Deflation valve for oil exploration drilling equipment

Abstract

The utility model belongs to the technical field of vent valves for oil exploration drilling equipment, and particularly relates to a vent valve for oil exploration drilling equipment, which comprises a valve body, a hollow cylindrical shell is fixedly arranged in the valve body, a water inlet is arranged on the hollow cylindrical shell, a floating ball is arranged in the hollow cylindrical shell, and a connecting rod is arranged at the top of the floating ball. A conical sealing block is arranged at the top of the connecting rod, a first circular ring is arranged at the bottom of the conical sealing block, a plurality of circular sealing plates are arranged at the top of the first circular ring, a first connecting disc is arranged on the valve body and connected with a second connecting disc through bolts, an exhaust shell is arranged on the second connecting disc, and a second circular ring is fixedly arranged in the exhaust shell. And a conical shell matched with the conical sealing block is arranged at the top of the second circular ring. According to the device, noise can be reduced, meanwhile, after a sealing part is abraded, the sealing part has high sealing performance, and the service life of the sealing part is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of air release valves for oil exploration and drilling equipment, and particularly relates to an air release valve for oil exploration and drilling equipment. Background Art

[0002] During the oil exploration and drilling process, effectively treating and discharging the gas produced by oil is an important step in ensuring the safety and efficiency of drilling operations. With the continuous development of oil exploration technology, the performance requirements for drilling equipment are also increasing.

[0003] The bleed valves used in traditional oil exploration and drilling equipment often suffer from a number of issues. First, they lack sealing performance. Due to long-term use and frequent opening and closing operations, sealing components are susceptible to wear, leading to gas leaks. This not only affects the normal operation of the drilling equipment but also poses potential safety hazards such as fire and explosion.

[0004] Secondly, the control of gas emissions is not precise enough. During the gas emission process, due to the lack of effective flow guidance and flow rate control, the gas discharge speed is unstable, which easily generates loud noise. This not only causes serious noise pollution to the work environment at the operation site and affects the physical and mental health of workers, but also may cause operators to misjudge the operating status of the equipment due to noise interference.

[0005] To this end, we have proposed a bleed valve for oil exploration and drilling equipment, which can not only reduce noise, but also provide high sealing performance after the sealing parts are worn, thereby increasing their service life. Utility Model Content

[0006] The purpose of this utility model is to provide an air bleed valve for oil exploration and drilling equipment, which can not only reduce noise, but also make the sealing parts have high sealing performance after wear and tear, thereby increasing their service life.

[0007] The technical solutions adopted in this application are as follows:

[0008] A bleed valve for oil exploration and drilling equipment comprises a valve body, a hollow cylindrical shell fixedly disposed within the valve body, a water inlet disposed on the hollow cylindrical shell, a float disposed within the hollow cylindrical shell, a connecting rod disposed on top of the float, a conical sealing block disposed on top of the connecting rod, a first circular ring disposed at the bottom of the conical sealing block, and a plurality of circular sealing plates disposed on top of the first circular ring;

[0009] The valve body is provided with a first connecting plate, which is connected to the second connecting plate by bolts, and the second connecting plate is provided with an exhaust housing, and a second ring is fixedly provided inside the exhaust housing, and a conical housing matching the conical sealing block is provided on the top of the second ring, and an exhaust port is provided on the conical housing, and a circular groove matching the circular sealing plate is provided at the bottom of the second ring;

[0010] A plurality of guide plates arranged in an interlaced manner are arranged inside the exhaust housing, and the distance between each two guide plates increases successively.

[0011] Furthermore, a slide groove is provided inside the hollow cylindrical shell, a slider is provided inside the slide groove, and one side of the slider is connected to the float.

[0012] Furthermore, the heights of the plurality of circular sealing plates increase sequentially from left to right.

[0013] Furthermore, the diameter of the conical sealing block is smaller than the diameter of the hollow cylindrical shell.

[0014] Furthermore, the diameter of the first ring matches the diameter of the hollow cylindrical shell cavity.

[0015] Furthermore, a sealing rod matching the exhaust port is provided on the top of the conical sealing block.

[0016] The technical effects achieved by this utility model are:

[0017] First, the valve body is connected to the external pipeline. The oil and gas flowing inside the pipeline enter the valve body. Then the generated gas enters the first connecting plate, the second connecting plate, the first ring, the second ring and the conical shell in sequence, and then is discharged through the exhaust port. The gas discharged from the exhaust port passes through the guide plate and then is discharged from the exhaust shell. Because the distance between the guide plates increases successively, the speed of the gas will become slower and slower when it flows, thereby reducing the noise generated by the gas discharge. When the oil level inside the valve body rises, the oil will flow into the hollow cylindrical shell through the water inlet, and then the adhesion will cause The float rises (through the hollow cylindrical shell wire, it will not deviate when rising). When rising, the float drives the connecting rod to move the conical sealing block. The conical sealing block passes through the first ring, the first connecting disk, the second connecting rod and the second ring in sequence, and then enters the interior of the conical shell to seal the exhaust port. When sealing, the multiple circular sealing plates on the first ring enter the circular groove on the second ring. In this arrangement, even if the conical sealing block is worn and the sealing performance is reduced, the circular sealing plates enter the circular groove for multiple sealings, so that the sealing performance will not be reduced, thereby improving the sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of the utility model as a whole;

[0019] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the valve body of the utility model when it is sealed;

[0021] Figure 4 It is a structural schematic diagram of the hollow cylindrical shell of the utility model;

[0022] Figure 5 This is an exploded view of the practical conical sealing block;

[0023] Figure 6 It is a structural schematic diagram of the tapered sealing block and the tapered housing during the sealing process of the present invention.

[0024] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0025] 1. Valve body; 2. Hollow cylindrical shell; 3. Water inlet; 4. Float; 5. Connecting rod; 6. Conical sealing block; 7. First ring; 8. First connecting plate; 9. Second connecting plate; 10. Exhaust shell; 11. Second ring; 12. Conical shell; 13. Exhaust port; 14. Circular groove; 15. Guide plate; 16. Slide; 17. Slider; 18. Sealing rod; 19. Circular sealing plate. DETAILED DESCRIPTION

[0026] In order to make the purpose and advantages of this utility more clear, the utility is described in detail below with reference to the embodiments. It should be understood that the following text is only used to describe one or several specific implementation methods of this utility and does not strictly limit the scope of protection specifically requested by this utility.

[0027] like Figure 1-6 As shown, the technical solution adopted by the present invention is as follows: a bleed valve for oil exploration drilling equipment, comprising a valve body 1, a hollow cylindrical shell 2 fixedly provided inside the valve body 1, a water inlet 3 provided on the hollow cylindrical shell 2, a float 4 provided inside the hollow cylindrical shell 2, a connecting rod 5 provided on the top of the float 4, a conical sealing block 6 provided on the top of the connecting rod 5, a first ring 7 provided at the bottom of the conical sealing block 6, and a plurality of circular sealing plates 19 provided on the top of the first ring 7;

[0028] The valve body 1 is provided with a first connecting plate 8, which is connected to the second connecting plate 9 by bolts. The second connecting plate 9 is provided with an exhaust housing 10. A second circular ring 11 is fixedly provided inside the exhaust housing 10. A conical housing 12 that matches the conical sealing block 6 is provided on the top of the second circular ring 11. An exhaust port 13 is provided on the conical housing 12, and a circular groove 14 that matches the circular sealing plate 19 is provided at the bottom of the second circular ring 11.

[0029] A plurality of guide plates 15 arranged in an interlaced manner are provided inside the exhaust housing 10 , and the distance between every two guide plates 15 increases successively.

[0030] Its working principle is as follows: first, the valve body 1 is connected to the external pipeline, and the oil and gas flowing inside the pipeline enter the valve body 1, and then the generated gas enters the first connecting plate 8, the second connecting plate 9, the first ring 7, the second ring 11 and the conical shell 12 in sequence, and then is discharged through the exhaust port 13. The gas discharged from the exhaust port 13 passes through the guide plate 15 and is discharged from the exhaust shell 10. Because the distance between the guide plates 15 increases successively, the speed of the gas will become slower and slower when it flows, thereby reducing the noise generated by the gas discharge. When the oil level in the valve body 1 rises, the oil will flow into the hollow cylindrical shell 2 through the water inlet 3, and then adhere to the guide plate 15. The float 4 rises (the wire passes through the hollow cylindrical shell 2 and will not deviate when rising). When the float 4 rises, it drives the connecting rod 5 to move the conical sealing block 6. The conical sealing block 6 passes through the first ring 7, the first connecting plate 8, the second connecting rod 5 and the second ring 11 in sequence, and then enters the interior of the conical shell 12, thereby sealing the exhaust port 13. When sealing, the multiple circular sealing plates 19 on the first ring 7 enter the circular groove 14 on the second ring 11. In this way, even if the conical sealing block 6 is worn and the sealing performance is reduced, the circular sealing plates 19 enter the circular groove 14 for multiple sealing, so that the sealing performance will not be reduced, thereby improving the sealing performance.

[0031] Among them, a slide groove 16 is opened on the inside of the hollow cylindrical shell 2, and a slider 17 is set inside the slide groove 16. One side of the slider 17 is connected to the float 4. When the float 4 rises, it drives the slider 17 to move inside the slide groove 16, thereby achieving a guiding effect, preventing deviation and making the sealing more accurate.

[0032] Meanwhile, the float 4 and the first connecting rod 5 are made of the same material, which can be plastic or foam.

[0033] The height of the circular sealing plate 19 increases from left to right, and this arrangement can improve the sealing performance.

[0034] The diameter of the conical sealing block 6 is smaller than the diameter of the hollow cylindrical housing 2 . This configuration enables the conical sealing block 6 to move inside the hollow cylindrical housing 2 .

[0035] The diameter of the first ring 7 matches the diameter of the cavity of the hollow cylindrical shell 2, so that the first ring 7 can move inside the hollow cylindrical shell.

[0036] A sealing rod 18 matching the exhaust port 13 is provided on the top of the conical sealing block 6 . The sealing rod 18 can seal the exhaust port 13 to further improve the sealing effect.

[0037] The working principle of the utility model is as follows: first, the valve body 1 is connected to the external pipeline, and the oil and gas flowing in the pipeline enter the valve body 1, and then the generated gas enters the first connecting plate 8, the second connecting plate 9, the first ring 7, the second ring 11 and the conical shell 12 in sequence, and then is discharged through the exhaust port 13. The gas discharged from the exhaust port 13 passes through the guide plate 15 and is discharged from the exhaust shell 10. Because the distance between the guide plates 15 increases successively, the speed of the gas will become slower and slower when it flows, thereby reducing the noise generated by the gas discharge. When the oil level in the valve body 1 rises, the oil will flow into the hollow cylindrical shell 2 through the water inlet 3, and then adhere to the water inlet 3. This causes the float 4 to rise (the wire passes through the hollow cylindrical shell 2 and will not deviate when rising). When rising, the float 4 drives the connecting rod 5 to move the conical sealing block 6. The conical sealing block 6 passes through the first ring 7, the first connecting plate 8, the second connecting rod 5 and the second ring 11 in sequence, and then enters the interior of the conical shell 12, thereby sealing the exhaust port 13. When sealing, the multiple circular sealing plates 19 on the first ring 7 enter the circular groove 14 on the second ring 11. In this arrangement, even if the conical sealing block 6 is worn and the sealing performance is reduced, the circular sealing plates 19 enter the circular groove 14 for multiple sealing, so that the sealing performance will not be reduced, thereby improving the sealing performance.

[0038] The above description is only a preferred embodiment of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications should also be considered within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained in this application shall be implemented in accordance with conventional means in the art unless otherwise specified or limited.

Claims

1. A bleed valve for oil exploration and drilling equipment, comprising a valve body (1), characterized in that: A hollow cylindrical shell (2) is fixedly provided inside the valve body (1), a water inlet (3) is provided on the hollow cylindrical shell (2), and a float (4) is provided inside the hollow cylindrical shell (2), a connecting rod (5) is provided on the top of the float (4), a conical sealing block (6) is provided on the top of the connecting rod (5), a first circular ring (7) is provided at the bottom of the conical sealing block (6), and a plurality of circular sealing plates (19) are provided on the top of the first circular ring (7); The valve body (1) is provided with a first connecting plate (8), the first connecting plate (8) is connected to the second connecting plate (9) by bolts, the second connecting plate (9) is provided with an exhaust housing (10), a second circular ring (11) is fixedly provided inside the exhaust housing (10), a conical housing (12) matching the conical sealing block (6) is provided on the top of the second circular ring (11), an exhaust port (13) is provided on the conical housing (12), and a circular groove (14) matching the circular sealing plate (19) is provided at the bottom of the second circular ring (11); A plurality of mutually staggered guide plates (15) are arranged inside the exhaust housing (10), and the distance between each two guide plates (15) increases successively.

2. The air release valve for oil exploration and drilling equipment according to claim 1, characterized in that: A slide groove (16) is provided inside the hollow cylindrical shell (2), a slider (17) is provided inside the slide groove (16), and one side of the slider (17) is connected to the float (4).

3. The air release valve for oil exploration and drilling equipment according to claim 1, characterized in that: The heights of the plurality of circular sealing plates (19) increase sequentially from left to right.

4. The air release valve for oil exploration and drilling equipment according to claim 1, characterized in that: The diameter of the conical sealing block (6) is smaller than the diameter of the hollow cylindrical housing (2).

5. The air release valve for oil exploration and drilling equipment according to claim 1, characterized in that: The diameter of the first ring (7) matches the diameter of the cavity of the hollow cylindrical shell (2).

6. The air release valve for oil exploration and drilling equipment according to claim 1, characterized in that: A sealing rod (18) matching the exhaust port (13) is provided on the top of the conical sealing block (6).

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