A liquid chlorine filling anti-leakage intelligent connecting device

Abstract

The utility model discloses a kind of liquid chlorine filling anti-leakage intelligent connecting devices, including liquid chlorine storage tank, the top of the liquid chlorine storage tank is equipped with connecting pipe, fixed ring is sleeved on the connecting pipe, the connecting pipe is equipped with cover plate, locking mechanism is installed on the side of the cover plate, filling mechanism is installed on the cover plate, first locking sleeve is sleeved on the filling mechanism, second locking sleeve is installed in the first locking sleeve, the second locking sleeve is fixed with feed pipe. The utility model is through the buckle type design of locking mechanism and fixed ring, realize the even locking and quick disassembly of cover plate and connecting pipe, effectively avoid the uneven stress and wear problem of traditional sealing structure;Filling mechanism is matched with double locking sleeve and shut-off valve, forms multilayer sealing system, in combination with the sealing seat and sealing ring of rubber material, significantly improve the anti-leakage performance under high pressure.

Description

Technical Field

[0001] This utility model relates to the field of connection device technology, and in particular to a liquid chlorine filling leak-proof intelligent connection device. Background Technology

[0002] Liquid chlorine, as an important chemical raw material, is widely used in tap water disinfection, sewage treatment, paper bleaching, pesticide and chemical intermediate production. In industrial production, liquid chlorine is usually stored in high-pressure cylinders or storage tanks in liquid form. It needs to be transferred from the storage container to the transport cylinder or the equipment used by the filling equipment. This filling process needs to be carried out in a high-pressure environment (usually 0.5-1.5MPa), which places extremely high demands on the sealing and safety of the connecting devices. Its filling efficiency and reliability directly affect the continuity of production and the safety of operation.

[0003] Because liquid chlorine is highly toxic, corrosive, and volatile, if the connecting device leaks during the filling process, it will not only cause the liquid chlorine to evaporate and form a toxic gas cloud, leading to personnel poisoning and environmental pollution accidents, but may also cause fire and explosion risks due to the reaction of chlorine with surrounding substances. In addition, liquid chlorine leakage will cause waste of raw materials, increase production costs, and affect the stability of the filling process (such as pressure fluctuations leading to inaccurate filling volume).

[0004] Existing liquid chlorine filling connection devices still have significant defects in practical applications: the mechanical seal structure is not reliable enough, most devices use traditional flange gasket seals or thread seals, the gasket material (such as polytetrafluoroethylene) is prone to aging and cracking under long-term high pressure environment, and the threaded connection also suffers wear of the seal due to vibration. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a liquid chlorine filling leak-proof intelligent connection device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A liquid chlorine filling leak-proof intelligent connection device includes a liquid chlorine storage tank, a connecting pipe installed on the top of the liquid chlorine storage tank, a fixing ring fixedly sleeved on the connecting pipe, a cover plate installed on the connecting pipe, a locking mechanism installed on the side of the cover plate, a filling mechanism installed on the cover plate, a first locking sleeve sleeved on the filling mechanism, a second locking sleeve installed inside the first locking sleeve, and a feed pipe fixed on the second locking sleeve;

[0008] The locking mechanism includes a rotating shaft rotatably mounted on the cover plate, a movable frame rotatably connected to the rotating shaft, fixed plates fixed at both ends inside the movable frame, and an adjusting rod rotatably connected to the two fixed plates, with a locking block threaded onto the adjusting rod.

[0009] Preferably, the locking block and the movable frame are slidably connected, and the locking block and the fixed ring are snap-fit ​​connected.

[0010] Preferably, the number of locking mechanisms is at least four, and the four locking mechanisms are located on the side of the cover plate and are distributed in a circumferential array.

[0011] Preferably, the locking mechanism locks the cover plate onto the connecting pipe via a retaining ring.

[0012] Preferably, the filling mechanism includes a first filling tube installed on the cover plate, the first filling tube being inserted into the interior of the connecting tube, a sealing seat and a sealing ring being fixedly sleeved on the first filling tube, a second filling tube being installed at the top of the first filling tube, and a shut-off valve being installed inside the second filling tube.

[0013] Preferably, the first locking sleeve is installed at the end of the second filling tube away from the first filling tube, and the second locking sleeve is threaded onto the outer peripheral wall of the second filling tube.

[0014] Preferably, the outer surface of the second locking sleeve is provided with threads, and the second locking sleeve is connected to the inner peripheral wall of the first locking sleeve through the threads.

[0015] Preferably, both the sealing seat and the sealing ring are made of rubber, which improves the sealing performance between the first filling pipe and the connecting pipe.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] In this utility model, the locking mechanism, through the linkage design of the rotating shaft, movable frame, adjusting rod and locking block, forms a snap-locking structure with the fixing ring, which can realize the quick sealing and fixing of the cover plate and the connecting pipe. Specifically, the locking mechanism with at least four circumferentially distributed locking mechanisms can apply locking force evenly, avoiding the problem of misalignment of the sealing surface caused by uneven force at a single point in traditional flange or threaded seals, significantly improving the sealing reliability under high pressure environment. The threaded engagement between the adjusting rod and the locking block can precisely adjust the locking force, ensuring that the locking block and the fixing ring are tightly engaged, effectively preventing wear of the sealing components caused by vibration.

[0018] The filling mechanism, through the combined design of the first filling tube, sealing seat, and sealing ring, forms a multi-layer sealing system with the first locking sleeve, second locking sleeve, and feed tube. The rubber sealing seat and sealing ring can tightly fit the inner wall of the connecting tube, and together with the structure of the first filling tube inserted into the connecting tube, a physical barrier is formed to prevent liquid chlorine leakage. The shut-off valve in the second filling tube can automatically close when connecting or disconnecting the feed tube to prevent liquid chlorine from evaporating and leaking during operation, thus enhancing safety. The threaded linkage design of the first and second locking sleeves tightly fixes the feed tube and the second filling tube through a double locking structure, eliminating gaps at the threaded connection. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a liquid chlorine filling leak-proof intelligent connection device proposed in this utility model;

[0020] Figure 2 for Figure 1 Side sectional view;

[0021] Figure 3 for Figure 2 Enlarged diagram of part A in the middle;

[0022] Figure 4 for Figure 1 A schematic diagram of the locking mechanism.

[0023] In the diagram: 1. Liquid chlorine storage tank; 2. Connecting pipe; 3. Fixing ring; 4. Cover plate; 5. Locking mechanism; 51. Rotating shaft; 52. Movable frame; 53. Fixing plate; 54. Adjusting rod; 55. Locking block; 6. Filling mechanism; 61. First filling pipe; 62. Sealing seat; 63. Sealing ring; 64. Second filling pipe; 65. Shut-off valve; 7. First locking sleeve; 8. Second locking sleeve; 9. Feed pipe. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Reference Figure 1-4 A liquid chlorine filling leak-proof intelligent connection device includes a liquid chlorine storage tank 1, a connecting pipe 2 installed on the top of the liquid chlorine storage tank 1, a fixing ring 3 fixedly sleeved on the connecting pipe 2, a cover plate 4 installed on the connecting pipe 2, a locking mechanism 5 installed on the side of the cover plate 4, a filling mechanism 6 installed on the cover plate 4, a first locking sleeve 7 sleeved on the filling mechanism 6, a second locking sleeve 8 installed inside the first locking sleeve 7, and a feed pipe 9 fixed on the second locking sleeve 8.

[0026] In this embodiment, please refer to Figure 1 , Figure 2 and Figure 4 The innovative design of the locking mechanism 5 combines structural stability and sealing reliability: Rotating the shaft 51 mounted on the cover plate 4 allows the movable frame 52 to unfold flexibly. When the movable frame 52 covers the fixed ring 3, rotating the adjusting rod 54 drives the locking block 55 to slide along the movable frame 52. Utilizing the precise adjustment characteristics of the threaded fit, the locking block 55 and the fixed ring 3 form a tight snap-fit ​​connection. Through at least four circumferentially distributed locking mechanisms 5, a locking force can be evenly applied to the sealing surfaces of the cover plate 4 and the connecting pipe 2, completely avoiding the misalignment problem of the sealing surface caused by uneven force at a single point in traditional flange sealing. The locking block 55 and the movable frame 52... The sliding connection structure of the moving frame 52, combined with the thread depth adjustment function of the adjusting rod 54, can precisely control the locking force to ensure that the cover plate 4 fits tightly against the end face of the connecting pipe 2. The snap-fit ​​connection between the locking block 55 and the fixing ring 3 not only realizes the convenience of quick disassembly and assembly, but also effectively prevents wear of the seals caused by vibration under high pressure through the uniform force design of multiple locking mechanisms. This structural design enables the locking mechanism 5 to quickly fix the cover plate 4 and the connecting pipe 2 while significantly improving the sealing reliability under high pressure conditions, eliminating the risk of leakage caused by uneven force in traditional threaded seals from the mechanical structure level.

[0027] In this embodiment, please refer to Figure 1 , Figure 2 and Figure 3 The integrated design of the filling mechanism 6 and the double locking sleeve constructs a multi-layer anti-leakage system: the first filling tube 61, installed on the cover plate 4, is inserted into the connecting tube 2 along with the cover plate. The rubber sealing seat 62 and sealing ring 63 on its outer wall are squeezed and tightly adhere to the inner wall of the connecting tube. The elastic deformation of the rubber material fills the micro gaps, forming the first physical sealing barrier, which completely solves the leakage hazards caused by the aging and cracking of traditional gaskets. The second filling tube 64 at the top of the first filling tube 61 has a built-in shut-off valve 65, which is closed in the natural state. The double thread structure of the first locking sleeve 7 and the second locking sleeve 8 forms a progressive seal: first, the second locking sleeve 8 is screwed into the second filling tube 64 to fix the feed tube 9, and then the external threads of the first locking sleeve 7 and the second locking sleeve 8 are engaged to further eliminate the connection gap. This "double-stage locking + thread pre-tightening" mechanism can improve the uniformity of pressure distribution at the connection compared with the traditional single thread seal.

[0028] When installing the cover plate 4, the locking mechanism 5 rotates on the side of the cover plate 4 via the rotating shaft 51, causing the movable frame 52 to unfold above the fixed ring 3. The rotating adjusting rod 54 causes the locking block 55 to slide along the movable frame 52 until the locking block 55 engages with the locking groove of the fixed ring 3. The threaded depth of the adjusting rod 54 makes the cover plate 4 fit tightly against the end face of the connecting pipe 2, achieving a preliminary seal. The first filling pipe 61 of the filling mechanism 6 is inserted into the connecting pipe 2 with the cover plate 4 in place. The sealing seat 62 and the sealing ring 63 (rubber material) are squeezed and fit against the inner wall of the connecting pipe 2, forming a secondary seal. The second filling pipe 64 is installed on top of the first filling pipe 61. The shut-off valve 65 inside it is in a closed state under natural conditions. When connecting the feed pipe 9, the feed pipe 9 is inserted into the second locking sleeve 8. Then, the second locking sleeve 8 is rotated to connect with the second filling pipe 64 through threads. Then, the first locking sleeve 7 is rotated to connect with the second locking sleeve 8 through threads, eliminating the connection gap.

[0029] When filling with liquid chlorine, the shut-off valve 65 is opened, and liquid chlorine is injected into the connecting pipe 2 from the feed pipe 9, the second filling pipe 64 and the first filling pipe 61, flowing into the liquid chlorine storage tank 1. After filling is completed, the shut-off valve 65 is closed, the first locking sleeve 7 is rotated in the opposite direction to disengage it from the second locking sleeve 8, and the second locking sleeve 8 is rotated in the opposite direction to disengage it from the second filling pipe 64, cutting off the liquid chlorine passage. Throughout the process, the threaded structure of the sealing seat 62, the sealing ring 63 and the double locking sleeve, together with the uniform locking force of the locking mechanism 5, ensures that there is no risk of leakage under high pressure.

[0030] In summary, this utility model achieves uniform locking and quick assembly / disassembly of the cover plate and connecting pipe through the snap-fit ​​design of the locking mechanism and the fixing ring, effectively avoiding the problems of uneven force and wear in traditional sealing structures; the filling mechanism, combined with the double locking sleeve and shut-off valve, forms a multi-layer sealing system, and the rubber sealing seat and sealing ring significantly improve the anti-leakage performance under high pressure.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A liquid chlorine filling leak-proof intelligent connection device, comprising a liquid chlorine storage tank (1), characterized in that, A connecting pipe (2) is installed on the top of the liquid chlorine storage tank (1). A fixing ring (3) is fixedly sleeved on the connecting pipe (2). A cover plate (4) is installed on the connecting pipe (2). A locking mechanism (5) is installed on the side of the cover plate (4). A filling mechanism (6) is installed on the cover plate (4). A first locking sleeve (7) is sleeved on the filling mechanism (6). A second locking sleeve (8) is installed inside the first locking sleeve (7). A feed pipe (9) is fixed on the second locking sleeve (8). The locking mechanism (5) includes a rotating shaft (51) rotatably mounted on the cover plate (4), a movable frame (52) rotatably connected to the rotating shaft (51), and fixed plates (53) fixed at both ends inside the movable frame (52). Adjusting rods (54) are rotatably connected to the two fixed plates (53), and locking blocks (55) are threadedly connected to the adjusting rods (54).

2. The intelligent connection device for preventing leakage during liquid chlorine filling according to claim 1, characterized in that, The locking block (55) is slidably connected to the movable frame (52), and the locking block (55) is snap-fit ​​connected to the fixing ring (3).

3. The intelligent connection device for preventing leakage during liquid chlorine filling according to claim 1, characterized in that, The number of locking mechanisms (5) is at least four, and the four locking mechanisms (5) are located on the side of the cover plate (4) and are distributed in a circumferential array.

4. The intelligent connection device for preventing leakage during liquid chlorine filling according to claim 1, characterized in that, The locking mechanism (5) locks the cover plate (4) onto the connecting pipe (2) via the fixing ring (3).

5. The intelligent connection device for preventing leakage during liquid chlorine filling according to claim 1, characterized in that, The filling mechanism (6) includes a first filling tube (61) installed on the cover plate (4), the first filling tube (61) is inserted into the interior of the connecting tube (2), a sealing seat (62) and a sealing ring (63) are fixedly sleeved on the first filling tube (61), a second filling tube (64) is installed on the top of the first filling tube (61), and a shut-off valve (65) is installed inside the second filling tube (64).

6. The intelligent connection device for preventing leakage during liquid chlorine filling according to claim 5, characterized in that, The first locking sleeve (7) is installed at the end of the second filling tube (64) away from the first filling tube (61), and the second locking sleeve (8) is threaded onto the outer peripheral wall of the second filling tube (64).

7. The intelligent connection device for preventing leakage during liquid chlorine filling according to claim 6, characterized in that, The outer surface of the second locking sleeve (8) is threaded, and the second locking sleeve (8) is connected to the inner peripheral wall of the first locking sleeve (7) through the thread.

8. The intelligent connection device for preventing leakage during liquid chlorine filling according to claim 5, characterized in that, Both the sealing seat (62) and the sealing ring (63) are made of rubber.

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