CN2758612Y - Hood fume extractor with electric heater in hood duct - Google Patents

Abstract

The utility model relates to a wind hood fume extractor with an electric heater in wind hood duct, which is composed a hood cover, an oil fume exhausting fan and a wind hood fan, wherein the hood cover comprises an oil fume exhausting channel and a wind hood duct, and also comprises an electric heater for electrically heating air in the wind hood duct; the wind which enters the wind hood fan through an air filter screen is blown out of the utility model form a circular seam type spraying nozzle on an outlet of the wind hood duct after passing through an electric heater to totally or partly become a fan hood; the wind hood fan is an axial flow fan or a centrifugal fan; the electric heater is an electric heating wire type cylindrical air heater or a strip frame-shaped or annular air heater. Two to four channels which are not communicated are divided by two to four rib plates below a partition plate in the wind hood duct, and a wind passing through hole is arranged on the partition plate corresponding to each channel. Each through hole is correspondingly provided with one cylindrical air heater, or one strip frame-shaped air heater with a straight line or an arc line, or one annular air heater with a straight line or an arc line on the upper part of the spraying nozzle of the wind outlet of the wind hood duct to be arranged near the spraying nozzle. A wall hung type fume extractor or a hanging fume extractor of the utility model can replace outside fresh air.

Description

The fan housing smoke exhaust ventilator that has electric heater in the fan housing passage

Affiliated technical field

The utility model relates to a kind of smoke exhaust ventilator, particularly a kind of fan housing smoke exhaust ventilator.

Background technology

Chinese patent application number is 98203762.7 air curtain smoke exhaust ventilator and 99218971.3 air curtain type fume exhaustor, and Chinese patent application number is the double-layer air-flow hood ventilation apparatus of 98218879.X, disclose by the mist extractor system and can produce the system of air curtain or air curtain or smoke exhaust ventilator that the system of double-layer air-flow cover constitutes, for the purpose of narration, they are belonged to the fan housing smoke exhaust ventilator.

Aforementioned smoke exhaust ventilator, fan housing wind-warm syndrome degree is identical with natural air, human body is subjected to this wind, easily cause headache, arm crymodynia, catch a cold etc., especially cold day, can only work as is only to have the smoke exhaust ventilator of mist extractor system to use, make an appointment with at one's discretion half more even oil smoke, waste gas is diffused in the kitchen in and even outside the kitchen, the date is long slightly, completely thick grease times so can be amassed in surfaces such as the wall in the kitchen, door and window, cabinet even castor.In addition, directly the fan housing wind of Yin Ruing is easily brought dust and impurity into and contaminated food products.

Summary of the invention:

The purpose of this utility model is: design a kind of changes in temperature fan housing smoke exhaust ventilator, it can produce the cold wind cover, can produce the warm braw cover again, fan housing wind cleaning, the product beneficial people that has attractive appearance.

The technical scheme in the invention for solving the technical problem is: the smoke exhaust ventilator that has electric heater in the fan housing passage, by inner cover, outer cover, be linked in the lamp plate of inner cover end opening and be linked in inner cover, the case that gusset between the outer cover is formed, the fume exhaust blower fan, the fan housing blower fan is formed, wherein inner cover inner chamber and inner cover are formed the fume exhaust passage, in, cavity and inner cover between the outer cover, outer cover consists of the fan housing passage, fan housing passage lower end forms nozzle ring, the fume exhaust blower fan of monomer is arranged on the inner cover top, constitute the fume exhaust system with inner cover, the fan housing blower fan of monomer is bound up on the dividing plate on the fan housing vias inner walls or is bound up on the outer cover and outer cover, inner cover and lamp plate constitute the fan housing system together, perhaps the fume exhaust blower fan of disjunctor and fan housing blower fan are stretched motor by the twin shaft on the dividing plate that is bound up on the fan housing conduit wall and the fan blade that is bound up on respectively on this motor two ends shaft extension constitutes, wherein, the fan blade that is arranged in the fume exhaust passage is stretched fume exhaust blower fan and the inner cover that motor constitutes with twin shaft and is constituted the fume exhaust system, and the fan blade and the twin shaft that are arranged in the fan housing passage are stretched fan housing blower fan and the outer cover that motor constitutes, inner cover and dividing plate constitute the fan housing system together, it is characterized in that: electric heater is installed on the fan housing channel inner surface.

By cylindrical shell, thermal insulation layer, the lateral frame plate, the electrothermal wire rack that longitudinal support plate and cross recess rack plate constitute, become have mercy on heating wire in the groove on this support of individual layer helical form, a temperature fuse of heating wire one end series connection therewith, a temperature automatic reset switch of connecting with the heating wire other end, that connects with the temperature fuse and the temperature automatic reset switch other end respectively draws lead and the heating wire formula tubular electric heater that constitutes, or by cylindrical shell, thermal insulation layer, lateral frame plate left side sheet, sheet in the lateral frame plate, the right sheet of lateral frame plate, longitudinal support plate left side sheet, sheet in the longitudinal support plate, the electrothermal wire rack that right sheet of longitudinal support plate and cross recess rack plate constitute, and one become the double-layer spiral shape to be coiled in internal layer heating wire and outer heating wire in the groove on this support, a temperature fuse of heating wire one end series connection therewith, a temperature automatic reset switch of connecting with the heating wire other end, that connects with the temperature fuse and the temperature automatic reset switch other end respectively draws lead and constitutes heating wire formula tubular electric heater, connects with dividing plate upper surface or lower surface;

Perhaps by outside bar shaped frame plate, the bar shaped framework that inboard bar shaped frame plate and end plate are formed, interior lining panel and the support chip that becomes right-angled intersection with interior lining panel, heating wire in the fluting circular hole that embeds the support chip upper end is in line, respectively with the temperature fuse of heating wire one end with the binding post connection, the heating wire other end is controlled automatic reset switch with the temperature that binding post connects therewith, constitute a bar shaped electric heater with the temperature fuse and the temperature control automatic reset switch other end with the lead of drawing that binding post connects respectively, wherein because of outside bar shaped frame plate, inboard bar shaped frame plate is in line or circular arc line or oval camber line or roseleaf profile camber line according to the cannelure shape of the case of bar shaped electric heater installation place, corresponding formation straight line bar shaped electric heater, circular arc bar shaped electric heater, elliptic arc strip cabinet frame electric heater, roseleaf profile arc bar shaped electric heater, and 4 straight line bar shaped electric heater series connection constitute a vertical element shaped as frame electric heater, or 2～4 circular arc bar shaped electric heater series connection constitute a circular arc strip cabinet frame electric heater, or 2～4 elliptic arc bar shaped electric heaters elliptic arc strip cabinet frame electric heater that is in series, or 8 roseleaf profile arc bar shaped electric heaters roseleaf profile arc strip cabinet frame electric heater that is in series, a kind of strip cabinet frame electric heater of shape and a case of similar shape correspondingly with fan housing passage madial wall on dividing plate below air-out zone madial wall connect mutually;

Perhaps by to the similar interior annular frame plate of cannelure shape of the case of installation place, exterior annular frame plate and joint cover looping framework, interior lining panel and support chip, open loop heating wire in the groove of embedding support chip top, a temperature fuse of heating wire one end connect in series therewith, heating wire other end connect in series temperature is controlled automatic reset switch therewith, control the lead of drawing of automatic reset switch other end connect in series respectively with temperature fuse and temperature, constitute an annular electric heater, connect mutually with air-out zone madial wall below the dividing plate on the fan housing passage madial wall and be installed in the fan housing passage, because of the interior annular frame plate, the exterior annular frame plate is with the cannelure shape of the case of installation place, and constitute linear-toroidal electric heater or circular arc annular electric heater or elliptic arc annular electric heater or roseleaf profile arc arc ring shape electric heater, a kind of annular electric heater of shape and a case of similar shape correspondingly with fan housing passage madial wall on dividing plate below the regional madial wall of air-out connect mutually.

A unique airstrainer is arranged in the smoke exhaust ventilator that monomer fume exhaust blower fan and monomer fan housing blower fan are arranged or have unique one group with the identical airstrainer of fan housing blower fan quantity, wherein, airstrainer and the connection of outer cover end face or airstrainer and air intake flange coupling, or airstrainer and the connection of fan housing air inlet.

Nozzle ring by within lamp plate and the outer cover between the perimeter surface slit constitute, be called nature circumferential weld type nozzle, or nozzle ring constitutes by lamp plate and by the slit between the wind direction ring that is bound up on perimeter surface within the outer cover, be called band wind direction ring circumferential weld type nozzle (169), each circumferential weld type nozzle seam is wide to be 3～8mm.

2～4 gussets are separated into identical with gusset quantity passage independently separately with the air-out zone in the fan housing passage, a through hole is arranged on the dividing plate in each passage, over against through hole, a heating wire formula tubular electric heater is bound up on the upper surface of dividing plate, an axial fan is bound up on the lower surface of dividing plate and constitutes the fan housing system, perhaps on the dividing plate in each passage a through hole is arranged, over against through hole: the lower surface of heating wire formula tubular electric heater and dividing plate connects, axial fan blower fan connects with upper surface at dividing plate and constitutes the fan housing system, perhaps on the dividing plate in each passage a through hole is arranged, over against through hole: the lower surface of axial fan and dividing plate connects, a heating wire formula tubular electric heater is installed in the fan housing fan outlet and constitutes the fan housing system, perhaps on the dividing plate in each passage a through hole is arranged, over against through hole, the upper surface of axial fan and dividing plate or lower surface connect, a heating wire formula strip cabinet frame electric heater or an annular electric heater are bound up on the nozzle inner surface and constitute the fan housing system, perhaps on the dividing plate in each passage a through hole is arranged, over against through hole, the upper surface of fluid-driven blower fan and dividing plate connects, and heating wire formula strip cabinet frame electric heater or annular electric heater are bound up on the fan housing vias inner walls face at nozzle place and formation fan housing system.

The thermal insulation layer of heating wire formula tubular electric heater is by constituting with cylinder inner surface shape, measure-alike micarex, or thermal insulation layer heat-resisting or fireproof coating constitutes by the one deck that is coated with full cylinder inner surface.

Within heating wire formula strip cabinet frame electric heater or the annular electric heater liner plate by be covered in heating wire formula strip cabinet frame electric heater or annular electric heater towards the surface of heating wire and have the micarex of identical outer contour shape, size to constitute with these surfaces, on the interior lining panel, on the bar shaped frame plate, rivet or solder joint place are arranged, hole than the big 3～8mm of rivet external diameter is arranged, or have a block-shaped micarex identical to cover on this interior lining panel in addition with the interior lining panel outer contour shape.

Two sides, the cover of upholstery top air intake mounting hole that distributing constitutes fan housing passage air inlet, or the cover of upholstery end face is connecting the air intake flange and constitutes fan housing passage air inlet and side and connecting the mist extractor outward flange and constitute fume exhaust passage exhaust outlet.

Consist of the inner cover of case and outer cover and be successively oblique tetragonous cone table shape outer cover and the cuboid cover of upholstery and the inner cover that connect with it or be successively cut the oblique tetragonous cone table shape of rib outer cover and connect with it cut rib cuboid cover of upholstery and inner cover or be successively positive tetragonous cone table outer cover and the cuboid cover of upholstery and the inner cover that connect with it be to cut rib cuboid outer cover and inner cover successively or be successively fillet cuboid outer cover and inner cover or be successively trumpet flower shape outer cover and inner cover or be successively elliptical horn outer cover and inner cover or be successively rose outer cover and inner cover or be respectively cut rib cuboid outer cover and connect with it cut rib cuboid cover of upholstery and inner cover.

Hang and enclose in the screwed hole that is bound up on the outer cover.

The electrical equipment box is bound up on the fan housing channel inner surface.

The beneficial effect of the utility model changes in temperature fan housing smoke exhaust ventilator is:

Cold and hot according to weather, select cold or warm braw cover, unlikely the people is blown disease, thereby throughout the year, cold snap especially can both be brought into play the advantage of fan housing smoke exhaust ventilator high efficiency fume exhaust; Airstrainer makes the wind cleaning that sucks the fan housing blower fan; The fan housing blower fan of apart arrangement and circumferential weld shape nozzle make fan housing wind cross direction profiles evenly, tightly not have sparse zone, thereby fully cover oil smoke, waste gas, allow the mist extractor blower fan have the sufficient time up hill and dale oil smoke, waste gas to be discharged outside the room; Can not only make the room air cooling, room air is heated up; The tubular air heater volume of individual layer heating wire is little, simple structure, and cost is low, and the tubular air heater thermal efficiency ratio individual layer height of double-deck heating wire is suitable for and big air quantity fan housing blower fan coupling; Frame shape or annular air heater be simple structure not only, cost is low, also heat loss is little because the air through heating lasts short in smoke exhaust ventilator, and with shape of cross section make with have fan housing smoke exhaust ventilator fan housing wind passage now in the installation contact position shape of cross section at nozzle place identical or keep the sealing contact condition, and they are transformed into changes in temperature fan housing smoke exhaust ventilator, the annular air heater is only used a thermal cut-off and a thermostat, has the few advantage of element; Mist extractor blower fan and fan housing blower fan all are hidden in the case, and symmetric arrangement, outer cover and the cover of upholstery that matches with it and inner cover, lamp plate and on the product artistic style of the different style that forms of the combination of parts such as illuminating lamp, switch, make the new cold-warm type fan housing smoke exhaust ventilator profile of this practicality succinct, can give aesthetic feeling; The utility model changes in temperature fan housing smoke exhaust ventilator part inner cover, mist extractor blower fan, fan housing hair-dryer, lamp plate etc., part has realized generalization, saves manufacturing cost.

Be elaborated with reference to accompanying drawing below in conjunction with embodiment, so that to the purpose of this utility model, feature and advantage are carried out more deep understanding.

Description of drawings

Fig. 1～Fig. 6 is upward view, front view, left view, vertical view, I partial enlarged drawing, the II partial enlarged drawing of first embodiment of 1 hanging changes in temperature fan housing of centrifugal mist extractor cone walls of 4 axial-flow type fan housings of the utility model blower fan smoke exhaust ventilator successively, wherein, the left-half of front view is by a-a gained cutaway view in the vertical view, and the left-half of vertical view is the view that removal cover of upholstery and outer cover obtain.

Fig. 7～Figure 12 is upward view, front view, left view, vertical view, III partial enlarged drawing, the IV partial enlarged drawing of second embodiment of 1 hanging changes in temperature fan housing of centrifugal mist extractor cone walls of 4 axial-flow type fan housings of the utility model blower fan smoke exhaust ventilator successively, wherein, the left-half of front view is by b-b gained cutaway view in the vertical view, and the left-half of vertical view is the view that removal cover of upholstery and outer cover obtain.

Figure 13～Figure 18 is upward view, front view, left view, vertical view, V partial enlarged drawing, the VI partial enlarged drawing that 1 centrifugal mist extractor blower fan of 4 axial-flow type fan housings of the utility model blower fan is hung first embodiment of ventilation type changes in temperature fan housing smoke exhaust ventilator successively, wherein, the left-half of front view is by c-c gained cutaway view in the vertical view, and the left-half of vertical view is the view that removal cover of upholstery and outer cover obtain.

Figure 19～Figure 24 is upward view, front view, left view, vertical view, VII partial enlarged drawing, the VII partial enlarged drawing of first embodiment of 1 centrifugal mist extractor blower fan wall hanging ventilation type changes in temperature fan housing smoke exhaust ventilator of 4 axial-flow type fan housings of the utility model blower fan successively, wherein, the left-half of front view is by d-d gained cutaway view in the vertical view, and the left-half of vertical view is the view that removal cover of upholstery and outer cover obtain.

Figure 25～Figure 29 is upward view, front view, left view, vertical view, the IX partial enlarged drawing of the 3rd embodiment of 1 hanging changes in temperature fan housing of centrifugal mist extractor cone walls of 3 axial-flow type fan housings of the utility model blower fan smoke exhaust ventilator successively, wherein, the left-half of front view is by e-e gained cutaway view in the vertical view, and the left-half of vertical view is the view that removal cover of upholstery and outer cover obtain.

Figure 30～Figure 35 is upward view, front view, left view, vertical view, X partial enlarged drawing, the XI partial enlarged drawing of first embodiment of the hanging changes in temperature fan housing of 3 fan housing blower fans of the utility model, 2 axial-flow type mist extractors cone walls smoke exhaust ventilator successively, wherein, the left-half of front view is by f-f gained cutaway view in the vertical view, and the left-half of vertical view is the view that removal cover of upholstery and outer cover obtain.

Figure 36～Figure 39 is front view, left view, vertical view, the A-A broken section enlarged drawing of the utility model individual layer heating wire cartridge type air heater embodiment successively.

Figure 40～Figure 43 is front view, left view, vertical view, the A-A broken section enlarged drawing of the double-deck heating wire tubular of the utility model air heater embodiment successively.

Figure 44～Figure 45 is front view, the left view of the utility model frame shape or ring-like air heater example structure and installation site signal successively.

Figure 46～Figure 48 is B-B revolved sectional view, A-A cutaway view, the C-C revolved sectional view that the utility model air heater embodiment is looked in Figure 44～45 successively.

Figure 49～Figure 55 is that the K of Figure 46～48 is to view, XII～XV partial enlarged drawing, D-D cutaway view successively; M is to view.

Profile when the ring-like air heater of Figure 56 utility model is used for smoke exhaust ventilator embodiment shown in Figure 2 is dissectd the view that obtains with A-A slice location among Figure 44.

Figure 57 Figure 56 shows the E-E cutaway view of structure.

Figure 58～Figure 60 is XVI partial enlarged drawing, front view, the vertical view that 1 axial-flow type mist extractor of 4 axial-flow type fan housings of the utility model blower fan blower fan hangs trumpet flower ventilation type changes in temperature fan housing smoke exhaust ventilator successively, wherein, the right half part of front view is by g-g gained cutaway view in the vertical view, and the right half part of vertical view is the view that removal cover of upholstery and outer cover obtain.

Figure 61～Figure 64 be successively 1 axial-flow type mist extractor of 2 axial-flow type fan housings of the utility model blower fan blower fan front view of hanging the embodiment of elliptical horn flower ventilation type changes in temperature fan housing smoke exhaust ventilator, left view, vertical view, XVII partial enlarged drawing wherein, the right half part of front view is by h-h gained cutaway view in the vertical view, and the right half part of vertical view is the view that removal cover of upholstery and outer cover obtain.

Figure 65～Figure 67 is front view, vertical view, the XVII partial enlarged drawing that 1 axial-flow type mist extractor of 4 axial-flow type fan housings of the utility model blower fan blower fan hangs the embodiment of rose ventilation type changes in temperature fan housing smoke exhaust ventilator, wherein, the right half part of front view is by i-i gained cutaway view in the vertical view, and the right half part of vertical view is the view that removal cover of upholstery and outer cover obtain.

Figure 68 is an example structure schematic diagram that the air curtain smoke exhaust ventilator is transformed into changes in temperature fan housing smoke exhaust ventilator with the utility model frame shape or ring-like air heater.

Figure 69 is an example structure schematic diagram that the air curtain smoke exhaust ventilator is transformed into changes in temperature fan housing smoke exhaust ventilator with the utility model frame shape or ring-like air heater.

Figure 70 is an example structure schematic diagram that the double-layer air-flow hood ventilation apparatus is transformed into changes in temperature fan housing smoke exhaust ventilator with the utility model frame shape or ring-like air heater.

Figure 71～Figure 76 is upward view, front view, left view, vertical view, XIX partial enlarged drawing, the XX partial enlarged drawing with first embodiment of 4 hanging changes in temperature fan housings of centrifugal fan housing blower fan 2 axial-flow type mist extractors cone walls of the utility model smoke exhaust ventilator, wherein, the right half part of front view is by j-j gained cutaway view in the vertical view, and the right half part of vertical view is the view that removal cover of upholstery and outer cover obtain.

1. inner covers among Fig. 1～Fig. 6,2. oblique tetragonous cone table shape outer cover, 3. cuboid cover of upholstery, 4. sign board, 5. oil strain guard, 6. lamp, 9,15,17,20. gusset, 10. guide plates, 11. lamp plate, 12. axial-flow type fan housing blower fans, 13. centrifugal fume exhaust blower fans, 14 or 43. dividing plates, 16. miniature switch, 18. mist extractor flanges, 19. airstrainers, 21. decorate the shirt rim, 22. the tubular electric heater, 23. lubricating cups, joint cover on 24., 25. back joint cover, 26. nozzles, 27. buckle.

1. inner covers among Fig. 7～Figure 12,27. cut the oblique tetragonous cone table outer cover of rib, and 28. cut rib cuboid cover of upholstery, 4. sign board, 5. oil strain guard, 6. lamp, 29,33,350,35. gussets, 30. guide plates, 11. lamp plate, 12. axial-flow type fan housing blower fans, 13. centrifugal fume exhaust blower fans, 31 or 32. dividing plates, 16. miniature switch, 18. mist extractor flanges, 34. airstrainers, 36. decorate the shirt rim, 22. the tubular electric heater, 23. lubricating cups, joint cover on 24., 25. back joint cover, 26. nozzles, 27. buckle.

37. inner covers among Figure 13～Figure 18,38. positive tetragonous cone table outer covers, 39. cuboid cover of upholstery, 4. sign board, 40. oil strain guard, 6. lamps, 41,44,17,46. gussets, 85. guide plates, 42. lamp plates, 12. axial-flow type fan housing blower fan, 13. centrifugal fume exhaust blower fans, 43 or 14. dividing plates, 16. miniature switch, 18. the mist extractor inner flange, 45. airstrainers, 54. decorate the shirt rim, 22. tubular electric heater, 23. lubricating cup, 48. nozzles, 53. back joint covers, 50. mist extractor interior conduit, 51. the mist extractor outward flange, 49. air intake flanges, 52. hang circle.

1. inner covers among Figure 19～Figure 24,2. oblique tetragonous cone table shape outer cover, 55. cuboid cover of upholstery, 4. sign board, 5. oil strain guard, 6. lamp, 9,15,17,20. gussets, 10. guide plate, 11. lamp plates, 12. axial-flow type fan housing blower fan, 13. centrifugal fume exhaust blower fans, 14 or 43. dividing plates, 16. miniature switch, 18. mist extractor inner flanges, 45. airstrainers, 21. the decoration shirt rim, 22. tubular electric heaters, 23. lubricating cups, 24. last joint cover, 25. back joint cover, 26. nozzles, 27. buckle, 50. mist extractor interior conduit, 51. the mist extractor outward flange, 49. air intake flanges, 87. ceilings

56. inner covers among Figure 25～Figure 29,57. cut rib cuboid outer cover, 4. sign board, 58. lamp, 60,64,65,68. gussets, 62. lamp plates, 12. axial-flow type fan housing blower fan, 13. centrifugal fume exhaust blower fans, 63. dividing plates, 16. miniature switch, 18. mist extractor flanges, 67. airstrainers, 22. the tubular electric heater, 69. lubricating cups, 66. nozzles, 70. joint cover, joint cover on 71., 27. buckle.

73. inner covers among Figure 30～Figure 35,74. fillet cuboid outer cover, 4. sign boards, 75. oil strain guard (containing lubricating cup), 58. lamps, 76,80,81,83. gussets, 77. lamp plate, 12. axial-flow type fan housing blower fans, 78. axial-flow type fume exhaust blower fans, 79. dividing plate, 16. miniature switch, 82. fume exhaust flanges, 67. airstrainer, 22. the tubular electric heater, 84. nozzles, 27. buckle.

90. times terminal pads among Figure 36～Figure 39,91. draw lead, 92. tubular rivets and pad, 93.139 ℃ temperature fuse, 94. heating wire (self coiling), 95. cylindrical shells, 96. thermal insulation layer, 97. cross recess rack plates, terminal pad on 98., 101. binding post, 102.1# supporting plate, 103.105 ℃ of automatic reset switch, 104. tubular rivet, 105.2# supporting plate, 111,112. tubular rivets, 114. rectangular teeth, 115. arc strips.

90. times terminal pads among Figure 40～Figure 42,91. draw lead, 92. tubular rivets and pad, 93.139 ℃ of temperature fuses, 94. outer heating wire (dextrorotation is around on the support), 95. cylindrical shell, 96. thermal insulation layers, 97. cross recess rack plates, 98. last terminal pad, 99.3# supporting plate left side sheet, 100. tubular rivets, 101. binding posts, 102.3# sheet in the supporting plate, 103.106 ℃ automatic reset switch, 104. tubular rivets, the right sheet of 105.3# supporting plate, 106.4# supporting plate left side sheet, 107.4# sheet in the supporting plate, the right sheet of 108.4# supporting plate, 109. tubular rivets, 110. internal layer heating wire (left-handed being around on the support), 111,112,113. tubular rivet, 114. rectangular teeths, 115. arc strips.

116,120. solder joints among Figure 44～Figure 55,117,128,129,140,144,146. leads, 118,125,132,135,137,139,141. heating wire, 119,136,138. fire-resistnt wires, 121.5# bar shaped frame plate, 122.6# the bar shaped frame plate, 123. end plates, 127,130. binding posts, 131. through hole, 133,134,146. draw lead, 142. support chips, 147. interior lining panels.

143. syllogic heating wire among Figure 56～Figure 57,133,134. draw lead, and 144,145.7#, 8# ring frame frame plate, 146. joint covers, 148. interior lining panels, 149. support chips, 93. temperature fuses, 103. automatic reset switch.

150. inner covers among Figure 58～Figure 60,151. trumpet flower shape outer covers, 152. cover of upholstery (151 outer covers and 152 cover of upholstery or an integral body), 153. sign board, 154. oil strain guards, 155. lamps, 158. gusset, 159. guide plate, 160. lamp plates, 161. axial-flow type fan housing blower fans, 162. axial-flow type fume exhaust blower fan, 163. dividing plate, 164. miniature switch, 165. mist extractor inner flanges, 166. airstrainer, 167. decorate shirt rim (or cancellation), 168. circular arc strip cabinet frames or circular arc annular electric heater, 169. nozzles, 170. mist extractor interior conduit, 171. air draft oil smoke outward flange, 172. air intake flanges, 173. hang circle; 174. intake stack, 175. mist extractor Outer Tubes, 176. wind direction rings.

180. inner covers among Figure 61～Figure 64,181. elliptical horn outer covers, 182. cover of upholstery (181 outer covers and 182 cover of upholstery or an integral body), 183. sign board, 184. oil strain guards, 185. lamps, 188,192. gusset, 189,191. guide plate, 190. lamp plates, 193. axial-flow type fan housing blower fans, 194. axial-flow type fume exhaust blower fans, 195. dividing plate, 196. miniature switch, 197. mist extractor inner flanges, 198. airstrainers, 199. wind direction ring, 200. decorate shirt rim (or cancellation), 201. elliptic arc strip cabinet frames or elliptic arc annular air heater, 209. nozzles, 202. mist extractor interior conduit, 203. the mist extractor outward flange, 204. air intake flanges, 206. hang circle; 205. the mist extractor Outer Tube, 207. intake stacks.

210. inner covers among Figure 65～Figure 67,211. rose outer covers, 212. cover of upholstery, 213. sign board, 214. oil strain guards, 215. lamps, 218. gusset, 219. guide plate, 220. lamp plates, 221. axial-flow type fan housing blower fans, 222. axial-flow type fume exhaust blower fan, 223. dividing plate, 224. miniature switch, 225. mist extractor inner flanges, 226. airstrainer, 227. decorate shirt rim (or cancellation), 228. roseleaf profile arc strip cabinet frames or roseleaf profile arc ring shape electric heater, 229. nozzles, 230. mist extractor interior conduit, 231. the mist extractor outward flange, 232. air intake flanges, 233. hang circle; 234. the mist extractor Outer Tube, 235. intake stacks.

250. inner covers among Figure 71～Figure 76,251. cut rib cuboid outer cover, and 252. cut rib cuboid cover of upholstery, 4. sign board, 253. oil strain guards, 254. lamps, 255,265. gussets, 256. hood-shaped lamp plates, 257. fluid-driven fan housing blower fans, 258. axial-flow type fume exhaust blower fan, 259. loam cakes, 260. dividing plates, 16. miniature switch, 261. mist extractor flanges, 262. airstrainers, 263. vertical element shaped as frame or linear-toroidal air heater, 264. nozzles, 27. buckle.

The specific embodiment

In Fig. 1～Fig. 6, centrifugal mist extractor blower fan 13, be installed in inner cover 1 inside top, the inner cover end opening connects plate shaped lamp plate 11, open 1 oil smoke suction inlet on the lamp plate, 2 oil strain guards 5 are connected in this suction inlet place lamp plate lower surface or embed this suction inlet, gusset 9,15,17,20 link inner cover and oblique tetragonous cone table shape outer cover 2 and become case, have between the inside and outside cover and form air duct at interval, with dividing plate 14 or 43 air duct is separated, dividing plate is above to be the air intake zone, dividing plate is following to be air-out zone 29, gusset also is divided into the air-out zone independently 4 passages, 4 fan housing blower fans 12 align one by one on the dividing plate 43 and export shape with the fan housing blower fan, identical or the close quantity of size is identical crosses the wind through hole and is installed in dividing plate 43 upper surfaces, each through hole of dividing plate 43 lower surfaces by last terminal pad 98 (referring to Figure 36～Figure 39, Figure 40～Figure 43) installs 1 tubular air heater 22, or a strip cabinet frame air electric heater or an annular air heater are installed near nozzle above the nozzle at the air outlet place of fan housing passage; Or 4 fan housing blower fans 12 respectively with 4 tubular electric heaters on after terminal pad 98 connects, the through hole that aligns one by one on the dividing plate 14 by terminal pad 90 under this heater 22 is installed again, or after the air in air intake zone blown out simultaneously by each fan housing blower fan, process and the through hole that links separately, the tubular air heater, fan housing blower fan place air-out passage converges into fan housing, the wide 3～5mm of jet hole circumferential weld from 26 ejections of circumferential weld shape nozzle; Produce the nature fan housing when fan housing blower fan is switched on separately, the fan housing blower fan, when the tubular electric heater is switched on simultaneously, produce fan housing through heating; The cover of upholstery two sides all have mounting hole not only to play decoration function but also play the effect of fan housing air inlet, air cleaner 19 covers upper port between inside and outside cover, buckle 27 and be fixed on the outer cover squab panel, the present embodiment smoke exhaust ventilator is fixed on the wall by the key shaped hole that buckles the upper end by screw.

Among the different the utility model changes in temperature fan housing smoke exhaust ventilator embodiment of shown in Fig. 7～Figure 12, Figure 13～Figure 18, Figure 19～Figure 24, Figure 25～Figure 29, Figure 30～Figure 35, Figure 58～Figure 60, Figure 61～Figure 64, Figure 65～Figure 67 and Figure 71～Figure 76 9 kinds and Fig. 1 embodiment have identical or think like parts and configuration relation mutually, for simplicity's sake, only list the title of the part different, make brief description in case of necessity, point out configuration relation with Fig. 1.

In Fig. 7～Figure 12, cut the oblique tetragonous cone table outer cover 27 of rib, cut rib rectangle cover of upholstery 28, gusset, dividing plate, airstrainer 34.

In Figure 13～Figure 18, positive tetragonous cone table outer cover 38, cuboid cover of upholstery 39, gusset, dividing plate, lamp plate, airstrainer 45, decorate the shirt rim, nozzle 48 removes and buckles 27, newly-increased: air intake flange 49, mist extractor outward flange 51, mist extractor interior conduit 50 hangs circle 52, and the fan housing blower fan is by intake stack 47 inspiration outdoor fresh airs; Four facades on the cover of upholstery 39, from distance mist extractor outward flange lower edge 20mm, the 30mm of being separated by up and down makes six screwed holes in advance, is used for adjusting present embodiment smoke exhaust ventilator suspension height.

In Figure 19～Figure 24, cover of upholstery 55, airstrainer 45 is decorated the shirt rim, newly-increased air intake flange 49, mist extractor outward flange 51, mist extractor interior conduit 50, this example has the ability of displacement outdoor fresh air.

In Figure 25～Figure 29, inner cover 56 is cut rib cuboid outer cover 57, gusset, dividing plate, lamp plate, airstrainer 67, nozzle 66, cover of upholstery replaces by cutting the concordant the first half in rib cuboid outer cover plane from the inner cover, or clips this first half and replaced by a upper cover plate.Lamp plate is attached on the centrifugal fume exhaust Blower Housing by two joint covers 70,3 fan housing blower fans 12 respectively with 3 tubular electric heaters 22 on after terminal pad 98 connects, be installed in through hole on the dividing plate 14 by terminal pad 90 under the tubular electric heater 22 again.

In Figure 30～Figure 35, gusset, dividing plate, airstrainer 67, nozzle 84, inner cover 73 end openings connect hood-shaped lamp plate 77 (the cover mouth downwards), remove cover of upholstery, two axial-flow type mist extractor blower fans 78 are installed in lamp plate 77 upper surfaces (or lower surface, but blower fan 78 air outlet place flange connectors protrude at this lower surface), 3 tubular electric heaters 22 or a strip cabinet frame electric heater or an annular electric heater.

In Figure 58～Figure 60, inner cover 150, trumpet flower shape outer cover 151, cover of upholstery 152, gusset, dividing plate, lamp plate 160,166, one axial-flow type fume exhausts of airstrainer blower fan 162 is installed in lamp plate upper surface or lower surface by flange, by perimeter surface or lining papers within the outer cover trumpet flower shape 151 should the surface wind direction ring 176 and lamp plate between the circumferential weld type nozzle 169 that constitutes of slit, stitching wide is 3～6mm.

In Figure 61～Figure 64, inner cover 180, elliptical horn outer cover 181, cover of upholstery 182, gusset, dividing plate, lamp plate, the outer blower fan 194 of 198, one axial flow fume exhausts of airstrainer is installed in lamp plate 190 upper surfaces or lower surface by flange, by perimeter surface or lining papers within the elliptical horn outer cover should the surface wind direction ring 199 and lamp plate between the circumferential weld type nozzle 209 that constitutes of slit, stitching wide is 3～6mm.

In Figure 65～Figure 67, inner cover 210, rose outer cover 211, gusset, dividing plate, lamp plate 220, airstrainer 226, the outer blower fan 222 of axial flow fume exhaust is installed in lamp plate upper surface or lower surface by flange, and by the circumferential weld type nozzle 229 that slit between perimeter surface within the outer cover and the lamp plate constitutes, stitching wide is 3～6mm.

In Figure 71～Figure 76, inner cover 250, cut rib cuboid outer cover 251, cut rib cuboid cover of upholstery 252,2 oil strain guards 253, four gussets 255, dividing plate 260, mist extractor flange 261, vertical element shaped as frame electric heater linear-toroidal electric heater 263, two axial-flow type fume exhaust blower fans 258 are fixed on hood-shaped (the cover mouth downwards) lamp plate 254 or lower surface by flange, and four fluid-driven fan housing blower fans 257 are installed in loam cake 259 lower surfaces, and each fluid-driven fan housing air inlet has an airstrainer 262.

At Figure 68, among Figure 89 and Figure 70, respectively tubular electric heater 243 or strip cabinet frame electric heater or annular electric heater 240 are installed in Chinese patent application and number are on 98203762.7 the air curtain smoke exhaust ventilator and constitute the fan housing smoke pumping that has electric heater in the utility model fan housing passage, it number is to constitute the fan housing smoke pumping that has electric heater in the utility model fan housing passage on 99218971.3 the air curtain type fume exhaustor that strip cabinet frame electric heater or annular electric heater 241 are installed in Chinese patent application, tubular electric heater 244 or strip cabinet frame shape electric heater or annular shape electric heater 242 are installed in Chinese patent application number for constituting the fan housing smoke pumping that has electric heater in the utility model fan housing passage on the double-layer air-flow hood ventilation apparatus of 98218879.X.

In Figure 36～Figure 39, tubular shape electric heater, by cylindrical outer casing 95, thermal insulation layer 96,1# supporting plate 102, the support that 2# supporting plate 105 and cross recess rack plate 97 constitute, become have mercy on heating wire 94 on support of individual layer helical form, and at thermal cut-off 93 of heating wire one end series connection, automatic reset switch 103 (closure when temperature is lower than definite value of other end series connection, otherwise, disconnect), thermal cut-off respectively is connected a section lead 91 with the automatic reset switch other end, is used for connecting power line, on the rack shell, the arc strip 115 that groove that the rectangular teeth 114 that following inward at both ends bending goes out constitutes and inside bending are gone into limits it along vertical, moving of transverse direction and becoming one with shell, wherein, thermal insulation layer is the tubular identical with the shell inner surface shape that make of micarex or one deck heat-resisting paint that is coated with full inner surface of outer cover.

At Figure 40～shown in Figure 43, tubular shape electric heater, 110 one-tenth left-handed helical forms of heating wire that one section two ends are linked with binding post sheet 116 in by the 3# supporting plate of having mercy on, in the opening circular hole on the internal layer electrothermal wire rack that sheet 107 and cross recess rack plate 97 constitute in the 4# supporting plate, the binding post that there is an end on the single cord of binding post at two sections two ends respectively with heating wire on, the binding post of lower end is together by tubular rivet 109,101 rivetings are in support on the sheet, 3# supporting plate left side sheet 99, right sheet 117 of 3# supporting plate and 4# supporting plate left side sheet 106, the right sheet 108 of 4# supporting plate is respectively by tubular rivet 100 rivetings sheet 116 in the 3# supporting plate, in the 4# supporting plate on the sheet 107, one section two ends be linked with binding post heating wire 94 1 ends binding post and with the binding post of the binding lead other end of internal layer heating wire 110 upper ends, by tubular rivet 111 riveting together on support, 94 one-tenth right hand helix shapes of this section heating wire left sheet 99 on support of having mercy on, 106, right sheet 105, in the opening circular hole on 108, temperature fuse 93, temperature automatic reset switch 103 respectively with remainder in, the binding post at outer heating wire two ends is by tubular rivet 112,113 rivetings fix on the rack plate, temperature automatic reset switch 103, each has the single cord 91 of binding post by tubular rivet 104 with one section one end temperature fuse 93 other ends, 92 rivetings fix on the support.

In Figure 44～Figure 55, vertical element shaped as frame electric heater, it is by straight line bar shaped frame plate 121,122 and end plate 123 form the vertical bar shaped frameworks, cover and be affixed on the vertical bar shaped framework all (comprising end plate) inner surfaces heat-resisting or fire-resistant framework interior lining panel 147 with the support chip 142 of 147 one-tenth right-angled intersections of interior lining panel (identical) with the chi structure of the two stands plate of tubular air heater, heating wire 118 in the fluting circular hole of embedding support chip top, the temperature fuse 124 of connecting with heating wire, the temperature automatic reset switch 126 of connecting with the heating wire other end, the lead of drawing of connecting with the temperature fuse and the temperature automatic reset switch other end respectively constitutes a bar shaped electric heater, selects 2～8 bar shaped air heater combined serial to become a vertical element shaped as frame electric heater according to the bar-shaped trough shape of the case of installation place.

Among Figure 56～Figure 57, the annular electric heater is by ring frame frame plate 144,145, be coupled plate 146 and be coupled to annular frame, cover and be affixed on the heat-resisting or fire-resistant framework interior lining panel 148 and the support chip 149 of annular frame inner surface, a heating wire in the fluting circular hole of embedding support chip top, a thermal cut-off of connecting with heating wire one end, an automatic reset switch of connecting with the heating wire other end, the linear-toroidal electric heater of drawing an integral body of lead formation of connecting with the thermal cut-off and the automatic reset switch other end respectively.

Figure 58～Figure 60, Figure 61～Figure 64, Figure 65～Figure 66, in, circular arc, elliptic arc and roseleaf profile arc strip cabinet frame electric heater and circular arc, elliptic arc and roseleaf profile arc ring shape electric heater, only be with aforementioned vertical element shaped as frame and linear-toroidal electric heater difference, replaced straight line bar shaped (or annular) frame plate with camber line bar shaped (or annular) frame plate, and the heat-resisting or fire-resistant framework interior lining panel that covers and be affixed on each frame inner surface accordingly.In addition, arc line shaped as frame electric heater is by representing two or four circular arc line strip cabinet frame electric heaters 168 that circular arc bar shaped electric heater combined serial forms of one in the bisection of gusset 158 place's five equilibriums or three concentric broken circle arcs of the quartering in Figure 58～60; Be to represent each two elliptic arc lines frame shape air heater 201 that elliptic arc bar shaped electric heater device 200,208 combined serial form of one by per three dotted ellipse arcs of two symmetrical center line place five equilibriums shown in Figure 63 in Figure 61～64; Be to be the roseleaf profile arc line shaped as frame electric heater 228 that eight roseleaf profile arc bar shaped electric heaters of one are in series in Figure 65～66 by every roseleaf place.

Because of above arc line shaped as frame has similar mechanical structured member and configuration relation to the vertical element shaped as frame with annular electric heating appliance with annular electric heater, for saving space, row are not schemed separately.

Strip cabinet frame or annular electric heater, heating wire or replace by the two-period form heating wire that heating wire, heat-resisting or fire-resistant or bare conductor, heating wire are connected into, or the syllogic heating wire that is connected into by heating wire, heat-resisting or fire-resistant or bare conductor, heating wire, heat-resisting or fire-resistant or bare conductor, heating wire replaces.

Identical or the contact point of the shape of cross section of strip cabinet frame and the shape of cross section of annular electric heater and installation contact position in smoke exhaust ventilator keeps sealing state, and the wind that the fan housing blower fan is blown out only flows out from the bar seam that electric heater is housed.

Claims (10)

1. the fan housing smoke exhaust ventilator that has electric heater in the fan housing passage, by inner cover, outer cover, be linked in the lamp plate of inner cover end opening and be linked in inner cover, the case that gusset between the outer cover is formed, the fume exhaust blower fan, the fan housing blower fan is formed, wherein inner cover inner chamber and inner cover are formed the fume exhaust passage, in, cavity and inner cover between the outer cover, outer cover consists of the fan housing passage, fan housing passage lower end forms nozzle ring, the fume exhaust blower fan of monomer is arranged on the inner cover top, constitute the fume exhaust system with inner cover, the fan housing blower fan (12) of monomer is bound up on the dividing plate on the fan housing vias inner walls or is bound up on the outer cover and outer cover, inner cover and lamp plate constitute the fan housing system together, perhaps the fume exhaust blower fan of disjunctor and fan housing blower fan are stretched motor by the twin shaft on the dividing plate that is bound up on the fan housing conduit wall and the fan blade that is bound up on respectively on this motor two ends shaft extension constitutes, wherein, the fan blade that is arranged in the fume exhaust passage is stretched fume exhaust blower fan and the inner cover that motor constitutes with twin shaft and is constituted the fume exhaust system, and the fan blade and the twin shaft that are arranged in the fan housing passage are stretched fan housing blower fan and the outer cover that motor constitutes, inner cover and dividing plate constitute the fan housing system together, it is characterized in that: electric heater is installed on the fan housing channel inner surface.

2. according to the fan housing smoke exhaust ventilator that has electric heater in the described fan housing passage of claim 1, it is characterized in that:

By cylindrical shell (95), thermal insulation layer (96), lateral frame plate (102), the electrothermal wire rack that longitudinal support plate (105) and cross recess rack plate (97) constitute, become have mercy on heating wire (94) in the groove on this support of individual layer helical form, the temperature fuse (93) of heating wire one end series connection therewith, a temperature automatic reset switch (103) of connecting with the heating wire other end, that connects with the temperature fuse (93) and temperature automatic reset switch (103) other end respectively draws lead (91) and the heating wire formula tubular electric heater of formation, or by cylindrical shell (95), thermal insulation layer (96), lateral frame plate left side sheet (99), sheet in the lateral frame plate (1020), the right sheet (1050) of lateral frame plate, longitudinal support plate left side sheet (106), sheet in the longitudinal support plate (107), the electrothermal wire rack that right sheet (108) of longitudinal support plate and cross recess rack plate (97) constitute, and one become the double-layer spiral shape to be coiled in internal layer heating wire (110) and outer heating wire (94) in the groove on this support, the temperature fuse (93) of heating wire one end series connection therewith, a temperature automatic reset switch (103) of connecting with the heating wire other end, that connects with the temperature fuse (93) and temperature automatic reset switch (103) other end respectively draws lead (91) and formation heating wire formula tubular electric heater, connects with dividing plate upper surface or lower surface;

Perhaps by outside bar shaped frame plate (121), the bar shaped framework that inboard bar shaped frame plate (122) and end plate (123) are formed, interior lining panel (147) and the support chip (142) that becomes right-angled intersection with interior lining panel, heating wire (118) in the fluting circular hole that embeds the support chip upper end is in line, respectively with the temperature fuse (124) of heating wire one end with the binding post connection, the heating wire other end is controlled automatic reset switch (126) with the temperature that binding post connects therewith, constitute a bar shaped electric heater with the temperature fuse (124) and temperature control automatic reset switch (126) other end with the lead of drawing that binding post connects respectively, wherein because of outside bar shaped frame plate (121), inboard bar shaped frame plate (122) is in line or circular arc line or oval camber line or roseleaf profile camber line according to the cannelure shape of the case of bar shaped electric heater installation place, corresponding formation straight line bar shaped electric heater, circular arc bar shaped electric heater, elliptic arc strip cabinet frame electric heater, roseleaf profile arc bar shaped electric heater, and 4 straight line bar shaped electric heater series connection constitute a vertical element shaped as frame electric heater, or 2～4 circular arc bar shaped electric heater series connection constitute a circular arc strip cabinet frame electric heater (168), or 2～4 elliptic arc bar shaped electric heaters elliptic arc strip cabinet frame electric heater (201) that is in series, or 8 roseleaf profile arc bar shaped electric heaters roseleaf profile arc strip cabinet frame electric heater (228) that is in series, a kind of strip cabinet frame electric heater of shape and a case of similar shape correspondingly with fan housing passage madial wall on dividing plate below air-out zone madial wall connect mutually;

Perhaps by to the similar interior annular frame plate (144) of cannelure shape of the case of installation place, exterior annular frame plate (145) and joint cover (146) looping framework, interior lining panel (148) and support chip (149), open loop heating wire (143) in the groove of embedding support chip top, the temperature fuse (93) of heating wire one end connect in series therewith, heating wire other end connect in series temperature is controlled automatic reset switch (103) therewith, respectively with temperature fuse (93) and temperature control automatic reset switch (126) other end connect in series draw lead (133), (134) constitute an annular electric heater, connect mutually with air-out zone madial wall below the dividing plate on the fan housing passage madial wall and be installed in the fan housing passage, because of interior annular frame plate (144), exterior annular frame plate (145) is with the cannelure shape of the case of installation place, and constitute linear-toroidal electric heater or circular arc annular electric heater (168) or elliptic arc annular electric heater (198) or roseleaf profile arc arc ring shape electric heater (228), a kind of annular electric heater of shape and a case of similar shape correspondingly with fan housing passage madial wall on dividing plate below the regional madial wall of air-out connect mutually.

3. according to the smoke exhaust ventilator that has electric heater in claim 1,2, the 3 described fan housing passages, it is characterized in that: a unique airstrainer (19 or 45) is arranged in the smoke exhaust ventilator that monomer fume exhaust blower fan and monomer fan housing blower fan are arranged or unique one group of airstrainer (67) identical with fan housing blower fan quantity is arranged, wherein, airstrainer (19) connects or airstrainer (45) and air intake flange coupling with the outer cover end face, or airstrainer (67) connects with the fan housing air inlet.

4. according to the smoke exhaust ventilator that has electric heater in claim 1,2, the 3 described fan housing passages, it is characterized in that: nozzle ring by within lamp plate (160) and the outer cover between the perimeter surface slit constitute, be called nature circumferential weld type nozzle (169), or nozzle ring constitutes by lamp plate (160) and by the slit between the wind direction ring (176) that is bound up on perimeter surface within the outer cover, be called band wind direction ring circumferential weld type nozzle (169), each circumferential weld type nozzle seam is wide to be 3～8mm.

5. according to claim 1,2,3, the fan housing smoke exhaust ventilator that has electric heater in the 4 described fan housing passages, it is characterized in that: 2～4 gussets are separated into identical with gusset quantity passage independently separately with the air-out zone in the fan housing passage, a through hole is arranged on the dividing plate in each passage, over against through hole, a heating wire formula tubular electric heater (22) is bound up on the upper surface of dividing plate, an axial-flow type fan housing blower fan (12) is bound up on the lower surface of dividing plate and constitutes the fan housing system, perhaps on the dividing plate in each passage a through hole is arranged, over against through hole: a heating wire formula tubular electric heater (22) connects with the lower surface of dividing plate, an axial-flow type fan housing blower fan (12) constitutes the fan housing system with connecting at the upper surface of dividing plate, perhaps on the dividing plate in each passage a through hole is arranged, over against through hole: an axial-flow type fan housing blower fan (12) connects with the lower surface of dividing plate, a heating wire formula tubular electric heater is installed in fan housing fan outlet (244) and constitutes the fan housing system, perhaps on the dividing plate in each passage a through hole is arranged, over against through hole, an axial-flow type fan housing blower fan (12) connects with the upper surface or the lower surface of dividing plate, a heating wire formula strip cabinet frame electric heater (240) or an annular electric heater (241) are bound up on the nozzle inner surface and constitute the fan housing system, perhaps on the dividing plate in each passage a through hole is arranged, over against through hole, the upper surface of a fluid-driven fan housing blower fan (257) and dividing plate connects, and a heating wire formula strip cabinet frame electric heater (240) or an annular electric heater (241) are bound up on the fan housing vias inner walls face that nozzle (264) locates and constitute the fan housing system.

6. the smoke exhaust ventilator that has electric heater in the fan housing passage according to claim 2, it is characterized in that: the thermal insulation layer (96) of heating wire formula tubular electric heater is by constituting with cylindrical shell (95) inner surface configuration, measure-alike micarex, or thermal insulation layer (96) heat-resisting or fireproof coating constitutes by the one deck that is coated with full cylindrical shell (95) inner surface.

7. the fan housing smoke exhaust ventilator that has electric heater in the fan housing passage according to claim 3, it is characterized in that: within heating wire formula strip cabinet frame electric heater or the annular electric heater liner plate (147) by be covered in heating wire formula strip cabinet frame electric heater or annular electric heater towards the surface of heating wire and with these surfaces identical outer contour shape is arranged, the micarex of size constitutes, on the interior lining panel, to on the bar shaped frame plate, rivet or solder joint place being arranged, hole than the big 3～8mm of rivet external diameter is arranged, or have a block-shaped micarex identical to cover on this interior lining panel in addition with the interior lining panel outer contour shape.

8. the smoke exhaust ventilator that has electric heater in the fan housing passage according to claim 1, it is characterized in that: two sides, the cover of upholstery top air intake mounting hole that distributing constitutes fan housing passage air inlet, or the cover of upholstery end face is connecting the air intake flange and constitutes fan housing passage air inlet and side and connecting the mist extractor outward flange and constitute fume exhaust passage exhaust outlet.

9.1,： ( 2 ) ( 3 ) ( 1 ) ( 27 ) ( 28 ) ( 1 ) ( 38 ) ( 39 ) ( 1 ) ( 57 ) ( 56 ) ( 74 ) ( 73 ) ( 151 ) ( 150 ) ( 181 ) ( 180 ) ( 211 ) ( 210 ) ( 251 ) ( 252 ) ( 250 ) 。

10. have the fan housing smoke exhaust ventilator of electric heater in the fan housing passage according to claim 1, it is characterized in that: hang and enclose in the screwed hole that is bound up on the outer cover (39).

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