Heat exchanger structure capable of improving heat exchange efficiency

Abstract

The invention relates to a heat exchanger structure capable of improving heat exchange efficiency, which comprises a support, a lower seal head, a lower tube plate, a barrel, an upper tube plate and an upper seal head, a plurality of shell pass medium outlet tubes are arranged above the barrel, and an effluent collecting ring mechanism is arranged on the inner sides of the plurality of shell pass medium outlet tubes; the outlet water collecting ring mechanism comprises a bottom ring plate, a first vertical ring plate and a plurality of first rib plates, a plurality of shell pass medium inlet pipes are arranged below the barrel body, the inner sides of the shell pass medium inlet pipes are provided with the inlet water distributing ring mechanism, and the inlet water distributing ring mechanism comprises a top ring plate, a second vertical ring plate, a plurality of partition plates and a plurality of second rib plates. A plurality of water outlets are formed in the bottom of the second vertical annular plate, a water inlet buffer space is defined by the top annular plate, the barrel, the second vertical annular plate and the lower pipe plate, the water inlet buffer space is divided into a plurality of areas through the partition plates, each area is communicated with one shell pass medium inlet pipe, and therefore the heat exchange efficiency is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of heat exchangers, and more particularly to a heat exchanger structure that can improve heat exchange efficiency. Background Technology

[0002] A heat exchanger is a device used to transfer heat between two or more fluids at different temperatures. Its main function is to transfer heat from a higher-temperature fluid to a lower-temperature fluid to meet the requirements of process conditions and improve energy efficiency. There are many types of heat exchangers, among which the most classic and widely used is the shell-and-tube heat exchanger. A shell-and-tube heat exchanger mainly consists of a cylindrical shell and an internal tube bundle. One type of fluid flows inside the tubes (tube side), and the other flows between the tubes and the shell (shell side). Please refer to prior art CN223154053U, which discloses the structure of this type of shell-and-tube heat exchanger. This structure includes: a shell and heat exchange tubes disposed within the shell. The shell has a shell-side medium inlet pipe and a shell-side medium outlet pipe welded to it. The drawbacks of this type of heat exchanger are: 1. When the shell-side medium enters from the shell-side medium inlet pipe, it causes impact and vibration to the heat exchanger near the inlet pipe, thus affecting the service life of the heat exchange tubes. When the shell-side medium exchanges heat with the tube-side medium inside the heat exchange tubes and exits through the shell-side medium outlet pipe, the shell-side medium again causes impact and vibration to the outlet pipe, thus affecting its service life. 2. Since only one shell-side medium inlet and one shell-side medium outlet are set, its flow rate is limited, resulting in low heat exchange efficiency.

[0003] Therefore, we considered whether we could improve the structure of the existing heat exchanger to solve the aforementioned technical problems. Summary of the Invention To address the aforementioned problems, the present invention aims to provide a heat exchanger structure that can improve heat exchange efficiency.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a heat exchanger structure that can improve heat exchange efficiency, comprising: a support, a lower end cap, a lower tube sheet, a cylinder, an upper tube sheet, and an upper end cap. Heat exchange tubes are disposed within the cylinder. A plurality of shell-side medium outlet pipes are disposed above the cylinder. A water collection ring mechanism is disposed on the inner side of the plurality of shell-side medium outlet pipes. The water collection ring mechanism comprises: a bottom ring plate, a first vertical ring plate, and a plurality of first stiffening plates. The bottom ring plate is welded to the cylinder and the first vertical ring plate respectively. The first stiffening plates are welded between the first vertical ring plate and the cylinder. The first vertical ring plate, the cylinder, and the bottom ring plate together form an upward-opening water outlet buffer space. The water outlet buffer space is connected to the plurality of shell-side medium outlet pipes. The outlet pipes are interconnected. Several shell-side medium inlet pipes are provided below the cylinder. The inner side of the shell-side medium inlet pipes is provided with a water inlet distribution ring mechanism. The water inlet distribution ring mechanism includes: a top ring plate, a second vertical ring plate, several partition plates, and several second stiffeners. The top ring plate is welded to the cylinder and the second vertical ring plate respectively. The second stiffeners are welded between the cylinder and the second vertical ring plate. The bottom of the second vertical ring plate is welded to the lower tube sheet. Several water outlets are provided at the bottom of the second vertical ring plate. The top ring plate, the cylinder, the second vertical ring plate, and the lower tube sheet surround each other to form a water inlet buffer space. Several partition plates divide the water inlet buffer space into several zones, and each zone is connected to a shell-side medium inlet pipe.

[0005] Preferably, a heat exchanger structure that can improve heat exchange efficiency in the present invention is further configured such that: a plurality of first stiffeners are evenly arranged along the circumferential direction, and the first stiffeners are arranged vertically.

[0006] Preferably, a heat exchanger structure that can improve heat exchange efficiency in the present invention is further configured such that: a plurality of second stiffeners are evenly arranged along the circumferential direction, and the second stiffeners are arranged laterally.

[0007] Preferably, the heat exchanger structure of the present invention that can improve heat exchange efficiency is further configured such that each zone is provided with six evenly arranged water outlets.

[0008] Preferably, the heat exchanger structure of the present invention that can improve heat exchange efficiency is further configured such that the water outlet is rectangular.

[0009] Preferably, a heat exchanger structure in the present invention that can improve heat exchange efficiency is further configured such that: the lower tube sheet is provided with a drain channel.

[0010] Preferably, the heat exchanger structure of the present invention that can improve heat exchange efficiency is further configured such that the number of shell-side medium inlet pipes is six.

[0011] Preferably, the heat exchanger structure of the present invention that can improve heat exchange efficiency is further configured such that the number of shell-side medium outlet pipes is eight.

[0012] Compared with existing technologies, the present invention has the following advantages: The heat exchanger of the present invention, compared with existing heat exchangers, adds a water distribution ring mechanism inside the shell-side medium inlet pipe. This allows the fluid entering from the shell-side medium inlet pipe to be buffered in the water inlet buffer space before entering the equipment through the outlet below. This avoids the fluid directly impacting the heat exchange tubes, extending their service life. Furthermore, the heat exchanger of the present invention, by providing an outlet water collection ring mechanism inside the shell-side medium outlet pipe, allows the fluid after heat exchange to be buffered in the outlet water buffer space before entering the shell-side medium outlet pipe, thus avoiding the fluid directly impacting the shell-side medium outlet pipe and extending its service life. In addition, the present invention also increases the fluid inflow and outflow rate by setting multiple shell-side medium inlet pipes and multiple shell-side medium outlet pipes, thereby improving heat exchange efficiency. Attached Figure Description Figure 1 This is a schematic diagram of the heat exchanger in this invention.

[0013] Figure 2 This is a three-dimensional structural diagram of the water inlet distribution ring in this invention.

[0014] Figure 3 This is a schematic diagram of the main structure of the water inlet distribution ring in this invention.

[0015] Figure 4 This is a top view of the water inlet distribution ring in this invention.

[0016] Figure 5 This is a three-dimensional structural diagram of the water collection ring in this invention.

[0017] Figure 6 This is a schematic diagram of the main structure of the water collection ring in this invention.

[0018] Figure 7 This is a top view of the water collection ring structure in this invention.

[0019] Figures 1 to 7 In the middle section: 1. Support, 2. Lower head, 3. Lower tube sheet, 30. Drainage channel, 4. Shell, 5. Upper tube sheet, 6. Upper head, 7. Heat exchange tube, 8. Shell-side medium outlet pipe, 9. Outlet water collection ring mechanism, 90. Bottom ring plate, 91. First vertical ring plate, 92. First stiffener, 93. Outlet water buffer space, 930. Opening, 10. Shell-side medium inlet pipe, 11. Inlet water distribution ring mechanism, 110. Top ring plate, 111. Second vertical ring plate, 1110. Outlet, 112. Divider plate, 113. Second stiffener, 12. Inlet water buffer space. Detailed Implementation The following detailed description of a heat exchanger structure that can improve heat exchange efficiency according to the present invention is provided through specific embodiments.

[0020] Please see Figures 1 to 7 A heat exchanger structure that can improve heat exchange efficiency includes: a support 1, a lower end cap 2, a lower tube sheet 3, a shell body 4, an upper tube sheet 5, and an upper end cap 6. Heat exchange tubes 7 are disposed inside the shell body 4, and a plurality of shell-side medium outlet pipes 8 are disposed above the shell body 4. In this embodiment, the number of shell-side medium outlet pipes 8 is eight. A water collection ring mechanism 9 is disposed inside the plurality of shell-side medium outlet pipes 8. The water collection ring mechanism 9 includes: a bottom ring plate 90, a first vertical ring plate 91, and a plurality of first stiffening plates 92. The plurality of first stiffening plates 92 are evenly arranged along the circumferential direction, and the first stiffening plates 92 are vertically arranged. The bottom ring plate 90 is welded to the cylinder 4 and the first vertical ring plate 91 respectively. The first stiffening plate 92 is welded between the first vertical ring plate 91 and the cylinder 4. The first vertical ring plate 91, the cylinder 4 and the bottom ring plate 90 together form an upward-facing water outlet buffer space 93. The water outlet buffer space 93 is connected to several shell-side medium outlet pipes 8.

[0021] The lower part of the cylinder 4 is provided with a plurality of shell-side medium inlet pipes 10. In this embodiment, the number of shell-side medium inlet pipes 10 is six. The inner side of the plurality of shell-side medium inlet pipes 10 is provided with a water inlet distribution ring mechanism 11. The water inlet distribution ring mechanism 11 includes: a top ring plate 110, a second vertical ring plate 111, a plurality of partition plates 112 and a plurality of second stiffeners 113. The plurality of second stiffeners 113 are evenly arranged along the circumferential direction and are arranged in a transverse direction. The top ring plate 110 is welded to the cylinder 4 and the second vertical ring plate 111 respectively. The second stiffening plate 113 is welded between the cylinder 4 and the second vertical ring plate 111. The bottom of the second vertical ring plate 111 is welded to the lower tube sheet 3. The bottom of the second vertical ring plate 111 is provided with several water outlets 1110. The top ring plate 110, cylinder 4, second vertical ring plate 111 and lower tube sheet 3 surround to form a water inlet buffer space 12. Several partition plates 112 divide the water inlet buffer space 12 into several zones. Each zone is connected to a shell-side medium inlet pipe 10. Each zone is provided with six evenly arranged water outlets 1110. In this embodiment, the water outlets 1110 are rectangular. The lower tube sheet 3 is provided with a drain channel 30. The function of the drain channel 30 is to drain the fluid of the equipment during maintenance.

[0022] The working principle of the heat exchanger in this invention is as follows: the shell-side medium enters simultaneously from the six shell-side medium inlet pipes 10, and then reaches the six zones divided into the inlet buffer space 12. Then, it enters the equipment evenly through several outlets 1110 at the bottom of the second vertical ring plate 111 and exchanges heat with the tube-side medium in the heat exchange tube 7. After heat exchange, the shell-side medium enters the outlet buffer space 93 through the opening 930 above the outlet buffer space 93, and then exits through the shell-side medium outlet pipe 8.

[0023] In summary, compared with existing heat exchangers, the heat exchanger of this invention adds a water distribution ring mechanism 11 inside the shell-side medium inlet pipe 10. This allows the fluid entering from the shell-side medium inlet pipe 10 to be buffered in the water inlet buffer space 12 before entering the equipment through the lower outlet 1110. This avoids the fluid directly impacting the heat exchange tube 7, extending its service life. Furthermore, the heat exchanger of this invention provides an outlet water collection ring mechanism 9 inside the shell-side medium outlet pipe 8. This allows the heat-exchanged fluid to be buffered in the outlet water buffer space 93 before entering the shell-side medium outlet pipe 8, thus preventing the fluid from directly impacting the shell-side medium outlet pipe 8 and extending its service life. Additionally, this invention increases the fluid flow rate by providing multiple shell-side medium inlet pipes 10 and multiple shell-side medium outlet pipes 8, thereby improving heat exchange efficiency.

[0024] The above embodiments are merely illustrative of the principles and effects of the present invention, as well as some examples of its application, and are not intended to limit the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the inventive concept of the present invention, and these modifications and improvements are all within the scope of protection of the present invention.

Claims

1. A heat exchanger structure that can improve heat exchange efficiency, comprising: The system comprises a support, a lower end cap, a lower tube sheet, a cylinder, an upper tube sheet, and an upper end cap. The cylinder contains heat exchange tubes. The system is characterized by: several shell-side medium outlet pipes located above the cylinder; an outlet water collection ring mechanism located inside each shell-side medium outlet pipe; the outlet water collection ring mechanism comprising: a bottom ring plate, a first vertical ring plate, and several first stiffeners; the bottom ring plate being welded to the cylinder and the first vertical ring plate; and the first stiffeners being welded between the first vertical ring plate and the cylinder; the first vertical ring plate, the cylinder, and the bottom ring plate together forming an upward-opening outlet water buffer space; the outlet water buffer space communicating with the several shell-side medium outlet pipes; and several... A shell-side medium inlet pipe is provided, and a water inlet distribution ring mechanism is provided on the inner side of the shell-side medium inlet pipe. The water inlet distribution ring mechanism includes: a top ring plate, a second vertical ring plate, several partition plates, and several second stiffening plates. The top ring plate is welded to the cylinder and the second vertical ring plate respectively. The second stiffening plates are welded between the cylinder and the second vertical ring plate. The bottom of the second vertical ring plate is welded to the lower tube sheet. The bottom of the second vertical ring plate is provided with several water outlets. The top ring plate, the cylinder, the second vertical ring plate, and the lower tube sheet surround each other to form a water inlet buffer space. Several partition plates divide the water inlet buffer space into several zones, and each zone is connected to a shell-side medium inlet pipe.

2. The heat exchanger structure for improving heat exchange efficiency as described in claim 1, characterized in that: Several first stiffeners are evenly arranged along the circumference, and the first stiffeners are set vertically.

3. The heat exchanger structure for improving heat exchange efficiency as described in claim 1, characterized in that: Several second stiffeners are evenly arranged along the circumference, and the second stiffeners are arranged laterally.

4. The heat exchanger structure for improving heat exchange efficiency as described in claim 1, characterized in that: Each zone has six evenly spaced water outlets.

5. A heat exchanger structure for improving heat exchange efficiency as described in claim 4, characterized in that: The water outlet is rectangular in shape.

6. The heat exchanger structure for improving heat exchange efficiency as described in claim 1, characterized in that: The lower tube sheet is provided with a drainage channel.

7. The heat exchanger structure for improving heat exchange efficiency as described in claim 1, characterized in that: The number of shell-side medium inlet pipes is six.

8. The heat exchanger structure for improving heat exchange efficiency as described in claim 1, characterized in that: The number of shell-side medium outlet pipes is eight.

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