U-shaped tubular heat exchanger

Abstract

The utility model relates to the technical field of heat exchange, in particular to a u-shaped tubular heat exchanger which comprises a heat exchange bin, a water outlet pipe is installed on the bottom face of one end of the heat exchange bin, a water inlet pipe is installed on the bottom face of the other end of the heat exchange bin, a partition plate is installed between the water inlet pipe and the water outlet pipe, and a plurality of heat exchange pipes are fixedly installed in the heat exchange bin. A splitter plate is fixedly mounted in the seal head, an air inlet pipe is mounted on the upper surface of the seal head, and a condensate pipe is mounted on the lower surface of the seal head; the device has the beneficial effects that high-temperature water vapor can be introduced into the end socket through the air inlet pipe, then low-temperature liquid enters the heat exchange bin through the water inlet pipe, the two pipe openings of the heat exchange pipe are located in the upper space and the lower space respectively, and the high-temperature water vapor can be introduced into the lower space of the end socket through the pipe opening of the heat exchange pipe in the upper space; in the conveying process, high-temperature water vapor can conduct heat exchange on liquid in the heat exchange bin through the heat exchange pipes, the partition plates in the heat exchange bin can make low-temperature liquid make contact with the heat exchange pipes for a long enough time, and therefore heat exchange is more sufficient.

Description

Technical Field

[0001] This utility model relates to the field of heat exchange technology, specifically a U-shaped tube heat exchanger. Background Technology

[0002] Heat exchangers play a vital role in industry and daily life, and are widely used in heating, cooling, chemical and power generation fields. They achieve efficient energy utilization by efficiently transferring heat, improving system energy efficiency and reducing energy waste. In industrial processes, heat exchangers can reduce production costs, optimize process flow, and improve product quality. In addition, heat exchangers can reduce greenhouse gas emissions and promote energy conservation, emission reduction and environmental protection.

[0003] In the existing technology, traditional heat exchangers are mainly composed of a shell, tube bundle, tube sheet and end caps. The shell protects the internal components, the tube bundle consists of multiple heat exchange tubes for heat transfer, the tube sheet fixes the tube bundle, and the end caps seal both ends and guide fluid flow. This structure ensures efficient heat exchange and stable operation.

[0004] However, in traditional heat exchangers, materials are fed into the shell through the feed pipe and then discharged through the outlet after a short contact time. This process has a short heat exchange time, which may lead to insufficient heat exchange. Therefore, this utility model proposes a U-shaped tube heat exchanger to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a U-tube heat exchanger to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A U-shaped tube heat exchanger, comprising: a heat exchange chamber, an outlet pipe installed on the bottom surface of one end of the heat exchange chamber, an inlet pipe installed on the bottom surface of the other end of the heat exchange chamber, a partition installed between the inlet pipe and the outlet pipe, and a plurality of heat exchange tubes fixedly installed inside the heat exchange chamber;

[0007] The end cap has a flow divider plate fixedly installed inside it, an air inlet pipe is installed on the upper surface of the end cap, and a condensate pipe is installed on the lower surface of the end cap.

[0008] Preferably, the heat exchange chamber is cylindrical in shape, with holes on the upper surface of the heat exchange chamber, an exhaust pipe fixedly installed in the holes, a level gauge fixedly installed at one end of the heat exchange chamber, an interface pipe fixedly installed at the other end of the heat exchange chamber, and several support platforms fixedly installed on the lower surface of the heat exchange chamber.

[0009] Preferably, a plurality of connecting blocks are fixedly installed on the outer wall surface of the interface tube, and a groove is opened on the inner wall of the interface tube, a sealing ring is fixedly installed in the groove, and a fixing plate is fixedly connected to the inner circumferential surface of the sealing ring.

[0010] Preferably, a plurality of fixing blocks are fixedly installed on the outer wall of the end cap near the heat exchange chamber. The surface of the fixing blocks has holes, and the holes are provided with mounting screws. The mounting screws pass through the fixing blocks and the connecting blocks. The mounting screws are screwed with mounting nuts at the outer end near the heat exchange chamber. The upper surface of the end cap has holes, and the air inlet pipe is fixedly installed in the holes. The lower surface of the end cap has holes, and the condensate pipe is fixedly installed in the holes.

[0011] Preferably, the flow divider is located between the air inlet pipe and the condensate pipe, and the flow divider is fixedly installed on the inner wall surface of the head, with the end of the flow divider near the heat exchange chamber in contact with the surface of the fixed plate.

[0012] Preferably, the surface of the fixed plate has two sets of connection holes, one set of connection holes is located above the flow divider plate and the other set of connection holes is located below the flow divider plate. The two sets of connection holes are respectively fixedly connected to both ends of a plurality of heat exchange tubes. A plurality of linearly equidistant mounting plates are fitted on the surface of the plurality of heat exchange tubes. A support block is fixedly installed below the mounting plate. The support block is fixedly installed on the inner wall surface of the heat exchange chamber. A partition is provided in front of the end of the heat exchange tube near the liquid level gauge.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This utility model proposes a U-shaped tube heat exchanger. In use, high-temperature steam is introduced into the head through the inlet pipe, while low-temperature liquid enters the heat exchange chamber through the inlet pipe. A flow divider separates the head into upper and lower spaces, with the two inlets of the heat exchange tubes located in the upper and lower spaces respectively. High-temperature steam can enter the lower space of the head through the inlet of the heat exchange tube in the upper space. During the transport process, the high-temperature steam exchanges heat with the liquid in the heat exchange chamber through the heat exchange tubes. Furthermore, the baffles within the heat exchange chamber allow the low-temperature liquid to contact the heat exchange tubes for a sufficient duration, resulting in more thorough heat exchange. Finally, the liquid and gas, having completed heat exchange, are discharged through the outlet pipe and condensate pipe, respectively. This avoids the problem of insufficient heat exchange due to short contact time. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic cross-sectional view of the structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of this utility model;

[0018] Figure 4 This is a bottom view of the structure of this utility model;

[0019] Figure 5 This is an exploded view of the structure of this utility model.

[0020] In the diagram: 1. Heat exchange chamber; 2. Outlet pipe; 3. Inlet pipe; 4. Heat exchange tube; 5. Baffle plate; 6. End cap; 7. Diverter plate; 8. Air inlet pipe; 9. Condensate pipe; 10. Exhaust pipe; 11. Level gauge; 12. Interface pipe; 13. Connecting block; 14. Sealing ring; 15. Fixing plate; 16. Fixing block; 17. Mounting screw; 18. Connecting hole; 19. Mounting plate; 20. Support platform. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] Example 1: Please refer to Figures 1 to 5 This utility model provides a technical solution: a U-shaped tube heat exchanger, the U-shaped tube heat exchanger includes: a heat exchange chamber 1, an outlet pipe 2 installed on the bottom surface of one end of the heat exchange chamber 1, an inlet pipe 3 installed on the bottom surface of the other end of the heat exchange chamber 1, a partition 5 installed between the inlet pipe 3 and the outlet pipe 2, and a plurality of heat exchange tubes 4 fixedly installed inside the heat exchange chamber 1;

[0023] End cap 6, with a flow divider 7 fixedly installed inside the end cap 6, an air inlet pipe 8 installed on the upper surface of the end cap 6, and a condensate pipe 9 installed on the lower surface of the end cap 6;

[0024] In use, high-temperature water vapor can be introduced into the head 6 through the air inlet pipe 8, and then low-temperature liquid can be introduced into the heat exchange chamber 1 through the water inlet pipe 3. The diverter plate 7 divides the head 6 into upper and lower spaces, and the two openings of the heat exchange tube 4 are located in the upper and lower spaces respectively. High-temperature water vapor can be introduced into the lower space of the head 6 through the opening of the heat exchange tube 4 in the upper space. During the transportation process, the high-temperature water vapor can exchange heat with the liquid in the heat exchange chamber 1 through the heat exchange tube 4, and the baffle 5 in the heat exchange chamber 1 can allow the low-temperature liquid to contact the heat exchange tube 4 for a sufficient time, so as to make the heat exchange more complete. Finally, the liquid and gas that have completed the heat exchange are discharged through the water outlet pipe 2 and the condensate pipe 9 respectively, thus avoiding the problem of insufficient heat exchange due to short contact time.

[0025] Example 2: Based on Example 1, a fixing plate 15 is provided for better heat exchange. The fixing plate 15 has two sets of connection holes 18 on its surface. One set of connection holes 18 is located above the flow divider plate 7, and the other set is located below the flow divider plate 7. The two sets of connection holes 18 are fixedly connected to both ends of several heat exchange tubes 4. Several linearly equidistant mounting plates 19 are fitted onto the surface of the heat exchange tubes 4. A support block is fixedly installed below the mounting plates 19, and the support block is fixedly installed on the inner wall surface of the heat exchange chamber 1. A baffle 5 is provided in front of the end of the heat exchange tube 4 closest to the level gauge 11. The flow divider plate 7 is located between the air inlet pipe 8 and the condensate pipe 9. At the intermediate position, the flow divider 7 is fixedly installed on the inner wall surface of the head 6, with the end of the flow divider 7 near the heat exchange chamber 1 attached to the surface of the fixed plate 15. During heat exchange, high-temperature water vapor enters the head 6 through the inlet pipe 8, and the head 6 is divided into two spaces by the flow divider 7. When the water vapor enters the head 6, it enters the heat exchange tube 4 through the upper end of the tube. After entering the heat exchange tube 4, it exchanges heat with the low-temperature liquid in the heat exchange chamber 1, and then discharges the condensate produced by condensation through the lower end of the tube. The entire heat exchange tube 4 has a "U" shaped structure, which prolongs the time that the high-temperature gas stays in the heat exchange tube 4, thereby improving heat exchange.

[0026] Several fixing blocks 16 are fixedly installed on the outer wall of the end cap 6 near the heat exchange chamber 1. The surface of the fixing block 16 has holes, and the holes are provided with mounting screws 17. The mounting screws 17 pass through the fixing blocks 16 and the connecting block 13. The mounting screws 17 are screwed with mounting nuts at the outer end near the heat exchange chamber 1. The upper surface of the end cap 6 has holes, and the air inlet pipe 8 is fixedly installed in the holes. The lower surface of the end cap 6 has holes, and the condensate pipe 9 is fixedly installed in the holes. After the high-temperature water vapor is introduced into the heat exchange tube 4 to complete the heat exchange, it will condense to produce condensate. The condensate can be discharged through the condensate pipe 9, thereby improving the heat exchange.

[0027] Example 3: Based on Example 2, a heat exchange chamber 1 is provided to ensure more efficient heat exchange in the overall device. The heat exchange chamber 1 is cylindrical in shape. A hole is formed on the upper surface of the heat exchange chamber 1, and an exhaust pipe 10 is fixedly installed inside the hole. A level gauge 11 is fixedly installed at one end of the heat exchange chamber 1, and an interface pipe 12 is fixedly installed at the other end. Several support platforms 20 are fixedly installed on the lower surface of the heat exchange chamber 1. Several connecting blocks 13 are fixedly installed on the outer wall surface of the interface pipe 12. A groove is formed on the inner wall of the interface pipe 12, and a sealing ring 14 is fixedly installed inside the groove. The inner ring of the sealing ring 14... A fixing plate 15 is fixedly connected to the surface; between the inlet pipe 3 and the outlet pipe 2 at the bottom of the heat exchange chamber 1, a partition 5 is fixedly installed on the inner wall of the heat exchange chamber 1. The partition 5 divides the heat exchange chamber 1 into two spaces. When water enters the heat exchange chamber 1 through the inlet pipe 3, the partition 5 can keep the water near the heat exchange pipe 4 for a period of time, so that the water can exchange heat with the heat exchange pipe 4 for a longer time. When the water entering through the inlet pipe 3 exceeds the height of the partition 5, the water will flow into the end where the outlet pipe 2 is installed, so that the water can exchange heat with the heat exchange pipe 4 for a longer time, making the heat exchange more complete.

[0028] Working principle: In actual use, high-temperature water vapor can be introduced into the head 6 through the air inlet pipe 8, and then low-temperature liquid can be introduced into the heat exchange chamber 1 through the water inlet pipe 3. The diverter plate 7 divides the head 6 into upper and lower spaces, and the two openings of the heat exchange tube 4 are located in the upper and lower spaces respectively. High-temperature water vapor can be introduced into the lower space of the head 6 through the opening of the heat exchange tube 4 in the upper space. During the transportation process, the high-temperature water vapor can exchange heat with the liquid in the heat exchange chamber 1 through the heat exchange tube 4, and the baffle 5 in the heat exchange chamber 1 can allow the low-temperature liquid to contact the heat exchange tube 4 for a sufficient time, so as to make the heat exchange more complete. Finally, the liquid and gas that have completed the heat exchange are discharged through the water outlet pipe 2 and the condensate pipe 9 respectively, thus avoiding the problem of insufficient heat exchange due to short contact time.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A u-tube heat exchanger, characterized by: The u-shaped tube heat exchanger comprises a heat exchange bin (1), a water outlet pipe (2) is installed on the bottom surface of one end of the heat exchange bin (1), a water inlet pipe (3) is installed on the bottom surface of the other end of the heat exchange bin (1), a partition plate (5) is installed between the water inlet pipe (3) and the water outlet pipe (2), and a plurality of heat exchange pipes (4) are fixedly installed in the heat exchange bin (1); A head (6) is fixedly installed in the head (6), a flow distribution plate (7) is fixedly installed on the upper surface of the head (6), a gas inlet pipe (8) is installed on the upper surface of the head (6), a condensate pipe (9) is installed on the lower surface of the head (6), the heat exchange bin (1) is in a cylindrical structure, a hole is formed in the upper surface of the heat exchange bin (1), an exhaust pipe (10) is fixedly installed in the hole, a liquid level meter (11) is fixedly installed on one end of the heat exchange bin (1), an interface pipe (12) is fixedly installed on the other end of the heat exchange bin (1), a plurality of support tables (20) are fixedly installed on the lower surface of the heat exchange bin (1), a plurality of connecting blocks (13) are fixedly installed on the outer wall surface of the interface pipe (12), a groove is formed in the inner wall of the interface pipe (12), a sealing ring (14) is fixedly installed in the groove, a fixed plate (15) is fixedly connected to the inner ring surface of the sealing ring (14), a plurality of fixed blocks (16) are fixedly installed on the outer wall of one end of the head (6) close to the heat exchange bin (1), a hole is formed in the surface of the fixed block (16), an installation screw rod (17) is arranged in the hole, the installation screw rod (17) penetrates through the fixed block (16) and the connecting block (13), an installation nut is screwed on one end of the installation screw rod (17) close to the heat exchange bin (1), a hole is formed in the upper surface of the head (6), the gas inlet pipe (8) is fixedly installed in the hole, a hole is formed in the lower surface of the head (6), and the condensate pipe (9) is fixedly installed in the hole.

2. A u-tube heat exchanger according to claim 1, characterized in that: The flow distribution plate (7) is located at the intermediate position between the gas inlet pipe (8) and the condensate pipe (9), the flow distribution plate (7) is fixedly installed on the inner wall surface of the head (6), and the flow distribution plate (7) is attached to the surface of the fixed plate (15) close to one end of the heat exchange bin (1).

3. A u-tube heat exchanger according to claim 1, characterized in that: A plurality of connecting holes (18) are formed in the surface of the fixed plate (15), one group of connecting holes (18) is located above the flow distribution plate (7), the other group of connecting holes (18) is located below the flow distribution plate (7), the two groups of connecting holes (18) are fixedly connected to the two ends of the plurality of heat exchange pipes (4), respectively, a plurality of installation plates (19) are sleeved on the surface of the plurality of heat exchange pipes (4) in linear equidistant arrangement, a support block is fixedly installed below the installation plate (19), the support block is fixedly installed on the inner wall surface of the heat exchange bin (1), and the heat exchange pipe (4) is provided with the partition plate (5) in front of one end close to the liquid level meter (11).

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