CN210683457U

CN210683457U - Multi-medium purification anti-clogging sewage treatment device

Info

Publication number: CN210683457U
Application number: CN201921260288.0U
Authority: CN
Inventors: 张维志; 章燕; 周瑜
Original assignee: Yunnan Shuipei Technology Co Ltd
Current assignee: Yunnan Shuipei Technology Co Ltd
Priority date: 2019-08-06
Filing date: 2019-08-06
Publication date: 2020-06-05
Anticipated expiration: 2029-08-06

Abstract

The utility model discloses a multi-medium purified anti-clogging sewage treatment device, which belongs to the sewage treatment field, and comprises a shell, wherein the top of the shell is communicated with a water inlet pipe, the inside of the shell is fixedly provided with a crushing box, the top of the crushing box is communicated with the water inlet pipe, the bottom of the crushing box is communicated with a water guide pipe, the bottom of the water guide pipe is communicated with a degradation box, the top of the degradation box is fixedly provided with a motor, a stirring rod is driven by the motor to rotate so as to drive a stirring frame to rotate and stir sewage, the blockage caused by the deposition of impurities in the sewage in the degradation box is avoided, meanwhile, the scraping strip is driven by the rotation of the stirring frame to scrape the impurities adhered to the side wall of the degradation box, the device is prevented from being blocked, the nondegradable impurities can be discharged for treatment through a sludge discharge port, the degraded sewage enters a multi-medium filter box through, removing suspended or colloidal impurities from the water.

Description

Multi-medium purification anti-clogging sewage treatment device

Technical Field

The utility model relates to a sewage treatment field, more specifically say, relate to a multimedium purifies prevents blockking up nature sewage treatment plant.

Background

Sewage, generally refers to effluent water from life and production that is contaminated to some extent. The sewage mainly comprises domestic sewage, industrial wastewater and initial rainwater. The main pollutants of the sewage are pathogen pollutants, oxygen-consuming pollutants, plant nutrients, toxic pollutants, etc., and the sewage may be defined as waste-carrying liquid or water mixed with ground water, surface water, storm snow, etc. discharged from residential, institutional, commercial, or industrial areas from the viewpoint of the source of the sewage. Sewage is divided into a plurality of categories, and a plurality of technologies and processes are provided for correspondingly reducing the influence of the sewage on the environment, and among the water pollution caused by human production activities, the water pollution caused by the industry is the most serious. For example, industrial wastewater contains many pollutants, has complex components, is not only difficult to purify in water, but also difficult to treat, sewage treatment equipment can effectively treat domestic sewage, industrial wastewater and the like in urban areas, avoids sewage and pollutants from directly flowing into water areas, has important significance for improving ecological environment, promoting urban grade and promoting economic development, and has several technical difficulties for recycling sewage to overcome: the efficiency of blocking, corrosion and heat exchange is improved, and various sewage treatment devices are available in the market in order to overcome the difficult problem of blocking.

Current sewage treatment plant is when using, can't handle great impurity in the sewage, and the phenomenon of jam often can take place, influences sewage treatment efficiency, takes a large amount of manpowers of cost and material power to dredge after the jam takes place, causes economic aspect loss.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved

To the problem that exists among the prior art, the utility model aims to provide a multimedium purifies prevents blockking up nature sewage treatment plant possesses in advance to sewage shredding, reduces to block up and takes place, the effectual advantage of sewage treatment, solved current sewage treatment plant when using, can't handle great impurity in the sewage, the phenomenon of jam often can take place, influence sewage treatment efficiency, take place to block up and need spend a large amount of manpowers and material power to dredge, cause the problem of economic aspect loss.

2. Technical scheme

In order to solve the above problems, the utility model adopts the following technical proposal.

The utility model provides a multimedium purification prevents blockking up nature sewage treatment plant, includes the casing, the top intercommunication of casing has the inlet tube, the inside fixed mounting of casing has crushing case, the top of crushing case is linked together with the inlet tube, the bottom intercommunication of crushing case has the aqueduct, the bottom intercommunication of aqueduct has the degradation case, the top fixed mounting of degradation case has the motor, the output shaft of motor passes through shaft coupling fixedly connected with puddler, the bottom of puddler runs through the degradation case and extends to the inside of degradation case, the outside fixed mounting of puddler has the agitator, one side fixed mounting that the agitator was kept away from the puddler of agitator has the scraping strip mounting bracket, one side fixed mounting that the scraping strip mounting bracket was kept away from the agitator has the scraping strip, the scraping strip contacts with the inside wall of degradation case, the left side fixed mounting of casing has the oxygenation case, the right side of the oxygenation box is fixedly provided with an oxygenation pipe, the right end of the oxygenation pipe sequentially penetrates through the shell and the degradation box and extends to the interior of the degradation box, the bottom of the degradation box is communicated with a sludge discharge port, the right side bottom of the degradation box is communicated with a degradation box water outlet pipe, the right end of the degradation box water outlet pipe is communicated with a multi-medium filter box, the middle of the degradation box water outlet pipe is communicated with a pressure pump, the top end of the multi-medium filter box is communicated with a filter box water outlet pipe, the right end of the filter box water outlet pipe is communicated with a sterilization tank, the bottom end of the sterilization tank is communicated with a water outlet pipe, when the oxygenation box is used, sewage enters the pulverization box through a water inlet pipe, the pulverization box pulverizes impurities in the sewage into fine fragments, the impurities are prevented from blocking the device, then the sewage enters the degradation box through a water guide pipe, and, promote good oxygen bacterium to degrade sewage, the degradation in-process, starter motor, the motor drives the puddler and rotates and then drive the stirring frame and rotate and mix sewage, avoid the inside debris of sewage to cause the jam at the inside deposit of degradation case, the stirring frame drives the scraping strip when rotating simultaneously and strikes off the impurity of degradation case lateral wall adhesion, avoid the device to block up, the not degradable impurity accessible mud discharging port discharge treatment, it causes the jam to avoid the accumulation too much in the degradation case, sewage after the degradation filters in getting into the multi-media filter box through the force (forcing) pump, get rid of the suspension or the colloidal impurity of aquatic, sewage after the filtration disinfects in the disinfection jar that gets into through the filter box outlet pipe, the water purification after the disinfection passes through the drain pipe and discharges.

Preferably, the inside of the crushing box is rotatably connected with two crushing cylinders, a plurality of crushing blades are fixedly mounted on the outer portions of the two crushing cylinders, a rotating shaft is fixedly mounted in the crushing cylinder, a driving wheel is fixedly mounted at the left end of the rotating shaft, a crushing motor is fixedly mounted at the left side of the shell, a driving shaft is fixedly connected to an output shaft of the crushing motor, the right end of the driving shaft penetrates through the shell, extends to the inside of the crushing box and is rotatably connected with the crushing box through a bearing, a plurality of driving wheels are fixedly mounted on the outer portions of the driving shaft, a belt is sleeved on the driving wheel and the outer portions of the driving wheels, the driving wheel is in transmission connection with the driving wheels through the belt, the crushing motor is started when the crushing box is used, the driving shaft is driven to rotate by the, and then drive the crushing barrel and rotate, the crushing barrel rotates the in-process and smashes impurity through smashing the blade, has ensured the normal operating of device.

Preferably, two crushing blade intermeshing of crushing barrel outside for the impurity of big granule in the sewage can fall into and smash between the crushing blade, smashes into tiny fragment with impurity, avoids impurity to block up the device.

Preferably, the inside fixed mounting of stirring frame has a plurality of S types to stir the strip, stirs the effect that the strip increases stirring frame and stir sewage when rotating through the S type, avoids the inside debris of sewage to cause the jam in the inside deposit of degrading the case.

Preferably, an anthracite filter layer, a quartz sand filter layer and a magnetite filter layer are fixedly arranged in the multi-medium filter box from top to bottom in sequence, suspended or colloidal impurities in water are removed through filtering of various media, particularly, micro particles, bacteria and the like which cannot be removed by a precipitation technology can be effectively removed, and the sewage purification effect is improved.

Preferably, the inside fixed mounting of disinfection jar has the active carbon adsorption layer, the right side fixed mounting of disinfection jar has the disinfection water tank, the left side fixed mounting of disinfection water tank has the disinfection water pipe, the left end of disinfection water pipe runs through the disinfection jar of disinfecting and extends to the inside of disinfection jar of disinfecting, the inside wall that the disinfection jar of disinfecting is located the below fixed mounting of active carbon adsorption layer has a plurality of ultraviolet ray disinfection lamps, and sewage adsorbs aquatic residual impurity through the active carbon adsorption layer inside the disinfection jar of disinfecting, adds the disinfectant to the aquatic through the disinfection water pipe, kills the aquatic bacterium, disinfects, produces the ultraviolet ray through ultraviolet ray disinfection lamp simultaneously and further improves disinfection effect.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages of:

(1) when the scheme is used, sewage enters the crushing box through the water inlet pipe, the crushing box crushes impurities in the sewage into fine fragments, the device is prevented from being blocked by the impurities, then the sewage enters the degradation box through the water guide pipe, oxygen is introduced into the water through the oxygen adding box through the oxygen adding pipe to promote aerobic bacteria to degrade the sewage, in the degradation process, the motor is started, the motor drives the stirring rod to rotate so as to drive the stirring frame to rotate to stir the sewage, the blockage caused by the deposition of the impurities in the sewage in the degradation box is avoided, meanwhile, the scraping strips are driven to scrape the impurities adhered to the side wall of the degradation box when the stirring frame rotates, the device is prevented from being blocked, the nondegradable impurities can be discharged through the sludge discharge port for treatment, the blockage caused by excessive accumulation in the degradation box is avoided, the degraded sewage enters the multi-medium filter box through the pressure pump to be filtered, the filtered sewage enters the sterilization and disinfection tank for disinfection through the water outlet pipe of the filter box, and the disinfected purified water is discharged through the water discharge pipe.

(2) The crushing motor is started when the scheme is used, the crushing motor drives the driving shaft to rotate, and then drives the driving wheel to rotate, the driving wheel is connected with the driving wheel through a belt, the driving wheel rotates, and then drives the crushing barrel to rotate, impurities are crushed through the crushing blade in the rotating process of the crushing barrel, and the normal operation of the device is guaranteed.

(3) The outside crushing blade intermeshing of two crushing barrels of this scheme for the impurity of big granule in the sewage can fall into and smashes between the crushing blade, smashes into tiny fragment with impurity, avoids impurity to block up the device.

(4) This scheme stirs the effect that strip increase stirring frame stirred sewage when rotating through the S type, avoids the inside debris of sewage to cause the jam at the inside deposit of degradation case.

(5) The scheme removes suspended or colloidal impurities in water through filtration of various media, particularly can effectively remove micro particles, bacteria and the like which cannot be removed by a precipitation technology, and improves the sewage purification effect.

(6) Sewage adsorbs through the active carbon adsorption layer residual impurity in to the aquatic in this scheme sterilizing tank is inside, adds the disinfectant to the aquatic through the disinfection water pipe, kills the aquatic bacterium, disinfects, produces the ultraviolet ray through the ultraviolet ray disinfection lamp simultaneously and further improves disinfection and sterilization effect.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the structure of the crushing box of the present invention;

fig. 3 is a schematic structural view of the sterilization and disinfection tank of the present invention.

The reference numbers in the figures illustrate:

1. a housing; 2. a water inlet pipe; 3. a crushing box; 4. a water conduit; 5. a degradation box; 6. a motor; 7. a stirring rod; 8. a stirring frame; 9. a bar scraping mounting rack; 10. scraping the strips; 11. an oxygen adding box; 12. an oxygen adding pipe; 13. a sludge discharge port; 14. a water outlet pipe of the degradation tank; 15. a multi-media filtration tank; 16. a pressure pump; 17. a water outlet pipe of the filter tank; 18. sterilizing and disinfecting the tank; 19. a drain pipe; 301. a milling drum; 302. a crushing blade; 303. a rotating shaft; 304. a driving wheel; 305. a grinding motor; 306. a drive shaft; 307. a drive wheel; 308. a belt; 801. an S-shaped stirring bar; 151. an anthracite filter layer; 152. a quartz sand filter layer; 153. magnetite filtering layer; 181. an activated carbon adsorption layer; 182. a sterilizing water tank; 183. disinfecting the water pipe; 184. an ultraviolet disinfection lamp.

Detailed Description

The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, a multimedia purification anti-clogging sewage treatment device comprises a housing 1, a water inlet pipe 2 is communicated with the top of the housing 1, a crushing box 3 is fixedly installed inside the housing 1, the top of the crushing box 3 is communicated with the water inlet pipe 2, a water guide pipe 4 is communicated with the bottom of the crushing box 3, a degradation box 5 is communicated with the bottom end of the water guide pipe 4, a motor 6 is fixedly installed at the top of the degradation box 5, the model of the motor 6 is Y100L-2, an output shaft of the motor 6 is fixedly connected with a stirring rod 7 through a coupler, the bottom end of the stirring rod 7 penetrates through the degradation box 5 and extends into the degradation box 5, a stirring frame 8 is fixedly installed outside the stirring rod 7, a scraping strip mounting frame 9 is fixedly installed at one side of the stirring frame 8, a scraping strip 10 is fixedly installed at one side of the scraping strip mounting frame 9, which is far away from the stirring frame 8, the scraping strip 10, an oxygenation tank 11 is fixedly installed on the left side of the shell 1, an oxygenation pipe 12 is fixedly installed on the right side of the oxygenation tank 11, the right end of the oxygenation pipe 12 sequentially penetrates through the shell 1 and the degradation tank 5 and extends into the degradation tank 5, a sludge discharge port 13 is communicated with the bottom of the degradation tank 5, a degradation tank water outlet pipe 14 is communicated with the bottom of the right side of the degradation tank 5, a multi-medium filter tank 15 is communicated with the right end of the degradation tank water outlet pipe 14, a pressure pump 16 is communicated with the middle of the degradation tank water outlet pipe 14, a filter tank water outlet pipe 17 is communicated with the top of the multi-medium filter tank 15, a sterilization and disinfection tank 18 is communicated with the right end of the filter tank water outlet pipe 17, a water outlet pipe 19 is communicated with the bottom of the sterilization and disinfection tank 18, when the device is used, sewage enters the pulverization tank 3 through a water inlet pipe 2, the pulverization tank 3 pulverizes impurities in the sewage into fine fragments to avoid, let in oxygen to the aquatic through oxygenation case 11 through oxygenation pipe 12, promote aerobic bacteria to degrade sewage, among the degradation process, starter motor 6, motor 6 drives puddler 7 and rotates and then drive agitator 8 and rotate and stir sewage, avoid the inside debris of sewage to cause the jam at the inside deposit of degradation case 5, it strikes off the impurity of degradation case 5 lateral wall adhesion to drive scraping strip 10 when agitator 8 rotates simultaneously, avoid the device to block up, nondegradable impurity accessible mud discharge outlet 13 discharge treatment, it causes the jam to avoid accumulating too much in degradation case 5, sewage after the degradation filters in getting into multimedium rose box 15 through force (forcing) pump 16, get rid of the suspension or the colloidal impurity of aquatic, sewage after the filtration disinfects in getting into disinfection jar 18 through rose box 17, the water purification after the disinfection passes through drain pipe 19 and discharges.

Further, two crushing barrels 301 are rotatably connected inside the crushing box 3, a plurality of crushing blades 302 are fixedly mounted outside each of the two crushing barrels 301, a rotating shaft 303 is fixedly mounted inside each of the crushing barrels 301, a transmission wheel 304 is fixedly mounted at the left end of the rotating shaft 303, a crushing motor 305 is fixedly mounted at the left side of the casing 1, the type of the crushing motor 305 is Y90L-2, an output shaft of the crushing motor 305 is fixedly connected with a driving shaft 306, the right end of the driving shaft 306 penetrates through the casing 1 to extend into the crushing box 3 and is rotatably connected with the crushing box 3 through a bearing, a plurality of driving wheels 307 are fixedly mounted outside the driving shaft 306, a belt 308 is sleeved outside the transmission wheel 304 and the driving wheels 307, the transmission wheel 304 is in transmission connection with the driving wheels 307 through the belt 308, the crushing motor 305 is started during use, the crushing motor 305 drives the driving, the driving wheel 304 is in transmission connection with the driving wheel 307 through the belt 308, so that the driving wheel 304 rotates to further drive the crushing barrel 301 to rotate, impurities are crushed through the crushing blade 302 in the rotation process of the crushing barrel 301, and the normal operation of the device is guaranteed.

Further, two crushing barrel 301 outside crushing blade 302 intermeshing for the impurity of big granule in the sewage can fall into and smash between crushing blade 302, smashes into tiny fragment with impurity, avoids impurity to block up the device.

Further, a plurality of S-shaped stirring strips 801 are fixedly mounted inside the stirring frame 8, the effect of stirring sewage when the stirring frame 8 rotates is increased through the S-shaped stirring strips 801, and blockage caused by deposition of impurities inside the sewage in the degradation box 5 is avoided.

Furthermore, an anthracite filter layer 151, a quartz sand filter layer 152 and a magnetite filter layer 153 are fixedly arranged in the multi-medium filter box 15 from top to bottom in sequence, suspended or colloidal impurities in water are removed through filtering of various media, particularly, micro particles and bacteria and the like which cannot be removed by a precipitation technology can be effectively removed, and the sewage purification effect is improved.

Further, the inside fixed mounting of the disinfection and isolation jar 18 has active carbon adsorption layer 181, the right side fixed mounting of the disinfection and isolation jar 18 has disinfection water tank 182, the left side fixed mounting of disinfection water tank 182 has disinfection water pipe 183, the left end of disinfection water pipe 183 runs through the disinfection and isolation jar 18 and extends to the inside of the disinfection and isolation jar 18, the below fixed mounting that the inside wall of the disinfection and isolation jar 18 is located active carbon adsorption layer 181 has a plurality of ultraviolet ray disinfection lamps 184, sewage is adsorbed the aquatic residual impurity through active carbon adsorption layer 181 in the disinfection and isolation jar 18 inside, add the sterile water to the aquatic through disinfection water pipe 183, kill the aquatic bacterium, disinfect, produce the ultraviolet ray through ultraviolet ray disinfection lamp 184 simultaneously and further improve the disinfection and isolation effect.

The working principle is as follows: when the device is used, sewage enters the crushing box 3 through the water inlet pipe 2, the crushing box 3 crushes impurities in the sewage into fine fragments, the device is prevented from being blocked by the impurities, then the sewage enters the degradation box 5 through the water guide pipe 4, oxygen is introduced into the water through the oxygen adding box 11 through the oxygen adding pipe 12 to promote aerobic bacteria to degrade the sewage, in the degradation process, the motor 6 is started, the motor 6 drives the stirring rod 7 to rotate and further drives the stirring frame 8 to rotate to stir the sewage, the blockage caused by the deposition of impurities in the sewage in the degradation box 5 is avoided, meanwhile, the scraping strip 10 is driven to scrape the impurities adhered to the side wall of the degradation box 5 when the stirring frame 8 rotates, the device is prevented from being blocked, nondegradable impurities can be discharged through the sludge discharge port 13 for treatment, the blockage caused by the excessive accumulation in the degradation box 5 is avoided, the degraded sewage enters the multi-medium filter box 15 through the pressure pump 16, get rid of the suspension or colloidal state impurity of aquatic, sewage after the filtration disinfects in the disinfection jar 18 that gets into through rose box outlet pipe 17, and the water purification after the disinfection is discharged through drain pipe 19, has solved current sewage treatment plant when using, can't handle great impurity in the sewage, and the phenomenon of jam often can take place, influences sewage treatment efficiency, takes a large amount of manpowers and the strength of a timber to dredge after the jam, causes the problem of economic aspect loss.

The above description is only the preferred embodiment of the present invention; the scope of the present invention is not limited thereto. Any person skilled in the art should also be able to cover the technical scope of the present invention by replacing or changing the technical solution and the improvement concept of the present invention with equivalents and modifications within the technical scope of the present invention.

Claims

1. The utility model provides a multi-media purifies prevents blockking up nature sewage treatment plant, includes casing (1), its characterized in that: the top intercommunication of casing (1) has inlet tube (2), the inside fixed mounting of casing (1) has crushing case (3), the top and inlet tube (2) of crushing case (3) are linked together, the bottom intercommunication of crushing case (3) has aqueduct (4), the bottom intercommunication of aqueduct (4) has degradation case (5), the top fixed mounting of degradation case (5) has motor (6), the output shaft of motor (6) passes through shaft coupling fixedly connected with puddler (7), the bottom of puddler (7) runs through degradation case (5) and extends to the inside of degradation case (5), the outside fixed mounting of puddler (7) has a stirring frame (8), one side fixed mounting that puddler (7) were kept away from in stirring frame (8) of stirring frame (8) has a scraping strip mounting bracket (9), one side fixed mounting that stirring frame (8) was kept away from in scraping strip mounting bracket (9) has scraping strip (10), the utility model discloses a multi-media filter box, including casing (1), oxygen adding box (5), scrape strip (10), oxygen adding box (11), oxygen adding pipe (12), degradation box (5), degradation box (14), multi-media filter box (15), pressure pump (16) is communicated to the middle part of degradation box outlet pipe (14), multi-media filter box (15) is communicated to the top intercommunication of multi-media filter box (15), the right-hand member intercommunication of filter box outlet pipe (17) has disinfection tank (18), the bottom end of the sterilizing and disinfecting tank (18) is communicated with a drain pipe (19).

2. The multi-media purification anti-clogging sewage treatment device according to claim 1, wherein: two crushing barrels (301) are rotatably connected inside the crushing box (3), a plurality of crushing blades (302) are fixedly arranged outside the two crushing barrels (301), a rotating shaft (303) is fixedly arranged in the crushing barrel (301), a driving wheel (304) is fixedly arranged at the left end of the rotating shaft (303), a crushing motor (305) is fixedly arranged at the left side of the shell (1), an output shaft of the crushing motor (305) is fixedly connected with a driving shaft (306), the right end of the driving shaft (306) penetrates through the shell (1) to extend to the interior of the crushing box (3) and is rotationally connected with the crushing box (3) through a bearing, a plurality of driving wheels (307) are fixedly arranged outside the driving shaft (306), a belt (308) is sleeved outside the driving wheel (304) and the driving wheel (307), the transmission wheel (304) is in transmission connection with a driving wheel (307) through a belt (308).

3. The multi-media purification anti-clogging sewage treatment device according to claim 2, wherein: the crushing blades (302) outside the two crushing cylinders (301) are mutually meshed.

4. The multi-media purification anti-clogging sewage treatment device according to claim 1, wherein: a plurality of S-shaped stirring strips (801) are fixedly arranged in the stirring frame (8).

5. The multi-media purification anti-clogging sewage treatment device according to claim 1, wherein: an anthracite filter layer (151), a quartz sand filter layer (152) and a magnetite filter layer (153) are fixedly arranged in the multi-medium filter box (15) from top to bottom in sequence.

6. The multi-media purification anti-clogging sewage treatment device according to claim 1, wherein: the inside fixed mounting of the disinfection tank (18) that disinfects has active carbon adsorption layer (181), the right side fixed mounting of the disinfection tank (18) that disinfects has disinfection water tank (182), the left side fixed mounting of disinfection water tank (182) has disinfection water pipe (183), the left end of disinfection water pipe (183) runs through the disinfection tank (18) that disinfects and extends to the inside of the disinfection tank (18) that disinfects, the inside wall of the disinfection tank (18) that disinfects is located the below fixed mounting of active carbon adsorption layer (181) has a plurality of ultraviolet ray disinfection lamps (184).