Safety valve for asphalt oil storage tank

Abstract

This utility model relates to the field of asphalt storage technology, and more particularly to a safety valve for an asphalt oil storage tank. The technical solution includes: an asphalt oil storage tank safety valve, comprising a filter assembly and a valve body. The filter assembly is located at the exhaust port at the top of the valve body. The filter assembly is used to filter and adsorb harmful substances in the discharged gas. A valve cavity is formed inside the valve body, and a valve seat is slidably disposed within the valve cavity. A valve stem is disposed on the valve seat, and a spring is movably sleeved on the valve stem. The spring abuts against the upper surface of the valve seat and the inner wall of the valve cavity. A valve cap is rotatably disposed at the top of the valve stem, and the valve cap abuts against the top opening of the valve cavity. Valve holes are equidistantly formed on the valve seat, and a regulating assembly is disposed on the valve body. This utility model automatically relieves and stabilizes the pressure inside the tank through the cooperation of the structures, while simultaneously filtering the discharged gas. Furthermore, the valve pressure, i.e., the opening pressure of the safety valve, can be adjusted, making it suitable for different operating conditions.

Description

Technical Field

[0001] This utility model relates to the field of asphalt storage technology, and in particular to a safety valve for an asphalt oil storage tank. Background Technology

[0002] During the use of asphalt oil storage tanks, heating may cause the gas inside the tank to expand, generating high pressure. If this pressure cannot be released in time, it may pose a safety hazard. Therefore, safety valves are usually installed to regulate the pressure inside the tank and ensure the safety of the storage environment. However, existing safety valves, while releasing pressure, often fail to effectively handle the released harmful gases, potentially causing environmental pollution, and their inability to effectively regulate valve pressure affects their performance.

[0003] Therefore, we propose a safety valve for asphalt oil storage tanks to solve the existing problems. Utility Model Content

[0004] The purpose of this invention is to address the problems existing in the background technology by proposing a safety valve for asphalt oil storage tanks.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a safety valve for an asphalt oil storage tank, comprising a filter assembly and a valve body, wherein the exhaust port at the top of the valve body is provided with a filter assembly, which is used to filter and adsorb harmful substances in the exhaust gas;

[0006] The valve body has a valve cavity inside, a valve seat is slidably disposed in the valve cavity, a valve stem is disposed on the valve seat, a spring is movably sleeved on the valve stem, the spring abuts between the upper surface of the valve seat and the inner wall of the valve cavity, a valve cap is rotatably disposed at the top of the valve stem, the valve cap abuts at the top opening of the valve cavity, and valve holes are equidistantly disposed on the valve seat. The above structure constitutes a safety valve, and the original length of the spring is greater than the height of the valve cavity.

[0007] The valve body is equipped with a control component, which is used to adjust the valve pressure of the safety valve.

[0008] Preferably, the filter assembly consists of a filter cartridge, a hollow carbon cylinder, an exhaust nozzle, and a screw cap. The filter cartridge is connected to the exhaust port at the top of the valve body, and the hollow carbon cylinder is inserted into the central axis inside the filter cartridge.

[0009] Preferably, the screw cap is threaded on the outer wall of the filter cartridge and squeezes and positions the hollow carbon cartridge, and the exhaust nozzle is located at the center of the screw cap and is connected to the hollow part of the hollow carbon cartridge.

[0010] Preferably, the filter cartridge has a threaded head at the air inlet and a threaded seat at the exhaust port of the valve body, with the threaded head threadedly engaged with the outer wall of the threaded seat.

[0011] Preferably, the control component consists of a rotating cap, a threaded block, and a threaded groove. The threaded block is located at the bottom end of the valve stem, and the threaded groove is formed inside the valve seat. The threaded block and the threaded groove are threadedly engaged.

[0012] Preferably, the rotating cap is located at the top of the valve stem, and the outer wall of the rotating cap is provided with paddles at equal intervals.

[0013] Preferably, the outer wall of the valve body is provided with a flange, and the flange is provided with mounting holes at equal intervals.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] During use, the safety valve for the asphalt oil storage tank of this utility model can be installed on the exhaust port of the asphalt oil storage tank through the cooperation of the flange and the anchor bolt structure. During use, when the harmful gas generated by the heating of asphalt accumulates in the storage tank and reaches a certain pressure, the gas overcomes the elastic force of the spring and pushes the valve seat upward in the valve cavity. At this time, the spring is compressed and deformed. During the upward movement of the valve seat, the valve seat drives the valve cap to move upward through the valve stem and disengage from the top opening of the valve cavity. Then the gas is discharged into the filter assembly, filtered and adsorbed, and then discharged to the outside. During this process, the storage tank is depressurized, ensuring the pressure inside the storage tank is stable.

[0016] When the filter assembly is working, the gas enters the filter cartridge and passes through the hollow carbon cylinder. During the process of passing through the hollow carbon cylinder, the harmful substances in the gas are filtered and adsorbed. The treated gas then flows through the interior of the hollow carbon cylinder and is finally discharged through the exhaust port.

[0017] Furthermore, operators can change the valve pressure of the safety valve through the control component according to the usage. Before the safety valve is installed in the storage tank, the operator controls the control component to work. The operator manually rotates the rotating cap, which drives the valve stem to rotate. Through the thread engagement between the screw block and the screw groove, the valve seat is controlled to move up and down in the valve cavity under the principle of the lead screw. When the valve seat rises, the valve pressure of the safety valve increases, and vice versa.

[0018] This invention automatically relieves and stabilizes the pressure inside the tank, while filtering the discharged gas to reduce pollution. It also allows for adjustment of the valve pressure, i.e., the opening pressure of the safety valve, making it suitable for different working conditions and improving the flexibility of use. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a cross-sectional view of the safety valve of this utility model;

[0021] Figure 3 This is a schematic diagram of the filter assembly structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the control component structure of this utility model.

[0023] Figure label:

[0024] 1. Flange; 2. Mounting hole; 3. Filter assembly; 301. Filter cartridge; 302. Threaded head; 303. Hollow carbon cartridge; 304. Exhaust nozzle; 305. Cap; 4. Valve body; 401. Valve cap; 402. Valve cavity; 403. Spring; 404. Valve seat; 405. Valve stem; 406. Valve hole; 5. Threaded seat; 6. Rotary cap; 7. Threaded block; 8. Threaded groove. Detailed Implementation

[0025] 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.

[0026] Example 1

[0027] like Figures 1-4 As shown, the present invention proposes a safety valve for an asphalt oil storage tank, including a filter assembly 3 and a valve body 4. The outer wall of the valve body 4 is provided with a flange 1, and mounting holes 2 are equally spaced on the flange 1. The safety valve can be installed on the exhaust port of the asphalt oil storage tank through the cooperation of the flange 1 and the anchor bolt structure.

[0028] The valve body 4 has a valve cavity 402 inside, and a valve seat 404 is slidably mounted inside the valve cavity 402. A valve stem 405 is mounted on the valve seat 404, and a spring 403 is movably sleeved on the valve stem 405. The spring 403 rests between the upper surface of the valve seat 404 and the inner wall of the valve cavity 402. A valve cap 401 is rotatably mounted on the top of the valve stem 405, and the valve cap 401 rests against the top opening of the valve cavity 402. Valve holes 406 are equidistantly opened on the valve seat 404. The above structure constitutes a safety valve. The original length of the spring 403 is... The height is greater than the height of the valve cavity 402. During use, when the harmful gas generated by the heating of asphalt is trapped in the storage tank and reaches a certain pressure, the gas overcomes the elastic force of the spring 403 and pushes the valve seat 404 upward in the valve cavity 402. At this time, the spring 403 is compressed and deformed. During the upward movement of the valve seat 404, the valve seat 404 drives the valve cap 401 to move upward through the valve stem 405 and disengage from the top opening of the valve cavity 402. Then the gas is discharged into the filter assembly 3, filtered and adsorbed, and then discharged to the outside.

[0029] The valve body 4 has a filter assembly 3 at the top exhaust port, a threaded head 302 at the air inlet of the filter cartridge 301, and a threaded seat 5 at the exhaust port of the valve body 4. The threaded head 302 is threaded into the outer wall of the threaded seat 5. The threaded engagement design facilitates the disassembly and assembly of the filter assembly 3.

[0030] The filter assembly 3 is used to filter and adsorb harmful substances in the exhaust gas. The filter assembly 3 consists of a filter cartridge 301, a hollow carbon cartridge 303, an exhaust nozzle 304, and a cap 305. The filter cartridge 301 is connected to the exhaust port at the top of the valve body 4, and the hollow carbon cartridge 303 is inserted into the central axis inside the filter cartridge 301.

[0031] The screw cap 305 is threaded on the outer wall of the filter cartridge 301 and squeezes and positions the hollow carbon cartridge 303. The exhaust nozzle 304 is opened in the center of the screw cap 305 and is connected to the hollow part of the hollow carbon cartridge 303. When the filter assembly 3 is working, the gas enters the interior of the filter cartridge 301 and passes through the hollow carbon cartridge 303. During the process of passing through the hollow carbon cartridge 303, the harmful substances in the gas are filtered and adsorbed. The treated gas is then discharged through the exhaust nozzle 304 along the interior of the hollow carbon cartridge 303.

[0032] Example 2

[0033] like Figures 1-4 As shown, the safety valve for an asphalt oil storage tank proposed in this utility model, compared with Embodiment 1, further includes: a regulating component on the valve body 4, which is used to adjust the valve pressure of the safety valve. The regulating component consists of a rotating cap 6, a threaded block 7, and a threaded groove 8. The threaded block 7 is located at the bottom end of the valve stem 405, and the threaded groove 8 is opened in the valve seat 404. The threaded block 7 and the threaded groove 8 are threadedly engaged. The rotating cap 6 is located at the top end of the valve stem 405, and the outer wall of the rotating cap 6 is provided with paddles at equal intervals. Furthermore, the operator can change the valve pressure of the safety valve through the regulating component according to the usage situation. Before the safety valve is installed in the storage tank, the operator controls the operation of the regulating component. The operator manually rotates the rotating cap 6, which drives the valve stem 405 to rotate. Through the threaded engagement action between the threaded block 7 and the threaded groove 8, under the principle of the lead screw, the valve seat 404 is controlled to move up and down in the valve cavity 402. When the valve seat 404 rises, the valve pressure of the safety valve increases, and vice versa.

[0034] The above specific embodiments are merely several preferred embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

[0035] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A safety valve for an asphalt oil storage tank, comprising a filter assembly (3) and a valve body (4), characterized in that: The valve body (4) has a filter assembly (3) at the top exhaust port. The filter assembly (3) is used to filter and adsorb harmful substances in the exhaust gas. The valve body (4) has a valve cavity (402) inside, and a valve seat (404) is slidably provided in the valve cavity (402). A valve stem (405) is provided on the valve seat (404), and a spring (403) is movably sleeved on the valve stem (405). The spring (403) abuts between the upper surface of the valve seat (404) and the inner wall of the valve cavity (402). A valve cap (401) is rotatably provided at the top of the valve stem (405). The valve cap (401) abuts at the top opening of the valve cavity (402). Valve holes (406) are equidistantly provided on the valve seat (404). The original length of the spring (403) is greater than the height of the valve cavity (402). The valve body (4) is provided with a control component, which is used to adjust the valve pressure of the safety valve.

2. The safety valve for an asphalt oil storage tank according to claim 1, characterized in that: The filter assembly (3) consists of a filter cartridge (301), a hollow carbon cartridge (303), an exhaust nozzle (304), and a screw cap (305). The filter cartridge (301) is connected to the exhaust port at the top of the valve body (4), and the hollow carbon cartridge (303) is inserted into the central axis inside the filter cartridge (301).

3. A safety valve for an asphalt oil storage tank according to claim 2, characterized in that: The screw cap (305) is threaded on the outer wall of the filter cartridge (301) and squeezes and positions the hollow carbon cartridge (303). The exhaust nozzle (304) is located at the center of the screw cap (305) and is connected to the hollow part of the hollow carbon cartridge (303).

4. A safety valve for an asphalt oil storage tank according to claim 2, characterized in that: The filter cartridge (301) has a threaded head (302) at its air inlet and a threaded seat (5) at its exhaust outlet. The threaded head (302) is threaded into the outer wall of the threaded seat (5).

5. A safety valve for an asphalt oil storage tank according to claim 1, characterized in that: The control component consists of a rotating cap (6), a threaded block (7) and a threaded groove (8). The threaded block (7) is located at the bottom end of the valve stem (405), and the threaded groove (8) is opened in the valve seat (404). The threaded block (7) and the threaded groove (8) are threadedly engaged.

6. A safety valve for an asphalt oil storage tank according to claim 5, characterized in that: The rotating cap (6) is located at the top of the valve stem (405), and the outer wall of the rotating cap (6) is provided with paddles at equal intervals.

7. A safety valve for an asphalt oil storage tank according to claim 1, characterized in that: The outer wall of the valve body (4) is provided with a flange (1), and mounting holes (2) are provided at equal intervals on the flange (1).

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