JP6724596B2 - Sterilization device and hot water device - Google Patents

Description

The present invention relates to a disinfection device and a hot water device.

As a device for sterilizing a fluid, a water sterilizing device described in JP-A-2014-100690 (Patent Document 1) and a sterilizing device described in Japanese Patent No. 3001354 (Patent Document 2) are known.

The water disinfection device described in Patent Document 1 has a cylindrical outer cylinder case, an ultraviolet discharge lamp housed inside the outer cylinder case, and an ultraviolet discharge lamp inserted inside the outer cylinder case. It has a protective tube. The space between the outer peripheral surface of the protection tube and the inner peripheral surface of the outer cylinder case serves as a flow path for water to be sterilized. The protection tube is made of quartz glass.

The sterilization device described in Patent Document 2 has a tubular container, an ultraviolet lamp housed inside the tubular container, and a protective tube that is disposed inside the tubular container and into which the ultraviolet lamp is inserted. There is. The space between the outer peripheral surface of the protective tube and the inner peripheral surface of the tubular container serves as a flow path for hot and cold water to be sterilized. The protection tube is made of quartz glass.

JP, 2014-100690, A Japanese Patent No. 3001354

In the water disinfection device described in Patent Document 1 and the sterilization device described in Patent Document 2, the protective tube is in direct contact with the water or the like to be disinfected which flows through the flow path. Therefore, in the water disinfection device described in Patent Document 1 and the sterilization device described in Patent Document 2, when the protective tube is damaged, the fragments of the quartz glass forming the protective tube are the water to be disinfected. There is a risk that it will be mixed in with etc.

The present invention has been made in view of such problems of the conventional technology. Specifically, the present invention, when the disinfection lamp protection tube is damaged, fragments of the disinfection lamp protection tube and the like, and a disinfection device and hot water capable of suppressing contamination of the fluid to be disinfected with the fluid. A device is provided.

A disinfection device according to one aspect of the present invention includes a disinfection lamp, a main body, a disinfection lamp protection tube, and an outflow prevention tube. The main body portion has a flow path for a fluid to be sterilized therein. The main body contains a sanitizing lamp inside. The main body has an opening at the end. The sterilization lamp protection tube is arranged inside the main body, and the sterilization lamp is inserted therein. The outflow prevention tube is disposed inside the main body, has the disinfection lamp protection tube inserted therein, and is made of a material different from that of the disinfection lamp protection tube.

According to the disinfection device according to one aspect of the present invention, when the disinfection lamp protection tube is damaged, it is possible to prevent fragments of the disinfection lamp protection tube or the like from being mixed in the fluid to be disinfected. ..

The sterilization apparatus may further include a lid member, an outflow prevention pipe fixing lid, and a seal member. The lid member is arranged at the end of the main body. The outflow prevention pipe fixed lid holds the inner peripheral surface of the outflow prevention pipe. The seal member seals between the outer peripheral surface of the outflow prevention tube and the lid member in a watertight manner. In this case, even if the outflow prevention pipe is thin, the watertightness between the inside of the outflow prevention pipe and the flow path can be ensured. Therefore, when the disinfection lamp protection tube is damaged, it is possible to further prevent the fragments of the disinfection lamp protection tube and the like from being mixed in the fluid to be disinfected.

In the above sterilization device, the length of the main body of the outflow prevention tube in the central axis direction may be longer than the length of the main body of the sterilization lamp protection tube in the central axis direction.

In the above sterilization apparatus, the outflow prevention tube may be arranged at a position where the inner peripheral surface of the outflow prevention tube comes into contact with the outer peripheral surface of the disinfection lamp protection tube when the fluid is flowing in the flow path. .. In this case, the pressure when the fluid flows through the flow path is also dispersed in the disinfection lamp protection tube. Therefore, this makes it possible to suppress damage to the outflow prevention pipe due to changes in pressure over time.

The above sterilization device is a lid member arranged at the end of the main body, and is arranged between the outer peripheral surface of the sterilization lamp protection tube and the lid member, and the outer peripheral surface of the sterilization lamp protection tube and the lid member. You may further provide the sealing member which watertightly seals between. In this case, the outflow prevention pipe does not receive hydraulic pressure from the fluid to be sterilized that flows through the flow path. Therefore, when the disinfection lamp protection tube is damaged, it is possible to prevent the fragments of the disinfection lamp protection tube from mixing with the fluid to be disinfected, and to prevent damage to the outflow prevention tube. It becomes possible to do.

In the above sterilization apparatus, the lid member may have a rib. The rib is provided so as to surround the outer peripheral surface of the outflow prevention tube. In this case, the movement of the outflow prevention pipe in the direction perpendicular to the central axis of the main body is restricted. Therefore, when the disinfection lamp protection tube is damaged, it is possible to further prevent the fragments of the disinfection lamp protection tube and the like from being mixed in the fluid to be disinfected.

In the above sterilization apparatus, the thickness of the outflow prevention tube may be 0.3 mm or more and 0.5 mm or less. The thickness of the outflow prevention tube is the thickness in the direction from the inner peripheral surface to the outer peripheral surface of the outflow prevention tube. As a result, while maintaining the sterilization effect on the fluid, when the sterilization lamp protection tube is damaged, it is possible to prevent fragments of the sterilization lamp protection tube from mixing into the fluid to be sterilized. Is possible.

A hot water apparatus according to one aspect of the present invention includes a circulation path and the above-described sterilization apparatus arranged on the circulation path. Accordingly, when the disinfection lamp protection tube is damaged, it is possible to prevent the fragments of the disinfection lamp protection tube and the like from mixing into the fluid to be disinfected.

According to the sterilization apparatus and the hot water apparatus according to one aspect of the present invention, when the sterilization lamp protection tube is damaged, fragments of the sterilization lamp protection tube and the like are mixed in the fluid to be sterilized. It becomes possible to suppress.

1 is a perspective view of an embodiment of a disinfection device according to Embodiment 1. FIG. It is sectional drawing in II-II of FIG. FIG. 4 is a schematic diagram illustrating a modified aspect of the outflow prevention tube when the fluid to be sterilized flows in the flow path when the sterilization apparatus according to the first embodiment does not have the outflow prevention tube fixing lid. FIG. 3 is a schematic diagram illustrating a modified aspect of the outflow prevention tube when the fluid to be sterilized flows in the flow path when the sterilization apparatus according to the first embodiment has the outflow prevention tube fixed lid. FIG. 3 is a schematic diagram illustrating a positional relationship between an outflow prevention tube and a sterilization lamp protection tube when a fluid to be sterilized flows in a flow path in the sterilization apparatus according to the first embodiment. It is a perspective view of the embodiment of the sterilization apparatus concerning Embodiment 2. It is sectional drawing in VII-VII of FIG. It is a schematic diagram which shows the structure of the hot water apparatus which concerns on Embodiment 3.

(Embodiment 1)
The sterilization apparatus according to the first embodiment will be described below with reference to FIGS. 1 to 5. In the drawings, the same or corresponding parts are designated by the same reference numerals. Further, at least a part of the embodiments described below may be arbitrarily combined. Furthermore, dimensional relationships such as length, width, thickness, and depth have been appropriately changed for clarity of the drawings, and do not represent actual dimensional relationships.

The configuration of the sterilization apparatus according to the first embodiment will be described below. As shown in FIG. 1, the disinfection device according to the first embodiment includes a main body part 1, a disinfection lamp 2, and a lid member 3. The lid member 3 is composed of a pair of a first lid member 3a and a second lid member 3b. The disinfection device according to the first embodiment may further include a fixing member 4.

As shown in FIG. 2, the disinfection device according to the first embodiment further includes a disinfection lamp protection tube 12 and an outflow prevention tube 13.

The main body 1 has a tubular shape. Preferably, the main body 1 has a cylindrical shape. That is, the cross section in the direction perpendicular to the central axis A1 of the main body 1 is preferably circular. For the main body 1, for example, stainless steel or the like is used.

The main body 1 has a channel 11 inside. A fluid to be sterilized (for example, hot water) flows through the flow path 11. The space between the outer peripheral surface of the outflow prevention tube 13 and the inner peripheral surface of the main body 1 described below serves as the flow path 11. That is, the flow path 11 is defined by the outer peripheral surface of the outflow prevention tube 13 and the inner peripheral surface of the main body 1.

The main body 1 has an end 1a. The end portion 1a is a portion located at an end in a direction parallel to the central axis A1 of the main body portion 1. At the end 1a, the main body 1 has an opening 1b. The main body 1 preferably has openings 1b at both ends 1a. Preferably, the end portion 1a has a shape that widens in the outer peripheral direction when viewed from the direction parallel to the central axis A1 of the main body portion 1. This makes it easy to insert the lid member 3 into the main body 1.

A disinfection lamp protection tube 12 is arranged inside the main body 1. The sterilization lamp protection tube 12 is a member for protecting the sterilization lamp 2 from the fluid to be sterilized which flows through the flow path 11. The disinfection lamp protection tube 12 preferably has a cylindrical shape. The disinfection lamp protection tube 12 is longer than the main body 1. The disinfection lamp protection tube 12 is transparent to the light emitted from the disinfection lamp 2. Quartz glass, for example, is used for the disinfection lamp protection tube 12.

An outflow prevention tube 13 is provided inside the main body 1. The outflow prevention tube 13 is a member for preventing the debris of the sterilization lamp protection tube 12 from being mixed with the fluid to be sterilized flowing through the flow path 11 when the sterilization lamp protection tube 12 is damaged. is there. The sterilization lamp protection tube 12 is inserted into the outflow prevention tube 13.

The outflow prevention tube 13 preferably has a cylindrical shape. The outflow prevention tube 13 is longer than the main body 1. The outflow prevention tube 13 is preferably longer than the disinfection lamp protection tube 12. The outflow prevention tube 13 is transparent to the light emitted from the disinfection lamp 2. The material of the outflow prevention tube 13 and the disinfection lamp protection tube 12 is different. More specifically, the outflow prevention tube 13 is preferably more flexible than the disinfection lamp protection tube 12 so that the outflow prevention tube 13 is less likely to be damaged.

The outflow prevention pipe 13 has a thickness T. The thickness T of the outflow prevention tube 13 is the thickness in the direction from the inner peripheral surface of the outflow prevention tube 13 toward the outer peripheral surface. The thickness T of the outflow prevention tube 13 is preferably such that the transmittance for the light emitted from the germicidal lamp 2 is 70% or more. In this case, the light emitted from the germicidal lamp 2 maintains illuminance even after passing through the outflow prevention tube 13 so that germs in the fluid to be germinated can be effectively sterilized.

If the thickness T of the outflow prevention tube 13 is too thin, the rigidity of the outflow prevention tube 13 is reduced. Therefore, the thickness T of the outflow prevention tube 13 is preferably 0.3 mm or more. The thickness T of the outflow prevention tube 13 is more preferably 0.4 mm or more.

The outflow prevention tube 13 is preferably arranged at a position where the inner peripheral surface of the outflow prevention tube 13 comes into contact with the outer peripheral surface of the disinfection lamp protection tube 12 when the fluid to be disinfected flows through the flow path 11. .. More specifically, the outflow prevention tube 13 is arranged such that the distance D between the inner peripheral surface of the outflow prevention tube 13 and the outer peripheral surface of the disinfection lamp protection tube 12 is 0.05 mm or more and 0.35 mm or less. Preferably.

For the outflow prevention pipe 13, for example, a fluororesin such as FEP (tetrafluoroethylene hexafluoropropylene copolymer) is used. However, the material used for the outflow prevention tube 13 is not limited to the fluorine resin such as FEP. The material used for the outflow prevention tube 13 may be any material that is transparent to the light emitted from the sterilization lamp 2 and stable to the light emitted from the sterilization lamp 2.

The disinfection lamp 2 is a lamp that emits light for disinfecting a fluid. Preferably, the disinfection lamp 2 is a fluorescent lamp that emits ultraviolet rays. The sterilization lamp 2 may be an LED (Light Emitting Diode) that emits ultraviolet rays. That is, the disinfection lamp 2 is not particularly limited as long as it is a lamp that disinfects a fluid.

The disinfection lamp 2 is arranged inside the main body 1. Specifically, the disinfection lamp 2 is inserted inside the disinfection lamp protection tube 12. The disinfection lamp 2 has a shape extending in a direction parallel to the central axis A1 of the main body 1. The end of the sterilization lamp 2 is an electrical component 21 to which a socket and electrical components are attached.

The first lid member 3 a has an inner side surface 31, an outer side surface 32, and an outer peripheral surface 33. The inner side surface 31 is a surface that is inserted into the main body 1. The outer side surface 32 is a surface opposite to the inner side surface 31. A water inlet 33a is provided on the outer peripheral surface 33. The water inlet 33a has a hollow cylindrical shape. Specifically, the inside of the water inlet 33a is a water inlet side connection port 33b.

The inner surface 31 side of the first lid member 3a is a tip portion 34. The tip portion 34 has an outer diameter substantially equal to the inner diameter of the main body 1. The first lid member 3a is arranged in the opening 1b by inserting the tip 34 into the opening 1b of the main body 1. A seal member 35 is arranged between the tip 34 and the end 1 a of the body 1. The seal member 35 is, for example, an O-ring. As a result, the opening 1b is closed and the fluid to be sterilized is prevented from flowing out of the main body 1.

A cavity 36 is provided inside the first lid member 3a. The cavity 36 is located closer to the outer surface 32 than the tip portion 34 is. The cavity 36 is open to the inner surface 31 side of the first lid member 3a. As a result, the cavity 36 communicates with the flow path 11. The inner diameter of the cavity 36 is larger than the outer diameter of the outflow prevention tube 13. As a result, a space is formed between the inner wall 36 a of the cavity 36 and the outer peripheral surface of the outflow prevention tube 13. Therefore, the fluid to be sterilized, which has been injected into the water inlet side connection port 33b, flows into the flow path 11 provided inside the main body 1 through the cavity 36.

A lamp insertion hole 37 is provided on the outer surface 32 side of the first lid member 3a. The lamp insertion hole 37 communicates with the cavity 36. The inner diameter of the lamp insertion hole 37 is substantially equal to the outer diameter of the outflow prevention tube 13. The disinfection lamp 2 is inserted into the disinfection lamp protection tube 12 through the lamp insertion hole 37.

The end of the outflow prevention tube 13 is inserted into the lamp insertion hole 37. A seal member 38 is arranged between the first lid member 3 a and the outer peripheral surface of the outflow prevention pipe 13. More specifically, the seal member 38 is arranged between the inner peripheral surface of the lamp insertion hole 37 and the outer peripheral surface of the outflow prevention tube 13. The seal member 38 is, for example, an O-ring. As a result, the first lid member 3a and the outer peripheral surface of the outflow prevention tube 13 are watertightly sealed. That is, the fluid to be sterilized is prevented from flowing out from the first lid member 3a.

The disinfection device according to the first embodiment may have the outflow prevention pipe fixing lid 14. The outflow prevention tube fixing lid 14 is inserted into the lamp insertion hole 37. A part of the outflow prevention pipe fixing lid 14 is inserted into an end portion of the outflow prevention pipe 13. The portion of the outflow prevention pipe fixing lid 14 that is inserted into the end of the outflow prevention pipe 13 is in contact with the inner peripheral surface of the outflow prevention pipe 13. Thereby, the outflow prevention pipe fixing lid 14 holds the inner peripheral surface of the outflow prevention pipe 13.

The second lid member 3b is the same as the first first lid member 3a except that it has a water outlet 33d and a water outlet side connection port 33e instead of the water inlet portion 33a and the water inlet side connection port 33b. Have a configuration. Preferably, the second lid member 3b has the same shape as the first lid member 3a.

For example, a resin material is used for the first first lid member 3a and the second lid member 3b. This resin material is, for example, SPS (syndiotactic polystyrene).

The lamp fixing member 22 is provided on the outer surface 32 of the first lid member 3a. The lamp fixing member 22 fixes the sterilization lamp 2 installed inside the sterilization lamp protection tube 12 through the lamp insertion hole 37 of the first lid member 3a. The lamp fixing member 22 is fixed to the outer side surface 32 of the first lid member 3a with, for example, a screw. For the lamp fixing member 22, SPS or the like is used, for example.

The fixing member 4 is arranged so as to sandwich the first lid member 3 a and the second lid member 3 b and the main body 1 from the central axis direction of the main body 1. As a result, the first lid member 3a and the second lid member 3b are fixed to the main body 1. The fixing member 4 has a central portion 41 and a fixing portion 42. The central portion 41 is located at the center of the fixing member 4 and extends along the central axis direction of the main body 1. The fixing portion 42 is fixed to the outer side surfaces 32 of the first lid member 3a and the second lid member 3b with screws or the like.

The fixing member 4 is formed, for example, by bending a single plate-shaped member using a press die. For the fixing member 4, for example, SGCC (hot dip galvanized steel sheet) is used.

The operation of the sterilization apparatus according to the embodiment will be described below. A fluid to be sterilized is supplied to the water inlet side connection port 33b of the sterilization apparatus according to the embodiment. The supplied fluid to be sterilized flows through the flow path 11 provided inside the main body 1.

While the fluid to be sterilized flows through the flow path 11, the fluid to be sterilized is irradiated with ultraviolet rays from the sterilization lamp 2. As a result, the germs contained in the fluid to be sterilized are sterilized. Then, the fluid sterilized in the flow path 11 flows out from the water outlet side connection port 33e. As described above, the sterilization process is performed when the fluid to be sterilized passes through the sterilization apparatus according to the embodiment.

The effects of the sterilization apparatus according to the first embodiment will be described below. The sterilization apparatus according to the first embodiment has an outflow prevention tube 13 arranged inside the main body 1. The sterilization lamp protection tube 12 is inserted in the outflow prevention tube 13. Therefore, when the sterilization lamp protection tube 12 is damaged, it is possible to prevent the fragments and the like of the sterilization lamp protection tube 12 from mixing with the fluid to be sterilized that flows through the flow path 11 inside the main body 1.

As shown in FIG. 3, in the sterilization apparatus according to the first embodiment, when the thickness T of the outflow prevention tube 13 is thin, the outflow prevention tube 13 flows due to the pressure of the fluid to be sterilized in the flow path 11. May be deformed. When such deformation occurs, it becomes difficult to maintain the watertightness in the sealed portion between the outflow prevention tube 13 and the lid member 3.

However, when the disinfection device according to the first embodiment has the outflow prevention pipe fixing lid 14, the outflow prevention pipe fixing lid 14 supports the inner peripheral surface of the outflow prevention pipe 13. Therefore, in this case, as shown in FIG. 4, the outflow prevention tube 13 is not easily deformed in the vicinity of the sealing portion between the outflow prevention tube 13 and the lid member 3. As a result, in this case, even if the thickness T of the outflow prevention tube 13 is thin, the watertightness of the sealed portion between the outflow prevention tube 13 and the lid member 3 can be ensured. That is, in this case, it is possible to further prevent the fragments of the sterilization lamp protection tube and the like from mixing into the fluid to be sterilized.

In the sterilization apparatus according to the first embodiment, when the fluid to be sterilized is flowing in the flow channel 11, as shown in FIG. Then, the outflow prevention pipe 13 is deformed.

In the sterilization apparatus according to the first embodiment, when the fluid to be sterilized flows in the flow path 11, the inner peripheral surface of the outflow prevention tube 13 comes into contact with the outer peripheral surface of the sterilization lamp protection tube 12. When arranged in the position, the pressure of the fluid to be sterilized that flows in the flow path 11 is dispersed in the outflow prevention tube 13 and the sterilization lamp protection tube 12. When a negative pressure is generated in the flow path 11, only the outflow prevention pipe 13 receives the negative pressure, and the disinfection lamp protection pipe 12 does not receive the negative pressure. Therefore, in this case, it is possible to suppress damage to the outflow prevention pipe 13 due to pressure change over time.

In the disinfection device according to the first embodiment, the thickness T of the outflow prevention tube 13 is such that the transmittance for the light emitted from the disinfection lamp 2 is 70% or more (for example, 0. If it is 3 mm or more and 0.5 mm or less), while maintaining the sterilization effect on the fluid to be sterilized, it is possible that fragments of the sterilization lamp protection tube 12 are mixed into the fluid to be sterilized. It becomes possible to suppress.

(Embodiment 2)
The sterilization apparatus according to the second embodiment will be described below with reference to FIGS. 6 and 7. Here, the difference from the sterilization apparatus according to the first embodiment will be mainly described, and the description of the overlapping points will not be repeated.

The configuration of the sterilization apparatus according to the second embodiment will be described below. As shown in FIGS. 6 and 7, the sterilization apparatus according to the second embodiment includes a main body part 1, a sterilization lamp 2, and a lid member 3. The lid member 3 is composed of a pair of a first lid member 3a and a second lid member 3b. The sterilization apparatus according to the second embodiment may further include the fixing member 4.

The disinfection device according to the second embodiment includes a disinfection lamp protection tube 12 and an outflow prevention tube 13. The disinfection lamp protection tube 12 is preferably longer than the outflow prevention tube 13.

In the disinfection device according to the second embodiment, the inner diameter of the lamp insertion hole 37 is substantially equal to the outer diameter of the disinfection lamp protection tube 12. The end portion of the disinfection lamp protection tube 12 is inserted into the lamp insertion hole 37. A seal member 38 is arranged between the first lid member 3 a and the outer peripheral surface of the sterilization lamp protection tube 12.

More specifically, a seal member 38 is arranged between the inner peripheral surface of the lamp insertion hole 37 and the outer peripheral surface of the sterilization lamp protection tube 12. As a result, the first lid member 3a and the outer peripheral surface of the germicidal lamp protection tube 12 are watertightly sealed. That is, the fluid to be sterilized is prevented from flowing out from the first lid member 3a.

From another point of view, in the sterilization apparatus according to the second embodiment, the position of the outflow prevention tube 13 is not fixed inside the main body 1.

In the disinfection device according to the second embodiment, the first lid member 3a may have the rib 39. The rib 39 is arranged between the inner wall 36 a of the cavity 36 and the outer peripheral surface of the outflow prevention tube 13. The rib 39 extends along the outer peripheral surface of the outflow prevention tube 13 toward the main body 1 side. From another viewpoint, the rib 39 is arranged so as to surround the outer peripheral surface of the outflow prevention tube 13.

The effects of the disinfection device according to the second embodiment will be described below. The sterilization apparatus according to the second embodiment has an outflow prevention tube 13 arranged inside the main body 1. The sterilization lamp protection tube 12 is inserted in the outflow prevention tube 13. Therefore, when the sterilization lamp protection tube 12 is damaged, it is possible to prevent the fragments and the like of the sterilization lamp protection tube 12 from mixing with the fluid to be sterilized that flows through the flow path 11 inside the main body 1.

Further, in the disinfection device according to the second embodiment, the position of the outflow prevention tube 13 is not fixed inside the main body 1. That is, the outflow prevention tube 13 is released from the pressure of the fluid to be sterilized that flows through the flow path 11. Therefore, in the sterilization apparatus according to the second embodiment, the outflow prevention pipe 13 is damaged by the deformation caused by the pressure of the fluid to be sterilized that flows in the flow path 11 (for example, the outflow prevention pipe 13 has a center portion of the main body portion 1). It is possible to suppress the occurrence of wrinkles along the axial direction).

In the sterilization apparatus according to the second embodiment, when the lid member 3 has the ribs 39, the movement of the outflow prevention tube 13 in the direction perpendicular to the central axis of the main body 1 is restricted. Therefore, in this case, it is possible to further suppress the fragments of the sterilization lamp protection tube 12 and the like from being mixed into the fluid to be sterilized.

(Embodiment 3)
The configuration of the hot water supply device as an example of the hot water device according to the third embodiment will be described below with reference to FIG. 8. The hot water device according to the third embodiment includes a hot water supply path 51, a bath circulation path 52, and a pouring path 53.

The hot water supply path 51 is a path for heating clean water. The hot water supply path 51 has a pipe 51a, a pipe 51b, and a heat exchanger 51c. One end of the pipe 51a is connected to water supply. The other end of the pipe 51a is connected to one end of the heat exchanger 51c. The other end of the heat exchanger 51c is connected to one end of the pipe 51b. The other end of the pipe 51b is connected to a curran or the like. A burner 51d is arranged near the heat exchanger 51c.

The bath circulation path 52 is a path for heating hot water in the bathtub 6. The bath circulation path 52 has a pipe 52a, a pipe 52b, a pipe 52c, a sterilization device 52d, and a heat exchanger 52e. The disinfection device 52d is the disinfection device according to the first and second embodiments described above.

One end of the pipe 52a is connected to the water inlet side connection port 33b of the sterilization device 52d. The other end of the pipe 52a is connected to the circulation adapter 61. The water outlet side connection port 33e of the sterilization device 52d is connected to one end of the pipe 52b. The other end of the pipe 52b is connected to one end of the heat exchanger 52e. The other end of the heat exchanger 52e is connected to one end of the pipe 52c. The other end of the pipe 52c is connected to the circulation adapter 61. A burner 52f is arranged near the heat exchanger 52e. A circulation pump 52g is provided on the pipe 52a. When the disinfection device 52d is attached to the casing of the hot water supply device, the central portion 41 of the fixing member 4 serves as a guide for attachment.

The pouring path 53 is a path for flowing hot water from the hot water supply path 51 into the bath circulation path 52. One end of the pouring path 53 is connected to the hot water supply path 51. More specifically, one end of the pouring path 53 is connected to the pipe 51b. The other end of the pouring path 53 is connected to the bath circulation path 52. More specifically, the other end of the pouring path 53 is connected to the pipe 52a. A pouring valve 53a is provided on the pouring path 53.

The circulation adapter 61 is provided in the bathtub 6. The circulation adapter 61 has a discharge port and a suction port.

The operation of the hot water supply device as an example of the hot water device according to the embodiment will be described below.
First, the hot water supply operation will be described. The supplied clean water is supplied to the heat exchanger 51c through the pipe 51a. The clean water supplied to the heat exchanger 51c is heated in the heat exchanger 51c to become hot water. This hot water is supplied to the currant or the like via the pipe 51b.

Next, the filling operation will be described. The supplied clean water is supplied to the heat exchanger 51c through the pipe 51a. The clean water supplied to the heat exchanger 51c is heated in the heat exchanger 51c to become hot water. During the filling operation, the pouring valve 53a is open. Therefore, this hot water is supplied to the bathtub 6 through the pouring path 53, the pipe 52c, and the discharge port of the circulation adapter 61.

Further, the disinfection operation will be described. By the circulation pump 52g, the hot water in the bathtub 6 is sucked up from the suction port of the circulation adapter 61 in the direction of the arrow in the figure. The sucked hot water is supplied to the sterilization device 52d through the pipe 52a. The hot water supplied to the disinfection device 52d is disinfected in the disinfection device 52d. The sterilized hot water is returned to the bath 6 through the pipe 52b, the heat exchanger 52e, the pipe 52c, and the discharge port of the circulation adapter 61. As a result, the hot water in the bathtub 6 is sterilized. The hot water sterilized by the sterilization device 52d may be heated in the heat exchanger 52e. That is, the disinfection operation may be performed during the reheating operation.

The effects of the water heating device according to the third embodiment will be described below. In the hot water device according to the third embodiment, it is possible to prevent the fragments and the like of the sterilization lamp protection tube 12 from mixing with the fluid to be sterilized.

The embodiments disclosed this time are to be considered as illustrative in all points and not restrictive. The scope of the present invention is shown not by the above-described embodiments but by the scope of the claims, and is intended to include meanings equivalent to the scope of the claims and all modifications within the scope.

DESCRIPTION OF SYMBOLS 1 main body part, 1a end part, 1b opening part, 11 flow path, 12 disinfection lamp protection tube, 13 outflow prevention tube, 14 outflow prevention tube fixing lid, 2 disinfection lamp, 21 electrical equipment section, 22 lamp fixing member, 3 Lid member, 3a First lid member, 3b Second lid member, 6 Bath, 31 Inner side surface, 32 Outer side surface, 33 Outer peripheral surface, 33a Water inlet, 33b Water inlet connection port, 33d Water outlet, 33e Water outlet connection Mouth, 34 tip portion, 35, 38 sealing member, 36 cavity, 36a inner wall, 37 lamp insertion hole, 39 rib, 4 fixing member, 41 central portion, 42 fixing portion, 51 hot water supply passage, 51a, 51b, 52a, 52b, 52c piping, 51c, 52e heat exchanger, 51d, 52f burner, 52 bath circulation path, 52d disinfection device, 52g circulation pump, 53 pouring path, 53a pouring valve, 61 circulation adapter, A1 central axis line, D interval, T thickness.

Claims (7)

Disinfection lamp,
Inside, having a flow path of the fluid to be sterilized, housing the sterilization lamp, and a main body having an opening at the end,
A sterilization lamp protection tube that is disposed inside the sterilization lamp and has the sterilization lamp inserted thereinto,
Arranged inside, the sterilization lamp protection tube is inserted, and comprises an outflow prevention tube made of a material different from the sterilization lamp protection tube,
The length in the central axis direction of the main body of the outflow prevention tube is longer than the length in the central axis direction of the main body of the disinfection lamp protection tube,
The sterilization device, wherein the outflow prevention tube is made of a material transparent to the light emitted from the sterilization lamp . A lid member arranged at the end,
An outflow prevention pipe fixing lid for holding the inner peripheral surface of the outflow prevention pipe,
The seal member arranged between the outer peripheral surface of the outflow prevention pipe and the lid member, further comprising a seal member that seals the outer peripheral surface of the outflow prevention pipe and the lid member in a watertight manner. Sterilizer. The outflow preventing tube, when the fluid is flowing in the flow path, the inner peripheral surface of the outflow preventing tube is placed in contact with the outer peripheral surface of the sterilization lamp protective tube, according to claim 1 or filtering apparatus according to 2. A lid member arranged at the end,
A seal member, which is disposed between the outer peripheral surface of the sterilization lamp protection tube and the lid member, and seals the outer peripheral surface of the sterilization lamp protection tube and the lid member in a watertight manner, Item 1. The disinfection device according to item 1. The sterilization apparatus according to claim 4 , wherein the lid member has a rib provided so as to surround an outer peripheral surface of the outflow prevention tube. The inner circumferential surface thickness in the direction toward the outer circumference from the outflow preventing tube is 0.3mm or more, filtering apparatus according to any one of claims 1-5. Circulation path,
Wherein arranged on the circulation path, and a the filtering apparatus according to any one of claims 1 to 6, the water heater.

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