CN209906935U - Low circumferential wind speed non-uniform rate circular blowing cooling device - Google Patents
Low circumferential wind speed non-uniform rate circular blowing cooling device Download PDFInfo
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- CN209906935U CN209906935U CN201920122770.1U CN201920122770U CN209906935U CN 209906935 U CN209906935 U CN 209906935U CN 201920122770 U CN201920122770 U CN 201920122770U CN 209906935 U CN209906935 U CN 209906935U
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Abstract
The utility model discloses a low circumferential wind speed non-uniform circular blowing cooling device, which comprises a rectifying chamber, a rectifying plate arranged in the rectifying chamber, an upper wind chamber arranged on the upper layer of the rectifying chamber, a surge chamber arranged on the upper layer of the upper wind chamber, a lower wind chamber arranged on the lower layer of the rectifying chamber and an air inlet pipe connected with the lower wind chamber, wherein a guide plate is arranged in the surge chamber, and the longitudinal section of the guide plate is in a curve shape of smooth transition, so that the surge chamber is in a shape of big end down and small end up; the air-supply line is 30 ~ 60 degrees with lower wind chamber axis contained angle, the utility model discloses have that the damping is low, the consumption is little, wind speed circumference inhomogeneous rate is low, beneficial effect such as the air-out is steady, be applicable to in the various chemical fibre spinning shaping production.
Description
Technical Field
The utility model relates to a chemical fiber textile sector relates to a chemical fiber filamentation cooling device, especially relates to a low uneven rate ring-blow cooling device of circumference wind speed.
Background
With the continuous improvement of living standard, the quality of the existing chemical fiber can not meet the special requirements of people on chemical fiber products, people hope that the chemical fiber can have higher quality and even exceed the performance of natural fiber, and the improvement of production equipment becomes more important for producing high-quality chemical fiber, and in the chemical fiber production, the most important technologies are solution conveying; spinning and cooling; the most important of the key technical steps is the cooling process, the cooling directly influences the uniformity among fibers in fiber forming, and further influences the quality of finished chemical fibers, and the existing cooling device generally has three forms of semi-open type low-damping outer ring blowing device, central inward outer ring blowing and totally enclosed outer ring blowing. In the cooling and blowing device, the characteristics of wind speed, stability, distribution along the path, circumferential non-uniformity and the like have the greatest influence on spinning formation.
The wind direction of the air outlet of the circular blowing cooling device is perpendicular to the filament outlet direction, and the circular blowing has higher fiber cooling efficiency, however, the design and the selection of the rectification chamber, the rectification plate and the rectification material of the existing device have defects, so that the non-uniformity rate of the air outlet circumference of the existing circular blowing cooling device is not very ideal.
The main factor that influences the inhomogeneous rate of circumference wind speed is the rectification material and the rectification mode of device, the utility model discloses a to the reasonable improvement of the rectification room, cowling panel, the rectification material of current device, reach the purpose of solving the inhomogeneous problem of air-out circumference.
For example, an "adjustable circular-blowing cooling system" disclosed in chinese patent document No. CN 102199796B is provided, in which high-precision pressure sensors are installed in both a static pressure chamber and a wind chamber of a circular-blowing device, an automatic control valve is installed at a wind inlet pipe, and the whole production line is controlled by only one computer.
SUMMERY OF THE UTILITY MODEL
The utility model relates to an overcome the problem of the great problem of current circular-blowing cooling device air-out inhomogeneous rate in circumference, provide a low damping, the air-out is stable, the less circular-blowing cooling device of the inhomogeneous rate of circumference wind speed.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a low circumferential wind speed non-uniform circular blowing cooling device comprises a rectifying chamber, a rectifying plate arranged in the rectifying chamber, an upper wind chamber arranged on the upper layer of the rectifying chamber, a pressure stabilizing chamber arranged on the upper layer of the upper wind chamber, a lower wind chamber arranged on the lower layer of the rectifying chamber and an air inlet pipe connected with the lower wind chamber, wherein a guide plate is arranged in the pressure stabilizing chamber, and the longitudinal section of the guide plate is in a curve shape with smooth transition, so that the pressure stabilizing chamber is in a shape with a large lower part and a small upper part; the included angle between the air inlet pipe and the axis of the lower air chamber is 30-60 degrees.
In the technical scheme, cooling air enters the lower air chamber from the air inlet pipe, then moves upwards to pass through the rectifying chamber and is rectified in the rectifying chamber to enter the upper air chamber, the cooling air blown out from the upper air chamber enters the pressure stabilizing chamber, and the cooling air and the guide plates act in the pressure stabilizing chamber, so that the guide plates enable the cooling air to be uniformly and stably blown to the center from the periphery of the whole cooling device in the direction perpendicular to the axis of the whole cooling device. In the whole process, the Reynolds number of the cooling air in the air inlet pipe is larger than that of the cooling air in the upper air chamber and that of the cooling air in the pressure stabilizing chamber. The utility model is different from the prior circular air-blowing cooling device in that the longitudinal section of the guide plate of the utility model is in a smooth transition curve shape, the longitudinal section of the guide plate of the prior circular air-blowing cooling device is in an inclined straight line shape, and the guide plate in the special shape can reduce disturbance to the cooling air when interacting with the cooling air, so that the horizontal air inlet is more stable; in addition, the utility model discloses an air-supply line is 30 ~ 60 degrees non-vertical state with lower plenum axis contained angle, and this can make its speed circumference maximum difference rate of cooling air when lower plenum littleer.
Preferably, the included angle between the air inlet pipe and the axis of the lower air chamber is 45 degrees. The 45-degree included angle enables the circumferential maximum difference rate of the cooling air in the lower air chamber to be minimum.
Preferably, the longitudinal section curve fitting equation of the guide plate is
Wherein, a is 197.1; b is 1.46; c is 1.68. The special-shaped guide plate has smaller disturbance to cooling air and ensures that the air outlet is more uniform and horizontal.
Preferably, the rectifying plate is a combination of a porous plate and a stainless steel screen. The combined structure of the perforated plate and the stainless steel screen mesh has low damping, meets the technical requirements, and has low cost and easy processing and manufacturing.
Preferably, an upper rectifying layer is arranged between the upper rectifying layer and the pressure stabilizing chamber. The multiple rectifying layers enable the Reynolds number of the cooling air to be smaller on the premise of reasonable damping, namely the turbulence degree of the cooling air is lower, and spinning forming is facilitated.
Therefore, the utility model discloses following beneficial effect has:
(1) the circumferential non-uniformity rate of cooling air is small;
(2) circular blowing is more uniform and stable;
(3) the damping is low, and the overall energy consumption of the device is low.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a partial schematic view of the present invention.
Fig. 3 is a schematic view of a flow field of a plenum chamber of the present invention.
In the figure: 1. the static pressure chamber 2, the upper air chamber 3, the rectifying chamber 4, the lower air chamber 5, the air inlet pipe 6, the guide plate 7, the rectifying plate 8 and the upper rectifying layer.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description.
The first embodiment is as follows: in the embodiment shown in fig. 1, 2 and 3, the low circumferential wind speed non-uniformity circular blowing cooling device comprises a rectification chamber 3; a rectifying plate 7 is arranged in the rectifying chamber 3, and the rectifying plate 7 is formed by combining a porous plate with the porosity of 23% and a stainless steel sieve with the wire diameter of 0.1 mm and 102 meshes; an upper air chamber 2 is arranged on the upper layer of the rectification chamber 3; a pressure stabilizing chamber 1 is arranged at the upper part of the upper air chamber 2, an upper rectifying layer 8 is arranged between the upper air chamber 2 and the pressure stabilizing chamber 1, and the structure of the rectifying layer is the same as that of the rectifying plate 7; a lower air chamber 4 is arranged at the lower layer of the rectification chamber 3, an air inlet pipe 5 is connected with the lower air chamber 4, and the axial line included angle between the air inlet pipe 5 and the lower air chamber 4 is 30 degrees; a guide plate 6 is arranged in the pressure stabilizing chamber 1, and the longitudinal direction of the guide plate 6The cross section is in a smooth transition curve shape, and the fitting equation of the smooth transition curve is
Wherein, a is 197.1; b is 1.46; c is 1.68.
The utility model discloses at the during operation, during cooling air enters into cooling device from air-supply line 5, the air-supply line was mutually vertically with lower plenum axis among the current ring blow cooling device, this kind of setting can produce comparatively obvious cylinder when the cooling air gets into down the plenum and around flowing the disturbance for the increase of the circumference difference rate of air current in the plenum down, the velocity of flow of import department and import opposite position is great promptly, this is unfavorable for the reduction of the inhomogeneous rate of circumference of ring blow wind, and the utility model discloses the air-supply line has certain angle with lower plenum axis, and this helps weakening down the produced disturbance of plenum because cylinder is around flowing the phenomenon.
Through the process, the cooling air is blown to the upper air chamber 2 from the lower air chamber 4 through the rectifying plate 7 and the rectifying chamber 3, the rectifying plate 7 is formed by combining a porous plate with the porosity of 23% and a stainless steel screen with the wire diameter of 0.1 mm and 102 meshes, the rectifying plate is low in manufacturing cost, easy to machine and form and low in damping, the Reynolds number of the cooling air is obviously reduced when the cooling air passes through the rectifying plate, namely the turbulence degree of the cooling air is greatly reduced, and the circumferential non-uniformity of the final circular blowing air is favorably reduced. The cooling air blows off from last plenum chamber 2 and enters into surge chamber 1 through last rectification layer 8, and the effect on last rectification layer 8 is the same with cowling panel 7, and in surge chamber 1, the cooling air takes effect with guide plate 6, as shown in fig. 3, what a plurality of little arrows indicate is the flow field each point speed state of cooling air in surge chamber 1, and to current cooling device, the guide plate is mostly the straight board of slope, and the shape of guide plate longitudinal section is the straight line promptly, compares in this kind of current guide plate, the utility model discloses the special shape of guide plate 6 for the reynolds number change that the cooling air produced when blowing to guide plate 6 is the minimum, and the air-out is more level, even, and the special shape of guide plate has important, indispensable effect to reducing the inhomogeneous rate of ring blowing circumference.
Example two: the included angle between the air inlet pipe 5 and the axis of the lower air chamber 4 is set to be 45 degrees, and the other steps are the same as those of the first embodiment.
Example three: the included angle between the air inlet pipe 5 and the axis of the lower air chamber 4 is set to be 60 degrees, and the other embodiments are the same as the first embodiment.
Claims (5)
1. A low circumferential wind speed non-uniform circular blowing cooling device comprises a rectifying chamber (3), a rectifying plate (7) arranged in the rectifying chamber (3), an upper wind chamber (2) arranged on the upper layer of the rectifying chamber (3), a pressure stabilizing chamber (1) arranged on the upper layer of the upper wind chamber (2), a lower wind chamber (4) arranged on the lower layer of the rectifying chamber (3) and an air inlet pipe (5) connected with the lower wind chamber (4), and is characterized in that a guide plate (6) is arranged in the pressure stabilizing chamber (1), the longitudinal section of the guide plate (6) is in a curve shape with smooth transition, and the pressure stabilizing chamber (1) is in a shape with a large lower part and a small upper part; and an included angle between the air inlet pipe (5) and the axis of the lower air chamber (4) is 30-60 degrees.
2. The annular blowing cooling device with low circumferential wind speed unevenness as claimed in claim 1, wherein the included angle between the air inlet pipe (5) and the axis of the lower air chamber (4) is 45 degrees.
3. The annular blowing cooling device with low circumferential wind speed unevenness as claimed in claim 1, wherein the longitudinal section curve fitting equation of the guide plate (6) is
Wherein, a is 197.1; b is 1.46; c is 1.68.
4. The annular blowing cooling device with low circumferential wind speed unevenness as claimed in claim 1, wherein the rectifying plate (7) is a combination of a perforated plate and a stainless steel screen.
5. A low circumferential wind velocity irregularity annular blowing cooling device as claimed in any of claims 1 to 4, characterized in that an upper rectifying layer (8) is provided between the upper plenum (2) and the plenum (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920122770.1U CN209906935U (en) | 2019-01-24 | 2019-01-24 | Low circumferential wind speed non-uniform rate circular blowing cooling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920122770.1U CN209906935U (en) | 2019-01-24 | 2019-01-24 | Low circumferential wind speed non-uniform rate circular blowing cooling device |
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| Publication Number | Publication Date |
|---|---|
| CN209906935U true CN209906935U (en) | 2020-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920122770.1U Expired - Fee Related CN209906935U (en) | 2019-01-24 | 2019-01-24 | Low circumferential wind speed non-uniform rate circular blowing cooling device |
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| CN (1) | CN209906935U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111893588A (en) * | 2020-07-07 | 2020-11-06 | 诸暨永新色纺有限公司 | Method for manufacturing ice-cold antibacterial POY (pre-oriented yarn) |
-
2019
- 2019-01-24 CN CN201920122770.1U patent/CN209906935U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111893588A (en) * | 2020-07-07 | 2020-11-06 | 诸暨永新色纺有限公司 | Method for manufacturing ice-cold antibacterial POY (pre-oriented yarn) |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200107 Termination date: 20210124 |