Energy-saving structure of heat medium circulating pump for PBT production

Abstract

The utility model relates to the field of heat medium circulating pump discloses an energy -conserving structure of heat medium circulating pump for PBT production, including output motor, output motor, the right surface fixed connection of output motor has cooling sleeve, the one end fixed connection of cooling sleeve away from output motor has the pump body, the right surface fixed connection of pump body has the input, the top fixed connection of pump body has the output, the output fixed connection of output motor has the pivot, through adopting double cooling form, can through the cooling water's role in cooling pipe to the cooling of cold wind while through cold -blast bearing, pump shaft etc. Component heat dissipation can reduce the attenuation rate of cold -blast cooling efficiency, ensure the heat dissipation effect and efficiency of cold -blast, and can the cooling water is separated, avoid cooling water directly with bearing, pump shaft etc. Direct contact component, prevent the influence that scale and other impurities cause to component, prolong the service life of component.

Description

Technical Field

[0001] This utility model relates to the field of heat medium circulation pump technology, and more specifically, to an energy-saving structure for a heat medium circulation pump used in PBT production. Background Technology

[0002] In the field of polymer materials, polybutylene terephthalate (PBT) is a high-performance thermoplastic polyester material with characteristics such as high mechanical strength, good chemical resistance, excellent electrical insulation properties, and convenient molding and processing. It is widely used in many fields, including electronics, automotive manufacturing, mechanical engineering, and medical devices. During PBT production, precise temperature control is required in stages such as polymerization and melt delivery to ensure that the product's molecular weight distribution, mechanical properties, and other indicators meet requirements. The heat transfer fluid circulation pump maintains the flow and pressure of the heat transfer fluid through stable power output, ensuring a uniform and constant temperature in the reaction system, which is a key guarantee for achieving efficient and high-quality PBT production.

[0003] In existing technologies, heat dissipation for components such as bearings and pump shafts in heat transfer fluid circulating pumps often employs a single cooling method, such as relying solely on cooling water. This single cooling water method is inflexible; when heat dissipation is insufficient, the equipment operates at high temperatures, leading to reduced efficiency, increased overall energy consumption, and a shortened lifespan. Utility Model Content

[0004] To address at least one of the aforementioned problems, this utility model first provides an energy-saving structure for a heat medium circulation pump used in PBT production, comprising an output motor, a cooling sleeve fixedly connected to the output motor, a pump body fixedly connected to the end of the cooling sleeve away from the output motor, an inlet on the pump body, an outlet on the top of the pump body, a rotating shaft fixedly connected to the output end of the output motor, and a blade fixedly connected to the end of the rotating shaft away from the output motor.

[0005] A partition sleeve is fitted around the outside of the rotating shaft. A cooling pipe is provided between the partition sleeve and the cooling sleeve. A water inlet is fixedly connected to one end of the cooling pipe near the pump body, and a drain outlet is fixedly connected to the other end of the cooling pipe. An air inlet is fixedly connected to the lower surface of one end of the cooling pipe near the pump body, and an air outlet is fixedly connected to the lower surface of the other end of the cooling pipe.

[0006] Optionally, it also includes a base, wherein a first fixing seat is fixedly connected to the lower surface of the output motor, and the bottom of the first fixing seat is fixedly connected to the base by a first screw.

[0007] Optionally, a second fixing seat is fixedly connected to the lower surface of the pump body, and the bottom of the second fixing seat is fixedly connected to the base by a second screw.

[0008] Optionally, a bracket is fixedly connected to the upper surface of the base, and the upper end of the bracket is fixedly connected to the cooling sleeve.

[0009] Optionally, a connecting flange is fixedly connected to both the right end of the input port and the upper end of the output port.

[0010] Optionally, the two ends of the separator sleeve are fixedly connected to the side surface of the output motor and the right inner wall of the cooling sleeve, respectively.

[0011] Optionally, the separator sleeve is made of a combination of stainless steel perforated mesh and PTFE coating.

[0012] Optionally, the outer surfaces of the water inlet and the drain outlet are both fixedly connected to the cooling sleeve, and the outer surfaces of the air inlet and the air outlet are both fixedly connected to the cooling sleeve.

[0013] Optionally, the outer surface of the rotating shaft is rotatably connected to the cooling sleeve.

[0014] Optionally, an oil seal is fitted onto one end of the shaft near the blade.

[0015] Compared to existing technologies, the energy-saving structure of the PBT production heat medium circulation pump in this invention employs a dual cooling system. While cooling the bearings, pump shaft, and other components with cold air, it also cools the cold air with the help of cooling water inside the cooling pipes. This reduces the rate of decline in the cooling efficiency of the cold air, ensuring the heat dissipation effect and efficiency of the cold air. Furthermore, the cooling water can be separated to prevent direct contact between the cooling water and the bearings, pump shaft, and other components, thus preventing the formation of scale and other impurities that could affect the components and extending their service life. Attached Figure Description

[0016] Figure 1 This is a structural diagram of the energy-saving structure of the heat medium circulation pump for PBT production according to an embodiment of the present invention;

[0017] Figure 2 This is a cross-sectional view of the energy-saving structure of the heat medium circulation pump for PBT production according to an embodiment of this utility model;

[0018] Figure 3 for Figure 2 Enlarged view of section A in the middle;

[0019] Figure 4 This is a partial exploded view of the energy-saving structure of the heat medium circulation pump for PBT production according to an embodiment of this utility model.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Output motor; 2. Cooling sleeve; 3. Pump body; 4. Inlet; 5. Outlet; 6. Shaft; 7. Blade; 8. Separating sleeve; 9. Cooling pipe; 10. Water inlet; 11. Drain outlet; 12. Air inlet; 13. Air outlet; 14. First fixed seat; 15. First screw; 16. Base; 17. Second fixed seat; 18. Second screw; 19. Bracket; 20. Connecting flange. Detailed Implementation

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0023] The accompanying drawings of the embodiments of this utility model provide a coordinate system XYZ, where the positive direction of the X-axis represents the left and the negative direction of the X-axis represents the right, the positive direction of the Y-axis represents the front and the negative direction of the Y-axis represents the back, the positive direction of the Z-axis represents the top and the negative direction of the Z-axis represents the bottom.

[0024] This utility model embodiment provides an energy-saving structure for a heat medium circulation pump used in PBT production, combined with... Figures 1 to 4 As shown, it includes an output motor 1, a cooling sleeve 2 fixedly connected to the output motor 1, a pump body 3 fixedly connected to the end of the cooling sleeve 2 away from the output motor 1, an inlet 4 on the pump body 3, an outlet 5 on the top of the pump body 3, a rotating shaft 6 fixedly connected to the output end of the output motor 1, and a blade 7 fixedly connected to the end of the rotating shaft 6 away from the output motor 1.

[0025] The heat transfer medium is the carrier used to transfer heat energy in a heating system, mainly including hot water, steam, and heat transfer oil. During operation, the heat transfer medium enters the pump body 3 through the inlet 4, is stirred by the impeller 7, and is then output through the outlet 5.

[0026] like Figures 2 to 4 As shown, a partition sleeve 8 is fitted around the outside of the rotating shaft 6. A cooling pipe 9 is provided between the partition sleeve 8 and the cooling sleeve 2. A water inlet 10 is fixedly connected to one end of the cooling pipe 9 near the pump body 3, and a drain outlet 11 is fixedly connected to the other end of the cooling pipe 9. An air inlet 12 is fixedly connected to the lower surface of one end of the cooling pipe 9 near the pump body 3, and an exhaust outlet 13 is fixedly connected to the lower surface of the other end of the cooling pipe 9.

[0027] Both the air inlet 12 and the air outlet 13 are connected to an external fan via pipes. Both the water inlet 10 and the water outlet 11 are connected to an external cooling water circulator via pipes.

[0028] In use, cold air enters the interior of the partition sleeve 8 through the air inlet 12 to dissipate heat from the rotating shaft 6. During this process, cooling water enters the interior of the cooling pipe 9 through the water inlet 10 and finally exits through the drain outlet 11. While the cold air dissipates heat from the rotating shaft 6 inside the partition sleeve 8, it also comes into contact with the cooling pipe 9 through the partition sleeve 8 due to the material of the partition sleeve 8, thereby cooling the cold air. During the circulation process, the cold air moves back and forth on both sides of the partition sleeve 8. Under the action of the cooling pipe 9, the cooling effect of the cooling pipe 9 on the cold air is realized, thereby improving the heat dissipation effect of the cold air on the rotating shaft 6. Finally, the cold air is discharged from the exhaust outlet 13.

[0029] By employing a dual cooling system, while cooling air dissipates heat from components such as bearings and pump shafts, the cooling water inside the cooling pipes also cools the air, reducing the rate of decrease in cooling efficiency and ensuring the effectiveness and efficiency of the cooling. Furthermore, the cooling water can be separated to prevent direct contact between the cooling water and components such as bearings and pump shafts, thus preventing scale and other impurities from affecting the components and extending their service life.

[0030] like Figure 1 As shown, optionally, it also includes a base 16, and a first fixing seat 14 is fixedly connected to the lower surface of the output motor 1. The bottom of the first fixing seat 14 is fixedly connected to the base 16 by a first screw 15.

[0031] Optionally, a second fixing seat 17 is fixedly connected to the lower surface of the pump body 3, and the bottom of the second fixing seat 17 is fixedly connected to the base 16 by a second screw 18.

[0032] In this embodiment, the first fixed seat 14 and the second fixed seat 17 facilitate the installation and fixing of the output motor 1 and the pump body 3, while the bracket 19 keeps the cooling sleeve 2 stable.

[0033] Optionally, a bracket 19 is fixedly connected to the upper surface of the base 16, and the upper end of the bracket 19 is fixedly connected to the cooling sleeve 2.

[0034] The bracket 19 and the cooling sleeve 2 can be welded together or integrally formed. The bracket 19 and the base 16 form an approximately triangular structure, which provides a more stable support.

[0035] Optionally, a connecting flange 20 is fixedly connected to the right end of the input port 4 and the upper end of the output port 5. The connecting flange 20 not only serves as a connection but also enhances the sealing effect at the connection, effectively preventing fluid leakage. At the same time, it also serves as a support, providing structural stability for the pipeline and reducing the risk of vibration. Furthermore, it can be quickly disassembled and assembled, significantly shortening downtime and making maintenance more convenient.

[0036] Optionally, the two ends of the separator sleeve 8 are fixedly connected to the side surface of the output motor 1 and the right inner wall of the cooling sleeve 2, respectively. The separator sleeve 8 is sleeved on the output end housing of the output motor 1 and does not rotate, and the end of the cooling sleeve 2 near the output motor 1 is sleeved on the separator sleeve 8.

[0037] Optionally, the separator sleeve 8 is made of a combination of stainless steel porous mesh and PTFE coating. The stainless steel porous mesh, while fixing the cooling pipe 9, allows cold air to pass through the mesh of the separator sleeve 8, dissipating heat and cooling the cooling pipe 9 and the rotating shaft 6. The PTFE coating has excellent chemical stability, being resistant to high and low temperatures as well as corrosion.

[0038] Optionally, the outer surfaces of the water inlet 10 and the drain outlet 11 are both fixedly connected to the cooling sleeve 2, and the outer surfaces of the air inlet 12 and the air outlet 13 are both fixedly connected to the cooling sleeve 2.

[0039] The cooling sleeve 2 has several holes to allow pipes from the water inlet 10, drain outlet 11, air inlet 12 and air outlet 13 to pass through.

[0040] Optionally, the outer surface of the rotating shaft 6 is rotatably connected to the cooling sleeve 2. The rotating shaft 6 is housed in a chamber within the cooling sleeve 2 and rotates within the chamber. The cooling sleeve 2 protects the rotating shaft 6. Simultaneously, the gas inside the chamber exchanges with the external gas through the air inlet 12 and the air outlet 13, thereby carrying away the heat generated when the rotating shaft 6 rotates.

[0041] Optionally, an oil seal (not shown) is fitted at one end of the rotating shaft 6 near the impeller 7. Without affecting the rotation of the rotating shaft 6, the oil seal prevents the heat transfer medium in the pump body 3 from flowing into the separator sleeve 8. The specific structure of the oil seal is prior art and will not be described in detail here.

[0042] Similarly, the components included in the "components," "mechanisms," and "devices" of this disclosure can also be flexibly combined. They can be modularly produced according to actual needs and assembled as an independent module; or they can be assembled separately to form a module in this device. The division of the above-mentioned components in this disclosure is only one embodiment for ease of reading and is not intended to limit the scope of protection of this disclosure. Any technical solution that includes the above-mentioned components and has the same function should be understood as an equivalent technical solution of this disclosure.

[0043] In the description of this disclosure, 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," "axial," "radial," and "circumferential" 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 disclosure and simplifying the description, and do not indicate or imply that the device 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 disclosure.

[0044] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include at least one of that feature. In the description of this disclosure, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0045] In this disclosure, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "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 mechanical connection or an electrical connection; 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, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0046] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0047] It should be noted that when a component is referred to as "fixed to," "set on," "fixed to," or "mounted on" another component, it can be directly on the other component or there may be an intervening component. When a component is considered to be "connected to another component," it can be directly connected to the other component or there may be an intervening component. Furthermore, when a component is considered to be "fixedly connected" to another component, the connection can be detachable or non-detachable, such as through socketing, snap-fitting, integral molding, welding, etc., which are achievable in conventional technologies and will not be elaborated upon here.

[0048] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0049] The above embodiments are merely illustrative of several implementation methods of this disclosure, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the inventive concept of this disclosure, and these modifications and improvements all fall within the protection scope of this disclosure.

Claims

1. An energy-saving structure for a heat medium circulation pump used in PBT production, characterized in that, Includes an output motor (1), a cooling sleeve (2) is fixedly connected to the output motor (1), a pump body (3) is fixedly connected to the end of the cooling sleeve (2) away from the output motor (1), an inlet (4) is provided on the pump body (3), an outlet (5) is provided on the top of the pump body (3), a rotating shaft (6) is fixedly connected to the output end of the output motor (1), and a blade (7) is fixedly connected to the end of the rotating shaft (6) away from the output motor (1); A partition sleeve (8) is fitted around the outside of the rotating shaft (6). A cooling pipe (9) is provided between the partition sleeve (8) and the cooling sleeve (2). A water inlet (10) is fixedly connected to one end of the cooling pipe (9) near the pump body (3). A drain outlet (11) is fixedly connected to the other end of the cooling pipe (9). An air inlet (12) is fixedly connected to the lower surface of one end of the cooling pipe (9) near the pump body (3). An exhaust outlet (13) is fixedly connected to the lower surface of the other end of the cooling pipe (9).

2. The energy-saving structure of the heat medium circulation pump for PBT production according to claim 1, characterized in that, It also includes a base (16), and a first fixed seat (14) is fixedly connected to the lower surface of the output motor (1). The bottom of the first fixed seat (14) is fixedly connected to the base (16) by a first screw (15).

3. The energy-saving structure of the heat medium circulation pump for PBT production according to claim 2, characterized in that, The lower surface of the pump body (3) is fixedly connected to a second fixing seat (17), and the bottom of the second fixing seat (17) is fixedly connected to the base (16) by a second screw (18).

4. The energy-saving structure of the heat medium circulation pump for PBT production according to claim 2, characterized in that, A bracket (19) is fixedly connected to the upper surface of the base (16), and the upper end of the bracket (19) is fixedly connected to the cooling sleeve (2).

5. The energy-saving structure of the heat medium circulation pump for PBT production according to claim 1, characterized in that, The right end of the input port (4) and the upper end of the output port (5) are both fixedly connected to a connecting flange (20).

6. The energy-saving structure of the heat medium circulation pump for PBT production according to claim 1, characterized in that, The two ends of the separator sleeve (8) are fixedly connected to the side surface of the output motor (1) and the right inner wall of the cooling sleeve (2), respectively.

7. The energy-saving structure of the heat medium circulation pump for PBT production according to claim 6, characterized in that, The separator sleeve (8) is made of a combination of stainless steel perforated mesh and PTFE coating.

8. The energy-saving structure of the heat medium circulation pump for PBT production according to claim 1, characterized in that, The outer surfaces of the water inlet (10) and the drain outlet (11) are fixedly connected to the cooling sleeve (2), and the outer surfaces of the air inlet (12) and the air outlet (13) are fixedly connected to the cooling sleeve (2).

9. The energy-saving structure of the heat medium circulation pump for PBT production according to claim 1, characterized in that, The outer surface of the rotating shaft (6) is rotatably connected to the cooling sleeve (2).

10. The energy-saving structure of the heat medium circulation pump for PBT production according to claim 9, characterized in that, An oil seal is fitted on one end of the shaft (6) near the blade (7).

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