CN108591095A - A kind of modified form purifying air of emergency refuge system method - Google Patents

Abstract

The invention discloses a kind of modified form purifying air of emergency refuge system methods, the modified form explosionproof direct current electronic fan used for air purification of emergency rescue system, under the action of pedestal, pedestal makes the connection of shaft and rear shell more secured, under the action of axle sleeve, axle sleeve can prevent shaft in rotation hour offset, under the action of cushion block, it can prevent pedestal from shaking in rear shell, under the action of cross bar, it can be saved with casing two fixed and prevent flabellum in rotation, the monolithic stability for the influence system that shakes, under the action of explosion-proof chamber, the destruction of the multi-thread cable of the intensity of a fire can effectively be obstructed.

Description

A kind of modified form purifying air of emergency refuge system method

Technical field

The present invention relates to air cleaner technical field, specially a kind of modified form purifying air of emergency refuge system side Method.

Background technology

In recent years, all kinds of accident of mine disaster in China happen occasionally, and after accident of mine disaster occurs, how to avoid the occurrence of great people Member's injures and deaths are problems in the urgent need to address, are arranged and use movable life-escaping capsule and refuge chamber in underground coal mine, be mine An important measure in well emergency management and rescue is reduced to the maximum extent in order to accelerate to improve China's mine emergency emergency system Causality loss and casualties, China are wideling popularize downhole safety avoiding system, and are strictly required within 3 years and cover All barghs when underground coal mine burst Gas Outburst, bump, cave in and the accidents such as fire, and lead to mine passage Block or electrical source of power power off when, in underground distress personnel cannot immediately gug escape escape danger in emergency circumstances, can quickly into Enter movable life-escaping capsule and refuge chamber waits for rescue, the safety that emergency hedge system provides life support for escape personnel is close Space is closed, existence primary condition is created, creates conditions, gains time for emergency management and rescue, as emergent danger avoiding system under shaft of coal mine Ventilation equipment, for realize facility in air purification and temperature and humidity adjustment, play a crucial role, such as application number Patent of invention for 201120415654.2 includes direct current generator, impeller, fan drum and cable, it is characterised in that：It is described straight Galvanic electricity machine is externally provided with flameproof enclosure, and the flameproof enclosure is by electric motor protecting shell and the electricity between the impeller and direct current generator Generator terminal lid forms and constitutes explosion-proof chamber, and the flameproof enclosure is welded on by connecting plate on fan drum, and the direct current generator is set In in explosion-proof chamber, and the shaft of direct current generator is connected across electric motor end cap with impeller hub, and the electric motor protecting shell is equipped with Cable leadthrough aperture for connecting power supply, the cable leadthrough aperture is equipped with the cable entry being sleeved on cable, described There is seal washer in cable entry, it is using antistatic and fire-retardant work that the cable, which uses flame retardant cable, the impeller, The molding Unitary Impeller of engineering plastics injection molding, the impeller inlet side are equipped with the afflux being fixedly connected with the fan drum Device, the stream that the current collector includes current collector shell and is welded on positioned at current collector center and by reinforcing plate on current collector shell Irdome, the current collector shell is diametrically diminishing tapered tubaeform along impeller air inlet direction, and the streamlined windscreen is diametrically Direction gradually increased hemispherical is entered the wind along impeller, the invention is although simple in structure, but there are many deficiencies and defect, existing Have in equipment, the design existing defects of motor, the connection between motor and impeller is unstable, and impeller easily shakes when motor rotates Dynamic, anti-turnover panel cannot fix motor well, and impeller is made to rub with explosion-proof chamber, reduce the service life of impeller, improve Production cost, and cable introduces between seat and explosion-proof chamber and lacks fixing device, causes cable easily to wind, in addition explosion-proof chamber Lack fixing device, motor shakes in explosion-proof chamber, easily leads to the poor contact that cable introduces seat and motor, increases dimension The working strength of personnel is repaiied, so that maintenance personal personnel is generated work fatigue, the working efficiency of maintenance personal is reduced, for these Situation, to avoid above-mentioned technical problem, it is necessory to provide a kind of modified form purifying air of emergency refuge system method to overcome The defect in the prior art.

Invention content

The purpose of the present invention is to provide a kind of modified form purifying air of emergency refuge system methods, to solve above-mentioned background The problem of being proposed in technology.

To achieve the above object, the present invention provides the following technical solutions：A kind of modified form purifying air of emergency refuge system The inner wall of method, including casing, described sleeve pipe is equipped with explosion-proof chamber, and the outer wall of the explosion-proof chamber is connected with the inner wall of casing, described The left side outer wall of casing is equipped with connecting flange, and the outer right wall of the connecting flange is connected with the left side outer wall of casing, described The left side outer wall of connecting flange is equipped with cross bar, and the outer right wall of the cross bar is connected with the left side outer wall of connecting flange, described The left side outer wall of cross bar is equipped with rear shell, and the inner wall of the rear shell is connected with the outer wall of cross bar, and the inner wall of the rear shell is equipped with Inner wall of the outer wall equipped with rear shell of pedestal, the pedestal is connected, and the inner wall of the pedestal is equipped with shaft, the outer wall of the shaft It is connected with the inner wall of pedestal, the left side outer wall of the rear shell is equipped with front housing, the outer right wall of the front housing and the left side of rear shell Outer wall is connected, and the inner wall of the front housing is equipped with axle sleeve, and the inner wall of the axle sleeve is connected with the outer wall of shaft, outside the axle sleeve Wall is connected with the inner wall of front housing, and the inner wall to get stuck is equipped with inner sleeve, and the outer wall of the inner sleeve is connected with the inner wall of front housing, institute The junction of the outer wall and front housing outer wall of stating inner sleeve is equipped with upper shield, and the inner wall of the upper shield is connected with the outer wall of front housing, described The inner wall of casing is equipped with plug, and the outer wall of the plug is connected with the inner wall of explosion-proof chamber, and the outer wall of the inner sleeve is equipped with fan Leaf, the inner wall of the flabellum are connected with the outer wall of inner sleeve, and the outer wall of the front housing is equipped with shield, and the inner wall of the shield is with before The outer wall of shell is connected, and the outer wall of the rear shell is equipped with buckle closure, and the outer wall of the buckle closure is connected with the inner wall of rear shell, the plug Top and bottom end be mounted on side plate, the outer wall of the side plate is connected with the inner wall of casing, and the outer wall of described sleeve pipe is equipped with Cuff, the inner wall of the cuff are connected with the outer wall of casing, and the inner wall of the cuff is equipped with partition board, the outer wall of the partition board with The inner wall of cuff is connected, and the inner wall of the cuff is equipped with wire lead slot, and the outer wall of the wire lead slot is connected with the inner wall of partition board.

Preferably, the outer right wall of the cuff is equipped with sleeve, outside the left side outer wall of the sleeve and the right side of cuff Wall is connected, and the right side of the partition board is equipped with liner, and the outer wall of the liner is connected with the inner wall of sleeve, and the inner wall of the liner is set There are blob of viscose, the outer wall of the blob of viscose to be connected with the inner wall of liner, the outer right wall of the blob of viscose is equipped with hoop lid, the hoop lid Left side outer wall is connected with the outer right wall of liner, and the outer right wall of the hoop lid is equipped with end cap, the inner left wall of the end cap It is connected with the outer right wall of hoop lid.

Preferably, the outer wall of the pedestal is equipped with cushion block, and the outer wall of the cushion block is connected with the inner wall of rear shell.

Preferably, the inner wall of the front housing and the junction of outer wall of inside race are equipped with cushion rubber, the inner wall of the cushion rubber with it is interior The outer wall of set is connected.

Preferably, the inner wall of the upper shield is equipped with adhesive tape, and the outer wall of the adhesive tape is connected with the inner wall of upper shield.

Compared with prior art, the beneficial effects of the invention are as follows：

1. the modified form explosionproof direct current electronic fan used for air purification of emergency rescue system, passes through front housing, rear shell and axis Cooperation between frame, under the action of axle sleeve, front housing assembles a closed space with rear shell, and then is the stable operation of shaft Good running environment is provided, the broken ring that explosion time countershaft occurs is avoided.

2. the modified form explosionproof direct current electronic fan used for air purification of emergency rescue system, under the action of pedestal, axis Frame makes the connection of shaft and rear shell more secured, and under the action of axle sleeve, axle sleeve can prevent shaft from rotating hour offset, It under the action of cushion block, can prevent pedestal from shaking in rear shell, under the action of cross bar, can save and be fixed simultaneously with casing two And preventing flabellum in rotation, the monolithic stability for the influence system that shakes can be obstructed effectively under the action of explosion-proof chamber The destruction of the multi-thread cable of the intensity of a fire.The modified form explosionproof direct current electronic fan used for air purification of emergency rescue system.

3. the modified form explosionproof direct current electronic fan used for air purification of emergency rescue system, under the action of wire lead slot, Cable tangled up and knotted except motor can be prevented, under the action of plug, avoids that cable is long to be caused to waste, overcomes tradition Connection between the motor and impeller of air purification explosion-proof direct-current electric fan is unstable, and impeller easily occurs when motor rotates It shakes, anti-turnover panel cannot fix motor, impeller is made to rub with explosion-proof chamber well, reduce the service life of impeller, improve Production cost.

4. the modified form explosionproof direct current electronic fan used for air purification of emergency rescue system, cable introduces seat and explosion-proof chamber Between lack fixing device, cause cable easily to wind, in addition explosion-proof chamber lacks fixing device, and motor occurs in explosion-proof chamber It shakes, easily leads to the poor contact that cable introduces seat and motor, increase the working strength of maintenance personal, easily make maintenance personal people Member generates work fatigue, and the shortcomings that reducing the working efficiency of maintenance personal, it is empty to overcome existing modified form emergency hedge system Gas explosion-proof direct-current electric fan for purifying carries out the adjusting processing of the purification and humidity of air by explosion-proof chamber and motor, practical The shortcomings that having a single function improves the installation effectiveness of modified form explosionproof direct current electronic fan used for air purification of emergency rescue system And service life, avoid explosion-proof chamber and lack fixing device, motor shakes in explosion-proof chamber, easily lead to cable introduce seat with The poor contact of motor, increases the working strength of maintenance personal, and maintenance personal personnel is easily made to generate work fatigue, reduces repair The shortcomings that working efficiency of personnel.

5. the modified form explosionproof direct current electronic fan used for air purification of emergency rescue system, existing modified form are promptly kept away More approvals can be commercially available in dangerous system air explosion-proof direct-current electric fan for purifying, and it is urgent to improve modified form The product quality of avoiding system air purification explosion-proof direct-current electric fan, saves the purchase cost of user, avoids The wasting of resources of modified form explosionproof direct current electronic fan used for air purification of emergency rescue system is suitble to promote the use of.

Description of the drawings

Fig. 1 is the structural diagram of the present invention；

Fig. 2 be the front housing of Fig. 1, shaft and pedestal side cutaway view；

Fig. 3 is the side cutaway view of the side plate of Fig. 1, plug and cuff；

The side cutaway view of liner, blob of viscose and hoop lid that Fig. 4 is Fig. 1.

In figure：1, casing, 2, explosion-proof chamber, 3, connecting flange, 4, cross bar, 5, rear shell, 6, shaft, 7, pedestal, 8, cushion block, 9, Front housing, 10, axle sleeve, 11, cushion rubber, 12, inner sleeve, 13, upper shield, 14, adhesive tape, 15, flabellum, 16, shield, 17, buckle closure, 18, side plate, 19, plug, 20, cuff, 21, partition board, 22, sleeve, 23, liner, 24, blob of viscose, 25, hoop lid, 26, end cap, 27, wire lead slot.

Specific implementation mode

Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.

- 4 are please referred to Fig.1, the present invention provides a kind of technical solution：A kind of modified form purifying air of emergency refuge system side Method, including casing 1, for installing shaft 6 and pedestal 7, the inner wall of casing 1 is equipped with explosion-proof chamber 2, for preventing intensity of a fire countershaft 6 It causing to damage with cable, the outer wall of explosion-proof chamber 2 is connected with the inner wall of casing 1, and the left side outer wall of casing 1 is equipped with connecting flange 3, It is connected with the left side outer wall of casing 1 for connecting simultaneously fixed sleeving 1, the outer right wall of connecting flange 3, the left side of connecting flange 3 Outer wall is equipped with cross bar 4, and for installing and fixing rear shell 5, the outer right wall of cross bar 4 is connected with the left side outer wall of connecting flange 3, The left side outer wall of cross bar 4 is equipped with rear shell 5, and for installing and fixing pedestal 7, the inner wall of rear shell 5 is connected with the outer wall of cross bar 4, The inner wall of rear shell 5 is equipped with pedestal 7, and for installing and fixing shaft 6, the outer wall of pedestal 7 is equipped with cushion block 8, is used for fixing axle The outer wall of frame 7, cushion block 8 is connected with the inner wall of rear shell 5, and inner wall of the outer wall equipped with rear shell 5 of pedestal 7 is connected, the inner wall peace of pedestal 7 Equipped with shaft 6, for driving flabellum 15 to rotate, the outer wall of shaft 6 is connected with the inner wall of pedestal 7, the left side outer wall installation of rear shell 5 There is front housing 9, for installing and fixing shaft 6, the inner wall of front housing 9 is equipped with cushion rubber 11 with the junction of 12 outer wall of inner sleeve, is used for Keep flabellum 15 and the connection of shaft 6 more secured, the inner wall of cushion rubber 11 is connected with the outer wall of inner sleeve 12, the outer right wall of front housing 9 It is connected with the left side outer wall of rear shell 5, the inner wall of front housing 9 is equipped with axle sleeve 10, for keeping shaft 6 and the connection of front housing 9 more firm Gu the inner wall of axle sleeve 10 is connected with the outer wall of shaft 6, the outer wall of axle sleeve 10 is connected with the inner wall of front housing 9, get stuck 9 inner wall peace Equipped with inner sleeve 12, for connecting for keeping front housing 9 and the connection of flabellum 15 more secured, the outer wall of inner sleeve 12 is interior with front housing 9 Wall is connected, and the outer wall of inner sleeve 12 is equipped with upper shield 13 with the junction of 9 outer wall of front housing, for connecting and fixing inner sleeve 12, upper shield 13 inner wall is equipped with adhesive tape 14, for keeping inner sleeve 12 and the connection of front housing 9 more secured, outer wall and the upper shield 13 of adhesive tape 14 Inner wall is connected, and the inner wall of upper shield 13 is connected with the outer wall of front housing 9, and the inner wall of casing 1 is equipped with plug 19, for installing and fixing The outer wall of cable, plug 19 is connected with the inner wall of explosion-proof chamber 2, and the outer wall of inner sleeve 12 is equipped with flabellum 15, for empty in mine Gas purifies, and the inner wall of flabellum 15 is connected with the outer wall of inner sleeve 12, and the outer wall of front housing 9 is equipped with shield 16, for preventing explosion time To the damage that flabellum 15 is brought, the inner wall of shield 16 is connected with the outer wall of front housing 9, and the outer wall of rear shell 5 is equipped with buckle closure 17, is used for The bottom of rear shell 5 is sealed, the outer wall of buckle closure 17 is connected with the inner wall of rear shell 5, and the top and bottom end of plug 19 are respectively mounted There is side plate 18, for connecting and fixing cuff 20, the outer wall of side plate 18 is connected with the inner wall of casing 1, and the outer wall of casing 1 is equipped with Cuff 20, for installing and fixing partition board 21, the outer right wall of cuff 20 is equipped with sleeve 22, for protecting cable, And cable winds are prevented, the left side outer wall of sleeve 22 is connected with the outer right wall of cuff 20, and the right side of partition board 21 is equipped with liner 23, for make sleeve 22 and pad 23 connection it is more secured, pad 23 outer wall and be connected with the inner wall of sleeve 22, pad 23 Inner wall is equipped with blob of viscose 24, keeps the connection of cable and sleeve 22 more secured with increase frictional force, outer wall and the liner 23 of blob of viscose 24 Inner wall be connected, the outer right wall of blob of viscose 24 is equipped with hoop lid 25, for by the edge seal of bushing 23 and sleeve 22, hoop lid 25 Left side outer wall with liner 23 outer right wall be connected, bind round lid 25 outer right wall end cap 26 is installed, for preventing wire lead slot Enter foreign matter in 27, the inner left wall of end cap 26 is connected with the outer right wall of hoop lid 25, the outer wall of the inner wall and casing 1 of cuff 20 It is connected, the inner wall of cuff 20 is equipped with partition board 21, is used for fixed cable, prevents cable winds, outer wall and the cuff 20 of partition board 21 Inner wall be connected, the inner wall of cuff 20 is equipped with wire lead slot 27, for placing cable, cable is avoided to be externally wrapped with overlap joint, lead The outer wall of slot 27 is connected with the inner wall of partition board 21, for keeping the connection of cable and partition board 21 more secured.

A kind of modified form purifying air of emergency refuge system method, the modified form purifying air of emergency refuge system flame proof Type direct-current electric fan by casing 1, explosion-proof chamber 2, connecting flange 3, cross bar 4, rear shell 5, shaft 6, pedestal 7, cushion block 8, front housing 9, Axle sleeve 10, cushion rubber 11, inner sleeve 12, upper shield 13, adhesive tape 14, flabellum 15, shield 16, buckle closure 17, side plate 18, plug 19, cuff 20, The parts composition such as partition board 21, sleeve 22 and liner 23, copes with the main fit dimension of parts before assembling, especially interference is matched It closes size and phase closing precision to be checked, when Same Part fasten with more than one piece screw (bolt), each screw (bolt) needs intersection, right Claim, gradually, uniformly tighten, using angle grinder and file to casing 1, explosion-proof chamber 2, connecting flange 3, cross bar 4, rear shell 5, shaft 6, Pedestal 7, cushion block 8, front housing 9, axle sleeve 10, cushion rubber 11, inner sleeve 12, upper shield 13, adhesive tape 14, flabellum 15, shield 16, buckle closure 17, side The burr on the surfaces and junction such as plate 18, plug 19, cuff 20, partition board 21, sleeve 22 and liner 23, then in its surface and company It meets place and smears antirust paint, firm welding must not have rosin joint solder skip phenomenon, all parts that need to be cleaned with kerosene, rolling bearing vapour Oil cleaning, piece surface are not allow for any sundries, and the polishing of the external portions such as rack, turntable surrounding, compactor bearing, scraped finish are greasy Son, surface spraying designated color, screw rod, connecting rod, pull rod, bar, head cover etc., all oxidations (nigrescence) of all positioning compression devices It handles, at each cooperation, at sealing, screw connection grease lubrication, green surface applies grey paint, inner surface coating Red Paint, adjustment rotation is flexibly light, positions reliable clamping, is fixed on ground with expansion bolt, tooling manufacturer is responsible for installation It is adjusted to normal, producing and using must ensure exchange up and down when stacking, and diagonal line deviation within ± 3mm, make at antirust by postwelding Blue wash paints reason again, and " factory's name ", " tooling number " and " case number (CN) " are sprayed with white paint in shown position, and font is boldface type, In addition to front, left and right side and back 1.5mm thickness hot plate sealings, bottom surface are welded with 3.0mm thickness hot plates, remaining 50X50X4.0 square Pipe, should remove the impurity such as weldment surface iron rust, greasy dirt, moisture before weldering, welding rod has to dry, and air immerses welding in order to prevent Area and cause stomata, crackle, reduce joint performance, should use short arc welding, heat affected area should not mistake in high-temperature residence time as possible It is long, in order to avoid coarse grains, when welding fillet weld, dock first of weld seam of multilayer welding and mono-layer single-face weld seam to avoid it is deep and narrow Groove type when multilayer welding, should continuously be soldered last layer of weld seam, every layer of weld seam to prevent lack of penetration and slag inclusion defect The thickness of metal is not more than 5mm, and when the rigidity of weldment increases, the crackle tendency of weldment is consequently increased, therefore it is big to weld rigidity Weldment preferably use weld preheating and postwelding eliminate stress heat treatment measure dry after, casing 1 and connecting flange 3 are connected It connects, explosion-proof chamber 2 is equipped in casing 1, explosion-proof chamber 2 ignites gas after capable of preventing motor from exploding, and can obstruct fire Will definitely cable fusing, shaft 6 is installed in the front housing 9, shaft 6 is fixed in front housing 9 using axle sleeve 10, and using rear shell 5 with Front housing 9 is connected and fixed, and so that the shaft 6 in front housing 9 is connect with the pedestal 7 in rear shell 5 and under the action of cushion block 8, after being fixed on In shell 5, flabellum 15 is fixed in shaft 6 using inner sleeve 12 and cushion rubber 11, shield 16 is installed in the outer wall of front housing 9, will be fanned Leaf 15 is mounted in shield 16 so that flabellum 15 will not be damaged in generation explosion time, and be used between flabellum 15 and front housing 9 Upper shield 13 and adhesive tape 14 are attached fixation so that flabellum 15 will not in use rub with front housing 9, cause 15 He of flabellum Cuff 20 is fixed on the outer wall of casing 1 using side plate 18 by the abrasion of front housing 9, and plug 19 is installed in the inside of casing 1 so that Cable can be connect by plug 19 with flabellum 15 and motor, the tangled up and knotted that avoids cable long in wire lead slot 27, be drawn simultaneously Wire casing 27 can also stop damage of the explosion to cable, complete the modified form purifying air of emergency refuge system flame-proof type direct current The assembly working of dynamic fan.

In the description of the present invention, it is to be understood that, term " coaxial ", " bottom ", " one end ", " top ", " middle part ", The orientation or positional relationship of the instructions such as " other end ", "upper", " side ", " top ", "inner", " front ", " center ", " both ends " is It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than instruction or dark Show that signified device or element must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as pair The limitation of the present invention.

In the present invention unless specifically defined or limited otherwise, term " installation ", " setting ", " connection ", " fixation ", Terms such as " being screwed on " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be with It is mechanical connection, can also be electrical connection；It can be directly connected, can also can be indirectly connected through an intermediary two The interaction relationship of connection or two elements inside a element, unless otherwise restricted clearly, for the common of this field For technical staff, the specific meanings of the above terms in the present invention can be understood according to specific conditions.

It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace And modification, the scope of the present invention is defined by the appended.

Claims (5)

1. a kind of modified form purifying air of emergency refuge system method, it is characterised in that：The main of reply parts is matched before assembly Size is closed, especially size is interference fitted and phase closing precision is checked, when Same Part is fastened with more than one piece screw (bolt), respectively Screw (bolt) is needed to intersect, symmetrically, gradually, uniformly be tightened, using angle grinder and file to casing 1, explosion-proof chamber 2, connecting flange 3, cross bar 4, rear shell 5, shaft 6, pedestal 7, cushion block 8, front housing 9, axle sleeve 10, cushion rubber 11, inner sleeve 12, upper shield 13, adhesive tape 14, flabellum 15, the hair on the surfaces and junction such as shield 16, buckle closure 17, side plate 18, plug 19, cuff 20, partition board 21, sleeve 22 and liner 23 Then thorn smears antirust paint on its surface and junction, firm welding must not have rosin joint solder skip phenomenon, all parts that need to use coal Oil cleaning, rolling bearing are cleaned with gasoline, and piece surface is not allow for any sundries, rack, turntable surrounding, compactor bearing etc. External portion polishing, scraped finish putty, surface spraying designated color, screw rod, connecting rod, pull rod, bar, head cover etc., all positioning pressures All oxidation (nigrescence) is handled tight device, and at each cooperation, at sealing, screw connection grease lubrication, green surface applies Grey is painted, inner surface coating Red paint, and flexible light, the positioning reliable clamping of adjustment rotation is fixed on ground with expansion bolt, Tooling manufacturer is responsible for mounting and adjusting to normal, and producing and using must ensure exchange up and down when stacking, diagonal line deviation ± Within 3mm, postwelding makees antirust treatment, and blue wash paints again, and " factory's name ", " tooling number " and " case number (CN) " is with white paint in diagram position Spraying is set, font is boldface type, and in addition to front, left and right side and back 1.5mm thickness hot plate sealings, bottom surface are welded with the thick heat of 3.0mm Plate, remaining 50X50X4.0 quarter bend should remove the impurity such as weldment surface iron rust, greasy dirt, moisture before weldering, welding rod has to dry, and is It prevents air from immersing welding section and causing stomata, crackle, reduces joint performance, should use the short arc welding, heat affected area to exist as possible High-temperature residence time is unsuitable long, in case coarse grains dock first of the weld seam and single layer list of multilayer welding when welding fillet weld Face weld seam will avoid deep and narrow groove type, to prevent lack of penetration and slag inclusion defect, when multilayer welding, should continuously be soldered last One layer of weld seam, the thickness of every layer of weld metal are not more than 5mm, and when the rigidity of weldment increases, the crackle tendency of weldment is also therewith Increase, therefore after the rigid big weldment of welding preferably uses weld preheating and the heat treatment measure of postwelding elimination stress to dry, it will cover Pipe 1 is connect with connecting flange 3, and explosion-proof chamber 2 is equipped in casing 1, and explosion-proof chamber 2 draws gas after capable of preventing motor from exploding Combustion, and the intensity of a fire can be obstructed, cable fuses, shaft 6 is installed in front housing 9, shaft 6 is fixed on front housing 9 using axle sleeve 10 It is interior, and be connected and fixed using rear shell 5 and front housing 9, so that the shaft 6 in front housing 9 is connect with the pedestal 7 in rear shell 5 and in cushion block 8 It under effect, is fixed in rear shell 5, flabellum 15 is fixed in shaft 6 using inner sleeve 12 and cushion rubber 11, pacify in the outer wall of front housing 9 Equipped with shield 16, flabellum 15 is mounted in shield 16 so that flabellum 15 will not be damaged in generation explosion time, and flabellum 15 Fixation is attached using upper shield 13 and adhesive tape 14 between front housing 9 so that flabellum 15 will not in use rub with front housing 9 It wipes, causes the abrasion of flabellum 15 and front housing 9, cuff 20 is fixed on to the outer wall of casing 1 using side plate 18, in the inside of casing 1 Plug 19 is installed so that cable can be connect by plug 19 with flabellum 15 and motor, avoid cable long in wire lead slot 27 Tangled up and knotted, while wire lead slot 27 can also stop damage of the explosion to cable, and it is net to complete the modified form air of emergency refuge system The assembly working of change explosion-proof direct-current electric fan.

2. a kind of modified form purifying air of emergency refuge system method according to claim 1, it is characterised in that：The hoop The outer right wall of set (20) is equipped with sleeve (22), the outer right wall phase of the left side outer wall and cuff (20) of the sleeve (22) Even, the right side of the partition board (21) is equipped with liner (23), and the outer wall of the liner (23) is connected with the inner wall of sleeve (22), described The inner wall for padding (23) is equipped with blob of viscose (24), and the outer wall of the blob of viscose (24) is connected with the inner wall of liner (23), the blob of viscose (24) outer right wall is equipped with hoop lid (25), and the left side outer wall of the hoop lid (25) is connected with the outer right wall of liner (23), The outer right wall of the hoop lid (25) is equipped with end cap (26), and the inner left wall of the end cap (26) is covered with hoop outside the right side of (25) Wall is connected.

3. a kind of modified form purifying air of emergency refuge system method according to claim 1, it is characterised in that：The axis The outer wall of frame (7) is equipped with cushion block (8), and the outer wall of the cushion block (8) is connected with the inner wall of rear shell (5).

4. a kind of modified form purifying air of emergency refuge system method according to claim 1, it is characterised in that：Before described The inner wall of shell (9) is equipped with cushion rubber (11), inner wall and the inner sleeve (12) of the cushion rubber (11) with the junction of inner sleeve (12) outer wall Outer wall be connected.

5. a kind of modified form purifying air of emergency refuge system method according to claim 1, it is characterised in that：The set The inner wall of lid (13) is equipped with adhesive tape (14), and the outer wall of the adhesive tape (14) is connected with the inner wall of upper shield (13).