Annular air blowing cooling equipment and air chamber thereof

Abstract

The present invention provides an annular air blowing cooling device and an air chamber thereof. The air chamber includes an end cover, a support assembly, an air chamber housing and a straightening cylinder assembly which are coaxially arranged therebetween, wherein the straightening cylinder assembly includes a straightening inner cylinder assembly and a straightening outer cylinder assembly. The support assembly includes an air chamber flange and a circular tray located on the inner side of the air chamber flange, the air chamber housing is fixed to the outer side of the air chamber flange, the bottom end of the straightening cylinder assembly is placed on the tray, and the air chamber also includes a quick disassembly assembly for combining or separating the air chamber flange and the circular tray. When repairing or replacing the straightening cylinder assembly, the present invention does not need to move the end cover or disassemble a number of bolts, so the labor intensity is greatly reduced and the work efficiency is significantly improved.

Description

Technical Field

[0001] The invention relates to a device for producing chemical fibers, in particular to an annular blowing cooling device and an air chamber thereof. Background Art

[0002] The chemical material in the molten state passes through the fine holes of a certain shape under a certain pressure to form filaments, which are cooled and solidified into filament bundles, that is, chemical fibers. The annular blowing cooling equipment is currently the most widely used filament bundle cooling equipment because of its uniform blowing, less total air volume and energy saving.

[0003] The annular air blowing cooling device comprises a frame, a wind chamber arranged above the frame, a lifting device connected between the frame and the wind chamber, and an air inlet pipe connected to the wind chamber.

[0004] The air chamber includes an end cover, a base plate, and an air chamber shell and a fairing cylinder assembly connected therebetween, wherein the fairing cylinder assembly generally includes a fairing inner cylinder and a fairing outer cylinder, the air chamber shell, the fairing outer cylinder and the fairing inner cylinder are spaced from each other from the outside to the inside and are coaxially arranged, and an air inlet for connecting to an air inlet pipe is provided on the air chamber shell.

[0005] The end cover of the traditional wind chamber is made of medium-thick metal plates, such as stainless steel plates and carbon steel plates with a thickness of about 20mm, and is processed by methods such as turning, milling, and planing to remove materials. It is very heavy and can reach more than 20kg; the end cover is provided with multiple inner circle bolt holes and multiple outer circle bolt holes, and is installed on the wind chamber shell by bolt connection. The rectifier cylinder assembly in the wind chamber is a component that requires frequent maintenance and replacement. The traditional method is to manually remove a dozen bolts in the inner circle bolt holes and the outer circle bolt holes, take out the rectifier cylinder assembly from the opening at the top of the wind chamber, and then put the new rectifier cylinder assembly into the wind chamber through the opening at the top of the wind chamber, and then cover the end cover and tighten a dozen bolts. On the one hand, such a heavy end cover increases the labor intensity of the staff; on the other hand, it is necessary to repeatedly remove and install multiple bolts, which is cumbersome and inefficient.

[0006] The above information disclosed in this background section is only for enhancement of understanding of the background of the present disclosure and therefore it may include information that does not constitute the relevant technology that is already known to one of ordinary skill in the art. Summary of the invention

[0007] In view of the technical problems of the end cover in the above-mentioned prior art, one object of the present invention is to provide a wind chamber with convenient maintenance and high efficiency;

[0008] Another object of the present invention is to provide an annular air blowing cooling device comprising the air chamber of the present invention.

[0009] According to one aspect of the present invention, a wind chamber includes an end cover, a support assembly, a wind chamber housing and a fairing cylinder assembly coaxially arranged therebetween, wherein the fairing cylinder assembly includes a fairing inner cylinder assembly and a fairing outer cylinder assembly. The support assembly includes a wind chamber flange and a circular tray located inside the wind chamber flange, the wind chamber housing is fixed to the outer side of the wind chamber flange, the bottom end of the fairing cylinder assembly is placed on the tray, and the wind chamber also includes a quick disassembly assembly for combining or separating the wind chamber flange and the circular tray.

[0010] According to one embodiment of the present invention, a mounting portion is fixed to the lower end of the tray, and the quick disassembly assembly includes a first locking member fixed to the air chamber flange and a second locking member rotatably installed on the outer circumference of the mounting portion, and the second locking member and the first locking member respectively have mutually matching locking structures.

[0011] According to one embodiment of the present invention, the mounting portion includes a plurality of limit blocks arranged on the same circumference and a plurality of pressure plates detachably mounted on the plurality of limit blocks, a receiving space is formed between the pressure plate and the tray, and the second locking member is in a circular ring shape, sleeved on the periphery of the plurality of limit blocks, and located in the receiving space.

[0012] According to an embodiment of the present invention, the mutually cooperating locking structures are internal threads and external threads, or buckles and bayonet sockets.

[0013] According to an embodiment of the present invention, the first locking member includes an annular locking block; or the first locking member includes at least two arc-shaped locking blocks arranged on the same circumference, and there is a gap between two adjacent arc-shaped locking blocks.

[0014] According to one embodiment of the present invention, the tray includes a circular disc body and a first limiting convex ring, a second limiting convex ring and a third limiting convex ring which are arranged on the disc body at intervals; the rectifying outer cylinder assembly includes a rectifying outer cylinder, and the bottom end portion of the rectifying outer cylinder has a bottom end flange, and the bottom end flange is detachably clamped between the first limiting convex ring and the second limiting convex ring; the rectifying inner cylinder assembly includes a porous cylinder, a wire mesh cylinder, and a lower flange fixed to the bottom ends of the porous cylinder and the wire mesh cylinder, and the outer end portion of the lower flange abuts against the third limiting convex ring.

[0015] According to one embodiment of the present invention, the end cover comprises:

[0016] A first metal sheet is in a disc shape, has a central through hole and at least one first bending portion, and has a first inner edge fixing portion and a first outer edge fixing portion along a radial direction;

[0017] The second metal sheet is disc-shaped, has a central through hole and at least two second bent portions, the second metal sheet has a second inner edge fixing portion and a second outer edge fixing portion along the radial direction, the second bent portion includes an annular outer mounting groove recessed toward the first metal sheet and an inner mounting groove recessed toward the first metal sheet, and the top ends of the rectifier outer cylinder assembly and the rectifier inner cylinder assembly are respectively correspondingly arranged at the outer mounting groove and the inner mounting groove;

[0018] The second metal sheet is arranged under the first metal sheet, the first inner edge fixing portion of the first metal sheet is fixedly connected to the second inner edge fixing portion of the second metal sheet, the first outer edge fixing portion of the first metal sheet is fixedly connected to the second outer edge fixing portion of the second metal sheet, and a hollow portion is formed between the first metal sheet and the second metal sheet.

[0019] According to one embodiment of the present invention, the first bending portion of the first metal sheet includes an annular sealing gasket groove recessed toward the second metal sheet and an annular strength reinforcement groove recessed toward the second metal sheet; and / or the thickness of the first metal sheet is 0.8mm to 5mm; and / or the thickness of the second metal sheet is 0.8mm to 5mm; and / or the thickness of the end cover at the first inner edge fixing portion is less than the thickness at the first outer edge fixing portion.

[0020] According to another aspect of the present invention, a ring-shaped blowing cooling device includes a frame, a wind chamber arranged above the frame, a lifting device connected between the frame and the wind chamber, and an air inlet pipe connected to the wind chamber. According to one embodiment of the present invention, the wind chamber is the wind chamber described in the present invention.

[0021] According to one embodiment of the present invention, at least one support and limit column is provided on the frame, a longitudinal positioning hole is provided at the top end of the support and limit column, and at least one positioning pin that can be inserted into the longitudinal positioning hole is provided at a position corresponding to the support and limit column on the tray of the air chamber.

[0022] It can be seen from the above technical solution that the advantages and positive effects of the present invention are:

[0023] In the present invention, the supporting assembly of the air chamber includes an air chamber flange and a tray, the air chamber shell is fixed to the outer side of the air chamber flange, and the fairing cylinder assembly is placed on the tray. At the same time, the air chamber flange and the tray are provided with a quick disassembly assembly that can quickly combine or separate the two. When the air chamber flange is combined with the tray, the entire air chamber forms a whole, and can perform normal air blowing and cooling work; when the fairing cylinder assembly needs to be replaced, the air chamber flange is separated from the tray by operating the quick disassembly assembly, so that the fairing cylinder assembly is detached from the air chamber shell. Therefore, when repairing or replacing the fairing cylinder assembly, the present invention does not need to move the end cover or disassemble a number of bolts, so the labor intensity is greatly reduced and the work efficiency is significantly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The above and other features and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings.

[0025] Figure 1 It is a schematic diagram of the main structure of the annular air blowing cooling device of the present invention;

[0026] Figure 2 yes Figure 1 A top view of

[0027] Figure 3 yes Figure 1 AA cross-sectional view showing the bottom structure of the air chamber of the present invention;

[0028] Figure 4 yes Figure 2 BB cross-sectional view;

[0029] Figure 5 yes Figure 4 Enlarged view of part C;

[0030] Figure 6 yes Figure 5 Partial exploded view of

[0031] Figure 7 It is a three-dimensional structural schematic diagram of the air chamber of the present invention;

[0032] Figure 8 It is a three-dimensional structural schematic diagram of the end cover of the present invention;

[0033] Fig. 9 yes Figure 8 A partially cutaway three-dimensional structural schematic diagram of the end cap shown;

[0034] Fig.10 yes Figure 8 an enlarged cross-sectional view of the end cap shown;

[0035] Fig.11 yes Fig.10 Enlarged view of the middle M part;

[0036] Fig.12 The operating steps of replacing the rectifier cylinder assembly of the annular air blowing cooling device of the present invention are shown.

[0037] In the figure: 10, frame; 11, lifting device; 12, air inlet pipe; 13, support limit column; 14, positioning pin; 2, first metal sheet; 20, central through hole; 21, first inner edge fixing part; 22, first outer edge fixing part; 23, sealing gasket groove; 24, strength reinforcement groove; 25, first through hole; 3, second metal sheet; 30, central through hole; 31, second inner edge fixing part; 32, second outer edge fixing part; 33, outer mounting groove; 34, inner mounting groove; 35, second through hole; 4, air Chamber; 41, air chamber shell; 42, rectifier outer cylinder; 421, bottom flange; 422, top flange; 43, porous cylinder; 44, wire mesh cylinder; 45, lower flange; 46, upper flange; 47, flow stabilizing cylinder; 51, air chamber flange; 61, disk; 62, first limiting convex ring; 63, second limiting convex ring; 64, third limiting convex ring; 71, limiting block; 72, pressure plate; 81, first locking piece; 811, arc-shaped locking block; 82, second locking piece; 91, hand wheel; 92, connecting column. DETAILED DESCRIPTION

[0038] See also Figure 1 and Figure 2 , Figure 1 It is a schematic diagram of the main structure of the annular air blowing cooling device of the present invention; Figure 2 yes Figure 1 The top view of the annular blowing cooling device of the present invention comprises a frame 10, a wind chamber 4 arranged above the frame 10, a lifting device 11 connected between the frame 10 and the wind chamber 4, and an air inlet pipe 12 connected to the wind chamber. The frame 10 can be a hollow columnar structure, and the cross section of the frame 10 can be a smoothly transitioned curve, that is, there are no edges and corners on the frame 10. This streamlined design is more in line with the flow dynamics of wind. The rounded curve design optimizes the resistance to wind, reduces the disturbance of wind in the pipeline, and provides the first guarantee for the uniformity of the annular blowing wind speed. One end of the air inlet pipe 12 is connected to the wind chamber 4, which is used to blow cold air into the wind chamber 4. A section of retractable corrugated pipe is provided in the air inlet pipe 12. The lifting device 11 can include two parallel guide rods and a lifting cylinder arranged between the two guide rods. The cylinder body of the lifting cylinder is installed on the frame 10, and the end of the piston rod is connected to the wind chamber 4. The lifting cylinder is used to drive the wind chamber 4 to rise and fall.

[0039] In the annular air blowing cooling device of the present invention, at least one supporting and limiting column 13 (four in this embodiment) is provided on the frame 10, a longitudinal positioning hole is provided at the top end of the supporting and limiting column 13, and at least one positioning pin 14 capable of being inserted into the longitudinal positioning hole is provided on the tray body 61 of the tray at a position opposite to the supporting and limiting column 13. The air chamber 4 of the present invention is described in detail below.

[0040] See also Figures 3 to 7 , Figure 3 yes Figure 1AA cross-sectional view showing the bottom structure of the air chamber of the present invention; Figure 4 yes Figure 2 BB cross-sectional view; Figure 5 yes Figure 4 Enlarged view of part C; Figure 6 yes Figure 5 Partial exploded view of Figure 7 It is a three-dimensional structural schematic diagram of the wind chamber of the present invention.

[0041] The air chamber 4 of the present invention comprises an end cover, a support assembly, an air chamber housing 41 and a fairing cylinder assembly arranged coaxially therebetween. The fairing cylinder assembly comprises a fairing inner cylinder assembly and a fairing outer cylinder assembly. The support assembly comprises an air chamber flange 51 and a circular tray located inside the air chamber flange 51. The air chamber housing 41 is fixed to the outer side of the air chamber flange 51, and the bottom end of the fairing cylinder assembly is placed on the tray.

[0042] The tray in this embodiment includes a circular disc body 61 and a first limiting convex ring 62, a second limiting convex ring 63 and a third limiting convex ring 64 which are arranged on the disc body 61 at intervals. The rectifying outer cylinder 42 assembly includes a rectifying outer cylinder 42, the bottom end of the rectifying outer cylinder 42 has a bottom end flange 421, the bottom end flange 421 is pluggably clamped between the first limiting convex ring 62 and the second limiting convex ring 63, and the top end of the rectifying outer cylinder 42 has a top end flange 422. The rectifying inner cylinder assembly includes a porous cylinder 43 made of a porous plate, a wire mesh cylinder 44 made of a wire mesh, and a lower flange 45 and an upper flange 46 which are respectively welded and fixed to the bottom end and the top end of the porous cylinder 43 and the wire mesh cylinder 44. The outer end of the lower flange 45 can protrude out of the porous cylinder 43 and abut against the third limiting convex ring 64. Sealing gaskets can be respectively arranged between the bottom flange 421 of the rectifier outer cylinder 42 and the tray body 61 of the tray, between the lower flange 45 and the tray body 61 of the tray, and between the end of the air chamber flange 51 and the tray body 61 to enhance the sealing performance. Therefore, in the air chamber of the present invention, the rectifier cylinder assembly can be detachably mounted on the tray body 61 and can be separated from the air chamber housing 41 and the air chamber flange 51.

[0043] In some embodiments, the annular blowing cooling device of the present invention further comprises a flow stabilizer 47, the upper end of which is fixed to the lower surface of the tray body 61 of the tray, and the inner diameter of the flow stabilizer 47 may be substantially the same as the inner diameter of the wire mesh cylinder 44 of the rectifier inner cylinder assembly.

[0044] See also Figure 8 , Fig. 9 and Fig.10 , Figure 8 It is a three-dimensional structural schematic diagram of the end cover of the present invention; Fig. 9 yes Figure 8 A partially cutaway three-dimensional structural schematic diagram of the end cap shown; Fig.10 yes Figure 8The enlarged cross-sectional view of the end cover shown; an embodiment of the end cover of the wind chamber of the air blowing cooling device of the present invention includes a first metal sheet 2 and a second metal sheet 3.

[0045] The first metal sheet 2 is a disc-shaped thin steel plate with a thickness of 2 mm. Of course, the thickness of the first metal sheet is not limited to 2 mm. Considering its diameter, strength, thickness, weight and other factors, its thickness is in the range of 0.8 mm to 5 mm, preferably in the range of 1 mm to 3 mm, such as 1.5 mm, 2.5 mm, 3 mm, etc., and of course it can also be 4 mm, 4.5 mm, etc., so that the strength, thickness, weight and the like can be taken into account to achieve the best balance.

[0046] The first metal sheet 2 has a central through hole 20 in the center, so along the radial direction, the first metal sheet 2 has a first inner edge fixing portion 21 and a first outer edge fixing portion 22. Around the central through hole 20, the first metal sheet 2 is also provided with at least one first bending portion. The bending portion is defined as a bending portion formed as long as the two surfaces are not on the same plane.

[0047] The structure of the second metal sheet 3 is similar to that of the first metal sheet 2: the second metal sheet 3 is a disc-shaped thin steel plate with a thickness of 2 mm. Of course, the thickness of the second metal sheet 3 is not limited to 2 mm. Considering its diameter, strength, thickness, weight and other factors, its thickness is in the range of 0.8 mm to 5 mm, preferably in the range of 1 mm to 3 mm, such as 1.5 mm, 2.5 mm, 3 mm, etc., and of course it can also be 4 mm, 4.5 mm, etc., so that strength, thickness, weight and the like can be taken into account to achieve the best balance. The center of the second metal sheet 3 has a central through hole 30, so that along the radial direction, the second metal sheet 3 has a second inner edge fixing portion 31 and a second outer edge fixing portion 32. Surrounding the central through hole 30, the second metal sheet 3 is also provided with at least one second bending portion. The diameter of the central through hole 30 of the second metal sheet 3 is the same as the diameter of the central through hole 20 of the first metal sheet 2.

[0048] The second metal sheet 3 is arranged under the first metal sheet 2, the first inner edge fixing portion 21 of the first metal sheet 2 is fixedly connected to the second inner edge fixing portion 31 of the second metal sheet 3, the first outer edge fixing portion 22 of the first metal sheet 2 is fixedly connected to the second outer edge fixing portion 32 of the second metal sheet 3, and a hollow portion is formed between the first metal sheet 2 and the second metal sheet 3.

[0049] In one embodiment, the first metal sheet 2 has at least one annular contact portion with the second metal sheet 3 at a portion between the first inner edge fixing portion 21 and the first outer edge fixing portion 22. At the contact portion, the first metal sheet 2 is fixedly connected to the second metal sheet 3, and the contact portion divides the hollow portion into two or more hollow portions.

[0050] See also Fig.10 and Fig.11 , Fig.11 yes Fig.10 The second bending portion of the second metal sheet 3 includes an outer mounting groove 33 which is annular and recessed toward the first metal sheet 2 and an inner mounting groove 34 which is recessed toward the first metal sheet 2. The outer mounting groove 33 may be in a ┌┐ shape, and the inner mounting groove 34 may be in an inverted "L" shape. Further, the second bending portion of the second metal sheet 3 also includes a reinforcing portion connected to the inner mounting groove 34 and protruding away from the first metal sheet 2. The depth of the reinforcing portion is less than the depth of the inner mounting groove 34, so that the thickness T1 of the end cover at the central through hole can be less than the thickness T2 at the outer edge, which can further reduce the weight of the end cover; more importantly, the thickness T1 at the central through hole is easy to adjust, for example, the thickness T1 can be changed by increasing the height of the first inner edge fixing portion 21 of the first metal sheet 2 (in the present invention, the height and the thickness are in the same direction), so the height of the "windless zone" can be conveniently changed by designing the thickness T1 at the central through hole.

[0051] like Fig.11 As shown, the first bending portion of the first metal sheet 2 includes an annular sealing gasket groove 23 that is recessed into the second metal sheet 3 and an annular strength reinforcement groove 24 that is recessed into the second metal sheet 3. A sealing gasket 231 is arranged in the sealing gasket groove 23 (see Figure 5 ).

[0052] like Fig. 9 and Fig.11 As shown, a portion of the outer mounting groove 33 of the second metal sheet 3 contacts and is fixedly connected to a portion of the sealing gasket groove 23 of the first metal sheet 2. A portion of the inner mounting groove 34 of the second metal sheet 3 contacts and is fixedly connected to the strength reinforcement groove 24 of the first metal sheet 2. The outer mounting groove 33 and the sealing gasket groove 23 are partially offset from each other, which can effectively improve the overall structural strength and rigidity of the end cover. Of course, when the first metal sheet 2 and the second metal sheet 3 are thicker or the overall diameter of the end cover is smaller, the outer mounting groove 33 and the sealing gasket groove 23 can also be completely offset. In addition, since the second metal sheet 3 contacts the first metal sheet 2, a plurality of hollow portions are formed between the second metal sheet 3 and the first metal sheet 2. For example, a hollow portion is formed between two adjacent contact positions, and a hollow portion is formed between the contact position and the inner edge of the end cover and the outer edge of the end cover, respectively. This not only effectively reduces the weight, but also greatly improves the structural strength of the end cover. As shown Figure 5 As shown, the top flange 422 of the rectifier outer cylinder 42 is arranged in the outer mounting groove 33, and a sealing gasket 231 can be arranged between the top flange 422 and the outer mounting groove 33. The upper flange 46 of the rectifier inner cylinder assembly is arranged in the inner mounting groove 34, and a sealing gasket can also be arranged between the two.

[0053] like Fig.11As shown, the first inner edge fixing portion 21 is bent vertically toward the second inner edge fixing portion 31, and the second inner edge fixing portion 31 is bent vertically toward the first inner edge fixing portion 21, and along the diameter direction of the end cover, the first inner edge fixing portion 21 and the second inner edge fixing portion 31 are fitted together and fixedly connected; the first outer edge fixing portion 22 is bent vertically toward the second outer edge fixing portion 32, and the second outer edge fixing portion 32 is bent vertically toward the first outer edge fixing portion 22, and along the diameter direction of the end cover, the first outer edge fixing portion 22 and the second outer edge fixing portion 32 are fitted together and fixedly connected, that is, at the inner and outer edges of the end cover, the contact area between the first metal sheet 2 and the second metal sheet 3 is large, and therefore, the fixation is firm and the strength is high.

[0054] like Fig. 9 and Fig.11 As shown, a plurality of first through holes 25 are evenly arranged along the outer circumferential direction on the first metal sheet 2, and a plurality of second through holes 35 corresponding to the plurality of first through holes 25 are evenly arranged along the outer circumferential direction on the second metal sheet 3, and the diameter of the second through hole 35 is smaller than the diameter of the first through hole 25. A bolt (not shown) can be passed through the first through hole 25 and the second through hole 35 corresponding to each other, so as to install the end cover to the air chamber shell of the air chamber. The end cover with through holes, i.e., bolt holes, can be easily replaced by bolts to disassemble and assemble the end cover of the traditional air chamber. Of course, the end cover of the present invention does not necessarily include through holes, and the end cover can be fixed to the air chamber shell by other means such as welding.

[0055] The "fixed connection" mentioned in the present invention can be riveting, welding, etc., and welding can be full arc welding or segment welding, such as argon arc welding, double arc welding, laser welding, and the like.

[0056] In the air chamber of the present invention, a mounting portion is fixed to the lower end of the tray body 61 of the tray. The air chamber of the present invention also includes a quick disassembly assembly for quickly combining or separating the air chamber flange 51 with the circular tray. The structure of the quick disassembly assembly can be varied, and may include a first locking member 81 fixed to the bottom end of the air chamber flange 51 and a second locking member 82 rotatably mounted on the outer circumference of the mounting portion, and the second locking member 82 and the first locking member 81 respectively have mutually matching locking structures. In this embodiment, the mounting portion may include a plurality of limit blocks 71 arranged on the same circumference and a plurality of pressure plates 72 respectively detachably mounted on the plurality of limit blocks 71, for example, by screws, and an accommodating space is formed between the pressure plate 72 and the tray body 61, and the second locking member 82 may be in a circular shape, sleeved on the periphery of the plurality of limit blocks 71, and located in the accommodating space.

[0057] In the normal working state of the air chamber, the locking structure of the second locking member 82 and the first locking member 81 can be an internal thread and an external thread. In some other embodiments, the locking structure can also be a buckle and a bayonet, or other types of matching structures that can be quickly combined and separated.

[0058] In one embodiment, the first locking member 81 may be an annular locking block. In another preferred embodiment, the first locking member 81 includes four arc-shaped locking blocks 811 arranged on the same circumference, and there is a gap between two adjacent arc-shaped locking blocks 811. Of course, the number of arc-shaped locking blocks 811 is not limited to 4, and the number may also be 2, 3 or more.

[0059] For ease of operation, the quick disassembly assembly of the present invention may further include a hand wheel 91 , which may be fixed to the bottom surface of the second locking member 82 via a plurality of connecting posts 92 .

[0060] See also Fig.12 , Fig.12 The operation steps of replacing the rectifier tube assembly of the annular air blowing cooling device of the present invention are shown. Fig.12 As shown, when the fairing cylinder assembly needs to be replaced or repaired, the air chamber 4 is first lowered by the lifting device 11, and the positioning pin 14 on the tray body 61 of the tray is inserted into the longitudinal positioning hole at the top end of the support limit column 13 to support and position the fairing cylinder assembly; then the hand wheel 91 is rotated to unlock the first locking member 81 and the second locking member 82, so that the tray and the fairing cylinder assembly thereon are disengaged from the air chamber flange 51 and the air chamber shell 41 thereon; then, the air chamber 4 is raised by the lifting device 11, and the fairing cylinder assembly thereon remains on the frame 10; the fairing cylinder assembly that needs to be repaired or cleaned or is faulty is replaced with a new fairing cylinder assembly; then, the air chamber 4 is lowered by the lifting device 11, and the hand wheel 91 is operated to rotate to lock the first locking member 81 and the second locking member 82, so that the tray and the fairing cylinder assembly thereon are combined into a whole with the air chamber flange 51 and the air chamber shell 41 thereon; finally, the air chamber 4 is raised to the working state by the lifting device 11.

[0061] From the above process of replacing the rectifier tube assembly, it can be known that the lifting and lowering of the air chamber 4 is completed by the lifting device 11, and the only manual operation required is to rotate the hand wheel 91 forward and backward. Therefore, the efficiency of replacing the rectifier tube assembly of the annular blowing cooling equipment of the present invention is significantly improved, and the labor intensity of the operator can be greatly reduced by 90%. The operation time is only one-fifth to one-tenth of the existing equipment, which creates conditions for improving the product quality of the raw silk. The present invention breaks the structural form in which the rectifier tube assembly needs to be installed from the upper part of the air chamber in the traditional technology, and designs a quick-installation structure installed from the lower part of the air chamber. The significance of this improvement is: it greatly shortens the replacement time of the rectifier tube assembly and directly increases the output; the operator no longer has to waste labor to move the 20-kilogram air chamber end cover when replacing the rectifier tube, nor does it have to install and tighten more than a dozen screws.

Claims

1. A wind chamber, comprising an end cover, a support assembly, a wind chamber housing and a fairing cylinder assembly disposed coaxially therebetween, wherein the fairing cylinder assembly comprises a fairing inner cylinder assembly and a fairing outer cylinder assembly, characterized in that: The support assembly includes a plenum flange and a circular tray located inside the plenum flange, the plenum housing is fixed to the outer side of the plenum flange, the bottom end of the fairing cylinder assembly is placed on the tray, and the plenum further includes a quick disassembly assembly for combining or separating the plenum flange and the circular tray. Wherein, the tray comprises a circular disc body and a first limiting convex ring, a second limiting convex ring and a third limiting convex ring which are arranged on the disc body at intervals; the rectifying outer cylinder assembly comprises a rectifying outer cylinder, the bottom end portion of the rectifying outer cylinder has a bottom end flange, and the bottom end flange is detachably clamped between the first limiting convex ring and the second limiting convex ring; the rectifying inner cylinder assembly comprises a porous cylinder, a wire mesh cylinder, and a lower flange fixed to the bottom ends of the porous cylinder and the wire mesh cylinder, the outer end portion of the lower flange protrudes out of the porous cylinder and abuts against the third limiting convex ring, The lower end of the tray is fixed with a mounting portion, the quick disassembly assembly comprises a first locking member fixed to the air chamber flange and a second locking member rotatably mounted on the outer circumference of the mounting portion, the second locking member and the first locking member respectively having locking structures that cooperate with each other, Among them, the mounting portion includes a plurality of limit blocks arranged on the same circumference and a plurality of pressure plates respectively detachably mounted on the plurality of limit blocks, an accommodating space is formed between the pressure plate and the tray, and the second locking member is in a circular ring shape, is sleeved on the periphery of the plurality of limit blocks, and is located in the accommodating space.

2. The air chamber according to claim 1, characterized in that: The mutually cooperating locking structures are internal threads and external threads, or buckles and bayonet sockets.

3. An annular air blowing cooling device, comprising a frame, a wind chamber arranged above the frame, a lifting device connected between the frame and the wind chamber, and an air inlet pipe connected to the wind chamber, characterized in that: The wind chamber is the wind chamber as described in any one of claims 1-2.

4. The annular air blowing cooling device according to claim 3, characterized in that: The frame is provided with at least one supporting and limiting column, the top end of the supporting and limiting column is provided with a longitudinal positioning hole, and the tray of the air chamber is provided with at least one positioning pin which can be inserted into the longitudinal positioning hole at a position corresponding to the supporting and limiting column.

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