Steam cleaner boiler and steaming-out system
Technical field
The present invention relates to a kind of steam cleaner boiler, and the steaming-out system that uses this boiler.
Background technology
Existing steam cleaner boiler generally is made up of heater block, heat exchanger and the steam generation passage of being close to the heat exchanger surface.The heat that heater block produced is passed to the steam generation passage by heat exchanger, the interior water of steam generation passage is heated becomes steam.The general metallic conduit of making separately that adopts of this steam generation passage.The defective of such steam cleaner boiler is that the contact area between steam generation passage and the heat exchanger is limited, and rate of heat exchange is not high.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of steam cleaner boiler, full contact between its steam generation passage and the heat exchanger, rate of heat exchange height.
For solving the problems of the technologies described above, the invention provides a kind of steam cleaner boiler, comprise shell and be placed in the interior heat exchanger of shell, described shell is provided with water supply connector and steam jet, on the described heat exchanger heater block is installed, the outer surface of described heat exchanger offers groove, and this groove is connected with water supply connector and steam jet on the described shell, and this groove is encapsulated as vapor generating cavity by the inwall of described shell.
Preferably, described groove in the shape of a spiral shape offer around the heat exchanger surface.
Preferably, described heat exchanger inside is provided with the double evaporation-cooling chamber, and described vapor generating cavity is communicated with steam jet by this double evaporation-cooling chamber.
Preferably, described double evaporation-cooling chamber communicates with an end of vapor generating cavity by the connecting hole of offering on the described heat exchanger.
Preferably, described heater block is an electric heating body.
Preferably, offer draw-in groove respectively on the outer wall at described heat exchanger two ends, be embedded with sealing ring on the draw-in groove respectively, to prevent flowing water or the steam leakage in the vapor generating cavity.
The present invention also comprises a kind of steaming-out system, and this steaming-out system comprises aforementioned any steam cleaner boiler.
Compared with prior art, vapor generating cavity of the present invention contacts more abundant with heat exchanger, and the rate of heat exchange of boiler is higher.Simultaneously owing to set up the double evaporation-cooling chamber, can utilize the remaining heat of heat exchanger with in the steam a small amount of fully the aqueous water of vaporization and part regelation vaporize fully, avoided the seepy question of steam cleaner.
Description of drawings
Fig. 1 is the three-dimensional exploded view of the embodiment of steam cleaner boiler of the present invention;
Fig. 2 is the profile of Fig. 1 in the A-A position.
The Reference numeral that is marked in the above accompanying drawing is respectively:
The 1-heat exchanger, 11-water inlet, 12-groove, 13-connecting hole, 14-double evaporation-cooling chamber, 15-electric heating body, 16-draw-in groove, 2-shell, 21-water supply connector, 22-steam jet, 3-sealing ring.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail, but is to be understood that protection scope of the present invention is not subjected to the restriction of the specific embodiment.
As depicted in figs. 1 and 2, this steam cleaner boiler comprises the shell 2 of a tubbiness and the heat exchanger 1 of a tubbiness, and this heat exchanger 1 is socketed on shell 2 inside, and both openings are relative.One side of described shell 2 is provided with water supply connector 21, and the top is provided with steam jet 22.The bottom of described heat exchanger 1 is equipped with electric heating body 15.Offer groove 12 on the outer surface of described heat exchanger 1 in the shape of a spiral shape, this groove 12 constitutes vapor generating cavity with the inwall of shell 2, one end of groove 12 is a water inlet 11, this water inlet 11 communicates with water supply connector 21 on the shell 2, the other end is communicated with the cavity of heat exchanger 1 inside by a connecting hole 13 of offering on the heat exchanger 1, cavity in this heat exchanger is double evaporation-cooling chamber 14, and this double evaporation-cooling chamber 14 is communicated with steam jet 22.
In boiler when work,, water enters in the heat exchanger groove 12 (vapor generating cavity) by water supply connector 21, and the heat that electric heating body 15 produces is passed to vapor generating cavity by heat exchanger 1 and its inner water is heated become steam.A small amount of not water of gasification enters double evaporation-cooling chamber 14 through connecting hole 13 in the steam, and is heated vaporization fully once more after steam nozzle 22 ejections in the shell 2 by the heat in the heat exchanger 1.
Because vapor generating cavity directly is opened on the heat exchanger, being close to heat exchanger with vapor generating cavity used in the prior art compares, vapor generating cavity of the present invention and heat exchanger contact area are bigger, and heat exchange is more abundant, and the rate of heat exchange of boiler is higher.Simultaneously owing to set up the double evaporation-cooling chamber, can utilize the remaining heat of heat exchanger with in the steam a small amount of fully the aqueous water of vaporization and part regelation vaporize fully, avoided the seepy question of steam cleaner.
More than disclosed only be a specific embodiment of the present invention, still, the present invention is not limited thereto, any those skilled in the art can think variation all should fall into protection scope of the present invention.