Heat-preservation circulating oil supply system of hair fiber spinning box

Abstract

The utility model relates to a heat-preservation circulating oil supply system for a hair fiber spinning box, which comprises a height adjusting device, an oil liquid heating tank, a heat exchange heat-preservation flow guide structure, a return tank and an oil pump, the oil liquid heating tank is arranged on the height adjusting device, and the heat exchange heat-preservation flow guide structure is arranged outside the spinning box; the lower end of the oil heating tank is connected with the bottom of the heat-exchange heat-preservation diversion structure through an oil inlet pipeline, the top of the heat-exchange heat-preservation diversion structure is connected with the bottom of the return tank through an oil outlet pipeline, and the oil pump is arranged at the bottom in the return tank and connected with the upper portion of the oil heating tank through an oil return pipeline. By adopting the principle that heated conduction oil is automatically injected to the outside of the spinning box by virtue of height difference to heat and preserve heat of a melt, the oil pump works intermittently, so that the flow speed of the conduction oil in the hexahedral heating and heat preservation cavity is slowed down, the heat exchange efficiency is improved, and the service life of the oil pump is prolonged; the device is arranged at the high position of a workshop, does not occupy the ground space, and has high safety.

Description

Technical Field

[0001] The utility model belongs to the technical field of hair fiber production, and particularly relates to a heat-insulating circulating oil supply system for a hair fiber spinning box. Background Art

[0002] During the spinning process of hair fibers, the spinning box uses heat transfer oil for heating and insulation. The heat transfer oil is usually supplied by an oil pump as a power source. The oil pump works continuously, and the high-temperature heat transfer oil keeps passing through the oil pump, which not only consumes a lot of energy but also makes the oil pump easy to be damaged. The bigger problem is that the heat exchange time between the heat transfer oil and the molten material inside the spinning box is short (the heat transfer oil flow rate is fast), the heat energy utilization efficiency is low, and the temperature fluctuation in the spinning box is large. Utility Model Content

[0003] In order to solve the above technical problems existing in the prior art, the utility model provides a fiber spinning box insulation circulation oil supply system for hair, which relies on the oil level difference as the power for supplying heat transfer oil, has an oil pump that is not easily damaged, has high heat exchange efficiency, and has a more stable temperature.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions: a fiber spinning box insulation circulation oil supply system, including a height adjustment device, an oil heating tank, a heat exchange insulation guide structure, a reflux tank and an oil pump. The oil heating tank is arranged on the height adjustment device, and the heat exchange insulation guide structure is arranged outside the spinning box. The lower end of the oil heating tank is connected to the bottom of the heat exchange insulation guide structure through an oil inlet pipeline, and the top of the heat exchange insulation guide structure is connected to the bottom of the reflux tank through an oil outlet pipeline. The oil pump is arranged at the bottom of the reflux tank, and the oil pump is connected to the upper part of the oil heating tank through the return oil pipeline.

[0005] The height adjustment device includes a hand hoist and four vertically arranged channel steel slides. The hand hoist is hung on the workshop roof beam. The four channel steel slides are arranged in a circular array with the hand hoist as the center. A connecting plate is fixed to the upper end of each channel steel slide. The connecting plate is fixed to the bottom of the workshop roof beam by bolts. The top of the oil heating tank is connected to the hand hoist through a lifting rope. The outer circle of the oil heating tank is provided with a guide wheel that rolls along the channel steel slide. An anti-fall buffer device is provided between the lower ends of the four channel steel slides.

[0006] The anti-falling buffer device comprises a sleeve for passing through the oil inlet pipeline, the center line of the sleeve coincides with the center line of the oil heating tank, the lower end of each channel steel slide is connected with the outer circle of the sleeve through a first cross bar, the outer ends of two adjacent first cross bars are connected through a second cross bar, the middle of each second cross bar is connected with the intersection of the outer circle of the sleeve and the inner side of the first cross bar through a third cross bar, the top of the first cross bar, the second cross bar and the third cross bar is fixedly provided with a plurality of spring seats, each spring seat is provided with a spring, the bottom of the oil heating tank is in a conical structure, and the height of the spring gradually shortens from outside to inside and is matched with the conical structure.

[0007] The oil heating tank is provided with an electric heating coil, a safety valve and an oil supplementing opening at the top, and an oil cover is arranged at the oil supplementing opening.

[0008] The heat exchange and heat preservation guide structure comprises a shell arranged outside the spinning beam, a heat insulation layer is arranged outside the shell, six heat preservation cavities are arranged between the six surfaces of the inner wall of the shell and the six surfaces of the outer wall of the spinning beam, an oil outlet connector and an oil inlet connector are arranged at the top center and the bottom center of the six heat preservation cavities and pass through the heat insulation layer, a plurality of upper guide baffles are arranged at the lower end of the oil outlet connector and diverge to the periphery of the top of the six heat preservation cavities, a plurality of lower guide baffles are arranged at the upper end of the oil inlet connector and diverge to the periphery of the bottom of the six heat preservation cavities, the number of the upper guide baffles and the lower guide baffles is equal and they are one-to-one corresponding, the outer ends of the upper guide baffles and the lower guide baffles corresponding to each other are connected through vertical guide baffles arranged at the side of the six heat preservation cavities, the outer sides of the upper guide baffles, the lower guide baffles and the vertical guide baffles are connected with the inner wall of the shell, and the inner sides of the upper guide baffles, the lower guide baffles and the vertical guide baffles are connected with the outer wall of the spinning beam.

[0009] The reflux tank is arranged above the spinning beam, a lower liquid level sensor is arranged at the lower part of the reflux tank, an upper liquid level sensor is arranged at the upper part of the reflux tank, the signal output ends of the temperature sensor, the lower liquid level sensor and the upper liquid level sensor are connected with a PLC controller, and the signal output ends of the PLC controller are connected with the switch of the electric heating coil and the control of the oil pump.

[0010] A flow regulating valve and an oil inlet hose are arranged on the oil inlet pipeline, and an oil return hose is arranged on the oil return pipeline.

[0011] Compared with the prior art, the above technical scheme has the following beneficial effects:

[0012] (1) Height adjusting device adopts hand chain block as power, convenient operation, and fixed at a certain height, safe and reliable, the utility model adopts workshop roof beam as the installation fixed part of channel steel slide and electric chain block according to local conditions. The outer circle of oil heating tank is provided with guide wheels rolling along the channel steel slide, so that the oil heating tank can be avoided from shaking when adjusting the height of oil heating tank and being stable at a certain height.

[0013] (2) The setting of anti-falling buffer device is to prevent the oil heating tank from suddenly falling when the hand chain block fails or breaks down, to avoid hitting the staff or other equipment below, and to reduce the corresponding loss. The anti-falling buffer device is first connected by a platform frame formed by a plurality of first, second and third horizontal rods fixedly connected at the lower ends of the four channel steel slides, a plurality of springs are arranged on the platform frame, the height of the springs is high outside and low inside (in the radial direction of the sleeve, from far to near, from outside to inside), which is matched with the conical structure at the bottom of the oil heating tank, after the oil heating tank suddenly falls, all the springs can contact the conical structure at the same time, thereby achieving good buffering effect, and the damage of the oil heating tank can be avoided. The sleeve serves to connect the inner ends of the first and third horizontal rods, and is also used to pass through the oil inlet pipeline.

[0014] (3) When the temperature of the heat conducting oil in the oil heating tank reaches the highest threshold value set by the temperature sensor after being heated by the electric heating coil, the PLC controller sends a closing signal to the electric heating coil, and the electric heating coil stops heating. When the temperature of the heat conducting oil drops to the lowest threshold value set by the temperature sensor, the PLC controller sends an opening signal to the electric heating coil, and the electric heating coil starts heating. Such a cycle operation is repeated. After the heat conducting oil is heated, in order to avoid the influence of the safety caused by the over-high air pressure in the oil heating tank, the safety valve is opened to reduce the pressure in the oil heating tank, thereby ensuring the safety of the heated heat conducting oil. The heat conducting oil is added or supplemented into the oil heating tank through the oil supplementing port.

[0015] (4) The plurality of upper, lower and vertical flow guide baffles serve to connect the shell and the spinning beam as a whole, and divide the six-sided heating and insulating cavity into a plurality of flow guide channels, so that the heat conducting oil flows more orderly from bottom to top, and the occurrence of dead angle can be avoided as much as possible. The inner sides of the upper, lower and vertical flow guide baffles are connected with the outer wall of the spinning beam, and the heat of the upper, lower and vertical flow guide baffles can be directly conducted to the spinning beam, so that the upper, lower and vertical flow guide baffles also have the effect of increasing the heat exchange area.

[0016] (5) The upper and lower liquid level sensors are arranged in the reflux tank, and the PLC controller is used to control the opening and closing of the oil pump, so that the oil pump works intermittently, thereby prolonging the service life of the oil pump.

[0017] (6) An oil inlet hose is installed on the oil inlet pipeline, and an oil return hose is installed on the oil return pipeline to adapt to the height adjustment of the oil heating tank.

[0018] To sum up, the utility model adopts the principle that the heated heat-conducting oil is automatically injected into the outside of the spinning box by relying on the height difference to heat and keep the melt warm, so that the oil pump works intermittently, which not only slows down the flow rate of the heat-conducting oil in the hexahedral heating and insulation cavity, thereby improving the heat exchange efficiency, but also extends the service life of the oil pump; the utility model is arranged at a high place in the workshop, does not occupy ground space, and has high safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural diagram of the utility model;

[0020] Figure 2 yes Figure 1 A top view of the space above the hexahedral heating and insulation cavity;

[0021] Figure 3 yes Figure 1 Top view of the middle fall protection buffer device. DETAILED DESCRIPTION

[0022] The embodiments of the present invention are described in further detail below with reference to the accompanying drawings and examples.

[0023] like Figure 1 、 Figure 2 and Figure 3 As shown, the heat-insulating circulating oil supply system for a fiber spinning box of the present invention comprises a height adjustment device, an oil heating tank 1, a heat exchange heat-insulating guide structure, a reflux tank 2 and an oil pump 3. The oil heating tank 1 is arranged on the height adjustment device, the heat exchange heat-insulating guide structure is arranged outside the spinning box 4, the lower end of the oil heating tank 1 is connected to the bottom of the heat exchange heat-insulating guide structure through an oil inlet pipeline 5, the top of the heat exchange heat-insulating guide structure is connected to the bottom of the reflux tank 2 through an oil outlet pipeline 6, the oil pump 3 is arranged at the bottom of the reflux tank 2, and the oil pump 3 is connected to the upper part of the oil heating tank 1 through an oil return pipeline 7.

[0024] The height adjustment device includes a hand hoist 8 (an electric hoist can also be used) and four vertically arranged channel steel slides 9. The hand hoist 8 is hung on the workshop roof beam 11, and the four channel steel slides 9 are arranged in a circular array with the hand hoist 8 as the center. A connecting plate 10 is fixed to the upper end of each channel steel slide 9, and the connecting plate 10 is fixed to the bottom of the workshop roof beam 11 by bolts. The top of the oil heating tank 1 is connected to the hand hoist 8 by a lifting rope. The outer circle of the oil heating tank 1 is provided with a guide wheel 12 that rolls along the channel steel slide 9, and an anti-fall buffer device is provided between the lower ends of the four channel steel slides 9.

[0025] The anti-fall buffer device includes a sleeve 13 for passing through the oil inlet pipeline 5. The center line of the sleeve 13 coincides with the center line of the oil heating tank 1. The lower end of each channel steel slide 9 is connected to the outer circle of the sleeve 13 through a first cross bar 14, and the outer ends of two adjacent first cross bars 14 are connected through a second cross bar 15. The middle of each second cross bar 15 is connected to the intersection of the outer circle of the sleeve 13 and the inner side of the first cross bar 14 through a third cross bar 16. Several spring seats 17 are fixed on the top of the first cross bar 14, the second cross bar 15 and the third cross bar 16, and each spring seat 17 is provided with a spring 18. The bottom of the oil heating tank 1 is a conical structure 19. The height of the spring 18 gradually shortens from the outside to the inside to adapt to the conical structure 19.

[0026] An electric heating coil 20 is provided inside the oil heating tank 1 , a safety valve 21 and an oil replenishing port are provided on the top of the oil heating tank 1 , an oil cover 22 is provided at the oil replenishing port, and a temperature sensor 23 is provided on the side of the oil heating tank 1 .

[0027] The heat exchange insulation and flow guiding structure includes a shell 24 arranged outside the spinning box 4, a heat insulation layer 25 is arranged outside the shell 24, and a hexahedral heating and heat preservation cavity 26 is provided between the six inner surfaces of the shell 24 and the six outer surfaces of the spinning box 4. The top center and the bottom center of the hexahedral heating and heat preservation cavity 26 are respectively provided with an oil outlet pipe joint 27 and an oil inlet pipe joint 28 that pass through the heat insulation layer 25. The lower end of the oil outlet pipe joint 27 is provided with a plurality of upper guide baffles 29 at the top of the hexahedral heating and heat preservation cavity 26 and radiates to the surrounding areas. The upper end of the oil inlet pipe joint 28 is provided with a plurality of upper guide baffles 29. A number of lower guide baffles are provided at the bottom of the hexahedral heating and insulation chamber 26 radiating outward. The number of upper guide baffles 29 and lower guide baffles is equal and corresponds to each other. The outer ends of the upper guide baffles 29 and lower guide baffles corresponding to each other are connected by a vertical guide baffle 31 located on the side of the hexahedral heating and insulation chamber 26. The outer sides of the upper guide baffles 29, lower guide baffles and vertical guide baffles 31 are all connected to the inner wall of the shell 24, and the inner sides of the upper guide baffles 29, lower guide baffles and vertical guide baffles 31 are all connected to the outer wall of the spinning box 4.

[0028] The reflux tank 2 is located above the spinning box 4. A lower liquid level sensor 32 is provided at the lower part of the reflux tank 2, and an upper liquid level sensor 33 is provided at the upper part of the reflux tank 2. The signal output ends of the temperature sensor 23, the lower liquid level sensor 32 and the upper liquid level sensor 33 are connected to a PLC controller (not shown in the figure). The signal output ends of the PLC controller are respectively connected to the switch of the electric heating coil 20 and the control of the oil pump 3.

[0029] The oil inlet pipeline 5 is provided with a flow regulating valve 30 and an oil inlet hose 34 , and the oil return pipeline 7 is provided with an oil return hose 35 .

[0030] The specific working process of the utility model is as follows: after the heat-conducting oil is heated to the set temperature in the oil liquid heating tank 1 through the electric heating coil pipe 20, the heat-conducting oil enters the hexahedral heating and heat preservation cavity 26 between the shell 24 and the spinning beam 4 through the oil inlet pipeline 5 by gravity, the heat-conducting oil flows from bottom to top in the hexahedral heating and heat preservation cavity 26, the heat-conducting oil heats and preserves the melt in the spinning beam 4, and finally the heat-conducting oil is discharged into the reflux tank 2 through the oil outlet pipeline 6, the liquid level of the heat-conducting oil rises in the reflux tank 2, when the upper liquid level sensor 33 detects the liquid level of the heat-conducting oil, the upper liquid level sensor 33 sends a signal that the liquid level has reached the upper limit to the PLC controller, the PLC controller sends a starting signal to the oil pump 3, the oil pump 3 starts, the heat-conducting oil in the reflux tank 2 is pumped out and is transported into the oil liquid heating tank 1 through the oil return pipeline 7, along with the pumping of the oil pump 3, the liquid level of the heat-conducting oil in the reflux tank 2 falls, when the lower liquid level sensor 32 detects the liquid level of the heat-conducting oil, the lower liquid level sensor 32 sends a signal that the liquid level has fallen to the lower limit to the PLC controller, the PLC controller sends a closing signal to the oil pump 3, and the oil pump 3 is closed. According to the above working process, the heat-conducting oil in the oil liquid heating tank 1 is continuously injected into the spinning beam 4 to heat and preserve the melt in the spinning beam 4, the heat-exchanged heat-conducting oil flows into the reflux tank 2, and then the heat-conducting oil is returned to the oil liquid heating tank 1 through the intermittently operated oil pump 3.

[0031] When it is necessary to adjust the flow rate of the heat-conducting oil in the hexahedral heating and heat preservation cavity 26 outside the spinning beam 4, the oil liquid heating tank 1 can be lifted upward or dropped downward through the operation of the hand chain block 8, that is, the height difference between the liquid level in the oil liquid heating tank 1 and the reflux tank 2 is increased or decreased. The flow rate of the heat-conducting oil automatically injected into the hexahedral heating and heat preservation cavity 26 can be further adjusted through the flow rate adjusting valve 30, and the flow rate adjusting valve 30 can also be closed or discharge the heat-conducting oil in the oil liquid heating tank 1 during maintenance. In order to reduce heat loss, heat insulation cotton is arranged outside the oil liquid heating tank 1, outside the reflux tank 2 and outside each pipeline, so that the heating cost of the heat-conducting oil is reduced.

[0032] It needs to be emphasized that the PLC controller, the oil pump 3, the safety valve 21, the hand chain block 8, the upper liquid level sensor 33, the lower liquid level sensor 32, the electric heating coil pipe 20 and the temperature sensor 23 in the utility model are all prior art and can be purchased in the market. The automatic control realized through the PLC controller in the utility model is a conventional technology and does not involve a new computer program.

[0033] The above embodiment illustrates the basic principle and characteristics of the utility model, but the above only illustrates the relatively optimal embodiment of the utility model and is not limited by the described embodiment. Those skilled in the art can make many forms of deformation and improvement under the inspiration of the patent without departing from the scope of the utility model and the protection scope of the claims, and these all belong to the protection scope of the utility model. Therefore, the patent and the protection scope of the utility model should be subject to the appended claims.

Claims

1. Heat preservation circulating oil supply system for fiber spinning box, characterized by: It includes a height adjustment device, an oil heating tank, a heat exchange insulation guide structure, a reflux tank and an oil pump. The oil heating tank is arranged on the height adjustment device, the heat exchange insulation guide structure is arranged outside the spinning box, the lower end of the oil heating tank is connected to the bottom of the heat exchange insulation guide structure through an oil inlet pipeline, the top of the heat exchange insulation guide structure is connected to the bottom of the reflux tank through an oil outlet pipeline, the oil pump is arranged at the bottom of the reflux tank, and the oil pump is connected to the upper part of the oil heating tank through a return oil pipeline.

2. The heat preservation circulating oil supply system for a hair fiber spinning box according to claim 1, characterized in that: The height adjustment device includes a hand hoist and four vertically arranged channel steel slides. The hand hoist is hung on the workshop roof beam. The four channel steel slides are arranged in a circular array with the hand hoist as the center. A connecting plate is fixed to the upper end of each channel steel slide. The connecting plate is fixed to the bottom of the workshop roof beam by bolts. The top of the oil heating tank is connected to the hand hoist through a lifting rope. The outer circle of the oil heating tank is provided with a guide wheel that rolls along the channel steel slide. An anti-fall buffer device is provided between the lower ends of the four channel steel slides.

3. The heat preservation circulating oil supply system for a hair fiber spinning box according to claim 2, characterized in that: The anti-fall buffer device includes a sleeve for passing through the oil inlet pipeline, the center line of the sleeve coincides with the center line of the oil heating tank, the lower end of each channel steel slide is connected to the outer circle of the sleeve through a first cross bar, the outer ends of two adjacent first cross bars are connected by a second cross bar, and the middle of each second cross bar is connected to the intersection of the outer circle of the sleeve and the inner side of the first cross bar through a third cross bar. Several spring seats are fixed on the top of the first cross bar, the second cross bar and the third cross bar, and each spring seat is provided with a spring. The bottom of the oil heating tank is a conical structure, and the height of the spring gradually shortens from the outside to the inside to adapt to the conical structure.

4. The heat-insulating circulating oil supply system for a hair fiber spinning box according to claim 2 or 3, characterized in that: An electric heating coil is provided in the oil heating tank, a safety valve and an oil filling port are provided on the top of the oil heating tank, an oil cover is provided at the oil filling port, and a temperature sensor is provided on the side of the oil heating tank.

5. The heat preservation circulating oil supply system for a hair fiber spinning box according to claim 4, characterized in that: The heat exchange insulation and flow guiding structure includes a shell arranged outside the spinning box, a heat insulation layer is arranged outside the shell, and a hexahedral heating and heat preservation cavity is provided between the six inner walls of the shell and the six outer walls of the spinning box respectively. The top center and the bottom center of the hexahedral heating and heat preservation cavity are respectively provided with an oil outlet pipe joint and an oil inlet pipe joint that pass through the heat insulation layer. The lower port of the oil outlet pipe joint is provided with a plurality of upper flow guiding baffles radiating to the surrounding areas at the top of the hexahedral heating and heat preservation cavity. The upper port of the oil inlet pipe joint is provided at the top of the hexahedral heating and heat preservation cavity. A number of lower guide baffles are provided at the bottom of the hexahedral heating and insulation chamber radiating outward. The number of upper guide baffles and lower guide baffles is equal and corresponds to each other. The outer ends of the upper and lower corresponding guide baffles are connected by a vertical guide baffle located on the side of the hexahedral heating and insulation chamber. The outer sides of the upper guide baffles, lower guide baffles and vertical guide baffles are all connected to the inner wall of the shell, and the inner sides of the upper guide baffles, lower guide baffles and vertical guide baffles are all connected to the outer wall of the spinning box.

6. The heat preservation circulating oil supply system for a hair fiber spinning box according to claim 5, characterized in that: The reflux tank is located above the spinning box. A lower liquid level sensor is provided at the lower part of the reflux tank, and an upper liquid level sensor is provided at the upper part of the reflux tank. The signal output ends of the temperature sensor, the lower liquid level sensor and the upper liquid level sensor are connected to the PLC controller. The signal output ends of the PLC controller are respectively connected to the switch of the electric heating coil and the oil pump control.

7. The heat preservation circulating oil supply system for a hair fiber spinning box according to claim 5, characterized in that: The oil inlet pipeline is provided with a flow regulating valve and an oil inlet hose, and the oil return pipeline is provided with an oil return hose.

Images