Ultrahigh-pressure leakage-proof gate valve

Abstract

The ultrahigh-pressure leakage-proof gate valve comprises a valve body, flanges are fixedly connected to the annular surfaces of the left end and the right end of the valve body, a gate structure is fixedly connected to the upper surface of the valve body, a fixing frame is fixedly connected to the inner side surfaces of the flanges, and a pressurization structure is fixedly connected to the right side surface of the fixing frame. By means of the structure, the movable gate body, the screw and the lower gate body can improve the safety sealing performance of the gate valve, and leakage can be prevented. The magnet, the magnetic disc and the fan blades can control the pressure intensity and pressure in the gate valve in the using process.

Description

Technical Field

[0001] This invention relates to the field of valve technology, specifically to an ultra-high pressure gate valve. Background Technology

[0002] Gate valves are currently used in the natural gas extraction process for fracturing and oil (gas) extraction operations. They are typically used for ultra-high pressure applications such as 15,000 psi (105 MPa), 20,000 psi (140 MPa), 25,000 psi (175 MPa), and 30,000 psi (210 MPa), as well as large diameter applications such as 5-1 / 8″ (φ130 mm) and 7-1 / 16″ (φ180 mm). They can also be used in other low-pressure, small-diameter pipelines and equipment.

[0003] During the application process, the applicant discovered, through a search, that a Chinese patent disclosed "A Novel Ultra-High Pressure Gate Valve" with application number "CN202222564284.X". This patent mainly uses a fixed gate structure, but when the ultra-high pressure gate valve is in use, the fixed gate structure cannot control the pressure inside the gate valve. Summary of the Invention

[0004] To address the problems of existing technologies, this invention provides an ultra-high pressure leak-proof gate valve, comprising a valve body, flanges fixedly connected to the annular surfaces at both ends of the valve body, a gate structure fixedly connected to the upper surface of the valve body, a fixing frame fixedly connected to the inner surface of the flanges, and a pressure boosting structure fixedly connected to the right side surface of the fixing frame. The gate structure includes a fixed guard plate, a screw, a turntable, a movable gate, and a lower gate. The lower surface of the fixed guard plate is fixedly connected to the upper surface of the valve body. The pressure boosting structure includes a waterproof motor, a transmission rod, a transmission shaft, a fan blade, a short rod, a magnet, a disk, a protective cover, and a fixing ring. The left side surface of the waterproof motor is fixedly connected to the right side surface of the left-end fixing frame.

[0005] Preferably, the annular surface of the screw is threadedly connected to the inner surface of the fixed guard plate, the inner surface of the turntable is fixedly connected to the annular surface at the upper end of the screw, the inner surface of the movable gate is movably connected to the annular surface at the lower end of the screw, and the annular surface of the lower gate is fixedly connected to the inner surface of the valve body.

[0006] Preferably, the left side surface of the transmission rod is fixedly connected to the output end of the waterproof motor, and the annular surface of the right end of the transmission rod is rotatably connected to the inner surface of the right end fixing bracket.

[0007] Preferably, the annular surface of the retaining ring is fixedly connected to the inner surface of the valve body, the right side surface of the cover is fixedly connected to the left side surface of the retaining ring, and the annular surface of the disk is fixedly connected to the inner surface of the cover.

[0008] Preferably, the inner surface of the drive shaft is fixedly connected to the annular surface of the drive rod, the inner surface of the fan blade is fixedly connected to the annular surface of the drive shaft, the inner surface of the short rod is fixedly connected to the annular surface of the drive shaft near the left end, and the lower surface of the magnet is fixedly connected to the upper surface of the other end of the short rod.

[0009] The beneficial effects of this invention are as follows: The safety and sealing performance of the gate valve can be increased and leakage can be prevented by moving the gate, screw, and lower gate. The internal pressure of the gate valve can be controlled during use by using magnets, disks, and fan blades.

[0010] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0011] The present invention will be further described below with reference to the accompanying drawings and embodiments; Figure 1 This is a front view of an ultra-high pressure leak-proof gate valve according to the present invention; Figure 2 This is a schematic diagram of the full structure of an ultra-high pressure anti-leakage gate valve according to the present invention; Figure 3 This is a schematic diagram of the gate structure of an ultra-high pressure anti-leakage gate valve according to the present invention; Figure 4 This is a schematic diagram of the pressure boosting structure of an ultra-high pressure anti-leakage gate valve according to the present invention.

[0012] Legend: 1. Valve body; 2. Flange; 3. Gate structure; 4. Fixing frame; 5. Pressure boosting structure; 301. Fixing guard plate; 302. Screw; 303. Turntable; 304. Moving gate; 305. Lower gate; 501. Waterproof motor; 502. Transmission rod; 503. Transmission shaft; 504. Fan blade; 505. Short rod; 506. Magnet; 507. Disk; 508. Protective cover; 509. Fixing ring. Detailed Implementation

[0013] This section will describe in detail specific embodiments of the present invention. Preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but they should not be construed as limiting the scope of protection of the present invention.

[0014] Reference Figures 1 to 4This invention provides an ultra-high pressure leak-proof gate valve, which includes a valve body 1. Flanges 2 are fixedly connected to the annular surfaces at both ends of the valve body 1. A gate structure 3 is fixedly connected to the upper surface of the valve body 1. A fixing frame 4 is fixedly connected to the inner surface of the flange 2. A pressure boosting structure 5 is fixedly connected to the right side surface of the fixing frame 4. The flanges 2 are provided so that the valve body 1 can be connected to other pipelines.

[0015] The lower surface of the fixed guard plate 301 is fixedly connected to the upper surface of the valve body 1. The annular surface of the screw 302 is threadedly connected to the inner surface of the fixed guard plate 301. The inner surface of the turntable 303 is fixedly connected to the annular surface at the upper end of the screw 302. The inner surface of the movable gate 304 is movably connected to the annular surface at the lower end of the screw 302. The annular surface of the lower gate 305 is fixedly connected to the inner surface of the valve body 1. When the valve body 1 is in a sealed state, the lower surface of the movable gate 304 is in direct contact with the upper surface of the lower gate 305. However, the upper end of the movable gate 304 is higher than the lower end of the fixed guard plate 301 to prevent fluid or gas from passing through the upper end of the movable gate 304 during sealing.

[0016] The left side surface of the waterproof motor 501 is fixedly connected to the right side surface of the left end fixing bracket 4. The left side surface of the transmission rod 502 is fixedly connected to the output end of the waterproof motor 501. The annular surface of the right end of the transmission rod 502 is rotatably connected to the inner surface of the right end fixing bracket 4. The annular surface of the fixing ring 509 is fixedly connected to the inner surface of the valve body 1. The right side surface of the cover 508 is fixedly connected to the left side surface of the fixing ring 509. The annular surface of the disk 507 is fixedly connected to the inner surface of the cover 508. The inner surface of the drive shaft 503 is fixedly connected to the annular surface of the drive rod 502. The inner surface of the fan blade 504 is fixedly connected to the annular surface of the drive shaft 503. The inner surface of the short rod 505 is fixedly connected to the annular surface of the drive shaft 503 near the left end. The lower surface of the magnet 506 is fixedly connected to the upper surface of the other end of the short rod 505. The magnet 506 and the short rod 505 rotate within the space where the cover 508 and the fixing ring 509 are connected, but do not directly contact the disk 507.

[0017] Working principle: Before use, connect the flanges 2 installed at both ends of the valve body 1 to other pipelines. Upon initial use, rotate the turntable 303. The rotation of the turntable 303 will drive the screw 302 upwards, which in turn will pull the movable gate 304 upwards until the movable gate 304 reaches the interior of the fixed guard plate 301. Once gas or fluid enters the gate valve, it can be pressurized according to the flow rate. The waterproof motor 501, fixed to the right side of the left flange 2, provides power to the transmission rod 502, which in turn drives the transmission shaft 503. The rotation of the transmission shaft 503 will pull the valve upwards. The multiple sets of fan blades 504 and short rods 505 rotate. As the short rods 505 and magnets 506 rotate, magnets 506 will have a damping reaction with disks 507 fixed on the inner surface of the cover 508. When the drive shaft 503 rotates at high speed, the damping reaction between magnets 506 and disks 507 will increase the pressure inside the gate valve while the fan blades 504 rotate. After use, the turntable 303 rotates in another direction, driving the screw 302 to rotate downward until the lower surface of the moving gate 304 abuts against the upper surface of the lower gate 305, thus completing the sealing and leakage prevention.

[0018] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. An ultra-high pressure leak-tight gate valve comprising a valve body (1), characterized in that, The annular surface of left and right ends of the valve body (1) is fixedly connected with flange (2), the upper surface of the valve body (1) is fixedly connected with gate structure (3), the inner surface of the flange (2) is fixedly connected with fixed frame (4), the right surface of the fixed frame (4) is fixedly connected with booster structure (5), the gate structure (3) includes fixed guard (301), screw rod (302), rotating disc (303), movable gate (304), lower gate (305), the lower surface of the fixed guard (301) is fixedly connected with the upper surface of the valve body (1), the booster structure (5) includes waterproof motor (501), transmission rod (502), transmission shaft (503), fan blade (504), short rod (505), magnet (506), magnetic disk (507), cover (508), fixed ring (509), the left surface of the waterproof motor (501) is fixedly connected with the right surface of the left fixed frame (4).

2. A super-high pressure leak-free gate valve according to claim 1, characterized in that, The annular surface of the screw rod (302) is screw connected with the inner surface of the fixed guard (301), the inner surface of the rotating disc (303) is fixedly connected with the annular surface of the upper end of the screw rod (302), the inner surface of the movable gate (304) is movably connected with the annular surface of the lower end of the screw rod (302), the annular surface of the lower gate (305) is fixedly connected with the inner surface of the valve body (1).

3. A super-high pressure leak-free gate valve according to claim 1, characterized in that, The left surface of the transmission rod (502) is fixedly connected with the output end of the waterproof motor (501), the annular surface of the right end of the transmission rod (502) is rotatably connected with the inner surface of the right fixed frame (4).

4. A super-high pressure leak-free gate valve according to claim 1, characterized in that, The annular surface of the fixed ring (509) is fixedly connected with the inner surface of the valve body (1), the right surface of the cover (508) is fixedly connected with the left surface of the fixed ring (509), the annular surface of the magnetic disk (507) is fixedly connected with the inner surface of the cover (508).

5. A super-high pressure leak-free gate valve according to claim 1, characterized in that, The inner surface of the transmission shaft (503) is fixedly connected with the annular surface of the transmission rod (502), the inner surface of the fan blade (504) is fixedly connected with the annular surface of the transmission shaft (503), the inner surface of the short rod (505) is fixedly connected with the annular surface of the left end of the transmission shaft (503), the lower surface of the magnet (506) is fixedly connected with the upper surface of the other end of the short rod (505).

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