JPS62163762A - Steam generator - Google Patents

Abstract

PURPOSE:To moderate the variations in the pressure of saturated steam in a steam generating chamber by bringing at least a part of a water supply pipe for supplying water into the steam generating chamber having a heater and a steam discharge port into contact with the steam generating chamber. CONSTITUTION:The steam generating chamber 1 having the heater 5 and the steam discharge port 17 is provided to form the steam generator, and at least a part of the steam supply pipe 75 for supplying water into the steam generating chamber 1 is brought into contact with the steam generating chamber 1. Accordingly, when water is supplied into the steam generating chamber 1, the water has been preheated in the supply pipe 75. Consequently, the temp. in the steam generating chamber 1 is not lowered, the pressure of the saturated steam in the steam generating chamber 1 is hardly changed, the discharge pressure of steam is made constant, and the discharge length of steam can be kept constant.

Description

[Detailed description of the invention] 【Technical field】

TECHNICAL FIELD The present invention relates to a steam generating device as a boiler set used in steam facial devices, inhalers, and the like.

[Background technology In a steam generator set of a boiler that generates steam by boiling water, the problem is that the saturated steam pressure in the steam generation chamber of the boiler decreases, and the discharge length of the steam ejected from the nozzle may become short. was occurring. This is because the amount of water extinguished by the steam generation is supplied into the steam generation chamber during steam generation, so that the interior of the steam generation chamber is temporarily cooled. However, if the steam discharge length is short (in the case of steam facial devices or inhalers), the steam may or may not reach the face or oral cavity, which is kept at a certain distance from the nozzle, and the product function may be affected. I was not able to demonstrate my true potential. [Purpose of the invention] The present invention was made in view of the technical fishing gtl mentioned above, and its purpose is to reduce the amount of steam discharged from the nozzle when the saturated vapor pressure within the steam generation chamber fluctuates. The purpose is to keep the discharge length constant. [Disclosure of the invention]

The steam generator of the present invention includes a steam generator chamber 1 having a heater 5 and a steam discharge port 17, in which at least a portion of a water supply pipe 75 that supplies water into the steam generator chamber 1 is used to generate steam. It is characterized by being in contact with the chamber 1. Therefore, even if water is supplied into the steam generation chamber 1, this water will not flow through the supply pipe 75.
Since it is preheated inside the steam generating chamber 1, the temperature inside the steam generating chamber 1 does not drop, the saturated steam pressure inside the steam generating chamber 1 does not change, and the steam discharge pressure is adjusted to be constant. Therefore, the discharge length of the steam can be kept constant.The present invention will be explained below based on an example of a facial beauty device that sprays ionized steam as shown in the figure.First, from the configuration of the facial beauty device. To explain, this includes a housing 3 in which a water tank 2 is installed on all four sides of the upper surface, and an arm 4 attached to a receiver 31 on the outer surface of the housing 3 with a pongee 32 so as to be able to swing up and down. A nozzle 19 for injecting steam is provided at the tip of the arm 4 whose angle can be changed by loosening the arm 4. The steam generating chamber 1 that generates the steam to be injected from the nozzle 19 is located inside the housing 3. Kara leg 35
It is installed in a floating state with a baffle plate 14 inside, and a passage section 14a shown in FIG.
It is partitioned into two rooms that communicate only at , 14b,
Three heaters 5 are provided at the bottom of one chamber.
A water level sensor S1 is installed in the other chamber. This water level sensor S includes a reed switch section S hanging from the top plate of the steam generation chamber 1;
It is a 70-to-switch system consisting of a 70-toe part S and 2 (equipped with a permanent magnet for driving a reed switch), and the exposed part to the steam generation chamber 1 is installed with electrical insulation. It is being This water level sensor Sl detects the initial full water level LH and energizes the heater 5 and the high pressure discharge unit 6. Also, water is supplied by a pump 80. When the water level rises, the amount of water level in the steam generation chamber 1 is small, and the amount is such that steam is generated immediately after heating by the heater 5 is started. Steam obtained by heating the water in the steam generation chamber 1 with the heater 5 flows from the steam outlet 17 provided on the upper wall of the chamber on the side where the heater 5 is disposed, through the conduit 18 and into the nozzle 19. be led to. The steam flowing toward the steam outlet 17 is caused by discharge between the electrodes 60 and 60 of the high-pressure discharge unit 6 installed in the upper part of the steam generation chamber 1 and near the steam outlet 17.
It is ionized. Further, the nozzle 19 is formed so that its jetting direction is perpendicular to the steam passage up to this point, and the rear end thereof protrudes into the steam passage. (hot water balls) are suppressed from blowing out. Water is supplied to the steam generation chamber 1 from the water tank 2, and the water tank 2, which is detachable from the housing 3, has a built-in valve that is always biased in the closing direction by a spring. It is equipped with a cap 21 and supplies water to the steam generation chamber 1 through a supply chamber 7 formed as a recess on the upper surface of the hashing 3. The upper part of the replenishment chamber 7 is enlarged through Pj and g70, and a pin 71 is provided upright from the bottom, and a reed switch 70- consisting of reed switch parts S21 and 70 and tote part S2□
A water level sensor S2 as a toggle switch is provided, and its bottom surface is connected to the water supply port 15 of the steam generation chamber 1 through a water supply pipe 75. The pin 71 pushes open the valve of the cap 21 of the water tank 2 placed on the top of the supply chamber 7 with the cap 21 facing downward, against the spring bias, and opens the water tank 2.
This is to guide the water inside into the supply chamber 7. The water level in the supply chamber 7 is maintained at the level L1 of the lower surface of the cap 21 facing downward when the water tank 2 is empty. Further, the water level sensor S2 is in a conductive state when the water level in the replenishment chamber 7 is at the above level L, and is cut off when the water level in the replenishment chamber 7 decreases to below the L0 level in the figure. It functions as a water drain sensor. Water supply port 1 of supply room 7 and steam generation room 1
5 through a water supply pipe 75, and the end of the water supply pipe 75 on the water supply port 15 side is brought into contact with the heater 5 on the bottom of the steam generation chamber 1, as shown in FIGS. 1 to 3. ing. Therefore, the temperature of the water in the water tank 2 is low (even though the water is heated while passing through the part of the water supply pipe 75 that contacts the heater 5, and the water supplied from the water supply pipe 75 to the steam generation chamber 1 is heated). Even if the temperature becomes close to the water temperature (100° C.) in the steam generation chamber 1 and water is supplied from the water supply pipe 75 to the steam generation chamber 1, the water temperature in the steam generation chamber 1 is not rapidly cooled and is therefore saturated. The water vapor pressure does not change, and the discharge length of the steam discharged from the nozzle 19 also does not change.In this case, the water supply pipe 75 is heated and the heater 5 is installed to prevent damage, especially when the temperature rises abnormally during dry firing. A self-temperature control heater is used. Moreover, in order to prevent damage to the water supply W75 due to heat, the water supply pipe 75 may be made of a heat-resistant material. In addition, as shown in PtIJ1 diagram and Figure 4,
A heat storage body 101 is provided in a chamber provided with a water supply port 15 and a built-in water level sensor Sl in the steam generation chamber 1.
A flow channel is formed in the heat storage body 101 to connect the water supply port 15, the water level sensor SI, and the passage portions 14a and 14b. The heat storage body 101 has a large heat storage capacity, and is made of, for example, aluminum. Therefore, even if low-temperature water is temporarily supplied from the water supply port 15, this water is heated by the heat storage body 101 before reaching the heater 5, and the heater 5 heats the low-temperature water and turns it into steam. Since there is no need to do this, there is no need for an extremely small amount of steam or a shortening of the length of the steam ejected from the nozzle 19. Turn on the seven power switches located on the front and display the timer time-up time, which is the initial setting of 0 displayed on the iTD.
minute, set this value at an appropriate time using the push button FWD that increases it and the push button REV that decreases it, set the water tank 2 containing water, and then turn on the operation indicator lamp La. Close the star)/stop switch SWs. At this time, if the water level in the steam generation chamber 1 has not reached the water level LL (detected by the water level sensor S), water from the water tank 2 is sent to the steam generation chamber 1 via the supply chamber 7. When the water level in the steam generation chamber 1 reaches a certain level, the heater 5 and the high-pressure discharge unit 6 are energized by the output of the water level sensor S1, and the generation of steam and the ionization of the steam are started. or until the start/stop switch SWs is pressed again, the water level in the steam generation chamber 1 will remain at a nearly constant level depending on the increase or decrease in the water level in the steam generation chamber 1.
Steam generation takes place. The steam heading to the nozzle 19 is ionized by the discharge between the discharge electrodes 60 and 60 so that it is good for the skin and makes makeup adhere better, and then is ejected from one nozzle. Although the steam generator of the present invention operates as described above, the amount of steam from the nozzle 19 may increase or decrease due to fluctuations such as variations in the output of the heater 5, and if the amount of steam fluctuates, the pump 80 may Since the amount of water and the amount of steam do not match, the amount of water sent by the pump 80 may be finely adjusted near the full water level LH as described below. That is,
As shown in FIGS. 6(a) and 6(b), when the water level of the water level sensor S is within the range of the normal full water level, the water flow rate of the pump 80 is Mfi, but the amount of steam generated is The water level is rising, and the water level is higher than L.
When it enters the range of o (+), the water flow rate of the pump 80 decreases to Si to prevent the water level in the steam generation chamber 1 from gradually rising, and conversely, the steam generation amount > the water flow rate. The water level is decreasing, and the water level is lower than L o
When the temperature falls within the (-) range, the amount of water supplied by the pump 80 increases to Li, thereby preventing the water level in the steam generation chamber 1 from gradually decreasing. Due to this action, the length of the steam discharged from the nozzle 19 is constantly finely adjusted so as to reduce variations in the length of the steam discharged from the nozzle 19, thereby improving usability. What is shown in FIGS. 7 to 11 is the other side of the present invention,
The end of the water supply pipe 75 on the water supply port 15 side is brought into contact with the side wall surface of the steam generation chamber 1 as shown in FIGS. 8 and 9. Therefore, the water is in the steam generation chamber 1 of the water supply pipe 75.
After being preheated at the part that comes into contact with the water, it is supplied into the steam generation chamber 1 from the water supply port 15. In addition, in this embodiment, the pump 80 has a constant water supply amount, and the water supply W7
A fixed amount water supply valve 102 is attached to 5. The metered water supply valve 102 has a structure as shown in FIG. 10, and consists of two strips of elastic material 103, such as rubber, whose edges are pasted together to prevent water leakage, and a stainless steel rod or the like is inserted inside. A rust-free rigid spacer 105 is inserted, and the flow rate can be adjusted by pressing the surface of the elastic material 103 with a suppressing piece 104. That is,
In this embodiment, the suppression piece 104 is placed at the normal suppression position M.
', and the pressing position L where the flow path 108 is widened and the weight is increased.
' and a pressing position 't' where the flow path 108 is narrowed to reduce the flow rate. Therefore, in the first embodiment, the same operation as adjusting the amount of water supplied by the pump 80 is performed by the metered water supply valve 102, and as shown in Pt511 diagrams (a) and (b), the water level sensor S, When the water level is within the normal full water level, the pressure piece 104 of the metered water supply valve 102 is at the M' position, but the water level rises due to the amount of steam generated and the amount of water supplied, and the water level rises to a level higher than Ll. When entering the range of level L o (+), the suppression piece 104 moves to the S' position to prevent the water level in the steam generation chamber 1 from gradually rising.
On the other hand, when the water level decreases as the amount of steam generated is greater than the amount of water conveyed, and the water level falls within the range of the lower water level LH(), the pressure piece 104 rises to the L' position and the water level in the steam generation chamber 1 gradually decreases. This prevents it from declining.

【Effect of the invention】

In the present invention, as described above, at least a part of the water supply pipe that supplies water into the steam generation chamber is brought into contact with the steam generation chamber, so that even if water is supplied into the steam generation chamber, this water is preheated within the supply pipe. The temperature inside the steam generation chamber does not drop, the saturated vapor pressure inside the steam generation chamber does not change easily, and the steam discharge pressure is adjusted to be constant, so the steam discharge length can be kept constant. It has the advantage of being able to

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view showing one embodiment of the present invention, FIGS. 2 and 3 are sectional views and partially broken bottom views showing the piping structure of the water supply pipe to the steam generation chamber, and FIG. The figure is a horizontal sectional view showing the inside of the steam generation chamber as above, FIG. 5 is an external perspective view of the steam generator as above, FIGS. FIG. 7 is a longitudinal sectional view showing the other side of the present invention, FIGS. 8 and 9 are sectional views and partially broken side views showing the piping structure of the same water supply pipe to the steam generation chamber, and FIG. 10 is a partially broken side view. A cross-sectional view of the same quantitative water supply valve as above, and Fig. 11(a) and (b) are time charts showing the method of adjusting the water supply amount in the same case, and 1 is a steam generation chamber;
5 is a heater, 17 is a steam outlet, and 75 is a water supply pipe. Agent Patent Attorney Ishi 1) Ai Figure 7 Figure 4 Figure 6 (a) Figure 10 Figure 11 (a)

Claims (3)

[Claims] (1) A steam generator equipped with a steam generation chamber having a heater and a steam discharge port, characterized in that at least a part of a water supply pipe that supplies water into the steam generation chamber is in contact with the steam generation chamber. Steam generator. (2) The steam generator according to claim 1, characterized in that the water supply pipe is brought into contact with an outer wall surface of the steam generation chamber. (3) The steam generating device according to claim 1, characterized in that a heater is provided on the bottom surface of the steam generating chamber, and at least a portion of the water supply pipe is brought into contact with the heater.