Five-eccentric metal hard sealing butterfly valve

Abstract

The utility model discloses a five eccentric metal hard sealing butterfly valve, including butterfly valve main part, the butterfly valve main part includes and has the feed port with the discharge port, the discharge port is connected with the steady flow pipe through welding, the both ends inner wall of steady flow pipe installs first locating ring and transverse plate respectively, the inner wall of first locating ring is equipped with the transverse plate of equidistance distribution through welding fixed, the inner wall of second locating ring is equipped with the vertical board of equidistance distribution through welding fixed, the top of steady flow pipe is equipped with the gas tank. The utility model discloses through the transverse plate on first locating ring in steady flow pipe and the vertical board on second locating ring cooperation, can guide the water flow direction through the valve piece, avoid the water flow direction disorder, make the water flow keep steady state, effectively prevent the water flow direct impact subsequent pipeline, thereby reduce the pipeline vibration, reduce the noise and the loss of pipeline connecting part of producing because of vibration.

Description

Technical Field

[0001] This utility model relates to the field of valve equipment technology, specifically to a five-eccentric metal hard-seal butterfly valve. Background Technology

[0002] The five-eccentric butterfly valve is a special butterfly valve that achieves high-performance sealing through a five-fold eccentric structure. Its core design breaks through the limitations of traditional butterfly valves in terms of sealing and durability, and it is mainly used in ultra-high pressure, ultra-high temperature, high frequency switching and harsh working conditions.

[0003] When adjusting the flow rate of a five-eccentric butterfly valve, the valve plate obstructs the flow, causing the water flow direction to change and become turbulent. This turbulent flow directly impacts downstream pipelines, leading to significant pipeline vibration, noticeable noise, and accelerated wear at pipeline connections, thus shortening the service life of pipelines and related equipment. Furthermore, under conditions of large water pressure fluctuations, a sudden increase in water pressure passing through the valve body can easily cause severe pipeline vibration, seriously affecting the safe and stable operation of the pipeline system.

[0004] To address the aforementioned issues, we propose a five-eccentric metal hard-seal butterfly valve. Utility Model Content

[0005] The purpose of this invention is to provide a five-eccentric metal hard-seal butterfly valve to address the aforementioned shortcomings in the technology.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a five-eccentric metal hard-seal butterfly valve, comprising a butterfly valve body, wherein the butterfly valve body includes an inlet and an outlet, and the outlet is connected to a flow stabilizing pipe by welding; The inner walls of the two ends of the flow stabilizing pipe are respectively equipped with a first positioning ring and a horizontal plate. The inner wall of the first positioning ring is fixed with horizontal plates that are evenly distributed by welding. The inner wall of the second positioning ring is fixed with vertical plates that are evenly distributed by welding. The top of the flow stabilizing pipe is equipped with an air box. The bottom center of the air box is connected to an air guide pipe through an opening. One bottom end of the air guide pipe is connected to one top end of the flow stabilizing pipe.

[0007] Preferably, the top of the butterfly valve body includes a gearbox, one end of the gearbox includes a wheel, and the inside of the butterfly valve body is provided with a valve plate.

[0008] Preferably, the inner diameter of the flow stabilizing pipe is larger than the inner diameter of the butterfly valve body.

[0009] Preferably, vertically upward support plates are fixedly provided on both outer walls of the flow stabilizing pipe, and the bottom ends of the air box are fixedly connected to the top outer walls of the two support plates.

[0010] Preferably, a first flange is fixedly provided on the outer wall of the feed inlet of the butterfly valve body, and the outer wall of the first flange has first positioning holes distributed at equal intervals. A second flange is fixedly provided on the outer wall of the end of the flow stabilizing pipe away from the butterfly valve body, and the outer wall of the second flange has second positioning holes distributed at equal intervals.

[0011] Preferably, both the horizontal and vertical plates are made of stainless steel, and the thickness of the horizontal and vertical plates is 1mm, with a distance of 10mm between adjacent horizontal and vertical plates.

[0012] The technical effects and advantages provided by this utility model in the above technical solution are as follows: By cooperating with the horizontal plate on the first positioning ring and the vertical plate on the second positioning ring inside the flow stabilizer, the direction of water flow through the valve plate can be guided, avoiding turbulent water flow and keeping the water flow stable. This effectively prevents the water flow from directly impacting subsequent pipes, thereby reducing pipe vibration, noise caused by vibration, and wear on pipe connection parts.

[0013] When the water pressure in the valve body rises instantaneously through the air box at the top of the flow stabilizer, the gas in the air box is connected to the flow stabilizer through the air guide pipe. The compressibility of the gas is used to buffer the pressure, preventing the pipeline from shaking violently due to sudden pressure changes, protecting the pipeline system for safe and stable operation, and extending the service life of the pipeline and related equipment. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the cross-sectional structure of the flow stabilizing tube of this utility model; Figure 3 This is a schematic diagram of the main structure of the butterfly valve of this utility model.

[0016] Explanation of reference numerals in the attached figures: 1. Butterfly valve body, 2. Flow stabilizing pipe, 3. First positioning ring, 4. Horizontal plate, 5. Second positioning ring, 6. Vertical plate, 7. Air box, 8. Air guide pipe, 9. Support plate, 10. Gearbox, 11. Wheel disc, 12. First flange, 13. First positioning hole, 14. Second flange, 15. Second positioning hole. Detailed Implementation

[0017] The following drawings will disclose several embodiments of this utility model. For clarity, many physical details will be described in the following description. However, it should be understood that these physical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these physical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0018] Furthermore, in this utility model, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the utility model. They are merely used to distinguish components or operations described with the same technical terms and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model. Example

[0019] Refer to the instruction manual appendix Figure 1-3 A five-eccentric metal hard-seal butterfly valve includes a butterfly valve body 1, which has an inlet and an outlet. The outlet is connected to a flow stabilizing pipe 2 by welding, and the inner diameter of the flow stabilizing pipe 2 is larger than the inner diameter of the butterfly valve body 1. A first positioning ring 3 and a second positioning ring 5 are respectively installed on the inner walls of the two ends of the flow stabilizing pipe 2. The inner wall of the first positioning ring 3 is fixed with equally spaced horizontal plates 4 by welding, and the inner wall of the second positioning ring 5 is fixed with equally spaced vertical plates 6 by welding. Both the horizontal plates 4 and the vertical plates 6 are made of stainless steel with a thickness of 1 mm. The distance between adjacent horizontal plates 4 and adjacent vertical plates 6 is 10 mm. After the water flows through the valve plate, it enters the flow stabilizing pipe 2. Under the action of the horizontal plates 4 and the vertical plates 6, the water flow is stabilized, avoiding water flow impact on subsequent pipelines and reducing pipeline vibration. Example

[0020] Based on Embodiment 1, an air box 7 is installed at the top of the flow stabilizing pipe 2. An air guide pipe 8 is connected to the bottom center of the air box 7 through an opening. One end of the bottom of the air guide pipe 8 is connected to one end of the top of the flow stabilizing pipe 2. When the pressure of the air box 7 increases instantaneously, the pressure of the air box 7 will be squeezed to buffer the pressure and avoid the pressure change from causing violent vibration of the pipeline. Vertical support plates 9 are fixedly installed on the outer walls of both sides of the flow stabilizing pipe 2. The bottom ends of the air box 7 are fixedly connected to the top outer walls of the two support plates 9. Example

[0021] Based on Embodiment 1, a gearbox 10 is provided on the top of the butterfly valve body 1, a wheel 11 is provided at one end of the gearbox 10, a valve plate is provided inside the butterfly valve body 1, a first flange 12 is fixedly provided on the outer wall of the feed inlet of the butterfly valve body 1, and a first positioning hole 13 is opened at equal intervals on the outer wall of the first flange 12. A second flange 14 is fixedly provided on the outer wall of the end of the flow stabilizing pipe away from the butterfly valve body 1, and a second positioning hole 15 is opened at equal intervals on the outer wall of the second flange 14. The butterfly valve can be connected to the pipeline through the first flange 12 and the second flange 14.

[0022] Working principle of this utility model: Refer to the instruction manual appendix Figure 1-3 The butterfly valve body 1 is connected and fixed to the pipeline via the first flange 12 on the outer wall of the inlet and the second flange 14 on the outer wall of the flow stabilizing pipe 2 away from the butterfly valve body 1, using the first positioning hole 13 and the second positioning hole 15. After installation, when the fluid enters the butterfly valve body 1 from the inlet, the gear inside the gearbox 10 is driven by the wheel 11 to drive the valve plate to control the flow. Then the water flows out from the outlet and enters the flow stabilizing pipe 2. The horizontal plates 4 evenly distributed on the first positioning ring 3 and the vertical plates 6 evenly distributed on the second positioning ring 5 in the flow stabilizing pipe 2 guide the direction of the water flow, avoid the water flow direction from being disordered, stabilize the water flow, prevent the water flow from impacting the subsequent pipeline, and reduce pipeline vibration. At the same time, if the water pressure increases instantaneously after passing through the valve body, the pressure in the air box 7 at the top of the flow stabilizing pipe 2 will be squeezed and buffered to prevent the pipeline from shaking violently due to pressure changes. The air guide pipe 8 is responsible for the gas connection between the air box 7 and the flow stabilizing pipe 2 to ensure the realization of the pressure buffering function.

[0023] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A five-eccentric metal hard-seal butterfly valve, comprising a butterfly valve body (1), characterized in that: The butterfly valve body (1) includes an inlet and an outlet, and the outlet is connected to a flow stabilizing pipe (2) by welding. The inner walls of the two ends of the flow stabilizing pipe (2) are respectively equipped with a first positioning ring (3) and a horizontal plate (4). The inner wall of the first positioning ring (3) is fixed with horizontal plates (4) distributed at equal intervals by welding. The inner wall of the second positioning ring (5) is fixed with vertical plates (6) distributed at equal intervals by welding. The top of the flow stabilizing pipe (2) is equipped with an air box (7). The bottom center of the air box (7) is connected to an air guide pipe (8) through an opening. One bottom end of the air guide pipe (8) is connected to one top end of the flow stabilizing pipe (2).

2. The five-eccentric metal hard-seal butterfly valve according to claim 1, characterized in that: The top of the butterfly valve body (1) includes a gearbox (10), one end of which includes a wheel disc (11), and the inside of the butterfly valve body (1) is provided with a valve plate.

3. The five-eccentric metal hard-seal butterfly valve according to claim 1, characterized in that: The inner diameter of the flow stabilizing pipe (2) is larger than the inner diameter of the butterfly valve body (1).

4. A five-eccentric metal hard-seal butterfly valve according to claim 1, characterized in that: The two outer walls of the flow stabilizing pipe (2) are fixedly provided with vertically upward support plates (9), and the bottom ends of the air box (7) are fixedly connected to the top outer walls of the two support plates (9).

5. A five-eccentric metal hard-seal butterfly valve according to claim 1, characterized in that: The outer wall of the feed inlet of the butterfly valve body (1) is fixedly provided with a first flange (12), and the outer wall of the first flange (12) is provided with first positioning holes (13) distributed at equal intervals. The outer wall of the end of the flow stabilizing pipe (2) away from the butterfly valve body (1) is fixedly provided with a second flange (14), and the outer wall of the second flange (14) is provided with second positioning holes (15) distributed at equal intervals.

6. A five-eccentric metal hard-seal butterfly valve according to claim 1, characterized in that: Both the horizontal plate (4) and the vertical plate (6) are made of stainless steel, and the thickness of the horizontal plate (4) and the vertical plate (6) is 1mm. The distance between adjacent horizontal plates (4) and adjacent vertical plates (6) is 10mm.

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