Low-noise flow guide structure of efficient heat exchange equipment

Abstract

The utility model relates to a low-noise flow guide structure of efficient heat exchange equipment, which belongs to the field of heat exchange equipment and comprises a shell, tube plates are welded on two sides of the shell, tube boxes are mounted on one sides, far away from the shell, of the tube plates, a plurality of heat transfer tubes are arranged in the shell, and the heat transfer tubes are arranged in the shell. And the two ends of the heat transfer tubes are fixed in the tube plates on the two sides in a penetrating mode correspondingly. According to the low-noise flow guide structure of the efficient heat exchange equipment, fluid flowing out of the multiple heat transfer pipes enters the corresponding flow guide pipes, the fluid in the multiple heat transfer pipes is gathered in the flow collecting hopper through the flow guide pipes, enters the flow collecting pipes and finally flows out of the coil pipe to enter the pipe box; turbulent flow can be reduced by converging multiple strands of fluid discharged from the heat transfer pipes into a single pipeline, so that the fluid enters the pipe box in a more stable state, noise can be reduced, meanwhile, the flow speed of the fluid flowing into the pipe box can be reduced through the spiral structure of the coil pipe, and noise generated when the fluid enters the pipe box is further reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchange equipment, in particular to a low-noise flow guiding structure of an efficient heat exchange equipment. Background Technique

[0002] The principle of heat exchange equipment is mainly to transfer the heat of the hot fluid to the cold fluid through the heat transfer between the cold and hot fluids, realizing the conservation and efficient utilization of energy. Heat exchange equipment has a wide range of applications in industry. For example, it occupies an important position in industries such as chemical industry, petroleum, power, and food. These devices can transfer heat from the fluid with a higher temperature to the fluid with a lower temperature, making the temperature of the fluid reach the specified index of the process to meet the requirements of various process conditions. This process of transferring heat not only improves the energy utilization rate but also plays a key role in various industrial production links.

[0003] In heat exchange equipment, the fluid usually flows at a relatively high speed. When the fluid enters the header box directly from multiple rows of heat exchange tubes, since the fluid in each pipe will independently impact the header box wall, the impact of these multiple fluid streams will cause energy dispersion, generating turbulence and eddy currents, thus generating relatively large noise. Therefore, a low-noise flow guiding structure of an efficient heat exchange equipment is proposed to solve the above problems. Content of the Utility Model

[0004] In view of the deficiencies of the prior art, the utility model provides a low-noise flow guiding structure of an efficient heat exchange equipment, which has the advantages of reducing the noise generated when the fluid enters the header box from the heat exchange tubes.

[0005] To achieve the above object, the utility model provides the following technical solution: A low-noise flow guiding structure of an efficient heat exchange equipment, including a shell, both sides of the shell are welded with tube sheets, header boxes are installed on the sides of the tube sheets away from the shell, a plurality of heat transfer tubes are arranged inside the shell, both ends of the plurality of heat transfer tubes respectively penetrate and are fixed inside the tube sheets on both sides, and a noise reduction structure is arranged inside the header box.

[0006] The noise reduction structure includes a collecting hopper, a coiled pipe, a confluence pipe, and a guiding pipe. The number of the guiding pipes is multiple. One side of the guiding pipe is fixedly connected to the side wall of the left tube sheet. The plurality of guiding pipes respectively correspond to the pipe orifices of the plurality of heat transfer tubes. A coiled pipe is arranged inside the header box. One end of the coiled pipe is fixedly connected to the confluence pipe. The side of the confluence pipe away from the coiled pipe is fixedly connected to the collecting hopper. One ends of the plurality of guiding pipes away from the tube sheet all extend into the inside of the collecting hopper.

[0007] Further, a sound-absorbing layer is arranged on the inner wall of the collecting hopper, and the collecting hopper is of a funnel-shaped structure.

[0008] Further, the coiled pipe is spiral, and a fixing frame is fixedly connected to the side wall of the coiled pipe, and the fixing frame is fixed on the inner wall of the tube box.

[0009] Further, a first outlet pipe is fixedly penetrated through the bottom of the left tube box, and a second inlet pipe is fixedly penetrated through the top of the right tube box.

[0010] Further, a first inlet pipe is fixedly penetrated through the right side of the top of the housing, and a second outlet pipe is fixedly penetrated through the left side of the bottom of the housing.

[0011] Further, a plurality of baffle plates are arranged on the inner wall of the housing, and the heat transfer tubes penetrate through the inside of the baffle plates and extend to the outside.

[0012] Compared with the prior art, the technical solution of the present application has the following beneficial effects:

[0013] The low-noise diversion structure of the high-efficiency heat exchange device enables the fluid flowing out of a plurality of heat transfer tubes to enter the corresponding diversion tubes. The fluid in a plurality of heat transfer tubes is converged in the collecting hopper through the diversion tubes and enters the confluence pipe, and finally flows out of the coiled pipe and enters the tube box. By converging the multi-strand fluid discharged from a plurality of heat transfer tubes into a single pipeline, the turbulence can be reduced, so that the fluid enters the tube box in a more stable state, and the generation of noise can be reduced. At the same time, the spiral structure of the coiled pipe can slow down the flow rate of the fluid flowing into the tube box, further reducing the noise generated when the fluid enters the tube box. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the present utility model;

[0015] Figure 2 is a cross-sectional view of the collecting hopper of the structure of the present utility model;

[0016] Figure 3 is a three-dimensional view of the coiled pipe of the structure of the present utility model.

[0017] In the figure: 1, housing; 2, first inlet pipe; 3, second inlet pipe; 4, baffle plate; 5, heat transfer tube; 6, tube sheet; 7, tube box; 8, extension tube; 9, collecting hopper; 10, coiled pipe; 11, fixing frame; 12, first outlet pipe; 13, second outlet pipe; 14, confluence pipe; 15, sound-absorbing layer. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0019] Please refer to Figures 1 to 3 Figures 1 to 3 , a low-noise flow guiding structure of an efficient heat exchange device in this embodiment, includes a housing 1. Tube sheets 6 are welded to both sides of the housing 1. Tube boxes 7 are installed on the sides of the tube sheets 6 away from the housing 1. A plurality of heat transfer tubes 5 are arranged inside the housing 1. Both ends of the plurality of heat transfer tubes 5 respectively penetrate and are fixed inside the two side tube sheets 6. A noise reduction structure is arranged inside the tube box 7. A first outlet pipe 12 penetrates and is fixed at the bottom of the left tube box 7, and a second inlet pipe 3 penetrates and is fixed at the top of the right tube box 7.

[0020] The noise reduction structure includes a manifold 9, a coil tube 10, a confluence pipe 14 and a flow guiding pipe 8. The number of the flow guiding pipes 8 is multiple. One side of the flow guiding pipe 8 is fixedly connected to the side wall of the left tube sheet 6. The multiple flow guiding pipes 8 respectively correspond to the pipe orifices of the multiple heat transfer tubes 5. A coil tube 10 is arranged inside the tube box 7. One end of the coil tube 10 is fixedly connected to a confluence pipe 14. The side of the confluence pipe 14 away from the coil tube 10 is fixedly connected to a manifold 9. The ends of the multiple flow guiding pipes 8 away from the tube sheet 6 all extend into the manifold 9. A sound absorption layer 15 is arranged on the inner wall of the manifold 9. The manifold 9 is of a funnel-shaped structure.

[0021] It should be noted that the fluid flowing out of the multiple heat transfer tubes 5 enters the corresponding flow guiding pipes 8. Through the flow guiding pipes 8, the fluid in the multiple heat transfer tubes 5 is converged in the manifold 9 and enters the confluence pipe 14, and finally flows out from the coil tube 10 and enters the tube box 7. By converging the multiple streams of fluid discharged from the multiple heat transfer tubes 5 into a single pipeline, the turbulent flow can be reduced, so that the fluid enters the tube box in a more stable state, and the generation of noise can be reduced.

[0022] It is worth mentioning that the sound absorption layer 15 is made of a sound absorption material, which can be fiber cotton. Through the arrangement of the sound absorption layer 15, a certain sound absorption effect is achieved on the noise generated by the fluid entering the manifold 9.

[0023] Please refer to Figure 3 Figure 3 , in this embodiment, the coil tube 10 is spiral. A fixing frame 11 is fixedly connected to the side wall of the coil tube 10. The fixing frame 11 is fixed on the inner wall of the tube box 7.

[0024] Through the spiral structure of the coil tube 10, the flow rate of the fluid flowing into the tube box 7 can be slowed down, and the noise generated when the fluid enters the tube box 7 can be further reduced.

[0025] In this embodiment, a first inlet pipe 2 penetrates and is fixed at the right side of the top of the housing 1, a second outlet pipe 13 penetrates and is fixed at the left side of the bottom of the housing 1. A plurality of baffle plates 4 are arranged on the inner wall of the housing 1. The heat transfer tubes 5 penetrate through the inside of the baffle plates 4 and extend to the outside.

[0026] It should be noted that the main function of the baffle 4 is to increase the flow velocity of the shell-side fluid and enhance the turbulence degree, thereby improving the heat transfer efficiency. At the same time, the baffle also plays a certain supporting role for the heat exchange tubes, which is beneficial to the installation of the heat exchange tubes.

[0027] The working principle of the above embodiment is as follows: By arranging the flow collector 9, the confluence pipe 14, the coiled pipe 10 and the diversion pipe 8 in the tube sheet 7, the interfaces of the plurality of diversion pipes 8 respectively correspond to the interfaces on the plurality of heat transfer tubes 5, so that the fluid flowing out of the plurality of heat transfer tubes 5 can enter the corresponding diversion pipes 8. The fluid in the plurality of heat transfer tubes 5 is converged in the flow collector 9 through the diversion pipes 8 and enters the confluence pipe 14, and finally flows out from the coiled pipe 10 and enters the tube sheet 7. By converging the multi-strand fluid discharged from the plurality of heat transfer tubes 5 into a single pipeline, the turbulence can be reduced, so that the fluid enters the tube sheet in a more stable state, and the generation of noise can be reduced. At the same time, the spiral structure of the coiled pipe 10 can slow down the flow velocity of the fluid flowing into the tube sheet 7, further reducing the noise generated when the fluid enters the tube sheet 7.

[0028] It should be noted that in this text, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising one..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the element.

[0029] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A low-noise flow guide structure for a high-efficiency heat exchange device, comprising a housing (1), characterized in that: Tube sheets (6) are welded to both sides of the shell (1), and a tube box (7) is installed on the side of the tube sheet (6) away from the shell (1). A plurality of heat transfer tubes (5) are arranged inside the shell (1), and both ends of the plurality of heat transfer tubes (5) are respectively passed through and fixed inside the tube sheets (6) on both sides, and a noise reduction structure is arranged inside the tube box (7); The noise reduction structure comprises a collecting hopper (9), a coil (10), a manifold (14) and a guide tube (8). There are multiple guide tubes (8). One side of the guide tube (8) is fixedly connected to the side wall of the left tube sheet (6). The multiple guide tubes (8) respectively correspond to the pipe openings of the multiple heat transfer tubes (5). The tube box (7) is provided with a coil (10) inside. One end of the coil (10) is fixedly connected to the manifold (14). The side of the manifold (14) away from the coil (10) is fixedly connected to the collecting hopper (9). The ends of the multiple guide tubes (8) away from the tube sheet (6) all extend to the inside of the collecting hopper (9).

2. A low noise flow guide structure for high efficiency heat exchange equipment according to claim 1, characterized in that: A sound absorbing layer (15) is provided on the inner wall of the collecting hopper (9), and the collecting hopper (9) is a funnel-shaped structure.

3. The low noise flow guide structure of a high efficiency heat exchange equipment according to claim 1, characterized in that: The coil (10) is spiral-shaped, and a fixing frame (11) is fixedly connected to the side wall of the coil (10), and the fixing frame (11) is fixed on the inner wall of the pipe box (7).

4. The low noise flow guide structure of a high efficiency heat exchange equipment according to claim 1, characterized in that: A first outlet pipe (12) is fixedly passed through the bottom of the left pipe box (7), and a second inlet pipe (3) is fixedly passed through the top of the right pipe box (7).

5. The low noise flow guiding structure of the high efficiency heat exchange equipment according to claim 1, characterized in that: A first inlet pipe (2) is fixedly passed through the right side of the top of the shell (1), and a second outlet pipe (13) is fixedly passed through the left side of the bottom of the shell (1).

6. The low-noise flow guiding structure of a high-efficiency heat exchange equipment according to claim 1, characterized in that: A plurality of baffles (4) are arranged on the inner wall of the shell (1), and the heat transfer pipe (5) passes through the inside of the baffles (4) and extends to the outside.

Images