Feed preheating device of molecular distiller

Abstract

The utility model discloses a feed preheating device of a molecular distiller, which relates to the technical field of molecular distillers and comprises a feed pipe, heat supply pipes and return pipes are arranged on the front side and the rear side of the feed pipe, the two heat supply pipes are communicated through a communicating pipe A, the two return pipes are communicated through a communicating pipe B. A spiral heat pipe A is arranged on the inner side of the feed pipe, and a spiral heat pipe B is arranged on the outer side of the feed pipe. A spiral heat pipe B is arranged in a spiral gap of the spiral heat pipe A. An end disc is arranged on the inner side of the feeding pipe. According to the feed preheating device of the molecular distiller, provided by the utility model, the thermal induction controller, the arc-shaped through groove and the through hole are matched for use, so that cooled fluid in the spiral heat pipe A enters the front backflow pipe through the front cavity and the front auxiliary through pipe for backflow; the heat supply pipe at the rear portion fills new fluid with the high temperature into the spiral heat pipe B through the auxiliary through pipe at the rear portion, so that the spiral heat pipe B effectively preheats raw materials in the feeding pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of molecular distillers, in particular to a feed preheating device for a molecular distiller. Background Art

[0002] Molecular distillation is also called short-path distillation. It is a relatively new liquid-liquid separation technology that has not yet been widely used in industrial production. Molecular distillation is also called short-path distillation. A complete set of molecular distillation equipment mainly includes: molecular evaporator, degassing system, feeding system, heating system, cooling vacuum system and control system, etc. In specific applications, molecular distillation equipment is used to connect the feed pipe and the heavy component buffer tank.

[0003] In order to save energy and recycle heat energy, there is a structure in the prior art that can collect the heat of the heavy component buffer tank through a heat-conducting medium and use this heat to preheat the feed pipe. The heat-conducting medium is generally preheated and absorbed by the flowing material, and then drained to the feed part through a pipeline. The cooled fluid then flows back to the heat dissipation part to preheat the feed structure. However, the existing preheating device has a relatively single path. The fluid flows into the preheating device and flows out from the other end. As the fluid movement path increases, the heat is gradually dissipated. If the initial temperature of the raw material is low, the preheating effect of the fluid after moving a longer path will be greatly reduced. Therefore, a feed preheating device for a molecular distillation device is proposed. Utility Model Content

[0004] In view of the above-mentioned existing preheating device, the path is relatively single, the fluid flows into the preheating device and flows out from the other end. As the fluid movement path increases, heat is gradually dissipated. If the initial temperature of the raw material is low, the preheating effect of the fluid after moving a longer path will be greatly reduced. The present utility model is proposed.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a feed preheating device for a molecular distiller, comprising a feed pipe, a heating pipe and a reflux pipe are arranged on both the front and rear sides of the feed pipe, the two heating pipes are connected through a connecting pipe A, and the two reflux pipes are connected through a connecting pipe B. A spiral heat pipe A is arranged on the inner side of the feed pipe, a spiral heat pipe B is arranged in the spiral gap of the spiral heat pipe A, an end plate is arranged on the inner side of the feed pipe, the spiral inner end of the spiral heat pipe A and the spiral inner end of the spiral heat pipe B are fixedly penetrated through the left side of the end plate, the outer end of the spiral heat pipe A is fixedly penetrated through the front inner wall of the feed pipe and then connected with the heating pipe located in the front, the outer end of the spiral heat pipe B is fixedly penetrated through the rear inner wall of the feed pipe and then connected with the reflux pipe located in the rear, and the right end of the end plate is rotatably sleeved with An adjusting disk, a double through-bend hole is provided on the left side of the adjusting disk, cavities are provided inside the adjusting disk and on both sides of the double through-bend hole, a through hole is provided on the left side of the cavity, and two arc-shaped through grooves are provided on the outer ring surface of the adjusting disk, an outer disk is rotatably sleeved on the outer surface of the adjusting disk, and two auxiliary through-tubes are fixedly inserted on the outer surface of the outer disk, and the other end of the auxiliary through-tubes is fixedly penetrated through the inner wall of the feed pipe, and the ends of the two auxiliary through-tubes away from each other are respectively connected to the return pipe in the front and the heating pipe in the rear, a power structure is provided on the right side of the adjusting disk, the power structure is connected to the feed pipe, a thermal sensing controller is fixedly installed on the upper surface of the feed pipe, and the thermal sensing controller contacts the inner end of the spiral heat pipe B after extending into the feed pipe, and the end of the thermal sensing controller located outside the feed pipe is connected to the power structure.

[0006] Preferably, the power structure includes a power telescopic rod and a control frame, the control frame is located above the feed pipe, the upper end of the power telescopic rod is connected to the control frame, the lower end of the power telescopic rod is fixedly connected to the upper surface of the feed pipe, the right side of the adjusting disk is fixedly connected to a gear, a tooth plate is provided in front of the gear, the upper surface of the tooth plate is fixedly connected to a rib-penetrating rod, and the upper end of the rib-penetrating rod slides through the inner wall of the feed pipe and then is fixedly connected to the control frame.

[0007] Preferably, both upper and lower ends of the tooth plate are arc-shaped, and the number of teeth on the tooth plate is one-fourth of the number of teeth on the gear.

[0008] Preferably, the spiral axes of the spiral heat pipe A and the spiral heat pipe B are coaxially arranged, and the spiral axis of the spiral heat pipe A is coaxially arranged with the axis of the regulating disk.

[0009] Preferably, both ends of the double-bend holes are distributed in a circular array with respect to the axis of the adjusting disk, and the distance between both ends of the double-bend holes and the axis of the adjusting disk is equal to the distance between the through holes and the axis of the adjusting disk.

[0010] Preferably, the arc angle of the arc-shaped through groove is greater than 90 degrees and less than 180 degrees, the two arc-shaped through grooves are respectively connected to the two cavities, and the two arc-shaped through grooves are distributed in an array around the axis of the adjustment disk.

[0011] Preferably, the right sides of the spiral heat pipe A and the spiral heat pipe B are each provided with a plurality of material passing holes, and the interiors of the material passing holes are not connected to the interiors of the spiral heat pipe A and the spiral heat pipe B.

[0012] Beneficial effects of the utility model:

[0013] 1. By setting up the cooperation of the thermal induction controller, the arc-shaped through groove and the through hole, when the initial temperature of the raw material passing through is low, the thermal induction controller controls the power structure to drive the adjustment disk to rotate 90 degrees, and then the two through holes are respectively connected with the spiral heat pipe A and the spiral heat pipe B. The fluid after cooling in the spiral heat pipe A enters the front reflux pipe through the front cavity and the front auxiliary through pipe for reflux, and the rear heating pipe is filled with new higher temperature fluid into the spiral heat pipe B through the rear auxiliary through pipe, so that the spiral heat pipe B can effectively preheat the raw material in the feed pipe.

[0014] 2. By setting the material through holes, when the raw materials flow through the spiral heat pipe A and the spiral heat pipe B in the feed pipe, the raw materials pass through the gap between the spiral heat pipe A and the spiral heat pipe B and the material through holes, thereby increasing the preheating effect of the high-temperature fluid inside the spiral heat pipe A and the spiral heat pipe B on the raw materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a right side structural schematic diagram of the utility model;

[0018] Figure 3 This is a schematic diagram of the connection between the thermal induction controller and the feed pipe of the utility model;

[0019] Figure 4 It is a schematic diagram of the partial structure of the utility model;

[0020] Figure 5 This is a schematic diagram of the material passage hole structure of the utility model.

[0021] Description of reference numerals:

[0022] 1. Feed pipe; 2. Reflux pipe; 3. Heating pipe; 4. Connecting pipe A; 5. Connecting pipe B; 6. Spiral heat pipe A; 7. End plate; 8. Spiral heat pipe B; 9. Power structure; 901. Power telescopic rod; 902. Control frame; 903. Gear; 904. Tooth plate; 905. Ridge rod; 10. Double-bend hole; 11. Through hole; 12. Arc-shaped through groove; 13. Auxiliary through pipe; 14. Cavity; 15. Thermal induction controller; 16. Adjustment plate; 17. Feed hole; 18. Outer plate. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0024] Reference Figure 1-5 , is an embodiment of the utility model, which provides a feed preheating device for a molecular distiller, the feed preheating device for the molecular distiller comprises a feed pipe 1, a heat supply pipe 3 and a reflux pipe 2 are arranged on both the front and rear sides of the feed pipe 1, the fluid after absorbing heat flows in the heat supply pipe 3, the fluid after cooling flows into the reflux pipe 2, and then flows to the heat absorption position again to absorb heat, the two heat supply pipes 3 are connected by a connecting pipe A4, the two reflux pipes 2 are connected by a connecting pipe B5, a spiral heat pipe A6 is arranged on the inner side of the feed pipe 1, a spiral heat pipe B8 is arranged in the spiral gap of the spiral heat pipe A6, and a heat pipe B8 can be arranged in the feed pipe 1 during use. A plurality of spiral heat pipes A6 and spiral heat pipes B8 are installed to preheat raw materials at different positions of the feed pipe 1 at the same time. An end plate 7 is provided on the inner side of the feed pipe 1, and the end plate 7 is located on the right side of the spiral heat pipe A6 and the spiral heat pipe B8. A plurality of material passing holes 17 are provided on the right side surfaces of the spiral heat pipe A6 and the spiral heat pipe B8. The interior of the material passing holes 17 is not connected with the interior of the spiral heat pipe A6 and the spiral heat pipe B8. When the raw materials in the feed pipe 1 flow, they flow through the gap between the spiral heat pipe A6 and the spiral heat pipe B8 and the material passing holes 17, thereby increasing the contact area between the raw materials and the spiral heat pipe A6 and the spiral heat pipe B8 and improving the preheating effect.

[0025] The spiral inner end of the spiral heat pipe A6 and the spiral inner end of the spiral heat pipe B8 are fixedly passed through the left side of the end plate 7, the outer end of the spiral heat pipe A6 is fixedly passed through the front inner wall of the feed pipe 1 and is connected to the heat supply pipe 3 located in the front, the outer end of the spiral heat pipe B8 is fixedly passed through the rear inner wall of the feed pipe 1 and is connected to the return pipe 2 located in the rear, the right end of the end plate 7 is rotatably sleeved with an adjusting plate 16, the spiral axes of the spiral heat pipes A6 and B8 are coaxially arranged, the spiral axis of the spiral heat pipe A6 is coaxially arranged with the axis of the adjusting plate 16, a double-bend hole 10 is provided on the left side of the adjusting plate 16, cavities 14 are provided inside the adjusting plate 16 and on both sides of the double-bend hole 10, a through hole 11 is provided on the left side of the cavity 14, the two ends of the double-bend hole 10 are arranged in a circular array with the axis of the adjusting plate 16, the distance between the two ends of the double-bend hole 10 and the axis of the adjusting plate 16 is equal to the distance between the through hole 11 and the axis of the adjusting plate 16, The two double-bend holes 10 can be connected to the spiral heat pipe A6 and the spiral heat pipe B8 respectively. After the adjusting disk 16 rotates 90 degrees, the spiral heat pipe A6 and the spiral heat pipe B8 are connected to the two through holes 11 respectively. The outer ring surface of the adjusting disk 16 is provided with two arc-shaped through grooves 12. The two arc-shaped through grooves 12 are connected to the two cavities 14 respectively. The arc angle of the arc-shaped through grooves 12 is greater than 90 degrees and less than 180 degrees. The two arc-shaped through grooves 12 are distributed in a circular array around the axis of the adjusting disk 16. The outer surface of the adjusting disk 16 is rotatably sleeved with an outer disk 18. Two auxiliary through pipes 13 are fixedly inserted on the outer surface of the outer disk 18. After the adjusting disk 16 rotates 90 degrees, the auxiliary through pipes 13 can also be connected to the corresponding cavity 14 through the arc-shaped through grooves 12. The other end of the auxiliary through pipe 13 is fixedly penetrated through the inner wall of the feed pipe 1. The ends of the two auxiliary through pipes 13 away from each other are respectively connected to the return pipe 2 located in the front and the heating pipe 3 located in the rear.

[0026] A power structure 9 is provided on the right side of the adjusting disk 16, and the power structure 9 is connected to the feeding pipe 1. A thermal sensing controller 15 is fixedly installed on the upper surface of the feeding pipe 1. After the thermal sensing controller 15 extends into the feeding pipe 1, it contacts the inner end of the spiral heat pipe B8. The end of the thermal sensing controller 15 located outside the feeding pipe 1 is connected to the power structure 9. The power structure 9 includes a power telescopic rod 901 and a control frame 902. The control frame 902 is located above the feeding pipe 1. The upper end of the power telescopic rod 901 is connected to the control frame 902, and the lower end of the power telescopic rod 901 is fixedly connected to the upper surface of the feeding pipe 1. A gear 903 is fixedly connected to the right side of the adjusting disk 16, and a tooth plate 904 is provided in front of the gear 903. The upper and lower ends of the tooth plate 904 are arc-shaped to ensure that the tooth plate 904 and the gear 903 will not be out of mesh. The number of teeth of the tooth plate 904 is gear The number of teeth of the wheel 903 is one-fourth, ensuring that after the tooth plate 904 is engaged with the gear 903, the maximum rotation angle of the gear 903 is 90 degrees. The upper surface of the tooth plate 904 is fixedly connected with a rib-penetrating rod 905, and the upper end of the rib-penetrating rod 905 slides through the inner wall of the feed pipe 1 and is fixedly connected to the control frame 902. The thermal sensing controller 15 controls the extension and retraction of the power telescopic rod 901 by sensing the temperature of the fluid flowing from the spiral heat pipe A6 into the spiral heat pipe B8. When the thermal sensing controller 15 senses that the temperature of the fluid in the spiral heat pipe B8 is low, the power telescopic rod 901 is controlled to drive the tooth plate 904 to move upward, so that the tooth plate 904 drives the adjustment disk 16 to rotate 90 degrees by engaging with the gear 903, so that the two through holes 11 are connected to the spiral heat pipe A6 and the spiral heat pipe B8 respectively, and the new high-temperature medium is introduced into the spiral heat pipe B8 to preheat the raw materials.

[0027] During use, when the initial temperature of the raw material passing through is high, the double-pass bend hole 10 connects the spiral heat pipe A6 with the spiral heat pipe B8, so that the fluid enters the spiral heat pipe A6 through the double-pass bend hole 10 and enters the spiral heat pipe B8, and then flows out from the rear end of the spiral heat pipe B8. When the initial temperature of the raw material passing through is low, the thermal sensing controller 15 controls the power structure 9 to drive the adjustment disk 16 to rotate 90 degrees, and then the two through holes 11 are connected to the spiral heat pipe A6 and the spiral heat pipe B8 respectively, and the fluid in the spiral heat pipe A6 after cooling passes through the front The square cavity 14 and the front auxiliary through-pipe 13 enter the front reflux pipe 2 for reflux, and the rear heat supply pipe 3 fills new higher temperature fluid into the spiral heat pipe B8 through the rear auxiliary through-pipe 13, so that the spiral heat pipe B8 can effectively preheat the raw materials in the feed pipe 1. When the raw materials flow through the spiral heat pipe A6 and the spiral heat pipe B8 in the feed pipe 1, the raw materials pass through the gap between the spiral heat pipe A6 and the spiral heat pipe B8 and the material through-hole 17, thereby increasing the contact area between the raw materials and the spiral heat pipe A6 and the spiral heat pipe B8.

[0028] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A feed preheating device for a molecular distiller, comprising a feed pipe (1), characterized in that: A heating pipe (3) and a return pipe (2) are arranged on both the front and rear sides of the feed pipe (1); the two heating pipes (3) are connected via a connecting pipe A (4); the two return pipes (2) are connected via a connecting pipe B (5); a spiral heat pipe A (6) is arranged on the inner side of the feed pipe (1); a spiral heat pipe B (8) is arranged in the spiral gap of the spiral heat pipe A (6); an end plate (7) is arranged on the inner side of the feed pipe (1); the spiral inner ends of the spiral heat pipe A (6) and the spiral inner ends of the spiral heat pipe B (8) are fixedly passed through the left side of the end plate (7); the outer end of the spiral heat pipe A (6) is fixedly passed through the front inner wall of the feed pipe (1) and then connected to the heating pipe (3) located in the front; the outer end of the spiral heat pipe B (8) is fixedly passed through the rear inner wall of the feed pipe (1) and then connected to the rear inner wall of the feed pipe (1); The right end of the end plate (7) is rotatably sleeved with an adjusting plate (16), a left side surface of the adjusting plate (16) is provided with double-bend holes (10), a cavity (14) is provided inside the adjusting plate (16) and on both sides of the double-bend holes (10), a through hole (11) is provided on the left side surface of the cavity (14), an outer ring surface of the adjusting plate (16) is provided with two arc-shaped through grooves (12), an outer plate (18) is rotatably sleeved on the outer surface of the adjusting plate (16), two auxiliary through pipes (13) are fixedly inserted on the outer surface of the outer plate (18), the other end of the auxiliary through pipes (13) is fixedly inserted through the inner wall of the feed pipe (1), and the ends of the two auxiliary through pipes (13) that are away from each other are respectively connected to the reflux pipe (2) located in the front and the heating pipe (3) located in the rear.

2. The feed preheating device of a molecular distillation apparatus according to claim 1, characterized in that: A power structure (9) is provided on the right side of the regulating disk (16), the power structure (9) being connected to the feed pipe (1), a thermal induction controller (15) being fixedly mounted on the upper surface of the feed pipe (1), the thermal induction controller (15) being inserted into the feed pipe (1) and contacting the inner end of the spiral heat pipe B (8), and one end of the thermal induction controller (15) located outside the feed pipe (1) being connected to the power structure (9).

3. A feed preheating device for a molecular distillation apparatus according to claim 2, characterized in that: The power structure (9) comprises a power telescopic rod (901) and a control frame (902), wherein the control frame (902) is located above the feed pipe (1), the upper end of the power telescopic rod (901) is connected to the control frame (902), the lower end of the power telescopic rod (901) is fixedly connected to the upper surface of the feed pipe (1), a gear (903) is fixedly connected to the right side of the adjustment disk (16), a tooth plate (904) is provided in front of the gear (903), an edge-penetrating rod (905) is fixedly connected to the upper surface of the tooth plate (904), and the upper end of the edge-penetrating rod (905) slides through the inner wall of the feed pipe (1) and is fixedly connected to the control frame (902).

4. A feed preheating device for a molecular distillation apparatus according to claim 3, characterized in that: The upper and lower ends of the tooth plate (904) are both arc-shaped, and the number of teeth of the tooth plate (904) is one quarter of the number of teeth of the gear (903).

5. The feed preheating device for a molecular distillation apparatus according to claim 1, characterized in that: The spiral axes of the spiral heat pipe A (6) and the spiral heat pipe B (8) are coaxially arranged, and the spiral axis of the spiral heat pipe A (6) is coaxially arranged with the axis of the adjustment disk (16).

6. The feed preheating device for a molecular distillation apparatus according to claim 1, characterized in that: The two ends of the double-through curved holes (10) are arranged in a circular array with respect to the axis of the adjusting disk (16), and the distance between the two ends of the double-through curved holes (10) and the axis of the adjusting disk (16) is equal to the distance between the through hole (11) and the axis of the adjusting disk (16).

7. The feed preheating device for a molecular distillation apparatus according to claim 1, characterized in that: The arc angle of the arc-shaped through groove (12) is greater than 90 degrees and less than 180 degrees, the two arc-shaped through grooves (12) are respectively connected to the two cavities (14), and the two arc-shaped through grooves (12) are distributed in an array around the axis of the adjustment disk (16).

8. The feed preheating device for a molecular distillation apparatus according to claim 1, characterized in that: The right sides of the spiral heat pipe A (6) and the spiral heat pipe B (8) are both provided with a plurality of material passing holes (17), and the interior of the material passing holes (17) is not connected to the interior of the spiral heat pipe A (6) and the spiral heat pipe B (8).

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