Textiles: fluid treating apparatus – Machines – With gas – steam or mist treating
Patent
1990-01-29
1991-05-28
Coe, Philip R.
Textiles: fluid treating apparatus
Machines
With gas, steam or mist treating
34216, 68 5E, 223 51, D06F 6106
Patent
active
050183710
DESCRIPTION:
BRIEF SUMMARY
The invention relates to a tunnel finisher.
A tunnel finisher of this kind is disclosed in the DE-PS No. 35 19 568. This tunnel finisher comprises a steam chamber separated from a finishing chamber by air drums. An exhaust chamber passes off from the ceiling of the steam chamber.
It is the object of the invention to provide a tunnel finisher of the above described kind which is particularly compact in size and has a low steam consumption.
The conventional separation between the steam chamber and the usual finishing chamber by means of the air drums can be omitted by exhausting the steam in the same direction as the air stream in the finishing chamber, i.e. downwards, and thereafter passing the same together with the air stream to an exit.
Hence, the air stream in the finishing chamber forms virtually a bulk head and prevents the steam from entering into the finishing chamber. The steam is then removed in concentrated form already in the first circulating cycle through the exit to a great extent. When the steam is conventionally exhausted upwardly into a separate exit chamber, the steam having a natural upwardly rising tendency which is supported by the suction will cause a swirl opposite to the direction of the air stream and will additionally suck air from the finshing chamber.
There is the following further advantage of the downward steam exhaust which again has a positive effect on the steam consumption: a kind of rubber band effect is created. The exiting steam strives upwardly, but is simultaneously pulled downwardly. Thereby a uniform distribution over all finishing goods is achieved. In the reversed situation considerably more steam must be used in order to provide sufficient supply to the lower parts, even by means of additional nozzles on the floor.
Further features and advantages of the invention will be apparent from the description of an embodiment with reference to the drawings. In the drawings:
FIG. 1 is a lateral view of a tunnel finisher having the front plate removed;
FIG. 2 is a sectional view along line II--II in FIG. 1 or FIG. 3, resp., of the tunnel finisher shown in FIG. 1 with partly removed cover;
FIG. 3 is a top view of the tunnel finisher;
FIG. 4 is an enlarged representation of the bottom end of an air drum and of the associated air supply channel according to the circle IV in FIG. 1;
FIG. 5 is a top view showing a detail of the air entrance side of the air drums;
FIG. 6 is a lateral view of a further embodiment of a tunnel finisher;
FIG. 7 is a top view of the tunnel finisher shown in FIG. 6.
The tunnel finisher comprises a housing 1 with an entrance 2 and an exit 3. The entrance 2 is closed by means of an inlet side pair of air drums 4, 5 and the exit is closed by means of an outlet side pair of air drums 6, 7 in such a manner that a garment to be treated may be passed therethrough, but steam is prevented from exiting outwardly from the interior of the chamber.
The interior of the chamber consists of a first portion, the steam chamber 8, at the entrance side and a subsequent outlet side portion, the circulation chamber 9. A steam nozzle arrangement 10 extending along the total height of the chamber is provided at the inner side of the inlet air drums and in a small distance therefrom. Steam can be supplied into the interior of the steam chamber through the steam nozzle arrangement.
As may be best seen from the FIGS. 1 and 2, the circulation chamber 9 has the bottom end thereof connected to a recirculation channel 11 which leads to the suction side of a circulation arrangement 12. The circulation arrangement 12 which is driven by a drive motor 16 has the outlet thereof connected with the upper side of the circulation chamber 9. Additionally a control flap 14 is provided which leads to an exit opening 13 and can be shifted between a closed position and an open position by means of a lift magnet 15 and a lever system connected with the flap. Within the recirculation channel 11 there is a heating installation 17 which is passed by the air to be recirculated and exerts some resistan
REFERENCES:
patent: 2911729 (1959-11-01), Wood
patent: 3765580 (1973-10-01), Wilsker et al.
patent: 4823488 (1989-04-01), Fottner
Brown Donald
Coe Philip R.
Resnick David S.
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