Anti-freezing type low-temperature storage tank breather valve

Abstract

The utility model relates to a breathing valve technical field especially is a kind of anti-freezing low temperature storage tank breathing valve, including breathing valve body, breathing valve body air inlet is equipped with air inlet cylinder, air inlet cylinder inside is equipped with moisture absorption cylinder, symmetrically being equipped with the slot in the upper and lower sides of moisture absorption cylinder, the slot inside is connected with the clamping block of snap fit, the top end fixedly connected with net cover of the clamping block located upper, moisture absorption cylinder inside bottom end fixedly connected with support net, in the utility model, when breathing valve body absorbs outside air, air can enter moisture absorption cylinder by passing through support net, the dry granule in moisture absorption cylinder can absorb moisture in air at this time, to avoid the moisture in air to continue to accumulate in breathing valve body inside and lead to breathing valve body icing.

Description

Technical Field

[0001] This utility model relates to the field of breather valve technology, specifically to a cryogenic breather valve for antifreeze cryogenic storage tanks. Background Technology

[0002] A breather valve for a storage tank is a pressure protection device designed for media storage. Its core function is to automatically adjust the pressure balance inside and outside the storage tank to prevent overpressure or vacuum from causing damage to the tank structure, while reducing the loss of media volatilization. These valves usually adopt a pilot-operated structure or integrated flame arrestor function, combined with low-temperature resistant materials, and can work stably in extreme temperature ranges.

[0003] Existing breather valves are widely used, but when the outside temperature is low, after the breather valve absorbs cold air from the outside for a period of time, the moisture in the cold air will accumulate inside the breather valve and freeze, causing the breather valve to become blocked and unusable. Therefore, an antifreeze type breather valve for cryogenic storage tanks is proposed to address the above problem. Utility Model Content

[0004] The purpose of this invention is to provide an antifreeze cryogenic storage tank breather valve to solve the problem mentioned in the background art that existing breather valves are prone to freezing at low temperatures.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A cryogenic tank breather valve for freeze protection includes a breather valve body. An air inlet is installed at the air inlet of the breather valve body. A moisture-absorbing cylinder is provided inside the air inlet. The moisture-absorbing cylinder has symmetrical slots on its upper and lower sides. A locking block is engaged inside the slot. A mesh cover is fixedly connected to the top of the upper locking block. A support net is fixedly connected to the bottom of the inner side of the moisture-absorbing cylinder. A dustproof net is fixedly connected to the bottom of the lower locking block. A sealing ring is fixedly connected to the top of the dustproof net. Multiple connecting plates are fixedly connected to the outer side of the dustproof net. A first mounting plate is fixedly connected to the top of the connecting plates. A second mounting plate is fixedly connected to the outer side of the air inlet below the first mounting plate. Drying particles are provided inside the moisture-absorbing cylinder. A clamping device is installed on the outer side of the air inlet above the first mounting plate.

[0006] Preferably, the top end of the sealing ring is tightly fitted to the bottom end of the air inlet cylinder, and the bottom end of the first mounting plate is tightly fitted to the top end of the second mounting plate.

[0007] Preferably, the clamping device includes a clamping ring disposed at the top of the first mounting plate, a plurality of vertically arranged connecting rods are fixedly connected to the top of the clamping ring, a sliding plate is fixedly connected to the top of the connecting rods, a fixed cylinder is slidably connected to the outside of the sliding plate, and a clamping spring is provided on the inside of the fixed cylinder.

[0008] Preferably, the clamping ring is disposed on the outside of the air intake cylinder and is slidably connected to the air intake cylinder, the connecting rod passes through the fixed cylinder and is slidably connected to the fixed cylinder, and the fixed cylinder is fixedly connected to the outside of the air intake cylinder.

[0009] Preferably, the bottom end of the compression spring is fixedly connected to the slide plate, and the top end of the compression spring is fixedly connected to the inner side of the fixed cylinder.

[0010] Compared with the prior art, the beneficial effects of this utility model are: 1. In this utility model, by setting a moisture-absorbing cylinder, a slot, a block, a mesh cover, a support mesh, a dustproof mesh, a sealing ring, a connecting plate, a first mounting plate, a second mounting plate, and drying particles, when the breathing valve body absorbs outside air, the air can pass through the support mesh and enter the moisture-absorbing cylinder. At this time, the drying particles in the moisture-absorbing cylinder can absorb the moisture in the air, thereby preventing the moisture in the air from continuously accumulating inside the breathing valve body and causing the breathing valve body to freeze. 2. In this utility model, the clamping device, clamping ring, connecting rod, sliding plate, fixing cylinder, and clamping spring are designed to allow for maintenance after the device has been used for a period of time. First, rotate the dustproof net to move the first mounting plate. When the first mounting plate disengages from the second mounting plate, the clamping spring resets, which in turn drives the clamping ring to reset. At this point, the moisture-absorbing cylinder can be removed, the dustproof net can be cleaned, and the dry particles can be replaced. This design simplifies the installation and disassembly of the device, making it easy for operators to use and maintain. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the air intake cylinder and its connecting components of the present invention; Figure 3 This is a schematic diagram of the moisture-absorbing cylinder installation structure of this utility model; Figure 4 This is a schematic diagram of the cross-sectional structure of the fixed cylinder of this utility model; Figure 5 This is a schematic diagram of the dustproof net installation structure of this utility model; Figure 6 This is a schematic diagram of the bottom structure of the moisture-absorbing cylinder of this utility model; Figure 7 This is a schematic diagram of the mesh cover installation structure of this utility model.

[0012] In the diagram: 1. Breathing valve body; 2. Air inlet cylinder; 3. Moisture absorption cylinder; 4. Slot; 5. Block; 6. Mesh cover; 7. Support mesh; 8. Dustproof mesh; 9. Sealing ring; 10. Connecting plate; 11. First mounting plate; 12. Second mounting plate; 13. Drying granules; 14. Presser; 141. Pressing ring; 142. Connecting rod; 143. Slide plate; 144. Fixing cylinder; 145. Pressing spring. Detailed Implementation

[0013] 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.

[0014] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0015] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0016] Please see Figure 1-7 This utility model provides a technical solution: A cryogenic breather valve for an antifreeze type includes a breather valve body 1. An air inlet cylinder 2 is installed at the air inlet of the breather valve body 1. A moisture-absorbing cylinder 3 is provided inside the air inlet cylinder 2. The moisture-absorbing cylinder 3 has symmetrical slots 4 on its upper and lower sides. A locking block 5 is engaged inside the slots 4. A mesh cover 6 is fixedly connected to the top of the upper locking block 5. A support net 7 is fixedly connected to the bottom of the inner side of the moisture-absorbing cylinder 3. A dustproof net 8 is fixedly connected to the bottom of the lower locking block 5. A sealing ring 9 is fixedly connected to the top of the dustproof net 8. Multiple connecting plates 10 are fixedly connected to the outer side of the dustproof net 8. A first mounting plate 11 is fixedly connected to the top of the connecting plate 10. A second mounting plate 12 is fixedly connected to the outer side of the air inlet cylinder 2 below the first mounting plate 11. The moisture-absorbing cylinder 3 has a mesh cover 6 on its inner side. The device includes drying particles 13. A clamping device 14 is installed on the outside of the air inlet cylinder 2 above the first mounting plate 11. The top of the sealing ring 9 is tightly fitted to the bottom of the air inlet cylinder 2, and the bottom of the first mounting plate 11 is tightly fitted to the top of the second mounting plate 12. Through the moisture absorption cylinder 3, the slot 4, the block 5, the mesh cover 6, the support mesh 7, the dustproof mesh 8, the sealing ring 9, the connecting plate 10, the first mounting plate 11, the second mounting plate 12, and the drying particles 13, when the breathing valve body 1 absorbs outside air, the air passes through the support mesh 7 and enters the moisture absorption cylinder 3. At this time, the drying particles 13 in the moisture absorption cylinder 3 can absorb the moisture in the air, thereby preventing the moisture in the air from continuously accumulating on the inside of the breathing valve body 1 and causing the breathing valve body 1 to freeze.

[0017] The clamping device 14 includes a clamping ring 141 disposed at the top of the first mounting plate 11. Multiple vertically arranged connecting rods 142 are fixedly connected to the top of the clamping ring 141. A sliding plate 143 is fixedly connected to the top of each connecting rod 142. A fixed cylinder 144 is slidably connected to the outer side of the sliding plate 143. A clamping spring 145 is disposed inside the fixed cylinder 144. The clamping ring 141 is disposed outside the air intake cylinder 2 and slidably connected to it. The connecting rods 142 pass through the fixed cylinder 144 and are slidably connected to it. The fixed cylinder 144 is fixedly connected to the outer side of the air intake cylinder 2. The bottom end of the clamping spring 145 is fixedly connected to the sliding plate 143. The top of 45 is fixedly connected to the inside of the fixed cylinder 144. Through the clamping device 14, clamping ring 141, connecting rod 142, sliding plate 143, fixed cylinder 144 and clamping spring 145, the device can be maintained after a period of use. First, rotate the dustproof net 8 to move the first mounting plate 11. When the first mounting plate 11 is separated from the second mounting plate 12, the clamping spring 145 resets and drives the clamping ring 141 to reset. At this time, the moisture absorption cylinder 3 can be taken out, the dustproof net 8 can be cleaned and the dry particles 13 can be replaced. This design makes the installation and disassembly of the device simple and convenient for operators to use and maintain.

[0018] Workflow: Before use, install the various components of the device. First, place the dry granules 13 inside the moisture-absorbing cylinder 3. When the moisture-absorbing cylinder 3 is full, cover the top of the moisture-absorbing cylinder 3 with the mesh cover 6, so that the upper locking block 5 is inserted into the inner side of the locking groove 4 and engaged with the locking groove 4. Then, place the moisture-absorbing cylinder 3 on top of the dustproof net 8, so that the lower locking block 5 is inserted into the inner side of the locking groove 4 and engaged with the locking groove 4. Next, place the moisture-absorbing cylinder 3 inside the air inlet cylinder 2 on one side of the breathing valve body 1. When the first mounting plate 11 at the top of the connecting plate 10 contacts the clamping ring 141, the clamping ring 141 drives the connecting rod 142 and the sliding plate 143 to slide inside the fixed cylinder 144, and the clamping spring 145 is compressed. When the top of the sealing ring 9 is tightly attached to the bottom of the air inlet cylinder 2, the dustproof net 8 can be rotated to move the first mounting plate 11 above the second mounting plate 12. This completes the installation of the device. When the breathing valve body 1 absorbs outside air, the dustproof net 8 can isolate dust in the air. The purified air passes through the support net 7 and enters the moisture absorption cylinder 3. At this time, the dry particles 13 in the moisture absorption cylinder 3 can absorb moisture in the air, thereby preventing moisture in the air from continuously accumulating inside the breathing valve body 1 and causing the breathing valve body 1 to freeze. After the device has been used for a period of time, it can be maintained. First, rotate the dustproof net 8 to move the first mounting plate 11. When the first mounting plate 11 is separated from the second mounting plate 12, the pressure spring 145 resets and drives the pressure ring 141 to reset. At this time, the moisture absorption cylinder 3 can be removed, the dustproof net 8 can be cleaned, and the dry particles 13 can be replaced. The design of the pressure device 14 and its connecting components makes the installation and disassembly steps of the device simple, which is convenient for operators to use and maintain.

[0019] Contents not described in detail in this specification are existing technologies known to those skilled in the art. Standard parts used in this invention can all be purchased commercially, and irregularly shaped parts can be custom-made according to the description and drawings. The specific connection methods for each part all employ conventional methods such as bolts, rivets, and welding, which are already mature technologies. The machinery, parts, and equipment all use conventional models from the prior art, and the circuit connections also employ conventional connection methods from the prior art, which will not be detailed here.

[0020] 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. A cryogenic tank breather valve with antifreeze properties, comprising a breather valve body (1), characterized in that: An air inlet cylinder (2) is installed at the air inlet of the breathing valve body (1). A moisture-absorbing cylinder (3) is provided inside the air inlet cylinder (2). The moisture-absorbing cylinder (3) has symmetrical slots (4) on its upper and lower sides. A locking block (5) is connected to the inside of the slot (4). A mesh cover (6) is fixedly connected to the top of the upper locking block (5). A support net (7) is fixedly connected to the bottom of the inside of the moisture-absorbing cylinder (3). A dustproof net (8) is fixedly connected to the bottom of the lower locking block (5). A sealing ring (9) is fixedly connected to the top of the dustproof net (8). Multiple connecting plates (10) are fixedly connected to the outside of the dustproof net (8). A first mounting plate (11) is fixedly connected to the top of the connecting plate (10). A second mounting plate (12) is fixedly connected to the outside of the air inlet cylinder (2) below the first mounting plate (11). Drying particles (13) are provided inside the moisture-absorbing cylinder (3). A clamping device (14) is installed on the outside of the air inlet cylinder (2) above the first mounting plate (11).

2. The antifreeze type cryogenic storage tank breather valve according to claim 1, characterized in that: The top of the sealing ring (9) is tightly fitted to the bottom of the air inlet cylinder (2), and the bottom of the first mounting plate (11) is tightly fitted to the top of the second mounting plate (12).

3. The antifreeze type cryogenic storage tank breather valve according to claim 1, characterized in that: The clamping device (14) includes a clamping ring (141) disposed at the top of the first mounting plate (11). A plurality of vertically arranged connecting rods (142) are fixedly connected to the top of the clamping ring (141). A sliding plate (143) is fixedly connected to the top of the connecting rods (142). A fixed cylinder (144) is slidably connected to the outside of the sliding plate (143). A clamping spring (145) is provided on the inside of the fixed cylinder (144).

4. The antifreeze type cryogenic storage tank breather valve according to claim 3, characterized in that: The clamping ring (141) is located outside the air inlet cylinder (2) and is slidably connected to the air inlet cylinder (2). The connecting rod (142) passes through the fixed cylinder (144) and is slidably connected to the fixed cylinder (144). The fixed cylinder (144) is fixedly connected to the outside of the air inlet cylinder (2).

5. The antifreeze type cryogenic storage tank breather valve according to claim 4, characterized in that: The bottom end of the compression spring (145) is fixedly connected to the slide plate (143), and the top end of the compression spring (145) is fixedly connected to the inner side of the fixed cylinder (144).

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