Flow guide device with flow guide cavity and hot rail device

Abstract

The utility model provides a flow guide device with a flow guide cavity and a hot rail device, the flow guide device with the flow guide cavity is arranged below a hot rail contained in a hot box along the vertical direction, the flow guide device with the flow guide cavity comprises a flow guide wall, the flow guide wall is arranged below the hot rail, and the flow guide wall forms the flow guide cavity which integrally inclines downwards relative to the horizontal plane. The flow guide pipe is communicated with the flow guide cavity; one end, close to the heat rail, of the flow guide cavity is opened, and the flow guide cavity and the flow guide pipe jointly form a discharge channel for discharging greasy dirt and / or lampblack out of the heat box. According to the flow guide device with the flow guide cavity and the hot rail device, the energy consumption of the hot box and the false twist texturing machine is reduced.

Description

Technical Field

[0001] This utility model relates to the field of textile machinery technology, and in particular to a flow guiding device with a flow guiding cavity and a hot rail device. Background Technology

[0002] During the processing of chemical fiber filaments, for example, when a hot box heats pre-drawn yarn (POY) and other chemical fibers, and then stretches the chemical fibers by subsequent conveying rollers, and when a false twisting device is used to perform false twisting deformation on the heated chemical fibers, a large amount of oil fumes are generated because the chemical fibers decompose at high temperatures or the additives added during the chemical fiber processing volatilize in the high-temperature environment formed by the hot box.

[0003] Existing technologies typically employ a negative pressure source connected to the exhaust pipe of the heating box, creating negative pressure inside the box to expel cooking fumes. However, because the negative pressure source cannot completely and promptly extract the volatile cooking fumes from the heating box, over time, the oil mist contained in the fumes adheres to the heating rails and gradually accumulates, forming grease. Since the heating box is usually installed at an angle, the grease on the heating rails drips from the gap between the heating rails and the door panel under gravity. In particular, to suppress grease formation and improve the extraction efficiency of cooking fumes, existing technologies usually require continuous extraction of cooking fumes from the heating box or increased suction force of the negative pressure source. However, this results in significant heat loss from the heating box, leading to excessive heat loss from the heating box and the false-twisting texturing machine containing it, resulting in energy waste.

[0004] It should be noted that the above description of the background technology is only for the purpose of providing a clear and complete explanation of the technical solutions of this application and facilitating understanding by those skilled in the art. It should not be assumed that these technical solutions are known to those skilled in the art simply because they have been described in the background technology section of this application. Utility Model Content

[0005] The purpose of this utility model is to disclose a flow guiding device and a hot rail device with a flow guiding cavity, which can solve many defects of the hot box in the prior art, especially to reduce the energy consumption of the hot box and the false twisting deformation machine.

[0006] To achieve the above objectives, in a first aspect, the present invention provides a flow guiding device with a flow guiding cavity, which is arranged vertically below the heat rail included in the heat box. The flow guiding device with the flow guiding cavity includes: a flow guiding wall, which is arranged below the heat rail and forms a flow guiding cavity that is inclined downward relative to the horizontal surface, and a flow guiding pipe communicating with the flow guiding cavity.

[0007] The end of the flow guide cavity near the hot rail is open, and the flow guide cavity and the flow guide pipe together form a discharge channel for oil and / or fumes to be discharged from the hot box.

[0008] As a further improvement of the utility model, the flow guide wall comprises:

[0009] The circumferential wall that forms the flow guide cavity is configured with a connecting part that extends over the vertical normal line of the bottom end of the hot rail along its length direction.

[0010] As a further improvement of the utility model, the flow guide wall comprises:

[0011] The circumferential wall that forms the flow guide cavity is configured with a connecting part that extends over the vertical normal line of the bottom end of the hot rail along its length direction.

[0012] The circumferential wall that forms the flow guide cavity is configured with a connecting part that extends over the vertical normal line of the bottom end of the hot rail along its length direction.

[0013] As a further improvement of the utility model, the flow guide wall comprises:

[0014] The bottom wall is downwardly inclined relative to the horizontal plane, the two oppositely arranged side walls extend along the length direction of the bottom wall, and the guide wall is downwardly inclined relative to the horizontal plane;

[0015] The guide wall extends to the bottom wall and transversely connects the side walls, the guide wall extends over the vertical normal line of the bottom end of the hot rail along its length direction, the guide wall forms an obtuse angle with the vertical normal line, and the bottom wall, the side walls and the guide wall jointly form the flow guide cavity.

[0016] As a further improvement of the utility model, the bottom wall extends towards the hot rail to abut against the bottom end of the hot rail or partially extends into the bottom end of the hot rail.

[0017] As a further improvement of the utility model, the bottom wall extends towards the hot rail to abut against the bottom end of the hot rail or partially extends into the bottom end of the hot rail, and the side wall extends towards the hot rail to abut against the bottom end of the hot rail or partially extends into the bottom end of the hot rail.

[0018] As a further improvement of the utility model, the flow guide pipe is downwardly inclined relative to the horizontal plane, the flow guide pipe is arranged on the bottom wall, and the inner wall of the pipe opening of one end of the flow guide pipe connected with the bottom wall smoothly transitions with the inner wall of one side of the guide wall facing the hot rail, so as to at least discharge the oil dirt and / or oil fume out of the hot box.

[0019] As a further improvement of the utility model, the flow guide cavity is communicated with the flow guide pipe at the end away from the opening, the flow guide pipe is downwardly inclined relative to the horizontal plane, the inner wall of the pipe opening of one end of the flow guide pipe connected with the flow guide wall smoothly transitions with the inner wall of one side of the circumferential wall facing the hot rail, so as to at least discharge the oil dirt and / or oil fume out of the hot box.

[0020] As a further improvement of the utility model, the peripheral wall extends towards the hot rail to form a flow guiding portion abutting against the bottom end of the hot rail or extending into the bottom end of the hot rail.

[0021] As a further improvement of the utility model, the flow guiding wall is configured with a positioning portion extending towards the hot rail, and the positioning portion is connected with the hot rail.

[0022] As a further improvement of the utility model, the flow guiding wall is configured with a plurality of positioning holes.

[0023] In a second aspect, the utility model also discloses a hot rail device, which comprises a hot rail, and the lower portion of the hot rail is provided with the flow guiding device according to any one of the first aspect.

[0024] The bottom end of the hot rail is at least partially configured with an inclined guiding portion extending downwardly relative to a horizontal plane, and the vertical normal line of the bottom end of the inclined guiding portion along the inclined direction intersects with the collection surface defined by the opening.

[0025] As a further improvement of the utility model, the hot rail is provided with a plurality of heating fiber grooves along the length direction of the hot rail, and groove walls are formed on both sides of the grooves.

[0026] The inclined guiding portion extends through the bottom end of the groove and the groove wall along the length direction of the hot rail, and the inclined guiding portion forms a flow guiding portion extending through the bottom end of the groove, and the vertical normal line of the bottom end of the flow guiding portion along the inclined direction intersects with the collection surface.

[0027] As a further improvement of the utility model, the inclined guiding portion is configured as at least one of a plane or a curved surface.

[0028] Compared with the prior art, the utility model has the beneficial effects that the oil stains drop downwardly under the action of gravity, the dropped oil stains enter the flow guiding cavity through the opening, and flow along the flow guiding wall and finally flow into the flow guiding pipe, so that the oil stain discharge channel is formed by the flow guiding cavity and the flow guiding pipe, and the oil stains are discharged from the hot box, thereby reducing the heat loss in the hot box and the false twist texturing machine comprising the hot box, reducing the energy waste, and achieving the purpose of energy saving and consumption reduction. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 It is a three-dimensional schematic view of the flow guiding device with the flow guiding cavity.

[0030] Figure 2 It is a whole sectional view schematic view of the hot box comprising the hot rail device.

[0031] Figure 3 It is Figure 2Partial enlarged view of the heat track and the flow guide device with flow guide cavity;

[0032] Figure 4 Partial enlarged view of the heat track and the flow guide device with flow guide cavity in another embodiment;

[0033] Figure 5 Partial enlarged view of the heat track and the flow guide device with flow guide cavity in another embodiment;

[0034] Figure 6 Partial enlarged view of the heat track and the flow guide device with flow guide cavity in another embodiment;

[0035] Figure 7 Partial enlarged view of the heat track and the flow guide device with flow guide cavity in another embodiment;

[0036] Figure 8 Partial enlarged view of the heat track and the flow guide device with flow guide cavity in another embodiment;

[0037] Figure 9 Partial enlarged view of the heat track and the flow guide device with flow guide cavity in another embodiment;

[0038] Figure 10 Schematic view of the flow guide tube in another embodiment;

[0039] Figure 11 Schematic view of the heat track with formed channel and channel wall;

[0040] Figure 12 Schematic view of the triangular connecting plate arranged between the guide wall and the side wall;

[0041] Figure 13 Schematic view of the peripheral wall with formed positioning holes;

[0042] Figure 14 Schematic view of the bottom end portion of the heat track with formed inclined guide portion;

[0043] Figure 15 Schematic view of the bottom end portion of the heat track with formed inclined guide portion;

[0044] Figure 16 Schematic view of the bottom end portion of the heat track with formed inclined guide portion, wherein the inclined guide portion is configured as a curved surface curved downward relative to the horizontal;

[0045] Figure 17 Schematic view of the bottom end portion of the heat track with formed inclined guide portion in another embodiment, wherein the inclined guide portion is configured as a curved surface curved downward relative to the horizontal;

[0046] Figure 18 Schematic view of the bottom end portion of the heat track with formed inclined guide portion in another embodiment, wherein the inclined guide portion is configured as a curved surface curved downward relative to the horizontal; Figure 14A schematic view of a bottom end portion of a hot track configured with a sloped guide portion that forms a flow guide extending over a bottom end of a channel. DETAILED DESCRIPTION

[0047] The utility model will be explained in detail below in combination with the embodiments shown in the drawings, but it should be noted that these embodiments are not a limitation on the utility model, and equivalent transformations or substitutions of function, method, or structure made by those skilled in the art based on these embodiments are within the protection scope of the utility model.

[0048] It should be noted that the drawings (for example, Figures 2 to 9 and Figures 12 to 17 ) contained in the specification of the present application are cross-sectional views or partial cross-sectional views of the hot box 100 cut along the Z-axis in the hot box 100. Figure 2

[0049] During the heating process of the hot box on the chemical fiber (for example, pre-drafting yarn), the chemical fiber is decomposed at high temperature or the additives added in the chemical fiber processing process volatilize in the high-temperature environment formed by the hot box, thereby forming a large amount of oil fume. In the prior art, a negative pressure source is usually connected to the smoke exhaust pipes at the upper and lower ends of the hot box to form a negative pressure in the hot box (i.e., the space region formed between the hot track 10 and the door plate 801) to exhaust the oil fume from the hot box. However, since the negative pressure source is difficult to completely and timely suck out the volatilized oil fume in the hot box, with the increase of the use time, the oil mist contained in the oil fume adheres to the hot track and gradually accumulates to form oil stains. Since the hot box is usually installed obliquely in the false twist texturing machine, the hot track is inclined with the hot box, and the oil stains on the hot track naturally flow along the inclined direction of the hot track under the action of gravity, converge to the bottom end of the hot track along the length direction of the hot track, and cause the oil stains to drip from the bottom end of the hot track through the gap between the hot track and the door plate.

[0050] In particular, in order to suppress the generation of oil stains and improve the exhaust effect of the oil fume in the prior art, it is usually necessary to continuously perform the exhaust operation on the oil fume generated in the hot box or increase the suction force of the negative pressure source, but this will cause a large amount of heat loss in the hot box, thereby causing excessive heat loss of the hot box and the false twist texturing machine containing the hot box, resulting in energy waste.

[0051] The hot box 100 in the present application can be understood as a texturing hot box configured in a false twist texturing machine (not shown), or, for example, a diphenyl heating method is used to heat treat the chemical fiber N and applied to other types of fiber processing equipment (i.e., a higher concept of the false twist texturing machine), which is not specifically limited and excluded in the present application.

[0052] In some examples, reference Figure 2 ​As shown, the box body 80 is the outer shell of the hot box 100, which is used to accommodate the hot rail 10 and the flow guiding device 20 with a flow guiding cavity (hereinafter referred to as "the flow guiding device 20"). The chemical fiber N forms a moving path M when being conveyed into the hot box 100, and the chemical fiber N is heated by the high-temperature environment inside the hot box 100. Since the hot box 100 is inclined and installed on the false twist texturing machine, the hot rail 10 is inclined along with the hot box 100. Therefore, the hot rail 10 has a certain inclination angle relative to the horizontal plane, such as 50°, 55°, 60°, etc., so that the oil stain can flow naturally along the inclined direction of the hot rail 10 under the action of gravity to converge towards the bottom end 101 of the hot rail 10 along its length direction.

[0053] As shown in Figure 2 connection with Figure 3 the figure, the flow guiding device 20 disclosed in the present application is arranged below the hot rail 10 included in the hot box 100 along the vertical direction (i.e., the direction shown by the Z axis in Figure 2 the figure). An inclined guiding portion 11 extending towards the flow guiding device 20 is constructed at the bottom end 101 of the hot rail 10 along its length direction. The oil stain flowing naturally along the inclined direction of the hot rail 10 converges to the inclined guiding portion 11 and finally converges to the bottom end 111 of the inclined guiding portion 11 along its inclined direction. Under the action of gravity, the oil stain drips downward from the bottom end 111 of the inclined guiding portion 11 along the Figure 3 direction shown by the arrow B2 in the figure. Since the flow guiding wall 21 is arranged below the hot rail 10 and an opening 2101 is formed at one end of the flow guiding cavity 210 close to the hot rail 10, the oil stain at the bottom end 101 of the hot rail 10 will pass through the opening 2101 and enter the flow guiding cavity 210 during the process of dripping downward. The oil stain will flow along the flow guiding wall 21 and finally flow into the flow guiding pipe 22, so as to centrally discharge the oil stain out of the hot box 100 through the flow guiding pipe 22, thereby preventing the oil stain from dripping from the bottom end of the hot rail 10 through the gap between the hot rail 10 and the door panel 801. The flow guiding device 20 disclosed in the present application is arranged below the hot rail 10 along the vertical direction. By collecting the oil stain dripping downward from the bottom end 101 of the hot rail 10 and discharging the oil stain out of the hot box 100, it effectively avoids the high-temperature oil droplets from dripping and polluting the ground, and can avoid the high-temperature oil droplets from dripping and causing personal injury to the operators in the operation passage of the false twist texturing machine.

[0054] In some examples, as shown in Figure 3As shown, the heat box 100 is provided below with an exhaust pipe 70 connected to the guide pipe 22 of the guide device 20, and the exhaust pipe 70 is in communication with the exhaust channel 23. The exhaust pipe 70 can be externally connected to a negative pressure source, and the negative pressure source forms a suction force through the exhaust pipe 70 and the exhaust channel 23 to the inside of the heat box 100, so as to discharge the oil fume and / or oil stain collected by the guide device 20 from the heat box 100 through the guide device 20, thereby improving the working efficiency of discharging oil fume and / or oil stain and reducing the suction power consumption. The guide device 20 disclosed in the present application collects the oil stain gathered at the bottom end 101 of the heat rail 10 and discharges the oil stain from the heat box 100, so as to reduce the need for high-intensity oil fume suction and discharge operation of the heat box 100, reduce the exhaust volume requirement of the negative pressure source by the heat box 100, and even eliminate the need for the exhaust pipe 70 connected to the guide device 20 below the heat box 100 to be connected to the negative pressure source, thereby reducing the heat loss in the heat box 100 and the false twist texturing machine (not shown) containing the heat box 100, reducing energy waste, and achieving the purpose of energy saving and consumption reduction. The energy consumption to be reduced in the present application can be considered as the energy consumption of the heat box 100 containing the heat rail 10, or the energy consumption of the false twist texturing machine containing the heat box as a whole, or the energy consumption of the false twist texturing machine and the negative pressure source together, or the energy consumption of the negative pressure source.

[0055] Referring to Figures 1 to 6 As shown, the guide device 20 includes a guide wall 21 arranged below the heat rail 10, the guide wall 21 forms a guide cavity 210 inclined downward as a whole relative to the horizontal plane, and a guide pipe 22 in communication with the guide cavity 210; one end of the guide cavity 210 close to the heat rail 10 forms an opening 2101, and the guide cavity 210 and the guide pipe 22 together form an exhaust channel 23 for discharging oil fume and / or oil stain from the heat box 100.

[0056] During the heating process of the chemical fiber N by the heat box 100, the oil stain on the heat rail 10 flows naturally along the inclined direction of the heat rail 10 under the action of gravity, converges to the bottom end 101 (i.e., the inclined guide part 11) of the heat rail 10 along the length direction of the heat rail 10, and flows along the inclined guide part 11 in the direction indicated by arrow B1, and falls downward in the direction indicated by arrow B2 under the action of gravity from the bottom end 111 of the inclined guide part 11. Figure 3 Figure 3 The falling oil stain will pass through the opening 2101 into the guide cavity 210, flow along the guide wall 21, and finally flow into the guide pipe 22. The guide device 20 forms an exhaust channel 23 for oil stain through the guide cavity 210 and the guide pipe 22 to discharge the oil stain from the inside of the heat box 100.

[0057] In some examples, referring to Figures 1 to 6 ​As shown, the discharge channel 23 is composed of a guide cavity 210 and a guide pipe 22, providing a continuous and unobstructed flow path for the oil sludge. The guide cavity 210, which is inclined downward relative to the horizontal plane, provides the oil sludge with the force to flow naturally to the lowest point. Under the action of gravity, the oil sludge flows along the inclined surface of the guide wall 21 to the guide pipe 22, and is discharged from the heat box 100 through the guide pipe 22, avoiding the accumulation or leakage of oil sludge in the heat box 100, so as to achieve smooth discharge of oil sludge. The exhaust channel 23 can also be used to exhaust fumes from the heat box 100. The heat box 100 is provided with an exhaust pipe 70 that communicates with the exhaust channel 23. When the exhaust pipe 70 is connected to a negative pressure source, the negative pressure source forms a suction force on the inside of the heat box 100 through the exhaust pipe 70 and the exhaust channel 23, so that the fumes and / or oil collected by the guide device 20 in the heat box 100 can be discharged from the heat box 100 through the exhaust channel 23. This can improve the working efficiency of discharging oil and / or fumes and reduce the suction power consumption.

[0058] In some examples, the parameter Figure 3 As shown, the guide cavity 210 is inclined downwards relative to the horizontal plane H. The inclination direction E of the guide cavity 210 forms an acute angle α with the horizontal plane H. By adjusting the angle α, the flow direction and velocity of the oil are adjusted. While avoiding interference of the guide wall 21 with the movement path M of the chemical fiber N, the larger the angle α, the stronger the component of gravity acting on the oil along the guide wall 21, thus increasing the flow velocity of the oil on the guide wall 21 and improving discharge efficiency, while preventing the oil from stagnating and accumulating on the guide wall 21. Preferably, the acute angle α is greater than or equal to 30° and less than or equal to 60°.

[0059] In some examples, the parameter Figure 2 and Figure 3 As shown, the guide wall 21 includes a peripheral wall 214 that encloses and forms the guide cavity 210. The peripheral wall 214 is configured with a receiving portion 2141 that extends through the vertical normal V of the bottom end 101 of the heat rail 10 along its length. It should be noted that the vertical normal V of the bottom end 101 of the heat rail 10 corresponds to the vertical normal V of the bottom end 111 of the inclined guide portion 11 along its inclined direction. Under the action of gravity, oil sludge flows from the bottom end 101 of the heat rail 10 along... Figure 3 When the oil drips downwards in the direction indicated by the middle arrow B2, it passes through the vertical normal V of the bottom end 101 of the hot rail 10 via the receiving part 2141, allowing the oil to enter the guide cavity 210 through the opening 2101 and drip onto the receiving part 2141. The receiving part 2141 then guides the oil to flow along the peripheral wall 214, and the oil eventually flows into the guide pipe 22, through which the oil is concentrated and discharged from the hot box 100.

[0060] In some examples, the parameter Figure 4As shown, the flow guide wall 21 includes: a base 215, and a peripheral wall 214 formed on the base 215 and together with the base 215 to form the flow guide cavity 210; the peripheral wall 214 is configured with a receiving portion 2141, which extends through the vertical normal V of the bottom end 101 of the heat rail 10 along its length direction. Oil sludge flows from the bottom end 101 of the heat rail 10 under the action of gravity along... Figure 4 When the oil drips downwards in the direction indicated by the middle arrow B2, because the receiving part 2141 extends past the vertical normal V of the bottom end 101 of the hot rail 10, the oil will enter the guide cavity 210 through the opening 2101 and drip onto the receiving part 2141. The receiving part 2141 then guides the oil to flow along the peripheral wall 214, and the oil finally flows into the guide pipe 22, through which the oil is collected and discharged from the hot box 100. The base 215 is formed at the bottom of the guide device 20 to support the overall structure of the guide wall 21.

[0061] In some examples, the parameter Figure 3 and Figure 4 As shown, the end of the guide cavity 210 away from the opening 2101 is connected to the guide pipe 22. The guide pipe 22 is inclined downward relative to the horizontal plane. The inner wall 221 of the pipe opening at the end of the guide pipe 22 connected to the guide wall 21 smoothly transitions to the inner wall 2142 of the peripheral wall 214 facing the hot rail 10, so as to at least discharge oil and / or fumes from the hot box 100. Under the action of gravity, the oil flows along... Figure 3 (or Figure 4 Oil dripping downwards into the guide cavity 210 in the direction indicated by arrow B2 is guided by the receiving part 2141 to flow into the guide pipe 22, where it is then discharged from the heat box 100. The smooth transition between the inner wall 221 of the pipe opening and the inner wall 2142 of the peripheral wall 214 allows the oil on the receiving part 2141 to flow more smoothly into the guide pipe 22, thus preventing oil from stagnating or accumulating in the guide cavity 210 due to flow resistance and improving oil discharge efficiency.

[0062] In some examples, the parameter Figure 5 As shown, the peripheral wall 214 extends toward the heat rail 10 to form a drainage portion 2143 that abuts against the bottom end 101 of the heat rail 10 or partially extends into the bottom end 101 of the heat rail 10. Oil stains on the bottom end 101 of the heat rail 10... Figure 5 The oil flows towards the peripheral wall 214 in the direction indicated by the middle arrow B1. Because the drainage section 2143 abuts against the bottom end 101 of the heat rail 10 or partially extends into the bottom end 101 of the heat rail 10, the oil can flow from the bottom end 101 of the heat rail 10 along... Figure 5 The oil flows into the guide cavity 210 through the drainage section 2143 in the direction indicated by the middle arrow B21, and then flows along the peripheral wall 214 to the base 215. Finally, the oil flows to the guide pipe 22, and the oil is discharged from the heat box 100 through the guide pipe 22.

[0063] In some examples, the parameter Figure 6 As shown, the flow guide wall 21 includes: a bottom wall 211 inclined downward relative to the horizontal plane, two opposing side walls 212 extending along the length of the bottom wall 211, and a guide wall 213 inclined downward relative to the horizontal plane; the guide wall 213 extends to the bottom wall 211 and laterally connects to the side walls 212, the guide wall 213 extends through the vertical normal V of the bottom end 101 of the hot rail 10 along its length, and the guide wall 213 forms an obtuse angle β with the vertical normal V. The bottom wall 211, the side walls 212, and the guide wall 213 together enclose a flow guide cavity 210. Oil sludge flows from the bottom end 101 of the hot rail 10 under the action of gravity along... Figure 6 As the oil drips downwards in the direction indicated by the middle arrow B2, because the guide wall 213 extends beyond the vertical normal V of the bottom end 101 of the hot rail 10, the oil will pass through the opening 2101 into the guide cavity 210 and drip onto the guide wall 213. The guide wall 213 then forms an obtuse angle β with the vertical normal V, allowing the guide wall 213 to guide the oil along... Figure 6 The oil flows in the direction indicated by the middle arrow B3 through the guide pipe 22, and the oil is concentrated and discharged from the heat box 100 through the guide pipe 22. During the process of guiding the oil to the guide pipe 22 through the guide wall 213, the side wall 212 can block the oil flowing on the guide wall 213, preventing the oil from escaping from the guide wall 213 into the guide cavity 210, and preventing the oil from leaking into the inside or outside of the box 80.

[0064] In some examples, the parameter Figure 7 As shown, the bottom wall 211 extends toward the heat rail 10 to abut against or partially extend into the bottom end 101 of the heat rail 10. This allows oil to flow from the bottom end 101 of the heat rail 10 along... Figure 7 As indicated by the middle arrow B21, the oil flows into the guide cavity 210 along the bottom wall 211, and is guided by the bottom wall 211 into the guide pipe 22 and along... Figure 7 The oil flows in the direction indicated by the middle arrow B3, so as to concentrate and discharge the oil sludge from the hot box 100 through the guide pipe 22.

[0065] In some examples, the parameter Figure 8 As shown, the bottom wall 211 extends toward the heat rail 10 to abut against or partially extend into the bottom end 101 of the heat rail 10, and the side wall 212 extends toward the heat rail 10 to abut against or partially extend into the bottom end 101 of the heat rail 10. Oil can flow from the bottom end 101 of the heat rail 10 to the bottom wall 211 and side wall 212, guiding the oil to the flow guide cavity 210. Furthermore, the guide wall 213 intercepts the oil on the side wall 212 and guides it to the flow guide pipe 22, preventing oil from escaping from the side wall 212 and preventing oil leakage into the interior or exterior of the housing 80.

[0066] In some examples, the parameter Figure 7 As shown, the bottom wall 211 slopes downward relative to the horizontal plane H, and the extension direction E of the bottom wall 211 forms an acute angle α with the horizontal plane H. By adjusting the angle α, the flow direction and velocity of the oil are adjusted. Without interfering with the movement path M of the chemical fiber N by the guide wall 213, the larger the angle α, the stronger the component of gravity that causes the oil to flow along the bottom wall 211, thus increasing the flow velocity of the oil on the bottom wall 211 and improving discharge efficiency, while preventing the oil from stagnating and accumulating on the bottom wall 211. Preferably, the acute angle α is greater than or equal to 30° and less than or equal to 60°.

[0067] In some examples, the parameter Figure 5 , Figure 7 and Figure 8 As shown, the drainage section 2143 (or bottom wall 211 and side wall 212) abuts against the bottom end 101 of the hot rail 10. The drainage section 2143 (or bottom wall 211 and side wall 212) directly contacts and adheres tightly to the bottom end 101 of the hot rail 10, and is tightly connected with the bottom end 101 of the hot rail 10, so that the oil stains at the bottom end 101 of the hot rail 10 can flow smoothly along the inclined guide section 11 to the drainage section 2143 (or bottom wall 211 and side wall 212), and flow along the peripheral wall 214 (or bottom wall 211 and side wall 212) to the guide pipe 22, so that the oil stains are discharged from the hot box 100 through the discharge channel 23. In some examples, the drain portion 2143 (or bottom wall 211 and side wall 212) extends into the bottom end 101 of the hot rail 10 (not shown in this case), making the joint between the drain portion 2143 (or bottom wall 211 and side wall 212) and the bottom end 101 of the hot rail 10 tighter, thereby reducing any possible gaps, preventing oil leakage during flow, and reducing the risk of contamination of the external working area of ​​the hot box 100.

[0068] In some examples, the parameter Figures 6 to 9 As shown, the guide pipe 22 is inclined downward relative to the horizontal plane and is disposed on the bottom wall 211. The inner wall 221 of the end of the guide pipe 22 connected to the bottom wall 211 smoothly transitions with the inner wall 2131 of the guide wall 213 facing the hot rail 10, so as to at least discharge oil and / or fumes from the hot box 100. The smooth transition between the inner wall 221 of the pipe opening and the inner wall 2131 of the guide wall 213 facing the hot rail 10 allows oil dripping onto the guide wall 213 to flow more smoothly into the guide pipe 22 through the inner wall 221 of the pipe opening along the inner wall 2131 of the guide wall 213. The oil is then concentrated and discharged from the hot box 100 through the guide pipe 22, avoiding oil stagnation or accumulation in the guide cavity 210 due to oil flow resistance, thereby improving the oil discharge efficiency.

[0069] In some examples, the flow guide wall 21 is configured with a positioning portion 24 extending towards the hot rail 10, and the positioning portion 24 is connected with the hot rail 10. For example, as shown in FIG. 2, the flow guide wall 21 is configured with a positioning portion 24 extending towards the hot rail 10, and the flow guide wall 21 is connected with the hot rail 10 through the positioning portion 24 (the state is not shown), avoiding the position of the flow guide device 20 in the hot box 100 from being deviated, so that the flow guide device 20 can be stably kept at the predetermined position, the oil dirt can be guided, and the accuracy of the discharge can be ensured. Figure 1 As shown in FIG. 2, the side wall 212 is configured with a positioning portion 24 extending towards the hot rail 10, and the side wall 212 is connected with the hot rail 10 through the positioning portion 24 (the state is not shown), avoiding the position of the flow guide device 20 in the hot box 100 from being deviated, so that the flow guide device 20 can be stably kept at the predetermined position, the oil dirt can be guided, and the accuracy of the discharge can be ensured. The positioning portion 214 can be connected with the hot rail 10 by welding, plugging or the like. For example, the positioning portion 24 can be plugged into the plugging groove (not shown) configured by the hot rail 10, so as to keep the flow guide device 20 at the predetermined position.

[0070] In some examples, as shown in FIG. 2, the flow guide wall 21 is configured with a positioning hole 2112. Figure 1 As shown in FIG. 2, the side wall 212 is configured with a positioning hole 2112. In some examples, as shown in FIG. 2, the side wall 212 is configured with a positioning hole 2112. Figure 13 As shown in FIG. 2, the side wall 212 is configured with a positioning hole 2112. In some examples, as shown in FIG. 2, the side wall 212 is configured with a positioning hole 2112. Figure 1 As shown in FIG. 2, the side wall 212 is configured with a positioning hole 2112. In some examples, as shown in FIG. 2, the side wall 212 is configured with a positioning hole 2112. Figure 7 As shown in FIG. 2, the side wall 212 is configured with a positioning hole 2112. In some examples, as shown in FIG. 2, the side wall 212 is configured with a positioning hole 2112. Figure 8 As shown in FIG. 2, the side wall 212 is configured with a positioning hole 2112. In some examples, as shown in FIG. 2, the side wall 212 is configured with a positioning hole 2112.

[0071] In some examples, as shown in FIG. 2, the flow guide wall 21 is configured with a positioning hole 2112. Figure 10 As shown in FIG. 2, the side wall 212 is configured with a positioning hole 2112. In some examples, as shown in FIG. 2, the side wall 212 is configured with a positioning hole 2112. Figure 7 As shown in FIG. 2, the side wall 212 is configured with a positioning hole 2112. In some examples, as shown in FIG. 2, the side wall 212 is configured with a positioning hole 2112.

[0072] In some examples, as shown in FIG. 2, the flow guide wall 21 is configured with a positioning hole 2112. Figure 12 As shown in FIG. 2, the side wall 212 is configured with a positioning hole 2112. In some examples, as shown in FIG. 2, the side wall 212 is configured with a positioning hole 2112. Figure 12 As shown in FIG. 2, the side wall 212 is configured with a positioning hole 2112. In some examples, as shown in FIG. 2, the side wall 212 is configured with a positioning hole 2112. Figure 12Intercept and guide the oil stains dripping onto the guiding wall 213 in the direction shown by arrow B22, to prevent the oil stains from escaping from the guiding wall 213 into the diversion cavity 210.

[0073] Based on the technical solutions of any of the diversion devices 20 disclosed in the foregoing embodiments and their reasonable combinations, this embodiment also discloses a hot rail device 1, which is configured inside the hot box 100.

[0074] Refer Figure 2 to Figure 3 As shown, the hot rail device 1 includes: a hot rail 10, and the diversion device 20 disclosed in the foregoing embodiment is disposed below the hot rail 10; at least part of the bottom end 101 of the hot rail 10 is configured with an inclined guiding portion 11 extending downwardly relative to the horizontal plane, and the vertical normal V of the bottom end 111 of the inclined guiding portion 11 along its inclined direction intersects with the collection surface P defined by the opening 2101. The inclined guiding portion 11 is formed at the bottom end of the hot rail 10 along its length direction and close to the diversion device 20.

[0075] In some examples, refer Figure 14 to the figure, a part of the bottom end 101 of the hot rail 10 is configured with an inclined guiding portion 11a extending downwardly relative to the horizontal plane. In some examples, refer Figure 15 to the figure, the entire bottom end 101 of the hot rail 10 is configured with an inclined guiding portion 11a' extending downwardly relative to the horizontal plane.

[0076] During the process of the hot box 100 performing heat treatment on chemical fibers, the oil stains on the hot rail 10 naturally flow along the inclined direction of the hot rail 10 under the action of gravity, and converge towards the bottom end 101 of the hot rail 10. The inclined guiding portion 11 guides the oil stains to flow along Figure 3 the direction shown by arrow B1 in the figure, so that the oil stains converge towards the bottom end 111 of the inclined guiding portion 11. The oil stains drip downward along the direction shown by arrow B2 in the figure from the bottom end 111 of the inclined guiding portion 11 under the action of gravity. Since the collection surface P intersects with the vertical normal V of the bottom end 111 of the inclined guiding portion 11, the oil droplets can pass through the collection surface P and enter the diversion cavity 210 through the opening 2101, and flow into the diversion pipe 22 along the diversion wall 21, and the oil stains are discharged from the hot box 100 through the diversion pipe 22.

[0077] In some examples, refer Figure 4 ​​As shown, the heat box 100 is provided below with an exhaust pipe 70 connected with the guide pipe 22 of the guide device 20, and the exhaust pipe 70 is in communication with the exhaust channel 23. The exhaust pipe 70 can be externally connected with a negative pressure source, and the negative pressure source forms a suction force in the heat box 100 through the exhaust pipe 70 and the exhaust channel 23, so as to discharge the oil fume in the heat box 100 and / or the oil stain collected by the guide device 20 from the heat box 100 through the guide device 20. Therefore, the working efficiency of discharging the oil fume and / or the oil stain can be improved, and the suction power consumption can be reduced.

[0078] The heat rail device 1 disclosed in the present application collects the oil stain gathered at the bottom end 101 of the heat rail 10 through the guide device 20 and discharges the oil stain from the heat box 100. Therefore, the high-intensity oil fume suction and discharge operation on the heat box 100 is not required, the exhaust volume of the negative pressure source required by the heat box 100 is reduced, and even the exhaust pipe 70 of the guide device 20 connected below the heat box 100 does not need to be connected with the negative pressure source. Therefore, the heat loss in the heat box 100 and the false twist texturing machine (not shown) containing the heat box 100 is reduced, the energy waste is reduced, and the energy saving and consumption reduction purpose is achieved.

[0079] In some examples, the collection part 2132 of the guide wall 213 extends over the vertical normal line V of the bottom end 111 of the inclined guide part 11, and the collection part 2132 and the bottom wall 211 jointly define a collection surface P as shown in Figure 6 , so as to realize the intersection of the vertical normal line V of the bottom end 111 of the inclined guide part 11 and the collection surface P. When the oil stain drops downward along the direction shown by the arrow B2 in Figure 6 , due to the fact that the collection part 2132 of the guide wall 213 extends over the vertical normal line V of the bottom end 111 of the inclined guide part 11, the oil stain will pass through the opening 2101 into the guide cavity 210 and drop to the guide wall 213. Then, the guide wall 213 forms an obtuse angle β with the vertical normal line V, so that the guide wall 213 can guide the oil stain to flow to the guide pipe 22 along the direction shown by the arrow B3 in Figure 6 , and the oil stain is concentrated and discharged from the heat box 100 through the guide pipe 22.

[0080] In some examples, as shown in Figure 4 , the opening 2101 and the connecting part 2141 jointly define a collection surface P as shown in Figure 4 , so as to realize the intersection of the vertical normal line V of the bottom end 111 of the inclined guide part 11 and the collection surface P. In some examples, as shown in Figure 5 , the opening 2101, the connecting part 2141 and the drainage part 2143 jointly define a collection surface P as shown in Figure 5 , so as to realize the intersection of the vertical normal line V of the bottom end 111 of the inclined guide part 11 and the collection surface P. When the oil stain drops downward along the direction shown by the arrow B2 in Figure 4 (orFigure 5 When the oil dirt drops downward in the direction indicated by the middle arrow B22, the vertical normal line V intersects with the collection surface P, so that the oil dirt will enter the flow guide cavity 210 through the opening 2101, drop to the lead-in part 2141, and then be guided by the lead-in part 2141 to flow along the peripheral wall 214 to the flow guide pipe 22, and then be discharged out of the heat box 100 through the flow guide pipe 22.

[0081] In some examples, the flow guide device 20 is configured to collect and discharge the oil dirt dropped from the heat rail 10. Figure 14 The flow guide device 20 is configured to collect and discharge the oil dirt dropped from the heat rail 10. Figure 15 As shown, the inclined guide part 11 extends downwardly relative to the horizontal plane H, and forms an acute angle a1 with the horizontal plane H. The angle a1 is adjusted to adjust the flow direction and flow rate of the oil dirt. The greater the angle a1, the stronger the gravity force on the oil dirt along the inclined guide part 11, so that the flow rate of the oil dirt on the inclined guide part 11 is faster, thereby improving the discharge efficiency and avoiding stagnation and accumulation of the oil dirt on the inclined guide part 11. Preferably, the angle a1 is greater than or equal to 15° and less than or equal to 75°.

[0082] In some examples, the flow guide device 20 is configured to collect and discharge the oil dirt dropped from the heat rail 10. Figures 14 to 18 As shown, the heat rail 10 is provided with a plurality of grooves 12 for heating the fibers N along the length direction of the heat rail 10, and a plurality of groove walls 13 formed on both sides of the grooves 12; the inclined guide part 11 extends to the bottom end of the heat rail 10 along the length direction of the heat rail 10, and forms a flow guide part 112 extending to the bottom end of the groove 12, and the vertical normal line V of the bottom end 111 of the flow guide part 112 (i.e., the bottom end 111 of the inclined guide part 11) intersects with the collection surface P. The bottom end 121 of the groove 12 along the length direction of the heat rail 10 extends to the inclined guide part 11, and the bottom end 131 of the groove wall 13 along the length direction of the heat rail 10 extends to the inclined guide part 11. During the heating process of the fibers N in the heat box 100, the oil mist contained in the oil fume adheres to the surfaces of the groove walls 13 and the grooves 12 and gradually forms oil dirt. The oil dirt on the surfaces of the groove walls 13 and the grooves 12 naturally flows along the inclined direction of the heat rail 10 under the action of gravity, and converges to the inclined guide part 11. The oil dirt flows along the flow guide part 112 and converges to the bottom end 111. The oil dirt drops downward from the bottom end 111 of the flow guide part 112 under the action of gravity, so as to be collected and discharged out of the heat box 100 by the flow guide device 20.

[0083] In some examples, the flow guide device 20 is configured to collect and discharge the oil dirt dropped from the heat rail 10. Figure 14 As shown, the inclined guide part 11 forms a flow guide part 112a extending to the bottom end 121 of the groove 12, and the flow guide wall 21 (i.e., the bottom wall 211 and / or the side wall 212, or the lead-in part 2143) abuts against or partially extends into the flow guide part 112a at any position, so that the flow guide wall 21 can effectively receive the oil dirt flowing along the inclined guide part 11.

[0084] In some examples, the parameter Figure 15 As shown, the inclined guide portion 11 forms a guide portion 112b extending through the bottom end 121 of the channel 12, and the guide wall 21 (i.e., the bottom wall 211 and / or the side wall 212, or the drainage portion 2143) abuts against or partially extends into any position of the guide portion 112b. This allows the guide wall 21 to effectively receive oil flowing along the inclined guide portion 11.

[0085] In some examples, the parameter Figure 14 , Figures 16 to 18 As shown, to avoid the flow guide wall 21 interfering with the movement path M of the synthetic fiber N, preferably, the flow guide wall 21 (i.e., the bottom wall 211, or the drainage portion 2143) abuts against the bottom end 111 of the flow guide portion 112a along its inclined direction (i.e., the bottom end of the inclined guide portion 11) or partially extends into the bottom end 111 of the flow guide portion 112a. Preferably, the collection surface P defined by the opening 2101 of the flow guide cavity 210 intersects the vertical normal V of the bottom end 111 of the flow guide portion 112a.

[0086] In some examples, the parameter Figure 11 As shown, the guide wall 21 is transverse (i.e. Figure 11 The width w2 formed in the direction indicated by the X-axis is greater than the lateral width w1 between the channel walls 13 on both sides of the channel 12. In some examples, the lateral width w2 of the guide wall 21 includes the width of the guide cavity 210 formed laterally, so that the guide cavity 210 can fully receive the oil sludge at the bottom end 101 of the hot rail 10, preventing the oil sludge from leaking into the inside or outside of the housing 80. In some examples, the lateral width w2 of the guide wall 21 includes the lateral width of the bottom wall 211 (or the drainage portion 2143) that abuts against the bottom end 101 of the hot rail 10 or partially extends into the bottom end 101 of the hot rail 10, so that the bottom wall 211 (or the drainage portion 2143) can fully receive the oil sludge flowing from the bottom end 101 of the hot rail 10 to the guide wall 21, preventing the oil sludge from leaking into the inside or outside of the housing 80. In some examples, the lateral width w2 of the flow guide wall 21 includes the overall width of the bottom wall 211 and side wall 212 that abut against the bottom end 101 of the hot rail 10 or partially extend into the bottom end 101 of the hot rail 10, so that the bottom wall 211 and side wall 212 can fully receive the oil flowing from the bottom end 101 of the hot rail 10 into the flow guide wall 21, and prevent the oil from leaking into the inside or outside of the housing 80.

[0087] In some examples, the tilt guide 11 is configured as at least one of a plane or a curved surface. (See reference...) Figure 14 or Figure 15 As shown, the cross-sectional shape formed by cutting the inclined guide section 11 along the Z-axis is a plane 11a, 11a' that is inclined downward relative to the horizontal plane, or, refer to Figure 16 or Figure 17As shown, the cross-sectional shape of the inclined guide portion 11 along the Z-axis is a curved surface 11b that curves downward relative to the horizontal plane, and even a combination of a curved surface and a plane (this state is not shown), the inclined guide portion 11 can also be other shapes capable of guiding the oil stains to drip downward to the flow guide cavity 210 or guiding the oil stains to flow to the flow guide wall 21, and the present application does not limit this.

[0088] The above series of detailed descriptions are only specific descriptions of the feasible embodiments of the present application, and are not used to limit the protection scope of the present application, and equivalent embodiments or changes made without departing from the spirit of the present application should be included in the protection scope of the present application.

[0089] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0090] In addition, it should be understood that although the present application is described in the form of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, and those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be properly combined to form other embodiments that those skilled in the art can understand.

Claims

1. A flow guide device having a flow guide cavity, which is arranged in a vertical direction below a hot rail contained in a hot box, characterized in that, The guide flow device with the guide flow cavity comprises: a guide flow wall configured below the heat track, the guide flow wall forming the guide flow cavity which is inclined downward relative to the horizontal plane, and a guide flow pipe communicating with the guide flow cavity; an open end of the guide flow cavity is formed close to the heat track, and the guide flow cavity and the guide flow pipe jointly form an exhaust passage for discharging oil dirt and / or oil fume out of the heat box.

2. The flow diverting device with flow diverting cavities of claim 1, wherein, The guide flow wall comprises: a circumferential wall which forms the guide flow cavity, the circumferential wall being configured with a connecting portion which extends over the vertical normal of the bottom end of the heat track along the length direction thereof.

3. The flow diverting device with flow diverting cavities of claim 1, wherein, The guide flow wall comprises: a base, a circumferential wall formed on the base and jointly enclosing the guide flow cavity with the base; the circumferential wall is configured with a connecting portion which extends over the vertical normal of the bottom end of the heat track along the length direction thereof.

4. The flow diverting device with flow diverting cavities of claim 1, wherein, The guide flow wall comprises: a bottom wall which is arranged to be inclined downward relative to the horizontal plane, two oppositely arranged side walls which extend along the length direction of the bottom wall, and a guide wall which is arranged to be inclined downward relative to the horizontal plane; the guide wall extends to the bottom wall and transversely connects the side walls, the guide wall extends over the vertical normal of the bottom end of the heat track along the length direction thereof, the guide wall forms an obtuse angle with the vertical normal, and the bottom wall, the side walls and the guide wall jointly enclose the guide flow cavity.

5. The flow diverting device with flow diverting cavities of claim 4, wherein, The bottom wall extends towards the heat track to abut against the bottom end of the heat track or partially extend into the bottom end of the heat track.

6. The flow diverting device with flow diverting cavities of claim 4, wherein, The bottom wall extends towards the heat track to abut against the bottom end of the heat track or partially extend into the bottom end of the heat track, and the side wall extends towards the heat track to abut against the bottom end of the heat track or partially extend into the bottom end of the heat track.

7. The flow diverting device with flow diverting cavities of claim 4, wherein, The guide flow pipe is arranged to be inclined downward relative to the horizontal plane, the guide flow pipe is arranged on the bottom wall, and the inner wall of the pipe opening at the end of the guide flow pipe connected with the bottom wall smoothly transitions with the inner wall of the side of the guide wall facing the heat track, so as to at least discharge oil dirt and / or oil fume out of the heat box.

8. The flow directing device with flow directing cavities according to claim 2 or 3, characterized in that The guide flow cavity is communicated with the guide flow pipe at the end away from the open end, the guide flow pipe is arranged to be inclined downward relative to the horizontal plane, the inner wall of the pipe opening at the end of the guide flow pipe connected with the guide flow wall smoothly transitions with the inner wall of the side of the circumferential wall facing the heat track, so as to at least discharge oil dirt and / or oil fume out of the heat box.

9. The flow directing device with flow directing cavities according to claim 2 or 3, characterized in that The circumferential wall extends towards the heat track to form a flow guiding portion which abuts against the bottom end of the heat track or partially extends into the bottom end of the heat track.

10. The flow diverting device with flow diverting cavities of any one of claims 1 to 4, wherein, The guide flow wall is configured with a positioning portion which extends towards the heat track, and the positioning portion is connected with the heat track.

11. The flow diverting device with flow diverting cavities of any one of claims 1 to 4, wherein, The guide flow wall is configured with a plurality of positioning holes.

12. A hot rail device characterized by It comprises: a heat track, and a guide flow device with a guide flow cavity as claimed in any one of claims 1 to 11 is arranged below the heat track; the bottom end of the heat track is at least partially configured with an inclined guiding portion which extends to be inclined downward relative to the horizontal plane, and the vertical normal of the bottom end along the inclined direction of the inclined guiding portion intersects with the collection surface defined by the open end.

13. The hot rail device of claim 12, wherein, the heat track is provided with a plurality of grooves for heating the fiber along the length direction thereof, and groove walls are formed on both sides of the grooves; The inclined guide portion extends over a bottom end of the length direction of the groove and the groove wall formed along the hot rail, and the inclined guide portion forms a flow guide portion extending over the bottom end of the groove, and a vertical normal line of a bottom end of the inclined direction of the flow guide portion intersects the collection surface.

14. The hot rail device of claim 13, wherein, The inclined guide portion is configured as at least one of a flat surface or a curved surface.

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