CN2374814Y

CN2374814Y - Two-way equivalent warm air interchanger

Info

Publication number: CN2374814Y
Application number: CN 99226495
Authority: CN
Inventors: 柴岩芝
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-04-30
Filing date: 1999-04-30
Publication date: 2000-04-19
Anticipated expiration: 2009-04-30

Abstract

The utility model relates to a two-way equivalent warm air interchanger, which is composed of a volute casing, impellers, a box body, etc. The impeller and blades are in positive and reversal cross arrangement to form a lambdoid shape; the volute casing adopts a coaxial bidirectional volute casing, and the inside of a cold and warm air duct connected with the volute casing is provided with heating elements such as heating wires, etc.; thus, the utility model has the advantages that the structure is reasonable, the positive and the reversal wind pressure and wind speed are comparatively high and are equal, the wind resistance is little, the heat efficiency is comparatively high, the cost is comparatively low, the appearance is beautiful, etc. The utility model is particularly suitable for heating in a household bathroom, etc.

Description

Two-way equivalent warm braw rebreather

The utility model relates to a kind of steam air heater, especially relates to a kind of forward and reverse equal two-way equivalent warm braw rebreather that can produce equal efficient.

Existing warm-air drier polyphyly is provided with electrical heating elements such as ceramic heating element at the air outlet place of blower fan, and it is bigger to make it windage, and the thermal efficiency that produces warm braw is not high, and the feature that decays in time of its power in addition can not satisfy user's actual needs.Because of the outlet wind-force deficiency of warm-air drier, be difficult to form room air systemic circulation up and down simultaneously, cause warm cool down discomfort etc. to the people.The blade of especially existing warm-air drier inner blower impeller all adopts in the same way design equidistantly.Therefore, when the user required switch operation (gas for example changes gear), the inverted running efficient of blower fan obviously descended, so that functions such as the gas that is difficult to realize changing gear.For this reason, in the Modern Family bathroom, both be equiped with steam air heater, the quite a lot of exhaust apparatus such as ventilation fan also had been installed simultaneously.

In addition, the present bathroom warming lamp products such as (being commonly called as super bath) that uses is to adopt the infrared lamp heating, and the structure that ventilating fan is taken a breath exists the bathroom equally and is difficult to the uniform high-efficiency intensification in the space up and down, causes deficiencies such as obviously going up hot cold down.

Goal of the invention of the present utility model is to overcome the deficiencies in the prior art, provides a kind of rational in infrastructure, can two-wayly carry out the warm braw circulation of higher blast and the two-way equivalent warm braw rebreather of the gas that changes gear equivalently.

Another goal of the invention of the present utility model provides a kind of compact conformation, and air-out is even, and the thermal efficiency is higher, is beneficial to the two-way equivalent warm braw rebreather that profile is carried out symmetry, design for aesthetic.

Major scheme of the present utility model is: the blade of described impeller is forward blade and backward vane cross arrangement, and the inboard of two paired blades is continuous, and its cross section is herringbone; Described spiral case is the coaxial two-direction spiral case, and is built-in with electrical heating element in the changes in temperature air channel that is attached thereto.The changes in temperature air channel that is provided with on the described coaxial two-direction spiral case is parallel to each other with the ventilation air channel, and promptly two air channels all communicate with spiral case abreast, and tangent with the outer rim of impeller; Also can on described coaxial two-direction spiral case, be provided with a commutation water conservancy diversion air compartment, be provided with orthogonal commutation inclined-plane and even wind inclined-plane in it, and the changes in temperature air channel that communicates with commutation water conservancy diversion air compartment is perpendicular with the ventilation air channel.

On this basis, a kind of preferable scheme can also be that described changes in temperature air channel can be by lead air channel and add hot-flow flue and form of convergent; The described hot-flow flue that adds is located at a side of rectangular box (being the inboard or the outside of tank wall), and insulating trip that electrical heating element that it is built-in with and air channel are arranged in parallel and even dish heating wire placed on it constitute.

In addition, impeller adjacent blades outer rim gap h is 1 with the ratio of the spacing H of every pair of blade inboard: 1.5-2.5; And the interior outside of blade is the circular arc cylinder; The chord length 1 of blade is 1 with the ratio of its height L: 4-6.

Therefore, the utlity model has rational in infrastructurely, can equate to carry out efficiently forward and reverse ventilation at any time, the blade design is simpler, compact integral structure, cost is lower, and windage is little, and the thermal efficiency is higher, the design model novelty, good looking appearance meets characteristics such as dwelling house decoration design trend, is a kind of to the heat desirable substitute products of electric heating appliance of existing infrared bulb or quartz ampoule illumination warmer (as super bath) and electrothermal tube.

Fig. 1 is the structural representation of a kind of impeller in the utility model;

Fig. 2 is the B-B cutaway view of Fig. 1;

Fig. 3 is with a kind of structural representation of the present utility model;

Fig. 4 is the A-A part sectioned view of Fig. 3.

Below by embodiment, structure of the present utility model is described specifically.

Referring to the impeller 1 of the warm braw rebreather shown in accompanying drawing 1 and the accompanying drawing 2 is to be made of 22 pairs of herringbone blades 5 around the impeller boss 3 of being located at central authorities and the uniform impeller and impeller body therebetween 2.Impeller body 2 central indents, and between impeller body and impeller boss, be provided with cross reinforcement 4.Described blade 5 constitutes by the backward vane 52 of design in the direction of the clock with by the forward blade 51 that counterclockwise designs, and the interior outside of its blade is respectively the circular arc cylinder that radius is 12mm and 13mm.Gap between forward blade 51 adjacent one another are and backward vane 52 outer rims has constituted axial strip gas outlet 53, and its spacing h is advisable with 8mm.All structures of above-mentioned impeller 1 can adopt the ABS material to make with the mold integral injection moulding.

Spiral case 7 can adopt two Archimedes spirals designs, and its central authorities are equipped with motor 6, motor shaft with place the impeller boss 3 of the impeller 1 of spiral case inboard directly to join.On the spiral case 7 in impeller 1 outside, be provided with a commutation water conservancy diversion air compartment 71 and ventilation air channel 72.In commutation water conservancy diversion air compartment 71, be provided with commutation inclined-plane 711 and even wind inclined-plane 712 (referring to accompanying drawing 3 and accompanying drawing 4).The opening surface of spiral case 7 is connected with casing 8, and by being located at the convergent guiding air channel 811 of square casing 8 one side inwalls, air-flow is changed its course and evenly blow at high speed, make air and heater element of being located in it evenly fully contacts through the long and narrow air channel 812 of heating of section.Described electrical heating element 9 by the insulating trip 91 that is arranged in parallel with the air channel and evenly dish heating wire 92 placed on it constitute.

Foursquare casing 8 adopts the polycarbonate plastic injection moulding to make, and centre is fixed with porcelain lamp holder 95 through support 94 in it, which is provided with illuminating lamp 88.At the front end of casing 8, be covered with the face shield 86 of square symmetry design, and rely on extension spring 93 and casing 8 to fix.Illuminating lamp 88 front portions just in time lean out by the hole of face shield 86 central authorities, are provided with lampshade 87 around the hole, are arranged with air grid 85 around it.Blow out vertically downward through the air grid 85 of a side mean wind speed through the warm braw of heating wire heating, lighter warm braw is blown near ground with 8m/s; And enter in the casing 8 in the air grid of the cold air of bathroom (or indoor) by its excess-three side of cover 86, under the effect of the impeller 1 that is rotated counterclockwise, after commutation water conservancy diversion air compartment 71 and 81 heating of changes in temperature air channel, blow out in the air grid 85 by an above-mentioned side again.The direct brute force of warm air that will be lighter is blown near ground, drives the room air systemic circulation thus, and room temperature is evenly raise.

When room air is muddy, press the ventilation switch, make the rotation of motor 1 clockwise direction, make air under the effect of reverse impeller 52, discharge outdoor along the tangential direction of spiral case 7 through ventilation air channel 72.Simultaneously, the air spontaneous current of outdoor cleaning is gone into indoor, can realize the timely replacing of room air effectively, easily.

Claims

1, a kind of two-way equivalent warm braw rebreather, comprise spiral case, place in it by motor-driven receded disk impeller and the casing that links to each other with spiral case, be built-in with heater element, the blade (5) that it is characterized in that described impeller (1) is forward blade (51) and backward vane (52) cross arrangement, and the inboard of two paired blades links to each other, and its cross section is herringbone; Described spiral case (7) is the coaxial two-direction spiral case, and is built-in with electrical heating element (9) in the changes in temperature air channel (81) that is attached thereto.

2, two-way equivalent warm braw rebreather as claimed in claim 1 is characterized in that described coaxial two-direction spiral case (7) is gone up the changes in temperature air channel (81) that is provided with and the air channel (72) of taking a breath is parallel to each other.

3, two-way equivalent warm braw rebreather as claimed in claim 1, it is characterized in that described coaxial two-direction spiral case (7) is provided with a commutation water conservancy diversion air compartment (71), be provided with orthogonal commutation inclined-plane (711) and even wind inclined-plane (712) in it, and the changes in temperature air channel (81) that communicates with commutation water conservancy diversion air compartment is perpendicular with ventilation air channel (72).

4,, it is characterized in that described changes in temperature air channel (81) is by convergent guiding air channel (811) with add hot-flow flue (812) and form as claim 1 or 2 or 3 described two-way equivalent warm braw rebreathers; Describedly add the side that hot-flow flue (812) is located at rectangular box (8), its electrical heating element that is built-in with (9) by the insulating trip (91) that is arranged in parallel with the air channel and evenly dish heating wire (92) placed on it constitute.

5,, it is characterized in that impeller (1) adjacent blades outer rim gap h and the ratio of the spacing H of every pair of blade inboard are 1: 1.5-2.5 as claim 1 or 2 or 3 described two-way equivalent warm braw rebreathers; And the interior outside of blade (5) is the circular arc cylinder; The chord length 1 of blade (5) is 1 with the ratio of its height L: 4-6.

6, must ask 4 described two-way equivalent warm braw rebreathers as power, it is characterized in that the ratio at impeller (1) adjacent blades outer rim gap h and the spacing H of every pair of blade inboard is 1: 1.5-2.5; And the interior outside of blade (5) is the circular arc cylinder; The chord length 1 of blade (5) is 1 with the ratio of its height L: 4-6.