Heat exchanger end cover assembling and pressing equipment

Abstract

The utility model discloses a heat exchanger end cover assembling and pressing device, and relates to the related technical field of heat exchanger machining. The heat exchanger comprises a heat exchanger body, a hydraulic cylinder, a negative pressure cabin and a supporting block, an end cover is arranged at one end of the heat exchanger body, the supporting block is arranged below the end cover, the negative pressure cabin is arranged at the end, away from the heat exchanger body, of the end cover, the hydraulic cylinder is arranged at the end, away from the heat exchanger body, of the negative pressure cabin, and a hydraulic rod is movably connected into the hydraulic cylinder. The ends, away from the hydraulic cylinders, of the hydraulic rods are rotationally connected with turntables. The heat exchanger main body, the hydraulic cylinder, the negative pressure cabin and the supporting block are arranged, so that the problems that an end cover and a heat exchanger are not convenient to align and an end cover mounting structure and a heat exchanger end mounting structure are not convenient to align in the heat exchanger end cover assembling and pressing equipment are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field related to the processing of heat exchangers, and particularly relates to a press-fitting device for assembling heat exchanger end covers. Background Technique

[0002] A heat exchanger is an energy-saving device that realizes heat transfer between materials among two or more fluids at different temperatures. Its basic function is to transfer heat from a fluid with a higher temperature to a fluid with a lower temperature to meet the requirements of process conditions and improve energy utilization efficiency. Heat exchangers play an important role in many industrial productions such as chemical industry, petroleum, power, and food, and can be used in various forms such as heaters, coolers, condensers, evaporators, and reboilers. The heat exchanger end cover is an important part of the heat exchanger. It is usually used to seal both ends of the heat exchanger to ensure that the medium does not leak during internal flow, and at the same time plays a certain supporting and protecting role. The design of the end cover is crucial for the performance and reliability of the entire heat exchanger. During the installation process of the end cover, a press-fitting device is required to press-fit the heat exchanger and the end cover well. However, there are still the following drawbacks in its actual use:

[0003] When installing the press-fitting device for assembling heat exchanger end covers, the corresponding device is directly installed through the end cover. During the installation process of the end cover, it is necessary to align the end cover with the heat exchanger. When aligning, the operation requires manual observation, so the operation is relatively slow, affecting the installation efficiency;

[0004] The press-fitting device for assembling heat exchanger end covers directly pushes the end cover onto the heat exchanger through an external pushing structure for the installation of the end cover. However, there are installation structures such as screws on the end cover that need to be installed on the heat exchanger. During the installation process, it is not convenient to align the installation structure of the end cover with the installation structure at the end of the heat exchanger. Content of the Utility Model

[0005] The purpose of the utility model is to provide a press-fitting device for assembling heat exchanger end covers. By setting a heat exchanger main body, a hydraulic cylinder, a negative pressure chamber, and a support block, the problems that it is not convenient to align the end cover with the heat exchanger and it is not convenient to align the installation structure of the end cover with the installation structure at the end of the heat exchanger in the press-fitting device for assembling heat exchanger end covers are solved.

[0006] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0007] The utility model relates to a pressing equipment for assembling a heat exchanger end cover, which comprises a heat exchanger main body, a hydraulic cylinder, a negative pressure chamber and a support block. One end of the heat exchanger main body is provided with an end cover, a support block is arranged below the end cover, a negative pressure chamber is arranged at one end of the end cover far away from the heat exchanger main body, a hydraulic cylinder is arranged at one end of the negative pressure chamber far away from the heat exchanger main body, a hydraulic rod is movably connected in the hydraulic cylinder, and one end of the hydraulic rod far away from the hydraulic cylinder is rotatably connected with a turntable. During operation, the heat exchanger main body provides a heat exchange function, the hydraulic cylinder drives the negative pressure chamber to move, the negative pressure chamber moves to contact the end cover with a sealing ring. When negative pressure is set in the negative pressure chamber, the negative pressure chamber and the end cover are adsorbed and fastened. The end cover is supported on the support block and aligned with the heat exchanger main body.

[0008] Further, two support seats are movably connected to the lower part of the outer peripheral surface of the heat exchanger main body, and mounting ears are fixed at the lower edges of both end faces of the support seats. The heat exchanger main body is supported on the working surface through the support seats, and the support seats provide installation with expansion bolts through the mounting ears.

[0009] Further, a base is fixed at the bottom of the hydraulic cylinder, and a support plate is movably connected to the periphery of the hydraulic rod. The hydraulic cylinder is supported on the working surface through the base, and the hydraulic rod provides installation through the support plate.

[0010] Further, two handles are fixed on the periphery of the turntable, and the included angle between the axis lines of the two handles is 90 degrees. One end of the turntable far away from the hydraulic rod is rotatably connected with the negative pressure chamber. The turntable is rotated through the handles to drive the negative pressure chamber and the end cover adsorbed by the negative pressure chamber to rotate.

[0011] Further, a negative pressure pipe and an air inlet pipe are fixedly communicated with the middle part of the periphery of the negative pressure chamber, and the included angle between the axis lines of the negative pressure pipe and the air inlet pipe is 90 degrees. The negative pressure chamber is evacuated and supplied with gas through the negative pressure pipe and the air inlet pipe, so that the negative pressure chamber and the end cover are tightened and loosened.

[0012] Further, a sealing ring is fixed at one end of the negative pressure chamber close to the end cover, and the sealing ring abuts against the surface of the end cover. The negative pressure chamber closes the gap between it and the end cover through the sealing ring.

[0013] Further, a support groove is formed at the top of the support block, and the end cover is movably connected in the support groove. The support block supports the end cover well through the support groove.

[0014] The utility model has the following beneficial effects:

[0015] The utility model solves the problem that it is not convenient enough to align the end cover and the heat exchanger in the end cover assembly and pressing equipment of the heat exchanger by setting a heat exchanger main body and a support block. First, the end cover is hoisted to the support groove at the top of the support block by an external hoisting device, and the end cover is restricted by the support groove, so that the position between the end cover and the heat exchanger main body is aligned. After the negative pressure chamber adsorbs the end cover, the external hoisting device is released, making it more convenient to align between the end cover and the end of the heat exchanger main body.

[0016] The utility model solves the problem that it is not convenient enough to align the end cover installation structure and the heat exchanger end installation structure in the end cover assembly and pressing equipment of the heat exchanger by setting a heat exchanger main body, a hydraulic cylinder, a negative pressure chamber and a support block. Start the hydraulic cylinder, and the hydraulic cylinder drives the turntable and the negative pressure chamber, so that the negative pressure chamber pushes the end cover to make the end cover approach the heat exchanger main body. Then hold the handle and rotate the turntable to drive the negative pressure chamber to rotate, aligning the installation structure on the end cover and the heat exchanger end installation structure, making it more convenient to align the end cover installation structure and the heat exchanger end installation structure in the end cover assembly and pressing equipment of the heat exchanger. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 It is a three-dimensional assembly structure diagram of an end cover assembly and pressing equipment for a heat exchanger;

[0019] Figure 2 It is a three-dimensional structure diagram of the heat exchanger main body;

[0020] Figure 3 It is a three-dimensional structure diagram of the hydraulic cylinder;

[0021] Figure 4 It is a three-dimensional structure diagram of the negative pressure chamber;

[0022] Figure 5 It is a three-dimensional structure diagram of the support block and the end cover;

[0023] Figure 6 It is a three-dimensional structure diagram of the support block.

[0024] Reference Signs:

[0025] 1. Heat exchanger main body; 101. Support base; 102. Mounting ear; 2. Hydraulic cylinder; 201. Base; 202. Hydraulic rod; 203. Support plate; 204. Turntable; 205. Handle; 3. Negative pressure chamber; 301. Sealing ring; 302. Negative pressure pipe; 303. Air inlet pipe; 4. Support block; 401. Support groove; 5. End cover. Detailed implementation mode

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention. Specific embodiment 1

[0027] Please refer to Figure 1-6 , the present invention is a pressing and fitting device for the end cover of a heat exchanger, including a heat exchanger main body 1, a hydraulic cylinder 2, a negative pressure chamber 3 and a support block 4. One end of the heat exchanger main body 1 is provided with an end cover 5. The heat exchanger main body 1 provides a heat exchange function. One end of the heat exchanger main body 1 is closed by the end cover 5. A support block 4 is arranged below the end cover 5 to temporarily support the end cover 5 and provide support between the end cover 5 and the heat exchanger main body 1. A negative pressure chamber 3 is arranged at one end of the end cover 5 away from the heat exchanger main body 1. After the sealing ring 301 on the negative pressure chamber 3 contacts the end cover 5, through negative pressure setting, the end cover 5 can be transported. A hydraulic cylinder 2 is arranged at one end of the negative pressure chamber 3 away from the heat exchanger main body 1. A hydraulic rod 202 is movably connected in the hydraulic cylinder 2. The hydraulic cylinder 2 drives the hydraulic rod 202 to move, driving the end cover 5 to move. One end of the hydraulic rod 202 away from the hydraulic cylinder 2 is rotatably connected to a turntable 204. By rotating the turntable 204, the end cover 5 is driven to move, so that the end cover 5 and the heat exchanger main body 1 are combined together.

[0028] Specifically, two support bases 101 are movably connected to the lower part of the outer peripheral surface of the heat exchanger main body 1. Mounting ears 102 are fixed at the lower edges of both end faces of the support base 101. The heat exchanger main body 1 is supported on the ground through the support base 101. The heat exchanger main body 1 is supported on the working platform through the support base 101. The support base 101 provides a limiting expansion bolt installation function through the mounting ear 102.

[0029] Furthermore, a base 201 is fixed at the bottom of the hydraulic cylinder 2. A support plate 203 is movably connected to the periphery of the hydraulic rod 202. The hydraulic cylinder 2 is supported on the ground through the base 201. The hydraulic rod 202 is supported on the ground through the support plate 203.

[0030] Further, two handles 205 are fixed on the circumferential side of the turntable 204, and the included angle between the axis lines of the two handles 205 is 90 degrees. One end of the turntable 204 away from the hydraulic rod 202 is rotatably connected to the negative pressure chamber 3. The turntable 204 provides a rotating end cover 5 through the handle 205, so that the end cover 5 and the heat exchanger main body 1 are accurately aligned and installed.

[0031] Further, a negative pressure pipe 302 and an air inlet pipe 303 are fixedly communicated with the middle part of the circumferential side of the negative pressure chamber 3. The included angle between the axis lines of the negative pressure pipe 302 and the air inlet pipe 303 is 90 degrees. The negative pressure pipe 302 is communicated with the external negative pressure pipe 302 path, and the air inlet pipe 303 is communicated with the pipeline for conveying air outside. The negative pressure chamber 3 extracts air through the negative pressure pipe 302 and inputs air through the air inlet pipe 303. After the air in the negative pressure chamber 3 is extracted, the negative pressure chamber 3 is extracted, so that the end cover 5 is adsorbed well.

[0032] Further, a sealing ring 301 is fixed at one end of the negative pressure chamber 3 close to the end cover 5. The sealing ring 301 abuts against the surface of the end cover 5, so that the gap between the negative pressure chamber 3 and the end cover 5 is sealed.

[0033] The operation process of this embodiment is as follows: During work, first place the heat exchanger main body 1 on the two support seats 101, and then place the end cover 5 on the support block 4. Start the hydraulic cylinder 2. The hydraulic cylinder 2 drives the hydraulic rod 202, and the hydraulic rod 202 drives the turntable 204 and the negative pressure chamber 3 to move close to the support block 4. Then, extract the air in the negative pressure chamber 3 through the negative pressure pipe 302, so that the end cover 5 is adsorbed in contact with the sealing ring 301. Due to the negative pressure in the negative pressure chamber 3, the end cover 5 and the negative pressure chamber 3 are adsorbed and fastened. After the end cover 5 and the negative pressure chamber 3 are fastened, start the hydraulic cylinder 2 again. The hydraulic cylinder 2 drives the turntable 204 and the negative pressure chamber 3, so that the negative pressure chamber 3 pushes the end cover 5, making the end cover 5 close to the heat exchanger main body 1. Then hold the handle 205 and rotate the turntable 204 to drive the negative pressure chamber 3 to rotate, align the installation structure on the end cover 5 with the installation structure at the end of the heat exchanger main body 1. After alignment, the end cover 5 continues to be driven by the hydraulic cylinder 2 until the end cover 5 and the heat exchanger main body 1 are pressed together, and the installation is completed, and the work can be completed. Then start the air conveying pipeline communicated with the air inlet pipe 303, so that the negative pressure chamber 3 and the end cover 5 are separated, and then start the hydraulic cylinder 2 to drive the negative pressure chamber 3 to reset, and the work is completed. Specific Embodiment Two

[0034] Please refer to Figure 1 、 2 Figures 5 and 6. On the basis of Specific Embodiment One, a support groove 401 is formed at the top of the support block 4. The end cover 5 is movably connected in the support groove 401. The support block 4 supports the end cover 5 in the support groove 401, so that the end cover 5 and the end of the heat exchanger main body 1 are aligned.

[0035] The operation process of this embodiment is as follows: during operation, first, the end cover 5 is lifted by an external hoisting device into the support groove 401 at the top of the support block 4. The end cover 5 is restricted by the support groove 401 to align the positions between the end cover 5 and the heat exchanger body 1. After the negative pressure chamber 3 adsorbs the end cover 5, the external hoisting device is released, making it more convenient to align between the end cover 5 and the end of the heat exchanger body 1.

[0036] In the description of this specification, the descriptions referring to the terms "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0037] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principle and practical application of the present utility model, so that those skilled in the relevant technical field can understand and utilize the present utility model well. The present utility model is only limited by the claims and their full scope and equivalents.

Claims

1. A heat exchanger end cover assembly and pressing device, comprising a heat exchanger body (1), a hydraulic cylinder (2), a negative pressure chamber (3) and a support block (4), characterized in that: An end cover (5) is provided at one end of the heat exchanger body (1), a support block (4) is provided below the end cover (5), a negative pressure chamber (3) is provided at the end of the end cover (5) away from the heat exchanger body (1), a hydraulic cylinder (2) is provided at the end of the negative pressure chamber (3) away from the heat exchanger body (1), a hydraulic rod (202) is movably connected inside the hydraulic cylinder (2), and a turntable (204) is rotatably connected to the end of the hydraulic rod (202) away from the hydraulic cylinder (2).

2. The heat exchanger end cover assembly and pressing device according to claim 1, characterized in that: The lower part of the outer peripheral surface of the heat exchanger body (1) is movably connected to two support seats (101), and mounting ears (102) are fixed at the lower edges of both end surfaces of the support seats (101).

3. The heat exchanger end cover assembly and pressing device according to claim 1, characterized in that: A base (201) is fixed to the bottom of the hydraulic cylinder (2), and a support plate (203) is movably connected to the circumference of the hydraulic rod (202).

4. The heat exchanger end cover assembly and pressing device according to claim 1, characterized in that: Two handles (205) are fixed on the circumference of the rotating disk (204), and the included angle between the axis lines of the two handles (205) is ninety degrees. One end of the rotating disk (204) away from the hydraulic rod (202) is rotatably connected to the negative pressure cabin (3).

5. The heat exchanger end cover assembly and pressing device according to claim 1, characterized in that: A negative pressure pipe (302) and an air intake pipe (303) are fixedly connected at the middle of the circumference of the negative pressure cabin (3), and the included angle between the axis lines of the negative pressure pipe (302) and the air intake pipe (303) is ninety degrees.

6. The heat exchanger end cover assembly and pressing device according to claim 1, characterized in that: A sealing ring (301) is fixed to one end of the negative pressure chamber (3) close to the end cover (5), and the sealing ring (301) abuts against the surface of the end cover (5).

7. The heat exchanger end cover assembly and pressing device according to claim 1, characterized in that: The top of the support block (4) is provided with a support groove (401), and the end cover (5) is movably connected in the support groove (401).

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