Connecting pipe assembling structure of plate heat exchanger

Abstract

The utility model relates to the technical field of plate heat exchanger connecting pipes, and particularly discloses a plate heat exchanger connecting pipe assembling structure which comprises a heat exchanger body, an adapting pipe is fixedly installed at the front end of the heat exchanger body, a connecting pipe penetrates out of the adapting pipe, and a compensation pipeline is embedded in the end, penetrating into the adapting pipe, of the connecting pipe. A mounting mechanism is arranged outside the connecting pipe; the mounting mechanism comprises an abutting plate, the abutting plate is fixedly mounted on the outer wall of the connecting pipe, a limiting rod is fixedly mounted on the outer wall, facing the adapting pipe, of the abutting plate, and a limiting hole is formed in the position, corresponding to the limiting rod, of the outer wall of the adapting pipe. The connecting pipe and the heat exchanger main body can be quickly disassembled and assembled through cooperation with the abutting plate, the limiting rod, the limiting hole, the sealing gasket, the sleeve, the inflation inlet and the air cushion, the sealing performance is kept, and meanwhile the situation that medium circulation is affected due to rotation is avoided.

Description

Technical Field

[0001] This utility model relates to the field of plate heat exchanger nozzle technology, and in particular to a plate heat exchanger nozzle assembly structure. Background Technology

[0002] Plate heat exchangers are composed of plate heat exchanger plates, plate heat exchanger gaskets, fixed pressure plates, movable pressure plates, clamping bolts, upper guide rods, lower guide rods, and rear columns. Under the same pressure loss, their heat transfer coefficient is 3 to 5 times higher than that of tube heat exchangers, their floor space is one-third that of tube heat exchangers, and their heat recovery rate can be as high as 90% or more. However, in the manufacturing and use of plate heat exchangers, the reliability of the heat exchanger body and connecting pipes directly affects the quality of the heat exchanger.

[0003] In existing technologies, when connecting plate heat exchangers to pipes, the commonly used assembly structure is welding, which results in low efficiency during processing and requires the cooperation of multiple people to assemble, thus wasting human resources.

[0004] An existing patent (publication number: CN219284078U) discloses a plate heat exchanger nozzle assembly structure. This utility model uses a first bolt to fix a first limiting ring to the heat exchanger, and a hydraulic cylinder body to tightly hold two clamping plates against the upper and lower parts of the nozzle body, increasing the stability of the nozzle body during assembly within the heat exchange tube. A second bolt fixes a second limiting ring to the nozzle body, and four tie bolts further secure the first and second limiting rings to the heat exchange tube and nozzle body. This increases the pressure and fixation of the heat exchange tube and nozzle during assembly, making the connection between the heat exchange tube and nozzle of the plate heat exchanger more stable and convenient, less prone to separation, and improving the overall practicality of the structure. Furthermore, it eliminates the need for manual welding during assembly.

[0005] To address the aforementioned issues, existing patents offer solutions that can avoid welding through the cooperation of components such as the first limiting ring, allowing for assembly. However, in actual use, assembly requires multiple steps, making it rather cumbersome. Summary of the Invention

[0006] The purpose of this utility model is to provide a plate heat exchanger pipe assembly structure that allows for quick assembly and disassembly of the connecting pipe and the heat exchanger body while maintaining a tight seal, and prevents rotation that could affect the flow of the medium, thereby solving the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a plate heat exchanger nozzle assembly structure, comprising a heat exchanger body, a receiving pipe fixedly installed at the front end of the heat exchanger body, and a connecting pipe extending through the inside of the receiving pipe, a compensation pipe being embedded in the end of the connecting pipe that enters the receiving pipe, and an installation mechanism being provided on the outside of the connecting pipe.

[0008] The installation mechanism includes an abutment plate, which is fixedly installed on the outer wall of the connecting pipe. A limit rod is fixedly installed on the abutment plate facing the outer wall of the receiving pipe. A limit hole is opened on the outer wall of the receiving pipe at the position corresponding to the limit rod. A sealing gasket is embedded inside the receiving pipe. A sleeve is fitted on the outside of the receiving pipe, and an air inlet is embedded on the outer wall of the sleeve. An air cushion is embedded inside the sleeve facing the connecting pipe.

[0009] Preferably, the sealing gasket is bonded to the connecting pipe, and the sealing gasket is tightly fitted to the connecting pipe.

[0010] Preferably, the sleeve is threadedly connected to the receiving pipe, and a sliding structure is formed between the sleeve and the connecting pipe.

[0011] Preferably, a connecting mechanism is provided on one side of the sleeve. The connecting mechanism includes a first connecting rod, which is slidably connected to the outer wall of the sleeve facing the heat exchanger body. A limit block is fixedly installed at one end of the first connecting rod that enters the sleeve, and an exit rod extends from the other end of the first connecting rod away from the sleeve.

[0012] Preferably, the connecting mechanism further includes a second connecting rod, which is sleeved on the end of the protruding rod away from the first connecting rod, and a connecting sleeve is slidably connected to the outside of the first connecting rod.

[0013] Preferably, the second connecting rod and the through rod form a sliding structure, and the second connecting rod is threadedly connected to the connecting sleeve.

[0014] Preferably, the first connecting rod forms a sliding structure with the sleeve through the limiting block, and the first connecting rod is threadedly connected to the connecting sleeve.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. Through the heat exchanger body, receiving pipe, connecting pipe and compensation pipe, and with the cooperation of the contact plate, limit rod, limit hole, sealing gasket, sleeve, air inlet and air cushion, the connecting pipe and the heat exchanger body can be quickly disassembled and assembled, while maintaining the seal, and at the same time avoiding rotation, which would affect the flow of the medium;

[0017] 2. Through the cooperation of the first connecting rod, the limiting block, the through rod, the second connecting rod and the connecting sleeve, the connection stability can be further improved after the connecting pipe and the heat exchanger body are connected, and the sleeve can be limited to prevent loosening. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is an overall structural view of the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of the limiting rod of this utility model;

[0021] Figure 3 This is a schematic diagram of the limiting hole of this utility model;

[0022] Figure 4 This is a schematic diagram of the connecting sleeve of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Heat exchanger body; 2. Receiving pipe; 3. Connecting pipe; 4. Compensating pipe; 5. Installation mechanism; 501. Contact plate; 502. Limiting rod; 503. Limiting hole; 504. Sealing gasket; 505. Sleeve; 506. Air inlet; 507. Air cushion; 6. Connecting mechanism; 601. First connecting rod; 602. Limiting block; 603. Through rod; 604. Second connecting rod; 605. Connecting sleeve. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] This utility model provides a technical solution:

[0027] Please see Figures 1 to 3A plate heat exchanger nozzle assembly structure includes a heat exchanger body 1, a receiving pipe 2 fixedly installed at the front end of the heat exchanger body 1, a connecting pipe 3 extending from the inside of the receiving pipe 2, a compensation pipe 4 embedded in one end of the connecting pipe 3 that enters the receiving pipe 2, and an installation mechanism 5 provided on the outside of the connecting pipe 3; the installation mechanism 5 includes an abutment plate 501, the abutment plate 501 fixedly installed on the outer wall of the connecting pipe 3, and a limit rod 502 fixedly installed on the abutment plate 501 facing the outer wall of the receiving pipe 2. A limiting hole 503 is provided at the position corresponding to the limiting rod 502 on the wall. A sealing gasket 504 is embedded inside the receiving pipe 2. A sleeve 505 is sleeved on the outside of the receiving pipe 2. An air inlet 506 is embedded on the outer wall of the sleeve 505. An air cushion 507 is embedded inside the sleeve 505 facing the connecting pipe 3. The sealing gasket 504 is bonded to the receiving pipe 2 and fits tightly with the connecting pipe 3. The sleeve 505 is threaded to the receiving pipe 2, and a sliding structure is formed between the sleeve 505 and the connecting pipe 3.

[0028] By adopting the above technical solution, the connecting pipe 3 first passes through the receiving pipe 2 and is inserted into the heat exchanger body 1 for connection. The compensating pipe 4 prevents thermal expansion and contraction, and the limiting rod 502, which is fixed by the contact plate 501, passes through the limiting hole 503 of the receiving pipe 2 to prevent the connecting pipe 3 from rotating and affecting the flow. At the same time, the sealing gasket 504 provides a sealing effect. The sleeve 505 moves through the threaded connection with the receiving pipe 2 and covers the outside of the connecting pipe 3. Gas is filled into the air pad 507 through the air inlet 506, so that it can be fixed against one end of the contact plate 501, thereby enabling quick disassembly and assembly, and facilitating subsequent disassembly and maintenance.

[0029] Specifically, such as Figure 1 and Figure 4 As shown, a connecting mechanism 6 is provided on one side of the sleeve 505. The connecting mechanism 6 includes a first connecting rod 601, which is slidably connected to the outer wall of the sleeve 505 facing the heat exchanger body 1. A limiting block 602 is fixedly installed at one end of the first connecting rod 601 that penetrates into the sleeve 505. A protruding rod 603 protrudes from the other end of the first connecting rod 601 away from the sleeve 505. The connecting mechanism 6 also includes a second connecting rod 604, which is sleeved on the end of the protruding rod 603 away from the first connecting rod 601. A connecting sleeve 605 is slidably connected to the outside of the first connecting rod 601. A sliding structure is formed between the second connecting rod 604 and the protruding rod 603. The second connecting rod 604 is threadedly connected to the connecting sleeve 605. The first connecting rod 601 forms a sliding structure with the sleeve 505 through the limiting block 602. The first connecting rod 601 is threadedly connected to the connecting sleeve 605.

[0030] By adopting the above technical solution, a telescopic rod is first formed by the first connecting rod 601, the through rod 603, and the second connecting rod 604. The first connecting rod 601 is slidably connected to the sleeve 505 via the limiting block 602 to prevent the sleeve 505 from being limited when moving along the receiving pipe 2. The second connecting rod 604 is fixed on the heat exchanger body 1. When the position of the sleeve 505 is determined, the first connecting rod 601 and the second connecting rod 604 are simultaneously sleeved on the outside of the connecting sleeve 605 and threaded together, thereby achieving a fixing effect and further improving the stability of the sleeve 505 and the stability of the pipeline connection.

[0031] Working principle: The connecting pipe 3 is inserted into the through-connector pipe 2 and then into the heat exchanger body 1. The compensating pipe 4 prevents thermal expansion and contraction. The connecting pipe 3 is fixed to the contact plate 501, which is limited by the limit rod 502 inserted into the limit hole 503 to prevent rotation. The sealing gasket 504 improves the seal. The sleeve 505 is threaded to the through-connector pipe 2 and rotates, thus covering the connecting pipe 3 on one side of the contact plate 501. Gas is injected through the air inlet 506, causing the air cushion 507 to push against the contact plate 501, ensuring connection stability and preventing rotation. The air inlet 506 is equipped with a threaded cap for easy disassembly and assembly. It is connected to the first connecting rod 601, the through rod 603, and the second connecting rod 604 to form a telescopic rod. One end is fixed to the heat exchanger body 1, and the other end slides through the pre-reserved groove of the sleeve 505 via the limiting block 602. This allows the sleeve 505 to be connected and avoids affecting rotation. After the position is adjusted, the through rod 603 is covered by the connecting sleeve 605 and threadedly connected to the first connecting rod 601 and the second connecting rod 604, further improving the stability of the connection and preventing the sleeve 505 from loosening.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A plate heat exchanger nozzle assembly structure, comprising a heat exchanger body (1), characterized in that: The heat exchanger body (1) is fixedly installed with a receiving pipe (2) at the front end, and a connecting pipe (3) extends through the inside of the receiving pipe (2). A compensation pipe (4) is embedded in the end of the connecting pipe (3) that enters the receiving pipe (2), and an installation mechanism (5) is provided on the outside of the connecting pipe (3). The installation mechanism (5) includes an abutment plate (501), which is fixedly installed on the outer wall of the connecting pipe (3). A limit rod (502) is fixedly installed on the outer wall of the receiving pipe (2) facing the abutment plate (501). A limit hole (503) is opened on the outer wall of the receiving pipe (2) corresponding to the position of the limit rod (502). A sealing gasket (504) is embedded inside the receiving pipe (2). A sleeve (505) is sleeved on the outside of the receiving pipe (2). An air inlet (506) is embedded on the outer wall of the sleeve (505). An air cushion (507) is embedded inside the sleeve (505) facing the connecting pipe (3).

2. The plate heat exchanger nozzle assembly structure according to claim 1, characterized in that: The sealing gasket (504) is bonded to the receiving pipe (2), and the sealing gasket (504) is tightly fitted to the connecting pipe (3).

3. The plate heat exchanger nozzle assembly structure according to claim 1, characterized in that: The sleeve (505) is threadedly connected to the receiving pipe (2), and the sleeve (505) and the connecting pipe (3) form a sliding structure.

4. The plate heat exchanger nozzle assembly structure according to claim 1, characterized in that: A connecting mechanism (6) is provided on one side of the sleeve (505). The connecting mechanism (6) includes a first connecting rod (601). The first connecting rod (601) is slidably connected to the outer wall of the sleeve (505) facing the heat exchanger body (1). A limit block (602) is fixedly installed at one end of the first connecting rod (601) that penetrates into the sleeve (505). A protruding rod (603) protrudes from the other end of the first connecting rod (601) that is away from the sleeve (505).

5. The plate heat exchanger nozzle assembly structure according to claim 4, characterized in that: The connecting mechanism (6) further includes a second connecting rod (604), which is sleeved on the end of the through rod (603) away from the first connecting rod (601), and a connecting sleeve (605) is slidably connected to the outside of the first connecting rod (601).

6. The plate heat exchanger nozzle assembly structure according to claim 5, characterized in that: The second connecting rod (604) and the through rod (603) form a sliding structure, and the second connecting rod (604) is threadedly connected to the connecting sleeve (605).

7. The plate heat exchanger nozzle assembly structure according to claim 5, characterized in that: The first connecting rod (601) forms a sliding structure with the sleeve (505) through the limiting block (602), and the first connecting rod (601) is threadedly connected to the connecting sleeve (605).

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