A pure light tube air cooler tube bundle that can slow down the precipitation of fluoride polymers

Abstract

This utility model relates to the field of air cooler technology, specifically disclosing a pure tube air cooler tube bundle that can slow down the precipitation of fluoride polymers. It includes a tube bundle unit and a frame base for mounting the tube bundle unit. The tube bundle unit includes mounting end plates symmetrically arranged at both ends of the frame base, and a first tube bundle and a second tube bundle mounted between the mounting end plates and arranged vertically downwards in sequence. One end of the first tube bundle has an inlet tube box, and one end of the second tube bundle has an outlet tube box on the same side as the inlet tube box. A transition connector for connecting the first tube bundle and the second tube bundle is provided between the end of the first tube bundle away from the inlet tube box and the end of the second tube bundle away from the outlet tube box. Both the first and second tube bundles are composed of several heat exchange tubes. The frame base is also provided with fixing clamps for fixing the first and second tube bundles. This solves the problem that in traditional air coolers, the internal temperature of the tube bundle cools rapidly during operation, easily causing the cooled fluoride inside the tube bundle to precipitate polymers, resulting in tube bundle blockage and affecting the normal operation of the air cooler.

Description

Technical Field

[0001] This application relates to the field of air cooler technology, and specifically discloses a pure tube air cooler tube bundle that can slow down the precipitation of fluoride polymers. Background Technology

[0002] Air coolers are heat exchangers that use air to cool hot fluids. In the petrochemical and other fields, as the demand for energy-saving and water-saving equipment such as dry heat exchangers and evaporative heat exchangers gradually increases, the requirements for the use of heat exchanger tubes are also becoming more and more stringent.

[0003] Existing air coolers typically use finned heat exchangers, which offer excellent cooling performance and rapid cooling speed. In chemical production processes, air coolers are commonly used to cool high-temperature gaseous fluorides. However, when cooling high-temperature fluorides to low temperatures, large temperature fluctuations within the tube side of the air cooler bundle can cause rapid temperature changes, leading to polymer precipitation of the cooled fluorides within the tube bundle. This can result in internal blockage of the air cooler tube bundle, affecting its normal operation and reducing its cooling efficiency. Therefore, the inventors have developed a pure bare tube air cooler bundle that can mitigate the polymer precipitation of fluorides, thus solving the aforementioned problem. Utility Model Content

[0004] The purpose of this invention is to solve the problem that when the internal temperature of the tube bundle of a traditional air cooler drops rapidly during operation, it can easily cause the cooled fluoride inside the tube bundle to precipitate polymer, resulting in tube blockage and affecting the normal operation of the air cooler.

[0005] To achieve the above objectives, the basic solution of this utility model provides a pure tube air cooler tube bundle that can slow down the precipitation of fluoride polymers, including a tube bundle unit and a frame base for mounting the tube bundle unit. The tube bundle unit includes mounting end plates symmetrically arranged at both ends of the frame base and a first tube bundle and a second tube bundle mounted between the mounting end plates and arranged vertically downwards in sequence. One end of the first tube bundle is provided with an inlet tube box, and one end of the second tube bundle is provided with an outlet tube box on the same side as the inlet tube box. A transition connector for connecting the first tube bundle and the second tube bundle is provided between the end of the first tube bundle away from the inlet tube box and the end of the second tube bundle away from the outlet tube box. Both the first tube bundle and the second tube bundle are composed of several heat exchange tubes. The frame base is also provided with fixing clamps for fixing the first tube bundle and the second tube bundle.

[0006] Furthermore, a first frame is installed on the frame base between the mounting end plates for supporting the first tube bundle, and a second frame is also installed on the frame base between the mounting end plates for fixing the second tube bundle.

[0007] Furthermore, the fixing clamp includes a first clamp for fixing the first tube bundle and a second clamp for fixing the second tube bundle.

[0008] Furthermore, the first tube clamp includes a first support base detachably mounted on the bottom of the first frame and used to support the bottom of the heat exchange tube of the first tube bundle, and a first clamping block hinged to one end of the first support base and used to clamp the first tube bundle on the first support base, wherein the other end of the first clamping block is detachably connected to the other end of the first support base.

[0009] Furthermore, the second tube clamp includes a second support base detachably mounted on the bottom of the second frame and used to support the bottom of the heat exchange tube of the second tube bundle, and a second clamping block hinged to one end of the second support base and used to clamp the second tube bundle on the second support base, the other end of the second clamping block being detachably connected to the other end of the second support base.

[0010] Furthermore, the transition connector includes a first transition tube box detachably installed at the end of the first tube bundle away from the inlet tube box, a second transition tube box detachably installed at the end of the second tube bundle away from the outlet tube box, and a tube box connecting pipe detachably installed between the first transition tube box and the second transition tube box. The first transition tube box and the second transition tube box are also detachably connected to the mounting end plate, respectively.

[0011] Furthermore, the inlet tube box, outlet tube box, first transition tube box, and second transition tube box can all be detachably fitted with tube box end caps at the ends furthest from the heat exchange tube, and the outer side of each tube box end cap is also provided with several mounting lugs.

[0012] Furthermore, both the outer surfaces of the first and second tube bundles are provided with an anti-corrosion layer.

[0013] The principle and effect of this solution are as follows: 1. Compared with the prior art, this utility model uses heat exchange tubes with good heat exchange effect as the tube bundle of the air cooler to cool fluorides. Compared with the traditional high-speed heat exchange finned tube bundle, the pure tube bundle slows down the cooling heat exchange rate of the air cooler, so that the temperature change rate of the fluorides in the heat exchange tube is reduced. While ensuring the heat exchange requirements of the air cooler, it avoids the precipitation of polymers from the fluorides inside the heat exchange tube due to the sudden temperature change. This prevents the polymer from precipitating and remaining in the heat exchange tube bundle, causing blockage inside the tube bundle, ensuring the normal operation of the air cooler, improving the operating efficiency of the air cooler. The setting of transition connectors makes the installation between structures more consistent and improves the connection and use convenience between heat exchange tubes. It solves the problem that the sudden temperature drop inside the tube bundle during the operation of traditional air coolers easily causes the fluoride cooling medium inside the tube bundle to precipitate polymers, causing tube bundle blockage and affecting the normal operation of the air cooler.

[0014] 2. Compared with the prior art, the present invention facilitates the installation and fixing of each heat exchange tube bundle by setting a first frame and a first tube clamp and a second frame and a second tube clamp. By binding and limiting the tube bundles in groups, the structural compactness of each tube bundle is improved, making the tube bundle structure of each air cooler more stable during operation.

[0015] 3. Compared with the prior art, this utility model provides end caps at the outer ends of the inlet tube box, outlet tube box, first transition tube box, and second transition tube box, making the outer ends of each tube box detachable and easy to disassemble, facilitating regular inspection of the interior of each tube box. At the same time, by installing lifting lugs on the outside of each tube box end cap, the entire air cooler tube bundle is easier to lift and move during installation without manual operation, improving installation efficiency and making the installation of the air cooler tube bundle safer. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This illustration shows a front view of the structure of a pure tube air cooler bundle that can slow down the precipitation of fluoride polymers according to an embodiment of this application; Figure 2 A cross-sectional schematic diagram of the heat exchange tube of a pure tube air cooler tube bundle that can slow down the precipitation of fluoride polymers, according to an embodiment of this application, is shown. Figure 3 This application shows Figure 1 Enlarged view of part A of the structure. Detailed Implementation

[0018] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0019] The reference numerals in the accompanying drawings include: tube bundle unit 1, frame base 2, mounting end plate 3, tube box connecting pipe 4, first tube bundle 5, second tube bundle 6, inlet tube box 7, outlet tube box 8, heat exchange tube 9, first tube clamp 10, first frame 11, second frame 12, first transition tube box 13, second transition tube box 14, second tube clamp 15, tube box end cap 16, mounting lug 17, and end connecting plate 18.

[0020] A pure light tube air cooler tube bundle that can slow down the precipitation of fluoride polymers, implemented for example Figure 1 As shown: The system includes a tube bundle unit 1 and a frame base 2 for mounting the tube bundle unit 1. The tube bundle unit 1 includes mounting end plates 3 symmetrically arranged at both ends of the frame base 2, and a first tube bundle 5 and a second tube bundle 6 mounted between the mounting end plates 3 and arranged vertically downwards in sequence. One end of the first tube bundle 5 has an inlet tube box 7, and one end of the second tube bundle 6 has an outlet tube box 8 on the same side as the inlet tube box 7. A transition connector for connecting the first tube bundle 5 and the second tube bundle 6 is provided between the end of the first tube bundle 5 away from the inlet tube box 7 and the end of the second tube bundle 6 away from the outlet tube box 8. Figure 1 and Figure 2 As shown, both the first tube bundle 5 and the second tube bundle 6 are composed of a large number of heat exchange tubes 9. The frame base 2 is also equipped with fixing clamps for fixing the first tube bundle 5 and the second tube bundle 6. The complete air cooler tube bundle structure is formed by the sequential connection between the inlet tube box 7, the first tube bundle 5, the transition connector, the second tube bundle 6 and the outlet tube box 8. Then, the fixing clamps, the mounting end plate 3 and the frame base 2 are used to fix the first tube bundle 5 and the second tube bundle 6 as individual structures and as a whole.

[0021] Among them, such as Figure 1 As shown, a first frame 11 is mounted on the frame base 2, located between the mounting end plates 3, to support the first tube bundle 5. A second frame 12 is also mounted on the frame base 2, located between the mounting end plates 3, to fix the second tube bundle 6. The top of the second frame 12 is connected to the first frame 11 by, but not limited to, welding, and the bottom of the second frame 12 is connected to the frame base 2 by, but not limited to, welding. By supporting and fixing the first tube bundle 5 and the second tube bundle 6 with the first frame 11 and the second frame 12 respectively, the first tube bundle 5 and the second tube bundle 6 are each an individual unit, and the two individual units can be welded together to form a single unit.

[0022] Among them, such as Figure 1 As shown, the fixing clamp includes a first clamp 10 for fixing the first tube bundle 5 and a second clamp 15 for fixing the second tube bundle 6. By setting the first clamp 10 and the second clamp 15 to clamp and fix the first tube bundle 5 and the second tube bundle 6 respectively, it is convenient to fix each group of tube bundles separately, thereby making the disassembly and replacement operations more convenient.

[0023] Among them, such as Figure 1As shown, the first tube clamp 10 includes a first support base detachably mounted on the bottom of the first frame 11 for supporting the bottom of the heat exchange tube 9 of the first tube bundle 5, and a first clamping block hinged to one end of the first support base for clamping the first tube bundle 5 onto the first support base. The other end of the first clamping block is detachably connected to the other end of the first support base. By fixing the first support base to the first frame 11, structural support is provided for the overall structure of the first tube bundle 5. Then, the first clamping block is used to wrap and clamp the upper part of the first tube bundle 5 on the first support base, thereby achieving the purpose of fixing the side of the first tube bundle 5.

[0024] Among them, such as Figure 1 As shown, the second tube clamp 15 includes a second support base detachably mounted on the bottom of the second frame 12 for supporting the bottom of the heat exchange tube 9 of the second tube bundle 6, and a second clamping block hinged to one end of the second support base for clamping the second tube bundle 6 onto the second support base. The other end of the second clamping block is detachably connected to the other end of the second support base. By fixing the second support base to the second frame 12, structural support is provided for the overall structure of the second tube bundle 6. Then, the second clamping block is used to wrap and clamp the upper part of the second tube bundle 6 on the second support base, thereby achieving the purpose of fixing the side of the second tube bundle 6.

[0025] Among them, such as Figure 1 As shown, the transition connector includes a first transition tube box 13 detachably installed at the left end of the first tube bundle 5 away from the inlet tube box 7, a second transition tube box 14 detachably installed at the left end of the second tube bundle 6 away from the outlet tube box 8, and a tube box connecting pipe 4 detachably installed between the first transition tube box 13 and the second transition tube box 14. The first transition tube box 13 and the second transition tube box 14 are also detachably connected to the mounting end plate 3. The inlet tube box 7, the outlet tube box 8, the first transition tube box 13, and the second transition tube box 14 are, but are not limited to, detachable tube boxes, D-type tube boxes, or threaded plug tube boxes. The shape of the inlet tube box 7 and the first transition tube box 13 is, but is not limited to, any one of circular, elliptical, square, and rectangular. The shape of the tube box connecting pipe 4 is, but is not limited to, circular or elliptical and has a certain degree of flexibility. By using the first transition tube box 13, the tube box connecting pipe 4, and the second transition tube box 14, which are sequentially connected between the first tube bundle 5 and the second tube bundle 6 located in the upper and lower layers, the continuity and circulation of heat exchange are achieved.

[0026] Among them, such as Figure 3As shown, the inlet tube box, outlet tube box, first transition tube box, and second transition tube box all have detachable end caps installed at the ends furthest from the heat exchange tubes. Multiple symmetrical lifting lugs are also provided on the outer side of each end cap. Each of the inlet tube box, outlet tube box, first transition tube box, and second transition tube box has an end connecting plate on its outer port. Multiple first connecting through holes are evenly distributed on the end connecting plate, and multiple second connecting through holes are evenly distributed on the surface of the end cap. The first and second connecting through holes are fixedly connected by bolts. By installing a detachable end cap at the outer end of each tube box, it is easy to disassemble and inspect the interior of the corresponding tube box at any time, ensuring normal operation of the tube box. The lifting lugs facilitate hoisting during maintenance of the entire tube bundle, allowing for the movement and installation of the air cooler tube bundle.

[0027] As shown in Figure 1, the outer surfaces of both the first tube bundle 5 and the second tube bundle 6 are provided with anti-corrosion layers. These anti-corrosion layers include, but are not limited to, hot-dip galvanizing, painting, or electroplating. By providing anti-corrosion layers to the outer surfaces of the first tube bundle 5 and the second tube bundle 6, the external structure of the heat exchange tube 9 is protected against corrosion.

[0028] In the specific implementation of this utility model, the first tube bundle 5 and the second tube bundle 6 are first fixed on the first frame 11 and the second frame 12 respectively by the first tube clamp 10, the second tube clamp 15 and the mounting end plate 3. The first tube bundle 5 is placed on the first support seat of the first frame 11, so that the free end of the first clamp block is connected and fixed to the first support seat. The second tube bundle 6 is placed on the second support seat of the second frame 12, so that the free end of the second clamp block is connected to the second support seat. Then, the bottom side of the first tube bundle 5 is welded and installed to the first frame 11, and the bottom side of the second tube bundle 6 is welded and installed to the second frame 12. Then, the overall structure of the first frame 11 and the first tube bundle 5 is welded and installed to the overall structure of the second frame 12 and the second tube bundle 6. Finally, the entire structure of the first frame 11 and the second frame 12 is installed on the frame base 2 and both ends are welded and fixed to the mounting end plate 3 respectively. Next, the inlet tube box 7 is installed at the right end of the first tube bundle 5, the outlet tube box 8 is installed at the right end of the second tube bundle 6, the first transition tube box 13 is installed at the left end of the first tube bundle 5, and the second transition tube box 14 is installed at the left end of the second tube bundle 6. The first transition tube box 13 and the second transition tube box 14 are then connected via the tube box connecting pipe 4. Finally, an anti-corrosion layer is applied to the surfaces of the first tube bundle 5 and the second tube bundle 6, thus completing the assembly and installation of the overall air cooler tube bundle. This pure bare tube type air cooler tube bundle has a moderate cooling rate, resulting in a relatively stable temperature change in the cooling environment of the fluoride. Due to the small temperature difference change within the heat exchange bare tube 9, the precipitation of polymers from the fluoride is greatly reduced.

[0029] Compared with existing technologies, this invention uses heat exchange tubes 9, which have excellent heat exchange performance, as the tube bundle of the air cooler to cool fluorides. Compared with traditional high-speed heat exchange finned tube bundles, the pure tube bundle slows down the cooling and heat exchange rate of the air cooler, thus reducing the rate of temperature change of the fluorides inside the heat exchange tubes 9. While ensuring the heat exchange requirements of the air cooler, this avoids the precipitation of polymers from the fluorides inside the heat exchange tubes 9 due to sudden temperature changes. This prevents polymer precipitation and retention in the heat exchange tube bundle, which can cause blockages and ensure the normal operation of the air cooler, improving its operating efficiency. The addition of transition connectors makes the installation between structures more coherent and improves the convenience of connecting and using the heat exchange tubes 9. This solves the problem that in traditional air coolers, sudden temperature drops inside the tube bundle can easily cause the cooled fluorides inside the tube bundle to precipitate polymers, leading to tube blockages and affecting the normal operation of the air cooler.

[0030] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A pure tube air cooler tube bundle that can slow down the precipitation of fluoride polymers, characterized in that: The device includes a tube bundle unit and a frame base for mounting the tube bundle unit. The tube bundle unit includes mounting end plates symmetrically arranged at both ends of the frame base and a first tube bundle and a second tube bundle mounted between the mounting end plates and arranged vertically downwards in sequence. One end of the first tube bundle is provided with an inlet tube box, and one end of the second tube bundle is provided with an outlet tube box on the same side as the inlet tube box. A transition connector for connecting the first tube bundle and the second tube bundle is provided between the end of the first tube bundle away from the inlet tube box and the end of the second tube bundle away from the outlet tube box. Both the first tube bundle and the second tube bundle are composed of several heat exchange tubes. The frame base is also provided with fixing clamps for fixing the first tube bundle and the second tube bundle.

2. The pure tube air cooler tube bundle that can slow down the precipitation of fluoride polymers according to claim 1, characterized in that, A first frame is installed on the frame base, located between the mounting end plates, for supporting the first tube bundle. A second frame is also installed on the frame base, located between the mounting end plates, for fixing the second tube bundle.

3. The pure tube air cooler tube bundle that can slow down the precipitation of fluoride polymers according to claim 1, characterized in that, The fixing clamp includes a first clamp for fixing a first tube bundle and a second clamp for fixing a second tube bundle.

4. The tube bundle of a pure light tube air cooler that can slow down the precipitation of fluoride polymers according to claim 3, characterized in that, The first tube clamp includes a first support base detachably mounted on the bottom of the first frame and used to support the bottom of the heat exchange tube of the first tube bundle, and a first clamping block hinged to one end of the first support base and used to clamp the first tube bundle on the first support base. The other end of the first clamping block is detachably connected to the other end of the first support base.

5. The tube bundle of a pure light tube air cooler that can slow down the precipitation of fluoride polymers according to claim 4, characterized in that, The second tube clamp includes a second support base detachably mounted on the bottom of the second frame and used to support the bottom of the heat exchange tube of the second tube bundle, and a second clamping block hinged to one end of the second support base and used to clamp the second tube bundle on the second support base. The other end of the second clamping block is detachably connected to the other end of the second support base.

6. The tube bundle of a pure light tube air cooler that can slow down the precipitation of fluoride polymers according to claim 5, characterized in that, The transition connector includes a first transition tube box that can be detachably installed at the end of the first tube bundle away from the inlet tube box, a second transition tube box that can be detachably installed at the end of the second tube bundle away from the outlet tube box, and a tube box connecting pipe that can be detachably installed between the first transition tube box and the second transition tube box. The first transition tube box and the second transition tube box are also detachably connected to the mounting end plate, respectively.

7. The pure tube air cooler tube bundle that can slow down the precipitation of fluoride polymers according to claim 6, characterized in that, The inlet tube box, outlet tube box, first transition tube box, and second transition tube box can all be detachably fitted with tube box end caps at the ends furthest from the heat exchange tube. Several mounting lugs are also provided on the outer side of each tube box end cap.

8. The pure tube air cooler tube bundle that can slow down the precipitation of fluoride polymers according to claim 1, characterized in that, The outer surfaces of both the first and second tube bundles are provided with an anti-corrosion layer.

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