Tubular heat exchanger
By introducing shell connection devices and inlet/outlet connection devices into the tubular heat exchanger, and using threaded connections and clamping structures, the problem of poor sealing effect is solved, achieving higher sealing performance and reducing liquid leakage.
Patent Information
- Application Number
- CN202423235499.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2034-12-27
AI Technical Summary
Existing tubular heat exchangers have poor sealing performance and are prone to liquid leakage under high pressure.
A tubular heat exchanger was designed, employing a shell connection device and an inlet/outlet connection device, including a shell connector, an end cap connector, a partition, a clamping body, and a sealing ring. The sealing performance is improved through threaded connection and clamping structure.
This improved the sealing performance of the heat exchanger and reduced the occurrence of liquid leakage.
Smart Images
Figure CN223741288U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of heat exchanger technology, specifically relating to a tubular heat exchanger. Background Technology
[0002] The main function of a heat exchanger is to transfer some of the heat from a hot fluid to a cold fluid. Heat exchangers play an important role in industrial production such as chemical, petroleum, power, and food. Heat exchangers are classified into tubular heat exchangers, plate heat exchangers, and regenerative heat exchangers.
[0003] Tubular heat exchangers are widely used due to their simple structure, high heat transfer efficiency, and convenient installation. However, the tube sheet and shell of existing tubular heat exchangers are designed to be detachable, which results in relatively poor sealing and easy leakage when the pressure is high.
[0004] Therefore, in order to address the aforementioned technical problems, it is necessary to provide a tubular heat exchanger.
[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content
[0006] The purpose of this invention is to provide a tubular heat exchanger that can solve the problems of poor sealing effect and liquid leakage in tubular heat exchangers.
[0007] To achieve the above objectives, a specific embodiment of the present invention provides a tubular heat exchanger, comprising: a shell, an inlet / outlet connection device, and a shell connection device;
[0008] One end of the housing is connected to a first end cap, and the other end of the housing away from the first end cap is connected to a second end cap. A first chamber is provided inside the first end cap, a fifth chamber is provided inside the second end cap, a third chamber is provided inside the housing, a second chamber is provided at one end of the third chamber, and a fourth chamber is provided at the other end of the third chamber away from the second chamber.
[0009] The inlet and outlet connection device is installed on the housing. The inlet and outlet connection device includes a connector head. Multiple connection grooves are cut into the connector head. A second rotating shaft is provided in each of the multiple connection grooves. A connecting piece is rotatably connected to the second rotating shaft.
[0010] The housing connecting device is installed on the housing. The housing connecting device includes a housing connector, an end cap connector is provided inside the housing connector, a partition is provided between the housing connector and the end cap connector, and a retaining groove is chiseled on the housing connector.
[0011] In one or more embodiments of this utility model, a second heat exchange tube is connected between the second chamber and the fourth chamber, and the second heat exchange tube transfers the liquid in the second chamber to the fourth chamber. A first heat exchange tube is connected between the first chamber and the fifth chamber, and the first heat exchange tube transfers the liquid in the first chamber to the fifth chamber. A third heat exchange tube is connected between the third chamber and the fifth chamber, and the third heat exchange tube transfers the liquid in the fifth chamber to the third chamber.
[0012] In one or more embodiments of this utility model, the first heat exchange tube passes through the second heat exchange tube, allowing the hot and cold fluids to exchange heat for the first time.
[0013] In one or more embodiments of this utility model, the first end cap is provided with a first fluid inlet, and the housing is provided with a first fluid outlet, a second fluid inlet, and a second fluid outlet for fluids to flow in and out for heat exchange.
[0014] In one or more embodiments of this utility model, the first fluid inlet is connected to the first chamber, the first fluid outlet is connected to the third chamber, the second fluid inlet is connected to the second chamber, and the second fluid outlet is connected to the fourth chamber. One fluid flows into the first chamber from the first fluid inlet, then flows into the fifth chamber through the first heat exchange tube, then flows into the third chamber through the third heat exchange tube, and finally flows out from the first fluid outlet. Another fluid flows in from the second fluid inlet, then flows into the fourth chamber through the second heat exchange tube, and then flows out from the second fluid outlet.
[0015] In one or more embodiments of this utility model, a clamping groove is chiseled at the end of the connector away from the second rotating shaft for installing a clamping body. A first rotating shaft is provided in the clamping groove, and a clamping body is rotatably connected to the first rotating shaft for clamping the connecting pipe that needs to be fixed.
[0016] In one or more embodiments of this utility model, a first threaded ring is threadedly connected to the connector head, and a top block is provided on the first threaded ring. By rotating the first threaded ring, the top block can be pushed forward, and then the top block presses the clamping body tightly, and the clamping body clamps the flange head connected to the heat exchanger.
[0017] In one or more embodiments of this utility model, a third rotating shaft is provided in the slot of the card body, and a card body is rotatably connected to the third rotating shaft for locking the end cap connector. A spring is provided between the inner wall of the third rotating shaft and the card body for tightening the card body.
[0018] In one or more embodiments of this utility model, a second threaded ring is threadedly connected to the housing connector. After the second threaded ring rotates, it moves toward the clamping body and clamps the clamping body, thereby clamping the end cap connector.
[0019] In one or more embodiments of this utility model, a second sealing ring is provided between the housing connector and the partition, and a first sealing ring is provided between the partition and the end cap connector, for sealing and preventing leakage.
[0020] Compared with the prior art, this utility model improves the sealing effect of the heat exchanger and reduces the occurrence of liquid leakage through related structural design. Attached Figure Description
[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0022] Figure 1 This is a perspective view of a tubular heat exchanger according to one embodiment of the present invention;
[0023] Figure 2 This is a cross-sectional view of a tubular heat exchanger according to one embodiment of the present invention;
[0024] Figure 3 for Figure 2 The structural diagram shown at point A in the middle;
[0025] Figure 4 for Figure 2 The structural diagram shown at point B in the middle;
[0026] Figure 5 This is a schematic diagram of the inlet / outlet connection device in one embodiment of the present invention;
[0027] Figure 6 This is a cross-sectional view of the inlet and outlet connection device in one embodiment of the present invention;
[0028] Figure 7 This is a perspective cross-sectional view of the housing connection device in one embodiment of the present invention.
[0029] Explanation of key figure labels:
[0030] 1-Shell, 101-First end cap, 102-Second end cap, 103-First chamber, 104-Second chamber, 105-Third chamber, 106-Fourth chamber, 107-Fifth chamber, 108-First heat exchange tube, 109-Second heat exchange tube, 110-Third heat exchange tube, 111-First fluid inlet, 112-First fluid outlet, 113-Second fluid inlet, 114-Second fluid outlet, 2-Inlet / outlet connection device, 201-Connector, 2 02-First threaded ring, 203-Top block, 204-Clamping body, 205-Connector, 206-Connecting groove, 207-First rotating shaft, 208-Second rotating shaft, 209-Clamping body groove, 3-Housing connecting device, 301-Housing connecting head, 302-End cap connecting head, 303-Second threaded ring, 304-Partition plate, 305-Clamping body, 306-Spring, 307-Third rotating shaft, 308-First sealing ring, 309-Second sealing ring, 310-Clamping body groove. Detailed Implementation
[0031] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.
[0032] like Figures 1 to 7 As shown, a tubular heat exchanger in one embodiment of the present invention includes: a shell 1, an inlet / outlet connection device 2, and a shell connection device 3.
[0033] like Figures 1 to 2 As shown, one end of the housing 1 is connected to a first end cap 101, and the other end of the housing 1 away from the first end cap 101 is connected to a second end cap 102, which are used to seal both ends of the heat exchanger. A first chamber 103 is provided inside the first end cap 101, a fifth chamber 107 is provided inside the second end cap 102, a third chamber 105 is provided inside the housing 1, a second chamber 104 is provided at one end of the third chamber 105, and a fourth chamber 106 is provided at the other end of the third chamber 105 away from the second chamber 104. The fluid used for heat exchange flows in the chambers.
[0034] like Figures 1 to 4As shown, a second heat exchange tube 109 connects the second chamber 104 and the fourth chamber 106, transferring the liquid in the second chamber 104 to the fourth chamber 106. A first heat exchange tube 108 connects the first chamber 103 and the fifth chamber 107, transferring the liquid in the first chamber 103 to the fifth chamber 107. A third heat exchange tube 110 connects the third chamber 105 and the fifth chamber 107, transferring the liquid in the fifth chamber 107 to the third chamber 105. The first heat exchange tube 108 passes through the second heat exchange tube 109, allowing for the initial heat exchange between the hot and cold fluids.
[0035] like Figures 1 to 4 As shown, a first fluid inlet 111 is provided on the first end cap 101, and a first fluid outlet 112, a second fluid inlet 113, and a second fluid outlet 114 are provided on the shell 1 for the fluid to flow in and out for heat exchange. The first fluid inlet 111 is connected to the first chamber 103, the first fluid outlet 112 is connected to the third chamber 105, the second fluid inlet 113 is connected to the second chamber 104, and the second fluid outlet 114 is connected to the fourth chamber 106. One type of fluid flows into the first chamber 103 from the first fluid inlet 111, then flows into the fifth chamber 107 through the first heat exchange tube 108, then flows into the third chamber 105 through the third heat exchange tube 110, and finally flows out from the first fluid outlet 112. Another type of fluid flows in from the second fluid inlet 113, then flows into the fourth chamber 106 through the second heat exchange tube 109, and then flows out from the second fluid outlet 114.
[0036] like Figures 5 to 6 As shown, the inlet / outlet connection device 2 is installed on the housing 1. The inlet / outlet connection device 2 includes a connector 201 for connecting flanges for inlet and outlet fluids. Multiple connection grooves 206 are cut into the connector head, and each of the multiple connection grooves 206 is provided with a second rotating shaft 208 for installing a connector 205. The connector 205 is rotatably connected to the second rotating shaft 208 for installing a clamp 204. A clamping groove 209 is cut into the end of the connector 205 away from the second rotating shaft 208 for installing the clamp 204. A first rotating shaft 207 is provided in the clamping groove 209, and the clamp 204 is rotatably connected to the first rotating shaft 207 for clamping the connecting pipe that needs to be fixed.
[0037] like Figures 5 to 6 As shown, a first threaded ring 202 is threadedly connected to the connector 201. A top block 203 is provided on the first threaded ring 202. By rotating the first threaded ring 202, the top block 203 can be pushed forward, and then the top block 203 will press the clamp 204 tightly. The clamp 204 will clamp the flange head connected to the heat exchanger.
[0038] like Figure 3 and7 As shown, the housing connecting device 3 is installed on the housing 1. The housing connecting device 3 includes a housing connector 301, which connects the housing 1 to the first end cap 101 and the second end cap 102. The housing connector 301 contains an end cap connector 302 for connecting the housing 1. A partition 304 is provided between the housing connector 301 and the end cap connector 302 to separate the first chamber 103 from the second chamber 104, and the fourth chamber 106 from the fifth chamber 107. A retaining groove 310 is cut into the housing connector 301 for installing a retaining body 305.
[0039] like Figure 3 and 7 As shown, a third rotating shaft 307 is provided inside the locking groove 310, and a locking body 305 is rotatably connected to the third rotating shaft 307 to lock the end cap connector 302. A spring 306 is provided between the inner wall of the third rotating shaft 307 and the locking body 305 to tighten the locking body 305. A second threaded ring 303 is threadedly connected to the housing connector 301. After the second threaded ring 303 rotates, it moves towards the locking body 305, locking the locking body 305 and thus locking the end cap connector 302. A second sealing ring 309 is provided between the housing connector 301 and the partition 304, and a first sealing ring 308 is provided between the partition 304 and the end cap connector 302 for sealing and preventing leakage.
[0040] Working principle: Before using the heat exchanger, the shell 1 needs to be connected and sealed with the first end cover 101 and the second end cover 102 using the shell connection device 3. First, install the partition plate 304 into the shell connector 301, and then install the end cover connector 302 into the shell connector. The partition plate 304 is placed between the shell connector 301 and the end cover connector 302. Then, rotate the clamping body 305 to clamp the end cover connector 302. At this time, the spring 306 will clamp the clamping body 305 towards the end cover connector 302 due to its elastic force, thereby clamping the end cover connector 302 towards the shell connector 301. Finally, rotate the second threaded ring 303 to move the second threaded ring 303 towards the clamping body 305. After the second threaded ring 303 moves upward to a certain position, it will lock the clamping body 305 and continue to clamp the clamping body 305 towards the end cover connector 302, thereby further increasing the stability and sealing of the connection.
[0041] Then, the flanges of the inlet and outlet of the external hot and cold fluids need to be connected to the heat exchanger. First, place the flange to be connected in the connector 201, and then rotate the first threaded ring 202. The first threaded ring 202 pushes the top block 203 to move towards the clamp 204. During the movement of the top block 203, it will first contact the connector 205. The top block 203 pushes the connector 205 into the connecting groove 206 and puts it in a vertical position. Then, the top block 203 continues to move and will contact the end of the clamp 204 placed outside the connector 201 and push it to move upward. Then, the clamp 204 will move towards the flange to be connected by the rotation of the third rotating shaft 207. After moving to a certain position, it will be clamped.
[0042] After the connection is completed, the hot fluid flows into the first chamber 103 from the first fluid inlet 111, then flows into the fifth chamber 107 through the first heat exchange tube 108, then flows into the third chamber 105 through the third heat exchange tube 110, and finally flows out from the first fluid outlet 112. The cold fluid flows in from the second fluid inlet 113, then flows into the fourth chamber 106 through the second heat exchange tube 109, and then flows out from the second fluid outlet 114. When the hot fluid flows through the first heat exchange tube 108 and the cold fluid flows through the second heat exchange tube 109, the hot and cold fluids exchange heat for the first time because the first heat exchange tube 108 passes through the second heat exchange tube 109. After the hot fluid flows from the fifth chamber 107 into the third chamber 105 through the third heat exchange tube 110, the hot fluid will exchange heat again with the cold fluid in the second heat exchange tube 109. In actual use, the inlets of the hot and cold fluids can be adjusted according to the needs.
[0043] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0044] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A tube heat exchanger, characterized by, The utility model relates to a heat exchange device, including: The shell one end is connected with first end cover, the shell is connected with second end cover away from first end cover one end, be provided with first chamber in first end cover, be provided with fifth chamber in second end cover, be provided with third chamber in shell, second chamber is set up to one end of third chamber, fourth chamber is set up to one end of third chamber away from second chamber; The inlet and outlet connecting device is installed on the shell, and the inlet and outlet connecting device comprises a connecting head, a plurality of connecting grooves are opened in the connecting head, a second rotating shaft is arranged in each of the connecting grooves, and a connecting piece is rotatably connected to the second rotating shaft; The shell connecting device is installed on the shell, and the shell connecting device comprises a shell connecting head, an end cover connecting head is arranged in the shell connecting head, a partition plate is arranged between the shell connecting head and the end cover connecting head, and a clamping body groove is opened in the shell connecting head.
2. A tubular heat exchanger according to claim 1, characterised in that The second chamber and the fourth chamber are connected by a second heat exchange pipe, the first chamber and the fifth chamber are connected by a first heat exchange pipe, and the third chamber and the fifth chamber are connected by a third heat exchange pipe.
3. A tubular heat exchanger according to claim 2, characterised in that The first heat exchange pipe penetrates the second heat exchange pipe.
4. A tubular heat exchanger according to claim 1, wherein A first fluid inlet is arranged on the first end cover, and a first fluid outlet, a second fluid inlet and a second fluid outlet are arranged on the shell.
5. A tubular heat exchanger according to claim 4, characterised in that The first fluid inlet is connected with the first chamber, the first fluid outlet is connected with the third chamber, the second fluid inlet is connected with the second chamber, and the second fluid outlet is connected with the fourth chamber.
6. A tubular heat exchanger according to claim 1, wherein A clamping body groove is opened in one end of the connecting piece away from the second rotating shaft, a first rotating shaft is arranged in the clamping body groove, and a clamping body is rotatably connected to the first rotating shaft.
7. A tubular heat exchanger according to claim 1, wherein A first threaded ring is threadedly connected to the connecting head, and a top block is arranged on the first threaded ring.
8. A tubular heat exchanger according to claim 1, wherein A third rotating shaft is arranged in the clamping body groove, a clamping body is rotatably connected to the third rotating shaft, and a spring is arranged between the inner wall of the third rotating shaft and the clamping body.
9. A tubular heat exchanger according to claim 1, wherein A second threaded ring is threadedly connected to the shell connecting head.
10. A tubular heat exchanger according to claim 1, wherein A second sealing ring is arranged between the shell connecting head and the partition plate, and a first sealing ring is arranged between the partition plate and the end cover connecting head.