PEEK monofilament spinning drafting mechanism for PEM electrolytic bath

Abstract

The utility model discloses a PEEK monofilament spinning drafting mechanism for a PEM electrolytic bath, which comprises a frame, a drafting motor and an electromagnetic induction heating roller, the drafting motor is mounted on the frame through an angle adjusting component, and a cold box filled with cold oil is fixedly mounted at the front end of a casing of the drafting motor. An output shaft of the drafting motor forwards penetrates through the cold box and is coaxially connected with the electromagnetic induction heating roller, a front bearing seat and a front bearing are arranged in the cold box, the front bearing seat is fixed with the cold box, the front bearing is sleeved outside the output shaft of the drafting motor extending into the cold box so as to support the front end of the output shaft of the drafting motor, and the cold box is connected with a front bearing cooling system. Comprising a cold box outlet communicated with a heat exchanger shell pass inlet, a heat exchanger shell pass outlet communicated with an oil tank inlet, an oil tank outlet communicated with a filter inlet, a filter outlet communicated with the cold box inlet, a heat exchanger tube pass outlet communicated with a water tank inlet, and a water cooler outlet communicated with the heat exchanger tube pass inlet. The utility model has the advantage of high use stability.

Description

Technical Field

[0001] The utility model relates to the technical field of PEEK monofilament preparation, in particular to a PEEK monofilament spinning and drawing mechanism for a PEM electrolytic cell. Background Art

[0002] In the water electrolysis hydrogen production industry, the proton exchange membrane (PEE) is a core component of PEEK (Polyetheretherketone) (PEEK) systems. The membrane typically consists of a base fabric and a perfluorosulfonic acid resin coated on the surface. As a crucial component of the PEEK, its mechanical strength and thickness directly impact the membrane's overall strength and thickness. Polyetheretherketone (PEEK) is a linear, fully aromatic, structurally consistent polymer with high crystallinity. PEEK monofilaments obtained through melt extrusion are widely used in the production of base fabrics due to their exceptional properties, including high strength, toughness, high temperature resistance, corrosion resistance, and flame retardancy. The production of PEEK monofilaments requires multiple processes, including drying, extrusion, metering, spinning, cooling, oiling, bundling, multi-stage hot roller drawing and shaping, multifilament winding, and splitting.

[0003] The PEEK spinning drafting mechanism is a critical piece of equipment in the multi-stage hot roller drafting and shaping process. Currently used PEEK spinning drafting mechanisms primarily consist of a drafting motor and an electromagnetic induction heating roller coaxially connected to the motor's output shaft. A drawback of the current PEEK spinning drafting mechanism is that during the process of heating and drawing the PEEK monofilaments with the electromagnetic induction heating roller, the high temperature of the electromagnetic induction heating roller is transmitted to the motor via the motor output shaft, which can easily cause deformation and damage to the bearings supporting the motor output shaft. This deformation and damage can cause the electromagnetic induction heating roller to jam during rotation, impacting the stability of the equipment. Utility Model Content

[0004] The utility model aims to provide a PEEK monofilament spinning and drawing mechanism for a PEM electrolytic cell with high use stability.

[0005] To achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a PEEK monofilament spinning and drawing mechanism for a PEM electrolytic cell, comprising a frame, a drawing motor and an electromagnetic induction heating roller, wherein the drawing motor is mounted on the frame through an angle adjustment assembly, a cold box filled with cold oil is fixedly mounted on the front end of the housing of the drawing motor, the output shaft of the drawing motor passes through the cold box forward and is coaxially connected to the electromagnetic induction heating roller, a front bearing seat and a front bearing are provided in the cold box, the front bearing seat is fixed to the cold box, and the front bearing is sleeved on the outside of the output shaft of the drawing motor extending into the cold box to support the output of the drawing motor At the front end of the shaft, the cold box is connected to a front bearing cooling system for online cooling of the front bearing. The front bearing cooling system includes: a heat exchanger, a chiller, a water pump, a water tank, an oil tank, an oil pump and a filter. The outlet of the cold box is connected to the shell-side inlet of the heat exchanger, the shell-side outlet of the heat exchanger is connected to the inlet of the oil tank, the outlet of the oil tank is connected to the inlet of the filter through the oil pump, the outlet of the filter is connected to the inlet of the cold box, the pipe-side outlet of the heat exchanger is connected to the inlet of the water tank, the outlet of the water tank is connected to the inlet of the chiller through the water pump, and the outlet of the chiller is connected to the pipe-side inlet of the heat exchanger.

[0006] Furthermore, in the aforementioned PEEK monofilament spinning and drawing mechanism for a PEM electrolytic cell, an air cooling component is provided between the cold box and the electromagnetic induction heating roller for cooling the output shaft of the drawing motor therebetween.

[0007] Furthermore, the aforementioned PEEK monofilament spinning and drawing mechanism for a PEM electrolyzer, wherein: the air cooling component includes: a bellows and a cold air blower, the output shaft of the drawing motor passes through the cold box and the bellows in sequence and is coaxially connected to the electromagnetic induction heating roller, the bellows has an inlet and an outlet, and the outlet of the cold air blower is connected to the inlet of the bellows.

[0008] Furthermore, the aforementioned PEEK monofilament spinning and drawing mechanism for a PEM electrolyzer, wherein: the structure of the angle adjustment component includes: an annular bracket is fixedly sleeved on the outside of the drawing motor, and coaxial vertical shafts are respectively provided at the upper and lower ends of the annular bracket. The annular bracket is hinged to the frame through the vertical shaft, and two adjustment plates are circumferentially installed on the outer peripheral wall of the annular bracket. The two adjustment plates are located on the left and right sides of the annular bracket. A fixed plate fixed to the frame is provided directly behind each adjustment plate, and a threaded hole is provided on each adjustment plate. An adjustment bolt that can support the corresponding side fixed plate is threadedly connected in the threaded hole of each adjustment plate.

[0009] Furthermore, the aforementioned PEEK monofilament spinning and drawing mechanism for a PEM electrolyzer, wherein: the structure of the filter includes: a filter body, a filter cartridge with open front and rear ends and filter holes evenly distributed on the outer wall, and a pressure cover, a flow channel is provided in the filter body, one end of the flow channel penetrates to the outer wall of one side of the filter body to form a flow channel inlet, the other end of the flow channel penetrates to the outer wall of the other side of the filter body to form a flow channel outlet, the middle part of the flow channel is reduced in diameter to form an annular step surface, and an installation port is provided on the side wall of the filter body opposite to the annular step surface, a positioning sleeve facing the annular step surface is fixed at the installation port, the filter cartridge is inserted into the flow channel from the positioning sleeve and presses against the annular step surface, the pressure cover covers the barrel opening of the positioning sleeve and presses the filter cartridge tightly against the annular step surface of the flow channel.

[0010] Furthermore, in the aforementioned PEEK monofilament spinning and drawing mechanism for a PEM electrolyzer, the gland is connected to the positioning sleeve by threaded engagement.

[0011] Furthermore, the aforementioned PEEK monofilament spinning and drawing mechanism for a PEM electrolyzer, wherein: a front-channel pressure sensor for real-time monitoring of the flow channel inlet pressure is provided at the flow channel inlet of the filter, and a rear-channel pressure sensor for real-time monitoring of the flow channel outlet pressure is provided at the flow channel outlet of the filter, and the front-channel pressure sensor and the rear-channel pressure sensor are simultaneously connected to the PLC controller signal.

[0012] Through the implementation of the above technical solutions, the beneficial effects of the present invention are as follows: (1) it can effectively reduce the heat transferred to the front bearing by the electromagnetic induction heating roller during operation, avoid the front bearing from being deformed and damaged due to high temperature, effectively protect the front bearing, thereby improving the overall stability of the equipment and extending the service life of the equipment; (2) by designing a filter and a pressure sensor, it can effectively ensure the heat conduction effect of the cold oil on the front bearing, further reduce the heat transferred to the front bearing by the electromagnetic induction heating roller during operation, effectively protect the front bearing, thereby improving the overall stability of the equipment; (3) the left and right swing angles of the stretching motor can be adjusted by adjusting the extended lengths of the two adjusting bolts, and the left and right swing positions of the electromagnetic induction heating roller can be adjusted synchronously, thereby adjusting the stretching effect of the electromagnetic induction heating roller on the PEEK monofilament, which is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structural principle of a PEEK single-filament spinning and drawing mechanism for a PEM electrolytic cell described in the utility model.

[0014] Figure 2 Schematic diagram of the installation structure of the drafting motor on the frame.

[0015] Figure 3 A three-dimensional diagram of the ring bracket.

[0016] Figure 4 Schematic diagram of the filter structure.

[0017] Figure 5 for Figure 4 Schematic diagram of the structure of the filter body shown in.

[0018] Figure 6 for Figure 4 Schematic diagram of the structure of the filter cartridge shown in . DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

[0020] like Figure 1 As shown, the PEEK monofilament spinning and drawing mechanism for a PEM electrolytic cell comprises a frame 1, a drawing motor 2 and an electromagnetic induction heating roller 3. The drawing motor 2 is mounted on the frame 1 through an angle adjustment assembly. A cold box 4 filled with cold oil is fixedly mounted on the front end of the housing of the drawing motor 2. The output shaft 211 of the drawing motor 2 passes forward through the cold box 4 and is coaxially connected to the electromagnetic induction heating roller 3. A front bearing seat 5 and a front bearing 6 are provided in the cold box 4. The front bearing seat 5 is fixed to the cold box 4. The front bearing 6 is sleeved on the outside of the drawing motor output shaft 211 extending into the cold box 4 to support the front end of the drawing motor output shaft 211. The cold box 4 is connected to A front bearing cooling system for online cooling of the front bearing 6, the front bearing cooling system comprising: a heat exchanger 7, a chiller 8, a water pump 9, a water tank 10, an oil tank 11, an oil pump 12 and a filter 13, the outlet of the cold box 4 being connected to the shell-side inlet of the heat exchanger 7, the shell-side outlet of the heat exchanger 7 being connected to the inlet of the oil tank 11, the outlet of the oil tank 11 being connected to the inlet of the filter 13 via the oil pump 12, the outlet of the filter 13 being connected to the inlet of the cold box 4, the tube-side outlet of the heat exchanger 7 being connected to the inlet of the water tank 10, the outlet of the water tank 10 being connected to the inlet of the chiller 8 via the water pump 9, and the outlet of the chiller 8 being connected to the tube-side inlet of the heat exchanger 7;

[0021] In this embodiment, an air cooling component is provided between the cold box 4 and the electromagnetic induction heating roller 3 for cooling the output shaft 211 of the drafting motor therebetween; the air cooling component comprises: a bellows 14 and an air cooler 15, the output shaft 211 of the drafting motor 2 passes through the cold box 4 and the bellows 14 in sequence and is coaxially connected to the electromagnetic induction heating roller 3, the bellows 14 has an inlet and an outlet, and the outlet of the air cooler 15 is connected to the inlet of the bellows 14; in the process of the drafting motor 2 driving the electromagnetic induction heating roller 3 to draft the PEEK monofilament through the output shaft 211, the air cooler 15 will continuously pass cold air into the bellows 14, thereby cooling the output shaft 211 of the drafting motor between the cold box 4 and the electromagnetic induction heating roller 3, further reducing the heat transferred to the front bearing 6 through the output shaft 211 of the drafting motor during operation, further protecting the front bearing 6, and further preventing the front bearing 6 from being deformed and damaged due to high temperature, thereby improving the overall stability of the equipment;

[0022] In this embodiment, if Figure 2 、 Figure 3 As shown, the structure of the angle adjustment assembly includes: an annular bracket 16 is fixedly sleeved on the outside of the drafting motor 2, and a coaxial vertical shaft 17 is respectively provided at the upper and lower ends of the annular bracket 16. The annular bracket 17 is hinged to the frame 1 through the vertical shaft 17, and two adjustment plates are installed circumferentially on the outer peripheral wall of the annular bracket 16. The two adjustment plates are adjustment plate 1 181 and adjustment plate 2 182. Adjustment plate 1 181 and adjustment plate 2 182 are respectively located on the left and right sides of the annular bracket 16, and a fixed plate fixed to the frame 1 is respectively provided directly behind the adjustment plate 181 and the adjustment plate 2 182. 19. Threaded holes 20 are respectively provided on the adjusting plate 181 and the adjusting plate 2 182. Adjusting bolts 21 capable of supporting the corresponding side fixing plates 19 are respectively threadedly connected in the threaded holes 20 of the adjusting plate 181 and the threaded holes 20 of the adjusting plate 2 182. When the drafting motor 2 drives the electromagnetic induction heating roller 3 to draft the PEEK monofilament via the output shaft 211, the extending length of the two adjusting bolts 21 can be adjusted to adjust the left and right angles of the drafting motor 2 and the left and right angles of the electromagnetic induction heating roller 3 simultaneously, thereby adjusting the drafting effect of the electromagnetic induction heating roller 3 on the PEEK monofilament.

[0023] In this embodiment, if Figure 4 、 Figure 5 、 Figure 6As shown, the structure of the filter 13 includes: a filter body 131, a filter cartridge 133 with open front and rear ends and filter holes 132 evenly distributed on the outer wall, and a pressure cover 134. A flow channel 135 is provided in the filter body 131. One end of the flow channel 135 penetrates the outer wall of one side of the filter body 131 to form a flow channel inlet 136, and the other end of the flow channel 135 penetrates the outer wall of the other side of the filter body 131 to form a flow channel outlet 137. The middle part of the flow channel 135 is reduced in diameter to form an annular step surface 138. A mounting port is provided on the side wall of the filter body 131 opposite to the annular step surface 138. A positioning sleeve 139 facing the annular step surface 138 is fixed at the installation port, and the filter cartridge 133 is inserted into the flow channel 135 from the positioning sleeve 139 and presses against the annular step surface 138. The pressure cap 134 covers the tube mouth of the positioning sleeve 139 and presses the filter cartridge 133 against the annular step surface 138 of the flow channel 135. In this embodiment, the pressure cap 134 is connected to the positioning sleeve 139 by threaded engagement. A front-channel pressure sensor 22 for real-time monitoring of the flow channel inlet pressure is provided at the flow channel inlet 136 of the filter 13, and a rear-channel pressure sensor 23 for real-time monitoring of the flow channel outlet pressure is provided at the flow channel outlet 137 of the filter 13. The front-channel pressure sensor 22 and the rear-channel pressure sensor 23 are simultaneously connected to the PLC controller 24. Signal connection. In this actual working process, the PLC controller 24 will collect the pressure values ​​fed back by the front-channel pressure sensor 22 and the rear-channel pressure sensor 23 in real time. When the PLC controller 24 calculates that the pressure difference between the flow channel inlet pressure fed back by the front-channel pressure sensor 22 and the flow channel outlet pressure fed back by the rear-channel pressure sensor 23 reaches 0.5MPa, the PLC controller 24 determines that the filter cartridge is blocked and needs to be replaced, and will issue an alarm to remind the staff to replace it in time; when replacing the filter cartridge 133, just loosen and remove the pressure cap 134 to take out the old filter cartridge 133, and then insert the new filter cartridge 133 from the positioning sleeve 139 into the flow channel 135 and press against the annular step surface 138, and then tighten the pressure cap 134 again.

[0024] In the process of the drawing motor 2 driving the electromagnetic induction heating roller 3 to draw the PEEK monofilament through the output shaft 211, the cold oil in the oil tank 11 is continuously filtered through the filter 13 by the oil pump 12 and then passed into the cold box 4. The cold oil entering the cold box 4 will cool the front bearing 6 used to support the front end of the drawing motor output shaft 211, thereby preventing the front bearing 6 from being deformed and damaged due to high temperature; the hot oil with a higher temperature after heat exchange with the front bearing 6 in the cold box 4 enters the shell side of the heat exchanger 7, and the hot oil is discharged from the shell side of the heat exchanger 7 to the shell side. During the flow of the water in the outlet, the water pump 9 will continuously pass the water in the water tank 10 into the chiller 8. The chiller 8 will cool the water to form cold water and pass it into the pipe side of the heat exchanger 7. The cold water passing through the pipe side of the heat exchanger will exchange heat with the hot oil passing through the shell side of the heat exchanger, thereby cooling the hot oil in the shell side of the heat exchanger again to form cold oil. The cold oil formed after heat exchange in the heat exchanger 7 will flow back to the oil tank 11 for storage. In the process of the cold oil continuously passing through the filter 13 to enter the cold box 4, the upstream pressure sensor 22 will monitor the flow of the filter 13 in real time. The flow channel inlet pressure and the back-channel pressure sensor 23 will monitor the flow channel outlet pressure of the filter 13 in real time. At the same time, the PLC controller 24 will collect the pressure values ​​fed back by the front-channel pressure sensor 22 and the back-channel pressure sensor 23 in real time. When the PLC controller 24 calculates that the pressure difference between the flow channel inlet pressure fed back by the front-channel pressure sensor 22 and the flow channel outlet pressure fed back by the back-channel pressure sensor 23 reaches 0.5MPa, the PLC controller 24 determines that the filter cartridge is blocked and needs to be replaced, and will issue an alarm to prompt the staff to replace it in time; in the process of the cold oil in the cold box 4 cooling the front bearing 6, the air cooler 15 will also continuously pass cold air into the wind box 14, thereby cooling the drafting motor output shaft 211 between the cold box 4 and the electromagnetic induction heating roller 3, further reducing the heat transferred from the electromagnetic induction heating roller 3 to the front bearing 6 through the drafting motor output shaft 211 during operation, further protecting the front bearing 6, and further avoiding the front bearing 6 from deformation and damage due to high temperature, thereby improving the overall stability of the equipment.

[0025] The advantages of the present invention are: (1) it can effectively reduce the heat transferred to the front bearing by the electromagnetic induction heating roller during operation, avoid deformation and damage of the front bearing due to high temperature, effectively protect the front bearing, thereby improving the overall stability of the equipment and extending the service life of the equipment; (2) by designing a filter and a pressure sensor, it can effectively ensure the heat conduction effect of the cold oil on the front bearing, further reduce the heat transferred to the front bearing by the electromagnetic induction heating roller during operation, effectively protect the front bearing, thereby improving the overall stability of the equipment; (3) the left and right swing angles of the stretching motor can be adjusted by adjusting the extended lengths of the two adjusting bolts, and the left and right swing positions of the electromagnetic induction heating roller can be adjusted synchronously, thereby adjusting the stretching effect of the electromagnetic induction heating roller on the PEEK monofilament, which is more convenient to use.

[0026] The above description is only a preferred embodiment of the present invention and does not constitute any other form of limitation to the present invention. Any modification or equivalent change made based on the technical essence of the present invention shall still fall within the scope of protection required by the present invention.

Claims

1. A PEEK monofilament spinning and drawing mechanism for a PEM electrolyzer, characterized by: The front bearing is mounted on the front of the frame, and the front bearing is connected to the front of the frame by the oil pump, and the oil pump is connected to the oil pump outlet.

2. The PEEK monofilament spinning and drawing mechanism for a PEM electrolyzer according to claim 1, characterized in that: An air cooling component is provided between the cold box and the electromagnetic induction heating roller for cooling the output shaft of the drafting motor therebetween.

3. The PEEK monofilament spinning and drawing mechanism for a PEM electrolyzer according to claim 2, characterized in that: The air cooling component includes: a bellows and an air cooler. The output shaft of the drafting motor passes through the air cooler and the bellows in sequence and is coaxially connected to the electromagnetic induction heating roller. The bellows has an inlet and an outlet. The outlet of the air cooler is connected to the inlet of the bellows.

4. A PEEK monofilament spinning and drawing mechanism for a PEM electrolyzer according to claim 1, 2 or 3, characterized in that: The structure of the angle adjustment assembly includes: an annular bracket is fixedly sleeved on the outside of the drafting motor, coaxial vertical shafts are respectively provided at the upper and lower ends of the annular bracket, the annular bracket is hinged to the frame through the vertical shaft, and two adjustment plates are circumferentially installed on the outer peripheral wall of the annular bracket, the two adjustment plates are located on the left and right sides of the annular bracket, and a fixed plate fixed to the frame is provided directly behind each adjustment plate, and a threaded hole is provided on each adjustment plate, and an adjustment bolt that can support the corresponding side fixed plate is threadedly connected in the threaded hole of each adjustment plate.

5. The PEEK monofilament spinning and drawing mechanism for a PEM electrolyzer according to claim 1, characterized in that: The structure of the filter includes: a filter body, a filter cartridge with open front and rear ends and filter holes evenly distributed on the outer wall, and a pressure cap. A flow channel is provided in the filter body, one end of the flow channel penetrates to the outer wall of one side of the filter body to form a flow channel inlet, and the other end of the flow channel penetrates to the outer wall of the other side of the filter body to form a flow channel outlet. The middle part of the flow channel is reduced in diameter to form an annular step surface, and a mounting port is provided on the side wall of the filter body opposite to the annular step surface. A positioning sleeve facing the annular step surface is fixed to the mounting port, and the filter cartridge is inserted into the flow channel from the positioning sleeve and presses against the annular step surface. The pressure cap covers the barrel opening of the positioning sleeve and presses the filter cartridge tightly against the annular step surface of the flow channel.

6. The PEEK monofilament spinning and drawing mechanism for a PEM electrolyzer according to claim 5, characterized in that: The gland is connected to the positioning sleeve through threaded engagement.

7. The PEEK monofilament spinning and drawing mechanism for a PEM electrolyzer according to claim 5, characterized in that: A front-channel pressure sensor for real-time monitoring of the flow channel inlet pressure is provided at the flow channel inlet of the filter, and a rear-channel pressure sensor for real-time monitoring of the flow channel outlet pressure is provided at the flow channel outlet of the filter. The front-channel pressure sensor and the rear-channel pressure sensor are simultaneously connected to the PLC controller signal.

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