Air-cooled finned heat exchanger of stainless steel collecting pipe

Abstract

The utility model belongs to the technical field of heat exchangers, and particularly relates to an air-cooled finned heat exchanger of a stainless steel collecting pipe, which comprises a heat exchanger body, a collecting pipe assembly is arranged in a shell on one side of the heat exchanger, and the collecting pipe assembly comprises a hollow cylindrical through pipe. A plurality of evenly-distributed branch pipes are arranged on the outer side of the through pipe, a partition plate is arranged at the geometric center in the through pipe, a concave groove is formed in the partition plate, a guide pipe designed to be in a V shape is arranged on one side of the through pipe, and a mounting pipe is arranged on one side of the guide pipe. The outer side of the installation pipe is provided with a distributor integrating the confluence function and the flow dividing function, the outer side of the distributor is provided with a connecting pipe, and the portion, located on the outer side of the guide pipe, of the through pipe is provided with reinforcing ribs. The header assembly is reasonable in design and simple in structure, the use strength of the header assembly can be improved, the use requirement is guaranteed, the smoothness of medium circulation in a pipeline is ensured, the practicability of equipment is improved, and the use requirement is met.

Description

Technical Field

[0001] This utility model belongs to the field of heat exchanger technology, and in particular relates to an air-cooled finned heat exchanger with stainless steel manifolds. Background Technology

[0002] A heat exchanger is a device that transfers some of the heat from a hot fluid to a cold fluid; it is also called a heat exchanger. Depending on their different applications, heat exchangers can be further categorized into condensers, evaporators, and coolers. These are all specific forms of heat exchangers, and therefore they are collectively referred to as heat exchangers.

[0003] Air-cooled finned heat exchangers are a type of heat exchange equipment widely used in industrial and commercial fields. Their core feature is the addition of fins to the heat exchange tubes, which greatly increases the contact area with the external fluid and improves heat exchange efficiency. They are widely used in air conditioning, refrigeration, industrial cooling and other fields.

[0004] The core structure of an air-cooled finned heat exchanger includes components such as fins, heat exchange tubes, and manifolds. The manifold, as a key component connecting the heat exchange tubes to external pipelines, undertakes the function of media distribution and collection. Currently, considering that the manifold assembly plays the role of diverting or converging flow, the existing conventional manifold assembly generally includes an L-shaped hollow tube, with multiple diverter tubes evenly distributed on one side of the hollow tube. This method is used to connect the pipelines. However, the media transport effect under this structure is not good. Either the media distribution cannot be well performed, or the media cannot be conveniently converged. This will affect the smoothness of media distribution or collection after the pipeline connection to a certain extent, resulting in poor performance and failure to meet the usage requirements. Utility Model Content

[0005] This utility model addresses the technical problems existing in the use of the aforementioned heat exchangers by proposing a stainless steel manifold air-cooled finned heat exchanger that is reasonably designed, simple in structure, easy to process, and can effectively improve the strength of the manifold assembly, ensure usage requirements, and achieve uniform distribution or smooth flow of the medium according to different usage conditions, ensuring the smooth flow of the medium in the pipeline, improving the practicality of the equipment, and effectively meeting usage needs.

[0006] To achieve the above objectives, the present invention adopts a stainless steel manifold-type air-cooled finned heat exchanger, comprising a heat exchanger body, the heat exchanger body including a shell, a fan disposed on one side of the shell, a heat exchange assembly disposed inside the shell, a manifold assembly disposed inside the shell on one side of the heat exchange assembly, the manifold assembly including a through pipe designed in a hollow cylindrical shape, multiple evenly distributed branch pipes disposed on the outer side of the through pipe, a baffle disposed at the geometric center of the through pipe, the baffle having a concave groove, a V-shaped guide pipe disposed on one side of the through pipe, an installation pipe disposed on one side of the guide pipe, a distributor integrating the functions of converging and splitting flow disposed on the outer side of the installation pipe, a connecting pipe disposed on the outer side of the distributor, and reinforcing ribs disposed on the through pipe located outside the guide pipe.

[0007] Preferably, the dispenser includes a cone-shaped dispensing body with multiple through holes evenly distributed inside, and a triangular-shaped dispensing plate is provided on the outer side of the dispensing body.

[0008] Preferably, a streamlined flow guide block is provided at the geometric center of the guide tube, and an obtuse-angled flow diversion plate is provided inside the through tube. The outer end faces of the multiple flow diversion plates are designed to taper upwards in an arc shape from near the guide tube.

[0009] Preferably, the guide tube has a first conical hole and the mounting tube has a second conical hole, and the inner end face of the guide tube near the first and second conical holes is designed in an arc shape.

[0010] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0011] 1. This utility model provides a stainless steel manifold air-cooled finned heat exchanger. Utilizing a distributor, it pre-divides the input medium during its flow-dividing function, then, with the aid of flow-reducing plates, evenly distributes the medium to each branch pipe, ensuring smooth heat exchange of the heat exchange components. Furthermore, during its flow-merging function, the flow-reducing plates pre-merge the medium, and the distributor rectifies the merged medium, ensuring smooth output after heat exchange. This significantly improves the functionality of the device. The reinforcing ribs enhance the device's strength, increasing its compressive strength and reducing the possibility of damage. This device is rationally designed, simple in structure, easy to manufacture, and effectively improves the strength of the manifold components, ensuring operational requirements. It can achieve uniform distribution or smooth flow of the medium under different usage conditions, ensuring smooth flow of the medium within the pipeline, improving the practicality of the equipment, and effectively meeting usage needs. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the structure of a stainless steel manifold air-cooled finned heat exchanger.

[0014] Figure 2 This is a schematic diagram of part of the internal structure of a stainless steel manifold air-cooled finned heat exchanger.

[0015] Figure 3 This is a schematic diagram of the manifold assembly provided by this utility model;

[0016] Figure 4 This is a structural schematic diagram of the manifold assembly provided by this utility model from another perspective.

[0017] Figure 5 This is a side view of the manifold assembly provided by this utility model;

[0018] Figure 6 This is a partial internal structure diagram of the manifold assembly provided by this utility model;

[0019] Figure 7 A partial front view of the internal structure of the manifold assembly provided by this utility model;

[0020] In the above figures, 1 is the shell; 2 is the fan; 3 is the heat exchange assembly; 4 is the manifold assembly; 5 is the through pipe; 51 is the diversion plate; 6 is the branch pipe; 7 is the baffle plate; 71 is the concave groove; 8 is the guide pipe; 81 is the guide block; 82 is the first conical hole; 9 is the mounting pipe; 91 is the second conical hole; 10 is the distributor; 101 is the distributor body; 1011 is the through hole; 102 is the distribution plate; 11 is the connecting pipe; and 12 is the reinforcing rib. Detailed Implementation

[0021] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0023] Examples, such as Figures 1 to 7As shown, a stainless steel manifold-type air-cooled finned heat exchanger includes a heat exchanger body, which includes a shell 1. A fan 2 is installed on one side of the shell 1, and a heat exchange assembly 3 is installed inside the shell 1. The above-mentioned devices and equipment are all based on the basic structure of existing air-cooled finned heat exchangers, and the connections between the various components are known to those skilled in the art and will not be elaborated further. To ensure the good functionality of the manifold assembly 4 in the heat exchanger body, a manifold assembly 4 is installed inside the shell 1 on one side of the heat exchange assembly 3. The manifold assembly 4 includes a hollow cylindrical through-pipe 5, and multiple evenly distributed manifolds are installed on the outer side of the through-pipe 5. The branch pipe 6, wherein all components of the manifold assembly 4 are made of stainless steel. Conventional manifold structures in the prior art often use copper, aluminum, or carbon steel. While copper and aluminum have good corrosion resistance, they are expensive and lack strength, making them prone to deformation over long-term use. Carbon steel is inexpensive, but it is prone to rusting in humid or corrosive environments, leading to leakage risks and shortening its service life. Frequent replacement of manifolds due to corrosion or deformation significantly increases maintenance costs. Furthermore, rust or scaling reduces the flow cross-sectional area of ​​the manifold, lowering heat exchange efficiency. Therefore, in this embodiment, the manifold assembly 4 made of stainless steel exhibits superior performance in humid, acidic, or salt spray environments. Excellent corrosion resistance extends its service life to a certain extent. Meanwhile, high compressive strength reduces the risk of deformation due to pressure fluctuations, saving maintenance costs. Thus, the stainless steel manifold assembly 4 balances corrosion resistance and economy, fully meeting usage requirements. For connections: branch pipes 6 and heat exchange components 3 are connected by threads or welding. When welding is used, the weld seam must be coated with high-temperature resistant sealant to reduce leakage risk. Furthermore, considering the compatibility of connections between components, at the connection between the stainless steel manifold assembly 4 and aluminum finned or copper heat exchange tubes, anti-corrosion gaskets or anti-corrosion coatings can be added for isolation to avoid electrochemical corrosion. In short, a baffle 7 is set at the geometric center of the through pipe 5, and a concave groove 71 is opened in the baffle 7. A V-shaped guide pipe 8 is set on one side of the through pipe 5. Specifically, the V-shaped guide pipe 8 is designed as a three-way connector. One outlet is connected to the connecting pipe 11 via the installation pipe 9, and the other two outlets are symmetrically connected to the through pipe 5 about the baffle 7. The concave groove 71 opened in the baffle 7 can provide convenient conditions for the flow of the medium. That is to say, the area in the through pipe 5 connected to the branch pipe 6 is divided into upper and lower areas by the baffle 7, which to a certain extent realizes the rational distribution of the medium transportation process, thereby ensuring the smooth operation of heat exchange.An installation pipe 9 is provided on one side of the guide pipe 8. A distributor 10, integrating confluence and diversion functions, is located on the outside of the installation pipe 9. A connecting pipe 11 is located on the outside of the distributor 10. The distributor 10 and connecting pipe 11 can be connected to the guide pipe 8 via the installation pipe 9 using threaded connections or welding, ensuring the stability of the equipment configuration. During use: during the diversion process, the medium is input through the connecting pipe 11, pre-diverted by the distributor 10, and then evenly transported to each branch pipe 6 under the action of the diversion plate 51, ensuring the heat exchange operation of the heat exchange component 3. During the smooth operation of the confluence process, the medium is transported through the branch pipe 6 to the through pipe 5 for pre-convergence. Then, the distributor 10 rectifies the confluenced medium to ensure the smooth output of the medium after heat exchange, which greatly improves the functionality of the device and optimizes the medium flow effect. At the same time, a single manifold assembly 4 can be installed without differentiation, making it suitable for various working conditions and highly adaptable. The through pipe 5 located outside the guide pipe 8 is equipped with reinforcing ribs 12, which can improve the strength of the device to a certain extent, thereby increasing its compressive strength and reducing the possibility of damage.

[0024] In the above process: the distributor 10 can pre-divide the input medium when performing the diversion function, and then, under the action of the diversion plate 51, evenly deliver the medium to each branch pipe 6, ensuring the smooth operation of the heat exchange component 3. Moreover, when performing the confluence function, the diversion plates 51 first pre-converge the medium, and then the distributor 10 rectifies the converged medium, ensuring the smooth output of the medium after heat exchange, which greatly improves the functionality of the device. The reinforcing ribs 12 can improve the strength of the device to a certain extent, thereby increasing its compressive strength and reducing the possibility of damage. This device is reasonably designed, simple in structure, easy to process, and can effectively improve the strength of the manifold component 4, ensuring the use requirements. It can also achieve uniform distribution or smooth confluence of the medium according to different usage conditions, ensuring the smooth flow of the medium in the pipeline, improving the practicality of the equipment, and effectively meeting the use requirements.

[0025] To ensure good performance when the medium is split or merged at the connecting pipe 11, the distributor 10 includes a cone-shaped distribution body 101. One side of the distribution body 101 has a conical groove, meaning the distribution body 101 is annularly cone-shaped. Multiple through holes 1011 are evenly distributed inside the distribution body 101. A triangular distribution plate 102 is provided on the outer side of the distribution body 101. Specifically, when the manifold assembly 4 performs its splitting function, the medium input through the connecting pipe 11 is first separated to a certain extent by the distribution plate 102, thus allowing the medium to flow smoothly. The medium is discharged through different through holes 1011. Of course, the through holes 1011 are divided into upper and lower groups, which can correspond to the upper and lower parts of the pipe 5 respectively, so as to ensure the rationality of the medium discharge. When the manifold assembly 4 performs the function of converging, the medium is first collected through the guide pipe 8, and then flows out through the through hole 1011 of the distributor 101, and completes the converging in the connecting pipe 11 for output. In this way, the distributor 10 can perform different functions in different application scenarios, especially ensuring the smoothness of the medium transportation process and greatly improving the practicality of the device.

[0026] To ensure the efficient diversion and convergence of the guide pipe 8, a streamlined guide block 81 is installed at the geometric center of the guide pipe 8. Obtuse-angled diversion plates 51 are installed inside the through pipe 5. The outer ends of the multiple diversion plates 51 are arc-shaped upwards from near the guide pipe 8. In other words, the diversion plates 51 are evenly distributed on both sides from near the geometric center of the through pipe 5, and their inclined outer ends are arc-shaped from the center to both sides. When diverting the flow, this design allows the concentrated input medium to be evenly distributed and transported towards the space between adjacent diversion plates 51, ensuring uniform medium distribution. When converging the flow, the medium input through multiple branch pipes 6 is collected by the action of adjacent diversion plates 51. Due to the placement of the multiple diversion plates 51, the medium converges towards the center of the through pipe 5, thus completing the diversion process. For the confluence processing of the medium, the kinetic energy is strong. Specifically, when the manifold assembly 4 performs the diversion function, the medium is input from the connecting pipe 11 and flows through the distributor 10 to the guide pipe 8. Under the action of the guide block 81, the input medium can be separated, especially into two paths, that is, they flow from both sides of the partition 7. After the medium is delivered into the through pipe 5, it is uniformly distributed by the establishment of each diversion plate 51, and is then discharged through each branch pipe 6 and delivered to the heat exchange assembly 3. Conversely, when the manifold assembly 4 performs the confluence function, the medium is input from multiple branch pipes 6 and converges towards the position of the guide pipe 8 under the action of the diversion plate 51. When the medium is output and passes through the guide block 81, it can block the medium at the convergence point to a certain extent, avoiding the possibility of mutual disturbance of the converged medium, thus providing the prerequisite for the confluence output of the medium and ensuring the use effect.

[0027] To further improve the rationality of the device setup, especially to ensure the media transport process, a first conical hole 82 is provided in the guide pipe 8, and a second conical hole 91 is provided in the mounting pipe 9. The inner end face of the guide pipe 8 near the first conical hole 82 and the second conical hole 91 is designed with an arc shape. The above structure ensures the tight fit between the guide pipe 8 and the mounting pipe 9, preventing media leakage. On the other hand, this design can improve the media output process to a certain extent, that is, accelerate its processing, improve its smoothness, and adapt to the working process of diversion and convergence, providing convenient conditions for the heat exchange of the equipment and meeting the usage requirements.

[0028] 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 other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A stainless steel manifold-type air-cooled finned heat exchanger, comprising a heat exchanger body, the heat exchanger body including a shell, a fan disposed on one side of the shell, and a heat exchange assembly disposed inside the shell, characterized in that, A manifold assembly is provided inside the housing on one side of the heat exchange component. The manifold assembly includes a through pipe with a hollow cylindrical design. Multiple evenly distributed branch pipes are provided on the outside of the through pipe. A baffle is provided at the geometric center of the through pipe. A concave groove is opened in the baffle. A V-shaped guide pipe is provided on one side of the through pipe. An installation pipe is provided on one side of the guide pipe. A distributor integrating the functions of converging and splitting flow is provided on the outside of the installation pipe. A connecting pipe is provided on the outside of the distributor. Reinforcing ribs are provided on the through pipe located outside the guide pipe.

2. The air-cooled finned heat exchanger with stainless steel manifolds according to claim 1, characterized in that, The dispenser includes a cone-shaped dispensing body with multiple through holes evenly distributed inside, and a triangular-shaped dispensing plate on the outer side of the dispensing body.

3. A stainless steel manifold-type air-cooled finned heat exchanger according to claim 2, characterized in that, A streamlined flow guide block is provided at the geometric center of the guide tube, and an obtuse-angled flow diversion plate is provided inside the through tube. The outer end faces of the multiple flow diversion plates are designed to taper upwards in an arc shape from near the guide tube.

4. A stainless steel manifold-type air-cooled finned heat exchanger according to claim 3, characterized in that, The guide tube has a first conical hole, and the mounting tube has a second conical hole. The inner end face of the guide tube near the first and second conical holes is designed in an arc shape.

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