CN201030372Y - Draft cupboard - Google Patents

Abstract

Disclosed is a draft cupboard (a toxin expelling cupboard) which is suitable for the usage with high-strength under the experimental environment of high temperature and high erosion. A left side board, a left side board, a back board, a top board, a platform, and a water channel of the upper board adopt epoxide resin composite materials for integral shaping, the corner appears round shaped, the effective depth is 720mm, a wind outlet port on the top board forms a ringed backflow groove upward along an internal wall of a wind pipe, and a flow guide board also adopts the integral shaping and has no juncture. When being used, each part is not easy to be eroded or singed, the service life is long, when being cleaned no leakage exists, and all condensation back acids inside canals are collected and handled without flowing back to the draft cupboard.

Description

Vent cabinet

Technical field

The utility model relates to the vent cabinet that use in a kind of laboratory, especially under high temperature, strong corrosive environment, and (as metallurgical laboratory) vent cabinet that high strength is used.

Background technology

At present, the structure of resin that uses on the market or fiberglass vent cabinet is to be spliced by pasting the special plate of anti-shellfish in the five structural glass steel flitch, deflector is by two special plate splicings of thin anti-shellfish, do not return sour gathering system, and effective depth (door made of tempered glass is to the distance of deflector) has only 600MM, table top to adopt real core physics and chemistry plate (phenolic resins) in the vent cabinet.Lower cabinet body is generally used the metallic support timber structure, and the safety glass catch adopts the aluminium section bar spraying.At high temperature, strong corrosive environment uses down, is corroded very soon or burned distortion, and service life is short, also is not easy to clean, and the acid mist in the ventilation shaft is condensate in inner-walls of duct and is back in the vent cabinet, causes corrosion, influences experimental result.

Summary of the invention

Easily be corroded in order to overcome existing vent cabinet, burned distortion is inconvenient to clean, return the shortcoming that acid cannot be collected, the utility model provides a kind of vent cabinet, and this vent cabinet is suitable for the requirement that high strength is used under high temperature, the strong corrosive environment, return acid and all collect, it is convenient to clean.

The technical solution adopted in the utility model is:

1, unitary construction: adopt the one-body molded structure of inner bag mould, air-tightness is good, and convenient the cleaning is non-leakage.

2, turning: adopt fillet, eliminate the exhausting dead angle, the whole emptyings of toxic gas.

3, design acid solution recovery system: vent cabinet air outlet airduct inwall upwards forms annular refluence groove, the refluence trench bottom designs a water conservancy diversion pore, connects mozzle, and condensation is returned acid and refluxed in the refluence groove along the airduct inwall, collect with mozzle, can not flow back to and cause corrosion (wind cabinet and operating personnel) in the cabinet

4, deflector epoxide resin material one-shot forming does not have seam, and each position checks and balance, and it is not yielding to be heated, and is able to bear strong corrosion.

5, vent cabinet inner bag depth increases 120MM, and inwall and deflector be from electric furnace 120MM far away, thereby is difficult for by burned damage, longer service life.

6, pond and table top are one-body molded, and be non-leakage, do not come unstuck.

7, epoxy resin table top and Over-The-Counter are one-body molded, thick 25MM, the thick 30MM in edge.Because of the dash limit is arranged, can not flow out outside the cabinet during cleaning, pollute corrosion, sewage all discharges by tank.

8, cabinet employing epoxy resin composite material and square steel support are one-body molded down, in the steel bracket embedded composite material, do not expose in the air, thereby are not afraid of bubble and are not afraid of corrosion.

9, door hinge: adopt engineering plastics and steel axle combined type, be difficult for being corroded, can use for a long time.

The beneficial effects of the utility model are:

1, each several part is difficult for being corroded, and inner bag and deflector are difficult for effectively being increased the service life by burned.

2, return acid and totally reclaimed, can not flow back to and cause corrosion in the vent cabinet, also can not drip on the laboratory sample, cause experimental result to lose efficacy.

3, clean conveniently, toxin expelling gas is clean.

Description of drawings

Figure 1A and Figure 1B are for improving forward and backward unitary construction figure;

Fig. 2 A and Fig. 2 B are for improving the schematic diagram at forward and backward turning;

Fig. 3 A and Fig. 3 B are for improving the schematic diagram of forward and backward refluence groove;

Fig. 4 A and Fig. 4 B are for improving the schematic diagram of forward and backward deflector;

Fig. 5 A and Fig. 5 B are for improving the schematic diagram of the forward and backward degree of depth and tank;

Fig. 6 A and Fig. 6 B are for improving the schematic diagram of forward and backward table top;

Fig. 7 A is a stereogram of the present utility model;

Fig. 7 B is the cutaway view of Fig. 7 A.

The specific embodiment

Under the metallurgical laboratory experiment condition, with high-power (more than the 5KW) electric furnace (size 400*600) heat simultaneously tens in the beaker sulfuric acid and the laboratory sample of metal reaction, and reach the concentrated sulfuric acid and smolder.Since the baking of high power electric furnace, the severe corrosive of the concentrated sulfuric acid, the lasting fumes of sulphuric acid that heats generation condenses in a large amount of condensation of airduct inwall generation and returns the acid refluence. in the case, now the utility model further specified in conjunction with other vent cabinets and accompanying drawing:

		The utility model		Other vent cabinets
								Structure	Performance	Structure	Performance
Figure 1A Figure 1B	Unitary construction	The integrally formed structure of inner bag mould fuses with table top, and is seamless	Air-tightness is good, cleans the inner bag sour water and all flows into tank, and is non-leakage	Be spliced by left plate, right plate, top board, backboard, table top, there is the slit junction, and interior lining panel sticks with glue	The inwall cleaning easily is directed at water and enters the slit, forms hydrops and flows to down cabinet, ground, may cause that interior lining panel comes unstuck
						Fig. 2 A Fig. 2 B	The turning	Fillet is adopted at all turnings, and is seamless	Do not deposit the exhausting dead angle, the whole emptyings of poison gas	The right angle	Dead angle poison gas row not to the utmost
Fig. 3 A Fig. 3 B	The refluence groove	Wind cabinet air outlet place forms annular refluence groove along the airduct inwall, guides under the platform with mozzle and collects	Return acid and all reclaim, do not flow back in the cabinet, cause corrosion, also can not drip on the sample, cause the result to lose efficacy	There is not back sour gathering system	Return acid and flow back in the cabinet, the corrosion inwall drips to and causes result error on the laboratory sample, drips on operating personnel's skin or the clothes and causes corrosion
						Fig. 4 A Fig. 4 B	Deflector	One-shot forming, epoxide resin material	Do not have the slit, not perishable, it is not yielding to be heated	Two blocks of thin physics and chemistry plates are pieced together phenolic resins	Deflector baking distortion does not have guide functions after the distortion, return acid and flow to the front, can't collection and treatment.Relatively easy corrosion
Fig. 5 A Fig. 5 B	The degree of depth	Glass door is to the effective depth 720MM of deflector	Deflector is from electric furnace 120MM far away, and inwall and deflector temperature can be lower, and be not fragile, long service life	Glass door is to the effective depth 600MM of deflector	Inwall highly toasts from the nearly 10CM of electric furnace, temperature height, very fast damage
							Tank	With the table top one-shot forming	Convenient flushing, non-leakage	And close with sticker between the table top	Long-term use is easily come unstuck and is caused seepage
Fig. 6 A Fig. 6 B	Table top	Epoxy resin composite material and Over-The-Counter fuse, thick 25MM, and the thick 30MM in edge is just wearing the waterproof limit	Strong corrosion resistant performance more, the sewage that cleans inner bag can not flow to outside the cabinet, is all discharged by tank	Real core physics and chemistry plate, four limit the raised areas are gluing, thick middle 13MM, the thick 26MM in edge	Corrosion-resistant is a little, can't be made of one moulding, the seepage of coming unstuck after service time is long

Claims (3)

1. a vent cabinet adopts epoxy resin composite material one-body molded, it is characterized in that, its left plate, right plate, backboard, top board, table top, tank are linked as unified whole, seamless, and the turning becomes fillet, table top forms the dash limit by the glass door place, and effective depth reaches 720mm and do not come unstuck.

2. according to right 1 described vent cabinet, it is characterized in that place, inner bag air port along the airduct inwall upwards forms annular refluence groove, annular refluence trench bottom designs a pod apertures.

3. according to right 1 described vent cabinet, it is characterized in that deflector adopts epoxy resin composite material one-body molded, no seam.

Images