Pipeline connecting structure of tubular heat exchanger

Abstract

The utility model belongs to the technical field of tubular heat exchangers, and particularly relates to a pipeline connecting structure of a tubular heat exchanger, which comprises a tubular heat exchanger body, the lower side of the tubular heat exchanger body is fixedly connected with two uniformly distributed support frames, and the left part of the upper side of the tubular heat exchanger body is fixedly connected with a tube pass outlet. The left end of the tubular heat exchanger body is fixedly connected with a tube pass inlet, the inner wall of the tube pass inlet is slidably connected with a liquid inlet pipe, the left portion of the upper side of the tube pass inlet is fixedly connected with a mounting cylinder, and the inner wall of the mounting cylinder is slidably connected with an insertion rod. The liquid inlet pipe is pushed to be inserted into the tube pass inlet, the clamping block and the clamping groove are matched for use, the liquid inlet pipe can be inserted and limited so as to improve the connection stability between the liquid inlet pipe and the tube pass inlet, and the liquid inlet pipe can be inserted and connected under the structures of the insertion rod, the first spring and the like so as to ensure the connection stability of the liquid inlet pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of tubular heat exchangers, in particular to a pipeline connection structure of a tubular heat exchanger. Background Art

[0002] A tubular heat exchanger is a commonly used heat exchange device used to transfer heat energy from one fluid to another without direct contact between them. A tubular heat exchanger is usually composed of a series of parallel tubes, where one fluid flows through the inside of the tubes (tube side) and the other fluid flows through the outside of the tubes (shell side), transferring heat through the tube walls.

[0003] The utility model patent with publication number CN212778773U discloses a tubular heat exchanger, including a main body, a water guide, a chute and a panel; the side of the water guide is provided with a flange, and the water guide is installed on both sides of the main body; the chute is provided on the inner side of the main body, and the rotating rod outside the chute is installed on the side of the water guide; the panel has a fan-shaped structure, and a heat pipe is installed inside the panel; when the tubular heat exchanger is used, the fluid falls on the rotating plate, causing part of the fluid to flow out through the heat pipe, and the other part is pressed by the fluid to rotate the rotating plate, and is distributed in turn into different pipes and falls on the rotating plate below, which can evenly dissipate heat.

[0004] However, the existing pipe connection structure of the tubular heat exchanger still has certain shortcomings: the existing pipe connection structure of the tubular heat exchanger mostly uses flanges, bolts and other components to complete the connection of the liquid inlet pipe, and the use of bolts and flanges requires professional assembly tools, which is obviously inconvenient to use. Utility Model Content

[0005] The purpose of the utility model is to provide a pipe connection structure for a tubular heat exchanger, which solves the problem that the existing pipe connection structure of the tubular heat exchanger mostly uses flanges, bolts and other components to complete the connection of the liquid inlet pipe, and the use of bolts and flanges requires professional assembly tools, which is inconvenient to use.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a pipeline connection structure of a tubular heat exchanger, comprising a tubular heat exchanger body, wherein two evenly distributed support frames are fixedly connected to the lower side of the tubular heat exchanger body, a tube-side outlet is fixedly connected to the upper left portion of the tubular heat exchanger body, a tube-side inlet is fixedly connected to the left end of the tubular heat exchanger body, a liquid inlet pipe is slidably connected to the inner wall of the tube-side inlet, a mounting cylinder is fixedly connected to the upper left portion of the tube-side inlet, a plug rod is slidably connected to the inner wall of the mounting cylinder, the plug rod is slidably connected to the tube-side inlet, the plug rod is slidably connected to the liquid inlet pipe, the upper end of the plug rod is fixedly connected to an end plate, the end plate is in contact with the mounting cylinder, a spring is provided on the outer side of the plug rod, and a sealing mechanism is commonly provided on the tube-side inlet and the liquid inlet pipe.

[0007] Preferably, the horizontal portion of each support frame is provided with two waist grooves, and the two waist grooves are symmetrically distributed on the support frame. The setting of the waist grooves can be used for the subsequent installation of fastening bolts.

[0008] Preferably, the inner wall of the pipe inlet is provided with two symmetrically distributed card slots, and the inner wall of each card slot is slidably connected to a card block, and the card block is fixedly connected to the liquid inlet pipe. By using the card slot and the card block in combination, the liquid inlet pipe can be assisted in limiting.

[0009] Preferably, one end of the spring one is welded to the end disc, and the other end of the spring one is welded to the mounting tube. Through the setting of the spring one, the end disc can be connected for use.

[0010] Preferably, the sealing mechanism includes an annular groove, an annular groove is provided on the inner wall of the pipe inlet, an end ring is fixedly sleeved on the outer side of the liquid inlet, the end ring is slidingly connected to the pipe inlet, an annular groove is provided on the surface of the end ring, and two symmetrically distributed seals are slidingly connected to the inner wall of the annular groove, the two seals are in contact with each other, and each seal is in contact with the annular groove. By setting the sealing members, annular grooves and other structures, the end ring can be sealed, and then the liquid inlet pipe can be sealed.

[0011] Preferably, a second spring is bonded to the inner side surface of each seal, and the other end of the second spring is bonded to the inner side surface of the annular groove. The provision of the second spring allows the seal to be tightened for use.

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

[0013] 1. The utility model pushes the liquid inlet pipe into the pipe inlet. With the cooperation of the clamping block and the clamping groove, the liquid inlet pipe can be inserted and limited to improve the connection stability between the liquid inlet pipe and the pipe inlet. In addition, the liquid inlet pipe can be inserted and processed under the structure of the insertion rod and the spring to ensure the connection stability of the liquid inlet pipe.

[0014] 2. The utility model can seal the liquid inlet pipe through the coordinated use of end rings, annular grooves, sealing members and other structural parts. Under the deformation action of the second spring, the sealing member can be pushed to always fit the annular groove to ensure a good sealing effect of the liquid inlet pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0016] Figure 2 For the utility model Figure 1 The structure diagram of the inner wall of the pipe inlet;

[0017] Figure 3 For the utility model Figure 1 Front cross-sectional view of

[0018] Figure 4 For the utility model Figure 3 A magnified view of point A;

[0019] Figure 5 For the utility model Figure 2 Magnified view of the end ring;

[0020] Figure 6 For the utility model Figure 5 Diagram of the internal structure of the end ring.

[0021] In the figure: 1. Tubular heat exchanger body; 2. Support frame; 3. Tube outlet; 4. Tube inlet; 5. Liquid inlet pipe; 6. Clamping groove; 7. Clamping block; 8. Mounting cylinder; 9. Insert rod; 10. End plate; 11. Spring 1; 12. Sealing mechanism; 121. Annular groove; 122. End ring; 123. Annular groove; 124. Seal; 125. Spring 2. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6A pipeline connection structure of a tubular heat exchanger includes a tubular heat exchanger body 1, two evenly distributed support frames 2 are fixedly connected to the lower side of the tubular heat exchanger body 1, a tube-side outlet 3 is fixedly connected to the upper left side of the tubular heat exchanger body 1, a tube-side inlet 4 is fixedly connected to the left end of the tubular heat exchanger body 1, a liquid inlet pipe 5 is slidably connected to the inner wall of the tube-side inlet 4, a mounting cylinder 8 is fixedly connected to the upper left side of the tube-side inlet 4, a plug rod 9 is slidably connected to the inner wall of the mounting cylinder 8, the plug rod 9 is slidably connected to the tube-side inlet 4, the plug rod 9 is slidably connected to the liquid inlet pipe 5, an end plate 10 is fixedly connected to the upper end of the plug rod 9, the end plate 10 is in contact with the mounting cylinder 8, and a spring 11 is provided on the outside of the plug rod 9.

[0024] See also Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 , each support frame 2 has two waist grooves on its horizontal part, and the two waist grooves are symmetrically distributed on the support frame 2. Through the setting of the waist grooves, they can be used for the subsequent installation of fastening bolts. The inner wall of the pipe inlet 4 has two symmetrically distributed card grooves 6. The inner wall of each card groove 6 is slidably connected with a card block 7. The card block 7 is fixedly connected to the liquid inlet pipe 5. Through the coordinated use of the card groove 6 and the card block 7, the liquid inlet pipe 5 can be assisted in limiting. One end of the spring 11 is welded to the end plate 10, and the other end of the spring 11 is welded to the mounting tube 8. Through the setting of the spring 11, the end plate 10 can be connected and used.

[0025] See also Figure 1 、 Figure 2 、 Figure 5 、 Figure 6 , a sealing mechanism 12 is commonly provided on the pipe-side inlet 4 and the liquid inlet pipe 5, the sealing mechanism 12 includes an annular groove 121, an annular groove 121 is provided on the inner wall of the pipe-side inlet 4, an end ring 122 is fixedly sleeved on the outer side of the liquid inlet pipe 5, the end ring 122 is slidingly connected to the pipe-side inlet 4, an annular groove 123 is provided on the surface of the end ring 122, and two symmetrically distributed sealing members 124 are slidingly connected to the inner wall of the annular groove 123, the two sealing members 124 are in contact with each other, each sealing member 124 is in contact with the annular groove 121, and a spring 2 125 is bonded to the inner side surface of each sealing member 124, the other end of the spring 2 125 is bonded to the inner side surface of the annular groove 123, and the setting of the spring 2 125 can tighten the sealing member 124, and the setting of the sealing member 124, the annular groove 121 and other structures can seal the end ring 122, and then seal the liquid inlet pipe 5.

[0026] The specific implementation process of the utility model is as follows: when in use, by pulling the end plate 10 upward to move the insertion rod 9, the spring 11 is deformed, and then the liquid inlet pipe 5 is pushed to be inserted into the pipe-side inlet 4, so as to drive the clamping block 7 to be inserted into the clamping groove 6, and the sealing mechanism 12 is inserted into the pipe-side inlet 4, and then the end plate 10 is loosened to allow the spring 11 to recover its deformation, so as to drive the insertion rod 9 to pass through the liquid inlet pipe 5, position the liquid inlet pipe 5, and quickly connect the liquid inlet pipe 5 and the pipe-side inlet 4 for use;

[0027] During this process, when the liquid inlet pipe 5 is inserted into the pipe-side inlet 4, the seal 124 moves under the extrusion of the port of the pipe-side inlet 4, and the seal 124 slides along the inner wall of the annular groove 123 to ensure the stable movement of the seal 124, and the spring 2 125 is deformed, and the end faces of the two seals 124 contact each other. Under the action of force, the seal 124 slides along the inner wall of the pipe-side inlet 4, and finally the seal 124 is squeezed into the annular groove 121 to seal the end ring 122. Under the deformation action of the spring 2 125, the seal 124 can always be in contact with the annular groove 121, avoiding the problem of weak sealing effect after aging of the seal 124.

[0028] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pipe connection structure of a tubular heat exchanger, comprising a tubular heat exchanger body (1), characterized in that: The lower side of the tubular heat exchanger body (1) is fixedly connected to two evenly distributed support frames (2); the upper left side of the tubular heat exchanger body (1) is fixedly connected to a tube-side outlet (3); the left end of the tubular heat exchanger body (1) is fixedly connected to a tube-side inlet (4); the inner wall of the tube-side inlet (4) is slidably connected to a liquid inlet pipe (5); the upper left side of the tube-side inlet (4) is fixedly connected to a mounting cylinder (8); the inner wall of the mounting cylinder (8) is slidably connected to a plug rod (9); the plug rod (9) is slidably connected to the tube-side inlet (4); the plug rod (9) is slidably connected to the liquid inlet pipe (5); the upper end of the plug rod (9) is fixedly connected to an end plate (10); the end plate (10) contacts the mounting cylinder (8); a spring (11) is provided on the outer side of the plug rod (9); and a sealing mechanism (12) is provided on the tube-side inlet (4) and the liquid inlet pipe (5).

2. The pipe connection structure of a tubular heat exchanger according to claim 1, characterized in that: The horizontal portion of each support frame (2) is provided with two waist grooves, and the two waist grooves are symmetrically distributed on the support frame (2).

3. The pipe connection structure of a tubular heat exchanger according to claim 1, characterized in that: The inner wall of the pipe-side inlet (4) is provided with two symmetrically distributed card slots (6), and the inner wall of each card slot (6) is slidably connected to a card block (7), and the card block (7) is fixedly connected to the liquid inlet pipe (5).

4. The pipe connection structure of a tubular heat exchanger according to claim 1, characterized in that: One end of the spring one (11) is welded to the end plate (10), and the other end of the spring one (11) is welded to the mounting tube (8).

5. The pipe connection structure of a tubular heat exchanger according to claim 1, characterized in that: The sealing mechanism (12) includes an annular groove (121), the inner wall of the pipe-side inlet (4) is provided with an annular groove (121), the outer side of the liquid inlet pipe (5) is fixedly sleeved with an end ring (122), the end ring (122) is slidably connected to the pipe-side inlet (4), the surface of the end ring (122) is provided with an annular groove (123), the inner wall of the annular groove (123) is slidably connected with two symmetrically distributed sealing members (124), the two sealing members (124) are in contact with each other, and each sealing member (124) is in contact with the annular groove (121).

6. The pipe connection structure of a tubular heat exchanger according to claim 5, characterized in that: The inner side surface of each sealing member (124) is bonded with a second spring (125), and the other end of the second spring (125) is bonded to the inner side surface of the annular groove (123).

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