Safety exhaust valve

Abstract

The utility model relates to the technical field of exhaust valves, in particular to a safety exhaust valve. In order to solve the problems of liquid overflow, alkali liquor overflow, tank body corrosion caused by acid liquor, environmental pollution, sanitation and cleaning workload increase and worker burning risk at the position of an oil tank exhaust valve, the following technical scheme is provided: the oil tank exhaust valve comprises an exhaust valve body used for exhausting and pressure relief and preventing carried liquid from being discharged; the exhaust valve body comprises a shell, an exhaust pipe is connected between the shell and the tank body, a filter screen is installed at the position, corresponding to the exhaust pipe, in the shell, a protective cover is arranged on the outer side of the filter screen, an elastic rod is fixedly connected to the end, away from the exhaust pipe, of the filter screen, and a limiting cap is connected to the end, away from the filter screen, of the elastic rod. According to the utility model, the risks of tank body corrosion, environmental pollution and worker injury caused by overflowing liquid can be effectively reduced, and meanwhile, the safety and the cleanliness in the production process are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to exhaust valve technical field especially relates to a safe exhaust valve. BACKGROUND

[0002] The semi-open exhaust valve is arranged on the oil tank, the valve is kept partly open, the gas in the oil tank is allowed to flow outward, and the pressure difference between the inside and outside is relieved. This design can avoid the deformation or damage of the oil tank caused by excessive pressure. However, when the flow impact is too large during the grease production and CIP cleaning process, liquid may overflow from the position of the oil tank exhaust valve, the alkaline solution and acid solution may corrode the tank body, and may also pollute the environment and increase the workload of sanitary cleaning. In addition, the alkaline solution and acid solution may also cause burns to the workers. In view of this, the utility model provides a safe exhaust valve. SUMMARY

[0003] The utility model discloses a safe exhaust valve which can solve the problems of liquid overflow from the position of the oil tank exhaust valve, corrosion of the tank body by the alkaline solution and acid solution, pollution of the environment, increase of the workload of sanitary cleaning, and risk of burns to the workers.

[0004] The utility model discloses a technical scheme of a safe exhaust valve, which comprises an exhaust valve body for exhaust pressure relief and liquid discharge prevention, the exhaust valve body comprises a shell, an exhaust pipe is connected between the shell and a tank body, a filter screen is installed at a position corresponding to the exhaust pipe inside the shell, a protective cover is arranged on the outer side of the filter screen, an elastic rod is fixedly connected to one end of the filter screen away from the exhaust pipe, a limiting cap is connected to the other end of the elastic rod away from the filter screen, a liquid discharge pipe is arranged on the side of the exhaust pipe and communicates with the shell, the liquid discharge pipe is arranged on the outer side of the protective cover, and the liquid in the tank is discharged through the liquid discharge pipe; a protective cover is installed on the side of the shell away from the exhaust pipe, the protective cover is arranged between the protective cover and the limiting cap; a connecting assembly is arranged on the outer wall of the shell, the connecting assembly is used for installing the protective cover to the outer side of the shell; and a liquid discharge mechanism is installed on the inner wall of the shell, and the liquid discharge mechanism is used for accelerating the discharge of the liquid in the shell.

[0005] Optionally, the other end of the elastic rod away from the filter screen is fixedly connected with a connecting block, the connecting block is threadedly connected with the limiting cap, and the protective cover is fixedly connected with the connecting block.

[0006] Optionally, a through hole with an inner diameter larger than the diameter of the connecting block is formed in the protective cover.

[0007] Optionally, the connecting assembly comprises a fixed block fixedly connected to the outer ring of the shell, the fixed block is in L-shaped structure in cross section, a threaded ring is threadedly connected to the inner side of the fixed block, a plurality of slide grooves are formed in the threaded ring, a limiting rod is fixedly connected in the slide grooves, a sliding block is slidably connected to the limiting rod, and the sliding block is slidably connected in the slide grooves.

[0008] Optionally, a spring is sleeved on the outer side of the limiting rod, and the spring is arranged on the side of the sliding block away from the exhaust pipe.

[0009] Optionally, the liquid discharging mechanism comprises a fixed ring fixedly connected to the inner wall of the shell, a limiting ring is slidably connected in the fixed ring, the limiting ring is in T-shaped structure in cross section, a rotating ring is arranged on the inner side of the limiting ring, a plurality of mounting blocks are fixedly connected to the inner side of the rotating ring, the plurality of mounting blocks are arranged in annular array, a drive vane is arranged at one end of the mounting block, and the drive vane is arranged in an inclined manner.

[0010] Optionally, a plurality of connecting plates are further fixedly connected to the inner side of the rotating ring, the plurality of connecting plates are arranged in annular array, and a push plate is fixedly connected to the bottom of the connecting plate.

[0011] Optionally, the push plate is located between the shell and the protective cover.

[0012] In summary, the present application has at least one of the following beneficial technical effects:

[0013] The utility model discloses a setting of exhaust valve body can make elastic bar stretch when the pressure in the jar is too large, and gas reaches its outer side through the protective cover and is discharged through the through -hole formed on the protective cover, realizes pressure relief, prevents the deformation or damage caused by the pressure in the jar being too large;

[0014] Further through the setting of the protective cover and the connecting assembly, liquid leakage is effectively prevented, liquid enters the inside of the protective cover through the filter screen, the protective cover is away from the exhaust pipe when the pressure in the inside of the protective cover is too large, liquid enters the outside of the protective cover at the same time, air flow drives the drive vane to rotate, thereby driving the push plate to rotate and promoting liquid to be discharged through the liquid discharge pipe, and liquid leakage is effectively prevented.

[0015] In summary, the utility model can effectively reduce the risk of corrosion of the tank, environmental pollution and injury to workers caused by the overflow liquid, and improve the safety and cleanliness of the production process. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The structure diagram of the safety type exhaust valve is given.

[0017] Figure 2 Yes Figure 1a cross-sectional structural schematic view of the embodiment;

[0018] Figure 3 is Figure 2 an enlarged schematic view of A in the embodiment;

[0019] Figure 4 is Figure 2 an enlarged schematic view of B in the embodiment;

[0020] Figure 5 is a structural schematic view of the liquid drainage mechanism.

[0021] Reference signs:

[0022] 1, exhaust valve body; 11, outer shell; 12, exhaust pipe; 13, filter screen; 14, protective cover; 15, elastic rod; 16, limiting cap; 17, liquid drainage pipe; 18, connecting block;

[0023] 2, protective cover;

[0024] 3, connecting assembly; 31, fixed block; 32, threaded ring; 33, sliding groove; 34, limiting rod; 35, sliding block; 36, spring;

[0025] 4, liquid drainage mechanism; 41, fixed ring; 42, limiting ring; 43, rotating ring; 44, mounting block; 45, driving blade; 46, connecting plate; 47, push plate. DETAILED DESCRIPTION

[0026] The technical solutions of the present application will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments.

[0027] The components of the embodiments of the present application generally described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but only represents selected embodiments of the application.

[0028] Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0029] In the description of the utility model, it needs to explain, the term "center", "upper", "lower", "left", "right", "vertical", "horizontal", "internal", "external" and so on indicate the orientation or position relation is based on the orientation or position relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the device or element must have a particular orientation, a particular orientation and operation, therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0030] In the description of the utility model, it needs to explain, unless otherwise expressly provided and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0031] Embodiment

[0032] As Figures 1 to 5 shown, the utility model provides a kind of safety exhaust valve, including the liquid discharge of being used for exhaust pressure relief simultaneously preventing carrying exhaust valve body 1, exhaust valve body 1 includes shell 11, shell 11 is connected with the exhaust pipe 12 between tank body, it is convenient for tank body and shell 11 communication.Exhaust pipe 12 corresponding position is installed with filter screen 13 in the inside of shell 11, for filtering gas, while buffering the flow rate of liquid into the inside of shell 11.Filter screen 13 outer side is provided with protective cover 14, gas carries liquid and is ejected through filter screen 13, liquid is sprayed in the inner wall of protective cover 14, then gathers in protective cover 14, prevents liquid splashing.Filter screen 13 is fixedly connected with elastic rod 15 at one end away from exhaust pipe 12, one end of elastic rod 15 away from filter screen 13 is connected with limit cap 16, and limit cap 16 is used for limiting.Exhaust pipe 12 side is provided with liquid discharge pipe 17 in communication with shell 11, and liquid discharge pipe 17 is arranged on the outer side of protective cover 14, and liquid in tank is discharged through liquid discharge pipe 17.Elastic rod 15 is fixedly connected with connecting block 18 at one end away from filter screen 13, connecting block 18 is screw-connected with limit cap 16, protective cover 14 is fixedly connected with connecting block 18, so that when the internal pressure of protective cover 14 is too large, elastic rod 15 is stretched, so that protective cover 14 is away from exhaust pipe 12, so that air and liquid can flow out from the gap between protective cover 14 and shell 11 to the outer side of protective cover 14.

[0033] Specifically, the exhaust valve comprises a protective cover 2 installed on the outer shell 11 away from the exhaust pipe 12 side, which is used to further prevent liquid splashing to the outside to pollute the surrounding environment. The protective cover 2 is arranged between the protective cover 14 and the limiting cap 16, and a through hole with a larger diameter than the connecting block 18 is formed on the protective cover 2, so that the gas in the protective cover 14 can flow out through the gap between the protective cover 14 and the outer shell 11, and then be discharged through the through hole formed on the protective cover 2.

[0034] Further, the exhaust valve comprises a connecting assembly 3 arranged on the outer wall of the outer shell 11, which is used to install the protective cover 2 to the outer side of the outer shell 11. The connecting assembly 3 comprises a fixed block 31 fixedly connected to the outer ring of the outer shell 11, and the position of the fixed block 31 is fixed. The cross section of the fixed block 31 is L-shaped structure, and a threaded ring 32 is threadedly connected to the inner side of the fixed block 31. Four sets of sliding grooves 33 are formed in the threaded ring 32, and a limiting rod 34 is fixedly connected in the sliding groove 33. A sliding block 35 is slidingly connected to the limiting rod 34, and the sliding block 35 is slidingly connected in the sliding groove 33, and the movement of the sliding block 35 is stable. The four sets of sliding blocks 35 are fixedly connected to the outer side of the protective cover 2, so that the protective cover 14 pushes the protective cover 2 to move synchronously when moving, and the protective cover 2 moves stably through the limiting action of the sliding block 35 when moving. The outer side of the limiting rod 34 is sleeved with a spring 36, and the spring 36 is arranged on the side of the sliding block 35 away from the exhaust pipe 12, and the spring 36 is used to release the elastic force to facilitate the reset of the protective cover 2. At the same time, the protective cover 2 is rotated to drive the threaded ring 32 to rotate synchronously through the sliding block 35, which is convenient for the threaded connection between the threaded ring 32 and the fixed block 31 to realize the installation of the protective cover 2, and the installation and disassembly of the protective cover 2 are convenient, so that the maintenance and cleaning operation is simple.

[0035] Further, the exhaust valve further comprises a liquid discharge mechanism 4 installed on the inner wall of the shell 11, which is used to accelerate the discharge of liquid in the shell 11. The liquid discharge mechanism 4 comprises a fixed ring 41 fixedly connected to the inner wall of the shell 11, and the position of the fixed ring 41 is fixed. A limiting ring 42 is slidingly connected in the fixed ring 41, the cross section of the limiting ring 42 is in a T-shaped structure, a rotating ring 43 is installed on the inner side of the limiting ring 42, and the T-shaped structure of the limiting ring 42 makes the connection of the rotating ring 43 stable, so that the rotating ring 43 can rotate in place. A plurality of groups of mounting blocks 44 are fixedly connected to the inner side of the rotating ring 43, the mounting blocks 44 are arranged in an annular array, and the mounting blocks 44 rotate synchronously with the rotating ring 43. One end of the mounting block 44 is provided with a drive blade 45, and the drive blade 45 is arranged to be inclined, so that when the high-pressure gas passes through the drive blade 45, the rotating ring 43 is driven to rotate by the drive blade 45. A plurality of groups of connecting plates 46 are fixedly connected to the inner side of the rotating ring 43, and the rotating ring 43 drives the plurality of groups of connecting plates 46 to rotate synchronously. The plurality of groups of connecting plates 46 are arranged in an annular array, and the bottom of the connecting plate 46 is fixedly connected with a push plate 47, the push plate 47 is located between the shell 11 and the protective cover 14, and the push plate 47 rotates synchronously with the connecting plate 46 to promote the liquid between the shell 11 and the protective cover 14 to be discharged through the liquid discharge pipe 17.

[0036] In the embodiment, when the gas pressure in the tank is too large, the pressure in the protective cover 14 is also increased synchronously, so that the elastic rod 15 is stretched, the protective cover 14 moves away from the exhaust pipe 12, and the protective cover 2 moves synchronously and presses the spring 36. The gas flows out between the protective cover 14 and the shell 11, and is discharged through the through hole in the protective cover 2. At the same time, when the gas passes through the drive blade 45, the rotating ring 43 is driven to rotate, thereby driving the connecting plate 46 and the push plate 47 to rotate synchronously. When the gas carries liquid, the liquid is filtered by the filter screen 13 and sprayed on the inner wall of the protective cover 14. When the pressure is too large, the protective cover 14 moves away from the exhaust pipe 12, and the liquid enters the interlayer position between the shell 11 and the protective cover 14. With the rotation of the connecting plate 46 and the push plate 47, the liquid can be quickly discharged through the liquid discharge pipe 17, and the recovery pipe is connected at the position of the liquid discharge pipe 17 to prevent liquid leakage. At the same time, during maintenance, the protective cover 2 can be rotated to drive the threaded ring 32 to rotate in the fixed block 31, so as to take down the protective cover 2 and clean and maintain the inside of the exhaust valve body 1.

[0037] The above specific embodiments are only optional embodiments of the present application, and based on the technical solutions of the present application and the related inspirations of the above embodiments, those skilled in the art can make various alternative improvements and combinations on the above specific embodiments.

Claims

1. A safety-type exhaust valve, characterized in that, include: An exhaust valve body (1) for venting and depressurizing while preventing the discharge of carried liquid. The exhaust valve body (1) includes a shell (11). An exhaust pipe (12) is connected between the shell (11) and the tank. A filter screen (13) is installed inside the shell (11) at a position corresponding to the exhaust pipe (12). A protective cover (14) is provided on the outside of the filter screen (13). An elastic rod (15) is fixedly connected to one end of the filter screen (13) away from the exhaust pipe (12). A limit cap (16) is connected to one end of the elastic rod (15) away from the filter screen (13). A drain pipe (17) communicating with the shell (11) is provided on the side of the exhaust pipe (12). The drain pipe (17) is located outside the protective cover (14). Liquid discharged from the tank is discharged through the drain pipe (17). A protective cover (2) is installed on the side of the housing (11) away from the exhaust pipe (12), and the protective cover (2) is disposed between the protective cover (14) and the limiting cap (16); A connecting component (3) is disposed on the outer wall of the housing (11), the connecting component (3) being used to install the protective cover (2) onto the outside of the housing (11); A draining mechanism (4) is installed on the inner wall of the housing (11) to accelerate the discharge of liquid from the housing (11).

2. The safety exhaust valve according to claim 1, characterized in that, The end of the elastic rod (15) away from the filter screen (13) is fixedly connected to a connecting block (18), the connecting block (18) is threadedly connected to the limiting cap (16), and the protective cover (14) is fixedly connected to the connecting block (18).

3. A safety-type exhaust valve according to claim 2, characterized in that, The protective cover (2) has a through hole with an inner diameter larger than that of the connecting block (18).

4. A safety exhaust valve according to claim 3, characterized in that, The connecting assembly (3) includes a fixing block (31) fixedly connected to the outer ring of the outer shell (11). The fixing block (31) has an L-shaped cross-section. A threaded ring (32) is threadedly connected to the inner side of the fixing block (31). Multiple sets of sliding grooves (33) are opened in the threaded ring (32). A limiting rod (34) is fixedly connected in the sliding groove (33). A slider (35) is slidably connected on the limiting rod (34). The slider (35) is slidably connected in the sliding groove (33). Multiple sets of sliders (35) are fixedly connected to the outside of the protective cover (2).

5. A safety-type exhaust valve according to claim 4, characterized in that, A spring (36) is sleeved on the outside of the limiting rod (34), and the spring (36) is located on the side of the slider (35) away from the exhaust pipe (12).

6. A safety-type exhaust valve according to claim 5, characterized in that, The drainage mechanism (4) includes a fixed ring (41) fixedly connected to the inner wall of the outer shell (11). A limiting ring (42) is slidably connected in the fixed ring (41). The limiting ring (42) has a T-shaped cross-section. A rotating ring (43) is installed on the inner side of the limiting ring (42). Multiple sets of mounting blocks (44) are fixedly connected to the inner side of the rotating ring (43). The multiple sets of mounting blocks (44) are arranged in a ring array. A drive blade (45) is installed at one end of the mounting block (44). The drive blade (45) is inclined.

7. A safety exhaust valve according to claim 6, characterized in that, The inner side of the rotating ring (43) is also fixedly connected to multiple sets of connecting plates (46), which are arranged in a ring array. A push plate (47) is fixedly connected to the bottom of the connecting plate (46).

8. A safety exhaust valve according to claim 7, characterized in that, The push plate (47) is located between the outer shell (11) and the protective cover (14).

Images