Anti-flash device for shell-and-tube cooler

Abstract

This utility model belongs to the technical field of anti-flash evaporation devices, specifically relating to an anti-flash evaporation device for a shell-and-tube cooler. It includes a tube box with an inlet inside. The upper end of the inlet contacts the main body of the anti-flash evaporation device. A connecting sleeve is fixedly connected to the outer side of the inlet, and an annular sleeve contacts the inner side of the connecting sleeve. The annular sleeve is fixedly connected to the main body of the anti-flash evaporation device. An installation mechanism is provided on the annular sleeve, and a sealing mechanism is provided on the connecting sleeve. This utility model, through the design of components such as a slot, sliding rod, support ring, pull rod, handle, and connecting seat, allows for easy installation. During installation, simply pulling the handle away from the connecting seat moves the support ring and sliding rod synchronously via the pull rod, compressing the spring. After the main body of the anti-flash evaporation device, along with the annular sleeve and slot, moves to the designated position at the inlet, the sliding rod is moved into the slot, thus limiting the main body of the anti-flash evaporation device and facilitating installation.

Description

Technical Field

[0001] This utility model relates to the technical field of anti-flash evaporation devices, specifically an anti-flash evaporation device for shell-and-tube coolers. Background Technology

[0002] Anti-flashover devices for shell-and-tube coolers are crucial safety equipment used to prevent flashover under high temperature and pressure conditions. Flashover can lead to overheating and overpressure within the shell-and-tube cooler, potentially causing serious accidents. Therefore, anti-flashover devices ensure safe operation of the cooler through the design of pressure relief and temperature control systems. When the internal pressure and temperature of the cooler reach critical values, the anti-flashover device automatically triggers, releasing some pressure or closing the feed valve to reduce system pressure and temperature, thus preventing flashover. This effectively protects the equipment and operators, preventing accidents. Therefore, anti-flashover devices for shell-and-tube coolers are essential safety equipment and should be correctly installed and regularly maintained to ensure long-term stable operation of the equipment and personnel safety.

[0003] However, in existing technologies, the installation of the device requires additional external specialized tools, making the installation process cumbersome and inconvenient. Furthermore, the lack of a dedicated sealing structure makes it difficult to maintain a stable and effective seal at the connection between the inlet and the main body of the anti-flash evaporation device, hindering its usability. Therefore, improvements are needed. Utility Model Content

[0004] The purpose of this utility model is to provide an anti-flash evaporation device for shell-and-tube coolers, which solves the problems that when the device needs to be installed, it requires additional external special auxiliary tools to complete the installation process, making the device inconvenient to install. Moreover, the device lacks a special sealing structure, and the connection between the water inlet and the main body of the anti-flash evaporation device is not easy to seal stably and effectively for a long time, making the device inconvenient to use.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an anti-flash evaporation device for a shell-and-tube cooler, comprising a tube box, an inlet provided inside the tube box, the upper end of the inlet contacting the main body of the anti-flash evaporation device, a connecting sleeve fixedly connected to the outer side of the inlet, an annular sleeve contacting the inner side of the connecting sleeve, the annular sleeve being fixedly connected to the main body of the anti-flash evaporation device, an installation mechanism provided on the annular sleeve, a sealing mechanism provided on the connecting sleeve, a partition plate provided inside the tube box, and an outlet provided inside the tube box.

[0006] Preferably, the installation mechanism includes a slot, the annular sleeve has a slot inside, a slide rod is slidably connected inside the slot, the slide rod is slidably connected to the connecting sleeve, a support ring is fixedly connected to the end of the slide rod away from the slot, a connecting seat is fixedly connected to the outside of the connecting sleeve, a pull rod is slidably connected inside the connecting seat, a spring is provided on the outside of the pull rod, a first sealing ring is fixedly sleeved inside the connecting seat, the first sealing ring is slidably connected to the pull rod, a second sealing ring is fixedly sleeved inside the connecting seat, the second sealing ring is slidably connected to the slide rod, and the connecting seat is slidably connected to the slide rod. By pulling the slide rod to a designated position, and then moving the anti-flash evaporation device body to the designated position on the inlet, the slide rod is moved into the slot, thereby limiting the anti-flash evaporation device body and facilitating device installation.

[0007] Preferably, a pull rod is fixedly connected to the side of the support ring away from the slide rod, and a handle is fixedly connected to the end of the pull rod away from the support ring. By designing the handle, it is easy for people to hold and apply force, and the pull rod can be easily moved along the axial direction, thereby pulling the support ring to move synchronously and reducing the difficulty of operation.

[0008] Preferably, one end of the spring is fixedly connected to the support ring, and the other end of the spring is fixedly connected to the connecting seat. By designing the spring, its elastic deformation characteristics enable the support ring to obtain a stable elastic force. After the pull rod pulls the support ring to move, it can automatically drive the support ring to return to the initial position.

[0009] Preferably, the sealing mechanism includes a screw, which is rotatably connected inside the connecting sleeve. A rotating block is fixedly connected to the screw, and the rotating block contacts the connecting sleeve. A threaded block is threadedly connected to the outside of the screw, and the threaded block is slidably connected to the connecting sleeve. A semi-circular sleeve is slidably connected inside the connecting sleeve, and the semi-circular sleeve is fixedly connected to the threaded block. A semi-circular sealing sleeve is fixedly connected to the outside of the semi-circular sleeve, and the semi-circular sealing sleeve is slidably connected to the connecting sleeve. The water inlet contacts the semi-circular sealing sleeve, and the semi-circular sealing sleeve contacts the main body of the anti-flash evaporation device. By rotating the screw and the threaded block, a threaded movement occurs. The movement of the threaded block drives the semi-circular sealing sleeve and other components to move. The semi-circular sealing sleeve moves and contacts the water inlet and the main body of the anti-flash evaporation device, thereby sealing the connection between the water inlet and the main body of the anti-flash evaporation device, making the device easy to use.

[0010] Preferably, a bearing is fixedly fitted inside the connecting sleeve, and a screw is fixedly fitted inside the inner ring of the bearing. By designing the bearing, the screw can be supported to rotate.

[0011] Preferably, a guide rod is fixedly connected to the semi-circular sleeve, and the guide rod is slidably connected to the semi-circular sleeve. By designing the guide rod, a sliding fit structure is formed with the semi-circular sleeve, which can strictly limit the movement trajectory of the semi-circular sleeve, prevent it from deviating during sliding, ensure the precise docking of the semi-circular sleeve with the corresponding mating parts, and improve the operating accuracy and reliability of the entire device.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. This utility model, through the design of components such as a slot, slide bar, support ring, pull rod, handle, and connecting seat, allows for easy installation. Simply pull the handle away from the connecting seat to move the support ring and slide bar synchronously via the pull rod, thereby compressing the spring. After the main body of the anti-flash evaporation device moves the annular sleeve and slot to the designated position at the inlet, the slide bar is moved into the slot, thus limiting the main body of the anti-flash evaporation device and making the device easy to install.

[0014] 2. This utility model, through the design of components such as a screw, rotating block, bearing, threaded block, semi-circular sleeve, and guide rod, allows the screw to rotate synchronously simply by rotating the rotating block. Utilizing the threaded transmission between the screw and the threaded block, the threaded block is driven to generate a stable relative displacement. This displacement, in turn, drives the guide rod and semi-circular sealing sleeve to move precisely, ensuring that the semi-circular sealing sleeve tightly fits against the surface of the connection. This seals the connection between the water inlet and the main body of the anti-flash evaporation device, making the device easy to use. Attached Figure Description

[0015] Figure 1 This is a perspective view of the overall structure of this utility model;

[0016] Figure 2 This utility model Figure 1 Partial sectional perspective view of the structure;

[0017] Figure 3 This utility model Figure 2 Enlarged view of the main body of the anti-flash evaporation device;

[0018] Figure 4 This utility model Figure 3 Enlarged view of point A;

[0019] Figure 5 This utility model Figure 3 Enlarged view of the semi-circular enclosure.

[0020] In the diagram: 1. Pipe box; 2. Inlet; 3. Main body of anti-flash evaporation device; 4. Connecting sleeve; 5. Annular sleeve; 6. Installation mechanism; 61. Slot; 62. Slide rod; 63. Support ring; 64. Pull rod; 65. Handle; 66. Connecting seat; 67. Spring; 68. First sealing ring; 69. Second sealing ring; 7. Sealing mechanism; 71. Screw; 72. Rotating block; 73. Bearing; 74. Threaded block; 75. Semi-circular sleeve; 76. Guide rod; 77. Semi-circular sealing sleeve; 8. Dividing plate; 9. Outlet. Detailed Implementation

[0021] 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.

[0022] Please see Figures 1-5 A flashover prevention device for a shell-and-tube cooler includes a tube box 1, an inlet 2 inside the tube box 1, an anti-flashover device body 3 at the upper end of the inlet 2, a connecting sleeve 4 fixedly connected to the outer side of the inlet 2, an annular sleeve 5 inside the connecting sleeve 4, the annular sleeve 5 fixedly connected to the anti-flashover device body 3, an installation mechanism 6 on the annular sleeve 5, a sealing mechanism 7 on the connecting sleeve 4, a partition plate 8 inside the tube box 1, and an outlet 9 inside the tube box 1.

[0023] Please see Figure 4The installation mechanism 6 includes a slot 61. The annular sleeve 5 has a slot 61 inside, and a slide rod 62 is slidably connected inside the slot 61. The slide rod 62 is slidably connected to the connecting sleeve 4. A support ring 63 is fixedly connected to the end of the slide rod 62 away from the slot 61. A pull rod 64 is fixedly connected to the side of the support ring 63 away from the slide rod 62. A handle 65 is fixedly connected to the end of the pull rod 64 away from the support ring 63. The handle 65 is designed to facilitate manual gripping and force application, easily moving the pull rod 64 axially, thereby pulling the support ring 63 to move synchronously, reducing operational difficulty. A connecting seat 66 is fixedly connected to the outside of the connecting sleeve 4. The pull rod 64 is slidably connected inside the connecting seat 66. A spring 67 is provided on the outside of the pull rod 64. One end of the spring 67 is fixedly connected to the support ring 63, and the other end of the spring 67... The connecting seat 66 is fixedly connected to the connecting base 66. By designing a spring 67, the elastic deformation characteristics of the spring allow the support ring 63 to obtain a stable elastic force. After the pull rod 64 pulls the support ring 63 to move, it can automatically drive the support ring 63 to return to the initial position. The connecting base 66 is fixedly sleeved with a first sealing ring 68, which is slidably connected to the pull rod 64. The connecting base 66 is also fixedly sleeved with a second sealing ring 69, which is slidably connected to the slide rod 62. The connecting base 66 and the slide rod 62 are slidably connected. By pulling the slide rod 62 to the designated position, the anti-flash evaporation device body 3 is moved, which drives the annular sleeve 5 and the slot 61 to the designated position on the inlet 2. Then, the slide rod 62 is moved into the slot 61, thereby limiting the anti-flash evaporation device body 3 and making the device easy to install.

[0024] Please see Figure 3 , Figure 5The sealing mechanism 7 includes a screw 71. The screw 71 is rotatably connected inside the connecting sleeve 4. A rotating block 72 is fixedly connected to the screw 71, and the rotating block 72 contacts the connecting sleeve 4. A bearing 73 is fixedly sleeved inside the connecting sleeve 4. The screw 71 is fixedly sleeved inside the inner ring of the bearing 73. The bearing 73 is designed to support the rotation of the screw 71. A threaded block 74 is threadedly connected to the outer side of the screw 71, and the threaded block 74 is slidably connected to the connecting sleeve 4. A semi-circular sleeve 75 is slidably connected inside the connecting sleeve 4, and the semi-circular sleeve 75 is fixedly connected to the threaded block 74. A guide rod 76 is fixedly connected to the semi-circular sleeve 75, and the guide rod 76 is slidably connected to the semi-circular sleeve 75. The guide rod 76 and the semi-circular sleeve 75 form a sliding fit structure, ensuring tight sealing. The movement trajectory of the semi-circular sleeve 75 is limited to prevent it from deviating during sliding, ensuring precise docking between the semi-circular sleeve 75 and its corresponding mating parts, and improving the operational accuracy and reliability of the entire device. A semi-circular sealing sleeve 77 is fixedly connected to the outside of the semi-circular sleeve 75. The semi-circular sealing sleeve 77 is slidably connected to the connecting sleeve 4. The water inlet 2 contacts the semi-circular sealing sleeve 77, and the semi-circular sealing sleeve 77 contacts the anti-flash evaporation device body 3. By rotating the screw 71 and the threaded block 74, a threaded movement occurs. The movement of the threaded block 74 drives the semi-circular sealing sleeve 77 and other components to move. The semi-circular sealing sleeve 77 moves and contacts the water inlet 2 and the anti-flash evaporation device body 3, thereby sealing the connection between the water inlet 2 and the anti-flash evaporation device body 3, making the device easy to use.

[0025] The specific implementation process of this utility model is as follows: Before using the device, pull the handle 65 to move away from the connecting seat 66. The movement of the handle 65 drives the pull rod 64 to move, the movement of the pull rod 64 drives the support ring 63 to move, the movement of the support ring 63 drives the slide rod 62 to move, the movement of the support ring 63 compresses the spring 67, and after the slide rod 62 moves to the designated position, move the anti-flash evaporation device body 3 to move the annular sleeve 5 and the slot 61 to the designated position on the inlet 2. Then release the handle 65. The elastic force of the spring 67 pushes the support ring 63 to move, the movement of the support ring 63 drives the slide rod 62 and other components to move, and the slide rod 62 moves into the slot 61, thereby limiting the anti-flash evaporation device body 3 and making the device easy to install.

[0026] When it is necessary to seal the connection between the inlet 2 and the main body 3 of the anti-flash evaporation device, rotate the rotating block 72. The rotation of the rotating block 72 drives the screw 71 to rotate. The rotation of the screw 71 causes threaded movement with the threaded block 74, which in turn causes the threaded block 74 to move relative to the threaded block 74. The movement of the threaded block 74 causes the semi-circular sleeve 75 to move. The movement of the semi-circular sleeve 75 causes the guide rod 76 and the semi-circular sealing sleeve 77 to move. The semi-circular sealing sleeve 77 moves and contacts the inlet 2 and the main body 3 of the anti-flash evaporation device, thereby sealing the connection between the inlet 2 and the main body 3 of the anti-flash evaporation device, making the device easy to use.

[0027] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. Anti-flash device for shell-and-tube coolers, comprising a tube sheet (1), characterized in that: The pipe box (1) is provided with an inlet (2) inside. The upper end of the inlet (2) contacts the anti-flash evaporation device body (3). A connecting sleeve (4) is fixedly connected to the outside of the inlet (2). An annular sleeve (5) contacts the inside of the connecting sleeve (4). The annular sleeve (5) is fixedly connected to the anti-flash evaporation device body (3). An installation mechanism (6) is provided on the annular sleeve (5). A sealing mechanism (7) is provided on the connecting sleeve (4). A partition plate (8) is provided inside the pipe box (1). An outlet (9) is provided inside the pipe box (1).

2. An anti-flash device for a shell-and-tube cooler according to claim 1, characterized in that: The installation mechanism (6) includes a slot (61). The slot (61) is provided inside the annular sleeve (5). A slide rod (62) is slidably connected inside the slot (61). The slide rod (62) is slidably connected to the connecting sleeve (4). A support ring (63) is fixedly connected to one end of the slide rod (62) away from the slot (61). A connecting seat (66) is fixedly connected to the outside of the connecting sleeve (4). A pull rod (64) is slidably connected inside the connecting seat (66). A spring (67) is provided on the outside of the pull rod (64). A first sealing ring (68) is fixedly sleeved inside the connecting seat (66). The first sealing ring (68) is slidably connected to the pull rod (64). A second sealing ring (69) is fixedly sleeved inside the connecting seat (66). The second sealing ring (69) is slidably connected to the slide rod (62). The connecting seat (66) is slidably connected to the slide rod (62).

3. An anti-flash device for a shell-and-tube cooler according to claim 2, characterized in that: A pull rod (64) is fixedly connected to the side of the support ring (63) away from the slide rod (62), and a handle (65) is fixedly connected to the end of the pull rod (64) away from the support ring (63).

4. An anti-flash device for a shell-and-tube cooler according to claim 2, characterized in that: One end of the spring (67) is fixedly connected to the support ring (63), and the other end of the spring (67) is fixedly connected to the connecting seat (66).

5. The anti-flash device for a shell-and-tube cooler according to claim 1, characterized in that: The sealing mechanism (7) includes a screw (71), the screw (71) is rotatably connected inside the connecting sleeve (4), a rotating block (72) is fixedly connected to the screw (71), the rotating block (72) is in contact with the connecting sleeve (4), a threaded block (74) is threadedly connected to the outside of the screw (71), the threaded block (74) is slidably connected to the connecting sleeve (4), a semi-circular sleeve (75) is slidably connected inside the connecting sleeve (4), the semi-circular sleeve (75) is fixedly connected to the threaded block (74), a semi-circular sealing sleeve (77) is fixedly connected to the outside of the semi-circular sleeve (75), the semi-circular sealing sleeve (77) is slidably connected to the connecting sleeve (4), the water inlet (2) is in contact with the semi-circular sealing sleeve (77), and the semi-circular sealing sleeve (77) is in contact with the anti-flash evaporation device body (3).

6. An anti-flash device for a shell-and-tube cooler according to claim 5, characterized in that: The connecting sleeve (4) is fitted with a bearing (73), and the inner ring of the bearing (73) is fitted with a screw (71).

7. An anti-flash device for a shell-and-tube cooler according to claim 5, characterized in that: A guide rod (76) is fixedly connected to the semi-circular sleeve (75), and the guide rod (76) is slidably connected to the semi-circular sleeve (75).

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