Heat exchanger end socket connecting device

Abstract

The utility model relates to the technical field of heat exchanger equipment, and discloses a heat exchanger end socket connecting device which comprises a heat exchanger body, a heat exchanger external connecting box is arranged at the top end of the heat exchanger body, and an external connector is arranged on the other side of an external connecting pipe. The top of the heat exchanger main body is provided with the end socket body, the end socket body is arranged on the top of the heat exchanger main body, and the heat exchanger external box is tightly connected with the end socket body through an arranged end socket connecting and sealing assembly. The sealing head body and the heat exchanger external box can be firmly connected, meanwhile, the connection sealing performance between the sealing head body and the heat exchanger external box is improved, the problem that a welding seam is prone to cracking in the traditional welding process is solved, connection between the sealing head body and the heat exchanger main body is more stable and closed, and the sealing head body is not prone to cracking. The safe heat exchange operation efficiency of the heat exchanger main body is effectively improved, and the use of a user is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchanger equipment, in particular to a heat exchanger head connecting device. Background Art

[0002] A heat exchanger is an energy-saving device that realizes heat transfer between materials among two or more fluids at different temperatures. It enables heat to be transferred from a fluid with a higher temperature to a fluid with a lower temperature, so that the temperature of the fluid reaches the specified index of the process, to meet the needs of process conditions. At the same time, it is also one of the main devices for improving energy utilization efficiency.

[0003] After retrieval, the authorized Chinese patent publication number CN 207268584 U discloses a heat exchanger head, including: a joint, a blank cover, a nozzle, a head, a baffle, and a backing plate; the joint, the blank cover, the nozzle, and the head are connected in sequence; an arc-shaped baffle is welded on the inner wall arc surface of the head; a backing plate is welded at the bottom of the head; the backing plate and the baffle are connected by welding. This utility model increases the welding area by welding a backing plate at the bottom of the head, thereby improving the pressure-bearing capacity and welding strength of the heat exchanger.

[0004] There are still certain deficiencies in the heat exchanger head connecting device in the above patent. For the existing connection of heat exchanger heads, most are fixedly connected by welding. However, due to the relatively high working pressure inside the heat exchanger, and during use, if there is a certain vibration, it is very easy to cause cracks at the welded joint of the head, resulting in leakage problems at the connection between the head and the heat exchanger, greatly reducing the heat exchange efficiency of the heat exchanger and having poor connection sealing performance. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a heat exchanger head connecting device, which solves the problems that for the existing connection of heat exchanger heads, most are fixedly connected by welding. However, due to the relatively high working pressure inside the heat exchanger, and during use, if there is a certain vibration, it is very easy to cause cracks at the welded joint of the head, resulting in leakage problems at the connection between the head and the heat exchanger, greatly reducing the heat exchange efficiency of the heat exchanger and having poor connection sealing performance.

[0006] The utility model provides the following technical solution: A heat exchanger head connecting device includes a heat exchanger main body. A heat exchanger external connection box is arranged at the top end of the heat exchanger main body. A head body is arranged on the outer side of the heat exchanger external connection box. An external nozzle is communicated with the side surface of the head body. An external joint is arranged on the other side of the external nozzle. The heat exchanger external connection box and the head body are tightly connected through a head connection sealing component arranged.

[0007] The cam is provided with a plurality of sealing gaskets, and the sealing gaskets are provided on the bottom of the cam body.

[0008] Preferred technical solution 1: Top connecting blocks are arranged around the top of the external connection box of the heat exchanger, and abutment screws are threadedly inserted on the top connecting block, and fixing slots are opened on the outer sides of the head body.

[0009] Preferred technical solution 2: A fixing nut is sleeved on the end of the abutting screw rod, and the end of the abutting screw rod is inserted into the fixing slot.

[0010] Preferred technical solution three: the connection sealing gasket seals between the head body and the bottom wall of the head connection slot under the resistance of the sealing gasket resistance rod.

[0011] This solution can further strengthen the sealing performance of the connection between the head body and the external connection box of the heat exchanger.

[0012] Preferred technical solution four: The end of the driving screw is provided with a handle for easy rotation.

[0013] This solution can make it more convenient for users to rotate the driving screw.

[0014] Preferred technical solution five: a rubber pad is sleeved on the abutment screw, and the rubber pad is located on the side of the fixing nut.

[0015] This solution enables the head body to be fixed again under the resistance of the fixing nut when the resistance screw is fixed against the side of the head body, and the rubber pad can prevent the fixing nut from scratching when it is against the outer side of the head body.

[0016] Compared with the prior art, the utility model provides a heat exchanger head connection device, which has the following beneficial effects:

[0017] The utility model provides a head body on the top of the heat exchanger main body, and the head body is connected to the external box of the heat exchanger by a head connection sealing assembly, wherein the connection sealing gasket in the head connection sealing assembly can seal the connection between the head body and the external box of the heat exchanger more firmly under the interference of the sealing gasket interference rod, and the middle part of the side of the head body can be firmly installed on the external box of the heat exchanger through the interference of the interference screw. This fixed connection method can not only firmly connect the head body and the external box of the heat exchanger, but also increase the connection sealing between the head body and the external box of the heat exchanger, and avoid the problem of easy cracking of the weld in the traditional welding process, so that the connection between the head body and the heat exchanger main body is more stable and closed, which effectively improves the safe heat exchange operation efficiency of the heat exchanger main body and is convenient for users. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the main cross-section of the structure of the utility model;

[0020] Figure 3 For the utility model Figure 2 A magnified view of the structure of the middle head connection sealing assembly;

[0021] Figure 4 For the utility model Figure 1 Schematic diagram of the structure of the middle head body.

[0022] In the figure:

[0023] 1. Heat exchanger body; 2. Heat exchanger external box; 3. Head body; 4. External pipe; 5. External joint; 6. Head connection sealing assembly;

[0024] 601, head connection slot; 602, connection sealing gasket; 603, driving inner cavity; 604, moving push plate; 605, driving screw; 606, limiting slide groove; 607, limiting slider; 608, sealing gasket abutment rod; 609, top connecting block; 610, abutment screw; 611, fixing slot; 612, fixing nut. DETAILED DESCRIPTION

[0025] See also Figures 1 - 4

[0026] Embodiment 1: A heat exchanger head connection device includes a heat exchanger main body 1. At the top of the heat exchanger main body 1, there is a heat exchanger external connection box 2. On the outside of the heat exchanger external connection box 2, there is a head body 3. A connecting pipe 4 communicates with the side of the head body 3. On the other side of the connecting pipe 4, there is an external joint 5. The heat exchanger external connection box 2 and the head body 3 are closely connected through a head connection and sealing assembly 6.

[0027] The head connection and sealing assembly 6 includes a head connection slot 601 opened at the top of the heat exchanger external connection box 2. The bottom end of the head body 3 is inserted into the head connection slot 601. A connecting and sealing gasket 602 is sleeved on the outside of the bottom of the head body 3. Four driving cavities 603 are evenly arranged on the side of the head connection slot 601. A moving push plate 604 is slidably arranged in the driving cavity 603. A driving screw 605 is threadedly inserted in the middle of the moving push plate 604.

[0028] One end of the driving screw 605 is rotatably connected to the inner wall of the driving cavity 603. The other end of the driving screw 605 rotatably penetrates the inner wall of the driving cavity 603 and extends to the outside of the heat exchanger external connection box 2. Two limiting chutes 606 are symmetrically opened on the inner wall of the driving cavity 603. Two limiting sliders 607 are symmetrically arranged on both sides of the moving push plate 604. The limiting sliders 607 are slidably inserted into the limiting chutes 606. Two sealing gasket abutting rods 608 are symmetrically arranged on the side of the moving push plate 604. The end of the sealing gasket abutting rod 608 passes through the inner wall of the driving cavity 603 and extends into the head connection slot 601.

[0029] The end of the sealing gasket abutting rod 608 abuts against the outside of the connecting and sealing gasket 602. Top connecting blocks 609 are arranged around the top of the heat exchanger external connection box 2. Abutting screws 610 are threadedly inserted into the top connecting blocks 609. Fixed slots 611 are opened on the outside of the periphery of the head body 3. Fixed nuts 612 are sleeved on the ends of the abutting screws 610. The ends of the abutting screws 610 are inserted into the fixed slots 611.

[0030] Embodiment 2: The difference between this embodiment and Embodiment 1 is that, among them, the connecting and sealing gasket 602 seals between the head body 3 and the bottom wall of the head connection slot 601 under the abutment of the sealing gasket abutting rod 608.

[0031] The connection sealing performance between the head body 3 and the heat exchanger external connection box 2 is further enhanced.

[0032] Embodiment 3: The difference between this embodiment and Embodiment 1 is that, among them, a handle for easy rotation is arranged at the end of the driving screw 605.

[0033] It makes it more convenient for users to rotate the driving screw 605.

[0034] Example 4: The difference between this example and Example 1 is that a rubber pad is sleeved on the abutting screw 610, and the rubber pad is located on the side of the fixing nut 612.

[0035] When the abutting screw 610 abuts and fixes the side of the head body 3, it can fix the head body 3 again under the abutment of the fixing nut 612, and the rubber pad can prevent scratching when the fixing nut 612 abuts against the outside of the head body 3.

[0036] In this embodiment, since the existing heat exchanger head connections mostly use welding for fixed connection, and due to the relatively high working pressure inside the heat exchanger, and during the use process, if there is a certain vibration, it is very easy to cause cracks at the welded joints of the head, resulting in leakage problems at the connection between the head and the heat exchanger, greatly reducing the heat exchange efficiency of the heat exchanger and having poor connection tightness.

[0037] In summary, during specific implementation, when the head body 3 needs to be hermetically fixed to the heat exchanger external box 2 on the heat exchanger main body 1, the user only needs to insert the bottom end of the head body 3 into the top end of the heat exchanger external box 2, so that the bottom end of the head body 3 fits against the bottom wall of the head connection slot 601 in the head connection sealing assembly 6, and at the same time, a connection sealing pad 602 is sleeved on the outside of the bottom of the head body 3.

[0038] Then, the user rotates the driving screw 605, so that the driving screw 605 drives the moving push plate 604 to slide in the driving cavity 603, and the side of the moving push plate 604 slides and is limited in the limiting chute 606 through the arranged limiting slider 607. Furthermore, the moving push plate 604 can push the sealing pad abutting rod 608 to abut against the outside of the connection sealing pad 602, thereby strengthening the fitting tightness between the connection sealing pad 602 and the side walls of the head body 3 and the head connection slot 601, and enhancing the connection tightness between the connection sealing pad 602 and the head body 3 and the head connection slot 601.

[0039] By further rotating the abutting screw 610 threadedly inserted into the top connection block 609, the end of the abutting screw 610 can be inserted into the fixing slot 611. By rotating the fixing nut 612, the middle part of the side of the head body 3 can be abutted and fixed, and further, the connection between the head body 3 and the heat exchanger external box 2 becomes more firm.

[0040] This kind of fixed connection method can not only firmly connect the head body 3 and the heat exchanger external box 2, but also increase the connection tightness between the head body 3 and the heat exchanger external box 2, and avoid the problem that the weld is easy to crack during the traditional welding process, making the connection between the head body 3 and the heat exchanger main body 1 more stable and sealed, effectively improving the safe heat exchange operation efficiency of the heat exchanger main body 1 and facilitating the use of the user.

Claims

1. A heat exchanger head connection device, comprising a heat exchanger main body (1), characterized in that: At the top of the heat exchanger main body (1), there is a heat exchanger external connection box (2). On the outside of the heat exchanger external connection box (2), there is a head body (3). A side of the head body (3) is communicated with an external connecting pipe (4). On the other side of the external connecting pipe (4), there is an external joint (5). The heat exchanger external connection box (2) and the head body (3) are tightly connected through a head connection and sealing assembly (6). The head connection and sealing assembly (6) includes a head connection slot (601) opened at the top of the heat exchanger external connection box (2). The bottom end of the head body (3) is inserted into the head connection slot (601). A connection sealing pad (602) is sleeved on the outside of the bottom of the head body (3). Four driving cavities (603) are uniformly arranged on the side of the head connection slot (601). A moving push plate (604) is slidably arranged in the driving cavity (603). A driving screw rod (605) is threadedly inserted in the middle of the moving push plate (604). One end of the driving screw rod (605) is rotatably connected to the inner wall of the driving cavity (603). The other end of the driving screw rod (605) rotatably penetrates through the inner wall of the driving cavity (603) and extends to the outside of the heat exchanger external connection box (2). Two limiting sliding grooves (606) are symmetrically opened on the inner wall of the driving cavity (603). Two limiting sliding blocks (607) are symmetrically arranged on both sides of the moving push plate (604). The limiting sliding blocks (607) are slidably inserted into the limiting sliding grooves (606). Two sealing pad abutting rods (608) are symmetrically arranged on the side of the moving push plate (604). The end of the sealing pad abutting rod (608) penetrates through the inner wall of the driving cavity (603) and extends into the head connection slot (601). The end of the sealing pad abutting rod (608) abuts against the outside of the connection sealing pad (602).

2. The heat exchanger head connection device according to claim 1, characterized in that: At the four weeks of the top of the heat exchanger external connection box (2), there are top connection blocks (609). Abutting screw rods (610) are threadedly inserted in the top connection blocks (609). Fixed slots (611) are opened on the outside of the four weeks of the head body (3).

3. The heat exchanger head connection device according to claim 2, characterized in that: The end of the abutting screw rod (610) is sleeved with a fixing nut (612). The ends of the abutting screw rods (610) are inserted into the fixed slots (611).

4. The connecting device for a heat exchanger head according to claim 3, characterized in that: Under the abutment of the sealing pad abutting rod (608), the connection sealing pad (602) seals between the head body (3) and the bottom wall of the head connection slot (601).

5. The connecting device for the heat exchanger head according to claim 4, wherein: A handle for easy rotation is arranged at the end of the driving screw rod (605).

6. The heat exchanger head connecting device according to claim 5, characterized in that: A rubber pad is sleeved on the abutting screw rod (610). The rubber pad is located on the side of the fixing nut (612).

Images