Chemical fiber side-blowing cooling device

Abstract

The utility model relates to a chemical fiber yarn side blowing cooling device which comprises n layers of cooling unit modules, n is a natural number larger than 0, each cooling unit module comprises a cooling part and a side air pipe, the interior of each cooling part is hollow to form a yarn passing channel, k-1 connecting air channel units are arranged on the right side of the kth layer of cooling unit module, k is larger than 0 and smaller than or equal to n, and k is a natural number; the pth connecting air duct unit of the kth layer is communicated with the (p-1) th connecting air duct unit of the (k-1) th layer, p is larger than 0 and smaller than or equal to (k-1), p is a natural number, and when p-1 is equal to 0, the pth connecting air duct unit of the kth layer is communicated with the side air pipe of the (k-1) th layer; and the nth layer of side air pipe and the connecting air duct unit are respectively and independently communicated with the cold air source device. According to the utility model, the wind force applied to the chemical fiber is uniform and proper, the difference of the wind speeds applied to different positions of the chemical fiber is reduced, and the finished product quality of the chemical fiber is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical fiber production equipment, in particular to a chemical fiber yarn side-blowing cooling device. Background Art

[0002] The forming of chemical fiber is the process of extruding the spinning fluid from the spinneret at a certain flow rate and cooling and solidifying it into fiber. It is one of the most important links in the production process of chemical fiber. Chemical fiber forming is also called spinning. The basic process of spinning forming includes the preparation of spinning melt, the extrusion of melt from the spinneret, the elongation and thinning of the extruded melt stream, cooling and solidification, and the oiling and winding of the solidified filaments. In general, from polymer to filament is only a physical state change caused by the heat transfer process, that is, the solid polymer is transformed into a flowing viscous fluid at high temperature and extruded from the spinneret under the spinning pressure. Between the spinneret and the winding device, the filament must be stretched to the required fineness and fully cooled and solidified to become a solid filament. Due to the different diameters of the target chemical fiber, the cooling and solidification time is also different. The larger the diameter of the chemical fiber, the longer the cooling time is required. However, in the existing chemical fiber production line, in the cooling and solidification link of the chemical fiber, according to the direction of the cooling medium blowing, it can be divided into horizontal blowing and vertical blowing, and horizontal blowing can be divided into side blowing and ring blowing.

[0003] In order to meet the requirements of cooling time, the existing side-blowing devices usually try to increase the height of the side-blowing devices. For example, Chinese patent CN216972752U discloses a side-blowing device, which includes a side-blowing body and a corridor connected to the side-blowing body; the side-blowing body is connected to the air-conditioning equipment to blow cooling air to the spinning; the side-blowing device also includes a humidifying device for conveying water mist to the side-blowing body and the corridor, the humidifying device includes a humidifier and an air supply pipeline connected to the humidifier, and the air supply pipeline is connected to the side-blowing body or the corridor. In the side-blowing device in the above-mentioned prior art, the chemical fiber yarn enters from the top of the side-blowing main body, and the texture of the chemical fiber yarn at the upper part is softer than that of the chemical fiber yarn at the lower part. When the diameter of the chemical fiber to be cooled is large, if the wind speed is increased to achieve the cooling purpose, the chemical fiber yarn at the upper part will be subjected to excessive wind force, resulting in uneven thickness of the chemical fiber yarn, which will cause defective products in the production process of the chemical fiber. Therefore, the cooling time can only be extended by increasing the height of the side-blowing main body, so that the chemical fiber yarn can be fully cooled. When the height of the side-blowing main body is high, the wind speed in the upper and lower parts of the side-blowing main body will be uneven, and the wind force at the top will be too weak or the wind force at the bottom will be too strong. Utility Model Content

[0004] The utility model is intended to provide a chemical fiber side-blowing cooling device to solve the deficiencies in the prior art. The technical problem to be solved by the utility model is achieved through the following technical solutions.

[0005] A side-blowing cooling device for chemical fiber yarns comprises n layers of fixedly connected cooling unit modules, n being a natural number greater than 0, the cooling unit module comprising a cooling portion and a side air duct, a rectifying grid being arranged between the side air duct and the cooling portion, the cooling portion being hollow inside to form a wire passage, the side air duct being arranged on the right side of the cooling portion and being connected to the wire passage of the cooling portion on its left side, and k-1 connecting air duct units being arranged on the right side of the k-th layer of cooling unit modules, wherein 0<k≤n, and k is A natural number; the p-th connecting air duct unit of the k-th layer is connected to the p-1-th connecting air duct unit of the k-1-th layer, 0<p≤k-1, and p is a natural number, wherein, when p-1=0, the p-th connecting air duct unit of the k-th layer is connected to the side air duct of the k-1-th layer; the side air duct of the n-th layer and the n-1 connecting air duct units on its right side are respectively independently connected to the cold air source device, and a control valve is arranged between the side air duct of the n-th layer and the n-1 connecting air duct units on its right side and the cold air source device.

[0006] Preferably, a first openable and closable inspection door is provided on the left side of the cooling unit.

[0007] Preferably, a second openable and closable inspection door is provided on the right side of the side air duct on the first floor.

[0008] Preferably, the rectifying grid is a porous plate.

[0009] Preferably, the lower ends of the n-th layer cooling unit modules and the connecting air duct units are placed in grooves reserved on the ground.

[0010] Preferably, the n-th layer of cooling unit modules and the connecting air duct units are fixedly connected to the ground via a supporting frame.

[0011] Preferably, the height of the cooling part is 800-1800 mm.

[0012] In the present utility model, the number of cooling unit modules increases gradually from top to bottom. The number of connecting air duct units on the right side of each layer of cooling unit modules increases gradually from left to right. The chemical fiber cooling device in this embodiment adopts a side-blowing cooling method, which is composed of n cooling unit modules stacked up and down. The cooling parts of the cooling unit modules stacked up and down are aligned with each other, and the internal wire passages are interconnected to accommodate the chemical fiber to be cooled; the right end of the cooling part is interconnected with the left end of the side air duct, and the side air duct is connected to the cold air source device, and the cold air flow is dispersed by the rectifier grid and then evenly blown into the wire passage laterally to fully cool the chemical fiber in the wire passage. When n>1, the side air duct cannot be directly connected to the cold air source device, and is then connected to the cold air source device through the connecting air duct unit below it, so that the cooling part of each cooling unit module has an independent air supply channel to supply cold air. The setting of the control valve facilitates the adjustment of the wind speed of each air supply channel, so that different height segments of the chemical fiber yarn can be cooled under appropriate wind force.

[0013] The utility model provides a side-blowing cooling device for chemical fiber yarns, which is set as a multi-stage structure. Compared with the prior art, under the premise of a longer cooling time, the wind force received by the chemical fiber yarns in the wire passage of each cooling section can still be uniform and of appropriate strength, and the difference in wind speed received by the chemical fiber yarns at different positions can be minimized as much as possible, which can not only ensure that the chemical fiber yarns obtain the corresponding cooling effect, but also avoid the excessive wind force received by the softer parts of the upper end of the chemical fiber yarns, resulting in uneven thickness or deformation of the chemical fiber yarns, and also avoid the lower end of the chemical fiber yarns that need to be cooled in place from not being fully cooled due to insufficient wind force, thereby improving the quality of the finished chemical fiber yarns. In addition, the cooling unit module and the connecting air duct can be modularly prefabricated, which is more conducive to mass production, thereby saving production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0015] Figure 2 A schematic structural diagram of another angle of an embodiment of the utility model;

[0016] Figure 3 This is a structural schematic diagram of another angle of an embodiment of the utility model;

[0017] The reference numerals in the accompanying drawings are, in order: 1, first cooling unit, 11, first cooling part, 111, first inspection door, 12, first side air duct, 121, second inspection door, 2, second cooling unit, 21, second cooling part, 22, second side air duct, 3, connecting air duct unit, 4, wire passage, 5, ground, 6, supporting frame. DETAILED DESCRIPTION

[0018] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0019] In the present utility model, the left and right directions are Figure 1 The left and right directions shown are subject to the

[0020] A side-blowing cooling device for chemical fiber yarns, the improvement of which is that: it comprises n layers of fixedly connected cooling unit modules, n is a natural number greater than 0, the cooling unit module comprises a cooling part and a side air duct, a rectifying grid is arranged between the side air duct and the cooling part, the inside of the cooling part is hollow to form a wire passage 4, the side air duct is arranged on the right side of the cooling part and is connected to the wire passage 4 of the cooling part on its left side, and k-1 connecting air duct units 3 are arranged on the right side of the k-th layer of cooling unit modules, wherein 0< k≤n, and k is a natural number; the p-th connecting air duct unit 3 of the k-th layer is connected to the p-1-th connecting air duct unit 3 of the k-1-th layer, 0<p≤k-1, and p is a natural number, wherein, when p-1=0, the p-th connecting air duct unit 3 of the k-th layer is connected to the side air duct of the k-1-th layer; the side air duct of the n-th layer and the n-1 connecting air duct unit 3 are independently connected to the cold air source device, and a control valve is arranged between the side air duct of the n-th layer and the n-1 connecting air duct unit 3 and the cold air source device.

[0021] In this embodiment, the number of cooling unit modules increases gradually from top to bottom. The number of connecting air duct units on the right side of each layer of cooling unit modules increases gradually from left to right. The chemical fiber cooling device in this embodiment adopts a side-blowing cooling method, which is composed of n cooling unit modules stacked up and down. The cooling parts of the cooling unit modules stacked up and down are aligned with each other, and the wire passages 4 inside are interconnected to accommodate the chemical fiber to be cooled; the right end of the cooling part is interconnected with the left end of the side air duct, and the side air duct is connected to the cold air source device, and the cold air flow is evenly blown into the wire passage 4 laterally after being dispersed by the rectifying grid, so that the chemical fiber in the wire passage 4 is fully cooled. When n>1, the side air duct cannot be directly connected to the cold air source device, and is then connected to the cold air source device through the connecting air duct unit 3 below it, so that the cooling part of each cooling unit module has an independent air supply channel to supply cold air. The setting of the control valve facilitates the adjustment of the wind speed of each air supply channel, so that different height segments of the chemical fiber yarn are cooled under appropriate wind force.

[0022] The present embodiment provides a side-blowing cooling device for chemical fiber yarns, which sets the chemical fiber yarn cooling device as a multi-stage structure. Compared with the prior art, when the chemical fiber yarns need to cool for a long time, under the premise of a high height of the cooling device, the wind force received by the chemical fiber yarns in the wire passage 4 of each cooling section can still be ensured to be uniform and of appropriate strength, and the difference in wind speed received by the chemical fiber yarns at different positions can be minimized as much as possible, which can not only ensure that the chemical fiber yarns obtain the corresponding cooling effect, but also avoid the excessive wind force received by the softer parts of the upper end of the chemical fiber yarns, resulting in uneven thickness or deformation of the chemical fiber yarns, and also avoid the lower end of the chemical fiber yarns that need to be cooled in place due to insufficient wind force and cannot be fully cooled, thereby improving the finished product quality of the chemical fiber yarns. In addition, the cooling unit module and the connecting air duct can be modularly prefabricated. When in use, it is only necessary to determine the height of the chemical fiber cooling device according to the cooling time required for the chemical fiber yarns, thereby determining the number of cooling unit modules and the number of connecting air duct units to be used, and then assembling them, which is more conducive to mass production, thereby saving production costs.

[0023] Reference Figures 1 to 3 As shown, when n=2, the number of cooling unit modules is two and they are stacked up and down, and the cooling unit modules include a first cooling unit 1 and a second cooling unit 2, the first cooling unit 1 includes a first cooling part 11 and a first side air duct 12, the second cooling unit 2 includes a second cooling part 21 and a second side air duct 22, and a connecting air duct unit 3 is arranged on the right side of the second side air duct 22. The second side air duct 22 is connected to the cold air source device, and the cold air in the second cooling part 21 located on the second layer is supplied by the second side air duct 22; the upper end of the connecting air duct unit 3 on the right side of the second side air duct 22 is connected to the first side air duct 12, and the lower end is connected to the cold air source device, and the cold air flowing out of the cold air source device flows through the connecting air duct unit 3 and the first side air duct 12 in sequence, and is rectified by the rectifying grid and then passes into the wire passage 4 in the first cooling part 11. A control valve is arranged between the second side air duct 22 and the cold air source device, and a control valve is also arranged between the connecting air duct unit 3 and the cold air source device. During operation, the wind speed of the cold air entering the second side air duct 22 and the connecting air duct unit 3 can be adjusted respectively by the control valve, so that the upper half and the lower half of the chemical fiber yarn are both subjected to the appropriate cold air flow, so that the cooling effect of the chemical fiber yarn is better.

[0024] Similarly, when n=3, there is no need to set a connecting duct unit on the right side of the cooling unit module of the first layer, and the cooling unit module of the first layer includes a cooling part I and a side air duct I; a connecting duct unit 3 is set on the right side of the cooling unit module of the second layer, hereinafter referred to as connecting duct II, and the cooling unit module of the second layer includes a cooling part II and a side air duct II; two connecting duct units 3 are set on the right side of the cooling unit module of the third layer, hereinafter referred to as connecting duct IIIa and connecting duct IIIb respectively, and the cooling unit module of the third layer includes a cooling part III and a side air duct III. The side air duct I is connected with the connecting air duct II, the connecting air duct IIIb and the cold air source device in sequence to form an air supply channel I, and the air supply channel I is used to introduce cold air into the wire passage 4 of the cooling part I; the side air duct II is connected with the connecting air duct IIIa and the cold air source device in sequence to form an air supply channel II, and the air supply channel II is used to introduce cold air into the wire passage of the cooling part II; the side air duct III is connected with the cold air source device to form an air supply channel III, and the air supply channel III is used to introduce cold air into the wire passage of the cooling part III; the wind speed in the air supply channel I, the air supply channel II and the air supply channel III can be adjusted respectively by the control valve, so that the upper, middle and lower sections of the chemical fiber yarn are all subjected to appropriate cold air flow, thereby achieving a better cooling effect.

[0025] When n>3, the same applies and no further details are given.

[0026] Furthermore, a first inspection door 111 that can be opened and closed is provided on the left side of the cooling unit.

[0027] In this embodiment, the first inspection door 111 is provided to facilitate inspection of the cooling unit from the left side and to observe the state of the chemical fiber and the operation state of the equipment at all times. The rectifying grid is prone to blockage after long-term use. The rectifying grid between the cooling unit and the side air duct can also be cleaned through the first inspection door 111 or the rectifying grid can be disassembled for cleaning.

[0028] Furthermore, a second inspection door 121 that can be opened and closed is provided on the right side of the side air duct on the first floor.

[0029] In this embodiment, the second inspection door 121 is provided to facilitate cleaning of the first layer of rectifier grids from the right side or cleaning after the rectifier grids are disassembled.

[0030] Furthermore, the rectifying grid is a porous plate.

[0031] Furthermore, the lower end of the n-th layer cooling unit module and the connecting air duct unit 3 is placed in a groove reserved on the ground 5 .

[0032] In this embodiment, a groove is set on the ground 5, and the lower end of the cooling unit module of the nth layer and the connecting air duct unit 3 are placed in the groove, which can further reduce the height of the chemical fiber cooling device above the ground, so as to obtain a higher chemical fiber cooling height when necessary, to extend the cooling time and obtain a better cooling effect.

[0033] Furthermore, the n-th layer of cooling unit modules and the connecting air duct unit 3 are fixedly connected to the ground 5 via a supporting frame 6 .

[0034] Furthermore, the height of the cooling part is 800-1800 mm.

[0035] It should be noted that the above detailed descriptions are exemplary and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the art to which the present application belongs.

[0036] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments described in the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0037] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0038] In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units that are not explicitly listed or inherent to these processes, methods, products, or apparatuses.

[0039] For ease of description, spatially relative terms, such as "above", "above", "on the upper surface of", "above", etc., may be used herein to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" may include both "above" and "below". The device may also be positioned in other different ways, such as rotated 90 degrees or in other orientations, and the spatially relative descriptions used herein are interpreted accordingly.

[0040] In the above detailed description, reference is made to the accompanying drawings, which form a part of this document. In the accompanying drawings, similar symbols typically identify similar components unless the context indicates otherwise. The illustrated embodiments described in the detailed description, drawings, and claims are not meant to be limiting. Other embodiments may be used, and other changes may be made, without departing from the spirit or scope of the subject matter presented herein.

[0041] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A chemical fiber side-blowing cooling device, characterized in that: The invention comprises n layers of fixedly connected cooling unit modules, wherein n is a natural number greater than 0, the cooling unit modules comprising a cooling part and a side air duct, a rectifying grid is arranged between the side air duct and the cooling part, the interior of the cooling part is hollow to form a wire passageway (4), the side air duct is arranged on the right side of the cooling part and is connected to the wire passageway (4) of the cooling part on its left side, and k-1 connecting air duct units (3) are arranged on the right side of the k-th layer of cooling unit modules, wherein 0<k≤n, and k is a natural number; the k-th layer of the k-th layer of the cooling unit modules comprises k-1 connecting air duct units (3), ... The p connecting air duct units (3) are connected to the p-1th connecting air duct unit (3) on the k-1th layer, 0<p≤k-1, and p is a natural number, wherein when p-1=0, the p-th connecting air duct unit (3) on the k-1th layer is connected to the side air duct on the k-1th layer; the side air duct on the nth layer and the n-1 connecting air duct units (3) on the right side thereof are independently connected to the cold air source device respectively, and a control valve is provided between the side air duct on the nth layer and the n-1 connecting air duct units (3) on the right side thereof and the cold air source device.

2. A chemical fiber side-blowing cooling device according to claim 1, characterized in that: A first inspection door (111) that can be opened and closed is arranged on the left side of the cooling unit.

3. The side-blowing cooling device for chemical fiber according to claim 1, characterized in that: A second inspection door (121) that can be opened and closed is provided on the right side of the side air duct on the first floor.

4. The side-blowing cooling device for chemical fiber according to claim 1, characterized in that: The rectifying grid is a porous plate.

5. The side-blowing cooling device for chemical fiber according to claim 1, characterized in that: The lower ends of the n-th layer cooling unit modules and the connecting air duct unit (3) are placed in grooves reserved on the ground (5).

6. A chemical fiber side-blowing cooling device according to claim 5, characterized in that: The nth layer of cooling unit modules and the connecting air duct unit (3) are fixedly connected to the ground (5) via a supporting frame (6).

7. The side-blowing cooling device for chemical fiber according to claim 1, characterized in that: The height of the cooling part is 800-1800 mm.

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