CN205640204U - Advance air outlet means and have this gas chamber that advances air outlet means - Google Patents

Abstract

The utility model provides an advance air outlet means and have this gas chamber that advances air outlet means, it includes to advance air outlet means: the first pipeline of level setting and the second pipeline of vertical setting, the lower extreme opening of second pipeline with the one end opening intercommunication of first pipeline forms and advances air outlet channel, the vertical twist blade that sets up in the second pipeline, the twist blade includes the blade body, the blade body reverses through its middle part relatively the both sides of blade body correspond formation and are an airflow channel and the 2nd airflow channel that the heliciform rises. The gas chamber is personally experienced sth. Part of the body and is advanced air outlet means including the cabinet that has inside cavity. The utility model discloses can reduce the coal gas flow thigh and push up eccentric impact the that the piston caused to the cabinet, avoid rotation, the drift of cabinet top piston.

Description

A kind of air inlet-outlet device and the gas chamber with this air inlet-outlet device

Technical field

This utility model relates to coal gas supply and the technical field reclaimed in metallurgy industry, particularly to one turnover gas dress Put and there is cabinet limit and enter the gas chamber of air outlet structure.

Background technology

Metallurgy industry energy resource consumption is big, easily pollutes environment.Along with the production-scale quick growth of iron and steel enterprise, more than needed Coal gas constantly increases, and gas chamber plays coal gas trade trend balance in coal gas system, stablizes the effect of ductwork pressure, extensively General it is applied to coal-gas recovering and feed system.In prior art, the pressure oscillation of gas chamber turnover pipe network is relatively big, typically More than 3%, requiring that coal gas fluctuates within ± 3% in actual production, existing gas chamber is by gas chamber sidewall, coal gas Cabinet base plate and cabinet top piston composition hermetic container, utilize the cabinet top piston with constant weight to maintain the inside pressure of gas chamber Power fluctuates in smaller range.

The gas chamber that gas storage pressure is relatively low, as polygon thin oil sealing gas cabinet, film phonograph seal moulded coal gas holder and wet type cabinet are logical Air outlet structure is entered, to reduce investment outlay frequently with cabinet limit.The gas chamber that gas storage pressure is higher, as can grand high gas chamber, by , piston speed big in piston mass is fast, general uses Gui Di center to enter air outlet structure.

Use cabinet limit to enter the gas chamber air inlet-outlet device of air outlet structure, horizontally enter in gas chamber including outside gas chamber The level of the heart passes in and out feed channel and is vertically arranged in gas chamber center the air-flow guiding pipe connected with horizontal inlet and outlet piping. It is provided with manhole, in order to pipeline is checked, ties up on the pipeline section being positioned at outside gas chamber in level turnover feed channel Repair.Gas chamber turnover feed channel is generally located on cabinet sidewall, the pipeline with a uniform section coal gas is introduced coal gas In cabinet, owing to the air-flow of coal gas air-flow flows into cabinet inner sealing space, along with the increase of tolerance, cabinet top piston rises, Air-flow forms cyclone in gas chamber simultaneously, causes cabinet top piston pressure skewness, is susceptible to bias and drift, Cause the piston lifting of cabinet top not smooth, even occur resistance excessive and the situation of clamping stagnation, cause the unexpected rising of cabinet top piston Or fall, in causing gas chamber, pressure oscillation is relatively big, impacts production.

Utility model content

For solving above-mentioned technical problem, the utility model proposes a kind of air inlet-outlet device and gas chamber, air inlet-outlet device The flow direction of air-flow can be guided, the flow velocity of buffer gas flow；Thus gas chamber can reduce what cabinet top piston was caused by Gas Flow stock Eccentric impact, it is to avoid the rotation of cabinet top piston, drift.

The utility model proposes a kind of air inlet-outlet device, described air inlet-outlet device includes:

Horizontally disposed first pipeline and the second pipe being vertically arranged, the lower ending opening of described second pipe and described the The one end open connection of one pipeline is formed into outlet passageway；

Being vertically arranged a twist blade in described second pipe, described twist blade includes blade body, described blade Body is relative torsion in the middle part of it, is correspondingly formed the first air-flow risen in the shape of a spiral in the both sides of described blade body and leads to Road and the second gas channel.

As a kind of enforceable mode, described blade body is about described blade body axis pair vertically Claiming, the cross section of described blade body is rectangle, and described blade body is identical in the length of each cross section, or institute State blade body and be gradually reduced from top to bottom in the length of each cross section or increase.

As a kind of enforceable mode, the thickness of described blade body keeps blade body consistent, described from top to bottom Thickness be gradually reduced from top to bottom, or the thickness of described blade body is gradually increased from top to bottom.

Further, described twist blade is fixedly installed in described second pipe, on the lower surface of described twist blade The dead in line of centrage along its length and described first pipeline or intersect.

Further, horizontally set one bar shaped fixed plate in described second pipe, on the inwall of described second pipe Arranging locating slot, the two ends of described bar shaped fixed plate are fixed in described locating slot；

Described bar shaped fixed plate centrally along vertically offering hole, location, the center of the upper surface of described twist blade is fixing to be set Putting a limited post protruded out upward, described limited post coordinates clamping with hole, described location.

Further, any during the material of described twist blade is lucite, metal, pottery, rubber and plastics A kind of.

Further, the shape phase of the shape of the lower surface of described bar shaped fixed plate and the upper surface of described twist blade Coupling, the lower surface of described bar shaped fixed plate is pressed on the upper surface of described twist blade.

Further, described locating slot is the groove on two inwalls being symmetricly set on described second pipe, described The two ends of bar shaped fixed plate are clamped in each described groove respectively, or described locating slot is the week along described second pipe Annular groove on the inwall being arranged on described second pipe, locking member is passed through at the two ends of described bar shaped fixed plate respectively It is clamped in described annular groove.

As a kind of enforceable mode, the cross section in hole, described location is polygon.

Further, described blade body axis vertically and the dead in line of described second pipe.

Further, the windup-degree of described blade body is more than 90 degree and less than 180 degree.

This utility model also proposes a kind of gas chamber, and described gas chamber includes cabinet and the turnover gas dress with internal cavities Putting, described air inlet-outlet device is above-mentioned air inlet-outlet device；

First pipe level runs through the bottom sidewall of described cabinet, and its two ends lay respectively at outside described cabinet and described cabinet In；Second pipe is arranged in described internal cavities, under described second pipe along the axis vertical of described internal cavities End opening is formed into outlet passageway with described first pipeline open-ended connection in described cabinet.

This utility model having the beneficial effects that compared to prior art: air inlet-outlet device of the present utility model can guide gas The flow direction of stream, the flow velocity of buffer gas flow；Gas chamber of the present utility model make the Gas Flow stock-traders' know-how of entrance internal cavities cross into The twist blade arranged in air-out apparatus, utilizes the eddy flow steering-effecting of twist blade, makes Gas Flow stock from second pipe Upper end open be interfered when flowing out, the flow direction of Gas Flow stock is directed to vertical direction, it is to avoid to cabinet sidewall Impact.Meanwhile, twist blade has disperseed Gas Flow stock effectively, Gas Flow stock is created buffering, makes Gas Flow Stock can be evenly discharged in internal cavities, thus avoids the local assault to cabinet top piston of the Gas Flow stock, decreases The eccentric impact to cabinet top piston of the Gas Flow stock, makes cabinet top piston pressure experienced be evenly distributed, it is to avoid cabinet top piston Rotate, drift about or clamping stagnation, it is achieved that the self-balancing of cabinet top piston and dynamic equilibrium.

Simple in construction of the present utility model, the processing of twist blade, manufactures and installs the easiest, makes gas chamber to hold Continue and constantly store coal gas, reduce production cost, it is ensured that the quality of coal gas conveying.

Accompanying drawing explanation

Fig. 1 is the overall structure schematic diagram of gas chamber of the present utility model；

Fig. 2 is the schematic front view of the air inlet-outlet device embodiment one of gas chamber of the present utility model；

Fig. 3 is the schematic top plan view of the air inlet-outlet device embodiment one of gas chamber of the present utility model；

Fig. 4 is the schematic front view of the twist blade embodiment one of gas chamber of the present utility model；

Fig. 5 is the schematic top plan view of the twist blade embodiment one of gas chamber of the present utility model；

Fig. 6 is the schematic top plan view of the twist blade embodiment two of gas chamber of the present utility model；

Fig. 7 is the schematic front view of the twist blade embodiment three of gas chamber of the present utility model；

Fig. 8 is the schematic top plan view of the twist blade embodiment three of gas chamber of the present utility model；

Fig. 9 is the schematic front view of the twist blade embodiment four of gas chamber of the present utility model；

Figure 10 is the schematic top plan view of the twist blade embodiment four of gas chamber of the present utility model；

Figure 11 is the schematic top plan view of the air inlet-outlet device embodiment two of gas chamber of the present utility model；

Figure 12 is the schematic top plan view of the air inlet-outlet device embodiment three of gas chamber of the present utility model；

Figure 13 is the schematic top plan view of the air inlet-outlet device embodiment four of gas chamber of the present utility model；

Figure 14 is the schematic top plan view of the air inlet-outlet device embodiment five of gas chamber of the present utility model；

Figure 15 is the close-up schematic view of Fig. 2；

Figure 16 is the schematic top plan view of Figure 15；

Figure 17 is the structural representation of the bar shaped fixed plate of gas chamber of the present utility model；

Figure 18 is the bar shaped fixed plate annexation schematic diagram in installment state of gas chamber of the present utility model；

Figure 19 is the close-up schematic view in Figure 18 at A.

Reference:

10-cabinet；20-air inlet-outlet device；22-the first pipeline；24-second pipe；

26-twist blade；262-limited post；The lower surface of 264-twist blade；The upper surface of 266-twist blade；

32-bar shaped fixed plate；322-positions hole；34-groove.

Detailed description of the invention

Below in conjunction with accompanying drawing, to this utility model, above-mentioned and other technical characteristic and advantage are carried out clearly and completely Describe, it is clear that described embodiment is only section Example of the present utility model rather than whole embodiment.

Refer to shown in Fig. 1, Fig. 2 and Fig. 3, the utility model proposes a kind of air inlet-outlet device 20, set including level The first pipeline 22 put and the second pipe 24 being vertically arranged, the lower ending opening of second pipe 24 and the first pipeline 22 One end open connection formed into outlet passageway.As in figure 2 it is shown, be vertically arranged a torsion leaf in second pipe 24 Sheet 26, twist blade 26 includes blade body, and blade body is relative torsion in the middle part of it, in the both sides of blade body It is correspondingly formed the first gas channel and the second gas channel risen in the shape of a spiral.

This utility model also proposes a kind of gas chamber, including cabinet 10 and the above-mentioned turnover gas dress with internal cavities Put 20.First pipeline 22 level runs through the bottom sidewall of cabinet 10, and the two ends of the first pipeline 22 lay respectively at cabinet Outside 10 and in cabinet 10；Second pipe 24 is arranged in internal cavities along the axis vertical of internal cavities, the second pipe Lower ending opening and the open-ended connection in cabinet 10 of first pipeline 22 in road 24 are formed into outlet passageway, are used for The circulation of coal gas.

Air inlet-outlet device can guide the flow direction of air-flow, the flow velocity of buffer gas flow.The air-flow warp entered from the first pipeline 22 Spiral first gas channel and or the second gas channel enter in second pipe 24, flow velocity is buffered.? In gas chamber, enter the Gas Flow stock of the internal cavities of cabinet 10, the twist blade arranged in second pipe 24 26, utilize the eddy flow steering-effecting of twist blade 26, make Gas Flow stock when the upper end open of second pipe 24 flows out It is interfered, the flow direction of Gas Flow stock is directed to vertical direction, it is to avoid impact to cabinet sidewall.Meanwhile, turn round Rotating vane sheet 26 has bigger surface area, and Gas Flow stock can be diffused in larger scope, and twist blade 26 is effectively Disperse Gas Flow stock, Gas Flow stock created buffering, made Gas Flow stock can be evenly discharged in internal cavities, Thus avoid the local assault to cabinet top piston of the Gas Flow stock, decrease the eccentric punching to cabinet top piston of the Gas Flow stock Hit, make cabinet top piston pressure experienced be evenly distributed, it is to avoid rotation, drift or the clamping stagnation of cabinet top piston, it is achieved that cabinet The self-balancing of top piston and dynamic equilibrium.

Refer to shown in Fig. 4 and Fig. 5, say, that twist blade 26 by a blade body in flat through turning round The transformation of ownership becomes, and blade body is reversed around blade body axis vertically.As shown in Figure 4, twist blade 26 wraps Include the upper end pair of the upper diversion division being sequentially connected with from top to bottom and lower diversion division, the lower end of upper diversion division and lower diversion division Connect, thus form the first gas channel and the second gas channel, first air-flow of up/down perforation in the both sides of blade body Passage and the second gas channel rise the most twist.Upper diversion division is the inverted triangle shown in Fig. 4, under lead Stream portion is the upright triangle shown in Fig. 4, and the upper end of the lower end of upper diversion division and lower diversion division is at upright triangle Apex (middle part of twist blade 26) the smooth-going docking of shape, blade body is around blade body axle vertically Line the most in the same direction (clockwise or counterclockwise) reverse formed twist blade 26, make the first gas channel and Second gas channel can guide air-flow swimmingly.

As a kind of enforceable mode, blade body about blade body axisymmetrical vertically, blade this The cross section of body is rectangle；As it is shown in figure 5, in the embodiment one of twist blade 26, blade body is at each horizontal stroke The length in cross section is identical, and blade body is reversed the most clockwise, forms the most isometrical blade construction；Refer to Shown in Fig. 6, in the embodiment two of twist blade 26, blade body is identical in the length of each cross section, but leaf Sheet body reverses the most counterclockwise, forms the most isometrical blade construction.Or blade body is at each cross section Length is gradually reduced from top to bottom or increases, and refers to shown in Fig. 7 and Fig. 8, in the embodiment three of twist blade 26 In, blade body is gradually increased from top to bottom in the length of each cross section, and blade body is reversed the most counterclockwise, Form upper and lower waney blade construction.Refer to shown in Fig. 9 and Figure 10, in the embodiment four of twist blade 26, Blade body is gradually increased from top to bottom in the length of each cross section, and blade body is reversed the most counterclockwise, is formed Upper and lower waney blade construction.

When designing the threedimensional model of twist blade 26, first one rectangle of drafting, and find out the perpendicular bisector of rectangle, this square Shape is along perpendicular bisector upwards uniform speed scanning, and this rectangle at the uniform velocity rotates around perpendicular bisector simultaneously, thus obtains twist blade 26. Simple in construction of the present utility model, the processing of twist blade 26, manufacture and install the easiest, low cost, permissible It is widely popularized utilization, also can easily the structure of twist blade 26 be attached in existing gas chamber, it is not necessary to change Enter other structures of gas chamber, conveniently promote the use of.Gas chamber of the present utility model decreases cabinet top piston and drifts about With the probability of clamping stagnation so that gas chamber can store coal gas continuously so that output coal gas cost reduce, Ensure that the quality that coal gas carries.

More preferably, blade body, when the length of each cross section is gradually increased from top to bottom, has optimal flow-disturbing effect, Twist blade 26 forms little big blade construction under diameter, makes air-flow from top to bottom on bigger percentage of blade surface area Gradually being buffered, air velocity is gradually lowered, it is to avoid air-flow velocity is too fast causes punching to cabinet sidewall and cabinet top piston Hit.Blade body is taken second place in the flow-disturbing effect that the length of each cross section is identical, and what flow-disturbing effect was relatively poor is blade basis The twist blade 26 that body is gradually reduced from top to bottom in the length of each cross section.

As a kind of enforceable mode, as shown in Fig. 5, Fig. 6 and Fig. 8, twist blade 26 of the present utility model Embodiment one, two and three in, the thickness of blade body keeps consistent from top to bottom.The thickness of blade body can also be made Degree is gradually reduced from top to bottom, or the thickness of blade body is gradually increased from top to bottom.As shown in Figure 9 and Figure 10, In the embodiment four of twist blade 26, the thickness of blade body is gradually increased from top to bottom.

Further, twist blade 26 is fixedly installed in second pipe 24, edge on the lower surface 264 of twist blade The centrage of length direction and the dead in line of the first pipeline 22 or crossing.When twist blade 26 is installed, can basis The structure of gas chamber, is adjusted flexibly the lower surface 264 of twist blade centrage along its length and the first pipeline 22 The angle of axis, different angles produces different eddy flow effects, forms different air velocity distribution distributions, meets not Air-flow is actually needed by isostructural gas chamber.

In air inlet-outlet device 20 embodiment one shown in Fig. 3, the thickness of the blade body of the twist blade 26 of employing Keeping consistent from top to bottom, blade body is identical in the length of each cross section, and for reversing formation the most clockwise, On the lower surface 264 of twist blade, the angle between centrage and the axis of the first pipeline 22 along its length is equal to Angle between centrage and the axis of the first pipeline 22 along its length on the upper surface 266 of twist blade, i.e. Just direction to the first pipeline 22 place, the front (blade surface consistent with torsional direction) of twist blade 26.Can Set twist blade 26 front spiralization for the first gas channel, the back side spiralization of twist blade 26 the Two gas channels, now, the air-flow entered in the first pipeline 22 is vertically into the first gas channel.Refer to Figure 11 Shown in, air inlet-outlet device 20 embodiment two is, under twist blade with the difference of air inlet-outlet device 20 embodiment one Centrage along its length and the dead in line of the first pipeline 22 on end face 264, twist blade 26 just face To the direction at the first pipeline 22 place, now, the air-flow entered in the first pipeline 22 can be along the both sides table of blade body Face enters the first gas channel and the second gas channel.Refer to shown in Figure 12, air inlet-outlet device 20 embodiment three with The difference of air inlet-outlet device 20 embodiment one is, twist blade 26 the normal in front be perpendicular to the first pipeline The axis of 22, now, the air-flow entered in the first pipeline 22 enters the second gas channel.Refer to shown in Figure 13, Air inlet-outlet device 20 embodiment four is with the difference of air inlet-outlet device 20 embodiment one, the lower surface of twist blade Centrage along its length and the dead in line of the first pipeline 22 on 264, but the front of twist blade 26 dorsad The direction at one pipeline 22 place, now, the air-flow entered in the first pipeline 22 can enter along the both side surface of blade body Enter the first gas channel and the second gas channel.Refer to shown in Figure 14, air inlet-outlet device 20 embodiment five and turnover The difference of device of air 20 embodiment one is, central axis along its length on the lower surface 264 of twist blade In the axis of the first pipeline 22, twist blade 26 the direction at the first pipeline 22 place dorsad, front, now, The air-flow entered in first pipeline 22 is vertically into the second gas channel.

Further, refer to shown in Figure 15 and Figure 16, horizontally set one bar shaped fixed plate in second pipe 24 32, the inwall of second pipe 24 arranges locating slot, the two ends of bar shaped fixed plate 32 are fixed in locating slot.Please Refering to shown in Figure 17, bar shaped fixed plate 32 centrally along vertically offering hole 322, location, as shown in figure 16, reverse The center of the upper surface 266 of blade is fixedly installed a limited post 262 protruded out upward, limited post 262 and hole 322, location Coordinate clamping.In Figure 16, limited post 262 can be bolted the upper surface of twist blade 26.

As another kind of enforceable mode, twist blade 26 can also be able to be rotatably arranged in second pipe 24, Under the impact of Gas Flow stock, twist blade 26 can be with flow rotation, and twist blade 26 utilizes the torsion structure of self, Gas Flow stock is dissipated and guides it and flow to.Now twist blade 26 and second pipe 24 need employing to produce Pyrophoric material, as nonmetallic materials are made, it is ensured that production safety.

Further, in this utility model, the material of twist blade 26 is lucite, metal, pottery, rubber Or any one in plastics.For ensure use intensity, improve service life, twist blade 26 use copper alloy, The metal materials such as fine copper, rustless steel, cast iron, cast steel are made.Owing to coal gas belongs to inflammable and explosive gas, use gold When belonging to material making twist blade 26, twist blade 26 must assure that and can not rotate freely in second pipe 24, Electric spark is produced with the friction of other parts when avoiding rotating.For guaranteeing the safety of gas chamber and making twist blade 26 simultaneously There is higher impact resistance, on the premise of gas shock will not damage twist blade 26, preferentially use rubber, The nonmetallic materials such as plastics, refractory material make twist blade 26.

Further, as shown in figure 15, the shape of the lower surface of bar shaped fixed plate 32 and twist blade 26 is upper The mating shapes of end face, the lower surface of bar shaped fixed plate 32 is pressed on the upper surface 266 of twist blade, thus Twist blade 26 is reliably limited in second pipe 24, even if under the powerful impact of Gas Flow stock, twist blade The position of 26 also will not offset, and the flow direction of Gas Flow stock is stably deflected into completely vertical direction by horizontal direction. The lower surface 264 of twist blade is concordant with the highest point of the first pipeline 22, or the lower surface 264 of twist blade is slightly Highest point higher than the first pipeline 22.

Further, referring to shown in Figure 18 and Figure 19, locating slot is two and is symmetricly set on second pipe 24 Inwall on groove 34, the two ends of bar shaped fixed plate 32 are clamped in each groove 34 respectively, can second pipe Multipair symmetrically arranged groove 34 is set on the inwall in road 24, it is thus possible to according to the setting angle of twist blade 26, Select one pair of which groove 34 that bar shaped fixed plate 32 is installed neatly.Or locating slot is the week along second pipe 24 Annular groove 34 on the inwall being arranged on second pipe 24, the two ends of bar shaped fixed plate 32 are respectively by locking Part is clamped in annular groove 34, and annular groove 34 can adjust according to the setting angle of twist blade 26 more easily Bar shaped installing plate 32, is allowed to the upper surface 266 with twist blade and coordinates compression.

As a kind of enforceable mode, the cross section in hole 322, location is polygon.As shown in figure 17, hole, location The cross section of 322 is hexagon.Correspondingly, the cross section of the limited post 262 on the upper surface 266 of twist blade is also For hexagon, hexagonal structure not only convenient processing, moreover it is possible to make clamping more reliable.Can also be by hole 322, location Cross-section Design be other shape, such as rectangle, or make shape of cross section and the limited post 262 in hole, location 322 Shape of cross section different, as long as can realize hole 322, location and limited post 262 coordinates clamping.

Further, blade body axis vertically and the dead in line of second pipe 24, so make torsion Blade 26 is upright on the center of second pipe 24, and twist blade 26 can be made to touch as much as possible from The air-flow that one pipeline 22 enters, major part air-flow is delayed in entering the first gas channel and/or the second gas channel Punching, and air-flow is had optimal guide effect, it is to avoid the air-flow thump to cabinet.

Further, windup-degree is more than 90 degree and less than 180 degree, and the windup-degree of twist blade 26 also can be relatively Interior choosing, windup-degree clockwise or counterclockwise can be in 360 degree.Twist blade of the present utility model In the embodiment one, two, three, four of 26, windup-degree is 120 degree.The diameter range of twist blade 26 is 1000mm～5000mm, altitude range is 1000mm～5000mm, and thickness range is 30mm～2000mm.Can be right The model of twist blade 26 carries out Finite Element Simulation Analysis, the air velocity distribution distribution doped for simulation analysis, root According to it needs to be determined that the size of twist blade 26.

In gas chamber of the present utility model, twist blade 26 is fixedly installed the main process in air inlet-outlet device 20 As follows: twist blade 26 is placed in second pipe 24, the limited post 262 of twist blade 26 is secured to bar shaped In the hole, location 322 of fixed plate 32, adjust the setting angle of twist blade 26, i.e. adjust the lower surface of twist blade The angle of the axis of 264 centrages along its length and the first pipeline 22, after being adjusted in place, by bar shaped fixed plate The two ends of 32 are fixed in the groove 34 on second pipe 24 inwall.

Particular embodiments described above, has carried out entering one to the purpose of this utility model, technical scheme and beneficial effect The detailed description of step, it will be appreciated that the foregoing is only specific embodiment of the utility model, is not used to limit Fixed protection domain of the present utility model.Particularly point out, to those skilled in the art, all of the present utility model Within spirit and principle, any modification, equivalent substitution and improvement etc. done, should be included in guarantor of the present utility model Within the scope of protecting.

Claims (12)

1. an air inlet-outlet device, it is characterised in that described air inlet-outlet device includes:

Horizontally disposed first pipeline and the second pipe being vertically arranged, the lower ending opening of described second pipe and described the The one end open connection of one pipeline is formed into outlet passageway；

Being vertically arranged a twist blade in described second pipe, described twist blade includes blade body, described blade Body is relative torsion in the middle part of it, is correspondingly formed the first air-flow risen in the shape of a spiral in the both sides of described blade body and leads to Road and the second gas channel.

Air inlet-outlet device the most according to claim 1, it is characterised in that described blade body is about described leaf Sheet body axisymmetrical vertically, the cross section of described blade body is rectangle, and described blade body is respectively The length of cross section is identical, or described blade body is gradually reduced from top to bottom in the length of each cross section or increases.

Air inlet-outlet device the most according to claim 1, it is characterised in that the thickness of described blade body under To upper holding, the thickness of blade body consistent, described is gradually reduced from top to bottom, or the thickness of described blade body from Under on be gradually increased.

Air inlet-outlet device the most according to claim 1, it is characterised in that described twist blade is fixedly installed on In described second pipe, centrage along its length and the axle of described first pipeline on the lower surface of described twist blade Line overlaps or intersects.

Air inlet-outlet device the most according to claim 4, it is characterised in that laterally set in described second pipe Putting a bar shaped fixed plate, arrange locating slot on the inwall of described second pipe, the two ends of described bar shaped fixed plate are fixed In described locating slot；

Described bar shaped fixed plate centrally along vertically offering hole, location, the center of the upper surface of described twist blade is fixing to be set Putting a limited post protruded out upward, described limited post coordinates clamping with hole, described location.

Air inlet-outlet device the most according to claim 4, it is characterised in that the material of described twist blade is for having Any one in machine glass, metal, pottery, rubber and plastics.

Air inlet-outlet device the most according to claim 5, it is characterised in that the lower surface of described bar shaped fixed plate The mating shapes of upper surface of shape and described twist blade, the lower surface of described bar shaped fixed plate is pressed on described On the upper surface of twist blade.

Air inlet-outlet device the most according to claim 5, it is characterised in that described locating slot is that two symmetries set Putting the groove on the inwall of described second pipe, the two ends of described bar shaped fixed plate are clamped on each described groove respectively In, or described locating slot is that the annular along the inwall being circumferentially provided on described second pipe of described second pipe is recessed Groove, the two ends of described bar shaped fixed plate are clamped in described annular groove by locking member respectively.

Air inlet-outlet device the most according to claim 5, it is characterised in that the cross section in hole, described location is in many Limit shape.

10. according to the air inlet-outlet device described in any one of claim 1 to 9, it is characterised in that described blade body Axis vertically and the dead in line of described second pipe.

11. according to the air inlet-outlet device described in any one of claim 1 to 9, it is characterised in that described blade body Windup-degree more than 90 degree and be less than 180 degree.

12. 1 kinds of gas chambers, it is characterised in that described gas chamber includes cabinet and the turnover gas dress with internal cavities Putting, described air inlet-outlet device is the air inlet-outlet device described in any one of claim 1 to 11；

First pipe level runs through the bottom sidewall of described cabinet, and its two ends lay respectively at outside described cabinet and described cabinet In；Second pipe is arranged in described internal cavities, under described second pipe along the axis vertical of described internal cavities End opening is formed into outlet passageway with described first pipeline open-ended connection in described cabinet.