A heat preservation raw material tank with manually adjustable flow rate

Abstract

This application discloses a manually adjustable insulated raw material tank, comprising: an insulated tank; a raw material tank fixedly connected inside the insulated tank, forming an insulated cavity; a discharge pipe connecting to the raw material tank and penetrating the insulated tank, with a first heat-insulating sleeve on the discharge pipe; and a manually adjustable valve, comprising a second heat-insulating sleeve assembly and a valve core adjusting assembly. The second heat-insulating sleeve assembly is fitted onto the first heat-insulating sleeve, and the second heat-insulating sleeve assembly has a discharge port coaxial with the discharge pipe, which is connected to the discharge pipe. The valve core adjusting assembly has multiple through holes of different diameters evenly arranged along the circumference. By rotating the valve core adjusting assembly, one of its through holes is fully aligned with the discharge port to control the flow rate. When the valve core adjusting assembly is rotated until no through hole is aligned, the discharge port is closed. This addresses the problem that the upper temperature resistance limit of mainstream electronic flow control valves on the market is only 120℃, while insulated raw material tanks need to maintain a long-term operating temperature of 180-250℃; and the problem that electronic components are prone to corona discharge in a vacuum environment.

Description

Technical Field

[0001] This application relates to a heat-insulated raw material tank with manually adjustable flow rate, belonging to the field of chemical equipment technology. Background Technology

[0002] In high-value-added chemical separation processes such as molecular distillation (MD) and thin-film distillation (TFD), the insulated feed tank serves as a core material supply unit, and its flow rate control accuracy directly affects product yield and quality stability. However, existing technologies suffer from the following systemic defects under vacuum conditions: mainstream electronic flow control valves (such as mass flow meters, MFCs) face a dual technical bottleneck: their temperature resistance limit is only 120℃, while the insulated feed tank needs to maintain a long-term operating temperature of 180-250℃ (for polyester / silicone oil materials); electronic components are prone to corona discharge in a vacuum environment, resulting in a sensor drift rate of up to 15% per month; statistics from a chemical company in 2022 show that the mean time between failures (MTBF) of electronic valves under distillation conditions is only 47 days. Summary of the Invention

[0003] The purpose of this application is to provide a manually adjustable insulated raw material tank to solve the dual technical bottlenecks of mainstream electronic flow control valves (such as mass flow meters MFC): the upper limit of temperature resistance is only 120℃, while the insulated raw material tank needs to maintain a long-term operating temperature of 180-250℃ (for polyester / silicone oil materials); and the problem that electronic components are prone to corona discharge in a vacuum environment.

[0004] The technical problem to be solved in this application is achieved by the following technical solution: A manually adjustable flow rate insulated raw material tank, comprising: The insulated tank is equipped with an oil inlet and an oil outlet for circulating the heating medium. The raw material tank is fixedly connected inside the insulated tank, and an insulated cavity is formed between the raw material tank and the insulated tank; the raw material tank is provided with a feed inlet for receiving externally input fluid materials; The discharge pipe is connected to the raw material tank and passes through the heat preservation tank, and a first heat insulation sleeve is provided on the discharge pipe; The manual regulating valve includes a second heat insulation sleeve assembly and a valve core adjusting assembly. The second heat insulation sleeve assembly is fitted onto the first heat insulation sleeve, and the second heat insulation sleeve assembly is provided with a discharge port coaxial with the discharge pipe. The discharge port is connected to the discharge pipe. The valve core adjusting assembly is provided with a plurality of through holes of different diameters evenly arranged along the circumferential direction. By rotating the valve core adjusting assembly, one of its through holes is fully aligned with the discharge port to control the flow rate. When the valve core adjusting assembly is rotated to the point where no through hole is aligned, the discharge port is closed.

[0005] Preferably, a balancing pipe is connected between the discharge pipe and the raw material tank; in the liquid material transportation, the balancing pipe can avoid air resistance caused by pressure difference and realize the smooth flow of material.

[0006] Preferably, the second heat insulation sleeve assembly includes: The second heat insulation sleeve has a positioning groove on the first heat insulation sleeve and a positioning key on the second heat insulation sleeve assembly. The positioning key is engaged with the positioning groove to ensure that the discharge port is connected to the discharge pipe. An end cap is threadedly fixed to the second heat insulation sleeve, and the end cap is sleeved with the first heat insulation sleeve.

[0007] Preferably, a first sealing ring is installed between the end cap and the first heat insulation sleeve.

[0008] Preferably, the valve core adjusting assembly includes: The valve core is rotatably connected to the second heat insulation sleeve and the end cap. The valve core has a plurality of through holes of different diameters evenly arranged in the circumferential direction, and the diameter of the through holes is smaller than the diameter of the discharge port. The knob is fixedly connected to the valve core by screws.

[0009] Preferably, the number of through holes is four, and the diameters of the through holes are 4mm, 6mm, 8mm and 10mm respectively.

[0010] Preferably, the insulated tank is provided with an indicator mark, which is used to indicate the position of the discharge port; the knob is provided with four numerical marks in sequence, and the four numerical marks correspond to the positions of the four through holes respectively; by rotating the knob so that one of the numerical marks on it is aligned with the indicator mark, it is ensured that the through hole of the corresponding diameter is aligned with the discharge port.

[0011] Preferably, a second sealing ring is installed between the valve core and the end cap.

[0012] Preferably, the second heat insulation sleeve, the valve core, the first sealing ring, and the second sealing ring heat sleeve are all made of polytetrafluoroethylene.

[0013] The beneficial effects of this application are: 1. This application provides a heat-insulating tank with an oil inlet and an oil outlet for circulating a heating medium; a raw material tank fixedly connected inside the heat-insulating tank, forming a heat-insulating cavity with the tank; the raw material tank has an inlet for receiving externally input fluid materials; an outlet pipe connects to the raw material tank and penetrates the heat-insulating tank, and a first heat-insulating sleeve is provided on the outlet pipe; a manual regulating valve includes a second heat-insulating sleeve assembly and a valve core adjusting assembly, the second heat-insulating sleeve assembly being fitted onto the first heat-insulating sleeve, and the second heat-insulating sleeve assembly having an outlet coaxial with the outlet pipe, the outlet communicating with the outlet pipe; the valve core adjusting assembly having multiple through holes of different diameters evenly arranged along the circumferential direction, the flow rate being controlled by rotating the valve core adjusting assembly so that one of its through holes is completely aligned with the outlet, and the outlet closing when the valve core adjusting assembly is rotated to the point where no through hole is aligned. This addresses the dual technical bottlenecks of mainstream electronic flow control valves (such as mass flow meters, MFC): their temperature resistance is limited to only 120℃, while insulated raw material tanks need to maintain a long-term operating temperature of 180-250℃ (for polyester / silicone oil materials); and electronic components are prone to corona discharge in vacuum environments.

[0014] 2. This application solves the problem of material not dripping down often due to the inability to balance air pressure by connecting a balancing pipe between the discharge pipe and the raw material tank. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present application; Figure 2 This is a cross-sectional structural diagram of this application; Figure 3 This is a schematic diagram showing the location and structure of the keyway and indicator markings in this application; Figure 4 This is a three-dimensional structural diagram of the manual regulating valve of this application; Figure 5 This is a three-dimensional structural diagram of the valve core of this application.

[0016] In the diagram: 1. Insulated tank; 101. Oil inlet; 102. Oil outlet; 2. Raw material tank; 201. Feed inlet; 3. Discharge pipe; 4. First heat insulation sleeve; 5. Balance pipe; 6. Second heat insulation sleeve; 7. End cap; 8. First sealing ring; 9. Knob; 10. Valve core; 11. Second sealing ring; 12. Through hole; 13. Discharge outlet; 14. Indicator mark; 15. Number mark; 16. Positioning key; 17. Positioning groove. Detailed Implementation

[0017] To facilitate a clear understanding of the technical means, creative features, objectives, and effects of this application, the following description, in conjunction with specific illustrations, further elaborates on this application.

[0018] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the equipment or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0019] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0020] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0021] The following disclosure provides numerous different embodiments or examples for implementing various structures of the embodiments of this application. To simplify the disclosure of the embodiments of this application, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or reference letters may be repeated in different examples of the embodiments of this application; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, various specific examples of processes and materials are provided in the embodiments of this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0022] like Figure 1-5 As shown, a heat-insulated raw material tank 2 with manually adjustable flow rate includes a heat-insulated tank 1, a raw material tank 2, a discharge pipe 3, and a manual regulating valve.

[0023] Specifically, the heat preservation tank 1 is provided with an oil inlet 101 and an oil outlet 102, and is connected to the TCU oil supply circulation system during use for circulating the heating medium; the raw material tank 2 is fixedly connected to the heat preservation tank 1 by flange or welding, and an insulation cavity is formed between the outer wall of the raw material tank 2 and the inner wall of the heat preservation tank 1, and the insulation cavity is connected to the oil inlet 101 and the oil outlet 102; the raw material tank 2 is provided with a feed inlet 201 for receiving externally input fluid materials; the discharge pipe 3 connects to the raw material tank 2 and passes through the heat preservation tank 1, and a first heat insulation sleeve 4 is provided on the discharge pipe 3.

[0024] The manual regulating valve includes a second heat insulation sleeve 6 assembly and a valve core 10 regulating assembly. The second heat insulation sleeve 6 assembly is sleeved on the first heat insulation sleeve 4, and the second heat insulation sleeve 6 assembly is provided with a discharge port 13 coaxial with the discharge pipe 3. The discharge port 13 is connected to the discharge pipe 3. The valve core 10 regulating assembly is provided with a plurality of through holes 12 of different diameters evenly arranged along the circumferential direction, and the diameter of each through hole 12 is smaller than the diameter of the discharge port 13. By rotating the valve core 10 regulating assembly, one of its through holes 12 is aligned with the discharge port 13 to control the flow rate. When the valve core 10 regulating assembly is rotated to the point where no through hole 12 is aligned, the discharge port 13 is closed.

[0025] Specifically, the second heat insulation sleeve 6 assembly includes: a second heat insulation sleeve 6, on which a positioning key 16 is protruding, and a positioning groove 17 is provided on the first heat insulation sleeve 4. The second heat insulation sleeve is positioned and engaged with the positioning groove 17 via the positioning key 16, ensuring that the discharge port 13 is connected to the discharge pipe 3; and an end cap 7, which is threadedly fixed to the second heat insulation sleeve and sleeved with the first heat insulation sleeve 4. A first sealing ring 8 is installed between the end cap 7 and the first heat insulation sleeve 4.

[0026] Specifically, the valve core 10 adjustment assembly includes: a valve core 10, which is rotatably connected to the second heat insulation sleeve 6 and the end cap 7. A second sealing ring 11 is installed between the valve core 10 and the end cap 7. Four through holes 12 with different diameters are evenly arranged circumferentially on the valve core 10. The diameters of the through holes 12 are 4mm, 6mm, 8mm, and 10mm respectively, and the diameters of the through holes 12 are all smaller than the diameter of the discharge port 13. A knob 9 is fixedly connected to the valve core 10 by screws. Four numerical markings 15 are arranged on the knob 9, and the four numerical markings 15 correspond to the positions of the four through holes 12 respectively. An indicator mark 14 is provided on the heat preservation tank 1, which is used to indicate the position of the discharge port 13. By rotating the knob 9 to align one of the numerical markings 15 with the indicator mark 14, the corresponding diameter through hole 12 is aligned with the discharge port 13. It should be noted that in this application, the second heat insulation sleeve 6, the valve core 10, the first sealing ring 8, and the second sealing ring 11 are all made of polytetrafluoroethylene (PTFE). Furthermore, the thickness of the second heat insulation sleeve 6 is greater than the thickness of the first heat insulation sleeve 4.

[0027] To avoid air resistance caused by pressure difference during the transport of liquid materials in a vacuum environment, a balancing pipe 5 is connected between the discharge pipe 3 and the raw material tank 2; the balancing pipe 5 can avoid air resistance caused by pressure difference and realize the smooth flow of materials.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this application. Those skilled in the art should understand that this application is not limited to the above embodiments, and various changes and modifications can be made without departing from the spirit and scope of this application; all such changes and modifications fall within the scope of the claims. The scope of protection of this application is defined by the appended claims and their equivalents.

Claims

1. A heat-insulated raw material tank with manually adjustable flow rate, characterized in that, include: The insulated tank is equipped with an oil inlet and an oil outlet for circulating the heating medium. The raw material tank is fixedly connected inside the insulated tank, and an insulated cavity is formed between the raw material tank and the insulated tank; the raw material tank is provided with a feed inlet for receiving externally input fluid materials; The discharge pipe is connected to the raw material tank and passes through the heat preservation tank, and a first heat insulation sleeve is provided on the discharge pipe; The manual regulating valve includes a second heat insulation sleeve assembly and a valve core adjusting assembly. The second heat insulation sleeve assembly is fitted onto the first heat insulation sleeve, and the second heat insulation sleeve assembly is provided with a discharge port coaxial with the discharge pipe. The discharge port is connected to the discharge pipe. The valve core adjusting assembly is provided with a plurality of through holes of different diameters evenly arranged along the circumferential direction. By rotating the valve core adjusting assembly, one of its through holes is fully aligned with the discharge port to control the flow rate. When the valve core adjusting assembly is rotated to the point where no through hole is aligned, the discharge port is closed.

2. The insulated raw material tank with manually adjustable flow rate according to claim 1, characterized in that: A balancing pipe connects the discharge pipe to the raw material tank; in the transportation of liquid materials, the balancing pipe can avoid air resistance caused by pressure difference and realize the smooth flow of materials.

3. A manually adjustable flow rate insulated raw material tank according to claim 1 or 2, characterized in that: The second heat insulation sleeve assembly includes: The second heat insulation sleeve has a positioning groove on the first heat insulation sleeve and a positioning key on the second heat insulation sleeve assembly. The positioning key is engaged with the positioning groove to ensure that the discharge port is connected to the discharge pipe. An end cap is threadedly fixed to the second heat insulation sleeve, and the end cap is sleeved with the first heat insulation sleeve.

4. The insulated raw material tank with manually adjustable flow rate according to claim 3, characterized in that: A first sealing ring is installed between the end cap and the first heat insulation sleeve.

5. A manually adjustable flow rate insulated raw material tank according to claim 4, characterized in that, The valve core adjustment assembly includes: The valve core is rotatably connected to the second heat insulation sleeve and the end cap. The valve core has a plurality of through holes of different diameters evenly arranged in the circumferential direction, and the diameter of the through holes is smaller than the diameter of the discharge port. The knob is fixedly connected to the valve core by screws.

6. A manually adjustable flow rate insulated raw material tank according to claim 5, characterized in that: The number of through holes is four, and the diameters of the through holes are 4mm, 6mm, 8mm and 10mm respectively.

7. A heat-insulated raw material tank with manually adjustable flow rate according to claim 6, characterized in that: The insulated tank is provided with an indicator mark, which is used to indicate the position of the discharge port; the knob is provided with four numbers in sequence, and the four numbers correspond to the positions of the four through holes respectively; by rotating the knob so that one of the numbers on it is aligned with the indicator mark, the through hole of the corresponding diameter is aligned with the discharge port.

8. A manually adjustable flow rate insulated raw material tank according to claim 7, characterized in that: A second sealing ring is installed between the valve core and the end cap.

9. A manually adjustable flow rate insulated raw material tank according to claim 8, characterized in that: The second heat insulation sleeve, the valve core, the first sealing ring, and the second sealing ring heat sleeve are all made of polytetrafluoroethylene.

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