pipe. Subsequently, the rotary device is further lowered, and the lamp will be gently pushed out of the rotary device by the inner wall of the sewage inlet pipe. This design allows maintenance personnel to easily remove the ultraviolet lamp, significantly simplifies the maintenance steps, reduces equipment downtime, improves processing efficiency, and is also very suitable for scenes where ultraviolet lamps need to be replaced over a large area. At the same time, this replacement method avoids direct contact between maintenance personnel and sewage, and enhances the safety of maintenance operations. It is worth mentioning that the first rotating part moves along the guide rod, so when the rotating driver moves up and down, the second rotating part will not move up and down accordingly, but will always be connected to the sewage inlet pipe, which effectively avoids sewage overflow in the sewage inlet pipe.

[0011] Among them, the lifting device can be a common cylinder or motor drive system on the market, so it will not be described in detail in the present invention.

[0012] Wherein, the lamp replacement assembly also includes a locking part, which is installed on the first rotating part, and the ultraviolet lamp and the first rotating part are both installed with a locking joint, and the locking part can cooperate with the locking joint. The locking part can ensure that the ultraviolet lamp tube is stably fixed on the rotating device when the ultraviolet lamp does not need to be replaced or maintained, and prevent it from loosening or falling off due to vibration or other external factors, thereby improving the safety of the entire system. Moreover, through the stable fixation of the locking part, the position of the ultraviolet lamp during normal operation is guaranteed to remain unchanged, which helps to maintain a uniform ultraviolet irradiation effect and reduce the uneven disinfection phenomenon caused by changes in the position of the lamp tube, thereby enhancing the reliability and disinfection efficiency of the system. It should be noted that when the ultraviolet lamp needs to be replaced, the locking part can be automatically unlocked by the control system so that the lamp tube can be smoothly ejected from the first rotating part and the second rotating part of the rotating device. Wherein, the locking part and the locking joint can adopt the common latch-type electric lock on the market, so it is not repeated in the present invention.

[0013] Preferably, it also includes a photoelectric sensor, which is provided in multiple numbers and installed on the second rotating part, and the multiple photoelectric sensors correspond one-to-one to the multiple ultraviolet lamps. The photoelectric sensor can detect the on and off state of the ultraviolet lamp. Once a lamp fails or goes out, it can immediately send a signal to facilitate timely replacement or maintenance. Multiple photoelectric sensors correspond one-to-one to ultraviolet lamps and can monitor the working state of each ultraviolet lamp in real time. When a fault in the ultraviolet lamp is detected, the fault signal sent by the photoelectric sensor can immediately trigger the emergency system, and the emergency system can allow the rotating device to drive all ultraviolet lamps to rotate to complete the emergency work, buy more time for maintenance personnel, and minimize the impact of ultraviolet lamp failure on the ultraviolet sterilization effect of sewage. It should be noted that the photoelectric sensor, residual chlorine sensor and other devices mentioned in the present invention will be connected to the general controller to achieve regulation and control of each device, pump and valve.

[0014] Preferably, it also includes a plurality of ejection devices, which are mounted on the first rotating part, and the ejection end of the ejection device is fixedly connected to the upper end of the ultraviolet lamp, and the plurality of ejection devices correspond one-to-one to the plurality of ultraviolet lamps, and the ejection device is electrically connected to the photoelectric sensor. The ejection device corresponds one-to-one to the ultraviolet lamp, and can accurately eject the faulty lamp tube when the photoelectric sensor detects that a specific lamp tube is damaged, thereby quickly locating the lamp tube that needs to be replaced, saving time in finding the source of the fault. Through the precise operation of the ejection device, maintenance personnel can directly replace the faulty lamp tube without checking all the lamp tubes one by one, which greatly improves the efficiency of maintenance work and shortens the downtime of the disinfection device, and is suitable for daily simple maintenance work scenarios.

[0015] Preferably, it also includes a lamp tube rebound device, and the lamp tube rebound device is provided in multiple numbers and is located directly below the ultraviolet lamp. The lamp tube rebound device includes a support installed on the lower inner wall of the sewage inlet pipe, a rebound part, a guide column and an elastic element. The rebound part is slidably fitted on the upper end of the support, and the guide column is installed at the lower end of the support. A guide groove is provided on the guide column, and the rebound part is slidably fitted with the guide groove. The elastic element is fixedly arranged between the lower end of the rebound part and the support. Specifically, under normal working conditions, the ultraviolet lamp and the lamp tube rebound device are not in contact, and the lamp tube rebound device is located below the ultraviolet lamp. A buffer material, such as a rubber pad, can be installed on the top of the rebound part to prevent the lamp tube from breaking or surface scratches when in contact with the lamp tube, thereby reducing damage to the lamp tube caused by daily maintenance. In this way, when the lamp is replaced, the ultraviolet lamp descends and the lower end of the lamp tube contacts the rebound part; because the lamp tube and a part of the rotating device will work in a sewage environment, their connection may absorb dirt and biofilm that are not completely treated in the sewage, so that the lamp tube is stuck in the rotating device. Therefore, when the lamp tube presses down the rebound part, the elastic member will be compressed and gradually give the lamp tube an upward thrust, so that the lamp tube gradually overcomes friction and obstacles, and then completes the action of detaching from the rotating part, reducing the impact of sudden impact on the lamp tube. Among them, the design of the guide groove ensures that the lamp tube can move in the correct direction during the pushing process, avoiding skew or deviation. The locking part can be unlocked when the lamp tube is pressed down at the beginning. If the lamp tube is not stuck, the rebound part does not need to be compressed to push the lamp tube out; but it can also be unlocked after the lamp tube is pressed down for a certain distance. In this way, when the lamp tube does encounter greater friction or obstacles, the elastic element can accumulate more elastic potential energy, thereby providing a stronger thrust to help the lamp tube overcome these obstacles.

[0016] Preferably, the guide column is rotatably connected to the support, an elastic pin is fixedly provided on the rebound part, the elastic pin is slidably matched with the guide groove, the guide groove includes an inclined part and a vertical part, the upper end of the inclined part is connected with the upper end of the vertical part and is deeper than the upper end of the vertical part, the lower end of the vertical part is connected with the lower end of the inclined part and is deeper than the lower end of the inclined part, the upper end of the inclined part is provided with a groove, and the elastic pin can be engaged with the groove. This structure further optimizes the lamp tube rebound device, and its working principle is as follows: the elastic pin fixed on the rebound part will move along the guide groove. When the rebound part is pressed down by the lamp tube, the elastic pin will move in the inclined part to realize the downward pressure of the rebound part, and at the same time, the elastic part will store elastic potential energy, and the guide column will rotate accordingly so that the elastic pin can move downward smoothly; when the elastic pin moves to the vertical part, the locking part is unlocked, and the elastic part will release the elastic potential energy to allow the rebound part to move upward, thereby realizing the action of pushing the lamp tube out of the rotating device. After replacing the lamp, the new lamp is locked with the locking part, and then the lifting device presses the lamp down to make it contact the rebound part, and presses the elastic pin of the rebound part into the groove, and then lifts the lamp to separate the lamp from the rebound part. The design of the groove can prevent the rebound part from rebounding unexpectedly, which increases the safety of the system; only when the lamp really needs to be replaced and sufficient pressure is applied, the elastic pin will fall out of the groove, causing the rebound part to start to compress and rebound. Of course, the locking part can also be unlocked when the old lamp starts to be pressed down, so that the unstuck lamp can be directly pushed out of the rotating device by the rebound part.

[0017] It should be noted that the upper end of the inclined portion is connected to the upper end of the vertical portion and is deeper than the upper end of the vertical portion, and the lower end of the vertical portion is connected to the lower end of the inclined portion and is deeper than the lower end of the inclined portion, so that the elastic pin can only move in a predetermined direction and cannot move in the opposite direction, thereby ensuring the stability of the operation of the lamp tube rebound device.

[0018] Preferably, the chlorination disinfection device comprises a spraying device, a reaction tank and a residual chlorine sensor, the liquid inlet of the reaction tank is fixedly connected to the liquid outlet of the sewage inlet pipe, the spraying device is installed in the reaction tank and one end is connected to the sodium hypochlorite storage tank, a channel for sodium hypochlorite to flow is provided in the water spraying device, the spraying device is installed with a plurality of nozzles at intervals from top to bottom, a first one-way valve is installed in the nozzle, the residual chlorine sensor is fixedly installed in the reaction tank and electrically connected to the spraying device, a second one-way valve, a pressure regulating valve and a metering pump are sequentially installed between the spraying device and the sodium hypochlorite storage tank, and the residual chlorine sensor is electrically connected to the metering pump and the pressure regulating valve. In this way, the residual chlorine sensor can monitor the residual chlorine concentration in the reaction tank in real time, and can make the control system automatically adjust the spraying amount of sodium hypochlorite according to the monitoring result of the residual chlorine concentration in the sewage to maintain the best disinfection effect. It is worth mentioning that the nozzles installed at intervals from top to bottom can effectively adjust the spraying amount of sodium hypochlorite. When a small amount of sodium hypochlorite is needed, the sodium hypochlorite solution supplied from the sodium hypochlorite storage tank to the spraying device can only reach the lower nozzle, so that only the lower nozzle will spray sodium hypochlorite; when more sodium hypochlorite is needed, the sodium hypochlorite solution provided by the sodium hypochlorite storage tank can reach the upper nozzle, so that sodium hypochlorite can be sprayed from the upper and lower nozzles at the same time. Among them, the first one-way valve can prevent sewage and sodium hypochlorite from flowing back into the spraying device, ensuring the stability of system operation.

[0019] The metering pump can accurately control the amount of sodium hypochlorite added to ensure that the dosage is accurate each time. Through real-time monitoring of the residual chlorine sensor, the system can automatically adjust the working parameters of the metering pump according to actual needs to achieve accurate dosage. The pressure regulating valve can stabilize the pressure of the sodium hypochlorite solution and ensure that the spraying device can obtain stable flow and pressure under different working conditions, which helps to improve the uniformity and stability of the spraying. Through the synergistic effect of the metering pump and the pressure regulating valve, the height of the sodium hypochlorite solution supplied from the sodium hypochlorite storage tank to the spraying device can be regulated, thereby controlling the sodium hypochlorite to be sprayed from nozzles at different positions, thereby improving the disinfection accuracy of the chlorination disinfection device. The second one-way valve can also be used to further prevent the backflow of the sodium hypochlorite solution.

[0020] In fact, since the photoelectric sensors, residual chlorine sensors and other devices are connected to the main controller, when the ultraviolet disinfection component fails, the system can adjust and increase the amount of sodium hypochlorite according to the situation to temporarily make up for the weakened ultraviolet sterilization effect. This emergency response mechanism buys maintenance personnel more time for repairs.

[0021] Preferably, it also includes a stirring part, the stirring part includes a rotary joint and a stirring blade, the rotating end of the rotary joint is fixedly connected to the liquid inlet end of the spraying device, and the stirring blade is fixedly mounted on the spraying device and is located in the reaction tank together with the spraying device. The rotary joint can be driven by a driving device. In this way, through the rotary joint, the spraying device can rotate during the spraying of sodium hypochlorite, so that the sodium hypochlorite is sprayed more evenly, and the presence of the stirring blade further promotes the full mixing of sodium hypochlorite and sewage, improves the disinfection effect, and reduces the waste of chemicals caused by uneven mixing.

[0022] In summary, such a sewage treatment sterilization device can deal with emergency situations of UV lamp damage by rotating the UV lamp, providing more time for maintenance personnel. In addition, the UV lamp replacement method of this device is simple and fast, the chlorination disinfection efficiency is high, and the amount of sodium hypochlorite can be controlled according to actual conditions to ensure accurate addition and uniform distribution, thereby improving the disinfection effect. At the same time, the rotating device can also remove dirt and biofilm on the surface of the lamp tube, reducing the frequency of cleaning and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0024] Figure 1 This is a schematic structural diagram of the sewage treatment sterilization device of the present invention (1);

[0025] Figure 2 This is a schematic structural diagram of the sewage treatment sterilization device of the present invention (2);

[0026] Figure 3 It is a schematic diagram of the connection structure between the ejection device and the rotating device in the sewage treatment sterilization device of the present invention;

[0027] Figure 4 It is a schematic diagram of the structure of the spraying device in the sewage treatment sterilization device of the present invention;

[0028] Figure 5 It is a structural schematic diagram of the lamp tube rebound device in the sewage treatment sterilization device of the present invention;

[0029] Figure 6 It is a schematic diagram of the planar structure of the guide groove in the sewage treatment sterilization device of the present invention.

[0030] In the figure,

[0031] 1- Sewage inlet pipe;

[0032] 2-chlorination disinfection device; 21-spraying device; 211-spray head; 212-first one-way valve; 22-reaction tank; 23-residual chlorine sensor; 24-stirring part; 241-rotating joint; 242-stirring blade; 25-second one-way valve; 26-pressure regulating valve; 27-metering pump;

[0033] 3-ultraviolet disinfection assembly; 31-ultraviolet lamp; 32-rotating device; 321-guide rod; 322-first rotating part; 323-second rotating part;

[0034] 4-lamp replacement assembly; 41-lifting device; 42-supporting part; 43-locking part;

[0035] 5- Photoelectric sensor;

[0036] 6- ejector device;

[0037] 7-lamp tube rebound device; 71-rebound part; 711-elastic pin; 72-guide column; 721-guide groove; 7211-inclined part; 7212-vertical part; 7213-groove; 73-elastic element;

[0038] 8- The third one-way valve. DETAILED DESCRIPTION

[0039] The specific embodiments of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0040] A sewage treatment sterilization device comprises a sewage inlet pipe 1, a chlorination disinfection device 2 connected to a sodium hypochlorite storage tank, and an ultraviolet disinfection component 3, wherein the liquid outlet of the sewage inlet pipe 1 is fixedly connected to the liquid inlet of the chlorination disinfection device 2, the ultraviolet disinfection component 3 is installed at the liquid inlet end of the sewage inlet pipe 1, the ultraviolet disinfection component 3 comprises an ultraviolet lamp 31 and a rotating device 32 installed on the sewage inlet pipe 1, and the ultraviolet lamp 31 is provided with a plurality of ultraviolet lamps and installed at the rotating end of the rotating device 32.

[0041] With this design, when the ultraviolet lamp 31 is damaged and the maintenance personnel come to repair it, the rotating device 32 will drive all ultraviolet lamps 31 to rotate. The rotating lamp tubes can make the ultraviolet radiation more uniform and reduce the blind spots. Therefore, even if a lamp tube is damaged, other lamp tubes can cover the area originally covered by the damaged lamp tube during the rotation process, which also provides more time for maintenance personnel. In addition, in daily operation, the dirt and biofilm accumulated on the surface of the lamp tube can be removed by the action of water flow and the movement of the lamp tube, thereby reducing the frequency of cleaning and maintenance needs and ensuring the intensity of ultraviolet radiation to the greatest extent.

[0042] In addition, the rotating device 32 includes a rotating driver, a guide rod 321, a first rotating part 322 fixedly connected to the working end of the rotating driver, and a second rotating part 323 located below the first rotating part 322, the second rotating part 323 is rotatably connected to both the inner and outer walls of the sewage inlet pipe 1, the second rotating part 323 is fixedly connected to the lower end of the guide rod 321, the first rotating part 322 is slidably matched with the upper end of the guide rod 321, the ultraviolet lamp 31 is slidably connected to the first rotating part 322 and the second rotating part 323, and the lower end of the ultraviolet lamp 31 extends to the lower inner wall near the sewage inlet pipe 1. In this way, the movement of the rotating device 32 at the sewage inlet pipe 1 can be made more flexible, and the movement of the ultraviolet lamp 31 can be better driven. When the rotary driver drives the first rotating part 322 to rotate, the guide rod 321 can drive the second rotating part 323 to rotate together, so that the ultraviolet lamp 31 can rotate together; when the first rotating part 322 slides along the guide rod 321, the second rotating part 323 is still connected to the inner and outer walls of the sewage inlet pipe 1; the second rotating part 323 can be designed to have one end resting on the outer wall of the sewage inlet pipe 1 and the other end rotatably connected to the inner and outer walls of the sewage inlet pipe 1. The ultraviolet lamp 31 is slidably connected to the rotating device 32, making the replacement and maintenance of the lamp tube more convenient, reducing maintenance costs and downtime.

[0043] It should be noted that the rotary driver can be a common motor drive system on the market, so it is not described in detail in the present invention. The sliding connection between the ultraviolet lamp 31 and the first rotating part 322 and the second rotating part 323 can adopt the existing common slide rail connection method, or the buckle groove 7213 matching method. Therefore, it is not described in detail in the present invention.

[0044] In addition, the lamp replacement assembly 4 is also included. The lamp replacement assembly 4 includes a lifting device 41 and a support part 42. The rotary driver is installed on the support part 42. The support part 42 is installed at the driving end of the lifting device 41. The support part 42 is located above the sewage inlet pipe 1 and outside the vertical movement path of the ultraviolet lamp 31. In this way, the rotary device 32 can be moved up and down under the drive of the lifting device 41, which is convenient for the maintenance and replacement of the ultraviolet lamp 31. Since the lower end of the ultraviolet lamp 31 is close to the lower inner wall of the sewage inlet pipe 1, during maintenance, it is only necessary to operate the lifting device 41 to lower the rotary driver, and the first rotating part 322 will also be lowered, so that the lamp tube will move downward until the lower end of the lamp tube touches the inner wall of the sewage inlet pipe 1. Subsequently, the rotary device 32 is further lowered, and the lamp tube will be gently pushed out of the rotary device 32 by the inner wall of the sewage inlet pipe 1. This design allows maintenance personnel to easily remove the ultraviolet lamp 31, significantly simplifies the maintenance steps, reduces equipment downtime, improves processing efficiency, and is also very suitable for scenes where a large area of ​​ultraviolet lamp 31 needs to be replaced. At the same time, this replacement method avoids direct contact between maintenance personnel and sewage, thus enhancing the safety of maintenance operations.

[0045] It is worth mentioning that the first rotating part 322 moves along the guide rod 321, so when the rotating driver moves up and down, the second rotating part 323 will not move up and down accordingly, but will always be in a state of being connected to the sewage inlet pipe 1, which effectively avoids the sewage in the sewage inlet pipe 1 from overflowing.

[0046] The lifting device 41 may be a common cylinder or motor drive system on the market, so it will not be described in detail in the present invention.

[0047] Among them, the lamp replacement assembly 4 also includes a locking portion 43, which is installed on the first rotating portion 322, and the ultraviolet lamp 31 and the first rotating portion 322 are both installed with a locking joint, and the locking portion 43 can cooperate with the locking joint. The locking portion 43 can ensure that the ultraviolet lamp 31 tube is stably fixed on the rotating device 32 when the ultraviolet lamp 31 does not need to be replaced or maintained, and prevent it from loosening or falling off due to vibration or other external factors, thereby improving the safety of the entire system. Moreover, through the stable fixation of the locking portion 43, the position of the ultraviolet lamp 31 during normal operation is guaranteed to remain unchanged, which helps to maintain a uniform ultraviolet irradiation effect and reduce the uneven disinfection phenomenon caused by the change of the lamp tube position, thereby enhancing the reliability and disinfection efficiency of the system. It should be noted that when the ultraviolet lamp 31 needs to be replaced, the locking portion 43 can be automatically unlocked by the control system so that the lamp tube can be smoothly ejected from the first rotating portion 322 and the second rotating portion 323 of the rotating device 32. Among them, the locking portion 43 and the locking joint can adopt the common bolt-type electric lock on the market, so it is not repeated in the present invention.

[0048] In addition, it also includes a photoelectric sensor 5, which is provided in plurality and mounted on the second rotating part 323, and the plurality of photoelectric sensors 5 correspond one-to-one to the plurality of ultraviolet lamps 31. The photoelectric sensor 5 can detect the on and off state of the ultraviolet lamp 31, and can immediately send a signal once a lamp fails or goes out, so as to facilitate timely replacement or repair. The plurality of photoelectric sensors 5 correspond one-to-one to the ultraviolet lamp 31, and can monitor the working state of each ultraviolet lamp 31 in real time. When a fault is detected in the ultraviolet lamp 31, the fault signal sent by the photoelectric sensor 5 can immediately trigger the emergency system, and the emergency system can allow the rotating device 32 to drive all ultraviolet lamps 31 to rotate to complete the emergency work, buy more time for the maintenance personnel, and minimize the impact of the failure of the ultraviolet lamp 31 on the ultraviolet sterilization effect of the sewage.

[0049] It should be noted that the photoelectric sensor 5, residual chlorine sensor 23 and other devices mentioned in the present invention are connected to the overall controller to achieve regulation and control of each device, pump and valve.

[0050] In addition, it also includes a plurality of ejection devices 6, which are mounted on the first rotating part 322, and the ejection end of the ejection device 6 is fixedly connected to the upper end of the ultraviolet lamp 31, and the plurality of ejection devices 6 correspond to the plurality of ultraviolet lamps 31 one by one, and the ejection device 6 is electrically connected to the photoelectric sensor 5. The ejection device 6 corresponds to the ultraviolet lamp 31 one by one, and can accurately eject the faulty lamp when the photoelectric sensor 5 detects that a specific lamp is damaged, thereby quickly locating the lamp that needs to be replaced, saving time in finding the source of the fault. Through the precise operation of the ejection device 6, maintenance personnel can directly replace the faulty lamp without checking all the lamps one by one, which greatly improves the efficiency of maintenance work and shortens the downtime of the disinfection device, and is suitable for daily simple maintenance work scenarios.

[0051] In addition, it also includes a lamp tube rebound device 7, which is provided with multiple lamp tube rebound devices 7 and is located directly below the ultraviolet lamp 31. The lamp tube rebound device 7 includes a support installed on the lower inner wall of the sewage inlet pipe 1, a rebound portion 71, a guide column 72 and an elastic element 73. The rebound portion 71 is slidably matched at the upper end of the support, and the guide column 72 is installed at the lower end of the support. A guide groove 721 is provided on the guide column 72. The rebound portion 71 is slidably matched with the guide groove 721, and the elastic element 73 is fixedly arranged between the lower end of the rebound portion 71 and the support. Specifically, the ultraviolet lamp 31 and the lamp tube rebound device 7 are not in contact under normal working conditions, and the lamp tube rebound device 7 is located below the ultraviolet lamp 31. The top of the rebound portion 71 can be equipped with a buffer material, such as a rubber pad, to prevent the lamp tube from being broken or scratched on the surface when in contact with the lamp tube, thereby reducing the damage to the lamp tube caused by daily maintenance. In this way, when the lamp is replaced, the ultraviolet lamp 31 descends, and the lower end of the lamp tube will contact the rebound part 71; because the lamp tube and a part of the rotating device 32 will work in a sewage environment, their connection may absorb dirt and biofilm that are not completely treated in the sewage, so that the lamp tube is stuck in the rotating device 32. Therefore, when the lamp tube presses down the rebound part 71, the elastic member will be compressed and gradually give the lamp tube an upward thrust, so that the lamp tube gradually overcomes friction and obstacles, and then completes the action of detaching from the rotating part, reducing the impact of sudden impact on the lamp tube. Among them, the design of the guide groove 721 ensures that the lamp tube can move in the correct direction during the pushing process, avoiding skew or deviation. The locking part 43 can be unlocked when the lamp tube is pressed down at the beginning. If the lamp tube is not stuck, the rebound part 71 does not need to be compressed to push the lamp tube out; but it can also wait until the lamp tube is pressed down for a distance before unlocking, so that when the lamp tube does encounter greater friction or obstacles, the elastic element 73 can accumulate more elastic potential energy, thereby providing a stronger thrust to help the lamp tube overcome these obstacles.

[0052] In addition, the guide column 72 is rotatably connected to the support, and an elastic pin 711 is fixedly provided on the rebound portion 71. The elastic pin 711 is slidably matched with the guide groove 721. The guide groove 721 includes an inclined portion 7211 and a vertical portion 7212. The upper end of the inclined portion 7211 is connected to the upper end of the vertical portion 7212 and is deeper than the upper end of the vertical portion 7212. The lower end of the vertical portion 7212 is connected to the lower end of the inclined portion 7211 and is deeper than the lower end of the inclined portion 7211. The upper end of the inclined portion 7211 is provided with a groove 7213, and the elastic pin 711 can be engaged with the groove 7213. This structure further optimizes the lamp tube rebound device 7, and its working principle is: the elastic pin 711 fixed on the rebound portion 71 will move along the guide groove 721. When the rebound part 71 is pressed down by the lamp tube, the elastic pin 711 will move in the inclined part 7211 to realize the downward pressure of the rebound part 71, and at the same time, the elastic member will store elastic potential energy. At this time, the guide column 72 will rotate accordingly so that the elastic pin 711 can move downward smoothly; when the elastic pin 711 moves to the vertical part 7212, the locking part 43 is unlocked, and the elastic member will release the elastic potential energy to allow the rebound part 71 to move upward, thereby realizing the action of pushing the lamp tube out of the rotating device 32. After the lamp tube is replaced, the new lamp tube is locked with the locking part 43, and then the lifting device 41 presses the lamp tube downward to make it contact the rebound part 71, and presses the elastic pin 711 of the rebound part 71 into the groove 7213, and then the lamp tube is lifted to separate the lamp tube from the rebound part 71. The design of the groove 7213 can prevent the rebound portion 71 from rebounding unexpectedly, thereby increasing the safety of the system; only when the lamp tube really needs to be replaced and sufficient pressure is applied, the elastic pin 711 will come out of the groove 7213, causing the rebound portion 71 to start the compression and rebound action. Of course, the locking portion 43 can also be unlocked when the old lamp tube starts to be pressed down, so that the unstuck lamp tube can be directly pushed out of the rotating device 32 by the rebound portion 71.

[0053] It should be noted that the upper end of the inclined portion 7211 is connected to the upper end of the vertical portion 7212 and is deeper than the upper end of the vertical portion 7212, and the lower end of the vertical portion 7212 is connected to the lower end of the inclined portion 7211 and is deeper than the lower end of the inclined portion 7211, so that the elastic pin 711 can only move in a predetermined direction and cannot move in the opposite direction, thereby ensuring the stability of the operation of the lamp tube rebound device 7.

[0054] In addition, the chlorination disinfection device 2 includes a spraying device 21, a reaction tank 22 and a residual chlorine sensor 23, the liquid inlet of the reaction tank 22 is fixedly connected to the liquid outlet of the sewage inlet pipe 1, the spraying device 21 is installed in the reaction tank 22 and one end is connected to the sodium hypochlorite storage tank, a channel for sodium hypochlorite to flow is provided in the water spraying device, a plurality of nozzles 211 are installed at intervals from top to bottom in the spraying device 21, a first one-way valve 212 is installed in the nozzle 211, the residual chlorine sensor 23 is fixedly installed in the reaction tank 22 and electrically connected to the spraying device 21, a second one-way valve 25, a pressure regulating valve 26 and a metering pump 27 are sequentially installed between the spraying device 21 and the sodium hypochlorite storage tank, and the residual chlorine sensor 23 is electrically connected to the metering pump 27 and the pressure regulating valve 26. In this way, the residual chlorine sensor 23 can monitor the residual chlorine concentration in the reaction tank 22 in real time, and can make the control system automatically adjust the spraying amount of sodium hypochlorite according to the monitoring result of the residual chlorine concentration in the sewage to maintain the best disinfection effect. It is worth mentioning that the nozzles 211 installed at intervals from top to bottom can effectively adjust the spraying amount of sodium hypochlorite. When a small amount of sodium hypochlorite is needed, the height of the sodium hypochlorite solution supplied from the sodium hypochlorite storage tank to the spraying device 21 can only reach the lower nozzle 211, so that only the lower nozzle 211 will spray sodium hypochlorite; when more sodium hypochlorite is needed, the height of the sodium hypochlorite solution provided by the sodium hypochlorite storage tank can reach the upper nozzle 211, so that sodium hypochlorite can be sprayed from the upper and lower nozzles 211 at the same time. Among them, the first one-way valve 212 can prevent sewage and sodium hypochlorite from flowing back into the spraying device 21, ensuring the stability of the system operation.

[0055] The metering pump 27 can accurately control the amount of sodium hypochlorite added to ensure that the dosage added each time is accurate. Through the real-time monitoring of the residual chlorine sensor 23, the system can automatically adjust the working parameters of the metering pump 27 according to actual needs to achieve accurate addition. The pressure regulating valve 26 can stabilize the pressure of the sodium hypochlorite solution to ensure that the spraying device 21 can obtain stable flow and pressure under different working conditions, which helps to improve the uniformity and stability of the spraying. Through the synergistic effect of the metering pump 27 and the pressure regulating valve 26, the height of the sodium hypochlorite solution supplied from the sodium hypochlorite storage tank to the spraying device 21 can be regulated, thereby controlling the sodium hypochlorite to be sprayed from the nozzles 211 at different positions, thereby improving the disinfection accuracy of the chlorination disinfection device 2. The second one-way valve 25 can also be used to further prevent the backflow of the sodium hypochlorite solution.

[0056] In fact, since the photoelectric sensor 5, the residual chlorine sensor 23 and other devices are connected to the main controller, when the ultraviolet disinfection component 3 fails, the system can adjust and increase the amount of sodium hypochlorite according to the situation to temporarily compensate for the weakened ultraviolet sterilization effect. This emergency response mechanism buys more time for maintenance personnel to carry out maintenance.

[0057] In addition, it also includes a stirring part 24, which includes a rotary joint 241 and a stirring blade 242. The rotating end of the rotary joint 241 is fixedly connected to the liquid inlet end of the spraying device 21, and the stirring blade 242 is fixedly installed on the spraying device 21 and is located in the reaction tank 22 together with the spraying device 21. Among them, the rotary joint 241 can be driven by a driving device. In this way, through the rotary joint 241, the spraying device 21 can rotate during the spraying of sodium hypochlorite, so that the sodium hypochlorite is sprayed more evenly, and the presence of the stirring blade 242 further promotes the full mixing of sodium hypochlorite and sewage, improves the disinfection effect, and reduces the waste of chemicals caused by uneven mixing.

[0058] In addition, a third one-way valve 8 can be provided, and the third one-way valve 8 is installed between the liquid outlet of the sewage inlet pipe 11 and the liquid inlet of the chlorination disinfection device 2. The third one-way valve 8 can effectively prevent the liquid in the chlorination disinfection device 2 from flowing back to the sewage inlet pipe 1, thereby ensuring the unidirectionality of the disinfection process, avoiding the mixing of treated water and untreated water, and ensuring the disinfection effect. A pumping system (such as a centrifugal pump) can also be installed before the third one-way valve 8 to assist in sending the water disinfected by ultraviolet light into the chlorination disinfection device 2, ensuring that the water flow is smoothly and efficiently transmitted.

[0059] In summary, such a sewage treatment sterilization device can deal with the emergency situation of the damage of the ultraviolet lamp 31 by rotating the ultraviolet lamp 31, providing more time for maintenance personnel. In addition, the ultraviolet lamp 31 of the device is easy and quick to replace, the chlorination disinfection efficiency is high, and the amount of sodium hypochlorite can be controlled according to the actual situation to ensure accurate addition and uniform distribution, thereby improving the disinfection effect. At the same time, the rotating device 32 can also remove dirt and biofilm on the surface of the lamp tube, reducing the frequency of cleaning and maintenance.

[0060] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. A sewage treatment sterilization device, comprising a sewage inlet pipe (1), a chlorination disinfection device (2) connected to a sodium hypochlorite storage tank, and an ultraviolet disinfection component (3), wherein the liquid outlet of the sewage inlet pipe (1) is fixedly connected to the liquid inlet of the chlorination disinfection device (2), and the ultraviolet disinfection component (3) is installed at the liquid inlet end of the sewage inlet pipe (1), characterized in that: The ultraviolet disinfection assembly (3) comprises an ultraviolet lamp (31) and a rotating device (32) installed on the sewage inlet pipe (1); the ultraviolet lamp (31) is provided with a plurality of rotating ends installed on the rotating device (32).

2. A sewage treatment sterilization device according to claim 1, characterized in that: The rotating device (32) comprises a rotating driver, a guide rod (321), a first rotating part (322) fixedly connected to the working end of the rotating driver, and a second rotating part (323) located below the first rotating part (322); the second rotating part (323) is rotatably connected to both the inner and outer walls of the sewage inlet pipe (1); the second rotating part (323) is fixedly connected to the lower end of the guide rod (321); the first rotating part (322) is slidably matched to the upper end of the guide rod (321); the ultraviolet lamp (31) is slidably connected to the first rotating part (322) and the second rotating part (323); and the lower end of the ultraviolet lamp (31) extends to a position close to the lower inner wall of the sewage inlet pipe (1).

3. A sewage treatment sterilization device according to claim 2, characterized in that: The invention also comprises a lamp replacement assembly (4), the lamp replacement assembly (4) comprising a lifting device (41) and a support portion (42), the rotary drive being mounted on the support portion (42), the support portion (42) being mounted on the driving end of the lifting device (41), the support portion (42) being located above the sewage inlet pipe (1) and outside the vertical movement path of the ultraviolet lamp (31).

4. A sewage treatment sterilization device according to claim 3, characterized in that: The lamp replacement assembly (4) further comprises a locking portion (43), wherein the locking portion (43) is mounted on the first rotating portion (322), and a locking engaging portion is mounted on both the ultraviolet lamp (31) and the first rotating portion (322), and the locking portion (43) can cooperate with the locking engaging portion.

5. A sewage treatment sterilization device according to claim 4, characterized in that: It also includes a photoelectric sensor (5), wherein a plurality of the photoelectric sensors (5) are provided and mounted on the second rotating part (323), and the plurality of the photoelectric sensors (5) correspond one-to-one to the plurality of the ultraviolet lamps (31).

6. A sewage treatment sterilization device according to claim 5, characterized in that: It also includes a plurality of ejection devices (6), the ejection devices (6) being mounted on the first rotating part (322), the ejection ends of the ejection devices (6) being fixedly connected to the upper ends of the ultraviolet lamps (31), the plurality of ejection devices (6) corresponding to the plurality of ultraviolet lamps (31) one by one, and the ejection devices (6) being electrically connected to the photoelectric sensor (5).

7. A sewage treatment sterilization device according to claim 5, characterized in that: The invention also comprises a lamp tube rebound device (7), wherein a plurality of the lamp tube rebound devices (7) are provided and are located directly below the ultraviolet lamp (31), wherein the lamp tube rebound device (7) comprises a support mounted on the lower inner wall of the sewage inlet pipe (1), a rebound portion (71), a guide column (72) and an elastic element (73), wherein the rebound portion (71) is slidably fitted on the upper end of the support, the guide column (72) is mounted on the lower end of the support, a guide groove (721) is provided on the guide column (72), the rebound portion (71) is slidably fitted with the guide groove (721), and the elastic element (73) is fixedly arranged between the lower end of the rebound portion (71) and the support.

8. A sewage treatment sterilization device according to claim 7, characterized in that: The guide column (72) is rotatably connected to the support, and an elastic pin (711) is fixedly provided on the rebound portion (71), and the elastic pin (711) is slidably matched with the guide groove (721), and the guide groove (721) includes an inclined portion (7211) and a vertical portion (7212), the upper end of the inclined portion (7211) is connected to the upper end of the vertical portion (7212) and is deeper than the upper end of the vertical portion (7212), the lower end of the vertical portion (7212) is connected to the lower end of the inclined portion (7211) and is deeper than the lower end of the inclined portion (7211), and the upper end of the inclined portion (7211) is provided with a groove (7213), and the elastic pin (711) can be snap-fitted with the groove (7213).

9. A sewage treatment sterilization device according to claim 1, characterized in that: The chlorination disinfection device (2) comprises a spraying device (21), a reaction tank (22) and a residual chlorine sensor (23); the liquid inlet of the reaction tank (22) is fixedly connected to the liquid outlet of the sewage inlet pipe (1); the spraying device (21) is installed in the reaction tank (22) and one end of the spraying device (21) is connected to the sodium hypochlorite storage tank; a channel for sodium hypochlorite to flow is provided in the spraying device (21); and a plurality of spray heads are installed at intervals from top to bottom. (211), a first one-way valve (212) is installed in the spray head (211), the residual chlorine sensor (23) is fixedly installed in the reaction tank (22) and is electrically connected to the spray device (21), a second one-way valve (25), a pressure regulating valve (26) and a metering pump (27) are installed in sequence between the spray device (21) and the sodium hypochlorite storage tank, and the residual chlorine sensor (23) is electrically connected to the metering pump (27) and the pressure regulating valve (26).

10. A sewage treatment sterilization device according to claim 9, characterized in that: The stirring portion (24) further comprises a stirring portion (24), wherein the stirring portion (24) comprises a rotary joint (241) and a stirring blade (242), wherein the rotating end of the rotary joint (241) is fixedly connected to the liquid inlet end of the spraying device (21), and the stirring blade (241) is fixedly mounted on the spraying device (21) and is located together with the spraying device (21) in the reaction tank (22).

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