Steam drafting equipment

Abstract

The utility model relates to the technical field of fiber production, in particular to steam drafting equipment which comprises a steam drafting chamber, a steam pipeline and a cooling water pipeline. Wherein the steam pipeline extends in the steam traction chamber in the horizontal direction, the steam pipeline penetrates through the steam traction chamber, steam inlet holes and steam exhaust holes are formed in the pipe wall of the steam pipeline, and fibers are drafted in the steam pipeline; the cooling water pipeline is arranged below the steam pipeline, a preset distance is formed between the cooling water pipeline and the steam pipeline in the vertical direction, and the steam exhaust holes face the cooling water pipeline. By means of the design, redundant steam can be discharged from the steam exhaust holes and converted into condensate water under the action of temperature difference to fall into the steaming and drawing chamber, the condensate water is prevented from being gathered in the steam pipeline, the phenomenon that the drawing effect is affected due to the fact that the humidity in the steam pipeline is too large is avoided, and the fiber preparation success rate is increased.

Description

Technical Field

[0001] The present application relates to the technical field of fiber production, and in particular to a steam drawing device. Background Art

[0002] The fiber production method includes drawing the dry and dense fiber polymer in high-pressure steam to thin the fiber polymer to obtain fibers.

[0003] In current steam drawing equipment, steam condenses in the steam pipe, and condensed water easily accumulates in the steam pipe, causing excessive humidity in the steam pipe, thereby affecting the drawing effect and reducing the success rate of fiber preparation. Utility Model Content

[0004] In order to solve the above technical problems, the present application provides a steam drawing device, which accelerates the uniform condensation speed and improves the success rate of fiber preparation.

[0005] According to some embodiments, the present application provides a steam drafting device, comprising:

[0006] Steaming room;

[0007] A steam pipe, wherein the steam pipe extends in the horizontal direction in the steam drawing chamber and passes through the steam drawing chamber, a steam inlet hole and a steam exhaust hole are arranged on the pipe wall of the steam pipe, and the fiber is drawn in the steam pipe;

[0008] A cooling water pipeline is arranged below the steam pipeline, and the cooling water pipeline is spaced apart from the steam pipeline by a preset distance in the vertical direction, and the steam exhaust hole is arranged toward the cooling water pipeline.

[0009] In some embodiments of the present application, a plurality of the steam exhaust holes are provided, and the plurality of the steam exhaust holes are arranged at intervals along the axial direction of the steam pipe.

[0010] In some embodiments of the present application, the preset distance ranges from 2.5 to 3.5 meters, the distance between the cooling water pipe and the bottom wall of the steam-drawing chamber ranges from 0.3 to 0.7 meters, and the distance between the steam pipe and the top wall of the steam-drawing chamber ranges from 0.1 to 0.3 meters.

[0011] In some embodiments of the present application, the steam stretching equipment further includes a pressure sensor, a temperature sensor and a humidity sensor, and the pressure sensor, the temperature sensor and the humidity sensor are arranged in the steam pipe or in the steam stretching chamber.

[0012] In some embodiments of the present application, the steam stretching equipment also includes a steam generating device, a steam inlet pipe and a steam valve, wherein the steam inlet pipe connects the steam generating device and the steam inlet hole, the steam valve is arranged on the steam inlet pipe, and the pressure sensor, the humidity sensor and the temperature sensor are all electrically connected to the controller.

[0013] In some embodiments of the present application, the steam drawing equipment further comprises a condensate outlet, a condensate pipe and a condensate valve, wherein the condensate outlet is arranged on the side wall of the steam drawing chamber, and in the vertical direction, the condensate outlet is located below the cooling water pipe and close to the bottom wall of the steam drawing chamber;

[0014] The condensate water pipeline is communicated with the condensate water outlet, and the condensate water valve is arranged on the condensate water pipeline.

[0015] In some embodiments of the present application, the condensed water pipeline is connected to the steam generating device to achieve recycling of the condensed water.

[0016] In some embodiments of the present application, the steam drawing equipment further comprises a cooling water generating device, the cooling water pipeline is a coil spirally laid inside the steam drawing chamber, and the water inlet and the water outlet of the cooling water pipeline are both connected to the cooling water generating device;

[0017] The cooling water generating device is electrically connected to the temperature sensor, and the cooling water generating device is used to change the temperature of the cooling water in the cooling water pipeline.

[0018] In some embodiments of the present application, the temperature range of the cooling water in the cooling water pipeline is 90±5°C.

[0019] In some embodiments of the present application, the pressure range in the steam pipeline is 0.50±0.02 MPa, the temperature range is 160±5° C., and the relative humidity range is 50±5%.

[0020] The steam drawing equipment provided by the present application can achieve the following beneficial technical effects:

[0021] The steam drawing equipment provided by the present application arranges a cooling water pipe in the steam drawing chamber and below the steam pipe, and the exhaust hole of the steam pipe is arranged toward the cooling water pipe. Excess steam can be directly sprayed out from the exhaust hole toward the cooling water pipe, and converted into condensed water under the action of temperature difference and falls into the steam drawing chamber, thereby avoiding the accumulation of condensed water in the steam pipe, and further avoiding the influence of excessive humidity in the steam pipe on the drawing effect, thereby improving the success rate of fiber preparation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings herein are incorporated into the specification and constitute a part of the specification to illustrate embodiments of the present application and are used together with the description to explain the principles of the present application. In these drawings, similar reference numerals are used to represent similar elements. The drawings described below are some embodiments of the present application, rather than all embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a structural schematic diagram of a steam drawing device shown in one embodiment of the present application;

[0024] Figure 2 It is a schematic diagram of the flow direction of steam and condensed water shown in one embodiment of the present application.

[0025] Reference numerals:

[0026] 100, steaming chamber; 110, bottom wall; 120, side wall; 130, top wall;

[0027] 210, steam inlet hole; 220, steam exhaust hole; 230, steam generating device; 240, steam inlet pipe; 250, steam valve;

[0028] 300, fiber;

[0029] 400. cooling water pipeline; 410. water inlet; 430. cooling water generating device;

[0030] 500, pressure sensor; 600, temperature sensor; 700, humidity sensor;

[0031] 800. Condensate outlet; 810. Condensate pipe; 820. Condensate valve. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application. It should be noted that, in the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other arbitrarily.

[0033] Fiber polymer, also known as fiber precursor, is a polymer raw filament used to produce fibers. Fiber polymer is stretched at high times in high-pressure steam and thinned to obtain fibers. The high-pressure steam environment for fiber stretching needs to maintain constant temperature, humidity and pressure. Too high temperature and humidity will affect the stretching effect, thereby reducing the success rate of fiber preparation.

[0034] In order to improve the success rate of fiber preparation, an embodiment of the present application provides a steam drawing device, by arranging a cooling water pipe in the steam drawing chamber and below the steam pipe, and the exhaust hole of the steam pipe is arranged toward the cooling water pipe, excess steam can be directly sprayed out from the exhaust hole toward the cooling water pipe, and converted into condensed water under the action of temperature difference and fall into the steam drawing chamber, thereby avoiding the accumulation of condensed water in the steam pipe, and further avoiding excessive humidity in the steam pipe affecting the drawing effect, thereby improving the success rate of fiber preparation.

[0035] The steam drawing equipment provided according to the present application is described in detail below in conjunction with the accompanying drawings.

[0036] Figure 1 and Figure 2 In the figure, the x-axis is the horizontal direction and the y-axis is the vertical direction.

[0037] An exemplary embodiment of the present application provides a steam drawing device, such as Figure 1 As shown, the steam drawing equipment includes a steam drawing chamber 100, a steam pipe and a cooling water pipe 400. The steam drawing chamber 100 is a cubic space surrounded by a bottom wall 110, a top wall 130 and four side walls 120. The steam pipe extends in a horizontal direction and passes through the steam drawing chamber 100, and the fiber 300 is drawn in the steam pipe. The pipe wall of the steam pipe is provided with a steam inlet hole 210 and a steam exhaust hole 220, which are used for steam to enter and exit the steam pipe respectively.

[0038] The cooling water pipe 400 is arranged inside the steam chamber 100, and the water inlet 410 and the water outlet of the cooling water pipe 400 are arranged on the side wall 120 of the steam chamber 100. The cooling water pipe 400 is located below the steam pipe in the y-axis direction, and the cooling water pipe 400 is spaced apart from the steam pipe by a preset distance; the steam exhaust hole 220 is arranged toward the cooling water pipe 400. After the steam is sprayed out from the steam exhaust hole 220, due to the arrangement of the steam pipe and the cooling water pipe 400, there is a temperature difference inside the steam chamber 100, and the sprayed steam is converted into condensed water under the action of the temperature difference and falls to the bottom of the steam chamber 100.

[0039] It should be noted that the fiber 300 in this embodiment may be carbon fiber. In other embodiments, the fiber 300 may also be other inorganic fiber or organic fiber, such as glass fiber, ceramic fiber, polyester fiber, etc., which is not limited here.

[0040] When the droplets contact the surface of the fiber 300, they will vaporize. The vaporization absorbs heat and lowers the temperature of the fiber 300 at that position, which is likely to cause fuzz or even broken fibers during drawing. In this embodiment, a cooling water pipe 400 is arranged at a preset distance below the steam pipe in the steam-drawing chamber 100, and the exhaust hole 220 of the steam pipe is arranged toward the cooling water pipe 400. After the steam is sprayed out from the exhaust hole 220, it is quickly converted into condensed water due to the temperature difference, thereby avoiding the accumulation of condensed water in the steam pipe, thereby avoiding excessive humidity in the steam pipe that affects the drawing effect, and improving the preparation success rate of the fiber 300.

[0041] In some embodiments, the cooling water pipe 400 is arranged below the steam pipe, and the cooling water pipe 400 is separated from the steam pipe by a preset distance, and the projections of the cooling water pipe 400 and the steam pipe on the horizontal plane at least partially overlap. Such a design can ensure that the temperature difference is more uniform in the steam drawing chamber 100, and the steam sprayed from the steam pipe can be better condensed, thereby improving the condensation effect and ensuring the success rate of preparing the fiber 300.

[0042] In some embodiments, Figure 1 As shown, a plurality of steam exhaust holes 220 are arranged on the steam pipe, and the plurality of steam exhaust holes 220 are arranged at intervals along the direction in which the steam pipe extends. The arrangement of the plurality of steam exhaust holes 220 is conducive to the discharge of steam, and can disperse the steam in the steam-drawing chamber 100, which is more conducive to steam condensation, improves the condensation effect, and thereby improves the success rate of drawing.

[0043] In some embodiments, the distance between the cooling water pipe 400 and the steam pipe in the y-axis direction, that is, the preset distance, is in the range of 2.5-3.5 meters. Setting the cooling water pipe 400 in this range can increase the steam flow distance and improve the condensation effect; in addition, the distance between the cooling water pipe 400 and the bottom wall 110 of the steam-drawing chamber 100 is in the range of 0.3-0.7 meters, and the distance between the steam pipe and the top wall 130 of the steam-drawing chamber 100 is in the range of 0.1-0.3 meters.

[0044] In some embodiments, continue to refer to Figure 1 The steam stretching device further includes a pressure sensor 500, a temperature sensor 600 and a humidity sensor 700. In this embodiment, the pressure sensor 500, the temperature sensor 600 and the humidity sensor 700 are all arranged in the steam pipe.

[0045] In other embodiments, since the steam pipe is relatively thin, the arrangement of the sensor will occupy the space for the fiber 300 to be stretched. In this case, the pressure sensor 500, the temperature sensor 600 and the humidity sensor 700 are arranged in the steam-drawing chamber 100, for example, on the top wall 130 of the steam-drawing chamber 100. Since the steam pipe is 0.1-0.3 meters away from the top wall 130 of the steam-drawing chamber 100, which is relatively close, the values ​​detected by the sensors arranged on the top wall 130 of the steam-drawing chamber 100 are similar to those detected by the sensors arranged inside the steam pipe.

[0046] In some embodiments, the steam stretching equipment also includes a steam generating device 230, a steam inlet pipe 240 and a steam valve 250, wherein the steam generating device 230 is used to generate steam, for example, by heating water into water vapor, and the steam generated by the steam generating device 230 passes through the steam inlet pipe 240 and enters the steam pipe from the steam inlet port, and a steam valve 250 is provided on the steam inlet pipe 240.

[0047] The pressure sensor 500, the temperature sensor 600 and the humidity sensor 700 are all electrically connected to the controller, and the controller is connected to the valve to control the opening of the steam valve 250. The opening of the steam valve 250 is automatically adjusted by comparing the real-time data sent back by each sensor with the target range. The opening of the steam valve 250 can affect the pressure, temperature and humidity in the steam pipe, thereby realizing automatic adjustment of the temperature, humidity and pressure of the fiber 300 drawing environment, so that the fiber 300 drawing environment maintains a constant temperature, constant humidity and constant pressure, thereby improving the success rate of fiber 300 preparation.

[0048] In some embodiments, the steam drawing equipment further includes a condensate outlet 800, a condensate pipe 810 and a condensate valve 820, wherein the condensate outlet 800 is arranged on the side wall 120 of the steam drawing chamber 100, and in the vertical direction, the condensate outlet 800 is located below the cooling water pipe 400 and close to the bottom wall 110 of the steam drawing chamber 100. In this embodiment, the lower edge of the condensate outlet 800 can be flush with the bottom wall 110 of the steam drawing chamber 100 to facilitate the discharge of condensate.

[0049] The condensate water pipe 810 is connected to the condensate water outlet 800, and the condensate water valve 820 is set on the condensate water pipe 810. When the condensate water valve 820 is opened, the condensate water in the steam chamber 100 is discharged from the condensate water outlet 800; the condensate water valve 820 is electrically connected to the controller, and the controller is connected to the humidity sensor 700. When the humidity value sent back by the humidity sensor 700 is greater than the target range, the controller controls the condensate water valve 820 to open and discharge the condensate water in time to reduce the humidity in the steam chamber 100.

[0050] In other embodiments, the condensate valve 820 can be kept open while ensuring the pressure of the steam chamber 100. When the ambient humidity exceeds the target range, a controller can increase the opening of the condensate valve 820, which can also achieve the technical effect of discharging the condensate in time.

[0051] In some embodiments, Figure 1 As shown, the condensate pipe 810 is connected to the steam generating device 230, that is, the first end of the condensate pipe 810 is connected to the condensate outlet 800, and the second end of the condensate pipe 810 is connected to the steam generating device 230; with such a design, the condensate converted into steam in the steam chamber 100 flows back to the steam generating device 230 through the condensate pipe 810, and then converted into water vapor by the steam generating device 230 to enter the steam pipe for use, thus forming a cycle, realizing the recycling of condensate and saving resources.

[0052] In some embodiments, Figure 1 As shown, the steam drawing equipment further includes a cooling water generating device 430, which is connected to a cooling water pipe 400. The cooling water pipe 400 may be a coil laid inside the steam drawing chamber 100, and the coil-shaped cooling water pipe 400 may better achieve the condensation of steam.

[0053] The water inlet 410 and the water outlet of the cooling water pipe 400 are connected to the cooling water generating device 430, and the cooling water generating device 430 is electrically connected to the temperature sensor 600. The cooling water generating device 430 changes the temperature of the cooling water in the cooling water pipe 400 according to the relationship between the temperature value sent back by the temperature sensor 600 and the target temperature index, thereby realizing automatic adjustment of the temperature in the steaming chamber 100.

[0054] In some embodiments, the temperature range of the cooling water is 90°C ± 5°C.

[0055] In some embodiments, the pressure in the steam pipe needs to be maintained at 0.50±0.02MPa, the temperature needs to be maintained at 160±5℃, and the relative humidity needs to be maintained at 50±5%. The above ranges have been verified by technicians in this field. When the stretching environment of the steam stretching equipment is maintained within the above range, it can achieve: the number of daily broken wires is reduced by more than 50%, the daily output of broken wires is reduced by more than 35%, the rate of high-quality products reaches more than 80%, the amount of raw silk with water is reduced to 0, and the daily waste silk is reduced by more than 50%; in addition, through the cooperation of multiple sensors and controllers, the pressure, humidity and temperature of the steam-stretching chamber 100 are automatically controlled, human resources are saved, and the risk level of the steam-stretching position is successfully controlled to the lowest level.

[0056] The process of producing fiber 300 using the above steam drawing device is as follows:

[0057] The steam pipe runs through the steam drawing chamber 100, and the fiber 300 polymer passes through the steam pipe and is drawn into the fiber 300 in the steam pipe. The steam generating device 230 and the cooling water generating device 430 are first started, and the steam valve 250 is opened to allow the steam to enter the steam pipe through the steam inlet pipe 240, and the steam is discharged from the steam pipe through the exhaust hole 220. When the values ​​transmitted back to the controller by the temperature sensor 600, the pressure sensor 500 and the humidity sensor 700 in the steam drawing chamber 100 reach the set range, the drawing begins. During the drawing process, the opening of the steam valve 250 is adjusted in real time by the controller, the opening and closing of the condensate valve 820 is adjusted in real time by the controller, and the temperature of the cooling water is adjusted in real time by the cooling water generating device 430, so as to realize the constant pressure, constant temperature and constant humidity of the drawing environment.

[0058] The steam drawing equipment provided in this embodiment is configured by arranging a cooling water pipe 400 at a preset distance below the steam pipe in the steam drawing chamber 100, and the exhaust hole 220 of the steam pipe is arranged toward the cooling water pipe 400. After the steam is sprayed out from the exhaust hole 220, it is quickly converted into condensed water under the action of the temperature difference, thereby avoiding the accumulation of condensed water in the steam pipe, thereby avoiding excessive humidity in the steam pipe affecting the drawing effect and increasing energy consumption, thereby improving the success rate of preparing the fiber 300, and achieving the purposes of stable production, quality improvement, energy saving, cost reduction and safety in the production of the fiber 300.

[0059] The contents described above may be implemented individually or in combination in various ways, and these variations are all within the protection scope of this application.

[0060] It should be noted that, in the description of the present application, the terms "upper", "lower", "front", "back", etc., indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present application.

[0061] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0062] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0063] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0064] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples, without contradiction.

[0065] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A steam drawing device, characterized in that: The steam drawing equipment comprises: Steaming room; A steam pipe, wherein the steam pipe extends in the horizontal direction in the steam drawing chamber and passes through the steam drawing chamber, a steam inlet hole and a steam exhaust hole are arranged on the pipe wall of the steam pipe, and the fiber is drawn in the steam pipe; A cooling water pipeline is arranged below the steam pipeline, and the cooling water pipeline is spaced apart from the steam pipeline by a preset distance in the vertical direction, and the steam exhaust hole is arranged toward the cooling water pipeline.

2. The steam drawing equipment according to claim 1, characterized in that: A plurality of the steam exhaust holes are provided, and the plurality of the steam exhaust holes are arranged at intervals along the axial direction of the steam pipe.

3. The steam drawing equipment according to claim 1, characterized in that: The preset distance ranges from 2.5 to 3.5 meters, the distance between the cooling water pipe and the bottom wall of the steam-drawing chamber ranges from 0.3 to 0.7 meters, and the distance between the steam pipe and the top wall of the steam-drawing chamber ranges from 0.1 to 0.3 meters.

4. The steam drawing equipment according to claim 1, characterized in that: The steam drawing equipment further comprises a pressure sensor, a temperature sensor and a humidity sensor, wherein the pressure sensor, the temperature sensor and the humidity sensor are arranged in the steam pipe or in the steam drawing chamber.

5. The steam drawing equipment according to claim 4, characterized in that: The steam drawing equipment also includes a steam generating device, a steam inlet pipe and a steam valve, wherein the steam inlet pipe connects the steam generating device and the steam inlet hole, the steam valve is arranged on the steam inlet pipe, and the pressure sensor, the humidity sensor and the temperature sensor are all electrically connected to the controller.

6. The steam drawing device according to claim 5, characterized in that: The steam drawing equipment further comprises a condensate outlet, a condensate pipe and a condensate valve, wherein the condensate outlet is arranged on the side wall of the steam drawing chamber, and in the vertical direction, the condensate outlet is located below the cooling water pipe and close to the bottom wall of the steam drawing chamber; The condensate water pipeline is communicated with the condensate water outlet, and the condensate water valve is arranged on the condensate water pipeline.

7. The steam drawing device according to claim 6, characterized in that: The condensed water pipeline is communicated with the steam generating device to realize the recycling of the condensed water.

8. The steam drawing equipment according to claim 4, characterized in that: The steam drawing equipment further includes a cooling water generating device, wherein the cooling water pipeline is a coil spirally laid inside the steam drawing chamber, and the water inlet and the water outlet of the cooling water pipeline are both connected to the cooling water generating device; The cooling water generating device is electrically connected to the temperature sensor, and the cooling water generating device is used to change the temperature of the cooling water in the cooling water pipeline.

9. The steam drawing device according to any one of claims 1 to 8, characterized in that: The temperature range of the cooling water in the cooling water pipeline is 90±5°C.

10. The steam drawing device according to any one of claims 1 to 8, characterized in that: The pressure range in the steam pipeline is 0.50±0.02MPa, the temperature range is 160±5°C, and the relative humidity range is 50±5%.

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