Oil gas recovery breather valve

Abstract

The utility model relates to the technical field of parts for oil and gas, and discloses an oil and gas recovery breather valve which comprises a connecting pipe, a fixing frame, a dustproof net and a cleaning mechanism, the fixing frame is fixedly arranged on the connecting pipe, the dustproof net is arranged in the fixing frame, and the cleaning mechanism is arranged on the outer side of the fixing frame. The cleaning mechanism comprises a sliding rail arranged on the outer side of the fixing frame, a sliding block is connected into the sliding rail in a sliding mode, a connecting plate and a scraping piece fixedly arranged on the outer wall of the connecting plate are welded to the sliding block, and the scraping piece is attached to the surface of the dustproof net. By arranging the cleaning mechanism, when gas in the tank body is exhausted through the dustproof net, the scraping pieces on the connecting plates can rotate and move on the sliding rails through the sliding blocks, so that impurities attached to the surface of the dustproof net are cleaned, and the phenomenon that the dustproof net is blocked is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of oil and gas parts, and specifically to an oil and gas recovery breathing valve. Background Art

[0002] An oil and gas recovery breather valve is a valve device used on storage tanks in the petroleum, chemical, and other industries. It serves two main functions: first, maintaining the air pressure balance of the storage tank, and second, reducing the volatilization of the medium. Specifically, when the pressure of the medium in the tank is within the control operating pressure range of the breather valve, the breather valve does not operate, maintaining the airtightness of the oil tank. When the medium is added to the tank, the pressure in the upper gas space inside the tank increases. When the pressure reaches the positive operating pressure of the breather valve, the pressure valve is pushed open, and gas escapes from the breather valve exhalation port, preventing the pressure in the tank from continuing to increase. When the atmospheric pressure outside the tank causes the pressure in the upper gas space inside the tank to drop, reaching the negative operating pressure of the breather valve, the atmosphere outside the tank will push open the negative pressure valve disc of the breather valve, allowing outside gas to enter the tank, preventing the pressure in the tank from continuing to drop, thereby maintaining the air pressure balance between the inside and outside of the tank and protecting the safety of the storage tank.

[0003] During the oil and gas recovery process, sediment and dirt will form in the pipeline. These substances will gradually accumulate on the dustproof net, causing the dustproof net to be blocked, resulting in the gas in the storage tank not being discharged smoothly. Utility Model Content

[0004] The purpose of this application is to provide an oil and gas recovery breathing valve to solve the problem raised in the above background technology that during the oil and gas recovery process, sediments and dirt will be formed in the pipeline, and these substances will gradually accumulate on the dustproof net, causing the dustproof net to be blocked, resulting in the gas in the storage tank not being discharged smoothly.

[0005] To achieve the above-mentioned objectives, the present application provides the following technical solutions: an oil and gas recovery breathing valve, comprising: a connecting pipe, a fixed frame, a dustproof net and a cleaning mechanism, the fixed frame is fixed on the connecting pipe, the dustproof net is arranged inside the fixed frame, and the cleaning mechanism is arranged on the outside of the fixed frame. The cleaning mechanism includes a slide rail arranged on the outside of the fixed frame, and the interior of the slide rail is slidably connected to a slider, and a connecting plate and a scraper fixed on the outer wall of the connecting plate are welded on the slider, and the scraper is attached to the surface of the dustproof net.

[0006] By adopting the above technical solution, cleaning work can be carried out by rotating.

[0007] Preferably, the cleaning mechanism further comprises a rack plate welded on the outer wall of the slide rail, and the rack plate is in a ring shape.

[0008] By adopting the above technical solution, a positioning effect can be achieved for the structure fitted on one side.

[0009] Preferably, the cleaning mechanism further comprises a driving motor fixedly provided below the slider and a connecting shaft provided on the output end of the driving motor.

[0010] By adopting the above technical solution, the structure connected on the shaft can be provided with stable and continuous rotation.

[0011] Preferably, the cleaning mechanism further comprises a gear fixedly engaged on the connecting shaft, and the gear is meshed with the rack plate.

[0012] By adopting the above technical solution, continuous displacement work can be performed during the rotation process.

[0013] Preferably, the oil and gas recovery breathing valve further includes a baffle welded above the fixed frame, and a sleeve is integrally formed at the center of the bottom of the baffle.

[0014] By adopting the above technical solution, rainwater can be shielded, thereby preventing the entry of rainwater.

[0015] Preferably, the oil and gas recovery breathing valve further includes a sealing block vertically slidably connected inside the sleeve of the baffle and a spring attached to one side of the outer wall of the baffle and the sealing block.

[0016] By adopting the above technical solution, the lower connecting pipe can be sealed by extrusion.

[0017] Preferably, the oil and gas recovery breathing valve further includes a protective frame welded on the outer wall of the fixed frame, a hole is opened in the inner bottom of the fixed frame, and the slide rail is welded to the outer wall of the protective frame.

[0018] By adopting the above technical solution, external impurities can be directly exposed to the dustproof net to a certain extent.

[0019] To sum up, the present application includes the following beneficial effects: by providing a cleaning mechanism, when the gas in the tank body is discharged through the dustproof net, the scraper on the connecting plate can be rotated and displaced on the slide rail through the slider, thereby cleaning the impurities attached to the surface of the dustproof net, thereby avoiding clogging of the dustproof net. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the three-dimensional structure of this application;

[0021] Figure 2 A schematic diagram of the cross-sectional three-dimensional structure of this application;

[0022] Figure 3 A schematic diagram of the three-dimensional structure of the cleaning mechanism of this application;

[0023] Figure 4 This is a schematic diagram of the three-dimensional cross-section of the cleaning mechanism of this application.

[0024] In the figure: 1. Connecting pipe; 2. Fixed frame; 3. Dustproof net; 4. Baffle; 5. Sealing block; 6. Spring; 7. Protective frame; 8. Cleaning mechanism; 801. Slide rail; 802. Slider; 803. Rack plate; 804. Drive motor; 805. Connecting shaft; 806. Gear; 807. Connecting plate; 808. Scraper. DETAILED DESCRIPTION

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

[0026] The following is combined with Figure 1-4 The embodiments of the present application are described in further detail.

[0027] Example 1

[0028] See also Figure 1-Figure 4 , this embodiment provides a technical solution: an oil and gas recovery breathing valve, comprising: a connecting pipe 1, a fixing frame 2, a dustproof net 3, a baffle 4, a sealing block 5, a spring 6 and a protective frame 7;

[0029] The connecting pipe 1 can be connected to the tank body to discharge the gas in the tank body. The fixed frame 2 is fixed on the connecting pipe 1. The fixed frame 2 can effectively fix the internal structure and can connect the structures with each other. The dustproof net 3 is welded inside the fixed frame 2. The dustproof net 3 can provide gas discharge in the tank body and can isolate impurities in the air from entering the interior of the tank body. The baffle 4 welded above the fixed frame 2 can prevent rainwater from above from entering the interior of the fixed frame 2, and a sleeve is integrally formed at the center of the bottom of the baffle 4, which can provide the internal structure with stable vertical movement.

[0030] The sealing block 5 is vertically slidably connected to the sleeve of the baffle 4. When the gas in the tank is transported through the connecting pipe 1, the sealing block 5 can be pushed to move vertically, and the gas can be discharged at this time. The two ends of the spring 6 are respectively attached to the outer walls of the baffle 4 and the sealing block 5. When the gas no longer pushes the sealing block 5, the spring 6 will squeeze and push the sealing block 5 to seal the connecting pipe 1. The protective frame 7 is welded to the outer wall of the fixed frame 2, which can reduce the direct contact of impurities in the air with the dustproof net 3. The inner bottom of the fixed frame 2 is provided with holes to facilitate the discharge of impurities from the opened holes. The cleaning mechanism 8 is arranged on the outside of the protective frame 7. The cleaning mechanism 8 includes a slide rail 801 welded to the outer wall of the protective frame 7, which can provide the internal structure with stable horizontal circular rotation, and a slider 802 slidably connected to the inside of the slide rail 801. The slider 802 can be stably displaced inside the slide rail 801, and can drive the structure connected on the outside to move synchronously.

[0031] The connecting plate 807 welded on the slider 802 can serve as an effective connection between the structures, so that the slider 802 can move and perform synchronous displacement. The scraper 808 is fixed on the outer wall of the connecting plate 807, and the scraper 808 is attached to the surface of the dustproof net 3. During the displacement process, the scraper 808 can scrape and clean the impurities on the surface of the dustproof net 3.

[0032] When the tank needs to be exhausted, the gas is transported to the inside of the connecting pipe 1. At this time, the gas in the connecting pipe 1 will squeeze and push the sealing block 5. At this time, the sealing block 5 is no longer squeezed by the spring 6 under the baffle 4, thereby driving the sealing block 5 to move vertically upward. At this time, the gas will be discharged through the dustproof net 3 in the fixed frame 2. During the discharge process, the protection of the protective frame 7 can effectively prevent impurities in the air from directly contacting the dustproof net 3. When the dustproof net 3 is blocked, the slider 802 is rotated and displaced inside the slide rail 801. At this time, the slider 802 drives the scraper 808 on the outside of the connecting plate 807 to clean the surface of the dustproof net 3 during the displacement process.

[0033] Example 2

[0034] See also Figure 1-Figure 4 , this embodiment provides a technical solution: an oil and gas recovery breathing valve, including: a rack plate 803, a drive motor 804, a connecting shaft 805 and a gear 806;

[0035] The rack plate 803 welded on the outer wall of the slide rail 801 can provide a structure that is meshed on one side for stable rotation and displacement. The drive motor 804 is bolted to the bottom of the slider 802, and the drive motor 804 can provide a structure connected on the output end for stable rotation. The connecting shaft 805 provided on the output end of the drive motor 804 can drive the structure on the shaft to rotate stably during the rotation. The gear 806 is engaged with the connecting shaft 805, and the gear 806 is meshed with the rack plate 803. During the rotation, the gear 806 can drive the slider 802 to stably displace inside the slide rail 801 by meshing with the rack plate 803.

[0036] By starting the driving motor 804 on the slider 802, the driving motor 804 drives the connecting shaft 805 on the output end to rotate. During the rotation of the connecting shaft 805, the gear 806 is driven to rotate. At this time, during the rotation, the gear 806 engages with the rack plate 803, thereby stably driving the slider 802 in the slide rail 801 to rotate, thereby continuously performing displacement work.

[0037] The implementation principle of an oil and gas recovery breathing valve of this application is:

[0038] First, when the tank needs to be vented, the gas is transported to the inside of the connecting pipe 1. At this time, the gas in the connecting pipe 1 will squeeze and push the sealing block 5. At this time, the sealing block 5 is no longer squeezed by the spring 6 under the baffle 4, thereby driving the sealing block 5 to move vertically upward. At this time, the gas will be discharged through the dustproof net 3 in the fixed frame 2. During the discharge process, the protection of the protective frame 7 can effectively prevent impurities in the air from directly contacting the dustproof net 3.

[0039] Secondly, when the dust screen 3 is clogged, the driving motor 804 on the slider 802 is started, and the driving motor 804 drives the connecting shaft 805 on the output end to rotate. During the rotation of the connecting shaft 805, the gear 806 is driven to rotate. At this time, the gear 806 is engaged with the rack plate 803 during the rotation, thereby stably driving the slider 802 in the slide rail 801 to rotate, thereby continuously performing the displacement work.

[0040] Finally, the slider 802 rotates and moves inside the slide rail 801 . During the movement, the slider 802 drives the scraper 808 on the outside of the connecting plate 807 to clean the surface of the dustproof net 3 .

[0041] It will be apparent to those skilled in the art that the present application is not limited to the details of the exemplary embodiments described above, and that the present application can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present application is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. An oil and gas recovery breathing valve, characterized in that: include: connecting pipe; A fixed frame, the fixed frame being fixed on the connecting pipe; A dustproof net, which is arranged inside the fixed frame; A cleaning mechanism is arranged on the outside of the fixed frame. The cleaning mechanism includes a slide rail arranged on the outside of the fixed frame. A slider is slidably connected to the inside of the slide rail. A connecting plate and a scraper fixed on the outer wall of the connecting plate are welded on the slider, and the scraper is attached to the surface of the dustproof net.

2. The oil and gas recovery breathing valve according to claim 1, characterized in that: The cleaning mechanism further comprises a rack plate welded on the outer wall of the slide rail, and the rack plate is in a ring shape.

3. The oil and gas recovery breathing valve according to claim 2, characterized in that: The cleaning mechanism further comprises a driving motor fixedly provided below the slider and a connecting shaft provided on the output end of the driving motor.

4. The oil and gas recovery breathing valve according to claim 3, characterized in that: The cleaning mechanism further comprises a gear fixedly engaged on the connecting shaft, and the gear is meshed with the rack plate.

5. The oil and gas recovery breathing valve according to claim 1, characterized in that: The oil and gas recovery breathing valve further includes a baffle welded above the fixed frame, and a sleeve is integrally formed at the center of the bottom of the baffle.

6. The oil and gas recovery breathing valve according to claim 5, characterized in that: The oil and gas recovery breathing valve also includes a sealing block vertically slidably connected inside the sleeve of the baffle, and a spring attached to one side of the outer wall of the baffle and the sealing block.

7. The oil and gas recovery breathing valve according to claim 6, characterized in that: The oil and gas recovery breathing valve also includes a protective frame welded on the outer wall of the fixed frame, a hole is opened on the inner bottom of the fixed frame, and the slide rail is welded on the outer wall of the protective frame.

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