JPS6328233Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for generating humidified gas.

Such a humidified gas is necessary, for example, in order to pass a pattern-printed fabric through a high-temperature, high-humidity atmosphere and fix the dye to the fabric. Conventionally, to obtain humidified gas for high-temperature, high-humidity environments, steam obtained from a boiler is used directly, or when high-temperature steam is required, the steam from the boiler is reheated using a superheater. are doing. Such prior art techniques have poor thermal efficiency and high equipment costs. Furthermore, it is difficult to control the temperature of the humidifying gas when the load fluctuates, and in order to perform accurate temperature control, the control device must have a complicated configuration.

SUMMARY OF THE INVENTION An object of the present invention is to provide an improved humidifying gas generating device that has improved thermal efficiency, is simple in construction, and can easily control the temperature of the humidified gas.

FIG. 1 is a sectional view of an embodiment of the present invention.
The housing 1 is constructed by extending an inner wall 3 made of stainless steel or the like onto the inner peripheral surface of a heat insulating material 2. A former mixing burner 5 is mounted on the ceiling 4 of the housing 1. Fuel gas and combustion air are supplied to the original mixing burner 5, and a flame is generated. A viewing window 6 is provided near the burner 5 for viewing the combustion state from the outside. An outlet pipe 7 for discharging humidified gas is attached to the midsection of the housing 1.

The combustion tube 8 surrounding the flame of the burner 5 is connected to the ceiling 4
hanging from. A right cylindrical heat insulating layer 9 is provided on the outer periphery of the combustion tube 8 . The combustion tube 8 has a right cylindrical shape, and its lower part 10 has a shape cut by a plane inclined with respect to the axis of the combustion tube 8. This lower part 10 extends downward on the outlet pipe 7 side, and is connected to the outlet. The further away from the pipe line 7, the higher the position. This makes it possible to prevent a so-called short pass in which the flame and exhaust gas from the burner 5 directly flow out into the outlet pipe 7. An annular nozzle pipe 11 is arranged at the top of the combustion tube 8 . A large number of nozzle holes 12 facing the outer peripheral surface of the combustion tube 8 are formed in the nozzle pipe 11 at intervals in the circumferential direction. Water is supplied to the nozzle pipe 11 from a conduit 13. A nozzle 14 is provided on the axis of the combustion tube 8 and within the lower portion 10 thereof. Water is supplied to this nozzle 14 via a conduit 15. A nozzle hole for injecting water is formed in the nozzle 14 as indicated by reference numeral 16 diagonally upward. The nozzle hole formed in the nozzle 14 may be formed to inject water in a direction other than the direction indicated by reference numeral 16.

At the bottom of the housing 1, there is a reservoir 18 for water 17.
is formed. A water supply port 19 is provided above this storage portion 18 . Further, a suction port 20 is provided at the lower part of the storage section 18 . A drain port 22 is provided in the bottom 21 of the housing 1 . Storage section 18
is provided with a water level gauge 23 for externally detecting the amount of water 17 stored.

FIG. 2 is a system diagram of the humidifying gas generator shown in FIG. 1. The fuel gas is led from the line 25 and the combustion air is led from the line 28 to the mixer 29 by the fan 26 and mixed therein, and this mixed gas is supplied to the burner 5. The water 17 in the storage section 18 is sucked from the suction port 20 by the pump 30, and the water 17 is
1, is supplied to the nozzle pipe 11 from the pipe line 13 via the flow control valve 32. Water from this pump 30 is also supplied to the nozzle 14 from a pipe line 33 through a pipe line 15. Humidifying gas is supplied to the outside from the outlet pipe line 7. The flow rate of the humidifying gas from the outlet pipe 7 is measured by a flowmeter 34, and the temperature of the humidifying gas is measured by a thermometer 35.

When the burner 5 is in operation, water injected from the nozzle hole 12 of the nozzle pipe 11 flows down along the outer peripheral surface of the combustion tube 8 and falls from the lower part of the combustion tube 8 in the form of a film. The flame and exhaust gas of the burner 5 heat this film-like water and evaporate it. The flame and exhaust gas of the burner 5 also evaporate the water injected from the nozzle 14. The humidified gas thus obtained has a temperature of, for example, 100 to 300°C, and is supplied to the outside from the outlet pipe 7 as described above. The remaining water that has fallen without being evaporated is stored in the storage section 18, sucked through the suction port 20 by the pump 30, and used for evaporation again.

By changing the flow rate of the circulating water 17 in the storage section 18 by the pump 30, the temperature of the humidifying gas supplied from the outlet pipe 7 can be adjusted to line l1, line l1, in FIG.
It can be changed like l2. In this way, it is possible to control the temperature of the humidifying gas.

Circulating the water in the reservoir 18 by the pump 30,
Although the thermal efficiency can be improved by this, as another embodiment of the present invention, water may be supplied to the nozzle pipe 11 and the nozzle 14 without circulating the water in the reservoir 18.

Of course, other liquids may be used instead of water.

FIG. 4 is a sectional view of another embodiment of the present invention. This embodiment is similar to the previous embodiment, and corresponding parts are provided with the same reference numerals. It should be noted that the housing 1 is partitioned by a partition wall 40. Water 17 is stored in a storage section 18 formed at the bottom of the housing 1 . This storage section 18
communicates with a storage section 42 in another room through a communication hole 41 formed in the lower part of the partition wall 40. An outlet hole 43 is formed in the partition wall 40 slightly above the lower part 10 of the combustion tube 8 .
A space 44 in which the burner hole in the housing 1 is installed, which is thus partitioned by the partition wall 40;
It communicates with another space 45. The space 45 is provided with a mesh-like or porous air-permeable filling 46 such as a Raschig ring above the reservoir 42 . Above this filling 46 is a nozzle 47.
is placed. Water from the pump 30 is supplied to a nozzle 47 through a conduit 48, and the water is injected onto the filling 46. The humidified gas from the outlet hole 43 is thus further humidified by passing through the filling 46 which has been wetted by water from the nozzle 47. This humidified gas passes through the demister 50 from an outlet hole 49 formed in the upper part of the space 45 and is discharged from the outlet pipe 7. In the embodiment shown in FIG. 4, a large amount of humidifying gas can be generated.

As described above, according to the present invention, film-like and mist-like liquids are evaporated using the burner flame and exhaust gas, so that thermal efficiency is improved and
The configuration of the equipment is simple, and the temperature of the humidifying gas can be adjusted depending on the flow rate of the film and mist liquid.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional view of one embodiment of the present invention, Fig. 2 is a systematic diagram of the embodiment, Fig. 3 is a graph showing the experimental results of the inventor, and Fig. 4 is another embodiment of the present invention. FIG. 1...Housing, 5...Original mixing burner, 7...
... Outlet pipe line, 8 ... Combustion cylinder, 9 ... Heat insulation layer, 11
... Nozzle pipe, 14,47 ... Nozzle, 18,4
2...Reservoir.

Claims (1)

[Claims for Utility Model Registration] A humidifying gas generating device comprising: a burner; and means for forming a liquid film near the flame of the burner and spraying the liquid.