Circulating cooling device for composite short fiber production

Abstract

The utility model discloses a composite short fiber production circulating cooling device which comprises an air supply assembly and a step-by-step cooling assembly, the air supply assembly comprises a vortex tube, the vortex tube is provided with a hot air opening and a cold air opening, the step-by-step cooling assembly comprises a plurality of cooling air pipes and a plurality of temperature control air cavities, the cooling air pipes are communicated with the cold air opening of the vortex tube, and the temperature control air cavities are communicated with the temperature control air cavities. The step-by-step cooling assembly comprises a plurality of cooling air pipes, temperature control air cavities are formed in the cooling air pipes, the temperature control air cavities are communicated with a hot air opening and used for controlling the air outlet temperature of the cooling air pipes, the cooling air pipes are correspondingly provided with the temperature control air cavities, and the multiple cooling air pipes are sequentially arranged according to the air outlet temperature from high to low. And compared with natural cooling, the cooling is more efficient, and can be reduced compared with sudden cooling.

Description

Technical Field

[0001] The utility model relates to the field of short fiber cooling equipment, in particular to a composite short fiber production circulating cooling device. Background Art

[0002] The fiber cooling methods generally include natural cooling and air cooling. The natural cooling speed is relatively slow, and the temperature control of air cooling is relatively single. When the air flow temperature is relatively low, it will cause a sudden cooling effect on the fiber, and the too-fast cooling will cause the fiber to shrink too fast, affecting the fiber shaping and the required fiber size. Content of the Utility Model

[0003] Aiming at the defect that the prior art's sudden cooling affects the fiber forming, the utility model provides a composite short fiber production circulating cooling device.

[0004] In order to solve the above technical problems, the utility model is solved by the following technical solutions: A composite short fiber production circulating cooling device includes

[0005] An air supply component, including a vortex tube, the vortex tube is provided with a hot air outlet and a cold air outlet,

[0006] A step-by-step cooling component, including a plurality of cooling air pipes and a plurality of temperature control air cavities. The cooling air pipes are communicated with the cold air outlet of the vortex tube, the temperature control air cavities are communicated with the hot air outlet, the temperature control air cavities are used to control the air outlet temperature of the cooling air pipes, and each cooling air pipe is correspondingly provided with a temperature control air cavity. A plurality of the cooling air pipes are arranged in sequence with the air outlet temperature decreasing from high to low.

[0007] Furthermore: Each cooling air pipe is communicated with an annular blowing part. The annular blowing part is in an annular tubular shape, and the annular blowing part is provided with a plurality of air outlets.

[0008] Furthermore: Rectifying air cylinders are oppositely arranged on the inner circle of the annular blowing part, and the air outlets of the annular blowing part are all arranged towards the direction of the rectifying air cylinders.

[0009] Furthermore: The circulating cooling device further includes an exhaust air pipe, and the exhaust air pipe can be communicated with the temperature control air cavity to discharge the gas in the temperature control air cavity through the exhaust air pipe.

[0010] Furthermore: A circulating air supply and replenishment component is oppositely arranged on the rectifying air cylinder. The circulating air supply and replenishment component includes a replenishment air pipe, and the temperature control air cavity can be communicated with the replenishment air pipe or the exhaust air pipe.

[0011] Furthermore: Temperature detectors are arranged on the temperature control air cavity, the cooling air pipe and the replenishment air pipe. The replenishment air pipe is located between adjacent cooling air pipes, and the temperature values of adjacent cooling air pipes form a temperature range. The temperature control air cavity is communicated with the replenishment air pipe within the corresponding temperature range.

[0012] Furthermore, the circulating air supply and replenishment component further includes a reversing valve, which is used to switch among the temperature control air chamber, the supply air duct, and the exhaust air duct. When the temperature of the gas discharged from the temperature control air chamber is within the temperature range of the cooling air duct, the reversing valve drives the temperature control air chamber to communicate with the supply air duct. When the temperature of the gas discharged from the temperature control air chamber is not within the temperature range of the cooling air duct, the reversing valve drives the temperature control air chamber to communicate with the exhaust air duct.

[0013] Furthermore, the step-by-step cooling component further includes a distribution pipeline, which includes a hot main pipeline, a plurality of hot branch pipelines opened on the hot main pipeline, a cold main pipeline, and a plurality of cold branch pipelines opened on the cold main pipeline. Temperature control valves are arranged on all the hot branch pipelines.

[0014] Since the present utility model adopts the above technical solutions, it has remarkable technical effects: the cooling air duct is heated by the hot air passing through the temperature control air chamber. Temperature control valves are installed on all the hot branch pipelines. The temperature control valves can be used to control the flow rate passing through the temperature control air chamber, so as to control the direct temperature in the temperature control air chamber. The higher the temperature in the temperature control air chamber, the faster the cooling air duct is heated. Finally, the temperature of the air blown out from the cooling air duct is controlled. Thus, the temperature in a plurality of temperature control air chambers is changed through the temperature control valves, and further the air outlet temperatures of a plurality of cooling air ducts are changed. Through a plurality of temperature control valves, the air outlet temperatures of a plurality of cooling air ducts arranged from high to low in position are also arranged from high to low in sequence, so as to realize the step-by-step cooling effect on the composite fiber. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of a composite short fiber production circulating cooling device;

[0016] Figure 2 is a schematic diagram of the structure of the ring blowing component.

[0017] The names of the parts referred to by the above numerals in the drawings are as follows: 1, frame body; 2, air supply component; 20, vortex tube; 201, air inlet; 202, hot air outlet; 203, cold air outlet; 3, step-by-step cooling component; 30, cooling air duct; 31, temperature control air chamber; 311, exhaust port; 32, distribution pipeline; 321, hot main pipeline; 322, hot branch pipeline; 323, cold main pipeline; 324, cold branch pipeline; 325, temperature control valve; 4, air rectifying cylinder; 40, air rectifying grille; 42, ring blowing component; 43, air outlet; 5, circulating air supply and replenishment component; 50, supply air duct; 51, supply air duct; 506, exhaust air duct. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The present utility model will be further described in detail below in conjunction with the drawings and embodiments.

[0019] Embodiment 1:

[0020] A composite short fiber production cycle cooling device, comprising a frame body 1, an air supply component 2 and a step-by-step cooling component 3, wherein the air supply component 2 and the step-by-step cooling component 3 are both fixedly connected to the frame body 1.

[0021] The air supply component 2 includes a vortex tube 20 and a gas source for supplying high-pressure gas to the vortex tube 20. The gas source can be provided by means of an air pump or a gas storage tank, etc. The vortex tube 20 includes an air inlet 201, a hot air outlet 202 and a cold air outlet. The air inlet 201 is connected to the gas source through a pipeline. The step-by-step cooling component 3 includes a plurality of cooling air ducts 30, a plurality of temperature-controlled air cavities 31 and a distribution pipeline 32. The number of the plurality of cooling air ducts 30 is the same as that of the plurality of temperature-controlled air cavities 31. The distribution pipeline 32 includes a hot main pipe 321, a plurality of hot branch pipes 322 opened on the hot main pipe 321, a cold main pipe 323 and a plurality of cold branch pipes 324 opened on the cold main pipe 323. The cold main pipe 323 is communicated with the cold air outlet of the vortex tube 20. The plurality of cold branch pipes 324 are respectively connected to the plurality of cooling air ducts 30. The hot main pipe 321 is communicated with the hot air outlet 202 of the vortex tube 20. The plurality of hot branch pipes 322 are respectively connected to the plurality of temperature-controlled air cavities 31. The plurality of cooling air ducts 30 are arranged at intervals in the height direction relative to the frame body 1. The temperature-controlled air cavity 31 has a cavity structure and a part of it has a tubular structure. The tubular part of the temperature-controlled air cavity 31 is wrapped around the outside of a part of the cooling air ducts 30. There is a gap between the inner wall of the tubular part of the temperature-controlled air cavity 31 and the outer wall of the cooling air duct 30. This gap is mainly used for the passage of hot air. The hot air passing through the temperature-controlled air cavity 31 heats up the cooling air duct 30. Temperature control valves 325 are installed on all the hot branch pipes 322. The temperature control valves 325 can be used to control the flow rate passing through the temperature-controlled air cavity 31, so as to control the direct temperature in the temperature-controlled air cavity 31. The higher the temperature in the temperature-controlled air cavity 31, the faster the cooling air duct 30 is heated up. Finally, the temperature of the air blown out by the cooling air duct 30 is controlled. Thus, by changing the temperature in the plurality of temperature-controlled air cavities 31 through the temperature control valves 325, the air outlet temperature of the plurality of cooling air ducts 30 is changed. Through the plurality of temperature control valves 325, the air outlet temperatures of the plurality of cooling air ducts 30 arranged from high to low are also arranged from high to low in sequence, so as to realize the step-by-step cooling effect on the composite fiber.

[0022] A rectifying air cylinder 4 is placed inside the frame body 1. The rectifying air cylinder 4 is cylindrical and its central axis is arranged along the height direction of the frame body 1. The air outlet end of the cooling air duct 30 is threadedly connected with an annular blowing part 42. The annular blowing part 42 has an annular tubular structure. A plurality of air outlet openings 43 are annularly arranged in the inner circle of the annular blowing part 42. The annular blowing part 42 is sleeved outside the rectifying air cylinder 4. The plurality of air outlet openings 43 of the annular blowing part 42 are arranged opposite to the rectifying air cylinder 4. A plurality of rectifying grilles 40 are opened on the rectifying air cylinder 4. The cold air blown out by the cooling air duct 30 passes through the air outlet openings 43 of the annular blowing part 42 in sequence, and then passes through the rectifying grilles 40 of the rectifying air cylinder 4, and is evenly blown onto the composite fiber just coming out of the wire drawing device to cool the composite fiber.

[0023] The temperature control air chamber 31 has an exhaust port 311 formed in a pipeline portion. The air that has been heated by the temperature control air chamber 31 for the cooling air duct 30 can be discharged from this exhaust port 311. The frame 1 is also fixedly connected with an exhaust air duct 6. The exhaust port 311 can be connected to the exhaust air duct 6 through a connecting pipe, and the gas in the temperature control air chamber 31 is discharged through the exhaust air duct 6 to avoid the influence of excessive temperature on fiber cooling.

[0024] A circulating air supply component 5 is arranged on the frame 1. The circulating air supply component 5 includes a supply air duct 50 and a reversing valve 51 connected to the supply air duct 50. There are several supply air ducts 50. The supply air duct 50 is tubular and one end thereof faces the rectifying air cylinder 4. Several supply air ducts 50 are all located between the cooling air ducts 30. Temperature detectors are arranged at the exhaust port 311 of the temperature control air chamber 31, the air outlet end of the cooling air duct 30, and the air inlet end of the supply air duct 50. The temperature detectors are used to measure the current temperature at the corresponding positions. The other end of the connecting pipe threadedly connected to the exhaust port 311 of the temperature control air chamber 31 is detachably connected to the exhaust air duct 6. Since the temperature control air chamber 31 has performed a heating operation on the cooling air duct 30, and at the same time the cooling air duct 30 has also cooled the gas discharged from the temperature control air chamber 31. When the temperature detector at the exhaust port 311 of the temperature control air chamber 31 detects that the temperature of the temperature control air chamber 31 after passing through the cooling air duct 30 is within the temperature range of other cooling air ducts 30, the other end of the connecting pipe of this temperature control air chamber 31 can be detached and separated from the exhaust air duct 6, and this connecting pipe can be threadedly connected to the supply air duct 50, and the temperature at the exhaust port 311 of the temperature control air chamber 31 is within the temperature range of this supply air duct 50. Thus, the air flow discharged from the exhaust port 311 of the temperature control air chamber 31 performs an operation of circulating air supply to the fiber cooling process through the supply air duct 50 at the corresponding temperature, and the discharged gas of the temperature control air chamber 31 after being cooled is reasonably utilized. The reversing valve 51 connected to the supply air duct 50 adopts a three-way reversing valve, and the other port of this three-way reversing valve is connected to the exhaust air duct 6. When the temperature detector at the air inlet end of the supply air duct 50 detects that the incoming air temperature is not within the temperature range of this supply air duct 50, the three-way reversing valve performs an air flow switching, and the gas entering the supply air duct 50 from the connecting pipe directly enters the exhaust air duct 6 through the three-way reversing valve, and is prohibited from being discharged from the air outlet end of the supply air duct 50, so as to ensure that the air flow not meeting the temperature range of this supply air duct 50 is discharged from this supply air duct 50 and affects the step-by-step cooling of the step-by-step cooling component 3.

Claims

1. A circulating cooling device for the production of composite short fibers, characterized in that, Comprising: An air supply assembly (2), including a vortex tube (20), the vortex tube (20) being provided with a hot air outlet (202) and a cold air outlet. A step-by-step cooling assembly (3), including a plurality of cooling air ducts (30) and a plurality of temperature-controlled air cavities (31), the cooling air ducts (30) communicating with the cold air outlet of the vortex tube (20), the temperature-controlled air cavities (31) communicating with the hot air outlet (202), the temperature-controlled air cavities (31) being used to control the outlet air temperature of the cooling air ducts (30), each of the cooling air ducts (30) being correspondingly provided with a temperature-controlled air cavity (31), and the plurality of cooling air ducts (30) being arranged in sequence from high to low in terms of outlet air temperature.

2. The composite short fiber production cycle cooling device according to claim 1, characterized in that, Each of the cooling air ducts (30) is connected to an annular blowing member (42), the annular blowing member (42) being in an annular tubular shape and having a plurality of air outlets (43) formed therein.

3. A composite staple fiber production cycle cooling device according to claim 2, characterized in that, A rectifying air cylinder (4) is oppositely arranged inside the inner circle of the annular blowing member (42), and the air outlets (43) of the annular blowing member (42) are all formed in a direction towards the rectifying air cylinder (4).

4. A composite staple fiber production cycle cooling device according to claim 3, characterized in that, The circulating cooling device further includes an exhaust air duct (6), the exhaust air duct (6) being capable of communicating with the temperature-controlled air cavity (31) to discharge the gas inside the temperature-controlled air cavity (31).

5. A composite staple fiber production cycle cooling device according to claim 4, characterized in that, A circulating air supply replenishment assembly (5) is oppositely arranged with respect to the rectifying air cylinder (4), the circulating air supply replenishment assembly (5) including a replenishment air duct (50), and the temperature-controlled air cavity (31) being capable of communicating with the replenishment air duct (50) or the exhaust air duct (6).

6. The circulating cooling device for the production of composite staple fibers according to claim 5, wherein, Temperature detectors are provided in the temperature-controlled air cavity (31), the cooling air ducts (30), and the replenishment air duct (50). The replenishment air duct (50) is located between adjacent cooling air ducts (30), and the temperature values of adjacent cooling air ducts (30) form a temperature range. The temperature-controlled air cavity (31) communicates with the replenishment air duct (50) within the corresponding temperature range.

7. A composite staple fiber production cycle cooling device according to claim 6, characterized in that, The circulating air supply replenishment assembly (5) further includes a reversing valve (51), the reversing valve (51) being used for switching among the temperature-controlled air cavity (31), the replenishment air duct (50), and the exhaust air duct (6). When the temperature of the gas discharged from the temperature-controlled air cavity (31) is within the temperature range of the cooling air ducts (30), the reversing valve (51) drives the temperature-controlled air cavity (31) to communicate with the replenishment air duct (50). When the temperature of the gas discharged from the temperature-controlled air cavity (31) is not within the temperature range of the cooling air ducts (30), the reversing valve (51) drives the temperature-controlled air cavity (31) to communicate with the exhaust air duct (6).

8. A composite staple fiber production cycle cooling device according to claim 1, characterized in that, The step-by-step cooling assembly (3) further includes a distribution pipeline (32), the distribution pipeline (32) including a hot main pipeline (321), a plurality of hot branch pipelines (322) opened on the hot main pipeline (321), a cold main pipeline (323), and a plurality of cold branch pipelines (324) opened on the cold main pipeline (323), and temperature control valves (325) being provided on each of the hot branch pipelines (322).

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