A double-cylinder cast housing of a heat exchanger

Abstract

The utility model relates to heat exchange equipment technical field discloses a double cylinder casting shell of heat exchanger, including heat exchanger cylinder body one and heat exchanger cylinder body two, heat exchanger cylinder body one bottom intercommunication is provided with connecting pipe no.

Description

Technical Field

[0001] This utility model belongs to the technical field of heat exchange equipment, specifically, it relates to a double-cylinder casting shell for a heat exchanger. Background Technology

[0002] Shell-and-tube heat exchangers are a widely used heat exchange device in industries such as chemical, petroleum, HVAC, and power.

[0003] Traditional twin-cylinder structures typically employ two manufacturing processes: one is to connect prefabricated main and branch pipes by welding; the other is to manufacture the main and auxiliary cylinders separately and then connect them using flanges and bolts. These connection methods have several drawbacks. First, welding creates circumferential welds at the joints, which are prone to stress concentration. Under alternating loads and media corrosion, these areas may develop fatigue and corrosion cracks, posing a leakage risk and impacting equipment safety. Second, the thermal deformation and internal stress generated during welding affect the geometric accuracy and dimensional stability of the shell. Third, flange and bolt connections require a large number of bolts and washers, significantly increasing the number of parts and manufacturing costs, and are also inconvenient for personnel to disassemble and maintain the heat exchanger. Therefore, we propose a twin-cylinder cast shell for the heat exchanger. Utility Model Content

[0004] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows: A double-cylinder casting shell for a heat exchanger includes a heat exchanger cylinder one and a heat exchanger cylinder two. A connecting pipe one is connected to the bottom end of the heat exchanger cylinder one, and a connecting pipe two is connected to the top end of the heat exchanger cylinder two. A connecting plate one is installed at the bottom end of the connecting pipe one, and a connecting plate two is installed at the top end of the connecting pipe two. A connecting mechanism is provided between the connecting plate one and the connecting plate two. The connecting mechanism includes a retaining frame and a retaining plate. A groove is formed between the outer walls of the connecting plate one and the connecting plate two, and the groove contains... The wall has a first slot, and the card frame is engaged in the first slot. A fixed shaft is installed on the outer wall of the card frame. A shaft hole is opened on the card plate, and the card plate is movably sleeved on the outer wall of the fixed shaft through the shaft hole. A torsion spring is installed between the inner wall of the shaft hole and the outer wall of the fixed shaft. The inner wall of the groove has two second slots on both sides, and the card plate is engaged in the second slot. A baffle is installed at one end of the fixed shaft. A positioning post is installed at the bottom end of the first connecting plate. A positioning groove is opened at the top end of the second connecting plate, and the positioning post is inserted into the positioning groove.

[0005] In a preferred embodiment of this utility model, both the first heat exchanger body and the second heat exchanger body are made of stainless steel (CFM).

[0006] In a preferred embodiment of this utility model, a sealing gasket is provided between the first connecting plate and the second connecting plate. The sealing gasket is installed on the top of the second connecting plate. By providing the sealing gasket, the tightness of the connection between the first connecting plate and the second connecting plate can be increased, thereby improving the sealing performance.

[0007] In a preferred embodiment of this utility model, a sealing ring plate is installed at the bottom of the first connecting plate, and a sealing ring groove is opened at the top of the second connecting plate. The sealing ring plate is inserted into the sealing ring groove. By setting the sealing ring plate and the sealing ring groove, the connection sealing between the first connecting plate and the second connecting plate can be further increased.

[0008] In a preferred embodiment of this utility model, reinforcing corner blocks are installed between the first connecting pipe and the first heat exchanger shell, and between the second connecting pipe and the second heat exchanger shell. By setting the reinforcing corner blocks, the connection strength between the first connecting pipe and the first heat exchanger shell, and between the second connecting pipe and the second heat exchanger shell is improved.

[0009] In a preferred embodiment of this utility model, the outer walls of the heat exchanger shell 1 and the heat exchanger shell 2 are fixedly inlaid with reinforcing ribs. The reinforcing ribs can provide a certain support for the heat exchanger shell 1 and the heat exchanger shell 2 as a whole, thereby improving the strength of the heat exchanger shell 1 and the heat exchanger shell 2.

[0010] Compared with the prior art, the present invention has the following advantages: This utility model features reinforcing ribs that provide overall support for heat exchanger shell 1 and heat exchanger shell 2, improving their strength. Furthermore, the connecting mechanism facilitates installation and disassembly of the two shells, making maintenance easier and enhancing its practicality.

[0011] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0012] In the attached diagram: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This utility model Figure 1 Enlarged structural diagram of section A in the middle; Figure 3 This is a schematic cross-sectional view of the connecting pipe 1 and connecting pipe 2 of this utility model. Figure 4 This utility model Figure 3 Enlarged structural diagram of section B; Figure 5 This is a schematic diagram of the top structure of the connecting disc 2 of this utility model.

[0013] In the diagram: 1. Heat exchanger shell one; 2. Heat exchanger shell two; 3. Connecting pipe one; 4. Connecting pipe two; 5. Connecting plate one; 6. Connecting plate two; 7. Reinforcing corner block; 8. Sealing gasket; 9. Clip frame; 10. Groove; 11. Clip slot one; 12. Fixed shaft; 13. Shaft hole; 14. Torsion spring; 15. Baffle; 16. Clip slot two; 17. Sealing ring plate; 18. Sealing ring groove; 19. Positioning post; 20. Positioning groove; 21. Reinforcing rib; 22. Clip plate. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.

[0015] like Figures 1 to 5 As shown, a double-cylinder casting shell for a heat exchanger includes a heat exchanger body 1 and a heat exchanger body 2. A connecting pipe 3 is connected to the bottom end of heat exchanger body 1, and a connecting pipe 4 is connected to the top end of heat exchanger body 2. A connecting plate 5 is installed at the bottom end of connecting pipe 3, and a connecting plate 6 is installed at the top end of connecting pipe 4. A connecting mechanism is provided between connecting plate 5 and connecting plate 6. The connecting mechanism includes a retaining frame 9 and a retaining plate 22. A groove 10 is formed between the outer walls of connecting plate 5 and connecting plate 6, and a retaining groove 11 is formed on the inner wall of the groove 10. 1. The card frame 9 is engaged in the card slot 11. A fixed shaft 12 is installed on the outer wall of the card frame 9. A shaft hole 13 is opened on the card plate 22. The card plate 22 is movably sleeved on the outer wall of the fixed shaft 12 through the shaft hole 13. A torsion spring 14 is installed between the inner wall of the shaft hole 13 and the outer wall of the fixed shaft 12. Card slots 26 are opened on both sides of the inner wall of the groove 10. The card plate 22 is engaged in the card slots 26. A baffle 15 is installed at one end of the fixed shaft 12. A positioning post 19 is installed at the bottom of the connecting plate 15. A positioning groove 20 is opened at the top of the connecting plate 26. The positioning post 19 is inserted into the positioning groove 20.

[0016] Furthermore, both heat exchanger shell 1 and heat exchanger shell 2 are made of stainless steel CF8M.

[0017] Furthermore, a sealing gasket 8 is provided between the connecting plate 5 and the connecting plate 6, and the sealing gasket 8 is installed on the top of the connecting plate 6.

[0018] By setting a sealing gasket 8, the connection tightness between connecting disc 1 5 and connecting disc 2 6 can be increased, thereby improving the sealing performance.

[0019] Furthermore, a sealing ring plate 17 is installed at the bottom of the connecting plate 5, and a sealing ring groove 18 is opened at the top of the connecting plate 6, with the sealing ring plate 17 inserted into the sealing ring groove 18.

[0020] By setting the sealing ring plate 17 and the sealing ring groove 18, the connection sealing between the first connecting plate 5 and the second connecting plate 6 can be further increased.

[0021] Furthermore, reinforcing corner blocks 7 are installed between connecting pipe 3 and heat exchanger shell 1, and between connecting pipe 4 and heat exchanger shell 2.

[0022] Among them, by setting the reinforcing corner block 7, the connection strength between connecting pipe 1 3 and heat exchanger shell 1, and connecting pipe 2 4 and heat exchanger shell 2 2 is improved.

[0023] Furthermore, reinforcing ribs 21 are fixedly embedded on the outer walls of heat exchanger shell 1 and heat exchanger shell 2.

[0024] Among them, the reinforcing ribs 21 are provided, which can provide a certain support for the heat exchanger shell 1 and the heat exchanger shell 2 as a whole, and improve the service strength of the heat exchanger shell 1 and the heat exchanger shell 2.

[0025] The implementation principle of a twin-cylinder casting shell for a heat exchanger is as follows: During installation and use, align connecting pipe 3 and connecting pipe 4, insert positioning pin 19 into positioning groove 20, then rotate clamping plate 22 to twist torsion spring 14, making clamping plate 22 parallel to clamping frame 9. Then, clamping frame 9 is inserted into clamping groove 11, limiting the connection between connecting disc 5 and connecting disc 6. Then, release clamping plate 22, which will then rotate under the restoring force of torsion spring 14, locking clamping plate 22 into clamping groove 16, limiting and fixing clamping frame 9, thereby completing the connection and installation between connecting pipe 3 and connecting pipe 4. When disassembly is required, the clamping plate 22 must first be rotated to disengage it from the second clamping slot 16. Then, the clamping frame 9 must be pulled outward to disengage it from the first clamping slot 11, so that the clamping frame 9 no longer restricts the connection plate 5 and the second connection plate 6. At this time, the connection plate 5 and the second connection plate 6 can be separated from each other, thus completing the disassembly. Through the above structure, the reinforcing rib 21 is provided, which can provide a certain support for the heat exchanger shell 1 and the heat exchanger shell 2 as a whole, improving the strength of the heat exchanger shell 1 and the heat exchanger shell 2. Furthermore, the connection mechanism facilitates the installation and disassembly of the two shells, making it easier for personnel to maintain them. It is highly practical.

Claims

1. A double-cylinder casting shell for a heat exchanger, comprising a heat exchanger cylinder one (1) and a heat exchanger cylinder two (2), characterized in that, A connecting pipe 1 (3) is connected to the bottom end of the heat exchanger shell 1 (1), and a connecting pipe 2 (4) is connected to the top end of the heat exchanger shell 2 (2). A connecting plate 1 (5) is installed at the bottom end of the connecting pipe 1 (3), and a connecting plate 2 (6) is installed at the top end of the connecting pipe 2 (4). A connecting mechanism is provided between the connecting plate 1 (5) and the connecting plate 2 (6). The connecting mechanism includes a retaining frame (9) and a retaining plate (22). A groove (10) is provided between the outer walls of the connecting plate 1 (5) and the connecting plate 2 (6). A retaining groove 1 (11) is provided on the inner wall of the groove (10). The retaining frame (9) is engaged with the retaining groove 1 (11). A fixed shaft (12) is installed on the outer wall. A shaft hole (13) is opened on the clamping plate (22). The clamping plate (22) is movably sleeved on the outer wall of the fixed shaft (12) through the shaft hole (13). A torsion spring (14) is installed between the inner wall of the shaft hole (13) and the outer wall of the fixed shaft (12). A second groove (16) is opened on both sides of the inner wall of the groove (10). The clamping plate (22) is engaged in the second groove (16). A baffle (15) is installed at one end of the fixed shaft (12). A positioning post (19) is installed at the bottom end of the first connecting plate (5). A positioning groove (20) is opened at the top end of the second connecting plate (6). The positioning post (19) is inserted into the positioning groove (20).

2. The double-cylinder casting shell of a heat exchanger according to claim 1, characterized in that, Both heat exchanger cylinder one (1) and heat exchanger cylinder two (2) are made of stainless steel CF8M.

3. The double-cylinder casting shell of a heat exchanger according to claim 1, characterized in that, A sealing gasket (8) is provided between the first connecting plate (5) and the second connecting plate (6), and the sealing gasket (8) is installed on the top of the second connecting plate (6).

4. The double-cylinder casting shell of a heat exchanger according to claim 1, characterized in that, A sealing ring plate (17) is installed at the bottom of the first connecting plate (5), and a sealing ring groove (18) is opened at the top of the second connecting plate (6). The sealing ring plate (17) is inserted into the sealing ring groove (18).

5. The double-cylinder casting shell of a heat exchanger according to claim 1, characterized in that, Reinforcing corner blocks (7) are installed between the first connecting pipe (3) and the first heat exchanger shell (1), and between the second connecting pipe (4) and the second heat exchanger shell (2).

6. The double-cylinder casting shell of a heat exchanger according to claim 1, characterized in that, The outer walls of heat exchanger body one (1) and heat exchanger body two (2) are fixedly inlaid with reinforcing ribs (21).

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