Hydrochloric acid storage tank breathing device

Abstract

The utility model relates to the technical field of hydrochloric acid storage tanks, in particular to a hydrochloric acid storage tank breathing device which comprises a storage tank, a feeding pipe is fixedly connected to the top of the storage tank, a sealing disc is installed on the top of the feeding pipe, a breathing mechanism is installed in the feeding pipe, a purification mechanism is installed in the sealing disc, and a ventilation mechanism is installed in the purification mechanism. The breathing mechanism comprises an air pressure box, an air inlet pipe is fixedly connected to the bottom of the air pressure box, a reset spring is fixedly connected to the inner bottom wall of the air pressure box, a moving plate is fixedly connected to the top of the reset spring, a lifting rod is fixedly connected to the top of the moving plate, and a connecting rod is fixedly connected to the top of the lifting rod. The hydrochloric acid gas purification device has the advantages that the hydrochloric acid gas purification device is simple in structure and convenient to use, pressure relief breathing treatment can be automatically carried out on the hydrochloric acid gas purification device according to the air pressure condition in the storage tank, and the purification device can be conveniently replaced, so that the hydrochloric acid gas purification effect is not influenced.

Description

Technical Field

[0001] The utility model relates to a breathing device for a hydrochloric acid storage tank and belongs to the technical field of hydrochloric acid storage tanks. Background Art

[0002] The hydrochloric acid storage tank is a tank specially used to store hydrochloric acid and other highly corrosive substances. It can be made of plastic or fiberglass. The tank breathing valve is an important accessory to protect the safety of the tank. It maintains the airtightness of the tank, reduces the volatilization loss of the stored products, and when necessary, automatically ventilates and adjusts the pressure inside and outside the tank, thus playing a role in the safety of the tank.

[0003] According to the authorized patent CN215351649U, in this patent, air is guided through a breathable connecting component and an air guiding connecting component. When air is required, the filter is sealed through a sealing cover, and when air is not required, the sealing cover needs to be opened, making it more flexible and changeable, easier to popularize, and more versatile in operation. However, it cannot automatically relieve the internal pressure according to the air pressure conditions inside the storage tank itself, and the hydrochloric acid gas has certain corrosiveness, so it needs to be purified when released, and the existing purification device is not convenient to replace, resulting in poor subsequent purification effect. Utility Model Content

[0004] The purpose of the utility model is to provide a breathing device for a hydrochloric acid storage tank. The utility model has a simple structure and is easy to use. It can automatically perform pressure relief breathing treatment on the storage tank according to the air pressure conditions inside the storage tank, and can facilitate the replacement of the purification device without affecting the purification effect of the hydrochloric acid gas, so as to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A hydrochloric acid storage tank breathing device comprises a storage tank, wherein a feed pipe is fixedly connected to the top of the storage tank, a sealing disk is installed on the top of the feed pipe, a breathing mechanism is installed inside the feed pipe, and a purification mechanism is installed inside the sealing disk.

[0007] The breathing mechanism includes an air pressure box, the bottom of which is fixedly connected to an air inlet pipe, the inner bottom wall of which is fixedly connected to a return spring, the top of which is fixedly connected to a movable plate, the top of which is fixedly connected to a lifting rod, the top of which is fixedly connected to a connecting rod, the top of which is movably connected to a sealing cover, the top of which is fixedly connected to a connecting plate, and a rotating rod is rotatably connected between the connecting plates.

[0008] The purification mechanism includes a mounting hole, a stabilizing plate is installed on the top of the sealing disk, a screw is rotatably connected inside the stabilizing plate, a rotating cover is fixedly connected to the top of the screw, a filter cartridge is installed inside the mounting hole, and a threaded hole is opened inside the filter cartridge.

[0009] Furthermore, the air pressure box is symmetrically distributed inside the feed pipe, and the air pressure box is fixedly connected to the inside of the feed pipe. Through the air pressure box being located inside the feed pipe, when the air pressure inside the storage tank increases, the pressure inside the air pressure box will increase.

[0010] Furthermore, the top of the air intake pipe is fixedly connected to the interior of the air pressure box, and the return spring is symmetrically distributed between the inner bottom wall of the air pressure box and the movable plate. The air intake pipe can be used to introduce the gas inside the storage tank into the interior of the air pressure box.

[0011] Furthermore, the connecting rod crosses the interior of the sealing disk, and the sealing cover is installed on the top of the sealing disk. The movement of the lifting rod can drive the connecting rod to move, so that the connecting rod drives the sealing cover to adjust its position.

[0012] Furthermore, the connecting rods are symmetrically distributed on the top of the sealed cover, and the rotating rods are fixedly connected to the outside of the sealed cover. Through the coordinated use of the rotating rods and the connecting plates, the connecting rods can drive the sealed cover to rotate.

[0013] Furthermore, the stabilizing plates are symmetrically distributed on the top of the sealing disk, and the screw is rotatably connected to the inside of the stabilizing plate through a rotating cover. Through the coordinated use of the stabilizing plate and the screw, the filter cartridge can be installed inside the mounting hole.

[0014] Furthermore, the number of the screws is the same as the number of the threaded holes, and the bottom of the screw is threadedly connected to the inside of the threaded hole. The screw is driven to rotate by the rotating cover, so that the screw enters the threaded hole inside the filter cartridge, thereby fixing the filter cartridge.

[0015] The beneficial effects of the utility model are:

[0016] The utility model is provided with a storage tank. When the air pressure inside the storage tank increases, the gas can be introduced into the interior of the air pressure box through the air inlet pipe at the bottom of the air pressure box. At this time, the pressure inside the air pressure box increases, so that the movable plate moves upward inside the air pressure box, and the movable plate drives the lifting rod to move, so that the lifting rod drives the connecting rod to move inside the sealing disk. At this time, the connecting rod drives the sealing cover to rotate through the cooperation of the rotating rod and the connecting plate, so that the sealing cover is opened, and the interior of the storage tank can be automatically decompressed and breathed. When the air pressure inside the storage tank returns to normal, the movable plate returns to its original position under the action of the reset spring, and the lifting rod also drives the connecting rod to move, so that the sealing cover again blocks the sealing disk to prevent gas leakage.

[0017] The utility model provides a sealing disk with a mounting hole inside the sealing disk, and the filter cartridge is placed inside the mounting hole by the cooperation of a screw and a stabilizing plate. When the pressure is released, the gas passes through the filter cartridge inside the mounting hole, thereby purifying the harmful gas. When the filter cartridge needs to be replaced, the rotating cover is rotated to drive the screw to rotate inside the stabilizing plate, so that the bottom of the screw is moved out of the threaded hole. At this time, the filter cartridge can be taken out from the inside of the mounting hole, thereby replacing the filter cartridge. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the specific embodiments of the present invention and do not constitute a limitation to the present invention.

[0019] Figure 1 It is a structural schematic diagram of a breathing device for a hydrochloric acid storage tank of the utility model;

[0020] Figure 2 It is a schematic diagram of the structure inside the feed pipe of a breathing device for a hydrochloric acid storage tank of the utility model;

[0021] Figure 3 It is a structural schematic diagram of a breathing mechanism of a breathing device for a hydrochloric acid storage tank of the utility model;

[0022] Figure 4 It is a structural schematic diagram of a purification mechanism of a breathing device for a hydrochloric acid storage tank of the utility model;

[0023] Figure 5 It is a structural schematic diagram of the top of a sealing disk of a breathing device for a hydrochloric acid storage tank of the utility model;

[0024] Numbers in the figure: 1. Storage tank; 2. Feed pipe; 3. Sealing disk; 4. Breathing mechanism; 41. Air pressure box; 42. Inlet pipe; 43. Return spring; 44. Moving plate; 45. Lifting rod; 46. Connecting rod; 47. Sealed cover; 48. Connecting plate; 49. Rotating rod; 5. Purification mechanism; 51. Mounting hole; 52. Stabilizing plate; 53. Screw; 54. Rotating cover; 55. Filter cartridge; 56. Threaded hole. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Example 1 Please refer to Figure 1-Figure 4 , the utility model provides a technical solution:

[0027] A breathing device for a hydrochloric acid storage tank comprises a storage tank 1, wherein a feed pipe 2 is fixedly connected to the top of the storage tank 1, a sealing disk 3 is installed on the top of the feed pipe 2, a breathing mechanism 4 is installed inside the feed pipe 2, a purification mechanism 5 is installed inside the sealing disk 3, the breathing mechanism 4 comprises an air pressure box 41, an air inlet pipe 42 is fixedly connected to the bottom of the air pressure box 41, a return spring 43 is fixedly connected to the inner bottom wall of the air pressure box 41, a moving plate 44 is fixedly connected to the top of the return spring 43, a lifting rod 45 is fixedly connected to the top of the moving plate 44, a connecting rod 46 is fixedly connected to the top of the lifting rod 45, a sealing cover 47 is movably connected to the top of the connecting rod 46, a connecting plate 48 is fixedly connected to the top of the sealing disk 3, and a rotating rod 49 is rotatably connected between the connecting plates 48.

[0028] Specifically, Figure 1 As shown, the air pressure box 41 is symmetrically distributed inside the feed pipe 2, and the air pressure box 41 is fixedly connected to the inside of the feed pipe 2, the top of the air intake pipe 42 is fixedly connected to the inside of the air pressure box 41, the return spring 43 is symmetrically distributed between the inner bottom wall of the air pressure box 41 and the movable plate 44, the connecting rod 46 crosses the inside of the sealing disk 3, the sealing cover 47 is installed on the top of the sealing disk 3, the connecting rod 46 is symmetrically distributed on the top of the sealing cover 47, and the rotating rod 49 is fixedly connected to the outside of the sealing cover 47.

[0029] Specifically: the air pressure box 41 is located inside the feed pipe 2. When the air pressure inside the storage tank 1 increases, the pressure inside the air pressure box 41 will increase. The air inside the storage tank 1 can be introduced into the air pressure box 41 through the action of the air intake pipe 42. The movement of the lifting rod 45 can drive the connecting rod 46 to move, so that the connecting rod 46 drives the sealed cover 47 to adjust its position. The connecting rod 46 can drive the sealed cover 47 to rotate by using the rotating rod 49 and the connecting plate 48.

[0030] In this embodiment: by setting up a storage tank 1, when the air pressure inside the storage tank 1 increases, the gas can be introduced into the interior of the air pressure box 41 through the air inlet pipe 42 at the bottom of the air pressure box 41. At this time, the pressure inside the air pressure box 41 increases, causing the movable plate 44 to move upward inside the air pressure box 41, and the movable plate 44 drives the lifting rod 45 to move, so that the lifting rod 45 drives the connecting rod 46 to move inside the sealing disk 3. At this time, the rotating rod 49 and the connecting plate 48 are used in coordination, so that the connecting rod 46 drives the sealing cover 47 to rotate, so that the sealing cover 47 is opened, and the interior of the storage tank 1 can be automatically decompressed and breathed. When the air pressure inside the storage tank 1 returns to normal, the movable plate 44 returns to its original position under the action of the reset spring 43. At this time, the lifting rod 45 will also drive the connecting rod 46 to move, so that the sealing cover 47 will cover the sealing disk 3 again to prevent gas leakage.

[0031] Example 2 Please refer to Figure 1 , Figure 2 and Figure 4 The difference between this embodiment and embodiment 1 is that the purification mechanism 5 includes a mounting hole 51, a stabilizing plate 52 is installed on the top of the sealing disk 3, a screw 53 is rotatably connected inside the stabilizing plate 52, a rotating cover 54 is fixedly connected to the top of the screw 53, a filter cartridge 55 is installed inside the mounting hole 51, and a threaded hole 56 is opened inside the filter cartridge 55.

[0032] Specifically, Figure 1-4 As shown, the stabilizing plate 52 is symmetrically distributed on the top of the sealing disk 3 , and the screw rods 53 are rotatably connected to the inside of the stabilizing plate 52 through the rotating cover 54 . The number of the screw rods 53 is the same as the number of the threaded holes 56 , and the bottom of the screw rods 53 is threadedly connected to the inside of the threaded holes 56 .

[0033] Specifically, by using the stabilizing plate 52 in conjunction with the screw 53 , the filter cartridge 55 can be installed inside the mounting hole 51 , and the screw 53 is driven to rotate by the rotating cover 54 , so that the screw 53 enters the threaded hole 56 inside the filter cartridge 55 , thereby fixing the filter cartridge 55 .

[0034] In the present embodiment: a sealing disk 3 is provided, a mounting hole 51 is opened inside the sealing disk 3, and a screw 53 is used in conjunction with a stabilizing plate 52 to place a filter cartridge 55 inside the mounting hole 51. When the pressure is released, the gas passes through the filter cartridge 55 inside the mounting hole 51, thereby purifying harmful gases. When the filter cartridge 55 needs to be replaced, the rotating cover 54 is rotated, so that the rotating cover 54 drives the screw 53 to rotate inside the stabilizing plate 52, so that the bottom of the screw 53 is moved out of the threaded hole 56. At this time, the filter cartridge 55 can be taken out from the inside of the mounting hole 51, so that the filter cartridge 55 can be replaced.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hydrochloric acid storage tank breathing device, comprising a storage tank (1), characterized in that: The top of the storage tank (1) is fixedly connected to a feed pipe (2), a sealing disk (3) is installed on the top of the feed pipe (2), a breathing mechanism (4) is installed inside the feed pipe (2), and a purification mechanism (5) is installed inside the sealing disk (3); The breathing mechanism (4) comprises an air pressure box (41), the bottom of the air pressure box (41) is fixedly connected to an air inlet pipe (42), the inner bottom wall of the air pressure box (41) is fixedly connected to a return spring (43), the top of the return spring (43) is fixedly connected to a moving plate (44), the top of the moving plate (44) is fixedly connected to a lifting rod (45), the top of the lifting rod (45) is fixedly connected to a connecting rod (46), the top of the connecting rod (46) is movably connected to a sealing cover (47), the top of the sealing disk (3) is fixedly connected to a connecting plate (48), and a rotating rod (49) is rotatably connected between the connecting plates (48); The purification mechanism (5) comprises a mounting hole (51), a stabilizing plate (52) is mounted on the top of the sealing disk (3), a screw (53) is rotatably connected to the inside of the stabilizing plate (52), a rotating cover (54) is fixedly connected to the top of the screw (53), a filter cartridge (55) is mounted inside the mounting hole (51), and a threaded hole (56) is provided inside the filter cartridge (55).

2. A hydrochloric acid storage tank breathing device according to claim 1, characterized in that: The air pressure boxes (41) are symmetrically distributed inside the feed pipe (2), and the air pressure boxes (41) are fixedly connected to the inside of the feed pipe (2).

3. A hydrochloric acid storage tank breathing device according to claim 1, characterized in that: The top of the air inlet pipe (42) is fixedly connected to the inside of the air pressure box (41), and the return spring (43) is symmetrically distributed between the inner bottom wall of the air pressure box (41) and the movable plate (44).

4. A hydrochloric acid storage tank breathing device according to claim 1, characterized in that: The connecting rod (46) crosses the interior of the sealing disk (3), and the sealing cover (47) is installed on the top of the sealing disk (3).

5. A hydrochloric acid storage tank breathing device according to claim 1, characterized in that: The connecting rods (46) are symmetrically distributed on the top of the sealed cover (47), and the rotating rod (49) is fixedly connected to the outside of the sealed cover (47).

6. A hydrochloric acid storage tank breathing device according to claim 1, characterized in that: The stabilizing plates (52) are symmetrically distributed on the top of the sealing disk (3), and the screw rod (53) is rotatably connected to the inside of the stabilizing plate (52) via a rotating cover (54).

7. A hydrochloric acid tank breathing device according to claim 1, characterized in that: The number of the screw rods (53) and the number of the threaded holes (56) are the same, and the bottom of the screw rod (53) is threadedly connected to the inside of the threaded hole (56).

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