CN201171922Y

CN201171922Y - Welding flux recovery device

Info

Publication number: CN201171922Y
Application number: CNU2008200922748U
Authority: CN
Inventors: 江留学; 刘光辉
Original assignee: SUNEAST ELECTRONIC TECHNOLOGY (SHENZHEN) Co Ltd
Current assignee: SUNEAST ELECTRONIC TECHNOLOGY (SHENZHEN) Co Ltd
Priority date: 2008-02-03
Filing date: 2008-02-03
Publication date: 2008-12-31
Anticipated expiration: 2018-02-03

Abstract

The utility model discloses a soldering-flux reclaiming device, comprising a motor and a centrifugal-type fan and further comprising an air inlet channel, wherein a filtrating net and a condenser are arranged in the air inlet channel, the top end of the centrifugal-type fan is communicated with the air inlet channel. The soldering-flux reclaiming device has the advantages of high reclaiming efficiency, reasonable structure and convenient maintaining and cleaning process.

Description

A kind of scaling powder retracting device

Technical field

The utility model relates to the scaling powder retracting device, relates in particular to a kind of retracting device of the scaling powder that produces when being used to handle and reclaim reflow welding equipment welding wiring board.

Background technology

The structure that existing scaling powder retracting device generally adopts is: be made up of screen pack, wind opinion, motor and heat exchanger.Under this structure, the high temperature gas flow that has scaling powder filters and heat exchanger by screen pack, and high temperature gas flow fully contacts with heat exchanger and forces cooling, the high temperature gas flow that will have scaling powder turns cold, cool off that later scaling powder partly sticks on screen pack and the heat exchanger or part drip, so screen pack and heat exchanger want periodic maintenance to maintain.Sometimes the recovering effect that this structure can cause scaling powder is not obvious and safeguard inconvenient, for example, its structure is for to keep flat heat exchanger and screen pack stacked, can cause scaling powder to be deposited in heat exchanger and above the screen pack, very fast heat exchanger loses its due heat exchange action, the wind-warm syndrome degree of producing by boasting is higher, can not well play cooling effect, also can influence the smooth and easy of air-flow, and scaling powder a large amount of be deposited on each surface in the cooling zone, clean inconvenience very.So the installation of heat exchanger and screen pack and fixed form, the cleaning method of scaling powder recovery area, the difference of high temperature gas flow running, the effect that all can cause scaling powder to reclaim has a great difference.

The utility model content

For addressing the above problem, it is a kind of rational in infrastructure that the purpose of this utility model is to provide, and the scaling powder recovering effect is good, and clean and maintenance scaling powder retracting device easily.

For achieving the above object, the technical solution of the utility model is:

A kind of scaling powder retracting device comprises motor, centrifugal type wind wheel and air intake passage, is provided with screen pack and condenser in the air intake passage, and the centrifugal type wind wheel top communicates with air intake passage.

Described air intake passage is positioned at casing, has air inlet on the casing, and air inlet is communicated with air intake passage.

Described scaling powder retracting device also comprises stretcher and catch tray, stretcher and catch tray be positioned at casing and with casing between cooperate for drawer type.

Described casing has cabinet door.

Described centrifugal type wind wheel circumferencial direction side communicates with the air-out passage, and the air-out channel end is an air outlet.

Described screen pack is 3, and described condenser is 2, and screen pack and condenser are separately and parallel.

Described condenser is a water cooled condenser.

Described screen pack and condenser are inserted in the casing from casing one side.

Cooperate for drawer type between described screen pack and condenser and casing.

Described motor is installed on the installing plate, is provided with cushion blocking between motor and its installing plate.

Cooperate for drawer type between the heat exchanger of scaling powder retracting device described in the utility model, screen pack and catch tray and casing, only need heat exchanger, screen pack to be put into gently and played tensioning with tensioning, allow air-flow from heat exchanger and screen pack, pass through fully, can to greatest extent scaling powder and other harmful substance be reclaimed, the organic efficiency height has better environmental-protection function; With above structural module, make its maintenance and easy to clean; The cooling gateway of heat exchanger all connects with snap joint, and this will improve maintenance efficiency greatly; Motor, centrifugal type wind wheel and motor mount plate constitute an assembly, also can wholely insert or extract, and maintain easily.

Description of drawings

Fig. 1 is the utility model scaling powder retracting device structural representation;

Fig. 2 is the another kind of scaling powder retracting device of a utility model three-dimensional exploded view;

Fig. 3 is the utility model motor centrifugal type wind wheel modular construction schematic diagram;

Fig. 4 is the utility model drawer type heat converter structure schematic diagram;

Fig. 5 is the utility model drawer type stretcher structural representation;

Fig. 6 is the utility model scaling powder retracting device gas circulation schematic diagram.

The primary clustering symbol description

1, motor 2, cushion blocking 3, installing plate 4, centrifugal type wind wheel

5, casing 51, cabinet door 52, air inlet 53, air outlet

6,8,10, water-cooled screen pack

7,11, drawer type condenser 9, stretcher 12, catch tray

13, cold wind plenum chamber 14, the second filter freezing district 15, second condensing zone

16, the first filter freezing district 17, first condensing zone 18, hot blast filtering area

The specific embodiment

See also Fig. 1, Fig. 3 to Fig. 5, a kind of scaling powder retracting device comprises motor 1, centrifugal type wind wheel 4, air intake passage, stretcher 9 and catch tray 12, and motor 1 is installed on the installing plate 3, is provided with cushion blocking 2 between motor and its installing plate; Be provided with 6,8,10 and 2

condensers

7,11 of 3 water-cooled screen packs in the air intake passage, screen pack and water cooled condenser are separately and be arranged in parallel, cooperate for drawer type between screen pack and water cooled condenser and casing, described air intake passage is positioned at casing 5, the centrifugal type wind wheel top communicates with air intake passage, and casing one side has air inlet 52, and air inlet is communicated with air intake passage, communicate with the air-out passage around the centrifugal type wind wheel side, the air-out channel end is an air outlet 53; Described stretcher 9 is positioned at casing, be arranged in parallel with screen pack and water cooled condenser, and with cooperate for drawer type between casing, stretcher is with drawer

type screen pack

6,8,10,7,11 tensionings of drawer type condenser, gas only can pass through from drawer type screen pack and drawer type condenser, 5 sealings of rotating box goalkeeper casing.Catch tray 12 be positioned at casing and with casing between for drawer type cooperates, be provided with screen pack is vertical with condenser, and be positioned at its below.

Below in conjunction with Fig. 6, scaling powder retracting device operation principle and flow process shown in the embodiment 1 are described.

Air intake passage is divided into: cold wind plenum chamber 13, the second filter freezing district 14, second condensing zone 15, the first filter freezing district 16, first condensing zone 17 and hot blast filtering area 18, wherein be provided with screen pack in the second filter freezing district, the first filter freezing district and the hot blast filtering area, be provided with water cooled condenser in second condensing zone and first condensing zone.

The air circulation principle:

Because driving centrifugal type wind wheel, rotates at a high speed by motor, air throws away at a high speed around centrifugal type wind wheel, thereby make centrifugal type wind wheel form the higher-pressure region all around, be formed centrally low-pressure area in the centrifugal type wind wheel, after being formed centrally low-pressure area in the centrifugal type wind wheel, make that like this air intake passage that communicates with it becomes low-pressure area, it is cold wind plenum chamber 13, the second filter freezing district 14, second condensing zone 15, the first filter freezing district 16, first condensing zone 17, hot blast filtering area 18 becomes low-pressure area in succession, thereby the high temperature air that makes burner hearth contain a large amount of gaseous flux constantly replenishes toward above-mentioned zone from air inlet 52 in a steady stream.

Clean cold air after the heavy filtration of process system is sent from air outlet 53 after throwing away all around from centrifugal type wind wheel, and the clean cold air of high pressure is constantly transmitted in burner hearth by air outlet in a steady stream, passes through above process repeatedly, thereby finishes the cyclic process of air.

Scaling powder reclaims principle:

1) the burner hearth hot-air that contains a large amount of gaseous flux enters the hot blast filtering area: the first impurity that filters the hot-air the inside of containing gaseous flux; 2) enter first condensing zone: the hot-air that contains gaseous flux is through first condensing zone time, water cooled condenser makes high temperature air cool off rapidly, what reach scaling powder changes temperature with fixed attention, scaling powder flows in catch tray in the liquefaction of first condensing zone and along condenser with the form of liquid, thereby reaches the purpose that scaling powder reclaims; 3) enter the first filter freezing district: after reclaiming through condensation for the first time, still contain gaseous flux and other impurity in the air, through this district the time, impurity has obtained filtration, gaseous flux further flows in along screen pack toward catch tray with the form of liquid in this zone liquefaction, makes scaling powder obtain further recovery; 4) enter second condensing zone: principle with to enter first condensing zone identical); 5) enter the second filter freezing district: principle with to enter the first filter freezing district identical); 6) enter the cold wind plenum chamber; 7) cold air that blows clean in the burner hearth by centrifugal type wind wheel.

See also Fig. 2, relative position between the water cooled condenser in the scaling powder retracting device casing, drawer type screen pack and stretcher can change, and it specifically puts in order and is water cooled condenser 7-drawer type screen pack 6-water cooled condenser 11-drawer type screen pack 8-stretcher 9-drawer type screen pack 10; Cabinet door 51 is with casing 5 sealings.Catch tray 12 is positioned at casing, is provided with screen pack is vertical with condenser, and is positioned at its below.

Claims

1. a scaling powder retracting device comprises motor and centrifugal type wind wheel, it is characterized in that: also comprise air intake passage, be provided with screen pack and condenser in the air intake passage, the centrifugal type wind wheel top communicates with air intake passage.

2. a kind of scaling powder retracting device according to claim 1, it is characterized in that: described air intake passage is positioned at casing, has air inlet on the casing, and air inlet is communicated with air intake passage.

3. a kind of scaling powder retracting device according to claim 2, it is characterized in that: it also comprises stretcher and catch tray, stretcher and catch tray be positioned at casing and with casing between cooperate for drawer type.

4. a kind of scaling powder retracting device according to claim 2, it is characterized in that: described casing has cabinet door.

5. a kind of scaling powder retracting device according to claim 1 is characterized in that: described centrifugal type wind wheel circumferencial direction side communicates with the air-out passage, and the air-out channel end is an air outlet.

6. a kind of scaling powder retracting device according to claim 1 is characterized in that: described screen pack is 3, and described condenser is 2, and screen pack and condenser are separately and parallel.

7. according to claim 1 or 6 described a kind of scaling powder retracting devices, it is characterized in that: described condenser is a water cooled condenser.

8. according to claim 1 or 6 described a kind of scaling powder retracting devices, it is characterized in that: described screen pack and condenser are inserted in the casing from casing one side.

9. according to claim 1 or 6 described a kind of scaling powder retracting devices, it is characterized in that: cooperate for drawer type between described screen pack and condenser and casing.

10. a kind of scaling powder retracting device according to claim 1, it is characterized in that: described motor is installed on the installing plate, is provided with cushion blocking between motor and its installing plate.