CN201335528Y

CN201335528Y - Industrial air heater

Info

Publication number: CN201335528Y
Application number: CNU2008202054059U
Authority: CN
Inventors: 庄礼青; 巫爱华; 王本第; 刘强
Original assignee: Foxlink Electronics Dongguan Co Ltd; Cheng Uei Precision Industry Co Ltd
Current assignee: Foxlink Electronics Dongguan Co Ltd; Cheng Uei Precision Industry Co Ltd
Priority date: 2008-12-12
Filing date: 2008-12-12
Publication date: 2009-10-28
Anticipated expiration: 2018-12-12

Abstract

The utility model discloses an industrial air heater which comprises a cabinet, a blowing device, an outlet air pipe and a heating member, wherein the cabinet comprises a fixed plate and a ventilation port formed on the fixed plate; the blowing device comprises a housing, a motor fixed on the housing and an impeller; the outer profile of the housing is approximately Archimedean spiral-shaped and the housing has an air intake port, a shaft hole and an air-collecting pipe; the motor has a driving shaft; the impeller comprises a basal disc, a basal ring and a plurality of vanes; the basal disc is fixed on the driving shaft; the vanes are fixed between the basal disc and the basal ring in an oblique radial arrangement with respect to the center of the basal disc; all the vanes are arranged along the circumferential direction and tilt directions of all the vanes are the same; the outlet air pipe is fixed on the cabinet and the cavity of the air-collecting pipe is communicated with the cavity of the outlet air pipe through the ventilation port of the cabinet; and the heating member is fixed inside the outlet air pipe. The industrial air heater has the advantages of high blowing capacity, stable working performance, long service life of the heating member and low use cost.

Description

The industry air-heater

Technical field

The utility model relates to a kind of air-heater, particularly relates to a kind of industrial air-heater.

Background technology

The air-supply arrangement of existing industrial air-heater is to drive the axialmode fan air-supply by d.c. motor, and the wind of sending forms hot blast through heat generating member heating back again and is sent.

Yet above-mentioned existing industrial air-heater directly drives the wind that the axialmode fan sends by d.c. motor, and not only air quantity is little, and forms eddy current easily, thereby causes its service behaviour instability, and heat generating member damages easily, the use cost height.

The utility model content

The purpose of this utility model is exactly defective and the deficiency that exists at above-mentioned prior art, provides a kind of air quantity big and stable work in work, can prolong the life-span of heat generating member, reduces the industrial air-heater of use cost.

For achieving the above object, industrial air-heater provided by the utility model comprises a casing, an air-supply arrangement, a discharge pipe and a heat generating member.This casing comprises a fixed head, offers a ventilating opening on this fixed head.This air-supply arrangement comprises that a casing, an impeller and are fixed in the motor on the casing.Casing is fixed on the fixed head of casing, and the outer contour of casing roughly is the Archimedes spiral shape, and place, the both sides of this casing has an air inlet and an axis hole respectively, and casing also has a duct set that extends along the tangent line of Archimedes spiral end; Motor has a line shaft, and this line shaft stretches in the casing from axis hole; Described impeller is arranged in the casing, this impeller comprises a basal disc, a basic ring and some blades, basal disc is fixed on the line shaft, and the center of vanes fixed also relative basal disc between basal disc and basic ring is the radial of inclination, and all blades are along the circumferential direction arranged and the incline direction unanimity.Discharge pipe is fixed on the casing, and the tube chamber of described duct set communicates with the tube chamber of discharge pipe by the ventilating opening of casing.One heat generating member is fixed in the discharge pipe.

As mentioned above, in the utility model industry air-heater, the center of the relative basal disc of some blades of the impeller of air-supply arrangement is the radial arrangement of inclination, the outer contour of casing roughly is the Archimedes spiral shape, thereby utility model industry air-heater, big and the stable work in work of air quantity can prolong life-span of heat generating member, reduces use cost.

Description of drawings

Fig. 1 is the stereogram of the utility model industry air-heater, is clearer show internal structure, has removed the part-structure of its casing among the figure.

Fig. 2 is the stereogram of industrial air-heater air-supply arrangement shown in Figure 1.

Fig. 3 is the stereogram of the impeller of air-supply arrangement shown in Figure 2.

Each description of reference numerals is as follows among the figure:

Casing 10 fixed heads 11

Substrate 12 air-supply arrangements 20

Casing 21 air inlets 211

Duct set 212 stators 213

Impeller 22 blades 221

Basal disc 222 basic rings 223

Axle sleeve 224 axle sleeve holes 225

Motor 23

The specific embodiment

By describing technology contents of the present invention, structural feature in detail, realized purpose and effect, give explanation below in conjunction with embodiment and conjunction with figs. are detailed.

See also Fig. 1 to Fig. 3, the utility model industry air-heater comprises casing 10, air-supply arrangement 20, discharge pipe 30 and is arranged at the interior heat generating member (not showing on the figure that this heat generating member can be a heating wire in the present embodiment) of discharge pipe.Casing 10 comprises a fixed head 11, offers a ventilating opening (not shown) on the fixed head 11.Be fixed with a substrate 12 on fixed head 11 outer walls, offer one on the substrate 12 and cross the air port (not shown).

See also Fig. 1 and Fig. 2, air-supply arrangement 20 comprises that a casing 21, places impellers 22 and in the casing 21 to be fixed in motor 23 on the casing 21, and motor 23 has a line shaft (not shown).The outer contour of casing 21 roughly is the Archimedes spiral shape, the place, both sides of this casing 21 has an air inlet 211 and an axis hole (not shown) respectively, casing 21 also has a duct set 212 that roughly extends along the tangent line of Archimedes spiral end, and the line shaft of motor 23 extend in the casing 21 by axis hole.The end of duct set 212 stretches out and is formed with stator 213, and casing 21 is fixed on the fixed head 11 by stator 213.

See also Fig. 3, impeller 22 comprises a basal disc 222, a basic ring 223 and some blades 221, basal disc 222 centers offer a basal disc hole (not shown), the basal disc center is fixed with one and stretches to the axle sleeve 224 of basic ring 223 1 sides, offer an axle sleeve hole 225 on the axle sleeve 224, be fixed in the axle sleeve hole 225 after line shaft one end of motor passes the basal disc hole.Blade 221 is fixed between basal disc 222 and the basic ring 223 and the center of relative basal disc 222 is the radial of inclination, and all blades 221 are along the circumferential direction arranged and the incline direction unanimity.

See also Fig. 1, discharge pipe 30 1 ends have a pedestal 31, and pedestal 31 is fixed on the substrate 12, and the tube chamber of duct set 212 communicates with the tube chamber of discharge pipe 30 by the ventilating opening of casing 10 and the air port of crossing of substrate 12.

As mentioned above, in the utility model industry air-heater, the center of some blades 221 relative basal discs 222 of the impeller 22 of air-supply arrangement 20 is the radial arrangement of inclination, the outer contour of casing 21 roughly is the Archimedes spiral shape, thereby the utility model industry air-heater, big and the stable work in work of air quantity can prolong life-span of heat generating member, reduces use cost.

Claims

1. an industrial air-heater comprises a casing, a discharge pipe, a heat generating member and an air-supply arrangement, and this casing has a fixed head, offers a ventilating opening on the fixed head; Discharge pipe is fixed on the casing; Heat generating member is fixed in the discharge pipe; It is characterized in that: this air-supply arrangement comprises that a casing, an impeller and are fixed in the motor on the casing; Casing is fixed on the fixed head of casing, and the outer contour of casing roughly is the Archimedes spiral shape, and place, the both sides of this casing has an air inlet and an axis hole respectively, and casing also has a duct set that extends along the tangent line of Archimedes spiral end; Motor has a line shaft, and this line shaft stretches in the casing from axis hole; Impeller is arranged in the casing, this impeller comprises a basal disc, a basic ring and some blades, basal disc is fixed on the line shaft, and the center of vanes fixed also relative basal disc between basal disc and basic ring is the radial of inclination, and all blades are along the circumferential direction arranged and the incline direction unanimity.

2. industrial air-heater as claimed in claim 1, it is characterized in that: described basal disc center offers a basal disc hole, the basal disc center is fixed with one and stretches to the axle sleeve of basic ring one side, offers an axle sleeve hole on the axle sleeve, and an end of line shaft passes from the basal disc hole and is fixed in the axle sleeve hole.

3. industrial air-heater as claimed in claim 1, it is characterized in that: described discharge pipe end has a pedestal, be fixed with a substrate on the described fixed head outer wall, offer one on the substrate and cross the air port, discharge pipe is fixed on the substrate by pedestal, and the tube chamber of duct set communicates with the tube chamber of discharge pipe by the ventilating opening of casing and the air port of crossing of substrate.