A water chamber structure for a nuclear power plant heat exchanger
By introducing structures such as limiting plates and guide rods into the water chamber of the heat exchanger in nuclear power plants, the heat exchange tubes can be easily disassembled and installed, solving the problem of inconvenient maintenance of welded and fixed heat exchange tubes and improving maintenance efficiency and equipment repair efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-09-22
- Publication Date
- 2026-03-10
AI Technical Summary
In existing nuclear power plant heat exchanger water chambers, the welded and fixed heat exchange tubes are inconvenient to inspect and replace, resulting in low maintenance efficiency and increased labor intensity for staff.
The design incorporates a limiting plate, guide rod, and sliding plate. The combination of rubber guide plate and elastic plate enables convenient disassembly and installation of heat exchange tubes. The sliding connection of limiting slider and clamping rod simplifies the fixing and disassembly process of heat exchange tubes.
It improves the maintenance efficiency of heat exchange tubes, reduces the labor intensity of staff, simplifies replacement and testing operations, and enhances equipment repair efficiency.
Smart Images
Figure CN115507677B_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of nuclear power plants, in particular to a nuclear power plant heat exchanger water chamber structure. BACKGROUND
[0002] A heat exchanger is a device that transfers part of the heat of a hot fluid to a cold fluid, also known as a heat exchanger. Heat exchangers play an important role in chemical, petroleum, power, food and other industrial production, and in chemical production, heat exchangers can be used as heaters, coolers, condensers, evaporators and reboilers, and are widely used.
[0003] In the prior art, heat exchangers are usually used to cool equipment, especially in nuclear power equipment, the reliability of the heat exchanger is very important, so that the heat exchanger also needs to be regularly maintained during use, mainly to detect whether the water chamber of the heat exchanger is normal, to prevent the water inlet and outlet of the water chamber from being blocked.
[0004] However, the connection mode of the heat exchange pipe and the tube sheet in the existing heat exchanger water chamber mostly adopts a welding fixed mode, the welding fixed heat exchange pipe is very inconvenient for timely detection and replacement by the workers, so that if the heat exchange pipe is damaged during long-term use, the workers need to spend a lot of time and effort to replace the heat exchange pipe, greatly increasing the labor intensity of the workers during maintenance, and reducing the maintenance efficiency of the equipment. SUMMARY
[0005] The present application aims to provide a nuclear power plant heat exchanger water chamber structure to solve the problems in the background art.
[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a nuclear power plant heat exchanger water chamber structure, the nuclear power plant heat exchanger water chamber structure comprises:
[0007] A heat exchanger body, the surface of the heat exchanger body is provided with a tube sheet one and a tube sheet two, the surface of the tube sheet one is provided with a heat exchange pipe, the surface of the heat exchange pipe is hinged to a limiting plate, one end of the limiting plate is located on the surface of the tube sheet two;
[0008] An edge groove is provided on the surface of the tube sheet one, the surface of the edge groove is provided with a guide rod, the surface of the guide rod is slidingly connected with a sliding plate, and one end of the sliding plate is in contact with a clamping rod, the clamping rod is slidingly connected to the surface of the tube sheet one.
[0009] Preferably, the surface of the heat exchange pipe is integrally formed with a round hole, the heat exchanger body is a circular hollow structure, and the round hole is through the inside of the heat exchange pipe; the round hole is provided in multiple groups, and the multiple groups of round holes are distributed at equal distances and equal sizes; the surface of the heat exchange pipe is provided with a receiving groove, and a limiting plate is hingedly connected to the surface of the receiving groove; the surface of the limiting plate is provided with a rubber guide plate, and the rubber guide plate is in an arc-shaped plate structure.
[0010] Preferably, the surface of the receiving groove is provided with an elastic plate, the elastic plate is in an arc-shaped plate structure, one end of the elastic plate is in contact with the surface of the limiting plate, and the surface of the limiting plate is provided with an auxiliary block; one end of the limiting plate is located in a placing groove, and the placing groove is formed in the surface of the second tube plate; and the auxiliary block is located in a groove corresponding to the surface of the second tube plate.
[0011] Preferably, the receiving groove is provided in four groups, the four groups of receiving grooves are distributed in a circumferential array about the center of the heat exchange pipe; the surface of the limiting plate is provided with a movable groove, the surface of the movable groove is provided with a guide groove, the surface of the heat exchange pipe is inserted with a jacking rod, one end of the jacking rod is in contact with the limiting plate, one end of the jacking rod is provided with an auxiliary ring, and the auxiliary ring is in a ring-shaped plate structure.
[0012] Preferably, the surface of the heat exchange pipe is provided with a rotating groove, the surface of the rotating groove is slidably connected with a limiting sliding block, one end of the limiting sliding block penetrates through the surface of the jacking rod, and one end of the heat exchange pipe is located on the surface of the first tube plate.
[0013] Preferably, the edge groove is in a ring-shaped groove body structure, the guide rod is in an arc-shaped column structure with a circular cross section, the sliding plate is in an arc-shaped plate structure, and the sliding plate is provided in two groups and symmetrically distributed about the center of the guide rod.
[0014] Preferably, the surface of the first tube plate is provided with a vertical groove, the vertical groove is in a square groove body structure, and the clamping rod is slidably connected to the surface of the vertical groove; the surface of the clamping rod is integrally formed with a guide surface, the sliding plate is in contact with the guide surface, and one end of the clamping rod penetrates through the surface of the heat exchange pipe.
[0015] Preferably, the surface of the sliding plate is provided with a fixing frame, the fixing frame is in a square frame body structure, a handle is slidably connected to the surface of the fixing frame, and a spring is arranged between the surface of the fixing frame and the handle.
[0016] Compared with the prior art, the present application has the following advantages:
[0017] The nuclear power plant heat exchanger water chamber structure provided by the application contacts the rubber guide plate when the heat exchange pipe passes through the hole, the rubber guide plate extrudes the elastic plate, after the limiting plate passes through the hole, the limiting plate is ejected under the action of the elastic plate, one end of the limiting plate is located in the placing groove at this time, the limiting slide block is rotated to make one end thereof pass through the surface of the top holding rod; the hole on one surface of the tube plate passes through the other end of the heat exchange pipe, under the action of the spring, the handle is located in the fixed frame, two groups are opened or clamped by pulling the handle, the slide plate is moved to the surface thereof in contact with the guide surface along the guide rod, under the action of the spring, one end of the clamping rod passes through the surface of the heat exchange pipe to limit the heat exchange pipe; when the heat exchange pipe needs to be removed, the auxiliary ring drives the top holding rod to move along the movable groove to push the limiting plate to the horizontal state, so that the heat exchange pipe is conveniently disassembled as a whole. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 It is a structural schematic diagram of the application;
[0019] Figure 2 It is a structural schematic diagram of the tube plate one of the application;
[0020] Figure 3 It is Figure 2 the enlarged schematic diagram of A in the middle;
[0021] Figure 4 It is Figure 3 the enlarged schematic diagram of B in the middle;
[0022] Figure 5 It is a connecting structural schematic diagram of the tube plate one and the tube plate two of the application;
[0023] Figure 6 It is a local structural schematic diagram of the heat exchange pipe of the application;
[0024] Figure 7 It is a structural schematic diagram of the heat exchange pipe of the application;
[0025] Figure 8 It is a structural placing groove schematic diagram of the application;
[0026] Figure 9 It is a limiting plate structural schematic diagram of the application.
[0027] In the figure: the heat exchanger body 1, the tube plate one 2, the tube plate two 3, the heat exchange pipe 4, the round hole 41, the storage groove 5, the limiting plate 6, the rubber guide plate 7, the elastic plate 8, the auxiliary block 9, the movable groove 10, the guide groove 11, the auxiliary ring 12, the top holding rod 13, the convex block 14, the rotating groove 15, the limiting slide block 16, the edge groove 17, the guide rod 18, the slide plate 19, the vertical groove 20, the clamping rod 21, the guide surface 22, the fixed frame 23, the handle 24, the spring 25, the placing groove 26. DETAILED DESCRIPTION
[0028] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.
[0029] Embodiment one
[0030] Please refer to Figures 1-9 The present application provides a technical solution: a heat exchanger body 1, the surface of the heat exchanger body 1 is provided with a tube plate one 2 and a tube plate two 3, the surface of the tube plate one 2 is provided with a heat exchange pipe 4, the surface of the heat exchange pipe 4 is hinged to a limiting plate 6, one end of the limiting plate 6 is located on the surface of the tube plate two 3; an edge groove 17 is opened on the surface of the tube plate one 2, the surface of the edge groove 17 is provided with a guide rod 18, the surface of the guide rod 18 is slidingly connected with a sliding plate 19, and one end of the sliding plate 19 is in contact with a clamping rod 21, the clamping rod 21 is slidingly connected on the surface of the tube plate one 2;
[0031] The heat exchange pipe 4 is inserted into the hole on the surface of the tube plate two 3, and the heat exchange pipe 4 is in contact with the rubber guide plate 7 when passing through the hole, the rubber guide plate 7 extrudes the elastic plate 8, and after the limiting plate 6 passes through the hole, the limiting plate 6 is ejected under the action of the elastic plate 8, and one end of the limiting plate 6 is located in the placing groove 26 at this time, and the limiting slide block 16 is rotated to make one end thereof pass through the surface of the supporting rod 13; the hole on the surface of the tube plate one 2 passes through the other end of the heat exchange pipe 4, and under the action of the spring 25, the handle 24 is located in the fixed frame 23, and by pulling the handle 24, the two groups are opened or clamped, so that the sliding plate 19 moves along the guide rod 18 to make the surface thereof in contact with the guide surface, and under the action of the spring, one end of the clamping rod 21 passes through the surface of the heat exchange pipe 4 to limit the heat exchange pipe 4; when the heat exchange pipe 4 needs to be removed, the auxiliary ring 12 is pushed to drive the supporting rod 13 to move along the movable groove 10 to push the limiting plate 6 to the horizontal state, so as to facilitate the overall disassembly of the heat exchange pipe 4.
[0032] Embodiment two
[0033] On the basis of embodiment one, in order to realize the fixation of one end of the heat exchange pipe 4, the surface of the heat exchange pipe 4 is integrally formed with a round hole 41, the heat exchanger body 1 is a circular hollow structure, and the round hole 41 is through the inside of the heat exchange pipe 4, the round hole 41 is provided in multiple groups, and the multiple groups of round holes 41 are distributed at equal distances and equal sizes, the surface of the heat exchange pipe 4 is provided with a receiving groove 5, and a limiting plate 6 is hinged on the surface of the receiving groove 5, the surface of the limiting plate 6 is provided with a rubber guide plate 7, the rubber guide plate 7 is in an arc-shaped plate structure, the surface of the receiving groove 5 is provided with an elastic plate 8, the elastic plate 8 is in an arc-shaped plate structure, one end of the elastic plate 8 is in contact with the surface of the limiting plate 6, and the surface of the limiting plate 6 is provided with an auxiliary block 9, one end of the limiting plate 6 is located in a placing groove 26, the placing groove 26 is opened on the surface of the second tube plate 3, the auxiliary block 9 is located in the groove on the surface of the second tube plate 3, the receiving groove 5 is provided in four groups, and the four groups of receiving grooves 5 are distributed in a circumferential array about the center of the heat exchange pipe 4, the surface of the limiting plate 6 is provided with a movable groove 10, the surface of the movable groove 10 is provided with a guide groove 11, the surface of the heat exchange pipe 4 is inserted with a top holding rod 13, and one end of the top holding rod 13 is in contact with the limiting plate 6, one end of the top holding rod 13 is provided with an auxiliary ring 12, the auxiliary ring 12 is in an annular plate structure, the heat exchange pipe 4 is inserted into the hole on the surface of the second tube plate 3, and the heat exchange pipe 4 is in contact with the rubber guide plate 7 when passing through the hole, the rubber guide plate 7 extrudes the elastic plate 8, and after the limiting plate 6 passes through the hole, the limiting plate 6 is ejected under the action of the elastic plate 8, and one end of the limiting plate 6 is located in the placing groove 26 at this time, and the limiting slide block 16 is rotated to make one end thereof pass through the surface of the top holding rod 13;
[0034] Embodiment three
[0035] On the basis of embodiment two, in order to realize the fixation of the rest one end of the heat exchange pipe 4, the surface of the heat exchange pipe 4 is provided with a rotating groove 15, the surface of the rotating groove 15 is slidably connected with a limiting sliding block 16, one end of the limiting sliding block 16 penetrates through the surface of the top holding rod 13, one end of the heat exchange pipe 4 is located on the surface of the tube plate one 2, the side groove 17 is in an annular groove structure, the guide rod 18 is in an arc column structure with a circular cross section, the sliding plate 19 is in an arc plate structure, the sliding plate 19 is provided with two groups, the two groups of sliding plates 19 are symmetrically distributed about the center of the guide rod 18, the surface of the tube plate one 2 is provided with a vertical groove 20, the vertical groove 20 is in a square groove structure, and the clamping rod 21 is slidably connected with the surface of the vertical groove 20, the surface of the clamping rod 21 is integrally formed with a guide surface 22, the sliding plate 19 is in contact with the guide surface 22, one end of the clamping rod 21 penetrates through the surface of the heat exchange pipe 4, the surface of the sliding plate 19 is provided with a fixing frame 23, the fixing frame 23 is in a square frame structure, the fixing frame 23 is slidably connected with a handle 24, and the surface of the fixing frame 23 and the handle 24 is provided with a spring 25, the hole on the surface of the tube plate one 2 penetrates through the rest one end of the heat exchange pipe 4, under the action of the spring 25, the handle 24 is located in the fixing frame 23, by pulling the handle 24, the two groups are opened or clamped, so that the sliding plate 19 moves along the guide rod 18 to be in contact with the guide surface on the surface of the guide rod 18, under the action of the spring, one end of the clamping rod 21 penetrates through the surface of the heat exchange pipe 4 to limit the heat exchange pipe 4; when the heat exchange pipe 4 needs to be removed, the auxiliary ring 12 drives the top holding rod 13 to move along the movable groove 10 to push the limiting plate 6 to the horizontal state, so as to facilitate the overall disassembly of the heat exchange pipe 4.
[0036] In actual use, the heat exchange pipe 4 is inserted into the hole on the surface of the tube plate two 3, the heat exchange pipe 4 is in contact with the rubber guide plate 7 when passing through the hole, the rubber guide plate 7 extrudes the elastic plate 8, after the limiting plate 6 penetrates through the hole, under the action of the elastic plate 8, the limiting plate 6 is ejected, one end of the limiting plate 6 is located in the placing groove 26 at this time, the limiting sliding block 16 is rotated to make one end thereof penetrate through the surface of the top holding rod 13;
[0037] The hole on the surface of the tube plate one 2 penetrates through the rest one end of the heat exchange pipe 4, under the action of the spring 25, the handle 24 is located in the fixing frame 23, by pulling the handle 24, the two groups are opened or clamped, so that the sliding plate 19 moves along the guide rod 18 to be in contact with the guide surface on the surface of the guide rod 18, under the action of the spring, one end of the clamping rod 21 penetrates through the surface of the heat exchange pipe 4 to limit the heat exchange pipe 4;
[0038] When the heat exchange pipe 4 needs to be removed, the auxiliary ring 12 drives the top holding rod 13 to move along the movable groove 10 to push the limiting plate 6 to the horizontal state, so as to facilitate the overall disassembly of the heat exchange pipe 4; when the tube plate needs to be replaced or repaired, the flanges at both ends of the heat exchanger body 1 are disassembled.
[0039] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A nuclear power plant heat exchanger waterbox structure, characterized by: The nuclear power plant heat exchanger water chamber structure comprises: The heat exchanger body (1) is provided with a tube plate one (2) and a tube plate two (3) on the surface, the surface of the tube plate one (2) is provided with a heat exchange tube (4), the surface of the heat exchange tube (4) is hinged with a limiting plate (6), one end of the limiting plate (6) is located on the surface of the tube plate two (3); The edge groove (17) is provided on the surface of the tube plate one (2), the surface of the edge groove (17) is provided with a guide rod (18), the surface of the guide rod (18) is slidingly connected with a sliding plate (19), one end of the sliding plate (19) is in contact with a clamping rod (21), and the clamping rod (21) is slidingly connected on the surface of the tube plate one (2); the surface of the heat exchange tube (4) is integrally formed with a circular hole (41), the heat exchanger body (1) is in a circular hollow structure, and the circular hole (41) is in communication with the inside of the heat exchange tube (4), the circular hole (41) is provided with multiple groups, the multiple groups of circular holes (41) are distributed at equal distances and equal sizes, the surface of the heat exchange tube (4) is provided with a receiving groove (5), and the limiting plate (6) is hinged on the surface of the receiving groove (5), the surface of the limiting plate (6) is provided with a rubber guide plate (7), and the rubber guide plate (7) is in an arc plate structure; the surface of the receiving groove (5) is provided with an elastic plate (8), the elastic plate (8) is in an arc plate structure, one end of the elastic plate (8) is in contact with the surface of the limiting plate (6), the surface of the limiting plate (6) is provided with an auxiliary block (9), one end of the limiting plate (6) is located in a placing groove (26), the placing groove (26) is provided on the surface of the tube plate two (3), and the auxiliary block (9) is located in the groove corresponding to the surface of the tube plate two (3); the receiving groove (5) is provided with four groups, the four groups of receiving grooves (5) are distributed in a circumferential array about the center of the heat exchange tube (4), the surface of the limiting plate (6) is provided with a movable groove (10), the surface of the movable groove (10) is provided with a guide groove (11), the heat exchange tube (4) is inserted with a top holding rod (13), one end of the top holding rod (13) is in contact with the limiting plate (6), one end of the top holding rod (13) is provided with an auxiliary ring (12), and the auxiliary ring (12) is in an annular plate structure.
2. A nuclear power plant heat exchanger water box structure according to claim 1, characterized in that: The surface of the heat exchange tube (4) is provided with a rotating groove (15), the surface of the rotating groove (15) is slidingly connected with a limiting sliding block (16), one end of the limiting sliding block (16) penetrates through the surface of the top holding rod (13), and one end of the top holding rod (13) is located on the surface of the tube plate one (2).
3. A nuclear power plant heat exchanger water box structure according to claim 2, characterized in that: The edge groove (17) is in an annular groove structure, the guide rod (18) is in an arc column structure with a circular cross section, the sliding plate (19) is in an arc plate structure, the sliding plate (19) is provided with two groups, the two groups of sliding plates (19) are symmetrically distributed about the center of the guide rod (18), a spring is arranged between the two groups of sliding plates (19), and the spring is sleeved on the surface of the guide rod (18).
4. A nuclear power plant heat exchanger water box structure according to claim 3, characterized in that: The surface of the tube plate one (2) is provided with vertical grooves (20), the vertical grooves (20) are square groove body structures, and the clamping rods (21) are slidingly connected to the surface of the vertical grooves (20), the surface of the clamping rods (21) is integrally formed with guide surfaces (22), the sliding plate (19) is in contact with the guide surfaces (22), and one end of the clamping rods (21) penetrates the surface of the heat exchange pipes (4).
5. A nuclear power plant heat exchanger water box structure according to claim 4, characterized in that: The surface of the sliding plate (19) is provided with a fixed frame (23), the fixed frame (23) is a square frame body structure, the surface of the fixed frame (23) is slidingly connected with a handle (24), and the surface of the fixed frame (23) and the handle (24) is provided with a spring (25).
Citation Information
Patent Citations
Slideway structure of light and small kettle type heat exchanger
CN214747401U
Fixed tube plate heat exchanger capable of rapidly exchanging heat
CN216081084U