Liquid heat exchange heating device based on spiral and inner cylinder structure

Abstract

The invention discloses a liquid heat exchange heating device based on a spiral and inner cylinder structure, and relates to the technical field of heat exchange equipment, the liquid heat exchange heating device comprises a heating cylinder, and the outer side of the heating cylinder is fixedly sleeved with an outer heating ring; according to the invention, a plurality of vertically distributed dividing pieces I are arranged on the spiral guide vane and a plurality of dividing pieces II parallel to the spiral guide vane are arranged at the end part of the outer side of the inner barrel, so that flowing liquid raw materials are finely divided transversely and vertically, and the flowing state of the liquid raw materials is disturbed, so that the fluid generates stronger turbulent flow; the heat exchange between the liquid raw material and the heating component (the outer heating ring and the inner cylinder) is enhanced, so that the liquid raw material has more sufficient opportunities to exchange heat with the heating component, more sufficient and uniform initial heating is realized, the liquid raw material can reach the required heating temperature through further heating of the inner cylinder, the heating effect is improved, and the energy consumption is reduced. And the heating uniformity and efficiency are improved.

Description

Technical Field

[0001] The invention relates to the technical field of heat exchange equipment, and in particular to a liquid heat exchange heating device based on a spiral and inner cylinder structure. Background Art

[0002] In chemical production, such as the preparation of anhydride curing agents, accurate and efficient liquid heating is crucial. Chemical reactions must be carried out under specific temperature conditions. The appropriate temperature can accelerate the reaction, improve efficiency and ensure stable product quality.

[0003] The current liquid heat exchange heating device has been found to have at least the following technical problems:

[0004] First, conventional liquid heat exchange heating devices mostly use a simple straight channel structure for liquid heating, which makes the flow path of the liquid in the channel relatively single, the flow state of the fluid close to laminar flow, and the contact with the heating component is not sufficient, resulting in low heat exchange efficiency.

[0005] Second, traditional liquid heat exchange heating devices are cumbersome in terms of raw material addition, circulation heating and component connection operations, which increases labor costs and the risk of errors, and it is difficult to meet the chemical production requirements for heat exchange equipment in terms of operational convenience and reliability. Summary of the invention

[0006] 1. Technical issues to be resolved

[0007] In view of the deficiencies in the prior art, the present invention provides a liquid heat exchange heating device based on a spiral and inner cylinder structure to solve the above-mentioned technical problems.

[0008] (II) Technical solution

[0009] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0010] A liquid heat exchange heating device based on a spiral and inner cylinder structure comprises a heating cylinder, an outer heating ring is fixedly sleeved on the outer side of the heating cylinder, an inner cylinder is fixedly installed in the inner cavity of the heating cylinder, heating wires are arranged inside the outer heating ring and the inner cylinder, a spiral guide blade is fixedly sleeved on the outer side of the inner cylinder, the spiral guide blade is fixedly connected to the inner wall of the heating cylinder, a plurality of spiral channels are formed between the spiral guide blade and the outer end of the inner cylinder, a plurality of split pieces are fixedly installed on the spiral guide blade, and each of the split pieces is respectively arranged along the spiral The spiral trajectory of the guide blade is distributed in the spiral channel, and a plurality of split pieces 2 are fixedly installed at the outer end of the inner cylinder, and each of the split pieces 2 is distributed in the spiral channel along the spiral trajectory of the spiral guide blade. A C-ring is fixedly installed at the bottom end of the inner cylinder, and the C-ring is fixedly connected to the bottom surface of the inner wall of the heating cylinder, and the upper end of the inner cylinder is fixedly connected to the upper wall of the heating cylinder. A raw material liquid inlet pipe is fixedly installed on the upper end of the heating cylinder, and a stopper is fixedly connected to the head of the upper end of the spiral guide blade, and the stopper is fixedly connected to the side wall and the upper wall of the heating cylinder.

[0011] Preferably: each of the second segmentation pieces is arranged parallel to the spiral guide blades, each of the first segmentation pieces is arranged perpendicular to the spiral guide blades, a motor is fixedly installed in the middle of the upper end of the heating cylinder, the output shaft of the motor is fixedly connected to a stirring shaft, the stirring shaft is rotatably installed in the heating cylinder, a plurality of stirring blades are fixedly installed on the stirring shaft at equal intervals, a pump body is fixedly installed on the upper end of the heating cylinder, a liquid extraction pipe and a liquid discharge pipe are connected to the pump body, one end of the liquid extraction pipe is arranged on the bottom side of the inner cavity of the heating cylinder and is located at the opening of the C-ring.

[0012] Preferably: a connecting sleeve is fixedly sleeved on the drainage tube, a ring groove is opened on the side wall of the connecting sleeve, a fixing ring is rotatably arranged in the ring groove, an infusion tube is arranged above the heating cylinder, the infusion tube is of inverted U-shaped design, both ends of the infusion tube are respectively connected with the drainage tube and the raw material inlet tube, a sealing ring and a telescopic tube are respectively arranged at both ends of the infusion tube, one end of the infusion tube located at the sealing ring is inserted into the connecting sleeve and the drainage tube, and is fixedly connected with the fixing ring, the telescopic tube is movably sleeved on the other end of the infusion tube, and the telescopic tube is movably inserted into the raw material inlet tube.

[0013] Preferably: a baffle ring is provided above the telescopic tube, and the baffle ring is fixedly sleeved on the infusion tube, round rods are fixedly connected to both sides of the upper end of the telescopic tube, each of the round rods movably passes through the baffle ring, a spring is movably sleeved on each of the round rods, the telescopic tube is fixedly connected to the baffle ring through two round rods, the top of each round rod is fixedly connected to a limiting block, each of the limiting blocks is located at the upper end of the baffle ring, and the end of the telescopic tube is fixedly connected to a connecting block.

[0014] Preferably: an arc track is fixedly installed on the upper end of the heating cylinder, an arc slide groove is provided on the upper surface of the arc track, a sliding rod is slidably installed in the arc slide groove, the upper end of the sliding rod is fixedly connected to the infusion tube, a connecting rod is provided on one side of the sliding rod, the upper and lower ends of the connecting rod are respectively fixedly connected with a sliding column and a fixed column, the fixed column is movably inserted into the sliding rod, the sliding column movably passes through the sliding rod, the end of the sliding column is fixedly connected with a pressing plate, a spring 2 is movably sleeved on the sliding column, the pressing plate is fixedly connected to the sliding rod through the spring 2, a pushing block is fixedly connected to the connecting rod, the pushing block and the connecting block are both designed in the shape of a triangular block, and the inclined surface of the pushing block fits with the inclined surface of the connecting block.

[0015] Preferably: circular holes matching the fixed columns are provided on both sides of the outer surface of the arc track, and limiting members are fixedly connected on both sides of the outer end of the arc track, and each of the limiting members is respectively arranged at the circular hole to limit the moving distance of the fixed column, and three supporting legs are fixedly installed at equal intervals on the circumference of the bottom end of the heating cylinder, and a liquid outlet pipe is fixedly installed in the middle of the bottom end of the heating cylinder, and control valves are provided on the liquid outlet pipe and the liquid extraction pipe, and insulation layers are provided on the outer sides of the liquid extraction pipe, the liquid infusion pipe and the outer heating ring, and a temperature sensor is provided on the inner wall of the inner cylinder, and a control panel is provided on the outer end of the heating cylinder, and the temperature sensor and the heating wire are electrically connected to the control panel.

[0016] (III) Beneficial effects

[0017] 1: By providing a plurality of vertically distributed dividing pieces 1 on the spiral guide blades and a plurality of dividing pieces 2 arranged parallel to the spiral guide blades at the outer end of the inner cylinder, the flowing liquid raw material is finely divided horizontally and vertically, the flow state of the liquid raw material is disturbed, the fluid generates stronger turbulence, and the heat exchange between the liquid raw material and the heating component (external heating ring and inner cylinder) is enhanced, so that the liquid raw material has more sufficient opportunities to exchange heat with the heating component, thereby achieving more sufficient and uniform initial heating. Through further heating of the inner cylinder, it is ensured that the liquid raw material can reach the required heating temperature, the heating effect is improved, and the uniformity and efficiency of heating are improved.

[0018] Second: During the circulation process, the liquid raw material continuously flows through the spiral channel and the heating area of ​​the inner cylinder. Heat exchange will be carried out every time it passes through these areas. Due to the circulation of the liquid raw material, its temperature will continue to rise until it approaches the temperature of the heating component and finally reaches a thermal equilibrium state. The design of the circulating heating utilizes the continuous heat exchange and the continuous renewal of the liquid to ensure that the heat can be fully transferred to the liquid raw material. Each time the liquid raw material flows through the heating area, it will undergo the above-mentioned heat conduction and convection heat transfer process, so that heat is continuously transferred from the heating component to the liquid raw material, overcoming the temperature gradient in the heat exchange process, making the overall heating of the liquid raw material more uniform, reducing local temperature differences, and the circulating heating process can also allow the liquid raw material to make full use of the heat of the heating device and improve the heating efficiency.

[0019] 3. After the liquid raw material is circulated and heated, it enters the inner cylinder from the opening of the C-ring, and the motor is started to rotate the stirring shaft. The rotation of the stirring shaft drives the multiple stirring blades to rotate. The rotation of the multiple stirring blades stirs and mixes the liquid raw material in the inner cylinder, promotes heat transfer, enhances the heat exchange process, makes the temperature distribution more uniform, promotes the full integration of various components, improves product quality and performance stability, enhances fluidity, reduces local overheating, and improves heating efficiency.

[0020] Fourth: the movement of the pushing block will exert an upward force on the connecting block, causing the telescopic tube to slide upward and separate from the raw material liquid inlet tube. At this time, it is not blocked by the limit of the telescopic tube, so the slide bar can be pushed to drive the infusion tube to slide along the arc-shaped slide groove, so that the raw material liquid inlet tube is exposed. The connection and separation of the telescopic tube and the raw material liquid inlet tube can be accurately controlled to ensure accurate docking when circulation heating is required. When liquid raw materials need to be added, the raw material liquid inlet tube can be easily exposed, which is more convenient to use.

[0021] Five: An annular groove is opened on the inner wall of the connecting sleeve, and a fixed ring is rotatably set in the annular groove. The fixed ring is fixedly sleeved on the infusion tube, which limits the connection between the infusion tube and the connecting sleeve, ensuring that the infusion tube can rotate with the center of the circle of the connecting sleeve as the axis, while avoiding the separation of the infusion tube and the connecting sleeve. The setting of the sealing ring and the connecting sleeve seals the connection between the infusion tube and the discharge tube to avoid leakage of liquid raw materials.

[0022] Six: Multiple cycles enable the temperature sensor to more accurately monitor and feedback the actual temperature of the liquid, making it easier to adjust the power of the heating wire more effectively through the control panel to achieve precise temperature control. The arc-shaped slide groove is opened with the center of the connecting sleeve as the center point, so the infusion tube and the arc-shaped track will rotate with the center of the connecting sleeve as the axis, and there will be no motion interference. Round rods are fixedly installed on both sides of the upper end of the telescopic tube, and each round rod is movable through the retaining ring, which limits the movement of the telescopic tube, so that the telescopic tube can only move in the vertical direction, avoiding the displacement and misalignment of the position of the connecting block and the pushing block, ensuring that the pushing block can accurately push the connecting block to move, and ensuring the rationality of the structural design. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings.

[0024] Figure 1 This is the overall structural diagram of the liquid heat exchange heating device based on the spiral and inner cylinder structure of the present invention;

[0025] Figure 2 It is a structural diagram of the pump body of the present invention;

[0026] Figure 3 This is a cross-sectional structural diagram of the heating tube of the present invention;

[0027] Figure 4 This is a structural diagram of the second segmentation piece of the present invention;

[0028] Figure 5 It is a structural diagram of the inner cylinder of the present invention;

[0029] Figure 6 It is a structural diagram of the liquid extraction tube of the present invention;

[0030] Figure 7 is a structural diagram of the infusion tube of the present invention;

[0031] Figure 8 is a structural diagram of the slide bar of the present invention;

[0032] Fig. 9 It is a structural diagram of a cutaway connecting sleeve of the present invention;

[0033] Fig.10 It is a structural diagram of the inner cylinder cut away in the present invention;

[0034] Fig.11 For the present invention Figure 7 A magnified structural diagram.

[0035] Legend: 1. Heating cylinder; 11. External heating ring; 12. Inner cylinder; 13. Heating wire; 14. C-ring; 15. Raw material inlet pipe; 16. Liquid outlet pipe; 17. Support leg; 2. Spiral guide blade; 21. Spiral channel; 22. Block; 3. Split piece 1; 4. Split piece 2; 5. Motor; 51. Stirring shaft; 52. Stirring blade; 6. Pump body; 61. Liquid extraction pipe; 62. Liquid discharge pipe; 7. Infusion tube; 71, retaining ring; 72, telescopic tube; 73, round rod; 74, spring one; 75, limit block; 76, connecting block; 77, sealing ring; 8, connecting sleeve; 81, annular groove; 82, fixing ring; 9, arc track; 91, arc slide groove; 92, sliding rod; 93, connecting rod; 94, fixing column; 95, sliding column; 96, pressing plate; 97, spring two; 98, pushing block; 99, limit piece. DETAILED DESCRIPTION

[0036] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0037] Embodiment: Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 and Fig.11As shown, in order to solve the problems existing in the prior art, the present invention provides a liquid heat exchange heating device based on a spiral and inner cylinder structure, comprising a heating cylinder 1, an outer heating ring 11 is fixedly sleeved on the outer side of the heating cylinder 1, an inner cylinder 12 is fixedly installed in the inner cavity of the heating cylinder 1, heating wires 13 are arranged inside the outer heating ring 11 and the inner cylinder 12, a spiral guide blade 2 is fixedly sleeved on the outer side of the inner cylinder 12, the spiral guide blade 2 is fixedly connected to the inner wall of the heating cylinder 1, a plurality of spiral channels 21 are formed between the spiral guide blade 2 and the outer end of the inner cylinder 12, a plurality of split pieces 3 are fixedly installed on the spiral guide blade 2, each split piece 3 is respectively distributed at the spiral channel 21 along the spiral trajectory of the spiral guide blade 2, and the outer end of the inner cylinder 12 is fixedly installed A plurality of split pieces 2 4 are installed, each of which is distributed at the spiral channel 21 along the spiral trajectory of the spiral guide blade 2. A C-ring 14 is fixedly installed at the bottom end of the inner cylinder 12, and the C-ring 14 is fixedly connected to the bottom surface of the inner wall of the heating cylinder 1. The upper end of the inner cylinder 12 is fixedly connected to the upper wall of the heating cylinder 1. A raw material liquid inlet pipe 15 is fixedly installed at the upper end of the heating cylinder 1. A stopper 22 is fixedly connected to the head of the upper end of the spiral guide blade 2, and the stopper 22 is fixedly connected to the side wall and the upper wall of the heating cylinder 1. Each split piece 2 4 is arranged in parallel with the spiral guide blade 2, and each split piece 1 3 is arranged vertically with the spiral guide blade 2. A motor 5 is fixedly installed in the middle of the upper end of the heating cylinder 1, and the output shaft of the motor 5 is fixedly connected to the stirring shaft 51. The stirring The shaft 51 is rotatably installed in the heating cylinder 1, and a number of stirring blades 52 are fixedly installed on the stirring shaft 51 at equal intervals. A pump body 6 is fixedly installed on the upper end of the heating cylinder 1, and a liquid extraction tube 61 and a liquid discharge tube 62 are connected to the pump body 6. One end of the liquid extraction tube 61 is arranged at the bottom side of the inner cavity of the heating cylinder 1 and is located at the opening of the C-shaped ring 14. A connecting sleeve 8 is fixedly sleeved on the liquid discharge tube 62. An annular groove 81 is provided on the side wall of the connecting sleeve 8. A fixing ring 82 is rotatably arranged in the annular groove 81. An infusion tube 7 is arranged above the heating cylinder 1. The infusion tube 7 is an inverted U-shaped design. The two ends of the infusion tube 7 are respectively connected to the liquid discharge tube 62 and the raw material liquid inlet tube 15. The two ends of the infusion tube 7 are respectively provided with a sealing ring 77 and a telescopic tube 72. One end of the infusion tube 7 located at the sealing ring 77 is inserted into the connecting tube 62. The connecting sleeve 8 and the discharge pipe 62 are fixedly connected with the fixing ring 82. The telescopic tube 72 is movably sleeved on the other end of the infusion pipe 7. The telescopic tube 72 is movably inserted into the raw material inlet pipe 15. A baffle ring 71 is arranged above the telescopic tube 72. The baffle ring 71 is fixedly sleeved on the infusion pipe 7. Round rods 73 are fixedly connected to both sides of the upper end of the telescopic tube 72. Each round rod 73 movably passes through the baffle ring 71. A spring 74 is movably sleeved on each round rod 73. The telescopic tube 72 is fixedly connected to the baffle ring 71 through two round rods 73. The top of each round rod 73 is fixedly connected to a limiting block 75. Each limiting block 75 is located at the upper end of the baffle ring 71. The end of the telescopic tube 72 is fixedly connected to a connecting block 76. The upper end of the heating cylinder 1 is fixedly installed with an arc track 9.An arc-shaped slide groove 91 is provided on the upper surface of the arc track 9, and a slide bar 92 is slidably installed in the arc-shaped slide groove 91. The upper end of the slide bar 92 is fixedly connected to the infusion tube 7. A connecting rod 93 is provided on one side of the slide bar 92. The upper and lower ends of the connecting rod 93 are respectively fixedly connected with a slide column 95 and a fixed column 94. The fixed column 94 is movably inserted into the slide bar 92, and the slide column 95 movably penetrates the slide bar 92. The end of the slide column 95 is fixedly connected with a pressing plate 96. A spring 97 is movably sleeved on the slide column 95. The pressing plate 96 is fixedly connected to the slide bar 92 through the spring 97. A push block 98 is fixedly connected to the connecting rod 93. The push block 98 and the connecting block 76 are both designed in the shape of triangular blocks, and the inclined surface of the push block 98 is opposite to the inclined surface of the connecting block 76. Fitting, both sides of the outer surface of the arc track 9 are provided with circular holes adapted to the fixed column 94, both sides of the outer end of the arc track 9 are fixedly connected with limit members 99, each limit member 99 is respectively arranged at the circular hole, and is used to limit the moving distance of the fixed column 94, the bottom end of the heating cylinder 1 is equidistantly fixed with three support legs 17, the middle part of the bottom end of the heating cylinder 1 is fixedly installed with a liquid outlet pipe 16, the liquid outlet pipe 16 and the liquid extraction pipe 61 are provided with control valves, the liquid extraction pipe 61, the infusion pipe 7 and the outer heating ring 11 are provided with insulation layers, the inner wall of the inner cylinder 12 is provided with a temperature sensor, the outer end of the heating cylinder 1 is provided with a control panel, and the temperature sensor and the heating wire 13 are electrically connected to the control panel;,

[0038] The liquid raw material enters the spiral channel 21 through the raw material inlet pipe 15, flows along the spiral direction of the spiral guide blade 2, and the outer heating ring 11 and the heating wire 13 in the inner cylinder 12 preliminarily heat the flowing liquid raw material, and then reaches the bottom side of the inner cavity of the heating cylinder 1, and enters the inner cylinder 12 from the opening of the C-ring 14 to continue heating. The spiral guide blade 2 is provided with a plurality of vertically distributed dividing pieces 1 3, and the outer end of the inner cylinder 12 is provided with a plurality of dividing pieces 2 4 arranged parallel to the spiral guide blade 2, so that the flowing liquid raw material is horizontally and vertically precisely heated. Fine segmentation: the liquid raw material flows in the spiral channel 21, which prolongs the heating time and makes the initial heating more sufficient and uniform. The further heating of the inner cylinder 12 ensures that the liquid raw material can reach the required heating temperature and improves the heating effect. The horizontal and vertical segmentation structures effectively increase the flow turbulence of the liquid raw material, making it more fully contacted with the heating components (external heating ring 11 and inner cylinder 12), further improving the uniformity and efficiency of heating. The design of gradual heating and fine segmentation can accurately control the heating process and ensure the heating quality of the liquid raw material.

[0039] After the pump body 6 is started, the liquid raw material in the heating cylinder 1 will be sucked into the liquid extraction pipe 61, and then discharged through the liquid discharge pipe 62. The discharged liquid enters the liquid infusion pipe 7, and is finally discharged from the liquid infusion pipe 7 to the raw material liquid inlet pipe 15, completing a circulation loop. During the circulation process, the liquid raw material continuously flows through the spiral channel 21 and the heating area of ​​the inner cylinder 12. Heat exchange will be performed each time it passes through these areas. Due to the circulation of the liquid raw material, its temperature will continue to rise until it approaches the temperature of the heating component and finally reaches a thermal equilibrium state. The design of the cyclic heating utilizes the continuous heat exchange and the continuous renewal of the liquid to ensure that the heat can be fully transferred to the liquid raw material. Each time the liquid raw material flows through the heating area, it will experience the above-mentioned heat conduction and convection heat transfer process, so that the heat is continuously transferred from the heating component to the liquid raw material, overcoming the temperature gradient in the heat exchange process, making the overall heating of the liquid raw material more uniform, reducing local temperature differences, and the cyclic heating process can also allow the liquid raw material to fully utilize the heat of the heating device to improve the heating efficiency;

[0040] After the liquid raw material is circulated and heated, it enters the inner cylinder 12 from the opening of the C-ring 14, and the motor 5 is started to rotate the stirring shaft 51. The rotation of the stirring shaft 51 drives the plurality of stirring blades 52 to rotate. The plurality of stirring blades 52 rotate to stir and mix the liquid raw material in the inner cylinder 12, thereby promoting heat transfer, enhancing the heat exchange process, making the temperature distribution more uniform, promoting the full fusion of the various components, improving the product quality and performance stability, enhancing the fluidity, reducing local overheating, and improving the heating efficiency;

[0041] By pressing the pressing plate 96, the sliding column 95 is moved, and the movement of the sliding column 95 drives the connecting rod 93 to move, and the movement of the connecting rod 93 drives the fixed column 94 to separate from the circular hole on the arc track 9. At this time, the sliding rod 92 is not blocked by the fixed column 94, and the connecting rod 93 drives the pushing block 98 to move when moving. The movement of the pushing block 98 will exert an upward force on the connecting block 76, so that the telescopic tube 72 slides upward, so that the telescopic tube 72 is separated from the raw material liquid inlet pipe 15. At this time, it is not blocked by the telescopic tube 72. The sliding rod 92 can drive the infusion tube 7 to slide along the arc chute 91, so that the raw material liquid inlet pipe 15 is exposed. The connection and separation of the telescopic tube 72 and the raw material liquid inlet pipe 15 can be accurately controlled to ensure accurate docking when cyclic heating is required. When liquid raw materials need to be added, the raw material liquid inlet pipe 15 can be easily exposed, which is more convenient to use.

[0042] When one end of the liquid infusion tube 7 is aligned with the raw material liquid inlet tube 15, the pressing plate 96 is released, and the connecting rod 93 and the pushing block 98 are reset by the reset action of the spring 2 97. At this time, the pushing block 98 no longer applies force to the connecting block 76, and the reset action of the spring 1 74 is used to reset the telescopic tube 72, so that the telescopic tube 72 is inserted into the raw material liquid inlet tube 15, ensuring the tight and accurate connection between the telescopic tube 72 and the raw material liquid inlet tube 15, avoiding the problems of liquid leakage and unstable connection, and ensuring the liquid heating device The normal operation and safety of the device are ensured by opening an annular groove 81 on the inner wall of the connecting sleeve 8, and the fixing ring 82 is rotatably arranged in the annular groove 81. The fixing ring 82 is fixedly sleeved on the infusion tube 7, which plays a limiting role in the connection between the infusion tube 7 and the connecting sleeve 8, ensuring that the infusion tube 7 can rotate with the center of the circle of the connecting sleeve 8 as the axis, while preventing the infusion tube 7 from being separated from the connecting sleeve 8, and the setting of the sealing ring 77 and the connecting sleeve 8 plays a sealing role in the connection between the infusion tube 7 and the drainage tube 62, thereby preventing the leakage of the liquid raw material;

[0043] Multiple cycles enable the temperature sensor (not shown) to more accurately monitor and feedback the actual temperature of the liquid, making it easier to more effectively adjust the power of the heating wire 13 through the control panel (not shown) to achieve precise temperature control. The arc-shaped slide groove 91 is opened with the center of the connecting sleeve 8 as the center point, so the infusion tube 7 and the arc track 9 will rotate with the center of the connecting sleeve 8 as the axis, and no motion interference will occur. Round rods 73 are fixedly installed on both sides of the upper end of the telescopic tube 72, and each round rod 73 is movable through the retaining ring 71, which limits the movement of the telescopic tube 72, so that the telescopic tube 72 can only move in the vertical direction, avoiding the displacement and misalignment of the position of the connecting block 76 and the pushing block 98, ensuring that the pushing block 98 can accurately push the connecting block 76 to move, and ensuring the rationality of the structural design.

[0044] Working principle:

[0045] In the first step, the liquid raw material enters the spiral channel 21 through the raw material inlet pipe 15, flows along the spiral direction of the spiral guide blade 2, and the outer heating ring 11 and the heating wire 13 in the inner cylinder 12 preliminarily heat the flowing liquid raw material, and then reaches the bottom side of the inner cavity of the heating cylinder 1, and enters the inner cylinder 12 from the opening of the C-ring 14 to continue heating. The flowing liquid raw material is horizontally and vertically heated by a plurality of vertically distributed dividing pieces 1 3 provided on the spiral guide blade 2 and a plurality of dividing pieces 2 4 provided on the outer end of the inner cylinder 12 and arranged parallel to the spiral guide blade 2. The liquid raw material flows in the spiral channel 21 with fine segmentation, which prolongs the heating time and makes the initial heating more sufficient and uniform. The further heating of the inner cylinder 12 ensures that the liquid raw material can reach the required heating temperature and improves the heating effect. The horizontal and vertical segmentation structures effectively increase the flow disorder of the liquid raw material, making its contact with the heating components (outer heating ring 11 and inner cylinder 12) more complete, further improving the uniformity and efficiency of heating. The design of gradual heating and fine segmentation can accurately control the heating process and ensure the heating quality of the liquid raw material.

[0046] In the second step, after starting the pump body 6, the liquid raw material in the heating cylinder 1 will be sucked into the liquid extraction pipe 61, and then discharged through the liquid discharge pipe 62. The discharged liquid enters the liquid infusion pipe 7, and is finally discharged from the liquid infusion pipe 7 to the raw material liquid inlet pipe 15, completing a circulation loop. During the circulation process, the liquid raw material continuously flows through the spiral channel 21 and the heating area of ​​the inner cylinder 12. Heat exchange will be performed each time it passes through these areas. Due to the circulating flow of the liquid raw material, its temperature will continue to rise until it approaches the temperature of the heating component and finally reaches a thermal equilibrium state. The design of the circulating heating utilizes the continuous heat exchange and the continuous renewal of the liquid to ensure that the heat can be fully transferred to the liquid raw material. Each time the liquid raw material flows through the heating area, it will experience the above-mentioned heat conduction and convection heat transfer process, so that the heat is continuously transferred from the heating component to the liquid raw material, overcoming the temperature gradient in the heat exchange process, making the overall heating of the liquid raw material more uniform, and reducing local temperature differences. Moreover, the circulating heating process can also allow the liquid raw material to make full use of the heat of the heating device to improve the heating efficiency.

[0047] The third step is to wait for the liquid raw material to enter the inner cylinder 12 from the opening of the C-ring 14 after cyclic heating, and start the motor 5 to rotate the stirring shaft 51. The rotation of the stirring shaft 51 drives the plurality of stirring blades 52 to rotate. The rotation of the plurality of stirring blades 52 stirs and mixes the liquid raw material in the inner cylinder 12, thereby promoting heat transfer, enhancing the heat exchange process, making the temperature distribution more uniform, promoting the full fusion of the various components, improving the product quality and performance stability, enhancing fluidity, reducing local overheating, and improving the heating efficiency.

[0048] The fourth step is to press the pressing plate 96 to move the sliding column 95, and the movement of the sliding column 95 drives the connecting rod 93 to move, and the movement of the connecting rod 93 drives the fixed column 94 to disengage from the circular hole on the arc track 9. At this time, the sliding rod 92 is not blocked by the limit of the fixed column 94, and the connecting rod 93 will drive the pushing block 98 to move when moving. The movement of the pushing block 98 will exert an upward force on the connecting block 76, so that the telescopic tube 72 slides upward, so that the telescopic tube 72 is separated from the raw material liquid inlet pipe 15. At this time, it is not blocked by the limit of the telescopic tube 72, and the sliding rod 92 can be pushed to drive the infusion tube 7 to slide along the arc chute 91, so that the raw material liquid inlet pipe 15 is exposed. The connection and separation of the telescopic tube 72 and the raw material liquid inlet pipe 15 can be accurately controlled to ensure accurate docking when cyclic heating is required. When liquid raw materials need to be added, the raw material liquid inlet pipe 15 can be easily exposed, which is more convenient to use.

[0049] In the fifth step, when one end of the infusion tube 7 is aligned with the raw material inlet tube 15, the pressing plate 96 is released, and the connection rod 93 and the push block 98 are reset by the reset action of the spring 2 97. At this time, the push block 98 no longer applies force to the connection block 76, and the reset action of the spring 1 74 is used to reset the telescopic tube 72, so that the telescopic tube 72 is inserted into the raw material inlet tube 15, ensuring the tight and accurate connection between the telescopic tube 72 and the raw material inlet tube 15, avoiding the problems of liquid leakage and unstable connection, and ensuring the liquid inlet. For the normal operation and safety of the thermal device, an annular groove 81 is opened on the inner wall of the connecting sleeve 8, and a fixed ring 82 is rotatably set in the annular groove 81. The fixed ring 82 is fixedly sleeved on the infusion tube 7, which limits the connection between the infusion tube 7 and the connecting sleeve 8, ensuring that the infusion tube 7 can rotate around the center of the circle of the connecting sleeve 8, while avoiding the separation of the infusion tube 7 and the connecting sleeve 8. The setting of the sealing ring 77 and the connecting sleeve 8 seals the connection between the infusion tube 7 and the discharge tube 62 to avoid leakage of liquid raw materials.

[0050] In the sixth step, multiple cycles enable the temperature sensor (not shown) to more accurately monitor and feedback the actual temperature of the liquid, so that the power of the heating wire 13 can be more effectively adjusted through the control panel (not shown) to achieve precise temperature control. The arc-shaped slide groove 91 is opened with the center of the circle of the connecting sleeve 8 as the center point, so the infusion tube 7 and the arc track 9 will rotate with the center of the circle of the connecting sleeve 8 as the axis, and no motion interference will occur. Round rods 73 are fixedly installed on both sides of the upper end of the telescopic tube 72, and each round rod 73 is movable through the retaining ring 71, which limits the movement of the telescopic tube 72, so that the telescopic tube 72 can only move in the vertical direction, avoiding the displacement and misalignment of the position of the connecting block 76 and the pushing block 98, ensuring that the pushing block 98 can accurately push the connecting block 76 to move, and ensuring the rationality of the structural design.

[0051] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. A liquid heat exchange heating device based on a spiral and inner cylinder structure, comprising a heating cylinder (1), characterized in that: An outer heating ring (11) is fixedly sleeved on the outer side of the heating cylinder (1), an inner cylinder (12) is fixedly installed in the inner cavity of the heating cylinder (1), heating wires (13) are arranged inside the outer heating ring (11) and the inner cylinder (12), a spiral guide blade (2) is fixedly sleeved on the outer side of the inner cylinder (12), and the spiral guide blade (2) is fixedly connected to the inner wall of the heating cylinder (1); The spiral guide blade (2) and the outer end of the inner cylinder (12) form a plurality of spiral channels (21); the spiral guide blade (2) is fixedly mounted with a plurality of split pieces (3); each of the split pieces (3) is respectively distributed at the spiral channel (21) along the spiral trajectory of the spiral guide blade (2); and the outer end of the inner cylinder (12) is fixedly mounted with a plurality of split pieces (4); each of the split pieces (4) is respectively distributed at the spiral channel (21) along the spiral trajectory of the spiral guide blade (2); The bottom end of the inner cylinder (12) is fixedly mounted with a C-ring (14), the C-ring (14) is fixedly connected to the bottom surface of the inner wall of the heating cylinder (1), the upper end of the inner cylinder (12) is fixedly connected to the upper wall of the heating cylinder (1), the upper end of the heating cylinder (1) is fixedly mounted with a raw material liquid inlet pipe (15), the head of the upper end of the spiral guide blade (2) is fixedly connected with a stopper (22), and the stopper (22) is fixedly connected to the side wall and the upper wall of the heating cylinder (1).

2. According to claim 1, a liquid heat exchange heating device based on a spiral and inner cylinder structure is characterized in that: Each of the second segmentation pieces (4) is arranged in parallel with the spiral guide blade (2), and each of the first segmentation pieces (3) is arranged in perpendicular to the spiral guide blade (2).

3. According to claim 1, a liquid heat exchange heating device based on a spiral and inner cylinder structure is characterized in that: A motor (5) is fixedly mounted in the middle of the upper end of the heating cylinder (1), and an output shaft of the motor (5) is fixedly connected to a stirring shaft (51); The stirring shaft (51) is rotatably mounted in the heating cylinder (1), and a plurality of stirring blades (52) are fixedly mounted at equal intervals on the stirring shaft (51).

4. According to claim 1, a liquid heat exchange heating device based on a spiral and inner cylinder structure is characterized in that: A pump body (6) is fixedly mounted on the upper end of the heating cylinder (1), and a liquid suction pipe (61) and a liquid discharge pipe (62) are connected to the pump body (6); One end of the liquid extraction tube (61) is arranged at the bottom side of the inner cavity of the heating cylinder (1) and is located at the opening of the C-shaped ring (14).

5. The liquid heat exchange heating device based on the spiral and inner cylinder structure according to claim 4 is characterized in that: A connecting sleeve (8) is fixedly sleeved on the liquid discharge pipe (62), a side wall of the connecting sleeve (8) is provided with an annular groove (81), and a fixing ring (82) is rotatably arranged in the annular groove (81); Wherein, a liquid infusion tube (7) is arranged above the heating tube (1), and the liquid infusion tube (7) is of an inverted U-shaped design.

6. The liquid heat exchange heating device based on the spiral and inner cylinder structure according to claim 5 is characterized in that: The two ends of the liquid infusion tube (7) are respectively connected to the liquid discharge tube (62) and the raw material liquid inlet tube (15), and the two ends of the liquid infusion tube (7) are respectively provided with a sealing ring (77) and a telescopic tube (72); One end of the infusion tube (7) located at the sealing ring (77) is inserted into the connecting sleeve (8) and the discharge tube (62), and is fixedly connected to the fixing ring (82); the telescopic tube (72) is movably sleeved on the other end of the infusion tube (7); and the telescopic tube (72) is movably inserted into the raw material inlet tube (15).

7. The liquid heat exchange heating device based on the spiral and inner cylinder structure according to claim 6 is characterized in that: A retaining ring (71) is arranged above the telescopic tube (72), and the retaining ring (71) is fixedly sleeved on the infusion tube (7). Round rods (73) are fixedly connected to both sides of the upper end of the telescopic tube (72), and each of the round rods (73) movably penetrates the retaining ring (71), and each of the round rods (73) is movably sleeved with a spring (74); The telescopic tube (72) is fixedly connected to the retaining ring (71) via two round rods (73), the top end of each round rod (73) is fixedly connected to a limiting block (75), each limiting block (75) is located at the upper end of the retaining ring (71), and the end of the telescopic tube (72) is fixedly connected to a connecting block (76).

8. The liquid heat exchange heating device based on the spiral and inner cylinder structure according to claim 7 is characterized in that: An arc track (9) is fixedly installed on the upper end of the heating cylinder (1), an arc groove (91) is provided on the upper surface of the arc track (9), a slide rod (92) is slidably installed in the arc groove (91), the upper end of the slide rod (92) is fixedly connected to the infusion tube (7), a connecting rod (93) is provided on one side of the slide rod (92), and the upper and lower ends of the connecting rod (93) are respectively fixedly connected with a slide column (95) and a fixed column (94), the fixed column (94) is movably inserted into the slide rod (92), the slide column (95) movably passes through the slide rod (92), and the end of the slide column (95) is fixedly connected with a pressing plate (96); The movable sleeve on the sliding column (95) is provided with a second spring (97), the pressing plate (96) is fixedly connected to the sliding rod (92) through the second spring (97), and the connecting rod (93) is fixedly connected with a pushing block (98), the pushing block (98) and the connecting block (76) are both designed in the shape of triangular blocks, and the inclined surface of the pushing block (98) is in contact with the inclined surface of the connecting block (76).

9. The liquid heat exchange heating device based on the spiral and inner cylinder structure according to claim 8 is characterized in that: Circular holes matching the fixing columns (94) are provided on both sides of the outer surface of the arc-shaped track (9); Wherein, both sides of the outer end of the arc track (9) are fixedly connected to limiting members (99), and each of the limiting members (99) is respectively arranged at a circular hole to limit the moving distance of the fixing column (94).

10. The liquid heat exchange heating device based on the spiral and inner cylinder structure according to claim 9, characterized in that: The bottom end of the heating cylinder (1) is fixedly provided with three supporting legs (17) at equal intervals around the circumference, a liquid outlet pipe (16) is fixedly provided in the middle of the bottom end of the heating cylinder (1), the liquid outlet pipe (16) and the liquid extraction pipe (61) are both provided with control valves, and the outer sides of the liquid extraction pipe (61), the liquid delivery pipe (7) and the outer heating ring (11) are all provided with insulation layers; The inner wall of the inner cylinder (12) is provided with a temperature sensor, the outer end of the heating cylinder (1) is provided with a control panel, and the temperature sensor and the heating wire (13) are both electrically connected to the control panel.

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