Vertical cylinder type chemical vaporizer

Abstract

The utility model relates to the technical field of chemical vaporizers, in particular to a vertical cylinder type chemical vaporizer which comprises a vertical cylinder, a heat preservation cylinder is coaxially installed in an inner cavity of the vertical cylinder, and a heating vaporization unit is coaxially installed in the heat preservation cylinder. The top of the heating vaporization unit movably penetrates out of a heat preservation cover at the top of the heat preservation barrel in a sealed mode, an outer annular heat preservation cavity is formed between the heating vaporization unit and the inner wall of the heat preservation barrel, a center heat preservation cavity is formed in the center of the heat preservation barrel, and a heat collection unit is installed on the lower portion of the vertical barrel. In the heating vaporization unit, the annular heat conduction cylinder is stably connected with the heat preservation cover, and heat of the center heat preservation cavity and the outer annular heat preservation cavity can be conducted to liquid in the annular heat conduction cylinder in a two-way mode. The liquid primarily heated by the liquid supply elbow enters the annular heat conduction cylinder and then is further heated until vaporization, and the heating vaporization effect is remarkably improved through the internal and external combined heating mode.

Description

Technical Field

[0001] This utility model relates to the field of chemical vaporizer technology, and in particular to a vertical cylindrical chemical vaporizer. Background Technology

[0002] In chemical production, many chemical reactions require gaseous reactants. Vaporizers can vaporize liquid raw materials into gaseous state, allowing them to participate in the reaction more effectively.

[0003] A search revealed a water bath vaporizer disclosed in patent document CN202322343058.3. Its main structure includes a vaporizer, a medium inlet, a vent pipe, a medium outlet, a heater interface, a thermometer interface, an overflow port, a vent port, a drain port, a water inlet, and a sight glass.

[0004] As can be seen from its structure, its tube structure is distributed in a ring shape in the middle section of the vaporizer, and it achieves low-temperature liquid vaporization by exchanging heat with water heated by an electric heater.

[0005] However, in this structure, the heater interface is located below the radiator tube. During the hot water rise, this leads to more concentrated heat distribution in the lower area surrounding the radiator tube, resulting in localized overheating. Over time, this localized overheating causes rapid evaporation of water in that area, making it easier for impurities to crystallize and deposit, causing scaling. Scale not only affects heat exchange efficiency but also corrodes the radiator tube, shortening the equipment's lifespan.

[0006] Based on this, the present invention has optimized and improved the existing technology to address the problems existing in the prior art, and hereby proposes a vertical cylindrical chemical vaporizer to better solve the problems existing in the prior art. Utility Model Content

[0007] To solve one of the aforementioned technical problems, the present invention provides the following technical solution: a vertical cylindrical chemical vaporizer, comprising a vertical cylinder, an insulating cylinder coaxially installed within the inner cavity of the vertical cylinder, the upper part of the insulating cylinder sealingly extending through a cap at the top of the vertical cylinder, a heating vaporization unit coaxially installed inside the insulating cylinder, the top of the heating vaporization unit movable and sealingly extending through to a cap at the top of the insulating cylinder, an outer annular insulating cavity between the heating vaporization unit and the inner wall of the insulating cylinder, a central insulating cavity at the center of the insulating cylinder, the bottom of the central insulating cavity and the bottom of the outer annular insulating cavity both communicating with the inner cavity of the vertical cylinder, and a heat collection unit installed at the lower part of the vertical cylinder for supplying heat to the heating vaporization unit.

[0008] In any of the above embodiments, it is preferred that a number of liquid supply bends are wound around the periphery of the heat insulation cylinder, the liquid inlet end of each liquid supply bend is located at the top of the cap, and the liquid outlet end of each liquid supply bend passes through the heat insulation cylinder and is fixed on the heating vaporization unit and connected to its interior.

[0009] In any of the above embodiments, it is preferred that each of the liquid supply bends is located in the preheating annular cavity between the outer wall of the insulation cylinder and the inner wall of the vertical cylinder.

[0010] In any of the above embodiments, preferably, the heating and vaporization unit includes an annular heat-conducting cylinder, the upper outer wall of which is welded and fixed at the central hole of the insulation cover, an annular plug is fixedly and sealed on the top of the annular heat-conducting cylinder, the center of which is connected to the central insulation cavity, a gas guide pipe is installed on the upper outer wall of the annular heat-conducting cylinder, the gas guide pipe is connected to an external pipeline, and a flow-guiding flare is integrally formed at the bottom of the insulation cylinder, the interior of which is provided with a flow-guiding channel connected to the outer annular insulation cavity and the central channel of the annular heat-conducting cylinder.

[0011] In any of the above embodiments, preferably, the heat collection unit includes a positioning riser installed at the bottom center of the inner cavity of the vertical cylinder. A rotating impeller is movably fitted onto the outer wall of the positioning riser. The outer periphery of the rotating impeller is fixed on a multi-toothed turntable coaxial with it. A screw conveyor is fixedly installed on the outer wall of the vertical cylinder to the left of the multi-toothed turntable. The inner cavity of the screw conveyor is connected to the inner cavity of the vertical cylinder through an opening on the inner wall of the vertical cylinder. The helical blades on the screw conveyor mesh with the corresponding tooth grooves on the multi-toothed turntable. An electric heating tube is coaxially arranged inside the cavity of the positioning riser. The bottom of the electric heating tube is fixed at the bottom center of the inner cavity of the vertical cylinder and heated by an external wire. When the screw conveyor is working, it drives the multi-toothed turntable and the rotating impeller on it to rotate around the fixed axis of the positioning riser and blows the heat generated by the electric heating tube upward.

[0012] In any of the above embodiments, it is preferred that a conical cover is integrally formed on the top outer wall of the positioning riser, and a screen cylinder is fixed on the outer wall of the conical cover, the screen cylinder being used to divert air.

[0013] In any of the above embodiments, it is preferred that the upper part of the screen cylinder is fitted around the lower periphery of the flow-draining funnel.

[0014] In any of the above embodiments, it is preferred that the rear inlet end of the screw conveyor is connected to a hot air blower box, and the screw conveyor is used to convey the hot air blown out of the hot air blower box to the lower part of the inner cavity of the vertical cylinder.

[0015] In any of the above embodiments, it is preferred that an exhaust pipe for communicating with the outside is provided on the outer side wall of the upper right side of the vertical cylinder.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. In the heat collection unit of this utility model, the positioning riser, rotating impeller, multi-toothed turntable, screw conveyor, and electric heating tube work together. The screw conveyor drives the multi-toothed turntable and rotating impeller to rotate, efficiently blowing the heat generated by the electric heating tube and the hot air blown out of the hot air blower upwards. The hot air flows in an orderly manner under the action of the rotating impeller, continuously providing sufficient heat to the heated liquid, improving heat utilization efficiency, and ensuring that the vaporization process proceeds smoothly in a suitable high-temperature environment.

[0018] 2. The liquid supply bend surrounds the preheating annular cavity between the insulation cylinder and the vertical cylinder. Hot air has extensive contact with the liquid supply bend, allowing the liquid to fully absorb heat and complete the initial heating as it flows through. In the heating and vaporization unit, the annular heat-conducting cylinder is securely connected to the insulation cover. Heat from the central insulation cavity and the outer annular insulation cavity can be bidirectionally conducted to the liquid inside the annular heat-conducting cylinder. The liquid, initially heated by the liquid supply bend, enters the annular heat-conducting cylinder and is further heated until vaporization. This combined internal and external heating method significantly improves the heating and vaporization effect.

[0019] 3. The integrated flow-guiding flared mouth and internal flow-guiding channel at the bottom of the insulation cylinder connect the outer annular insulation cavity and the central channel of the annular heat-conducting cylinder, optimizing the path of liquid entering the annular heat-conducting cylinder, ensuring that the gas can flow smoothly upward inside the equipment, and facilitating the smooth discharge of the vaporized gas through the gas guide pipe, connecting with external pipelines for subsequent process operations. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or components are generally identified by similar reference numerals. In the drawings, the elements or components are not necessarily drawn to scale.

[0021] Figure 1 This is a schematic diagram of the internal cross-sectional structure of this utility model.

[0022] Figure 2 This is a partial internal structure diagram of the present invention.

[0023] Figure 3 This is a three-dimensional structural diagram of the heat collection unit of this utility model.

[0024] Figure 4 for Figure 3 A side view structural diagram.

[0025] In the diagram, 1. Vertical cylinder; 2. Insulation cylinder; 3. Liquid supply bend; 4. Cover; 5. Insulation cover; 6. Outer annular insulation cavity; 7. Central insulation cavity; 8. Annular heat-conducting cylinder; 9. Annular plug; 10. Air guide pipe; 11. Drainage bell mouth; 12. Drainage channel; 13. Positioning riser; 14. Rotating impeller; 15. Multi-tooth turntable; 16. Screw conveyor; 17. Electric heating tube; 18. Conical hood; 19. Screen cylinder; 20. Hot air blower box; 21. Exhaust pipe; 22. Preheating annular cavity; 23. Central exhaust pipe. Detailed Implementation

[0026] The embodiments of the present utility model will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of the present utility model, and are therefore merely examples and should not be construed as limiting the scope of protection of the present utility model. The specific structure of the present utility model is as follows: Figures 1-4 As shown in the image.

[0027] Example 1: A vertical cylindrical chemical vaporizer includes a vertical cylinder 1. A heat-insulating cylinder 2 is coaxially installed inside the inner cavity of the vertical cylinder 1. The upper part of the heat-insulating cylinder 2 is sealed through a cap 4 at the top of the vertical cylinder 1. A heating vaporization unit is coaxially installed inside the heat-insulating cylinder. The top of the heating vaporization unit is movable and sealed through a heat-insulating cap 5 at the top of the heat-insulating cylinder 2. An outer annular heat-insulating cavity 6 is provided between the heating vaporization unit and the inner wall of the heat-insulating cylinder 2. A central heat-insulating cavity 7 is provided at the center of the heat-insulating cylinder 2. The bottom of the central heat-insulating cavity 7 and the bottom of the outer annular heat-insulating cavity 6 are both connected to the inner cavity of the vertical cylinder 1. A heat-collecting unit is installed at the lower part of the vertical cylinder 1. The heat-collecting unit is used to supply heat to the heating vaporization unit.

[0028] In any of the above embodiments, it is preferred that a plurality of liquid supply bends 3 are wound around the periphery of the heat insulation cylinder 2, the liquid inlet end of each liquid supply bend 3 is located at the top of the cap 4, and the liquid outlet end of each liquid supply bend 3 passes through the heat insulation cylinder 2 and is fixed on the heating vaporization unit and connected to its interior.

[0029] When the vertical cylindrical chemical vaporizer is working, hot air is supplied through the heat collection unit. The high-temperature hot air flows upward continuously under the action of the heat collection unit and heats the outer surface of the liquid supply bend 3 through the outer annular heat preservation cavity 6, thereby causing the liquid inside the liquid supply bend 3 to continuously heat up. The heated liquid enters the interior of the heating vaporization unit to continue to heat up and complete vaporization. After vaporization, it is discharged through the air guide pipe 10 of the heating vaporization unit. The hot air supplied during the heating process is discharged directly to the outside after heating the liquid inside the heating vaporization unit.

[0030] In any of the above embodiments, it is preferred that each of the liquid supply bends 3 is located in the preheating annular cavity 22 between the outer wall of the insulation cylinder 2 and the inner wall of the vertical cylinder 1.

[0031] The liquid supply bend 3 is installed in the preheating annular cavity 22 between the outer wall of the insulation cylinder 2 and the inner wall of the vertical cylinder 1. When the vertical cylinder chemical vaporizer is running, hot air generated by the heat collection unit flows in from the bottom of the vertical cylinder 1. Due to the low density of hot air, it flows upward continuously and fills the preheating annular cavity 22 under the assistance of natural convection and the heat collection unit. Since the liquid supply bend 3 is coiled in it, it has a large contact area with the hot air, and heat is spontaneously transferred from the hot air to the liquid supply bend 3. The liquid flows into the liquid supply bend 3 from the liquid inlet end at the top of the cap 4. During the flow in the bend, it continuously absorbs the heat transferred by the hot air, gradually increases in temperature, completes the initial heating, and then enters the heating vaporization unit through the liquid outlet end.

[0032] In any of the above embodiments, preferably, the heating and vaporization unit includes an annular heat-conducting cylinder 8, the upper outer wall of the annular heat-conducting cylinder 8 is welded and fixed at the center hole of the heat insulation cover 5, an annular plug 9 is fixedly and sealed on the top of the annular heat-conducting cylinder 8, the center of the annular plug 9 is connected to the central heat insulation cavity 7, a gas guide pipe 10 is installed on the upper outer wall of the annular heat-conducting cylinder 8, the gas guide pipe 10 is connected to an external pipeline, and a flow-guiding funnel 11 is integrally formed at the bottom of the heat insulation cylinder 2, and a flow-guiding channel 12 is provided inside the flow-guiding funnel 11, which is connected to the outer annular heat insulation cavity 6 and the central channel of the annular heat-conducting cylinder 8.

[0033] The annular heat-conducting cylinder 8 of the heating and vaporization unit is welded and fixed to the central hole of the insulation cover 5 via its upper outer wall, ensuring a stable and sealed connection and guaranteeing a relatively independent and stable internal environment. The annular plug 9 is sealed and installed on the top of the annular heat-conducting cylinder 8, with its center connected to the central insulation cavity 7. This design allows the heat from the central insulation cavity 7 to participate in the vaporization process within the annular heat-conducting cylinder 8 in a directional manner, achieving bidirectional heat conduction heating of the liquid within the annular cavity of the annular heat-conducting cylinder 8.

[0034] A central exhaust pipe 23 is installed at the top of the central insulation cavity 7 of the annular heat-conducting cylinder 8. The central exhaust pipe 23 is used in conjunction with the exhaust pipe 21 to discharge the hot air after use.

[0035] When the liquid, which has been initially heated by the supply bend 3, enters the central channel of the annular heat-conducting cylinder 8 through the drainage funnel 11 and the drainage channel 12, the heat conducted by the hot air through the outer annular insulation cavity 6 and the central insulation cavity 7 continuously acts on the annular heat-conducting cylinder 8. Due to the good thermal conductivity of the annular heat-conducting cylinder 8, heat is transferred to the internal liquid, causing the liquid to heat up further until it vaporizes.

[0036] The vaporized gas accumulates inside the annular heat-conducting cylinder 8 and is discharged through the gas guide pipe 10 installed on its upper outer wall, connecting to external pipelines for subsequent connections. The flow-guiding flare 11 is integrally formed at the bottom of the insulation cylinder 2, and the internal flow-guiding channel 12 cleverly connects the outer annular insulation cavity 6 and the central channel of the annular heat-conducting cylinder 8, further optimizing the path of the liquid entering the annular heat-conducting cylinder 8, ensuring smooth upward flow of gas and allowing the liquid to receive further heating smoothly and efficiently.

[0037] In any of the above embodiments, preferably, the heat collection unit includes a positioning riser 13 installed at the bottom center of the inner cavity of the vertical cylinder 1. A rotating impeller 14 is movably fitted onto the outer wall of the positioning riser 13. The outer periphery of the rotating impeller 14 is fixed on a multi-toothed turntable 15 coaxial with it. A screw conveyor 16 is fixedly installed on the outer wall of the vertical cylinder 1 to the left of the multi-toothed turntable 15. The inner cavity of the screw conveyor 16 is connected to the inner wall of the vertical cylinder 1 through an opening in the inner wall of the vertical cylinder 1. The cavities are connected, and the spiral blades on the spiral conveyor 16 mesh with the corresponding tooth grooves on the multi-tooth turntable 15. An electric heating tube 17 is coaxially arranged inside the cavity of the positioning riser 13. The bottom of the electric heating tube 17 is fixed to the bottom center of the inner cavity of the vertical cylinder 1 and is heated by an external wire. When the spiral conveyor 16 is working, it drives the multi-tooth turntable 15 and the rotating impeller 14 on it to rotate around the fixed axis of the positioning riser 13 and blows the heat generated by the electric heating tube 17 upward.

[0038] The heat collection unit is based on the positioning riser 13 as the basic support structure and is firmly installed at the bottom center of the inner cavity of the vertical cylinder 1. The electric heating tube 17 is coaxially arranged inside the cavity of the positioning riser 13 and generates heat after being energized by an external wire.

[0039] When the screw conveyor 16 is working, the rotation of the screw blades drives the multi-toothed turntable 15, which meshes with it, to rotate around the fixed axis of the positioning riser 13. Since the multi-toothed turntable 15 is fixedly connected to the rotating impeller 14, the rotating impeller 14 rotates synchronously. During the rotation of the rotating impeller 14, the heat generated by the electric heating tube 17 is blown upward. Under the action of the rotating impeller 14, the hot air breaks the limitations of natural convection and flows upward in a more orderly and efficient manner, so that the hot air is quickly supplied into the outer annular insulation cavity 6 and the heating vaporization unit, thereby providing a continuous and sufficient heat source for the heated liquid and ensuring that the entire vaporization process can proceed smoothly in a suitable high-temperature environment.

[0040] Example 2: Compared with Example 1, this example also includes the following technical features:

[0041] In any of the above embodiments, it is preferred that a conical cover 18 is integrally formed on the top outer wall of the positioning riser 13, and a screen cylinder 19 is fixed on the outer wall of the conical cover 18, the screen cylinder 19 being used to divert air.

[0042] The rotating impeller 14 blows the heat generated by the electric heating tube 17 upwards. As the hot air rises, it first impacts the conical shroud 18. The conical shroud 18 changes the flow direction of a small portion of the hot air, causing it to diffuse in all directions. Subsequently, the hot air passes through the screen cylinder 19.

[0043] The screen cylinder 19 diverts the hot air, making the hot air more evenly distributed to various heat-requiring parts of the vertical chemical vaporizer, such as the outer annular insulation cavity 6, the liquid supply bend 3, and the heating vaporization unit, thus ensuring comprehensive heating and conduction of the internal liquid.

[0044] In any of the above embodiments, it is preferred that the upper part of the screen cylinder 19 is sleeved around the lower periphery of the flow-draining funnel 11.

[0045] Hot air enters the drainage channel 12 through the lower part of the drainage funnel 11, and then enters the outer wall of the annular heat-conducting cylinder 8 through the drainage channel 12 to continue preheating the liquid after initial heating. Part of it enters the central space of the annular heat-conducting cylinder 8 to achieve heating of the internal liquid from the center. The two work together to improve the heating and vaporization effect.

[0046] In any of the above embodiments, it is preferred that the rear inlet end of the screw conveyor 16 is connected to a hot air blower box 20, and the screw conveyor 16 is used to convey the hot air blown out by the hot air blower box 20 to the lower part of the inner cavity of the vertical cylinder 1.

[0047] When the screw conveyor 16 is working, it can not only drive the multi-tooth turntable 15, but also guide and transport the hot air blown out by the hot air blower box 20. After the hot air enters the center of the inner cavity of the vertical cylinder 1, it continues to be heated under the action of the electric heating tube 17.

[0048] In any of the above embodiments, it is preferred that an exhaust pipe 21 for communicating with the outside is provided on the outer side wall of the upper right side of the vertical cylinder 1. The heated air can then be discharged to the outside.

[0049] Specific working principle: After starting the vertical cylindrical chemical vaporizer, the hot air blower 20 connected to the rear inlet end of the screw conveyor 16 begins to work, blowing out hot air into the screw conveyor 16. The screw conveyor 16 delivers the hot air to the lower part of the inner cavity of the vertical cylinder 1, and its spiral blades rotate, driving the multi-toothed turntable 15, which meshes with it, to rotate around the fixed axis of the positioning riser 13. Since the multi-toothed turntable 15 is fixedly connected to the rotating impeller 14, the rotating impeller 14 rotates synchronously.

[0050] An electric heating element 17, coaxially arranged inside the positioning riser 13, generates heat through an external wire. During rotation, the rotating impeller 14 blows the heat generated by the electric heating element 17 and the hot air from the hot air blower box 20 upwards. As the hot air rises, it first impacts the integrally formed conical shroud 18 on the outer wall of the top of the positioning riser 13. The conical shroud 18 alters the flow direction of a small portion of the hot air, causing it to diffuse outwards. The hot air then passes through a screen cylinder 19 fixed to the outer wall of the conical shroud 18. The screen cylinder 19 diverts the hot air, distributing it more evenly to all heat-requiring parts of the vertical chemical vaporizer.

[0051] A portion of the hot air, after being diverted by the screen cylinder 19, enters the lower part of the guide bell 11 through the sleeve structure connecting the upper part of the screen cylinder 19 and the lower periphery of the guide bell 11, and then flows along the guide channel 12. Part of this hot air enters the outer wall of the annular heat-conducting cylinder 8 to further preheat the liquid that has been initially heated by the liquid supply bend 3; another portion of the hot air enters the central space of the annular heat-conducting cylinder 8 to heat the internal liquid from the center. This combined internal and external heating method greatly improves the heating and vaporization effect.

[0052] Meanwhile, another portion of the hot air, aided by natural convection and the heat collection unit, continues to flow upwards and fills the preheating annular cavity 22 between the outer wall of the insulation cylinder 2 and the inner wall of the vertical cylinder 1. Because the liquid supply bend 3 is coiled within the preheating annular cavity 22, the hot air and the liquid supply bend 3 are in large-area contact, and heat is spontaneously transferred from the hot air to the liquid supply bend 3. The liquid flows into the liquid supply bend 3 from the top inlet end of the cap 4. During its flow within the bend, it continuously absorbs the heat transferred from the hot air, gradually increasing in temperature and completing the initial heating. Subsequently, it passes through the insulation cylinder 2 via the outlet end and enters the central channel of the annular heat-conducting cylinder 8 of the heating and vaporization unit.

[0053] In the heating and vaporization unit, the annular heat-conducting cylinder 8 is welded and fixed to the central hole of the insulation cover 5 via its upper outer wall, ensuring a relatively independent and stable internal environment. The annular plug 9 is sealed and installed on the top of the annular heat-conducting cylinder 8, its center connected to the central insulation cavity 7. This allows the heat from the central insulation cavity 7 to participate in the vaporization process within the annular heat-conducting cylinder 8, achieving bidirectional heat conduction and further heating the liquid within the annular cavity of the annular heat-conducting cylinder 8. When the liquid, initially heated by the liquid supply bend 3, enters the central channel of the annular heat-conducting cylinder 8, the heat conducted by the hot air through the outer annular insulation cavity 6 and the central insulation cavity 7 continuously acts on the annular heat-conducting cylinder 8. Due to the excellent thermal conductivity of the annular heat-conducting cylinder 8, heat is transferred to the internal liquid, causing the liquid to further heat up until vaporization.

[0054] The vaporized gas accumulates inside the annular heat-conducting cylinder 8 and is discharged through the gas guide pipe 10 installed on its upper outer wall, connecting to external pipelines for subsequent process operations. Throughout the heating process, the hot air involved in heating completes its task of heating the liquid inside the heating and vaporization unit and is discharged to the outside through the exhaust pipe 21 installed on the upper right outer wall of the vertical cylinder 1.

[0055] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model. For those skilled in the art, any alternative improvements or transformations made to the implementation of this utility model fall within the protection scope of this utility model.

[0056] Any aspects of this utility model not described in detail are known to those skilled in the art.

Claims

1. A silo chemical vaporizer characterized by: The device includes a vertical cylinder, with an insulation cylinder coaxially mounted inside the inner cavity of the vertical cylinder. The upper part of the insulation cylinder is sealed through a cap at the top of the vertical cylinder. A heating and vaporization unit is coaxially mounted inside the insulation cylinder. The top of the heating and vaporization unit is movable and sealed through to an insulation cap at the top of the insulation cylinder. An outer annular insulation cavity is provided between the heating and vaporization unit and the inner wall of the insulation cylinder. A central insulation cavity is provided at the center of the insulation cylinder. The bottom of the central insulation cavity and the bottom of the outer annular insulation cavity are both connected to the inner cavity of the vertical cylinder. A heat collection unit is installed at the lower part of the vertical cylinder, and the heat collection unit is used to supply heat to the heating and vaporization unit.

2. A vertical cylindrical chemical vaporizer according to claim 1, characterized in that: Several liquid supply bends are wound around the periphery of the insulation cylinder. The liquid inlet end of each liquid supply bend is located at the top of the cap, and the liquid outlet end of each liquid supply bend passes through the insulation cylinder and is fixed on the heating and vaporization unit and connected to its interior.

3. A vertical cylindrical chemical vaporizer according to claim 2, characterized in that: Each of the liquid supply bends is located in the preheating annular cavity between the outer wall of the insulation cylinder and the inner wall of the vertical cylinder.

4. A vertical cylindrical chemical vaporizer as claimed in claim 3, characterized in that: The heating and vaporization unit includes an annular heat-conducting cylinder. The upper outer wall of the annular heat-conducting cylinder is welded and fixed at the center hole of the insulation cover. An annular plug is fixedly and sealed on the top of the annular heat-conducting cylinder. The center of the annular plug is connected to the central insulation cavity. A gas guide pipe is installed on the upper outer wall of the annular heat-conducting cylinder and is connected to an external pipeline. The bottom of the insulation cylinder is integrally formed with a flow-guiding flare. The interior of the flow-guiding flare is provided with a flow-guiding channel that is connected to the outer annular insulation cavity and the central channel of the annular heat-conducting cylinder.

5. A column type chemical vaporizer according to claim 4, characterized in that: The heat collection unit includes a positioning riser installed at the bottom center of the inner cavity of the vertical cylinder. A rotating impeller is movably fitted onto the outer wall of the positioning riser. The outer periphery of the rotating impeller is fixed on a multi-toothed turntable coaxial with it. A screw conveyor is fixedly installed on the outer wall of the vertical cylinder to the left of the multi-toothed turntable. The inner cavity of the screw conveyor is connected to the inner cavity of the vertical cylinder through an opening on the inner wall of the vertical cylinder. The helical blades on the screw conveyor mesh with the corresponding tooth grooves on the multi-toothed turntable. An electric heating tube is coaxially arranged inside the cavity of the positioning riser. The bottom of the electric heating tube is fixed at the bottom center of the inner cavity of the vertical cylinder and is heated by an external wire. When the screw conveyor is working, it drives the multi-toothed turntable and the rotating impeller on it to rotate around the fixed axis of the positioning riser and blows the heat generated by the electric heating tube upward.

6. A column type chemical vaporizer according to claim 5, characterized in that: A conical cover is integrally formed on the top outer wall of the positioning riser, and a screen cylinder is fixed on the outer wall of the conical cover. The screen cylinder is used to divert air.

7. A column type chemical vaporizer according to claim 6, characterized in that: The upper part of the screen cylinder is fitted around the lower periphery of the flow-draining funnel.

8. A column type chemical vaporizer according to claim 7, characterized in that: The rear inlet end of the screw conveyor is connected to a hot air blower box, and the screw conveyor is used to convey the hot air blown out of the hot air blower box to the lower part of the inner cavity of the vertical cylinder.

9. A column type chemical vaporizer according to claim 8, characterized in that: An exhaust pipe for communicating with the outside is provided on the outer side wall of the upper right side of the vertical cylinder.

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