Shell-and-tube heat exchanger capable of preventing deformation and fracture of connecting tube

Abstract

The utility model belongs to the technical field of shell-and-tube heat exchangers, and particularly relates to a shell-and-tube heat exchanger capable of preventing deformation and fracture of a connecting pipe, which comprises a heat exchanger body, a water inlet arranged on the left side of the upper portion of the heat exchanger body, and a water outlet arranged on the right side of the upper portion of the heat exchanger body. The lower side of the heat exchanger body is fixedly connected with two symmetrically-distributed mounting frames, the left end and the right end of the heat exchanger body are both in contact with end covers, and the interiors of the end covers are movably connected with a plurality of bolts arranged in an annular array. The reinforcing cylinder is pushed to be connected to the outer side of the water outlet connecting pipe in a sleeving mode, the reinforcing cylinder can be supported for use under the structures of the supporting rod, the supporting disc and the like, the reinforcing cylinder can elastically support the water outlet connecting pipe in cooperation with the arrangement of the first spring and the supporting frame, the reinforcing effect on the water outlet connecting pipe can be improved, and the service life of the water outlet connecting pipe is prolonged. And the problems of rigid damage and breakage of the water outlet connecting pipe can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of shell-and-tube heat exchangers, and particularly relates to a shell-and-tube heat exchanger for preventing the deformation and fracture of connecting pipes. Background Art

[0002] As is well known, a shell-and-tube heat exchanger is a common heat exchange device used to achieve heat transfer between two fluids. It consists of a shell and multiple tubes. One fluid flows inside the tubes, and the other fluid flows inside the shell. Heat transfer is achieved through heat conduction between the shell and the tubes.

[0003] The utility model patent with the publication number of CN203964723U discloses a shell-and-tube heat exchanger, which includes a horizontal tank body. One end of the tank body is connected with a front end cover, and the other end is connected with a rear end cover. A heat medium inlet and a maintenance hole are provided on the upper surface of the tank body, a heat medium outlet is provided on the lower surface of the tank body, tube sheets are provided at both ends of the tank body, and multiple parallel heat exchange tubes are arranged between the tube sheets. Both ends of the heat exchange tubes pass through the tube sheets and are connected with the front end cover and the rear end cover. An inlet is provided on the upper surface of the front end cover, an outlet is provided on the lower surface of the front end cover, and a partition for separating cold and hot water is arranged inside the front end cover. A sewage discharge port is provided at the bottom of the rear end cover. This shell-and-tube heat exchanger has a simple structure and a reasonable design. It is provided with multiple heat exchange tubes, which improves the heating effect, and is provided with a sewage discharge port for easy cleaning.

[0004] However, there are still certain deficiencies in the existing shell-and-tube heat exchangers: when the existing shell-and-tube heat exchangers heat and transport water, an outlet connecting pipe is used to conduct the water. Due to the fluid stress generated by the instantaneously flowing water, it will not only cause a hard impact on the outlet connecting pipe, but may even cause the risk of fracture of the overly long outlet connecting pipe due to weak support strength. Content of the Utility Model

[0005] The purpose of the utility model is to provide a shell-and-tube heat exchanger for preventing the deformation and fracture of connecting pipes, which solves the problem that when the existing shell-and-tube heat exchangers heat and transport water, an outlet connecting pipe is used to conduct the water. Due to the fluid stress generated by the instantaneously flowing water, it will not only cause a hard impact on the outlet connecting pipe, but may even cause the risk of fracture of the overly long outlet connecting pipe due to weak support strength.

[0006] To achieve the above object, the present utility model provides the following technical solution: a shell-and-tube heat exchanger for preventing the deformation and fracture of a connecting pipe, including a heat exchanger body. An inlet is provided on the upper left side of the heat exchanger body, and an outlet is provided on the upper right side of the heat exchanger body. Two symmetrically distributed mounting brackets are fixedly connected to the lower side of the heat exchanger body. End covers are in contact with both the left and right ends of the heat exchanger body. A plurality of bolts arranged in a circular array are movably connected inside the end covers, and each bolt is threadedly connected to the nut of the heat exchanger body. An outlet connecting pipe is provided at the upper end of the outlet. A support mechanism is provided on both the outlet connecting pipe and the heat exchanger body, and an energy release mechanism is provided inside the outlet connecting pipe.

[0007] Preferably, the support mechanism includes a support frame. A support frame is fixedly connected to the upper side of the heat exchanger body and on the right side of the outlet. A reinforcing cylinder is slidably sleeved on the outer side of the horizontal part of the outlet connecting pipe. End plates are fixedly connected to both the front and rear sides of the reinforcing cylinder. A support rod is slidably connected inside each end plate, and the support rod is slidably connected to the upper horizontal part of the support frame. A support disk is fixedly sleeved on the outer side of the support rod, and the support disk is in contact with the upper horizontal part of the support frame. A first spring is provided on the outer side of the support rod. Through the arrangement of structures such as the support rod, the support disk, and the support frame, the reinforcing cylinder can be supported, and under the action of the first spring, the reinforcing cylinder can have a certain elastic protection effect, thereby supporting and strengthening the outlet connecting pipe and avoiding the risk of fracture of the too-long outlet connecting pipe.

[0008] Preferably, one end of the first spring is welded to the support disk, and the other end of the first spring is welded to the end plate. Through the setting of the first spring, the support disk can be connected and used.

[0009] Preferably, the energy release mechanism includes a diversion cylinder. A diversion cylinder is fixedly connected to the vertical part of the outlet connecting pipe. A fixed disk is fixedly connected to the inner wall of the diversion cylinder. A telescopic rod is slidably connected inside the fixed disk. The right end of the telescopic rod is fixedly connected to a contact head, and the contact head is slidably connected to the diversion cylinder. A friction block is fixedly connected inside the contact head, and the friction block is slidably connected to the diversion cylinder. A second spring is provided on the outer side of the telescopic rod. Through the arrangement of the contact head, the friction block, and the second spring, the fluid stress generated instantaneously by the water body can be offset and released, avoiding the problem of hard impact damage to the outlet connecting pipe.

[0010] Preferably, one end of the second spring is fixedly connected to the contact head, and the other end of the second spring is welded to the fixed disk. Through the setting of the second spring, the contact head can be connected and used.

[0011] Preferably, an elastic ball is fixedly connected to the left end of the telescopic rod, and the elastic ball is slidably connected to the diversion cylinder. Through the setting of the elastic ball, the fluid stress can be assisted in being released.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. In the present utility model, by pushing the reinforcement cylinder to be sleeved outside the water outlet connection pipe, and under the structures such as the support rod and the support plate, the reinforcement cylinder can be supported and used, and with the arrangement of the first spring and the support frame, the reinforcement cylinder can elastically support the water outlet connection pipe, which can not only improve the reinforcement effect on the water outlet connection pipe, but also avoid the problems of hard damage and fracture of the water outlet connection pipe.

[0014] 2. In the present utility model, through the arrangement of the diversion cylinder, the water flowing instantaneously can be diverted. Under the structures such as the contact head and the second spring, the fluid stress generated instantaneously can be released, and under the deformation effect of the elastic ball, the fluid stress can be assisted in releasing treatment, avoiding the problem of hard impact damage of the water outlet connection pipe. Description of the Drawings

[0015] Figure 1 is the three-dimensional view of the overall structure of the present utility model;

[0016] Figure 2 is the Figure 1 front elevation sectional view of the present utility model;

[0017] Figure 3 is the Figure 1 enlarged view at A of the present utility model;

[0018] Figure 4 is the Figure 2 enlarged view of the energy release mechanism of the present utility model.

[0019] In the figure: 1. Heat exchanger body; 2. Water inlet; 3. Water outlet; 4. Mounting frame; 5. End cover; 6. Bolt; 7. Water outlet connection pipe; 8. Support mechanism; 9. Energy release mechanism; 81. Support frame; 82. Reinforcement cylinder; 83. End plate; 84. Support rod; 85. Support plate; 86. First spring; 91. Diversion cylinder; 92. Fixed plate; 93. Expansion rod; 94. Contact head; 95. Friction block; 96. Second spring; 97. Elastic ball. Detailed Embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0021] Please refer to Figure 1 、Figure 2 , Figure 3 , Figure 4 , a shell-and-tube heat exchanger that prevents takeover deformation and fracture, including a heat exchanger body 1. An inlet 2 is provided on the upper left side of the heat exchanger body 1, and an outlet 3 is provided on the upper right side of the heat exchanger body 1. Two symmetrically distributed mounting brackets 4 are fixedly connected to the lower side of the heat exchanger body 1. End caps 5 are in contact with both the left and right ends of the heat exchanger body 1. A plurality of bolts 6 arranged in a circular array are movably connected inside the end caps 5. Each bolt 6 is threadedly connected to the nut of the heat exchanger body 1. An outlet pipe 7 is provided at the upper end of the outlet 3.

[0022] Please refer to Figure 1 , Figure 2 , Figure 3 , a support mechanism 8 is jointly provided on the outlet pipe 7 and the heat exchanger body 1. The support mechanism 8 includes a support frame 81. The support frame 81 is fixedly connected to the upper side of the heat exchanger body 1 and on the right side of the outlet 3. A reinforcement cylinder 82 is slidably sleeved on the outer side of the horizontal part of the outlet pipe 7. End plates 83 are fixedly connected to both the front and rear sides of the reinforcement cylinder 82. A support rod 84 is slidably connected inside each end plate 83. The support rod 84 is slidably connected to the upper horizontal part of the support frame 81. A support disc 85 is fixedly sleeved on the outer side of the support rod 84. The support disc 85 is in contact with the upper horizontal part of the support frame 81. A first spring 86 is provided on the outer side of the support rod 84. One end of the first spring 86 is welded to the support disc 85, and the other end of the first spring 86 is welded to the end plate 83. Through the setting of the first spring 86, the support disc 85 can be connected and used. Through the settings of the support rod 84, the support disc 85, the support frame 81 and other structures, the reinforcement cylinder 82 can be supported, and under the action of the first spring 86, the reinforcement cylinder 82 can have a certain elastic protection effect, thereby supporting and strengthening the outlet pipe 7 and avoiding the risk of fracture of the too-long outlet pipe 7.

[0023] Please refer to Figure 1 , Figure 2 , Figure 4 , an energy release mechanism 9 is provided inside the outlet pipe 7. The energy release mechanism 9 includes a diversion cylinder 91. The diversion cylinder 91 is fixedly connected to the vertical part of the outlet pipe 7. A fixed disc 92 is fixedly connected to the inner wall of the diversion cylinder 91. A telescopic rod 93 is slidably connected inside the fixed disc 92. The right end of the telescopic rod 93 is fixedly connected to a contact head 94. The contact head 94 is slidably connected to the diversion cylinder 91. A friction block 95 is fixedly connected inside the contact head 94. The friction block 95 is slidably connected to the diversion cylinder 91. A second spring 96 is provided on the outer side of the telescopic rod 93. Through the settings of the contact head 94, the friction block 95 and the second spring 96, the fluid stress generated instantaneously by the water body can be offset and released, avoiding the problem of hard impact damage to the outlet pipe 7.

[0024] Please refer toFigure 1 , Figure 2 , Figure 4 , one end of the second spring 96 is fixedly connected to the contact head 94, and the other end of the second spring 96 is welded to the fixed disk 92. Through the arrangement of the second spring 96, the contact head 94 can be connected and used. An elastic ball 97 is fixedly connected to the left end of the telescopic rod 93, and the elastic ball 97 is slidably connected to the flow guide cylinder 91. Through the arrangement of the elastic ball 97, the fluid stress can be assisted in releasing.

[0025] The specific implementation process of the present utility model is as follows: When in use, by pulling the support rod 84 upward to drive the support disk 85 to move, the first spring 86 deforms, and then the reinforcement cylinder 82 is pushed to sleeve outside the horizontal part of the water outlet connecting pipe 7, and the support rod 84 is released, so that the support rod 84 passes through the upper horizontal part of the support frame 81, and the support disk 85 contacts the upper horizontal part of the support frame 81 to support and reinforce the water outlet connecting pipe 7, avoiding the risk of fracture caused by hard impact of the water outlet connecting pipe 7.

[0026] Through the arrangement of the flow guide cylinder 91, the water flowing instantaneously can be guided, so that the water contacts the contact head 94. Under the impact of the fluid stress of the water, the contact head 94 can be pushed to move to the left, and the friction block 95 is driven to slide along the inner wall of the flow guide cylinder 91, and the second spring 96 deforms to release the fluid stress generated by the water flowing instantaneously. When the contact head 94 moves, the telescopic rod 93 can be pushed to move to drive the elastic ball 97 to move, and finally the elastic ball 97 contacts the inner left side wall of the flow guide cylinder 91, and then the elastic ball 97 deforms. Under the action of the elastic ball 97, the fluid stress generated by the water can be assisted in releasing, avoiding the problem of damage to the pipe wall of the water outlet connecting pipe 7 caused by hard impact.

[0027] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A shell and tube heat exchanger for preventing tube deformation and fracture, comprising a heat exchanger body (1), characterized in that: The heat exchanger body (1) is provided with a water inlet (2) on the left side of the upper part, and a water outlet (3) is provided on the right side of the upper part. Two symmetrically distributed mounting frames (4) are fixedly connected to the lower side of the heat exchanger body (1). The left and right ends of the heat exchanger body (1) are both in contact with end covers (5). The end covers (5) are movably connected to a plurality of bolts (6) arranged in a circular array. Each of the bolts (6) is connected to a nut of the heat exchanger body (1) by a thread. A water outlet pipe (7) is provided at the upper end of the water outlet (3). A supporting mechanism (8) is provided on the water outlet pipe (7) and the heat exchanger body (1). An energy release mechanism (9) is provided inside the water outlet pipe (7).

2. A shell and tube heat exchanger for preventing tube deformation and fracture according to claim 1, characterized in that: The support mechanism (8) comprises a support frame (81), the support frame (81) is fixedly connected to the upper side of the heat exchanger body (1) and located on the right side of the water outlet (3), a reinforcement tube (82) is slidably sleeved on the outer side of the horizontal part of the water outlet pipe (7), the front and rear sides of the reinforcement tube (82) are fixedly connected to end plates (83), the interior of each end plate (83) is slidably connected to a support rod (84), the support rod (84) is slidably connected to the upper horizontal part of the support frame (81), a support plate (85) is fixedly sleeved on the outer side of the support rod (84), the support plate (85) is in contact with the upper horizontal part of the support frame (81), and a spring (86) is arranged on the outer side of the support rod (84).

3. A shell and tube heat exchanger for preventing tube deformation and fracture according to claim 2, characterized in that: One end of the spring one (86) is welded to the support plate (85), and the other end of the spring one (86) is welded to the end plate (83).

4. The shell and tube heat exchanger for preventing tube deformation and fracture according to claim 1, characterized in that: The energy release mechanism (9) comprises a guide tube (91), the vertical portion of the water outlet pipe (7) is fixedly connected to the guide tube (91), the inner wall of the guide tube (91) is fixedly connected to a fixed plate (92), the interior of the fixed plate (92) is slidably connected to a telescopic rod (93), the right end of the telescopic rod (93) is fixedly connected to a contact head (94), the contact head (94) is slidably connected to the guide tube (91), the interior of the contact head (94) is fixedly connected to a friction block (95), the friction block (95) is slidably connected to the guide tube (91), and a second spring (96) is arranged on the outer side of the telescopic rod (93).

5. A shell and tube heat exchanger for preventing tube deformation and fracture according to claim 4, characterized in that: One end of the second spring (96) is fixedly connected to the contact head (94), and the other end of the second spring (96) is welded to the fixed plate (92).

6. A shell and tube heat exchanger for preventing tube deformation and fracture according to claim 4, characterized in that: The left end of the telescopic rod (93) is fixedly connected to an elastic ball (97), and the elastic ball (97) is slidably connected to the guide tube (91).

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