JPH061147Y2 - Steam ejector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial application field) The present invention relates to a steam ejector for ejecting high-temperature steam into a sauna chamber in a steam sauna.

(Prior Art) A steam ejector used in a steam sauna is usually mounted on the wall surface of a sauna room, in which case it is necessary to prevent thermal deterioration of the mounting wall as well as safety for bathers. Therefore, the applicant of the present application is
Proposed the steam ejector shown in Fig. 3. The third below
Explaining the configuration shown in the figure, the brass nozzle outer tube 1
A brass nozzle inner tube 2 is screwed into the inner surface of the nozzle outer tube 1, and a back cover 3 made of a heat-resistant resin is sandwiched between the collar portion 1a of the nozzle outer tube 1 and the collar portion 2a of the nozzle inner tube 2. The back cover 3 has a peripheral edge portion that bulges forward and the outer peripheral edge is folded back to form a peripheral wall portion 3c to form a heat insulating space A between the back cover 3 and the wall surface.
Has been formed. The outer cover 5 is fitted onto the peripheral wall portion 3c of the back cover 3, and the outer cover 5 is provided with a slit-shaped ejection port. Reference numeral 6 is a heat insulating adapter having a flange portion 6a, and the heat insulating adapter 6 is fitted onto the nozzle outer tube 1 in the opening 7 of the wall surface. 8 is a washer, 9 is a nut, and 10 is a packing.

In the above configuration, the heat insulating adapter 6 is inserted into the opening 7, and then the nozzle outer tube 1 is inserted into the heat insulating adapter 6,
The washer 8 is fitted onto the nozzle outer tube 1 and the nut 9 is screwed to fix the nozzle outer tube 1 to the wall surface. Then, the back cover 3 is sandwiched and the nozzle inner tube 2 is screwed into the nozzle outer tube 1, and the back cover 3
The exterior cover 5 is externally fitted to the above, and the steam ejector is attached to the wall surface by the above procedure.

(Problems to be solved by the invention) By the way, in the above configuration, the nozzle outer pipe 1, the nozzle inner pipe 2, and the back cover 3 are in a high temperature state because high-temperature steam flows, and the heat from the member to the wall surface is generated. It is necessary to prevent the wall surface from becoming hot due to conduction. In that respect, in the above configuration, the heat insulating space A is formed between the back cover 3 and the wall surface,
Further, a heat insulating space B is formed between the end surface of the opening 7 and the nozzle outer tube 1, especially around the outer circumference of the heat insulating adapter 6, and the heat conduction to the wall surface is eased by the presence of the heat insulating spaces A and B. Since a heat insulating space is not formed between the flange portion 1a of the outer tube 1 and the wall surface, heat transfer from such a portion causes the wall surface to have a high temperature, and the heat insulating space B has one flange portion 6a and the other washer 8
Since it is blocked by, there is no outside air coming in or out, the temperature rises over time, and the heat insulating effect of the heat insulating space B is impaired.
As a result, the above-mentioned structure cannot be expected to have a satisfactory effect in preventing deterioration of the wall surface due to heat.

(Means for Solving the Problem) The present invention is intended to solve the above-described problems of the conventional example. Therefore, in the present invention, the collar portion is inserted into the opening formed in the wall surface and is attached to the proximal end side. Also, an adapter having an axially extending wall portion projecting therefrom, and a steam introducing pipe having a flange portion projecting at the base end side, which is inserted into the adapter and abuts against the end face of the extending wall portion, and a steam carrying pipe is connected to the tip portion. And a fixture for fixing the flange portion and the flange portion of the adapter to the wall surface through a bush attached to the flange portion of the steam introduction pipe, and a back cover and a back cover that are attached in communication with the steam introduction pipe, together with the flow of steam. An outer cover provided with a steam outlet forming a space is provided, and an outer diameter of a base end side of at least one of the adapter and the steam introduction pipe is larger than a front end side thereof.

(Operation) In the above configuration, a heat insulating space is formed between the steam introducing pipe that is in a high temperature state and the opening end face formed on the wall surface outside at least one end of the adapter and the steam introducing pipe. Since the tip side of the space is open, a sufficient heat insulating effect is produced. Also, since a heat insulating space is formed between the flange of the steam inlet pipe and the flange of the adapter, the amount of heat transferred from the flange of the steam inlet pipe to the wall surface around the opening is poor, and moreover, to the wall surface through the fixture. The heat transfer of the wall surface is also reduced by interposing the bush, and as a result, deterioration of the wall surface due to the high temperature can be prevented.

(Embodiment) An embodiment of the present invention will be specifically described below with reference to FIGS. 1 and 2.

Reference numeral 11 denotes a wall surface of the sauna room, and an opening 12 is formed at a predetermined position of the wall surface 11. Reference numeral 13 denotes an adapter molded of heat-resistant synthetic resin. The adapter 13 has a cylindrical shape with both ends opened, and has a flange portion 13a and an axially extending wall portion 13 on the base end side.
b is projected integrally, and the outer diameter of the tip end side of the insertion portion L inserted into the opening 12 is reduced as compared with the base end portion. 14
Is a brass steam introducing pipe, and has a flange portion 14a integrally projecting on the base end side, and the outer diameter on the tip end side thereof is reduced as compared with the base end portion of the insertion portion 1 into the adapter 13. There is. 1
Reference numeral 5 is a packing, 16 is an annular bush made of heat-resistant synthetic resin, and a tubular portion 16a integrally formed with the bush 16 is fitted into an opening provided in the collar portion 14a of the steam introducing pipe 14. Reference numeral 17 is a fixture made of wood screws. Reference numeral 18 denotes a steam pipe inserted into the steam introduction pipe 14 from the base end side, and the steam introduction pipe 14 and the steam pipe 18 are sealed by an O-ring 19. 20 is a back cover and 21 is an exterior cover. A vapor flow space 22 is formed between the covers 20 and 21,
Slit-shaped steam outlets 23 are opened on both sides of the exterior cover 21 except for a portion of the steam pipe 18 facing the steam outlet 18a. The outer cover 21 surrounds the peripheral wall portion 2
1a is formed, and a plurality of ventilation openings 21b are provided at the tip of the peripheral wall portion 21a. 24 is a spacer, 2
5 is a washer.

In the above configuration, the procedure for attaching the steam ejector will be described. First, the tip of the adapter 13 is inserted into the opening 12, and the flange portion 13 a is brought into contact with the indoor surface of the wall surface 11 via the packing 15. Next, the steam introducing pipe 14 is inserted into the adapter 13 and pushed in until the flange portion 14a comes into contact with the extension wall portion 13b, the bush 16 is fitted to the flange portion 14a, and the adapter 13 and the steam introducing pipe 14 are fixed by the fixture 17. Fix on the wall 11. Then, the steam pipe 18, the back cover 20, the outer cover 21, and the spacer 24 are previously attached and integrated, the steam pipe 18 is inserted into the steam introducing pipe 14, and the outer peripheral portion of the outer cover 21 is fitted with a washer 25. It is sandwiched and fixed to the wall surface 11 with a fixture 17, and a steam carrying pipe 26 connected to a steam generator is connected to the tip of the steam introducing pipe 14.

The steam flows through the steam introduction pipe 14 and the steam pipe 18 into the flow space 2
2 and flows out into the room from a slit-shaped ejection port 23 provided in the exterior cover 21. Due to such flow of steam, the temperature of the steam introducing pipe 14 becomes particularly high, and since it is made of metal because it is connected to the steam carrying pipe at the tip side, heat transfer to the surroundings is remarkable. However, in the above configuration, the heat insulating adapter 13 is interposed between the wall surface 11 and the steam introduction pipe 14, and the opening 1 formed in the wall surface 11
A gap 26 is provided between the end face 2 and the adapter 13.
A space 27 is also formed between the steam introduction pipe 14 and the steam introduction pipe 14, and the gaps 26, 27 are effective heat insulating spaces because the tips are open, and the heat insulating action of the adapter 13 is also added to the steam introduction pipe 14. The amount of heat transfer from 14 to the wall surface 11 is reduced as much as possible. A gap 28 is also formed between the flange portion 14a of the steam introducing pipe 14 and the flange portion 13a of the adapter 13, and the fixture 17 is fixed to the wall surface 11 via the bush 16, so that the steam introducing pipe 14 The amount of heat transferred from the collar portion 14a to the wall surface 11 is also very small.

(Effects of the Invention) As described above, according to the steam ejector of the present invention,
Since heat conduction from the steam introduction path to the mounting wall surface is weakened by interposing the heat insulating space, the wall material can be protected from thermal deterioration for a long period of time.

Further, in the steam ejector of the present invention, all the constituent members can be attached and detached from the indoor side, and since no special device is required for the attachment work to form the heat insulating space, the workability is extremely easy. .

[Brief description of drawings]

FIG. 1 is a transverse sectional view showing an embodiment of the present invention, FIG. 2 is a front view of the same embodiment, and FIG. 3 is a longitudinal sectional view showing a conventional example. 12 ... Opening 13 ... Adapter 13a ... Collar part 13b ... Extension wall part 14 ... Steam introduction pipe 14a ... Collar part 16 ... Bushing 20 ... Back cover 21 ...・ Exterior cover 22 ・ ・ ・ Flowing space 23 ・ ・ ・ Spout

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) Bibliography Flat 2-86529 (JP, U) Flat 2-82339 (JP, U) Flat 63-197486 (JP, U)

Claims (1)

[Scope of utility model registration request] 1. A steam ejector which is attached to a side wall of a sauna room and ejects steam supplied from a steam carrier pipe into the sauna room. The steam ejector is inserted into an opening formed in a wall surface, and a collar portion and a shaft are provided on a base end side. An adapter with an extended wall extending in the direction
Through the steam introducing pipe connecting the steam conveying pipe to the tip end, and the bush attached to the collar part of the steam introducing pipe, which is inserted in the adapter and abuts against the end face of the extension wall A fixture for fixing the collar portion and the collar portion of the adapter to the wall surface, a back cover communicating with the steam introduction pipe and an outer cover provided with the back cover and a steam outlet for forming a steam flow space. A steam ejector, comprising: an outer diameter of a base end side of an insertion portion of at least one of the adapter and the steam introduction pipe is larger than a front end side thereof.